Energy storage battery box

Abstract

The utility model relates to the technical field of energy storage equipment, and discloses an energy storage battery box. The energy storage battery box comprises a box body, a battery module, a first liquid cooling plate and a heat exchange assembly, the battery module and the first liquid cooling plate are arranged in the box body, the first liquid cooling plate is attached to the battery module, the heat exchange assembly is arranged in the box body, the heat exchange assembly is communicated with the first liquid cooling plate, and the first liquid cooling plate is arranged in the box body. The heat exchange assembly can selectively provide heated liquid or refrigerated liquid for the first liquid cooling plate. The energy storage battery box can adapt to low-temperature and high-temperature environments at the same time, so that the environmental adaptability of the energy storage battery box is improved, and long-term stable operation of the battery module is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage equipment, in particular to an energy storage battery box. Background Art

[0002] The home energy storage system is similar to a micro energy storage power station, and its operation is not affected by the pressure of urban power supply. During the off-peak period of electricity consumption, the battery pack in the home energy storage system can charge itself to be used during peak hours or power outages. In addition to being used as an emergency power source, the home energy storage system can also balance the power load, thereby saving household electricity expenses.

[0003] Currently, most of the household energy storage battery boxes on the market adopt natural heat dissipation solutions due to space size issues, that is, heat dissipation through natural air flow. However, the natural heat dissipation solution makes household energy storage battery boxes more demanding on the environment, resulting in poor adaptability of household energy storage battery boxes to low and high temperature environments, which is not conducive to the long-term stable operation of the battery system.

[0004] Therefore, there is an urgent need to provide an energy storage battery box to solve the above problems. Utility Model Content

[0005] The utility model aims to provide an energy storage battery box that can adapt to both low-temperature and high-temperature environments, thereby improving the environmental adaptability of the energy storage battery box.

[0006] In order to achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] An energy storage battery box, comprising:

[0008] Box;

[0009] The battery module and the first liquid cooling plate are both arranged in the box, and the first liquid cooling plate is arranged in close contact with the battery module; and

[0010] A heat exchange component is disposed in the box body, the heat exchange component is communicated with the first liquid cooling plate, and the heat exchange component can selectively provide heated liquid or cooled liquid to the first liquid cooling plate.

[0011] As an optional solution, the heat exchange component includes:

[0012] Water pumps;

[0013] a second liquid cooling plate, one end of the second liquid cooling plate being connected to the water pump, and the other end of the second liquid cooling plate being connected to the first liquid cooling plate;

[0014] The heating element and the cooling element are respectively arranged on the second liquid cooling plate.

[0015] As an optional scheme, the water pump is a circulation pump, and the second liquid cooling plate includes an outer shell and a liquid inlet liquid cooling pipe and a liquid return liquid cooling pipe respectively penetrated through the outer shell, the liquid inlet end of the liquid inlet liquid cooling pipe is connected with the outlet of the water pump, the liquid outlet end of the liquid inlet liquid cooling pipe is connected with the liquid inlet of the first liquid cooling plate through the liquid inlet pipe, the liquid inlet end of the liquid return liquid cooling pipe is connected with the liquid outlet of the first liquid cooling plate through the liquid outlet pipe, and the liquid outlet end of the liquid return liquid cooling pipe is connected with the inlet of the water pump.

[0016] As an optional scheme, a vertical plate extending along the height direction is connected to the box body, and the vertical plate and the side wall of the box body define a pipeline cabin, the liquid inlet pipe and the liquid outlet pipe are both located in the pipeline cabin, the first liquid cooling plate and the battery module are both located on the side of the vertical plate away from the pipeline cabin, and the connection between the liquid inlet of the first liquid cooling plate and the liquid inlet pipe, and the connection between the liquid outlet of the first liquid cooling plate and the liquid outlet pipe are both located in the pipeline cabin.

[0017] As an optional solution, the heat exchange assembly further includes a fan, and the fan is arranged on a side of the refrigeration component away from the second liquid cooling plate.

