CCS assembly

Abstract

The invention discloses a CCS assembly which is used for solving the technical problem that the connection reliability of busbars in an existing battery pack is poor. The CCS assembly comprises a signal acquisition assembly, an insulating bracket and a busbar assembly used for connecting a plurality of cylindrical batteries, the busbar assembly comprises a first conducting strip and a second conducting strip; the first conducting strip comprises a first connecting part and a second connecting part, the first connecting part of the first conducting strip is connected with the cylindrical battery at the input end of the battery module, the second conducting strip comprises a third connecting part and a fourth connecting part, and the third connecting part of the second conducting strip is connected with the cylindrical battery at the output end of the battery module; the second connecting part of the first conducting strip and the fourth connecting part of the second conducting strip are connected with switching copper bars; and the second connecting part and the fourth connecting part are respectively provided with a reinforcing part.

Description

Technical Field

[0001] The present invention relates to the technical field of battery design, and particularly relates to a CCS component. Background Art

[0002] The CCS system (battery module acquisition and integration system) of a battery configuration is assembled from components such as a signal acquisition component and a bus bar component. The bus bar component is connected to the battery module, and the signal acquisition component is connected to the bus bar component to monitor the state of the battery module. Among them, the bus bar component will be connected to a transfer row to output the current of the battery module.

[0003] In the prior art, since the connection between the bus bar component and the transfer row is fixed by means of screws, during the process of tightening the screws, the connection between the bus bar component and the transfer copper row often has a problem of unreliable connection due to insufficient torsional stiffness, resulting in connection failure. The above problems seriously affect the connection reliability of the bus bar component.

[0004] Therefore, finding a technical solution that can solve the above technical problems has become an important topic for those skilled in the art to study. Summary of the Invention

[0005] An embodiment of the present invention discloses a CCS component, which is used to solve the technical problem of poor connection reliability of the bus bar component in an existing battery pack.

[0006] A CCS component provided by the present invention, the CCS component includes a signal acquisition component, an insulating bracket, and a bus bar component. The bus bar component is arranged on the insulating bracket and is used to electrically connect a plurality of cylindrical batteries of a cylindrical battery module. The signal acquisition component is electrically connected to the bus bar component and is used to collect parameters of the cylindrical batteries;

[0007] The bus bar component includes a first conductive sheet and a second conductive sheet arranged side by side at a first end of the insulating bracket along a first direction;

[0008] Among them, the first conductive sheet is the positive extreme, and includes a first body portion, a plurality of first connection portions connected to the first body portion, and a second connection portion connected to the first body portion. The plurality of first connection portions are arranged along a second direction for electrically connecting to the pole columns of a plurality of cylindrical batteries;

[0009] The second conductive sheet is the negative extreme, and includes a second body portion, a plurality of third connection portions connected to the second body portion, and a fourth connection portion connected to the second body portion. The plurality of third connection portions are arranged along the second direction for electrically connecting to the top covers of the plurality of cylindrical batteries;

[0010] A reinforcement portion is provided at the bottom of the second connection portion and / or the fourth connection portion;

[0011] The first direction is the length direction of the insulating support, and the second direction is the width direction of the insulating support.

[0012] Optionally, the third connection portion extends toward the first direction, and an arc-shaped connection portion is provided at the end, wherein the arc-shaped connection portion is used to connect to the top cover of the cylindrical battery and avoid the pole on the top cover.

[0013] Optionally, a first avoidance portion is provided between two adjacent third connection portions, the extension lengths of the two adjacent third connection portions toward the first direction are different, and a longer third connection portion of the two adjacent third connection portions is provided with an avoidance portion to avoid the arc-shaped connection portion of the other third connection portion, and the avoidance portion is connected to the first avoidance portion;

[0014] And / or, projections of two opposite ends of two adjacent arc-shaped connecting portions in the first direction overlap.

[0015] Optionally, the fourth connection portion is recessed in the second main body portion, with one end along the first direction extending to the arc-shaped connection portion and the other end extending to the edge of the second main body portion to form an opening, and the fourth connection portion is connected to the first avoidance portion.

[0016] Optionally, the busbar assembly further includes a connecting conductive sheet, the connecting conductive sheet is arranged at the second end of the insulating support along the first direction, a plurality of positive electrode connecting portions and a plurality of negative electrode connecting portions are arranged on one side of the connecting conductive sheet facing the first end of the insulating support, the plurality of positive electrode connecting portions are sequentially arranged along the second direction and correspond to the second conductive sheet along the first direction, and the plurality of negative electrode connecting portions are sequentially arranged along the second direction and correspond to the first conductive sheet along the first direction;

[0017] A second gap is provided between the positive electrode connecting parts and / or between the negative electrode connecting parts and / or between the positive electrode connecting parts and the negative electrode connecting parts.

