CN200953398Y

CN200953398Y - Electric connector

Info

Publication number: CN200953398Y
Application number: CNU2006201330584U
Authority: CN
Inventors: 蔡周旋
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-08-30
Filing date: 2006-08-30
Publication date: 2007-09-26
Anticipated expiration: 2016-08-30

Abstract

The utility model provide a electric connector which comprises a plastic base; wherein the plastic base is provided with the two side walls and takes a shape of a long strip, the two side walls are provided with two rows of terminal grooves in the radial arrangement, a long-strip connecting groove is formed between the terminal grooves, the opening of the connecting groove is upward and provided with a bottom surface, the groove extending upward and downward is arranged near the side wall in the terminal groove; a plurality of terminals are arranged in the terminal groove of the plastic base, one end of the plastic base is seriatim provided with an elastic arm, a positioning part and a pin part from top to bottom, the positioning part is close to the side wall, the lower section of the positioning part is provided with a fixed part with a wider plate surface and clamped with the groove of the terminal groove, the elastic arm bends from the upper end of the positioning part to the bulge of the connecting groove and is provided with a contact part bulge to the connecting groove, and the pin part stretches out of the lower end of the plastic base; the extension height of the positioning part of the terminal exceeds the bottom height of the connecting groove, and the extension height of the groove of the plastic base is lower than the height of the bottom.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, particularly a kind of edge card (CardEdge) electric connector

Background technology

See also Fig. 1 and Fig. 2, be a kind of edge card (Card Edge) electric connector, it connects an edge cassette circuit board 20, the two sides, one edge of this circuit board 20 is respectively equipped with spaced contact 21, it includes: a plastics pedestal 10, and it is provided with the spaced terminal groove 11 of two rows, forms the link slot 12 of a strip between described two row's terminal grooves 11, this terminal groove 11 is provided with the draw-in groove 14 that extends up and down, and this draw-in groove 14 is lower than the bottom surface 13 of link slot 12; And a plurality of terminals 15, it is located at the terminal groove 11 of this plastics pedestal 10, it is provided with an elastic arm 16, a fixed part 17 and a pin portion 18, this elastic arm 16 is provided with a contact site 19 that protrudes and is electrically connected with the contact of this circuit board 20, the plate face broad of this fixed part 18, with draw-in groove 14 fastenings of terminal groove, this plastics pedestal lower end is stretched out by this pin portion 17.

When circuit board 20 these plastics pedestals 10 of insertion, each contact on circuit board 20 two sides and contact site 19 Elastic Contact of each terminal 15 reach electrical connection whereby and clamp this circuit board 20 by each terminal 15 elasticity at this moment.

Being configured on the clamping circuit board of prior art, mainly be that contact site 19 elasticity by these a plurality of terminals 15 clamp this circuit board 20, for being inserted in, circuit board 20 forms good staying power in the link slot 12, so terminal 15 need have suitable elastic force, therefore terminal must have enough material thicknesses, can not use too thin sheet metal in the manufacturing, be difficult to reduce material cost.

In addition, because the height of the fixed part 17 of terminal 15 and draw-in groove 14 fastenings of terminal groove 11 is lower than the bottom surface 13 of link slot 12, so make the elastic arm 16 of terminal 15 have suitable length, because the long more then elastic force of length of elastic arm 16 is more little, therefore need use thicker material more, there is enough elastic force the side.

The utility model content

Main purpose of the present utility model is to provide a kind of electric connector, its height that extends by the location division that makes terminal surpasses the bottom surface height of link slot, make the elastic arm of terminal shorten and can have stronger elastic force to compress circuit board, thereby reduce the material cost of terminal.

Another main purpose of the present utility model is to provide a kind of electric connector, is lower than the bottom surface of link slot by the height that makes terminal and draw-in groove fastening, and so not only assembling easily and the plastics pedestal fastening strength that can bear terminal.

Secondary objective of the present utility model is to provide a kind of electric connector, can gain in strength by the fin design and save plastic material in its outside, plastics pedestal two side.

For achieving the above object, the utility model provides a kind of electric connector, it connects a circuit board, the two sides, one edge of this circuit board is respectively equipped with spaced contact, it includes: a plastics pedestal, it is provided with the two side and is the lengthwise strip, it is provided with the spaced terminal groove of two rows, form the link slot of a lengthwise strip between this two rows terminal groove, the opening of this link slot up and be provided with a bottom surface, so as to making this circuit board from top to bottom insert connection, be provided with the draw-in groove that extends up and down near sidewall in this terminal groove; And a plurality of terminals, it is located at the terminal groove of this plastics pedestal, it from top to bottom is integrally formed with an elastic arm, a location division in regular turn, reaches a pin portion, this location division is resisted against sidewall, the location division hypomere is provided with the draw-in groove fastening of the fixed part and the terminal groove of plate face broad, self-align upper end bending of this elastic arm protruded to this link slot, and it is provided with a contact site that is protruding to link slot and is electrically connected with the contact of this circuit board, and this plastics pedestal lower end is stretched out by this pin portion; It is characterized in that the extended height of the location division of this terminal surpasses the bottom surface height of link slot, the extended height of the draw-in groove of this plastics pedestal is lower than this bottom surface height.

