Energy storage electric appliance and power supply system

Abstract

The utility model relates to the technical field of energy storage, and provides an energy storage electric appliance and a power supply system. The energy storage electric appliance comprises an electric appliance body and an energy storage battery. The electric appliance body has an energy storage chamber. A first connector configured to be connected with a mains supply power grid and a second connector configured to be connected with a load circuit are formed on the outer surface of the electric appliance body. The energy storage battery is installed in the energy storage chamber. The input end of the energy storage battery is electrically connected with the first connector and used for charging the energy storage battery through a mains supply power grid. The output end of the energy storage battery is electrically connected with the electric appliance body and the second connector and used for supplying power to the electric appliance body and the load circuit. Therefore, based on the built-in energy storage battery and the electric appliance body, the energy storage battery does not occupy indoor space any more, the usable area of a house can be increased, the energy storage battery can be carried and installed along with the electric appliance body at the same time, the installation cost is reduced, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of energy storage technology, specifically to energy storage electrical appliances and power supply systems. Background Technology

[0002] Energy storage products can serve as backup power, providing electricity to the entire house during power outages, ensuring power supply and improving power stability. However, in related technologies, energy storage products are typically sold separately. Their installation not only occupies indoor space but also requires drilling holes in the wall for reliable mounting. This makes energy storage products inconvenient to install and also takes up indoor space. Utility Model Content

[0003] The present invention provides an energy storage appliance and power supply system, which can install the energy storage battery inside the appliance body, thereby improving the technical problem of energy storage products occupying indoor space.

[0004] In a first aspect, embodiments of the present invention provide an energy storage electrical appliance, comprising:

[0005] An electrical appliance body has an energy storage chamber, and the outer surface of the electrical appliance body has a first connector configured to connect to the mains power grid and a second connector configured to connect to the load circuit.

[0006] An energy storage battery is installed in the energy storage chamber. The input terminal of the energy storage battery is electrically connected to the first connector for charging the energy storage battery through the mains power grid. The output terminal of the energy storage battery is electrically connected to the electrical appliance body and the second connector for supplying power to the electrical appliance body and the load circuit.

[0007] In one embodiment, the energy storage device further includes:

[0008] A conversion module is installed in the energy storage room. The conversion module is electrically connected between the first connector and the input terminal of the energy storage battery. It is used to convert the AC power from the mains grid into DC power and deliver it to the energy storage battery.

[0009] In one embodiment, a third connector is further formed on the outer surface of the electrical appliance body, the third connector being electrically connected to the input terminal of the energy storage battery, and the energy storage appliance further includes:

[0010] The photovoltaic mechanism is electrically connected to the third connector and is used to supply direct current to the energy storage battery.

[0011] In one embodiment, the outer surface of the electrical appliance body is further formed with a fourth connector configured to connect to the mains power grid. The conversion module is also electrically connected between the output terminal of the energy storage battery and the fourth connector, for converting the DC power stored in the energy storage battery into AC power and transmitting it to the mains power grid.

[0012] In one embodiment, the electrical appliance body has a refrigeration mechanism, the energy storage chamber is provided with an energy storage evaporator, and the refrigeration mechanism is connected to the energy storage evaporator for supplying low-temperature and low-pressure liquid refrigerant to the energy storage evaporator.

[0013] In one embodiment, the energy storage chamber is provided with a first partition, which is used to divide the energy storage chamber into a working chamber and a cooling chamber. The first partition is configured with an air inlet and an air return outlet for connecting the working chamber and the cooling chamber. The energy storage battery is located in the working chamber, and the energy storage evaporator is located in the cooling chamber.

[0014] In one embodiment, a fan is provided on the first partition at the air inlet and / or the air return outlet.

[0015] In one embodiment, the energy storage chamber is provided with a second partition, which divides the working chamber into a storage chamber and a return chamber. The second partition is provided with a vent hole that connects the storage chamber and the return chamber. The energy storage battery is located in the storage chamber, the air inlet connects the storage chamber and the cooling chamber, and the air return outlet connects the return chamber and the cooling chamber.

