JP3288932B2 - Remote control 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 remote control device used for operating a bath kettle with a water heater provided outside a room from a bathroom.

[0002]

2. Description of the Related Art A remote control device for a bath used for operating a bath kettle with a water heater has an electronic circuit built in a case, so that water droplets and steam in a bathroom do not enter the case. So that the case is sealed.
Also, in such a bath remote control device, various switches are provided inside the case, and the surface of the case is covered with a thin plastic sheet, and various operations are performed by pressing switches with a finger from above the sheet. ing.

[0003] In such a conventional remote control device, since the case is sealed, the air pressure inside the case of the remote control device changes due to a change in the temperature in the bathroom. Therefore, the thin-film sheet is sucked into the case or pushed out of the case when the air pressure changes, so that the expansion and contraction of the sheet accelerates the deterioration. For this reason, a crack may be generated in the sheet, and water droplets may enter the case.

Conventionally, in order to solve the above-mentioned inconvenience, a vent is provided in a case to open the inside of the case to the atmosphere and keep the inside at atmospheric pressure. Further, in order to prevent water or steam from entering the case through the vent, the vent is covered with a porous membrane that allows air to pass through without passing through water.

For example, in Japanese Utility Model Publication No. Hei 6-26235, a vent hole is provided substantially at the center of the back surface of the remote control case to communicate the inside with the outside air, and air passes through the vent hole inside the remote control case. There is disclosed a bath remote control in which a moisture-proof member made of a film or the like that does not pass water or moisture is stretched.

However, in such a configuration, a lead-out portion for connecting an electronic circuit provided inside the remote control case to an external combustion device must be provided at a place other than the vent hole. In the above example, the lead wire connection terminal is provided on the back surface of the remote control case. However, in order to prevent water droplets from entering the lead wire connection terminal, a member that separates the lead wire connection terminal from the bathroom is separately provided. There is a need. Therefore, there is an inconvenience that the size of the remote control case cannot be reduced, and the work of installing the remote control becomes troublesome.

Further, Japanese Patent Publication No. 7-81736 discloses that
There is disclosed a remote control device in which a connection tube protruding toward the outside of the case is provided substantially at the center of the rear surface of the remote control case, and a cable connected to a printed circuit board inside the case is led out from the connection tube. In this example, a disk-shaped auxiliary plate provided with a hole for inserting a cable in the center is attached by pressing a protective pipe inside the connection tube with a protective pipe, and through holes are provided in several places of this auxiliary plate, A porous film is attached to the inner surface of the case of the auxiliary plate.

However, in such a configuration, when assembling the auxiliary plate to the connection tube, it is necessary to insert the auxiliary plate from the end of the cable not connected to the printed circuit board. Therefore, the assembling operation is troublesome, and the porous film attached to the auxiliary plate may be damaged or peeled off during the assembling operation. In this case, there is an inconvenience that water droplets enter the remote control case from locations where the porous film is damaged.

Further, Japanese Patent Application Laid-Open No. 8-98279 discloses that
The remote control body is mounted on the wall of the bathroom through the remote control mounting hole that penetrates the bathroom wall, and a stay pipe mounting part to be fitted to the remote control mounting hole is formed on the rear side case of the remote control main body, and this stay pipe mounting part A bathroom remote control is disclosed in which a breathing hole communicating between the inside and the outside of a remote control main body is provided, and the breathing hole is covered with a film having both air permeability and waterproofness. In this example, a step is provided between the hole on the inner side of the remote control main body of the breathing hole and the external hole to prevent damage to the membrane due to foreign matter from the outside.

However, in such a configuration, in order to form the holes so as to communicate with each other reliably, the diameters of both holes need to be large, and there is a disadvantage that the stay pipe mounting portion becomes large.

[0011]

SUMMARY OF THE INVENTION An object of the present invention is to improve a remote control device. More specifically, in order to solve the above-mentioned inconvenience, the sealed state inside the case of the remote control device is released, and water droplets are contained in the case. It is an object of the present invention to provide a remote control device capable of reliably preventing the intrusion of a remote control.

