CN201207510Y - electrical connector - Google Patents

Abstract

The utility model discloses an electric connector, it includes an insulator, and the cover is equipped with a metal casing on the insulator, and metal casing has both sides wall, and both sides wall respectively extend apart from the lower side edge certain distance department of lateral wall and be formed with an extension, and downwardly extending has a latch portion on the extension. When the electric connector is fixedly arranged on a circuit board provided with an accommodating groove and a fixing hole, the extending parts of the electric connector are respectively placed on the circuit board, the clamping tooth parts are respectively inserted and fixed in the corresponding fixing holes, and meanwhile, the part of the electric connector positioned below the extending parts sinks into the accommodating groove, so that the height of the whole assembly after the electric connector is welded on the circuit board is reduced.

Description

electrical connector

technical field

The utility model relates to an electric connector, in particular to an electric connector fixedly connected with a circuit board.

Background technique

The current electrical connector generally includes an insulating body, the insulating body is covered with a metal shell, and the bottom edge of the side wall of the metal shell protrudes vertically downward with fixing feet. Generally, a holding hole is opened on the circuit board matched with the electrical connector, and when the electrical connector and the circuit board are fixedly joined together, the fixing feet are clamped and fixed on the circuit board.

However, in the above-mentioned existing electrical connectors, since the fixing feet protrude vertically downward from the bottom edge of the side wall of the metal shell, when the electrical connector is clamped and fixed on the circuit board, the electrical connector and the circuit board The total height is at least the sum of the thickness of the electrical connector and the circuit board, resulting in a larger height of the overall assembly after the electrical connector is welded to the circuit board, which does not meet the current development trend of electronic products that are increasingly thinner and shorter.

Utility model content

The purpose of the utility model is to provide an electrical connector aiming at the defects in the prior art, which can reduce the height of the whole assembly after the electrical connector is welded on the circuit board.

In order to achieve the above purpose, the utility model electrical connector includes an insulating body, and several terminal card slots are opened on the insulating body, and a conductive terminal is respectively inserted in the terminal card slots; a metal shell is also sleeved on the insulating body, and the metal The housing has two side walls, each of which extends outward at a certain distance from the lower side edge of the side wall to form an extension part, and a locking tooth part extends downward on the extension part.

As mentioned above, when the electrical connector of the present invention is fixed on the circuit board provided with the receiving groove and the holding hole, the extension parts are respectively placed on the circuit board, and the locking teeth are respectively inserted and fixed in the corresponding holding holes. The part of the electrical connector under the extension part sinks into the receiving groove, thereby reducing the height of the overall component after the electrical connector is welded on the circuit board, so it can meet the development trend of current electronic products that are increasingly thinner and smaller.

Description of drawings

FIG. 1 is a three-dimensional exploded view of the electrical connector of the present invention.

Fig. 2 is a perspective view of the metal casing shown in Fig. 1 viewed from the rear.

FIG. 3 is a perspective view of the electrical connector shown in FIG. 1 before being soldered to a circuit board.

FIG. 4 is a perspective view of the electrical connector shown in FIG. 1 after being soldered to a circuit board.

The reference numerals of each element in the figure are explained as follows:

Metal shell 10 bottom wall 100

Hook 101 Cooperating groove 102

Side wall 110 Extension 111

Connecting part 112 Holding part 113

Reinforcing rib 114 Detent part 115

Chute 116 Top Wall 120

Compression shrapnel 121 Buckle slot 122

Card holder 123 Gear position 124

Insulation body 20 base 200

Spring hole 201 Convex part 202

Buckle part 203 Holder groove 204

Card position 205 Boss 210

Insertion part 211 First terminal slot 212

Second terminal slot 213 First conductive terminal 21

Second conductive terminal 22 Dustproof cover 30

Socket slot 300 card slot 301

Open slot 302 Protruding post 303

Slot 304 Holder 305

spring 40 circuit board 50

Storage tank 51 Holding hole 52

Cooperation Department 53

Detailed ways

In order to describe the technical content, structural features, achieved purpose and effect of the present utility model in detail, the following will be described in detail in combination with specific embodiments and accompanying drawings.

