Ccs assembly and battery pack

Abstract

The application provides a CCS assembly and a battery pack. The CCS assembly comprises: a busbar; a plastic support, an upper accommodation groove for accommodating the busbar is arranged on the upper side of the plastic support, a lower accommodation groove for accommodating a single battery is arranged on the lower side of the plastic support, and the upper accommodation groove and the lower accommodation groove are communicated to enable the busbar to abut to the single battery; and a glue guide groove arranged on the upper side of the plastic support and communicated to the upper accommodation groove adjacent to the glue guide groove. The CCS assembly of the application can accurately guide glue into the gap between the busbar and the upper accommodation groove and the gap between the single battery and the lower accommodation groove by means of the glue guide groove, avoids coating glue on the upper surface of the busbar and other irrelevant areas of the plastic support, improves the bonding efficiency, reduces the amount of glue under the premise of ensuring the bonding strength, and saves the production cost.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more particularly to a CCS component and battery pack. Background Technology

[0002] During application, batteries require a Battery Management System (BMS) to collect temperature and pressure signals for battery management. Existing battery packs often use CCS (Computer-Controlled System) modules for series and parallel connection of individual cells within the pack, as well as for temperature and pressure signal acquisition.

[0003] A typical CCS assembly includes components such as busbars, brackets, and data acquisition harnesses. During use, the busbars and data acquisition harnesses are usually integrated on the bracket. After being assembled into the battery pack, the entire CCS assembly is typically potted with adhesive to bond and fix the aluminum busbars and data acquisition harnesses to the bracket.

[0004] Specifically, the existing bracket has an upper receiving groove on its side for accommodating the manifold. When applying glue, the glue is poured directly onto the manifold. The glue flows to the gap between the manifold and the upper receiving groove to achieve bonding and fixation. However, this fixing method has a large glue irrigation area and a long time for the glue to flow to the gap between the manifold and the upper receiving groove, resulting in high production costs and low bonding efficiency. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the first objective of the present invention is to provide a CCS component that is easy to bond and requires less adhesive.

[0006] The second objective of this invention is to provide a battery pack that is highly safe and low in cost.

[0007] The embodiments of the present invention are achieved through the following technical solutions:

[0008] A CCS assembly includes: a busbar; a plastic support having an upper receiving groove on its upper side for accommodating the busbar and a lower receiving groove on its lower side for accommodating a single battery cell, the upper receiving groove and the lower receiving groove being connected so that the busbar can abut against the single battery cell; and an adhesive guide groove disposed on the upper side of the plastic support, the adhesive guide groove being connected to the adjacent upper receiving groove.

[0009] According to a preferred embodiment, the busbar includes an input busbar, a guide busbar, a series busbar, and an output busbar, each of which is embedded in its corresponding upper receiving groove. The guide busbar, in conjunction with the input busbar and the output busbar, connects two adjacent individual cells in series along a first direction, and the guide busbar, in conjunction with the input busbar and the output busbar, connects two adjacent individual cells in parallel along a second direction. A plurality of guide busbars connected in series along the first direction are defined as a current busbar group, and the series busbar is used to connect two current busbar groups adjacent along the second direction. The adhesive guide groove extends along the first direction.

[0010] According to a preferred embodiment, the CCS component further includes a data acquisition harness, the input end of which is electrically connected to the busbar or the individual battery cell; a data acquisition harness groove is provided on the plastic bracket extending along the first direction, the data acquisition harness is embedded in the data acquisition harness groove, and the data acquisition harness groove is provided in a one-to-one correspondence with the current busbar group; the data acquisition harness groove is provided adjacent to the adhesive guide groove, and the data acquisition harness groove and the adhesive guide groove provided adjacent to the data acquisition harness groove are connected.

[0011] According to a preferred embodiment, the height of the bottom inner side of the adhesive guide groove is not lower than the height of the bottom inner side of the wire harness groove.

[0012] According to a preferred embodiment, a glue discharge hole is provided through the bottom of the wire harness groove.

[0013] According to a preferred embodiment, the upper side of the plastic bracket is provided with a branch groove, the extension direction of the branch groove is set at an angle to the extension direction of the wire harness groove; the branch groove is used to connect the wire harness groove and the upper receiving groove corresponding to the wire harness groove, and the acquisition single line of the acquisition wire harness extends through the branch groove to the upper receiving groove corresponding to the acquisition single line; the height of the bottom inner side of the adhesive guide groove is not lower than the height of the bottom inner side of the branch groove.

