JP6040418B2 - Clothes dryer - Google Patents

Description

  The present invention relates to a clothes dryer for drying textiles such as clothes and a method for cleaning an evaporator of the clothes dryer.

  Conventionally, in this type of clothes dryer equipped with a heat pump device, lint generated from textile products such as clothes is mixed into the drying air and deposited on the blower and heat exchanger provided in the circulation air passage. In order to reduce the function, a lint filter that captures lint from the drying air is provided in the circulation air passage. However, since it is necessary to ensure a certain amount of blowing air for the drying air flowing through the circulation air passage, it is difficult to completely remove the lint from the drying air that passes through the lint filter, and the lint that has passed through the lint filter. Adheres to the heat exchanger. Therefore, it is considered that the lint attached to the heat exchanger is washed with tap water (for example, see Patent Document 1).

  FIG. 10 shows a configuration of a clothes dryer having a conventional washing function described in Patent Document 1. In FIG. In FIG. 10, a drum 52 that accommodates clothing 51 and is rotationally driven is rotatably provided in the outer tub 53, and water is supplied into the outer tub 53, drained from the outer tub 53, and rotation of the drum 52. Washing, rinsing, dehydration, and drying steps are executed under control.

  In addition, a heat pump device 59 is provided in which a refrigerant is circulated through the compressor 54, the condenser 55, the throttle means 56, and the evaporator 57 so as to circulate the refrigerant, and the condenser 55 and the evaporator of the heat pump device 59 are provided. Reference numeral 57 denotes a circulation air passage 60 that circulates drying air. The inlet side of the circulation air passage 60 is connected to an exhaust port 61 provided at the upper front portion of the outer tub 53, and the outlet side of the circulation air passage 60 is an air outlet 62 provided at the upper rear surface of the outer tub 53. It is connected to the communication. A blower 63 is provided in the circulation air path 60 between the condenser 55 and the blower port 62.

  When the drying operation is started, the compressor 54 and the blower 63 are activated. The drying air blown to the circulation air path 60 by the blower 63 is blown into the drum 52 from the blower port 62, contacts with the clothing 51 in the drum 52, removes moisture, and is dried.

  The drying air that has been deprived of moisture from the clothes 51 and has become highly humid flows into the circulation air passage 60 from the exhaust port 61, is cooled by the evaporator 57, is deprived of latent heat, is condensed, and is dehumidified. The dry drying air that has been dehumidified and has reduced absolute humidity is again heated by the condenser 55 to become dry warm air, blown into the drum 52 from the blower port 62, and blown by the blower 63. By circulating air to the drum 52 through the circulation air path 60, the drying of the clothing 51 is advanced.

  In the drying process, the lint separated from the clothing 51 in the drum 52 is mixed into the drying air circulating through the circulation air passage 60. The lint adheres to the evaporator 57 and becomes clogged, reducing the air volume and reducing the heat exchange efficiency. Therefore, a cleaning means 65 for injecting the heat exchanger cleaning aqueous solution to the evaporator 57 and the condenser 55, which are heat exchangers, by opening the water supply valve 64 that can be opened and closed is provided, and the lint adhered by the cleaning means 65 is provided. Can be removed.

  And it is described that tap water is used for washing.

JP 2005-224491 A

  However, in the conventional configuration, since the heat exchanger is washed with tap water, when the tap water and the heat exchanger communicate with each other, if there is a poor insulation in the compressor, the water pipe leaks through the tap water. However, it is necessary to cut off the tap water. In that case, the pressure of the tap water discharged to the heat exchanger is lowered, and the lint removal performance is lowered.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object thereof is to provide a clothes dryer that can avoid the risk of electric leakage without impairing lint removal performance.

