JP2000082514A - Connecting structure for electric wiring board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensue connecting reliability without complicating a structure and increasing a cost and to improve the mechanical strength of an insulating resin for a connector even if the connection terminal of a FPC is fitted in/out many times. SOLUTION: A main board 1 which has a plug portion 4 forming by arranging a plurality of the contact terminals 3 of preset pitch near the edge is electrically connected to a FPC 7 provided with a fixed socket portion 8. On the socket portion 8, a contact terminal with the same pitch as that of the contact terminal 3 of the main board 1 is arranged. Fitting grooves 5 are provided near both ends of the plug portion 4 of the main board 1 so that the edges 8a on both sides of the socket portion 8 can be put in contact with and supported by the plug portion 4 of the main board 1 when the socket portion 8 of the FPC 7 is mounted thereon.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure of an electric wiring board, and more particularly to a mounting structure of a camera using a printed wiring board.

[0002]

2. Description of the Related Art Conventionally, an electronic component board of a camera, which does not have much room for mounting space, is a flexible printed circuit (FPC) because of being thin and easy to bend.
edCircuit) is often used. However, due to the external shape of the electronic components or the mounting space of the camera body on which the electronic board is mounted, the FPC is often folded in a complicated manner, and the FPC is mounted by using the small space in the camera body as much as possible. . Therefore, not only the assemblability is poor, but also the reliability and the repairability are considerably sacrificed, for example, the pattern is broken due to excessive bending. Furthermore, with the recent miniaturization of cameras,
Higher-density mounting is required for electrical boards.

Therefore, there is disclosed an example in which the electrical board of the camera is divided into several parts, and each board is connected in the form of a connector to improve the assemblability. For example, Japanese Patent Laid-Open No. 6-3740 describes that a contact spring of a member having an engaging portion and a fitting portion and an FPC having a conductive pattern on a contact surface with the contact spring are described.

In Japanese Patent Application Laid-Open No. 10-51090, an insulating resin is raised near both ends in the width direction of a connection terminal of an FPC to be fitted with a pluggable connector, and the connection terminal electrode surface is formed in a guide groove. The technology to do this is described.

[0005]

However, the above-mentioned FPC described in Japanese Patent Application Laid-Open No. Hei 6-3740 not only has a complicated mechanism and is costly, but also has a difficulty in securing connection reliability. Met.

On the other hand, in the technique described in Japanese Patent Laid-Open No. 10-51090, an increase in manufacturing cost such as a yield is expected if the pattern pitch becomes fine. Also,
If the connection terminal of the FPC is inserted and removed many times, there is a risk that the insulating resin raised on the connector side has no mechanical strength.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a complicated mechanism, does not increase the cost, secures the reliability of the connection, and ensures the connector even if the connection terminal of the FPC is inserted and removed many times. It is an object of the present invention to provide a connection structure for an electric wiring board in which the mechanical strength of an insulating resin in a part is improved.

[0008]

That is, the present invention provides a first printed wiring board having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near an edge, and the first printed wiring board. Second to be electrically connected to the board
And a contact electrode having the same pitch as the electrode pattern of the first printed wiring board is fixedly provided on the second printed wiring board and the first printed wiring board. A connector member having a socket part for electrically connecting the first printed wiring board and the second printed wiring board by being inserted into and attached to the plug part of the first printed wiring board; and the plug part of the first printed wiring board. The connector is provided near both ends of the plug portion of the first printed wiring board so that when the connector member of the second printed wiring board is mounted, both sides of the connector member are abutted and supported. And supporting means provided.

