CN2785192Y - Electric connector - Google Patents

Abstract

The utility model discloses an electric connector used for electrically connecting with a butting connector, which comprises an insulation body, a plurality of first terminals, second terminals and an earth terminal, wherein each of the first terminals and the second terminals is provided with a holding part held on the insulation body and a contact part electrically contacting the butting connector; each of the first terminals and the earth terminal is provided with a welding part which can be electrically connected with a circuit board; the earth terminal and the first terminals are punched and formed together and are arranged in one row; the earth terminal and the welding parts of the first terminals are positioned on the same plane; the earth terminal is electrically connected with at least one second terminal. Because the second terminal does not have a welding part and is connected with the earth terminal so as to electrically connect to the circuit board, thereby, the welding part of the electric connector has good coplanar effect and is good for welding.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector with grounding function.

[background technology]

Electric connector is widely used in the electronic installations such as notebook computer, mobile phone, facsimile machine, and described electric connector is with the butt connector grafting and is electrically connected on the main circuit board, provides between two electronic installations to electrically connect.Usually, electric connector comprise insulating body, by certain spaced and parallel be immobilizated in earth terminal and signal terminal in the insulating body, and be immobilizated in the shielding casing on the insulating body; The effect that described earth terminal links to each other with shielding casing and ground connection is provided and covers.

See also in No. the 6th, 811,439, the United States Patent (USP) of on November 2nd, 2004 bulletin, it has put down in writing a kind of electric connector that is connected on the circuit board.This electric connector comprises insulating body, several signal terminals, metal ground plate, and is immobilizated in the shielding casing on the insulating body.Roof and diapire that above-mentioned insulating body has the base portion of lengthwise, extends forward from base portion form a receiving space between this roof and diapire.Several signal terminals are immobilizated on the described base portion, this signal terminal one end is provided with the contact site that extends forwardly to receiving space, the other end is provided with the weld part that extends back, described metal ground plate is to be immobilizated in the insulating body in order to the transmission ground signalling, is provided with the weld part that extends back and be positioned at signal terminal weld part both sides in this metal ground plate trailing edge.

Because above-mentioned electric connector is to adopt surface adhering solder technology (SMT) to be welded on the circuit board, therefore the weld part of the weld part of the described signal terminal of needs and metal ground plate is in the same plane, i.e. all weld part coplanes could guarantee the preferable welding effect of weld part and circuit board.Therefore only, the weld part of above-mentioned signal terminal is to form and be assembled in respectively on the insulating body by different sheet metal punching presses with the weld part of metal ground plate, and above-mentioned two kinds of weld parts are difficult to guarantee in the same plane, and this kind electric connector is made complicated.

Therefore, necessary existing electric connector is improved, to overcome defective of the prior art.

[utility model content]

The purpose of this utility model is to provide a kind of make simple and the good electric connector of weld part coplane degree.

For achieving the above object, the utility model electric connector adopts following technical scheme: a kind of electric connector, and it comprises: insulating body; Several the first terminals, it in a row is immobilizated on the insulating body, the contact site that described the first terminal has the holding parts that is immobilizated on the insulating body, can be electrically connected at the weld part on the circuit board and can electrically contact with butt connector; Several second terminals, it in a row is immobilizated on the insulating body and is the two rows setting with the first terminal, the contact site that this second terminal is provided with the holding parts that is immobilizated on the base portion and can electrically contacts with butt connector; Earth terminal, it is immobilizated on the insulating body, and this earth terminal has the holding parts that is immobilizated on the insulating body and can be electrically connected at weld part on the circuit board; Wherein said earth terminal is to be arranged in a row with several the first terminals, and the welding position of the weld part of this earth terminal and the first terminal in same plane in order to welding, and described earth terminal and at least one second terminal electrically connect.

Compared with prior art, the utility model electric connector has following beneficial effect: by earth terminal is to be arranged in a row and to be immobilizated on the insulating body with several the first terminals, and second terminal does not have weld part, be electrically connected at circuit board but link to each other with earth terminal by it, thereby make the weld part coplane effect of electric connector good, help welding.

[description of drawings]

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

Fig. 2 is the three-dimensional combination figure of the utility model electric connector.

Fig. 3 is the three-dimensional exploded view of another angle of the utility model electric connector.

