CN220209354U

CN220209354U - Flat cable connector

Info

Publication number: CN220209354U
Application number: CN202320777968.XU
Authority: CN
Inventors: 洪新江; 张颖
Original assignee: Zhejiang Xinfuer Electronics Co ltd
Current assignee: Zhejiang Xinfuer Electronics Co ltd
Priority date: 2023-04-04
Filing date: 2023-04-04
Publication date: 2023-12-19
Anticipated expiration: 2033-04-04

Abstract

The utility model discloses a flat cable connector, which comprises an insulating seat, a pressing plate, a wiring terminal and a grounding terminal, wherein the insulating seat is provided with a plurality of connecting terminals; the upper part of the front end of the insulating seat is provided with a connecting groove; the wiring terminal and the grounding terminal are of an integrated bending forming structure, are inserted into the insulating seat from the rear end, and comprise an elastic conduction section, an inserting locking section and a power connection pin which are sequentially connected from front to back, wherein the elastic conduction section is provided with an arc-shaped contact part formed by upward bending; the insulating seat is provided with a locking socket and a through hole communicated with the upper part of the locking socket, the plugging locking section is tightly plugged in the locking socket, and the elastic conduction section extends into the connecting groove from the through hole. The flat cable connector has reasonable structural design, can ensure that the wiring terminal and the flat cable have good conduction performance through structural optimization, is beneficial to assembly, and has good practicability and popularization.

Description

Flat cable connector

Technical Field

The present utility model relates to an electrical connector, and more particularly, to a flat cable connector.

Background

Each electronic product is required to be miniaturized, thinned and high-performance, and flexible printed circuit boards (namely FPC flat cables) and FPC connectors matched with the flexible printed circuit boards are utilized to reduce space, weight and assembly cost, so that the flexible printed circuit boards are the first choice in industry. The FPC connector disclosed in the patent document CN204668509U comprises a main body plastic part, a lifting cover, a fixing sheet and a plurality of connecting terminals, wherein a plurality of equidistant accommodating grooves are formed in the main body plastic part, the connecting terminals are inserted in the accommodating grooves side by side through the fixing sheet, an inserting surface for inserting an FPC is formed on the end face of the main body plastic part, which faces the accommodating grooves, the lifting cover is rotatably arranged at the inserting surface through protruding columns arranged on two sides, and the distance from the protruding columns to the side face of the lifting cover is smaller than the distance from the protruding columns to the lower side edge of the lifting cover; and chamfer hanging tables for locking the FPC are arranged on two sides of the insertion surface. The FPC connector is limited by the structure of the connecting terminal, the connecting terminal can only be manufactured in a cutting mode, when the connector is connected with an FPC flat cable, the tangent plane of the connecting terminal is contacted with a golden finger on the flat cable, however, due to the fact that the burr point easily appears on the tangent plane when the connecting terminal is manufactured, an effective contact surface is hardly formed between the connecting terminal and the flat cable when the connector is actually installed and used, the resistance value is large, the golden finger on the flat cable is easily scratched by burrs, the conduction performance is further influenced, and the quality improvement of the connector is restricted to a certain extent.

Disclosure of Invention

The utility model aims to provide a flat cable connector with better conduction performance and convenient assembly.

The technical scheme for realizing the aim of the utility model is as follows:

the utility model relates to a flat cable connector, which comprises an insulating seat, a pressing plate, a wiring terminal and a grounding terminal; the upper part of the front end of the insulating seat is provided with a connecting groove, and the pressing plate is used for pressing the flat cable at the connecting groove;

the wiring terminal and the grounding terminal are of an integrated bending forming structure, the rear ends of the wiring terminal and the grounding terminal are inserted into the insulating seat, the wiring terminal comprises an elastic conduction section, an inserting locking section and a power connection pin, the elastic conduction section, the inserting locking section and the power connection pin are sequentially connected from front to back, and the elastic conduction section is provided with an arc-shaped contact part formed by upward bending; the insulation seat is provided with a locking socket and a through hole communicated with the upper part of the locking socket, the plugging locking section is tightly plugged in the locking socket, and the elastic conduction section extends into the connecting groove from the through hole.

In a preferred technical scheme, the part between the arc-shaped contact part and the plugging locking section on the elastic conduction section gradually inclines upwards along the direction from back to front.

In the preferred technical scheme, the terminal groove arranged along the front-rear direction is arranged on the bottom surface in the connecting groove corresponding to each locking socket, the front end part of the elastic conduction section is sunk into the terminal groove, and the high point of the arc-shaped contact part is protruded out of the terminal groove.

