KR20170111128A - Apparatus for lighting a lamp in the refrigerator - Google Patents

Abstract

A lamp lighting device for a refrigerator is disclosed. The lamp lighting device of the refrigerator of the present invention includes a lamp driving unit for turning on or off a plurality of lamps installed on a lower surface of a door of an upper storage room; A door switch for sensing opening and closing of a door of a lower storage compartment provided below the upper storage compartment; And a control unit for operating the lamp driving unit according to whether the door of the lower storage room sensed through the door switch is opened or closed.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a refrigerator,

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a lamp lighting device for a refrigerator, and more particularly, to a lamp lighting device for a refrigerator that allows a lamp installed outside a refrigerator to be used as a high-temperature lamp and a mood lamp.

2. Description of the Related Art Generally, a refrigerator includes a compressor, a condenser, an expansion device, and an evaporator as main components to form a refrigeration cycle. The refrigerator absorbs heat inside the storage compartment by evaporating the refrigerant flowing in the evaporator, And is used to store various foods in a refrigerated or frozen state for a long period of time.

Such a refrigerator senses when a door of a refrigerator is opened by a user and turns on a high-intensity lamp installed in the storage room, so that even if a user turns off the interior light, various foods stored in the storage room can be easily As shown in FIG.

For this purpose, the door switch of a mechanical contact installed on one side of the refrigerator is used to detect whether the door of the refrigerator is opened or closed, and the state of opening / closing of the door is detected by using an electronic non-contact switch using a Hall IC , Thereby controlling the operation of the internal lamp.

For example, when a door switch and an internal lamp are used to indicate the open and close states of the left and right rooms in a two-door refrigerator, when the user opens the door of the left room, The door switch on the door detects the door open and accordingly turns on the high lamp in the left room. Likewise, when the user opens the door of the right room, the door switch in the right room detects the door opening and accordingly turns on the high room lamp in the right room.

On the other hand, in recent years, home electric appliances such as refrigerators have been reinforced with interior functions including mood lamps. In other words, the indoor atmosphere is brightened through the indirect lighting effect, thereby enhancing the consumers' satisfaction with the visual effect.

However, recently, as the capacity of the refrigerator has been increased for the convenience of the user, the room of the refrigerator is gradually increasing. Accordingly, a high internal lamp is installed in each room, and a mood lamp is installed to the outside for the function of the mood, which causes a problem that the number of parts increases excessively.

In addition, in the related art, when the door is closed, the interior lamp is installed inside the room. Therefore, there is a problem that the operating state of the interior lamp, that is, a failure or the like can not be confirmed from outside the product.

As a background technique of the present invention, there is a "device and method for lighting a lamp of a refrigerator ", Korean Patent Publication No. 10-2003-0075536 (published on September 26, 2003).

According to an aspect of the present invention, there is provided a lamp lighting device for a refrigerator, which is designed to overcome the above-mentioned problems, and which can use a lamp installed outside the refrigerator as a high-temperature lamp and a mood lamp .

According to an aspect of the present invention, there is provided an apparatus for lighting a lamp of a refrigerator, comprising: a lamp driving unit for turning on / off a plurality of lamps installed on a lower surface of a door of an upper storage chamber; A door switch for sensing opening and closing of a door of a lower storage compartment provided below the upper storage compartment; And a control unit for operating the lamp driving unit according to whether the door of the lower storage room sensed through the door switch is opened or closed.

In the present invention, the lamp is provided so as to radiate light in the inner and outer directions of the lower storage chamber.

In the present invention, when the door of the lower storage compartment is opened, the control unit operates the lamp driving unit so that the lamp is turned on according to a predetermined lighting pattern, and when the door of the lower storage compartment is closed, And the lamp driving unit is operated to make the lamp driving unit operate.

In the present invention, the control unit may operate the lamp driving unit to perform dimming control for raising the illuminance stepwise when the lamp is turned on and lowering the illuminance stepwise when the lamp is turned off.

In the present invention, when the door of the lower storage compartment is closed, the control unit operates the lamp driving unit to turn off the lamp after the lamp remains lit for a predetermined set time.

In the present invention, when a plurality of the lower storage compartments are provided in the left and right direction, the plurality of lamps are installed to correspond to each of the plurality of lower storage compartments.

In the present invention, the controller operates the lamp driving unit such that, when at least one of the plurality of lower storages is open, the plurality of lamps are turned on.