[0016] In one embodiment, the appliance body includes a refrigerator, and the appliance body further includes a freezer compartment and a refrigerator compartment, the freezer compartment, the refrigerator compartment, and the energy storage compartment being stacked sequentially from bottom to top, and the refrigeration mechanism includes:

[0017] compressor;

[0018] A condenser, the input of which is connected to the output of the compressor;

[0019] A throttling device, the input end of which is connected to the output end of the condenser;

[0020] The freezer compartment is equipped with a freezer evaporator, the refrigerator compartment is equipped with a refrigerator evaporator, the freezer evaporator is connected between the output end of the throttling device and the input end of the compressor, the refrigerator evaporator is connected between the output end of the throttling device and the input end of the compressor, and the energy storage evaporator is connected between the output end of the throttling device and the input end of the compressor.

[0021] In one embodiment, the energy storage battery includes a battery module and a battery management system, the battery management system being electrically connected to the battery module, wherein the conversion module is integrated into the battery management system, or the conversion module is integrated into the battery module.

[0022] In one embodiment, the battery module includes at least two spaced-apart individual cells, with a support member between each pair of adjacent individual cells. The support member forms a flow channel, which is configured as a path for the flow of cold air.

[0023] In one embodiment, the energy storage chamber is provided with a second partition, which divides the working chamber of the energy storage chamber into a storage chamber and a return chamber. The second partition is provided with vent holes that connect the storage chamber and the return chamber, and the vent holes correspond one-to-one with the flow channels.

[0024] Secondly, embodiments of this utility model provide a power supply system, comprising:

[0025] Load circuit;

[0026] The load is electrically connected to the load circuit.

[0027] As mentioned above, energy storage appliances;

[0028] The energy storage battery is electrically connected to the load circuit via the second connector.

[0029] The beneficial effects of the embodiments of this utility model are as follows:

[0030] In this embodiment of the invention, an energy storage chamber is constructed within the appliance body to house the energy storage battery. Because the energy storage battery is built-in, it no longer occupies indoor space, increasing the usable floor area of ​​the house. Furthermore, it can be transported and installed simultaneously with the appliance body, reducing installation costs and improving installation efficiency. The mains power grid can charge the energy storage battery through a first connector, allowing the battery to store electrical energy for backup or for direct output. The energy storage battery can directly supply power to the appliance body or supply power to the load circuit through a second connector, enabling the appliance body and other loads to consume electricity. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of the energy storage device provided in an embodiment of this utility model;

[0033] Figure 2 This is a schematic diagram of the electrical transmission between the electrical appliance body, the mains power grid, and the load circuit provided in an embodiment of this utility model;

[0034] Figure 3This is a schematic diagram of the electrical transmission of the energy storage battery, conversion module, mains power grid and load circuit provided in an embodiment of this utility model;

[0035] Figure 4 This is a schematic diagram of the electrical transmission between the electrical body, the photovoltaic mechanism, the mains power grid, and the load circuit provided in an embodiment of this utility model.

[0036] Figure 5 This is a schematic diagram of the structure of the first connector, second connector, third connector and fourth connector on the electrical body provided in the embodiment of this utility model;

[0037] Figure 6 This is a schematic diagram of the structure of the energy storage battery provided in an embodiment of this utility model;

[0038] Figure 7 This is a schematic diagram of the refrigeration circuit provided in an embodiment of the present invention;

[0039] Figure 8 This is one of the cross-sectional views of the energy storage chamber of the electrical body provided in the embodiments of this utility model;

[0040] Figure 9 This is a second cross-sectional view of the energy storage chamber of the electrical body provided in an embodiment of this utility model.

[0041] Figure label:

[0042] 10-Electrical body, 110-Energy storage chamber, 1110-Energy storage evaporator, 1120-Working chamber, 1130-Refrigeration chamber, 1140-Storage chamber, 1150-Return chamber, 120-First connector, 130-Second connector, 140-Third connector, 150-Fourth connector, 160-Freezing chamber, 1610-Freezing evaporator, 170-Refrigeration chamber, 1710-Refrigeration evaporator, 20-Energy storage battery, 210-Battery module, 220-Single cell, 230-Support component, 240-Flow channel, 250-End plate, 30-Conversion module, 40-Photovoltaic mechanism, 50-Main power grid, 60-Load circuit, 70-Refrigeration mechanism, 710-Compressor, 720-Condenser, 80-First partition, 810-Air inlet, 820-Air return outlet, 90-Second partition, 910-Ventilation hole. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model. In the present utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the drawing directions in the accompanying drawings; while "inner" and "outer" refer to the outline of the device.

