JP2008010163A - Pressing fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pressing fixture 10 for pressing a connector to a counterpart side, the connector being capable of reducing a height between substrates, capable of narrowing the pitch, and also capable of obtaining stable connection even if it is connected one or more times. <P>SOLUTION: This pressing fixture is equipped with a plurality of pressing parts 16 pressed against an object to be connected on a base material 12 integrally or separately, an elastic member 14 held on the side opposite to the portion where the pressing parts 16 of the base material 12 are provided, and at least one or more pressing members 15 to press the base material 12 or the object to be connected to the side of the object to be connected or to the base material side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a jig that is used in an electronic / electrical device and presses a connector that connects between a board and a board or between a board and a flexible printed circuit board (hereinafter referred to as “FPC”) to the counterpart side. Further, the present invention relates to a structure that enhances narrow pitch and high-density mounting.

In order to connect between a board and a board used for electrical / electronic devices, etc., or between a board and an FPC, two connectors (so-called board-to-board connectors) mounted on each board are fitted to each other. In this way, the boards are connected.
However, in recent years, there has been a strong demand for lowering the height between substrates.

In order to connect between a board | substrate and a board | substrate and between FPC, a connector is used in many cases.
Japanese Patent Application Laid-Open No. 10-32062 proposed by the present applicant, in which the substrates are connected using two connectors and the FPC is used as a contact, is disclosed in Patent Document 1.
As Patent Documents 2 to 4, Japanese Patent Application Laid-Open No. 2002-175659 (Patent Document 2), Japanese Patent Application Laid-Open No. 2004-241304 (Patent Document 3), and Japanese Patent Application Laid-Open No. 2005-302705 in which a portion that comes into contact with a counterpart is spiral. (Patent Document 4).
According to the summary of Japanese Patent Laid-Open No. 10-32062, it is possible to provide an electrical connector 10 having a structure in which a connector installed on each board can be fitted regardless of a positional shift (about 0.5 mm) generated between the boards. For the purpose, a means for holding and fixing the contact 14 to the insulator 12 is provided, and the contact 14 has flexibility, and the contact 14 used for the connector includes an insulating layer A18 and an insulating layer B20. There is disclosed a structure in which two contact members 16 having a conductor 19 sandwiched therebetween are bonded together. According to the summary of Japanese Patent Application Laid-Open No. 2002-175859, it is possible to cope with a small semiconductor device, a package, an ultra-small bare chip, and a wafer-shaped one. Spiral contactors, semiconductor inspection devices (test sockets, test boards, probe cards) and electronic components (mounting sockets, mounting) that can be formed and accommodate high-density spherical connection terminals, and can realize low-cost and high-reliability inspections Connector for electrical connection with a semiconductor device or electronic component having a spherical connection terminal, wherein the contactor comes into contact with the spherical connection terminal in a plan view and has a spiral shape. The spiral contact 2 having a spherical shape is contacted with the spherical connection terminal on the insulating substrate. Deformably provided corresponding to the shape of the connection terminals, the semiconductor device or structure of a spiral contactor 1, characterized in that a structure for electrically connecting the electronic component is disclosed. According to the summary of Japanese Patent Application Laid-Open No. 2004-241304, it is possible to reduce the total number of ground terminals and reduce the size, and to provide an electronic connector having good transmission characteristics up to a high frequency band. Since a spiral contact 7 is provided as a system terminal and a ground terminal 8 is provided around the spiral contact 7 so that one signal system terminal can be electromagnetically shielded by one ground system terminal 8, transmission characteristics up to a high frequency band can be obtained. In addition to providing an excellent electronic connector, the number of ground terminals can be reduced as compared with the prior art, and thus a connector having a structure that can reduce the size of the connector is disclosed. According to the summary of Japanese Patent Laid-Open No. 2005-302705, the board 3 has a first surface for the purpose of providing a connector that can be reduced in size by reducing the mounting area of the connector and that has good high frequency characteristics. A plurality of spiral contacts 20 are formed on a certain upper surface 3a, and a plurality of connection terminals 40 are formed on a lower surface 3b, which is the second surface. The spiral contacts 20 and the connection terminals 40 are electrically connected to each other. Since a plurality of the spiral contacts 20 are arranged in a planar matrix on the upper surface 3a that is the first surface, a large number of the spiral contacts 20 can be provided on the substrate of the present invention. In particular, a connector having a structure in which the connector 1 can be miniaturized and the high frequency characteristics can be improved by the spiral contact 20 is disclosed.

