CN218471609U

CN218471609U - Fuse structure applied to FFC

Info

Publication number: CN218471609U
Application number: CN202222337229.7U
Authority: CN
Inventors: 阳中强; 王明
Original assignee: Shenzhen Zhizhen Precision Co ltd
Current assignee: Shenzhen Zhizhen Precision Co ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-02-10
Anticipated expiration: 2032-09-02

Abstract

The utility model relates to the technical field of fuses, in particular to a fuse structure applied to an FFC (flexible flat cable), which comprises an FFC wire rod, wherein a single PIN-belt fuse component and a double PIN-belt fuse component with independent fuse structures are arranged on the FFC wire rod; the fuse structure applied to the FFC avoids the situation that the FFC wire cannot be scrapped due to the fact that the fuse position is overlapped with the distributing position and the fuse wire is poor, and can replace the fuse structure in the PCB of the FPC and the BMS end. This fuse structure is used in a flexible way, and not influenced by FFC separated time position, can plant the fuse that originally uses FFC in FPC and BMS end PCB board and do on PCB or FPC, the nickel piece structural weld of rethread with the fuse, make this fuse structure weld to the FFC on line with the mode of single part, in case the fuse blows off the back in the use, only need to change the nickel piece subassembly that has the fuse and the aluminium row or the copper bar that correspond can, it is with low costs to change the nickel piece subassembly, the product loss rate in the use has been reduced.

Description

Fuse structure applied to FFC

Technical Field

The utility model relates to a fuse technical field specifically is a be applied to fuse structure on FFC.

Background

FFC flexible flat cable is one kind with PET insulating material and extremely thin tinned flat copper line, through the novel data cable that high-tech automation equipment production line pressfitting formed, has advantages such as soft, bending at will folding, thickness is thin, small, connect simple, dismantle convenient, the easy electromagnetic shield of solving.

At present, the fuse on the FFC adopts a multi-mode production mode in the processing process, all designed fuses are concentrated in a certain range, a die is used for carrying out die punching processing on a copper wire, and then an insulating film is used for carrying out hot bonding on the surface to manufacture and mold. When a certain fuse is damaged or has other quality problems in the existing FFC production process, the whole line needs to be scrapped, the risk of fuse cracking or wire breaking can be caused when the fuse is bent in the processing process, in addition, if reinforcing plates are additionally attached to the surfaces of insulating films on two sides of the fuse, the fuse can not be normally separated due to the fact that the reinforcing plates are hard in texture, and the fuse scheme cannot be implemented.

In addition, the fuses on the existing Flexible Printed Circuit (FPC) are all made inside the whole wire, and because all the fuses are in the same area, when the fuses and the branching positions are overlapped, the branching position generates tensile force on the fuses, and if a certain fuse in the wire has a quality problem, the whole wire needs to be scrapped.

In addition, once one of the fuses in the Printed Circuit Board (PCB) of the BMS is burned off, the entire PCB needs to be replaced, and the FFC needs to be replaced. Therefore, the rejection rate of the wire rod can be reduced in the production and use processes. In view of this, we propose a fuse structure applied to the FFC.

SUMMERY OF THE UTILITY MODEL

In order to make up for above not enough, the utility model provides a be applied to fuse structure on FFC.

The technical scheme of the utility model is that:

a fuse structure applied to an FFC (flexible flat cable) comprises an FFC wire, wherein a single PIN-band fuse component and a double PIN-band fuse component with independent fuse structures are arranged on the FFC wire;

the FFC wire rod is not internally provided with a first fuse, and the FFC wire rod is fixedly welded with the single PIN-belt fuse component and the double PIN-belt fuse component.

Preferably, the FFC wire includes a first conductor capable of performing a conductive transmission function, and an upper insulating film and a lower insulating film for performing an insulating function are fixedly connected to upper and lower sides of the first conductor, respectively.

Preferably, a plurality of branching positions for line body distribution are arranged at the internal insulation position of the FFC wire, and a first single PIN signal acquisition end nickel sheet and a first double PIN signal acquisition end nickel sheet are respectively and fixedly welded at the bent signal acquisition end of the FFC wire.

Preferably, the single PIN area fuse subassembly includes first nickel piece, fixed welding has first circuit board on the first nickel piece, first circuit board is PCB board or FPC board.

Preferably, a fourth fuse is arranged inside the first circuit board, a second bonding pad is fixedly welded on the first circuit board, and the second bonding pad and the first single PIN signal acquisition end nickel sheet are fixedly welded.

Preferably, the double-PIN fuse component comprises a second nickel sheet, a second circuit board is fixedly connected to the second nickel sheet, and the second circuit board is a PCB or an FPC.

