Double-layer light-emitting surface light source

Abstract

The utility model relates to a double-layer light-emitting surface light source which comprises a light guide layer which comprises a light-emitting surface, a back surface opposite to the light-emitting surface and four side surfaces; the first diffusion layer covers the light emitting surface of the light guide layer; the first luminous body is arranged on at least one side surface of the light guide layer; the appearance layer covers the first diffusion layer; the first bracket is mounted on the side surface of the light guide layer, and a containing groove with an opening facing the appearance layer is formed; the second luminous body is mounted in the accommodating groove; and the second diffusion layer is mounted in the accommodating groove. According to the utility model, through the arrangement of the two luminous bodies, the illumination limitation of a single light source is improved, a more uniform illumination effect is provided, and meanwhile, the two luminous bodies can control and adjust the luminous characteristics through a preset program, so that the requirements of a user on personalized illumination and environment atmosphere creation are met, and the use experience of the user is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lighting technical field, especially relate to a double-layer light-emitting surface light source. BACKGROUND

[0002] In the current market environment, as an important part of household appliances, the design of the internal lighting system of refrigerators and freezers is crucial for user experience. In the prior art, refrigerators and freezers generally use a single white LED light source for internal lighting, and only adjust the color temperature to meet the different needs of users for warm and cool light. Although this design can provide basic lighting function, it has obvious limitations in functionality and aesthetics.

[0003] On the one hand, the design of a single light source lacks level and diversity in lighting effect, which cannot meet the needs of users for personalization and environment atmosphere creation. On the other hand, the lighting range and uniformity of a single light source are limited, which may result in insufficient lighting in some areas inside the refrigerator or freezer, affecting the user experience. In addition, with the improvement of consumer aesthetic standards, the traditional single light source design has been difficult to meet the market's pursuit of technology. SUMMARY

[0004] The utility model aims at solving one of the above technical problems, providing a double-layer light-emitting surface light source, which improves the lighting limitations of a single light source and provides more uniform lighting effect.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of:

[0006] A double-layer light-emitting surface light source, comprising:

[0007] A light guide layer comprising a light emitting surface, a back surface opposite to the light emitting surface, and four side surfaces;

[0008] A first diffusion layer covering the light emitting surface of the light guide layer;

[0009] A first light emitting body extending along the length direction of the side surface of the light guide layer and arranged on at least one side surface of the light guide layer;

[0010] An appearance layer covering the first diffusion layer, and the edge close to the first light emitting body extending to the outside of the light guide layer;

[0011] A first support installed on the side surface of the light guide layer where the first light emitting body is arranged, and a receiving groove with an opening facing the appearance layer formed on the first support;

[0012] A second light emitting body installed in the receiving groove;

[0013] The second diffusion layer is installed in the accommodating groove and is located between the second light emitter and the appearance layer, so that the light emitted by the second light emitter illuminates the appearance layer through the second diffusion layer.

[0014] In some embodiments of the utility model, the width of the second diffusion layer matches the width of the accommodating groove, and the width of the accommodating groove matches the second light emitter.

[0015] In some embodiments of the utility model, the back surface of the light guide layer is further covered by a reflection layer.

[0016] In some embodiments of the utility model, at least one frame strip is further included, which is installed on the side surface of the surface light source without the first light emitter.

[0017] In some embodiments of the utility model, at least one second bracket is further included, which is installed on the outer side of the first bracket and is connected to the first bracket through a screw.

[0018] In some embodiments of the utility model, the first light emitter includes a plurality of LED lamp beads arranged towards the light guide plate.

[0019] In some embodiments of the utility model, the second light emitter includes a plurality of LED lamp beads arranged towards the second diffusion layer.

[0020] In some embodiments of the utility model, an installation groove with an opening towards the light guide plate is formed on the first bracket, the groove wall of the installation groove is connected to the light emitting surface and the back surface of the light guide layer respectively, and the first light emitter is located in the installation groove.

