Battery

Abstract

The utility model relates to the technical field of power batteries, and particularly discloses a battery which comprises a box body, a battery monomer and a CCS assembly, the box body comprises a cross beam; the CCS assembly comprises a supporting piece, a signal acquisition board and an acquisition piece; a supporting groove extending in the first direction is formed in the supporting piece, and the first direction is the extending direction of the cross beam; the supporting groove is formed above the cross beam; the signal acquisition board is laid on the supporting piece; a plurality of connecting arms are arranged on the side edge, in the first direction, of the signal acquisition board, and a buffer area is arranged on the signal acquisition board; the buffer area is arranged in the supporting groove; the collecting piece is arranged at the end, away from the signal collecting plate, of the connecting arm and connected with the single battery. In the scheme, the buffer area and the support groove can enhance the deformation capability of the support piece and the signal acquisition board and play a buffer role in the volume change process of the battery, so that the stress generated in the volume change process of the battery is effectively absorbed.

Description

Technical Field

[0001] This application relates to the field of power battery technology, and in particular to a battery. Background Technology

[0002] CCS (Cell Connection System) is a key component in battery modules. It mainly consists of signal acquisition components (such as wiring harnesses, FPCs, FFCs, etc.), plastic structural parts, copper and aluminum busbars, etc., which are connected into a whole through processes such as hot pressing or riveting.

[0003] In existing power battery modules, signal acquisition components are generally directly attached to the surface of the battery cell. As the volume of the battery cell changes during the charge and discharge cycle, such as when the battery cell expands, the signal acquisition components need to withstand corresponding stress, which leads to a high risk of breakage or poor contact of the signal acquisition components, affecting battery performance and safety. Utility Model Content

[0004] In view of this, the purpose of this application is to provide a battery that solves the problem of high risk of breakage or poor contact of signal acquisition components in existing power battery modules.

[0005] To achieve the above technical objectives, this application provides a battery, including: a housing, a battery cell, and a CCS module;

[0006] The housing includes crossbeams spaced apart to form at least two receiving cavities;

[0007] Multiple battery cells are respectively disposed in the two receiving cavities and constrained by the crossbeam, and adjacent battery cells are electrically connected through a busbar;

[0008] The CCS assembly is laid on multiple battery cells and includes a support, a signal acquisition board, and an acquisition unit;

[0009] The support member is provided with a support groove extending along a first direction, which is the extension direction of the crossbeam.

[0010] The support groove is disposed above the crossbeam;

[0011] The signal acquisition board is laid on the support member;

[0012] The signal acquisition board is provided with multiple connecting arms on its side along the first direction, and a buffer area is provided on the signal acquisition board.

[0013] The buffer area is disposed within the support groove;

[0014] The acquisition element is located at the end of the connecting arm away from the signal acquisition board, and the acquisition element is connected to the battery cell.

[0015] Furthermore, a plurality of limiting posts are provided in the support groove along the first direction;

[0016] The buffer area is provided with perforations;

[0017] The perforation is matched with the limiting post for limiting.

[0018] Furthermore, both the support member and the signal acquisition board extend across the crossbeam along a second direction, which is perpendicular to the first direction;

[0019] The signal acquisition board is provided with connecting arms on both sides of the crossbeam in the second direction;

[0020] The connecting arm extends along the second direction;

[0021] A second perforation is provided between the connecting arm and the buffer area near the crossbeam;

[0022] The support member is provided with a second limiting post that passes through the second through hole.

[0023] Furthermore, the connecting arm includes a first connecting arm;

[0024] The first connecting arm includes: an L-shaped arm and a bent arm;

[0025] One end of the L-shaped arm is connected to the signal acquisition board, and the other end extends sequentially along the first direction and the second direction before connecting to one end of the bent arm. The other end of the bent arm extends sequentially along the first direction and the second direction, with the second direction being perpendicular to the first direction.

[0026] The collecting element is located at the other end of the bent arm.

[0027] Furthermore, the signal acquisition board is provided with a clearance groove on its side along the first direction;

[0028] The first connecting arm is disposed within the clearance groove, and the acquisition element is spaced apart from the signal acquisition board.

