KR20070002435A - Control method for washing course in drum type washer by spray steam - Google Patents

Abstract

A method of controlling a course of a steam-injecting washing machine is provided to double washing effect by suitably driving the washing motor and the circulation pump, thereby maximizing the satisfaction of a user. A method of controlling a course of a steam-injecting washing machine comprises: a step(S210) of driving the circulation pump and injecting the steam with the same driving condition as the washing motor for a predetermined time if the steam-injecting course is selected according to the command of the user; a step of sensing the washing water level at the time when the set time goes by, stopping the drive of the circulation pump if the present washing water level is below the set water level, and re-supplying the water; and a step of stopping the course if the washing water temperature reaches the set temperature.

Description

Control method for washing course in drum type washer by spray steam}

Figure 1 is a side cross-sectional view showing the configuration of a general steam jet drum washing machine

2 is a perspective view of FIG. 1

3 is a perspective view showing a steam generator mounted on the drum washing machine of FIG.

Figure 4 is a flow chart showing a steam stroke control method of the steam jet washing machine according to the present invention

* Explanation of symbols for main parts of the drawings

60: motor 70: steam generator

80: pump device

The present invention relates to a washing machine, and more particularly, to a stroke control method of a steam injection washing machine having a steam generator and performing a washing stroke with high temperature steam.

In general, the washing apparatus includes a pulsator washing machine in which the drum is erected in a vertical direction, a drum washing machine in which the drum is laid in the horizontal direction, and a dry washing machine having a drying function.

The washing-related stroke was performed by using such a washing machine.

However, since a large amount of washing water is consumed in the washing-related administration of the washing apparatus, efforts have recently been made to minimize the amount of washing water used for washing.

It is provided by this is a steam generator, the steam generator serves to assist the washing stroke proceeds by using a small amount of washing water.

1 and 2, a description will be given of a general steam jet washing machine.

As shown, the cabinet 52 to form the exterior, the tub 56 is installed to be suspended by the spring 54 in the cabinet 52 and supported by the damper assembly 55, and A drum 58 rotatably installed inside the tub 56 to accommodate washing water and laundry, and a motor to rotate the drum 58 to be connected to the drum 58 behind the tub 56. 60 and a steam generator 70 positioned above the tub 56 to heat the wash water with high temperature and high pressure steam and to be supplied into the drum 58, and installed at a lower end of the tub 56. It is configured to include a pump device 80 to circulate by pumping the wash water of the tub 56.

In addition, the lower side of the tub 56 is equipped with a washing heater 40 so as to improve the washing performance by heating the washing water inside the tub 56 to a high temperature, washing to circulate the tub 56 The water temperature sensor 45 is installed to sense the temperature of the water and deliver it to the microcomputer (not shown) for controlling the overall system.

In addition, the drum washing machine is a water supply means 62 for supplying the wash water into the tub 56 and the drum 58, and a drain pump assembly for draining the wash water in the tub 56 and the drum 58 ( 66 is further included, the steam generator 70 is connected to the water supply means 62 is installed.

The water supply means 62 is a water supply valve assembly 62a for controlling whether water is supplied to the drum 58, and a detergent box installed to be connected between the water supply valve assembly 62a and the tub 56 to store detergent. An assembly 62b, first and second feed passages 62c and 62c 'connected to the detergent box assembly 62b and the steam generator 70 from the feed valve assembly 62a, respectively, and the steam generator 70 and one end thereof are connected to each other, and the other end is disposed inside the tub 56 and the drum 58 to include steam flow path 62d for supplying steam into the tub 56 and the drum 58. It is configured by.

At this time, the end 62d 'of the steam flow path 62d is formed in a nozzle shape so that steam can be injected at high speed, and passes through the gasket 57 connected between the tub 56 and the cabinet 52. 56 and the drum 58 are installed to be located inside.

In addition, the pump device 80 is connected to the tub 56 by the first circulation passage 82 and is connected to the steam passage 62d by the second circulation passage 84. It pumps the wash water inside and serves to circulate upward.

In particular, the steam generator (70); As shown in FIG. 3, the case 1 includes a case 1, a steam heater 2, a water level sensor 3, a temperature sensor 4, and a thermo fuse 5.

