JPS5819294A - Garment dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a clothes dryer, and particularly to a clothes dryer that is suitable for drying a large amount of clothes, has high volumetric efficiency, and has high heat source utilization efficiency.

A conventional clothes dryer with a drum has a cylindrical drum with bottoms on both sides placed inside a rectangular parallelepiped outer frame, which is rotated to guide hot air from a heat source into the drum to remove the items to be dried. This device is used to dry clothes, but since a cylindrical drum is placed inside a rectangular parallelepiped-shaped outer frame, the four corners of the outer frame become dead space, and the effective volume occupied by the drum is divided by the volume of the outer frame. It is small at about 55 inches, and when increasing the capacity of a clothes dryer, it was necessary to increase the size of the outer frame. ! In addition, for clothes dryers with the same capacity, it has been desired to make them more compact due to household circumstances, but this has not been possible with conventional configurations. Furthermore, conventional clothes dryers dry clothes using only hot air, that is, heat propagation through forced convection of air, which has the disadvantage that the thermal energy of the heat source is not fully utilized. was there.

One object of the present invention is to provide a clothes dryer that overcomes the above-mentioned drawbacks of the prior art and maximizes the effective volume occupied by the drum with respect to an outer frame of the same size.

Another object of the present invention is to provide a clothes dryer with improved utilization efficiency of thermal energy possessed by a heat source.

In order to achieve the former objective, the present invention makes the cylindrical surface of the drum flexible in order to utilize the dead space at the four corners that is not available in conventional cylindrical drums that exist within the rectangular parallelepiped outer frame. The drum is made of a material having a non-circular cross section, and a power source, heat source, etc. is arranged at one of the four corners of the outer frame. Furthermore, in order to achieve the latter objective, in the present invention, the drum cylindrical surface is made of a material having light transparency and air permeability, such as wire mesh, and a far-infrared heater is used as the heat source. In this way, the thermal energy of the heat source is applied to the clothes to be dried by both direct radiation and propagation through forced convection of air, thereby increasing the utilization efficiency of the thermal energy of the heat source.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a clothes dryer according to the present invention will be described below with reference to the drawings. 1 is a front view of the embodiment, FIG. 2 is a sectional view taken along the line A0-B in FIG. 1, and FIG. 3 is a partial sectional view taken along the line OC in FIG. In the figure, reference numeral 10 denotes an outer frame, in which a drum having an openable and closable clothes input port 12 for inputting clothes to be dried is provided.

The drum is composed of a drum section 20 forming a drum cylindrical surface, and a drum rear section 24 and a drum front section 28, which are respectively fixed to the outer frame 10. The drum portion 20 is made of a material that is flexible and has light transmittance and air permeability.
For example, the drum is made of a material such as a wire mesh, and has several lids 2.2 for stirring the clothes placed inside the drum.

The drum section 20 is rotatably supported by a rear drum receiver section 26 provided on the drum rear surface section 24 and a front drum receiver section 30 provided on the drum front surface section 28.
It is driven by an electric motor 40 via a transmission mechanism such as the following. As shown in FIG. 1, the electric motor 40 and the power source 50 are arranged at one of the four corners of the rectangular parallelepiped-shaped outer frame 10. At the other three corners of the outer frame 10, the drum parts 20 extend to the vicinity of the outer frame 10, and the rear drum holder is connected to the part 26 and the front drum so that the drums i and zo have such a shape. Uke is part 30
The shape of is determined. The drum section 20 is rotated by an electric motor 40 via a drive wheel 42 while sliding along the shapes of the rear drum receiver section 26 and the front drum receiver section 30.

Next, dry heat will be explained. As shown by the arrow in the figure, the outside air for drying is guided from an intake port 62 having an intake filter 60 to a heat source, and flows into the drum as hot air.
Clothes in the drum are dried, and the exhaust air passes through an exhaust filter 64 provided on the drum front part 28 and is accelerated by an impeller 68 in a blower device 66 driven by an electric motor 40.
The exhaust lower 2 is discharged to the outside of the machine through the exhaust pipe 70.

