JP3011540B2 - Clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called drum type clothes dryer, and more particularly to a clothes dryer having a reservation function capable of reserving a drying finish time.

[0002]

2. Description of the Related Art In recent years, drum type clothes dryers having a reservation function capable of reserving a drying finish time have been provided.

[0003] Fig. 9 shows an operation specification at the time of a reservation of such a case, and is an example in which a reservation is made at 23:00 to finish at 7:00 the next morning.

[0004] In this case, when started, regardless of the actual amount of the clothes to be dried, the time required for drying the rated amount of the clothes to be dried is a predetermined amount exceeding the assumed rated amount with respect to the finishing time. The drying operation is started a predetermined time before (in this case, five hours before, at time 2:00) a time set by adding the time required for drying the clothes to be dried and the time of the finishing operation.

[0005] However, in practice, it is rare that clothes to be dried with a rated amount or more are put in the drum, and usually clothes to be dried with a rated amount or less are put in the drum. For this reason, the drying operation is completed to some extent before the finishing operation is started (in this case, for example, about one hour), and the dryer is stopped until the finishing operation is started.

[0006] However, the finishing operation is performed for about 20 minutes, whereby the clothing to be dried which has been cooled at rest is warmed again, and after the finishing operation, the clothing to be dried is operated by the intermittent operation which is operated for a predetermined time every predetermined time. A so-called soft keep operation for preventing wrinkles is performed.

[0007]

In the case of the above, the clothes to be dried are left overlapping with each other at the bottom of the drum during a pause after the drying operation is completed and before the finishing operation is started. There was a problem that dry clothes wrinkled.

In addition, since the finishing operation is performed after the wrinkles are formed, the wrinkles are further strengthened.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a clothes dryer capable of finishing clothes to be dried without wrinkling during a reservation operation.

[0010]

In order to achieve the above object, in a clothes dryer according to the present invention, a drum for containing clothes to be dried, a driving device for rotating the drum, and a blower for blowing air into the drum are provided. The apparatus includes a heater that heats the wind, and has a reservation function capable of reserving a dry finish time. When the reservation is made, the above devices and heaters are used for a predetermined time before the dry finish time. Start the drying operation and continuously energize the heater just before the drying finish time
During to be those which to perform the finishing operation for continuously rotating the drum while supplying hot air, between after the completion of the drying operation until finishing operation start, the <br/> drum without energizing the heater characterized in that to carry out the operation to Ketsukai rolling.

[0011]

[0012]

According to the above-mentioned means, the operation of intermittently rotating the drum without energizing the heater is performed during the time period in which the clothes to be dried are conventionally stopped, whereby the clothes to be dried are agitated. Wrinkling of the dried clothes is prevented.

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 2 shows the entire construction of the clothes dryer. A drying clothes entrance 2 is formed at the center of the front part of the outer box 1 and a door 3 for opening and closing the entrance 2 is provided. It is pivoted.

A drum 4 is accommodated in the outer case 1. The accommodated drum 4 has a large-diameter opening 5 formed in the front surface thereof and a drum support provided in a front portion in the outer case 1. 6 is rotatably supported, and the shaft 7 provided at the center of the rear surface is
A fan casing 8 provided at the rear of the outer box 1 is rotatably supported.

In the fan casing 8, there is disposed a fan 9 having a wing portion on each of the front side and the rear side and also serving as a double-winged heat exchanger. This fan 9 is mounted on the bottom of the outer box 1. The motor 10 is arranged to rotate via a belt 11.

Here, when the fan 9 is rotated, the air in the drum 4 is sucked into the front part in the fan casing 8 through the filter 12 in the inner part of the drum 4, and the air outside the machine is transferred to the outer case back. The air is sucked into the rear portion of the fan casing 8 from the outside air inlet 14 of the plate 13, and thereby, the air inside the drum 4 and the air outside the machine are heat-exchanged in contact with the fan 9, Air dehumidification is performed.

Thus, the dehumidified air in the drum 4 is
Thereafter, it is supplied into the drum 4 through the duct 15 shown in FIG. 3, and thus the fan casing 8 and the fan 9, the motor 10, the belt 11, and the duct 15
Function as a blower that blows air into the drum 4.

A heater 16 is provided at the end of the duct 15 of the blower. When the heater 16 is turned on and generates heat, the air supplied to the drum 4 is heated, and hot air has become so that is supplied when no heat off, the air supplied into the drum 4 is not heated, the drum 4 so that the cold air is supplied.

Further, as shown in FIG. 2, the motor 10 rotates the drum 4 via the belt 17, so that the motor 10 and the belt 17 function as a driving device. Has become.

A portion of the lower part of the drum support 6 facing the inside of the drum 4 functions as a clothes amount detecting means for detecting the amount of clothes to be dried and a drying degree detecting means for detecting the degree of drying of the clothes to be dried. A pair of electrodes 18 functioning as a pair are provided.

On the other hand, FIG.
The operation / display panel 19 shown in FIG. This operation
The display panel 19 includes a key switch 20 for turning on / off the power, a key switch 21 for starting or temporarily stopping the operation, a key switch 22 for setting a current time and a reservation time, a key switch 23 for switching the strength of a heater, There are a key switch 24 for selecting a driving course, a digital display 25 for displaying the required time and the remaining time of the driving, and also for displaying the current time and the reserved time, and the like. , "Clock", then "hour", "minute", and then "clock" to set the current time, then "reserve"
Is pressed, and then "hour" and "minute" are pressed to set a reservation time (drying finish time). Then, by pressing the key switch 21, the reservation operation is started.

A microcomputer 26 shown in FIG. 5 is provided in the outer casing 1 as operation control means, and a DC power supply is supplied to the microcomputer 26 from a power supply 27 via a rectifier circuit 28. .

