JPH03236900A - Dryer for clothes - Google Patents

Abstract

PURPOSE:To collect fine dust by forming a dust collecting circulation passage independently of an air circulation passage, and providing a dust collecting filter, and circulating heated air in a heated air circulation passage during drying operation so as to dry clothes, and circulating air alternately through the heated air circulation passage and the dust collecting circulation passage after drying operation is finished. CONSTITUTION:Electricity is transmitted to a heater and a main motor is driven and a rotary drum is rotated and at the same time an air blowing fan is driven and air is introduced into a heated air circulation passage so that clothes are dried. Electricity is stopped to the heater and the main motor and a dust collecting motor 16 are alternately driven at intervals of a relatively short time. When only the main motor is driven very fine dust and carcasses of ticks, etc., attached to the clothes float inside the rotary drum. When the main motor is stopped and the dust collecting motor 16 is driven air inside the rotary drum is introduced into a dust collecting circulation passage 13 and dust is collected by a dust collecting filter 17. This alternate operation is repeated several times and fine dust attached to the clothes is collected by the dust collecting filter 17.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a clothes dryer in which a rotating drum is provided with a warm air circulation path for circulating warm air and a filter for collecting fine dust.

<Conventional technology> FIG. 3 is a sectional view of essential parts of a conventional air conditioner.

In FIG. 3, 1 is a main body, and on the front side of this main body 1 is a door 2 that opens and closes a slot for putting in clothes.
is provided. Reference numeral 3 denotes a rotating drum provided within the main body 1, which is rotatably driven by a drum belt 5a driven by a main motor 4. Reference numeral 6 denotes a heat exchange type blower fan provided behind the rotating drum 3. This blower fan 6 is sealed with a sliding part 6a provided on the main body 1 side, and partitions a passage into a drum side passage a and an outside air side passage, and is connected to the main motor 4. It is designed to be rotationally driven by a fan belt 5b. 7 is a filter provided in an exhaust hole 8 provided on the back surface of the rotating drum 3. 9
is a warm air circulation path that communicates the drum side passage a with a hot air outlet 10 provided at the lower front surface of the rotating drum 3.

This hot air circulation path 9 is arranged on the front side of the main body from the back side of the main body through the lower part of the rotating drum 3. A heater 11 is provided near the hot air outlet IO, and a heater 11 is provided in the vicinity of the hot air outlet IO. A drain hole 12 is provided through which drain water dehumidified by the heat exchange type blower fan 6 is discharged.

The operation of the clothes dryer having the above configuration will be described. By driving the main motor 4, the rotary drum 3 is driven to rotate and the blower fan 6 is also driven to rotate. When the heater 11 is energized, the air inside the rotating drum 3 sucked by the blower fan 6 passes through the filter 7 and is introduced into the drum side passage a.
After being heated, the warm air is supplied from the warm air outlet 10 into the rotating drum 3, and the warm air dries the clothes. At this time, the blower fan 6 also introduces and exhausts outside air in the outside air side passage, but since this drum side passage a and the outside air side passage are in contact with each other,
Here, heat exchange is performed, and the air in the drum side passage a is cooled and dehumidified and becomes dry air on the rotating drum 3.
will be supplied to On the other hand, in the outside air side passage a, cold outside air is introduced to cool the air in the drum side passage a.

Now, by circulating dry warm air like this, the clothes placed in the rotating drum 3 are dried, but as the clothes dry, fine dust and lint attached to the clothes are removed. etc. gradually begin to dance inside the rotating drum. Such fine dust is captured by the filter 7 before being introduced into the drum side passage a, but although relatively large dust and lint can be captured by the filter 7, Very fine garbage and dead bodies such as mites cannot be easily captured. If the mesh of the filter 7 is made even finer in order to capture this fine dust, the fine dust will be captured, but it will easily become clogged, and the mesh of the filter 7 cannot simply be made finer.

<Problems to be Solved by the Present Invention> In conventional clothes dryers, the filters are formed with a coarseness that prevents clogging, and only what can be captured is captured. It was not possible to capture very fine dust such as mites or dead mites. For this reason, there is a possibility that these fine particles, dead mites, etc. may adhere to clothing again.

An object of the present invention is to enable the capture of very fine dust such as fine dust and dead mites.

Means for Solving the Problems> In order to solve the above problems, the present invention provides a rotating drum with a hot air circulation path for circulating hot air and a filter for collecting fine dust. Separately from the circulation path, a dust collection circulation path is formed to circulate the air inside the rotating drum, and a fine-mesh dust collection filter is installed in this dust collection circulation path, and during drying operation, hot air is circulated through the hot air circulation path. At the same time, after the drying operation is completed, air is alternately circulated through the hot air circulation path and the dust collection circulation path.

