JPH03155898A - Cloth dryer - Google Patents

Abstract

PURPOSE:To obtain a cloth dryer with low noise and high dehumidification ratio by providing a rotary drum, a motor to drive a circulating fan, and a heat exchanger, providing plural circulating fans by superimposing in an axial direction at the rear part of the rotary drum, rotating them independently, and providing an independent casing at every fan. CONSTITUTION:When a first motor 6 and a second motor 7 are rotated, and a first circulating fan 4 and a second circulating fan 5 are rotated, a circulating blast is sent. The circulating blast set at high temperature and humidity by snatching humidity from a material to be dried such as cloth, etc., housed in the rotary drum 2 goes to a blast with low temperature and humidity by applying heat exchange with the heat exchanger 11. The circulating blast set at low temperature and humidity is heated with a heater 12, then, it goes to the one with high temperature again, and is inputted to the rotary drum 12, and snatches the humidity from the material to be dried. In such a way, the drying of the material to be dried housed in the rotary drum 12 is progressed. Since the first and second circulating fans are provided by superimposing in the axial direction at the rear part of the rotary drum 12, the blasting performance of the circulating blast that is the air for drying can be remarkably increased.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a dehumidifying clothes dryer.

Conventional Technology A conventional example is shown in FIG. In FIG. 5, 41 is the main body of the clothes dryer (hereinafter simply referred to as the main body).

Reference numeral 42 denotes a clothes storage, i.e., a rotating drum, rotatably provided in the main body 41; 43, a door for introducing drying materials into the rotating drum 42; and 44, a heat exchanger having both functions of blowing air and exchanging heat. A flexible sealing material 45 having a substantially ring shape and a V-shaped cross section is fixed to the outer periphery of the heat exchange fan 44 .

46, a motor for rotating the rotating drum 42 and the heat exchange fan 44; 47, a back plate covering the rear surface of the main body 41; 48;
is a partition plate that forms a ventilation path for air flow on both sides of the heat exchange fan 44, and together with the fan cover plate 49, forms a casing that encloses the heat exchange fan 44 and has a swirl chamber 50. Reference numeral 51 designates a circulating air cylinder that guides hot and humid drying air to the heater 52, 53 designates an exhaust hole for discharging the intake cooling air, and 54 designates a drainage hole for discharging dehumidified water to the outside of the machine. Further, c-d indicate drying air and cooling air, respectively.

When the motor 46 rotates and the heat exchange fan 44 rotates in the clothes dryer, air flows C and d are generated. The hot and humid drying air C that has dried the object to be dried is cooled and dehumidified by the cooling air d in the blade portion of the heat exchange fan 44. The dehumidified drying air C is heated by the heater 52 and blown into the rotating drum 42 again. In this way, the clothes are dried. Of course, at this time, the rotating drum 42 is also being rotated by the motor 46.

Problems to be Solved by the Invention Such conventional clothes dryers have the following problems. Auxiliary heat sources such as zeolite,
When increasing the amount of heat by using a 200V (3000W) heater, it is necessary to increase the amount of circulating air. In order to increase the amount of circulating air, the number of rotations of the heat exchange fan 44 must be increased. However, in the conventional configuration, by increasing the rotational speed of the heat exchange fan 44, wind noise is first generated by the blades of the heat exchange fan 44.

Secondly, since the amount of circulating air increases, the amount of circulating air leaking from the seal portion of the heat exchange fan 44 increases, resulting in a decrease in the dehumidification rate.

Therefore, the present invention is an attempt to solve the problems of the conventional configuration described above, and its primary purpose is to provide a clothes dryer that has low noise and a high dehumidification rate. be. The second purpose is to provide a second means to achieve the first purpose.

Means for Solving the Problems The first means for achieving the above-mentioned object consists of a clothes dryer main body, a rotating drum rotatably provided within the main body, and a circulation fan provided at the rear of the rotating drum. , a motor for driving the rotating drum and the circulation fan, and a heat exchanger are provided, and a plurality of the circulation fans and the rotating drum are stacked in the axial direction at the rear thereof, each rotating independently, and each independently The clothes dryer is equipped with a casing.

The second means for achieving the second purpose is a clothes dryer main body, a rotary drum rotatably provided within the main body,
A clothes dryer in which a circulation fan is provided at the rear of the rotating drum, and a plurality of fans are provided stacked in the radial direction at the rear of the rotating drum, each fan is housed in one casing, and each fan rotates independently. That is.

By adopting the configuration of the first means, since a plurality of fans are provided, the circulating air volume can be increased without significantly increasing the rotation speed of each fan, and the air blowing capacity of the circulating fan can be increased. improves.

Moreover, by adopting the configuration of the second means, it is possible to make the clothes dryer a simple and thin configuration which cannot be obtained by the first means.

Embodiments Hereinafter, embodiments of the first means of the present invention will be described with reference to the accompanying drawings. In FIGS. 1 and 2, 1 is the main body of the clothes dryer (hereinafter simply referred to as the main body), 2 is a clothes storage compartment rotatably provided in the main body 1, that is, a rotating drum, 3, and the interior of the rotating drum 2. 4 is a first circulation fan for blowing circulating air; 5 is a second circulation fan; 6, the rotary drum 2 and the first circulation fan 4; 7 is a second motor that rotates the second circulation fan 5; 8 is the main body 1;
A back plate covering the rear surface, 9 a first circulation casing containing the first circulation fan 4, 10 a second circulation casing containing the second circulation fan 5, and 11 supplying hot and humid drying air. This is a heat exchanger for dehumidifying. The heat exchanger 11 may be cooled by either air cooling or water cooling. 12 is a heater, and 13 is a drainage hole for draining dehumidified water to the outside of the machine. As described above, in this embodiment, two circulation fans, a first and a second circulation fan, are provided at the rear of the rotating drum 2 and stacked in the axial direction. Further, a indicates the flow of drying air.

