JPH09190861A - Detachment prevention device for cable connector for printed circuit board - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To prevent detachment or contact failure due to a pulling external force or the like to a connector with a cable, and to print, in spite of adopting a small cable connector in which a lock mechanism is not attached to a connector housing. (EN) Provided is a device for preventing detachment of a cable connector, which can surely prevent damage to a board. SOLUTION: A cable 7 is provided as a connector 6 with a cable.
In addition to adopting a lateral connector of a type in which the connector is pulled out to the side, a restraining member 10 that abuts on the top surface of the connector 6 with a cable while being straddled over the printed circuit board 1 is tightened to the housing 2 with a screw 12. It is fixed, and a deformation preventing support piece 13 is provided in the gap between the printed circuit board 1 and the housing 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing detachment of an insertable / extractable cable connector with respect to a printed wiring board (referred to as a printed circuit board in this specification) provided in a housing of a communication device or other electric device. .

[0002]

2. Description of the Related Art As a conventional printed circuit board cable connector, a board-side connector C is fixed to a printed circuit board B mounted on a casing A of an electric device by soldering at its insertion pin portion, as shown in FIG. And cable D
The cable-equipped connector E on the side is attached to the board-side connector C, and as a measure for preventing detachment or contact failure of the cable-equipped connector E with respect to the board-side connector C, for example, as shown in FIG. While the swinging arm G having the hook claw F on its base is pivotally supported by the shaft H at both ends of the board-side connector C at its base, the hook claw F is engaged with the end edge of the connector E with a cable by a spring (not shown). A lock mechanism I is provided so as to facilitate the operation so that the connector E with cable can be stably maintained in the coupled state by the swing arm G with the hook C.

[0003]

In the former case of the above-mentioned conventional technique, that is, in the structure of FIG. 4 in which the lock mechanism is not provided, the printed board B in the vicinity of the board-side connector C is stressed by the tensile external force applied to the cable D. In some cases, the printed circuit board B and the circuit are damaged, and in the latter case, that is, in the structure of FIG. 5 provided with the lock mechanism I, the printed circuit board B in the vicinity of the circuit board side connector C due to the pulling external force applied to the cable D as in the former case. Not only may the printed circuit board B and the circuit be damaged due to stress on the printed circuit board, but the lock mechanism I is added to both ends of the housing of the board side connector C. There is a disadvantage that B becomes larger.

Therefore, an object of the present invention is to prevent a detachment or a contact failure due to a pulling external force or the like with respect to a connector with a cable under the adoption of a small-sized cable connector without providing a lock mechanism in the connector housing. It is an object of the present invention to provide a detachment prevention device for a cable connector that can reliably prevent damage to a printed circuit board.

[0005]

In order to achieve the above-mentioned object, the present invention adopts a so-called horizontal connector of a type in which a cable is pulled out to the side as a connector with a cable, and the horizontal connector is provided under the condition of straddling a printed circuit board. Using a restraining member that comes into contact with the flat top surface of the cable-equipped connector, the screw is tightened and fixed to the casing of the electric device,
A deformation preventing support piece may be provided in the gap between the printed circuit board and the housing.

With the above structure, the connector with cable is supported by pressing by the restraining member, and even when an external force such as a tensile force is applied to the cable, the connection relationship between both connectors is stably maintained, and the printed circuit board Damage is prevented.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention shown in the drawings will be described.

As a cable connector for a printed circuit board to which the present invention is applied, for example, as shown in FIGS. 1 to 3, a screw 4 is attached to a plurality of mounting bosses 3 formed on a housing 2 of an electric device. The board-side connector 5 is fixed to the printed board 1 by soldering at its insertion pin portion, and the connector 6 with a cable is inserted into the board-side connector 5.