[0044] like Figures 1 to 9 As shown, this application embodiment provides an energy storage device. The energy storage device includes an electrical body 10 and an energy storage battery 20. The electrical body 10 has an energy storage chamber 110. The outer surface of the electrical body 10 has a first connector 120 configured to connect to a mains power grid 50 and a second connector 130 configured to connect to a load circuit 60. The energy storage battery 20 is installed in the energy storage chamber 110. The input terminal of the energy storage battery 20 is electrically connected to the first connector 120 for charging the energy storage battery 20 via the mains power grid 50. The output terminal of the energy storage battery 20 is electrically connected to the electrical body 10 and the second connector 130 for supplying power to the electrical body 10 and the load circuit 60.

[0045] In this embodiment, an energy storage chamber 110 is constructed within the electrical appliance body 10 to house the energy storage battery 20. Because the energy storage battery 20 is built-in, it no longer occupies indoor space, increasing the usable floor area of ​​the house. Furthermore, it can be transported and installed simultaneously with the electrical appliance body 10, reducing installation costs and improving installation efficiency. The mains power grid 50 can charge the energy storage battery 20 through the first connector 120. The energy storage battery 20 can store electrical energy for backup or directly output it. The energy storage battery 20 can directly supply power to the electrical appliance body 10 or supply power to the load circuit 60 through the second connector 130, enabling the electrical appliance body 10 and other loads to consume electricity.

[0046] The appliance body 10 can be a household appliance such as a refrigerator, freezer, washing machine, dryer, water heater, air conditioner, or dishwasher. The appliance body 10 can also be a commercial appliance such as a commercial oven, commercial bread oven, or food processing machinery. In this embodiment, the appliance body 10 is preferably a refrigerator. Specifically, the appliance body 10 can have a reserved energy storage compartment 110, or the appliance body 10 can have an energy storage compartment 110 constructed in its upper space, so that the energy storage battery 20 can be stored in the energy storage compartment 110.

[0047] The load circuit 60 corresponds to the appliance body 10. When the appliance body 10 is a household appliance, the load circuit 60 is a household circuit. In this case, the energy storage battery 20 can supply power to the load circuit 60 through the second connector 130 to power other household loads. When the appliance body 10 is a commercial appliance, the load circuit 60 is a commercial circuit. In this case, the energy storage battery 20 can supply power to the load circuit 60 through the second connector 130 to power other commercial loads.

[0048] Since the energy storage battery 20 directly supplies power to the electrical appliance 10, the electrical appliance 10 will not lose power during a sudden power outage, ensuring its continued operation. Figure 2 As shown, the mains power grid 50 can supply power to the load circuit 60 through the energy storage battery 20, which can simultaneously store energy and supply power. Therefore, in the event of a sudden power outage, the load on the load circuit 60 will not lose power, ensuring continuous operation of the load.

[0049] Since the mains power grid 50 can supply power to the load circuit 60 through the energy storage battery 20, the energy storage battery 20 can store electrical energy during off-peak hours and supply power to the load circuit 60 during peak hours. Therefore, by rationally selecting the energy storage time, the pressure on the power grid can be reduced, the energy consumption of the power system can be reduced, energy conservation and emission reduction can be achieved, and electricity costs can be reduced.

[0050] like Figure 5 As shown, the first connector 120 is integrated into the outer surface of the appliance body 10, and the first connector 120 can be electrically connected to the mains power grid 50. The mains power grid 50 can supply power to other appliances only through the direction of first connector 120-conversion module 30-energy storage battery 20-second connector 130-load circuit 60. Alternatively, the mains power grid 50 can also be electrically connected to the load circuit 60 through another branch, thereby supplying power to other appliances.

