Support plate, square shell module busbar and battery module
By setting a tearable area and through holes on the carrier plate, the bus alignment problem caused by the cumulative tolerance of the multi-terminal spacing of the battery cell was solved, thus improving the product yield.
Patent Information
- Application Number
- CN202522579658.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-04
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-04
AI Technical Summary
In the existing technology, the prismatic module structure with a small thickness and multiple cells has a large cumulative tolerance in the spacing between the multiple poles of the cells, which causes the center hole of the bus plate and the center hole of the pole to be misaligned, resulting in welding defects and affecting the product yield.
Design a carrier plate including first and second bar plate areas, each bar plate area containing multiple sub-areas, and setting a tearable area and through holes between adjacent sub-areas. By tearing open the tearable area, the bus position can be adjusted, the cumulative tolerance of the multi-terminal spacing of the battery cell can be reduced, and the alignment problem between the center hole of the bar plate and the center hole of the terminal post can be improved.
By adjusting the position of the busbar, the misalignment between the center hole of the busbar plate and the center hole of the electrode post was reduced, thus improving the product yield.
Smart Images
Figure CN224946934U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of battery energy storage, and in particular to a carrier plate, a square-shell module busbar, and a battery module. Background Technology
[0002] In the existing technology, for square-shell module structures with small thickness and multiple cells, the cumulative tolerance of the spacing between the multiple poles of the cells is large, which can cause the center hole of the bus plate and the center hole of the pole to be misaligned. This can easily cause defects such as weld misalignment and explosion points during welding, affecting the product yield. Utility Model Content
[0003] In order to solve the above-mentioned technical problems, or at least partially solve the above-mentioned technical problems, this utility model provides a carrier plate, a square shell module bus, and a battery module.
[0004] In a first aspect, this application provides a support plate, comprising: a first pad area and a second pad area, the first pad area and the second pad area being spaced apart in the width direction of the support plate; the first pad area comprising a plurality of first sub-areas, the plurality of first sub-areas being spaced apart in the length direction of the support plate; the second pad area comprising a plurality of second sub-areas, the plurality of second sub-areas being spaced apart in the length direction of the support plate; wherein, the first pad area comprises a first tearable area, the first tearable area being located between two adjacent first sub-areas, the first tearable area having a plurality of first through holes, the plurality of first through holes being spaced apart in the width direction of the support plate; the second pad area comprises a second tearable area, the second tearable area being located between two adjacent second sub-areas and connected to the first tearable area, the second tearable area having a plurality of second through holes, the plurality of second through holes being spaced apart in the width direction of the support plate.
[0005] According to the carrier plate provided in the embodiments of this application, when it is found that the center hole of the busbar plate and the center hole of the pole cannot be aligned, the first tearable area and the second tearable area can be torn apart to move and adjust the position of part of the busbar, thereby improving the situation where the center hole of the busbar plate and the center hole of the pole cannot be aligned.
[0006] It is understandable that the longer the overall length of the busbar, the greater the cumulative tolerance of the spacing between the multiple terminals of the battery cell. By setting up a connected first tearable area and a second tearable area, the carrier plate can be separated, thereby reducing the cumulative tolerance of the spacing between the multiple terminals of the battery cell and improving the situation where the center hole of the busbar plate and the center hole of the terminal cannot be aligned.
[0007] In one possible implementation of this application, there are multiple first tearable areas, which are spaced apart along the length of the support plate; there are also multiple second tearable areas, which are spaced apart along the length of the support plate; and each of the multiple second tearable areas corresponds to one of the multiple first tearable areas.
[0008] In one possible implementation of this application, the first through hole includes a first hole segment near the second bar plate area, and the diameter of the first hole segment decreases in the longitudinal direction of the support plate in the direction from the first bar plate area toward the second bar plate area.
[0009] In one possible implementation of this application, the first through hole includes a second hole segment away from the second bar area, wherein the diameter of the second hole segment decreases in the direction from the second bar area toward the first bar area along the length of the support plate.
[0010] In one possible implementation of this application, the second through hole includes a third hole segment near the first bar plate area, wherein the diameter of the third hole segment decreases in the length direction of the support plate in the direction from the second bar plate area toward the first bar plate area.