[0018] As an optional solution, the internal space of the box body includes a battery compartment, an electrical compartment and a liquid cooling compartment that are separated from each other. The battery module is located in the battery compartment, the heat exchange component is located in the liquid cooling compartment, and the battery management system is located in the electrical compartment.

[0019] As an optional solution, an interface cabin is provided in the box body, a first side wall of the interface cabin is located inside the box body, and a positive electrode interface and a negative electrode interface are provided on the first side wall.

[0020] As an optional solution, a plurality of support frames are arranged in the box body, and the plurality of support frames are arranged in sequence and spaced apart along the height direction of the box body, and the battery module is placed on each of the support frames.

[0021] As an optional solution, the first liquid cooling plate includes a bottom shell, a cover plate and a liquid cooling pipe, the liquid cooling pipe is located in the bottom shell, and the liquid inlet and the liquid outlet of the liquid cooling pipe are located outside the bottom shell, the cover plate is buckled on the bottom shell and fits with the liquid cooling pipe, and the two ends of the cover plate along the width direction are respectively protruded from the bottom shell;

[0022] The support frame includes two support rods, which are respectively located on both sides of the bottom shell along its width direction and connected to the portion of the cover plate protruding from the bottom shell, and the battery module is arranged on the cover plate.

[0023] As an optional solution, the battery module shell is provided with end plates at both ends along its length direction, the end plates are provided with a first mounting hole, the cover plate protruding from the bottom shell is provided with a second mounting hole, and the support rod is provided with a third mounting hole, and fasteners are sequentially passed through the first mounting hole, the second mounting hole and the third mounting hole to fix the end plate, the cover plate and the support rod.

[0024] The beneficial effects of the utility model are:

[0025] The energy storage battery box provided by the utility model can provide heated liquid to the first liquid cooling plate in a low temperature environment, and the battery module exchanges heat with the first liquid cooling plate, thereby heating the battery module; while in a high temperature environment, the heat exchange component can provide refrigerated liquid to the first liquid cooling plate, and the battery module exchanges heat with the first liquid cooling plate, thereby cooling and dissipating the heat of the battery module. Therefore, the energy storage battery box can adapt to both low and high temperature environments, thereby improving the environmental adaptability of the energy storage battery box, which is beneficial to the long-term stable operation of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to explain the embodiments of the utility model or the technical solutions in the prior art more clearly and easily, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. The drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the internal structure of the energy storage battery box provided by the embodiment of the utility model;

[0028] Figure 2 It is a structural schematic diagram of the back side of the energy storage battery box provided by an embodiment of the utility model;

[0029] Figure 3 It is a schematic diagram of the cooperation between the first liquid cooling plate and the support frame provided in an embodiment of the utility model;

[0030] Figure 4 It is a structural schematic diagram of a heat exchange assembly provided by an embodiment of the utility model;

[0031] Figure 5 It is a schematic diagram of the cooperation between the heat exchange assembly and each first liquid cooling plate provided in an embodiment of the utility model.

[0032] In the figure:

[0033] 10. Box body; 11. Vertical plate; 12. Pipeline compartment; 13. Battery compartment; 14. Electrical compartment; 15. Liquid cooling compartment; 16. Interface compartment; 161. Positive electrode interface; 162. Negative electrode interface; 163. First side wall;

[0034] 20. Battery module; 21. Housing;

[0035] 30. first liquid cooling plate; 31. bottom shell; 32. cover plate; 321. second mounting hole; 33. liquid cooling pipe; 331. liquid inlet; 332. liquid outlet;

[0036] 40. heat exchange component; 41. water pump; 42. second liquid cooling plate; 421. housing; 422. liquid inlet cooling pipe; 423. liquid return cooling pipe; 43. heating element; 44. cooling element; 45. fan; 46. liquid inlet pipe; 47. liquid outlet pipe;

[0037] 50. Support frame; 51. Support rod. DETAILED DESCRIPTION

[0038] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0039] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0042] This embodiment provides an energy storage battery box, which is a household energy storage battery box that can be hung on a wall. When the energy storage battery box is hung on a wall, it is usually Figure 1 Hang in a vertical state.