[0021] In some embodiments of the utility model, the appearance layer at the opening of the accommodating groove is provided with a light guide dot, and the shape of the light guide dot is one or a combination of multiple shapes selected from the group consisting of a rhombus, a regular pentagon, a regular triangle, a circle, a regular hexagon, an ellipse and a regular octagon.

[0022] In some embodiments of the utility model, a wire layer is further included, which includes a plurality of wires, the wires are electrically connected to the first light emitter or the second light emitter, and the wires are distributed on the back surface of the light guide layer or extend along the edge of the light guide layer.

[0023] The utility model has the advantages of:

[0024] The utility model improves the lighting limitation of a single light source, provides more uniform lighting effect, and meets the needs of users for personalized lighting and environmental atmosphere creation, thereby improving the user experience. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, specific embodiments of the present application will be described in detail below with reference to the drawings. For those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0026] Figure 1 A schematic diagram of a double-layer light-emitting surface light source;

[0027] Figure 2 A schematic diagram of an exploded structure of a double-layer light-emitting surface light source;

[0028] Figure 3 A schematic diagram of a top cross-sectional view of a double-layer light-emitting surface light source;

[0029] In the drawings, the reference signs are as follows:

[0030] 1, light guide layer; 2, first diffusion layer; 3, appearance layer; 4, first light-emitting body; 5, first support; 51, accommodating groove; 52, mounting groove; 6, second light-emitting body; 7, second diffusion layer; 8, reflecting layer; 9, frame strip; 10, second support; 101, screw. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present application more clear, the present application is described and explained below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application. Based on the embodiments provided by the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] Obviously, the drawings described below are only some examples or embodiments of the present application, and for those skilled in the art, the present application can also be applied to other similar situations without creative labor.

[0033] The terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include one or more of the features.

[0034] Unless otherwise defined, the technical terms or scientific terms involved in the present application should be understood as the usual meaning by those skilled in the art to which the present application belongs. The terms "one", "a", "an", and similar words involved in the present application do not represent quantity limitation, but can represent singular or plural. The terms "include", "contain", "have" and any variations thereof involved in the present application are intended to cover non-exclusive inclusion.

[0035] In the description of the utility model, it needs to explain, unless another explicit stipulation and limitation, the term "installation", "link", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be direct connection, also can indirectly connect through the intermediate medium, can be two element inside the intercommunication. For ordinary skilled person in the art, the above-mentioned term can be understood in the specific meaning in the utility model according to specific circumstances.

[0036] The technical scheme of the utility model will be described in detail below in combination with specific embodiments and the drawings of the specification.

[0037] As shown in the drawings, in one illustrative embodiment of the utility model double-layer light-emitting surface light source, the surface light source is used for the illumination of refrigerator, freezer and other refrigeration equipment, which includes light guide layer 1, first diffusion layer 2, first light-emitting body 4, appearance layer 3, first support 5, second light-emitting body 6 and second diffusion layer 7. Figure 1 -Appendix Figure 3 As shown in the drawings, in one illustrative embodiment of the utility model double-layer light-emitting surface light source, the surface light source is used for the illumination of refrigerator, freezer and other refrigeration equipment, which includes light guide layer 1, first diffusion layer 2, first light-emitting body 4, appearance layer 3, first support 5, second light-emitting body 6 and second diffusion layer 7.

[0038] Among them, light guide layer 1 is rectangular plate structure, which includes the light exit surface of the front side, the back surface opposite to the light exit surface and four side surfaces.

[0039] First diffusion layer 2 is arranged on the front side of light guide layer 1 and covers the light exit surface of light guide layer 1, and the edge of first diffusion layer 2 is flush with or located inside the edge of light guide layer 1.

