KR100863707B1 - Refresh operating control method of laundry apparatus - Google Patents

Abstract

The present invention includes a drum including a rotating rotating basket and a tub surrounding the spin basket and receiving the water, a heater accommodated in the tub, and a water level sensing unit for sensing the level of water received in the drum. A method for controlling a refresh operation of a laundry machine, the method comprising: setting a target water level; A preliminary water supply step of supplying the water level detection unit to a basic water level capable of detecting the level of water received in the drum; A target water supply time calculating step of detecting a rising water level by supplying water to a drum, and calculating a target water supply time to a target water level by comparing the basic water level and the rising water level; A main water supply step of supplying water to the drum during the target water supply time based on the calculated target water supply time; Operating a heater to heat the water received in the drum. In this way, even in a laundry machine without a drying function or a steam device, a refresh function can be performed to remove odors absorbed in the cloth, and a water supply time is controlled according to the water pressure of the place where the washing machine is installed by controlling the water supply method supplied to the drum. It is possible to adjust, and to prevent the target cloth contained therein from being wet, it is possible to improve the reliability of the washing apparatus.

Description

REFRESH OPERATING CONTROL METHOD OF LAUNDRY APPARATUS}

1 is a perspective view of a washing machine,

2 is a cross-sectional view of the washing apparatus shown in FIG.

3 is a control block diagram according to the present invention;

Figure 4a is a control flow chart of the preliminary water supply step according to the present invention,

4b is a control flowchart of a target water supply time calculating step according to the present invention;

Figure 4c is a control flow chart of the main water supply step, the re-water supply time calculation step and the drainage step according to the present invention.

Explanation of symbols on the main parts of the drawings

1: washing machine 10: drum

12: spin basket 16: tub

40: input unit 70: water supply pipe

90: water supply valve 130: heater

170: drain portion 190: water level detection portion

210: memory 230: control unit

The present invention relates to a method for controlling a refresh operation of a laundry machine, and more particularly, to a method for controlling a refresh operation of a laundry machine capable of controlling a water supply method to enable a refresh operation of a laundry machine without a drying function.

In general, the washing apparatus is divided into a pulsator method in which the drum is installed in the vertical direction and a drum method in which the drum is installed in the horizontal direction.

Here, the drum system washes the laundry by causing a collision with the washing water due to the rising and falling of the laundry. In addition, a drum type washing machine is provided with a heater that converts the introduced cold water into hot water. In addition, the drum type washing apparatus is provided with a drying function to dry the laundry after washing.

On the other hand, the drum-type washing machine performs a refresh function to remove the smell soaked in the cloth, such as meat smell using a drying device or steam device additionally installed.

However, the drum type washing apparatus without the above-described drying apparatus or steam apparatus has a problem in that it cannot perform a refresh function to remove smells soaked in cloth such as meat smell.

Accordingly, the necessity of a washing apparatus capable of performing a refresh function by using a heater provided in a drum type washing apparatus is increasing. Accordingly, the cloth contained in the drum does not get wet and water is supplied to the space where the heater is accommodated to operate the heater. There is a need for a refresh operation control method capable of the refresh function.

Accordingly, an object of the present invention is to provide a refresh operation control method of a washing apparatus capable of performing a refresh function with a washing apparatus not provided with a drying apparatus and a steam apparatus.

In addition, another object of the present invention is to provide a refresh operation control method of a washing apparatus capable of performing a refresh function by supplying water to a cloth contained in a washing apparatus not provided with a drying apparatus and a steam apparatus.

The object is, according to the present invention, a drum comprising a spin basket for receiving and rotating the article and a tub surrounding the spin basket, receiving a water, a heater accommodated in the tub, and a water level of the water received in the drum. A refresh operation control method for a laundry machine including a water level sensing unit, the method comprising: setting a target water level; A preliminary water supply step of supplying the water level detection unit to a basic water level capable of sensing the level of water received in the drum; A target water supply time calculating step of detecting a rising water level by supplying water to the drum, and calculating a target water supply time to the target water level by comparing the basic water level with the rising water level; A main water supply step of supplying water to the drum during the target water supply time based on the calculated target water supply time; It is achieved by the refresh operation control method of the washing machine comprising the step of operating a heater to heat the water received in the drum.