[0043] Specifically, Figure 1 As shown, the energy storage battery box includes a box body 10, a battery module 20, a first liquid cooling plate 30 and a heat exchange assembly 40. The battery module 20 and the first liquid cooling plate 30 are both arranged in the box body 10. The first liquid cooling plate 30 is arranged in close contact with the battery module 20. The heat exchange assembly 40 is arranged in the box body 10. The heat exchange assembly 40 is connected to the first liquid cooling plate 30. The heat exchange assembly 40 can selectively provide the first liquid cooling plate 30 with heated liquid or cooled liquid. It should be noted that in order to show the specific structure of the energy storage battery box, Figure 1 The box body 10 shown in the figure is the box body 10 with one side of the box board hidden. In actual application, the box body 10 is a closed structure.

[0044] In a low temperature environment, the heat exchange component 40 can provide the first liquid cooling plate 30 with heated liquid, and the battery module 20 exchanges heat with the first liquid cooling plate 30, thereby increasing the temperature of the battery module 20; while in a high temperature environment, the heat exchange component 40 can provide the first liquid cooling plate 30 with cooled liquid, and the battery module 20 exchanges heat with the first liquid cooling plate 30, thereby reducing the temperature and dissipating the heat of the battery module 20. Therefore, the energy storage battery box can adapt to both low and high temperature environments, thereby improving the environmental adaptability of the energy storage battery box, which is beneficial to the long-term stable operation of the battery module 20.

[0045] In the energy storage battery boxes currently on the market, the battery module 20 and the electrical system are both arranged in the box body 10 with no partition in the middle. When the battery module 20 suffers from thermal runaway, the fire will quickly spread to the entire box body 10, causing the electrical system to be quickly damaged.

[0046] In order to solve the above problems, Figure 1As shown, the internal space of the box 10 includes a battery compartment 13, an electrical compartment 14 and a liquid cooling compartment 15 which are separated from each other. The battery module 20 is located in the battery compartment 13, the heat exchange component 40 is located in the liquid cooling compartment 15, and the electrical components such as the battery management system (BMS) are located in the electrical compartment 14. Among them, the liquid cooling compartment 15 is located at the bottom of the box 10, the electrical compartment 14 is located above the liquid cooling compartment 15, and the battery compartment 13 is located above the electrical compartment 14. The layout is reasonable, and the battery compartment 13, the electrical compartment 14 and the liquid cooling compartment 15 are separated from each other by a partition provided in the box 10. By separating the battery compartment 13 and the electrical compartment 14, when the battery module 20 has thermal runaway, the spread of thermal runaway can be effectively prevented, thereby improving the safety of the product. At the same time, the battery compartment 13 contains multiple battery modules 20, which makes the design in the battery compartment 13 more compact, which can accelerate the use of fire-fighting media such as aerosols and perfluorohexanone, play a better protective role, and ensure the safety of the product.

[0047] Furthermore, if Figure 1 and Figure 2 As shown, an interface compartment 16 is also provided in the box body 10. The interface compartment 16 is located at the bottom of the box body 10 and on the right side of the liquid cooling compartment 15. The first side wall 163 of the interface compartment 16 is located inside the box body 10. The first side wall 163 is also the lower side wall of the electrical compartment 14. A positive electrode interface 161 and a negative electrode interface 162 are provided on the first side wall 163. The positive electrode interface 161 and the negative electrode interface 162 use quick-plug interfaces to respectively connect with the connectors of the positive and negative output wires of the battery module 20 to achieve quick-plug connection, so that the battery module 20 can transmit electrical energy and signals to the outside. The design of a separate interface compartment 16 can prevent the interface from being exposed. At the same time, with the early wiring, the wires can be invisible outside the device, making the device more beautiful and simple.

