JP2013135791A - Clothing drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely remove lint from a drying filter device.SOLUTION: The clothing drying machine includes: a circulation air passage 24 for introducing drying air into a rotary tub 4; air blowing means 26 for blowing air to the circulation air passage 24; dehumidification means 35 for dehumidifying the drying air coming out of the rotary tub 4; heating means 33 for heating the drying air dehumidified by the dehumidification means 35; a drying filter device 25 for capturing lint included in the drying air; pressure detection means 20 for detecting pressure in the rotary tub 4; and control means 30 for controlling washing and drying operations. The circulation air passage 24 includes an intake port 28 for taking in outside air, an exhaust port 29 for exhausting a part of the drying air flowing in the circulation air passage 24 from the circulation air passage 24 and an intake valve 28a for controlling taking-in of outside air into the intake port 28. The drying filter device 25 includes lint removal means 37 for removing the captured lint from the filter device. The control means 30 opens the intake valve 28a when internal pressure of a water tub exceeds a prescribed variation width and drives the lint removal means 37.

Description

  The present invention relates to a clothes dryer for drying clothes and the like.

  Conventionally, this type of clothes dryer is capable of washing laundry such as clothes in a rotating tub, supplying hot air into the rotating tub when washing is completed, and drying the washed laundry continuously. The air path for circulating the warm air for drying is configured.

  A drying filter device is provided in the air passage to prevent lint from the clothing from reattaching to the clothing during drying. During the drying process, lint gradually accumulates on the drying filter and causes clogging, resulting in a decrease in circulating air volume and a decrease in drying performance. Therefore, the clogging is detected by the air pressure detecting means for detecting the air pressure in the water tank that is a part of the air passage during drying, and the clogging state is notified. (For example, refer to Patent Document 1).

  FIG. 7 shows a conventional washing and drying machine described in Patent Document 1. In FIG. In FIG. 7, a water tank 52 is elastically supported in a casing 51, and a cylindrical rotating tank 53 is rotatably provided in the water tank 52. The rotating tank 53 is rotationally driven by a motor 54 attached to the outside of the rear surface of the water tank 52. A large number of holes 55 are provided in the peripheral side surface of the rotating tub 53 to communicate with the water tank 52. The rotating tub 53 functions as a laundry room during washing and functions as a drying room during drying.

  Blowing means 62 is disposed in the lower part of the casing 51, and drying air is blown into the rotary tank 53 from the blower port 64 provided above the front part of the water tank 52 through the circulation air passage 63 during the drying operation. A heat pump device in which a heat absorber 65 and a heat radiator 66 are disposed in the circulation air passage 63 is provided, and the drying air that has come into contact with the clothes and dampened flows out of the rotating tank 53 and enters the circulation air passage 63. After being dehumidified by cooling with the heat absorber 65, it is heated by the radiator 66 to be circulated to the rotary tank 53 as high-temperature dry drying air.

  During the drying operation, lint generated from clothes or the like is mixed into the drying air and adheres to and accumulates on the air blowing means 62 provided in the circulation air passage 63, thereby reducing its function. A drying filter 67 that captures lint from the drying air is provided, and is disposed on the windward side of the blowing means 62.

  An air trap 68 that communicates with the bottom of the water tank 52 and has a space from the bottom to the back of the water tank 52 is provided at the rearmost part of the water tank 52, and an air tube 69 is connected to the air trap 68. The pressure sensor 70 is connected. When the drying operation is performed in a state where lint is accumulated, the air volume of the drying air passing through the drying filter 67 is decreased, and the air volume flowing out from the water tank 52 to the circulation air path 63 is decreased, while on the lee side of the drying filter 67. Since air is blown into the water tank 52 by the arranged air blowing means 62, the pressure in the water tank 52 rises. When the water tank internal pressure detected by the pressure sensor exceeds a predetermined width, a clogged state is notified.

  However, in the configuration of Patent Document 1, the user needs to remove lint from the dry filter 67. Moreover, since it is necessary to stop a drying process on the way, there existed a problem that the drying time extended and the increase in power consumption occurred.

  Thus, in order to prevent the user from removing lint from the dry filter device and increase in power consumption, it is considered that a lint removing means for automatically removing lint from the dry filter is provided in the dry filter (for example, , See Patent Document 2).

