JPS6268496A - Clothing 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] Industrial applications This invention relates to a dehumidifying type clothes dryer.

BACKGROUND ART A conventional clothes dryer of this type is disclosed in, for example, Japanese Patent Application Laid-Open No. 58-67.
As shown in Japanese Patent No. 997, it had a structure as shown in FIG.

In FIG. 6, 1 is an outer frame of the clothes dryer, 2 is a clothes storage unit rotatably installed in the outer frame 1, that is, a drum, 3 is a front door for putting the items to be dried into the drum 2, and 4 is a drum. 06 is a heat exchange type blower that has both air blowing and heat exchange functions, and a flexible sealing material 5 having a substantially ring shape and a V-shaped cross section is fixed to the outer periphery of this heat exchange type blower. A motor that rotates the exchangeable blower 4; 7 a casing that encloses the entire heat exchange blower 4 and forms a ventilation passage; 8 a casing that forms the heat exchange blower 4;
9 is a circulating wind cylinder for guiding hot and humid drying air, 10 is a heating element, that is, a heater, provided in the middle of the ventilation duct, and 11 is a partition wall that divides the air flow on both sides of the air passage. An exhaust port 12 is for discharging cooling air, and is a drain port for discharging dehumidified water to the outside of the machine. a-b respectively indicate the flow of drying air and cooling air.

In the clothes dryer, when the motor 6 rotates and the heat exchange type blower 4 rotates, air flows na and b are generated, and the hot and humid drying air used to dry the clothes is used for cooling by the blades of the heat exchange type blower 4. Cooled and dehumidified by air. The dehumidified drying air is heated by the heater 10 and sent to the drum 2 again.
Blow air inward.

In this way the clothes are dried.

Problems to be Solved by the Invention However, in the configuration as described above, the heat exchange type blower rotates at high speed, so high mechanical strength and precision are required. In addition, near the air outlet on the outer periphery of the impeller of a heat exchange type blower, a complete seal structure is required for the air seal that separates the two air flows flowing on both sides of the impeller, and the seal may wear out depending on long-term use. This has had problems such as decreased reliability and increased sliding resistance.

In view of the above-mentioned problems, the present invention realizes a heat exchange structure that is advantageous in terms of strength and precision, has high cooling performance without a seal structure, has high heat exchange ability, and has high dehumidification ability. The dryer is used for drying purposes.

Means for Solving the Problems In order to achieve all of the above objects, the clothes dryer of the present invention has a drying fan, a cooling fan, a partition plate provided between the two fans, and a fan of this partition plate. a heat exchange element having substantially radial protrusions provided near the outer periphery, and a protrusion wall and a gap between the protrusions on at least one side of the drying air side and the cooling air side to direct each air flow. A guide wall is provided to guide you to the wall.

Function: With this configuration, drying air and cooling air are blown by the drying fan and the cooling fan, and both airs are heat exchanged by the heat exchange element, and the drying air is dehumidified and dries the clothes, but there is no heat exchange. Since the element is stationary, it does not require high mechanical strength or precision, making the structure extremely simple. Also,
Since a guide wall is provided between the protrusions constituting the heat exchange element and has a gap with the protrusion wall to guide the air flow to the protrusion wall, the air flow flows at high speed along the protrusion wall. This allows for extremely good heat transfer from the wall surface to the air.
Significantly improved heat exchange capacity and improved dehumidification performance?
It can be measured.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. In Figs. 1 to 4, parts with the same configuration as the conventional example are given the same numbers and detailed explanations are omitted.
Only the differences will be explained. 13.14 is the rotation axis 16
A drying fan and a cooling fan installed independently on the top, 15
is a partition plate provided between both fans 13 and 14 with a rotating partition @ 16 passing through it, and 17 is a heat exchange element provided on the outer periphery of the fan of the partition plate 15, with approximately radial projections protruding from both sides. It is made of thin plate corrugated metal with 18. This heat exchange element 17 is a chair integrated with or separate from the partition plate 15, fl
However, 019 that does not struggle is a patch plate that is located outside the cooling fan 14 and smoothly guides the cooling air to the total heat exchange element 1γ. A part of the wall of the protrusion 18 and the gap h
' 6 is cut and raised to allow cooling air to flow at high speed along the side wall of the protrusion 18, and the bottom wall 18a of the protrusion 18 is
It is a guide wall 2Q that spreads flow n. and,
The drying fan 13, the drum 2° heat exchange element 17 on the side facing the drum, and the heater 10. The circulating air cylinder 9 supplies drying air to a drying air path forming a closed path. The cooling air path is the intake port 21. Heat exchange element 17. A cooling fan 14 takes in outside air.

