JP2000154926A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a cleaning liquid for cleaning a blower interior from being scattered outside as splash from a suction opening and an exhaust opening. SOLUTION: A suction side shutter 40 for opening and closing a suction inlet 18 of a blower 10 and an exhaust side shutter 41 for opening and closing an exhaust outlet 17 are provided, and a cleaning liquid is jetted to a blower 10 interior in the state wherein the suction inlet 18 and the exhaust outlet 17 are closed. By this method, the cleaning liquid is prevented from being scattered outside as splash.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a range hood for discharging waste gas generated during cooking to the outside.

[0002]

2. Description of the Related Art As a range hood, a range hood with a filter cleaning device in which a blower and a filter are provided in a hood main body and a device for supplying a cleaning liquid to the filter is known. With this range hood, the fat and oil components in the waste gas generated during cooking adhere to the filter and are captured, so that the fat and oil components discharged outside can be reduced. In addition, the filter can be washed by washing away the oil and fat components attached to the filter with the washing liquid.

[0003]

SUMMARY OF THE INVENTION It is not possible to capture all fats and oils components in waste gas with a filter. The fat and oil components not captured by the filter are sucked into the blower together with the waste gas, and the fat and oil components adhere to the inside of the blower, so that the inside of the blower is contaminated with the fat and oil component.

Therefore, the present inventors have tried to wash the inside of the blower by spraying the washing liquid therein, but various problems have occurred.

That is, in order to enhance the cleaning effect, it is necessary to supply the cleaning liquid to the inside of the blower so as to inevitably flow. In this case, the cleaning liquid becomes a mist and splashes occur. This spray not only flows out from the blower discharge port side but also flows out from the suction port side.Therefore, in order to enhance the cleaning effect, in order to supply the cleaning liquid at a high pressure, the form is complicated and complicated so that the splash does not flow out. In need of. As a result, problems such as an increase in the cleaning surface, an increase in the size of the apparatus, and an increase in cost occur.

As an apparatus for supplying a cleaning liquid to the inside of a blower, a cleaning liquid is stored in a cleaning liquid tank, pumped up by a pump and supplied to the inside of the blower, collected from the inside of the blower into the cleaning liquid tank, and circulated and used for the cleaning liquid. Can be considered. In this case, the cleaning liquid gradually becomes dirty by repeated use. At the same time, various odor components come to be contained in the cleaning liquid, and when the cleaning liquid is supplied at a high pressure by this apparatus, the cleaning liquid comes into contact with air very often, causing an odor. Even if measures such as adding a fragrance to the washing liquid are taken, the strong smell generated when cooking grilled fish or the like cannot be completely eliminated.

Accordingly, an object of the present invention is to provide a range hood which can solve the above-mentioned problems.

[0008]

The first invention is a blower 10
In a range hood for cleaning the inside of the blower with a cleaning liquid, an intake shutter 40 for closing and opening the intake side of the blower 10 and an exhaust shutter 41 for closing and opening the exhaust side of the blower 10 are provided. It is a range hood.

According to a second aspect of the present invention, there is provided a range hood according to the first aspect, wherein the intake side shutter 40 and the exhaust side shutter 41 are connected to be simultaneously moved to a closed position and an open position.

[0010]

According to the first aspect, after the range hood is stopped, the intake side and the exhaust side of the blower 10 are connected to the intake side shutter 4.
0, the inside of the blower is closed by closing with the exhaust side shutter 41, and then the inside of the blower 10 can be cleaned with the cleaning liquid for a certain period of time. Thus, when cleaning the inside of the blower, it is possible to prevent the cleaning liquid from splashing into the room from the intake side through the hood body and splashing into the room, and prevent the cleaning liquid from splashing from the exhaust side into the exhaust duct. Therefore, the cleaning liquid is sprayed at a high pressure using a nozzle or the like, or the cleaning liquid is rotated at a high speed by the fan and transported by the fan to the inside of the blower (fan casing).
A cleaning method having a high cleaning effect in which the cleaning liquid is caused to collide with the cleaning liquid at high pressure becomes possible, so that even if splashing occurs, neither the room side nor the exhaust duct side leaks. As a result, it is possible to freely select a cleaning method (spraying, jetting, flowing down, etc.) suitable for the design and purpose.

