Assembly structure of energy storage battery and energy storage battery
By first locking the heat dissipation backplate to the cell module and then to the battery housing, the problem of loose connection between the backplate and the cell module is solved, achieving efficient heat dissipation and stable installation, thus improving the battery's efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU QIANCHENG NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-03-11
- Publication Date
- 2026-05-19
AI Technical Summary
In the existing technology, the method of installing the cell module first and then assembling the backplate results in a loose connection between the backplate and the cell module, which affects heat dissipation, reduces battery efficiency, and poses safety risks.
The assembly structure employs a first connector to lock the heat dissipation backplate and the cell module together to form an assembly, and then a second connector to lock it together with the battery box. This ensures that the heat dissipation backplate and the cell module are tightly connected, and the heat conduction is accelerated through the heat-conducting components.
It improves heat dissipation efficiency, ensures battery stability and safety, and makes the installation process more convenient and secure.
Smart Images
Figure CN224264169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery installation technology, specifically to an assembly structure for an energy storage battery and an energy storage battery. Background Technology
[0002] In the existing technology field, a common problem regarding battery module assembly processes involves the assembly sequence of the cell modules with the battery casing and backplate. Traditionally, the cell modules are first installed into the battery casing. This step requires high precision and stability to ensure the cell modules are correctly positioned within the casing and can withstand subsequent operations and long-term use. Then, the backplate is locked to the battery casing. As a crucial component of the battery module, the backplate not only protects the cell modules but also often plays a critical role in heat dissipation.
[0003] However, this method of installing the cell module first and then assembling the backplate has a significant drawback: it may result in an insufficiently tight connection between the backplate and the cell module. This loose connection could stem from the accumulation of minor errors during assembly, or from the failure to precisely adjust the space reserved between the cell module and the casing during backplate assembly. Once a gap exists between the backplate and the cell module, it severely impacts the overall heat dissipation performance of the battery module, which relies on the backplate for cooling. Poor heat dissipation not only reduces battery efficiency and shortens its lifespan but may also lead to overheating risks, threatening the safety and stability of the battery system. Utility Model Content
[0004] This utility model provides an assembly structure for an energy storage battery, aiming to solve the technical problem in the prior art where the battery cell module is installed first and the backplate is assembled later, resulting in poor heat dissipation of the backplate due to the low tightness of the connection between the backplate and the battery cell module.
[0005] This utility model is implemented as follows: Firstly, it provides an assembly structure for an energy storage battery, including a heat dissipation backplate, a cell module, and a battery housing. The heat dissipation backplate is locked to the cell module via a first connector to form an assembly, and the assembly is locked to the battery housing via a second connector.
[0006] Furthermore, the battery cell module is provided with a heat-conducting component.
[0007] Furthermore, the heat-conducting component is located between the heat dissipation backplate and the battery cell module.
[0008] Furthermore, the heat dissipation backplate and the battery cell module are provided with multiple first limiting holes at corresponding positions on multiple edge sides. The first connector passes through the first limiting holes to lock the heat dissipation backplate and the battery cell module to form the assembly.
[0009] Furthermore, in the formed assembly, each edge of the heat dissipation backplate extends outward relative to each edge of the battery cell module to form a first annular positioning surface.
[0010] Furthermore, the battery housing includes a second annular positioning surface, and the dimensions of the first annular positioning surface and the second annular positioning surface are correspondingly set.
[0011] Furthermore, a plurality of second limiting holes are provided at corresponding positions of the first annular positioning surface and the second annular positioning surface, and the second connector passes through the second limiting holes to lock the assembly to the battery box.
[0012] Furthermore, the first limiting hole on the heat dissipation backplate is located inside the second limiting hole.
[0013] Furthermore, the heat dissipation backplate includes a plurality of heat dissipation fins arranged in parallel, with heat dissipation cavity formed between the heat dissipation fins.
[0014] In a second aspect, an energy storage battery is provided, which is assembled using an assembly structure for an energy storage battery as described in the first aspect.
