Storage electric water heater

Abstract

The present invention discloses an electric storage type water heater, comprising: a shell, a water pipeline for water supply flow is arranged in the shell, and a safety valve is arranged on the water pipeline; an electric heating module, the electric heating module is connected to the water pipeline, the electric heating module is configured with a water inlet and a water outlet, and the electric heating module is used to heat the cold water input from the water inlet and output hot water from the water outlet; a power storage module, the power storage module is used to store electric energy; a charging and discharging module, the charging and discharging module is used to control the charging of the power storage module, and is also used to control the discharging of the power storage module to supply power to the electric heating module; an evaporation water tank, the evaporation water tank is used to collect the water discharged from the safety valve and heat and evaporate it by using the heat released by the charging and discharging module; wherein the electric heating module, the power storage module, the charging and discharging module and the evaporation water tank are all arranged in the shell. The water flowing out of the safety valve is treated by heating and evaporation, and the water flowing out of the safety valve does not need to be discharged indoors, thereby improving the user experience of the electric water heater.

Description

Technical Field

[0001] The present invention belongs to the technical field of household appliances, and in particular relates to a storage type electric water heater. Background Art

[0002] At present, water heaters are household appliances commonly used in people's daily lives. Among them, electric water heaters are widely used due to their small size, while instant water heaters with instant heating function are used by more users due to their convenience.

[0003] In order to overcome the limitation of heating power by mains electricity, instant water heaters are usually equipped with battery packs, which use the stored electricity in the battery packs to power the electric heating components of the instant water heaters to meet the requirements of high-power water heating. Usually, the water heater is equipped with a safety valve at the water inlet. During the heating process, when the internal pressure of the water channel is too high, the water can be discharged through the safety valve.

[0004] During use, the safety valve is usually connected to a drain pipe, which extends to the outside of the water heater and discharges the water flowing out of the safety valve into the house. In this way, the water flowing out of the drain pipe flows to the floor inside the house, making the floor wet and easily causing users to slip, affecting user experience. In view of this, how to design an electric water heater with high user experience is a technical problem to be solved by the present invention. Summary of the invention

[0005] In view of the above technical problems existing in the prior art, the present invention provides an electric storage water heater, which processes water flowing out of a safety valve by heating and evaporating, so as to improve the user experience of the electric storage water heater.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] The present invention provides an electric storage water heater, comprising:

[0008] A housing, wherein a water pipeline for supplying water is arranged in the housing, and a safety valve is provided on the water pipeline;

[0009] An electric heating module, the electric heating module is connected to the water pipeline, the electric heating module is configured with a water inlet and a water outlet, the electric heating module is used to heat the cold water input from the water inlet and output hot water from the water outlet;

[0010] A power storage module, wherein the power storage module is used to store electric energy;

[0011] A charging and discharging module, which is used to control the charging of the power storage module and is also used to control the discharging of the power storage module to supply power to the electric heating module;

[0012] An evaporation water tank, which is used to collect water discharged from the safety valve and heat and evaporate it using the heat released by the charging and discharging module;

[0013] Wherein, the electric heating module, the power storage module, the charging and discharging module and the evaporation water tank are all arranged in the shell.

[0014] Furthermore, a water pipe is provided between the drain outlet of the safety valve and the evaporation water tank.

[0015] Furthermore, it also includes a heat dissipation module, which is used to absorb the heat released by the charging and discharging module and heat the water in the evaporation water tank.

[0016] Furthermore, the charging and discharging module is thermally connected to the heat dissipation module, the heat dissipation module is located above the evaporation water tank, and one end of the heat dissipation module is located in the evaporation water tank.

[0017] Furthermore, the shell is provided with an air inlet and an air outlet; the heat dissipation module is located on one side of the air inlet and the air outlet.

[0018] Furthermore, the heat dissipation module includes: a heat dissipation substrate, which is arranged on the charging and discharging module and is used to absorb the heat released by the charging and discharging module; a plurality of heat dissipation fins, which are arranged on the heat dissipation substrate; wherein the heat dissipation substrate and / or the heat dissipation fins extend into the evaporation water tank.

[0019] Furthermore, the air outlet is located above the air inlet, and the heat dissipation fins are arranged longitudinally; an air guide plate is also provided on the heat dissipation substrate, and the air guide plate is located above the heat dissipation fins. The air guide plate is used to guide the air flowing through the heat dissipation fins to flow toward the air outlet.

[0020] Furthermore, two relatively arranged air guide plates are provided on the heat dissipation substrate, and the two air guide plates are arranged close to each other and inclined from bottom to top, and an air outlet portion is formed between the upper ends of the two air guide plates. A fan is also provided on the heat dissipation substrate, and the fan is located above the air outlet portion and faces the air outlet.

[0021] Furthermore, the power storage module includes: a plurality of storage batteries; a heat sink, the heat sink is used to install the storage batteries and to dissipate heat released by the storage batteries, and the heat sink is located in the housing.

[0022] Furthermore, the power storage module further includes: a cooling water pipe, the cooling water pipe is attached to the heat dissipation frame and connected to the water inlet.

[0023] Compared with the prior art, the advantages and positive effects of the present invention are: by arranging an evaporation water tank on the outer shell, the water flowing out of the safety valve is collected in the evaporation water tank, and when in use, the evaporation water tank uses the heat generated by the charging and discharging module to heat the water in the evaporation water tank, so as to realize the treatment of the water flowing out of the safety valve by heating and evaporation, and there is no need to discharge the water flowing out of the safety valve into the room, so as to improve the user experience of the storage electric water heater.

