CCS assembly and battery pack

Abstract

The utility model discloses a CCS assembly and a battery pack, which are used for solving the technical problem that a plurality of signal acquisition assemblies in the existing CCS assembly occupy more space of the battery pack. The CCS assembly comprises a signal acquisition assembly, the signal acquisition assembly comprises an FPC acquisition board and a connector, and the connector is arranged at a first end portion of the FPC acquisition board; the number of the signal acquisition assemblies is two, and the FPC acquisition boards of the two signal acquisition assemblies are overlapped in the third direction, so that the structure is more compact, and the space occupied by the signal acquisition assemblies can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery pack design technology, and in particular to a CCS component and battery pack. Background Technology

[0002] Battery packs are typically equipped with a CCS (Battery Module Acquisition Integration System), which is assembled from signal acquisition components, busbars, etc. The busbars are welded to the battery modules, and the signal acquisition components are connected to the busbars to monitor the battery status.

[0003] To better detect battery status, existing signal acquisition components typically consist of multiple units, installed side-by-side within the battery pack. However, while this design enables better battery status detection, the multiple signal acquisition components inevitably occupy more space within the battery pack, limiting its capacity to accommodate more batteries and severely impacting its performance.

[0004] Therefore, finding a technical solution that can solve the above-mentioned technical problems has become an important research topic for those skilled in the art. Utility Model Content

[0005] This utility model discloses a CCS component and battery pack, which solves the technical problem that multiple signal acquisition components in existing CCS components occupy too much space in the battery pack.

[0006] This utility model provides a CCS component, which includes a signal acquisition component, the signal acquisition component includes an FPC acquisition board and a connector, and the connector is disposed at the first end of the FPC acquisition board;

[0007] The number of signal acquisition components is two, and the FPC acquisition boards of the two signal acquisition components are stacked in a third direction. The connectors of the two signal acquisition components are spaced apart along a second direction, which is the width direction of the CCS component and the third direction is the height direction of the CCS component.

[0008] Optionally, the connector's insertion interface is located away from the FPC acquisition board along a first direction, where the first direction is the length direction of the CCS component.

[0009] Optionally, the bottom of the connector is provided with a locking part, which is used to lock and fix the connector.

[0010] The engaging portion includes a base, a first elastic locking arm, and a second elastic locking arm;

[0011] The first elastic locking arm and the second elastic locking arm are both connected to the base and are symmetrically arranged about the central axis of the base. The first elastic locking arm and the second elastic locking arm are used for locking and fixing.

[0012] Optionally, the FPC acquisition board is provided with a connection part for connecting to a connector, and a buffer structure is provided between the connection part and the FPC acquisition board.

[0013] Optionally, the FPC acquisition board further includes a board body, and the board body is provided with a through groove. The through groove penetrates the FPC acquisition board to divide the board body into an acquisition part and a main body part. The acquisition part is provided with a first acquisition terminal. The first acquisition terminal is sequentially connected to the FPC acquisition board along a first direction. The first acquisition terminals of the two signal acquisition components are arranged facing each other in a second direction for electrically connecting to the cylindrical batteries disposed on both sides of the FPC acquisition board.

[0014] A deformation buffer groove is provided between two adjacent acquisition units; a weak part is provided between the acquisition unit and the main body unit.

[0015] Optionally, the acquisition unit is disposed on one side edge of the FPC acquisition board along the second direction, and the projections of the acquisition units of the two signal acquisition components in the third direction do not overlap, and 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.

[0016] Optionally, the FPC acquisition board has an extension protruding from one side edge along the second direction. The extension is bent and extended, and a second acquisition terminal is connected to one end of the extension that is away from the FPC acquisition board.

[0017] The extensions 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. The distance between the extensions of two adjacent signal acquisition components along the first direction is greater than a multiple of the distance between the acquisition portions of two adjacent signal acquisition components along the first direction.

[0018] Optionally, the buffer structure includes a connecting portion for connecting the connecting part and the FPC acquisition board. The connecting portion has a concave-convex structure, and the connecting portion is bent and connected to the FPC acquisition board and extends along the third direction.

[0019] Optionally, the buffer structure further includes a folding portion connecting the connecting portion and the FPC acquisition board. The folding portion folds together along the third direction, with one end along the second direction connected to the connecting portion and one end along the first direction connected to the FPC acquisition board. The first direction is the length direction of the CCS component.

[0020] The present invention provides a battery pack, including a housing, a battery module, and the aforementioned CCS component.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] In the CCS component of this embodiment, the FPC acquisition boards of the two signal acquisition components are arranged in an overlapping manner, which makes the structure more compact and can effectively reduce the space occupied by the signal acquisition components, thereby allowing the battery pack to accommodate more batteries and thus effectively improving the performance of the battery pack. Attached Figure Description

[0023] 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, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of a CCS component provided by this utility model;

[0025] Figure 2 An exploded view of the structure of a CCS component provided by this utility model;

[0026] Figure 3 An enlarged view of the engagement part of a CCS component provided by this utility model;

[0027] Figure 4 An enlarged view of the structure of the FPC acquisition board of a CCS component provided by this utility model.

