High-heat-dissipation flip type LED lamp box

Abstract

The utility model relates to the technical field of lamp boxes, in particular to a high-heat-dissipation flip type LED lamp box which comprises a base and a panel rotationally arranged on the base, the base is connected with a wall, a plurality of LED lamp tubes are arranged on the base, an advertisement poster is arranged on the panel, and a heat dissipation device is arranged on the base. According to the LED lamp tube, the heat dissipation pipe is installed on the base, heat generated when the LED lamp tube works is transmitted to the heat dissipation pipe through the base, and the phase-change cooling liquid in the heat dissipation pipe conducts heat exchange on the heat dissipation pipe. Therefore, heat continuously generated when the LED lamp tube on the base works is continuously dissipated, the temperature of the LED lamp tube on the base in the working environment is reduced, and the service life of the LED lamp tube is prolonged.

Description

Technical Field

[0001] The present application relates to the technical field of light boxes, and in particular to a high-heat-dissipation flip-type LED light box. Background Art

[0002] The LED light box industry mainly involves outdoor and indoor advertising display technologies. It uses LED light sources to provide efficient and energy-saving lighting solutions to enhance the visual appeal of advertising content.

[0003] In the related art, reference can be made to the Chinese invention patent with the authorization announcement number CN102339573A, which discloses an LED light box and belongs to a lighting advertisement device. It aims to provide an advertisement light box with low power consumption, long service life, rich layering, and good advertisement effect. It includes a box body, a light-transmitting panel fixed on the front of the box body, an advertisement film fixed on the back of the panel, and a background light arranged in the box body. The background light is a plurality of LED lights arranged along the box wall at the bottom of the box body. At least one light-transmitting plate that coincides with the contour of the pattern or text on the advertisement film is arranged in the box body at the position corresponding to the pattern or text on the advertisement film. A light-shielding film is arranged on the contour edge of the light-transmitting plate, and a plurality of LED lights are arranged on the back of the light-transmitting plate.

[0004] During the actual use of the above light box, since the box body is hermetically arranged, and the LED lights located in the box body will generate a large amount of heat after long-term operation, these heats are difficult to dissipate in the sealed box body. Therefore, the LED lights in the box body are in a high-temperature environment for a long time, which is not conducive to the long-term operation of the LED lights and reduces the service life of the LED lights. Utility Model Content

[0005] In order to improve the heat dissipation effect of the light box, the present application provides a high-heat-dissipation flip-type LED light box.

[0006] The high-heat-dissipation flip-type LED light box provided by the present application adopts the following technical solutions:

[0007] A high-heat-dissipation flip-type LED light box includes a base and a panel rotatably arranged on the base. The base is connected to a wall body. A plurality of LED tubes are arranged on the base. An advertising poster is placed on the panel. A heat dissipation device is arranged on the base. The heat dissipation device is used to dissipate heat from the base. The heat dissipation device includes:

[0008] A heat dissipation pipe, which is arranged on the base. One end of the heat dissipation pipe is located on the side wall of the base where the LED tube is connected to the base, and the other end of the heat dissipation pipe extends above the base;

[0009] A phase-change coolant, which is filled in the heat dissipation pipe. The phase-change coolant evaporates at the bottom end of the heat dissipation pipe, and the evaporated phase-change coolant condenses at the top end of the heat dissipation pipe;

[0010] A porous sintered wall, which is arranged on the inner side wall of the heat dissipation tube.

[0011] By adopting the above technical solution, a heat dissipation tube is installed on the base. When the LED lamp tube works, the heat generated is transferred from the base to the heat dissipation tube. The phase-change coolant at one end where the heat dissipation tube is connected to the base absorbs the heat of the base and evaporates. The evaporated phase-change coolant moves to the top of the heat dissipation tube. Since the top of the heat dissipation tube extends above the base, its temperature is relatively low, and the phase-change coolant condenses at the top of the heat dissipation tube. At the same time, because a porous sintered wall is arranged on the inner wall of the heat dissipation tube, the porous sintered wall at the bottom of the heat dissipation tube is in a relatively dry state due to the evaporation of the phase-change coolant, while the porous sintered wall at the top of the heat dissipation tube is in a wet state due to the condensation of the phase-change coolant. Then the phase-change coolant in the porous sintered wall will flow from the wet top to the dry bottom, so that the phase-change coolant continuously exchanges heat with the bottom of the heat dissipation tube, completing the continuous heat dissipation work for the heat constantly generated when the LED lamp tube on the base works, reducing the temperature in the working environment of the LED lamp tube on the base, and increasing the service life of the LED lamp tube.