Please refer to Fig. 1, the electrical connector of the present utility model includes an insulating body 20, and several first conductive terminals 21 and several second conductive terminals 22 are respectively inserted on the insulating body 20; a metal shell is sleeved on the insulating body 20 10. A dustproof cover 30 is slidably installed in the metal shell 10 . Two springs 40 are installed between the dustproof cover 30 and the insulating body 20 .

The insulating body 20 has a base 200 in the shape of a cuboid, a boss 210 protrudes from the front end of the base 200, and a plugging part 211 protrudes from the middle of the boss 210. The upper and lower surfaces of the plugging part 211 are respectively A plurality of first terminal locking slots 212 and a plurality of second terminal locking slots 213 are provided, and the plurality of first terminal locking slots 212 and second terminal locking slots 213 extend forward and backward and penetrate through the entire insulating body 20 . The first conductive terminals 21 are correspondingly inserted into the first terminal slots 212 ; the second conductive terminals 22 are correspondingly inserted into the second terminal slots 213 .

A protrusion 202 protrudes from the left and right sides of the base 200 , and a spring hole 201 is respectively defined on the front end of the base 200 on both sides of the boss 210 . A locking portion 203 protrudes from a middle portion of the top surface of the base portion 200 . Two locking grooves 204 are defined on the rear of the top surface of the base 200 , and a locking portion 205 protrudes from the edge of the locking grooves 204 on the top surface of the base 200 .

Please refer to FIG. 1 and FIG. 2 , the metal shell 10 is cut and bent from a sheet metal, and has a bottom wall 100 , two side walls 110 and a top wall 120 . A front edge of the bottom wall 100 protrudes upwards and bends a hook 101 near the two side walls 110 , and a matching groove 102 is defined in the rear of the bottom wall 100 .

The middle part of the top wall 120 of the metal shell 10 punches out a downwardly bent pressing elastic piece 121, and the middle part of the rear end of the top wall 120 is provided with a buckle groove 122, and the rear end of the top wall 120 is on both sides of the buckle groove 122 respectively. Die-cutting forms two downwardly bent holding pieces 123 . A rear end edge of the top wall 120 is bent downwards and extends close to the two side walls 110 to form a blocking portion 124 .

The two side walls 110 of the metal shell 10 are respectively provided with a slide groove 116 extending forward and backward. An extension part 111 is formed, and the extension part 111 includes a connecting part 112 and a holding part 113. The connecting part 112 protrudes outward from the front edge of the side wall 110 and then bends back into an arc of approximately 180 degrees to hold The part 113 is formed extending backward from the end of the connecting part 112 . The retaining portion 113 protrudes downwards with a locking tooth portion 115 , and a reinforcing rib 114 extending up and down is stamped on the locking tooth portion 115 and the holding portion 113 . The reinforcing rib 114 can increase the strength of the locking tooth portion 115 and the holding portion 113 .

Please refer to Figure 1 and Figure 3, when the insulating body 20 and the metal shell 10 are clamped and fixed together, the insertion part 211 is accommodated in the metal shell 10, and the convex part 202 is clamped in the slide groove 116, and the buckle The part 203 is locked in the buckle groove 122 . The two clamping pieces 123 on the metal shell 10 are correspondingly locked in the clamping slots 204 of the insulating body 20 , and the retaining portion 124 of the metal shell 10 is positioned on the rear surface of the base 200 of the insulating body 20 .

