CN208754586U

CN208754586U - Lightweight signal acquisition FPC for power battery

Info

Publication number: CN208754586U
Application number: CN201820673193.0U
Authority: CN
Inventors: 李美菊; 何坤; 黄小辉
Original assignee: Dongguan Guixiang Insulation Material Co Ltd
Current assignee: Dongguan Guixiang Insulation Material Co Ltd
Priority date: 2018-05-08
Filing date: 2018-05-08
Publication date: 2019-04-16
Anticipated expiration: 2028-05-08

Abstract

The utility model discloses a kind of lightweight signal acquisition FPC for power battery, it is a frivolous strip FPC, a plane of the FPC is equipped with the conducting wire of gap arrangement, the head end of each conducting wire FPC first end proper alignment and be connected with electric connector, the end of each conducting wire extends to the direction away from first end and is connected on temperature sampling pad or voltage sample pad, the temperature sampling pad and voltage sample pad are arranged in the two sides edge placement of FPC at interval of a distance, it can automate and realize being bonded between each pad and power battery, effectively improve production efficiency, speed is faster, it is not easy misconnection and misses line, improve the quality of power battery.In short, by component in power battery PACK carry out lightweight with can automated production and this FPC that carries out is designed, realize that PACK technology is currently carried out toward promoting energy density and promote the group automated production of PACK mould.

Description

Lightweight signal acquisition FPC for power battery

Technical field

The utility model relates to power battery field technology, refers in particular to a kind of lightweight signal for power battery and adopt Collect FPC.

Background technique

Each position is believed in current battery case in the case in order to monitor the performance of each battery core for battery core distribution in PACK Number line mostly realizes that each battery core requires 1 signal line and is connected to the acquisition of BMS control system using many and diverse harness or plate Temperature and voltage, thus will lead to and be covered with harness in case, and cause assembling difficult, it is not easy to realize automatic assembling, connect simultaneously Harness also easy wrong.

Utility model content

In view of this, the utility model is in view of the existing deficiencies of the prior art, main purpose is to provide a kind of for moving The lightweight signal acquisition FPC of power battery, the mode of connection for replacing tradition many and diverse, and be routed neatly, it is lightening, it can be achieved that certainly Dynamic metaplasia produces, thus overcome the deficiencies in the prior art.

To achieve the above object, the utility model is using following technical solution:

A kind of lightweight signal acquisition FPC for power battery is a plane of frivolous strip a FPC, the FPC It is equipped with the conducting wire of gap arrangement, the first end proper alignment and and electric connector of the head end of each conducting wire in FPC Conducting, the end of each conducting wire extend to the direction away from first end and are connected to temperature sampling pad or voltage sample weldering On disk, the temperature sampling pad and voltage sample pad are arranged in the two sides edge placement of FPC at interval of a distance.

The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology Scheme is it is found that utilize the soft row of FPC() it is routed, the conducting wire one by one of all separation of tradition is concentrated in together, is routed Neatly, production is easy.In addition, temperature sampling pad and voltage sample pad are set directly on FPC, it is each that realization can be automated Being bonded between pad and power battery, effectively improves production efficiency, and speed faster, is not easy misconnection and misses line, improve power The quality of battery.In short, by component in power battery PACK carry out lightweight with can automated production and carry out this Kind FPC design realizes that PACK technology is currently carried out toward promotion energy density with the group automated production of PACK mould is promoted.

For the structure feature and effect for more clearly illustrating the utility model, come with reference to the accompanying drawing with specific embodiment pair The utility model is described in detail.

Detailed description of the invention

Fig. 1 is the FPC front schematic view of the embodiment of the utility model.

Fig. 2 is the FPC schematic rear view of the embodiment of the utility model.

Fig. 3 is the enlarged drawing in Fig. 1 at A.

Fig. 4 is the enlarged drawing in Fig. 1 at B.

Fig. 5 is the FPC sectional structure chart of the embodiment of the utility model.

Fig. 6 is the schematic diagram of the embodiment connector welding position of the utility model.

Fig. 7 is the interface diagram of the embodiment connector of the utility model.

Description of drawing identification:

10, FPC 101, adhesive layer

102, the first PI film layer 103, the first epoxy resin layer

104, copper foil base material layer 105, the second epoxy resin layer

106, the 2nd PI film layer 11, conducting wire

12, first end 13, electric connector

14, temperature sampling pad 15, voltage sample pad

16, fuse 17, location hole

18, position 19, net region are avoided.

Specific embodiment

It please refers to shown in Fig. 1 to Fig. 7, it to be a kind of that show the specific structures of the preferred embodiment of the utility model It is the FPC 10 of the tool regular shape of a frivolous strip for the lightweight signal acquisition FPC of power battery, the FPC's 10 One plane is equipped with the conducting wire 11 of gap arrangement, and first end 12 of the head end of each conducting wire 11 in FPC 10 is neatly arranged It arranges and is connected with electric connector 13, the end of each conducting wire 11 extends to the direction away from first end 12 and is connected to temperature On degree sampling pad 14 or voltage sample pad 15, the temperature sampling pad 14 and voltage sample pad 15 at interval of one section away from From the two sides edge placement for being arranged in FPC 10.There is flexibility using this FPC 10, and can be by all routes all It integrating, light weight, material is thin, and wiring is clean and tidy, and it is easy to assembly, the mode of conventionally employed a plurality of conducting wire connection can be replaced, Solve the problems such as traditional wiring is mixed and disorderly, assembly is inconvenient, and maintenance is difficult.