[0018] Optionally, a bending portion is provided on a side of the connecting conductive sheet away from the first end of the insulating bracket, and an insulating sleeve is provided on the bending portion, and the insulating sleeve is used to fit the side surface of the cylindrical battery.

[0019] Optionally, a plurality of the first connecting portions are arranged on the circumference of the first main body portion and extend in different directions;

[0020] The first conductive sheet further includes a groove, the second connecting portion is protrudingly arranged at one end of the first body portion away from the first connecting portions, and the groove is at least arranged at the second connecting portion;

[0021] The reinforcement portion is arranged on a side of the groove away from the groove bottom.

[0022] Optionally, the signal acquisition component includes an FPC acquisition board and a connector, the FPC acquisition board passes through the first conductive sheet and the second conductive sheet along the first direction and extends to the outside of the insulating bracket, and the connector is arranged at one end of the FPC acquisition board extending out of the insulating bracket;

[0023] The signal acquisition component also includes a first acquisition terminal, which is sequentially connected to the FPC acquisition board along the first direction. The number of the signal acquisition components is two, and the first acquisition terminals of the two signal acquisition components are arranged facing each other in the second direction, so as to be used for electrically connecting the cylindrical batteries arranged on both sides of the FPC acquisition board;

[0024] The parts of the FPC acquisition boards of the two signal acquisition components extending out of the insulating bracket are bent toward each other to respectively connect the connectors of the two signal acquisition components.

[0025] Optionally, the FPC acquisition board is provided with a through slot, the through slot runs through the FPC acquisition board to divide the FPC acquisition board into an acquisition portion and a main body portion, the acquisition portion is used to connect the first acquisition terminal, a deformation buffer groove is provided between adjacent acquisition portions, and a weak portion is connected between the acquisition portion and the main body portion;

[0026] The acquisition part is arranged on one side edge of the FPC acquisition board along the second direction, the projections of the acquisition parts of the two signal acquisition components in the third direction do not overlap, and they are staggered along the first direction so that the first acquisition terminals of the two signal acquisition components are arranged facing each other and staggered.

[0027] Optionally, an extension portion is protruding from one side edge of the FPC acquisition board along the second direction, and the extension portion is bent and extended, and an end thereof away from the FPC acquisition board is used for connecting a second acquisition terminal;

[0028] The extension parts of the two signal acquisition components are arranged facing each other in the second direction and spaced apart from each other along the first direction, and the spacing distance between the extension parts of two adjacent signal acquisition components along the first direction is greater than or equal to times the spacing distance between the acquisition parts of two adjacent signal acquisition components in the first direction;

[0029] The extension part is provided with a plurality of positioning holes, and the insulating bracket is provided with corresponding connection positioning posts, and the extension part is connected and fixed to the connection positioning posts on the insulating bracket through the positioning holes;

[0030] A positioning hole is also provided on the side of the FPC acquisition board away from the extension portion.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] In the CCS assembly of this embodiment, the first connection portion of the first conductive sheet is connected to the cylindrical battery at the input end of the battery module, the second conductive sheet includes a third connection portion and a fourth connection portion, the third connection portion of the second conductive sheet is connected to the cylindrical battery at the output end of the battery module, the second connection portion of the first conductive sheet and the fourth connection portion of the second conductive sheet are both connected to the transfer copper busbar, and the second connection portion and the fourth connection portion are both provided with a reinforcement portion. In the above design, the reinforcement portion can increase the torsional stiffness of the connection between the first conductive sheet and the transfer copper busbar and the connection between the second conductive sheet and the transfer copper busbar, effectively improve the reliability of the connection between the first conductive sheet, the second conductive sheet and the transfer copper busbar, and effectively improve the reliability of the welding between the busbar assembly and the cylindrical battery, thereby effectively improving the working stability of the battery pack. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of a CCS component provided by the present invention;

[0035] Figure 2 An exploded diagram of the structure of a CCS assembly provided by the present invention;

[0036] Figure 3 A schematic structural diagram of a first conductive sheet of a CCS assembly provided by the present invention;

[0037] Figure 4 A schematic structural diagram of a second conductive sheet of a CCS assembly provided by the present invention;

