TWM555074U - Connector assembly - Google Patents

Abstract

The present invention provides a connection assembly for electrically connecting between a battery pack and a battery management system. The connection assembly includes a circuit board, a plurality of terminals, a plurality of wires, and a first connector. The terminals are connected to one end of the circuit board to be electrically connected to the plurality of battery cells in a battery pack. The wire is connected to the other end of the circuit board and electrically connected to the terminal by the circuit board. The first connector is coupled to the other end of the plurality of wires to interface with the battery management system.

Description

Connection component

The present invention relates to a connection assembly, and more particularly to a connection assembly that makes the connection between the battery pack and the battery management system simple and convenient.

As a new energy vehicle, electric vehicles have become the development direction of the automobile industry. Among them, the battery pack is an important energy source for electric vehicles, and monitoring the performance of the battery pack is particularly important. The electric vehicle is equipped with a battery management system for monitoring the safe operation of the battery. It is mainly used for the battery core voltage, battery core temperature, energy balance, thermal management, total battery pack voltage, battery pack total current, information analysis, and voice. Alarms and the like are monitored; accordingly, information related to each function needs to be collected, thereby requiring a large number of connectors and transmission lines to be used for information acquisition and transmission, thereby causing all space in the battery pack to be transmitted by the transmission line, etc. occupy. Therefore, not only the volume of the battery pack is increased, the weight is increased, the wiring is troublesome, the safety performance is low, and the energy consumption and cost are also increased accordingly.

In view of this, it is indeed necessary to further improve the conventional connection design to solve the above technical problems.

The purpose of this creation is to provide a connection assembly that makes the connection between the battery pack and the battery management system simple and convenient.

In order to achieve the above object, the present invention provides a connection component for electrically connecting between a battery pack and a battery management system, the connection component comprising: a circuit board; a plurality of terminals connected to one end of the circuit board to respectively The plurality of battery cells in the battery pack are electrically connected; the plurality of wires are connected to the other end of the circuit board, and are electrically connected to the terminal through the circuit board; the first connector is connected to the other end of the plurality of wires to be The battery management system is connected.

As a further improvement of the present invention, the circuit board is provided with fixing holes for fixing terminals, each terminal has a fixing portion fixed on the circuit board, a contact portion extending from the circuit board, and a connecting fixing portion and a contact portion. a connecting portion, the fixing portion and the contact portion are located in different planes.

As a further improvement of the present invention, the fixing portion of the terminal has a base portion abutting on the circuit board and a fixing leg bent and extended from both sides of the base portion, and the fixing legs on each side of the base portion are disposed in a pair of spaced apart harpoon type.

As a further improvement of the present invention, the terminal further has a soldering portion extending from the fixing portion away from one end of the contact portion, and the circuit board is correspondingly provided with a soldering hole.

As a further improvement of the present invention, the wire is collectively connected to the other end of the circuit board, and the connection assembly further includes a protection block injection molded at the junction of the wire and the circuit board.

As a further improvement of the present invention, the connection assembly further includes a thermal sensor disposed on the circuit board.

In order to achieve the above object, the present invention also provides a connection component for electrically connecting between a battery pack and a battery management system, the connection component comprising a first connection component for connecting to a positive terminal of the battery pack, a first connector connected to the negative terminal of the battery pack, a first connector for connecting the first connection component and the second connection component to the battery management system; wherein the first connection component and the second connection The components respectively include: a circuit board; a plurality of terminals connected to one end of the circuit board to be electrically connected to the plurality of battery cells in the battery pack; the plurality of wires, one end of the wire is connected to the other end of the circuit board, and the circuit board is The terminal is electrically connected to the terminal, and the other end is connected to the first connector.

As a further improvement of the present invention, each of the terminals has a solder portion soldered to the circuit board and a contact portion extending out of the circuit board, the contact portion being in a sinker design.

As a further improvement of the present invention, the wires are collectively connected to the other end of the circuit board, and the first connecting component and the second connecting component respectively further comprise a protective block injection molded at a connection between the wire and the circuit board.

As a further improvement of the present invention, the first connection component and the second connection component further comprise thermal sensors respectively disposed on the circuit board.

The present invention collects relevant monitoring information of each battery cell in the battery pack by using a circuit board and a terminal, and transmits information through the circuit board, so that the wires can be collectively connected to one end of the circuit board, and need not be connected to one by one. Each battery core is more convenient to connect and easy to handle; in addition, the other end of the wire is uniformly connected to the first connector, and the first connector is connected to the battery management system, thereby further setting all the wires. The same length, and because both ends of the wire are connected to the close position, the wire can be collectively processed as a whole, for example, a flat wire or a wire harness, etc., so that the wire is disorderly, the volume is large, the problem is difficult to distinguish, and the safety is avoided. Hidden dangers.

