JP2017058092A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply a range hood including a cleaning device configured to reduce labor for cleaning or maintenance by enhancing cleanability of a filter on which oil, dust and the like adhere and accumulate.SOLUTION: A cleaning casing 11 included in a range hood has all inner surfaces opposite to a filter 10 as microwave shutoff plates, has the filter 10 made of ceramic or glass, and includes a microwave generation device 22. Consequently, the cleaning casing, when cleaning the filter, enhances fluidity of oil by vibration of oil molecules due to microwave irradiation in addition to water washing, to thereby enable cleanability to be enhanced and labor for cleaning or maintenance to be reduced.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a range hood provided with a filter that collects particles that are air dirt such as oily smoke and dust.

  Conventionally, this type of range hood is known to have a filter attached for the purpose of collecting oily smoke, dust, and the like generated during cooking (see, for example, Patent Document 1).

Hereinafter, the range hood will be described with reference to FIG.
FIG. 4 is a configuration diagram of a conventional range hood 100 disclosed in Patent Document 1. As shown in FIG. The air 101 containing dirt such as oily smoke passes through the intake port 102 and passes through the filter 104 disposed in front of the exhaust device 103. When the sensor 106 detects dirt on the filter 104, the rotary movable device 105 rotates the filter 104 to remove the dirt by centrifugal force.

  In addition, some types of range hoods are cleaned by immersing a filter that collects oily smoke or dust generated by cooking in a cleaning liquid (see, for example, Patent Document 2).

  Hereinafter, the range hood will be described with reference to FIG.

FIG. 5 is a configuration diagram of another conventional range hood 200 disclosed in Patent Document 2. As shown in FIG.
The range hood 200 includes a filter 203 between the suction port 201 and the fan 202. The filter 203 can be rotated by a horizontal rotation shaft 204. The part below the rotating shaft 204 of the filter 203 is immersed in the cleaning liquid 206 accommodated in the cleaning tank 205. Air containing dirt such as oil and dust passes through the portion of the filter 203 above the rotating shaft 204, and the dirt adheres. Then, the filter 203 is rotated by the rotating shaft 204 to be immersed in the cleaning liquid 206 for cleaning.

Japanese Patent Laid-Open No. 3-16439 JP-A-6-137630

  In such a conventional range hood 100, dirt cannot be completely removed by centrifugal force alone, and remains on the filter 104. As residual dirt accumulates and dries, it is increasingly difficult to remove the dirt with only centrifugal force. Therefore, accumulation of oil stains due to long-term use causes the filter 104 to be clogged, and it becomes difficult to reduce the ventilation air volume, which is a basic function of the range hood, or to suck dirt from the suction port.

  Moreover, the conventional range hood 200 does not have a sufficiently high cleaning rate. Furthermore, when the remaining oil stains are accelerated by drying and oxidation, the viscosity increases and the removal becomes increasingly difficult and the cleaning rate is lowered. The accumulation of the stains on the filter 203 is gradually clogged, and the performance of the range hood 200 is lowered.

  And as mentioned above, since these filters accumulate dirt with use, it is necessary to perform maintenance by periodically removing the filters.

  Therefore, the present invention solves the above-described conventional problems, and an object thereof is to provide a range hood with improved filter cleaning properties.

  In order to achieve this object, the present invention provides a hood provided with a ventilation path by communicating a suction port for sucking contaminated air, a discharge port, and a blower casing containing an exhaust device for exhausting air. A filter that is rotated by driving means downstream of the suction port, a cleaning casing that surrounds the filter and is provided with a cleaning casing suction port and a cleaning casing discharge port, and at least one injection port that faces the filter. A range hood having a cleaning nozzle, a water supply means for supplying water to the cleaning nozzle, and a drainage means for collecting sewage stored in the cleaning casing, wherein the filter is made of ceramic or glass, and the inner surface of the cleaning casing Is a microwave blocking plate that cuts off the microwave, and can irradiate the microwave toward the filter This is a range hood provided with a cleaning casing suction port blocking plate and a cleaning casing discharge port blocking plate configured by a microwave blocking plate that is provided with a living device and closes the cleaning casing suction port and the cleaning casing discharge port only during cleaning. To achieve the intended purpose.

