Full-color LED large-screen projection display device

Abstract

The utility model discloses a full-color LED large-screen projection display device, which relates to the technical field of projection display devices and comprises an LED large-screen frame. According to the utility model, heat is quickly dissipated into the LED large screen frame through the blowing action of the second fan blades, then the first fan blades rotate in the ventilation pipes, and the first fan blades on the other side blow out the heat in the LED large screen frame from the ventilation grooves and the ventilation pipes; therefore, air flow is quickly performed in the frame of the LED large screen for heat dissipation, heat on the heat dissipation fins is more uniformly distributed under the blowing action of the second fan blades, uniform flow of air in the frame is also ensured by the rotary motion of the first fan blades, the heat dissipation uniformity is further improved, and through an efficient heat dissipation mechanism, the heat dissipation efficiency of the LED large screen is improved. And heat generated by the LED screen plate can be quickly discharged out of the LED large screen frame.

Description

Technical Field

[0001] This utility model relates to the field of projection display device technology, specifically a full-color LED large-screen projection display device. Background Technology

[0002] A full-color LED large-screen projection display device is an advanced display technology. It uses a combination of red, green, and blue light-emitting diodes (LEDs) to display rich and colorful images and videos. A full-color LED large screen mainly consists of LED beads, circuit boards, control cards, power supplies, a base shell, a mask, and a cabinet. These components work together to enable the LED large screen to display images stably and efficiently. The full-color LED large screen controls the brightness of each color of LED beads to combine them into various colors, thus displaying rich and colorful images. Its display principle is based on the light-emitting characteristics of LEDs, achieving different brightness and color outputs through precise current control.

[0003] Existing full-color LED large-screen projection display devices are spliced ​​together from several LED screen panels. The operation of these LED screen panels generates a large amount of heat. Fans dissipate the heat through the heat sinks of the LED screen panels, but the heat remains within the LED screen frame. This causes the temperature inside the LED screen frame to rise, reducing the luminous efficiency of the LED chips and decreasing the brightness of the LED screen panels, thus affecting the viewing experience. High temperatures also affect the color performance of the LED screen panels, causing color deviation or color distortion. The high-temperature environment accelerates the aging process of LED chips and other electronic components, thereby shortening the lifespan of the entire LED screen panel. Increased temperature also causes the performance of components such as resistors and capacitors in the circuit to degrade, increasing the failure rate. Utility Model Content

[0004] This utility model provides a full-color LED large-screen projection display device, which has the advantage of rapid heat dissipation of the full-color LED large-screen projection display device, so as to solve the problem that the heat generated by the LED screen panel of the full-color LED large-screen projection display device cannot be quickly dissipated to the outside of the frame.

[0005] To achieve rapid heat dissipation in a full-color LED large-screen projection display device, this utility model provides the following technical solution: A full-color LED large-screen projection display device includes an LED large-screen frame. Ventilation slots are provided on both ends of the LED large-screen frame. Ventilation pipes are uniformly installed inside the LED large-screen frame. A support plate is installed inside the LED large-screen frame. LED screen panels are uniformly installed on the outer surface of the support plate. Heat dissipation fins are installed on one end surface of several LED screen panels. An airflow dynamic component is installed inside the LED large-screen frame. First stabilizing rings are movably installed inside several ventilation pipes. First rotating columns are installed on the inner surfaces of several first stabilizing rings. First fan blades are installed on one end surface of several first rotating columns.

[0006] As a preferred embodiment of this utility model, the airflow power component includes a motor and a rotating shaft. The motor is installed inside the LED screen frame, and the rotating shaft is installed on the outer surface of the motor output end.

[0007] As a preferred embodiment of this utility model, a driven shaft is uniformly and movably installed inside the support plate, and a transmission shaft is movably installed inside the LED screen frame.

