JPH0644129Y2 - Electronics - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] A lock release portion of a connector into which an end portion of a flexible board is fitted has notches exposed on both sides of a circuit board on which the connector is mounted. The lock release section can be operated even when the lid on the connector non-mounting surface side is opened.

[Industrial application field]

The present invention relates to an electronic device in which a connector for connecting to a flexible board is mounted on a circuit board.

[Conventional technology]

In an electronic device such as an on-vehicle audio device, a flexible substrate (hereinafter referred to as FPC) 4 is provided between the front plate 1 and the main substrate 3 inside the housing 2 as shown in FIG. I often connect with. In this case, the end of the FPC4 is fixedly connected on the front plate 1 side, and the FP is connected on the main board 3 side.
Often, the end of C4 is detachably connected with the connector 5.

In addition, 6 is various operation switches, 7 is a device body such as a deck,
8 is a bottom lid and 9 is an upper lid. A control circuit of the main body 7 and other linear circuits are mounted on the main board 3, and a connector 5 is also mounted on the same surface.

[Problems to be solved by the device]

By the way, since the connector 5 is mounted on the surface of the substrate 3 in the structure of FIG. 3, the FPC 4 cannot be detached from the connector 5 even if the bottom cover 8 is removed. Further, since the main body 7 becomes an obstacle just by removing the upper lid 9, the lock releasing portion of the connector 5 cannot be touched as it is.

The present invention is intended to solve the above-mentioned problems by forming a cutout portion around a connector of a circuit board.

[Means for Solving the Problems]

FIG. 1 is a block diagram of the present invention, in which the same parts as those in FIG. 3 are designated by the same reference numerals. The feature of the present invention is a portion A in FIG. 1 (a), and FIG. 1 (b) is an enlarged view thereof. Reference numeral 31 is a cutout portion formed around the connector of the circuit board 3, and reference numeral 51 is a lock release portion of the connector 5 which is exposed on both surfaces of the board 3 by the cutout portion 31.

[Action]

If the notch 31 is formed in the board 3, the unlocking portion 51 of the connector 5 can be touched from both sides of the board 3, so that the main body 7 and the board 3 are installed in the housing as shown in FIG. Even if the connector 5 is mounted on the surface of the substrate 3, the FPC 4 and the connector 5 can be detachably fitted by simply removing the bottom plate 8, so that, for example, the front plate 1 can be easily detached and fitted.

FIG. 2 shows the details of the unlocking section 51, (a) is a conventional type,
(B) is an improved type. In the figure, 52 is a locking lever,
Lock in the direction of arrow B and unlock in the opposite direction. The part that gives the operation force for this release is the lock release part 51.
In the normal type, this part is about 0.5 mm and it is difficult to grip, and it is not suitable for pressing tools such as screwdrivers. (B)
This improved type has a contact portion 53 formed by enlarging this portion to about 2 mm and further recessing it so as not to damage the inside of the device with a driver or the like.

〔Example〕

FIG. 4 is a block diagram of a connector 5 showing an embodiment of the present invention, in which 54 is an actuator, 55 is a housing, 56 is a terminal, and 57A and 57B are front and rear terminals.

Actuator 54 can slide back and forth, FPC in the center
It has an insertion opening 541, and has the above-mentioned lock release portion 51, lock lever 52, and contact portion 53 on both wings.

The housing 55 has a built-in elastic terminal 56 inside,
Further, terminals 57A and 57B are projected from the bottom surface, and further, both wings have a lock portion 551 and a stopper 552.

The operation will be described. As shown in FIG. 4 (c), the FPC 4 is moved in the B direction and pushed into the housing 55, and then the actuator 54 is pushed in the same direction. Retained. At this time, the locking lever 52 crosses over the locking portion 551 and enters a locked state as indicated by the alternate long and short dash line in FIG. 7B, and the FPC 4 cannot be disengaged.

To release this state, hook a finger or a tool such as a screwdriver on the abutting part 53 and lock the unlocking part as shown in FIG.
Push 51 in the direction so that lever 52 goes over lock portion 551. In this way, terminal 56 of (c) is FP
Since the pressure contact of C4 is released, FPC4 can be pulled out easily.

(D) shows the movement of the actuator 54, and (e) shows an example in which four patterns 41 are provided at the end of the FPC 4.

FIG. 5 shows a conventional connector structure, which is almost the same as that of FIG. 4 except for the shape of the unlocking portion 51.

[Effect of device]

As described above, according to the present invention, even if the connector for FPC connection is mounted on the shadow side of the circuit board, there is an advantage that the FPC can be easily attached and detached.

[Brief description of drawings]

 1 is a block diagram of the present invention, FIG. 2 is a detailed view of an unlocking portion, FIG. 3 is a block diagram of a conventional electronic device, FIG. 4 is a block diagram of an embodiment of the present invention, and FIG. It is a block diagram of the conventional connector.

Claims (1)

[Scope of utility model registration request] 1. A connector (5) which accommodates a circuit board (3) inside an equipment casing (2) and is attached to one surface of the board (3).
In an electronic device in which an end portion of a flexible board (4) is fitted to a part of the circuit board (3), an unlocking portion (51) of the connector (5) is provided on the other surface of the circuit board (3). An electronic device comprising a notch (31) that is exposed on the side.