KR20100129473A - Electric and elastic contact terminal - Google Patents

Abstract

PURPOSE: A yoke structure of a stepping motor is provided to improve elasticity by making a part of inner wall thinner than a upper wall or a lower wall. CONSTITUTION: An elastic rubber core of a tube shape is provided. An adhesive(20) is interposed between the elastic rubber core and a polymer film(30). A metal layer(40) is formed on the back side of the polymer film as one body to be a conductor body(50). A supporter(60) is protruded from the outside of the conductive body and has a symmetric shape on the bottom of the elastic rubber core.

Description

Electric and elastic contact terminal

The present invention relates to an elastic electrical contact terminal, and more particularly to an elastic electrical contact terminal having good elasticity, elastic restoring force, electrical contact resistance and wear resistance.

In addition, the present invention relates to an elastic electrical contact terminal that is easy to be mounted on an object having a variety of opposite structures and is economically easy to manufacture.

In general, the elastic electrical contact terminal should have good electrical conductivity, excellent elasticity and elastic restoring force, easy mounting with an object to be mounted, and good adhesion strength with the object. Furthermore, the opposing object and the electrical contact resistance should be small.

US technology W. L. U.S. Patent Nos. 6,255,581 and 7,129,421 to Gore Associates, Inc., and Korean Patent No. 839,898, filed with Korean patents. According to this patent, the elastic electrical contact terminal is mounted on an object by soldering by surface mount (SMT), so it is difficult to provide a long product, and furthermore, the object to be mounted is difficult to apply to a non-planar device such as a printed circuit board. There are disadvantages. In addition, there is a disadvantage that expensive equipment is required for surface mounting.

Another conventional technique is U.S. Patent 4,968,854 to Vanguard Products corporation of the United States. According to this patent, the electrically conductive silicone rubber coating layer has a disadvantage that the electrical resistance is higher and the price is higher than that of the metal. In addition, in order to lower the electrical resistance of the electrically conductive silicone rubber, it is necessary to put a lot of metal powder. In this case, the surface is rough, so that the metal powder is easily released by external friction.

Another conventional technique is the US-based Laird Technology's thermoplastic foam elastomer, a so-called "thermoplastic sponge," a gasket wrapped with electrically conductive fibers. According to this technique, the cutting part of an electroconductive fiber gasket is easy to generate | occur | produce lint, and it is easy to fall off plating powder by external friction. In addition, conventional thermoplastic foamed elastomers have a disadvantage in that the elastic recovery rate is poor. In addition, the molten liquid insulating adhesive during the manufacturing process can escape to the surface of the electrically conductive fiber to increase the electrical resistance.

Therefore, the present invention is proposed to solve such a problem, and an object of the present invention is to provide an elastic electrical contact terminal having good elasticity, elastic restoring force and electrical conductivity.

Another object of the present invention is to provide an elastic electrical contact terminal which does not increase the electrical resistance of the metal layer because the elastic rubber adhesive which is electrical insulation does not escape to the metal layer.

Yet another object of the present invention is to provide an elastic electrical contact terminal which is easy to manufacture and inexpensive.

Still another object of the present invention is to provide an elastic electrical contact terminal having a low pressing force and excellent elasticity and elastic restoring force.

It is another object of the present invention to provide an elastic electrical contact terminal that is easily in electrical contact with an opposing object.

It is a further object of the present invention to provide a suitable elastic electrical contact terminal when the opposite object is assembled while pushing the side of the elastic electrical contact terminal.

Still another object of the present invention is to provide an elastic electrical contact terminal that is easy to mount on an object having various structures.

It is still another object of the present invention to provide an elastic electrical contact terminal having a strong adhesive force with an opposing object.

It is also an object of the present invention to provide an elastic electrical contact terminal having an electrically conductive member having good abrasion resistance against external friction.

