KR20130112624A - Lighting device for refrigerator - Google Patents

Lighting device for refrigerator Download PDF

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Publication number
KR20130112624A
KR20130112624A KR1020120035152A KR20120035152A KR20130112624A KR 20130112624 A KR20130112624 A KR 20130112624A KR 1020120035152 A KR1020120035152 A KR 1020120035152A KR 20120035152 A KR20120035152 A KR 20120035152A KR 20130112624 A KR20130112624 A KR 20130112624A
Authority
KR
South Korea
Prior art keywords
light
guide plate
light emitting
emitting diode
light guide
Prior art date
Application number
KR1020120035152A
Other languages
Korean (ko)
Inventor
김명석
Original Assignee
동부대우전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 동부대우전자 주식회사 filed Critical 동부대우전자 주식회사
Priority to KR1020120035152A priority Critical patent/KR20130112624A/en
Publication of KR20130112624A publication Critical patent/KR20130112624A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • F21V1/14—Covers for frames; Frameless shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/003—Fastening of light source holders, e.g. of circuit boards or substrates holding light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
    • F25D2400/18—Aesthetic features

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Planar Illumination Modules (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)

Abstract

PURPOSE: A lighting device for a refrigerator is provided to uniformly transfer light emitted from light emitting diodes to a light guide plate through multiple light scattering parts. CONSTITUTION: A lighting device for a refrigerator comprises light emitting diodes (200) and a light guide plate (300). The light emitting diodes are installed on the rear wall surface of a refrigerator body and include printed circuit boards for controlling lighting. The light guide plate is installed in the front of the light emitting diodes, and light emitted from the light emitting diodes penetrates the light guide plate. Multiple light scattering parts (310) are formed on the light guide plate and uniformly scatter the light emitted from the light emitting diodes.

Description

[0001] LIGHTING DEVICE FOR REFRIGERATOR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lighting device for a refrigerator, and more particularly to a lighting device for a refrigerator that can transmit visibility to a refrigerator storage room and aesthetic satisfaction to a consumer.

Generally, a refrigerator is a device that keeps the food in a fresh state for a predetermined period by reducing the temperature of the refrigerating chamber and the freezing chamber as the refrigerant repeats a refrigerating cycle in which the refrigerant compresses - condenses - expands - evaporates.

The refrigerator includes a refrigerator body having a freezer compartment and a refrigerating compartment so that food can be stored in a low temperature state, and a refrigerator door that rotatably rotates the front surface of the refrigerator body.

The refrigerator is installed in the storage room with an illuminating device for illuminating the interior space of the storage room when the user opens the door installed on the front of the user for storing the product. Recently, the illuminator has a long lifetime and is efficient in durability and power consumption. That is, a lighting device using a light emitting diode (LED) is mainly installed.

Hereinafter, a lighting apparatus for a refrigerator according to the prior art will be described with reference to FIG.

As shown in the drawings, the lighting apparatus for a refrigerator according to the related art includes a light emitting diode 20 installed inside the rear wall of the refrigerator body 10, and a rear wall covering the rear wall of the refrigerator body 10, And a light guide plate 30 for transmitting the light emitted from the light emitting diode 20 to illuminate the inside of the storage chamber.

However, in the case of the lighting device for a refrigerator according to the related art, only the visibility of the article located in the storage room is discriminable so that the user can not deliver emotional points.

Also, the brightness of the light emitted from the light emitting diode 20 is not uniformly transmitted to the entire light guide plate 30, and the intensity of light is intensively increased only in the vicinity of the light emitting diode 20.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lighting device for a refrigerator which can transmit visibility to a refrigerator storage room and aesthetic satisfaction to a consumer.

It is another object of the present invention to provide a lighting device for a refrigerator that allows light emitted from a light emitting diode to be uniformly transmitted to the entire light guide plate without being biased on the light guide plate.

