JPH01230395A - Dehumidification type drier - Google Patents

Abstract

PURPOSE:To realize a dehumidification type drier with a simple structure by constituting a heat exchanger, a circulating fan, and a cooling fan with a double- blade fan and simplifying a path from a fan case to a ventilation passage and a heating element. CONSTITUTION:Clothes put and rotated and stirred in a drum 2 evaporate the moisture contained in the clothes with the hot air fed into the drum 2, the moist air with a high temperature is fed to the circulating fan side of a double-blade fan 5. The circulating air is deprived of heat by this double-blade fan 5 section, the moisture contained in the circulating air is bedewed and returned to a heating element 3 again. The bedewed moisture is flung away by the double-blade fan 5 and collected on the inner wall of a fan case 28 and discharged through a drain port provided on part of a ventilation passage 30. The circulating air is repeatedly circulated, and clothes are dried in sequence.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat exchange structure of a dehumidifying dryer, particularly a fan-based heat exchange structure.

Conventional technology Conventionally, this type of dehumidifying dryer has a circulating air system in which hot air is introduced into a drum, passed through an exchanger, and then reheated by a heating element and returned to the drum. Two types of fans, a circulation fan for cooling the heat exchanger and a cooling fan for cooling the heat exchanger, were installed independently5. However, in the conventional configuration, the circulation and cooling It would be difficult to arrange the blades 11j, the fan casing, and the ventilation passages of the fan separately.

3. - Humid air normally passes through the air circulation passages, condenses in the heat exchanger, and gradually removes the moisture contained in the clothing. Conventionally, between the fan case and the ventilation path, between the ventilation path and the heat exchanger,
Historically, it was necessary to provide a reliable watertight structure at the connection between the heat exchanger and the 11/11 waterway.

In this way, a conventional dehumidifying dryer requires a heat exchanger, a circulation fan, a cooling fan, a ventilation passage connecting these to each other, a drainage passage, and airtightness between them.

A large number of parts, etc. are required to ensure watertightness, making it unavoidable.In order to maintain the desired performance of the dryer and ensure its quality, assembly workers have a wealth of experience and a lot of effort. However, there were problems in that the number of T required was high and the manufacturing cost was high.

In view of the above-mentioned problems, an object of the present invention is to provide a dehumidifying dryer with a small number of parts and simple construction.

In order to achieve the above object, the present invention provides a machine body rotatably equipped with a rotary drum for agitating large pieces of clothing, and a machine that blows air into the rotary drum. ? A circulation fan that generates circulating air in a ring and a cooling fan for blowing cooling air installed on the front and back of this circulation fan create a illusion of circulating air and cooling air. (iii) The fan case is integrally formed of resin, and includes a whirlpool part that guides circulating air 41-' by a circulation fan to a ventilation passage communicating with the rotating drum, and a V6 The intake port for sucking air toward the ring fan, and this 'IN 'xc l-]
The drum seal part that maintains the uniformity of air in the passage that connects the rotation section and the rotating drum, and the partition wall that forms the cooling vortex chamber that is formed on the outer edge and guides the cooling air to the exhaust port of the aircraft. ,-also,
Install a fan case reinforcing plate by attaching it to the inner wall of the intake port of the fan case.The center of this reinforcing plate should be pressed with the side that does not come into close contact with the fan case to the IL provided on the shafts of both wing fans. The mid-abdomen is ``) 11 circulation wind J■η Qi [
1, and the outer periphery is fitted onto the outer edge of the fan case to press the drum seal part.

5 ・＼− Function According to the above configuration, the double-blade fan and the fan case covering it can constitute a circulation fan, a cooling fan, a cooling ventilation passage, and even a part of the circulation ventilation passage, and the configuration is different from that of the conventional one. It can be significantly simplified compared to . Furthermore, even when the fan case is integrally molded with a resin suitable for mass production, the airtightness of the drum seal portion that airtightly communicates the air intake port of the fan case with the inside of the rotating drum will not deteriorate.

The fan case tends to deform due to the humid and high temperature air coming from the circulation side (rotating drum side), but the reinforcing plate installed at the intake 1'' part of the fan case can suppress this deformation. Since the reinforcing plate presses the drum seal part, the gap between the fan case opening (mouth part and rotating drum J) can be maintained constant, and the drum 1 and seal part ensure the airtightness of the circulation ventilation path. be able to.