According to one aspect of the invention, the tube-shaped non-foamed insulating elastic core; An electrically conductive member comprising a heat resistant polymer film surrounding the elastic rubber core except for a part of one side of the elastic rubber core via an elastic rubber adhesive and a metal layer formed on the rear surface of the heat resistant polymer film and exposed to the outside; And a protrusion which protrudes through a portion of the one surface and is integrally formed with the elastic rubber core to be fitted into an opposing object and mechanically coupled to the object. The electroconductive member formed on one surface after the protrusion is fitted to the object is provided with an elastic electrical contact terminal electrically connected to the electrically conductive portion of the object.

According to another aspect of the invention, the tube-shaped non-foamed insulating rubber core; A plastic supporter installed on one side of the elastic rubber core; And a heat resistant polymer film surrounding the elastic rubber core except for a part of one side of the elastic rubber core through an elastic rubber adhesive, and a metal layer formed on the back surface of the heat resistant polymer film and exposed to the outside. And the plastic supporter protrudes through a part of the one surface and is mechanically coupled to the opposite object, and the electrically conductive member formed on the one surface after the plastic supporter is fitted to the object is electrically conductive. An elastic electrical contact terminal is provided that is electrically connected to the portion.

According to another aspect of the invention, the tube-shaped non-foamed insulating rubber core; An electrically conductive member comprising a heat resistant polymer film surrounding the elastic rubber core except for a part of one side of the elastic rubber core via an elastic rubber adhesive and a metal layer formed on the rear surface of the heat resistant polymer film and exposed to the outside; And a double-sided electrically conductive adhesive tape adhered to the one side of the metal layer of the electrically conductive member and adhered to the opposite object, wherein the metal layer of the electrically conductive member is adhered to the object after the adhesive tape is adhered to the object. An elastic electrical contact terminal is provided that is electrically connected to the electrically conductive portion of the.

Preferably, the elastic rubber core may be a silicone rubber manufactured by extrusion and curing, and the corner portion where the upper surface and the side of the elastic rubber core meet may be rounded. In addition, preferably, one side of the elastic rubber core may be formed in a shape slightly entering from both ends to the center, and the partial thickness of the side wall of the inner hole of the elastic rubber core may be formed thinner than the thickness of the upper wall or the lower wall. Can be.

Preferably, the elastic rubber adhesive may be formed by curing the liquid insulating silicone rubber adhesive.

In addition, the thickness of the electrically conductive member may be within 0.006 mm to 0.05 mm and the electrical resistance may be 0.1 ohm or less, and the thickness of the heat resistant polymer film may be within 0.005 mm to 0.04 mm.

In addition, the thickness of the metal layer may be within 0.001mm to 0.01mm.

Preferably, the plastic supporter may be continuously produced by extrusion as an electrical insulator, and may include a support portion adhering to one side of the elastic rubber core and a protrusion integrally protruding from the support portion.

Preferably, the double-sided electrically conductive adhesive tape may be a thermoplastic polymer adhesive.

In addition, the double-sided electrically conductive adhesive tape is preferably attached to one side thereon before the elastic rubber adhesive is cured.

According to the above configuration, the elastic and elastic restoring force is good by the tube-shaped non-foaming insulating elastic core. In addition, the curable elastic rubber provides a reliable elastic restoring force.

In addition, the part where the upper side and the side meet is suitable when the opposite object is assembled by pushing the side of the elastic electrical contact terminal by the round-shaped tube-shaped non-elastic elastic rubber.

In addition, the elastic rubber adhesive has good elasticity and elastic restoring force, and once cured, it does not melt again by heat and maintains reliable adhesive force.

In addition, by making the thickness of the side wall of the inner hole of the tubular elastic rubber core thinner than the thickness of the upper wall or the lower wall, it is possible to have excellent elasticity and elastic restoring force while reducing the pressing force.

In addition, the bottom surface of the elastic rubber core is slightly pied from both ends to the center to facilitate electrical contact between the object and the metal layer.