[0024] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 One of the structural schematic diagrams of an electric water heater of the present invention;

[0027] Figure 2 for Figure 1 Distribution diagram of the internal components of the middle housing without the front panel;

[0028] Figure 3 A schematic diagram of the structure of an electric water heater of the present invention in accordance with an embodiment of the second;

[0029] Figure 4 for Figure 2 The distribution diagram of the internal components after removing the back plate from the middle shell;

[0030] Figure 5 This is one of the structural schematic diagrams of the power storage module in the electric water heater embodiment of the present invention;

[0031] Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle A area;

[0032] Figure 7 This is a second structural schematic diagram of the power storage module in the electric water heater embodiment of the present invention;

[0033] Figure 8 for Figure 7 A partial enlarged schematic diagram of the middle B area;

[0034] Fig. 9 It is a structural schematic diagram of the main frame in the embodiment of the electric water heater of the present invention;

[0035] Fig.10It is a structural schematic diagram of an electric heating module in an embodiment of an electric water heater of the present invention;

[0036] Fig.11 It is a cross-sectional view of an electric heating module in an embodiment of an electric water heater of the present invention;

[0037] Fig.12 It is a partial structural schematic diagram of an electric heating module in an embodiment of an electric water heater of the present invention;

[0038] Fig.13 It 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;

[0039] Fig.14 It is a structural schematic diagram of a first connecting frame in an embodiment of an electric water heater of the present invention;

[0040] Fig.15 It is a structural schematic diagram of the second connecting frame in the embodiment of the electric water heater of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0042] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Example

[0043] like Figure 1-Figure 4 As shown, the electric water heater of this embodiment includes: a shell 1, an electric heating module 2, a power storage module 3, a charge and discharge module 4 and a controller 5, wherein the electric heating module 2, the power storage module 3, the charge and discharge module 4 and the controller 5 are installed on the shell 1, and the shell 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 (for example: a tap water pipe) for introducing cold water, and the water outlet pipe 102 is used to output hot water.

[0044] During actual use, 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. The water transported to the electric heating module 2 from the external water supply source is quickly heated by the electric heating module 2 to achieve the purpose of instant water supply. Under normal circumstances, the water heater will be equipped with a temperature sensor for detecting the temperature and a flow sensor for detecting the water flow. The controller 5 controls the operation of the charging and discharging module 4 according to the user-set parameters and the signals detected by the relevant sensors.

[0045] The basic functions of each of the above modules are explained as follows: the electric heating module 2 generally includes a heating container and an electric heating component. The heating container has a water inlet and a water outlet. 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 electric energy to heat the water flowing in the heating container. The heated hot water is output from the water outlet of the heating container and transported to the outside through the water outlet pipe 102. The electric heating component can adopt electric heating devices such as electric heating tubes and electric heating films.

[0046] The power storage module 3 uses a plurality of storage batteries to store electric energy. The storage batteries can be common existing battery types, such as lithium batteries or nickel-cadmium batteries, etc. This embodiment does not limit the specific form of the storage batteries.

[0047] 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 mains to charge the battery as needed, while the battery discharging unit is connected to the electric heating component. The electric energy released by the battery is applied to the electric heating component through the battery discharging unit to power the electric heating component. The battery charging unit and the battery discharging unit can adopt the form of conventional battery charging circuit and battery discharging circuit, which is not limited here.

[0048] As the main control component, the controller 5 can control the operation of the electric water heater according to the command mode set by the user. 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 (English: Battery Management System, abbreviated as BMS), and the battery management system is used to monitor the battery. For example, the state of charge (State of Charge, i.e. SOC) of the power battery pack is accurately estimated, i.e. the remaining battery power, the voltage, temperature, current and other parameters of each battery are collected in real time during the charging and discharging process to prevent overcharging or over-discharging, and the single battery is balanced to charge so that each battery in the storage module reaches a balanced and consistent state. In addition, the controller 5 can also be configured with a display screen or a display touch screen for the user to view the operating status of the electric water heater. Example

[0049] Since the charging and discharging module 4 is arranged inside the housing 1, the charging and discharging module 4 will generate heat itself when controlling the charging or discharging of the power storage module 3. If the heat is accumulated inside the housing 1 and cannot be quickly released, the operating reliability of the charging and discharging module 4 will be affected due to the excessively high temperature inside the housing 1. For this reason, the housing 1 is also provided with an air inlet 121 and an air outlet 122. The air inlet 121 can introduce cold air from the outside into the housing 1, while the air outlet 122 can discharge hot air from the housing 1. At the same time, the electric water heater is also provided with a heat dissipation module 41, which is used to dissipate the heat released by the charging and discharging module 4. The charging and discharging module 4 is thermally connected to the heat dissipation module 41, and the heat dissipation module 41 is located on one side of the air inlet 121 and the air outlet 122.

[0050] Specifically, in actual use, when the charging and discharging module 4 charges or discharges the power storage module 3, the heat generated by the charging and discharging module 4 itself is transferred to the heat dissipation module 41, and the heat dissipation module 41 quickly absorbs the heat and uses the airflow flowing between the air inlet 121 and the air outlet 122 to dissipate the heat, so as to quickly 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 housing 1 through the heat dissipation module 41, it can ensure that the charging and discharging module 4 can operate reliably.