JP 2009-22346 A JP 2008-6044 A

  However, in general, it is desirable to increase the number of times of lint removal unnecessarily because some lint pressed against the filter surface by the lint removal means during air blowing may pass through the dry filter and reattach to clothing. Absent. Therefore, it is necessary to operate the lint removing means after becoming clogged, but in the clogged state, the water tank internal pressure is high, and the accumulated lint is strongly pressed against the drying filter, so it is difficult to remove lint. There are challenges.

  This invention solves the said conventional subject, and it aims at providing the clothes dryer which removes lint automatically and reliably from a drying filter.

  In order to solve the above-described conventional problems, a clothes dryer of the present invention introduces a rotating tub rotatably provided in a housing, a motor that rotationally drives the rotating tub, and air for drying into the rotating tub. A circulating air passage, an air blowing means for blowing air to the circulating air passage, a dehumidifying means for dehumidifying the drying air from the rotating tank, a heating means for heating the drying air dehumidified by the dehumidifying means, and drying A drying filter device that captures lint contained in the working air, a pressure detection unit that detects pressure in the rotating tub, and a control unit that controls washing and drying operations, and takes in outside air into the circulation air passage An air intake port, an exhaust port for discharging a part of the drying air flowing through the circulation air passage from the circulation air passage, and an intake valve for controlling the intake of outside air into the air intake port. With supplemented lint Serial filter device lint removing means is provided for removing from said control means, the internal pressure of the rotating tub in which opening the intake valve exceeds a predetermined value, to drive the lint removing means.

  As a result, even if the lint is deposited on the dry filter device during the drying operation, the lint removing means can be operated after reducing the pressure with which the lint is pressed against the dry filter device, so that the lint can be more reliably removed. Can do.

  The clothes dryer of the present invention can realize a clothes dryer that reliably removes lint during a drying operation.

Sectional drawing which shows schematic structure of the washing dryer in Embodiment 1 of this invention. Diagram showing the heat pump system of the washer / dryer Operation explanatory diagram of the washing dryer Enlarged view of the main parts of the washer / dryer Enlarged view of the main parts of the washer / dryer Cross section of the main part of the washing and drying machine Configuration diagram of a conventional washing and drying machine

  According to a first aspect of the present invention, there is provided a clothes dryer, comprising: a rotating tub rotatably provided in a housing; a motor that rotationally drives the rotating tub; a circulation air passage that introduces drying air into the rotating tub; and the circulation Blowing means for blowing air to the air passage, dehumidifying means for dehumidifying the drying air coming out of the rotating tank, heating means for heating the drying air dehumidified by the dehumidifying means, and capturing lint contained in the drying air A drying filter device, pressure detecting means for detecting the pressure in the rotating tub, and control means for controlling washing and drying operation, an intake port for taking outside air into the circulation air passage, and the circulation air passage An exhaust port that discharges a part of the drying air flowing through the circulation air passage and an intake valve that controls the intake of outside air into the intake port are provided. Remove from filter device The controller removes the pressure applied to the accumulated lint by opening the intake valve and driving the lint remover when the internal pressure of the rotary tank exceeds a predetermined value. The lint can be more reliably removed from the drying filter device during the drying operation.

  In the clothes dryer of the first invention in particular, the second invention is a compressor for compressing the refrigerant, a radiator for radiating the heat of the compressed refrigerant, and a throttle means for reducing the pressure of the high-pressure refrigerant. And a heat pump device connected by a pipe line so that the refrigerant circulates through a heat absorber that takes the heat from the surroundings of the refrigerant that has been decompressed and reduced in pressure, an intake port that takes outside air into the circulation air passage, and the circulation air passage An exhaust port for discharging a part of the drying air flowing through the circulation air passage, and when the internal pressure of the rotary tank exceeds a predetermined value, the intake port is opened. The object to be dried can be dried at a low temperature without overheating, and can be efficiently dried with less energy. Further, when lint accumulates on the drying filter device and the amount of air flowing through the circulation air passage decreases and the pressure in the rotary tank rises, the refrigerant exhausts heat by the exhaust heat action of the drying air exhausted from the exhaust port. At the same time, the pressure in the rotating tank can be reduced, and lint can be efficiently removed from the dry filter device.