In addition, the thin metal layer formed on the back surface of the thin polymer film has low electrical resistance, flexibility, and good abrasion resistance to external friction.

In addition, the elastic electrical contact terminal has a reliable elasticity and elastic restoring force by the thin conductive material.

In addition, the liquid insulating elastomeric adhesive interposed between the elastic rubber core and the polymer film does not leak into the metal layer by the polymer film during curing, and thus does not increase the electrical resistance of the metal layer.

In addition, the electrically conductive double-sided adhesive tape is easy to attach to opposing objects of various structures.

In addition, since the elastic rubber core and the plastic supporter manufactured by extrusion are used, it is easy to economically manufacture long electrical contact terminals.

In addition, projections integrally formed on one side of the elastic rubber core or supports mounted on one side are well fitted in the holes of the opposing object, and once inserted, do not fall out mechanically, thus providing reliable adhesive strength and mounting. It is easy to mount even if the object to be made does not have a flat structure.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

1. First embodiment

1 shows an electrical contact terminal 100 according to a first embodiment of the present invention.

As shown, a non-foamed insulating silicone rubber in the form of a tube is used as the elastic rubber core 10, and preferably, the corner portion where the upper side and the side meet is rounded.

In addition, the thickness of a part of the side wall of the inner hole of the elastic rubber core 10 is thinner than the thickness of the upper wall or the lower wall, and the bottom surface of the elastic rubber core is formed to have a slightly hollow structure at both ends to the center.

In addition, the elastic rubber adhesive 20 of the elastic rubber core is interposed between the elastic rubber core 10 and the polymer film 30 to reliably adhere the elastic rubber core 10 and the polymer film 30.

The metal layer 40 is integrally formed on the back surface of the polymer film 30 to form the conductive member 50. The conductive conductive member 50 may be, for example, a thin flexible laminated metal film FCCL. have.

A part of the underside of the elastic rubber core 10, in this embodiment, is not wrapped in the center of the width direction by the conductive member 50, as will be described later, the supporter 60 to the outside of the conductive member 50 in this portion ) Is projected.

Here, since the lower surface of the elastic rubber core 10 is low in hardness and not precise in size, it does not form a flat surface reliably, and thus the lower surface of the elastic rubber core 10 is manufactured into a shape that slightly enters from both ends to the center. In this way, by slightly inclining toward the center, the liquid silicone rubber adhesive protruding from both ends of the conductive member 50 during the manufacturing of the electrical contact terminal 100 is not covered on the metal layer 40 so that the metal layer ( 40) minimizes electrical isolation.

In addition, the liquid elastic rubber adhesive 20 partially protruding from both ends of the conductive member 50 is located at a portion where the conductive member 50 is not formed and does not affect the electrical conductivity of the metal layer 40. .

Preferably, by making the thickness of the sidewall of the inner hole of the tubular elastic core 10 thinner than the thickness of the upper wall or the lower wall, it is possible to have excellent elasticity and elastic restoring force while reducing the pressing force.

The elastic rubber core 10 may be continuously manufactured by extrusion and heat curing, and may be either silicone rubber or synthetic rubber. In addition, the cross section of the tubular elastic rubber core 10 may have various shapes in addition to the shape shown in FIG.

Here, the tubular elastic rubber core 10 is a thermosetting non-foamed insulating elastic rubber manufactured by curing, and has excellent elastic restoring force than a conventional thermoplastic foamed insulating elastomer, and particularly has a more reliable characteristic in heat resistant conditions. .

The elastic rubber adhesive 20 is formed by curing the liquid silicone rubber adhesive, and at the same time serves as the adhesive and the elastic body. Preferably, the elastic rubber adhesive 20 is an insulating silicone rubber adhesive.

