JP4186011B2 - Drum type clothes dryer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement of a clothes dryer, and more particularly to a drum-type clothes dryer in which a drum for drying stored clothes and the like is a heat storage system.
[0002]
[Prior art]
Conventional clothing dryers produce warm hot air that is heated by a heater provided in a ventilation passage through the air taken in from outside air by a blower such as a fan, and the hot air is fed into a rotating drum. The clothes stored in the bag are dried.
By rotating the drum, the clothes in the drum are agitated and uniform drying is performed.
In this type of clothes dryer, there is a demand for shortening the drying time, and there is a method for increasing the amount of warm air blown as a method for shortening the drying time. As a countermeasure, it is necessary to increase the heater rating by increasing the heater heat generation, and a clothes dryer using a heater having a positive temperature coefficient has already been proposed. (For example, refer to Patent Document 1.)
In this clothes dryer, the heater temperature is lowered by increasing the air flow rate, but since the heater itself has a positive temperature coefficient, the heater itself has a lower resistance value due to the lowering of the heater temperature. As the current increases, the amount of heat generated by the heater increases.
However, when this clothes dryer is used as it is in ordinary households, a large current flows as the installed power breaker is activated, so that the amount of blown air cannot be increased unless the capacity of the electrical equipment is increased. There was a point.
As a further improvement, a clothes dryer has been proposed in which a heat accumulator is provided in the ventilation path, and the heat generated by preheating the heat accumulator is used together to increase the amount of heat generated by the heater and shorten the drying time. ing. (For example, see Patent Document 2.)
[0003]
[Patent Document 1]
JP-A-3-284299 (page 1-2, FIG. 3)
[Patent Document 2]
Japanese Patent Laid-Open No. 7-28997 (page 2-3, FIG. 1)
[0004]
[Problems to be solved by the invention]
In this clothes drier, hot air having a temperature higher than that at the start of the drying operation can be sent into the drum by the heat storage body that has been heated and kept at a predetermined temperature or higher in advance, and the drying time can be shortened.
However, this clothes dryer requires a heat storage heater for heating the heat storage body in advance and a main heater such as a PCT heater, and there is a problem that the apparatus itself is increased in size and cost.
The present invention has been made to solve the above-mentioned problem, and a garment that can efficiently dry clothes, etc., by using a heat storage system as a drum for storing and drying clothes. It is to provide a dryer.
[0005]
[Means for Solving the Invention]
The present invention has been made to solve the above-mentioned problems, and in a drum-type clothes dryer in which clothes are stored in a rotating drum and dried, the rotating drum is the same drum as the drum itself made of a heat storage material. A drum-type clothes dryer comprising a heater built in the heater for heating the drum.
Note that the 蓄 Netsutai scheme illustrates one which formed the drum itself in thermal storage material.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings.
Note that the clothing and the like referred to in the present invention includes a blanket, a sheet, a towel, a cover, and the like in addition to clothing, and the same components are given the same reference numerals in the drawings.
[0010]
FIG. 1 and FIG. 2 show an embodiment of the present invention, and are a sectional view and an explanatory view of a clothes dryer when the drum itself is made of a heat storage body.
Reference numeral 1 denotes a clothes dryer according to the present invention, in which a drum 3 formed of a substantially cylindrical heat storage body 7 is provided in an outer box 2 made of a substantially rectangular parallelepiped resin or metal.
The drum 3 is rotatably supported by a drum support 2c having an opening 3b on the front surface provided in a clothing insertion opening 2a of the outer box 2, and is provided on a protruding portion 3c on the rear surface of the drum 3. The bearing portion 3d is rotatably supported by a bearing portion 16 fixed to the outer box 2.
[0011]
As shown in FIG. 2, the drum is made of an animal heat material such as ceramics, metal, resin such as high-density polyethylene, and has a plurality of heaters 4 built therein. Is configured to be heated.
[0012]
As shown in FIG. 1, a protrusion 3 c is provided on the rear surface of the drum 3, and two ring electrodes 3 a electrically connected to the heater 4 and a ring part 3 e are provided on the protrusion 3 c. .
The ring electrode 3a is electrically connected to the power supply for the heating device of the control unit 21 by the brush electrode 14, and the heater 4 is controlled to be turned on and off by the control unit 21.
The ring portion 3e is connected to a transmission mechanism 11 composed of a belt or the like, and transmits the rotation of the motor 8 that is fixed to the outer box 2 and can be rotated in the forward and reverse directions to the drum 3. It is designed to rotate.
[0013]
At the center of the rear surface of the drum 3, a moisture exhaust port 9 is provided for exhausting the air inside the drum 3 containing moisture to the outside of the machine, and the air containing moisture is exhausted connected to the moisture exhaust port 9. It is discharged to the outside of the machine via the road 5.
A filter 13 is provided at the entrance of the moisture exhaust port 9, and an intake port 2 b is provided at the drum support 2 c so that air is supplied into the drum 3.
[0016]
4 and 5 are explanatory views showing another embodiment of FIG. 3, and in the configuration of FIG.