  In the clothes dryer of the first and second inventions in particular, the third invention is a water tank elastically supported in the housing, a water supply means for supplying washing water to the water tank, and the washing water in the water tank is discharged. With a drainage means and a drainage path for draining the wash water in the water tank to the outside of the housing through the drainage means, and having a washing function, it is possible to use one machine without changing clothes from washing to drying. It is convenient because it can be done.

  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)
1 is a cross-sectional view showing a schematic configuration of a washing / drying machine according to Embodiment 1 of the present invention, FIG. 2 is a diagram showing a heat pump system of the washing / drying machine according to Embodiment 1 of the present invention, and FIG. It is operation | movement explanatory drawing in Embodiment 1 of invention.

  1 to 3, the water tank 1 is elastically supported by a plurality of suspension mechanisms 3 inside a housing 2 of the washing / drying machine. The rotating tub 4 has a loading port 6 for taking in and out the laundry 5 on the front side, is configured in a bottomed cylindrical shape, and is disposed in the water tub 1. The rotating tub 4 is rotatably provided on the rotating shaft 4a and accommodates laundry 5 such as clothes.

  A plurality of through holes 8 are provided in the peripheral side wall 7 of the rotating tub 4 over the entire circumference, and the laundry 5 is lifted in the rotating direction of the rotating tub 4 inside the peripheral side wall 7 of the rotating tub 4. A stirring baffle 9 is provided. The water tank 1, the rotating tank 4, and the rotating shaft 4 a are provided to be tilted forward and upward at an angle θ (for example, 10 to 20 °) with respect to the horizontal.

  A motor 10 that rotationally drives the rotating tub 4 is provided outside the back side of the water tub 1, and the rotating tub 4 can be rotated forward and backward by the motor 10. The motor 10 is constituted by a brushless DC motor or the like, and the rotation speed can be freely changed by inverter control. A door body 11 that opens and closes the insertion port 6 is provided on the front surface of the housing 2. The opening 1 a of the water tank 1 facing the inlet 6 is airtightly connected to the housing 2 by a flexible packing 12 that can be expanded and contracted.

  When the door body 11 is closed, the packing 12 provided in the opening 1a of the water tank 1 is in close contact with the inner surface of the door body 11, and the water tank 1 becomes a water-tight and air-tight space for washing, rinsing, dehydration, and drying. When executing the process, water and air are not leaked to the outside.

  A water supply valve (water supply means) 13 is attached in the housing 2, and a water supply path 14 communicating with the water tank 1 is connected to the water supply valve 13 via a detergent case (not shown). By opening and closing the water supply valve 13, tap water can be supplied to the water tank 1 and stopped.

  Further, a drainage passage 15 is connected to a drainage port 1 b provided at the bottom of the water tank 1, and a drainage valve (drainage means) 16 is provided. By opening and closing the drain valve 16, the washing water in the water tank 1 can be drained and stopped.

  A branch path 18 communicating with an air trap 17 provided in the vicinity of the lower end of the back surface of the water tank 1 is connected to the drain path 15 between the water tank 1 and the drain valve 16. The air trap 17 is provided with a pressure detection means 20 for detecting the pressure in the rotating tub 4, that is, in the water tub 1, at the upper end of the air trap 17 through a pressure detection path 19 extending upward.

  The pressure detection means 20 includes, for example, a pressure sensor that has a diaphragm inside and detects pressure from the amount of deformation of the diaphragm that is deformed when pressure is applied. The sensing part that receives the pressure in the water tank 1 is located in the vicinity of the upstream side of the drain valve 16 provided in the drain path 15 and is the entrance of the branch path 18 that leads to the pressure detection means 20 via the pressure detection path 19.

  Further, the drainage passage 15 is provided with a drainage trap 21 formed in a substantially U shape on the downstream side of the drainage valve 16. The drain trap 21 is formed of a bendable bellows-shaped drain hose, and is provided in the housing 2 below the bottom of the water tank 1 with the trap height higher than the inner diameter of the drain hose.

  A discharge port 22 is provided in the peripheral side wall 7 in the upper front portion of the water tank 1, and a blower port 23 is provided in the back surface of the water tank 1. The discharge port 22 and the air blowing port 23 are connected to each other by a circulation air passage 24 extending from the front upper side of the water tank 1 toward the rear side.

