JP2009078059A - Bathroom clothes dryer - Google Patents

Abstract

An object of the present invention is to provide a bathroom clothes dryer that dries clothes with a minimum required heating amount according to a target end time.
A bathroom clothes dryer includes a ventilation fan, a blower fan, a heater, a lid, an operation unit, an infrared sensor, a thermometer, and a controller. The user sets the target finish time t _g of clothes drying, to start the operation. The controller 17 determines whether the slowest-drying clothing has reached the critical drying rate from the lowest clothing temperature detected by the infrared sensor 14, and if the clothing has reached the critical drying rate, it has been required until then. from the time, it is determined whether or not the most dry slow clothes to dry on to the target end time t _g. Only when the drying end time of the slowest-drying clothing estimated by the controller 17 exceeds the target finishing time, the heater 11 is operated in accordance with the excess time, and the clothing is adjusted so that the heating amount is minimized. dry.
[Selection] Figure 6

Description

  The present invention relates to a bathroom clothes dryer used for drying clothes in a general residential bathroom.

  Clothes after washing were originally dried outdoors, and drying by sunlight was common. However, in recent years, the number of dual-income households and single-person households has increased, and the number of cases where clothes are dried indoors or in the bathroom to prevent washing or theft at night is increasing.

  When clothes are dried in the bathroom, the clothes can be heated and blown and ventilated forcibly using a bathroom ventilation dryer that has heating, ventilation and ventilation functions. dry. However, at that time, a large amount of energy is a problem. In households where clothes are dried indoors, clothes are left for a long time, such as drying clothes in the morning and leaving work until the evening, or drying clothes at night and going to bed and leaving until morning. There are many cases. In this case, it is not always necessary to dry the garment in a short time. Rather, it may take a certain amount of time, and there is a need to dry the garment to save energy.

  The control of the conventional bathroom clothes dryer 101 will be described with reference to FIG. The configuration of the bathroom clothes dryer 101 is not shown.

  The bathroom clothes dryer 101 includes an air inlet and an outlet in the bathroom, a ventilation means for discharging air in the bathroom to the main body, a blowing means for sending wind to the clothes, a louver for changing the wind direction of the blowing means, A heating means for heating the air sent to the clothing, a moisture sensor for detecting the presence or absence of moisture in the clothing, and a control means for controlling the previous louver so as to blow in the direction of moisture detected by the moisture sensor It is.

As a control method, first, as an initial operation mode (S103 to S106), heated air is blown to clothing using the blowing means and the heating means while ventilating with the ventilation means. At this time, the louver is periodically swung left and right so that the heated air hits the entire clothing. Next, it becomes a selection operation mode (S107-S109). At this time, moisture contained in the clothing is detected by the moisture sensor (S107), and the louver is controlled so that the control means blows in the direction of the detected moisture (S108, S109). Thereby, drying of the part which has not dried clothes is accelerated | stimulated. Finally, when moisture is no longer detected, the operation is terminated (S110) (see, for example, Patent Document 1).
JP 2000-254398 A

  The conventional method for controlling a clothes dryer for a bathroom as exemplified in Patent Document 1 heats the interior of the bathroom with heating means from the start of drying clothes until the end of operation. There was a problem of consumption and not energy saving.

  SUMMARY OF THE INVENTION The present invention solves such a conventional problem, and an object thereof is to provide an energy-saving bathroom clothes dryer that dries clothes with a necessary minimum heating amount according to a target end time. .

  In order to achieve the above object, the present invention provides an operation unit for instructing a target end time and an operation start until the user finishes drying clothes, a ventilation means for discharging air inside the bathroom, and a bathroom. Blower means for sending air to clothes hung on a bag installed inside, heating means for applying heat to the clothes, radiation temperature detection means for detecting the surface temperature of the clothes, the operation section, and the radiation temperature Control means for controlling the ventilation means, the air blowing means and the heating means in response to a signal from the detection means, and the control means according to the surface temperature of the clothing detected by the radiation temperature detection means and the target end time. Is a bathroom clothes dryer for controlling the operation of the heating means.

  By this means, clothes can be dried according to the target end time, and an energy-saving bathroom can dry clothes with the minimum required heating amount according to the target end time without drying more than necessary. A clothes dryer is obtained.

  In order to achieve the above-mentioned object, the other means comprises a wind direction varying means for detecting the surface temperature at a plurality of points by the radiation temperature detecting means and changing the wind direction of the air blown from the blowing means, and the wind direction varying means is controlled. And the control means determines the direction in which the wet part of the clothing is present from the surface temperatures of the plurality of points detected by the radiation temperature detecting means, and the wet part of the clothing is present using the wind direction varying means. It is a clothes dryer for bathrooms that blows air in the direction.

  By this means, it is possible to obtain a bathroom clothes dryer that reduces unevenness in drying of clothes and shortens drying time of the entire clothes.

  In order to achieve the object, the other means detects the wet part of the clothing using the radiation temperature detecting means, and blows air toward only the range where the wet part of the clothing exists. Clothes dryer.

  By this means, it is possible to obtain a bathroom clothes dryer that reduces unevenness in drying of clothes and shortens drying time of the entire clothes.

  In order to achieve the above object, the other means detects the part of the garment where the drying is slowest using a radiation temperature detecting means, and blows air toward the part of the garment where the drying is slowest. It is a clothes dryer.

  By this means, there is no waste of blowing air to an already dry part, and this is a bathroom clothes dryer that efficiently shortens the drying time of the entire clothes.

  In order to achieve the object, the other means detects the surface temperature at a plurality of points by the radiation temperature detecting means, the control means judges the minimum temperature from the surface temperatures at the plurality of points, and determines the minimum temperature and The bathroom clothes dryer in which the control means controls the operation of the heating means according to the target end time.

  By this means, a bathroom clothes dryer that controls the amount of heating in accordance with the slowest drying clothes can be obtained.

  Another means is a bathroom clothes dryer provided with a rotating means for changing the detection direction of the radiation temperature detecting means in order to achieve the object.

  By this means, a bathroom clothes dryer for detecting the surface temperature of the part of the garment facing the bathroom space can be obtained.

  Still another means is a bathroom clothes dryer provided with a moving means for moving the radiation temperature detecting means in a direction parallel to the bag in order to achieve the above object.

  By this means, a clothes dryer for the bathroom that detects the surface temperature of the part where the clothes face each other can be obtained.

