Acrylic LED luminous character structure
Through the design of the thermal conductivity cavity structure and the heat absorption film, the thermal expansion difference between the metal bottom box and the resin panel is solved, and the stability and service life of the luminescent characters are improved.
Patent Information
- Application Number
- CN202422536353.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-21
- Publication Date
- 2025-08-29
- Estimated Expiration
- 2034-10-21
AI Technical Summary
The difference in thermal expansion conditions between the metal bottom box and the resin panel leads to a decrease in coordination, affecting the use effect of luminescent characters.
The thermal cavity structure is adopted, including transparent thermal conduction fluid and black heat-absorbing film, to equalize the temperature difference through heat conduction and heat absorption, and reduce the temperature difference between the installation strip and the installation groove.
It effectively reduces the temperature difference between the resin panel and the metal bottom box, improves the fit, and ensures the stability and service life of the luminescent characters.
Smart Images
Figure CN223284716U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of luminous characters, in particular to an acrylic LED luminous character structure. Background Art
[0002] LED signs are luminous signs that use LEDs as light sources and consist of a base box, a panel, and LED light sources. With their rich colors, personalized designs, and wide range of applications, LED signs have become an indispensable part of the modern advertising industry.
[0003] The material of the bottom box is various and can be metal, resin and other materials. The LED light source will emit heat during operation, causing the temperature of the bottom box and the panel to rise. Since the thermal conductivity and heat dissipation of metal are better than those of resin, there will be a temperature difference between the bottom box and the resin panel at the matching connection, which makes the thermal expansion conditions of the bottom box and the resin panel different, which will affect the compatibility of the bottom box and the resin panel. The purpose of this utility model is to propose a luminous character structure that can solve the above problem. Utility Model Content
[0004] The purpose of the utility model is to provide an acrylic LED luminous character structure to solve the problems mentioned in the background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a resin panel, a metal base box, a mounting strip, a mounting groove and a heat conduction cavity, an LED light source is arranged in the metal base box, the resin panel can be covered at the opening of the metal base box and match the shape of the metal base box opening, the mounting strip is formed on the contact surface between the resin panel and the metal base box, the mounting groove is formed at the opening of the metal base box, the mounting groove is arranged along the circumference of the metal base box opening, the mounting groove is used for applying adhesive and can cooperate with the mounting strip, the heat conduction cavity is located on the inner side of the metal base box and below the mounting groove, the heat conduction cavity is filled with heat conduction liquid and the heat conduction cavity surrounds the side of the mounting groove and the side of the mounting strip.
[0006] In order to optimize the above technical solution, further measures are taken: the heat conduction cavity is transparent and made of transparent material, which helps light to enter the heat conduction cavity and illuminate the heat conduction liquid, the installation groove and the installation strip.
[0007] As a further improvement to the above technical solution: it also includes a black heat-absorbing film, which is connected to the bottom surface of the heat-conducting cavity. Adjacent black heat-absorbing films are arranged at intervals. The purpose of arranging the black heat-absorbing films is to absorb heat.
[0008] As a further improvement of the technical solution: the bottom surface inside the heat conduction cavity is serrated. The purpose of the serrated design is to use the serrated structure to produce diffuse reflection and avoid blind spots of light exposure.
[0009] As an improvement to the above technical solution: the top of the heat conduction cavity is in contact with the resin panel. Such a design of the heat conduction cavity can not only support the resin panel, but also transfer heat to the resin panel through contact, thereby reducing the temperature difference between the resin panel and the metal base box.
[0010] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages:
[0011] The utility model provides an acrylic LED luminous character structure, which absorbs the heat emitted by the LED light source based on a heat conduction cavity, so that the heat conduction cavity heats the mounting strip and the mounting groove through heat conduction, thereby reducing the temperature difference and avoiding a large temperature difference between the mounting strip and the mounting groove, which leads to a decrease in the compatibility of the mounting strip and the mounting groove and affects the compatibility between the resin panel and the metal base box. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:
[0013] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;
[0014] Figure 2 This is a schematic diagram of a partial cross-section structure of the utility model;
[0015] Figure 3 for Figure 2 Partial enlarged view;
[0016] In the picture: Resin panel 1, metal bottom box 2, LED light source 201, mounting strip 3, mounting slot 4, thermal cavity 5, thermal fluid 501, black heat-absorbing film 6 DETAILED DESCRIPTION
[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0018] Example
[0019] See also Figure 1-3The utility model provides an acrylic LED luminous character structure, including a resin panel 1, a metal base box 2, a mounting bar 3, a mounting groove 4, a heat conduction cavity 5, and a black heat-absorbing film 6. An LED light source 201 is arranged in the metal base box 2. The resin panel 1 can be covered at the opening of the metal base box 2 and match the shape of the opening of the metal base box 2. The resin panel 1 is specifically made of acrylic material.