Here, the preliminary water supply step, the step of rotating the spin basket; Watering the drum while the spin basket is rotating; Stopping water supply to the drum; Stopping the spin basket; It may include the step of storing the basic data by detecting the basic level of the water supply received in the tub after a predetermined time.

The target water supply time calculating step may include: rotating the spin basket; Watering the drum while the spin basket is rotating; Stopping the spin basket; Measuring the rising water level of the water supply received in the tub after a predetermined time and storing the rising data; Comparing the basic data and the rising data may include calculating the target water supply time up to the target water level.

The main water supply step includes the steps of rotating the spin basket; Supplying water to the drum during the rotation of the spin basket during the target water supply time; The method may include stopping the spin basket.

The data is characterized in that it comprises a frequency.

On the other hand, if the water supply in the main water supply step is lower than the target water level, it may further include a re-water supply time calculating step for calculating the re-water supply time.

And, if the water supply in the main water supply step is higher than the target water level, it may further include a draining step for draining a predetermined time.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figures 1 to 3, the washing apparatus 1 according to the present invention is a main cabinet (2), a drum (10) accommodated in the main cabinet (2), and the water in the drum (10) The water supply pipe 70 to supply, the water supply valve 90 for opening and closing the flow path of the water supply pipe 70, the heater 130 accommodated in the drum 10, and discharges the water in the drum 10 to the outside It includes a drain unit 170, a water level detecting unit 190 for detecting the water level inside the drum 10, and a control unit 230 for controlling the operation of the drum 10 and the water supply valve 90.

The main cabinet 2 forms an exterior of the washing apparatus 1, and accommodates the drum 10, the water supply pipe 70, the water supply valve 90, the heater 130, and the like described above. In the front of the cabinet 2, a detergent inlet 20 for introducing detergent, an input unit 40 for inputting an operation signal of the washing apparatus 1, and a display unit for displaying the operating state of the washing apparatus 1 ( 50).

The drum 10 includes a spin basket 12 in which laundry or cloth odor removal cloth 300 is accommodated, and a tub 16 surrounding the spin basket 12 to receive water supplied thereto. Here, the access opening is formed so that the cloth 300, which requires laundry or odor removal, enters and exits the drum 10. The entrance opening and closing is opened and closed by the door 110.

The spin basket 12 forms a laundry accommodating portion 14 in which laundry or cloth 300 is accommodated. The spin basket 12 is connected by the drum driver 150 to rotate by the driving force of the drum driver 150. On the outer surface of the spin basket 12, a plurality of through holes (not shown) are formed to allow the wash water to flow in and out. The spin basket 12 rotates clockwise or counterclockwise depending on the operating conditions. Here, in the refresh mode, the spin basket 12 rotates for a predetermined time so that water from the water supply pipe 70 does not flow into the spin basket 12 but flows into the space between the spin basket 12 and the tub 16. That is, as the spin basket 12 rotates, water flows in the rotational direction of the spin basket 12 by centrifugal force, and water does not penetrate into the spin basket 12. On the other hand, in the normal washing mode, the spin basket 12 may be maintained in a stationary state. That is, in the washing mode, the cloth accommodated in the spin basket 12 may be wetted with water.

Tub 16 surrounds the spin basket 12 and forms a heater accommodating portion 18 in which the heater 130 is accommodated. The tub 16 receives water by water supply from the outside.

Next, the water supply pipe 70 is connected to an external water supply source (not shown). The water supply pipe 70 receives water from an external water supply source and supplies water into the drum 10. The water flowing through the water supply pipe 70 is preferably passed through the detergent inlet 20 to be mixed with the detergent and supplied to the drum 10.

The water supply valve 90 is provided in one region of the water supply pipe 70 to open and close the flow path of the water supply pipe 70. The water supply valve 90 is operated by the control of the controller 230 to be described later.