[0038] Figure 5 A schematic structural diagram of a connecting conductive sheet of a CCS assembly provided by the present invention;

[0039] Figure 6 A schematic diagram of the structure of a signal acquisition component of a CCS component provided by the present invention;

[0040] Figure 7 Schematic diagram of the structure of the FPC acquisition board of the signal acquisition component of a CCS component provided by the present invention;

[0041] Figure 8 Exploded view of the structure of the signal acquisition component of a CCS component provided by the present invention;

[0042] Figure 9 For Figure 8 Partial enlarged view;

[0043] Illustration: Signal acquisition component 1; FPC acquisition board 101; Through slot 1011; Body part 1012; Acquisition part 1013; Weak part 1014; First acquisition terminal 1015; Connection part 1016; Buffer structure 1017; Deformation buffer slot 1018; Extension part 1019; Connector 102; Engaging part 103; First elastic arm 1031; Base 1033; Second elastic arm 1032; Bus bar assembly 2; First conductive sheet 201; First connection part 2011; Second connection part 2012; Reinforcing part 2013; First body part 2014; Groove 2015; Second conductive sheet 202; Third connection part 2021; Fourth connection part 2022; Arc connection part 2023; First clearance part 2024; Avoidance part 2025; Second body part 2026; Connecting conductive sheet 203; Clearance part 2031; Insulating layer 2032; Positive connection part 2033; Negative connection part 2034; Conductive row 204; Insulating bracket 3; First direction X; Second direction Y; Third direction Z. Detailed implementation manners

[0044] The present invention discloses a CCS component, which is used to solve the technical problem of poor connection reliability of the bus bars in the existing battery pack.

[0045] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] Please refer to Figures 1 to 9 , a CCS component provided by an embodiment of the present invention, the CCS component includes a signal acquisition component 1, an insulating bracket 3 and a bus bar assembly 2, the bus bar assembly 2 is arranged on the insulating bracket 3 and is used for electrically connecting a plurality of cylindrical batteries of a cylindrical battery module, and the signal acquisition component 1 is electrically connected to the bus bar assembly 2 and is used for acquiring parameters of the cylindrical batteries;

[0047] The bus bar assembly 2 includes a first conductive sheet 201 and a second conductive sheet 202 arranged side by side at the first end of the insulating bracket 3 along the first direction, where the first direction is Figure 1 the middle direction X;

[0048] Among them, the first conductive sheet 201 is the positive electrode end, including a first body portion 2014, a plurality of first connection portions 2011 connected to the first body portion 2014, and a second connection portion 2012 connected to the first body portion 2014. The plurality of first connection portions 2011 are arranged along the second direction for electrically connecting to the pole columns of a plurality of cylindrical batteries, where the second direction is Figure 1 the middle direction Y;

[0049] The second conductive sheet 202 is the negative electrode end, including a second body portion 2026, a plurality of third connection portions 2021 connected to the second body portion 2026, and a fourth connection portion 2022 connected to the second body portion 2026. The plurality of third connection portions 2021 are arranged along the second direction for electrically connecting to the top covers of a plurality of the cylindrical batteries;

[0050] A reinforcing portion 2013 is provided at the bottom of the second connection portion 2012 and / or the fourth connection portion 2022. Among them, it is preferred that the reinforcing portions 201 are provided at the bottoms of both the second connection portion 2012 and the fourth connection portion 2022;

[0051] The first direction is the length direction of the insulating bracket 3, and the second direction is the width direction of the insulating bracket 3.

[0052] It should be noted that the signal acquisition component 1 and the bus bar assembly 2 in this embodiment can be specifically connected by conductive metal sheets such as nickel sheets, and the bus bar assembly 2 in this embodiment can be specifically connected to the insulating bracket 3 by thermal riveting posts.

[0053] In the CCS component of this embodiment, the first connection portion 2011 of the first conductive sheet 201 is connected to the pole of the cylindrical battery at the input end of the battery module. The second conductive sheet 202 includes a third connection portion 2021 and a fourth connection portion 2022. The third connection portion 2021 of the second conductive sheet 202 is connected to the housing of the cylindrical battery at the output end of the battery module. The second connection portion 2012 of the first conductive sheet 201 and the fourth connection portion 2022 of the second conductive sheet 202 are both connected with a transition copper row, and a strengthening portion 2013 is provided on both the second connection portion 2012 and the fourth connection portion 2022. In the above design, the strengthening portion 2013 can increase the torsional stiffness at the connection between the first conductive sheet 201 and the transition copper row and at the connection between the second conductive sheet 202 and the transition copper row, effectively improving the reliability of the connection between the first conductive sheet 201, the second conductive sheet 202 and the transition copper row, effectively improving the reliability of the welding of the busbar assembly and the cylindrical battery, avoiding the connection failure of the first conductive sheet 201 and the second conductive sheet 202 caused by reasons such as vibration and expansion, and thus effectively improving the working stability of the battery pack.

