Battery cell stacking bracket, battery module and battery pack

Abstract

The utility model provides a battery cell stacking bracket, a battery module and a battery pack. The battery cell stacking bracket comprises a vertical connecting piece as well as a top fixing piece, a separation structure and a bottom fixing piece which are sequentially arranged in the vertical direction, the vertical connecting piece is connected with any two of the top fixing piece, the separation structure and the bottom fixing piece; under the connecting action of the vertical connecting piece, the battery cell stacking bracket is provided with the battery cell accommodating space which is arranged along the vertical direction, so that the vertical space is effectively utilized, and the occupied area of the battery module in the horizontal direction is reduced. Moreover, the space between the top fixing part and the bottom fixing part is divided into a plurality of battery cell accommodating spaces through the separation structures, so that a plurality of battery cells are carried. And the battery cells are sequentially carried on the battery cell stacking bracket along the vertical direction, so that the occupied area of the battery module in the horizontal direction is not increased.

Description

Technical Field

[0001] This application belongs to the field of battery technology, and more specifically, relates to a cell stacking bracket, a battery module, and a battery pack. Background Technology

[0002] In the current field of energy storage technology, residential energy storage systems are receiving increasing attention as key equipment for achieving energy self-sufficiency and optimizing energy efficiency in homes and small businesses. Traditional residential energy storage systems typically contain multiple battery modules, which, due to their side-by-side placement, result in a large overall footprint, making them inconvenient for environments with limited space. Utility Model Content

[0003] The purpose of this application is to provide a cell stacking support, a battery module, and a battery pack to solve the technical problem of the large overall footprint of batteries in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0005] A battery cell stacking support is provided, comprising:

[0006] The battery cell stacking bracket includes a vertical connector and a top fixing member, a partition structure, and a bottom fixing member arranged sequentially along the vertical direction. The vertical connector is connected to any two of the top fixing member, the partition structure, and the bottom fixing member. Under the connection of the vertical connector, the battery cell stacking bracket has a battery cell accommodating space arranged along the vertical direction, thereby effectively utilizing vertical space and reducing the horizontal footprint of the battery module.

[0007] The number of the partition structure is at least one, which divides the top fixing member and the bottom fixing member into at least two vertically arranged cell accommodating spaces, thereby enabling the installation of multiple cells without increasing the horizontal footprint of the battery module.

[0008] As a further improvement to the above technical solution:

[0009] Optionally, the partition structure includes an intermediate fixing member and a support member. The intermediate fixing member is located between the top fixing member and the bottom fixing member. The vertical connecting member is connected to any two of the top fixing member, the intermediate fixing member, and the bottom fixing member. The support member is connected to the intermediate fixing member and supports the bottom of the battery cell, providing good support for the battery cell and avoiding the problem of excessive pressure and deformation of the bottom battery cell caused by direct stacking of battery cells.

[0010] Optionally, the top fixing member, middle fixing member, and bottom fixing member are all arranged in pairs and respectively located on opposite sides of the cell accommodating space to fix or limit the cell on opposite sides, ensuring the cell is stably installed. One end of the support member is connected to one of the paired middle fixing members, and the other end of the support member is connected to the other paired middle fixing member, so that the support member forms a simply supported structure, reducing the bending deformation of the support member.

[0011] Optionally, there are multiple partition structures to divide the space between the top and bottom fixing members into multiple cell accommodating spaces, thereby enabling the cell stacking bracket to accommodate more cells. Each of the partition structures is arranged sequentially in a vertical direction between the top and bottom fixing members.

[0012] Optionally, the bottom fixing component includes a positioning protrusion for docking with the battery pack housing, thereby realizing the connection and positioning of the cell stacking bracket and the battery pack housing, which not only makes the connection between the cell stacking bracket and the battery pack housing more stable, but also ensures the assembly accuracy between the cell stacking bracket and the battery pack housing.

[0013] Optionally, the bottom fixing component includes a limiting hole for connecting with the battery cell to achieve the connection and positioning of the battery cell and the battery cell stacking bracket, and ensure the stable connection between the battery cell and the battery cell stacking bracket.