[0048] like Figure 1 As shown, for ease of understanding, the height direction of the box 10 is defined as the Z-axis direction, the length direction of the box 10 is defined as the X-axis direction, and the thickness direction of the box 10 is defined as the Y-axis direction. Multiple battery modules 20 are placed flat in the box 10 along the Z-axis direction, and the length direction of each battery module 20 is the X-axis direction. The battery module 20 includes a shell 21 and multiple battery cells arranged in the shell 21. The shell 21 is a rectangular structure. The two surfaces of the shell 21 opposite to each other along the Z-axis direction are the largest surfaces, and the two surfaces of the shell 21 opposite to each other along the X-axis direction are the smallest surfaces. The battery cells are square battery cells, and the battery cells are vertically arranged in the shell 21, that is, the large surface of the battery cell is parallel to the smallest surface of the shell 21 and is arranged perpendicular to the largest surface of the shell 21. Multiple battery cells are stacked along the X-axis direction.

[0049] In the prior art, in order to reduce the difficulty of production, the entire battery module 20 is usually placed upright in the box 10, and the battery cells inside are placed flat. The upper part of the battery cells will not be completely wetted with electrolyte, which will affect the discharge capacity of the product and the cycle performance of the product.

[0050] Therefore, in order to solve the above problems, Figure 1 As shown, a plurality of support frames 50 are arranged in the box 10, and the plurality of support frames 50 are arranged in sequence and spaced apart along the Z-axis direction, and a battery module 20 is placed on each support frame 50. In this arrangement, the battery module 20 can be placed flat on the support frame 50, and the battery cell is perpendicular to the ground during operation, and the electrolyte can completely infiltrate the pole piece in the battery cell, which will not affect the service life of the battery cell, thereby ensuring the discharge capacity and cycle performance of the product.

[0051] Specifically, Figure 3 As shown, the first liquid cooling plate 30 includes a bottom shell 31, a cover plate 32 and a liquid cooling tube 33, the liquid cooling tube 33 is located in the bottom shell 31, and the liquid inlet 331 and the liquid outlet 332 of the liquid cooling tube 33 are located outside the bottom shell 31, the cover plate 32 is buckled on the bottom shell 31 and is in contact with the liquid cooling tube 33, the battery module 20 is in contact with the cover plate 32 for heat exchange, and the two ends of the cover plate 32 along its width direction (Y-axis direction) are respectively protruded from the bottom shell 31, and the support frame 50 includes two support rods 51, the two support rods 51 are respectively located on both sides of the bottom shell 31 along its width direction, and are connected to the part of the cover plate 32 protruding from the bottom shell 31, and the battery module 20 is arranged on the cover plate 32. In other words, the first liquid cooling plate 30 is roughly in a "T"-shaped structure, and the narrowed parts of the bottom shell 31 relative to the two sides of the cover plate 32 are used to fix the support rods 51 to prevent the displacement of the first liquid cooling plate 30. The battery module 20 is placed on the cover plate 32 of the first liquid cooling plate 30, which not only plays a role in heat exchange, but also plays a role in stabilizing the battery module 20. By integrating the first liquid cooling plate 30 and the support frame 50 together, space occupation can also be saved.

[0052] like Figure 3As shown, the shell 21 of the battery module 20 is provided with end plates at both ends along its length direction, and the two sides of the end plates are provided with first mounting holes, and the portion of the cover plate 32 protruding from the bottom shell 31 is provided with four second mounting holes 321, and the four second mounting holes 321 are located at the four corners of the cover plate 32, and the position corresponding to the second mounting hole 321 on the support rod 51 is provided with a third mounting hole, and the fasteners are sequentially penetrated through the first mounting hole, the second mounting hole 321 and the third mounting hole to fix the end plate, the cover plate 32 and the support rod 51. Among them, the first mounting hole, the second mounting hole 321 and the third mounting hole are preferably light holes, and the fasteners are preferably a combination of bolts and nuts, and the bolts are sequentially penetrated through the first mounting hole, the second mounting hole 321 and the third mounting hole and then connected with the nuts. In this way, the battery module 20 can be firmly connected to the support rod 51 to prevent the battery module 20 from vibrating, and the end plate, the cover plate 32 and the support rod 51 are connected at the same time by the fasteners, and the number of fasteners used can also be saved.