[0051] As a preferred embodiment, the heat dissipation module 41 includes: a heat dissipation substrate 411 and a plurality of heat dissipation fins 412. The heat dissipation substrate 411 is arranged on the charging and discharging module 4 and is used to absorb the heat released by the charging and discharging module 4; the heat dissipation fins 412 are arranged on the heat dissipation substrate 411. Specifically, the heat dissipation substrate 411 and the heat dissipation fins 412 are made of heat-conducting materials, for example, heat-conducting materials such as aluminum or copper can be used. The heat dissipation substrate 411 is arranged on the charging and discharging module 4 to increase the contact area with the charging and discharging module 4, thereby accelerating the heat conduction efficiency between the heat dissipation substrate 411 and the charging and discharging module 4. The heat released by the charging and discharging module 4 is quickly conducted to the heat dissipation substrate 411. On the one hand, the heat dissipation substrate 411 itself is used for heat dissipation, and on the other hand, the plurality of heat dissipation fins 412 on the heat dissipation substrate 411 can also be used to assist in heat dissipation.

[0052] The heat dissipation fins 412 are arranged along the direction of the air flow from the air inlet 121 to the air outlet 122. Based on the principle of rising hot air, preferably, the air outlet 122 is located above the air inlet 121, and the heat dissipation fins 412 are arranged longitudinally; an air guide plate 413 is also provided on the heat dissipation substrate 411, and the air guide plate 413 is located above the heat dissipation fins 412. The air guide plate 413 is used to guide the air flowing through the heat dissipation fins 412 to flow toward the air outlet 122. Specifically, the heat released by the charging and discharging module 4 is dissipated through the heat dissipation module 41, and the heat dissipation module 41 heats the air in the area between the air outlet 122 and the air inlet 121. After the air is heated, based on the principle of rising hot air, the hot air is output from the upper air outlet 122, and the external cold air is sucked into the housing 1 from the bottom air inlet 121. At the same time, in cooperation with the air guide plate 413 disposed above, the air guide plate 413 is utilized to guide the hot air to flow toward the air outlet 122 so that the hot air can be output smoothly.

[0053] In order to more effectively accelerate the air flow speed to improve the heat dissipation efficiency, in some embodiments, two relatively arranged air guide plates 413 are further provided on the heat dissipation substrate 411, and the two air guide plates 413 are arranged close to each other from bottom to top, and an air outlet portion is formed between the upper ends of the two air guide plates 413. A fan 10 is also provided on the heat dissipation substrate 411, and the fan 10 is located above the air outlet portion and faces the air outlet 122. Specifically, after the fan 10 is powered on and operated, the fan 10 can accelerate the gas flow speed in the housing 1, and the fast-flowing airflow can more efficiently take away the heat released by the heat dissipation module 41. Since the fan 10 is located at the air outlet portion formed between the two air guide plates 413, under the action of the fan 10, the hot air between the heat dissipation fins 412 can be quickly sucked in and discharged from the air outlet 122, thereby maximizing the heat dissipation efficiency.

[0054] Similarly, in some embodiments, a suction fan for sucking air into the housing 1 may be provided on the air inlet 121; and / or a blower for blowing air to the outside of the housing 1 may be provided on the air outlet 122. The suction fan and / or the blower are used to accelerate the air flow speed between the air inlet 121 and the air outlet 122, thereby accelerating the heat dissipation efficiency of the heat dissipation module 41.

[0055] Typically, the housing 1 generally includes a front panel 11, a frame 13 and a back panel 12, wherein 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. An air inlet 121 and an air outlet 122 are provided on the back panel 12. Specifically, the air inlet 121 and the air outlet 122 can be formed by punching the back panel 12. Example

[0056] The water supply pipeline formed in the electric water heater provided by the present invention is usually equipped with a safety valve 6. At the same time, the electric heating module 2 is also connected in series in the water pipeline formed in the electric water heater. The cold water introduced by the water inlet pipe 101 enters the water pipeline and flows. The cold water enters the electric heating module 2 and is heated to form hot water, which is then transported to the water outlet pipe 102 through the water pipeline. In the process of heating water by the electric heating module 2, when the water in the water pipeline is not used by the user, the pressure in the water pipeline increases, so that the water is discharged and the pressure is reduced through the safety valve 6.

[0057] In order to prevent the water discharged from the safety valve 6 from dripping into the room at will, the water discharged from the safety valve 6 can be collected and processed in a centralized manner. The electric water heater is also provided with an evaporation tank 62, which is used to collect the water discharged from the safety valve 6 and heat and evaporate it using the heat released by the charging and discharging module 4; wherein the evaporation tank 62 is arranged in the housing 1. Specifically, in actual use, when the safety valve 6 flows water outward, the water flowing out of the safety valve 6 is collected by the evaporation tank 62. At the same time, the heat released by the charging and discharging module 4 is transferred to the evaporation tank 62, thereby heating the water in the evaporation tank 62 to achieve the requirement of zero discharge of water flowing out of the safety valve 6.

[0058] As for the method of using the charge and discharge module 4 to heat the water in the evaporation water tank 62, a heat dissipation module 41 can be configured on the charge and discharge module 4, wherein the heat dissipation module 41 transfers the heat released by the charge and discharge module 4 to the evaporation water tank 62 to heat the water for evaporation. The specific structural form of the heat dissipation module 41 can refer to the description of the heat dissipation module 41 in the second embodiment, which will not be repeated here.