  The range hood of the present invention includes a hood provided with a ventilation path in communication with a suction port for sucking contaminated air, a discharge port, and a blower casing containing an exhaust device for exhaust air blowing, and the downstream side of the suction port A filter that is rotated by a driving means, a cleaning casing that surrounds the filter and provided with a cleaning casing suction port and a cleaning casing discharge port, a cleaning nozzle having at least one injection port facing the filter, and the cleaning nozzle A range hood having a water supply means for supplying water to the sewage and a drainage means for collecting sewage stored in the cleaning casing, wherein the filter is made of ceramic or glass, and the inner surface of the cleaning casing is a micro wave that blocks microwaves. Consists of a wave blocking plate, equipped with a microwave generator that can irradiate microwaves toward the filter, and cleaning Only the cleaning casing suction port and the cleaning casing discharge port blocking plate are configured with a microwave blocking plate that closes the cleaning casing suction port and the cleaning casing discharge port. Wet the entire surface while removing dirt, and store the washing water in the washing casing so that a part of the filter is immersed in it. Then, close the washing casing suction port and the washing casing discharge port with a microwave blocking plate and microwave the washing casing. When the microwave is generated from the microwave generator simultaneously with the rotation of the filter after being surrounded by the shielding plate, the oil molecules adhering to the filter vibrate by the microwave and the fluidity is increased. As the filter rotates and dives in the wash water, the oil flows into the water and An effect of enhancing the cleaning property can be removed sticking to have oil stains.

Side view of the range hood of Embodiment 1 of the present invention Detailed view of the cleaning casing when the range hood according to the first embodiment of the present invention is ventilated (broken line portion in FIG. 1) Detailed view of the cleaning casing at the time of cleaning the range hood of the first embodiment of the present development (the diagram of the broken line portion in FIG. 1) Configuration diagram showing the state of conventional range hood installation Configuration diagram showing the installation state of another conventional range hood

  A range hood according to claim 1 of the present invention is a hood provided with an air passage by communicating a suction port for sucking contaminated air, a discharge port, and a blower casing containing an exhaust device for exhaust blower, A cleaning nozzle having a filter that is rotated by driving means downstream of the suction port, a cleaning casing that surrounds the filter and provided with a cleaning casing suction port and a cleaning casing discharge port, and at least one injection port facing the filter And a range hood having water supply means for supplying water to the cleaning nozzle and drainage means for collecting sewage stored in the cleaning casing, wherein the filter is made of ceramic or glass, and the inner surface of the cleaning casing is microscopic. Microwave generation that consists of a microwave blocking plate that blocks waves and can irradiate microwaves toward the filter The location provided, in which with a washing only when the cleaning casing inlet port and the cleaning casing ejection port closing and cleaning casing inlet blocking plate having a micro-wave shielding plate washed casing discharge port blocking plate.

  As a result, when cleaning the filter, the surface of the filter is first moistened with water spray from the cleaning nozzle while water is removed. After stopping the water spraying of the cleaning nozzle, the cleaning casing suction port and the cleaning casing discharge port are shut off. When the microwave was generated from the microwave generator at the same time as the rotation of the filter, it was attached to the filter. Oil molecules are vibrated by microwaves, increasing their fluidity. As the filter rotates in this state, it dives into the wash water and the oil flows into the water, so it can be removed from the filter. At the same time, dirt such as dust is removed from the filter together with oil. Therefore, the removal rate of oil stains during cleaning is improved. In addition, the filter and the washing water increase the temperature by molecular vibration caused by microwaves even without a heater, and when the oil comes into contact with the oil, the oil is softened so that it is easy to wash.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
The structure of the range hood provided with the apparatus in FIG. 1 is shown.

  A hood 2 provided with a suction port 1 for collecting oily smoke generated by cooking or fine particles floating around is installed above or around a cooker (not shown). A discharge port 4 that communicates with the outside via a duct 3 that communicates with the outside is provided on the top surface, and a blower casing 6 that includes an exhaust device 5 that includes a fan and a motor is disposed inside, and suction is provided via the exhaust device 5. A ventilation path 7 connecting the mouth 1 and the discharge outlet 4 is formed.

  Further, a flat rectifying plate 8 is provided on the upstream side of the blower casing 6 and on the suction port 1 side in the hood 2, and the driving means 9 is provided on the front surface of the exhaust device 5 on the downstream side of the suction port 1. A filter 10 is provided for collecting the connected oil and dust. The drive means 9 is for rotating the filter 10.

  The outer edge of the filter 10 has a box-shaped cleaning casing 11 that covers the filter 10, and has a cleaning casing suction port 12 on the upstream side of the filter 10 and a cleaning casing discharge port 13 on the downstream side to ensure ventilation. ing. The cleaning casing 11 can store cleaning water to such an extent that a part of the filter is immersed. The lower part of the rotary shaft of the filter 10 is immersed. Further, on the upstream side of the filter 10, a cleaning nozzle 14 having at least one injection port and facing the filter 10 at the cleaning casing suction port 12 is provided.