  According to another aspect of the present invention, in order to achieve the above object, the surface temperature of the garment suspended within the predetermined range of the heel is moved by moving the radiation temperature detecting means in a direction parallel to the heel using the moving means. For clothes that are detected and hung outside a predetermined range of the bag, the clothes dryer for bathrooms detects the surface temperature by rotating the radiation temperature detecting means using a rotating means.

  By this means, the surface temperature of the part where the garments face each other is detected for clothes hung within a predetermined range of the bag, and the bathroom space is used for clothes hung outside the predetermined range of the bag. The clothes dryer for bathrooms which detects the surface temperature of the site | part which faced is obtained.

  Another means is a bathroom clothes dryer that activates the heating means only when the control means determines that the heating means must be used to dry the clothes by the target end time in order to achieve the object. It is.

  By this means, a bathroom clothes dryer for drying clothes with a minimum necessary heating amount according to a target end time can be obtained.

  In order to achieve the above object, the other means includes a room temperature detecting means for measuring the temperature inside the suction port of the air blowing means or the ventilation means, and the temperature detected by the room temperature detecting means and the radiation temperature detecting means are detected. This is a bathroom clothes dryer that estimates the drying situation of clothes from the temperature difference from the minimum temperature.

  By this means, a bathroom clothes dryer for estimating the drying condition of clothes using only the detection means of the radiation temperature detection means and the room temperature detection means can be obtained.

  In order to achieve the above object, the other means is that when the temperature difference between the temperature detected by the room temperature detecting means and the minimum temperature detected by the radiation temperature detecting means is not more than a predetermined value, It is a clothes dryer for bathrooms that the control means determines that the required time is reached and the time required for the clothes to dry is estimated from the actual time required until the limit drying rate is reached.

  By this means, a bathroom clothes dryer for estimating the drying end time of clothes using only the radiation temperature detection means and the detection means of room temperature detection means can be obtained.

  Further, in order to achieve the above object, when the time required for the clothes to dry without using the heating means exceeds the target end time, the heating means is set according to the excess time. It is a clothes dryer for bathrooms that operates.

  By this means, a bathroom clothes dryer for drying clothes with a minimum necessary heating amount according to a target end time can be obtained.

  Further, in order to achieve the above object, if the clothing does not reach the critical drying rate even if the remaining time until reaching the target end time reaches a predetermined time in order to achieve the above-mentioned purpose, after that, the clothing is removed using the heating means. It is a clothes dryer for the bathroom to be dried.

  By this means, a bathroom clothes dryer can be obtained in which clothes are reliably dried by the target end time.

  In order to achieve the object, the other means stops the heating means when the target end time is reached, and then uses the heating means to dry the clothes again if the clothes are not yet dried. It is a dryer.

  By this means, a bathroom clothes dryer that promotes drying of clothes that have not dried even after the target end time is obtained.

  In order to achieve the above object, the other means is provided with a lid on the detection portion of the radiation temperature detection means, and closes the lid when the bathroom clothes dryer is not in operation, and the air inside the bathroom causes the detection portion to It is a clothes dryer for bathrooms that is made not to come into contact with.

  By this means, a clothes dryer for the bathroom in which the detection part of the radiation temperature detection means is unlikely to deteriorate can be obtained.

  In order to achieve the above-mentioned object, the other means comprises a detection part of the radiation temperature detection means adjacent to the blowout port of the blower means, and a lid that can be used as a current plate at the blowout port of the blower means, When the lid is closed, the bathroom clothes dryer prevents the air inside the bathroom from coming into contact with the detection part of the radiation temperature detection means.

  By this means, a bathroom clothes dryer can be obtained in which the wind sent from the blower means reliably hits the clothes and the detection part of the radiation temperature detecting means is less likely to deteriorate.

  In order to achieve the above object, the other means is provided with a button capable of selecting the operation mode in the operation unit, and when the heating mode is selected, the bathroom clothing that blows air toward a portion where the temperature inside the bathroom is low. It is a dryer.

  By this means, a bathroom clothes dryer that warms the entire bathroom evenly can be obtained.

  In order to achieve the above object, the other means is that the main body is installed behind the ceiling of the bathroom, the bathroom inner wall is provided with an operation part in the bathroom, and the radiation temperature detection means is mounted at least in the operation part in the bathroom. It is a clothes dryer for bathrooms.

  By this means, a bathroom clothes dryer that detects the surface temperature of a portion where the wind of clothes is difficult to reach can be obtained.

  According to the present invention, clothes can be dried according to the target end time, and the clothes dryer for bathrooms can dry the clothes in an energy-saving manner with the minimum amount of heating without heating the clothes more than necessary. Is obtained.

  Moreover, the effect of reducing the drying unevenness of clothing and shortening the drying time of the whole clothing is acquired.

  Moreover, the effect of controlling the amount of heating in accordance with the slowest-drying clothing can be obtained.

  In addition, the surface temperature of the garment facing the garment is detected for clothes hung within a predetermined range of the heel, and the bathroom space is struck for clothes hung outside the predetermined range of the heel. The effect of detecting the surface temperature of the affected part is obtained.

  Further, there is no waste of blowing air to the already dried portion, and an effect of efficiently shortening the drying time of the entire clothing can be obtained.

  Moreover, the effect of estimating the drying condition and drying completion time of clothing using only the detection means of the radiation temperature detection means and the room temperature detection means is obtained.

  In addition, an effect of reliably drying the clothing by the target end time can be obtained.

  In addition, an effect of promoting drying of clothes that have not dried even after the target end time has been obtained.

  In addition, it is possible to obtain an effect that the wind sent from the blower means reliably hits the clothing and the detection part of the radiation temperature detection means is hardly deteriorated.

  Moreover, the effect that the whole bathroom is warmed uniformly is acquired.

  Moreover, the effect that the surface temperature of the site | part where the wind of clothing cannot reach easily is acquired.

  The invention according to claim 1 of the present invention includes an operation unit for instructing a target end time until the user finishes drying clothes and a start of operation, ventilation means for discharging air inside the bathroom, and inside the bathroom. A blowing means for sending air to clothes suspended from a bag installed in a bag, a heating means for applying heat to the clothes, a radiation temperature detecting means for detecting a surface temperature of the clothes, the operation unit, and the radiation temperature detection Control means for controlling the ventilation means, the air blowing means, and the heating means in response to a signal from the means, and the control means is responsive to the surface temperature of the clothing detected by the radiation temperature detection means and the target end time. It is a clothes dryer for bathrooms that controls the operation of the heating means, estimates the drying state of the clothes from the surface temperature of the clothes, and calculates the amount of heating necessary to dry the clothes by the target end time thing This makes it possible to dry clothes according to the target end time, and saves energy in the bathroom by drying the clothes with the minimum amount of heating without heating the clothes more than necessary to dry the clothes. Can be provided.

