CN213460155U

CN213460155U - FFC connector

Info

Publication number: CN213460155U
Application number: CN202022237894.XU
Authority: CN
Inventors: 孔祥超
Original assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Current assignee: AVIC Shenyang Xinghua Aero Electrical Appliance Co Ltd
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-06-15
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses an FFC connector, which comprises a socket end and a plug end spliced with the socket end, wherein the socket end comprises a contact pin insulator and a contact pin; the plug end includes a socket insulator, a socket assembly. When the contact pin insulator is connected with the jack insulator in an inserting mode, the contact pin is inserted into the jack component, the groove side wall of the lower end face of the contact pin insulator is sleeved on the side wall of the jack insulator, and the groove side wall is movably connected with the side wall through the self-locking structure. The utility model has the advantages that: the socket end and the plug end of the FFC connector are provided with self-locking structures, so that the socket end and the plug end can be quickly self-locked and are stable and anti-loose; and in the design of the contact pin and the jack, the contact of the circular pin hole is adopted, so that the reliable electrical connection is ensured, and the mechanical environment resistance of the product is improved.

Description

FFC connector

Technical Field

The utility model relates to an electric connector technical field, concretely relates to FFC connector.

Background

Flexible Flat Cable (Flexible Flat Cable), FFC for short is one kind with PET insulating material and extremely thin tin-plated Flat copper line, through the novel data Cable that high-tech automation equipment production line pressfitting formed, has advantages such as softness, bending folding at will, thickness are thin, small, connect simply, dismantle the convenience, solve electromagnetic shield (EMI) easily.

The FFC flat cable and the circuit board need to be connected through the FFC connector, namely the FFC flat cable and the FFC connector need to be connected and assembled. The FFC connector in the prior art generally comprises a socket end and a plug end, and has the problems of poor mechanical environment resistance, unstable structure and higher investment cost of stamping dies and plastic pressing dies of the socket end and the plug end; therefore, in order to solve the above problems, it is desirable to provide an FFC connector that has a stable structure, a firm connection, and a low cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a FFC connector with quick auto-lock, firm locking, reliable connection, low cost under vibration and impact condition.

In order to achieve the above object, the utility model adopts the following technical scheme: the plug comprises a socket end and a plug end which is spliced with the socket end, wherein the socket end comprises a contact pin insulator and a contact pin; the plug end includes a jack insulator, a jack assembly;

the contact pin insulator is a cuboid and comprises an upper end surface and a lower end surface, the lower end surface is of a groove structure and is provided with a plurality of hole cavities A which are arranged at intervals, contact pins are connected in the hole cavities A in an interference mode, and the contact pins penetrate through the contact pin insulator;

the jack insulator is a cuboid and comprises an upper end surface and a lower end surface, the upper end surface is a plugging end, the lower end surface is an FFC flat cable connecting end, a hole cavity B corresponding to the hole cavity A is arranged on the end surface of the jack insulator, a jack component is connected in the hole cavity B in an interference mode, the upper end of the jack component is used for inserting a contact pin, and the lower end of the jack component is used for FFC flat cable connection;

when the contact pin insulator is connected with the jack insulator in an inserting mode, the contact pin is inserted into the jack component, the groove side wall of the lower end face of the contact pin insulator is sleeved on the side wall of the jack insulator, and the groove side wall is movably connected with the side wall through the self-locking structure.

The self-locking structure comprises a key groove with a downward opening formed in the side wall of a groove of the inserting end of the pin insulator and an inserting key protruding upwards formed in the side wall of the corresponding jack insulator, the lower end face of the key groove is flush with the end face of the side wall of the groove, the upper end face of the inserting key is flush with the end face of the inserting end of the jack insulator, and the movable connection of the socket end and the plug end is achieved through the interference fit of the key groove and the inserting key.

The middle parts of the two side walls of the key groove are provided with arc-shaped grooves which are arranged on the same horizontal line and are sunken in the side walls, and the side walls of the inserted key are correspondingly provided with outwards-protruded supporting lugs.

And two sides of the key groove are provided with arch grooves with downward openings for increasing the elasticity of the opening of the key groove.

The periphery of the middle part of the contact pin is provided with an annular barb, the barb and the contact pin are of an integrally formed structure, the interference connection firmness of the contact pin and the hole cavity A is guaranteed, and the barb is set to be 1-2 circles.