[0059] In some embodiments, the heat dissipation module 41 is located above the evaporation water tank 62, and one end of the heat dissipation module 41 is located in the evaporation water tank 62. In this way, the lower end of the heat dissipation module 41 is located in the evaporation water tank 62, and the water flowing out of the safety valve 6 enters the evaporation water tank 62 and immerses the lower end of the heat dissipation module 41, so as to be heated and evaporated by the heat dissipation module 41.

[0060] As for the specific installation position of the evaporation water tank 62, preferably, the evaporation water tank 62 can be arranged on one side of the air inlet 121, and the upper edge of the evaporation water tank 62 is flush with or slightly higher than the air inlet 121. In some extreme cases, when the electric water heater fails and the safety valve 6 has a large amount of water outflow, the water flowing from the safety valve 6 into the evaporation water tank 62 does not have time to evaporate, causing the water to overflow from the evaporation water tank 62. The overflowed water can flow out through the air inlet 121 on one side of the evaporation water tank 62, thereby improving the reliability of the electric water heater.

[0061] In some embodiments, a water pipe 61 may be further provided between the drain port of the safety valve 6 and the evaporation water tank 62 , and the water flowing out of the safety valve 6 enters the evaporation water tank 62 through the water pipe 61 . Example

[0062] Based on the above-mentioned embodiments 1 to 3, optionally, in order to meet the requirements of battery heat dissipation, the reliability and safety of the battery can be improved. Figure 5-Figure 9 As shown, the power storage module 3 includes: a plurality of storage batteries 31 and a heat sink 32, wherein the heat sink 32 is used to install the storage batteries 31 and to dissipate the heat released by the storage batteries 31; the storage batteries 31 are thermally connected to the heat sink 32. Specifically, the heat sink 32 is used to install and fix a plurality of storage batteries 31 on the one hand, so as to facilitate the later unified assembly, and on the other hand, the heat sink 32 has the function of dissipating the heat released by the storage batteries 31, and the heat sink 32 can be made of a heat-conducting material, such as aluminum, copper or other metals with good heat conductivity.

[0063] In order to improve the heat transfer efficiency between the battery 31 and the heat sink 32, the battery 31 is adhered to the heat sink 32 by means of thermal conductive adhesive. Specifically, when the battery 31 is assembled on the heat sink 32, the thermal conductive adhesive is used to bond the battery 31 to the heat sink 32. On the one hand, the thermal conductive adhesive can conveniently and quickly assemble the battery 31 to the heat sink 32. On the other hand, the thermal conductive adhesive can quickly conduct heat to improve the heat transfer efficiency of the battery 31.

[0064] In order to increase the contact area, the battery 31 is flat as a whole, and the back of the battery 31 is attached to the heat sink 32 through thermal conductive adhesive. Preferably, in order to more reliably install the battery 31, the heat sink 32 includes: a main frame 321, a mounting groove 3211 is provided on the main frame 321, and the battery 31 is installed in the corresponding mounting groove 3211 through thermal conductive adhesive. The mounting groove 3211 can independently install a single battery 31. At the same time, the battery 31 can be limited in the mounting groove 3211 by the bottom and both sides of the mounting groove 3211 to improve the assembly reliability. Among them, a positioning plate 3212 is also provided in the mounting groove 3211. The positioning plate 3212 is used to position the end face of the battery 31 with two electrodes. The positioning plate 3212 is located between the two electrodes and can limit the battery 31 in the up and down and left and right directions to further improve the assembly reliability.

[0065] In addition, in order to further improve the assembly reliability of the battery 31 and avoid the battery 31 from falling off during transportation, a connecting frame is also provided on the main frame 321. The connecting frame is clamped on the main frame 321, and the connecting frame will be close to the front of the battery 31, so that the battery 31 is sandwiched between the connecting frame and the main frame 321. The structural form of the connecting frame varies according to the different assembly methods of the battery 31 and the main frame 321. Specifically, when the battery 31 is installed on the front or back of the main frame 321, a plurality of first card interfaces are also provided on the main frame 321; the heat dissipation frame 32 also includes: a first connecting frame, and a plurality of first card connectors are provided on the first connecting frame; wherein the first card connector is clamped in the first card interface, and the battery 31 is sandwiched between the main frame 321 and the first connecting frame. Specifically, in the case of installing the battery 31 on a surface of the main frame 321, after the battery 31 is bonded to the main frame 321 by means of thermally conductive adhesive, the first snap-fit ​​connector is directly snapped into the first snap interface of the main frame 321 to complete the assembly of the first connecting frame. The battery 31 is then clamped between the first connecting frame and the main frame 321, thereby ensuring that the battery 31 will not detach from the mounting groove 3211. Similarly, in the case where the front and back sides of the main frame 321 are both provided with batteries 31, a plurality of through holes 3210 are further provided on the main frame 321; the heat dissipation frame 32 includes: a second connecting frame 322, on which a plurality of second card interfaces (not marked) are provided; a third connecting frame 323, on which a plurality of second card connectors 3231 are provided; wherein the main frame 321 is located between the second connecting frame 322 and the third connecting frame 323, the second card connector 3231 passes through the corresponding through holes 3210 and is carded in the second card interface, part of the batteries 31 are clamped between the main frame 321 and the second connecting frame 322, and the remaining part of the batteries 31 are clamped between the main frame 321 and the third connecting frame 323. Specifically, after the battery 31 is correspondingly attached to the front and back of the main frame 321 through the thermal conductive adhesive, the second snap-in connector 3231 passes through the through hole 3210 from one side of the main frame 321 and is snapped into the second snap interface. At this time, the second connecting frame 322 and the third connecting frame 323 are both tightly attached to the front of the battery 31, thereby fastening the battery 31.

