Heat dissipation structure and advertising machine

Abstract

The invention discloses a heat dissipation structure and an advertising machine, and belongs to the technical field of heat dissipation structures. The heat dissipation device comprises a heat dissipation assembly, and the heat dissipation assembly can be arranged on the back side of the display screen. The heat dissipation assembly comprises a first heat exchange plate and a second heat exchange plate which are arranged in parallel, the first heat exchange plate communicates with the second heat exchange plate through a telescopic pipe, and cooling liquid can circularly flow between the first heat exchange plate and the second heat exchange plate. The first heat exchange plate and the second heat exchange plate are connected through a first telescopic rod, and the first telescopic rod can stretch out when the temperature rises and retract when the temperature drops. A first net plate is arranged between the first heat exchange plate and the second heat exchange plate, and the first net plate is movably connected with the first heat exchange plate and the second heat exchange plate. By arranging the first telescopic rod and the telescopic pipe, the first telescopic rod extends out at high temperature, so that the second heat exchange plate is far away from the first heat exchange plate. The temperature is effectively reduced, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat dissipation structures, and in particular to a heat dissipation structure and an advertising machine. Background Art

[0002] Outdoor advertising machines are divided into outdoor LCD advertising machines and outdoor LED display screens, which can display relevant information outdoors, bringing good visual and auditory enjoyment to outdoor information dissemination. They can be widely used in outdoor advertising broadcasting, outdoor public information release, outdoor media dissemination, touch interactive query and other fields.

[0003] The LED display screen in the advertising machine is easily damaged in a high temperature environment, so the LED display screen needs to be cooled. The existing method is to set a radiator to cool the LED display screen. A circulating coolant is usually set in the radiator to cool the LED display screen. However, in some areas with large temperature differences, the temperature at noon is very high. Sometimes the coolant itself cannot fully meet the heat dissipation of the radiator. Summary of the invention

[0004] In view of the above-mentioned shortcomings, the present invention provides a heat dissipation structure and an advertising machine, wherein the heat dissipation structure can effectively solve the problem of insufficient heat dissipation of the radiator itself.

[0005] A first aspect of the present invention protects a heat dissipation structure, comprising a heat dissipation component, wherein the heat dissipation component is arranged on the back side of a display screen; The heat dissipation assembly comprises a first heat exchange plate and a second heat exchange plate arranged in parallel, the first heat exchange plate and the second heat exchange plate are connected through a telescopic pipe, and the coolant can circulate between the first heat exchange plate and the second heat exchange plate; The first heat exchange plate and the second heat exchange plate are connected by a first telescopic rod, and the first telescopic rod can be extended when the temperature rises and retracted when the temperature drops; A first mesh plate is provided between the first heat exchange plate and the second heat exchange plate, and the first mesh plate is movably connected to the first heat exchange plate and the second heat exchange plate.

[0006] Furthermore, the first mesh plate includes a mesh plate body, one end of the mesh plate body is hinged to the first heat exchange plate, the other end of the mesh plate body is hinged to a slider, the slider is arranged on a slide rail, the number of the slide rails is multiple, and the multiple slide rails are arranged on the second heat exchange plate.

[0007] Furthermore, a plurality of fins are provided on a side of the second heat exchange plate facing away from the first heat exchange plate.

[0008] Further, a second mesh plate is provided on a side of the second heat exchange plate away from the first heat exchange plate, the bottom end of the second mesh plate is hinged to the second heat exchange plate, and the top end of the second mesh plate is connected to the second heat exchange plate via a second telescopic rod; The second telescopic rod can be extended when the temperature rises, and retracted when the temperature drops.

[0009] Furthermore, the heat dissipation assembly further comprises a water tank, the water tank is fixed to the top end of the first heat exchange plate, and a cavity is provided at the bottom end of the water tank; A C-shaped plate is provided at the top of the second heat exchange plate, and the C-shaped plate can be snapped into the cavity; The C-shaped plate extends from the cavity, and the bottom of the water tank drips downward; the C-shaped plate is inserted into the cavity, and the bottom of the water tank stops dripping.

[0010] Further, the water tank comprises a box body, the box body is provided with the cavity, the top wall of the cavity is provided with a plurality of bottom holes; a protrusion is provided on the side wall of the cavity, and the protruding end of the protrusion is bent upward; The C-shaped plate includes a C-shaped plate body and side plates, and the side plates are provided with through holes; the protrusion is inserted between the upper plate and the lower plate of the plate body, and the upper plate of the plate body abuts against the top wall of the cavity to cover the bottom hole.

