JPS60158898A - 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] ゛Industrial Application Field The present invention can automatically select the next drying process content according to the relationship between the temperature of the exhaust gas discharged from the drying chamber of a clothes dryer and the degree of drying. This invention relates to a control device for a clothes dryer.

Conventional Structure and Problems Conventional clothes dryers are equipped with electrodes that detect the degree of dryness of clothes and a thermistor that detects the temperature of the exhaust air discharged from the drying chamber of the clothes dryer, for example, the rotating drum. If the predetermined degree of dryness cannot be detected with the electrode within a predetermined time from the start of the drying process, the drying process is stopped at that point and an abnormality notification is issued. The time from the start to the end of the drying process was set to a long time so that the clothes would be completely dry under any conditions, such as the amount of clothes.

In such conventional clothes dryers, when the amount of clothes is extremely small, the electrodes cannot be detected because the clothes do not touch the electrodes, or the electrodes cannot be detected due to a failure in the electrode circuit, and it takes a long time. The drying process continues for hours, consuming unnecessary energy, and causes wrinkles due to overdrying of the clothes.

Purpose of the Invention The present invention solves the above-mentioned conventional problems and prevents unnecessary consumption of energy when electrode detection cannot be performed, which tends to occur when there is little clothing, or when electrode detection cannot be performed due to failure of the electrode detection circuit. An object of the present invention is to provide a control device for a clothes dryer that makes it possible to perform the following functions.

Structure of the Invention The control device for a clothes dryer according to the present invention includes a dryness degree detection means for detecting the degree of dryness of clothes, and detects a predetermined degree of dryness based on the output of the dryness degree detection means and the dryness degree data stored in the storage means. a dryness degree determination means for determining the relative value of the exhaust temperature from exhaust temperature data stored in the drying chamber containing clothes; and an output of the dryness degree determination means and the The output of the exhaust temperature determining means is input, and before the dryness degree determining means outputs an output indicating that the degree of dryness is a predetermined degree, the exhaust temperature determining means outputs an output indicating that the exhaust temperature has reached a predetermined value. If so, proceed to the next first drying step, and when the dryness level determining means outputs an output indicating that the dryness level is a predetermined degree, the exhaust temperature determining means indicates that the exhaust temperature has not reached the predetermined value. The device is equipped with a control means for controlling the drying process to proceed to the next second drying process when the drying process is performed.

Description of examples Examples of the present invention will be described below.

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. Reference numeral 1 is a dryness degree detection means that detects the electrical resistance of clothing. Reference numeral 2 denotes dryness degree determining means, into which the output of the dryness degree detection means 1 and the output of the storage means 3 are input. Here, the storage means 3 stores data related to determination of degree of dryness, data related to exhaust temperature, data for driving the heater and motor for a predetermined period of time, and the like. The dryness level discriminator, stage 2, generates an output when the dryness of the clothes reaches a predetermined value.

Reference numeral 4 denotes exhaust temperature detection means, which is provided within the exhaust guide. 5 is an exhaust temperature determining means, and the exhaust temperature detecting means 4
The relative temperature is determined based on the output of and the data in the storage means 3. The outputs of the dryness degree determining means 2 and the exhaust temperature determining means 6 are both input to the control means 6. The control means 6 controls the heater drive means 7 to control the supply of electricity to the heater.

It also controls the motor driving means 8 to control energization of the motor. Further, when an abnormality occurs, the abnormality notification drive means 9 is controlled to make a buzzer sound.

The control means 6 energizes the motor and heater to perform hot air drying, and when the exhaust temperature determined by the exhaust temperature determination means 6 exceeds a predetermined value before the output of the dryness degree determination means 2 is output, the following steps are performed. The process proceeds to the first drying process, and if the output from the dryness degree determining means 2 is within a predetermined exhaust temperature, the process proceeds to the next second drying process.

FIG. 2 is a circuit diagram showing a specific configuration of this embodiment.

1o is the main body, and in the center there is a drum 1 with a rotating light.
1 is provided. The dryness level detection means 1 is constituted by an electrode 1B, and is provided at a position facing the inner surface of the drum so that clothing can easily come into contact with it.

