JPS62164499A - 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 [Technical Field of the Invention] The present invention relates to a clothes dryer having a function of preventing wrinkles from forming on clothes after a drying operation is completed.

[Technical Background of the Invention] Traditionally, clothes dryers have generally been of the drum type, in which the clothes to be dried are stored in the drum, and the clothes to be dried are agitated by rotating the drum in this state. Warm air is supplied and brought into contact with the clothes to be dried, thereby drying the clothes to be dried.

[Problems with the background art] In a dryer that performs the drying operation as described above, if the dried clothes are left in the drum without being immediately removed from the drum after the operation is finished, the clothes may become folded. The problem is that clothes get wrinkled when they get cold and carry the weight of other clothes for long periods of time.

[Object of the Invention] The present invention has been made to solve the above-mentioned problems, and therefore, the purpose is to prevent wrinkles from forming on clothes after the drying operation is completed, and to provide a dedicated display for displaying the operating status. To provide a clothes dryer that can be clearly identified without requiring a container.

[Summary of the Invention] The present invention is designed to rotate the drum intermittently after the end of normal drying operation, thereby changing the top and bottom of the clothes to prevent wrinkles, and to keep the drum in this intermittent operation state. By using an indicator that displays numbers during the drying operation mentioned above, by displaying it in an expression other than numbers,
It is characterized in that the execution of the wrinkle prevention operation, which is an intermittent operation after the end of the normal drying operation, can be clearly distinguished from the above-mentioned normal drying operation by using a display for other indications. be.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. First, in FIG. 2, reference numeral 1 denotes the outer box of the entire clothes dryer, inside of which a drum 2 is rotatably supported, and a clothes entrance/exit 3 leading into the drum 2 and the entrance/exit 3 on the front side. A door 4 for opening and closing is provided. Reference numeral 5 designates a fan casing disposed behind the drum 2 inside the outer box 1. A double-blade fan 6 is disposed inside the fan casing, and the fan 6 and the drum 2 are connected by a motor 7 to a belt transmission mechanism 8. It is designed to be rotationally driven through an angle of 9°. 10 is an exhaust port formed in the center band of the rear face of the drum 2 facing the intake port 11 of the fan casing 5; 12 is a filter that covers the exhaust port 10; and 13 is a front surface of the tram 2 facing the exhaust port 10. An intake port 14 is formed in the lower part of the part, a duct is provided connecting the intake port 13 and the discharge port 15 of the fan casing 5, and 16 is a heater disposed in the duct 14 facing the intake port 13. In addition, 17 is an exhaust temperature sensor made of, for example, a thermistor, which is arranged at the intake port 11 of the fan casing 5, and 18 is a dryness sensor, which is made of, for example, an electrode, which is arranged facing inside the drum 2. . In addition, numeral 19 is a back plate of the outer box 1, which has an outside air intake port 20 formed in its central band and an outside air discharge port 21 at its lower part. Also, 22 is a circuit board arranged at the upper front side inside the outer box 1,
In addition to this, the main controller 23 shown in FIG. Drive circuit 24. DC circuit 25. A large number of electronic components constituting the clock pulse generation circuit 26 and the like are arranged. Here, the main control device 23 is, for example, a microcomputer, and a DC circuit 25 is connected to its power terminal. Further, the exhaust temperature sensor 17 and the dryness sensor 18 are connected to the input terminal of the main controller 23, as well as a clock pulse generation circuit 26, and a start switch 27 for starting the drying operation and a start switch 27 for opening and closing the above section. Door switch 28 that responds
are connected. A drive circuit 24 and a display 29 are connected to the output terminal of the main control device 23. The motor 7 and the heater 16 are connected to the output terminals of the drive circuit 24, and a power supply 31 controlled by a power switch 30 is connected to the power supply terminals of the motor 7 and the heater 16 and the input terminal of the DC circuit 17. are connected. On the other hand, the display device 29 is composed of, for example, three sets of 7-segment light emitting diodes, and the three sets are arranged horizontally on a panel 32 disposed at the upper front of the outer box 1 as shown in FIG. The power switch 30 and start switch 27 are arranged below the power switch 30 and the start switch 27.

Now, in the case of the above-mentioned < 474, first, open the door 4.
When the door 4 is closed, the power switch 30 is operated, and the start switch 27 is operated, the main control device 23 starts operating and the first operation starts. Then, the motor 7 and the heater 16 are energized through the drive circuit 24. Therefore, when the motor 7 starts, the heater 16 generates heat, and the motor 7 rotates the drum 2 via the belt transmission mechanism 9 and rotates the fan 6 via the belt transmission mechanism 8. Therefore, the clothes to be dried stored in the drum 2 are agitated, and the air in the drum 2 is sucked into the fan casing 5 from the suction port 11 through the filter 12 and the exhaust port 10, and further into the duct 14 from the discharge port 15. Circulation is started in which the air is taken out through the duct 14 and returned into the drum 2 from the intake port 13.

