JP4779731B2 - Clothes dryer - Google Patents

Description

  The present invention relates to a clothes dryer used in a general household and a clothes dryer installed in a clothes dryer that performs only drying.

  Conventionally, as this type of clothes drying apparatus, there are one using a heater as a heat source and one using a heat pump apparatus as a heat source (see, for example, Patent Document 1).

  Hereinafter, a washing / drying machine equipped with the conventional clothes drying apparatus disclosed in Patent Document 1 will be described with reference to FIG. FIG. 4 is a side sectional view of the conventional washing and drying machine described in Patent Document 1. As shown in FIG.

  In FIG. 4, the washing / drying machine 1 has a casing 2, a door 12 for attaching and removing clothes 6 is attached to the center of the casing 2, and a rotating drum 3 is accommodated therein. In a predetermined part of the rotating drum 3, a beater 5 for lifting and dropping the clothes 6 with the rotation of the rotating drum 3 and a number of punching holes 4 through which washing water 7 and circulating air 9 for drying are opened and closed are opened. is there. The shaft 11 of the rotating drum 3 receives power for rotation from a driving motor (not shown).

Further, the rear surface of the rotating drum 3 in the casing 2 is partitioned by a partition wall 22 except for the air inlet 24 and the air outlet 23, and ducts 10 and 13 through which the circulating air 9 passes are formed. The lower part of the front surface of the partition wall 22 constitutes a washing tub 14, and the lower part of the rotating drum 3 faces the portion of the washing tub 14. Each of the air ducts 10 and 13 includes a compressor 19, a condenser (condenser) 18, a fan 17, an expansion valve 20, an evaporator (evaporator) 15 and the like, and a so-called heat pump cycle is formed. A part of the condenser 18 is extended to the outer back surface of the casing 2 to form a radiator 16. 21 is a drain drain pipe for draining the dew condensation water generated in the evaporator 15, and 8 is a laundry drain pipe for draining the washing water.

  Next, each process and operation of the conventional washing / drying machine will be described. In the washing and rinsing process, the door 12 is opened, the garment 6 and an appropriate amount of detergent are put in, the door 12 is closed, and the following processes are executed. A specified amount of water 7 is supplied to the washing tub 14 up to the position of the water level A by a water supply valve (not shown). The rotating drum 3 rotates continuously or intermittently at the programmed number of rotations to perform cleaning. During this time, the garment 6 is lifted and dropped by the beater 5. After the washing is finished, the dirty washing water is drained out of the machine from the washing drain pipe 8 of the washing tub 14. Subsequently, the rinsing process is performed in the same process. Rinsing water is also drained out of the machine from the washing drain pipe 8 as washing drain.

  In the dehydration step, the rotating drum 3 rotates at a programmed number of rotations to dehydrate moisture in the clothing 6. The dewatered water is also drained out of the machine from the laundry drainage pipe 8 as laundry drainage. In the drying process, the compressor 19, the fan 17, and the rotating drum 3 are operated, and the circulating air 9 circulates inside the ducts 10, 13 and the rotating drum 3.

The water vapor evaporated from the clothing 6 is brought into contact with the evaporator 15 through the air outlet 23 and the duct 10 together with the circulating air 9, and is cooled and dehumidified as condensed water (condensed water). The dehumidified circulating air 9 is sent to the condenser 18 by the fan 17, heated there to become hot air, flows into the rotary drum 3 through the duct 13 and the air inlet 24, and evaporates moisture from the clothing 6 again. Let The condensed water dehumidified by the evaporator 15 is drained out of the apparatus through a drain drain pipe 21. During this time, the rotating drum 3 rotates continuously or intermittently at a preset number of rotations as in the washing process. In the above, the process which performs continuously from washing to drying was explained.
Japanese Examined Patent Publication No. 6-75628

  However, in the configuration of the conventional clothes drying apparatus, there is not particularly provided a detection means when the refrigerant sealed in the heat pump cycle leaks to the outside, and when the refrigerant leaks, the pressure of the entire refrigerant circuit is increased. As a result of a decrease or a shortage of the refrigerant circulation amount, the capability is reduced, and an excessive load is applied to the compressor 19 to shorten the life of the device, and the lubricant for the motor in the compressor 19 together with the refrigerant Leaks and damages the compressor 19.

