CN111829166A - Electric storage electric water heater - Google Patents

Abstract

The invention discloses an electric storage type electric water heater, comprising: the shell is provided with a heat dissipation opening; the electric heating module is provided with a water inlet and a water outlet and is used for heating cold water input from the water inlet and outputting hot water from the water outlet; the storage batteries are used for storing electric energy; the charging and discharging module is used for controlling the storage battery to be charged and controlling the storage battery to be discharged so as to supply power to the electric heating module; the radiator is used for installing the charge-discharge module and is used for radiating heat released by the charge-discharge module; the electric heating module, the charge-discharge module and the storage battery are located in the shell, and the radiator is arranged in the radiating opening. The heat dissipation efficiency of the electric storage type electric water heater is improved, and the use reliability is improved.

Description

Electric storage electric water heater

technical field

The invention belongs to the technical field of household appliances, in particular to an electric storage type electric water heater.

Background technique

At present, water heaters are commonly used household appliances in people's daily life. Among them, electric water heaters are widely used because of their small size, and instant water heaters with instant heating function are used by more users because of their convenience. , and due to the limitation of current by household wires, the power of the instant water heater is low, which cannot meet the user's requirements for large-flow bathing. Chinese Patent Application No. 2018107213469 discloses an instant electric heating device equipped with a battery, that is, a battery pack is used as the electric heating device to provide electric energy for heating, thereby realizing instant water supply. Among them, the battery pack and the electric heating device are installed in the casing. During the charging and discharging process of the battery, the heat generated by the charging and discharging circuit that controls the charging and discharging of the battery, especially in the case of high power, the heat cannot be dissipated in time and effectively, making the The charge-discharge performance is degraded and electrical failures are easily caused by high temperature. How to design an electric water heater with high heat dissipation efficiency is the technical problem to be solved by the present invention.

SUMMARY OF THE INVENTION

Aiming at the above technical problems existing in the prior art, the present invention provides an electric storage electric water heater, so as to improve the heat dissipation efficiency of the electric storage electric water heater and improve the reliability of use.

In order to realize the above-mentioned purpose of the invention, the present invention adopts the following technical scheme to realize:

The present invention provides an electric storage type electric water heater, comprising:

a casing, the casing is provided with a heat dissipation opening;

an electric heating module, the electric heating module is configured with a water inlet and a water outlet, and the electric heating module is used for heating cold water input from the water inlet and outputting hot water from the water outlet;

a number of batteries for storing electrical energy;

a charging and discharging module, the charging module is used to control the charging of the storage battery, and is also used to control the discharging of the storage battery to supply power to the electric heating module;

a radiator, the radiator is used for installing the charging and discharging module and for dissipating the heat released by the charging and discharging module;

Wherein, the electric heating module, the charging and discharging module and the battery are located in the casing, and the radiator is arranged in the heat dissipation opening.

Further, the radiator includes: a heat dissipation base plate, the heat dissipation base plate is arranged on the charge and discharge module and is used to absorb the heat released by the charge and discharge module; a plurality of heat dissipation fins, the heat dissipation fins are disposed on the On the heat dissipation substrate, the heat dissipation fins are inserted into the heat dissipation openings.

Further, a plurality of the heat dissipation fins are arranged longitudinally, and a heat dissipation air duct is formed between two adjacent heat dissipation fins.

Further, the housing includes a front panel, a frame and a back panel, the frame is located between the front panel and the back panel, and the back panel is provided with a recessed groove toward the interior of the housing structure, the heat dissipation opening is located in the groove structure; the heat sink penetrates the heat dissipation opening from the inside of the casing and extends into the groove structure.

Further, the bottom of the frame is provided with a notch structure connected with the groove structure; the hot air formed by the heating of the radiator flows upward in the groove structure, and the external cold air is sucked into the groove structure through the notch structure. in the groove structure.

Further, a first installation cavity, a second installation cavity and a third installation cavity which are isolated from each other are formed in the casing, the electric heating module is located in the first installation cavity, and the charging and discharging module is located in the first installation cavity. The battery is arranged in the second installation cavity, the battery is arranged in the third installation cavity, and the heat dissipation opening communicates with the second installation cavity.

Further, it also includes: a heat dissipation frame, the heat dissipation frame is used for installing the battery and for dissipating the heat released by the battery, and the heat dissipation frame is located in the casing.

Further, it also includes: a cooling water pipe, the cooling water pipe is abutted on the heat dissipation frame and connected with the water inlet.

Further, the electric heating module includes: a heating container, the heating container has the water inlet and the water outlet; a plurality of electric heating components, the electric heating components are arranged on the heating container and are used for heating flow water in the heated vessel.

Further, the charging and discharging module includes: a battery charging unit for connecting an external power supply and charging the storage battery; a battery discharging unit for controlling the discharge of the storage battery to power each of the electric heating components.

Compared with the prior art, the advantages and positive effects of the present invention are: by setting a heat dissipation opening on the casing and adding a heat sink on the charge and discharge module, the heat sink is arranged in the heat dissipation opening, and during the charge and discharge process, the charge and discharge module generates a heat sink. The heat of the radiator is absorbed by the radiator and released to the outside of the casing through the heat dissipation opening to quickly dissipate the heat and improve the heat dissipation efficiency, thereby avoiding the failure of the charging and discharging module due to high temperature in the closed casing, thereby improving the reliability of use.

Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is one of the structural schematic diagrams of the embodiment of the electric water heater of the present invention;

Fig. 2 is the distribution diagram of the internal components of the casing in the embodiment of the electric water heater of the present invention;

Fig. 3 is the second structural schematic diagram of the embodiment of the electric water heater of the present invention;

Fig. 4 is the structural schematic diagram of the shell in the embodiment of the electric water heater of the present invention;

FIG. 5 is one of the structural schematic diagrams of the power storage module in the embodiment of the electric water heater of the present invention;

Fig. 6 is the partial enlarged schematic diagram of A area in Fig. 5;

FIG. 7 is the second schematic structural diagram of the power storage module in the embodiment of the electric water heater of the present invention;

Fig. 8 is the partial enlarged schematic diagram of B region in Fig. 7;

9 is a schematic structural diagram of a main frame body in an embodiment of the electric water heater of the present invention;

10 is a schematic structural diagram of an electric heating module in an embodiment of an electric water heater of the present invention;

11 is a cross-sectional view of an electric heating module in an embodiment of the electric water heater of the present invention;

Fig. 12 is a partial structural schematic diagram of the electric heating module in the embodiment of the electric water heater of the present invention;

13 is an assembly diagram of the first connecting frame and the second connecting frame in the embodiment of the electric water heater of the present invention;

14 is a schematic structural diagram of the first connecting frame in the embodiment of the electric water heater of the present invention;

FIG. 15 is a schematic structural diagram of the second connection frame in the embodiment of the electric water heater of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

It should be noted that, in the description of the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positions The terminology of the relationship is based on the direction or positional relationship shown in the drawings, which is only for the convenience of description, rather than indicating or implying that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a reference to the present invention. limits. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

As shown in Figures 1-4, the electric water heater in this embodiment includes: a casing 1, an electric heating module 2, a power storage module 3, a charging and discharging module 4 and a controller 5, wherein the electric heating module 2, the power storage module 3, The charging and discharging module 4 and the controller 5 are installed in the casing 1, and the casing 1 is provided with a water inlet pipe 101 and a water outlet pipe 102. The water inlet pipe 101 is connected to an external water supply source (eg, a tap water pipe) for introducing cold water, and the water outlet pipe 102 It is used to output hot water. In the actual use process, the charging and discharging module 4 can control the charging and discharging of the power storage module 3, and use the electric energy released by the power storage module 3 to supply the electric heating module 2 for heating, and the external water supply source is delivered to the electric heating module 2. The water is quickly heated by the electric heating module 2 to achieve the purpose of instant water supply. Usually, the water heater will be equipped with a temperature sensor to detect temperature and a flow sensor to detect water flow, and the controller 5 will set the parameters according to the user and The signals detected by the relevant sensors are used to control the operation of the charging and discharging module 4 .

The basic functions of the above-mentioned modules are explained: the electric heating module 2 usually includes a heating container and an electric heating component, the heating container has a water inlet and a water outlet, and the water transported by the water supply source enters the heating container from the water inlet through the water inlet pipe 101. The electric heating component obtains electrical energy to heat the water flowing in the heating container, and the hot water formed by heating is output from the water outlet of the heating container and transported to the outside through the water outlet pipe 102, while the electric heating component can use electric heating tubes, electric heating films, etc. heating device; the power storage module 3 uses a number of storage batteries to store electrical energy, and the storage battery can use existing common battery types, such as lithium batteries or nickel-cadmium batteries, etc., the specific form of the storage battery is not limited in this embodiment; the charging and discharging module 4 Usually has a battery charging unit and a battery discharging unit. The battery charging unit is connected to the commercial power to charge the battery as needed, while the battery discharging unit is connected to the electric heating component, and the electric energy released by the battery is applied to the battery through the battery discharging unit. The electric heating component can supply power to the electric heating component. The battery charging unit and the battery discharging unit can be in the form of conventional battery charging circuit and battery discharging circuit, which is not limited here; the controller 5, as the main control component, can be Set the command mode to control the operation of the electric water heater. The controller 5 usually includes a circuit board and a control chip arranged on the circuit board. Since the battery is used for power supply, the controller 5 can also be configured with a battery management system. , abbreviated BMS), use the battery management system to monitor the battery, for example, accurately estimate the state of charge (SOC) of the power battery pack, that is, the remaining battery power, and collect each battery in real time during the charging and discharging process. The voltage, temperature, current and other parameters of the battery are used to prevent overcharging or overdischarging, as well as the equalizing charging of the single battery to make each battery in the power storage module reach a balanced and consistent state. In addition, the controller 5 can also be configured There is a display screen or a display touch screen for users to check the running status of the electric water heater.

Among them, since the charging and discharging module 4 is arranged inside the casing 1, the charging and discharging module 4 will generate heat in the process of controlling the charging or discharging of the power storage module 3. If the heat is accumulated in the casing 1 and cannot be released quickly, it will The operating reliability of the charging and discharging module 4 is affected due to the high temperature inside the casing 1. For this reason, the casing 1 is provided with a heat dissipation opening 10; The discharge module 4 is also used to dissipate the heat released by the charge and discharge module 4 , and the heat sink 41 is arranged in the heat dissipation opening 10 . Specifically, during the charging and discharging process of the charging and discharging module 4, the heat generated by the charging and discharging module 4 is absorbed by the radiator 41, and since the radiator 41 is located in the heat dissipation opening 10, the cold air outside the casing 1 can interact with the heat dissipation opening 10. The radiator 41 is used for heat exchange, so as to realize the use of the radiator 41 to dissipate the heat generated by the charging and discharging module 4 . In actual use, since the heat generated by the charging and discharging module 4 can be quickly dissipated to the outside of the casing 1 through the radiator 41 , the reliable operation of the charging and discharging module 4 can be ensured.