On the other hand, at the same time, the air outside the machine is sucked into the fan casing 5 from the outside air intake port 20 and is discharged outside the machine from the outside air outlet 21, which is repeated. The air outside the aircraft is connected to fan 6.
The air inside the drum 2 is dehumidified. Therefore, air that has been dehumidified and heated by the heater 16 in the duct 14, ie, warm air, is successively supplied into the drum 2, and the clothes to be dried are gradually dried in contact with this warm air. At the start of such a drying operation, the main controller 23 uses a detection signal given from the exhaust temperature sensor 17 to check the rise in exhaust temperature, and based on that, determines the required time to complete the drying. The time is predicted and the prediction result is given to the display 29, which causes the display 29 to display the predicted time in numbers as shown in FIG. Incidentally, in FIG. 4, the number r200J is shown as an example, and its unit is "minutes" displayed on the right side of the display 29.

Therefore, in this case, the expected drying time is 200
You can see that it takes [minutes].

This display value gradually decreases with the passage of time, so that the remaining required time is sequentially displayed. On the other hand, the dryness sensor 18 facing inside the drum 2
From the main controller 23 is a signal indicating the degree of dryness of the clothes to be dried.
Based on this, the main controller 23 monitors the degree of dryness of the clothes to be dried, and when a predetermined degree of dryness is reached, the power supply to the motor 7 and heater 16 is cut off through the drive circuit 24. Therefore, at this point, the rotation of the drum 2 and the fan 6 is stopped, and the heat generation of the heater 16 is also stopped.
Drying operation is terminated. Note that the degree of dryness of the clothes to be dried can also be detected by detecting the exhaust temperature using the exhaust temperature sensor 17. Then, after the normal drying operation is completed as described above, the main controller 23 intermittently energizes the motor 7 through the drive circuit 24, thereby causing the drum 2 to rotate intermittently. Due to this intermittent rotation of the drum 2, the drum 2
After drying, the clothes inside the dryer can be changed over and over again, meaning that they are not left folded and are gradually cooled while being stirred from time to time. can prevent wrinkles. Also, while performing this operation, the display 2
9 is a display other than a number, for example, as shown in FIG. 1, a display indicating that among the light emitting diode segments of each set, those existing on the outer periphery are caused to emit light repeatedly in the order indicated by arrows, is displayed. This makes it possible to clearly know that a so-called wrinkle prevention operation, which is an intermittent operation state after the drying operation, is being performed, distinguishing it from the previous drying operation. Moreover, in this case, the display 29 that displays the
is originally a display during drying operation, especially in the case of this embodiment, it displays the required time based on the prediction until the end of drying, and since such a display 29 can be used, a separate dedicated display or the like is not required. Therefore, it is possible to maintain good economical efficiency in terms of price. The wrinkle prevention operation and its display described above are stopped when the door 4 is opened and the door switch 28 is turned on to take out the dried clothes from the drum 2.

Note that the wrinkle prevention operation display on the display 29 may be a display that causes the light emitting diode segments of each set located on the entire outer periphery to emit light in the order indicated by the arrows, as shown in FIG. Furthermore, any other specific expression other than numbers may be used.

Furthermore, the display 29 is not limited to displaying the estimated time required until the end of drying; for example, the display 29 may display the time of a timer for making a reservation for the start of the drying operation. It is also possible to display the time of a timer for executing the operation.

[Effects of the Invention] As is clear from the above description, according to the present invention, in a clothes dryer that stores and dries clothes to be dried in a drum, the drum is intermittently operated after the normal drying operation is completed. This means that the intermittent operation state is displayed using an expression other than numbers, instead of the display that displays numbers during the normal drying operation. This has the excellent effect of not causing wrinkles and allowing the driving status to be clearly seen without the need for a dedicated display.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention; Figure 1 is a front view of the main parts of the clothes dryer when the display is in the display state during intermittent wrinkle prevention operation, and Figure 2 is the entire clothes dryer. 3 is a block diagram of the electrical (1) configuration, FIG. 4 is a front view of the main parts of the display when the display is in the display state at the start of drying operation, and FIG. This is a diagram corresponding to FIG. 1 showing a different embodiment of the system.In the figure, 2 is a drum, 6 is a fan, 7 is a motor, 16 is a heater, 17 is an exhaust temperature sensor, 13 is a dryness sensor,
3 is the main control! 29 indicates a display device.

Claims (1)

[Claims] 1. Clothes to be dried are housed in a drum and dried, and the drum is rotated intermittently after the end of the normal drying operation, and this intermittent operation is indicated by a number during the normal drying operation. A clothes dryer characterized in that the display is displayed using an expression other than numbers.