JP4199205B2 - connector - Google Patents

Description

  The present invention relates to a connector, and more particularly to a connector for electrically connecting two connection objects by being sandwiched between two connection objects (for example, a printed wiring board).

  Conventionally, a connector composed of a molded body, a conductive thin wire, and a guide is known (see Patent Document 1 below).

  The molded body is substantially plate-shaped and is made of an elastic material.

  The conductive thin wires are arranged at equal intervals on the molded body along the longitudinal direction of the molded body. The thin conductive wire passes from the upper end surface of the molded body to the front and reaches the lower end surface.

  The guide is substantially plate-shaped and has a plurality of holding holes. When the molded body is press-fitted into the holding hole, the upper and lower ends of the molded body protrude from the holding hole.

When this connector is sandwiched between both connection objects, the conductive thin wire is deformed, and a contact force is generated between both ends of the conductive thin wire and the pads of both connection objects. Electrically connected.
JP 2003-197289 A (see paragraphs 0014-0015, FIG. 1)

  However, when the connector is compressed by the two objects to be connected and the formed body is deformed, a part of the conductive thin wire is bent at an acute angle accordingly. For example, when the expansion and contraction of the formed body is repeated, the conductive thin wire may be cut. It was. In particular, when a metal thin film is used as the conductive thin wire, the possibility of disconnection increases.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a connector in which a metal thin film is not easily cut even when used repeatedly.

In order to solve the above-described problem, the connector of the invention of claim 1 is a contact unit including an elastic body and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface through the front surface; A plate-like housing having a holding hole for receiving and holding the contact unit in a press-fitted state, wherein the both end face side portions of the elastic body protrude from both openings of the holding hole; Metal thin film deformation restriction means for restricting deformation of the metal thin film when a compressive force is applied to both end faces of the elastic body, respectively, on both end surface side portions of the elastic body protruding from the metal body , The means is formed on the back side portion of the both end face side portions of the elastic body protruding from both openings of the holding hole, and when the compressive force is applied to the both end faces of the elastic body, Wherein the genus thin film is a recess to avoid bending at an acute angle.

The connector of the invention of claim 2 is a contact unit having an elastic body and a plurality of metal thin films formed from at least one end face of the elastic body to the other end face through the front, and the contact unit in a press-fit state. A plate-shaped housing having a holding hole for receiving and holding, and a connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole, the elastic body protruding from the holding hole Each of the end face side portions is provided with metal thin film deformation restricting means for restricting deformation of the metal thin film when a compressive force is applied to both end faces of the elastic body, and the metal thin film deformation restricting means is provided on the holding hole. The metal thin film is bent at an acute angle when a compressive force is applied to both end surfaces of the elastic body. Characterized in that it is a through hole as in no.

The connector of the invention of claim 3 is a contact unit having an elastic body and a plurality of metal thin films formed from at least one end face of the elastic body to the other end face through the front, and the contact unit in a press-fit state. A plate-shaped housing having a holding hole for receiving and holding, and a connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole, compressive force is applied to both end surfaces of the elastic body. A metal thin film deformation restricting means for restricting deformation of the metal thin film when applied, the metal thin film deformation restricting means being formed between the metal thin films in front of the elastic body, and the front surface of the elastic body and the holding A first protrusion that prevents the metal thin film from being bent at an acute angle when a compressive force is applied to both end faces of the elastic body by forming a gap with the inner peripheral surface of the hole; The second protrusion having a flat surface in contact with the inner peripheral surface of the serial holding hole, characterized in that it is formed on a rear surface of the elastic body.

According to a fourth aspect of the present invention, there is provided a connector according to a fourth aspect of the present invention, comprising: a contact unit having an elastic body; and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface through the front surface; A plate-shaped housing having a holding hole for receiving and holding, and a connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole, compressive force is applied to both end surfaces of the elastic body. A metal thin film deformation restricting means for restricting deformation of the metal thin film when added, wherein the metal thin film deformation restricting means is formed at a portion of the elastic body in front of the metal thin film, Forming a gap between the holding hole and the inner peripheral surface of the holding hole to prevent the metal thin film from being bent at an acute angle when a compressive force is applied to both end faces of the elastic body. Be caused, the second projection having a flat surface in contact with the inner circumferential surface of the holding hole, characterized in that it is formed on a rear surface of the elastic body.

  As described above, according to the connector of the present invention, durability is improved because the metal thin film is not easily cut even after repeated use.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  1 is a perspective view of a connector according to a first embodiment of the present invention, FIG. 2 is a front view of the connector shown in FIG. 1, FIG. 3 is a plan view of the connector shown in FIG. 1, and FIG. 5 is a perspective view of the contact unit of the connector shown in FIG. 1, FIG. 6A is a side view of the contact unit shown in FIG. 5, and FIG. 7 is a perspective view of an elastic body of the contact unit shown in FIG. FIG. 8 is an exploded perspective view of the connector shown in FIG.