[0015] The beneficial effects achieved by this utility model are as follows: By providing an assembly structure for an energy storage battery, the cell module is first installed onto the heat dissipation backplate to form an assembly via a first connector, and then the assembly is locked to the battery housing via a second connector. This ultimately achieves the positioning and installation of the heat dissipation backplate, cell module, and battery housing. Compared to the method of first installing the cell module onto the battery housing and then assembling the backplate to the battery housing, locking the heat dissipation backplate and cell module together first strengthens the tightness between them, which is conducive to the rapid conduction of heat from the cell module to the heat dissipation backplate, thereby improving heat dissipation efficiency. Furthermore, after locking and positioning the assembly to the battery housing via the second connector, the three components are positioned together, making installation not only more convenient but also more stable. Attached Figure Description
[0016] Figure 1 An exploded view of the assembly structure of an energy storage battery provided for an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the assembly structure of the combined body provided in an embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of another assembly structure provided in an embodiment of the present utility model;
[0019] Figure 4This is a schematic diagram of the assembly structure of the combined body and the battery box provided in an embodiment of the present utility model;
[0020] Figure 5 This is a schematic diagram of the overall structure of an energy storage battery assembly structure provided in an embodiment of the present invention.
[0021] Among them, 1. heat dissipation backplate, 2. cell module, 3. battery box, 4. first connector, 5. second connector, 6. first limiting hole, 7. first annular positioning surface, 8. second annular positioning surface, 9. second limiting hole, 10. heat sink, 11. heat dissipation cavity. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages 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.
[0023] This application first installs the cell module onto the heat dissipation backplate using the first connector to form an assembly, and then locks the assembly to the battery housing using the second connector. This ultimately achieves the positioning and installation of the heat dissipation backplate, cell module, and battery housing. Compared to the method of first installing the cell module onto the battery housing and then assembling the backplate, this assembly method first locks the heat dissipation backplate and cell module together, which strengthens the tightness between them and facilitates the rapid transfer of heat from the cell module to the heat dissipation backplate, thereby improving heat dissipation efficiency. Furthermore, after locking the assembly to the battery housing using the second connector, the three components are positioned together, making installation not only more convenient but also more stable.
[0024] Example 1
[0025] Combination Figures 1-5 As shown, this utility model embodiment provides an assembly structure for an energy storage battery, including a heat dissipation backplate 1, a cell module 2, and a battery housing 3. The heat dissipation backplate 1 is locked to the cell module 2 by a first connector 4 to form an assembly, and the assembly is locked to the battery housing 3 by a second connector 5.
[0026] Specifically, the aforementioned heat dissipation backplate 1 is used to dissipate heat from the battery cell module 2, ensuring its performance and maintaining normal operation. The aforementioned battery cell module 2 is used to provide electrical energy. The aforementioned battery housing 3 is used to encapsulate the battery cell module 2, providing external protection for it.
[0027] More specifically, the aforementioned first connector 4 and second connector 5 include screws, bolts, locating pins, etc. Holes can be made at corresponding positions on the heat dissipation backplate 1 and the battery module 2. The first connector 4 passes through these holes, and the two are then fastened together to form a composite assembly. By pre-locking the heat dissipation backplate 1 and the battery module 2, a tight fit is ensured, reducing the gap between them. This facilitates heat conduction from the battery module 2 to the heat dissipation backplate 1, enabling rapid heat dissipation and improving heat dissipation efficiency.
[0028] Furthermore, after the assembly is formed, holes can be made at corresponding positions on the heat dissipation backplate 1 and the battery box 3. Based on the holes made at corresponding positions on the heat dissipation backplate 1 and the battery box 3, the assembly and the battery box 3 are fixed by passing through the second connector 5. The battery cell module 2 in the assembly is placed in the cavity of the battery box 3, thus achieving the locking of the heat dissipation backplate 1, the battery module and the battery box 3. The battery module is securely installed in the battery box 3, and the installation method is also convenient.
[0029] In this embodiment of the invention, the cell module 2 is first installed onto the heat dissipation backplate 1 to form an assembly via the first connector 4, and then the assembly is locked to the battery housing 3 via the second connector 5. This achieves the positioning and installation of the heat dissipation backplate 1, the cell module 2, and the battery housing 3. Compared to the method of first installing the cell module 2 onto the battery housing 3 and then assembling the backplate with the battery housing 3, locking the heat dissipation backplate 1 and the cell module 2 first strengthens the tightness between them, which is conducive to the rapid conduction of heat from the cell module 2 to the heat dissipation backplate 1, thereby improving the heat dissipation efficiency. Furthermore, after locking and positioning the assembly to the battery housing 3 via the second connector 5, the three are positioned together, making installation more convenient and more stable.
