JPH08291928A - Ventilating device - Google Patents

Abstract

PURPOSE: To make it possible to decompose and vaporize adhered cooking oil at a normal temperature with high efficiency and in a short time by placing a catalyst to be carried on the surface of a cylindrical filter and the inner surface of a hood and turning the cylindrical filter and emitting and reflecting an excitation light and thereby exciting and activating the catalyst. CONSTITUTION: A catalyst 19 which decomposes and vaporizes adhered cooking oil, is installed to the surface of a cylindrical filter 14 while the catalyst 19 is installed to the surfaces of a motor 5 and a fan 6 and a fan casing and a hood main body 1 and the inner surface of a space area 2. The cylindrical filter 14 is turned with the motor 6 and a near ultraviolet light emitting lamp 21 is lit up so that the excitation light may by reacted with the catalyst 19 installed on the surface of the cylindrical filter 14, thereby decomposing and vaporizing oil drops 13 deposited on the surface of the cylindrical filter 14 at an environment temperature. Since a reflexive board 23 is of a parabolic shape and the near ultraviolet light lamp 21 is installed to the focal point of the parabola, an excitation light is emitted as a parallel light and cast on the surface of the cylindrical filter 14 concentratedly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilator for domestic kitchens or for business use, and to a ventilator having a self-oil purifying function for preventing an unpleasant condition due to oil stains such as oil smoke. .

[0002]

2. Description of the Related Art In recent years, due to increased hygiene, a feeling of cleanliness, and labor saving, a ventilation device for a kitchen or a business at home is always maintained in a clean and clean state due to self-decomposition of oil stains. Is required.

Conventionally, this type of ventilator has been disclosed in
A configuration as shown in JP-A-151029 was common. The configuration will be described below with reference to FIG.

As shown in the figure, a fan motor 102 is provided inside a main body 101, and an intake port 103 of the main body 101 is provided.
Is provided with a filter 104. An exhaust port 105 is provided on the rear surface of the main body 101, and a far infrared heat source 106 is provided inside the main body 101. A heating catalyst 107 is applied to the filter 104.

In the above structure, when the far-infrared heat source 106 is electrically heated, the filter 104 is heated and the heating catalyst 1 is heated.
Due to the action of 07, the cooking oil attached to the surface of the filter 104 is catalytically decomposed and vaporized.

[0006]

In such a conventional ventilator, it is necessary to raise the temperature of the filter 104 to a high temperature of 300 ° C. or higher in order to activate the heating catalyst 107.
There was a problem of safety against fires and burns, and large energy loss.

The present invention solves the above problems, and a first object thereof is to provide a ventilator capable of performing a self-cleaning function at room temperature.

A second object is to decompose and vaporize the adhering cooking oil efficiently and in a short time.

A third object is to prevent dust from adhering to the filter. A fourth object is to suppress the leakage of the excitation light, which serves as the excitation means, to the outside and improve the safety.

A fifth object is to facilitate replacement of the excitation means. A sixth object is to facilitate cleaning of oil stains on a portion that the excitation means cannot reach.

[0011]

In order to achieve the above-mentioned first, second, third and fourth objects, the ventilating device of the present invention has a first means which is open at the bottom and is provided on the upper surface. Inside the hood body with the exhaust port, the A space part and the B space part are provided.
A fan in the space A, a fan casing communicating with the exhaust port having a built-in motor, and a cylindrical filter extending across the space B on the intake port side of the fan casing;
A motor for rotating the cylindrical filter, a partition plate provided on the intake side of the cylindrical filter to partition the A space part and the B space part, and the partition plate contacting the surface of the cylindrical filter. A seal portion is provided, a catalyst is provided on the surface of the cylindrical filter, and an exciting means and a reflecting means for exciting and activating the catalyst are provided in the space A.

A second means for achieving the first object is to provide a catalyst on the inner surfaces of the fan, the motor, the fan casing, the space A and the space B, and the catalyst,
Also, the exciting means and the reflecting means for exciting and activating the catalyst on the surface of the cylindrical filter are provided in at least the B space.

A third means for achieving the second object is configured such that a catalyst is provided on the inner surface of the cylindrical filter and an exciting means is provided inside the cylindrical filter.

A fourth means for achieving the fourth object is such that a catalyst is provided on the inner surface of the cylindrical filter, and an exciting means and a reflecting means are provided inside the cylindrical filter.

