WO2014194650A1 - Illumination device for refrigerator, and refrigerator - Google Patents

Illumination device for refrigerator, and refrigerator Download PDF

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Publication number
WO2014194650A1
WO2014194650A1 PCT/CN2013/090143 CN2013090143W WO2014194650A1 WO 2014194650 A1 WO2014194650 A1 WO 2014194650A1 CN 2013090143 W CN2013090143 W CN 2013090143W WO 2014194650 A1 WO2014194650 A1 WO 2014194650A1
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WO
WIPO (PCT)
Prior art keywords
light
guide plate
light guide
lighting device
disposed
Prior art date
Application number
PCT/CN2013/090143
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French (fr)
Chinese (zh)
Inventor
李春阳
王铭
刘明勇
苗建林
Original Assignee
青岛海尔特种电冰箱有限公司
海尔集团公司
青岛海尔股份有限公司
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Application filed by 青岛海尔特种电冰箱有限公司, 海尔集团公司, 青岛海尔股份有限公司 filed Critical 青岛海尔特种电冰箱有限公司
Publication of WO2014194650A1 publication Critical patent/WO2014194650A1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00Lighting arrangements

Definitions

  • the invention relates to lighting technology, in particular to a refrigerator lighting device and a refrigerator.
  • LED Light Emitting Diode
  • LED has high luminous efficiency and long service life, and is widely used in various lighting devices.
  • LED since LED is a point light source, it has certain limitations in large-area illumination.
  • the combined illumination of a large-area illumination device has poor uniformity of illumination; if the number of LEDs is increased, the number of LEDs is increased.
  • the density of the arrangement is increased to increase the uniformity, and the corresponding cost is also increased.
  • the illumination device with the LED as the light source can be applied to the backlight of the refrigerator.
  • the acrylic plate is generally used as the light guide plate.
  • the front and the back of the light guide plate are respectively provided with a scattering plate and a reflection plate, and the light guide plate and the reflection plate are respectively disposed.
  • a plurality of LEDs a part of the light emitted by the LED directly enters the light guide plate from the back side of the light guide plate, is refracted by the light guide plate, is emitted from the front surface of the light guide plate, and the other portion is reflected by the reflection plate and then incident on the light guide plate, and the scattering plate is opposite to the light guide plate.
  • the light emitted from the light guide plate is scattered to improve the uniformity of the emitted light.
  • a diffuser, a light guide plate, a reflector, and an LED are enclosed by a lampshade for improving the softness of the emitted light and having the effect of protecting each device.
  • the prior art adopts a multi-layer board structure composed of a light guide plate, a reflection plate and a diffusion plate, and a surrounding lamp cover, the size of the illumination device is large, and the illumination device is disposed in the refrigerator. Taking up a large space, the available space in the refrigerator is greatly reduced.
  • the invention provides a refrigerator lighting device and a refrigerator, which are used for solving the problem that the existing lighting device is bulky, and reducing the space occupied by the lighting device in the refrigerator.
  • An embodiment of the present invention provides a refrigerator lighting device including a first light guide plate and a second light guide plate, and a scattering film is disposed between the first light guide plate and the second light guide plate, and the first guide a first LED light bar is disposed on at least one side of the light panel, and the light emitted by the first LED light bar is incident on the first light guide plate;
  • Reflective dots are disposed on a surface of the first light guide plate remote from the scattering film.
  • the refrigerator lighting device as described above further comprising a second LED light bar, wherein the second LED light bar is disposed on at least one side of the second light guide plate, and the light emitted by the second LED light bar Incident into the second light guide plate.
  • an engraved pattern or a printed pattern is provided on a surface of the second light guide plate adjacent to the scattering film.
  • a distribution density of the first light-emitting diode strips adjacent to the first light-emitting diode strips is smaller than a distribution density of the first light-emitting diode strips;
  • the reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
  • a reflective film is further provided on a surface of the first light guide plate on which the reflective mesh dots are disposed.
  • the reflective mesh point is a bump or a pit.
  • the engraving pattern or the printing pattern is identification information or prompt information.
  • the first light guide plate and the second light guide plate are made of an acrylic plate.
  • the refrigerator lighting device as described above, further comprising a U-shaped frame, the attached first light guide plate and the second light guide plate, and the first light-emitting diode light bar and the second light-emitting diode light bar being assembled on the U In the U-shaped groove of the frame, the first LED light strip is disposed between the bottom of the U-shaped groove and the first light guide plate, and the second LED light bar is disposed at the bottom of the U-shaped groove Between the second light guide plate.
  • the embodiment of the present invention further provides a refrigerator lighting device, including a first light guide plate and a light cover having a scattering function, wherein at least one side of the first light guide plate is provided with a first light emitting diode light bar, and the first light emitting diode Light emitted by the light bar is incident into the first light guide plate;
  • the lampshade is disposed outside the first light guide plate and the first light emitting diode light bar;
  • Reflective dots are disposed on a surface of the first light guide plate remote from the lamp cover.
  • a distribution density of the first light-emitting diode strips adjacent to the first light-emitting diode strips is smaller than a distribution density of the first light-emitting diode strips;
  • the reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
  • the refrigerator lighting device as described above further comprising a U-shaped frame, the first light guide plate and the first light-emitting diode light strip being assembled in a U-shaped groove of the U-shaped frame, the first light-emitting diode
  • the light bar is disposed between the bottom of the U-shaped groove and the first light guide plate, and the U-shaped frame is disposed inside the light cover or matched with the light cover.
  • An embodiment of the present invention provides a refrigerator, which adopts the refrigerator lighting device as described above;
  • the refrigerator lighting device is disposed on a backboard of the refrigerator.
  • An embodiment of the present invention provides a refrigerator lighting device, by using a laminated first light guide plate and a second light guide plate, a scattering film is disposed between the first light guide plate and the second light guide plate, at least one of the first light guide plates a first LED light bar is disposed on the side, the light emitted by the first LED light bar is incident on the first light guide plate, and a reflective mesh point is disposed on the surface of the first light guide plate away from the scattering film, which can solve the existing The problem that the lighting device takes up a large space reduces the occupation of the internal space of the refrigerator by reducing the volume of the lighting device of the refrigerator.
  • FIG. 1 is a schematic structural view of a refrigerator lighting device according to Embodiment 1 of the present invention.
  • FIG. 2 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 1 of the present invention.
  • FIG. 3 is a perspective view of a refrigerator lighting device according to Embodiment 1 of the present invention.
  • FIG. 4 is a schematic diagram showing a distribution structure of reflective net dots in a refrigerator lighting device according to Embodiment 1 of the present invention.
  • FIG. 5 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention.
  • FIG. 6 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention.
  • FIG. 1 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 1 of the present invention.
  • the refrigerator lighting device may include a first light guide plate 1 and a second light guide plate 2, and a scattering film 3 is disposed between the first light guide plate 1 and the second light guide plate 2, and the first light guide plate is disposed.
  • the first light-emitting diode strip 4 is disposed on at least one side of the first light-emitting diode strip 4, and the light emitted by the first light-emitting diode strip 4 is incident on the first light guide plate 1.
  • a reflective mesh dot 5 is disposed on a surface of the first light guiding plate 1 remote from the scattering film 3. From the perspective of FIG. 1, the first light guide plate 1, the scattering film 3, and the second light guide plate 2 are sequentially arranged from bottom to top, and the lower surface of the first light guide plate 1 is provided with a reflective mesh dot 5.
  • the first light guide plate 1 and the second light guide plate 2 may be transparent plates with good light guiding properties, such as an optical grade acrylic plate or a polycarbonate plate. In this embodiment, a transparent acrylic plate is preferably used.
  • the surface area of the two light guide plates can be set according to the volume of the refrigerator.
  • the thickness of the light guide plate can be specifically set according to the distribution density of the reflective mesh points 5, and the thickness of the light guide plate is minimized under the premise of satisfying the uniform distribution of the light. The occupation of the internal space of the refrigerator is reduced.
  • the thickness of the first light guide plate 1 may be between (2-3) mm
  • the thickness of the second light guide plate 2 may be between (1.5-3) mm.
  • the light emitted by the first LED strip 4 enters the first light guide plate 1 at different incident angles, and some of the light is refracted by the first light guide plate 1 and directly emitted from the surface adjacent to the scattering film 3 to reach the scattering film 3, and another portion of the light After being reflected by the reflective mesh point 5, the first light guide plate 1 is again entered, and then the first light guide plate 1 is emitted to reach the scattering film 3.
