JPS58118797A - 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 provides clothing that has a heat exchanger that uses corrugated fat plates as blades and has a blowing function that allows heat exchange by guiding high temperature and low temperature air to both sides of the blades. Regarding dryers.

In FIG. 1 showing a conventional clothes dryer, 1 is the main body of the dryer, 2 is a rotary drum rotatably provided in the main body 1 of the dryer and driven by a belt by a motor 3, and 4 is a rotary drum provided on the front of the main body 1. 5 is a heater that heats the circulating air sent into the rotating drum 2; 6 is an impeller of a heat exchanger 2 installed on the back of the dryer; the impeller is driven by a motor 3; . Reference numeral 7 denotes a circulation side casing of the heat exchange type blower, which is provided facing the rear of the rotating drum 2, and has a circulation side intake port 8 in the center. Reference numeral 9 denotes a cooling side casing, which, like the circulation side casing, has a cooling side intake port 10 in the center and supports the rotating shaft 11 of the impeller 6.

Reference numeral 12 denotes a partition plate interposed between the circulation side casing 7 and the cooling side casing 9, which has a sliding part between it and the impeller 6 to airtightly separate the circulation side and the cooling side of the heat exchange type blower. It is separated into Reference numeral 13 denotes a circulation duct, which serves as a ventilation path that connects the exhaust port of the circulation side casing and the intake port of the heater 5.

14 is a drain for discharging water condensed by heat exchange at the impeller 6, and 15 is a back plate that covers the back surface of the main body 1.

Note that arrow A indicates the flow of air on the circulation side, and arrow B indicates the flow of air on the cooling side.

In FIG. 2 showing a conventional clothes dryer, 16 is the main body 1.
Reference numeral 17 indicates an intake air passage on the cooling side that guides cold air outside the main body 1 to the center of the cooling side casing 9; 9 is a holding plate that fixes it to the main body 1, 19 is a belt that transmits the rotation of the motor 3 to the impeller 6, and 20 is a belt that transmits the rotation of the motor 3 to the drum 2.

In FIG. 3 showing an impeller of a heat exchange type blower in a conventional clothes dryer, 21 is a blade made of a corrugated plank, 22 is a boss that supports the inner peripheral edge of the blade 21 and receives the rotating shaft 11 in the center. A main plate 23 and an outer peripheral plate 24 support the outer peripheral edge of the blade 21 .

In FIG. 4 showing the cross section of the impeller, reference numeral 25 denotes inner comb-like protrusions on both sides of the main plate 22 that protrude in the vertical direction. This prevents the mixing of two types of air flowing in from the center of both sides. Reference numeral 26 denotes outer comb-like projections provided on both sides of the outer circumferential plate 23 in the same manner as the inner comb-like projections 24, which close the outer ends of the corrugated thin plates constituting the blade 21.

Therefore, the air flowing into both sides of the impeller 6 flows adjacently through the grooves formed on both sides of the blades 21 without mixing, and heat is exchanged through the wall surfaces of the blades 21 made of thin plates.

Next, the operation of the dryer having the above structure will be explained.

When the power is turned on, the motor 3 is driven to rotate the rotary drum 2 containing clothes, and at the same time, the impeller 6 rotates.

The hot and humid air in the rotating drum 2 is drawn into the impeller 6 through the circulation side intake port 8, and the blades 2 of the impeller 6
Heat is exchanged on the surface of 1, and the resulting water is drained out of the machine through a drain 14.

The air from which moisture has been removed by condensation is sent to the heater 5 through the circulation duct 13, heated again, and circulated into the rotating drum 2.

Furthermore, at the same time as the circulating air flows due to the rotation of the impeller 6, a flow of air also occurs inside the cooling casing 9. 10 and is guided to the impeller 6, and after removing heat from the circulating air shown by arrow A, it is discharged outside the machine.

In this case, as shown in FIG.
The main body 1 is built in and exposed to a temperature approximately 20° C. higher than the outside air due to hot air from the rotating drum 2, heat generated by the motor 3, and the like.

Therefore, the cooling air taken in from outside the machine is heated through the casing wall surface, and its temperature rises, reducing the heat exchange efficiency in the impeller 6 and dehumidifying ability. In addition, the number of component parts is large, resulting in a high product cost.

The present invention eliminates the above-mentioned drawbacks of the conventional clothes dryer by providing a clothes dryer with a simplified dehumidification mechanism.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the attached FIGS. 5 and 6.

In the drawing, 271/:l: 6 because it is a back plate attached to cover the back of main body 1 and also serves as a cooling side casing.
,,,,.

A recess 31 is provided in which the impeller 6 is housed, a cooling side intake port 28 is provided in the central portion of the impeller 6, and an exhaust port 29 is provided in the portion located on the outer periphery of the impeller 6 for discharging the cooling side air. They have the function of a partition plate to airtightly separate the circulation side and the cooling side of the heat exchange type blower, and the function of separating the inside of the dryer cabinet from the cooling side. 3
0 is the belt 190 cover.

When the power is turned on now, the motor 3 is driven to rotate the rotary drum 2 containing clothes, and at the same time, the impeller 6 is also rotated.

As a result, the hot and humid air in the rotating drum 2 is drawn into the impeller 6 through the circulation side intake port 8, and heat exchange is performed on the surface of the blades 21 of the impeller 6, resulting in condensation and water. is drained out of the machine through the drain 14.

The air from which moisture has been removed passes through the circulation duct 13, comes into contact with the heater, is heated again, and is circulated into the rotating drum 2.

Also, the rotation of the impeller 6 causes circulating air to flow through the 7
'-' At the same time, air flows also occur within the cooling side ventilation path formed by the back plate 27. This air flow is the fifth
As shown by arrow B in the figure, the circulating air flow (
After removing heat from the arrow A), it is discharged from the machine through the exhaust port 29.

In this case, the back plate 27 separates the circulating air path from the cooling air path and forms a cooling air path.

The folded back plate 2 faces the outside of the main body 1 and is directly exposed to the outside air.

The cooling air path is therefore not influenced by the circulating air path, and the heat exchange efficiency is greatly improved.

As described above, the present invention provides a dry air path including a rotating drum and a cooling air path for cooling the air in this dry air path, which is formed on a back plate that covers the back of a main body that houses the rotating drum. By making contact through the heat exchange type blower housed in the recess, heat transfer between the cooling side and the dryer body can be prevented and high heat exchange efficiency can be achieved. In addition, it provides a clothes dryer that can increase dehumidification capacity and shorten drying time, and is of great industrial value.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a conventional clothes dryer, Fig. 2 is a partially cutaway rear view of the same clothes dryer, and Fig. 3 is a perspective view of an impeller of a heat exchange type blower used in the clothes dryer. FIG. 4 is a sectional view of essential parts of the impeller, FIG. 5 is a side sectional view of a clothes dryer according to an embodiment of the present invention, and FIG. 6 is an exploded perspective view of the clothes dryer. 1 - Dryer body, 2... Rotating drum, 6... Impeller, 27... Back plate, 3
1... Concavity. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3? 6- Figure 4 Figure 5 Figure 6

Claims (1)

[Claims] The drying air path including the rotating drum and the cooling air path that cools the air in this drying air path include a heat exchange type blower housed in a recess formed in a back plate that covers the back of the main body that houses the rotating drum. Clothes dryer made by contacting the clothes through a wire.