JPH10263256A - Drum type washing and drying machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the reduction of the washing effect of washing and the generation of molds due to scattered detergent by supplying water into a water receiving tank through a water heat exchanger immediately after starting washing and then performing control so as to supply the water to a drum through a detergent case by the changeover of a connection water supply valve. SOLUTION: At the time of starting washing, the connection water supply valve 5 is allowed to communicate with the side of the water heat exchanger 6 and air remaining inside a pressure hose 11 is released to the side of the water heat exchanger 6 first. Thus, the detergent set inside the detergent case 4 is prevented from being scattered and the generation of the molds by the detergent is prevented. Thereafter, the connection water supply valve 5 is switched to the side of the detergent case 4, the water is supplied to the detergent case 4, the detergent is made to flow into the drum and a washing processing thereafter is performed. Then, at the time of drying, the water is supplied from the connection water supply valve 5 through the water heat exchanger 6 into the water receiving tank. At the time, a fan 8 is rotated by driving a fan motor 7 for drying and the air inside the drum is pulled into the water heat exchanger 6 and dehumidified by water supply from the connection water supply valve 5.

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 and drying machine which can continuously perform washing and drying. A drum type washing and drying machine in which a detergent in a detergent case is completely dissolved in water and smoothly poured into the drum. It is about the machine.

[0002]

2. Description of the Related Art FIGS. 2 and 3 show a drum type washer / dryer, which includes a water receiving tank 2 containing a drum 1 driven to rotate about a horizontal axis, a motor 3 for driving the drum 1, and a drum 1 for driving the same. A connecting water supply valve 5 for supplying water through the detergent case 4 is provided therein. At the time of washing, water supply is started from the connecting water supply valve 5 to wash the detergent set in the detergent case 4 into the drum 1 as shown in FIG. Then, the clothes in the drum 1 are made to contain the detergent liquid, and the drum 1 is rotated left and right to wash the clothes.

During drying, water is supplied from the connection water supply valve 5 through the water-cooled heat exchanger 6 into the water receiving tank 2 as shown in FIG. Reference numeral 7 denotes a drying fan motor, which rotates the fan 8 by driving the high-humid air in the drum 1 during drying.
It is drawn into the water-cooled heat exchanger 6 and dehumidified by water supply from the connection water supply valve 5. This water enters the water receiving tank 2 and is drained through the pump 9. Numeral 10 denotes a heater for drying, which heats the dehumidified air by supplying water from the connecting water supply valve 5 and blows it into the drum 1. Reference numeral 11 denotes a pressure hose, which connects the tap to the connection water supply valve 5. Water is contained in the pressure hose 11, and when the temperature is low, the water freezes and the washing machine becomes unusable. Therefore, when there is a possibility of freezing, the pressure hose 11 is detached from the faucet.

FIG. 4 is a sectional view of a detergent case 4 which is connected by a hose 12 to a connecting water supply valve 5 and has a small hole 1 in the inner surface of the case.
By pouring water toward the detergent set on the inclined surface 14 from 3, the detergent flows in the arrow direction 15 and flows into the drum 1.

[0005]

However, in the conventional construction, if the water in the pressure hose 11 is removed from the water tap to prevent freezing and set again when the water is used again, air enters the pressure hose 11 and the water is supplied from the water tap. When the water pressure is directly applied to the air in the pressure source 11 and the water supply is started, the air compressed by the water pressure blows into the detergent case 4 to blow off the detergent set in the inside. For this reason, the blown-off detergent does not flow into the drum 1 due to the supply of water, is not used for washing, and causes a decrease in washing performance. The detergent remaining in the detergent case 4 generates mold due to various bacteria in the air.

An object of the present invention is to solve the above-mentioned problem, and an object of the present invention is to smoothly flow a detergent in a detergent case into a drum.

[0007]

As a means of the present invention for solving the above-mentioned problems, water is supplied to a water-cooled heat exchanger at the start of washing in a drum type washer / dryer, and then a connection water supply valve is switched. By supplying water to the detergent case side, the detergent in the detergent case flows smoothly to the drum.

[0008] By means of the present invention, the air compressed and compressed by the water pressure remaining in the pressure hose is first released to the water-cooled heat exchanger side, so that the air in the pressure hose is set in the detergent case. The scattered detergent is scattered to reduce the washing effect of washing and prevent the generation of mold by the scattered detergent.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION
A water receiving tank containing a drum that is driven to rotate around a horizontal axis, a motor that drives the drum, and a connection water supply valve that supplies water to the drum through a detergent case and can also supply water to a water-cooled heat exchanger. The connecting water supply valve operates to supply water into the water receiving tank via a water-cooled heat exchanger immediately after the start of washing, and then to supply water to the drum via the detergent case by switching the connection water supply valve. With the configuration, the air compressed and compressed by the water pressure remaining in the pressure hose can escape to the water-cooled heat exchanger side first, and the air set in the detergent case is scattered by the air in the pressure hose. It is possible to reduce the washing effect of washing and prevent the generation of mold due to the scattered detergent.

