KR101137339B1 - Method for controlling lamp of the washing machine - Google Patents

Abstract

The present invention relates to a lighting control method of a washing machine for controlling the lighting of the interior space, the washing machine provided with a lamp for illuminating the interior space, and a door locking device for preventing the opening and closing of the door during the stroke, Lighting the lamp for a first set time T1 when a command is applied; In addition, when the door lock is released after the washing operation is started, the lighting control method of the washing machine comprising the step of turning on the lamp for a second set time (T2).

Therefore, the present invention can provide a more reliable product through software lighting control without the need for a separate device by controlling the lighting of the interior space according to the initial power-up and door lock state irrespective of opening and closing of the door. .

Lighting, lamps, door locks

Description

Lighting control method of washing machine {Method for controlling lamp of the washing machine}

1 is a perspective view showing the overall structure of a drum washing machine according to the prior art

2 is a flow chart showing a lighting control method of the washing machine according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

13: door lock 20: tub

30: drum 61: lamp

The present invention relates to a washing machine, and more particularly to a lighting control method of a washing machine for controlling the lighting of the interior space.

In general, the washing method of the drum washing machine is a method of washing by using the friction force of the rotating drum and the laundry by receiving the driving force of the motor while the detergent, the washing water and the laundry are put into the drum. These don't get tangled together and can have a pounding and scrubbing wash effect.

As shown in FIG. 1, the drum washing machine has a tub 20 into which a main body 10 constitutes an exterior and wash water is introduced into the main body 10. The tub 20 has an opening formed toward the front side thereof, and a door 40 opening and closing the opening of the tub 20 is installed at the front of the main body 10 so that a user can put or take out a laundry object.

In addition, a plurality of springs 70 for elastically supporting the tub 20 are installed above the tub 20, and the tub 20 is buffered and supported at the lower portion of the tub 20 to absorb vibrations during the stroke. A shock absorber 50 is installed.

In addition, the tub 20 is provided with a cylindrical drum 30 in which a laundry object is put in and washed. The interior of the drum 30 is in communication with the outside by a door 40 installed in the front of the main body 10.

In addition, the drum 30 is driven by a drive motor (not shown) installed behind the tub 20, and a plurality of dehydration holes are formed in the inner wall of the drum 30 to allow the inflow and outflow of the washing water into the inside thereof. A plurality of lifters freely made and protruding inwardly are installed at equal intervals to increase the washing effect by lifting the laundry object during rotation.

In addition, a drain pipe 19 is installed at the lower side of the tub 20 to allow drainage of the wash water in a rinsing or dehydration process, and a drain pump 18 for forcibly draining the wash water is installed at the end of the drain pipe 19. do.

On the other hand, the door lock device 13 is installed to prevent the door 40 from being opened during the stroke. The door lock device 13 includes a latch 13a provided on the door 40 side, and a main body. It consists of the door lock switching assembly 13b provided in the 10 side. Although not shown, the door lock switch assembly 13b is formed of a latch holder and a solenoid.

With this configuration, when the stroke start command is input while the door 40 is closed, power is applied to the solenoid under the control of a microcomputer (not shown). At this time, the solenoid pushes the latch holder to be latched to the latch 13a on the door 40 side so that the door 40 is not opened during the stroke.

When the washing is completed or a pause command is input, the power supplied to the solenoid is cut off by the control of the microcomputer, and the latch 40 is returned to its original position so that the door 40 can be opened and closed.

On the other hand, the lighting device 60 for illuminating the inner space of the tub 20 is installed so that the user is easy to put or take out the laundry, the lighting device 60 is installed on top of the tub 20 tub ( A lamp 61 for irradiating light into the interior of the lamp 20 and a reed switch 62 provided in the front portion of the main body 10 in which the door 40 is installed to control the application of power to the lamp 61. .

In this case, the reed switch 62 connected to the lamp 61 to control the power of the lamp 61 may be pressed so that the pressing part 62a of the reed switch 62 is pressed when the door 40 is closed. 40 is installed in a position in contact with the inner surface of the door 40 in the closed state.