In recent years, it is possible to cope with the reduction in height between substrates, which has been increasingly demanded, in Patent Documents 2 to 4 cited above.
However, in the structures as in Patent Documents 2 to 4, since the contact portion with the counterpart is formed in a spiral shape (spiral shape), the size of the contact portion becomes large, and thus the pitch cannot be reduced. .
Further, since the contact portion is spiral (spiral), the contact pressure is weak, a stable connection cannot be obtained, and it is not suitable for a plurality of connections.

  The present invention has been made in view of such a conventional problem, and can reduce the height between the substrates 60 and can also reduce the pitch. It is intended to provide a pressing jig 10 that presses a connector that can be obtained toward the counterpart.

The purpose is to form a plurality of pressing portions 16 for pressing against the connection object integrally or separately on the base material 12, and an elastic member held on the opposite side where the pressing portions 16 of the base material 12 are provided. 14 and at least one pressing member 15 that presses the base material 12 or the connection object toward the connection object side or the base material 12 side.
The term “at least one” as used above means that two pressing members 15 may be provided depending on where the pressing portion 16 is disposed.

The pressing jig 10 according to claim 2 is characterized in that a U-shaped slit 22 having a substantially U shape is provided around the pressing portion 16.
Further, in the pressing jig 10 according to claim 3, a vector (direction amount) applied to the pressing portion 16 when the pressing jig 10 is pressed against the connection object is 0 at the center 30 of the pressing jig 10 ( 3. The pressing jig 10 according to claim 1, wherein the direction of the U-slit 22 is arranged so as to be zero.
Furthermore, the pressing member 10 according to claim 4 changes the shape of the elastic member 14 in order to make the pressing force of the base material 12 or the connection object toward the connection object or the base material 12 uniform. The pressing jig 10 according to claim 1, 2, or 3.

5. The pressing jig 10 according to claim 1, wherein the pressing portions 16 are alternately arranged in a staggered manner in the longitudinal pitch direction.
Moreover, the pressing member 10 according to claim 6 is the pressing jig 10 according to claim 1, 2, 3 or 4, wherein the plurality of pressing portions 16 are arranged in a lattice shape.
Furthermore, the press jig | tool 10 of Claim 7 arrange | positions the said some press part 16 in the predetermined position of the said base material 12 of the one part or several parts, The 1-6 characterized by the above-mentioned. The pressing jig 10 according to any one of the above items.
The part or a plurality of parts referred to here may be a part of the base material 12 or may be two or more parts, depending on the position of the contact point of the connection object. This means that the position where 12 is provided is arbitrarily designed.

As is clear from the above description, according to the pressing jig 10 of the present invention, the following excellent outstanding effects can be obtained.
(1) A plurality of pressing portions 16 for pressing against a connection object integrally or separately on the base material 12, and an elastic member 14 held on the opposite side where the pressing portions 16 of the base material 12 are provided. And at least one pressing member 15 that presses the base material 12 or the connection object toward the connection object side or the base material 12 side. In addition, the pitch can be narrowed, and a stable connection can be obtained even when repeated connections are made.
(2) Since the pressing jig 10 according to the second aspect is provided with the substantially U-shaped U-slit 22 around the pressing portion 16, it is stable even if the height of the contact portion varies. And get a connection.
(3) In the pressing jig 10 according to claim 3, the vector applied to the pressing portion 16 when the pressing jig 10 is pressed against the connection object is 0 (zero) at the center 30 of the pressing jig 10. Thus, since the direction of the U slit 22 is arranged, stable pressing is possible.
(4) The pressing jig 10 according to the fourth aspect is configured so that the pressing force of the base material 12 or the connection target to the connection target or the base material 12 is uniform. Since the pressure is changed, a stable contact pressure can be obtained.
(5) In the pressing jig 10 according to the fifth aspect, since the pressing portions 16 are alternately arranged in the longitudinal pitch direction in a zigzag manner, the pitch can be further narrowed and the density can be further increased. You can also get a stable connection.
(6) Since the pressing jig 10 according to the sixth aspect arranges the plurality of pressing portions 16 in a lattice shape, the pitch can be further narrower than that of the fourth aspect, and the density can be increased. A stable connection can also be obtained.
(7) In the pressing jig 10 according to the seventh aspect, since the plurality of pressing portions 16 are arranged at predetermined positions of the base material 12 of a part or a plurality of portions, the connection object is at a specific portion. A stable connection with can be obtained.