According to a second aspect of the present invention, there is provided a water receiving tank containing a drum which is driven to rotate about a horizontal axis, a motor for driving the drum, and water supplied through the detergent case into the drum. A connected water supply valve capable of supplying water to the water-cooled heat exchanger is also provided. The connected water supply valve supplies water into the water receiving tank via the water-cooled heat exchanger immediately after the start of washing, and then supplies water from the connected water supply valve to the detergent case side. By operating as described above, in addition to the invention according to claim 1, since the tap water having a high pressure at the start of water supply and strong momentum directly hits the detergent, the detergent in the detergent case is not blown off by the water,
The amount of detergent that dissolves in the washing water can be reduced, and the generation of mold due to the scattered detergent can be prevented.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. The structure of the drum type washer-dryer of the present invention is the same as the conventional one shown in FIGS.

A water receiving tank 2 containing a drum 1 driven to rotate about a horizontal axis, and a motor 3 for driving the drum 1
A connection water supply valve 5 for supplying water through the detergent case 4 to the inside of the drum 1, and starting water supply from the connection water supply valve 5 at the time of washing, and flowing the detergent set in the detergent case 4 into the drum 1. Then, the clothes in the drum 1 are made to contain the detergent liquid, and the drum 1 is rotated left and right to wash the clothes. The connection water supply valve 5 passes through the water-cooled heat exchanger 6 and flows into the water receiving tank 2. Reference numeral 7 denotes a drying fan motor, and a drum 1 for drying.
The high-humidity air inside is turned by the fan 8 and drawn into the water-cooled heat exchanger 6, and dehumidified by the water supply from the connection water supply valve 5.
This water enters the water receiving tank 2 and is drained through the pump 9. Reference numeral 10 denotes a drying heater, which heats the air after dehumidification by supplying water from the connection water supply valve 5 and blows the air into the drum 1. Reference numeral 11 denotes a pressure hose, which connects the tap to the connection water supply valve 5.

In the drum type washer / dryer of this embodiment, FIG.
As shown in (1), at the start of washing, first, the connecting water supply valve 5 is communicated with the water-cooled heat exchanger 6 side, and the air pressurized and compressed by the water pressure remaining in the pressure hose 11 escapes to the water-cooled heat exchanger 6 side. . There is no problem even if this air is discharged to the water-cooled heat exchanger 6 side, and the water flowing to the water-cooled heat exchanger 6 side is also used for washing after the water supplied into the water receiving tank 2 is used for washing. It will not be done. And then, FIG.
By switching the connection water supply valve 5 to the detergent case side as shown in (1), water is supplied to the detergent case 4, the detergent is poured into the drum 1, and the subsequent washing process is performed.

In this embodiment, the configuration has been described in which the water supply to the water-cooled heat exchanger 6 and the detergent case 4 is completely switched. However, immediately after the water supply, water is supplied only to the water-cooled exchanger 6 and thereafter water is supplied to both. In such a case, it is conceivable that both water is supplied only for a predetermined time, and thereafter only the detergent case is supplied.

[0015]

According to the first aspect of the present invention, the air pressurized and compressed by the water pressure remaining in the pressure hose is first released to the water-cooled heat exchanger side, whereby the pressure in the pressure hose is reduced. The detergent set in the detergent case is scattered by the air, so that the washing effect of washing can be reduced and the generation of mold due to the scattered detergent can be prevented.

According to the second aspect of the present invention, since the detergent in the detergent case is not scattered by vigorous tap water at the start of water supply, the washing effect of washing is reduced, and the mold scattered by the scattered detergent is reduced. Occurrence can be prevented.

[Brief description of the drawings]

FIG. 1 is a diagram showing a part of a washing process of a drum type washing and drying machine according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a drum type washing and drying machine showing an embodiment of the present invention.

FIG. 3 is a side view of a drum type washer / dryer showing an embodiment of the present invention.

FIG. 4 is a cross-sectional view of a detergent case of the drum type washing and drying machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drum 2 Water receiving tank 3 Motor 4 Detergent case 5 Connected water supply valve 6 Water-cooled heat exchanger

Claims (2)

[Claims] 1. A water receiving tank containing a drum that is driven to rotate around a horizontal axis, a motor that drives the drum,
A connection water supply valve that supplies water through the detergent case into the drum and can also supply water to the water-cooled heat exchanger.The connection water supply valve supplies water into the water receiving tank via the water-cooled heat exchanger immediately after the start of washing. And a drum type washer / dryer that operates to supply water to the drum via the detergent case by switching the connection water supply valve thereafter. 2. A water receiving tank containing a drum that is driven to rotate about a horizontal axis, a motor that drives the drum,
A connected water supply valve that supplies water through the detergent case into the drum and can also supply water to the water-cooled heat exchanger.The connected water supply valve supplies water into the water receiving tank only via the water-cooled heat exchanger immediately after the start of washing. A drum type washer / dryer that operates to supply water from the connected water supply valve to the detergent case.