[0053] Among them, the liquid cooling tube 33 is distributed in the bottom shell 31 in a serpentine or winding shape, and sufficient heat exchange with the battery module 20 is achieved by extending the flow path of the liquid. The two free ends of the liquid cooling tube 33 are the liquid inlet 331 and the liquid outlet 332, respectively, and the liquid inlet 331 and the liquid outlet 332 are located at the same end of the first liquid cooling plate 30 along the X-axis direction. With this arrangement, a "one-way" reciprocating flow channel extending along the length direction of the liquid cooling tube 33 is formed, and the liquid flowing into the liquid cooling tube 33 flows through the battery module 20 twice in succession, thereby improving the heat exchange effect. The liquid inlet 331 and the liquid outlet 332 use quick-plug interfaces, which can be quickly connected to the external liquid cooling tube 33.

[0054] Furthermore, if Figure 4As shown, the heat exchange assembly 40 specifically includes a water pump 41, a second liquid cooling plate 42, a heating element 43 and a cooling element 44. One end of the second liquid cooling plate 42 is connected to the water pump 41, and the other end is connected to the first liquid cooling plate 30. The heating element 43 and the cooling element 44 are respectively arranged on the opposite side surfaces of the second liquid cooling plate 42. Specifically, the heating element 43 is arranged on the upper surface of the second liquid cooling plate 42, and the cooling element 44 is arranged on the lower surface of the second liquid cooling plate 42, thereby forming a "sandwich" structure, which is compact and can effectively save space in the box 10. The water pump 41 pumps the liquid into the second liquid cooling plate 42. In a low temperature environment, the heating element 43 is started. The heating element 43 heats the liquid flowing through the second liquid cooling plate 42 by exchanging heat with the second liquid cooling plate 42, and delivers it to the first liquid cooling plate 30. The heated liquid flows in the liquid cooling pipe 33, thereby exchanging heat with the battery module 20, thereby heating the battery module 20. In a high temperature environment, the refrigeration element 44 is started. The refrigeration element 44 cools down the liquid flowing through the second liquid cooling plate 42 by exchanging heat with the second liquid cooling plate 42, and delivers it to the first liquid cooling plate 30. The cooled liquid flows in the liquid cooling pipe 33, thereby exchanging heat with the battery module 20, thereby cooling down and dissipating heat for the battery module 20.

[0055] The heating element 43 is a heating plate, and the cooling element 44 is a semiconductor cooling plate. Both the heating plate and the semiconductor cooling plate are prior arts and will not be described in detail here.

[0056] like Figure 5 As shown, the direction of the arrow indicates the flow direction of the liquid. Specifically, the water pump 41 is a circulation pump, and the second liquid cooling plate 42 includes a shell 421 and a liquid inlet liquid cooling pipe 422 and a liquid return liquid cooling pipe 423 respectively penetrated through the shell 421. The heating element 43 and the refrigeration element 44 are respectively arranged on the upper and lower sides of the shell 421. The liquid inlet liquid cooling pipe 422 and the liquid return liquid cooling pipe 423 are both arranged in close contact with the shell 421 to facilitate heat exchange. The liquid inlet end of the liquid inlet liquid cooling pipe 422 is connected to the outlet of the water pump 41, and the liquid outlet end of the liquid inlet liquid cooling pipe 422 is connected to the liquid inlet 331 of the first liquid cooling plate 30 through the liquid inlet pipe 46. The liquid inlet end of the liquid return liquid cooling pipe 423 is connected to the liquid outlet 332 of the first liquid cooling plate 30 through the liquid outlet pipe 47, and the liquid outlet end of the liquid return liquid cooling pipe 423 is connected to the inlet of the water pump 41. The liquid inlet pipe 46 is connected to the liquid inlets 331 of all the first liquid cooling plates 30 , and the liquid outlet pipe 47 is connected to the liquid outlets 332 of all the first liquid cooling plates 30 .