In order to solve the above-mentioned conventional problems, the clothes dryer of the present invention includes a compressor, a condenser, a squeezing means, a heat pump device connected by a pipe line so that the refrigerant circulates through the evaporator,
A drying chamber for storing the objects to be dried;
An air passage leading the drying air to the drying chamber;
A blower for blowing drying air to the drying chamber;
A discharge unit disposed on the windward side of the evaporator, for discharging water toward the evaporator;
A water supply channel for supplying water from the water supply to the discharge unit;
A grounding part for grounding the charge of the heat pump device;
The ground portion is provided so as to come into contact with at least a part of water discharged from the discharge portion.

  As a result, there is no risk of electric leakage and the pressure of tap water discharged to remove lint does not decrease, so that it is possible to prevent a decrease in lint removal performance.

  The clothes dryer of the present invention can reduce the possibility of leakage due to electrical connection between tap water and the heat pump device.

System diagram of clothes dryer in Embodiment 1 of the present invention Schematic at the time of lint removal of the clothes dryer in Embodiment 1 of the present invention System diagram of clothes dryer in embodiment 2 of the present invention Schematic at the time of lint removal of the clothes dryer in Embodiment 2 of the present invention The upper perspective view which comprises a part of heat pump apparatus in Embodiment 3 of this invention. The lower perspective view which comprises a part of heat pump apparatus in Embodiment 3 of this invention. The enlarged view of the discharge part of the clothes dryer in Embodiment 3 of this invention The expanded sectional view of the discharge part of the clothes dryer in Embodiment 3 of the present invention The expanded sectional view of the discharge part of the clothes dryer in Embodiment 3 of the present invention Configuration diagram of conventional clothes dryer

The clothes dryer of the present invention includes a compressor, a condenser, a squeezing means, a heat pump device connected by a pipe line so that the refrigerant circulates through the evaporator,
A drying chamber for storing the objects to be dried;
An air passage leading the drying air to the drying chamber;
A blower for blowing drying air to the drying chamber;
A discharge unit disposed on the windward side of the evaporator, for discharging water toward the evaporator;
A water supply channel for supplying water from the water supply to the discharge unit;
A grounding part for grounding the charge of the heat pump device;
The ground portion is provided so as to come into contact with at least a part of water discharged from the discharge portion.

  Thereby, lint can be removed without deteriorating lint removal performance, heat exchange efficiency in the evaporator can be increased, and drying performance can be improved.

  The said structure WHEREIN: The said earth | ground part may be arrange | positioned between the said discharge part and the said evaporator.

  Thereby, before the water discharged from a discharge part reaches | attains an evaporator, water is discharged to an earth | ground part. Therefore, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

In the above configuration, the discharge unit includes a water supply port that supplies water from the water supply channel into the discharge unit, and a conduction discharge port that discharges water to the ground unit,
Both the water supply port and the conduction discharge port may be provided on one end side of the discharge unit.

  Thereby, since the conduction | electrical_connection discharge part which discharges water to an earth | ground part is provided in the vicinity of a water supply port, an earth | ground part and water conduct | electrically_connect previously. Therefore, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

In the above configuration, the ground portion is provided at a position lower than the height of the evaporator,
The discharge unit has a cleaning discharge port that discharges water from a height substantially the same as the height of the evaporator, and a conduction discharge port that discharges water from a height substantially the same as the installation height of the grounding unit. May be.

  Thereby, since the earth part is provided in a place far from the discharge part, it is possible to prevent the water discharged from the cleaning discharge port from being discharged to the earth part after reaching the evaporator. Therefore, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

In the above configuration, the discharge unit includes a cleaning discharge port that discharges water to the evaporator, and a conduction discharge port that discharges water to the ground unit,
The discharge unit may be configured such that a distance between the conduction discharge port and the ground unit is closer than a distance between the cleaning discharge port and the evaporator.

  As a result, the conduction to the ground portion is made earlier than the conduction to the evaporator. Therefore, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

In the above configuration, the discharge unit is provided substantially in parallel to the cleaning discharge ports, a large number of cleaning discharge ports provided across both ends, a water supply path for leading water from the water supply channel to the cleaning discharge port, and the like. And a first rib defining a part of the water channel,
A number of water inlets may be provided in the first rib.

