JP2017215112A - Humidifier - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a humidifier capable of determining whether to perform sterilization operation and drying operation according to an atmospheric temperature.SOLUTION: In normal operation mode, it is determined whether a temperature detected by a suction air temperature sensor 28 is 10°C or higher, an integration time in which 10°C or higher is detected is counted when the temperature detected by the suction air temperature sensor 28 is 10°C or higher, and the normal operation mode is continued without entering cleaning mode or drying mode when the time after the start of operation is 20 hours or longer and the integral time in which the temperature detected by the suction air temperature sensor 28 is 10°C or higher is shorter than one hour, thereby preventing cooling efficiency in a refrigerator from decreasing as a heating heater 19 is driven to blow hot air out of a blowout port 2, and also preventing a freshness holding state of ornamental flowers and fruits in the refrigerator from becoming worse as there is a time in which no humidifying air is blown.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a humidifying device that supplies humidified air containing mist to a room.

  Conventionally, in this type, there is a humidifier that performs a mist operation in which humidified air containing mist is generated from the water in the reservoir chamber by mist generating means and the humidified air is blown into the room by a blower fan, and the mist operation ends. Then, after the water in the water storage chamber is replaced, a sterilization operation is performed in which the water in the water storage chamber is heated by a heater, and when the sterilization operation ends, the water in the water storage chamber is cooled and drained. After that, by carrying out a drying operation in which the water storage chamber is dried with a blower fan, bacteria are prevented from growing in the water storage chamber and a clean space is maintained. (For example, Patent Document 1)

JP-A-2015-222156

  However, in this conventional device, when a humidifier is installed in the refrigerator for the purpose of keeping the freshness of the florets and fruits, the water in the water storage chamber is heated by the heater during the sterilization operation performed after the mist operation is completed. As a result, the heated air is exhausted from the appliance body and the temperature inside the refrigerator is increased, increasing the cooling load of the refrigerator and increasing power consumption, and performing sterilization operation and drying operation. Since humidified air cannot be blown from the appliance body at times, the relative humidity in the refrigerator temporarily rises during sterilization operation and drying operation, and the freshness maintenance state of flowers and fruits can be maintained. There was a problem that disappeared.

  When a humidifier is installed in a constantly cool space such as a refrigerator, it has been confirmed that bacteria do not grow in the water storage chamber without sterilization or drying. Therefore, it is possible to change the setting so that the sterilization operation and the drying operation are not performed when the instrument body is installed in a refrigerator or the like, but the time and effort to change the setting when installing the instrument body in the refrigerator or the like increases. If the temperature inside the refrigerator continues to rise, such as by ventilating the inside of the refrigerator or switching the inside of the refrigerator that has been used for refrigerated storage to room temperature storage, remove the germs that have formed near the water storage room. There was room for improvement because it was assumed that bacteria would not be used.

In order to solve the above-mentioned problems, in claim 1 of the present invention, a device main body, a water storage chamber in the device main body for storing water, a heater for heating water in the water storage chamber, Mist generating means for generating mist from water, a blower fan for performing mist operation for blowing humidified air containing mist generated by the mist generating means from the blower opening, and an intake air temperature for detecting the ambient temperature around the instrument body A sensor,
If it is determined that the mist operation has been continued for a predetermined time or longer, the sterilization operation in which the heater is heated to sterilize the water storage chamber and the water in the water storage chamber is drained, and the air blowing is performed. A controller that drives a fan to perform drying operation for drying the water storage chamber,
After the instruction to start the mist operation is issued, the control unit does not perform the sterilization operation and the drying operation if the ambient temperature detected by the intake air temperature sensor is less than a predetermined value, and the mist operation It is characterized by continuing.

  According to a second aspect of the present invention, the controller detects that the ambient temperature detected by the intake air temperature sensor is greater than or equal to a predetermined value after a predetermined elapsed time elapses after an instruction to start the mist operation is issued. When the counted time is less than a predetermined time, the sterilization operation and the drying operation are not performed, and the mist operation is continued.

  Moreover, in Claim 3, the said control part will perform the said disinfection operation and the said drying operation, if the time which continued the said mist operation without implementing the said disinfection operation and the said drying operation exceeds predetermined | prescribed upper limit time. It is characterized by implementation.