  According to a second aspect of the present invention, the radiation temperature detecting means further comprises a wind direction varying means for detecting the surface temperature at a plurality of points and changing the wind direction of the air blown from the blower means, and the wind direction varying means is controlled by the control means. The direction of the wetted part of the clothing is determined by the control means from the surface temperatures of the plurality of points that are controlled and detected by the radiation temperature detecting means, and the wetted part of the clothing is in the direction of using the wind direction varying means. It is a bathroom clothes dryer that blows air, and can provide a bathroom clothes dryer that reduces drying unevenness of clothes and shortens drying time of the entire clothes.

  The invention according to claim 3 of the present invention is a bathroom garment in which a wet part of the garment is detected using a radiation temperature detecting means and air is blown only to a range where the wet part of the garment exists. It is a dryer and can provide the clothes dryer for bathrooms which reduces the drying unevenness of clothing and shortens the drying time of the whole clothing.

  Further, the invention according to claim 4 of the present invention is to dry a bathroom garment in which a part of the garment that is dried most slowly is detected using a radiation temperature detecting means, and air is blown toward the part of the garment that is dried most slowly. Therefore, it is possible to provide a bathroom clothes dryer that can efficiently reduce the drying time of the entire clothes without waste of blowing air to an already dry portion.

  Further, in the invention according to claim 5 of the present invention, the radiation temperature detecting means detects a plurality of surface temperatures, the control means judges a minimum temperature from the plurality of surface temperatures, and the minimum temperature and the target It is possible to provide a bathroom clothes dryer in which the control means controls the operation of the heating means in accordance with the end time, and the bathroom clothes dryer controls the heating amount in accordance with the slowest drying clothes.

  The invention according to claim 6 of the present invention is a bathroom clothes dryer provided with a rotating means for changing the detection direction of the radiation temperature detecting means, and for a bathroom that detects the surface temperature of the part of the clothes facing the bathroom space. A clothes dryer can be provided.

  The invention according to claim 7 of the present invention is a bathroom clothes dryer provided with a moving means for moving the radiation temperature detecting means in a direction parallel to the bag, and detects the surface temperature of the part where the clothes face each other. A bathroom clothes dryer can be provided.

  In the invention according to claim 8 of the present invention, for clothes hung within a predetermined range of the heel, the surface temperature is detected by moving the radiation temperature detecting means in a direction parallel to the heel using the moving means. The clothes hung outside the predetermined range of the basket is a bathroom clothes dryer that detects the surface temperature by rotating the radiation temperature detection means using a rotating means, and is within the predetermined range of the basket. A bathroom that detects the surface temperature of the part where the garment and the garment face each other for hanging clothes, and detects the surface temperature of the part that faces the bathroom space for hangable clothes outside the predetermined range of the bag. A clothes dryer can be provided.

  The invention according to claim 9 of the present invention is a clothes dryer for a bathroom that activates a heating means only when the control means determines that the heating means must be used to dry the clothes by the target end time. It is possible to provide a bathroom clothes dryer that dries clothes with a necessary minimum heating amount according to a target end time.

  The invention according to claim 10 of the present invention further includes a room temperature detecting means for measuring the temperature inside the air inlet of the air blowing means or the ventilation means, and the temperature detected by the room temperature detecting means and the lowest temperature detected by the radiation temperature detecting means. A clothes dryer for a bathroom that estimates the drying condition of clothes from the temperature difference between the temperature and the clothes dryer for the bathroom that estimates the drying condition of clothes using only detection means of radiation temperature detection means and room temperature detection means be able to.

  According to the eleventh aspect of the present invention, when the temperature difference between the temperature detected by the room temperature detecting means and the minimum temperature detected by the radiation temperature detecting means is equal to or less than a predetermined value, the clothing has a critical drying rate. It is a clothes dryer for bathrooms that the control means determines that the time required for the clothes to dry is estimated from the actual time required until the critical drying rate is reached, and only the radiation temperature detection means and the room temperature detection means are detection means. It is possible to provide a clothes dryer for bathrooms that estimates the drying end time of clothes by using.

  In the invention according to claim 12 of the present invention, when the time required for the clothes to dry without using the heating means exceeds the target end time, the heating means is operated according to the excess time. It is a bathroom clothes dryer and can provide a bathroom clothes dryer that dries clothes with a minimum necessary heating amount according to a target end time.

  In the invention according to claim 13 of the present invention, if the clothing does not reach the critical drying rate even if the remaining time until the target end time is reached, the clothing is dried using the heating means thereafter. A bathroom clothes dryer that can reliably dry clothes by a target end time can be provided.

  According to the fourteenth aspect of the present invention, the heating means is stopped when the target end time is reached, and then the clothes are dried again using the heating means when the clothes are not yet dried. Therefore, it is possible to provide a bathroom clothes dryer that promotes drying of clothes that have not been dried even after the target end time has passed.

  According to a fifteenth aspect of the present invention, the detection unit of the radiation temperature detection means includes a lid, and the lid is closed when the bathroom clothes dryer is not in operation, and the air inside the bathroom contacts the detection unit. It is a bathroom clothes dryer which is made not to be used, and a bathroom clothes dryer in which the detection part of the radiation temperature detection means is hardly deteriorated can be provided.

  According to a sixteenth aspect of the present invention, the detector of the radiation temperature detector is provided adjacent to the outlet of the blower, and the outlet of the fan is provided with a lid that can be used as a current plate. This is a bathroom clothes dryer that prevents the air inside the bathroom from coming into contact with the detection part of the radiation temperature detection means when it is closed, and the air sent from the blower means reliably hits the clothes and detects the radiation temperature. It is possible to provide a clothes dryer for a bathroom in which the detection part of the means is hardly deteriorated.

  According to a seventeenth aspect of the present invention, there is provided a button for selecting an operation mode on the operation unit, and when the heating mode is selected, the clothes dryer for the bathroom blows air toward a portion where the temperature inside the bathroom is low. Therefore, it is possible to provide a bathroom clothes dryer that warms the entire bathroom evenly.

