CN215266838U - Electrical connector - Google Patents

Abstract

The utility model provides an electric connector, including insulator, accept in insulator a plurality of terminals, be fixed in the mounting at insulator both ends and cover in convertible metal casing on the insulator, insulator is equipped with a diapire in order to bear a FPC linellae, and is formed with a pair of portion of holding on this diapire, metal casing is equipped with the bullet arm that a pair of downward sloping extends, the end of bullet arm is equipped with the downwardly protruding income hook portion in the portion of holding, hook portion is equipped with a vertical downwardly extending's side shield and transversely bends the backplate that forms from this side shield's rear edge. Compared with the prior art, the utility model discloses a set up the metal casing that can overturn on insulator, borrow the bullet arm card that the metal casing downwardly extending and hold in the notch of inserting FPC line both sides to carry on spacingly to the FPC line, owing to play terminal hook portion of arm and notch and have great area of contact, make hook portion can realize better spacing effect moreover.

Description

Electrical connector

Technical Field

The utility model relates to an electric connection field especially relates to an electric connector.

Background

With the development trend of miniaturization and lightness of consumer electronic products such as notebook computers, tablet computers, mobile phones and the like, the requirements on the design and manufacturing process of parts of the consumer electronic products are higher and higher, and as the products are lighter and thinner day by day, the internal space of the consumer electronic products is very narrow, so that the requirement that the internal parts of the consumer electronic products are required to adopt a dense layout is met, the volume of each electronic part is smaller and thinner, and the requirements on the reliability of the manufacturing process and the connection of the consumer electronic products are higher and higher. An FPC (Flexible Printed Circuit) electrical connector is a common electrical connector in electronic products, and is used for inserting an FPC cable, and generally includes an insulating body, a terminal accommodated in the insulating body, and a pivoting pressing plate. Because the FPC electric connector is small in size, the strength of the pivoting pressure plate is weak, and the pivoting pressure plate is easy to break or separate from the insulation body under the condition of large stress or frequent overturning, so that the connection reliability and stability of the electric connector are influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric connector to improve among the prior art upset clamp plate intensity weak, easy cracked problem.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an electric connector, includes insulator, accepts a plurality of terminals in insulator, is fixed in the mounting at insulator both ends and covers convertible metal casing on the insulator, insulator is equipped with a diapire in order to bear a FPC linellae, and is formed with a pair of portion of holding on this diapire, metal casing is equipped with the bullet arm that a pair of downward sloping extends, the end of bullet arm is equipped with the downwardly protruding and stretches into hook portion in the portion of holding, hook portion is equipped with the side shield of a vertical downwardly extending and transversely bends the backplate that forms from the trailing edge of this side shield.

Furthermore, the accommodating part penetrates through the bottom wall of the insulating body in the vertical direction, a pair of through holes are formed in the metal shell, the through holes and the accommodating part are vertically arranged in a corresponding mode, and the elastic arms are formed on the inner sides of the through holes.

Further, the through-hole is provided with a laterally widened portion, and at least a part of the plurality of terminals is located directly below the widened portion so as to be exposed to the through-hole.

Furthermore, a plurality of accommodating grooves for accommodating the terminals are further formed in the bottom wall of the insulating body, the pair of accommodating parts are respectively located at two ends of the plurality of accommodating grooves, and the hook parts are L-shaped and are buckled with two sides of the FPC line row.

Furthermore, the metal shell is provided with a main board, the front side of the main board is provided with an arc edge which is turned downwards, and the rear side of the main board is provided with a pair of limiting folded plates which are bent downwards.

Furthermore, the limiting folding plate extends downwards and is shielded on the rear side surface of the insulating body, and a limiting protrusion matched with the limiting folding plate in a locking mode is arranged on the rear side of the insulating body.

Furthermore, pivot shafts protruding outwards are formed at two ends of the arc-shaped edge, the pivot shafts protrude out of two side edges of the mainboard, and a supporting part for supporting the pivot shafts is arranged on the insulation body.

Further, the side dams are provided with a leading edge extending obliquely downward.

Further, the surface area of the back baffle is smaller than the surface of the side baffle.

Compared with the prior art, the utility model discloses a set up the metal casing that can overturn on insulator, borrow the bullet arm card that the metal casing downwardly extending and hold in the notch of inserting FPC line both sides to carry on spacingly to the FPC line, owing to play terminal hook portion of arm and notch and have great area of contact, make hook portion can realize better spacing effect moreover.

Drawings

Fig. 1 is an exploded view of the electrical connector of the present invention.

Fig. 2 is a bottom structural view of the electrical connector of the present invention.

Fig. 3 is a perspective assembly view of the electrical connector of the present invention.

Fig. 4 is a cross-sectional view of the electrical connector of the present invention taken along the horizontal direction.

Fig. 5 is a structural view of the spring arm of the metal shell of the electrical connector according to the present invention.

Fig. 6 is a structural view of the electric connector when the metal shell is fastened to the FPC line.

