JPH05285299A - Cloth dryer - Google Patents

Abstract

PURPOSE:To generate a hot air vortex and efficiently perform drying by arranging a low-speed rotating motor and a heat source on the bottom part of a box body, attaching a rotating blade to the lower part of a rotating shaft raised from the motor, and hanging and supporting clothes to be dried on the top part of the rotating shaft. CONSTITUTION:A box body 1 is shaped into, for example, a cylinder, a single- opening top cap 9 is installed to the top part, and a low speed rotating motor 2 having a rotating shaft 3 raised thereon is arranged in the center of the bottom part. A rotating blade 4 is attached to the lower part of the rotating shaft 3, and a heat source 5 is arranged on the outer circumference of the motor 2. On the heat reserving side wall 10 of the box body 1, further, an air intake hole 11 is arranged near the bottom part, and an exhaust hole and a drain 12 on the upper part. At use, the top cap 9 is opened, a cloth holding tool 6 from which clothes to be dried are suspended is put in the box body 1, and supported on the top part of the rotating shaft 3. Thereafter, the motor 2 and the heat source 5 are driven and controlled by a power source control board 8, and a hot air vortex is generated to efficiently dry the clothes to be dried.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer, and more particularly to a suspension type infrared clothes dryer.

[0002]

2. Description of the Related Art With the maturation of the electrical equipment market, all-weather household clothes dryers have become popular at a high standard. What is currently put into practical use is a type called a rotary drum system. In this type of dryer, dehydrated clothes stored in a drying chamber are dried by blowing hot air onto the surface of the clothes while rotating them around an axis parallel to the ground by a rotating drum.

This type is characterized in that the surface area of clothes exposed to hot air per unit time is increased by rotation in a drum, and the drying effect is relatively high. On the other hand, however, noise is generated because the drum is rotated during drying of clothes, and vibration is generated due to constant fluctuation of the position of the center of gravity of clothes due to the rotation. Further, there is a problem that the clothes lose their shape or wear during rotation of the drum.

On the other hand, there has been proposed a drier of a type called a suspension type in which clothes to be dried are suspended from the upper part of the drying chamber and infrared rays are irradiated from the surroundings to dry the clothes. This system has already been put to practical use in some commercial futon dryers, etc., but because it achieves its purpose by radiating from the wall of the drying chamber without rotating the material to be dried, noise and vibration are generated. Almost no loss of shape of clothes. In many cases, far infrared rays are used for radiation in order to improve the drying efficiency.

In the conventional hanging-type clothes dryer, in order to shorten the drying time of clothes to be dried, far infrared rays having a high absorption efficiency for water molecules are used for the radiation as described above, and substantially the radiation source is used. We are trying to increase the area of.

For example, the entire floor surface or side wall surface of the drying chamber can be used as a radiation source (Japanese Patent Application No. 59-18774), or hot air from the radiation source plus the upper and lower surfaces can be used (Japanese Patent Application No. 58-180).
041, Japanese Patent Application No. 62-59455, Japanese Patent Application No. 62-1
No. 38792). In addition, there are attempts to circulate hot air to improve thermal efficiency (Japanese Utility Model Application 55-5).
3075).

[0007]

In recent years, the number of single-workers and students has increased in the city, and their living standards have improved. Along with this, there is an increasing number of occasions where clothes are washed and dried in one room of an apartment house at night. In this case, since noise and vibration are avoided, it is preferable that the clothes dryer is a suspension type dryer instead of a rotary drum type.

However, in the above-mentioned conventional suspension type clothes dryer, the structure is complicated to improve the drying efficiency,
Practicality is poor. In addition, in the case of a plurality of suspended clothes to be dried, there is a problem that the rotating drum system in which the water vapor pressure p in the air is higher and it is harder to dry the closer to the center,
It took a long time to dry.

It is an object of the present invention to provide a suspension type clothes dryer having a relatively simple structure and high drying efficiency.

[0010]

SUMMARY OF THE INVENTION The present invention comprises a canopy that can be opened, a heat retaining side wall and a bottom plate, and has a plurality of exhaust holes and drains on the upper side of the heat retaining side wall and a plurality of intake holes on the lower side of the side wall. A housing having a hole, a low-speed rotation motor arranged in the center of the bottom plate in an upward direction, a rotation shaft protruding upward from the motor, and a plurality of infrared rays mounted below the rotation shaft. A radiant rotary blade, a heat source arranged on the bottom plate around the motor to heat the rotary blade from below, and a clothing holder whose center is placed on the top of the rotary shaft,
A clothes dryer including a net-like guard which is arranged apart from the rotary vanes and which is provided above the rotary vanes and has a through hole for the rotary shaft, and a power source control panel which is outside the housing and is connected to supply power to the motor and the heat source. Is provided (Claim 1).