  The invention according to claim 18 of the present invention is for a bathroom in which the main body is installed behind the ceiling of the bathroom, the bathroom inner wall is provided with a bathroom operation section, and the radiation temperature detecting means is mounted at least in the bathroom operation section. It is a clothes dryer and can provide a bathroom clothes dryer that detects the surface temperature of a portion where the wind of clothes is difficult to reach.

(Embodiment 1)
A bathroom clothes dryer 1 according to Embodiment 1 of the present invention will be described with reference to FIGS. The bathroom clothes dryer 1 is installed behind the ceiling of the bathroom, and has at least one basket P for hanging the clothes C inside the bathroom. First, the configuration of the bathroom clothes dryer 1 will be described with reference to FIG. FIG. 1 is a cross-sectional view of a bathroom clothes dryer 1.

  The bathroom clothes dryer 1 includes a ventilation fan 2 as a ventilation means, a motor 3 and a suction port 4 for sucking air from the bathroom, and a discharge port 5 for discharging air to the outdoors.

The ventilation fan 2 is a sirocco fan so that the air volume can be secured even when pressure is required when air is sucked. The motor 3 is provided with a strength notch so that the ventilation amount can be selected when the ventilation mode is selected. When the ventilation fan 2 and the motor 3 are selected, the air volume at the strong notch is set to about 300 [m ³ / h], for example. When the air volume at the strong notch cannot be as ^{high as} 300 [m ³ / h], it is desirable that the air flow is at least 200 [m ³ / h] in order to dry clothes as much as possible.

  Moreover, the clothes dryer 1 for bathrooms is equipped with the ventilation fan 6 as a ventilation means, the motor 7 (not shown), the suction inlet 8 which suck | inhales air from a bathroom, and the blower outlet 9 which blows off air to a bathroom. The outlet 9 is provided with a louver 10 as a wind direction changing means, a heater 11 as a heating means, and a lid 12.

The blower fan 6 is a cross flow fan so as to blow air to clothing C as wide as possible. In selecting the blower fan 6 and the motor 7, an air flow of at least about 300 [m ³ / h] is obtained. However, in order to dry the garment C in an energy-saving manner, as much as possible within the range where noise is not a problem. A large air volume should be obtained. The heater 11 is a PTC heater having a heating amount of 1000 to 2000 [W].

  The lid 12 is connected so that the shaft 12a rotates coaxially with the shaft of a motor 12b (not shown), and the lid 12 opens and closes when the motor 12b rotates. The motor 12b is a stepping motor. The lid 12 can also be used as a current plate that sends wind in a direction in which the clothing C is placed when the clothing C is dried. Since the relative positional relationship between the bathroom clothes dryer 1 and the clothes C varies depending on the specifications of the bathroom, the angle when the lid 12 is opened needs to be adjusted in advance in each bathroom before use. The lid 12 can be fixed at several stages of opening so that air can be blown toward a relatively low-temperature part inside the bathroom when the heating mode is selected. At this time, positional considerations are necessary so as not to hit the louver 10.

  The operation of the louver 10 will be described with reference to FIG. FIG. 2 is a cross-sectional view showing an operating mechanism of the louver 10. The louver 10 is connected to the motor 10b via the arm 10a. When the motor 10b is tilted, the louver 10 is tilted in the same direction as shown in FIG. The motor 10b is a stepping motor.

  Moreover, the clothes dryer 1 for bathrooms is equipped with the operation part 13 in an adjacent room (a wash-dressing room etc.). FIG. 3 is a layout diagram of the operation unit 13. As shown in FIG. 3, the operation unit 13 includes a power button 13a, a start button 13b, a clothes drying button 13c, a heating button 13d, a ventilation button 13e, and an air blowing button 13f, and the operation mode is among clothes drying, heating, ventilation, and air blowing. You can choose from. The operation unit 13 includes a target end time setting button 13g that can set a target end time when the clothes drying mode is selected.

  The bathroom clothes dryer 1 includes an infrared sensor 14 as a radiation temperature detection means and a thermometer 15 as a room temperature detection means. The infrared sensor 14 has a compound eye so that a plurality of radiation temperatures can be detected in a direction perpendicular to the eyelid P. The structure of the infrared sensor shown in FIG. 4 is such that there is no gap between the upper part and the side surface of the infrared sensor 14, and a magnet 14a and a cushioning material 14b are arranged on the lower part. When the cover 12 is closed, the magnet 14a and the cover 12 As a result, the detection unit 14c of the infrared sensor 14 can be sealed. In this way, the detection unit 14c can be sealed to prevent the detection unit 14c from being exposed to high-humidity air during bathing, and the infrared sensor 14 that is weak in a high-humidity state is used with accuracy over a long period of time. be able to. The thermometer 15 is a thermocouple.

  The behavior of the infrared sensor 14 will be described. Since the infrared sensor 14 can detect only the surface temperature at a plurality of fixed points, it is necessary to change the position or the detection angle of the infrared sensor in order to detect the surface temperature of the entire clothes suspended in the bathroom. Therefore, the infrared sensor 14 can detect the entire clothing by the moving / rotating mechanism 16 as the moving means and the rotating means.

  FIG. 5 shows the configuration of the moving / rotating mechanism 16. FIG. 5A is a vertical sectional view showing the positional relationship between the bathroom clothes dryer 1 and the clothes C inside the bathroom, and FIG. 5B is a horizontal sectional view thereof. The moving / rotating mechanism 16 includes a motor 16a, a pulley 16b and a pulley 16c rotated by the motor 16a, a belt 16d rotated by the pulleys 16b and 16c, a support 16e fixed to the belt 16d, and an infrared ray from the support 16e. It comprises an arm 16f that suspends the sensor 14 so as to be rotatable, and stoppers 16g and 16h that stop the support 16e at a predetermined position.

  When the motor 16a rotates, the belt 16d and the support 16e move to change from the state shown in FIG. 5A to the state shown in FIG. At this time, when the protrusion 16i of the stopper 16h hits the infrared sensor 14 and the motor 16a further rotates, the infrared sensor 14 rotates as shown in FIG. 5C, and the support 16e hits the stopper 16h and stops. Thereafter, the motor 16a rotates in the reverse direction and performs the same detection on the reverse side. In this way, the infrared sensor 14 moves in parallel with the heel P in the predetermined range Pa of the heel P, detects the surface temperature of the garment C, and rotates in the range Pb other than the predetermined range Pa, thereby changing the garment. The surface temperature of C is detected. The motor 16a is a stepping motor so that it can behave at an angle as small as possible so that each piece of clothing C can be captured. Further, the measurement per one point is stopped for a predetermined time (for example, 10 seconds), and the infrared sensor 14 sends the time average temperature during that time to the controller 17. In this way, the noise included in the surface temperature can be relatively reduced.

