An energy storage cabinet
By directly integrating the battery cell modules into the energy storage cabinet, unnecessary components are eliminated. Combined with the heat exchange design of the liquid cooling plate and the battery cell stack, the problem of numerous parts in the energy storage cabinet is solved, resulting in cost reduction and improved temperature uniformity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN FOUND HOPE NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-09
Smart Images
Figure CN224342378U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of energy storage cabinet technology, and in particular relates to an energy storage cabinet. Background Technology
[0002] Lithium-ion batteries are characterized by high energy density and long cycle life, and are widely used in energy storage, electric vehicles, and backup power. During charging and discharging, lithium-ion battery cells generate a significant amount of heat. Overheating accelerates side reactions within the cells, reducing their performance and lifespan.
[0003] Therefore, in existing energy storage cabinets, the common practice is to assemble battery cell modules into battery packs, using a process from cell module to battery pack to energy storage cabinet. This results in a large number of components and high production costs for the energy storage cabinet. Therefore, there is a need to design an energy storage cabinet that can reduce the number of components, thereby lowering its production costs. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an energy storage cabinet that addresses the issue of the large number of components in existing energy storage cabinets.
[0005] To address the aforementioned problems, this utility model provides an energy storage cabinet, including a cabinet body and a battery cell module. The battery cell module is installed inside the cabinet body and includes a first module and a second module. The first module includes a tray frame and a first battery cell stack, the first battery cell stack including a plurality of stacked first battery cells. The tray frame supports the first battery cell stack. The second module includes a liquid cooling plate and a second battery cell stack, the second battery cell stack including a plurality of stacked second battery cells. The second battery cell stack is fixed to the upper surface of the liquid cooling plate so that the liquid cooling plate can exchange heat with the second battery cell stack. The first battery cell stack is fixed to the lower surface of the liquid cooling plate so that the liquid cooling plate can exchange heat with the first battery cell stack.
[0006] As a further improvement to the above technical solution:
[0007] Optionally, the cabinet includes a support base, a support frame, and a panel. The support frame is installed on the support base, the battery cell module is placed on the support base and located inside the support frame, and the panel is installed on the support frame.
[0008] Optionally, the support frame is made of square steel pipes, square tubing, or profiles connected together.
[0009] Optionally, the cabinet also includes lifting rings that can be connected to lifting equipment to lift the energy storage cabinet.
[0010] Optionally, the first cell is a square cell or a blade cell, and a plurality of the first cells are stacked along the thickness direction of the first cell; and / or, the second cell is a square cell or a blade cell, and a plurality of the second cells are stacked along the thickness direction of the second cell.
[0011] Optionally, the pallet frame includes a pallet base plate and two pallet baffles, the two pallet baffles being spaced apart on the upper surface of the pallet base plate along a first direction, and the first cell stack being located between the two pallet baffles.
[0012] Optionally, an insulating medium is provided between the first cell stack and the tray baffle, and between the first cell stack and the tray bottom plate.
[0013] Optionally, an elastic medium is provided between two adjacent first cells and between two adjacent second cells.
[0014] Optionally, thermally conductive structural adhesive is provided between the first battery cell stack and the liquid cooling plate, and between the second battery cell stack and the liquid cooling plate.
[0015] Optionally, the second module further includes two limiting baffles, which are installed at intervals along a first direction on the upper surface of the liquid cooling plate, and the second battery cell stack is located between the two limiting baffles.
[0016] Optionally, an insulating medium is provided between the second cell stack and the limiting baffle, as well as on the upper surface of the second cell stack.
[0017] Optionally, the battery cell module may have multiple cells.
[0018] Optionally, all the battery cell modules are arranged side by side along the first direction;
[0019] or,
[0020] All the aforementioned battery cell modules are arranged side by side along the second direction; wherein the first direction, the second direction, and the vertical direction are perpendicular to each other.
[0021] or,
[0022] All of the aforementioned battery cell modules are stacked vertically.
[0023] Optionally, the plurality of battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged side by side along the first direction;
[0024] or,
[0025] Multiple battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged side by side along the second direction;
[0026] or,
[0027] The multiple battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged in multiple layers along the first direction and multiple layers along the second direction.
[0028] The energy storage cabinet provided in this embodiment of the utility model has at least the following beneficial effects compared with the prior art: the energy storage cabinet adopts the direct integration of cell modules into the cabinet to form an energy storage cabinet. Compared with the existing method of using cell modules to battery packs and then to energy storage cabinets, it eliminates other components such as battery trays and sealing covers required for assembly, reduces the number of structural components, and lowers the cost of the entire containerized energy storage cabinet. Attached Figure Description
[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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.