[0054] Further, the third connection portion 2021 in this embodiment extends in the first direction, and an arc-shaped connection portion 2023 is provided at the end. The arc-shaped connection portion 2023 is used to connect the top cover of the cylindrical battery and avoid the pole on the top cover.

[0055] It should be noted that through the above design, the arc-shaped connection portion 2023 formed by the third connection portion 2021 extending outward from the second body portion 2026 can effectively increase the welding area between the second conductive sheet 202 and the cylindrical battery, help improve the weldability, improve the welding work efficiency. At the same time, in the case of abnormal welds, the larger welding area can provide the possibility of repair welding, reducing the manufacturing cost of the battery pack. At the same time, it can also reduce the contact resistance, reduce the energy damage during charging and discharging, improve the charging and discharging efficiency, and improve the current-carrying capacity, reduce the voltage drop, and improve the power output performance of the battery.

[0056] Further, a first clearance portion 2024 is provided between two adjacent third connection portions 2021 in this embodiment. The extending lengths of two adjacent third connection portions 2021 in the first direction are different, and a avoiding portion 2025 is provided on the third connection portion 2021 with a longer length among two adjacent third connection portions 2021 to avoid the arc-shaped connection portion 2023 of the other third connection portion 2021, and the avoiding portion 2025 is communicated with the first clearance portion 2024;

[0057] In the above design, the third connecting portions 2021 with different extension lengths can cooperate with cylindrical batteries at different positions and maximize the contact area between the third connecting portions 2021 and the cylindrical batteries. At the same time, the first clearance portion 2024 can ensure the electrical clearance between adjacent third connecting portions 2021. In addition, the avoidance portion 2025 can not only maximize the area of the third connecting portion 2021, but also further ensure the electrical clearance between adjacent third connecting portions 2021. Connecting the first clearance portion 2024 and the avoidance portion 2025 can facilitate production and processing. Through the above design, space can be effectively utilized, the area of multiple third connecting portions 2021 can be maximized to increase the connection area between the third connecting portions 2021 and the cylindrical batteries, and sufficient electrical clearance between adjacent third connecting portions 2021 can be ensured, avoiding mutual coupling of magnetic fields due to too close distance between adjacent third connecting portions 2021, resulting in energy loss and increased heat, and also avoiding additional resistance paths due to contact between the third connecting portions 2021, increasing the total resistance and voltage drop.

[0058] In addition, in another specific embodiment, the projections of the opposite ends of two adjacent arc-shaped connecting portions 2023 in the first direction overlap.

[0059] It should be noted that through the different extension lengths of the third connecting portions 2021 and the different designs of the arc-shaped connecting portions 2023 on different third connecting portions 2021, the adjacent two arc-shaped connecting portions 2023 of adjacent third connecting portions 2021 are misaligned, which can make the arrangement of the arc-shaped connecting portions 2023 in the second conductive sheet 202 more compact, facilitating the improvement of the welding area with the top cover of the cylindrical battery.

[0060] Furthermore, in this embodiment, the fourth connecting portion 2022 is recessed in the second body portion 2026, extending from one end in the first direction to the arc-shaped connecting portion 2023 and from the other end to the edge of the second body portion 2026 to form an opening, and the fourth connecting portion 2022 is connected to the first clearance portion 2024.

[0061] It should be noted that through the above design, the area of the fourth connecting portion 2022 in the first direction is enlarged, and when the second conductive sheet 202 is connected to the adapter copper bar, the connecting end of the adapter copper bar can be attached to the top surface of the fourth connecting portion 2022 through this opening, facilitating the connection between the second conductive sheet 202 and the adapter copper bar, increasing the connection area between the second conductive sheet 202 and the fourth connecting portion 2022, and also realizing the pre-positioning of the second conductive sheet 202 through the recessed fourth connecting portion 2022, effectively improving the operation convenience of the operator.

