JP2009092360A - Humidity control method for humidifier device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a humidity control method for a humidifier deice capable of carrying out detection of humidification of a more proper humidification amount in accordance with a changing state of actual humidity drop wherein humidification operation is carried out and a humidity situation of a room temporally changes. <P>SOLUTION: A rate of change of humidity changing per unit time in a humidifying state is judged, and if the rate of change of humidity is in a rising direction and it is more than a rate of change in the rising direction of humidity specified beforehand, setting is carried out to carry out humidification such that the humidification amount is reduced, and if the rate of change of humidity is small with respect to the rate of change in the rising direction of humidity specified beforehand, the humidification is carried out such that the humidification amount is increased, and the humidification amount is reduced when the rate of change of humidity is large in the humidity control method for the humidifier device. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a humidity control method for a humidifier that performs humidification by evaporating water, for example.

  In recent years, due to the high airtightness of houses and offices and the widespread use of air conditioners, the indoor environment in winter has become dry, and allergic diseases due to respiratory diseases and the spread of indoor dust are also increasing. There is a growing interest in improving air drying. In order to improve the air quality of such a drying tendency, it is effective to use a humidifier that humidifies dry air.

  It is important that such humidifiers have excellent humidification performance, but this humidification performance is based on the physical humidification capacity defined by the mechanism for quickly changing the room to a comfortable humidity state by forced humidification. In addition, by absorbing the difference in humidification environment conditions that change depending on the size and airtightness of the installed room, the indoor humidity is changed to the desired comfortable humidity state, and dry outside air is opened and closed by opening and closing doors and windows. Even if a humidity fluctuation factor that causes the room air to flow into the room and temporarily reduce the humidity, it can be restored and maintained in a comfortable humidity state in a short period of time. The high quality of the control surface that humidifies noise can be combined to enhance the entire humidifier.

  In particular, since the humidification capacity greatly affects the high humidification performance, physical improvements in the mechanism for improving the humidification capacity are carried out by many humidifier suppliers every day and have been improved year by year. ing.

  However, with regard to the humidity control method, until now, most of the control methods are based on a simple sequence such as performing humidification operation of the humidifier until a comfortable humidity state intended for indoor humidity is achieved. Appropriate humidification is performed according to the conditions of the humidification environment, and it is possible to restore and maintain a comfortable humidity state in a short time against fluctuation factors of the indoor humidity, and to reduce noise with low power consumption as much as possible. Few efforts have been made to improve control methods that improve the quality of the humidification performance of humidification. Therefore, improvement of the control method which improves the quality of such humidification performance is desired.

  Conventionally, as a humidity control method for this type of humidifier, a method of maintaining the operating state of the humidifier with a constant humidification amount until reaching a target comfortable humidity state is generally used, or Divide the range on the low-humidity side up to the target comfortable humidity state with variable humidification amount into multiple areas, and each humidification amount is set so that more humidification is performed on the lower humidity side in each range A method is known that is set in advance according to the area (see, for example, Patent Document 1).

  Hereinafter, the humidity control method of the humidifier will be described with reference to FIGS.

  In this conventional example, the indoor unit 101 of the air conditioner for heating the indoor air, the humidifier 106 for humidifying the indoor air, and the user operate the air conditioner, set the indoor temperature, and set the same humidity. The remote controller 105 that switches and operates to transmit the setting contents to the indoor unit 101 by infrared light, and the indoor unit 101 transmits the start / stop command of the humidification operation and the data of the humidification amount control value during the air-conditioning operation. The humidifier 106 is operated by setting the state of the humidification operation and the state of the humidification amount generated by transmitting the air, and evaporating the water stored in the internal tank by the heat generated by the heater to humidify the room Consisting of

  The indoor unit 101 includes a microcomputer and a peripheral circuit thereof, and includes an indoor control unit 130 that controls the entire operation state of the air conditioner and the humidifier 106. The indoor control unit 130 converts infrared light from the remote controller 105 into the indoor control unit 130. A light receiver 114 for receiving a command signal transmitted in this manner, a transmitter 116 for transmitting a control command of the operating state to the humidifier 106 by infrared light, and a humidity sensor 129 for detecting the absolute humidity in the room. And an indoor temperature sensor 128 for detecting the indoor temperature, and the humidifier 106 is provided with a receiver 107 for receiving an operation state control command transmitted from the transmitter 116 provided in the indoor controller 130. The operation is turned on / off according to the start command and the stop command received by the receiver 107, and according to the humidification amount control value. And it has a function of adjusting the wet weight.

  Next, a humidification amount control method for determining the humidification amount of the humidifier 106 will be described with reference to FIG.

  The indoor humidity detected by the humidity sensor 129 is corrected with the room temperature detected by the indoor temperature sensor 128 to obtain the relative humidity, and is determined as the current detected humidity Ha, and the user operates the remote controller 105. Thus, the relative humidity set in advance is set as the set humidity Hs. The humidity range to the low humidity side including the set humidity Hs is divided into a plurality of (in the embodiment, four divisions from the high humidity side A to the low humidity side D), and each divided humidity range is as shown in FIG. The humidity value is recognized as a humidity zone, and the humidification value Q is previously determined as a function of the zone number as a humidification amount control value so that the humidification amount becomes the maximum from the high humidity side zone to the low humidity side zone. It is determined which humidity zone the current detected humidity Ha is in the plurality of divided humidity zones, and the humidification value Q of the determined humidity zone is transmitted from the transmitter 116 to the humidifier 106 as a control command. Then, the humidifier 106 receives the transmitted humidification value Q at the receiver 107, and the humidification amount of the humidifier 106 according to the received humidification value Q is determined according to Table 4 according to Table 4. It is configured to adjust by changing.

  The humidification amount of the humidifier 106 is controlled in accordance with the determination result of each humidity zone, and when the same zone determination result continues for a predetermined time, the humidification amount control value at that time is corrected.

With the above configuration, when the air conditioner is in an operating state, the indoor absolute humidity value detected by the humidity sensor 129 provided in the indoor control unit 130 built in the indoor unit 101 is the indoor temperature value detected by the indoor temperature sensor 128. The relative humidity is obtained by correction, and this is set as the detected humidity Ha, and the detected humidity Ha corresponds to which humidity zone with respect to the humidity zone determined from the preset set humidity Hs by the user operating the remote controller 105. The humidifier 106 is configured to perform the humidification operation so as to generate a humidification amount corresponding to the humidification value Q determined in the corresponding humidity zone.
JP-A-6-74534

  In such a humidity control method of the conventional humidifier, a plurality of humidity zones are set in advance from the set humidity Hs set by the user, and the detected humidity Ha corresponds to which humidity zone with respect to this humidity zone. The humidifier 106 generates a humidification amount corresponding to a predetermined humidification value Q so that the humidification amount is maximized in each corresponding humidity zone from the high humidity side to the low humidity side zone. Because it is a humidity control method for operation, regardless of the actual increase in indoor humidity, the value of the detected humidity Ha at that time is on the low humidity side and the range defined in the corresponding humidity zone on the low humidity side During this period, the humidification operation is performed with the humidification value Q being close to the maximum value of 3 or 2, so that the heater is also operated on the high heat generation side, resulting in low indoor humidity. Side state Humidifier 106 if has always a problem to be operated by power close to the maximum.

  Further, in a state humidified to a comfortable humidity state close to the set humidity Hs, dry outdoor air enters the room when the door or window of the room in use is opened, and the detected humidity with respect to the set humidity Hs. In a state where a temporary decrease in indoor humidity occurs such that Ha becomes slightly lower, the humidifier 106 has a humidification value Q determined by a zone on the high humidity side of 0, regardless of the actual decrease in indoor humidity. The humidification operation is performed with the humidification amount on the lower side of 1. As a result, it takes a certain amount of time to return to the original comfortable humidity state, so that the room is close to a comfortable humidity. However, there is a problem that it takes time to return to a comfortable indoor humidity when the indoor humidity is a low value but rapidly decreases in a short time.

  The present invention solves such a conventional problem, and appropriate humidification is performed in accordance with the state of change in humidity increase due to actual humidification in which humidification operation is performed and the humidity state in the room changes with time. Provides a humidity control method for a humidifier that improves the quality of the humidification performance, enabling humidification operation with low power consumption as much as possible even when the amount of humidity in the room is low. The purpose is to do.

  In addition, in a room that has been humidified in a comfortable state, humidification is performed with an appropriate amount of humidification according to the actual humidity change state where the humidity condition in the room changes over time. Humidification that further improves the quality of humidification performance, even when a temporary drop in indoor humidity occurs, such as when a door or window of a room is opened, can be quickly humidified to the original comfortable indoor humidity state It aims at providing the humidity control method of an apparatus.

  In order to achieve the above object, the humidity control method of the humidifier according to the present invention determines the rate of change in humidity that changes per unit time in a humidified room, and the determined rate of change in humidity is increasing. In this case, the humidification is set so that the amount of humidification is reduced if the rate of change is higher than a predetermined humidity increase direction.

  This means that if the equipment is in a humidified state, if the rate of change of humidity in the upward direction that changes per unit time is greater than or equal to the rate of change in the upward direction of humidity specified in advance, the amount of humidification is reduced. Therefore, the humidification is performed so that the humidification amount is large when the humidity change rate is small and the humidification amount is small when the humidity change rate is large, with respect to the predetermined rate of increase in humidity. A device humidity control method is obtained.