[0012] Optionally, heat dissipation holes are formed in the base, a heat conducting plate is arranged on the base, the heat conducting plate is inserted into the heat dissipation holes, the heat conducting plate is made of copper material, and the LED lamp tube and the heat dissipation tube are respectively located on both sides of the heat conducting plate.

[0013] By adopting the above technical solution, heat dissipation holes are formed in the base, and the heat conducting plate is installed through the heat dissipation holes, guiding the heat generated by the LED lamp tube to the heat dissipation tube through the heat conducting plate, thereby improving the heat dissipation efficiency of the base.

[0014] Optionally, a limiting mechanism is arranged on the base, and the limiting mechanism is used for limiting the position of the heat conducting plate in the heat dissipation holes. The limiting mechanism includes:

[0015] A limiting plate, which is arranged on the inner side wall of the heat dissipation hole of the base;

[0016] A limiting block, a horizontal sliding hole is formed in the inner side wall of the heat dissipation hole of the base, and the limiting block is slidably installed on the sliding hole;

[0017] A limiting spring, which is arranged on the inner bottom wall of the sliding hole and connected to the limiting block. The limiting block partially extends out of the sliding hole under the action of the limiting spring and cooperates with the limiting plate to clamp the heat conducting plate.

[0018] By adopting the above technical solution, the movable limiting block compresses the limiting spring and moves, causing the whole limiting block to enter the sliding hole. Then, the heat conducting plate is moved into the heat dissipation hole and abuts against the limiting plate. After the heat conducting plate abuts against the limiting plate, the limiting block is released. Under the action of the limiting spring, a part of the limiting block extends out of the sliding hole and cooperates with the limiting plate to clamp the heat conducting plate, thus completing the fixed installation of the heat conducting plate in the heat dissipation hole.

[0019] Optionally, an arc-shaped guiding surface is provided on the side wall of one end of the limiting block extending out of the sliding hole and away from the limiting plate.

[0020] By adopting the above technical solution, an arc-shaped guiding surface is provided on the side wall of one end of the limiting block extending out of the sliding hole and away from the limiting plate. When the heat conducting plate is to be moved into the heat dissipation hole, the heat conducting plate will first contact the guiding surface, and the guiding surface will generate a component force that drives the limiting block into the sliding hole. Thus, it is not necessary to manually squeeze the limiting block into the sliding hole before installing the heat conducting plate, simplifying the installation steps, reducing the working intensity, and improving the working efficiency.

[0021] Optionally, ventilation holes communicating with the inside of the base are uniformly arranged on the upper surface of the base, and convection holes communicating with the inside of the base are uniformly arranged on the lower surface of the base.

[0022] By adopting the above technical solution, ventilation holes and convection holes are respectively provided on the upper surface and the lower surface of the base. Since hot air expands when heated and has a smaller density and will rise, the heat generated by the LED lamp tube flows out from the heat dissipation hole along with the flow of hot air, while the outside cold air flows into the base from the convection holes at the bottom of the base, thereby improving the heat dissipation efficiency of the base.

[0023] Optionally, an installation frame is provided at one end of the heat dissipation tube extending above the base, and installation holes are provided on the outer side wall of the installation frame. The advertising board is inserted into the installation frame through the installation holes.

[0024] By adopting the above technical solution, an installation frame is installed at the top end of the heat dissipation tube, and the advertising board is inserted into the installation frame. Thus, the end of the heat dissipation tube extending above the base is blocked by the advertising board, expanding the advertising area and improving the overall appearance of the light box at the same time.

[0025] Optionally, a connecting collar is provided on the outer side wall of the installation frame, and the connecting collar is sleeved on the heat dissipation tube.