[0062] Further, the bus bar assembly 2 in this embodiment further includes an adapter conductive sheet 203. The adapter conductive sheet 203 is disposed at the second end of the insulating bracket 3 along the first direction. On one side of the adapter conductive sheet 203 facing the first end of the insulating bracket 3, a plurality of positive connection parts and a plurality of negative connection parts are provided. The plurality of positive connection parts are arranged in sequence along the second direction and correspond to the second conductive sheet 202 along the first direction. The plurality of negative connection parts are arranged in sequence along the second direction and correspond to the first conductive sheet 201 along the first direction;

[0063] Second clearance parts 2031 are provided between the positive connection parts and / or between the negative connection parts and / or between the positive connection parts and the negative connection parts.

[0064] It should be noted that in the above design, due to manufacturing process reasons, it is impossible to ensure that all welding surfaces are on the same plane, and poor results such as virtual soldering are likely to occur during the welding process. Therefore, by providing a first clearance part 2024 on the second conductive sheet 202 and a second clearance part 2031 on the adapter conductive sheet 203, the stress after welding of the entire second conductive sheet 202 and the adapter conductive sheet 203 can be reduced, and poor phenomena such as virtual soldering can be avoided.

[0065] Further, a bending part is provided on one side of the adapter conductive sheet 203 in this embodiment facing away from the first end of the insulating bracket 3. An insulating sleeve 2032 is sleeved on the bending part. The insulating sleeve 2032 is used to fit the side surface of the cylindrical battery.

[0066] It should be noted that the design of the above bending part can facilitate the positioning and fixing of the adapter conductive sheet 203, avoid occupying the space in the first direction. At the same time, through the design of the above insulating sleeve 2032, it can be avoided that the adapter conductive sheet contacts the side surface of the outer shell of the cylindrical battery, and it can also be avoided that the adapter conductive sheet contacts the battery pack box outside the cylindrical battery, thereby preventing situations such as short circuit from occurring, and can better improve the safety of the entire battery pack.

[0067] Further, the first connection part 2011 in this embodiment is disposed on the circumference of the first body part 2014 and extends in different directions to facilitate connection with the pole columns of cylindrical batteries at different positions, improving the connection reliability;

[0068] Reference Figure 2 and Figure 3 As shown in and, the first conductive sheet 201 further includes a groove 2015. The second connection part 2012 protrudes from one end of the first body part 2014 facing away from the plurality of first connection parts 2011. The groove 2015 is at least provided on the second connection part 2012;

[0069] The reinforcing part 2013 is arranged on the side of the groove 2015 away from the bottom of the groove 2015.

[0070] It should be noted that when the first conductive sheet 201 is connected to the adapter copper bar, the connection end of the adapter copper bar is first placed in the groove 2015. The groove 2015 can well limit the connection end of the adapter copper bar to ensure the accuracy of subsequent fixed connection. And the design of the groove 2015 can also increase the contact area between the adapter copper bar and the first conductive sheet 201, making the connection more stable.

[0071] Furthermore, the busbar assembly 2 in this embodiment further includes a conductive bar 204 for electrically connecting a plurality of cylindrical batteries;

[0072] The conductive bar 204 includes a plurality of conductive parts and a conductive connection part. The plurality of conductive parts arranged in the second direction are connected by the conductive connection part. The cylindrical batteries arranged adjacent to each other in the second direction are connected in parallel through the conductive parts, and the cylindrical batteries arranged adjacent to each other in the first direction are connected in series through the conductive parts to form a cylindrical battery module;

[0073] The plurality of battery modules are arranged at intervals in the second direction, and are connected by the connecting conductive sheet 203 between two adjacent battery modules, thereby improving the overall structural tightness.

[0074] Furthermore, the signal acquisition component 1 in this embodiment includes an FPC acquisition board 101 and a connector 102. The FPC acquisition board 101 passes through the first conductive sheet 201 and the second conductive sheet 202 in the first direction and extends outside the insulating bracket 3. The connector 102 is arranged at one end of the FPC acquisition board 101 extending out of the insulating bracket 3; thus, in a limited space, the first conductive sheet 201, the second conductive sheet 202 and the FPC acquisition board can be reasonably arranged to avoid overlap between the first conductive sheet 201, the second conductive sheet 202 and the FPC acquisition board caused by mutual interference. One end of the connector extending out of the insulating bracket 3 can facilitate the connection between the connector and other plug-in parts, avoid occupying the space in the height direction of the CCS component, and improve the space utilization rate.

