JPH0975596A - Clothes drying machine exclusively for finish drying - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clothes drying machine with a lower price suitable for finish drying half-dried clothes. SOLUTION: This clothes drying machine is provided with the drum 2 to contain clothes, the fan blades 6 integrally attached to the drum 2 radially at the inner disk part 3 in the inner side of the drum 2, the exhaust opening 10 of the drying air attached on the inner diameter part of the fan blades 6 at the inner disk part 3 of the drum, the motor 16 to rotate both the drum 2 and the fan blades 6, and the drum belt 19 between the drum belt pulley 18 situated to the motor 16 and the drum 2. Thus, the motor 16 rotates the drum 2 and the fan blades 6 integrally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer which blows dry hot air into a drum and dries the clothes placed in the drum while contacting the dry hot air with stirring.

[0002]

2. Description of the Related Art As described in Japanese Patent Publication No. 7-28995, a conventional clothes dryer has a drying air path having a circulating wind tunnel containing a clothes storage drum and a heater, and a drying air path. A cooling air path for guiding cooling air for cooling the air, a heat exchange fan having corrugated double-sided air blowers whose grooves are located radially from the center of rotation, and a heat exchange fan rotated by the driving force of the motor. A motor pulley and a fan belt for this purpose, and a circulating wind tunnel for returning the drying air from the casing of the drying air path to the heater and the drum as shown by the arrow.

[0003]

SUMMARY OF THE INVENTION In a conventional clothes dryer, a heat exchange fan having blades for blowing drying air and cooling air on both sides of a rear portion of a drum, and a dryer for surrounding the heat exchange fan are provided. Since an air path casing and a cooling air path are provided, and a motor pulley and a fan belt for rotating the heat exchange fan are further provided, the depth of the clothes dryer becomes thick and the entire clothes dryer becomes large. have.

Further, when the size of the clothes dryer is limited, particularly when the depth of the clothes dryer is limited, the depth of the drum in which the clothes are put is inevitably small, and the volume of the drum becomes small. Therefore, there is a problem that the clothes do not spread in the drum, contact between the clothes and hot air for drying (air) deteriorates, the drying performance deteriorates, and the drying time becomes long.

[0005] In addition, in the parts that constitute the clothes dryer,
A heat exchange fan, a drying air path casing, a cooling air path component, a motor pulley and a fan belt for rotating the heat exchange fan, and a circulating wind tunnel for returning the drying air to the drum and the heater. Since it is provided, there is a problem that the product cost becomes high and the clothes dryer becomes expensive.

The clothes dryer is also used. The clothes dryer was dried indoors or outdoors during the rainy season, rainy weather, cloudy weather, etc., but completely dried clothes that were not sufficiently dried. Often used for finish drying. The amount of water contained in the dry clothes is about 1/10 or less of the amount of water after dehydration in a washing machine. For this reason, in finish drying for drying clothes that are dry-dry, a heat exchange fan, a drying air path casing that surrounds the heat exchange fan, and a cooling air path are provided as in a conventional clothes dryer, and drying air is provided. Even without cooling and dehumidifying, a large amount of moisture will not be discharged to the outside of the machine. Therefore, in the case of a clothes dryer mainly used for finish drying, it is sufficient to directly exhaust the drying air from the drum.

An object of the present invention is to provide a clothes dryer for improving the drying performance and shortening the drying time by increasing the volume of the drum for storing the clothes and making the clothes easy to spread in the drum. The dryer is mainly used for finish drying to dry clothes, and the structure is such that the drying air is directly exhausted. The heat exchange fan of the conventional components, the drying air path and the cooling air path, the fan belt ，
An object of the present invention is to provide a low-cost and low-cost clothes dryer by omitting parts such as a circulation wind tunnel and simplifying the structure of the clothes dryer.

[0008]

According to the present invention, a fan blade for discharging drying air is provided integrally with a drum on a back side disk portion of a drum for storing clothes, and a back side disk of the drum is provided. The fan blade inner diameter part of this section is provided with a drying air discharge hole for discharging the drying air from the drum, and the outer frame exhaust hole for discharging the drying air to the outside of the machine is provided in the outer frame of the fan blade in the radial airflow direction. And a drum belt to be hung between the drum driving pulley of the motor and the drum, and the drum and the fan blade are integrally and simultaneously rotated via the drum belt.

