TW201916432A - Battery connection module suitable for following assembly and usage as integrated module - Google Patents

Abstract

A battery connection module is suitable for connecting a battery pack. The battery connection module comprises: a carrying tray; a plurality of busbars mounted on the carrying tray and suitable for electrically connecting a plurality of batteries of the battery pack; a flexible circuit board mounted on the carrying tray and mechanically and electrically connected to the plurality of busbars, wherein the flexible circuit board is provided with a frame portion having an opening, and a flexible insertion portion is disposed in the opening of the frame portion; and, a battery management board mounted on the carrying tray and positioned above the flexible circuit board, and comprising a flexible circuit board connector. In which, the flexible insertion portion is extended into the opening and is reversely bent and inserted into the connector for the flexible circuit board on the battery management board. The entire structure of the battery management board of the present invention is convenient for the following assembly and usage as an integrated module.

Description

Battery connection module

The invention relates to a battery connection module, in particular to a battery connection module for serially connecting a rechargeable battery for high power output.

A battery system in which a plurality of electrochemical rechargeable batteries are arranged side by side to form a battery pack, for example, a battery for a vehicle, which is generally connected in series by a battery connection module to form a pair of output electrodes, and the battery connection module is also provided with a control circuit. To connect the Battery Management System (BMS).

A battery module is disclosed in the Chinese Patent No. CN102751465B (corresponding to JP2012-226969 A), which is externally connected to the mating-side electrical connector of an electric processing device through an electrical connector at the end of the flexible flat cable (FFC). The flexible flat cable (FFC) extends a long distance to connect to an external electrical processing unit (equivalent to a battery management board) and must be mated to each other by two connectors.

Chinese Patent Publication No. CN105144463A (corresponding to US 2016/0043446, JP 2012-226969 A, WO 2014/173684 A2) discloses a battery contact system for an electrochemical device in which a monitoring unit (equivalent to a battery management board) has a plug and play The contact connector, the signal transmission system includes one or more signal lines, and the signal lines electrically connect the respective signal sources to the signal line connectors. The plug-in contact connector of the monitoring unit is mated to the signal line connector of the signalling system. Although the monitoring unit is housed in the carrier assembly, the signal transmission system is connected to the signal line connector by a plurality of wires, and is required to be paired with each other through the two connectors.

Accordingly, it is an object of the present invention to provide a battery connection module having a battery management board and reducing the number of connectors.

Therefore, in some embodiments, the battery connection module of the present invention is suitable for connecting a battery pack. The battery connection module comprises a carrier tray, a plurality of bus bars, a battery management board and a flexible circuit board. The bus bars are mounted on the carrier tray and are adapted to electrically connect the plurality of batteries of the battery pack. The flexible circuit board has a frame portion with an opening, a flexible insertion portion is disposed in the opening of the frame portion, a battery management plate is mounted on the carrier plate and located above the flexible circuit board, and includes a flexible circuit a connector for the board; the flexible plug extends into the opening and bends the connector for the flexible circuit board that is plugged into the battery management board in a reverse direction.

In some implementations, the flexible plug has an exposed conductive line for mating with the flexible circuit board connector.

In some embodiments, the flexible circuit board further includes a plurality of conductive sheets connected to the frame portion and mechanically and electrically connecting the bus bars, respectively.

The invention has at least the following effects: the battery management board is directly mounted on the carrier tray and electrically connected to the busbar through the flexible circuit board, and the integrated structure is integrated to facilitate subsequent assembly and use. Moreover, the battery management board only needs to be provided with a flexible circuit board connector to be directly connected to the flexible circuit board, which can reduce the number of components and save costs. Further, the flexible plug portion connected to the battery management board is formed by cutting a board body constituting the flexible circuit board, can effectively utilize the space, and is easy to fit the position where the battery management board is coupled to the carrier board, so that the battery management board is set. The location has the flexibility of transformation.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1 to FIG. 3, an embodiment of the battery connection module of the present invention is suitable for connecting a battery pack 5, the battery connection module comprises a carrier disk 1, a plurality of bus bars 2, and a battery management board 3 (Battery Management) System, abbreviated BMS) and a flexible circuit board 4.

