JP2011062393A - Drying machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To sterilize and deodorize an object such as clothes without being affected by humidity inside a drying machine. <P>SOLUTION: Moisture absorption/discharge means 6 for absorbing and discharging surrounding moisture and electrostatic atomization generation means 7 for supplying electrostatic atomization generated particles obtained by dew-condensing the moisture in the air and then converting dew condensation water into minute particles by an electrostatic atomization process into a storage chamber 1 are disposed inside a bypass circulation air path 8 branched from a circulation air path 5. Further, the moisture absorption/discharge means 6 is provided on the upstream of the electrostatic atomization generation means 7 and keeps atmosphere humidity near the electrostatic atomization generation means 7 within a predetermined humidity range. Thus, the object such as washing clothes is sterilized and deodorized without being affected by the humidity around the drying machine. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a dryer that performs a drying operation of an object to be dried in a storage room, and relates to a dryer that enables sterilization and deodorization of the object to be dried during the drying operation.

  In recent years, with an increasing interest in hygiene, a function of realizing sterilization and deodorization in a washing process and a drying process has been desired. Even in a dryer having a drum-shaped storage chamber for storing the objects to be dried, throw out items to be sterilized and deodorized, such as clothing, fabric products, toys and small items, and blow out several tens of minutes of hot air. A dedicated course for driving is set up.

  In the dryer, since the drying process proceeds while blowing high-temperature dry air, it is considered advantageous to suppress the growth of bacteria, but lint or the like that is taken into the high-temperature air when drying the material to be dried In the case of a cooling coil or heat pump type that dehydrates and dehumidifies air containing a large amount of moisture removed from the object to be dried from foreign matters such as dust, the sterilization means for the capture filter to protect the evaporator is positive. It wasn't done.

  As specific sterilization / deodorization means for dryers, sterilizing ozone gas is circulated inside the machine by circulating air, and resin parts and metal components used in the storage chamber for storing the objects to be dried, A method of sterilizing by adding an antibacterial component to a resin component or a fiber component used in a filter part has been proposed.

  However, when a foreign substance adheres to the wall surface of the storage chamber or the filter surface, bacteria and molds propagate on the surface of the foreign substance that is not in direct contact with the storage chamber or the filter, and the antibacterial effect becomes insufficient. Similarly, even if the sterilization effect is expressed only in the contacted portion, it is difficult to expect the sterilization effect and the deodorizing effect in the non-contacted portion. For this reason, electrostatic atomization particles generated by the electrostatic atomization method are moved in the air to areas where germs such as laundry are prone to grow and unpleasant odor sources. A new sterilization and deodorization method to be brought into contact has been proposed. Further, in this electrostatic atomization method, moisture in the surrounding air is condensed at the tip of the discharge electrode, and particles are produced together with radical species generated at the time of discharge to produce bacteria and deodorizing effects (for example, , See Patent Document 1).

JP 2008-237442 A

  However, in the method of using the electrostatic atomization generated particles generated by the electrostatic atomization method for sterilization and deodorization, the voltage value at the time of atomization varies or is generated depending on the humidity around the electrostatic atomizer. The amount of atomized particles greatly fluctuated, and it was difficult to maintain a stable amount of atomized particles. That is, in the dryer, the humidity around the electrostatic atomizer is low, so the amount of moisture that forms at the tip of the discharge electrode decreases, the absolute amount of atomized particles together with the radical species decreases, and the sterilization and deodorization effect decreases. There was a problem such as.

  The present invention solves the above-described conventional problems, and stably generates electrostatic atomization-generating particles even when the humidity around the electrostatic atomizer changes depending on the installation environment and operating conditions of the dryer. It is possible to maintain the sterilization and deodorization effects of the dried product and the dryer.

  In order to solve the above-described conventional problems, the dryer of the present invention includes a storage chamber that stores and rotates an object to be dried, a blower that blows air into the storage chamber, and the storage by operating the blower. A circulating ventilation path that sucks indoor air and blows the air again into the accommodation chamber, and the electrostatic atomization generated particles obtained by condensing moisture in the air and then refining the condensed water by the electrostatic atomization method Electrostatic atomization generating means for supplying indoors, moisture absorption / release means for absorbing and releasing ambient moisture, and humidity detection means for detecting humidity in the circulation air passage, the moisture absorption / release means, The electrostatic atomization generating means is disposed in the circulation air passage, and the moisture absorption / release means is provided upstream of the electrostatic atomization generating means, and the atmospheric humidity in the vicinity of the electrostatic atomization generating means. Keep within the specified humidity range It is intended to be.