[0030] Example 2
[0031] In this embodiment, a heat-conducting component is provided on the battery cell module 2; the heat-conducting component is located between the heat dissipation backplate 1 and the battery cell module 2.
[0032] Specifically, the aforementioned thermal conductive component (not shown in the figure) is a thermally conductive material, including thermally conductive silicone pads, phase change thermally conductive materials, thermally conductive grease, thermally conductive gel, thermally conductive double-sided adhesive, thermally conductive graphite sheets, etc. The thermal conductive component can be attached to the side of the battery cell module 2 closest to the heat sink backplate 1. In this way, by setting the thermal conductive component and placing it close to the heat sink backplate 1, the distance between the thermal conductive component and the heat sink backplate 1 can be reduced. The heat generated by the battery cell module 2 can be conducted to the heat sink backplate 1 more quickly through the thermal conductive component, and then dissipated through the heat sink backplate 1, which is more conducive to improving heat dissipation efficiency.
[0033] Example 3
[0034] Combination Figure 3 As shown, in this embodiment, the heat dissipation backplate 1 and the battery cell module 2 are provided with multiple first limiting holes 6 at corresponding positions on multiple edge sides. The first connector 4 passes through the first limiting holes 6 to lock the heat dissipation backplate 1 and the battery cell module 2 to form a combination.
[0035] Specifically, in order to lock the heat dissipation backplate 1 and the battery module 2 together using the first connector 4, multiple first limiting holes 6 can be opened at corresponding positions on multiple edge sides of the heat dissipation backplate 1 and the battery module 2. The same first connector 4 can pass through the corresponding first limiting holes 6 on the heat dissipation backplate 1 and the battery module 2. The first limiting holes 6 at corresponding positions can ensure that the same first connector 4 can pass through simultaneously. For example, four first limiting holes 6 are opened on each of the two symmetrical edge sides of the battery module 2, and the four first limiting holes 6 on the same edge side are equally spaced. Similarly, on the heat dissipation backplate 1, first limiting holes 6 are also opened at corresponding positions to the four first limiting holes 6 opened on the two symmetrical edge sides of the battery module 2. Thus, the eight first limiting holes 6 on the heat dissipation backplate 1 and the eight first limiting holes 6 at corresponding positions on the battery module 2 are fastened together by eight screws, and finally the heat dissipation backplate 1 and the battery module 2 are locked together to form a combined assembly. Of course, the above is just an example. To enhance the stability between the battery module 2 and the heat dissipation backplate 1, the first limiting hole 6 can be opened on other edge sides. This is not the only limitation.
[0036] In this embodiment, by opening multiple first limiting holes 6 at corresponding positions on multiple edge sides of the heat dissipation backplate 1 and the cell module 2, and inserting the first connector 4 through the first limiting holes 6 at corresponding positions on the heat dissipation backplate 1 and the cell module 2, it is beneficial to lock the heat dissipation backplate 1 and the cell module 2 together to form an assembly. This reduces the distance between the heat dissipation backplate 1 and the cell module 2, which is beneficial for heat conduction by the heat-conducting components and achieves efficient heat dissipation of the cell module 2. Moreover, after forming the assembly, it can be directly placed into the battery box 3 to encapsulate the cell module 2, which is convenient and quick.
[0037] Example 4
[0038] Combination Figure 4As shown, in this embodiment, in the formed assembly, each edge of the heat dissipation backplate 1 extends outward relative to each edge of the battery cell module 2 to form a first annular positioning surface 7; the battery box 3 includes a second annular positioning surface 8, and the dimensions of the first annular positioning surface 7 and the second annular positioning surface 8 are set accordingly; a plurality of second limiting holes 9 are provided at the corresponding positions of the first annular positioning surface 7 and the second annular positioning surface 8, and the second connecting piece 5 passes through the second limiting holes 9 to lock the assembly and the battery box 3; the first limiting hole 6 opened on the heat dissipation backplate 1 is located inside the second limiting hole 9.
[0039] Specifically, the length and width of the heat dissipation backplate 1 can be larger than the length and width of the battery cell module 2. Therefore, in the assembly formed by assembling the heat dissipation backplate 1 and the battery cell module 2, the four sides of the heat dissipation backplate 1 extend outward relative to the four sides of the battery cell module 2, and the extended surface forms an annular surface, which is the first annular positioning surface 7 mentioned above. The first annular positioning surface 7 can not only open the second limiting hole 9, but also realize the limiting.
