CCS assembly and battery pack

Abstract

The present application relates to a CCS assembly and a battery pack. The CCS assembly comprises: a mounting bracket; a busbar group, arranged on the mounting bracket, the busbar group comprising a plurality of busbar pieces which are arranged at intervals; a plurality of bundling and fixing parts, arranged on the mounting bracket, in the width direction of the mounting bracket, the bundling and fixing parts each being arranged beside an area between two adjacent busbar pieces; and wire harnesses, fixed on the mounting bracket by means of the bundling and fixing parts.

Description

A CCS component and battery pack

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 29, 2024, with application number 2024206474284. The entire contents of the above application are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of battery technology, and in particular to a CCS component and a battery pack. Background Art

[0003] The CCS assembly (called Cells Contact System in English and integrated busbar or wiring harness board integration, battery cover assembly in Chinese) is mainly composed of signal acquisition components (FPC, PCB, FFC, etc.), plastic structural parts, copper and aluminum busbars, etc., which are connected into a whole through processes such as hot pressing or riveting to achieve high-voltage series and parallel connection of battery cells, as well as battery temperature sampling and battery cell voltage sampling functions. The temperature and voltage are provided to the BMS system through the FPC / PCB and connector components. In the process of preparing the CCS assembly, wiring holes are usually set on the mounting bracket, and the wiring harness is fixed with cable ties. However, the positions of the wiring holes on the mounting bracket are usually arranged at intervals, and the set positions are not fixed. Therefore, in actual use, it is found that when the wiring holes are located next to the aluminum busbar, the cable ties easily interfere with the aluminum busbar, and there is room for improvement. Technical issues

[0004] Avoid direct contact and mutual interference between the cable harness fixing parts and the busbar parts in the CCS assembly. Technical Solutions

[0005] In a first aspect, the present application provides a CCS component, including:

[0006] Mounting bracket;

[0007] A busbar group is arranged on the mounting bracket, the busbar group includes a plurality of busbar members arranged at intervals;

[0008] a plurality of wire harness fixing portions provided on the mounting bracket, wherein the wire harness fixing portions are provided beside an area between two adjacent busbar components in a width direction of the mounting bracket;

[0009] A wire harness is fixed on the mounting bracket through a wire harness fixing portion.

[0010] In a second aspect, the present application provides a battery pack, comprising: the above-mentioned CCS component. Beneficial effects

[0011] In actual use, the location of the harness fixing portion on the mounting bracket is carefully designed and specifically positioned to the side of the area between two adjacent busbars. This arrangement is equivalent to reserving a location for the harness fixing portion to the side of the area between the two busbars. When the harness fixing portion is used to secure the wiring harness, it does not interfere with the busbars, thus improving the overall layout. Therefore, the CCS assembly of this application adjusts the layout of the harness fixing portion according to the busbar arrangement to avoid direct contact between the harness fixing portion and the busbars; it also provides more standardized wiring arrangement, which can improve the overall aesthetics. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] FIG1 is a schematic structural diagram of a CCS assembly according to an embodiment of the present application;

[0013] FIG2 is a schematic structural diagram of point A in FIG1 ;

[0014] FIG3 is a bottom schematic diagram of a CCS assembly according to an embodiment of the present application;

[0015] FIG4 is a schematic structural diagram of a mounting bracket in a CCS assembly according to an embodiment of the present application;

[0016] FIG5 is a schematic structural diagram of a buffer layer in a CCS assembly according to an embodiment of the present application;

[0017] Figure markings: 1-mounting bracket, 2-busbar, 3-wire bundle hole, 4-wire bundle, 5-buffer layer, 51-first avoidance gap, 52-second avoidance gap, 53-fifth avoidance gap, 54-third avoidance gap, 55-fourth avoidance gap, 6-pressure relief hole, 7-first wire binding hole, 8-wire binding hole reserved for temperature sensing, 9-wire binding hole reserved for pressure sampling, 10-wire bundle fixing part. Modes for Carrying Out the Invention

[0018] An embodiment of the present application discloses a CCS assembly. Referring to Figures 1 to 5, the CCS assembly includes a mounting bracket 1; the CCS assembly also includes a busbar group arranged on the mounting bracket 1, the busbar group includes a plurality of busbar pieces 2 arranged at intervals; the CCS assembly also includes a plurality of wire harness fixing portions 10 arranged on the mounting bracket 1, and in the width direction of the mounting bracket 1, the wire harness fixing portion 10 is arranged on the side of the area between two adjacent busbar pieces 2; the CCS assembly also includes a wiring harness 4, which is fixed to the mounting bracket 1 through the wire harness fixing portion 10.

