CN221750337U - Cleaning Equipment - Google Patents

Abstract

The application discloses cleaning equipment, and belongs to the field of cleaning equipment. The cleaning device includes: the air conditioner comprises an inner container, an air exhaust assembly, an air duct, a valve, a fan and a heater; the inner container forms a cleaning chamber; the exhaust assembly is arranged on the inner container and is configured to exhaust the gas in the cleaning cavity when the exhaust assembly is opened; the air duct is arranged on the inner container and is provided with an air inlet, an air supplementing inlet and an air outlet, the air inlet and the air outlet are both communicated with the cleaning cavity, and the air supplementing inlet is communicated with the outside; the air door of the valve is pivotally arranged on the air duct between a first position and a second position, the air door seals the air supplementing inlet at the first position, and the air door seals the air inlet at the second position; the fan is arranged in the air duct, the air inlet and the air supplementing inlet are both communicated with the inlet of the fan, and the outlet of the fan is communicated with the air outlet; configured to heat gas flowing through the air duct when turned on. The application improves the utilization rate of hot air heat energy, reduces the energy consumption of the hot air drying working mode of the cleaning equipment, and is beneficial to quick drying.

Description

Cleaning Equipment

Technical Field

The present application belongs to the technical field of household appliances, and in particular, relates to a cleaning device.

Background Art

The drying methods of dishwashers and other cleaning equipment include: condensation drying, hot air drying, adsorption drying and door-opening quick drying. Among them, condensation drying has problems such as poor drying effect and long drying time, adsorption drying has problems such as high cost and odor after long-term storage, and door-opening quick drying has problems such as insects easily entering and failure to automatically close the door in time in humid areas. Therefore, considering the comprehensive cost and drying effect, hot air drying has become the method chosen by most manufacturers.

At present, most cleaning equipment such as dishwashers rely on an external circulation system for hot air drying. The working process is: outside air is sucked in and heated by a heater, and the heated outside air is introduced into the cleaning chamber to perform hot air drying on the items in the cleaning chamber. During the hot air drying process, outside air is sucked into the cleaning chamber to form a positive pressure in the cleaning chamber. In order to maintain the normal pressure of the cleaning chamber, the exhaust component of the cleaning equipment is usually turned on to reduce the water vapor leakage problem caused by the positive pressure of the cleaning chamber.

In the above-mentioned external circulation drying mode, the opening of the exhaust component will cause the heat energy of the heated air to be discharged from the cleaning chamber without being fully utilized, resulting in energy waste. In the related art, there is a cleaning device that uses an internal circulation drying mode for drying, but the working mode is single and there are still problems of low drying efficiency and poor drying effect, which needs to be improved.

Utility Model Content

The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a cleaning device, which improves the utilization rate of hot air heat energy, reduces the energy consumption of the hot air drying working mode of the cleaning device, and facilitates rapid drying, compared with the cleaning device that performs hot air drying through external circulation.

In a first aspect, the present application provides a cleaning device, comprising:

The liner forms a cleaning chamber;

an exhaust assembly, mounted on the inner tank, and configured to exhaust the gas in the cleaning chamber when opened;

An air duct is installed in the inner tank and has an air inlet, a supplementary air inlet and an air outlet, wherein the air inlet and the air outlet are both connected to the cleaning chamber, and the supplementary air inlet is connected to the outside;

a valve, wherein a damper of the valve is pivotally mounted on the air duct between a first position and a second position, wherein the damper closes the air supply inlet in the first position and closes the air inlet in the second position;

A fan is installed in the air duct, and the air inlet and the air supply inlet are both connected to the inlet of the fan, and the outlet of the fan is connected to the air outlet;

A heater is configured to heat the gas flowing through the air duct when the heater is turned on.

According to the cleaning device provided by the embodiment of the present application, by setting an air duct and setting a valve at the air supply inlet of the air duct, multiple working modes of the cleaning device such as internal circulation, external circulation and internal and external circulation mixture can be realized. On the one hand, when the valve is in the first position, the air supply inlet is closed, and the cleaning chamber is disconnected from the outside world. The cleaning chamber is in the internal circulation working mode. The gas in the cleaning chamber is sucked into the air duct from the air inlet of the air duct by the fan, and the hot air heated by the heater enters the cleaning chamber from the air outlet of the air duct. The dry gas in the cleaning chamber is circulated and heated by the heater to realize hot air drying of the dishes in the cleaning chamber. Compared with the cleaning device that performs hot air drying through external circulation, the internal circulation drying working mode improves The utilization rate of hot air thermal energy reduces the energy consumption of the hot air drying working mode of the cleaning equipment, achieving energy saving; at the same time, in the cleaning stage, the sealing of the air supply inlet by the valve can reduce the leakage of water vapor in the cleaning chamber through the air duct, thereby reducing the condensation water between the inner tank and the outer shell of the cleaning equipment, and reducing corrosion pollution; on the other hand, when the damper is in the second position, the air supply inlet is opened, the air inlet is closed, and the connection between the cleaning chamber and the outside world forms an external circulation. At this time, a complete external circulation is carried out, and the air supply inlet introduces outside air into the cleaning chamber to provide sufficient air supplement for the cleaning chamber, which helps the exhaust component to quickly discharge the evaporated water vapor, achieve the effect of rapid moisture removal, and help quick drying.

According to one embodiment of the present application, the cleaning device has an internal circulation drying working mode, in which the fan and the heater are working, the exhaust assembly is stopped, and the damper is located at the first position;

And/or, the cleaning device has an external circulation drying working mode, in which the fan, the heater and the exhaust assembly are all working, and the damper is located at the second position;

And/or, the cleaning device has a mixed working mode; in the mixed working mode, the fan, the heater and the exhaust assembly are all working, the damper is located between the first position and the second position, and the air flow rate sucked in by the air inlet is less than or equal to the air flow rate sucked in by the air supply inlet;

And/or, the cleaning device has a mixed dehumidification working mode; in the mixed dehumidification working mode, the fan and the exhaust assembly are both working, and the heater is stopped.

According to an embodiment of the present application, when the exhaust assembly is in operation, the exhaust volume of the exhaust assembly is not less than the volume of gas entering the cleaning chamber from the outside.

According to an embodiment of the present application, when the exhaust assembly and the fan are in operation, the exhaust volume of the exhaust assembly is not less than the volume of gas entering the cleaning chamber from the outside.

According to one embodiment of the present application, the air duct comprises:

An upper air duct, wherein the upper air duct is provided with the air inlet and the supplementary air inlet, the fan and the valve are installed in the upper air duct, and at least a part of the upper air duct is installed above the inner tank;

A downwind duct, the inlet of which is connected to the outlet of the upwind duct, and the downwind duct is provided with the air outlet.

According to one embodiment of the present application, the projection of the air supply inlet on the top wall of the inner liner is located between the projection of the fan on the top wall of the inner liner and the projection of the air inlet on the top wall of the inner liner.

