JP5336937B2 - connector - Google Patents

Description

  The present invention relates to a connector, and more particularly to a connector that obtains connection with a connection object using a film having a contact portion.

  Patent Document 1 discloses a connector of a type in which a conductor formed on a film-like substrate is brought into surface contact with an object to be connected.

  Patent Document 2 discloses a connector of a type in which a film having a large number of through holes is arranged on the surface of an elastic body such as rubber, and a projection serving as an electrode inserted and held in these through holes is brought into contact with an object to be connected. Has been.

  Patent Document 3 discloses a connection member in which a contact portion is disposed on one surface of an insulating film disposed on an elastic body such as rubber, and the contact portion is pressed against an object to be connected by pressing the film with the elastic body. It is disclosed.

JP 2007-95492 A JP-A-8-203583 JP 2007-213985 A

  However, in the connector disclosed in Patent Document 1, the connection reliability is inferior in a state where contaminants, foreign matters, etc. are attached to the connection object.

  Moreover, since the connector disclosed in Patent Document 2 has a structure in which a protrusion contacts a connection object to obtain a connection, there is a possibility that the protrusion is worn, scraped, peeled off due to repeated connection. Further, the protrusion may cause dents, scratches and the like that cause corrosion on the connection target.

  Moreover, since the connection member disclosed in Patent Document 3 has a structure in which the film is directly pressed by an elastic body such as rubber, a high contact pressure cannot be obtained between the contact portion and the connection object.

  Therefore, the subject of this invention is providing the connector which can implement | achieve a high contact pressure irrespective of the structure which press-contacts a contact part to a connection target object with an elastic body.

According to an aspect of the present invention, an elastic body, an insulating film disposed on the elastic body, and a contact portion disposed on one surface of the film are connected to connect the connection objects. In the connector, another member having higher rigidity than the elastic body is provided between the opposite surface of the film and the elastic body, and the separate member is at least one wire provided at a position facing the contact portion. connector characterized in that it consists is obtained.

  A plurality of the contact portions may be provided apart from each other in a predetermined direction, and the axis of the wire may extend in the predetermined direction.

  A plurality of the contact portions may be provided apart from each other in a predetermined direction, and the axis of the wire may extend in a direction intersecting the predetermined direction.

  The wire may have a round cross section.

  The separate member may be attached to at least one of the film and the elastic body.

  In the connector according to one aspect of the present invention, since another member having rigidity higher than that of the elastic body is provided between the film and the elastic body, the contact portion is pressed against the connection object by the elastic body. Contact pressure can be realized.

It is a perspective view which shows the use condition of the connector which concerns on Example 1 of this invention. It is a disassembled perspective view which shows the connector of FIG. 1 with a connection target object. It is principal part sectional drawing of the connector of FIG. It is an expansion perspective view of an example of the base member contained in the connector of FIG. FIG. 5 is an enlarged perspective view of only a part of the base member of FIG. 4. It is principal part sectional drawing of the connector which concerns on Example 2 of this invention. FIG. 6B is an enlarged perspective view of only a part of the base member included in the connector of FIG. 6A. It is principal part sectional drawing of the connector which concerns on Example 3 of this invention. FIG. 7B is an enlarged perspective view of only a part of a base member included in the connector of FIG. 7A. It is a perspective view of only a part of the modification of the base member of FIG. 7B. It is principal part sectional drawing of the connector which concerns on Example 4 of this invention. FIG. 9B is an enlarged perspective view of only a part of the base member included in the connector of FIG. 9A. FIG. 9B is a perspective view of only a part of a modification of the base member of FIG. 9B. FIG. 6 is a cross-sectional view of a main part of a connector according to Reference Example 1 . FIG. 11B is an enlarged perspective view of only a part of the base member included in the connector of FIG. 11A. 10 is an enlarged perspective view of only a part of a base member included in a connector according to Reference Example 2. FIG. It is principal part sectional drawing of the connector which concerns on the reference example 3. FIG. It is sectional drawing which shows various modification (a)-(e), respectively. It is each sectional drawing which shows other various modifications (a)-(d).

  Hereinafter, embodiments of the present invention will be described in detail.

  A connector according to a first embodiment of the present invention will be described with reference to FIGS.

  1 and 2, the connector according to the first embodiment includes a connector member 1 extending in a predetermined horizontal direction, that is, a first direction A1. The connector member 1 is interposed between the first connection object 2 and the second connection object 3 and electrically connects them to each other. The connector member 1 will be described in detail later.

