Support, CCS assembly and battery pack

Abstract

The utility model relates to the technical field of batteries, and discloses a support, a CCS assembly and a battery pack. The support comprises a support body, an inverted buckling structure and a horizontal limiting column, the support body is provided with a containing groove used for containing the busbar, the containing groove is provided with a bottom face and side walls extending around the bottom face, and the side walls comprise the first side wall and the second side wall which are oppositely arranged; the inverted buckle structure is arranged on the first side wall and used for abutting against the busbar. The horizontal limiting column is arranged on the bottom surface and is close to one side of the second side wall, the busbar is provided with a guide hole corresponding to the horizontal limiting column, and the busbar is clamped on the horizontal limiting column through the guide hole. According to the utility model, the bracket can fix the busbar by using the structure of the bracket, and avoids fixing the busbar by adopting a hot riveting column mode, so that a hot melting process is avoided, the production time is shortened, the production cycle is shortened, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, and in particular to a bracket, a CCS component and a battery pack. Background Art

[0002] With the development of economy and the advancement of science and technology, power batteries are widely used in industries such as electric vehicles. Battery modules include CCS (Cells Contact System, integrated busbar) components, which are mainly composed of signal acquisition components, brackets and connection components. At present, when the busbar is fixedly connected to the bracket, hot riveting columns are usually set on the bracket, and the openings of the busbar are fixed to the bracket by hot riveting. This fixing method increases the hot melting process, so while increasing the cost, the production cycle will also be longer. Utility Model Content

[0003] The main purpose of the utility model is to provide a bracket, a CCS assembly and a battery pack, aiming to solve the technical problem that the existing bracket fixes the busbar by means of hot riveting columns, which leads to an increase in hot melting process, increased costs and a longer production cycle.

[0004] To achieve the above object, the utility model provides a bracket, the bracket includes a bracket body, the bracket body is provided with a receiving groove for receiving the bus bar, the receiving groove has a bottom surface and a side wall extending around the bottom surface, wherein the side wall includes a first side wall and a second side wall arranged opposite to each other;

[0005] An undercut structure, which is disposed on the first side wall and is used to press against the busbar;

[0006] A horizontal limit column is arranged on the bottom surface and close to one side of the second side wall. The bus is provided with a guide hole corresponding to the horizontal limit column. The bus is clamped on the horizontal limit column through the guide hole.

[0007] Furthermore, in one embodiment, a plurality of the horizontal limit columns are provided, and the plurality of the horizontal limit columns are all provided on the bottom surface and close to the side of the second side wall. The bus is provided with a plurality of the guide holes corresponding to the plurality of the horizontal limit columns, and each of the horizontal limit columns is correspondingly inserted into each of the guide holes, and the outer side wall of the horizontal limit column is pressed against the inner side wall of the guide hole.

[0008] Furthermore, in one embodiment, a plurality of the inverted structures are provided, and the plurality of inverted structures are arranged side by side on the first side wall and pressed against the bus bar.

[0009] Furthermore, in one embodiment, the horizontal limiting column is elastic, and a hole diameter of the horizontal limiting column is larger than a width of the guide hole, so as to fasten the guide hole.

[0010] Furthermore, in one embodiment, the horizontal limiting column is elastic, and a spiral protrusion is provided on the outer surface of the horizontal limiting column, and the spiral protrusion is pressed against the inner wall of the guide hole.

[0011] Furthermore, in one embodiment, the undercut structure is a semi-cylindrical protrusion or a wedge-shaped protrusion.

[0012] Furthermore, in one embodiment, one end of the guide hole facing the bottom surface is chamfered.

[0013] Furthermore, in one embodiment, the bottom surface is provided with an avoidance hole, and the power connection portion of the busbar is exposed from the corresponding avoidance hole, and the power connection portion is used for electrically connecting the battery cell.

