CN1088926C

CN1088926C - Earth element of high density connector

Info

Publication number: CN1088926C
Application number: CN98105358A
Authority: CN
Inventors: 何有明; 黄建荣; 陈翔斌
Original assignee: Hon Hai Precision Industry Co Ltd
Current assignee: Hon Hai Precision Industry Co Ltd
Priority date: 1998-02-27
Filing date: 1998-02-27
Publication date: 2002-08-07
Anticipated expiration: 2018-02-27
Also published as: CN1227429A

Abstract

The present invention relates to an earth element for a high-density connector, which is provided with a first contact arm and a second contact arm which are separated from each other, wherein contact parts and interference parts are respectively formed on the first contact arm and the second contact arm by wires; one of the contact arm is provided with an earth foot, and the other contact arm is provided with a communicating foot enabling the first contact arm and the second contact arm to be in bridge connection to form an access. The present invention has the advantages of simply assembly and can not damage an inserting circuit board.

Description

Earth element of high density connector

The present invention relates to a kind of earth element of high density connector, particularly relate to a kind of can scratch the butt joint circuit board, and dock really with circuit board, stable signal transmission, be assembled in the earth element of high-density connector.

Computer high-speed cruising and multi-functional design have become trend, for answering this trend in the top, being used for the connector of transmission signals must can cooperate with ancillary equipment in minimum space, the alignment arrangements of connector inner terminal need be the high density setting, so-called highdensity alignment arrangements is meant that the spacing arrangement between connector upper terminal and the terminal is closeer, the quantity of terminal is more, so that can transmit a greater variety of information.Because the number of terminals of this kind high-density connector is a lot, the spacing between terminal and the terminal is very near, and the phase mutual interference of signal generally is provided with earth element between terminal and terminal in high-density connector when avoiding the signal transmission, gets rid of noise by grounded circuit.As No. the 79109775th, 80208341, Taiwan patent application and United States Patent (USP) the 5th, 026,292,5,051, No. 099 grade all is provided with earth element.

Though the earth terminal of above-mentioned known high-density connector has the function that suppresses noise, because of the problem of structure own make conduct undesirable, also easy damaged butt joint circuit board.See also Fig. 1, the earth terminal 3 of the known connector shown in the figure has two contact arms 30, two and interferes an arm 31 and a grounding leg 32, wherein the top of two contact arms 30 is provided with contact zone 301 relatively, be connected with the ground signalling contact of butt joint circuit board, but this contact zone 301 forms the section of tearing through punching press, therefore circuit board is easy to scrape damage when pegging graft, so that influence conducts the useful life of effect and circuit board.And two contact arms 30 are extended upward by the both sides of the base portion 33 of terminal 3, though the contact force that provides is bigger, the corresponding rigidity of contact arm 30 that causes is bigger, adds the sharp keen section of contact zone 301, and are just more serious to the damage of circuit board.

Known earth terminal is a sheet, can not form continuous serial connection on strip, so can't terminal group be contained on the connector, need with single terminal assembling with whole row's mode, like this, the cumbersome inconvenience of assembling operation in batch.

In addition, between two contact arms and all be waste part near the grounding leg, and owing to the structure of terminal is a sheet, limited area can not be fully utilized on the strip, so waste material is many after the punch forming during known earth terminal moulding, and economic benefit is low.

The object of the present invention is to provide a kind of conduct effective, can not damage the butt joint circuit board earth element of high density connector, the structural design of this earth element of mat, making itself and circuit board contact area is even surface, can not damage circuit board.

The object of the present invention is achieved like this, and a kind of earth element of high density connector promptly is provided, and is used for being communicated with and ground connection with circuit board, and this earth element comprises: first contact arm has contact site and interference part; Second contact arm also is provided with contact site and interference part on it; One grounding leg is made of a contact arm extension in described first and second contact arm; One is communicated with pin, extended by the contact arm that does not extend grounding leg in aforementioned first and second contact arm and to be constituted, and described first and second contact arm can be communicated with, wherein, described first and second contact arm includes a upright base portion, form to have convex arc and to keep the contact site of suitable spacing, described convex arc tail end extended spot also to be provided with one at the one end and can support and terminate in the connector wall and have the backing arm of strengthening the convex arc contact force with described base portion.