  As a result, electrostatic atomization generating means is placed under appropriate humidity, so that electrostatic atomization generating particles containing radicals with strong oxidizing power and fine water molecule clusters with electricity can be generated. Can be generated and the generation amount thereof is stable, and the sterilization and deodorizing functions can be stably expressed. In addition, the electrostatic atomization generation particles are placed on the wind and exposed to clothing or a storage room. It is possible to directly give an effect to the place where the bacteria are generated and the source of the odor without wetting them.

  The dryer of the present invention is supplied from the electrostatic atomization generating means by controlling the ambient humidity of the electrostatic atomization generating means by the moisture absorption / release means without being affected by the installation environment and use conditions of the dryer. By stably exposing the electrostatic atomization particles to the storage room and the filter unit where the material to be dried is stored or to the material to be dried, the dryer and the material to be dried are protected from the growth of the bacteria and are also eliminated. It smells and can always be kept clean.

Schematic cross-sectional view of the dryer according to Embodiment 1 of the present invention. Schematic cross-section of electrostatic atomization generating means of the dryer Schematic of moisture absorption and release means of the dryer Relationship diagram between relative humidity and moisture content of moisture absorption / release means of the dryer Sectional schematic of the electrostatic atomization generation means of the dryer in Embodiment 2 of this invention

According to a first aspect of the present invention, there is provided a storage chamber that stores and rotates an object to be dried, a blower that blows air into the storage chamber, and the air that is blown into the storage chamber by operating the blower. Circulating air flow path for blowing out air, and generation of electrostatic atomization for supplying electrostatic atomization generating particles obtained by condensing moisture in the air and then refining the condensed water by an electrostatic atomization method into the storage chamber Means for absorbing and releasing ambient moisture, and humidity detecting means for detecting the humidity in the circulation air passage, wherein the moisture absorption and discharge means and the electrostatic atomization generating means are the circulation circuit. The moisture absorption / release means is disposed upstream of the electrostatic atomization generating means so as to keep the atmospheric humidity in the vicinity of the electrostatic atomization generating means within a predetermined humidity range. A dryer characterized by that Thus, even when the high-temperature and high-humidity air sent by the blower from the storage chamber of the object to be dried is dehumidified in the cooling unit and then blown at a high temperature and low humidity in the heating unit, Moisture that has been adsorbed is released into the air, and the humidity is increased to adjust the humidity around the electrostatic atomization generating means to stably generate a certain amount of electrostatic atomization generated particles. Electrostatic fog supplied from the electrostatic atomization generating means by controlling the humidity around the electrostatic atomization generating means by the moisture absorption / release means without being affected by the installation environment and usage conditions of the dryer By stably exposing the particles to be generated to the storage room or target object in which the material to be dried is stored, the dryer and target object are protected from the growth of bacteria and deodorized, so that it is always clean. Can be maintained.

  In particular, the second invention includes a heating means for heating the moisture absorption / release means in the first invention, and when the atmospheric humidity in the vicinity of the electrostatic atomization generating means is detected to be lower than a predetermined humidity range, By heating the moisture absorption / release means with the heating means, the humidity in the vicinity of the electrostatic atomization generating means is kept within a predetermined humidity range. The release means is quickly warmed and the moisture adsorbed by the suction / release means is quickly released, and the humidity in the vicinity of the electrostatic atomization generating means located on the downstream side of the moisture absorption / release means in the circulation air blowing path is set to a predetermined level. It can be within the humidity range.

  According to a third aspect of the present invention, in the heating means, in the second aspect of the invention, the drying means is characterized in that a heating means made of metal is provided around the moisture absorption / release means. The generated thermal energy is promptly transmitted with little loss to the moisture absorption / release means, and moisture can be released efficiently.

  In particular, the fourth invention includes a water supply means for supplying water to the moisture absorption / release means in any one of the first to third inventions, and the atmospheric humidity in the vicinity of the electrostatic atomization generating means is When the time detected that the humidity is lower than the predetermined humidity lasts for a predetermined time, the water supply means supplies the moisture absorption / release means with water, whereby a high temperature and low humidity hot air is provided. Even if the moisture absorption / release means is short in absolute amount, the amount of moisture adsorbed by the moisture absorption / release means will be increased actively, and the It can play the role of moisture absorption and release means even in low humidity conditions. At this time, the condensed water removed from the clothing generated during the drying operation is converted into capillaries using capillary action. Use in contact with moisture absorption / release means It is possible to more automatically supplied.