[0029] Furthermore, the connecting arm includes a second connecting arm;

[0030] The second connecting arm includes an L-shaped portion and a bent portion;

[0031] One end of the L-shaped portion is connected to the signal acquisition board, and the other end extends sequentially along the second direction and the first direction before connecting to one end of the bent portion. The other end of the bent portion extends sequentially along the second direction and the first direction multiple times before connecting to the busbar. The second direction is perpendicular to the first direction.

[0032] Furthermore, the L-shaped portion is spaced apart from the signal acquisition board in the first direction;

[0033] The bent portion has several notches on its side along the first direction.

[0034] Furthermore, the buffer area is configured such that one end face of the signal acquisition board is recessed and the other end face of the signal acquisition board is protruding;

[0035] The protrusion extends into the support groove, and the side of the protrusion along its own protrusion direction abuts against the support member. The two ends of the protrusion along the second direction form a gap with the groove wall of the support groove. The second direction is perpendicular to the first direction.

[0036] A second buffer is provided between the two ends of the protrusion along the second direction and the signal acquisition board.

[0037] Furthermore, it includes: a first buffer;

[0038] The support member is provided with a recessed groove;

[0039] The first buffer is disposed in the sinking trough, and the support and the signal acquisition board are respectively connected on both sides.

[0040] Furthermore, the sinking groove is disposed at one end edge of the support member along the second direction, the second direction being perpendicular to the first direction;

[0041] The first buffer is disposed in the sinking groove and extends out of the sinking groove in the second direction to support the portion of the signal acquisition board that extends out of the support in the second direction;

[0042] The portion of the signal acquisition board extending out of the support member along the second direction is also connected to a second bent portion;

[0043] The second bend is used to install the connector.

[0044] As can be seen from the above technical solutions, this application provides a battery, including: a housing, battery cells, and a CCS assembly; the housing includes a crossbeam to divide the battery cells into at least two accommodating cavities; a plurality of battery cells are respectively disposed in the two accommodating cavities and constrained by the crossbeam, and adjacent battery cells are electrically connected through a busbar; the CCS assembly is laid on the plurality of battery cells and includes a support member, a signal acquisition board, and an acquisition member; the support member is provided with a support groove extending along a first direction, the first direction being the extension direction of the crossbeam; the support groove is disposed above the crossbeam; the signal acquisition board is laid on the support member; the signal acquisition board is provided with a plurality of connecting arms on its side along the first direction, and a buffer area is provided on the signal acquisition board; the buffer area is disposed within the support groove; the acquisition member is disposed at the end of the connecting arm away from the signal acquisition board, and the acquisition member is connected to the battery cell.

[0045] In this design, the buffer area and support groove can enhance the deformation capacity of the support components and signal acquisition board and play a buffering role during the battery volume change process. This effectively absorbs the stress generated during the battery volume change process and reduces the risk of adverse events such as separation of the acquisition components from the battery and breakage of the signal acquisition board. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, 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.

[0047] Figure 1 This is a perspective view of the overall structure of a battery provided in an embodiment of this application;

[0048] Figure 2 A partially enlarged perspective view of a battery provided in an embodiment of this application;

[0049] Figure 3 A partially enlarged top view of a battery provided in an embodiment of this application;

[0050] Figure 4 Another enlarged top view of a battery provided in an embodiment of this application;

[0051] Figure 5 An enlarged top view of the position of a battery connecting arm provided in an embodiment of this application;

[0052] Figure 6 An enlarged perspective view of the location of a battery support groove provided in an embodiment of this application;

[0053] Figure 7 An enlarged view of the edge position of a signal acquisition board in a battery along a second direction, provided in an embodiment of this application;

[0054] In the picture:

[0055] 10. Support component; 11. Second limiting post; 12. Support groove; 13. Limiting post; 14. Sinking groove;

[0056] 20. Signal acquisition board; 21. Buffer area; 211. Recess; 212. Protrusion; 22. Perforation; 23. Connecting arm; 231. First connecting arm; 232. L-shaped arm; 233. Bending arm; 234. Second connecting arm; 235. L-shaped part; 236. Bending part;

[0057] 30. Collected items;

[0058] 40. First buffer component;

[0059] 50. Busbar;

[0060] 60. Connectors;

[0061] x-axis direction: first direction; y-axis direction: second direction. Detailed Implementation

[0062] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0063] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0064] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable 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 the embodiments of this application according to the specific circumstances.