[0066] For the first snap-in connector and the second snap-in connector 3231 recorded above, in order to realize the snap-in function, taking the second snap-in connector 3231 as an example, a claw can be formed at the snap-in end of the second snap-in connector 3231, and the claw is snapped into the second snap interface to realize the snap connection; or, the second snap-in connector 3231 is a plate-like structure as a whole, and the free ends of the plate-like structure are respectively provided with raised elastic cards 3232, and the elastic cards 3232 pass through the second snap interface and are snapped on the edge of the second snap interface.

[0067] Furthermore, in order to dissipate heat from the battery 31 more effectively, the power storage module 3 further includes a heat collection component, which is used to collect the heat released by the battery 31 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, and part of the heat conducted by the heat dissipation frame 32 is naturally dissipated, and the remaining heat is absorbed by the heat collection component, which adopts an active heat absorption method and can absorb heat more quickly and efficiently.

[0068] 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 attached to the main frame 321 and connected to the water inlet. Specifically, when the electric water heater is turned on 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. The temperature of the cold water flowing through the cooling water pipe 33 is relatively low, and the heat generated when the battery 31 is discharged will heat the main frame 321. The high temperature difference can accelerate the heat transfer efficiency between the cold water and the main frame 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. The cold water is heated and heated by the heat released by the battery 31, thereby reducing the power consumption of the electric heating module 2, reducing energy consumption, and improving the output rate and output of hot water. The cooling water pipe 33 is arranged on the main frame 321 in a reciprocating bending manner, and the whole is a serpentine coil structure, so as to increase the thermal contact area between the main frame 321 and accelerate the heat dissipation efficiency.

[0069] In order to facilitate the installation of the cooling water pipe 33, a pipe groove 3213 matching the extension direction of the cooling water pipe 33 can be formed on the front or back of the main frame 321, and the cooling water pipe 33 is located in the pipe groove 3213. In this way, the contact area between the cooling water pipe 33 and the main frame 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 without additionally increasing the overall thickness of the storage module 3 to ensure a light and thin design. Alternatively, a sandwich structure can be formed in the main frame 321, and the cooling water pipe 33 is located in the sandwich structure. The cooling water pipe 33 can evenly absorb the heat released by the storage battery 31 on both sides of the main frame 321 in the sandwich structure, and the heat collection component can also include a phase change heat storage material, which is filled in the sandwich structure. The phase change heat storage material can effectively fill the entire sandwich structure to maximize the heat dissipation efficiency. Moreover, 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. In this way, during the startup phase of the electric water heater, the heat released by the phase change heat storage material can be used to preheat the water in the cooling water pipe 33 to achieve the effect of quickly outputting hot water.

[0070] In addition, there are various ways to connect the battery 31. Depending on the different power supply voltages output by the battery module 3, the battery 31 can be connected to corresponding circuits. For example, the battery module 3 can output high voltage of 150V-222V, or the battery module 3 can output low voltage of 36V-42V.

[0071] In order to accurately control the outlet water temperature, the electric water heater of this embodiment also 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 water inlet temperature of the water inlet; a second temperature sensor, which is used to detect the outlet water temperature of the water outlet; and a controller 5 which is used to control the operation of the charge and discharge module 4 according to the user-set parameters and the signals detected by the flow sensor, the first temperature sensor and the second temperature sensor.

[0072] Specifically, the flow sensor can be used to detect the water output of the electric water heater, the first temperature sensor detects the temperature of the incoming cold water, and the second temperature sensor detects the output hot water temperature. The controller uses the detected water flow and water temperature to accurately control the operation of the charging and discharging module 4 according to the required water output temperature value set by the user to adjust the power supply power of the storage module 3.

[0073] The specific control method is as follows: after the user sets the outlet water temperature, when the flow sensor detects the water flow, the heat required for heating the water is calculated according to the water inlet temperature detected by the first temperature sensor and the water flow detected by the flow sensor, 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 water inlet temperature, water flow and required outlet water temperature information are known, the required heat can be calculated according to the temperature difference between the water inlet temperature and the user-set temperature and the water flow value, and the required heating power can be 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 outlet water temperature value detected by the second temperature sensor, so that the power storage module is more reasonably discharged for heating, and the temperature difference of the outlet water temperature is within the range of ±1°C, thereby effectively improving the user experience.

[0074] 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 water outlet temperature set by the user, the discharge power of the power storage module is increased; if the temperature value detected by the second temperature sensor is higher than the water outlet temperature set by the user, the discharge power of the power storage module is reduced. Preferably, in the case of using an external power supply discharge module 6 for auxiliary power supply, when the battery is at maximum discharge power, if the temperature value detected by the second temperature sensor is lower than the water outlet temperature set by the user, the external power supply discharge module is started to assist in supplying power to the electric heating module to heat water.

[0075] In a preferred embodiment, in order to meet the requirement of water-electricity separation, the reliability and safety of the battery can be improved. Figure 1-Figure 2 As shown, partitions 103 and / or partitions 104 are arranged in the outer shell 1 to form a plurality of installation cavities. For example, independent installation cavities can be configured for the electric heating module 2, the power storage module 3 and the charge and discharge module 4 respectively, and the controller 5 can be installed in the same installation cavity as the charge and discharge module 4.