[0011] Furthermore, the side plate is connected to a conduit to conduct water out.

[0012] Furthermore, a turntable is provided at the top of the second heat exchange plate, and the turntable can rotate with the flow of the coolant, and the dripping water from the water tank can fall into the turntable and then be thrown out by the turntable.

[0013] Furthermore, the turntable includes a base and a receiving tray body disposed on the base, and a drainage hole is disposed on a side wall of the receiving tray body.

[0014] The second aspect of the present invention protects an advertising machine, comprising a housing, a display screen is arranged inside the housing, and the back side of the display screen is provided with the above-mentioned heat dissipation structure.

[0015] Beneficial effects: The present invention sets a first telescopic rod and a telescopic tube. When the temperature is high, the first telescopic rod is extended to move the second heat exchange plate away from the first heat exchange plate. The first heat exchange plate is close to the display screen, that is, the heat source, and has a high temperature. The second heat exchange plate is away from the first heat exchange plate, so that the second heat exchange plate can be located at a lower temperature. In this way, the coolant entering the second heat exchange plate can better cool down. In addition, the second heat exchange plate away from the first heat exchange plate can also stretch the telescopic tube, and the coolant has a longer travel distance, which effectively dissipates heat to cool down the display screen. By setting the first mesh plate, the heat dissipation between the first heat exchange plate and the second heat exchange plate is effectively increased, and the first heat exchange plate is better cooled down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] in: Figure 1 It is a schematic diagram of the overall structure of an advertising machine in one embodiment of the present invention; Figure 2 It is a structural schematic diagram of a heat dissipation structure in a contracted state in one embodiment of the present invention; Figure 3 for Figure 2 A side view of the heat dissipation structure; Figure 4 It is a structural schematic diagram of a heat dissipation structure in an open state in one embodiment of the present invention; Figure 5 for Figure 4 A side view of the heat dissipation structure; Figure 6 This is a schematic structural diagram of a second heat exchange plate in one embodiment of the present invention; Figure 7 for Figure 6 A rear view of the second heat exchange plate; Figure 8 for Figure 7 A cross-sectional view of the second heat exchange plate in the AA direction; Fig. 9 for Figure 8 A partial enlarged view of part C in the middle; Fig.10 A schematic diagram of the structure of a turntable in one embodiment of the present invention; Fig.11 is a cross-sectional view of a first heat exchange plate in one embodiment of the present invention; Fig.12 is a cross-sectional view of a second heat exchange plate in one embodiment of the present invention; In the figure, 1. display screen; 2. Shell; 3. Heat dissipation components; 31. The first heat exchange plate; 32. Telescopic tube; 33, water tank; 331, box body; 3311, bottom hole; 3312, protrusion; 34, second heat exchange plate; 341, second telescopic rod; 342, second mesh plate; 343, conduit; 344, C-shaped plate; 3441, plate body; 3442, side plate; 3443, through hole; 345, heat exchange plate body; 346, fin; 35. first mesh plate; 351. slider; 352. slide rail; 353. mesh plate body; 36. a first telescopic rod; 37, turntable; 371, base; 372, receiving plate body; 3721, drainage hole; 38. Micro pump. DETAILED DESCRIPTION

[0018] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments 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 creative work are within the scope of protection of the present invention.

[0019] refer to Figure 1 to Figure 12 The first aspect of the present invention protects a heat dissipation structure, which includes a heat dissipation component 3, and the heat dissipation component 3 is arranged on the back side of the display screen.

[0020] The heat dissipation assembly 3 includes a first heat exchange plate 31 and a second heat exchange plate 34 arranged in parallel. The first heat exchange plate 31 and the second heat exchange plate 34 are connected by a telescopic tube 32, and the coolant can circulate between the first heat exchange plate 31 and the second heat exchange plate 34. The first heat exchange plate 31 and the second heat exchange plate 34 are both provided with a serpentine tube, which is used for the circulation of the coolant. A micro pump 38 is provided at the bottom of the first heat exchange plate 31 to make the coolant flow. The micro pump 38 is a conventional small pump available on the market, which is driven by a power supply.

[0021] The first heat exchange plate 31 and the second heat exchange plate 34 are connected by a first telescopic rod 36, which can be extended when the temperature rises and retracted when the temperature drops. The structure of the first telescopic rod 36 is the same as that of a conventional hydraulic rod, except that the hydraulic oil is replaced with a liquid with a large expansion coefficient, such as alcohol, kerosene, etc. In this way, the first telescopic rod 36 can be extended when the temperature rises, in order to push the second heat exchange plate 34 away.

