TWI651892B - Battery connection module - Google Patents

Abstract

A battery connection module comprises a carrier disk, a plurality of bus bars, a flexible circuit component, a cable, a plurality of integral terminals and a package. The flexible circuit member has a body portion that is mechanically and electrically connected to each of the bus bars, and an external connection portion that is extended by the body portion. The cable has multiple wires. Each of the terminals has a first end portion and a second end portion at opposite ends, and the first end portion of the terminal is mechanically and electrically connected to the external connection portion of the flexible circuit member, and the second end portion of the terminal is respectively The wires of the cable are mechanically and electrically connected. The package covers the terminal and the connection of the flexible circuit member, the cable and the terminal.

Description

Battery connection module

The invention relates to a battery connection module, in particular to a battery connection module connectable to a battery management system.

A typical power supply device manages one or more battery modules by a battery management system. The existing method of connecting the battery management system and the battery module is to separately set a socket connector in the battery management system and the battery module, and use two cables respectively provided with plug connectors, so that the two plug connectors are respectively The socket connector of the battery connection system and the socket connector of the electronic module are connected to electrically connect the electronic management system with the battery module, so that there are two socket connectors and two plug connectors on the connection line. Four connectors.

Since the connectors that are connected to each other are used in a severe use environment or for a long period of time, for example, a connector for a power supply device for a vehicle, there is a problem that contact failure, looseness, drop, etc. may occur due to deterioration. .

Accordingly, it is an object of the present invention to provide a battery connection module capable of reducing the number of connectors mated to each other to reduce problems caused by connectors.

Therefore, in some embodiments, the battery connection module of the present invention is suitable for connecting a battery pack, and the battery connection module comprises a carrier disk, a plurality of bus bars, a flexible circuit component, a cable, and multiple components. Terminal and a package. The carrier tray is adapted to be disposed on the battery pack. The busbars are disposed on the carrier tray and are adapted to electrically connect the battery pack. The flexible circuit member has a body portion that is mechanically and electrically connected to each of the bus bars, and an external connection portion that extends from the body portion. The cable has multiple wires. Each of the terminals has a first end portion and a second end portion at opposite ends, and the first end portion of the terminals is mechanically and electrically connected to the external connection portion of the flexible circuit member, and the terminals are The second ends mechanically and electrically connect the wires of the cable, respectively. The package encloses the terminals and the flexible circuit member, the connection of the cable to the terminals.

In some embodiments, an electrical connector is also coupled to the end of the cable.

In some implementations, the external connecting portion includes two elongated mounting segments that are spaced apart from each other. The wires are arranged in two rows, and the terminals are connected in two rows to respectively connect the ends of the two mounting segments and the two The battery connection module further includes an insulating spacer disposed between the two mounting sections and the two rows of terminals.

In some embodiments, each of the terminals further has an intermediate portion connecting the first end portion and the second end portion, and the first end portion has a portion extending from the intermediate portion to abut the flexible circuit member. a plate-shaped abutting section, and a plurality of piercing blocks extending from the abutting section to pierce the flexible circuit member.

In some embodiments, each of the wires has a conductor and an insulating sheath covering the conductor, and an end of the conductor exposes the insulating sheath, and a second end of each terminal has a clamping corresponding wire a first holding section of the exposed conductor, and a second holding section that clamps the end of the insulating sheath of the corresponding wire.

The invention has at least the following effects: mechanically and electrically connecting the flexible circuit member and the cable respectively through the first end portion and the second end portion of the terminal, and protecting the terminal and the flexible circuit member, the cable and the package from the package The connection of the terminals enables good electrical connection stability and reliability between the cable and the flexible circuit member, and the pair of mutually plugged connectors can be omitted compared with the prior art, and the connector can be reduced. Problems caused by plugging each other.

Referring to FIG. 1 to FIG. 4, an embodiment of the battery connection module of the present invention is suitable for connecting a battery pack 10 composed of a plurality of battery cells arranged side by side. The battery connection module includes a carrier disk 1, a plurality of bus bars 2, and a battery pack. The conductive member 3, a flexible circuit member 4, a cable 5, a plurality of integral terminals 6, an insulating spacer 7, a package member 8, and an electrical connector 9.

