JPH0521582U - Remote controller - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a remote controller that does not malfunction due to changes in atmospheric pressure and has good water sprinkling. A remote controller including a circuit section 4 for remote control, cases 1a and 1b for housing the circuit section 4 and a packing 8 for sealing a mating portion of the cases 1a and 1b has elasticity in a part of the case 1b. The diaphragm 10 having the above is provided to seal a part of the case.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a remote controller installed indoors, particularly in a humid place such as a bathroom.

[0002]

[Prior Art]

 In general, a remote controller that is electrically connected to equipment such as a water heater and installed indoors, especially in a humid place such as a bathroom, has a water and moisture resistance to protect the built-in electronic components from water and humidity. Sex is required. Conventional remote controllers of this type include those shown in FIGS. 4 and 5.

That is, in FIG. 4, reference numeral 19 is a remote control case for accommodating the switch 2, the display lamp 3, etc., and a cord 22 is pulled out from a hole portion 20 of the remote control case 19 through a cord packing 21 in an airtight state. There is. Further, in FIG. 5, the remote control case 24 is provided with a projecting inner wall portion 24a having a stepped hole portion 24b having a large inner diameter and a smaller inner diameter portion larger than the outer diameter of the cord 27, and the cord from the hole portion 24b. 27 is pulled out, and one end of the stay pipe 25 is tightly fixed to the inside of the large inner diameter portion of the hole 24b via the stay packing 31. Further, the cord 27 penetrates through the stapler 25 and is connected to the water heater 50 in the outdoor B. The staple pipe 25 is fixed to the hanging wall 40 by the fastening nut 28 through the base packing 33 and the mounting base 30 in the outdoor area B. 29 is a breathable drip-proof cap attached to the tightening nut 28, and 32 is a breathable rain-proof cover attached to the attachment base 30.

[0004]

[Problems to be solved by the device]

 However, in the conventional technique shown in FIG. 4, since the inside and outside of the remote controller are cut off from each other, the internal airtightness is high and the water sprinkling is good. When the pressure became higher than the internal pressure of the controller, the remote control nameplate 5 was deformed and the switch 2 was turned on, causing a malfunction, and there were major safety issues. In the prior art of FIG. 5, the inside of the remote controller is open to the atmosphere through the hole 24b, the gap between the stay pipe 25 and the cord 27, the drip-proof cap 29, and the rainproof cover 32. In addition, the internal pressure of the remote controller has the advantage that it is not affected by fluctuations in the external pressure. On the other hand, however, it is not economical because it is necessary to attach the drip-proof cap 29 and the rainproof cover 32 to the outdoor side, and it is difficult to connect the remote control case 24 to the stay pipe 25 and the drip-proof cap 29 and the rainproof cover 32. Therefore, there were problems such as not being able to obtain sufficient water sprinkle depending on how well the installation work was done locally.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a remote controller that does not cause a malfunction due to fluctuations in atmospheric pressure and has good water sprinkling.

[0006]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above object will be described below with reference to FIGS. 1 to 3. The present invention provides a resilient diaphragm in a part of a case and seals a part of the case. As a result, there is no infiltration of water droplets, and the pressure difference between the inside and outside of the case is absorbed by the deformation of the diaphragm, eliminating malfunctions. Here, the elasticity of the diaphragm is set to a value that allows the diaphragm to be deformed with a pressure difference smaller than the pressure difference inside and outside the case where the switch is erroneously pressed.

[0007]

[Action]

 According to the present invention, when the external pressure becomes higher than the internal pressure of the remote controller due to the change of temperature by the above means, the diaphragm is pushed and deformed inside the case, and the pressure difference inside and outside the case is kept substantially constant. .. Therefore, it is prevented that the switch is turned on by the pressure difference between the inside and the outside of the case and malfunctions. Since the diaphragm seals the storage space, it acts to prevent the ingress of steam and water droplets.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. In FIG. 1, reference numerals 1a and 1b denote remote control cases in which a printed circuit board 4, a switch 2 fixed to the printed circuit board 4, an indicator lamp 3 and the like are housed. Reference numeral 5 denotes a remote control nameplate made of a thin plate made of plastic or the like that comes into close contact with the surface of the remote control case 1a, through which the switch 2 is pressed. A cord 6 connected to the water heater is pulled out from the remote control case 1a via a cord packing 7, and the remote control cases 1a and 1b are assembled in an airtight state with a case packing 8 sandwiched therebetween. A partially cutout hole is formed in the bottom of the remote control case 1b, and a diaphragm 10 made of an elastic material such as rubber is adhered and sealed in the hole by an adhesive or the like.

FIG. 2 shows another embodiment of the present invention, which is substantially the same in configuration as FIG. 1, but in which the diaphragm 10 is formed integrally with the case packing 8. In this embodiment, since the diaphragm 10 is inside the remote control case 1b, a small hole 9 is provided at the bottom of the remote control case 1b so that the diaphragm 10 comes into contact with the outside air.

FIG. 3 shows another embodiment of the present invention in which the diaphragm 10 is formed integrally with the remote control case 1b, and its elasticity utilizes the elasticity of the plastic material of the case. ..

In the above embodiment, the elasticity is set so that the diaphragm can be deformed with a pressure difference smaller than the pressure difference between the inside and outside of the case where the switch 2 is accidentally turned on. is there.

[0012]

[Effect of the device]

 With the above configuration, the present invention can provide a remote controller that does not malfunction due to the switch being turned on even when the external pressure becomes higher than the internal pressure of the remote controller due to temperature changes and the like, and that the water controller has good water sprinkling. ..

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing another embodiment of the present invention.

FIG. 3 is a cross-sectional view showing another embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional example.

FIG. 5 is a sectional view showing a conventional example.

[Explanation of symbols]

1a. Remote control case 1b. Remote control case 2. Switch 3. Indicator lamp 4. Printed circuit board 5. Remote control name plate 6. Code 7. Cord backing 8. Case packing 9. Hole 10. Diaphragm 19. Remote control case 20. Hole 21. Code packing 22. Code 22a. Cord holder 23. PVC pipe 24. Remote control case 24a. Projecting inner wall portion 24b. Hole 25. Stay pipe 26. PVC pipe 27. Code 28. Tightening nut 29. Drip-proof cap 30. Mounting base 31. Stay packing 32. Rain cover 33. Base packing 40. Wall 50. Water heater

Claims (3)

[Scope of utility model registration request] 1. A remote controller comprising a circuit section for remote control, a case accommodating the circuit section, and packing for sealing a mating section of the case, wherein a resilient diaphragm is provided in a part of the case. A remote controller characterized by sealing a part of the. 2. The remote controller, wherein the diaphragm is formed integrally with the packing. 3. The remote controller, wherein the diaphragm is formed integrally with the case.