An embodiment of the connector of the present invention will be described with reference to FIGS. FIG. 1A is a perspective view of the pressing jig as viewed from the pressing direction, and FIG. 1B is a perspective view of the pressing jig as viewed from the direction opposite to the pressing portion. 2A is a partially enlarged view of the pressing portion, and FIG. 2B is a cross-sectional view taken along the center of the pressing portion. FIG. 3A is a plan view of the base material viewed from the direction of the pressing portion in a state where a plurality of pressing portions are arranged in one row, and FIG. 4A is a staggered pressing portion and 2 in the width direction. It is the top view of the preform | base_material seen from the press part direction of the state arrange | positioned in multiple rows by the length between two press parts with the same length. FIG. 5A is a plan view of the base material in a state where the pressing portions are alternately staggered in the longitudinal pitch direction and arranged in a plurality of rows, and FIG. 6A is a plan view of the two pressing portions in the width direction. It is a top view of the base material of the state which has arrange | positioned in a straight line and has arrange | positioned all the press parts in a grid | lattice form. FIG. 7A is a plan view of the FPC in a state where the three pressing portions are arranged on the same straight line in the width direction and all the pressing portions are arranged in a lattice shape. FIG. 8A is a plan view of the base material in a state in which the pressing portions are alternately staggered in the longitudinal pitch direction and arranged in a plurality of rows, and U slits between adjacent in the width direction are arranged facing each other. FIG. 9 is a cross-sectional view of a state in which the connector of the present invention connects two connection objects. FIG. 10 is a perspective view of the connector as seen from the surface direction in a state in which a plurality of pressing portions are provided on four sides of one base material having a substantially cross shape as another embodiment. FIG. 11 is a diagram for explaining the arrangement of the U-slit directions. 3B is a side view of the jig in a state where the pressing portion is arranged as shown in FIG. 3A to FIG. 8A.
The pressing jig 10 of the present invention mainly includes a base material 12, an elastic body 14, and a pressing member 15.

  First, the base material 12 will be described. The base material 12 has a plurality of pressing portions 16 that press at least the connection object. The shape of the pressing portion 16 is appropriately designed by optimizing according to the shape of the connection object. Here, the optimization refers to a hemispherical convex shape as in the present embodiment if the mating shape is flat, or the pressing portion 16 is flat or mountainous if the mating shape is a hemispherical convex shape. It means to make a convex shape. A U-shaped U-slit 22 is provided around the pressing portion 16 as shown in the figure. By providing the U-slit 22, the pressing portion 16 is elastically displaced when the pressing portion 16 comes into contact with the connection object, and variations in the height of the pressing portion 16 can be absorbed. In order to absorb in this way, the elastic member 14 is arrange | positioned on the opposite side to the side in which the said press part 16 was provided. The size of the elastic member 14 is substantially the same as that of the base material 12 where the pressing portion 16 is disposed, and the thickness takes into account the displacement of the pressing portion 16 and the low profile of the pressing jig 10. And design accordingly. In addition, the elastic member 14 has a shape changed to make the contact pressure of the base material 12 or the connection object to the connection object or the base material 12 side uniform. In this embodiment, the central portion is curved.