[0076] Take the case where a partition 103 and a partition 104 are provided in the housing 1 to form three installation cavities as an example. The electric heating module 2 is provided in the first installation cavity, the charging and discharging module 4 is provided in the second installation cavity, and the power storage module 3 is provided in the second installation cavity. The electric heating module 2 is used to heat water and is placed independently in the first installation cavity, while the charging and discharging module 4 and the power storage module 3 are arranged in isolation from the electric heating module 2. During use, even if water leaks when the electric heating module 2 heats water, the water leaked from the electric heating module 2 will only flow into the first installation cavity, and will not affect the charging and discharging module 4 and the power storage module 3 in the second installation cavity, thereby avoiding the situation where the charging and discharging module 4 or the power storage module 3 is soaked in water and short-circuited.

[0077] In order to meet the requirements of circuit routing and to supply power to the electric heating module 2, wiring holes (not marked) are provided on the partitions 103 and 104, and the electric heating module 2 is connected to the charging and discharging module 4 through a power supply cable (not shown), and the power supply cable passes through the wiring holes. In the case where the cooling water pipe 33 is used to dissipate heat for the power storage module 3, mounting holes (not marked) are provided on the partitions 103 and 104, and the cooling water pipe 33 passes through the mounting holes. The connection part of the cooling water pipe 33 and the water inlet pipe 101 is located in the first installation cavity. Similarly, the connection part of the cooling water pipe 33 and the electric heating module 2 is also located in the first installation cavity, while the part of the cooling water pipe 33 located in the second installation cavity is a complete pipe body, thereby avoiding water leakage at the connection part of the cooling water pipe 33 to affect the charging and discharging module 4 and the power storage module 3 in the second installation cavity.

[0078] In addition, the electric heating module 2, the power storage module 3 and the charge-discharge module 4 are respectively configured with independent installation cavities, which can further avoid the heat generated by the relevant components in the housing 1 from affecting each other. Among them, the controller 5 and the charge-discharge module 4 can be installed in the same installation cavity.

[0079] In some embodiments, in order to reduce the temperature fluctuation range of the output hot water during the process of heating water by the electric heating module 2. Figure 10-12As shown, 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 arranged in the heating container 21, or an electric heating film 22 arranged outside the heating container 21, and the electric heating film 22 is used as an example for explanation. The heating container 21 includes: a base 211, an inner tube 212, an outer tube 213 and a plug 214, and a water inlet 2111 and a water outlet 2112 are arranged on the base 211; the inner tube 212 is installed on the base 211, and one tube opening of the inner tube 212 is connected to the water inlet 2111; the outer tube 213 is sleeved on the outside of the inner tube 212 and installed on the base 211, and one tube opening of the outer tube 213 is connected to the water outlet 2112; the plug 214 seals and blocks the other tube opening of the outer tube 213; and multiple electric heating films 22 can be arranged outside the outer tube 213 along the axial direction.

[0080] Specifically, in actual use, water enters the outer tube 213 through the water inlet 2111 of the base 211. When the water flows in the outer tube 213, the electric heating film 22 heats the water outside the outer tube 213. The water flows along the outer tube 213 to form hot water and enters the inner tube 212. The water flowing through the inner tube 212 is also wrapped by the water flowing in the outer tube 213. In this way, the heat emitted by the water flowing in the inner tube 212 will be absorbed by the water flowing in the outer tube 213, effectively reducing heat loss and improving heating efficiency. Among them, the water output from the inner tube 212 is not directly heated by the electric heating film 22, which can effectively reduce the fluctuation of the output water temperature.

[0081] Preferably, a support plate 215 is further provided between the inner tube 212 and the outer tube 213. The inner tube 212 can be stably installed in the outer tube 213 by means of the support plate 215, ensuring that the thickness of the water flow interlayer formed between the inner tube 212 and the outer tube 213 is uniform; and the support plate 215 can be an annular structure, the support plate 215 is sleeved on the outside of the inner tube 212, and the outer edge of the support plate 215 is against the inner tube wall of the outer tube 213. A plurality of support plates 215 can be arranged along the axial direction of the inner tube 212 to effectively ensure that the distance between the inner tube 212 and the outer tube 213 remains unchanged, or the support plate 215 is in a spiral structure as a whole, the support plate 215 is spirally arranged around the outside of the inner tube 212, and the outer edge of the support plate 215 is against the inner tube wall of the outer tube 213.

[0082] 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 tube 213 to destroy the boundary layer of the water flow, so as to quickly promote the mixing of cold and hot water and further reduce the fluctuation amplitude of the outlet water temperature. Specifically, for the support plate 215 with an annular structure, a plurality of water holes (not marked) are provided on the support plate 215. The water flowing in the outer tube 213 is disturbed by the water outlet to achieve the purpose of mixing the cold and hot water. The support plate 215 can be arranged obliquely relative to the axis of the inner tube 212 so that the support plate 215 can further guide the water flow to cause disturbance. As for the support plate 215 with a spiral structure, it itself can guide the water flow to rotate to achieve the purpose of disturbance, and the surface of the support plate 215 is provided with a hollow structure, which can more effectively increase the disturbance effect.

[0083] Under the turbulent effect of the support plate 215, the phenomenon of film boiling of the water in the outer tube 213 due to the excessively high 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 insulation layer is also provided on the outside of the heating container 21. The insulation layer is used to wrap the heating container 21 as a whole on the outside to reduce the heat loss generated by the electric heating film 22, improve the utilization rate of thermal energy and reduce energy consumption. At the same time, a gap is formed between the pipe opening of the inner tube 212 and the plug 214 relative to the plug 214, which can effectively reduce the water resistance caused by the change in the flow direction of the water flow.

