CN207279947U - Electric water heater - Google Patents

Abstract

The utility model discloses an electric water heater, which comprises a water tank, a water mixing valve, an external circulation heating module, a wireless charging instant heating module and a control module. The water tank is connected with a water inlet pipe, a water outlet pipe and a circulating water pipe. The water tank is provided with a circulation nozzle, one end of the circulation water pipe is sealed and connected to the circulation nozzle, and the other end is connected to the water outlet pipe, and an outer circulation pipe electrically connected to the control module is provided in the circulation water pipe. A heating module, and a water pump electrically connected to the control module. The water inlet pipe is connected to the cold water pipe, the two water inlet ends of the water mixing valve are respectively connected to the cold water pipe and the water outlet pipe, and a wireless charging instant heating module is also arranged on the water mixing pipe of the water mixing valve , the control module communicates wirelessly with the wireless charging instant heating module. In the electric water heater of the utility model, the wireless charging instant heating module can carry out wireless charging, can heat the water flowing through it, avoids direct connection to an AC power supply for heating, and can greatly reduce the risk of electric shock accidents in the electric water heater.

Description

an electric water heater

technical field

The utility model belongs to the technical field of water heaters, in particular to an electric water heater.

Background technique

Existing storage-type electric water heaters have the problems of low hot water output rate and insufficient hot water output, that is, when the water temperature in the water tank is lower than the normal bathing temperature (usually 38-45 degrees Celsius), it will not be able to continue to output to meet the requirements. The hot water required by the user for comfortable bathing, the energy of the residual hot water in the water tank cannot be used, resulting in energy waste.

Existing products such as instant hot water faucets use high-power heating elements (electric heating wires, quartz tubes, etc.) Electric water heaters take up a lot of space, take a long time to heat up, and have technical problems such as insufficient hot water. However, in winter, the temperature between the indoor water inlet temperature (which can be as low as 4 degrees Celsius) and the water outlet temperature required for bathing (usually 38-45 degrees Celsius) The difference is 30 to 40 degrees Celsius. Under the normal bathing water flow rate (usually 3-10L/min), the power required for instant heating of cold water by a single instant heating device is as high as more than ten kilowatts, which will bring stable electricity consumption to the entire family. There may be a risk of fire caused by excessive electrical load.

Contents of the invention

The utility model proposes an electric water heater to solve the technical problems of insufficient output of hot water capacity and excessive heating power of the existing electric water heater, which can solve the above problems.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions to realize:

An electric water heater, comprising a water tank, a water mixing valve, an external circulation heating module, a wireless charging instant heating module and a control module, the water tank is connected with a water inlet pipe, a water outlet pipe and a water circulation pipe, and a circulation nozzle is opened on the water tank, One end of the circulating water pipe is sealed and connected to the circulating nozzle, and the other end is connected to the outlet pipe. The circulating water pipe is provided with an external circulation heating module electrically connected to the control module and electrically connected to the control module. connected to the water pump, the water inlet pipe is connected to the cold water pipe, the two water inlet ends of the water mixing valve are respectively connected to the cold water pipe and the water outlet pipe, and the water mixing pipe of the water mixing valve is also provided with a wireless The charging instant heating module, the control module communicates wirelessly with the wireless charging instant heating module.

Further, a temperature sensor is arranged in the water tank.

Further, the wireless charging instant heating module includes a casing, a heating element arranged in the casing, and a control circuit, and the control circuit includes a single-chip microcomputer, a first wireless communication module electrically connected to the single-chip electromechanical device, and a wireless charging power supply module and a temperature controller, the control module is connected with a second wireless communication module, wireless communication is performed between the first wireless communication module and the second wireless communication module, and the water mixing pipeline is also provided with a The temperature control switch controlled by the controller.

Further, the water mixing pipeline passes through the housing and is connected to the shower.

Further, a section of water mixing pipeline located in the casing is arranged in an S shape in the casing.

Further, a water inlet temperature sensor is arranged at the water inlet of a section of the mixed water pipeline located in the housing, and an outlet water temperature sensor is arranged at the water outlet, and the inlet water temperature sensor and the outlet water temperature sensor are respectively connected to the single-chip microcomputer.