  In a fifth aspect of the invention, in particular, in any one of the first to fourth aspects of the invention, the moisture absorption / release means has a lattice-like filter shape and is made of a material containing at least one of zeolite and silica gel. By making the dryer characterized by the fact that each of the materials has an equilibrium adsorbed moisture amount while keeping the air path resistance when the air flows in the circulation air flow path small, The moisture content fluctuates according to the relative humidity in the vicinity of the atmosphere of the atomization generating means. When the relative humidity decreases, the adsorbed moisture is released, and when the relative humidity increases, the equilibrium adsorption moisture Moisture is adsorbed until the amount reaches, and the humidity in the vicinity can be kept constant.

  In a sixth aspect of the invention, in particular, in any one of the first to fifth aspects of the invention, the electrostatic atomization generating means includes a discharge electrode, a voltage applying means for applying a high voltage to the discharge electrode, and a discharge. Water supply means for supplying water to the electrode, wherein the water supply means cools the discharge electrode to condense moisture in the air to generate condensed water on the discharge electrode, and heat absorbed. By using a dryer characterized in that it is composed of radiating fins for discharging, it becomes possible to easily collect moisture from the air in the vicinity of the electrostatic atomization generating means, and moisture to the discharge electrode. By attaching, radical species such as highly oxidative ozone such as ozone generated during high-pressure discharge and atomized water molecules are easily combined, and furthermore, the reaction activity is achieved by surrounding the radical species as fine water molecules. The longevity of high radical species It becomes possible to achieve a reduction, by using a Peltier element in order to condense moisture in the air, it is possible to accurately temperature control, it is possible to express precisely the condensation phenomenon.

According to a seventh aspect of the present invention, in particular, in any one of the first to sixth aspects of the invention, the electrostatic atomization generating means is operated after the completion of drying. Even if the atmospheric humidity including the inside of the circulating air passage is extremely low, the condensed water of moisture removed from the material to be dried generated during the drying operation can be reduced by capillary action. Since it is in a state where the moisture absorption / release means has sufficient adsorbed water by making contact with the moisture absorption / release means using a thin tube, etc., it is possible to control the humidity in the vicinity of the electrostatic atomization generating means. It becomes possible. Further, since the humidity of the air sent with time does not change as in the drying operation, the operation control of the electrostatic atomization generating means becomes easy.

  The dryer according to the embodiment of the present invention will be described below with reference to the drawings for understanding of the present invention. The following description is a specific example of the present invention and does not limit the content of the claims.

(Embodiment 1)
1 is a schematic cross-sectional view of a dryer according to Embodiment 1 of the present invention, FIG. 2 is a schematic cross-sectional view of an electrostatic atomization generating unit of the dryer, and FIG. 3 is a moisture absorption / release unit of the dryer. FIG. 4 is a diagram showing the relationship between the relative humidity and the moisture content of the moisture absorption / release means of the dryer.

  In FIG. 1, a storage chamber 1 for storing a material to be dried is rotatably installed so that the direction of the rotation axis is horizontal, and a drying process is performed. In addition, a circulation air passage 2 provided with a blower unit 9 is formed, the air in the storage chamber 1 is sucked, and the storage chamber is again passed through the cooling means 3 and the heating means 4 provided in the circulation air passage 2. It is blowing out to 1.

  Further, a bypass circulation air passage 8 is provided between the downstream side of the heating means 4 in the circulation air passage 2 and the upstream side of the air blowing unit 9, and the moisture absorption / release means 6 from the upstream side in the bypass circulation air passage 8. Electrostatic atomization generating means 7 is disposed. The wind flowing through the circulation air flow path 2 flows through the bypass circulation air flow path 8 by the switching valve 5.

  Corresponding to the horizontal arrangement of the storage chamber 1, a clothing input port leading to the opening end of the storage chamber 1 is formed on the front side, and by opening the door 11, an object to be dried can be taken in and out of the storage chamber 1. It becomes. The storage chamber 1 is rotationally driven in the forward and reverse directions by a motor (not shown) disposed inside the dryer body.