[0008] As a preferred embodiment of this utility model, driven gears are uniformly installed on the outer surface of the transmission shaft and the outer surfaces of several driven shafts, and a driving gear is installed on the outer surface of the rotating shaft.

[0009] As a preferred embodiment of this utility model, a chain is movably mounted on the outer surface of the driving gear and the outer surfaces of several driven gears. A first driving helical gear is uniformly mounted on the outer surface of both the rotating shaft and the transmission shaft. A first driven helical gear is mounted on one end surface of each of the several first rotating columns. The outer surfaces of the first driving helical gear and the outer surfaces of the first driven helical gear mesh with each other.

[0010] As a preferred embodiment of this utility model, a second driving helical gear is installed on the outer surface of several driven shafts, ventilation holes are evenly opened inside the support plate, and a second stabilizing ring is movably installed on the inner wall of several ventilation holes.

[0011] As a preferred embodiment of the present invention, a second rotating column is installed on the inner surface of a plurality of second stabilizing rings, a second fan blade is installed on one end surface of a plurality of second rotating columns, and a second driven helical gear is installed on the other end surface of a plurality of second rotating columns, wherein the outer surface of the second driving helical gear meshes with the outer surface of the second driven helical gear.

[0012] Compared with the prior art, this utility model provides a full-color LED large-screen projection display device, which has the following beneficial effects:

[0013] This full-color LED large-screen projection display device uses a second fan to directly blow air onto the heat sink fins, quickly removing heat from the fins and dissipating it rapidly into the LED screen frame. The second fan then rotates within the ventilation duct, blowing heat out of the frame through the ventilation slots and ducts, creating rapid airflow for heat dissipation. The second fan's blowing action ensures more even heat distribution on the heat sink fins, preventing localized overheating. The rotation of the first fan also ensures uniform airflow within the frame, further improving heat dissipation uniformity. This efficient heat dissipation mechanism quickly removes heat generated by the LED screen panel from the LED screen frame. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0016] Figure 3 This utility model provides Figure 2 Enlarged schematic diagram of section A in the middle;

[0017] Figure 4 This is a schematic diagram of the external structure of the rotating shaft of this utility model;

[0018] Figure 5 This is a schematic diagram of the external structure of the driven shaft of this utility model.

[0019] In the diagram: 1. LED screen frame; 2. Motor; 3. Support plate; 4. Rotating shaft; 5. Drive gear; 6. Driven gear; 7. Chain; 8. Ventilation slot; 9. Ventilation duct; 10. Driven shaft; 11. Heat sink fins; 12. LED screen panel; 13. First drive helical gear; 14. First driven helical gear; 15. First rotating column; 16. First fan blade; 17. Second drive helical gear; 18. Second driven helical gear; 19. Second rotating column; 20. First stabilizing ring; 21. Second stabilizing ring; 22. Second fan blade; 23. Ventilation hole; 24. Drive shaft. Detailed Implementation

[0020] 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 protection scope of the present utility model.

[0021] Please see Figures 1-5 This utility model discloses a full-color LED large-screen projection display device, including an LED large-screen frame 1. Ventilation slots 8 are formed on both ends of the LED large-screen frame 1. Ventilation pipes 9 are evenly installed inside the LED large-screen frame 1. A support plate 3 is installed inside the LED large-screen frame 1. LED screen panels 12 are evenly installed on the outer surface of the support plate 3. Heat dissipation fins 11 are installed on one end surface of several LED screen panels 12. An airflow dynamic component is installed inside the LED large-screen frame 1. First stabilizing rings 20 are movably installed inside several ventilation pipes 9. First rotating columns 15 are installed on the inner surface of several first stabilizing rings 20. First fan blades 16 are installed on one end surface of several first rotating columns 15. The first stabilizing rings 20 stabilize the first rotating columns 15, driving the first fan blades 16 to rotate. The first fan blades 16 rotate within the ventilation pipes 9. The airflow forces air into the LED screen frame 1, while the first fan 16 on the other side blows heat out of the LED screen frame 1 through the ventilation slot 8 and ventilation pipe 9. This rapid airflow inside the LED screen frame 1 dissipates heat and achieves rapid air exchange between the inside and outside of the LED screen frame 1. This forced convection method greatly improves heat dissipation efficiency, ensuring that the screen maintains a low temperature even under high load. The first fan 16 inside the LED screen frame 1 promptly dissipates heat, preventing heat accumulation inside the LED screen panel 12, thereby effectively reducing the operating temperature of the LED screen panel 12, extending its service life, ensuring sufficient airflow without interfering with other parts of the LED screen panel 12, thus guaranteeing both heat dissipation and the stability of the LED screen panel 12's operation.