Examples Examples of the present invention will be described below. In the figure,
1 is a drum 6 which rotatably stirs the clothes put in; 3 is a drum 2;
A heating element 4 is a case that houses the heating element 3 for introducing hot air into the interior. Reference numeral 5 denotes a double-winged fan, with a post 6 arranged in the center, and a pair of oilless metal/L/7 inserted into the boss 6 to rotatably support the double-winged fan 5, and a U-shape on the outer periphery. A groove 8 is formed, and an impeller portion 9 that protrudes substantially radially from the midsection and whose cross-sectional shape in the circumferential direction is not substantially meandering is provided. The impeller part 9 is made of a relatively thin resin film, and the irregularities on one surface form a circulation fan 10 that circulates hot air (circulating air) from the heating element 3 into the drum 2.
The other unevenness forms a cooling fan 13 that generates cooling air that takes in air from the intake port 11 on the rear outer wall of the fuselage 1 and exhausts it from the exhaust port 112 on the rear outer wall of the fuselage 1.

This relatively thin resin film forms a boundary film through which the circulating air and the cooling air pass, so they pass through this thin film.
Transmission takes place. That is, this impeller portion 9 plays the role of a heat exchanger. One side of the double-winged fan 5 forms the circulation fan 10 and the other side forms the cooling fan 13.

Reference numeral 14 denotes a disk-shaped reinforcing plate that covers the medium heat section on the circulation side of the double-wing fan 5. The outer periphery of this reinforcing plate 14 is screwed and fixed to the supplement boss 15 provided on the double-wing fan 5. x
It plays the role of correcting the 1i-plane stoppage.

1, the temperature of the circulating air of both wing fans 5 has increased to 1jl!
This alleviates warpage of the entire double-wing fan due to the difference in elongation of the resin on the i-ring side and the elongation of the resin on the cooling side.

Reference numeral 16 designates a fan pulley for driving the double-blade fan 5, which is provided at the center of the cooling side of the double-blade fan 5. The fan pulley is made of a metal plate and has circumferentially inclined side surfaces 1 and 7 on the middle heat section of the double-blade fan 6. The fan pulley 16 is attached corresponding to this inclined side surface 17, and this fan boo! J
The belt 18 for driving the double-blade fan is wound in four grooves in the 7-shaped groove formed by the two sides including the inclined side surface formed also at -16.

19 is a motor, a motor pulley 20 is fixed to the shaft of the motor, and the motor pulley 20 and the fan boo! J ---
A fan driving bell 1-18 is installed between the fan 16 and the fan drive bell 1-18. 21 is a drum pulley, which is fixed to the shaft of the motor 19 and has a V-belt 22 between it and the outer periphery of the drum 2;
Drum 2 is driven to rotate.

Reference numeral 23 denotes a shaft that pivotally supports the double-wing fan 5, and is crimped and fixed to the center of a beam 24 fixed to the rear of the fuselage 1. 25
1 is a lug hole provided in order to regulate the characteristics in the axial direction so that the boss 6 at the center of the double-blade fan 5 is sandwiched between the shafts of the double-blade fan 5. 26 is provided.

Reference numeral 27 denotes a flexible and bendable sealing member having a 7-shaped cross section, which is attached to the U-shaped groove 8 formed on the outer periphery of the double-blade fan 5;
8 is a fan case that covers the circulation fan side of both wing fans.
The fan case 28 is integrally formed of resin or the like, and includes a partition part 29 that forms the outer peripheral edge of the rotating surface of the double-blade fan 5 and a vortex chamber part 31 that guides the circulating air generated by the circulation fan 10 to the ventilation passage 30. , an intake port 32 for intake of circulating air into the circulation fan 10, and a fan case 2 from the drum 2 itself.
A drum seal part 34 that connects the drum seal 33 provided to improve the elegance of the passage connecting the intake port part 32 of the fan case 28 and the cooling air A partition wall 36 constituting a cooling vortex chamber section 35 for guiding the air to the exhaust port 12 on the outer wall of the aircraft body 1 is formed.
The end face 37 of is inscribed in the fuselage 1.

38 has a cross section that is shaped like the fan case 2.
A seal fitting is attached to the inner end of the partition part 29 of the fan case 28 and is provided facing the seal part A:/l'27 of the double-wing fan 5 over the entire inner circumference of the partition part 29 of the fan case 28,
The seal fitting 38 press-fits its narrow gap 39 into the thickness of the partition part of the fan case 28, and inserts caulking material or a backing 42 into the 7-shaped groove 41 formed by the bent part 4o at one end and the partition part 2 of the fan case 28. It becomes by injecting or inserting.

Reference numeral 43 denotes a reinforcing plate of the fan case 28 that is provided in close contact with the inner wall surface of the peripheral edge 44 of the air intake portion 32 of the fan case 28. The surface is pressed against the retaining ring 25 provided on the shaft 23 of the wing fan 10/yn 5, the middle plate part has the circulation air ventilation 1] 45, and the outer peripheral part is connected to the fan booth 28. A mountain-shaped projecting ring 46 is provided toward the inner wall surface, and is fitted into a recess 47 of the fan case 28 provided corresponding to this shape. Adhesive fixed drum sea) v3
3 is pressed and slid. Therefore, even if the fan booth 28 into which humid and high temperature air flows is molded with resin, the reinforcing plate 43 can prevent deformation.Moreover, since the reinforcing plate 43 has the function of pressing the drum seal 33, it is possible to improve airtightness. Can be done.