Further, according to the present invention, there is provided a housing having an open canopy, a heat retaining side wall and a bottom plate, having a plurality of exhaust holes and drains at the upper side of the heat retaining side wall and having a plurality of intake holes at the lower side of the side wall. A first low-speed rotation motor having an axis of rotation arranged upward in the central portion of the bottom plate in the housing, and downwardly arranged in the central portion of the canopy in the housing, and an extension line thereof. A second low-speed rotary motor having a rotary shaft having the rotary shaft therein, a plurality of infrared radiation rotary blades attached to the first motor rotary shaft, and a peripheral portion of the first motor on the bottom plate; A heat source for heating the rotary vane from below, a clothing holder attached to the lower end of the second motor rotary shaft, and a first motor rotary shaft of the first motor rotary shaft spaced apart from the rotary vane and arranged above the rotary fan. Reticulated guard having a through hole, and the housing Wherein In the section first provides a clothes dryer including a connected power supply control board for feeding power to the second motor and the heat source (claim 2).

Further, the present invention provides a clothes dryer provided with a perfume holder, which is arranged near the rotary blade or the heat source, is filled with the perfume or the like, and has a plurality of pores on the surface ( Claim 3).

[0013]

The air taken in from the lower part of the housing by the blades is heated by infrared rays and is drawn upward, forming a vortex created by the blades and the clothes to be dried which rotate in synchronization, and escapes to the upper part of the housing. As a result, the water molecules contained in the clothes to be dried absorb infrared rays and evaporate, and the vapor pressure becomes p. The water molecules evaporated in the air inside the housing receive a force by the vortex flow, and shift the concentration distribution from the inside to the outside of the vortex flow. The water vapor that has reached the heat retaining side wall of the housing exhibits a saturation value p _m , rises along the wall surface, condenses in the drain in the upper part of the housing, and is discharged to the outside of the housing. Therefore, as the position close to the center of the vortex reduces the water vapor partial pressure p, is the driving force of the dry (p _m -p)
Will grow.

[0014]

FIG. 1 is a diagram showing an embodiment of the present invention. Figure 1
(A) shows movements of main constituent elements, air, and water vapor during driving of the clothes dryer of the present invention. Figure 1 (B)
1 schematically shows a partial pressure distribution of water vapor in the air in the M-N cross section of FIG. 1A in comparison with the conventional case.

In FIG. 1 (A), a blade B which rotates at a low speed in a plane perpendicular to the side wall A is provided in the lower part of the housing having a vertically long heat retaining side wall. The rotation speed of the blade B is preferably 30 to 6
It is about 0 revolutions / minute, but there is no particular limitation. The diameter of the locus of rotation of the blade B is at least half the diameter of the side wall A of the housing, and preferably 70 to 80% or more.

The blade B is heated by a suitable heat source (not shown) and radiates infrared rays D, preferably far infrared rays, upward from its upper surface. The direction of rotation of the blades B is the direction in which air is drawn upward from below. The air is sucked into the housing from the lower part of the housing.

The clothes to be dried C suspended on the upper part of the casing are rotated at a low speed in synchronization with the rotation of the blades B. As a result, as shown in the figure, the air swirls upward from below to above. Air and water vapor discharge holes are provided in the upper part of the housing. The clothes to be dried C are suspended from the upper part of the housing by operating a canopy (not shown).

If necessary, a fragrance (or deodorant) holder (not shown) is arranged near the blade B, and the fragrance wire F discharged from the holder by heating is placed on an air vortex to be dried. It is also possible to reach the clothes C and impregnate them.

As shown in FIG. 1 (B), the partial pressure p of water vapor in the air in the region crossing the casing along the MN line containing the clothes to be dried C of FIG. 1 (A) is the same as that of the present invention. It is completely different from the conventional case. That is, in the case of the present invention, the water vapor partial pressure distribution becomes concave because the water vapor evaporated from the clothes drifts to the outside of the vortex as shown in FIG.
Highest on the side wall of the housing. (Indicates saturated water vapor pressure p _m ). On the other hand, in the conventional suspension dryer, the water vapor partial pressure is highest in the central portion of the plurality of clothes to be dried, and it is difficult to dry.
In the case of the present invention, the higher the rotational speeds of the clothes to be dried C and the blades B, the lower the water vapor pressure in the central portion.

