CN214797799U

CN214797799U - FFC connector

Info

Publication number: CN214797799U
Application number: CN202120355541.1U
Authority: CN
Inventors: 叶明明; 许立军; 徐红强
Original assignee: Dongguan Leader Precision Industry Co Ltd
Current assignee: Dongguan Leader Precision Industry Co Ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2021-11-19
Anticipated expiration: 2031-02-08

Abstract

The utility model discloses a FFC connector, FFC connector includes insulator, accepts in this insulator terminal group and installs the buckle spare in insulator, insulator has the confession arrange the slot that the ply-yarn drill was pegged graft, buckle spare is including detaining portion and elasticity buckle arm, detain the portion of holding and be fixed in insulator, the free end of elasticity buckle arm to slot bending type becomes and is used for the buckle arrange the buckle portion of ply-yarn drill. Arrange the ply-yarn drill and buckle portion natural elastic contact to can not produce great rigid wearing and tearing to the row line card, and when withdrawing from the row ply-yarn drill, do not need manual the pressing, pull out the card naturally and can withdraw from, convenient operation, and the elasticity buckle arm has elasticity, and the plug durability is better.

Description

FFC connector

Technical Field

The utility model relates to a connector technical field especially relates to a 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 softness, bending folding at will, thickness is thin, small, connect simple, dismantle convenient, solve advantages such as electromagnetic shield easily, consequently by extensive application in many electronic products. The FFC connector is used in cooperation with signal transmission components such as a flexible flat cable (cable arrangement card) and the like to transmit signals from one end to the other end, so that the purpose of signal transmission is achieved. The current FFC connector fixes the inserted flat cable clamp through the fastener and can withdraw from the flat cable clamp only by manually pressing the fastener, so that the operation is inconvenient, the flat cable clamp is easily subjected to hard abrasion, and the quality of the hard flat cable clamp is improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a FFC connector is in order to solve above-mentioned technical problem.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a FFC connector, FFC connector include insulator, accept in terminal group in the insulator with install in buckle spare in the insulator, the antetheca of insulator is equipped with inside sunken slot, buckle spare include with insulator fixed connection's the portion of holding and the elasticity buckle arm that extends along the grafting direction, elasticity buckle arm set up in one side on the slot length direction, the free end of elasticity buckle arm to slot is buckled and some or whole outstanding slot internal surface forms buckle portion.

Preferably, the latch further includes a base, and the latching portion and the elastic latching arm extend from the base toward the front wall.

Preferably, the latching portion has an interference portion that is fixed to the insulating body by interference.

Preferably, the two buckling pieces are symmetrically arranged on two sides of the slot in the length direction.

Preferably, the two buckling pieces are connected through a connecting part, and a flat plate is arranged on the connecting part.

Preferably, the rear wall of the insulating body is provided with a plurality of terminal grooves communicated with the slot, and the terminal group comprises a plurality of conductive terminals and is correspondingly fixed in the plurality of terminal grooves.

Preferably, the conductive terminal includes a fixing portion, and the fixing portion is fixed in the terminal groove.

Preferably, one end of the fixing portion close to the front wall is provided with a reverse folding portion which is reversely bent, one end of the reverse folding portion far away from the fixing portion extends towards the rear wall to form an elastic contact arm, and the elastic contact arm is provided with a contact portion which partially protrudes out of the inner surface of the slot.

Preferably, the FFC connector further comprises a grounding member fixed in the insulating body, the grounding member comprising a resilient grounding arm partially protruding from an inner surface of the insertion groove.

Preferably, the grounding part further comprises positioning plates respectively fixed to the insulating body, and the elastic grounding arm is formed by reversely bending one end of the positioning plate close to the front wall and then extending towards the rear wall.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a set up on the elasticity buckle arm and buckle to the slot and be the buckle portion of arc and part or the whole outstanding slot internal surface, the fixed winding displacement card that inserts in the FFC connector slot of buckle portion buckle, and the natural elastic contact of winding displacement card and buckle portion, thereby can not produce rigid wearing and tearing to the winding displacement card, and when withdrawing from the winding displacement card, do not need manual the pressing, pull out the card naturally and can withdraw from, and convenient operation, and the elasticity buckle arm has elasticity, automatic elastic deformation when the card is arranged to the plug, the plug durability is better.