The pin insulator and the jack insulator are both of plastic mold plastic-compression integrated structures.

The cross sections of the hole cavity A, the hole cavity B and the contact pin are circular, and circular hole pin structures are adopted for contact.

The self-locking structure is provided with 1-2 groups.

Use the utility model discloses a beneficial effect is:

1. the utility model realizes the quick self-locking of the socket end and the plug end by arranging the self-locking structure at the socket end and the plug end of the FFC connector, and is stable and anti-loose; and in the design of the contact pin and the jack, the contact of the circular pin hole is adopted, so that the reliable electrical connection is ensured, and the mechanical environment resistance of the product is improved.

2. The utility model adopts plastic moulds for the socket end and the plug end, and the plastic moulds are molded integrally, thereby greatly reducing the product cost; and the product adopts interference fit mode to connect in many places at the assembly process, has simplified the assembly process, has improved assembly efficiency.

3. In the aspect of FFC winding displacement use, the color FFC winding displacement is mostly used in the prior art, and the temperature resistance range of the winding displacement is small; and the grey flexible FFC flat cable has good flexibility, can be bent in a variable angle according to the actual space cross-linking requirement, and really realizes signal jumping between different space panels of the PCB inside the case.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the socket end of the present invention.

Fig. 2 is a schematic view of the socket end structure of the present invention.

Fig. 3 is a schematic diagram of the structure of the contact pin of the present invention.

Fig. 4 is a schematic view of the three-dimensional structure of the plug end of the present invention.

Fig. 5 is a schematic diagram of the plug end structure of the present invention.

The reference numerals include:

1 is a pin insulator, 1-1 is a hole cavity A, 1-2 is a pin, 1-3 is a key groove, 1-4 is an arch groove,

1-5 are barbs, and 1-6 are arc grooves;

2 is a jack insulator, 2-1 is a hole cavity B, 2-2 is a jack component, 2-3 is a plug key, and 2-4 is a support lug;

and 3 is FFC flat cable.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in the figure, the utility model discloses a have quick auto-lock, firm locking, reliable connection, low cost's FFC connector under vibration and impact condition.

The plug comprises a socket end and a plug end which is spliced with the socket end, wherein the socket end comprises a contact pin insulator (1) and contact pins (1-2); the plug end comprises a jack insulator (2), a jack component (2-2);

the contact pin insulator (1) is a cuboid and comprises an upper end surface and a lower end surface, the lower end surface is of a groove structure and is provided with a plurality of hole cavities A (1-1) which are arranged at intervals, contact pins (1-2) are connected in the hole cavities A (1-1) in an interference mode, and the contact pins (1-2) penetrate through the contact pin insulator (1);

the jack insulator (2) is a cuboid, the jack insulator (2) comprises an upper end face and a lower end face, the upper end face is a plug end, the lower end face is an FFC flat cable (3) connecting end, a hole cavity B (2-1) corresponding to the hole cavity A (1-1) is arranged on the end face of the jack insulator (2), a jack component (2-2) is connected in the hole cavity B (2-1) in an interference mode, the upper end of the jack component (2-2) is used for inserting the plug pin (1-2), and the lower end of the jack component (2-2) is used for connecting the FFC flat cable (3);

when the contact pin insulator (1) is connected with the jack insulator (2) in an inserting mode, the contact pin (1-2) is inserted into the jack component (2-2), at the moment, the side wall of the groove of the lower end face of the contact pin insulator (1) is sleeved on the side wall of the jack insulator (2), and the side wall of the groove is movably connected with the side wall through a self-locking structure.

The self-locking structure comprises key grooves (1-3) with downward openings formed in the side walls of grooves of the inserting ends of the pin insulators (1) and inserting keys (2-3) protruding upwards and arranged on the corresponding side walls of the jack insulators (2), the lower end faces of the key grooves (1-3) are flush with the end faces of the side walls of the grooves, the upper end faces of the inserting keys (2-3) are flush with the end faces of the inserting ends of the jack insulators (2), and the movable connection of the socket ends and the plug ends is achieved through interference fit of the key grooves (1-3) and the inserting keys (2-3).

The middle parts of the two side walls of the key groove (1-3) are provided with arc-shaped grooves (1-6) which are arranged on the same horizontal line and are sunken in the side walls, and the side walls of the inserted key are correspondingly provided with support lugs (2-4) which are protruded outwards.