Compared with the prior art, the advantages and positive effects of the utility model are: the electric water heater of the utility model, the wireless charging instant heating module can be wirelessly charged, can heat the water flowing through, and avoids direct connection to the AC power supply for heating, The complexity of the installation of the electric water heater system is reduced. When the water inlet temperature is high, the wireless charging instant heating module can independently provide the user with the required warm water; or perform temperature compensation on the flowing water to achieve a constant temperature water outlet, which can further reduce the water temperature in the water tank, thereby increasing the warm water output and reducing storage. Energy wasted keeping warm water in the tank.

After reading the detailed description of the embodiments of the utility model in conjunction with the accompanying drawings, other features and advantages of the utility model will become clearer.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a kind of embodiment structure diagram of electric water heater proposed by the utility model;

Fig. 2 is a structural schematic diagram of a wireless charging instant heating module in an embodiment of the electric water heater proposed by the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment 1, this embodiment proposes an electric water heater, as shown in Figure 1, including a water tank 10, a water mixing valve 11, an external circulation heating module 19, a wireless charging instant heating module 18 and a control module (not shown in the figure , set on the panel of the water tank 10), the water tank 10 is connected with the water inlet pipe 13, the water outlet pipe 14 and the circulating water pipe 12, the water tank 10 is provided with a circulating nozzle, one end of the circulating water pipe 12 is sealed and connected with the circulating nozzle, and the other end is connected with the circulating nozzle. The outlet pipe 14 is connected, the circulating water pipe 12 is provided with an external circulation heating module 19 electrically connected to the control module, and a water pump 16 electrically connected to the control module, the water inlet pipe 13 is connected to the cold water pipe 15, and the two inlets of the water mixing valve 11 The water end is connected to the cold water pipe 15 and the water outlet pipe 14 respectively. The water mixing pipe 17 of the water mixing valve 11 is also provided with a wireless charging instant heating module 18, and the control module communicates wirelessly with the wireless charging instant heating module 18. The wireless charging instant heating module 18 accepts the control of the control module, performs wireless charging, or heats the flowing water by the charged electricity. Since it does not need to be directly connected to the mains AC power supply, it can greatly reduce the heating time of the electric water heater during use. Risk of electric shock. The wireless charging instant heating module is installed at the user's water end, so that the water is hot water when the user uses it, and there is no cold water discharge, which improves the user's bathing comfort and reduces the waste of water resources. The electric water heater in this embodiment is equipped with an external circulation heating module and a wireless charging instant heating module at the same time. The external circulation heating module is used to preheat the water in the water storage tank. When the external circulation heating module is working, the control module simultaneously controls the water pump to start. The wireless charging instant heating module can independently heat the water flowing through it. Since the water flowing through the wireless charging heating module is warm water, the power requirement for the wireless charging instant heating module is not high. In this embodiment, both the external circulation heating module and the wireless charging instant heating module are controlled by the control module, and the working periods of the two are different. Therefore, in general, the external circulation heating module and the wireless charging instant heating module do not work at the same time.

After the external circulation heating module preheats the water in the water storage tank, the power can be cut off for the user to use. If the preheating temperature does not reach the bathing temperature, it will be heated by the wireless charging instant heating module. The wireless charging instant heating module 18 does not need to be directly connected with the The power connection reduces the installation requirements of sockets, wires, etc., and can be installed alone or combined with the shower, reducing the user's psychological burden on bathing and electric shock.

As a preferred embodiment, as shown in FIG. 2 , the wireless charging instant heating module 18 includes a casing 181, a heating element 182 disposed in the casing 181, and a control circuit. A wireless communication module 184, a wireless charging power supply module 185, and a thermostat 186, the control module is connected to a second wireless communication module (not shown in the figure), and wireless communication is performed between the first wireless communication module and the second wireless communication module . The water mixing pipeline 17 is also provided with a temperature control switch 187 controlled by a temperature controller 186. When the outlet water temperature is higher than 50° C., the temperature control switch 187 will close the water outlet to prevent users from being scalded when bathing. The wireless charging and heating module 18 communicates with the second wireless communication module of the control module through the first wireless communication module, and accepts the control of the control module whether to charge, and whether to control the heating element 182 to generate heat, and then heat the flowing water.

A water inlet temperature sensor 188 is provided at the water inlet of a section of the mixed water pipeline located in the shell 181, and an outlet water temperature sensor 189 is arranged at the water outlet. The collected temperature is sent to the single-chip microcomputer 183, and the single-chip microcomputer 183 is sent to the control module through the first wireless communication module, and the control module judges whether the heating element 182 needs to be turned on, and whether the temperature control switch 187 needs to be turned on, and sends a control command to the single-chip microcomputer.

