CN201820898U

CN201820898U - Electric connector

Info

Publication number: CN201820898U
Application number: CN 201020117418
Authority: CN
Inventors: 周吉生; 王军
Original assignee: Shenzhen Techaser Technologies Co Ltd
Current assignee: Shenzhen Techaser Technologies Co Ltd
Priority date: 2010-02-10
Filing date: 2010-02-10
Publication date: 2011-05-04
Anticipated expiration: 2020-02-10

Abstract

The utility model relates to an electric connector which can be installed onto a circuit board. The electric connector comprises a plurality of terminals, an insulating body used for fixing the terminals, and a metal shell used for covering the insulating body. Each terminal is provided with a welding part which stretches out of the insulating body. The metal shell is provided with a top, a bottom and two side parts which are used for connecting the top with the bottom. The rear end of the bottom of the metal shell is provided with stretching arms which are close to the two side parts and stretch rearwards. The stretching arms are arranged on the two sides of the welding parts of the terminals. A clamping arm vertically stretches downwards from the end part of each stretching arm. The clamping arms are fixed in corresponding holes on the circuit board. Thereby, the reinforcing of the connector and the circuit board can be realized, the clamping arms can be formed in a punching way, the accuracy requirement is low, the structure is simple, the realization is easy and the manufacturing cost can be saved.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, especially a kind of electric connector that is fixed on the circuit board.

[background technology]

Along with science and technology development, various portable equipments also develop rapidly, as mobile phone, digital camera, MP3 etc., their great majority can both be by carrying out transfer of data between USB (Universal Serial Bus) and the PC, and continuous development along with USB, micro USB more small-sized, more at a high speed more and more is applied in the portable equipment, is used for charging and transfer of data.Existing a kind of micro USB, it can be mounted to printed circuit board (PCB), comprise the insulating body of terminal, fixed terminal and the metal shell of coated insulation body, wherein metal shell comprises end face and the stop part that links to each other with end face, stop part comprises baffle plate that the end face from metal shell bends vertically downward, be tilted to down toward the outer side from the baffle plate lower end and be the adjutage that the Eight characters extends, and extend downwards from the adjutage end and, fix the relevant position that arm is connected to printed circuit board (PCB) perpendicular to the fixing arm of end face.Because stop part is as a whole, in manufacturing process, stop part is to be bent to form by the downward punching press of machine, if the control of bending angle is bad, causing fixing arm easily can not be connected to the relevant position of printed circuit board (PCB) and not reach fixing effect, if will reach good fixed effect, it is higher that it makes required precision, and corresponding production cost also can increase.

[utility model content]

The utility model provides a kind of electric connector, and it has good fixed effect and can reduce production costs.

For realizing purpose, the utility model provides following technical scheme: a kind of electric connector, it comprises the insulating body of a plurality of terminals, fixed terminal and the metal shell of coated insulation body, terminal has the weld part that stretches out outside the insulating body, the both sides that metal shell has top, bottom and connects the two, the stretching arm that the rear end, bottom of metal shell has contiguous both sides and extends back, stretching arm is positioned at the both sides of terminal weld part, the fixing arm that extend downward vertically since stretch arm end.

Compared with prior art, electric connector of the present utility model is by the formation stretching arm that extends back of the both sides, rear end, bottom at metal shell, since stretch arm end extends to form the fixing arm downward vertically, fixing arm is fixed in the respective aperture on the circuit board, realize the reinforcing of electric connector and circuit board, fix the arm punching press and form that required precision is low, simple realization easily can reduce production costs.

[description of drawings]

Fig. 1 the utility model electric connector stereogram.

Fig. 2 is another angle stereogram of metallic shell of electric connector body shown in Figure 1.

Fig. 3 is another angle stereogram of electric connector insulating body shown in Figure 1.

Another angle stereogram of Fig. 4 the utility model electric connector.

Fig. 5 is an electric connector three-dimensional exploded view shown in Figure 4.

[embodiment]

According to Fig. 1 to shown in Figure 5, electric connector can be fixed in printed circuit board (PCB) (not shown) and with butt connector (not shown) snap close, it comprises a plurality of terminals 1, the insulating body 2 of fixed terminal 1 and the metal shell 3 of coated insulation body 2.

Terminal 1 comprises contact site 10, weld part 11 and the connecting portion 12 that vertically connects contact site and weld part, and wherein contact site 10 is positioned at the both sides of connecting portion with weld part 11 and is horizontally disposed with.

Insulating body 2 comprises the hyoplastron 21 that main part 20 and autonomous body extend forward.

Main part 20 has bottom surface 24, end face 25, rear end face 26 and two sides 31.Two corresponding depressed parts 53 are arranged from end face 25 is recessed down, depressed part 53 contiguous separately the side and be communicated to front end with hyoplastron 21 adjacency, 24 are extruded with rectangle projection 30 downwards from the bottom surface, an end face of rectangle projection 30 links to each other with

rear end face

26,24 offers groove 27 from the bottom surface around pane projection 30.Give prominence to two relative protuberances 50 of formation at 31 places, contiguous two sides backward from rear end face, protuberance has medial surface 51, medial surface 51 is connected to end face 25 perpendicular to bottom surface 24 and by inclined-plane 52, the two ends of bottom surface 24 have the projection 28 to lower convexity, side 31 links to each other by second inclined-plane 29 with bottom surface 24, second inclined-plane, 29 contiguous projections 28.

