A cylindrical battery bracket module and a cylindrical battery module

Abstract

This invention relates to the field of cylindrical battery technology and discloses a cylindrical battery support module. The cylindrical battery support module includes a crossbeam and a CCS assembly. The crossbeam is welded and fixed inside the battery box, and a receiving cavity is provided on the crossbeam, within which the battery cell insulation is housed. The CCS assembly is fastened to the crossbeam and electrically connected to the battery cell. This cylindrical battery support module has a simple and reasonable structure, making the crossbeam an integral part of the module, fully utilizing the space occupied by the crossbeam within the battery box, and improving space utilization.

Description

Technical Field

[0001] This invention relates to the field of cylindrical battery technology, specifically to a cylindrical battery support module and a cylindrical battery module. Background Technology

[0002] In the traditional process of assembling cylindrical batteries into modules, multiple cells are typically integrated using end plates, side plates, or steel strips to form a battery module, which is then assembled into a battery housing. To enhance the structural strength of the battery housing, crossbeams are usually installed inside, dividing the interior into multiple cavities where the assembled battery modules are housed. However, this design does not utilize the space occupied by the crossbeams, resulting in unused crossbeams and reduced space utilization.

[0003] Therefore, there is an urgent need to provide a cylindrical battery bracket module and a cylindrical battery module to solve the above problems. Summary of the Invention

[0004] According to one aspect of the present invention, the object of the present invention is to provide a cylindrical battery support module that can make full use of the space occupied by the crossbeam inside the battery box, thereby improving space utilization.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0006] A cylindrical battery holder module, comprising:

[0007] A crossbeam is welded and fixed inside the battery box. A receiving cavity is provided on the crossbeam, and the battery cell insulation is housed in the receiving cavity.

[0008] The CCS assembly is fastened to the crossbeam and electrically connected to the battery cell.

[0009] As a preferred embodiment of a cylindrical battery support module, it further includes an insulating shell, which is sleeved on the outside of the battery cell and fixedly connected to the battery cell, and both the insulating shell and the battery cell can be accommodated within the receiving cavity.

[0010] As a preferred embodiment of a cylindrical battery support module, the CCS assembly includes a support and a busbar attached to the surface of the support. The support is fastened to the crossbeam, and the busbar can be electrically connected to the positive and negative terminals of the battery cell.

[0011] As a preferred embodiment of a cylindrical battery bracket module, one of the insulating shell and the bracket is provided with a first buckle, and the other is provided with a first locking hole, wherein the first buckle is engaged in the first locking hole.

[0012] As a preferred embodiment of a cylindrical battery support module, it also includes an insulating top cover, which is disposed on the side of the support away from the battery cell.

[0013] As a preferred embodiment of a cylindrical battery bracket module, one of the insulating top cover and the bracket is provided with a second buckle, and the other is provided with a second locking hole, wherein the second buckle is engaged in the second locking hole.

[0014] As a preferred embodiment of a cylindrical battery bracket module, one end of the bracket is provided with an output electrode protection cover.

[0015] As a preferred embodiment of a cylindrical battery bracket module, the bracket has lugs on both sides of its edge, and fasteners are sequentially inserted through the lugs and the crossbeam to fix the bracket to the crossbeam.

[0016] As a preferred embodiment of a cylindrical battery bracket module, structural adhesive is provided on the insulating shell, and the battery cell is fixed inside the insulating shell by the structural adhesive.

[0017] As a preferred embodiment of a cylindrical battery support module, the number of the receiving cavities is set to multiple, and the multiple receiving cavities are arranged side by side along the length direction of the crossbeam;

[0018] The number of insulating shells is set to be multiple and corresponds to the number of receiving cavities. Each of the multiple insulating shells can be accommodated in the corresponding receiving cavity, and each insulating shell contains one battery cell.

[0019] According to another aspect of the present invention, an object of the present invention is to provide a cylindrical battery module that improves the space utilization rate within the battery housing.

[0020] To achieve the above objectives, the present invention is implemented through the following technical solution:

[0021] A cylindrical battery module includes a battery box and a cylindrical battery support module as described in any of the preceding claims.

