KR102896423B1 - Liquid dispenser for animals - Google Patents

Abstract

The present invention relates to a pet waterer comprising a tank having an upper opening, a pump provided in the tank, a water supply pipe through which liquid pumped from the pump is delivered, an upper plate having an upper surface through which liquid flows, and a filter assembly disposed under the upper plate.

Description

Liquid Dispenser for Animals

The present invention relates to a waterer for supplying water to animals, for example, pets.

In addition to the recent increase in attachment and interest in pets, the number of people raising pets is increasing.

Like most mammals, pets need water to maintain their circadian rhythms and survive. Because pets are often left alone and have difficulty communicating with their owners, the demand for water dispensers that provide water to pets is increasing.

EP3315022A1, KR10-1825334B1, US2014/0053781, US2015/0313180, US2010/0095897, and US2012/0216751 (hereinafter referred to as "prior art") disclose beverage containers for pets. However, these beverage containers have various problems that the present invention addresses.

EP3315022A1 (hereinafter referred to as “prior art 1”) discloses a drinking fountain for a pet, comprising a beverage container, a block having a built-in filter, a pump circulation pipe connected to a pump, and a functional insert housing for temporarily storing water supplied from a tank or the pump circulation pipe. The technical block and the beverage storage container may be integrally combined to form a single functional insert. The technical block may further include a first inductive transmission element outside the beverage bowl and a second inductive transmission element inside the technical block.

When the pump is running, the water stored in the beverage container flows through the filter to the technology block, and the water flowing into the technology block is moved upward to the upper surface of the functional insert through the pump circulation pipe.

However, when the outdoor temperature is high, such as in summer, the temperature of the water stored in the beverage container may also be high. Since the heating and cooling module of prior art 1 is provided within the technology block, it can only control the temperature of the water flowing from the pump circulation line, not the water stored in the beverage container, and the water stored in the beverage container may not be easily cooled.

Additionally, pets prefer different water temperatures depending on their species, but the drinking fountain disclosed in prior art 1 cannot control the temperature of the water stored in the drinking container.

Additionally, the water level gauge that detects the water level flowing into the tech block may become submerged in the tech block's water. Therefore, prolonged use of the water level gauge may result in inaccurate water level readings.

Additionally, many pets prefer water that drips rather than flows from a surface such as a functional insert housing, but since the functional insert housing or drink reservoir of prior art 1 is provided within a drink container, the pet has no option to drink from dripping water and can only drink from water that flows along the upper surface of the functional insert.

In addition, the functional insert of the prior art 1 is tall in the center and has a lower height toward the edge of the beverage container, making it difficult for the pet to drink water from the beverage container or water flowing on the surface of the functional insert.

Additionally, the top of the beverage container can be opened, so the water stored in the beverage container can easily be contaminated.

The upper surface of the functional insert of prior art 1 can be used as a drainage surface. Since pets must drink from shallow water flowing over the surface, it is difficult for them to consume sufficient water in a short period of time. In particular, most dogs drink water by rolling their tongues and using the back of their tongues, making shallow water spread over the surface difficult for dogs to consume.

In addition, in the beverage fountain of the prior art 1, when the operation is initially performed or when the capacity of the pump is increased, water supplied from the pump may surge upwards of the beverage fountain and splash around the beverage fountain.

Additionally, prior art 1 discloses a power cable that is extracted from a base plate positioned beneath a beverage container and connected to an external power supply. An external power control adapter and a first inductive transmission element are provided on the base plate and positioned beneath the beverage container, and a second inductive transmission element is provided on the bottom of the beverage container within a functional insert and aligned with the first inductive transmission element.

This structure may only allow power to be transmitted from the first inductive transmission element provided on the base plate to the second inductive transmission element provided on the beverage container and to another module provided on the functional insert, and may not be able to transmit power from the second inductive transmission element to the first inductive transmission element.

Therefore, without an external power supply, the electronic devices provided on the base plate cannot operate and their functionality is limited to the devices in the technical blocks.

Additionally, there is a risk of electric shock when external power is cut off due to external conditions. Furthermore, since prior art 1 does not disclose a method for controlling battery power usage, effective battery use may be difficult.

The high-conductivity electrode or circuit board provided on the base plate of the prior art 1 may be unintentionally heated by eddy currents induced by the magnetic field of the inductive transmission element. The first inductive transmission element is provided on the base plate and is adjacent to the electrode or wiring due to its high electrical conductivity. Consequently, eddy currents are generated in the electrode or wiring due to the magnetic field of the first inductive transmission element or changes in the magnetic field.

To prevent such unintended heating, a complex shielding structure may be formed around the first inductive transfer element, or the periphery of the first inductive transfer element may be coated with an insulating material.

Additionally, because the power cable extends from the base plate attached to the beverage container, it can become tangled and damaged when the beverage fountain is rotated or moved by a pet. The power cable can be irritating to pets, and there is a risk of electric shock if the pet bites on it.

This structure may interfere with the alignment of the first and second inductive transmission elements due to impact applied to the base plate, thereby limiting their functionality. Furthermore, since the power cable is fixed to the base plate, impact on the power cable may affect its alignment.

Prior art 1 discloses a base plate having a protrusion (or nose). A recess is formed at the bottom of the beverage container, and the beverage container is placed on the base plate so as to be positioned on the nose of the base plate. The functional insert of the beverage container may further include a recess.

The functional insert of prior art 1 discloses that it includes a pump, a filter and an inductive transmission element, but does not disclose a specific arrangement or support structure within the functional insert.

Therefore, the filter, pump or inductive transmission element within the functional insert may be displaced or damaged due to physical impact occurring during the process of separating the functional insert from the beverage container.

Additionally, the pump and heating/cooling elements in the technology block of the functional insert may continue to operate when the water level is low or when the water is being replaced, resulting in high power consumption.

Additionally, because the lower surface of a functional insert with a recess includes a separate waterproof housing to prevent water ingress, it may be difficult to remove the housing and repair or clean the functional insert. Furthermore, the waterproof housing design and internal structure are dense and compact within the internal space of the housing, which may complicate the structure of the functional insert and housing, potentially reducing durability.

In addition, since the filter of the prior art 1 is provided only on one side of the technology block, water stored in the beverage container flows in only through one side of the technology block, making it difficult to achieve full circulation of the water.

Additionally, the pump is equipped with a technology block, so if the pump needs to be repaired, the technology block must be disassembled.

Additionally, a UV (ultraviolet lay) filter can be installed in the pump circulation pipe to sterilize the water being transported to the pump circulation pipe, but it cannot sterilize the water stored in the beverage container.

Prior art 1 discloses a UV filter that irradiates ultraviolet light to sterilize water. However, for the safety of users and pets, the ultraviolet light may not be visible from outside the drinking fountain. Even if ultraviolet light is unintentionally emitted, exposure to ultraviolet light is not associated with alleviating seasonal influenza.

US 2015/0313180 (hereinafter referred to as "Prior Art 2") discloses a pet fountain assembly comprising a pump module comprising a pump and a filter, and a water supply pipe connected to the pump. A bowl is positioned above the pump to temporarily store water supplied from the water supply pipe, and a dome can cover the pump module and provide a drainage channel.

The wire of Prior Art 2 is directly connected to the pump, extends outside the pet fountain assembly, and is secured to an electrical outlet. Therefore, impacts to the pet fountain assembly or the wire can easily damage or disconnect the connection between the pump and the wire. Furthermore, because the wire is secured to the pet fountain assembly, it can easily be twisted or pulled when the pet fountain assembly is rotated or moved by the pet.

Therefore, the durability of the pet fountain assembly may be reduced, it may be dangerous due to the possibility of electric shock from short circuits, and it may be difficult to repair.

US 2012/0216751 (hereinafter referred to as "Prior Art 3") discloses an animal watering device comprising a filter and a pump located within a water bowl, with a power cord connected to the pump and extending outside the water tank. Because the power cord is connected to the pump and secured to the water tank, it is difficult to disassemble and assemble the water tank and pump, and the interior of the animal watering device is difficult to clean. Furthermore, the usable range of the animal watering device is determined by the length of the power cord, limiting its usability.

The pet watering device disclosed in US 2010/0095897A1 includes a tank for storing water, a pump installed on the bottom of the tank, a fluid column connected to the pump, and a cap coupled to a restrictor plate to create multiple spouts through which water is discharged. However, water supplied from the fluid column sprays water only from specific locations through the spouts, and the spacing between the spouts is narrow, making it difficult for multiple pets to drink simultaneously. Furthermore, the upper surfaces of the spouts and the restrictor plate are covered with caps, so pets can only drink water dripping from specific locations and cannot drink flowing water.

Additionally, pets are afraid of water splashing on them. Water dripping from a specific location through a spout can splash on pets when they drink, which can be a source of avoidance.

KR 10-1825334B1 discloses a 'cat water fountain' including a main body module storing water inside, a submersible pump provided on the inner surface of the main body module, and a discharge structure composed of a three-stage circular plate-shaped section.

The above-mentioned "cat water fountain" supplies water to a bowl whose slope becomes steeper towards the edge. The direction of flow of the water supplied to the bowl changes upward towards the edge. This structure weakens the driving force of the water from the discharge hole provided at the center toward the edge. Accordingly, the supplied water does not fall from the edge above the discharge structure toward the water tank, but flows along the outer surface of the discharge structure. Therefore, the above-mentioned "cat water fountain" has the problem that it is difficult for pets to drink the falling water, and it is difficult for multiple pets to drink water at the same time.

The problem that the present invention seeks to solve is to provide fresh and clean water to pets and to provide water at a temperature preferred by pets.

Another object of the present invention is to provide a waterer capable of preventing contamination from the outside of the waterer, such as from a pet's snout.

Another object of the present invention is to provide a waterer capable of supplying running water preferred by a pet.

Another object of the present invention is to provide a waterer capable of supplying water to a pet at a temperature that is controlled and maintained based on the pet's species or user input.

Another object of the present invention is to provide a water supply device capable of accurately detecting the temperature of water stored in the water supply device and controlling a thermoelectric regulator based on the detected temperature.

Another object of the present invention is to provide a water heater capable of rapidly heating and/or cooling water stored in the water heater.

Another object of the present invention is to provide a water dispenser that accurately detects the amount of water stored in the dispenser and operates based on the detected amount of water.

Another object of the present invention is to provide a waterer that accurately detects the proximity of a pet approaching the waterer and operates based on the detected proximity.

Another object of the present invention is to provide a water supply device that insulates a space in which water is stored.

Another object of the present invention is to provide a water supply device capable of efficiently filtering and sterilizing water.

Another object of the present invention is to provide a water supply device that can operate on battery power and power supplied from an external power source.

Another object of the present invention is to provide a waterer capable of operating in a power-saving mode based on whether a battery for operating the waterer is being charged or whether the waterer is being supplied with power from an external power source.

Another object of the present invention is to provide a waterer that can alleviate seasonal depression in pets and users.

Another object of the present invention is to provide a water dispenser with excellent aesthetics.

Another object of the present invention is to provide a water dispenser that is easy to repair, clean and control.

Another object of the present invention is to provide a water dispenser that can be used safely.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the description below.

In order to achieve the above object, a water supply device according to an embodiment of the present invention comprises: a water tank for storing water and having an opening formed at the upper side; a base for supporting the water tank; a pump having an inlet for sucking water stored in the water tank and a discharge port for discharging the water; and a water supply plate covering the opening and having a water supply hole through which water discharged from the pump flows.

The above tank includes an outer wall and an inner wall.

The inner wall extends upward at a first angle, and the outer wall extends upward at a second angle different from the first angle.

The outer wall and the inner wall intersect at the top of the tank, and a space is formed between the inner wall and the outer wall.

Alternatively, the water dispenser comprises an outer wall (210) that slopes inward from the bottom to the top; an inner wall (220) that is formed in a cylindrical shape to define a storage space and has an upper end connected to the upper end of the outer wall; a pump (192) that has an inlet (192c) for sucking water stored in the storage space and an outlet (192a) for discharging the water; and a bottom connected to the lower end of the inner wall (220).

Alternatively, the water tank comprises an inner wall, an outer wall, and a bottom extending from the inner wall, a space formed between the inner wall and the outer wall, a tank storing water in the inner wall and the bottom; a base supporting the tank; and a cover closing an upper opening of the tank.

The above base has at least one electronic temperature device for changing the temperature of water in the tank.

The electronic temperature device has a heat transfer plate exposed through an opening formed in the bottom of the tank.

The above cover includes a filter; and an upper plate provided on the upper side of the filter.

The above pump is provided in the tank and pushes water to the upper plate.

Specific details of other embodiments are included in the detailed description and drawings.

According to the pet waterer of the present invention, one or more of the following effects are achieved.

You can provide your pet with fresh, clean water and water at the temperature that your pet prefers.

It can prevent contamination of the waterer from external sources such as a pet's snout.

You can provide your pet with running water that he or she prefers.

Water can be supplied to pets at a controlled and maintained temperature based on the pet's species or the user's preference.

The temperature of water stored in the water heater can be accurately detected and a thermoelectric regulator can be controlled based on the detected temperature.

Water stored in a water heater can be quickly heated and/or cooled.

It can accurately detect the amount of water stored in the water dispenser and operate based on the detected amount of water.

It can accurately detect the proximity of a pet approaching a water dispenser and operate based on the detected proximity.

The space where water is stored can be insulated.

It can efficiently filter and sterilize water.

It can operate on battery power and power supplied from an external power source.

The battery that operates the water dispenser can be charged and can operate in power saving mode based on whether the water dispenser is being powered from an external power source.

It has excellent aesthetics and can alleviate seasonal depression in pets and users.

