Area light source and refrigerator

Abstract

The utility model provides an area light source and a refrigerator. The surface light source comprises an appearance layer panel, a light guide layer panel, a reflection layer panel and an LED light bar. Water-soluble glue dot arrays are arranged on the first side plate face and the second side plate face of the light guide layer panel, the appearance layer panel is arranged on one side of the first side plate face of the light guide layer panel, and the reflection layer panel is arranged on one side of the second side plate face of the light guide layer panel. The appearance layer panel and the reflection layer panel are pasted and fixed to the light guide layer panel through the water-soluble glue dot arrays on the corresponding sides. The area light source can be used for the refrigerator and installed on a refrigerator door plate. The water-soluble glue dot array stickers are designed on the two sides of the light guide panel layer, the water-soluble glue dot array stickers have the functions of light guide dots and bonding dots, the appearance layer panel, the light guide layer panel and the reflection layer panel are bonded together through the water-soluble glue dot arrays, the structure is simple, and machining is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of surface light sources, in particular to a surface light source and a refrigerator. Background Art

[0002] Surface light sources are used for lighting products such as refrigerators and freezers.

[0003] In the prior art, the surface light source includes a multi-layer structure, referring to Figure 1 For example, it includes an exterior panel 1, a diffusion panel 2, a light guide panel 3, and a reflective panel 4. Conventional surface light sources utilize laser dotting, hot pressing, or printing to create the light guide dots on the light guide panel. Each panel layer is laminated, assembled by bonding, and sealed with tape. Finally, an aluminum alloy or plastic frame 7 is installed.

[0004] This type of surface light source has many components and a complex structure. However, as consumers demand for aesthetically pleasing refrigerators and freezers, the surface light sources in the prior art are no longer able to meet the growing demand.

[0005] For example, to enhance their appearance and enhance their sense of technology and coolness, many refrigerators are now using illuminated doors. However, using conventional surface light sources leaves a large area of ​​the door glass, light guide plate, and reflector unattached. This lacks adhesion to the door's foam material, creating a risk of the glass falling off. Lamination, however, would compromise the luminous effect. Utility Model Content

[0006] The purpose of the present utility model is to solve one of the aforementioned technical problems and to provide a surface light source and a refrigerator.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A surface light source, comprising an exterior layer panel, a light guide layer panel, a reflective layer panel and an LED light bar;

[0009] The first side panel surface and the second side panel surface of the light guide layer panel are both provided with water-soluble glue dot arrays, the appearance layer panel is arranged on the side of the first side panel surface of the light guide layer panel, and the reflective layer panel is arranged on the side of the second side panel surface of the light guide layer panel. The appearance layer panel and the reflective layer panel are both adhered and fixed to the light guide layer panel through the water-soluble glue dot arrays on the corresponding sides.

[0010] In some embodiments of the present invention, light guide points are printed on the first side panel surface and / or the second side panel surface of the light guide layer panel.

[0011] In some embodiments of the present invention, the size of the appearance layer panel is larger than the size of the light guide layer panel and the reflective layer panel. After the appearance layer panel, the light guide layer panel and the reflective layer panel are installed together, the edge of the appearance layer panel is located on the outside of the edge of the light guide layer panel and the edge of the reflective layer panel; the LED light bar is installed on the PCB board, and the PCB board is installed on the installation side of the appearance layer panel and the light guide layer panel, and is located at the part of the appearance layer panel that is located on the outside of the edge of the light guide layer panel.

[0012] In some embodiments of the present invention, the lamp beads of the LED light strip face toward the edge of the light guide layer panel.

[0013] In some embodiments of the present invention, the exterior layer panel is a glass panel.

[0014] In some embodiments of the present invention, a pattern is printed on the appearance layer panel.

[0015] In some embodiments of the present invention, the pattern includes a light-transmitting area and a light-impermeable area printed on the appearance layer panel.

[0016] In some embodiments of the present invention, a shielding image area is printed on the circumferential edge of the exterior layer panel.

[0017] In some embodiments of the present invention, the glue dots of the water-soluble glue dot array are evenly arranged.

[0018] Some embodiments of the present invention further provide a refrigerator, comprising the surface light source described above, wherein the surface light source is mounted on the refrigerator door.