Two sides of the key groove (1-3) are provided with arc-shaped grooves (1-4) which are opened downwards and are used for increasing the opening elasticity of the key groove (1-3).

The periphery of the middle part of the contact pin (1-2) is provided with an annular barb (1-5), the barb (1-5) and the contact pin (1-2) are of an integrally formed structure, the interference connection firmness of the contact pin (1-2) and the hole cavity A (1-1) is ensured, and the barb (1-5) is set to be 2 circles.

The pin insulator (1) and the jack insulator (2) are both of plastic mold plastic-compression integrated structure.

The cross sections of the hole cavity A (1-1), the hole cavity B (2-1) and the contact pin (1-2) are circular, and circular hole pin structures are adopted for contact.

The self-locking structure is provided with 1 group.

When the product is actually used, the contact pin adopts a copper alloy machining surface gold-plating treatment mode, the contact pin insulator adopts a black thermoplastic plastic mould to be molded, and the contact pin and the hole cavity of the contact pin insulator are assembled and fixed in an interference fit mode. The jack insulator is formed by plastic molding of a black thermoplastic plastic mold, the FFC flat cable is a finished product outsourcing part, and the gray FFC with a large temperature and wide range is selected as a flexible switching medium. Particularly, the self-locking structure is arranged at the socket end and the plug end of the FFC connector, so that the socket end and the plug end can be quickly self-locked and are stable and anti-loose; and in the design of the contact pin and the jack, the contact of the circular pin hole is adopted, so that the reliable electrical connection is ensured, and the mechanical environment resistance of the product is improved. The mould adopted by the socket end and the plug end is a plastic mould and is molded integrally by plastic compression, so that the product cost is greatly reduced; and the product adopts interference fit mode to connect in many places at the assembly process, has simplified the assembly process, has improved assembly efficiency. In the aspect of FFC winding displacement use, the color FFC winding displacement is mostly used in the prior art, and the temperature resistance range of the winding displacement is small; and the grey flexible FFC flat cable has good flexibility, can be bent in a variable angle according to the actual space cross-linking requirement, and really realizes signal jumping between different space panels of the PCB inside the case.

The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims

1. An FFC connector comprises a socket end and a plug end spliced with the socket end, wherein the socket end comprises a pin insulator and a pin; the plug end includes a jack insulator, a jack assembly; the method is characterized in that:

when the contact pin insulator is connected with the jack insulator in an inserting mode, the contact pin is inserted into the jack component, the groove side wall of the lower end face of the contact pin insulator is sleeved on the side wall of the jack insulator, and the groove side wall is movably connected with the side wall of the jack insulator through the self-locking structure.

2. An FFC connector according to claim 1, wherein: the self-locking structure comprises a key groove with a downward opening formed in the side wall of a groove of the inserting end of the pin insulator and an inserting key protruding upwards formed in the side wall of the corresponding jack insulator, the lower end face of the key groove is flush with the end face of the side wall of the groove, the upper end face of the inserting key is flush with the end face of the inserting end of the jack insulator, and the movable connection of the socket end and the plug end is achieved through the interference fit of the key groove and the inserting key.

3. An FFC connector according to claim 2, wherein: the middle parts of the two side walls of the key groove are provided with arc grooves which are arranged on the same horizontal line and are sunken in the side walls of the key groove, and the side walls of the inserted key are correspondingly provided with arc supporting lugs which are protruded outwards.

4. An FFC connector according to claim 2 or 3, wherein: and two sides of the key groove are provided with arch grooves with downward openings for increasing the elasticity of the opening of the key groove.

5. An FFC connector according to claim 1, wherein: the periphery of the middle part of the contact pin is provided with an annular barb, the barb and the contact pin are of an integrally formed structure, the interference connection firmness of the contact pin and the hole cavity A is guaranteed, and the barb is set to be 1-2 circles.

6. An FFC connector according to claim 1 or 2, wherein: the pin insulator and the jack insulator are both of plastic mold plastic-compression integrated structures.

7. An FFC connector according to claim 5, wherein: the cross sections of the hole cavity A, the hole cavity B and the contact pin are circular, and circular hole pin structures are adopted for contact.

8. An FFC connector according to claim 1, wherein: the self-locking structure is provided with 1-2 groups.