JP2013213630A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve a problem that, if a washing means of wash water is only used, a wash interval is increased since the wash water has to be supplied, adhesion of oil stain or dust is firmly fixed in a long period of time, and thereby it cannot be sufficiently removed when washed.SOLUTION: A range hood has a suction port 2 and a discharge port 3, and includes an exhaust fan motor 4 provided in an airflow path connecting between the suction port 2 and the discharge port 3; a filter 5 disposed between the suction port 2 and the exhaust fan motor 4; a water storage tank 7 that stores wash water for washing the filter 5; a spray means 9 for washing the filter 5 by spraying the wash water in the water storage tank 7 or air to the filter; a water supply pump 10 for moving the wash water in the water storage tank 7 to the spray means 9; a ventilation means 11 for sending air to the filter 5 from the spray means 9; and a drain tank 12 for recovering the wash water. The filter 5 is washed by a combination of water pressure spray by the water supply pump 10 and wind pressure by the ventilation means 11.

Description

  The present invention relates to a range hood for washing a filter with washing water.

  A conventional range hood fan includes a filter, a water conditioning plate disposed opposite to the filter, a clean casing surrounding the filter and the water conditioning plate, and an exhaust gas in a ventilation path from the suction port to the discharge port. In a hood having a fan and having a waste collection means, the filter and the water conditioning plate are arranged so as to be maintained at a certain distance, and the driving means for rotating the filter and the water conditioning plate; Water spraying means for spraying or spraying the filter was used, and the filter was washed by the water spraying means (see, for example, Patent Document 1).

JP 2007-163209 A

  In such a conventional range hood fan, cleaning water for spraying or spraying the filter is essential, and the cleaning water must be supplied manually by the user. Therefore, there is a problem that oil stains and dust adhere to each other without washing and cannot be removed even after washing.

  An object of the present invention is to solve the above-described conventional problems, and an object is to provide a cleaning mode that does not use cleaning water and to perform cleaning before oil stains and dust adhere.

  The range hood according to claim 1 of the present invention has a suction port and a discharge port, an exhaust fan motor in the ventilation path connecting the suction port and the discharge port, the suction port and the exhaust fan motor A filter provided between, a water storage tank for storing cleaning water for cleaning the filter, spraying means for spraying and cleaning the cleaning water or air of the water storage tank, and the water storage layer A water supply pump for moving the cleaning water to the spraying means, a blower means for sending filter air from the spraying means, and a drainage tank for recovering the cleaning water, and the filter has a water pressure by the water supply pump. Cleaning is performed by a combination of spraying and wind pressure by the blowing means, and the intended purpose is achieved.

  According to the present invention, the exhaust fan motor has a suction port and a discharge port, and is provided between the suction port and the exhaust fan motor in a ventilation path connecting the suction port and the discharge port. A filter, a water storage tank for storing the cleaning water for cleaning the filter, a spray means for spraying and cleaning the cleaning water or air of the water storage tank, and the cleaning water for the water storage layer. A water supply pump for moving to the means, a blower means for sending filter air from the spraying means, and a drain tank for collecting washing water, and the filter is sprayed with water pressure by the feedwater pump and the blower means Since the cleaning is performed with a combination of wind pressures, the filter is washed with the wind pressure by the blowing means even when there is no wash water in the water storage tank. It has the effect that it has the effect of enabling always filter cleaning even when not supplying wash water by the user.

Overview of the range hood according to the first embodiment of the present invention The circuit block diagram of Embodiment 1 of this invention Configuration diagram of the cleaning portion of the first embodiment of the present invention Configuration diagram of the cleaning portion of the first embodiment of the present invention Cleaning flowchart of Embodiment 2 of the present invention Circuit configuration diagram of Embodiment 3 of the present invention

  The range hood according to claim 1 of the present invention has a suction port and a discharge port, an exhaust fan motor in the ventilation path connecting the suction port and the discharge port, the suction port and the exhaust fan motor A filter provided between, a water storage tank for storing cleaning water for cleaning the filter, spraying means for spraying and cleaning the cleaning water or air of the water storage tank, and the water storage layer A water supply pump for moving the cleaning water to the spraying means, a blower means for sending filter air from the spraying means, and a drain tank for recovering the cleaning water.