Preferably, a fifth fuse is arranged inside the second circuit board, a third bonding pad is fixedly welded on the second circuit board, and the third bonding pad is fixedly welded with the first double PIN signal acquisition end nickel sheet.

Compared with the prior art, the beneficial effects of the utility model are that:

the fuse structure applied to the FFC can avoid the situation that the FFC wire cannot be implemented and the FFC wire generated due to poor fuse is scrapped when the fuse position is overlapped with the branching position in the FFC wire production process, and can replace the fuse structure in the PCB of the FPC and the BMS terminal. This fuse structure uses in a flexible way, and not influenced by FFC separated time position, this fuse structure can be with using FFC originally, the fuse in FPC and BMS end PCB board is planted and is done on PCB or FPC, the nickel plate structural weld that the rethread has the fuse, make this fuse structure weld to the FFC line with the mode of single part, in case the fuse blows the back in the use, only need to change the nickel plate subassembly that has the fuse and the aluminium row or the copper bar that corresponds can, it is with low costs to change the nickel plate subassembly, change simple process, the product loss rate in the use has also been reduced.

Drawings

FIG. 1 is a schematic diagram of a fuse processing structure on a conventional FFC;

FIG. 2 is a schematic diagram of the location of a fuse reinforcement plate on a conventional FFC;

FIG. 3 is a diagram of a fuse structure on a conventional FPC;

FIG. 4 is a schematic diagram of a fuse connection on a conventional PCB;

FIG. 5 is a structural diagram of the single PIN fuse assembly of the present invention;

FIG. 6 is a structural diagram of the double PIN fuse assembly of the present invention;

FIG. 7 is a diagram of the structure of the fuse of the present invention;

fig. 8 is a schematic diagram of the fuse connection of the present invention.

The meaning of the individual reference symbols in the figures is:

10. an FFC wire; 11. an upper insulating film; 12. a lower insulating film; 13. a first conductor; 14. a first fuse; 15. a branching position; 16. a first single PIN signal acquisition terminal nickel sheet; 17. a first double PIN signal acquisition end nickel sheet; 18. a reinforcing plate; 20. FPC wire rod;

21. an upper PI insulating film; 22. a lower PI insulating film; 23. a second conductor; 24. a second fuse; 25. a second single PIN signal acquisition terminal nickel sheet; 26. a second double PIN signal acquisition terminal nickel sheet;

30. a PCB board; 31. a first pad; 32. a welding area; 33. a third fuse; 34. a connector;

40. a single PIN band fuse assembly; 41. a first nickel plate; 42. a first circuit board; 43. a fourth fuse; 44. a second pad;

50. a double PIN fused component; 51. a second nickel plate; 52. a second circuit board; 53. a fifth fuse; 54. and a third bonding pad.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-8, the present invention details the above technical solution by the following embodiments:

a fuse structure applied to an FFC comprises an FFC wire 10, wherein a single PIN belt fuse component 40 and a double PIN belt fuse component 50 with independent fuse structures are arranged on the FFC wire 10;

the first fuse 14 is not arranged in the FFC wire 10, and the FFC wire 10 is fixedly welded with the single PIN band fuse assembly 40 and the double PIN band fuse assembly 50.

The FFC wire 10 comprises a first conductor 13 which can play a role in conducting and transmitting electricity, and an upper insulating film 11 and a lower insulating film 12 which play an insulating role are fixedly connected to the upper side and the lower side of the first conductor 13 respectively to play an insulating protection role.

The FFC wire 10 is internally provided with a plurality of branching positions 15 for wire body distribution at an insulation position, and a first single PIN signal acquisition end nickel sheet 16 and a first double PIN signal acquisition end nickel sheet 17 are respectively fixedly welded at a bent signal acquisition end of the FFC wire 10 and can be used as a connecting conductor.

It is worth noting that, as shown in fig. 1 and fig. 2, in the prior art, the first fuse 14 is disposed inside the FFC wire 10, and the reinforcing plate 18 is fixedly mounted at the outer insulating layer, the fuse overlaps the branching position 15, a tensile force is generated during branching processing, and there is a risk of causing a crack or a broken line to the first fuse 14 when bending in the processing process, and the reinforcing plate 18 can prevent the first fuse 14 from being cracked and broken due to an external force, but the branching position 15 cannot be implemented due to the fact that the reinforcing plate 18 is hard and cannot normally branch, and the first fuse 14 is not disposed inside the new FFC wire 10, so that the crack and the broken line can be avoided.