According to one embodiment of the present application, the air inlet is arranged downward, and the air supply inlet is arranged upward.

According to one embodiment of the present application, the upper air duct is provided with an inclined first support surface on the bottom wall opposite to the supplementary air inlet, and a second support surface is provided on at least a portion of the periphery of the supplementary air inlet. In the second position, the lower surface of the damper is in contact with the first support surface and the second support surface.

According to one embodiment of the present application, the fan includes: an upper shell, an impeller and a motor assembly, the motor assembly is dynamically coupled to the impeller, the upper shell is connected to the upper air duct to form a accommodating cavity, and the impeller is installed in the accommodating cavity.

According to one embodiment of the present application, it also includes: a side panel, the heater is installed in the area of the air duct located on the side of the inner tank, the side panel is installed on the side wall of the inner tank, and is covered outside the lower air duct, and the inner side surface of the side panel is separated from the lower air duct.

According to one embodiment of the present application, the power of the heater is P, satisfying: P≤500W.

Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

FIG1 is a schematic diagram of a cleaning device according to an embodiment of the present invention;

FIG2 is a second schematic diagram of the structure of the cleaning device provided in an embodiment of the present application;

FIG3 is one of the structural schematic diagrams of the internal circulation component provided in an embodiment of the present application;

FIG4 is a second schematic diagram of the structure of the internal circulation component provided in an embodiment of the present application;

FIG5 is a schematic diagram of a partial structure of an internal circulation component provided in an embodiment of the present application;

FIG6 is a third structural schematic diagram of an internal circulation component provided in an embodiment of the present application;

Fig. 7 is one of the cross-sectional views at N-N in Fig. 6;

Fig. 8 is a second cross-sectional view of the N-N position in Fig. 6;

FIG9 is a fourth schematic diagram of the structure of the cleaning device provided in an embodiment of the present application;

FIG10 is a fifth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

FIG11 is a partial enlarged view of point B in FIG10;

FIG12 is a sixth structural schematic diagram of a cleaning device provided in an embodiment of the present application;

FIG. 13 is a seventh schematic diagram of the structure of the cleaning device provided in an embodiment of the present application.

Reference numerals:

Inner container 1, cleaning chamber 11, first side surface 111, second side surface 112; top wall 12, side wall 13, back plate 14, front opening 15, bottom wall 16;

Internal circulation component 2, air duct 21, air inlet 211, air outlet 212, air supply branch 213, air supply inlet 2131, second support surface 21311;

Upper air duct 214, first support surface 2144; lower air duct 215, grille 2156;

Fan 22, upper shell 221, impeller 222; heater 23, water retaining cover 24, sealing device 25, valve 26, damper 261; driving mechanism 27; transmission mechanism 28;

Side panel 3, exhaust assembly 4, air inlet 41, bowl basket 5.

DETAILED DESCRIPTION

The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

The following describes a cleaning device according to an embodiment of the present application with reference to FIGS. 1 to 13 . The cleaning device of the present application can clean and dry a variety of items such as tableware or clothing.

The cleaning device may be a dishwasher, a clothes dryer, a shoe washer, or other device with hot air drying function. In the embodiment of the present application, the cleaning device includes a cleaning function and a hot air drying function. The cleaning mechanism in the cleaning function cleans the items in the cleaning chamber, and after the cleaning is completed, the hot air drying process begins. Drying the items in the cleaning chamber can reduce the growth of bacteria. For the sake of convenience, the present application takes a dishwasher as an example for elaboration.

As shown in FIG. 1 , FIG. 4 and FIG. 5 , the cleaning device of the embodiment of the present application includes: an inner tank 1 , an exhaust component 4 , an air duct 21 , a valve 26 , a fan 22 and a heater 23 .

The inner liner 1 forms a clean chamber 11; the exhaust assembly 4 is installed on the inner liner 1 and is configured to discharge the gas in the clean chamber 11 when it is turned on; the air duct 21 is installed on the inner liner 1, and the air duct 21 has an air inlet 211, a make-up air inlet 2131 and an air outlet 212, the air inlet 211 and the air outlet 212 are both connected to the clean chamber 11, and the make-up air inlet 2131 is connected to the outside; the damper 261 of the valve 26 is pivotally installed on the air duct 21 between a first position and a second position, in the first position the damper 261 closes the make-up air inlet 2131, and in the second position the damper 261 closes the air inlet 211; the fan 22 is installed on the air duct 21, and the air inlet 211 and the make-up air inlet 2131 are both connected to the inlet of the fan 22, and the outlet of the fan 22 is connected to the air outlet 212; the heater 23 is configured to heat the gas flowing through the air duct 21 when it is turned on.

As shown in Figure 1, the inner tank 1 includes a top wall 12, a bottom wall 16, a back plate 14, a side wall 13 and a front opening 15. The top wall 12, the bottom wall 16, the back plate 14 and the side wall 13 of the inner tank 1 enclose a cleaning chamber 11. The top wall 12 of the inner tank 1 is the top wall 12 of the cleaning chamber 11, the side wall 13 of the inner tank 1 is the side of the cleaning chamber 11, the back plate 14 of the inner tank 1 is the back of the cleaning chamber 11, and the bottom wall 16 of the inner tank 1 is the bottom surface of the cleaning chamber 11.

The cleaning device may also include a cover plate, which is pivotally connected to the inner liner 1 and can rotate relative to the inner liner 1 to open and close the front end opening 15 of the inner liner 1 to facilitate placing or removing items from the cleaning chamber 11. The cover plate and the top wall 12, bottom wall 16, back panel 14 and side wall 13 of the inner liner 1 enclose the cleaning chamber 11.

The cleaning chamber 11 is used for placing objects to be cleaned. The objects to be cleaned can be cleaned and dried in the cleaning chamber 11. The objects to be cleaned can be tableware such as bowls, chopsticks, plates and pots.

As shown in FIG. 1 , the cleaning chamber 11 may be provided with an item rack, which may include a bowl basket 5 , a chopstick rack, a cup rack and other supports. The item rack may fix and support tableware, and may also divide the cleaning chamber 11 into spaces, thereby increasing the space utilization of the cleaning chamber 11 .

The cleaning chamber 11 may also be provided with a spray arm, which is used to spray high-pressure water flow, and the high-pressure water flow can spray and flush the tableware in the cleaning chamber 11 to wash away the dirt attached to the tableware, thereby achieving the washing of the tableware. There may be multiple spray arms, and the multiple spray arms may be installed at different positions of the cleaning chamber 11 to spray the tableware in multiple directions, angles, and levels, thereby improving the cleaning effect of the tableware.

The air duct 21 can be used to realize the circulation of air in the cleaning chamber 11, for example, to realize the internal circulation, external circulation or the mixed internal and external circulation of air. The air duct 21 can be installed on the outside or inside of the inner tank 1, and the air duct 21 can be connected to the wall surface of the inner tank 1 by means of clamping, threading or welding.