Further, a fifth means for achieving the fourth object is that the long plates are arranged in the circumferential direction, and a cylindrical filter is provided in which the inner circumferential side of the long plates is advanced in the circumferential direction. To do.

A sixth means for achieving the fifth object is configured such that an opening / closing portion is provided in the space A and the space B, and an exciting means and a reflecting means are provided inside the opening / closing portion. .

The seventh means for achieving the fifth object is constituted by dividing the cylindrical filter into two parts.

The eighth means for achieving the sixth object is to provide a panel for shielding the corner portion on the inner surface of the hood body forming the B space, and to provide an oil repellant on the panel and the outer surface of the hood body. The composition is made by painting effective paint.

A ninth means for achieving the second object is configured such that a roll filter and a motor for rotating the roll filter are provided, and a catalyst is provided on the surface of the roll filter. .

In addition, a tenth aspect for achieving the second object
The means has a configuration in which a flat plate filter having a rotation support portion supported thereon, a motor for rotating the flat plate filter by 180 degrees are provided, and a catalyst is provided on both surfaces of the flat plate filter.

[0021]

The present invention is that the catalyst is excited and activated at room temperature by the constitution of the above-mentioned first means and can perform the self-cleaning function at room temperature.

Further, the first, second, third, ninth and tenth constructions make it possible to decompose and vaporize the adhering cooking oil efficiently and in a short time.

Further, the construction of the first means makes it possible to prevent dust from adhering to the filter. In addition, with the configuration of the first, fourth, and fifth means, it is possible to suppress leakage of the excitation light, which serves as the excitation means, to the outside, and enhance the safety.

The exchanging means can be easily replaced by the constitution of the sixth and seventh means.

Further, with the construction of the eighth means, it is possible to easily clean the oil stains attached to the portions which the excitation means cannot reach.

[0026]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described below with reference to FIGS.

As shown in the figure, reference numeral 1 denotes a ventilator hood main body (hereinafter referred to as hood main body), which forms an A space portion 2 and a B space portion 3 having an intake port 4 whose lower portion is opened. The hood body 1 is attached to the wall surface 26 so as to be located above a cooking device (not shown). Inside the space A 2, a blower 8 in which a centrifugal fan 6 fixed to a motor 5 is surrounded by a fan casing 7 is housed, and oil smoke generated from a cooker is sucked in through the intake port 4, The exhaust port 9 on the upper surface of the space A 2, the discharge port 10 communicating with the exhaust port 9, and the duct 12 fitted and connected to the discharge port 10 by an adapter 11 are configured to discharge to the outside of the room. Further, in the space A 2, a cylindrical filter 14 that captures oil drops 13 and dust 24 in oil smoke.
Are arranged over the B space portion 3, and the cylindrical filter 1
A motor 16 for rotating 4 is provided. The cylindrical filter 14 is formed of punching metal having an intake hole 15 on the entire surface. Space A 2 and Space B 3
Is partitioned by a partition plate 17 connected to the hood body 1. The partition plate 17 is provided with a seal portion 18 in contact with the cylindrical filter 14 so that the oily smoke does not leak from the periphery of the cylindrical filter 14. The surface of the cylindrical filter 14 is provided with a catalyst 19 (for example, an oxidation catalyst, a photocatalyst, etc.) that decomposes and vaporizes the attached cooking oil. Further, the cylindrical filter 1 is provided on the inner surface of the space A
An excitation means 20 for exciting and activating the catalyst 19 is provided on the surface facing the catalyst 4. This excitation means 20
Is composed of a near-ultraviolet light irradiation lamp 21. Further, a reflecting means 22 for reflecting and condensing the excitation light of the near-ultraviolet light irradiation lamp 21 is provided. This reflection means 2
2 is composed of a reflector 23. Also the reflector 23
Is made of a material having a high light reflectance (for example, aluminum), has a parabolic shape, and is provided with the near-ultraviolet light irradiation lamp 21 at the focal position of the reflection plate 23.