  • the scattering film 3 is capable of scattering the light emitted from the first light guide plate 1 so that the light is diverged in various directions for improving the uniformity of the light.
  • the second light guide plate 2 absorbs the light emitted from the scattering film 3, further diffuses the direction in which the light is emitted, and functions as a protective layer for the scattering film.
  • the thickness of the scattering film 3 may be (1-2) mm, preferably 1.5 mm.
  • the printing process of the reflective dot 5 can be printed on the surface of the first light guiding plate 1 away from the scattering film 3 by using a material having a very high reflectivity and not absorbing light, which is commonly used by those skilled in the art, to obtain a reflective dot 5, which is Bump.
  • the groove may be engraved on the surface of the first light guide plate 1 away from the scattering film 3, and then the material having extremely high reflectivity and no light absorption is filled into the groove mark to form the reflective mesh point 5, and the reflection is performed.
  • Dot 5 can be considered a pit.
  • the reflective dot 5 can also be printed using other methods well known to those skilled in the art.
  • the method of printing the reflective mesh point 5 is adopted, that is, the reflective mesh dot 5 protrudes from the surface of the first light guide plate 1.
  • the outgoing light of each reflective mesh point 5 is emitted to multiple angles.
  • the reflective mesh point 5 can reflect the light emitted from the first light guide plate 1 and enter the first light guide plate 1, thereby improving the light utilization efficiency.
  • the first LED light bar 4 may include a plurality of light emitting diodes arranged in a strip shape, which may be one or more, and the length is matched with the first light guide plate 1.
  • the power input of the first LED light bar 4 is input from the refrigerator.
  • the control panel provides that it can be illuminated when the refrigerator door is opened, and stops when the refrigerator door is closed to save power and energy.
  • the first LED strips 4 may be disposed on one side of the first light guide plate 1 , or may be disposed on opposite sides of the first light guide plate 1 or on the four sides of the first light guide plate 1 , specifically Set according to the desired brightness.
  • the first light-emitting diode strip 4 is disposed on one side of the first light guide plate 1 as an example to specifically describe the working principle of the refrigerator lighting device: the light emitted by the first LED strip 4 enters the first angle at different incident angles.
  • a light guide plate 1 is defined by a light incident perpendicularly, and a portion of the light having an incident point at the upper portion of the boundary is refracted by the first light guide plate 1 and directly emitted from the surface adjacent to the scattering film 3 to reach the scattering film 3, and the incident point is at a lower limit. Another portion of the light is reflected by the reflective mesh point 5, enters the first light guide plate 1 again, and then exits the first light guide plate 1 to reach the scattering film 3.
  • the scattering film 3 scatters the light emitted from the first light guide plate 1 so that the light is further diverged in various directions and then incident on the second light guide plate 2.
  • the second light guide plate 2 diverges the light emitted from the scattering film 3 again.
  • the technical solution of the embodiment provides a first film and a second light guide plate, and a scattering film is disposed between the first light guide plate and the second light guide plate, and the first light guide plate is disposed on at least one side of the first light guide plate.
  • the LED light bar, and the surface of the first light guide plate disposed away from the scattering film is provided with a reflective mesh point, which can solve the problem that the existing lighting device occupies a large space, and reduces the volume of the refrigerator lighting device by reducing the volume of the refrigerator lighting device. The occupation of the internal space of the refrigerator.
  • the surface of the second light guide plate 2 adjacent to the scattering film 3 may be provided with an engraved pattern or a printed pattern.
  • a groove or a plurality of pits may be engraved on the second light guide plate 2 when the scattering film is used. 3
  • the emitted light is reflected or refracted on the groove or the pit, and the direction of propagation of the light changes, so that the brightness of the portion of the light that exits the second light guide plate 2 is different from other regions without the engraved pattern, so the engraving can be performed.
  • the pattern is highlighted.
  • a pattern may be printed on the second light guide plate 2, and the printed pattern may be printed on the second light guide plate 2 with a light blocking material.
  • the engraving pattern or the printing pattern may be identification information or prompt information, and may specifically be text or an artistically effective picture composed of lines. If it is text, it can be used to identify some basic parameters of the refrigerator, such as model, capacity, rated voltage, rated power or other parameters, or some tips, such as the use of refrigerators, etc., can improve the traditional
  • the basic parameters of the refrigerator are attached to the outer surface to affect the aesthetics. If it is an artistically effective picture, it can enhance the artistic effect of the lighting device and improve the comfort of the refrigerator.
  • the refrigerator lighting device may further include a second LED strip 6 , and the second LED strip 6 is disposed on at least one side of the second light guide 2 .
  • the light emitted from the second LED strip 6 is incident on the second light guide plate 2 for improving the brightness. That is, the second LED strips 6 may be disposed on the four sides of the second light guide plate 2, or may be disposed on opposite sides, or may be disposed on only one side.
  • the first LED strip 4 and the second LED strip 6 are disposed on the same side, and the two strips are arranged in two rows according to actual needs, and are disposed on a printed circuit board (Printed Circuit Board, referred to as PCB).
  • PCB printed Circuit Board
  • the arrangement manner of the first LED strip 4 and the second LED strip 6 can be specifically set according to the size of the two light guide plates. If the size of the light guide plate is large, a plurality of light strips can be disposed to improve the brightness. And uniformity.
  • the second light guide plate 2 is provided with a printed pattern
  • the second light-emitting diode light strip 6 may not be disposed, and only the first light-emitting diode light strip 4 is used, and the brightness thereof is sufficient for the illumination.
  • the need for, and can display a printed pattern if the second light guide plate 2 is provided with an engraving pattern, a second LED light bar 6 can be provided for enhancing the brightness of the light to better meet the needs of illumination, and Highlight the engraving pattern.
  • the illuminating device may further include a U-shaped frame 8 for assembling the first light guide plate 1 and the second light guide plate 2 in the U-shaped groove of the U-shaped frame 8 for fixing the two light guide plates on the one hand, and on the other hand,
  • the first LED light bar 4 and/or the second LED light bar 6 can also be assembled in a U-shaped groove, and the first LED light bar 4 is disposed between the bottom of the U-shaped groove and the first light guide plate 1
  • the two LED strips 6 are disposed between the bottom of the U-shaped groove and the second light guide plate 2.
  • the first LED strip 4 and the second LED strip 6 may be fixed on one PCB, or may be respectively fixed on two PCBs, and fixedly disposed in the U-shaped slot by sticking, clamping or bolting.
  • the light bar emits light toward the corresponding light guide plate.
  • the U-shaped frame 8 can be disposed on at least one side of the light guide plate, and specifically can be matched with the light-emitting diode light strip to fix the LED light strip and the light guide plate.
  • the U-shaped groove can be fixedly mounted on the back plate of the refrigerator by bolt connection.
  • the distribution density of the first light-emitting diode strips 4 adjacent to the first light-emitting diode strips 4 is smaller than the distribution density away from the first light-emitting diode strips 4, and/or the reflection of the first LED strips 4
  • the intensity is less than the intensity of the reflection away from the first light-emitting diode strip 4.
  • FIG. 4 is a schematic diagram showing a distribution of reflective mesh points in a refrigerator lighting device according to Embodiment 1 of the present invention, which is a top view of FIG. 1, and a first LED light bar 4 is disposed from the left side of the first light guide plate 1.
  • the distribution density of the reflective mesh dots 5 adjacent to the first LED strip 4 is small, and the distribution density of the reflective mesh dots 5 away from the first LED strip 4 is large.
  • the reflection intensity on the left side of the reflective mesh point 5 may be smaller than the reflection intensity on the right side, and the area of the reflective mesh point 5 on the left side may be smaller, and the area of the reflective mesh point 5 on the right side is larger, and different reflections may be selected.
  • the strength of the material is made into the reflective mesh point 5, or by adjusting the bump height or the pit depth of the reflective mesh point 5.
  • the light emitted by the first LED strip 4 enters the first light guide plate 1, energy loss occurs during the propagation of the first light guide plate 1, that is, the light energy adjacent to the first LED strip 4 Stronger, the light energy away from the first LED strip 4 is weak. In the region where the light energy is strong, the distribution density and/or the reflection intensity of the reflective mesh point 5 is smaller than the region where the light energy is weak, so that the light reaching the human eye is uniform.