The microcomputer 26 receives a clothing amount detection signal and a dryness detection signal from the electrode 18 via a detection circuit 29.

FIG. 6 shows the detection circuit 29 in detail. A relatively high voltage is obtained each time the clothes to be dried come into contact with the electrode 18, and the voltage is measured by the contact frequency measurement circuit 3.
By counting at 0, the amount of the clothes to be dried is detected and input to the microcomputer 26.
The voltage obtained each time the clothes to be dried comes into contact with the electrode 18 increases gradually as the drying proceeds, as shown in FIG. 7. descend. Therefore, by passing this through a peak hold circuit 31 shown in FIG. 6, the degree of drying of the clothes to be dried is detected, and is input to the microcomputer 26 via the buffer circuit 32.

Based on these inputs, the microcomputer 26 operates the heater 16 (16a, 16a).
The energization of b) and the energization of the motor 10 are performed by three sets of relays 33 to
The control is performed via a drive circuit 36 composed of 35.

The microcomputer 26 additionally includes a key switch 20 of the operation / display panel 19.
24, a switch signal is input from a switch input unit 37, a temperature detection signal is provided from a temperature sensor 38 (see FIG. 2) provided to detect the temperature in the drum 4, and a clock pulse generation circuit is provided. Clock pulses are respectively input from 39, and a power switch 40 is connected to a circuit from the power supply 27 to the heater 16 (16a, 16b) and the motor 10.

Next, the operation of the above configuration will be described. FIG.
As shown in the figure, suppose that the time is currently 23:00, and a reservation is made to finish at 7:00 the next morning.

In this case, when the microcomputer 26 is started, the microcomputer 26 sets the estimated rated time to the time required for drying the rated amount of the clothes to be dried, regardless of the actual amount of the clothes to be dried. The drying operation is started from a predetermined time (5 hours before at time 2:00 in this case) set by adding the time required for drying a predetermined amount of clothing to be dried exceeding the amount, and further adding the time for finishing operation. . A lot
Usually, since the clothes to be dried having a rated amount or less are put in, the drying operation is completed to some extent before the start of the finishing operation (in this case, for example, about one hour before).

After the drying operation is completed, a soft keeping operation is performed until the finishing operation is started. This soft keeping operation is performed for a predetermined period of time (for example, 5 minutes).
A intermittent operation for 10 seconds each) operation for each minute, each <br/> operation, subjected while rotating the drum 4, blown into the drum 4, i.e., the cool air not turn on the heater 16
It is to perform with the contents of the paper.

After the soft keeping operation, the finishing operation is performed for, for example, 20 minutes immediately before the finishing time. In this finishing operation, the drum 4 is continuously rotated and the drum 4 is rotated.
And the heater 16 is turned on , ie, continuous energization
So that the hot air is supplied .
This warms the clothing to be dried and makes it softer
The finished condition can be obtained .

After reaching the finishing time, the same soft keeping operation as described above is performed thereafter.

As described above, according to the present configuration , the drum is intermittently rotated without energizing the heater during the period of time when the conventional operation is stopped.
This is a soft keeping operation that allows the clothes to be dried to be stirred without leaving it, so that the clothes to be dried can be prevented from wrinkling.

[0035]

[0036] The present invention is not limited to the embodiment above and shown in the drawings, it may be carried out appropriately modified within a scope not departing from the gist.

[0037]

The clothes dryer of the present invention is as described above, and has the following effects.

According to the first aspect of the present invention, the clothes dryer includes a drum for storing the clothes to be dried, a driving device for rotating the drum, a blowing device for blowing air into the drum, and a heater for heating the wind. It has a reservation function that can reserve the dry finish time, and when that reservation is made,
The drying operation from a predetermined time before the drying finish time by the respective devices and the heater begins drying finish time heater immediately before
The drum is continuously rotated while supplying hot air
To be those which to perform the finishing operation, during a period from after the completion of the drying operation until finishing operation start, the heater
By you perform operation for between Ketsukai rolling drum without energizing, at the time of reservation operation can be finished without conditioned wrinkles to be dried clothes.

[0039]

[Brief description of the drawings]

FIG. 1 is a time chart for explaining an operation of an embodiment of the present invention.

FIG. 2 is an overall longitudinal side view with a part broken away.

FIG. 3 is an overall front view.

FIG. 4 is an enlarged front view of an operation / display panel.

FIG. 5 is a schematic electric configuration diagram.

FIG. 6 is a diagram of a circuit that processes a signal detected at an electrode and further functions based on the signal.

FIG. 7 is a diagram showing the relationship between the electrical resistance of the clothes to be dried and the drying rate.

FIG. 8 is a diagram showing a relationship between a voltage detected by an electrode and a drying rate.

FIG. 9 is a diagram corresponding to FIG. 1 showing a conventional example.

[Explanation of symbols]

4 is a drum, 8 is a fan casing (blowing device), 9 is a fan (blowing device), 10 is a motor (blowing device / driving device), 15 is a duct (blowing device), 16 is a heater, 22
Denotes a key switch, and 26 denotes a microcomputer.

Claims (1)

(57) [Claims] 1. A drum for storing clothes to be dried, a driving device for rotating the drum, a blowing device for blowing air into the drum, and a heater for heating the wind, and a drying finish time can be reserved. It has a possible reservation function, and when the reservation is made, the drying operation by the above-mentioned devices and the heater is started from a predetermined time before the drying finish time, and the heater is continuously energized and hot air is supplied just before the drying finish time. Naga
It is those which to perform the finishing operation for continuously rotating the Luo drum, and during said drying after the end of operation until finishing operation start, to perform the operation for between Ketsukai rolling drum without energizing the heater A clothes dryer characterized in that: