JP2008142625A - Dehumidifier - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dehumidifier reducing the noise of wind breaking sound caused by the rotation of a fan operating in a state of requiring a silence when a person present in the vicinity of the dehumidifier and at night. <P>SOLUTION: In the dehumidifier provided with the dehumidifier 1 for dehumidifying the moisture in the atmosphere, a controller 21 connecting an illuminance sensor 6 detecting the brightness in the circumference of the dehumidifier 1 and a motor 20 controlled by the controller 21. Since the controller 21 is provided with a speed restriction means 22 restricting the speed of the motor 20 by the detecting result of the illuminance sensor 6, a noise reduction in operation of the dehumidifier is realized when the circumference of the dehumidifier is dark at night. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a dehumidifier that reduces noise during operation.

  As shown in FIG. 15, the conventional dehumidifier includes a blower fan 101 that sucks and discharges air outside the main body provided in the dehumidifier, a hygroscopic material 102 that adsorbs moisture in the passing air, and a hygroscopic material 102. In order to release moisture from the regenerative heater 102, the regenerative heater 103 which is a heating means for heating and regenerating the hygroscopic material 102, the regenerative fan 104 which is a blowing means for circulating the regenerative air through the flow path, and the hygroscopic material 102 are discharged. Control for controlling the operation of the blower fan 101, the regenerative heater 103, and the regenerative fan 104 based on signals from the condenser 105 that condenses moisture, the temperature sensor 106 for detecting the room temperature, and the humidity sensor 107 and the temperature sensor 106. And an operation unit 109 for the user to switch the operation mode. In addition, the regenerative heater 103 is configured to be able to perform switching in a plurality of stages in order to control the heater in stages. The operation unit 109 is provided with an operation off / on switch 110 for starting the operation of the dehumidifier. Further, a tank 112 for storing moisture condensed in the condenser 105 and a suction port 113 for sucking in air containing moisture are provided at the lower part of the main body 111 of the dehumidifier (see, for example, Patent Document 1).

In the above configuration, an outline of the operation of the dehumidifier will be described with reference to FIG. First, the operation of the dehumidifier is started when the user turns off the operation and the on / off switch 110 disposed on the operation unit 109. The control unit 108 drives the energization of the preset number of stages of the blower fan 101 and the regeneration heater 103 and the regeneration fan 104 at the same time according to the indoor temperature and the indoor humidity detected by the temperature sensor 106 and the humidity sensor 107, Further, the rotation of the hygroscopic material 102 is started. As the blower fan 101 is driven by the control unit 108, moisture-containing air flows from the suction port 113. After passing through the rotating hygroscopic material 102, moisture is adsorbed on the hygroscopic material 102, and the dried air is discharged from the outlet. On the other hand, the moisture absorbing material 102 that has adsorbed moisture is supplied with air heated by the regeneration heater 103 by the regeneration fan 104, thereby releasing the moisture and led to the condenser 105. The air that has become high temperature and high humidity is cooled by the air flowing from the suction port 113 in the condenser 105, and moisture is condensed. The condensed moisture is guided to the tank 112 through the inside of the condenser 105 and stored.
JP 2004-264193 A

  In such a conventional dehumidifier, wind noise generated by the rotation of the blower fan 101 and the regeneration fan 104 becomes noise during operation in a situation where quietness is required, such as at night or when there is a person in the vicinity of the dehumidifier. There was a problem of propagating to.

  The present invention solves such a conventional problem, and eliminates wind noise generated by the rotation of a fan during operation in a situation where quietness is required, such as at night or when there is a person near a dehumidifier. It aims at providing the dehumidification apparatus which reduces.

  In order to achieve the above object, the dehumidifying device of the present invention is a dehumidifying device body that dehumidifies moisture in the air, a control device that is connected to an illuminance sensor that detects the brightness around the dehumidifying device body, and the control device. In the dehumidifying apparatus provided with the motor controlled in (1), the control apparatus includes a speed suppressing means for suppressing the speed of the motor based on the detection result of the illuminance sensor.

  By this means, when the surroundings of the dehumidifier main body are dark, such as at night, a dehumidifier can be obtained that reduces noise during operation.

