Frame type air duct assembly of composite area light source

Abstract

The utility model discloses a frame type air duct assembly of a composite area light source, which comprises an injection molding air duct frame and an area light source assembly fixedly arranged in the injection molding air duct frame, the area light source assembly comprises a diffusion plate, a light guide plate and a reflecting plate which are sequentially arranged from front to back, and a light bar is further arranged on the inner side wall of the injection molding air duct frame. And the light bar directly faces the light guide plate. According to the frame type air duct assembly of the composite area light source, the light guide plate, the diffusion plate and the reflecting plate in the area light source assembly are directly assembled with the injection molding air duct frame, the light guide plate, the diffusion plate and the reflecting plate are fixed in the injection molding air duct frame in a dispensing mode, and therefore sealing performance can be guaranteed, and the service life of the light guide plate is prolonged. And moreover, the assembly process flow of the air duct assembly can be effectively simplified, the assembly process is simple, and the production cost can be effectively reduced due to the fact that the subsequent mechanical assembly process is reduced and the injection molding air duct is arranged to be of a frame type structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of household appliance accessories, and in particular relates to a frame-type air duct component of a composite surface light source. Background Art

[0002] The air duct component is formed by assembling the surface light source component and the injection molded air duct, and the surface light source component is formed by bonding the diffusion plate, the light guide plate and the reflection plate in sequence.

[0003] The surface light source assembly generally includes a light guide plate, a diffuser plate and a reflector plate. After the diffuser plate and the reflector plate are equally pasted on both sides of the light guide plate, the surface light source assembly is formed, and then the surface light source assembly is assembled into the injection molded air duct. The light guide plate, the diffuser plate and the reflector plate are pasted layer by layer, which has many processes and complicated operations. In addition, in the later assembly process of the surface light source assembly and the injection molded air duct, mechanical connection is required for installation, which is a complicated process. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned problems existing in the prior art and to provide a frame-type air duct assembly of a composite surface light source. The light guide plate, diffuser plate and reflector plate in the surface light source assembly are directly assembled with the injection molded air duct frame, and the light guide plate, diffuser plate and reflector plate are fixed in the injection molded air duct frame by means of glue dispensing, which not only ensures the sealing performance, but also effectively simplifies the assembly process of the air duct assembly. The assembly process is simple, and since the subsequent mechanical assembly process is reduced and the injection molded air duct is set as a frame structure, the production cost can be effectively reduced.

[0005] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0006] A frame-type air duct assembly of a composite surface light source, comprising an injection-molded air duct frame and a surface light source assembly fixedly installed in the injection-molded air duct frame, wherein the surface light source assembly comprises a diffusion plate, a light guide plate and a reflection plate arranged in sequence from front to back, and a light bar is further arranged on the inner side wall of the injection-molded air duct frame, and the light bar is directly opposite to the light guide plate;

[0007] A stepped groove is provided at the inner edge of the rear side surface of the injection molded air duct frame, and the stepped groove includes a mounting groove 1 and a mounting groove 2 which are connected to each other, the mounting groove 1 is located on the inner side of the mounting groove 2, the depth of the mounting groove 1 is greater than the depth of the mounting groove 2, and a gluing groove 1 for accommodating glue is provided in the mounting groove 1, and the diffuser plate is gluingly connected to the mounting groove 1 by the glue in the gluing groove 1;

[0008] The second installation groove is provided with a second glue groove for containing glue, and the light guide plate is glued and connected to the second installation groove by the glue in the second glue groove;

[0009] A gluing platform for accommodating glue is provided at the outer edge of the rear side of the injection molded air duct frame, and the reflector is gluingly connected to the injection molded air duct frame by the glue in the gluing platform;

[0010] A plurality of glue guiding grooves are also provided at the outer edge of the rear side surface of the injection molding air duct frame, and the glue guiding grooves are respectively connected with the second glue applying groove and the glue applying platform.

[0011] Furthermore, a light bar accommodating groove is provided on the inner side wall of the injection molded air duct frame, and the light bar is fixedly installed in the light bar accommodating groove.

[0012] Furthermore, an elastic member is installed on the inner side wall of the injection-molded air duct frame, and the other end of the elastic member is in close contact with the light guide plate;

[0013] The light guide plate is located between the elastic member and the light bar;

[0014] Furthermore, the elastic member is a spring or an elastic object.

[0015] Furthermore, anti-overflow bosses are provided on both sides of the glue-spraying platform.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a frame-type air duct assembly of a composite surface light source, which directly assembles the light guide plate, the diffuser plate and the reflector plate in the surface light source assembly with the injection molded air duct frame, which can effectively simplify the assembly process of the air duct assembly and the assembly process is simple.