Fig. 4 is the three-dimensional combination figure of another angle of the utility model electric connector.

Fig. 5 is the cutaway view along A-A line among Fig. 2 of the utility model electric connector.

Fig. 6 is the cutaway view along B-B line among Fig. 2 of the utility model electric connector.

[embodiment]

See also shown in Figure 1ly, the utility model electric connector 100 comprises insulating body 10, shielding casing 20, the first terminal 30, second terminal 40 and earth terminal 31.Insulating body 10 is made of plastics, and the first terminal 30, second terminal 40, earth terminal 31 and shielding casing 20 are to be formed by the sheet metal punching press.Wherein said the first terminal 30 is signal terminals, and second terminal 40 is earth terminals.

See also Fig. 1 and shown in Figure 3, described insulating body 10 is longitudinal structure, the roof that is oppositely arranged 110, diapire 111 that it has base portion 112, extends forward from base portion 112.111 of described roof 110 and diapires form a receiving space 170.Be provided with the accepting groove 113,114 that communicates with receiving space 170 along fore-and-aft direction in roof 110 and diapire 111.Roof 110 upper surfaces and diapire 111 lower surfaces are provided with several holding hole 115,116, holding hole 116 rear ends of this diapire 111 and accepting groove 114 rearward end mutual conduction.Be provided with boss 120 with the through hole 121 that connects the front and rear end in base portion 112 two ends.

Please consult Fig. 1 and shown in Figure 3 again, described the first terminal 30 and earth terminal 31 are to form the most terminals that are arranged in a row by same sheet metal punch forming, and this first terminal 30 is provided with the holding parts 310 that is immobilizated on the base portion 112, extends the weld part 320 that can be electrically connected on the circuit board and extend in the accepting groove 113 forward and protrude into contact site 330 in the receiving space 170 along roof 110 from holding parts 310 from holding parts 310.Earth terminal 31 is positioned at 30 liang of outsides of several the first terminals in the present embodiment, because earth terminal 31 only is the ground connection leg as shielding casing, so this earth terminal 31 is not provided with the contact site that electrically contacts with butt connector, for shielding casing is connected with circuit board, this earth terminal 31 is provided with the weld part 320 that can be electrically connected on the circuit board.Certainly, this earth terminal 31 also can be between two the first terminals 30 in other embodiment.Be provided with holding slot 119 in base portion 112 in order to fixing earth terminal 31.Described insulating body 10 roofs 110 are provided with the groove 118 of corresponding above-mentioned holding slot 119, and these holding slot 119 leading sections and groove 118 rearward end mutual conduction, and described groove 118 is to connect receiving space 170 and roof 110 upper surfaces.

Aforementioned second terminal 40 is by the sheet metal punch forming, this second terminal 40 is contained in the conduit 114 of insulating body 10 diapires 111, and it is provided with the holding parts 410 that is immobilizated on the base portion 112, from holding parts 410 bendings and project into kink 420 holding hole 116 in and reach from holding parts 410 and extend forward and protrude into the contact site 430 of accommodating to 170.

See also Fig. 1, Fig. 2, Fig. 5 and shown in Figure 6, described shielding casing 20 have roof 110 upper surfaces that cover insulating body 10 top board 21, cover the base plate 22 of diapire 111 lower surfaces and bend the holding parts 200 of extension in shielding casing 20 front end face two ends backward.Be provided with several in the top board 21 of shielding casing 20 and base plate 22 rear ends and be contained in fixing pin 211,221 in the aforementioned holding hole 115,116.Also be provided with the elastic portion 212 that is contained in the groove 118 in top board 21 rear ends.Described the first terminal 30 is contained on the insulating body 10 and arranges in the accepting groove 113, and second terminal 40 is contained in 10 times rows of insulating body accepting groove 114; Aforementioned shielding casing 20 is immobilizated in the holding hole 115,116 of described insulating body 10 by fixing pin 211,221, simultaneously holding parts 200 is immobilizated in the through hole 121 of insulating body 10 and shielding casing 20 firmly is immobilizated on the insulating body 20, and wherein the elastic portion 212 of top board 21 is passed groove 118 and is connected on the earth terminal 31.The fixing pin 221 of described shielding casing 20 base plates 22 is contained in the holding hole 116 of insulating body 10, and the fixing pin 221 of this shielding casing 20 is connected on the kink 420 of second terminal 40.When butt connector inserts the utility model electric connector 100, the ground strip of described butt connector abuts on the contact site 430 of second terminal 40, form ground connection and masking system by shielding casing 20, second terminal 40 that is connected in shielding casing 20 and earth terminal 31, ground signalling can be transferred on the circuit board by earth terminal 31.Because second terminal 40 electrically connects by shielding casing 20 and earth terminal 31, so it can not be provided with weld part.