  Further, the other means includes a dehumidifying device body for dehumidifying moisture in the air, a control device connected to a human sensor for detecting a person in the vicinity of the dehumidifying device body, and a motor controlled by the control device. Further, in the dehumidifying apparatus, the control device includes a speed suppression unit that suppresses the speed of the motor based on a detection result of the human sensor.

  By this means, when a person is near the dehumidifier body, a dehumidifier that reduces noise during operation can be obtained.

  According to another means, the control device suppresses output to the display unit according to a detection result of the illuminance sensor in a dehumidifying device having a display unit that displays the setting contents of the operation mode and the operation status. A display output suppression means is provided.

  By this means, when the surroundings of the dehumidifying device main body are dark, such as at night, a dehumidifying device that suppresses display output during operation and saves energy can be obtained.

  According to another means, the control device suppresses output to the display unit according to a detection result of the human sensor in a dehumidifying device having a display unit that displays the setting contents of the operation mode and the operation status. The display output suppression means is provided.

  By this means, when there is no person in the vicinity of the dehumidifying device body, a dehumidifying device that suppresses display output during operation and saves energy is obtained.

  In another aspect, the control device has a speed suppression setting function for setting the speed suppression means to be valid / invalid.

  By this means, it is possible to select whether the user gives priority to speed control or dehumidifying ability, and a dehumidifying device that suits the user's intention is obtained.

  According to another aspect, the control device includes a speed suppression display function for displaying that the speed suppression unit is operating.

  By this means, the user can check the operating status of the speed suppressing means, and a dehumidifying device with improved usability can be obtained.

  In another aspect, the speed suppression means has a plurality of suppression levels for suppressing the speed of the motor, and the suppression level is selected by a suppression level setting switch connected to the control device. A selection function is provided, and the motor speed is suppressed at the suppression level corresponding to the set value of the suppression level setting switch.

  By this means, the user can select the dehumidifying capacity and the priority level of noise reduction, and a dehumidifying device suitable for the user's intention can be obtained.

  Another means is that the control device does not invalidate the speed suppression means within a predetermined time after the speed suppression means starts to suppress the speed of the motor.

  By this means, it is possible to obtain a dehumidifying device having chattering prevention of the operation of suppressing the motor speed based on the detection result of the sensor.

  In another aspect, the control device has a plurality of levels of sensitivity of the illuminance sensor, and an illuminance sensor sensitivity setting function for selecting the sensitivity level by a sensitivity level setting switch connected to the control device. And the detection result of the illuminance sensor is performed at the sensitivity level according to the set value of the sensitivity level setting switch.

  By this means, a dehumidifying device capable of detecting a sensor suitable for the use environment can be obtained.

  According to another means, the control device has a plurality of sensitivity levels of the human sensor, and the human sensor sensitivity setting is selected by a sensitivity level setting switch connected to the control device. Provided with a function, and the detection result of the human sensor is performed at the sensitivity level according to the set value of the sensitivity level setting switch.

  By this means, a dehumidifying device capable of detecting a sensor suitable for the use environment can be obtained.

  ADVANTAGE OF THE INVENTION According to this invention, the dehumidification apparatus which has the effect of reducing the noise of the wind noise generated by rotation of the fan during driving | running in the situation where quietness is calculated | required, such as when there exists a person near the dehumidification apparatus at night, can be provided. .

  The invention according to claim 1 of the present invention is controlled by the dehumidifying device main body for dehumidifying moisture in the air, a control device connected to an illuminance sensor for detecting the brightness around the dehumidifying device main body, and the control device. In the dehumidifying apparatus including the motor, the control device includes a speed suppression unit that suppresses the speed of the motor based on the detection result of the illuminance sensor. When dark, it has the effect of reducing noise during operation.

  The invention described in claim 2 is controlled by the control device connected to a dehumidifying device main body for dehumidifying moisture in the air, a human sensor for detecting a person in the vicinity of the dehumidifying device main body, and the control device. In the dehumidifying apparatus provided with the motor, the control device is configured to include a speed suppressing unit that suppresses the speed of the motor based on the detection result of the human sensor, and a person is located near the dehumidifying device main body. It has the effect of reducing noise during operation.

  According to a third aspect of the present invention, in the dehumidifying device provided with a display unit for displaying the setting contents of the operation mode and the operation status, the control device outputs to the display unit according to the detection result of the illuminance sensor. The display output suppressing means is configured to suppress the display, and when the surroundings of the dehumidifying device body are dark such as at night, the display output during operation is suppressed to save energy.

