Integrated busbar adopting flexible flat cable

Abstract

An integrated busbar adopting a flexible flat cable comprises a support, and a busbar, an FFC (flexible flat cable) and a PCB (printed circuit board) which are arranged on the support, the busbar comprises a plurality of bus members, the FFC is provided with a plurality of acquisition branches, and one acquisition branch performs signal acquisition on one bus member; a plurality of connecting golden fingers are arranged at the end part of the FFC, the PCB is fixed at the end part of the bracket, and the plurality of connecting golden fingers are connected to the PCB; the PCB is provided with an electronic component used for monitoring and monitoring collected data. Compared with the prior art, the integrated busbar adopting the flexible flat cables has the advantages that the end part of the PCB fixing bracket and the plurality of connecting golden fingers of the FFC are connected to the PCB, so that compared with the existing FFC integrated busbar, the integrated busbar adopting the flexible flat cables does not need to be provided with a connector and a corresponding connecting wire, and the cost is reduced; due to the fact that the number of the connectors is reduced, the assembling procedures of the connectors are reduced, the assembling efficiency can be improved, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to integrated busbar technical field, concretely relates to an integrated busbar adopting flexible flat cable. BACKGROUND

[0002] The existing FFC (flexible flat cable) type integrated busbar includes a support, a busbar and a FFC, wherein the FFC cable is provided with a collection branch and a connector, when the integrated busbar is installed on a module, the collection branch is connected to the busbar, so that the module can be signal collected, the connector is connected to the BMS (battery management system) through a wire, and the collected data is transmitted to the PCB of the BMS for monitoring and monitoring. In the integrated busbar, the connector needs to be connected to the FFC cable, and in actual use, there is another connector (male and female connector) matched with the connector, and the use of the connector increases the cost; in addition, the connection of the connector to the FFC cable also increases the assembly process steps, which reduces the production efficiency and increases the production cost. SUMMARY

[0003] The utility model aims at overcoming the deficiency in the prior art, and provides an integrated busbar adopting flexible flat cable.

[0004] In order to achieve the above object, the utility model discloses an integrated busbar adopting flexible flat cable, which comprises a support, a busbar arranged on the support, a FFC cable and a PCB board, the busbar comprises a plurality of bus members, the FFC cable is provided with a plurality of collection branches, and one collection branch collects signals of one bus member.

[0005] The end of the FFC cable is provided with a plurality of connecting gold fingers, the PCB board fixes the end of the support, and the plurality of connecting gold fingers are connected to the PCB board.

[0006] The PCB board is provided with electronic components for monitoring and monitoring the collected data.

[0007] Preferably, the PCB board is a double-sided board structure or a multi-layer board structure.

[0008] Preferably, the FFC cable is provided with a Z-shaped bending step near the position of the PCB board, and the height of the bending step is matched with the thickness of the PCB board.

[0009] Preferably, the support is provided with a first mounting groove, the PCB board is arranged in the first mounting groove, and the bottom of the FFC cable is in contact with the top surface of the PCB board.

[0010] Preferably, the PCB board is provided with a plurality of fuses, and each connecting gold finger is in conduction with a fuse.

[0011] Preferably, the plurality of connecting gold fingers are welded to the PCB board by a Hot-bar process.

[0012] Preferably, the welding position of the connecting gold fingers and the PCB board is coated with protective glue.

[0013] Preferably, the bracket is provided with a plurality of second mounting grooves for mounting busbars, one busbar is mounted in one second mounting groove, the busbar is connected with a nickel sheet, and one collection branch is connected to a corresponding nickel sheet.

[0014] Preferably, the collection branch is wound with a Mylar film.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The integrated busbar adopting the flexible flat cable fixes the end of the PCB board fixing bracket, and the plurality of connecting gold fingers of the FFC flat cable are connected to the PCB board, so that, compared with the existing FFC integrated busbar, the connector and the corresponding wire are not needed to be arranged, the cost is reduced, the assembly process of the connector is reduced due to the absence of the connector, the assembly efficiency is improved, and the production cost is reduced.

[0017] Since the FFC flat cable is arranged on the bracket, and the PCB board is arranged at the end of the bracket, the overall structure is compact, and interference between the PCB board and the FFC flat cable is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a top view of the integrated busbar adopting the flexible flat cable of the embodiment;

[0019] Figure 2 It is a perspective exploded structural schematic view of the integrated busbar adopting the flexible flat cable of Figure 1

[0020] Bracket 10; second mounting groove 11;

[0021] Busbar 20; busbar 21;

[0022] FFC flat cable 30; collection branch 31; connecting gold finger 32; bending step 33;

[0023] PCB board 40;

[0024] Nickel sheet 50. DETAILED DESCRIPTION

[0025] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0026] ​An integrated busbar using a flexible flat cable, see Figures 1-2 , comprising a bracket 10 and a busbar 20, a FFC flat cable 30 and a PCB board 40 arranged on the bracket 10, the busbar 20 comprises a plurality of busbars 21, the FFC flat cable 30 is provided with a plurality of collection branches 31, and one collection branch 31 collects signals of one busbar 21.