In general, since the size of the elastic rubber core 10 is not precise, the liquid elastic rubber adhesive 20 interposed between the elastic rubber core 10 and the electrically conductive member 50 may be electrically conductive. Can be squeezed out of the end. At this time, the protruding elastic rubber adhesive 20 may interfere with the electrical contact between the metal layer 40 and the ground pattern 70 of the object on which the electrical contact terminal 100 is mounted, so that an appropriate amount of liquid elastic rubber adhesive may be used. Should be used.

In addition, as described above, the electrically conductive member 50 may be a flexible flexible metal laminate film (FCCL) having a thin thickness, and the metal layer 40 is formed on the outer surface of the electrical contact terminal 100 to be electrically conductive. .

Here, the liquid silicone rubber adhesive that is cured in the state interposed between the outer circumferential surface of the elastic rubber core 10 and the polymer film 30 during the process of manufacturing the electrical contact terminal 100 can pass through the polymer film 30. Since the liquid silicone rubber adhesive is cured by heat in the state interposed between the elastic rubber core 10 and the polymer film 30, it becomes the elastic rubber adhesive 20, and escapes to the metal layer 40 of the outer circumferential surface. Therefore, the electrical transition of the metal layer 40 is not increased.

In addition, the thickness of the metal layer 40 of the electroconductive member 50 is between 0.001 mm and 0.01 mm in view of low electrical resistance and excellent flexibility, and the polymer film 30 is made of polyvinyl, polyester or polyimide ( The thickness is between 0.005 mm and 0.04 mm in consideration of flexibility and mechanical strength with either of the PI) films. However, the polymer film 30 may be, but is not limited to, a laminated polymer layer having a metal layer 40 formed on one side thereof.

As such, the thin metal layer 40 and the polymer film 30 have less influence on the elasticity and elastic restoring force of the elastic rubber core 10.

Preferably, the metal layer 40 may be formed by vapor deposition or plating, or metal foil may be applied, and any one or combination thereof may be used. The electrical resistance of the metal layer 40 is preferably 0.1 ohm or less.

As the polymer film 30, a polyimide film may be used when used at a high temperature, and either polyester or polyvinyl film may be used at a general temperature.

Here, although the electrically conductive fiber may be used as the electrically conductive member 50, lint may occur on the cut surface and metal powder may fall off when friction with an external object occurs. In addition, the liquid elastic rubber adhesive 20 has a disadvantage in that it is leaked to the surface of the electrically conductive fibers to increase the electrical resistance.

Preferably, the protrusion 60 protruding from the bottom surface of the elastic rubber core 10 is manufactured integrally with the elastic rubber core 10 by an extrusion process. The protrusion 60 is easily inserted into the object to be mounted, but has a structure that is difficult to pull out. Along with this, the elastic rubber core 10 in which the protrusions 60 are integrally protruded so as not to easily fall out of the object should have a hardness of at least a certain level, so the hardness is preferably Shore A 50 or more.

Preferably, the protrusion 60 is formed to have a symmetrical shape at the center of the bottom surface of the elastic rubber core 10.

The elastic electrical contact terminal 100 manufactured as described above has the following advantages.

First, the electrical contact terminal 100 has good elasticity and elastic restoring force and low electrical resistance by the structure and material of the elastic rubber core 10, the elastic rubber adhesive 20, and the thin conductive electroconductive member 50.

In addition, the bottom surface of the elastic rubber core 10 is slightly inclined from both ends to the center so that the elastic rubber adhesive 20 has less influence on the metal layer 40.

In addition, the elastic rubber adhesive 20 does not leak through the metal layer 40 by the polymer film 30 and thus does not affect the electrical resistance of the metal layer 40.

In addition, the protrusions 60 protruding from the bottom of the elastic rubber core 10 can be easily inserted into the object and do not fall easily after being inserted once to form a reliable joint. Since the projection 60 is continuously manufactured by extrusion, the productivity is good, and the projection 60 makes it easy to mount the electrical contact terminal 100 to various objects.

In addition, since the elastic rubber adhesive 20 does not melt again by heat, it maintains reliable adhesion.