  The cleaning nozzle 14 is connected to a water supply means 18 including a water storage device 15, a water supply pump 16, a water supply pipe 17a, and a water supply pipe 17b. Further, a small hole 19 and a solenoid valve 20 are provided at the lower end of the cleaning casing 11, and sewage accumulated in the cleaning casing 11 after cleaning is recovered from the small hole 19 to the drainage means 21 by opening the solenoid valve 20. A structure is provided. In order to easily remove dirt such as oil and dust adhered to the filter 10, for example, hot water of about 40 ° C. can be put into the water storage device 15 before washing. Hereinafter, it is described as water.

  Further, FIG. 2 is a diagram showing the details of the inside of the cleaning casing 11 in the broken line portion of FIG. 1 during ventilation. A microwave generator 22 is provided at a position where the filter 10 can be irradiated with microwaves. For example, the filter 10 is disposed above the rotation axis. The microwave generator 22 includes a magnetron that generates microwaves and a box body 23 that surrounds the magnetron. The box body 23 uses a microwave transmission plate that allows microwaves to pass through the facing surface 24 as a surface facing the filter 10. The other surface 25 is made of a microwave blocking plate that blocks microwaves. For example, synthetic mica is used as the microwave transmission plate. The microwave shielding plate has a configuration in which a shielding plate (for example, a wire mesh or a punching metal) for preventing leakage of microwaves is sandwiched between two glasses. For example, the frequency of the microwave used in the microwave oven is 2.45 GHz, and the shielding plate only needs to have a mesh structure smaller than its wavelength of 12 cm. Further, the cleaning casing inner surface 26 facing the filter 10 is entirely made of a microwave blocking plate.

  FIG. 3 is a diagram showing details of the inside of the cleaning casing 11 in the broken line portion of FIG. 1 during cleaning. At the time of cleaning, the cleaning casing suction port 12 and the cleaning casing discharge port 13 are configured to be closed by a cleaning casing suction port blocking plate 27 and a cleaning casing discharge port blocking plate 28 formed of a microwave blocking plate. The cleaning casing suction port blocking plate 27 and the cleaning casing discharge port blocking plate 28 are inserted and extracted by the user before and after cleaning, or are opened and closed by a driving force such as a motor.

  On the other hand, the filter 10 may be made of ceramic or glass and may have any shape as long as it can be irradiated with microwaves. The drive means 9 includes a motor as an example, and the outer shell is covered with a microwave blocking plate.

  As shown in FIG. 1, the cooker hood configured as described above has a cleaning casing suction port 12 and a cleaning casing discharge port 13 opened to allow ventilation when collecting dirt such as oily smoke and indoor dust during cooking. In this state, the microwave generator 22 is not operated, and when the exhaust device 5 is operated to blow air, the generated oil smoke is exhausted from the suction port 1 near the rectifying plate 8 through the ventilation path 7 and from the discharge port 4. At this time, oil smoke, dust, and the like are collected by the filter 10 and collected. The accumulated oil sticks to the surface of the filter 10 and is dried and oxidized to increase the viscosity and increase the adhesion force, making it difficult to remove. Also, fibrous dirt such as dust adheres to highly viscous parts such as oil and becomes entangled and aggregated, making it difficult to remove. These blockages up to the hole of the filter 10 to cause clogging, leading to a reduction in the amount of exhaust air. Therefore, it is necessary to periodically clean the filter 10.

  Now, when the filter 10 is cleaned, the ventilation of the exhaust device 5 is first stopped. Then, the filter 10 is rotated by the driving means 9, and at the same time, the water stored in the water storage device 15 is pumped by the water supply pump 16 and supplied to the cleaning nozzle 14. The water sprayed from the jet nozzle of the cleaning nozzle 14 causes the dirt to flow down while colliding with the surface of the filter 10, and when the water passes through the surface of the filter 10 and the holes, the dirt entangled and accumulated in the holes of the filter 10 is also combined. Can be washed away. At the same time, washing water and dirt can be brought close to the outer peripheral side of the filter 10 by centrifugal force due to the rotation of the filter 10, and the dirt can be scattered and washed from the outer peripheral edge, and the washing water can be spread over the entire surface of the filter 10.

