TWI670888B - Battery connection module - Google Patents

Abstract

The utility model relates to a battery connection module, which is suitable for connecting a battery pack, and comprises a carrier plate, a plurality of bus pieces, a flexible circuit piece and a cable connector. The flexible circuit component has a body connected to the busbar and an external connecting body connected to the body. The external connecting body has at least one plug-in piece, and the plug-in piece is provided with a first holding portion. The cable connector includes an insulating housing, multiple conductive terminals, and multiple wires. The insulating housing has at least one insertion slot corresponding to the insertion piece, and the insertion slot is provided with a second holding portion for combining with the first holding portion to hold the corresponding insertion piece in the insertion slot. . The conductive terminal is disposed in the insulating housing and is disposed corresponding to the plug slot. The conductive terminal has a contact portion protruding into the plug slot, and a tail portion located at the opposite end of the contact portion. The wires are respectively connected to the tails of the conductive terminals.

Description

Battery connection module

The present invention relates to a battery connection module, and particularly to a battery connection module that can be connected to a battery management system.

Generally, a power supply device manages one or more battery modules through a battery management system. The existing method for connecting the battery management system to the battery module is to separately set a socket connector in the battery management system and the battery module, and use a cable with plug connectors at both ends to separate the two plug connectors. It is connected with the socket connector of the battery management system and the socket connector of the electronic module, so as to electrically connect the battery management system with the battery module. Therefore, there will be two socket connectors and two plug connectors on the connection line. Four connectors.

Due to the severe use environment or long-term use of connectors that are docked with each other, for example, connectors used in power supply equipment for vehicles, they are prone to problems such as poor contact, loosening, and disconnection due to deterioration. .

Therefore, one object of the present invention is to provide a battery connection module capable of reducing the number of connectors that are docked with each other, so as to reduce problems caused by the connectors.

Therefore, in some embodiments, the battery connection module of the present invention is suitable for connecting a battery pack. The battery connection module includes a carrier disk, a plurality of buses, a flexible circuit component, and a cable connector. The carrier tray is suitable for being disposed on the battery pack. The busbars are provided on the carrier plate and are suitable for electrically connecting the battery pack. The flexible circuit component has a body mechanically and electrically connected to the bus pieces, and an external connection body connected to the body. The external connection body has at least one plug-in piece, and each plug-in piece is provided with a First holding section. The cable connector includes an insulating housing, a plurality of conductive terminals, and a plurality of wires. The insulating housing has at least one insertion slot corresponding to the at least one insertion piece, and each insertion slot is provided with a second holding portion for combining with the first holding portion to insert the corresponding insertion portion. The tab is held in the socket. The conductive terminals are disposed in the insulating housing and should be provided with at least one plug-in slot. Each conductive terminal has a contact portion that protrudes into the corresponding plug-in slot to be electrically connected to the corresponding plug-in piece, and is located in the A tail at the opposite end of the contact. The wires are respectively connected to the tails of the conductive terminals.

In some embodiments, the first holding portion includes two notches formed in the plug-in piece, and the second holding portion includes two elastic cards provided in the insulating case to respectively snap into the notches. Piece.

In some embodiments, the elastic blocks are integrally formed on the insulating housing.

In some embodiments, each plug-in piece is provided with a reinforcing plate for supporting the plug-in piece.

In some embodiments, the external connection body has two plug-in pieces, and the insulating housing has two plug-in slots.

In some embodiments, each conductive terminal further has a main body portion interposed between the contact portion and the tail portion, the contact portion extends from the main body portion to form a curved structure, and an end of the contact portion is at The contact portion is elastically abutted against the main body portion when the contact portion is in contact with the corresponding plug piece when receiving force.

In some embodiments, each conductive terminal further has a positioning portion connected between the main body portion and the tail portion. The conductive terminals are arranged in a row corresponding to each of the plugging slots. The cable connector It also includes at least one terminal position holder assembled in the insulating housing. Each terminal position holder has a strip-shaped retaining block, and the retaining block resists a side adjacent to the tail portion of the positioning portion of the same row of conductive terminals.

In some embodiments, each terminal position retaining member further has a flat plate portion and two buckle portions respectively connected to opposite ends of the flat plate portion. Each of the buckle portions forms a snap slot, and the holding block is formed by the flat plate One side of the portion is convex and is located between the two buckling portions. The insulating housing also has at least one receiving slot to correspondingly hold the holding block of the at least one terminal position holder, and corresponding to each receiving slot. There are two positioning projections to pass through the two card slots of the corresponding terminal position holder.

In some embodiments, each conductive terminal further has a holding piece extending from the main body portion toward the positioning portion, and the insulating housing further has a plurality of holding openings for the holding pieces of the conductive terminals, respectively. Reach in to limit the clip.

The invention has at least the following effects: the battery connection module is directly connected to the cable connector through a flexible circuit part, which can form a good electrical connection stability and reliability, and can reduce the number of connectors inserted into each other compared to the prior art. Problems caused by connection, and improve the quality of the external electrical connection of the battery connection module and the stability and reliability of the electrical connection.

Referring to FIGS. 1 to 3, an embodiment of a battery connection module of the present invention is suitable for connecting a battery pack 1 composed of a plurality of side-by-side batteries 11. The battery connection module includes a carrier plate 2, a plurality of buses 3, A flexible circuit component 4, a cable connector 5 and an upper cover 6.

The carrier tray 2 is suitable for being disposed on the battery pack 1. The busbars 3 are disposed on the carrier plate 2 and are suitable for electrically connecting the battery pack 1. Each busbar 3 is suitable for electrically connecting the electrodes 12 of at least two adjacent batteries 11.

The flexible circuit component 4 integrally has a body 41 and an external connection body 42 connected to the body 41. The body 41 is mechanically and electrically connected to the busbars 3 through a conductive sheet 43, for example, by welding, one end of each conductive bar 43 is connected to the busbar 3 and the other end is connected to a conductive line on the body 41, and the body 41 Each of the conductive lines on the extension extends to the external connection body 42. In addition to the conductive lines connected to the busbars 3, these conductive lines may further include a line connected to a temperature sensor or a line connected to other components. In this embodiment, the carrier tray 2 has a mounting base 21 on the side to accommodate the external connection body 42, and an upper cover 6 covers the carrier tray 2 to shield the busbars 3 and the flexible circuit member 4. And mounting base 21.

Referring to FIGS. 4 to 6, in this embodiment, the external connecting body 42 integrally has two plug-in pieces 421 arranged side by side, and each plug-in piece 421 is provided with a first holding portion 422. In addition, a plurality of exposed conductive pads 44 are provided on the opposite inner sides of the two plug pieces 421 to electrically connect the conductive lines, and a reinforcing plate 45 is provided on the opposite outer sides of the two plug pieces 421 to support the corresponding plugs接 片 421. Then 421. In another embodiment, the positions of the conductive pads 44 can also be changed to the outside, and the reinforcing plate 45 is provided on the inside.

The cable connector 5 includes an insulating housing 51, a plurality of conductive terminals 52, a plurality of wires 53, and two terminal position retaining members 54. The insulating housing 51 has two insertion grooves 511 for the two insertion pieces 421 to be inserted respectively, and a second holding portion 512 is formed in each of the insertion grooves 511 to be combined with the first holding portion 422. The corresponding insertion piece 421 is held in the insertion slot 511. Referring to FIG. 5, FIG. 7 and FIG. 8, in this embodiment, the first holding portion 422 of each plug-in piece 421 includes two edges formed on opposite sides of the plug-in piece 421 respectively (as shown in the upper and lower parts of FIG. 5). Side edge) recess 422a, and the contour of each reinforcing plate 45 corresponding to the contour of the insert piece 421 also forms a corresponding recess, and each second holding portion 512 includes a portion provided in the insulating housing 51 to be respectively locked. The two elastic clips 512a of the recesses 422a are inserted into the recesses 422a, thereby holding the corresponding inserting pieces 421 in the inserting grooves 511. In this embodiment, the elastic clamping blocks 512 a are integrally formed on the insulating casing 51. When inserting the inserting piece 421 into the corresponding inserting groove 511, the elastic clamping block 512a can be elastically displaced so that the end of the inserting piece 421 can be locked in the corresponding recess 422a after resetting, as shown in FIG. This fixes the plug-in piece 421 in the plug-in slot 511 in a limited position.