The exhaust temperature detection means 4 is a thermistor 4a, and the drum 1
An exhaust guide 12 is provided to exhaust the moist air inside the body 9 to the outside of the main body 9. A heater 13 is provided on the front side of the main body 9 and is energized by the heater drive means 7. Further, a motor 14 is provided at the inner bottom of the main body 9 and is energized by the motor driving means 8. A buzzer 16 is provided on the front side of the main body 9 and is sounded by the abnormality notification drive means 9. 16 is a microcomputer;
A built-in program determines the degree of dryness, determines the exhaust temperature, and activates the heater 13. It generates signals for driving the motor 14 and buzzer 16, respectively. Specifically, a storage section 16a that stores dryness degree data, exhaust temperature data, etc., and the output of the electrode 1a and the thermistor 4a.
an input section 16b for inputting the output of the heater drive means 7.degree. motor drive means 8. It has an output section 160 that outputs a control signal to the abnormality notification driving means 9, and an arithmetic control section 16d that controls the storage section 16a9, the human power section 16b, and the output section 180, and performs data comparison operations and the like.

Next, the operation of this embodiment will be explained. FIG. 3 shows the main part of a flowchart under the control of the microcomputer 16.

Generally, after putting the material to be dried into the drum 11, the user operates a switch (not shown) to start drying. By this operation, the microcomputer 16 energizes the heater 13 via the heater drive means 7 and the motor 14 via the motor drive means 8 in step 21 to start hot air drying operation.

As shown in Figure 4, the exhaust gas temperature during hot air drying operation is T1 when there is a large amount of clothing, and T2 when there is a very small amount of clothing. It has become clear. The relative value of the exhaust gas temperature is memorized based on the output of the thermistor 41L of the exhaust gas temperature detection means 4, and a predetermined degree of dryness is achieved in step 22 according to the output of the electrode 1a of the dryness degree detection means 1 within a predetermined exhaust temperature. If it is determined that this has occurred, the process proceeds to step 23 to proceed to the next second drying process. On the other hand, if it is determined that the predetermined exhaust temperature has been reached before the predetermined degree of dryness is reached, the process proceeds to the next first drying step in step 24.

The first drying process is stored in the microcomputer 16 so that the required time is shorter than the second drying process, and the constant is such that the hot air drying operation is continued for a certain period of time from the time when the predetermined exhaust temperature is reached. Continue, and when finished, stop energizing the heater and motor.

According to the above embodiment, when the amount of clothes is extremely small, when the driver accidentally drives the vehicle without paying for the clothes (when a child is driving mischievously), or when the electrode detection circuit fails, the exhaust temperature value determines the next drying time. Since the process is automatically set, it prevents unnecessary use of energy and also prevents wrinkles.

Effects of the Invention As is clear from the above description, the present invention includes a means for detecting and determining a predetermined degree of dryness, a means for detecting and discriminating exhaust temperature, and a means for detecting and discriminating the exhaust temperature. and control means for automatically stopping energization to the heater and motor after a certain period of time has passed when the exhaust gas temperature reaches a predetermined temperature before the temperature reaches a predetermined temperature. Even if the dryness level detection means malfunctions, the amount of clothes is extremely small, or if you accidentally start the operation without loading clothes, unnecessary energy use and wrinkles can be prevented, ensuring good drying at all times. It is possible to provide a control device for a clothes dryer that can obtain effects.

[Brief explanation of drawings]

Fig. 1 is a block diagram of main parts of a control device for a clothes dryer showing an embodiment of the present invention, Fig. 2 is a diagram showing the relationship between the clothes dryer and the control device, and Fig. 3 is an operation of the control device. FIG. 4 is a flowchart showing the relationship between exhaust temperature and drying time. 1... Dryness degree detection means, 2... Dryness degree determination means, 3... Memory means, 4...
- Exhaust temperature detection means, 5... Exhaust temperature determination means, 6... Control means. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 45

Claims (2)

[Claims] (1) Dryness degree detection means for detecting the degree of dryness of clothing;
A degree of dryness determination means that determines whether the degree of dryness is a predetermined degree based on the output of the degree of dryness detection means and the degree of dryness data stored in the storage means, and a degree of dryness determination means that detects the temperature of the exhaust gas discharged from the drying chamber in which clothes are stored. an exhaust temperature detecting means for determining the relative value of the exhaust gas temperature from the output of the exhaust temperature legality detecting means and the exhaust temperature data stored in the storage means; The output of the exhaust temperature determining means is input, and before the dryness degree determining means outputs an output indicating that the degree of dryness is a predetermined degree, the exhaust temperature determining means outputs an output indicating that the exhaust temperature has reached a predetermined value of 5. In this case, when proceeding to the next first drying step and the dryness level determining means outputs an output indicating that the dryness level is at a predetermined level, the exhaust temperature determining means determines that the exhaust temperature has not reached the predetermined value. A control device for a clothes dryer, comprising a control means for controlling the process to proceed to the next second drying process when the output shown in FIG. (2) The control device for a clothes dryer according to claim 1, wherein the constant that determines the time of the first drying step is a constant value.