As shown in FIG. 2 , the water mixing pipeline 17 passes through the housing 181 and is connected to the shower (not shown in the figure). In order to increase the heat exchange efficiency, a section of the water mixing pipeline in the shell 181 is arranged in an S shape in the shell 181 .

The wireless charging instant heating module is used for temperature compensation of the water flowing through the hot and cold water mixing valve. Its working power range is 0-5KW, and the power automatically matches the temperature and flow rate of the water flowing through the wireless charging instant heating module. When the user uses water, when the power of the wireless charging instant heating module can meet the water temperature and flow requirements, only the wireless charging instant heating module works, and the temperature compensation of the water flowing through the module is performed to meet the water outlet temperature requirements. The total power of the water heater system with an instant heating device is controlled below 5.5KW during operation, so as to avoid the risk of electricity consumption caused by the high-power instant heating method.

A temperature sensor is installed in the water tank 10 to detect the temperature in the water tank, and the control module controls the operation of the external circulation heating module 19 according to the temperature of the water tank. And when the flow rate is required, the wireless charging instant heating module does not work, and the external external circulation heating module 19 connected to the water tank 10 works; the water in the water tank 10 is pumped into the external circulation heating module 19 by the water pump 16 through the circulating water pipe for heating. Then return to the water storage tank through the circulating water pipe 12, and so on, until the water temperature in the water tank 10 reaches the set temperature requirement, at this time the external circulation heating module 19 stops working.

The wireless charging instant heating module performs temperature compensation on the warm water mixed with hot water and cold water, which can shorten the warm-up time, increase the output of bathing water, and realize the miniaturization of the water heater on the basis of ensuring the total amount of water used.

In addition, the water tank is independent from the heating device, which increases the volume of the water tank, the selection of heating power and the number of proportioning combinations, and reduces the purchase cost and maintenance and replacement cost of the user.

The external circulation heating module 19 performs circulation heating, that is, heating the flowing water, which reduces the probability of scale deposition in the instant heating module and prolongs the effective service life of the instant heating module.

Of course, the above description is not a limitation of the present utility model, and the present utility model is not limited to the above-mentioned examples. Those of ordinary skill in the art may make changes, modifications, additions or replacements within the essential scope of the present utility model. It should also belong to the protection scope of the present utility model.

Claims (5)

1. A kind of 1. electric heater, it is characterised in that：Including water tank, water mixing valve, external circulation heating module, wireless charging, that is, thermal modules And control module, the water tank are connected with water inlet pipe, outlet pipe and circulating water pipe, and the circulation mouth of pipe, institute are offered on the water tank State circulating water pipe one end to be tightly connected with the circulation mouth of pipe, other end is connected with the outlet pipe, in the circulating water pipe It is provided with the external circulation heating module being electrically connected with the control module, and the water pump being electrically connected with the control module, institute Water inlet pipe to be stated to be connected with cold water pipe, two water inlet ends of the water mixing valve are connected with the cold water pipe and the outlet pipe respectively, Wireless charging i.e. thermal modules are additionally provided with the mixed water lines of the water mixing valve, the control module is heat with the wireless charging Module carries out wireless communication.
2. 2. electric heater according to claim 1, it is characterised in that：Wireless charging, that is, the thermal modules include shell, set Put heater and control circuit in the shell, the control circuit includes microcontroller, electromechanical with the monolithic respectively The first wireless communication module, wireless charging power module and the temperature controller of connection, it is wireless that the control module is connected with second Communication module, carries out wireless communication, the mixed water lines between first wireless communication module and the second wireless communication module On be additionally provided with the temperature detect switch (TDS) for receiving temperature controller control.
3. 3. electric heater according to claim 2, it is characterised in that：The mixed water lines run through the shell after with shower Connection.
4. 4. electric heater according to claim 3, it is characterised in that：One section of mixed water lines being located in the shell are in institute S-shaped arrangement in shell is stated to lay.
5. 5. the electric heater according to claim 3 or 4, it is characterised in that：One section of mixed water lines being located in the shell Water inlet be provided with inflow temperature sensor, water outlet is provided with leaving water temperature sensors, the inflow temperature sensing Device, leaving water temperature sensors are connected with the microcontroller respectively.