Detailed Description

Referring to fig. 1 to 6, the present invention provides an electrical connector, which includes an insulating housing 10, a plurality of terminals 20 housed in the insulating housing 10, fixing members 30 fixed at two ends of the insulating housing 10, and a metal shell 40 covering the insulating housing 10, wherein the electrical connector is used for inserting an FPC cable assembly 200, and the metal shell 40 is used to limit the position of the FPC cable assembly 200 by being fastened, and the above components are described in detail below.

The insulating body 10 is elongated and is provided with a bottom wall 11, a top wall 12 and a pair of end walls 13, the bottom wall 11 is provided with a plurality of receiving grooves 14 for receiving the lower contact arms 22 of the terminals 20, and the receiving grooves 14 are formed on the upper surface of the bottom wall 11 and are arranged at equal intervals. The top wall 12 and the bottom wall 11 are arranged corresponding to each other up and down, a slot for inserting an FPC line is formed between the bottom wall 11 and the top wall 12, but the width of the top wall 12 in the front-back direction is smaller than that of the bottom wall 11, a plurality of clamping grooves 15 are formed on the lower surface of the top wall 12 and used for clamping upper contact arms 21 of terminals 20, the upper surface of the top wall 12 is lower than that of the end wall 13, and a pair of concave parts 16 arranged adjacent to the end wall 13 is formed on the upper surface of the top wall 12. The end wall 13 extends along the front-rear direction, the rear end of the end wall 13 extends backwards to exceed the top wall 12, a fixing groove 17 is formed in the front end of the end wall 13 and used for mounting the fixing piece 30, notches of the fixing groove 17 are arranged forwards so that the fixing piece 30 can be inserted into the fixing groove 17 from front to back, a supporting portion 18 located on the inner side of the fixing groove 17 is further arranged at the front end of the end wall 13, the supporting portion 18 is arranged adjacent to the fixing groove 17 and used for supporting pivot shafts 47 at two ends of the metal shell 40, and a limiting wall 19 is arranged on the rear side of the supporting portion 18 and used for limiting the pivot shafts 47.

The terminal 20 is provided with an upper contact arm 21, a lower contact arm 22 and a main body portion 23 connecting the upper contact arm 21 and the lower contact arm 22, wherein the upper contact arm 21 is accommodated in the slot 15 of the top wall 12, the lower contact arm 22 is accommodated in the accommodating groove 14 of the bottom wall 11, the main body portion 23 is clamped in the insulating body 10, and a mounting leg 24 is further extended from the rear end of the main body portion 23 for welding the terminal 20 to a circuit board. The upper contact arm 21 and the lower contact arm 22 both extend in the front-rear direction, and the extension length of the upper contact arm 21 is greater than that of the lower contact arm 22.

The fixing member 30 is formed by integrally stamping and bending a metal member, and is provided with a retaining arm 31, a welding arm 32 extending downward from the retaining arm 31, and a shielding arm 33 extending upward from the retaining arm 31, wherein the retaining arm 31 extends from front to back and is inserted into the fixing groove 17, and the bottom edge of the retaining arm 31 is provided with a protruding thorn portion 34, so that the retaining arm 31 and the end wall 13 can be retained and fixed. The soldering arm 32 is bent from the lower side of the holding arm 31 for soldering to a circuit board, and the soldering arm 32 is further provided with a notch 35, so that soldering tin can pass through the notch 35 and cover the surface of the soldering arm 32, and the board-holding force of the soldering arm 32 can be increased. The shielding arm 33 is bent inward from the top edge of the retaining arm 31, and the shielding arm 33 is L-shaped and has a top side blocking piece 36 and a front side blocking piece 37, where the top side blocking piece 36 and the front side blocking piece 37 are perpendicular to each other and respectively cover the top side and the front side of the supporting portion 18, so as to limit the pivot 47 on the supporting portion 18.

The metal housing 40 is substantially rectangular and has a flip-type structure, the flip-type metal housing 40 is provided with a main board 41, the main board 41 covers right above the bottom wall 11, the surface of the main board 41 is provided with a pair of through holes 42, the through holes 42 are provided with a transverse widening portion 421, so that a part of the terminals 20 right below the through holes are exposed in the through holes 42 and are in a visible state, the through holes 42 are internally provided with downward obliquely extending elastic arms 43 for being clamped and matched with the notches 201 on the FPC line row 200, the elastic arms 43 extend from back to front and gradually reduce in width, the tail ends of the elastic arms 43 are further provided with downward protruding hook portions 44, the hook portions 44 are bent and extended downward from the side edges of the elastic arms 43 and protrude into the notches 201, and therefore the limitation on the FPC line row 200 is achieved. The front side of the main plate 41 is provided with an arc-shaped edge 45 which is folded downwards, the rear side of the main plate 41 is provided with a pair of limiting folding plates 46 which are bent downwards, wherein two ends of the arc-shaped edge 45 form a pivot shaft 47 which protrudes outwards, the pivot shaft 47 protrudes out of two sides of the main plate 41, the pivot shaft 47 is clamped on the supporting part 18, and is limited by the front side blocking piece 37 and the limiting wall 19 in the front-rear direction and limited by the top side blocking piece 36 in the upward direction, so that the pivot shaft 47 can be limited on the supporting part 18. The limiting flap 46 extends downward and covers the rear side surface of the insulating body 10, so as to limit the metal shell 40, the rear side of the main board 41 is further provided with a rear flange 48 which extends rearward and horizontally beyond the insulating body top wall 12 and the limiting flap 46, and the rear flange 48 covers the mounting leg 24 of the terminal 20. The stopper flap 46 is provided with a projection 49 projecting toward the end wall 13, and the projection 49 is snap-fitted with the stopper projection 131 on the end wall 13, and unlocking or locking is performed by the engagement of the projection 49 with the stopper projection 131 when the metal case 40 is opened or closed.