  The present invention solves the above-described conventional problems, and an object of the present invention is to provide a clothes drying apparatus that can reliably detect leakage of a refrigerant and protect a compressor.

In order to solve the above-described conventional problems, the clothes drying apparatus of the present invention is reduced in pressure by a compressor, a radiator that radiates heat of the compressed refrigerant, a throttle means that reduces the pressure of the high-pressure refrigerant, and the pressure is reduced. A heat pump device connected by a pipe line so that the refrigerant circulates, and a heat absorber that takes heat away from the surroundings with the refrigerant, a drying cabinet for storing clothing, and a compression for detecting the current value flowing into the compressor Machine inflow current detection means, air blowing means for blowing drying air, a circulation air passage for leading the drying air to the heat absorber through the radiator and the drying cabinet, and returning the heat to the radiator again, and the radiator A first temperature detecting means for directly detecting the temperature of the drying air heated in step, a second temperature detecting means for detecting the temperature of the conduit, and a control means for controlling the compressor. The means includes a current value flowing into the compressor and the first value. A plurality store the relationship between the temperature sensing means sensed temperature and the second temperature detection means detected temperature, when the current value flowing into the compressor is greater than or equal to a predetermined current value, the first temperature detected by the temperature detecting means is below a first predetermined temperature, the temperature detected by said second temperature detecting means is equal to or higher than the second predetermined temperature, stop the compressor since also detects that the refrigerant leaks from a current value flowing into the drying air temperature or that of the temperature of the temperature and the flow path of a correlation refrigerant to the compressor by stopping the compressor by a control unit, Even when the refrigerant leaks, it is possible to realize a clothes drying apparatus that can protect the compressor.

  The clothes drying apparatus of the present invention can reliably protect the compressor even when the refrigerant leaks.

According to a first aspect of the present invention, there is provided a compressor, a radiator that radiates heat of the compressed refrigerant, a throttle means that depressurizes the pressure of the high-pressure refrigerant, and a heat absorber that draws heat from the surroundings by the reduced-pressure refrigerant. A heat pump device configured to be connected by a pipe line so that the refrigerant circulates, a drying chamber for storing clothes, a compressor inflow current detecting means for detecting a current value flowing into the compressor, and blowing air for drying Direct air flow means, a circulation air passage that guides the drying air to the heat absorber via the radiator and the drying cabinet, and returns the heat to the radiator again, and directly detects the temperature of the drying air heated by the radiator First temperature detecting means, second temperature detecting means for detecting the temperature of the pipe line, and control means for controlling the compressor, wherein the control means includes a current value flowing into the compressor, The temperature detected by the first temperature detecting means and the second temperature The relationship between temperature and detected by the temperature detection means stores a plurality, when the current value flowing into the compressor is greater than or equal to a predetermined current value, the temperature detected by the first temperature detecting means first predetermined be in the following temperature, the temperature detected by said second temperature detecting means is equal to or higher than the second predetermined temperature, the it is than also to Suspend compressor, a temperature or a correlation of the drying air When it is detected that the refrigerant has leaked from the temperature of the refrigerant, the temperature of the pipe line, and the current value flowing into the compressor, the compressor is stopped by the control means, so that the compressor can be protected even if the refrigerant leaks. A clothes drying device that can be used can be realized.

  According to a second aspect of the present invention, in particular, in the clothes drying apparatus according to the first aspect of the present invention, the current value flowing into the compressor is less than or equal to a predetermined value when a predetermined time or more has elapsed since the operation of the clothes drying apparatus. And when the temperature detected by the first temperature detecting means is equal to or lower than the first predetermined temperature and the temperature detected by the second temperature detecting means is equal to or higher than the second predetermined temperature, the compressor The refrigerant is determined from the temperature of the drying air or the temperature of the refrigerant correlated therewith, the temperature of the pipe line, and the value of the current flowing into the compressor after the garment drying apparatus has started to operate. When it is detected that the refrigerant has leaked, the compressor is stopped by the control means, so that it is possible to detect refrigerant leakage with high accuracy and little influence from clothing and atmosphere conditions, and to protect the compressor even when refrigerant leaks. Clothes drying equipment It can be current.