[0011] In one possible implementation of this application, the carrier plate further includes: a third tearable area, the third tearable area being located between the first tab area and the second tab area, one end of the third tearable area being connected to the first tearable area and the other end being connected to the second tearable area, the third tearable area being provided with a plurality of third through holes, the plurality of third through holes being spaced apart in the extending direction of the third tearable area.
[0012] In one possible implementation of this application, the support plate is provided with an explosion-proof valve hole, and the third tearable area passes through the explosion-proof valve hole.
[0013] In one possible implementation of this application, the distance between two adjacent first through holes in the width direction of the support plate is greater than or equal to 3 mm and less than or equal to 10 mm.
[0014] Secondly, this application provides a square-shell module busbar, including the carrier plate described in any of the above schemes; a plurality of first bars, each of which corresponds to a plurality of first sub-regions, with the first bars disposed in the first sub-regions; and a plurality of second bars, each of which corresponds to a plurality of second sub-regions, with the second bars disposed in the second sub-regions.
[0015] The technical effects of any design scheme in the second aspect can be seen in the technical effects of different design methods in the first aspect, and will not be repeated here.
[0016] Thirdly, this application also provides a battery module, including the square-shell module bus and multiple battery cells as described above; and a housing, wherein the square-shell module bus and multiple battery cells are disposed within the housing.
[0017] The technical effects of any design scheme in the third aspect can be found in the technical effects of different design methods in the second aspect, and will not be repeated here. Attached Figure Description
[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 A schematic diagram of a carrier plate provided for some embodiments of this application; Figure 2 for Figure 1 Enlarged view of point A in the middle.
[0021] Figure label: 100. Load-bearing plate; 110. First Bar Area; 111. First Sub-area; 112. First Tearable Area; 113. First Through Hole; 120. Second bar area; 121. Second sub-area; 122. Second tearable area; 123. Second through hole; 130. Third tearable area; 131. Third through hole. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.
[0024] In the existing technology, for square-shell module structures with small thickness and multiple cells, the cumulative tolerance of the spacing between the multiple poles of the cells is large, which can cause the center hole of the bus plate and the center hole of the pole to be misaligned. This can easily cause defects such as weld misalignment and explosion points during welding, affecting the product yield.
[0025] To resolve the above technical issues, please refer to Figure 1 and Figure 2 This application provides a battery module, which includes a square-shell module bus, multiple battery cells and a housing. The multiple battery cells are arranged in sequence, the square-shell module bus is located on one side of the terminal post of the multiple battery cells, and the square-shell module bus and the multiple battery cells are both located inside the housing.
[0026] The square-shell module busbar includes a carrier plate 100, multiple first pads, multiple second pads, and a data acquisition harness.
[0027] The support plate 100 is formed into a long strip-shaped structure. The support plate 100 includes a first bar area 110 and a second bar area 120. The first bar area 110 and the second bar area 120 are spaced apart in the width direction of the support plate 100. The first bar area 110 includes a plurality of first sub-areas 111. The plurality of first sub-areas 111 are spaced apart in the length direction of the support plate 100. The second bar area 120 includes a plurality of second sub-areas 121. The plurality of second sub-areas 121 are spaced apart in the length direction of the support plate 100.
[0028] Multiple first pads correspond one-to-one with multiple first sub-regions 111, and multiple second pads correspond one-to-one with multiple second sub-regions 121. It can be understood that both the first and second pads are used to connect the electrode posts of adjacent cells. Therefore, the first and second pads are staggered in the width direction of the carrier plate 100.
[0029] A connection area is provided between the first bar area 110 and the second bar area 120. The data acquisition harness is located in the connection area. The connection area is provided with multiple explosion-proof valve holes, which correspond to the explosion-proof valves of multiple battery cells. The multiple explosion-proof valve holes are spaced apart along the length of the support plate 100.
[0030] The first bar area 110 includes a first tearable area 112, which is located between two connected first sub-areas 111. The first tearable area 112 is provided with a plurality of first through holes 113, which are spaced apart in the width direction of the support plate 100. Thus, by providing a plurality of first through holes 113, the structural strength of the first tearable area 112 is reduced, and the operator can tear the first tearable area 112 by hand.