The operation will be described. As shown in FIG. 1 (A), the air taken in from the lower part of the casing by the blades B is heated by the infrared rays D and extracted upward, forming a vortex created by the blades B and the clothes C to be dried which rotate in synchronization. And then pull out to the top of the case. As a result, the water molecules contained in the clothes to be dried C absorb the infrared rays D and evaporate, and show a vapor pressure p.

The water molecules evaporated in the air in the housing are subjected to a force by the vortex flow, and the concentration distribution is shifted from the inside to the outside of the vortex as shown by E in FIG. 1 (A). Case heat retaining side wall A
The water vapor reaching the temperature reaches a saturation value p _m , rises along the wall surface, condenses in the drain in the upper part of the housing, and is discharged to the outside of the housing. Therefore, the water vapor partial pressure p decreases at a position closer to the center of the vortex, which is a driving force for drying. (P _m -p) increases.

FIG. 2 shows a concrete example. FIG. 3 shows a vertical cross-sectional view of a suspension clothes dryer. In the figure, the housing 1 has a cylindrical shape with a diameter of about 65 cm and a height of about 75 cm, and is provided with a canopy 9 that opens at the top of the head. At the center of the bottom plate 15, a low speed rotation motor A2 with the rotation shaft 3 facing upward is mounted. At the bottom of the rotary shaft 3, the length of one sheet is about 2
Four 5 cm rotary blades 4 are attached. The material is aluminum as a base, and an Al ₂ O ₃ film is formed by surface oxidation. Since Al ₂ O ₃ has a high far infrared radiation efficiency, it is preferable to deposit it by thermal spraying or the like rather than surface oxidation.

A heat source 5 is arranged on the outer peripheral portion of the low-speed rotation motor 2 at the bottom of the housing 1 with a heat insulating material sandwiched between the heat source 5 and the motor 2. The heat source 5 is composed of a sheet heating element having a sheathed heater in a spiral shape, and heats the rotary blade 4 to radiate far infrared rays. The heat retaining side wall 1 near the bottom plate 15 of the housing 1
No. 0 is provided with an air intake hole 11, and a plurality of exhaust holes and drains 12 are provided in the upper heat retaining side wall 10.

The canopy 9 is opened, the clothes holder 6 on which clothes to be dried are suspended is put in the housing 1, and the motor rotating shaft 3
The clothing holder 6 is attached to the top of the head. Between the lower end of the clothes to be dried and the rotary blade 4, a mesh guard 7 made of a cylindrical metal mesh with a diameter of 60 cm is placed. Of course, the cylindrical wire net 7 is provided with a through hole for the motor rotating shaft 3, and does not come into contact with the motor rotating shaft 3.

The heat retaining side wall 10 of the housing 1 is made of a composite material, and has a structure in which a metal layer such as Al is adhered to the inner surface of the housing of a plastic plate with a heat insulating resin or the like.

On the other hand, a power source control panel 8 for supplying electric power to the low speed rotation motor 2 and the heat source 5 is arranged outside the housing 1 and electrically connected to each of them. The power control panel 8 is usually connected to a 100V outlet.

Electric power of 300 to 800 W is usually applied to the heat source 5. This clothes dryer is suitable for drying clothes for a small number of people of about 1 to 3 people. Motor 2 is 30-60 rpm
Since it rotates at the ratio of, the clothes can be dried efficiently without any noise or vibration.

FIG. 3 shows another specific embodiment of the present invention. FIG. 2 shows a vertical sectional view of a suspension type infrared clothes dryer. The main difference in structure from the previous embodiment is that the rotary blade 4 and the motor for low speed rotation of the clothing holder 6 are separate. That is, the rotary blades 4 are driven by the motor 2 placed upward in the center of the casing 1 and the bottom plate 15, while the clothing holder 6 is placed downward in the center of the casing 1 and the canopy 9. Driven by.

The rotating shafts 3 and 14 of the motors 2 and 13 are
Almost on the same vertical line. And the motors 2 and 13 are
It is driven in a state in which the rotation direction and the rotation speed are synchronized. This drive is performed by the power supply control panel 8. As a result, when clothes are dried, the air in the casing 1 is swirled in a swirl that matches the motor rotation speed, is carried from the lower layer to the upper layer, and is discharged. at the same time,
The water vapor emitted from the clothes to be dried shifts the concentration distribution toward the heat retaining side wall 10. Therefore, near the clothes to be dried,
Since closer to the center (p _m -p) increases, the garment-containing water is quickly evaporated from the prior art, quickly and efficiently dried to it can be.