[0030] Figure 1 This is a schematic diagram of the external structure of the energy storage cabinet provided in one embodiment of the present utility model;
[0031] Figure 2 This is a schematic diagram of the internal structure of the energy storage cabinet provided in one embodiment of the present invention;
[0032] Figure 3 This is a schematic diagram of the battery cell module of the energy storage cabinet provided in one embodiment of the present invention;
[0033] Figure 4 This is a schematic diagram of the structure of the first module of the battery cell module of the energy storage cabinet provided in one embodiment of the present invention;
[0034] Figure 5 This is a schematic diagram of the structure of the second module of the battery cell module of the energy storage cabinet provided in one embodiment of the present invention.
[0035] The reference numerals in the accompanying drawings are as follows:
[0036] 100. Battery cell module; 110. First module; 111. Pallet rack; 112. First battery cell stack; 113. First battery cell; 114. Pallet base plate; 115. Pallet baffle; 120. Second module; 121. Liquid cooling plate; 122. Second battery cell stack; 123. Second battery cell; 124. Limit baffle; 125. Liquid inlet connector; 126. Liquid outlet connector; 200. Cabinet; 210. Support base; 220. Support frame; 230. Panel; 240. Lifting ring. Detailed Implementation
[0037] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0038] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0039] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0040] like Figures 1 to 5 As shown, an embodiment of the present invention provides an energy storage cabinet, which includes a cabinet body 200 and a battery cell module 100. The battery cell module 100 is installed inside the cabinet body 200. The battery cell module 100 includes a first module 110 and a second module 120. The first module 110 includes a tray frame 111 and a first battery cell stack 112. The first battery cell stack 112 includes a plurality of stacked first battery cells 113. The tray frame 111 is used to support the first battery cell stack 112. The second module 120 includes a liquid cooling plate 121 and a second battery cell stack 123. The second battery cell stack 123 includes a plurality of stacked second battery cells 123. The second battery cell stack 123 is fixed to the upper surface of the liquid cooling plate 121 so that the liquid cooling plate 121 can exchange heat with the second battery cell stack 123. The first battery cell stack 112 is fixed to the lower surface of the liquid cooling plate 121 so that the liquid cooling plate 121 can exchange heat with the first battery cell stack 112.
[0041] The energy storage cabinet uses cell modules 100 directly integrated into the cabinet body 200 to form an energy storage cabinet. Compared with the existing method of using cell modules to battery packs and then to energy storage cabinets, it eliminates other components such as battery trays and sealing covers required for assembly, reduces the number of structural components, and lowers the cost of the entire containerized energy storage cabinet 100.
[0042] In one specific embodiment, the liquid cooling plate 121 is provided with an inlet connector 125 and an outlet connector 126. The outlet of the liquid cooler and the inlet connector 125 are connected through an inlet pipe, and the return port of the liquid cooler and the outlet connector 126 are connected through a return pipe.
[0043] During operation, the liquid cooler draws coolant from the outlet to the inlet pipe, then from the inlet connector 125 into the interior of the liquid cooling plate 121, and finally from the outlet connector 126 to the return pipe, returning to the liquid cooler from the return port. As the coolant flows inside the liquid cooling plate 121, it cools the first battery cell stack on the upper side and the second battery cell stack on the lower side. Since the second battery cell stack 123 is fixed to the upper surface of the liquid cooling plate 121, compared to existing technologies, the tray frame 111 for fixing the second battery cell stack 123 is eliminated, making the structure of the battery cell module 100 provided in this embodiment simpler and reducing its manufacturing cost. Furthermore, the first battery cell stack 112 is fixed to the lower surface of the liquid cooling plate 121, allowing the liquid cooling plate 121 to exchange heat with both the first and second battery cell stacks 112 and 123 respectively. The liquid cooling system has a simple structure, is easy to install, and has a low overall cost.
[0044] Please refer to the specific embodiment of the energy storage cabinet provided in this utility model. Figure 1 and Figure 2 The cabinet 200 includes a support base 210, a support frame 220, and a panel 230. The support frame 220 is mounted on the support base 210, and the battery cell module 100 is placed on the support base 210 and located inside the support frame 220. The panel 230 is mounted on the support frame 220. In this embodiment, the support frame 220 is made of square steel pipes, square tubing, or profiles. In a specific embodiment, multiple square tubing or profiles are fixedly connected by bolts or other components. The cabinet 200 also includes lifting rings 240, which can be connected to lifting equipment to lift the energy storage cabinet. Of course, it is understood that the support frame 220 can also be made of other materials, which is not limited here.