  In addition, humidification water evaporation means that can change the amount of humidification generated by changing the amount of air blown and the amount of heating by the heat source inside the device casing, and the humidity around the device are detected and converted to a humidity signal. Output the humidity detection means, and change the humidification amount of the humidified air generated by the humidified water evaporation means so that the humidity signal output from the humidity detection means is input as a target humidity defined in advance as a comfortable humidity. In the humidifying device including the humidification control means capable of performing the determination, the humidity change rate that changes per unit time is determined from the humidity signal of the ambient humidity that the humidity detection means detects and outputs the humidification control means. If the humidity change rate is in the increasing direction and is equal to or higher than the predetermined humidity increasing rate, the humidification amount of the humidified air generated by the humidified water evaporation means is reduced. It is obtained by a set of operating.

  By this means, when the device is in a humidifying operation state, the humidification amount of the humidified air generated by the humidifying water evaporation means changes per unit time determined from the humidity signal of the ambient humidity detected and output by the humidity detecting means. If the humidity change rate in the rising direction is equal to or higher than the change rate in the predetermined humidity increase direction, the humidification control means adjusts so that the humidification amount of the generated humid air increases. A humidifier that performs humidification so that the amount of humidification is large when the rate of change in ambient humidity detected by the humidification control means is small relative to the rate of change in the upward direction, and the amount of humidification is small when the rate of change in humidity is large. A humidity control method is obtained.

  In addition, the humidity control means divides the humidity range from the target humidity specified in advance into the low humidity side into two or more humidity ranges and recognizes each humidity range as a humidity control category. Accordingly, the rate of change in the increasing direction of humidity specified in advance is set, and the value of the rate of change in the increasing direction of humidity specified in advance is smaller in the humidity control category on the high humidity side.

  By this means, in the humidity control section divided into two or more sections, the humidity control section on the higher humidity side has a smaller value of the rate of change in the increasing direction of the humidity specified in advance, so the detected ambient humidity is higher. A humidity control method for a humidifier that performs humidification such that the humidification amount decreases as the humidity is increased can be obtained.

  Further, if the humidity control unit predefines the rate of change in humidity in the descending direction and the rate of change in humidity that changes per unit time is equal to or greater than the rate of change in the descending direction of humidity specified above, humidification is performed. The humidified water evaporation means is operated so that the humidification amount of the humidified air generated by the water evaporation means becomes maximum.

  By this means, a humidity control method for a humidifier that performs humidification so that the humidification amount of the humidified air is maximized is obtained if the detected ambient humidity is equal to or higher than the rate of change in the humidity decrease direction defined in advance in the decrease direction. .

  Further, the correspondence between the humidification amount of the humidified air generated by the humidified water evaporation means and the humidity change rate that changes per unit time in the humidification control means is variable, and the user operates this variable amount from the outside of the device. Variable amount input means is provided on the outer surface of the casing of the device so that it can be adjusted.

  By this means, the user of the humidifier operates the variable amount input means to adjust and change the correspondence of the humidified amount of the humidified air generated by the humidified water evaporation means with respect to the rate of change of humidity that changes per unit time. The humidity control method of the humidifier which can be obtained is obtained.

  Further, a second target humidity is provided on the high humidity side with respect to the target humidity defined in advance in the humidification control means, the second target humidity is recognized as the control target humidity, and the control target humidity is determined. Is changed to the target humidity to operate the humidified water evaporation means.

  By this means, there can be obtained a humidity control method for the humidifying apparatus in which humidification is performed so that the indoor humidity becomes the target humidity of the second control set higher than the target humidity.

  In addition, the first alarm means for giving a warning to the user is also provided on the outer surface of the casing of the device, and the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized is integrated. The accumulated period is recognized as a continuous maximum humidification time, and a first continuous maximum humidification determination time is defined in advance in order to compare and determine the continuous maximum humidification time. When the time is equal to or longer than the first continuous maximum humidification determination time, the humidification control unit is added with a function of determining whether the humidification capability of the humidifier is incompatible and operating the alarm unit to give a warning to the user.

  By this means, if the continuous period in which the amount of humidification is maximum in the humidified state is equal to or longer than the first continuous maximum humidification determination time defined in advance, it is determined that the humidifying capability of the humidifying device is not suitable, and the first warning means The humidity control method of the humidifying device that gives a warning to can be obtained.

  In addition to the second alarm means for giving a warning to the user on the outer surface of the casing of the device, integrating the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized, The integrated period is recognized as a continuous maximum humidification time, and a second continuous maximum humidification determination time is defined in advance in order to compare and determine the continuous maximum humidification time. If it is longer than the continuous maximum humidification determination time and the humidity change rate determined at this time is in the downward direction, the drought of water for humidification is determined and the second alarm means is operated to operate the user. A function of giving a warning to the humidification control means is added.

  By this means, if the continuous period in which the humidification amount is maximum in the humidified state is equal to or longer than the second continuous maximum humidification determination time defined in advance and the humidity change rate determined at that time is in the downward direction, the humidification is performed. Thus, the humidity control method for the humidifier can be obtained in which the drought of water is judged and a warning is given to the user by the second alarm means.

  Further, when the second warning means is operated to give a warning to the user, a function for stopping the generation of humidified air by the humidified water evaporation means is added to the humidification control means.

  By this means, when the second warning means gives a warning to the user in the humidified state, generation of humidified air by heating of the heat source by the humidified water evaporation means will be stopped thereafter, and the humidifying device that performs the air blowing operation thereafter The humidity control method can be obtained.

  Further, when the second warning means is operated to give a warning to the user, a function for stopping generation of humid air by heating the heat source in the humidified water evaporation means is added to the humidification control means.

  By this means, the humidity control method of the humidifying device is obtained in which the generation of the humidified air by the humidified water evaporation means is stopped thereafter when the second alarm means gives a warning to the user in the humidified state.

  According to the present invention, if the device is humidified, the amount of humidification is reduced if the rate of change of humidity in the upward direction that changes per unit time is equal to or greater than the rate of change in the upward direction of humidity defined in advance. Therefore, when the humidity change rate is small, the humidification amount is large, and when the humidity change rate is large, the humidification amount is small. Therefore, it is possible to perform a humidifying operation that is as low as possible and consumes less power even when the indoor humidity value is low, and open doors and windows in rooms that are humidified in a comfortable state. As a result, even if a temporary decrease in indoor humidity occurs, the rate of change in humidity at this time is small, so humidification is performed with a large amount of humidification, and the humidification is quickly performed to the initial comfortable indoor humidity state. It can be provided a humidity control method for more quality of high effective humidifier.

  Further, when the device is in a humidifying operation state, the humidification amount of the humidified air generated by the humidifying water evaporation means is increased per unit time determined from the humidity signal of the ambient humidity detected and output by the humidity detecting means. If the humidity change rate in the direction is equal to or greater than the change rate of the humidity increase direction specified in advance, the humidification control means adjusts so that the humidification amount of the generated humidified air is increased. Since the humidification amount is large when the change rate of the surrounding humidity detected by the humidification control means is small with respect to the change rate of the humidity, and the humidification amount is reduced when the change rate of the humidity is large, Even in low humidity conditions, it is possible to perform humidifying operation that is as low as possible and consumes less power, and open the doors and windows of rooms that are humidified in a comfortable state. Therefore, even if a temporary decrease in indoor humidity occurs, the rate of change in humidity at this time becomes small, so that the humidified air generated by the humidified water evaporation means becomes a large humidification amount by the humidification control means. Therefore, it is possible to provide a humidity control method for a humidifying apparatus that is capable of quickly humidifying to an initially comfortable room humidity state and that is more effective and of high quality.

  In addition, in the humidity control section divided into two or more sections, the humidity control section on the high humidity side has a smaller value of the rate of change in the humidity rising direction specified in advance, so the detected ambient humidity is on the high humidity side. Since the humidification is performed so that the amount of humidification becomes smaller as the value becomes, when the ambient humidity approaches the target humidity due to actual humidification, the humidification operation is performed with lower power consumption and the quality of the humidifier is effective. A humidity control method can be provided.

  In addition, if the detected ambient humidity is equal to or higher than the rate of change in the decreasing direction of the humidity in the descending direction, humidification is performed so that the humidification amount of the humidified air is maximized. Even if there is a temporary drop in room humidity by opening the doors and windows in the room, it is possible to quickly humidify the room to the original comfortable room humidity. A device humidity control method can be provided.

  Further, the user of the humidifier can operate the variable amount input means to adjust and change the correspondence of the humidified amount of the humidified air generated by the humidified water evaporation means to the rate of change of humidity that changes per unit time. Therefore, it is possible to provide a humidity control method for a humidifying device that can effectively perform humidification desired by the user.

  In addition, since humidification is performed so that the indoor humidity becomes the target humidity of the second control set higher than the target humidity, the indoor humidity is adjusted and maintained at a comfortable humidity that reliably exceeds the target humidity. It is possible to provide a humidity control method for a humidifying device that is effective for performing humidification.

  In addition, if the continuous period in which the humidification amount is maximum in the humidified state is equal to or longer than the first continuous maximum humidification determination time defined in advance, it is determined that the humidifying capacity of the humidifying device is not suitable, and the first alarm means notifies the user. In order to give a warning, it is possible to provide a humidity control method for a humidifying device that can determine and notify the user of a state of insufficient humidification capacity in which the room humidity does not increase even when the humidifying operation is performed.

  Further, if the continuous period in which the humidification amount is maximum in the humidified state is equal to or longer than the predetermined second continuous maximum humidification determination time and the rate of change in humidity determined at that time is in the descending direction, the water for humidification is used. In order to judge the drought of water and give a warning to the user by the second alarm means, the humidity in the room is lowered while the humidification state in which the humidification amount of the humidified air is maximized continues for a long time. It is possible to provide a humidity control method for a humidifying device that can effectively notify the user by judging the drought condition when water for humidification is consumed.

