JP3289488B2 - Flexible printed wiring board connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

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

[0003]

However, in the above configuration, the reinforcing plate 6 is attached and detached by moving the portion of the reinforcing plate 6 between fingers in the directions of arrows A and B. Must be configured so as to protrude from the engagement hole 10 of the connector body by at least a length L that can be pinched by a finger.

In addition, since the reinforcing plate 6 needs to be moved in the directions of the arrows A and B at the time of attachment / detachment as described above, at least a space longer than the length M of the reinforcing plate 6 is provided in front of the engaging hole 10 of the connector body. This is necessary, which is inconvenient for downsizing the electronic device. That is, as shown in FIG. 5, a configuration in which another large component 11 is arranged close to the front surface of the engagement hole 10 of the connector main body cannot be taken.

[0005]

In order to achieve this object, an apparatus for connecting an FP board according to the present invention comprises an FP board having a connecting terminal provided with a bendable end, and a bent portion of the FP board. A connector main body having an insertable insertion hole, and a lock arm mechanism movably attached to the connector main body so as to pull a bent portion of the FP board into the engagement hole of the connector main body.

[0006]

According to this structure, the movable lock arm of the connector main body is engaged with the bent portion of the FP board, and with the movement of the lock arm, the bent portion is drawn into the engagement hole of the connector main body. Since both connection terminal portions can be connected by crimping, it is not necessary to pinch the reinforcing plate with fingers for attachment and detachment as in the related art, and the length of the reinforcing plate can be shortened.

[0007]

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 board during a connection operation in the embodiment. In FIG. 1, reference numeral 4 denotes a band-shaped FP substrate, and the front end thereof has a plurality of symmetrical lines around a folding line 8 set near the end so as to be parallel to the end as shown in FIG. The connection terminals 5 are formed, and the connection terminals 5 are respectively connected to the electric connection lines 9 of the FP board 4.

[0008] On the back surface of the FP board 4, FIG.
As shown most clearly, reinforcing plates 6a and 6b having rigidity such as an aluminum plate are provided so that they can be bent at the position of the bending line 8 and a slight gap 8a is formed at the back surface of the bending line 8. Are joined.

Reference numeral 3 denotes a connector main body made of an insulator, on one side of which is formed an engagement hole 10 into which the FP board 4 bent at the bending line 8 is inserted.
The inserted FP is provided on the upper and lower surfaces in the engagement hole 10.
Contact terminals 1 and 2 are provided to be in pressure contact with the connection terminals 5 of the substrate 4, respectively.

Reference numeral 7 denotes F bent at the bending line 8
A lock arm having an engagement arm portion for engaging with the P substrate; a first position where the engagement arm portion is located outside the engagement hole and a second position where the engagement arm portion is retracted into the engagement hole; 2 so that the connector body 3 can be moved between
Attached to.

In the above configuration, 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 7a located at the first position. When the lock arm 7 is moved to a predetermined position in the direction of arrow A in this state, the FP board 4 is pulled into the engagement hole 10 with this movement, and the connection terminals 5 are connected as shown in FIG. And the contact terminals 1 and 2 are brought into pressure contact with each other, and electrical connection is obtained.

[0012]

As described above, the connecting device for an FP board according to the present invention is capable of bending an end portion and having a connecting terminal at the bent portion, and a connector capable of inserting the bent portion. A connector body having a mating hole and a lock arm engaged with the bent portion and attached to the connector body so as to be guided and inserted into the engagement hole, wherein the movable lock arm of the connector body is an FP board. engages the bent portion of the, with the movement of the lock arm, the bent draws portion engaging hole of the connector body, since both the connection terminal portions can be crimped connection, FP substrate as in conventional Into the engagement hole of the connector body.
This eliminates the need for insertion work and eliminates the need to form a large space in front of the engagement hole of the connector main body, which has a remarkable effect on miniaturization of electronic devices.

[Brief description of the drawings]

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

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

FIG. 3 is a sectional view taken along a line BB in FIG. 2 before bending;

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

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

[Explanation of symbols]

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

Claims (1)

(57) [Claims] A flexible printed circuit board formed near the end thereof so as to be capable of being folded in two along a preset bending line, and being positioned on a surface of a folded portion folded in half along the folding line. Connecting terminal rows respectively arranged on both sides in the vicinity of the bending line, a connector body having an engagement hole into which the bent portion can be inserted, and engaging with a bending line portion of the flexible printed wiring board to move the connector body. An engagement arm configured to draw the bent portion into the engagement hole.
And, arranged a locking arm movably mounted to the engaging said in contact to each of the plurality of connection terminals engagement located on the surface of the retracted bent portion in the hole if the hole in the connector body been Ri multiple name more the contact terminal, child moves the locking arm in the engaging hole
By the above, the plurality of connection terminal rows and the plurality of contact terminals
A flexible printed circuit board connection device, wherein the device is electrically connected to a terminal.