[0014] According to a preferred embodiment, the height of the bottom inner side of the upper receiving groove is not higher than the height of the bottom inner side of the branch groove; the height of the bottom inner side of the upper receiving groove is not higher than the height of the bottom inner side of the adhesive guiding groove.

[0015] According to a preferred embodiment, the current busbar is provided with adhesive guide grooves on both sides along the first direction.

[0016] According to a preferred embodiment, the upper receiving groove includes a plurality of first grooves arranged along the first direction, each first groove including at least two mounting areas spaced apart along the second direction, with adjacent mounting areas connected by a second groove; at least one adhesive guiding groove is disposed between adjacent mounting areas and is connected to the second groove.

[0017] According to a preferred embodiment, the output end of the plastic bracket is provided with a lead wire notch corresponding to the wire harness slot, the lead wire notch is connected to the corresponding wire harness slot, and the acquisition wire harness passes through the lead wire notch and extends out of the wire harness slot; the CCS assembly also includes a sealing buckle provided on the plastic bracket for sealing the lead wire notch; the acquisition wire harness passes through the sealing buckle and extends out of the wire harness slot.

[0018] According to a preferred embodiment, the sealing buckle includes a base plate, a limiting plate, and a connecting block, wherein the base plate and the limiting plate are connected by the connecting block; the connecting block is engaged in the lead wire notch, the limiting plate is located inside the output end of the plastic bracket, and the base plate is located outside the output end of the plastic bracket; a wire placement hole is provided on the base plate, and the acquisition wire harness extends out of the wire harness groove through the wire placement hole.

[0019] According to a preferred embodiment, the plastic support includes a body and a wire harness tray disposed at the output end of the body. The wire harness groove, the upper receiving groove, and the lower receiving groove are all disposed on the body. The wire harness tray includes a horizontal plate and a vertical plate connected to each other. The vertical plate is connected to the output end of the body, and the horizontal plate is disposed on the side of the vertical plate away from the body. The lead wire notch is formed in the vertical plate, which is located between the base plate and the limiting plate. The base plate is provided with a wire placement hole, through which the acquisition wire harness extends out of the wire harness groove and into the area of ​​the horizontal plate.

[0020] According to a preferred embodiment, the CCS assembly further includes a cable tie for binding the acquisition wire harness in the horizontal plate area; the lower side of the horizontal plate is provided with two limiting protrusions, and the area between the two limiting protrusions forms a limiting groove for limiting the cable tie, the cable tie being located in the limiting groove; the horizontal plate is provided with a binding hole for threading the cable tie.

[0021] According to a preferred embodiment, a pressure line is provided at the wire harness groove; the acquisition wire harness is located between the bottom of the wire harness groove and the pressure line; the acquisition wire harness includes a plurality of acquisition single wires, and the pressure line is provided with a through groove for the acquisition single wires to enter the wire harness groove.

[0022] A battery pack including the aforementioned CCS component.

[0023] The technical solutions of the embodiments of the present invention have at least the following advantages and beneficial effects:

[0024] This invention employs a guide groove to precisely direct the adhesive to the gap between the busbar and the upper receiving groove, as well as the gap between the individual battery and the lower receiving groove. This avoids applying adhesive to the upper surface of the busbar and other irrelevant areas of the plastic bracket, improving bonding efficiency and reducing adhesive usage while ensuring bonding strength, thus saving production costs. Attached Figure Description

[0025] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the battery pack structure provided in an embodiment of the present invention;

[0027] Figure 2 This is an exploded view of the CCS component provided in an embodiment of the present invention;

[0028] Figure 3 for Figure 2 A partially enlarged schematic diagram of the structure at point A;

[0029] Figure 4 for Figure 2 A magnified view of the structure at point B in the middle;

[0030] Figure 5 A three-dimensional structural diagram of the CCS component provided in an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A magnified view of the structure at point C;

[0032] Figure 7 This is a three-dimensional structural diagram of the sealing buckle provided in an embodiment of the present invention;

[0033] Figure 8 This is a top view of the CCS component provided in an embodiment of the present invention;

[0034] Figure 9 This is a bottom view of the CCS component provided in an embodiment of the present invention.