Further, since the cleaning is performed in a state where the inside of the blower is sealed, the noise at the time of cleaning is reduced from being transmitted to the outside, and the noise at the time of cleaning can be reduced. Moreover, in the case of the cleaning liquid circulation type, the odor generated during cleaning does not leak to the outside, and the generation of odor during cleaning can be prevented. Further, since the user is not at all aware that the cleaning liquid is sprayed into the blower, there is no fear of water leakage or the like when cleaning with the cleaning liquid.

According to the second aspect of the present invention, the intake side shutter 40 and the exhaust side shutter 41 can be moved by one moving mechanism, so that the structure is simple, the control is easy, and one is closed and the other is open. There is no malfunction such as

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
Is a box shape with the lower surface opened by an upper surface plate 2, a front plate 3, a rear plate 4, and left and right side plates 5. Vertical plate 6 inside hood body 1
An L-shaped partition plate 8 is attached to the horizontal plate 7 to form a blower mounting chamber 9. A blower 10 is mounted in the blower mounting chamber 9.

As shown in FIG. 2, the blower 10 has a fan 12 provided in a fan casing 11, and the fan 12 is driven by a motor 13 attached to the fan casing 11. As shown in FIG. 2, the fan casing 11 is formed by bending a band member made of a steel sheet, a pre-coated steel sheet of a fluororesin, a pre-coated steel sheet of a silicon resin, and the like, and a left and right opening part of a body part 14 having a volute shape. The left and right side plate 1
It is formed in the same shape as the conventional one having the exhaust port 17 closed at 5 and 16. An intake port 18 is formed in the left side plate portion 15.

The fan 12 is a centrifugal fan, for example, a sirocco fan, which draws in air from the center of rotation and discharges it to the outer peripheral side. The inside diameter of the fan 12 is larger than the intake port 18. A turbo fan may be used instead of the sirocco fan.

A cylindrical filter 20 is mounted in the fan casing 11. This filter 20 is located substantially concentrically on the outer periphery of the fan 12. The filter 20 is formed by processing a punching metal, a lath net, or the like, which is generally used as this type of filter, into a cylindrical shape.

The exhaust port 17 is connected to an exhaust duct 22 at an outlet 21 formed in the upper plate 2. The intake port 18 faces the inlet 23 of the vertical plate 6.

A cleaning liquid tank 30 is mounted on the horizontal plate 7 of the partition plate 18, and the cleaning liquid in the cleaning liquid tank 30 is supplied to the inside of the blower 10 (fan casing 11) through a cleaning liquid pump 31 and a water pipe 32. . In this embodiment, the distal end of the water pipe 32 projects from the body 14 toward the filter 20.

A drain port 33 is formed at the bottom of the fan casing 11. The drain port 33 is opened in the cleaning liquid tank 30, and the cleaning liquid sent from the water pipe 32 into the blower 10 passes through the filter 20 through the fan 20. It collects at the bottom of the casing 11 and flows down from the drain port 33 into the cleaning liquid tank 30 to be collected. Thus, a cleaning liquid circulation type filter cleaning device is formed.

As shown in FIGS. 2 and 3, the blower 10 is provided with an intake shutter 40 for opening and closing the intake port 18 and an exhaust shutter 41 for opening and closing the exhaust port 17.
As shown in FIG. 4, the intake side shutter 40 is
The exhaust-side shutter 41 is wider and longer than the exhaust port 17, and the intake-side shutter 40 and the exhaust-side shutter 41 are integrally displaced in the left-right direction. To form a hook shape. That is, since the positions of the intake port 18 and the exhaust port 17 of the fan casing 11 are shifted in the left-right direction, the positions are shifted by the position shift.

