CN2648634Y

CN2648634Y - Electric connector

Info

Publication number: CN2648634Y
Application number: CN 03226641
Authority: CN
Inventors: 邓莉敏
Original assignee: Individual
Current assignee: No 81 Haoting Road(west) Qifu Housing Estate F
Priority date: 2003-06-02
Filing date: 2003-06-02
Publication date: 2004-10-13
Anticipated expiration: 2013-06-02

Abstract

An electrical connector contains a terminal and an insulating body that is provided with a terminal accommodating hole. The terminal is provided with an elastic arm. Certain space is kept between the terminal accommodating hole and the elastic arm, thus making the terminal generate a certain deformation but being uneasy to generate plastic deformation so as to guarantee the perfect performance of the electrical connector.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector, and especially a kind of and external assembly is the electric connector that adopts compression to contact.

Background technology

Electric connector by terminal contact portion and external assembly Elastic Contact to realize its linkage function, so the flexible quality of electric connector terminal can have influence on the quality of whole electric connector performance.Shown in Figure 2 as Fig. 1, common electric connector terminal 1 roughly is " C " font at present, and its two ends are respectively equipped with welding ends 2 and contact jaw 3.During assembling, this terminal 1 is inserted in the rectangle terminal accommodation hole 5 in the insulating body 4, and this terminal welding ends 2 is fixed together with tin ball 6.After this electric connector assembling is finished, by heating furnace, both are welded mutually with circuit board 7.During use, external assembly 8 (as circuit board, chip etc.) is pressed on the electric connector terminal 1 from top to bottom, and the conducting end 9 of external assembly is contacted with termination contact end 3, thereby reaches electrically conducting between external assembly 8 and the circuit board 7.Therefore, during use, this termination contact end 3 can be subjected to a downward pressure, makes terminal produce strain.But this terminal is because deformation space is excessive, and repeatedly pressurized can't restore because of plastic deformation after particularly being impacted possibly, thereby can't effectively contact with external assembly 8, causes electric connector normally to work.

Summary of the invention

The purpose of this utility model is to provide a kind of electric connector, to guarantee the superperformance of electric connector.

For achieving the above object, the utility model electric connector comprises terminal and insulating body, offer the terminal accommodation hole on the insulating body, this terminal is provided with elastic arm, keep suitable space between this terminal accommodation hole and the elastic arm, make terminal can produce a certain amount of distortion, but be difficult for making it to produce plastic deformation, thereby guaranteed the superperformance of electric connector.

Description of drawings

Below in conjunction with drawings and Examples the utility model is made further detailed description.

Fig. 1 is existing electric connector cutaway view.

Fig. 2 is the stereogram of existing electric connector terminal.

Fig. 3 is the utility model electric connector terminal blank sheet figure.

Fig. 4 is the terminal stereogram of first kind of execution mode of the utility model electric connector.

Fig. 5 is the forward cutaway view of first kind of execution mode of the utility model electric connector.

Fig. 6 is the side sectional view of electric connector shown in Figure 5.

Side sectional view when Fig. 7 is electric connector shown in Figure 5 and circuit board and the compression of external assembly.

Fig. 8 is second kind of execution mode terminal of the utility model electric connector stereogram.

Fig. 9 is the side sectional view of second kind of execution mode of the utility model electric connector.

Figure 10 is the forward end view of the third execution mode of the utility model electric connector.

Embodiment

Extremely shown in Figure 7 as Fig. 3, the utility model electric connector comprises terminal 10 and insulating body 20, offer terminal accommodation hole 30 on the insulating body 20 in order to hold terminal 10, this electric connector terminal 10 comprises fixed part 12 and the

elastic arm

14 and 16 that is extended upward by fixed part 12, be formed with a groove that Open Side Down 120 in the middle of the fixed part 12, to overlap scolder (as the tin ball, do not draw among the figure),

elastic arm

14 and 16 upper ends are respectively contact

jaw

140 and 160, terminal 10 is the blank sheets that earlier a sheet metal stamping-out become as shown in Figure 2, its