The air duct 21 has an air inlet 211 and an air outlet 212 connected to the cleaning chamber 11. The gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21, forming an internal circulation. The hot air can dry the tableware and other items in the cleaning chamber 11.

The air supply inlet 2131 of the air duct 21 is connected to the outside, and the external gas is drawn into the air duct 21 by the fan 22. The external gas can enter the cleaning chamber 11 from the air outlet 212 of the air duct 21 after being heated by the heater 23, or it can directly enter the cleaning chamber 11 to balance the air pressure in the cleaning chamber 11 and reduce the vacuum degree in the cleaning chamber 11.

As shown in FIG. 1 , by providing the air inlet 211 , the air supply inlet 2131 and the air outlet 212 of the air duct 21 , external circulation and/or internal circulation of the cleaning chamber 11 can be realized to realize various working modes of the cleaning device.

When only the fan 22 is working, in order to maintain the pressure balance in the clean chamber 11, the fan 22 will absorb only the air in the clean chamber 11 as much as possible to achieve basic internal circulation. At this time, the air volume of the internal circulation is much larger than the air volume of the external circulation, thereby achieving the effect of quickly increasing the temperature and humidity in the clean chamber 11; when the fan 22 and the exhaust component 4 are working at the same time, the exhaust component 4 extracts and discharges the air in the clean chamber 11. At this time, the fan 22 will mainly introduce outside air, and a small amount of air in the cavity is sucked in for circulation. At this time, internal and external circulation are carried out simultaneously, which can effectively improve the rapid dehumidification requirements in the dehumidification stage.

In the related art, the single internal circulation scheme helps to circulate and heat the gas to be dried in the cleaning chamber 11 to reach a suitable temperature, but the single internal circulation scheme also requires the exhaust component 4 to gradually discharge the evaporated water vapor. During the discharge stage, there is a lack of introduction of external gas, and the exhaust component 4 will gradually draw the cleaning chamber 11 into a negative pressure. The negative pressure causes the exhaust rate to gradually decrease, resulting in the overall dehumidification rate of the cleaning equipment not being well improved.

The present application sets up an air supply inlet 2131 of the air duct 21 connected to the outside, so that the air pressure balance in the cleaning chamber 11 can be maintained through the air supply inlet 2131 when the exhaust component 4 is working, and the vacuum degree in the cleaning chamber 11 can be reduced, so that a high exhaust rate can be maintained, and the water vapor in the cleaning chamber 11 can be quickly discharged, thereby improving the overall dehumidification rate and drying rate of the cleaning equipment, and further reducing the energy consumption of hot air drying.

In this embodiment, the air inlet 211, the air supply inlet 2131 and the air outlet 212 can be located on the same wall of the inner liner 1, or on different walls of the inner liner 1, and are set according to the specific usage scenario. The number and ventilation area of the air inlet 211, the air supply inlet 2131 and the air outlet 212 of the air duct 21 can be set according to the specific usage scenario.

The inlet of the fan 22 is communicated with the air inlet 211 of the air duct 21 , and the outlet of the fan 22 is communicated with the air outlet 212 of the air duct 21 , so that the gas in the air duct 21 is driven by the fan 22 .

The fan 22 drives the gas in the air duct 21 to flow from the air inlet 211 of the air duct 21 to the air outlet 212 of the air duct 21, that is, the gas in the cleaning chamber 11 is drawn into the air duct 21 by the fan 22, and after being heated by the heater 23, it is driven by the fan 22 to be discharged from the air duct 21 into the cleaning chamber 11, forming an internal circulation.

The fan 22 is installed in the air duct 21, and the fan 22 can be connected to the air duct 21 by means of snap connection, thread connection, plug-in, etc. The fan 22 can be installed at the air inlet 211, the air outlet 212, or between the air inlet 211 and the air outlet 212 of the air duct 21. The fan 22 can be a device capable of driving gas flow, such as a centrifugal air supply device, an exhaust fan, or a ventilation air supply device.

The fan 22 is connected to the air inlet 211 and the air supply inlet 2131 of the air duct 21, so that when the fan 22 is turned on, the gas in the cleaning chamber 11 and/or the external gas is drawn into the air duct 21, and when the fan 22 is driven, the gas is discharged from the outlet of the fan 22 into the air outlet 212 of the air duct 21 and then discharged into the cleaning chamber 11.

In the drying working mode of the cleaning device, the dry air in the cleaning chamber 11 is circulated and heated by the heater 23 to reach a suitable temperature and humidity, so as to perform hot air drying on the tableware in the cleaning chamber 11 .

The heater 23 can heat the gas flowing through the air duct 21 by electromagnetic heating, infrared heating or resistance heating. The heater 23 using resistance heating can be a PTC (Positive Temperature Coefficient) heating device, a resistance wire heating device or a resistance coil heating device.

When turned on, the heater 23 heats the gas flowing through the air duct 21. The heater 23 can be installed in the air duct 21 to perform direct contact heat exchange with the gas flowing through the air duct 21; the heater 23 can also be installed outside the air duct 21 to indirectly exchange heat with the gas flowing through the air duct 21 by heating the pipe wall of the air duct 21.

In this embodiment, the fan 22 and the heater 23 constitute an internal circulation component 2 of the cleaning device, which is used to circulate and heat the gas in the cleaning chamber 11 and provide the heat required for drying the dishes and the air flow speed required for convection.

The exhaust component 4 is a related component capable of creating normal pressure or negative pressure in the cleaning chamber 11. The exhaust component 4 can be a fluid machine with exhaust function such as an exhaust fan 22 or an air pump. When the cleaning chamber 11 is being dried with hot air, the exhaust component 4 is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 11 together with the gas to reduce the relative humidity of the air in the cleaning chamber 11, which is conducive to the evaporation of more residual water.

Among them, the air outlet 212 of the air duct 21 is used to discharge the gas heated by the heater 23 into the cleaning chamber 11, and the air inlet 41 of the exhaust component 4 is connected to the cleaning chamber 11. The air inlet 41 of the exhaust component 4 is used to discharge the water vapor that has evaporated or volatilized in the cleaning chamber 11 together with the gas.

The gas heated by the heater 23 is discharged into the cleaning chamber 11 from the air outlet 212 of the air duct 21, and at least part of the hot gas is discharged from the cleaning chamber 11 along with the water vapor from the air inlet 41 of the exhaust component 4, and the flow path of at least part of the hot gas is from the air outlet 212 of the air duct 21 to the air inlet 41 of the exhaust component 4.

Among them, the internal circulation component 2 and the exhaust component 4 can be operated in a jointly opened or individually opened manner.

When only the internal circulation component 2 is running, the air in the cleaning chamber 11 is circulated and heated, and the heat is evenly distributed. The colder areas in the cleaning chamber 11 can evaporate and dry faster through heat transfer and convection heat exchange, which is beneficial to the drying of the entire cleaning chamber 11 and reduces drying dead corners.