[0026] By adopting the above technical solution, a connecting collar is installed on the outer side wall of the installation frame. The fixing of the installation frame on the heat dissipation tube can be completed by sleeving the connecting collar on the heat dissipation tube. When the installation frame needs to be removed, move the connecting collar upward to disengage it from the heat dissipation tube. The structure is simple, the installation and disassembly work is convenient and fast, and the working efficiency is high.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. By installing a heat dissipation tube on the base, the heat generated when the LED lamp tube works is transferred from the base to the heat dissipation tube. The phase-changing coolant at one end where the heat dissipation tube is connected to the base absorbs the heat of the base and evaporates. The evaporated phase-changing coolant moves to the top of the heat dissipation tube. Since the top of the heat dissipation tube extends above the base, the temperature is relatively low, and the phase-changing coolant condenses at the top of the heat dissipation tube. At the same time, due to the porous sintered wall provided on the inner wall of the heat dissipation tube, the porous sintered wall at the bottom of the heat dissipation tube is in a relatively dry state due to the evaporation of the phase-changing coolant, while the porous sintered wall at the top of the heat dissipation tube is in a wet state due to the condensation of the phase-changing coolant. Thus, the phase-changing coolant in the porous sintered wall will flow from the wet top to the dry bottom, so that the phase-changing coolant continuously exchanges heat with the bottom of the heat dissipation tube, completing the continuous heat dissipation work for the heat constantly generated when the LED lamp tube on the base works, reducing the temperature in the working environment of the LED lamp tube on the base, and improving the service life of the LED lamp tube;

[0029] 2. By respectively opening air exchange holes and convection holes on the upper surface and the lower surface of the base, since hot air expands when heated and has a smaller density and will rise, the heat generated when the LED lamp tube works flows out from the heat dissipation holes along with the flow of hot air, while the outside cold air flows into the base from the convection holes at the bottom of the base, thereby improving the heat dissipation efficiency of the base;

[0030] 3. By installing a connecting collar on the outer side wall of the installation frame, the fixing work of the installation frame on the heat dissipation tube can be completed by sleeving the connecting collar on the heat dissipation tube. When the installation frame needs to be removed, moving the connecting collar upward to disengage from the heat dissipation tube can achieve this. The structure is simple, the installation and disassembly work is convenient and fast, and the work efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a three-dimensional structural schematic diagram of the present application;

[0032] Figure 2 is a structural schematic diagram of the heat dissipation device in the present application;

[0033] Figure 3 is a structural schematic diagram of the limiting mechanism in the present application, in which the side walls of the base and the heat dissipation tube are sectioned.

[0034] Reference numerals: 1, base; 11, panel; 12, LED lamp tube; 13, heat dissipation holes; 14, heat conduction plate; 15, air exchange holes; 16, convection holes; 17, mounting frame; 18, connecting collar; 19, mounting holes; 2, heat dissipation device; 21, heat dissipation tube; 22, porous sintered wall; 3, limiting mechanism; 31, limiting plate; 32, limiting block; 33, limiting spring; 34, sliding hole; 35, guiding surface. Detailed implementation manners

[0035] The following further elaborates on this application in conjunction with the Figure 1 - attached Figure 3 drawings for a more detailed description.

[0036] An embodiment of this application discloses a highly heat - dissipating flip - type LED light box.

[0037] Referring to Figure 1 and Figure 2 , the highly heat - dissipating flip - type LED light box includes a base 1 and a panel 11 rotatably mounted on the base 1, and the base 1 is fixedly connected to a wall. A number of LED lamp tubes 12 are installed on the base 1, and an advertising poster is placed on the panel 11. A heat dissipation device 2 is provided on the base 1, and the heat dissipation device 2 is used to dissipate heat from the base 1.

[0038] Referring to Figure 2 and Figure 3 , the heat dissipation device 2 includes a heat dissipation tube 21, a phase - change coolant, and a porous sintered wall 22. The heat dissipation tube 21 is fixedly connected to the outer side wall of the base 1 close to the wall. The bottom end of the heat dissipation tube 21 is fixedly connected to the base 1, and the top end of the heat dissipation tube 21 extends vertically upward above the base 1. The phase - change coolant is filled in the heat dissipation tube 21. The porous sintered walls 22 are evenly laid on the inner wall of the heat dissipation tube 21.

[0039] Referring to Figure 1 and Figure 3 , when the LED lamp tube 12 is working, the heat generated is transferred from the base 1 to the heat dissipation tube 21. The phase - change coolant at the end of the heat dissipation tube 21 connected to the base 1 absorbs the heat of the base 1 and evaporates, and the evaporated phase - change coolant moves to the top end of the heat dissipation tube 21. Since the top end of the heat dissipation tube 21 extends above the base 1, its temperature is relatively low, and the phase - change coolant condenses at the top end of the heat dissipation tube 21.

