CN218039891U - Firm type FPC connector - Google Patents

Abstract

The utility model discloses a firm type FPC connector, including base, fixed mounting in conductive terminal on the base to and rotatable install in gland on the base. The utility model discloses a set up the metal ear of symmetry and detain in the both sides of base, not only make simple process, occupation space is little, can increase the stress point of base after detaining fixed with the metal ear moreover, and when the gland opened and shut, base and leg atress were even steady, had guaranteed the stability of long-term use back leg.

Description

Firm type FPC connector

Technical Field

The utility model relates to an electric connector field, concretely relates to firm type FPC connector.

Background

FPC (Flexible Printed Circuit) connectors are widely used in various consumer electronic products, and a conventional FPC connector generally includes a front flip-top PFC connector and a rear flip-top FPC connector. Present leg lug weld through on the conductive terminal is on the PCB board, and the impetus during flip concentrates on the leg, and the product is through opening and shutting the back many times, and the stability variation of leg leads to the conductivity variation.

Disclosure of Invention

In order to overcome the defects, the utility model provides a simple structure, guarantee that the leg lasts stable firm type FPC connector.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: the stable FPC connector comprises a base, a conductive terminal fixedly arranged on the base and a gland rotatably arranged on the base; a plurality of U-shaped caulking grooves are formed in the base; the conductive terminal comprises a pressing arm, a contact arm and a welding leg, wherein the pressing arm and the contact arm are arranged oppositely up and down, and the welding leg extends out of the base; metal ear buckles are inserted at two ends of the base and comprise a cantilever, and a limiting boss and a stopping groove which are respectively arranged at the upper end and the lower end of the cantilever; the two ends of the base are respectively provided with a jack and a slot, the cantilever is inserted in the jack in an interference manner, and the stop groove is movably connected with the slot in a cross structure; still be equipped with first supporting block on the base, the gland bottom has overlap joint portion, the gland passes through buckle structure lid fit when on the base overlap joint portion supports and leans on form the butt joint space on the first supporting block, be equipped with on the gland and be used for dodging spacing boss dodge the groove.

As a further improvement, the both sides of gland are equipped with detains the platform, be equipped with the catching groove on the both sides inner wall of base, detain the platform with the catching groove is mutually supported and is constituteed buckle structure.

As a further improvement of the present invention, a plurality of grooves for abutting against the pressing arms are formed on one side end edge of the pressing cover, a limiting shaft is formed in the plurality of grooves, and both sides of the limiting shaft extend outwards to form a pivot shaft; the pivot shaft is movably connected with the catching groove.

As a further improvement of the utility model, the base is being close to one side of slot is equipped with the second supporting shoe, the gland is when the open mode the pin joint axle support lean on in on the second supporting shoe.

As a further improvement of the utility model, the bottom surface of the welding leg and the bottom surface of the metal ear button are on the same plane.

As a further improvement of the present invention, a semicircular groove is formed on the side of the pressing arm opposite to the contact arm; the free tail end of the abutting arm is provided with a transition cambered surface, and the front end of the limiting shaft is provided with a slope surface.

As a further improvement of the utility model, a triangular convex tooth is arranged on the cantilever.

The utility model has the advantages that: the metal ear buckles are symmetrically arranged on the two sides of the base, so that the manufacturing process is simple, the occupied space is small, stress points of the base can be increased after the metal ear buckles are fixed, the stress of the base and the welding leg is uniform and stable when the gland is opened and closed, and the stability of the welding leg after long-term use is ensured.

Drawings

Fig. 1 is a schematic structural view of a first position state of the present invention;

FIG. 2 is a structural diagram of a second position state of the present invention;

FIG. 3 is an exploded view of the present invention;

fig. 4 is a schematic view of another structure of the first position according to the present invention;

FIG. 5 isbase:Sub>A cross-sectional view of the present invention taken atbase:Sub>A first position A-A;

FIG. 6 is a cross-sectional view of the present invention taken in a first position B-B;

fig. 7 is a structural schematic view of another view angle state at the second position of the present invention;

FIG. 8 is a cross-sectional view of the present invention taken in a second position C-C;

fig. 9 is a cross-sectional view of the present invention in the second position D-D.

The following description is made with reference to the accompanying drawings:

1. a base; 100. a butt joint space; 101. a base; 102. a side wall; 103. a cross beam; 11. caulking grooves; 12. a jack; 121. chamfering; 13. inserting slots; 14. a first support block; 15. buckling grooves; 16. a second support block; 2. a conductive terminal; 21. a pressing arm; 211. a semicircular groove; 22. a contact arm; 23. welding feet; 3. a gland; 31. a lap joint part; 32. an avoidance groove; 33. buckling a platform; 34. a groove; 35. a limiting shaft; 351. a slope surface; 36. a pivot shaft; 4. a metal ear clip; 41. a cantilever; 411. triangular convex teeth; 42. a limiting boss; 43. a stop groove.