  According to a fourth aspect of the present invention, the mist generating means includes a cylindrical rotating body that submerses a lower end in the water storage chamber and pumps up and disperses water by rotation, a mist motor that rotationally drives the rotating body, and the rotating body. It is characterized by the fact that it is composed of a colliding body with which water scattered by the rotation of the colliding body collides.

  According to this invention, after the start instruction of the mist operation is issued, if the ambient temperature detected by the intake air temperature sensor is less than the predetermined value, the mist operation is continued without performing the sterilization operation and the drying operation. If it is estimated that the main body of the appliance is installed in a room with a low ambient temperature such as a refrigerator, the sterilization operation for temporarily blowing high-temperature humidified air into the room and the drying operation in which the humidified air is not blown are not performed. In order to continue the mist operation, the cooling efficiency in the refrigerator is prevented from deteriorating and the relative humidity in the room is prevented from being lowered, so that the freshness of the florets and fruits can be appropriately maintained.

  In addition, the time during which the ambient temperature detected by the intake air temperature sensor is equal to or higher than a predetermined value is counted from when the mist operation start instruction is issued until the predetermined elapsed time elapses. If it is less than the time, it is assumed that the space where the appliance body is installed is a space where the ambient temperature is always low, such as a refrigerator, and the mist operation is continued without performing the sterilization operation and the drying operation. Therefore, it does not increase the cooling load of the refrigerator, and since the relative humidity in the room does not decrease by continuing the mist operation, it can maintain the freshness of the florets and fruits, and also at ventilation and room temperature When the temperature around the instrument main body is increased by switching to the storage, it is possible to reliably prevent the growth of bacteria by performing the sterilization operation and the drying operation.

  In addition, if the time for which the mist operation is continued without performing the sterilization operation and the drying operation exceeds a predetermined upper limit time, the sterilization operation and the drying operation are performed, so the operation of opening the refrigerator for a short time is performed. Even if the risk of germs increases, the ambience of the room is not high for a long time and the mist operation is continued for a long time. The risk of germs in the room can be minimized.

  The mist generating means includes a cylindrical rotating body that submerses the lower end of the water storage chamber, pumps up water by rotation, and scatters, a mist motor that rotates the rotating body, and water scattered by the rotation of the rotating body. Since it is composed of a collision body that collides, a large amount of humidified air can be generated with a simple structure that pumps the water in the water storage chamber with a rotating body and collides with the collision body, so that assembly is easy and low A mist generating means can be constructed at a low cost.

The perspective view explaining the external appearance of one Embodiment of this invention The figure explaining the state which installed the same embodiment in the refrigerator Schematic configuration diagram of the embodiment Control block diagram of the embodiment The figure explaining the operation part of the embodiment The flowchart explaining the operation from the start to the end of the operation of the same embodiment The flowchart explaining the operation after the normal operation of the embodiment The figure explaining another embodiment of the invention

Next, a mist generator according to an embodiment of the present invention will be described with reference to the drawings.
DESCRIPTION OF SYMBOLS 1 is an instrument main body, 2 is the ventilation opening formed in the upper part of the instrument main body 1, and the some louver 3 was installed, 4 is an upper surface panel which comprises the front upper part of the instrument main body 1, and 5 comprises the lower front part of the instrument main body 1 A bottom panel, 6 is provided with a plurality of switches and an operation unit for performing various operation commands, 7 is a breaker cover that hides a breaker (not shown), and the appliance body 1 is installed in a refrigerator as shown in FIG. Thus, the indoor air taken into the appliance main body 1 is blown as humidified air so that the refrigerator is kept at a low temperature and high humidity, and the freshness of the florets and fruits in the refrigerator is realized.

  Reference numeral 8 denotes a water storage chamber that is at a substantially interrupted height position in the instrument body 1 and stores a predetermined amount of water. In this water storage chamber 8, a cylinder that is pivotally supported by the drive shaft 9 with its lower end submerged in water. A rotating body 10 is provided.

  The rotating body 10 has a hollow inverted conical shape and its circumference gradually expands upward. The rotating body 10 is connected to a drive shaft 9 to drive a mist motor 11 that rotates the rotating body 10. The water in the water storage chamber 8 is pumped up by the centrifugal force of rotation caused by the rotation, the water is pushed up along the outer wall and the inner wall of the rotating body 10, and the pushed-up water is scattered around the outer wall of the rotating body 10. At the same time, the water pushed up along the inner wall of the rotator 10 is scattered in the outer peripheral direction from a plurality of scattering ports (not shown) formed at the upper end of the rotator 10.

