JPH04253172A - Board connecting device - Google Patents

Abstract

PURPOSE:To easily cope with the change of the terminal number and pitch of a terminal section and contribute to the thinning of an electronic apparatus. CONSTITUTION:Multiple connector chips 10 are fitted to a rigid board 12 to match the terminal number and pitch of the terminal section 4a of a flexible board 4. The terminal section 4a of the flexible board 4 is inserted into the groove 10a of each connector chip 10, then the connector chip 10 is pressed to pinch the terminal section 4a. The flexible board 4 is connected to the rigid board 12 electrically and mechanically. This device can easily cope with the change of the terminal number and pitch of the terminal section 4a, and it can contribute to the thinning of an electronic apparatus as compared with the use of conventional connectors because no molding is required.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board connecting device for electrically connecting boards.

0002

[Prior Art] In FIG. 4, reference numeral 1 indicates a flexible substrate 4.
2 is a lead pin. This connector 1 is entirely surrounded by a mold in order to reinforce the contact portion between it and the flexible substrate 4.

0003

[Problem to be Solved by the Invention] By the way, in the connector 1 having the above-mentioned structure, since the whole is surrounded by a mold,
The number of connectable terminals and the pitch between each terminal are determined. Therefore, if the number of terminals and the pitch of the terminal portion of the flexible substrate 4 are changed, it becomes necessary to newly raise the connector 1, which becomes expensive. Furthermore, since the entire structure is surrounded by a mold, it is an obstacle to making electronic devices thinner.

[0004] Accordingly, the present invention makes it possible to easily deal with changes in the number of terminals and the pitch of the terminal portion, and to contribute to making electronic equipment thinner.

[0005]

[Means for Solving the Problems] The present invention provides a device for electrically connecting boards, in which a connector chip is arranged at each connection point between the boards, and the connector chip is used to electrically connect the boards. It is something that connects.

[0006]

[Operation] A connector chip is arranged at each connection point between the boards, and the connections between the boards are made. For example, rigid board 12
When connecting the flexible substrate 4 to the flexible substrate 4, the connection is made by providing the connector chips 10 on the rigid substrate 12 in accordance with the number and pitch of the terminals 4a of the flexible substrate 4. Therefore, even if there is a change in the number of terminals and the pitch of the terminal portion 4a of the flexible substrate 4, there is no need to raise a new connector, and this can be easily handled. Furthermore, the entire connector chip 10 is not molded, and it is possible to make the electronic device thinner.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. In the figure, 12 is a rigid board, and this rigid board 12 is provided with a plurality of lands 11 corresponding to the number and pitch of the terminals of the terminal portions 4a of the flexible board 4 to be connected. Then, a connector chip 10 having a substantially C-shaped longitudinal section with flat upper and lower portions is arranged and soldered to each of the plurality of lands 11 (11a is solder). These connector chips 10 are made of a conductive metal member. These connector chips 10 are placed on the land 1 by an automatic machine (robot), for example, like other chip parts (not shown).
1 and may be mounted by reflow soldering.

When connecting the flexible substrate 4 to the rigid substrate 12 on which the connector chips 10 are disposed in this way, the terminal portions 4a are inserted into the grooves 10a of the plurality of connector chips 10.
Insert the corresponding terminals of each (as shown in Figure 2),
The upper part of each connector chip 10 is pressed so that the terminal portion 4a is clamped (the pressing direction is shown by an arrow in FIG. 2). This establishes an electrical connection and also fixes the flexible substrate 4. Here, the pressing may be performed, for example, when attaching a rear cabinet (back cover) of an electronic device. Note that instead of pressing, solder may be poured between the grooves 10a of the connector chip 10, and each terminal of the terminal portion 4a of the flexible substrate 4 and the connector chip 10 may be soldered.

As described above, according to the present example, by providing the connector chips 10 on the rigid substrate 12 in accordance with the number and pitch of the terminals of the terminal portion 4a of the flexible substrate 4,
The rigid board 12 and the flexible board 4 are connected. Therefore, even if there is a change in the number of terminals and the pitch of the terminal portion 4a, there is no need to raise a new connector as in the conventional case, and the change can be easily handled.

Furthermore, since each connector chip 10 is not molded, the corresponding space is not required, and this can contribute to making electronic equipment thinner.

Furthermore, since the connector chip 10 can be automatically mounted on the rigid board 12 together with other chip components, productivity and quality can be improved. Coupled with the fact that there is no need to create a new connector or a mold, there is also the advantage of being able to manufacture it at a low cost.

Although both sides of the groove 10a of the connector chip 10 in the above embodiment are flat, as shown in FIG. 3, a claw 10b is provided on one side and a fitting portion 10c of the claw 10b is provided on the other side. This makes it possible to stabilize the electrical and mechanical connection when pressing and clamping.

[0013]

[Effects of the Invention] According to the present invention, a connector chip is arranged at each connection point between boards, and the connections between boards are made using this connector chip, so the number of terminals and the pitch of the terminals can be changed. Even if there is, there is no need to create a new connector, and it can be easily dealt with. Furthermore, the entire connector chip is not molded, and the thickness can be kept smaller than that of conventional connectors, contributing to thinning of electronic devices. Furthermore, since the connector chip can be automatically mounted, productivity and quality can be improved, and together with no need for new connectors or molds, there is an advantage that the connector can be manufactured at a lower cost than conventional connectors.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram showing an embodiment of the present invention.

FIG. 2 is a diagram showing a connection state of a board.

FIG. 3 is a configuration diagram showing another embodiment of the invention.

FIG. 4 is a diagram showing the configuration of a conventional example.

[Explanation of symbols]

4 Flexible board 10 Connector chip 11 Land 12 Rigid board

Claims (1)

[Claims] Claim 1: A device for electrically connecting substrates,
A board connecting device characterized in that a connector chip is arranged at each connection point between the boards, and the connector chips are used to electrically connect the boards.