[0028] Illustration:

[0029] Signal acquisition component 1; FPC acquisition board 101; first signal acquisition component 1A; second signal acquisition component 1B; connector 102; engaging part 103; base 1031; first elastic locking arm 1032; second elastic locking arm 1033; connecting part 104; connecting part 105; through slot 106; body part 107; acquisition part 108; weak part 109; first acquisition terminal 110; second acquisition terminal 111; extension part 112; deformation buffer groove 113; first direction X; second direction Y; third direction Z. Detailed Implementation

[0030] This utility model discloses a CCS component and battery pack, which solves the technical problem that multiple signal acquisition components in existing CCS components occupy too much space in the battery pack.

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figures 1 to 4 The present invention provides a CCS component, the CCS component including a signal acquisition component 1, the signal acquisition component 1 including an FPC acquisition board 101 and a connector 102, the connector 102 being disposed at a first end of the FPC acquisition board 101;

[0033] The number of signal acquisition components 1 is two, and the FPC acquisition boards 101 of the two signal acquisition components 1 are stacked in a third direction. The connectors 102 of the two signal acquisition components 1 are spaced apart along a second direction, which is the width direction of the CCS component, i.e., the Y direction, and the third direction is the height direction of the CCS component, i.e., the Z direction.

[0034] In the CCS component of this embodiment, the FPC acquisition boards 101 of the two signal acquisition components 1 are arranged in an overlapping manner, which makes the structure more compact and can effectively reduce the electrical space occupied by the signal acquisition components 1. Since the CCS component is set on the battery module, the battery mode is provided with the terminal post at the end corresponding to the CCS component. In order to increase the area of ​​the terminal post, the space for setting the FPC acquisition board 101 is very limited. Through this application, multiple FPC acquisition boards can be arranged in the limited space on the battery module, increasing the terminal post area, improving the current carrying capacity, meeting the high power requirements, and saving space in the height direction. It can also enable the battery pack to accommodate more batteries, thereby effectively improving the performance of the battery pack.

[0035] Furthermore, in this embodiment, the insertion interface of the connector 102 is away from the FPC acquisition board 101 along a first direction, which is the length direction of the CCS component, i.e., the X direction.

[0036] It should be noted that the above design facilitates the insertion of the connector 102 into other connectors, avoiding the occupation of space in the height direction of the CCS component.

[0037] Furthermore, in this embodiment, the connector 102 is provided with a locking part 103 at its bottom, which is used to lock and fix the connector 102.

[0038] It should be noted that, in one embodiment, the connector 102 can be engaged with the cooling water pipe inside the battery pack via the engaging portion 103, effectively fixing the connector 102 while also improving the integration of the entire battery pack, thus increasing both the energy density and assembly rate of the battery pack. In other embodiments, the connector 102 can also be fixed to the crossbeam inside the battery pack via the engaging portion 103, as long as the connector 102 can be fixed through the inherent structure inside the battery pack.

[0039] Specifically, the engaging part 103 in this embodiment includes a base 1031, a first elastic engaging arm 1032 and a second elastic engaging arm 1033;

[0040] The first elastic locking arm 1032 and the second elastic locking arm 1033 are both connected to the base 1031 and are symmetrically arranged about the central axis of the base 1031. The first elastic locking arm 1032 and the second elastic locking arm 1033 are respectively used for locking and fixing.

[0041] It should be noted that, through the above design, the first elastic clamping arm 1031 and the second elastic clamping arm 1032 cooperate with each other to clamp and fix the cooling water pipe, thereby fixing the connector 102. The first elastic clamping arm 1032 and the second elastic clamping arm 1033 are arc-shaped structures to clamp and fix with the cooling water pipe. The first elastic clamping arm 1032 and the second elastic clamping arm 1033 can also be bent structures to clamp and fix with other structures, as long as they can be fixed to the inherent structure inside the battery pack through the first elastic clamping arm 1032 and the second elastic clamping arm 1033. The inherent structure inside the battery pack can include structures such as beams and frames, or structures such as brackets for mounting and fixing components.

[0042] Furthermore, in this embodiment, the FPC acquisition board 101 is provided with a connection part 104 for connecting with the connector 102, and a buffer structure is provided between the connection part 104 and the FPC acquisition board 101.

[0043] It should be noted that the buffer structure designed above helps the connector 102 absorb manufacturing tolerances during installation, reducing manufacturing costs while improving manufacturing efficiency.