[0075] The signal acquisition component 1 further includes a first acquisition terminal 1015. The first acquisition terminal 1015 is sequentially connected to the FPC acquisition board 101 in the first direction. The number of the signal acquisition components 1 is two, and the first acquisition terminals 1015 of the two signal acquisition components 1 are arranged facing each other in the second direction for electrically connecting the cylindrical batteries arranged on both sides of the FPC acquisition board 101; thus, in the limited space of two adjacent battery modules, a plurality of signal acquisition components 1 can be arranged, and the installation convenience can also be improved.

[0076] The portions of the FPC acquisition boards 101 of the two signal acquisition components 1 extending out of the insulating bracket 3 are bent towards each other to respectively connect the connectors 102 of the two signal acquisition components 1, which can provide a buffer margin for the installation and fixation of the connectors 102 and avoid damaging the FPC acquisition boards.

[0077] It should be noted that, in this embodiment, a clamping portion 103 is provided on the connector 102.

[0078] The clamping portion 103 includes a base 1303, a first elastic clamping arm 1301, and a second elastic clamping arm 1302;

[0079] The first elastic clamping arm 1031 and the second elastic clamping arm 1032 are both connected to the base 1033 and are symmetrically arranged about the central axis of the base 1033. The first elastic clamping arm 1031 and the second elastic clamping arm 1032 are respectively used for clamping and fixing.

[0080] Through the above design, the connector 102 can be clamped on the structure inside the battery pack (such as a cooling water pipe) through the clamping portion 103. While effectively utilizing the space to fix the connector 102, it can also improve the integration of the entire battery pack, and improve the energy density and grouping rate of the battery pack.

[0081] Further, a through groove 1011 is provided on the FPC acquisition board 101 in this embodiment. The through groove 1011 runs through the FPC acquisition board 101 to divide the FPC acquisition board 101 into an acquisition portion 1013 and a body portion 1012. The acquisition portion 1013 is used to connect the first acquisition terminal 1015. A deformation buffer groove 1018 is provided between adjacent acquisition portions 1013. A weak portion 1014 is connected between the acquisition portion 1013 and the body portion 1012;

[0082] It should be noted that the design of the above deformation buffer groove 1018 enables the FPC acquisition board 101 to have a certain deformation ability, which can effectively reduce the situation of the FPC acquisition board 101 being damaged by force. And the weak portion 1014 can meet the manufacturing tolerance and the influence brought by the expansion of the cylindrical battery. At the same time, it is more convenient for the FPC acquisition board 101 to be positioned and welded with the bus bar assembly 202 through nickel sheets, greatly reducing the manufacturing cost of the CCS component.

[0083] In addition, the acquisition portion 1013 in this embodiment is arranged on one side edge of the FPC acquisition board 101 along the second direction. The projections of the acquisition portions 1013 of the two signal acquisition components 1 in the third direction do not overlap, and are arranged in a staggered manner along the first direction so that the first acquisition terminals 1015 of the two signal acquisition components 1 are arranged facing each other and are staggered. Among them, the third direction is the height direction of the insulating bracket 3, that isFigure 1 in the Z direction.

[0084] It should be noted that through the above design, the width of the acquisition part 1013 can be prevented from being too wide, which affects the strength of the FPC acquisition board 101, and the acquisition part 1013 on one side can be prevented from interfering with the acquisition part 1013 on the other side due to buffer deformation. In this embodiment, it is preferably that the main body parts 1012 of the two FPC acquisition boards 101 overlap as much as possible, which can prevent warping while improving the strength of the two FPC acquisition boards and preventing damage caused by buffer deformation.

[0085] Further, on one side edge of the FPC acquisition board 101 in this embodiment along the second direction, an extension part 1019 is convexly provided, and the extension part 1019 is bent and extended, and one end away from the FPC acquisition board 101 is used to connect the second acquisition terminal;

[0086] The extension parts 1019 of the two signal acquisition components 1 are arranged facing each other in the second direction and are spaced from each other along the first direction. The spacing distance between the extension parts 1019 of two adjacent signal acquisition components 1 along the first direction is greater than or equal to 4 times the spacing distance between the acquisition parts 1013 of two adjacent signal acquisition components 1 along the first direction, so as to further prevent the FPC acquisition board 101 from being deformed and warped due to the deformation of the extension part 1019; the design of the extension part 1019 can detect the information of cylindrical batteries at different positions to improve the reliability of the information. Since the buffer deformation amount received by the extension part 1019 is larger, the spacing distance between adjacent extension parts 1019 needs to be set large enough along the first direction to avoid the fracture of the extension part 1019. Here, the spacing distance between adjacent extension parts 1019 is greater than or equal to 4 times the spacing distance between adjacent acquisition parts 1013 to ensure that enough spacing is set.