When only the exhaust assembly 4 is working, due to the lack of external air supply, the cleaning chamber 11 is evacuated into a negative pressure state by the exhaust assembly 4, and the negative pressure environment is also helpful to improve the drying rate.

When the internal circulation component 2 and the exhaust component 4 work simultaneously, the fan 22 can circulate the air in the cleaning chamber 11, so that the temperature and humidity in the cleaning chamber 11 are evenly distributed, further improving the effect of uniform drying of the entire chamber.

Among them, the valve 26 can be an active valve 26 or a passive valve 26. In the active valve 26, the valve 26 can drive the damper 261 to rotate between the first position and the second position with the help of external energy. In the passive valve 26, the valve 26 can use its own weight and/or pressure difference to drive the damper 261 to rotate between the first position and the second position.

The damper 261 of the valve 26 is used to control the connection or disconnection between the cleaning chamber 11 and the outside world, and to control the connection or disconnection between the air inlet 211 and the cleaning chamber 11. As shown in Figure 7, when the damper 261 is in the first position, the air supply inlet 2131 is closed, the cleaning chamber 11 is disconnected from the outside world, and the cleaning chamber 11 performs an internal circulation working mode; as shown in Figure 8, when the damper 261 is in the second position, the air supply inlet 2131 is opened, the air inlet 211 is blocked, the cleaning chamber 11 is connected with the outside world, and the cleaning chamber 11 can perform a pure external circulation working mode; when the damper 261 is between the first position and the second position, the air supply inlet 2131 is opened, the air inlet 211 is opened, the cleaning chamber 11 is connected with the outside world, and the cleaning chamber 11 can perform a mixed working mode of internal and external circulation.

The valve 26 can be opened and closed according to the pressure difference between the cleaning chamber 11 and the outside and/or the working mode of the cleaning equipment. The valve 26 can be a fluid valve such as a gate valve, a stop valve or a butterfly valve.

According to the cleaning device provided by the embodiment of the present application, by setting the air duct 21 and setting the valve 26 at the air supply inlet 2131 of the air duct 21, multiple working modes such as internal circulation, external circulation and internal and external circulation mixed can be realized for the cleaning device. On the one hand, when the valve 26 is in the first position, the air supply inlet 2131 is closed, the cleaning chamber 11 is disconnected from the outside, and the cleaning chamber 11 is in the internal circulation working mode. The gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21. The dry gas in the cleaning chamber 11 is circulated and heated by the heater 23 to realize hot air drying of the tableware in the cleaning chamber 11. Compared with the cleaning equipment that performs hot air drying through external circulation, the internal circulation drying The working mode improves the utilization rate of hot air thermal energy, reduces the energy consumption of the hot air drying working mode of the cleaning equipment, and achieves energy saving; at the same time, in the cleaning stage, the sealing of the valve 26 to the air supply inlet 2131 can reduce the leakage of water vapor in the cleaning chamber 11 through the air duct 21 to the outside, thereby reducing the condensation water between the inner tank 1 and the outer shell of the cleaning equipment, and reducing corrosion pollution; on the other hand, when the damper 261 is in the second position, the air supply inlet 2131 is opened, the air inlet 211 is closed, and the connection between the cleaning chamber 11 and the outside forms an external circulation. At this time, a complete external circulation is carried out, and the air supply inlet 2131 introduces outside air into the cleaning chamber 11 to provide sufficient air supplement for the cleaning chamber 11, which helps the exhaust component to quickly discharge the evaporated water vapor, achieve the effect of rapid moisture removal, and help quick drying.

In some embodiments, as shown in Figures 1 and 2, the air duct 21 includes an air supply branch 213, the air supply inlet 2131 of the air supply branch 213 is connected to the outside, and the air supply outlet of the air supply branch 213 is connected to the cleaning chamber. When the exhaust component and the fan 22 are working, the exhaust volume of the exhaust component 4 is not less than the air supply volume of the air supply branch.

Among them, the air duct 21 includes two branches of internal circulation and external circulation. The air inlet 2131 of the air supply branch 213 is connected with the outside, and the air outlet of the air supply branch 213 is connected with the cleaning chamber. The setting of the air supply branch 213 forms an external circulation branch of the cleaning chamber; the branch with the air inlet 211 and the air outlet 212 connected with the cleaning chamber belongs to the internal circulation branch. As shown in Figure 3, the hollow arrow represents the external circulation, and the solid arrow represents the internal circulation.

By providing the air supply branch 213, external circulation and/or internal circulation of the cleaning chamber can be realized, so as to realize various working modes of the cleaning equipment.

In some embodiments, the valve 26 may be an active valve 26, and the valve 26 has a driving mechanism 27. The valve 26 is opened or closed by an external energy source of the driving mechanism 27.

In this embodiment, as shown in FIG. 3 , the valve 26 includes: a damper 261 and a drive mechanism 27 . The damper 261 is pivotally mounted on the air duct 21 between a first position and a second position; and the drive mechanism 27 is power-coupled with the damper 261 .

The driving mechanism 27 is used to drive the damper 261 to rotate. The driving mechanism 27 has various types, and a suitable driving mechanism 27 can be selected according to actual conditions.

For example, the driving mechanism 27 can be a driving device such as a wax motor or a stepper motor, which can be connected to the damper 261 through a motor shaft, and the damper 261 can be driven to rotate by the rotation of the motor; or, the driving mechanism 27 can be a pneumatic drive: the pneumatic driving mechanism 27 uses the thrust or suction generated by the air pressure difference to rotate the damper 261; or, the driving mechanism 27 can be a hydraulic drive, which generates a driving force through hydraulic components such as hydraulic cylinders and hydraulic motors to rotate the damper 261.

The damper 261 may be a baffle with an adjustable opening angle, and the air flow rate can be controlled by adjusting the opening angle of the baffle.

The damper 261 rotates between the first position and the second position to open or close the supplementary air inlet 2131 and the air inlet 211 , and the area of the damper 261 is not less than the ventilation area of the supplementary air inlet 2131 and the air inlet 211 .

By providing an active valve 26 with a driving device, the damper 261 can be controlled to rotate between the first position and the second position as needed to meet various needs. At the same time, the active valve 26 can also be automatically controlled through components such as sensors to improve the intelligence of the cleaning equipment.

In some embodiments, as shown in FIG. 3 , the valve 26 has a transmission mechanism 28 , the input end of the transmission mechanism 28 is dynamically coupled to the output end of the drive mechanism 27 ; the valve 26 is dynamically coupled to the output end of the transmission mechanism 28 .

In some embodiments, as shown in FIG. 6 , the valve 26 is pivotally mounted on the upper air duct 214 , the bracket is pivotally connected to the valve 26 , and the rotation axis between the bracket and the valve 26 is parallel and spaced apart from the rotation axis between the valve 26 and the upper air duct 214 .

Among them, the slider, the bracket and the valve 26 form a crank slider mechanism, and the driving mechanism 27 drives the valve 26 to rotate by driving the slider to translate in the upper air duct 214, so that the valve 26 rotates between the positions of the make-up air inlet 2131 or the air inlet 211, so that the make-up air inlet 2131 and the air inlet 211 can be selectively closed.