[0009]

The clothes are put into the drum, and the drum is rotated by the motor via the drum belt. Therefore, the clothes are agitated in the drum by the rotation of the drum. At the same time, the fan blades provided on the inner disk portion of the drum rotate integrally with the drum. Due to the rotation of the fan blades, the drying air in the drum is discharged from the drying air discharge hole provided in the fan blade inner diameter portion of the inner disk portion of the drum, and flows out in the radial direction of the fan blades. The air is exhausted to the outside of the clothes dryer through the outer frame exhaust hole of the outer frame. Here, a drying process of clothes will be described. A heater for heating the drying air and an air suction hole for sucking the outside air are provided on the front surface of the drum, and the outside air is sucked through the air suction hole by the fan blades. The outside air is heated by the heater to become high-temperature hot air for drying and flows into the drum. The hot air for drying comes into contact with the clothes stirred in the drum, evaporates and absorbs moisture from the clothes, and becomes wet drying air. The moist drying air goes out to the outside (back side) of the drum through the drying air discharge hole provided in the inner disk portion of the drum, further flows out in the radial direction of the fan blades, and is exhausted to the outside of the machine. .

[0010]

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

FIG. 1 is a sectional view showing the overall construction of a clothes dryer according to the first embodiment of the present invention.

In FIG. 1, 1 is an outer frame of a clothes dryer, 2 is a drum rotatably housed in the outer frame 1, and 3 is a drum 2.
Inner side disc portion, 4 is a drum shaft holder fixed to the inner side disc portion 3 of the drum 2, 5 is a drum shaft press-fitted and fixed to the drum shaft holder 4, and 6 is a rear side disc portion 3 of the drum. Fan blades provided radially, 7 is an outer frame back plate provided on the back side of the outer frame 1, 8
Is a bearing holder provided on the outer frame back plate 7, and 9 is a drum bearing mounted on the bearing holder 8 and having the drum shaft 5 inserted therein.
Reference numeral 10 denotes a dry air discharge hole having a large number of small holes provided in the inner disk portion 3 of the drum, and the dry air discharge hole 10 is located inside the fan blade 6. Reference numeral 11 denotes a filter mounting shaft provided inside the drum of the inner disk portion 3 of the drum, 12 denotes a filter cover provided inside the drum 2 and attached to the filter mounting shaft 11, 1
Reference numeral 3 denotes a cloth dust removing filter provided between the filter cover 12 and the drum back side disc portion 3. Reference numeral 14 denotes an outer frame exhaust hole having a large number of small holes provided on the side surface plate and the lower surface plate of the outer frame 1, and the outer frame exhaust hole 14 is located in the radial direction of the fan blades 6. 1
5 is an outer frame back plate exhaust hole of a large number of small holes provided in the outer frame back plate 7,
The fan blades 6 are provided at the four corners of the outer frame of the outer peripheral portion.
Reference numeral 16 is a motor for rotating the drum 2, 17 is a motor shaft of the motor 16, 18 is a pulley for a drum belt attached to the motor shaft 17, and 19 is a loop between the drum 2 and the pulley 18 for the drum belt. It is a drum belt. Numerals 20 and 21 are clothes stirring lifters provided on the circumferential surface plate of the drum 2. 22 is a drum receiving ring portion provided on the front surface of the outer frame 1, 23 is a drum receiving ring portion 22,
Insert the front sliding ring portion 24 of the drum 2 into the drum 2
It is a drum rotation receiving part that supports the rotation of the. 25 is the outer frame 1
Clothes insertion port provided on the front surface of the device, and 26 is an opening / closing door that covers the clothes insertion port 25. 27, 28 and 29 are opening / closing doors 26
The heater provided inside the heater is a heater of a positive resistance temperature characteristic element having a thin cylindrical shape and a large number of small air holes. 30 and 31 are heaters 2 of positive resistance temperature characteristic element
Electrode plates sandwiching 7, 28, 29, 32 is a heater cover provided on the opening / closing door 26 and surrounding the heaters 27, 28, 29, 33
Is a door air intake hole that is a large number of small holes provided in the opening / closing door 26, 34 is a hot air inlet hole that is a large number of small holes provided in the heater cover 3, and 35 is a door filter provided inside the opening / closing door 26 for preventing dust intake. Is. Reference numeral 36 denotes an outer frame partition plate provided between the outer peripheral portion of the drum back side disc portion 3 and the outer frame 1.