  Thereby, the filter can be washed by the wind pressure by the blowing means even when there is no washing water in the water storage tank by washing the filter with a combination of the spray of water pressure by the water supply pump and the wind pressure by the blowing means. It has an effect that the filter can always be cleaned even when the user does not supply cleaning water.

  According to a second aspect of the present invention, the range hood includes control means for controlling the operation of the exhaust fan motor, and after the control means finishes the operation of the exhaust fan motor, the air pressure is sent to the filter by the blower means. It has the structure which wash | cleans.

  Thereby, it has the effect | action that it can remove before oil adheres after completion | finish of cooking, and has the effect of preventing that it becomes impossible to wash | clean because of time passage.

  The range hood according to claim 3 is configured such that the control means accumulates the operation time of the exhaust fan motor, and after the operation time has been operated for a certain period of time, the air pressure is sent to the filter by the blower means to wash the filter. Have.

  Thereby, it has the effect | action that it cannot wash | clean at the time of adhesion of a small amount of oil, and has the effect that filter washing | cleaning can be performed by the effective frequency | count of washing | cleaning.

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

(Embodiment 1)
As shown in FIG. 1, the range hood 1 has a suction port 2 and a discharge port 3, and an exhaust fan motor 4, a suction port 2, and an exhaust port are disposed in a ventilation path connecting the suction port 2 and the discharge port 3. A filter 5 provided between the fan motor 4, a filter motor 6 that rotates the filter, a water tank 7 that stores cleaning water for cleaning the filter 5, and a sensor 8 that determines the presence or absence of water in the water tank 7. A spray means 9 for spraying and washing the wash water of the water storage tank 7 on the filter 5, a water supply pump 10 for moving the wash water of the water tank 7 to the spray means 9, and the spray means 9 to the filter 5. The blower means 11 for sending the wind pressure and the drainage tank 12 for collecting the washing water are configured.

  Further, as shown in FIG. 2, the exhaust fan motor 4, the filter motor 6, the water supply pump 10, and the microcomputer 13 as control means for controlling the air blowing means 11 are configured.

  In the normal operation during cooking, the exhaust fan motor 4 operates to suck cooking exhaust from the suction port 2, remove oily smoke or dust with the filter 5, and exhaust to the discharge port 3. The filter 5 to which oily smoke or dust adheres is conventionally removed and hand-washed, or a method of washing the filter 5 by assembling the washing water of the water storage tank 7 with the water supply pump 10 and sprinkling the spraying means 9 onto the filter 5. It was the Lord. However, in the latter pattern, there is no need to remove the filter 5 and wash the hands. However, since there is a need to supply washing water, the washing is not frequently performed, and oil stains and dust adhering to the filter 5 are fixed. Therefore, removal by washing with washing water was difficult.

  Therefore, when the sensor 8 detects that there is no washing water in the water storage tank 7, the high speed air generated by the blower unit 11 is applied to the filter 5 without spraying the washing water by the water supply pump 10. The blowing means 11 is connected to a pipe connecting the water supply pump 10 and the spraying means 9, and high-speed wind blows out from the spraying means. As shown in FIG. 3, the spray means 9 has a plurality of circular jet nozzles, and has a structure for increasing the initial jet speed of spray water or high-speed wind. Oil stains and dust adhering to the filter 5 can be blown off by the high-speed air ejected from the spraying means 9. Also, as shown in FIG. 4, since the high-speed air is jetted obliquely downward with respect to the filter 5 as shown in FIG. 4, the oil stains and dust blow off downward, and the oil and dust removed in the same manner as the washing water It is configured to accumulate in the drainage tank. By rotating the filter by the filter motor 6, the high-speed air emitted from the spraying means 9 can clean the entire surface of the filter 5.

(Embodiment 2)
Next, Embodiment 2 of the present invention will be described with reference to the drawings. In addition, the same thing as Embodiment 1 attaches | subjects the same number, and abbreviate | omits the detailed description.

