JPS63319000A - Control apparatus of 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 the Invention The present invention relates to a control device for a clothes dryer that dries clothes and the like using hot air generated by heating means and blowing means.

Conventional technology A conventional clothes dryer control device is equipped with a temperature detection means that detects an abnormal rise in the temperature inside the machine due to a clogged filter in the drum, etc. When this abnormal temperature is detected, the control means stops operation. At the same time, an anomaly was reported. If the user wants to resume operation after eliminating the cause of the abnormal temperature rise, such as a clogged filter, the user has to turn off the power and reset the abnormal mode of the control means.

Problems to be Solved by the Invention With such conventional clothes dryer control devices, when restarting operation after clearing the clogged filter, which is the cause of abnormal temperature rise, it is necessary to turn off the power and then turn it on again. However, there was a problem in that the operability was poor. In addition, when used as a coin laundry, the T source on/off depends on the fin timer device, so the user cannot turn on and off the radio waves to cancel the abnormal mode and resume operation. There was a problem.

In view of the above problems, it is an object of the present invention to improve operability when an abnormality is resolved, and to enable operation to be resumed even in the case of a coin laundry.

Means for Solving the Problems In order to achieve the above object, the present invention provides a driving means for a heating means and a blowing means for generating hot air for drying clothes, a temperature detecting means for detecting the temperature inside the clothes dryer, The clothes dryer includes door opening/closing detection means that opens and closes an opening for putting clothes into the clothes dryer, and a control means that controls the drive means according to a set program to perform drying control, and the control means detects when the temperature detection means is abnormal. If a temperature rise is detected, the operation is stopped, and then the opening/closing of the door is detected by the opening/closing detection means, and the operation is restarted when the abnormal temperature condition is resolved.

Effect: With this configuration, after detecting an abnormal temperature rise and stopping operation, the door is opened to eliminate the cause of the abnormality, and then the door is closed again. If the abnormal temperature condition has been resolved, operation can be resumed. The operation can be automatically resumed by the cancellation operation.

EXAMPLE Hereinafter, an example of the present invention will be explained with reference to FIGS. 1 and 2.

FIG. 2 shows the configuration of the gas clothes dryer in this embodiment. That is, 1 is a drum into which clothes and the like are put, and an opening into which clothes are put into the drum 1 is covered by a door 2 so as to be openable and closable. A filter 3 covering an exhaust opening provided on the rear surface of the drum 1 collects fiber waste in the exhaust.

4 is a fan that circulates the air in the drum; 5 is a motor that drives the drum and the fan; 6 is a gas burner; the operation of the fan 4 introduces combustion heat from the gas burner into the drum 1, and the heat is passed through the filter 3. Exhaust to the outside of the rear machine. 7Pi
A gas path for supplying gas, a solenoid valve for opening and closing the eight gas paths, and a thermostat 10 serving as a temperature detection means for detecting abnormal temperature inside the machine. Further, when the filter 3 becomes clogged with accumulated fiber waste, the door 2 is opened, the filter 3 is removed from the drum 1, and the filter 3 can be reattached to the drum 1 after removing the fiber waste. Further, the abnormal temperature rise inside the machine detected by the thermostat 10 is mainly caused by the reduction in the amount of air circulation inside the machine due to the aforementioned clogging of the filter 3. Therefore, by removing the fiber waste from the filter 3, the abnormal temperature rise inside the machine is eliminated.

Next, the configuration of a control device for a gas clothes dryer in this embodiment will be explained with reference to FIG. That is, 1o is a thermostat that detects an abnormal temperature rise inside the aircraft, 11 is a door switch that is a door opening/closing detection means configured to operate in conjunction with the opening/closing of the door 2, and these are a microcomputer that is a control means. 16. Reference numeral 12 indicates a notification means composed of a light emitting diode, an electronic buzzer, etc. that informs the user of operating conditions and abnormal conditions, 13 indicates a motor drive means for operating the motor 5, and 14 indicates a W operation for the solenoid valve 8. A solenoid valve and a driving means 15 are igniter driving means for driving an igniter when igniting a gas burner, and these means 12 to 15 are controlled by a microcomputer 16 that operates according to a preprogrammed procedure. .