[0040] Furthermore, to facilitate assembly with the assembly, a second annular positioning surface 8 can be provided on the battery housing 3. The first annular positioning surface 7 and the second annular positioning surface 8 are adapted in terms of size and dimensions. A second limiting hole 9 can also be provided on the second annular positioning surface 8, and the positions of the second limiting holes 9 on the second annular positioning surface 8 and the first annular positioning surface 7 correspond to each other. This ensures that the same second connector 5 can be simultaneously inserted into the corresponding second limiting holes 9 on the first annular positioning surface 7 and the second annular positioning surface 8. This achieves a secure assembly between the assembly and the battery housing 3, while also limiting the first annular positioning surface 7 through the second annular positioning surface 8, ensuring that the cell module 2 is smoothly assembled into the battery housing 3. The heat dissipation backplate 1 is located on the outside of the battery housing 3, which is more conducive to improving heat dissipation efficiency. For example, the first annular positioning surface 7 includes 4 surfaces, forming 2 sets of symmetrical surfaces. 4 second limiting holes 9 are opened on one set of symmetrical surfaces, and 5 second limiting holes 9 are opened on the other set of symmetrical surfaces. Similarly, the second limiting holes 9 are also opened on the second annular positioning surface 8. Finally, by inserting 18 second connectors 5 one by one into the corresponding second limiting holes 9, the heat dissipation backplate 1 and the battery box 3 can be locked and fixed.
[0041] Furthermore, by placing the first limiting hole 6 on the heat dissipation backplate 1 inside the second limiting hole 9, it is beneficial to pre-assemble the heat dissipation backplate 1 and the cell module 2 to form a combination, while also not hindering the second limiting hole 9 on the outside from being assembled with the battery box 3 through the second connector 5.
[0042] In this embodiment, by opening second limiting holes 9 at corresponding positions on the first annular positioning surface 7 and the second annular positioning surface 8, and fastening the second connector 5 through the second limiting holes 9, the assembly can be stably assembled with the battery box 3. This not only makes assembly convenient and low-cost, but also ensures that the battery cell module 2 is placed inside the battery box 3 and the heat dissipation backplate 1 is placed outside the battery box 3, thus protecting the battery module while ensuring higher heat dissipation efficiency.
[0043] Example 5
[0044] In this embodiment, combined with Figure 5 As shown, the heat dissipation backplate 1 includes a plurality of heat dissipation fins 10 arranged in parallel, and heat dissipation cavity 11 is formed between the heat dissipation fins 10.
[0045] Specifically, arranging the heat dissipation backplate 1 into multiple parallel heat dissipation fins 10 is more conducive to achieving uniform heat dissipation from all directions and improving heat dissipation efficiency. During the heat dissipation process, heat will be dissipated through the heat dissipation cavity 11 between the heat dissipation fins 10, thereby ensuring the temperature of the battery module and the inner cavity of the battery box 3, which is conducive to the stable power supply of the battery module.
[0046] Example 6
[0047] In this embodiment, an energy storage battery is provided, which is assembled using an assembly structure of an energy storage battery as described in the above embodiments.
[0048] Specifically, depending on the application scenario, the aforementioned energy storage batteries can be single cells or combinations of multiple single cells. Energy storage batteries can be used in various electronic and electrical devices, such as data centers, telecommunications base stations, and smart grid equipment.
[0049] In this embodiment, the energy storage battery can refer to the cell module 2. When the cell module 2 is assembled based on the energy storage battery assembly structure provided in the above embodiments, the cell module 2 is first installed onto the heat dissipation backplate 1 through the first connector 4 to form an assembly. Then, the assembly is locked to the battery housing 3 through the second connector 5, thus achieving the positioning and installation of the heat dissipation backplate 1, the cell module 2, and the battery housing 3. Compared with the method of first installing the cell module 2 onto the battery housing 3 and then assembling the backplate with the battery housing 3, this assembly method first locks the heat dissipation backplate 1 and the cell module 2, which can strengthen the tightness between the two and facilitate the rapid conduction of heat from the cell module 2 to the heat dissipation backplate 1, thereby improving the heat dissipation efficiency. Furthermore, after locking and positioning the assembly with the battery housing 3 through the second connector 5, the three are positioned together, which is not only more convenient but also more stable.