FIG. 6 shows the positional relationship among the bathroom clothes dryer 1, the basket P, and the clothes C. FIG. 6A is a vertical sectional view of the bathroom, and FIG. 6B is a horizontal sectional view of the bathroom. When the clothing C is densely dried on the bag P, the portion C _in where the clothing C faces each other is hard to reach the wind and is slow to dry, and the surface temperature is difficult to detect. But infrared sensor 14 when it detects while moving parallel to the rod P, and if the garment C is relatively easy to detect even the site C _in facing. Therefore, a predetermined range Pa can be designated in advance as a thick zone, and 竿 P can clearly distinguish the thick zone from other thin / small zones that are ranges Pb other than the predetermined range Pa by color and shape. Thus, the user hangs thick clothes and clothes that are difficult to dry in the thick zone. The thick clothing is, for example, a bath towel, denim jeans, or a trainer, the thin clothing is, for example, a blouse, a T-shirt, or a Y-shirt, and the small clothing is, for example, a sock, a handkerchief, or a bra. By doing in this way, about the clothing which is hard to dry, the infrared sensor 14 moves in parallel with the bag P, and it can make it easy to detect the surface temperature of the clothing C.

  The bathroom clothes dryer 1 includes a controller 17 as control means. The controller 17 has a timer function and a storage function. The controller 17 is connected to the motors 3, 7, 10 b, 12 a, 16 a, the heater 11, the operation unit 13, the infrared sensor 14, and the thermometer 15, and receives an instruction sent from the operation unit 13. Based on the information of the infrared sensor 14 and the thermometer 15, the operation of the motors 3, 7, 10b, 12a, 16a and the heater 11 is controlled.

  The bathroom clothes dryer 1 includes a metal or resin casing 18. The casing 18 is installed behind the ceiling of the bathroom.

  Next, an outline of the operation when the clothes drying mode is selected will be described with reference to FIG. FIG. 7 is a flowchart showing the control of the clothes drying mode. Details of the control of each stage will be described later. In addition, description is abbreviate | omitted about control when ventilation mode and ventilation mode are selected. The control when the heating mode is selected will be described later.

When the user first presses the power button 13a (S01) and then presses the clothes drying button 13c (S03), the target end time t _g [h] can be input by the target end time setting button 13g. The user inputs the target end time t _g [h], for example, as the time required to finish the drying of clothing such as 8 hours (S04), and presses the start button 13b. When the start button 13b is pressed, the selection of the clothes drying mode and the input target end time are sent to the controller 17 as a signal.

  The controller 17 receives the signal and starts the clothes drying operation (S05). The controller 17 starts measuring time using a timer function at the start of operation. The control contents of the controller 17 are as follows.

First, the surface temperature of the clothing C is detected, and the minimum temperature T _min of the detected clothing is stored (S06). Next, it is determined whether or not the clothing having the lowest temperature T _min , that is, the slowest drying clothing C _min has reached the critical drying rate (S07). If the slowest drying clothing C _min has not reached the critical drying rate, it is determined whether the forced heating operation start time t _fh has been reached (S08). Dry (S08a), and if not reached, clothes C are dried only by ventilation and ventilation (S08b). In S08b, after clothing C is dried for about 10 minutes, the process returns to S06 again.

Also if the driest slow clothes C _min is maxed drying rate r _lim, infer clothes C _min drying end time t _f of the clothes drying is finished in (S09), the drying end time t _f of clothing whether is within the target end time t _g, i.e. dried within a target end time t _g is determined whether or not to end (S10). If dry within target finish time t _g is the end, such is unlikely, drying the clothing C by using the heater 11 (S10a), when dried to within target finish time t _g is likely to end, the blower and ventilation only The clothes C are dried (S10b).

When the target end time _tg is reached, the driving is terminated (S11), and then the monitoring operation for monitoring whether the clothes are dry is continued (S12). Finally, the user presses the power button 13a to finish (S14).

  The detailed contents of the control at each stage will be described below.

First, an operation S06 for detecting the surface temperature of the clothing C and storing the detected minimum temperature T _min of the clothing will be described. The controller 17 sends an instruction to the motor 16a to move and rotate the infrared sensor 14, and detects the surface temperature of the clothing C within a detectable range. The movement / rotation mechanism is as described above. At this time, the controller 17 stores the detected minimum clothing temperature T _min using the storage function.

While moisture evaporates from the clothing surface, latent heat of vaporization is lost, and the clothing surface is at a temperature lower than the ambient air temperature. In a state where there is a water film on the clothing surface (constant rate drying period), the clothing surface temperature is uniformly low regardless of the type of clothing. In a state where the water film on the clothing surface has disappeared (decreasing drying period), the surface temperature of the clothing becomes comparable to the ambient air temperature over time. Therefore, the portion having the lowest clothing temperature T _min in the surface temperature of clothing C can be said to be the slowest dry portion. In addition, since the infrared sensor 14 cannot distinguish and detect the clothing C and other bathroom walls, it is desirable that there are no water droplets inside the bathroom. When clothes are dried using the bathroom clothes dryer 1 immediately after bathing, the user either wipes off the water droplets in the bathroom in advance or ventilates and blows air for several tens of minutes before starting clothes drying. Better.

Next, the operation S07 for determining whether or not the clothing C _{min that} is the slowest to dry has reached the limit drying rate r _lim will be described with reference to FIG. The critical drying rate is a drying rate that is a boundary between the constant rate drying period and the decreasing rate drying period. When the clothing reaches the critical drying rate, there is no water film on the surface, resulting in an increase in surface temperature. Therefore, whether or not the clothing C _min has reached the critical drying rate r _lim is regarded as a phenomenon of an increase in surface temperature. Therefore, as shown in FIG. 8A, the controller 17 determines whether or not the difference between the room temperature T _in and the clothing surface temperature T _min is equal to or greater than a predetermined value T _lim (about 1.0 to 1.5 [K]). determines and stores as a time t _lim reaching the limit dry ratio r _lim when the equal to or smaller than the predetermined value T _lim of determining the limit dry rate. Note that the temperature difference between the wet and dry surfaces varies depending on the temperature and humidity of the air. For example, with air of 20 [° C.] and 50 [% RH], the wet surface is about 14 [° C.], and with air of 20 [° C.] and 80 [% RH], the wet surface is about 18 [° C.]. In particular, it varies greatly depending on the relative humidity. However, when the clothes are dried, the interior of the bathroom is relatively humid. Assuming air of 80 [% RH], the temperature difference between the wet surface and the dry surface is about 2 to 3 [K] in the normal room temperature range, and a predetermined value T _lim for judging the critical drying rate is obtained. It can be entered as a constant value.