[0014] Optionally, the bottom fixing member includes a flat plate portion and a vertical plate portion. The flat plate portion corresponds to the bottom surface of the battery pack housing, and the vertical plate portion corresponds to the side wall of the battery cell. The positioning protrusion is provided on the flat plate portion and extends vertically downward to facilitate docking with the positioning groove in the battery pack housing. The limiting hole is provided on the vertical plate portion to facilitate docking with the limiting protrusion on the side wall of the battery cell.

[0015] This application also provides a battery module, including a battery cell and the aforementioned battery cell stacking bracket, wherein the battery cell is installed in the battery cell accommodating space of the battery cell stacking bracket.

[0016] As a further improvement to the above technical solution:

[0017] Optionally, a battery management component is also included. The battery management component is installed on the cell stacking bracket and electrically connected to the cell. The battery management component intelligently manages and maintains each cell, monitors the battery status, and prevents overcharging and over-discharging of the battery, thereby extending the battery's service life.

[0018] This application also provides a battery pack, including a battery pack housing and the aforementioned battery module, wherein the battery module is installed inside the battery pack housing.

[0019] The beneficial effects of the cell stacking bracket provided in this application are as follows:

[0020] The cell stacking support provided in this application includes a vertical connector and a top fixing member, a partition structure, and a bottom fixing member arranged sequentially in the vertical direction. The vertical connector is connected to any two of the top fixing member, partition structure, and bottom fixing member. Specifically, "connected to any two" means that both ends of the vertical connector are connected to the top fixing member and the partition structure respectively, or both ends of the vertical connector are connected to the partition structure and the bottom fixing member respectively, or both ends of the vertical connector are connected to two partition structures respectively. Other arrangements and combinations of the top fixing member, partition structure, and bottom fixing member are all technical solutions disclosed in this application. With the connection provided by the vertical connector, the cell stacking support has cell accommodating space arranged in the vertical direction, thereby effectively utilizing vertical space and reducing the horizontal footprint of the battery module. Furthermore, the partition structure divides the space between the top fixing member and the bottom fixing member into multiple cell accommodating spaces, thus enabling the mounting of multiple cells. The cells are sequentially mounted on the cell stacking support in the vertical direction without increasing the horizontal footprint of the battery module. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 A three-dimensional structural diagram of the battery cell stacking support provided in this application;

[0023] Figure 2 A three-dimensional structural diagram of the bottom fixing component provided in this application;

[0024] Figure 3 A three-dimensional structural diagram of the battery module provided in this application;

[0025] Figure 4 This is a three-dimensional structural diagram of the battery pack provided in this application.

[0026] The following are the labeling elements in the figure:

[0027] 1. Top fastener;

[0028] 2. Dividing structure; 21. Intermediate fixing component; 22. Supporting component;

[0029] 3. Bottom fixing component; 31. Flat plate part; 32. Vertical plate part; 33. Positioning protrusion; 34. Limiting hole;

[0030] 4. Vertical connectors;

[0031] 5. Battery cells;

[0032] 6. Battery management components;

[0033] 7. Battery pack casing. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of this utility model.

[0040] In the following description, suffixes such as "circuit," "component," "assembly," or "unit" are used only for the purpose of describing this utility model and have no specific meaning in themselves. Therefore, they can be used in combination.

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0042] like Figure 1 and Figure 2 As shown, this application provides a cell stacking support, including a vertical connector 4 and a top fixing member 1, a partition structure 2, and a bottom fixing member 3 arranged sequentially in the vertical direction. The vertical connector 4 is connected to any two of the top fixing member 1, the partition structure 2, and the bottom fixing member 3. Specifically, connecting to any two means that both ends of the vertical connector 4 are connected to the top fixing member 1 and the partition structure 2 respectively, or both ends of the vertical connector 4 are connected to the partition structure 2 and the bottom fixing member 3 respectively, or both ends of the vertical connector 4 are connected to two partition structures 2 respectively. Other arrangements and combinations of the top fixing member 1, the partition structure 2, and the bottom fixing member 3 are all technical solutions disclosed in this application. With the connection function of the vertical connector 4, the cell stacking support has cell accommodating space arranged in the vertical direction, thereby effectively utilizing vertical space and reducing the horizontal footprint of the battery module. Furthermore, the partition structure 2 divides the space between the top fixing member 1 and the bottom fixing member 3 into multiple cell accommodating spaces, thereby enabling the mounting of multiple cells 5. Each battery cell 5 is mounted vertically on the battery cell stacking bracket, which does not increase the horizontal footprint of the battery module. Specifically, the top fixing component 1 and the bottom fixing component 3 can be fixing plates, support beams, etc., and the vertical connecting component 4 can be double-ended screws, support tubes, connecting columns, etc.

