CN216529238U - Collection structure and battery module - Google Patents

Abstract

The utility model relates to the technical field of information acquisition of battery modules, and discloses an acquisition structure and a battery module. The collecting structure comprises an insulating support, a bus bar, a flexible circuit board and a collecting connector are sequentially arranged on the insulating support, the bus bar can be detachably arranged on the insulating support, the flexible circuit board can be detachably arranged on the insulating support and is electrically connected with the bus bar, a fuse is integrated in the flexible circuit board, and the collecting connector is electrically connected with the flexible circuit board through a golden finger connector. According to the acquisition structure disclosed by the utility model, the flexible circuit board and the golden finger connector are adopted to replace a plurality of existing wire harnesses and connectors respectively, so that the installation is convenient, the volume of the golden finger connector for connecting the acquisition connector and the flexible circuit board is smaller due to the higher integration degree of the flexible circuit board, the installation space of the acquisition structure is reduced, the utilization rate of the arrangement space of the acquisition structure is improved, and the safety of the acquisition structure is improved by the fuse integrated in the flexible circuit board.

Description

A collection structure and battery module

technical field

The utility model relates to the technical field of information collection of battery modules, in particular to a collection structure and a battery module.

Background technique

The acquisition structure of the existing battery module is generally assembled by multiple wire harnesses and larger connectors. This acquisition structure not only has a complex structure, occupies a large space, has a slow assembly speed, and has high labor costs, but also cannot integrate a fuse in the wire harness. The security of the acquisition structure is reduced.

Utility model content

Based on the above, the purpose of the present invention is to provide a collection structure and a battery module, which solve the problems of complex structure, large space occupation, slow assembly speed, high labor cost and low safety in the existing collection structure. .

For reaching the above-mentioned purpose, the utility model adopts the following technical solutions:

A collection structure includes an insulating support, a busbar, a flexible circuit board and a collecting connector are arranged on the insulating support in sequence, the busbar is detachably arranged on the insulating support, and the flexible circuit board is detachably arranged On the insulating support and electrically connected with the bus bar, a fuse is integrated in the flexible circuit board, and the collecting connector is electrically connected with the flexible circuit board through a gold finger connector.

As a preferred solution of the collection structure, the insulating support is provided with a mounting hole, and the bus bar is clamped in the mounting hole.

As a preferred solution of the collection structure, a heat riveting post is provided on the insulating support, and the flexible circuit board is heat riveted on the heat riveting post.

As a preferred solution of the collection structure, both the gold finger connector and the collection connector are welded and electrically connected to the printed circuit board, and the gold finger connector is electrically connected to the flexible circuit board.

As a preferred solution of the collection structure, a reinforcing plate is fixedly arranged on the side of the flexible circuit board facing away from the collecting connector, and the reinforcing plate is connected with the gold finger connector by plug connection.

As a preferred solution of the collection structure, the flexible circuit board includes a circuit board body abutting against the insulating support and at least two first connecting arms electrically connected to the circuit board body, and the circuit board body includes The first plate body, the second plate body and the third plate body are connected in sequence, the second plate body is protruding from the first plate body and the third plate body, and the first plate body is far away from the The first connecting arm is provided on the first side of the second plate body and on the second side of the third plate body away from the second plate body, and the first connecting arm is connected to the confluence. The rows are electrically connected by copper foil.

As a preferred solution of the collection structure, the first side is provided with at least two first connecting arms distributed at intervals, and the second side is provided with at least two first connecting arms distributed at intervals connecting arm.

As a preferred solution of the collection structure, the flexible circuit board further includes a second connecting arm electrically connected to the circuit board body, and the insulating support is provided with an escape hole for the second connecting arm to penetrate, so The end of the second connecting arm is provided with a temperature sensor for detecting the temperature of the cell.

As a preferred solution of the collection structure, the bus bar is provided with a plurality of first connection holes, and each of the first connection holes corresponds to a pole of the cell.