The carrier tray 1 is adapted to be disposed on the battery pack 10. The busbars 2 are disposed on the carrier tray 1 and are adapted to electrically connect the battery packs 10. Each of the busbars 2 is adapted to electrically connect electrodes (not shown) of at least two adjacent batteries. In this embodiment, The busbar 2 is connected to two output busbars 2' respectively located on both sides in a staggered arrangement in which the cells are partially connected in parallel and in a series connection between the head and the tail, and one end of the conducting member 3 is connected to one of the output busters 2', and the other end is connected. Adjacent to the other output buster 2', the external connecting line connects the conducting member 3 and the output busbar 2' of the adjacent conducting member 3 on the same side. In an embodiment, the conductive member 3 can be omitted.

The flexible circuit member 4 has a main body portion 41 and an outer connecting portion 42 extending from the main body portion 41. The main body portion 41 is mechanically and electrically connected to each of the bus bars 2 via the conductive sheets 43, for example, by welding, one end of each of the conductive sheets 43 is connected to the bus bar 2, and the other end is connected to the conductive line on the main body portion 41. The flexible circuit member 4 may be, for example, an FFC flexible cable and an FPC flexible circuit board. In the present embodiment, the main body portion 41 is substantially U-shaped to connect the two rows of the flow collecting members 2, but in a modified embodiment, the main body portion 41 may also be a one-piece unit. In addition, in the present embodiment, the external connecting portion 42 includes a connecting portion 421 extending from the main body portion 41, and two of the connecting portions 421 are respectively extended in opposite directions from each other and then bent to be spaced apart from each other. Long strip-shaped mounting section 422. The conductive lines on the main body portion 41 extend to the mounting portion 422. The conductive lines may further include a line connecting the temperature sensor or a line connecting other components in addition to the conductive lines connecting the current collecting members 2.

Referring to FIG. 3 to FIG. 6, the cable 5 has a plurality of wires 51. Each of the wires 51 has a conductor 511 and an insulating sheath layer 512 covering the conductor 511. The end of the conductor 511 exposes the insulating sheath. 512. Each of the terminals 6 has a first end portion 61 and a second end portion 62 at opposite ends, and an intermediate portion 63 connecting the first end portion 61 and the second end portion 62. The first end portion 61 of the terminals 6 is mechanically and electrically connected to the external connection portion 42 of the flexible circuit member 4, and the second end portions 62 of the terminals 6 are mechanically and electrically connected to the line, respectively. The wires 51 of the cable 5. In this embodiment, the first end portion 61 has a plate-shaped abutting portion 611 extending from the intermediate portion 63 to the flexible circuit member 4, and a plurality of the abutting portions 611 are bent and extended to puncture. Breaking the piercing block 612 of the flexible circuit member 4, the piercing block 612 pierces the flexible circuit member 4 and then bends to be fixed to the flexible circuit member 4, by the first end portion 61 of each terminal 6 Each conductive line on the mounting section 422 is electrically and electrically connected. In an embodiment, the abutting section 611 can directly contact the conductive lines exposed after the mounting section 422 is stripped. In another embodiment, the piercing blocks 612 can be crimped or pierced into the conductive traces. The second end portion 62 has a first holding portion 621 for holding the exposed conductor 511 of the corresponding wire 51, and a second holding portion 622 for holding the end of the insulating sheath layer 512 of the corresponding wire 51, thereby guiding the wire 51 is fixedly connected, the first holding section 621 can be bent to clamp and contact and electrically connect the conductor 511, and the second holding section 622 can be bent to clamp the insulating sheath 512. In addition, in the present embodiment, the wires 51 are arranged in two rows, and the terminals 6 are connected in two rows to respectively connect the ends of the two mounting segments 422 and the two rows of wires 51, and the insulating spacers 7 are disposed on the two wires. The mounting section 422 and the two rows of terminals 6 function to separate the two mounting sections 422 and the two rows of terminals 6 and also support the terminals 6. The package 8 covers the terminals 6 and the flexible circuit member 4, and the connection between the cable 5 and the terminals 6 to protect the terminal 6 and connect the terminal 6 with the flexible circuit member 4 and the cable 5. stable. In this embodiment, the package 8 is formed by injection molding the insulating material, and directly covers the terminal 6 and the flexible circuit member 4, the connection of the cable 5 and the terminal 6 during filling and forming, and thus the package 8 can be filled into the space enclosed by the package member 8 between the components, filled and filled, and the connection structure of the portion is surely fixed and strengthened. The electrical connector 9 is connected to the end of the cable 5, that is, the electrical connector 9 and the terminals 6 are respectively connected to the two ends of the cable 5. The electrical connector 9 is adapted to be disposed on a battery. The docking connector of the management system (not shown) is docked.