[0087] The extension part 1019 is provided with a plurality of positioning holes, and corresponding connection positioning columns are arranged on the insulating bracket 3. The extension part 1019 is connected and fixed to the connection positioning columns on the insulating bracket 3 through the positioning holes to improve the reliability of the extension part 1019;

[0088] On the side of the FPC acquisition board 101 away from the extension part 1019, positioning holes are also provided, and positioning columns are arranged on the insulating bracket 3 corresponding to the positioning holes to fix the FPC acquisition board 101 to the insulating bracket 3.

[0089] It should be noted that in the above design, through the cooperative design of the positioning column and the positioning hole, the extension part 1019 can be accurately connected to the insulating bracket, and the assembly convenience can be effectively improved.

[0090] Further, it should be noted that in this embodiment, the first acquisition terminal 1015 is mainly used to acquire the battery voltage, and the second acquisition terminal is mainly used to acquire the battery temperature.

[0091] In addition, other connection positioning posts are provided on the insulating bracket 3 in this embodiment. The first conductive sheet 201, the second conductive sheet 202, the connecting conductive sheet 203, and the bus bar 204 are all provided with a plurality of positioning holes. The first conductive sheet 201, the second conductive sheet 202, the connecting conductive sheet 203, and the bus bar 204 are connected and fixed to the connection positioning posts on the insulating bracket 3 through the positioning holes.

[0092] It should be noted that through the above design, the connection stability between the first conductive sheet 201, the second conductive sheet 202, the connecting conductive sheet 203, and the bus bar 204 and the insulating bracket 3 can be effectively improved, enabling them to be accurately connected to the insulating bracket 3 and effectively enhancing the assembly convenience.

[0093] The above has introduced in detail a CCS component provided by the present invention. For those of ordinary skill in the art, according to the idea of the embodiments of the present invention, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. A CCS component, characterized in that, The CCS component includes a signal acquisition component (1), an insulating bracket (3), and a busbar component (2). The busbar component (2) is disposed on the insulating bracket (3) and is used for electrically connecting a plurality of cylindrical batteries of a cylindrical battery module. The signal acquisition component (1) is electrically connected to the busbar component (2) and is used for acquiring parameters of the cylindrical batteries; The busbar component (2) includes a first conductive sheet (201) and a second conductive sheet (202) arranged side by side at a first end of the insulating bracket (3) along a first direction; Wherein, the first conductive sheet (201) is the positive extreme end and includes a first body portion (2014), a plurality of first connection portions (2011) connected to the first body portion (2014), and a second connection portion (2012) connected to the first body portion (2014). The plurality of first connection portions (2011) are arranged along a second direction for electrically connecting to the pole columns of a plurality of cylindrical batteries; The second conductive sheet (202) is the negative extreme end and includes a second body portion (2026), a plurality of third connection portions (2021) connected to the second body portion (2026), and a fourth connection portion (2022) connected to the second body portion (2026). The plurality of third connection portions (2021) are arranged along the second direction for electrically connecting to the top covers of a plurality of the cylindrical batteries; A reinforcing portion (2013) is provided at the bottom of the second connection portion (2012) and / or the fourth connection portion (2022); The first direction is the length direction of the insulating bracket (3), and the second direction is the width direction of the insulating bracket (3).

2. The CCS component according to claim 1, characterized in that, The third connection portion (2021) extends towards the first direction and an arc-shaped connection portion (2023) is provided at the end. The arc-shaped connection portion (2023) is used for connecting the top cover of the cylindrical battery and avoiding the pole column on the top cover.

3. The CCS component according to claim 2, wherein, A first clearance portion (2024) is provided between two adjacent third connection portions (2021). The extending lengths of two adjacent third connection portions (2021) towards the first direction are different, and a avoiding portion (2025) is provided on the third connection portion (2021) with a longer length among two adjacent third connection portions (2021) to avoid the arc-shaped connection portion (2023) of the other third connection portion (2021). The avoiding portion (2025) is communicated with the first clearance portion (2024); And / or, the projections of two opposite ends of two adjacent arc-shaped connection portions (2023) overlap in the first direction.

4. The CCS component according to claim 3, wherein The fourth connection portion (2022) is recessed in the second body portion (2026), extends to the arc-shaped connection portion (2023) at one end along the first direction, and extends to the edge of the second body portion (2026) at the other end to form an opening. The fourth connection portion (2022) is connected to the first clearance portion (2024).