Easy to repair, clean and control, and safe to use.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

FIG. 1 is a drawing showing a pet waterer according to a first embodiment of the present invention, wherein FIG. 1A is a perspective view showing a state in which a float is open, FIG. 1B is a perspective view showing a state in which the float is closed, FIG. 1C is a perspective view showing a bottom surface of the pet waterer shown in FIG. 1A, FIG. 1D is a perspective view showing the inside of the tank shown in FIG. 1A, FIG. 1E is a perspective view showing the inside of the tank with the secondary filter shown in FIG. 1D removed, FIG. 1F is a perspective view showing the bottom cover of the pet waterer shown in FIG. 1E, and FIG. 1G is a bottom view showing the base of the pet waterer shown in FIG. 1A.
Fig. 2 is an exploded perspective view of the pet waterer illustrated in Fig. 1, wherein Fig. 2A is an exploded perspective view of the upper cover positioned above the water tank, and Fig. 2B is an exploded perspective view of the base.
FIG. 3A is a cross-sectional view of the water supply assembly illustrated in FIG. 2A, and FIG. 3B is a perspective view of a float of a pet waterer according to another embodiment of the present invention.
FIG. 4 is a drawing showing the upper cover shown in FIG. 2A, wherein FIG. 4A is a perspective view of the upper filter, FIG. 4B is a perspective view showing the water supply assembly disassembled from the filter assembly, FIG. 4C is a perspective view showing the upper filter disassembled from the filter guide, FIG. 4D is a perspective view of the filter guide, and FIG. 4E is a partial perspective view showing the filter slot and filter tray of the filter guide.
FIG. 5 is a cross-sectional view of a pet waterer according to one embodiment of the present invention, wherein FIG. 5A is a cross-sectional view of the pet waterer illustrated in FIG. 1, FIG. 5B is a cross-sectional perspective view of the pet waterer illustrated in FIG. 5A, and FIG. 5C is a cross-sectional view of the water tank illustrated in FIG. 5A.
Figure 6 is a perspective view of the secondary filter illustrated in Figure 1D.
Fig. 7 is a drawing of the bottom cover shown in Fig. 1E, where Fig. 7A is a perspective view showing the upper side of the bottom cover, and Fig. 7B is a perspective view showing the lower side of the bottom cover.
FIG. 8 is a drawing showing a base and components provided on the base, where FIG. 8A is a perspective view of the base, FIG. 8B is a perspective view of the upper frame separated, and FIG. 8C is an exploded perspective view of the base.
FIG. 9A is a perspective view showing the center plate separated from the lower frame and heat sink of the base, FIG. 9B is a perspective view of the base with the center plate on the heat sink, and FIG. 9C is an exploded perspective view of the base located under the upper cover.
FIGS. 10A to 10C are drawings showing a temperature control device, wherein FIGS. 10A and 10B are exploded perspective views of a fan, a fan housing, a heat sink, a Peltier device, and a Peltier metal, and FIG. 10C is a perspective view showing the bottom surface of an assembly of the above components.
Figure 10D is an exploded perspective view showing the base, water supply assembly, filter assembly, upper rim and secondary filter, excluding the upper and lower frames.
FIG. 10E is a perspective view of the pet waterer shown in FIG. 1D from another angle, and FIG. 10F is a perspective view of the pet waterer shown in FIG. 10E without the upper frame.
Figure 11A is a perspective view showing a weight sensor of a pet waterer, and Figure 11B is an enlarged view of a cross-section of the base and a heat sink.
Figure 11C is a bottom view of the upper frame of the base.
Figure 12 is a schematic control block diagram of a pet waterer.
FIG. 13A is a cross-sectional view showing a fan, a heat sink, and a Peltier device of a pet waterer according to a second embodiment of the present invention, and FIG. 13B is a bottom view of the base of the pet waterer shown in FIG. 13A.
FIG. 14A is a drawing showing a fan, a heat sink, and a Peltier device of a pet waterer according to a third embodiment of the present invention, and FIG. 14B is a bottom view of the base of the pet waterer according to the third embodiment.

The advantages and features of the present invention, and the methods for achieving them, will become clearer with reference to the embodiments described in detail below together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and may be implemented in various different forms. These embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Like reference numerals designate like elements throughout the specification.

Hereinafter, the present invention will be described with reference to drawings for explaining a pet waterer according to embodiments of the present invention.

Not only do animals generally prefer drinking running water to stagnant water in containers, but there is also a need to provide fresh, clean water to animals. Referring to FIGS. 1A to 1G, a pet waterer (1) according to one embodiment of the present invention may include a base (100) in which a container or chamber (200) (hereinafter, referred to as a tank) configured to store liquid (e.g., drinking water) (hereinafter, also referred to as “water”) is disposed. An upper cover (300, 400) includes a filter assembly (300) and a water supply assembly (400), and may close an upper opening of the tank (200). The liquid may be distributed from the tank (200) to the water supply assembly (400), and may re-enter the tank (200) after passing through the filter assembly (300).

The base (100) may be formed by connecting an upper frame (110) and a lower frame (120). An electronic device may be stored inside the base (100), which may supply power to a pet waterer and cool water stored in a water tank (200). The upper and lower frames (110, 120) may be referred to as an upper cover and a lower cover, respectively. The side of the base (100) may include an exhaust port (115) through which air is discharged. The bottom surface of the base (100) may include an intake grill (121) through which air introduced into the base (100) passes, and an exhaust slot (122) through which air and liquid may escape.

Additionally, the base (100) may include a user interface (114) that allows a user to input commands for selecting a mode, water temperature, etc., and output information about the status and temperature of the water dispenser to the user. The base (100) may also include a socket or terminal (118) that can receive power from an external power source. The base (100) may be placed on a weight sensor (124). The weight sensor (124) may detect the weight or amount of water stored in the tank (200). A detailed description of the weight sensor (124) will be described later with reference to FIG. 11A.

The tank (200) may be referred to as a container or a tank. The tank (200) may be disposed on top of the base (100). The tank (200) may include an outer wall (210) and an inner wall (220). The inner wall (220) may define a space in which water is substantially stored, and the outer wall (220) may be spaced apart from the inner wall (210) to insulate water within the inner wall (220). A pump (192) may be provided within the tank (200) and may pump water to the water supply assembly (300). A secondary filter (240) may surround the pump (192) and filter foreign substances from water flowing into the pump (192). An upper rim (230) of the tank may define an upper opening of the tank.

The upper cover (300, 400) includes a filter assembly (300) and a water supply assembly (400), and can cover or close the upper opening of the water tank (200). The filter assembly (300) and the water supply assembly (400) can cover or close the upper opening of the water tank (200). The filter assembly (300) can be placed on the upper rim (230) of the water tank (200). The filter assembly (300) can filter foreign substances from water falling from the water supply assembly (400) by including a first filter surface (312) and a second filter surface (325a). The filter assembly (300) can include a filter slot (325), and a filter tray (326, see FIG. 2A) can be inserted into the filter slot (325) to function as an additional filter.

The water supply assembly (400) may be positioned above the filter assembly (300) and may protrude above the upper portion of the water tank (200). Typically, water is supplied from the water tank (200) to the water supply hole (421) of the water supply assembly (400) via a pump, flows across the upper plate (420), falls from the edge (420a) of the water supply assembly to the filter assembly (300), is filtered, and returns to the water tank (200) to circulate. As shown by the arrows in Fig. 1A, the water may spread outward along the upper surface of the upper plate (420) and fall from the edge (420a) to the filter assembly (300). The pet may drink water falling from the edge of the water supply assembly (300) or water flowing across the upper plate (420).

A float (410) can be inserted into the water supply hole (421). Water can be pumped by a pump (192) and flow through a water supply pipe (192b) connected to the water supply hole (421). Depending on the capacity of the pump (192), as shown in FIG. 1A, the water can push the float (410) upward, causing the float (410) to open the water supply hole (421) for water supply. When the pump (192) is stopped, the float (410) can completely close the water supply hole (421), as shown in FIG. 1B.

The upper cover (300, 400) including the filter assembly (300) and the water supply assembly (400) can be easily lifted from the tank (200). FIG. 1D illustrates the interior of the tank (200) with the upper cover (300, 400) lifted from the tank and the bottom cover (250) seated on the bottom of the tank (200). The bottom cover (250) may include a pump cover (251) covering the pump (192) and an outer ring (256) covering the outer portion of the bottom of the tank (200). The secondary filter (240) may be seated on the outer ring (256) of the bottom cover (250) and surround the pump cover (251).

The bottom surface of the water tank (200) may further be provided with a metal (191a) (hereinafter also referred to as a 'heat transfer unit'). The metal (191a) may be in contact with a Peltier device (191b) or a thermoelectric cooler (TEC) mounted on the base (100). The Peltier device (191b) and the metal (191a) may heat or cool water within the water tank (200). A water temperature sensor (193) may protrude through the bottom of the water tank (200) and measure the water temperature within the water tank (200).

The tank (200) may be transparent. The upper frame (110) of the base (100) may further include a guide rib (113) and a guide groove (119). The guide rib (113) may support the inner wall (210) of the tank. The outer wall (220) may be inserted into the guide groove (119). The upper frame (110) may include one or more screw holes or one or more bosses (117a) corresponding to grooves or holes in the fan housing (170) described below. The plurality of screw holes or the plurality of bosses (117a) may be configured such that bolts or screws are inserted into the bosses (117a) to maintain the positions of devices (e.g., the fan housing (170), the heat sink (160)) in the base (100).

Referring to FIG. 2A, the water supply assembly (400) may include an upper plate (420) and a plate support (430). The upper plate (420) may be positioned above the plate support (430). The plate support (430) may include a water supply pipe support (433) into which a water supply pipe (192b, see FIG. 3A) is inserted. A detailed description of the water supply assembly (400) will be described below with reference to FIGS. 2A and 3A.

The filter assembly (300) may include a filter guide (320) and an upper filter (310) disposed on the filter guide (320). The upper filter (310) may include a first filter surface (312), and the filter guide (320) may include a filter slot (325) and a second filter surface (325a). The filter tray (326) may include a filter material (e.g., a carbon filter). The filter tray (326) may be inserted into the filter slot (325) so as to be retractable and retractable. The filter guide (32) may include a guide surface (322) disposed below the first filter surface (312). The guide surface (322) may guide water falling through the first filter surface (312) to the filter slot (325). The filter assembly (300) may be disposed on the upper rim (230) of the tank (200) and may include inclined walls (313, 323) protruding outwardly. The upper filter (310) and the filter guide (320) may each be disposed on the upper rim (230) of the tank (200) and may include inclined walls (313, 323) protruding outwardly. The inclined walls (313, 323) may capture water falling from the water supply assembly (400).

The upper filter (310) and the filter guide (320) may have inner openings (311, 321) (also referred to as inner holes). The upper plate (420) and the plate support (430) may cover the inner opening (311) of the upper filter (310) and the inner opening (321) of the filter guide (320). A detailed description of the filter assembly (300) will be described below with reference to FIGS. 4A to 4D.

Referring to FIGS. 2A and 2B, the exterior of the base (100) may be formed by an upper frame (110) and a lower frame (120), and a Peltier device (191b), a heat sink (160), and a fan (180) for heating or cooling water in a water tank (200) may be arranged in the interior space of the base (100). The fan (180) may be provided on the lower frame (120) and arranged above the suction grill (121). The fan housing (170) may be arranged to surround the fan (180). The heat sink (160) may include a plurality of heat dissipation fins (162) arranged above the fan housing (170) and a heat dissipation plate (161) connecting the plurality of heat dissipation fins (162). A Peltier device (191b), a sterilizing light source (194) and a water temperature sensor (193) can be mounted on the heat sink (161).

The metal (191a) can be placed on top of the Peltier device (191b) and can function as a heat transfer plate or heat sink. The Peltier device (191b) can increase or decrease the temperature of the water when power is supplied. The fan (180) can exhaust cold or hot air through the exhaust port (115). In addition, the fan (180) can draw ambient air into the base (100) through the intake grill (121) to cool the heat sink (160) and/or the lower surface of the Peltier device (191b) during the cooling process.

A plurality of plates (130, 140, 150) may be provided between the heat sink (160) and the upper frame (110). The plates (130, 140, 150) may be referred to as separators or insulating plates, and a more detailed description will be provided later with reference to FIGS. 9A to 9C.

The above plates (130, 140, 150), the upper frame (110) and the bottom of the water tank (200) may all include openings through which the sterilizing light (194), the water temperature sensor (193) and the metal (191a) mounted on the heat sink (160) may be exposed to the water in the water tank (200). The outer wall (210) of the outer water tank (200) may be inserted into the guide groove (119) and the inner wall (220) may be provided between the guide ribs (113). The bottom of the water tank (200) may be fitted between the openings (112a) of the upper frame (110). A detailed description of the bottom of the water tank (200) will be described later with reference to FIG. 5C.

The pet waterer may have a sleek and efficient design to provide cool, running water to pets. The upper plate (420), plate support (430), filter guide (320), tank (200), secondary filter (240), bottom cover (250), and upper and lower frames (110, 120) of the base (100) may be made of acrylonitrile butadiene styrene (ABS) plastic, thermoplastic resin, or polycarbonate (PC). The upper filter (320) and secondary filter (240) may be made of metal (e.g., stainless steel) or thermoplastic plastic. The upper plate (420) may have a metal or ceramic coating, or may be made entirely of metal (e.g., stainless steel).

The outer wall (210) and inner wall (220) of the tank (200) may be transparent, but the upper rim (230), upper plate (420), plate support (430), upper filter (310), filter guide (320), secondary filter (240), bottom cover (250) and upper and lower frames (110, 120) of the base (100) of the tank (200) may be opaque. In an alternative embodiment, the outer wall (210) and inner wall (220) of the tank (200) may be made of glass, and the upper rim (230), upper plate (420), plate support (430), upper filter (310), filter guide (320), secondary filter (240), bottom cover (250), and upper and lower frames (110, 120) may be made of stainless steel or coated with ceramic to provide a smooth appearance.

More specifically, referring to FIGS. 1F, 2A, and 3A, the water supply assembly (400) may include the uppermost surface of the upper cover (300, 400). The upper plate (420) may be provided on the upper central portion of the water tank (200), and the plate support (430) may be partially inserted into the water tank (200). The plate support (430) may be bonded or fused to the upper plate (420). Alternatively, the upper plate (420) may be press-fitted into the plate support (430). The plate support (430) may have a hole disposed below the water supply hole of the upper plate (420).

