KR100562555B1 - Installation for controlling dry mode in drum type of washing machine - Google Patents

Abstract

Disclosed is a laundry control apparatus and method for laundry drying.

According to the present invention, a data memory for storing the RPM setting information of the drum motor for the set temperature during the drying operation of the drum washing machine; Generates heater and blow drive signals for drying control of the drum washing machine based on the drying administration program, receives the measurement result from the temperature sensor, determines whether the temperature in the drum reaches the preset set temperature, and then sets the set temperature from the data memory. A controller for patching RPM information of the drum motor for the controller and generating rotation control information of the drum motor based on the RF information; A drum motor driver for driving the drum motor in response to the rotation control information of the drum motor; And a heater driving driver for turning on / off the heater in response to the heater driving signal.

Therefore, the air flow is formed in the center of the gun using the centrifugal force of the drum by raising the RPM of the drum motor until the temperature in the drum reaches a predetermined temperature, so that the warm air supplied into the drum flows into the center of the gun. It provides the effect of maximizing the drying efficiency.

Drum Washing Machine, Drying, Temperature, Humidity, Time, Drum Motor, ALPM, RPM

Description

Drying control device and method of drum washing machine {INSTALLATION FOR CONTROLLING DRY MODE IN DRUM TYPE OF WASHING MACHINE}

1 is a cross-sectional view illustrating a drying structure of a conventional drum washing machine.

Figure 2 is a block diagram showing a drying control apparatus for a drum washing machine according to the present invention.

3 is a flowchart for explaining the main operation of the present invention.

<Explanation of symbols for main drawings>

201: control unit 203: program memory

205: temperature sensor 207: humidity sensor

209: data memory 211: counter

213: Drum Motor Driver 215: Heater Driver

The present invention relates to the drying of a drum washing machine, and more particularly, by varying the position of the fabric fed into the drum through the control of the RPM motor of the drum motor to form an air flow path into the stacked fabric during the drying operation, The present invention relates to a drying control apparatus and method for a drum washing machine which can increase drying efficiency by increasing the amount of dry air introduced into a surface.

In general, the drum washing machine is a state in which the washing water, detergent, laundry is put in the drum, the drum is rotated so that the washing is performed by the friction force of the drum and the laundry and the gravity of the laundry falling at a certain height. The washing method of the drum washing machine is less damage to the laundry cloth than other washing machines, does not cause the tangling of the laundry, and performs the functions of washing the hot water and drying the warm air by the heater installed inside the product. It can be.

1 is a cross-sectional view showing the main configuration of the drum washing machine. Referring to the drawings, a conventional drum washing machine is installed inside the cabinet 10 and the cabinet 10 to be externally, and is rotatably installed inside the tub 20 and the tub 20 in which washing water is stored / drained. Drum 30 to perform the washing, has a basic configuration consisting of a power mechanism (not shown) installed inside the cabinet 10 to rotate the drum (30). In addition, the inside of the tub 20 is equipped with a heating heater 34 for heating the supplied wash water, and drying the dehydrated laundry after washing by heating the space above the tub 20 in the cabinet 10 Hot air drying unit 40 is installed to.

The hot air drying unit 40 is composed of a duct mechanism part 41 which largely forms a flow path, a drying heater 42 for heating a space, and a blower 43 for advancing compressed air through the duct mechanism part 41. The duct mechanism 41 is coupled to the blower duct 44 coupled to the blower 43 mounted on the upper rear of the cabinet 10 in the drawing, and the tub 20 and the blower 43 are coupled to communicate with each other. It consists of a return duct 46, the drying heater 42 is coupled to the inner side of the blowing duct (44). When the warm air drying unit 40 configured as described above is completely washed and dehydrated, the drying heater 42 is driven to heat the air inside the blower duct 44, and at the same time, the blower 43 is driven to blow air. Compressed air is injected through the duct 44.

The compressed air injected as described above is converted into hot air by space heating of the drying heater 42, and the hot air is supplied to the inside of the tub 20 through the gasket 45 to dry the dehydrated laundry. And is returned to the blower 43 through the return duct 46.