Surpass the bottom surface height of link slot by the height that this location division is extended, make the length of elastic arm shorten relatively, therefore can strengthen the elastic force of clamping circuit board, thereby terminal can use thin metal material on making, and then reduce material cost.

Above-mentioned and other purpose, advantage and characteristic of the present utility model by the detailed description of following preferred embodiment and with reference to attached can be clearer.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing electric connector and circuit board.

Fig. 2 is the combination section of existing electric connector and circuit board.

Fig. 3 is the three-dimensional exploded view of the utility model first preferred embodiment and circuit board.

Fig. 4 is the side-looking sectional exploded view of the utility model first preferred embodiment and circuit board.

Fig. 5 is a pseudosection on the plastics pedestal of the utility model first preferred embodiment.

Fig. 6 is the terminal stereogram of the utility model first preferred embodiment.

Fig. 7 is the side-looking section constitutional diagram of the utility model first preferred embodiment and circuit board.

Fig. 8 is the side-looking sectional exploded view of the utility model second preferred embodiment and circuit board.

Fig. 9 is the terminal stereogram of the utility model second preferred embodiment.

Figure 10 is the side-looking section constitutional diagram of the utility model second preferred embodiment and circuit board.

Figure 11 is the three-dimensional exploded view of the utility model the 3rd preferred embodiment and circuit board.

Figure 12 is the side-looking sectional exploded view of the utility model the 3rd preferred embodiment and circuit board.

Embodiment

See also Fig. 3 and Fig. 4, present embodiment is a kind of electric connector (generally being called for short PCIEXPRESS), it connects an edge cassette circuit board 20, the two sides, one edge of this circuit board 20 is respectively equipped with spaced contact 21, and a side is provided with a groove 24, it includes: a plastics pedestal 30 and a plurality of terminal 40, wherein:

This plastics pedestal 30 is provided with two side 33 and is the lengthwise strip, it is provided with the spaced terminal groove 31 of two rows, form the link slot 32 of a strip between this two rows terminal groove 31, the opening of this link slot 32 up and be provided with a bottom surface 34, so as to making this circuit board 20 from top to bottom insert connection, please cooperate ginseng figure 5, be provided with the draw-in groove 35 that extends up and down near sidewall 33 in this terminal groove 31, the bottom surface 34 of this link slot 32 of aspect ratio that this draw-in groove 35 is extended is low, these 33 outsides, two side are provided with convex surface 36 and concave surface 37, this concave surface 37 is provided with a plurality of spaced vertical fins 38 and two horizontal fins 39 are connected with this vertical fin 38, these a plurality of vertical fins 38 and two horizontal fins 39 flush with this convex surface 36, in addition, these plastics pedestal 30 1 sides are provided with a bayonet unit 310, this bayonet unit 310 is the groove 24 of this circuit board one side of buckle movably, make this circuit board 20 can't upwards break away from this plastics pedestal 30, this bayonet unit 310 is not characteristics of the present utility model, so do not give unnecessary details structure in detail at this.

Please cooperate ginseng figure 6, this terminal 40 is located at the terminal groove 31 of this plastics pedestal 30, and it from top to bottom is integrally formed with an elastic arm 41, a location division 42 in regular turn, reaches a pin portion 43; This location division 42 is resisted against sidewall 33, and its extended height surpasses bottom surface 34 height of link slot 33, and its hypomere is provided with draw-in groove 35 fastenings of fixed part 44 with the terminal groove of plate face broad, and the bottom surface 34 of the aspect ratio link slot 33 of both fastenings is low; 41 self-align 42 upper end bendings of this elastic arm are protruded to this link slot 32, and it is provided with a contact site 45 that is protruding to link slot 32 and is electrically connected with the contact 21 of this circuit board 20; This plastics pedestal 30 lower ends are stretched out by this pin portion 43.

See also Fig. 7, when circuit board 20 inserts this plastics pedestal 30, this moment circuit board 20 two sides contact and contact site 45 Elastic Contact of each terminal 40, at this moment, because the height that extend this location division 42 surpasses bottom surface 34 height of link slot, so the length of elastic arm 41 has shortened relatively, so can strengthen the elastic force of clamping circuit board, therefore terminal 40 can use thin metal material on making, thereby reduces material cost.In addition because the raising of the location division of each terminal, when terminal is subjected to the compressing strength of

circuit board

20,42 upper ends, location division are the point of application 48 to sidewall 33, because this point of application 48 improves and will make the 33 easy buckling deformations of plastics pedestal two side, but the horizontal fin 39 by these 33 outsides, two side can strengthen intensity with this vertical fin 38, prevents two side 33 buckling deformations.Certainly also can strengthen, but fin of the present utility model design be except can strengthening the structure, but also tubercle is economized plastic material, reduces manufacturing cost by the thickness that increases sidewall 33.

