JP3206028B2 - Clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates, is relates to the dehumidification type of clothes dryer for home use.

[0002]

2. Description of the Related Art Clothes dryers include a so-called exhaust type in which air after drying clothes is exhausted, and a so-called dehumidifying type in which air after drying clothes is circulated and dehumidified. The former has a shorter drying time than the latter, but has the drawback of exhausting high-temperature, high-humidity air into the room, and the latter does not exhaust high-temperature, high-humidity air into the room, but has the disadvantage of requiring a relatively long drying time.

[0003]

SUMMARY OF THE INVENTION The present invention is to solve such a conventional problem. That is, in the dehumidification-type clothes dryer, when the drying operation of the clothes is near the end of the period and the dehumidifying water is almost discharged, a part of the air circulation path is opened to the atmosphere, and the moist circulating air is released to the atmosphere. , To reduce the drying time. Furthermore,
When the amount of clothes is small or when the clothes are to be dried (with low wetness), dehumidification water is hardly discharged, so open part of the air circulation path to the atmosphere from the beginning of the drying operation and dry. To reduce the time.

[0004]

SUMMARY OF THE INVENTION The present invention cools and dehumidifies air containing water vapor discharged in the process of drying clothes.
The dehumidified air into the drum via the air circulation path.
Air from a so-called dehumidifying clothes dryer that is heated and sent in
Means for releasing the air in the air circulation path to the atmosphere in the circulation path
Is provided. And specifically, the hand
It has an opening valve that opens to the atmosphere as a step. Also, remove
Air circulation when almost no wet water (condensed water) is discharged
The air in the path is configured to be open to the atmosphere.
Furthermore, the temperature of the circulating air in the air circulation path rose sharply.
At this point, the air in the air circulation path is released to the atmosphere.
ing. In addition, the first drying operation depends on the amount of clothes in the drum.
From the air cycle to release the air in the air circulation path to the atmosphere.
It has a configuration having means for changing.

[0005]

According to the present invention, the air in the air circulation path is released to the atmosphere when the dehumidifying water (condensation water) is almost exhausted near the end of the clothes drying operation.
As the opening valve as a means to open is opened to the atmosphere, the amount of dehumidifying water is slightly reduced, but the circulating air is released to the atmosphere, so the drying time can be reduced compared to the conventional dehumidifying clothes dryer. It is like.

Further, the point at which the dehumidified water is almost completely discharged is detected by a temperature change in the air circulation path, and the opening valve is automatically opened to the atmosphere.

In the case of a small amount of clothes or finish drying, the drying operation can be performed by opening the opening valve to the atmosphere from the beginning of the drying operation.

[0008]

FIG. 1 is a cross-sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a temperature curve diagram of a thermistor portion in an air circulation path, and FIG. 3 is a circuit diagram of the same.

1 and 3, a rotary drum 1 and a heat exchange fan 2 are driven to rotate by a motor 3. The heat exchange fan 2 is made of a plastic thin film formed on both sides in a bellows-like shape, and circulating air a with high humidity after drying clothes flows inside the heat exchange fan 2 and outside cooling air b outside. Circulates, and high-humidity circulating air a is cooled and dehumidified. The heater 4 heats the dehumidified circulating air a,
Dry air c is produced and sent into the drum 1 to dry the clothes 5.

The circulating air a passes through the air circulating duct 6, and the condensed water generated by dehumidification drops from the drain port 7 below the air circulating duct 6 and is discharged as dehumidified water. A thermistor 8 for detecting the temperature of the circulating air a is installed in the air circulation duct 6. As shown in FIG. 1, an electromagnetically operated release valve 9 is provided at an intermediate front position of the air circulation duct 6, and the release valve 9 is slid in the direction of the arrow in FIG. Some are exhausted. Since the heat exchange fan 2 continues to rotate, the air enters the remaining circulating air a at the opening valve 9,
Circulating air “a” circulates from the heater 4 to the rotating drum 1. The drying operation of the clothes dryer is controlled by the controller 10. 11 is a filter.

