JP3251879B2 - Clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a clothes dryer,
More specifically, the present invention relates to a structure for blowing hot air heated by a heater.

[0002]

2. Description of the Related Art Conventionally, this type of clothes dryer has a structure in which clothes are put into a drum that is driven to rotate by a motor, and air heated by a heater is blown into the drum to heat and dry the clothes. It has become.

[0003] In consideration of safety when putting clothes in and out, the heater is installed as far as possible from an operation unit for putting clothes in and out. Specifically, avoid the lower part of the drum front that is easy to touch when putting clothes in and out,
It is often installed on the left and right in front of the drum.

However, in the above-described structure, the hot air is only sent to the filter section across the center of the drum, and the hot air does not spread sufficiently below the drum. There was a problem in point.

Incidentally, as disclosed in Japanese Patent Application Laid-Open No. 60-96298, a small amount of clothes is brought to the outer periphery of the rotating drum to efficiently dry it by blowing warm air around the drum. Has been proposed earlier.

[0006]

However, Japanese Patent Application Laid-Open No. 60-9 / 1985
According to the technique described in Japanese Patent No. 6298, the drum is constantly rotating during the operation of the dryer, and the hot air is uniformly scattered around the rotating drum. Wool sweater etc.
The technology described in the above-mentioned publication cannot be applied to drying of delicate clothes, which is so-called tumbler rotation prohibition.

SUMMARY OF THE INVENTION An object of the present invention is to reduce the drying time without causing uneven drying when performing delicate drying of a delicate garment such as a wool sweater or the like in which rotation of a tumbler is prohibited using a drying shelf or a hanger. It is an object of the present invention to provide an improved clothes dryer capable of performing efficient drying.

[0008]

The above object is achieved by a structure in which warm air from a heater is guided downward in a drying room for storing clothes.

As described above, according to the present invention, the warm air from the heater is guided downward in the drying room for storing clothes, and the warm air once forcibly guided below the drying room is Because of the upward nature, the warm air flows upward and evenly hits the entire garment without causing drying unevenness, and the drying time can be shortened accordingly. In particular, according to the present invention, when carrying out static drying of delicate clothes such as wool sweaters using a drying shelf or a hanger, etc., unevenness of drying may occur because warm air hits uniformly from the lower part of the clothes upward. And efficient drying can be performed.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
This will be described with reference to FIG.

A drum 4 provided in the outer frame 1 has a function as a clothes drying chamber, and clothes are put in from a door 2 which can be opened and closed via a clothes inlet 3. The front side of the drum 4 is supported by a drum support 5 provided on the front inner surface of the outer frame 1, and the rear side of the drum 4 is a heat exchange fan having both functions of circulation and a heat exchanger for dehumidifying moisture. 6 is rotatably supported by a fan casing 8 having a holding function.

Power is transmitted to the drum 4 via a drum belt 9 from an electric motor 10 disposed on the lower right rear side as viewed from the front door 2 side, and is driven to rotate. Similarly, the heat exchange fan 6 is rotatably driven by power transmitted from the electric motor 10 via the fan belt 14.

[0013] Regarding a circulation air path of air for drying clothes,
The heat generated by the heater 7 disposed on the front side of the drum 4 is
It is guided as hot air into the drum 4 by the heat exchange fan 6,
The clothing to be dried is heated to evaporate moisture. The moisture evaporated from the clothes passes through the lint collecting device 11 together with the circulating wind indicated by the arrow, passes through the drum exhaust port 4 a on the rear wall of the drum 4, and flows into the circulation side of the fan casing 8. The moist air flowing into the circulation side is cooled and dehumidified by the heat exchange fan 6 using the cooling air sucked from the back plate 15. Next, the dehumidified air passes through a fan casing 8 which holds the heat exchange fan 6 and forms a ventilation path, and is provided with a circulation duct 12 installed at the lower left side when viewed from the front.
Return to the heater 7 through the air, the air makes a circuit, and a circulation air path is formed.

The motor 10 and the heater 7 are driven and controlled by a controller 16 such as a microcomputer.
The operation is controlled by the operation control unit 17.

In the above configuration, when putting on and taking out the clothes, there are many chances that the hand touches the lower part of the clothes input port 3, and from the viewpoint of safety, the heater 7 is attached to the hand such as the left side on the front side of the drum 4. They are placed in hard-to-touch locations.

However, in such an arrangement, the warm air is only sent to the filter section 11 across the center of the drum 4 as shown by the arrow A, and the warm air does not spread sufficiently below the drum. In such a case, when delicate clothes, such as a wool sweater or the like, for which tumble drying is prohibited are placed in the drum 4, or when the delicate clothes 21 are stopped using the drying shelf 19 or a hanger, the warm air is applied to the clothes. Directly blows through the inside of the drum 4 as shown by the arrow A, resulting in drying unevenness. In order to eliminate the drying unevenness, the drying time has to be increased. Already dried parts are over-dried, causing fabric damage.

Therefore, in this embodiment, as shown in FIG.
The heater 7 has a structure in which a deflecting plate 18 for deflecting hot air from the heater 7 is attached to a hot air outlet of the heater 7. The warm air from the heater 7 is blown in the direction of arrow B along the deflection plate 18 and reaches the lower part of the drum 4. The warm air sufficiently hits the clothes 21 placed on the drying shelf 19 when the drum 4 is stopped, so that the clothes 21 can be operated without causing drying unevenness.