[0022] The beneficial effects of this invention are as follows:

[0023] This invention provides a cylindrical battery support module with a simple and reasonable structure. A crossbeam is welded and fixed inside the battery box, enhancing the structural strength of the battery box. A receiving cavity is provided on the crossbeam, allowing the battery cells to be insulated and housed within the cavity. A CCS (Computer-Controlled System) module can be fastened to the crossbeam and electrically connected to the battery cells for output voltage. This cylindrical battery support module allows the assembled battery cells to be installed on the crossbeam of the battery box, making the crossbeam an integral part of the module. This fully utilizes the space occupied by the crossbeam within the battery box, improving space utilization.

[0024] The present invention also provides a cylindrical battery module, which, by means of the above-mentioned cylindrical battery bracket module, can make full use of the space inside the battery box and improve the space utilization rate of the battery box. Attached Figure Description

[0025] To more clearly and understandably illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the cylindrical battery bracket module provided in an embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the cylindrical battery bracket module provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the structure of the insulating shell provided in an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of a portion of the support provided in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram of the structure of a partially insulating top cover provided in an embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the output electrode protection cover provided in an embodiment of the present invention.

[0032] In the picture:

[0033] 1. Crossbeam; 11. Receiving cavity; 2. Insulating shell; 21. First snap-fit; 3. CCS assembly; 31. Bracket; 311. First snap-fit ​​hole; 312. Second snap-fit; 313. Lug; 314. Third snap-fit ​​hole; 315. Fourth snap-fit; 32. Busbar; 4. Battery cell; 5. Insulating top cover; 51. Second snap-fit ​​hole; 6. Output electrode protection cover; 61. Third snap-fit; 7. Structural adhesive. Detailed Implementation

[0034] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] 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.

[0037] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0038] This embodiment provides a cylindrical battery module, including a battery box and a cylindrical battery support module. The cylindrical battery support module is located inside the battery box, making full use of the space inside the battery box and improving space utilization.

[0039] Specifically, such as Figure 2 As shown, the cylindrical battery support module provided in this embodiment includes a crossbeam 1 and a CCS assembly 3. The crossbeam 1 is welded and fixed inside the battery box, and a receiving cavity 11 is provided on the crossbeam 1. The battery cell 4 is insulated and housed in the receiving cavity 11. The CCS assembly 3 is fastened to the crossbeam 1 and electrically connected to the battery cell 4. It should be noted that the crossbeam 1 is fixed inside the battery box by pre-welding to enhance the structural strength of the battery box.

[0040] The cylindrical battery bracket module provided in this embodiment has a simple and reasonable structure. The CCS component 3 can be fastened to the crossbeam 1 to encapsulate the battery cell 4 in the receiving cavity 11. The CCS component 3 is electrically connected to the battery cell 4 for output voltage. This cylindrical battery bracket module can assemble the battery cell 4 and install it on the crossbeam 1 of the battery box, making the crossbeam 1 a part of the cylindrical battery bracket module. This makes full use of the space occupied by the crossbeam 1 inside the battery box and improves space utilization.

[0041] Furthermore, such as Figure 2 As shown, the cylindrical battery support module provided in this embodiment also includes an insulating shell 2. The insulating shell 2 is sleeved on the outside of the battery cell 4 and fixedly connected to the battery cell 4. Both the insulating shell 2 and the battery cell 4 can be accommodated within the receiving cavity 11. The insulating shell 2, sleeved on the outside of the battery cell 4, serves to assist in fixing the battery cell 4 and also provides insulation, preventing short circuits within the cylindrical battery module that could affect its normal operation. Of course, in other embodiments, insulation can also be achieved by coating the outer surface of the battery cell 4 with an insulating material.