[0044] Furthermore, the buffer structure in this embodiment includes a connecting portion 105 for connecting the connecting portion 104 and the FPC acquisition board 101. The connecting portion 105 has a concave-convex structure, and the connecting portion 105 is bent and connected to the FPC acquisition board 101 and extends along the third direction.

[0045] It should be noted that the aforementioned concave-convex structure is similar to a wave pattern, which is mainly used to help the connector 102 absorb manufacturing tolerances during installation. At the same time, the wave pattern design can increase the buffer margin between the main body of the acquisition board and the connecting part 104 in the third direction, so as to prevent breakage between the main body of the board and the connecting part 104 under conditions such as vibration.

[0046] Furthermore, the aforementioned buffer structure also includes a folding portion connecting the connecting portion 105 and the FPC acquisition board 101. The folding portion folds together along the third direction, with one end along the second direction connected to the connecting portion 105 and one end along the first direction connected to the FPC acquisition board 101. The first direction is the length direction of the CCS component.

[0047] It should be noted that the design of this folding part not only facilitates extending the distance between the connector 102 and the FPC acquisition board 101, ensuring that the connectors 102 of the two signal acquisition components 1 are spaced apart along the second direction to avoid interference between them, but also improves the strength of the part connected to the FPC acquisition board 101 and the connecting part 105, preventing the part connected to the FPC acquisition board 101 and the connecting part 105 from warping and affecting the reliability of installation.

[0048] Furthermore, the FPC acquisition board 101 in this embodiment also includes a board body, on which a through groove 106 is provided. The through groove 106 penetrates the FPC acquisition board 101 to divide the board body into an acquisition section 108 and a main body section 107. The acquisition section 108 is provided with a first acquisition terminal 110. The first acquisition terminal 110 is sequentially connected to the FPC acquisition board 101 along a first direction. The first acquisition terminals 110 of the two signal acquisition components 1 are arranged facing each other in a second direction for electrical connection to the batteries disposed on both sides of the FPC acquisition board 101. Thus, the FPC acquisition board and its first acquisition terminals 110 can be arranged in the limited space above the batteries.

[0049] A deformation buffer groove 113 is provided between two adjacent acquisition units 108; a weak part 109 is connected between the acquisition unit 108 and the main body 107.

[0050] It should be noted that the design of the aforementioned deformation buffer groove 113 enables the FPC acquisition board 101 to have a certain deformation capability, which can effectively reduce the damage of the FPC acquisition board 101 under stress. Furthermore, the weak part 109 can meet the manufacturing tolerance and the impact of battery expansion. At the same time, it is more convenient for the FPC acquisition board 101 to be positioned and welded to the bus assembly through nickel sheets, which greatly reduces the manufacturing cost of CCS modules.

[0051] Furthermore, in this embodiment, the acquisition unit 108 is disposed on one side edge of the FPC acquisition board 101 along the second direction. The projections of the acquisition units 108 of the two signal acquisition components 1 in the third direction do not overlap, and they are staggered along the first direction so that the first acquisition terminals 110 of the two signal acquisition components 1 are arranged facing each other and staggered.

[0052] It should be noted that, through the above design, the acquisition section 108 can be avoided from being too wide, which would affect the strength of the FPC acquisition board 101. The acquisition section 108 on one side can be avoided from interfering with the acquisition section 108 on the other side due to buffer deformation. In this embodiment, it is preferable that the two FPC acquisition boards 101 body sections 107 overlap as much as possible to prevent warping and improve the strength of the two FPC acquisition boards 101.

[0053] Furthermore, in this embodiment, the FPC acquisition board 101 has an extension 112 protruding from one side edge along the second direction. The extension 112 is bent and extended, and the end away from the FPC acquisition board 101 is connected to a second acquisition terminal 111.

[0054] The second acquisition terminal 111 is mainly used to acquire battery temperature, and the first acquisition terminal is mainly used to acquire battery voltage. By setting the extension 112, interference between the first acquisition terminal 110 and the second acquisition terminal 111 can be avoided, thereby improving detection accuracy and space utilization.

[0055] The extensions 112 of the two signal acquisition components 1 are arranged facing each other in the second direction and spaced apart from each other in the first direction. This avoids interference between the extensions 112 on one side and the extensions 112 on the other side due to the buffer deformation of the extensions 112 on one side. At the same time, the spacing between the extensions 112 of two adjacent signal acquisition components 1 in the first direction is greater than the spacing between the acquisition parts 108 of two adjacent signal acquisition components 1 in the first direction. This makes the extensions 112 have a larger buffer margin than the acquisition parts 108, thus avoiding deformation and breakage of the extensions 112.

[0056] It should be noted that the above design can further prevent the extension 112 from deforming and warping the FPC acquisition board 101.

[0057] Please see Figures 1 to 4 This utility model embodiment also provides a battery pack, including a housing, a battery module, and the aforementioned CCS component.