In the preferred technical scheme, the power connection pins are bent downwards to be perpendicular to the plugging locking sections.

In the preferred technical scheme, the width of the plugging locking section is larger than that of the elastic conducting section, and the rear end of the plugging locking section is provided with a resisting table at two sides of the power connection pin; the fixing effect is enhanced by increasing the width of the plugging locking section, and the pressure can be applied by the resisting table when the wiring terminal is assembled, so that the assembly is facilitated.

In the preferred technical scheme, grafting locking section bilateral symmetry is equipped with fixed barb and consolidates and inlays the platform, consolidate and inlay the platform and be in fixed barb rear side and consolidate and inlay a platform lateral margin protrusion in the lateral margin of fixed barb the fixed barb with consolidate the front portion that inlays the platform and form the inclined guide face.

In the preferred technical scheme, the grounding terminal comprises a grounding part, a fixing part, a supporting part and a connecting pin, wherein the front end of the grounding part is connected with one side of the front end of the supporting part, the other side of the rear end of the supporting part is connected with the upper side of the fixing part, a fixing slot, a limiting slot and an avoidance opening are formed in the rear end of the insulating seat, the fixing part is in tight fit with the fixing slot and is inserted into the limiting slot, the grounding part extends into the connecting slot from the avoidance opening, and the connecting pin extends out of the insulating seat; the pressing plate is provided with an abutting part which is downward abutted against the grounding part when the pressing plate is at the locking position.

In the preferred technical scheme, the grounding part is a hook structure facing away from the bottom of the connecting groove, and a pressing table suitable for being in abutting connection with the abutting part is formed at the upper end of the grounding part.

In the preferred technical scheme, be equipped with the absorption plane on the clamp plate to set up the bar boss that extends along clamp plate length direction in absorption plane border department.

The utility model has the positive effects that: in the connector, the wiring terminal is processed through a bending molding process, and the surface of the arc-shaped contact part is smooth, so that the arc-shaped contact part can form more reliable contact with the golden finger of the flat cable, the golden finger on the flat cable cannot be damaged, and the rebound resilience of the corresponding part is ensured through the elastic conduction section, thereby ensuring the conduction performance; in addition, when the wiring terminal is inserted into the insulating seat, the elastic conduction section passes through the through hole, so that the plugging locking section is tightly plugged into the locking socket to realize installation, and the assembly is convenient, thereby being beneficial to automatic assembly production.

Drawings

These and/or other aspects, features and advantages of the present disclosure will become more apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic view of a flat cable connector according to the present utility model;

FIG. 2 is an exploded view of the flat cable connector of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is a top view of the terminal of the present utility model;

FIG. 5 is a schematic view of a portion of an insulating base according to the present utility model;

FIG. 6 is a partial schematic view of the flat cable connector of the present utility model with the pressure plate removed;

FIG. 7 is a schematic view of a platen according to the present utility model.

The reference numerals in the drawings are: 1-an insulating base; 11-pressing plates; 12-limit terminals; 13-connecting terminals;

14-a ground terminal; 15-connecting grooves; 16-an elastic conduction section; 17-a plug locking section; 18-connecting pins; 19-arc contact; 20-locking a socket; 21-a through port; 22-terminal grooves; 23-a ground; 24-fixing part; 25-a support; 26-connecting pins; 27-a fixed slot; 28-limit slots;

29-avoiding port; 30-an abutting part; 31-a press table; 32-a stand; 33-fixing barbs; 34-reinforcing the embedding table; 35-adsorption plane; 36-bar-shaped boss.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model.

The flat cable connector in the present embodiment, as shown in fig. 1 to 7, includes an insulating base 1, a pressing plate 11, a limit terminal 12, a connection terminal 13, and a ground terminal 14; the insulation seat 1 front end upper portion is equipped with spread groove 15, spacing terminal 12 and clamp plate 11 spacing connection and can rotate between locking position and unblock position relative insulation seat 1, in stretching into spread groove 15 with the golden finger end of winding displacement when the wiring, can spacing to the winding displacement when clamp plate 11 changes to locking position, release spacing to the winding displacement when clamp plate 11 is in the unblock position, thereby spacing terminal 12 through a row setting is spacing to be connected with clamp plate 11 can provide stable restraining force and holding power for clamp plate 11 along clamp plate length direction, and then make clamp plate 11 can carry out effectual crimping to the winding displacement, and then guarantee the reliability that winding displacement and connector (specifically binding post 13) contacted.