According to a third aspect of the present invention, in particular, the control means of the clothes drying apparatus according to the second aspect of the present invention is such that the current value flowing into the compressor is not more than a predetermined value and the temperature detected by the first temperature detecting means is the first. The compressor is stopped when the temperature detected by the second temperature detecting means is equal to or higher than the second predetermined temperature for a predetermined time or longer. When it is detected that the refrigerant has leaked because the temperature of the refrigerant or the temperature of the refrigerant correlated therewith, the temperature of the pipe line, and the value of the current flowing into the compressor satisfy a predetermined condition for a predetermined time, the control means By stopping the compressor in accordance with the above, it is possible to realize a clothes drying apparatus that can accurately detect a refrigerant leak with little influence by the state of clothes and atmosphere and can protect the compressor even when the refrigerant leaks. it can.

According to a fourth aspect of the invention, in particular, the clothes drying apparatus of the first aspect of the invention includes a rotational speed detection means for detecting the rotational speed of the blower means, and the control means is configured such that when the blower means has a predetermined rotational speed or more, The value of the current flowing into the compressor is not more than a predetermined value, the temperature detected by the first temperature detecting means is not more than the first predetermined temperature, and the temperature detected by the second temperature detecting means is When the temperature exceeds the second predetermined temperature, the compressor is stopped, and the rotational speed of the blower and the temperature of the drying air or the temperature of the refrigerant correlated therewith, the temperature of the pipe line, and the current flowing into the compressor When it is detected from the value that the refrigerant has leaked, the compressor is stopped by the control means, thereby realizing a clothes drying apparatus that can protect the compressor even when the refrigerant leaks.

  According to a fifth aspect of the present invention, in particular, the clothes drying apparatus of the fourth aspect of the present invention comprises a time measuring means for measuring time, and the control means is operated after a predetermined time has elapsed since the clothes drying apparatus started to operate. The means is at a predetermined rotational speed or higher, the current value flowing into the compressor is not higher than a predetermined value, and the temperature detected by the first temperature detecting means is not higher than the first predetermined temperature, and the second When the temperature detected by the temperature detecting means becomes equal to or higher than a second predetermined temperature, the compressor is stopped, and the rotational speed of the blower means is determined after a lapse of a predetermined time after the clothing drying apparatus starts operating. When it is detected that the refrigerant has leaked from the amount of current flowing into the compressor and the temperature of the drying air or the temperature of the refrigerant and the temperature of the pipe line correlated with each other, the compressor is stopped by the control means, thereby Accurate refrigerant leakage with little influence from the state of It is detected, it is possible to realize a clothes drying apparatus capable of protecting the compressor even if refrigerant leaks.

According to a sixth aspect of the present invention, in particular, the control means of the clothes drying apparatus according to the fifth aspect of the invention is characterized in that the blowing means is equal to or higher than a predetermined rotational speed, and the current value flowing into the compressor is equal to or lower than a predetermined value When the temperature detected by the temperature detecting means is equal to or lower than the first predetermined temperature and the temperature detected by the second temperature detecting means is equal to or higher than the second predetermined temperature for a predetermined time or longer, The compressor is stopped, and the number of rotations of the blowing means, the amount of current flowing into the compressor, the temperature of the drying air, or the temperature of the refrigerant and the temperature of the pipe line correlated therewith satisfy a predetermined condition. When it is detected that the refrigerant has leaked for a predetermined period of time, the compressor is stopped by the control means, so that the refrigerant leak can be accurately detected with little influence from clothing and atmosphere conditions, and the refrigerant has leaked. Protect the compressor even when It is possible to realize a clothes drying apparatus capable of.

According to a seventh aspect of the invention, in particular, the clothing drying apparatus according to any one of the first to sixth aspects is characterized in that the temperature of the drying air after passing through the radiator in the circulation air passage is the first temperature detection means. Since the temperature of the drying air can be directly detected by the detection, the accuracy of refrigerant leak detection is improved.