[0018] 2. The utility model provides a stepped groove on the frame-type air duct assembly to accommodate the diffuser plate and the light guide plate layer by layer; the stepped groove includes an installation groove one and an installation groove two, a gluing groove one is provided in the installation groove one, and a gluing groove two is provided in the installation groove two, so that the diffuser plate and the light guide plate can be glued to the installation groove one and the installation groove two respectively; finally, the reflector plate is glued to the injection molded air duct frame through the gluing platform; thus, the light guide plate, the diffuser plate and the reflector plate are fixed respectively by gluing, and the three are fixed to the injection molded air duct frame, which not only ensures the sealing performance among the three, ensures the long-lasting and stable sealing effect, but also effectively simplifies the process flow, and there is no need to reassemble the surface light source assembly and the injection molded air duct frame. Moreover, compared with the traditional mechanical assembly, this arrangement can effectively improve the production efficiency, and the stability of the manufactured frame-type air duct assembly is also further improved.

[0019] 3. The utility model reduces the subsequent mechanical assembly process and sets the injection molded air duct into a frame structure, thereby effectively reducing the production cost and reducing the weight of the frame air duct assembly, which is suitable for the existing requirements for lightweight products. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 This is a structural exploded diagram of the frame-type air duct assembly provided by the utility model;

[0022] Figure 2 This is a structural side view of the frame-type air duct assembly provided by the utility model;

[0023] Figure 3 It is an enlarged view of the structure at A provided by the utility model;

[0024] Figure 4 This is a right side view of the structure of the frame-type air duct assembly provided by the utility model;

[0025] Figure 5 It is an enlarged view of the structure at location B provided by the utility model.

[0026] Among them, the figure markings are: 1. injection molding air duct frame; 10. surface light source assembly; 2. light strip; 3. diffusion plate; 4. light guide plate; 5. reflection plate; 11. installation slot one; 12. installation slot two; 13. glue slot one; 14. glue slot two; 15. glue platform; 16. glue guide slot; 17. elastic part; 141. anti-overflow boss. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] In the description of the present invention, it should be understood that terms such as "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] like Figure 1 As shown, a frame-type air duct assembly of a composite surface light source includes:

[0030] An injection molded air duct frame 1 and a surface light source assembly 10, wherein the surface light source assembly 10 comprises a diffuser plate 3, a light guide plate 4 and a reflector plate 5 arranged in sequence from front to back, the diffuser plate 3, the light guide plate 4 and the reflector plate 5 are all arranged in the injection molded air duct frame 1, and the traditional plate-type injection molded air duct is designed as the injection molded air duct frame 1, that is, the injection molded air duct frame 1 is a frame-type structure, which reduces the cost, and then the diffuser plate 3, the light guide plate 4 and the reflector plate 5 are sequentially assembled into the injection molded air duct frame 1 from the rear of the injection molded air duct frame 1, wherein the diffuser plate 3 can be used as the appearance surface of the frame-type air duct assembly;

[0031] A light bar 2 is also provided in the injection molded air duct frame 1. Specifically, a light bar receiving groove is provided on the inner side wall of the injection molded air duct frame 1. The light bar 2 is fixedly installed in the light bar receiving groove, wherein the light bar 2 faces the light guide plate 4.

[0032] like Figures 2 to 3 As shown, a stepped groove is provided at the inner edge of the rear side of the injection molded air duct frame 1, and the stepped groove includes a mounting groove 11 and a mounting groove 2 12 which are connected to each other;

[0033] Among them, the installation groove 11 is located on the inner side of the installation groove 2 12, the depth of the installation groove 11 is greater than the depth of the installation groove 2 12, a glue groove 13 for accommodating glue is provided in the installation groove 11, a glue groove 2 14 for accommodating glue is provided in the installation groove 2 12, a glue platform 15 for accommodating glue is provided at the outer edge of the rear side of the injection molding air duct frame 1, and a plurality of glue guide grooves 16 are also provided at the outer edge of the rear side of the injection molding air duct frame 1, and the glue guide grooves 16 are respectively connected with the glue groove 2 14 and the glue platform 15;

[0034] With this arrangement, during the assembly process, the diffuser plate 3 is first laid flat in the installation groove 11, and glue is dispensed in the glue groove 13, so that the diffuser plate 3 is glued and connected to the installation groove 11 by the glue in the glue groove 13;