In summary, the first end portion 61 and the second end portion 62 of the terminal 6 are respectively mechanically and electrically connected to the flexible circuit member 4 and the cable 5, and the terminal 6 and the flexible circuit are protected by the package 8. The connection between the cable 5 and the terminal 6 enables a good electrical connection stability and reliability between the cable 5 and the flexible circuit member 4, and the pair can be mutually plugged compared to the prior art. The connector can reduce the problems caused by the connectors being plugged into each other.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧ Carrying tray

2‧‧‧CC

3‧‧‧Transmission parts

4‧‧‧Flexible circuit parts

41‧‧‧ Main body

42‧‧‧External Connections

421‧‧‧ Connection section

422‧‧‧Installation section

43‧‧‧Conductor

5‧‧‧ Cable

51‧‧‧Wire

511‧‧‧ conductor

512‧‧‧Insulating sheath

6‧‧‧ terminals

61‧‧‧First end

611‧‧‧Attendance

612‧‧‧ piercing block

62‧‧‧second end

621‧‧‧First holding segment

622‧‧‧Second holding section

63‧‧‧Intermediate

7‧‧‧Insulation partition

8‧‧‧Package

9‧‧‧Electrical connector

10‧‧‧Battery Pack

The other features and advantages of the present invention will be apparent from the embodiments of the present invention. FIG. 1 is an exploded perspective view of an embodiment of a battery connection module of the present invention and a battery pack; 3 is an exploded perspective view of the embodiment; FIG. 3 is an incomplete perspective view of the embodiment; FIG. 4 is an incomplete perspective view of the embodiment; FIG. Figure 6 is an exploded perspective view of one of the embodiments.

Claims (5)

A battery connection module is adapted to be connected to a battery pack. The battery connection module comprises: a carrier tray adapted to be disposed on the battery pack; and a plurality of busbars disposed on the carrier tray for electrically connecting the battery a flexible circuit member having a body portion that is mechanically and electrically connected to each of the bus bars, and an external connection portion extending from the body portion; a cable having a plurality of wires; The terminal has a first end and a second end at opposite ends, and the first end of the terminals is mechanically and electrically connected to the external connection of the flexible circuit member. The second ends of the terminals are respectively mechanically and electrically connected to the wires of the cable; and a package covering the terminals and the flexible circuit member, and the connection of the cable to the terminals At the office. The battery connection module of claim 1, further comprising an electrical connector connected to an end of the cable. The battery connection module of claim 1 or 2, wherein the external connection portion comprises two elongated installation sections that are spaced apart from each other, the wires are arranged in two rows, and the terminals are respectively connected in two rows. The end of the two mounting segments and the two rows of wires, the battery connection module further includes an insulating spacer disposed between the two mounting segments and the two rows of terminals. The battery connection module of claim 3, wherein each terminal further has an intermediate portion connecting the first end portion and the second end portion, and the first end portion has a portion extending from the intermediate portion to resist And a plurality of plate-shaped abutting segments of the flexible circuit member, and a plurality of piercing blocks extending from the abutting portion to pierce the flexible circuit member. The battery connection module of claim 4, wherein each of the wires has a conductor and an insulating sheath covering the conductor, and an end of the conductor exposes the insulating sheath, and the second end of each terminal A first holding segment having an exposed conductor for holding the corresponding wire, and a second holding portion for holding the end of the insulating sheath of the corresponding wire.