In the eighth aspect of the invention, in particular, the second temperature detecting means of the clothing drying apparatus according to any one of the first to seventh aspects is provided on a pipe line between the compressor and the inlet of the radiator, By detecting the temperature of the refrigerant, it is possible to correctly detect the refrigerant leakage.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the present embodiment.

(Embodiment 1)
FIG. 1 is a perspective view of a washing / drying machine equipped with a clothes drying apparatus according to a first embodiment of the present invention as seen from the back, and FIG. 2 is a side sectional view of the washing / drying machine.

  In FIG. 1, a washing tub 26 is provided in a washing / drying machine main body 25 (hereinafter referred to as “main body 25”) of the washing / drying machine according to the present embodiment, and a motor 27 is attached. The washing tub 26 is attached to the main body 25 by being supported by suspensions 29 on both sides and an upper suspension 30.

The main body 25 includes a compressor 35 that compresses the vaporized refrigerant, a radiator 36 that radiates heat of the compressed high-temperature and high-pressure refrigerant, an expansion valve for reducing the pressure of the high-pressure refrigerant, or a capillary tube. And a heat pump device constructed by connecting a throttling means 37 and a heat absorber 38, in which the reduced pressure and low pressure refrigerant removes heat from the surroundings, and connecting them by a conduit 39 so that the refrigerant circulates again to the compressor 35. 51.

  The air passage 40 is configured to communicate the heat absorber 38 as a dehumidifying means for cooling the drying air and the radiator 36 as a heating means for heating the drying air. The washing tub 26 and the air passage 40 are connected by flexible hoses 41 and 42. The air passage 40 is provided with air blowing means 43. A duct 44 that communicates the inside of the washing tub 26 and the flexible hose 41 is provided on the outer wall of the washing tub 26. As described above, a circulation air passage 53 through which dry air circulates is formed by the flexible hose 42, the washing tub 26 that houses the rotating drum 28 described later, the duct 44, the flexible hose 41, and the air passage 40. Yes. An arrow B indicates the flow of drying air in the duct 44 and the air passage 40.

  In FIG. 2, a rotating drum 28 serving as a drying cabinet for storing clothes 31 is directly connected to a shaft 27 a of a motor 27 and is rotatably mounted in the washing tub 26. A door 32 for loading clothes 31 is provided at a position corresponding to the front opening of the washing tub 26 and the rotary drum 28. A gap between the main body 25 and the washing tub 26 is substantially sealed by a bellows 33 and a door packing 34 so that air does not leak into the main body 25 or outside the machine. A plurality of holes 45 and openings 46 through which washing water and drying air enter and exit are provided on the side wall and bottom of the rotating drum 28. The opening 56 is provided on the inner wall of the washing tub 26 and communicates the air path between the washing tub 26 and the duct 44. An arrow C indicates the flow of drying air in the washing tub 26 and the rotary drum 28.

  The washing drainage channel 47 is a channel for draining wastewater during washing. Condensed water generated in the heat absorber 38 during drying is received in a water reservoir 67. One end of a condensation drainage channel 48 having a pump 68 is connected to the bottom 69 of the water reservoir 67, and the other end of the condensation drainage channel 48 and the washing drainage channel 47 are connected to one drainage pipe 49.

  The tip 50 of the drain pipe 49 is open to the atmosphere outside the machine. One drainage valve 60 is provided at the junction of the washing drainage channel 47 and the condensation drainage channel 48, and the drainage treatment means is constituted by the washing drainage channel 47, the condensation drainage channel 48, the drainage pipe 49, and the drainage valve 60. ing.

  The air temperature detection means 71 is provided in the air path 40 and detects the temperature of the drying air. The refrigerant temperature detection means 72 is provided close to the pipe line 39 between the compressor 35 and the inlet of the radiator 36, and detects the temperature of the refrigerant. The compressor inflow current detecting means 73 detects a current value flowing into the compressor 35. The control means 74 controls the operation of the compressor 35. The time measuring means 75 measures time.