Here, the case (1) forms the appearance of the steam generating device to form a water storage space for storing the moisture required for steam generation.

At this time, a water supply pipe 1a connected to the second water supply passage 62c 'is formed at one side of the case 1, and the vapor evaporated in the case is formed at the other side of the case 1 in the drum 58. A steam discharge pipe 1b is formed to be connected to the steam flow path 62d so as to be supplied to the furnace.

And, the steam heater 2 is installed along the horizontal direction on the bottom space in the case 1, serves to heat the water stored in the case 1 for steam generation.

The water level sensor 3 and the temperature sensor 4 are respectively installed through one side of the upper surface of the case 1. At this time, the water level sensor 3 serves to detect the level of water contained in the case 1, the temperature sensor 4 serves to detect the temperature inside the case (1). do.

In addition, the thermo-fuse 5 is provided at a portion where the terminal of the steam heater 2 is located to cut off the power supplied to the steam heater 2 when the steam heater 2 is excessively heated. It plays a role.

With this configuration, when the steam generator 70 is operated, the water supply valve assembly 62a is opened so that the wash water is supplied to the space for storing water formed in the case 1 through the second water supply passage 62c '. do.

When water is supplied to the steam generator 70 up to the set water level, the water supply valve assembly 62a is blocked and the steam heater 2 is heated.

At this time, the heating of the wash water supplied into the case (1) through the heat of the steam heater (2) is made of steam is generated, the generated steam flows along the steam flow path (62d) the tub And 56 are injected into the drum 58.

The steam spraying function using the steam generator 70 is used as an additional function in the washing stroke.

However, even when the steam injection stroke is used, there is a limit to improving the washing performance. Therefore, the development of the washing algorithm using the steam injection function is continuously made.

Accordingly, the present invention is to contribute to the user's satisfaction with the washing effect of the washing algorithm, an object of the present invention is to provide an administrative control method of the steam jet washing machine for improving the washing effect of the washing algorithm using the steam injection function. have.

In order to achieve the above object, the present invention provides a steam injection machine in a washing machine having a washing motor for rotating the drum, a steam generator for generating high temperature steam, and a circulating pump for pumping and circulating the washing water in the drum. If a washing course including a stroke is selected, performing a steam spray stroke while driving a circulation pump under the same driving conditions as the washing motor; and stopping the steam spray stroke when the washing water temperature reaches a preset temperature due to the steam spray stroke. And it provides a stroke control method of the steam injection washing machine comprising the step of performing a washing stroke while driving the circulation pump in a predetermined pattern irrespective of the washing motor.

At this time, if re-water supply is required during the course of the stroke, characterized in that it further comprises the step of performing the re-water supply in the state of stopping the driving of the circulation pump.

The present invention, in the washing machine having a washing motor for rotating the drum, a steam generator for generating a high temperature steam, and a circulation pump for circulating the washing water in the drum, enters the steam injection stroke according to the user's command When the circulating pump is driven while driving the circulating pump under the same driving conditions as the washing motor for the preset time, and detecting the washing water level after the set time elapses, if the current washing water level is below the preset water level, It provides a stroke control method of the steam injection washing machine comprising the step of performing a re-water supply in the state of stopping the drive, and the step of terminating the stroke when the washing water temperature reaches a preset temperature due to the steam injection.

Therefore, according to the present invention, the washing effect of the washing algorithm including steam injection can be doubled by appropriately driving the circulation pump together with the washing motor during the steam injection stroke.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

Since the steam jet washing machine of the present invention is the same as the conventional configuration described above, the same name and the same reference numerals are provided for convenience of description, and detailed description of the entire component and its operation will be omitted.

The present invention includes a washing motor 60 for rotating the drum 58, and a steam generator 70 for generating high temperature steam and injecting the drum 58 into the drum (58).

In addition, a pump device 80 (hereinafter, referred to as a `` circulation pump '') for pumping the washing water in the tub 56 and circulating the drum 58 upward is provided.

Figure 4 is a flow chart showing a stroke control method of the steam jet washing machine according to the present invention.

The present invention provides a washing course including a steam injection stroke and the stroke driving the washing motor 60 and the circulation pump 80 together to improve the washing effect.

As shown, when the selection of the washing course is made by the user (S110), the water supply starts (S130).