Detailed Description

The following description of a preferred embodiment of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1 and 2, the utility model provides a pair of firm type FPC connector, including base 1, fixed mounting conductive terminal 2 on base 1 to and rotatable gland 3 of installing on base 1. The gland 3 is rotatable between a first position and a second position. Referring to fig. 1, in the first position, the gland 3 opens the docking space 100. Referring to fig. 2, in the second position, the pressing cover 3 and the base 1 form a butting space 100, and the pressing cover 3 presses against the pressing arms 21 of the corresponding conductive terminals 2 to achieve a stable electrical connection.

Referring to fig. 3 to 9, the base 1 is made of insulating plastic and is formed by integrally molding a base 101, two sidewalls 102 and a cross member 103. The base 1 is provided with a plurality of U-shaped caulking grooves 11 at regular intervals for accommodating the corresponding conductive terminals 2. The U-shaped caulking groove 11 longitudinally penetrates through the base 101 and extends to the outer side of the cross beam 103, and then vertically extends to the middle section of the cross beam 103 and then is folded back and penetrates through the cross beam 103. The conductive terminal 2 includes a pressing arm 21 and a contact arm 22 which are inserted into the embedding groove 11 of the cross beam 103 and the base 101 and are arranged up and down, and a solder leg 23 which extends out of the outer side of the cross beam 103. The contact arms 22 have a certain elasticity, and the free ends thereof are slightly higher than the bottom of the insertion grooves 11 of the base 101, so that when the cover 3 is in the second position, the inserted FPC will abut against the elastic contact arms 22 to achieve a stable electrical connection.

Furthermore, the two ends of the beam 103 of the base 1 near the base 101 are provided with insertion holes 12, the two ends of the base 101 are provided with insertion slots 13 coinciding with the center lines of the insertion holes 12, and the upper ends of the insertion holes 12 are provided with chamfers 121. The metal ear clip 4 includes a cantilever 41 inserted into the insertion hole 12 in an interference manner, a limit boss 42 disposed at an upper end of the cantilever 41, and a stop groove 43 located at a bottom of the insertion groove 13. Specifically, the end of the cantilever 41 is a rounded corner, the upper end of the insertion hole 12 is provided with a chamfer 121 to facilitate the insertion of the metal ear clip 4, and the stop groove 43 and the insertion slot 13 are in a cross-shaped matching manner, so that the metal ear clip 4 is more stable and does not deflect. The upper end of the cantilever 41 is provided with a triangular convex tooth 411, and the front end of the triangular convex tooth 411 is slightly lower than short enough to ensure that the metal ear clip 4 is smoothly inserted into the jack 12 and will not be removed after being inserted.

Further, the base 101 is provided with a first support block 14 at the inner side close to the insertion slot 13, the bottom of the cover 3 is provided with a lap portion 31, and the lap portion 31 abuts against the first support block 14 when the cover 3 is covered on the base 1 through a snap structure to form the above-mentioned butt space 100. Meanwhile, the gland 3 is provided with an avoiding groove 32 for avoiding the limit boss 42, so that the metal lug buckle 4 can be smoothly assembled on the base 1 when in the first position. In the second position, the gland 3 does not interfere with the metal ear clip 4 in assembly. Wherein, buckle structure is equipped with for the both ends of gland 3 and detains platform 33, sets up on the base 1 and detains the catching groove 15 that platform 33 matches, and buckle structure keeps gland 3 in the second position on base 1 with spacing. Specifically, the fastening table 33 is disposed at the outer positions of the two ends of the pressing cover 3. A boss is provided at a position outside the upper end of the inner side of the side wall 102, and the boss and the base 101 form a catching groove 15. Detain the upper and lower terminal surface of platform 33 and boss and all be provided with the direction inclined plane, when detaining platform 33 and arranging the boss below in, detain the direction inclined plane of platform 33 upper end promptly and support with the direction inclined plane of boss lower extreme and lean on and form buckle structure.

Referring to fig. 4 to 9, a plurality of grooves 34 for abutting against the pressing arm 21 are formed on an end edge of one side of the pressing cover 3, a limiting shaft 35 is formed in the plurality of grooves 34, and two sides of the limiting shaft 35 extend outwards to form a pivoting shaft 36; the pivot shaft 36 is movable within the catch groove 15. The cover 3 is rotatable about the pivot shaft 36 to change the position between a first position and a second position. Specifically, each groove 34 is provided with a conductive terminal 2, and the pressing arm 21 of the conductive terminal is disposed in the groove 34.