  The connector according to the first embodiment further includes a pressing member 4 that is movable in the vertical direction, ie, the second direction A2, for pressing the first connection object 2 toward the connector member 1, and the second connection. A base plate 5 for receiving the object 3 and a guide member 6 for guiding the pressure member 4 are included.

  Two guide pins 7 and 8 having different diameters are erected on the upper surface of the base plate 5. The guide pins 7 and 8 are inserted into two guide holes having different diameters formed in the second connection object 3, the connector member 1, and the guide member 6, and these components are moved in the second direction A2. Guide you as possible. By varying the diameters of the guide pins 7 and 8 and the guide holes, the orientations of the connection object 3, the connector member 1, and the guide member 6 with respect to the base plate 5 are uniquely determined.

  The guide member 6 includes a guide groove 11 that receives the pressure member 4 and guides it so as to be movable, and a groove or notch 12 that is connected to the guide groove 11 to receive the tip of the first connection object 2. doing.

  A large number of contact portions 13 are provided on the lower surface of the distal end portion of the first connection object 2 in the third direction A3 orthogonal to the first and second directions A1 and A2 in FIG. These contact portions 13 are arranged at a predetermined pitch in two rows of staggered legs extending in the first direction A1. For this reason, the first direction A1 may be referred to as a pitch direction. The connection object 2 in FIG. 2 shows the contact portion 13 at the tip, and is drawn opposite to the actual mounting direction. Correctly, the contact portion 13 does not exist at a place where the pressure member 4 comes into contact.

  A large number of contact portions 14 are provided on the upper surface of the distal end portion of the second connection object 3 in the third direction A3. These contact portions 14 are also arranged at a predetermined pitch in two rows of staggered legs extending in the pitch direction, that is, the first direction A1.

  A large number of contact portions 15 made of a conductor portion are provided at the distal end portion of the connector member 1 in the third direction A3. These contact parts 15 are arranged at a predetermined pitch corresponding to the contact parts 13 of the first connection object 2 and the contact parts 14 of the second connection object 3.

  In particular, the connector member 1 will be described with reference to FIGS.

  The connector member 1 includes a film-like base material 16 that extends in the pitch direction, that is, the first direction A1, an elastic body 17 that is fixed to the upper surface and the lower surface of the base material 16, and that is long in the first direction A1, and FIG. 1 includes a flexible film 18 which is a sheet-like member in which one side of the base material 16 is surrounded with the elastic body 17.

  Each elastic body 17 is made of silicon rubber, and can be compressed and deformed with elasticity. On the surface of each elastic body 17 in the second direction A2, a large number of convex portions 17a are arranged at a predetermined pitch in two rows of staggered legs extending in the first direction A1.

  The flexible film 18 is made of a plastic film having a thickness of several microns, and both end portions thereof are bonded to the upper and lower surfaces of the substrate 16 by an adhesive member 19. The contact portion 15 described above is disposed on one surface of the flexible film 18, that is, the outward surface so as to correspond to the convex portion 17 a of each elastic body 17 on a one-to-one basis. That is, the contact portions 15 are arranged at a predetermined pitch in two rows of staggered legs extending in the first direction A1 in each of the upper region and the lower region of the outward surface of the flexible film 18. Although not shown in the drawing, the contact portion 15 disposed on each of the upper region and the lower region of the outward surface of the flexible film 18 on the opposite surface, that is, the inward surface of the flexible film 18. Is connected to the contact portion 15 through a through hole. Also, the inwardly facing wiring and through holes are covered with an insulating member.

  On the other hand, between the opposite surface of the flexible film 18, that is, the inward surface, and each elastic body 17, two wire rods 21 made of thin fine wires with a round cross section having higher rigidity than the elastic body 17 are provided as separate members. It has been. These wire rods 21 extend in the first direction A1 in a state of being bridged one by one on each row of the protrusions 17a. Thus, the wires 21 correspond to the rows of the contact portions 15 on a one-to-one basis, extend in parallel with each other, and are substantially in line contact with the flexible film 18. Note that the wire 21 may be made of metal or plastic.

