Area light source assembly and refrigerator

Abstract

The utility model discloses an area light source assembly and a refrigerator, and relates to the technical field of refrigerators, the area light source assembly comprises a back plate, a light guide structure, a light source piece and a diffusion plate, and the back plate is provided with an assembly groove; the light guide structure is arranged in the assembly groove; the light source piece is arranged in the assembling groove and located on the edge of the light guide structure; and the diffusion plate is bonded with the back plate so as to cover the notch of the assembly groove. According to the technical scheme, the thickness of the area light source assembly can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of refrigerator technology, and in particular to a surface light source component and a refrigerator. Background Technology

[0002] To facilitate viewing and retrieving items inside the refrigerator compartment, surface light source components need to be installed inside. Existing surface light source components have a relatively complex structure, generally requiring a frame to fix the light source, light guide plate, diffuser plate, etc. This results in a thick surface light source component, affecting aesthetics and reducing the effective usable volume of the refrigerator's storage compartment. Utility Model Content

[0003] The main objective of this invention is to propose a surface light source assembly and a refrigerator, which aims to reduce the thickness of the surface light source assembly.

[0004] To achieve the above objectives, the present invention proposes a surface light source assembly for use in a refrigerator, the surface light source assembly comprising:

[0005] Back plate, the back plate being provided with an assembly groove;

[0006] A light guide structure is disposed within the assembly groove;

[0007] A light source element, wherein the light source element is disposed within the mounting groove and located at the edge of the light guide structure; and

[0008] A diffuser plate, which is bonded to the back plate to cover the opening of the assembly slot.

[0009] In one embodiment, the diffuser plate is bonded to the top surface of the assembly groove wall.

[0010] In one embodiment, the top surface of the assembly groove wall is provided with an adhesive groove for providing adhesive, and the diffuser plate is bonded to the top surface of the assembly groove wall by the adhesive.

[0011] In one embodiment, the assembly groove includes a light source groove and a light guide groove that are connected to each other, and the light source component is disposed in the light source groove and extends partially into the light guide groove.

[0012] In one embodiment, the light source slot has a first slot wall facing the light-emitting surface of the light source component. The first slot wall is provided with a plurality of first limiting ribs, which are spaced apart along the length direction of the light source slot. The first limiting ribs abut against the light source component.

[0013] In one embodiment, the side of the first limiting rib facing the light guide groove is provided with a guiding slope, and the guiding slope gradually slopes towards the bottom of the light source groove in the direction close to the light source element.

[0014] In one embodiment, the light source groove has a second groove wall opposite to the first groove wall. The second groove wall is provided with a plurality of second limiting ribs, which are spaced apart along the length direction of the light source groove. The second limiting ribs abut against the light source component.

[0015] In one embodiment, the light guiding structure includes a reflective sheet and a light guiding plate stacked together, with the reflective sheet disposed near the bottom of the assembly groove.

[0016] This utility model also proposes a refrigerator, including a shell and the above-mentioned surface light source assembly, wherein the surface light source assembly is disposed in the shell.

[0017] In one embodiment, the housing has a storage cavity, the top wall of the storage cavity has a mounting groove, and the surface light source assembly is disposed in the mounting groove.

[0018] The technical solution of this utility model involves setting an assembly groove on the back plate, placing the light guide structure inside the assembly groove, and placing the light source component at the edge of the light guide structure. A diffuser plate is then bonded to the back plate, thereby covering the opening of the assembly groove. This avoids the back plate protruding from the light-emitting surface of the diffuser plate. At the same time, the back plate and diffuser plate can be used to limit the displacement of the light guide structure and the light source component, thereby reducing the thickness of the frame used to fasten the light guide structure, the light source component, and the diffuser plate into a whole. This reduces the overall thickness of the surface light source assembly and increases the effective usable volume of the refrigerator's storage compartment.