The dust cover 30 is accommodated in the metal shell 10, and the front end surface of the dust cover 30 is provided with an inserting slot 300 that penetrates the dust cover 30 and extends laterally, and the inserting slot 300 is used for the insertion of the insulating body 20. part 211, so that the dust cover 30 is set on the socket part 211, the front end surface, the two sides and the bottom surface of the dust cover 30 are connected with a slot 301, and the slot 301 is provided for the metal shell 10. The hook 101 is snapped in, so as to prevent the dust cover 30 from falling out of the metal casing 10 . A protruding post 303 protrudes from both sides of the dust cover 30 , and the protruding post 303 is slid and held in the sliding groove 116 of the metal casing 10 . The middle part of the upper end surface of the dustproof cover 30 is provided with an opening groove 302, and the middle part of the rear end surface of the dustproof cover 30 is provided with a slot 304, and the rear end surface of the dustproof cover 30 is also protruding on both sides of the slot 304. Two holding parts 305 .

One ends of the two springs 40 are respectively inserted into the corresponding spring holes 201 of the insulating body 20 , and the other ends of the two springs 40 are sleeved on the two holding portions 305 respectively.

When a butt connector is inserted into the electrical connector of the utility model, the butt connector pushes the dust cover 30 backward, and the dust cover 30 compresses the spring 40 backward, and the protrusion 303 of the dust cover 30 is in the slide groove 116 Sliding, at the same time, the insertion part 211 of the insulating body 20 passes through the insertion slot 300 of the dust cover 30 and is plugged into the docking connector, and the pressing elastic piece 121 on the metal shell 10 passes through the slot 304 and is stuck on the docking connector. On the connector, the electrical connector of the present utility model can be stably inserted into the docking connector, so that the dustproof effect can be effectively achieved by means of the dustproof cover 30 .

Please refer to Fig. 3 and Fig. 4, the electrical connector is fixedly installed on a circuit board 50, and the circuit board 50 is provided with a receiving groove 51, and a matching part 53 protrudes from the receiving groove 51, and the circuit board 50 is placed on the A holding hole 52 is defined on both sides of the receiving groove 51 . When the electrical connector of the present invention is installed on the circuit board 50, the mating portion 53 of the circuit board 50 extends into the mating groove 102 of the electrical connector, and the extension portion 111 of the electrical connector of the present invention is placed on the circuit board 50 , the locking tooth parts 115 are respectively inserted and fixed in the corresponding holding holes 52, and at the same time, the part of the electrical connector located under the extension part 111 sinks into the receiving groove 51, thereby reducing the friction between the electrical connector and the circuit board 50 after welding. Therefore, it can adapt to the current development trend of electronic products that are becoming thinner, thinner and smaller.

Claims (5)

1. An electrical connector, comprising an insulating body, which is provided with several terminal card slots, and a conductive terminal is respectively inserted in the terminal card slots; the insulating body is also sleeved with a metal shell, and the metal shell has two The side wall is characterized in that: the two side walls of the metal shell extend outward at a certain distance from the lower side edge of the side wall to form an extension part, and a locking tooth part extends downward on the extension part. 2. The electrical connector according to claim 1, wherein the extension part has a connecting part protruding outward from the front edge of the side wall and then bent back into a 180-degree arc and a connecting part The retaining portion is formed by extending the end of the rearward, and the locking tooth portion is formed by extending downward from the retaining portion. 3. The electrical connector according to claim 2, wherein a reinforcing rib is stamped and formed on the latching portion and the holding portion. 4. The electrical connector according to claim 1, characterized in that: the insulating body has a plug-in portion, the two side walls of the metal shell are respectively provided with a chute extending forward and backward, and a dust-proof connector is slidably installed in the metal shell. Cover, the dust cover is provided with an insertion groove for the insertion part to pass through, and a protruding post protrudes from both sides of the dust cover, and the protruding post is slidably installed in the chute of the metal shell. A spring is arranged between the dust-proof covers. 5. The electrical connector according to claim 4, characterized in that: there are two clamping parts protruding from the dustproof cover, two spring holes are opened on the insulating body, there are two springs, and the two springs One ends of the two springs are respectively sheathed on the corresponding holding parts, and the other ends of the two springs are respectively inserted in the corresponding spring holes.

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