[0035] Icons: 100, Single cell; 200, CCS module; 201, Input row; 202, Current guide; 203, Series row; 204, Plastic bracket; 204a, Body; 204b, Wiring harness tray; 204c, Vertical plate; 204d, Horizontal plate; 2041, Wiring harness groove; 2042, Adhesive guide groove; 2043, Sealing buckle; 20431, Substrate; 20432, Limiting plate; 20433, Connecting block; 20435, Cable placement hole; 20436, Cable entry notch ; 2044, Branch trough; 2045, Pressure line; 2046, Through groove; 2047, Installation area; 2048, Second groove; 205, Acquisition harness; 2051, Acquisition single line; 206, Output row; 207, Adhesive drain hole; 209, Cable tie; 210, Binding hole; 211, Rib plate; 212, Lead wire notch; 213, Weakening structure hole; 214, Lower receiving groove; 215, Limiting protrusion; 300, BMS; 400, Connector; 500, Serpentine liquid cooling plate. Detailed Implementation

[0036] To better understand and implement this invention, the technical solutions in the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings.

[0037] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0038] In the description of this invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more; and the term "and / or" includes any and all combinations of one or more of the associated listed items. In particular, references to "the / described" object or "an" object are also intended to indicate one of a possible plurality of such objects.

[0039] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the specification of this application is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having" and any variations thereof in the specification, claims and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0040] Furthermore, in the description of this invention, it should be understood that the directional terms such as "upper," "lower," "inner," and "outer" are used to describe the angles shown in the accompanying drawings and should not be construed as limiting specific embodiments. It should also be understood that, in the context of an element or feature being connected "upper," "lower," "inner," or "outer" of another element (one or more), it can be directly connected to the other element (one or more) "upper," "lower," "inner," or "outer," or indirectly connected to the other element (one or more) "upper," "lower," "inner," or "outer" through an intermediate element.

[0041] Please refer to Figures 1 to 9 A CCS component 200, applied to a cylindrical power battery module, includes a busbar, a plastic bracket 204, and a guide groove 2042. The plastic bracket 204 has an upper receiving groove on its upper side for accommodating the busbar, and a lower receiving groove 214 on its lower side for accommodating individual cells 100 of the cylindrical power battery module. The upper and lower receiving grooves 214 are connected so that the busbar can abut against the individual cells 100. The guide groove 2042 is located on the upper side of the plastic bracket 204 and connects to the adjacent upper receiving groove. Specifically, as shown... Figure 3 and 4As shown, the plastic bracket 204 includes a body 204a and a wire harness tray 204b disposed at the output end of the body 204a. Both the upper and lower receiving slots 214 are disposed on the body 204a. The body 204a is plate-shaped. The shape of the upper receiving slot is adapted to the shape of the busbar. In use, the busbar is first assembled into the upper receiving groove, and the plastic bracket 204 is attached to the single battery 100, that is, the single battery 100 is assembled into the lower receiving groove 214. Then, glue is poured into the glue guide groove 2042. At this time, the glue in the glue guide groove 2042 flows along the glue guide groove 2042 to the upper receiving groove, that is, the glue in the glue guide groove 2042 flows along the glue guide groove 2042 to the gap between the busbar and the upper receiving groove, thereby achieving the bonding and fixation of the busbar and the plastic bracket 204. At the same time, since the upper receiving groove and the lower receiving groove 214 are connected, the excess glue in the upper receiving groove flows to the gap between the lower receiving groove 214 and the single battery 100, thereby achieving the bonding and fixation between the plastic bracket 204 and the single battery 100. In this embodiment, the bonding strength between the busbar and the plastic support 204 depends on the bonding area between the busbar and the upper receiving groove, and the bonding strength between the plastic support 204 and the individual battery 100 depends on the bonding area between the individual battery 100 and the lower receiving groove 214. Therefore, compared with the traditional potting method, the method of guiding the glue with the glue guide groove 2042 in this embodiment can accurately guide the glue to the gap between the busbar and the upper receiving groove, and the gap between the individual battery 100 and the lower receiving groove 214, avoiding the glue being applied to the upper surface of the busbar and other irrelevant areas of the plastic support 204, improving the bonding efficiency, and reducing the amount of glue used while ensuring the bonding strength, thus saving production costs.

[0042] The aforementioned adhesive is a thermally conductive gel, which not only fixes the parts of the CCS module 200 and the CCS module 200 to the individual cell 100, but also improves the heat dissipation efficiency of the battery.