When the washing water level reaches the first set water level H1 due to the water supply (S150), it is determined whether the course selected by the user is a washing course including a steam spray stroke (S170).

If the washing course selected by the user does not include the steam injection stroke, the selected general washing course is performed (S190).

On the other hand, when the washing course selected by the user includes a steam spray stroke, the steam generator 70 is driven to spray a high temperature steam into the drum 58 to perform a steam spray stroke (S210).

At this time, the steam injection stroke (S210) preferably drives the circulation pump 80 at the same actual operating rate as the wash motor 60 for a predetermined time (T230) (S230, S250).

That is, after entering the steam injection stroke, the circulation pump 80 is driven in synchronization with the actual operation rate of the washing motor 60 for a predetermined time (for example, 20 minutes), thereby increasing the penetration force of the washing water, thereby improving the effect of trapping. It can increase.

Subsequently, it is determined whether the washing water temperature has risen to the preset temperature t due to the steam injection at the time when the steam injection stroke has elapsed the set time T (S270).

When the washing water temperature does not reach the set temperature (t), the current washing water level is sensed, and it is determined whether the current washing water level is lower than the second set water level (H2) due to the packing.

In this case, the second set water level H2 is smaller than the first set water level H1.

As a result of the determination (S290), when the current washing water level decreases below the second set water level (H2), the water is resupplied to the first set water level (H1), in which case the circulating pump 80 It is preferable to stop the driving of (S310).

On the other hand, when the current washing water level does not decrease below the second set water level (H2), the process of controlling the circulating pump 80 in accordance with the actual operation rate of the washing motor 60 is continued (S330).

That is, by simultaneously driving the circulation pump 80 under the same conditions as the washing motor 60 while the steam injection stroke is carried out, it is possible to rapidly reduce the number of refills as a result of the bubbling.

When the current washing water temperature reaches the set temperature (t), the determination result (S270) turns off the steam generator 70 to end the steam injection stroke, and at the same time, the circulating pump 80 includes the washing motor ( Regardless of 60), the stroke is performed during the remaining washing time while driving in a predetermined pattern (S350).

For example, when the washing water temperature reaches the set temperature due to steam injection, the steam injection stroke is ended, and the circulation pump 80 is driven by a predetermined pattern consisting of 20 seconds on and 10 seconds off. Carry out the laundry administration.

Therefore, in the present invention, by properly driving the circulation pump together with the washing motor during the overall washing stroke as well as the steam injection stroke, the coating can be made quickly, thereby reducing the number of refills.

The present invention is not limited to the above-described embodiments, and as can be seen in the appended claims, modifications can be made by those skilled in the art to which the invention pertains, and such modifications are within the scope of the present invention.

The stroke control method of the steam jet washing machine according to the present invention described above can double the washing effect by properly driving the circulation pump with the washing motor during the washing stroke using steam spray. This can further improve the consumer's satisfaction with the washing performance.

Claims (3)

In a washing machine having a washing motor for rotating the drum, a steam generator for generating high temperature steam, and a circulation pump for pumping and circulating the washing water in the drum, If the user selects a washing course including a steam spray stroke, performing a steam spray stroke while driving a circulation pump under the same driving conditions as the washing motor; When the washing water temperature reaches the preset temperature due to the steam injection stroke, the steam injection stroke is stopped and the washing stroke is performed while driving the circulation pump in a predetermined pattern irrespective of the washing motor. Stroke control method of washing machine. The method of claim 1, The method of controlling the steam injection washing machine further comprising the step of performing the rewatering in a state in which the driving of the circulation pump is stopped when the rewatering is required during the course of the stroke. In a washing machine having a washing motor for rotating the drum, a steam generator for generating high temperature steam, and a circulation pump for pumping and circulating the washing water in the drum, When entering the steam injection stroke according to the user's command to perform the steam injection while driving the circulation pump under the same driving conditions as the washing motor for a predetermined time; Detecting the water level at the time when the set time has elapsed, and re-watering in a state where the driving of the circulating pump is stopped if the current water level is less than the preset level; The stroke control method of the steam injection washing machine, characterized in that the step of ending the stroke when the washing water temperature reaches the predetermined temperature due to the steam injection.

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