Next, driest slow clothes C _min is a description of the operation S08 to determine if it has reached the forced heating operation starting time t _fh If it does not reach the limit dry ratio r _lim. The forced heating operation start time t _fh is that if the critical drying rate r _lim is not reached, the clothing C _min can be dried by the target end time t _g unless heating is started when the limit drying rate r _lim is reached. It's time you can't. The forced heating operation start time t _fh is obtained by Equation 1.

t _fh = t _g −n ₁ Formula 1
The coefficient n ₁ is a value set in the controller 17 in advance, and when slowly drying clothes (for example, a bath towel hung on a hanger in four folds) are dried using the ventilation fan 2, the blower fan 6, and the heater 11. In addition, it is experimentally determined as the time required from immediately after dehydration to drying. In other words, if clothes are dried using the ventilation fan 2, the blower fan 6, and the heater 11 for at least n ₁ hours, even slow-drying clothes are dried. The coefficient n ₁ varies depending on the electric capacity of the heater 11 and the amount of air blown by the blower fan 6. For example, when the electric capacity of the heater 11 is 2000 [W] and the air blown amount of the blower fan 6 is 600 [m ³ / h]. It is about 2 to 3 [h].

It will now be described heat drying operation S08a when reaches the forced heating operation starting time t _fh. At this time, the clothing C is dried using the ventilation fan 2, the blower fan 6, and the heater 11 until the target end time _tg is reached. The ventilation fan 2 is fixed with a strong notch, but may be switched from a strong notch to a weak notch according to time. If the target end time t _g is relatively short, or starts heating and drying operation S08a when changing room even if the target completion time t _g is relatively long bad conditions on Drying such a low temperature and high humidity, the target ends Make sure the clothes are dry by time t _g .

Next, the heating and drying operation S08b when the forced heating operation start time t _fh has not been reached will be described. In this case, the clothing C is dried using the ventilation fan 2 and the blower fan 6. Since only as ventilation blowing state the garment C until the target end time t _g it can not determine whether to drying, returns to S06 again After a predetermined time (e.g. 10 minutes) has elapsed. When the slowest-drying clothing C _min does not reach the critical drying rate r _lim and the elapsed time does not reach the forced heating operation start time t _fh , S06, S07, S10, and S10b are repeated every predetermined time. It will be.

Next, driest slow clothes C _min is when it reaches the limit dry ratio r _lim, driest slow clothes C _min drying operation will be described S09 to estimate the time t _f to terminate. FIG. 8B shows a conceptual diagram of the drying rate of clothes drying. As the clothes dries, the drying rate rises from the initial r ₀ and reaches r _lim , but it takes time to reach the end of drying (r _f ) from there. Here, the critical drying rate r _lim is a unique value depending on the type of clothing, and has a characteristic that it does not change depending on the situation during drying. Thus it is possible to infer the driest slow clothing C _min clothes drying end time of t _f from the time t _lim reaching the limit dry ratio r _lim. Specifically, according to Equation 2.

t _f = n ₂ t _lim equation 2
The coefficient n ₂ is a value preset in the controller 17 and is a value obtained experimentally. However, the value varies depending on the type of clothing. The coefficient n ₂ dries clothes that are slow to dry (for example, bath towels hung on hangers in four folds) in line with the idea of estimating the drying time of the clothes C as a whole in accordance with the slowest clothes C _min. In this case, the value is obtained experimentally (for example, about 1.5 to 2.5). It should be noted that the range of the clothing surface that can be detected by the infrared sensor 14 is limited, and it is fully conceivable that drying of the inside and the bottom of the clothing that cannot be detected is the slowest. For this reason, it is desirable that the coefficient n ₂ is set so that the drying time of the slowest garment C _min can be estimated including the part where the surface temperature cannot be detected.

  According to the above method, it is possible to estimate the time at which the drying of the clothes is completed by using the detection means including only the infrared sensor 14 and the thermometer 15. For this reason, it is possible to realize both reducing the uneven drying of clothes and estimating the drying end time of clothes by adjusting the air blowing direction only with the infrared sensor 14 and the thermometer 15, thereby reducing the cost of the product. It is effective to do.

Next, the operation S10 of drying within a target end time t _g is determined whether or not to end. Comparing a target end time t _g where driest of slow clothing C _min of clothes drying end time t _f of the user stored in the internal controller 17 has set, t _f ≦ t If _g target end time t _g The drying is completed within a predetermined time, and if t _f > t _g , it is determined that the drying is not completed within the target end time t _g .

Next, the operation S10a will be explained in the case of drying within a target end time t _g is not expected to end. In this case, the clothing C is dried using the ventilation fan 2, the blower fan 6, and the heater 11. However, most if dry slow clothes C _min of clothes drying end time t _f of close to the target end time t _g is slower clothing C _min of the driest without using much heater 11 was estimated in S10 Is expected to dry by the target end time t _g . Therefore, the operation time t _h of the heater 11 is determined as shown in Equation 3.

t _h = n ₃ (t _f −t _g ) Equation 3
The coefficient n ₃ is a value set in the controller 17 in advance, and when slowly drying clothes (for example, a bath towel hung on a hanger in four folds) are dried using the ventilation fan 2, the blower fan 6 and the heater 11. In addition, the coefficient represents how many times the clothes can be dried compared to the case where the heater 11 is not used. For example, when the coefficient n ₃ is 1, by using the heater 11, the clothes can be dried at twice as fast as before. The coefficient n ₃ varies depending on the electric capacity of the heater 11, but is set to about 3 to 4 [−] when the electric capacity of the heater 11 is 2000 [W], for example.