[0019] Secondly, the back panel and the diffuser plate are bonded together, which increases the sealing of the connection surface between the back panel and the diffuser plate. In addition, the diffuser plate covers the assembly groove, which improves the sealing of the assembly groove, thereby improving the waterproof performance of the surface light source assembly. This allows the surface light source assembly to meet the humid working environment inside the refrigerator. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the structure of an embodiment of the refrigerator provided by this utility model;

[0022] Figure 2 A schematic diagram of the structure of an embodiment of the surface light source assembly provided by this utility model;

[0023] Figure 3 for Figure 2 A cross-sectional view of the provided surface light source assembly;

[0024] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 for Figure 2 An exploded view of the provided surface light source assembly;

[0026] Figure 6 for Figure 5 A magnified view of a section at point B.

[0027] Explanation of icon numbers:

[0028] 10. Surface light source assembly; 20. Housing; 100. Back plate; 110. Assembly groove; 111. Glue groove; 112. Light source groove; 112a. First limiting rib; 112a1. Guide slope; 112b. Second limiting rib; 113. Light guide groove; 200. Light guide structure; 210. Reflector; 220. Light guide plate; 300. Light source component; 400. Diffuser plate.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0031] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] To facilitate viewing and retrieving items inside the refrigerator compartment, surface light source components need to be installed inside. Existing surface light source components have a relatively complex structure, generally requiring a frame to fix the light source, light guide plate, diffuser plate, etc. This results in a thick surface light source component, affecting aesthetics and reducing the effective usable volume of the refrigerator's storage compartment.

[0034] To address the aforementioned problems, this utility model proposes a surface light source assembly 10.

[0035] Please see Figures 1 to 6 In one embodiment of this utility model, the surface light source assembly 10 is used in a refrigerator. The surface light source assembly 10 includes a back plate 100, a light guide structure 200, a light source element 300, and a diffuser plate 400. The back plate 100 is provided with an assembly groove 110. The light guide structure 200 is disposed in the assembly groove 110. The light source element 300 is disposed in the assembly groove 110 and located at the edge of the light guide structure 200. The diffuser plate 400 is bonded to the back plate 100 to cover the opening of the assembly groove 110.

[0036] The technical solution of this utility model involves setting an assembly groove 110 on the back plate 100, placing the light guide structure 200 inside the assembly groove 110, and placing the light source 300 at the edge of the light guide structure 200. A diffuser plate 400 is then bonded to the back plate 100, thereby covering the opening of the assembly groove 110. This avoids the back plate 100 protruding from the light-emitting surface of the diffuser plate 400. At the same time, the back plate 100 and the diffuser plate 400 can be used to limit the displacement of the light guide structure 200 and the light source 300, thereby reducing the thickness of the frame used to fasten the light guide structure 200, the light source 300, and the diffuser plate 400 into a whole. This reduces the overall thickness of the surface light source assembly 10 and increases the effective usable volume of the refrigerator's storage compartment.

[0037] Furthermore, the back panel and diffuser plate are bonded together, which increases the sealing of the connection surface between the back panel and the diffuser plate. In addition, the diffuser plate covers the assembly groove, which improves the sealing of the assembly groove, thereby improving the waterproof performance of the surface light source assembly. This allows the surface light source assembly to meet the humid working environment inside the refrigerator.

[0038] Secondly, this solution places the light source component 300 and the light guide structure 200 inside the assembly groove 110, and uses the diffuser plate 400 to bond with the back plate, thereby covering the groove opening of the assembly groove 110. This installation process is simple and helps to improve the installation efficiency of the surface light source component.

[0039] It should be noted that in this embodiment, the back plate 100, light guide structure 200, light source 300, and diffuser plate 400 are all square in shape. This is because the walls of a refrigerator's storage cavity are generally square. Arranging the back plate 100, light guide structure 200, light source 300, and diffuser plate 400 in a square shape increases the utilization rate of the refrigerator's storage cavity walls and maximizes the light-emitting area of ​​the surface light source assembly. However, this solution is not limited to this. In other embodiments, the back plate 100, light guide structure 200, light source 300, and diffuser plate 400 may also be circular or rhomboid in shape. No specific shape limitations are imposed on the back plate 100, light guide structure 200, light source 300, and diffuser plate 400.