[0057] When in use, the circulating pump pumps the liquid into the liquid inlet cooling tube 422, the heating element 43 heats the liquid or the cooling element 44 cools the liquid, and then the heated or cooled liquid in the liquid inlet cooling tube 422 flows into the liquid inlet tube 46, and then flows into the corresponding first liquid cooling plate 30 through each liquid inlet 331 to exchange heat with each battery module 20. The liquid after heat exchange flows into the liquid outlet pipe 47 through each liquid outlet 332, and then flows back to the liquid return cooling tube 423 from the liquid outlet pipe 47, and finally flows back to the circulating pump. The circulating pump then pumps the refluxed liquid back into the liquid inlet cooling tube 422, and the cycle is repeated to form a reciprocating circulation flow of the liquid in the entire pipeline, thereby improving the heat exchange efficiency.

[0058] The liquid inlet cooling pipe 422 is distributed in the outer shell 421 in a serpentine or meandering shape, and achieves sufficient heat exchange with the heating element 43 or the cooling element 44 by extending the flow path of the liquid.

[0059] Combination Figure 1 and Figure 5 A vertical plate 11 extending along the height direction is connected to the box body 10, and the vertical plate 11 and the side wall of the box body 10 define a pipeline compartment 12. The pipeline compartment 12 is located on the left side of the battery compartment 13 and the liquid cooling compartment 15 and is separated by the vertical plate 11. The liquid inlet pipe 46 and the liquid outlet pipe 47 are both located in the pipeline compartment 12. The first liquid cooling plate 30 and the battery module 20 are both located on the side of the vertical plate 11 away from the pipeline compartment 12, that is, in the battery compartment 13, and the connection between the liquid inlet 331 of the first liquid cooling plate 30 and the liquid inlet pipe 46, and the connection between the liquid outlet 332 of the first liquid cooling plate 30 and the liquid outlet pipe 47 are both located in the pipeline compartment 12. At the same time, the connection between the liquid outlet end of the liquid inlet liquid cooling pipe 422 and the liquid inlet pipe 46, and the connection between the liquid inlet end of the liquid return liquid cooling pipe 423 and the liquid outlet pipe 47 are also located in the pipeline compartment 12. The liquid inlet 331 and the liquid outlet 332 of the first liquid cooling plate 30 are directly extended into the pipeline compartment 12, so that the connection between the liquid inlet 331 and the liquid inlet pipe 46 and the connection between the liquid outlet 332 and the liquid outlet pipe 47 are not in the battery compartment 13, which can effectively avoid the safety hazards caused by liquid leakage.

[0060] Furthermore, if Figure 4As shown, the heat exchange component 40 also includes a fan 45, which is arranged on the side of the cooling element 44 away from the second liquid cooling plate 42. It can be understood that the cooling element 44 is a semiconductor cooling plate, which is actually a thermocouple formed by connecting two pieces of semiconductor materials. When current passes through, heat transfer will occur between the two ends of the thermocouple, and the heat will be transferred from one end to the other end, thereby generating a temperature difference to form a cold and hot end, that is, the cold end absorbs heat and cools, and the heat is transferred from the cold end to the hot end. The cold end is attached to the second liquid cooling plate 42, thereby cooling the liquid flowing through the second liquid cooling plate 42. By setting the fan 45, the hot end of the semiconductor cooling plate can be dissipated, thereby ensuring the cooling efficiency of the semiconductor cooling plate.

[0061] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An energy storage battery box, characterized in that: include: Box body (10); The battery module (20) and the first liquid cooling plate (30) are both arranged in the box (10), and the first liquid cooling plate (30) is arranged in close contact with the battery module (20); and A heat exchange component (40) is disposed in the box (10); the heat exchange component (40) is connected to the first liquid cooling plate (30); and the heat exchange component (40) can selectively provide heated liquid or cooled liquid to the first liquid cooling plate (30).

2. The energy storage battery box according to claim 1, characterized in that: The heat exchange component (40) comprises: Water pump (41); A second liquid cooling plate (42), one end of the second liquid cooling plate (42) being connected to the water pump (41), and the other end of the second liquid cooling plate (42) being connected to the first liquid cooling plate (30); The heating element (43) and the cooling element (44) are respectively disposed on the second liquid cooling plate (42).