[0065] Please see Figures 1 to 3 This application provides a battery comprising: a housing, individual battery cells, and a CCS assembly; the housing includes a crossbeam 100 to divide the housing into at least two receiving cavities; multiple individual battery cells (not shown) are respectively disposed within the two receiving cavities and constrained by the crossbeam 100, with adjacent individual battery cells electrically connected via a busbar 50; the CCS assembly is laid on the multiple individual battery cells. The crossbeam 100, disposed within the housing, improves the housing's strength and also serves to constrain the individual battery cells. In this case, the crossbeam is positioned at both ends of the multiple individual battery cells to fix them, thereby improving overall space utilization. Specifically, the two receiving cavities are located on either side of the crossbeam 100 along a second direction y, wherein the second direction is... Figure 2 As shown in the y-axis direction. Where multiple battery cells are arranged on one side of the crossbeam 100 along the second direction, the battery cells located on the same side of the crossbeam can also be electrically connected through the busbar 50.

[0066] In this embodiment, the CCS component includes: a support 10, a signal acquisition board 20, and an acquisition component 30.

[0067] The support member 10 is provided with a support groove 12 extending along a first direction; the first direction x is the extension direction of the crossbeam 100, specifically as follows: Figure 2 As shown in the x-axis direction. The support groove 12 is positioned above the crossbeam. A signal acquisition board 20 is laid on the support member 10; multiple connecting arms 23 are provided on the side of the signal acquisition board 20 along the first direction, and a buffer area 21 is provided on the signal acquisition board 20; the buffer area 21 is located within the support groove 12. Acquisition components 30 are located at the ends of the connecting arms 23 away from the signal acquisition board 20, and the acquisition components 30 are connected to individual battery cells. Through the acquisition components 30 connected to the individual battery cells, the voltage and temperature information of the individual battery cells are acquired. Multiple connecting arms 23 can be arranged along the second direction y, and multiple connecting arms 23 connect to multiple acquisition components 30, thereby acquiring information from multiple individual battery cells.

[0068] The signal acquisition board 20 is a flexible printed circuit board capable of connecting to external circuits. The support member 10 serves as a structure for mounting the signal acquisition board 20 and can be a board. In one embodiment, the support member 10 can be a vacuum-formed panel outside the power battery module.

[0069] The applicant discovered that during the charging and discharging process of individual battery cells, the individual battery cells are prone to expansion. Since multiple individual battery cells will expand, and since the individual battery cells are located on both sides of the crossbeam 100 along the second direction, the expansion of multiple individual battery cells on both sides of the crossbeam 100 is superimposed, resulting in the area of ​​the CCS module laid on multiple individual battery cells corresponding to the crossbeam 100 being the area with the greatest degree of expansion, which can easily lead to damage to the CCS module.

[0070] In this embodiment, the buffer area 21 and support groove 12 provided on the support member 10 above the crossbeam 100 can enhance the deformation buffering capacity of the support member 10 and the signal acquisition board 20 in this area, so as to absorb the stress generated by the expansion of the battery cell, reduce the risk of damage to the signal acquisition board 20, and thus extend the service life of the signal acquisition board 20.

[0071] It should be noted that the acquisition component 30 can be used to acquire electrical signals from the battery module. For example, the acquisition component 30 is a negative temperature coefficient thermistor. The acquisition component 30 can be connected to the battery cell by abutment. Correspondingly, the support 10 and the signal acquisition board 20 are provided with through holes for the acquisition component 30 to pass through and abut against the battery cell. The acquisition component 30 can also be a conductive sheet to acquire the voltage information of the battery cell. The acquisition component 30 can also be connected to the battery cell by adhesive bonding, welding, or other methods, which are not limited in this application.

[0072] In this embodiment, the connecting arm 23 can enhance the anti-expansion capability of the acquisition component 30 and reduce the risk of acquisition failure caused by the expansion of the battery cell due to the disconnection between the acquisition component 30 and the signal acquisition board 20.

[0073] In one embodiment, see Figure 4 The signal acquisition board 20 is provided with multiple buffer areas 21, and the multiple buffer areas 21 are evenly spaced.

[0074] Multiple evenly distributed buffer areas 21 enable the signal acquisition board 20 to have good overall deformation capacity and avoid local stress concentration. Correspondingly, the support member 10 is provided with support grooves 12 for the multiple buffer areas 21 to be inserted one by one, so as to improve the reliability of the connection between the signal acquisition board 20 and the support member 10.