A battery module includes a plurality of battery cells, a printed circuit board, and the collection structure described in any of the above solutions, each of the battery cells is electrically connected to the busbar, and the printed circuit board is provided with There are the golden finger connector and the flexible circuit board, and the golden finger connector is plugged on the collecting connector.

The beneficial effects of the utility model are as follows: the collection structure disclosed by the utility model adopts the flexible circuit board and the gold finger connector to replace the existing multiple wire harnesses and connectors respectively, which is convenient for installation, and the integration degree of the flexible circuit board is high. , making the volume of the gold finger connector connecting the acquisition connector and the flexible circuit board smaller, reducing the installation space of the acquisition structure, improving the utilization rate of the layout space of the acquisition structure, and improving the fuse integrated in the flexible circuit board. Security of the acquisition structure.

The battery module disclosed in the present invention has the characteristics of small occupied space and high safety because it includes the aforementioned collection structure.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments of the present invention. Obviously, the accompanying drawings in the following description are only of the present invention. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to the contents of the embodiments of the present invention and these drawings without creative efforts.

1 is a schematic diagram of a collection structure provided by a specific embodiment of the present invention;

2 is an exploded view of a collection structure provided by a specific embodiment of the present invention in one direction;

3 is an exploded view of the collection structure provided by the specific embodiment of the present invention in another direction;

FIG. 4 is a schematic diagram of some internal wires and fuses of the flexible circuit board of the collection structure provided by the specific embodiment of the present invention.

In the picture:

1. Insulation bracket; 101, Mounting hole; 102, Third connection hole; 103, Avoidance hole; 11, Hot riveting column; 2. Bus bar; 201, First connection hole; 202, Second connection hole; circuit board; 301, fuse; 302, wire; 31, circuit board body; 311, first board body; 312, second board body; 313, third board body; 32, first connecting arm; 33, second connection Arm; 4. Acquisition connector; 5. Temperature sensor.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed to indicate or imply relative importance. Therein, the terms "first position" and "second position" are two different positions.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. It can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

This embodiment provides a collection structure for a battery module, as shown in FIG. 1 to FIG. 4 , including an insulating support 1, and the insulating support 1 is provided with a bus bar 2, a flexible circuit board 3 and a collection connector 4 in sequence, The bus bar 2 is detachably arranged on the insulating support 1, the flexible circuit board 3 is detachably arranged on the insulating support 1 and is electrically connected to the bus bar 2, the flexible circuit board 3 is integrated with a fuse 301, and the collection connector 4 is connected by a gold finger The device is electrically connected to the flexible circuit board 3 .

It should be noted that, as shown in FIG. 4 , the flexible circuit board 3 of this embodiment is provided with a plurality of wires 302 , each wire 302 is provided with a fuse 301 , and the fuse 301 improves the safety of the flexible circuit board 3 . The gold finger connector and the collecting connector 4 in this embodiment are both welded and electrically connected to the printed circuit board, and the gold finger connector is electrically connected to the flexible circuit board 3 .

The flexible circuit board 3 and the gold finger connector of the acquisition structure in this embodiment replace the multiple wire harnesses and connectors in the prior art respectively, which is convenient for installation. Due to the high degree of integration of the flexible circuit board 3, the connection acquisition connection is made possible. The size of the gold finger connector of the device 4 and the flexible circuit board 3 is smaller, which reduces the installation space of the acquisition structure and improves the utilization rate of the layout space of the acquisition structure. The fuse 301 integrated in the flexible circuit board 3 improves the acquisition structural safety.

As shown in FIG. 1 and FIG. 2 , the insulating support 1 of this embodiment is provided with thermal riveting posts 11 , and the flexible circuit board 3 is thermally riveted on the thermal riveting posts 11 . Specifically, the hot riveting post 11 is first heated to deform or even melt, and then the flexible circuit board 3 is riveted on the hot riveting post 11 , so that the flexible circuit board 3 is fixed on the insulating support 1 .