  Oil stains and dust adhering to the filter 5 at the time of cooking adhere to each other over time and are difficult to remove. Therefore, it is desirable to clean the filter 5 in a short time after the use of the range hood. Therefore, after the cooking is finished, the exhaust fan motor 4 is stopped by the microcomputer 13 and then the cleaning mode is set. As long as the cleaning switch is not pressed, the cleaning after the end of the operation is in the cleaning mode by the blowing means 11. The cleaning flow is as follows.

  After the exhaust fan motor 4 stops, the filter motor 6 rotates at a high speed and blows off the attached oil by centrifugal force. After high-speed rotation, the filter motor 6 switches to low-speed rotation, and high-speed air is jetted onto the filter 5 by the air blowing means 11 to remove oil stains and dust. After the filter motor 6 and the air blowing means 11 are stopped, the cleaning mode is completed and the normal mode is entered.

(Embodiment 3)
Next, Embodiment 3 of the present invention will be described with reference to the drawings. In addition, the same thing as Embodiment 1 attaches | subjects the same number, and abbreviate | omits the detailed description.

  As shown in FIG. 6, the microcomputer 13 integrates the driving time of the exhaust fan motor 4 and includes storage means 14 for storing the integrated time.

  The amount of oil dirt and dust adhering to the filter 5 increases as the driving time of the exhaust fan motor 4 increases. Conversely, when the driving time of the exhaust fan motor 4 is short, the filter 5 is not so dirty. Therefore, the microcomputer 13 accumulates the driving time of the exhaust fan motor 4 and shifts to a mode in which the filter 5 is washed after the exhaust fan motor is stopped after a certain operating time has elapsed.

  For example, the driving time of the exhaust fan motor 4 until the filter 5 accumulates oil dirt or dust that needs to be cleaned is 30 minutes. When the exhaust fan motor 4 is continuously driven for 30 minutes or more, the exhaust fan motor 4 enters the cleaning mode after the exhaust fan 4 stops. When the exhaust fan motor 4 is driven for 10 minutes, the microcomputer 13 stores 10 minutes in the storage means 14 as an integration time. Next, assuming that the exhaust fan motor 4 is driven for 20 minutes, the microcomputer 13 adds up to 10 minutes backed up in the storage means 14, recognizes the integrated time of 30 minutes, and enters the cleaning mode. The accumulated time is reset after entering the cleaning mode.

  Here, the cumulative time for shifting to the cleaning mode is set to 30 minutes, but this is not limited to the case where the same utility can be obtained.

  As described above, the range hood of the present invention can also be applied to an application as an air conditioner for cleaning a filter by wind pressure.

DESCRIPTION OF SYMBOLS 1 Range hood 2 Suction port 3 Discharge port 4 Exhaust fan motor 5 Filter 6 Filter motor 7 Water storage tank 8 Sensor 9 Spraying means 10 Water supply pump 11 Blowing means 12 Drainage tank 13 Microcomputer 14 Memory means

Claims (3)

  An exhaust fan motor in a ventilation path connecting the suction port and the discharge port, a filter provided between the suction port and the exhaust fan motor, and the filter. A water storage tank for storing cleaning water for cleaning, a spraying means for spraying and cleaning the cleaning water or air in the water storage tank, and a cleaning water for moving the water storage layer to the spraying means A water supply pump, an air blowing means for sending filter air from the spraying means, and a drain tank for collecting washing water, and cleaning the filter by a combination of water pressure spraying by the water supply pump and air pressure by the air blowing means. A range hood characterized by   A control means for controlling the operation of the exhaust fan motor is provided, and after the control means finishes the operation of the exhaust fan motor, the air pressure is sent to the filter by the blowing means to wash the filter. Item 1. The range hood according to item 1.   2. The range hood according to claim 1, wherein the control means integrates the operation time of the exhaust fan motor, and after the operation time has been operated for a predetermined time, the air pressure is sent to the filter by the blower means to wash the filter. .

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