The utlity model has following advantage:

1. the elastic arm 41 of terminal 40 shortens, and makes elastic force strengthen, and can use than thin material on making, and reduces manufacturing cost.

2. outside, the two side of plastics pedestal is set as male and fomale(M﹠F) and cooperates the fin design, so can reduce plastic material and strengthen side wall strength.

3. terminal 40 and the height of draw-in groove 35 fastenings are lower than the bottom surface 34 of link slot 33, so not only assembling easily, and because of the plastic seat body structure of 34 belows, bottom surface of link slot 33 is stronger, the fastening strength that can bear terminal.

See also Fig. 8, Fig. 9 and Figure 10, be the utility model second embodiment, it is roughly identical with first embodiment, it is bottom surface 34 height that the extended height of the location division 42 of terminal 40 surpasses link slot 32 equally, the extended height of the draw-in groove 35 of this plastics pedestal 30 is lower than this bottom surface 34 height, its difference is that the inner face stage casing 312 of two side 33 of the plastics pedestal 30 of present embodiment comparatively protrudes, make with inner face hypomere 313 and form an inclined-plane 314, location division 42 epimeres of terminal 40 then cooperate the inclined-plane 314 of sidewall to be set as bending, so as to against sidewall 33, so can strengthen the intensity in 33 stage casings, two side, do not have influence on simultaneously the specification of existing product, the width that is outward appearance is constant, and because the inner face hypomere 313 of two side 33 does not thicken, pin portion 43 takes back or right distance so can not have influence on.

See also Figure 11 and Figure 12, be the utility model the 3rd embodiment, identical with first embodiment haply, it is bottom surface 34 height that the extended height of the location division 42 of terminal 40 surpasses link slot 32 equally, the extended height of the draw-in groove 35 of this plastics pedestal 30 is lower than this bottom surface 34 height, its 33 outsides, plastics pedestal 30 two sides are provided with convex surface 36 and concave surface 37 equally, its difference is that this concave surface 37 only is provided with a plurality of spaced vertical fins 38, be not provided with horizontal fin, so make the processing of injection-moulding plastic more or less freely.

The specific embodiment of being mentioned in the detailed description of preferred embodiment only is in order to be illustrated more clearly in technology contents of the present utility model, and be not with the utility model narrow sense be limited to this embodiment, under the situation that does not exceed the utility model spirit and following claim scope, can make many variations and implement.

Description of reference numerals

Plastic base body 10 terminal grooves 11 link slots 12 bottom surfaces 14

Draw-in groove 13 terminals 15 elastic arms 16 fixed parts 17

Pin section 18 contact sites, 19 circuit boards, 20 contacts 21

Circuit board 20 contacts 21 grooves 24

Plastic base body 30 terminal grooves 31 link slots 32 sidewalls 33

Bottom surface 34 draw-in grooves, 35 convex surfaces, 36 concave surfaces 37

Vertical fin 38 horizontal fin 39 bayonet units 310 inner face stage casings 312

Inner face hypomere 313 inclined-planes 314 terminals, 40 elastic arms 41

Location division 42 fixed parts, 44 contact sites, 45 pin sections 43

The point of application 48

Claims

1. electric connector, it connects a circuit board, and the two sides, an edge of this circuit board is respectively equipped with spaced contact, and it includes:

One plastics pedestal, it is provided with the two side and is the lengthwise strip, it is provided with the spaced terminal groove of two rows, form the link slot of a lengthwise strip between this two rows terminal groove, the opening of this link slot up and be provided with a bottom surface, so as to making this circuit board from top to bottom insert connection, be provided with the draw-in groove that extends up and down near sidewall in this terminal groove; And

A plurality of terminals, it is located at the terminal groove of this plastics pedestal, it from top to bottom is integrally formed with an elastic arm, a location division in regular turn, reaches a pin portion, this location division is resisted against sidewall, the location division hypomere is provided with the draw-in groove fastening of the fixed part and the terminal groove of plate face broad, self-align upper end bending of this elastic arm protruded to this link slot, and it is provided with a contact site that is protruding to link slot and is electrically connected with the contact of this circuit board, and this plastics pedestal lower end is stretched out by this pin portion;

It is characterized in that the extended height of the location division of this terminal surpasses the bottom surface height of link slot, the extended height of the draw-in groove of this plastics pedestal is lower than this bottom surface height.

2. electric connector according to claim 1 is characterized in that, the outside, two side of this plastics pedestal is provided with concave surface and convex surface, and this concave surface is provided with a plurality of spaced vertical fins.

3. electric connector according to claim 1 is characterized in that, this concave surface more is provided with at least one horizontal fin and is connected with this vertical fin.

4. electric connector according to claim 3 is characterized in that, is provided with two horizontal fins.

5. electric connector according to claim 2 is characterized in that, these a plurality of vertical fins flush with this convex surface.

6. electric connector according to claim 1, it is characterized in that the inner face stage casing of the two side of this plastics pedestal is comparatively protruded, make with the inner face hypomere and form an inclined-plane, the location division epimere of terminal then cooperates the inclined-plane of sidewall to be set as bending, so as to against sidewall.