[0040] Optionally, in this embodiment, the diffuser plate 400 is bonded to the top surface of the mounting groove 110 wall. This allows the diffuser plate 400 to cover not only the opening of the mounting groove 110 but also the top surface of the mounting groove 110 wall, making the light-emitting side of the surface light source assembly 10 simpler and achieving a borderless light-emitting side. However, this solution is not limited to this. In the second embodiment, the edge of the diffuser plate 400 can also be bonded to the inner side of the opening of the mounting groove 110, making the light-emitting surface of the diffuser plate 400 flush with the top surface of the mounting groove 110 wall. Again, this solution is not limited to this. In the second embodiment, a recessed groove can be provided at the opening of the mounting groove 110, and the edge of the diffuser plate 400 can be bonded to the recessed groove, making the light-emitting surface of the diffuser plate 400 flush with the top surface of the mounting groove 110 wall.

[0041] Optionally, the top surface of the assembly groove 110 is provided with an adhesive groove 111 for applying adhesive. The diffuser plate 400 is bonded to the top surface of the assembly groove 110 via adhesive. It can be understood that the adhesive groove 111 can guide the adhesive to concentrate in key stress areas, forming a tighter intermolecular bond after curing, preventing the adhesive from weakening due to excessive dispersion. Furthermore, the adhesive groove 111 only needs to be filled with the necessary amount of adhesive, avoiding waste caused by applying adhesive over a large area. The design of the adhesive groove 111 can directionally guide the flow of adhesive, ensuring that the adhesive completely covers the bonding surface and avoiding localized adhesive shortages. The adhesive groove 111 can also hide the adhesive inside, keeping the surface light source assembly 10 clean in appearance. Of course, this solution is not limited to this. In the second embodiment, the adhesive groove 111 may not be provided on the top surface of the assembly groove 110, and the diffuser plate 400 may be directly bonded to the top surface of the assembly groove 110 via adhesive.

[0042] Furthermore, the wall of the glue tank 111 can be geometric (such as serrated or wavy), which can form a mechanical interlock with the glue, enhancing the interfacial adhesion between the wall of the glue tank 111 and the adhesive, thereby making the bond between the diffuser plate 400 and the back plate 100 stronger.

[0043] Furthermore, the adhesive groove 111 is arranged in an annular groove on the top surface of the peripheral sidewall of the assembly groove 110. This increases the adhesive area between the diffuser plate 400 and the back plate 100, thereby increasing the connection stability between the diffuser plate 400 and the back plate 100. Secondly, the annular groove arrangement of the adhesive groove 111 increases the sealing of the connection surface between the back plate 100 and the diffuser plate 400. Moreover, the diffuser plate 400 covers the assembly groove 110, which improves the sealing of the assembly groove 110, thereby improving the waterproof performance of the surface light source assembly 10, and thus enabling the surface light source assembly 10 to meet the requirements of the humid working environment inside the refrigerator. Of course, this solution is not limited to this. In the second embodiment, multiple adhesive grooves 111 are provided, and multiple adhesive grooves 111 are spaced apart on the top surface of the groove wall of the assembly groove 110.

[0044] Optionally, the assembly groove 110 includes a connected light source groove 112 and a light guide groove 113. The light source component 300 is disposed in the light source groove 112 and partially extends into the light guide groove 113. It can be understood that the light source groove 112 is provided corresponding to the light source component 300, and the light guide groove 113 is provided corresponding to the light guide structure 200. This utilizes the light source groove 112 to limit the position of the light source component 300 and the light guide groove 113 to limit the position of the light guide structure 200, thereby increasing the limiting effect of the light source component 300 and the light guide structure 200 and increasing their installation stability. Of course, this solution is not limited to this. In other embodiments, the assembly groove 110 may not be divided into a connected light source groove 112 and a light guide groove 113, but the light guide structure 200 and the light source component 300 may be directly disposed within the assembly groove 110, with the light source component 300 located at the edge of the light guide structure 200.