Function: When drying clothes, hot air is supplied to the rotating drum through the hot air circulation path to dry the clothes. Fine dust and the like generated during this drying operation will be collected by a filter.

When the drying of the clothes is finished, very fine particles that have adhered to the clothes and cannot be collected by the above-mentioned normal filters will float inside the rotating drum.
After such drying is completed, air is circulated alternately through the hot air circulation path and the dust collection circulation path, so the very fine dust that has separated from the clothes is removed by the air flowing through the hot air circulation path. When air flows through the dust collection circuit, it is inserted into the dust collection circuit and is captured by the dust filter in the dust collection circuit.

<Example> Embodiments of the present invention will be described below with reference to the drawings.

Incidentally, the same parts as those in the prior art are given the same reference numerals, and the description thereof will be omitted.

FIG. 1 is a rear view of an embodiment of the present invention. In FIG. 1, reference numeral 13 denotes a dust collection circulation path provided to communicate between two parts of a drum guide 14 provided on the back side of the main body l. This dust collection circulation path 13 is provided with a dust collection blower fan 15 and a dust collection motor 16 for circulation, and also captures extremely fine dust, dead mites, etc. that cannot be collected by the filter 7. A dust collection filter 17 is provided that can be used to remove dust.

The operation of the clothes dryer will be explained using the time chart shown in FIG.

First, the door 2 is opened and wet clothes are put into the rotating drum 3, and the door 2 is closed again to start operation. When the operation is started, as shown in FIG. 2, the heater 11 is energized and the main motor 4 is energized. When the main motor 4 is driven, the rotary drum 3 rotates and tamps the clothes inside, and at the same time, the blower fan 6 is driven so that the air inside the rotary drum 3 is introduced into the hot air circulation path 9. The air then passes through the heater 11 and is supplied to the rotating drum 3 as high-temperature warm air.

When high-temperature warm air is supplied to the rotating drum 3 in this way, the moisture in the tamped clothing gradually evaporates and the clothing is dried. The moisture contained in the clothes is dehumidified by the heat exchange type blower fan 6 and discharged from the drain port 12. Such a drying operation requires 2 to 3 hours to dry a relatively large item.

When the clothes are almost dry in this way (it does not have to be completely dry, but it is dry enough that very fine dust etc. are generated), the completion of drying is detected by an appropriate detection means and the next alternating operation is started. do.

As shown in FIG. 2, this alternate operation is performed by turning off the heater 11 and driving the main motor 4 and the dust collection motor 16 alternately at relatively short intervals. However, first, only the main motor 4 is driven. This means that immediately after the heater 11 is turned off, the rotating drum 3
This is to prevent the dust collecting filter 17 in the dust collecting circulation path 13 from being deteriorated due to the high temperature air coming into contact with the dust collecting filter 17 inside the dust collecting circulation path 13 when the inside is in a relatively high temperature state.

When only the main motor 4 is driven in this way, very fine dust, dead mites, etc. adhering to clothing will float inside the rotating drum 3 due to the tamping of the rotating drum 3. The air inside the rotating drum 3 containing this floating fine dust is then introduced into the dust collection circuit 13 by stopping the main motor 4 and driving the dust collection motor 16. The dust is captured by a dust collection filter 17 provided inside the dust collection filter 13. By repeating this alternating operation several times, very fine dust adhering to and floating on clothing will be captured by the dust collecting filter 17 each time. This alternating operation is repeated several times to completely complete the drying process.

As mentioned above, during the drying operation until very fine dust is generated, the filter 7 provided on the rotating drum 3 captures the dust, so drying can be performed without clogging the filter 7. can. When this drying is almost completed, extremely fine dust and dead mites that cannot be captured by the filter 7 as described above are captured by the dust collecting filter 17 through the alternating operation.
Prevent these fine dust from adhering to clothing again.

<Effects> According to the present invention, even very fine dust can be captured by the dust collection filter without clogging the filter, and it is possible to prevent these fine dust from adhering to clothing again. .

[Brief explanation of drawings]

Fig. 1 is a rear view of the embodiment of the present invention, Fig. 2 is a time chart of the embodiment of the present invention, and Fig. 3 is:
A sectional view of a conventional device. 3: Rotating drum, 13: Dust collection circulation path, 17; Dust collection filter

Claims (1)

[Scope of Claims] 1. In a rotating drum in which a hot air circulation path for circulating hot air is formed and a filter for collecting fine dust is provided, the air in the rotating drum is circulated separately from the circulation path. A fine-mesh dust collection filter is installed in this dust collection circulation path, and during drying operation, hot air is circulated through the hot air circulation path for drying, and after the drying operation is completed, the hot air is A clothes dryer that circulates air alternately through a wind circulation path and a dust collection circulation path.