JPH03254795A - Deelectrifying operation method for clothing drier - Google Patents

Abstract

PURPOSE:To enable deelectrification even in opening a door and taking out clothes from a rotary drum after a drying operation, and completely prevent a user from undergoing an electric shock by turning on a deelectrifying device during an intermittent operation wherein a rotary drum is intermittently rotated with a heater turned off after the drying operation, and in a door open state for taking out dried clothes. CONSTITUTION:When clothes are taken out by opening a door 18 before the prescribed time of a deelectrifying operation is not reached, a control device 6 operates due to an output signal from a door switch 5, thereby turning off power supply to a motor 10, and the rotation of all of a heater 12, a twin-blade fan 24 and a rotary drum 16 is turned off. Only an ion generation device is kept on. As the ion generation device is installed inside the door 18, the air forward of the inside of the door 18 or the air at the position where a user is standing, is ionized, when the door 18 is opened. Consequently, even static electricity charged on the user's body is deelectrified. According to the aforesaid construction, an electric shock can be prevented in taking out clothes from the rotary drum 16, while the ion generation device is being kept on.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a static electricity removal operation method for removing static electricity from a clothes dryer.

[Conventional technology]

A clothes dryer includes an outer box (2) having a door (18) on the front for loading and unloading clothes to be dried, as shown in FIGS. 4 and 5, for example.
8) A motor (10) is suspended on one side of the ceiling inside the box, and a rotating drum (16) serving as a drying chamber rotated by the motor (10) is arranged in the center of the outer box (28). It is.

Then, the rotating shaft of the motor (10) is connected to the rotating drum (16).
) (25) Connect the rotating shaft of the double-winged fan (24) installed behind the exhaust hole on the back side through each pulley.
The belt (21) is connected to the outer periphery of the rotating drum (16) through another pulley (26) provided on the rotating shaft of the motor (lO). In the figure (22) is this belt (
Idler for adding tension to (21), (23
) indicates the idler arm.

In addition, the exhaust hole on the back side of the rotating drum (16) is equipped with a filter (
17> will be provided.

The outer periphery of the double-blade fan (24) is sealed with a felt-like sealing material (30) in a state where its rotation is not inhibited, and as a result, there is a gap between the front side and the back side of the double-blade fan (24) where air does not exchange. It becomes a room.

The back of the outer box (28) is provided with an intake port (31) for taking in outside air for cooling, and the bottom surface is provided with an exhaust port (32) for taking in outside air.
) and a drain port (
29), and a heater case housing a semiconductor heater (12) such as a PTC heater is disposed in front of the rotating drum (16) and at the front lower part of the outer box (28).

A fan case housing the double-blade fan (24) and a heater case housing the heater (12) are connected by an exhaust pipe (33) to form a circulating air path.

In addition, temperature sensors (3) and (4) are installed to detect the exhaust temperature and intake air temperature at the front side exhaust hole and the rear side intake port (31) of the double wing fan (24), respectively, and the outer case (28) is An operation panel (20) is provided below the front door (18) and has a control switch for setting the drying operation time and a progress display section for displaying the progress of the drying operation. A control board incorporating display lamps, a microcomputer, and other electronic components is attached to the . To perform drying operation in this way, the door (
18), put the clothes to be dried into the rotating drum (16), and set the drying time and drying degree using the control switch on the operation panel (20).
0), which rotates. As a result, Bell)
At the same time that the rotary drum (I6) starts rotating due to (21), the rotation of the motor (10) is also transmitted to the double-winged fan (24) via the bell (25), which rotates.

Also, the heater (12) is energized and generates heat.

Then, the outer box (28) is opened by the rotation of the double-winged fan (24).
The air inside is heated by the heater (12) and turned into dry hot air, which is sent into the rotating drum (16) and hits the material to be dried.This heats the material to be dried, and the hot air evaporates from the material to be dried. This becomes moist warm air containing moisture, which is taken in through the intake port (31) and comes into indirect contact with cold outside air exiting from the exhaust port (32) via the double-wing fan (24).