  Further, a water supply means 10 for supplying a part of water condensed in the cooling means 3 provided in the circulation air flow path 2 to the moisture absorption / release means 6 is connected from the cooling means 3 to the moisture absorption / release means 6 by piping. ing. Here, even if the cooling means 3 is a method of cooling by flowing cold water through the cooling plate, it is configured by connecting a compressor, a condenser, a pressure reducing device, and an evaporator in an annular manner in order, and the refrigerant circulates in the piping. There is no problem even if it is an evaporator in a heat pump system. Further, there is no problem whether the heating means 4 is a heater type or a condenser in the heat pump system.

  In the operation of the first embodiment, moisture from the material to be dried in the course of the drying process is condensed in the cooling section provided in the circulation air passage 2, and a part of the moisture is utilized by a capillary phenomenon or a permeation phenomenon. The water supply means 10 supplies the moisture absorption / release means 6 to prevent the moisture amount absorbed by the moisture absorption / release means 6 from decreasing so that it is difficult to release, immediately after the end of drying, Even when it is used repeatedly for a long time, there is no problem in that the humidity atmosphere in the vicinity of the electrostatic atomization generating means 7 is appropriately controlled, and sufficient electrostatic atomization generating particles can be obtained. There is no particular problem. Further, there is no particular problem whether the storage chamber 1 is rotated or kept stationary during operation.

In FIG. 2, the electrostatic atomization generating means 7 is accommodated in the outer case 12 and installed in the circulation air flow path 5 in a unitized state. Here, the size of the outer case 12 is not particularly limited with respect to the diameter of the circulating air passage 5. Inside the outer case 12, the negative potential side of the voltage application unit 16 is electrically connected to the atomizing electrode 13 and the positive potential side to the counter electrode 14, respectively.
The tip of the atomizing electrode 13 and the counter electrode 14 are attached so as to be a fixed distance. Furthermore, the atomizing electrode 13 is thermally directly or indirectly fixed to a cooling unit 15 made of a good heat conducting member such as aluminum or stainless steel cooled by the Peltier element 17. There is no particular problem with the heat dissipating unit 18 even if heat exchange is performed with the air blown in the circulation air passage 5 or heat exchange with the surrounding air is performed regardless of the circulation air passage 5. An intake port 19 for sucking air and an exhaust port 20 for exhausting air are provided. Here, the moisture absorption / release means 6 according to the first embodiment is on the upstream side in the circulation air passage 5 and needs to be in contact with the entire air flowing through the circulation air passage 5, and the electrostatic atomization generation means 7. Although it may be physically separated from each other or may be provided at the intake port 19, it is preferably provided at the intake port 19.

In the generation of electrostatic atomization particles, when the cooling unit 15 is cooled by energizing the Peltier element 17, the thermally connected atomization electrode 13 is cooled to a dew point or lower. A dew condensation phenomenon occurs at the tip of the atomizing electrode 13 which has become the dew point temperature or lower, and water molecules present in the air begin to condense. By applying a voltage higher than the voltage application unit 16 between the atomizing electrode 13 and the counter electrode 14 (for example, the atomizing electrode 13 is 0 V (GND) and the counter electrode 14 is 4 to 10 kV), corona discharge is generated between both electrodes. The water droplets that occur and condensate on the tip of the atomizing electrode 13 are refined by electrostatic energy, and the droplets are further charged, so that the nano-level fine mist with invisible electrification of several nanometers due to Rayleigh splitting. Accompanying this, ozone and OH radicals are also generated. Here, although the voltage applied between the electrodes is as high as 4 to 10 kV, the discharge current value is several μA level, and the input is very small as 0.5 to 1.5 W. Yes.
It is very small.

  In FIG. 3, when the shape of the moisture absorption / release means 6 is attached to the intake port 19 of the electrostatic atomization generating means 7, the shape is adjusted to the shape of the intake port 19 and attached to the circulation air passage 5. At this time, there is no particular problem if it is matched with the shape of the circulation air flow path 5. Further, a plurality of through holes 22 are formed in order to reduce the flow resistance during blowing. Furthermore, in order to increase the amount of moisture released from the moisture absorption / release means 6 and to quickly release it, a heating means 23 is provided in the surroundings, and the temperature of the moisture absorption / release means 6 is adjusted by energizing the power supply 24 to release moisture. The amount is controlled.