[0042] refer to Figure 3 It should be noted that the insulating shell 2 is a hollow cylindrical structure with an inner diameter slightly larger than the outer diameter of the battery cell 4, allowing the battery cell 4 to be housed within the insulating shell 2. Notches are provided on two opposite sides of the insulating shell 2 to reduce its weight and achieve a lightweight design. To ensure the structural strength of the insulating shell 2, the notches on both sides are not connected. Furthermore, the receiving cavity 11 has a circular cross-sectional shape with an inner diameter slightly larger than the outer diameter of the insulating shell 2, allowing the insulating shell 2 to be housed within the receiving cavity 11. The height of the insulating shell 2 is slightly greater than the height of the receiving cavity 11, and the height of the battery cell 4 is slightly greater than the height of the insulating shell 2. After assembly, one end of the battery cell 4 can protrude outside the receiving cavity 11 to ensure full contact with the CCS assembly 3 for electrical connection.

[0043] Furthermore, such as Figure 2 As shown, the number of receiving cavities 11 is set to multiple, and the multiple receiving cavities 11 are arranged side by side along the length direction of the crossbeam 1; the number of insulating shells 2 is set to multiple and corresponds to the number of receiving cavities 11, and each of the multiple insulating shells 2 can be accommodated in the corresponding receiving cavity 11. Each insulating shell 2 accommodates one battery cell 4, so that multiple battery cells 4 can be assembled at one time, further improving the space utilization rate. The specific number of receiving cavities 11 and insulating shells 2 is not limited here, and can be adaptively selected according to actual needs.

[0044] It should be noted that during assembly, the CCS component 3, multiple insulating shells 2, and multiple battery cells 4 are first assembled into a battery module, and then the battery module is placed in the receiving cavity 11. One battery module or multiple battery modules can be placed on the same crossbeam 1, depending on actual needs.

[0045] Preferably, the sides of two adjacent insulating shells 2 are connected to form an integral structure, and correspondingly, the multiple receiving cavities 11 are interconnected to facilitate the placement of the insulating shells 2. By adopting this arrangement, the assembly steps between the insulating shells 2 can be reduced during assembly, saving manufacturing costs, making the structure more robust and durable, and making installation more convenient and quick. In addition, the use of connectors is reduced, thereby reducing the overall weight of the insulating shells 2.

[0046] Furthermore, such as Figure 2 As shown, structural adhesive 7 is applied to the insulating shell 2, and the battery cell 4 is fixed inside the insulating shell 2 by the structural adhesive 7. The application of structural adhesive 7 is relatively simple, provides a firm connection, and ensures uniform stress distribution, preventing damage to the insulating shell 2 and the battery cell 4. Preferably, for ease of operation, the structural adhesive 7 is applied to the outer wall of the insulating shell 2, and partially applied to the notch position of the insulating shell 2, with the battery cell 4 exposed from the notch, thereby achieving bonding and fixation between the battery cell 4 and the insulating shell 2.

[0047] Furthermore, such as Figure 2 As shown, the CCS assembly 3 includes a bracket 31 and busbars 32 attached to the surface of the bracket 31. The bracket 31 is fastened to the crossbeam 1. The busbars 32 are electrically connected to the positive and negative terminals of the battery cells 4, respectively, to electrically connect multiple cylindrical battery cells 4 and achieve voltage output. In this embodiment, two busbars 32 are provided, respectively attached to opposite sides of the bracket 31, and respectively electrically connected to the positive and negative terminals of the battery cells 4. Of course, in other embodiments, only one busbar 32 may be provided, with one busbar 32 electrically connected to both the positive and negative terminals of the battery cells 4. It should be noted that in this embodiment, voltage output is achieved by connecting the acquisition line to the busbar 32. Of course, in other embodiments, the CCS assembly 3 also includes an FPC board, which is connected to the busbar 32 to achieve voltage output; either method can be chosen.

[0048] Specifically, continue to refer to Figure 2The bracket 31 has a U-shaped structure, and its width matches the width of the crossbeam 1, allowing the bracket 31 to be fastened onto the crossbeam 1. After the bracket 31 is fastened onto the crossbeam 1, its lower end face is attached to the upper end face of the battery cell 4, and the bracket 31 has corresponding clearance holes to expose the positive and negative terminals of the battery cell 4. Two busbars 32 have an approximately L-shaped structure, respectively located on both sides of the bracket 31 and attached to the surface of the bracket 31. The two busbars 32 are respectively attached to the positive and negative terminals of the battery cell 4 to achieve electrical connection. This arrangement makes the overall structure of the CCS module 3 compact and saves space.

