JPH10132351A - Filter cleaning apparatus for range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfactorily clean a filter. SOLUTION: A cleaning liquid conduit 24 is provided over an upper edge left and right whole length of a filter 11, and a plurality of cleaning liquid supply holes 32 are formed in a bottom of the cleaning liquid conduit 24. The cleaning liquid is supplied to the cleaning liquid conduit 24 with a cleaning liquid supply pump 27 with a push button being turned on and is flowed along the filter 11 whereby a cleaning liquid film is formed, and then a fan 16 is driven to made oil in air collide against the cleaning liquid film and hence the oil is prevented from adhering to the filter 11. The electric motor 26 is started to be driven after the one signal of the push button of the fan 16 is inputted to flow the cleaning liquid along the filter 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning a filter in a range hood which collects smoke, steam, odor and the like generated during cooking and discharges it to the outside.

[0002]

2. Description of the Related Art As a range hood, for example, Japanese Unexamined Patent Publication No.
The thing shown in 0-42532 gazette is known. Specifically, a plurality of baffle plates are attached to an intake air passage that connects the blower and the intake port, and the oil smoke flowing through the intake air passage is forcibly bent by the baffle plate, so that the oil particles in the oil smoke are baffled. And adhere to the inner wall of the air passage to separate and remove oils and fats. Before driving the blower, a cleaning liquid is sprayed on the baffle plate or the inner wall of the air passage with a cleaning nozzle to form a cleaning liquid film, and after stopping the blower, the cleaning liquid is sprayed again to wash off oils and fats adhering during driving of the blower. is there.

[0003] With this range hood, since the cleaning liquid film makes it difficult for oil and fat to adhere to the baffle plate and the inner wall of the air passage,
By spraying the cleaning liquid again after the blower stops, it can be easily washed off and cleaned.

[0004]

Since the above-mentioned range hood sprays the cleaning liquid onto the baffle and the inner wall of the air passage, it is difficult to form a uniform cleaning liquid film on the baffle and the inner wall of the air passage.
For this reason, a large amount of fats and oils may adhere to the baffle plate or a part of the inner wall of the air passage while the blower is being driven, and the cleaning liquid may not be sufficiently cleaned even if the cleaning liquid is sprayed again after the blower is stopped.

Accordingly, an object of the present invention is to provide a range hood filter cleaning device capable of solving the above-mentioned problems.

[0006]

According to a first aspect of the present invention, there is provided a range hood in which the inside of a hood body 1 is divided into a suction portion 12 and a discharge portion 13 by a filter 11 and air in the discharge portion 13 is discharged by a blower 16. A cleaning liquid gutter 24 is provided over the entire length of the upper edge of the filter 11 and a plurality of cleaning liquid supply holes 32 are formed at the bottom of the cleaning liquid gutter 24 at intervals in the left and right direction of the filter 11. A cleaning liquid receiving tray 20 is attached to the entire length of the left and right sides of the unit, a cleaning liquid tank 22 is provided below an outlet 23 of the cleaning liquid receiving tray 20, and the cleaning liquid in the cleaning liquid tank 22 is supplied by a cleaning liquid supply pump 27 driven by an electric motor 26. It is configured to supply to the cleaning liquid gutter 24, and while the electric motor 26 is driven for a set time before the blower 16 is driven, the electric motor 26 is driven after the blower 16 is stopped. The dynamic motor 26 is a filter cleaning apparatus of the hood, characterized in that it has to be driven a predetermined time.