In the above structure, when cooking, the motor 5 of the blower 8 is driven to rotate and the fan 6 is rotated, and the generated oil smoke is sucked from the air inlet 4 of the B space portion 3 and is sucked by the cylindrical filter 14 to absorb the oil smoke. Oil drops 13 and dust 24
Are trapped by the cylindrical filter 14. Therefore, the oil droplets 13 and the dust 24 in the oil smoke are captured and the purified air is exhausted to the outside by the blower 8 through the exhaust port 9, the discharge port 10, the adapter 11, and the duct 12. On the other hand, in the cylindrical filter 14, the intake holes 15 are gradually clogged due to the adhesion of the oil droplets 13 and the dust 24, and therefore it is necessary to remove the oil droplets 13 and the dust 24 that adhere. Therefore, the cylindrical filter 14 is rotated by the motor 16 so that the oil droplets 13,
And the dust 24 are evenly attached to the surface of the cylindrical filter 14, and the oil droplets 13 and the dust 24 attached to the B intake side of the cylindrical filter 14 are in the A space 2 as the cylindrical filter 14 is rotated by the motor 16. Move inside. Therefore, the near-ultraviolet light irradiation lamp 21 of the excitation means 20 is turned on, the emitted excitation light is caused to react with the catalyst 19 provided on the surface of the cylindrical filter 14, and the oil droplets 13 attached to the cylindrical filter 14 are kept at room temperature. It can be decomposed and vaporized into low carbon molecules, carbon dioxide, and water vapor. At this time, the oil droplets 13 uniformly attached to the cylindrical filter 14 are
Along with the rotation of No. 4, it moves to the inside of the A space section 2 one after another, and the amount of load oil per unit area can be suppressed. Further, since the reflection plate 23 is parabolic and the near-ultraviolet light irradiation lamp 21 is installed at the focal point of the parabola, the excitation light is collimated and focused on the surface of the cylindrical filter 14. Therefore, the excitation light is emitted from the near-ultraviolet light irradiation lamp 21,
By the reaction with the catalyst 19 provided on the surface of the cylindrical filter 14, the attached oil droplet 13 can be decomposed and vaporized efficiently and in a short time. Further, the dust 24 attached to the cylindrical filter 14 as the cylindrical filter 14 rotates can be captured and removed by the seal portion 18 in contact with the cylindrical filter 14 as the cylindrical filter 14 rotates. Further, the excitation light emitted from the near-ultraviolet light irradiation lamp 21 provided inside the main body 1 is blocked by the cylindrical filter 14 to prevent the cooker from directly looking at the excitation light and preventing the excitation light from leaking to the outside. ,
The safety can be improved.

As described above, according to the ventilator of the first embodiment of the present invention, the catalyst, the exciting means and the reflecting means are used at room temperature,
Efficiently decomposes and vaporizes attached oil during cooking. In addition, by suppressing the amount of load oil per unit area that is attached and captured on the cylindrical filter, it is possible to efficiently decompose and vaporize the attached oil during cooking in a short time. Further, the dust can be removed by the seal portion as the cylindrical filter rotates, and the dust can be prevented from adhering to the cylindrical filter. Further, since the excitation light is blocked by the cylindrical filter, it is possible to suppress the leakage of the excitation light, which serves as the excitation means, to the outside, and enhance the safety.

In the embodiment, the cylindrical filter is made of punching metal, but instead of punching metal, porous sintered metal, ceramics or non-woven fabric may be used. Does not occur.

In the embodiment, the catalyst is provided on the surface of the cylindrical filter, but the catalyst may be provided on the surfaces of the exciting means and the reflecting means, and there is no difference in the function and effect.

Although the exhaust port is provided on the upper surface in the embodiment, it may be provided on the rear surface and the side surface, and there is no difference in the function and effect.

Next, a second embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, a catalyst 19a is provided on the surface of the motor 5, the fan 6, the fan casing 7, and the inner surfaces of the hood body 1 and the space A 2, and the hood body 1 is further provided with an exciting means 20a. Has been. Further, the excitation means 20a is also provided inside the B space 3. The excitation means 20a is composed of a near-ultraviolet light irradiation lamp 21a. Further, a reflection means 22a for reflecting and condensing the excitation light of the near-ultraviolet light irradiation lamp 21a is provided. The reflecting means 22a is composed of a reflecting plate 23a.

