JPH087757Y2 - Sealed structure of closed type remote controller for bathroom - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is a remote controller for remotely operating a bathtub, and in particular, in a remote controller installed in a bathroom, the pressure inside the case is removed. The present invention relates to a sealed structure of a remote controller improved so as to be kept equal to atmospheric pressure and balanced.

[Conventional technology]

FIG. 4 is an exploded perspective view of a conventional sealed remote controller for bathroom.

The electric control function as the remote controller is mainly performed by the remote control board 1.

Since electronic parts and the like are mounted on the remote controller board 1 and does not like moisture, it is housed in the remote controller case 2 and covered with the remote controller cover 3.

The remote control cover 3 is provided with an operation window 3a and a spiral cut 3b so that buttons can be operated from the front side of the remote control cover 3 while maintaining airtightness and watertightness, and a flexible operation name plate 4 is covered thereover. It is attached. The back side of the remote control case is airtightly and watertightly covered with a remote control mounting bracket 5 and a remote control packing 6 via an annular seal packing 8.

The remote control line 7 connected to the remote control board 1 passes through the remote control case 2, the annular seal packing 8, and the remote control mounting bracket 5, and penetrates the remote control packing 6 in an airtight and watertight manner and is drawn out to the back side.

As described above, the remote controller board 1 is sealed in the space surrounded by the remote controller case 2 and the remote controller cover 3.

[Problems to be solved by the device]

The temperature in the bathroom where this type of remote controller is installed changes drastically.

Especially in cold regions and winter, the temperature changes drastically.
Changes of 30 ℃ to ± 40 ℃ occur within a relatively short time.

Therefore, a pressure change occurs due to thermal expansion and contraction of air in the closed space surrounded by the remote control case and the remote control cover.

When the second relative pressure in the space surrounded by the remote control case 2 and the remote control cover 3 becomes positive, the operation nameplate 4 attached to the remote control cover 3 receives the pressure of being pushed out from the inside.

When the above internal pressure is repeatedly applied as the temperature changes repeatedly, a gap is created in the bonding surface between the operation nameplate 4 and the remote control cover 3, and the hermeticity deteriorates.

If the internal pressure becomes a negative pressure in a state where the hermeticity is deteriorated, external moisture is sucked into the remote controller case 2, which causes insulation failure of the remote controller board 1 and contact failure due to corrosion of the contacts.

The present invention has been made in view of the above circumstances, and shuts off the space in which the remote control board is stored from the outside air, and at the same time keeps the pressure of the space in balance with the atmospheric pressure to prevent water from entering. An object is to provide a sealing structure to be obtained.

[Means for solving the problem]

To achieve the above object, the hermetically sealed structure according to the present invention is provided with a front opening and a back opening in a remote control case.
In the present invention, regarding the names of the front surface and the back surface, the side facing the operator is the front surface and the opposite side is the back surface.

A remote control cover is attached to the front opening of the remote control case for sealing, and the back opening is covered with a seal packing for sealing. And the above seal packing is
A member having a diaphragm-shaped portion formed in the center thereof is used.
The back opening in the present invention is meant to include through holes that are smaller than the concerns of general openings.

[Action]

If the opening or through hole that communicates the inside and the outside of the remote control case is covered with a diaphragm seal packing, the inner space of the remote control case is shielded from the atmosphere.

Moreover, since the seal packing is in the shape of a diaphragm, when an attempt is made to create a pressure difference between the inside and outside of the remote control case, the diaphragm-like portion elastically deforms so as to expand toward the low pressure side, and is always kept inside. , Absorb external pressure difference and equalize pressure.

Therefore, there is no risk that the operation name plate will be lifted up by the internal pressure and a gap will be created in the adhesive surface, the airtightness of the storage space of the remote control substrate will be maintained, and the intrusion of moisture will be prevented before and completely.

〔Example〕

FIG. 1 is an exploded perspective view of a bathroom remote controller equipped with an embodiment of a sealing structure according to the present invention.

This embodiment is an improvement of the conventional remote controller shown in FIG. 4 by applying the present invention.
The same reference numerals as those in the drawings denote the same or similar constituent parts as those in the conventional example.