The present invention also provides a kind of high-density connector, and it comprises: an insulation shell, have plug surface, solder side and central slot, and on described plug surface and described solder side, be provided with several signal terminals that run through and earth terminal accepting hole; Described several signal terminals are arranged at aforementioned signal terminal accepting hole, and described signal terminal has contact site, interference part and pin portion; Earth terminal, be located at aforementioned earth terminal accepting hole, described earth terminal comprises having first of contact site and interference part, two contact arms, an and grounding leg, described grounding leg is by aforementioned first, a contact arm in two contact arms extends formation, and one have described first, the connection pin that two contact arms are communicated with, described connection pin is by aforementioned first, the contact arm that does not extend grounding leg in two contact arms extends and forms, wherein, described first, two contact arms include a upright base portion, form at the one end and to have convex arc and to keep the contact site of suitable spacing with described base portion, described convex arc tail end extended spot also is provided with one and can supports and terminate in the connector wall, and has the backing arm of strengthening the convex arc contact force.

The advantage of apparatus of the present invention is, the structure that it improves earth element is inserted its bootable circuit board smoothly, can the scratch circuit board, prolong circuit board useful life, and signal of telecommunication conducting is stable really, earth element is made simple, easy to assembly, reduce cost, improve its useful life.

Below in conjunction with accompanying drawing, embodiments of the invention are described, wherein:

Fig. 1 is the stereogram of known earth element of high density connector;

Fig. 2 is the stereogram of earth element of high density connector of the present invention;

Fig. 3 is assembled in the three-dimensional cutaway view of high-density connector for earth element of the present invention;

Fig. 4 is the longitudinal sectional view of Fig. 3.

See also Fig. 2, high density earth element 1 of the present invention comprises: first contact arm 10, second contact arm 11, grounding leg 12 and connection pin 13, wherein first contact arm 10 comprises a upright base portion 101, be bent to form out convex arc 102 at the one end, this convex arc 102 has two little bendings 1021 and is off normal setting slightly, its peak can contact with the ground signalling contact of butt joint circuit board (not shown), and keep suitable spacing by convex arc 102 extension downwards and with base portion 101, the tail end of convex arc 102 is formed slopely backing arm 103 to side, can support insulation shell (not shown) wall that terminates in high-density connector, strengthen convex arc 102 contact forces, that is this backing arm 103 has contact force preferably can make the grafting of convex arc 102 and circuit board the time.Below base portion 101, be provided with interference solid, interference engagement when being used to assemble with protruding thorn 104.And be bent into a grounding leg 12 by base portion 101 extension downwards at protruding thorn 104 places and to side, be used to be plugged in motherboard.

This second contact arm 11, identical with first contact arm 10, end at base portion 111 is bent to form out convex arc 112, this convex arc 112 has two little bendings 1121 and is off normal setting slightly, its peak can contact with the ground signalling contact of butt joint circuit board (not shown), and keep suitable spacing by convex arc 112 extension downwards and with base portion 111, these convex arc 112 tail ends are formed slopely backing arm 113 to side, can support insulation shell (not shown) wall that terminates in high-density connector, strengthen convex arc 112 contact forces, that is this backing arm 113 has contact force preferably can make the grafting of convex arc 112 and circuit board the time, and can improve this

contact arm

10,11 elastoresistance fatigue.In addition, below base portion 111, be provided with interference solid, interference engagement when being used to assemble with protruding thorn 114.And the base portion 111 at protruding thorn 114 places extends downwards and to the roughly along continuous straight runs bending of backing arm 113 1 sides, be bent into a connection pin 13 downwards, is used for the assembling back and contacts with first contact arm 10, and form path.

See also Fig. 3, it is assembled in the embodiment of high-density connector 2 insulation shells 20 for earth element 1 of the present invention, as shown in the figure, this insulation shell 20 has plug surface 201, solder side 211 and central conduit 212, wherein plug surface 201 is provided with the conducting terminal accepting hole 213 that several run through with solder side 211, be used for ccontaining conducting terminal 215, and be provided with earth terminal accepting hole 214, be used to accommodate earth terminal 1 in solder side 211 1 sides of insulation shell 20.Central authorities' conduit 212 is used for power circuit board 40 and pegs graft.Please consult Fig. 4 again, when this earth element 1 was upwards assembled by solder side 211, the protruding thorn 104 of this on the