  Thereby, the water sent to the water supply channel is prevented from flowing into the discharge port by the first rib. Further, water flows at a uniform flow rate and a uniform pressure with respect to the discharge port. Therefore, water can be discharged at a uniform flow rate without unevenness. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

  The said structure WHEREIN: The said conduction | electrical_connection discharge port may be provided in the said water supply path upstream from a said 1st rib.

  Wash water is blocked by the first rib. It becomes easy to supply water first to the conduction discharge port provided in the water supply channel upstream of the first rib. Therefore, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

In the above configuration, it has a conduction discharge port for discharging water to the ground part,
The water supply path may be provided with a second rib that is substantially perpendicular to the first rib in the vicinity of the downstream side of the conduction discharge port.

  The water supplied to the water supply path is blocked by the second rib by the second rib. Therefore, it becomes easy to supply water to the conduction discharge port. For this reason, the possibility of electric leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

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

(Embodiment 1)
FIG. 1 is a system diagram of a clothes dryer in Embodiment 1 of the present invention.

  In FIG. 1, a clothes dryer 1 has a heat pump device 7 that dehumidifies and heats drying air. The heat pump device 7 includes a compressor 2 that compresses the refrigerant, a condenser 3 that dissipates heat from the compressed high-temperature and high-pressure refrigerant, a throttle means 4 that includes a capillary tube for reducing the pressure of the high-pressure refrigerant, The evaporator 5 is depressurized to a low pressure, and the evaporator 5 takes heat from the surroundings. The heat pump device 7 is connected by a pipeline 6 so that the refrigerant circulates through the compressor 2, the condenser 3, the throttle means 4, and the evaporator 5.

  The condenser 3 and the evaporator 5 are comprised with the finned-tube heat exchanger which consists of metals. The conduit 6 through which the refrigerant flows is formed of, for example, a copper tube, and is configured by penetrating the conduit 6 through a large number of fins arranged in parallel at predetermined intervals in order to form a flow passage for drying air. The fins are formed of, for example, a punched aluminum flat plate having a thickness of 0.08 to 0.2 mm, and the fin pitch is, for example, about 1.2 mm.

Further, an air passage 10 is provided that guides the drying air exhausted from the drying chamber 9 to the drying chamber again. The heat pump device 7 forms part of the air passage 10 and includes therein an evaporator 5 that cools and dehumidifies drying air, and a condenser 3 that heats the dehumidified low-temperature drying air. The heat pump device 7 is provided with a blower 8 that sucks and exhausts drying air. The air passage 10 is connected in an annular shape with both ends thereof communicating with the drying chamber 9 for putting clothes a. In addition, a filter 11 for collecting lint generated from the clothes during the drying operation is detachably provided between the drying chamber 9 and the evaporator 5 in the air passage 10. Arrow A indicates the flow direction of the drying air.

  The drying air exhausted from the drying chamber 9 passes through the filter 11 through the air passage 10. At this time, foreign matters such as lint generated from clothing are removed by the filter 11. The dehumidified water generated in the evaporator 5 is discharged to the outside through the drain port 12. Thereafter, the drying air is cooled by the evaporator 5, whereby moisture is condensed and dehumidified. The drying air that has passed through the evaporator 5 is heated by the condenser 3. The drying air that has become hot and low in humidity is sucked into the blower 8 located leeward of the condenser 3. The drying air that has passed through the blower 8 is again introduced into the drying chamber 9 through the air passage 10. As described above, the clothes are dried.

  Foreign matter such as lint generated from clothing is roughly removed by the filter 11, but part of the foreign matter passes through the filter 11 and adheres to the upstream end surface 5 a of the evaporator 5. Therefore, lint is removed by discharging water to the upstream end face 5a.

