JPS6116485A - Connector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a connector for interconnecting boards such as printed wiring boards, ceramic wiring boards, multi-wire wiring boards, and the like.

<Prior Art> As shown in FIGS. 1 and 2, a conventional connector 1 of this type has two metal spring plates 4 mounted on a connector housing 3 protruding from a printed wiring board 2. A contact portion 6 provided at the edge of another printed wiring board 5 is inserted between these to establish an electrical connection.

However, in this structure, as shown in FIG. 3, the insertion direction of the printed wiring board 5, which has the connector contact portion 6 continuously along one edge, into the connector is defined as one direction shown by the arrow in FIG. It will be done. Therefore, in the conventional connector l, as shown in FIG.
When the printed wiring board 10 having both grades is inserted between the two boards 2 and 2 in the direction of the arrow, no force is applied in the direction in which the board 4 expands, and the contact portion, the tab connector contact portion 6, slides. Unreasonable force is applied due to the movement, and there is a strong possibility that poor contact or damage may occur due to wear or deformation.

For this reason, as long as the conventional connector 1 is used, there is a drawback that the number of signals to be connected is limited by the length of one side of the board when interconnecting the printed board at equal pressure.

<Object of the Invention> The object of the present invention is to solve the above-mentioned drawbacks by using a conductive ball as the contact part of the connector, and to eliminate the restriction on the insertion direction when connecting the connector. It is said to provide a connector with a large number of input/output pins for a total cost.

<Structure of the Invention> For the purpose described above, the connector according to the present invention has a plurality of holes formed in a row in each of two insulators disposed facing each other, and at least one of the holes has a hole formed between the insulators. A conductive ball with a diameter larger than the diameter of the hole opening appearing on the surface side is inserted so that it can freely move in the hole, and a conductive spring body is arranged in the hole to bring the ball into contact with the hole opening side. It is configured with K so as to increase the force.

<Example> Next, embodiments of the present invention will be described with reference to the drawings.

5, 6, 7, and 8 are cross-sectional views showing the first embodiment of the present invention. FIG. 8 shows the state when the printed wiring board is pulled out.

This connector 20 consists of two printed wiring boards 21.2
2, and on one printed wiring board 21, dielectric insulators 23 and 24 are disposed oppositely in a protruding state. These insulators 23 and 24 each have a plurality of holes 2 along the longitudinal direction (perpendicular to the plane of the paper).
5.26 are consecutive.

Balls 27 made of conductive material are inserted into these holes 25,26. Insulator 2 located above
The 30 hole 25 is opened toward the other insulator 24, and the diameter R1 of the opening 25a is equal to the diameter R2 of the ball 27.
It is smaller than. Therefore, the ball 27 is
It only slightly protrudes outward from 5a and cannot come out of the hole 25, but can move freely within the hole 25. On the other hand, the hole 26 in the insulator 23 located below has a depth and opening diameter such that the inserted ball 27 projects slightly outward, and the ball 27 can freely rotate within the hole 26.

The printed wiring board 21 includes a conductive metal plate 2.
8 is planted. This plate 28 is sandwiched between the upper insulator 23 and the cover 29 thereon, and its tip is inserted into the hole 25.
The ball 27 in the hole 25 is caused to protrude inward through the opening 25a.
It is biased towards the side. Note that a pin or the like may be used instead of the plate 28. Now, this connector 20 connects printed wiring boards 21 and 22 as shown in the figure, and the signal transmission path passes through a conductive ball 27 that is in contact with a contact portion 30 on the printed wiring board 22. , a metal plate 2 that holds down the ball 27 and is in electrical contact with it.
8, this board 28 is connected to the printed wiring board 21, and the signal is transmitted. At this time, the lower ball 27 is used for supporting the printed circuit board 22.

That is, as shown in the figure, a printed wiring board 22 and a connector 20
Since all contact is made with the balls 27, the printed wiring board 22 can be moved in any direction.
Insertion and removal can be performed freely and the contact portion 30 will not be damaged.

Although FIGS. 7 and 8 show the state in which the printed wiring board 22 is not inserted, the conductive ball 27 is pressed against the opening 25H of the hole 25 due to the elasticity of the plate 28.
The ball 27 remains within the upper insulator 23.

A second embodiment of the present invention is shown in FIGS. 9 and 10. This embodiment is similar to the upper insulator 2 in the first embodiment.
3. The hole 25 and opening 25a, the ball 27. metal plate 2
8. A bracket <-29 is used in place of the lower insulator 24.

That is, the weight of the printed wiring board 22 applies a load only downward, and the balance of contact between the top and bottom of the connector 20 is lost. The contact condition is maintained uniformly in all parts. The other configurations and states of insertion, removal, etc. are the same as in the first embodiment, so repeated description will be omitted.

By using these first and second embodiments, the implementation as shown in FIG. 4 can be easily realized.

<Effects of the Invention> As explained above, in the connector according to the present invention, by configuring the contact portion with a conductive ball housed in a hole, the connector can be installed in many places, and as a result, the connector can be installed in a number of places. This has the effect of increasing the number of input/output pins.

[Brief explanation of the drawing]

1 and 2 show the prior art, FIG. 1 is a sectional view, FIG. 2 is a partially sectional perspective view, and FIGS. 3 and 4 show a method of interconnecting printed wiring boards. Figure 3 shows a connector connection on one side of the printed wiring board, Figure 4 shows a connector connection on two sides of the printed wiring board, and Figure 5 shows a connector connection on two sides of the printed wiring board.
8 to 8 are sectional views showing the first embodiment of the present invention, FIGS. 5 and 6 show the printed wiring board inserted state, and FIGS. 7 and 8 show the uninserted state, Furthermore, Figure 6 shows the 5th
Figure 8 is a view of Figure 7 rotated 90 degrees horizontally. 9 and 10 are cross-sectional views showing a second embodiment of the present invention. FIG. 9 is a view when the printed wiring board is inserted, and FIG. 10 is a view when it is not inserted.

Claims (1)

[Claims] A plurality of holes are formed in each of two insulators arranged facing each other, and a conductive ball having a diameter larger than the diameter of the hole opening appearing on the opposing surface between the insulators is placed in at least one of the holes. A connector comprising a conductive spring body which is freely movable in an inserted hole and which biases the ball toward the opening of the hole.