  Reference numeral 12 denotes a cylindrical porous body that is located on the outer periphery of the rotating body 10 at a predetermined interval and rotates together with the rotating body 10. The porous body 12 includes a plurality of slits, a metal mesh, and punching metal on the entire peripheral wall. A porous portion 13 as an impact body made of, for example, is installed, and the rotator 10, the mist motor 11 and the porous portion 13 constitute a mist generating means.

  The mist motor 11 that constitutes the mist generating means is driven, and the water in the water storage chamber 8 is pumped up by the centrifugal force generated by rotating the rotating body 10 and air is scattered, so that water droplets that have passed through the porous portion 13 are generated. By being crushed, water is refined and a large amount of mist having a particle size of nanometer (nm) (hereinafter referred to as fine mist) is generated.

  Reference numeral 14 denotes a blower fan that is installed in the lower panel 5 and sucks indoor air by being driven at a predetermined rotational speed and blows air upward in the instrument body 1. Reference numeral 15 denotes a water reservoir that connects the water storage chamber 8 and the air outlet 2. A ventilation path for sending humidified air containing fine mist generated in the chamber 8 to the blower opening 2, 16 is installed in the middle of the blower path 15 to separate large-diameter water droplets contained in the humidified air, and humidified air containing fine mist Is a plate-like filter that allows a large amount of air to be blown into the room from the blower opening 2, and when the blower fan 14 is driven at a predetermined number of rotations, the air is sucked from the suction opening 17 formed on the bottom surface of the instrument body 1. The room air is blown in the upper direction of the appliance body 1, the room air blown by the blower fan 14 flows from the suction path 18 formed on the upstream side of the water storage chamber 8, and the room air that flows into the water storage chamber 8 is Contains fine mist The humidified air becomes humidified air, and the humidified air rises in the blowing path 15 and is blown into the room from the blowing port 2 connected to the blowing path 15 to supply the humidified air containing fine mist into the room. Can do.

  Reference numeral 19 denotes a heater that is installed in the water storage chamber 8 and heats the water storage. The heater is installed on the outer wall of the water storage chamber 8 and is turned ON / OFF so that the temperature detected by the water storage temperature sensor 20 that detects the water storage temperature becomes a predetermined temperature. The state is switched as appropriate.

  21 is a water level sensor that is installed in the water storage chamber 8 and detects the water level when the float moves up and down. When the water level in the water storage chamber 8 decreases and falls below a predetermined water level, an OFF signal is output and the water level increases. When the water level exceeds a predetermined level, an ON signal is output, and when the water level further rises and the water storage chamber 8 is full, a full signal is output.

  22 is a water supply pipe connected to the side surface of the water storage chamber 8 and supplying city water into the water storage chamber 8. During the piping of the water supply pipe 22, an electromagnetic valve is opened and closed to control water supply into the water storage chamber 8. And a pressure reducing valve 24 for reducing the water pressure to a predetermined value.

  A drain pipe 25 is connected to the bottom of the water storage chamber 8 and is composed of a hard vinyl chloride pipe for draining the water in the water storage chamber 8 to the outside of the main body 1. A solenoid valve is provided in the middle of the pipe of the drain pipe 25. A drainage valve 26 is provided as a drainage switching means that opens and closes and controls drainage of the water in the water storage chamber 8.

  27 is installed on the wall surface of the air blowing port 2 and detects the temperature of the humidified air blown from the air blowing port 2 into the room. 28 is installed in the vicinity of the air blowing fan 14, An intake air temperature sensor 29 for detecting the atmospheric temperature of the indoor air sucked into the air inlet 17 provided with a certain copper net is installed in the vicinity of the intake air temperature sensor 28, and the relative humidity in the room in which the appliance body 1 is installed. Is a humidity sensor that changes the rotational speed of the mist motor 11 and the blower fan 14 based on the temperature and relative humidity detected by each sensor, and switches the heater 19 between the ON and OFF states.