The signal terminal of electric connector is provided with the weld part that can be connected on the circuit board in the prior art, shielding casing is in order to play grounding function, it also is provided with the weld part that is connected on the circuit board, and the weld part of described signal terminal and shielding casing is to be formed by the punching press of different metal sheet difference, and be assembled on the insulating body respectively, so be difficult to the effect of the solder side coplane of these weld parts of assurance in the prior art.And be by same sheet metal punch forming at several the first terminals 30 and earth terminal 31 described in the utility model electric connector, it is the weld part 320 that the first terminal 30 and earth terminal 31 have drawing together, and be assembled in the insulating body together, shielding casing and earth terminal electrically connect simultaneously, thereby not only can make shielding casing 20 by earth terminal 31 ground connection, can better guarantee that the first terminal 30 is in the same plane with the solder side of the weld part 320 of earth terminal 31 simultaneously again.Therefore the utility model electric connector not only makes the coplane degree effect of weld part good, and also very simple on making.

Certainly the earth terminal 31 of electric connector also can interconnect with at least one second terminal 40 in other embodiments; Described second terminal 40 also can be interconnected to a row; Described second terminal 40 interconnects with earth terminal 31, and described shielding casing 20 is connected with second terminal 40; Described second terminal 40 and shielding casing 20 all link to each other with earth terminal 31.

Claims (10)

1. electric connector, it comprises:

Insulating body;

Several the first terminals, it in a row is immobilizated on the insulating body, the contact site that described the first terminal has the holding parts that is immobilizated on the insulating body, can be electrically connected at the weld part on the circuit board and can electrically contact with butt connector;

Several second terminals, it in a row is immobilizated on the insulating body and is the two rows setting with the first terminal, the contact site that this second terminal is provided with the holding parts that is immobilizated on the base portion and can electrically contacts with butt connector;

Earth terminal, it is immobilizated on the insulating body, and this earth terminal has the holding parts that is immobilizated on the insulating body and can be electrically connected at weld part on the circuit board;

It is characterized in that: described earth terminal is to be arranged in a row with several the first terminals, and the welding position of the weld part of this earth terminal and the first terminal in same plane in order to welding, and described earth terminal and at least one second terminal electrically connect.

2. electric connector as claimed in claim 1 is characterized in that: this second terminal does not have the weld part that can be electrically connected on the circuit board.

3. electric connector as claimed in claim 1 is characterized in that: described earth terminal is located at the outside of the first terminal.

4. electric connector as claimed in claim 1 is characterized in that: not linking to each other mutually between described second terminal is provided with at interval.

5. electric connector as claimed in claim 1 is characterized in that: be electrically connected to each other between described second terminal.

6. electric connector as claimed in claim 5 is characterized in that: described electric connector also comprises the shielding casing that covers insulating body, and this shielding casing and at least one second terminal electrically connect.

7. electric connector as claimed in claim 1 is characterized in that: described earth terminal is by same sheet metal punch forming with the first terminal and in a row is immobilizated on the insulating body.

8. electric connector as claimed in claim 1 is characterized in that: described electric connector also comprises the shielding casing that covers insulating body, and this shielding casing and above-mentioned earth terminal electrically connect.

9. electric connector as claimed in claim 8, it is characterized in that: described shielding casing is extended with the elastic portion that electrically contacts with above-mentioned earth terminal, described insulating body is to should elastic portion being provided with groove, described insulating body is provided with the holding slot of accommodating the earth terminal holding parts, this holding slot communicates with above-mentioned groove, and the elastic portion of described shielding casing extends in the groove and electrically contacts with described earth terminal.

10. electric connector as claimed in claim 1 is characterized in that: described earth terminal does not have the contact site that can electrically contact with butt connector.

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