  The operation and action of the washing / drying machine configured as described above will be described below. In the washing process from washing, rinsing and dewatering, when water is stored, the drainage valve 60 closes the washing drainage channel 47 side and opens the condensation drainage channel 48 side, and then the water supply valve (not shown) opens the washing tub. Water is supplied to 26, and water is accumulated up to the position of the water level D in FIG.

  The rotating drum 28 rotates continuously or intermittently at a programmed number of rotations, and cleaning and rinsing are performed. During this time, the clothes 31 are lifted and dropped by the rotation of the rotary drum 28. When draining, the drainage valve 60 opens the washing drainage channel 47 side, the condensation drainage channel 48 side is closed, and the water in the washing tub 14 passes through the washing drainage channel 47 and the drainage valve 60 from the drainage pipe 49. Drained outside.

  In the drying step, the drainage valve 60 closes the washing drainage channel 47 side, the condensation drainage channel 48 side is opened, and the motor 27 that drives the compressor 35, the blowing means 43, and the rotary drum 28 is operated. By the operation of the blowing means 43, the drying air circulates through the inside of the washing tub 26, the duct 44, the flexible hose 41, the air path 40, and the flexible hose 42. The clothing 31 is agitated by a rotating drum 28 that rotates continuously or intermittently at a preset number of rotations.

  By the operation of the compressor 35, the refrigerant circulates in the pipe 39, and the heat of the high-temperature and high-pressure refrigerant is radiated by the radiator 36 to heat the circulating drying air. The heated drying air is sent into the washing tub 26 as shown by an arrow C in FIG. 2, passes through the opening 46 provided in the bottom surface of the rotating drum 28, hits the clothing 31, and removes moisture from the clothing 31 The air is then taken as humid air, passes through a large number of holes 45 provided in the side wall of the rotary drum 28, and is sent to the duct 44 through the opening 56 of the washing tub 26. The drying air that has passed through the duct 44 passes through the flexible hose 41 and is dehumidified by a heat absorber 38 as a dehumidifying means provided in the air passage 40 as indicated by an arrow B. The dehumidified drying air is sent again to the radiator 36 by the blowing means 43 and heated.

  Here, when the refrigerant leaks from the heat pump device 51 for some reason, the heat exchange capacity decreases due to the decrease in the refrigerant amount. For this reason, even if the inflow current to the compressor 35 detected by the compressor inflow current detection means 73 is about the same as that at the normal time, the temperature of the drying air detected by the air temperature detection means 71 is higher than that at the normal time. It will be low. At this time, the temperature of the refrigerant detected by the refrigerant temperature detecting means 72 is heated to the same level as normal by frictional heat generated by the rotation of the compressor 35. Thereby, the leakage of the refrigerant can be detected by detecting the value of the current flowing into the compressor 35, the temperature of the drying air, and the temperature of the refrigerant.

  Specifically, the control means 74 controls the relationship between the value Td of the drying air and the value Tr of the refrigerant when the compressor 35 is operated with the current value In when the standard refrigerant amount is sealed. The temperature of the drying air detected by the air temperature detecting means 71 when the current value is greater than or equal to In during operation of the compressor 35 is a temperature that is lower by a predetermined amount ΔTd than Td. The temperature of the refrigerant detected by the refrigerant temperature detecting means 72 is lower than the second predetermined temperature Tth2 set to a temperature lower than the Tr by a predetermined amount ΔTr. If it becomes, it will be judged that it is a refrigerant | coolant leak, and the compressor 35 will be stopped by the control means 74. FIG. Thus, by detecting that the refrigerant has leaked and stopping the compressor 35, the compressor 35 can be protected even when the refrigerant has leaked.

  As described above, according to the present embodiment, the refrigerant leakage is detected from the values detected by the air temperature detection means 71, the refrigerant temperature detection means 72, and the compressor inflow current detection means 73, and the control means 74 detects the compressor. By stopping 35, it is possible to provide a clothes drying apparatus that can reliably protect the compressor 35 even when the refrigerant leaks.

  In the above embodiment, the air temperature detecting means 71 is installed in the air passage 40 to directly detect the temperature of the drying air. However, the pipe 39 between the inlet and the outlet of the radiator 36 is used. Since there is a correlation between the temperature of the refrigerant passing through and the temperature of the drying air, the same effect can be obtained even if the air temperature detection means 71 is installed on the conduit 39 from the inlet to the outlet of the radiator 36.