  In addition, when the second warning means gives a warning to the user in the humidified state, generation of humidified air by heating the heat source by the humidified water evaporation means is stopped thereafter, and the humidified amount of the humidified air is maximized. When it is judged that the humidifying water is consumed and the humidifying water is reduced and the drought is in a damp state while the humidifying state continues for a long time, humidified air is generated by heating the heat source in the humidifying water evaporation means. After stopping, it is possible to provide a humidity control method for a humidifying device that has an effect of reducing power consumption by performing a blowing operation.

  Further, when the second warning means gives a warning to the user in the humidified state, the generation of the humidified air by the humidified water evaporation means is stopped thereafter, and the humidified state in which the humidified amount of the humidified air is maximized. Humidifying device that has an effect of stopping the generation of humidified air by the humidifying water evaporation means when it is judged that the humidifying water is consumed in such a state that the humidity in the room is reduced and the humidity in the room is reduced. The humidity control method can be provided.

  The invention according to claim 1 of the present invention determines the rate of change of humidity that changes per unit time in a humidified room, and the determined rate of change of humidity is in an increasing direction and is specified in advance. The humidity is set so that the amount of humidification decreases if the rate of change is higher than the rate of increase in humidity.If the device is humidified, the humidity in the upward direction that changes per unit time If the rate of change is equal to or greater than the rate of change in the humidity increase direction specified in advance, the humidification amount is reduced so that the humidity change rate is smaller than the rate of change in the humidity increase direction specified in advance. In some cases, the amount of humidification is large, and when the rate of change in humidity is large, humidification can be performed so that the amount of humidification decreases.

  In addition, humidification water evaporation means that can change the amount of humidification generated by changing the amount of air blown and the amount of heating by the heat source inside the device casing, and the humidity around the device are detected and converted to a humidity signal. Output the humidity detection means, and change the humidification amount of the humidified air generated by the humidified water evaporation means so that the humidity signal output from the humidity detection means is input as a target humidity defined in advance as a comfortable humidity. In the humidifying device including the humidification control means capable of performing the determination, the humidity change rate that changes per unit time is determined from the humidity signal of the ambient humidity that the humidity detection means detects and outputs the humidification control means. If the humidity change rate is in the increasing direction and is equal to or higher than the predetermined humidity increasing rate, the humidification amount of the humidified air generated by the humidified water evaporation means is reduced. When the device is in a humidifying operation state, the humidification amount of the humidified air generated by the humidifying water evaporation means is a unit determined from the humidity signal of the ambient humidity detected and output by the humidity detecting means In order to adjust the humidification amount of the humidified air to be increased if the rate of change of the humidity in the upward direction that changes per time is equal to or greater than the rate of change in the upward direction of the humidity specified in advance, When the change rate of the surrounding humidity detected by the humidification control means is small with respect to the specified change rate in the increasing direction of humidity, the humidification amount is large, and when the humidity change rate is large, the humidification amount is reduced. Has the effect to be performed.

  In addition, the humidity control means divides the humidity range from the target humidity specified in advance into the low humidity side into two or more humidity ranges and recognizes each humidity range as a humidity control category. Accordingly, the rate of change in the rising direction of the humidity specified in advance is set, and the value of the rate of change in the rising direction of the humidity specified in the humidity control section on the high humidity side is reduced and divided into two or more sections. In the humidity control category, the humidity control category on the higher humidity side has a smaller value of the rate of change in the humidity increase direction specified in advance, so the humidified amount decreases as the detected ambient humidity is on the higher humidity side. Thus, it has the effect | action that humidification is performed.

  Further, if the humidity control unit predefines the rate of change in humidity in the descending direction and the rate of change in humidity that changes per unit time is equal to or greater than the rate of change in the descending direction of humidity specified above, humidification is performed. The humidified water evaporation means is operated so that the humidification amount of the humidified air generated by the water evaporation means is maximized, and the detected ambient humidity changes in the downward direction of the predetermined humidity in the downward direction. If it is more than the rate, the humidification is performed so that the humidification amount of the humidified air becomes maximum.

  Further, the correspondence between the humidification amount of the humidified air generated by the humidified water evaporation means and the humidity change rate that changes per unit time in the humidification control means is variable, and the user operates this variable amount from the outside of the device. The variable amount input means is provided on the outer surface of the casing of the device so that it can be adjusted, and the humidity change that changes per unit time by the user of the humidifier operating the variable amount input means It has the effect | action which can adjust and change the correspondence of the humidification quantity of the humidification air produced | generated in the humidification water evaporation means with respect to a rate.

  Further, a second target humidity is provided on the high humidity side with respect to the target humidity defined in advance in the humidification control means, the second target humidity is recognized as the control target humidity, and the control target humidity is determined. The humidifying water evaporation means is operated by changing the humidity to the target humidity, and humidification is performed so that the indoor humidity becomes the target humidity of the second control set on the higher humidity side than the target humidity. Has an effect.

  In addition, the first alarm means for giving a warning to the user is also provided on the outer surface of the casing of the device, and the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized is integrated. The accumulated period is recognized as a continuous maximum humidification time, and a first continuous maximum humidification determination time is defined in advance in order to compare and determine the continuous maximum humidification time. When it is longer than the first continuous maximum humidification determination time, a function for judging the incompatibility of the humidifying capacity of the humidifier and operating the alarm means to give a warning to the user is added to the humidification control means. If the continuous period in which the humidification amount is maximum is equal to or longer than the first continuous maximum humidification determination time specified in advance, it is judged that the humidifying capacity of the humidifying device is incompatible, and a warning is given to the user by the first alarm means. Can It has the effect of say.

  In addition, a second alarm means for giving a warning to the user is also provided on the outer surface of the casing of the device, and the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized is integrated. The accumulated period is recognized as a continuous maximum humidification time, and a second continuous maximum humidification determination time is defined in advance to compare and determine the continuous maximum humidification time, and the continuous maximum humidification time is If it is longer than the second continuous maximum humidification determination time and the humidity change rate determined at this time is in the downward direction, the drought of water for humidification is determined and the second alarm means is operated. A function for giving a warning to the user is added to the humidification control means, and the continuous period in which the humidification amount is maximum in the humidified state is equal to or longer than the predetermined second continuous maximum humidification determination time and is determined at that time. The rate of change in the humidity Has the effect of giving a warning to the user in the second alarm means to determine the drought of water for humidification if the.

  Further, when the second warning means is operated to give a warning to the user, a function for stopping the generation of humidified air by the humidified water evaporation means is added to the humidification control means. When the warning means gives a warning to the user, generation of humidified air by heating of the heat source by the humidified water evaporation means will be stopped thereafter, and air blowing operation is performed thereafter.

  In addition, when the second alarm means is operated to give a warning to the user, a function for stopping generation of humid air by heating the heat source in the humidified water evaporation means is added to the humidification control means. When the second alarm means gives a warning to the user in the humidified state, it has the effect of stopping the generation of the humidified air by the humidified water evaporation means thereafter.

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

(Embodiment 1)
FIG. 1A is a partial cross-sectional view showing a configuration for explaining a humidity control method of a humidifying apparatus according to Embodiment 1 of the present invention. FIG. 2A is a perspective view showing the configuration for explaining the humidity control method of the humidifier, and FIG. 2 is a block diagram showing the configuration of the humidifier for explaining the humidity control method of the humidifier.

  In the present embodiment, the main body configuration of the humidifier is humidified by evaporating the water contained in the filter by applying blown air to the filter containing water or blown air heated by a heater, and heating vaporization type This will be described based on the humidifier.

  As shown in the figure, humidified water evaporation means 2 for generating humidified air by evaporating water inside a box-like hollow casing 1 constituting the main body of the humidifier (the dotted line on FIG. 1) The humidity detection means 3 for detecting the humidity in the room surrounding the humidifier and converting it into a humidity signal and outputting the humidity signal output from the humidity detection means 3 Is provided with a humidification control means 4 for changing the humidification amount of the humidified air generated by the humidified water evaporation means 2 so that the ambient humidity becomes a predetermined target humidity.

  Further, a box-shaped humidified water holding tray 5 having an open upper portion for holding water to be evaporated is provided in the inside of the casing 1 at the lowest part of the casing 1. And a humidified water tank 6 for storing and supplying water for evaporation.

  The humidified water evaporation means 2 is a blowing means 7 such as a fan for blowing air taken in from the outside of the device, a heating means 8 such as a heater for heating the air blown by the blowing means 7, and the heating means 8 for heating. The humidifying filter 9 generates humidified air by applying the blown air to evaporate water.

  Air blown by the blowing means 7 is taken into the inside of the casing 1 from the intake opening 10 opened on the surface of the casing 1, and the humidified air generated by the humidifying filter 9 passes through the blowing air passage 11. It is configured to blow out to the outside of the housing 1 from the blowout port 12 opened on the surface of the housing 1.

  In FIG. 1, hatched lines surrounded by arrows indicate the flow of humidified air flowing inside the housing 1.

  Here, the humidifying filter 9 is arranged so that a part of the lower part is immersed in the water held in the humidifying water holding tray 5, and sucks up the water held in the humidifying water holding tray 5 by capillary action and sucks it up on its surface. It is configured to efficiently generate humidified air by evaporating the water by applying blown air to the water. A non-woven fabric sheet is formed, and the nonwoven fabric sheet is folded into a strip shape to increase the surface area, thereby increasing the contact area with the blown air and increasing the evaporation efficiency of water.

  Here, the humidified water tank 6 is formed in a hollow shape by opening one end with a lightweight resin material having high water resistance such as polyethylene or polyethylene terephthalate. The open portion provided at one end is arranged so as to be immersed in the water surface of the water held in the humidified water holding tray 5, and this water surface is lowered with the progress of generation of humidified air, If a gap is generated between the water surfaces, the water enters the humidified water tank 6 and the water is removed from the humidified water tank 6 to the humidified water holding tray 5 until the gap between the opened portion and the water surface is eliminated. Is configured to be supplied.