The present invention further includes a display drive sensing unit for sensing whether the display is driven and transmitting the display drive control signal to the control unit, wherein the control unit operates the lamp driving unit according to a driving on / off state of the display received from the display driving sensing unit .

In the present invention, when the display driving-on state is inputted from the display driving sensing unit, the control unit operates the lamp driving unit so that the lamp is maintained in a lighting state for a predetermined mood set time, do.

The lamp lighting device of a refrigerator according to an embodiment of the present invention can use a lamp installed outside the refrigerator as a high-temperature lamp and a mood lamp, thereby reducing the number of components and reducing the cost of the product.

Also, the lamp lighting device of the refrigerator according to an embodiment of the present invention can improve the aesthetics by providing a mood lamp effect without providing a separate mood lamp.

In addition, the lamp lighting device of the refrigerator according to the embodiment of the present invention can confirm the operation state of the internal lamp even when the internal lamp is installed on the outside, so that the failure of the internal lamp can be immediately confirmed So that the reliability of the product can be improved.

1 is a block diagram illustrating a lamp lighting device of a refrigerator according to an embodiment of the present invention.
FIG. 2 is a view illustrating a lighting state of a lamp according to opening of a door in a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention.
FIG. 3 is a view illustrating a lighting state of a lamp according to whether a display is driven in a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention.
4 is a flowchart illustrating a lamp lighting method of a refrigerator according to an embodiment of the present invention.
5 is a flowchart illustrating a lamp lighting method of a refrigerator according to whether a display is driven according to an embodiment of the present invention.

Hereinafter, a lamp lighting device of a refrigerator according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

FIG. 1 is a block diagram illustrating a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention. FIG. 2 is a diagram illustrating a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention. FIG. 3 is a diagram illustrating a lighting state of a lamp according to whether a display is driven in a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention. Referring to FIG. 3, a lamp lighting apparatus of a refrigerator will be described. same.

1, a lamp lighting apparatus of a refrigerator according to an embodiment of the present invention includes a door switch 10, a display driving sensing unit 20, a control unit 30, and a lamp driving unit 40 .

2, the refrigerator according to the embodiment of the present invention includes a first storage room R1 and a second storage room R2 in the left-right direction and a second storage room R2 in the left- R3 and a fourth storage chamber R4. The first door 51, the second door 52 and the third door 61 are respectively connected to the first storage chamber R1, the second storage chamber R2, the third storage chamber R3 and the fourth storage chamber R4. And a fourth door 62 are provided.

The door switch 10 senses opening and closing of the third door 61 and the fourth door 62. That is, the door switch 10 senses the opening and closing of the third door 61 and the fourth door 62, respectively, and outputs an ON signal to the controller (not shown) when the third door 61 and the fourth door 62 are opened 30 and provides an off signal to the control unit 30 when the third door 61 and the fourth door 62 are closed.

2, the door switch 10 is installed on the lower side of the refrigerator main body so as to be turned on and off according to the opening and closing of the third door 61 and the fourth door 62 located below the refrigerator.

However, the door switch 10 may be installed on the upper side of the refrigerator body so that the door switch 10 can be turned on and off according to the opening and closing of the first door 51 and the second door 52 located at the upper portion of the refrigerator .

The display driving sensing unit 20 senses whether the display 25 for inputting and outputting the driving state of the refrigerator is driven. That is, the display drive sensing unit 20 transmits the drive on / off state of the display 25 to the control unit 30. [

At this time, the display 25 can input the operation state of the refrigerator by the user, and can output the present operation state of the refrigerator to be provided to the user.

In addition, in the present embodiment, the display 25 is constituted by a hidden display and can be driven and displayed only during input / output without being driven normally.

The lamp driving unit 40 turns on or off the first lamp 41 and the second lamp 42 provided on the lower surfaces of the first door 51 and the second door 52. In this embodiment, one lamp driver 40 turns on or off the first lamp 41 and the second lamp 42, but the lamp driver 40 for turning on / off the first lamp 41 And a lamp driver 40 for turning off the second lamp 42 may be provided, respectively.

Here, the lamp driver 40 may include a relay switch.

Meanwhile, the first lamp 41 and the second lamp 42 may be formed of one lamp or a plurality of lamps, but the present invention is not limited thereto.

The first lamp 41 and the second lamp 42 may be connected in series with the door switch 10 so as to be turned on or off according to the on / off state of the door switch 10.