  As shown in FIGS. 1 to 4, the connector 1 includes a contact unit 3 and a frame (housing) 9. As shown in FIG. 2, the connector 1 is disposed between the first printed wiring board 21 and the second printed wiring board 22 and electrically connects the printed wiring boards 21 and 22 to each other.

  As shown in FIGS. 5 to 7, the contact unit 3 includes an elastic body 5 and a metal thin film 7.

  The elastic body 5 is made of an elastic material such as rubber. The elastic body 5 has a plurality of compression portions 51 and a plurality of connection portions 52. The compression part 51 has a substantially quadrangular prism shape, and has an upper end surface 51a, a front surface 51b, a lower end surface 51c, and a back surface 51d. The connecting part 52 connects the plurality of compressing parts 51.

Concave portions (metal thin film deformation restricting means) 53 are formed above and below the back surface 51 d of the compression portion 51. The recess 53 extends along the connecting direction of the compression unit 51.

  The metal thin film 7 is formed on the compression part 51 and extends from the upper end surface 51a to the lower end surface 51c via the front surface 51b. The material of the metal thin film 7 is copper, gold or the like, and is formed by sputtering, for example.

  As shown in FIGS. 1 to 4 and 8, the frame 9 has a plate shape and includes a plurality of rectangular holding holes 91. The length of the short side of the holding hole 91 is slightly shorter than the thickness of the contact unit 3. The material of the frame 9 is an insulating material such as synthetic resin.

  In order to assemble the contact unit 3 to the frame 9, the contact unit 3 may be pressed into the holding hole 91 from above the frame 9 as shown in FIG. 8. As described above, since the length of the short side of the holding hole 91 is slightly shorter than the thickness of the contact unit 3, the contact unit 3 is held in the holding hole 91. At this time, both end surface side portions of the compression portion 51 of the elastic body 5 protrude from both openings of the holding hole 91.

  FIG. 9 is an explanatory view showing a state before and after the deformation of the compression portion 51 of the elastic body 5 of the contact unit 3.

As shown in FIG. 9, when the connector 1 is disposed between the first printed wiring board 21 and the second printed wiring board 22 and the connector 1 is sandwiched, the compression portion of the elastic body 5 is indicated by a two-dot chain line. 51 is compressed. Since there is a recess 53 in the portion on the back surface 51d side of the compression portion 51, the portion on the back surface 51d side of the compression portion 51 is easily deformed, and the portion on the back surface 51d side of the compression portion 51 is compressed larger than the portion on the front surface 52b side. The Therefore, when the compression part 51 is compressed, the shape of the metal thin film 7 does not change greatly.

  According to the connector 1 of 1st Embodiment, even if the connector 1 is used repeatedly, since the metal thin film 7 is hard to fracture | rupture, durability improves.

  Although the elastic body 5 of the connector 1 according to the first embodiment includes a plurality of compression portions 51 and a plurality of connection portions 52, the elastic body 5 is not necessarily divided into the compression portions 51 and the connection portions 52. The elastic body may be, for example, a long plate or a column as long as it can be elastically deformed and press the metal thin film 7 against the connection object.

  Moreover, as a formation method of the metal thin film 7, there exist a printing method, a plating method, etc. other than sputtering, for example.

  FIG. 6B shows a modification of the first embodiment, and is a side view of the contact unit.

As a modification of the first embodiment, instead of the recess 53 as the metal thin film deformation restricting means, both end surface side portions of the compression unit 51 of the contact unit 3 ′ (projecting from both openings of the holding hole 91 of the elastic body 5). A through hole 53 ′ may be provided in the rear surface 51 d side portion of the portion. This modification has the same effect as the first embodiment.

  10 is a perspective view of a connector according to a second embodiment of the present invention, FIG. 11 is a plan view of the connector shown in FIG. 10, FIG. 12 is an enlarged view of portion A in FIG. 11, and FIG. 14 is a perspective view when the elastic body of the contact unit shown in FIG. 13 is viewed from the front side, and FIG. 15 is a perspective view when the elastic body of the contact unit shown in FIG. 13 is viewed from the back side. FIG. 16 and FIG. 16 are explanatory views showing the state before and after the deformation of the contact unit.

  Portions common to the connector 1 according to the first embodiment are denoted by the same reference numerals and description thereof is omitted. Only the main differences will be described below.

In the connector 201 according to the second embodiment, as shown in FIGS. 13 to 15, protrusions 254 ( first protrusions, metal thin film deformation restricting means) are respectively formed on the front surface 52 b and the back surface 52 d of the connecting portion 52 of the elastic body 205 of the contact unit 203. ) And protrusions ( second protrusions ) 255 are formed.

