JPS6371299A - Control apparatus of clothing dryer - Google Patents

Abstract

(57) [Abstract] 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 detects an abnormality and displays and notifies the abnormality.

Conventional technology Conventional clothes dryer control devices issue a buzzer to notify the user of the abnormality when the filter inside the drum becomes clogged or the temperature controller malfunctions and the temperature inside the refrigerator becomes abnormally high. was.

Problems to be Solved by the Invention In such a conventional clothes dryer control device, it is easy to distinguish between abnormal heating due to a clogged filter and abnormal heating due to a malfunction of the temperature regulator because the same abnormality notification is issued. I couldn't do it. In addition, other failures may occur, such as flame detection circuit failure or gas pulp drive circuit failure in gas clothes dryers, but in the case of such failures,
There were a lot of problems that we couldn't communicate and we didn't know what the cause was. It is also possible to notify the user by displaying a display or by sounding a buzzer depending on the nature of the failure, but in this case, the user would be required to display and notify the user of abnormalities that are difficult to deal with, making it more complicated for the user and making it easier to use. The problem was that it got worse. That is, there are some types of failures that cannot be repaired or inspected even if they are notified to the user, and it is meaningless to issue an abnormality notification according to the type of failure.

The present invention solves the above-mentioned problems, and aims to provide a clothes dryer that is equipped with an abnormality notification function that is not complicated and easy to use, although the abnormality notification function corresponds to various abnormalities. This is the purpose.

Means for Solving the Problems In order to achieve the above object, the clothes dryer control device of the present invention includes a state input unit that detects the control state of the clothes dryer;
Equipped with a key input section for setting control contents or instructing start/stop of operation, a sequential operation control section for controlling each load based on signals from the key input section, and a display section controlled by the sequential operation control section, The sequential operation control unit inputs various abnormalities using signals from the status input unit and displays them on the display unit.If the content of the abnormality is specific, the same display is displayed, and if the content of the abnormality is other than that, each of the abnormalities is displayed. The system is configured such that all abnormalities are displayed differently when a specific key input signal is input from the key input section.

Effect With this configuration, abnormality notification corresponding to the abnormality content that can be inspected by the user is performed, and for other specific abnormalities, the same abnormality notification is made for all other specific abnormalities, and a specific key input signal from the key input section is used. Anomaly notifications will be made in response to all abnormalities.

As a result, abnormality contents that can be inspected by the user can be notified of the abnormality, and abnormality contents that cannot be inspected can be notified of the abnormality only for specific operations.

EXAMPLES Hereinafter, examples of the present invention will be described with reference to FIGS. 1 to 5. In FIG. 1, reference numeral 1 denotes a key input section, which is comprised of a start switch 2 for starting the operation, a pause switch 3 for temporarily stopping the operation, and a drying course changeover switch 4 for changing the drying course. Status input section 5
is composed of a flame detection section 6 for detecting combustion, an abnormal heating detection section 7, a temperature adjustment section 8, and a detection terminal 9. The flame detection section 6 is, for example, a thermocouple detection section or a flame rod detection section. The abnormal heating detection section 7 is a temperature switch that operates when the temperature inside the refrigerator becomes abnormally high. The temperature control unit 8 keeps the temperature inside the refrigerator constant. The detection terminal 9 is used to check the circuit of the pulp drive unit, and the gas pulp 14 is ON.
When this happens, the transistor 16 turns off and the detection terminal 9
is at a high level. The display units 10 to 13 are composed of light emitting diodes. A gas pulp 14 that opens and closes a gas passage is controlled by a transistor 16. Igniter 1
7 ignites the burner. The motor 18 that rotates the drum in which clothes are placed and the fan that blows hot air from the burner into the drum is a semiconductor switching element 19.
and transistor 20. Buzzer 23
It sounds to notify the end of the process or when an abnormality occurs. The power supply unit 24 converts the AC power supply 21 into DC power and supplies it to each element.

A power switch 22 supplies AC power 21 to the motor 18 . The sequential operation control unit 23 stores a memory (RUM) in which sequence programs are stored and a temporary memory memo IJ-(
It is a microcomputer equipped with RAM), an arithmetic section, an input section, an output section, etc.

Among the above-mentioned components, the operation panel section includes display sections 10 to 13 shown in FIG. 2, a start switch 2 and a pause switch that constitute the key input section 1, a saute 3, a drying course changeover switch 4. A power switch 22 is provided.

The operation in the above configuration will be explained. First, when the power switch 22 is turned on and the start switch 2 is pressed, the sequential operation control means 23 turns on the standard course lamp 11 and starts driving on the standard course. That is, the motor 18 is rotated by controlling the transistor 2o and the semiconductor switching element 19, and after a few seconds, the small igniter 17 is ignited. Next, the gas pulp 14 is turned on to supply gas to the burner, and the igniter 7
ignite with a spark. When the burner ignites and burns out, the flame detection section 6 sequentially inputs an ignition signal to the operation control section 23. Upon receiving this signal, the operation is sequentially stopped. The state of the display section at this time is shown in FIG. 3 (the shaded part of the lamp indicates lighting). In addition, when changing the drying course, each time you press the drying course changeover switch 4, the cycle changes from the saving course to the careful course to the standard course, and the lamp 1 corresponding to the course changes.
0 to 12 will light up.