When the operation time t _h of the heater 11 is determined, the heater 11 is immediately operated, and the clothes C are dried by ventilation, ventilation, and heating. In addition, when the operation time t _h has elapsed since the start of the operation of the heater 11, the heater 11 is stopped, and after that, the clothing C is dried only by ventilation and ventilation. In either case, ventilation should be a strong notch.

By thus determining the operating time of the heater 11 in accordance with the most dry slow clothes C _min clothes drying end time of t _f is the time to exceed the target end time t _g, the target end time clothing C t _g Can be dried with a minimum amount of heating required. The necessary minimum heating amount here is 0 when the slowest-drying clothing C _min dries before the target end time t _g without heating, and the target end time without heating. If no driest slow clothes C _min is drying out until t _g is that the amount of heating required to slow the garment C _min the most dried to a target end time t _g dries.

  Moreover, since warm air remains in the bathroom for a while after the operation of the heater 11 is finished, an effect of promoting drying of the clothing C by using residual heat can be expected.

Next, the operation S10b will be described when dry within a target end time t _g was expected end. In this case, the clothing C is dried only by ventilation and ventilation. Use a strong notch for ventilation.

The operations S08a, S08b, S10a, and S10b for drying the clothing C have been described above. In any case, the controller 17 uses the infrared sensor 14 to change the surface temperature of the clothing C every predetermined time (for example, 10 minutes). The angle of the motor 10b (that is, the angle of the louver 10) is adjusted so that the air is detected and the air is blown in the direction in which the slowest dry clothing _Cmin is present. The slowest-drying clothing C _min may be a fixed clothing or a different clothing every time it is detected. However, it is always possible to reduce drying unevenness of the entire garment C by intensively blowing air toward the slowest drying garment C _min to accelerate drying, and as a result, drying of the entire garment C is required. Time is shortened. Here, intensive means that the air is not blown in directions other than the slowest dry clothing _Cmin . Moreover, if the time required for drying is shortened, naturally the energy consumption and running cost can be reduced accordingly.

Note that other methods of adjustment of the wind direction is blown toward the late garment C _min the most dried as described above, by swinging the louver 10, only to the extent that there is clothing does not reach the limit dry ratio r _lim There is also a method of blowing air toward. The air blowing range is the whole range, and it will be squeezed into clothes that are not dry as time passes. In this case, if clothing that has already reached the critical drying rate r _lim is sandwiched by clothing that does not, the air that has already reached the critical drying rate r _lim will also be blown, and the efficiency will be slightly worse. The effect that the air of the whole bathroom becomes easy to move without staying by the swing of the louver 10 is also considered.

After all of the garment C reaches the limit dry ratio r _lim is such blows air toward the limit dry ratio r _lim is reached for the late was clothing garment or hanging in thick material zone Pa,.

Next, the operation S11 for ending the operation when the target end time _tg is reached will be described. If the operation of drying clothes C is S08a and S10a, temporarily stopping the heater 11 when it becomes the target completion time t _g, the blower fan 6 after a predetermined time (e.g. 15 minutes) it is also stopped. The reason why the blower fan 6 is operated longer than that of the heater 11 is to cool the heat of the portion that the hot air of the heater 11 was hit. When there is a large temperature difference inside the bathroom, there is a problem in the subsequent monitoring operation S12. The operation of drying the clothes C if a S10b, stopping the blower fan 6 when it becomes the target completion time t _g. In either case, the ventilation fan 2 does not stop and operates with a weak notch. This is to prevent moisture in the bathroom from becoming too high if the clothes are not dry, and the dry clothes will absorb moisture again.

Next, the operation S12 for monitoring whether the clothes are dried will be described. Originally, the clothing C should be dry at the target end time _tg , but the drying of the clothing C may not be finished. For such a case, the garment to see if dried with infrared sensor 14 after the target end time t _g. If there is a part whose temperature is lower than the surroundings above a predetermined value (for example, 1.0 [K]), the air blowing fan 6 is operated for a predetermined time (for example, 10 minutes) to blow air in that direction. At the same time, the heater 11 is operated. By doing so, if there is a garment that is not dry even after the target end time t _g, it is possible to facilitate its drying.

  Finally, the case where the heating mode is selected will be described. The heating mode is operated in an unattended state before bathing, and is a mode for heating the bathroom. In this case, the controller 17 operates the heater 11 and the blower fan 6 and swings the louver 10 left and right so that warm air is sent over a wide range. The controller 17 detects the temperature of the bathroom wall and floor every predetermined time (for example, 5 minutes) by the infrared sensor 14 after the operation is started, and the louver 10 and the lid 12 are blown toward a relatively low temperature part. Adjust the angle. In this way, the entire bathroom can be warmed up evenly. The heating mode is stopped when the user presses the start button 13b again.

(Embodiment 2)
A bathroom clothes dryer 21 according to Embodiment 2 of the present invention will be described with reference to FIG. The bathroom clothes dryer 21 is different from the bathroom clothes dryer 1 in that the bathroom has an operation unit 22 as an operation unit in the bathroom and the infrared sensor 14 is attached to the operation unit 22. Since other parts and main control are the same as those in the bathroom clothes dryer 1 according to the first embodiment of the present invention, description thereof will be omitted.

  The operation unit 22 is attached to the bathroom wall as shown in FIG. 9, and the user can operate the bathroom clothes dryer 21 from inside the bathroom. Even if you want to ventilate or blow air after taking a bath, you don't have to bother to go to the dressing room. Moreover, the infrared sensor 14 is rotatably installed in the operation unit 22 (does not move), and the surface temperature of the lower part of the clothing C can be detected from the side. As a rotation mechanism (not shown), the infrared sensor 14 may be fixed to the shaft of a motor installed so as to be rotatable in the horizontal direction. The infrared sensor 14 is provided with a dedicated lid (not shown) so that moisture and water droplets during bathing do not come into contact with the detection unit.

  This method can more reliably detect the surface temperature of the part where the wind is hard to hit than the case of detecting from the ceiling as in the case of the bathroom clothes dryer 1, and the detection accuracy is improved.

  As described above, the bathroom clothes dryer of the present invention is for drying the clothes in a suspended state evenly and with a minimum heating amount by the target drying time. It can also be applied to sunrooms and the like.