In addition, the heat sink 41 can be made of a material with good thermal conductivity, such as copper and aluminum. In order to improve the heat dissipation efficiency, the heat sink 41 includes: a heat dissipation base plate 411 and a plurality of heat dissipation fins 412. The heat dissipation base plate 411 is arranged on the charging and discharging module 4 and is used for absorbing the heat released by the charging and discharging module 4; the heat dissipation fins 412 are arranged on On the heat dissipation substrate 411 , the heat dissipation fins 412 are inserted into the heat dissipation openings 10 . Specifically, the heat dissipation substrate 411 can be connected to the charge and discharge module 4 by means of screw fixing or snap connection, and in order to improve heat transfer efficiency, a thermally conductive adhesive is further provided between the charge and discharge module 4 and the heat dissipation substrate 411 . In this way, the charge-discharge module 4 can quickly transfer heat to the heat dissipation substrate 411 , and the heat dissipation substrate 411 in turn transfers the heat to the heat dissipation fins 412 . The heat-dissipating fins 412 located in the heat-dissipating openings 10 can fully contact and exchange heat with the outside air to achieve rapid heat dissipation. Using the principle of hot air rising, the heat dissipation fins 412 are arranged vertically in the heat dissipation opening 10 , that is, a plurality of heat dissipation fins 412 are longitudinally arranged in the heat dissipation opening 10 , and a heat dissipation air is formed between two adjacent heat dissipation fins 412 . road. The heat generated by the charging and discharging module 4 is finally transferred to the heat dissipation fins 412 , and the heat dissipation fins 412 will heat the air around it to form hot air. Using the principle of hot air rising, the heated air around the heat dissipation fins 412 rises, making heat dissipation The cold air under the fins 412 is sucked into the cooling air duct, so that the cooling efficiency can be improved more quickly and efficiently.

The position of the heat dissipation opening 10 on the housing 1 is set according to the installation position of the heat sink 41 , for example, the heat dissipation opening 10 may be provided on the back or side of the housing 1 . The housing 1 generally includes a front panel 11, a frame 13 and a back panel 12, the frame 13 is located between the front panel 11 and the back panel 12, and the front panel 11 and the back panel 12 are respectively mounted to the frame 13 to form the housing 1; The back plate 12 is provided with a groove structure 121 recessed toward the interior of the casing 1 , and the heat dissipation opening 10 is located in the groove structure 121 ; Specifically, the groove structure 121 can be formed in the back plate 12 by punching, and the heat dissipation opening 10 can be opened in the groove structure 121. In this way, a heat dissipation opening 10 with a large area can be opened on the back plate 12 to install the large heat dissipation opening 10. The size of the heat sink 41 can improve the heat dissipation efficiency. After the casing 1 is installed on the wall, a structure similar to an air duct will be formed between the groove structure 121 formed on the back plate 12 and the wall. The outside of the heat dissipation opening 10 allows the larger area of the heat dissipation fins 412 to contact the outside cold air for heat dissipation. On the other hand, the heat dissipation fins 412 extending to the outside of the heat dissipation opening 10 are still located in the groove structure 121, not This will affect the wall-mounted installation of the housing 1, and avoid the heat dissipation fins 412 extending from the heat dissipation opening 10 from extending to the outside of the back panel 12 to affect the installation.

Preferably, in order to enable the cold air at the bottom of the casing 1 to smoothly enter the groove structure 121 to exchange heat with the heat dissipation fins 412, the bottom of the frame 13 is provided with a notch structure 131 connected to the groove structure 131; the heat sink 41 The hot air formed by heating flows upward in the groove structure 121 , and the external cold air is sucked into the groove structure 121 through the notch structure 131 . Specifically, the gap structure 131 formed at the bottom of the frame 13 serves as a cold air inlet. The heat dissipation fins 412 in the groove structure 121 heat the air up through the gap between the casing 1 and the wall and flow out of the groove structure 121 , and the bottom of the casing 1 flows out of the groove structure 121 . The cold air can quickly enter into the groove structure 121 through the notch structure 131 to cool the heat dissipation fins 412 . The air duct-like structure formed between the groove structure 121 and the wall can form a certain negative pressure at the gap structure 131 under the action of hot air rising to inhale the cold air at the bottom of the casing 1, thereby accelerating the air flow on the surface of the cooling fins 412. speed.

By setting a heat dissipation opening on the casing and adding a heat sink on the charge and discharge module, the heat sink is arranged in the heat dissipation opening. During the charging and discharging process, the heat generated by the charge and discharge module is absorbed by the heat sink and released to the outside of the casing through the heat dissipation opening. The heat dissipation efficiency is improved by rapidly dissipating heat, thereby avoiding the occurrence of failure of the charging and discharging module due to high temperature in the closed casing, thereby improving the reliability of use.

Based on the above technical solutions, optionally, in order to meet the requirements for heat dissipation of the battery, the reliability and safety of the use of the battery can be improved. As shown in FIGS. 5-9 , the power storage module 3 includes: a plurality of batteries 31 and a heat dissipation frame 32 , wherein the heat dissipation frame 32 is used for installing the storage battery 31 and for dissipating the heat released by the storage battery 31 ; the storage battery 31 is connected to the heat dissipation frame 32 by thermal conduction. . Specifically, on the one hand, the heat dissipation frame 32 is used to install and fix a plurality of batteries 31 to facilitate unified assembly later, and on the other hand, the heat dissipation frame 32 has the function of dissipating heat from the batteries 31 , and the heat dissipation frame 32 can be made of thermally conductive material. , metals with good thermal conductivity such as aluminum or copper.