  Here, the blowing means 7 is constituted by a general blowing device that generates blowing air by rotating the blades. Here, a two-speed AC motor is used as power for rotating the blades, and an AC power supply is applied. By switching the, the air can be blown with two types of airflow: stop, weak, and strong.

  Here, the heating means 8 is composed of an electric heater that generates heat when AC power is applied.

  Here, the humidity detection means 3 is a general relative humidity that uses a humidity sensor whose impedance value changes according to the value of relative humidity, and an impedance voltage conversion circuit that converts the change in impedance value of the humidity sensor into a change in voltage value. The measurement circuit is configured to convert the relative humidity of the air around the humidifier into a corresponding voltage value and output it as a humidity signal.

  In the following description, the description of humidity indicates relative humidity (% RH), and the symbols are also described in a unified manner.

  The humidification control means 4 is an AC motor that constitutes a microcomputer 13 that controls the operation of the entire humidification apparatus with the humidity signal output from the humidity detection means 3 as an input, and a blower means 7 that is controlled by the output of the microcomputer 13. On the other hand, by switching the application of the power of the AC power supply, the blast power switching means 14 that changes the state of the weak blast and the electric heater that constitutes the heating means 8 generate heat by switching the application of the power of the AC power supply. Heater power switching means 15 for changing the on / off state of the power supply, and a DC stabilized power supply for driving the humidity detecting means 3 and the microcomputer 13 by converting the power of the AC power supply into a stabilized DC voltage with a low voltage The means 16 is constituted.

  Electric power from the commercial AC power supply 17 outside the housing 1 is supplied to each element of the blowing power switching means 14, the heater power switching means 15, and the DC stabilized power supply means 16 that require power supply from the AC power source. Is the one that is getting the supply.

  Here, the microcomputer 13 is a so-called single chip having a central processing unit (CPU), an input / output device, an analog / digital conversion input device (A / D), a read only memory (ROM), and a read / write memory (RAM). A microcomputer is used, and the humidity signal output from the humidity detecting means 3 such as a polymer humidity sensor is read by the analog / digital conversion input terminal 18 of the microcomputer 13 to determine the humidity of the air around the humidifier. Recognizing and determining the driving state of the blowing power switching means 14 and the heater power switching means 15 from the recognized change in humidity value, the respective voltage output terminals 19a1 of the microcomputer 13 indicate the state of application of each AC power. , 19a2 and 19b can be switched by the voltage signal output. It is in one that incorporates program the software to control the humidification operation.

  Here, the blower power switching means 14 switches the power supply state from the commercial AC power supply 17 to the two-speed AC motor serving as a load by the voltage signal output from the voltage output terminals 19a1 and 19a2 of the microcomputer 13. The heater power switching means 15 can switch the power supply state from the commercial AC power supply 17 to the electric heater serving as a load by a voltage signal output from the voltage output terminal 19b of the microcomputer 13. In order to achieve this, a common AC voltage switching element such as a relay or a bidirectional thyristor is used. In particular, the blast power switching means 14 includes two sets of alternating voltage switching elements so that when the voltage signal is output from the voltage output terminal 19a1, the second speed AC motor rotates at a low speed, and the voltage signal from the voltage output terminal 19a2. Is configured so that the state of power application from the commercial AC power supply 17 can be switched with respect to the 2-speed AC motor so that the 2-speed AC motor rotates at a high speed, and the blowing means 7 is stopped, It is possible to set three states of weak air and strong air.

  Here, the DC stabilized power supply means 16 omits a detailed description in order to convert the power of the AC power supply supplied from the commercial AC power supply 17 into a stabilized DC voltage with a low voltage. The voltage is converted into a low-voltage AC voltage, and the low-voltage AC voltage is converted to a direct current using a diode and a capacitor and smoothed to form a direct current power supply. The direct current power supply is passed through a constant voltage regulator element and stabilized to a constant voltage. It is composed of a general transformer step-down type stabilized constant voltage power supply.

  Next, the operation of the humidifier configured as described above will be described.

  When the humidity detection means 3 provided inside the housing 1 detects the humidity in the room surrounding the humidifier and outputs a humidity signal, the humidification control means 4 inputs the humidity signal to the humidified water evaporation means 2. The humidification amount of the humidified air generated in this way is adjusted so that the ambient humidity becomes a target humidity that is defined in advance.

  The humidifying filter 9 constituting the humidifying water evaporation means 2 is arranged so that a part of the lower part is immersed in the water held in the humidifying water holding tray 5 provided at the lowest part of the housing 1. The water held in the tray 5 is sucked up by capillary action, and the humidified water evaporation means 2 blows outside air from the intake opening 10 opened on the surface of the casing 1 to the inside of the casing 1 by the blowing means 7. The air blown by the blowing means 7 is heated by the heating means 8, and the blown air heated by the heating means 8 is applied to the humidifying filter 9 that sucks up the water held in the humidifying water holding tray 5. Humidified air is generated, and the generated humidified air is blown out of the casing 1 through the blower air passage 11 and is blown out from the outlet 12 opened on the surface of the casing 1 so that the room is humidified. .

  When the water is evaporated and lost from the humidified water holding tray 5 due to the humidification, the water stored in the humidified water tank 6 is supplied to the humidified water holding tray 5.

  The microcomputer 13 constituting the humidification control means 4 reads the humidity signal output from the humidity detection means 3 at its analog / digital conversion input terminal 18, recognizes the humidity of the air around the humidifier, and recognizes this recognized humidity. On the basis of the software program incorporated from the change in the value of, the driving state of the blowing power switching means 14 and the heater power switching means 15 that also constitute the humidification control means 4 is determined to determine the state of each AC power application. The humidification operation is controlled by switching with the voltage signal output from each voltage output terminal 19a1, 19a2, 19b of the microcomputer 13.

  The microcomputer 13 uses the voltage signals output from the voltage output terminals 19a1 and 19a2 to switch the state of power supply from the commercial AC power supply 17 to the two-speed AC motor that constitutes the blowing means 7 via the blowing power switching means 14. The air blower 7 can be stopped and the two types of airflow, weak and strong, can be switched, and the microcomputer 13 can be connected to the load via the heater power switching means 15 with the voltage signal output from the voltage output terminal 19b. The presence or absence of heating of blowing air can be changed by switching the state of power supply from the commercial AC power supply 17 to the electric heater constituting the heating means 8.

  Here, the specification characteristics assumed, such as the relationship between the humidification amount and the power consumption in the humidifying operation state of the humidifier configured as described above, are shown in Table 1, and thereafter, the operating states of the blowing unit 7 and the heating unit 8 in the humidifying operation are shown. Details of the description related to the combination are omitted, and the description of the implementation state of the humidification operation is expressed by the humidification amount large, medium, small, and stop (no humidification).

  Table 1 shows an example of the specifications of the humidifying device. As shown in Table 1, the air flow rate of the air blowing means 7 and the presence / absence of heating by the heating means 8 are combined to humidify in three stages separately from the stop state of the humidifying operation. The amount can be adjusted, and the greater the amount of humidification, the greater the power consumption and noise caused by the air flow.

  Next, the software of the microcomputer 13 for controlling the humidifying operation will be described with reference to FIGS.

  FIG. 3 is a flowchart showing a routine part for switching the state of the humidifying operation based on the change of the humidity signal which is the main part of the present embodiment in the main routine of the humidifying operation software, and FIG. 4 is a diagram showing the humidifying operation software. It is the chart which showed the outline of the raise of the humidity with respect to the elapsed time in the inside room.

  In the flow of the main routine shown in FIG. 3, first, in step Sa1, the humidity signal output from the humidity detecting means 3 is converted into a digital signal at the analog / digital conversion input terminal 18 and read. The state is recognized as the current humidity Hn.

  Next, in step Sa2, a comparison is made as to whether or not the current humidity Hn recognized in step Sa1 exceeds the target humidity Ht, which will be described separately, which has been set in advance in the memory, so that the current humidity Hn exceeds the target humidity Ht. If so, the process proceeds to the next step Sa3, and if the current humidity Hn does not exceed the target humidity Ht, the process proceeds to step Sa4.

  In step Sa3, the humidification operation is stopped, and thereafter, the flow returns to the main routine again to repeat the movement from step Sa1.

  In step Sa4, the humidity change rate ΔHn which changes per unit time is determined from the state of change of the current humidity Hn recognized in step Sa1 according to the determination method of the humidity change rate ΔHn which will be described separately.

  Next, in step Sa5, the humidity change rate ΔHn determined in step Sa4 is compared with the value of the comparative humidity change rate ΔHc, which will be defined in advance and set in the memory, to determine the humidity change rate ΔHn. If the relative humidity change rate ΔHc is greater than or equal to, the process proceeds to the next step Sa6, and if the relative humidity change rate ΔHn does not satisfy the relative humidity change rate ΔHc, the process proceeds to the next step Sa7.

  In step Sa6, the operation is switched to a humidification operation with a humidification amount that is one step lower than the humidification amount in the current humidification operation, and thereafter the flow returns to the main routine again to repeat the operation from step Sa1.

  In step Sa7, the operation is switched to a humidification operation with a humidification amount that is one step higher than the humidification amount in the current humidification operation. Thereafter, the flow returns to the main routine again and the operation from step Sa1 is repeated.

  Thereafter, the operation of each step along the flow of each main routine is repeated to switch the humidifying operation state.

  Next, the contents of the regulation of the target humidity Ht will be described.

  For a comfortable living space, it is important that the combination of the room temperature and the room humidity is optimal, and it is generally judged numerically as a discomfort index. A case where the discomfort index is 70 is usually the most comfortable, but 60% is the most comfortable humidity when the room temperature in the winter where the humidifier is mainly used is 23 ° C. Therefore, the predetermined target humidity Ht is set to 60%.