[0050] In summary, in this embodiment of the present invention, the battery cell module 2 is first installed onto the heat dissipation backplate 1 to form an assembly via the first connector 4, and then the assembly is locked to the battery housing 3 via the second connector 5. This achieves the positioning and installation of the heat dissipation backplate 1, the battery cell module 2, and the battery housing 3. Compared to the method of first installing the battery cell module 2 onto the battery housing 3 and then assembling the backplate to the battery housing 3, locking the heat dissipation backplate 1 and the battery cell module 2 first strengthens the tightness between them, which is conducive to the rapid conduction of heat from the battery cell module 2 to the heat dissipation backplate 1, thereby improving the heat dissipation efficiency. Furthermore, after locking and positioning the assembly to the battery housing 3 via the second connector 5, the three are positioned together, which is not only more convenient to install but also more stable. By incorporating a heat-conducting component and positioning it close to the heat dissipation backplate 1, the distance between the component and the backplate 1 is reduced. This allows the heat generated by the cell module 2 to be conducted more quickly to the backplate 1, improving heat dissipation efficiency. Furthermore, by creating multiple first limiting holes 6 at corresponding positions on the edges of the backplate 1 and the cell module 2, and inserting the first connector 4 through these holes, the backplate 1 and cell module 2 can be securely locked together, forming a composite assembly. This reduces the distance between them, facilitating heat conduction and achieving efficient heat dissipation for the cell module 2. The assembled assembly can then be directly placed into the battery housing 3 for convenient and quick encapsulation of the cell module 2. By opening second limiting holes 9 at corresponding positions on the first annular positioning surface 7 and the second annular positioning surface 8, and securing the second connector 5 through the second limiting holes 9, the assembly can be stably assembled with the battery box 3. This not only facilitates assembly and reduces costs, but also ensures that the battery cell module 2 is placed inside the battery box 3 and the heat dissipation backplate 1 is placed outside the battery box 3, thus protecting the battery module while ensuring higher heat dissipation efficiency. Setting the heat dissipation backplate 1 as multiple parallel heat dissipation fins 10, forming a heat dissipation cavity 11, further facilitates uniform heat dissipation from all directions, improving heat dissipation efficiency.
[0051] It should be understood that the terms "first," "second," etc., in the specification, claims, or accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. The reference to "embodiment" herein means that a specific feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of this utility model. "Multiple" refers to two or more. And / or is merely a variable relationship describing related objects, indicating that three relationships may exist. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0052] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An assembly structure for an energy storage battery, comprising a heat dissipation backplate, a cell module, and a battery housing, characterized in that, The heat dissipation backplate is locked to the battery cell module via a first connector to form an assembly, and the assembly is locked to the battery housing via a second connector; wherein... The heat dissipation backplate and the battery cell module are provided with multiple first limiting holes at corresponding positions on multiple edge sides. The first connector passes through the first limiting holes to lock the heat dissipation backplate and the battery cell module to form the assembly.
2. The assembly structure of an energy storage battery according to claim 1, characterized in that, The battery cell module is equipped with a heat-conducting component.
3. The assembly structure of an energy storage battery according to claim 2, characterized in that, The heat-conducting component is located between the heat dissipation backplate and the battery cell module.
4. The assembly structure of an energy storage battery according to claim 1, characterized in that, In the assembled body, each edge of the heat dissipation backplate extends outward relative to each edge of the battery cell module to form a first annular positioning surface.
5. The assembly structure of an energy storage battery according to claim 4, characterized in that, The battery housing includes a second annular positioning surface, and the dimensions of the first annular positioning surface and the second annular positioning surface are set accordingly.
6. The assembly structure of an energy storage battery according to claim 5, characterized in that, The first annular positioning surface and the second annular positioning surface are provided with a plurality of second limiting holes at corresponding positions. The second connector passes through the second limiting holes to lock the assembly to the battery box.
7. The assembly structure of an energy storage battery according to claim 6, characterized in that, The first limiting hole on the heat dissipation backplate is located inside the second limiting hole.
8. The assembly structure of an energy storage battery according to any one of claims 1-7, characterized in that, The heat dissipation backplate includes multiple heat dissipation fins arranged in parallel, with heat dissipation cavities formed between the heat dissipation fins.
9. An energy storage battery, characterized in that, The energy storage battery is assembled using an assembly structure for an energy storage battery as described in any one of claims 1 to 8.