While providing the ventilation path 24 in the outer peripheral surface of the heat storage body 7, the heat storage body 7 itself has a large number of holes 7a used as a ventilation path, and the drum 3 has a large number of holes 3f. It is different in point.
[0024]
Next, a method for drying clothes and the like will be described by taking an example of washing clothes and drying.
This clothing dryer 1 is used by turning on the power of the operation unit 20 provided with the panel switch provided on the front surface of the outer box 2 before using the dryer to preheat and store the heat storage body 7. To do.
In the case where clothes and the like are washed and dried, when the clothes and the like are started to be washed in the washing machine, the clothes dryer 1 is turned on together.
In response to a command from the control unit 21 using a microcomputer or the like connected to the operation unit when the power is turned on, the heater 4 or the heating device 11 operates to heat the heat storage body 7.
At this time, the heater 4 or the heating device 11 is controlled by the control unit 21 using a temperature sensor or the like so that the heat storage body 7 is not abnormally heated.
[0025]
After the washing is finished, the lid 12 provided on the outer box 2 of the clothes dryer 1 is opened, and the object to be dried 26 such as washed clothes is put into the drum 3 through the opening 3b of the drum 3, Close the lid 12.
When the panel switch of the operation unit 20 provided on the front surface portion of the outer box 2 is operated and drying is started, the motor 8 is rotated by a command from the control unit 21 to rotate the drum 3.
[0026]
At this time, since the heat storage body 7 is preheated and stored by the heater 4 or the heating device 11, a large amount of heat can be obtained from the start of drying, and the drying time can be shortened even if a small rated heater is used. be able to.
Since clothing and the like are accelerated and dried in the rotating drum 3 while repeatedly contacting the inner peripheral surface of the drum 3 heated with the rotation, loss of heat can be reduced by heating the drum 3. , Drying efficiency can be improved.
[0027]
For example, in the case of thin shirts, it is desirable to control the heating temperature of the drum 3 between 40 ° C. and 60 ° C., and the more preferable heating temperature of the drum 3 is about 45 ° C. The temperature of the drum 3 can be controlled by the control unit 21 using the known sensor technology.
The heating temperature is controlled to the optimum temperature depending on the type of clothing and the like, and is not limited to the heating temperature.
[0028]
Further, the control unit 21 may control the temperature by detecting the degree of drying of the object to be dried 26.
Further, the motor 8 may be controlled in accordance with the dry state, and the drum 3 may be rotated alternately in the forward direction and the reverse direction, or the rotational speed may be increased or decreased.
[0029]
Thus, as 蓄 Netsutai method, a structure to form a drum 3 itself at 蓄 Netsutai 7, it is possible to perform 蓄 body 7 heating and the drum 3 for heating one of the heater 4 or the heating device 11 .
Furthermore, since a heater or a heating device having a smaller rating can be used, the cost of the heater or the heating device can be reduced.
[0030]
Further, forcible means such as a fan for exhausting or sucking air into the exhaust passage 5 or the intake passage 6 is added to increase the exhaust amount of the wet air in the drum 3 or to control the exhaust amount. It can also be controlled and discharged according to the dry state at 21.
[0031]
Further, a heat-resistant covering member such as fluorine may be formed on the inner surface of the drum 3 by using a known means such as coating, and the heat-resistant covering member such as fluorine adheres clothing or slides by heating the drum. It is possible to prevent damage to clothing caused by
[0032]
In addition, the wet air in the exhaust passage 5 is connected to the intake passage 6 connected to the intake port 2b via a dehumidifier such as a dehumidifier for removing moisture by a method such as condensation. It is also possible to eliminate the discharge outside the machine.
Further, a heat pump or the like may be provided in the exhaust passage 5 to receive heat from the high-temperature air to be exhausted, to apply the heat to the air in the intake passage 6, and to warm the air that enters the drum 3 from the intake port 2b.
[0033]
【The invention's effect】
Above, since the drum in the present invention was 蓄 Netsutai method, heat is then heated in advance 蓄 the drum, heat large amount of heat of both the heat and the heater of the thermal storage body from the initial time of drying (heating apparatus) to give Therefore, clothes etc. can be dried in a drum in a short time.
In this case, clothing and the like are accelerated and dried while repeatedly touching the inner peripheral surface of the drum heated as the drum rotates, so that the clothes are efficiently dried.
[0034]
In addition, since the heat storage body is preheated by the heater (heating device) as described above, a large amount of heat can be obtained at the start of drying, and it is not necessary to use a large rated heater (heating device). Can be efficiently dried with only one heater (heating device).
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a clothes dryer showing an embodiment of the present invention.
FIG. 2 is an explanatory diagram of the drum shown in FIG.

Claims (1)

In a drum-type clothes dryer for storing clothes and the like in a rotating drum and drying, the rotating drum is composed of a drum made of a heat storage material and a heater for heating the drum built in the drum. A drum type clothes dryer characterized by that.

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