However, the drying of the laundry seated in the drum has a problem in that the warm air is not transmitted to the inside of the laundry due to the lamination state of the cloth, thereby lowering the drying efficiency. This not only lowers the drying efficiency of the laundry per unit time, but also decreases the supply amount of the warm air that is advanced by the blower, which causes the completion of the product. In addition, due to the drawback that the drying efficiency of the laundry is low, in order to dry the laundry to the desired drying rate, as the blower and heater for a long time is driven for the unit supply amount of warm air, the power consumption is increased and time and economical The problem of increased spending is exposed.

The present invention was created to solve the above problems, and an object of the present invention is to induce the dispersion of cloth in the drying mode of the drum washing machine, thereby increasing the amount of hot air supplied to the surface of the cloth to increase the drying efficiency of the turbid water. The present invention provides a drying control apparatus and method for a drum washing machine.                         

Still another object of the present invention is to provide a drum washing machine drying control apparatus and method capable of increasing the completeness of a product by reducing the power consumption during laundry drying using only the control algorithm of the drum washing machine.

Drying control apparatus for laundry according to a first aspect of the present invention for achieving the above object, the drum washing machine in the drying operation control apparatus for a drum washing machine equipped with a temperature sensor and a humidity sensor for measuring the temperature and humidity in the drum; A program memory for carrying out a control program for the washing stroke, the dehydrating stroke and the drying stroke of the washing machine; A data memory for storing RPM setting information of the drum motor with respect to the preset temperature during the drying operation; After generating a heater and blow driving signal for performing drying control of the drum washing machine based on the drying administration program, and after receiving a measurement result from the temperature sensor to determine whether the temperature in the drum reaches a predetermined set temperature, the data memory A controller for patching RPM information of the drum motor with respect to the set temperature, and generating rotation control information of the drum motor based on the RPM information; A drum motor driver for driving the drum motor in response to rotation control information of the drum motor; And a heater driving driver for turning on / off the heater in response to the heater driving signal.

According to a preferred embodiment of the present invention, the rotation control information of the drum motor is a first drying mode for setting and controlling the RPM of the drum motor 70 to 90 until the temperature in the drum reaches 100 ℃ It is characterized by having.

In addition, when the temperature in the drum reaches 100 ° C. after the end of the first drying mode, the heater is turned off and it is determined whether the temperature in the current drum reaches the second set temperature, and the current temperature is the second. If the set temperature does not reach the RPM of the drum motor (RPM) is set to 35, and when the current temperature reaches the second set temperature further comprises a second drying mode for switching to the cooling stroke It is done.

Further, after the second drying mode is sorted, the RPM of the drum motor is set to 70 to 90 until the current humidity in the drum reaches the reference value, and the humidity in the drum reaches the reference value. If the case further comprises a third drying mode for switching to the cooling stroke.

On the other hand, the drying control method of the drum washing machine according to the second aspect of the present invention for achieving the above object, a) driving a heater and blow for the drying stroke; b) determining whether the temperature in the drum reaches a first set point and, if the first set point is not reached, setting and controlling the rotational speed of the drum to A RPM; And c) ending the heater when the first set value is reached as a result determined in b), and switching to a cooling mode of a drying stroke.

Preferably, when the first set point is reached in step c), after the heater is terminated, d) it is determined whether the current temperature in the drum reaches the second set point, but the second set point is not reached. Setting and controlling the rotational speed of the drum to B RPM; e) When the second set value is reached in step d), it is determined whether the humidity amount reaches the reference value by measuring the humidity in the current drum, but when the humidity amount exceeds the reference value, the rotation speed of the drum is reset to the A RPM. Doing; f) when the humidity reaches the reference value in step e), characterized in that it further comprises the step of entering the cooling mode of the drying stroke.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 is a view showing a control device according to the present invention.