Further, the present invention provides a first printed wiring board having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near an edge, and electrically connected to the first printed wiring board. A second printed wiring board to be made;
Being fixedly provided on the second printed wiring board,
Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged, and the first printed wiring board and the second printed wiring board are inserted and mounted in a plug portion of the first printed wiring board. A connector member having a socket portion for electrically connecting to the wiring board; and a connector when the connector member of the second printed wiring board is attached to the plug portion of the first printed wiring board. A groove formed in the first printed wiring board near both ends of the plug portion so that the member is substantially the same as the outer shape of the first printed wiring board, and formed so that the connector member enters therein. And characterized in that:

Further, the present invention provides a first printed wiring board having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged in the vicinity of an edge, and a first printed wiring board substantially perpendicular to the first printed wiring board. A second printed wiring board to be electrically connected to the first printed wiring board,
Being fixedly provided on the second printed wiring board,
Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged, and the first printed wiring board and the second printed wiring board are inserted and mounted in a plug portion of the first printed wiring board. A connector member having a socket portion for electrically connecting to the wiring board, wherein the socket portion of the connector member is fixed to be substantially perpendicular to the wiring surface of the second printed wiring board. It is characterized by the following.

In the connection structure for an electric wiring board according to the present invention, the first printed wiring board has a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near an edge portion. The second printed wiring board is electrically connected to the first printed wiring board. A connector member is fixedly provided on the second printed wiring board. The connector member has contact electrodes arranged at the same pitch as the electrode pattern of the first printed wiring board. The connector member is inserted into a plug portion of the first printed wiring board and mounted, so that the first printed wiring board is mounted. And a socket portion for electrically connecting the second printed wiring board to the second printed wiring board. Then, when the connector member of the second printed wiring board is mounted on the plug portion of the first printed wiring board, both sides of the connector member are abutted and supported.
Support means are provided near both ends of the plug portion of the first printed wiring board.

In the connection structure for an electric wiring board of the present invention, the first printed wiring board has a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near an edge. , A second printed wiring board is electrically connected to the first printed wiring board. A connector member is fixedly provided on the second printed wiring board. Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged on the connector member.
And a socket portion for electrically connecting the first printed wiring board and the second printed wiring board by inserting and mounting the plug portion of the printed wiring board. Then, when the connector member of the second printed wiring board is attached to the plug portion of the first printed wiring board, the connector member is substantially positioned with respect to the outer shape of the first printed wiring board. A groove is formed near the both ends of the plug portion of the first printed wiring board so that the connector member enters into the first printed wiring board.

Further, in the electric wiring board connection structure of the present invention, the first printed wiring board has a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near the edge. , A second printed wiring board is disposed substantially perpendicular to the first printed wiring board, and is electrically connected to the first printed wiring board. A connector member is fixedly provided on the second printed wiring board. In this connector member, contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged.
And a socket part for electrically connecting the first printed wiring board and the second printed wiring board by being inserted into and attached to the plug part of the printed wiring board. The socket portion of the connector member is fixed so as to be substantially perpendicular to the wiring surface of the second printed wiring board.

[0014]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a connection structure of an electric wiring board according to a first embodiment of the present invention.
(A) is a plan view, (b) is an enlarged plan view showing a state where the socket part of FIG. 1 (a) is fitted with the plug part, and (c) is a state where the socket part is fitted with the plug part. It is the perspective view which showed the example of.

In FIG. 1, a main board 1 constitutes a first printed wiring board. The main substrate 1 needs to have a thickness of at least a double-sided substrate, for example, 0.3 to 0.4 mm, and ideally, a multilayer flexible substrate (FP).
It is good to constitute by C).

Various electronic components, for example, an IC (FC) 2 by flip-chip mounting are mounted on the main board 1. A plug portion 4 having a plurality of connection terminals 3 for connecting to an FPC 7 as a second printed wiring board outside the main substrate 1 is formed at a predetermined position on the edge of the main substrate 1. I have. The connection terminals 3 are a plurality of conductive patterns having a predetermined pitch. And
At both ends of the plug part 4, fitting grooves (groove parts) 5 as support means are formed.

On the other hand, the FPC 7 constitutes a second printed wiring board, and a socket portion 8 constituting a connector member is attached to a distal end portion for connection with the main board 1. The contact terminals (not shown) provided in the socket portion 8 are arranged corresponding to the connection terminals 3 of the plug portion 4 and are arranged at the same pitch as the contact terminals 3. The main board 1 and the FPC 7 are electrically connected by inserting and mounting the socket section 8 into the plug section 4.