  The operation unit 6 switches the ON / OFF state of the operation switch 30 for instructing the start and stop of the mist operation and the ON / OFF state of the heater 19 to change the water storage temperature in the water storage chamber 8 so From three levels of humidification levels in which the ratio of the amount of water that can be contained in the humidified air is changed, and an auto mode in which the humidity level is changed so that the humidity detected by the humidity sensor 29 becomes a preset humidity. The selectable humidification switch 31, the three-stage airflow level at which the rotational speed of the mist motor 11 and the blower fan 14 can be set, and the humidity set by the humidity sensor 29 become the preset humidity. An air volume switch 32 that can be selected from an Aode mode that changes the air volume level, and a timer that sets a start time and a stop time of mist operation for supplying humidified air into the room Regardless of the setting of the selector switch 33, the humidifying switch 31 and the air volume switch 32, an eco mode switch 34 for setting an eco mode that is a mist operation with low power consumption, and a time setting switch 35 for setting the current time And a child lock switch 36 that prohibits operations other than operation stop by operating the switch.

  Further, lamps corresponding to the respective switches are provided above the respective switches of the operation unit 6, and an operation lamp 37 that is turned on when the operation switch 30 is operated, and a sterilization operation that starts when the mist operation continues for a predetermined time or more. A sterilization lamp 38 that is sometimes turned on, a humidification level lamp 39 that displays the humidification level set by the humidification switch 31 with a numerical value of 1 to 3 and A indicating the auto mode, and the airflow level set by the airflow switch 32 is 1 When the start / stop of the mist operation is set by the timer changeover switch 33, the timer lamp 41 that lights up the respective lamps, and the eco mode switch 34. Is set by the eco mode lamp 42 that lights up when the eco mode is set and the time setting switch 35 is turned on. A time display panel 43 that displays the current time, and a child lock lamp 44 that lights When the child lock switch 36 is operated is provided.

  Reference numeral 45 denotes a control unit composed of a microcomputer for controlling the operation content and the opening / closing of the valve based on the detection value detected by each sensor and the setting content of each switch provided on the operation unit 6. The mist motor control means 46 for driving the fan at a predetermined rotational speed, the blower fan control means 47 for driving the blower fan 14 at the predetermined rotational speed, and the water temperature in the water storage chamber 8 by switching the ON / OFF state of the heater 19. The heater control means 48 for controlling the time, the elapsed time counting means 49 for counting the time elapsed since the instruction to start the mist operation was issued, and the intake air temperature sensor 28 during the elapsed time counted by the elapsed time counting means 49. And integrated time counting means 50 for integrating and counting the time during which the ambient temperature detected at 10 is a predetermined value of 10 ° C. or higher.

Next, the operation from the start to the end of the operation in this embodiment will be described based on the flowchart of FIG.
First, when the operation switch 30 of the operation unit 6 is operated or the operation start time set by the timer changeover switch 33 is reached, the control unit 45 starts counting elapsed time with the elapsed time counting means 49, and When the drain valve 26 is opened to drain the water in the water storage chamber 8 and an OFF signal is detected by the water level sensor 21, the water supply valve 23 is opened to perform a cleaning operation for washing the water storage chamber 8 with water for a predetermined time. When the water has passed, the drain valve 26 is closed to supply water flowing in from the water supply valve 23 into the water storage chamber 8, and when an ON signal is detected by the water level sensor 21, a predetermined amount of water has been supplied into the water storage chamber 8. Then, the water replacement mode for closing the water supply valve 23 is performed (step S101).

  When the water replacement mode in step S101 is completed, the control unit 45 turns on the heater 19 with the heater control means 48 until the water storage temperature detected by the water storage temperature sensor 20 is equal to the room temperature, and the mist motor 11 is turned on. And the starting mode which performs the starting operation | movement controlled by the mist motor control means 46 and the ventilation fan control means 47 is performed so that the ventilation fan 14 may become predetermined | prescribed rotation speed (step S102).

  When the start-up mode in step S102 ends, the control unit 45 causes the mist motor 11 and the blower fan 14 to rotate at a predetermined number of rotations based on the humidification level and the airflow level set by the humidification switch 31 and the airflow switch 32. The rotational speed is controlled by the mist motor control means 46 and the blower fan control means 47 to drive, and the ON / OFF state of the heater 19 is switched by the heater control means 48 to control the humidification level and the air flow level. The normal operation mode for executing the mist operation within the combined predetermined temperature range is performed (step S103). In addition, the integrated time count means 50 calculates an integrated value of the time during which the temperature detected by an intake air temperature sensor 28 described later during the normal operation mode is equal to or higher than a predetermined value.