Reference numeral 49 denotes a fitting for fixing the sealing member 27 to be attached to the U-shaped groove 8 formed on the outer periphery of the double-winged fan 5 by one tightening bolt.

This sealing member 27 is made of felt in this embodiment, but when the two-wing Noan 5 rotates at high speed, the inner surface of the felt attached in a figure 7 shape comes into sliding contact with the sealing fitting 38 and is severely worn. Due to this wear, the seal member 27 feels
- Hair 11 ・\- Feathers appearing in Table m1 are scattered, and the fluff may be carried by the heating element 31 from the ventilation path through the heating element 30 case on the circulating wind. If a large amount of this fuzz is generated and remains on the ventilation surface of the heating element 3, the amount of circulating air passing through the heating element 3 will be reduced, and as a result, the heating element 3 will not be able to fully exhibit its intended performance. In other words, the heat generated in the tank is significantly reduced and the dryer cannot function properly. However, in this embodiment, the fuzz that occurs on the surface of the felt is burned off with a flame, and the sliding surface is made comparatively smooth.

To explain the operation of the dehumidifying dryer in this embodiment, the clothes that are put into the drum 2 and rotated are agitated, and the hot air blown into the drum 2 evaporates the moisture contained in the clothes. The air becomes hot and humid and the double wing fan 5
It is sent to the circulation fan side. Heat is removed from the circulating air by the double-blade fan 5, moisture contained in the circulating air is condensed, and the air returns to the heating element 3 again. The dew-condensed moisture is blown away by the double-winged fan 5, collected on the inner wall of the fan case 28, and discharged from a drain port (not shown) provided in a part of the ventilation path 30. In this way, the circulation of the circulating air is repeated and the clothes are successively dried.

Effect of the invention In this way, the present invention replaces the conventional g! ζ exchanger.

The circulation fan and cooling fan are composed of a single double-winged fan, and the path from the fan case to the ventilation path and the fan unit is
It is possible to realize a dehumidifying dryer with an extremely simple configuration. Since the fan case is equipped with a reinforcing plate, it is possible to prevent the fan case from deforming due to heat, and since force is applied in the direction of pressing and hitting the drum seal, its airtightness V1 can be increased.

[Brief explanation of the drawing]

&'E is a cross-sectional view of a dehumidifying dryer showing an embodiment of the present invention, Fig. 2 is a perspective view of the power struggle between both wing fans of the same dehumidifying dryer, and Fig. 3 is an enlarged cross-sectional view of the essential parts. It is a diagram. 2...Drum, 3...Heating element, 5...
・Double wing fan, 8... U-shaped groove, 1o... Circulation fan, 11... Intake port, 12... Exhaust ['', 1
3...Cooling fan, 13 \-2 14...Reinforcement plate, 16...Fan pulley, 17...Slanted side, 23...Shaft, 2
5... Retaining ring, 26... Play FL27.
... Seal member, 28 ... Fan case, 29
.....Partition section, 30.....Ventilation duct, 31.
... Vortex chamber section, 33 ... Drum seal, 3
5... Cooling vortex chamber section, 36... Partition wall, 38...
...Seal fitting, 42...Caulking material.

Claims (1)

[Claims] The machine includes a rotatable rotating drum that stirs the loaded clothes, a circulation fan that circulates air within the rotating drum to generate circulating air, and a cooling fan that is integrated with the circulation fan to blow cooling air. It is equipped with a double-blade fan that exchanges heat between circulating air and cooling air, and a fan case that covers the circulation fan of the double-blade fan, and the fan case is integrally formed of resin, and the circulating air generated by the circulating fan is transferred to a rotating drum. a vortex chamber that leads to a ventilation passage communicating with the rotary drum; an intake port that draws air from within the rotating drum toward the circulation fan; and a drum seal that maintains airtightness of the passage that connects the intake port and the rotating drum. , a partition wall is formed on the outer edge and constitutes a cooling vortex chamber that guides the cooling air to the exhaust port of the aircraft body, and a fan case reinforcing plate is provided in close contact with the inner wall surface of the peripheral edge of the air intake port of the fan case. The center of this fan case reinforcing plate is pressed against the retaining ring provided on the shaft of both wing fans with the side that does not come into close contact with the fan case, the midsection has the ventilation hole for the circulation air, and the outer periphery is attached to the fan case. A dehumidifying dryer that is fitted onto the outer edge of the air intake port and presses against the drum seal.