Although the contact terminals are usually provided on one of the upper and lower sides, the reliability is further improved by providing them on both. Then, the FPC 7 is provided on the main board 1.
Is connected, the socket 8 of the FPC 7 is inserted into the plug 4 of the main board 1. At this time, the socket 8
The socket portion 8 is inserted into the plug portion 4 such that both edge portions 8a of the contact portion abut on the guide portion 5a of the fitting groove 5.

When the socket section 8 is inserted into the plug section 4 of the main board 1, as shown in FIGS. 1B and 1C, the rear edge 8b of the socket section 8 and the main board 1 It is fitted at a position that does not protrude from the edge 1a. That is,
The depth of the fitting groove 5 is substantially the same as the length of the socket portion 8, and the rear edge 8 b is formed so as not to protrude from the edge 1 b of the main board 1.

As described above, while the edge 8a of the socket 8 is in contact with the guide 5a of the fitting groove 5, the socket 8
Is inserted into the plug portion 4, it is possible to secure the strength at the time of connecting the substrate. In addition, since the edge 8a of the socket 8 abuts on the guide 5, the socket 8 can be prevented from coming off the plug 4.

Incidentally, in the above-described first embodiment,
When the thickness of the main board 1 is not enough to cover the insertion opening of the socket section 8, the main board 1 may be backed on the back side.

FIG. 2 shows a configuration of a second embodiment of the present invention, and is a perspective view showing a main part of a camera to which a connection structure of an electric wiring board is applied. In FIG. 2, a first printed wiring board 11 is provided on a front surface of a camera body 10. A plurality of types of electronic components, for example, ICs 12 are mounted on the first printed wiring board 11.
Further, a plug portion 14 having a plurality of connection terminals 13 is formed above the first printed wiring board 11 in FIG. Fitting grooves 15 are formed at both ends of the plug portion 14.

On the other hand, in FIG. 2, on the upper surface of the camera body 10, a second printed wiring board 17 is provided so as to be connected to the first printed wiring board 11. At the end of the second printed wiring board 17, a socket 18 for connection with the plug 14 of the first printed wiring board 11 is attached.

In the above-described first embodiment, the main board 1 and the FPC 7 are connected by the plug 4 and the socket 8 on substantially the same plane. In the second embodiment, however, the first The printed wiring board 11 and the second printed wiring board 17 are fitted at substantially right angles by the connection between the plug portion 13 and the socket portion 18. That is, the socket part 1
The insertion port 8 for the plug portion 14 is formed downward in FIG.

As a procedure for assembling the camera, first, the first printed wiring board 11 is fixed to the camera body 10. Thereafter, the socket portion 18 of the second printed wiring board 17 is inserted into the plug portion 14 of the first printed wiring board 11 along the fitting groove, and is fixed at a predetermined position on the upper surface of the camera body 10. .

Thus, as shown in FIG. 3A or 3B, the first printed wiring board 11 and the second printed wiring board 17 are easily arranged on the camera body 10 at substantially right angles. Can be set up. In particular, in the case of the arrangement shown in FIG. 3B, the second and second printed wiring boards 11 and 17 do not project from the camera body 10, and positioning and fixing are easy and reliable.

Next, a third embodiment of the present invention will be described. FIG. 4 shows the configuration of the third embodiment of the present invention, and is a perspective view showing a main part of a camera to which a connection structure of an electric wiring board is applied.

In FIG. 4A, a first printed wiring board 21 is provided on the front surface of the camera body 10.
A plurality of types of electronic components, for example, ICs 22 are mounted on the first printed wiring board 21. The plurality of connection terminals 23a are provided at the end of the first printed wiring board 21.
, A plug portion 24b having a plurality of connection terminals 23b, and a plug portion 24c having a plurality of connection terminals 23c are formed, respectively. Fitting grooves 25a, 25b, 25c are formed at both ends of these plug portions 24a, 24b, 24c, respectively.

On the other hand, in FIG. 4A, an FPC 27a, which is a second printed wiring board, to which a socket portion 28a is attached so as to be connected to the plug portion 24a is provided. Display-related components such as an LCD 29 for display and a switch 30 are connected to the FPC 27a.

