CN201113032Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector, in particular to a universal serial bus interface electric connector. The electric connector mainly comprises an insulating body, a terminal which is accommodated in the insulating body, and a metal shell body which surrounds outside the insulating body. Aslope stopping-holding blocks are arranged on the two sides of the insulating body; the cross sections of the stopping-holding blocks approximately take the shape of a right-angle trapezoid that is the lower side thereof takes the shape of a plane, the upper side is a sloping side which inclines downwards along the inserting direction of the insulating body to the metal shell body; when the insulating body is inserted into the metal shell body, the metal shell body exerts the force vertical to the sloping side on the insulating body, thereby leading the lower sides of the stopping-holding blocks to cling to the metal shell body to ensure the good planeness between the stopping-holding blocks and the metal shell body.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, refers in particular to a kind of electric connector of USB (universal serial bus) type.

[background technology]

Past, the outside interface specification of PC is very complicated, for example keyboard will connect the interface of AT or PS/2, slide-mouse will connect COM or PS/2 interface, Modem will connect another COM interface, printer will meet ParallelPort (parallel interface), and rocking bar then will be robbed the Game/MIDI interface altogether with the MIDI device, and each external equipment all is to be connected with computer separately, if, can see that then many cables intertwine behind around to computer.In addition, except circuit disorderly with install fuzzy obscure, these circuits all cannot arbitrarily plug, must before start, install and normally to use, if during computer work, plug or extract, though computer can work on sometimes, but can stop in the time of most of responding, or the device that inserts can't work, even crashes, and serious also can burn out the mainboard interface.For addressing the above problem, many manufacturers just reach the external series connection mouth of setting up a kind of new spec, and to replace existing various external equipment interface, USB (USB) just arises at the historic moment in this way.Tentatively formulated the USB standard till now from 1994, the USB standard is brought in constant renewal in, and its standard also improves constantly, and little, light, the thin trend that also becomes the USB development.

In the process of USB miniaturization, the dimensional accuracy of its electric connector also requires more and more stricter.General USB comprises insulating body, is located in the terminal in the insulating body and is located in the outer metal shell of insulating body.Insulating body comprises base portion and from the tongue that base portion extends forward, is provided with blocked block in the base portion left and right sides, and the corresponding support slot that is provided with of metal shell, whereby, metal shell and insulating body are realized stable bond.As United States Patent (USP) 6,986,681 B2 have disclosed a kind of electric connector, the insulating body left and right sides of this electric connector is provided with blocked block equally, so, this blocked block is presented down setting, is unfavorable for guaranteeing the flatness between metal shell and insulating body, and this precision obviously can not be guaranteed under the more harsh condition of dimension precision requirement.

In view of above disappearance, be necessary to provide a kind of electric connector to overcome above-mentioned disappearance in fact.

[utility model content]

The utility model provides a kind of electric connector, and it can guarantee that the flatness between metal shell and insulating body can adapt to more harsh requirement.

A kind of electric connector of the utility model comprises insulating body substantially, is located in the terminal in the insulating body, and be located in the outer metal shell of insulating body, insulating body is provided with the blocked block of ramped shaped, the roughly rectangular trapezoidal shape of blocked block cross section is that its bottom is level, and the top is for inserting the hypotenuse that metal shell is directed downwards inclination along insulating body.Metal shell is provided with corresponding support slot.

Compared to prior art, there is following beneficial effect at least in the utility model, thus utilize that the blocked block hypotenuse is subjected in the assembling process perpendicular to the downward pressure of hypotenuse the support slot that blocked block bottom is pressed in the metal shell setting has been guaranteed flatness good between metal shell and insulating body.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view of the utility model electric connector.

Fig. 3 is the utility model electric connector right flank front view.

[embodiment]

As shown in Figure 1, be the three-dimensional combination figure of the utility model electric connector 100, it comprises insulating body 1 substantially, is located in the terminal 2 in the insulating body 1, and is located in the metal shell 3 outside the insulating body 1.

See also Fig. 2, it is the three-dimensional exploded view of the utility model electric connector 100, has disclosed the composition various piece of the utility model electric connector 100 in detail.

Insulating body 1 is formed by base portion 11 and from the tongue 12 that base portion 11 extends forward.Base portion 11 is substantially cuboid, and it comprises end face 111 and bottom surface 112, left side 113 and with it relative right side 114, leading flank 115 and with it the relative trailing flank 116 relative with it, and above-mentioned tongue 12 promptly extends forward in leading flank 115 places.Last end face 111 is provided with concave face 1111 in the position in the middle of it.Left and right end face 113,114 is respectively equipped with the button piece 1101 that is horizontally disposed ramped shaped blocked block 110 and is positioned at these blocked block 110 the place aheads from back to front.The roughly rectangular trapezoidal shape of these blocked block 110 cross sections is that its bottom is level, and the top is for inserting the hypotenuse that metal shell 3 is directed downwards inclination along insulating body 1.These base portion 11 trailing flanks 116 are recessed to form some narrows 1161, and these 1161 tops, tunnel are to there being plurality of terminals hole 1151.Above-mentioned tongue 12 is interval with plurality of terminals accepting groove 121, and this terminal containing slot 121 can be stablized with terminal hole 1151 and tunnel 1161 and accommodates terminal 2 in interior.