In addition, the metal layer 40 has good abrasion resistance when rubbing against an opposing object, has low electrical resistance, and is inexpensive. In addition, the metal layer 40 formed on the bottom surface of the elastic rubber core 10 is elastic and easily in electrical contact with the conductive portion of the object to be mounted.

In addition, since the corner portion where the upper surface and the side of the elastic rubber core 10 meet is rounded, it is suitable when the opposite object is assembled while pushing the side of the elastic electrical contact terminal.

In addition, by making the thickness of the side wall of the inner hole of the tubular elastic core 10 thinner than the thickness of the upper wall or the lower wall, it is possible to have excellent elasticity and elastic restoring force while reducing the pressing force.

The manufacturing method of the electrical contact terminal 100 having such a structure will be described.

The liquid silicone rubber adhesive, which is cured by heat on the surface of the polymer film 30 having a constant width on which the metal layer 40 is formed on the back surface, forms a coating layer with a thickness of 0.01 mm to 0.05 mm.

On top of this coating layer, a tube-shaped non-foamed insulating rubber core 10 having a projection 60 is formed on the bottom of the roll, which is already cured, and has a shape similar to that of the elastic rubber core 10 without protrusions. It wraps with the electroconductive member 50 while passing through the jig. At this time, the conductive member 50 is not wrapped in the protrusion 60 at the bottom of the elastic rubber core 10.

At this time, the electroconductive member 50 is composed of a polymer film 30 or a laminated polymer layer, the intervening liquid silicone rubber adhesive does not escape to the metal layer 40.

Preferably, the corner portion where the upper and side surfaces of the elastic rubber core 10 meet is rounded, and the bottom surface has a slightly hollow structure at both ends to the center. At this time, since the elastic rubber core 10 is not precise in size, the liquid silicone rubber adhesive may stick out from the end of the polymer film 30 and be buried on the metal layer 40 formed on the back surface of the polymer film 30. Therefore, as much of the excess of the liquid silicone rubber adhesive squeezing out as possible, and also to use a separate auxiliary device to prevent the squeeze out excess on the metal layer (40).

At this time, if the thickness of the coating layer of the liquid silicone rubber adhesive is too thin, the adhesive strength between the insulating elastic core 10 and the polymer film 30 is reduced, and if the thickness of the coating layer is too thick, the liquid silicone rubber adhesive is an electrically conductive member ( There is a disadvantage in that a lot of exit between the ends of 50).

Thereafter, the polymer film 30 wrapping the insulating elastic core 10 through the liquid silicone rubber adhesive is placed in a mold having a dimension slightly larger than that of the insulating elastic core 10 and the liquid phase interposed therebetween. Of the silicone rubber adhesive with heat, for example, at about 180 ° C. for 10 seconds, the liquid silicone rubber adhesive is cured and converted into an elastic rubber adhesive 20 to insulate the elastic rubber core 10 and the polymer film 30. It has elasticity while acting as an adhesive to bond the.

At this time, by increasing the temperature of the mold in order to speed up the curing rate of the liquid silicone rubber adhesive can improve the working speed.

Since the liquid silicone rubber adhesive does not melt again by heat once cured, it maintains reliable adhesive performance after curing.

Thereafter, the electric contact terminal 100 in a bulk state is manufactured by cutting to a predetermined size.

In this embodiment, a copper and tin plated polyester film was used as the metal layer 40 of the electroconductive member 50, and the rubber core 10 and the rubber adhesive 20 used silicon rubber. .

The electrical contact terminal 100 manufactured as described above has a part of the upper surface, the side surface, and the lower surface formed of the metal layer 40 to be inserted into the object to be opposed, and is electrically and mechanically connected to the object.

In addition, the elastic rubber adhesive has less influence on the metal layer 40, and the electrical contact resistance with the object facing the metal layer 40 is small.