[0051] The second connector 130 is integrated into the outer surface of the appliance body 10. The second connector 130 can be directly electrically connected to the load circuit 60, thus eliminating the need for a socket on the appliance body 10. Alternatively, the second connector 130 can be configured as a socket, with the load circuit 60 connected to the socket via a plug to achieve electrical connection with the second connector 130.

[0052] like Figure 3 As shown, in some embodiments, the energy storage device further includes a conversion module 30. The conversion module 30 is installed in the energy storage chamber 110. The conversion module 30 is electrically connected between the first connector 120 and the input terminal of the energy storage battery 20, and is used to convert the alternating current from the mains power grid 50 into direct current and deliver it to the energy storage battery 20.

[0053] The conversion module 30 uses a PCS (Power Conversion System / Energy Storage Converter). Since the energy storage battery 20 can only store DC power, the AC power in the mains grid 50 is converted into DC power by the conversion module 30 before being input to the energy storage battery 20 to achieve energy storage.

[0054] Please continue reading. Figure 4 and Figure 5 In some embodiments, a third connector 140 is formed on the outer surface of the electrical body 10. The third connector 140 is electrically connected to the input terminal of the energy storage battery 20. The energy storage electrical appliance also includes a photovoltaic mechanism 40. The photovoltaic mechanism 40 is electrically connected to the third connector 140 and is used to supply direct current to the energy storage battery 20.

[0055] It is understandable that the photovoltaic (PV) mechanism 40 can convert solar energy into electrical energy. When the PV mechanism 40 is electrically connected to the third connector 140, it can continuously charge the energy storage battery 20 without consuming power from the mains power grid 50. Therefore, by using the PV mechanism 40 to generate electricity, the pressure on the power grid can be reduced, the energy consumption of the power system can be lowered, energy conservation and emission reduction can be achieved, and electricity costs can be reduced.

[0056] Among them, photovoltaic structure 40 consists of photovoltaic panels.

[0057] In some embodiments, natural energy power generation devices such as wind power generation devices, tidal power generation devices, and geothermal power generation devices may be used instead of photovoltaic devices 40.

[0058] Please continue reading. Figure 4 and Figure 5 In some embodiments, the outer surface of the electrical body 10 is also formed with a fourth connector 150 configured to connect to the mains power grid 50. The conversion module 30 is also electrically connected between the output end of the energy storage battery 20 and the fourth connector 150 to convert the DC power stored in the energy storage battery 20 into AC power and deliver it to the mains power grid 50.

[0059] Understandably, since the photovoltaic system 40 can continuously generate electricity, when the power consumption rate of electrical appliances is less than the power generation rate of the photovoltaic system 40, the electrical energy in the energy storage battery 20 will gradually accumulate. At this time, the direct current (DC) power generated by the energy storage battery 20 can be converted into alternating current (AC) power by the conversion module 30 and transmitted to the mains power grid 50 to supply electricity to the grid. Thus, additional economic resources can be obtained through selling electricity, thereby increasing income.

[0060] like Figure 7As shown, in some embodiments, the electrical body 10 has a refrigeration mechanism 70, and an energy storage evaporator 1110 is provided in the energy storage chamber 110. The refrigeration mechanism 70 is connected to the energy storage evaporator 1110 and is used to supply low-temperature and low-pressure liquid refrigerant to the energy storage evaporator 1110.

[0061] It is understandable that the energy storage battery 20 will generate heat during operation. By setting up an energy storage evaporator 1110 in the energy storage chamber 110, and using a refrigeration mechanism 70 to provide low-temperature and low-pressure liquid refrigerant to the energy storage evaporator 1110, the low-temperature and low-pressure liquid refrigerant can be phase-changed into low-temperature and low-pressure gaseous refrigerant in the energy storage evaporator 1110. The phase change of the refrigerant can absorb a large amount of heat in the energy storage chamber 110, so as to cool the energy storage battery 20.

[0062] like Figure 8 and Figure 9 As shown, in some embodiments, the energy storage chamber 110 is provided with a first partition 80, which is used to divide the energy storage chamber 110 into a working chamber 1120 and a cooling chamber 1130. The first partition 80 is configured with an air inlet 810 and an air return outlet 820 for connecting the working chamber 1120 and the cooling chamber 1130. The energy storage battery 20 is located in the working chamber 1120, and the energy storage evaporator 1110 is located in the cooling chamber 1130.