  The circulation air passage 24 includes a drying filter device 25 that captures lint that passes through the circulation air passage 24 together with the drying air, a blower unit 26 that supplies the drying air to the rotating tub 4, and dehumidification and heating of the drying air. A heat pump device 27 is provided.

  The blower means 26 includes a fan 26a having a blade shape and a fan motor 26b that rotationally drives the fan 26a. The drying air blown by the blower 26 is blown into the rotary tank 4 from the blower opening 23.

  The drying air discharged into the water tank 1 from the through hole 8 of the rotating tank 4 flows into the circulation air passage 24 from the discharge port 22 as shown by an arrow A in FIG. In addition, it is configured to circulate to the rotating tub 4 through the blowing means 26 and the blowing port 23.

  The heat pump device 27 includes a compressor 32 that compresses the refrigerant, a radiator (heating means) 33 that radiates heat of the compressed high-temperature and high-pressure refrigerant, and a capillary tube that reduces the pressure of the high-pressure refrigerant. The pipe 34 is connected to the means 34 so that the refrigerant circulates through a heat absorber (dehumidifying means) 35 in which the refrigerant whose pressure is reduced to a low pressure takes heat from the surroundings.

  The drying air blown by the blowing means 26 is cooled and dehumidified by the heat absorber 35 provided in the circulation air passage 24, heated by the radiator 33, supplied from the blower opening 23 to the rotating tank 4, and the circulation air is discharged from the discharge opening 22. It flows into the path 24 and circulates.

  The circulation air passage 24 has an exhaust port 29 through which a part of the drying air flowing out from the rotary tank 4 can be discharged out of the circulation air passage 24, and is configured to be opened and closed by an exhaust valve 29a. Between the exhaust port 29 and the heat absorber 35, there is an intake port 28 through which outside air can be introduced into the circulation air passage 24, and the intake port 28a can be opened and closed.

  A drying filter device 25 that captures lint that passes through the circulation air passage 24 together with drying air is disposed in the circulation air passage 24 between the exhaust port 29 and the intake port 28.

  As shown in FIGS. 4 to 6, the drying filter device 25 includes an introduction unit 25a for introducing drying air, a first filter unit 25b for capturing lint from the drying air introduced from the introduction unit 25a, The second filter unit 25c, the opening 25d that guides the remaining drying air that has not passed through the first filter unit to the second filter unit, and the lint removing device 37. The opening 25d is provided between the first filter portion 25b and the second filter portion 25c. Each of the first filter portion 25b and the second filter portion 25c includes a first mesh portion 25e and a second mesh portion 25f each having a substantially cylindrical shape, and when the drying air passes through the mesh portion, The lint contained in the air is captured by the dry filter device 25. The first mesh portion 25e and the second mesh portion 25f are coaxial.

  The lint removing device 37 is configured by connecting a spiral lint collecting body 37a inscribed along the first mesh portion 25e and a subordinate gear 37b on the first end 38a side of the lint collecting body 37a. The slave gear 70b has a shape in which two parts divided for assembly are integrated by screws. The cross-sectional shape of the connecting portion between the lint collecting body 37a and the subordinate gear 37b is Y-shaped, and a gap is provided between the lint collecting body 37a and the subordinate gear 37b on the entire circumference. The lint collector 37a is molded of resin. A first bearing 24g and a second bearing 25h are formed in the vicinity of the first end 38a of the lint removing device 37 and the second end 38b on the opposite side.

  The lint storage area 39 is an area on the second filter portion 25c side inside the dry filter device 25, is provided adjacent to the lint collection body 37a, and the lint scraped off by the lint collection body 37a is transported and stored. It is an area.

  The washing and drying machine main body is provided with a drive motor 40 for driving the lint removing device 37 and a drive gear 42 attached to the tip of the motor rotating shaft 41 of the drive motor 40.

  The slave gear 37 b constituting the lint removing device 37 is connected to the drive gear 42 and transmits the rotational drive of the drive motor 40 to the lint removing device 37. When viewed from the drive motor 40 side, the lint removing device rotating shaft 37d is on the right side of the motor rotating shaft 41. At this time, the rotating direction of the driving gear 42 is clockwise, and the rotating direction of the lint removing device 37 is counterclockwise. is there. The spiral shape of the lint collector 37a is in the right-hand screw direction.