[0040] First light-emitting body 4 is arranged on the side surface of the top of light guide layer 1 along the length direction of the side surface of light guide layer 1, and first light-emitting body 4 includes a plurality of LED lamp beads arranged towards the direction of light guide plate. The light emitted by first light-emitting body 4 illuminates light guide layer 1 from top to bottom. First light-emitting body 4 can be controlled by a pre-set program to achieve the effect of slow lighting after the refrigerator and other refrigeration equipment is opened. It should be noted that other lighting effects can also be achieved by modifying the pre-set program, which is not limited by the utility model.

[0041] Appearance layer 3 is arranged on the front side of first diffusion layer 2 and covers first diffusion layer 2, so that the light emitted by first light-emitting body 4 is diffused through first diffusion layer 2 and illuminates appearance layer 3. The edge of appearance layer 3 close to first light-emitting body 4, i.e. the top edge, extends to the outside of light guide layer 1, and the other three side edges without first light-emitting body 4 are flush with the edges of light guide layer 1.

[0042] First support 5 is a heat dissipation support, which is installed on the side surface of light guide layer 1 where first light-emitting body 4 is arranged, i.e. the top of light guide layer 1. First support 5 is formed with a receiving groove 51 with an opening facing appearance layer 3, and the opening of receiving groove 51 is attached to the part of appearance layer 3 extending outward.

[0043] The second light emitter 6 is installed at the bottom of the accommodating groove 51. The second light emitter 6 comprises a plurality of LED lamp beads arranged towards the second diffusion layer 7. The second light emitter 6 can be controlled by a preset program to form a light-emitting effect of reflecting light, changing light, flashing or breathing, and the like. The light-emitting color of the second light emitter 6 is ice blue or other light-emitting colors different from the first light emitter 4. It should be noted that other light-emitting effects can also be realized by modifying the preset program, and the utility model does not limit this.

[0044] The second diffusion layer 7 is installed in the accommodating groove 51 and located between the second light emitter 6 and the appearance layer 3 and close to the appearance layer 3, so that the light emitted by the second light emitter 6 illuminates the appearance layer 3 through the second diffusion layer 7. The groove walls on the front side and the rear side of the second diffusion layer 7 form protruding parts towards the groove to clampingly fix the second diffusion layer 7.

[0045] Specifically, the accommodating groove 51 and the first light emitter 4 are arranged in the vertical direction and located above the first light emitter 4. After the second light emitter 6 is installed, it is located above the first light emitter 4 in the vertical direction and behind the first light emitter 4 in the horizontal direction.

[0046] The first light emitter 4 and the second light emitter 6 are connected with the controller running the control program through the wire layer. The wire layer comprises at least two wires, the at least two wires are electrically connected with the first light emitter 4 or the second light emitter 6 respectively, and are distributed on the back of the light guide layer 1 or extend along the edge of the light guide layer 1.

[0047] In order to ensure the effective transmission and uniform distribution of the light emitted by the second light emitter 6 and improve the light-emitting efficiency, in some embodiments of the utility model, the width of the second diffusion layer 7 matches the width of the accommodating groove 51, and the width of the accommodating groove 51 matches the second light emitter 6.

[0048] In order to reduce light leakage and guide the light to be emitted from the first diffusion layer 2, in some embodiments of the utility model, a reflecting layer 8 is further included, which is a reflecting coating, a reflecting film or a reflecting plate, and the reflecting layer 8 covers the back of the light guide layer 1.

[0049] In order to encapsulate each layer of the surface light source, in some embodiments of the utility model, at least one frame strip 9 is further included, which is installed on the side of the surface light source where the first light emitter 4 is not arranged, is arranged in a П shape and completely covers the side part of each layer of the surface light source. In this embodiment, the frame strip 9 is installed on the left and right sides of the surface light source. The arrangement of the frame strip 9 enhances the structural stability and the aesthetic appearance of the surface light source, helps to protect the edge part of the light source and reduces the risk of damage.

[0050] In order to further improve the stability and aesthetic appearance of the surface light source structure, some embodiments of the utility model further include at least one second support 10, the second support 10 is a decorative support, which is installed on the outer side of the first support 5, is arranged in the shape of P, is connected with the first support 5 through the screw 101, and at least completely covers the top edge of the first support 5.