In some embodiments, as shown in FIG. 7 , the valve 26 includes: a damper 261 , a valve shaft and a pull rod,

The damper 261 can selectively close the air supply inlet 2131 and the air inlet 211; the valve shaft is connected to the damper 261 and is pivotally mounted on the upper air duct 214; the pull rod is connected to the damper 261, and the bracket is pivotally connected to the pull rod.

The damper 261 may be a baffle with an adjustable opening angle, and the air flow rate is controlled by adjusting the opening angle of the baffle. By setting the damper 261, the air supply inlet 2131 or the air inlet 211 may be closed.

The area of the damper 261 is not less than the ventilation area of the air supply inlet 2131 and the air inlet 211 .

The valve shaft serves as a pivot shaft, and the damper 261 is pivotally connected to the upper air duct 214 via the valve shaft.

Both ends of the valve shaft can be pivotally connected to the upper air duct 214, and/or, the portion of the valve shaft between the two ends can be pivotally connected to the upper air duct 214, which can be specifically set according to the installation scenario of the air duct 21 assembly.

The pull rod is used to connect the damper 261 and the bracket, and the driving force of the driving mechanism 27 is transmitted to the damper 261 along the slider, the bracket, the pull rod and the valve shaft in sequence.

In some embodiments, as shown in FIG. 3 , the air duct 21 includes an upper air duct 214 and a lower air duct 215 .

The upper air duct 214 is provided with an air inlet 211 and a supplementary air inlet 2131, and the fan 22 and the valve 26 are installed in the upper air duct 214, and at least part of the upper air duct 214 is installed above the inner tank 1; the inlet of the lower air duct 215 is connected to the outlet of the upper air duct 214, and the lower air duct 215 is provided with an air outlet 212.

The lengths of the upper air duct 214 and the lower air duct 215 can be set according to the height of the cleaning equipment to accommodate cleaning equipment of different heights.

Among them, the upper air duct 214 can be entirely arranged above the inner liner 1, and the inlet of the lower air duct 215 extends to the top of the inner liner 1 and is connected to the outlet of the upper air duct 214; or, part of the upper air duct 214 can be arranged above the inner liner 1, and part of it is bent and extended to the side wall 13 of the inner liner 1, and the lower air duct 215 is arranged on the side wall 13 of the inner liner 1; or, both the upper air duct 214 and the lower air duct 215 are arranged above the inner liner 1.

In some embodiments, part of the upper air duct 214 can be arranged above the inner liner 1, the air inlet 211 and the air supply inlet 2131 are arranged in the part of the upper air duct 214 located above the inner liner 1, and the fan 22 and the valve 26 are arranged in the part of the upper air duct 214 located above the inner liner 1. Due to the effect of gravity, water vapor can be reduced from entering the air duct 21, the fan 22 and the heater 23 through the air inlet 211, thereby protecting them.

In some embodiments, as shown in FIG. 7 and FIG. 8 , the projection of the supplementary air inlet 2131 on the top wall 12 of the inner liner 1 is located between the projection of the fan 22 on the top wall 12 of the inner liner 1 and the projection of the air inlet 211 on the top wall 12 of the inner liner 1 .

Among them, the projection of the fan 22 on the top wall 12 of the inner tank 1 is separated from the projection of the air inlet 211 on the top wall 12 of the inner tank 1, that is, the fan 22 is staggered with the air inlet 211, which reduces the direct spraying and splashing of the fan 22 by the water flowing in from the air inlet 211 and improves reliability.

Among them, the projection of the supply air inlet 2131 on the top wall 12 of the inner liner 1 is adjacent to the projection of the air inlet 211 on the top wall 12 of the inner liner 1, that is, the supply air inlet 2131 is adjacent to the air inlet 211, which is convenient for the valve 26 to close the supply air inlet 2131 in the first position of the damper 261, and to close the air inlet 211 in the second position of the damper 261.

Among them, one of the air supply inlet 2131 and the air inlet 211 is located at the first position, and the other of the air supply inlet 2131 and the air inlet 211 is located at the second position. The first position and the second position are located on the rotation path of the damper 261 of the valve 26 rotating around the pivot axis.

In some embodiments, as shown in FIG. 7 and FIG. 8 , the air inlet 211 is arranged downward and the supplementary air inlet 2131 is arranged upward, so that the damper 261 of the valve 26 controls the opening and closing of the air inlet 211 and the supplementary air inlet 2131 when rotating around the pivot axis.

Among them, the air inlet 211 is set downward, and the inner wall of the upper air duct 214 is opposite to the air inlet 211. The flow direction of the gas in the cleaning chamber 11 is bent when entering the air duct 21 from the air inlet 211, which blocks the water flow, reduces the direct spraying and splashing of the fan 22 by the water flowing into the air inlet 211, reduces the amount of water entering the air duct 21, and improves reliability.

In some embodiments, as shown in Figures 7 and 8, the upper air duct 214 is provided with an inclined first support surface 2144 on the bottom wall 16 opposite to the supplementary air inlet 2131, and at least a portion of the periphery of the supplementary air inlet 2131 is provided with a second support surface 21311. In the second position, the lower surface of the damper 261 is in contact with the first support surface 2144 and the second support surface 21311.

In this embodiment, the damper 261 closes the air supply inlet 2131 in the first position and closes the air inlet 211 in the second position. The first supporting surface 2144 and the second supporting surface 21311 limit the damper 261 and restrict it from rotating in the direction close to the air inlet 211.

In some embodiments, drive mechanism 27 comprises a wax motor.

In actual use, as shown in FIG7 , when the input end of the control rod of the wax motor drives the damper 261 to rotate to the first position to close the upper air inlet 2131, the cleaning device is in a completely internal circulation state, and the air in the cleaning chamber 11 is sucked into the upper air duct 214 along the direction of the arrow in the figure and circulated and heated, and returns to the cleaning chamber 11 through the lower air duct 215 and the air outlet 212. This state is suitable for the time period when the cleaning chamber 11 urgently needs to be quickly heated and evaporated during the drying and storage process. During this time period, the exhaust component 4 does not work, which is conducive to the deep evaporation of the entire cavity and reduces the drying dead corner.

As shown in Figure 8, when the input end of the control rod of the wax motor drives the damper 261 to rotate along the rotating axis to the second position, the damper 261 closes the air inlet 211. At this time, the air supply inlet 2131 located on the upper side of the upper air duct 214 is opened to realize complete external circulation. The air supply inlet 2131 introduces external air and enters the cleaning chamber 11 through the lower air duct 215, providing sufficient air supplement for the cleaning chamber 11, which helps the exhaust component 4 to quickly discharge the evaporated water vapor, achieve the effect of rapid moisture removal, and help quick drying.

