JPH0566038A - Range hood - Google Patents

Abstract

PURPOSE:To prevent cleaning water from dropping onto a cooking device and prevent a filter from being corroded by forcedly sucking the cleaning water adhering to the filter after the filter is cleaned. CONSTITUTION:There are provided a range hood body 1 including an exhaust fan 2 and a driving motor 3 for the exhaust fan 2, and an endless filter 6 provided movably between the exhaust fan 2 and an air suction inlet 5 of the range hood body 1. Further, there are provided a cleaning nozzle 9a for jetting cleaning water to the endless filter 6 and a drainage reception dish 10 for receiving the cleaning water, and water suction means 14 for sucking the cleaning water adhering to the filter 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood used for exhausting smoke in a kitchen or the like, and more particularly to an automatic regeneration range hood having a cleaning function for a filter provided in the range hood.

[0002]

2. Description of the Related Art Conventionally, a range hood having a built-in exhaust fan has been widely used in order to discharge smoke, oily smoke and the like generated when a range is used.

In such a range hood, a filter for removing oil and fat is provided on the front surface of the hood in order to prevent the oil and fat from adhering to the inside of the fan and the duct, and also to the outer wall due to exhaust air to the outside. Examples of such a structure include, for example, JP-A-64-75836 and JP-A-1.
As disclosed in Japanese Unexamined Patent Publication No. 224025, it is known that a filter is a conveyor type endless filter and an ultrasonic cleaning device is provided for cleaning the filter.

FIG. 6 shows a range hood provided with such an ultrasonic cleaning device. The endless filter 20 is wound around the drive shaft 22 and the driven shaft 23, and when the filter 20 is clogged due to dirt due to long-term use, the drive shaft 22 is rotated by a motor (not shown) in the arrow B direction. The filter 20 is moved and a part of the filter 20 is immersed in the ultrasonic cleaning tank 21. Then, the dirt on the filter 20 can be cleaned and removed by the vibration of the ultrasonic waves in the cleaning tank 21. 24 and 25 are endless filters 2
A guide roller for guiding 0, 26 is a fan, and 27 is a motor for driving the fan.

[0005]

However, in the above-mentioned conventional range hood, the cleaning water adhering to the filter 20 by cleaning is naturally dried, and is sufficiently dried especially when the humidity is high. There is a problem that the washing water is not dropped and is dropped onto cooking equipment under the range hood.
In addition, since moisture remains on the filter for a long time, it also causes corrosion of the metal filter.

The present invention solves such a problem and forcibly absorbs the cleaning water adhering to the filter after cleaning the filter to prevent the cleaning water from dripping on the cooking equipment and to corrode the filter. The purpose is to prevent.

[0007]

In order to achieve the above-mentioned object, a range hood of the present invention includes a range hood main body provided with an exhaust fan and a motor for driving the exhaust fan.
An endless filter movably provided between the exhaust fan and the intake port of the range hood main body, a cleaning nozzle for injecting cleaning water to the endless filter, a drain tray for receiving the cleaning water, and the filter Water absorption means for absorbing the cleaning water attached to the.

[0008]

In the range hood of the present invention, the water adhering to the filter due to washing is absorbed by the water absorbing means and dried in a short time.

[0009]

EXAMPLES The features of the present invention will be specifically described below with reference to the examples shown in the drawings.

FIG. 1 is a partially cutaway front view of a range hood showing an embodiment of the present invention, FIG. 2 is a side sectional view of FIG. 1, and FIG.
FIG. 3 is a perspective view of a conveyor type filter and water absorbing means built in a range hood.

Inside the range hood body 1, an exhaust fan 2 and a motor 3 for driving the exhaust fan 2 are provided in the upper part, and the exhaust fan 2 is connected with an exhaust duct 4 communicating with the outside. ing. Further, an intake port 5 is opened at the bottom of the range hood main body 1, and the exhaust force of the exhaust fan 2 sucks exhaust gas or oil smoke generated in a range (not shown) or the like from the intake port 5.

Reference numeral 6 denotes a conveyor type endless filter provided between the intake port 5 and the exhaust fan 2, both ends of which are wound around a drive shaft 7 and a driven shaft 8, and the drive shaft 7 is rotated by a motor 7a. Then, the filter 6 can be run in the direction of arrow A. This conveyor type filter 6 is, for example, a punching stainless thin plate having flexibility,
It is possible to use an endless ring of steel wire.