  A discharge part 15 for discharging tap water is provided above the upstream end face 5a with respect to the flow of the drying air of the evaporator 5. Water is supplied to the discharge unit 15 from a water supply channel 16 that communicates with the tap tap 14. By controlling the opening and closing of the water supply valve 17 provided in the water supply channel 16, the tap water can be discharged and stopped. A discharge unit 15 is provided on the windward side of the evaporator 5 so that the lint attached to the evaporator 5 can be removed. That is, the water discharged from the discharge unit 15 is discharged toward the end surface 5 a on the side where the drying air flowing through the air passage 10 flows into the evaporator 5. Moreover, the discharge part 15 is provided with a ground part 13 and the other is grounded.

  In addition, although the example which used tap water was shown as water which removes the lint adhering to the evaporator 5, it may be filtered bath water, well water, etc., and the water from which lint is removed is hereinafter referred to as “washing water”. "

  About the clothes dryer comprised as mentioned above, the operation | movement and an effect | action are demonstrated below. FIG. 2 is a schematic diagram at the time of lint removal of the clothes dryer in the first embodiment of the present invention.

  In order to remove lint adhering to the evaporator 5, the water supply valve 17 is opened and closed, and tap water or the like is intermittently discharged from the discharge portion 15 for a predetermined time 0 to T1. At this time, when the compressor 2 is poorly insulated, electric leakage is caused from the compressor 2 to the tap faucet 14 through the evaporator 5 and tap water. However, by providing the grounding part 13 in the discharge part 15, it is possible to avoid leakage to the tap faucet 14.

  The predetermined time 0 to T1 is a time for discharging tap water or the like from the discharge unit 15 to remove lint attached to the evaporator 5, and is set to 60 seconds, for example. If this time is lengthened, the drying time will be extended and the usability will be poor for the user, so about 15 to 90 seconds is desirable.

  Next, when the compressor 2 and the blower 8 of the heat pump device 7 are operated to start the drying operation, the drying air blown by the blower 8 passes through the condenser 3 and is heated by heat radiation from the condenser 3. The warm air is sent to the drying chamber 9. The drying air that has come into contact with the clothes i in the drying chamber 9 removes moisture from the clothes i and dries the clothes i. At this time, the drying air becomes highly humid air. The drying air having become highly humid passes through the evaporator 5 and is cooled and condensed to be dehumidified.

  The dehumidified water generated by condensation on the entire evaporator 5 moves downward through the fins of the evaporator 5 by its own weight and is discharged from the drain port 12 to the outside of the apparatus.

  In the heat pump device 7, when the compressor 2 is operated, the heat of the high-temperature and high-pressure refrigerant compressed by the compressor 2 is radiated by the condenser 3. Further, the high-pressure refrigerant is depressurized by the throttle means 4 to become low-pressure and low-temperature, takes heat from the drying air by the evaporator 5 and returns to the compressor 2 again. The amount of heat obtained by adding the amount of heat obtained from the input of the compressor 2 to the amount of heat taken by the evaporator 5 by the refrigerant is released from the condenser 3. Here, the heat energy dissipated from the condenser 3 to the drying air is approximately equal to the sum of the amount of power consumed by the compressor 2 and the amount of heat absorbed from the drying air by the evaporator 5.

  For this reason, the condenser 3 can obtain an output that is equal to or higher than the electric power input to the compressor 2, and can heat the drying air and put it into the clothes in the drying chamber 9. As described above, the drying air that has been dehumidified and heated is put into the drying chamber 9 and brought into contact with the clothing A, thereby drying the clothing.

  As the drying of the clothing a progresses, lint is generated from the clothing i, and the generated lint is carried to the filter 11 by the drying air and collected by the filter 11. However, some lint may pass through the filter 11 without being collected by the filter 11.

  The lint that has passed through the filter 11 adheres to the end surface 5a of the upstream evaporator 5 with respect to the direction in which the drying air flows. In this embodiment, the fin pitch of the evaporator 5 is configured to be about 1.2 mm, for example. Thereby, lint will adhere only to the end face 5a of the evaporator 5 on the upstream side with respect to the flow of the drying air.