The bus bars 2 are mounted on the carrier tray 1 and are adapted to electrically connect the plurality of batteries 51 of the battery pack 5. Specifically, the carrier 1 is made of an insulating material, and has a base wall 11 , two frame walls 12 connected to the two sides of the base wall 11 , a plurality of partition walls 13 and a plurality of limiting walls 14 . The frame wall 12, the partition wall 13 and the limiting wall 14 collectively define a plurality of mounting slots 15 for receiving the bus bars 2, respectively. The carrier tray 1 further has a plurality of upper limit blocks 16 projecting from the frame walls 12, and the upper limit blocks 16 are respectively located above the bus bars 2 to limit the bus bars 2. Two of the bus bars 2 are electrode output members 2 ′, and the remaining bus bars 2 each have two electrode connection portions 21 respectively connecting the electrodes 52 of the adjacent two batteries 51 and a connection between the two electrode connection portions 21 . The buffer protrusions 22 are connected in series by the bus bars 2 and the two electrode output members 2' are respectively connected to the electrodes 52 at both ends of the head and the tail. The carrier tray 1 further has a plurality of support ribs 17 respectively corresponding to the buffer protrusions 22.

Referring to FIGS. 4-7, the battery management board 3 is mounted on the carrier tray 1, and includes a flexible circuit board connector 31 and a main circuit connector 32. The main circuit connector 32 is adapted to connect a main circuit system (not shown) of the device in which the battery pack 5 is mounted. The carrier tray 1 has a mounting position 18 for arranging the battery management board 3 such that the battery management board 3 is located above the flexible circuit board 4. The carrier tray 1 further has a plurality of first mounting structures 19 disposed on the circumferential side of the mounting position 18, and the battery management board 3 has a plurality of second mounting structures 33 respectively corresponding to the first mounting structures 19 to The battery management board 3 is fixed to the mounting position 18. In the present embodiment, the mounting position 18 is defined by four bumps 181 protruding from the base wall 11, and the positions of the bumps 181 respectively correspond to the four corners of the battery management board 3. The first mounting structures 19 are respectively disposed on the bumps 181. The first mounting structure 19 is a positioning post 191 and a locking hole 192 . Each of the bumps 181 is provided with a positioning post 191 and a locking hole 192 . The second mounting structure 33 is a perforation, wherein the position corresponding to the through hole 33 of the positioning post 191 is used for the positioning post 191 to be pierced, and the positioning post 191 is heat-fusible to fix the battery management board 3, and the position corresponds to The through hole 33 of the keyhole 192 is threaded by a fastener such as a screw (not shown) to be screwed to the lock hole 192 and to fix the battery management board 3. In the embodiment, the first mounting structure 19 is a positioning post 191 and a locking hole 192 for reinforcing the battery management board 3, but in a modified embodiment, the first mounting structure 19 may be a positioning post 191 or a keyhole. 192 alternative settings can also have a fixed effect.

The flexible circuit board 4 is mounted on the carrier 1 and mechanically and electrically connected to the bus bars 2, and includes a flexible plug 42, and the end of the flexible plug 42 is inserted into the The flexible circuit board connector 31 is electrically connected to the flexible circuit board connector 31. In the present embodiment, the flexible circuit board 4 further includes a body portion 41 formed by cutting the body portion 41. The three sides of the flexible plug portion 42 are disconnected from the body portion 41. The strip is elongated so that one end is connected to the body portion 41 and the other end has an exposed conductive wire 421 to be inserted into the flexible circuit board connector 31. Further, the flexible plug portion 42 is bent in the reverse direction and then inserted into the connector 31 for the flexible circuit board.

In this embodiment, the main body portion 41 has a plurality of mounting holes 411. The carrier plate 1 has a plurality of mounting posts 111 respectively penetrating the mounting holes 411. The mounting posts 111 protrude from the base wall 11. The body portion 41 is positioned opposite to the carrier tray 1. Moreover, the mounting posts 111 can be further hot melted to secure the body portion 41. The flexible circuit board 4 further includes a plurality of conductive sheets 43 connected to the body portion 41 and electrically and electrically connecting the bus bars 2, respectively, and a plurality of the conductive sheets 43 connected to the body portion 41 and respectively protruding from the conductive sheet The upper limit slice 44 above the busbar 2 is equal. The main body portion 41 is electrically connected to the bus bars 2 through the conductive sheets 43, and is connected to the conductive wires 421 of the flexible plug portion 42 through circuit traces (not shown) of the main body portion 41, and is The conductive wires 421 are electrically connected to the flexible circuit board connector 31 such that the bus bars 2 are electrically connected to the battery management board 3. In addition, in the embodiment, the flexible circuit board 4 further includes a plurality of temperature sensing members 45 disposed on the body portion 41. The temperature sensing members 45 also pass through the circuit traces of the body portion 41 and the flexibility. The plug portion 42 is electrically connected to the battery management board 3. Each of the upper limit plates 44 has a fixing hole 441. The carrier plate 1 has a plurality of fixing posts 112 respectively disposed through the fixing holes 441. The body portion 41 further has a plurality of positions corresponding to the fixing holes 441. The perforations 412 are passed through the fixed posts 112. The fixed posts 112 can be further hot melted to secure the upper limit tabs 44. The upper limit slice 44 and the upper limit block 16 together limit the corresponding bus 2 .