Referring to FIG. 6, FIG. 7, and FIG. 9, the insulating housing 51 further has a plurality of terminal slots 517. The terminal slots 517 are arranged in two rows corresponding to the two insertion slots 511, and each row of the terminal slots 517 is connected to the corresponding insertion slot 511. through. The conductive terminals 52 are respectively disposed in the terminal grooves 517 of the insulating housing 51 and are arranged in two rows corresponding to the two insertion grooves 511, that is, arranged in a row corresponding to each of the insertion grooves 511. Each conductive terminal 52 has a contact portion 521 protruding into the corresponding plug slot 511 to be electrically connected to the corresponding plug piece 421, a tail portion 522 at the opposite end of the contact portion 521, and a contact portion 521 and the contact portion 521. A main body portion 523 between the tail portions 522 and a positioning portion 524 connected between the main body portion 523 and the tail portion 522. The contact portion 521 extends from the main body portion 523 to form a reversely bent structure, and an end of the contact portion 521 elastically abuts against the main body portion 523 when the contact portion 521 contacts the corresponding plug piece 421 and is stressed. . Specifically, the contact portions 521 of the conductive terminals 52 are used to contact the conductive pads 44 (see FIG. 5) on the plug-in pieces 421 to form electrical connections, thereby connecting the conductive lines of the flexible circuit component 4 to the cables. The device 5 forms an electrical connection. The contact portion 521 forms a curved structure that can flexibly abut the main body portion 523 by the end of the contact portion 521 when contacting the conductive pad 44 to increase the positive force of contact with the conductive pad 44 and thereby increase the electrical connection. The stability. Each conductive terminal 52 also has a holding piece 525 extending from the main body portion 523 toward the positioning portion 524. The insulating housing 51 also has a plurality of holding openings 513 that communicate with the terminal slots 517 for two rows of electrical conduction. The holding piece 525 of the terminal 52 extends to limit the holding piece 525. The wires 53 are respectively connected to the tail portions 522 of the conductive terminals 52, and are clamped and fixed by the tail portions 522. The other ends of the wires 53 are suitable for connecting to a battery management system (not shown). Each terminal position holding member 54 has a strip-shaped holding block 541 which abuts against a side of the positioning portion 524 adjacent to the tail portion 522 of the same row of the conductive terminals 52. Specifically, in this embodiment, each terminal position holder 54 further has a flat plate portion 542 and two latching portions 543 connected to opposite ends of the flat plate portion 542, respectively. Each latching portion 543 forms a card. The groove 544, the holding block 541 protrudes from a side surface of the flat plate portion 542 and is located between the two buckling portions 543. The insulating housing 51 also has two receiving slots 514 to receive the holding blocks 541 of the two terminal position holders 54 respectively. Each receiving slot 514 communicates with each terminal slot 517 in the same row and corresponds to each receiving slot. The groove 514 is provided with two positioning protrusions 515 to pass through the two clamping grooves 544 of the corresponding terminal position holder 54 respectively. In addition, a blocking portion 516 adjacent to the holding opening 513 is formed in each terminal slot 517 of the insulating housing 51, and each blocking portion 516 is located between the positioning portion 524 and the holding piece 525 of the same row of the conductive terminals 52. To stop the positioning portion 524. For convenience of explanation, the inlet side of the insertion groove 511 of the insulating housing 51 is defined as the front side, and the side opposite to the front side is the rear side. When the conductive terminals 52 are assembled, the conductive terminals 52 are insulated by the insulation. The rear side of the housing 51 is inserted into each of the terminal grooves 517 of the insulating housing 51, so that the contact portion 521 is moved to the insertion groove 511. When the positioning is reached, the front side of the positioning portion 524 is blocked by the blocking portion 516 and the holding piece 525 extends into the holding opening 513 and the rear side of the positioning portion 524 is adjacent to the receiving groove 514. The terminal position retaining member 54 is assembled to the insulating housing 51, so that the retaining block 541 is accommodated in the receiving groove 514 and extends into each terminal groove 517 of the same row to resist the rear of the positioning portion 524 of the conductive terminal 52 of the same row. Side (the side adjacent to the tail portion 522), so that the conductive terminal 52 is stopped by the blocking portion 516 in the front direction, and when the conductive terminal 52 moves backward (opposite to the assembly direction) backward, the holding piece 525 will abut against the card The wall surface of the holding opening 513 and the positioning portion 524 abut against the holding block 541, thereby preventing the conductive terminal 52 from coming out of the insulating housing 51.

Although two plug-in pieces 421 of the flexible circuit component 4 are described in this embodiment as an example, in a modified embodiment, there may be only one plug-in piece 421 and the plug-in slot 511 of the cable connector 5 And the terminal position holding member 54 is also adjusted to one correspondingly, of course, the conductive terminals 52 and the lead wires 53 are also adjusted to one row. In other words, the number of the plug-in pieces 421 corresponds to the number of the plug-in slots 511, and the conductive terminals 52, the wires 53 and the terminal position holders 54 are adjusted according to the number of the plug-in slots 511, which is not limited to this embodiment.