[0019] Compared with the existing technology, the surface light source provided by the utility model has the following technical advantages:

[0020] 1. Improved the assembly structure between the various layers of the surface light source. A water-soluble adhesive dot array is designed on both sides of the light guide panel layer. This water-soluble adhesive dot array serves as both a light guide point and a bonding point. The appearance layer panel, light guide layer panel, and reflective layer panel are bonded together by the water-soluble adhesive dot array, resulting in a simple structure and easy processing.

[0021] 2. Compared with the existing technology, the surface light source omits the frame fixing structure and the diffusion layer panel, simplifies the overall structure of the surface light source, reduces the production cost and processing cost of the surface light source, and improves processing efficiency.

[0022] 3. The overall thickness of the surface light source is reduced, and it is particularly suitable as a surface light source for refrigerator door panels. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] Figure 1 It is a schematic diagram of the structure of a surface light source in the prior art;

[0025] Figure 2 This is a schematic diagram of the decomposition structure of the surface light source of the utility model;

[0026] Figure 3 This is a schematic diagram of the structure of the water-soluble glue dot array of the surface light source of the utility model;

[0027] Figure 4 This is a schematic diagram of the installation structure of the LED lamp beads of the surface light source of the utility model;

[0028] Figure 5 This is the lighting effect diagram of the surface light source of the utility model;

[0029] Figure 6 This is the distribution diagram of the image area and the blocked area of ​​the surface light source of the utility model;

[0030] In the above figures:

[0031] 1-Appearance layer panel, 101-Occlusion area, 102-Image area;

[0032] 2-PCB board;

[0033] 3-Diffusion layer panel;

[0034] 4-light guide layer panel, 401-water-soluble glue dot array;

[0035] 5-Reflective layer panel;

[0036] 6-LED light strip;

[0037] 7-Border. DETAILED DESCRIPTION

[0038] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0039] It should be noted that when an element is referred to as being “disposed on” or “connected to” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0040] It should be understood that the terms "upper", "lower", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] The terms "first" and "second" are used for descriptive purposes only and are not intended to imply relative importance.

[0042] refer to Figure 2 A first embodiment of the present invention provides a surface light source comprising an exterior panel 1, a light guide panel 4, a reflective panel 5, and an LED light bar 6, wherein the LED light bar 6 is mounted on a PCB 2. The exterior panel 1, light guide panel 4, and reflective panel 5 are all square panels and are assembled together in sequence.

[0043] The first side panel and the second side panel of the light guide layer panel 4 are both provided with a water-soluble glue dot array 401, and the water-soluble glue dot array 401 includes a plurality of glue dots. Figure 3 The exterior panel 1 is positioned on the first side of the light guide panel 4, and the reflective panel 5 is positioned on the second side of the light guide panel 4. Both the exterior panel 1 and the reflective panel 5 are adhered to the light guide panel 4 via a water-soluble adhesive dot array 401 on their respective sides. It should be understood that to ensure a good luminous effect, the adhesive dots in the water-soluble adhesive dot array are evenly arranged.

[0044] Compared with the surface light source in the prior art, the assembly form between the panels of each layer of the surface light source is simplified, and the overall thickness of the surface light source is reduced, but the overall lighting effect is not affected.

[0045] In the prior art, conventional light guide plates use laser dotting, hot pressing, or printing to create light guide dots. In some embodiments of the present invention, light guide dots may not be processed, and only an array of glue dots may be used as light guide dots. In some embodiments of the present invention, light guide dots may be printed on one or both sides of the first and second side panels of the light guide layer panel 4 to enhance the luminous effect.

[0046] In some embodiments of the present invention, the size of the appearance layer panel 1 is larger than the size of the light guide layer panel 4 and the reflective layer panel 5, and the sizes of the light guide layer panel 4 and the reflective layer panel 5 are equal. After the appearance layer panel 1, the light guide layer panel 4, and the reflective layer panel 5 are installed together, the edge of the appearance layer panel 1 is located on the outside of the edge of the light guide layer panel 4 and the edge of the reflective layer panel 5.

[0047] refer to Figure 4 This size design facilitates the installation of the entire surface light source and the LED light strip 6. The LED light strip 6 is mounted on the PCB board 2, which is mounted on the mounting side of the exterior layer panel 1 and the light guide layer panel 4, that is, on the side of the exterior layer panel 1 facing the first side panel of the light guide layer panel 4, and is located on the portion of the exterior layer panel 1 outside the edge of the light guide layer panel 4.