Terminal 2 is the front and back trend, there is a difference in height appropriate location in its back-end, such terminal 2 roughly is divided into and the contacted contact site 21 of corresponding butt connector, connecting portion 22 in abutting connection with this contact site 21, and the weld part 23 that connects in turn, this weld part 23 can be connected with printed circuit board (PCB) or corresponding cable etc. and realize the function that electrically conducts of this terminal 2.Above-mentioned connecting portion 22 is provided with card thorn 221.

Metal shell 3 is for sheet metal is made of one piece, and it roughly comprises upper plate 31, is adjacent to the side plate 32 of this upper plate 31 and is adjacent to side plate 32 and the lower plate 33 relative with upper plate 31.Upper plate 31 is extended with main elastic arm 311 and auxilliary elastic arm 312 forward in its back segment appropriate location, and in addition, at the upper plate 31 back segments baffle plate 313 that extended back, this baffle plate 313 is provided with opening 3130 for bending easily in its middle part.Above-mentioned routine plate 32 leading portions extend to form the above-mentioned lower plate 33 below the coated insulation body 1 downwards, and in appropriate location, lower plate 33 back, above-mentioned side plate 32 is extended with downwards and inserts pin 321, then is extended with welding foot 322 downwards in the rear end of this side plate 32.This side plate 32 is horizontally disposed catching groove 323 and support slot 324 by being distributed with successively behind the forward direction.Button piece 1101 on catching groove 323 and the insulating body 1 is interlocked, support slot 324 holds mutually with blocked block 110 on the insulating body 1, because blocked block 110 is ramped shaped, the roughly rectangular trapezoidal shape of blocked block 110 cross sections is that its bottom is level, the top is for inserting the hypotenuse that metal shell 3 is directed downwards inclination along insulating body 1, in assembling process, blocked block 110 tops are subjected to the downward pressure of metal shell 3, thereby make that blocked block 110 is following tighter with the 324 following applyings of metal shell 3 support slots, kept metal shell 3 like this in 1 good flatness of insulating body.

Introduce the concrete assembling process of this electric connector 100 below.The insulating body 1 that injection mo(u)lding is finished places the appropriate location, by automaton or craft terminal 2 is planted therebetween, terminal 2 bendings are shape expressed among Fig. 2, further bending forms weld part 23, and at this moment terminal 2 is accommodated in tunnel 1161 in the insulating body 1, terminal hole 1151 and the terminal containing slot 121.Then, from after will assemble the hollow space that insulating body 1 behind the terminal 2 inserts metal shell 3 forward, at this moment, button piece 1101 is fastened in the catching groove 323, blocked block 110 is fastened in the support slot 324, the support slot 324 of metal shell 3 is constantly exerted pressure to blocked block 110 in the anabolic process, thereby the bottom of blocked block 110 is pressed in support slot 324 bottoms securely.Then baffle plate 313 bendings of metal shell 3 are connected to the rear end of insulating body 1.

So far, whole electric connector 100 assemblings finish, in the use of reality, also need to insert in the printed circuit board (PCB) corresponding with this electric connector 100 with inserting pin 321, welding foot 322 is welded in corresponding zone on the printed circuit board (PCB), the weld part 23 of terminal 2 is welded in printed circuit board (PCB) or cable to realize the function that electrically conducts of terminal 2.

In the utility model electric connector 100, constantly exert pressure by the blocked block 110 to insulating body 1 in the assembling process, be pressed in the support slot bottom of metal shell 3, thereby guaranteed the excellent planar degree of 3 of insulating body 1 and metal shells.

The above only is two kinds of execution modes of the present utility model, it or not whole or unique execution mode, the variation of any equivalence that those of ordinary skills take technical solutions of the utility model by reading the utility model specification is claim of the present utility model and contains.

Claims (3)

1. an electric connector comprises insulating body substantially, is located in the terminal in the insulating body, and be located in the outer metal shell of insulating body, described insulating body comprises base portion and the tongue that extends forward from base portion, it is characterized in that: the described base portion left and right sides is provided with the ramped shaped blocked block, and metal shell is provided with and the corresponding support slot of blocked block.

2. electric connector as claimed in claim 1 is characterized in that: the roughly rectangular trapezoidal shape of described blocked block cross section is that its bottom is level, and the top is for inserting the hypotenuse that metal shell is directed downwards inclination along insulating body.

3. electric connector as claimed in claim 1 is characterized in that: described insulating body base portion leading portion is provided with the button piece, and above-mentioned blocked block is provided with in horizontal direction with the button piece, and metal shell is provided with and the corresponding catching groove of above-mentioned button piece.

Images