CN2481017Y

CN2481017Y - Electric connector with fastener

Info

Publication number: CN2481017Y
Application number: CN 01221364
Authority: CN
Inventors: 高茂森
Original assignee: HUAQI ELECTRONIC INDUSTRY Co Ltd
Current assignee: HUAQI ELECTRONIC INDUSTRY Co Ltd
Priority date: 2001-06-06
Filing date: 2001-06-06
Publication date: 2002-03-06
Anticipated expiration: 2011-06-06

Abstract

An electric connector with fastener comprises: an insulating body: the front surface of the insulating body is provided with a receiving groove for terminals wherein the inside is provided with a through hole penetrating the back surface of the insulating body, with two ends on the lengthwise direction respectively provided with an fixing groove formed in one piece; a plurality of electric conduction terminals which are held in the receiving groove for terminals and consists of a contact end and a joint end; a fixing device which is arranged in the fixing groove, consists of a welded part and a first bending part, forms an arc angle with a circuit board and is provided with a chamfer on the end edge; a leaning part and a second bending part on the end of the leaning part, wherein the end edge of the bending part is provided with more than one pair of interfering convex points on proper positions.

Description

Electric connector with fixture

The relevant a kind of electric connector of the utility model refers to a kind of electric connector with fixture especially.

In recent years; along with computer industry is progressive day by day; the computer user constantly increases the requirement of its function and speed; and computer equipment also develops towards slimming; therefore; for matching computer motherboard slimming development; electronic component thereon and electric connector are matching design; also reduced volume is utilized space on the motherboard to fill part; and all can adopt surface mount technology (Surface Mounting Technology usually; SMT) come solid welding connector terminals and fixture on motherboard in addition; yet, plant surface mount technology (SurfaceMounting Technology, SMT) electric connector of institute's solid welding at this point; usually can with dock electric connector and repeatedly insert/extract after; cause connector terminals and fixture by getting loose on the circuit board, and then influence the stability of signal of telecommunication transmission, as No. the 88200436th, relevant patent such as Taiwan patent; United States Patent (USP) the 5th; the electric connector that is disclosed in 186, No. 654 is such.As Fig. 3, described existing electric connector 60 has an insulating body 61, number terminal 62 and at least one holding device 63 that roughly is " ㄈ " type shape, wherein said " ㄈ " type holding device 63 is parallel to the foot 631 of circuit board 50, though can be with electric connector 60 with surface mount technology (SurfaceMounting Technology, SMT) it is welded on the circuit board 50, but can provide between described foot 631 and circuit board 50 to eat the tin area quite limited, solid welding intensity is also relatively low, therefore after repeatedly inserting/extracting, just might cause electric connector 60 and circuit board 50 to get loose and cause the signal transmission bad.

The purpose of this utility model is to provide a kind of electric connector with fixture, it has the comparatively ideal tin area of eating, with solid and reliablely with described electric connector solid welding on circuit board, thereby the phenomenon that gets loose that is caused under the situation of avoiding electric connector repeatedly inserting/extracting.

Another purpose of the present utility model is, a kind of electric connector with fixture is provided, it can avoid described fixture be subjected to external force pull and cause the distortion or get loose.

For achieving the above object, electric connector with fixture of the present utility model, be characterized in, it comprises: insulating body, it is the ennation of a longitudinally, its front surface is concaved with a terminal storage tank, offers the through hole that penetrates the insulating body rear surface in the terminal storage tank, and respectively is provided with integrated holddown groove in longitudinally two ends; Several conducting terminals are contained in the described terminal storage tank and comprise contact jaw and abutting end; Fixture, group are located in the holddown groove of insulating body and comprise a weld part and at first kink of its end, described first kink and circuit board form an arc angle, and the terminal edge of described first kink has the chamfering of an appropriate size; And a butting section and at second kink of its end, the end of described kink is provided with at least one pair of because of the appropriate location and interferes salient point.

Adopt such scheme of the present utility model, described weld part eat the tin enlarged areas, and in the arc angle be stained with glutinous tin liquor and also thicken simultaneously, make the solid welding intensity enhancing of described fixture; Therefore in addition, the end of described kink is provided with the interference salient point, can conceal in the lower surface of described holddown groove, can make the terminal edge of described first kink not be subjected to any external force factor and outwards pulls open, and then avoid the distortion of fixture or get loose.

Understand the purpose of this utility model, characteristics and advantage for clearer, the utility model is elaborated below in conjunction with accompanying drawing.

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

The front view of Fig. 2 the utility model electric connector;

The front view of the existing electric connector of Fig. 3.

