JP3084839B2 - Control equipment for bathroom equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with equipment used in a bathroom or used as a remote controller of a water heater installed outside the bathroom to supply hot water to the bathroom. It relates to the control device.

[0002]

2. Description of the Related Art FIGS. 3A and 3B show a conventional remote controller for a water heater (hereinafter also referred to as a remote controller). The case front side 31 and the case back side 34 are fastened by screws 32 with the packing 33 interposed therebetween, forming a watertight container. The case back side 34 is attached to a bathroom wall 36 via a cushioning material 37. The lead wire 39 of the electronic circuit unit 35 is drawn out from the ventilation pipe 40 and connected to a water heater (not shown) installed outside the bathroom. The case front side 31 has an input operation unit 41 for inputting an instruction signal of the water heater, and this operation input has been sent to the water heater via the electronic circuit unit 35.

[0003]

Problems to be solved by the above configuration are as follows.
That is, an ideal function of the packing 33 cannot be obtained.
When the packing 33 is made completely watertight, the remote controller changes its temperature according to the bathroom temperature that changes every time the bath is used for a long period of several months to several years. Moisture contained may be dewed and accumulated in the case, adhere to and accumulate on the surface of the electronic circuit unit 35, and lose normal functions. As a countermeasure, even if the ventilation pipe 40 is airtightly closed, there is no effect due to a small amount of moisture permeating from the front surface of the case including the packing 33, and furthermore, the internal temperature of the remote controller is heated by the bathroom air and the self-heating of the electronic circuit section 35. As a result, there is a problem that the electronic circuit 35 operates abnormally.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a control device for bathroom equipment that can suppress the adhesion of dew condensation water to an electronic part or the like housed therein and a rise in internal temperature, and maintain a normal operation of electronic parts.

[0005]

A first means for solving the above-mentioned problems is to install a case in which a vertical direction is set in a bathroom to prevent intrusion of moisture, and an electronic component housed in the case. The upper vent and the lower vent which are divided and arranged with a height difference on the inner surface of the case, and a space communicating with the vent,
It is provided on the back of the case cooled by the wall facing the outside air, and the air inside and outside the case equilibrates the temperature difference with each other in the lower ventilation port, and water and water droplets do not pass from the outside of the case into the case. It has a waterproof breathable membrane. Second
Means has a ventilation pipe in which the space communicates with air outside the bathroom.

[0006]

According to the first means, in the control device for bathroom equipment according to the present invention, the temperature of the air in the bathroom rises every time the bath enters and comes into contact with the outer surface of the case, thereby heating the control device from the outside. Further, when the electronic components operate and generate heat by themselves, the control device itself heats the sealed air in the case and raises the temperature. If the air temperature inside the case becomes higher than the air temperature in the space provided on the back of the case due to these temperature rises, a specific gravity difference will occur between the two airs, and the air in the space on the back of the case will lose flows from the waterproof breathable membrane with the lower vent into the case is replaced with hot air in the casing, the hot air in the casing is provided from the top vent of the case rear portion
Spilled into the space . At this time, the moisture of the components in the case is also absorbed by the high-temperature air and flows out at the same time. Set the case back part
Air vignetting space portion is cooled Ri by the wall, the moisture exceeding the saturation vapor pressure of the temperature or dew. In case the rear part
When the air in the provided space flows to the vent under the case,
The condensed water droplets do not enter the case due to the waterproof breathable membrane. When there is no bathing and the temperature of the bathroom is close to the outside air temperature, the above-mentioned action is weak and the flow of air is not determined, but the water content of the bathroom air is small and a large amount of water does not flow into the case. In this way, the moisture in the case is reduced, but not excessively increased, and the temperature in the case is effectively suppressed by the two ventilation holes, so that the electronic component can exhibit a normal operation. In addition, when the cooling of the wall is weak by the second means, the outside air is introduced by the ventilation pipe to enhance the cooling effect of the back space.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a control device for bathroom equipment according to the present invention will be described below with reference to the drawings.