As shown, a temperature sensor 205 for measuring the blowing temperature of the drum washing machine, a program memory 203 for mounting a control program for the washing and dehydrating stroke and drying stroke of the drum washing machine, the set temperature at the drying stroke A data memory 209 for storing RPM setting information of a drum motor for a heater, a heater driving signal for performing drying control of a drum washing machine based on the drying stroke program, and generating a heater driving signal from the temperature sensor 205. After receiving the measurement result and determining whether the temperature in the drum reaches a preset set temperature, the RMP information of the drum motor for the set temperature is fetched from the data memory 209, and the drum motor is based on the RMP information. The control unit 201 for generating rotation control information of the drum motor in response to the rotation control information of the drum motor For it consists of a drum drive motor driver 213 and a heater driving driver 215 for turning on / off the heater in response to the heater drive signal.

On the other hand, the control unit 201 rotates the drum motor to a predetermined RPM (RPM), for example, 70 ~ 90 RPM at the current temperature measured by the temperature sensor 205, for example, 100 ℃ after the start of the drying stroke, The stacked shape of the injected cloth is varied, which causes a large amount of air to form vents in the center of the cloth by centrifugal force due to the rotation of the drum motor, and the warm air is supplied through the vents. In addition, the control unit 201 rotates the drum motor to a predetermined RPM (RPM), for example, 35 RPM at a current temperature measured by the temperature sensor 205, for example, 90 ° C, after the drying operation is started, and the carriage is introduced into the drum. Turn over by the low speed of the drum. Therefore, in order to repeat this process for a predetermined time, the control unit 201 may be linked with the counter 211 for counting the time for the drying operation. In addition, in order to repeat the process for a predetermined time, the control unit 201 may be linked with the humidity sensor 207 to recognize the end of the drying stroke based on the current amount of humidity in the drum.

Referring to the operation of the present invention in detail based on the accompanying drawings as follows. 3 is a flowchart for explaining the main operation of the present invention.

As shown, in step S301 the control unit 201 is instructed by the user to the drying administration is received from the program memory 203 a program for the drying administration. The control unit 201 turns on the heater and the blow for performing the drying stroke in step S303 based on the drying stroke. Thereafter, the control unit 201 enters the step S305 and measures the temperature in the current drum by using the temperature sensor 205 connected to the input port of the control unit 201.

Thereafter, the control unit 201 enters a step S307 to determine whether the temperature in the drum has reached a first set value. The first setpoint temperature is approximately 90 to 100 ° C., and may be a temperature at which the laundry in the drum is sufficiently dried. However, this temperature is the surface temperature of the laundry, and the center in the laundry to be stacked is lower than the surface temperature by the remaining wash water. Therefore, the control unit 201 supplies the warm air to the center of the laundry to be stacked to increase the surface area of the laundry contacting the warm air to increase the drying efficiency. When the temperature in the current drum does not reach the first set value, the drum motor is turned on. Control to rotate to a predetermined RPM (RPM).

That is, in step S309, the control unit 201 controls the rotational speed of the current drum motor to a predetermined value, for example, 70 to 90 RPM through the drum motor driving driver 213. The rotational speed of the drum motor is an acceleration to allow a sufficient centrifugal force due to rotation of the laundry in the drum, and the rotational speed of the drum motor may be varied based on experimental basis. For example, the RPM of the drum motor may be reset depending on the amount of laundry, that is, the quantity of laundry, or the weight of the cloth, the rotational speed of the drum motor being reset. This may not be necessary to increase the rotational speed of the drum motor when the amount is extremely small, while if the amount is larger than the reference value, it may be set to increase the rotational speed of the drum motor above the reference value. This is because when the amount is large, a greater centrifugal force is required for the cells in the drum to overlap each other to form an air flow path to the center of the gun.

As a result, the control unit 201 induces the centrifugal force into the drum by setting the drum motor to A RPM until the first setpoint temperature is reached. This controls the driving of the heater and the driving of the blow motor so that the warm air is supplied into the drum, and an air flow path is formed in the center of the fabric using the centrifugal force of the drum motor. The air flow path is for forming a discharge path of the warm air, and increases the contact surface of the warm air supplied to the surface of the laundry to increase the drying efficiency. Thereafter, when the controller 201 recognizes that the current temperature measured by the temperature sensor 205 reaches the first set point temperature, the controller 201 enters the step S311 to disable the heater driving dry unit 215.