FIG. 2 is a rear sectional view of a dryer showing a drying air blowing mechanism of a clothes dryer according to an embodiment of the present invention.

Reference numeral 1a is an upper surface plate of the outer frame 1, 1b and 1c are side surface plates of the outer frame 1, and 1d is a lower surface plate of the outer frame 1. Reference numeral 14b denotes an outer frame exhaust hole having a large number of small holes provided on the side plate 1b of the outer frame.
Similarly, 14c is an outer frame exhaust hole having a large number of small holes provided in the side surface plate 1c of the outer frame, and 14d is an outer frame exhaust hole having a large number of small holes provided in the lower surface plate 1d of the outer frame.

FIG. 3 is a perspective view showing the structure of the rotary drum in one embodiment of the present invention.

In FIG. 3, reference numerals 6a, 6b and 6c denote fan blades radially provided in the inner disk portion 3 of the drum, and 10 denotes dry air discharge from a large number of small holes provided in the inner disk portion 3 of the drum. This dry air discharge hole 10 is a hole, and the fan blades 6a, 6b,
It is located in the inner diameter portion such as 6c.

FIG. 4 is a perspective view showing the structure of an outer frame exhaust hole for drying air provided in the outer frame in one embodiment of the present invention.

Similarly to FIG. 4, although not shown in FIG. 4, as shown in FIG. 2, the side plate 1c of the outer frame is provided with an outer frame exhaust hole 14c having a large number of small holes, and also the outer frame. Bottom plate 1
An outer frame exhaust hole 14d having a large number of small holes is also provided in d.
Reference numeral 7 is an outer frame back plate provided on the back side of the outer frame 1, and 15 is an outer frame back plate 7.
It is an outer frame back plate exhaust hole of a large number of small holes provided in. The outer frame back plate exhaust hole 15 is provided with four outer frame corners 7a, 7b, 7c between the outer periphery of the fan blades 6a, 6b of the outer frame back plate 7 and the outer frame 1.
It is provided on the surface of 7d.

Next, the operation of the embodiment will be described.

In FIG. 1, the opening / closing door 26 is opened and clothes to be dried are put into the drum 2. Then, the motor 16 and the heaters 27, 28, 29 are energized. When the motor 16 rotates, the drum belt pulley 18 rotates, and the drum 2 rotates via the drum belt 19. When the drum 2 is rotated, the clothes loaded on the drum 2 are lifted by the lifter 2 inside the drum.
Stir with 0,21. Further, when the drum 2 rotates, the fan blades 6 provided integrally with the drum on the inner side disc portion 3 of the drum rotate. When the fan blades 6 rotate, as shown by the arrow a, the drying air, which is the outside air, is sucked in through the door air suction hole 33, and after passing through the door filter 35,
It passes through the heaters 27, 28 and 29. While passing through the heaters 27, 28, 29, the drying air is heated by the heaters to become hot hot air for drying. This high-temperature hot air for drying comes into contact with the clothes stirred in the drum 2, evaporates and absorbs the moisture from the clothes, and becomes moist hot and humid drying air containing moisture. This humid drying air
As shown by the arrow b, passing through the cloth dust removal filter 13,
After the cloth dust and cotton dust that have come out of the clothes have been removed, they are discharged from the drying air discharge hole 10 to the outside of the drum 2. Since the fan blades 6 are rotating, the drying air discharged from the drum 2 is blown in the radial direction of the fan blades 6 as indicated by the arrow c, and the outer frame exhaust holes provided on the side surface and the lower surface of the outer frame. 1
It is exhausted from 4. At the same time, the drying air is also exhausted in the back direction of the dryer from the outer frame back plate exhaust hole 15 provided in the outer frame back plate 7, as shown by the arrow d.

The details of the exhaust of the fan blades 6 in the radial direction will be described with reference to FIG. In FIG. 2, when the fan blades 6 rotate as shown by the arrow A, the drying air in the drum 2 flows into the inner diameter portion of the fan blades 6 from the drying air discharge holes 10 having a large number of small holes, and enters the fan blades 6. Flows along the radial direction. The drying air that is blown in the radial direction is the side plate 1b of the outer frame,
Border exhaust holes 14b provided in 1c, and 14c, and an outer frame exhaust hole 14d provided on the lower surface plate 1d of the outer frame, and is exhausted to the outside as respective arrow _{c 1, c 2, c 3} .