According to a second aspect of the present invention, the interior of the hood body 1 is divided into a suction portion 12 and a discharge portion 13 by a filter 11 and the discharge portion 1 is formed.
In the range hood for discharging the air inside 3 by the blower 16, a cleaning liquid gutter 24 is provided over the entire left and right upper edges of the filter 11, and a cleaning liquid supply hole 32 is provided at the bottom of the cleaning liquid gutter 24 at intervals in the left and right direction of the filter 11. And a washing liquid receiving tray 20 is attached over the entire length of the lower edge of the filter 11 on the left and right sides.
A cleaning liquid tank 22 is provided below the cleaning liquid supply tank 3, and the cleaning liquid in the cleaning liquid tank 22 is supplied to the cleaning liquid gutter 24 by a cleaning liquid supply pump 27 driven by an electric motor 26, and before the blower 16 is driven. The electric motor 26 is driven for a first set time, and after the electric motor 26 stops, the electric motor 14 of the blower 16 is driven after a lapse of a second set time. After the blower 16 stops, a third set time elapses. A filter cleaning device for a range hood, wherein the electric motor 26 is driven for a predetermined time later.

According to a third aspect, in the first or second aspect, the electric motor 26 is provided after the blower 16 is stopped.
Is driven for a predetermined time set by a timer, and the timer can be arbitrarily set by a user.

[0009]

According to the first aspect of the present invention, before the blower 16 is driven, the electric motor 26 is driven to supply the cleaning liquid in the cleaning liquid tank 22 to the cleaning liquid gutter 24, and the upper edge of the filter 11 is supplied from the cleaning liquid supply hole 32. Then, the cleaning liquid flows down the filter 11 to form a cleaning liquid film a on the filter 11.

After that, the blower 16 is driven to discharge air to the outside. The oil and fat in the air collides with the cleaning liquid film a of the filter 11 and most of the oil and fat b is removed from the filter 1.
Drops without attaching to 1.

After the blower 16 is stopped, the electric motor 26 is driven again, and the cleaning liquid flows along the filter 11 to clean the filter 11 as described above.

Because of this, the cleaning liquid flows along the filter 11 before the blower 16 is driven, and the cleaning liquid film a is uniformly formed on the filter 11.
During the operation of the filter 6, the oil and fat in the air is almost completely removed from the filter 11.
Since the cleaning liquid flows along the filter 11 after the blower 16 is stopped, the filter 11 can be sufficiently cleaned.

According to the second invention, the electric motor 14 is driven to drive the blower 16 when the second set time has elapsed after the electric motor 26 is stopped. Blower 1 after falling down
4 starts driving, and the cleaning liquid flowing down along the filter 11 is not sucked into the blower.

Further, after the third set time has elapsed after the blower 16 has stopped, the electric motor 26 starts driving, and the cleaning liquid does not flow along the filter 11 when the fan 15 of the blower 16 is rotating by inertia. Therefore, the cleaning liquid is not sucked into the blower 16.

According to the third aspect of the present invention, the user can arbitrarily set the time during which the electric motor 26 is driven, so that the filter 11 can be cleaned for a time corresponding to the type of cooking, and the filter 11 can be efficiently cleaned.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a hood 1 has a rear hood 2 and a front hood 3. The rear hood body 2 includes a pair of side plates 5 and a top plate 6 that face the rear plate 4.
It has a box-like shape with the lower part and the front part opened. The front hood body 3 includes a front plate 7 and a pair of opposed side plates 8.
And a top plate 9 to form a box having a lower portion and a rear portion opened.

The rear hood 2 and the front hood 3 are connected to form a hood 1. The hood body 1 has a box shape with an open lower part.

A partition plate 10 is mounted between lower portions of the pair of side plates 5 of the rear hood body 2. This partition plate 10
A filter 11 is attached vertically between the top plate 6 and the top plate 6. The inside of the hood body 1 is divided into a suction part 12 and a discharge part 13 which are opened at a lower part with a filter 11 as a boundary.

A blower 16 provided with a fan 15 rotated by an electric motor 14 is provided in the discharge section 13. The suction section of the blower 16 opens to the discharge section 13, and an exhaust duct is connected to the discharge side. I have.

Thus, when the fan 15 is rotated by the electric motor 14, air is sucked from the suction portion 12. The sucked air flows into the discharge unit 13 through the filter 11. The air flowing into the discharge unit 13 is discharged from the discharge side of the blower 16 to a discharge duct.