With the above structure, when removing the oil droplets 13 adhering to the cylindrical filter 14, the near-ultraviolet light irradiation lamp 21a of the excitation means 20a is turned on and the emitted excitation light is provided on the surface of the cylindrical filter 14. And reacts with the catalyst 19 to decompose the oil droplets 13 adhering to the cylindrical filter 14 into low carbon molecules, carbon dioxide, and water vapor at room temperature, and vaporize them.
The cylindrical filter 14 is cleaned. The excitation light emitted at this time is reflected by the reflection plate 23a. Since the reflection plate 23a has a parabolic shape and the near-ultraviolet light irradiation lamp 21a is installed at the focal point of the parabola, the excitation light becomes parallel rays. Then, the surface of the cylindrical filter 14 is intensively irradiated. Moreover, although the oil droplets 13 adhere to the inner surface of the space A 2, the cylindrical filter 1
The catalyst 19 provided on the inner surface of the A space portion 2 is the reflected light of the excitation light with which the cylindrical filter 14 is irradiated in a small amount as compared with the surface 4
When a is excited, the oil droplets 13 can be decomposed and vaporized into low carbon molecules, carbon dioxide, and water vapor at a sufficiently room temperature. Further, the oil droplets 13 also adhere to the inner surface of the B space portion 3, and when removing the oil droplets, the near-ultraviolet light irradiation lamp 21a is turned on and the emitted excitation light is used as the catalyst 19a provided on the inner surface of the B space portion 3. The oil droplets 13 adhering to the inner surface of the B space portion 3 can be decomposed and vaporized into low carbon molecules, carbon dioxide, and water vapor at room temperature to purify the inner surface of the B space portion 3. On the other hand, after the oil droplets 13 in the oil smoke adhere to and are captured by the cylindrical filter 14, the air from which the oil droplets 13 have been purified is discharged by the blower 8 including the motor 5, the fan 6 and the fan casing 7 to the exhaust port 9 and the discharge port. 10, adapter 11, duct 1
The oil droplets 13 that are exhausted to the outside through 2 but are not attached and captured by the cylindrical filter 14 are the motor 5, the fan 6, and the
It adheres to the fan casing 7. This attached oil drop 13
As for the low carbon molecules, carbon dioxide and carbon dioxide at room temperature, due to the excitation light from the near-ultraviolet light irradiation lamp 21 provided in the vicinity of the fan casing 7 and the interior of the space A 2, and the reflected light from the reflection plate 23 and the catalyst 19. , Can be decomposed into water vapor and vaporized.

As described above, according to the ventilator of the second embodiment of the present invention, the catalyst, the exciting means and the reflecting means are used at room temperature,
Efficiently decomposes and vaporizes attached oil during cooking.

Next, a third embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, a catalyst 19 is also provided on the inner surface of the cylindrical filter 14, and a near-ultraviolet light irradiation lamp 21b serving as an excitation means 20 is also provided inside the cylindrical filter 14.

In the above structure, the oil droplet 1 contained in the oil smoke
Part of 3 is not attached and captured on the surface of the cylindrical filter 14,
After passing through the intake hole 15, it is captured again on the inner surface of the cylindrical filter 14. Therefore, when removing the oil droplets 13 adhering to the inner surface of the cylindrical filter 14, the near-ultraviolet light irradiation lamp 21b of the excitation means 20 provided inside the cylindrical filter 14 is turned on, and the emitted excitation light is emitted from the inner surface of the cylindrical filter 14. The oil droplets 13 attached to the inner surface of the cylindrical filter 14 by reacting with the catalyst 19 provided in the
The cylindrical filter 14 is purified by decomposing it into water vapor and vaporizing it. At this time, the oil droplets 13 are attached and supplemented on both the surface and the inner surface of the cylindrical filter 14, and the amount of loaded oil per unit area can be suppressed. Therefore, the oil droplet 1 can be efficiently and quickly supplied.
3 can be decomposed and vaporized.

As described above, according to the ventilator of the third embodiment of the present invention, the area for supplementing oil droplets is increased and the amount of load oil per unit area can be suppressed. The attached oil can be decomposed and vaporized.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, a reflector 23b is attached to the near-ultraviolet light irradiation lamp 21b provided inside the cylindrical filter 14.
Is attached.

With the above structure, the reflection plate 23b is provided with the near-ultraviolet light irradiation lamp 21b provided inside the cylindrical filter 14.
Block the excitation light, and suppress the leakage of the excitation light to the outside,
The safety can be improved.

As described above, according to the ventilator of the fourth embodiment of the present invention, the reflection plate blocks the excitation light emitted from the near-ultraviolet light irradiation lamp and leaks the excitation light serving as the excitation means to the outside. It can suppress and improve safety.