[0012]

In order to achieve the above object, a remote control device according to the present invention includes a case provided in a bathroom, an electronic circuit provided in the case, and a remote controller connected to the electronic circuit. A wiring extending from the case, a protective pipe for housing the wiring therein, and a cable on a back surface of the case.
A cylindrical mounting portion provided to be recessed in the base and to which the protection pipe is mounted, wherein the protection pipe extends inside a communication hole provided in a bathroom wall and communicating between the bathroom and the outside. A ventilation hole penetrating the side wall of the mounting portion and communicating between the inside of the case and the inside of the protection pipe is provided in a direction substantially perpendicular to the axial direction of the protection pipe. Preferably, a porous membrane is provided in the opening of the ventilation hole on the inner surface side of the case, which allows air and steam to pass without passing water.

According to this, the inside of the case and the inside of the protection pipe are communicated with each other through the ventilation hole, and the inside of the case is released to the atmosphere and the sealed state is released. Therefore, even if the temperature in the room changes, the air pressure in the case is kept constant.

Further, since the porous membrane is provided at the opening of the ventilation hole on the inner surface side of the case, water droplets do not enter through the ventilation hole. Further, since the porous membrane is provided in the case, the porous membrane is not damaged by contact with other members. Therefore, even when the remote control device is installed in a bathroom or the like, the porous film does not interfere with the protection pipe or the like and is not damaged or peeled off.
Intrusion of water droplets into the case can be reliably prevented.

[0015] Further, since the ventilation hole is provided to penetrate the side wall of the mounting portion, foreign matters hardly enter the ventilation hole when the protective pipe is assembled to the case. Therefore, damage and peeling of the porous film provided inside the case can be reliably prevented. Further, since the ventilation hole only penetrates the side wall of the mounting portion, it is not necessary to enlarge the mounting portion.

The mounting portion is a bottomed cylindrical body recessed into the inside of the case, and a wiring leading portion for leading the wiring is provided at the center of the bottom of the mounting portion. towards being attached to, the so vent was made to communicate with in said protective pipe through the distal end portion side opening of the protective pipe, the lead the cable outlet or found before Symbol wire, the protective pipe the attachment portion By simply mounting the case, the inside of the case can be communicated with the outside via the protective pipe. Therefore, when the case is installed in the bathroom, the work is facilitated.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory sectional view showing an example of an embodiment of a remote control device of the present invention, and FIG. 2 is an enlarged sectional view showing a main part of the present embodiment.

In the remote control device of the present embodiment, the back of the case 1 is attached to the wall 2 of the bathroom with mounting screws (not shown). A communication hole 3 is provided in the bathroom wall 2 for communicating between the interior and the exterior of the bathroom.
Is extended. Inside the protective pipe 4, a wiring 5 connected to the electronic circuit board (the wiring inside the case 1 is not shown)
Is drawn out from a wiring lead-out portion 6 provided on the back of the case 1 and connected to a combustion device (not shown) outside the bathroom.

The case 1 is made of a synthetic resin and includes a case body 7, a case back cover 8, and a switch cover 9. The case body 7 and the case back lid 8 are joined via a packing (not shown), and the operation surface of the case body 7 where the switch 10 is provided is covered with a thin plastic sheet 11. Thus, the case 1 is formed so that the inside is airtight except for the ventilation hole 12 and the wiring lead-out portion 6.

The switch 10 is divided into a head 13 and a torso 14. The head 13 is provided outside the seat 11 and fits into a fitting hole of the switch cover 9 and protrudes from the surface thereof. The body 14 is provided inside the seat 11 and is in contact with a push switch 16 provided on a base 15 assembled to the case body. Therefore, when the head 13 of the switch 10 is pressed, the body 14 is pressed together with the seat 11, and the push switch 16 is operated.

At approximately the center of the case back lid 8, a protective pipe mounting portion 17 is provided. This protection pipe mounting part 17
Is recessed toward the inside of the case 1 and is formed as a bottomed cylindrical body. As shown in FIG. 2, a female thread 17 is provided on the inner peripheral surface on the outlet side of the side wall of the protection pipe mounting portion 17.
a is formed, and the wiring lead-out portion 6
Is provided. Further, the wiring 5 is led out from the inside of the case 1 to the outside from the wiring leading section 6. Wiring deriving unit 6
A rubber bush 19 is fitted in the gap between the wire and the wiring 5 so as to prevent outside air and water droplets from entering.