  Next, a method for determining the humidity change rate ΔHn will be described with reference to FIG.

  FIG. 4 is a chart showing the transition of the indoor humidity in a state in which the humidifier is performing the humidifying operation with the transition of the current humidity Hn recognized in step Sa1 as the vertical axis and the horizontal axis as the elapsed time T.

  In the figure, the current humidity Hn gradually increases and changes in accordance with the progress of the elapsed time T due to the humidification performed by the humidifier, and is indicated by a solid line. The value of the change in the current humidity Hn is defined in advance. It is obtained as the difference value of the unit time It interval to be recognized as the humidity difference HΔ, and the humidity difference HΔ value corresponding to the point in time when the latest current humidity Hn (HΔ2 in the figure) is recognized is corrected in the direction in which the humidity increases. The present humidity change rate ΔHn is determined.

  Here, the current humidity Hn is recognized at a sufficiently short time interval with respect to the unit time It, and is output by the humidity detection means 3 based on the electrical noise component and the indoor air flow by performing a moving average. It goes without saying that the fluctuation generated in the humidity signal can be averaged, so that it can be recognized with higher accuracy. In actual use, the humidity signal output by the humidity detecting means 3 is read at intervals of 1 to 5 seconds, and always The recognition accuracy of the current humidity Hn is improved by calculating the moving average of the reading values from the past 5 to 10.

  The unit time It is a time interval that can grasp a sufficient humidity increase in an actual humidity increase in a room where humidification is being performed, and the humidification state can be switched with higher responsiveness in response to changes in humidity. Is set in as short a time as possible.

  Here, Table 2 shows an example of an increase in humidity in an actual indoor humidified state.

  Table 2 shows an example of the humidity increase in the indoor humidified state. Table 2 shows humidification with a relatively large amount of 500 mL / h and a medium 280 mL / h heating vaporization type humidifier in a 6-tatami room. It is an example of the result of confirming the increase in indoor humidity when the air conditioning is carried out, but even if humidification is performed at a moderate humidification amount of 280 mL / h in a room where the air density of C = 7 is relatively low, It can be seen that the humidity increases by about 0.5%.

  Here, considering the time interval of 4 minutes, the humidity rises by about 2%, and it can be considered that the presence or absence and the magnitude of the humidity rise can be sufficiently judged.

  Further, if the time interval is 4 minutes, as in the example of Table 2, humidification is performed at a relatively high humidity of 500 mL / h in a room with a relatively high air density of C = 3, and the appropriate humidity is 60. Since the time to reach% is 8 minutes, it is possible to determine at least one humidity rise before reaching the appropriate humidity. Therefore, here, the unit time It is defined as 4 minutes. is there.

  It should be noted that the humidity change rate ΔHn at the unit time It interval is also determined by performing a moving average at a short time interval after the unit time It has elapsed since the start of the humidifying operation. Since the humidification operation can be switched after confirmation, in actual use, the humidity change rate ΔHn is calculated in accordance with the confirmation of the recognition of the current humidity Hn, and the calculated humidity change rate ΔHn is always included. If the moving average of the past 5 to 10 determined values is calculated and used as the true humidity change rate ΔHn at that time, the responsiveness can be further improved with respect to the optimum humidifying operation.

  Next, the contents of the regulation of the relative humidity change rate Δ strike Hc will be described.

  In the state in which the humidifier is in the humidifying operation, the state in which the humidifier is operating at a low humidification amount is lower in power consumption, and the amount of blowing air for humidification can be reduced, so that the noise becomes low. As described above, if humidification by the humidifier is sufficient to increase the room humidity up to the target humidity Ht, it is more energy efficient to perform a humidification operation with a lower humidification amount. In addition, it can be said that there is a merit for the user from the advantage that humidification can be performed with low noise, and a higher-quality humidification function can be provided.

  Therefore, the relative humidity change rate ΔHc is determined by quantifying the humidity increase value per unit time as a comparison for determining whether the humidifying operation of the humidifier sufficiently affects the indoor humidity increase. The interval of the unit time is the same as the unit time It (4 seconds) of the determination interval of the humidity change rate ΔHn, and the range of the humidity value rising during the unit time It is defined.

  The range of the humidity increase value is determined by specifying a minimum time required for increasing the room humidity from the dry state to the target humidity Ht. In most cases, it is usually used for most of the day, such as relaxation of dryness, continuous use while sleeping, and improvement of dryness in offices that always use air conditioners. Yes, the original humidifier that humidifies the room and keeps it in a comfortable humid state even if it takes a certain amount of time to increase the humidity from the dry state to the target humidity Ht at the start of the humidification operation. Since it is considered that there is substantially no problem with respect to the function, the minimum humidity increase time is defined as 40 minutes.

  Therefore, the comparative humidity change rate ΔHc is specifically based on the idea of optimizing the humidified state in which the indoor dry state is 30% and the humidity is raised to 60% of the target humidity Ht after 40 minutes. In which a humidity rise value of 3% is specified.

  Next, implementation of the humidification operation by the microcomputer 13 described in the software flow for operating the humidifier configured as described above will be described.

  In the state where the humidifier is in the humidifying operation, the microcomputer 13 constituting the main part of the humidification control means 4 operates in accordance with the flow of the main routine described in the software. First, in step Sa1, the humidity state around the humidifier Is compared as the current humidity Hn, and in step Sa2, whether the current humidity Hn recognized in step Sa1 exceeds the target humidity Ht set in advance in the memory is compared.

  If the current humidity Hn is equal to or higher than the target humidity Ht as a result of the comparison in step Sa2, the process proceeds to the next step Sa3, and if the current humidity Hn does not exceed the target humidity Ht, the process proceeds to step Sa4. .

  In step Sa3, the humidification operation is stopped, and thereafter, the flow returns to the main routine again to repeat the movement from step Sa1.

  In step Sa4, the humidity change rate ΔHn that changes per unit time is determined from the change state of the current humidity Hn. In the next step Sa5, the value of the humidity change rate ΔHn is compared with the value of the comparative humidity change rate ΔHc. If the humidity change rate ΔHn is equal to or greater than the value of the comparative humidity change rate ΔHc, the process proceeds to the next step Sa6. If the humidity change rate ΔHn is less than the comparative humidity change rate ΔHc, the process proceeds to the next step Sa7.

  In step Sa6, the operation is switched to a humidification operation with a humidification amount that is one step lower than the humidification amount in the current humidification operation. Thereafter, the flow returns to the main routine again and the movement from step Sa1 is repeated. In step Sa7, Switch to humidification operation with a humidification amount that is one step higher than the humidification amount of the current humidification operation, and then return to the main routine again and repeat the movement from step Sa1 to perform the humidification operation based on changes in the humidity signal Will be switched.

  Here, when the humidifier is in an operating state, for example, at a certain point in time, the humidifier is operated in a large state, and if the humidity change rate ΔHn at that point is equal to or greater than the value of the comparative humidity change rate ΔHc, the humidification amount Is switched to the medium driving state, and at a certain point in time, the humidification amount is small. If the humidity change rate ΔHn at that point does not satisfy the comparative humidity change rate ΔHc, the humidification amount is medium. As a result, the humidification amount generated is automatically controlled so that the value of the humidity change rate ΔHn becomes a value according to the humidity increase value defined by the comparative humidity change rate ΔHc. It becomes.

  Therefore, when the capacity of the humidifier installed in the room to be humidified is more than sufficient and the air density of the room is relatively high, the humidifier is more humidified. If the humidity increase value during humidification is greater than the value of the relative humidity change rate ΔHc according to the difference in humidification environment conditions such as the size of the room where the humidifier is installed and the air density, the humidification is performed. It will be operated in a low volume, lower power consumption and low noise state, and the indoor humidity may be temporarily reduced by opening the doors and windows of the room in a humidified room. Even if it occurs, the humidity change rate at this time is in a downward direction and becomes smaller than the value of the comparative humidity change rate ΔHc, so that the humidification amount is humidified in a larger state. Indoor humidity conditions It can also be humidified.

(Embodiment 2)
Embodiment 2 of the present invention will be described below with reference to the drawings.

  In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  FIG. 5 is a chart showing the transition of the room humidity in a state where the humidifier is performing the humidifying operation with the transition of the current humidity Hn as the vertical axis and the horizontal axis as the elapsed time T.

  FIG. 5 shows a transition of the current humidity Hn in the room in the humidified state toward the target humidity Ht by a solid line. Normally, control is performed so that the room humidity converges to the target humidity Ht by performing humidification with a humidifier. Therefore, as shown in the figure, the humidification amount must be controlled so that the humidity change rate per hour becomes smaller as the indoor humidity approaches the target humidity Ht, and the humidification amount must be reduced. If the target humidity Ht is greatly exceeded and it is difficult to converge the room humidity with respect to the target humidity Ht, the room humidity is converged to the target humidity Ht even in the actual use of the humidifier. Is the longest time in the entire period when the humidifier is used, so it is possible for the user to perform low-humidity operation with reduced humidification as much as possible to reduce power consumption and noise. Very merit increases.

  Therefore, in the present embodiment, the humidity region on the low humidity side of the target humidity Ht is divided into three as the humidity region HE with respect to the software configuration executed by the microcomputer 13 of the first embodiment, and corresponds to each humidity region HE. The comparative humidity change rate ΔHc is individually determined, and the value is reduced as the comparative humidity change rate ΔHc in the humidity region on the high humidity side is reduced, so that the humidification amount is reduced as the indoor humidity is closer to the target humidity Ht. It is what.

  Table 3 collectively shows an example of the range of each humidity region HE and the value of the relative humidity change rate ΔHc for the humidity region.