The pressing jig 10 of the present invention is provided between two connection objects (for example, between two substrates 60, between a substrate 60 and an FPC, between a substrate 60 and an FPC cable 70, and between an electronic device and the substrate 60. Etc.), a plurality of pressing portions 16 for pressing one of the connection objects on the base material 12 are formed and arranged at predetermined positions.
Here, the predetermined position means that the pressing portion 16 is provided at a position corresponding to the contact point of the connection object.
Hereinafter, the arrangement of the pressing portions 16 will be described with reference to the drawings.

  FIG. 3A shows a state where the pressing portions 16 are arranged in a plurality of rows. That is, the two pressing portions 16 are arranged in parallel in the width direction and in a plurality of rows and a constant pitch in the pitch direction. The interval between the adjacent pressing portions 16 is determined by the processing technique of the U-slit 22 and the size (height) of the pressing portion 16, but can be about 300 μm at the minimum.

  FIG. 4A shows a state in which the pressing portions 16 adjacent in the pitch direction are staggered, and the length between the two pressing portions 16 in the width direction is the same length and arranged in a plurality of rows. In this state (the pressing portions 16 adjacent in the pitch direction are arranged in a staggered manner), a plurality of rows are arranged. The interval between the pressing parts 16 adjacent in the pitch direction is determined by the processing technique of the U-slit 22 and the size (height) of the pressing part 16, but can be at least about 300 μm.

  FIG. 5A shows a state in which the pressing portions 16 are alternately staggered in a longitudinal pitch direction and arranged in a plurality of rows. In this state (two pressing portions 16 are arranged in a staggered manner), a plurality of rows are arranged.

  FIG. 6A shows a state in which the two pressing parts 16 are arranged on the same straight line in the width direction and the pressing parts 16 for one and the other are arranged in a grid pattern. That is, the two pressing portions 16 are arranged on the same straight line in the width direction. A plurality of rows are arranged in this state (the two pressing portions 16 are arranged on the same straight line in the width direction).

  FIG. 7A shows a state in which the three pressing portions 16 are arranged on the same straight line in the width direction and the pressing portions 16 for one and the other are arranged in a lattice shape. That is, the three pressing portions 16 are arranged on the same straight line in the width direction. A plurality of rows are arranged in this state (the three pressing portions 16 are arranged on the same straight line in the width direction).

  FIG. 8A shows a state in which the pressing portions are alternately staggered in the longitudinal pitch direction and arranged in a plurality of rows, and U slits 22 between one and the other in the width direction are arranged facing each other. That is, between the adjacent ones arranged in the one and the other in the width direction, the U slits 22 face each other so that the intervals between the width direction adjacents and the pitch direction adjacents are further narrower than the arrangements of FIGS. It is pitched. In the case of such an arrangement, it can be 200 μmm in the pitch direction and 350 μm in the width direction at the minimum.

  6 and 8, the two and three pressing portions 16 are arranged on the same straight line in the width direction, but needless to say, the same can be applied to four or more.

Next, the pressing member 15 will be described. The pressing member 15 presses the pressing jig 10 of the present invention against the connection object side, and any member (method) may be used as long as it is pressed. Considering the low profile of the pressing jig 10 and the simplicity of pressing. And design accordingly. For example, in this embodiment, a substantially U-shaped one as shown in FIG. 1 is pressed against the elastic member 16 (pressed in the direction of the connection object) and is pressed onto the substrate 60 by being hooked or screwed. That is, one pressing object (for example, FPC cable 70) is pressed by the pressing portion 16, and the contact of the FPC cable 70 is brought into contact with the land 62 of the other connecting object (for example, the substrate 60). Thus, conduction between the substrate 60 and the FPC cable 70 is achieved.
Moreover, as a pressing direction, the pressing jig 10 of the present invention may be pressed toward the connection target, or the connection target may be pressed toward the pressing jig 10 of the present invention.

  FIG. 9 is a cross-sectional view of a state in which the pressing jig 10 of the present invention connects two objects to be connected. As described above, the pressing jig 10 of the present invention performs connection between two connection objects simply by pressing one of the two connection objects. For example, in FIG. 8, one is the substrate 60 and the other is the FPC cable 70.