Next, a fifth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, the cylindrical filter 14a is
The long plate 34 is arranged in the circumferential direction, and the inner peripheral side of the long plate 34 is formed by advancing in the circumferential direction.

With the above structure, even when the cylindrical filter 14a is irradiated with the excitation light, the long plate 34 arranged in the cylindrical filter 14a prevents the excitation light from traveling straight and leaks the excitation light serving as the excitation means to the outside. This can be suppressed and safety can be improved.

As described above, according to the ventilation device of the fifth embodiment of the present invention, the long plate arranged in the cylindrical filter blocks the radiated light of the near-ultraviolet light irradiation lamp, and the excited light serving as the exciting means is externally supplied. It is possible to suppress the leakage and improve the safety.

Next, a sixth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, an opening / closing section 25 is provided in the A space section 2 and the B space section 3, and inside the opening / closing section 25, near-ultraviolet light irradiation lamps 21 and 21 which are excitation means 20 are provided.
a is provided.

With the above structure, the opening / closing section 25 provided in the A space section 2 and the B space section 3 is opened / closed, and the excitation means 20 is opened.
The near-ultraviolet light irradiation lamps 21 and 21a can be easily replaced.

As described above, according to the ventilation apparatus of the sixth embodiment of the present invention, the near-ultraviolet light irradiation lamp of the excitation means can be easily replaced by providing the hood body and the opening / closing portion in the space. .

Next, a seventh embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, a near-ultraviolet light irradiation lamp 21b serving as an excitation means 20 is also provided inside the cylindrical filter 14. Further, the cylindrical filter 14 is replaced by the filter 33.
The filter 33a and the filter 33b are divided into a and a filter 33b, and the rotation support 27 supports the filter 33a and the filter 33b.

With the above structure, the cylindrical filter 14 can be divided into the filter 33a and the filter 33b and opened and closed, and the near-ultraviolet light irradiation lamp 21b serving as the excitation means 20 can be easily replaced.

As described above, according to the ventilator of the seventh embodiment of the present invention, the cylindrical filter can be divided into two and opened / closed, and the near-ultraviolet light irradiation lamp serving as the excitation means can be easily replaced.

Next, an eighth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, a panel 29 for covering the corner portion 28 of the B space portion 3 is provided, and a paint having an oil repellent effect is provided on the panel 29, the outer surface of the B space portion 3 and the outer surface of the A space portion 2. It is painted.

With the above configuration, the corner portion 28 of the B space portion 3 where the excitation light does not reach can be covered with the panel 29 to prevent the oil droplets 13 from adhering to the corner portion 28. Further, since the panel 29, the outer surface of the B space portion 3 and the outer surface of the A space portion 2 are coated with a paint having an oil-repellent effect, the panel 29, the outer surface of the B space portion 3 and A which are not exposed to the excitation light. It is possible to easily clean oil stains attached to the outer surface of the space 2.

As described above, according to the ventilator of the eighth embodiment of the present invention, it is possible to easily clean the oil stains attached to the part that the excitation means cannot reach.

Next, a ninth embodiment of the present invention will be described with reference to FIG.
Will be described with reference to. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, the A space portion 2 and the B space portion 3
The roll-shaped filter 30 that captures the oil droplets 13 and the dust 24 in the oil smoke is arranged so as to partition the rolls, and the motor 16 that rotates the roll-shaped filter 30 is arranged in the space A 2. The roll filter 30 has an intake hole 15a on the entire surface and is made of a flexible punching metal. In addition, the roll filter 30
Has a motor 16 which rotates at least both ends of the roll filter 30 and which is supported by the support portions 31.
Further, one surface of the roll-shaped filter 30 is oriented in the A space portion 2, and the other surface is oriented in the B space portion 3. The A space portion 2 and the B space portion 3 are separated by a partition plate 17 connected to the hood body 1. In this partition plate 17,
A seal portion 18 that contacts the roll filter 30 so that the oily smoke does not leak from the periphery of the roll filter 30.
Is provided. A catalyst 19 (for example, an oxidation catalyst, a photocatalyst, etc.) that decomposes and vaporizes the attached cooking oil is provided on the surface of the roll filter 30. Further, an excitation means 20 for exciting and activating the catalyst 19 is provided on the surface of the A space 2 facing the roll-shaped filter 30. The excitation means 20 is composed of a near-ultraviolet light irradiation lamp 21. Further, a reflecting means 22 for reflecting and condensing the excitation light of the near-ultraviolet light irradiation lamp 21 is provided. The reflecting means 22 is composed of a reflecting plate 23. In order to prevent the oily smoke from leaking around the roll-shaped filter 30, the roll-shaped filter 3
A seal portion 18 that contacts 0 is provided. The surface of the roll-shaped filter 30 decomposes adhered oil during cooking,
Catalyst 19 for vaporization (eg oxidation catalyst, photocatalyst, etc.)
Is provided. Further, an exciting means 20 for exciting and activating the catalyst 19 is provided on a surface of the hood A space 2 facing the roll filter 30.