  In order to connect the first connection object 2 to the second connection object 3 using the connector of Example 1, the first connection object 2 and the first connection object 2 above and below the connector member 1 as shown in FIG. The two connection objects 3 are respectively arranged, and the contact portions 13 and 15 and 14 and 15 are opposed to each other in the second direction A2. Next, the pressure member 4 is lowered to press the first connection object 2 and the second connection object 3 against the upper and lower surfaces of the flexible film 18 of the connector member 1. Then, the contact part 13 of the 1st connection target object 2 and the contact part 14 of the 2nd connection target object 3 contact the contact part 15 of the connector member 1, and a predetermined electrical connection is obtained.

  In this case, since the wire rod 21 having a round cross section whose rigidity is higher than that of the elastic body 17 is disposed between the flexible film 18 and each elastic body 17, the first and second connection objects 2, 3 are arranged. The contact pressure of the contact portion 15 with respect to the contact portions 13 and 14 can be increased. Therefore, high contact pressure can be realized regardless of the structure in which the contact portion 15 is pressed against the contact portions 13 and 14 of the first and second connection objects 2 and 3 by the elastic body 17, so that connection reliability is improved. . Further, the wire 21 provided as a separate member does not directly press the contact portions 13 and 14 of the first and second connection objects 2 and 3 but indirectly through the plastic flexible film 18. Therefore, the contact portions 13 and 14 are less likely to cause dents and scratches.

  A connector according to a second embodiment of the present invention will be described with reference to FIGS. 6A and 6B. Parts similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the connector of the second embodiment, six wire rods 21 each having a round cross-sectional thin wire having higher rigidity than the elastic body 17 are provided as separate members between the flexible film 18 and each elastic body 17. ing. A plurality of wire rods 21, specifically, three wire rods 21 extend in the first direction A <b> 1 on each row of the protrusions 17 a of the elastic body 17. Thus, each wire 21 is substantially in line contact with the flexible film 18.

  The same effect as the connector of Example 1 can be expected with the connector of Example 2.

  A connector according to a third embodiment of the present invention will be described with reference to FIGS. 7A and 7B. Parts similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  In the connector according to the third embodiment, a large number of wire rods 22 each having a round cross-section having a higher rigidity than the elastic body 17 are provided as separate members between the flexible film 18 and each elastic body 17. ing. Each of the wires 22 is cut short, arranged one by one on the convex portion 17a of the elastic body 17, and extends in the third direction A3. Thus, each wire 22 is substantially in line contact with the flexible film 18.

  In addition, although each wire 22 protrudes in part from each convex part 17a of the elastic body 17 in FIG. 7B, it is formed so that it may be settled in the range of each convex part 17a of the elastic body 17, as shown in FIG. Also good.

  The same effect as the connector of Example 1 can be expected by the connector of Example 3.

  A connector according to a fourth embodiment of the present invention will be described with reference to FIGS. 9A and 9B. Parts similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

  Also in the connector of the fourth embodiment, a large number of wires made of thin fine wires with a round cross-section having higher rigidity than the elastic body 17 are provided as separate members between the flexible film 18 and each elastic body 17. Yes. These wires are divided into a first type of wire 23 formed into a shallow U shape and a second type of wire 24 formed into a deep U shape, and are alternately arranged in the first direction A1. In either case, the upper and lower elastic bodies 17 are sandwiched between the end portions of the base material 16. Moreover, the first type wire rod 23 extends in the third direction A3 on the convex portions 17a arranged at positions close to the edge of the substrate 16, and the second type wire rod 24 is far from the edge of the substrate 16. It extends in the third direction A3 on the convex portions 17a arranged at the positions. In this way, each wire 23 and 24 is substantially in line contact with the flexible film 18.

  In addition, although the edge part of the 1st type wire 23 protrudes partially from each convex part 17a in FIG. 9B, as shown in FIG. 10, it may be formed so that it may be settled in the range of each convex part 17a. Good.

  The effect similar to the connector of Example 1 can also be expected with the connector of Example 4.

[Reference Example 1]
A connector according to Reference Example 1 will be described with reference to FIGS. 11A and 11B. Parts similar to those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the connector of Reference Example 1, a granular material 25 made of spherical particles having higher rigidity than the elastic body 17 is provided as a separate member between the flexible film 18 and each elastic body 17. The granular material 25 is arranged on the convex portion 17a of the elastic body 17 in a one-to-one correspondence. In this way, each granular material 25 is substantially in point contact with the flexible film 18. Note that the grain material 25 may be made of metal or plastic.

