CN201207510Y

CN201207510Y - Electric connector

Info

Publication number: CN201207510Y
Application number: CNU200820048023XU
Authority: CN
Inventors: 江淑满; 何信宗
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2008-05-16
Filing date: 2008-05-16
Publication date: 2009-03-11
Anticipated expiration: 2018-05-16

Abstract

The utility model discloses an electric connector, comprising an insulating body on which a metal shell is nested, the metal shell is provided with two side walls, an extension part is respectively extended from the two side walls at certain distance from the lower lateral margins of the side walls, and a chucking part extends from the extension part downwards. When the electric connector is fixedly arranged on a circuit board provided with an accommodating groove and holding holes, the extension parts of the electric connector are respectively placed on the circuit board, the chucking parts are respectively inserted and fixed in the corresponding holding holes, meanwhile, the part of the electric connector under the extension part sinks into the accommodating groove, thereby reducing the height of the whole component of the electric connector after being welded to the circuit board.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector of fixedlying connected with circuit board.

Background technology

Current electric connector has generally comprised insulating body, is coated with metal shell on the insulating body, and the sidewall root edge of metal shell has protruded out fixing feet downward vertically.Usually, and offer holding hole on the circuit board that this electric connector cooperates, when electric connector and circuit board are fixably attached to a time-out, this fixing feet holds and is fixed on the circuit board.

Yet, above-mentioned existing electric connector is owing to fixing feet forms for the sidewall root edge from metal shell protrudes out downward vertically, thereby hold when being fixed on the circuit board when electric connector, the total height of electric connector and circuit board is at least the summation of electric connector and circuit board thickness, thereby the height of black box is bigger after causing electric connector to be welded on the circuit board, and this does not meet the compact day by day development trend requirement of current electronic product.

The utility model content

The purpose of this utility model is to provide a kind of electric connector at the defective that prior art exists, and can reduce the height of black box after this electric connector is welded on the circuit board.

For reaching above-mentioned purpose, the utility model electric connector comprises an insulating body, offers the several terminals draw-in groove on the insulating body, is inserted with a conducting terminal in the terminal draw-in groove respectively; Also be arranged with a metal shell on the insulating body, metal shell has the two side, and respectively stretching out apart from lower lip a distance of sidewall on the two side is formed with an extension, is extended with a ratchet clamping part on the extension downwards.

As mentioned above, when the utility model electric connector is fixed on the circuit board that offers accepting groove and holding hole, extension is placed on the circuit board respectively, ratchet clamping part plugs respectively and is fixed in the corresponding holding hole, the part that the while electric connector is positioned under the extension sinks to accepting groove, be welded to the height of back black box on the circuit board thereby reduced electric connector, so can adapt to the compact day by day development trend requirement of current electronic product.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model electric connector.

The stereogram that Fig. 2 sees from the rear for metal shell shown in Figure 1.

Fig. 3 is welded in the preceding stereogram of circuit board for electric connector shown in Figure 1.

Fig. 4 is the stereogram after electric connector shown in Figure 1 is welded in circuit board.

The description of reference numerals of each element is as follows among the figure:

Metal shell 10 diapires 100

Grab 101 mating grooves 102

Sidewall 110 extensions 111

Connecting portion 112 holding parts 113

Ribs 114 ratchet clamping parts 115

Chute 116 roofs 120

Compress shell fragment 121 buckle slots 122

Retaining sheet 123 gear portions 124

Insulating body 20 base portions 200

Spring eye 201 protuberances 202

Clamping part 203 support slots 204

Screens portion 205 boss 210

Plug Division 211 the first terminal draw-in grooves 212

The second terminal draw-in groove, 213 first conducting terminals 21

Second conducting terminal, 22 dust caps 30

Inserting groove 300 draw-in grooves 301

Open slot 302 projections 303

304 holding sections 305 of slotting

Spring 40 circuit boards 50

Accepting groove 51 holding hole 52

Auxiliary section 53

Embodiment

For describing technology contents of the present utility model, structural feature, the purpose that is realized and effect in detail, give explanation below in conjunction with specific embodiment and conjunction with figs. are detailed.

See also Fig. 1, the utility model electric connector comprises an insulating body 20, is inserted with several first conducting terminal 21 and several second conducting terminals 22 on the insulating body 20 respectively; Be arranged with a metal shell 10 on the insulating body 20, be slidingly installed with a dust cap 30 in the metal shell 10.Be equiped with two springs 40 between dust cap 30 and the insulating body 20.

This insulating body 20 has one and is rectangular-shaped base portion 200, the front end face of base portion 200 has protruded out a boss 210, the middle part of boss 210 also protrudes out a Plug Division 211, offer several the first terminal draw-in groove 212 and several second terminal draw-in grooves 213 on two surfaces up and down of Plug Division 211 respectively, these several the first terminal draw-in grooves 212 and the extension of the second terminal draw-in groove, 213 front and back also run through whole insulating body 20.Described first conducting terminal 21 is plugged in the first terminal draw-in groove 212 accordingly; Second conducting terminal 22 is plugged in the second terminal draw-in groove 213 accordingly.

Respectively protrude out a protuberance 202 on the left and right sides face of this base portion 200, and offered a spring eye 201 respectively in the both sides of boss 210 on the front end face of base portion 200.The middle part of these base portion 200 end faces has protruded out a clamping part 203.The rear portion of base portion 200 end faces offers two support slots 204, and these base portion 200 end faces have respectively protruded out a screens portion 205 at the edge of support slot 204.

See also Fig. 1 and Fig. 2, this metal shell 10 cuts bending by sheet metal and forms, and it has a diapire 100, two side 110 and a roof 120.The front-end edge of diapire 100 upwards protrudes out respectively at close 110 places, two side and bends out a grab 101, and the rear portion of diapire 100 offers a mating groove 102.