Next, the abnormal state will be explained. As the contents of the abnormal state, the following six types of abnormal contents (1) to (2) will be explained. ■
The main gas valve remains closed and gas is not supplied to the burner.
It does not ignite even after a certain period of time (non-ignition). ■When the flame goes out during combustion (goes out), the flame detection section 6 detects it. (2) When the filter inside the drum is clogged and the internal temperature becomes abnormally high, the abnormal heating detection section 7 determines that abnormal heating has occurred. In addition, even though the power switch 22 is turned on and the Nutatsu switch 2 is not pressed, ■ When there is a combustion signal in the flame detection section 6, ■ When the temperature adjustment section is operating, ■ The gas pulp 14 is turned on and the pulp Detection terminal 9 is at high level.

When such an abnormal condition occurs, the operation is stopped, the buzzer 19 is sounded to notify that there is an abnormality, and the details of the abnormality are displayed using the display lamps 1o to 13: (In this case, the normal display method and A different display (for example, different lighting combinations and blinking cycles of indicator lamps) is performed.

The above abnormalities such as ■non-ignition, ■turning off, and ■abnormal heating may be caused by the user's usage, so an error display corresponding to the abnormality is displayed to let the user know what the cause of the abnormality is. Make it possible to recognize what is there. Moreover, the abnormalities ■ to ■ are completely caused by a failure of the product's control device, and the abnormality display is the same. In FIG. 4, lamps with diagonal lines indicate that they are on, and lamps without diagonal lines indicate that they are off. Normally, only one lamp from 10 to 12 lights up during the drying course, but when an abnormality is detected, two lamps are lit.
Turn the light on for one cycle, then check the abnormality details (I forgot to turn it on, ■Failure to ignite,
It can be distinguished from ■turning off, ■abnormal heating, and ■~■control unit failure.

Next, abnormal contents ① to ② will be explained. Even if abnormalities ■ to ■ occur during normal use, the abnormality display remains the same, so the user cannot understand the cause of the abnormality. In this case, if you turn on the power switch 22 while holding down the start switch 2 and the temporary stop switch 3, the reset of the sequential operation control section 23 will be canceled and at the same time the start switch 2 and the temporary stop switch 3 will be reset. The stop switch 3 signal is input at the same time. In this way, if the input signal is different from normal, the sequential operation control means 23 determines that it is an inspection process.

When it is determined that the inspection process is in progress, the sequential operation control unit 23 performs the same control as the operation sequence, and when the signal from the status input unit 5 is determined to be abnormal, the display units 10 to 13 are activated depending on the abnormality contents ■ to ■. are displayed differently as shown in FIG. In FIG. 5, the lamps in the shaded area are blank, and the lamps in the non-shaded area are off. By controlling in this way, the contents of abnormalities that can be determined by the user are displayed, and in case of circuit failures that cannot be handled by the user, all abnormalities can be detected by manually operating keys that are different from normal ones. The contents can be displayed, allowing service personnel to easily know the contents of the abnormality.

Effects of the Invention As described above, according to the present invention, for abnormalities that can be inspected by the user to determine whether a mistake in use is due to a malfunction of the product, an abnormality notification corresponding to the abnormality is provided,
However, by notifying service personnel of all abnormalities by inputting a specific key input signal, the user can inspect the product to some extent when it stops due to an abnormality, and can prevent mistakes in use. There is no need for the service person to respond to the cause of the problem, and the service person can still clearly identify the location of the failure and can promptly carry out inspection and repair. Moreover, the abnormality notification is not complicated and the usability is improved.

[Brief explanation of the drawing]

Fig. 1 is a circuit diagram of a control device for a clothes drying rack according to an embodiment of the present invention, Fig. 2 is a diagram showing the same operation panel section, and Fig. 3 j
d A diagram showing the display state of the operation panel section during operation, Figure 4 is a diagram showing abnormality notification method 1 during normal use, and Figure 5 is a diagram showing the abnormality notification status in the tatami construction scale [temple]. . 1...key input section, 5.old...state long section, 1
0 to 13...Display unit, 23...Sequential operation control unit. Name of agent: Patent attorney Toshio Nakao, 1st person, 2nd person
0 Figure 5

Claims (1)

[Claims] a status input unit that detects the control status of the clothes dryer; a key input unit that commands setting of control contents or start/stop of operation; and a sequential operation control unit that controls each load using signals from the key input unit; The sequential operation control section includes a display section controlled by the sequential operation control section, and the sequential operation control section inputs various abnormalities by signals from the status input section and displays them on the display section, and when the abnormality content is specific, it is displayed as the same. Display the
A clothes dryer configured to display all abnormal contents in different ways when a specific key input signal is input from the key input section. Control device.