JPS6268498A - 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 Field of Industrial Application This invention relates to a dehumidifying type clothes dryer for drying clothes and the like.

2. Description of the Related Art A conventional dehumidifying clothes dryer of this type is disclosed in, for example, Japanese Patent Application Laid-open No. 58
As shown in Japanese Patent No. 67997, the structure was as shown in FIG.

In FIG. 5, 1 is an outer frame of the dryer, 2 is rotatably installed in the outer frame 1 and is a clothes storage, that is, a drum, 3 is a front door for putting the items to be dried into the drum 2, and 4 is a dryer outer frame. 1 is a heat exchange type blower, and a substantially ring-shaped flexible sealing material 6 is fixed to the outer circumference of the heat exchange type blower. 8 is a motor that rotates the heat exchange type blower 4; 7 is the heat exchange type blower 4;
8 is a partition plate that partitions the air flow on both sides of the heat exchange type blower 4 from the ventilation path portion;
9 is a circulation duct for guiding drying air, and a heater 10 is provided in the middle. 11 is an exhaust port for exhausting the intake cooling air. a.

b indicates the flow of drying air and cooling air, respectively.

12 is a drain port for discharging dehumidified water to the outside of the machine.

The motor 6 rotates, and the heat exchange type blower 4 rotates.

Then, air flows a and b are generated, and the hot and humid drying air used to dry the clothes is cooled and dehumidified by the cooling air in the blade portion of the heat exchange type blower 4.

The dehumidified drying air is heated by the heater 10 and blown into the drum 2 again, thus drying the clothes.

Problems to be Solved by the Invention However, with the above configuration, in order to further increase the dehumidification ability, that is, to further increase the heat exchange ability of the heat exchange type blower, the heat transfer area of the heat exchange type blower, that is, the blade surface area needs to be expanded further. Expanding the heat transfer area means increasing the size of the heat exchange type blower, which poses the problem of making the clothes dryer itself larger, and since the heat exchange type blower itself has a rotating structure, it is easy to increase the size. Therefore, it was difficult to improve heat exchange performance. In addition, clothes dryers have maximum values for drying air volume and cooling air volume from the viewpoint of dehumidification capacity and heat exchange performance.
Heat exchange type blowers cannot independently adjust the blowing of drying air and cooling air, and therefore have a problem in that it is extremely difficult to optimally design the air blowing amount.

Therefore, in view of the above problems, the present invention realizes a clothes dryer with good heat exchange performance and high dehumidifying ability, easily realizes the optimal drying air and cooling air volume for the clothes dryer, and is compact. This provides a highly practical clothes dryer.

Means for Solving the Problems In order to achieve this object, the clothes dryer of the present invention has a circulation fan and a cooling fan coaxially arranged, a partition wall provided between both fans, and a partition wall between the two fans. The fan includes a substantially radial heat exchange element provided on the outer periphery of the fan, and a blade portion of at least one of the circulation fan and the cooling fan is made to protrude beyond the outer diameter of the main plate facing the partition wall.

Function: With this configuration, drying air and cooling air are blown by the circulation fan and the cooling fan, and both airs are heat exchanged in the heat exchange element section to dry the clothes, but since the heat exchange element is stationary, It is easy to increase the size of the heat exchange element in order to increase the dehumidification capacity, that is, the heat exchange capacity, and the blades of the partition wall provided between the two fans protrude more than the fan main plate facing the partition wall. Because of its structure, heat exchange is also performed in the part of the partition wall that faces the outer periphery of the fan main plate, so the minimum number of heat exchange elements is sufficient, making it possible to create a compact and practical clothes dryer. It will be possible to realize this opportunity.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIG. In FIG. 1, components that are the same as those of the conventional example are given the same numbers and detailed explanations will be omitted.

1 is the dryer outer frame, 2 is the drum, 3 is the front door, 13.1
4 is a circulation fan and a cooling fan installed on the same axis; 15 is a partition wall installed between both fans 13 and 14;
．． 14 rotating shafts 18 pass through it. 16 is the partition wall 15
This is a substantially radial heat exchange element that protrudes from both sides near the outer periphery of the fan. The heat exchange element 16 and the partition wall 16 may be integrated or separate.

6 is a motor, 7 is a casing, 8 is a partition plate that divides the air flow flowing on both sides of the heat exchange element 16 with a ventilation passage, 9 is a circulation duct, 1o is a heater, and the drying air path exchanges heat with the drum 2. It is formed by the side of the element 16 facing the drum, the circulation duct 9, and the heater 1Q. On the other hand, the cooling air path is connected to the air intake port 17, the outside facing side of the heat exchange element 16, and the exhaust port 1.
8. 12 is a drain port. a, b
indicate the flow of drying air and cooling air, respectively.