  After the clothes are dried, lint is attached to the filter 11 and the end face 5a of the evaporator 5. Since the lint adhering to the filter 11 is configured so that the filter 11 can be removed, the user can remove the lint, but the lint adhering to the evaporator 5 can be removed by the user. The lint cannot be removed.

  The amount of lint adhering to the evaporator 5 is small at the initial stage where the number of drying operations is small, but a large amount of lint adheres to the evaporator 5 when the number of drying operations increases with the use of clothes drying. It will be. As a result, the wind path pressure loss gradually increases, the air volume gradually decreases, and the drying performance decreases.

  In the present embodiment, the water supply valve 17 is opened and closed, and the end surface 5a of the evaporator 5 on which tap water or the like is attached to the tap water from the discharge unit 15 for a predetermined time (for example, 60 seconds, the opening and closing times are substantially the same) It is made to discharge intermittently toward.

  When water is continuously discharged, the lint peeled off by the discharged water gathers and becomes a lump, and the water may flow so as to avoid the lump. In such a state, even if water continues to flow continuously, it continues to flow avoiding lumps and lint cannot be removed.

  On the other hand, when water is discharged intermittently, the discharged water repeatedly collides with the lump. By repeating this, the lint is gradually peeled off, and the attached lint can be removed.

  In the present embodiment, when the water supply valve 17 is opened and closed and tap water or the like is intermittently discharged from the discharge unit 15, even if the compressor 2 has a poor insulation, the water is supplied from the compressor 2 through tap water or the like. It is possible to avoid leakage of electricity to the faucet.

As described above, in the present embodiment, in order to remove the lint attached to the evaporator 5, the water supply valve 17 is opened and closed so that tap water or the like is intermittently discharged from the discharge portion 15. Even if the compressor 2 is poorly insulated, it is possible to avoid leakage of electricity from the compressor 2 to the tap faucet 14 through tap water or the like.

(Embodiment 2)
FIG. 3 is a schematic diagram at the time of lint removal in Embodiment 2 of the present invention. FIG. 4 is a schematic diagram at the time of lint removal of the clothes dryer in Embodiment 2 of the present invention. The ground part 13 of the present embodiment is disposed between the discharge part and the evaporator. In this way, a part of the cleaning water discharged from the discharge unit 15 is discharged. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The ground unit 13 is disposed in a space between the discharge unit 15 and the evaporator 5. The ground portion 13 is provided at substantially the same height as the upper end of the end surface 5 a and the discharge portion 15.

  The cleaning water discharged from the discharge unit 15 is naturally discharged also to the ground unit 13. In order to remove lint adhering to the evaporator 5, a part of tap water or the like discharged from the discharge part 15 reaches the ground part 13, and the evaporator 5, that is, the compressor 2 is grounded via the tap water or the like. The

  The water discharged from the discharge unit 15 reaches the ground unit 13 before reaching the evaporator 5. Therefore, the ground structure can be surely taken, and the possibility of leakage in the water supply channel can be reduced. Therefore, lint can be safely removed without deteriorating lint removal performance, and heat exchange efficiency in the evaporator can be increased to improve drying performance.

  In this case, since it is not necessary to arrange the ground portion 13 in the water supply path 16 where the internal water pressure becomes high, water is supplied to remove lint, and even if the pressure inside the water supply path 16 rises, the discharge section 15 Water leakage can be prevented.