  Further, after the cleaning water is stored so that a part of the filter is immersed in the cleaning casing 11, water injection from the cleaning nozzle 14 is stopped, and the cleaning casing suction port 12 and the cleaning casing discharge port 13 are connected to the cleaning casing suction port blocking plate 27. The cleaning casing discharge port blocking plate 28 is closed, and the cleaning casing 11 is surrounded by the microwave blocking plate. Simultaneously with the rotation of the filter 10, when microwaves are generated by the microwave generator 22, the microwaves transmitted from the opposing surface 24 of the filter and the box are irradiated toward the filter 10. When a microwave hits the filter 10, the oil molecules adhering to the filter 10 are vibrated by the microwave and the fluidity is increased. When the filter 10 rotates in this state, it dives into the wash water, the oil flows into the water, and the oil stains are peeled off from the filter 10. At the same time, dirt such as dust also comes from the filter 10 with the oil. Removed. Therefore, the removal rate of oil stains during cleaning is improved. In addition, the temperature of the filter and cleaning water rises due to the molecular vibration caused by microwaves even without a heater, and the oil softens when it comes in contact with the oil, making it easier to clean. Further, since the cleaning casing suction port blocking plate 27 and the cleaning casing discharge port blocking plate 28 are closed during the microwave irradiation, even if the cleaning water stored in the cleaning casing 11 may splash, the user side or exhaust It does not flow out to the device 5 side.

  And after completion | finish of washing | cleaning, the solenoid valve 20 is opened and it drains to a drainage means, the washing | cleaning casing suction inlet blocking plate 27 and the washing | cleaning casing discharge outlet blocking plate 28 are opened, and the ventilation of the filter 10 upstream and downstream is secured.

  From the above, the range hood of the present invention provides an effect of improving the cleaning property against dirt such as oil and dust on the filter which has been dried and oxidized and fixed without periodically removing the filter. Further, since the water stored in the cleaning casing 11 can be warmed by the microwave generator 22, the temperature of the cleaning water can be increased without using a heater.

  As described above, the effect that microwaves are applied to the filter 10 to increase the fluidity of the oil molecule is that, in the case of a detachable filter, after the filter having the above-described configuration is removed, the user puts it in an existing microwave oven. The effect of increasing the cleaning rate of oil can also be obtained by irradiating waves.

  In the present invention, the inside of the cleaning casing is surrounded by a microwave blocking plate, the filter is made of ceramic or glass, and a microwave generator is provided at a position facing the filter to collect dirt such as oily smoke and dust. When washing the filter to be collected, in addition to washing with water, the oil fluidity is increased by using the vibration of oil molecules by microwaves, which is useful as a high detergency and greatly reduced filter clogging. is there.

DESCRIPTION OF SYMBOLS 1 Suction port 2 Hood 3 Duct 4 Discharge port 5 Exhaust device 6 Blower casing 7 Ventilation path 8 Current plate 9 Driving means 10 Filter 11 Cleaning casing 12 Cleaning casing suction port 13 Cleaning casing discharge port 14 Cleaning nozzle 15 Water storage device 16 Water supply pump 17a Water supply pipe 17b Water supply pipe 18 Water supply means 19 Small hole 20 Solenoid valve 21 Drainage means 22 Microwave generator 23 Box body 24 Opposing surface 25 Other surface 26 Cleaning casing inner surface 27 Cleaning casing suction port blocking plate 28 Cleaning casing discharge port blocking plate DESCRIPTION OF SYMBOLS 100 Range hood 101 Air containing dirt 102 Intake port 103 Exhaust device 104 Filter 105 Rotating movable device 106 Sensor 200 Range hood 201 Suction port 202 Fan 203 Filter 204 Rotating shaft 205 Cleaning tank 206 cleaning solution

Claims (1)

A hood provided with a ventilation path by communicating a suction port for sucking contaminated air, a discharge port, and a ventilation casing containing an exhaust device for exhaust ventilation, and a filter rotated by driving means downstream of the suction port A cleaning casing surrounding the filter and provided with a cleaning casing suction port and a cleaning casing discharge port, a cleaning nozzle having at least one injection port facing the filter, and a water supply means for supplying water to the cleaning nozzle And a range hood having drainage means for wastewater stored in the cleaning casing, wherein the filter is made of ceramic or glass, and the inner surface of the cleaning casing is constituted by a microwave blocking plate that blocks microwaves, Provided with a microwave generator capable of irradiating microwaves toward the filter, the cleaning casing only during cleaning Range hood with plug mouth and the cleaning casing ejection port closing washed casing inlet blocking plate having a micro-wave shielding plate washed casing discharge port blocking plate.

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