KR0169348B1 - Drying and washing machine and control method thereof - Google Patents

Abstract

The present invention relates to a dry washing machine and a method of controlling the same, and in particular, by controlling the heater and the blower motor in accordance with the temperature and humidity in the washing tank and the weight of the laundry, the drying efficiency is improved by maintaining the temperature and humidity in the washing tank optimally. It relates to a dry washing machine and a control method thereof to shorten the time.

To this end, in a dry washing machine having an exhaust valve connected to a heater 13, a temperature sensing means 3, and a drain pipe 25, an exhaust valve connected to the drain pipe 25 is used as a two-way valve 12. At the outlet of the two-way valve 12, a hot air exhaust hose 12a for discharging hot air and washing water and a drain hose 12b for discharging the washing water are installed, and one side of the drain pipe 25 is included in the drying hot air. The humidity sensing means 4 for measuring the humidity is provided, and the hot air discharge means 11 is provided in the hot air exhaust hose 12a.

Description

Dry Washing Machine and Control Method

1 is a cross-sectional view of a conventional dry washing machine.

2 is a cross-sectional view of a dry washing machine according to the present invention.

3 is a control circuit diagram of a dry washing machine according to the present invention.

4 is a control flowchart of the microcomputer according to the present invention.

Figure 5 is a chart showing the drying efficiency according to the temperature, humidity, amount of storage according to the present invention.

* Explanation of symbols for main parts of the drawings

1: DC power supply means 2: operation operation means

3: temperature sensing means 4: humidity sensing means

5: display means 6: weight sensing means

7: Micom 8: First drive circuit

9: second drive circuit 10: motor

11: hot air discharge means 12: 2-way valve

13 heater 14 blower fan

21: washing tank 22: water tank

23 pulsator 24 exhaust valve

25: drain pipe 26: shaft

12a: hot air exhaust hose 12b: drain hose

The present invention relates to a dry washing machine and a method of controlling the same, and in particular, by controlling the heater and the blower motor in accordance with the temperature and humidity in the washing tank and the weight of the laundry, the drying efficiency is improved by maintaining the temperature and humidity in the washing tank optimally. It relates to a dry washing machine and a control method thereof to shorten the time.

In general, the washing machine is to dry the laundry by the hot air after the normal washing, rinsing, dehydration process is completed, the structure is supplied to the washing tank 21 hot air as shown in FIG. The heater 13 is provided on one side of the upper side, and has a hot air supply device is provided with a blowing fan 14 for forcibly blowing hot air on one side thereof, the exhaust valve for discharging the hot air to the outside at a predetermined position of the lower part of the washing machine A 24 is installed, and a pulsator 23 is disposed below the washing tank 21 to turn over the laundry. The pulsator 23 is connected to the motor 10 by a shaft 26.

In addition, a temperature sensing means 3 for sensing a temperature is installed at a central portion of one side of the water tank 22 formed outside the washing tank 21, and a weight sensing means 6 for sensing an amount of laundry on the lower side of the water tank 22 is provided. Each is installed.

The conventional dry washer made as described above supplies hot air into the washing tank 21 by driving the blower fan 14 at the same time as the heater 13 is heated to execute the drying process of the laundry after the washing, rinsing, and dehydration processes are completed. While evaporating the water present in the laundry, the evaporated water is discharged through the exhaust valve 24, and the pulsator 23 is intermittently reversed by driving the motor 10 to evenly dry the laundry. Turned over.

At this time, the weight sensing means 6 determines the amount of laundry present in the washing tank 21 to determine the supply time of hot air, and the temperature sensing means 3 detects and maintains a constant temperature inside the washing tank 21. Let's go.

Such a conventional dry washing machine determines the weight of the laundry and judges only the end point of drying by the left and right stirring times of the pulsator and the temperature sensing means, resulting in poor drying efficiency and poor drying conditions of the laundry. The reliability is deteriorated.

The present invention is to install the humidity sensing means and hot air discharge means at a predetermined position in the washing tank to solve the above problems, by comparing and analyzing the output data of the temperature sensing means, humidity sensing means, and weight sensing means in the microcomputer It is an object of the present invention to provide a drying washing machine and a method of controlling the same by optimizing the drying conditions in the washing tank to shorten the drying efficiency and shorten the drying time and reduce the power consumption.

In order to achieve the above object, the present invention provides a dry washing machine having an exhaust valve connected to a heater 13, a temperature sensing means 3, and a drain pipe 25, wherein an exhaust valve connected to the drain pipe 25 is provided. Used as a directional valve 12, a hot air exhaust hose 12a for discharging hot air and washing water and a drain hose 12b for discharging washing water are provided at the outlet of the two-way valve 12, and the drain pipe 25 The humidity sensing means 4 for measuring the humidity contained in the drying hot air is installed at one side, and the hot air discharge means 11 is installed in the hot air exhaust hose 12a.