Next, the operation will be described. In the case of normal clothes drying, pressing a "standard drying" button (not shown) of the controller 10 starts a "standard drying" operation.
When the drying progresses and the drainage of the dehumidifying water almost disappears,
Temperature curve A of thermistor 8 in FIG. 2 is stable for about 1 hour
P which turned upward from the temperature that was
When the point is reached, the opening valve 9 is opened under the control of the controller 10. Then, a part of the circulating air a is exhausted,
The atmosphere is mixed for In this manner, the temperature curve follows the two-dot chain line P to Q in FIG. 2, and the drying is completed at the Q point, as compared with the conventional drying (ending at the R point of the P to R curves in FIG. 2).
You can save time.

Further, in the case of a small amount of clothes, or in the case of finish drying with a low degree of wetness of the clothes, pressing the "small amount drying" button or the "finishing drying" button (not shown) of the controller 10 causes the control of the controller 10 to proceed. As a result, the drying operation is performed by opening the opening valve 9 from the beginning of drying.
Following the drying temperature curves 0 to S, the drying can be performed in a shorter time as compared with the drying temperature curves 0 to T in the case where the opening valve 9 is closed and the drying is performed from the beginning of the drying. At this time, the release valve 9 is manually
The same effect can be obtained with a simple configuration if opened.

[0013]

As described above, according to the present invention, the drying time of a dehumidifying type clothes dryer can be shortened. Ingredient
Physically, in the case of normal clothes drying, the controller 10
Press the "Standard drying" button (not shown) to start the "Standard drying" operation, but release the air in the air circulation path to the atmosphere when the dehumidified water (condensation water) is almost exhausted.
As the opening valve as a means to open is opened to the atmosphere, the amount of dehumidifying water is slightly reduced, but the circulating air is released to the atmosphere, so the drying time can be reduced compared to the conventional dehumidifying clothes dryer. . Further, the point at which the dehumidified water is almost completely discharged is detected by a temperature change in the air circulation path, and the opening valve is automatically opened to the atmosphere, which is convenient. In addition, in the case of a small amount of clothes or finish drying with little wetness of the clothes, the opening valve can be opened to the atmosphere from the beginning of the drying operation and the drying operation can be performed, so the time is greatly reduced compared to the conventional dehumidification drying operation. Is now possible.

[Brief description of the drawings]

FIG. 1 is a sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is a temperature curve diagram of a thermistor section in an air circulation path of a clothes dryer according to one embodiment of the present invention.

FIG. 3 is a circuit diagram of a clothes dryer according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating drum 2 Heat exchange fan 3 Motor 4 Heater 5 Clothing 6 Air circulation duct 7 Drainage port 8 Thermistor 9 Opening valve 10 Controller 11 Filter

Claims (4)

(57) [Claims] An electric system for cooling and dehumidifying air containing water vapor discharged in a process of drying clothes in a drum, and heating and sending the dehumidified air into the drum through an air circulation path. Clothes dryer, wherein the air circulation path has opening means for releasing air in the air circulation path to the atmosphere, and a part of the air in the air circulation path is exhausted through the opening means, and the remaining Atmosphere is mixed with the air in the air circulation path, and the mixed air in the air circulation path is discharged.
A clothes dryer characterized by being heated and sent into a ram . 2. The clothes dryer according to claim 1, wherein a part of the air in the air circulation path is released to the atmosphere when the dehumidifying water is almost discharged. 3. The clothes dryer according to claim 1, wherein a part of the air in the air circulation path is released to the atmosphere when the temperature of the circulating air in the air circulation path rises sharply. 4. The amount of clothes in the drum or drying of clothes.
Select the operation mode depending on the degree and switch to the selected operation mode.
Clothes dryer according to some of the air drier initial operation from the air circulation path to claim 1, characterized in that the opening to the atmosphere.