3. The energy storage battery box according to claim 2, characterized in that: The water pump (41) is a circulation pump. The second liquid cooling plate (42) comprises a shell (421) and a liquid inlet liquid cooling pipe (422) and a liquid return liquid cooling pipe (423) respectively penetrated through the shell (421). The liquid inlet end of the liquid inlet liquid cooling pipe (422) is connected to the outlet of the water pump (41). The liquid outlet end of the liquid inlet liquid cooling pipe (422) is connected to the liquid inlet (331) of the first liquid cooling plate (30) through the liquid inlet pipe (46). The liquid inlet end of the liquid return liquid cooling pipe (423) is connected to the liquid outlet (332) of the first liquid cooling plate (30) through the liquid outlet pipe (47). The liquid outlet end of the liquid return liquid cooling pipe (423) is connected to the inlet of the water pump (41).

4. The energy storage battery box according to claim 3, characterized in that: The box body (10) is connected to a vertical plate (11) extending in a height direction thereof, and the vertical plate (11) and the side wall of the box body (10) define a pipeline compartment (12), the liquid inlet pipe (46) and the liquid outlet pipe (47) are both located in the pipeline compartment (12), the first liquid cooling plate (30) and the battery module (20) are both located on a side of the vertical plate (11) away from the pipeline compartment (12), and a connection between a liquid inlet (331) of the first liquid cooling plate (30) and the liquid inlet pipe (46), and a connection between a liquid outlet (332) of the first liquid cooling plate (30) and the liquid outlet pipe (47) are both located in the pipeline compartment (12).

5. The energy storage battery box according to claim 2, characterized in that: The heat exchange assembly (40) further comprises a fan (45), and the fan (45) is arranged on a side of the refrigeration element (44) facing away from the second liquid cooling plate (42).

6. The energy storage battery box according to any one of claims 1 to 5, characterized in that: The internal space of the box body (10) comprises a battery compartment (13), an electrical compartment (14) and a liquid cooling compartment (15) which are separated from each other; the battery module (20) is located in the battery compartment (13); the heat exchange component (40) is located in the liquid cooling compartment (15); and the battery management system is located in the electrical compartment (14).

7. The energy storage battery box according to any one of claims 1 to 5, characterized in that: An interface compartment (16) is provided in the box body (10); a first side wall (163) of the interface compartment (16) is located inside the box body (10); and a positive electrode interface (161) and a negative electrode interface (162) are provided on the first side wall (163).

8. The energy storage battery box according to any one of claims 1 to 5, characterized in that: A plurality of support frames (50) are arranged in the box body (10), and the plurality of support frames (50) are arranged in sequence and spaced apart along the height direction of the box body (10), and the battery module (20) is placed on each of the support frames (50).

9. The energy storage battery box according to claim 8, characterized in that: The first liquid cooling plate (30) comprises a bottom shell (31), a cover plate (32) and a liquid cooling tube (33); the liquid cooling tube (33) is located inside the bottom shell (31), and a liquid inlet (331) and a liquid outlet (332) of the liquid cooling tube (33) are located outside the bottom shell (31); the cover plate (32) is buckled on the bottom shell (31) and fits with the liquid cooling tube (33); and both ends of the cover plate (32) along its width direction are respectively protruded from the bottom shell (31); The support frame (50) comprises two support rods (51), the two support rods (51) are respectively located on both sides of the bottom shell (31) along its width direction and are connected to the portion of the cover plate (32) protruding from the bottom shell (31), and the battery module (20) is arranged on the cover plate (32).

10. The energy storage battery box according to claim 9, characterized in that: The shell (21) of the battery module (20) is provided with end plates at both ends along its length direction, the end plates are provided with a first mounting hole, the portion of the cover plate (32) protruding from the bottom shell (31) is provided with a second mounting hole (321), and the support rod (51) is provided with a third mounting hole, and fasteners are sequentially passed through the first mounting hole, the second mounting hole (321) and the third mounting hole to fix the end plate, the cover plate (32) and the support rod (51).

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