TW201709618A - Electric contactor - Google Patents

Abstract

An electric contactor comprises a spring, a top pillar, a bottom pillar, and an electrical contacting member. The electrical contacting member includes an inserting portion and a clipping portion. The clipping portion has two gripping arms and a gripping space between the gripping arms. The inserting portion is inserted in the gripping space along height direction downwardly to form a stable contact pressure between the inserting portion and the two gripping arms when in the retracted position. Thus, the resistance to current of the electric contactor is increased, and the excess of the contact resistance of the electric contactor since the insufficiency of the contact pressure is solved.

Description

Electrical contact

This invention relates to the field of semiconductor electronic testing, and more particularly to an electrical contact.

The electrical contact is disposed in the conductive loop of the electrical appliance, and can be divided into a fixed electrical contact, a breakable electrical contact, and a movable electrical contact according to the structure. The power-off contact has the advantages of fast breaking speed and is widely used in the field of semiconductor electronic testing, and includes an elastic body, a static contact and a moving contact. When the elastic body is stretched, the static contact and the movable contact are separated from each other to be in a power-off state. When the elastic body contracts, the static contact and the movable contact contact each other to realize electrical signal conduction.

Since the contact resistance of the electrical contact is one of the key factors affecting its performance, the most likely cause of the increase in contact resistance and the poor current resistance is the insufficient contact pressure between the static contact and the moving contact. . An increase in contact resistance can result in undesirable effects such as fusion welding of the stationary contact and the moving contact, and short circuit of the electrical device.

Accordingly, it is an object of the present invention to provide an electrical contact that solves the problem of excessive contact resistance due to insufficient contact pressure.

The technical means for solving the problems of the prior art provides an electrical contact comprising: an elastic body in a wave configuration, and the elastic system has an elastic force that expands and contracts along a height direction; a post connected to an upper end of the elastic body; a bottom post connected to a lower end of the elastic body, the top post and the bottom post passing through the elastic body in a height direction between a stretched position and a retracted position a relative telescopic sliding; and an electric contact member comprising an insertion post and a clamping member connected to the top post and extending substantially downward in the height direction on an outer side of the elastic body, the clamping member is connected Extending substantially upwardly in the height direction on the outer side of the elastic body, the clamping member has two clamping arms, and a clamping space is formed between the two clamping arms, wherein in the extended position, The insertion post and the two clamping arms are spaced apart from each other in the height direction. In the retracted position, the insertion post is inserted downwardly along the height direction in the clamping space and the two clamping members The arm is clamped in contact.

In an embodiment of the invention, an electrical contact is provided, the upper ends of the two clamping arms respectively have a slanted leading edge portion, and the two inclined leading edge portions are individually inclined downwardly toward the clamping space. The insertion post is inserted.

In an embodiment of the invention, an electrical contact is provided, the lower end of the insertion post being a V-shaped end, the V-shaped end being shaped to fit the inclined leading edge of the two clamping arms And guiding the insertion post to be inserted into the clamping space.

In an embodiment of the invention, an electrical contact is provided, the lower end of the insertion post being a V-shaped end.

In an embodiment of the invention, an electrical contact is provided, the electrical contact member being disposed on one side of the thickness direction of the elastomer.

In an embodiment of the invention, an electrical contact is provided, the clamping member comprising a base portion coupled to the bottom post and extending upwardly from the two clamping arms.

In an embodiment of the invention, an electrical contact is provided, the width of the base portion being tapered upwardly.

In an embodiment of the invention, an electrical contact is provided, the width of the clamping space being tapered upwardly.

In an embodiment of the invention, an electrical contact is provided, the top post comprising a shoulder extending in a width direction, and the elastomer and the insertion post are coupled to the shoulder.

In an embodiment of the invention, an electrical contact is provided, and an upper end portion of the top post and/or a lower end portion of the bottom post is a trapezoidal portion, a rectangular portion, a tapered portion or a dovetail portion. .

The electrical contact of the present invention has the following effects. In the retracted position, the insertion post is inserted into the clamping space downwardly along the height direction and is in contact with the two clamping arms to form a conductive path, and the insertion post and the clamping member are A stable contact pressure is formed between the clamping arms, so that the contact resistance does not rise, and the current resistance characteristic of the electrical contacts can be increased to avoid melting of the insertion post of the electrical contact or the two clamping arms of the clamping member. Bad consequences such as welding and electrical short circuits.

