CN2458762Y

CN2458762Y - Improved terminal structure

Info

Publication number: CN2458762Y
Application number: CN01200710U
Authority: CN
Inventors: 林建忠
Original assignee: YUANTIAN SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: Liao Xiumei
Priority date: 2001-01-05
Filing date: 2001-01-05
Publication date: 2001-11-07
Anticipated expiration: 2011-01-05

Abstract

The utility model relates to an improved terminal structure. The utility model is characterized in that both sides of an installation part are respectively formed with a positioning tooth; an inserted part is connected with the lower end of the installation part; a contact part is arranged above the installation part; a forked first arm and a forked second arm are formed by extending from the upper end of the installation part, the second arm extends upwards from the near lower end part on one side of the first arm by a connection part to form a boom body, the upper end of the boom body is a free end, the boom body is in a sloping shape slightly toward the front side and the outer side of the terminal, and then the contact part is connected with the upper end of the second arm. The utility model has better electrical property and mechanical connection effect.

Description

The terminal construction of improvement

The utility model relates to a kind of terminal construction of improvement, refer in particular to a kind ofly to be suitable for being installed in the connector, can in order to the electronic building brick of majority group pin chip (PGA) reach preferable electrically and the mechanical terminal construction that is connected the improvement of effect.

As everyone knows, connector is welded on the circuit board usually, so that accommodate suitable electronic building brick in wherein, and be accomplished the electric connection of electronic building brick and circuit board thus, and on a kind of electronic component that is called most group pin chips the time, in inserting the boundary that reaches zero insertion force (ZIF) when extracting, the target that becomes in the application to desire to reach.

Disclosed as many United States Patent (USP)s, be divided into two big classes substantially with the terminal of the chip connector of zero insertion force, the first has a single institute contact arm, the extended pin in chip below can be held on contact arm, and finish electrically being connected between the pin of connector and chip with mechanical, and this type of patent has United States Patent (USP) the 3rd, 315, and 212,4,501,461,4,674,811,4,887,974,4,988,310,5,013,256, and 5,052, No. 101 etc.

Alternative terminal is to have two contact arms, and a pin that the chip below can be extended is held between two contact arms, is connected with mechanical and finish electrical between the pin of connector and chip, and this type of patent has United States Patent (USP) the 3rd, 676,832,3,763,459,4,331,371,4,381,130,4,397,512,4,468,072,4,498,725 and 4,648, No. 669 etc.Use the terminal of two contact arms can have preferable elasticity, and when making the chip pin insert in the connector, can reach due and electrically be connected with mechanical.

As shown in Figure 1, it is a kind of terminal commonly used, this terminal 10a is a Y shape, its waist place is formed with a kink 11a, and this kink 11a lower end is formed with the Plug Division 12a of long narrow shape, and kink 11a upper end then extends to form two forked arms again, one arm upper end is a contact site 13a, this contact site 13a inboard extends to form an oblique guidance part 14a, pitches this terminal 10a and is formed with positioning tooth 15a respectively in both sides, upper end, waist place, so that clip is in connector slot inwall.Its major defect is:

The arm of the contact site 13a of above-mentioned terminal structure is to be extended by upper end, terminal 10a waist place, and this arm lower end is to be connected with upper end, terminal 10a waist place with the position of broad, therefore the arm elasticity that has contact site 13a is lower, adaptation was relatively poor when terminal contacted with the pin of chip, was difficult to the electrical and mechanical effect that is connected that reaches preferable.

Main purpose of the present utility model is to provide a kind of terminal construction of improvement, extend by second arm, one side that will have contact site, but not directly extend by the installation portion upper end, and the connecting portion of the second arm lower end is roughly wide with second arm, make second arm can form a rubber-like cantilever, overcome the drawback of prior art, reach have preferable electrically with mechanical purpose of connecting.

The purpose of this utility model is achieved in that a kind of terminal construction of improvement, it is characterized in that: the both sides of installation portion are formed with positioning tooth respectively; The Plug Division is connected in this installation portion lower end; Contact site is located at this installation portion top, extend to form the forked the first arm and second arm by the installation portion upper end, this second arm is extended with connecting portion up by the nearly lower end of the first arm one side, forming the upper end is free-ended cantilever, and slightly being skewed to the terminal front side and the outside, this contact site then is connected in this second arm upper end.

This installation portion is provided with short convex body.This Plug Division is provided with long convex body, and this long convex body extends along this Plug Division length direction.The straight up extension of this first arm, this first arm top is connected with strip, is provided with transversal between this first arm and the strip.The connecting portion of this second arm lower end is roughly wide with second arm.This contact site is curved lamellar body.Be formed with salient point on this contact site.

Major advantage of the present utility model is to have the preferable electrical and mechanical effect that is connected.

Further specify below in conjunction with preferred embodiment and accompanying drawing.