  • the distribution of the reflective mesh points 5 may be set to a misalignment distribution, a group distribution, a ring distribution, a fan distribution or other distribution methods commonly used in the prior art, and the shape of the reflective mesh dots 5 may be set to a circle, a polygon, and other shapes, specifically It is set by the person skilled in the art, which is not limited in this embodiment.
  • a reflective film 7 is further provided on the surface of the first light guide plate 1 on which the reflective mesh dots 5 are provided to enhance the reflective performance.
  • the reflective film 7 may have a thickness of (0.1-0.2) mm.
  • the reflective film 7 can be applied to the surface of the first light guide plate 1 by using a reflective film commonly used in the prior art, and the reflective mesh dot 5 is coated between the reflective film 7 and the first light guide plate 1 for illumination.
  • the device provides a clean background and enhances the reflection of light, further reducing light loss and improving light utilization.
  • the reflective film 7 can also protect the reflective mesh point 5, reduce wear and prolong the service life of the lighting device.
  • the thickness of the refrigerator lighting device does not exceed 8 mm, which greatly reduces the interior of the refrigerator. The occupation of space.
  • FIG. 5 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention
  • FIG. 6 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention.
  • the refrigerator lighting device includes a first light guide plate 1 and a light cover 9 having a scattering function, and the first light guide plate 1 is provided with a first light emission on at least one side surface thereof.
  • the diode light bar 4, the light emitted by the first light-emitting diode light bar 4 is incident on the first light guide plate 1.
  • the lampshade 9 may be made of a material having a scattering function, or may be coated with a scattering material on the surface of the lampshade 9 adjacent to the first light guiding plate 1, so that the light emitted from the first light guiding plate 1 can be scattered.
  • the lamp cover 9 is disposed outside the first light guide plate 1 and the first LED strip 4 to protect the first light guide plate 1 and the first LED strip 4 . Further, a reflective mesh dot 5 is provided on the surface of the first light guiding plate 1 remote from the lamp cover 9.
  • the U-shaped frame 8 may be disposed inside the lamp cover 9, or may be matched with the lamp cover 9, and the first light guide plate 1 and the first light-emitting diode light bar 4 are enclosed inside to reduce the volume of the refrigerator lighting device.
  • the above technical solution adopts a lamp cover with a scattering function instead of the second light guide plate and the scattering film of the above embodiment, and the illumination device is arranged as a whole.
  • the refrigerator illumination can be further reduced. The size of the device, and the ability to protect the various devices inside the lighting device, and easier to handle and install.
  • the embodiment of the present invention further provides a refrigerator, which can adopt the refrigerator lighting device used in the above embodiment, the refrigerator lighting device is disposed on the backboard of the refrigerator, and the power source of each light-emitting diode light bar in the lighting device can be provided by the refrigerator.
  • the control panel comes with it.
  • the use of the above-described refrigerator lighting device can reduce the occupation of the internal space of the refrigerator and can improve the aesthetics of the interior of the refrigerator.

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

Abstract

Disclosed are an illumination device for a refrigerator, and a refrigerator. The illumination device for a refrigerator comprises a first light guide plate (1) and a second light guide plate (2) which are laminated on each other, with a scattering film (3) being arranged therebetween, wherein at least one side of the first light guide plate (1) is provided with a first light-emitting diode light strip (4), and the light emitted by the first light-emitting diode light strip (4) is incident to the first light guide plate (1). The surface of the light guide plate (1) away from the scattering film (3) is provided with a reflecting dot (5). The illumination device for a refrigerator has a small volume and occupies less space in the refrigerator.

Description

冰箱照明装置以及冰箱  Refrigerator lighting and refrigerator
本申请要求了申请日为2013年06月03日,申请号为201310216504.2,发明名称为“冰箱照明装置以及冰箱”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。Priority is claimed on Japanese Patent Application No. 20131021650, the entire disclosure of which is incorporated herein by reference.
【技术领域】[Technical Field]
本发明涉及照明技术,尤其涉及一种冰箱照明装置以及冰箱。 The invention relates to lighting technology, in particular to a refrigerator lighting device and a refrigerator.
【背景技术】 【Background technique】
发光二级管(Light Emitting Diode,简称LED)具有较高的发光效率和较长的使用寿命,在各种照明装置中的应用越来越广泛。但由于LED属于点光源,在大面积照明方面具有一定的局限性,在LED的数量一定的情况下,组合成的大面积照明装置其光照的均匀度较差;若增加LED的数量,提高LED排布的密度以提高均匀度,则相应的成本也提高了。Light Emitting Diode (LED) has high luminous efficiency and long service life, and is widely used in various lighting devices. However, since LED is a point light source, it has certain limitations in large-area illumination. In the case of a certain number of LEDs, the combined illumination of a large-area illumination device has poor uniformity of illumination; if the number of LEDs is increased, the number of LEDs is increased. The density of the arrangement is increased to increase the uniformity, and the corresponding cost is also increased.
上述由LED作为光源的照明装置可以应用到冰箱的背板照明中,其通常采用亚克力板作为导光板,导光板的正面和背面分别设置有散射板和反射板,导光板与反射板之间设置多个LED,LED发出的光线中一部分直接从导光板的背面射入导光板,经导光板折射后,从导光板的正面射出,另一部分经反射板反射后射入导光板,散射板对从导光板出射的光线进行散射,以提高出射光线的均匀度。另外,还采用灯罩将散射板、导光板、反射板以及LED围设起来,用于提高出射光线的柔和度,并且具备保护各器件的效果。The illumination device with the LED as the light source can be applied to the backlight of the refrigerator. The acrylic plate is generally used as the light guide plate. The front and the back of the light guide plate are respectively provided with a scattering plate and a reflection plate, and the light guide plate and the reflection plate are respectively disposed. A plurality of LEDs, a part of the light emitted by the LED directly enters the light guide plate from the back side of the light guide plate, is refracted by the light guide plate, is emitted from the front surface of the light guide plate, and the other portion is reflected by the reflection plate and then incident on the light guide plate, and the scattering plate is opposite to the light guide plate. The light emitted from the light guide plate is scattered to improve the uniformity of the emitted light. In addition, a diffuser, a light guide plate, a reflector, and an LED are enclosed by a lampshade for improving the softness of the emitted light and having the effect of protecting each device.
由于现有技术中采用了由导光板、反射板及散射板构成的多层板结构,再加上围设的灯罩,使得照明装置的体积较大,将该照明装置设置在冰箱内,则会占用较大的空间,使得冰箱内的可用空间大大减小。Since the prior art adopts a multi-layer board structure composed of a light guide plate, a reflection plate and a diffusion plate, and a surrounding lamp cover, the size of the illumination device is large, and the illumination device is disposed in the refrigerator. Taking up a large space, the available space in the refrigerator is greatly reduced.
【发明内容】 [Summary of the Invention]
本发明提供一种冰箱照明装置以及冰箱,用于解决现有的照明装置体积较大的问题,减小照明装置在冰箱中占用的空间。The invention provides a refrigerator lighting device and a refrigerator, which are used for solving the problem that the existing lighting device is bulky, and reducing the space occupied by the lighting device in the refrigerator.
本发明实施例提供一种冰箱照明装置,包括贴合的第一导光板和第二导光板,所述第一导光板和所述第二导光板之间设置有散射膜,所述第一导光板的至少一个侧面上设置有第一发光二极管灯条,所述第一发光二极管灯条发出的光入射到所述第一导光板中;An embodiment of the present invention provides a refrigerator lighting device including a first light guide plate and a second light guide plate, and a scattering film is disposed between the first light guide plate and the second light guide plate, and the first guide a first LED light bar is disposed on at least one side of the light panel, and the light emitted by the first LED light bar is incident on the first light guide plate;
所述第一导光板中远离所述散射膜的表面上设置有反光网点。Reflective dots are disposed on a surface of the first light guide plate remote from the scattering film.
如上所述的冰箱照明装置,还包括第二发光二极管灯条,所述第二发光二极管灯条设置在所述第二导光板的至少一个侧面上,所述第二发光二极管灯条发出的光入射到所述第二导光板中。The refrigerator lighting device as described above, further comprising a second LED light bar, wherein the second LED light bar is disposed on at least one side of the second light guide plate, and the light emitted by the second LED light bar Incident into the second light guide plate.
