JPH0672189U - connector - Google Patents

Abstract

(57) [Summary] (Modified) [Objective] The present invention aims to provide a connector having a novel structure for face-down connection of two spaced circuit boards having connection terminals on the upper surface. It is a thing. [Structure] The connector 1 of the present invention comprises an upper horizontal portion 2a,
An insulating plate-shaped rubber molded body 3 including an inverted L-shaped upper flat horizontal portion 3a and an upright portion 3b along an upper horizontal portion 2a and an upright portion 2b of a conductive member 2 including an upright portion 2b and a lower horizontal portion 2c. And an insulating rod-like rubber form 4 is disposed below the upper horizontal part 2a with a gap therebetween, and an opening 6 is provided therein, and a conductive member is insulated on the lower horizontal part 2c. It is exposed on the lower portion 2c of the elastic plate-shaped rubber molded body 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector, and more particularly to a connector having a novel structure for connecting two spaced-apart circuit boards having connection terminals on the upper surface.

[0002]

[Prior art]

 Conventionally, two circuit boards, which are vertically separated so that the connection terminals face each other, are connected by a pressure-holding type elastomer connector. In recent years, a dot-shaped liquid crystal display using the XY matrix method has been adopted. In devices, especially plasma displays (hereinafter referred to as PDPs), the mounting terminals in which the connection terminals of the drive circuit board and the glass substrate of the device are oriented in the same direction from the viewpoint of higher density, lower cost, and smaller mounting. Since it has been put to practical use, as a method for connecting two spaced-apart circuit boards each having a connection terminal on the upper surface (face-down connection method), a method for efficiently performing this is required.

[0003]

[Problems to be solved by the device]

As for the connector used for this face-down connection, as shown in FIG. 2 (a), the conductive parts 13 are provided at regular intervals on the surface of the insulating member 12 having a U-shaped cross section except the lower surface. Using the connector 11 attached so as to surround the connector, the curved board 17 having the connecting terminal 16 on the upper portion is inserted into the recess 14 as shown in FIG. A method is known in which electrical connection is made by contacting the circuit board 10 having 18; however, this conductive path has a slight inclination, and therefore pitch deviation easily occurs between the connected electrodes. There is a disadvantage that.

Further, as shown in FIG. 3A, the connector has a horizontal portion 22a at a constant interval between a horizontal portion 33a and an upright portion 33b of an insulating plate-shaped rubber molded body 33 having an inverted L-shaped cross section. , A conductive portion 22 composed of an upright portion 22b is provided, and an insulating rod-shaped rubber molded body 24 is provided on the surface of the upright portion 22b at a distance from the horizontal portion 22a, and the horizontal portion 22a and the rod-shaped rubber molded body are provided. It is also known to use a connector 21 in which an opening 25 is formed on the upper surface of 24, which is a circuit board 26 having a connection terminal 27 on the opening 25 as shown in FIG. 3 (b). While inserting the connector 21 and placing the connector 21 on the circuit board 28 having the connection terminal 29 on the upper part, the two circuit boards 26 and 28 are connected face down. The load required for press contact is large, and if there is a warp on the substrate, contact reliability will be high. It has the drawback of being low.

[0005]

[Means for Solving the Problems]

 The present invention relates to a connector that solves the above disadvantages and drawbacks. It is provided with a conductive member including an upper surface horizontal portion, an upright portion, and a lower surface horizontal portion on an insulating member at regular intervals. By providing an inverted L-shaped insulating plate-shaped rubber molded body along the section, and arranging an insulating rod-shaped rubber molded body at a lower portion of the horizontal portion of the upper surface of the conductive member at a distance from this, the conductive member is formed. An opening is provided between the upper horizontal portion and the insulating rod-shaped rubber molded body, and the conductive portion is exposed on the insulating plate-shaped rubber molded body in the lower lower horizontal portion.

That is, the present inventor conducted various studies to develop a connector for face-down connection of two spaced circuit boards having connection terminals on the upper surface, and as a result, the conductive member was found to be This conductive part is a two-step bent structure consisting of an upper horizontal part, an upright part, and a lower horizontal part. This conductive part is provided on the insulating member at regular intervals, and an inverted L-shaped insulation is provided along the upper horizontal part and the upright part. In addition to providing a plate-shaped rubber molded body, an insulating rod-shaped rubber molded body is placed below the horizontal portion of the upper surface at a distance from the rubber molded body, and an opening is provided between them. It shall be exposed on the insulative plate-shaped rubber molding, and one circuit board with connection terminals on the upper surface shall be inserted into this opening, and the connection terminals on this circuit board shall contact the horizontal surface of the upper surface. Connection terminal on the top of the other one It was found that these two circuit boards can be face-down connected by contacting the connection terminals of the circuit board that they have, which makes face-down connection of PDPs used at high voltage and high current easy. The present invention was completed after confirming that down connection was possible. This will be described in more detail below.