In the above structure, the oil smoke generated during cooking is sucked from the air inlet 4 of the B space 3 and sucked by the roll-shaped filter 30, and the oil droplets 13 and the dust 2 in the oil smoke.
4 is attached and captured by the roll-shaped filter 30. Therefore, the air in which the oil droplets 13 and the dust 24 are captured and purified is discharged by the blower 8 including the motor 5, the fan 6, and the fan casing 7 to the exhaust port 9, the discharge port 10, the adapter 1.
1. Exhausted to the outside through the duct 12. On the other hand, in the roll-shaped filter 30, the intake holes 15 are gradually clogged due to the adhesion of the oil droplets 13 and the dust 24, and therefore it is necessary to remove the oil droplets 13 and the dust 24 that adhere. At this time, the roll filter 30 is rotated by the motor 16. On the other hand, the oil droplets 13 are uniformly attached to the surface of the roll-shaped filter 30, and the oil droplets 13 and the dust 24 attached to the B space 3 of the roll-shaped filter 30 are the same.
With the rotation of 0, it moves inside the A space 2. In this case, the near-ultraviolet light irradiation lamp 21 of the excitation means 20 is turned on, the emitted excitation light is caused to react with the catalyst 19 provided on the surface of the roll-shaped filter 30, and the oil droplet 13 attached to the roll-shaped filter 30. Can be decomposed and vaporized into low carbon molecules, carbon dioxide, and water vapor at room temperature. further,
The oil droplets 13 uniformly attached to the roll-shaped filter 30 sequentially move into the space A 2 as the roll-shaped filter 30 rotates, and the amount of loaded oil per unit area can be suppressed. In addition, the roll-shaped filter 30 includes the support portion 31.
The moving direction of the roll filter 30 is changed by
It is close to the near-ultraviolet light irradiation lamp 21 inside the space 2.
The excitation light emitted at this time is reflected by the reflection plate 23, which has a parabolic shape and has a near-ultraviolet light irradiation lamp 2.
Since No. 1 is installed at the focal point of the parabola, the excitation light becomes parallel rays and is focused on the surface of the roll filter 30. Therefore, the near-ultraviolet light irradiating lamp 21 emits the excitation light, and the reaction with the catalyst 19 provided on the surface of the roll-shaped filter 30 efficiently decomposes and vaporizes the oil droplets 13 attached during cooking in a short time. You can

As described above, according to the ventilator of the ninth embodiment of the present invention, by suppressing the amount of load oil per unit area that is attached to and captured on the roll-shaped filter, it is possible to efficiently and quickly attach the oil during cooking. The oil can be decomposed and vaporized.

Next, a tenth embodiment of the present invention will be described with reference to FIG. The same parts as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

As shown in the figure, the A space portion 2 and the B space portion 3
Is arranged so as to partition the oil drops 13 and dust 24 in the oil smoke, and the flat plate filter 3
A motor 16 that rotates 2 every 180 degrees is arranged in the space A 2. Further, the flat plate filter 32 is formed of punching metal having a center portion supported by a rotation support portion 35 and having an intake hole 15 on the entire surface. Further, one surface of the flat plate filter 32 is oriented in the A space portion 2, and the other surface is oriented in the B space portion 3. The A space portion 2 and the B space portion 3 are separated by a partition plate 17 connected to the hood body 1. And, on the surface of the flat plate filter 32,
A catalyst 19 (for example, an oxidation catalyst, a photocatalyst, etc.) that decomposes and vaporizes the attached cooking oil is provided. Further, an excitation means 20 for exciting and activating the catalyst 19 is provided on the surface of the A space 2 facing the flat plate filter 32. The excitation means 20 is composed of a near-ultraviolet light irradiation lamp 21.