[0063] The working chamber 1120 and the cooling chamber 1130 are separated by a first partition 80, allowing the energy storage battery 20 and the energy storage evaporator 1110 to be installed independently. The arrangement of the air inlet 810 and the air outlet 820 restricts airflow direction. Specifically, cold air in the cooling chamber 1130 can only be blown into the working chamber 1120 through the air inlet 810, and hot air in the working chamber 1120 can only be blown into the cooling chamber 1130 through the air outlet 820. This cools the hot air within the cooling chamber 1130 and prevents erratic airflow that could affect heat dissipation.

[0064] In some embodiments, a fan is provided on the first partition 80 at the air inlet 810 and / or the air return outlet 820. It is understood that the energy storage chamber 110 is a closed cavity, and the airflow generated by the fan is used to make the air in the working chamber 1120 and the cooling chamber 1130 continuously flow, so that cold air can quickly enter the working chamber 1120 to cool the energy storage battery 20.

[0065] In some embodiments, a fan is installed on the first partition 80 only at the air inlet 810. In this case, the air inlet of the fan faces the cooling chamber 1130, and the air outlet faces the working chamber 1120.

[0066] In some embodiments, a fan is installed on the first partition 80 only at the return air inlet 820. In this case, the air inlet of the fan faces the working chamber 1120, and the air outlet faces the cooling chamber 1130.

[0067] In some embodiments, a fan is installed on the first partition 80 at both the air inlet 810 and the air outlet 820. The fan at the air inlet 810 has its air inlet facing the cooling chamber 1130 and its air outlet facing the working chamber 1120. The fan at the air outlet 820 has its air inlet facing the working chamber 1120 and its air outlet facing the cooling chamber 1130.

[0068] Please see Figure 9 In some embodiments, a second partition 90 is provided inside the energy storage chamber 110. The second partition 90 divides the working chamber 1120 into a storage chamber 1140 and a return chamber 1150. A vent 910 is constructed on the second partition 90 to connect the storage chamber 1140 and the return chamber 1150. The energy storage battery 20 is located inside the storage chamber 1140. An air inlet 810 connects the storage chamber 1140 and the cooling chamber 1130. An air return outlet 820 connects the return chamber 1150 and the cooling chamber 1130.

[0069] Understandably, the second partition 90 divides the working chamber 1120 into an independently configured storage chamber 1140 and a return chamber 1150. The energy storage battery 20 is placed in the storage chamber 1140, and the return chamber 1150 serves as a hot air return channel. This further restricts the airflow direction, preventing erratic airflow that could affect heat dissipation. The airflow direction is: cooling chamber 1130 - air inlet 810 - storage chamber 1140 - vent 910 - return chamber 1150 - return air inlet 820 - cooling chamber 1130.

[0070] The first partition 80 is vertically arranged, forming a working chamber 1120 and a cooling chamber 1130 distributed horizontally. The upper and lower ends of the first partition 80 are fixed to the upper and lower surfaces of the energy storage chamber 110, respectively. The fixing method can be fastening with fasteners, welding, or bonding. The second partition 90 is horizontally arranged, forming a storage chamber 1140 and a reflux chamber 1150 distributed vertically. One end of the second partition 90 is fixed to the side surface of the energy storage chamber 110, and the other end is fixed to the first partition 80. The fixing method can be fastening with fasteners, welding, or bonding.

[0071] Since the second separator 90 is set horizontally, the energy storage battery 20 is fixed on the second separator 90.

[0072] Please see Figure 1 and Figure 7In some embodiments, the appliance body 10 includes a refrigerator. The appliance body 10 also has a freezer compartment 160 and a refrigerator compartment 170. The freezer compartment 160, refrigerator compartment 170, and energy storage compartment 110 are stacked sequentially from bottom to top. The refrigeration mechanism 70 includes a compressor 710, a condenser 720, and a throttling device. The input end of the condenser 720 is connected to the output end of the compressor 710. The input end of the throttling device is connected to the output end of the condenser 720. A freezer evaporator 1610 is provided in the freezer compartment 160. A refrigerator evaporator 1710 is provided in the refrigerator compartment 170. The freezer evaporator 1610 is connected between the output end of the throttling device and the input end of the compressor 710. The refrigerator evaporator 1710 is connected between the output end of the throttling device and the input end of the compressor 710. An energy storage evaporator 1110 is connected between the output end of the throttling device and the input end of the compressor 710.