The details of the exhaust from the outer frame back plate exhaust hole 15 in the direction of arrow d will be described with reference to FIGS. In FIG. 3, a plurality of fan blades 6 are radially provided on the inner disk portion 3 of the drum. Further, in FIG. 4, the drying air exhaust holes 14 are provided in the side plates 1b, 1c and the lower plate 1d of the outer frame, and the outer frame back plate exhaust holes 15 are formed by the four corners 7a, 7b of the outer frame back plate 7. ，
It is provided on the surfaces 7c and 7d. The drying air blown from the fan blades 6 is exhausted in the direction of arrow c from the drying air exhaust hole 14, and at the same time, a part of the drying air is
After flowing into the four corners of the outer frame 1, it is also exhausted from the outer frame back plate exhaust holes 15 in the direction of arrow d. In the present invention, as shown in FIG.
The fan blades 6 are configured by the configuration described in FIGS. 3 and 4 in which the drying air exhaust hole 14 performs exhaust in the radial direction (arrow c direction) and the outer frame back plate exhaust hole 15 exhausts in the arrow d direction. The ventilation resistance to the air is reduced and a large amount of drying air can be sent.

According to this embodiment, since the fan blades 6 for blowing the drying air to the back side disk portion 3 of the drum 2 are integrally formed with the drum 2, the conventional heat exchange fan and the drying device can be used. Air passage casing, cooling air passage casing,
Since the motor pulley and the fan belt for rotating the heat exchange fan can be omitted, the depth dimension of the drum 2 can be increased. Thereby, the volume of the drum 2 can be increased. Therefore, since the clothes spread well in the drum, the contact area between the clothes and the hot air for drying increases, so that the drying performance can be improved and the drying time can be shortened. Further, if the volume of the drum 2 can be increased, the clothes spread well in the drum, so that the clothes are less likely to wrinkle and the dry finish is improved.

As described above, the clothes dryer is used. The clothes dryer further completely dries clothes that have been dried indoors or outdoors during the rainy season, rainy weather, cloudy weather, or the like. Often used for finish drying. The dry clothes contain only about 1/10 or less of the water content after dehydration in a washing machine. For example, 3kg
The laundry clothes described above contain about 2 kg of water immediately after dehydration, but the dry clothes contain only 100 to 200 g of water. Therefore, in the case of finish drying, a large amount of moisture is not discharged to the outside of the clothes dryer even without cooling and dehumidifying with the heat exchange fan and the cooling air passage as in the conventional case. The clothes dryer of the embodiment is a clothes dryer whose main purpose is to use for finish drying for drying raw clothes. In this example,
In order to improve the finish drying, the drying air from the drum is directly exhausted, the volume of the drum 2 is increased, and the clothes are spread well in the drum. Since the contact is improved, the performance of finish drying for drying clothes that are dry-dry can be improved.

Further, according to this embodiment, since the outside air is directly sucked in from the door air suction hole 33 of FIG. 1 and used as the drying air, the absolute humidity of the drying hot air which comes into contact with the clothes in the drum. Since it can be made lower than the conventional method of circulating the drying air to cool and dehumidify with a heat exchange fan, the difference in absolute humidity, clothes can be more completely dried, and the finished dry state of clothes can be improved. be able to.

Further, according to this embodiment, the fan blades 6 are integrally formed with the drum 2, and the rotation of the drum 2 and the rotation of the fan blades 6 are controlled by the motor 16, the drum belt pulley 18,
The drum driving parts of the drum belt 19 are commonly used. As a result, the heat exchange fan, the drying air passage and the casing, the cooling air passage and the cooling casing, the motor pulley and the fan belt for rotating the heat exchange fan, and the drying air for returning the drying air to the heater and the drum, which are conventionally provided, are provided. Parts such as a circulation wind tunnel can be omitted. Therefore, since the number of components of the clothes dryer can be reduced, the cost of the product can be reduced and the clothes dryer can be made inexpensive.

[0027]

According to the present invention, since the fan blades for blowing the drying air to the inner disk portion of the drum are formed integrally with the drum, the conventional heat exchange fan and the drying air path are provided. Since the cooling air path, the motor pulley for rotating the heat exchange fan, and the fan belt can be omitted, the depth dimension of the drum can be increased. Thereby,
The volume of the drum can be increased. Therefore, since the clothes put in the drum spread well in the drum, the contact area between the clothes and the hot air for drying (air) can be increased, the drying performance can be improved, and the drying time can be shortened.