[0022] A first mesh plate 35 is disposed between the first heat exchange plate 31 and the second heat exchange plate 34, and the first mesh plate 35 is movably connected to the first heat exchange plate 31 and the second heat exchange plate 34. The first mesh plate 35 is a mesh plate formed by a serpentine tube, which can increase the heat dissipation area and assist the first heat exchange plate 31 in heat dissipation.

[0023] The present invention sets a first telescopic rod 36 and a telescopic tube 32. When the temperature is high, the first telescopic rod 36 is extended to move the second heat exchange plate 34 away from the first heat exchange plate 31. The first heat exchange plate 31 is close to the display screen, that is, the heat source, and has a high temperature. The second heat exchange plate 34 is away from the first heat exchange plate 31, so that the second heat exchange plate 34 can be located at a lower temperature. In this way, the coolant entering the second heat exchange plate 34 can better cool down. In addition, the second heat exchange plate 34 away from the first heat exchange plate 31 can also stretch the telescopic tube 32, and the coolant has a longer travel distance, which effectively dissipates heat to cool down the display screen. By setting the first mesh plate 35, the heat dissipation between the first heat exchange plate 31 and the second heat exchange plate 34 is effectively increased, and the first heat exchange plate 31 is better cooled.

[0024] refer to Figures 2 to 6 In a specific embodiment, the first mesh plate 35 includes a mesh body 353, one end of the mesh body 353 is hinged to the first heat exchange plate 31, and the other end of the mesh body 353 is hinged to the slider 351, and the slider 351 is set on the slide rail 352, the number of slide rails 352 is multiple, and the multiple slide rails 352 are set on the second heat exchange plate 34.

[0025] The top of the mesh body 353 in this embodiment is hinged to the first heat exchange plate 31, and the bottom of the mesh body 353 is hinged to the slider 351. Alternatively, the bottom of the mesh body 353 is hinged to the first heat exchange plate 31, and the top of the mesh body 353 is hinged to the slider 351. The slider 351 can move in the vertical direction, thereby opening the mesh body 353 in the direction close to the second heat exchange plate 34. The mesh body 353 can increase the heat dissipation area and effectively reduce the temperature of the first heat exchange plate 31. By setting the vertical slide rail 352, firstly, the slider 351 can be set on the slide rail 352 at different positions according to actual conditions; secondly, the heat dissipation area of ​​the second heat exchange plate 34 can be increased, effectively improving the heat dissipation effect of the second heat exchange plate 34.

[0026] refer to Figure 7 In a specific embodiment, a plurality of fins 346 are provided on the side of the second heat exchange plate 34 facing away from the first heat exchange plate 31. Each fin 346 is provided in a vertical direction, and the plurality of fins 346 are parallel to each other. By providing the fins 346, the heat dissipation area can be further increased, and the heat dissipation effect can be improved.

[0027] refer to Figures 2~5 In a specific embodiment, a second mesh plate 342 is provided on the side of the second heat exchange plate 34 facing away from the first heat exchange plate 31, the bottom end of the second mesh plate 342 is hinged to the second heat exchange plate 34, and the top end of the second mesh plate 342 is connected to the second heat exchange plate 34 through a second telescopic rod 341; the second telescopic rod 341 can be extended when the temperature rises and retracted when the temperature drops.

[0028] In this embodiment, the top of the second mesh plate 342 can be opened outward, and the bottom is always hinged to the second heat exchange plate 34. The second telescopic rod 341 has the same structure as the first telescopic rod 36, and both are telescopic according to temperature changes. When the temperature of the coolant is particularly high, the temperature of the second heat exchange plate 34 will also increase significantly. At this time, by setting the second mesh plate 342, the second mesh plate 342 is opened outward, which can contact the air with a lower temperature, thereby cooling the second heat exchange plate 34.

[0029] refer to Figures 6 to 9 In a specific embodiment, the heat dissipation assembly 3 further includes a water tank 33, which is fixed to the top of the first heat exchange plate 31, and a cavity is provided at the bottom of the water tank 33. A C-shaped plate 344 is provided at the top of the second heat exchange plate 34, and the C-shaped plate 344 can be engaged in the cavity. The C-shaped plate 344 extends from the cavity, and the bottom of the water tank 33 drips downward; when the C-shaped plate 344 is inserted into the cavity, the bottom of the water tank 33 stops dripping.