The heater 130 is disposed in the heater accommodating part 18 provided in the tub 16. The heater 130 serves to heat the water introduced by the water supply pipe 70. For example, the heater 130 converts the water into wash water of hot water during the washing operation of washing the laundry. That is, the heater 130 converts the cold water into wash water at 40 ° C., 60 ° C. or 90 ° C. according to washing conditions. On the other hand, the heater 130, as an embodiment of the present invention, serves to heat the water contained in the tub 16 to remove the smell of the cloth (300). For example, in the refresh mode, the heater 130 is to heat the water received in the tub 16 so as to dissolve the smell soaked in the cloth 300 by the steam generated by the water is heated.

Drainage 170 serves to drain the water contained in the tub 16 to the outside. The drain 170 includes a drain pipe (not shown) and a drain pump (not shown). The drainer 170 is operated by the control of the controller 230.

Next, the water level detecting unit 190 is disposed in the heater accommodating unit 18 as an example of the present invention. The water level detector 190 detects the water level received by the tub 16 and transmits the detected water level to the controller 230.

The memory 210 stores the target data WL ₃ according to the target water level received from the input unit 40. In addition, as an example of the present invention, the memory 210 stores data for each level according to a preliminary water supply step, a target water supply time calculation step, a main water supply step, a rewatering time calculation step, and a drainage step. In addition, the memory 210 also stores the water supply time calculated in the target water supply time calculating step, the rewatering time calculating step, and the draining step.

The control unit 230 controls to receive the signal input from the input unit 40 in the step of setting the target water level, convert the signal into target data WL ₃ and store it in the memory 210. In addition, the control unit 230 determines that the water level detection unit 190 detects the water level when a detection signal for detecting the water level received from the water level detection unit 190 in the preliminary water supply stage is transmitted. The memory 210 is controlled to store at the base level. In this case, the controller 230 controls the memory 210 to store the basic data WL ₁ corresponding to the basic water level.

Next, the control unit 230 supplies water to the drum 10 by operating the water supply valve 90 for a predetermined time (T ₁ ) in the target water supply time calculating step, and the rise corresponding to the rising water level detected by the water level detecting unit 190. By comparing the data WL ₂ and the basic data WL ₁ stored in the memory 210, the target water supply time T ₂ up to the target water level is calculated and controlled to be stored in the memory 210.

The controller 230 opens the flow path of the water supply pipe 70 to the water supply valve 90 for the target water supply time T ₂ based on the target water supply time T ₂ calculated in the main water supply step, and supplies water to the drum 10. To control.

Meanwhile, the controller 230 compares the main water supply data WL ₄ according to the water level detected in the main water supply stage with the target data WL ₃ according to the target water level. If the water level does not reach the target water level in the main water supply step, the controller 230 calculates the water supply time and controls the water supply to be rewatered. On the other hand, if the water level is higher than the target water level in the main water supply step, the controller 230 drains a predetermined time, and calculates the water supply time again to control the water supply.

When the water level reaches the target water level in the main water supply step, the controller 230 operates the heater 130 to perform a refresh function of heating the water received in the drum 10 to remove the odors soaked in the cloth 300. .

With this configuration, the control flow chart of the preliminary water supply step, the target water supply time calculation step, the main water supply step, the rewatering time calculation step, and the drainage step according to the present invention will be described below.

As shown in FIGS. 4A to 4C, the preliminary water supply step includes rotating the spin basket 12, supplying water to the drum 10 during rotation of the spin basket 12, and supplying water to the drum 10. The step of stopping, the step of stopping the spin basket 12, and after the predetermined time to detect the basic water level of the water supply received in the tub 16 to store the basic data (WL ₁ ).

Accordingly, referring to FIG. 4A, the control flow of the preliminary water supply stage is first set. The target water level is set in the input unit 40, and the target data WL ₃ corresponding to the set target water level is stored in the memory 210. . Here, the step of setting the target water level is the separation distance between the tub 16 for receiving water and the spin basket 12 for receiving and rotating the cloth 300. That is, the position adjacent to the outer circumference of the spin basket 12 from the bottom of the tub 16 and not in contact with the cloth 300 is set as the target water level position.