  The lint collecting body 37a has a spiral shape inscribed along the first mesh portion 25e.

  The control means 30 is disposed at the lower front part in the housing 2 and controls the motor 10, the water supply valve 13, the drain valve 16, the air blowing means 26, the heat pump device 27, the lint removing device 37, etc., and is washed, rinsed, Control each step of dehydration and drying sequentially. The output of the pressure detection means 20 for detecting the pressure in the water tank 1 and the water level of the washing water and the output of the motor rotation speed detection means 31 for detecting the rotation speed of the motor 10 are input.

  The operation and action of the washing / drying machine configured as described above will be described below. By inputting the selection of the driving course and the time of each process from the operation display unit 44 provided on the front upper portion of the housing 2, the control means 30 performs a series of operations from washing to drying based on the set content. It is possible to carry out, and it is also optionally possible to carry out only the drying step.

  When washing is performed, the door body 11 is opened, the laundry 5 is put into the rotating tub 4, and an operation course or the like is input from the operation display unit 44 to start the operation. Water and detergent are supplied to the inside, and the rotating tub 4 is rotationally driven by the motor 10 to start the washing process.

  When the rotating tub 4 rotates at a predetermined speed, the laundry 5 is lifted in the rotating direction by the stirring baffles 9 provided at a plurality of locations on the inner peripheral surface, and is tapped by dropping from above in the rotating tub 4. Washing is performed by repeating the washing for a predetermined time.

  After the washing process, the rinsing process and the dehydrating process are executed to complete the washing process. When an operation course for consistently executing from the washing process to the drying process is selected and input, when the washing process is completed, the control unit 30 executes the drying process following the washing process. Moreover, when drying wet clothes etc., only a drying process can be performed.

  In the drying process, when the laundry 5 or wet clothing (hereinafter referred to as clothing) that has been dehydrated is stored in the rotating tub 4 and the drying process is executed, the rotating tub 4 is rotated at the rotation speed set in the drying process. , The air blowing means 26 and the heat pump device 27 are driven, and the air circulation of the drying air into the rotating tub 4 is started. In this drying process, the water tank 1 plays the same role as a drying chamber in a clothes dryer.

  In the heat pump device 27, the refrigerant is compressed by the operation of the compressor 32, and by this pressure, the refrigerant flows through the pipeline 36 from the compressor 32 and circulates through the radiator 33, the throttle means 34, the heat absorber 35, and the compressor 32. The heat of the compressed refrigerant flows into the radiator 33 and is radiated to the air in contact with the fins provided in the pipes 36 provided in the radiator 33. Air is heated.

  The heated drying air is supplied from the blower opening 23 to the rotating tub 4, takes moisture from the clothes 5, becomes moist air, and is discharged from the discharge opening 22 to the circulation air passage 24. Lint 43 such as lint is generated from the garment 5 as the garment 5 is dried. The drying air discharged from the discharge port 22 passes through the dry filter device 25, and the lint 43 contained in the air is captured by the dry filter device 25.

  Specifically, drying air is introduced from the introduction portion 25a, and the first filter portion 25b and the first mesh 25e and the second mesh 25f provided in the second filter portion 25c lint. To capture.

  The drying air from which the lint 43 has been removed by the drying filter device 25 is dehumidified by the removal of sensible heat and latent heat when passing through the heat absorber 35 through which the refrigerant that has been decompressed by the throttling means 34 flows into a low pressure. Condensed water generated by dehumidification drops to a water storage section (not shown), and the drying air that has been dehumidified and dried passes through the radiator 33 and is heated. The dehumidified condensed water is drained outside the machine through the drainage path 15.

  The amount of heat by which the drying air is heated by the radiator 33 is approximately equal to the sum of the power consumption of the compressor 32 and the amount of heat absorbed from the drying air by the heat absorber 35. It is possible to heat the drying air by obtaining an output greater than the input power. However, if the drying air in the circulation air passage 24 is repeatedly circulated, the amount of heat of the entire drying air will continue to accumulate for the amount of heat radiated naturally from the amount of power consumed by the compressor 32. Become.

  At the same time, the amount of heat of the refrigerant in the heat pump device 27 continues to increase, the temperature and pressure of the refrigerant excessively increase, and there is a possibility that the compressor 32 will be overloaded. In order to avoid this, an exhaust port 29 for exhausting a part of the drying air flowing through the circulation air passage 24 to the outside of the circulation air passage 24 and an intake port 28 for introducing outside air into the circulation air passage 24 are provided. Yes.