In the above structure, oil smoke generated during cooking is sucked from the air inlet 4 of the B space 3 and sucked by the flat plate filter 32, so that the oil droplets 13 in the oil smoke are flat plate filter 32.
To be captured. Therefore, the air purified by capturing the oil droplets 13 is exhausted by the blower 8 including the motor 5, the fan 6 and the fan casing 7, the exhaust port 9, the discharge port 10,
The air is exhausted to the outside through the adapter 11 and the duct 12.
On the other hand, in the flat plate filter 32, the suction holes 15 are gradually clogged due to the adhesion of the oil droplets 13, so it is necessary to remove the oil droplets 13 that adhere. At this time, the flat plate filter 32 is rotated by the motor 16. On the other hand, the oil droplets 13 uniformly adhere to the surface of the flat plate filter 32, and the flat plate filter 32 is rotated by 180 degrees and adheres to the rear surface of the flat filter 32 before reaching a certain amount. Then, the oil droplet 13 attached to the surface of the flat plate filter 32
Moves to the inside of the A space portion 2 as the flat plate filter 32 rotates by 180 degrees. In this case, the near-ultraviolet light irradiation lamp 21 of the excitation means 20 is turned on, and the emitted excitation light is reacted with the catalyst 19 provided on the surface of the flat plate filter 32,
The oil droplets 13 attached to the flat plate filter 32 can be decomposed and vaporized into low carbon molecules, carbon dioxide, and water vapor at room temperature. Therefore, the oil droplets 13 uniformly attached to the flat plate filter 32 are sequentially moved into the space A 2 with the rotation of the flat plate filter 32, and the load oil amount per unit area can be suppressed. At this time, the flat plate filter 32
The oil droplet 13 adhering to is irradiated with excitation light by the near-ultraviolet light irradiation lamp 21 inside the A space 2. Accordingly, the excitation light is emitted from the near-ultraviolet light irradiation lamp 21, and the reaction with the catalyst 19 provided on the surface of the flat plate filter 32 can efficiently and quickly decompose and vaporize the oil droplets 13 attached during cooking in a short time. it can.

As described above, according to the ventilator of the tenth embodiment of the present invention, by suppressing the amount of the load oil per unit area that is attached to and captured by the flat plate filter, the attached oil during cooking can be efficiently and in a short time. Can be decomposed and vaporized.

[0069]

As is apparent from the above embodiments, according to the present invention, the catalyst can be excited and activated by the catalyst, the excitation means, and the reflection means. It is possible to provide a ventilation device capable of decomposing and vaporizing the adhered oil of, and fulfilling a self-cleaning function. Further, by suppressing the amount of load oil per unit area that is attached to and captured by the cylindrical filter, it is possible to provide a ventilation device that can efficiently decompose and vaporize the attached cooking oil in a short time. Further, it is possible to provide a ventilation device in which dust can be removed by the seal portion as the cylindrical filter rotates and dust can be prevented from adhering to the cylindrical filter. Further, since the excitation light is blocked by the cylindrical filter, it is possible to provide a ventilation device capable of suppressing the leakage of the excitation light serving as the excitation means to the outside and improving the safety.

Further, since the exciting means and the reflecting means can excite and activate the catalysts of the fan, the motor, the fan casing, and the hood body, the oil adhered during cooking is efficiently decomposed and vaporized at room temperature. Can be
A ventilation device that can perform a self-cleaning function can be provided.

Further, the area for supplementing the oil droplets increases and the amount of load oil per unit area can be suppressed, so that the efficiency can be improved.
It is possible to provide a ventilation device that can decompose and vaporize the adhered oil during cooking in a short time.

Further, it is possible to provide a ventilator in which the reflector blocks the excitation light emitted from the near-ultraviolet light irradiation lamp, suppresses the leakage of the excitation light serving as the excitation means to the outside, and enhances the safety. .

Further, the long plate arranged in the cylindrical filter blocks the radiated light of the near-ultraviolet light irradiation lamp, suppresses the leakage of the excitation light serving as the excitation means to the outside, and enhances the safety. A device can be provided.

By providing the hood body and the opening / closing part in the space, it is possible to provide a ventilation device in which the near-ultraviolet light irradiation lamp of the excitation means can be easily replaced.