Now please refer to shown in Figure 1, electric connector 30 of the present utility model comprises an insulating body 10 and fixture 20, wherein insulating body 10 is the ennation of longitudinally, and be concaved with a terminal storage tank 12 in front surface, with as with dock electric connector (not shown) combination and use, in described storage tank 12, offer the through hole 14 of several rear surfaces that penetrate insulating body 10, to accommodate several terminal (not shown)s in wherein, longitudinally two ends in above-mentioned insulating body 10 outwards respectively are provided with holddown groove 16 integrated with it in addition, described holddown groove 16 openwork parts become a C type shape haply, establish wherein for 20 groups to cooperate fixture.Above-mentioned several terminal comprises contact jaw (not shown) and abutting end (not shown), when described terminal group is loaded on above-mentioned through hole 14, the contact jaw (not shown) that is arranged in above-mentioned storage tank 12 electrically conducts with docking the formation of electric connector (not shown), and another abutting end (not shown) engages with circuit board 40 by surface mount technology.

Said fixing device 20 forms with the punching out of sheet metal one, become one " C " shape shape haply, first kinks 222 that it has weld part 22 and upwards bends from weld part 22 ends, and form the chamfering 224 of an appropriate size at above-mentioned first kink, 222 terminal edge, and the

butting section

24 and 24 ends bend inwards from the butting section second kink 242, and on the appropriate location of above-mentioned second kink, 242 terminal edge, convex with at least one pair of and interfere salient point 244.Said fixing device 20 is located in the holddown groove 16 along the arrow A direction and towards 10 groups of insulating bodies, at the terminal edge of above-mentioned second kink 242 because of convexing with a pair of interference salient point 244, when 20 groups of described fixtures are located in the holddown groove 16, above-mentioned interference salient point 244 just can form with the slit 162 of said fixing groove 16 and fix, so that the weld part of described fixture 20 22 when carrying out surface mount, can provide more firm soldering operation.

The thickness of first kink, 222 terminal edge is generally greater than the lower surface 164 of holddown groove 16, or because punch process technology instability, and cause described first kink 222 a little outwards to be offset, reason like that, outside the protruding lower surface 164 that is exposed to holddown groove 16 that can make all that the terminal edge of above-mentioned first kink 222 can be part or all of, therefore the new shape spy of this practicality forms the chamfering 224 of an appropriate size in the terminal edge of above-mentioned first kink 222, after the terminal edge of described kink 222 is made a chamfering 224, the terminal edge thickness of above-mentioned first kink 222 is haply less than lower surface 164 width of holddown groove 16, so the end of described kink 222 just conceals in the lower surface 164 of said fixing groove 16 (as shown in Figure 2), this makes the terminal edge of described first kink 222 not be subjected to any external force factor and outwards pulls open, and then avoids fixture 20 distortion or get loose.

See also shown in Figure 2, described fixture is gone in the insulating body 10 for 20 groups, and utilize above-mentioned interference salient point 244 to come snap fit in addition, when being beneficial to surface mount, weld part 22 firmly is welded on the circuit board 40, for further with weld part 22 solderings of fixture 20 on circuit board 40, the new shape spy of this practicality upwards is bent to form first kink 222 with the end of weld part 22, so that described first kink 222 and circuit board 40 between form one arc angle (shown in arrow P), so with weld part 22 during with the surface mount technology solid welding, tin liquor sticks between weld part 22 and circuit board 40 except being stained with, partly tin liquor also is stained with and is sticked in this arc angle (shown in arrow P), described like this weld part 22 eat the tin enlarged areas, and in above-mentioned arc angle be stained with glutinous tin liquor and also thicken simultaneously, make the solid welding intensity enhancing of described fixture 20.

In sum; above-mentioned detailed description only is the preferred embodiment of the new shape of this practicality; be not to be used to limit the utility model, any variation or equivalent replacement that person skilled in the art person is implemented under the situation of the essence spirit that does not change the new shape of this practicality all should be encompassed in the scope of patent protection of the utility model application.

Claims

1. electric connector with fixture is characterized in that it comprises:

Insulating body is the ennation of a longitudinally, and its front surface is concaved with a terminal storage tank, offers the through hole that penetrates the insulating body rear surface in the terminal storage tank, and respectively is provided with integrated holddown groove in longitudinally two ends;

Several conducting terminals are contained in the described terminal storage tank and comprise contact jaw and abutting end;

Fixture, group is located in the holddown groove of insulating body and comprises a weld part and at first kink of its end, described first kink and circuit board form an arc angle, and the terminal edge of described first kink has the chamfering of an appropriate size, and a butting section and at second kink of its end, the end of described kink is provided with at least one pair of because of the appropriate location and interferes salient point.

2. electric connector as claimed in claim 1 is characterized in that, described fixture is " C " type shape haply.

3. electric connector as claimed in claim 1 is characterized in that, the terminal edge thickness of described first kink is haply less than the lower surface width of holddown groove.

4. electric connector as claimed in claim 1 is characterized in that, one of them interferes the salient point perseverance to interfere salient point greater than another.

5. electric connector as claimed in claim 1 is characterized in that, described first kink and circuit board form an arc angle.