What the middle part of the roof 120 of metal shell 10 punched out a bending downwards compresses shell fragment 121, and middle part, roof 120 rear ends offers a buckle slot 122, and roof 120 rear ends are respectively die-cut formation two retaining sheets 123 of bending downwards in the both sides of buckle slot 122.The end edge of roof 120 is bending the gear portion 124 that extends to form respectively downwards near 110 places, two side.

Offer the chute 116 that extend front and back on the two side 110 of metal shell 10 respectively, the front end of two side 110 outwards protrudes out then bending backward respectively because of lower lip a distance of distance sidewall 110 and extends to form an extension 111, extension 111 comprises an a junction 112 and a holding parts 113, connecting portion 112 is bent into the arcs that are roughly 180 degree more backward after the front-end edge of sidewall 110 outwards protrudes out, holding parts 113 is from the formation that extends back of the end of connecting portion 112.This holding parts 113 has protruded out a ratchet clamping part 115 downwards, and punch forming has a ribs 114 that extends up and down on ratchet clamping part 115 and the holding parts 113, and this ribs 114 can increase the intensity of ratchet clamping part 115 and holding parts 113.

See also Fig. 1 and Fig. 3, be fixed in a time-out when insulating body 20 and metal shell 10 hold, this Plug Division 211 is contained in the metal shell 10, and protuberance 202 is held in the chute 116, and clamping part 203 is held in the buckle slot 122.Two retaining sheets 123 on the metal shell 10 support accordingly respectively and are stuck in the support slot 204 of insulating body 20, and the gear portion 124 of metal shell 10 keeps off on the rear end face of the base portion 200 of being located at insulating body 20.

This dust cap 30 is contained in the metal shell 10, offer one on the front end face of dust cap 30 and penetrate the also inserting groove 300 of horizontal expansion of this dust cap 30, inserting groove 300 inserts for the Plug Division 211 of insulating body 20, thereby dust cap 30 is enclosed within on the Plug Division 211, the junction of the front end face of this dust cap 30, two sides and bottom surface offers a draw-in groove 301, this draw-in groove 301 snaps in for the grab 101 of metal shell 10, thereby prevents that dust cap 30 from dropping out in metal shell 10.Also protruded out a projection 303 on the two sides of dust cap 30, projection 303 sliding establishing in the chute 116 that is fastened in metal shell 10.The middle part of the upper surface of this dust cap 30 offers an open slot 302, and the middle part of the rear end face of dust cap 30 offers a fluting 304, has also protruded out two holding sections 305 in the both sides of fluting 304 on the rear end face of dust cap 30.

One end of described two springs 40 inserts respectively in the respective springs hole 201 of insulating body 20, and its other end correspondence respectively is set on two holding sections 305.

When a butt connector inserts the utility model electric connector, this butt connector pushes dust cap 30 backward, dust cap 30 compresses spring 40 backward, the projection 303 of dust cap 30 slides in chute 116, the Plug Division 211 of insulating body 20 passes the inserting groove 300 of dust cap 30 and pegs graft with butt connector simultaneously, compress that shell fragment 121 passes that fluting fastens after 304 on butt connector so that the utility model electric connector and butt connector are stable pegs graft on the metal shell 10, thereby reach dustproof effect effectively by means of dust cap 30.

See also Fig. 3 and Fig. 4, this electric connector is fixed on the circuit board 50, offers an accepting groove 51 on this circuit board 50, protrudes out an auxiliary section 53 in the accepting groove 51, and this circuit board 50 also respectively offers a holding hole 52 in the both sides of accepting groove 51.When the utility model electric connector is installed on the circuit board 50, the auxiliary section 53 of circuit board 50 extend in the mating groove 102 of electric connector, the extension 111 of the utility model electric connector is placed on the circuit board 50, ratchet clamping part 115 plugs respectively and is fixed in the corresponding holding hole 52, the part that the while electric connector is positioned under the extension 111 sinks to accepting groove 51, thereby can reduce the whole height after electric connector and circuit board 50 welding, therefore can adapt to the compact day by day development trend of current electronic product.

Claims

1. an electric connector comprises an insulating body, offers the several terminals draw-in groove on the insulating body, is inserted with a conducting terminal in the terminal draw-in groove respectively; Also be arranged with a metal shell on the insulating body, metal shell has the two side, it is characterized in that: respectively stretching out apart from lower lip a distance of sidewall on the two side of this metal shell is formed with an extension, is extended with a ratchet clamping part on the extension downwards.

2. electric connector according to claim 1, it is characterized in that: extension has and is bent into the holding parts that the 180 degree connecting portions of arcs and an end from connecting portion extend back and form after a front-end edge from sidewall outwards protrudes out again backward, and described ratchet clamping part is extended to form downwards by holding parts.

3. electric connector according to claim 2 is characterized in that: punch forming has a ribs on ratchet clamping part and the holding parts.

4. electric connector according to claim 1, it is characterized in that: insulating body has a Plug Division, the two side of metal shell respectively offers the chute that extend front and back, be slidingly installed with a dust cap in the metal shell, offer an inserting groove that supplies the Plug Division to pass on the dust cap, and the both sides of dust cap have respectively protruded out a projection, and projection is slidingly installed in the chute of metal shell, is equiped with spring between insulating body and the dust cap.

5. electric connector according to claim 4, it is characterized in that: protruded out two holding sections on the dust cap, offer two spring eyes on the described insulating body, described spring has two, one end of this two spring is sheathed on respectively on the corresponding holding section, and the other end of this two spring is plugged in respectively in the corresponding spring eye.