[0075] In practical applications, the direction of expansion of a single battery cell is generally fixed. Therefore, multiple buffer regions 21 can be spaced apart along the expansion direction. Furthermore, the deformation direction of the buffer regions 21 is parallel to the expansion direction. In this embodiment, the multiple buffer regions 21 are spaced apart along the second direction y.

[0076] In this embodiment, the signal acquisition board 20 is elongated and is disposed on the support member 10 along the expansion direction of the battery cell, that is, the length direction of the signal acquisition board 20 is parallel to the expansion direction.

[0077] In one embodiment, such as Figure 2 As shown, multiple limiting posts 13 are provided in the support groove 12 along the first direction; a through hole 22 is provided on the buffer area 21; the through hole 22 is matched with the limiting post 13 for limiting.

[0078] When the dimensions of the perforation 22 and the limiting post 13 are configured to be the same, the relative positions of the signal acquisition board 20 and the support member 10 are fixed after the limiting post 13 is inserted into the perforation 22, so as to prevent relative displacement between the two during expansion.

[0079] When the dimensions of the perforation 22 and the limiting post 13 are configured such that the perforation 22 is slightly larger than the limiting post 13, both can still limit the signal acquisition board 20 and the support member 10 to reduce their offset.

[0080] The perforation 22 and the limiting post 13 can be fixed by hot riveting to improve the connection strength between the signal acquisition board 20 and the support 10 and prevent the risk of tearing of the signal acquisition board 20.

[0081] In one embodiment, both the support member 10 and the signal acquisition board 20 span the crossbeam along the second direction y, which is perpendicular to the first direction x. The signal acquisition board 20 is provided with connecting arms 23 on both sides of the crossbeam in the second direction y. The connecting arms 23 extend along the second direction y. A second through hole 24 is provided between the connecting arm 23 near the crossbeam and the buffer area 21. A second limiting post 11 is provided on the support member 10 that passes through the second through hole 24.

[0082] As mentioned above, the second direction y is the expansion direction of the battery cell; in this embodiment, the connecting arm 23 extends along the second direction y so that when the battery cell expands, the connecting arm 23 can absorb a certain amount of expansion energy, thereby improving the stability of the acquisition process of the acquisition device 30.

[0083] Furthermore, refer to Figure 2As shown, the second limiting post 11 and the second through hole 24 between the connecting arm 23 near the crossbeam and the buffer area 21 can further reduce the relative displacement between the support member 10 and the signal acquisition board 20 when the connecting arm 23 deforms, further improving the connection reliability between the support member 10 and the signal acquisition board 20, while minimizing the risk of the acquisition member 30 being arched. The connecting arm 23 near the crossbeam is the connecting arm 23 adjacent to the crossbeam. On the same signal acquisition board 20, the connecting arms 23 near the crossbeam can be respectively set on both sides of the crossbeam, and a second through hole 24 can be provided between each connecting arm 23 near the crossbeam and the buffer area 21.

[0084] In one embodiment, see Figure 5 The connecting arm 23 includes a first connecting arm 231; the first connecting arm 231 includes an L-shaped arm 232 and a bent arm 233; one end of the L-shaped arm 232 is connected to the signal acquisition board 20, and the other end extends sequentially along the first direction and the second direction and then connects to one end of the bent arm 233; the bent arm 233 extends sequentially along the first direction x and the second direction y and then connects to the battery cell.

[0085] Specifically, in this embodiment, the L-shaped arm 232 connects to the edge of the signal acquisition board 20 along the first direction x to improve the degree of freedom of the acquisition component 30 in the first direction x; similarly, the bending arm 233 extends along the first direction x and the second direction y to improve the degree of freedom of the acquisition component 30 in the first direction x and the second direction y, thereby enhancing the buffering effect of the connecting arm 23.

[0086] In one embodiment, such as Figure 5 As shown, a clearance groove 26 is provided on the side of the signal acquisition board 20 along the first direction; the first connecting arm 231 is disposed in the clearance groove 26, and the acquisition component 30 is spaced apart from the signal acquisition board 20.