In order to achieve the above object, a lighting apparatus for a refrigerator according to the present invention includes:

A LED mounted on a rear wall of the refrigerator body for emitting light and a printed circuit board for controlling lighting of the LED;

And a light guide plate disposed in front of the light emitting diode and transmitting light therethrough,

The light guide plate is formed with a plurality of scattering parts for allowing light emitted from the light emitting diode to be radiated uniformly throughout the light guide plate and scattering incident light in a pattern of a regular pattern.

Particularly, the scattering portions are spaced apart at regular intervals or irregular intervals.

Further, the scattering portion is formed in a cylindrical shape which is recessed at a predetermined depth from the back surface of the light guide plate toward the front surface.

In addition, the scattering portion has a structure in which the width gradually decreases from the back surface toward the front surface.

Further, the scattering portion is characterized in that the recessed depth decreases as the distance from the light emitting diode increases.

In addition, the scattering portion is characterized in that the distance between the scattering portions also increases as the distance from the light emitting diode increases.

The light guide plate may further include a cover member that receives the light emitting diode and the light guide plate and fixes the light guide plate stably.

And an insulating member disposed behind the cover member to prevent heat generated from the light emitting diode from being transmitted to the cool air passage.

According to the present invention, the light guide plate is provided with a plurality of scattering parts for scattering the incident light in a pattern of a regular pattern so that the light emitted from the light emitting diode can be uniformly illuminated on the entire light guide plate, It is possible to prevent intensification of intensity of light with respect to the light guide plate at a position where the light emitting diode is close to the light guide plate and also to make the light guide plate uniformly illuminate the entire light guide plate by the scattering effect, .

1 is a front view showing a lighting device for a refrigerator according to the related art.
2 is a front view illustrating a lighting apparatus for a refrigerator according to an embodiment of the present invention.
FIG. 3 is a front view showing the light guide plate of FIG. 2 and a side sectional view of the scattering portion formed on the light guide plate.
4 is a perspective view of a lighting device for a refrigerator according to an embodiment of the present invention, in which a cover member and an insulating member are additionally provided.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to FIGS. 2 to 4 attached hereto.

As shown in the drawing, the lighting apparatus for a refrigerator according to the present invention includes an LED 210 installed on a rear wall of a refrigerator body 100 to emit light, a printed circuit board 220 for controlling lighting of the LED 210, And a light guiding plate 300 disposed in front of the light emitting diode 200 and transmitting light therethrough.

The light emitting diode 200 is installed in the storage room of the refrigerator main body 100 and is illuminated when the refrigerator door 110 that opens and closes the refrigerator main body 100 is opened to allow the user to store the product stored in the storage room So that it can be grasped easily.

That is, when the refrigerator door 110 is closed, the light emitting diode 200 is turned off and the refrigerator door 110 is kept open.

The light emitting diode 200 includes a LED 210 installed on the rear wall of the refrigerator body 100 to emit light and a printed circuit board 220 controlling the lighting of the LED 210 4).

The light guide plate 300 is installed in front of the light emitting diode 200 to transmit the light emitted from the light emitting diode 100 forward.

Particularly, the light guide plate 300 is provided with a plurality of light guide plates 300 for illuminating the light emitted from the light emitting diodes 200 with uniform brightness throughout the light guide plate 300 and scattering the incident light in a pattern of a certain pattern A scattering portion 310 is formed.

That is, the scattering unit 310 guides the light radiated from the light emitting diode 200 to the inside and scatters the incident light, thereby allowing the light emitting diode 200 to be positioned at a position close to the light guide plate 300 The intensity of light for the light guide plate 300 can be prevented from being intensively increased. In addition, the light guide plate 300 having a distance from the light emitting diode 200 can uniformly illuminate the entire light guide plate 300 by the scattering effect.

Here, the pattern shape of the scattering unit 310 is shown as a linear pattern formed at regular intervals with respect to the horizontal direction and the vertical direction. However, the pattern is not necessarily limited to this and may be arranged at irregular intervals, .

The scattering unit 310 may be formed in a cylindrical shape that is recessed at a predetermined depth from the back surface of the light guide plate 300 toward the front surface.