[0048] In some embodiments of the present invention, the LED light strip 6 has its light beads facing the edge of the light guide panel 4. This structure allows the light strip to illuminate the gaps between the exterior panel 1 and the light guide panel 4, as well as between the light guide panel 4 and the reflective panel 5, improving the lighting effect. As a preferred structure, the overall thickness of the LED light strip 6 is equal to the sum of the heights of the light guide panel 4, the reflective panel 5, and the two layers of glue dot arrays.

[0049] The LED light strip 6 can be optionally configured on one side or both sides of the light guide layer panel 4 , and the water-based photosensitive adhesive dots refract the light to light up the light guide layer panel 4 .

[0050] refer to Figure 5 In some embodiments of the present invention, the exterior panel 1 is a glass panel. To improve the aesthetics, a pattern may be printed on the exterior panel 1, which is the pattern area 102. The pattern includes a light-transmitting area and an opaque area printed on the exterior panel. The opaque area may be a dark-colored layer, and the light-transmitting area may be a light-colored layer or no layer. Figure 3 The following figure shows a display effect of an exterior panel 1 with a starry sky display effect. The exterior panel 1 is coated with a primarily black coating, and a number of translucent starry dots are designed on the black coating. When the LED light strip 6 is illuminated, a starry sky illumination effect is produced. This surface light source does not use a diffuser. Instead, a pattern is silk-screened on the inside of the glass exterior panel 1. The pattern uses black as the base color, combined with patterns such as the starry sky and the Milky Way, to form hollow star dots. Then, through programming, the light strip glows with a breathing effect, ultimately displaying a cool, twinkling starry sky effect.

[0051] refer to Figure 6In some embodiments of the present invention, a shielding image area 101 is printed on the circumferential edge of the exterior panel 1, and the central portion of the shielding area 101 is an image area 102. The width of the shielding area 101 can be designed to be equal to the wider portion of the exterior panel 1 relative to the light guide panel 4 and the reflective panel 5. This can block the installation position of the LED light strip 6, improving the overall aesthetics of the surface light source.

[0052] A second embodiment of the present invention provides a refrigerator comprising the surface light source of the first embodiment, mounted on the refrigerator door. The refrigerator manufacturer first uses double-sided tape to attach the inner perimeter of the exterior panel 1 to the plastic frame of the refrigerator door. The panel then is placed in a mold, the inner door panel is fastened, and foam glue is injected into the door cavity. The foam glue adheres to the reflective sheet, enhancing the bonding strength with the glass.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A surface light source, characterized in that: Including appearance layer panel, light guide layer panel, reflective layer panel and LED light strip; The first side panel surface and the second side panel surface of the light guide layer panel are both provided with water-soluble glue dot arrays, the appearance layer panel is arranged on the side of the first side panel surface of the light guide layer panel, and the reflective layer panel is arranged on the side of the second side panel surface of the light guide layer panel. The appearance layer panel and the reflective layer panel are both adhered and fixed to the light guide layer panel through the water-soluble glue dot arrays on the corresponding sides.

2. The surface light source according to claim 1, wherein Light guide points are printed on the first side panel surface and / or the second side panel surface of the light guide layer panel.

3. The surface light source according to claim 1, wherein: The size of the appearance layer panel is larger than that of the light guide layer panel and the reflective layer panel. After the appearance layer panel, the light guide layer panel and the reflective layer panel are installed together, the edge of the appearance layer panel is located outside the edge of the light guide layer panel and the reflective layer panel; the LED light bar is installed on the PCB board, and the PCB board is installed on the installation side of the appearance layer panel and the light guide layer panel, and is located at the part of the appearance layer panel located outside the edge of the light guide layer panel.

4. The surface light source according to claim 3, wherein: The lamp beads of the LED light bar face toward the edge of the light guide layer panel.

5. The surface light source according to claim 1, wherein The exterior layer panel is a glass panel.

6. The surface light source according to claim 1 or 5, characterized in that: The appearance layer panel is printed with patterns.

7. The surface light source according to claim 6, wherein: The pattern includes a light-transmitting area and a light-impermeable area printed on the appearance layer panel.

8. The surface light source according to claim 1 or 5, characterized in that: A shielding image area is printed on the circumferential edge of the exterior layer panel.

9. The surface light source according to claim 1, wherein: The glue dots of the water-soluble glue dot array are evenly arranged.

10. A refrigerator, characterized in that: The surface light source comprises the surface light source according to any one of claims 1 to 8, wherein the surface light source is installed on the door of a refrigerator.

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