The upper surface of the upper plate (420) may be inclined upward toward the water supply hole (421) and may also be inclined upward toward the outer edge (420a) of the upper plate (420). The upper surface of the upper plate (420) may be inclined at a predetermined angle toward the edge (420a) with respect to a horizontal axis parallel to the floor. The predetermined angle of the upper surface of the upper plate (420) may be 0 degrees to 45 degrees (for example, 2 degrees). The inclination of the upper surface of the upper plate may be maintained constant. Alternatively, the upper surface of the upper plate (420) may have a concave curvature to facilitate liquid collection. Alternatively, the upper surface of the upper plate (420) may be inclined downward toward the edge (420a) to facilitate liquid dripping from the edge (420a) of the upper plate (420). The water supply assembly (400) illustrated in the drawing may be readily interchanged with alternative water supply assemblies to suit various species of companion animals.

The outer edge (420a) of the upper plate (420) is curved so that water can easily roll off the edge of the upper plate (420). The upper surface of the upper plate (420) may be a smooth surface. The upper surface of the upper plate (420) may be formed as a hydrophobic surface to facilitate the movement of water flowing on the upper surface, but is not limited thereto. The upper plate (420) may be made of metal or plastic. In the drawing, the upper plate (420) is illustrated as having a disk shape, but may be formed in other shapes. For example, the upper plate (420) may be formed in a rectangular, hexagonal, or triangular plate shape. Alternatively or additionally, the upper plate (420) may optionally include a plurality of ribs or a plurality of guide grooves to guide the flow of liquid across the upper surface of the upper plate (420).

When the operation of the pump (192) is stopped, the water on the upper plate (420) may accumulate near the rim of the water supply hole (421) due to the slope around the rim of the water supply hole (421), and the water may not be recovered again through the water supply hole (421). Therefore, the slope around the rim of the water supply hole (421) can prevent the water from flowing back into the water supply pipe (192b). Alternatively, the upper plate (420) may have a surface or rim near the water supply hole (421) sloped downward, and the width or diameter of the water supply hole (421) may be larger than the width of the water supply pipe (192b), and with this structure, after the pump (192) is turned off, the water remaining on the upper plate (420) can be recovered again into the water tank (200) through the water supply hole (421). Alternatively, the upper plate (420) may be bent or inclined downward from the water supply hole (421) toward the outer edge (420a), in which case the pump may be stopped and water remaining on the upper plate (420) may continue to drip from the edge of the upper plate (420).

The water supply hole (421) is illustrated as being formed in the center of the upper plate (420) in the drawing, but the position of the water supply hole (421) is not limited thereto and may be provided in other positions. The position of the hole of the plate support (430) may correspond to the position of the water supply hole of the upper plate (420). The position of the pump discharge port (192a) may correspond to the position of the lower end of the water supply pipe support (433). The diameter (or width) of the water supply hole (421) and the hole (431) of the plate support (430) may be the same as the inner width or inner diameter of the water supply pipe support (433). Alternatively, the upper portion of the water supply hole (421) and the hole (431) of the plate support may have a diameter that increases from the lower portion of the water supply hole (421) to the upper surface of the upper plate (420). The water supply hole (421) and the hole (431) of the plate support are also abbreviated as holes (421, 431).

The upper surface of the plate support (430) may include one or more spokes (432) (or ribs) to support the upper plate and/or reinforce the rigidity of the water supply assembly (400). Alternatively, the spokes may be provided on the lower surface of the upper plate (420). The spokes may be support ribs having an inclination angle equal to the predetermined inclination angle of the upper plate (420). The plate support (430) can be easily separated from the upper filter (310) of the filter assembly (300), and the water supply assembly (400) can be easily replaced with another water supply assembly (400) having an upper plate (420) of a different shape.

The lower surface of the plate support (430) may include a protrusion (434) that is fitted into the rim (324) (or flange) of the filter assembly (300) and lowers the center of gravity of the plate support (430). The circumference of the protrusion (434) may be substantially the same as the circumference of the opening (311) of the upper filter (310) or may be slightly smaller than the circumference of the opening (311). Accordingly, the water supply assembly (400) may be mounted on the filter assembly (300), and the inside of the water tank (200) may be substantially sealed from the outside. The protrusion (434) may be coupled to or sealed with the openings (311, 321) of the upper filter (310) and the filter guide (320) described below.

The water supply pipe support (433) may extend from the bottom surface of the protrusion (434) toward the inside of the water tank (200) below the hole (431) of the plate support (430). The water supply pipe support (433) may be a hollow cylinder or a cylindrical shell. The water supply pipe (192b) may have an inlet connected to the pump discharge port (192a), and may extend through the passage of the water supply pipe support (433) and have an outlet connected or communicating with the water supply hole (421) and the hole (431) of the plate support (430).

The water supply pipe (192b) may be flexible, and the water supply pipe support (433) may extend vertically to support the water supply pipe (192b). Alternatively or additionally, the flexible water supply pipe (192b) may be bent to have a plurality of U-shaped bends that are arranged on the metal (191b) of the Peltier device (191b) before extending through the water supply pipe support (433), so that water flowing through the water supply pipe (192b) may be additionally heated or cooled by the metal (191b).

Alternatively, the water supply pipe (192b) may be formed of a solid material, in which case the water supply pipe support (433) may primarily serve to protect the water supply pipe (192b) rather than support the water supply pipe (192b). In this alternative embodiment, the water supply pipe support (433) may be optional. In another embodiment, the water supply pipe (192b) may be omitted, and the water supply pipe support (433) may be connected to the pump discharge port (192b) and function as a pipe to the water supply hole (421).

The inner surface of the water supply pipe support (433) and, optionally, each of the water supply hole (421) and the hole (431) of the plate support (430) may have a groove. The float (410) includes an interlocking hook (413) (or rib) that fits into the groove of the head (411), the stem (412) and the water supply pipe support (433), so that the float (410) can move up and down within the hole (421, 431). Alternatively, the rib (413) may be configured to maintain the float (410) in a fixed position within the hole (421, 431), and the float (410) may be partially inserted into the hole (421, 431) and may act as a diverter to change the direction of water flowing through the water supply pipe (420) without moving up and down.

The rib (413) may be a vertical extension sloping outward from the lower end of the stem (412) and may be V-shaped. The inner end of the rib (413) may be engaged at the lower end of the stem (412) so that the stem (412) may be easily inserted into the water supply pipe support (430). The outer end of the rib (413) may have an optional hook or vertical wall that fits into a groove in the water supply pipe support (430). The rib (413) may be flexible and may be bent slightly inward from the lower end of the stem (412) so that the outer end may move toward the stem (412) and fit within the water supply pipe support (430).

Referring to FIG. 3B, a float (410') of a water supply device according to another embodiment of the present invention may differ from the float (410) only in that the rib (413') may be a vertical wall (or vertical plate) extending from the outer surface of the stem (412). The outer end (or side) of the rib (413') may fit into a groove of the water supply pipe support (430). As shown in FIG. 3B, four ribs (413') may be provided at 90 degrees to each other around the stem (412). The inner surface of the water supply pipe support (430) may be provided with four vertical grooves through which the vertical side surfaces of the ribs (413') may move.

Referring again to FIGS. 2A and 3A, the stem (412) may have a width (or diameter) smaller than the width (or diameter) of the hole (421, 431), while the head (411) may have a width (or diameter) larger than the width (or diameter) of the hole (421, 431). The head (411) may resemble a dome (or cap) and may have a semicircular cross-section. Alternatively, the head (411) may have a frusto-conical shape with a wide top and a narrow bottom. The stem (412) may be T-shaped, and the head (411) may be joined or welded to the top of the stem (412). Alternatively, the head (411) and the stem (412) may be manufactured integrally together.

When water is discharged from the water supply hole of the upper plate, the water may be sprayed between the upper edge of the water supply hole (421) and the lower edge of the head (411). The water may be sprayed while forming a water film and may cover the upper surface of the upper plate (420). The water may fall from the edge (420a) of the upper plate (420) to the filter assembly (300). The shape of the head (411) and the water supply hole (421) may be configured so that the horizontal (or radial) velocity component of the water discharged through the water supply hole (421) together with the pumping capacity of the pump (192) can overcome the predetermined inclination angle of the upper plate (420) and fall from the edge (420a). Therefore, the float (410) may function as a diverter that changes the flow direction of the water from the upper side to the horizontal (or outward) direction.

Referring to FIGS. 2A and 4A to 4D, the filter assembly (300) may define an outer portion of the upper cover (300, 400). The upper filter (310) and the filter guide (320) of the filter assembly (300) may be disposed on the lower side of the upper plate (420) and the plate support (430) of the water supply assembly (400), and the filter guide (320) may capture water falling from the outer edge (420a) of the upper plate. The upper filter (310) may be optionally installed. The upper filter (310) and the filter guide (320) may be welded, bonded, or glued, or alternatively, the upper filter may be press-fitted onto the upper portion of the filter guide (320).

The upper filter (310) may be made of metal and may include a first filter surface (312) and an inclined wall (313) (or a filter guard). The upper filter (310) may also be referred to as a drip tray. The inclined wall (313) may be a wall that is inclined outward from the first filter surface (312). Water may fall onto the upper filter (310), and the inclined wall (313) may prevent water from splashing outward from the water dispenser. The first filter surface (312) may be a flat plate or a ring, and may include a plurality of holes through which contaminants may be filtered. The holes of the first filter surface (312) may have at least one shape of a circle, an arc, a slot, or another suitable hole shape to filter contaminants, and the size of the holes may be uniform or may vary based on the size of the contaminants to be filtered.

As illustrated in FIGS. 4A and 4B, the upper filter (310) may include an inner rim (314) defining an inner opening (311). The inner rim (314) may extend downward from the inner edge of the first filter surface (312) and may be provided around a flange (324) of the filter guide (320). The inner rim (314) may have a diameter greater than or equal to a diameter of the flange (324). When the upper filter (310) is coupled to the filter guide (320), the inner rim (314) may maintain a space between the upper filter (310) and the filter guide (320). The flange (324) may protrude upward from the inner opening of the upper filter (310), such that a protrusion (434) of the plate support (430) may be inserted onto the flange (324).

The filter guide (320) may be made of plastic and optionally have an inclined wall (323) (or guide guard). The inclined wall (323) of the filter guide (320) may correspond to the inclined wall (313) of the upper filter (310). The inclined wall (323) may be a wall inclined outward from the guide surface (322) of the filter guide (320). The inclined wall (313) of the upper filter may have a similar or identical inclination to the inclined wall (323) of the filter guide (320) and may be disposed on the inclined wall (323) of the filter guide (320).

FIG. 4B illustrates the water supply assembly (400) separated from the filter assembly (300) while the filter assembly (300) is seated on the upper rim (230) of the water tank (200). When the filter assembly (300) is seated on the upper side of the water tank (200), the inclined walls (313, 323) of the upper filter (310) and the filter guide (320) can protrude outwardly from the upper rim (230), and the angle between the upper rim (230) and the inclined walls (313, 323) can be set at a predetermined angle (e.g., 120 degrees). FIG. 4C illustrates the filter guide (320) still seated on the water tank (200) while the upper filter (310) is separated from the filter guide (320).

The upper end of the inclined wall (313, 323) may be flush with the upper plate (420) or may be positioned at a lower position of the upper plate (420) to facilitate the pet's intake of water. Alternatively, the inclined wall (313, 323) may be positioned at a higher position than the upper plate (420) to further prevent water from splashing out of the water dispenser. A space (or gap) may be formed between the upper end of the inclined wall (313, 323) and the edge (420a) of the upper plate (420), and the size of the space may be configured to allow the pet to easily access water dripping from the edge (420a) of the upper plate (420).

The lower rim (327) may extend downward from the lower side of the guide surface (322) and/or the inclined wall (323). The lower rim (327) may be a vertical wall. The inclined wall (323) may be mounted on the upper rim (230) of the tank (200), and the upper end of the inclined wall (323) may protrude outwardly from the tank. The predetermined angle may be formed between the upper rim (230) and the inclined wall (323). The upper cover (300, 400) may be easily lifted from the tank (200), allowing the filter assembly (300) to be easily cleaned and water to be easily replenished.

When the filter assembly (300) is mounted on the upper rim (230) of the tank (200), the filter assembly (300) and the water supply assembly (400) can together close the upper opening of the tank (200), insulate the tank (200), and prevent foreign substances from falling into the tank (200). The filter assembly (300) can close the outer side of the upper opening by being mounted on the upper rim (230). The water supply assembly (400) can close the inner side of the upper opening of the tank (200) by having the protrusion (434) of the plate support (430) cover the openings (311, 321) of the upper filter and the filter guide. The protrusion (434) can be mounted on the flange (324) of the filter guide (320).

The guide surface (322) may be the bottom surface of the filter guide (320) and may extend from the inner upper portion of the lower rim (327) or alternatively may extend from the lower inner portion or inner end of the inclined wall (323). As illustrated in FIG. 4C, similar to the inclined surface, the guide surface (322) may be inclined so that water flows downward toward the opening or filter slot (325). The guide surface (322) may also be inclined inward from the bottom of the inclined wall (323) toward the flange (324) and/or the opening (321), such that water may be guided toward the inner edge of the guide surface (322) (see FIG. 5A).

Water filtered through the first filter surface (312) can fall onto the guide surface (322) and be guided downward toward the filter slot (325). The upper filter (310) is connected to the filter guide (320) so that the first filter surface is spaced apart from the guide surface (322) to allow free flow of water. The guide surface (322) is similar to a ring-shaped inclined surface, and the end of the inclined surface is provided lower than the center of the inclined surface, so that water falling on the guide surface (322) through the first filter surface (312) can be guided toward the filter slot (325), filtered again, and returned to the water tank (200). Since the water can move along the guide surface (322) below the first filter surface, noise generated when water falls directly into the water tank (200) through the first filter surface (312) can be reduced.