如上所述的冰箱照明装置,所述第二导光板上临近所述散射膜的表面上设置有雕刻图案或印刷图案。In the refrigerator lighting device as described above, an engraved pattern or a printed pattern is provided on a surface of the second light guide plate adjacent to the scattering film.
如上所述的冰箱照明装置,所述反光网点中临近所述第一发光二级管灯条的分布密度小于远离所述第一发光二级管灯条的分布密度;和/或In the refrigerator lighting device as described above, a distribution density of the first light-emitting diode strips adjacent to the first light-emitting diode strips is smaller than a distribution density of the first light-emitting diode strips; and/or
所述反光网点中临近所述第一发光二级管灯条的反射强度小于远离所述第一发光二级管灯条的反射强度。The reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
如上所述的冰箱照明装置,所述第一导光板中设置有反光网点的表面上还设置有反射膜。In the refrigerator lighting device as described above, a reflective film is further provided on a surface of the first light guide plate on which the reflective mesh dots are disposed.
如上所述的冰箱照明装置,所述反光网点为凸点或凹点。In the refrigerator lighting device as described above, the reflective mesh point is a bump or a pit.
如上所述的冰箱照明装置,所述雕刻图案或印刷图案为标识信息或提示信息。In the refrigerator lighting device as described above, the engraving pattern or the printing pattern is identification information or prompt information.
如上所述的冰箱照明装置,所述第一导光板和第二导光板采用亚克力板。In the refrigerator lighting device as described above, the first light guide plate and the second light guide plate are made of an acrylic plate.
如上所述的冰箱照明装置,还包括U型框,所述贴合的第一导光板和第二导光板,以及第一发光二级管灯条和第二发光二极管灯条装配在所述U型框的U型槽中,所述第一发光二级管灯条设置在所述U型槽底部与第一导光板之间,所述第二发光二极管灯条设置在所述U型槽底部与第二导光板之间。The refrigerator lighting device as described above, further comprising a U-shaped frame, the attached first light guide plate and the second light guide plate, and the first light-emitting diode light bar and the second light-emitting diode light bar being assembled on the U In the U-shaped groove of the frame, the first LED light strip is disposed between the bottom of the U-shaped groove and the first light guide plate, and the second LED light bar is disposed at the bottom of the U-shaped groove Between the second light guide plate.
本发明实施例还提供一种冰箱照明装置,包括第一导光板和具有散射功能的灯罩,所述第一导光板的至少一个侧面上设置有第一发光二极管灯条,所述第一发光二极管灯条发出的光入射到所述第一导光板中;The embodiment of the present invention further provides a refrigerator lighting device, including a first light guide plate and a light cover having a scattering function, wherein at least one side of the first light guide plate is provided with a first light emitting diode light bar, and the first light emitting diode Light emitted by the light bar is incident into the first light guide plate;
所述灯罩围设在所述第一导光板以及第一发光二极管灯条外部;The lampshade is disposed outside the first light guide plate and the first light emitting diode light bar;
所述第一导光板中远离所述灯罩的表面上设置有反光网点。Reflective dots are disposed on a surface of the first light guide plate remote from the lamp cover.
如上所述的冰箱照明装置,所述反光网点中临近所述第一发光二级管灯条的分布密度小于远离所述第一发光二级管灯条的分布密度;和/或In the refrigerator lighting device as described above, a distribution density of the first light-emitting diode strips adjacent to the first light-emitting diode strips is smaller than a distribution density of the first light-emitting diode strips; and/or
所述反光网点中临近所述第一发光二级管灯条的反射强度小于远离所述第一发光二级管灯条的反射强度。The reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
如上所述的冰箱照明装置,还包括U型框,所述第一导光板和第一发光二级管灯条装配在所述U型框的U型槽中,所述第一发光二级管灯条设置在所述U型槽底部与第一导光板之间,所述U型框设置在所述灯罩内部或与所述灯罩匹配设置。The refrigerator lighting device as described above, further comprising a U-shaped frame, the first light guide plate and the first light-emitting diode light strip being assembled in a U-shaped groove of the U-shaped frame, the first light-emitting diode The light bar is disposed between the bottom of the U-shaped groove and the first light guide plate, and the U-shaped frame is disposed inside the light cover or matched with the light cover.
本发明实施例提供一种冰箱,采用如上所述的冰箱照明装置;An embodiment of the present invention provides a refrigerator, which adopts the refrigerator lighting device as described above;
所述冰箱照明装置设置在所述冰箱的背板上。The refrigerator lighting device is disposed on a backboard of the refrigerator.
本发明实施例提供了一种冰箱照明装置通过采用贴合的第一导光板和第二导光板,在第一导光板和第二导光板之间设置散射膜,在第一导光板的至少一个侧面上设置第一发光二极管灯条,第一发光二极管灯条发出的光入射到第一导光板中,且该第一导光板中远离散射膜的表面上设置有反光网点,能够解决现有的照明装置占用空间较大的问题,通过减小冰箱照明装置的体积,减小了对冰箱内部空间的占用。An embodiment of the present invention provides a refrigerator lighting device, by using a laminated first light guide plate and a second light guide plate, a scattering film is disposed between the first light guide plate and the second light guide plate, at least one of the first light guide plates a first LED light bar is disposed on the side, the light emitted by the first LED light bar is incident on the first light guide plate, and a reflective mesh point is disposed on the surface of the first light guide plate away from the scattering film, which can solve the existing The problem that the lighting device takes up a large space reduces the occupation of the internal space of the refrigerator by reducing the volume of the lighting device of the refrigerator.
【附图说明】 [Description of the Drawings]
图1为本发明实施例一提供的冰箱照明装置的结构示意图;1 is a schematic structural view of a refrigerator lighting device according to Embodiment 1 of the present invention;
图2为本发明实施例一提供的冰箱照明装置的另一结构示意图;2 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 1 of the present invention;
图3为本发明实施例一提供的冰箱照明装置的立体图;3 is a perspective view of a refrigerator lighting device according to Embodiment 1 of the present invention;
图4为本发明实施例一提供的冰箱照明装置中反光网点的分布结构示意图;4 is a schematic diagram showing a distribution structure of reflective net dots in a refrigerator lighting device according to Embodiment 1 of the present invention;
图5为本发明实施例二提供的冰箱照明装置的结构示意图;FIG. 5 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention; FIG.
图6为本发明实施例二提供的冰箱照明装置的另一结构示意图。FIG. 6 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention.
【具体实施方式】 【detailed description】
实施例1Example 1
图1为本发明实施例一提供的冰箱照明装置的结构示意图。如图1所示,该冰箱照明装置可以包括贴合的第一导光板1和第二导光板2,第一导光板1和第二导光板2之间设置有散射膜3,第一导光板1的至少一个侧面上设置有第一发光二极管灯条4,第一发光二极管灯条4发出的光入射到第一导光板1中。该第一导光板1中远离散射膜3的表面上设置有反光网点5。从图1的视角来看,从下至上依次为第一导光板1、散射膜3以及第二导光板2,第一导光板1的下表面设置有反光网点5。FIG. 1 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 1 of the present invention. As shown in FIG. 1, the refrigerator lighting device may include a first light guide plate 1 and a second light guide plate 2, and a scattering film 3 is disposed between the first light guide plate 1 and the second light guide plate 2, and the first light guide plate is disposed. The first light-emitting diode strip 4 is disposed on at least one side of the first light-emitting diode strip 4, and the light emitted by the first light-emitting diode strip 4 is incident on the first light guide plate 1. A reflective mesh dot 5 is disposed on a surface of the first light guiding plate 1 remote from the scattering film 3. From the perspective of FIG. 1, the first light guide plate 1, the scattering film 3, and the second light guide plate 2 are sequentially arranged from bottom to top, and the lower surface of the first light guide plate 1 is provided with a reflective mesh dot 5.