[0043] like Figure 1 and Figure 8As shown, the busbar includes an input busbar 201, a current guide busbar 202, a series busbar 203, and an output busbar 206. The input busbar 201, current guide busbar 202, series busbar 203, and output busbar 206 are all embedded in their respective upper receiving slots. The current guide busbar 202 works with the input busbar 201 and the output busbar 206 to connect two adjacent single cells 100 in series in a first direction. The current guide busbar 202 also works with the input busbar 201 and the output busbar 206 to connect two adjacent single cells 100 in parallel in a second direction. That is, the current guide busbar 202 is used to work with the input busbar 201 and the output busbar 206 to connect two adjacent single cells 100 in series in the first direction and to connect two adjacent single cells 100 in parallel in the second direction. A plurality of current guide busbars 202 connected in series along the first direction are defined as current busbar groups. The series busbar 203 is used to connect two current busbar groups that are adjacent along the second direction. The adhesive guide groove 2042 extends along the first direction. In this embodiment, the first direction is the left and right direction, and the second direction is the front and rear direction. Further, the cylindrical power battery in this embodiment is composed of six cylindrical power battery modules connected in series in the front and rear direction, i.e., the second direction. A single cylindrical power battery module includes multiple individual cells 100 connected in series in the left and right direction, i.e., the first direction. Multiple individual cells 100 connected in series along the left and right direction are defined as a battery column. A cylindrical power battery module includes two battery columns connected in parallel in the front and rear direction. The current guide 202 is used to connect two adjacent individual cells 100 in series in the left and right direction, and simultaneously connect two adjacent individual cells 100 in the same cylindrical power battery module in parallel in the front and rear direction. The series connection 203 is used to connect two adjacent cylindrical power battery modules in series. The electrical connections of the input line 201, current guide 202, series connection 203, and output line 206 to the individual cells 100 of the cylindrical power battery module, and their assembly with the plastic bracket 204, are existing technologies and will not be described further here. The structure of the adhesive guide groove 2042 extending along the first direction allows multiple upper receiving grooves to be connected in series in the first direction, i.e., the left and right directions, which helps to improve the adhesive dispensing and bonding efficiency.

[0044] like Figure 2 , Figure 4 and Figure 8As shown, the CCS component 200 also includes a data acquisition harness 205, the input end of which is electrically connected to a busbar or a single battery cell 100. A harness groove 2041 extends along a first direction on the plastic bracket 204, and the data acquisition harness 205 is embedded in the harness groove 2041. The harness groove 2041 corresponds one-to-one with a current busbar group. The harness groove 2041 is adjacent to a guide groove 2042, and the harness groove 2041 and the guide groove 2042 adjacent to it are connected. In this embodiment, the input end of the data acquisition harness 205 is connected to at least one of the input busbar 201, output busbar 206, current busbar 202, series busbar 203, and single battery cell 100. In this embodiment, there are six data acquisition harnesses 205, corresponding one-to-one with six cylindrical power battery modules. In this embodiment, the individual acquisition wires 2051 that make up the acquisition harness 205 are soldered one-to-one to all the busbars of the cylindrical power battery module corresponding to the acquisition harness 205, so as to realize comprehensive monitoring of the temperature and pressure signals of the cylindrical power battery module. The wiring harness groove 2041 facilitates the wiring of the individual acquisition wires 2051 that make up the acquisition harness 205, avoiding tangling and knotting of the individual acquisition wires 2051 during the welding process to the busbar, which helps improve work efficiency. At the same time, by storing the acquisition harness 205 in the wiring harness groove 2041, auxiliary fixation of the acquisition harness 205 can be achieved before applying glue. During the glue application stage, the glue in the glue guide groove 2042 can flow into the wiring harness groove 2041 to fix the acquisition harness 205, which can effectively improve the firmness of the acquisition harness 205. Furthermore, the structural design of the wiring harness groove 2041 can reduce the thickness of the CCS module 200, thereby helping to reduce the volume of the cylindrical power battery and improve the energy density of the cylindrical power battery.