The operation of the clothes dryer configured as above will be explained below. When the power is turned on and the motor 6 is rotated, and this rotational force is used to rotate the drying fan 13, the cooling fan 14, and the drum 2, a drying air flow B and a cooling air flow gb are generated by each fan. The drying air is heated by the heater 1o, heats the clothes in the drum 2, and is then blown by the drying fan 14 to the side facing the drum of the heat exchange element 1, passing through the entire circulating air cylinder 9. Head toward the heater 10 again. The cooling air flow b is air outside the machine taken in through the intake port 21, which is blown to the outside surface of the heat exchange element 1.7 by the cooling fan 14, and then exhausted to the outside of the machine through the exhaust port 22. . Both airs flow next to each other with a thin plate constituting the heat exchange element 17 in between, and at this time, heat transfer occurs from the high-temperature drying air to the low-temperature cooling air. The air is cooled, the moisture contained in the air condenses into water droplets, and is drained from the drain port 12, the drying air is dehumidified, and the clothes in the drum 2 are dried.

In the clothes dryer of this embodiment, since the heat exchange element 17, that is, the heat exchanger is stationary, the structure can be significantly simplified. Further, since the distance between the partition plate 15 and the cooling fan 14 and drying fan 13 is narrow and long, a special sealing device is not required to separate the cooling air and the drying air. moreover.

A guide wall 20i is provided on the outside facing side between the protrusions 18 constituting the heat exchange element 17 with a gap between the protrusions 18 and the protrusion wall to guide the air flow f'L. Therefore, the cooling air flow n flows at high speed only along the wall surface of the protrusion 18, and the cooling air also flows over the bottom wall 18& of the protrusion 18, so that heat transfer from the wall surface to the air is reduced. become extremely good,
The heat exchange ability is significantly improved, and as a result, the dehumidification performance can be improved.

In this embodiment, the guide wall 20 is provided only on the cooling air side of the heat exchange element 17, but if it is also provided on the drying air side, an even higher effect will be achieved. Further, in the present embodiment, the guide wall 20 is configured by the backing plate 19, but the configuration of the guide wall 20 is not limited to this.In short, there is a gap hl between the protrusion wall and the protrusion 18 of the heat exchange element 17. This effect can be achieved if it is a guide wall.In addition, the structure of the heat exchange element 17 is not limited to the shape of a thin plate. It may be provided.

Effects of the Invention As described above, the present invention provides a drying fan and a cooling fan, a partition plate provided to separate the two fans, and a radial 0 protrusion provided on the outer periphery of the fan of this partition plate. By providing a guide wall having a protrusion wall and a gap between each of the protrusions on at least one side of the drying air side and the cooling air side and guiding each air flow to the protrusion wall, It is possible to provide a clothes dryer that has a simple structure, eliminates the need for a seal structure, has high heat exchange capacity, and has good dehumidification performance, and has great effects.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a side sectional view of a clothes dryer according to an embodiment of the present invention, Fig. 2 is a detailed sectional view of the main part, and the third tooth is a detailed perspective view of the main part; FIG. 4 is an enlarged sectional view taken along line A in FIG. 3, and FIG. 5 is a side sectional view of a conventional clothes dryer. 2.Pa...Drum, 6...Motor, 9...
...Circulation wind cylinder, 1Q...Heater, 13...
... Drying fan, 14... Cooling fan,
15... Partition plate, 17... Heat exchange element, 18... Protrusion, 19... Guide wall. Name of agent: Patent attorney Toshio Nakao and 1 other person2-
-- Drum 6 --- Motor, ? s1 figure 9-drop 5L lice trunk IO-1-heater 13--1 fan
7 f, Shikawa Fuse 15~-- Ishi p sword 4 pieces/7- Shikashi Kyouka Akaka 3rd figure 4th figure 2θ

Claims (1)

[Claims] A drying air path having a drum and a heater, a cooling air path for cooling the drying air in this drying air path, a drying fan for blowing drying air, and a cooling fan for blowing cooling air. It is equipped with a fan, a motor that drives both fans, a partition plate provided between both fans, and a heat exchange element having approximately radial protrusions provided near the outer periphery of the fan on this partition plate. The clothes dryer is provided with a guide wall that has a gap with the protruding wall and guides each air flow to the protruding wall between the protrusions on at least one side of the air supply side and the cooling air side.