(Embodiment 3)
FIG. 5 is a partial configuration diagram of the heat pump device according to Embodiment 3 of the present invention. FIG. 6 is a lower perspective view constituting a part of the heat pump apparatus according to Embodiment 3 of the present invention. FIG. 7 is an enlarged view of the discharge unit of the clothes dryer according to Embodiment 3 of the present invention. FIG. 8 is an enlarged cross-sectional view of the discharge unit of the clothes dryer according to Embodiment 3 of the present invention, and is a view taken along the line PP in FIG. FIG. 9 is an enlarged cross-sectional view of the discharge unit of the clothes dryer according to the third embodiment of the present invention, and is a view taken in the direction of arrows QQ in FIG. In the present embodiment, the discharge unit includes a cleaning discharge port that discharges water to the evaporator and a conductive discharge port that discharges water to the ground unit. Other configurations are the same as those of the first embodiment, the same reference numerals are given to the same configurations, and the detailed description of the first embodiment is used.

  The heat pump device 7 is accommodated in a case 18 that constitutes a part of the air passage 10. Case 18 includes an upper case 18a and a lower case 18b.

  The discharge unit 15 includes a water supply port 19 provided on one end side of the discharge unit 15. The tap water supplied from the water supply path 16 is supplied into the discharge unit 15 through the water supply port 19. The discharge unit 15 includes a large number of cleaning discharge ports 20 that discharge water to the evaporator 5. As shown in FIG. 7, a large number of cleaning discharge ports 20 are provided across both ends of the discharge unit 15 so as to face the evaporator 5.

  In addition, the discharge unit 15 includes a conduction discharge port 21 a that discharges water to the ground unit 13. Since the conduction discharge port 21 a is provided on one end side of the discharge unit 15, it is provided in the vicinity of the water supply port 19. Therefore, the earth part 13 and water first conduct. As a result, the possibility of electrical leakage in the water supply channel can be reduced.

  Further, the discharge unit 15 includes a water supply path 22 that guides water from the water supply path 16 to the cleaning discharge port 20. The water supply path 22 is defined by the outline of the discharge unit 15 and a first rib 23 provided inside the discharge unit 15. The first ribs 23 are provided substantially parallel to the large number of cleaning discharge ports 20. Further, the first rib 23 is formed across both ends of the discharge unit 15. As shown in FIG. 8, the 1st rib 23 protrudes to the upper case 18a which covers a heat pump apparatus. Therefore, the water supply path 22 is also defined by the upper case 18a. The first rib 23 includes a large number of water inlets 24. The water supplied from the water supply port 19 passes through the water supply path 22 along the first rib. By the first rib, water is supplied to the large number of cleaning outlets 20 with the same amount of water and pressure. Therefore, water is discharged at a uniform flow rate without unevenness.

  The conduction discharge unit 21 is provided on the upstream side of the first rib 23. Water becomes easier to be supplied to the conduction discharge port 21 a provided in the water supply passage 22 upstream of the first rib before the cleaning discharge port 20. Therefore, the possibility of electric leakage in the water supply channel can be reduced.

  In the present embodiment, the ground portion 13 is provided at a position lower than the height of the evaporator 5. In such a configuration, when the cleaning discharge port 20 and the conduction discharge port 21 a are provided at the same height, the conduction of the evaporator 5 may be faster than the conduction of the ground portion 13. Therefore, the conduction discharge part 21 is formed in the cylindrical shape which protrudes below so that water can be discharged from the position equivalent to the installation height of the earthing | grounding part 13. FIG. Since the conduction discharge port 21a discharges water from a height substantially equal to the installation height of the grounding portion 13, the water discharged from the cleaning discharge port 20 reaches the evaporator 5 and then water is discharged to the grounding portion 13. Can be prevented.

  Furthermore, as shown in FIG. 9, the conduction discharge port 21 a is disposed in the vicinity of the ground portion 13. The distance between the conduction discharge port 21 a and the ground portion 13 is shorter than the distance between the cleaning discharge port 20 and the evaporator 5. Thereby, the conduction | electrical_connection to the earth | ground part 13 is made earlier than the conduction | electrical_connection with the evaporator 5. FIG. Therefore, the possibility of electric leakage in the water supply channel can be reduced. In addition, the distance at this time is a distance with respect to the jet direction of water. That is, the cleaning discharge port 20 is disposed at the bottom of the discharge unit 15 that is inclined. For this reason, water is discharged obliquely downward. On the other hand, the conduction discharge port 21 a is disposed on the lower side surface of the conduction discharge unit 21. Therefore, the ejection direction is ejected in the horizontal direction although it is affected by gravity. Therefore, the distances in this embodiment are the distances d1 and d2 in FIGS.