[0014] The utility model also provides a CCS component, which comprises a bus bar and the bracket, wherein the bus bar is detachably arranged on the bracket.

[0015] The utility model also provides a battery pack, which includes the CCS component.

[0016] In the technical solution provided by the utility model, a receiving groove for accommodating the bus is provided on the bracket body, and an undercut structure is provided on the first side wall of the receiving groove, a horizontal limit column is provided on the bottom surface of the receiving groove and on the side close to the second side wall, and a guide hole is provided at the position of the bus corresponding to the horizontal limit column, so that when the bus is installed in the receiving groove, the undercut structure and the horizontal limit column can fix the bus from multiple directions at the same time, thereby improving the stability of the bus, and the bracket body, the undercut structure and the horizontal limit column are an integrally formed structure, so that the bracket can fix the bus by using its own structure, avoiding the use of hot riveting columns to fix the bus, thereby avoiding the hot melt process, shortening the production time, thereby shortening the production cycle, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] One or more embodiments are exemplarily described by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and the figures in the drawings do not constitute proportional limitations unless otherwise stated.

[0018] Figure 1 It is a structural exploded view of the busbar and the bracket of the utility model;

[0019] Figure 2 The utility model is provided for the installation of the structure of the busbar and the bracket Figure 1 ;

[0020] Figure 3 The utility model is provided for the installation of the structure of the busbar and the bracket Figure 2 ;

[0021] Figure 4 The utility model is provided for the installation of the structure of the busbar and the bracket Figure 3 ;

[0022] Figure 5 The utility model is provided for the installation of the structure of the busbar and the bracket Figure 4 ;

[0023] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0024] Figure 7 for Figure 5 A partial enlarged view of point B in the middle;

[0025] Figure 8 for Figure 6 A partial enlarged view of point C in the middle;

[0026] Fig. 9 for Figure 6 A partial enlarged view of point D in the middle;

[0027] Fig.10 The utility model is provided for the installation of the structure of the busbar and the bracket Figure 5 .

[0028] Among them, 100, bracket; 10, bracket body; 20, receiving groove; 201, bottom surface; 202, first side wall; 203, second side wall; 204, avoidance hole; 30, undercut structure; 40, horizontal limit column; 200, bus bar; 211, guide hole; 212, chamfer; 300, CCS component; DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the utility model, the utility model is described in more detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that when an element is described as "fixed to" another element, it can be directly on another element, or there can be one or more centered elements therebetween. When an element is described as "connected" to another element, it can be directly connected to another element, or there can be one or more centered elements therebetween. The terms "vertical", "horizontal", "left", "right", "inside", "outside" and similar expressions used in this specification are only for illustrative purposes. In the description of the utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating relative importance or implicitly indicating the number of technical features indicated. Therefore, unless otherwise specified, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; the meaning of "multiple" is two or more. The term "include" and any variation thereof means non-exclusive inclusion, and one or more other features, integers, steps, operations, units, components and / or combinations thereof may be present or added.

[0030] In addition, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection between two components. All technical and scientific terms used in this specification have the same meaning as those generally understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not used to limit the present utility model. The term "and / or" used in this specification includes any and all combinations of one or more related listed items.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] like Figure 1 As shown, the utility model relates to a battery pack (not shown in the figure), which transmits power energy to the entire vehicle through a high-voltage connector. The battery pack includes a CCS assembly 300 and a plurality of battery cells (not shown in the figure), and each battery cell is electrically connected through the power connection part of the CCS assembly 300 exposed by each avoidance hole 204.

[0033] like Figure 1-Figure 3As shown, the utility model also relates to a CCS component 300, which transmits the voltage information, current information and temperature information collected from the battery cell to the battery management system (BMS) to monitor the use status of the battery. The CCS component 300 includes a bracket 100, a bus 200 and a flexible circuit board, the flexible circuit board is integrated on the bus 200, the bus 200 is fixed on the bracket 100, and the bracket 100 is provided with an avoidance hole 204, the power connection part of the bus 200 is exposed through the avoidance hole 204 and is electrically connected to the battery cell, so the CCS component 300 can collect the voltage, current and temperature information of the battery cell in real time, and feed the collected information back to the battery management system (BMS) through the connector.