In order to improve the heat transfer efficiency between the battery 31 and the heat dissipation frame 32, the storage battery 31 is pasted on the heat dissipation frame 32 with thermally conductive adhesive. 31 is bonded to the heat sink 32. On the one hand, the thermally conductive adhesive can easily and quickly assemble the battery 31 to the heat sink 32. On the other hand, the thermally conductive adhesive can quickly conduct heat to improve the heat transfer efficiency of the battery 31.

In order to increase the contact area, the battery 31 has a flat structure as a whole, and the back of the battery 31 is attached to the heat dissipation frame 32 through a thermally conductive adhesive. Preferably, in order to install the battery 31 more reliably, the heat dissipation frame 32 includes: a main frame body 321, the main frame body 321 is provided with an installation groove 3211, the battery 31 is installed in the corresponding installation groove 3211 through thermal conductive glue, and the installation groove The slot 3211 can independently install a single battery 31, and at the same time, the battery 31 can be limited in the installation groove 3211 by the bottom and both sides of the installation groove 3211 to improve assembly reliability. The installation groove 3211 is also provided with a positioning plate 3212. The positioning plate 3212 is used to position the end face of the battery 31 with two electrodes. Limit the position to further improve the assembly reliability.

In addition, in order to further improve the assembly reliability of the battery 31 and prevent the battery 31 from falling off during transportation, the main frame body 321 is also provided with a connecting frame, which is clamped to the main frame body 321 by using the connecting frame. The connecting frame will abut against the front of the battery 31 so that the battery 31 is sandwiched between the connecting frame and the main frame body 321 . Specifically: when the battery 31 is installed on the front or back of the main frame body 321, the main frame body 321 is further provided with a plurality of first card interfaces; the heat dissipation frame 32 further includes: a first connection frame, the first connection frame The frame is provided with a plurality of first snap connectors; wherein, the first snap connectors are mounted in the first card interface, and the battery 31 is sandwiched between the main frame body 321 and the first connector frame. Specifically, in the case of installing the battery 31 on one surface of the main frame body 321 , after the battery 31 is bonded to the main frame body 321 by thermally conductive adhesive, the first snap-on connector is directly clipped to the main frame body 321 . In the first card interface, in order to complete the assembly of the first connecting frame, the battery 31 is clamped between the first connecting frame and the main frame body 321 , so as to ensure that the battery 31 will not be detached from the installation groove 3211 . Similarly, in the case where the battery 31 is provided on both the front and the back of the main frame body 321, a plurality of through holes 3210 are also provided on the main frame body 321; the heat dissipation frame 32 includes: a second connection frame 322, a second The connection frame 322 is provided with a plurality of second card interfaces (not marked); the third connection frame 323 is provided with a plurality of second clamping connectors 3231 ; the main frame body 321 is located in the second connection frame 323 . Between the connection frame 322 and the third connection frame 323 , the second snap connection piece 3231 is inserted into the second card interface through the corresponding through hole 3210 , and part of the battery 31 is clamped between the main frame body 321 and the second connection frame 322 In between, the remaining part of the battery 31 is sandwiched between the main frame body 321 and the third connection frame 323 . Specifically, after the battery 31 is correspondingly attached to the front and back of the main frame body 321 through the thermally conductive adhesive, the second snap-on connector 3231 passes through the through hole 3210 from one side of the main frame body 321 and is clipped into the second frame body 321 . In the card interface, at this time, both the second connection frame 322 and the third connection frame 323 are closely attached to the front surface of the battery 31 , so as to realize the fastening of the battery 31 .

For the first snap-on connector and the second snap-on connector 3231 described above, in order to realize the snap-on function, taking the second snap-on connector 3231 as an example, the snap-on connector of the second snap-on connector 3231 The end portion forms a claw, and the claw is clamped into the second card interface to realize the snap connection; or, the second snap connection piece 3231 has a plate-like structure as a whole, and the free ends of the plate-like structure are respectively provided with upturns The elastic card 3232, the elastic card 3232 passes through the second card interface and is stuck on the edge of the second card interface.

Further, in order to more effectively dissipate heat from the battery 31 , the power storage module 3 further includes a heat collecting component, and the heat collecting component is used for collecting the heat released by the battery 31 by transferring heat through the heat dissipation frame 32 . Specifically, the heat generated during the charging and discharging process of the battery 31 is transferred to the heat dissipation frame 32, part of the heat conducted by the heat dissipation frame 32 is naturally dissipated, and the remaining part of the heat is absorbed by the heat collection component, which adopts an active heat absorption method. It can absorb heat more quickly and efficiently.

In order to fully utilize the heat generated by the battery 31 to heat water, the heat collection component includes: a cooling water pipe 33, which is abutted on the main frame body 321 and connected to the water inlet. Specifically, in the process of turning on the electric water heater to generate hot water, the cold water input from the external water supply source first enters the cooling water pipe 33 through the water inlet pipe 101 , and the cold water flowing through the cooling water pipe 33 has a lower temperature, and the battery 31 is discharged when the water is discharged. The heat from the cooling water will heat the main frame body 321, and the high temperature difference can speed up the heat transfer efficiency between the cold water and the main frame body 321, thereby quickly absorbing heat. At the same time, the cold water in the cooling water pipe 33 absorbs heat and enters the electric heating module 2. In the middle, the cold water is heated by the heat released by the battery 31, so that the power consumption of the electric heating module 2 can be reduced, so as to reduce the energy consumption and improve the output rate and output of the hot water. The cooling water pipe 33 is reciprocally bent and arranged on the main frame body 321 , and has a serpentine coil structure as a whole, so as to increase the thermal contact area with the main frame body 321 and to speed up the heat dissipation efficiency.