  A second rib 25 that is perpendicular to the first rib 23 is provided at the bottom of the water supply path 22 in the vicinity of the downstream side of the conduction discharge portion 21. The water supplied to the water supply path 22 is blocked by the second rib 25 by the second rib. Therefore, the water colliding with the second rib 25 is guided to the conduction discharge port 21a located on the upstream side of the second rib. That is, the water pressure to the conduction discharge port 21a is increased and water is easily supplied.

  Although the clothes dryer is used in the present embodiment, the same effect can be obtained by using a laundry dryer having a washing function and capable of washing and drying.

  Note that part of each embodiment can be implemented in combination with any of the other embodiments.

  As described above, the clothes dryer according to the present invention can remove lint without leaking water, and can improve the drying performance by improving the heat exchange efficiency. Useful as.

DESCRIPTION OF SYMBOLS 2 Compressor 3 Condenser 4 Throttling means 5 Evaporator 7 Heat pump apparatus 10 Air path 13 Grounding part 14 Tap faucet 15 Discharge part 16 Water supply path 17 Water supply valve 18 Case 19 Water supply port 20 Cleaning discharge port 21 Conduction discharge part 21a Conduction discharge Outlet 22 Water supply path 23 First rib 24 Water inlet 25 Second rib

Claims (8)

A heat pump device connected by a pipeline so that the refrigerant circulates through the compressor, the condenser, the throttle means, and the evaporator;
A drying chamber for storing the objects to be dried;
An air passage leading the drying air to the drying chamber;
A blower for blowing drying air to the drying chamber;
A discharge unit disposed on the windward side of the evaporator, for discharging water toward the evaporator;
A water supply channel for supplying water from the water supply to the discharge unit;
A grounding part for grounding the charge of the heat pump device;
The grounding unit is a clothes dryer provided to come into contact with at least a part of water discharged from the discharge unit. The clothes dryer according to claim 1, wherein the grounding unit is disposed between the discharge unit and the evaporator. The discharge unit has a water supply port for supplying water from the water supply channel into the discharge unit, and a conduction discharge port for discharging water to the ground unit,
The clothes dryer according to claim 1 or 2, wherein both the water supply port and the conduction discharge port are provided on one end side of the discharge unit. The grounding portion is provided at a position lower than the height of the evaporator;
The discharge unit includes a cleaning discharge port that discharges water from a height that is substantially the same as the height of the evaporator, and a conductive discharge port that discharges water from a height that is substantially the same as the installation height of the grounding unit. Item 4. The clothes dryer according to any one of Items 1 to 3. The discharge unit has a cleaning discharge port that discharges water to the evaporator, and a conduction discharge port that discharges water to the ground unit,
5. The discharge unit according to claim 1, wherein the discharge unit is configured such that a distance between the conduction discharge port and the ground unit is closer to a distance between the cleaning discharge port and the evaporator. Clothes dryer. The discharge section is provided with a large number of cleaning discharge ports provided at both ends, a water supply path for guiding water from the water supply path to the cleaning discharge port, and the water supply path provided substantially parallel to the cleaning discharge port. A first rib defining a part of
The clothes dryer according to any one of claims 1 to 5, wherein the first rib is provided with a plurality of water inlets. The clothes dryer according to claim 6, wherein the conduction discharge port is provided in the water supply channel on the upstream side of the first rib. A conduction outlet for discharging water to the ground part;
The clothes dryer according to claim 6 or 7, wherein a second rib that is substantially perpendicular to the first rib is provided in the water supply path in the vicinity of the downstream side of the conduction discharge port.