Next, the spin basket 12 is rotated (S1). At this time, as shown in Figure 2, since the water supply pipe 70 is located on the left side of the figure, the spin basket 12 rotates in the counterclockwise direction. The spin basket 12 is rotated for a predetermined time Tr (S3). For example, as an example of the present invention, the spin basket 12 is rotated for 5 seconds or more. However, the time for rotating the spin basket 12 may vary depending on the capacity of the washing apparatus 1. For example, in the case of the laundry machine 1 having a larger capacity than the present invention, more rotation time may be required to obtain sufficient centrifugal force.

The water supply valve 90 is operated during rotation of the spin basket 12 to supply water to the drum 10 (S5). The reason for supplying water during the rotation of the spin basket 12 is to prevent the water supplied by the rotational force of the spin basket 12 from entering the spin basket 12. The water supply valve 90 is operated to supply water for a predetermined time (To) (S7). For example, the time To of supplying water by operating the water supply valve 90 is, as an example of the present invention, 4 seconds or more.

The water supply valve 90 is operated to close the flow path of the water supply pipe 70 (S9). At this time, the spin basket 12 continues to rotate for a predetermined time (Tf) to prevent the water falling from the water supply pipe 70 flows into the spin basket 12 (S10). When the predetermined time Tf elapses, the spin basket 12 is stopped (S12). Here, the reason for continuing to rotate the spin basket 12 for a predetermined time (Tf) after closing the flow path of the water supply pipe 70 is that the water supply valve 90 flows to the water supply pipe 70 after closing the water supply pipe 70 It is to prevent water from flowing into the spin basket (12). As an example of the present invention, the predetermined time Tf at which the spin basket 12 rotates is set to 5 seconds or more, but as described above, the time may vary depending on the capacity of the washing apparatus 1.

Then, the water level detection unit 190 waits for the stabilization of the water received in the drum 10 for a predetermined time (Tst) to detect the water level (S14). That is, as an example of the present invention, after stopping the spin basket 12, the water received in the drum 10 is stabilized to wait 25 seconds after stopping the spin basket 12 so that accurate water level detection can be achieved. Next, when the water received in the drum 10 is stabilized, the water level detecting unit 190 detects a basic level that can be sensed, and stores the basic data WL ₁ corresponding to the basic level in the memory 210 ( S16). At this time, the basic data WL ₁ is a frequency corresponding to the basic water level. For reference, the change in frequency according to the water level is lowered when the water level is high. After that, the process proceeds to 'A'. Here, the basic data WL ₁ corresponds to the basic level which can be detected by the initial level detecting unit, and thus is stored in the memory 210. However, it should be noted that the basic data WL ₁ stored in the memory 210 is variable according to the capacity of the washing apparatus.

The reason for carrying out the above-described preliminary water supply step is that the water level detection unit 190 does not immediately detect the water level when the water is supplied to the drum 10, and the water level starts from a certain water level after receiving a certain amount of water in the drain 170. Since the detection unit 190 may detect the water level, the water level detection unit 190 supplies water to a level that can be detected.

Next, the target water supply time calculating step includes rotating the spin basket 12, feeding water to the drum 10 during the rotation of the spin basket 12, stopping the spin basket 12, the tub after a predetermined time target water supply time by up to the target level measure rising water levels in the water supply receiving the 16 compares the rising data step, raw data (WL ₁₎ and the rising data (WL ₂₎ for storing (WL ₂₎ (T ₂ ) calculating.

Accordingly, the control flow of the target water supply time calculating step will be described with reference to FIG. 4B, starting with the control flow 'A' of the preliminary water supply step, and rotating the spin basket 12 (S30). At this time, as in the above-described control flow in the preliminary water supply step, it rotates in a counterclockwise direction and rotates for a predetermined time Tr ₁ (S32). Here, as an example of the present invention, the predetermined time Tr ₁ for rotating the spin basket is 5 seconds equal to the predetermined time Tr of the preliminary water supply step. However, the predetermined time Tr ₁ in the target water supply time calculating step may be different from the predetermined time Tr in the preliminary water supply step.