  In the normal operation mode, the humidification level can be selected from 1 to 3 and auto by the humidification switch 31. In the humidification level 1, the heater 19 is fixed in the OFF state, and in the humidification level 2, the air temperature sensor. 27, the ON / OFF state of the heater 19 is changed so that the air temperature detected by the air intake temperature sensor 28 becomes the atmospheric temperature −2 ° C. detected by the intake air temperature sensor 28. In the state of the humidification level 3, the air temperature is detected by the air temperature sensor 27. The ON / OFF state of the heater 19 is changed so that the air temperature to be detected is the atmospheric temperature detected by the intake air temperature sensor + 1 ° C., and the humidity sensor 29 is detected when the humidification level is selected to be auto. The humidification level is automatically selected so that the relative humidity is around 50% RH.

  In this way, by setting each humidification level so that the temperature of the humidified air blown into the room from the air outlet 2 becomes a value close to the atmospheric temperature in the room, the amount of saturated water vapor depending on the indoor atmospheric temperature is mist-operated. This prevents excess air from being blown by humidified air and causes water droplets to adhere to the vicinity of the air outlet 2 and in various places in the room.

  In the normal operation mode, the air flow level can be selected from 1 to 3 and auto by the air flow switch 32. In the air flow level 1, the mist motor 11 is driven at 1000 rpm and the blower fan 14 is driven at 400 rpm. In the state of 2, the mist motor 11 is driven at 1200 rpm and the blower fan 14 is driven at 600 rpm. In the state of the air volume level 3, the mist motor 11 is driven at 1400 rpm and the blower fan 14 is driven at 800 rpm, and the air volume level is automatically selected. When it is done, the air volume level is automatically selected so as to be the same level as the humidification level selected by the humidification switch 31.

  If it is determined that the operation switch 30 has been operated during the normal operation mode of step S103 or the stop time set by the timer changeover switch 33 has been reached and there has been an instruction to end the mist operation, the control unit 45 uses the elapsed time counting means 49. The elapsed time count and the accumulated time count in the accumulated time counting means 50 are reset and stopped, and the mist motor 11 is stopped and then the drain valve 26 is opened to drain the water in the water storage chamber 8. When the predetermined time has elapsed, the water supply valve 23 is opened to clean the inside of the water storage chamber 8, the drain valve 26 is closed, and a water replacement operation for storing a predetermined amount of water in the water storage chamber 8 is performed. The sterilization operation in which the water is heated to around 65 ° C. and sterilized for 10 minutes is performed for 10 minutes, and the cooling operation for cooling the water storage chamber 8 is performed after 10 minutes. By opening the drain valve 26 performing cleaning mode to drain After falls below ° C. (step S104).

  When the cleaning mode in step S104 is completed, the control unit 45 shifts to the drying mode (step S105) and controls the blower fan control means 47 to drive the blower fan 14 at a predetermined rotation speed (for example, 800 rpm). When the drying operation is continued to drive the blower fan 14 for a predetermined time (for example, 3 hours) and it is determined that three hours have elapsed, the blower fan 14 is stopped and the operation is terminated.

Next, control in the normal operation mode in step S103 for determining whether or not the cleaning mode in step S104 and the drying mode in step S105 are performed will be described based on the flowchart of FIG.
First, when the normal operation mode of step S103 is started, the control unit 45 sets the mist motor 11 and the blower fan 14 to a predetermined value based on the humidification level and the airflow level set by the humidification switch 31 and the airflow switch 32. And the mist operation for switching the ON / OFF state of the heater 19 is started, and it is determined whether the indoor ambient temperature detected by the intake air temperature sensor 28 is 10 ° C. or more which is a predetermined value (step S201). ) If the detected temperature is 10 ° C. or higher, the accumulated time counting means 50 starts counting the accumulated time (step S202).