[0084] In order to achieve the demand for lightweight installation, Figure 13-Figure 15 As shown, the housing 1 is also provided with a wall mount 14 for mounting on a wall, and the wall mount 14 includes a first connecting frame 141 and a second connecting frame 142. In order to save installation space, the back of the housing 1 is provided with an installation space (not marked) extending toward the inside of the housing 1; wherein, the first connecting frame 141 is fixed in the installation space, and the second connecting frame 142 is used to be fixed on the wall to hang the first connecting frame 141; and in actual use, the second connecting frame 142 is fixed to the wall by means of bolts or the like, and the housing 1 is hung on the second connecting frame 142 by means of the first connecting frame 141. At this time, part or all of the second connecting frame 142 will be located in the installation space.

[0085] Specifically, since an installation space is formed on the housing 1 and extends toward the interior thereof, the installation space is used to install and fix the first connection frame 141, so that the first connection frame 141 can be hidden in the housing 1, thereby avoiding the first connection frame 141 being placed outside the housing 1 and increasing the thickness. When the housing 1 needs to be suspended, the first connection frame 141 is suspended on the second connection frame 142, and at this time, part or all of the second connection frame 142 will extend into the installation space, so that the thickness of the housing 1 can be used to accommodate the second connection frame 142. During actual use, when the first connecting frame 141 and the second connecting frame 142 are well connected, the second connecting frame 142 can be completely located in the installation space. Due to factors such as the installation level of the operator and the wall installation environment in the user's home, the part of the second connecting frame 142 that is close to the wall may be exposed outside the installation space. However, on the whole, after the outer shell 1 is hung on the wall by the wall bracket 14, the space occupied by the outer shell 1 is basically the same as its thickness. In this way, the extra space occupied by the wall bracket 14 can be effectively reduced.

[0086] Among them, the first connecting frame 141 is provided with a first hanging part, and the second connecting frame 142 is provided with a second hanging part cooperating with the first hanging part, and the first hanging part is hung on the second hanging part. Specifically, the specific manifestation entities of the first hanging part and the second hanging part have various structural forms. For example, the first hanging part is a hook arranged on the first connecting frame 141, and the second hanging part is a hanging hole arranged on the second connecting frame 142, and the hook is hung in the hanging hole. Similarly, in order to improve the connection reliability and installation convenience, the first hanging part is a hanging plate 1411 extending downwardly arranged on the first connecting frame 141, and the second hanging part is a support plate 1421 extending upwardly arranged on the second connecting frame 142. When installing the suspension housing 1, the hanging plate 1411 is inserted into the area formed between the support 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 formed integrally on the first connecting frame 141, and similarly, the supporting plate 1421 can be formed integrally on the second connecting frame 142. Specifically, the first connecting frame 141 and the second connecting frame 142 are respectively long strip structures as a whole. Taking the first connecting frame 141 as an example, the first connecting frame 141 can be formed directly on the first connecting frame 141 by bending and stamping a plate, so that after the first connecting frame 141 is installed in the installation space, the first connecting frame 141 as a whole forms an inverted U-shaped structure or an inverted J-shaped structure in longitudinal section. Correspondingly, the first connecting frame 141 as a whole forms a U-shaped structure or a J-shaped structure in longitudinal section.

[0087] Preferably, in order to facilitate the operator to install the housing 1 and enable the housing 1 to be maximally close to the wall to reduce the exposure of the second connecting frame 142, the support plate 1421 is bent upward and extended from the lower part of the second connecting frame 142, and the support plate 1421 is inclined to extend upward from the side facing away from the main body of the second connecting frame 142. In this way, during the actual installation, the housing 1 is lifted so that the hanging plate 1411 is higher than the upper edge of the support plate 1421, and the hanging plate 1411 is inserted between the support plate 1421 and the second connecting frame 142 and slides downward along the support plate 1421. By utilizing the inclined guidance of the support plate 1421, during the descent of the housing 1, the hanging plate 1411 drives the housing 1 to gradually move closer to the second connecting frame 142, and finally, the housing 1 can be close to the wall and the second connecting frame 142 can enter the installation space.

[0088] In addition, the installation space on the housing 1 can be set in the top area of ​​the housing 1, that is, the installation space is formed at the position where the back plate 12 and the top of the frame 13 are connected, and correspondingly, the first connecting frame 141 is located at the top of the housing 1. The front panel 11 can be provided with a flange structure around to wrap around the frame 12, for example: the upper edge of the front panel 11 forms a first flange structure 111, the first flange structure 111 can extend to the back of the housing 1 and be flush with the back plate 12, and the first flange structure 111 is used to cover the first connecting frame 141 in the installation space to optimize the appearance effect. At the same time, the two side edges of the front panel 11 respectively form a second flange structure 112, which can extend to the back of the shell 1 and be flush with the back plate 12; the lower edge of the front panel 11 forms a third flange structure 113, and the third flange structure 113 is attached to the bottom of the frame 13. In this way, the front panel 11 is a cover-type structure as a whole. The front panel 11 wraps around the frame 13 through the flange structure, making the overall appearance of the shell 1 more beautiful.