The water supply valve 90 is operated while the spin basket 12 rotates to supply water to the drum 10 (S34). The water is supplied to the drum for a predetermined time (T ₁ ) (S36). For example, the time T ₁ of supplying water by operating the water supply valve 90 may be arbitrarily determined. As an example of the present invention, it is set to supply water for 2 seconds.

The water supply valve 90 is operated to close the flow path of the water supply pipe 70 (S38). At this time, the spin basket 12 continues to rotate for a predetermined time (Tf ₁ ) to prevent the water falling from the water supply pipe 70 flows into the spin basket 12 (S40). When the predetermined time Tf ₁ elapses, the spin basket 12 is stopped (S42). On the other hand, the predetermined time (Tf ₁ ) for rotating the spin basket in the target water supply time calculation step is set to 5 seconds or more, as an example of the present invention, the same as the predetermined time (Tf) for rotating the spin basket in the preliminary water supply step However, it may be set differently from the predetermined time Tf in the preliminary water supply stage.

Then, the water level detection unit 190 waits for stabilization of the water received in the drum (10) for a predetermined time (Tst ₁ ) to detect the water level (S44). The rising level WL ₂ corresponding to the rising level is sensed by sensing the rising level from the basic level (S46). Here, the rising data WL ₂ is also stored in the memory 210 at the same frequency as the basic data WL ₁ .

The target water supply time T ₂ to the target data WL ₃ corresponding to the target water level is calculated by comparing the basic data WL ₁ and the rising data WL ₂ (S48). Here, the calculation method for calculating the target water supply time is as follows.

For example, as an example of the present invention, when WL ₁ = 26.5KHz, WL ₂ = 26.0KHz, WL ₃ = 25.0KHZ, and T ₁ = 2 seconds, a numerical value is input to the above-described formula to provide a target water supply time (T ₂ ). Is calculated, T ₂ = 4 seconds.

The reason for calculating the above-described target water supply time T ₂ is to calculate the required water supply time up to the target water level according to each water pressure because the water pressures are different for each place where the washing apparatus 1 is installed.

Next, the main water supply stage, the rewatering time calculation stage, and the drainage stage are as follows.

The main water supply step includes rotating the spin basket 12, watering the drum 10 during the rotation of the spin basket 12 for the target water supply time T ₂ , and stopping the spin basket 12. do. Meanwhile, a predetermined time Tr ₂ for rotating the initial spin basket 12 in the main water supply step and a predetermined time Tf ₂ for rotating the spin basket 12 after closing the water supply pipe 70 are examples of the present invention. The water supply step and the target water supply time calculation step are the same, but this is only a time set as an example, and may be changed in the installation conditions and the production process of the washing machine 1.

On the other hand, if the water supply amount is lower than the target water level in the main water supply step, the water supply time calculation step of calculating the water supply time is performed. On the other hand, if the water supply in the main water supply step is higher than the target water level, the drainage step to drain a certain time.

Accordingly, referring to FIG. 4C, referring to the main water supply step, the water supply time calculation step, and the drainage step, first, the process proceeds to the 'B' control flow of the target water supply time calculation step to rotate the spin basket 12 (S60). . The operating time Tr ₂ of the spin basket 12 is an example of the present invention, and is the same as the above-described preliminary water supply step and target water supply time calculation step (S62).

The water supply valve 90 is operated during the rotation of the spin basket 12 to supply water to the drum 10 (S64). At this time, the water is supplied to the drum 10 during the target water supply time T ₂ calculated in the target water supply time calculating step (S66). For example, the target water supply time T ₂ is 4 seconds as described above.

The water supply valve 90 is operated to close the flow path of the water supply pipe 70 (S68). At this time, the spin basket 12 continues to rotate for a predetermined time (Tf ₂ ) to prevent the water falling from the water supply pipe 70 to flow into the spin basket 12 (S70). When the predetermined time Tf ₂ elapses, the spin basket is stopped (S72).