When the temperature in the drum reaches the first set value, it can be recognized that the surface of the laminated fabric is completely dried, and the control unit 201 controls to dry the inside of the laminated fabric by repositioning the laminated fabric. To this end, the control unit 201 enters the step S313 to enable the drum motor drive driver 213 to control the rotational speed of the drum motor.

The rotational speed of the drum motor is preferably about 35 RPM, which is intended to induce mixing between the drums by the low speed rotation of the drum. Therefore, the rotational speed of the drum motor exemplified in the present invention may be sufficiently variable based on experimental basis. As a result, the control unit 201 determines whether the temperature in the current drum has reached the second setpoint temperature, and if the current temperature has not reached the second setpoint temperature, the controller 201 continuously rotates the drum motor to a predetermined RPM. To control. Subsequently, when the temperature in the current drum reaches the second set point temperature, that is, when the current temperature is determined to be 90 ° C. or lower, as a result of the detection of the temperature sensor 205 connected to the input port of the controller 201, the controller 201 recognizes that the laundry in the drum is evenly dried.

This is to recognize that the laundry is evenly dried when the temperature in the drum is mixed through the low speed stroke of the drum motor at the first set value, and then the driving of the heater is terminated and the temperature in the drum reaches the second set value. The controller 201 enters step S317. At this time, the control unit 201 starts the humidity sensor 207 to determine whether the current humidity in the drum has reached the reference value. This process is to determine the amount of moisture generated from the fabric during drying of the fabric in the drum, and to recognize whether the laundry is completely dried.

When the amount of humidity determined by the humidity sensor 207 does not reach the reference value, that is, when the temperature in the drum reaches the second set temperature but the amount of humidity is large, it can be recognized that the dry state of the laundry depends only on the surface of the cloth. It may be determined that the drying of the laundry is immature and enters step S319. The control unit 201 rotates the drum motor to A RPM for redrying the laundry, thereby redrying the surface of the laundry that is not dried.

That is, when the humidity in the drum exceeds the reference value, the surface of the cloth mixed in the drum is not dried, and a centrifugal force is added to maintain the undried surface of the laundry. Thus, the laundry uses the remaining temperature in the drum to dry the non-dry surface of the laundry. The control unit 201 detects the current amount of humidity from the humidity sensor 207 and redetects the amount of humidity in the rebuilding stroke state. If the amount of humidity does not reach the reference value, the drum's rotational speed is maintained at the current A RPM to perform a continuous redrying stroke. However, when the amount of humidity detected by the humidity sensor 207 reaches the reference value, the process proceeds to step S321 to perform a cooling stroke, and then ends.

Measuring the amount of humidity in the present invention is to increase the drying efficiency of the laundry through the laundry re-drying, in another embodiment of the present invention can maintain the rotational speed of the drum at the A RPM for a predetermined time. That is, in step S317, the control unit 201 starts the counter 211, counts a predetermined time based on the experimental basis, rotates the drum motor to A RPM, and performs a cooling operation when the preset time ends. do.

While the invention has been shown and described with respect to specific preferred embodiments thereof, the invention is not limited to the embodiments described above, and is commonly used in the art to which the invention pertains without departing from the spirit of the invention as claimed in the claims. Anyone with knowledge will be able to make various variations.

As described above, the drying control apparatus and method of the drum washing machine according to the present invention increases the RPM of the drum motor until the temperature in the drum reaches a preset temperature during the drying operation of the drum washing machine. As the air flow path is formed at the center of the fabric, the warm air supplied into the drum is introduced into the center of the fabric to maximize the drying efficiency. Also, when the temperature in the drum reaches a predetermined temperature, the stacked fabric is mixed in the drum. As the drum motor is rotated at a low speed to perform the redrying stroke, the path of the warm air introduced into the laundry is diversified to provide an effect of preventing physical deformation of the laundry through the drying stroke in advance.