[0020] The mounting strip 3 is formed on the contact surface between the resin panel 1 and the metal bottom box 2 .
[0021] The mounting groove 4 is formed at the opening of the metal bottom box 2 . The mounting groove 4 is arranged along the circumference of the opening of the metal bottom box 2 . The mounting groove 4 is used for applying adhesive and can cooperate with the mounting strip 3 .
[0022] The heat conduction cavity 5 is located on the inner side of the metal base box 2 and below the mounting groove 4. The heat conduction cavity 5 is transparent and made of a transparent material such as acrylic. The bottom surface of the heat conduction cavity 5 is serrated. The top of the heat conduction cavity 5 is in contact with the resin panel 1. The heat conduction cavity 5 is filled with heat conduction liquid 501 and the heat conduction cavity 5 surrounds the side of the mounting groove 4 and the side of the mounting bar 3. The heat conduction liquid 501 refers to a liquid that can conduct heat. In implementation, pure water is specifically used. In addition, a sealing cover can be opened on the side of the metal base box 2 to communicate with the heat conduction cavity 5 for adding heat conduction liquid 501 into the heat conduction cavity 5.
[0023] The black heat-absorbing film 6 is connected to the bottom surface of the heat-conducting cavity 5, and adjacent black heat-absorbing films 6 are arranged at intervals. The black heat-absorbing film 6 refers to a strip-shaped film with a black surface that acts as a heat absorber. The purpose of its arrangement is to improve the heat absorption of the heat-conducting cavity 5 by the LED light source 201. The specific material used is not the technical content that the applicant wants to protect. Whether it is disclosed or not will not affect the technical personnel's implementation of the technical solution, so there is no need to further explain it.
[0024] Working principle: Apply adhesive to the installation groove 4 and then place the resin panel 1 on the opening of the metal base box 2, so that the installation strip 3 rests against the installation groove 4. After waiting for the adhesive to dry, the installation of the resin panel 1 and the metal base box 2 is completed.
[0025] The heat-conducting cavity 5 supports the bottom surface of the resin panel 1, preventing the connection between the resin panel 1 and the metal bottom box 2 from collapsing. Furthermore, the heat-conducting cavity 5, located between the LED light source 201 and the mounting bar 3 and mounting slot 4, can first absorb the heat generated by the LED light source 201 and increase its temperature. The heat-conducting cavity 5 then transfers the heat to the mounting bar 3 and mounting slot 4 through contact, helping to reduce the temperature difference between the mounting bar 3 and mounting slot 4.
[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. An acrylic LED luminous character structure, characterized in that: include: Resin panel (1); A metal bottom box (2), wherein an LED light source (201) is provided in the metal bottom box (2), and the resin panel (1) can be covered at the opening of the metal bottom box (2) and matched with the shape of the opening of the metal bottom box (2); A mounting strip (3), the mounting strip (3) being formed on the contact surface between the resin panel (1) and the metal bottom box (2); A mounting groove (4), the mounting groove (4) is formed at the opening of the metal bottom box (2), the mounting groove (4) is arranged along the circumference of the opening of the metal bottom box (2), and the mounting groove (4) is used for applying adhesive and can cooperate with the mounting strip (3); The heat conduction cavity (5) is located inside the metal bottom box (2) and below the mounting groove (4). The heat conduction cavity (5) is filled with heat conduction liquid (501) and surrounds the side of the mounting groove (4) and the side of the mounting strip (3).
2. The acrylic LED luminous character structure according to claim 1, characterized in that: The heat conduction cavity (5) is transparent and made of transparent material.
3. The acrylic LED luminous character structure according to claim 2, characterized in that: It also includes a black heat-absorbing film (6), which is connected to the bottom surface of the heat-conducting cavity (5), and adjacent black heat-absorbing films (6) are arranged at intervals.
4. The acrylic LED luminous character structure according to claim 2, characterized in that: The inner bottom surface of the heat conduction cavity (5) is serrated.
5. An acrylic LED luminous character structure according to any one of claims 1 to 4, characterized in that: The top of the heat conduction cavity (5) is in contact with the resin panel (1).