Wherein, in order to conveniently install the cooling water pipe 33, a pipe groove 3213 matching the extending direction of the cooling water pipe 33 can be formed on the front or back of the main frame body 321, and the cooling water pipe 33 is located in the pipe groove 3213, so that the cooling water pipe 33 is connected to the The contact area between the main frame bodies 321 is increased to improve the heat transfer efficiency. At the same time, the cooling water pipe 33 is located in the pipe groove 3213 so as not to increase the overall thickness of the power storage module 3 to ensure a light and thin design. Alternatively, a sandwich structure may be formed in the main frame body 321, and the cooling water pipe 33 is located in the sandwich structure. The phase change heat storage material may also be included, the phase change heat storage material is filled in the sandwich structure, and the phase change heat storage material can effectively fill the entire sandwich structure to maximize the heat dissipation efficiency. In addition, during the charging process of the power storage module 3, the heat released by the battery 31 can be collected by the phase change heat storage material, so that the heat released by the phase change heat storage material can be used to preheat the cooling water pipe 33 during the start-up phase of the electric water heater. in order to achieve the effect of fast output of hot water.

In addition, there are various ways of connecting the battery 31. According to the different power supply voltages output by the battery module 3, the battery 31 can be connected to a corresponding circuit. For example, the battery module 3 can output high-voltage electricity of 150V-222V. , or, the low voltage of 36V-42V that the power storage module 3 can output. In the case where the power storage module 3 outputs high-voltage electricity of 150V-222V, in order to more effectively improve the overall heating power, the electric water heater can also be equipped with an external power discharge module 6, which is used to connect the The external power supply supplies power to the remaining electric heating components. Specifically, in the conventional heating mode, the electric energy supplied by the power storage module 3 can meet the heating requirements of the electric heating module 2, and when more power is required to output more When the hot water is supplied, the external power supply discharge module 6 will provide auxiliary power supply to increase the heating power. The external power supply discharge module 6 is connected to the mains and converts the mains into the same voltage value as the output voltage of the power storage module 3, together for electric heating The module 2 supplies power, and the representation entity of the external power supply discharge module 6 may refer to the discharge control device of a water heater powered by conventional commercial power, which is not limited here. Preferably, the electric heating module 2 can be equipped with two heating containers 21, and each heating container 21 is correspondingly equipped with an electric heating component, wherein the electric heating component on one heating container 21 is powered by the power storage module 3, and The electric heating components on the other heating container 21 can be powered by an external power supply discharge module 6; Part of the electric heating components are powered by the power storage module 3 , and the rest of the electric heating components are powered by the external power supply discharge module 6 .

The electric water heater in this embodiment, in order to accurately control the temperature of the water outlet, further includes: a flow sensor, which is used to detect the water inlet or outlet flow of the electric heating module 2; a first temperature sensor, which is used to detect the flow rate of the water inlet. Inlet water temperature; a second temperature sensor, the second temperature sensor is used to detect the water outlet temperature of the water outlet; the controller 5 is used to set the parameters according to the user and the signals detected by the flow sensor, the first temperature sensor and the second temperature sensor. Control the operation of the charging and discharging module 4 . Specifically, the flow sensor can be used to detect the water output of the electric water heater, the first temperature sensor detects the incoming cold water temperature, and the second temperature sensor detects the output hot water temperature. Use the detected water flow and water temperature to accurately control the action of the charging and discharging module 4 to adjust the power supply of the power storage module 3. The specific control method is: after the user sets the water temperature, when the flow sensor detects the water flow, according to the first The temperature of the incoming water detected by a temperature sensor and the water flow detected by the flow sensor are used to calculate the heat required for heating the water, so as to control the power storage module 3 to supply power to the electric heating module 2 to heat the water. Specifically, when the information of the inlet water temperature, water flow and required outlet water temperature is known, the required heat can be calculated according to the temperature difference between the inlet water temperature and the user-set temperature and the water flow value, and The required heating power is converted according to the required heat to control the discharge of the power storage module 3, and the controller 5 further adjusts the charge and discharge module 4 according to the temperature value of the water outlet detected by the second temperature sensor, so as to make the power storage The module is more reasonably discharged for heating, and the temperature difference to the outlet water temperature is within the range of ±1°C, thereby effectively improving the user experience. According to the temperature signal fed back by the second temperature sensor, if the temperature value detected by the second temperature sensor is lower than the outlet water temperature set by the user, the discharge power of the battery module will be increased; if the temperature value detected by the second temperature sensor is greater than the user When setting the outlet water temperature, reduce the discharge power of the battery module. Preferably, in the case of using the external power supply discharge module 6 for auxiliary power supply, when the battery is at the maximum discharge power, if the temperature value detected by the second temperature sensor is less than the user-set water temperature, the external power supply discharge module is activated. Auxiliary power supply to the electric heating module to heat water.