elastic arm

14 and 16 is laterally all having certain bending, both roughly are " () " shape, promptly all outwards open,, thereby obtain as shown in Figure 4 terminal shape then in the further radially bending in the same direction of two

elastic arms

14 and 16 central portions.Terminal accommodation hole 30 comprises that a fixed area 32 and holds district 34, fixed area 12 is used for fixing terminal fixed part 12, hold district 34 respectively and maintain suitable space length between terminal

elastic arm

14 and 16,

termination contact end

140 and 160 protrudes the terminal accommodation hole 30 of insulating body 20, to contact with external assembly, the groove 120 that is positioned at fixed part 12 centres simultaneously makes electric connector and circuit board 40 welding fixing in order to the overlap joint scolder.During use, shown in Fig. 6,7, earlier that electric connector and circuit board 40 welding is fixing, then be pressed in external assembly 60 on the electric connector from top to bottom, the conducting end (not drawing among the figure) of external assembly is contacted with 160 with termination contact end 140, at this moment, terminal 10 can be subjected to a downward pressure, thereby can produce strain, because this terminal

elastic arm

14 and 16 radially with hold district 34 and keep suitable distance, make the terminal 10 can overflexing, thereby the life-span that can improve terminal 10 be guaranteed the superperformance of electric connector; And because terminal 10 all bend horizontally and radially and all distinguish the suitable distance of 34 maintenances with holding, so when two elastic arms 14 of

terminal

10 and 16 after radially distortion reaches capacity, be

elastic arm

14 and 16 and after accommodation hole 30 madial walls offset, can also continue laterally producing strain, thereby can improve the elasticity of terminal 10 and make terminal 10 be difficult for producing plastic deformation, guarantee the superperformance of electric connector.

Certainly, the utility model electric connector terminal also is embodied as many different shapes, elastic arm 14 ' as this terminal blank sheet, 16 ' central portion can radially bend in the opposite direction (as Fig. 8, shown in Figure 9), or two elastic arms 14 of this terminal blank sheet "; 16 " laterally crooked in the same direction, promptly roughly be " ((" shape (as shown in figure 10), radially bending more then, or the like, there is suitable distance in holding of the terminal elastic arm of these shapes and terminal accommodation hole between the district, thereby equally also can improve terminal elasticity and make terminal be difficult for plastic deformation, guarantee the superperformance of electric connector.

For preventing that dust and foreign material from falling in the terminal accommodation hole, also can above the terminal accommodation hole, contact site below set up a cover plate.Simultaneously, this terminal fixed part can further protrude the lower surface of terminal accommodation hole, forms another contact site, to contact with the compression of external assembly both sides.

Claims

1. electric connector, comprise terminal and insulating body, offer the terminal accommodation hole on the insulating body, this terminal is provided with elastic arm, it is characterized in that: keep suitable space between this terminal accommodation hole and the elastic arm, when terminal generation strain to certain phase, when as yet plastic deformation not taking place, elastic arm is resisted against on the inwall of terminal accommodation hole.

2. electric connector as claimed in claim 1 is characterized in that: this terminal elastic arm laterally and is radially all having suitable bending.

3. as electric connector as described in the claim 2, it is characterized in that: this terminal elastic arm is crooked or crooked round about to same direction in the horizontal.

4. as electric connector as described in the claim 2, it is characterized in that: this terminal elastic arm is crooked or crooked round about to same direction diametrically.

5. as electric connector as described in the claim 2, it is characterized in that: this terminal elastic arm and terminal accommodation hole all keep suitable space horizontally and radially, make terminal can produce a certain amount of distortion.

6. as electric connector as described in arbitrary in the claim 1 to 5, it is characterized in that: the two ends of this terminal elastic arm are extended respectively and are provided with fixed part and contact jaw.

7. electric connector as claimed in claim 6 is characterized in that: this terminal fixed part protrudes from terminal accommodation hole lower surface, can contact with the compression of external assembly both sides.

8. electric connector as claimed in claim 6 is characterized in that: this terminal fixed part can overlap scolder, to be welded on the circuit board.

9. as electric connector as described in arbitrary in the claim 1 to 5, it is characterized in that: above the terminal accommodation hole, termination contact portion below be provided with a cover plate.