[0045] Furthermore, the light source slot 112 is located at the bottom of the light guide slot 113 and is positioned close to the side wall of the light guide slot 113. The back plate 100 has a protrusion corresponding to the light source slot 112, which increases the compactness of the surface light source assembly 10 structure. Of course, this solution is not limited to this. In other embodiments, the light source slot 112 can also be located on the side wall of the light guide slot 113.

[0046] It is understandable that the diffuser plate 400 is bonded to the wall of the light guide groove 113 to cover the opening of the light guide groove 113.

[0047] Optionally, the light source component 300 is snapped into the light source slot 112. This snap-fit ​​installation method facilitates the installation and removal of the light source component 300, thus improving the installation efficiency of the surface light source assembly 10. However, this solution is not limited to this; in other embodiments, the light source component 300 can also be screwed into the light source slot 112.

[0048] Furthermore, the light source groove 112 has a first groove wall facing the light-emitting surface of the light source component 300. The first groove wall is provided with a plurality of first limiting ribs 112a, which are spaced apart along the length of the light source groove 112. The first limiting ribs 112a abut against the light source component 300. The arrangement of multiple first limiting ribs 112a can realize multiple contact points to mechanically limit the light source component 300, avoiding slippage or shaking that may be caused by the single groove wall of the light source groove 112 being stuck, especially in dynamic environments such as vibration and impact. Moreover, the first limiting ribs 112a have a certain degree of flexibility. The flexible design of the first limiting ribs 112a (such as elastic materials or micro-gap fit) can compensate for the dimensional tolerances of the light source component 300 and the groove of the light source groove 112, avoiding installation difficulties or loosening caused by processing errors. Even if there is a certain fluctuation in the thickness of the light source component 300, the first limiting ribs 112a can still achieve stable locking through elastic deformation, while the groove wall locking has higher requirements for dimensional consistency. Of course, this solution is not limited to this. In other embodiments, the first limiting rib 112a may not be provided, and the groove wall of the light source groove 112 may be used to directly abut against the light source component 300.

[0049] Furthermore, the light source 300 includes a light source plate and a plurality of lamp beads disposed on the light source plate, with the first limiting rib 112a abutting against the light source plate while avoiding the lamp beads.

[0050] The light source board is partially installed in the light source slot 112 and partially placed in the light guide slot 113. The LED beads are located in the light guide slot 113 and are set in accordance with the light guide structure 200.

[0051] Furthermore, the first limiting rib 112a has a guiding slope 112a1 on the side facing the light guide groove 113. The guiding slope 112a1 gradually slopes towards the bottom of the light source groove 112 in the direction close to the light source component 300, so as to guide the light source component 300 to be inserted into the light source groove 112, thereby increasing the efficiency of the installation of the light source component 300.

[0052] Furthermore, the light source groove 112 has a second groove wall opposite to the first groove wall. The second groove wall is provided with a plurality of second limiting ribs 112b, which are spaced apart along the length of the light source groove 112. The second limiting ribs 112b abut against the light source component 300. Similarly, this allows multiple contact points to mechanically limit the light source component 300, avoiding slippage or shaking that may occur if the light source groove 112 is locked by a single groove wall, especially in dynamic environments such as vibration and impact. Moreover, the second limiting ribs 112b have a certain degree of flexibility. The flexible design of the second limiting ribs 112b (such as elastic materials or micro-gap fit) can compensate for the dimensional tolerances of the light source component 300 and the groove of the light source groove 112, avoiding installation difficulties or loosening caused by processing errors. Even if there is a certain fluctuation in the thickness of the light source component 300, the second limiting ribs 112b can still achieve stable locking through elastic deformation, while the groove wall locking has higher requirements for dimensional consistency. Of course, this solution is not limited to this. In other embodiments, the second limiting rib 112b may not be provided on the second groove wall, and the light source component 300 may be directly abutted on the second groove wall.

[0053] Furthermore, an inclination angle is provided between the light guide groove 113 and the light source groove 112.