[0030] The cavities in this embodiment are located on both sides of the box body 331, that is, Figure 7 The cavity is set in the box body 331 to form a side wall, wherein the side wall of the cavity close to the rotating disk 37 is removed, and the side wall of the cavity close to the fin 346 is also removed. The C-type plate 344 is inserted in and out of the cavity to assist in controlling the dripping of the box body 331. By setting the dripping, the second heat exchange plate 34 below can be further cooled. In addition, the first mesh plate 35 and the second mesh plate 342 can also catch part of the dripping water to achieve cooling.

[0031] refer to Fig. 9 In a specific embodiment, the water tank 33 includes a box body 331, a cavity is provided in the box body 331, and a plurality of bottom holes 3311 are provided on the top wall of the cavity; a protrusion 3312 is provided on the side wall in the cavity, and the protruding end of the protrusion 3312 is bent upward; The C-shaped plate 344 includes a C-shaped plate body 3441 and a side plate 3442 , and the side plate 3442 is provided with a through hole 3443 ; the protrusion 3312 is inserted between the upper plate and the lower plate of the plate body 3441 , and the upper plate of the plate body 3441 abuts against the top wall of the cavity to cover the bottom hole 3311 .

[0032] In this embodiment, a water storage area is provided on the top side of the cavity, and the bottom hole 3311 can drip water out. When the second heat exchange plate 34 is close to the first heat exchange plate 31, the upper plate of the plate body 3441 can resist the bottom hole 3311 to prevent dripping. When the second heat exchange plate 34 is away from the first heat exchange plate 31, the upper plate of the plate body 3441 can move out horizontally, gradually not blocking the bottom hole 3311, allowing the bottom hole 3311 to drip water. The water will flow along the protrusion 3312 to the bent end, and then enter the through hole 3443 from the side of the protrusion 3312, and flow into the turntable 37 along the conduit 343.

[0033] It is particularly noted that in this embodiment, multiple bottom holes 3311 are provided, and as the plate body 3441 is removed, the number of bottom holes 3311 that can drip water can also be increased to cope with high temperature environments. When the temperature rises slightly, the second heat exchange plate 34 is away from the first heat exchange plate 31, and the first mesh plate 35 and the second mesh plate 342 are opened, and air heat is used at this time; when the temperature rises to a certain temperature, the bottom hole 3311 starts to drip water, and the water droplets can be sprinkled around the second heat exchange plate 34. At this time, water cooling is added, which is air + water heat dissipation, and the heat dissipation effect is better.

[0034] refer to Figure 6 In a specific embodiment, the side plate 3442 is connected to the conduit 343 to guide the water out. In this embodiment, the conduit 343 can accurately guide the water into the rotating disk 37, and the rotating disk 37 can be assisted to spread the water.

[0035] refer to Figure 6 , 7 8. In a specific embodiment, a turntable 37 is provided at the top of the second heat exchange plate 34. The turntable 37 can rotate with the flow of the coolant, and the dripping water from the water tank 33 can fall into the turntable 37 and then be thrown out by the turntable 37.

[0036] The rotating disk 37 in this embodiment rotates with the flow of the coolant without consuming additional energy. The rotating disk 37 can throw out water, and the thrown water droplets can fall on the surrounding structural parts of the second heat exchange plate 34, such as the first mesh plate 35 and the second mesh plate 342, which can effectively cool them. At the same time, the rotation of the rotating disk 37 can disperse the water droplets, increase the surface area, enhance the heat absorption effect, further reduce the temperature around the second heat exchange plate 34, and effectively cool the coolant in the second heat exchange plate 34.

[0037] 6 to 12 , in a specific embodiment, the turntable 37 includes a base 371 and a receiving tray body 372 disposed on the base 371 , and a drainage hole 3721 is disposed on a side wall of the receiving tray body 372 .

[0038] The base 371 in this embodiment is a cube, which is provided with a channel in the horizontal direction, so that the coolant can flow through, and the base 371 is directly placed in the second heat exchange plate 34. A receiving tray 372 is provided at the top of the base 371, and the receiving tray 372 is bowl-shaped, and the bottom wall of the receiving tray 372 is provided with a middle high edge bottom, so that the water can flow to the edge faster and increase the throwing speed. A rotating rod is connected to the bottom end of the receiving tray 372, and blades are provided on the side of the bottom of the rotating rod. The bottom of the rotating rod is provided in the channel, and the flow of the coolant can push the blades to drive the rotating rod to rotate, thereby driving the receiving tray 372 to rotate.