FIG. 1 shows a remote control of a water heater as one embodiment of the present invention. A case 3 including a front case 1 and a rear case 2 is installed in a bathroom and is watertight.
At the lower end of the rear case 2 of the case 3, an opening 4 as a lower ventilation hole is formed. Vent holes 4a,
A mounting portion 5 is provided via a drain hole 4b. In addition, the upper end of the rear case 2 has an opening 6 as an upper ventilation port, and has a mounting portion 7 through a ventilation hole 6a. The mounting portions 5 and 7 are adhered to the bathroom wall 9 with an adhesive 8, and the remote control is fixed in a vertical direction. The openings 4 and 6 divided and arranged in two parts are closed by providing a waterproof gas permeable membrane 10 by bonding or the like, and the waterproof gas permeable membrane 10 allows air inside and outside the case 3 to pass through each other.
Water droplets in the air do not pass from outside the case 3 into the case 3. An operation unit 11 for remotely operating a water heater (not shown) is provided on the front case 1 in a watertight manner, and an input signal to the operation unit 11 is an electronic circuit unit 12 as an electronic component composed of electronic circuit elements and the like. Is input to the water heater. The lead wire 14 for signal transmission is connected to the bush 13 from the rear case 2.
Withdraw with water tight. Thus, the internal air A1 in the remote control case 3 has a case 3 out of the bathroom air A2
The air A3 of the space between the rear case 2 and bathroom walls 9 as part of the A2, to flow into each other only through the waterproof breathable membrane 10.

At the time of bathing, the temperature of the bathroom air A2 rises, and this temperature is transmitted through the front case 1 and the case 3
Is raised. On the other hand, the air A3
It is cooled in the bathroom wall 9 so facing the bathroom wall 9. As a result, convection of the air A1 and A3 occurs, and the air A
3 is cooled, the water content becomes lower than the value determined by the saturated steam pressure at that temperature, and excess water is mainly condensed on the bathroom wall 9 to form water droplets. A space with a lower moisture content than the bathroom air A2
The air A3 flows through the openings 4a and 4 into the case 3. At this time, water droplets contained in the external air A3 in the space are blocked by the waterproof gas permeable membrane 10. Internal air A
1 is heated by heat conduction from the front case 1 and is also heated by heat generated by the electronic circuit section 12 when power is consumed in the case 3. Since the warmed internal air A1 has a lower relative humidity, it absorbs moisture from the water-absorbing substance in the case 3 and moves upward and replaces the air A3 in the space that has flowed in. Through the vent 6a
It goes out to the space where the air A3 exists . A convection action occurs due to a specific gravity difference based on the temperature difference between the airs A1 and A3.
The function of discharging the water inside to the outside is promoted. Water droplets contained in the external air A2 entering from the waterproof breathable membrane 10 are:
The electronic circuit section 12 does not accumulate dew water because the moisture content in the remote controller does not increase excessively even though it is attached to the outer surface 10a of the waterproof gas permeable membrane 10 and is prevented from entering. In addition, a rise in the temperature of the internal air A1 is suppressed by the convection action, and a normal function can be exhibited. Further, the water droplets temporarily attached to the outer surface 10a are discharged to the outside of the case through the drain holes 4b communicating to the outside of the case.

Next, a second embodiment of the present invention will be described with reference to FIG.
Explaining with reference to FIGS.
Along the periphery of the case 17 consisting of
The two sides 16a and 16 are substantially perpendicular to the surface of the back case 16.
b are lined up. Groove 16 between two sides 16a, 16b
A packing 18 is accommodated in the casing c, and an outer peripheral end 15a of the front case 15 is fitted into the groove 16c at the same time as the packing 18 to keep the case 17 watertight. The front case 15 and the rear case 16 are fixed with screws 19, and the rear case 16 has a ventilation pipe 20. The lead wire 14 is drawn out of the rear case 16 through the bush 21 in a watertight manner, a ventilation hole 22 is provided between the bush 21 and the ventilation pipe 20, and the leg 16 d is projected so that the waterproof ventilation membrane 23 is formed.
With air A3 that is watertightly bonded and communicates with the vent hole 22.
The space 24 is formed. Of course, it is isolated in a watertight manner from the interior the space portion 24 and the case 17. An opening 26 as an upper ventilation port is provided above the leg 16d with respect to the lower ventilation port 25 made of a waterproof gas permeable membrane in a portion surrounded by the leg 16d.