It is determined whether the main water supply data WL ₄ and the target data WL ₃ detected in the main water supply stage are the same (S74). When the main water supply data WL ₄ and the target data WL ₃ are the same, the heater 130 is operated to remove the smell soaked in the cloth 300 by performing the refresh function (S76).

On the other hand, if it is determined that the main water supply data WL ₄ and the target data WL ₃ are not the same, it is determined whether the target data WL ₃ is larger than the main water supply data WL ₄ (S78). If it is determined that the target data WL ₃ is larger than the main water supply data WL ₄ , since the main water supply level is higher than the target water level, the draining step of draining a predetermined time is performed (S80). After the drainage step, the water supply time T ₂ is calculated and watered. Here, the water supply time T ₂ calculated after the draining step is different from the target water supply time T ₂ calculated in the target water supply time calculating step.

On the other hand, if it is determined that the target data WL ₃ is smaller than the main water supply data WL ₄ , it is determined that the target water level has not been reached, and the water supply time T ₂ is calculated. Here, the rewatering time T ₂ is different from the target water supply time T ₂ .

Thus, the drying function or even in the washing machine without a steam device may perform a refresh function to remove the smell soaked in the cloth.

In addition, by controlling the water supply method to be supplied to the drum when performing the refresh function, the water supply time can be adjusted according to the water pressure of the place where the washing apparatus is installed, thereby improving the reliability.

In addition, by controlling the water supply method to be supplied to the drum when performing the refresh function it can prevent the target fabric accommodated inside the wet.

As described above, according to the present invention, there is provided a refresh operation control method of a washing apparatus capable of removing a smell soaked in cloth by performing a refresh function even in a washing apparatus without a drying function or a steam apparatus.

In addition, the water supply time can be adjusted according to the water pressure of the place where the washing apparatus is installed by controlling the water supply method to the drum when performing the refresh function, thereby providing a refresh operation control method of the washing apparatus to improve the reliability.

In addition, there is provided a refresh operation control method of a washing apparatus that can prevent the target fabric contained therein from being wet by controlling the water supply method supplied to the drum when performing the refresh function.

Claims (7)

A laundry including a rotating rotating basket and a tub enclosing the spin basket and receiving water, a heater accommodated in the tub, and a water level sensing unit sensing a level of water received in the drum In the refresh operation control method of the device, Setting a target water level; A preliminary water supply step of supplying the water level detection unit to a basic water level capable of sensing the level of water received in the drum; A target water supply time calculating step of detecting a rising water level by supplying water to the drum, and calculating a target water supply time to the target water level by comparing the basic water level with the rising water level; A main water supply step of supplying water to the drum during the target water supply time based on the calculated target water supply time; And operating a heater to heat the water received in the drum. The method of claim 1, The preliminary water supply step, Rotating the spin basket; Watering the drum while the spin basket is rotating; Stopping water supply to the drum; Stopping the spin basket; And detecting the basic water level of the water supply received in the tub after a predetermined time, and storing the basic data. The method of claim 1, The target water supply time calculating step, Rotating the spin basket; Watering the drum while the spin basket is rotating; Stopping the spin basket; Measuring the rising water level of the water supply received in the tub after a predetermined time and storing the rising data; And calculating the target water supply time up to the target water level by comparing the basic data with the ascending data. The method of claim 1, The main water supply step, Rotating the spin basket; Supplying water to the drum during the rotation of the spin basket during the target water supply time; Refreshing operation control method of the laundry machine comprising the step of stopping the spin basket. The method according to claim 2 or 3, Refreshing operation control method of the laundry machine, characterized in that the data comprises a frequency. The method of claim 1, And a refreshment time calculation step of calculating a refreshment time if the amount of water supplied in the main water supply step is lower than the target water level. The method of claim 1, If the water supply in the main water supply step is higher than the target water level, the refresh operation control method of the laundry machine, characterized in that it further comprises a draining step for draining a predetermined time.

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