Drawings

Fig. 1 is a schematic structural diagram of the FFC connector of the present invention mounted on a circuit board and plugged with a cable card;

fig. 2 is a schematic structural view of the FFC connector of the present invention mounted on a circuit board;

fig. 3 is an exploded view of the FFC connector and circuit board of the present invention shown in fig. 2;

fig. 4 is a schematic view of the FFC connector at another angle;

fig. 5 is an exploded view of the FFC connector of the present invention;

figure 6 is an exploded view of another angle of the FFC connector of the present invention shown in figure 5;

fig. 7 is a schematic structural view of a conductive terminal of the FFC connector of the present invention;

fig. 8 is a schematic structural view of a fastener of the FFC connector of the present invention;

fig. 9 is a schematic structural view of the grounding member of the FFC connector of the present invention;

figure 10 is a schematic cross-sectional view of the FFC connector of the present invention;

fig. 11 is a schematic cross-sectional view of the FFC connector of the present invention inserted with a cable arranging card;

fig. 12 is a partially exploded view of the FFC connector of the present invention plugged with a cable card.

Detailed Description

Referring to fig. 1 to 3, the present invention discloses an FFC connector 100 for being mounted on a circuit board 200 for a cable card 300 to be inserted, so as to electrically connect the cable card 300 and the circuit board 200. The opposite sides of the flat cable card 300 for inserting into the inserting end of the FFC connector 100 in this embodiment are provided with card slots 301 (see fig. 12).

Referring to fig. 1 to 9, the FFC connector 100 includes an insulating housing 1, a terminal set 2 accommodated in the insulating housing 1, a locking member 3 installed in the insulating housing 1, and a grounding member 4 assembled to the insulating housing 1.

The insulating body 1 is formed by plastic through integral injection molding, and comprises a front wall 11 arranged in front in the inserting direction, a rear wall 12 arranged opposite to the front wall 11, a slot 13 formed inwards from the front wall 11, and a terminal slot 14, a first assembling slot 15 and a second assembling slot 16 which are respectively communicated with the slot 13. The slot 13 is used for receiving the plugging end of the rowed line card 300, and the slot 13 is flat and slender to adapt to and receive the plugging end of the rowed line card 300. The terminal groove 14 is opened in the rear wall 12, the terminal groove 14 is formed by recessing from the rear wall 12 toward the front wall 11, and the plurality of terminal grooves 14 are arranged in a fence shape along the length direction (perpendicular to the plugging direction) of the insulating body 1. The two first assembling grooves 15 are recessed from the rear wall 12 toward the front wall and are respectively disposed on both sides of all the terminal grooves 14 in the length direction of the insulating body (perpendicular to the plugging direction). Two second assembling grooves 16 are recessed from the front wall 11 toward the rear wall 12 and are respectively disposed at lower sides of two ends of the insertion groove 13 in the length direction of the insulating body.

The terminal set 2 includes a plurality of conductive terminals 21 and is correspondingly fixed in the plurality of terminal slots 14. The conductive terminal 21 includes a strip-shaped fixing portion 211, a soldering leg 212 bent and extended from an end of the fixing portion 211 away from the front wall 11, a reverse-folded portion 213 bent and extended from an end of the fixing portion 211 close to the front wall 11, an elastic contact arm 214 extending obliquely from an end of the reverse-folded portion 213 away from the fixing portion 211 toward the rear wall 12, and a contact portion 215 disposed on the elastic contact arm 214. The fixing portion 211 extends along the plugging direction (the direction in which the rowed card 300 is inserted into the slot 13), and can be inserted and fixed into the terminal groove 14 from the rear wall 12 to the front wall 11 of the insulation body 1 from the rear wall 12, and barbs 2111 interfering with and fixed to the terminal groove 14 are provided on both side surfaces of the fixing portion 211. The soldering pin 212 and the fixing portion 211 are substantially Z-shaped, and the soldering pin 212 is bent from one end of the fixing portion 211 far from the front wall 11 by about 90 degrees, extended by a certain distance, and then bent by 90 degrees, so that the soldering pin 212 is soldered and fixed on the circuit board 200, preferably, the soldering pin 212 and the fixing portion 211 are parallel to each other. The elastic contact arm 214 extends toward the rear wall 12 through the inflection portion 213 and forms an included angle with the fixing portion 211, the included angle is preferably an acute angle, and one end of the elastic contact arm 214 away from the inflection portion 213 is bent and protruded in a direction away from the fixing portion 211 to form a contact portion 215. The elastic contact arm 214 extends to the slot 13, and the contact portion 215 protrudes from the inner surface of the slot 13 to electrically connect with the flat cable card 300 inserted into the slot 13.

When the flat cable card 300 is inserted into the slot 13 from the front wall 11 to the rear wall 12, the front end of the flat cable card 300 first contacts with the elastic contact arm 214 of the conductive terminal 21, and when the flat cable card 300 is inserted continuously, the flat cable card 300 presses the elastic contact arm 214 to deform elastically, and after the flat cable card 300 is inserted in place, the flat cable card 300 is electrically connected with the contact part 215. When the card is ejected, the bus card 300 is separated from the contact portion 215, and the elastic contact arm 214 is elastically restored. The extending direction of the elastic contact arm 214 is the same as the plugging direction of the flat cable card 300, and the end of the elastic contact arm 214 far away from the fixing part 211 extends towards the rear wall 12 through the reverse folding part 213, so that the extending direction of the elastic contact arm 214 is the same as the plugging direction, and the conductive terminal can be prevented from being broken or being incapable of being elastically recovered when the flat cable card is plugged, thereby ensuring the stability of electrical contact, ensuring the service life of the conductive terminal and improving the quality of the FFC connector 100.