A washing liquid receiving tray 20 is mounted on the upper surface of the partition plate 10. A bracket 21 for supporting a lower portion of the filter 11 is attached to the washing liquid receiving tray 20. A cleaning liquid tank 22 is attached to the lower surface of the partition plate 10. As a result, the cleaning liquid that has flowed down along the filter 11 falls into the cleaning liquid receiving tray 20, and flows into the cleaning liquid tank 22 from the outlet 23.

A cleaning liquid gutter 24 is attached to the rear top plate 6. The upper part of the filter 11 is attached to the cleaning liquid gutter 24 via a bracket 25. The washing liquid tank 2
The cleaning liquid in 2 is discharged to a cleaning liquid supply pipe 28 by a cleaning liquid supply pump 27 driven by an electric motor 26, and is supplied to the cleaning liquid gutter 24 by the cleaning liquid supply pipe 28.

As shown in FIG. 2, the filter 11 is mounted between a pair of side plates 5 facing each other. The cleaning liquid gutter 24 has a substantially planar rectangular shape whose upper part is opened by the bottom plate 30 and the peripheral wall plate 31. The cleaning liquid gutter 24 is attached to the upper part of the filter 11 over the entire length in the longitudinal direction, and the cleaning liquid supply pipe 28 is attached to the longitudinal center of the rear part 31 a of the peripheral wall plate 31.

The bottom plate 30 is bent in a substantially stepped shape so that the front portion 30a is lower than the rear portion 30b. The cleaning liquid gutter 24 has a deeper front portion and a shallower rear portion.

A cleaning liquid supply hole 32 is provided at the bottom of the cleaning liquid gutter 24 (close to the front of the bottom plate 30).
Are formed at intervals in the left-right direction.

An operation panel 40 is attached to the front plate 7 of the front hood 3. The operation panel 40 includes an operation button 41 and a stop button 42 as shown in FIG. When the operation button 41 is turned on, an operation signal is input to the controller 43, and the controller 43 drives the electric motor 26 for the time set by the first timer 44. Electric motor 2
When the time set by the second timer 45 elapses after 6 stops, the electric motor 14 of the blower starts to be driven.

When the stop button 42 is turned on, a stop signal is input to the controller 43, and the controller 43
The electric motor 14 is stopped. The controller 43 starts driving the electric motor 26 of the cleaning liquid supply pump 27 after the time set by the third timer 46 has elapsed after the stop signal is input, and stops the electric motor 26 when the predetermined time set by the fourth timer 47 has elapsed. I do.

Next, the operation will be described. When the operation button 41 is turned on, the electric motor 26 is driven for the time set by the first timer 44, and the cleaning liquid in the cleaning liquid tank 22 is supplied to the cleaning liquid gutter 24 via the cleaning liquid supply pipe 28 by the cleaning liquid supply pump 27.

The cleaning liquid in the cleaning liquid gutter 24 is supplied to the cleaning liquid supply hole 3.
The cleaning liquid film a is uniformly formed on the filter 11 as shown in FIG. 4 by being dropped and supplied to the upper edge portion of the filter 11 and flowing down along the filter 11. The first
The set time of the timer 44 is a time until the cleaning liquid spreads on the surface of the filter 11, and is, for example, 5 to 15 seconds.

When the time set by the first timer 44 elapses, the electric motor 26 stops. When the time set by the second timer 45 elapses after the electric motor 26 stops, the electric motor 14 of the blower 16 is driven to drive the blower 16.

As described above, after the electric motor 26 is stopped, the cleaning liquid in the cleaning liquid gutter 24 drops, and the cleaning liquid does not flow down along the filter 11. Then, the electric motor 14 is driven to operate the blower. Since the 16 is driven, the cleaning liquid flowing down along the filter 11 is not sucked into the blower 16.

After the electric motor 26 stops, the cleaning liquid gutter 2
The time until all of the cleaning liquid in 4 falls and flows down along filter 11, for example, 3 to 5 seconds, is set in second timer 4.
The set time is 5.