In this way, the double-winged fan (24) functions as a heat exchanger, and the warm air is cooled by the cold outside air and moisture is removed.
The water is sent to the heater (12) again, and the removed moisture is discharged from the drain port (29) to the outside of the outer box (28), and this circulation is repeated to perform a drying operation.

By the way, during the drying operation, at the initial stage of the drying process, there is a lot of moisture contained in the clothes, but as the drying operation progresses and near the end, the moisture contained in the clothes disappears, so friction between clothes, Clothes and rotating drum (16
) Static electricity is generated on the clothing due to friction, and this static electricity charges the clothing, which has a high electrical resistance due to the lack of moisture.

For this reason, when removing clothes from the rotating drum (16) after the drying operation, the user may feel an electric shock due to the static electricity charged on the clothes, or the clothes may stick together due to the static electricity and cannot be separated. Not only was it difficult to perform the work, but there were also inconveniences such as making a sound and feeling an electric shock when releasing it.

Therefore, conventional ion generators for ionizing dry air in a drying drum, as seen in Japanese Patent Application Laid-Open No. 55-73299, have been constructed with a pair of electrodes and a transformer, and a voltage is applied to the transformer. A high voltage application system that applies a high voltage between two electrodes and ionizes the air near the two electrodes is installed at the upstream side of the drying air flowing into the rotating drum, and the drying operation is started. The air flowing into the rotating drum is electrically neutralized by combining air molecules with positive or negative charges with the negative or positive charges on the clothes, and static electricity is removed. There are devices that allow you to take out your clothes without feeling an electric shock.

[Problem to be solved by the invention]

However, in the conventional example, the timing for static elimination is
Since this is done during drying operation when the rotary drum is rotating and the heater and fan are on, static electricity is generated on one hand and static electricity is removed on the other at the same time, and the static electricity removal efficiency is not good and it is difficult to achieve sufficient static electricity removal. It was difficult.

When the clothes are taken out after the drying operation is finished, friction occurs between the clothes and the rotating drum or the user's body, but it has not been possible to remove the static electricity generated at this time.

The purpose of the present invention is to eliminate the disadvantages of the conventional example, improve the static elimination efficiency during operation with the door closed, and
To provide a static electricity eliminating operation method for a clothes dryer, which can eliminate static electricity even when opening a door and taking out clothes to be dried from a rotating drum after the end of operation, and can completely prevent electric shock felt by a user.

[Means to solve the problem]

In order to achieve the above object, the present invention provides a clothes dryer in which a rotating drum serving as a drying chamber, a fan and a heater for sending hot air into the rotating drum are provided in an outer box having a door for entering and exiting clothes to be dried on the front side. In the drying machine, an ion generator as a static eliminator is installed inside the field, and the heater and fan are turned on after the drying operation is completed, and the heater is turned off and the rotary drum is rotated intermittently. The gist is to turn on the static eliminator when the door is open for removal.

[Effect]

According to the present invention, during drying operation when the heater and fan are on and the rotary drum is continuously rotating, the ion generator is turned off and static electricity is not removed, and after the drying operation is finished, the heater is turned off and the rotary drum is rotated intermittently. Since the ion generator is turned on to eliminate static electricity during intermittent operation, static electricity is removed when there is less friction between clothes or between clothes and the rotating drum, and when the amount of static electricity generated is small, static electricity can be removed all at once. .

In addition, when the door is opened and the clothes to be dried are taken out from the rotating drum after the operation is completed, the ion generator is turned on.Moreover, this ion generator is installed inside the door and faces the user, so it can be used easily. Static electricity charged on the human body is also removed, and electric shocks caused by contact between the human body and clothing are also prevented.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

Fig. 1 is a flowchart showing an embodiment of the static elimination operation method for a clothes dryer according to the present invention, Fig. 2 is a vertical side view of a clothes dryer in which the method of the present invention is carried out, and Fig. 5 in the figure shows a conventional example. Components that are the same as those shown have the same reference numerals.

The basic configuration of the clothes dryer shown in FIG. 2 is the same as that shown in FIG. Drums (16
) and a motor (10), and a rotating drum (16).
A double-winged fan (24) is provided behind the exhaust hole on the back of the outer box (28), and is located in front of the rotating drum (16).
A semiconductor heater such as a PTC heater (
12) was established.