Sectional drawing of the clothes dryer 1 for bathrooms of Embodiment 1 of this invention Sectional view showing the operating mechanism of the louver 10 ((a) sectional view showing an initial state of the operating mechanism of the louver 10, (b) sectional view showing a state where the louver 10 of the operating mechanism of the louver 10 is tilted) Arrangement of the operation unit 13 Cross section of the infrared sensor 14 The figure which shows the structure of the movement / rotation mechanism 16 ((a) The block diagram which shows the initial state of the movement / rotation mechanism 16, (b) The movement / rotation mechanism 16 of the state which the infrared sensor 14 moved to the end. Configuration diagram, (c) Configuration diagram showing the movement / rotation mechanism 16 and the bag P in a state where the infrared sensor 14 is rotated) The figure which shows the positional relationship of the clothes dryer 1, the bag P, and the clothing C for the bathroom ((a) Vertical sectional view of the bathroom, (b) Horizontal sectional view of the bathroom) Flow diagram showing control of clothing drying mode Conceptual diagram of limit drying rate and drying rate ((a) Conceptual diagram showing time t _lim reaching the same limit drying rate, (b) Conceptual diagram of drying rate of clothes drying) Sectional view of bathroom clothes dryer bathroom of Embodiment 2 of the present invention ((a) Vertical sectional view of bathroom clothes dryer bathroom, (b) Horizontal sectional view of the bathroom) Flow diagram showing the control of the prior art bathroom ventilation dryer 101

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom clothes dryer 2 Ventilation fan 4 Suction port 6 Blower fan 9 Air outlet 10 Louver 11 Heater 12 Lid 13 Operation part 14 Infrared sensor 15 Thermometer 16 Movement / rotation mechanism 17 Controller 21 Bathroom clothes dryer 22 Operation part P竿 C Clothing t _g Target end time T _min Minimum clothing temperature T _{in Room} temperature T _lim Predetermined value for determining the critical drying rate t _fh Forced heating start time t _f Clothing drying end time t _Lim critical drying rate reached Time r _lim limit drying rate

Claims (18)

An operation unit for instructing a target end time until the user finishes drying of clothes and an operation start, ventilation means for discharging air inside the bathroom, and clothes hung on a basket installed in the bathroom A ventilation means for sending air to the garment, a heating means for applying heat to the clothing, a radiation temperature sensing means for sensing the surface temperature of the clothing, the ventilation means and the signals received by the operation unit and the radiation temperature sensing means A bathroom garment comprising control means for controlling the air blowing means and the heating means, wherein the control means controls the operation of the heating means according to the surface temperature of the clothing detected by the radiation temperature detecting means and the target end time. Dryer. The radiation temperature detection means includes a wind direction varying means for detecting the surface temperature of a plurality of points and changing the wind direction of the air blown from the blower means. The wind direction varying means is controlled by the control means, and the plurality of detections detected by the radiation temperature detection means 2. The bathroom clothes drying according to claim 1, wherein the control means determines the direction in which the wet part of the clothes is present from the surface temperature of the point and blows air in the direction in which the wet part of the clothes is present using the wind direction changing means. Machine. The bathroom clothes dryer according to claim 2, wherein a wet part of the clothes is detected using a radiation temperature detecting means, and the air is blown only to a range where the wet part of the clothes exists. The bathroom clothes dryer according to claim 2, wherein a radiant temperature detecting means is used to detect the slowest drying part of the garment and the air is blown toward the slowest drying part of the garment. The radiation temperature detecting means detects a plurality of surface temperatures, the control means determines a minimum temperature from the plurality of surface temperatures, and the control means determines the heating means according to the minimum temperature and the target end time. The clothes dryer for bathrooms in any one of Claims 1-4 which control operation | movement of. The clothes dryer for bathrooms according to any one of claims 2 to 5, further comprising a rotating means for changing a detection direction of the radiation temperature detecting means. The bathroom clothes dryer according to any one of claims 2 to 6, further comprising moving means for moving the radiation temperature detecting means in a direction parallel to the basket. For clothes hung within a predetermined range of the heel, the surface temperature is detected by moving the radiation temperature detecting means in a direction parallel to the heel using the moving means, and the clothes are hung outside the predetermined range of the heel. The clothes dryer for bathrooms according to claim 2, wherein the surface temperature is detected by rotating the radiation temperature detecting means using a rotating means. The bathroom clothes dryer according to any one of claims 1 to 8, wherein the heating means is operated only when the control means determines that the heating means should be used to dry the clothes by the target end time. Room temperature detecting means for measuring the temperature is provided inside the air inlet of the air blowing means or the ventilation means, and the drying state of the clothes is estimated from the temperature difference between the temperature detected by the room temperature detecting means and the lowest temperature detected by the radiation temperature detecting means. The bathroom clothes dryer according to claim 9. When the temperature difference between the temperature detected by the room temperature detection means and the minimum temperature detected by the radiation temperature detection means falls below a predetermined value, the control means determines that the clothing has reached the critical drying rate, and the clothing is dried. The clothes dryer for bathrooms according to claim 9 or 10, wherein the required time is estimated from the actual required time until the critical drying rate is reached. The bathroom according to any one of claims 9 to 11, wherein when the time required for the clothes to dry without using the heating means exceeds the target end time, the heating means is operated according to the excess time. For clothes dryer. The bathroom according to any one of claims 9 to 12, wherein if the clothing does not reach a critical drying rate even if the remaining time until reaching the target end time reaches a predetermined time, the clothing is dried using heating means thereafter. For clothes dryer. The bathroom clothes dryer according to any one of claims 9 to 12, wherein when the target end time is reached, the heating means is stopped, and then the clothes are dried again using the heating means if the clothes are not yet dried. The detection part of a radiation temperature detection means was equipped with the cover, and when the clothes dryer for bathrooms was not driving | operating, the said cover was closed and the air inside a bathroom did not contact the said detection part. A clothes dryer for bathrooms as described in 1. A detection part of the radiation temperature detection means is provided adjacent to the blowout port of the blower means, and the blowout port of the blower means is provided with a lid that can be used as a current plate.When the lid is closed, the air inside the bathroom is The bathroom clothes dryer according to claim 15, wherein the clothes dryer does not come into contact with the detection part of the radiation temperature detection means. The bathroom clothes dryer according to any one of claims 2 to 16, wherein a button capable of selecting an operation mode is provided on the operation unit, and when the heating mode is selected, air is blown toward a portion where the temperature inside the bathroom is low. 18. A bathroom garment according to any one of claims 1 to 17, wherein the main body is installed behind the ceiling of the bathroom, the bathroom inner wall is provided with a bathroom operation section, and radiation temperature detection means is mounted at least in the bathroom operation section. Dryer.

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