[0073] Understandably, if the appliance body 10 is a refrigerator, it can be powered by the energy storage battery 20, effectively reducing the rate of food spoilage inside the refrigerator after a sudden power outage. Simultaneously, the refrigerator will have its own refrigeration mechanism 70 with a compressor 710, a condenser 720, and a throttling device. The energy storage battery 20 in the energy storage compartment 110 utilizes the refrigerator's refrigeration structure for cooling, effectively solving the problem of heat dissipation difficulties in home storage products and reducing the heat dissipation costs of home storage products.

[0074] In this embodiment, the energy storage compartment 110 is positioned above the refrigerator, which effectively utilizes the space above the refrigerator and prevents its waste. Simultaneously, it ensures that the energy storage battery 20 does not occupy other indoor space, increasing the usable floor area and preventing the energy storage battery 20 from detracting from the room's aesthetics.

[0075] The compressor 710 generates a high-temperature, high-pressure gaseous refrigerant. This gaseous refrigerant flows from the refrigerant pipeline into the condenser 720, where it undergoes a phase change to form a high-temperature, high-pressure liquid refrigerant. This liquid refrigerant is then throttled and depressurized by a throttling device to become a low-temperature, low-pressure liquid refrigerant, which flows into the refrigeration evaporator 1610, the refrigerator evaporator 1710, and the energy storage evaporator 1110, respectively. The low-temperature, low-pressure liquid refrigerant cools the freezer compartment 160 through the refrigeration evaporator 1610, maintaining it at a low temperature for freezing food. Similarly, the low-temperature, low-pressure liquid refrigerant cools the refrigerator compartment 170 through the refrigerator evaporator 1710, maintaining it at a low temperature for refrigerating food. Low-temperature, low-pressure liquid refrigerant cools the energy storage chamber 110 via the energy storage evaporator 1110, thereby cooling the energy storage battery 20 within the energy storage chamber 110. The low-temperature, low-pressure liquid refrigerant can transform into a low-temperature, low-pressure gaseous refrigerant within the refrigeration evaporator 1610, the cold storage evaporator 1710, and the energy storage evaporator 1110. The low-temperature, low-pressure gaseous refrigerant then flows back to the compressor 710, completing one refrigerant cycle.

[0076] The throttling device can be a capillary tube, used to reduce the pressure of the high-temperature, high-pressure liquid refrigerant discharged from the condenser 720, transforming it into a low-temperature, low-pressure liquid refrigerant. Alternatively, an expansion valve or other similar device can be used; the appropriate device can be selected based on cost and other factors.

[0077] Based on the cooling capacity requirements of the freezer compartment 160, refrigerator compartment 170, and energy storage compartment 110, the flow rate of low-temperature and low-pressure liquid refrigerant in the corresponding refrigerant circuit is rationally allocated.

[0078] In some embodiments, the energy storage battery 20 includes a battery module 210 and a battery management system (BMS), which is electrically connected to the battery module 210. The conversion module 30 is integrated into the battery management system. Alternatively, the conversion module 30 is integrated into the battery module 210.

[0079] Understandably, the battery management system can monitor, manage, and protect the battery module 210 in real time, enabling battery status detection, battery performance balancing, fault diagnosis and protection, and power calculation and prediction. For example... Figure 6 As shown, the conversion module 30 is integrated into the battery management system to achieve a unified setup of the adapter module and the energy storage battery 20. Alternatively, the conversion module 30 is integrated into the battery module 210 to achieve a unified setup of the adapter module and the energy storage battery 20. This facilitates the installation of the adapter module.