The operation of this embodiment will be explained below. When the first motor 6 and the second motor 7 rotate, and the first circulation fan 4 and the second circulation fan 5 rotate, circulating air is blown. The circulating air, which has become hot and humid by removing moisture from the clothes and other items to be dried stored in the rotating drum 2, is heat exchanged by the heat exchanger 11 and becomes low temperature and humid. The circulating air, which has become low temperature and low humidity, is heated by the heater 12, becomes high temperature again, enters the rotating drum 2, and removes moisture from the dried material. In this way, the drying of the material housed in the rotating drum 2 progresses.

In this embodiment, two circulation fans, the first and second, are stacked in the axial direction at the rear of the rotating drum 2, so the drying time is faster than in a conventional clothes dryer. This greatly increases the ability to blow circulating air, which is used for commercial purposes.

Therefore, an auxiliary heat source such as zeolite or 200V (300V
Even when increasing the amount of heat using a heater for
It is possible to obtain the necessary air volume, and there is no problem of excessive temperature rise of the material to be dried due to low air volume (and the drying time can be shortened. Since the device 11 is used to dehumidify the hot and humid circulating air, the circulating air path before and after the heat exchanger 11 is sealed, eliminating leakage of the circulating air and improving the dehumidification rate.

In this embodiment, there are two circulation fans, the first and second, but it is of course possible to configure the circulation fan with three or more. In addition, with this configuration, without increasing the amount of heat, that is, 10
When operating with a 0V (1500W) heater,
Of course, it is also possible to use a method in which only the first motor 6 is started and only the first circulation fan 4 is rotated.

Next, an embodiment of the second means will be described using FIGS. 3 and 4. Components having the same configuration as the embodiment of the first means described above will be given the same reference numerals, detailed explanations will be omitted, and only differences will be explained. 21 is a first circulation fan for blowing circulating air, and 22 is a second circulation fan, both of which are provided at the rear of the rotating drum 2 so as to overlap in the radial direction. 23, a first motor for rotating the rotating drum 2 and the first circulation fan 21; 24, a second motor for rotating the second circulation fan 22; 25, a first motor for rotating the first circulation fan 21 and the second circulation fan 21; A circulation casing enclosing a circulation fan 22, b indicates the flow of drying air.

The operation of this embodiment is the same as the embodiment of the first means described above, and the explanation thereof will be omitted. The differences between this embodiment and the embodiment of the first means are firstly the configuration of the circulation casing and secondly the capacity of the rotating drum 2. In the embodiment of the first means, two circulation casings were required, but in the configuration of this embodiment, only one circulation casing is required. In other words, the number of parts can be reduced compared to the configuration of the first means.

Moreover, the clothes dryer of this embodiment naturally has a larger capacity of the rotating drum 2 than that of the embodiment of the first means. In other words.

If the capacities of the rotating drums 2 are the same, the clothes dryer can have a thin structure.

In the case of this embodiment as well, it is not necessary to limit the number of circulation fans to two, the first and second, and the configuration may include three or more circulation fans. In addition, 1ooV (1500W) can be achieved without increasing heat amount.
) If the first motor 23 is operated with a heater for
Of course, there is no problem in using the method in which only the first circulation fan 21 is started and only the first circulation fan 21 is rotated.

Furthermore, it is of course possible to use a combination of the first means and the second means at the same time.

Effects of the Invention As described above, with the configuration of the first means, by providing a plurality of circulation fans stacked in the axial direction, the ability to blow circulating air can be increased, and even when the amount of heat is increased, the clothes Drying operation can be performed without excessive temperature rise, and drying time can also be shortened. Also, since a heat exchanger is used, there are no sliding parts before and after the heat exchanger.
Since the circulation path therein is sealed, it is possible to provide a clothes dryer that eliminates leakage and improves the mixing ratio. Moreover, if the second means is used, in addition to the effects of the first means, it is possible to provide a clothes dryer with a simpler and thinner structure.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a clothes dryer which is an embodiment of the first means, Fig. 2 is a side sectional view of the same essential parts, and Fig. 3 is a clothes dryer which is an embodiment of the second means. FIG. 4 is a side sectional view of the same essential parts, and FIG. 5 is a side sectional view of a conventional clothes dryer. 1... Clothes dryer body, 2... Rotating drum, 4.2
1...First circulation fan, 5.22...Second circulation fan, 6.23...First motor, 7.24...
Second motor, 9... First circulation casing, 10.
...Second circulation casing, 11...Heat exchanger, 25
...Circulation casing.

Claims (2)

[Claims] (1) A clothes dryer main body, a rotating drum rotatably provided within the main body, a circulation fan provided at the rear of the rotating drum, a motor that drives the rotating drum and circulation fan, and a heat exchanger. A clothes dryer comprising: a plurality of circulation fans stacked in the axial direction at the rear of the rotating drum, each rotating independently, and each having an independent casing. (2) A clothes dryer main body, a rotating drum rotatably provided within the main body, a circulation fan provided at the rear of the rotating drum, a motor that drives the rotating drum and circulation fan, and a heat exchanger. A clothes dryer comprising: a plurality of circulation fans stacked in the radial direction at the rear of the rotating drum; each fan is housed in one casing; and each fan rotates independently.