[0035] Then put the light guide plate 4 into the second installation groove 12, that is, one side of the diffuser plate 3 is glued into the first installation groove 11, and the other side of the diffuser plate 3 is flatly paved with the light guide plate 4; finally, lay the reflector plate 5 flatly on the side of the injection molded air duct frame 1 with the stepped groove, and glue is dispensed in the glue platform 15. Due to the fluidity of the glue, the glue flows into the second glue groove 14 through the glue guide groove 16, and the light guide plate 4 is glued and connected to the second installation groove 12 through the glue in the second glue groove 14, and the reflector plate 5 is glued and connected to the injection molded air duct frame 1 through the glue in the glue platform 15;

[0036] Wherein, both sides of the glue-spraying platform 15 are provided with anti-overflow bosses 151, and the anti-overflow bosses 151 are used to prevent the glue in the glue-spraying platform 15 from overflowing;

[0037] like Figures 4 to 5As shown, an elastic member 17 is installed on the inner side wall of the injection molded air duct frame 1, and the other end of the elastic member 17 is in close contact with the light guide plate 4; wherein the elastic member 17 is a spring or an elastic object, and the elastic object is any one of a metal elastic sheet or a plastic elastic sheet;

[0038] The light guide plate 4 is located between the elastic member 17 and the light bar 2;

[0039] An elastic member 17 is provided to move the light guide plate 4 toward one side of the light bar 2 under the elastic thrust of the elastic member 17 when the light guide plate 4 is assembled, so as to eliminate the gap between the light guide plate 4 and the light bar 2 .

[0040] The utility model provides a frame-type air duct assembly of a composite surface light source, in which a light guide plate, a diffuser plate and a reflector plate in the surface light source assembly are directly assembled with an injection-molded air duct frame, and the light guide plate, the diffuser plate and the reflector plate are fixed in the injection-molded air duct frame by means of glue dispensing, which not only ensures the sealing performance, but also effectively simplifies the assembly process of the air duct assembly. The assembly process is simple, and since the subsequent mechanical assembly process is reduced and the injection-molded air duct is set as a frame structure, the production cost can be effectively reduced.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A frame-type air duct assembly for a composite surface light source, characterized in that: It comprises an injection molded air duct frame (1) and a surface light source assembly (10) fixedly mounted in the injection molded air duct frame (1), wherein the surface light source assembly (10) comprises a diffusion plate (3), a light guide plate (4) and a reflection plate (5) arranged in sequence from front to back, and a light bar (2) is also arranged on the inner side wall of the injection molded air duct frame (1), and the light bar (2) is directly opposite to the light guide plate (4); A stepped groove is provided at the inner edge of the rear side surface of the injection molded air duct frame (1), the stepped groove comprising a mounting groove 1 (11) and a mounting groove 2 (12) which are connected to each other, the mounting groove 1 (11) is located on the inner side of the mounting groove 2 (12), the depth of the mounting groove 1 (11) is greater than the depth of the mounting groove 2 (12), a gluing groove 1 (13) for accommodating glue is provided in the mounting groove 1 (11), and the diffuser plate (3) is gluingly connected to the mounting groove 1 (11) by the glue in the gluing groove 1 (13); The second installation groove (12) is provided with a second glue groove (14) for containing glue, and the light guide plate (4) is glued and connected to the second installation groove (12) by the glue in the second glue groove (14); A gluing platform (15) for accommodating glue is provided at the outer edge of the rear side of the injection molded air duct frame (1), and the reflector (5) is gluingly connected to the injection molded air duct frame (1) by means of the glue in the gluing platform (15); A plurality of glue guide grooves (16) are also provided at the outer edge of the rear side surface of the injection molded air duct frame (1), and the glue guide grooves (16) are respectively connected to the second glue groove (14) and the glue platform (15).

2. The frame-type air duct assembly of the composite surface light source according to claim 1, characterized in that: A light bar accommodating groove is provided on the inner side wall of the injection molded air duct frame (1), and the light bar (2) is fixedly installed in the light bar accommodating groove.

3. The frame-type air duct assembly of the composite surface light source according to claim 1, characterized in that: An elastic member (17) is installed on the inner side wall of the injection molded air duct frame (1), and the other end of the elastic member (17) is in close contact with the light guide plate (4); The light guide plate (4) is located between the elastic member (17) and the light bar (2).

4. The frame-type air duct assembly of the composite surface light source according to claim 3, characterized in that: The elastic member (17) is a spring.

5. The frame-type air duct assembly of the composite surface light source according to claim 1, characterized in that: Anti-overflow bosses (151) are provided on both sides of the glue application platform (15).

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