CN2360996Y

CN2360996Y - Fixing device of electric connector

Info

Publication number: CN2360996Y
Application number: CN 98247053
Authority: CN
Inventors: 朱自强; 祝小程; 许淑瑛
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: 1998-11-25
Filing date: 1998-11-25
Publication date: 2000-01-26
Anticipated expiration: 2008-11-25

Abstract

The utility model provides a fixing device of electric connectors, particularly a fixing device which can weld and fix electric connectors on circuit boards. The utility model is characterized in that the fixing device is provided with a pin on the electric connector, the pin is provided with an interference part which is barb-shaped, and the barb generates interference with a position hole of the circuit board. So the electric connector can be fixed on the circuit board, the pin part is not exceeded a reverse of the inserting circuit board, so the pin can not eject off solder paste, and welding stability can be increased.

Description

The fixture of electric connector

The utility model provides a kind of fixture of electric connector, especially refers to a kind of fixture of the tin cream that the electric connector strong fix can be used to weld on the circuit board and not can the roof fall circuit board.

General electric connector is via welding terminal and pin to be fixed on the circuit board.And the solder technology that is adopted normally has wave soldering and surface adhering welding (Surface MountingTechnology; SMT).Because the surface adhering solder technology can make processing procedure speed up, processing output increasing and stay in grade cost are low, so more and more adopted.When surface adhering is welded usually, need elder generation selectively be coated with tin cream, then again electronic component and electric connector are inserted in set welding position,, make electronic component be welded in the welding position via the infrared ray heating at the adhesion surface of circuit board.And the fixedly kenel of the pin of existing electric connector and circuit board and circuit board is welded with materially affect for surface adhering, and the pin of the connector that discloses as No. the 4907987th, United States Patent (USP) all passes the set location hole of circuit board and welds.As shown in Figure 6, the location hole 51 corresponding arcuations that are on the outside 46 of the pin 42 of existing electric connector and the circuit board 5, therefore when pin passes circuit board, the location hole inboard tin cream on every side that can will be coated on circuit board ejects outside the hole, and the protruding reverse side that exposes the circuit board bonding plane of pin meeting, so not only in the welding processing procedure, can cause the tin cream quantity not sufficient because of tin cream has been extruded circuit board, and make electric connector solid welding really, and also must increase manual repair welding, increase the processing procedure cost.Moreover, can't heavily covered under the use by the tin cream of roof fall, also form waste.

The purpose of the fixture of the utility model electric connector be to provide a kind of can be on circuit board with the electric connector strong fix, and save the tin cream consumption, in the time of can improving existing electric connector and insert the location hole of circuit board because of pin with the situation of tin cream roof fall, to reduce, influence electric connector and circuit board strong fix effect because of the not enough failure welding that brings of tin cream.

The principal character of the fixture of the utility model electric connector is, this fixture is to be provided with a pin at electric connector, this pin has an interference part that is reversed acanthoid, can produce with the location hole of circuit board and interfere, so as to electric connector is fixed on the circuit board, and described pin in circuit board be plugged in the reverse side of plug in circuit board, to reach pin not with the effect of tin cream roof fall.

Adopt the utility model, can save the tin cream consumption, with the situation of tin cream roof fall, reduce when improving existing electric connector and inserting the location hole of circuit board, increase firmly certain welding effect of electric connector and circuit board because of the not enough failure welding that brings of tin cream because of pin.

Fig. 1 is the partial schematic diagram of the utility model electric connector fixture

Fig. 2 is the stereogram of the embodiment of the utility model electric connector fixture

Fig. 3 A is the front view of the embodiment of the utility model electric connector fixture

Fig. 3 B is the end view of the embodiment of the utility model electric connector fixture

Fig. 4 is the use figure of the embodiment of the utility model electric connector fixture

Fig. 5 is the schematic diagram of another embodiment of the utility model electric connector fixture

Fig. 6 be existing electric connector fixture schematic diagram wherein: 41 pins, 42 interference parts, connector 10 insulating body 1 interface, 101 terminal 2 abutting ends, 3 mask 4 circuit boards, 5 sides, 43 apical margins, 44 grooves, 45 location holes, 51 sidewalls, 52 reverse side, 53 bonding planes, 54 tin creams 55

With reference to the accompanying drawings, in conjunction with the embodiments, the utility model will be further described:

See also Fig. 1 and Fig. 2, the fixture of the utility model electric connector is inserted the connector of the location hole of circuit board applicable to any with pin, and present embodiment is with general bus-bar electric connector (Universal Serial Bus; USB) be example.This electric connector comprises that insulating body 1, a plurality of terminal 2, terminal are installed with space 3 and mask 4.Wherein insulating body 1 has interface 101, form a hole backward by this interface 101, this hole then is convexly equipped with out terminal and is installed with space 3, be used to accommodate four conducting terminals 2 (Fig. 3 A reference), these conducting terminals 2 are that an end is contained in described being installed with in the space, and the other end is beneficial to the surface adhering welding through bending 90 degree (Fig. 3 B reference).In addition, mask 4 is coated on outside the insulating body 1, to reach the effect of getting rid of electromagnetic interference; Be provided with pin 42 in the side 41 of mask 4 again, be fixture of the present utility model, this pin 42 convexedly stretches in the position of connector 10 lower edges and

circuit board

5, and 42 liang of avris of pin are provided with the interference part 43 of reversed acanthoid, i.e. the part indentations that the madial wall 52 of set location hole 51 is interfered mutually on itself and the circuit board 5.And the high a of the pin 42 that protrudes out is no more than the thickness of the circuit board 5 that will insert, so that pin 42 is unlikely to the protruding reverse side 53 that is exposed to circuit board 5.

Please continue with reference to Fig. 1 and Fig. 4, when electric connector 10 is installed on circuit board 5, must be coated with tin cream 55 earlier on the bonding plane 54 of circuit board 5, tin cream 55 is coated on the suitable position of circuit board 5, comprises the sidewall 52 of the location hole 51 of circuit board 5.Then connector 10 is inserted on the circuit board 5, interfere with the madial wall of location hole 51 52 interference part 43 of its reversed acanthoid.And the apical margin 44 of pin 42 does not expose the reverse side 53 of circuit board 5 just, and then the tin cream 55 of coating in advance in the location hole 51, can not be ejected the outer of circuit board 5 because of the insertion of this pin 42 even drops.When carrying out infrared heating, can produce welding effect preferably like this.

Please continue with reference to Fig. 5, be another embodiment of the present utility model, the apical margin 44 of this pin 42 inwardly offers blanking groove 45, to increase elasticity.So also can reach the purpose of this utility model.

Claims

1. the fixture of an electric connector, be used for the fixing of electric connector and circuit board, this electric connector comprises: the body of an electric connector, what be provided with several ccontaining terminals in the body is installed with a space and a mask, for metal material is made and is covered in external, which is provided with fixture, it is characterized in that: this fixture is to extend a pin in the mask root edge, the length of described pin less than the thickness of plug in circuit board, and, which is provided with the interference part that produces interlocking with the location hole of circuit board.

2. the fixture of electric connector as claimed in claim 1, it is characterized in that: the both sides, interference part of pin have the hangnail of an indentation at least.

3. the fixture of electric connector as claimed in claim 2, it is characterized in that: the apical margin that prolongs pin inwardly offers groove.