Based on the above technical solutions, optionally, in order to satisfy the separation of water and electricity, to improve the reliability and safety of the use of the battery. As shown in FIGS. 1-2 , partitions 103 and/or partitions 104 are arranged in the housing 1 to form a plurality of installation cavities. Independent installation cavities are configured, the controller 5 and the charge and discharge module 4 can be installed in the same installation cavity, and the heat dissipation opening 10 on the housing 1 communicates with the installation cavity in which the charge and discharge module 4 is installed. The case 1 is described by taking as an example that the partition plate 103 and the partition plate 104 are provided and three installation cavities are formed. The electric heating module 2 is arranged in the first installation cavity, the charging and discharging module 4 is arranged in the second installation cavity, and the electricity storage module 3 is arranged in the second installation cavity. The electric heating module 2 is independently placed in the first installation cavity for heating water, and the charging and discharging module 4 and the electricity storage module 3 are arranged in isolation from the electric heating module 2 . During use, even if there is water leakage during the heating of water by the electric heating module 2, the water leaked from the electric heating module 2 will only flow into the first installation cavity, and will not affect the second installation cavity. The charging and discharging module 4 and the power storage module 3 are affected, so as to avoid the short circuit caused by the charging and discharging module 4 or the power storage module 3 being soaked in water.

Among them, for example, to meet the requirements of circuit wiring, so as to supply power to the electric heating module 2, the partition plate 103 and the partition plate 104 are provided with wiring holes (not marked), and the electric heating module 2 passes through the power supply cable (not shown in the figure). shown) is connected to the charging and discharging module 4, and the power supply cable is passed through the wiring hole. In the case where the cooling water pipe 33 is used to dissipate heat from the power storage module 3 , the partition plate 103 and the partition plate 104 are provided with installation holes (not marked), and the cooling water pipe 33 passes through the installation holes. Wherein, the connection part between the cooling water pipe 33 and the water inlet pipe 101 is located in the first installation cavity, and similarly, the connection part between the cooling water pipe 33 and the electric heating module 2 is also located in the first installation cavity and in the second installation cavity The part of the cooling water pipe 33 is a complete pipe body, so as to avoid water leakage at the connection part of the cooling water pipe 33 from affecting the charging and discharging module 4 and the power storage module 3 in the second installation cavity.

In addition, the electric heating module 2 , the electricity storage module 3 and the charging and discharging module 4 are respectively provided with mutually independent installation cavities, which can further prevent the heat generated by the related components in the casing 1 from interacting with each other. The controller 5 and the charging and discharging module 4 may be installed in the same installation cavity, and the heat dissipation opening 10 on the housing 1 is connected to the installation cavity in which the charging and discharging module 4 is installed.

Based on the above technical solutions, optionally, in order to reduce the water temperature fluctuation range of the output hot water during the process of heating the water by the electric heating module 2 . As shown in FIGS. 10-12 , the electric heating module 2 includes: a heating container 21 and an electric heating component, and the electric heating component can be an electric heating component provided in the heating container 21 , or an electric heating component provided outside the heating container 21 . The heating film 22 is described by taking the use of the electric heating film 22 as an example. The heating container 21 includes: a base 211, an inner pipe 212, an outer pipe 213 and a plug 214. The base 211 is provided with a water inlet 2111 and a water outlet 2112; The nozzle is communicated with the water inlet 2111; the outer pipe 213 is sleeved on the outside of the inner pipe 212 and installed on the base 211, and a nozzle of the outer pipe 213 is communicated with the water outlet 2112; the plug 214 seals and blocks the outer pipe 213. Another nozzle; a plurality of electric heating films 22 may be arranged outside the outer tube 213 in the axial direction. Specifically, in the actual use process, the water enters the outer pipe 213 through the water inlet 2111 of the base 211. During the water flow in the outer pipe 213, the electric heating film 22 will heat the water outside the outer pipe 213. The hot water flows along the outer pipe 213 to form hot water and enters the inner pipe 212, and the water flowing through the inner pipe 212 is surrounded by the water flowing in the outer pipe 213. The dissipated heat will be absorbed by the water flowing in the outer pipe 213, effectively reducing heat loss and improving heating efficiency. The water output from the inner pipe 212 is not directly heated by the electric heating film 22, which can effectively reduce the fluctuation of the output water temperature.

Preferably, a support plate 215 is further provided between the inner tube 212 and the outer tube 213 , and the inner tube 212 can be stably installed in the outer tube 213 by using the support plate 215 to ensure the water flow formed between the inner tube 212 and the outer tube 213 The thickness of the interlayer is uniform; and the support plate 215 can be an annular structure, the support plate 215 is sleeved outside the inner tube 212, the outer edge of the support plate 215 is abutted on the inner tube wall of the outer tube 213, and can be configured along the axis of the inner tube 212. There are a plurality of support plates 215 to effectively ensure that the distance between the inner tube 212 and the outer tube 213 remains unchanged. Alternatively, the support plate 215 has a spiral structure as a whole. The support plate 215 is spirally arranged around the outside of the inner tube 212. The outer edge of 215 abuts against the inner tube wall of outer tube 213 . In addition, in order to reduce the occurrence of stratification of cold and hot water, the support plate 215 is used to disturb the water flowing in the outer pipe 213 to destroy the boundary layer of water flow, so as to quickly promote the mixing of cold and hot water, and further reduce the water output. The fluctuation range of the temperature, specifically, for the support plate 215 adopting the annular structure, a plurality of water holes (not marked) are provided on the support plate 215, and the water flowing in the outer pipe 213 passes through the turbulence of the water holes. For the purpose of mixing hot and cold water, the support plate 215 can be inclined relative to the axis of the inner pipe 212, so as to use the support plate 215 to further guide the water flow and cause turbulence. The surface of the support plate 215 is provided with a hollow structure, which can more effectively increase the turbulence effect. Under the turbulent action of the support plate 215, the phenomenon of film boiling of the water in the outer tube 213 due to excessive heating temperature can be further reduced or avoided. In order to maximize the use of the heat generated by the electric heating film 22 and reduce energy consumption, an insulating layer is also provided on the outside of the heating container 21, and the heating container 21 is completely wrapped by the insulating layer on the outside to reduce the generation of the electric heating film 22. heat dissipation, improve heat utilization and reduce energy consumption. At the same time, a gap is formed between the nozzle of the inner tube 212 and the plug 214 opposite to the plug 214, which can effectively reduce the water resistance phenomenon caused by the change of the flow direction of the water flow.