  Next, the software of the microcomputer 13 that controls the humidifying operation will be described with reference to FIG.

  FIG. 6 is a flowchart showing an extracted routine portion for switching the state of the humidifying operation based on the change of the humidity signal which is the main part of the present embodiment in the main routine of the humidifying operation software.

  As shown in the flowchart of FIG. 6, the present embodiment adds a determination to compare the humidity region HE in which the current humidity Hn is present after step Sa4 with respect to the first embodiment, and corresponds to the determined humidity region HE. The humidification amount is switched by comparing the value of the comparative humidity change rate ΔHc to the time point and the humidity increase rate ΔHc.

  First, after determining the humidity change rate ΔHn in step Sa4, it is determined in step Sb1 whether the current humidity Hn is within the humidity region HE3. If the current humidity Hn is within the humidity region HE3, the process proceeds to step Sb2. After the value of the comparative humidity change rate ΔHc is stored as the value of the comparative humidity change rate ΔHc3, the process proceeds to step Sa5, and if the current humidity Hn does not satisfy the humidity region HE3, the process proceeds to step Sb3.

  In step Sb3, it is determined whether or not the current humidity Hn is within the humidity region HE2. If the current humidity Hn is within the humidity region HE2, the process proceeds to step Sb4 and the value of the comparative humidity change rate ΔHc is set to the comparative humidity change rate ΔHc2. After the value is stored, the process proceeds to step Sa5, and if the current humidity Hn does not satisfy the humidity region HE3, the process proceeds to step Sb5.

  In step Sb5, since the current humidity Hn is within the humidity region HE1, the value of the comparative humidity change rate ΔHc is stored as the value of the comparative humidity change rate ΔHc1, and the process proceeds to step Sa5.

  After step Sa5, the state of the humidifying operation is switched according to the description of the first embodiment.

  The humidification amount is switched so that the humidity change rate ΔHn becomes smaller as the humidity in the room humidified by the humidifier becomes closer to the target humidity Ht at a certain point in time by the software processing shown in the flowchart above. Therefore, the room humidity can be easily converged with respect to the target humidity Ht, and the humidification with low power consumption and low noise can be performed.

  In the present embodiment, the humidity region HE is divided into three and the relative humidity change rate ΔHc is determined for each humidity region HE. By determining the rate ΔHc, or by determining and calculating the value of the comparative humidity change rate ΔHc as a function of the current humidity Hn without determining the division of the humidity region HE, the current humidity Hn is further detailed. It goes without saying that the comparative humidity change rate ΔHc can be set according to the value.

(Embodiment 3)
The third embodiment of the present invention will be described below with reference to the drawings.

  In addition, the same thing as Embodiment 1 or Embodiment 2 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  In the first embodiment and the second embodiment, when the humidification state is humidified to the target humidity Ht and the indoor humidity remains stable, the humidifier is operated in a state where the humidification is stopped or the humidification amount is minimized. However, when the indoor humidity is stable in the vicinity of the target humidity Ht, the indoor humidity suddenly increases because a large amount of air that has entered the room and opened the indoor windows and doors in a short time. When it decreases, the determination result of the humidity change rate ΔHn at the unit time It interval or the comparison result with the comparative humidity change rate ΔHc is performed based on the determination result of the humidity change rate ΔHn by the moving average, and the humidifying operation is stopped. Alternatively, since the humidification operation is sequentially switched from the small humidification state to the humidification amount strong in the humidification amount, in order to return the value of the indoor humidity toward the humidity state before the humidity decrease or the target humidity Ht again. In , It takes a reasonable time.

  Therefore, in the embodiment, relative humidity for determining the humidity change in the downward direction compared with the humidity change rate ΔHn with respect to the software specification executed by the microcomputer 13 of the first embodiment or the second embodiment. If the change rate ΔHd in advance is defined in advance and set in the memory so that the change value in the descending direction of the humidity change rate ΔHn is larger than the comparative humidity decrease rate ΔHd even once, the humidifier The humidification operation is switched so as to perform humidification with the maximum humidification amount possessed by the so that it can return to the initial humidity state as quickly as possible.

  Here, the value of the comparative humidity decrease rate ΔHd is set so that a sufficiently large humidity decrease can be discerned. However, in a humidified room, the indoor wind flow or the outside of the outdoor Due to the influence of wind pressure fluctuations, the value of the current humidity Hn usually has a fluctuation of about 2% to 3% during the unit time It. The value is such that the humidity decreases by -4% during the unit time It.

  Next, software of the microcomputer 13 that controls the humidifying operation will be described with reference to FIG.

  FIG. 7 is a flowchart showing a routine part for switching the state of the humidifying operation based on the change of the humidity signal which is the main part of the present embodiment in the main routine of the humidifying operation software.

  In this embodiment, as shown in the flowchart of FIG. 7, after determining the humidity change rate ΔHn in step Sa4 with respect to the specification of the first embodiment, the value of the humidity change rate ΔHn determined in step Sa4 is the relative humidity. If the humidity change rate ΔHn is lower than the value of the comparative humidity decrease rate ΔHd, the humidification is performed with the maximum amount of humidification. A routine for switching the humidifying operation to be performed is added, and detailed description of the second embodiment is also omitted. However, the same function described below can be realized by adding a similar routine after step Sa4. .

  First, after determining the humidity change rate ΔHn in step Sa4, the humidity change rate ΔHn is compared with the comparative humidity decrease rate ΔHd previously set in the memory in step Sc1, and the value of the humidity change rate ΔHn is determined. If it is equal to or less than the value of the comparative humidity decrease rate ΔHd, the process proceeds to the next step Sc2, and if the humidity change rate ΔHn is not equal to or greater than the value of the comparative humidity decrease rate ΔHd, the process proceeds to step Sa5. The humidifying operation state can be switched according to the contents explained.

  In step Sc2, the humidification amount is immediately switched to a large state, and thereafter the state of the humidification operation is switched according to the description of the first embodiment.

  When the humidity change rate ΔHn of the indoor humidity in the humidified state by the humidifier is reduced to a value equal to or higher than the comparative humidity decrease change rate ΔHd at a certain point by the processing of the software shown in the above flowchart, It will be immediately switched to the large state, and it will be possible to return to the original humidity state as quickly as possible.

(Embodiment 4)
Embodiment 4 of the present invention will be described below with reference to the drawings.

  In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  FIG. 8 is a configuration diagram of the humidifying device for explaining the humidity control method of the humidifying device, FIG. 9 is a block diagram showing the configuration of the humidifying device for explaining the humidity controlling method of the humidifying device, and FIG. 10 is a variable amount input means. It is the block diagram which showed an example of 20.

  As shown in the figure, in the present embodiment, humidified air that is generated with respect to the humidity change rate ΔHn in response to an operation by the user on the outer surface of the casing 1 that forms the main body of the humidifying device as compared with the first embodiment. The difference is that variable amount input means 20 for changing the correspondence relationship between the humidification amounts is provided.

  Here, the variable amount input means 20 is composed of, for example, a voltage-dividing variable resistor 21 as shown in FIG. 10, and the variable amount input means 20 receives a supply of power from the DC stabilized power supply means 16 and is operated by the user. The adjustment value is output as a variable signal that is a change in voltage value.

  The variable amount signal output from the variable resistor 21 is read by the microcomputer 13 constituting the humidification control means 4 via the analog / digital conversion input terminal 18a, so that the variable amount adjusted by the user described below is adjusted. Recognized as an adjustment count ka.

  Next, the variable amount adjustment count ka recognized by the microcomputer 13 in the software will be described with reference to FIG.

  FIG. 11 is a chart showing the relationship between the variable signal of the variable resistor 21 on the horizontal axis and the variable adjustment coefficient ka recognized by the microcomputer 13 on the vertical axis.

  Here, the variable signal of the variable resistor 21 is a voltage value that changes equally from left to right around the center of the horizontal axis. The range of the horizontal axis corresponds to the range of variable values that can be adjusted by the user. This corresponds to the voltage range of the stabilized DC power supply means 16 divided by the variable resistor 21.

  Similarly, the variable amount adjustment count ka of the vertical axis with respect to the variable value range of the variable resistor 21 centered on the center of the horizontal axis is similarly 0.5 to 1.5, for example, with the center of the vertical axis being 1 as the center value. The value range is set, and this correspondence is converted by software.

  Therefore, the variable value of the variable resistor 21 is converted and recognized as a variable adjustment coefficient ka of 0.5 to 1.5 inside the microcomputer 13.

  In the software routine for switching the humidifying operation state based on the change of the humidity signal, the variable amount adjustment count ka is multiplied by the humidity change rate ΔHn at the time of recognition, and the multiplication result is set as the humidity change rate ΔHn1. Recognizing and replacing the humidity change rate ΔHn1 with the humidity change rate ΔHn, the user can adjust the switching state of the humidification amount generated by performing the subsequent processing.

  The variable amount adjustment count ka adjusted by the user by operating the variable resistor 21 and the humidity change rate ΔHn when the humidity change rate ΔHn is determined by correcting the above-described configuration and software processing are multiplied and replaced with the humidity change rate ΔHn1. The variable amount adjustment count ka will be used in the subsequent process of switching the humidification amount, and according to the range of the variable amount adjustment count ka of the embodiment, the variable amount adjustment count ka is a standard value of 1. When the value of ka is 0.5, the subsequent humidity change rate ΔHn is doubled, and when the value of the variable adjustment coefficient ka is 1.5, the subsequent humidity change rate ΔHn is 1/2 times. Will be adjusted as follows.

  Therefore, as a result, the humidification amount is automatically adjusted so that the change in the indoor humidification value during the humidification operation is along the humidity change rate ΔHn1 corrected by the value of the variable amount adjustment count ka adjusted by the user. The user can check the humidification situation and adjust to the desired humidification operation state.

