JP2001293278A - Drum type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the overheat of a heating means and improve reliability by flushing residual accumulated lint in a heat exchanger and smoothening flow of circulating air circulating in a path in a water tub, the heat exchanger, and the like, in a drum type washing and drying machine successively controlling each process of washing, rinsing, dewatering and drying in a rotating drum disposed rotatably in an approximately horizontal direction. SOLUTION: An exhaust hose 6 is provided to the water tub 3 involving the rotating drum 1 provided rotatably in an approximately horizontal direction. The water tub 3 is communicated with an air fan 7 through the exhaust hose 6 and the heat exchanger 5, while the heating means 8 communicated with the air fan 7 is made to open into the water tub 3. A waste water pump 12 is communicated with the water tub 3, and water is fed to the heat exchanger 5 by a feed water valve 13. The water is intermittently or continuously discharged into the heat exchanger 5 by the feed water valve 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drum type washing / drying machine for sequentially controlling processes such as washing, rinsing, spin-drying and drying in a rotating drum arranged rotatably in a substantially horizontal direction.

[0002]

2. Description of the Related Art Conventionally, this type of drum type washing and drying machine has been configured as shown in FIG. Hereinafter, the configuration will be described.

[0003] As shown in FIG. 3, a rotary drum 1 is provided with a large number of water passage holes 2 on the entire outer peripheral portion, rotatably disposed in a water tank 3, and driven by a motor 4. I have. The heat exchanger 5 communicates with the inside of the water tank 3 via an exhaust hose 6. The blower fan 7 is in communication with the heat exchanger 5,
The heating means 8 communicates with the blower fan 7 and opens into the water tank 3. A rib 9 is provided in the heat exchanger 5 and a water temperature detecting thermistor 10 for detecting a cooling water temperature is provided.

A temperature fuse 11 for preventing an excessive temperature rise is provided near the heating means 8. The drain pump 12 drains water in the water tank 3, and the water supply valve 13 supplies water to the water tank 3. The control device 14 has a microcomputer,
Motor 4, blower fan 7, heating means 8, drain pump 1
2. The operation of the water supply valve 13 and the like is controlled to sequentially control each process such as washing, rinsing, dehydrating, and drying.

The operation of the drying process in the above configuration will be described. When the laundry is put into the rotating drum 1 and the drying process is started, the blower fan 7 and the heating device 8 are driven by the control means 14, and the arrow shown in FIG. As shown by, hot air circulates through a series of paths passing through the water tank 3 and the heat exchanger 5. Further, the water supply valve 13 is operated to supply water into the heat exchanger 5 and to perform heat exchange by contacting with moist hot air to perform dehumidification.

[0006]

In such a conventional structure, lint generated from clothes during the drying process is washed away by the cooling water in the heat exchanger 5, but animal hair, cotton, etc. are remarkably adhered. In the case of clothing, it remains in the exhaust hose 6 and the heat exchanger 5 and obstructs the flow of circulating air circulating through a series of paths passing through the water tank 3 and the heat exchanger 5.
Caused excessive temperature rise. As a result, the thermal fuse 11 blows, which causes a product failure.

The present invention solves the above-mentioned conventional problems. The present invention solves the above problem by washing away the lint remaining in the heat exchanger, smoothing the flow of circulating air circulating through a water tank, a heat exchanger, and the like, thereby providing a heating means. The purpose of the present invention is to prevent the temperature from rising excessively and improve the reliability.

[0008]

In order to achieve the above object, the present invention provides an exhaust hose in a water tank containing a rotating drum disposed rotatably in a substantially horizontal direction. The heating means is opened in the water tank in communication with the air blowing means through the air blowing means, drainage means such as a pump is communicated in the water tank, and water is supplied to the heat exchanger by the water supply means, Water is intermittently or continuously discharged into the heat exchanger by water supply means.

As a result, the lint remaining in the heat exchanger can be washed away, and the flow of the circulating air circulating in the water tank, the heat exchanger and the like can be made smooth, and the temperature of the heating means can be prevented from rising excessively. And reliability can be improved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a rotary drum arranged rotatably in a substantially horizontal direction, a water tank containing the rotary drum, and an exhaust hose provided in the water tank. Blower means communicating with the exhaust hose via a heat exchanger; heating means communicating with the blower means and opening in the water tank; drain means such as a pump communicating with the water tank; and the heat exchanger And a water supply means for supplying water to the heat exchanger, wherein the water supply means intermittently or continuously discharges water into the heat exchanger, and the water supply means discharges water into the heat exchanger, The lint remaining in the heat exchanger can be washed away, the flow of the circulating air circulating through the water tank, heat exchanger, etc. can be smoothed, and the temperature of the heating means can be prevented from rising excessively. Performance can be improved.

According to a second aspect of the present invention, there is provided a rotary drum rotatably disposed in a substantially horizontal direction, a water tank containing the rotary drum, an exhaust hose provided in the water tank, and heat exchange with the exhaust hose. A blower communicating with the air blower, a heater communicating with the blower and opening into the water tank, a drainer such as a pump communicating with the water tank, and the drainer and the heat exchanger. Equipped with a bypass hose,
Water is supplied into the heat exchanger through the bypass hose by the drainage means, and lint remaining in the heat exchanger is washed out and drained by supplying water into the heat exchanger by the drainage means. Can, aquarium,
The flow of the circulating air circulating in a path such as a heat exchanger can be made smooth, the temperature of the heating means can be prevented from rising excessively, and the reliability can be improved.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. Components having the same configuration as the conventional example are denoted by the same reference numerals, and description and illustration are omitted.