The two buckling pieces 3 are symmetrically arranged on two sides of the length direction of the insulating body 1 and fixed in the first assembling groove 15, and the first assembling groove 15 is provided with a cavity structure matched with the shape of the buckling pieces 3. The clasp 3 includes a base 31, a clasping portion 32 extending from the base 31 toward the front wall 11, a resilient clasp arm 33 extending from the base 31 toward the front wall and above the clasping portion 32, and a solder pad 34 extending from the base 31 toward the rear wall 12. Preferably, the base 31 is vertically disposed, the latching portion 32 and the elastic latching arm 33 respectively extend from the same side of the base 31 in the plugging direction, and the solder pad 34 extends from the other side of the base 31. The latching portion 32 is used to fix the grommet 3 in the first assembly groove 15, and the latching portion 32 has an interference portion 321 that is fixed to interfere with the first assembly groove 15. The free end of the elastic buckling arm 33 is bent into the slot 13 to form a buckling part 331 for buckling the line card 300, preferably, the buckling part 331 is in a V shape, an included angle between one end of the buckling part 331 close to the elastic buckling arm 33 and the elastic buckling arm 33 is preferably an obtuse angle, one end of the buckling part 331 far away from the elastic buckling arm 33 extends towards a direction far away from the slot 13 and intersects with the plugging direction, and therefore the line card 300 can be directly plugged and pulled out conveniently. The solder pad 34 is used for soldering the fastener 3 to the circuit board 200. The two buckling pieces 3 are connected through the connecting portion 35, the stability of the buckling pieces 3 can be enhanced, two ends of the connecting portion 35 are respectively connected with the base portion 31 of the buckling pieces 3, and the connecting portion 35 is further provided with a flat plate 36 for assisting in releasing the buckling pieces or shielding the buckling pieces.

When the flat cable card 300 is inserted into the slot 13, the two elastic fastening arms 33 are firstly spread apart by the two side edges of the flat cable card 300 until the fastening portion 331 enters the slot 301 of the flat cable card 300, and at this time, the fastening portion 331 is fastened in the slot 301, so that the flat cable card 300 is fixed in the slot 13. When the card is withdrawn, the card discharging clip 300 is directly pulled out, the card discharging clip 300 again stretches the two elastic buckling arms 33, and the buckling part 331 is separated from the clamping groove 301 to realize the card withdrawal. When withdrawing the card, only one hand is needed to directly pull out the card, the operation is simple, the elastic buckling arm 33 arranged laterally has better elasticity, the buckle of the flat cable card 300 is more stable, and the flat cable card 300 can not be damaged. Compare in current through the manual operating parts that press down the card just can move back the card, and buckle portion and winding displacement card produce the mode of hard interference wearing and tearing when moving back the card, the utility model discloses when inserting/pulling out the card, winding displacement card 300 and buckle part 3's buckle portion 331 nature elastic contact to can not produce great hard wearing and tearing to winding displacement card 300, and when withdrawing from winding displacement card 300, do not need manual pressing, pull out the card naturally and can withdraw from, convenient operation, and elasticity buckle arm 33 has elasticity, automatic elastic deformation when plug winding displacement card 300, the plug durability is better.

Preferably, the grounding member 4 has two slots symmetrically installed in the second assembly slot 16, and the second assembly slot 16 has a cavity structure matching the shape of the grounding member 4. The grounding member 4 includes a positioning plate 41, an elastic grounding arm 42 bent and extended from the positioning plate 41 toward the rear wall, a welding portion 43 bent and provided from one end of the positioning plate 41 in the longitudinal direction, and a positioning arm 44 extended from the welding portion 43. The positioning plate 41 is parallel to the circuit board 200 and is inserted into the lower side of the slot 13, the elastic grounding arm 42 is folded back from one end of the positioning plate 41 close to the front wall 11 and extends obliquely into the slot 13, the free end of the elastic grounding arm 42 is forked to form two grounding portions 421, and preferably, the two grounding portions 421 are arranged in parallel with each other. The soldering portion 43 is substantially concave, the positioning plate 41 and the positioning arm 44 are respectively disposed on two sides of the soldering portion 43, the soldering portion 43 is used for being soldered on the circuit board 200, and the positioning arm 44 is disposed perpendicular to the positioning plate 41 and inserted into the second assembling groove 16 from the front wall 11 to the rear wall 12.