[0089] Furthermore, a positioning plug plate 1412 extending downward is provided on the hanging plate 1411, and a positioning hole 1422 is provided on the second connecting frame 142, and the positioning plug plate 1412 is inserted into the positioning hole 1422. Specifically, after the first connecting frame 141 is hung on the second connecting frame 142, the positioning plug plate 1412 is inserted into the corresponding positioning hole 1422 to limit the lateral movement of the first connecting frame 141 on the second connecting frame 142, so as to improve the installation reliability. In addition, since the second connecting frame 142 is usually installed on the wall by bolt fixing or the like, a plurality of mounting holes 1423 for installing wall-hanging bolts are provided on the back of the second connecting frame 142, and a first notch 1424 matching the mounting hole is provided on the support plate 1421, and the first notch 1424 is arranged opposite to the corresponding mounting hole 1423; in this way, when the second connecting frame 142 is installed, the bolt can pass through the first notch 1424 and the mounting hole 1423 to be connected to the wall, and the bolt passes through the first notch 1424 to avoid the support plate 1421 to interfere with the installation of the bolt. At the same time, the first connecting frame 141 is provided with a second notch 1413 that cooperates with the first notch 1424. After the second connecting frame 142 is fixedly installed on the wall, the end of the bolt will be exposed outside the second connecting frame 142. 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 notch 1413. The hanging plate 1411 can avoid the end of the bolt through the second notch 1413 to improve the convenience of installation.

[0090] In addition, for the power storage module 3, since a number of batteries 31 are used, the overall weight of the power storage module 3 is heavier, and the power storage module 3 can be directly connected to the first connecting frame 141. The first connecting frame 141 serves as a suspension member and also as a load-bearing member. The weight of the power storage module 3 is borne by the first connecting frame 141, and a thinner outer shell 1 can be used, and only the structural strength of the first connecting frame 141 needs to be enhanced. In this way, the use of materials can be saved, which is beneficial to reducing manufacturing costs.

[0091] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to replace some of the technical features therein by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A storage electric water heater, characterized in that: include: A housing, wherein a water pipeline for supplying water is arranged in the housing, and a safety valve is provided on the water pipeline; An electric heating module, the electric heating module is connected to the water pipeline, the electric heating module is configured with a water inlet and a water outlet, the electric heating module is used to heat the cold water input from the water inlet and output hot water from the water outlet; A power storage module, wherein the power storage module is used to store electric energy; A charging and discharging module, which is used to control the charging of the power storage module and is also used to control the discharging of the power storage module to supply power to the electric heating module; An evaporation water tank, which is used to collect water discharged from the safety valve and heat and evaporate it using the heat released by the charging and discharging module; Wherein, the electric heating module, the power storage module, the charging and discharging module and the evaporation water tank are all arranged in the housing; The power storage module comprises: Multiple batteries; A heat sink, which is used to mount the battery and dissipate heat released by the battery, and is located in the housing; In addition, the heat dissipation frame includes a main frame body, the main frame body is provided with a mounting groove, the battery is installed in the corresponding mounting groove through a thermal conductive adhesive, and the battery can be limited by the bottom and two sides of the mounting groove; A positioning plate is also provided in the installation groove, and the positioning plate is used to position the end surface of the battery equipped with two electrodes; The main frame body is also provided with a plurality of through holes; the heat dissipation frame includes a second connecting frame and a third connecting frame, the second connecting frame is provided with a plurality of second card interfaces, the third connecting frame is provided with a plurality of second card connecting members, the main frame body is located between the second connecting frame and the third connecting frame, and the second card connecting members are inserted into the second card interfaces through corresponding through holes.

2. The electric storage water heater according to claim 1, characterized in that: A water delivery pipe is arranged between the drain outlet of the safety valve and the evaporation water tank.

3. The electric storage water heater according to claim 1, characterized in that: It also includes a heat dissipation module, which is used to absorb the heat released by the charging and discharging module and heat the water in the evaporation water tank.

4. The electric storage water heater according to claim 3, characterized in that: The charging and discharging module is thermally connected to the heat dissipation module. The heat dissipation module is located above the evaporation water tank, and one end of the heat dissipation module is located in the evaporation water tank.

5. The electric storage water heater according to claim 3, characterized in that: The shell is provided with an air inlet and an air outlet; the heat dissipation module is located on one side of the air inlet and the air outlet.

6. The electric storage water heater according to claim 5, characterized in that: The heat dissipation module comprises: A heat dissipation substrate, which is disposed on the charge and discharge module and is used to absorb heat released by the charge and discharge module; A plurality of heat dissipation fins, wherein the heat dissipation fins are arranged on the heat dissipation substrate; Wherein, the heat dissipation substrate and / or the heat dissipation fins extend into the evaporation water tank.

7. The electric storage water heater according to claim 6, characterized in that: The air outlet is located above the air inlet, and the heat dissipation fins are arranged longitudinally; an air guide plate is also provided on the heat dissipation substrate, and the air guide plate is located above the heat dissipation fins. The air guide plate is used to guide the air flowing through the heat dissipation fins to flow toward the air outlet.

8. The electric storage water heater according to claim 7, characterized in that: The heat dissipation substrate is also provided with two oppositely arranged air guide plates, which are arranged close to each other and inclined from bottom to top, and an air outlet is formed between the upper ends of the two air guide plates. The heat dissipation substrate is also provided with a fan, which is located above the air outlet and faces the air outlet.

9. The electric storage water heater according to claim 1, characterized in that: The power storage module further includes: A cooling water pipe is placed against the heat sink and connected to the water inlet.

Images