The reed switch 62 is turned off when the door 40 is closed, and the power is connected when the door 40 is opened. When the user opens the door 40, the lamp 61 is turned on so that the inside of the drum 30 is turned on. To illuminate the lights.

However, the lighting apparatus of the conventional drum washing machine has the following problems.

First, in the case of the reed switch, since the switching operation is repeatedly performed according to the opening and closing of the door, it may not only affect the life of the component but also may cause an error due to wear, etc. in the long term use.

Second, since the mechanical coupling structure between the reed switch and the door and the power supply structure of the lamp through the reed switch should be designed, the product cost increases and the structure is complicated.

Third, when the door is opened, the lamp is inevitably lit to illuminate the interior space.If the user accidentally leaves the door open for a long time, the lamp continuously generates heat and the temperature rises, which shortens the life of the lamp and causes a fire. There was a risk of a safety accident.

The present invention is to solve the above problems, an object of the present invention is to provide an algorithm that can control the lamp for illuminating the interior space irrespective of opening and closing of the door.

Another object of the present invention is to provide a lighting control method of a washing machine capable of controlling the lamp by software by omitting a configuration (that is, a reed switch) to control the power of the lamp according to opening and closing of the door.

Still another object of the present invention is to provide a lighting control method of a washing machine for providing a more reliable product by ensuring a lamp life through a stable lamp control and preventing safety accidents.

In order to achieve the above object, the present invention is a washing machine equipped with a lamp for illuminating the internal space, and a door lock device for preventing the opening and closing of the door during the stroke, the first setting of the lamp when the power-up command is applied Lighting for a time T1; In addition, when the door lock is released after the washing operation is started, the lighting control method of the washing machine comprising the step of turning on the lamp for a second set time (T2).

According to the present invention, the lamp is turned off when the first set time T1 and the second set time T2 elapse, and the first set time T1 after the lamp is turned on by the power application command. When the washing stroke start command is applied within the present invention, the lighting control method of the washing machine further includes the step of forcibly turning off the lamp even if the first set time T1 has not elapsed.

Here, the first set time T1 is preferably shorter than the second set time T2.

In the present invention, the release of the door lock device is characterized in that to release the door lock (door lock) state to enable the opening and closing of the door when the washing stroke is terminated or a pause command is applied during the stroke.

In this case, releasing the door lock state according to the pause command is to release the door lock device only when the washing water level is lower than the preset water level or the washing water temperature is lower than the preset temperature when the pause command is applied. It is done.

Therefore, according to the present invention, by controlling the lighting of the internal space according to the initial power-on and door lock state regardless of opening and closing of the door, it is possible to provide a more reliable product through software lighting control without requiring a separate mechanism. have.

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

The washing machine of the present invention has components similar to those of the prior art, and the same components are assigned the same names and the same reference numerals for convenience of description.

The washing machine according to the present invention includes a lamp 61 for illuminating an internal space and a door locking device 13 for preventing opening and closing of the door 40 during a stroke.

Here, the lamp 61 is configured such that power can be applied by an electric signal of the microcomputer. For example, by separately configuring a lamp driving means for controlling the driving of the lamp 61, when the micom outputs a control signal to the lamp driving means when the lamp 61 needs to be turned on, the lamp driving means may be The lamp 61 may be turned on by recognizing the control signal.

The door locking device 13 includes a latch 13a provided at the door 40 side and a door lock switching assembly 13b provided at the main body 10 side. The door lock switching device is controlled according to the control of the microcomputer. The assembly 13b latches the latch 13a to prevent the door 40 from being opened or closed while the stroke is in progress.

In this case, the door locking device 13 is for preventing the door 40 from being opened during the stroke by the electric signal of the microcomputer, and the structure and structure of the door locking means may be variously changed.

However, the present invention does not require a reed switch configuration for controlling the power of the lamp 61 in accordance with the opening and closing of the door 40 disclosed in the related art.

Therefore, the present invention can eliminate the connection structure of the reed switch 62 and the lamp 61 and the mechanical coupling structure between the reed switch 62 and the door 40 by omitting the conventional reed switch 62.