5. The CCS component for a battery pack according to claim 1, wherein, The busbar assembly (2) further comprises a connecting conductive sheet (203), the connecting conductive sheet (203) being arranged at the second end of the insulating support (3) along the first direction, a plurality of positive electrode connecting portions and a plurality of negative electrode connecting portions being arranged on one side of the connecting conductive sheet (203) facing the first end of the insulating support (3), the plurality of positive electrode connecting portions being arranged in sequence along the second direction and corresponding to the second conductive sheet (202) along the first direction, and the plurality of negative electrode connecting portions being arranged in sequence along the second direction and corresponding to the first conductive sheet (201) along the first direction; A second gap avoidance portion (2031) is provided between the positive electrode connecting portions and / or between the negative electrode connecting portions and / or between the positive electrode connecting portions and the negative electrode connecting portions.

6. The CCS assembly for a battery pack according to claim 5, characterized in that: A bending portion is provided on one side of the connecting conductive sheet (203) away from the first end of the insulating bracket (3), and the bending portion is sleeved with an insulating sleeve (2032), and the insulating sleeve (2032) is used to fit the side surface of the cylindrical battery.

7. The CCS component according to claim 1, wherein A plurality of the first connecting portions (2011) are arranged in the circumference of the first main body portion (2014) and extend in different directions; The first conductive sheet (201) further comprises a groove (2015), the second connection portion (2012) is protrudingly arranged at an end of the first body portion (2014) away from the plurality of first connection portions (2011), and the groove (2015) is at least arranged at the second connection portion (2012); The reinforcement portion (2013) is arranged on a side of the groove (2015) that is away from the bottom of the groove (2015).

8. The CCS component according to claim 1, characterized in that, The signal acquisition component (1) comprises an FPC acquisition board (101) and a connector (102); the FPC acquisition board passes through the first conductive sheet (201) and the second conductive sheet (202) along the first direction and extends to the outside of the insulating bracket (3); the connector (102) is arranged at one end of the FPC acquisition board (101) extending out of the insulating bracket (3); The signal acquisition component (1) further comprises a first acquisition terminal (1015), the first acquisition terminal (1015) being sequentially connected to the FPC acquisition board (101) along the first direction, the number of the signal acquisition components (1) being two, and the first acquisition terminals (1015) of the two signal acquisition components (1) being arranged facing each other in the second direction, so as to be used for electrically connecting cylindrical batteries arranged on both sides of the FPC acquisition board (101); Portions of the FPC acquisition boards (101) of the two signal acquisition components (1) extending out of the insulating bracket (3) are bent towards each other so as to respectively connect to the connectors (102) of the two signal acquisition components (1).

9. The CCS assembly according to claim 8, characterized in that: The FPC acquisition board (101) is provided with a through slot (1011), the through slot (1011) penetrating the FPC acquisition board (101) so as to divide the FPC acquisition board (101) into an acquisition portion (1013) and a main body portion (1012), the acquisition portion (1013) being used to connect the first acquisition terminal (1015), a deformation buffer slot (1018) being provided between adjacent acquisition portions (1013), and a weak portion (1014) being connected between the acquisition portion (1013) and the main body portion (1012); The acquisition portion (1013) is arranged at a side edge of the FPC acquisition board (101) along the second direction; the projections of the acquisition portions (1013) of the two signal acquisition components (1) in the third direction do not overlap; and the acquisition portions (1013) are arranged in a staggered manner along the first direction so that the first acquisition terminals (1015) of the two signal acquisition components (1) are arranged facing each other and in a staggered arrangement.

10. The CCS component according to claim 9, characterized in that, An extension portion (1019) is protruding from one side edge of the FPC acquisition board (101) along the second direction, and the extension portion (1019) is bent and extended, and an end thereof away from the FPC acquisition board (101) is used for connecting a second acquisition terminal; The extension parts (1019) of the two signal acquisition components (1) are arranged facing each other in the second direction and spaced apart from each other along the first direction, and the spacing distance between the extension parts (1019) of two adjacent signal acquisition components (1) along the first direction is greater than or equal to 4 times the spacing distance between the acquisition parts (1013) of two adjacent signal acquisition components (1) along the first direction; The extension portion (1019) is provided with a plurality of positioning holes, and the insulating bracket (3) is provided with corresponding connection positioning columns, and the extension portion (1019) is connected and fixed to the connection positioning columns on the insulating bracket (3) through the positioning holes; A positioning hole is also provided on the side of the FPC collection plate (101) facing away from the extension portion (1019).

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