JP2603556Y2 - FPC 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 an FPC (Flexible Printed Circuit) board connecting device, and more particularly to an FP.
The present invention relates to an FPC board connection device for waterproofing a connection portion between a C board and a connector.

[0002]

2. Description of the Related Art Conventionally, FPC boards have been widely used as wiring circuits for electrical equipment and the like. In particular, when used for a remote controller for a bath, etc., an FPC board is arranged along a case housing, and a connecting tongue of the FPC board and the connector member are inserted into a connection recess of a connector member formed in the case housing. It is electrically connected.

[0003] However, in the conventional technique, for example, in the case of a remote controller for a bath or the like, it is usually easy to receive hot water or moisture, and the hot water flows into the connection recessed portion along the outer surface of the case housing, and the conductive material becomes conductive. Baths may be caused by corrosion of the terminals of the pattern or connector member, impairment of the insulation between the conductive patterns due to impurities in the hot water, or hot water entering through the cord outlet of the connector member and causing poor conduction between the terminals. There is a problem that a malfunction occurs in the operation of the remote controller.

[0004] In view of the above, an object of the present invention is to prevent the above problem from occurring. A waterproof wall formed at a necessary portion around a connection concave portion of a case housing and a waterproof cover covering a connector member enter the connection concave portion. There is one that prevents infiltration of hot water or the like.

[0005]

However, in the prior art, since the waterproof wall is not provided at a portion where the connecting tongue faces the connecting recess, the connecting tongue penetrates between the case housing and the FPC board. Water penetrates into the FPC board and the connector member due to the capillary phenomenon, corrodes the FPC board and the terminals of the connector member, etc., and causes poor conduction.

[0006]

Means for Solving the Problems] The present invention is to solve the conventional problems, and the case housing, and the FPC board that is disposed in the casing housing, the F PC is formed in the casing housing become more and connecting recess may be located a connecting tongue piece of the leaf, before SL connects the engaging hole plurality formed in the tongue, the form a connecting recess entire circumference waterproofing wall, and the waterproof wall near said connecting recess Forming an engagement portion for engaging the engagement hole with the inside, and mounting a connector member in the connection recess.
A plurality of parallel conductive parts formed on the connecting tongue and
While electrically connecting the terminals of the connector member,
The connecting tongues climb over the waterproof wall and
The connector is configured such that the engagement hole is engaged with the engagement portion, and a waterproof cover that covers the waterproof wall is covered by the connector member.

[0007]

According to the above construction, intrusion of water into the connector member is prevented. In addition, when the connecting tongue is fixed in the connection recess, the connection tongue can be prevented from being lifted up and securely fixed in the connection recess.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, a case housing 1 made of a synthetic resin used for a
The PC board 2 is provided by pins 3 erected on the case housing 1. The case housing 1 is formed with a connection recess 5 in which the connection tongue 4 of the FPC board 2 faces.
A connector member 6 made of a synthetic resin is mounted on the connector. The connecting tongue 4 is provided with a conductive portion 8 connected to the conductive pattern 7 provided on the FPC board 2. With the connecting tongue piece 4 facing the inside of the connection recess 5, the connector member 6 is inserted into the connection recess 5, and the conductive portion 8 of the FPC board 2 and the terminal 9 of the connector member 6 are electrically connected.

A waterproof wall 10 is formed on the entire circumference of the connection recess 5, and the height of the waterproof wall 10 where the connecting tongue 4 of the FPC board 2 faces the connection recess 5 is the same as the waterproof wall of the other portions. It is formed one step lower than the height of 10. Two pins 13 each serving as an engagement portion for fixing the FPC board 2 are formed on the first bottom portion 11 near the inside of the waterproof wall 10 and the second bottom portion 12 in the connection recess 5. The FPC board 2 is formed with an engagement hole 14 for engaging a pin 13 as an engagement portion.
Is provided at the end of the conductive pattern 7 on the side of the connecting tongue 4, and the engaging hole 14 corresponding to the engaging portion 13 of the second bottom 12 is 4 at the tip of the conductive part 8
It is formed at a position separated from the group, and the vicinity of the engagement hole 14 is surrounded and reinforced by a conductive pattern 15 that is not electrically connected. In the connecting tongue 4, the conductive portions 8 are formed to a position where they do not reach the bottom 12 of the connecting recess 5 so as to easily follow the connecting recess 5.

The connector member 6 is covered with a waterproof cover 16 formed of an elastic member.
When the connector member 6 is connected to the inside, the outer periphery of the waterproof wall 10 is covered and waterproofed.

The present invention is not limited to the above embodiment, but can be variously modified. For example, although the pin 13 as the engaging portion is provided on the first bottom portion 11 near the inside of the waterproof wall 10 and the second bottom portion 12 in the connection concave portion 5, it is not necessary to provide the pins 13 and 12 on the waterproof wall 10. 10 and the inside of the connection recess 5;
What is necessary is just to provide in the position which can fix the FPC board 2 reliably.

Although the engaging portion 13 is a pin, it may be hooked and the FPC board 2 may be hooked.

[0013]

According to the above construction, the waterproof wall is provided on the entire periphery of the connection recess, so that hot water or water that has entered between the case housing and the FPC board due to the capillary phenomenon can be prevented from entering the connector member. The engaging portion for fixing the connection tongue piece in the connection recess over the waterproof wall can prevent the FPC board from rising and prevent the terminal portion from reaching the bottom of the connection recess, so that the FPC board follows the inside of the connection recess. By doing
Reliable electrical connection can be made.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a first embodiment of the present invention.

FIG. 2 is a top view of the case housing of the embodiment.

FIG. 3 is a cutaway perspective view of a main part of the embodiment.

FIG. 4 is an overall perspective view of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case housing 2 FPC board 3 Pin 4 Connection tongue 5 Connection recess 6 Connector member 7 Conductive pattern 8 Conductive part 9 Terminal 10 Waterproof wall 11 First bottom 12 Second bottom 13 Engagement part (pin) 14 Engagement hole 15 Conductive pattern 16 Waterproof cover

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01R 12/28 H01R 13/52

Claims (2)

(57) [Scope of request for utility model registration] A case housing [1 claim], the FPC board that is disposed in the case housing, Ri more the connection recess may be located a connecting tongue piece is formed in the casing housing the F PC board, the connecting tongue the engagement hole at one forming a plurality of said forming a connecting recess entire circumference waterproof walls, an engagement portion for engaging said engaging hole in the interior of the waterproof wall near said <br/> connecting recess Forming a connector member in the connection recess,
A plurality of parallel conductive parts formed on a piece and the connector
Electrically connecting the terminal of the member to the terminal;
Crosses over the waterproof wall and engages in the connection recess.
The FPC board connecting device , wherein the engaging hole is engaged with the FPC board. 2. The F according to claim 1, wherein a waterproof cover for covering the waterproof wall is coated on the connector member.
PC board connection device.