[0051] In order to realize the fixation of the first support 5, some embodiments of the utility model form the installation groove 52 with the opening facing the light guide plate on the first support 5, the groove walls of the installation groove 52 are connected with the light exit surface and the back surface of the light guide layer 1 respectively, and the first light emitting body 4 is located in the installation groove 52.

[0052] In order to enrich the light emitting effect of the second light emitting body 6, some embodiments of the utility model print the light guide dots on the appearance layer 3 at the opening of the accommodating groove 51, the shape of the light guide dots is one or more combinations of the rhombus, regular pentagon, regular triangle, circle, regular hexagon, ellipse and regular octagon. The light fiber of the light changing, flickering, breathing and other effects emitted by the second light emitting body is displayed through the pattern of the light guide dots.

[0053] Some embodiments of the utility model further include the wire layer, which includes a plurality of wires, is distributed on the back surface of the light guide layer 1, and is electrically connected with the first light emitting body 4 and the second light emitting body 6.

[0054] Finally, it should be noted that: the embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to.

[0055] The above embodiments are only used to illustrate the technical scheme of the utility model and not to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the specific embodiments of the utility model can be modified or some technical features can be replaced by equivalents. Without departing from the spirit of the technical scheme of the utility model, they should be covered in the technical scheme range of the utility model claimed.

Claims

1. A double-layer light emitting surface light source, characterized by, The application relates to a surface light source, comprising: a light guide layer, which comprises a light emitting surface, a back surface opposite to the light emitting surface, and four side surfaces; a first diffusion layer covering the light emitting surface of the light guide layer; a first light emitting body arranged on at least one side surface of the light guide layer along the length direction of the side surface; an appearance layer covering the first diffusion layer, which extends to the outside of the light guide layer near the edge of the first light emitting body; a first support installed on the side surface of the light guide layer provided with the first light emitting body, and a containing groove formed on the first support and opening towards the appearance layer; a second light emitting body installed in the containing groove; a second diffusion layer installed in the containing groove and located between the second light emitting body and the appearance layer, so that the light emitted by the second light emitting body illuminates the appearance layer through the second diffusion layer.

2. The double-layer light emitting surface light source according to claim 1, wherein The width of the second diffusion layer matches the width of the containing groove, and the width of the containing groove matches the width of the second light emitting body.

3. The double-layer light emitting surface light source according to claim 1, wherein Further comprising a reflection layer covering the back surface of the light guide layer.

4. The double-layer light emitting surface light source according to claim 1, wherein Further comprising at least one frame strip installed on the side surface of the surface light source not provided with the first light emitting body.

5. The double-layer light emitting surface light source according to claim 1, wherein Further comprising at least one second support installed on the outside of the first support and connected with the first support through a screw.

6. The double-layer light emitting surface light source according to claim 1, wherein The first light emitting body comprises a plurality of LED lamp beads arranged towards the light guide plate.

7. A double-layer light emitting surface light source according to claim 1 or 6, characterized in that The second light emitting body comprises a plurality of LED lamp beads arranged towards the second diffusion layer.

8. The double-layer light emitting surface light source according to claim 1, wherein An installation groove opening towards the light guide plate is formed on the first support, the groove wall of the installation groove is connected with the light emitting surface and the back surface of the light guide layer respectively, and the first light emitting body is located in the installation groove.

9. A double-layer light emitting surface light source according to claim 1, characterized in that, A light guide dot is arranged on the appearance layer at the opening of the containing groove, and the shape of the light guide dot is one or a combination of a rhombus, a regular pentagon, a regular triangle, a circle, a regular hexagon, an ellipse and a regular octagon.

10. A double-layer light emitting surface light source according to claim 1, characterized in that, Further comprising a wire layer comprising a plurality of wires, the wires being electrically connected with the first light emitting body or the second light emitting body and being distributed on the back surface of the light guide layer or extending along the edge of the light guide layer.

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