[0049] Preferably, such as Figure 4 As shown, multiple fourth buckles 315 are respectively provided at the bottom ends of both sides of the bracket 31, and the multiple fourth buckles 315 are spaced apart along the length direction of the bracket 31. The sides of the multiple fourth buckles 315 can all abut against the bottom end of the busbar 32 to achieve the supporting function of the busbar 32 and ensure the stability of the structure.

[0050] Furthermore, such as Figure 3 and Figure 4 As shown, the insulating shell 2 and the bracket 31 are snap-fit ​​connected. Specifically, one of the insulating shell 2 and the bracket 31 is provided with a first buckle 21, and the other is provided with a first locking hole 311, with the first buckle 21 snapping into the first locking hole 311. By using a snap-fit ​​method, a stable connection between the insulating shell 2 and the bracket 31 can be achieved, and disassembly and assembly are convenient, avoiding the use of connecting parts and saving costs. Of course, in other embodiments, the insulating shell 2 and the bracket 31 can also be connected by riveting or fasteners. Alternatively, the insulating shell 2 can also be snapped into the receiving cavity 11.

[0051] Preferably, such as Figure 3 As shown, multiple first latches 21 and multiple first locking holes 311 are configured, with each first latch 21 corresponding to a different first locking hole 311, and all first latches 21 can extend into their respective first locking holes 311. This configuration further improves the stability of the connection between the insulating shell 2 and the bracket 31. The specific number of first latches 21 and first locking holes 311 is not limited here and can be adapted to meet actual needs.

[0052] Furthermore, such as Figure 4 As shown, lugs 313 are provided on both sides of the bracket 31. Fasteners are sequentially inserted through the lugs 313 and the crossbeam 1 to fix the bracket 31 to the crossbeam 1. Optionally, the fasteners are bolts or screws, which improves the connection strength and stability between the bracket 31 and the crossbeam 1, enhances the overall structural strength of the cylindrical battery module, and extends the service life of the cylindrical battery module.

[0053] Preferably, continue to refer to Figure 4 Each side of the bracket 31 has multiple lugs 313, spaced apart along the length of the bracket 31. Correspondingly, multiple fasteners are also provided, with one fastener for each lug 313. This arrangement further improves the connection strength between the bracket 31 and the crossbeam 1. The specific number of lugs 313 and fasteners is not limited here and can be selected adaptively according to actual needs.

[0054] Furthermore, such as Figure 2 As shown, the cylindrical battery support module provided in this embodiment also includes an insulating cover 5, which is disposed on the side of the support 31 away from the battery cell 4. Exemplarily, the insulating cover 5 is a mica board or a PC blister board. The insulating cover 5 not only provides insulation to prevent short circuits in the cylindrical battery module, but also protects the CCS component 3, extending the service life of the cylindrical battery module and improving its operational reliability.

[0055] Furthermore, such as Figure 4 and Figure 5 As shown, the insulating cover 5 and the bracket 31 are snap-fit ​​connected. Specifically, one of the insulating cover 5 and the bracket 31 is provided with a second buckle 312, and the other is provided with a second locking hole 51, with the second buckle 312 snapping into the second locking hole 51. By adopting this method, a stable connection between the insulating cover 5 and the bracket 31 can be achieved, and disassembly and assembly are convenient, avoiding the use of connecting parts and saving costs. Of course, in other embodiments, the insulating cover 5 and the bracket 31 can also be connected by riveting or fasteners.

[0056] Preferably, the number of second latches 312 is set to multiple, and the number of second latch holes 51 is also set to multiple, with each of the multiple second latches 312 corresponding to a different second latch hole 51, and each of the multiple second latches 312 can extend into its corresponding second latch hole 51. This arrangement further improves the stability of the connection between the insulating shell 2 and the bracket 31. The specific number of second latches 312 and second latch holes 51 is not specifically limited here and can be adapted according to actual needs.

[0057] Furthermore, such as Figure 2 As shown, one end of the bracket 31 is provided with an output electrode protection cover 6 to protect the battery output electrode. Specifically, one end of the bracket 31 is provided with a groove, and after the output electrode protection cover 6 is placed in the groove, its upper surface is approximately flush with the upper surface of the bracket 31, which makes the overall structure more compact and saves space.

