JP2542606Y2 - Equipment case - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case of a device which accommodates a blower (intake fan) of a combustion device and has an air inlet on a wall surface.

[0002]

2. Description of the Related Art As shown in FIG. 4, a case of a device in which a gas combustion device is housed and which is used outdoors or in a place where water is sprayed such as a piping space of a building has a gallery-like guide plate P on a wall surface H as shown in FIG. A water deflecting plate G for deflecting the suction airflow to prevent water particles from entering the case is mounted behind the intake hole I.

[0003]

However, in the conventional guide plate P and deflection plate G, the degree of deflection of the suction airflow has not been sufficiently considered to remove fine particles of water in the airflow. For this reason, intrusion of relatively large polka dots such as rain can be prevented, but in devices where the flow rate of suction air from the intake hole is large, such as by using a forced blast type combustion device and containing a blower inside the case, It has been difficult to reliably prevent suction of fine water droplets such as water droplets and fog. An object of the present invention is to provide a device case that can efficiently block the entry of water particles into the inside.

[0004]

In the case of the device of the present invention, an intake hole with a guide plate for deflecting intake air is provided on a wall surface of a case in which a blower is mounted, and the intake hole is provided. The inner surface of the wall is opened only at the lower end close to the bottom plate of the case, and the other portion is covered with a deflecting plate which hermetically surrounds it.

[0005]

[Operation and effect of the invention] In the case of the device of the invention, all the air sucked in from the intake hole by the blower is deflected upward by the guide plate, and then deflected downward by the deflection plate to temporarily lower the bottom of the case. And deflects laterally or upward at the lower end of the deflecting plate. This large angle of deflection and a significant reduction in the intake flow velocity beneath the deflecting plate prevents water particles contained in the intake from falling and being sucked into the equipment case. With this structure, suction means such as a blower is mounted inside, and even in the case of a device having a large suction airflow, the fine particles of water can be reliably removed, and water intrusion can be effectively prevented.

[0006]

1 to 3 show a case 1 of a multipurpose hot water supply system.
And a flat box shape made of a metal plate. The front plate 11 of the case 1 is detachable, and a gallery-like horizontally long slit 21 is provided in three rows at an intermediate portion thereof, forming an intake hole 2. The lower edge of the slit 21 is formed by bulging rearward by press molding, and is connected to the introduction portion 31 connected to the lower edge and the guide portion 3 extending upward from the introduction portion 31.
A guide plate 3 is provided. Front plate 11
An exhaust port 12 of the gas-fired device is formed in the upper part.

On the back surface of the front plate 11, an upper end 41 is set above the intake hole 2, and a lower end 42 is provided on the bottom plate 13 of the case 1.
, And a deflection plate 4 that covers the inner surface of the intake hole 2 is welded. The deflecting plate 4 maintains a predetermined gap 5 with the front plate 11 and closes the upper side and both sides of the gap 5,
The lower part is opened to form a vent 51.

In the case 1, gas combustion equipment (not shown) accommodated therein is operated, and air is introduced into the case 1 through the intake hole 2, the gap 5, and the ventilation port 51 by suction of the blower B. It is used for suction, combustion, etc., and exhausted from the exhaust port 12. At this time, fine particles of water such as water droplets and fog contained in the intake air are generated by about 1
At the time of deflection of 80 degrees, it adheres to the surface of the deflecting plate 4 by centrifugal force, and furthermore, when the intake air enters the case 1 from the lower end 42 of the deflecting plate 4, the intake passage area is enlarged, so that the intake flow velocity is greatly reduced. The fine particles of water fall on the bottom plate 13 of the case 1 by gravity. Therefore, intrusion into the case 1 is effectively prevented. The water dropped on the bottom plate 13 of the case 1 is drained from a drain port 61 provided on the bottom plate 13 on the front plate 11 side.

The shape and number of holes can be arbitrarily designed as long as the intake hole 2 is formed of a single hole or a plurality of holes. Fine water droplets inside may be adsorbed. Further, the case of the device of the present invention is also effective when only the electric device is housed without the combustion device inside.

[Brief description of the drawings]

FIG. 1 is a sectional view of an intake hole of a case of a device according to an embodiment of the present invention.

FIG. 2 is a front perspective view of a case of the device shown in FIG. 1;

FIG. 3 is a perspective view of a back surface of an intake hole of a case of the device shown in FIG. 1;

FIG. 4 is a sectional view of an intake hole of a case of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Device case 2 Intake hole 3 Guide plate 4 Deflection plate 13 Bottom plate

Claims (1)

(57) [Scope of request for utility model registration] 1. A wall surface of a case in which a blower is mounted.
Has an intake hole with a guide plate to deflect intake air upward
And the inner surface of the wall surface provided with the intake hole
Open only the lower end near the bottom plate of the case.
A device case that is covered with a deflector plate that hermetically surrounds the outside .