In this embodiment, a reinforcing plate (not shown in the figure) is fixedly arranged on the side of the flexible circuit board 3 facing away from the collecting connector 4, and the reinforcing plate is connected with the gold finger connector. The additional reinforcing plate solves the problem of flexibility. The high flexibility of the circuit board 3 improves the structural strength of the flexible circuit board 3, realizes that the flexible circuit board 3 is electrically connected to the acquisition connector 4 through the gold finger connector, and facilitates the overall assembly of the acquisition structure.

As shown in FIGS. 2 and 3 , the flexible circuit board 3 of this embodiment includes a circuit board body 31 abutting against the insulating support 1 and five first connecting arms 32 electrically connected to the circuit board body 31 , as shown in FIG. 2 . As shown, the circuit board body 31 includes a first board body 311, a second board body 312 and a third board body 313 which are connected in sequence. A first connecting arm 32 is provided on the first side of the plate body 311 away from the second plate body 312 and on the second side of the third plate body 313 away from the second plate body 312. The first connecting arm 32 is connected to the bus bar. 2 is electrically connected through copper foil, so that the flexible circuit board 3 is electrically connected with the bus bar 2 . The above structure of the flexible circuit board 3, on the basis of ensuring the electrical connection between the flexible circuit board 3 and the gold finger connector, reduces the space occupied by the flexible circuit board 3 to the greatest extent, is conducive to the miniaturized distribution of the acquisition structure, and increases the battery The energy density of the module.

Specifically, the first plate body 311 is provided with three first connecting arms 32 distributed at intervals, and the second plate body 312 is provided with two first connecting arms 32 distributed at intervals. Wherein, the two first connecting arms 32 on the first side of the first plate body 311 are S-shaped connecting arms, the other first connecting arm 32 is a trapezoidal connecting arm, and the second connecting arms 32 on the second side of the second plate body 312 are S-shaped connecting arms. The two first connecting arms 32 are both S-shaped connecting arms. Since the temperature of the flexible circuit board 3 will rise and expand during use, due to the increase in its own volume, the gap between the first connecting arms 32 , the S-shaped connecting arm and the trapezoidal connecting arm can be used for the flexible circuit board 3 . The thermal expansion provides a certain expansion space, thereby reducing the probability that the first connecting arm 32 is torn and the flexible circuit board 3 is damaged.

As shown in FIG. 2 and FIG. 3 , the flexible circuit board 3 of this embodiment further includes a second connecting arm 33 that is electrically connected to the circuit board body 31 . As shown in FIG. 2 , the insulating support 1 is provided with a second connecting arm for 33 through the escape hole 103, the end of the second connecting arm 33 is provided with a temperature sensor 5 for detecting the temperature of the cell. In this embodiment, the second connecting arm 33 , the first connecting arm 32 and the circuit board body 31 are integrally formed into the flexible circuit board 3 .

As shown in FIG. 2 and FIG. 3 , the insulating support 1 of this embodiment is provided with a mounting hole 101 , and the bus bar 2 is clamped in the mounting hole 101 . Specifically, the insulating support 1 is provided with a snap protrusion (not shown in the figure), and the snap protrusion can limit the bus bar 2 in the installation hole 101 , so that the bus bar 2 is initially positioned on the insulating support 1 .

The number of the bus bars 2 in this embodiment is two. As shown in FIG. 2 and FIG. 3 , each bus bar 2 is provided with four first connection holes 201 , and the number of the first connection holes 201 is related to the electrical The number of poles of the core is the same, and each first connection hole 201 corresponds to a pole of the cell, and the pole penetrates the first connection hole 201 and is welded on the bus bar 2, so that the cell is electrically connected to the bus bar 2 . Of course, in other embodiments of the present invention, the number of the bus bars 2 of the collection structure and the number of the first connection holes 201 on each bus bar 2 are not limited to the limitations of this embodiment, and may also be Other numbers can be set according to actual needs.

As shown in FIG. 2 and FIG. 3 , one of the bus bars 2 is provided with two second connection holes 202 , the insulating support 1 is provided with two third connection holes 102 , and the fasteners (not shown in the figures) pass through The second connection hole 202 and the third connection hole 102 are used to firmly connect the bus bar 2 and the insulating support 1 together. The fastener in this embodiment is a bolt, the second connection hole 202 and the third connection hole 102 are both threaded holes, and the locking end of the bolt penetrates the second connection hole 202 and extends into the third connection hole 102, so that the bus bar 2 is fixedly connected to the insulating support 1.