[0040] Referring to Figure 1 and Figure 3, and at the same time, since the porous sintered wall 22 is provided on the inner wall of the heat dissipation tube 21, the porous sintered wall 22 at the bottom end of the heat dissipation tube 21 is in a relatively dry state due to the evaporation of the phase-change coolant, while the porous sintered wall 22 at the top end of the heat dissipation tube 21 is in a wet state due to the condensation of the phase-change coolant. Thus, the phase-change coolant in the porous sintered wall 22 will flow from the wet top end to the dry bottom end, so that the phase-change coolant continuously exchanges heat with the bottom end of the heat dissipation tube 21, completing the work of continuously dissipating the heat generated during the operation of the LED lamp tube 12 on the base 1, reducing the temperature in the working environment of the LED lamp tube 12 on the base 1, and increasing the service life of the LED lamp tube 12.

[0041] Refer to Figure 1 and Figure 3 , a heat dissipation hole 13 horizontally penetrating the side wall of the base 1 is provided on the side wall of the base 1 where it is connected to the heat dissipation tube 21. A heat conduction plate 14 is installed on the base 1, and the heat conduction plate 14 is located in the heat dissipation hole 13. The heat conduction plate 14 is made of copper material. The heat dissipation plate is fixedly installed on the side wall of the heat conduction plate 14 close to the wall. The LED lamp tube 12 and the heat dissipation tube 21 are respectively located on both sides of the heat conduction plate 14.

[0042] Refer to Figure 2 and Figure 3 , a limiting mechanism 3 is provided on the base 1, and the limiting mechanism 3 is used to limit the position of the heat conduction plate 14 in the heat dissipation hole 13. The limiting mechanism 3 includes a limiting plate 31, a limiting block 32 and a limiting spring 33. The limiting plate 31 is fixedly installed on the inner side wall of the heat dissipation hole 13 of the base 1. A horizontal sliding hole 34 is provided on the inner side wall of the heat dissipation hole 13 on the side of the limiting plate 31 close to the wall. The limiting block 32 is slidably installed on the sliding hole 34. The limiting spring 33 is fixedly installed on the inner bottom wall of the sliding hole 34 and is fixedly connected to the limiting block 32. The limiting block 32 is partially extended out of the sliding hole 34 under the action of the limiting spring 33 and cooperates with the limiting plate 31 to clamp and limit the heat conduction plate 14. An arc-shaped guiding surface 35 is provided on the side wall of one end of the limiting block 32 extending out of the sliding hole 34 away from the limiting plate 31.

[0043] Refer to Figure 1 , ventilation holes 15 communicating with the inside of the base 1 are uniformly provided on the upper surface of the base 1, and convection holes 16 communicating with the inside of the base 1 are uniformly provided on the lower surface of the base 1. Since hot air expands when heated and has a smaller density and will rise, the heat generated by the operation of the LED lamp tube 12 flows out from the ventilation holes 15 along with the flow of hot air, while the cold air from the outside flows into the base 1 through the convection holes 16 at the bottom of the base 1, thereby improving the heat dissipation efficiency of the base 1.

[0044] Refer to Figure 1 and Figure 3, an installation frame 17 is provided at one end of the heat dissipation pipe 21 extending above the base 1. A connecting collar 18 is fixedly installed on the outer side wall of the installation frame 17 close to the wall. The connecting collar 18 is sleeved on the heat dissipation pipe 21. A horizontal installation hole 19 is formed in the outer side wall of the installation frame 17, and the installation hole 19 communicates the inside and outside of the installation frame 17. The advertising board can be inserted into the installation frame 17 through the installation hole 19. The advertising board inserted into the installation frame 17 blocks one end of the heat dissipation pipe 21 extending above the base 1, expanding the advertising area and improving the overall appearance of the light box at the same time.

