CN2530357Y

CN2530357Y - Terminal device having elastic connector

Info

Publication number: CN2530357Y
Application number: CN02204707U
Authority: CN
Inventors: 蔡周旋
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-22
Filing date: 2002-01-22
Publication date: 2003-01-08
Anticipated expiration: 2012-01-22

Abstract

The utility model provides a terminal device with an elastic pin, which is arranged on an electric connector or an encapsulated chip, and is electronically connected with a circuit board through a pin. The utility model comprises a contact part, a positioning part and a pin part; wherein, the pine part extends upwards from the two sides of the positioning part. The terminal device with an elastic pin is characterized in that the pin part extends downwards from the upper end of the positioning part to exceed the lower end of the positioning part. By the structure, the utility model has fairly long elastic force arm and effect of remarkably sensitive elasticity; moreover, by contacting the circuit board through elastic fore, the utility model has elastic extensible contact so as to ensure perfect electric connection.

Description

Arrangements of terminal with elastic pins

[technical field]

The utility model relates to a kind of terminal construction, particularly a kind of arrangements of terminal with elastic pins.

[background technology]

Electronic product is accurate day by day, the pin count of electric connector constantly increases, and the circuit of circuit board is also very complicated, has most layer lines road, because circuit board has the plural layer circuit, for the internal wiring that does not influence circuit board is arranged, at present electric connector is connected with circuit board and mostly adopts surperficial connected mode, give up the perforation formula and connect, so can reduce perforation on the circuit board, make that internal layer circuit is unlikely influenced by perforation.

Planarization is preferably arranged when being connected with circuit board for the pin that makes electric connector, make the tin ball into, see also Fig. 1 so will stretch out the outer pin of plastic seat body, it is electric connector for the spherical formula pin of tin, it includes a pedestal 10, and it is provided with most slots 11, and the slot bottom surface is provided with perforation 14; Most terminals 12 is to be fixedly arranged in this slot 11, and perforation 14 is stretched out in its lower end; The tin ball 13 of plural number is to be located at outside the pedestal 10, is connected with terminal 12 by perforation 14.

So when being connected with circuit board 15, this each tin ball 13 can partly melt and can all have good connection.On wafer, its pin also is designed to the tin ball equally, and using with circuit board has being connected than Cui.

Though the electric connector of the spherical formula pin of tin or wafer and circuit board be electrically connected utmost point Cui, yet on making, need implantation tin ball in addition, make cost increase relatively.

Right if do not adopt the spherical formula pin of tin, then under the situation of the many pins of numbers of poles, to keep the planarization of all pins quite difficult, moreover the spherical formula pin of tin also has its shortcoming, then probably links to each other with adjacent contact when scolding tin when even the tin ball is too big, if then also fear failure welding too for a short time.

[utility model content]

The purpose of this utility model is to provide a kind of arrangements of terminal with elastic pins, it is to be assembled on the chip that electric connector or encapsulation finish, in the time of on being placed in circuit board, but its pin portion elastic shrinkage and all be contacted with circuit board, its pin portion has the very long elasticity arm of force, elasticity is very sensitive, thereby can guarantee to have than being connected of Cui with circuit board, and production cost is lower.

For reaching above-mentioned purpose, the utility model provides a kind of arrangements of terminal with elastic pins, it is to be electrically connected with circuit board by pin, it comprises contact site, location division, reaches pin portion, this contact site is to extend upward from the both sides of this location division, it is characterized in that: this pin portion down extends beyond this lower end, location division by this location division upper end bending.Can make pin portion have the very long elasticity arm of force by this, reach the very sensitive effect of elasticity, utilize elastic force contact circuit plate, have the contact range of elastic telescopic, so can guarantee good electrical connection.

The purpose of this utility model can also reach as follows:

Described arrangements of terminal with elastic pins is characterized in that: the material thickness of this pin portion is thin than contact site, location division.

But this pin portion upper end and junction, upper end, location division embayment arcuation.

This location division is to have three faces to be the  shape.

The median surface of this location division is the outstanding clamp holder of establishing.

This pin portion is provided with the contact point of downward protrusion.

This lower end, location division can connect a limiting plate, and this limiting plate lies along the both sides of this pin portion, uses to limit that this pin portion is unlikely tilts to both sides twistings.

This limiting plate can be the  shape, and three limits of this limiting plate are limited the both sides and the inboard of this pin portion respectively.

This contact site is provided with a pair of elastic arm, and this upper end to elastic arm is approaching and have a contactinterval, and is provided with the importing tablet of inclination.

Can conclude following advantage by above explanation the utility model:

1. the utlity model has the elasticity sensitivity, stretch clear and definite but the slight pin portion of elastic force, electric connector in the use, all can the Elastic Contact circuit board as long as have the strength of being a bit larger tham all pin summation elastic force can make each pin elasticity contract to receive, so can guarantee to be electrically connected effect.Can add the counterweight mode or the buckle mode application of force is fixed in circuit board as for electric connector, right this non-this case emphasis that terminal construction is discussed is not so give unnecessary details at this.