  In the connector 201 according to the second embodiment, as shown in FIGS. 10 to 12, the length of the short side of the rectangular holding hole 291 of the frame 209 is the thickness of the contact unit 203 (from the top of the protrusion 254 to the protrusion 255. Slightly shorter than the length to the top).

  When the contact unit 203 is press-fitted into the holding hole 291, the protrusion 254 creates a gap G between the elastic body 205 and the inner peripheral surface of the holding hole 291.

In the connector 1 according to the first embodiment, by forming the recess 53 in the compression part 51 of the elastic body 5, the deformation of the compression part 51 when the compression part 51 is compressed is restricted, and the metal thin film 7 is greatly deformed. In the connector 203 according to the second embodiment, as shown by the two-dot chain line in FIG. 16, when the compression unit 51 is compressed, the compression unit 51 fills up the entire gap G. Since the elastic body 5 is also deformed in the thickness direction, the shape of the metal thin film 7 does not change greatly.

  According to the connector 201 according to the second embodiment, the same effects as those of the connector 1 according to the first embodiment can be obtained.

  17 is a perspective view of a contact unit of a connector according to a third embodiment of the present invention, and FIG. 18 is a perspective view of an elastic body of the contact unit shown in FIG.

  Portions common to the connectors 1 and 201 according to the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. Only the main differences will be described below.

In the connector 201 according to the second embodiment, the projections 254 are formed on the front 52b of the connecting portion 52, in the connector according to the third embodiment, as shown in FIGS. 17 and 18, the protrusion 356 (the first protrusion , Metal thin film deformation restricting means) is formed on the front surface 51 b of the compression portion 51. Accordingly, the protrusion 356 is covered with the metal thin film 7.

  According to the connector 201 of 3rd Embodiment, the effect similar to the connector 201 which concerns on 2nd Embodiment is acquired.

  19 is a perspective view of a connector according to a fourth embodiment of the present invention, FIG. 20 is a plan view of the connector shown in FIG. 19, FIG. 21 is an enlarged view of portion B in FIG. 20, and FIG. 23 is a perspective view of the elastic body of the contact unit shown in FIG. 22, FIG. 24 is an exploded perspective view of the connector shown in FIG. 19, and FIG. 25 is a view of the compression part 51 of the elastic body 405 of the contact unit 403. It is explanatory drawing which shows the state before and after a deformation | transformation.

  Portions common to the connectors 1 and 201 according to the first and second embodiments are denoted by the same reference numerals and description thereof is omitted. Only the main differences will be described below.

  As shown in FIGS. 22 and 23, no protrusions are provided on the front surface and the back surface of the connecting portion 51 of the elastic body 405 of the contact unit 403.

  Instead of forming protrusions on the elastic body 405, protrusions 492 were formed on the inner peripheral surface of the holding hole 491 of the frame 409, as shown in FIGS. The protrusion 492 contacts the front surface 52 a of the connecting portion 52 of the elastic body 405. The protrusion 492 functions in the same manner as the protrusion 254 of the connector 201 according to the second embodiment. Further, there is nothing corresponding to the protrusion 255 of the connector 201 according to the second embodiment.

  In the connector 401 according to the fourth embodiment, the length from the top surface of the protrusion 492 to the inner peripheral surface of the holding hole 491 facing this top surface is slightly shorter than the thickness of the contact unit 403.

  As shown in FIG. 24, when the contact unit 405 is press-fitted into the holding hole 491 of the frame 409, the projection 492 causes the metal thin film 7 and the inner peripheral surface of the holding hole 491 to be formed as shown in FIGS. A gap G is generated between them.

In the connector 401 according to the fourth embodiment, as shown in FIG. 25, when the compression part 51 is compressed, the compression part 51 is also deformed in the thickness direction of the elastic body 405 so as to fill the entire gap G. Therefore, the shape of the metal thin film 7 does not change greatly.

  According to the connector 401 according to the fourth embodiment, the same effects as those of the connector 201 according to the second embodiment can be obtained.

  It should be noted that a reinforcing bar penetrating in the longitudinal direction may be embedded in the elastic bodies 5, 205, 305, 405 of the connectors of the above-described embodiments to increase the rigidity of the contact unit.