The filter slot (325) may include walls (325b, 325c) protruding downward from the lower side of the guide surface (322) and a second filter surface (325a). The walls (325b, 325c) may include two side walls (325b) and a rear wall (325c), and the side walls (325b) and the rear wall (325c) may extend downward from the guide surface (322). The second filter surface (325b) may extend between the side walls (325b). The upper side of the filter slot (325) may be an opening of the guide surface (322). The bottom side of the filter slot (325) may be defined as the second filter surface (325a). The second filter surface (325a) may be plate-shaped and may include a plurality of holes through which water is filtered. Similar to the apertures of the first filter surface, the size and shape of the apertures of the second filter surface (325a) can be adjusted based on the type of contaminant to be filtered.

The filter tray (326) can be positioned inside the filter slot (325) and can have an outer circumference having the same dimensions as the inner circumference of the filter slot. The side wall (325b) and the rear wall (325c) can accommodate the filter tray, while the front surface of the filter slot (325) includes an opening, through which the filter tray (326) can be inserted.

A filter material (e.g., a carbon filter, a mesh filter, a porous filter, a guard board or an accordion filter, a strainer, etc.) (hereinafter also referred to as a filter material) is provided on the filter tray (326), so that when the water supply assembly (400) and the filter assembly (300) are positioned above the water tank (200), water can be additionally filtered and the water tank (200) can be insulated. The water can fall to the upper filter (310), be filtered through the first filter surface (312), flow along the guide surface (322) of the filter guide (320), flow through the filter material of the filter tray (326), and flow into the water tank (200) through the second filter surface (325a).

The filter tray (326) may include two side walls corresponding to the side walls (325b) of the filter slot (325), a rear wall corresponding to the rear wall (325c) of the filter slot (325), and a front wall sealing or closing the filter slot (325). The filter tray (326) may optionally include one or more walls extending between the front wall and the rear wall to maintain the position of the filter material. The filter tray (326) and/or the filter material may be easily replaced. A handle may optionally be provided on the front wall of the filter tray (326) to easily remove the filter tray (326) and/or the filter material.

The upper plate (420), plate support (430), upper filter (310), and filter guide (320) cover the upper opening of the tank to prevent contamination of water stored in the tank and insulate the water inside the tank (200). The first filter surface can prevent foreign substances such as food from the pet's mouth or snout from falling into the tank (200), and the filter material of the filter tray (326) can additionally filter foreign substances from the water before the water returns to the tank.

The openings of the upper filter (310) and the filter guide (320) may be located at the center of the upper filter (310) and the filter guide (320). The flange (324) may surround the opening (321) of the filter guide (320) and may be inserted into the opening (311) of the upper filter (310). At least a portion of the protrusion (434) of the plate support (320) may be inserted into the openings (311, 321) of the upper filter (310) and the filter guide (320), and the outer bottom surface of the plate support (430) may be placed on the flange (324) of the filter guide (320). The secondary filter (240) provided in the tank (200) may be fitted into the openings (311, 321) of the upper filter (310) and the filter guide (320). Further details regarding the secondary filter are described below with reference to Fig. 6.

Referring to FIGS. 2A and 5A-5C, the tank (200) may be formed of an outer wall (210), an inner wall (220), and an upper rim (230). The inner and outer walls (220, 210) may be formed as a single piece (e.g., injection molded plastic), or may be manufactured separately and then joined by connecting the upper ends of the outer wall (210) and the inner and outer walls (220). Alternatively, the inner and outer walls (220, 210) may be injection molded in halves together (e.g., a left half and a right half having halves of the inner and outer walls (220 and 210), and the halves may be bonded or fused to each other.

An upper rim (230) may be fitted to the upper ends of the inner and outer walls (220, 210). The outer wall (210) may include a stepped portion (211) extending to the concave rim on the upper end. The inner wall (220) may also include a stepped portion (224) extending to the concave rim on the upper end. The upper rim (230) may be formed in an inverted V shape and may be positioned on the concave rims on the upper ends of the inner and outer walls (220, 210). The upper rim (230) may be configured such that when the upper rim (230) is pressed into and/or attached to the concave rims of the inner and outer walls (220, 210), a seamless outer surface is formed from the outer wall (220) to the upper rim (230). The upper rim (230) can cover the connected upper portions of the inner and outer walls (220, 210) and can be detachable.

Alternatively, the upper rim (230) may be omitted. In this case, the outer wall (210) and the inner wall (220) may not include the step portions (211, 224), respectively, and the shape or inclination of the outer wall (210) and the inner wall (220) may be configured to support the filter assembly (300). When the upper rim (230) is omitted, the outer wall (210) and the inner wall (220) are joined at the top to cover the space (S1) formed between the inner wall (220) and the outer wall (210).

Alternatively, when the upper rim (230) is included, the ends of the outer wall (210) and the inner wall (220) may not be joined, and the upper rim (230) may serve to cover the space (S1). In this case, the upper rim (230) may be fixed to the outer wall (210) and the inner wall (220), and may be additionally bonded or sealed to the step portions (211, 224) of the outer wall (210) and the inner wall (220) to seal the space (S1).

The inner wall (220) may be cylindrical, and the outer wall (210) may slope outward from the top of the inner wall (220). The upper rim (230) may be sloped to match the slope of the outer wall (210). The tank (200) may have an overall trapezoidal cross-section or a truncated cone shape with a lower end narrower than the upper end, but the shape of the tank (200) is not limited to a truncated cone shape. For example, the outer wall (210) may also be cylindrical, and the upper rim (230) may not have a slope. This configuration makes the tank (200) cylindrical. When the tank (200) has a truncated cone shape with a diameter that decreases from the bottom to the top, the center of mass of the tank can be lowered, and the tank (200) can be stably positioned on the floor.

The lower ends of the inner and outer walls (220, 210) may be spaced apart from each other. A space (S1) may be provided between the inner and outer walls (220) and the space (S1) may be filled with air to insulate the tank (200) and keep the water stored in the tank (200) cold (or alternatively warm). The inner and outer walls (220, 210) may be made of a transparent material (e.g., glass or plastic), allowing a user to check the water level or potential contamination of the water in the tank (200). The upper rim (230) may be made of an opaque material (e.g., stainless steel or colored plastic) to enhance the aesthetic appeal of the tank (200).

The inner wall (220) may also include a bottom surface, and the bottom surface of the inner wall may include an outer bottom surface (221) and an inner bottom surface (223). The inner bottom surface (223) may be provided lower than the outer bottom surface (221), and a vertical wall (222) (or an extension) may connect the inner bottom surface (223) and the outer bottom surface (221). The inner bottom surface (223) may be a circular recessed portion within the bottom of the tank (200), and may be formed concavely downward from the outer bottom surface (221). The extension (222) may correspond to a vertical wall (112b) (or a flange) that extends downward and defines an opening of an upper frame (110) of the base (100).

The inner bottom surface (223) may be raised closer to the devices (e.g., Peltier device (191b), heat sink (160)) provided within the base (100), while the outer bottom surface (221) may be raised further away from the devices (e.g., center plate (130), heat sink (160)) capable of generating heat within the base (100). There may be a space (S2) (or gap) between the upper surface of the upper frame (110) of the base (100) and the heat sink (160), which may further insulate the outer bottom surface (221) of the tank (200). The outer bottom surface (221) may be bent to form a curved corner from the inner wall (220). Alternatively, the inner and outer bottom surfaces (223, 221) may be formed separately and then joined or welded to the bottom of the inner wall (220).

The diameter of the inner bottom surface (223) may be smaller than or equal to the diameter of the secondary filter (240). The inner bottom surface (223) may include a pump housing (292) in which a pump (192) is placed, and may also include a wire hole (226) into which wires of the pump (192) connected to a printed circuit board (195) and/or a battery (196) (see FIG. 10D) provided on the base (100) are inserted. A sealant or gasket may be provided in the wire hole to prevent water in the tank (200) from leaking into the base.

The inner bottom surface (223) may further include a Peltier hole (225) (or opening) through which a metal (191a) positioned on the upper portion of the Peltier device (191b) may be exposed. The Peltier hole (225) of the water tank (200) may have a size and shape corresponding to the size and shape of the upper portion of the metal (191a). A sealant or gasket may be provided in the wire hole (226) to prevent water stored in the water tank (200) from leaking into the base (100). Although the metal (191a) and the Peltier hole (225) are illustrated as circular, the shapes of the metal (191a) and the Peltier hole (225) are not limited thereto. For example, the metal (191a) and the Peltier hole (225) may have a rectangular shape. The inner bottom surface (223) may further include openings or holes through which the sterilizing light (194) and the water temperature sensor (193) protrude and pass, and a sealant or gasket may be provided in the openings for the sterilizing light (194) and the water temperature sensor (193) to prevent water from leaking into the base (100).

Referring to FIG. 1F, the pump housing (292) may be positioned near the center of the inner bottom surface (223), and the pump (192) may be provided at the center of the water tank (200) below the water supply pipe support (433), but the positions of the pump (192) and the pump housing (292) are not limited thereto. The Peltier hole (225) is positioned on the pump inlet (192c) side of the pump (192) so that water may be heated or cooled by the Peltier device (191b) and the metal (191a) and then introduced into the pump (192). The pump inlet (192c) may be configured to be adjacent to the metal (191a), and the Peltier hole (225) may be provided near or adjacent to the pump housing (292).

The metal (191a) can function as a heat sink by directly contacting the water stored in the tank (200) and the upper surface of the Peltier device (191b). The Peltier device (191b) can be mounted on the heat sink (160), and details of the Peltier device (191b), the metal (191a), and the heat sink (160) are described below with reference to FIGS. 10A to 10F. A gasket having high thermal conductivity is provided between the Peltier hole (225) and the Peltier device (191b) to seal the Peltier hole (225), and prevent water from penetrating into the base (100). The metal (191a) can also be bonded or bonded to the Peltier hole (225) so that the Peltier hole (225) can be sealed. The Peltier device (191b) can be positioned directly below the inner bottom surface (223) of the water tank (200), and water stored in the water tank (200) can be efficiently heated or cooled before flowing into the pump inlet (192c). The Peltier hole (225) is provided close to the pump housing (292), and water flowing into the pump inlet (192c) can be cooled (or heated) after passing through the metal (191a).

The pump housing (292) may be formed with at least two walls extending upward from an inner bottom surface. As illustrated in FIG. 1F, the pump housing (292) may have three walls to create a housing having an inner perimeter having dimensions (e.g., length and width) identical to the outer perimeter dimensions of the pump (192). A bumper or gasket having an elastic material (e.g., rubber) may be provided along the inner perimeter of the pump housing (292). The bumper may further secure and cushion the pump (192) within the pump housing (292).

The lower surface of the pump (192) may have at least one suction cup for securing the pump (192) to the center of the inner bottom surface (223). The pump housing (292) may be optional, and the pump (192) may be attached to the inner bottom surface (224) via the suction cup. The suction cup may also be optional, and the pump (192) may alternatively be secured within the pump housing (292) of the inner bottom surface (223). The pump (192) may be a submersible pump.

The inner bottom surface (223) may include a light housing (294) that guides light from the germicidal light (194). The light housing (294) may be cylindrical and surround an opening in the bottom of the inner bottom surface (223). Alternatively, there may be no opening, and light from the germicidal light (194) may be emitted through a transparent material of the inner bottom surface, and the light may be guided upward by the light housing (294) to sterilize water in the tank (200).

The sterilizing light (194) may be mounted on the center plate (130) (or disk) provided on the lower side of the heat sink (160) and/or the inner bottom surface (223). The sterilizing light (194) may include at least one light emitting diode (LED) or organic light emitting diode (OLED) that emits ultraviolet light to sterilize water in the tank (300). The sterilizing light (194) may include an LED or OLED that emits visible light. The light housing (294) may have a cylindrical shape, may block ultraviolet light from being directly emitted toward the user's eyes, and may guide or reflect the ultraviolet light upward to sterilize water flowing into the pump inlet (192c) and/or water flowing above the pump cover (251). The inner surface of the light housing may be formed of or coated with a reflective material. Alternatively or additionally, the germicidal light may include a light emitting diode that emits visible light (blue light or yellow light) that can be diffused into the water stored in the tank (200) to enhance aesthetics.

A control unit (C) within the base (100) may be provided on a printed circuit board (195) (PCB) (see FIG. 8B) and may control the germicidal light to operate at regular periodic intervals. The user may also select when to operate the germicidal light (194) via a user interface (114) and/or a mobile application.

A water temperature sensor (193) (e.g., a thermometer) may protrude through the central plate (130) and the inner bottom surface (223) to directly contact the water stored in the water tank (200) and measure the temperature of the water. The water temperature sensor (193) may be a probe protruding into the water tank (200) or may include a probe. Alternatively or additionally, a contamination sensor may protrude into the water tank (200) or be provided within the water tank (200) to detect the contamination level of the water in the water tank (200). The control unit (c) may operate the sterilizing light (194) based on the contamination level detected by the contamination sensor.

The inner bottom surface (223) may be optional, and an extension portion (222) extending below the outer bottom surface (221) may be welded or bonded to the center plate (130). In this configuration, the center plate (130) may include a pump housing (292) and a light housing (294). The center plate (130) may include a light hole (132), a wiring hole (136), and a Peltier hole (131) (see FIG. 9). The center plate (130) is described below with reference to FIGS. 8A to 9C.

Referring to FIGS. 2A and 6, the secondary filter (240) may be a cylindrical filter or strainer made of a hard material (e.g., metal or stainless steel) and may be easily separated from the water tank (200). The secondary filter (240) may be a strainer having a plurality of holes (241) and may filter out foreign substances from water. Typically, the secondary filter (240) may have a mesh structure. The secondary filter may include an upper rim (242) and a lower rim (243). In FIG. 6, the upper rim (242) and the lower rim (243) do not have holes formed therein, but the upper rim (242) and the lower rim (243) may optionally include holes. The secondary filter may be positioned on the bottom cover (250) and surround the pump cover (251).

The secondary filter may be cylindrical as shown in the drawing, or alternatively, may be an inverted truncated cone having a wide upper rim (242) and a narrow lower rim (243), which may increase the area in which the perforations are formed. For example, such a truncated cone shape may have a greater number of perforations. The secondary filter (240) may be hollow internally with openings at the top and bottom, and the water supply pipe support (433) may be easily inserted into the upper opening, and the pump cover (251) of the pump (192) and/or the bottom cover (250) may be easily inserted into the lower opening.