Inside the conveyor filter 6, a nozzle mounting pipe 9 is provided over substantially the entire width of the range hood body 1, and a large number of cleaning nozzles 9a are provided on the nozzle mounting pipe 9. The cleaning water is sprayed from the cleaning nozzle 9a toward the filter 6 to remove the dirt attached to the filter 6. The nozzle mounting pipe 9 is connected to the water supply pipe 12 and the water supply valve 13 and further connected to an external water supply system (not shown).

Reference numeral 10 is a drainage tray for receiving drainage generated when the filter 6 is washed, and is provided over the entire width of the range hood body 1 so that the drainage does not drip outside the range hood body 1. And is connected to an external drainage pipe (not shown).

A pair of water-absorbing rollers 14, 14, which are means for absorbing cleaning water attached to the surface of the filter 6, are rotatably and rotatably supported by the range hood body 1 so as to sandwich the filter 6 from above and below. Has been done. As shown in the cross-sectional view of FIG.
A cylindrical water-absorbing material 14b having a high water-absorbing property such as a sponge or a highly water-absorbent resin (Sumikagel) and excellent durability on the outer periphery of 4a.
Is wound, and is arranged with its surface in contact with the filter 6. Therefore, the water absorbing roller 14 also rotates as the filter 6 travels, and the cleaning water adhering to the surface of the filter 6 is absorbed by the water absorbing material 14b of the water absorbing roller 14 to accelerate the drying of the filter 6. In addition,
The water absorbent material 14 is removable from the free roller 14a,
It can be easily replaced when it is deteriorated or when it absorbs a large amount of water and its water absorption performance becomes poor.

The range hood having the above-mentioned structure can be used as a smoke exhausting device during cooking as in the conventional case. Further, when the filter 6 is clogged with dirt such as oil and fat due to long-time use, a filter drive switch (not shown) provided in the operation switch 15 is turned on to remove the dirty part from the lower part of the cleaning nozzle 9a. The filter is moved to the cleaning position, and a cleaning switch (not shown) is turned on to eject cleaning water to clean the dirty portion of the filter 6. Then, the cleaned filter 6 further travels to pass between the water absorbing rollers 14 and 14, and the water absorbing material 14b provided on the water absorbing roller 14 absorbs the cleaning water adhering to the surface of the filter 6.

Instead of the water absorbing roller 14 described above, as shown in FIG. 5, plate-like water absorbing sheets 18, 18 made of a water absorbing material are used.
Can be formed so as to contact the upper and lower surfaces of the filter 6, and the cleaning water adhering to the filter 6 can be absorbed.

[0018]

As described above, according to the present invention, the cleaning water adhering to the filter after cleaning is absorbed by the water absorbing means and is dried in a short time, so that the cleaning water is not dropped on the cooking equipment. In addition to being prevented, the filter can be prevented from corroding.

Further, since the cleaning water can be continuously absorbed by the water-absorbing material, the filter can be continuously cleaned, and the filter is run and cleaned with a small amount of dirt adhering to the intake port. Dirt can be easily removed, and it is possible to always maintain a clean state free from dirt.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a range hood showing an embodiment of the present invention.

FIG. 2 is a side sectional view of the range hood shown in FIG.

FIG. 3 is a perspective view of an endless filter and a water absorption roller incorporated in the range hood shown in FIG.

FIG. 4 is a cross-sectional view of a water absorbing roller.

FIG. 5 is a perspective view of an endless filter and a water absorbing sheet of another embodiment.

FIG. 6 is a side view of a range hood in a conventional example.

[Explanation of symbols]

 1 Range Hood Main Body 2 Exhaust Fan 3 Motor 4 Exhaust Duct 5 Intake Port 6 Endless Filter 7 Drive Shaft 7a Motor 8 Driven Shaft 9 Nozzle Mounting Pipe 9a Cleaning Nozzle 10 Drain Drain 12 Water Supply Pipe 13 Water Supply Valve 14 Water Absorption Roller 14a Free Roller 14b Water Absorption Material 15 Operation switch 18 Water supply sheet

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuyuki Enomoto 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City Totoki Device Co., Ltd. (72) Inventor Haruhiko Saito 2-8-1 Motomura, Chigasaki-shi, Kanagawa Totoki Co., Ltd. Chigasaki Factory

Claims (1)

[Claims] 1. A range hood main body having an exhaust fan and a motor for driving the exhaust fan, an endless filter movably provided between the exhaust fan and an intake port of the range hood main body, and the endless A range hood provided with a cleaning nozzle for injecting cleaning water onto a filter, a drainage tray for receiving the cleaning water, and a water absorbing means for absorbing the cleaning water adhering to the filter.