[0045] Preferably, the height of the bottom inner side of the adhesive guide groove 2042 is not lower than the height of the bottom inner side of the wire harness groove 2041. This facilitates the flow of adhesive from the adhesive guide groove 2042 into the wire harness groove 2041. Simultaneously, the wire harness groove 2041 also serves to store excess adhesive and to fix the serpentine liquid cooling plate 500. Specifically, for example... Figure 1 and Figure 9The image shows the battery pack provided in this embodiment, including the CCS component 200 and battery modules. Specifically, this battery pack is a cylindrical power battery pack, composed of six cylindrical power battery modules. The battery pack also includes the aforementioned serpentine liquid cooling plate 500, six in number, corresponding one-to-one with the six wiring harness slots 2041. A drain hole 207 is provided through the bottom of each wiring harness slot 2041. When adhesive enters the wiring harness slot 2041, some adhesive flows from the drain hole 207 to the lower side of the plastic bracket 204, reaching the gap between the bottom outer side of the wiring harness slot 2041 and the serpentine liquid cooling plate 500. This allows the serpentine liquid cooling plate 500 to be bonded and fixed to the individual battery 100, and to the plastic bracket 204.

[0046] like Figures 4 to 6 As shown, a branch groove 2044 is provided on the upper side of the plastic bracket 204. The extending direction of the branch groove 2044 is set at an angle to the extending direction of the wire harness groove 2041. The branch groove 2044 is used to connect the wire harness groove 2041 and the upper receiving groove corresponding to the wire harness groove 2041. The acquisition single line 2051 of the acquisition wire harness 205 extends through the branch groove 2044 to the upper receiving groove corresponding to the acquisition single line 2051. The height of the bottom inner side of the adhesive guide groove 2042 is not lower than the height of the bottom inner side of the branch groove 2044. In this embodiment, the angle between the extending direction of the branch groove 2044 and the extending direction of the wire harness groove 2041 is 90°. The adhesive in the guide groove 2042 flows into the upper receiving groove through the branch groove 2044, serving a drainage function. On the other hand, the acquisition single wire 2051 housed in the branch groove 2044 is bonded and fixed to the branch groove 2044 by the adhesive flowing through it, resulting in strong adhesion. This reduces the possibility of the acquisition single wire 2051 shaking during battery pack use, ensuring the strength of the welding point between the acquisition single wire 2051 and the busbar, thus enhancing safety. Preferably, the height of the bottom inner side of the guide groove 2042 is higher than the height of the bottom inner side of the branch groove 2044.

[0047] Furthermore, the height of the bottom inner side of the upper receiving groove is not higher than the height of the bottom inner side of the branch groove 2044; the height of the bottom inner side of the upper receiving groove is not higher than the height of the bottom inner side of the adhesive guiding groove 2042. This facilitates the flow of adhesive in the adhesive guiding groove 2042 to the upper receiving groove, which helps to improve the dispensing efficiency.

[0048] like Figure 4 As shown, in order to improve the glue dispensing efficiency and the quality of the adhesive, the current busbar is provided with glue guide grooves 2042 on both sides along the first direction.

[0049] In this embodiment, as Figure 4 and Figure 8As shown, to further improve the dispensing efficiency and adhesive quality, the upper receiving groove includes a plurality of first grooves arranged along a first direction. Each first groove includes at least two mounting areas 2047 spaced apart along a second direction, with adjacent mounting areas 2047 connected by a second groove 2048. At least one adhesive guiding groove 2042 is disposed between two adjacent mounting areas 2047 and is connected to the second groove 2048. Here, there are two mounting areas 2047, and an adhesive guiding groove 2042 extends between the two mounting areas 2047 along the first direction. In this embodiment, the first groove is used to accommodate the flow guide 202.

[0050] In this embodiment, the output end of the plastic bracket 204 is provided with a lead wire notch 212 corresponding to the wire harness slot 2041. The lead wire notch 212 is connected to the corresponding wire harness slot 2041, and the acquisition wire harness 205 passes through the lead wire notch 212 and extends out of the wire harness slot 2041. The CCS assembly 200 also includes a sealing buckle 2043 disposed on the plastic bracket 204 for sealing the lead wire notch 212. The acquisition wire harness 205 passes through the sealing buckle 2043 and extends out of the wire harness slot 2041. In this embodiment, the output end of the plastic bracket 204 is the end closest to the BMS 300, specifically as follows: Figure 1 The left end is shown. The sealing buckle 2043 here can, on the one hand, fix the output end of the acquisition harness 205 to a certain extent, preventing the acquisition harness 205 from being pulled and thus detached from the solder joint between the acquisition harness 205 and the busbar when assembling components before potting. On the other hand, it can work with the harness groove 2041 to reduce the wiring height of the acquisition harness 205, which is beneficial to reduce the thickness of the CCS module 200, thereby reducing the volume of the battery pack and increasing the energy density of the battery pack. Furthermore, it can seal the lead wire notch 212, i.e., the harness groove 2041, to prevent the glue in the harness groove 2041 from overflowing.