2, the first lamp 41 and the second lamp 42 are installed on the lower surface of the first door 51 and the second door 52, respectively. The first lamp 41 and the second lamp 42 may be installed to correspond to the third storage compartment R3 and the fourth storage compartment R4 respectively and the third storage compartment R3 and the fourth storage compartment R4 And the light is irradiated to the inside and the outside of the light emitting diode.

The control unit 30 operates the lamp driving unit 40 according to whether the third door 61 and the fourth door 62 sensed through the door switch 10 are opened or closed.

For example, when the third door 61 is opened, the controller 30 receives the ON state from the door switch 10 and operates the lamp driving unit 40 to be installed on the lower surface of the first door 51 The first lamp 41 is turned on. When the fourth door 62 is opened, the controller 30 receives the ON state from the door switch 10 and operates the lamp driver 40 to turn on the second door 52, The lamp 42 is turned on.

The controller 30 controls the lamp driver 40 to turn on the first lamp 41 and the second lamp 42 according to a predetermined lighting pattern when the third door 61 and the fourth door 62 are opened The third door 61 and the fourth door 62 are closed so that the first lamp 41 and the second lamp 42 are turned off according to a predetermined lighting pattern .

That is, when the third door 61 and the fourth door 62 are opened, the controller 30 causes the first lamp 41 and the second lamp 42 to be lit at the brightest brightness, It is possible to operate the lamp driving unit 40 to perform dimming control that is bright.

The control unit 30 controls the first and second lamps 41 and 42 so that the first and second lamps 41 and 42 are turned off immediately or the dimming control And the lamp driver 40 may be operated to be turned off after the third door 61 and the fourth door 62 are closed and maintained in a lighting state for a preset time period.

The control unit 30 controls the lamp driving unit 40 so as to perform the dimming control immediately after the first lamp 41 and the second lamp 42 are maintained in the lighting state for a preset time Can be operated.

The controller 30 operates the lamp driver 40 so that both the first lamp 41 and the second lamp 42 are lit even when either the third door 61 or the fourth door 62 is opened .

However, when a plurality of storage compartments located at the lower portion of the refrigerator are provided in the left and right direction, the controller 30 controls at least one of the plurality of the lower storage compartments, It is possible to operate the lamp driver 40 such that all of the plurality of lamps are turned on.

On the other hand, the controller 30 receives the driving on / off state of the display 25 from the display driving sensing unit 20 and operates the lamp driving unit 40 according to the driving on / off state of the display 25.

That is, even if the third door 61 and the fourth door 62 are closed, the controller 30 controls the first lamp 41 to be turned on when the display 25 is turned on, The control unit 30 activates the lamp driving unit 40 so that the first lamp 42 and the second lamp 42 are turned on and when the driving-off state of the display 25 is inputted from the display driving- The lamp driving unit 40 can be operated so that the first lamp 41 and the second lamp 42 are turned off.

At this time, when the drive-on state of the display 25 is inputted from the display drive sensing unit 20, the control unit 30 may turn on the first lamp 41 and the second lamp 42 according to a predetermined lighting pattern When the driving off state of the display 25 is inputted from the display driving sensing unit 20, the lamp driving unit 40 is operated so that the first lamp 41 and the second lamp 42 are turned off according to a preset unlit pattern .

For example, the control unit 30 controls the first and second lamps 41 and 42 so that the first and second lamps 41 and 42 are turned on at the brightest brightness, The lamp driving unit 40 may be operated to operate the driving unit 40 or perform dimming control in which the brightness is gradually increased gradually.

The control unit 30 controls the lamp driving unit 40 so that the first lamp 41 and the second lamp 42 are turned off immediately when the driving off state of the display 25 is inputted from the display driving sensing unit 20 The lamp driving unit 40 may be operated to perform the dimming control in which the display 25 is operated or gradually dimmed out gradually and the display 25 is operated and maintained in the lighting state for a predetermined mood setting time The lamp driving unit 40 may be controlled.

On the other hand, in the present embodiment, the lighting pattern, the light-off pattern, the set time, and the mood set time may be set in advance in the designing stage or may be set by the user.

3 is a flowchart illustrating a lamp lighting method of a refrigerator according to an embodiment of the present invention.

As shown in FIG. 3, the lamp lighting method of the refrigerator according to an embodiment of the present invention firstly checks whether the controller 30 receives the ON state from the door switch 10 (S100).