FIG. 2 shows a case where the clothes 21 are suspended by the hanger 13 while the drum 4 is stopped. Also in this case, the warm air hits sufficiently below the clothing 21 and the clothing 2
1 does not cause drying unevenness.

Another embodiment according to the present invention will be described with reference to FIG.

FIG. 3 shows the structure of the heater 7 and the heater cover 22 provided on the front drum side of the heater 7. It is provided diagonally to guide the wind. The heater cover 22 is a heat-resistant resin that can withstand high temperatures, has a thickness of several mm, and has a diameter of about 5 mm in the opening 22a.
Warm air blows into the drum from the

That is, in the present embodiment, the opening 2
2a is opened diagonally toward the lower part of the drum,
The air heated by the heater 7 is blown along the opening of the heater cover 22 and reaches the lower part of the drum similarly to FIGS. The warm air that has reached the lower part of the drum sufficiently spreads below the clothes that are placed still using a hanger or the like in the drum.

Another embodiment according to the present invention will be described with reference to FIG.

FIG. 4 shows a configuration in which the warm air blown into the drum 4 from the heater 7 is deflected by a lifter 20 provided in the drum 4 and guided to the lower portion of the drum 4.

The lifter 20 is provided obliquely from above to below from the heater 7 side to the filter section 11 side.
The warm air generated from the heater 7 is guided to the lower side of the drum 4 along the lifter 20.

In the illustrated embodiment, the case where the rotary drum 4 and the heat exchange fan 6 are driven to rotate by one electric motor 10 has been exemplified. There is no problem in using an electric motor. On the other hand, when the rotating drum 4 and the heat exchange fan 6 are rotationally driven by one electric motor 10, the electric motor 10 interrupts / continues rotation between the electric motor 10 and the drum 4. (Not shown) is connected. An electric motor 10 that drives a drum belt 9 that transmits a driving force to the rotating drum 4 is used as the clutch.
A one-way clutch incorporated in a drum drive pulley fixed to the shaft, or an electromagnetic clutch.

[0026]

As described above, according to the present invention, the warm air from the heater is guided downward in the drying room for storing clothes. Due to its upward nature, the warm air flows upward and evenly hits the entire garment, and does not cause drying unevenness. It was confirmed that the length can be reduced by about 1/2 to 1/3. In particular, according to the present invention, when carrying out static drying of delicate clothes for which tumbler drying such as a wool sweater is prohibited using a drying shelf or a hanger, etc., the hot air hits uniformly from the lower part of the clothes to the upper part, so that drying is performed. Efficient drying can be performed without causing unevenness.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a clothes dryer showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing a usage example of the clothes dryer shown in FIG. 1, which is different from that of FIG.

FIG. 3 is a partially enlarged longitudinal sectional view of a main part showing a second embodiment of the present invention.

FIG. 4 is a longitudinal sectional view of a clothes dryer according to a third embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Outer frame, 2 ... Door, 3 ... Clothing inlet, 4 ... Drum, 5
... Drum support, 6 ... Heat exchange fan, 7 ... Heater, 8 ...
Fan casing, 9: drum belt, 10: electric motor,
DESCRIPTION OF SYMBOLS 11 ... Filter part, 12 ... Circulation duct, 13 ... Hanger, 14 ... Fan belt, 15 ... Back plate, 16 ... Controller, 17 ... Operation control part, 18 ... Deflection plate, 19 ... Drying shelf, 20 ... Lifter, 21 ... Clothes, 22 ... heater cover.

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hikaru Watanabe 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Pref. Hitachi, Ltd. Electrical Equipment Division, Taga Headquarters (56) References JP-A-7-194894 (JP) JP-A-5-168796 (JP, A) JP-A-9-108500 (JP, A) Utility model registration 2535222 (JP, Y2) JP-B-63-48559 (JP, B1) (58) Field (Int.Cl. ⁷ , DB name) D06F 58/20 D06F 58/02

Claims (7)

(57) [Claims] An outer frame and a rotatably provided inside the outer frame.
A drum for accommodating clothes Re, a heater for heating the air,
In a clothes dryer having an air blowing means for flowing the hot air heated by the heater to the drum, said Dora
The drum in the warm air from the heater in the arm is in the stopped state
The deflection plates for deflecting downwardly temperature air outlet of the heater
Clothing dryer characterized by being attached . 2. An outer frame and a rotatably provided inside the outer frame.
A drum for accommodating clothes Re, a heater for heating the air,
In a clothes dryer having an air blowing means for flowing the hot air heated by the heater to the drum, said heating
The shape of the opening provided in the heater cover of the drum
So that it tends downward, and
The air heated by the heater opens the heater cover.
A clothes dryer characterized by being blown along the mouth . 3. The heater according to claim 1, wherein the deflecting plate is provided at a front portion of the heater.
Clothes dryer that is integrated with the protective cover provided in . 4. A rotary drum according to claim 1, wherein
And the fan for hot air blower is driven by one motor,
The electric motor interrupts / continues rotation between the electric motor and the drum.
Clothes dryer with connected clutch . 5. The clutch according to claim 4, wherein the clutch is
An electric motor that drives a drum belt that transmits driving force to a ram
Built into the drum drive pulley fixed to the shaft of
Clothes dryer which is a one-way clutch . 6. The clutch according to claim 4, wherein the clutch is
An electric motor that drives a drum belt that transmits driving force to a ram
Built into the drum drive pulley fixed to the shaft of
Clothes dryer which is an electromagnetic clutch . 7. The rotary drum according to claim 1, wherein
And hot air blower fans are driven by dedicated motors
Clothes dryer with a configuration that makes it easy .