The diameter of the secondary filter (240) may be smaller than the diameter (or width) of the openings (311, 321) of the upper filter (310) and the filter guide (320), and the height of the secondary filter (240) may be smaller than the distance from the bottom of the tank (200) to the top of the flange (324) of the filter guide (320). When the pet waterer is assembled, the secondary filter (240) may not contact the flange (324) or the plate support (240). Alternatively, the secondary filter (240) may have a height equal to the height from the bottom of the tank (200) to the top of the flange (324), and may additionally support the plate support (430). The secondary filter (240) may or may not be required. Alternatively, the height and diameter of the secondary filter may be configured such that the upper rim (242) replaces the flange (324).

The water supply pipe (192b) and the water supply pipe support (433) can be arranged within the secondary filter (240), and the secondary filter (240) can cover the bottom surface (223) of the water tank (200), the water supply pipe (192), and the water supply pipe support (433), thereby improving the integrity of the appearance of the water supply device. When the secondary filter (240) is positioned on the bottom cover (250), the upper rim (242) can at least partially overlap the flange (324) of the filter guide (320).

The plurality of holes (241) can filter particles having a size larger than the plurality of holes (241). Similar to the first and second filter surfaces (312, 325a), the size and shape of the holes of the secondary filter can be adjusted based on the type of contaminant.

The size of the plurality of pores of the first filter surface (312) may be larger than the size of the plurality of pores of the second filter surface (325a), which in turn may be larger than the size of the plurality of pores of the secondary filter (240). The secondary filter (240) may filter smaller particles than the first and second filter surfaces (312, 325a). Alternatively, the size of the plurality of pores of the secondary filter (240) may be larger than the size of the plurality of pores of the first and second filter surfaces (312, 325a) to facilitate the flow of water toward the pump (192). The secondary filter (240) may be optional and may be configured to have various sizes and shapes.

Referring to FIGS. 1E, 5A, 5B, 7A, and 7B, the bottom cover (250) can be made of an opaque material (e.g., colored plastic or metal), can be positioned on the bottom of the tank (200), and can cover the inner and outer bottom surfaces (223, 221). Since the tank (200) can be transparent, the bottom cover (250) can cover the bottom of the tank (200), thereby hiding the wires inserted into the wire hole (226), and can also hide the pump (192), the light housing (294), the pump housing (292), the sterilizing light (294), and the water temperature sensor (193).

The outer ring (256) and the pump cover (251) may be manufactured separately and bonded or welded together, or the outer ring (256) may be maintained separately from the pump cover (251). In such separate configurations, at least one of the outer ring (256) and the pump cover (251) may be optional. The outer ring (256) may have a ring shape corresponding to the outer bottom surface (221), and the pump cover (251) may have a cap shape having a side formed by an extension (254) and/or a side having a plurality of openings that allow water to flow into the pump (192) provided under the pump cover (251).

The shape of the bottom cover (250) may correspond to the shape of the bottom of the tank (200) between the inner walls (220). Although the drawing illustrates the bottom cover (250) having a cylindrical inner wall (220), a ring-shaped outer bottom surface (221), a circular inner bottom surface (223), a corresponding ring-shaped outer ring (256), and a circular pump cover (251), the disclosed embodiment is not limited to a circular shape.

The pump cover (251) may protrude above the outer ring (256), which may be the outer or flat portion of the bottom cover (250). The pump cover (251) may protrude upwardly to form an interior space that may accommodate the pump (192), the pump housing (292), the sterilizing light (194), and the light housing (294). The pump cover (251) may have a cap (or dome) shape with a height equal to or greater than the height of the pump (192) and a lower diameter (or width) similar to the diameter (or width) of the inner bottom surface (223) of the tank. A plurality of extensions (254) (or ribs) may protrude upwardly from the inner edge of the outer ring (256) to form the side surfaces of the pump cover (251). The extensions (254) may be inclined inwardly from the outer ring (256) toward the pump cover (251).

A plurality of holes or openings are formed between the plurality of extensions (254) so that water can enter the openings and be sucked into the pump inlet (192c). The size of the openings may be larger than the size of the perforations (241) of the secondary filter (240) to facilitate free flow of liquid filtered by the pump (192). The spacing between the extensions (254) may vary. Alternatively, instead of the plurality of extensions (254), the side of the pump cover (251) may be a filter having perforations for additionally filtering foreign substances from the water. In this alternative embodiment, the size and shape of the apertures of the pump cover (251) may be smaller than the size and shape of the apertures (241, etc.) of the secondary filter (240), the first filter surface (312), and the second filter surface (325a), and may filter smaller particles than the secondary filter (240), the first filter surface (312), and the second filter surface (325a). Alternatively, the size and shape of the apertures of the pump cover (251) may be larger than the size and shape of the apertures (241, etc.) of the secondary filter (240), the first filter surface (312), and the second filter surface (325a), and may facilitate the flow of water to the pump inlet (192c).

The upper surface of the pump cover (251) may include an outlet hole (252) into which a pump outlet (192a) may be inserted. Alternatively, the pump outlet (192a) may be covered by the pump cover (251), and a water supply pipe (192b) may be inserted through the outlet hole (252). The upper surface of the pump cover (251) may also include a light hole or light housing (253) for guiding light from a sterilizing light (194).

As illustrated in FIG. 7B, the optical housing (253) of the pump cover (251) may extend below the upper surface of the pump cover (251) to fit around the optical housing (294) of the tank (200). Alternatively, the optical housing (253) of the pump cover (251) may be inserted into the optical housing (294) of the tank (200). In this alternative, the inner surface of the optical housing (253) may optionally be coated with a reflective layer so that light may be dispersed throughout the water within the tank (200).

The lower surface of the bottom cover (250) may include at least one rib (255) (or flange) inserted into a recess of the inner bottom surface (223) to space the pump cover (251) from the pump (192) and prevent lateral movement of the bottom cover (250). The flange (255) and/or the bottom cover (250) may have sufficient weight to maintain the bottom cover (250) on the bottom of the tank (200). Alternatively, the rib (255) may be provided at a location on the bottom cover (250) to space the bottom cover (250) from the outer bottom surface (221). The bottom cover (250) may be made of an opaque material, such as metal or colored plastic. Alternatively, a rib or flange may be provided extending upward from the inner bottom surface (223) or the outer bottom surface (221), which separates the bottom cover (250) and/or the pump cover (251) from the inner and outer bottom surfaces (223, 221) of the tank (200).

The secondary filter (240) can be fitted around the pump cover and positioned on the inner side of the outer ring (256). The widest width (or diameter) of the pump cover (251) can be smaller than or equal to the width (or diameter) of the lower rim (243) of the secondary filter (240). The outer ring (256) surrounds the pump cover (251) and can optionally include a groove into which the secondary filter (240) is inserted and aligned, and the groove can prevent lateral movement of the secondary cover (240).

The outer ring (256) can cover the outer bottom surface (221) of the tank (200). The overall diameter (or width) of the bottom cover (250) can be equal to or smaller than the width of the bottom of the tank (200). Since the tank (200) can be transparent, the bottom cover (250) can serve to cover the pump (192) and any wiring or adhesive visible under the bottom of the tank (200). The secondary filter (240) and the bottom cover (250) can be easily lifted from the tank (200) to easily correct displacement of the pump (192) or to clean the tank (200).

At least one of the secondary filter (240), the outer ring (256), and the pump cover (251) may be optional. For example, the secondary filter (240) serves to cover the pump (192), and the bottom cover (250) may be omitted. Alternatively, the pump cover (251) may be omitted from the bottom cover (250), and the secondary filter (240) may be inserted into the center hole of the outer ring (256). Alternatively, the pump cover (251) may be provided without the outer ring (256), and the secondary filter (240) may surround and maintain the position of the pump cover (251). Alternatively, the secondary filter (240) may be omitted, and the pump cover (251) may include a plurality of holes for filtering liquid.

Referring to FIGS. 2A to 2B and 8A to 8C, the inner and outer bottom surfaces (223, 221) of the tank (200) may be disposed on the upper surface of the upper frame (110). The lower frame (120) may be coupled (e.g., by snap-fitting, press-fitting, bolting, screwing, or bonding) to the upper frame (110). The upper and lower frames (110, 120) may each have a cap shape to form an outer wall (or side) together with the upper surface and the lower surface. The lower rim of the upper frame (110) may include a groove and a rib that are snap-coupled to corresponding grooves and ribs formed in the upper rim of the lower frame (120). The upper frame (110) of the base (100) can primarily function as an upper cover and can be joined to the lower frame (120) by snap-fitting, press-fitting, screw fastening, etc. to form a space in which electronic devices and cooling elements (e.g., printed circuit boards (114c, 195), proximity sensors (125), and heat sinks (160)) are installed or provided.

The outer surface of the lower frame (120) may have a convex curvature or a curved lower edge. The user can easily lift the waterer without having to grip the curved bottom edge of the lower frame (120) by wedging his or her fingers between the bottom surface of the lower frame (120) and the floor or ground. In addition, the curved bottom edge of the lower frame (120) can shake when an external force is applied to the waterer, and can return the waterer to its upright initial position. The curved edge of the lower frame (120) can prevent the waterer from completely turning over.

The upper frame (110) may include outer and inner covers (111, 112) forming outer and inner portions of the upper surface of the base (100). The upper surface of the base (100) may also include a vertical wall (112b) (or flange) extending downward from the inner cover (112) and forming an inner opening (112a). The flange (112b) may correspond to an extension (222) of the bottom of the tank (200), and the opening (112a) may correspond to an inner bottom surface (223). The inner bottom surface (223) may be a circular recess that protrudes downward and is inserted into the opening (112a).

Through the opening (112a), the metal (191a), the sterilizing light (194), and the water temperature sensor (193) mounted on the heat sink (160) can be exposed. Through the opening (112a), a circular central plate (130) corresponding to the shape of the opening (112a) can be exposed. In addition to the inner and outer bottom surfaces (223, 221) of the water tank (200), the outer and inner covers (111, 112) and the central and upper plates (130, 140) block the interior of the base (100) from water, so that devices provided on the base (100) (e.g., the fan (180), the Peltier device (191b)) are sealed from the water stored in the water tank (200).

The guide rib (113) can separate the outer and inner covers (111, 112). The outer bottom surface (221) of the inner wall (220) of the tank (200) can be secured to the inner cover (112) and positioned between the guide ribs (113). The guide rib (113) can extend along the circumferential direction of the upper surface of the upper frame (110) as a whole and can prevent the inner wall (220) of the tank (200) from moving in position. Alternatively or additionally, the outer bottom surface (221) can contact the inner cover (112).

The outer cover (111) may include a guide groove (119) (see FIG. 9A), and the lower end of the outer wall (210) of the tank (200) may be inserted into the guide groove (119). Alternatively or additionally, the lower end of the outer wall (210) may include a protrusion (or extension) that fits into the guide groove (119), and the outer wall (210) may be snap-coupled to the outer cover (111) of the upper frame (110) of the base (100).

The user interface (114) may be provided on the upper frame (110) of the base (100). Alternatively, the user interface may be provided on the lower frame of the base (100) or on the inner side of the upper rim of the tank. In this alternative embodiment, electronic devices such as the user interface (114) may be provided on the upper rim (230) of the tank, and the upper rim (230) may have an inner space to enclose electronic devices, wires, batteries, electrodes, and/or wireless power transmitters and receivers.

The user interface (114) allows the user to select the mode, temperature, etc. of the water dispenser. Although the user interface (114) is illustrated as having a button (114b) and/or a light emitting device (114e), the disclosed embodiment is not limited thereto, and the user interface (114) may be a digital display, an LCD, a touch screen, etc. For convenience of explanation, the user interface (114) is described as including a button (114b) and a light emitting device (114e). The user can control the water dispenser through a mobile application communicating via WiFi or Bluetooth, or a WiFi module of a control unit (C) provided on a printed circuit board (195), and more details will be described later with reference to FIG. 12.

The upper frame (110) of the base (100) may include at least one button hole (114a) into which at least one button (114b) is inserted. The button (114b) may be connected to a printed circuit board (114c). Based on a pressing pattern of the button (114b) by a user, the button (114b) may come into contact with the printed circuit board (114c) to transmit various types of signals to a control unit (C) on the printed circuit board (195). The upper frame (110) may further include at least one light hole (114d), and at least one light-emitting device (114e), such as a light emitting diode (LED) or an organic light emitting diode (OLED), may be provided on an upper side of the button on the printed circuit board (114c). The light emitting device (114e) can emit light of various wavelengths and colors through a light hole (114d) under the control of a control unit (C) on a printed circuit board (195), thereby indicating at least one of the status or operation of the water supply device.

Although a single light emitting device (114e) behind the light hole (114d) is illustrated, the shape of the light emitting device (114e) is not limited thereto. For example, the light emitting device (114e) may be ring-shaped and may include multiple LEDs or OLEDs, and the light emitting device (114e) may be installed in a groove formed in the upper frame (110) of the base (100). Alternatively, the light emitting device (114e) may be installed in the lower frame (120) of the base (100) or the upper rim (230) of the tank. The ring-shaped light emitting device (114e) may include multiple LEDs or OLEDs to calm animals that may suffer from seasonal affective disorder or seasonal depression. The light emitting device (114e) may also be used as a lamp or mood stabilizing light.

A user can select a first mode (e.g., ON mode) by pressing the button (114d) once, and the light emitting device (114e) can emit a first color (e.g., green) indicating that the water dispenser is turned on, and the pump (192a) can be operated. A user can select a second mode (e.g., OFF mode) by pressing the button (114d) twice, and the light emitting device (114e) can emit a second color (e.g., red) indicating that the water dispenser is turned off, and the pump (192a) can be turned off.