[0027] Wherein, the end of the FFC flat cable 30 is provided with a plurality of connection gold fingers 32, the number of the connection gold fingers 32 is consistent with the flat wires, specifically, a plurality of flat wires are punched after processing with a PET film to expose the end wires to form the connection gold fingers 32. The PCB board 40 is fixed to the end of the bracket 10, and the plurality of connection gold fingers 32 are connected to the PCB board 40, specifically, the plurality of connection gold fingers 32 are welded and fixed to the PCB board 40 through a Hot-bar process. The PCB board 40 is provided with electronic components for monitoring and monitoring collected data, including BMS chips, resistors, capacitors and other components. The above fixes the end of the PCB board 40 to the bracket 10, and the plurality of connection gold fingers 32 of the FFC flat cable 30 are connected to the PCB board 40, so that compared with the existing FFC integrated busbar, no connector and corresponding wiring are required, thereby reducing the cost; since the connector is omitted, the assembly process of the connector is reduced, the assembly efficiency is improved, and the production cost is reduced. Since the FFC flat cable 30 is arranged in an array on the bracket 10, and the PCB board 40 is arranged at the end of the bracket 10, the overall structure is compact, and interference between the PCB board 40 and the FFC flat cable 30 is also avoided.

[0028] In the embodiment, after the PCB board 40 is mounted on the bracket 10, the PCB board 40 protrudes from the bracket 10, in order to more conveniently connect the FFC flat cable 30 to the PCB board 40 and ensure the reliability after connection, the position of the FFC flat cable 30 close to the PCB board 40 is provided with a Z-shaped bending step 33, the height of the bending step 33 is adapted to the thickness of the PCB board 40, for example, the plurality of connection gold fingers 32 can be placed flat on the PCB board 40 after the FFC flat cable 30 is bent, thereby avoiding the problem that the FFC flat cable 30 is not fixed and the connection reliability is poor at the corner position of the PCB board 40, and also avoiding the problem that the FFC flat cable 30 is pressed at the corner position of the PCB board 40, thereby causing the flat cable to be pulled and affecting the connection reliability.

[0029] In other embodiments, the bracket 10 is provided with a first mounting groove, the PCB board 40 is arranged in the first mounting groove, the PCB board 40 is mounted in the first mounting groove, and the bottom of the FFC flat cable 30 is in contact with the top surface of the PCB board 40, which can ensure the connection reliability of the connection gold fingers 32 and the PCB board 40. In addition, since the FFC flat cable 30 can be directly placed on the PCB board 40, it does not need to be bent, thereby reducing the processing procedure and improving the processing efficiency.

[0030] In the existing integrated busbar, the length of the support 10 is adapted to the busbar 20, and the end of the support 10 does not extend outward in order to ensure compact structure. After the FFC flat cable 30 collects the busbar 21 at the end, the space between the connecting gold finger 32 and the end of the support 10 is small, and in order to mount the PCB board 40 on the support 10 as much as possible, the length of the PCB board 40 extending out of the support 10 is reduced, which affects the assembly of the integrated busbar, and the PCB board 40 has a double-sided panel structure or a multi-layer panel structure.

[0031] In the embodiment, a plurality of fuses are arranged on the PCB board 40, each connecting gold finger 32 is in conduction with a fuse, and thus when the current of the FFC flat cable 30 is too large, the fuse is fused to protect the battery module. Each component is connected through etched lines, and the PCB board 40 is coated with green oil to meet the insulation voltage requirement.

[0032] In the embodiment, the welding position of the connecting gold finger 32 and the PCB board 40 is coated with protective glue, which protects the welding position and greatly relieves the problem of copper wire oxidation.

[0033] In the embodiment, a plurality of second mounting grooves 11 for mounting the busbar 21 are arranged on the support 10, one busbar 21 is mounted in one second mounting groove 11, the busbar 21 is connected with a nickel sheet 50, and one collection branch 31 is connected to the corresponding nickel sheet 50.

[0034] In the embodiment, the collection branch 31 is wound with a Mylar film to prevent the collection branch 31 from being torn.

[0035] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. An integrated busbar using flexible flat cables, characterized in that: The system includes a bracket and a busbar, an FFC cable, and a PCB board mounted on the bracket. The busbar includes multiple bus components, and the FFC cable has multiple acquisition branches, with each acquisition branch acquiring signals from one bus component. The FFC cable has multiple gold fingers at its end, and the PCB board fixes the end of the bracket, with the multiple gold fingers connected to the PCB board. The PCB board is equipped with electronic components for monitoring and collecting data.

2. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The PCB board has a double-sided or multi-layer structure.

3. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The FFC cable has a Z-shaped bend step near the PCB board, and the height of the bend step is adapted to the thickness of the PCB board.

4. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The bracket is provided with a first mounting groove, the PCB board is placed in the first mounting groove, and the bottom of the FFC cable is in contact with the top surface of the PCB board.

5. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The PCB board has multiple fuses, and each gold finger is connected to a fuse.

6. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The multiple connecting gold fingers are soldered and fixed to the PCB board using a hot-bar process.

7. The integrated busbar using flexible flat cables according to claim 6, characterized in that: The soldering points connecting the gold fingers to the PCB board are coated with protective adhesive.

8. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The bracket is provided with multiple second mounting slots for installing manifolds. One manifold is installed in one second mounting slot. A nickel plate is connected to the manifold, and a collection branch is connected to a corresponding nickel plate.

9. The integrated busbar using flexible flat cables according to claim 1, characterized in that: The collection branch is wrapped with a Mylar membrane.

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