When the flat cable card 300 is inserted into the slot 13, the bottom end of the flat cable card 300 contacts the grounding portion 421 of the grounding member 4, and the grounding portion 421 is disposed on the elastic grounding arm 42, and has a holding function for the flat cable card 300 while being grounded. In this embodiment, the two grounding members 4 are separately provided, and in other embodiments, the two grounding members 4 may be connected to form an integral structure by a connecting member.

The FFC connector 100 is mounted on the circuit board 200, the flat cable card 300 is inserted into the slot 13 in a direction parallel to the circuit board 200, the flat cable card 300 passes through the elastic latching arms 33 at both sides and the latching portion 331 is latched in the latching slot 301 of the flat cable card 300, the flat cable card 300 is inserted in place, and the latching portion 331 of the elastic latching arm 33 naturally contacts with the flat cable card 300. When the flat cable card 300 is pulled out, the elastic buckling arm 33 is elastically deformed along with the gradual pulling-out of the flat cable card 300, the buckling part 331 is withdrawn from the buckling groove 301, and the flat cable card 300 can be withdrawn. The card can be withdrawn by one hand, and the operation is simple. The elastic buckling arm 33 has elasticity, and is automatically elastically deformed when the flat cable card 300 is plugged and pulled, so that the durability is good, and the situation that the flat cable card 300 is pulled back by two hands and hard interference is caused to the flat cable card 300 can be avoided.

The extending direction of the elastic contact arm 214 of the conductive terminal 21 is the same as the inserting direction of the flat cable card 300, and the elastic contact arm 214 has sufficient elasticity to ensure the electrical contact of the contact part 215 without causing collapse or collapse, thereby ensuring the quality of the conductive terminal 21 and realizing higher quality of the FFC connector 100.

The above embodiments are only used for illustrating the present invention and not for limiting the technical solutions described in the present invention, and the understanding of the present specification should be based on the technical people in the related art, for example, the descriptions of the directions such as "front", "back", "left", "right", "up", "down", etc., although the present specification has described the present invention in detail with reference to the above embodiments, the ordinary skilled in the art should understand that the technical people in the related art can still modify or substitute the present invention, and all the technical solutions and modifications thereof that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.

Claims

1. The FFC connector (100) is characterized by comprising an insulating body (1), a terminal group (2) contained in the insulating body (1) and a clamping piece (3) installed in the insulating body (1), wherein an inward-concave slot (13) is formed in the front wall of the insulating body (1), the clamping piece (3) comprises a clamping part (32) fixedly connected with the insulating body (1) and an elastic clamping arm (33) extending along the inserting direction, the elastic clamping arm (33) is arranged on one side of the slot (13) in the length direction, and the free end of the elastic clamping arm (33) bends towards the slot (13) and partially or completely protrudes out of the inner surface of the slot (13) to form a clamping part (331).

2. The FFC connector of claim 1, wherein: the fastener (3) further comprises a base (31), and the fastening portion (32) and the elastic fastening arm (33) extend from the base (31) to the front wall direction.

3. The FFC connector of claim 2, wherein: the buckling part (32) is provided with an interference part (321) which is fixed with the insulation body (1) in an interference way.

4. The FFC connector of claim 1, wherein: the buckling pieces (3) are provided with two sides which are symmetrically arranged on the length direction of the slot (13).

5. The FFC connector of claim 4, wherein: the two buckling pieces (3) are connected through a connecting portion (35), and a flat plate (36) is arranged on the connecting portion (35).

6. The FFC connector of claim 1, wherein: the rear wall (12) of the insulating body (1) is provided with a plurality of terminal grooves (14) communicated with the inserting grooves (13), and the terminal group (2) comprises a plurality of conductive terminals (21) and is correspondingly fixed in the terminal grooves (14).

7. The FFC connector of claim 6, wherein: the conductive terminal (21) comprises a fixing part (211), and the fixing part (211) is fixed in the terminal groove (14).

8. The FFC connector of claim 7, wherein: one end, close to the front wall, of the fixing portion (211) is provided with a reverse folding portion (213) which is bent reversely, one end, far away from the fixing portion (211), of the reverse folding portion (213) extends towards the rear wall to form an elastic contact arm (214), and a contact portion (215) with a part protruding out of the inner surface of the slot (13) is arranged on the elastic contact arm (214).

9. The FFC connector of claim 8, wherein: the FFC connector (100) further comprises a grounding piece (4) fixed in the insulating body (1), and the grounding piece (4) comprises an elastic grounding arm (42) partially protruding out of the inner surface of the insertion groove (13).

10. The FFC connector of claim 9, wherein: the grounding piece (4) further comprises positioning plates (41) fixed on the insulating body (1) respectively, and the elastic grounding arm (42) is formed by extending towards the direction of the rear wall after one end, close to the front wall, of the positioning plate (41) is reversely bent.