[0087] The clearance groove 26 allows the acquisition component 30 to be cleared so that it can abut against the battery cell below, specifically, against the top cover of the battery cell. Simultaneously, the structure of the clearance groove 26 prevents the acquisition component 30 from directly contacting the signal acquisition board 20, avoiding the direct transfer of stress generated by the expansion and deformation of the signal acquisition board 20 to the acquisition component 30. Furthermore, the clearance groove 26 also reduces the overall width of the signal acquisition board 20, enabling connection with the battery cell within a limited space.

[0088] In another embodiment, such as Figure 5As shown, the connecting arm 23 includes a second connecting arm 234; the second connecting arm 234 includes an L-shaped portion 235 and a bent portion 236; one end of the L-shaped portion 235 is connected to the signal acquisition board 20, and the other end extends sequentially along the second direction y and the first direction x before connecting to one end of the bent portion 236; the other end of the bent portion extends sequentially along the second direction y and the first direction x multiple times before connecting to the busbar 50. Here, "multiple extensions" means that the bent portion 236 can extend continuously along the second direction y, the first direction x, the second direction y, and the first direction x to connect to the busbar 50, thereby increasing the extension length.

[0089] Specifically, the signal acquisition board 20 can be provided with various connecting arm structures on its side along the first direction x. One type of connecting arm structure is the first connecting arm 231 mentioned above, and the other is the second connecting arm 234 mentioned above. The second connecting arm 234 can be used to connect to the busbar 50.

[0090] In this embodiment, the second connecting arm 234 has the energy to deform along the first direction x and the second direction y, ensuring the stability of the connection between the signal acquisition board 20 and the busbar 50 when the battery cell expands.

[0091] In a more specific embodiment, the L-shaped portion 235 forms a gap 237 with the signal acquisition board 20 in the first direction x; the bent portion 236 is provided with a plurality of notches 238 on the side along the first direction x.

[0092] The interval 237 enhances the deformation capability of the second connecting arm 234 along the first direction x; the notch 238 enhances the deformation capability of the second connecting arm 234 along the second direction y, thereby further increasing the stability of the connection between the signal acquisition board 20 and the busbar 50. In this embodiment, the second connecting arm 234 is elastic, which on the one hand can deform with the expansion of the battery to absorb the displacement of the support member 10, and on the other hand can tighten the signal acquisition board 20 and the support member 10 to reduce the relative displacement between the signal acquisition board 20 and the support member 10.

[0093] In this embodiment, for ease of explanation, the example is taken where the signal acquisition board 20 is laid on the top surface of the support member 10. Figure 6 As shown, the buffer region 21 is configured such that a recess 211 is formed on the top surface of the signal acquisition board 20, and a protrusion 212 is formed on the bottom surface of the signal acquisition board 20. In one embodiment, the buffer region 21 can be formed by stamping the signal acquisition board 20 or similar methods.

[0094] refer to Figure 6The protrusion 212 extends into the support groove 12, and the side of the protrusion 212 along its own protrusion direction abuts against the groove wall of the support groove 12. The two ends of the protrusion 212 along the second direction y form a gap with the groove wall of the support groove 12. As described above, the protrusion 212 protrudes towards the bottom of the signal acquisition board 20, therefore the protrusion direction of the protrusion 212 is vertically downward; correspondingly, the side of the protrusion 212 is its bottom. The first direction x is perpendicular to the protrusion direction of the protrusion 212. In this embodiment, the gap between the two ends of the protrusion 212 and the groove wall of the support groove 12 means that the two sides of the protrusion 212 along the horizontal direction do not contact the groove wall of the support groove 12, thus forming a gap.

[0095] In this embodiment, the bottom of the protrusion 212 abuts against the bottom edge of the support groove 12, so that the support member 10 can provide support for the buffer area 21. As one implementation, the protrusion 212 can be a V-shaped structure; the support groove 12 can be a U-shaped structure, so that the bottom sides of the support groove 12 can avoid the sides of the protrusion 212.

[0096] In the buffer region 21, the recess 211 is perpendicular to the length of the signal acquisition board 20. The deformation direction of the buffer region 21 is perpendicular to the recess 211. Therefore, in this embodiment, the deformation direction of the buffer region 21, the length direction of the signal acquisition board 20, and the expansion direction are parallel.