[0034] Figure 4-Figure 10 The utility model further relates to a bracket 100. The bracket 100 is used to fix the busbar 200.

[0035] The bracket 100 includes a bracket body 10, an inverted structure 30 and a horizontal limit column 40. The bracket body 10 is used to support and fix the bus 200. The bracket body 10 is provided with a receiving groove 20 for accommodating the bus 200. The receiving groove 20 has a bottom surface 201 and a side wall extending around the bottom surface 201, wherein the side wall includes two oppositely arranged first side walls 202 and a second side wall 203. The inverted structure 30 is arranged on the first side wall 202 and faces the second side wall 203. There is a gap between the inverted structure 30 and the bottom surface 201. The bus 200 is stuck in the gap, and the inverted structure 30 is pressed against the bus 200. Through the cooperation of the bottom surface 201, the first side wall 202 and the inverted structure 30, the movement of the bus 200 in the Z-axis direction (up and down directions) is limited.

[0036] The undercut structure 30 is semi-cylindrical or wedge-shaped, which makes it easier to insert or pull out the busbar 200. Figure 4 and Figure 8 As shown, this embodiment is preferably semi-cylindrical; the busbar 200 can be an aluminum busbar or a copper busbar.

[0037] The horizontal limit post 40 is vertically arranged on the bottom surface 201, and a guide hole 211 is arranged at the position of the bus 200 corresponding to the horizontal limit post 40, and the horizontal limit post 40 is close to the side of the second side wall 203, so that when the bus 200 is installed, the guide hole 211 and the horizontal limit post 40 can be more easily aligned to complete the installation and fixation of the bus 200. The horizontal limit post 40 is used to limit and fix the front, rear, left and right directions of the bus 200. Specifically, a chamfer 212 is arranged at one end of the guide hole 211 facing the bottom surface 201, and the chamfer 212 plays a guiding role when the chamfer 212 is installed, and the chamfer 212 can be a right angle.

[0038] like Figure 2As shown, during installation, the bus 200 is inserted obliquely to the bottom of the inverted structure 30 (i.e., the gap between the bottom surface 201 and the inverted structure 30), and then pressed downward so that the horizontal limit column 40 is gradually inserted into the guide hole 211 until it is completely pressed into place. The cooperation between the horizontal limit column 40 and the guide hole 211 limits the forward, rearward, left and right movement range of the bus 200 within the range of the guide hole 211, and the side wall of the horizontal limit column 40 is pressed against the inner wall of the guide hole 211, so that the horizontal limit column 40 clamps the bus 200, which not only prevents the bus 200 from detaching from the horizontal limit column 40 after installation, but also limits and fixes the bus 200 in the forward, rearward, left and right directions. Therefore, with the cooperation of the inverted structure 30, the horizontal limit column 40 and the guide hole 211, the bracket 100 can be limited and fixed at multiple angles from the upper direction, the lower direction, the front direction, the rear direction, the left direction and the right direction, thereby improving the stability of the bus 200. In the present embodiment, the bracket body 10, the inverted structure 30 and the horizontal limit column 40 are an integrally formed structure. Therefore, the bracket 100 of the utility model uses its own structure to limit and fix the bus 200, which can eliminate the existing fixing method by hot riveting columns, reduce the hot melt process, shorten the production time, and thus shorten the production cycle and save costs.