[0019] In specific use, the position of the wire harness fixing portion 10 provided on the mounting bracket 1 is designed and developed, and is specially provided on the side of the area between the two adjacent busbar components 2. This setting is equivalent to reserving a work station for the wire harness fixing portion 10 on the side of the area between the two busbar components 2. When the wire harness fixing portion 10 is used to fix the wiring harness 4, the wire harness fixing portion 10 will not interfere with the busbar component 2, thereby improving the overall position layout. Therefore, this CCS component will adjust the layout of the wire harness fixing portion 10 according to the arrangement of the busbar component 2 to avoid direct contact between the wire harness fixing portion 10 and the busbar component 2; and the arrangement of the wiring harness 4 will be more standardized, which can improve the overall aesthetics.

[0020] It should be noted that the number of the wire harness fixing parts 10 can be specifically multiple, and the specific positional relationship between the wire harness fixing parts 10 and the busbar parts 2 can be determined according to the specific working conditions; for example, a wire harness fixing part 10 can be set on the side of the area between each two adjacent busbar parts 2; for another example, two adjacent busbar parts 2 are set as a group, and a wire harness fixing part 10 is set on the side of the area between two adjacent busbar parts 2 in the same group, and there is no need to set a wire harness fixing part 10 on the side of the area between two adjacent busbar parts 2 in different groups, which can reduce the manufacturing process; for another example, two or more wire harness fixing parts 10 can be set on the side of the area between each two adjacent busbar parts 2, etc.

[0021] In some embodiments, the CCS assembly further includes a buffer layer 5 disposed on the mounting bracket 1. The busbar assembly is disposed at the top of the mounting bracket 1 along its thickness, and the buffer layer 5 is disposed at the bottom of the mounting bracket 1 along its thickness. A first avoidance notch 51 is provided on the buffer layer 5 relative to the wiring harness fixture 10. This arrangement effectively prevents direct contact between the wiring harness fixture 10 and the buffer layer 5, which could otherwise interfere with the wiring harness fixture 10. This prevents localized protrusions and further enhances the overall aesthetics. Furthermore, the buffer layer 5 is positioned to prevent direct contact between the battery cells and the mounting bracket 1, better protecting them and providing support, cushioning, and shock absorption.

[0022] In some embodiments, the thickness of the buffer layer 5 itself is less than or equal to the height of the battery cell poles assembled with the busbar 2. This configuration allows for better welding between the busbar 2 and the battery cell poles without interference from the buffer layer 5, facilitating better assembly.

[0023] In some embodiments, the buffer layer 5 may be EVA foam, wherein the EVA foam is ethylene-vinyl acetate copolymer foam, which has low density, high elasticity, good heat resistance and low-temperature flexibility, as well as good chemical stability and aging resistance.

[0024] Of course, in some other embodiments, the buffer layer 5 may also be made of materials such as PE, ECR, EVA+CR, and silicone foam.

[0025] In some embodiments, the harness fixing portion 10 includes a harness hole 3 and a fixing strap (not shown) that cooperates with the harness hole 3. The harness 4 is secured by the harness hole 3 and the fixing strap. In actual use, the position of the harness hole 3 provided on the mounting bracket 1 is designed and developed, specifically positioned between two adjacent busbar components 2. This arrangement is equivalent to reserving a reserved position between the two busbar components 2 for the fixing strap to be assembled. When the fixing strap is used to secure the harness hole 3, it will not interfere with the busbar component 2, thereby improving the overall position layout. Therefore, the CCS assembly adjusts the layout of the harness hole 3 according to the arrangement of the busbar component 2 to avoid direct contact between the fixing strap and the busbar component 2.