  According to a fourth aspect of the present invention, in the dehumidifying device provided with a display unit for displaying the setting content of the operation mode and the operation status, the control device is configured to supply the display unit with the detection result of the human sensor. The display output suppression means is configured to suppress the output, and when there is no person in the vicinity of the dehumidifier main body, the display output during operation is suppressed to save energy.

  Further, the invention according to claim 5 is characterized in that the control device has a speed suppression setting function for setting the speed suppression means to be valid / invalid, and the user can control the speed and dehumidify. It is possible to select which one is prioritized, and the usability is improved.

  According to a sixth aspect of the present invention, the control device includes a speed suppression display function for displaying that the speed suppression unit is operating, and the user operates the speed suppression unit. The situation can be confirmed and it has the effect of improving usability.

  According to a seventh aspect of the invention, the speed suppression means has a plurality of suppression levels for suppressing the speed of the motor, and selects the suppression level by a suppression level setting switch connected to the control device. A suppression level selection function to suppress the speed of the motor at the suppression level according to the set value of the suppression level setting switch. It becomes selectable and has the effect of improving usability.

  The invention according to claim 8 is characterized in that the control device does not invalidate the speed suppression means within a predetermined time after the speed suppression means starts to suppress the speed of the motor. It has the effect of preventing chattering of the operation of suppressing the speed of the motor based on the detection result of the sensor.

  In the invention according to claim 9, the control device has a plurality of sensitivity levels of the illuminance sensor, and the sensitivity level is selected by a sensitivity level setting switch connected to the control device. A setting function is provided, and the detection result of the illuminance sensor is performed at the sensitivity level according to the set value of the sensitivity level setting switch, and the sensor can be detected according to the use environment.

  According to a tenth aspect of the present invention, the control device has a plurality of sensitivity levels of the human sensor, and the human sensitivity is selected by a sensitivity level setting switch connected to the control device. A sensor sensitivity setting function is provided, and the detection result of the human sensor is performed at the sensitivity level according to the set value of the sensitivity level setting switch, and the sensor detection suitable for the use environment can be performed. Have

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

(Embodiment 1)
As shown in FIGS. 1 to 2, the main body 1 of the dehumidifying device is equipped with a water storage tank 2 and has an intake port 3 and an outlet 4. Furthermore, it has the operation display part 5 and the illumination intensity sensor 6 which consist of an operation switch and an operation mode lamp.

  In the body 1 of the dehumidifying apparatus, a motor 20, a fan driven by the motor 20, a moisture absorbent that adsorbs moisture in the air, and a moisture absorbent for releasing moisture from the moisture absorbent are regenerated by heating. A regenerative heater, a condenser for condensing moisture released from the moisture absorbent, an air filter, and the like are housed (none of which is not shown).

  By driving the motor 20, humid air in the room is taken in from the air inlet 3, moisture in the air is adsorbed by the hygroscopic agent, and the dehumidified air is discharged from the outlet 4 to dehumidify the room.

  Further, the operation display unit 5 includes a power switch 10a for starting the operation of the dehumidifying device, a dehumidifying switch 10b for selecting the dehumidifying operation mode, a clothing switch 10c for selecting the clothing drying operating mode, and a motor speed suppression level. An operation unit 10 including a suppression level switch 10d to be selected, a speed suppression switch 10e for selecting whether speed suppression is enabled / disabled, and a sensitivity level switch 10f for selecting a sensitivity level of the illuminance sensor, and an operation for displaying that the power is on. A display unit 11a, a dehumidifying operation display unit 11b for displaying the setting state of the dehumidifying operation, a clothing drying operation display unit 11c for displaying the setting state of the clothing drying operation, and a suppression level 1 display unit for displaying the setting level of the motor speed suppression level. 11d, suppression level 2 display part 11e, suppression level 3 display part 11f, and effective setting contents of speed suppression A speed suppression setting display unit 11g to display, a speed suppression operation display unit 11h to display the operation content of the speed suppression, a sensitivity level 1 display unit 11i to display the set sensitivity level of the illuminance sensor, a sensitivity level 2 display unit 11j, and a sensitivity level 3 A display unit 11 including a display unit 11k is provided.

  FIG. 3 is a diagram showing a configuration of the control device 21 and an input / output configuration according to the embodiment of the present invention.