The base 101 is provided with a second supporting block 16 near the insertion hole 12, and the pivot shaft 36 abuts against the second supporting block 16 when the pressing cover 3 is in the open state. The second supporting block 16 prevents the cover plate 3 from excessively pressing the conductive terminal 2 during position conversion, thereby playing a certain limiting role. The inner side of the free end of the pressing arm 21 is provided with a semicircular groove 211, and the limiting shaft 35 is just accommodated in the semicircular groove 211. The front end of the pressing arm 21 is provided with a transition arc surface 212, and the front end of the limiting shaft 35 is provided with a slope surface 351. When the cover 3 is installed in the base 1, the slope surface 351 can smoothly guide the pressing arm 21 into the groove 34 of the cover 3 by the guiding action of the excessive arc surface 212.

The bottom surface of leg 23 and the bottom surface of metal ear buckle 4 do benefit to and weld leg 23 and the bottom surface of metal ear buckle 4 on the coplanar, guarantee the utility model discloses weld flatness and stability on PCB. Simultaneously the addition of metal ear buckle 4 makes the utility model discloses when the opening and closing of gland 3, the stress point of weld leg 23 can disperse to metal ear buckle 4 on.

Specifically, the utility model discloses an assembly method does:

pressing the conductive terminals 2 into the corresponding embedding grooves 11 on the base 1; then the gland 3 is installed, the gland 3 is placed at the first position and then is installed in the metal ear buckles 4 at the two sides. After the process is finished, the gland 3 is buckled on the base 1. Will the utility model discloses a weld leg 23 and metal ear buckle 4's bottom weld on the PCB board, when needs butt joint FPC (not shown in the figure), upwards open gland 3, accomplish FPC butt joint back, can accomplish with 3 locks of gland that the utility model is connected with FPC's electricity.

To sum up, the utility model discloses set up the metal ear of symmetry in the both sides of base and detain, not only make simple process, occupation space is little, can increase the stress point of base after detaining fixed with the metal ear moreover, and when the gland opened and shut, base and leg atress were even steady, had guaranteed the stability of long-term use back leg.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims (7)

1. A firm FPC connector comprises a base (1), a conductive terminal (2) fixedly mounted on the base (1), and a gland (3) rotatably mounted on the base (1); a plurality of U-shaped caulking grooves (11) are formed in the base (1); the conductive terminal (2) comprises a pressing arm (21) and a contact arm (22) which are arranged oppositely up and down, and a welding leg (23) extending out of the base (1); the method is characterized in that: metal ear buckles (4) are inserted at two ends of the base (1), and each metal ear buckle (4) comprises a cantilever (41), and a limiting boss (42) and a stop groove (43) which are respectively arranged at the upper end and the lower end of the cantilever (41); the two ends of the base (1) are respectively provided with a jack (12) and a slot (13), the cantilever (41) is inserted into the jacks (12) in an interference manner, and the stop groove (43) is movably connected with the slot (13) in a cross-shaped structure; still be equipped with first supporting block (14) on base (1), gland (3) bottom has overlap joint portion (31), gland (3) fit through buckle structure lid when base (1) is gone up overlap joint portion (31) support and lean on form butt joint space (100) on first supporting block (14), be equipped with on gland (3) and be used for dodging dodge groove (32) of spacing boss (42).

2. A robust FPC connector according to claim 1, wherein: the both sides of gland (3) are equipped with detains platform (33), be equipped with catching groove (15) on the both sides inner wall of base (1), detain platform (33) with catching groove (15) are mutually supported and are constituteed buckle structure.

3. A robust FPC connector according to claim 2, wherein: a plurality of grooves (34) used for abutting against the abutting arms (21) are formed in the end edge of one side of the pressing cover (3), limiting shafts (35) are formed in the grooves (34), and two sides of each limiting shaft (35) extend outwards to form a pivoting shaft (36); the pivot shaft (36) is movably connected with the buckling groove (15).

4. A robust FPC connector according to claim 3, wherein: the base (1) is provided with a second supporting block (16) at one side close to the slot (13), and the pivot shaft (36) abuts against the second supporting block (16) when the pressing cover (3) is in an open state.

5. A robust FPC connector according to claim 1, wherein: the bottom surface of the welding leg (23) and the bottom surface of the metal ear buckle (4) are on the same plane.

6. A robust FPC connector according to claim 4, wherein: a semicircular groove (211) is formed in one side, opposite to the contact arm (22), of the abutting arm (21); the free tail end of the abutting arm (21) is provided with a transition arc surface (212), and the front end of the limiting shaft (35) is provided with a slope surface (351).

7. The robust FPC connector of claim 1, wherein: the upper end of the cantilever (41) is provided with a triangular convex tooth (411).

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