JPH07201411A - Connector - Google Patents

Abstract

PURPOSE:To narrow a pitch between connector terminals to make possible the densification by using a flexible printed circuit to electrically connect plural socket contacts to a substrate. CONSTITUTION:A floating insulator 1 is supported by an elastic projecting part 4 and a groove part 8 on the side wall, and fitted in a socket housing main body 2 for connection. Plural grid-like window holes 3 are formed in the socket housing main body 2, and a socket contact 6 is pressed into each window hole 3, and a substrate 7 and plural socket contacts 6 are electrically connected to each other by a flexible printed circuit 5. With this structure, in which a feeder is not used, a space between printed circuit patterns on the flexible printed circuit can be narrowed, and a pitch between connector terminals can be narrowed to improve the density.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connector for transmitting signals between a package and a back wiring board (PKG-BWB), and in particular, it has a floating structure for connecting a plug connector and a socket connector accurately and reasonably. Regarding connectors. .

2. Description of the Related Art Conventionally, this type of connector has been used for the purpose of correcting and absorbing a slight error in manufacturing or mounting position of a plug contact and a socket contact, as disclosed in, for example, Japanese Utility Model Publication No. 63-40857. Has been. FIG. 5 is a sectional view illustrating a conventional connector having a floating structure. In FIG. 5, the socket housing body 2 is formed with a plurality of window holes 3 into which the contacts of the plug housing are inserted. The inner wall of the socket housing body 2 has four magnets 13a.
Are fixed respectively. Further, magnets 13B having the same shape and the same polarity are fixed to the outer periphery of the floating insulator 1 at positions facing the magnets 13a, respectively. Flexible socket contacts that are electrically connected to the plug contacts are press-fitted into the plurality of window holes 3, and signal lines 12 for transmitting electric signals to the substrate are connected to the socket contacts. (In the drawing, for simplification of the drawing, the power supply line is drawn from only the right-hand row of the plurality of window holes 3 into which the socket contacts are press-fitted).
Next, the floating state of the floating insulator 1 will be described. Since the plurality of magnets 13a and 13b fixed to the socket housing body 2 and the floating insulator 12 are provided at positions facing each other and have the same shape and the same polarity, a repulsive force is generated and the floating insulator 1 Are supported in a balanced manner with respect to the socket housing body 2 and are housed in the central portion. Therefore, there is a gap between the outer circumference of the floating insulator 1 and the inner wall of the socket housing body 2. With the above configuration, even if there is a slight misalignment between the position of the plug contact and the window hole 3, it can be displaced within the gap, and the plug connector and the socket connector can be connected without applying excessive force. can do.

However, in this conventional package connector having a floating structure, the electrical signal is transmitted to the substrate for each of the plurality of socket contacts press-fitted into the plurality of window holes. Since the signal lines are connected, there is a problem that the pitch between the connector terminals cannot be narrowed and the density cannot be increased. An object of the present invention is to eliminate the above-mentioned drawbacks, to provide a groove portion in a socket housing main body, and to form a convex portion having elasticity in a floating insulator to form a connector having a floating structure for engaging the groove portion and the convex portion. To provide.

In order to achieve the above-mentioned object, a connector according to the present invention comprises an insulative plug housing and a plurality of plug contacts arranged in a plurality of rows press-fitted into holes of the plug housing. And a floating connector in which a plurality of rows of window holes into which plug contacts are inserted at the time of fitting the connector are formed in a grid pattern and a plurality of convex portions having elasticity are formed, and a floating connector formed in the floating insulator. A socket housing body having a groove portion that engages with the convex portion;
The flexible printed circuit is connected to a plurality of socket contacts press-fitted into a plurality of window holes arranged in the floating insulator and electrically connected to the substrate.