In order to connect the first connection object 2 to the second connection object 3 using the connector of Reference Example 1 , the first connection object 2 and the first connection object 2 above and below the connector member 1 as shown in FIG. 11A. Two connection objects 3 are arranged, and their contact portions are opposed to each other in the second direction A2. Next, the first connection object 2 and the second connection object 3 are pressed against the upper and lower surfaces of the flexible film 18 of the connector member 1. Then, the contact part 13 of the 1st connection target object 2 and the contact part 14 of the 2nd connection target object 3 contact the contact part of the connector member 1, and predetermined electrical connection is obtained.

  In this case, since the spherical granular material 25 having higher rigidity than the elastic body 17 is disposed between the flexible film 18 and each elastic body 17, the contact points of the first and second connection objects 2 and 3. The contact pressure with respect to the parts 13 and 14 can be increased. Therefore, a high contact pressure can be realized regardless of the structure in which the elastic body 17 obtains the pressure contact, so that the connection reliability is increased. Further, the granular material 25 provided as a separate member does not directly press the contact portions 13 and 14 of the first and second connection objects 2 and 3 but indirectly through the flexible film 18 made of plastic. Therefore, the contact portions 13 and 14 are less likely to cause dents and scratches.

[Reference Example 2]
A connector according to Reference Example 2 will be described with reference to FIG. Parts similar to those in the first or fifth embodiment are denoted by the same reference numerals, and description thereof is omitted.

In the connector of Reference Example 2, a plurality of granular materials 25 made of spherical particles having higher rigidity than the elastic body 17 are provided as separate members between the flexible film 18 and each elastic body 17. A plurality of granular materials 25 are arranged on the surface of each convex portion 17 a of the elastic body 17. In this way, each granular material 25 is substantially in point contact with the flexible film 18.

  In FIG. 12, the granular material 25 is arranged on the surface of the convex portion 17 a of the elastic body 17. However, as shown in FIG. 13, the granular material randomly mixed in the elastic body 17 is exposed on the surface of the elastic body 17. Or what protruded may be used as the grain material 25.

The effect of the connector of the reference example 2 can be expected to be the same as that of the connector of the reference example 1 .

[Modification]
In the above description, the connectors according to Examples 1 to 4 and Reference Examples 1 and 2 and modifications thereof have been described. However, as shown in FIGS. Various other modifications, such as holding, are possible.

  Furthermore, as shown to Fig.15 (a)-(d), it can implement also as a connector which arranges the 1st connection object 2 and the 2nd connection object 3 in parallel, and connects mutually.

  Further, in the above description, fine lines or spherical particles having a round cross section are used as separate members, but fine lines having various cross sectional shapes or particles having various appearance shapes can also be used.

In addition, about the part similar to Examples 1-4 and the reference examples 1 and 2 , the same referential mark is attached | subjected and description is abbreviate | omitted.

  The connector of the present invention can be used as an anisotropic conductive connector for electrically connecting an IC memory card connector, a contact for a liquid crystal panel, and an electronic device for surface mounting of an LSI.

DESCRIPTION OF SYMBOLS 1 Connector member 2 1st connection object 3 2nd connection object 4 Pressure member 5 Base plate 6 Guide member 7, 8 Guide pin 11 Guide groove 12 Groove | groove or notch 13 Contact part 14 of 1st connection object Contact portion 15 of second connection object 15 Contact portion of connector member 16 Base material 17 Elastic body 17a Protruding portion 18 Flexible film 19 Adhesive member 21, 22 Wire rod 23 First type wire rod 24 Second type wire rod 25 Grain material

Claims (5)

In a connector that has an elastic body, an insulating film disposed on the elastic body, and a contact portion disposed on one surface of the film, and connects between objects to be connected, an opposite surface of the film A separate member having higher rigidity than the elastic body is provided between the elastic body, and the separate member is composed of at least one wire provided at a position facing the contact portion . The connector according to claim 1 , wherein a plurality of the contact portions are provided apart from each other in a predetermined direction, and an axis of the wire extends in the predetermined direction. 2. The connector according to claim 1 , wherein a plurality of the contact portions are provided apart from each other in a predetermined direction, and an axis of the wire extends in a direction intersecting the predetermined direction. The connector according to claim 1, wherein the wire has a round cross section. The separate member may be attached to at least one of said film and the elastic body, the connector according to any one of claims 1 to 4.

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