  In this embodiment, the variable amount adjustment count ka is variable from 0.5 to 1.5. However, the humidification amount adjustment range desired by the user can be changed by setting a numerical value in another range. It goes without saying that you can do it.

(Embodiment 5)
Embodiment 5 of the present invention will be described below with reference to the drawings.

  Since the present embodiment replaces the value of the target humidity Ht in the flow described in the software for performing the humidifying operation by the microcomputer 13 in the first or second embodiment, Except for the description of replacing the value of the target humidity Ht, it is the same as in the first embodiment or the second embodiment, and the detailed description is omitted.

  FIG. 12 is a chart showing the transition of the current humidity Hn in the room in the humidified state by the humidifier with the vertical axis representing the transition of the current humidity Hn and the horizontal axis representing the elapsed time T toward the target humidity Ht.

  In the first to fourth embodiments so far, the humidity value is switched by adjusting the humidification amount using the target humidity Ht as the target value in the humidified state. However, the indoor humidity is set to the target humidity Ht. When it reaches, the humidification operation is stopped, and after the humidification operation is stopped, the humidification is repeated again with the humidification amount according to the decrease in the humidity. Therefore, the indoor humidity is usually as shown by a dotted line in FIG. It is maintained while repeating hunting with the target humidity Ht as the upper limit, and the indoor humidity during humidification is maintained below the target humidity Ht on average.

  Therefore, in the present embodiment, in the software executed by the microcomputer 13 by setting the target humidity Ht1 as the second target humidity to the high humidity of the target humidity Ht in advance and setting it in the memory. The humidification operation is switched with the target humidity Ht1 as a target.

  Here, the value of the target humidity Ht1 is determined by checking the hunting value in a state where the indoor humidity in the actual humidified state is substantially stable with respect to the target humidity Ht. Since it is difficult to determine the hunting value uniformly due to many conditions such as the size, air density, and the humidifying ability of the humidifier, it is set here based on the concept of discomfort index.

  As described above, the target humidity Ht is set to 60% by assuming that the discomfort index that humans feel most comfortable is 70, and assuming that the indoor temperature in winter at this time is 23 ° C. When the maximum humidity at which the discomfort index is 70 at 23 ° C. is examined, the comfort determination rank does not change greatly even at a humidity of 65%. Therefore, the target humidity Ht1 is set as the humidity of 65%.

  As described above, the room humidity is humidified so as to converge to the target humidity Ht1 set on the high humidity side of the target humidity Ht shown by the solid line in FIG. 12 by correcting the processing of the software that changes the target humidity Ht to the target humidity Ht1. Since the operation is performed, even if a hunting state occurs in the room humidity, humidification can be performed in a state exceeding the target humidity Ht.

(Embodiment 6)
Embodiment 6 of the present invention will be described below with reference to the drawings.

  In addition, the same thing as Embodiment 1 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  FIG. 13 is a configuration diagram of the humidifying device for explaining the humidity control method of the humidifying device, and FIG. 14 is a block diagram showing the configuration of the humidifying device for explaining the humidity controlling method of the humidifying device.

  As shown in the figure, a continuous period in which the amount of humidification is maximized during the humidification operation is provided with the first alarm means 22 for giving a warning to the user on the outer surface of the casing 1 constituting the main body of the humidifier. Is recognized as the continuous maximum humidification time Tm, and the continuous maximum humidification time Tm is compared with a first continuous maximum humidification determination time TH1 defined in advance. When it is equal to or greater than the value of the humidifying determination time TH1, a function for judging the incompatibility of the humidifying capacity of the humidifying room with respect to the humidified indoor environment and operating the first alarm means 22 to give a warning to the user is added. You can also.

  Here, the first alarm means 22 can notify the user of the state of caution, and is constituted by, for example, an LED that emits light to attract the user's attention when energized.

  The LED constituting the first alarm means 22 is connected to the voltage output terminal 19c of the microcomputer 13 constituting the humidification control means 4, so that the lighting state can be changed by processing of the software of the microcomputer 13. The power supply is supplied from the stabilized DC power supply means 16 and is lit.

  The comparison between the integration of the continuous maximum humidification time Tm and the first continuous maximum humidification determination time TH1 is performed by the software processing in the microcomputer 13, and the humidification operation described in the first or second embodiment is performed. In the software routine, the continuous continuous humidification time Tm is counted by counting the continuous period in which the humidification operation is maximum, and the value of this accumulated continuous maximum humidification time Tm is preset in the memory. The LED which comprises the 1st warning means 22 by comparing with the value of 1st continuous maximum humidification judgment time TH1, and judging that the humidification capability nonconformity is determined if it is equal to or greater than the value of the first continuous maximum humidification judgment time TH1. By adding a step of lighting up, the processing is performed during the humidification operation.

  The continuous maximum humidification time Tm is always reset when the humidifier is not operated at the maximum humidification amount, so that the continuous time is measured only when the humidifier is operated at the maximum humidification amount. Is.

  Here, the first continuous maximum humidification determination time TH1 is set based on a time sufficiently long to determine that the humidification capacity of the humidifier is not sufficient with respect to the humid indoor environment. To do.

  Normally, when the humidifying capacity of the humidifying device satisfies the humidifying environment conditions such as the size and air density of the room to be humidified more than enough, the humidification is started and the room is in a dry state. When the time has passed, the room humidity can be converged to the target humidity Ht and the humidity can be stabilized while performing a humidification operation with a small amount of humidification of the humidifier. The necessary amount of humidification is installed when the area of the air is very large, the air density is low and the dry air of the outside air always flows in a large amount or the air conditioner is used and the air is always dehumidified. When the humidification capacity of the humidifier is significantly exceeded, the humidifier is constantly in a state where the humidification amount of the humidifier is maximum.

  Therefore, from the above consideration, when the humidifying capacity of the humidifying device satisfies the conditions of the humidifying environment more than enough, the indoor humidity can be converged to the target humidity Ht in about one hour from the start of humidification. In addition, when the humidification amount that is originally required greatly exceeds the humidification capacity of the humidifier, the humidifier is operated at a maximum with the maximum amount of humidification. Because it is considered that the humidifying capacity of the humidifying device is not suitable for the conditions of the humidifying environment if the humidifying device has the maximum amount of humidification during the humidifying operation. In addition, here, the value of the first continuous maximum humidification determination time TH1 is set to 2 hours to determine whether or not the humidification capability is inadequate.

  With the above configuration and correction of software processing, the continuous maximum humidification time Tm is accumulated when the humidifier is in a humidifying operation state, and the accumulated continuous maximum humidification time Tm is preset in the memory. If the value is equal to or longer than the value of the first continuous maximum humidification determination time TH1, the LED constituting the first alarm means 22 arranged on the outer surface of the casing 1 constituting the main body of the humidifier will be lit. By turning on, it is possible to notify the user of the humidifying device of the state of incompatibility of the humidifying capability as a warning.

  In the present embodiment, the first alarm means 22 is configured by an LED, but there is no limitation on the configuration as long as it can notify the user of the warning state. Needless to say, there is no difference in the function and effect of light-emitting elements such as light bulbs and auditory warning means using buzzer sound.

(Embodiment 7)
Embodiment 7 of the present invention will be described below with reference to the drawings.

  In addition, the same thing as Embodiment 1 and Embodiment 6 attaches | subjects the same symbol, and abbreviate | omits detailed description.

  FIG. 15 is a configuration diagram of the humidifying device for explaining the humidity control method of the humidifying device, and FIG. 16 is a block diagram showing the configuration of the humidifying device for explaining the humidity controlling method of the humidifying device.

  As shown in the drawing, a second alarm means 23 is provided on the outer surface of the casing 1 constituting the main body of the humidifying device, and the second continuous means for preliminarily defining the value of the continuous maximum humidifying time Tm during the humidifying operation. When compared with the maximum humidification determination time TH2, the value of the continuous maximum humidification time Tm is equal to or greater than the value of the second continuous maximum humidification determination time TH2, and if the humidity change rate Δ recognized at this time is in the downward direction, the humidification Therefore, it is possible to add a function of operating the second warning means 23 and giving a warning to the user by judging that the water for the water is drought.

  Here, the second alarm means 23 is capable of notifying the user of the state of caution, and is constituted by, for example, an LED that emits light to attract the user's attention when energized.

  The LED constituting the second alarm means 23 is connected to the voltage output terminal 19d of the microcomputer 13 constituting the humidification control means 4 so that the lighting state can be changed by processing of the software of the microcomputer 13. The power supply is supplied from the stabilized DC power supply means 16 and is lit.

  Next, a method for determining a drought state will be described with reference to FIG.

  FIG. 17 is a chart showing a change state of indoor humidity during humidification by a humidifying device in which the horizontal axis indicates elapsed time and the vertical axis indicates change in humidity.

  Normally, when the humidifier is in operation, the indoor humidity value starts to increase from the start of humidification, and the humidifying environment conditions and the humidifying capacity of the humidifier are maintained as time passes. In the balanced state, the room humidity is almost in equilibrium (period indicated by TD1 in the figure).

  Here, when the humidifying capacity of the humidifying device is sufficiently high with respect to the conditions of the humidifying environment in the room where the humidifying device is installed, the humidifying amount is switched so that the indoor humidity state converges to the target humidity Ht. Will be adjusted.

  However, when the humidification state continues to be a drought due to consumption of water for humidification, moisture is no longer supplied from the humidifier to the indoor space, so the room humidity decreases toward the initial dry state. Therefore, the value of the humidity change rate Δ recognized at this time is in the descending direction.

  In addition, in the state where the water for humidification is consumed and lost, the humidifier continues to be operated continuously with the maximum humidification amount held to compensate for the decrease in humidity. The period during which the engine is operated with the humidification amount is integrated and measured as the continuous maximum humidification time Tm.