FIG. 2 is a detailed sectional view of the vicinity of the heat exchange element 16, in which the circulation fan 13 and the cooling fan 14 are connected to the main plate 13+L, respectively.
, 14a, and blade portions of blade portions 13b, 14b, and the outer periphery of the blade portions 13b, 14b protrudes from the outer periphery of the main plate 13a, 14a of each fan. Similarly, FIG. 3 is an enlarged cross-sectional perspective view of the main part.

The operation of the clothes dryer configured as above will be explained below. When the power is turned on and the motor 6 rotates the circulation fan 13, the cooling fan 14, and the drum 2, the respective fans 13 and 14 generate a drying air flow a and a cooling air flow. The drying air a heats the clothes in the drum 2 after being heated by the heater 10, and is then blown by the circulation fan 13 to the side of the heat exchange element 16 facing the drum, passes through the circulation duct 9, and returns to the heater 10. Head in the direction. The cooling air is taken in through the intake port 17, and after being blown to the outside facing side of the heat exchange element 16 by the cooling fan 14, it is exhausted to the outside of the machine through the exhaust port 11.

Then, both air flows next to each other with a thin plate constituting the heat exchange element 16 in between, and at this time, heat transfer occurs from the high temperature and high humidity drying air to the low temperature cooling air. The air is cooled, the water contained therein 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 16, that is, the heat exchanger is stationary, it is easy to increase the size of the clothes dryer, and it is easy to realize a machine with good heat exchange performance, that is, high dehumidification capacity. Also, the main plate 13a of the circulation fan 13 and the cooling fan 14.

By protruding the blade portions 13b and 14b from the outer periphery of the fan 14a, heat exchange is also performed near the outer periphery of the main plates 13a and 14a of the partition wall 15 provided between both fans 13 and 14, so that the heat exchange element 16 heat exchange areas can be minimized. Therefore, as a result, the heat exchange element 16 can be significantly downsized, and a small and highly practical clothes dryer can be provided.

In this embodiment, the shape of the heat exchange element 16 is wavy, but the same effect can be achieved by simply forming protrusions on both sides of a flat plate.

Next, another example of this example will be described.

FIG. 4 shows another embodiment, in which the outer diameter of the circulation fan 13 is larger than the outer diameter of the cooling fan 14.
In addition, only the blade portion 13b of the circulation fan 13 protrudes from the outer periphery of the main plate 13&. Even if at least one of the two fans 13, 14 has the above shape, the same effect can be obtained.

Effects of the Invention As described above, the present invention provides a partition wall passing through the rotating shaft between both the circulation fan and the cooling fan, and a substantially radial heat exchange element provided near the outer periphery of the partition wall. In a clothes dryer equipped with a cooling fan, in particular, by having a blade protrude from the outer periphery of the main plate of at least one of the circulation fan and the cooling fan, direct heat exchange is performed also at the partition wall provided between the two fans. Therefore, the heat exchange area of the heat exchange element can be minimized, and a small and highly practical clothes dryer can be provided.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a clothes dryer according to an embodiment of the present invention, Fig. 2 is a sectional view of the same main part, Fig. 3 is a partially cutaway enlarged perspective view of the main part, and Fig. 4 is a FIG. 5 is a sectional view of a main part of another embodiment of the present invention, and FIG. 5 is a side sectional view of a conventional clothes dryer. 2...Drum, 6...Motor, 9.River...Circulation duct, 1o...Seater, 13.Mountain...
Circulation fan, 13a...Main plate, 13b...
...Blade part, 14...Cooling fan, 14&...
...Main plate, 14b...Blade part, 15...
...Partition wall, 16...Heat exchange element. Name of agent: Patent attorney Toshio Nakao and one other person? −
--Drum No. 2 Fig. f3--Ichipaku l Ai Fan/3 (L--Life board Fig. 5 6 -11 Heag

Claims (1)

[Claims] A drying air path including a circulation duct containing a drum and a heater, a cooling air path for cooling the drying air in this drying air path, a circulation fan for blowing drying air, and a cooling air path. A cooling fan that blows air, a motor that drives both fans, a partition wall that separates both fans and has the rotation shaft of the fan passed through, and a substantially radial heat source installed near the outer periphery of the fan on this partition wall. a replacement element, and at least one blade of the fan protrudes from an outer periphery of a main plate facing a partition wall.