[0045] The working principle of the embodiment of the present application is as follows:

[0046] The heat dissipation pipe 21 is installed on the base 1. The heat generated when the LED lamp tube 12 works is transferred to the heat dissipation pipe 21 through the base 1. The phase-changing coolant at one end where the heat dissipation pipe 21 is connected to the base 1 absorbs the heat of the base 1 and evaporates. The evaporated phase-changing coolant moves to the top end of the heat dissipation pipe 21. Since the top end of the heat dissipation pipe 21 extends above the base 1, the temperature is relatively low, and the phase-changing coolant condenses at the top end of the heat dissipation pipe 21. At the same time, since the porous sintered wall 22 is provided on the inner wall of the heat dissipation pipe 21, the porous sintered wall 22 at the bottom end of the heat dissipation pipe 21 is in a relatively dry state due to the evaporation of the phase-changing coolant, while the porous sintered wall 22 at the top end of the heat dissipation pipe 21 is in a wet state due to the condensation of the phase-changing coolant. Then the phase-changing coolant in the porous sintered wall 22 will flow from the wet top end to the dry bottom end, so that the phase-changing coolant continuously exchanges heat with the bottom end of the heat dissipation pipe 21, completing the work of continuously dissipating the heat continuously generated when the LED lamp tube 12 on the base 1 works, reducing the temperature in the working environment of the LED lamp tube 12 on the base 1, and improving the service life of the LED lamp tube 12.

[0047] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A high heat dissipation flip-top LED light box, characterized in that: The invention comprises a base (1) and a panel (11) rotatably arranged on the base (1), wherein the base (1) is connected to a wall, a plurality of LED lamp tubes (12) are arranged on the base (1), an advertising poster is placed on the panel (11), a heat dissipation device (2) is arranged on the base (1), and the heat dissipation device (2) is used to dissipate heat from the base (1), and the heat dissipation device (2) comprises: A heat dissipation pipe (21), the heat dissipation pipe (21) being arranged on the base (1), one end of the heat dissipation pipe (21) being located on a side wall where the LED lamp tube (12) is connected to the base (1), and the other end of the heat dissipation pipe (21) extending above the base (1); A phase-changing coolant, wherein the phase-changing coolant is filled in the heat dissipation tube (21), the phase-changing coolant evaporates at the bottom end of the heat dissipation tube (21), and the evaporated phase-changing coolant condenses at the top end of the heat dissipation tube (21); A porous sintered wall (22), wherein the porous sintered wall (22) is arranged on the inner wall of the heat dissipation tube (21).

2. The high heat dissipation flip-top LED light box according to claim 1, characterized in that: The base (1) is provided with a heat dissipation hole (13), the base (1) is provided with a heat conduction plate (14), the heat conduction plate (14) is plugged into the heat dissipation hole (13), the heat conduction plate (14) is made of copper material, and the LED lamp tube (12) and the heat dissipation tube (21) are respectively located on both sides of the heat conduction plate (14).

3. The high heat dissipation flip-top LED light box according to claim 2, characterized in that: The base (1) is provided with a limiting mechanism (3), the limiting mechanism (3) being used to limit the position of the heat conducting plate (14) in the heat dissipation hole (13), the limiting mechanism (3) comprising: A limiting plate (31), wherein the limiting plate (31) is arranged on the inner side wall of the heat dissipation hole (13) of the base (1); A limit block (32), wherein a horizontal sliding hole (34) is provided on the inner side wall of the heat dissipation hole (13) of the base (1), and the limit block (32) is slidably mounted on the sliding hole (34); A limit spring (33), wherein the limit spring (33) is arranged on the inner bottom wall of the sliding hole (34) and is connected to the limit block (32); under the action of the limit spring (33), the limit block (32) partially extends out of the sliding hole (34) and cooperates with the limit plate (31) to clamp the heat conducting plate (14).

4. The high heat dissipation flip-top LED light box according to claim 3, characterized in that: An arc-shaped guide surface (35) is provided on a side wall of one end of the limit block (32) extending out of the sliding hole (34) and away from the limit plate (31).

5. The high heat dissipation flip-top LED light box according to claim 1, characterized in that: The upper surface of the base (1) is evenly provided with ventilation holes (15) communicating with the interior of the base (1), and the lower surface of the base (1) is evenly provided with convection holes (16) communicating with the interior of the base (1).

6. The high heat dissipation flip-top LED light box according to claim 1, characterized in that: A mounting frame (17) is provided on one end of the heat dissipation pipe (21) extending above the base (1), and a mounting hole (19) is provided on the outer wall of the mounting frame (17), through which the advertising board is inserted into the mounting frame (17).

7. The high heat dissipation flip-top LED light box according to claim 6, characterized in that: A connecting collar (18) is provided on the outer side wall of the installation frame (17), and the connecting collar (18) is sleeved on the heat dissipation pipe (21).

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