  In addition, the period in which the value of the humidity change rate Δ is in the downward direction when water for humidification is consumed and lost is greatly affected by the conditions of the humidifying environment, but usually the minimum period is about 30 minutes. Since there is a certain period (period indicated by TD2 in the figure), the value of the second continuous maximum humidification determination time TH2 is set to a time within 30 minutes, and here, 25 minutes is set.

  From the above consideration, if the humidifier is operated with the maximum humidification amount exceeding the second continuous maximum humidification determination time TH2 and the value of the humidity change rate Δ recognized at this time is in the descending direction, It can be determined that water has been lost.

  The comparison of the integration of the continuous maximum humidification time Tm and the second continuous maximum humidification determination time TH2 is carried out in the software processing in the microcomputer 13, and the humidification operation is the maximum in the main routine of the humidification operation software. The continuous maximum humidification time Tm is counted and the continuous maximum humidification time Tm is integrated, and the value of the integrated continuous maximum humidification time Tm is the value of the second continuous maximum humidification determination time TH2 previously set in the memory. If it is equal to or greater than the second continuous maximum humidification determination time TH2, it is determined whether the humidity change rate Δ at that time is in a downward direction, and the value of the humidity change rate Δ decreases. If it is in the direction, it is configured by software so as to turn on an LED constituting the second alarm means 23 by judging drought of water for humidification.

  With the above configuration and correction of software processing, the continuous maximum humidification time Tm is accumulated when the humidifier is in a humidifying operation state, and the accumulated continuous maximum humidification time Tm is preset in the memory. If the value of the second continuous maximum humidification determination time TH2 is equal to or greater than that and the value of the humidity change rate Δ at that time is in the descending direction, the second is disposed on the outer surface of the casing 1 constituting the main body of the humidifier. The LED that constitutes the alarm means 23 of No. 2 will be lit, and it is possible to inform the user of the humidifier as a warning that the LED is turned on and it is determined that the water for humidification is drought. It becomes.

  In the present embodiment, the second alarm means 23 is configured by an LED, but there is no limitation on the configuration as long as it can notify the user of the warning state. Needless to say, there is no difference in the function and effect of light-emitting elements such as light bulbs and auditory warning means using buzzer sounds.

  Further, when the second alarm means 23 is operated to give a warning to the user that it can be determined that the water for humidification is drought, the humidification operation is performed by heating the heating means 8 in the humidification operation. The processing by the software of the microcomputer 13 can be changed so as to stop.

  Due to the above-described correction of the software processing, the humidifying operation by heating of the heating means 8 is not performed in a state where it is determined that the water for humidification is drought, so that humidification with low power consumption and higher safety is achieved. You can drive.

  Further, when the second alarm means 23 is operated to issue a warning to the user that it can be determined that the water for humidification is drought, the software of the microcomputer 13 is stopped so as to stop the humidifying operation. You can also change the process.

  By correcting the software processing as described above, it is possible to prevent the operation of the humidifier in a drought state by stopping the humidification operation of the humidifier in a state where it is determined that the water for humidification is drought.

The block diagram of the humidification apparatus for demonstrating the humidity control method of the humidification apparatus of Example 1 of this invention ((a) The fragmentary sectional view which shows the structure for demonstrating the humidity control method of the humidification apparatus, (b) (A perspective view showing a configuration for explaining a humidity control method of the humidifier) The block diagram which showed the structure of the humidifier for demonstrating the humidity control method of the humidifier in the humidity control method of the humidifier The flowchart for demonstrating the routine part which switches the state of the humidification driving | operation in the humidity control method of the humidifier The figure which showed the outline of the raise of the humidity with respect to the elapsed time in the room | chamber interior during humidification for demonstrating the humidity control method of the humidification device The figure which showed transition of the indoor humidity for demonstrating the humidity control method of the humidification apparatus of this Embodiment 2. The flowchart for demonstrating the routine part which switches the state of the humidification driving | operation in the humidity control method of the humidifier The flowchart for demonstrating the routine part which switches the state of the humidification driving | operation in the humidity control method of the humidification apparatus of this Embodiment 3. The perspective view which shows the structure for demonstrating the humidity control method of the humidification apparatus of this Embodiment 4. FIG. The block diagram which showed the structure of the humidifier for demonstrating the humidity control method of the humidifier in the humidity control method of the humidifier The block diagram which showed an example of the variable amount input means 20 in the humidity control method of the humidifier The figure which showed the relationship by making the variable signal of the variable resistance 21 and the variable amount adjustment count ka into the vertical axis | shaft in the humidity control method of the humidifier. The figure which showed transition of the present humidity Hn in the indoor in the humidification state for demonstrating the humidity control method of the humidification apparatus of this Embodiment 5. The perspective view which shows the structure for demonstrating the humidity control method of the humidification apparatus of this Embodiment 6. FIG. The block diagram which showed the structure of the humidifier for demonstrating the humidity control method of the humidifier in the humidity control method of the humidifier The perspective view which shows the structure for demonstrating the humidity control method of the humidification apparatus of this Embodiment 6. FIG. The block diagram which showed the structure of the humidifier for demonstrating the humidity control method of the humidifier in the humidity control method of the humidifier The figure which showed transition of the present humidity Hn in the indoor in the humidification state for demonstrating the humidity control method of the humidification apparatus The figure which shows the humidity control method of the humidifier of the prior art The figure which shows the humidity control method of the humidifier The figure which shows the humidity control method of the humidifier

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Humidification water evaporation means 3 Humidity detection means 4 Humidification control means 22 1st alarm means 23 2nd alarm means

Claims (10)

Determine the rate of change of humidity that changes per unit time when the room is humidified, and if the determined rate of change of humidity is in the increasing direction and is greater than or equal to the rate of change in the increasing direction of humidity specified in advance. A humidity control method for a humidifier configured to perform humidification so that the amount of humidification is reduced. Humidified water evaporation means that can change the amount of humidification generated by changing the amount of air blown and the amount of heat generated by the heat source inside the device casing, and the humidity around the device is detected and converted into a humidity signal for output Humidity detection means that performs this operation, and the humidity signal generated by the humidification water evaporation means can be changed so as to obtain a target humidity that is defined as a comfortable humidity in advance by using a humidity signal output from the humidity detection means. In a humidifying device having a humidification control means, a humidity change rate that changes per unit time is determined from a humidity signal of ambient humidity that the humidity detection means detects and outputs the humidity control means, and the humidity of the determined humidity is determined. If the rate of change is in the increasing direction and is equal to or higher than the predetermined rate of increasing humidity, the humidified air generated by the humidified water evaporation means is reduced in the amount of humidification. Humidity control method for humidifying apparatus according to claim 1, characterized in that a setting for. In the humidification control means, the humidity range on the low humidity side from the target humidity specified in advance is divided into two or more humidity ranges, and each humidity range is recognized as a humidity control category, and according to each humidity control category. 3. The humidifying device according to claim 2, wherein a predetermined rate of change in the direction of increasing humidity is set, and the humidity control unit on the higher humidity side has a smaller rate of change in the direction of increasing humidity specified in advance. Humidity control method. If the humidity control unit predefines the rate of change in humidity in the descending direction and changes per unit time, the rate of change in the direction of descending humidity is equal to or greater than the rate of change in the descending direction of humidity specified in advance. 4. The humidity control method for a humidifier according to claim 2, wherein the humidified water evaporation means is operated so that the humidification amount of the humidified air generated by the means is maximized. By making the correspondence relationship of the humidification amount of the humidified air generated by the humidification water evaporation means to the humidity change rate that changes per unit time in the humidification control means variable, the user operates this variable amount from the outside of the device. 5. A humidity control method for a humidifying device according to claim 2, further comprising variable amount input means on the outer surface of the casing of the device so as to be adjusted. In the humidification control means, a second target humidity is provided on the high humidity side with respect to the target humidity defined in advance, the second target humidity is recognized as the control target humidity, and the control target humidity is set as the target humidity. 6. The humidity control method for a humidifier according to claim 2, wherein the humidified water evaporation means is operated in place of the humidity of the humidifier. In addition to the first alarm means for giving a warning to the user on the outer surface of the casing of the device, integrating the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized, The accumulated period is recognized as a continuous maximum humidification time, and a first continuous maximum humidification determination time is defined in advance to compare and determine the continuous maximum humidification time, and the continuous maximum humidification time is the first continuous humidification time. 7. A function of adding a function to the humidifying control means to determine whether or not the humidifying capacity of the humidifying device is incompatible and to give a warning to the user by operating the warning means when it is longer than the continuous maximum humidifying judgment time. Humidity control method for the humidifier. In addition to the second alarm means for giving a warning to the user on the outer surface of the casing of the device, integrating the continuous period in which the humidification amount of the humidified air generated by the humidified water evaporation means is maximized, The integrated period is recognized as a continuous maximum humidification time, and a second continuous maximum humidification determination time is defined in advance in order to compare and determine the continuous maximum humidification time. If it is longer than the continuous maximum humidification determination time and the humidity change rate determined at this time is in the downward direction, the drought of water for humidification is determined and the second alarm means is operated to operate the user. 7. The humidity control method for a humidifier according to claim 2, wherein a function for giving a warning is added to the humidification control means. The humidifying device according to claim 8, wherein a function for stopping generation of humidified air by heating of the heat source in the humidified water evaporation means is added to the humidifying control means when the second warning means is operated to give a warning to the user. Humidity control method. The humidifying device according to claim 8, wherein a function for stopping generation of humidified air by heating of the heat source in the humidified water evaporation means is added to the humidifying control means when the second warning means is operated to give a warning to the user. Humidity control method.

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