The user can also select a cooling mode or a fast cooling mode to operate the fan (180) and the Peltier device (191b) to cool the water, and the light emitting device (114e) can emit blue light. The user can also select a heating mode to operate the Peltier device (191b) to heat the water. Other modes can include a manual mode (where the user must further instruct whether to operate the pump (192) or cool or heat the liquid via the Peltier device (191b)) or an automatic mode in which the pump (192) and the Peltier device (191b) can be operated based on water temperature detected by the water temperature sensor (193) and/or at least one proximity sensor (125) and/or proximity information detected by the at least one proximity sensor.

The proximity sensor (125) may be a radar sensor that emits radio waves to detect when a pet is approaching the waterer. Because the proximity sensor (125) uses radar technology, it is not necessary to include a hole in the upper frame (110) through which the proximity sensor (125) transmits a signal. Alternatively, the proximity sensor (125) may transmit a signal (e.g., a laser signal) through a hole or opening provided in the upper frame (110), and an optional transparent film may cover the hole or opening.

The proximity sensor (125) may be mounted on the inner surface of the lower frame (120) or behind the outer walls of the upper and lower frames (110, 120) and may face outward, but the embodiments disclosed herein are not limited to such locations as long as the proximity sensor (125) can emit signals to the outside. A plurality of proximity sensors (125) may be mounted at equal intervals along the perimeter or inner surface of the lower frame (120). For example, when the lower frame (120) is circular, four proximity sensors (125) may be mounted 90 degrees apart from each other. As another example, three proximity sensors (125) may be mounted 120 degrees apart from each other. The number and arrangement of the proximity sensors (125) are not limited to three and four, and there may be more or less proximity sensors (125) mounted at various intervals within the base (100).

Alternatively or in addition, there may be a mounting portion extending from the inner surface of the upper frame (110) and/or the lower frame (120), and a recess (or cavity) may be formed on the upper surface of the mounting portion to accommodate the proximity sensor (125) and/or other electronic devices (e.g., printed circuit boards (114c and 195)). Alternatively, the upper rim (230) of the tank (200) may have a mounting portion protruding outwardly from the outer surface to accommodate the proximity sensor (125) and/or the camera (or image sensor). In another alternative, there may be a camera (or image sensor) provided in the upper frame (110) as part of the user interface (114), and the upper frame (110) may include a hole through which the camera (or image sensor) can capture an image.

The upper frame (110) may further include an exhaust port (or exhaust grille) (115) for discharging hot or cold air from the inside of the base (100) to the outside. Alternatively, the exhaust port (115) may be positioned on a side of the lower frame (120). The exhaust port (115) may be a vertical slot configured to align with an end of a heat dissipation fin (162) of a heat sink (160), details of which are described below with reference to FIGS. 10A to 10F.

The bottom surface of the lower frame (120) of the base (100) may include at least one leg (127) (or flange) that separates the base (100) from the ground. A plurality of base legs (127) (or flanges) that are spaced apart from each other along the circumferential direction of the lower frame (120) may be provided on the lower edge or bottom surface of the lower frame (120). A weight sensor (124) may also serve to separate the base (100) from the ground.

The bottom surface of the lower frame (120) may include an intake grille (121) through which ambient air may be drawn into the base via a fan (180) and an air/liquid exhaust slot (122) through which liquid (e.g., condensate) may be discharged. The intake grille (121) may include a plurality of arcuate slots or apertures extending circumferentially. Alternatively, the intake grille (121) may include a plurality of elongated slots extending radially outward from the center of the lower frame (120), may include spiral openings, or may include a grid or mesh grille having rectangular holes. The intake grille (121) may be positioned corresponding to the fan (180).

The discharge slot (122) may be an arcuate slot or hole formed on the outer side or outer edge of the bottom surface of the lower frame (120). The position of the discharge slot (122) may correspond to the end of the fan housing (170), and details of the flow path of liquid or condensate formed downward toward the discharge slot (122) will be described later with reference to FIGS. 10A to 10F.

Referring to FIGS. 8C to 9C, the center plate (130) may have a shape corresponding to the shape (e.g., circular) of the opening (112a) of the upper frame (110). The diameter of the center plate (130) may be slightly larger than the diameter of the opening (112a), and the center plate (130) and/or the upper plate (140) (hereinafter, also referred to as the “upper plate”) disposed on the center plate (130) may be coupled (e.g., welded, bonded, or fused) to the flange (112b) to cover the opening (112a). The center plate (130) may be formed integrally with the inner cover (112) and outer cover (111) of the base (100), or may be formed as a separate piece and later welded or joined to the flange (112b) of the inner cover (112) and/or the extension (222) and inner bottom surface (221) of the tank (200). Although FIG. 9B illustrates an example in which the center plate (130) has a pump housing (292) having a pump (192) disposed therein, the pump housing (292) may alternatively be provided on the inner bottom surface (223) of the tank (200), as illustrated in FIG. 1F.

The central plate (130) may include a Peltier hole (or Peltier opening) (131) into which a metal (191a) is inserted, a light hole (132) into which a germicidal light (194) may be inserted or exposed, and a wiring hole (136) through which a wire connected to a pump (192) within the tank (200) passes. The wiring hole (136) may include an optional cylindrical housing inserted into the wiring hole (226) to further insulate the wire and prevent liquid from seeping into the base (100) from outside the wiring hole (226 and 136). The metal (191a) can be inserted through the Peltier hole (131) of the central plate (130) and the Peltier hole (225) (Fig. 5C) of the inner bottom surface (223) of the water tank (200), and the metal (191a) is mounted on the Peltier device (191b) so as to heat or cool the liquid before it enters the pump (192).

The Peltier device (191b) may be mounted on the heat sink (160) and may be spaced apart from the heat sink (160) (and/or an optional top plate (140) provided on the heat sink (160)) by a gap or space (S3) that may serve to space the center plate (130). The length of the gap or space (S3) may be equal to the height of the Peltier device (191b).

The Peltier hole (131) of the central plate (130) may have a size and shape corresponding to the lower portion of the metal (191a) mounted on the heat sink (160). Alternatively, the Peltier hole (131) of the central plate (130) may have a size and shape corresponding to the upper portion of the metal formed smaller than the lower portion of the metal (191a), and the central plate (130) may be seated on the lower portion of the metal (191a). In this alternative embodiment, the gap or space (S3) between the central plate (130) and the heat sink (160) may be equal to the sum of the lower height of the metal (191a) and the height of the Peltier device (191b).

The central plate (130) may further include a water temperature sensor hole (133) through which a water temperature sensor (193) may protrude. The water temperature sensor (193) may include a base (193a) mounted on a heat sink (161) of a heat sink (160) and a probe protruding into the water tank (200) through an inner bottom surface (223) of the water tank (200). The Peltier device (191b), the germicidal light (194), the pump (192), and the water temperature sensor (193) may be electrically connected to a printed circuit board (195) and/or a battery (196, see FIG. 10D) provided on the printed circuit board (195).

The central plate (130) may have a circular shape corresponding to the shape of the inner bottom surface (223) of the tank (200). However, the embodiment disclosed herein is not limited to a circular central plate (130). For example, the central plate (130) may be rectangular and may have a shape corresponding to the heat dissipation plate (161) of the heat sink (160).

A center plate (130) may be positioned between and/or beneath a pair of side plates (150). The side plates (150) may have a height greater than the center plate (130) and may be positioned beneath the outer cover (111) and the inner cover (111, 112) of the upper frame (110) of the base (100). The side plates (150) may be spaced apart from each other above the heat sink (160) and/or the optional top plate (140) to form a gap or space (S2) (see FIGS. 5A-5B). The space (S2) beneath the side plates (150) may be in communication with the space (S3) beneath the center plate (130). The pair of side plates (150) may not be in contact with the center plate (130) and may be bonded to the lower surfaces of the outer cover (111) and the inner cover (112).

An optional top plate (140) may be placed on a heat sink (160) heat dissipation plate (161) (see FIGS. 5B, 5C, and 11B). Alternatively, the top plate (140) may be placed on a center plate (130) (see FIGS. 2B and 8C). The top plate (140) may include holes for exposing the Peltier device (191b), the germicidal light (194), and the water temperature sensor (193), in addition to holes for receiving wires passing through the wiring holes (227). The top plate (140), the side plates (150), and the center plate (130) may isolate the heat sink (160) from unintentional heating of the water tank (200) by heat dissipated by the heat sink (160) and/or the motor provided to the fan (180). The top plate (140), side plates (150), and center plate (130) may be made of an insulating material and may act as a gasket. Alternatively, the top plate (140), side plates (150), and center plate (130) may be made of metal.

Referring to FIGS. 9A and 10A to 10F, a heat sink (160) may be disposed below the center plate (130), the top plate (140), and the side plates (150), and may be disposed above the fan (180) and the fan housing (170). A heat sink (161) may be disposed below the center plate (130), the top plate (140), and the side plates (150). A plurality of heat sink fins (162) may be provided at the bottom of the heat sink (161) to face the top surface or exhaust port of the fan (180).

The heat sink (162) and the heat sink plate (161) may be formed of the same material, which may be a material with high thermal conductivity, such as a metal (e.g., copper or aluminum). The heat sink fins (162) may be arranged in a parallel structure configured to allow air to flow toward the exhaust port (115), and the ends of the heat sink fins (162) may be aligned with the exhaust port (115) when the upper frame (110) is coupled to the lower frame (120) (FIGS. 10E and 10F). The ends of the heat sink fins (162) and the exhaust port (115) may correspond to the left and right sides of the water cooler, and the user interface (114) may correspond to the front and the socket (118) may correspond to the rear. The end of the heat sink (160) corresponding to the exhaust port (115) may be curved to correspond to the curvature of the side wall of the upper frame (110). The corresponding ends of the top plate (140) and side plates (150) can be similarly curved.

Although the drawing illustrates a plurality of longitudinal heat sink fins (162) extending linearly across the heat sink (161), the embodiments disclosed herein are not limited to this configuration of the heat sink (160). For example, the heat sink (161) may be formed as a circular disk or ring, and the heat sink fins (162) may extend radially outward from the center of the heat sink (161), may be formed as annular rings extending circumferentially, or may be square or rectangular fins that face each other and are provided at equal intervals around the periphery of the heat sink (161). In another alternative embodiment, the heat sink (161) may be formed as a ring having holes, and the fan (180) may be inserted into the holes instead of being provided below the heat sink (160).

A Peltier device (191b), a water temperature sensor (193), and a germicidal light (194) may be arranged on the heat sink (161). Alternatively, the Peltier device (191b), the water temperature sensor (193), and the germicidal light (194) may be provided on either the top plate (140) or the center plate (130) and protrude through the opening (112a) of the upper frame (110) and the water tank (200).

The metal (191a) may be in direct contact with the water in the tank (200). The metal (191a) may be made of a metal having excellent thermal conductivity, such as copper or aluminum, but may alternatively be made of stainless steel or other materials having high thermal conductivity (or high heat transfer coefficient). The upper surface or a portion of the metal (191a) may have a ridge shape, or alternatively, a mesh grid shape to increase the surface area in contact with the water. Other shapes or contours may be used to increase the surface area. For example, the surface of the metal (191a) may be convex or concave, and may additionally include a mesh grid pattern or rows of ridges or fins (hereinafter also referred to as 'ridges'). The lower portion of the metal (191a) may be wider than the upper portion having the ridges. The Peltier hole (225) of the tank (200) (see FIG. 5C) can be sized to expose only the upper portion of the metal (191a), while the lower portion of the metal (191a) can prevent water from leaking through the Peltier hole (225) of the tank (200) to the base (100).

The Peltier device (191b) may be mounted on the upper surface of the heat sink (161) and may have a terminal to which voltage may be applied. When voltage is applied to the Peltier device (191b), heat may be transferred from one of the upper or lower parts to the other, thereby generating a temperature difference between the upper and lower parts.

During the heating process, the upper portion of the Peltier device (191b) may become hot and release heat, which may be transferred to the liquid in the tank (200) through the metal (191a), while the lower portion may become cold or absorb heat. As the fan (180) rotates, cool air may be released through the heat sink (160) and exhausted out of the exhaust port (115).

During the cooling process, the upper portion of the Peltier device (191b) may be cooled and the liquid in the tank (200) may be cooled through the metal (191a). The lower portion of the Peltier device (191b) may be heated. As the fan (180) rotates, the hot air may be dissipated through the heat sink (160) and exhausted out of the exhaust port (115).

To detect the temperature of the Peltier device (191b) or the heat sink (160), a temperature sensor may optionally be provided. When the temperature sensor detects that the temperature of the Peltier device (191b) and/or the heat sink (160) is higher than a preset temperature, the operation of the Peltier device (191b) is stopped, and the fan (180) may rotate to cool the heat sink (160) and/or the Peltier device (191b). Ambient air may be drawn upward into the base through the intake grill (121). The fan (180) may discharge the ambient air toward the plurality of heat dissipation fins (162) of the heat sink (160), so that the heat sink (160) and/or the Peltier device (191b) may be cooled, and the hot air may be discharged through the exhaust port (115).

A fan (180) is disposed on the lower frame (120) above the intake grille (121) and may be oriented so that air sucked in through the intake grille (121) can be discharged to the heat sink (160)'s heat dissipation fins (162). The fan (180) may include a hub (183) at the center and a plurality of blades (182) extending from the hub (183). A fan case or shroud (181) may surround the plurality of blades (182). The hub (183) may be rotated by a motor within the hub (183). The plurality of blades (182) may be inclined or curved to force air toward the heat sink (160). The fan case (181) may include a fastening hole (184) through which bolts or screws may fasten the fan case (181) to the fan housing (170). Alternatively, the fastening hole (184) may be used to fasten the fan case (181) to at least one of the upper frame (110) and the lower frame (120) of the base (100).

The fan housing (170) surrounds the fan case (181), supports the heat sink (160), and can guide the flow of air exhausted from the exhaust port of the fan (180). The center frame (173) of the fan housing (170) can have an inclined surface leading to the exhaust slot (122) and the exhaust port (115). The inclined surface of the center frame (173) can cover the side of the fan case (181). For example, if unexpected liquid flows into the base (100) through the exhaust port (115), the liquid can be guided to the inclined surface of the fan housing (170) and discharged out of the exhaust slot (122) and the exhaust port (115).