mat base portion

101 and 111 and 114 with the inwall interference engagement of insulation shell 20, can be fixed on first and

second contact arm

10,11 on the insulation shell 20.After the assembling, this backing arm was resisted against the internal face 201 of insulation shell 20 in 103,113 minutes from both sides, can make the convex arc 102,112 of first and

second contact arm

10,11 have stronger contact force by this, that is when circuit board 40 is planted, can conduct with comparatively ideal power of inserting and putting and circuit board 40.Be communicated with pin 13 assembling back its vertical bending ends of mat and grounding leg 12 against contacting, form the loop, with circuit board 40 ground connection, and conducted signal, the inhibition noise jamming.

In addition, first and second contact arm of earth element 1 of the

present invention

10,11 is bent into by wire rod, and the convex arc 102,112 that electrically contacts with circuit board 40 is a level and smooth contact-making surface.

Below in conjunction with the embodiments the present invention is described, but the foregoing description right and wrong are determinate, modification of being done according to the present invention or variation all are included in the appended claim of the present invention.

Claims

1. an earth element of high density connector is used for being communicated with and ground connection with circuit board, it is characterized in that described earth element comprises:

First contact arm has contact site and interference part;

Second contact arm also is provided with contact site and interference part on it;

One grounding leg is made of a contact arm extension in described first and second contact arm;

One is communicated with pin, and extended by the contact arm that does not extend grounding leg in described first and second contact arm to constitute, and described first and second contact arm can be communicated with,

Wherein, described first and second contact arm includes a upright base portion, form to have convex arc and to keep the contact site of suitable spacing, described convex arc tail end extended spot also to be provided with one at the one end and can support and terminate in the connector wall and have the backing arm of strengthening the convex arc contact force with described base portion.

2. earth element of high density connector according to claim 1 is characterized in that, forms the interference part with protruding thorn on described base portion.

3. earth element of high density connector as claimed in claim 1 or 2 is characterized in that, described grounding leg is extended downwards by the base portion at the protruding thorn place of described first contact arm and constitutes to the side bending.

4. as earth element of high density connector as described in the claim 3, it is characterized in that described connection pin is by with respect to base portion one side of the described second contact arm convex arc lateral buckling along described convex arc, and can be connected with described first contact arm.

5. as earth element of high density connector as described in the claim 4, it is characterized in that the convex arc of described first and second contact arm also is the off normal setting with the base portion of described contact arm.

6. as earth element of high density connector as described in the claim 5, it is characterized in that described connection pin contacts with described first contact arm, and solid welding is an one.

7. high-density connector is characterized in that it comprises:

One insulation shell has plug surface, solder side and central slot, is provided with several signal terminals that run through and earth terminal accepting hole on described plug surface and described solder side;

Described several signal terminals are arranged at described signal terminal accepting hole, and described signal terminal has contact site, interference part and pin portion;

Earth terminal, be located at described earth terminal accepting hole, described earth terminal comprises having first of contact site and interference part, two contact arms, an and grounding leg, described grounding leg is by described first, a contact arm in two contact arms extends formation, and one have described first, the connection pin that two contact arms are communicated with, described connection pin is by described first, the contact arm that does not extend grounding leg in two contact arms extends and forms, wherein, described first, two contact arms include a upright base portion, form to have convex arc and to keep the contact site of suitable spacing, described convex arc tail end extended spot also to be provided with one at the one end and can support and terminate in the connector wall and have the backing arm of strengthening the convex arc contact force with described base portion.

8. as high-density connector as described in the claim 7, it is characterized in that, on described base portion, form interference part with protruding thorn.

9. as high-density connector as described in claim 7 or 8, it is characterized in that described grounding leg is extended by the base portion at the protruding thorn of described first contact arm place and constitutes to the side bending downwards.

10. as high-density connector as described in the claim 9, it is characterized in that described connection pin is by the lateral buckling with respect to the described convex arc of base portion one side direction of the described second contact arm convex arc, and be connected with described first contact arm.

11., it is characterized in that the convex arc of described first and second contact arm also is the off normal setting with described base portion as high-density connector as described in the claim 10.

12., it is characterized in that described connection pin and the assembling of described first contact arm and solid welding are one as high-density connector as described in the claim 11.