JPS61247207A - Dew formation preventor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a dew condensation prevention device used for installing a wall-embedded wiring device.

[Background technology]

Traditionally, wall-mounted wiring devices are either fixed directly into a wall opening while attached to a mounting bracket, or
It is fixed to a wiring box installed in an opening in the wall.

However, when wiring equipment is installed in this way, moisture from behind the wall or inside the wall may enter the wiring equipment and cause condensation, or
There was a problem in that dew condensation outside the wiring equipment would travel along the wiring and enter the equipment.

If condensation forms inside the wiring equipment, it may cause damage to the wiring equipment or electrical accidents such as short circuits.

[Purpose of the invention]

The present invention was made to solve such problems, and an object of the present invention is to provide a dew condensation prevention device that prevents dew condensation on wiring devices.

[Disclosure of the invention]

In order to achieve the above object, the present invention provides a dew condensation prevention device that is placed in an opening provided in a wall and closes the back side of a wiring device installed in the opening, the device being a storage device in which the wiring device is stored. and a cover made of an elastic material having an outward facing flange provided in the opening of the storage part and applied to the edge of the opening in the wall, and made of a hard material that presses the flange of the cover against the edge of the opening in the wall. The gist of the dew condensation prevention device is that the condensation prevention device is provided with a holding member, and a hole into which a wire connected to a wiring device is inserted is provided in the housing portion of the cover.

Below, in FIG. 2, which describes the present invention in detail, what is indicated by 1 is an embodiment of the dew condensation prevention device according to the present invention. As shown in the figure, this dew condensation prevention device 1 includes a cover 2 made of an elastic material such as rubber, and a flat frame-shaped presser member 3 made of a hard material. Cover 2 is
As shown in FIG. 1, it has a storage section 2a in which a wiring device 4 is stored, and an outward flange 2b is provided at the front opening of the storage interior 2a. A cylindrical body 5 is fixed to the bottom of the accommodating part 2a, and a hole in the cylindrical body 5 and a hole passing through the bottom wall of the accommodating part 2a are connected to form a wiring insertion hole 6. This wiring insertion hole 6 has a wiring device 4
Wiring 7 is inserted to connect to. A protrusion 2C is provided on the back surface of the flange 2b over the entire circumference. Presser foot 3
is provided with a hole (fixing hole) 3a into which a fixing screw or the like is inserted.

This dew condensation prevention device is used, for example, in the following manner. A case where a wiring device is installed in an opening 8a provided in a thin wall 8 will be explained. First, the wiring 7 arranged on the back side of the thin wall 8 is passed through the wiring insertion hole 6 of the cover 2, and its tip is connected to the wiring device 4. The remaining wire insertion holes 6 through which the wires 7 are not passed are covered by, for example, covering the tip of the cylindrical body 5.

Wire insertion holes 6 for the number of wires may be provided in advance. Next, the housing portion 2a of the cover is inserted into the opening 8a, and the back surface of the flange 2b is placed against the edge of the opening 8a. A presser member 3 is placed on the surface of the flange 2b, and the cover 2 is fixed to the wall together with the presser member 3 using screws 9.

Then, the flange 2b is evenly pressed against the wall by the holding member 3. The wiring device 4 is attached to the mounting frame 10, and the wiring device 4 is stored in the housing portion 2a of the cover, and both ends of the mounting frame 10 are placed on the upper surface of the presser member 3.

Then, the mounting frame 10 is fixed to the wall 8 with screws 11.

Finally, the plate 12 is fixed to the mounting frame 10 with screws 13 so as to expose the front surface of the wiring device 4.

In this way, when the dew condensation prevention device according to the present invention is used to cover the back side of the wiring device and block the opening in the wall, and the wire is passed through the wire insertion hole provided in the storage section, the back side of the wall is covered. Since little moisture reaches the wiring fixtures, there is little chance of condensation forming on the wiring fixtures. In addition, since the flange of the cover is pressed against the edge of the opening in the wall by the holding material, there is no risk of moisture intruding from a gap created between the cover and the edge of the opening in the wall due to deformation of the cover. , it is possible to always close the opening with good airtightness. In this embodiment, since the protrusion is provided on the edge of the flange, it is possible to cover the wiring device more airtightly without using a sealant between the flange and the wall.

This protrusion is not necessarily required.

In the above example of installing a wiring device, the wiring device was installed in an opening in a thin wall, but if a wiring box as shown in Fig. 3 is installed in an opening in a thick wall, this wiring It goes without saying that even when wiring equipment is installed in a box, similar effects can be obtained by using the dew condensation prevention device according to the present invention.

Note that in the installation example of the wiring device, the cover and the holding member are fixed to the opening in the wall using screws, but they may be fixed by a method other than screwing. In addition, although the presser material and the cover are separate, it is possible to mold the cover integrally with a pre-formed presser material, or to mold the cover integrally at the same time as the presser material (simultaneous molding, etc.). Then, as shown in FIG.
may be fixed to the surface of the flange 2b of the cover. In FIG. 4, the same numbers as in FIGS. 1 and 2 indicate the same parts. A wiring device may be attached to the holding material, or a frame-shaped holding material may be attached to a plate middle frame, etc. (a plate joint frame placed in the gap between the plate and the wall surface, and a plate is fixed to the plate. It may also be used as a plate frame, etc.). If the wall of the storage section is made thin, an effect can be obtained in that even if the wiring device is somewhat larger than the storage section, the wall can be extended and the wiring device can be stored. The dew condensation prevention device according to the present invention can also be used to prevent dust from flowing in and out through an opening in a wall.

〔Effect of the invention〕

The dew condensation prevention device according to the present invention is a dew condensation prevention device that is placed in an opening provided in a wall and blocks the back side of a wiring device installed in the opening, and includes a storage section in which the wiring device is stored, and a storage section. a cover made of an elastic material and having an outward flange that is provided in the opening of the wall and is applied to the edge of the opening in the wall; and a holding member made of a hard material that presses the flange of the cover against the edge of the opening in the wall. Since the housing portion of the cover is provided with a hole into which a wire to be connected to a wiring device is inserted, dew condensation on the wiring device can be prevented.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the condensation prevention device according to the present invention as seen from the back side of the cover, Fig. 2 is an explanatory diagram of the installation of a wiring device using the condensation prevention device, and Fig. 3 is a wiring box FIG. 4 is a partially cut away perspective view of another embodiment of the dew condensation prevention device according to the present invention. 1... Condensation prevention device 2... Cover 2a... Storage section 2b... Flange 3. 3'... Holding material 8.
...Wall 8a...Opening agent Patent attorney Takehiko Matsumoto Figure 4 2b

Claims (2)

[Claims] (1) A dew condensation prevention device that is placed in an opening in a wall and blocks the back side of wiring equipment installed in the opening, and is installed in a storage area where wiring equipment is stored and an opening in the storage area. a cover made of an elastic material and having an outward flange that is applied to the edge of the opening in the wall; and a holding member made of a hard material that presses the flange of the cover against the edge of the opening in the wall; A condensation prevention device that has a hole into which the wires connected to the wiring equipment are inserted. (2) The dew condensation prevention device according to claim 1, wherein the surface of the flange that is in contact with the wall is provided with an elastic protrusion along the edge.