Claims (10)

In the drying stroke control device of the drum washing machine equipped with a temperature sensor and a humidity sensor for measuring the temperature and humidity in the drum, A program memory for carrying out a control program for washing, dehydrating, and drying operations of a drum washing machine; A data memory for storing RPM setting information of the drum motor with respect to the preset temperature during the drying operation; After generating a heater and blow driving signal for performing drying control of the drum washing machine based on the drying administration program, and after receiving a measurement result from the temperature sensor to determine whether the temperature in the drum reaches a predetermined set temperature, the data memory A controller for patching RPM information of the drum motor with respect to the set temperature, and generating rotation control information of the drum motor based on the RPM information; A drum motor driver for driving the drum motor in response to rotation control information of the drum motor; And Drying control device of the drum washing machine, characterized in that the heater drive driver for turning on / off the heater in response to the heater drive signal. The rotation control information of the drum motor has a first drying mode for setting and controlling the RPM of the drum motor to 70 to 90 until the temperature in the drum reaches 100 ° C. Drying control device of the drum washing machine. The method according to claim 2, wherein after the end of the first drying mode, when the temperature in the drum reaches 100 ° C, the heater is turned off and it is determined whether the temperature in the current drum reaches the second set temperature, and the present temperature. Does not reach the second set temperature, the RPM of the drum motor is set to 35, and when the current temperature reaches the second set temperature, the second drying mode is further switched to the cooling stroke. Drying control device of the drum washing machine comprising a. 4. The method of claim 3, wherein after the second drying mode is sorted, the RPM of the drum motor is set to 70 to 90 until the current drum humidity reaches a reference value, and the drum humidity is controlled. And a third drying mode for switching to the cooling stroke when the reference value is reached. 4. The method of claim 3, wherein after setting the second drying mode, the RPM of the drum motor is set to 70 to 90 for a predetermined time, and when the set time elapses, the control unit switches to the cooling stroke. Drying control device of the drum washing machine further comprises a drying mode. In the drying stroke control method of the drum washing machine, a) driving a heater and a blow for a drying stroke; b) determining whether the temperature in the drum reaches a first set point and, if the first set point is not reached, setting and controlling the rotational speed of the drum to A RPM; And c) as a result of determining in step b), when the first set point is reached, terminating the heater and switching to a cooling mode of a drying operation. The method of claim 6, wherein the first set value is 100 ℃, the rotational speed of the drum is the AlMP (RPM) which can form an air flow path to the center of the laundry laundry is dispersed in the drum inner peripheral surface by centrifugal force, A is a drying control method of the drum washing machine, characterized in that 70 ~ 90. 7. The method of claim 6, wherein if the first set point is reached in step c), after the heater is terminated, d) it is determined whether the current drum temperature reaches the second set point, and the second set point is reached. If not, setting and controlling the rotational speed of the drum to B RPM; e) when the second set value is reached in step d), it is determined whether the amount of humidity reaches a reference value by measuring the current humidity in the drum, and if the humidity exceeds the reference value, the rotation speed of the drum is reset to the A RPM. Doing; f) when the humidity reaches the reference value in step e), the drying control method of the drum washing machine further comprising the step of entering the cooling mode of the drying stroke. 7. The method of claim 6, wherein if the first set point is reached in step c), after the heater is terminated, d) it is determined whether the current drum temperature reaches the second set point, and the second set point is reached. If not, setting and controlling the rotational speed of the drum to B RPM; And e) when the second set value is reached in step d), after setting and controlling the rotational speed of the drum to the A RPM for a predetermined time, the method further includes entering the cooling mode of the drying stroke. Drying control method of the drum washing machine, characterized in that. 10. The method of claim 8 or 9, wherein the temperature corresponding to the second set point is 90 ℃, B RPM is the rotational speed of the drum to induce the fall of the laundry during the rotation of the drum, is 35 RPM (RPM) Drying control method of the drum washing machine, characterized in that.

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