2, the door switch 10 is installed on the lower side of the refrigerator main body so as to be turned on and off according to the opening and closing of the third door 61 and the fourth door 62 located below the refrigerator.

That is, the controller 30 can determine whether the third door 61 and the fourth door 62 are opened through the on state of the door switch 10 input from the door switch 10.

When the door switch 10 is turned on and the third door 61 and the fourth door 62 are opened in step S100, the controller 30 controls the first lamp 41 and the second lamp 41 The lamp driving unit 40 is operated so that the lamp 42 is turned on (S110).

For example, when the third door 61 is opened, the controller 30 receives the ON state from the door switch 10 and operates the lamp driving unit 40 to be installed on the lower surface of the first door 51 The first lamp 41 is turned on in accordance with the lighting pattern. When the fourth door 62 is opened, the controller 30 receives the ON state from the door switch 10 and operates the lamp driver 40 to turn on the second door 52, The lamp 42 is turned on in accordance with the lighting pattern.

Here, the lighting pattern is a pattern in which the first lamp 41 and the second lamp 42 are lit at the brightest brightness simultaneously with the opening of the third door 61 and the fourth door 62, And a dimming control pattern for gradually brightening the brightness of the second lamp 42 step by step.

Since the first lamp 41 and the second lamp 42 are provided to be illuminated inward and outward of the third storage chamber R3 and the fourth storage chamber R4, When the fourth door 62 is opened, the inside of the door can be illuminated.

The control unit 30 operates the lamp driving unit 40 so that both the first lamp 41 and the second lamp 42 are turned on even when either the third door 61 or the fourth door 62 is opened .

On the other hand, when the third door 61 and the fourth door 62 are closed in step S100, the process is terminated.

Next, the control unit 30 checks whether the door switch 10 is in the OFF state (S120).

That is, the control unit 30 can determine whether the third door 61 and the fourth door 62 are closed through the off state of the door switch 10 inputted from the door switch 10. [

When the third door 61 and the fourth door 62 are closed in step S120, the controller 30 controls the first and second lamps 41 and 42 to turn off the first and second lamps 41 and 42 according to the previously set off- (Step S130).

In this embodiment, the controller 30 controls the lamp driver 40 (not shown) so that the first lamp 41 and the second lamp 42 are all lit even when either the third door 61 or the fourth door 62 is opened. The controller 30 controls the lamp driver 40 to turn off the first lamp 41 and the second lamp 42 only when the third door 61 and the fourth door 62 are all closed, Can be controlled.

Here, the unlit pattern is a pattern for directly turning off the first lamp 41 and the second lamp 42 simultaneously with the closing of the third door 61 and the fourth door 62, the first lamp 41, A dimming control pattern for causing the second lamp 42 to gradually turn off in a dimly dim state and a dimming control pattern for keeping the dimming control pattern in a lighting state for a preset time after the third door 61 and the fourth door 62 are closed, And the like.

The controller 30 controls the lamp driving unit 40 to perform the dimming control so that the first lamp 41 and the second lamp 42 are turned off immediately after being maintained in the lighting state for a preset time, Can be operated.

On the other hand, if the ON state inputted from the door switch 10 is maintained in step S120, the control unit 30 returns to step S110 so as to maintain the first lamp 41 and the second lamp 42 in the on state have.

5 is a flowchart illustrating a lamp lighting method of a refrigerator according to whether a display is driven according to an embodiment of the present invention.

As shown in FIG. 5, a lamp lighting method of a refrigerator according to whether a display is driven according to an embodiment of the present invention will be described as follows.

First, the control unit 30 determines whether the display 25 is in an on-state through the display driving sensing unit 20 (S200).

That is, the control unit 30 receives the driving on / off state of the display 25 from the display driving sensing unit 20.

When the driving-on state of the display 25 is inputted from the display drive sensing unit 20 in step S200, the controller 30 controls the first lamp 41 and the second lamp 42 to be turned on So that the lamp driving unit 40 is operated (S210).

Here, the lighting pattern is a pattern in which the first lamp 41 and the second lamp 42 are turned on at the brightest brightness while the driving-on state of the display 25 is inputted from the display driving sensing unit 20, And a dimming control pattern for gradually increasing the brightness of the lamp 41 and the second lamp 42 in a stepwise manner.