[0058] Preferably, such as Figure 4and Figure 6 As shown, the output electrode protection cover 6 and the bracket 31 are snap-fit ​​connected. Specifically, one of the output electrode protection cover 6 and the bracket 31 is provided with a third buckle 61, and the other is provided with a third locking hole 314, with the third buckle 61 snapping into the third locking hole 314. By adopting this method, a stable connection can be achieved between the output electrode protection cover 6 and the bracket 31, and disassembly and assembly are convenient, avoiding the use of connecting parts and saving costs. Of course, in other embodiments, the output electrode protection cover 6 and the bracket 31 can also be connected by riveting or fasteners.

[0059] More preferably, the number of third latches 61 is set to multiple, and the number of third latch holes 314 is also set to multiple, with each of the multiple third latches 61 corresponding to a specific third latch hole 314, and all of the multiple third latches 61 can extend into the corresponding third latch hole 314. By adopting this arrangement, the stability of the connection between the output electrode protection cover 6 and the bracket 31 can be further improved. The specific number of third latches 61 and third latch holes 314 is not specifically limited here, and can be adaptively selected according to actual needs.

[0060] 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 of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cylindrical battery holder module, characterized in that, include: A crossbeam (1) is welded and fixed inside the battery box. A receiving cavity (11) is provided on the crossbeam (1), and the battery cell (4) is insulated and placed inside the receiving cavity (11). The CCS assembly (3) includes a bracket (31) and a busbar (32) attached to the surface of the bracket (31). The bracket (31) is fastened to the crossbeam (1), and the busbar (32) can be electrically connected to the positive and negative terminals of the battery cell (4). The bracket (31) has a U-shaped structure and its two side walls are located outside the crossbeam (1). There are two busbars (32), both of which are L-shaped structures. The two busbars (32) are respectively located on both sides of the bracket (31) and are attached to the outer surface of the side wall of the bracket (31).

2. The cylindrical battery bracket module according to claim 1, characterized in that, It also includes an insulating shell (2), which is fitted over the battery cell (4) and fixedly connected to the battery cell (4). Both the insulating shell (2) and the battery cell (4) can be accommodated in the receiving cavity (11).

3. The cylindrical battery bracket module according to claim 2, characterized in that, One of the insulating shell (2) and the bracket (31) is provided with a first buckle (21), and the other is provided with a first buckle hole (311). The first buckle (21) is engaged in the first buckle hole (311).

4. The cylindrical battery bracket module according to claim 1, characterized in that, It also includes an insulating cover (5) which is placed on the side of the bracket (31) away from the cell (4).

5. The cylindrical battery bracket module according to claim 4, characterized in that, One of the insulating cover (5) and the bracket (31) is provided with a second buckle (312), and the other is provided with a second buckle hole (51). The second buckle (312) is engaged in the second buckle hole (51).

6. The cylindrical battery bracket module according to claim 1, characterized in that, One end of the bracket (31) is provided with an output electrode protection cover (6).

7. The cylindrical battery bracket module according to claim 1, characterized in that, The bracket (31) has lugs (313) on both sides of its edge. Fasteners are inserted through the lugs (313) and the crossbeam (1) in sequence to fix the bracket (31) to the crossbeam (1).

8. The cylindrical battery bracket module according to claim 2, characterized in that, The insulating shell (2) is provided with structural adhesive (7), and the battery cell (4) is fixed inside the insulating shell (2) by the structural adhesive (7).

9. The cylindrical battery bracket module according to claim 2, characterized in that, The number of the receiving cavities (11) is set to multiple, and the multiple receiving cavities (11) are arranged side by side along the length direction of the crossbeam (1); The number of insulating shells (2) is set to be multiple and corresponds to the number of receiving cavities (11). Multiple insulating shells (2) can be accommodated in the corresponding receiving cavity (11), and each insulating shell (2) contains one battery cell (4).

10. A cylindrical battery module, comprising a battery case, characterized in that, It also includes the cylindrical battery bracket module as described in any one of claims 1-9.

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