The single-PIN fuse assembly 40 comprises a first nickel sheet 41, a first circuit board 42 is fixedly welded on the first nickel sheet 41, the first circuit board 42 is a PCB or an FPC, a fourth fuse 43 is arranged inside the first circuit board 42, a second bonding pad 44 is fixedly welded on the first circuit board 42, the second bonding pad 44 is fixedly welded with a first single-PIN signal acquisition end nickel sheet 16, the double-PIN fuse assembly 50 comprises a second nickel sheet 51, a second circuit board 52 is fixedly connected to the second nickel sheet 51, and the second circuit board 52 is a PCB or an FPC.

The fifth fuse 53 is arranged in the second circuit board 52, the third bonding pad 54 is fixedly welded on the second circuit board 52, the third bonding pad 54 and the first double-PIN signal acquisition terminal nickel sheet 17 are fixedly welded, the single-PIN fuse component 40 and the double-PIN fuse component 50 can be used as parts, the single fuse can be damaged and replaced, the welding process is simple to replace, and the product loss rate is reduced.

It should be explained that fig. 3 is a structure diagram of a fuse on a conventional FPC, the structure includes a second conductor 23, two sides of the second conductor 23 are fixedly connected with an upper PI insulating film 21 and a lower PI insulating film 22, a second fuse 24 is formed by etching the second conductor 23 at one time, and two sides of the second fuse form an integral structure with a second single PIN signal acquisition end nickel sheet 25 and a second double PIN signal acquisition end nickel sheet 26 which are welded, so long as there is a single fuse failure in the FPC wire 20, the whole wire is to be scrapped, parts cannot be replaced, and the damage rate is high;

as shown in fig. 4, the conventional PCB 30 includes a plurality of first pads 31 for connection, a connector 34 is disposed on one side of the first pads 31, and a third fuse 33 is fixedly welded on the other side of the first pads 31, the third fuse 33 is connected to the FFC wire 10 by a bonding pad 32, and the entire PCB 30 and the wire are discarded as long as the PCB 30 is defective by individual fuses.

The fuse structure applied to the FFC in the embodiment, the single PIN fuse component 40 and the double PIN fuse component 50 are fixedly welded on the FFC wire 10 without the fuse, the branching position 15 inside the FFC wire 10 in the mode is not limited, meanwhile, when a certain fuse in the single PIN fuse component 40 and the double PIN fuse component 50 is poor, the whole fixedly welded FFC wire 10 does not need to be scrapped, the single PIN fuse component 40 and the double PIN fuse component 50 serving as parts can be replaced, and the fuse is not arranged inside the FFC wire 10, so that the scrapped condition of the FFC wire caused by the poor fuse is reduced, and the repair cost can be reduced comprehensively.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A fuse structure applied to an FFC, comprising an FFC wire (10), characterized in that: the FFC wire (10) is provided with a single PIN belt fuse component (40) and a double PIN belt fuse component (50) which are provided with independent fuse structures;

the FFC wire (10) is not provided with a first fuse (14), and the FFC wire (10) is fixedly welded with the single PIN-band fuse component (40) and the double PIN-band fuse component (50).

2. The fuse structure applied to an FFC of claim 1, wherein: the FFC wire (10) comprises a first conductor (13) capable of conducting and transmitting electricity, wherein an upper insulating film (11) and a lower insulating film (12) which are used for insulating are fixedly connected to the upper side and the lower side of the first conductor (13) respectively.

3. The fuse structure applied to an FFC according to claim 2, wherein: a plurality of branching positions (15) for distributing the wire body are arranged at the insulating position inside the FFC wire (10), and a first single PIN signal acquisition end nickel sheet (16) and a first double PIN signal acquisition end nickel sheet (17) are fixedly welded at the bent signal acquisition end of the FFC wire (10) respectively.

4. The fuse structure applied to an FFC of claim 3, wherein: the single PIN area fuse subassembly (40) includes first nickel piece (41), fixed welding has first circuit board (42) on first nickel piece (41), first circuit board (42) are PCB board or FPC board.

5. The fuse structure applied to an FFC of claim 4, wherein: the first circuit board (42) is internally provided with a fourth fuse (43), a second bonding pad (44) is fixedly welded on the first circuit board (42), and the second bonding pad (44) is fixedly welded with the first single PIN signal acquisition end nickel sheet (16).

6. The fuse structure applied to an FFC of claim 3, wherein: the double-PIN fuse assembly (50) comprises a second nickel sheet (51), a second circuit board (52) is fixedly connected to the second nickel sheet (51), and the second circuit board (52) is a PCB or FPC board.

7. The fuse structure applied to an FFC of claim 6, wherein: the second circuit board (52) is internally provided with a fifth fuse (53), a third bonding pad (54) is fixedly welded on the second circuit board (52), and the third bonding pad (54) is fixedly welded with the first double PIN signal acquisition end nickel sheet (17).