4, when the third door 61 and the fourth door 62 are closed, the controller 30 receives the driving-on state of the display 25 from the display driving sensing unit 20, The lamp driver 40 may be operated so that the first lamp 41 and the second lamp 42 are turned on.

Since the first lamp 41 and the second lamp 42 are provided to be illuminated inward and outward of the third storage chamber R3 and the fourth storage chamber R4, Even when the fourth door 62 is closed, it can be used as a mood lamp while keeping the lighting state for a predetermined set time.

On the other hand, when the driving-off state of the display 25 is input from the display driving sensing unit 20 in step S200, the process is terminated.

Next, the control unit 30 determines whether the display 25 is in the driving off state through the display driving sensing unit 20 (S220).

That is, the control unit 30 can determine whether the driving of the display 25 has been completed.

When the driving off state of the display 25 is input from the display driving sensing unit 20 in step S220, the controller 30 controls the first lamp 41 and the second lamp 42 to turn off So that the lamp driving unit 40 is operated (S230).

The off-off pattern is a pattern in which the first and second lamps 41 and 42 are turned off immediately after the driving-off state of the display 25 is input from the display drive sensing unit 20, A dimming control pattern for gradually turning off the second lamp 42 and gradually dimming the dimming control pattern and a pattern for turning off the display after the display 25 is driven and held for a preset mood set time, .

On the other hand, if it is determined in step S220 that the display 25 is in the driving-on state, the controller 30 may return to step S210 to maintain the first lamp 41 and the second lamp 42 in a turned-on state.

As described above, the lamp lighting device of a refrigerator according to an embodiment of the present invention can use a lamp installed outside the refrigerator as a high-temperature lamp and a mood lamp, thereby reducing the number of components and reducing the cost of the product have.

Also, the lamp lighting device of the refrigerator according to an embodiment of the present invention can improve the aesthetics by providing a mood lamp effect without providing a separate mood lamp.

In addition, the lamp lighting device of the refrigerator according to the embodiment of the present invention can confirm the operation state of the internal lamp even when the internal lamp is installed on the outside, so that the failure of the internal lamp can be immediately confirmed So that the reliability of the product can be improved.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.

Accordingly, the true scope of the present invention should be determined by the following claims.

10: door switch 20: display driving detection unit
25: display 30:
40: lamp driving unit 41, 42: first and second lamps
51, 52: first and second doors 61, 62: third and fourth doors
R1 and R2: first and second storage rooms R3 and R4: third and fourth storage rooms

Claims (9)

A lamp driving unit for turning on or off a plurality of lamps provided on a lower surface of the door of the upper storage chamber;
A door switch for sensing opening and closing of a door of a lower storage compartment provided below the upper storage compartment; And
And a control unit for operating the lamp driving unit according to whether the door of the lower storage room sensed through the door switch is opened or closed.
The method according to claim 1,
The lamp includes:
Wherein the light is irradiated inside and outside the lower storage compartment.
The method according to claim 1,
Wherein,
When the door of the lower storage compartment is opened, the lamp driving unit is operated so that the lamp is turned on according to a predetermined lighting pattern, and when the door of the lower storage compartment is closed, the lamp driving unit is operated so that the lamp is turned off according to a predetermined lighting pattern The lamp lighting device of the refrigerator characterized by.
The method according to claim 1,
Wherein,
Wherein the lamp driving unit is operated to perform dimming control for raising the illuminance step by step when the lamp is lit and dimming the illuminance gradually when the lamp is turned off.
The method according to claim 1,
Wherein,
Wherein the lamp driving unit is operated to turn off the lamp when the door of the lower storage room is closed after the lamp maintains the lighting state for a preset time period.
The method according to claim 1,
Wherein the plurality of lamps are installed to correspond to each of the plurality of lower storage compartments when the lower storage compartments are provided in a plurality of left and right directions.
The method according to claim 6,
Wherein,
Wherein the lamp driving unit is operated to turn on the plurality of lamps when at least one of the plurality of lower storage rooms is opened in the lower storage room.
The method according to claim 1,
And a display drive sensing unit for sensing whether the display is driven and transmitting the sensing result to the control unit,
Wherein the control unit operates the lamp driving unit according to a driving ON / OFF state of the display received from the display driving sensing unit.
9. The method of claim 8,
Wherein,
Wherein the lamp driving unit activates the lamp driving unit to turn off the lamp when the display driving-on state is received from the display driving sensing unit, after the lamp is maintained in the lighting state for a predetermined mood set time.

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