KR20160091775A - Control apparatus for lamp of refrigerator - Google Patents

Abstract

A control apparatus for an internal lamp of a refrigerator is disclosed. According to the present invention, the control apparatus for an internal lamp of a refrigerator comprises: a door switch sensing an opening and closing state of a first door; a proximity switch installed in a second door to sense a proximity state with the first door; a second lamp driving unit turning on and off a second internal lamp of a second storage chamber where the second door is installed; and a control unit determining the opening and closing state of the second door in accordance with the states of the door switch and the proximity switch to operate the second lamp driving unit.

Description

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

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high-temperature lamp control apparatus for a refrigerator, and more particularly, to a high-temperature lamp control apparatus for a refrigerator that determines an open / closed state of an intermediate door of a refrigerator through an open / close state of an adjacent door,

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-level lamp installed inside the storage room, thereby enabling a user to easily identify various foods stored in the storage room at night when the indoor light is off do.

To this end, it is detected whether the door of the refrigerator door is open or closed by using a door switch of a mechanical contact installed at one side of the refrigerator, or an open / closed state of the door is sensed by using an electronic non-contact switch using a Hall IC It controls the operation of the internal lamp.

Background Art [0002] The background art of the present invention is disclosed in Korean Patent Laid-Open Publication No. 10-2009-0119082 (published on November 19, 2009) entitled "

In recent years, the refrigerator has become larger in capacity for user's convenience, and the doors of the refrigerator are increasingly increasing. Accordingly, it is necessary to install wiring for installing a door switch or a sensing sensor in order to detect the opening and closing state of the door, but there is a problem that wiring work is difficult in the case of an intermediate door.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a door switch, which is installed in a door wall of a refrigerator, And to provide a high-temperature lamp control device for a refrigerator which determines whether the door is open or closed to light up the internal lamp.

According to an aspect of the present invention, an apparatus for controlling an internal lamp of a refrigerator includes: a door switch for detecting an open / closed state of a first door; A proximity switch installed on the second door to sense proximity to the first door; A second lamp driving unit for turning on a second high temperature lamp of a second storage room in which the second door is installed; And a control unit for operating the second lamp driver by determining the open / closed state of the second door according to the state of the door switch and the proximity switch.

The present invention further includes a first lamp driving unit for turning on the first lamp of the first storage room provided with the first door, and the control unit operates the first lamp driving unit according to the state of the door switch.

In the present invention, the proximity switch is a magnetic switch provided so as to face the upper and lower surfaces of the first door and the second door.

In the present invention, the control unit operates the second lamp driving unit when the first door is opened.

In the present invention, when the first door is closed, the controller determines that the second door is closed when the proximity switch is on, and determines that the second door is open when the proximity switch is off.

The apparatus for controlling the internal lamp of the refrigerator according to the present invention determines the opening and closing state of the intermediate door through the state of the door switch installed on the door wall of the refrigerator to detect the opening and closing of the door, It is possible to turn off the internal lamp of the lamp.

Further, according to the present invention, even in the case of an intermediate door in which wiring work is difficult, it is possible to determine the opening / closing state of the door through the close / close state of the adjacent door.

1 is a block diagram showing an apparatus for controlling the internal lamp of a refrigerator according to an embodiment of the present invention.
2 is a view illustrating an installation state of a door switch and a proximity switch in an apparatus for controlling an internal lamp of a refrigerator according to an embodiment of the present invention.
FIG. 3 is a table showing the door open / close state according to the state of the door switch and the proximity switch in the apparatus for controlling a high-temperature lamp of a refrigerator according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating a method of controlling a high-temperature lamp of a refrigerator according to an embodiment of the present invention.
FIG. 5 is a flowchart illustrating a method for controlling a high-temperature lamp of a refrigerator according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an apparatus for controlling an internal lamp of a refrigerator according to 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 an apparatus for controlling a high-temperature lamp of a refrigerator according to an exemplary embodiment of the present invention. FIG. 2 is a block diagram illustrating an apparatus for controlling an internal lamp of a refrigerator according to an exemplary embodiment of the present invention. FIG. 3 is a table showing the door open / close state according to the state of the door switch and the proximity switch in the apparatus for controlling a high-temperature lamp of a refrigerator according to an embodiment of the present invention.

1 and 2, the apparatus for controlling the internal lamp of a refrigerator according to an embodiment of the present invention includes a door switch 10, a proximity switch 20, a first lamp driver 40, (50) and a control unit (30).