Referring to Figure 2, when explaining the lighting control method of the washing machine according to the present invention.

In general, a user inputs a power-on command (power key) through a function operation unit (that is, a user input unit) installed in the main body 10 of the washing machine, and then selects a course suitable for laundry to be washed among a plurality of washing courses. Select and enter the start command (start key).

From the user's operation, it is first determined whether a power-up command is input (S10), and when the power-up command is input, the lamp 61 is immediately turned on (S11).

At this time, when the lamp 61 is turned on, the light of the lamp 61 is primarily irradiated into the inner space of the tub 20 to illuminate the inside of the drum 30 through the dehydration hole formed in the inner wall of the drum 30. .

After the power is applied, it is determined whether a washing course is selected from the user and an administrative start command for the washing course is input (S12).

As a result of the determination (S12), it is determined whether the first set time T1 (for example, about 3 minutes) has elapsed from the time when the lamp 61 is turned on if the stroke start command is not input after the power is applied. (S13).

As a result of the determination (S13), when the power start is applied, that is, after the first set time T1 has elapsed since the lamp 61 is turned on, the lamp 61 is forcibly turned off. (S14).

On the other hand, when the determination result (S12), the lamp 61 is turned on and the administrative start command is input from the user within the first set time (T1), even if the first set time (T1) does not pass, the lamp 61 is forced. Turn off (S15).

In addition, the door lock switch assembly 13b is operated so that the door 40 does not open while the stroke is in progress, the latch 13a on the door 40 side is hung and the stroke corresponding to the washing course selected by the user is performed ( S16).

Thereafter, it is determined whether the door locking device 13 is released (S17).

Here, the door locking device 13 may be released when all strokes are terminated or a pause command is input from the user during the stroke. However, the door lock may be released only when the washing water level and the washing water temperature are below a reference value in order to prevent an accident due to the overflow of the washing water or the hot washing water.

As a result of the determination (S17), when the stroke is terminated or a pause command is input and the door lock device 13 is released, the lamp 61 is turned on to facilitate checking or withdrawal of the laundry (S18). Illuminate the interior space of

At this time, the lit lamp 61 is automatically turned off when the second set time T2 (for example, about 10 minutes) elapses (S19, S20).

However, in the situation where the door lock device 13 is released by the pause command, it is preferable to turn off the lamp 61 even if the second set time T2 has not elapsed when the administration start command is input again from the user.

Therefore, the present invention illuminates the inside of the drum by turning on a lamp when the initial power is applied or the door locking device is released regardless of opening or closing of the door.

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.

Lighting control method of the washing machine according to the present invention described above has the following effects.

First, it is possible to provide a product having a simpler structure by eliminating unnecessary structures and wiring structures by software control of the lamp for illuminating the interior space irrespective of opening and closing of the door.

Second, stable lamp control can guarantee lamp life and prevent safety accidents to provide more reliable products.

Claims (6)

A washing machine having a lamp for illuminating an interior space and a door locking device for preventing the door from being opened or closed during a stroke, Lighting the lamp for a first preset time T1 when a power-up command is applied; And, And turning on the lamp for a second set time (T2) when the door locking device is released after the washing operation is started. The method of claim 1, And turning off the lamp after the first set time T1 and the second set time T2 have elapsed. The method of claim 1, And if the washing stroke start command is applied within the first set time T1 after the lamp is turned on by the power application command, forcibly turning off the lamp even if the first set time T1 has not elapsed. Lighting control method of the washing machine characterized in that. The method of claim 1, The first set time T1 is shorter than the second set time T2. The method of claim 1, The release of the door lock device is a lighting control method of a washing machine, characterized in that to release the door lock (door lock) state to open and close the door when the washing stroke is terminated or a pause command is applied during the stroke. The method of claim 5, The release of the door lock state according to the pause command may be performed by releasing the door lock device only when the washing water level is lower than the preset water level or the washing water temperature is lower than the preset temperature at the time when the pause command is applied. Lighting control method of the washing machine.

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