  Next, the humidity adjustment mechanism in the vicinity of the electrostatic atomization generating means 7 will be described with reference to FIG. In FIG. 4, the rhombus is the moisture content of silica gel at the relative humidity when the moisture absorption / release means 6 is made of silica gel, and the square is the moisture content of the zeolite at the relative humidity when the moisture absorption / release means 6 is made of zeolite. is there. The moisture content is a percentage of the amount of adsorbed water relative to the solid weight and the amount of adsorbed water.

  If the moisture absorption / release means 6 made of zeolite is placed in an atmosphere with a relative humidity of 20%, the moisture content is about 19.5%, and the maximum moisture content in the air is 19.5% with respect to the weight of the zeolite. Adsorbs moisture. Here, if the surrounding relative humidity is reduced to 5%, the moisture content is reduced to about 5%, and the adsorbed moisture corresponding to 14.5%, which is the difference, is released. Actually, when the moisture is released, the relative humidity in the surrounding area also increases and settles in the middle, but the relative humidity in the surrounding area can be increased again by releasing the moisture.

Conversely, if the moisture absorption / release means 6 made of silica gel is placed in an atmosphere having a relative humidity of 60%, the moisture content is about 29.5%. Here, if the surrounding relative humidity is increased to 90%, the moisture content is increased to about 34.8%, so that moisture can be adsorbed from the surrounding and the relative humidity can be lowered. Furthermore, this humidity adjustment operation is preferably performed before the electrostatic atomizing means is operated. Further, the moisture absorbing / releasing means 6 is heated by the heating means 23 so as to increase the rate of releasing the adsorbed moisture or remove the moisture that has been sufficiently contained up to the equilibrium moisture content, thereby newly adsorbing moisture. The amount can be increased.

  Since the electrostatic atomization generation means 7 is placed under an appropriate humidity, it can generate electrostatic atomization generation particles including a fine lump of water molecules charged with electricity and radicals having strong oxidizing power. It can be generated and its generation amount is stable, so that sterilization and deodorizing functions can be stably expressed, and electrostatic atomization generation particles are placed on the wind and exposed to clothes, washing tubs and receptacles. Therefore, it is possible to directly give an effect to a place where bacteria are generated and a source of odor without wetting clothes or the like.

  Moreover, even if the atmospheric humidity including the inside of the circulation ventilation path 2 temporarily becomes extremely low immediately after completion | finish of drying by operating the electrostatic atomization generating means 7 after completion | finish of drying, it is. Adsorbed water sufficiently to the moisture absorption / release means 6 by bringing the condensed water of the water removed from the material to be dried generated during the drying operation into contact with the moisture absorption / release means 6 through a capillary tube using a capillary phenomenon. Therefore, the humidity in the vicinity of the electrostatic atomization generating means 7 can be controlled, and the humidity of the air sent over time does not vary as in the drying operation. Therefore, operation control of the electrostatic atomization generating means 7 becomes easy.

(Embodiment 2)
FIG. 5 shows a schematic cross-sectional view of the electrostatic atomization generating means of the dryer according to Embodiment 2 of the present invention. The same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In FIG. 5, the electrostatic atomization generating means 27 is provided with a moisture absorption / release means 6 at the intake port 19 and a humidity sensor 25 inside. The control unit 26 reads a signal from the humidity sensor 25 and processes a signal from the power supply 24 that performs ON / OFF control of the heating unit 23 surrounding the moisture absorption / release unit 21. Other configurations are the same as those of the first embodiment. Below, operation | movement of the electrostatic atomization generating means 27 of Embodiment 2 is demonstrated below.

  Before starting the sterilization and deodorizing operation with the electrostatic atomization generating particles, the signal from the humidity sensor 25 installed in the outer case 12 is read by the control unit 26, and the inner case 12 (that is, the electrostatic atomization generating means) It is grasped whether the humidity in the vicinity of (27) is an appropriate humidity environment for generating electrostatic atomization generation particles. At this time, the humidity environment is preferably in the range of 30% RH to 80% RH. When it is determined that the humidity is low and has deviated from the appropriate humidity, the heating means 23 is turned on, and the moisture absorbed and released means 21 is heated to release the adsorbed moisture, and the humidity in the outer case 12 To increase. Again, it becomes possible to reach an appropriate humidity region by controlling the heating means 23 while observing the humidity in the outer case 12 with the humidity sensor 25.