[0097] When the battery volume changes, such as when a single battery cell expands and causes the support member 10 to expand, the buffer area 21 can act as a buffer, effectively absorbing the stress generated by the battery expansion, reducing the risk of damage to the signal acquisition board 20, and extending the service life of the signal acquisition board 20. Simultaneously, since the sides of the protrusion 212 do not contact the groove wall of the support groove 12, the buffer area 21 has superior deformation capacity in the horizontal direction, thus ensuring its deformation effect and avoiding tolerance accumulation between the signal acquisition board 20 and the support member 10 during actual production. On the other hand, during the recovery process after the battery cell expands, that is, during the contraction of the support member 10, the groove wall of the support groove 12 will not compress the protrusion 212, thus preventing damage to the protrusion 212.

[0098] Based on the above, the CCS component provided in this embodiment can effectively improve the deformation capability of the signal acquisition board 20, reduce the stress impact caused by battery expansion, and extend the service life of the signal acquisition board 20.

[0099] In other embodiments, the protrusion 212 may also be a V-shaped, trapezoidal, or wavy geometry suitable for stress dispersion. The width and depth of the protrusion 212 can be determined based on the expected cell expansion.

[0100] In one implementation, the bottom of the protrusion 212 can be connected to the support groove 12 by adhesive bonding.

[0101] In a further improved embodiment, a second buffer is provided between the support member 10 and the signal acquisition board 20. The second buffer is laid between the support member 10 and the signal acquisition board 20. Specifically, the second buffer can be disposed in the contact area between the support member 10 and the signal acquisition board 20.

[0102] The second buffer can be, for example, foam or an elastic silicone pad. The second buffer further enhances the buffering capacity between the support 10 and the signal acquisition board 20, thus dispersing pressure and reducing localized stress concentration.

[0103] In one embodiment, see Figure 5 It also includes: a first buffer 40; a sinking groove 14 is provided on the support 10; the first buffer 40 is disposed in the sinking groove 14, and its two sides are respectively connected to the support 10 and the signal acquisition board 20. The upper and lower sides of the first buffer 40 are connected to the support 10 and the signal acquisition board 20, thereby playing a buffering role.

[0104] In this embodiment, the sinking groove 14 and the first buffer 40 can increase the redundant length when the battery expands and shifts. Furthermore, the first buffer 40 can absorb some deformation, improving the deformation resistance of the signal acquisition board 20.

[0105] As one implementation method, such as Figure 5 As shown, the recessed groove 14 can be disposed at one end edge of the support member 10 along the second direction y. A first buffer member 40 is disposed in the recessed groove 14 and extends out of the recessed groove 14 along the second direction to support the portion of the signal acquisition board 20 extending out of the support member 10 along the second direction. The portion of the signal acquisition board 20 extending out of the support member 10 along the second direction is also connected to a second bent portion 25, thus forming the second bent portion 25 at the support member 10. The second bent portion 25 is used to connect the connector 60. Through the cooperation of the recessed groove 14 and the first buffer member 40, the first buffer member 40 can not only be disposed in the recessed groove 14 but also extend out of the recessed groove 14, increasing the contact area with the signal acquisition board 20. This effectively reduces the impact of battery expansion on the edge connection position of the signal acquisition board 20, avoids end friction between the signal acquisition board 20 and the support member 10, and ensures the stability of the connector 70 connection position.

[0106] In summary, the battery provided in this embodiment has the following effects:

[0107] 1) Improved overall reliability: The buffer area 21 in the signal acquisition board 20 can effectively disperse the stress caused by cell expansion, significantly reducing the risk of damage to the signal acquisition board 20 and improving the overall operational stability of the battery.

[0108] 2) Extend the lifespan of the whole and the battery module: Through the buffer area 21 and other buffer structures, mechanical stress damage can be reduced and material fatigue can be delayed, thereby extending the service life of the battery module.

[0109] 3) Reduce costs: By reducing the frequency of repairs and replacements due to damage to the signal acquisition board 20, maintenance costs can be reduced.

[0110] 4) Enhanced safety: This device can ensure the stability of the electrical connection between the battery cell and the signal acquisition board 20, reduce the risk of short circuits, and enhance the safety of battery use.

[0111] 5) Strong environmental adaptability: This device is more adaptable to different working conditions and environmental conditions, expanding its application range.