In some embodiments, as shown in FIG. 10 , the air inlet 211 is located on the top wall 12 of the cleaning chamber 11 and close to the back panel 14 , that is, the center of the air inlet 211 is located in the rear half of the entire cleaning device, which can reduce the effect of the air inlet 211 on the pushing and pulling of the bowl basket 5, thereby increasing the depth of the bowl basket 5 and improving the capacity of the bowl basket 5.

In some embodiments, as shown in FIG. 9 , the air inlet 211 of the air duct 21 is disposed on the top wall 12 of the cleaning chamber 11 in an area close to the side surface and the back plate 14 .

In this embodiment, the air inlet 211 of the air duct 21 is located at the rear corner of the top wall 12 of the cleaning chamber 11, which can further reduce the influence of the air inlet 211 on the pushing and pulling of the bowl basket 5, thereby increasing the depth and width of the bowl basket 5 and improving the capacity of the bowl basket 5.

In some embodiments, when the exhaust assembly 4 is working, the exhaust volume of the exhaust assembly 4 is not less than the amount of gas entering the cleaning chamber 11 from the outside.

It should be noted that in actual use, it is impossible to achieve complete sealing of the cleaning chamber 11. There is still a small amount of gas exchange between the cleaning chamber 11 and the outside world. When the exhaust volume of the exhaust component 4 is not less than the amount of gas entering the cleaning chamber 11 from the outside world, the cleaning chamber 11 is in a normal pressure or negative pressure environment, and the negative pressure environment is helpful to improve the drying rate.

In this embodiment, when only the exhaust assembly 4 is working, since the amount of external air added is less than or equal to the exhaust volume of the exhaust assembly 4, the clean chamber 11 is drawn into a negative pressure state by the exhaust assembly 4, and the negative pressure environment is helpful for improving the drying rate. When the internal circulation assembly 2 and the exhaust assembly 4 are working at the same time, the fan 22 can circulate the air in the clean chamber 11, so that the temperature and humidity in the clean chamber 11 are evenly distributed, further improving the effect of uniform drying of the entire chamber.

In some embodiments, when the exhaust assembly 4 and the fan 22 are in operation, the exhaust volume of the exhaust assembly 4 is not less than the volume of gas entering the cleaning chamber 11 from the outside.

In the related art, the single internal circulation scheme helps to circulate and heat the gas to be dried in the cleaning chamber 11 to reach a suitable temperature, but the single internal circulation scheme also requires the exhaust component 4 to gradually discharge the evaporated water vapor. During the discharge stage, there is a lack of introduction of external gas, and the exhaust component 4 will gradually draw the cleaning chamber 11 into a negative pressure. The negative pressure causes the exhaust rate to gradually decrease, resulting in the overall dehumidification rate of the cleaning equipment not being well improved.

In this embodiment, when the exhaust volume of the exhaust assembly 4 is not less than the amount of gas entering the cleaning chamber 11 from the outside, the cleaning chamber 11 is in a normal pressure or negative pressure environment, and the negative pressure environment is helpful to improve the drying rate.

When the fan 22 and the exhaust component 4 work at the same time, the fan 22 can circulate the air in the clean chamber 11, and the exhaust component 4 extracts and discharges the air in the clean chamber 11. At this time, the fan 22 will mainly introduce outside air, and a small amount of air in the chamber will be sucked in for circulation. At this time, the internal and external circulations are carried out simultaneously, which can increase the speed of moisture discharge in the clean chamber 11, meet the requirements of rapid moisture removal, and further improve the effect of uniform drying of the entire chamber.

In some embodiments, as shown in the figure, the cleaning chamber has a first side 111 and a second side 112 arranged opposite to each other, the air outlet 212 is located on the second side 112, and the distance from the center of the air inlet 211 to the second side 112 is smaller than the distance from the center of the air inlet 211 to the first side 111.

In this embodiment, as shown in Figures 2 and 9, the exhaust component 4 can be installed on the first side 111, and the exhaust component 4 and the air outlet 212 are respectively located on the first side 111 and the second side 112 which are opposite to each other, and the air inlet 211 is located close to the second side 112 where the air outlet 212 is located, that is, the air inlet 211 is away from the exhaust component 4.

By arranging the exhaust component 4 and the air outlet 212 on opposite sides and arranging the air inlet 211 away from the exhaust component 4, when the exhaust component 4 and the fan 22 are working at the same time, the flow path of the gas heated by the heater 23 in the cleaning chamber can be extended, thereby improving the utilization efficiency of the hot air thermal energy, reducing the energy consumption of the hot air drying working mode of the cleaning equipment, achieving energy saving, and at the same time improving the uniformity of gas mixing in the cleaning chamber and reducing drying dead corners.

In some embodiments, as shown in FIG. 11 , the fan 22 includes: an upper shell 221 , an impeller 222 and a motor assembly, the motor assembly is dynamically coupled to the impeller 222 , the upper shell 221 is connected to the upper air duct 214 to form a receiving cavity, and the impeller 222 is installed in the receiving cavity.

The upper air duct 214 includes a bottom shell, and a fan 22 installation position matching the size of the upper shell 221 is provided in the air duct 21. The upper shell 221 is connected to the bottom shell of the upper air duct 214 to form a accommodating cavity. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly. The bottom shell of the upper air duct 214 serves as the lower shell of the fan 22. Through the structure of assembling the fan 22 and the upper air duct 214, the installation space of the fan 22 can be increased and the power of the fan 22 that can be installed can be increased.

In this embodiment, the fan 22 is installed in the upper air duct 214. The fan 22 can only retain the upper shell 221, the impeller 222 and the motor assembly, and the original lower shell of the fan 22 is omitted, thereby reducing the overall size of the fan 22. A larger fan 22 can be installed in the same space, and the upper air duct 214 replaces the lower shell of the fan 22, and the impeller 222 is directly installed in the upper air duct 214, thereby increasing the air inlet area of the air inlet 211 and increasing the air intake volume.

In some embodiments, as shown in FIG. 11 , a sealing device 25 is provided between the fan 22 and the upper air duct 214 . The sealing device 25 may be a sealing ring, a tape or a filling glue, etc., to seal the gap between the inner tank 1 of the cleaning equipment, the fan 22 and the upper air duct 214 .

At the same time, the entire impeller 222 and the motor assembly are wrapped between the upper air duct 214 and the upper shell 221 of the fan 22, and a seal is adopted in the middle. During the operation of the entire cleaning equipment, the inner tank 1 of the cleaning equipment, the fan 22 and the upper air duct 214 are a closed space, which can reduce the amount of water vapor leaking through the gap between the fan 22 and the upper air duct 214 at each stage, thereby reducing hidden dangers.

In some embodiments, the air inlet 211 and the air outlet 212 of the air duct 21 are both provided with a sealing device 25 and a nut. The nut is tightened and compressed in the form of a snap-on sealing device 25. The sealing device 25 is located between the air duct 21 and the inner tank 1 to reduce the leakage of water in the cleaning chamber 11 from the gap between the air duct 21 and the inner tank 1, reduce the risk of water leakage, and improve the reliability of the cleaning equipment.