  On the contrary, the moisture absorption / release means 21 prevents the intrusion of moisture and the inside of the outer case 12 is rarely humid. However, even if it becomes temporary, the moisture absorption / release means 23 is heated. While the air is blown and the moisture content once adsorbed is released to reduce the moisture content, the amount of moisture that can be adsorbed increases, and when the air blow is stopped, the surrounding moisture is adsorbed, It becomes possible to maintain the humidity within an appropriate range. Also, cooling the moisture absorption / release means 27 increases the amount of water that can be adsorbed, so there is no problem even if cooling is performed.

After confirming from the signal of the humidity sensor 25 that the vicinity of the electrostatic atomization generating means 27 is in an appropriate humidity region, the Peltier element is energized to cool the atomization electrode 13 to the dew point or less and in the air. Moisture is condensed on the atomizing electrode. By applying a voltage higher than the voltage application unit 16 between the atomizing electrode 13 and the counter electrode 14, corona discharge occurs between both electrodes, and water droplets condensed on the tip of the atomizing electrode 13 are refined by electrostatic energy. In addition, since the droplets are charged, ozone, OH radicals, and the like are also generated along with nano-level fine mist having electrification that cannot be seen on the order of several nanometers due to Rayleigh splitting.

  Then, after the air is sent to the bypass circulation air passage 8 by the switching valve 5, the air atomizing generation particles 27 generated in the electrostatic atomization generating means 27 are accommodated by operating the air blowing unit 9. The effect can be imparted to the object to be deodorized and sterilized which is sent into the storage chamber 1 and placed in the storage chamber 1. In addition, even when no object is placed in the storage chamber 1, deodorization and sterilization in the storage chamber 1 are performed.

  As described above, the dryer according to the present invention has a stable electrostatic mist in the storage chamber and the filter unit for storing the material to be dried and the material to be dried, regardless of the operating conditions of the dryer. By supplying the particles that generate chemicals, it is possible to protect the matter to be dried, the storage chamber, and the filter from the growth of bacteria, and to maintain the deodorizing effect and keep it clean. It can be applied to equipment around water that employs an electro-misting method, and is safe and harmless, so it is suitable for household equipment.

DESCRIPTION OF SYMBOLS 1 Storage chamber 5 Circulation ventilation path 6 Moisture absorption / release means 7 Electrostatic atomization generation means 8 Bypass circulation ventilation path

Claims (7)

A storage chamber that accommodates and rotates the object to be dried, a blower that blows air into the storage chamber, and a circulation ventilation path that sucks air in the storage chamber by operating the blower and blows air back into the storage chamber And electrostatic atomization generating means for supplying electrostatic atomization generating particles obtained by condensing moisture in the air and then refining the condensed water by an electrostatic atomization method, and surrounding moisture A moisture absorbing / releasing means for absorbing and releasing the moisture and a humidity detecting means for detecting the humidity in the circulating air passage, wherein the moisture absorbing / releasing means and the electrostatic atomization generating means are disposed in the circulating air passage. The moisture absorption / release means is provided upstream of the electrostatic atomization generating means so as to keep the atmospheric humidity in the vicinity of the electrostatic atomization generating means within a predetermined humidity range. Machine. A heating means for heating the moisture absorption / release means is provided, and when the atmospheric humidity in the vicinity of the electrostatic atomization generating means is detected to be lower than a predetermined humidity range, by heating the moisture absorption / release means by the heating means, 2. The dryer according to claim 1, wherein an atmospheric humidity in the vicinity of the electrostatic atomization generating means is maintained within a predetermined humidity range. 3. The dryer according to claim 2, wherein a heating means made of metal is provided around the moisture absorption / release means. The water supply means includes water supply means for supplying water to the moisture absorption / release means, and when the atmospheric humidity in the vicinity of the electrostatic atomization generating means is detected to be lower than the predetermined humidity for a predetermined time, the water supply means The drier according to any one of claims 1 to 3, wherein water is supplied to the moisture absorption / release means. 5. The drying according to claim 1, wherein the moisture absorption / release means has a lattice-like filter shape and is made of a material containing at least one of zeolite and silica gel. Machine. The electrostatic atomization generating means includes a discharge electrode, a voltage applying means for applying a high voltage to the discharge electrode, and a water supply means for supplying water to the discharge electrode, wherein the water supply means is the discharge electrode. 6. A peltier element that cools the air and condenses moisture in the air to generate condensed water on the discharge electrode, and a heat dissipating fin for releasing the absorbed heat. The dryer according to any one of the above. The drier according to any one of claims 1 to 6, wherein the electrostatic atomization generating means is operated after completion of drying.