[0058] The box also includes a cooling plate, which is connected to a cooling water pipe.

[0059] The cooling plate is thermally connected to the battery module, the FPC acquisition board 101 in the signal acquisition component 1 is electrically connected to the battery module, the cooling plate is connected to a cooling water pipe for conveying coolant, and the first elastic locking arm 1301 and the second elastic locking arm 1302 of the locking part 103 are used to lock the cooling pipe.

[0060] In the CCS assembly of the battery pack in this embodiment, the FPC acquisition boards 101 of the two signal acquisition components 1 are arranged in an overlapping manner, which makes the structure more compact and can effectively reduce the space occupied by the signal acquisition components 1 inside the battery pack, thereby enabling the battery pack to accommodate more batteries and thus effectively improving the performance of the battery pack.

[0061] The above provides a detailed description of a CCS component and battery pack provided by this utility model. For those skilled in the art, based on the ideas of the embodiments of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A CCS assembly, characterized by, The CCS component includes a signal acquisition component (1), which includes an FPC acquisition board (101) and a connector (102). The connector (102) is disposed at the first end of the FPC acquisition board (101). The number of signal acquisition components (1) is two. The FPC acquisition boards (101) of the two signal acquisition components (1) are stacked in a third direction. The connectors (102) of the two signal acquisition components (1) are spaced apart along a second direction, which is the width direction of the CCS component and the third direction is the height direction of the CCS component.

2. The CCS assembly of claim 1, wherein, The connector (102) has its insertion interface facing away from the FPC acquisition board (101) along a first direction, which is the length direction of the CCS component.

3. The CCS assembly of claim 2, wherein, The connector (102) has a locking part (103) at its bottom, which is used to lock and fix the connector (102). The engaging part (103) includes a base (1031), a first elastic locking arm (1032), and a second elastic locking arm (1033). The first elastic locking arm (1032) and the second elastic locking arm (1033) are both connected to the base (1031) and are symmetrically arranged about the central axis of the base (1031). The first elastic locking arm (1032) and the second elastic locking arm (1033) are respectively used for locking and fixing.

4. The CCS assembly of claim 1, wherein, The FPC acquisition board (101) is provided with a connection part (104) for connecting with the connector (102), and a buffer structure is provided between the connection part (104) and the FPC acquisition board (101).

5. The CCS assembly of claim 1, wherein, The FPC acquisition board (101) also includes a board body, and the board body is provided with a through groove (106). The through groove (106) penetrates the FPC acquisition board (101) to divide the board body into an acquisition part (108) and a main body part (107). The acquisition part (108) is provided with a first acquisition terminal (110). The first acquisition terminal (110) is sequentially connected to the FPC acquisition board (101) along a first direction. The first acquisition terminals (110) of the two signal acquisition components (1) are arranged facing each other in a second direction for electrically connecting the cylindrical batteries arranged on both sides of the FPC acquisition board (101). A deformation buffer groove (113) is provided between two adjacent acquisition units (108); a weak part (109) is connected between the acquisition unit (108) and the main body (107).

6. The CCS assembly of claim 5, wherein, The acquisition unit (108) is disposed on one side edge of the FPC acquisition board (101) along the second direction. The projections of the acquisition units (108) of the two signal acquisition components (1) in the third direction do not overlap, and they are staggered along the first direction so that the first acquisition terminals (110) of the two signal acquisition components (1) are arranged facing each other and staggered.

7. The CCS assembly of claim 6, wherein, The FPC acquisition board (101) has an extension (112) protruding from one side edge along the second direction. The extension (112) is bent and extended, and a second acquisition terminal (111) is connected to one end away from the FPC acquisition board (101). The extensions (112) of the two signal acquisition components (1) are arranged facing each other in the second direction and spaced apart from each other in the first direction. The distance between the extensions (112) of two adjacent signal acquisition components (1) in the first direction is greater than 4 times the distance between the acquisition portions (108) of two adjacent signal acquisition components (1) in the first direction.

8. The CCS assembly of claim 4, wherein, The buffer structure includes a connecting part (105) for connecting the connecting part (104) and the FPC acquisition board (101). The connecting part (105) has a concave-convex structure, and the connecting part (105) is bent and connected to the FPC acquisition board (101) and extends along the third direction.

9. The CCS assembly of claim 8, wherein, The buffer structure also includes a folding portion connecting the connecting part (105) and the FPC acquisition board (101). The folding portion folds together along the third direction, with one end of the folding portion connected to the connecting part (105) along the second direction and one end of the folding portion connected to the FPC acquisition board (101) along the first direction, which is the length direction of the CCS component.

10. A battery pack, characterized by, It includes a housing, a battery module, and a CCS component as described in any one of claims 1 to 9.

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