On the bottom side wall of the protection pipe mounting portion 17, the inside of the case 1 and the protection pipe 4 penetrate through the side wall.
Is provided with a ventilation hole 12 communicating with the inside of the device. The ventilation hole 12 has a diameter of about 2 mm and is provided in a direction substantially perpendicular to the axial direction of the protection pipe 4. A recess 21 is provided in the bottom 18 along the outer periphery of the wiring lead-out portion 6, and an opening of the ventilation hole 12 on the side of the protection pipe 4 opens into the recess 21.

A porous film 22 is stretched over an opening of the ventilation hole 12 on the inner side of the case back cover 8. In the present embodiment, the tetrafluoroethylene resin is used for the porous film 22. This ethylene tetrafluoride resin has a property of passing air and water vapor without passing water.

As shown in FIG. 2, an external thread portion is formed on the outer periphery of the distal end portion of the protective pipe 4 on the side of the protective pipe mounting portion 17, and an internal thread portion 17a formed on the protective pipe mounting portion 17 is formed. Is screwed into. When the protection pipe 4 is screwed into the protection pipe mounting portion 17, the tip of the protection pipe 4 abuts on the bottom 18 to fix the protection pipe 4.
Therefore, the inside and the outside of the case 1 communicate with each other through the opening on the distal end side of the protection pipe 4, the recess 21, the ventilation hole 12, and the porous film 22.

A waterproof sheet 20 made of foamed ethylene propylene rubber is provided between the back of the case back lid 8 and the wall 2 of the bathroom around the communication hole 3 so that the inside of the bathroom and the communication hole 3 are connected. Is shut off so that water droplets and moisture inside the bathroom do not enter the communication hole 3.

In the present embodiment, as described above, the inside of the case 1 communicates with the outside through the porous membrane 22 and the ventilation holes 12 and the protection pipe 4, so that the inside of the case 1 is always kept at substantially atmospheric pressure. Will be kept. Therefore, even if the temperature in the bathroom changes, the air pressure in the case 1 does not change and the sheet 11 is not sucked or pushed out, so that the deterioration of the sheet 11 can be prevented. Further, since the porous film 22 is stretched over the opening of the ventilation hole 12, water droplets do not enter the case 1.

Since the ventilation hole 12 is provided substantially perpendicular to the axial direction of the protection pipe 4, foreign matter hardly enters the ventilation hole 12 even when the protection pipe 4 is mounted on the protection pipe mounting portion 17. Therefore, there is no possibility that the porous film 22 is damaged or peeled due to the intrusion of foreign matter from the air holes 12. The ventilation hole 12 only penetrates through the side wall of the protection pipe mounting portion 17 from the inside of the case back cover 8 toward the recess 21, so that it is not necessary to form the protection pipe mounting portion 17 large.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing an example of an embodiment of a remote control device of the present invention.

FIG. 2 is an enlarged sectional view showing a main part of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Case, 2 ... Bathroom wall, 3 ... Communication hole, 4 ... Protective pipe, 5 ... Wiring, 6 ... Wiring lead-out part, 12 ... Vent hole, 17 ...
Protective pipe mounting part, 22 ... porous membrane.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H04Q 9/00-9/16 F24H 1/00

Claims (2)

(57) [Claims] 1. A case provided in a bathroom, an electronic circuit provided in the case, a wiring connected to the electronic circuit and led out of the case, and a protection pipe for housing the wiring therein. A cylindrical mounting portion provided in the back surface of the case so as to be recessed into the case and to which the protective pipe is mounted, and provided on a wall of the bathroom to communicate between the bathroom and the outside. A remote control device in which the protection pipe extends inside a hole, wherein a ventilation hole that penetrates a side wall of the mounting portion and communicates the inside of the case and the inside of the protection pipe is formed in an axial direction of the protection pipe.
The remote control device is provided in a substantially vertical direction, and a porous film that allows air and steam to pass through the opening of the ventilation hole on the inner surface side of the case without passing water. 2. The mounting part is a bottomed cylindrical body recessed into the case, and a wiring lead-out part for leading the wiring is provided at the center of the bottom of the mounting part. 2. The remote control device according to claim 1, wherein the remote control device is mounted toward the bottom portion, and the ventilation hole communicates with the inside of the protection pipe through an opening at a tip end portion of the protection pipe.