As described above, the suspension clothes dryer of the present invention is characterized in that the distribution of infrared rays and the distribution of generated steam are separated. The clothes dryer of FIG. 3 can generally have a larger diameter, that is, a larger capacity than that of FIG. 2, and accordingly, it can be said that it is suitable for a large number of people.

A perfume holder 16 having a plurality of pores is installed at the top of the rotary shaft 3 to which the rotary blade 4 of FIG. 3 is attached. The fragrance holder 16 is filled with a desired fragrance and evaporates when heated to radiate the fragrance wire into the upper air. Therefore, when the clothes are dried, the clothes can be simultaneously impregnated with a preferable scent. A deodorant or the like may be filled instead of the fragrance.

Although the number of rotary blades is four in the above embodiment, generally two to eight blades are preferably used. The longitudinal dimension is such that the rotation locus is 50% of the diameter of the heat retaining side wall 10 of the housing 1.
If it is above, various choices can be made. Below this size, the effect of the water vapor concentration shift due to the vortex flow is relatively small. The higher the motor rotation speed, the higher the effect of shifting the water vapor concentration, but problems such as clothing deviation and noise generation occur. Therefore, it is practically set to about 30-60 rpm. It is possible up to about 200 rpm. It will be apparent to those skilled in the art that various improvements, combinations, and changes can be made in addition to the embodiments described above.

[0033]

As described above with reference to the embodiments, according to the present invention, it is possible to dry with a simple structure while taking advantage of the characteristics of a suspension type clothes dryer that is quiet and does not lose its shape or wear. The water vapor partial pressure in the clothing area can be reduced. As a result, clothes can be dried more efficiently than the conventional suspension dryer.

[Brief description of drawings]

FIG. 1 is an embodiment diagram of a suspension type clothes dryer of the present invention.

FIG. 2 is a diagram showing a specific example of a suspension type infrared clothes dryer according to the present invention.

FIG. 3 is another specific embodiment of the suspension clothes dryer of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 case 2, 13 low-speed rotation motor 3, 14 motor rotation shaft 4 rotary vane 5 heat source 6 clothing holder 7 mesh guard 8 power control panel 9 canopy 10 heat retaining side wall 11 intake hole 12 exhaust hole and drain 15 bottom plate 16 perfume holding vessel

Claims (3)

[Claims] 1. A housing comprising an openable canopy, a heat retaining side wall and a bottom plate, having a plurality of exhaust holes and drains at the upper side of the heat retaining side wall and having a plurality of intake holes at the lower side of the side wall, A low-speed rotation motor that is disposed upward in the center of the bottom plate in the housing, a rotation shaft that projects upward from the motor, a plurality of infrared radiation rotary blades that are attached below the rotation shaft, and the bottom plate. A heat source which is arranged in the peripheral part of the upper motor to heat the rotary blade from below, a clothing holder whose center is placed on the top of the rotary shaft, and a heat source which is arranged above the rotary blade and apart from the rotary blade. A clothes dryer including a net-like guard having a through hole for a rotation shaft and a power supply control panel outside the housing and connected to supply power to the motor and the heat source. 2. A housing comprising an openable canopy, a heat retaining side wall and a bottom plate, a plurality of exhaust holes and drains at the upper side of the heat retaining side wall, and a plurality of intake holes at the lower side of the side wall, A first low-speed rotary motor having a rotary shaft arranged in the housing and upwardly arranged in the central portion of the bottom plate; and a first low-speed rotary motor arranged in the housing downward in the central portion of the canopy, and the rotary shaft is provided on an extension line thereof A second low-speed rotation motor having a certain rotation axis, a plurality of infrared radiation rotary blades attached to the first motor rotation axis, and a first motor peripheral portion disposed on the bottom plate and rotating from below. A heat source for heating the blades, a clothing holder attached to the lower end of the second motor rotation shaft, and a net having a through hole for the first motor rotation shaft that is arranged apart from the rotation blades and above the clothes holder. The guard and the outside of the housing, A clothes dryer including a power control board connected to power the first and second motors and a heat source. 3. The clothes dryer according to claim 1, wherein the clothes dryer is provided in the vicinity of the rotary blades or the heat source, and is provided with a fragrance holder having a plurality of pores on its surface filled with a fragrance or the like. ..