In addition, a pulley (2) provided on the rotating shaft of the motor (10)
6) and the outer periphery of the rotating drum (16) with a heald (21), and the idler (22) and idler arm (23) are made to face the belt (21).

In the figure, (3) shows a temperature sensor for detecting the temperature of the exhaust air from the rotating drum (16), which is installed in the exhaust hole on the front side of the double-wing fan (24). It also serves as a means to detect the end. Also, (4) in the figure
shows a temperature sensor that detects the temperature of the outside air that is taken in, which is provided at the intake port (31) on the back side of the double-wing fan (24).

In the clothes dryer having such a configuration, the rotating drum (16)
A drum rotation sensor (15) was provided on the front side of the double-winged fan (24) behind the exhaust hole on the back side. The drum rotation sensor (15) includes a circular plate (15a) with continuous notches around the circumference that rotates in synchronization with the rotating drum (16), as shown in FIG. 3, and a light emitting element. It is composed of a photosensor (15b) consisting of a light receiving element.

Furthermore, an ion generator for ionizing the air in the rotating drum (16) as a static eliminator is provided at a position facing the rotating drum (16) inside the rotary drum (18). As an example, this ion generator is composed of a pair of electrodes and a transformer, as is well known in the art, and by applying voltage to the transformer, a high voltage is applied between the two electrodes, which causes the air near the two electrodes to A high voltage application method is used to ionize.

As described above, as shown in the block diagram of FIG. 3, the control device (6) is controlled by a microcomputer or the like disposed in the operation panel provided below the door (18) on the front side of the outer box (28). The operation switch section (2), temperature sensors (3) (4), lid switch (5) that detects the opening and closing of the door (18), and drum rotation sensor (15) are connected to the input terminal side, and displayed on the output terminal side. the motor (10) and the heald (2) via the amplifier (9), the buzzer (8), and the amplifier (9).
A clutch motor (II) that controls an idler (22) that applies tension to 1), a heater (12), and a high-pressure circuit (14) that is a transformer that constitutes an ion generator.
was connected to the electrode (13). (1) in the figure indicates the power supply.

Next, usage and operation will be explained with reference to the flowchart of FIG.

To perform drying operation, open the door (18) and remove the rotating drum (1).
6) Put the clothes to be dried into the dryer, set the drying time and drying degree using the operation switch section (2) of the operation panel (20), and close the door (18) to output from the control word W (6). energizes the heater (12) and motor (10),
As the rotating drum (16) rotates, the double-winged fan (2
4) also rotates, and the heater (12>) generates heat.

Then, the outer box (28) is opened by the rotation of the double-winged fan (24).
The air inside is heated by the heater (12) and turned into dry hot air, which is sent into the rotating drum (16) and hits the material to be dried, thereby heating the material to be dried, and the hot air evaporates from the material to be dried. This becomes humid warm air containing moisture, which is taken in through the intake port (31) and comes into indirect contact with cold outside air exiting through the exhaust port (32) via the double-winged fan (24).

In this way, the double-winged fan (24) performs a heat exchanger function, and the hot air is cooled with cold outside air to remove moisture, and is sent to the heater (12) again, and the removed moisture is transferred to the drain port. (29) to the outside of the outer box (28), and this circulation is repeated to perform drying operation (stencil buoy, opening).

During this drying operation, no voltage is applied to the high voltage circuit (14), the ion generator is in an off state, and the rotating drum (14) is in an off state.
6) Friction between clothing and clothing and rotating drum (16)
Due to friction, static electricity builds up on clothing.

When this drying operation is completed (Stesopui), the clutch motor (11) is energized by the output from the control device (6), and the bell l for rotating the rotating drum (16) is energized.
- Idler (22) applying tension to (21)
), and the disk (1) from the drum rotation sensor (15) rotating together with the rotating drum (16)
The photosensor (1) on the light emitting element side is inserted through the notch in 5a).
The rotating drum (1
6) and detects the rotation angle of the drum rotation sensor (15).
) Based on the output from the rotary drum (
16) Intermittent operation is performed in which the rotation is temporarily stopped.