 The door switch 10 senses the opening and closing state of the first door 42 and provides an ON signal to the control unit 30 when the first door 42 is opened. When the first door 42 is closed Off signal to the control unit 30. [

The proximity switch 20 is installed on the second door 52 and senses the proximity of the first door 42 to the first door 42 and provides the ON signal to the control unit 30 when the proximity switch 20 faces the first door 42, And provides an OFF signal to the control unit 30 when the first door 42 is away from the first door 42. [

Here, the door switch 10 is installed in the main body of the refrigerator so that the door switch 10 can be turned on and off according to the opening and closing of the upper door or the lower door of the refrigerator as shown in FIG.

In the present embodiment, as shown in FIG. 2, when the five doors are installed, the upper door and the first door 42 and the second door 52, which are middle doors, will be described.

Therefore, the proximity switch 20 is installed to measure the proximity state of the upper door and the lower door by installing a magnetic switch on the lower surface of the upper door and the upper surface of the lower door.

However, the present invention is not limited to this, but may be configured to determine the opening / closing state of the middle door based on a door switch installed on the lower door and a proximity switch installed to detect the proximity state of the lower door and the middle door.

The second lamp driver 50 turns off the second high lamp 55 of the second storage room 54 in which the second door 52 is installed.

The first lamp 42 may include a first lamp driver 40 for turning on the first lamp 45 of the first storage room 44 provided with the first door 42.

In this case, the first lamp driver 40 and the second lamp driver 50 may be configured as relay switches.

On the other hand, the first high temperature lamp (45) and the door switch (10) may be connected in series to be turned on and off according to the on / off state of the door switch (10).

The control unit 30 determines the open / closed state of the second door 52 according to the state of the door switch 10 and the proximity switch 20, and operates the second lamp driving unit 50.

For example, when the first door 42 is opened as shown in FIG. 3, the controller 30 receives the ON state from the door switch 10, The first door 42 and the second door 52 may be in a state of being close to each other and may be determined to be open together. Accordingly, the controller 30 determines that the second door 52 is open and activates the second lamp driver 50 to turn on the second high lamp 55. If the second high temperature lamp 55 is in the ON state, it is maintained in the ON state.

On the other hand, when the proximity switch 20 is in the off state when the door switch 10 is on, the first door 42 and the second door 52 are separated from each other, It is determined that the second door 52 is in the closed state. Accordingly, the controller 30 operates the second lamp driver 50 to turn off the second lamp 55. If the second over-ramp 55 is in the unlit state, it remains unlit.

When the first door 42 is opened and the second door 52 is opened but the first door 42 is not in proximity to the first door 42, When the first door 42 is opened, the second lamp driving unit 50 is operated in a state in which the second door 52 is opened. The second high temperature lamp 55 may be turned on.

When the first door 42 is closed, the controller 30 receives the OFF state from the door switch 10, and when the ON state is inputted from the proximity switch 20, The second door 52 can be judged to be in a close state and close together. Accordingly, the controller 30 determines that the second door 52 is closed and operates the second lamp driver 50 to turn off the second high lamp 55. If the second high temperature lamp 55 is in an unlit state, it is maintained in an unlit state.

However, when the proximity switch 20 is in the OFF state when the door switch 10 is in the OFF state, the first door 42 and the second door 52 are separated from each other, It is determined that the second door 52 is in the open state. Accordingly, the controller 30 operates the second lamp driver 50 to turn on the second lamp 55. If the second high temperature lamp 55 is in the ON state, it is maintained in the ON state.

FIG. 4 is a flowchart illustrating a method of controlling a high-temperature lamp of a refrigerator according to an embodiment of the present invention.

As shown in FIG. 4, in the method for controlling a high-temperature lamp of a refrigerator according to an embodiment of the present invention, the controller 30 receives the state of the door switch 10 and the proximity switch 20 (S10).

Thereafter, the controller 30 determines whether the door switch 10 is on (S12).

If the door switch 10 is turned on in step S12, the controller 30 operates the first lamp driver 40 to turn on the first lamp 45 (S14). At this time, if the first intensifying lamp 45 is in the ON state, the ON state is maintained.

Thereafter, the control unit 30 determines whether the state of the proximity switch 20 is on (S16).

If the proximity switch 20 is turned on in step S16, the control unit 30 determines that the first door 42 is in a state in which the first door 42 is close to the second door 52, It is determined that the door 52 is opened and the second lamp driver 50 is operated to turn on the second high lamp 55 (S18). At this time, if the second high temperature lamp 55 is in the ON state, it is maintained in the ON state.