Based on the above technical solutions, optionally, in order to meet the requirements of light and thin installation, as shown in Figures 1, 3, 4, 13-15, the casing 1 is further provided with a wall mount 14 for mounting on the wall , the wall mount 14 includes a first connecting frame 141 and a second connecting frame 142, and in order to save installation space, the back of the casing 1 is provided with an installation space (not marked) extending toward the interior of the casing 1; wherein, the first connecting frame 141 is fixed In the installation space, the second connecting frame 142 is used to be fixed on the wall to suspend the first connecting frame 141; while in actual use, the second connecting frame 142 is fixed and installed on the wall by means of bolts, etc. The connecting frame 141 is hung on the second connecting frame 142, and at this time, part or all of the second connecting frame 142 will be located in the installation space. Specifically, since an installation space extending toward the interior of the casing 1 is formed, the installation space is used to install and fix the first connecting frame 141, so that the first connecting frame 141 can be hidden in the casing 1, thereby preventing the first connecting frame 141 from outside It is placed outside the casing 1 to increase the thickness dimension. When the casing 1 needs to be hung, the first connecting frame 141 is suspended on the second connecting frame 142. At this time, part or all of the second connecting frame 142 will extend into the installation space, so that the casing can be used. 1 thickness space to accommodate the second connecting frame 142 . In actual use, when the first connecting frame 141 and the second connecting frame 142 are well connected, it is possible to realize that the second connecting frame 142 is all located in the installation space, and is affected by the installation level of the operator and the wall installation environment of the user's home, etc. Due to the influence of factors, the part of the second connecting frame 142 that abuts on the wall will be exposed to the outside of the installation space. However, on the whole, after the casing 1 is hung on the wall through the wall hanging frame 14, the space occupied by the casing 1 The space is substantially the same as its thickness, so that the additional space occupied by the wall mount 14 can be effectively reduced.

Wherein, the first connecting frame 141 is provided with a first hanging portion, the second connecting frame 142 is provided with a second hanging portion matched with the first hanging portion, and the first hanging portion is hung on the second hanging portion. Specifically, the concrete representation entities of the first suspension portion and the second suspension portion have various structural forms. For example, the first hanging portion is a hook provided on the first connecting frame 141 , the second hanging portion is a hanging hole provided on the second connecting frame 142 , and the hook is hung in the hanging hole. Similarly, in order to improve connection reliability and installation convenience, the first hanging portion is a hanging plate 1411 provided on the first connecting frame 141 and extending downward, and the second hanging portion is provided on the second connecting frame 142 and extending upward When installing the suspension housing 1, the hanging plate 1411 is inserted into the area formed between the supporting plate 1421 and the second connecting frame 142. As for the hanging plate 1411 and the supporting plate 1421, the hanging plate 1411 can be integrally formed on the first connecting frame 141. Similarly, the supporting plate 1421 can be integrally formed on the second connecting frame 142. The frame 141 and the second connecting frame 142 are respectively elongated as a whole. Taking the first connecting frame 141 as an example, the first connecting frame 141 can directly form the hanging plate 1411 on the first connecting frame 141 by means of sheet bending and stamping. In this way, after the first connecting frame 141 is installed in the installation space, the overall longitudinal section of the first connecting frame 141 is an inverted U-shaped structure or an inverted J-shaped structure. Correspondingly, the overall longitudinal section of the first connecting frame 141 is a U-shaped structure or a J-shaped structure.

Preferably, in order to facilitate the operator to install the casing 1 and make the casing 1 stick to the wall to the maximum extent to reduce the exposure of the second connecting frame 142 , the support plate 1421 is bent upward from the lower part of the second connecting frame 142 to extend , the side of the support plate 1421 inclined away from the main body of the second connecting frame 142 extends upward. In this way, during actual installation, the housing 1 is lifted so that the hanging plate 1411 is higher than the upper edge of the supporting plate 1421 , the hanging plate 1411 is inserted between the supporting plate 1421 and the second connecting frame 142 and slides down along the supporting plate 1421 , using the inclined guidance of the support plate 1421, during the descending process of the casing 1, the hanging plate 1411 drives the casing 1 to move towards the second connecting frame 142 gradually, and finally, the casing 1 can be close to the wall and the second connecting frame 142 can enter into the installation space. In addition, the installation space on the casing 1 can be set at the top area of the casing 1, that is, the installation space is formed at the connection part of the back panel 12 and the top of the frame 13. Correspondingly, the first connecting frame 141 is located on the top of the casing 1. . The edges of the front panel 11 can be provided with a flanging structure to wrap around the frame 12 . For example, the upper edge of the front panel 11 forms a first flanging structure 111 , and the first flanging structure 111 can extend to the back of the housing 1 . It is flush with the back panel 12, and the first connecting frame 141 in the installation space is covered by the first flanging structure 111 to optimize the appearance effect. At the same time, the two side edges of the front panel 11 respectively form a second flanging structure 112, and the second flanging structure 112 can extend to the back of the housing 1 and be flush with the back panel 12; the lower edge of the front panel 11 forms a third flanging structure 112. The flanging structure 113 and the third flanging structure 113 are attached to the bottom of the frame 13, so that the front panel 11 has a shell-type structure as a whole. The overall appearance is more beautiful.