其中,第一导光板1和第二导光板2可采用导光性能较好的透明板,例如光学级的亚克力板或聚碳酸酯板,本实施例优选采用透明的亚克力板。两个导光板的表面积大小可根据冰箱的容积来设定,导光板的厚度可根据反光网点5的分布密度来具体设定,在满足光线均匀分布的前提下尽量减小导光板的厚度,以减小对冰箱内部空间的占用,例如,第一导光板1的厚度可以在(2-3)mm之间,第二导光板2的厚度可以在(1.5-3)mm之间。第一发光二极管灯条4发出的光线以不同的入射角进入第一导光板1,部分光线经第一导光板1折射后直接从邻近散射膜3的表面射出,到达散射膜3,另一部分光线经反光网点5反射后,再次进入第一导光板1,然后射出第一导光板1,到达散射膜3。散射膜3能够对从第一导光板1射出的光线进行散射,使得光线向各个方向发散,用于提高光线的均匀度。第二导光板2吸收从散射膜3射出的光线,进一步扩散光线发射的方向,且对散射膜能起到保护的作用。散射膜3的厚度可以为(1-2)mm,优选为1.5mm。The first light guide plate 1 and the second light guide plate 2 may be transparent plates with good light guiding properties, such as an optical grade acrylic plate or a polycarbonate plate. In this embodiment, a transparent acrylic plate is preferably used. The surface area of the two light guide plates can be set according to the volume of the refrigerator. The thickness of the light guide plate can be specifically set according to the distribution density of the reflective mesh points 5, and the thickness of the light guide plate is minimized under the premise of satisfying the uniform distribution of the light. The occupation of the internal space of the refrigerator is reduced. For example, the thickness of the first light guide plate 1 may be between (2-3) mm, and the thickness of the second light guide plate 2 may be between (1.5-3) mm. The light emitted by the first LED strip 4 enters the first light guide plate 1 at different incident angles, and some of the light is refracted by the first light guide plate 1 and directly emitted from the surface adjacent to the scattering film 3 to reach the scattering film 3, and another portion of the light After being reflected by the reflective mesh point 5, the first light guide plate 1 is again entered, and then the first light guide plate 1 is emitted to reach the scattering film 3. The scattering film 3 is capable of scattering the light emitted from the first light guide plate 1 so that the light is diverged in various directions for improving the uniformity of the light. The second light guide plate 2 absorbs the light emitted from the scattering film 3, further diffuses the direction in which the light is emitted, and functions as a protective layer for the scattering film. The thickness of the scattering film 3 may be (1-2) mm, preferably 1.5 mm.
反光网点5的印制过程可采用本领域技术人员常用的具有极高反射率且不吸光的材料在第一导光板1中远离散射膜3的表面进行印刷得到反光网点5,该反光网点5为凸点。或者也可以先在第一导光板1中远离散射膜3的表面上雕刻出沟痕,然后再将具有极高反射率且不吸光的材料填入沟痕中,形成反光网点5,则该反光网点5可视为凹点。当然,也可以采用本领域技术人员熟知的其它方法来印制反光网点5。本实施例选用印刷得到反光网点5的方式,即反光网点5凸出于第一导光板1的表面,当光线射到各个反光网点5时,各个反光网点5的出射光线会向多个角度发射。反光网点5能够将射出第一导光板1的光线反射再进入第一导光板1,可以提高光的利用效率。The printing process of the reflective dot 5 can be printed on the surface of the first light guiding plate 1 away from the scattering film 3 by using a material having a very high reflectivity and not absorbing light, which is commonly used by those skilled in the art, to obtain a reflective dot 5, which is Bump. Alternatively, the groove may be engraved on the surface of the first light guide plate 1 away from the scattering film 3, and then the material having extremely high reflectivity and no light absorption is filled into the groove mark to form the reflective mesh point 5, and the reflection is performed. Dot 5 can be considered a pit. Of course, the reflective dot 5 can also be printed using other methods well known to those skilled in the art. In this embodiment, the method of printing the reflective mesh point 5 is adopted, that is, the reflective mesh dot 5 protrudes from the surface of the first light guide plate 1. When the light hits each reflective mesh point 5, the outgoing light of each reflective mesh point 5 is emitted to multiple angles. . The reflective mesh point 5 can reflect the light emitted from the first light guide plate 1 and enter the first light guide plate 1, thereby improving the light utilization efficiency.
第一发光二极管灯条4可包括多个发光二级管排列成长条状,可以为一条或多条,长度与第一导光板1匹配设置,第一发光二极管灯条4的电源输入由冰箱的控制板提供,可以在冰箱门打开的时候发光,在冰箱门关闭的时候停止发光以节约电力能源。第一发光二极管灯条4可以设置第一导光板1的一个侧面,也可以设置在第一导光板1中相对的两个侧面,或者设置在第一导光板1的四个侧面上,具体可以根据所需的亮度设定。The first LED light bar 4 may include a plurality of light emitting diodes arranged in a strip shape, which may be one or more, and the length is matched with the first light guide plate 1. The power input of the first LED light bar 4 is input from the refrigerator. The control panel provides that it can be illuminated when the refrigerator door is opened, and stops when the refrigerator door is closed to save power and energy. The first LED strips 4 may be disposed on one side of the first light guide plate 1 , or may be disposed on opposite sides of the first light guide plate 1 or on the four sides of the first light guide plate 1 , specifically Set according to the desired brightness.
本实施例以第一导光板1的一个侧面设置有第一发光二极管灯条4为例来具体说明冰箱照明装置的工作原理:第一发光二极管灯条4发出的光线以不同的入射角进入第一导光板1,以垂直入射的光线为界线,入射点在界限上部的那部分光线经第一导光板1折射后从邻近散射膜3的表面直接射出,到达散射膜3,入射点在界限下部的另一部分光线经反光网点5反射后,再次进入第一导光板1,然后射出第一导光板1,到达散射膜3。散射膜3对从第一导光板1射出的光线进行散射,使得光线进一步向各个方向发散,然后射向第二导光板2。第二导光板2对从散射膜3射出的光线再次发散。In this embodiment, the first light-emitting diode strip 4 is disposed on one side of the first light guide plate 1 as an example to specifically describe the working principle of the refrigerator lighting device: the light emitted by the first LED strip 4 enters the first angle at different incident angles. A light guide plate 1 is defined by a light incident perpendicularly, and a portion of the light having an incident point at the upper portion of the boundary is refracted by the first light guide plate 1 and directly emitted from the surface adjacent to the scattering film 3 to reach the scattering film 3, and the incident point is at a lower limit. Another portion of the light is reflected by the reflective mesh point 5, enters the first light guide plate 1 again, and then exits the first light guide plate 1 to reach the scattering film 3. The scattering film 3 scatters the light emitted from the first light guide plate 1 so that the light is further diverged in various directions and then incident on the second light guide plate 2. The second light guide plate 2 diverges the light emitted from the scattering film 3 again.
本实施例的技术方案通过采用贴合的第一导光板和第二导光板,在第一导光板和第二导光板之间设置散射膜,在第一导光板的至少一个侧面上设置第一发光二极管灯条,且该第一导光板中远离散射膜的表面上设置有反光网点,能够解决现有的照明装置占用空间较大的问题,通过减小冰箱照明装置的体积,减小了对冰箱内部空间的占用。The technical solution of the embodiment provides a first film and a second light guide plate, and a scattering film is disposed between the first light guide plate and the second light guide plate, and the first light guide plate is disposed on at least one side of the first light guide plate. The LED light bar, and the surface of the first light guide plate disposed away from the scattering film is provided with a reflective mesh point, which can solve the problem that the existing lighting device occupies a large space, and reduces the volume of the refrigerator lighting device by reducing the volume of the refrigerator lighting device. The occupation of the internal space of the refrigerator.
优选的,第二导光板2上临近散射膜3的表面上可以设置有雕刻图案或印刷图案,具体的,可以在第二导光板2上雕刻形成凹槽或多个凹点,当从散射膜3出射的光线射在凹槽或凹点上发生反射或折射,光线的传播方向发生变化,使得射出第二导光板2的该部分光线的亮度不同于没有雕刻图案的其它区域,因此能将雕刻图案凸显出来。或者可以在第二导光板2上印刷图案,该印刷图案可采用阻光材料印刷在第二导光板2上。该雕刻图案或印刷图案可以为标识信息或提示信息,具体可以为文字或由线条组成的具有艺术效果的图画。若为文字,则可以用于标识该冰箱的一些基本参数,例如型号、容量、额定电压、额定功率或其它参数,也可以为一些提示信息,例如使用冰箱的注意事项等,能够改善传统的将冰箱基本参数贴在外表面而影响美观的问题。若为具有艺术效果的图画,则能够增强照明装置的艺术效果,提高冰箱使用过程的舒适性。Preferably, the surface of the second light guide plate 2 adjacent to the scattering film 3 may be provided with an engraved pattern or a printed pattern. Specifically, a groove or a plurality of pits may be engraved on the second light guide plate 2 when the scattering film is used. 3 The emitted light is reflected or refracted on the groove or the pit, and the direction of propagation of the light changes, so that the brightness of the portion of the light that exits the second light guide plate 2 is different from other regions without the engraved pattern, so the engraving can be performed. The pattern is highlighted. Alternatively, a pattern may be printed on the second light guide plate 2, and the printed pattern may be printed on the second light guide plate 2 with a light blocking material. The engraving pattern or the printing pattern may be identification information or prompt information, and may specifically be text or an artistically effective picture composed of lines. If it is text, it can be used to identify some basic parameters of the refrigerator, such as model, capacity, rated voltage, rated power or other parameters, or some tips, such as the use of refrigerators, etc., can improve the traditional The basic parameters of the refrigerator are attached to the outer surface to affect the aesthetics. If it is an artistically effective picture, it can enhance the artistic effect of the lighting device and improve the comfort of the refrigerator.