On the other hand, when the proximity switch 20 is in the off state in step S16, the controller 30 determines that the first door 42 is in a state in which the first door 42 and the second door 52 are apart from each other The second door 52 is determined to be in a closed state, and the second lamp driver 50 is operated to turn off the second high lamp 55 (S24). At this time, if the second high temperature lamp 55 is in the unlit state, it remains in the unlit state.

On the other hand, if the door switch 10 is turned off in step S12, the controller 30 activates the first lamp driver 40 to turn off the first lamp 45. At this time, if the first intensifying lamp 45 is in the unlit state, the unlit state is maintained (S20).

Thereafter, the control unit 30 determines whether the state of the proximity switch 20 is on (S22).

If the proximity switch 20 is turned on in step S22, the controller 30 determines that the first door 42 is in the closed state with the first door 42 and the second door 52 being close to each other, The second lamp driver 50 is operated to turn off the second high lamp 55 (S24). At this time, if the second high temperature lamp 55 is in the unlit state, it remains in the unlit state.

On the other hand, when the proximity switch 20 is in the off state in step S22, the controller 30 determines that the first door 42 is closed because the first door 42 and the second door 52 are apart from each other, The second door 52 is determined to be in the open state, and the second lamp driver 50 is operated to turn on the second high lamp 55 (S18). At this time, if the second high temperature lamp 55 is in the ON state, it is maintained in the ON state.

FIG. 5 is a flowchart illustrating a method for controlling a high-temperature lamp of a refrigerator according to another embodiment of the present invention.

As shown in FIG. 5, the method of controlling the high-temperature lamp of the refrigerator according to another embodiment of the present invention will be described as follows.

First, the control unit 30 receives the states of the door switch 10 and the proximity switch 20 (S30).

Thereafter, the controller 30 determines whether the door switch 10 is on (S32).

When the door switch 10 is turned on in step S32, the controller 30 operates the first lamp driver 40 and the second lamp driver 50 to turn on the first high lamp 45 and the second high lamp 55) (S34). At this time, if the first intensifying lamp (45) and the second intensifying lamp (55) are in a lighting state, the lighting state is maintained.

However, if the door switch 10 is turned off in step S32, the controller 30 operates the first lamp driver 40 to turn off the first lamp 45 (S36). At this time, if the first intensifying lamp 45 is in the unlit state, it remains in the unlit state.

Thereafter, the control unit 30 determines whether the state of the proximity switch 20 is on (S38).

If the proximity switch 20 is turned on in step S38, the controller 300 determines that the first door 42 is in the close state with the first door 42 and the second door 52, The second lamp driving unit 50 is operated to turn off the second high lamp 55 in step S40. At this time, if the second high lamp 55 is in the unlit state, it remains in the unlit state.

On the other hand, when the proximity switch 20 is in the off state in step S38, the controller 30 determines that the first door 42 is closed because the first door 42 and the second door 52 are apart from each other, The second door 52 is determined to be in the open state, and the second lamp driver 50 is operated to turn on the second high lamp 55 (S42). At this time, if the second high temperature lamp 55 is in the ON state, it is maintained in the ON state.

As described above, according to the apparatus for controlling a high-temperature lamp of a refrigerator according to the embodiment of the present invention, it is possible to control the operation of the door by controlling the state of the door switch for detecting the opening / It is possible to determine the opening / closing state of the middle door so that the lamp in the intermediate storage room can be turned on and off.

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: proximity switch
30: control unit 40: first ramp-
42: first door 44: first storage room
45: first high intensity lamp 50: second lamp driving unit
52: second door 54: second storage room
55: Second high intensity lamp

Claims (5)

A door switch for detecting an open / closed state of the first door;
A proximity switch installed on the second door to sense proximity to the first door;
A second lamp driver for turning on a second high lamp in the second storage room in which the second door is installed; And
And a control unit for determining whether the second door is opened or closed according to the state of the door switch and the proximity switch to operate the second lamp driving unit.
The refrigerator of claim 1, further comprising a first lamp driving unit for turning on a first lamp of a first storage room provided with the first door, wherein the controller operates the first lamp driving unit according to the state of the door switch Wherein the control unit is configured to control the operation of the refrigerator.
The apparatus as claimed in claim 1, wherein the proximity switch is a magnetic switch installed to face the upper and lower surfaces of the first door and the second door.
The apparatus of claim 1, wherein the controller operates the second lamp driving unit when the first door is opened.
The apparatus of claim 1, wherein the controller determines that the second door is closed when the first door is closed, determines that the second door is opened when the proximity switch is in an off state, Wherein the control unit is operable to control the operation of the refrigerator.

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