Further, if the volume of the drum can be increased, the clothes spread well in the drum, so that wrinkling of the clothes is reduced and the dry finish is improved.

The clothes dryer is also used for finish drying to completely dry the clothes that are dried indoors and outdoors during the rainy season, rainy weather, cloudy weather, or the like. Often used. The dry clothes contain only about 1/10 or less of the water content after dehydration in a washing machine. For example, 3 kg of laundry clothes contains about 2 kg of water immediately after dehydration, while dry clothes contain only 100 to 200 g of water. Therefore, in the case of finish drying, a large amount of moisture is not discharged to the outside of the clothes dryer even without cooling and dehumidifying with the heat exchange fan and the cooling air passage as in the conventional case. The clothes dryer of the present invention is a clothes dryer whose main purpose is to use for finish drying for drying the above-mentioned raw-dry clothes. In the present invention, in order to improve the finish drying, the drying air from the drum is directly exhausted, the volume of the drum is increased, and the spread of the clothes in the drum is improved, so that the clothes are dried. Since the contact with hot air for drying is improved, the performance of finish drying for drying clothes that have been dried can be improved.

Further, according to the present invention, since the outside air is directly sucked through the door air suction hole and used as the drying air,
Since the absolute humidity of the hot air for drying in contact with the clothes in the drum can be made lower than the conventional method of circulating the drying air to cool and dehumidify with the heat exchange fan, the difference in absolute humidity and the clothes It can be completely dried, and the finished dry condition of clothes can be improved.

Further, according to the present invention, the fan blade is integrally formed with the drum, and the rotation of the drum and the rotation of the fan blade are shared by the motor, the drum belt pulley, and the drum driving parts such as the drum belt. I am letting you. As a result, the heat exchange fan, the drying air passage and the casing, the cooling air passage and the cooling casing, the motor pulley and the fan belt for rotating the heat exchange fan, and the drying air for returning the drying air to the heater and the drum, which are conventionally provided, are provided. Parts such as a circulation wind tunnel can be omitted. Therefore, since the number of components of the clothes dryer can be reduced, the cost of the product can be reduced and the clothes dryer can be made inexpensive.

[Brief description of drawings]

FIG. 1 is a sectional view of a clothes dryer according to an embodiment of the present invention.

FIG. 2 is a sectional view of a drying air blowing mechanism according to an embodiment of the present invention.

FIG. 3 is a perspective view of a rotary drum according to an embodiment of the present invention.

FIG. 4 is a perspective view of an outer frame discharge hole for drying air provided in the outer frame in the embodiment of the present invention.

[Explanation of symbols]

2 ... Rotating drum, 3 ... Disc side part of drum, 10 ... Drying air discharge hole, 16 ... Motor, 18 ... Drum belt pulley, 19 ... Drum belt.

Claims (4)

[Claims] 1. A drum housed rotatably in an outer frame,
A fan blade for blowing drying air is provided integrally with the drum, sucks the outside air, heats it with a heater to make hot air for drying, and blows the hot air for drying to the drum for drying in rainy weather or in rainy weather. The clothes dryer for exclusive use in finishing drying, characterized in that the hot air for drying is blown onto the previously dried clothes to dry the clothes, and the drying air after drying is exhausted outside the machine by the fan blades. 2. A drum rotatably housed in an outer frame of a clothes dryer, and a plurality of fan blades radially provided integrally with the drum on the inner disk portion of the drum. A clothes dryer characterized in that. 3. A drum rotatably housed in an outer frame of a clothes dryer, a plurality of fan blades radially provided integrally with the drum on a back side disc portion of the drum, and the drum. A dry air discharge hole in the drum provided on the inner side of the fan blade of the inner disk portion, a motor and a drum belt for rotating and driving the drum and the fan blade, and a drying air blown to the drum. A clothes dryer provided with a heater for heating. 4. A drum rotatably housed in an outer frame of a clothes dryer, a plurality of fan blades radially provided integrally with the drum on the inner disk portion of the drum, and the drum. And a drum belt for rotating and driving the fan blades together, an outer frame exhaust hole for dry air provided on a side surface plate and a lower surface plate of the outer frame in a radial direction of the fan blades, and the fan on the outer frame back plate. Outer frame back plate exhaust holes for exhausting dry air from the fan blades provided at four corners of the outer frame corresponding to the outer peripheral portion of the blade, and a heater for heating drying air blown to the drum are provided. A clothes dryer characterized by.