In addition, the polymer film 30 and the metal layer 40 having a thin thickness are flexible, and thus have little effect on the elasticity and the restoring force of the elastic rubber core 10 and the elastic rubber adhesive 20, thereby providing the elastic electrical contact terminal 100. ) Has reliable elasticity and elastic restoring force.

In addition, the protrusion 60 of the bottom surface of the elastic rubber core 10 in which the electroconductive member is not formed makes it easy to insert into opposing objects having various structures, and does not fall well after being inserted once.

In addition, it is suitable when the opposite object is assembled while pushing the side of the elastic electrical contact terminal by the non-foamed elastic rubber core 10 having a rounded tube-shaped corner portion where the upper side and the side meet.

In addition, by making the thickness of the side wall of the inner hole of the tubular elastic core 10 thinner than the thickness of the upper wall or the lower wall, it is possible to have excellent elasticity and elastic restoring force while reducing the pressing force.

2. Second embodiment

2 shows an elastic electrical contact terminal 200 according to a second embodiment of the present invention.

Unlike the first embodiment described above, according to this embodiment, the supporter 70 is separately installed on the bottom surface of the elastic rubber core 10 to protrude to the outside of the electroconductive member 50.

Referring to FIG. 2, the supporter 70 is in contact with the bottom surface of the elastic rubber core 10, and is integrally formed with the support 72, which is covered by the electrically conductive member 50, and integrally formed with the support 72. It consists of a protrusion 74 protruding out of the conductive member 50.

Here, the protrusions 74, like the projections 60 of the first embodiment, can be fitted well to the opposite object, and have a structure that does not fall well after being fitted once.

Preferably, the supporter 70 may be formed of a plastic material and may have a bar shape continuously manufactured by extrusion.

Preferably, one side of the support portion 72 is flat so as to be attached to the bottom surface of the elastic rubber core 10.

Preferably, the supporter 70 is formed to be symmetrical left and right at the center of the bottom surface of the elastic rubber core 10.

Preferably, the supporter 70 and the elastic rubber core 10 may be bonded by a third adhesive.

Such an electrical contact terminal 200 has the following advantages.

Tensile strength and hardness of the supporter 70 made of plastic is usually larger and higher than that of the elastic rubber core 10, so that the supporter 70 may have a more precise structure than the supporter 60 of the first embodiment, and is inserted into the object once for the same reason. Protuberances do not fall further.

Further, for the same reason, it is easy to wrap the conductive member 50 on the elastic rubber core 10 by the plastic supporter 70.

The manufacturing method of the electrical contact terminal 200 having such a structure will be described.

A liquid silicone rubber adhesive, which is cured by heat on the surface of the polymer film 30 having a constant width, on which the metal layer 40 is formed, forms a coating layer with a thickness of 0.01 mm to 0.05 mm.

The elastic rubber core 10 and the plastic supporter 70, which are already cured and roll-shaped on the coating layer, are placed and wrapped with an electrically conductive member 50 while passing through a jig similar in shape to the elastic rubber core 10. At this time, the protrusion 74 of the supporter 70 does not wrap the electrically conductive member 50.

Subsequently, the polymer film 30 surrounding the elastic rubber core 10 through the liquid silicone rubber adhesive is placed in a mold having a dimension slightly larger than that of the insulating elastic core 10 so that the liquid film interposed therebetween When the silicone rubber adhesive is cured for 10 seconds at heat, for example, at about 180 ° C., the liquid silicone rubber adhesive is cured and is converted into an elastic rubber adhesive 20 to thereby insulate the insulating elastic core 10 and the polymer film 30. It has elasticity while acting as an adhesive.

Subsequent manufacturing processes are the same as in the first embodiment.

3 shows a state in which the electrical contact terminal 100 of the first embodiment is mounted on an object such as a printed circuit board.

When the electrical contact terminal 100 is fully inserted into the object 80, the bottom surface of the metal layer 40 is in mechanical and electrical contact with the electrically conductive portion on the object 80, for example, the ground pattern 82. .