Referring to the first and second figures, a preferred embodiment of the creative connection assembly 100 is shown. The connection component 100 is electrically connected between the battery pack and a battery management system to collect information such as voltage or temperature on the battery pack.

The connecting component 100 includes a circuit board 1, a plurality of terminals 2 connected to one end of the circuit board 1 to be electrically connected to a plurality of battery cells in a battery pack, and a plurality of wires 3 and a first wire connected to the other end of the circuit board 1. Connector 4.

The wire 3 is electrically connected to the terminal 2 by a circuit board 1; the first connector 4 is connected to the other end of the plurality of wires 3 to be in contact with the battery management system. That is, the present invention mainly uses the circuit board 1 and the terminal 2 to collect the relevant monitoring information of the battery cells in the battery pack, and transmits information through the circuit board 1 so that the wires 3 can be collectively connected to one end of the circuit board 1 without one The roots are respectively connected to each of the battery cells, so that the connection is convenient and easy to handle; further, the first connector 4 is uniformly connected to the other end of the wire 3, and the battery is connected by the first connector 4 The management system is connected, whereby all the wires 3 can be further set to the same length, and since both ends of the wire 3 are connected to the close position, the wires 3 can be collectively processed as a whole, and a flat wire or a wire harness can be used, and further, There are no problems with messy wires, large volume, indistinguishable points, and security risks.

As another connection method, the applicant also considers using a flexible circuit board to electrically connect the battery core to the battery management system for collecting and transmitting related information. However, on the one hand, when a flexible circuit board is used, if the end of the flexible circuit board is directly connected to each battery cell in the battery pack, in order to accommodate the arrangement of the battery cells, the end of the flexible circuit board needs to be set wider and formed. The connecting portions respectively connected to each of the battery cells are well known, and the flexible circuit board is complicated to manufacture and expensive, and when the end is set to be wide, the forming is more difficult and the consumables are larger, resulting in high cost; on the other hand, When a line in a flexible circuit board fails, the entire flexible circuit board needs to be replaced, and the cost is higher.

Therefore, the applicant has selected the above technical solution by means of various considerations and experiments, that is, using the circuit board 1 for signal transfer transmission, which is convenient in connection, convenient in maintenance, and low in cost.

Specifically, the circuit board 1 in the present invention is provided with a fixing hole 11 for fixing the terminal 2. The fixing holes 11 are dispersedly disposed at one end of the circuit board 1 to facilitate connection of the terminals 2 to the battery cells. Preferably, a positioning hole 14 for positioning with the battery pack is further disposed on the circuit board 1 to enhance the fixing effect of the authoring connection assembly 100 and the battery pack.

Each of the terminals 2 has a fixing portion 21 fixed to the circuit board 1, a contact portion 22 extending from the circuit board 1, a connecting portion 23 connecting the fixing portion 21 and the contact portion 22, and a bent portion of the self-fixing portion 21 away from the contact portion 22. The extended welded portion 24 is folded. A soldering hole 12 is correspondingly disposed on the circuit board 1.

The fixing portion 21 and the contact portion 22 are located in different planes. Specifically, the contact portion 22 has a sinker design to facilitate connection or contact with the battery cell. The fixing portion 21 has a base portion 211 that abuts against the circuit board 1 and a fixing leg 212 that is bent and extended from both sides of the base portion 211. The fixing legs 212 on each side of the base portion 211 are disposed in a pair of spaced apart harpoon shapes, thereby being fixedly secured with the fixing holes 11.

The other end of the circuit board 1 is provided with a plurality of gold fingers 13 arranged in a concentrated manner. The wires 3 are also collectively arranged and welded one by one with the gold fingers 13. A wiring line (not shown) electrically connecting the terminal 2 and the gold finger 13 is disposed in the circuit board 1. Preferably, the connection assembly 100 further includes a protection block 5 injection-molded at the junction of the wire 3 and the circuit board 1, and the circuit board 1 is provided with an opening for firmly fixing the protection block 5 during injection molding. 16.

In addition, the connection assembly 100 further includes a thermal sensor 6 disposed on the circuit board 1. The detection end of the thermal sensor 6 extends out of the circuit board 1 to detect the battery pack.

In the above design of the present invention, a set of circuit board 1, terminal 2 and wire 3 can be connected to one end of the battery core to collect temperature information of the battery core and the like.

Further, referring to the third and fourth figures, and in combination with the first figure and the second figure, the present invention also provides another connection component, which is also used for electrically connecting to the battery pack and a battery management system. Between the connection assembly includes a first connection assembly 200 for connecting to the positive terminal of the battery pack, a second connection assembly 300 for connecting to the negative end of the battery pack, for connecting the first connection assembly 200 and the second connection assembly a first connector 4 connected to the battery management system; wherein the first connection assembly 200 and the second connection assembly 300 respectively include a circuit board 1, a terminal 2, a wire 3, and a thermal sensing device as described above. And the other end of the first connecting component 200 and the second connecting component 300 are connected to the first connector 4 and are connected to the battery by the first connector 4 The system is connected.