[0080] The energy storage battery 20 may include multiple battery modules 210. The volume of the energy storage chamber 110 can be reasonably designed according to the size of the electrical product, and the number and distribution of the battery modules 210 can be reasonably selected based on the volume of the energy storage chamber 110.

[0081] like Figure 8 and Figure 9 As shown, in some embodiments, the battery module 210 includes at least two spaced-apart individual cells 220. A support member 230 is provided between each pair of adjacent individual cells 220. The support member 230 forms a flow channel 240. The flow channel 240 is configured as a path for the flow of cool air.

[0082] It is understandable that the support member 230 can not only support two adjacent individual cells 220, but also allow cold air to flow through the flow channel 240 formed inside. When the cold air passes through the flow channel 240, it can exchange heat with the support member 230 and the individual cells 220 to achieve heat dissipation of the individual cells 220.

[0083] The working chamber 1120 can be divided into a storage chamber 1140 and a return chamber 1150, which are distributed vertically, based on the second partition 90. The flow channel 240 formed within the support member 230 is typically directed from top to bottom. In this case, the airflow direction is: cooling chamber 1130 - air inlet 810 - storage chamber 1140 - flow channel 240 - vent 910 - return chamber 1150 - return air inlet 820 - cooling chamber 1130.

[0084] In some embodiments, the support member 230 is a square frame structure, with several roughly "Z"-shaped reinforcing ribs and several flow channels 240 inside. Based on the frame structure, the support member 230 can be made lighter, preventing the energy storage battery 20 from being too heavy and affecting the handling and movement of electrical appliances.

[0085] In some embodiments, the battery module 210 further includes end plates 250 located at both ends, the end plates 250 being in contact with individual battery cells 220 located at the ends.

[0086] In some embodiments, a second partition 90 is provided inside the energy storage chamber 110. The second partition 90 divides the working chamber 1120 of the energy storage chamber 110 into a storage chamber 1140 and a return chamber 1150. The second partition 90 is provided with vent holes 910 that communicate between the storage chamber 1140 and the return chamber 1150. The vent holes 910 correspond one-to-one with the flow channels 240.

[0087] Understandably, the hot air blown out of the flow channel 240 flows directly into the return chamber 1150 through the vent 910. Each flow channel 240 corresponds to each vent 910 to prevent airflow from wandering and affecting the cooling effect.

[0088] This application also provides a power supply system. The power supply system includes a load circuit 60, a load, and an energy storage device as described in the previous embodiments. The load is electrically connected to the load circuit 60. The energy storage battery 20 is electrically connected to the load circuit 60 via a second connector 130.

[0089] In this embodiment, an energy storage chamber 110 is constructed within the electrical appliance body 10 to house the energy storage battery 20. Because the energy storage battery 20 is built-in, it no longer occupies indoor space, increasing the usable floor area of ​​the house. Furthermore, it can be transported and installed simultaneously with the electrical appliance body 10, reducing installation costs and improving installation efficiency. The mains power grid 50 can supply DC power to the energy storage battery 20 through the first connector 120 and the conversion module 30. The energy storage battery 20 can store electrical energy for backup or output it directly. The energy storage battery 20 can directly supply power to the electrical appliance body 10 or supply power to the load circuit 60 through the second connector 130, enabling the electrical appliance body 10 and other loads to consume electricity.

[0090] Since the energy storage battery 20 directly supplies power to the load on the electrical appliance body 10, the electrical appliance body 10 will not lose power in the event of a sudden power outage, ensuring that neither the electrical appliance body 10 nor the load loses power and ensuring the continuous use of the load.

[0091] Since the mains power grid 50 can supply power to the load circuit 60 through the energy storage battery 20, the energy storage battery 20 can store electrical energy during off-peak hours and supply power to the load circuit 60 during peak hours. Therefore, by rationally selecting the energy storage time, the pressure on the power grid can be reduced, the energy consumption of the power system can be reduced, energy conservation and emission reduction can be achieved, and electricity costs can be reduced.