Here, as the heat source 50, a far-infrared heater 52 having a large amount of far-infrared components is used. This is because, as shown in FIG. 4, the energy intensity of wavelengths of 4 to 50 microns is high and is well absorbed by the moisture in the material to be dried, so that the efficiency of the heat source becomes high. Further, the heat source 1j has a reflector plate 54 made of an aluminum plate, a stainless steel plate, etc., in order to concentrate the far infrared rays emitted from the far infrared heater 52 onto the drum part 20, so that the radiant heat is effectively directed to the drum part 20. It is configured to work. - In this embodiment described above, the electric motor 40 and the heat source are arranged at one of the four corners of the outer frame 10, and the remaining three corners are used as the effective volume of the drum, so compared to the conventional product. The volumetric efficiency has been increased from 55% to 75%, and therefore, with the same drying capacity as the conventional product, the volume of the outer frame can be reduced by 38%. Since the blower device 66 is placed on the drum front section 28, the drum section 20 is
The drive transmission to and the drive transmission to the blower device 66 are simplified and made compact. Further, a far infrared heater 52 is used as a heating element for the heat source, and
Since the 0 is made of a material that is transparent to light and air, radiant heat that is effective for evaporating moisture in the clothes directly acts on the clothes in the drum, while the air blower 66 directs the radiant heat into the drum by forced convection. Since there is little loss in the introduced hot air due to heat radiation, etc., the drying efficiency is greatly improved.

As explained above, according to the present invention, in a clothes dryer, by employing a non-cylindrical drum, the four corners of the outer frame, which were conventionally dead spaces, can be used, thereby increasing volumetric efficiency in the same outer frame. is increased by 61% compared to conventional products,
It is possible to increase the drying capacity in the future without changing the size of the outer frame, and standard capacity clothes dryers can be made more compact than conventional products. In addition, the drum part is made of a material that has light transparency and air permeability,
By using a far-infrared heater as a heat source, drying efficiency can be significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of a clothes dryer according to the present invention;
Fig. 2 is a sectional view taken along A-0-B' in Fig. 1, Fig. 3 is a partial sectional view showing the OC section in Fig. 1, and Fig. 4 is a relative view of the wavelength of the heat source used in the present invention. It is an energy intensity distribution map. DESCRIPTION OF SYMBOLS 10... Outer frame, 12... Clothes input slot, 20... Drum part, 22... Lifter, 24... Drum rear part,
26... Rear drum support part, 28... Drum front part,
30... Front drum support is part 5, 40... Electric motor, 42
... Drive vehicle, ■ ... Heat source, 52 ... Far infrared heater, 54 ... Reflector, 60 ... Intake filter, 62
...Intake port, 64...Exhaust filter, 66...Blower, 68...Impeller, 70 1st port 2 port 0, 3 and 4th port infrared skin flea ()L )

Claims (1)

[Claims] 1. A drum rotatably supported within a rectangular parallelepiped outer frame and rotated by an electric motor via a transmission mechanism such as a drive wheel; A clothes dryer that includes a heat source for sending a reservoir, a blower device driven by the electric motor that discharges hot air from the heat source via the drum, and the electric motor in an outer frame, wherein the drum is flexible. The drum cylinder is composed of a drum cylindrical surface made of a material having properties, and a plate-shaped drum front and drum rear surfaces each having a receiving part for receiving the drum cylindrical surface and each fixed to an outer frame. A clothes dryer characterized in that a surface portion rotates along the receiver portion. 2. In the clothes dryer according to claim 1, the shape and arrangement of the drum cylindrical surface portion are such that at least one of the four corner spaces formed by including the edge parallel to the drum axis of the outer frame is A clothes dryer characterized in that the shape and arrangement of the drum are determined so that it is effectively used as part of the internal volume of the drum. 3. In the clothes dryer according to claim 1, the drum cylindrical surface portion is formed of a flexible material having light transparency and air permeability, and the heat source is configured using a far-infrared heater, A clothes dryer characterized in that the radiant heat of the far-infrared heater acts on the clothes in the drum through the drum cylindrical surface.