At this time, the projection 60 integrally formed on the bottom surface of the electrical contact terminal 100 is fitted into the hole 84 formed in the object 80, the structure of the projection 60 is easy to insert into the hole 84. But withdrawal is difficult.

By such a structure, the electrical contact terminal 100 can be easily mounted to the object 80 to be mounted, and after being mounted, can have elastic and reliable mechanical and electrical coupling.

In addition, the edge portion where the upper side and the side meet is suitable when the object facing the upper side is assembled by pushing the side of the elastic electrical contact terminal by the round tube-shaped non-foamed elastic core (10).

In addition, some thicknesses of the sidewalls of the inner holes of the tubular elastic rubber core are thinner than upper or lower wall thicknesses, and have excellent elasticity and elastic restoring force with less pressing force.

In addition, the lower surface of the elastic rubber core is slightly dug from both ends to the center to facilitate electrical contact between the opposing object and the metal layer.

3. Third embodiment

4 shows an electrical contact terminal 300 according to the third embodiment.

As shown, the double-sided electroconductive adhesive tape 90 is attached to one side of the elastic rubber core 10 which is not wrapped, that is, the electroconductive member 50 is spaced apart.

Here, since the double-sided electrically conductive adhesive tape 90 is hardly adhered on the cured elastic rubber adhesive 20, during the process of manufacturing the electrical contact terminal 300, the liquid phase protrudes from both ends of the electrically conductive member 50. If one side of the double-sided electrically conductive adhesive tape 90 is attached to the elastic rubber adhesive before it is cured, the liquid elastic rubber adhesive may have a strong adhesive strength with the adhesive tape 90 after curing.

In this case, at least a portion of the adhesive tape 90 is in direct contact with the metal foil 40 without the elastic rubber adhesive 20 so that the metal foil 40 and the adhesive tape 90 must be electrically connected. As a result, the metal layer 40 of the electroconductive member 50 is electrically connected to the electrically conductive portion of the opposite object by the adhesive tape 90.

Preferably, the width of the electrically conductive double-sided adhesive tape 90 is approximately similar to the width between both ends of the electrically conductive member 50, and the length is the same as the length of the electrical contact terminal 300. In addition, a release tape (Release Tape) (not shown) may be formed on the rear surface of the adhesive tape 90.

In this embodiment, since the surface of the metal layer 40 is smooth and the adhesive tape 90 adheres well to the metal layer 40, the adhesive amount of the adhesive tape 90 is at least well adhered and the adhesive strength is good.

Preferably, the electrically conductive double-sided adhesive tape 90 may be prepared by mixing a metal powder with an acrylic, epoxy or urethane adhesive.

By such a structure and material, the electrical contact terminal 300 is easily elastically in electrical and mechanical contact with the opposing object having a variety of structures.

In addition, the adhesive tape 90 covers the elastic rubber adhesive 20 protruding from the bottom of the elastic rubber core 10 in which the conductive member 50 is not wrapped and is in electrical contact with the metal layer 40 on the bottom. It can make reliable electrical contact with the object.

On the other hand, the electrical contact terminal 300 and the object may increase the electrical contact resistance by the double-sided electrically conductive adhesive tape 90, the adhesive tape 90 has a disadvantage in that several performance after a long time left at high temperature.

The electrical contact terminal 300 of FIG. 4 has the advantages and features of the electrical contact terminals 100 and 200 of FIGS. 1 and 2 except for a method of electrically and mechanically coupling an opposing object.

In the above description, the embodiment of the present invention has been described, but various changes or modifications can be made at the level of those skilled in the art. Such changes and modifications may be said to belong to the present invention without departing from the scope of the present invention, and therefore, the scope of the present invention should be judged by the claims described below.

1 shows an electrical contact terminal 100 according to a first embodiment of the present invention.