  The illuminance sensor 6 described in FIG. 1 and the operation unit 10 described in FIG. 2 are connected to the control device 21 as inputs. Further, the display unit 11 and the motor 20 described with reference to FIG. Further, the control device 21 has a speed suppression setting function for setting the validity / invalidity of the speed suppression means 22 for suppressing the rotation speed of the motor 20, the display output suppression means 23 for suppressing the output to the display unit 11, and the speed suppression means 22. 24 and a speed suppression display function 25 for displaying the operation status of the speed suppression means 22 and a sensor sensitivity setting function 26 for setting the sensitivity of the connected sensor. Furthermore, the speed suppression means 22 has a suppression level selection function 27 for selecting a plurality of suppression levels.

  Here, although not shown, the control device 21 is composed of electronic components such as a transistor for input / output interface with a microcomputer.

  Further, for example, a pulse width modulation (PWM) type variable voltage current power source is used as the speed suppressing means 22 for controlling the rotation speed of the motor 20.

  FIG. 4 is a diagram showing data stored in the ROM in the microcomputer of the control device 21.

  FIG. 4A is data showing the relationship between the speed suppression level set by the suppression level switch 10d and the motor speed (speed coefficient). FIG. 4B is data showing the relationship between the sensitivity level of the illuminance sensor 6 set by the sensitivity level switch 10f and the sensitivity setting value (sensitivity coefficient).

  5 to 9 are flowcharts for explaining the operation.

  FIG. 5 is a flowchart of operations related to the speed suppression setting function 24.

  In step 1 (hereinafter, step is abbreviated as S), it is determined whether or not there is an input of the speed suppression switch 10e. If there is an input, the process proceeds to S2, and if there is no input, the process ends.

  In S2, it is determined whether or not the setting contents of the speed suppression setting are valid. If valid, the process proceeds to S3, and if invalid, the process proceeds to S4.

  In S3, the speed suppression setting content is set to invalid.

  In S4, the speed suppression setting content is set to be valid.

  As a result, the user can select whether to give priority to speed control or dehumidification capability according to the user's intention, thereby improving usability.

  FIG. 6 is a flowchart of operations related to the speed suppression display function 25 and the display output suppression means 23.

  In S11, it is determined whether the speed suppression means 22 is operating. If it is in operation, the process proceeds to S12. If it is not in operation, the process proceeds to S14.

  In S12, ON output is performed to the speed suppression operation display unit 11h.

  In S13, the brightness of each display unit of the display unit 11 is reduced.

  In S14, OFF output is performed to the speed suppression operation display unit 11h.

  As a result, the user can confirm the operation status of the speed suppressing means 22 and the usability is improved.

  In addition, when the surroundings of the dehumidifying device body are dark such as at night, display output during operation can be suppressed to save energy.

  FIG. 7 is a flowchart of operations related to the suppression level selection function 27.

  In S21, it is determined whether or not the speed suppression level switch 10d has been input. If there is an input, the process proceeds to S22, and if there is no input, the process ends.

  In S22, it is determined whether the speed suppression level being set is level 3, which is the maximum level. If it is the maximum level, the process proceeds to S23, and otherwise, the process proceeds to S24.

  In S23, the minimum level 1 is set as the speed suppression level.

  In S24, a level one level higher than the level being set is set as the speed suppression level.

  As a result, the user can select the priority of dehumidification capability and noise reduction according to the user's preference, and the usability is improved.

  FIG. 8 is a flowchart of operations related to the sensor sensitivity setting function 26.

  In S31, it is determined whether or not there is an input from the sensitivity level switch 10f. If there is an input, the process proceeds to S32. If there is no input, the process proceeds to S34.

  In S32, it is determined whether the sensitivity level being set is level 3, which is the maximum level. If it is the maximum level, the process proceeds to S33, and otherwise, the process proceeds to S34.

  In S33, the minimum level 1 is set as the sensitivity setting level.

  In S34, a level higher than the level being set is set as the sensitivity setting level.

  This makes it possible to select sensor detection that suits the usage environment and improve usability.

  FIG. 9 is a flowchart of the operation related to the speed suppressing means 22.

  In S41, it is determined whether or not the vehicle is in operation. If it is in operation, the process proceeds to S42, and if it is stopped, the process proceeds to S48.