Embodiments of the present invention will be described below based on Figs. 1 to 7 . This description is not intended to limit the embodiments of the invention, but is an embodiment of the invention.

As shown in FIG. 1 to FIG. 4, an electrical contact 100 according to a first embodiment of the present invention comprises: an elastic body 1, a top post 2, a bottom post 3, and an electric contact member 4. .

The elastic body 1 has a wave configuration and has an elastic force that expands and contracts in a height direction H. As shown in FIGS. 2 and 3, the top post 2 is coupled to an upper end 11 of the elastic body 1. The bottom post 3 is attached to the lower end 12 of the elastomer. The bottom post 2 and the top post 1 are relatively telescopically slipped between the extension position (such as FIGS. 1 to 3) and a retracted position (such as FIG. 4) in the height direction H by the elastic body 1. .

As shown in FIGS. 1 and 3, the electric contact member 4 includes an insertion post 41 and a clamping member 42. The insertion post 41 is coupled to the top post 2 and extends downward in the height direction H at a distance S1 from the elastic body 1. The clamping member 42 is coupled to the bottom post 3 and extends upward in the height direction H at a distance S2 from the elastic body 1. The clip 42 has two clamp arms 421, 422. A clamping space C is formed between the two clamping arms 421 and 422. As shown in FIGS. 1 to 3, in the extended position, the insertion post 41 and the two clamp arms 41, 422 are spaced apart from each other in the height direction H. As shown in FIG. 4, in the retracted position, the insertion post 41 is inserted downwardly in the height direction H in the clamping space C and is in contact with the two clamping arms 421, 422.

As shown in FIG. 1, according to the electrical contact 100 of the first embodiment of the present invention, the upper ends of the two clamping arms 421, 422 respectively have a sloped leading edge portion 423. The two inclined flange portions 423 are individually inclined downward toward the sandwiching space C to guide the insertion of the insertion post 41. Moreover, the lower end portion of the insertion post 41 is a V-shaped end portion 411, and the shape of the V-shaped end portion 411 is adapted to the inclined leading edge portion 423 of the two clamping arms 421, 422, and the insertion is guided. The column 41 is inserted into the sandwiching space C. Of course, the invention is not limited thereto. The lower end portion of the insertion post 41 may also be a rectangular end portion, and the insertion post 41 is guided by the two inclined guide edge portions 423. Alternatively, the upper ends of the two clamping arms 421, 422 may also be a rectangular portion, and the insertion post 41 is guided between the two clamping arms 421, 422 by the V-shaped end portion 411.

As shown in FIG. 1, according to the electrical contact 100 of the first embodiment of the present invention, the width of the clamping space C is gradually narrowed upward, and the two clamping arms 421, 422 are closely clamped to the same. Insert the column 41. As shown in Fig. 1, according to the electrical contact 100 of the first embodiment of the present invention, the width of the base portion 424 is gradually narrowed upward.

As shown in FIG. 1, in accordance with the electrical contact 100 of the first embodiment of the present invention, the clamping member 42 includes a base portion 424. The base portion 424 is coupled to the bottom post 3 and extends upwardly from the two clamp arms 421, 422.

As shown in FIG. 3, according to the electrical contact 100 of the first embodiment of the present invention, the electric contact member 4 is disposed on one side of the thickness direction T of the elastic body S. Of course, the invention is not limited thereto. The electric contact member 4 may be provided on one side of the elastic body S in the width direction W.

As shown in FIG. 1, according to the electrical contact 100 of the first embodiment of the present invention, the top post 2 includes a shoulder 21 extending in the width direction W, and the elastic body 1 and the insertion post 41 are Connected to the shoulder 21 .

As shown in FIG. 1 and FIG. 2, according to the electrical contact 100 of the first embodiment of the present invention, an upper end portion 22 of the top post 2 and a lower end portion 31 of the bottom post 3 are a rectangular portion. . Of course, the invention is not limited thereto. In an electric contact 100a according to a second embodiment of the present invention, the upper end portion 22 of the top post 2a and the lower end portion 31 of the bottom post 3a are a trapezoidal portion. In an electrical contact 100b according to a third embodiment of the present invention, the upper end portion 22 of the top post 2b and the lower end portion 31 of the bottom post 3b are tapered portions. In the electric contact 100c of a fourth embodiment of the present invention, the upper end portion 22 of the top post 2c and the lower end portion 31 of the bottom post 3c are a dovetail portion. Of course, the invention is not limited thereto. The shape of the upper end portion 22 of the top 2 and the lower end portion 32 of the bottom post 3 may be different from each other.