[0045] like Figures 3 to 5 As shown, the first cell 113 is a square cell or a blade-type cell, and multiple first cells 113 are stacked along the thickness direction of the first cell 113; and / or, the second cell 123 is a square cell or a blade-type cell, and multiple second cells 123 are stacked along the thickness direction of the second cell 123.
[0046] In this embodiment, the thickness direction of the first battery cell 113 is consistent with the length direction of the liquid cooling plate 121. One side of each of the first battery cells 113 along the thickness direction can exchange heat with the lower surface of the liquid cooling plate 121. Similarly, the thickness direction of the second battery cell 123 is consistent with the length direction of the liquid cooling plate 121. One side of each of the second battery cells 123 along the thickness direction can exchange heat with the upper surface of the liquid cooling plate 121, thereby improving the temperature uniformity of each first battery cell 113 and each second battery cell 123 and avoiding excessively high temperatures in some battery cells.
[0047] Please refer to the specific embodiment of the energy storage cabinet provided in this utility model. Figure 4 The pallet frame 111 includes a pallet base plate 114 and two pallet baffles 115. The two pallet baffles 115 are installed at intervals along a first direction on the upper surface of the pallet base plate 114, and the first cell stack 112 is confined between the two pallet baffles 115. The two pallet baffles 115 limit the first cell stack 112, so that the first cells 113 of the first cell stack 112 are in contact with each other.
[0048] In this embodiment, two tray baffles 115 are spaced apart along the length of the tray bottom plate 114, and each first cell 113 of the first cell stack 112 is stacked along the length of the tray bottom plate 114. The two tray baffles 115 can prevent the first cells 113 of the first cell stack 112 from moving away from each other, so that the first cells 113 of the first cell stack 112 are close to each other.
[0049] In one specific embodiment, an insulating medium is provided between the first cell stack 112 and the tray baffle 115, and between the first cell stack 112 and the tray bottom plate 114. The insulating medium prevents electrical conduction between the first cell stack 112 and the tray baffle 115, and between the first cell stack 112 and the tray bottom plate 114, thereby improving the safety of the cell module 100. In this embodiment, the insulating medium is selected from materials such as polyethylene, polyvinyl chloride, and polystyrene, which have good insulation properties, mechanical properties, and corrosion resistance.
[0050] In one specific embodiment, an elastic medium is provided between two adjacent first cells 113 and between two adjacent second cells 123. The elastic medium can buffer the collisions between two adjacent first cells 113 and between two adjacent second cells 123, and can prevent the cells from being deformed due to compression between two adjacent first cells 113 and between two adjacent second cells 123, thereby affecting the performance of the cells.
[0051] In one embodiment of this utility model, a thermally conductive structural adhesive is provided between the first battery cell stack 112 and the liquid cooling plate 121, and between the second battery cell stack 123 and the liquid cooling plate 121. The thermally conductive structural adhesive further secures the first battery cell stack 112 and the second battery cell stack 123, fixing the first battery cell stack 112 to the lower surface of the liquid cooling plate 121 and the second battery cell stack 123 to the upper surface of the liquid cooling plate 121. Furthermore, the thermally conductive structural adhesive facilitates heat transfer between the first battery cell stack 112 and the liquid cooling plate 121, and between the second battery cell stack 123 and the liquid cooling plate 121, thereby improving heat transfer efficiency.
[0052] Please refer to the specific embodiment of the energy storage cabinet provided in this utility model. Figure 5 The second module 120 also includes two limiting baffles 124, which are installed at intervals along a first direction on the upper surface of the liquid cooling plate 121, and the second battery cells 123 are stacked between the two limiting baffles 124. The two limiting baffles 124 limit the stack of second battery cells 123, so that the individual second battery cells 123 in the stack of second battery cells 123 are in close contact with each other.
[0053] In this embodiment, two limiting baffles 124 are spaced apart along the length of the liquid cooling plate 121, and the second cells 123 of the second cell stack are stacked along the length of the liquid cooling plate 121. The two limiting baffles 124 can prevent the second cells 123 of the second cell stack from moving away from each other, so that the second cells 123 of the second cell stack are in close contact with each other.