  In S42, if the setting content of the speed suppression setting function 24 is valid setting, the process proceeds to S43, and if invalid, the process proceeds to S48.

  In S43, the value of the illuminance sensor 6 is read.

  In S44, the read value of the illuminance sensor 6 read in S43 is compared with the sensitivity setting value set by the sensor sensitivity setting function 26. The sensitivity setting value is determined by a sensitivity coefficient corresponding to the sensitivity level in FIG. For example, when the sensitivity setting value of sensitivity level 1 is 512, the sensitivity setting value of sensitivity level 2 is 512 × 0.8 = 409, and the higher the sensitivity level, the brighter the illuminance around the body 1 of the dehumidifier. Become. If the read value of the illuminance sensor 6 is equal to or less than the sensitivity setting value, the process proceeds to S45, and otherwise, the process proceeds to S47.

  In S45, the speed of the motor 20 is reduced. The motor speed is determined by a speed coefficient corresponding to the suppression level shown in FIG. For example, in the case of suppression level 2, the motor speed is 0.6 times the full speed.

  In S46, the execution time after the start of suppressing the speed of the motor 20 is counted.

  In S47, when the determination result in S44 deviates from the condition for suppressing the speed of the motor 20, it is determined whether the execution time from the start of suppressing the speed of the motor 20 has elapsed for a predetermined time. Here, the predetermined time is set to 5 minutes in consideration of an operation in which the user turns on / off illumination at night. Before the predetermined time elapses from the start of the suppression of the speed of the motor 20, the process proceeds to S45, and when the predetermined time elapses, the process proceeds to S48.

  In S48, the counter of the execution time after the start of suppressing the speed of the motor 20 is cleared.

  Thereby, when the periphery of the dehumidifying device main body is dark such as at night, it is possible to reduce noise during operation.

  Further, chattering of the operation of suppressing the speed of the motor 20 based on the detection result of the illuminance sensor 6 can be prevented.

  The operations described above with reference to FIGS. 3 to 9 are implemented in the form of a microcomputer program in which the ROM, RAM, counter, etc. work together in the microcomputer of the control device 21 described above.

(Embodiment 2)
FIG. 10 is a diagram showing the configuration of the dehumidifying device according to the embodiment of the present invention. FIG. 11 is a diagram showing a configuration of the operation display unit 5 according to the embodiment of the present invention. FIG. 12 is a diagram showing a configuration of the control device 21 and an input / output configuration according to the embodiment of the present invention.

  10 to 12, the difference from the first embodiment is that a human sensor 30 that detects a person near the main body 1 of the dehumidifying device is provided as a sensor connected to the control device 21. 10-12, the same code | symbol is used about the same component as Embodiment 1, and the description is abbreviate | omitted.

  FIG. 13 is a diagram showing data stored in the ROM in the microcomputer of the control device 21.

  FIG. 13 is data showing the relationship between the sensitivity level of the human sensor 30 set by the sensitivity level switch 10f and the sensitivity setting value (sensitivity coefficient).

  FIG. 14 is a flowchart of the operation related to the speed suppressing means 22 according to the embodiment of the present invention.

  14 differs from the first embodiment in that the value of the human sensor 30 is read in S63.

  In S 64, the read value of the human sensor 30 read in S 63 is compared with the sensitivity setting value set by the sensor sensitivity setting function 26. The sensitivity setting value is determined by a sensitivity coefficient corresponding to the sensitivity level in FIG. For example, when the sensitivity setting value of sensitivity level 1 is 512, the sensitivity setting value of sensitivity level 3 is 512 × 0.3 = 153, and the higher the sensitivity level is, the higher the sensitivity setting value is, the movement of the person near the body 1 of the dehumidifier Reacts sensitively. If the read value of the human sensor 30 is equal to or less than the sensitivity setting value, the process proceeds to S45, and otherwise, the process proceeds to S47.

  Thereby, when there is a person in the vicinity of the main body 1 of the dehumidifier, it is possible to reduce noise during operation.

  Moreover, when there is no person in the vicinity of the main body 1 of the dehumidifier, display output during operation can be suppressed to save energy.

  Further, chattering of the operation of suppressing the speed of the motor 20 based on the detection result of the human sensor 30 can be prevented.

