CN201303087Y

CN201303087Y - Electric connector

Info

Publication number: CN201303087Y
Application number: CNU2008201855473U
Authority: CN
Inventors: 李科
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2008-09-09
Filing date: 2008-09-09
Publication date: 2009-09-02
Anticipated expiration: 2018-09-09

Abstract

The utility model discloses an electric connector which is connected on an etched circuit card. The electric connector comprises an insulating body and a plurality of terminals, wherein the terminals are fixed on the insulating body; each terminal comprises a welding part which extends out of the insulating body; the welding parts are in a surface welding type; and the welding parts are provided with grooves and welding walls arranged under the grooves, so the welding intensity of the terminals can be improved.

Description

Electric connector

[technical field]

The utility model relates to a kind of electric connector, relates in particular to a kind of electric connector that is connected on the circuit board.

[background technology]

Seeing also Chinese utility model patent announces No. 2757356, it has disclosed a kind of existing electric connector, this electric connector includes insulating body and is immobilizated in several terminals on the insulating body, described insulating body has the butt joint space, terminal has the holding parts that is immobilizated in the sidewall, the elastic arm that extends to butt joint space one side from holding parts reaches from holding parts to the weld part that extends insulating body away from a side in butt joint space, this terminal is to be made through the method for punching press by the full wafer metallic plate, so the weld part of terminal have the two sides that form by metallic plate plate face and with this lateral vertical on, lower surface, in the existing technology this kind terminal is carried out electroplating technology and add man-hour, generally only gold-plated processing is carried out in two sides, more than the institute, lower surface is to rely on infiltration gold-plated, when gold-plated amount is unstable, easily produce the problem of gold-plated area deficiency, but mainly rely on the lower surface welding of the weld part of terminal during welding, thereby may cause welding incomplete, influence electrical transmission performance.

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

[utility model content]

Technical problem to be solved in the utility model is to provide a kind of electric connector that improves weld strength.

In order to address the above problem, the utility model electric connector adopts following technical scheme: a kind of electric connector that is connected on the printed circuit board (PCB), this electric connector comprises: insulating body and be immobilizated in several terminals on the insulating body, described terminal includes and extends the outer weld part of insulating body, and this weld part is the surface soldered type; Described weld part is provided with fluting and is positioned at the welding wall of fluting downside.

Compared with prior art, the utility model electric connector has following beneficial effect: by on the weld part of terminal fluting being set, and this fluting downside is formed with the welding wall, can improve the terminal weld strength.

[description of drawings]

Fig. 1 is the three-dimensional combination figure of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view of the utility model electric connector.

Fig. 3 is the cutaway view of the utility model electric connector shown in Figure 1 along the A-A line, and has showed that electric connector is welded in the situation on the printed circuit board (PCB).

Fig. 4 is the partial enlarged drawing of the utility model electric connector shown in Figure 3.

[embodiment]

Below in conjunction with accompanying drawing the utility model electric connector is described further.

See also shown in Figure 1ly, the utility model electric connector 100 includes insulating body 1, is immobilizated in several terminals 2 and retaining piece 3 on the insulating body 1.

See also shown in Figure 2ly, described insulating body 1 is provided with longitudinally side wall 11, connects the end wall 12 and the diapire 13 of two side, and this sidewall, end wall are arranged with diapire and dock space 102, convex with hyoplastron 14 from diapire in this butt joint space; Described insulating body 1 has several accepting grooves of accommodating terminal 110, and above-mentioned several terminals 2 is contained in this accepting groove 110.

See also Fig. 2 and shown in Figure 3, described terminal 2 is stamped to form by the metallic plate that has (not shown), this terminal 2 be tabular and be provided with the holding parts 21 that is immobilizated on the sidewall 11, the elastic arm 22 that extends to butt joint space one side from holding parts and from holding parts to the weld part 23 that extends away from butt joint space one side outside the insulating body, this weld part is the surface soldered type, described elastic arm 22 has the contact site 221 that protrudes out to the butt joint space from accepting groove 110, to connect with butt connector (not shown); Described retaining piece 3 is to be arranged on the end wall 12 of insulating body 1, and this end wall 12 has the mounting groove 121 of accommodating retaining piece.

See also Fig. 3 and shown in Figure 4, electric connector 100 is electrically connected on the printed circuit board (PCB) 200, has scolder 5 between described weld part 23 and this printed circuit board (PCB) to realize the welding of terminal; The metallic plate of above-mentioned formation terminal has two plate faces, terminal have the two sides 231 (seeing also shown in Figure 2) that constitute by this plate face respectively and with the upper surface 232 and the lower surface 233 of this lateral vertical, on being somebody's turn to do, be provided with fluting 234 between the lower surface, this is recessed at and runs through above-mentioned two sides 231 on the longitudinally, and on this fluting 234, downside forms the first welding wall 235 and the second welding wall 236 respectively, this second welding wall is between fluting 234 and printed circuit board (PCB) 200, thereby should the fluting with printed circuit board (PCB) between directly be not communicated with, gas in helping slotting in the scolder is discharged, and improves weld strength; The weld part of described terminal is through after the gold-plated processing, because the setting of fluting 234, the inner surface of two sides 231 and fluting all can have Gold plated Layer, can increase the bonding area of weld part, described scolder 5 coats the second welding wall 236 at least, and in the present embodiment, this scolder can extend on the first welding wall 235, thereby can improve the weld strength of terminal, prevent to weld deficiency and influence electrical transmission performance between electric connector and the printed circuit board (PCB).

Above-mentioned execution mode is the better embodiment of the utility model electric connector.Certainly, the utility model electric connector also can adopt other execution mode:

Such as, described fluting 234 also penetrating terminal 2 side 231 only, or the like.

Claims

1. electric connector that is connected on the printed circuit board (PCB), this electric connector comprises: insulating body and be immobilizated in several terminals on the insulating body, described terminal includes and extends the outer weld part of insulating body, and this weld part is the surface soldered type;

It is characterized in that: described weld part is provided with fluting and is positioned at the welding wall of fluting downside.

2. electric connector as claimed in claim 1 is characterized in that: have scolder between the weld part of described terminal and the printed circuit board (PCB), above-mentioned welding wall is between fluting and printed circuit board (PCB), and scolder clad welded wall.

3. electric connector as claimed in claim 1 is characterized in that: described terminal is stamped to form by the metallic plate that has, and this metallic plate has two plate faces, and described terminal has the two sides that are made of this two plates face, and above-mentioned fluting runs through a side at least.

4. electric connector as claimed in claim 2 is characterized in that: the upside of the fluting of described weld part has another welding wall relative with above-mentioned welding wall, and above-mentioned scolder extends in this another and welds on the wall.

5. electric connector as claimed in claim 3 is characterized in that: described insulating body has the longitudinally side wall that forms the butt joint space, and the fluting of described weld part is the two sides along the longitudinally penetrating terminal.

6. electric connector as claimed in claim 1 is characterized in that: described electric connector also has the retaining piece that is installed on the insulating body, and insulating body has the mounting groove of accommodating this retaining piece.

7. electric connector as claimed in claim 1 or 2, it is characterized in that: described insulating body has the butt joint space, and this insulating body includes two longitudinally side walls that form the butt joint space, the end wall that connects the two side, convexedly stretches in hyoplastron between the two side perpendicular to the diapire of sidewall and end wall and from this diapire.