As a special configuration of the present invention with respect to the above type, a so-called horizontal connector in which the cable 7 is drawn out to the side of the main body 8 as the board-side connector 5 and the top surface 9 of the main body 8 is formed flat In addition to adopting and separately providing a holding member 10 having a U-shaped (or L-shaped) cross section, a mounting boss 11 is provided in the housing 2 near both end edges of the printed board 1 near the board-side connector 5. The top portion is erected at a height corresponding to the top surface 9 of the cable-equipped connector 6, and the restraining member 10 is laid across both the mounting bosses 11 under the state of straddling the printed circuit board 1 and the board-side connector 5. While the middle portion is in contact with the top surface 9 of the cable-equipped connector 6 so as to come into contact with the screw 12, screw 12
By means of this, it is tightened and fixed to the mounting boss 11.

When the cable connectors are arranged side by side in the adjacent state, a long holding member 10 that can be shared is adopted as shown in the figure, and the connector 6 with cable in the plurality of cable connectors arranged in parallel is adopted. The top surface 9 may be attached so as to be in contact with the top surface 9 at the same time, and a deformation preventing support piece 13 of the printed circuit board 1 is provided in the gap between the printed circuit board 1 and the housing 2 near the board side connector 5. It is desirable to provide it on the housing 2 or the printed circuit board 1, so that the printed circuit board 1 can be prevented from being deformed against the pressure applied when the connector 6 with a cable is inserted and the pressure applied by the restraining member 10.

[0011]

As described above, according to the present invention, the horizontal connector of the type in which the cable 7 is pulled out to the side is adopted as the cable-equipped connector 6, and the cable-attached connector is provided under the condition of straddling the printed circuit board 1. A screw 1 is attached to the housing 2 by using a holding member 10 that abuts on the top surface 9 of the connector 6.
Since the connector with cable 6 is clamped and fixed by means of 2, the connector with cable 6 is supported by the pressing by the restraining member 10, and the connection between the connectors is stable even when an external force such as a tensile force is applied to the cable 5. In addition to the above, the printed circuit board 1 is surely prevented from being damaged, and the board side connector 5 having no lock mechanism attached to the housing does not increase the space occupied by the lock mechanism unlike the conventional device. The printed circuit board 1 can be downsized as compared with the conventional device having the lock mechanism, and by providing the deformation preventing support piece 13 in the gap between the printed circuit board 1 and the housing 2, It is possible to prevent the deformation of the printed circuit board 1 against the pressing at the time of insertion and the pressing by the suppressing member 10.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view showing a device for preventing detachment of a cable connector for a printed circuit board according to the present invention.

2 is a vertical sectional end view of the detachment prevention device of FIG. 1. FIG.

3 is a partially cutaway plan view of the detachment prevention device of FIG. 1. FIG.

FIG. 4 is a front view illustrating a conventional device.

FIG. 5 is a front view illustrating another conventional device.

[Explanation of symbols]

 1 Printed Circuit Board 2 Housing 3 Mounting Boss 5 Board Side Connector 6 Cable Connector 7 Cable 8 Main Body 9 Top Surface 10 Retaining Member 11 Mounting Boss 12 Screw 13 Deformation Preventing Supporting Piece

Claims (2)

[Claims] 1. A printed board (1) is fixed to a plurality of mounting bosses (3) formed on a housing (2) with screws (4), and a board-side connector (5) is attached to the printed board (1).
Is a detachment prevention device for a cable connector of the type in which a connector (6) with a cable is fixed to the connector (5) on the board side, and the connector (5) on the board side is provided.
For the above, a horizontal connector in which the cable (7) is pulled out to the side of the main body (8) and the top surface (9) of the main body (8) is formed flat is adopted. Installs a mounting boss (11) near both edges of the printed board (1) near the board-side connector (5) at a height such that the top of the boss matches the top surface (9) of the connector with cable (6). Under the condition of straddling the printed circuit board (1) and the board-side connector (5), the restraining member (10) is spanned over both the mounting bosses (11), and the intermediate portion of the restraining member (10) is a connector with a cable (6). (4) While being in contact with the top surface (9) of (1), it is tightened and fixed to the mounting boss (11) with screws (12) near both ends, and a device for preventing detachment of a cable connector for a printed circuit board. . 2. A support piece (13) for preventing deformation of the printed board (1) is provided in a gap between the printed board (1) and the housing (2) near the board-side connector (5). Detachment prevention device for the printed circuit board cable connector.