On the right side in FIG. 4A, an FPC 27b to which a socket 28b is attached so as to be connected to the plug 24b is provided. This FPC 27
A lens frame system, for example, a lens barrel 31 is connected to b. Similarly, an FPC 27c to which a socket 28c is attached so as to be connected to the plug 24c is provided below in FIG. A sensor system, for example, a sensor 32 such as a photo interrupter (PI) or a photo reflector (PR) is connected to the FPC 27c.

The FPCs 27a, 27b, 27c to which the display system, the lens frame system, and the sensor system are connected.
Is that the sockets 28a, 28b and 28c are the plug 2
By being inserted into and fixed to 4a, 24b and 24c, it is connected to the first printed wiring board 21.

Thus, the FPC on which various components are mounted
Can be easily connected to the first printed wiring board. In addition, as shown in FIG.
May be provided.

That is, in FIG.
5 is formed to be longer than the length of the socket portion 28 in the contact terminal direction to be fitted. The positioning member 3 protruding from the camera body 10 is formed at the deepest portion of the fitting groove 25.
5 is fitted.

Then, the positioning member 3 of the camera body 10
5 is fitted into the fitting groove 25 so that the first printed wiring board 2
1 is fixed to the camera body 10 and the sockets 28a, 28b, 28c are inserted in this state, so that the FPC
27a, 27b, 27c can be easily connected to the first printed wiring board 21.

According to the above-described embodiment, since the connector connecting portion does not protrude, a plurality of connecting portions can be provided. Further, if the electrode pattern of the connector connecting portion of the printed wiring board is used as a check land, it is not necessary to provide a dedicated check land, so that the mounting efficiency can be relatively improved.

Further, it is possible to remarkably improve the assemblability and the repairability, for example, by diagnosing a failure at the time of repair and easily replacing the defective part. According to the above embodiment of the present invention, the following configuration can be obtained.

(1) A first printed wiring board having a plurality of electrode patterns having a predetermined pitch arranged near an edge, and a first printed wiring board which is electrically connectable to the electrode pattern of the first printed wiring board. A second printed wiring board to which a connector member on which contact electrodes having the same pitch as the electrode pattern are arranged is mounted.

(2) A first printed wiring board having a plurality of electrode patterns having a predetermined pitch arranged in the vicinity of an edge, and a first printed wiring board which is electrically connectable to the electrode pattern of the first printed wiring board. A second printed wiring board to which a connector member having contact electrodes arranged at the same pitch as the electrode pattern is mounted, and the connector member of the second printed wiring board with respect to the electrode pattern of the first printed wiring board And a fitting groove provided near both ends of the electrode pattern of the first printed wiring board so that the first and second printed wiring boards are fitted and positioned.

(3) A first printed wiring board having a plurality of electrode patterns having a predetermined pitch arranged in the vicinity of an edge portion, and a first printed wiring board which is electrically connectable to the electrode pattern of the first printed wiring board. A second printed wiring board to which a connector member having contact electrodes arranged at the same pitch as the electrode pattern is mounted, wherein the first printed wiring board and the second printed wiring board are arranged substantially vertically A connection structure for an electric wiring board for a camera, wherein the connector member is arranged so as to be connected in a state of being connected.

(4) First plug having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged near the edge
A second printed wiring board to be electrically connected to the first printed wiring board;
Is fixed to the printed wiring board of
Contact electrodes having the same pitch as the electrode pattern of the printed wiring board are arranged, and inserted into a plug portion of the first printed wiring board and mounted, so that the first printed wiring board and the second printed wiring board are connected to each other. A connector member having a socket portion for electrically connecting the connector member, and the connector member enters when the connector member of the second printed wiring board is mounted on the plug portion of the first printed wiring board. And a groove formed near both ends of the plug portion of the first printed wiring board.

(5) In the connection structure for an electric wiring board for a camera according to the above (4), the groove also serves as a positioning guide for fixing the first printed wiring board to the camera body. A connection structure for an electric wiring board for a camera.

(6) In the connection structure for an electric wiring board for a camera as described in the above (5), a projection pin to be fitted in the groove is formed in the camera body. Connection structure of electric wiring board for camera.