A guide member 42 is fixed to the opening edge of the exhaust port 17 of the fan casing 11. This guide member 42
Is a flat rectangular box shape in which a rectangular lower plate 43 and a rectangular upper plate 44 are connected with an end plate 45 at intervals.
3. An opening 46 having the same size as the exhaust port 17 is formed in the upper plate 44. The periphery of the opening 46 of the lower plate 43 is fixed to the opening of the exhaust port 17 of the fan casing 11, and the guide member 42 is connected to the fan casing 1 as shown in FIG.
1, the guide member 42 is opposed to the inner surface of the upper plate 2 of the hood main body 1. An exhaust-side shutter 41 is movably provided between the lower plate 43 and the upper plate 44, and the intake-side shutter 40 protrudes from the long hole 47 of the end plate 45 and faces the left side plate 15 of the fan casing 11.

Therefore, when the intake side shutter 40 and the exhaust side shutter 41 are moved to the left as shown in FIGS. 5 and 6, the intake port 18 and the exhaust port 17 are closed.
As shown in FIGS. 7 and 8, when the intake side shutter 40 and the exhaust side shutter 41 are moved rightward, the intake port 18 and the exhaust port 17 are opened.

A nut member 50 is fixed to the exhaust side shutter 41 as shown in FIG.
Project below a slit-shaped opening 51 formed in the lower plate 43 of the guide member 42. As shown in FIG. 5, a shutter motor 52 is attached to the lower plate 43, and a feed screw rod 53 rotated by the shutter motor 52 is provided.
Are screwed to the nut member 50. Thereby, the feed screw rod 53 is rotated forward by the shutter motor 52,
When reversed, the intake side shutter 40 and the exhaust side shutter 4
1 moves to the closed position and the open position as described above.

Next, the operation will be described. After using the range hood, the shutter motor 52 is driven to move the intake-side shutter 40 and the exhaust-side shutter 41 to the positions shown in FIGS. 5 and 6, and the intake port 18 (that is, the intake side) and the exhaust port 17 (exhaust side). Are closed, and the inside of the blower (the inside of the fan casing 11) is sealed. Thereafter, the cleaning liquid pump 31 is driven to supply the cleaning liquid in the cleaning liquid tank 30 to the water supply pipe 3.
In step 2, the filter 20 is jetted to the filter 20 for a certain time. Thereby, the oil and fat components adhering to the inside of the filter 20 and the fan casing 11 (the inside of the blower) are washed with the washing liquid. The cleaning liquid after cleaning flows down from the drain port 33 into the cleaning liquid tank 30 and is collected. At this time, the fan 12 may be rotated at a low speed.

Since the intake port 18 and the exhaust port 17 are closed at the time of cleaning as described above, the cleaning liquid is
Water does not splash from the exhaust port 17 and scatter outside. In the case of the cleaning liquid circulation system, the odor generated during cleaning does not leak to the outside. Transmission of the washing sound to the outside can be reduced.

Also, since the intake side shutter 40 and the exhaust side shutter 41 are integrally connected, one moving mechanism (the above-described nut member 50, shutter motor 52, feed screw rod 53) for moving them is provided. can do.

After the cleaning, the intake side shutter 40 and the exhaust side shutter 41 are moved to open the intake port 18 and the exhaust port 17.

Next, a second embodiment will be described. As shown in FIG. 9, the intake side shutter 40 is reciprocally movable in the front-rear direction between a position where the intake port 18 is closed and a position where the intake port 18 is opened, and a nut member 60 is attached to the intake side shutter 40. The feed screw rod 62 is driven by the intake side shutter motor 61.
Can be rotated forward and backward, and the feed screw rod 62 is screwed into the nut member 60 to provide an intake-side shutter moving mechanism.

The exhaust-side shutter 41 is attached to the exhaust duct 22 near the exhaust port 17 by a shaft 63 so as to swing freely between a closed position and an open position, and the shaft 63 is rotated forward and backward by an exhaust-side shutter motor 64. To do. Note that the intake side shutter 41 is in contact with the upper surface plate 2 so as not to rotate.

Next, the operation will be described. After stopping the range hood, the intake side shutter motor 61 and the exhaust side shutter motor 64 are simultaneously driven to close the intake port 18 with the intake side shutter 40 and close the exhaust duct 22 near the exhaust port 17 with the exhaust side shutter 41. It is virtually exhaust port 1
7 is closed. In this state, after the cleaning, the inside of the blower is cleaned by injecting the post-cleaning to the filter 20 in the same manner as described above. After the cleaning, the intake-side shutter motor 61 and the exhaust-side shutter motor 64 are simultaneously reversely driven to simultaneously drive the intake port 18 and the exhaust port 17.
To release.