In some embodiments, as shown in Figures 12 and 13, the cleaning device also includes: a side panel 3, a heater 23 installed in the area of the air duct 21 located on the side of the inner tank 1, the side panel 3 installed on the side wall 13 of the inner tank 1, and a cover is arranged outside the lower air duct 215, and the inner side surface of the side panel 3 is separated from the lower air duct 215.

In this embodiment, the side panel 3 is installed on the outside of the side wall 13 of the inner tank 1 , the inner side surface of the side panel 3 is spaced apart from the lower air duct 215 , and the inner side surface of the side panel 3 is spaced apart from the heater 23 .

Among them, the heater 23 and the downwind duct 215 are located between the side panel 3 and the inner tank 1. The side panel 3 can protect the heater 23 and the downwind duct 215, and at the same time can reduce the risk of people touching high-voltage components and high-temperature heating components, thereby improving safety.

In some embodiments, as shown in FIG. 13 , the inner side surface of the side panel 3 is spaced from the lower air duct 215 by a distance c, and the distance c satisfies: c≥2 mm.

The spacing c between the inner side surface of the side panel 3 and the lower air duct 215 may be 2 mm, 4 mm, 7 mm or a wider distance.

In other words, the side plate 3 is installed on the outside of the side wall 13 of the inner container 1 , and the inner side surface of the side plate 3 is separated from the lower air duct 215 and the heater 23 .

It can be understood that a heater 23 is installed in the area of the downwind duct 215 located on the side wall 13 of the inner tank 1. In some embodiments, the downwind duct 215 is also installed with components such as a thermostat. The heating tube generates a large amount of heat, and the heating tube and the thermostat both contain high-voltage terminals, which are directly connected to high voltage.

While ensuring grounding, by installing the side panel 3 and setting the distance between the inner side surface of the side panel 3 and the downwind duct 215, on the one hand, the side panel 3 can be prevented from directly touching high-voltage and high-temperature heating components, thereby improving the safety of the cleaning equipment; on the other hand, the wall temperature on the outer side of the side panel 3 can be controlled within a safe range, thereby reducing the risk of people being scalded by contact with the side wall 13. In the embedded installation of the cleaning equipment, the high temperature of the side panel 3 can be reduced to damage the inner wall of the installation cabinet.

In some embodiments, the power of the heater 23 is P, satisfying: P≤500W.

The power P of the heater 23 may be 150W, 200W, 350W, 400W or 500W, which may be specifically limited according to usage conditions.

In the related art, the cleaning equipment with external circulation hot air drying mode is limited in installation location, the size of the fan 22 and the power of the heater 23 are small, and hot air drying can only be used as an auxiliary energy source, and high-temperature rinsing is the main energy source. Therefore, hand-washed dishes require a considerable amount of time for a single drying operation, which is inconvenient.

The present application utilizes the internal circulation hot air drying mode, increases the power of the heater 23, and sets the power of the heater 23 to P. The hot air drying can be used as the main energy source, and the high-temperature rinsing can be converted into an auxiliary energy source, which can significantly shorten the drying time of the tableware and improve convenience.

In some embodiments, the cleaning device has at least the following working modes:

First, the cleaning equipment has an internal circulation drying working mode.

In the internal circulation drying working mode, the fan 22 and the heater 23 are working, the exhaust assembly 4 is stopped, and the damper 261 is located in the first position.

When the damper 261 is located at the first position, the valve 26 is closed to seal the supplementary air inlet 2131 .

When the exhaust assembly 4 is not working and the temperature and humidity of the cleaning chamber 11 are low, the valve 26 is closed to seal the air supply inlet 2131, so that the fan 22 and the heater 23 can circulate and heat the gas in the dishwasher cavity, achieving a rapid and uniform temperature increase, and also reducing the leakage of water vapor during the cleaning process.

The gas in the cleaning chamber 11 is sucked into the air duct 21 from the air inlet 211 of the air duct 21 by the fan 22, and the hot air heated by the heater 23 enters the cleaning chamber 11 from the air outlet 212 of the air duct 21. The air in the cleaning chamber 11 is circulated and heated, and the heat is evenly distributed. The colder areas in the cleaning chamber 11 can evaporate and dry faster through heat transfer and convection heat exchange, which is beneficial to the drying of the entire chamber in the cleaning chamber 11 and reduces drying dead corners.

When the temperature and humidity in the cleaning chamber 11 are too low, the fan 22 and the heater 23 are turned on to achieve forced convection and cyclic heating in the cleaning chamber 11 , thereby accelerating the evaporation of residual water in the cleaning chamber 22 .

Secondly, the cleaning device has an external circulation drying working mode. In the external circulation drying working mode, the fan 22, the heater 23 and the exhaust assembly 4 are all working, and the damper 261 is located in the second position.

When the damper 261 is located at the second position, the valve 26 closes the air inlet 211, and the cleaning device operates in a pure external circulation mode.

At this time, the air supply inlet 2131 introduces external air into the cleaning chamber 11, providing sufficient air supply for the cleaning chamber 11, which helps the exhaust component to quickly discharge the evaporated water vapor, achieves the effect of rapid moisture removal, and helps rapid drying.

Third, the cleaning equipment has a dehumidification negative pressure working mode;

In the dehumidification negative pressure working mode, the fan 22 and the heater 23 are stopped, and the exhaust assembly 4 is working. Due to the lack of external air supply, the cleaning chamber 11 is evacuated into a negative pressure state by the exhaust assembly 4, which also helps to improve the drying rate.

Fourth, the cleaning equipment has a mixed working mode;

In the mixed working mode, the fan 22 , the heater 23 and the exhaust assembly 4 are all working, the damper 261 is located between the first position and the second position, and the air flow rate sucked in by the air inlet 211 is ≤ the air flow rate sucked in by the air supply inlet 2131 .

Among them, the driving mechanism 27 can be a stepper motor, and the driving mechanism 27 drives the damper 261 to be located between the first position and the second position. The air supply inlet 2131 and the air inlet 211 are both opened, and the cleaning equipment performs an internal circulation and external circulation mixed working mode.

The fan 22 can circulate the air in the cleaning chamber 11 to make the temperature and humidity in the cleaning chamber 11 evenly distributed, further improving the effect of evenly drying the entire chamber.

In this embodiment, when the fan 22 and the exhaust component 4 are working at the same time, the air in the clean chamber 11 sucked in by the fan 22 is less than the flow rate of the outside air sucked in from the air supply inlet 2131, and the exhaust component 4 extracts and discharges the air in the clean chamber 11. At this time, the fan 22 will mainly introduce outside air, and a small amount of air in the chamber will be sucked in for circulation. At this time, the internal and external circulations are carried out simultaneously, which can effectively improve the rapid dehumidification requirements in the dehumidification stage.