[0039] In one embodiment, if Fig.10 As shown, when the size of the bus 200 is larger, the fixing strength can be increased by increasing the number of horizontal limit columns 40. A plurality of horizontal limit columns 40 are provided, and a plurality of guide holes 211 are opened at the positions of the bus 200 corresponding to the plurality of horizontal limit columns 40. During installation, each horizontal limit column 40 is correspondingly inserted into each guide hole 211, and the outer wall of the horizontal limit column 40 is pressed against the inner wall of the guide hole 211, so that the horizontal limit column 40 clamps the bus 200. And multiple horizontal limit columns 40 are all vertically arranged on the bottom surface 201, and are all close to the second side wall 203 of the groove, so that the guide hole 211 is as far away from the first side wall 202 as possible. During installation, the bus 200 is inserted obliquely under the inverted structure 30. After being inserted, the bus 200 is subject to certain restrictions in the Z-axis direction. Therefore, the closer the horizontal limit column 40 is to the first side wall 202, the easier it is to block the bus 200 from being inserted under the inverted structure 30. Therefore, the farther the horizontal limit column 40 is from the first side wall 202, the easier it is for the guide hole 211 to align with the horizontal limit column 40, making the installation more convenient and quick, saving installation time.

[0040] In this embodiment, the number of the horizontal limit posts 40 can be 2, 3, 4, 5, 6, 7 or 8. It should be noted that the number of the horizontal limit posts 40 is not limited to 1, 2, 3, 4, 5, 6, 7 or 8. The specific number can be increased or decreased according to actual needs. The shape of the horizontal limit posts 40 can be circular, rectangular or square. Figure 2 As shown, the number of the busbars 200 is preferably two, and the shape of the horizontal limiting column 40 is circular.

[0041] In one embodiment, when the busbar 200 is large in size, the fixing strength can be increased by increasing the number of undercut structures 30. A plurality of undercut structures 30 are arranged on the first side wall 202 in a side-by-side distribution manner. When the busbar 200 is obliquely inserted under the undercut structures 30, the undercut structures 30 exert a downward force on the busbar 200 to press against the busbar 200. Alternatively, the undercut structures 30 can be pressed against the busbar 200 by lengthening their length, which can also enhance the fixing strength.

[0042] In this embodiment, the number of the undercut structures 30 can be 2, 3, 4, 5, 6, 7 or 8. It should be noted that the number of the undercut structures 30 is not limited to 1, 2, 3, 4, 5, 6, 7 or 8, and the specific number can be increased or decreased according to actual needs. Figure 2 As shown, the number of the busbars 200 is preferably two, and the shape of the horizontal limiting column 40 is semi-cylindrical.

[0043] In one embodiment, the material of the horizontal limit column 40 is a plastic material such as PC, PVC or PCT, and the plastic material has elasticity, so that the formed bracket 100 also has elasticity, so the horizontal limit column 40 also has elasticity. Therefore, the aperture R of the horizontal limit column 40 is set to be larger than the width W of the guide hole 211, so that the horizontal limit column 40 can tighten the guide hole 211, thereby tightening the bus 200; during installation, the end of the guide hole 211 facing the bottom surface 201 A chamfer 212 is provided to allow the guide hole 211 to be inserted into the horizontal guide column. As the pressure is pressed downward, the horizontal limit column 40 is subjected to the extrusion pressure given by the guide hole 211. At the same time, due to its own elasticity, the horizontal limit column 40 also gives a reaction force to the guide hole 211 while retracting, so that the guide hole 211 can be completely inserted into the horizontal limit column 40 when retracting. The reaction force enables the outer wall of the horizontal limit column 40 to better press against the inner wall of the guide hole 211, thereby improving the stability of the bus 200.

[0044] Specifically, the guide hole 211 may be a waist-shaped hole.

[0045] Furthermore, a spiral protrusion (not shown) may be provided on the outer surface of the horizontal limit column 40, and the spiral protrusion refers to a protrusion that spirally rises from the bottom of the horizontal limit column 40 to the top of the horizontal limit column 40 around the outer surface of the horizontal limit column 40. The spiral protrusion allows a gap to exist between two circles of protrusions, which can reduce the reaction force when pressing down. Therefore, the provision of the spiral protrusion can reduce the force of pressing down on the bus 200, and at the same time, the horizontal limit column 40 can also press against the inner wall of the guide hole 211 because of its elasticity.