[0026] In some embodiments, the fixing belt can be specifically a cable tie or a binding belt, which has a simple structure, is easy to produce and manufacture, and reduces the manufacturing difficulty.

[0027] Of course, in other embodiments, the harness fixing portion 10 may also be a snap-fit ​​groove, through which the harness 4 is snap-fitted and fixed.

[0028] In some embodiments, a first avoidance notch 51 is provided on the buffer layer 5 relative to the cable tie fixing portion 10. This effectively prevents direct contact between the cable tie fixing portion 10 and the buffer layer 5, which would otherwise interfere with the buffer layer 5 and the fixing tape, thereby avoiding local protrusions and further improving the overall aesthetics.

[0029] In some embodiments, the mounting bracket 1 is provided with a pressure relief hole group comprising a plurality of spaced-apart pressure relief holes 6. The harness fixture 10 is positioned between the pressure relief hole group and the busbar group. This arrangement allows the wiring harness 4 to be properly distributed adjacent to the pressure relief holes 6, preventing the wiring harness 4 from blocking the holes 6 and causing anomalies, thereby improving the safety of the CCS assembly.

[0030] In some embodiments, at least one harness fixing portion 10 is disposed between two adjacent pressure relief holes 6. This configuration can also prevent the harness fixing portion 10 from blocking the pressure relief holes 6 and causing abnormalities, thereby improving the safety of the CCS assembly.

[0031] It should be noted that the number of the wire harness fixing parts 10 can be specifically multiple, and the specific positional relationship between the wire harness fixing parts 10 and the pressure relief holes 6 can be determined according to the specific working conditions; for example, a wire harness fixing part 10 can be set between every two adjacent pressure relief holes 6; for example, two adjacent pressure relief holes 6 are set as a group, and a wire harness fixing part 10 is set between two adjacent pressure relief holes 6 in the same group, and there is no need to set a wire harness fixing part 10 between two adjacent pressure relief holes 6 in different groups, which can reduce the manufacturing process; for example, two or more wire harness fixing parts 10 can be set between every two adjacent pressure relief holes 6, etc.

[0032] It should also be noted that the specific position of the wire harness fixing portion 10 can be set to the side of the area between two adjacent pressure relief holes 6, or in order to make the structure more compact, part of the structure of the wire harness fixing portion 10 itself can be set to the area between two adjacent pressure relief holes 6, which is not limited here.

[0033] In some embodiments, the mounting bracket 1 is provided with first binding holes 7 for securing the output ends of the wiring harness 4. These first binding holes 7 are located adjacent to the busbar assembly and are positioned at both ends of the mounting bracket 1 along its length. This arrangement effectively secures the output ends of the wiring harness 4, preventing dislocation and other potential anomalies during use, thereby improving the safety of the CCS assembly.

[0034] In some embodiments, a second avoidance notch 52 is also provided on the buffer layer 5 at a position relative to the first wire binding hole 7 .

[0035] In some embodiments, the mounting bracket 1 is provided with a set of reserved temperature-sensing binding holes for securing the temperature wires. The set of reserved temperature-sensing binding holes is located adjacent to the busbar assembly and includes a plurality of spaced-apart reserved temperature-sensing binding holes 8. This arrangement effectively secures the temperature wires, preventing them from becoming dislocated during use and causing anomalies, thereby improving the safety of the CCS assembly.

[0036] In some embodiments, a third avoidance notch 54 is also provided on the buffer layer 5 at a position relative to the temperature-sensing reserved wire binding hole 8 .

[0037] In some embodiments, multiple temperature-sensing wire binding holes 8 and multiple wire harness fixing portions 10 are alternately arranged. Specifically, multiple temperature-sensing wire binding holes 8 and multiple wire harness holes 3 are alternately arranged. This arrangement fully utilizes the space on the mounting bracket 1, making the structure more compact and more standardized for the arrangement of the wire harness 4, thereby improving the overall aesthetics.