[0039] refer to Figure 1The second aspect of the present invention protects an advertising machine, which includes a housing 2, a display screen 1 is arranged inside the housing 2, and the back side of the display screen 1 is provided with the above-mentioned heat dissipation structure. The top side and side of the housing 2 are provided with air intake strip holes to assist heat dissipation.

[0040] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A heat dissipation structure, characterized in that: It comprises a heat dissipation component (3), and the heat dissipation component (3) can be arranged on the back side of a display screen; The heat dissipation assembly (3) comprises a first heat exchange plate (31) and a second heat exchange plate (34) which are arranged in parallel, the first heat exchange plate (31) and the second heat exchange plate (34) being connected via a telescopic pipe (32), and a coolant can circulate between the first heat exchange plate (31) and the second heat exchange plate (34); The first heat exchange plate (31) and the second heat exchange plate (34) are connected via a first telescopic rod (36), and the first telescopic rod (36) can be extended when the temperature rises and retracted when the temperature drops; A first mesh plate (35) is provided between the first heat exchange plate (31) and the second heat exchange plate (34), and the first mesh plate (35) is movably connected to the first heat exchange plate (31) and the second heat exchange plate (34).

2. The heat dissipation structure according to claim 1, characterized in that: The first mesh plate (35) comprises a mesh plate body (353), one end of the mesh plate body (353) being hinged to the first heat exchange plate (31), and the other end of the mesh plate body (353) being hinged to a slider (351), the slider (351) being arranged on a slide rail (352), the slide rails (352) being in plurality, and the plurality of slide rails (352) being arranged on the second heat exchange plate (34).

3. The heat dissipation structure according to claim 1, characterized in that: A plurality of fins (346) are provided on a side of the second heat exchange plate (34) facing away from the first heat exchange plate (31).

4. The heat dissipation structure according to claim 1, characterized in that: A second mesh plate (342) is provided on a side of the second heat exchange plate (34) facing away from the first heat exchange plate (31); the bottom end of the second mesh plate (342) is hinged to the second heat exchange plate (34); and the top end of the second mesh plate (342) is connected to the second heat exchange plate (34) via a second telescopic rod (341); The second telescopic rod (341) can be extended when the temperature rises, and retracted when the temperature drops.

5. The heat dissipation structure according to claim 1, characterized in that: It also includes a water tank (33), the water tank (33) is fixed to the top end of the first heat exchange plate (31), and a cavity is provided at the bottom end of the water tank (33); A C-shaped plate (344) is provided at the top end of the second heat exchange plate (34), and the C-shaped plate (344) can be engaged in the cavity; The C-shaped plate (344) extends from the cavity, and the bottom of the water tank (33) drips water downward; the C-shaped plate (344) is inserted into the cavity, and the bottom of the water tank (33) stops dripping water.

6. The heat dissipation structure according to claim 5, characterized in that: The water tank (33) comprises a box body (331), the box body (331) is provided with the cavity, and the top wall of the cavity is provided with a plurality of bottom holes (3311); a protrusion (3312) is provided on the side wall in the cavity, and the protruding end of the protrusion (3312) is bent upward; The C-shaped plate (344) comprises a C-shaped plate body (3441) and a side plate (3442), wherein the side plate (3442) is provided with a through hole (3443); the protrusion (3312) is inserted between the upper plate and the lower plate of the plate body (3441), and the upper plate of the plate body (3441) abuts against the top wall of the cavity to cover the bottom hole (3311).

7. The heat dissipation structure according to claim 6, characterized in that: The side plate (3442) is connected to the conduit (343) to guide the water out.

8. The heat dissipation structure according to claim 5, characterized in that: A rotating disk (37) is provided at the top end of the second heat exchange plate (34). The rotating disk (37) can rotate along with the flow of the coolant, and dripping water from the water tank (33) can fall into the rotating disk (37) and then be thrown out by the rotating disk (37).

9. The heat dissipation structure according to claim 8, characterized in that: The rotating disk (37) comprises a base (371) and a receiving disk body (372) arranged on the base (371), and a drainage hole (3721) is provided on a side wall of the receiving disk body (372).

10. An advertising machine, characterized in that: It comprises a housing (2), a display screen (1) being arranged inside the housing (2), and a heat dissipation structure according to any one of claims 1 to 9 being arranged on the back side of the display screen (1).

Images