  The technology that suppresses the motor speed based on the detection result of the illuminance sensor or the human sensor according to the present invention can reduce noise during driving at night or when there is a person in the vicinity. Applicable to humidifiers.

1 is an external view of a dehumidifier according to Embodiment 1 of the present invention. Front view of the operation display unit of the dehumidifier Diagram showing the configuration of the dehumidifier The figure which shows the data memorize | stored in the control apparatus of the dehumidifier ((a) The figure which shows the relationship between the speed suppression level set with the suppression level switch, and the speed (speed coefficient) of a motor, (b) Set with a sensitivity level switch The figure shows the relationship between the sensitivity level of the illuminated illuminance sensor and the sensitivity setting value (sensitivity coefficient) The flowchart explaining operation | movement of the speed suppression setting function of the control apparatus of the dehumidifier The flowchart explaining operation | movement of the display output suppression means and speed suppression display function of the control apparatus of the dehumidifier The flowchart explaining operation | movement of the speed suppression setting function of the control apparatus of the dehumidifier Flowchart explaining operation of sensor sensitivity setting function of control device of same dehumidifying device Flowchart for explaining the operation of the speed suppression means of the control device of the dehumidifier External view of dehumidification apparatus of Embodiment 2 of this invention Front view of the operation display unit of the dehumidifier Diagram showing the configuration of the dehumidifier The figure which shows the data memorize | stored in the control apparatus of the dehumidification apparatus Flowchart for explaining the operation of the speed suppression means of the control device of the dehumidifier Conventional dehumidifier configuration diagram

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Water storage tank 3 Intake port 4 Outlet 5 Operation display part 6 Illuminance sensor 10 Operation part 11 Display part 20 Motor 21 Control apparatus 22 Speed suppression means 23 Display output suppression means 24 Speed suppression setting function 25 Speed suppression display function 26 Sensor Sensitivity setting function 30 Human sensor

Claims (10)

In the dehumidifying device provided with a dehumidifying device main body for dehumidifying moisture in the air, a control device connected to an illuminance sensor for detecting the brightness around the dehumidifying device main body, and a motor controlled by the control device, the control The apparatus includes a speed suppressing unit that suppresses a speed of the motor based on a detection result of the illuminance sensor. In the dehumidifying device provided with a dehumidifying device main body for dehumidifying moisture in the air, a control device connected to a human sensor for detecting a person in the vicinity of the dehumidifying device main body, and a motor controlled by the control device, the control The dehumidifying apparatus is characterized by comprising speed suppression means for suppressing the speed of the motor based on the detection result of the human sensor. The control device suppresses output to the display unit according to a detection result of the illuminance sensor in a dehumidifying device including a display unit that displays operation mode setting contents and an operation state. The dehumidifying device described. The control device includes a display output suppression unit that suppresses output to the display unit based on a detection result of the human sensor in a dehumidifying device including a display unit that displays the setting content of the operation mode and the operation status. The dehumidifying device according to claim 2. The dehumidifying device according to claim 1 or 2, wherein the control device includes a speed suppression setting function for setting the speed suppression means to be valid / invalid. The dehumidifying device according to claim 1 or 2, wherein the control device has a speed suppression display function for displaying that the speed suppression means is operating. The speed suppression means has a plurality of suppression levels for suppressing the speed of the motor, and includes a suppression level selection function for selecting a suppression level by a suppression level setting switch connected to the control device. The dehumidifying device according to claim 1, wherein the motor speed is suppressed at the suppression level corresponding to a set value of the switch. 3. The dehumidifying device according to claim 1, wherein the control device does not invalidate the speed suppression unit within a predetermined time after the speed suppression unit starts suppressing the speed of the motor. The control device has a plurality of sensitivity levels of the illuminance sensor, and has a illuminance sensor sensitivity setting function for selecting the sensitivity level by a sensitivity level setting switch connected to the control device, and the setting of the sensitivity level setting switch The dehumidifying device according to claim 1, wherein a detection result of the illuminance sensor is performed at the sensitivity level according to a value. The control device has a plurality of levels of sensitivity level of the human sensor, and includes a human sensor sensitivity setting function for selecting the sensitivity level by a sensitivity level setting switch connected to the control device, the sensitivity level setting switch The dehumidifying device according to claim 2, wherein the detection result of the human sensor is performed at the sensitivity level corresponding to the set value.

Images