Further, the cylindrical filter is divided into two and opened and closed,
It is possible to provide a ventilation device in which the near-ultraviolet light irradiation lamp serving as the excitation means can be easily replaced.

Further, it is possible to provide a ventilator capable of facilitating cleaning of oil stains attached to a portion which the excitation means cannot reach.

Further, by suppressing the load oil amount per unit area that is adhered and captured on the roll-shaped filter, it is possible to provide a ventilation device that can efficiently decompose and vaporize the adhered oil during cooking in a short time.

Further, by suppressing the amount of load oil per unit area that is attached and captured on the flat plate filter, the efficiency can be improved efficiently.
It is possible to provide a ventilation device that can decompose and vaporize the adhered oil during cooking in a short time.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a ventilation device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the main part of the embodiment.

FIG. 3 is a vertical cross-sectional view of the ventilation device according to the second embodiment.

FIG. 4 is a sectional view of a main part of the third embodiment.

FIG. 5 is a sectional view of the same fourth embodiment.

FIG. 6 is a sectional view of the fifth embodiment.

FIG. 7 is a vertical cross-sectional view of the ventilation device of the sixth embodiment.

FIG. 8 is a sectional view of the essential parts of the seventh embodiment.

FIG. 9 is a longitudinal sectional view of the ventilation device of the eighth embodiment.

FIG. 10 is a vertical sectional view of the same ninth embodiment.

FIG. 11 is a vertical sectional view of the same 10th embodiment.

FIG. 12 is a vertical sectional view of a conventional ventilation device.

[Explanation of symbols]

 1 Hood Main Body 2 A Space Part 3 B Space Part 4 Inlet Port 5 Motor 6 Fan 7 Fan Casing 9 Exhaust Port 14, 14a Cylindrical Filter 16 Motor 17 Partition Plate 18 Sealing Part 19 Catalyst 20 Exciting Means 22 Reflecting Means 25 Opening and Closing 28 Corners Part 29 Panel 30 Roll filter 32 Flat plate filter 34 Long plate

Claims (10)

[Claims] 1. An A space portion and a B space portion are provided inside a hood body having a lower opening and an exhaust port on an upper surface.
A fan casing that has a fan and a motor built into the space and communicates with the exhaust port, a cylindrical filter that spans the space B on the intake side of the fan casing, a motor that rotates the cylindrical filter, and the cylindrical filter. Is provided with a certain B space portion on the intake port side, and a partition plate for partitioning the A space portion and the B space portion, and a seal portion in contact with the surface of the cylindrical filter are provided on the partition plate, and A ventilator in which a catalyst is provided and an exciting means for exciting and activating the catalyst and a reflecting means are provided in the space A. 2. A fan, a motor, a fan casing and A
A catalyst is provided on the inner surface of the space portion and the inner surface of the B space portion, and at least the B space portion is provided with an exciting means and a reflecting means for exciting and activating the catalyst and the catalyst on the surface of the cylindrical filter. The ventilation device according to 1. 3. The ventilation device according to claim 1, wherein a catalyst is provided on the inner surface of the cylindrical filter, and an exciting means is provided inside the cylindrical filter. 4. The ventilation device according to claim 1, wherein a catalyst is provided on the inner surface of the cylindrical filter, and an exciting means and a reflecting means are provided inside the cylindrical filter. 5. The ventilation device according to claim 1, wherein the long plates are arranged in the circumferential direction, and a cylindrical filter is provided in which the inner circumferential side of the long plates is advanced in the circumferential direction. 6. The ventilator according to claim 1, wherein an opening / closing part is provided in the A space part and the B space part, and an exciting means and a reflecting means are provided inside the opening / closing part. 7. The cylindrical filter is divided into two parts.
Ventilation device described. 8. The inner surface of the hood body forming the B space portion,
The ventilation device according to claim 1, wherein a panel for shielding the corner portion is provided, and the panel and the outer surface of the hood body are coated with a paint having an oil-repellent effect. 9. The ventilation device according to claim 1, wherein a roll filter and a motor for rotating the roll filter are provided, and a catalyst is provided on a surface of the roll filter. 10. The ventilator according to claim 1, further comprising a flat plate filter having a rotation supporting portion supported thereon, a motor for rotating the flat plate filter by 180 degrees, and a catalyst provided on both sides of the flat plate filter.