  In the above embodiment, it is determined that the refrigerant leaks immediately when a predetermined condition is satisfied. However, the timer leaks the refrigerant leak after a predetermined time has elapsed since the time when the clothing drying apparatus started operating. If it judges, the influence by the state of clothing or atmosphere can be reduced, and a refrigerant | coolant leak can be detected more accurately.

In addition, the timer 75 determines a specific operation of the clothes drying apparatus, for example, a drying start instruction by a drying start instruction means (not shown), activation of the compressor 35, and the like, and a refrigerant leak is determined after a predetermined time has elapsed from the start of the operation. Even if it does, the same effect can be acquired.

  In addition, even if the time keeping means 75 determines that the refrigerant leakage has occurred when the state satisfying the predetermined condition for judging the refrigerant leakage continues for a predetermined time or more, the influence of the state of clothing or atmosphere is reduced. It is possible to detect refrigerant leakage with higher accuracy.

  Moreover, in the said embodiment, although the tube type heat exchanger with a plate fin is shown as a heat exchanger which forms the heat radiator 36 and the heat absorber 38, the form is not specifically limited.

  In the present embodiment, the washing / drying machine has been described as an example, but it goes without saying that the same effect can be obtained even in a clothes drying machine that only dries clothes.

(Embodiment 2)
FIG. 3 is a side sectional view of a washing / drying machine equipped with a clothes drying apparatus according to the second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 3, the present embodiment is provided with a rotation speed detection means 76 for detecting the rotation speed of the blower means 43, and whether the rotation speed of the blower means 43 is equal to or greater than the predetermined rotation speed, The leak is judged. Originally, the air blowing means 43 is controlled to operate at a predetermined rotational speed, and when the standard amount of refrigerant is sealed, the temperature Td of the drying air when the compressor 35 is operated at the current value In. The relationship between the value and the value of the refrigerant temperature Tr is also stored in the control means 74 on the assumption that the blowing means 43 is operated at a predetermined rotational speed.

  For this reason, it is possible to improve the reliability of the determination by determining the refrigerant leakage only when the rotation speed of the air blowing means 43 is equal to or larger than the predetermined rotation speed by the rotation speed detection means 76.

  As described above, according to the present embodiment, the leakage of the refrigerant is detected from the values detected by the rotation speed detection means 76, the air temperature detection means 71, the refrigerant temperature detection means 72, and the compressor inflow current detection means 73, By stopping the compressor 35 by the control means 74, it is possible to realize a clothes drying apparatus that can protect the compressor 35 even when the refrigerant leaks.

  In the present embodiment, it is determined that the refrigerant leaks immediately when a predetermined condition is satisfied. However, as in the first and second embodiments, the time measuring means 75 is used to dry the clothes. The refrigerant leak is judged after a predetermined time has elapsed since the start of operation of the apparatus, or a specific operation of the clothes drying apparatus, for example, a drying start instruction by a drying start instruction means (not shown), starting of the compressor 35, etc. If the refrigerant leak is determined after a predetermined time has elapsed from the start of the operation, or if a condition satisfying a predetermined condition for determining the refrigerant leak continues for a predetermined time or more, it is determined that the refrigerant leaks. The influence of the state of clothing and atmosphere can be reduced, and refrigerant leakage can be detected with higher accuracy.

  In the present embodiment, the washing / drying machine is described as an example, but the same effect can be obtained in a clothes drying machine that performs only drying.

As described above, the clothes drying apparatus according to the present invention can reliably detect the leakage of the refrigerant and protect the compressor, and performs washing and drying used in a general household in the same tank. It can be widely applied to washing machines with a drying function and clothes dryers that only dry.