In order to simplify the assembly structure and the production process, as shown in fig. 2 to 5, the connection terminal 13 and the ground terminal 14 are provided in this embodiment as an integral bending structure, the connection terminal 3 and the ground terminal 14 are inserted into the insulating base 1 from the rear end, the connection terminal 13 includes an elastic conduction section 16, an insertion locking section 17 and a power connection pin 18, which are sequentially connected from front to back, and the elastic conduction section 16 has an arc contact portion 19 formed by bending upwards; the insulating seat 1 is provided with a locking socket 20 and a through hole 21 communicated with the upper part of the locking socket 20, the plugging locking section 17 is tightly plugged in the locking socket 20, and the elastic conducting section 16 extends into the connecting groove 15 from the through hole 21; the wiring terminal is processed through a bending molding process, the surface of the arc-shaped contact part 19 is smooth, burrs are not generated, golden fingers on the flat cable cannot be damaged, the arc-shaped contact part 19 can form more reliable contact with the golden fingers of the flat cable, the conduction performance is guaranteed, the rebound resilience of the corresponding part is guaranteed through the elastic conduction section 16, when the wiring terminal 13 is inserted into the insulating seat 1, the elastic conduction section 16 passes through the through hole 21, the plugging locking section 17 is tightly plugged into the locking socket 20, the installation is realized, the assembly is convenient, and the automatic assembly production is facilitated.

In this embodiment, the portion of the elastic conduction section 16 between the arc-shaped contact portion 19 and the plug locking section 17 is gradually inclined upwards in the back-to-front direction, and the rebound resilience of the elastic conduction section 16 is enhanced by the inclined portion, so that the conduction performance is increased.

In a further technical scheme, terminal grooves 22 are formed in the inner bottom surface of the connecting groove 15 at positions corresponding to the locking sockets 20 in the front-rear direction, the front ends of the elastic conducting sections 16 sink into the terminal grooves 22, and the arc-shaped contact parts 19 protrude out of the terminal grooves 22 at high points; in order to further enhance the resilience of the elastic conduction section 16 in actual operation, a supporting leg (not shown) may be further disposed at the front end of the elastic conduction section 16, and when the elastic conduction section 16 is pressed downward by the wire harness, the supporting leg can abut against the inner bottom wall of the terminal slot 22 to perform an elastic supporting function.

As shown in fig. 3, the electrical pins 18 are bent downward to be perpendicular to the plugging locking section 17 in the present embodiment, so that the electrical pins 18 are soldered to the PCB board when the connector is mounted.

Further, as shown in fig. 4, in this embodiment, the width of the plugging locking section 17 is set to be greater than the width of the elastic conducting section 16, so that the strength of the plugging locking section 17 is better, and the fixing effect of the terminal can be ensured, and the rear end of the plugging locking section 17 is provided with the abutment tables 32 at two sides of the power receiving pin 18, so that when the terminal is inserted into the insulating base 1, the external pressure can be applied by the abutment tables 32; in order to further ensure the fixing effect of the connection terminal, the two sides of the plugging locking section 17 are symmetrically provided with a fixing barb 33 and a reinforcing embedding table 34, the reinforcing embedding table 34 is positioned at the rear side of the fixing barb 33, the outer side edge of the reinforcing embedding table 34 protrudes out of the outer side edge of the fixing barb 33 (namely, the two sides form a height difference in the width direction of the plugging locking section 17, L in fig. 4), the fixing barb 33 is inserted into the locking socket 20 to play a retaining role, and the reinforcing embedding table 34 is tightly inserted into the locking notch 20 after the fixing barb 33 so as to further strengthen the connection; in order to reduce the resistance of the plug locking segment 17 when it is inserted into the locking slot 20, inclined guide surfaces are formed at the front of the fixing barb 33 and the reinforcing abutment 34.

In order to adapt to the automatic assembly of the pressing plate 11, in this embodiment, an adsorption plane 35 for sucking by a suction nozzle is provided on the surface of the pressing plate 11, and a bar-shaped boss 36 extending along the length direction of the pressing plate 11 is provided at the edge of the adsorption plane 35, and by the arrangement of the bar-shaped boss 36, the pressing plate 11 can be turned over, and the force can be applied by the bar-shaped boss 36, so that the operation is convenient.