[0022] The airflow power assembly includes a motor 2 and a rotating shaft 4. The motor 2 is installed inside the LED screen frame 1, and the rotating shaft 4 is installed on the outer surface of the output end of the motor 2. Driven shafts 10 are evenly and movably installed inside the support plate 3. A transmission shaft 24 is movably installed inside the LED screen frame 1. Driven gears 6 are evenly installed on the outer surface of the transmission shaft 24 and the outer surfaces of several driven shafts 10. A drive gear 5 is installed on the outer surface of the rotating shaft 4. A chain 7 is movably installed on the outer surface of the drive gear 5 and the outer surfaces of several driven gears 6. A first drive helical gear 13 is evenly installed on the outer surface of both the rotating shaft 4 and the outer surface of the transmission shaft 24. A first driven helical gear 14 is installed on one end surface of several first rotating columns 15. The outer surfaces of the first drive helical gear 13 and the outer surfaces of the first driven helical gear 14 mesh with each other. A second drive helical gear 17 is installed on the outer surface of several driven shafts 10. Ventilation holes 23 are evenly opened inside the support plate 3, and the inner walls of several ventilation holes 23 are movably installed with... There is a second stabilizing ring 21, and a second rotating column 19 is installed on the inner surface of several second stabilizing rings 21. A second fan blade 22 is installed on one end surface of several second rotating columns 19, and a second driven helical gear 18 is installed on the other end surface of several second rotating columns 19. The outer surface of the second driving helical gear 17 meshes with the outer surface of the second driven helical gear 18, so that the second fan blade 22 blows air onto the heat dissipation fins 11 to dissipate heat. The second fan blade 22 blows air directly onto the heat dissipation fins 11, which can quickly remove the heat on the heat dissipation fins 11, improve the heat dissipation efficiency, and the heat can be quickly transferred from the LED screen panel 12 to the heat dissipation fins 11, and then quickly dissipated into the air by the blowing action of the second fan blade 22. This helps to remove the heat from the heat dissipation fins 11 and diffuse it into the LED screen frame 1, so as to facilitate the rapid dissipation of heat. It can also blow air evenly on all parts of the heat dissipation fins 11, avoiding the accumulation of heat in certain areas. The uniform heat dissipation effect helps to extend the service life of the LED screen panel 12.