When the blower 16 is driven, air is sucked in from the suction portion 12, the sucked air is sucked into the discharge portion 13 through the filter 11, and discharged to the outside through an exhaust duct or the like. The fat b in the air sucked in at this time is shown in FIG.
As shown in (2), the oil collides with the cleaning liquid film a of the filter 11, and most of the fats and oils b fall without adhering to the filter 11.

When the blower 16 is being driven, the stop button 4
When 2 is turned on, the electric motor 14 of the blower 16 stops and the blower 16 stops.

The third timer 4 after the blower 16 has stopped
When the time set in 6 elapses, the fan 15 that has been rotating by inertia stops, and the electric motor 26 starts driving again. Thus, the cleaning liquid in the cleaning liquid tank 22 is supplied to the cleaning liquid gutter 24 through the cleaning liquid supply pipe 28 by the cleaning liquid supply pump 27.

As described above, since the cleaning liquid does not flow along the filter 11 when the fan 15 is rotating by inertia immediately after the blower 16 stops operating, the cleaning liquid is not sucked into the blower 16.

Since the time until the fan 15 rotating by inertia substantially stops is about 10 to 15 seconds, the time set by the third timer 46 is, for example, about 10 to 1 second.
5 seconds.

The cleaning liquid in the cleaning liquid gutter 24 falls from each cleaning liquid supply hole 32 to the upper edge of the filter 11 and flows down along the filter 11 to clean a small amount of oil and fat b attached to the filter 11 together with the cleaning liquid film a. I do.

The washing liquid flowing along the filter 11 falls into the washing liquid receiving tray 20, and is collected into the washing liquid tank 22 from the outlet 23.

When a predetermined time set by the fourth timer 47 elapses, the electric motor 26 stops, and the cleaning liquid supply pump 2
7 stops. As a result, the cleaning liquid is not supplied into the cleaning liquid tank 24, and the cleaning of the filter 11 ends when the entire amount of the cleaning liquid in the cleaning liquid tank 24 drops.

The fourth timer 47 may be provided on the operation panel 40 as shown in FIG. 6 so that the user can set it arbitrarily.

In this way, the user can set the driving time of the electric motor 26 (the cleaning time of the filter 11) according to the type of cooking (the state of generation of oily smoke). For example, when the generation of oil smoke is small in general cooking, the setting time of the fourth timer 47 is set to be short, for example, 2 to 3 minutes.
In the case of cooking in which oil smoke such as grilled fish is frequently generated, the set time of the fourth timer 47 is set to be long, for example, 5 minutes.

[0043]

According to the first aspect of the present invention, the electric motor 26 is driven before the blower 16 is driven to supply the cleaning liquid in the cleaning liquid tank 22 to the cleaning liquid gutter 24, and the cleaning liquid is supplied from the cleaning liquid supply hole 32 to the upper surface of the filter 11. The cleaning liquid falls to the edge, and the cleaning liquid flows down along the filter 11 to form a cleaning liquid film a on the filter 11.

Thereafter, the blower 16 is driven to discharge air to the outside. The oil and fat in the air collides with the cleaning liquid film a of the filter 11 and most of the oil and fat b is removed from the filter 1.
Drops without attaching to 1.

After the blower 16 is stopped, the electric motor 26 is driven again, and the cleaning liquid flows along the filter 11 to clean the filter 11 as described above.

As described above, before the blower 16 is driven, the cleaning liquid flows along the filter 11 and the cleaning liquid film a is formed uniformly on the filter 11.
During the operation of the filter 6, the oil and fat in the air is almost completely removed from the filter 11.
Since the cleaning liquid flows along the filter 11 after the blower 16 is stopped, the filter 11 can be sufficiently cleaned.

The cleaning liquid supply pump 27 is connected to the cleaning liquid gutter 2.
Since only the cleaning liquid is supplied into the pump 4, a pump having a low discharge pressure and a small discharge amount can be used, so that the cleaning liquid supply pump 27 is inexpensive.

Further, since the washing liquid after washing the filter 11 is received by the washing liquid receiving tray 20 and collected in the washing liquid tank 22,
The washing solution can be used repeatedly.