[0007]

[Action]

 The present invention relates to a connector having a novel structure, and as described above, a conductive member including an upper horizontal portion, an upright portion, and a lower horizontal portion is provided on an insulating member at regular intervals. By providing an inverted L-shaped insulative plate-shaped rubber molded body along the part, and by disposing an insulative rod-shaped rubber molded body in the lower part of the upper surface horizontal portion with a space therebetween, the upper surface of the conductive member is formed. An opening is provided between the horizontal portion and the insulating rod-shaped rubber molded body, and a conductive member is exposed on the insulating plate-shaped rubber molded body in the lower horizontal portion. According to this, when one circuit board is inserted into this opening and placed on the other circuit board, the face-down connection of these two circuit boards can be easily performed. Gender is given.

The connector of the present invention described above is shown in FIGS. 1 (a) and 1 (b). FIG. 1 (a) is a perspective view of a connector of the present invention, and FIG. 1 (b) is a vertical cross-sectional view when two circuit boards are connected face down using this connector. As shown in FIG. 1, the connector 1 is composed of a conductive member 2, an insulating plate-shaped rubber molded body 3 and an insulating rod-shaped rubber molded body 4.

The conductive member 2 is formed of a known rubber material such as silicone rubber, nitrile rubber, neoprene rubber, etc., with a crosslinking agent, a curing agent, and if necessary, a filler, a plasticizer, a colorant, a stabilizer, a heat resistance improver. The uncured insulating rubber compound (such as uncured insulating rubber compound) is thinly divided into 0.1 to 0.2 mm thin pieces according to the usual method. Wire the thin wires at equal intervals and pressurize and heat them so that the metal thin wires are embedded 1/3 to 2/3 of their diameter, and bond the metal-plated wires and the insulating rubber sheet. It should just be a thing. The embedding depth of the thin metal-plated wire shall be appropriately selected from the range of 0 to 100% of its diameter as long as the continuity is not impaired. As shown in the figure, the conductive member 2 is formed by bending an upper horizontal portion 2a, an upright portion 2b, and a lower horizontal portion 2c in two steps. This conductive member 2 is provided on the insulating member 5 at regular intervals. It may be arranged individually.

In the connector 1 , however, the insulating plate-shaped rubber molded body 3 including the upper surface horizontal portion 3a, the upright portion 3b, and the lower surface horizontal portion 3c is provided along the upper surface horizontal portion 2a and the upright portion 2b of the conductive member 2. Although provided, the insulating plate-shaped rubber molded body 3 may be formed by separately molding the above-mentioned uncured insulating rubber compound in a mold. In addition, in this connector 1 , an insulating rod-shaped rubber molding 4 is provided below the upper horizontal portion 2a of the conductive member 2 at a distance, and the upper horizontal portion 2a and the insulating rod-shaped rubber molding 4 are provided. A space portion 6 is formed between them. The insulating rod-shaped rubber molding 4 may be molded in the mold from the above-mentioned uncured rubber compound as with the above-mentioned insulating plate-shaped rubber molded body. As the compound, it is preferable to use a silicone rubber that has a low compression set, environment resistance, and stain resistance.

The space 6 is continuously provided in the longitudinal direction of the connector 1. The space between the spaces 6 is such that one circuit board is inserted therein and an electrical connection is made therein. However, it is determined by the thickness of the circuit board that is interposed here, but it is often within the range of ± 0.1 to 0.2 mm with respect to the thickness of the board. Although the shape of this space 6 is also a parallelogram in FIG. 1, this is one in which the opening is made smaller than the depth to increase the holding force of the substrate, and an elastic protrusion is provided in the center of the opening. It may be one.

As shown in FIG. 1B, the connection structure of the circuit board using the connector 1 is such that one circuit board 7 having a connection terminal 8 on the upper portion thereof is inserted into the opening portion 6, When the connector 1 is connected to the horizontal portion 2a of the upper surface of the conductive member 2 and the connector 1 is placed on the circuit board 9 having the connecting terminal 10 on the upper surface of the other sheet, the connecting terminal 10 is electrically conductive. Since the lower surface horizontal portion 2c of the member 2 is contacted, the connection terminal 8 of the circuit board 7 and the connection terminal 10 of the circuit board 9 are connected by the conductive member 2 of the connector 1 in the shortest distance. Since this conductive member 2 uses a metal-plated thin wire, connection with low compression and stable low resistance is possible, and high current (300mA to 500mA) at high voltage (about 300V). Given the advantage of being able to Be done.