In addition, the present invention is a control method of a dry washing machine to optimally maintain the temperature and humidity in the washing tank by varying the control of the heater and the blower motor in accordance with the temperature and humidity in the washing tank, and the weight of the laundry, the conventional washing, rinsing, dehydration When the drying starts after the end of the process, the blower fan and the heater is turned on to supply hot air into the washing tank, and the initial operation process (L1) of repeatedly rotating the pulsator, measuring and storing the amount of laundry after the process, and the amount of laundry According to the quantity control process (L2) to set the appropriate humidity and temperature according to the measurement, the current temperature inside the washing tank after the process, and determines whether the measured temperature is higher than the temperature set in the quantity control process (L2) the internal temperature Is higher than the set temperature, the temperature control process (L3) to turn off the heater, after measuring the internal humidity, the measured humidity of the Humidity control process (L4) to determine whether it is higher than the temperature set in the control process (L2) and adjust the appropriate humidity thereafter, the temperature and humidity of the current washing tank after the process is the end temperature and humidity set in the quantity control process (L2) When the comparison between the current temperature and humidity is less than the end point, the heater is turned off, and when it is determined that the operation switch is in the off state, the drying process is completed (L5) to complete the drying process.

Hereinafter, described in detail by the accompanying drawings as follows.

2 is a cross-sectional structural view of a dry washing machine according to the present invention, in which a heater 1 for supplying hot air into the washing tank 21 is installed at an upper center thereof, and a drain pipe for discharging hot air and washing water at a predetermined position under the water tank 22 is shown in FIG. (25) is installed, the two-way valve 12 is installed at the outlet of the drain pipe 25, the hot air exhaust hose 12a and the drain hose 12b is connected to the output side thereof, the hot air exhaust hose (12a) Hot air discharge means 11 is provided in a predetermined portion.

In addition, a pulsator 23 is placed on the bottom surface of the washing tank 21, and the pulsator 23 is connected to the motor 10 by a shaft 26.

In addition, a temperature sensing means 3 for sensing a temperature is installed at one central portion of one side of the water tank 22 formed outside the washing tank 21, and a weight sensing means 6 for sensing an amount of laundry on the lower side of the water tank 22, And one side of the drain pipe 25, the humidity sensing means 4 are respectively installed.

3 is a control circuit diagram of a dry washing machine according to the present invention, the input terminal of the microcomputer (7), the DC power supply means 1, the operation operation means (2), the temperature sensing means (3), the humidity sensing means (4), the weight The sensing means 6 are connected to each other, and the first drive circuit 8 for controlling the motor 10 for driving the pulsator 23 and the hot wind discharge means 11 for forcibly evacuating the hot air are on the output side of the microcomputer. The second drive circuit 9 for controlling the directional valve 12 and the display means 5 for displaying various kinds of information are connected.

4 is a control flow chart of the microcomputer according to the present invention, Figure 5 is a diagram showing the drying efficiency according to the temperature, humidity, amount of storage according to the present invention.

Referring to the drying process according to the present invention made as described above with reference to FIGS. 2 to 3, first, after the usual washing, rinsing, and dehydration processes are completed by the operation operation means 2, the microcomputer 7 enters the drying mode. In order to perform the drying process of the laundry in the heater 13 is heated to supply the hot air into the washing tank 21, wherein the microcomputer (7) reads the data output from the weight sensing means (6) of the drying target By detecting the amount of laundry to set the drying time, by controlling the motor 10 for even drying to rotate the pulsator 23 intermittently to repeat the process of inverting the laundry.

In addition, the microcomputer 7 reads the data output from the temperature sensing means 3 and the humidity sensing means 4 to determine the current temperature and humidity of the washing tank 21, and then the amount of laundry and the temperature and humidity of the washing tank 21. Compared to maintain optimal drying conditions in the washing tank and at the same time excessively high temperature and humidity in the washing tank 21 to drive the hot air discharge means (11) blowing fan to lower the temperature and humidity inside the washing tank 21 In this case, the control of the two-way valve 12 forms a flow path to the drain hose 12b in the drainage or dewatering process, and forms an exhaust path to the hot air exhaust hose 12a in the drying process.

On the other hand, inside the microcomputer, as shown in FIG. 4, data is embedded to maintain optimal drying conditions according to temperature, humidity, and amount of laundry in the washing tank.