After the first connecting component 200 and the second connecting component 300 are disposed in cooperation with the first connector 4, the voltage, temperature, etc. of the positive and negative terminals of the battery pack can be respectively collected by the first connecting component 200 and the second connecting component 300. Various information, and the overall setup is simple and convenient.

Moreover, in the present creation, the lengths of the wires 3 connected to one end of the battery pack can be set to be the same, so that the wires 3 can be tied together by the cable tie to avoid disorder of the wire harness, rationally utilize the space, and reduce the overall volume of the battery pack.

As can be seen from the above, in the present invention, whether it is used only for the connection component 100 connected to one end of the battery pack, or the connection component connected to both ends of the battery pack, the information acquisition is more convenient, the connection is simple, convenient, and easy to manage. It effectively solves the problems of large volume, indistinguishable and various security risks in the prior art.

It is to be understood that the equivalent changes to the present invention made by the teachings of the present invention should be included in the scope of the present invention.

100‧‧‧Connecting components
200‧‧‧First connection assembly
300‧‧‧Second connection assembly
1‧‧‧ boards
11‧‧‧Fixed holes
12‧‧‧welding holes
13‧‧‧Gold Fingers
14‧‧‧Positioning holes
16‧‧‧Opening
2‧‧‧ terminals
21‧‧‧ Fixed Department
211‧‧‧ base
212‧‧‧Fixed feet
22‧‧‧Contacts
23‧‧‧Connecting Department
24‧‧‧Weld Department
3‧‧‧Wire
4‧‧‧First connector
5‧‧‧protection block
6‧‧‧ Thermal Sensor

The first figure is a perspective view of a preferred embodiment of the present invention. The second figure is a partially exploded view of the connection assembly shown in the first figure. The third figure is a perspective view of another preferred embodiment of the present creative connection assembly. The fourth figure is a partially exploded view of the connection assembly shown in the third figure.

100‧‧‧Connecting components

1‧‧‧ boards

2‧‧‧ terminals

3‧‧‧Wire

4‧‧‧First connector

5‧‧‧protection block

6‧‧‧ Thermal Sensor

Claims (10)

A connecting component is electrically connected between the battery pack and a battery management system, wherein the connecting component comprises: a circuit board; a plurality of terminals connected to one end of the circuit board to respectively correspond to a plurality of battery cells in a battery pack The plurality of wires are connected to the other end of the circuit board and electrically connected to the terminals by a circuit board; the first connector is connected to the other end of the plurality of wires to be in contact with the battery management system. The connection assembly of claim 1, wherein the circuit board is provided with a fixing hole for fixing the terminal, each terminal has a fixing portion fixed on the circuit board, a contact portion extending from the circuit board, and A connecting portion connecting the fixing portion and the contact portion, the fixing portion and the contact portion being located in different planes. The connecting assembly of claim 2, wherein the fixing portion of the terminal has a base portion abutting on the circuit board and a fixing leg bent and extended from both sides of the base portion, and the fixing legs on each side of the base portion are paired. The interval setting is a harpoon type. The connection assembly of claim 3, wherein the terminal further has a soldering portion extending from the fixing portion away from the end of the contact portion, and the circuit board is correspondingly provided with a soldering hole. The connection assembly of claim 1, wherein the wire is collectively connected to the other end of the circuit board, the connection assembly further comprising a protection block injection molded at the junction of the wire and the circuit board. The connection assembly of claim 1, wherein the connection assembly further comprises a thermal sensor disposed on the circuit board. A connection assembly is electrically connected between the battery pack and a battery management system, the connection assembly includes a first connection component for connecting to a positive terminal of the battery pack, and a second connection for connecting to a negative end of the battery pack a first component connected to the battery management system, wherein: the first connection component and the second connection component respectively comprise: a circuit board; a plurality of terminals Connected to one end of the circuit board to be electrically connected to the plurality of battery cells in the battery pack respectively; the plurality of wires are connected at one end to the other end of the circuit board, and are electrically connected to the terminal by the circuit board, and the other end is electrically connected Connected to the first connector. The connection assembly of claim 7, wherein each of the terminals has a soldering portion soldered to the circuit board and a contact portion extending from the circuit board, the contact portion being in a sinker design. The connection assembly of claim 7, wherein the wire is collectively connected to the other end of the circuit board, and the first connection component and the second connection component further comprise injection molding on the wire and the circuit board, respectively. Protective block at the connection. The connection assembly of claim 7, wherein the first connection component and the second connection component further comprise thermal sensors respectively disposed on the circuit board.