Further, the hanging plate 1411 is provided with a positioning insert 1412 extending downward, the second connecting frame 142 is provided with a positioning hole 1422 , and the positioning insert 1412 is inserted into the positioning hole 1422 . Specifically, after the first connecting frame 141 is suspended on the second connecting frame 142, the positioning inserts 1412 are inserted into the corresponding positioning holes 1422 to restrict the lateral movement of the first connecting frame 141 on the second connecting frame 142. to improve installation reliability. In addition, since the second connecting frame 142 is usually installed on the wall by means of bolts, the back of the second connecting frame 142 is provided with a plurality of mounting holes 1423 for installing wall-hung bolts, and the support plate 1421 is provided with mounting holes 1423 for mounting The first notch 1424 is matched with the hole, and the first notch 1424 is arranged opposite to the corresponding installation hole 1423; in this way, when the second connecting frame 142 is installed, the bolt can be connected to the wall through the first notch 1424 and the installation hole 1423, and the bolt can be connected to the wall. The first notch 1424 is used to avoid the support plate 1421, so as to avoid the interference effect of the support plate 1421 on the installation of the bolts. At the same time, the first connecting frame 141 is provided with a second notch 1413 which is matched with the first notch 1424. After the bolt is fixed and installed on the wall, the end of the bolt will be exposed to the second connecting frame 142. Outside, after the first connecting frame 141 is installed on the second connecting frame 142, the exposed end of the bolt is located in the second gap 1413, and the hanging plate 1411 can avoid the end of the bolt through the second gap 1413 to avoid Improve installation convenience.

In addition, for the power storage module 3, since several storage batteries 31 are used, the overall weight of the power storage module 3 is relatively heavy, so the power storage module 3 can be directly connected to the first connecting frame 141, and the first connecting frame 141 is used as a suspension member It also acts as a load-carrying member at the same time, the weight of the power storage module 3 is borne by the first connecting frame 141, a thinner and lighter casing 1 can be used, and only the structural strength of the first connecting frame 141 needs to be strengthened, so that the amount of material used can be saved, Helps to reduce manufacturing costs.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art can still The recorded technical solutions are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed in the present invention.

Claims (10)

1. An electric storage type electric water heater, characterized in that, comprising: a casing, the casing is provided with a heat dissipation opening; an electric heating module, the electric heating module is configured with a water inlet and a water outlet, and the electric heating module is used for heating cold water input from the water inlet and outputting hot water from the water outlet; a number of batteries for storing electrical energy; a charging and discharging module, the charging module is used to control the charging of the storage battery, and is also used to control the discharging of the storage battery to supply power to the electric heating module; a radiator, the radiator is used for installing the charging and discharging module and for dissipating the heat released by the charging and discharging module; Wherein, the electric heating module, the charging and discharging module and the battery are located in the casing, and the radiator is arranged in the heat dissipation opening. 2. The electric storage electric water heater according to claim 1, wherein the radiator comprises: a heat dissipation base plate, the heat dissipation base plate is arranged on the charge and discharge module and is used for absorbing heat released by the charge and discharge module; A plurality of heat dissipation fins, the heat dissipation fins are arranged on the heat dissipation base plate, and the heat dissipation fins are inserted into the heat dissipation openings. 3 . The electric storage electric water heater according to claim 2 , wherein a plurality of the heat dissipation fins are arranged longitudinally, and a heat dissipation air duct is formed between two adjacent heat dissipation fins. 4 . 4 . The electric storage electric water heater according to claim 1 , wherein the housing comprises a front panel, a frame and a back panel, and the frame is located between the front panel and the back panel, so that the The back panel is provided with a groove structure recessed toward the inside of the casing, the heat dissipation opening is located in the groove structure; the heat sink penetrates the heat dissipation opening from the interior of the casing and extends to the concave in the slot structure. 5. The electric storage electric water heater according to claim 4, wherein the bottom of the frame is provided with a notch structure connected with the groove structure; The groove structure flows upward, and the external cold air is sucked into the groove structure through the notch structure. 6 . The electric storage electric water heater according to claim 1 , wherein a first installation cavity, a second installation cavity and a third installation cavity isolated from each other are formed in the casing, and the electric heating The module is located in the first installation cavity, the charging and discharging module is arranged in the second installation cavity, the battery is arranged in the third installation cavity, and the heat dissipation opening communicates with the second installation cavity Install the cavity. 7. The electric storage electric water heater according to any one of claims 1-6, characterized in that, further comprising: a heat-dissipating frame, which is used for installing the battery and dissipating the heat released by the battery, and the heat-dissipating frame is located in the casing. 8. The electric storage electric water heater according to claim 7, characterized in that, further comprising: A cooling water pipe is attached to the cooling frame and is connected with the water inlet. 9. electric water heater according to claim 1, is characterized in that, described electric heating module comprises: a heating container, the heating container has the water inlet and the water outlet; A plurality of electric heating components are provided on the heating vessel and used to heat water flowing through the heating vessel. 10. The electric water heater according to claim 1, wherein the charging and discharging module comprises: a battery charging unit, which is used for connecting to an external power supply and charging the storage battery; A battery discharge unit for controlling the discharge of the battery to power each of the electric heating components.

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