The control 7O- of the microcomputer 16 will be explained with reference to Figure @3. That is, in step 17, the temperature inside the machine is monitored by the thermostat 10, and if it is normal (on state), the combustion operation of 25 is continued. This combustion operation also includes operation in a state in which no ignition occurs due to a temperature control function that turns on and off the solenoid valve driving means 14.

When the internal temperature of the machine abnormally rises in step 17 (the thermostat 1o is off, @), the operation is stopped as shown in step 18, and a notification means is activated to notify the user of the abnormal temperature rise. This is an operation to ensure safety and to notify the user that it is necessary to clean the filter 3 inside the drum. Next, in step 19, it is determined whether the user has recognized the abnormal condition and opened the door to clean the filter 3. If the door cannot be opened, the abnormality alarm will continue. If the door is opened, it is determined that the user has recognized the abnormal condition, and the abnormality notification is canceled in step 2o. In step 21, it is determined whether the cleaned filter has been installed and the door has been closed, and the process does not proceed to the next step until the door is closed. When the door is closed, it is determined in step 22 whether the temperature inside the machine has decreased to a normal state, that is, whether the thermostat 1o has returned to the on state. Here, if the temperature inside the machine has not fallen sufficiently (thermostat 10 remains off), the air blowing operation in step 23 is performed to forcefully lower the temperature inside the machine, and continues until the thermostat returns to normal. In this blowing operation, only the motor is energized without igniting the burner, and the drums 1 and 77 are driven to circulate air within the machine to cool the interior of the machine. There is no problem in terms of safety even if you do not perform air blowing operation and do not operate until the thermostat returns to normal.

When it is determined in step 22 that the temperature inside the machine has decreased to a normal state, the process moves to step 24, where the ignition operation is performed, the burner 6 is ignited, and the process moves to the combustion operation process in step 26. In other words, the door opening/closing signal and the thermostat return signal are sent from the door switch 11 and thermostat 10 to the microcomputer 1.
6, the operation will automatically start.

Note that the ignition operation in step 24 may not be performed until the temperature inside the drum falls below a set value due to the temperature adjustment function, similar to the combustion operation in step 25.

In this example, a gas burner was used as the heating means, but a heater may also be used.

More than the effects of the invention, as is clear from the examples, according to the present invention, after the abnormal temperature inside the aircraft rises due to clogging of the filter, which is the cause of the abnormality, after opening the door and cleaning the filter,
When the door is closed, it can restart automatically.

Therefore, a safe and easy-to-use clothes dryer can be realized. Also, when used as a coin laundry,
If the user cleans the filter, drying operation can be continued without any problem.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a control device for a clothes dryer according to an embodiment of the present invention, FIG. 2 is a sectional view of the same clothes dryer,
FIG. 3 is a flowchart showing the same control. 1...Drum, 2...Door, 3...
・Filter, 6...Bar f-1IQ...Thermostat, 13...Motor drive means, 14.
...Solenoid valve drive means, 15...Igniter 1 translation means, 16...Microcomputer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
figure

Claims (2)

[Claims] (1) Driving means for the heating means and blowing means that generate hot air to dry clothes, temperature detection means for detecting the temperature inside the clothes dryer, and opening/closing of the door that opens and closes the opening for putting clothes into the clothes dryer. and a control means for controlling the drive means according to a set program to perform drying control, and the control means stops operation when the temperature detection means detects an abnormal temperature rise, and then controls the opening/closing detection means. A control device for a clothes dryer that detects the opening and closing of a door and resumes operation when the abnormal temperature condition is resolved. (2) After detecting the opening and closing of the door, the control means performs a blowing operation if an abnormal temperature is detected, and restarts the operation when the abnormal temperature condition is resolved.Control of the clothes dryer according to claim 1 Device.