[0038] In some embodiments, the mounting bracket 1 is provided with a set of reserved binding holes for securing the pressure-collecting wires. The reserved binding holes 9 are located adjacent to the busbar assembly and include a plurality of spaced-apart reserved binding holes 9. This arrangement effectively secures the pressure-collecting wires, preventing them from dislocating during use and causing anomalies, thereby improving the safety of the CCS assembly.

[0039] In some embodiments, a fourth avoidance notch 55 is also provided on the buffer layer 5 at a position relative to the wire binding hole 9 reserved for pressure collection.

[0040] In some embodiments, multiple pre-wired holes 9 reserved for pressure collection and multiple wire harness fixing portions 10 are alternately arranged. Specifically, multiple pre-wired holes 9 reserved for pressure collection and multiple wire harness holes 3 are alternately arranged. This arrangement fully utilizes the space on the mounting bracket 1, making the structure more compact while also ensuring more standardized arrangement of the wire harness 4 and improving the overall aesthetics.

[0041] In some embodiments, a plurality of pressure-collecting wire binding holes 9 and a plurality of temperature-sensing wire binding holes 8 are spaced apart to form a group, and a common fifth avoidance notch 53 is provided on the buffer layer 5 relative to the positions of the pressure-collecting wire binding holes 9 and the temperature-sensing wire binding holes 8 arranged in the group. This arrangement can form a more compact structural layout on the buffer layer 5, reduce production processes, and indirectly improve the overall appearance.

[0042] In some embodiments, two rows of busbar groups are provided, spaced apart along the width of the mounting bracket 1. Two rows of harness fixtures 10 are provided, spaced apart along the width of the mounting bracket 1, with the two rows of harness fixtures 10 positioned between the two rows of busbar groups. Mounting bracket 1 is provided with a row of pressure relief holes, spaced apart between the two rows of harness fixtures 10. This arrangement allows the wiring harness 4 to be properly distributed on both sides of the pressure relief holes 6, preventing the wiring harness 4 from blocking the pressure relief holes 6 and causing anomalies, thereby improving the safety of the CCS assembly.

[0043] In some embodiments, the multiple busbar components 2 in each row of busbar groups are spaced apart along the length of the mounting bracket 1; the multiple harness holes 3 in each row of harness fixing portions 10 are spaced apart along the length of the mounting bracket 1; and the multiple pressure relief holes 6 in each row of pressure relief hole groups are spaced apart along the length of the mounting bracket 1. This arrangement fully utilizes the space on the mounting bracket 1, provides more standardized arrangement of the harness 4, and improves the overall aesthetics.

[0044] An embodiment of the present application also discloses a battery pack, including the above-mentioned CCS component. Therefore, in the specific use of this battery pack, the position of the wire harness fixing portion 10 set on the mounting bracket 1 is designed and developed, and is specially set on the side of the area between two adjacent busbar components 2. Such a setting is equivalent to reserving a work position for the wire harness fixing portion 10 on the side of the area between the two busbar components 2. When the wire harness fixing portion 10 is used to fix the wiring harness 4, the wire harness fixing portion 10 will not interfere with the busbar component 2, thereby improving the overall position layout. Therefore, this CCS component will adjust the layout of the wire harness fixing portion 10 according to the arrangement of the busbar component 2 to avoid direct contact between the wire harness fixing portion 10 and the busbar component 2; and the arrangement of the wiring harness 4 will be more standardized, which can improve the overall aesthetics.

Claims

1. A CCS component, comprising: Mounting bracket (1); A busbar group arranged on the mounting bracket (1), the busbar group comprising a plurality of busbar pieces (2) arranged at intervals; a plurality of wire harness fixing portions (10) provided on the mounting bracket (1), wherein the wire harness fixing portions (10) are provided on the side of the area between two adjacent busbar components (2) in the width direction of the mounting bracket (1); A wiring harness (4) is fixed to the mounting bracket (1) via a wiring harness fixing portion (10).

2. A CCS assembly according to claim 1, further comprising a buffer layer (5) arranged on the mounting bracket (1), the busbar group being arranged at the top of the mounting bracket (1) in the thickness direction, the buffer layer (5) being arranged at the bottom of the mounting bracket (1) in the thickness direction, and a first avoidance notch (51) being arranged on the buffer layer (5) at a position relative to the harness fixing portion (10).

3. A CCS assembly according to claim 2, wherein: The harness fixing portion (10) comprises a harness hole (3) and a fixing belt matched with the harness hole (3), and the harness (4) is fixed by the harness hole (3) and the fixing belt.

4. A CCS assembly according to claim 2, wherein: The harness fixing portion (10) is a clamping groove, and the harness (4) is clamped and fixed via the clamping groove.

5. A CCS assembly according to any one of claims 1 to 4, wherein: The mounting bracket (1) is provided with a pressure relief hole group, the pressure relief hole group comprising a plurality of pressure relief holes (6) arranged at intervals, and the harness fixing portion (10) is arranged between the pressure relief hole group and the busbar group.

6. A CCS assembly according to claim 5, wherein: At least one of the wire harness fixing portions (10) is arranged between two adjacent pressure relief holes (6).

7. A CCS assembly according to any one of claims 2 to 4, wherein: The mounting bracket (1) is provided with a first wire binding hole (7) for constraining the output end of the wire harness (4), the first wire binding hole (7) being located beside the busbar group, and the first wire binding hole (7) being provided at both ends of the mounting bracket (1) along its own length direction; A second avoidance notch (52) is provided on the buffer layer (5) at a position relative to the first wire binding hole (7).

8. A CCS assembly according to any one of claims 2 to 4, wherein: The mounting bracket (1) is provided with a temperature sensing reserved wire binding hole group for constraining the temperature wire, the temperature sensing reserved wire binding hole group is located beside the bus bar group, and the temperature sensing reserved wire binding hole group includes a plurality of temperature sensing reserved wire binding holes (8) arranged at intervals; A third avoidance notch (54) is provided on the buffer layer (5) at a position relative to the temperature-sensing reserved wire binding hole (8).

9. A CCS assembly according to claim 8, wherein: A plurality of temperature-sensing reserved wire binding holes (8) and a plurality of wire harness fixing portions (10) are arranged alternately.

10. A CCS assembly according to any one of claims 2 to 4, wherein: The mounting bracket (1) is provided with a group of reserved binding holes for pressure collection for constraining the pressure collection line, the reserved binding holes (9) for pressure collection are located beside the busbar group, and the reserved binding holes for pressure collection include a plurality of reserved binding holes (9) for pressure collection arranged at intervals; A fourth avoidance notch (55) is provided on the buffer layer (5) at a position relative to the reserved binding hole (9) for pressure collection.

11. A CCS assembly according to claim 10, wherein: A plurality of pressure-collecting reserved wire binding holes (9) and a plurality of wire bundle fixing portions (10) are arranged alternately.

12. A CCS assembly according to any one of claims 2 to 4, wherein: The mounting bracket (1) is provided with a plurality of reserved binding holes (9) for pressure sampling for constraining the temperature line and a plurality of reserved binding holes (8) for temperature sensing for constraining the pressure sampling line. The plurality of reserved binding holes (9) for pressure sampling and the plurality of reserved binding holes (8) for temperature sensing are arranged in pairs to form a group. The buffer layer (5) is provided with a common fifth avoidance notch (53) at a position relative to the position of the reserved binding holes (9) for pressure sampling and the reserved binding holes (8) for temperature sensing arranged in a group.

13. A CCS assembly according to any one of claims 1-4, 6, 9, and 11, wherein: The busbar groups are arranged in two rows, and the two rows of busbar groups are spaced apart along the width direction of the mounting bracket (1); The wire harness fixing portions (10) are provided in two rows, the two rows of wire harness fixing portions (10) are spaced apart along the width direction of the mounting bracket (1), and the two rows of wire harness fixing portions (10) are provided between the two rows of busbar groups; A row of pressure relief hole groups is provided on the mounting bracket (1), and the row of pressure relief hole groups is arranged between two rows of wire harness fixing portions (10).

14. A CCS assembly according to any one of claims 2-4, 9 and 11, wherein: The thickness of the buffer layer (5) itself is less than or equal to the height of the pole of the battery cell assembled with the busbar piece (2).

15. A battery pack comprising a CCS assembly according to any one of claims 1 to 14.

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