That is, Figure 4 (a) shows that the drying efficiency is increased as the temperature in the washing tank is increased, (b) is the drying efficiency is increased as the air volume of the heater is less, and (c) is the drying efficiency as the humidity in the washing tank is less Is increased, (d) is the increase in the amount of laundry, the air flow should also increase, and (e) is the drying time increases as the amount of laundry increases, (f) is the amount of laundry As the power consumption increases, the power consumption increases. Accordingly, data that can maintain optimal drying conditions in proportion to the temperature, humidity, and the amount of laundry in the washing tank are determined by the data shown in FIG.

The operation of the microcomputer embedded with such data will be described in detail with reference to the flowchart shown in FIG.

After the normal washing, rinsing, and dehydration processes, drying starts (step 101), the blower fan and the heater 13 are turned on (steps 102 and 103) to supply hot air into the washing tank, and the pulsator 23 is left to right. An initial operation L1 is performed to repeat the rotation several times (step 104).

Thereafter, the output data of the weight sensing means 6 is read to measure the amount of laundry (step 105), and the measured data thereof is stored (step 106), and at the same time, an appropriate humidity and temperature are set according to the amount of laundry (steps 107, 108). After performing the quantity control process (L2) to read the data output from the temperature sensing means (3) to measure the current temperature inside the washing tank 21 (step 109), and the measured temperature is measured by the quantity control process ( It is determined whether the temperature is higher than the temperature set in step L2 (step 110), and when the internal temperature of the washing tank 21 is higher than the set temperature, the temperature control process L3 is performed to turn off the heater 13 (step 111).

Then, by reading the signal output from the humidity sensing means to measure the humidity inside the washing tank 21, it is determined whether the measured humidity is higher than the temperature set in the quantity control process (L2) (step 110) to determine the internal temperature of the washing tank. When the temperature is higher than the set temperature, the hot air discharge means 11 is controlled by strong wind (step 114), and the humidity is rapidly lowered. When the temperature is lower than the set humidity, the humidity control process (step 115) is performed to control the hot air discharge means 11 by mild wind. ).

Then, when the current temperature and humidity are compared to the end temperature and humidity set in the quantity control process (L2) (steps 116 and 117), the heater is turned off when the current temperature and humidity in the washing tank 21 are less than the temperature and humidity at the end point. If it is determined (step 118) that the operation switch is in the off state (step 119), the drying process is completed by performing the drying completion process L5 of stopping the driving of the hot air discharge means 11 (step 120).

As described above, in the present invention, the humidity sensing means and the hot air discharge means are additionally installed at a predetermined position in the washing tank, and the output data of the temperature sensing means, the humidity sensing means, and the weight sensing means in the microcomputer are compared and analyzed. By optimizing drying conditions, drying efficiency can be increased, drying time can be shortened, and power consumption can be reduced.

Claims (2)

In a dry washing machine having an exhaust valve connected to a heater (13), a temperature sensing means (3), and a drain pipe (25), an exhaust valve connected to the drain pipe (25) is used as a two-way valve (12). At the outlet of the two-way valve 12, a hot air exhaust hose 12a for discharging hot air and washing water and a drain hose 12b for discharging the washing water are installed, respectively, and one side of the drain pipe 25 has humidity in the drying hot air. Humidity sensing means (4) for measuring the dry washing machine, characterized in that by installing the hot air discharge means (11) in the hot air exhaust hose (12a). Drying control method to maintain the temperature and humidity in the washing tank optimally by variably controlling the heater and the blower motor according to the temperature and humidity in the washing tank and the weight of the laundry, and drying after completion of the normal washing, rinsing, and dehydration processes. Is started, supply the hot air into the washing tank by turning on the blower fan and the heater, the initial operation process (L1) of rotating the pulsator several times, after the process to measure and store the amount of laundry, the appropriate humidity according to the amount of laundry And setting the temperature and the quantity control process (L2), after the process measures the current temperature inside the washing tank, and determines whether the measured temperature is higher than the temperature set in the quantity control process (L2), the internal temperature is higher than the set temperature Temperature control process (L3) to turn off the heater when high, the humidity inside the measurement after the process, the measured humidity thereof in the quantity control process (L2) Humidity control process (L4) to determine whether it is higher than the set temperature to adjust the appropriate humidity, the temperature and humidity of the current washing tank after the process is compared with the end temperature and humidity set in the quantity control process (L2) If the temperature and humidity of the less than the end of the heater is turned off and then the operation switch is determined to be in the off state control method of a dry washing machine comprising a drying complete process (L5) to complete the drying process.