[0043] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the partition structure 2 includes an intermediate fixing member 21 and a supporting member 22. The intermediate fixing member 21 is located between the top fixing member 1 and the bottom fixing member 3. The vertical connecting member 4 is connected to any two of the top fixing member 1, the intermediate fixing member 21, and the bottom fixing member 3. Specifically, connecting to any two means that both ends of the vertical connecting member 4 are connected to the top fixing member 1 and the intermediate fixing member 21 respectively, or both ends of the vertical connecting member 4 are connected to the intermediate fixing member 21 and the bottom fixing member 3 respectively, or both ends of the vertical connecting member 4 are connected to two intermediate fixing members 21 respectively. Other arrangements and combinations of the top fixing member 1, the intermediate fixing member 21, and the bottom fixing member 3 are all technical solutions disclosed in this application. The supporting member 22 is connected to the intermediate fixing member 21 to support the bottom of the battery cell 5, providing good support for the battery cell 5 and preventing the bottom battery cell 5 from deforming due to excessive pressure caused by direct stacking of the battery cells 5. Among them, the intermediate fixing component 21 can be a fixing plate, a support beam, etc., and the supporting component 22 can be a support plate, a supporting frame, etc.

[0044] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the top fixing member 1, the middle fixing member 21, and the bottom fixing member 3 are all arranged in pairs and are respectively located on opposite sides of the cell accommodating space to fix or limit the cell 5 on opposite sides, ensuring the stable installation of the cell 5. One end of the support member 22 is connected to one of the paired middle fixing members 21, and the other end of the support member 22 is connected to the other paired middle fixing member 21, thereby forming a simply supported structure for the support member 22 and reducing the bending deformation of the support member 22.

[0045] In one embodiment of this application, the number of partition structures 2 is at least one, which divides the space between the top fixing member 1 and the bottom fixing member 3 into at least two cell accommodating spaces, thereby enabling the cell stacking bracket to accommodate more cells 5. Each partition structure 2 is also arranged sequentially in the vertical direction between the top fixing member 1 and the bottom fixing member 3.

[0046] like Figure 1 and Figure 2As shown, in one embodiment of this application, the bottom fixing member 3 includes a positioning protrusion 33 for docking with the battery pack housing 7. Correspondingly, the battery pack housing 7 is provided with a positioning groove (not shown). When the cell stacking bracket is installed into the battery pack housing 7, the positioning protrusion 33 is inserted into the positioning groove, thereby realizing the connection and positioning between the cell stacking bracket and the battery pack housing 7. This makes the connection between the cell stacking bracket and the battery pack housing 7 more stable and ensures the assembly accuracy between the cell stacking bracket and the battery pack housing 7.

[0047] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the bottom fixing member 3 includes a limiting hole 34 for limiting connection with the battery cell 5. Correspondingly, the side wall of the battery cell 5 is provided with a limiting protrusion (not shown). When the battery cell 5 is installed onto the battery cell stacking bracket, the limiting protrusion is inserted into the limiting hole 34, thereby realizing the connection and positioning of the battery cell 5 and the battery cell stacking bracket, and ensuring the stable connection between the battery cell 5 and the battery cell stacking bracket.

[0048] like Figure 1 and Figure 2 As shown, in one embodiment of this application, the bottom fixing member 3 includes a flat plate portion 31 and a vertical plate portion 32. The flat plate portion 31 corresponds to the bottom surface of the battery pack housing 7, and the vertical plate portion 32 corresponds to the side wall of the battery cell 5. A positioning protrusion 33 is provided on the flat plate portion 31 and extends vertically downward to facilitate docking with the positioning groove in the battery pack housing 7. A limiting hole 34 is provided on the vertical plate portion 32 to facilitate docking with the limiting protrusion on the side wall of the battery cell 5.