[0112] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although the present application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery, characterized in that, include: The enclosure, individual battery cells, and CCS modules; The housing includes crossbeams (100) spaced apart to form at least two receiving cavities; Multiple battery cells are respectively disposed in the two receiving cavities and constrained by the crossbeam (100), and two adjacent battery cells are electrically connected through a busbar (50); The CCS assembly is laid on multiple battery cells and includes a support (10), a signal acquisition board (20), and an acquisition component (30). The support member (10) is provided with a support groove (12) extending in a first direction, which is the extension direction of the crossbeam. The support groove (12) is disposed above the crossbeam (100); The signal acquisition board (20) is laid on the support member (10); The signal acquisition board (20) has multiple connecting arms (23) on its side along the first direction, and a buffer area (21) is provided on the signal acquisition board (20). The buffer area (21) is disposed within the support groove (12); The acquisition element (30) is located at the end of the connecting arm (23) away from the signal acquisition board (20), and the acquisition element (30) is connected to the battery cell.

2. The battery according to claim 1, characterized in that, Multiple limiting posts (13) are provided in the support groove (12) along the first direction; The buffer area (21) is provided with perforations (22); The perforation (22) is engaged with the limiting post (13) for limiting.

3. The battery according to claim 1, characterized in that, The support member (10) and the signal acquisition board (20) both cross the crossbeam (100) along a second direction, which is perpendicular to the first direction; The signal acquisition board (20) is provided with connecting arms (23) on both sides of the crossbeam (100) in the second direction. The connecting arm (23) extends along the second direction; A second perforation (24) is provided between the connecting arm (23) and the buffer area (21) near the crossbeam (100). The support member (10) is provided with a second limiting post (11) that passes through the second through hole (24).

4. The battery according to claim 1, characterized in that, The connecting arm (23) includes a first connecting arm (231); The first connecting arm (231) includes: an L-shaped arm (232) and a bent arm (233); One end of the L-shaped arm (232) is connected to the signal acquisition board (20), and the other end extends sequentially along the first direction and the second direction and then connects to one end of the bent arm (233). The other end of the bent arm (233) extends sequentially along the first direction and the second direction, and the second direction is perpendicular to the first direction. The collecting element (30) is located at the other end of the bent arm (233).

5. The battery according to claim 4, characterized in that, The signal acquisition board (20) is provided with a clearance groove (26) on the side along the first direction. The first connecting arm (231) is disposed in the clearance groove (26), and the acquisition component (30) is spaced apart from the signal acquisition board (20).

6. The battery according to any one of claims 1 to 5, characterized in that, The connecting arm (23) includes a second connecting arm (234); The second connecting arm (234) includes an L-shaped portion (235) and a bent portion (236); One end of the L-shaped part (235) is connected to the signal acquisition board (20), and the other end extends sequentially along the second direction and the first direction before connecting to one end of the bent part (236). The other end of the bent part (236) extends sequentially along the second direction and the first direction multiple times before connecting to the busbar (50). The second direction is perpendicular to the first direction.

7. The battery according to claim 6, characterized in that, The L-shaped portion (235) forms a gap (237) with the signal acquisition board (20) in the first direction; The bent portion (236) has several notches (238) on its side along the first direction.

8. The battery according to claim 1, characterized in that, The buffer area (21) is configured such that one end face of the signal acquisition board (20) forms a recess (211) and the other end face of the signal acquisition board (20) forms a protrusion (212). The protrusion (212) extends into the support groove (12), and the side of the protrusion (212) along its own protrusion direction abuts against the support member (10). The two ends of the protrusion (212) along the second direction form a gap with the groove wall of the support groove (12). The second direction is perpendicular to the first direction. A second buffer is provided between the two ends of the protrusion (212) along the second direction and the signal acquisition board.

9. The battery according to claim 1, characterized in that, include: First buffer (40); The support member (10) is provided with a sinking groove (14); The first buffer (40) is disposed in the sinking trough (14) and is connected to the support (10) and the signal acquisition board (20) on both sides respectively.

10. The battery according to claim 9, characterized in that, The sinking groove (14) is disposed at one end edge of the support member (10) along the second direction, the second direction being perpendicular to the first direction; The first buffer (40) is disposed in the sinking groove (14) and extends out of the sinking groove (14) in the second direction to support the portion of the signal acquisition board (20) that extends out of the support (10) in the second direction; The portion of the signal acquisition board (20) extending out of the support member (10) along the second direction is also connected to a second bend (25). The second bend (25) is used to install the connector (60).

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