  When the counting of the accumulated time by the accumulated time counting means 50 is started in step S202, the control unit 45 determines whether the indoor ambient temperature detected by the intake air temperature sensor 28 is less than 10 ° C. (step S203), and the detected temperature is If it is less than 10 ° C., the counting of the accumulated time in the accumulated time counting means 50 is stopped and the current accumulated time is stored (step S204). If the temperature detected by the intake air temperature sensor 28 is 10 ° C. or higher, the determination in step S203 is repeated.

  If the counting of the accumulated time is stopped in step S204 and the current accumulated time is stored, or if the detected temperature of the intake air temperature sensor 28 is less than 10 ° C. in step S201, the controller 45 causes the elapsed time counting means 49 to It is determined whether the count value of the elapsed time counted in step 20 is equal to or longer than a predetermined elapsed time (step S205). If it is determined that the count value of elapsed time is 20 hours or more, the control unit 45 performs integration. It is determined whether the accumulated time counted by the time counting means 49 is less than 1 hour (step S206). If it is determined that the accumulated time counted is less than 1 hour, the elapsed time counted by the elapsed time counting means 49 is stored in the past. Accumulated time stored as total elapsed time added to the counted elapsed time and counted by the accumulated time counting means 50 After resetting (step S207), if it is determined that the counted accumulated time is 1 hour or more, the temperature around the instrument body 1 is equivalent to a room temperature room, and bacteria are generated around the water storage chamber 8 and can be activated. After the normal operation mode is terminated due to high performance, the cleaning mode in step S104 and the drying mode in step S105 are sequentially executed to prevent bacterial growth.

  After storing the total elapsed time in step S207 and resetting the accumulated time, the control unit 45 determines whether the stored total elapsed time is less than or equal to a predetermined upper limit time of 720 hours (corresponding to 30 days of continuous operation) (step S207). S208), if the total elapsed time is 720 hours or less, the mist operation is continued and the process returns to step S201 to determine whether the temperature detected by the intake air temperature sensor 28 is 10 ° C. or higher, and the total elapsed time exceeds 720 hours. Then, after the normal operation mode is terminated because it is necessary to sterilize and dry the water storage chamber 8, the stored count value of the total elapsed time is reset, and then the cleaning mode in step S104 and the step S105 are performed. The drying mode is sequentially executed.

  In this way, if the ambient temperature in the vicinity of the appliance body 1 is in a low temperature environment of less than 10 ° C., the temperature of the humidified air blown into the room by each humidification level becomes 10 ° C. or less and is stored in the water storage chamber 8. Since the stored water temperature is maintained at around 15 ° C., it can be determined that the environment is unlikely to be activated and activated in the vicinity of the water storage chamber 8, and the normal mode is not performed without performing the cleaning mode and the drying mode. Therefore, the relative humidity in the refrigerator is prevented from decreasing, and the water temperature in the water storage chamber 8 is maintained at around 65 ° C. by the heater 19 in the sterilization operation, so that the water in the water storage chamber 8 is heated. It is possible to prevent an increase in power consumption by blowing out warm air from the air outlet 2 with water and increasing the cooling load in the refrigerator.

  Moreover, when the mist operation is not forcibly terminated by operating the operation switch 30 or the like when the appliance main body 1 installed in the refrigerator is ventilated in the refrigerator for a short period of time or due to a temporary power failure, Even if the temperature rises, if the accumulated time of the ambient temperature is 10 ° C. or more is less than 1 hour, the mist operation may be continued, so that bacteria generated at the timing when the ambient temperature has risen may remain. If the mist operation is continued for about one month, the mist operation is forcibly terminated and the sterilization operation and the drying operation are executed, so that the bacteria in the water storage chamber 8 are surely killed and clean. Can be maintained.

  If it is determined in step S205 that the elapsed time counted by the elapsed time counting means 49 is less than 20 hours, the mist operation is continued and the process proceeds to step S201, assuming that a predetermined predetermined elapsed time has not elapsed. Then, it is determined again whether the temperature detected by the intake air temperature sensor 28 is 10 ° C. or higher.