[0054] In one specific embodiment, an insulating medium is provided between the second battery cell stack 123 and the limiting baffle 124, as well as on the upper surface of the second battery cell stack 123. The insulating medium prevents electrical conduction between the second battery cell stack 123 and the limiting baffle 124, and between the second battery cell stack 123 and the tray base plate 114 (when the battery cell modules 100 are stacked), thereby improving the safety of the battery cell module 100. In this embodiment, the insulating medium is selected from polyethylene, polyvinyl chloride, polystyrene, etc., which have good insulation properties, mechanical properties, and corrosion resistance.
[0055] In one specific embodiment, multiple battery cell modules 100 are provided. All battery cell modules 100 are arranged side-by-side along a first direction; or, all battery cell modules 100 are arranged side-by-side along a second direction; wherein the first direction, the second direction, and the vertical direction are mutually perpendicular; or, all battery cell modules 100 are stacked along the vertical direction. Both the first and second directions are horizontal, and the first and second directions are perpendicular to each other.
[0056] In this embodiment, multiple battery cell modules 100 are arranged in multiple layers along the vertical direction, with each layer of battery cell modules 100 arranged side-by-side along a first direction. In another embodiment, multiple battery cell modules 100 are arranged in multiple layers along the vertical direction, with each layer of battery cell modules 100 arranged side-by-side along a second direction. In yet another embodiment, multiple battery cell modules 100 are arranged in multiple layers along the vertical direction, with multiple battery cell modules 100 arranged along both the first and second directions in each layer. The appropriate number of battery cell modules 100 is selected according to actual needs, and the battery cell modules 100 are arranged according to the spatial structure of the cabinet.
[0057] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.
Claims
1. An energy storage cabinet, characterized in that, The device includes a cabinet and battery cell modules. The battery cell modules are installed inside the cabinet. The battery cell modules include a first module and a second module. The first module includes a tray frame and a first battery cell stack. The first battery cell stack includes multiple stacked first battery cells. The tray frame is used to support the first battery cell stack. The second module includes a liquid cooling plate and a second battery cell stack. The second battery cell stack includes multiple stacked second battery cells. The second battery cell stack is fixed to the upper surface of the liquid cooling plate so that the liquid cooling plate can exchange heat with the second battery cell stack. The first battery cell stack is fixed to the lower surface of the liquid cooling plate so that the liquid cooling plate can exchange heat with the first battery cell stack.
2. The energy storage cabinet according to claim 1, characterized in that, The cabinet includes a support base, a support frame, and a panel. The support frame is installed on the support base, the battery cell module is placed on the support base and located inside the support frame, and the panel is installed on the support frame.
3. The energy storage cabinet according to claim 2, characterized in that, The support frame is made of square steel pipes, square tubing, or profiles connected together.
4. The energy storage cabinet according to claim 2, characterized in that, The cabinet also includes lifting rings, which can be connected to lifting equipment to lift the energy storage cabinet.
5. The energy storage cabinet according to claim 1, characterized in that, The pallet frame includes a pallet base plate and two pallet baffles. The two pallet baffles are installed at intervals along a first direction on the upper surface of the pallet base plate, and the first cell stack is located between the two pallet baffles.
6. The energy storage cabinet according to claim 5, characterized in that, An insulating medium is provided between the first cell stack and the tray baffle, and between the first cell stack and the tray bottom plate.
7. The energy storage cabinet according to claim 1, characterized in that, An elastic medium is provided between two adjacent first cells and between two adjacent second cells.
8. The energy storage cabinet according to claim 1, characterized in that, Thermally conductive structural adhesive is provided between the first battery cell stack and the liquid cooling plate, and between the second battery cell stack and the liquid cooling plate.
9. The energy storage cabinet according to claim 1, characterized in that, The second module further includes two limiting baffles, which are installed at intervals along a first direction on the upper surface of the liquid cooling plate, and the second cell stack is located between the two limiting baffles.
10. The energy storage cabinet according to claim 1, characterized in that, The battery cell module has multiple components.
11. The energy storage cabinet according to claim 10, characterized in that, All of the battery cell modules are arranged side by side along the first direction; or, All the aforementioned battery cell modules are arranged side by side along the second direction; wherein the first direction, the second direction, and the vertical direction are perpendicular to each other. or, All of the aforementioned battery cell modules are stacked vertically.
12. The energy storage cabinet according to claim 10, characterized in that, Multiple battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged side by side along the first direction; or, Multiple battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged side by side along the second direction; or, The multiple battery cell modules are arranged in multiple layers along the vertical direction, and the battery cell modules in each layer are arranged in multiple layers along the first direction and multiple layers along the second direction.