  Finally, the arrangement of the U slits 22 will be described. As the arrangement of the U slits 22, the vector (direction amount) applied to the pressing portion 16 when the pressing jig 10 is pressed against the connection object is 0 (zero) at the center 30 of the pressing jig 10. It is arranged to be. By arranging in this way, stable pressing is possible. Referring to FIG. 11, in the state of (A), the U slits 22 are arranged so as to face each other, and in the state of (B), the U slits 22 are arranged in a state of facing one side. The vector applied to the pressing portion 16 is applied in the direction opposite to the U slit 22 from the center 30 of the pressing portion 16. Therefore, in the state of FIG. 11A, the vector applied to the pressing portion 16 is opposed to the U-slit 22, so that the vectors cancel each other and the vector is 0 (zero) at the center 30 of the jig 10. . In the state of FIG. 11B, since the U slit 22 is provided in the same direction, the vectors applied to all the pressing portions 16 are added, and one vector is added at the center 30 of the jig 10. This is 8 times the vector applied to the pressing portion 16.

  As an application example of the present invention, it relates to a connector that is used in various electronic / electrical devices and connects between a substrate and between a substrate and an FPC. Concerning structure.

(A) It is a perspective view of the pressing jig of the state seen from the pressing direction. (B) It is a perspective view of the press jig of the state seen from the opposite direction to the press part. (A) It is the elements on larger scale of a press part. (B) It is sectional drawing sectioned in the center of a press part. (A) It is a top view of the preform | base_material seen from the press part direction of the state by which the press part was arranged in multiple rows by 1 row. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). (A) It is a top view of the preform | base_material seen from the press part direction of the state by which the press part was zigzag and the length between two press parts of the width direction was the same length, and was arranged in multiple rows. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). (A) It is a top view of the preform | base_material of the state which press part is alternately staggered in the longitudinal pitch direction, and has arranged in multiple rows. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). (A) It is a top view of the preform | base_material of the state which has arrange | positioned the press part for every one side and the other in a grid | lattice form while arrange | positioning two press parts on the same line in the width direction. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). (A) It is a top view of FPC of the state which has arrange | positioned three press parts on the same line of the width direction, and has arrange | positioned the press part for every one and the other in a grid | lattice form. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). (A) It is a top view of the preform | base_material of the state which arrange | positions the press part by zigzag alternately by the longitudinal pitch direction, and is arrange | positioned in multiple rows and arrange | positions the U slit between the width direction adjacent. (B) It is a side view of the jig | tool of the state arrange | positioned like (A). It is sectional drawing of the state which the press jig | tool of this invention connected between two connection objects. FIG. 6 is a perspective view of a connector as viewed from the surface direction in a state where a plurality of pressing portions are provided on four sides of a single base material having a substantially cross shape as another embodiment. It is drawing explaining the arrangement | sequence of the direction of a U slit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Pressing jig 12 Base material 14 Elastic member 15 Pressing member 16 Pressing part 22 U slit 30 Center 60 Substrate 62 Pad 70 FPC cable

Claims (7)

A plurality of pressing parts for pressing against the connection object integrally or separately on the base material, an elastic member held on the opposite side where the pressing part of the base material is provided, and the base material or the connection A pressing jig comprising: at least one pressing member that presses an object toward the connection object or the base material. The pressing jig according to claim 1, wherein a U-slit having a substantially U shape is provided around the pressing portion. The direction of the U-slit is arranged so that a vector applied to the pressing portion when the pressing jig is pressed against a connection object is 0 (zero) at the center of the pressing jig. Or the pressing jig of 2. The shape of the said elastic member is changed in order to make uniform the contact pressure to the said connection target object or the said base material side of the said base material or the said connection target object, The Claim 1, 2, or 3 characterized by the above-mentioned. Pressing jig. 5. The pressing jig according to claim 1, wherein the pressing portions are alternately arranged in a staggered manner in the longitudinal pitch direction. The pressing jig according to claim 1, wherein the plurality of pressing portions are arranged in a lattice shape.
Ingredients. The pressing jig according to any one of claims 1 to 6, wherein a plurality of the pressing portions are arranged at predetermined positions of a part or a plurality of the base materials.

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