  The generation of the lint 43 from the garment 5 is more generated as the garment 5 is dried from the start of drying when the garment 5 is wet, and the amount deposited on the dry filter device 25 is increased. This makes it difficult for the drying air to flow.

  In the drying process, the drain valve 16 is normally closed. As the drying process proceeds, the drain valve 16 is opened at a predetermined interval for a predetermined time in order to drain the water accumulated in the water tank 1. When the drying process is performed in a state where lint is accumulated on the drying filter device 25, it is difficult for the drying air circulating in the circulation air path 24 to flow downstream from the drying filter device 25.

  In this state, when the drying air is blown into the water tank 1 by the blowing means 26, the pressure in the water tank 1 increases.

  During the drying process, lint deposits on the drying filter device 25 and the internal pressure of the water tank 1 rises. As shown in FIG. 3, before the internal pressure in the water tank 1 reaches the water pressure (h0) at which the trap portion 46 breaks, the pressure detection means 20 indicates that the internal pressure in the water tank 1 becomes a predetermined pressure (h1: for example, 400 kPa). Is detected, the control means 30 causes the heat pump device 27 to open the intake valve 28a provided at the intake port 28 to introduce outside air into the circulation air passage 24, and open the exhaust valve 29a provided at the exhaust port 29 to open the circulation wind. Part of the drying air flowing through the passage 24 is exhausted outside the circulation air passage 24.

  The circulation air flow is reduced by the lint 43 accumulation on the drying filter device 25, but the drying air discharged from the exhaust port 29 reduces the pressure in the water tank 1 together with the exhaust heat of the refrigerant, and the pressure in the water tank 1 is effective. Can be lowered. Due to the decrease in internal pressure, the pressure at which the lint 43 is pressed against the mesh decreases. Thereafter, the lint removing device 37 is operated by the control means 30.

  Specifically, the lint collection body 37a has a spiral shape inscribed along the first mesh portion 25e, and the lint collection body 37a is rotated by driving the drive motor 40 by the control means 30. When the vicinity of the contact portion of the lint collecting body 37a scrapes the lint 43, a force in the radial direction and the thrust direction of the mesh is applied to the lint 43 on the mesh. Due to this force, the lint 43 moves in the direction Z along the lint removing device rotating shaft 37d while being scraped off, so that even if the lint 43 thus scraped is fine, the lint accommodation region is formed in the spiral shape portion. Can transport up to 39. For this reason, the lint 43 can be easily transferred to the lint accommodation area 39 by the lint collecting means 37a even when the air blowing means 26 is driven.

  Furthermore, the drying that flows through the circulation air passage 24 by the introduction of the outside air into the circulation air passage 24 and the partial exhaust of the drying air causes the cooling of the outside air to flow into the circulation air passage 24 and the exhaust of the high-temperature drying air. Since the temperature of the working air is lowered, the temperature of the refrigerant is also lowered, and the compressor 32 is prevented from being overloaded due to the excessive rise of the refrigerant temperature.

  When the refrigerant temperature is lowered to a predetermined temperature, the intake valve 28a and the exhaust valve 29a are closed, and there is no introduction of outside air from the intake port 28 and exhaust from the exhaust port 29, and drying that is blown into the circulation air path 24. The amount of heat is accumulated in the working air, and drying air with a high drying effect circulates.

  As described above, in the present embodiment, the water tank 1 elastically supported in the housing, the rotary tank 4 rotatably provided in the water tank, the motor 10 that rotationally drives the rotary tank, Water supply means 13 for supplying washing water to the aquarium, drainage means 16 for discharging the washing water in the aquarium, and drainage passage 15 for draining the washing water in the aquarium to the outside of the housing via the drainage means The circulation air passage 24 for introducing the drying air into the water tank, the air blowing means 26 for blowing air to the circulation air path, the dehumidifying means 35 for dehumidifying the drying air coming out of the water tank, and the dehumidification means The heating means 33 for heating the drying air, the drying filter device 25 for capturing the lint 43 contained in the drying air, the pressure detection means 20 for detecting the pressure in the water tank, and the washing and drying operations. With control means 30 The circulation air passage controls the intake port 28 for taking in outside air, the exhaust port 29 for discharging a part of the drying air flowing through the circulation air passage from the circulation air passage, and the intake of the outside air into the intake port. The dry filter device is provided with a lint removing means 37 for removing the supplemented lint from the filter device, and the control means is configured to remove the intake valve when an internal pressure of the water tank exceeds a predetermined value. Is opened, and the lint removing means is driven to wash, and even when the drying operation is performed in a state where the lint is accumulated on the drying filter device 25, the lint can be surely removed, so that the drying performance is improved. be able to.