图2为本发明实施例一提供的冰箱照明装置的另一结构示意图,图3为本发明实施例一提供的冰箱照明装置的立体图。如图2和图3所示,在上述技术方案的基础上,冰箱照明装置还可以包括第二发光二极管灯条6,第二发光二极管灯条6设置在第二导光板2的至少一个侧面上,第二发光二极管灯条6发出的光入射到第二导光板2中,用于提高亮度。即第二发光二极管灯条6可以设置在第二导光板2的四个侧面,也可以设置在相对的两个侧面,也可以只设置在一个侧面上。可选的,将第一发光二极管灯条4和第二发光二极管灯条6设置在同一个侧面上,并根据实际需要,将两个灯条排成两排,设置在一个印刷电路板(Printed Circuit Board,简称PCB)上。第一发光二极管灯条4和第二发光二极管灯条6的设置方式具体可根据两个导光板的尺寸来设定,若导光板的尺寸较大,则可以设置多个灯条,以提高亮度和均匀度。另外,本领域技术人员可以理解的是,若第二导光板2上设置有印刷图案,则可以不设置第二发光二极管灯条6,仅采用第一发光二极管灯条4,其亮度足以满足照明的需要,且能够显示出印刷图案,若第二导光板2上设置有雕刻图案,则可以设置第二发光二极管灯条6,用于增强光线的亮度,以更好地满足照明的需要,且突出雕刻图案。2 is a schematic view showing another structure of a refrigerator lighting device according to Embodiment 1 of the present invention, and FIG. 3 is a perspective view of a refrigerator lighting device according to Embodiment 1 of the present invention. As shown in FIG. 2 and FIG. 3 , on the basis of the above technical solution, the refrigerator lighting device may further include a second LED strip 6 , and the second LED strip 6 is disposed on at least one side of the second light guide 2 . The light emitted from the second LED strip 6 is incident on the second light guide plate 2 for improving the brightness. That is, the second LED strips 6 may be disposed on the four sides of the second light guide plate 2, or may be disposed on opposite sides, or may be disposed on only one side. Optionally, the first LED strip 4 and the second LED strip 6 are disposed on the same side, and the two strips are arranged in two rows according to actual needs, and are disposed on a printed circuit board (Printed Circuit Board, referred to as PCB). The arrangement manner of the first LED strip 4 and the second LED strip 6 can be specifically set according to the size of the two light guide plates. If the size of the light guide plate is large, a plurality of light strips can be disposed to improve the brightness. And uniformity. In addition, it can be understood by those skilled in the art that if the second light guide plate 2 is provided with a printed pattern, the second light-emitting diode light strip 6 may not be disposed, and only the first light-emitting diode light strip 4 is used, and the brightness thereof is sufficient for the illumination. The need for, and can display a printed pattern, if the second light guide plate 2 is provided with an engraving pattern, a second LED light bar 6 can be provided for enhancing the brightness of the light to better meet the needs of illumination, and Highlight the engraving pattern.
照明装置还可以包括U型框8,将第一导光板1和第二导光板2装配在该U型框8的U型槽中,一方面用于固定安装两个导光板,另一方面,可将第一发光二极管灯条4和/或第二发光二极管灯条6也装配在U型槽中,第一发光二极管灯条4设置在U型槽底部与第一导光板1之间,第二发光二极管灯条6设置在U型槽底部与第二导光板2之间。具体可以将第一发光二极管灯条4和第二发光二极管灯条6固定在一个PCB上,也可以分别固定在两个PCB上,以粘贴、卡紧或螺栓联接的方式固定设置在U型槽上,使得灯条朝向对应的导光板发射光线。U型框8可以设置在导光板的至少一个侧面上,具体可与发光二级管灯条相匹配设置,以固定发光二极管灯条与导光板。U型槽上可通过螺栓连接的方式固定安装在冰箱的背板上。The illuminating device may further include a U-shaped frame 8 for assembling the first light guide plate 1 and the second light guide plate 2 in the U-shaped groove of the U-shaped frame 8 for fixing the two light guide plates on the one hand, and on the other hand, The first LED light bar 4 and/or the second LED light bar 6 can also be assembled in a U-shaped groove, and the first LED light bar 4 is disposed between the bottom of the U-shaped groove and the first light guide plate 1 The two LED strips 6 are disposed between the bottom of the U-shaped groove and the second light guide plate 2. Specifically, the first LED strip 4 and the second LED strip 6 may be fixed on one PCB, or may be respectively fixed on two PCBs, and fixedly disposed in the U-shaped slot by sticking, clamping or bolting. The light bar emits light toward the corresponding light guide plate. The U-shaped frame 8 can be disposed on at least one side of the light guide plate, and specifically can be matched with the light-emitting diode light strip to fix the LED light strip and the light guide plate. The U-shaped groove can be fixedly mounted on the back plate of the refrigerator by bolt connection.
优选的,反光网点5中临近第一发光二级管灯条4的分布密度小于远离第一发光二级管灯条4的分布密度,和/或临近第一发光二级管灯条4的反射强度小于远离第一发光二级管灯条4的反射强度。如图4所示,图4为本发明实施例一提供的冰箱照明装置中反光网点的分布示意图,是图1的俯视图,第一发光二级管灯条4从第一导光板1的左侧入射,临近第一发光二级管灯条4的反光网点5的分布密度较小,而远离第一发光二级管灯条4的反光网点5的分布密度较大。另外,反光网点5中左侧的反射强度可以小于右侧的反射强度,可以体现在左侧的反光网点5的面积较小,右侧的反光网点5的面积较大,还可以通过选用不同反射强度的材料来制成反光网点5,或通过调整反光网点5的凸点高度或凹点深度来实现。由于第一发光二级管灯条4发出的光线进入第一导光板1之后,在第一导光板1传播的过程中会产生能量损失,即临近第一发光二级管灯条4的光线能量较强,远离第一发光二级管灯条4的光线能量较弱。在光线能量较强的区域设置反光网点5的分布密度和/或反射强度小于光线能量较弱的区域,使得到达人眼的光均匀一致。另外,反光网点5的分布可设置为现有技术常用的错位分布、分组分布、环形分布、扇形分布或其它分布方式,反光网点5的形状可以设置为圆形、多边形以及其它形状,具体可由本领域技术人员自行设定,本实施例对此不作限定。Preferably, the distribution density of the first light-emitting diode strips 4 adjacent to the first light-emitting diode strips 4 is smaller than the distribution density away from the first light-emitting diode strips 4, and/or the reflection of the first LED strips 4 The intensity is less than the intensity of the reflection away from the first light-emitting diode strip 4. As shown in FIG. 4, FIG. 4 is a schematic diagram showing a distribution of reflective mesh points in a refrigerator lighting device according to Embodiment 1 of the present invention, which is a top view of FIG. 1, and a first LED light bar 4 is disposed from the left side of the first light guide plate 1. At the incident, the distribution density of the reflective mesh dots 5 adjacent to the first LED strip 4 is small, and the distribution density of the reflective mesh dots 5 away from the first LED strip 4 is large. In addition, the reflection intensity on the left side of the reflective mesh point 5 may be smaller than the reflection intensity on the right side, and the area of the reflective mesh point 5 on the left side may be smaller, and the area of the reflective mesh point 5 on the right side is larger, and different reflections may be selected. The strength of the material is made into the reflective mesh point 5, or by adjusting the bump height or the pit depth of the reflective mesh point 5. Since the light emitted by the first LED strip 4 enters the first light guide plate 1, energy loss occurs during the propagation of the first light guide plate 1, that is, the light energy adjacent to the first LED strip 4 Stronger, the light energy away from the first LED strip 4 is weak. In the region where the light energy is strong, the distribution density and/or the reflection intensity of the reflective mesh point 5 is smaller than the region where the light energy is weak, so that the light reaching the human eye is uniform. In addition, the distribution of the reflective mesh points 5 may be set to a misalignment distribution, a group distribution, a ring distribution, a fan distribution or other distribution methods commonly used in the prior art, and the shape of the reflective mesh dots 5 may be set to a circle, a polygon, and other shapes, specifically It is set by the person skilled in the art, which is not limited in this embodiment.