In a further implementation manner of this embodiment, the ground terminal 14 includes a ground portion 23, a fixing portion 24, a supporting portion 25 and a connection pin 26, the front end of the ground portion 23 is connected to one side of the front end of the supporting portion 25, the other side of the rear end of the supporting portion 25 is connected to the upper side of the fixing portion 24, the rear end of the insulating base 1 is provided with a fixing slot 27, a limiting slot 28 and a relief opening 29, the fixing portion 24 is tightly plugged into the fixing slot 27 to fix the ground terminal 14, at least the front end of the supporting portion 25 is plugged into the limiting slot 28 to support and limit the supporting portion 25 so as to prevent bending deformation when the ground portion 23 is pressed, the ground portion 23 is in a hook structure facing away from the bottom of the connecting slot 15, the ground portion 23 passes through the relief opening 29 and stretches into the connecting slot 15 for contacting with a shielding portion on a flat cable, and noise accumulated on a PCB can be introduced into a ground circuit through the contact of the shielding portion on the flat cable when the ground portion 23 is mounted and used; the connecting pins 26 extend out of the insulating base 1 and are used for connecting with a grounding area on the PCB for welding; the pressing plate 11 is provided with a pressing portion 30, and the end of the grounding portion 23 forms a pressing table 31 adapted to be in contact with the pressing portion 30, and the pressing table 31 is pressed downward by the pressing portion 30 to make the grounding portion 23 in good contact with the shielding portion on the flat cable.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While those obvious variations or modifications which come within the spirit of the utility model remain within the scope of the utility model.

Claims

1. A flat cable connector comprises an insulating base (1), a pressing plate (11), a wiring terminal (13) and a grounding terminal (14); the upper part of the front end of the insulating seat (1) is provided with a connecting groove (15), and the pressing plate (11) is used for pressing the flat cable at the connecting groove (15);

the connecting terminal (13) and the grounding terminal (14) are of an integrated bending forming structure, the rear ends of the connecting terminal and the grounding terminal are inserted into the insulating seat (1), the connecting terminal (13) comprises an elastic conduction section (16), an inserting locking section (17) and a power connection pin (18) which are sequentially connected from front to back, and the elastic conduction section (16) is provided with an arc-shaped contact part (19) formed by bending upwards; the insulation seat (1) is provided with a locking socket (20) and a through hole (21) communicated with the upper part of the locking socket (20), the plugging locking section (17) is tightly plugged in the locking socket (20), and the elastic conduction section (16) stretches into the connecting groove (15) from the through hole (21).

2. A flat cable connector according to claim 1, wherein the portion of the resilient conductive section (16) between the arcuate contact portion (19) and the plug locking section (17) is inclined gradually upward in a back-to-front direction.

3. A flat cable connector according to claim 2, wherein a terminal groove (22) provided in the front-rear direction is provided on the inner bottom surface of the connecting groove (15) at a position corresponding to each locking socket (20), the front end portion of the elastic conduction section (16) is sunk into the terminal groove (22), and the arcuate contact portion (19) protrudes from the terminal groove (22) at a high point.

4. A flat cable connector according to claim 1, wherein the electrical pins (18) are bent downwards to be perpendicular to the plug locking section (17).

5. A flat cable connector according to claim 1, wherein the plug locking section (17) has a width larger than the width of the resilient conductive section (16), and wherein the rear end of the plug locking section (17) is provided with abutment means (32) on both sides of the power receiving pin (18).

6. A flat cable connector according to claim 1, wherein the plug-in locking section (17) is symmetrically provided with a fixing barb (33) and a reinforcing insert (34) on both sides, the reinforcing insert (34) is located at the rear side of the fixing barb (33) and the outer side of the reinforcing insert (34) protrudes from the outer side of the fixing barb (33), and inclined guide surfaces are formed at the front parts of the fixing barb (33) and the reinforcing insert (34).

7. The flat cable connector according to claim 1, wherein the grounding terminal (14) comprises a grounding part (23), a fixing part (24), a supporting part (25) and a connecting pin (26), the front end of the grounding part (23) is connected with one side of the front end of the supporting part (25), the other side of the rear end of the supporting part (25) is connected with the upper side of the fixing part (24), a fixing slot (27), a limiting slot (28) and a avoiding opening (29) are arranged at the rear end of the insulating base (1), the fixing part (24) is in tight fit with the fixing slot (27), at least the front end of the supporting part (25) is inserted into the limiting slot (28), the grounding part (23) extends into the connecting slot (15) from the avoiding opening (29), and the connecting pin (26) extends out of the insulating base (1); the pressing plate (11) is provided with a contact part (30) which is downward abutted against the grounding part (23) when the pressing plate is at the locking position.

8. A flat cable connector according to claim 7, wherein the grounding portion (23) has a hook structure facing away from the bottom of the connecting groove (15), and a pressing table (31) adapted to be brought into abutment with the abutting portion (30) is formed at an upper end thereof.

9. A flat cable connector according to claim 1, wherein the pressing plate (11) is provided with an adsorption plane (35), and a bar-shaped boss (36) extending in the longitudinal direction of the pressing plate (11) is provided at the edge of the adsorption plane (35).