The above description and description are only illustrative of the preferred embodiments of the present invention, and those of ordinary skill in the art can make other modifications in accordance with the scope of the invention as defined below and the description above, but such modifications should still be It is within the scope of the invention to the invention of the invention.

100, 100a, 100b, 100c‧‧‧ electrical contacts
1‧‧‧ Elastomers
11‧‧‧Upper
12‧‧‧Bottom
2, 2a, 2b, 2c‧‧‧ top column
21‧‧‧ shoulder
22‧‧‧Upper
3, 3a, 3b, 3c‧‧‧ bottom column
31‧‧‧ lower end
4‧‧‧Electrical contact components
41‧‧‧ Insert column
411‧‧‧V-type end
42‧‧‧Clamping parts
421, 422‧‧‧ clip arms
423‧‧‧Tilting edge
424‧‧‧Blocks
C‧‧‧Clamping space
H‧‧‧ Height direction
T‧‧‧ thickness direction
W‧‧‧Width direction

Fig. 1 is a front elevational view showing an electrical contact in a stretched position in accordance with a first embodiment of the present invention. Fig. 2 is a rear elevational view showing the electrical contact of the first embodiment according to the present invention in a stretched position. Fig. 3 is a side view showing the electric contact according to the first embodiment of the present invention in a stretched position. Figure 4 is a front elevational view showing the electrical contact of the first embodiment of the present invention in a retracted position. Figure 5 is a front elevational view showing an electrical contact in accordance with a second embodiment of the present invention. Figure 6 is a front elevational view showing an electrical contact in accordance with a third embodiment of the present invention. Figure 7 is a front elevational view showing an electrical contact in accordance with a fourth embodiment of the present invention.

100‧‧‧ electrical contacts

1‧‧‧ Elastomers

2‧‧‧Top column

21‧‧‧ shoulder

22‧‧‧Upper

3‧‧‧ bottom column

31‧‧‧ lower end

4‧‧‧Electrical contact components

41‧‧‧ Insert column

411‧‧‧V-type end

42‧‧‧Clamping parts

421, 422‧‧‧ clip arms

423‧‧‧Tilting edge

424‧‧‧Blocks

C‧‧‧Clamping space

H‧‧‧ Height direction

W‧‧‧Width direction

Claims (10)

An electrical contact comprising: an elastic body in a wave configuration, and the elastic system has an elastic force extending and contracting in a height direction; a top post connected to an upper end of the elastic body; a bottom column connected At the lower end of the elastic body, the top post and the bottom post are relatively telescopically slipped between the extended position and the retracted position in the height direction by the elastic body; and an electric contact member including an insertion post and a clamping member connected to the top post and extending substantially downward in the height direction on an outer side of the elastic body, the clamping member being coupled to the bottom post and substantially in the height direction on the outer side of the elastic body Extending upwardly, the clamping member has two clamping arms, and a clamping space is formed between the two clamping arms, wherein the insertion post is spaced apart from the two clamping arms in the height direction in the extended position When not in contact, in the retracted position, the insertion post is inserted into the clamping space downwardly in the height direction and is in contact with the two clamping arms. The electrical contact of claim 1, wherein the upper ends of the two clamping arms each have a slanted leading edge portion, and the two inclined leading edge portions are individually inclined downward toward the clamping space to guide the insertion post. insert. The electrical contact of claim 2, wherein the lower end of the insertion post is a V-shaped end, and the shape of the V-shaped end is adapted to the inclined leading edge portion of the two clamping arms. The insertion post is inserted into the clamping space. The electrical contact of claim 1, wherein the lower end of the insertion post is a V-shaped end. The electrical contact of claim 1, wherein the electrical contact member is disposed on one side of the thickness direction of the elastic body. The electrical contact of claim 1, wherein the clamping member comprises a base portion coupled to the bottom post and the two clamping arms extend upwardly. The electrical contact of claim 5, wherein the width of the base portion is tapered upward. The electrical contact of claim 1, wherein the width of the clamping space is tapered upwardly. The electrical contact of claim 1, wherein the top post includes a shoulder extending in a width direction, and the elastic body and the insertion post are coupled to the shoulder. The electrical contact of claim 1, wherein an upper end of the top post and/or a lower end of the bottom post is a trapezoidal portion, a rectangular portion, a tapered portion or a dovetail portion.