[0013]

【Example】

 Next, examples of the present invention will be given. Example An insulating silicone rubber compound, KE-971U (trade name, manufactured by Shin-Etsu Chemical Co., Ltd.) was dispensed to a thickness of 0.1 mm on a uncured silicone rubber sheet and a gold wire (diameter 40 μm). Au-Co alloy was plated to a thickness of 0.4 μm on the brass fine wire of No. 1) was arranged at intervals of 0.1 mm to form a conductive member 2, which was bent in two steps as shown in FIG. 1 (b). .

Next, an insulating plate-like rubber molded body obtained by molding the above-mentioned uncured insulating silicone rubber into a reverse L-shape in a mold along the upper surface horizontal portion 2a and the upright portion 2b of the conductive member 2. 3 is provided, and an insulating rod-shaped rubber molded body 4 obtained by molding the above-mentioned uncured insulating silicone rubber in a mold is provided below the horizontal upper surface 2a of the conductive member 2. The connector 1 was prepared by horizontally providing the opening 6 between the portion 2a and the rod-shaped rubber molded body 4 and having an opening interval substantially equal to the thickness of the circuit board 7 of the display device.

Next, when the circuit board 7 is fitted in the opening 6 and the connector 1 is placed on the connection terminal 9 of the other circuit board 10, the connection terminal of the circuit board 7 is placed. 8 and the connection terminal 9 of the circuit board are face-down connected by this connector 1 , and when a discharge limit voltage of 175 V is applied to this, this plasma display display body is very bright with no display unevenness and is very good. Since the display was shown, it was confirmed that according to this, it is possible to make a very good connection in a circuit board that requires a voltage or current or in a circuit where the resistance value at the time of connection is desired to be low.

[0016]

[Effect of device]

 The present invention relates to a connector, and as described above, a conductive member composed of an upper horizontal portion, an upright portion, and a lower horizontal portion is provided on an insulating member at regular intervals, and along the upper horizontal portion and the upright portion. By providing an inverted L-shaped insulating plate-shaped rubber molding, and arranging an insulating rod-shaped rubber molding at a lower portion of the horizontal portion of the upper surface of the conductive portion at a distance from the upper portion of the conductive member. This connector is characterized in that an opening is provided between the horizontal portion and the insulating rod-shaped rubber molded body, and the conductive member is exposed on the insulating plate-shaped rubber molded body in the lower horizontal portion. According to the method, it is possible to easily perform face-down connection of two spaced circuit boards each having a connection terminal on the upper surface. If this conductive part is made of metal-plated thin wires, stable even with low compression. The low resistance connection Also high voltage, advantages are given that even high current can respond.

[Brief description of drawings]

FIG. 1 (a) is a perspective view of a connector of the present invention, and FIG. 1 (b) is a vertical cross-sectional view of connection of a circuit board using this connector.

FIG. 2A is a perspective view of a known connector, and FIG. 2B is a perspective view of connection of a circuit board using this connector.

FIG. 3A is a perspective view of another known connector, and FIG.
FIG. 3 is a vertical cross-sectional view of a circuit board connection structure using this connector.

[Explanation of reference symbols] 1 , 11 , 21, ... Connector, 2, 13, 22 ... Conductive member, 2a, 3a, 22a, 33a ... Horizontal part of upper surface, 2b,
3b, 22b, 33b ... Upright portion, 2c, 3c ... Bottom horizontal portion,
3, 33 ... Insulating plate-shaped rubber molding, 4, 24 ...
Insulating rod-shaped rubber molded body, 5, 12 ... Insulating member, 6,
14, 25 ... Space, 7, 9, 15, 17, 2
6, 28 ... Circuit board, 8, 10, 16, 18, 27, 29 ... Connection terminals.

Claims (1)

[Scope of utility model registration request] 1. A conductive member comprising an upper surface horizontal portion, an upright portion, and a lower surface horizontal portion is provided on an insulating member at regular intervals, and an inverted L-shaped insulating plate rubber molding is provided along the upper surface horizontal portion and the upright portion. By providing a body and disposing an insulating rod-shaped rubber molding under the upper horizontal portion of the conductive member with a gap therebetween, the insulating horizontal rubber molding is provided between the upper horizontal portion of the conductive member and the insulating rod-shaped rubber molding. A connector, wherein an opening is provided, and a conductive member is exposed on an insulating plate-shaped rubber molded body in a horizontal portion of a lower surface.