另一种优选的方案为,在第一导光板1中设置有反光网点5的表面上还设置有反射膜7,以增强反射性能,该反射膜7的厚度可以为(0.1-0.2)mm。该反射膜7可采用现有技术中常用的反射膜,可粘贴于第一导光板1的表面上,将反光网点5包覆在反射膜7与第一导光板1之间,用于为照明装置提供一个洁净的背景,且加强光线的反射效果,进一步减少光线损失,提高光利用率。同时,反射膜7还能够保护反光网点5,减少磨损,延长照明装置的使用寿命。若采用上述实施例提供的第一导光板1、第二导光板2、散射膜3以及反射膜7组成冰箱照明装置,则该冰箱照明装置的厚度不超过8mm,极大的减少了对冰箱内部空间的占用。Another preferred solution is that a reflective film 7 is further provided on the surface of the first light guide plate 1 on which the reflective mesh dots 5 are provided to enhance the reflective performance. The reflective film 7 may have a thickness of (0.1-0.2) mm. The reflective film 7 can be applied to the surface of the first light guide plate 1 by using a reflective film commonly used in the prior art, and the reflective mesh dot 5 is coated between the reflective film 7 and the first light guide plate 1 for illumination. The device provides a clean background and enhances the reflection of light, further reducing light loss and improving light utilization. At the same time, the reflective film 7 can also protect the reflective mesh point 5, reduce wear and prolong the service life of the lighting device. If the first light guide plate 1, the second light guide plate 2, the scattering film 3, and the reflective film 7 provided by the above embodiments are used to constitute a refrigerator lighting device, the thickness of the refrigerator lighting device does not exceed 8 mm, which greatly reduces the interior of the refrigerator. The occupation of space.
实施例2Example 2
图5为本发明实施例二提供的冰箱照明装置的结构示意图,图6为本发明实施例二提供的冰箱照明装置的另一结构示意图。如图5和图6所示,在上述技术方案的基础上,该冰箱照明装置包括第一导光板1和具有散射功能的灯罩9,第一导光板1的至少一个侧面上设置有第一发光二极管灯条4,第一发光二极管灯条4发出的光入射到第一导光板1中。其中,灯罩9可采用具有散射功能的材料制成,或在灯罩9临近第一导光板1的表面上涂覆散射材料,能够对第一导光板1出射的光线进行散射。灯罩9围设在第一导光板1以及第一发光二极管灯条4外部,起到保护第一导光板1以及第一发光二极管灯条4的作用。另外,在第一导光板1中远离灯罩9的表面上设置有反光网点5。FIG. 5 is a schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention, and FIG. 6 is another schematic structural diagram of a refrigerator lighting device according to Embodiment 2 of the present invention. As shown in FIG. 5 and FIG. 6 , on the basis of the above technical solution, the refrigerator lighting device includes a first light guide plate 1 and a light cover 9 having a scattering function, and the first light guide plate 1 is provided with a first light emission on at least one side surface thereof. The diode light bar 4, the light emitted by the first light-emitting diode light bar 4 is incident on the first light guide plate 1. The lampshade 9 may be made of a material having a scattering function, or may be coated with a scattering material on the surface of the lampshade 9 adjacent to the first light guiding plate 1, so that the light emitted from the first light guiding plate 1 can be scattered. The lamp cover 9 is disposed outside the first light guide plate 1 and the first LED strip 4 to protect the first light guide plate 1 and the first LED strip 4 . Further, a reflective mesh dot 5 is provided on the surface of the first light guiding plate 1 remote from the lamp cover 9.
第一导光板1上设置的反光网点的设置方式可参照上述实施例,此处不再赘述。For the manner of setting the reflective network dots disposed on the first light guide plate 1, refer to the above embodiments, and details are not described herein again.
U型框8可以设置在灯罩9的内部,也可以与灯罩9匹配设置,将第一导光板1和第一发光二级管灯条4围设在内部,以缩小冰箱照明装置的体积。The U-shaped frame 8 may be disposed inside the lamp cover 9, or may be matched with the lamp cover 9, and the first light guide plate 1 and the first light-emitting diode light bar 4 are enclosed inside to reduce the volume of the refrigerator lighting device.
上述技术方案采用具有散射功能的灯罩代替上述实施例的第二导光板和散射膜,并将照明装置设置成一个整体,除了具有上述实施例所具备的有益效果之外,还能进一步缩小冰箱照明装置的体积,且能够对照明装置内部各器件进行保护,且更容易搬运与安装。The above technical solution adopts a lamp cover with a scattering function instead of the second light guide plate and the scattering film of the above embodiment, and the illumination device is arranged as a whole. In addition to the beneficial effects of the above embodiments, the refrigerator illumination can be further reduced. The size of the device, and the ability to protect the various devices inside the lighting device, and easier to handle and install.
本发明实施例还提供一种冰箱,该冰箱可采用上述实施例所采用的冰箱照明装置,冰箱照明装置设置在冰箱的背板上,照明装置中各发光二级管灯条的电源可以由冰箱的控制板来提供。采用上述冰箱照明装置能够减小对冰箱内部空间的占用,且能够提高冰箱内部的美观程度。The embodiment of the present invention further provides a refrigerator, which can adopt the refrigerator lighting device used in the above embodiment, the refrigerator lighting device is disposed on the backboard of the refrigerator, and the power source of each light-emitting diode light bar in the lighting device can be provided by the refrigerator. The control panel comes with it. The use of the above-described refrigerator lighting device can reduce the occupation of the internal space of the refrigerator and can improve the aesthetics of the interior of the refrigerator.
最后应说明的是:以上各实施例仅用以说明本发明的技术方案,而非对其限制;尽管参照前述各实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改,或者对其中部分或者全部技术特征进行等同替换;而这些修改或者替换,并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (13)

  1. 一种冰箱照明装置,其特征在于,包括贴合的第一导光板和第二导光板,所述第一导光板和所述第二导光板之间设置有散射膜,所述第一导光板的至少一个侧面上设置有第一发光二极管灯条,所述第一发光二极管灯条发出的光入射到所述第一导光板中;A refrigerator lighting device includes a first light guide plate and a second light guide plate, and a scattering film is disposed between the first light guide plate and the second light guide plate, and the first light guide plate is disposed a first LED light bar is disposed on at least one side thereof, and light emitted by the first LED light bar is incident into the first light guide plate;
    所述第一导光板中远离所述散射膜的表面上设置有反光网点。 Reflective dots are disposed on a surface of the first light guide plate remote from the scattering film.
  2. 根据权利要求1所述的冰箱照明装置,其特征在于,还包括第二发光二极管灯条,所述第二发光二极管灯条设置在所述第二导光板的至少一个侧面上,所述第二发光二极管灯条发出的光入射到所述第二导光板中。The refrigerator lighting device according to claim 1, further comprising a second LED light bar, wherein the second LED light bar is disposed on at least one side of the second light guide plate, the second Light emitted from the LED strip is incident on the second light guide.
  3. 根据权利要求1或2所述的冰箱照明装置,其特征在于,所述第二导光板上临近所述散射膜的表面上设置有雕刻图案或印刷图案。 The refrigerator lighting device according to claim 1 or 2, wherein an engraved pattern or a printed pattern is provided on a surface of the second light guide plate adjacent to the scattering film.
  4. 根据权利要求3所述的冰箱照明装置,其特征在于,所述反光网点中临近所述第一发光二级管灯条的分布密度小于远离所述第一发光二级管灯条的分布密度;和/或The refrigerator lighting device according to claim 3, wherein a distribution density of the light-emitting grid points adjacent to the first light-emitting diode light strip is smaller than a distribution density of the light-emitting diode strips away from the first light-emitting diode; and / or
    所述反光网点中临近所述第一发光二级管灯条的反射强度小于远离所述第一发光二级管灯条的反射强度。The reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
  5. 根据权利要求4所述的冰箱照明装置,其特征在于,所述第一导光板中设置有反光网点的表面上还设置有反射膜。The refrigerator lighting device according to claim 4, wherein a reflective film is further disposed on the surface of the first light guide plate on which the reflective mesh dots are disposed.