[0049] like Figure 3 As shown, this application provides a battery module, including a battery cell 5 and a battery cell stacking bracket as described in the above embodiments. Specifically, the battery cell 5 is installed in the battery cell accommodating space of the battery cell stacking bracket, ensuring that each battery cell 5 can be stably positioned and stacked vertically. This not only effectively utilizes vertical space and reduces the horizontal footprint of the battery module, but also improves the overall compactness of the battery module, enabling it to adapt to the needs of more installation environments. Since the battery module includes the battery cell stacking bracket as described in the above embodiments, it also possesses the advantages of the battery cell stacking bracket described in the above embodiments.

[0050] like Figure 3 As shown, in one embodiment of this application, the battery module further includes a battery management component 6, which is mounted on the cell stacking bracket and electrically connected to the cell 5. Specifically, the battery management component 6 is a BMS (battery management system) unit. The BMS unit is used for intelligent management and maintenance of each cell 5, monitoring the battery status, and preventing overcharging and over-discharging to extend the battery's lifespan.

[0051] like Figure 4 As shown, this application provides a battery pack, including a battery pack housing 7 and the battery module as described in the above embodiments. Specifically, the battery module is installed inside the battery pack housing 7 to ensure that the battery module receives effective physical support and protection. The battery pack housing 7 can effectively isolate and protect against external environmental factors such as moisture, dust, and physical impacts, protecting the safe operation of the battery module and extending its service life. Since the above battery pack includes the battery module as described in the above embodiments, it also has the advantages of the battery module as described in the above embodiments.

[0052] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery cell stacking support, characterized in that, include: Vertical connector (4) and top fastener (1), partition structure (2) and bottom fastener (3) arranged in sequence along the vertical direction; The vertical connector (4) is connected to any two of the top fixing member (1), the partition structure (2), and the bottom fixing member (3); The number of the partition structure (2) is at least one, so as to divide the top fixing member (1) and the bottom fixing member (3) into at least two cell accommodating spaces arranged in the vertical direction.

2. The cell stacking support as described in claim 1, characterized in that, The separation structure (2) includes an intermediate fixing member (21) and a support member (22). The intermediate fixing member (21) is located between the top fixing member (1) and the bottom fixing member (3). The vertical connecting member (4) is connected to any two of the top fixing member (1), the intermediate fixing member (21) and the bottom fixing member (3). The support member (22) is connected to the intermediate fixing member (21) and supports the bottom of the battery cell (5).

3. The cell stacking support as described in claim 2, characterized in that, The top fixing member (1), the middle fixing member (21) and the bottom fixing member (3) are all arranged in pairs and are respectively located on opposite sides of the cell accommodating space. One end of the support member (22) is connected to one of the paired middle fixing members (21), and the other end of the support member (22) is connected to the other paired middle fixing member (21).

4. The cell stacking support as described in any one of claims 1 to 3, characterized in that, The number of the partition structures (2) is multiple, and each partition structure (2) is arranged in sequence in the vertical direction between the top fixing member (1) and the bottom fixing member (3).

5. The cell stacking support as described in any one of claims 1 to 3, characterized in that, The bottom fastener (3) includes a positioning protrusion (33) for mating with the battery pack housing (7).

6. The cell stacking support as described in claim 5, characterized in that, The bottom fixing member (3) includes a limiting hole (34) for limiting connection with the battery cell (5).

7. The cell stacking support as described in claim 6, characterized in that, The bottom fixing member (3) includes a flat plate (31) and a vertical plate (32). The flat plate (31) corresponds to the bottom surface of the battery pack housing (7), and the vertical plate (32) corresponds to the side wall of the battery cell (5). The positioning protrusion (33) is provided on the flat plate (31) and extends in a vertically downward direction. The limiting hole (34) is provided on the vertical plate (32).

8. A battery module, characterized in that, It includes a battery cell (5) and a battery cell stacking bracket as described in any one of claims 1 to 7, wherein the battery cell (5) is mounted in the battery cell accommodating space of the battery cell stacking bracket.

9. The battery module as described in claim 8, characterized in that, It also includes a battery management component (6), which is mounted on the cell stacking bracket and electrically connected to the cell (5).

10. A battery pack, characterized in that, It includes a battery pack housing (7) and a battery module as described in claim 8 or 9, wherein the battery module is installed within the battery pack housing (7).

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