The present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view taken along a connection surface of a socket connector for explaining an embodiment of the present invention with a substrate, and FIG. 3 is a sectional view taken along line YY of FIG. First, in FIG. 3, a groove portion 8 having a depth dimension B is formed in the socket housing body 2 mounted on the substrate 7. Further, the floating insulator 1 is formed with an elastic convex portion 4 having a width dimension A that engages with the groove portion 8. Next, a method of engaging the floating insulator 1 and the socket housing body 2 will be described with reference to FIG.
In FIG. 3, when the floating insulator 1 is pressure-bonded to the socket housing body 2 in the direction of the arrow, the elastic protrusion 4 is curved and engages with the groove 8. At this time, since the width dimension A is wider than the depth dimension B, there is a gap between the outer circumference of the floating insulator 1 and the inner wall of the socket housing body 2, and they are engaged with each other with a floating structure. The engagement having this floating structure is shown in FIG. 1, and there is a gap corresponding to the difference between the width dimension A and the depth dimension B. 1b is a cross-sectional view illustrating a connection structure between a socket contact and a flexible printed circuit, which are press-fitted into the plurality of window holes illustrated in FIG. 1a, and FIG. 2 is a cross-sectional view taken along the line XX of FIG. 1a. It is a figure and is another sectional view explaining connection of a socket contact and a flexible printed circuit. In these two drawings, one flexible printed circuit 5 is provided for each of a plurality of window holes 3 arranged in four vertical rows × four horizontal rows, that is, four flexible printed circuits 5 are provided for each of 16 window holes. Sixteen socket contacts 6 press-fitted into the window holes 3 are electrically connected to the substrate 7 by a flexible printed circuit. For this electrical connection, four printed circuit patterns are formed on one flexible printed circuit 5 so as to correspond to the respective socket contacts. Next, a method of connecting the plug connector and the socket connector will be described with reference to FIG. 2 and FIG. 4 showing a sectional view of the plug connector. The plug connector shown in FIG. 4 is composed of an insulating plug housing 9 and a plurality of plug contacts 10 which are press-fitted into holes of the plug housing 9 and arranged in a plurality of rows.
It is connected to the BWB. Regarding the connection method, first,
By guiding the socket housing body 2 to the tip portion of the plug housing 9 in which the chamfered portion is formed,
The plug housing 9 and the socket housing 2 are fitted together. Next, the plug contact 10 is inserted into the window hole 3, the window hole 3 serves as a guide, and the floating insulator 1 floats to a position where the socket contact 6 is accurately connected to the plug contact, whereby the plug connector and the socket connector are connected. It

As described above, in the connector according to the present invention, the flexible printed circuit is used to electrically connect a plurality of socket contact boards, so that the printed circuit patterns on the flexible printed circuit are narrowed. This has the effect of enabling high density by narrowing the pitch between the connector terminals.

[Brief description of drawings]

FIG. 1 is a sectional view of a connection surface of a socket connector with a substrate according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line XX of FIG. 1a.

FIG. 3 is a sectional view taken along the plane YY of FIG. 1a.

FIG. 4 is a sectional view of a plug connector.

FIG. 5 is a cross-sectional view illustrating a conventional package connector having a floating structure.

[Explanation of symbols]

 1 ・ ・ ・ Floating insulator 2 ・ ・ ・ Socket housing 3 ・ ・ ・ Window hole 4 ・ ・ ・ Convex portion 5 ・ ・ ・ Flexible printed circuit 6 ・ ・ ・ Socket contact 7 ・ ・ ・ Substrate 8 ・ ・ ・ Groove 9 ・ ・・ Plug housing 10 ・ ・ ・ Plug contact 11 ・ ・ ・ BWB 12 ・ ・ ・ Signal line 13a ・ ・ ・ Magnet 13b ・ ・ ・ Magnet

Claims (4)

[Claims] 1. A plug housing having an insulating property, and a plug connector including a plurality of plug contacts arranged in a plurality of rows and press-fitted into holes of the plug housing,
Floating insulators, in which a plurality of rows of window holes into which the plug contacts are press-fitted when the connector is fitted are formed in a grid pattern and a plurality of convex portions having elasticity are formed, and the convex portions formed on the floating insulator are engaged. And a flexible printed circuit connected to the plurality of socket contacts press-fitted into the plurality of window holes arranged in the floating insulator and electrically connected to the substrate. A connector characterized by being made. 2. The number of flexible printed circuits is
The number of window holes formed in a plurality of rows on the grid is N columns vertically and M columns horizontally.
2. The connector according to claim 1, wherein, in a row, the number is the same as the smaller number of N and M. 3. The connector according to claim 2, wherein the number of printed circuit patterns formed on the flexible printed circuit is the same as the larger one of N and M. 4. The connector according to claim 1, wherein the width dimension of the convex portion is wider than the depth dimension of the groove portion.