During this intermittent operation, the power to the heater (12) is turned off, the ion generator is turned on, and voltage is applied to the high voltage circuit (14), thereby applying a high voltage to the electrode (13), which causes air is ionized.

The air ionized in this way is transferred to the double-winged fan (24
) are sent into the rotating drum (16), and the positively or negatively charged air molecules combine with the negative or positive charges on the clothing to electrically neutralize and eliminate static electricity. (Stesopuni).

If such static elimination operation is carried out for a specified period of time (Stenbutt,
E) Assuming that the static electricity on the clothes has been almost completely eliminated, the power supply (1) is turned off and the operation is completed. Therefore, if you open the door (1B) and take out your clothes, you will not feel an electric shock due to static electricity.

On the other hand, the door (18)
When opening the lid to take out the clothes (stepped), the control device (6) turns off the power to the motor (10) based on the output from the lid switch (5), and the heater (12),
The rotation of the double-wing fan (24) and the rotary drum (16) are all turned off, and only the ion generating BE device remains on (step 1).

When this door (18) is open, the ion generator is installed inside the door (1), so the air in the front of the inside of the door (18), that is, the part where the user's body is located, is ionized. As a result, the static electricity charged on the body is also removed.

Therefore, if the clothes are removed from the rotating drum (16) while the ion generator is in the on state, electric shock can be prevented at this time. After removing the clothes, operate the operation switch section (2>) to turn off the power (1).

Additionally, if the door (18) is opened during drying operation (STESOPRO) (Step C), the rotation of the rotating drum (16) will be temporarily stopped by the output from the lid switch (5) and the machine will go into standby mode (Step C). , even after a certain period of time, the door (18)
If the is not closed again (step wo), the power supply (1)
The power goes off (Stesopwa), and the operation ends midway.

〔Effect of the invention〕

As described above, in the method for eliminating static electricity in a clothes dryer according to the present invention, after the drying operation is completed, the drum is rotated intermittently and the fan is not turned on before static electricity is eliminated, thereby minimizing the generation of static electricity. Furthermore, static electricity can be removed efficiently when the door is opened to take out the clothes, and the static electricity charged on the user's body can also be removed, completely preventing the user from feeling an electric shock when taking out the clothes to dry, allowing them to dry their clothes with peace of mind. machine can be used.

[Brief explanation of drawings]

FIG. 1 is a flowchart of an operation showing an embodiment of the method for eliminating static electricity in a clothes dryer according to the present invention, FIG. 2 is a longitudinal cross-sectional side view showing a clothes dryer in which the method of the present invention is carried out, and FIG. 3 is a block diagram of the same as above. 4 is a perspective view showing a conventional example of a clothes dryer, and FIG. 5 is a longitudinal sectional side view of the same. (1)...Power supply (2)...Operation switch section (3) (4)...Temperature sensor (5)...Lid switch (6)...Control device (7)
)...Display (8)...Buzzer (9)...
・Amplifier (10)...Motor (11)...
・Clutch motor (12)...Heater (13)...Electrode (
14)...High pressure circuit (15)...Drum rotation sensor (15a)...Disc (15b)...
... Photo sensor (16) ... Rotating drum (1
7)...Filter (18)...Door (
20)...Operation panel (21) (23) (24) (26) (29) (31) (33)...Heald (22)...Idler arm...Double wing fan (25)...・Pulley (28) ...Drain port (30) ...Intake port (32) ...Exhaust pipe...Idler ...Heald ...Outer box ...Seal material ...Exhaust port Figure 1

Claims (1)

[Claims] A clothes dryer is equipped with a rotating drum serving as a drying chamber, a fan and a heater that sends hot air into the rotating drum in an outer box that has a door on the front for entering and exiting clothes to be dried, and a static eliminator is installed inside the door. An ion generator is installed to remove the static electricity during intermittent operation in which the heater and fan are turned on and the drying operation is completed, the heater is turned off and the rotary drum is intermittently rotated, and when the door is opened to take out the clothes to be dried. A method of operating a clothes dryer to eliminate static electricity, the method comprising turning on the device.