2. because of pin utilizes elastic force contact circuit plate, has the contact range of elastic telescopic, so though electric connector has a lot of pin also can guarantee that the pin of each terminal all can have good electrical connection.The whole situation if pin portion is uneven still can be proofreaied and correct by the contact range of elastic telescopic, so can not cause the situation of loose contact.

3. down extend beyond this lower end, location division owing to self-align winding song in upper end of pin portion, thus the very long elasticity arm of force can be had, so can have the very sensitive effect of elasticity.

4. manufacturing cost reduces with respect to the pin of tin ball-type formula.

[description of drawings]

Above-mentioned purpose of the present utility model, advantage and characteristic by following than in the detailed description of Cui embodiment and with reference to graphic when can be clearer.

Fig. 1 is the structural representation of the electric connector of the spherical formula pin of known tin.

Fig. 2 is the front view of the utility model than Cui embodiment.

Fig. 3 is the end view of the utility model than Cui embodiment.

Fig. 4 is the vertical view of the utility model than Cui embodiment.

Fig. 5 is the upward view of the utility model than Cui embodiment.

Fig. 6 is the user mode figure of the utility model than Cui embodiment.

Fig. 7 is the user mode figure of the utility model than Cui embodiment.

[embodiment]

See also Fig. 2 to Fig. 5, be for the utility model one than Cui embodiment, it is to be assembled in the chip structure that electric connector or encapsulation are finished, and is electrically connected with circuit board by pin, it is integrally formed with metallic plate, includes: contact site 72, location division 71, pin portion 73, an and limiting plate 74.

This location division 71 is to have trihedral to become the  shape, and its median surface slightly exceeds other two sides and stamps out a clamp holder 711, and the clamp holder lower end forms an inclination protuberance 712, and the upper end forms a card face 713.

This contact site 72 is that self-align 71 both sides extend upward, and is provided with a pair of elastic arm 721, and the upper end of this a pair of elastic arm 721 is approaching to form a contactinterval 723, and is provided with the importing tablet 722 of inclination.

This pin portion 73 down extends beyond this lower end, location division by 714 bendings on the median surface of this location division 71, use the very long elasticity arm of force of formation, and its material thickness is through thinning processing, be about half of other plate face thicknesses, use the lighter and sensitive elasticity of formation, in addition, this pin portion upper end 731 forms the curved arc shape with the median surface upper end 714 of location division when being connected, make pin portion 73 can not cause elastic fatigue by this when springing, the lower end of pin portion forms a protruding downward contact point 732.

This limiting plate 74 is the median surface lower ends that are connected in location division 71, be bent into horizontal and slightly inclined, it is the  shape and has dual-side 741,742 and medial side 743, both sides and inboard that the both sides that its dual side-edge 741,742 is positioned at pin portion 73 are limited this pin portion 73 respectively, 743 of this medial side are pin portion 73 resilient abutment.Though the pin portion like this 73 elasticity arm of forces are very long and elastic force is extremely light and sensitive, so because of being subjected to the spacing unlikely of this dual side-edge 741,742 to twist to both sides.

By above structure, see also Fig. 6, it is the terminal groove 81 that from bottom to top is assembled in the pedestal 80 of electric connector, its location division 71 is by this inclination protuberance 712 and terminal groove 81 packings, locate by the card face 82 that card face 713 is stuck in the terminal groove 81, outside its pin portion 73 external part pilot trench 81, when this pin portion 73 rigidly connects when touching circuit board 15, its contact point 732 is only received the edge of the contact 151 of circuit board 15; See also Fig. 7, press down Hou when electric connector is past, the heat radiation cushion block 83 of pedestal 80 bottom surfaces is butted on circuit board 15, and pin portion 73 is compressed at this moment, its contact point 732 promptly is near the central authorities of contact 151 that elasticity pushes against this circuit board, so can reach certain electrical connection effect.

The specific embodiment that is proposed in the detailed description of preferred embodiment is only in order to be easy to illustrate technology contents of the present utility model, and be not with the utility model narrow sense be limited to this embodiment.

Claims

1. arrangements of terminal with elastic pins, it is to be electrically connected with circuit board by pin, it comprises contact site, location division, reaches pin portion, this contact site is to extend upward from the both sides of this location division, it is characterized in that: this pin portion down extends beyond this lower end, location division by this location division upper end bending.

2. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: the material thickness of this pin portion is thin than contact site, location division.

3. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: this pin portion upper end is the embayment arcuation with junction, upper end, location division.

4. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: this location division is to have three faces to be the  shape.

5. the arrangements of terminal with elastic pins as claimed in claim 4 is characterized in that: the median surface of this location division is the outstanding clamp holder of establishing.

6. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: this pin portion is provided with the contact point of downward protrusion.

7. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: this lower end, location division is connected with a limiting plate, and this limiting plate lies along the both sides of this pin portion, uses to limit that this pin portion is unlikely tilts to both sides twistings.

8. the arrangements of terminal with elastic pins as claimed in claim 7 is characterized in that: this limiting plate is the  shape, and three limits of this limiting plate are limited the both sides and the inboard of this pin portion respectively.

9. the arrangements of terminal with elastic pins as claimed in claim 1 is characterized in that: this contact site is provided with a pair of elastic arm, and this upper end to elastic arm is approaching and have a contactinterval, and is provided with the importing tablet of inclination.