Fig. 1 is the schematic perspective view that terminal commonly used is connected in strip;

Fig. 2 is that the master that the utility model terminal is connected in strip looks schematic diagram;

Fig. 3 is that the master of the utility model terminal looks schematic diagram;

Fig. 4 is the schematic side view of the utility model terminal;

Fig. 5 is the schematic top plan view of the utility model terminal;

Fig. 6 is the schematic perspective view of the utility model terminal;

Fig. 7 is the schematic diagram that the utility model terminal is installed on connector.

Consult Fig. 2-Fig. 6, the utility model provides a kind of terminal construction of improvement, and terminal 2 is made for the pattern of strip, as Fig. 2, cuts after terminal 2 punch formings, to separate with the strip 1 that links again.

Terminal 2 is to make with conductive material, and it is to include an installation portion 20, a Plug Division 21 and a contact site 22.This installation portion 20 is tabular, and its both sides are formed with positioning tooth 23 respectively, so that clip is in the connector inwall, punching press is formed with a short convex body 24 on this installation portion 20, can be in order to increasing installation portion 20 intensity, and can prevent that terminal 2 from producing and wave, locating effect is good, and its resistance is very strong.Plug Division 21 is one-body molded installation portion 20 lower ends that are connected in, and it is the straight shape that is long narrow shape, and punching press forms a long convex body 25 on this Plug Division 21, and this long convex body 25 is that 21 length directions extend suitable length along the Plug Division, can be in order to increase Plug Division 21 intensity.

Contact site 22 is one-body molded installation portion 20 tops that are connected in, it is to extend to form the forked the first arm 26 and second arm 27 in installation portion 20 upper ends, its the first arm 26 is to be straight extension up, and be connected with strip 1 with these the first arm 26 tops, one transversal 29 is arranged between this first arm 26 and the strip 1, so that terminal 2 separates with strip 1, this second arm 27 is to be extended up with a junction 271 by the nearly lower end in the first arm 26 right sides, to form a upper end is free-ended cantilever, this second arm 27 also slightly is skewed to terminal 2 front sides and the outside, 22 of this contact sites are connected in this second arm, 27 upper ends, this contact site 22 is curved lamellar bodies, have guide function, and punching press is formed with a salient point 28 on this contact site 22; Terminal construction by the improvement of the present utility model of above-mentioned composition.

Consult shown in Figure 7, terminal 2 of the present utility model can be installed in the terminal accommodation holes 30 of insulating base frame 3 of connector, terminal 2 is the terminal accommodation holes 30 that are fixedly arranged on insulating base frame 3 by installation portion 20, and positioning tooth 23 clips that pass through installation portion 20 both sides are in terminal accommodation holes 30 inwalls of connector, and punching press is formed with a short convex body 24 on the installation portion 20, can be in order to increase installation portion 20 intensity, and can prevent that terminal 2 from producing and wave, locating effect is good, its resistance is very strong, the Plug Division 21 of this terminal 2 is to be exposed to insulating base frame 3 bottoms, can contact for the pin (figure slightly) that extend the chip below of connector, contact site 22 is to have good guide function, makes contacting with contact site 22 that pin can be certain, and finishes electrically being connected with mechanical between the pin of connector and chip.

The utility model mainly is to have second arm 27 of contact site 22, extend by the first arm 26 1 sides, but not directly extend by installation portion 20 upper ends, and the connecting portion 271 of second arm, 27 lower ends is roughly wide with second arm 27, make second arm 27 can form a rubber-like cantilever, and can have preferable elasticity and strength bigger, adaptation was preferable when terminal 2 contacted with the pin of chip, so as to reach preferable electrically and the mechanical effect that is connected.

In sum, the utility model is real to be rare utility model product for improving the defective of terminal structure commonly used, has novelty and creativeness.

Claims

1, a kind of terminal construction of improvement is characterized in that: the both sides of installation portion are formed with positioning tooth respectively; The Plug Division is connected in this installation portion lower end; Contact site is located at this installation portion top, extend to form the forked the first arm and second arm by the installation portion upper end, this second arm is extended with connecting portion up by the nearly lower end of the first arm one side, forming the upper end is free-ended cantilever, and slightly being skewed to the terminal front side and the outside, this contact site then is connected in this second arm upper end.

2, the terminal construction of improvement as claimed in claim 1 is characterized in that: this installation portion is provided with short convex body.

3, the terminal construction of improvement as claimed in claim 1 is characterized in that: this Plug Division is provided with long convex body, and this long convex body extends along this Plug Division length direction.

4, the terminal construction of improvement as claimed in claim 1 is characterized in that: the straight up extension of this first arm, this first arm top is connected with strip, is provided with transversal between this first arm and the strip.

5, the terminal construction of improvement as claimed in claim 1 is characterized in that: the connecting portion of this second arm lower end is roughly wide with second arm.

6, the terminal construction of improvement as claimed in claim 1 is characterized in that: this contact site is curved lamellar body.

7, the terminal construction of improvement as claimed in claim 1 is characterized in that: be formed with salient point on this contact site.