Fifth, the cleaning equipment has a mixed dehumidification working mode;

In the mixed dehumidification working mode, the fan 22 and the exhaust assembly 4 are both working, and the heater 23 is stopped, so that the air in the cleaning chamber 11 is mixed and dehumidified at the same time, further improving the effect of uniform dehumidification of the entire chamber.

In this embodiment, the damper 22 can be located in the first position to close the air supply inlet 2131, and the fan 22 is turned on to allow the air in the cleaning chamber 11 to circulate internally and mix evenly; the damper 22 can be located in the second position to close the air inlet 211, and the fan 22 is turned on to allow the air in the cleaning chamber 11 to form a constant pressure through external circulation and dehumidify quickly; the damper 22 can be located between the first position and the second position, and the air supply inlet 2131 and the air inlet 211 are both opened, and the air in the cleaning chamber 11 is mixed and dehumidified at the same time, further improving the effect of uniform dehumidification of the entire chamber.

In some embodiments, as shown in Figures 4 and 11, the cleaning device further comprises a water retaining cover 24, which is mounted on the air inlet 211. The water retaining cover 24 can be connected to the air inlet 211 by threaded connection, plug-in connection, pivot connection or snap connection.

The water retaining cover 24 has ventilation and water retaining functions, and the water retaining cover 24 can be arranged between the fan 22 and the cleaning chamber 11, and the water retaining cover 24 is located in the cleaning chamber 11. When the fan 22 is turned on, the fan 22 can pass through the water retaining cover 24 to draw the gas in the cleaning chamber 11 into the installation position of the fan 22, and at the same time, the water retaining cover 24 can reduce the direct impact and splashing of water flow on the fan 22 and the heater 23 in the air duct 21, and play a protective role.

In some embodiments, as shown in FIG. 4 , the air outlet 212 is provided with a grille 2156 .

Among them, the grille 2156 is used to guide the airflow. The grille 2156 can guide the airflow of the air outlet 212 into different directions. The guide direction of the grille 2156 can be determined according to the installation position of the exhaust component 4 and the installation position of the air inlet 211 of the air duct 21.

For example, if the air inlet 211 of the air duct 21 is set on the top wall 12 of the cleaning chamber 11, the grille 2156 can appropriately guide the hot air in the downward direction of the cleaning chamber 11, thereby extending the flow path of the hot air in the cleaning chamber 11, increasing the area of the gas heated by the heater 23 flowing through the entire cleaning chamber 11, and improving the effects of full-chamber drying and dead-corner drying of the cleaning chamber 11.

For example, if the exhaust component 4 is located in the upper left part of the cleaning chamber 11, the grille 2156 can appropriately guide the hot air in the lower rear direction of the cleaning chamber 11, thereby extending the flow path of the hot air in the cleaning chamber 11, increasing the area of the gas heated by the heater 23 flowing through the entire cleaning chamber 11, improving the effects of full-chamber drying and dead-corner drying of the cleaning chamber 11, and reducing the amount of hot air discharged by the exhaust component 4 without being utilized, thereby increasing the utilization efficiency of the hot air thermal energy.

The grille 2156 can also reduce the direct impact of water flow on the air duct 21 and protect the air duct 21.

The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally indicates that the objects associated with each other are in an "or" relationship.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In the description of this application, "first feature" or "second feature" may include one or more of the features.

In the description of the present application, “plurality” means two or more.

In the description of the present application, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

In the description of the present application, “above”, “over” and “above” a first feature to a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims (11)

1. A cleaning apparatus, comprising:

A liner forming a cleaning chamber;

An exhaust assembly mounted to the inner container and configured to exhaust gas in the cleaning chamber when opened;

The air duct is arranged in the inner container and is provided with an air inlet, an air supplementing inlet and an air outlet, the air inlet and the air outlet are both communicated with the cleaning cavity, and the air supplementing inlet is communicated with the outside;

The air door of the valve is pivotally arranged on the air duct between a first position and a second position, the air door seals the air supplementing inlet at the first position, and the air door seals the air inlet at the second position;

The fan is arranged in the air duct, the air inlet and the air supplementing inlet are both communicated with the inlet of the fan, and the outlet of the fan is communicated with the air outlet;

A heater configured to heat gas flowing through the air duct when turned on.

2. The cleaning apparatus of claim 1, wherein the cleaning apparatus comprises a cleaning device,

The cleaning equipment is provided with an internal circulation drying working mode, the fan and the heater work in the internal circulation drying working mode, the exhaust assembly is stopped, and the air door is positioned at the first position;

And/or the cleaning device has an outer circulation drying operation mode in which the fan, the heater and the exhaust assembly are operated, and the damper is located at the second position;

And/or the cleaning device has a hybrid mode of operation; in the mixed working mode, the fan, the heater and the exhaust assembly work, the air door is positioned between the first position and the second position, and the air flow sucked by the air inlet is less than or equal to the air flow sucked by the air supplementing inlet;

And/or the cleaning device has a hybrid dehumidification mode of operation; in the mixed dehumidification mode of operation, the fan with exhaust subassembly is all worked, the heater shut down.

3. The cleaning apparatus of claim 1, wherein an amount of exhaust gas from the exhaust assembly is not less than an amount of gas entering the cleaning chamber from the outside when the exhaust assembly is in operation.

4. The cleaning apparatus of claim 1, wherein the exhaust assembly has an exhaust volume that is no less than an volume of air entering the cleaning chamber from the outside when the exhaust assembly and blower are in operation.

5. The cleaning apparatus of claim 1, wherein the air duct comprises:

The upper air channel is provided with the air inlet and the air supplementing inlet, the fan and the valve are arranged on the upper air channel, and at least part of the upper air channel is arranged above the liner;

and the inlet of the lower air channel is connected with the outlet of the upper air channel, and the lower air channel is provided with the air outlet.

6. The cleaning apparatus of claim 5, wherein a projection of the supplemental air inlet at the liner top wall is located between a projection of the blower at the liner top wall and a projection of the air inlet at the liner top wall.

7. The cleaning apparatus of claim 5, wherein the air inlet is disposed downwardly and the supplemental air inlet is disposed upwardly.

8. The cleaning apparatus of claim 7, wherein the upper duct is provided with a first support surface disposed obliquely at a bottom wall opposite the air supply inlet, at least a portion of a peripheral edge of the air supply inlet is provided with a second support surface, and in the second position, a lower surface of the damper is in contact with the first support surface and the second support surface.

9. The cleaning apparatus of claim 5, wherein the blower comprises: the motor assembly is in power coupling connection with the impeller, the upper shell is connected with the upper air duct to form a containing cavity, and the impeller is installed in the containing cavity.

10. The cleaning apparatus defined in any one of claims 5-9, further comprising: the side plate is arranged in the area of the air duct, which is positioned on the side face of the inner container, the side plate is arranged on the side wall of the inner container, and covers the lower air duct, and the inner side face of the side plate is spaced from the lower air duct.

11. The cleaning apparatus of any one of claims 1-9, wherein the heater has a power P that satisfies: p is less than or equal to 500W.