  Use of the heat pump device is effective because the heat exhausting action of the refrigerant and the lowering of the internal pressure can be efficiently performed simultaneously.

  Furthermore, in the present embodiment, the radiator 33 of the heat pump device 27 is used as the heating means, and the heat absorber 35 is used as the dehumidifying means, and a predetermined drying performance can be obtained at a low temperature and a small amount of power consumption.

  The intake valve 28a is opened and the lint removing device 37 is driven when the internal pressure of the rotary tank 4, that is, the water tank 1, exceeds a predetermined value, but the intake valve 28a is driven when the internal pressure exceeds a predetermined fluctuation range. May be opened. Thereby, even if the internal pressure of the water tank 1 is a pressurization or a negative pressure, it can respond similarly.

  Note that the same effect as described above can be expected with regard to the lint removal performance from the dry filter device 25 even when the heater is used as the heating means and the water-cooled dehumidification method is used as the dehumidifying means.

  In this embodiment, the washing / drying machine is used. However, a clothes drying machine that does not have a washing function has the same effect on the lint removal performance and the performance improvement by the heat pump device.

  As described above, the clothes dryer according to the present invention can automatically and reliably remove lint from the drying filter device during the drying process, and saves the user from having to care and improves the drying performance. Therefore, it is useful as a clothes dryer.

DESCRIPTION OF SYMBOLS 1 Water tank 2 Case 4 Rotating tank 10 Motor 13 Water supply valve (water supply means)
15 Drainage path 16 Drainage valve (Drainage means)
DESCRIPTION OF SYMBOLS 20 Pressure detection means 24 Circulation air path 25 Drying filter apparatus 26 Blower means 27 Heat pump apparatus 28 Intake port 28a Intake valve 29 Exhaust port 30 Control means 33 Radiator (heating means)
35 Heat absorber (dehumidifying means)
37 Lint remover (Lint remover)

Claims (3)

A rotating tank provided rotatably in the housing;
A motor for rotationally driving the rotating tub,
A circulation air passage for introducing drying air into the rotary tank;
A blowing means for blowing air to the circulation air passage;
Dehumidifying means for dehumidifying the drying air that has come out of the rotating tank;
Heating means for heating the drying air dehumidified by the dehumidifying means;
A drying filter device for capturing lint contained in drying air;
Pressure detecting means for detecting the pressure in the rotating tank;
Control means for controlling washing and drying operation,
An intake port that takes in outside air into the circulation air passage, an exhaust port that discharges a part of drying air flowing through the circulation air passage from the circulation air passage, and an intake valve that controls intake of outside air into the intake air port And
The dry filter device is provided with lint removing means for removing the supplemented lint from the filter device,
The said control means is a clothes dryer which opens the said intake valve and drives the said lint removal means, when the internal pressure of the said rotation tank exceeds a predetermined value. A compressor for compressing the refrigerant;
A radiator that dissipates the heat of the compressed refrigerant;
Throttle means for reducing the pressure of the high-pressure refrigerant;
A heat pump device that is connected by a pipe line so that the refrigerant circulates through a heat absorber in which the reduced pressure and low pressure refrigerant takes heat from the surroundings;
An intake port for taking outside air into the circulation air passage;
An exhaust port for discharging a part of the drying air flowing through the circulation air passage from the circulation air passage;
The clothes dryer according to claim 1, wherein when the internal pressure of the rotating tub exceeds a predetermined value, the air inlet is opened. A water tank elastically supported in the housing;
Water supply means for supplying washing water to the water tank;
Drainage means for discharging the wash water in the aquarium;
A drainage path for discharging the washing water in the water tank to the outside of the housing through the drainage means,
The clothes dryer according to claim 1 or 2, having a washing function.

Images