The perspective view which looked at the washing-drying machine carrying the clothing drying apparatus in the 1st Embodiment of this invention from the back Side sectional view of the washer / dryer Side sectional view of a washing and drying machine equipped with a clothes drying apparatus according to a second embodiment of the present invention Side sectional view of a washing dryer equipped with a conventional clothes dryer

26 Laundry tub 28 Rotating drum (dryer)
31 Clothing 35 Compressor 36 Radiator 37 Throttle means 38 Heat absorber 39 Pipe line 40 Air path 43 Blower means 51 Heat pump device 53 Circulating air path 71 Air temperature detection means 72 Refrigerant temperature detection means 73 Compressor inflow current detection means 74 Control means 75 Timekeeping means 76 Rotational speed detection means

Claims (8)

The refrigerant circulates between the compressor and the radiator that radiates the heat of the compressed refrigerant, the throttle means that depressurizes the pressure of the high-pressure refrigerant, and the heat absorber that draws heat from the surroundings with the reduced-pressure and low-pressure refrigerant. A heat pump device connected by a pipe, a drying cabinet for storing clothes, a compressor inflow current detecting means for detecting a current value flowing into the compressor, a blowing means for blowing drying air, A circulation air path for leading the drying air to the heat absorber via the radiator and the drying cabinet and returning it to the radiator again, and a first temperature detection for directly detecting the temperature of the drying air heated by the radiator Means, a second temperature detecting means for detecting the temperature of the pipe line, and a control means for controlling the compressor, wherein the control means comprises a current value flowing into the compressor and the first temperature detection. Detected by the means and the second temperature detecting means The relationship between the sensed temperature and a plurality stored, wherein when a current value flowing to the compressor is equal to or greater than a predetermined current value, the temperature sensed by the first temperature sensing means below a first predetermined temperature becomes, the temperature sensed by the second temperature detecting means becomes equal to or larger than a second predetermined temperature, clothing drying device that stops the compressor. A time measuring means for measuring the time, and the control means is configured such that when a predetermined time or more has passed since the clothing drying apparatus started operation, a current value flowing into the compressor becomes a predetermined value or less, and The compressor is stopped when the temperature detected by the first temperature detecting means is equal to or lower than the first predetermined temperature and the temperature detected by the second temperature detecting means is equal to or higher than the second predetermined temperature. Item 1. A clothing drying apparatus according to Item 1. The control means is such that the current value flowing into the compressor is not more than a predetermined value, the temperature detected by the first temperature detecting means is not more than the first predetermined temperature, and is detected by the second temperature detecting means. The clothes drying apparatus according to claim 2, wherein the compressor is stopped when the state where the applied temperature is equal to or higher than the second predetermined temperature continues for a predetermined time or longer. A rotation speed detection means for detecting the rotation speed of the blower means is provided, and the control means is configured such that when the blower means is equal to or higher than a predetermined rotation speed, a current value flowing into the compressor is equal to or lower than a predetermined value and the first The compressor is stopped when the temperature detected by the temperature detecting means is equal to or lower than a first predetermined temperature and the temperature detected by the second temperature detecting means is equal to or higher than a second predetermined temperature. The clothing drying apparatus according to 1. A time measuring means for measuring time, and the control means is a current value that has passed a predetermined time or more after the clothing drying apparatus has started to operate, the air blowing means has a predetermined rotation speed or more, and flows into the compressor. Is not more than a predetermined value, the temperature detected by the first temperature detecting means is not more than the first predetermined temperature, and the temperature detected by the second temperature detecting means is not less than the second predetermined temperature. The clothes drying apparatus according to claim 4, wherein the compressor is stopped. The control means is configured such that the air blowing means is equal to or higher than a predetermined rotational speed, the current value flowing into the compressor is equal to or lower than a predetermined value, and the temperature detected by the first temperature detecting means is equal to or lower than the first predetermined temperature. 6. The clothes drying apparatus according to claim 5, wherein the compressor is stopped when a state in which the temperature detected by the second temperature detecting means is equal to or higher than a second predetermined temperature continues for a predetermined time or longer. The clothing drying apparatus according to any one of claims 1 to 6, wherein the first temperature detection means detects the temperature of the drying air after passing through the radiator in the circulation air passage. The clothes drying apparatus according to any one of claims 1 to 7 , wherein the second temperature detecting means is provided on a pipe line between the compressor and the inlet of the radiator.