[0051] Furthermore, such as Figure 7As shown, the sealing buckle 2043 includes a base plate 20431, a limiting plate 20432, and a connecting block 20433. The base plate 20431 and the limiting plate 20432 are connected by the connecting block 20433. The connecting block 20433 is engaged in the lead wire notch 212. The limiting plate 20432 is located inside the output end of the plastic bracket 204, and the base plate 20431 is located outside the output end of the plastic bracket 204. A wire placement hole 20435 is provided on the base plate 20431, and the acquisition wire harness 205 extends out of the wire harness groove 2041 through the wire placement hole 20435. Specifically, the wire harness slot 2041 is disposed on the body 204a; the wire harness tray 204b includes a horizontal plate 204d and a vertical plate 204c connected to each other, the vertical plate 204c is connected to the output end of the body 204a, and the horizontal plate 204d is disposed on the side of the vertical plate 204c away from the body 204a; a lead wire notch 212 is formed in the vertical plate 204c and communicates with the wire harness slot 2041, the vertical plate 204c is located between the substrate 20431 and the limiting plate 20432; a wire placement hole 20435 is provided on the substrate 20431, and the acquisition wire harness 205 extends out of the wire harness slot 2041 through the wire placement hole 20435 and extends into the area of ​​the horizontal plate 204d. Furthermore, as... Figure 7 As shown, a wire inlet notch 20436 is provided on the substrate 20431, which connects to the wire placement hole 20435. This wire inlet notch 20436 facilitates the smooth entry of the wire harness 205 into the wire placement hole 20435 when the sealing buckle 2043 is assembled.

[0052] In use, the output end of the acquisition harness 205 extends through the lead wire notch 212 into the area of ​​the horizontal plate 204d. Then, the sealing buckle 2043 is installed at the vertical plate 204c, i.e., at the lead wire notch 212. During this process, the acquisition harness 205 is first assembled into the wire placement hole 20435 through the inlet notch 20436, and then the connecting block 20433 is embedded into the lead wire notch 212. It should be noted that the width of the substrate 20431 is greater than the width of the lead wire notch 212. The wire placement hole 20435 is a round hole. Together with the cloth tape wrapped around the acquisition harness 205, it accommodates the acquisition harness 205 while simultaneously sealing the lead wire notch 212. At the same time, the sealing buckle 2043 can fix the acquisition harness 205, preventing the solder joints of the acquisition harness 205 from being pulled off when the output end of the acquisition harness 205 is tied with cable ties 209, thus improving the firmness of the acquisition harness 205's output end. It should be noted that the steps of assembling the acquisition harness 205 into the harness slot 2041 and binding and fixing the output end of the acquisition harness 205 are performed before the glue-pouring step.

[0053] Furthermore, such as Figure 6 and Figure 9As shown, in this embodiment, the CCS component 200 further includes the aforementioned cable tie 209 for binding the acquisition cable harness 205 within the area of ​​the horizontal plate 204d. Two limiting protrusions 215 are provided on the lower side of the horizontal plate 204d, and a limiting groove for limiting the cable tie 209 is formed between the two limiting protrusions 215, with the cable tie 209 positioned within the limiting groove. A binding hole 210 is provided through the horizontal plate 204d for threading the cable tie 209. In this embodiment, the limiting groove and binding hole 210 prevent the cable tie 209 from shifting, increasing the stability and firmness of the cable tie 209 in binding the output end of the acquisition cable harness 205.

[0054] In this embodiment, the fixing member further includes a pressure line 2045 disposed at the wire harness groove 2041; the acquisition wire harness 205 is located between the bottom of the wire harness groove 2041 and the pressure line 2045; the acquisition wire harness 205 includes multiple acquisition single wires 2051, and the pressure line 2045 is provided with a through groove 2046 for the acquisition single wires 2051 to enter the wire harness groove 2041. In this embodiment, the multiple pressure lines 2045 are evenly distributed at intervals along the extension direction of the wire harness groove 2041. Here, the pressure line 2045 is disposed at the top of the wire harness groove 2041 to limit the acquisition wire harness 205 at the top of the wire harness groove 2041, so as to prevent the acquisition wire harness 205 embedded in the wire harness groove 2041 from detaching from the wire harness groove 2041.

