JPH0584048U - Wiring board connection device - Google Patents

Abstract

(57) [Abstract] [Purpose] A pair of wiring boards facing each other can be easily electrically and mechanically connected and separated from each other, and the contact points are well connected even when the wiring boards are warped and wavy in the connected state. To be done. A wiring in which a connector 5 is interposed between a pair of wiring boards 1 and 2 at least one of which has flexibility, and the contacts 3 and 4 of the wiring boards 1 and 2 facing each other are electrically connected to each other. In the board connecting device, the elastic plate 10 is arranged on the upper surface of the flexible wiring board 2.
0 and the lower surface of the wiring board 1 are provided with reinforcing plates 1 respectively.
1, 12 are arranged, and the reinforcing plates 11 and 12 are fixed by screws 13.
Is tightened, the pair of wiring boards 1 and 2 is pressure-bonded to both surfaces of the connector 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a wiring board connecting device capable of electrically and mechanically connecting or separating a pair of printed wiring boards, and in particular, one wiring board is made of a flexible material. It is suitable to be applied when it has been.

[0002]

[Prior Art]

 A conventional connecting device of this type will be described with reference to FIG. 3. A wiring board 1 having rigidity and a wiring board 2 having flexibility are connected via a connector 5. As shown in the enlarged view of FIG. 3, the connector 5 has a large number of through holes 7 formed in a flexible resin film 6, and one conductive particle 8 is arranged in each of these through holes 7. An insulating resin layer 9 such as a flexible silicone resin is interposed between the conductive particles 8 and the through holes 7. The diameter of the conductive particles 8 is selected to be larger than the thickness of the resin film 6. When the wiring boards 1 and 2 are pressure-bonded to both surfaces of the connector 5 with the connector 5 interposed between the wiring boards 1 and 2, the contacts 3 and 4 of the wiring boards 1 and 2 become conductive inside the connector 5. It is electrically connected by the particles 8.

[0003]

[Problems to be solved by the device]

 In this case, when the resin body whose surface is metal-plated is used as the conductive particles 8, the resin body of the conductive particles 8 bends when the wiring boards 1 and 2 are pressure-bonded to the connector 5. There is a problem that a relatively large load must be applied in order to obtain stability of contact between the contact points 3 and 4 and the conductive particles 8 of the connector 5, and the pitch of the contact points 3 and 4 of the wiring boards 1 and 2 varies. When it becomes smaller, the diameter of the conductive particles 8 of the connector 5 must be made smaller, and there is a problem that it is not possible to sufficiently cope with warpage and undulation of the wiring boards 1 and 2. Further, it is difficult to press the wiring boards 1 and 2 against the connector 5 with a uniform pressure, and there is a problem that a good contact state cannot be obtained as a whole.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, the connector 5 formed by disposing one conductive particle 8 in each of the plurality of through holes 7 formed in the flexible resin film 6 faces each other. At least one of them is interposed between a pair of wiring boards 1 and 2 having flexibility, and these opposing contacts 3 and 4 are electrically connected to each other by the conductive particles 8 of the connector 5. In the connection device, an elastic plate 10 arranged on the back surface of the flexible wiring board 2, a pair of reinforcing plates 11 and 12 including the elastic plate 10 and sandwiching a pair of wiring boards 1 and 12, and It is composed of a pair of wiring boards 1 and 2 via reinforcing plates 11 and 12, and a crimping member 13 such as a screw for crimping to both surfaces of the connector 5.

[0005]

[Action]

 In this invention, an elastic plate 10 is arranged on the back surface of a flexible wiring board 2, and a pair of reinforcing plates 11 and 12 are used to press the wiring boards 1 and 2 onto both surfaces of the connector 5 via the elastic plate 10. Therefore, even if the wiring board 1 having rigidity is warped or undulated, an appropriate crimping force can be obtained in response to this.

[0006]

【Example】

 An example of a wiring board connecting device according to the present invention will be described with reference to FIG. In this figure, the same parts as those in FIG. 3 are designated by the same reference numerals and the description thereof is omitted. Therefore, in this example, the wiring board 1 has rigidity and the wiring board 2 has flexibility. In this invention, an elastic plate 10 such as rubber is arranged on the back surface (top surface in the figure) of the flexible wiring board 2, and the back surface (top surface in the figure) of this elastic plate 10 and the back surface (FIG. Then, the reinforcing plates 11 and 12 are respectively arranged on the lower surface, and the screw 13 is inserted into the through hole formed through the reinforcing plate 11-the elastic plate 10-the wiring board 2-the connector 5-the wiring board 1, and the tip thereof is The wiring boards 1 and 2 are screwed into the screw holes 14 formed in the reinforcing plate 12 and pressure-bonded to both surfaces of the connector 5.

In this case, as the conductive particles 8 of the connector 5, a resin body whose surface is plated with metal can be used, or a metal ball itself can be used. Further, as the reinforcing plates 11 and 12, rigid metal plates can be used. According to this structure, the elastic plate 10 is arranged on the back surface of the flexible wiring board 2, and the wiring boards 1 and 2 are pressure-bonded to both surfaces of the connector 5 via the elastic plate 10 by the pair of reinforcing plates 11 and 12. Therefore, even if the wiring board 1 having rigidity has a warp or a swell, the change in the crimping force due to this can be sufficiently absorbed, and an appropriate pressing force to the connector 5 can be obtained. Although the wiring board 1 is described as having rigidity in this example, the wiring board 1 may be flexible.

[0008]

[Effect of the device]

 According to the wiring board connecting device according to the present invention, even if the wiring board 1 having rigidity is warped or undulated, the wiring board 2 having flexibility is flexed by the elastic plate 10 in response to this. The change in the crimping force on the connector 5 due to the warp and undulation of the wiring board 1 can be absorbed, and an appropriate crimping force on the connector 5 can be obtained. Even if the size of the conductive particles 8 of the connector 5 varies, the same effect can be obtained.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of a wiring board connecting device according to the present invention.

FIG. 2 is a sectional view showing an example of a connector applicable to the present invention.

FIG. 3 is a cross-sectional view showing an example of a conventional wiring board connecting device.

Claims (1)

[Scope of utility model registration request] 1. A pair of connectors formed by arranging one conductive particle in each of a plurality of through holes formed in a flexible resin film and facing each other, and at least one of which has flexibility. A wiring board connecting device in which these opposing contacts are electrically connected to each other by the conductive particles of the connector, and are disposed on the back surface of the flexible wiring board. A plate, a pair of reinforcing plates including the elastic plate and sandwiching the pair of wiring boards, and a crimping member such as a screw for crimping the pair of wiring boards to both sides of the connector via the reinforcing plates. Wiring board connection device.