In summary, the battery connection module is directly plugged into the cable connector 5 through the flexible circuit part 4, which can form a good electrical connection stability and reliability, and can reduce the number of connectors that are inserted into each other compared to the prior art. Problems caused by connection, and improve the quality of the external electrical connection of the battery connection module and the stability and reliability of the electrical connection.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

1 ······ Battery Pack 11 ····· Battery 12 ····· 2 Electrodes 2 ················ 2 ······ Busbar 4 ······ Flexible circuit parts 41 ····· 42 Body ···· External connector 421 ··· Insert piece 422 · ··· 1st holding portion 422a ··· Notch 43 ···· Conductive sheet 44 ···· Conductive pad 45 ··· Reinforcing plate 5 ···· · Cable connector 51 ····· Insulated housing 511 ··· Socket slot 512 ···· 2nd holding part 512a ··· Elastic clip 513 ···· Port 514 ... Receiving groove 515 ... Positioning projection 516 ... Blocking portion 517 ... Terminal groove 52 ... Conductive terminal 521 ... Contact part 522 ... Tail part 523 ... Body part 524 ... Positioning part 525 ... Clamping piece 53 ... Wire 54 ... Terminal Position holder 541 ........ Holding block 542 ..... Flat section 543 ..... Buckle section 544 ..... Slot slot 6 ......... Upper cover         

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a perspective view of an embodiment of a battery connection module of the present invention mounted on a battery pack; FIG. 2 is a corresponding diagram 1 is an exploded perspective view of the embodiment; FIG. 3 is an exploded perspective view of the embodiment; FIG. 4 is an incomplete perspective view of the embodiment; FIG. 5 is an exploded perspective view corresponding to FIG. 4; An exploded perspective view of the connector; FIG. 7 is a plan view corresponding to FIG. 4; FIG. 8 is a cross-sectional view taken along the line VIII-VIII in FIG. 7; and FIG. 9 is a cross-sectional view taken along the line IX-IX in FIG. .

Claims (9)

A battery connection module is suitable for connecting a battery pack. The battery connection module includes: a carrier plate adapted to be arranged on the battery pack; a plurality of bus pieces arranged on the carrier plate and adapted to electrically connect the battery; A flexible circuit component having a body mechanically and electrically connected to the busbars and an external connector connected to the body, the external connector having at least one connector piece, each connector The sheet is provided with a first holding part; and a cable connector including an insulating case, a plurality of conductive terminals and a plurality of wires, the insulating case having at least one plug corresponding to the at least one plug sheet A slot is provided in each plug slot, and a second holding portion for combining with the first holding portion to hold the corresponding plug piece in the plug slot, and the conductive terminals are provided in the insulating housing It should be provided with at least one plug-in slot. Each conductive terminal has a contact portion protruding into the corresponding plug-in slot to be electrically connected to the corresponding plug-in piece, and a tail portion at the opposite end of the contact portion. Respectively connected to these conductive terminals Tail. The battery connection module according to claim 1, wherein the first holding portion includes two recesses formed in the plug-in piece, and the second holding portion includes a recess provided in the insulating case to be respectively inserted into the recesses. Mouth with two elastic clips. The battery connection module according to claim 2, wherein the elastic clips are integrally formed on the insulation case. The battery connection module according to claim 2, wherein each plug-in piece is provided with a reinforcing plate for supporting the plug-in piece. The battery connection module according to any one of claims 1 to 4, wherein the external connection body has two plug-in pieces, and the insulating housing has two plug-in slots. The battery connection module according to claim 5, wherein each conductive terminal further has a main body portion interposed between the contact portion and the tail portion, and the contact portion extends from the main body portion to form a reversely bent structure and An end of the contact portion is elastically abutted against the main body portion when the contact portion is in contact with the corresponding plug-in piece and is stressed. The battery connection module according to claim 6, wherein each conductive terminal further has a positioning portion connected between the main body portion and the tail portion, and the conductive terminals are arranged in a row corresponding to each plugging slot. The cable connector further includes at least one terminal position holder assembled in the insulating housing. Each terminal position holder has a strip-shaped retaining block, and the retaining block resists adjacent tail portions of the positioning portion of the same row of conductive terminals. The side. The battery connection module according to claim 7, wherein each terminal position holder further has a flat plate portion and two buckle portions respectively connected to opposite ends of the flat plate portion, and each buckle portion forms a card slot, The holding block protrudes from one side of the flat plate portion and is located between the two buckling portions. The insulating housing also has at least one receiving slot to correspondingly hold the holding block of the at least one terminal position holder, and corresponding Each accommodating groove is provided with two positioning protrusions to pass through the two clamping grooves of the corresponding terminal position holder respectively. The battery connection module according to claim 7, wherein each conductive terminal further includes a holding piece extending from the main body portion toward the positioning portion, and the insulating housing also has a plurality of holding ports for these The holding piece of the conductive terminal is extended to limit the holding piece.