[0055] In this embodiment, the width of the through slot 2046 is greater than or equal to the outer diameter of the acquisition single wire 2051. Preferably, the width of the through slot 2046 is slightly larger than that of the acquisition single wire 2051, which facilitates the assembly of the acquisition single wire 2051 into the wire harness groove 2041 through the through slot 2046, and also reduces the possibility that the acquisition single wire 2051 may detach from the wire harness groove 2041 through the through slot 2046 without human intervention.

[0056] Optionally, the length direction of the through groove 2046 is set at an angle to the extension direction of the wire harness groove 2041. Specifically, the angle between the length direction of the through groove 2046 and the extension direction of the wire harness groove 2041 is 10°-80°. In this embodiment, preferably, the angle between the length direction of the through groove 2046 and the extension direction of the wire harness groove 2041 is 30°. The pressure line 2045 here can, to a certain extent, fix the acquisition wire harness 205, and the structural design of the through groove 2046 makes it easy to manage the individual acquisition wires 2051 of the acquisition wire harness 205.

[0057] In this embodiment, the input row 201, the output row 206 and the series row 203 are all provided with weakened structure holes 213, which can reduce the cross-sectional area of ​​the area. When the circuit is overloaded, the weakened structure hole 213 can be melted, which plays a role in circuit protection.

[0058] In this embodiment, as Figure 9As shown, several stiffening plates 211 are arranged between the longitudinal plate 204c and the bottom surface of the plastic bracket 204. These stiffening plates 211 reinforce the longitudinal plate 204c, that is, the wire harness tray 204b.

[0059] In this embodiment, the output end of the acquisition harness 205 is equipped with a connector 400 for connecting the acquisition harness 205 to the BMS 300.

[0060] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A CCS assembly, characterized by, The CCS assembly (200) comprises: a busbar; a plastic support (204) provided with an upper accommodation groove on the upper side for accommodating the busbar and provided with a lower accommodation groove (214) on the lower side for accommodating a single battery (100), the upper accommodation groove and the lower accommodation groove (214) being communicated to enable the busbar to abut against the single battery (100); a glue guide groove (2042) provided on the upper side of the plastic support (204), the glue guide groove (2042) being communicated to the upper accommodation groove adjacent thereto; the busbar comprises an input busbar (201), a flow guide busbar (202), a series busbar (203) and an output busbar (206), the input busbar (201), the flow guide busbar (202), the series busbar (203) and the output busbar (206) are embedded in the respective upper accommodation groove; the flow guide busbar (202) cooperates with the input busbar (201) and the output busbar (206) to series-connect two single batteries (100) arranged adjacent in a first direction; and the flow guide busbar (202) cooperates with the input busbar (201) and the output busbar (206) to parallel-connect two single batteries (100) arranged adjacent in a second direction; a plurality of the flow guide busbars (202) arranged in series along the first direction are defined as a current busbar group, the series busbar (203) is used to series-connect two current busbar groups arranged adjacent along the second direction; the glue guide groove (2042) is arranged in extension along the first direction; the CCS assembly (200) further comprises a collection harness (205), an input end of the collection harness (205) being electrically connected to the busbar or the single battery (100); a harness groove (2041) is arranged in extension along the first direction on the plastic support (204), the collection harness (205) is embedded in the harness groove (2041), the harness groove (2041) is arranged in one-to-one correspondence with the current busbar group; the harness groove (2041) is arranged adjacent to the glue guide groove (2042), and the harness groove (2041) and the glue guide groove (2042) arranged adjacent thereto are communicated.

2. The CCS assembly of claim 1, wherein, The height of the inner side of the bottom of the glue guide groove (2042) is not less than the height of the inner side of the bottom of the harness groove (2041).

3. The CCS assembly of claim 1, wherein, The bottom of the harness groove (2041) is provided with a glue discharge hole (207) in penetration.