In summary, the battery management board 3 is directly mounted on the carrier tray 1 and electrically connected to the busbar 2 through the flexible circuit board 4, and integrally constitutes an integrated module for subsequent assembly and use. Moreover, the battery management board 3 can be directly connected to the flexible circuit board 4 by providing only one flexible circuit board connector 31, which can reduce the number of components and save cost. Further, the flexible plug portion 42 connected to the battery management board 3 is formed by cutting the board body constituting the flexible circuit board 4, can effectively utilize the space, and easily fits the position where the battery management board 3 is coupled to the carrier board 1, so that The position set by the battery management board 3 has a change flexibility.

A second embodiment of the present invention will now be described with reference to FIG. 8, which is a perspective view of a second embodiment of the battery connecting module of the present invention. For the sake of brevity, only portions that are different from the above-described embodiments are described herein, and the description of the remaining identical portions is referred to above.

Referring to FIG. 8, in this embodiment, the flexible circuit board 4" has a frame portion 414'' formed by opening an opening 413'', and the flexible plug portion 42' ' extends into the opening 413'' of the frame portion 414''. The flexible plug portion 42'' has an exposed conductive wire which is bent in the opposite direction by 180 degrees and then mated with the flexible circuit board connector 31 on the battery management board 3. Thereby, the battery management board 3 is electrically connected to the bus bar 2 via the flexible circuit board 4''. Thus, the overall configuration is an integrated module that facilitates subsequent assembly and use. Further, the battery management board 3 can be directly connected to the flexible circuit board 4'' by providing only one flexible circuit board connector 31, thereby reducing the number of components and cost.

However, the above description is only for the embodiments of the present invention, and the scope of the present invention is not limited thereto. The simple equivalent changes and modifications made by the content of the patent application and the contents of the patent specification of the present invention are still the patents of the present invention. Covered by the scope.

1‧‧‧ Carrying tray

11‧‧‧ base wall

111‧‧‧Installation column

112‧‧‧Fixed column

12‧‧‧ frame wall

13‧‧‧ partition wall

14‧‧‧Limited wall

15‧‧‧Installation slot

16‧‧‧ upper limit block

17‧‧‧Support ribs

18‧‧‧Installation location

181‧‧‧Bumps

19‧‧‧First installation structure

191‧‧‧ positioning column

192‧‧‧Keyhole

2‧‧‧CC

2'‧‧‧Electrode output

21‧‧‧Electrode connection

22‧‧‧buffer convex

3‧‧‧Battery Management Board

31‧‧‧Connectors for flexible circuit boards

32‧‧‧Main circuit connector

33‧‧‧Second installation structure

4, 4''‧‧‧Flexible circuit boards

41‧‧‧ Body Department

411‧‧‧Installation hole

412‧‧‧Perforation

413’’‧‧‧ openings

414’’‧‧‧ Framed Department

42, 42’’‧‧‧ Flexible Interconnect

421‧‧‧Flexible wire

43‧‧‧Conductor

44‧‧‧ upper limit film

441‧‧‧Fixed holes

45‧‧‧Temperature sensing parts

5‧‧‧Battery Pack

51‧‧‧Battery

52‧‧‧Electrode

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of a battery connection module of the present invention and a battery pack; FIG. 2 is an embodiment of the present invention. FIG. 3 is an exploded perspective view of the carrier and the busbar of the embodiment; FIG. 4 is a perspective view of the embodiment; FIG. 5 is an exploded perspective view of the embodiment; Figure 6 is an exploded perspective view of the embodiment, wherein a battery management board is not shown; Figure 7 is an exploded perspective view of the flexible circuit board of the embodiment; and Figure 8 is another embodiment of the battery connection module of the present invention. Schematic diagram of an embodiment

Claims (3)

The utility model relates to a battery connection module, which is suitable for connecting a battery pack. The battery connection module comprises: a carrier tray; a plurality of busbars mounted on the carrier tray, suitable for electrically connecting a plurality of batteries of the battery pack; a circuit board mounted on the carrier and mechanically and electrically connected to the busbars, the flexible circuit board having a frame portion with an opening, a flexible plug portion being disposed in the opening of the frame portion; And a battery management board mounted on the carrier and located above the flexible circuit board and including a connector for a flexible circuit board; the flexible plug portion extends into the opening and is bent and inserted in the opposite direction A connector for a flexible circuit board on the battery management board. The battery connection module of claim 1, wherein the flexible plug has an exposed conductive wire for plugging with the flexible circuit board connector. The battery connection module of claim 2, wherein the flexible circuit board further comprises a plurality of conductive sheets connected to the frame portion and mechanically and electrically connected to the bus bars, respectively.