When the fan (180) is not operating, the liquid is more likely to fall into the tank (200) and the sides of the base (100) rather than into the exhaust port (115). When the fan (180) is operating, the exhausted air can prevent the liquid from flowing into the base (100) through the exhaust port (115). Additionally, any other liquid or condensate that may condense on the fan housing (170) can be discharged through the exhaust slot (122).

The inclined surface of the central frame (173) may guide exhaust toward the exhaust port (115). The height of the inclined surface of the central frame (173) may be less than or equal to the lower height of the exhaust port (115) so as not to block the exhaust port (115). The bottom surface of the inclined surface of the central frame (173) of the fan housing (170) may guide air exhausted from the fan (180) to the heat sink (160) and prevent surrounding air from escaping.

The top of the central frame (173) may have an opening (171, see FIG. 9C) configured to fit a fan (180) and/or a fan case (181), the slope extending from a side edge or end such that the longitudinal direction of the fan housing (170) corresponds to the longitudinal direction of the heat sink (160) and the top plate (140). The size and shape of the opening (171) may be sufficiently large to expose the exhaust of the fan (180) through the opening (171), and the central frame (173) may partially cover the fan case (181) such that a corner or side of the fan case (191) may be attached to the central frame (173) through a fastening hole (184). Alternatively, the size and shape of the opening (171) may correspond to the size and shape of the perimeter of the fan case (181) (e.g., square or circular). The height of the top of the central frame (173) may be greater than the height of the fan case (181) so that the heat sink (160) can be placed on the central frame (173).

The fan housing (170) may have a pair of side walls or side frames (172) extending upward to cover the sides of the heat sink (160). The side frames (172) may extend from the upper surface of the central frame (173) and the sides of the inclined walls of the central frame (173).

The center plate (130) may have a diameter or width greater than or equal to the distance between the side frames (172) of the fan housing (170), and the side frames (172) may include a recessed portion (172a) (or cutout), and a side portion of the center plate (130) extending beyond the width of the fan housing (170) may be provided in the cutout or recessed portion (172a). The recessed portion (172a) may separate the center plate (130) from the heat sink (160) by a space (S3). The distance from the lower end of the side frames (172) to the recessed portion (172a) may be greater than or equal to the distance from the lower end of the heat dissipation fins (162) of the heat sink (160) to the upper end of the Peltier device (191b). Alternatively, if the diameter of the center plate (130) is smaller than the distance between the side frames (172) of the fan housing (170), the recess (172a) may be omitted.

The side frame (172) may have a lower opening or cutout through which the side of the fan case (181) may be exposed, and the inclined surface of the central frame (173) may cover each side of the fan case (181). The height of the fan case (181) may be equal to or smaller than the height of the opening of the side frame (172). The end of the side frame (172) may be provided around the end of the fan case (181).

The fan housing (170) may include a screw hole (170a) (or boss) protruding from the side frame (172). Bolts or screws are inserted into the screw holes (170a) to attach the fan housing (170) to the upper frame (110), and the fan housing (170), the heat sink (160), the Peltier device (191b), the metal (191a) and the plurality of plates (130, 140, 150) can be pushed upward toward the upper surface of the upper frame (110) of the base (100) and the inner bottom surface (223) of the water tank (200), and the Peltier hole (225), the wiring hole (226) and the opening for the sterilizing light (194) and the temperature sensor (193) can be additionally sealed to prevent water in the water tank (200) from leaking into the base (100). Additionally, the screws inserted into the screw holes (170a) may help align the heat sink (160), the Peltier device (191b), the metal (191a), and the plurality of plates (130, 140, 150). Details regarding the connection of the screw holes (170a) to the upper frame (110) of the fan housing (170) are described below with reference to FIG. 11C.

The Peltier device (191b) and fan (180) can be connected to a control unit (C) (see FIG. 12) on a printed circuit board (195) and can be powered from an external power source via a socket (118) (or terminal) or via a battery (196). Details of the control unit (C) and the printed circuit board (195) will be described later with reference to FIG. 12.

The base (100) may include a battery (196). The battery (196) may be adjacent to a sidewall (172) of the fan housing (170) and mounted on a printed circuit board (196). The battery (196) may be rated at 3500 mAh (milliampere-hour). The battery (196) may be charged by external power applied to a socket (118) positioned near the battery (196). Alternatively or additionally, the battery (196) may be wirelessly charged via a corresponding charging pad. A wire may be plugged into the socket (118). The printed circuit board (195) may include an AC/DC converter for converting direct current to alternating current from an external power source. Alternatively, the battery (196) may be connected to a wireless power transmitter or receiver and may be wirelessly charged via the wireless power transmitter or receiver.

When the external power source is cut off or disabled, the battery (196) can power the pump (192), the germicidal light (194), the water temperature sensor (193), the Peltier device (191b) and/or the user interface (114). When the charge of the battery (196) is below a predetermined level and the socket (118) is not connected to an external power source, the control unit (C) can cause the light emitting device (114e) to emit or blink a specific color (e.g., red) to alert the user that the power supply is low, so that the user can supply external power to the water dispenser through the socket (118). In addition, the water dispenser can enter a power saving mode in which only certain devices (e.g., the pump (192)) are operated while other devices (e.g., the Peltier device (191b), the germicidal light (194)) are not operated. Details of the power saving mode are described below with reference to FIG. 12.

Referring to FIGS. 11A and 11B, the bottom surface of the lower frame (120) may further include a sensor frame (123) (e.g., a weight sensor frame) in which a water level sensor (124) (e.g., a weight sensor) may be accommodated. Although the embodiments disclosed herein are not limited to having a weight sensor for determining the amount of liquid contained in the container, for convenience of explanation, an embodiment in which the water level sensor (124) is a weight sensor is described.

The shape of the weight sensor (124) may correspond to the lower contour of the weight sensor frame (123). The weight sensor (124) may also act as a leg or cushion supporting the water dispenser and may protrude further downward than the leg (127) formed on the lower frame (120). The weight sensor (124) may be a strain gauge, pressure sensor, or load sensor that detects the weight (or pressure due to the weight) of water in the water tank (200) and is applied to the lower frame (120) of the base (100) and/or the bottom of the water tank (200). A control unit (C) provided on the printed circuit board (195) may determine the water level in the water tank (200) based on the measurement of the weight sensor (124).

The weight sensor frame (123) may include a recessed portion or step portion (123a) extending upward from the lower surface of the lower frame (120), and the lower portion of the weight sensor frame (123) may protrude from the lower surface of the lower frame (120). A cavity or chamber may be formed by the step portion (123a).

The weight sensor (124) may include a main body (124a) and a pad (124b) having a sensor. The elastic frame (124c) may be coupled to an inner opening of the main body (124a) through an extension (124e) formed on one side of the elastic frame (124c). The elastic frame (124c) may be inserted into a cavity formed by the step portion (123a) of the weight sensor frame (123), and the main body (124a) may be provided below the lower end of the weight sensor frame (123). The pad (124b) of the weight sensor (124) may extend beyond the leg (127) of the lower frame (120) such that the cushion height of the weight sensor (124) is longer than the length of the leg (127).

The weight sensor (124) may further include a protrusion or flange (124d) inserted into a second step portion (123c) (or intermediate step portion) formed in the weight sensor frame (123). The intermediate step portion (123c) may be formed concavely at the lower end of the weight sensor frame (123), but may not be formed concavely all the way to the step portion (124a). The flange (124d) may secure the main body (124a) of the weight sensor (124) to the intermediate step portion (123c) and provide stability and rigidity to the main body (124a).

The size and shape of the extension (124e) can be such that the main body (124a) of the weight sensor and the lower part of the weight sensor frame (123) can move toward or away from the ground while pressing the elastic frame (124c) depending on how much weight the tank (200) has. The may body (124b) and the elastic frame (124c) can be made of the same material (e.g., plastic) as the lower frame (120).

The pad (124b) can cover the end of the protrusion protruding from the elastic frame (124c). The protrusion and the pad (124b) can remain fixed even when the lower frame (120), the lower end of the weight sensor frame (123), and the main body (124a) move toward or away from the ground, and can pressurize the elastic frame (124c) according to the applied weight. When the surface of the step portion (123a) moves downward and touches the rear surface of the elastic portion (124c), the sensor of the pad (124b) can detect the applied pressure or weight. The pad (124b) can expand and contract according to the weight applied to the weight sensor (124) and can additionally include an elastic material (e.g., rubber) that acts as a cushion to protect the sensor. The upper surface of the elastic frame (124c) and the lower surface of the step portion (123a) are flat so that the pressure detected by the pad (124b) can be distributed evenly.

The combination of the weight sensor (124) and the weight sensor frame (123) is not limited to a configuration including an extension portion on the main body (124a) of the weight sensor and a step portion (123a, 123c) within the weight sensor frame (123). As an alternative, the main body (124a) of the weight sensor (124) may be snap-fitted or press-fitted into the frame (123) which has an opening or cavity having a perimeter corresponding to the perimeter and/or upper contour of the main body (124a) of the weight sensor (124) of the frame. As another alternative, the main body (124a) and the pad (124b) of the weight sensor may be manufactured as a single weight sensor (124).

The pad (124b) of the weight sensor (124) can function as a leg on which the water supply can be placed, and separates the bottom surface of the lower frame (120) of the base from the ground so that air can be sucked in through the suction grill (121).

The base (100) may be provided with additional sensors, such as the optional temperature sensor described above, a gyro sensor for detecting the inclination (or slope) of the water dispenser, and a light sensor for detecting the ambient light of the space in which the water dispenser is placed. In addition, the water dispenser may be provided with a support that allows the control unit (C) to adjust the height and/or inclination of the water dispenser in response to measurements from the gyro sensor.

Referring to FIG. 11C, which relates to FIGS. 1F, 1G, 2B, 8A-8C, 9A and 9B, the lower surface of the upper frame (110) may include various holes and bosses to maintain the positions of the heat sink (160), the fan housing (170), the printed circuit board (195), the battery (196), the proximity sensor (125) and the user interface (114) within the base (100) and to assist in coupling the upper frame (110) to the lower frame (120). The fan housing (170), the top plate (140), the side plate (150) and the lower frame (120) may have holes, bosses or recesses that correspond to the various holes and bosses of the upper frame (110). Screws or bosses can be inserted into the holes and bosses of the upper frame (110), fan housing (170), top plate (140), and the side plate (150) can push the fan housing (170), fan (180), heat sink (180), center plate (130), Peltier device (191a), metal (191b), top plate (140), and/or side plate (150) toward the upper frame and the inner bottom surface (223) of the water tank (200) to prevent water from seeping into the base (100).

More specifically, the side wall of the upper frame (110) may include a socket opening (118a) (or socket hole) through which a terminal or socket (118) may be exposed for plugging in. The battery housing (196a) may be formed with a wall extending downward. A portion of the wall of the battery housing (196a) may be curved to correspond to the curvature of the battery (196). Four bosses (195a) extending downward near the corners of the battery housing (196a) may maintain the position of the printed circuit board (195) under the battery (196).

The user interface housing (114f), formed as a wall or frame, may extend downward to maintain the position of the printed circuit board (114c) of the user interface (114). Similarly, the proximity sensor housing (125a), formed as a wall or frame, may extend downward to maintain the position of the upper portion of the proximity sensor (125). Although two proximity sensor housings (125a) are illustrated in FIG. 11c, there may be more or fewer proximity sensor housings (125a) depending on the number of proximity sensors (125) mounted on the base. The positions of the user interface housing (114f), the proximity sensor housing (125a), and the battery housing (196a) may correspond to the positions of the user interface (114), the proximity sensor (125), and the battery (196), respectively, and the position of the boss (195a) may correspond to the position of the printed circuit board (195).

The bosses (117a, 117b, 117d) (or screw holes) may be formed as holes protruding through the upper surface of the upper frame (110). The boss (117c) may extend downward and optionally have a hole protruding through the upper surface of the upper frame (110).

The boss (117a) may be a screw hole or a bolt hole. A bolt or screw may be inserted into a recess (170b) formed in the side frame (172) through the boss (117a) to maintain the position of the fan housing (170) and the heat sink (160). Each side frame (172) of the fan housing (170) may include two recesses (170b) having a shape corresponding to the bolts inserted through the boss (117a). Four bosses (117a) may be provided at positions corresponding to the recesses (170b) in the fan housing (170). The top plate (140) includes a hole (140a) located on the upper side of the recess (170b), so that a bolt may be inserted into the recess (170b). Similarly, a pair of frames (150) may include a cutout, recess or opening (150a), and a bolt may pass through the cutout, recess or opening (150a) of the frame (150) and into the recess (170b). Accordingly, the top plate (140) and the pair of plates (150) may not obstruct the path to the recess (170b).

The boss (117b) may be a bolt hole or screw hole smaller than the boss (117a). The bolt or screw may be inserted through the boss or screw hole (170a) protruding from the side frame (172) of the fan housing (170) and coupled to the boss (117b). Each side frame (172) of the fan housing (170) may include two screw holes (170a) adjacent to the recess (170b). Four bosses (117b) may be provided at positions corresponding to the screw holes (170a) in the fan housing (170). A bolt or screw is inserted upwardly through the screw hole (170a) into the corresponding boss (117b) to maintain the position of the fan housing (170) and apply pressure to the heat sink (160), the Peltier device (191a), the temperature sensor (193), the germicidal light (194) and the metal (191b), thereby preventing water from leaking through the opening in the inner bottom surface (223) of the water tank (200) for the germicidal light (194) and the temperature sensor (193), the Peltier hole (225) and the wiring hole (226).

The boss (117c) may extend downward and be coupled to the lower frame (120). The lower frame (120) may include a corresponding boss (117e) that protrudes upward. The corresponding boss (117e) may include a hole into which the lower end of the boss (117c) may be inserted. Alternatively, the boss (117c) may be coupled to a corresponding groove formed in the lower frame (120), and the boss (117e) of the lower frame (120) may simply serve to prevent lateral displacement of the heat sink (160) and/or the fan housing (170).