In addition, the scattering portion 310 may be formed in a structure in which the width gradually decreases from the back surface toward the front surface.

This is to allow the light emitted from the light emitting diode 200 to be incident on the scattering unit 310 easily.

In addition, the scattering unit 310 may reduce the depth of depression as the distance from the light emitting diode 200 increases and the separation distance between the scattering units 310 may be distanced so that the light may be incident smoothly even if the intensity of light is reduced. do.

Meanwhile, as shown in FIG. 4, a cover member 400 that receives the light emitting diode 200 and the light guide plate 300 inward and stably fixes the light emitting diode 200 and the light guide plate 300 may be additionally constructed.

The light emitting diode 200 may further include an insulation member 500 disposed behind the cover member 400 to block heat generated from the light emitting diode 200 from being transmitted to the cool air passage.

As described above, according to the present invention, the light emitted from the light emitting diode 200 can be irradiated to the light guide plate 300 with uniform brightness throughout the light guide plate 300, and the incident light can be illuminated with a pattern It is possible to prevent intensified intensity of light on the light guide plate at a position where the light emitting diode 200 is close to the light emitting diode 200, The light guide plate 300 having the light guide plate 300 has an effect of uniformly irradiating light to the entire light guide plate by the scattering effect.

100: refrigerator body
200: light emitting diode
210: LED
220: printed circuit board
300: light guide plate
310: spawning part
400: cover member
500: Insulation member

Claims (8)

A LED mounted on a rear wall of the refrigerator body for emitting light and a printed circuit board for controlling lighting of the LED;
And a light guide plate disposed in front of the light emitting diode and transmitting light therethrough,
Wherein the light guide plate is provided with a plurality of scattering parts for scattering the incident light in a pattern of a predetermined pattern so that the light emitted from the light emitting diode can be radiated uniformly over the light guide plate, Device.
The method according to claim 1,
Wherein the scattering parts are spaced apart at regular intervals or irregular intervals.
3. The method of claim 2,
Wherein the scattering portion has a cylindrical shape which is recessed at a predetermined depth from the back surface of the light guide plate toward the front surface.
The method of claim 3,
Wherein the scattering portion has a structure in which the width gradually decreases from the back surface toward the front surface.
5. The method of claim 4,
Wherein the scattered portion is reduced in depth as being distant from the light emitting diode.
6. The method of claim 5,
Wherein the scattering part is spaced apart from the light emitting diode as the distance between the scattering parts increases.
7. The method according to any one of claims 1 to 6,
Further comprising: a cover member that receives the light emitting diode and the light guide plate inward and stably fixes the light emitting diode and the light guide plate.
8. The method of claim 7,
Further comprising: an insulating member installed at a rear side of the cover member to prevent heat generated from the light emitting diode from being transmitted to the cold air passage.
KR1020120035152A 2012-04-04 2012-04-04 Lighting device for refrigerator KR20130112624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120035152A KR20130112624A (en) 2012-04-04 2012-04-04 Lighting device for refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120035152A KR20130112624A (en) 2012-04-04 2012-04-04 Lighting device for refrigerator

Publications (1)

Publication Number Publication Date
KR20130112624A true KR20130112624A (en) 2013-10-14

Family

ID=49633593

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120035152A KR20130112624A (en) 2012-04-04 2012-04-04 Lighting device for refrigerator

Country Status (1)

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KR (1) KR20130112624A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730880A4 (en) * 2017-12-23 2021-01-27 Qingdao Haier Co., Ltd. Plane light source assembly and refrigerator provided therewith
WO2022073594A1 (en) * 2020-10-07 2022-04-14 Electrolux Appliances Aktiebolag Refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3730880A4 (en) * 2017-12-23 2021-01-27 Qingdao Haier Co., Ltd. Plane light source assembly and refrigerator provided therewith
WO2022073594A1 (en) * 2020-10-07 2022-04-14 Electrolux Appliances Aktiebolag Refrigerator

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