Although the filter 20 is mounted inside the fan casing 11 in each of the above embodiments, the filter 20 may be mounted on the upstream side of the intake port 18 as a vertical plate. In this case, the adhering fat component may be washed by flowing the washing liquid along the filter 20. Further, the inner surface of the body 14 of the fan casing 11 may be formed with irregularities so as to have a function of a filter for capturing oil and fat components. Further, the cleaning liquid such as tap water may be jetted into the blower without using the cleaning liquid tank 30 for cleaning.
That is, the present invention can be applied to a range hood in which the inside of the blower is cleaned with a cleaning liquid regardless of the position of the filter, the presence or absence of the filter, and the type of cleaning.

[0032]

According to the first aspect of the present invention, after the range hood is stopped, the intake side and the exhaust side of the blower 10 are closed by the intake side shutter 40 and the exhaust side shutter 41 so that the inside of the blower is sealed. Then, the inside of the blower 10 can be cleaned with the cleaning liquid for a certain time. Thus, when cleaning the inside of the blower, it is possible to prevent the cleaning liquid from splashing into the room from the intake side through the hood body and splashing into the room, and prevent the cleaning liquid from splashing from the exhaust side into the exhaust duct. Therefore, a cleaning method with a high cleaning effect, in which the cleaning liquid is sprayed at a high pressure using a nozzle or the like, or the cleaning liquid is rotated at a high speed and the cleaning liquid is caused to collide with the inside of the blower (fan casing) at a high speed by transporting the fan, is possible. Therefore, even if splashing occurs, there is no leakage to both the indoor side and the exhaust duct side. As a result, it is possible to freely select a cleaning method (spraying, jetting, flowing down, etc.) suitable for the design and purpose.

Further, since the cleaning is performed in a state where the inside of the blower is sealed, the noise at the time of cleaning is reduced to be transmitted to the outside, and the noise at the time of cleaning can be reduced. Moreover, in the case of the cleaning liquid circulation type, the odor generated during cleaning does not leak to the outside, and the generation of odor during cleaning can be prevented. Further, since the user is not at all aware that the cleaning liquid is sprayed into the blower, there is no fear of water leakage or the like when cleaning with the cleaning liquid.

According to the second aspect of the present invention, the intake side shutter 40 and the exhaust side shutter 41 can be moved by one moving mechanism, so that the structure is simple and the control is easy.
Moreover, there is no malfunction such as one being closed and the other being opened.

[Brief description of the drawings]

FIG. 1 is a perspective view of a range hood with a shutter removed.

FIG. 2 is a vertical sectional view of a range hood with a shutter attached.

FIG. 3 is a front view of the range hood with a vertical plate removed.

FIG. 4 is an exploded perspective view of a fan casing, a guide member, and a shutter.

FIG. 5 is a front view of the blower with a shutter closed.

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a front view of the blower with a shutter opened.

FIG. 8 is a plan view of FIG. 7;

FIG. 9 is a longitudinal sectional view of a range hood showing a second embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hood main body, 10 ... Blower, 11 ... Fan casing, 12 ... Fan, 17 ... Inlet, 18 ... Inlet, 20
... Filter, 22 ... Exhaust duct, 30 ... Washing liquid tank, 3
DESCRIPTION OF SYMBOLS 1 ... Cleaning liquid pump, 32 ... Water pipe, 40 ... Intake side shutter, 41 ... Exhaust side shutter, 42 ... Guide member, 5
2: shutter motor, 61: intake side shutter motor, 64: exhaust side shutter motor.

Claims (2)

[Claims] 1. A range hood for cleaning the inside of a blower 10 with a cleaning liquid, comprising: an intake side shutter 40 for closing and opening the intake side of the blower 10; and an exhaust side shutter 41 for closing and opening the exhaust side of the blower 10. Range hood characterized by being provided. 2. The range hood according to claim 1, wherein the intake side shutter 40 and the exhaust side shutter 41 are connected and simultaneously moved to a closed position and an open position.