The boss (117d) may be a bolt hole or a screw hole. The bolt or screw may be inserted through the boss (117d) and inserted through the hole (150a) provided in a pair of side plates (150) to be coupled to the heat sink (160). When the upper plate (140) is provided, a corresponding cutout, recess or opening (140b) may be provided so as not to obstruct the path to the heat sink (160). The bolt coupled to the heat sink (160) serves to maintain the heat sink (160) spaced apart from the center plate (130).

Referring to FIGS. 2A to 2B and FIG. 12A, a control unit (C) provided on a printed circuit board (195) may be electrically connected to and control a printed circuit board (114c) and/or a user interface (114), a sterilizing light (194), a proximity sensor (125), a water temperature sensor (193), a weight sensor (124), a battery (196), a motor provided in a fan (180), a Peltier device (191b), and a pump (192). The control unit (C) may be electrically connected to an AC/DC converter that converts alternating current supplied to a socket (118) into direct current, a memory or storage device that stores data (e.g., proximity sensor (125) data and time), and a communication module. If various other sensors (e.g., a temperature sensor or a gyro sensor) are provided on the base (100), the other sensors may also be electrically connected to and controlled by the control unit (C). The control unit (C) can be connected to an optional global positioning system (GPS) to track the location of the water dispenser.

The communication module may include a WiFi module and/or a Bluetooth module, so that the user can control the control unit (C) through a mobile application installed on the mobile device. The communication module may communicate with the communication module of the printed circuit board (114c) to control the operation of the light emitting device (114e) and the button (114b) on the user interface (114). The communication module may retrieve information (e.g., GPS data) from the user's mobile device or smart toy and compare it with the data of the waterer (e.g., GPS data detected by GPS). The communication module may interact with or communicate with a separate server that receives data from the user's mobile device and/or a smart pet device (e.g., a pet pendant, an automatic pet treadmill, an automatic pet house, a robot vacuum cleaner, etc.).

When the water temperature sensor (193) detects a temperature outside the preset first water temperature range, the Peltier device (191b) can be controlled by the control unit (C) to heat or cool the water in the water tank (200). Since animals tend to prefer water between 10 and 20 degrees Celsius, the first water temperature range can be between 10 and 20 degrees Celsius. Additionally, the user can set the temperature range of the water in the water tank (200) through the user interface (114) or a mobile application.

The proximity sensor (125) can detect the location of the pet within a preset distance range. When the control unit (C) determines that the pet is within the preset distance range, the control unit (C) can operate the pump (192) to supply water to the upper plate (420), and the water falling from the outer edge (420a) of the upper plate (420) can implement flowing water preferred by animals. The pet can be interested in the waterer and drink the falling water.

Additionally, the control unit (C) may put the pump (192) on standby only when the proximity sensor (125) detects that the pet is continuously in proximity to the waterer. The proximity sensor (125) may first detect that the pet is within a preset distance range, and the control unit (C) may control the pump (192) to be in a “standby state” in which the pump (192) is ready to operate quickly if there is an additional command or signal from the control unit. When the proximity sensor (125) detects that the pet has moved closer to the waterer, the control unit (C) may operate the pump (192).

As another example, the control unit (C) may operate the pump (192) only when the pet approaches the waterer at a preset speed. The control unit (C) may calculate the speed of the approaching pet based on continuous or periodic measurements from the proximity sensor (125) and the internal timer. If the pet is detected to be within a preset second distance range that is smaller than or closer to the preset first distance range, the control unit (C) may determine that the pet is drinking water from the waterer, and the memory may store the consumption data.

The control unit (C) can control the pumping capacity or pumping rate of the pump (192). The control unit (C) can increase the pumping capacity when it detects and determines that multiple pets are approaching or near the waterer through multiple proximity sensors (125).

The memory may be provided on the printed circuit board (195) and may store data on how often or at what time the pet drinks water from the waterer. The control unit (C) may predict when the pet will approach the waterer based on the data stored in the memory, and operate the pump (192) and the Peltier device (191b) based on this. For example, if the data stored in the memory indicates that the pet drinks water from the waterer at noon every day, the control unit (C) may operate the Peltier device (191b) before noon to cool or heat the water, and operate the pump (192) at noon or control the pump (192) to be in a standby state.

As another example, if the data stored in the memory indicates that the pet drinks from the waterer every two hours, the control unit (C) can operate the Peltier device (191b) and/or control the pump (192) to be in an operating or standby state after two hours when the proximity sensor (125) detects that the pet is no longer within the second distance range from the waterer.

The control unit (C) can interact with a mobile application installed on a mobile device (or computer), and can also interact with a pet pendant or tag equipped with a GPS tracker. Based on the GPS sensor of the pet pendant and the user's mobile device, the control unit (C) can determine whether the pet is home alone, outside with the user, or at home. The home location can be determined based on GPS data input by the user through the mobile application or detected by the GPS of the waterer.

If the GPS data indicates that the pet and owner are away from home, the controller (C) may activate the Peltier device (191b) to cool or heat the water so that it is at a comfortable temperature when the pet returns home. The controller (C) may additionally activate the germicidal light (194) when the owner and pet are away from home, as there is no risk of exposure to UV radiation.

If the GPS sensor indicates that the pet is home alone, the control unit (C) activates the pump (192) and/or the light source (114e) to guide the pet to the waterer and provide regular water intake. The user can also control the waterer via a mobile application and turn it on or off using the mobile application. The user can also select the water temperature to be maintained and control the pump (192).

Referring to FIGS. 2A to 2B and FIG. 12, the status of the battery (196) can be provided to the user through a mobile application, and the control unit (C) can control the electronic device based on the charge level of the battery (196). In addition, the control unit (C) can control the electronic device based on the water level detected by the weight sensor (124).

For example, if the battery (196) is below a preset first charge level (e.g., 15%) and external power is not supplied to the socket (118), the device may enter a power-saving mode. The user may configure desired settings during the power-saving mode via the user interface (114), or a default power-saving mode may be implemented if no settings are entered. In the power-saving mode, the water dispenser may have its temperature control changed. For example, the control unit (C) may stop the operation of the Peltier device (191b), the proximity sensor (125), the temperature sensor (193), and the germicidal light (194), but may continue to operate the pump (192) and the user interface (114).

Alternatively or in addition, the control unit (C) may stop the operation of the fan (180) if the temperature of the heat sink (160) and/or the Peltier device (191b) detected by the element temperature sensor is lower than a preset temperature.

Additionally, the control unit (C) may implement a power saving mode when the water level detected by the weight sensor (124) is below a preset minimum water level even if the charge level of the battery (196) exceeds 15%. Alternatively or additionally, the control unit (C) may stop the operation of the pump (192) when the water level detected by the weight sensor (124) is below the preset minimum water level. The control unit (C) may continue to operate the weight sensor (124) and operate the pump (192) when the water level detected by the weight sensor (124) is greater than the preset minimum water level.

Alternatively or additionally, the control unit (C) may cause the electronic devices to operate preferentially during the power-saving mode. The control unit (C) may change the priorities of the electronic devices based on data detected by the weight sensor (124), the water temperature sensor (193), and the proximity sensor (125). For example, the control unit (C) may continue to operate the water temperature sensor (193) during the power-saving mode, but may prioritize the operation of the Peltier device (191b) based on a temperature detected outside a preset second water temperature range (e.g., 2 to 30 degrees Celsius) that is greater than the preset first water temperature range. In addition, the user may preset the priorities of the electronic devices to be implemented during the power-saving mode through the user interface (114).

During the power saving mode, the control unit (C) can control the communication module to continuously check for a signal (e.g., a wireless signal via WiFi or a service set identifier or SSID signal) or an electrical connection of a charging pad capable of wirelessly charging the battery (196). If a signal indicating that the battery (196) is within a range for wireless charging is received from the charging pad, the normal mode or operation can be implemented, and the power saving mode can be terminated. The normal mode may not prevent or reduce the operation of the Peltier device (191b), etc. If no signal is received from the charging pad, the user can override the power saving mode through the mobile application to implement the normal mode.

The control unit (C) can interact with the socket (118) to continuously check whether external power is being applied to the socket (118). If the control unit (C) determines that external power is being applied to the socket (118), the power saving mode can be stopped and the normal mode can be implemented.

If the battery (195) is below a preset second charge level (e.g., 3%) that is less than the first charge level, the waterer may enter a power saving mode or sleep mode in which the remaining electronic devices that are still operating (e.g., the light emitting device (114e) and/or the user interface (114), the element temperature sensor, the weight sensor (124), the pump (192), and the fan (180)) are stopped from operating. If the user is unable to charge the battery (195) by connecting the socket (118) to an external power source or wirelessly via a charging pad, the user may lift the inclined wall (323) of the filter guide (320) to separate the water supply assembly (400) and the filter assembly (300) from the tank (200), allowing the pet to drink water directly from the tank (200). The user may also detach the secondary filter (240) from the tank (200) to avoid interfering with the pet's ability to drink water, but may retain the inner bottom cover (250) of the tank (200) to protect the pump (192) and the sterilizing light (194).

The first embodiment described above is illustrated with a fan (180) and a heat sink (160) provided in the center of the base (100) and a Peltier device (191b) provided on the side, but is not necessarily limited thereto.

Referring to FIGS. 13A and 13B, a pet waterer according to a second embodiment is described. The second embodiment may be substantially the same as the first embodiment and its alternative embodiments described with reference to FIGS. 1 to 12, except for the arrangement of the fan (180'), the heat sink (160'), the Peltier device (191b'), and the metal (191a').

In a second embodiment, the fan (180') and the heat sink (160') may be smaller in size and may be positioned on the side of the base (100). The fan (180') may be positioned below the heat sink (160'), the heat sink (160') may be positioned below the Peltier device (191b'), and the Peltier device (191b') may be positioned below the outer bottom surface (221). The intake grill (121') may be positioned on the lower frame (120) below the fan (180'), and the exhaust grill (115') may be positioned at the center or opposite side of the lower frame (120).

In a second embodiment, the bottom cover (250) may be made of metal (e.g., stainless steel), and the rib (255) may be omitted, so that the bottom cover (250) functions as an additional heat transfer plate by directly contacting the metal (191a') and helps heat or cool the liquid within the tank (200). Alternatively, the bottom cover (250) may include the rib (255), or the outer bottom surface (221) of the tank (200) may include a rib to separate the bottom cover (250) from the outer bottom surface (221) of the tank (200).

Referring to FIGS. 14A to 14B, a water purifier according to a third embodiment of the present invention will be described. The third embodiment may be substantially the same as the first embodiment and its alternative embodiments described with reference to FIGS. 1 to 12, except for the arrangement of the fan (180"), the heat sink (160"), the Peltier device (191b"), and the metal (191a").

The fan (180") may be a sirocco fan provided on the side rather than the lower side of the heat sink (160"). The intake grille (121") may be provided on the lower frame (120) below the fan (180") (or the intake grille (121") may be provided on the outer wall of the lower frame (120) adjacent to the fan), and an exhaust grille (115") through which air may be exhausted may be provided on the opposite side of the intake grille (121") of the lower frame. The heat sink (160") and the fan (180") may be arranged between the intake grille (121") and the exhaust grille (115").

A fan (180") can blow air laterally through the heat sink's (160") fins to cool a Peltier device (191b") provided on the heat sink's (160") fins and below the metal (191a").

Although the preferred embodiments of the present invention have been illustrated and described above, the present invention is not limited to the specific embodiments described above, and various modifications may be made by a person skilled in the art without departing from the gist of the present invention as claimed in the claims. Furthermore, such modifications should not be understood individually from the technical idea or prospect of the present invention.

100: Base 200: Tank
300: Filter assembly 400: Water supply assembly

Claims (15)

A tank for storing water, with an opening formed at the top;
A pump that discharges water stored in the above tank upward;
A filter assembly supported on the opening of the above tank; and
It includes a water supply plate covering the above opening and having a water supply hole through which water discharged from the pump flows,
The above filter assembly
It includes a first filter that primarily filters water falling from the water supply plate, and a second filter that is arranged vertically with the first filter and secondarily filters water passing through the first filter.
A pet waterer, wherein the first filter comprises at least one baffle dividing the filter surface of the second filter.
In the first paragraph,
A pet waterer characterized in that the filter assembly is disposed at the bottom of the water supply plate and includes a filter guide in which the second filter for secondary filtering of the water is formed.
In the second paragraph,
A pet waterer characterized in that the first filter is vertically overlapped and combined on the second filter of the filter guide.
In the third paragraph,
A pet waterer characterized in that the filter guide provides a discharge path for discharging water introduced into the filter assembly into the tank through the first filter and the second filter.
In paragraph 4,
A pet waterer characterized in that the filter guide includes a guide surface that guides water falling from the water supply plate to the first filter.
In paragraph 5,
The above guide surface is sunken downward and includes a filter recess in which the second filter is implemented,
A pet waterer characterized in that the filter recessed portion includes a side wall protruding downward from the lower side of the guide surface and a bottom surface extending parallel to the guide surface by bending with the side wall and on which the second filter is implemented.
In paragraph 6,
A pet waterer characterized in that a plurality of holes forming the second filter are formed on the bottom surface.
In paragraph 7,
A pet waterer, characterized in that the first filter is disposed inside the filter recess and is capable of being combined or separated from the filter recess.
In paragraph 8,
The above second filter has the above holes arranged in a plane on the bottom surface,
A pet waterer, characterized in that the first filter is arranged to overlap in a direction perpendicular to the bottom surface.
In paragraph 9,
A pet waterer, characterized in that the baffles of the first filter are arranged radially.
In paragraph 9,
A pet waterer characterized in that the filter areas of the first filter and the second filter are the same.
In paragraph 9,
A pet waterer, characterized in that the first filter or the second filter is provided with a filtering material.
In paragraph 12,
A pet waterer characterized in that a handle for replacing the first filter is formed when the first filter is provided with the filtering material.
In paragraph 13,
A pet waterer characterized in that the handle is formed to be exposed in front of the first filter.
In paragraph 6,
A pet waterer characterized in that the guide surface has a slope to guide the flow of water to the filter recess.