Hyoplastron 21 has a plurality of terminal containing slots 22 that extend to the main part fixed terminal from front end, and terminal containing slot is arranged in parallel with each other.The contact site 10 of terminal 1 is contained in the terminal containing slot 22, the connecting portion 12 of terminal is covered by in the main part 20 of insulating body, the weld part 11 of terminal stretches out and the parallel bottom surface that pastes rectangle projection 30 from bottom surface rectangle projection 30, the weld part 12 of terminal can be welded on the printed circuit board (PCB), and terminal 1 is by being fixed in the insulating body 2 with insulating body 2 injection mo(u)ldings.

Metal shell 3 has top 31, bottom 32 and both sides 33, top 31 and bottom 32 are parallel to each other, both sides connect top and bottom, the front end of top, bottom and both sides constituted the butt joint opening and from the top, the outwardly-

bent formation flange

55,56,57 of front end of bottom and both sides.

The 31 adjacent front end places at the metal shell top, 31 offer the recess of getting through 34 from the top, and the recess front end has cam part 35 and protrudes in top 31, recess 34 and cam part 35 acting in conjunction snap close butt connectors.31 have position limit arm 54 with insulating body depressed part 53 opposite position places at the top, and position limit arm 54 presses down from the top and is connected in the depressed part 53, and depressed part 53 actings in conjunction of itself and insulating body 2 prevented slotting.In addition, be extended with baffle plate 36 vertically downward from the top rear centre position, 31 rear ends, top have two toward each other and the adjutage 37 of adjacent side portion, and adjutage 37 extends to the inside and points to baffle plate 36, the downward-sloping fixing arm 38 that is extended with from the adjutage end.

The stretching arm 39 that 32 rear ends, bottom have contiguous both sides 33 and extend back, the fixing arm 40 that extend downward vertically since stretch arm 39 ends, stretching arm is positioned at the both sides of terminal weld part.32 are connected place, nearly centre position and have second stretching arm 41 that extends to both sides with sidepiece 33 in the bottom, and that extends downward vertically from second stretching arm, 41 ends second fixes arm 42.When forming second stretching arm, on sidepiece, form opening 43 with the second stretching arm relative position place.Relative position place at each sidepiece 33 rear end and stretching arm is formed with breach 45, has at breach 45 adjacent back end places to be tilted to down and second fixing arm 44 that extends to the inside.

After metal shell 3 and insulating body 2 assemblings, the position limit arm 54 of metal shell 3 is contained in the depressed part 53 of insulating body 2; The projection 28 of insulating body 2 stretches out from the breach 45 of metal shell 3; The fixing arm 38 of metal shell 3 overlays on the inclined-plane 52 of protuberance 50 of insulating body 2 and is stuck in rear end face 26 rear sides of insulating body 2; Second fixing arm 44 of metal shell 3 overlays on second inclined-plane 29 of insulating body 2 and is stuck in projection 28 rear sides; The rear end face 26 of the baffle plate 36 cover part insulating bodies 2 of metal shell 3.The position limit arm 54 of

metal shell

3 and 53 effects of the depressed part of insulating body 2, the breach coupling of the projection of insulating body 2 and metal shell 3, play and prevented that slotting effect, fixing arm 38, second fixing arm 44 and baffle plate 36 actings in conjunction of metal shell 3 from preventing that in the corresponding position of insulating body 2 insulating body 2 is to backward shift or disengaging metal shell 3.When the weld part of terminal was soldered to printed circuit board (PCB), the fixing arm of metal shell 3 40, second fixed arm 42 and is fixed in the corresponding hole of circuit board, made more firm being fixed on the printed circuit board (PCB) of electric connector.

Compared with prior art, electric connector of the present utility model extends back by the both sides, 32 rear end, bottom at metal shell 3 and forms stretching arm 39, since stretch arm 39 ends extend to form downward vertically and fix arm 40, fixing arm 40 is fixed in the respective aperture on the circuit board, realize the reinforcing of electric connector and circuit board, fix arm 40 punching presses and form that required precision is low, simple realization easily can reduce production costs.

Claims

1. electric connector, it comprises the insulating body of a plurality of terminals, fixed terminal and the metal shell of coated insulation body, terminal has the weld part that stretches out outside the insulating body, the both sides that metal shell has top, bottom and connects the two, it is characterized in that: the stretching arm that the rear end, bottom of metal shell has contiguous both sides and extends back, stretching arm is positioned at the both sides of terminal weld part, the fixing arm that extend downward vertically since stretch arm end.

2. electric connector as claimed in claim 1 is characterized in that: insulating body comprises main part and hyoplastron, and main part comprises end face, bottom surface, two sides and rear end face, depressed part is arranged from end face is recessed down, and depressed part is communicated to the end face with the hyoplastron adjacency.

3. electric connector as claimed in claim 2 is characterized in that: the top of described metal shell comprises with the insulating body depressed part corresponding to lower recess and be connected to position limit arm in the depressed part.

4. electric connector as claimed in claim 2 is characterized in that: be extended with baffle plate vertically downward from described metal shell top rear, the rear end face of the parallel and contact insulating body main part of baffle plate.

5. electric connector as claimed in claim 2, it is characterized in that: give prominence to forming two relative protuberances backward from rear end face at place, the contiguous two sides of insulating body, protuberance has medial surface, medial surface is connected to end face perpendicular to the bottom surface and by the inclined-plane, the two ends of bottom surface have the projection to lower convexity, the side links to each other with underrun second inclined-plane, the contiguous projection in second inclined-plane, the top rear adjacent side portion place of metal shell has extends sensing baffle plate adjutage respect to one another to the inside, from the downward-sloping fixing arm that is extended with of adjutage front end, the sidepiece rear end has second fixing arm that is tilted to down and extends to the inside.

6. electric connector as claimed in claim 2 is characterized in that: the bottom surface from described insulating body is extruded with the rectangle projection downwards.