[0092] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An energy storage electrical appliance, characterized in that, include: An electrical appliance body has an energy storage chamber, and the outer surface of the electrical appliance body has a first connector configured to connect to the mains power grid and a second connector configured to connect to the load circuit. An energy storage battery is installed in the energy storage chamber. The input terminal of the energy storage battery is electrically connected to the first connector for charging the energy storage battery through the mains power grid. The output terminal of the energy storage battery is electrically connected to the electrical appliance body and the second connector for supplying power to the electrical appliance body and the load circuit.

2. The energy storage device according to claim 1, characterized in that, The energy storage device also includes: A conversion module is installed in the energy storage room. The conversion module is electrically connected between the first connector and the input terminal of the energy storage battery. It is used to convert the AC power from the mains grid into DC power and deliver it to the energy storage battery.

3. The energy storage device according to claim 2, characterized in that, The outer surface of the electrical appliance body is further provided with a third connector, which is electrically connected to the input terminal of the energy storage battery. The energy storage appliance also includes: The photovoltaic mechanism is electrically connected to the third connector and is used to supply direct current to the energy storage battery.

4. The energy storage device according to claim 3, characterized in that, The outer surface of the electrical appliance body is also formed with a fourth connector configured to connect to the mains power grid. The conversion module is also electrically connected between the output end of the energy storage battery and the fourth connector, for converting the DC power stored in the energy storage battery into AC power and transmitting it to the mains power grid.

5. The energy storage device according to any one of claims 1-4, characterized in that, The electrical appliance body has a refrigeration mechanism, and the energy storage chamber is equipped with an energy storage evaporator. The refrigeration mechanism is connected to the energy storage evaporator and is used to supply the energy storage evaporator with low-temperature and low-pressure liquid refrigerant.

6. The energy storage device according to claim 5, characterized in that, The energy storage chamber is provided with a first partition, which is used to divide the energy storage chamber into a working chamber and a cooling chamber. The first partition is constructed with an air inlet and an air return outlet for connecting the working chamber and the cooling chamber. The energy storage battery is located in the working chamber, and the energy storage evaporator is located in the cooling chamber.

7. The energy storage device according to claim 6, characterized in that, The first partition is equipped with a fan at the air inlet and / or the air return outlet.

8. The energy storage device according to claim 6, characterized in that, The energy storage chamber is provided with a second partition, which divides the working chamber into a storage chamber and a return chamber. The second partition is provided with a vent hole that connects the storage chamber and the return chamber. The energy storage battery is located in the storage chamber. The air inlet connects the storage chamber and the cooling chamber, and the air return outlet connects the return chamber and the cooling chamber.

9. The energy storage device according to claim 5, characterized in that, The appliance body includes a refrigerator, and the appliance body further includes a freezer compartment and a refrigerator compartment. The freezer compartment, the refrigerator compartment, and the energy storage compartment are stacked sequentially from bottom to top. The refrigeration mechanism includes: compressor; A condenser, the input of which is connected to the output of the compressor; A throttling device, the input end of which is connected to the output end of the condenser; The freezer compartment is equipped with a freezer evaporator, the refrigerator compartment is equipped with a refrigerator evaporator, the freezer evaporator is connected between the output end of the throttling device and the input end of the compressor, the refrigerator evaporator is connected between the output end of the throttling device and the input end of the compressor, and the energy storage evaporator is connected between the output end of the throttling device and the input end of the compressor.

10. The energy storage device according to any one of claims 2-4, characterized in that, The energy storage battery includes a battery module and a battery management system. The battery management system is electrically connected to the battery module. The conversion module is integrated into the battery management system, or the conversion module is integrated into the battery module.

11. The energy storage device according to claim 10, characterized in that, The battery module includes at least two spaced-apart individual cells, and a support member is provided between each pair of adjacent individual cells. The support member forms a flow channel, which is configured as a flow path for cold air.

12. The energy storage device according to claim 11, characterized in that, The energy storage chamber is provided with a second partition, which divides the working chamber of the energy storage chamber into a storage chamber and a return chamber. The second partition is provided with vent holes that connect the storage chamber and the return chamber, and the vent holes correspond one-to-one with the flow channels.

13. A power supply system, characterized in that, include: Load circuit; The load is electrically connected to the load circuit. Energy storage device as described in any one of claims 1-12; in, The energy storage battery is electrically connected to the load circuit via the second connector.

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