[0046] In one embodiment, a avoidance hole 204 is provided on the bottom surface 201, and a power connection portion is provided at a position of the bus 200 corresponding to the avoidance hole 204. Therefore, after installation, the power connection portion of the bus 200 is exposed from the corresponding avoidance hole 204, so that the battery cell can be electrically connected to the power connection portion. Therefore, the CCS component 300 can collect information on the voltage, current and temperature of the battery cell in real time, and feed the collected information back to the battery management system (BMS) through the connector.

[0047] Compared with the prior art, the utility model discloses a bracket 100, a CCS assembly 300 and a battery pack, by arranging an inverted structure 30 and a horizontal limit column 40 on the bracket body 10, and arranging a guide hole 211 at the position of the bus 200 corresponding to the horizontal limit column 40, so that when the bus 200 is installed in the accommodating groove 20, the inverted structure 30 and the horizontal limit column 40 fix the bus 200 from multiple directions at the same time, thereby improving the stability of the bus 200, and the bracket body 10, the inverted structure 30 and the horizontal limit column 40 are an integrally formed structure, so that the bracket 100 can fix the bus 200 by using its own structure, avoiding the use of hot riveting columns to fix the bus 200, thereby avoiding the hot melt process, shortening the production time, thereby shortening the production cycle, and saving production costs.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes in different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bracket for fixing a busbar, characterized in that: The support comprises: A bracket body, wherein the bracket body is provided with a receiving groove for receiving the busbar, the receiving groove having a bottom surface and side walls extending around the bottom surface, wherein the side walls include a first side wall and a second side wall arranged opposite to each other; An undercut structure, which is disposed on the first side wall and is used to press against the busbar; A horizontal limit column is arranged on the bottom surface and close to one side of the second side wall. The bus is provided with a guide hole corresponding to the horizontal limit column. The bus is clamped on the horizontal limit column through the guide hole.

2. The bracket according to claim 1, characterized in that: A plurality of the horizontal limit columns are provided, and the plurality of the horizontal limit columns are all provided on the bottom surface and close to the side of the second side wall. The bus is provided with a plurality of the guide holes corresponding to the plurality of the horizontal limit columns, and each of the horizontal limit columns is correspondingly inserted into each of the guide holes, and the outer side wall of the horizontal limit column is pressed against the inner side wall of the guide hole.

3. The bracket according to claim 1, characterized in that: A plurality of the inverted structures are provided, and the plurality of the inverted structures are arranged side by side on the first side wall and pressed against the bus bar.

4. The bracket according to claim 1, characterized in that: The horizontal limiting column is elastic, and the hole diameter of the horizontal limiting column is larger than the width of the guide hole, and is used to fasten the guide hole.

5. The bracket according to claim 4, characterized in that: The horizontal limiting column is elastic, and a spiral protrusion is provided on the outer surface of the horizontal limiting column, and the spiral protrusion is pressed against the inner side wall of the guide hole.

6. The bracket according to claim 1, characterized in that: The undercut structure is a semi-cylindrical protrusion or a wedge-shaped protrusion.

7. The bracket according to claim 1, characterized in that: One end of the guide hole facing the bottom surface is chamfered.

8. The bracket according to claim 1, characterized in that: The bottom surface is provided with an escape hole, and the power connection part of the busbar is exposed from the corresponding escape hole, and the power connection part is used for electrically connecting the battery core.

9. A CCS component, characterized in that: The CCS assembly comprises a bus and a bracket according to any one of claims 1 to 8, and the bus is detachably arranged on the bracket.

10. A battery pack, characterized in that: The battery pack includes the CCS assembly according to claim 9.

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