(Embodiment 1) As shown in FIG. 1, a control unit 15 has a microcomputer, and includes a motor 4, a blower fan (blower unit) 7, a heating unit 8, a drainage pump (drainage unit) 12, and a water supply. The operation of the valve (water supply means) 13 and the like is controlled to sequentially control each process such as washing, rinsing, dehydration, and drying. At the end of the drying process, the water supply valve 13 is operated to exchange heat through the water passage hose 16. It is configured to discharge water intermittently or continuously into the vessel 5. Other configurations are the same as the conventional example.

The operation of the drying process in the above configuration will be described. When the laundry is put into the rotating drum 1 and the drying process is started, the control means 15 drives the blower fan 7 and the heating means 8 and the arrow in FIG. As shown by, hot air circulates through a series of paths passing through the water tank 3 and the heat exchanger 5. Further, the water supply valve 13 is operated to supply water into the heat exchanger 5 and to perform heat exchange by contacting with moist hot air to perform dehumidification.

At the end of the drying process, the water supply valve 13 is operated to discharge water intermittently or continuously into the heat exchanger 5 through the water passage hose 16. As a result, the lint 17 remaining in the heat exchanger 5 can be washed away, and the water tank 3,
The flow of the circulating wind circulating through the path such as the heat exchanger 5 can be made smooth, and the temperature of the heating means 8 can be prevented from rising too much
Reliability can be improved.

(Embodiment 2) As shown in FIG. 2, a bypass hose 18 connects the drain pump 12 and the heat exchanger 5, and
When the drainage pump 12 is driven in the washing and drying steps, a part of the drainage is sent into the heat exchanger 5 through the bypass hose 18 by the drainage pump 12.
Other configurations are the same as those in the above embodiment.

The operation of the drying process in the above construction will be described. When the laundry is put into the rotating drum 1 and the drying process is started, the control means 15 drives the blower fan 7 and the heating means 8 and the arrow in FIG. As shown by, hot air circulates through a series of paths passing through the water tank 3 and the heat exchanger 5. Further, the water supply valve 13 is operated to supply water into the heat exchanger 5 and to perform heat exchange by contacting with moist hot air to perform dehumidification.

When the drain pump 12 is driven during the washing and drying steps, a part of the drain water passes through the bypass hose 18 and enters the heat exchanger 5 as shown by arrows in FIG. Discharged. As a result, the lint 17 deposited inside the heat exchanger 5 is flushed into the water tank 3 and drained. Thereby, the flow of the circulating air circulating through the paths such as the water tank 3 and the heat exchanger 5 can be made smooth, the temperature of the heating means 5 can be prevented from rising excessively, and the reliability can be improved.

[0019]

As described above, according to the first aspect of the present invention, a rotary drum is provided so as to be rotatable in a substantially horizontal direction, a water tank including the rotary drum, and a water tank provided in the water tank. Exhaust hose, a blowing means communicating with the exhaust hose via a heat exchanger, a heating means communicating with the blowing means and opening in the water tank, and a drain means such as a pump communicating with the water tank, Water supply means for supplying water to the heat exchanger, wherein the water supply means intermittently or continuously discharges water into the heat exchanger, so that the water supply means discharges water into the heat exchanger. In this way, lint remaining in the heat exchanger can be washed away, lint clogging in the heat exchanger can be reduced, and the flow of circulating air circulating in the water tank, heat exchanger, etc. can be smoothed, Prevent overheating of heating means Can, it is possible to improve the reliability.

According to the second aspect of the present invention, the rotary drum is provided so as to be rotatable in a substantially horizontal direction, the water tank including the rotary drum, the exhaust hose provided in the water tank, and the exhaust hose. Blowing means communicating with a hose and a heat exchanger, heating means communicating with the blowing means and opening into the water tank, and drainage means such as a pump communicating with the water tank,
Since the drainage unit and a bypass hose communicating the heat exchanger are provided, and the drainage unit sends water into the heat exchanger through the bypass hose, the drainage unit sends water into the heat exchanger. In, the lint remaining in the heat exchanger can be washed out and drained,
Lint clogging in the heat exchanger can be reduced, and the flow of circulating air circulating in the water tank, heat exchanger, etc. can be smoothed,
Excessive temperature rise of the heating means can be prevented, and reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a drum type washer / dryer according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a drum-type washing / drying machine according to a second embodiment of the present invention.

FIG. 3 is a sectional view of a conventional drum type washer / dryer.

[Explanation of symbols]

 Reference Signs List 1 rotating drum 3 water tank 5 heat exchanger 6 exhaust hose 7 blower fan (blower means) 8 heating means 12 drainage pump (drainage means) 13 water supply valve (water supply means)

Claims (2)

[Claims] 1. A rotating drum disposed rotatably in a substantially horizontal direction, a water tank including the rotating drum, an exhaust hose provided in the water tank, and a blower communicating with the exhaust hose via a heat exchanger. Means, a heating means which communicates with the air blowing means and is opened in the water tank, a drain means such as a pump which communicates with the water tank, and a water supply means for supplying water to the heat exchanger. A drum-type washer / dryer that discharges water intermittently or continuously into a heat exchanger. 2. A rotary drum rotatably arranged in a substantially horizontal direction, a water tank containing the rotary drum, an exhaust hose provided in the water tank, and a blower communicating with the exhaust hose via a heat exchanger. Means, heating means communicating with the air blowing means and opened in the water tank, drainage means such as a pump communicated in the water tank, and a bypass hose communicating the drainage means and the heat exchanger, A drum type washer-dryer configured to supply water into the heat exchanger through the bypass hose by the drainage unit.