JPH07335341A - Flexible printed wiring board connection device - Google Patents

Abstract

(57) [Abstract] [Purpose] Flexible printed wiring board (FP board)
The present invention provides a concrete configuration useful for downsizing of electronic equipment by reducing the space required for attaching and detaching the FP board to and from the connector body. [Structure] A tip end portion of an FP substrate 4 provided with connection terminals 5 is configured to be bendable along a bending line 8, and a lock arm 7 movably provided on a connector body 3 is provided.
It is engaged with the bent portion, and the F
The bent portion of the P substrate 4 and the engagement hole 10 of the connector body 3
To the contact terminals 1 and 2 of the connector body 3 by crimping.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flexible printed wiring board (hereinafter referred to as FP board) connecting device.

[0002]

2. Description of the Related Art Conventionally, a connection device having a structure shown in FIG. 5 has been considered as a connection device for detachably connecting an FP substrate. That is, the connection terminals 5 are formed on the surface of the strip-shaped FP substrate 4 to be connected, the reinforcing plate 6 having rigidity such as an aluminum plate is joined to the back surface side, and the rigidity of the reinforcing plate 6 is used to The reinforcing plate 6 is inserted into and removed from the engagement hole 10 of the connector main body 3 with the portion of the reinforcing plate 6 sandwiched between the fingers.

[0003]

However, in the above structure, since the reinforcing plate 6 is sandwiched between fingers and moved in the directions of arrows A and B for attachment and detachment, the reinforcing plate 6 is connected even after connection. It is necessary to configure the end of the connector so that it projects from the engagement hole 10 of the connector body by at least the length L that can be sandwiched by fingers.

Further, since the reinforcing plate 6 needs to be moved in the directions of the arrows A and B at the time of attachment / detachment, at least a space having a length M or more of the reinforcing plate 6 is at the front surface of the engaging hole 10 of the connector body. This is necessary, which is inconvenient for downsizing electronic devices. That is, as shown in FIG. 5, a structure in which another large-sized component 11 is arranged close to the front surface of the engagement hole 10 of the connector body cannot be taken.

[0005]

In order to achieve this object, a connecting device for an FP board according to the present invention comprises an FP board having a connecting terminal and a tip end portion that can be bent, and a bent portion of the FP board. It has a connector main body having an insertable engagement hole and a lock arm mechanism movably attached to the connector main body so that the bent portion of the FP board is drawn into the engagement hole of the connector main body.

[0006]

According to this structure, the movable lock arm of the connector main body engages with the bent portion of the FP board, and the bent portion is drawn into the engaging hole of the connector main body as the lock arm moves. Since both connection terminal portions can be crimped and connected, it is not necessary to sandwich the reinforcing plate with fingers for attachment and detachment as in the conventional case, and the length of the reinforcing plate can be shortened.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a state of the FP substrate during the connecting operation in the embodiment. In FIG. 1, reference numeral 4 is a strip-shaped FP substrate, and a plurality of symmetrical folds are formed at the tip of the FP substrate around a fold line 8 which is set in the vicinity of the edge and parallel to the edge as shown in FIG. The individual connection terminals 5 are formed, and these connection terminals 5 are connected to the electrical connection lines 9 of the FP substrate 4, respectively.

Then, on the back surface of the FP substrate 4, as shown in FIG.
As is most clearly shown in FIG. 1, the reinforcing plates 6a and 6b having rigidity such as aluminum plates are so formed as to be bendable at the position of the bending line 8 so that a slight gap 8a is formed on the back surface of the bending line 8. It is joined.

Reference numeral 3 denotes a connector main body made of an insulating material, and one side surface thereof is formed with an engagement hole 10 into which the FP board 4 bent by the bending line 8 is inserted.
The upper and lower surfaces of the engaging hole 10 have the FP inserted therein.
Contact terminals 1 and 2 are provided which are in pressure contact with the connection terminals 5 of the substrate 4, respectively.

Reference numeral 7 is an F bent at the bending line 8.
It is a lock arm having an engaging arm portion 7a that engages with the P substrate 4, and the engaging arm portion 7a is drawn into the engaging hole 10 at a first position outside the engaging hole 10. The connector body 3 so that it can move between the two positions.
Is attached to.

In the above structure, when the FP board 4 is connected, as shown in FIG. 1, the FP board 4 bent at the bending line 8 is engaged with the engaging arm portion 7a located at the first position. In this state, when the lock arm 7 is moved to a predetermined position in the direction of arrow A, the FP board 4 is pulled into the engagement hole 10 with this movement, and the connecting terminal 5 is connected as shown in FIG. And the contact terminals 1 and 2 are in pressure contact with each other, and an electrical connection is obtained.

[0012]

As described above, in the FP board connecting device of the present invention, the tip portion can be bent, and the FP board having the connection terminal at the bent portion and the bent portion can be inserted. The connector main body having a fitting hole and the lock arm attached to the connector main body so as to be engaged with the bent portion and guide-inserted into the engagement hole, and the movable lock arm of the connector main body is the FP board. Since the bent portion is engaged with the bent portion of the connector, and the bent portion is pulled into the engaging hole of the connector body with the movement of the lock arm, both connecting terminal portions can be crimped and connected. Since it is not necessary to pinch with the fingers, the length of the reinforcing plate can be shortened. As a result, it is not necessary to form a large space in front of the engagement hole of the connector body, which has a remarkable effect on downsizing of electronic equipment.

[Brief description of drawings]

FIG. 1 is a perspective view showing a connecting operation of an FP board connecting device according to an embodiment of the present invention.

FIG. 2 is a plan view of a main part of an FP substrate used in the same embodiment.

3 is a cross-sectional view taken along line BB of FIG. 2 before being bent.

FIG. 4 is a sectional view of the same embodiment in a connected state.

FIG. 5 is a cross-sectional view showing a conventional FP board connection device.

[Explanation of symbols]

 1, 2 Contact terminal 3 Connector body 4 FP board 5 Connection terminal 6a, 6b Reinforcing plate 7a Lock arm part 8 Bending line 10 Engagement hole

Claims (1)

[Claims] 1. A flexible printed wiring board, which is formed in such a manner that it can be folded in two along a preset folding line near its end, and is located on the surface of a folded portion folded in two along said folding line. And a connector main body having connection terminal rows respectively disposed on both sides in the vicinity of the bending line, an engaging hole into which the bending portion can be inserted, and engaging the bending line portion of the flexible printed wiring board, and moving the same. A lock arm movably attached to the connector body so as to draw the bent portion into the engaging hole, and the plurality of connections located on the surface of the bent portion drawn into the engaging hole. A connecting device for a flexible printed wiring board, comprising a plurality of contact terminals arranged in the engagement holes so as to be in contact with the respective terminals for use.