After the blower 16 has stopped, the electric motor 2
Since the drive of 6 starts the cleaning of the filter 11, the filter 11 can be automatically cleaned every time the blower 16 stops without the user of the range hood performing the filter cleaning operation.

According to the second aspect of the present invention, the electric motor 14 is driven to drive the blower 16 after the second set time has elapsed after the electric motor 26 is stopped. Blower 1 after falling down
4 starts driving, and the cleaning liquid flowing down along the filter 11 is not sucked into the blower.

Further, after the third set time has elapsed after the blower 16 has stopped, the electric motor 26 starts driving, and the cleaning liquid does not flow along the filter 11 when the fan 15 of the blower 16 is rotating by inertia. Therefore, the cleaning liquid is not sucked into the blower 16.

According to the third aspect of the present invention, the user can arbitrarily set the time during which the electric motor 26 is driven, so that the filter 11 can be cleaned for a time corresponding to the type of cooking, and the filter 11 can be cleaned efficiently.

[Brief description of the drawings]

FIG. 1 is a sectional view of a range hood showing an embodiment of the present invention.

FIG. 2 is a plan view of a cleaning liquid gutter mounting portion.

FIG. 3 is a control circuit diagram.

FIG. 4 is an explanatory diagram of a type of a cleaning liquid film.

FIG. 5 is an explanatory view of collision of oil and fat with a cleaning liquid film.

FIG. 6 is a control circuit diagram showing another embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Hood body, 11 ... Filter, 12 ... Suction part, 13
... discharge unit, 16 ... blower, 20 ... cleaning liquid receiving tray, 22 ... cleaning liquid tank, 23 ... discharge port, 24 ... cleaning liquid gutter, 26 ... electric motor, 27 ... cleaning liquid supply pump, 32 ... cleaning liquid supply hole.

Claims (3)

[Claims] 1. A range hood in which the inside of a hood body 1 is partitioned into a suction portion 12 and a discharge portion 13 by a filter 11, and air in the discharge portion 13 is discharged by a blower 16. And a cleaning liquid supply hole 3 is provided at the bottom of the cleaning liquid gutter 24.
A plurality of filters 2 are formed at intervals in the left-right direction of the filter 11, a cleaning liquid receiving tray 20 is attached over the entire left and right entire lower edge of the filter 11, and a cleaning liquid tank 22 is provided below an outlet 23 of the cleaning liquid receiving tray 20. The cleaning liquid in the cleaning liquid tank 22 is configured to be supplied to the cleaning liquid gutter 24 by a cleaning liquid supply pump 27 driven by an electric motor 26, and the electric motor 26 is driven for a set time before the blower 16 is driven. A filter for cleaning the range hood, wherein the electric motor 26 is driven for a predetermined time after the blower 16 is stopped. 2. A range hood in which the inside of the hood body 1 is partitioned into a suction portion 12 and a discharge portion 13 by a filter 11, and the air in the discharge portion 13 is discharged by a blower 16. And a cleaning liquid supply hole 3 is provided at the bottom of the cleaning liquid gutter 24.
A plurality of filters 2 are formed at intervals in the left-right direction of the filter 11, a cleaning liquid receiving tray 20 is attached over the entire left and right entire lower edge of the filter 11, and a cleaning liquid tank 22 is provided below an outlet 23 of the cleaning liquid receiving tray 20. The cleaning liquid in the cleaning liquid tank 22 is supplied to the cleaning liquid gutter 24 by a cleaning liquid supply pump 27 driven by an electric motor 26, and the electric motor 26 is operated for a first set time before the blower 16 is driven. After the electric motor 26 is stopped, the electric motor 14 of the blower 16 is driven after a lapse of a second set time after the electric motor 26 is stopped, and the electric motor 26 is driven for a predetermined time after the lapse of a third set time after the blower 16 is stopped. A range hood filter cleaning device characterized in that: 3. The range hood according to claim 1, wherein the electric motor 26 is driven for a predetermined time set by a timer after the blower 16 stops, and the timer can be arbitrarily set by a user. Filter cleaning device.