Wherein, the conducting wire 11 is directly connected with temperature sampling pad 14, which is with double Chip architecture has positive and negative anodes, carries out after being bonded welding with the corresponding test point on power battery, be capable of forming current loop, Convenient for temperature acquisition.The voltage sample pad 15 is single chip architecture, is connected between conducting wire 11 and temperature sampling pad 14 Fuse 16 is connect, the quantity of fuse 16 there are 2, a preparation and a use.By this design, each circuit, which need to meet, continues working electricity Flow 1A, blowout current 2A.

The FPC 10 is equipped with multiple location holes 17, which runs through lower surface from the upper surface of FPC 10, respectively The positional shift of the corresponding location hole 17 of conducting wire 11 forms evacuation position 18.FPC 10 can be fixed on using location hole 17 dynamic The side of power battery facilitates the temperature sampling pad 14 on FPC 10 and the detection corresponding with power battery of voltage sample pad 15 Position is bonded.In the present embodiment, the temperature sampling pad 14 and voltage sample pad 15 are the nickel of SMT patch form The bottom surface of piece, the SMT patch has tin coating, is welded by tin coating and flexible board.When production, the pad on FPC 10 is used Be surface-treated OSP+ tin cream+nickel sheet, patch reflow soldering and formed, voltage sample pad 15 is 4mm*8mm after molding, and temperature adopts Sample pad 14 is 4mm*8mm, also requires bond pad surface purity requirements≤10RFU, pad edge residue glue width requirement≤ 0.3mm。

As shown in figure 5, the FPC 10 is multilayered structure, by bottom to top arrangement successively are as follows: adhesive layer 101, the One PI film layer 102, the first epoxy resin layer 103, copper foil base material layer 104, the second epoxy resin layer 105, the 2nd PI film layer 106. It is welded by soft row by nickel plating copper base and copper base, PI film coats, so that conducting wire and the pressure resistance of outer layer insulation 2500VDC, insulate pressure resistance 500VDC between conducting wire and conducting wire；Resisting salt fog corrosion, after salt spray test, nickel sheet is without damaged, whole without tight Discoloration or extremely slight loss of gloss again, finally overleaf whole gum, 90 degree of peeling force > 100N/100mm of gum, when use, utilize Gum is sticked to the position for wiring beside power battery.

The vacancy on the surface of the FPC 10 is equipped with net region 19, so that product monnolithic case is beautiful, it is full.Such as figure Shown in 6 and Fig. 7, the electric connector 13 is the direct insertion not bodyguard connector with the total 24PIN terminal of two rows, wherein being located at The 23PIN and 24PIN terminal at both ends are not used, and FPC 10 is whole to be made of 3 parts, temperature acquisition part+voltage acquisition at 3 Part, 3 parts pass through bonding welding.After the completion of production, need at least to meet the following conditions: product by various tests Meeting 2 standard of IPC-6013 CLASS, all material meets ROHS and UL 94-VO authentication requesting, operating temperature -40-125, Surfacecti proteon require patch preservative film 0.05mm, 100% conduction detection of route, no short circuit without open circuit (between arbitrary neighborhood Pin needle, and Between Pin needle and female copper base), all edges need rounded corner.

The above descriptions are merely preferred embodiments of the present invention, not makees to the technical scope of the utility model Any restrictions, therefore any trickle amendment made by the above technical examples according to the technical essence of the present invention, equivalent change Change and modify, is still within the scope of the technical solutions of the present invention.

Claims

1. a kind of lightweight signal acquisition FPC for power battery, it is characterised in that: be a frivolous strip FPC(10), it should A plane of FPC is equipped with the conducting wire (11) of gap arrangement, and first end (12) of the head end of each conducting wire in FPC is whole It arranges and is connected with electric connector (13) together, the end of each conducting wire extends and connects to the direction away from first end (12) Be connected on temperature sampling pad (14) or voltage sample pad (15), the temperature sampling pad and voltage sample pad at interval of A distance is arranged in the two sides edge placement of FPC.

2. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: the temperature Sampling pad (14) is with double-sheet arrangement, and the voltage sample pad (15) is single chip architecture, and the conducting wire (11) is straight It connects and is connected with temperature sampling pad (14), be connected to fuse between the conducting wire (11) and temperature sampling pad (14) (16), the quantity of fuse (16) has 2, a preparation and a use.

3. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: the FPC (10) multiple location holes (17) are equipped with, which runs through lower surface, each conducting wire from the upper surface of FPC(10) (11) positional shift of corresponding location hole (17) forms evacuation position (18).

4. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: the temperature Sampling pad (14) and voltage sample pad (15) are the nickel sheet of SMT patch form, and the bottom surface of the SMT patch has tin plating Layer, passes through tin coating and FPC(10) welding.

5. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: the FPC (10) be multilayered structure, by bottom to top arrangement successively are as follows: adhesive layer (101), the first PI film layer (102), the first epoxy Resin layer (103), copper foil base material layer (104), the second epoxy resin layer (105), the 2nd PI film layer (106).

6. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: the FPC (10) vacancy on surface is equipped with net region (19).

7. the lightweight signal acquisition FPC according to claim 1 for power battery, it is characterised in that: described to be electrically connected Connecing device (13) is the direct insertion not bodyguard connector with the total 24PIN terminal of two rows.