2 shows an elastic electrical contact terminal 200 according to a second embodiment of the present invention.

3 shows a state in which the electrical contact terminal 100 of the first embodiment is mounted on an object such as a printed circuit board.

4 shows an electrical contact terminal 300 according to the third embodiment.

Claims (15)

Non-foamed insulating elastomeric cores in the form of tubes; An electrically conductive member comprising a heat resistant polymer film surrounding the elastic rubber core except for a part of one side of the elastic rubber core via an elastic rubber adhesive and a metal layer formed on the rear surface of the heat resistant polymer film and exposed to the outside; And A protrusion projecting through a portion of the one surface, the protrusion being integrally formed with the elastic rubber core and fitted into an opposite object to be mechanically coupled; And the electroconductive member formed on the one surface after the projection is fitted to the object is electrically connected to an electrically conductive portion of the object. Non-foamed insulating elastomeric cores in the form of tubes; A plastic supporter installed on one side of the elastic rubber core; And Except for a part of one side of the elastic rubber core via an elastic rubber adhesive, and composed of a heat-resistant polymer film surrounding the elastic rubber core and an electrically conductive member formed on the back surface of the heat-resistant polymer film and exposed to the outside Become, The plastic supporter is projected through a portion of the one surface is fitted to the opposite object and mechanically coupled, And the electrically conductive member formed on one surface of the plastic supporter after being inserted into the object is electrically connected to an electrically conductive portion of the object. Non-foamed insulating elastomeric cores in the form of tubes; An electrically conductive member comprising a heat resistant polymer film surrounding the elastic rubber core except for a part of one side of the elastic rubber core via an elastic rubber adhesive and a metal layer formed on the rear surface of the heat resistant polymer film and exposed to the outside; And A double-sided electroconductive adhesive tape adhered to the one side of the metal layer of the electroconductive member and adhered to the opposing object; And the metal layer of the electrically conductive member is electrically connected to the electrically conductive portion of the object after the adhesive tape adheres to the object. The method according to any one of claims 1 to 3, The elastic rubber core is an elastic electrical contact terminal, characterized in that the silicone rubber produced by extrusion and curing. The method according to claim 4, An elastic electrical contact terminal, characterized in that the corner portion where the upper surface and the side of the elastic rubber core meet is rounded. The method according to claim 4, One side of the elastic rubber core is an elastic electrical contact terminal, characterized in that formed in a shape slightly entering from the both ends to the center. The method according to claim 4, And the thickness of the side wall of the inner hole of the elastic rubber core is thinner than the thickness of the upper wall or the lower wall. The method according to any one of claims 1 to 3, The elastic rubber adhesive is an elastic electrical contact terminal, characterized in that the liquid insulating silicone rubber adhesive is formed by curing. The method according to any one of claims 1 to 3, The thickness of the electrically conductive member is within 0.006mm to 0.05mm and the electrical resistance of the elastic electrical contact terminal, characterized in that less than 0.1 ohm. The method according to any one of claims 1 to 3, The thickness of the heat-resistant polymer film is an elastic electrical contact terminal, characterized in that within 0.005mm to 0.04mm. The method according to any one of claims 1 to 3, The thickness of the metal layer is an elastic electrical contact terminal, characterized in that within 0.001mm to 0.01mm. The method according to claim 2, The plastic supporter is an elastic electrical contact terminal, characterized in that continuously produced by extrusion as an electrical insulator. The method according to claim 2, The plastic supporter is characterized in that the elastic electrical contact terminal consisting of a support portion adhered to one side of the elastic rubber core, and a protrusion formed integrally protruding from the support portion. The method according to claim 3, The double-sided electrically conductive adhesive tape is an elastic electrical contact terminal, characterized in that the thermoplastic polymer adhesive. The method according to claim 3, The double-sided electrically conductive adhesive tape is an elastic electrical contact terminal, characterized in that one side is attached thereon before the elastic rubber adhesive is cured.

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