Next, the difference of this embodiment from the conventional example will be described.

The remote control case 2 is provided with a front opening 2a and a rear opening 2b, and the front opening 2a is covered and sealed by a remote control cover 3. Then, the diaphragm-like seal packing 9 is attached so as to cover the back opening 2b.

Second, a plan view of the diaphragm seal packing 9 is shown.
A sectional view is shown in FIG.

A thick portion 9a for sealing is provided around it,
A diaphragm-like portion 9b is formed at the center thereof.
Reference numeral 9c is a through hole for inserting the remote control wire 7 airtightly and watertightly. In the present invention, the diaphragm-shaped portion means a sheet-shaped portion that can be easily elastically deformed by a differential pressure applied to both surfaces, and its shape can be arbitrarily set to a flat plate shape, a corrugated plate shape, or the like.

Further, the central portion means a portion other than the peripheral portion,
It does not necessarily mean the center.

As a result, in the embodiment shown in FIG.
The space in which is stored is sealed off from the atmosphere. When the internal air expands and contracts due to the temperature change, the diaphragm seal packing 9 is correspondingly expanded.
Elastically deforms to constantly balance the internal and external atmospheric pressures.

Therefore, even if the internal air expands, the internal pressure does not rise, and no force is generated to lift the operation nameplate 4 from the remote control cover 3. Further, even if the internal air contracts, the internal pressure does not drop, and since the sticking of the operation nameplate 4 is maintained, there is no risk of inhaling external moisture.

FIG. 3 is a sectional view of an embodiment different from the above. However, similar members corresponding to the constituent members of the embodiment shown in FIG. 1 are denoted by the same drawing reference numbers as in FIG.

10 is a bathtub and 10a is its apron. The apron 10a has a remote control mounting hole 10b. The remote controller of this example is such that the apron 10a is sandwiched between the remote control case 2 and the remote control cover 3, and the mounting hole 10b
Is attached to.

The top opening of the remote control cover 3 is airtight with the operation nameplate 4,
It is watertightly covered, and the rear opening 2b of the remote control case 2 is covered with a diaphragm seal packing 9.

The space S in which the remote control board 1 is housed is sealed as described above, and the atmospheric pressure of the space S is always kept equal to the atmospheric pressure by the action of the diaphragm-like seal packing 9, and the internal and external atmospheric pressures are kept constant. Balance.

Therefore, there is no possibility that the operation name plate 4 will be pushed by the air pressure from the inside, and no gap is created in the adhesive portion between the operation name plate 4 and the remote control cover 3. Therefore, there is no possibility that external moisture will enter the space S.

[Effect of device]

As described above, according to the sealed structure of the bathroom remote controller according to the present invention, the space in which the remote control board is housed is shut off from the outside air, and the pressure in the space is always balanced with the atmospheric pressure. It is possible to prevent the operation name plate from being lifted and peeled off, and to prevent water from entering.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a remote controller having an embodiment of a sealing structure according to the present invention. FIG. 2 (A) is a plan view of the diaphragm seal packing in the above embodiment, and FIG. 2 (B) is a sectional view of the same. FIG. 3 is a sectional view of an embodiment different from the above. FIG. 4 is an exploded perspective view of a conventional remote controller. DESCRIPTION OF SYMBOLS 1 ... Remote control board, 2 ... Remote control case, 2a ... Front opening, 2b ... Rear opening, 3 ... Remote control cover, 4 ... Operation nameplate, 9 ... Diaphragm seal packing.

Claims (1)

[Scope of utility model registration request] 1. A sealed remote controller for a bathroom in which a remote control board is housed in a space surrounded by a remote control case and a remote control cover, wherein a remote control case (2) has a front opening (2a) and a rear opening (2).
b) and the remote control cover (3) is attached to the front opening (2a) to seal the front opening (2a) and the back opening (2).
The seal packing (9) is attached to cover b) and sealed, and a diaphragm-like portion (9b) which is easily deformed by the difference in pressure applied to both surfaces of the seal packing (9) is formed in the central portion of the seal packing (9). The sealed structure of the sealed remote controller for the bathroom, which is characterized by the above.