FIG. 1 is a perspective view of a connector according to a first embodiment of the present invention. FIG. 2 is a front view of the connector shown in FIG. FIG. 3 is a plan view of the connector shown in FIG. FIG. 4 is a side view of the connector shown in FIG. FIG. 5 is a perspective view of the contact unit of the connector shown in FIG. 6A is a side view of the contact unit shown in FIG. 5, and FIG. 6B is a side view of the contact unit showing a modification of the first embodiment. FIG. 7 is a perspective view of an elastic body of the contact unit shown in FIG. FIG. 8 is an exploded perspective view of the connector shown in FIG. FIG. 9 is an explanatory view showing the state before and after the deformation of the compression part of the elastic body of the contact unit. FIG. 10 is a perspective view of a connector according to the second embodiment of the present invention. FIG. 11 is a plan view of the connector shown in FIG. FIG. 12 is an enlarged view of a portion A in FIG. 13 is a perspective view of the contact unit of the connector shown in FIG. FIG. 14 is a perspective view when the elastic body of the contact unit shown in FIG. 13 is viewed from the front side. 15 is a perspective view when the elastic body of the contact unit shown in FIG. 13 is viewed from the back side. FIG. 16 is an explanatory view showing a state before and after the deformation of the contact unit. FIG. 17 is a perspective view of a contact unit of a connector according to a third embodiment of the present invention. 18 is a perspective view of an elastic body of the contact unit shown in FIG. FIG. 19 is a perspective view of a connector according to a fourth embodiment of the present invention. 20 is a plan view of the connector shown in FIG. FIG. 21 is an enlarged view of a portion B in FIG. 22 is a perspective view of the contact unit of the connector shown in FIG. FIG. 23 is a perspective view of an elastic body of the contact unit shown in FIG. 24 is an exploded perspective view of the connector shown in FIG. FIG. 25 is an explanatory view showing a state before and after the deformation of the compression part of the elastic body of the contact unit.

Explanation of symbols

1, 201, 301, 401 Connector 3, 203, 303, 403 Contact unit 5, 205, 305, 405 Elastic body 7 Metal thin film 9, 209, 409 Frame (housing)
51 compression part 51a upper end surface 51b front surface 51c lower end surface 51d back surface 52 connection part 53 hole (metal thin film deformation restricting means)
53 'through hole (metal thin film deformation regulating means)
91,291,491 Holding hole 254,356 Protrusion (metal thin film deformation restricting means)
G gap

Claims (4)

A contact unit having an elastic body and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface via the front surface;
A plate-shaped housing having a holding hole for receiving and holding the contact unit in a press-fit state;
In the connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole,
Metal thin film deformation restricting means for restricting deformation of the metal thin film when a compressive force is applied to both end surfaces of the elastic body to each of both end surface side portions of the elastic body protruding from the holding hole ,
The metal thin film deformation restricting means is formed on the back side portion of the both end face side portions of the elastic body protruding from both openings of the holding hole, and when the compressive force is applied to the both end faces of the elastic body, A connector characterized in that the metal thin film is a recess that prevents the metal thin film from being bent at an acute angle . A contact unit having an elastic body and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface via the front surface;
A plate-shaped housing having a holding hole for receiving and holding the contact unit in a press-fit state;
In the connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole,
Metal thin film deformation restricting means for restricting deformation of the metal thin film when a compressive force is applied to both end surfaces of the elastic body to each of both end surface side portions of the elastic body protruding from the holding hole,
The metal thin film deformation restricting means is formed on the back side portion of the both end face side portions of the elastic body protruding from both openings of the holding hole, and when the compressive force is applied to the both end faces of the elastic body, A connector characterized by being a through hole that prevents a metal thin film from bending at an acute angle. A contact unit having an elastic body and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface via the front surface;
A plate-shaped housing having a holding hole for receiving and holding the contact unit in a press-fit state;
In the connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole,
A metal thin film deformation regulating means for regulating deformation of the metal thin film when a compressive force is applied to both end faces of the elastic body;
The metal thin film deformation regulating means is formed between the metal thin films on the front surface of the elastic body, and a gap is formed between the front surface of the elastic body and the inner peripheral surface of the holding hole. A first protrusion that prevents the metal thin film from bending at an acute angle when a compressive force is applied to the surface;
A connector, wherein a second protrusion having a flat surface in contact with the inner peripheral surface of the holding hole is formed on the back surface of the elastic body. A contact unit having an elastic body and a plurality of metal thin films formed from at least one end surface of the elastic body to the other end surface via the front surface;
A plate-shaped housing having a holding hole for receiving and holding the contact unit in a press-fit state;
In the connector in which both end surface side portions of the elastic body protrude from both openings of the holding hole,
A metal thin film deformation regulating means for regulating deformation of the metal thin film when a compressive force is applied to both end faces of the elastic body;
The metal thin film deformation restricting means is formed on a portion of the front surface of the elastic body where the metal thin film is formed, and a gap is formed between the front surface of the elastic body and the inner peripheral surface of the holding hole. A first protrusion that prevents the metal thin film from being bent at an acute angle when a compressive force is applied to both end faces of the body;
A connector, wherein a second protrusion having a flat surface in contact with the inner peripheral surface of the holding hole is formed on the back surface of the elastic body.

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