(7) A first portion having a plug portion in which a plurality of conductive patterns having a predetermined pitch are formed along the edge of the substrate, and a groove formed on both sides of the plug portion so as to be recessed from the edge of the substrate. And a contact electrode having the same pitch as the electrode pattern of the first printed wiring board is arranged, and inserted into a plug portion of the first printed wiring board and attached to the first printed wiring board. A second printed wiring board to which a connector member having a socket portion electrically connected to the board is fixed, and wherein the plug portion of the first printed wiring board is connected to the second printed wiring board. A connection structure for an electric wiring board for a camera, wherein when the connector member is mounted, the connector member enters the groove.

[0044]

As described above, according to the present invention, the reliability of the connection is secured without increasing the cost and complexity of the mechanism, and even if the connection terminal of the FPC is inserted and removed many times, the connector portion can be removed. It is possible to provide a connection structure for electrical wiring boards with improved mechanical strength of the insulating resin, which improves assemblability and repairability, while at the same time supporting derivatives for each camera mechanism, changing models and changing system in design, etc. Can be performed very easily.

[Brief description of the drawings]

FIGS. 1A and 1B show a connection structure of an electric wiring board according to a first embodiment of the present invention, wherein FIG. 1A is a plan view, and FIG. FIG. 4C is an enlarged plan view showing a state in which the socket is fitted to the plug, and FIG.

FIG. 2 is a perspective view showing a configuration of a second embodiment of the present invention and showing a main part of a camera to which a connection structure of an electric wiring board is applied.

FIG. 3 is a view showing a fitted state between first and second printed wiring boards and a socket portion according to a second embodiment.

FIG. 4 is a perspective view showing a configuration of a third embodiment of the present invention and showing a main part of a camera to which a connection structure of an electric wiring board is applied.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main board, 2, 12 IC (FC), 3, 13 Connection terminal, 4, 14 Plug part, 5, 15 Fitting groove, 5a Guide part, 7 FPC, 8, 18 Socket part, 8a Edge part, 8b Rear Edge, 10 camera body, 11 first printed wiring board, 17 second printed wiring board.

Claims (3)

[Claims] 1. A first printed wiring board having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged in the vicinity of an edge, and to be electrically connected to the first printed wiring board. A second printed wiring board, and fixedly attached to the second printed wiring board,
Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged, and the first printed wiring board and the second printed wiring board are inserted and mounted in a plug portion of the first printed wiring board. A connector member having a socket portion for electrically connecting to the wiring board; and a connector when the connector member of the second printed wiring board is mounted on the plug portion of the first printed wiring board. As both sides of the member are abutted and supported,
And a support means provided near both ends of the plug portion of the first printed wiring board. 2. A first printed wiring board having a plug portion formed by arranging a plurality of conductive patterns having a predetermined pitch in the vicinity of an edge, and to be electrically connected to the first printed wiring board. A second printed wiring board, and fixedly attached to the second printed wiring board,
Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged, and the first printed wiring board and the second printed wiring board are inserted and mounted in a plug portion of the first printed wiring board. A connector member having a socket portion for electrically connecting to the wiring board; and a connector when the connector member of the second printed wiring board is mounted on the plug portion of the first printed wiring board. A groove formed in the first printed wiring board near both ends of the plug portion so that the member is substantially the same as the outer shape of the first printed wiring board, and formed so that the connector member enters therein. A connection structure for an electric wiring board, comprising: 3. A first printed wiring board having a plug portion in which a plurality of conductive patterns having a predetermined pitch are arranged in the vicinity of an edge, and a first printed wiring board is disposed substantially perpendicular to the first printed wiring board. ,
A second printed wiring board to be electrically connected to the first printed wiring board; and a second printed wiring board fixedly provided on the second printed wiring board.
Contact electrodes having the same pitch as the electrode pattern of the first printed wiring board are arranged, and the first printed wiring board and the second printed wiring board are inserted and mounted in a plug portion of the first printed wiring board. A connector member having a socket portion for electrically connecting to the wiring board, wherein the socket portion of the connector member is fixed so as to be substantially perpendicular to the wiring surface of the second printed wiring board. A connection structure for an electric wiring board.