4. The CCS assembly of claim 1, wherein, An upper side of the plastic support (204) is provided with a branch harness groove (2044), an extension direction of the branch harness groove (2044) is arranged at an angle with an extension direction of the harness groove (2041); the branch harness groove (2044) is used to communicate the harness groove (2041) and the upper accommodation groove corresponding to the harness groove (2041), a collection single wire (2051) of the collection harness (205) extends to the upper accommodation groove corresponding to the collection single wire (2051) through the branch harness groove (2044); the height of the inner side of the bottom of the glue guide groove (2042) is not less than the height of the inner side of the bottom of the branch harness groove (2044).

5. The CCS assembly of claim 4, wherein, The height of the inner side of the bottom of the upper accommodating groove is not higher than the height of the inner side of the bottom of the branch groove (2044); The height of the inner side of the bottom of the upper accommodating groove is not higher than the height of the inner side of the bottom of the glue guide groove (2042).

6. The CCS assembly of any one of claims 1-5, wherein, The glue guide groove (2042) is arranged on both sides of the current row along the first direction.

7. The CCS assembly of claim 6, wherein, The upper accommodating groove comprises a plurality of first grooves arranged along the first direction, and each first groove comprises at least two installation areas (2047) arranged along the second direction, and the installation areas (2047) are communicated by a second groove (2048); At least one glue guide groove (2042) is arranged between two adjacent installation areas (2047), and the glue guide groove (2042) is communicated to the second groove (2048).

8. The CCS assembly of any one of claims 1-5, wherein, The output end of the plastic support (204) is provided with a lead opening (212) corresponding to the wire harness groove (2041), the lead opening (212) is communicated to the wire harness groove (2041) corresponding to the lead opening (212), and the collection wire harness (205) passes through the lead opening (212) and extends out of the wire harness groove (2041); The CCS assembly (200) further comprises a sealing buckle (2043) arranged on the plastic support (204), which is used for sealing the lead opening (212); The collection wire harness (205) passes through the sealing buckle (2043) and extends out of the wire harness groove (2041).

9. The CCS assembly of claim 8, wherein, The sealing buckle (2043) comprises a base plate (20431), a limiting plate (20432) and a connecting block (20433), and the base plate (20431) and the limiting plate (20432) are connected by the connecting block (20433); The connecting block (20433) is clamped in the lead opening (212), the limiting plate (20432) is located on the inner side of the output end of the plastic support (204), and the base plate (20431) is located on the outer side of the output end of the plastic support (204); The base plate (20431) is provided with a wire hole (20435), and the collection wire harness (205) extends out of the wire harness groove (2041) through the wire hole (20435).

10. The CCS assembly of claim 9, wherein, The plastic support (204) comprises a body (204a) and a wire harness tray (204b) arranged at the output end of the body (204a), and the wire harness groove (2041), the upper accommodating groove and the lower accommodating groove (214) are arranged on the body (204a); The wire harness tray (204b) comprises a horizontal plate (204d) and a vertical plate (204c) connected to each other, the vertical plate (204c) is connected to the output end of the body (204a), and the horizontal plate (204d) is arranged on the side of the vertical plate (204c) away from the body (204a); The lead opening (212) is arranged on the vertical plate (204c), and the vertical plate (204c) is located between the base plate (20431) and the limiting plate (20432); The substrate (20431) is provided with a wire hole (20435), and the collection wire harness (205) extends out of the wire harness groove (2041) through the wire hole (20435) and extends to the area of the cross plate (204d).

11. The CCS assembly of claim 10, wherein, The CCS assembly (200) further comprises a cable tie (209) for binding the collection wire harness (205) in the area of the cross plate (204d). The lower side of the cross plate (204d) is provided with two limiting protrusions (215), and the area between the two limiting protrusions (215) forms a limiting groove for limiting the cable tie (209), and the cable tie (209) is in the limiting groove. The cross plate (204d) is provided with a binding hole (210) for penetrating the cable tie (209).

12. The CCS assembly of any one of claims 1-5, 9-11, wherein, The wire harness groove (2041) is provided with a wire pressing strip (2045); The collection wire harness (205) is between the bottom of the wire harness groove (2041) and the wire pressing strip (2045); The collection wire harness (205) comprises a plurality of collection single wires (2051), and the wire pressing strip (2045) is provided with a through groove (2046) for the collection single wire (2051) to enter the wire harness groove (2041).

13. A battery pack, characterized by The CCS assembly (200) comprises the CCS assembly (200) according to any one of claims 1-12. The CCS assembly (200) comprises the CCS assembly (200) according to any one of claims 1-12.

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