An electronic circuit section 12 is provided in a case 17,
It is electrically connected to the water heater by the lead wire 14. The remote control is fixed to the bathroom wall 9 with the adhesive 28 in the up and down directions.

When the temperature of the bathroom air A2 becomes higher than the temperature of the outside air A4 outside the bathroom wall 9, or when the electronic circuit 12 generates heat, the temperature of the internal air A1 in the case 17 rises. On the other hand, the lower portion of the space portion 24 with air A3, since through the outside air A4 through the vent tube 20 by the vent hole 22 has air convection with ambient air A4, air A 3 of this part
Has a low temperature and a water content lower than the value determined by the saturated steam pressure at that temperature. When the temperature difference between the temperature and the air A 3 internal air A1 is convection based on the specific gravity difference occurs occurred, flowing air A 3 is vented waterproof breathable membrane 23 into the case 17.
Water droplets contained in this case air A 3 is cut off, only the gas component passes. Air A 3 which has flown into the case 17 temperature is lower than the internal air A1, is moved to the lower portion of the case 17 for heavy. The inflow of the air A 3, the internal air A1
Flows only from the opening 26 inflow of air A 3 into the space portion 24. Thus, the internal air A1 is sequentially replaced by the external air A4 having a lower temperature than in the previous embodiment, and the temperature can be kept low. When a waterproof gas permeable membrane is provided in the openings, the openings 25 and 26 and the openings 4 and 6 of the above-described embodiment may be used as necessary.
And the number is not limited. However, the opening 4 of the first embodiment has at least the air A in the space to the case 3 .
3 into 4a for introduction and 4b for outflow of extra water droplets,
When sharing both in a narrow space, turbulence in the boundary layer on both the air inflow and outflow, space effectively convection effect without being utilized is not shall be prevented.

[0013]

As described above, according to the present invention, the controller bathroom equipment according to the invention, Quai than its claim 1, under vent
The cool air in the space provided on the back side of the source is sucked in, the high-temperature air inside is exhausted from the upper ventilation port, and a ventilation film is provided to suppress the moisture content of the internal air and the rise in internal temperature, The normal operation of the parts can be maintained.

According to a second aspect of the present invention, the ventilation port is guided to the outside of the bathroom to replace the cold air outside the bathroom with the high-temperature air inside, thereby reducing the internal temperature.
Humidity rise can be further suppressed.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an embodiment of a control device for bathroom equipment according to the present invention.

FIG. 2A is a front view having a partial cross section showing another embodiment of the present invention, and FIG.

FIG. 3A is a front view showing a remote controller of a conventional water heater, and FIG.

[Explanation of symbols]

 3, 17 Case 4, 25 Opening (lower vent) 6, 26 Opening (upper vent) 10, 23 Waterproof breathable membrane 12 Electronic circuit section 20 Vent pipe

Claims (2)

(57) [Claims] 1. A case in which a vertical direction is set in a bathroom to prevent intrusion of moisture, an electronic circuit portion housed in the case, and a top ventilation which is divided and arranged with a height difference on the inner surface of the case. With the mouth and lower vent and this vent,
The space provided on the back side of the case cooled by the wall facing the outside air, and the air inside and outside the case provided in the lower vent, balances the temperature difference and passes each other, and water enters the case from outside the case. And a control device for bathroom equipment having a waterproof breathable membrane through which water drops do not pass. 2. The control device for bathroom equipment according to claim 1, wherein the space provided on the back side of the case has a ventilation pipe communicating with air outside the bathroom.