[0031] The second tearable area 120 includes a second tearable area 122, which is located between two adjacent second sub-areas 121 and connected to the first tearable area 112. The second tearable area 122 is provided with a plurality of second through holes 123, which are spaced apart in the width direction of the support plate 100. Thus, by providing a plurality of second through holes 123, the structural strength of the second tearable area 122 is reduced, and the operator can tear the second tearable area 122 by hand.
[0032] In this way, when it is found that the center hole of the busbar swivel and the center hole of the pole are not aligned, the first tearable area 112 and the second tearable area 122 can be torn apart to move and adjust the position of part of the busbar, thereby improving the situation where the center hole of the busbar swivel and the center hole of the pole are not aligned.
[0033] It is understandable that the longer the overall length of the busbar, the greater the cumulative tolerance of the spacing between the multiple terminals of the battery cell. By setting the first tearable area 112 and the second tearable area 122 connected together, the carrier plate 100 can be separated, thereby reducing the cumulative tolerance of the spacing between the multiple terminals of the battery cell and improving the situation where the center hole of the busbar plate and the center hole of the terminal cannot be aligned.
[0034] In some embodiments of this application, there are multiple first tearable areas 112 and multiple second tearable areas 122. The multiple first tearable areas 112 are spaced apart along the length of the support plate 100, and the multiple second tearable areas 122 are spaced apart along the length of the support plate 100. The multiple second tearable areas 122 correspond one-to-one with the multiple first tearable areas 112.
[0035] Specifically, the distance between adjacent first tearable areas 112 can be 15mm. Taking the carrier plate 100 corresponding to 12 cells as an example, in the length direction of the carrier plate, three first sub-areas 111 and one first tearable area 112 are arranged in a cycle, and three second sub-areas 121 and one second tearable area 122 are arranged in a cycle.
[0036] In this way, by setting multiple connected first tearable areas 112 and second tearable areas 122, the carrier plate 100 can be divided into multiple parts, further reducing the cumulative tolerance of the spacing between the multiple poles of the battery cell, and further improving the situation where the center hole of the busbar plate and the center hole of the pole cannot be aligned.
[0037] In some embodiments of this application, the first through hole 113 may be formed as an elongated hole extending in the width direction of the support plate 100, and the second through hole 123 may be formed as an elongated hole extending in the width direction of the support plate 100.
[0038] In the specific implementation process, the first through hole 113 located at the edge of the support plate 100 can extend to the edge of the support plate 100 to form a notch, which makes it easier for operators to tear it open.
[0039] Furthermore, the second through hole 123 located at the edge of the support plate 100 can extend to the edge of the support plate 100 to form a notch.
[0040] In some embodiments of this application, the first through hole 113 includes a first hole segment near the second tab area 120. In the direction from the first tab area 110 to the second tab area 120, the diameter of the first hole segment decreases along the length of the support plate 100. Specifically, the first hole segment can be formed in a tapered shape, thus concentrating the operator's force at the tail end of the first hole segment, making it easier to tear the first tearable area 112 in the direction from the first tab area 110 to the second tab area 120.
[0041] Furthermore, the first through-hole 113 includes a second hole segment located away from the second tab area 120, and the diameter of the second hole segment decreases along the length of the support plate 100 in the direction from the second tab area 120 toward the first tab area 110. This makes it easier for an operator to tear the first tearable area 112 in the direction from the second tab area 120 toward the first tab area 110.
[0042] Furthermore, the second through-hole 123 includes a third hole segment near the first tab area 110, wherein the diameter of the third hole segment decreases along the length of the support plate 100 in the direction from the second tab area 120 toward the first tab area 110. Specifically, the third hole segment is formed in a tapered shape, so that the operator can more easily tear the second tearable area 122 in the direction from the second tab area 120 toward the first tab area 110.
[0043] Furthermore, the second through hole 123 also includes a fourth hole segment away from the first bar area 110. In the direction from the first bar area 110 toward the second bar area 120, the diameter of the fourth hole segment in the length direction of the support plate 100 is reduced, making it easier for the operator to tear the second tearable area 122 in the direction from the first bar area 110 toward the second bar area 120.
[0044] In some embodiments of this application, the support plate 100 is further provided with a third tearable area 130. The third tearable area 130 is located in the connecting area. One end of the third tearable area 130 is connected to the first tearable area 112, and the other end is connected to the second tearable area 122. The third tearable area 130 is provided with a plurality of third through holes 131, which are spaced apart in the extending direction of the third tearable area 130. Thus, by providing the third tearable area 130 to connect the first tearable area 112 and the second tearable area 122, the user can tear the support plate 100 by tearing the first tearable area 112 or the second tearable area 122.