It should be noted that, in order to make the hook portion 44 more reliably limit the FPC line bank 200, in the preferred embodiment of the present invention, the hook portion 44 is L-shaped, and is provided with a side baffle 441 extending vertically downward and a rear baffle 442 formed by bending the rear side edge of the side baffle 441 transversely, the side baffle 441 and the rear baffle 442 are perpendicular to each other and form an L-shaped structure, both of which are located in the recess 201 of the FPC line bank 200, wherein the side baffle 441 is provided with a front side edge 443 extending obliquely downward to guide the FPC line bank 200 to be inserted smoothly, the rear baffle 442 and the side baffle 441 are integrally connected, and the rear baffle 442 can be abutted backward against the recess 201, so that the FPC line bank 200 is not easy to fall off from the insulating body 10, and due to the existence of the rear baffle 442, the contact area between the hook portion 44 and the FPC line bank 200 becomes larger, the FPC line bank 200 can be better restrained. In addition, the surface area of the back baffles 442 is smaller than the surface of the side baffles 441.

Correspondingly, in order to enable the hook portion 44 to be clamped downwards into the notch 201, the bottom wall 11 of the insulating body 10 is further provided with a pair of accommodating portions 110, which are respectively disposed at two ends of the accommodating grooves 14 and are respectively located right below the hook portion 44, so that the hook portion 44 can extend into the accommodating portion 110, preferably, the accommodating portion 110 penetrates through the bottom wall 11 in the vertical direction, so that the hook portion 44 can extend deeper into the accommodating portion 110, and it should be noted that the hook portion 44 only extends partially into the accommodating portion 110, but not extends into the accommodating portion 110 completely.

The utility model discloses a set up reversible metal casing 40 on insulator 10, borrow by the bullet arm 43 that downwardly extending on the metal casing 40, hold into the notch 201 of FPC cord row 200 both sides by bullet arm 43 card in to carry on spacingly to FPC cord row 200, owing to the end of bullet arm 43 has the hook portion 44 of L type, it has great area of contact with notch 201 moreover, makes hook portion 44 can realize better spacing effect.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides an electric connector, includes insulator, accepts a plurality of terminals in insulator, is fixed in the mounting at insulator both ends and covers convertible metal casing on the insulator, its characterized in that: the insulating body is provided with a bottom wall for bearing an FPC (flexible printed circuit) line, a pair of accommodating parts are formed on the bottom wall, the metal shell is provided with a pair of elastic arms extending downwards, the tail ends of the elastic arms are provided with hook parts protruding downwards into the accommodating parts, and the hook parts are provided with side baffles extending downwards vertically and rear baffles formed by transversely bending the rear side edges of the side baffles.

2. The electrical connector of claim 1, wherein: the accommodating part penetrates through the bottom wall of the insulating body in the vertical direction, a pair of through holes are formed in the metal shell, the through holes and the accommodating part are vertically arranged in a corresponding mode, and the elastic arms are formed on the inner sides of the through holes.

3. The electrical connector of claim 2, wherein: the through hole is provided with a lateral widening, and at least some of the terminals are located directly below the widening so as to be exposed to the through hole.

4. The electrical connector of claim 1, wherein: the bottom wall of the insulating body is further provided with a plurality of accommodating grooves for accommodating the terminals, the pair of accommodating parts are respectively positioned at two ends of the plurality of accommodating grooves, and the hook parts are L-shaped and are buckled with two sides of the FPC wire row.

5. The electrical connector of claim 1, wherein: the metal shell is provided with a main board, the front side of the main board is provided with an arc edge which is turned over downwards, and the rear side of the main board is provided with a pair of limiting folded plates which are bent downwards.

6. The electrical connector of claim 5, wherein: the limiting folded plate extends downwards and is shielded on the rear side surface of the insulating body, and a limiting protrusion matched with the limiting folded plate in a locking mode is arranged on the rear side of the insulating body.

7. The electrical connector of claim 6, wherein: pivot shafts protruding outwards are formed at two ends of the arc-shaped edge, the pivot shafts protrude out of two side edges of the mainboard, and a supporting part for supporting the pivot shafts is arranged on the insulation body.

8. The electrical connector of any one of claims 1 to 7, wherein: the side dams are provided with a leading edge extending obliquely downwardly.

9. The electrical connector of claim 8, wherein: the surface area of the back baffle is smaller than the surface of the side baffle.

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