This embodiment also provides a battery module, including a number of cells (not shown in the figure), a printed circuit board (not shown in the figure), and the collection structure described in the above technical solution, each cell is It is electrically connected to the bus bar 2 , the printed circuit board is provided with a gold finger connector and a flexible circuit board 3 , and the gold finger connector is inserted into the reinforcing plate of the flexible circuit board 3 .

The battery module of this embodiment has the characteristics of small occupied space and high safety because it includes the aforementioned collection structure.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions can be made to those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present utility model. Rather, the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A collection structure, characterized in that it comprises an insulating support (1), and a busbar (2), a flexible circuit board (3) and a collection connector (4) are arranged on the insulating support (1) in sequence, so that the The bus bar (2) is detachably arranged on the insulating support (1), and the flexible circuit board (3) is detachably arranged on the insulating support (1) and is electrically connected to the bus bar (2) A fuse (301) is integrated in the flexible circuit board (3), and the collecting connector (4) is electrically connected to the flexible circuit board (3) through a gold finger connector. 2 . The collection structure according to claim 1 , wherein a mounting hole ( 101 ) is provided on the insulating support ( 1 ), and the bus bar ( 2 ) is clamped in the mounting hole ( 101 ). 3 . . 3 . The collection structure according to claim 1 , wherein the insulating support ( 1 ) is provided with hot riveting posts ( 11 ), and the flexible circuit board ( 3 ) is thermally riveted on the hot riveting posts ( 3 . 11) on. 4 . The collection structure according to claim 1 , wherein the gold finger connector and the collection connector ( 4 ) are both welded and electrically connected to a printed circuit board, and the gold finger connector is connected to a printed circuit board. 5 . The flexible circuit board (3) is electrically connected. 5. The collection structure according to claim 1, characterized in that a reinforcing plate is fixedly arranged on the side of the flexible circuit board (3) facing away from the collecting connector (4), and the reinforcing plate is connected to the The gold finger connector is plugged and connected. 6 . The collection structure according to claim 1 , wherein the flexible circuit board ( 3 ) comprises a circuit board body ( 31 ) abutting against the insulating support ( 1 ) and a circuit board body ( 31) At least two first connecting arms (32) electrically connected, the circuit board body (31) comprising a first board body (311), a second board body (312) and a third board body (313) which are connected in sequence ), the second plate body (312) is protruding from the first plate body (311) and the third plate body (313), and the first plate body (311) is away from the second plate body The first connecting arm (32) is provided on the first side edge of the third plate body (312) and on the second side edge of the third plate body (313) away from the second plate body (312). The first connecting arm (32) is electrically connected to the bus bar (2) through copper foil. 7. The collection structure according to claim 6, characterized in that, at least two first connecting arms (32) distributed at intervals are provided on the first side, and the second side is provided with At least two of the first connecting arms (32) are spaced apart. 8 . The collection structure according to claim 6 , wherein the flexible circuit board ( 3 ) further comprises a second connecting arm ( 33 ) electrically connected to the circuit board body ( 31 ), and the insulating support (1) There is an escape hole (103) through which the second connecting arm (33) penetrates, and the end of the second connecting arm (33) is provided with a temperature sensor (5) for detecting the temperature of the cell. 9 . The collection structure according to claim 1 , wherein a plurality of first connection holes ( 201 ) are provided on the bus bar ( 2 ), and each of the first connection holes ( 201 ) corresponds to an electrical A pole of the core. 10. A battery module, characterized in that it comprises a plurality of cells, a printed circuit board and the collection structure according to any one of claims 1-9, each of the cells is connected to the busbar (2) Electrical connection, the printed circuit board is provided with the gold finger connector and the flexible circuit board (3), and the gold finger connector is plugged on the collection connector (4).

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