[0054] Furthermore, the light guide structure 200 includes a stacked reflector 210 and a light guide plate 220, with the reflector 210 positioned close to the bottom of the mounting groove 110. Specifically, the microstructures (such as dots and prisms) on the back of the light guide plate 220 reflect some light back into the light guide plate 220, while the reflector 210 further reflects unscattered light back into the light guide plate 220, reducing light leakage and energy waste. The light guide structure 200, consisting of the reflector 210 and the light guide plate 220, improves light energy utilization and reduces driving power consumption through a dual reflection mechanism. Moreover, the lower microstructure density at the edge of the light guide plate 220 makes it prone to light leakage; the reflector 210 can intercept and redirect this edge leakage, reducing uneven brightness. The uniform reflection characteristics of the reflector 210, combined with the gradient dot design of the light guide plate 220, balance the brightness difference between the center and the edges, achieving a more uniform surface light source output. Of course, this solution is not limited to this. In other embodiments, the light guide structure 200 may also include only the light guide plate 220.

[0055] This utility model also proposes a refrigerator, which includes a shell 20 and a surface light source assembly 10. The specific structure of the surface light source assembly 10 is as described in the above embodiments. Since this refrigerator adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0056] Optionally, the housing 20 has a storage cavity, and the top wall of the storage cavity has a mounting groove. The surface light source assembly 10 is disposed in the mounting groove. The mounting groove can prevent the surface light source assembly 10 from protruding from the cavity wall of the storage cavity, thereby preventing the surface light source assembly 10 from encroaching on the storage space. Of course, this solution is not limited to this. In other embodiments, the mounting groove can also be provided on the rear wall, left wall, or right wall of the storage cavity, and the surface light source assembly 10 can be disposed in the mounting groove.

[0057] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A surface light source assembly for a refrigerator, characterized by, The application relates to a surface light source assembly. The surface light source assembly comprises a back plate provided with an assembling groove, a light guide structure arranged in the assembling groove, a light source arranged in the assembling groove and located at the edge of the light guide structure, and a diffusion plate bonded with the back plate to cover the opening of the assembling groove. The diffusion plate is bonded with the top surface of the groove wall of the assembling groove. The top surface of the groove wall of the assembling groove is provided with a glue groove for setting glue, and the diffusion plate is bonded with the top surface of the groove wall of the assembling groove through the glue. The assembling groove comprises a light source groove and a light guide groove connected with each other, the light source is arranged in the light source groove and partially extends into the light guide groove. The light source groove has a first groove wall facing the light emitting surface of the light source, and the first groove wall is provided with a plurality of first limiting ribs, the first limiting ribs are arranged at intervals along the length direction of the light source groove, and the first limiting ribs abut against the light source.

2. The surface light source assembly according to claim 1, wherein The side surface of the first limiting rib facing the light guide groove is provided with a guide inclined surface, and the guide inclined surface gradually inclines towards the direction of approaching the groove bottom of the light source groove in the direction close to the light source.

3. The surface light source assembly according to claim 2, wherein The light source groove has a second groove wall opposite to the first groove wall, and the second groove wall is provided with a plurality of second limiting ribs, the second limiting ribs are arranged at intervals along the length direction of the light source groove, and the second limiting ribs abut against the light source.

4. The surface light source assembly according to claim 1, wherein The light guide structure comprises a reflection sheet and a light guide plate arranged in layers, and the reflection sheet is arranged close to the groove bottom of the assembling groove.

5. The surface light source assembly according to claim 4, wherein The application further relates to a housing and the surface light source assembly as claimed in any one of claims 1 to 8, and the surface light source assembly is arranged in the housing.

6. The surface light source assembly according to claim 5, wherein The housing is provided with a storage cavity, the top wall of the storage cavity is provided with a mounting groove, and the surface light source assembly is arranged in the mounting groove.

7. The surface light source assembly according to claim 5, wherein ​ 8. The surface light source assembly according to any one of claims 1 to 7, wherein ​ 9. A refrigerator characterized by comprising: ​ 10. The refrigerator according to claim 9, wherein ​

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