JP2017180851A - Range hood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a range hood reducing energy loss even when ventilation is operated for 24 hours.SOLUTION: In a range hood, lighting intensity detection means 13 is provided on a front surface 8 on a side of an indoor 17 of a hood 1 to control a ventilation air volume in conjunction with the brightness of the indoor 17. Such a structure results in detecting the brightness of the indoor 17 by the lighting intensity detection means 13, always reducing the ventilation air volume lower than usual when detecting the indoor 17 gets dark, and always restoring the ventilation air volume to the normal air volume when the indoor 17 gets bright so as to reduce the energy loss even when the ventilation is operated for 24 hours.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a range hood having a 24-hour ventilation operation function.

  Conventionally, in this type of range hood, when a person is present in front of the cooking utensil, the lighting fixture provided in the range hood is turned on. When a person is not present in front of a cooking utensil, it is known that a lighting fixture provided in a range hood is turned off (see, for example, Patent Document 1).

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

  As shown in FIG. 2, a blower unit 104 is accommodated in a hood 101 whose bottom surface is open. Below, a lighting fixture 109 that illuminates the cooking utensil B such as a gas stove is provided, and a human sensor 111 that detects the presence of a person standing in front of the cooking utensil B is provided on the hood 101. When the human sensor 111 detects the presence of a person for a certain period of time, the lighting device 109 is turned on. When the human sensor 111 stops detecting the presence of a person for a certain period of time, the lighting device 109 is turned off.

JP 9-318125 A

  In recent years, such a conventional range hood is generally provided with a function of 24-hour ventilation operation, and is used for the purpose of operating and ventilating dirty air and odors for 24 hours. Ventilation operation was carried out even during absences where there was no presence or when people were sleeping, and there was a problem of excessive ventilation and energy loss.

  Then, this invention solves the said conventional subject, and it aims at providing the range hood which can reduce an energy loss even if it carries out ventilation operation for 24 hours.

  In order to achieve this object, in the range hood, the present invention provides an illuminance detection means on the surface of the hood that is in contact with the room, and controls the ventilation air volume in conjunction with the brightness of the room. This achieves the intended purpose.

  According to the present invention, in the range hood, the illuminance detecting means is provided on the surface on the indoor side of the hood, and the ventilation air volume is controlled in conjunction with the brightness of the room. When the brightness of the room is detected and the room is dark, the air volume of the 24-hour ventilation operation is lowered below the normal level. When the room becomes bright, the air volume of the 24-hour ventilation operation is returned to the normal air volume. Therefore, it is possible to obtain an effect that energy loss can be reduced even if the ventilation operation is performed for 24 hours.

  Further, in the range hood, the illuminance detection means is provided in the hood provided with the illumination unit, and the illumination intensity of the illumination unit is controlled in conjunction with the brightness of the room. When it is detected that the room is dark, the light intensity of the illumination unit is lowered. When the room is bright, the light intensity of the illumination unit is returned to the normal state. In addition, an effect that energy loss can be reduced can be obtained.

Side structure figure which shows the range hood of Embodiment 1 of this invention Side view of a conventional range hood

  The range hood according to claim 1 of the present invention has a configuration in which an illuminance detection means is provided on a surface on the indoor side of the hood, and the ventilation air volume is controlled in conjunction with the brightness of the room. As a result, when the brightness of the room is detected by the illuminance detection means and it is detected that the room is dark, the normal ventilation air volume is lowered below the normal level, and when the room is bright, the normal ventilation air volume is reduced to the normal level. Since the air volume is returned to the air volume, the energy loss can be reduced even if the ventilation operation is performed for 24 hours.

  Further, in the range hood, the hood provided with the illumination unit may be provided with illuminance detection means, and the illuminance of the illumination unit may be controlled in conjunction with the brightness of the room. As a result, the brightness of the room is detected by the illuminance detection means, and when it is detected that the room is dark, the brightness of the lighting unit is lowered, and when the room is bright, the brightness of the lighting unit is set to the normal state. As a result, the energy loss can be reduced even if the ventilation operation is performed for 24 hours.

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

(Embodiment 1)
As shown in FIG. 1, a rectangular hood 1 is provided in a cooking chamber 16 for gas, IH, or the like in a room 17. And the box-shaped fan box 10 comprised by the internal ventilation path 6 is attached above the food | hood 1. As shown in FIG. An adapter 12 having an opening for discharging air is attached above the fan box 10. The adapter 12 is provided with an exhaust duct 11 connected to other than the room 17. A centrifugal blower 4 having a centrifugal fan 3 is provided inside the fan casing 2. And the ventilation path 6 is comprised by the smooth shape so that the air resistance of the air suck | inhaled toward the downward direction outside the suction inlet 7 of the fan casing 2 may become small.

  The grease filter 9 is attached to the inside of the hood 1 so as to cover the air inlet 6 so as to cover the ventilation path 6.

  And the food | hood 1 is provided with the illumination intensity detection means 13 which illuminates the cooking appliance 16 grade | etc.,. The illumination intensity of the illumination 14 such as an LED provided on the ceiling 18 of the room 17 is detected and connected to a control unit (not shown) that controls the operation of the motor 5 and the illumination unit 15.

  With the above configuration, as shown in FIG. 1, the illuminance detection means 13 detects light emitted from the illumination 14 in the room 17 or light entering from a window or the like (not shown) in the room 17 when being ventilated for 24 hours. Detect with. When the room 17 becomes dark, it is determined that the cooker 16 is not cooking, and the output of the motor 5 is weakened to reduce the amount of air generated from the centrifugal fan 3, thereby reducing the amount of wasteful exhaust air. Therefore, the power consumption of the motor 5 can be reduced and energy loss can be reduced.

  Further, when the room 17 becomes bright, the output of the motor 5 is returned to the normal state, the air volume generated from the centrifugal fan 3 is returned to the normal air volume, and the state is automatically returned to a state satisfying the necessary exhaust air volume. Can do.

  Further, when the illuminance detection means 13 detects light emitted from the illumination 14 in the room 17 or light entering from a window (not shown) in the room 17 and the room 17 becomes dark, the illumination provided on the front lower surface of the hood 1. The illuminance output of the unit 15 is lowered, and the illuminance illuminating the cooker 16 is lowered.

  Thereby, the power consumption of the illumination part 15 can be reduced by reducing the illuminance from the useless illumination 14, and the energy loss can be reduced. Further, when the room 17 becomes bright, the output of the illumination unit 15 is returned to the normal state, and the illuminance emitted from the illumination unit 15 is returned to the normal state, thereby securing the necessary illuminance to illuminate the cooking device 16. it can.

  The range hood according to the present invention enables energy loss to be reduced even with a 24-hour ventilation operation, and is thus useful as a ventilation facility having a constant ventilation function.

DESCRIPTION OF SYMBOLS 1 Hood 2 Fan casing 3 Centrifugal fan 4 Centrifugal fan 5 Motor 6 Ventilation path 7 Suction port 8 Surface 9 Grease filter 10 Fan box 11 Exhaust duct 12 Adapter 13 Illuminance detection means 14 Illumination 15 Illumination part 16 Cooker 17 Indoor 18 Ceiling

Claims (2)

In the range hood, an illuminance detecting means is provided on the indoor surface of the hood, and the ventilation air volume is controlled in conjunction with the brightness of the room. In the range hood, an illuminance detection means is provided in the hood provided with the illumination unit, and the illuminance of the illumination unit is controlled in conjunction with the brightness of the room.

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