[0045] The third tearable area 130 can extend along the length of the support plate 100, and the third through hole 131 can also be formed as an elongated hole that can extend along the length of the support plate 100. Specifically, the third tearable area 130 can pass through the explosion-proof valve hole, reducing the difficulty of opening the third through hole 131.
[0046] In order to ensure both the structural strength and tearability of the first tearable area 112, and the connection strength of the first tearable area 112, in the specific implementation process, the distance between two adjacent first through holes 113 is greater than or equal to 3mm and less than or equal to 10mm. Specifically, the distance between two adjacent first through holes 113 can be 3mm, 5mm, 8mm, or 10mm.
[0047] The distance between two adjacent first through holes 113 refers to the distance between the nearest end point or end face of the first through hole 1 to the first through hole 2, and the nearest end point or end face of the first through hole 2 to the first through hole 1, taking the two first through holes 113 as first through hole one and first through hole two as examples.
[0048] Furthermore, the distance between two adjacent second through holes 123 is greater than or equal to 3 mm and less than or equal to 10 mm.
[0049] Furthermore, the distance between two adjacent third through holes 131 is greater than or equal to 3mm and less than or equal to 10mm.
[0050] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0051] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features of the utility model herein.
Claims
1. A carrier plate applied to a square case module busbar, characterized in that, include: A first bar area and a second bar area are arranged at intervals in the width direction of the support plate. The first bar area includes a plurality of first sub-areas, which are arranged at intervals in the length direction of the support plate. The second bar area includes a plurality of second sub-areas, which are arranged at intervals in the length direction of the support plate. The first bar area includes a first tearable area, which is located between two adjacent first sub-areas. The first tearable area is provided with a plurality of first through holes, which are spaced apart in the width direction of the support plate. The second tearable area includes a second tearable area, which is located between two adjacent second sub-areas and connected to the first tearable area. The second tearable area is provided with a plurality of second through holes, which are spaced apart in the width direction of the support plate.
2. The carrier plate of claim 1, wherein, There are multiple first tearable areas, which are spaced apart along the length of the support plate. There are also multiple second tearable areas, which are spaced apart along the length of the support plate. Each of the multiple second tearable areas corresponds to one of the multiple first tearable areas.
3. The carrier plate of claim 1, wherein, The first through hole includes a first hole segment near the second bar plate area, and the diameter of the first hole segment decreases in the longitudinal direction of the support plate in the direction from the first bar plate area toward the second bar plate area.
4. The carrier plate of claim 3, wherein, The first through hole includes a second hole segment away from the second bar plate area, and the diameter of the second hole segment decreases in the direction from the second bar plate area toward the first bar plate area along the length of the support plate.
5. The carrier plate of claim 1, wherein, The second through hole includes a third hole segment near the first bar plate area, wherein the diameter of the third hole segment decreases in the length direction of the support plate in the direction from the second bar plate area toward the first bar plate area.
6. The carrier plate of claim 1, wherein, Also includes: The third tearable area is located between the first peel area and the second peel area. One end of the third tearable area is connected to the first tearable area, and the other end is connected to the second tearable area. The third tearable area is provided with a plurality of third through holes, which are spaced apart in the extending direction of the third tearable area.
7. The carrier plate of claim 6, wherein, The support plate is provided with an explosion-proof valve hole, and the third tearable area passes through the explosion-proof valve hole.
8. The bearing plate according to claim 1, characterized in that, In the width direction of the support plate, the distance between two adjacent first through holes is greater than or equal to 3 mm and less than or equal to 10 mm.
9. A square-shell module busbar, characterized in that, include: The support plate according to any one of claims 1-8; Multiple first pads, each of which corresponds one-to-one with a multiple first sub-regions, with the first pad located in the first sub-region; Multiple second pads, each corresponding to a multiple second sub-region, with the second pad located in the second sub-region.
10. A battery module, characterized in that, include: The square-shell module bus and multiple battery cells as described in claim 9; The housing contains the square-shell module busbar and multiple battery cells.