  6. 根据权利要求5所述的冰箱照明装置,其特征在于,所述反光网点为凸点或凹点。 The refrigerator lighting device according to claim 5, wherein the reflective mesh dots are bumps or pits.
  7. 根据权利要求6所述的冰箱照明装置,其特征在于,所述雕刻图案或印刷图案为标识信息或提示信息。The refrigerator lighting device according to claim 6, wherein the engraving pattern or the printing pattern is identification information or prompt information.
  8. 根据权利要求7所述的冰箱照明装置,其特征在于,所述第一导光板和第二导光板采用亚克力板。The refrigerator lighting device according to claim 7, wherein the first light guide plate and the second light guide plate are made of an acrylic plate.
  9. 根据权利要求2所述的冰箱照明装置,其特征在于,还包括U型框,所述贴合的第一导光板和第二导光板,以及第一发光二级管灯条和第二发光二极管灯条装配在所述U型框的U型槽中,所述第一发光二级管灯条设置在所述U型槽底部与第一导光板之间,所述第二发光二极管灯条设置在所述U型槽底部与第二导光板之间。The refrigerator lighting device according to claim 2, further comprising a U-shaped frame, the attached first light guide plate and the second light guide plate, and the first light-emitting diode light bar and the second light-emitting diode The light bar is disposed in the U-shaped groove of the U-shaped frame, the first LED light bar is disposed between the bottom of the U-shaped groove and the first light guide plate, and the second LED light bar is disposed Between the bottom of the U-shaped groove and the second light guide plate.
  10. 一种冰箱照明装置,其特征在于,包括第一导光板和具有散射功能的灯罩,所述第一导光板的至少一个侧面上设置有第一发光二极管灯条,所述第一发光二极管灯条发出的光入射到所述第一导光板中;A refrigerator lighting device, comprising: a first light guide plate and a lamp cover having a scattering function; at least one side of the first light guide plate is provided with a first light-emitting diode light bar, the first light-emitting diode light bar The emitted light is incident into the first light guide plate;
    所述灯罩围设在所述第一导光板以及第一发光二极管灯条外部;The lampshade is disposed outside the first light guide plate and the first light emitting diode light bar;
    所述第一导光板中远离所述灯罩的表面上设置有反光网点。Reflective dots are disposed on a surface of the first light guide plate remote from the lamp cover.
  11. 根据权利要求10所述的冰箱照明装置,其特征在于,所述反光网点中临近所述第一发光二级管灯条的分布密度小于远离所述第一发光二级管灯条的分布密度;和/或The refrigerator lighting device according to claim 10, wherein a distribution density of the light-emitting grid points adjacent to the first light-emitting diode light strip is smaller than a distribution density of the light-emitting diode strips away from the first light-emitting diode; and / or
    所述反光网点中临近所述第一发光二级管灯条的反射强度小于远离所述第一发光二级管灯条的反射强度。The reflection intensity of the light-emitting grid adjacent to the first LED light strip is less than the reflection intensity away from the first LED strip.
  12. 根据权利要求10或11所述的冰箱照明装置,其特征在于,还包括U型框,所述第一导光板和第一发光二级管灯条装配在所述U型框的U型槽中,所述第一发光二级管灯条设置在所述U型槽底部与第一导光板之间,所述U型框设置在所述灯罩内部或与所述灯罩匹配设置。The refrigerator lighting device according to claim 10 or 11, further comprising a U-shaped frame, wherein the first light guide plate and the first light-emitting diode light strip are assembled in a U-shaped groove of the U-shaped frame The first LED light strip is disposed between the bottom of the U-shaped groove and the first light guide plate, and the U-shaped frame is disposed inside the light cover or matched with the light cover.
  13. 一种冰箱,其特征在于,采用权利要求1-12任一项所述的冰箱照明装置;A refrigerator characterized by using the refrigerator lighting device according to any one of claims 1 to 12;
    所述冰箱照明装置设置在所述冰箱的背板上。The refrigerator lighting device is disposed on a backboard of the refrigerator.
PCT/CN2013/090143 2013-06-03 2013-12-20 Illumination device for refrigerator, and refrigerator WO2014194650A1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108826813A (en) * 2018-07-02 2018-11-16 青岛海尔股份有限公司 Refrigerator, its control method and control system with luminous door body
CN114543422A (en) * 2022-02-16 2022-05-27 长虹美菱股份有限公司 Fan housing assembly and refrigerator

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103322763A (en) * 2013-06-03 2013-09-25 青岛海尔特种电冰箱有限公司 Refrigerator lighting device and refrigerator
JP6349081B2 (en) * 2013-12-10 2018-06-27 Kisco株式会社 refrigerator
CN104121754B (en) * 2014-07-31 2016-08-24 贵州航天风华实业有限公司 A kind of LED refrigerator lamp and installation method thereof
KR20160096318A (en) * 2015-02-05 2016-08-16 현대자동차주식회사 Battery charging status indicator for electric vehicle
CN106895653B (en) * 2015-12-18 2020-01-14 松下电器研究开发(苏州)有限公司 Luminous shelf assembly and refrigerator with same
CN109959198A (en) * 2017-12-23 2019-07-02 青岛海尔股份有限公司 Refrigeration compartment and refrigerator with it
CN109959215B (en) * 2017-12-23 2020-10-30 青岛海尔股份有限公司 Area source assembly and refrigerator with same
US10877202B2 (en) 2017-12-23 2020-12-29 Qingdao Haier Co., Ltd. Surface light source assembly and refrigerator having the same
CN108693597A (en) * 2018-08-01 2018-10-23 京东方科技集团股份有限公司 Light guide structure and its manufacturing method, backlight module, liquid crystal display device
DE102019107001A1 (en) * 2019-03-19 2020-09-24 OSRAM CONTINENTAL GmbH Optical device, arrangement, vehicle and method
CN110470098A (en) * 2019-09-16 2019-11-19 长虹美菱股份有限公司 A kind of refrigerator unbounded area source and its manufacture craft
CN111503982A (en) * 2020-04-15 2020-08-07 长虹美菱股份有限公司 Refrigerator storage cover plate with luminous patterns and preparation method
CN214425903U (en) * 2021-02-01 2021-10-19 漳州立达信光电子科技有限公司 Panel light
EP4043816A1 (en) * 2021-02-10 2022-08-17 LG Electronics Inc. Lighting module and refrigerator having dispenser

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056401U (en) * 1991-07-09 1993-01-29 オーツタイヤ株式会社 Light guide device
CN1912457A (en) * 2005-07-29 2007-02-14 株式会社茉莉特斯 Surface lighting device
CN102182966A (en) * 2011-05-06 2011-09-14 合肥美菱股份有限公司 Backlight lighting device and backlight lighting method thereof
CN103322763A (en) * 2013-06-03 2013-09-25 青岛海尔特种电冰箱有限公司 Refrigerator lighting device and refrigerator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02157791A (en) * 1988-12-09 1990-06-18 Fujitsu Ltd Surface illuminating equipment
JP2005310751A (en) * 2004-03-24 2005-11-04 Matsushita Electric Ind Co Ltd Lighting system
CN102059865B (en) * 2009-11-12 2014-06-11 京东方科技集团股份有限公司 Light-guiding plate and printing method thereof and backlight module
CN202469661U (en) * 2012-03-19 2012-10-03 海尔集团公司 Lighting device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH056401U (en) * 1991-07-09 1993-01-29 オーツタイヤ株式会社 Light guide device
CN1912457A (en) * 2005-07-29 2007-02-14 株式会社茉莉特斯 Surface lighting device
CN102182966A (en) * 2011-05-06 2011-09-14 合肥美菱股份有限公司 Backlight lighting device and backlight lighting method thereof
CN103322763A (en) * 2013-06-03 2013-09-25 青岛海尔特种电冰箱有限公司 Refrigerator lighting device and refrigerator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108826813A (en) * 2018-07-02 2018-11-16 青岛海尔股份有限公司 Refrigerator, its control method and control system with luminous door body
CN114543422A (en) * 2022-02-16 2022-05-27 长虹美菱股份有限公司 Fan housing assembly and refrigerator

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