  As described above, in the normal operation mode, it is determined whether the temperature detected by the intake air temperature sensor 28 is 10 ° C. or higher. If the temperature detected by the intake air temperature sensor 28 is 10 ° C. or higher, the accumulated time when 10 ° C. or higher is detected. If the time elapsed since the start of operation is 20 hours or more and the accumulated time at which the temperature detected by the intake air temperature sensor 28 is 10 ° C. or more is less than 1 hour, the appliance body 1 is installed in the refrigerator. When the normal operation mode is continued without performing the cleaning mode and the drying mode, the heater 19 is driven by the sterilization operation, and hot air is blown out from the air blowing port 2 to cool the refrigerator. It can prevent beforehand that the freshness maintenance state of the floret and the fruit in a refrigerator deteriorates because efficiency deteriorates or there is time when humidified air is not blown by drying operation.

  In addition, since the presence or absence of the cleaning mode and the drying mode is determined based on the accumulated time when the temperature detected by the intake air temperature sensor 28 in the normal operation mode is 10 ° C. or higher, the refrigerator in which the appliance body 1 is installed Even if the indoor ambient temperature rises due to ventilation and storage of florets and fruits at room temperature, the cleaning mode and drying mode are automatically performed after the normal operation mode ends, The sterilization in the water storage chamber 8 can be performed without operating the microcomputer of the control unit 45, and the usability of the user is improved.

  Even if the ambient temperature rises temporarily, for example, by ventilating the refrigerator for a short period of time, and the mist operation continues and bacteria may be generated, the mist operation duration time is a predetermined upper limit time. When 720 hours elapses, the mist operation is forcibly stopped and the cleaning mode and the drying mode are performed, so that the bacteria generated in the water storage chamber 8 can be surely killed and a clean state can be maintained.

  In the present embodiment, the cleaning mode and the drying mode are not performed when the accumulated time when the temperature detected by the intake air temperature sensor 28 is 10 ° C. or more is less than 1 hour. The upper limit of the temperature detected by the intake air temperature sensor 28 and the upper limit of the integration time can be set within a range where the bacteria do not propagate within 8, and each value can be set depending on the object to be stored.

  As another embodiment, as shown in FIG. 8, the appliance main body 1 is installed in a part of the refrigerator, and the appliance main body 1 starts to be driven when the refrigerator is turned on. The indoor air sucked from a certain air inlet 17 is changed to humidified air containing mist in the water storage chamber 8 in the instrument body 1, and the humidified air is blown into the room from the air outlet 2, thereby maintaining the freshness of flowers and fruits. It may be a system.

  Further, other configurations used in the present embodiment are presented as examples, and are not intended to limit the scope of the invention, and can be implemented in various other forms. Various omissions, replacements, and changes can be made without departing from the scope of the present invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Air outlet 8 Water storage chamber 10 Rotating body 11 Mist motor 13 Porous part (impact)
14 Blower Fan 19 Heater 28 Intake Air Temperature Sensor 45 Control Unit

Claims (4)

A device body, a water storage chamber in the device body for storing water, a heater for heating water in the water storage chamber, mist generating means for generating mist from the water in the water storage chamber, and the mist generating means A blower fan that performs mist operation for blowing humidified air containing generated mist from the blower opening, an intake air temperature sensor that detects an ambient temperature around the instrument body, and
If it is determined that the mist operation has been continued for a predetermined time or longer, the sterilization operation in which the heater is heated to sterilize the water storage chamber and the water in the water storage chamber is drained, and the air blowing is performed. A controller that drives a fan to perform drying operation for drying the water storage chamber,
After the instruction to start the mist operation is issued, the control unit does not perform the sterilization operation and the drying operation if the ambient temperature detected by the intake air temperature sensor is less than a predetermined value, and the mist operation A humidifier characterized by continuing.   The control unit counts the time when the atmospheric temperature detected by the intake air temperature sensor is equal to or higher than a predetermined value after a predetermined elapsed time has elapsed since the start instruction of the mist operation was issued, The humidifying device according to claim 1, wherein if the counted time is less than a predetermined time, the sterilization operation and the drying operation are not performed and the mist operation is continued.   The controller performs the sterilization operation and the drying operation when a time during which the mist operation is continued without performing the sterilization operation and the drying operation exceeds a predetermined upper limit time. The humidifier according to claim 1 or 2.   The mist generating means includes a cylindrical rotating body that submerses the lower end in the water storage chamber and pumps up and disperses water by rotation, a mist motor that rotationally drives the rotating body, and water scattered by the rotation of the rotating body. The humidifying device according to any one of claims 1 to 3, wherein the humidifying device is configured with a colliding body that collides with the other.

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