[0023] The working principle and usage process of this utility model are as follows: When several LED screen panels 12 are working, the synchronous motor 2 operates, driving the rotating shaft 4 to rotate. The rotating shaft 4 drives the drive gear 5 to rotate, and the drive gear 5 drives several driven gears 6 to rotate via the chain 7. The driven gears 6 correspondingly drive the driven shaft 10 and the transmission shaft 24 to rotate. The rotating shaft 4 and the transmission shaft 24 synchronously drive several first drive helical gears 13 to rotate. The outer surfaces of the first drive helical gears 13 mesh with the outer surfaces of the corresponding first driven helical gears 14, thereby causing the first driven helical gears 14 to rotate. The first driven helical gears 14 drive the first rotating column 15 and the first stabilizing ring 20 to rotate. The first stabilizing ring 20 stabilizes the first rotating column 15, driving the first fan blade 16 to rotate. The first fan blade 16 rotates within the ventilation pipe 9. The internal rotating motion blows air into the LED screen frame 1, while the first fan blade 16 on the other side blows the heat inside the LED screen frame 1 out through the ventilation slot 8 and ventilation pipe 9, thereby enabling rapid airflow inside the LED screen frame 1 for heat dissipation. This rapid exchange of air between the inside and outside of the LED screen frame 1 greatly improves heat dissipation efficiency, ensuring that the screen maintains a low temperature even under high load conditions. The first fan blade 16 inside the LED screen frame 1 promptly dissipates heat, preventing heat accumulation inside the LED screen panel 12, thus effectively reducing the operating temperature of the LED screen panel 12, extending the service life of the LED screen panel 12, ensuring sufficient airflow without interfering with other parts of the LED screen panel 12, ensuring both heat dissipation effect and the stability of the LED screen panel 12 operation.

[0024] Furthermore, several driven shafts 10 synchronously drive the second driving helical gear 17 to rotate. The outer surface of the second driving helical gear 17 meshes with the outer surface of the second driven helical gear 18, thereby causing the several second driven helical gears 18 to drive the second rotating column 19 and the second stabilizing ring 21 to rotate. The second stabilizing ring 21 stabilizes the second rotating column 19, causing the second fan blade 22 to rotate. The second fan blade 22 rotates within the ventilation hole 23, causing the second fan blade 22 to blow air onto the heat sink 11 to dissipate heat. The second fan blade 22 blows air directly onto the heat sink 11, which can quickly remove the heat from the heat sink 11. The heat dissipation efficiency is improved, and heat can be quickly transferred from the LED screen panel 12 to the heat dissipation fins 11. The heat is then quickly dissipated into the air by the blowing action of the second fan fins 22. This helps to remove heat from the heat dissipation fins 11 and diffuse it into the LED screen frame 1, thus facilitating the rapid dissipation of heat. The fan can also blow heat evenly over all parts of the heat dissipation fins 11, preventing heat from accumulating in certain areas. The uniform heat dissipation effect helps to extend the service life of the LED screen panel 12, prevent performance degradation or damage caused by local overheating, and reduce thermal stress, which helps to improve the stability and reliability of the entire LED screen panel 12.

Claims

1. A full-color LED large-screen projection display device comprising an LED large-screen frame (1), characterized in that: Both ends of the LED large screen frame (1) are provided with ventilation grooves (8), the inside of the LED large screen frame (1) is uniformly provided with ventilation pipes (9), the inside of the LED large screen frame (1) is provided with a support plate (3), the outer side surface of the support plate (3) is uniformly provided with LED screen plates (12), one end of each of the LED screen plates (12) is provided with a heat dissipation fin (11), the inside of the LED large screen frame (1) is provided with an air flow power assembly, the inside of each of the ventilation pipes (9) is movably provided with a first stabilizing ring (20), the inner side surface of each of the first stabilizing rings (20) is provided with a first rotating column (15), and one end of each of the first rotating columns (15) is provided with a first fan blade (16).

2. The full-color LED large-screen projection display device according to claim 1, characterized in that: The air flow power assembly comprises a motor (2) and a rotating shaft (4), the motor (2) is installed in the inside of the LED large screen frame (1), and the rotating shaft (4) is installed on the outer side surface of the output end of the motor (2).

3. The full-color LED large-screen projection display device according to claim 2, characterized in that: The inside of the support plate (3) is movably provided with a driven shaft (10), and the inside of the LED large screen frame (1) is movably provided with a transmission shaft (24).

4. The full-color LED large-screen projection display device according to claim 3, characterized in that: The outer side surface of the transmission shaft (24) and the outer side surface of each of the driven shafts (10) are uniformly provided with driven gears (6), and the outer side surface of the rotating shaft (4) is provided with a driving gear (5).

5. The full-color LED large-screen projection display device according to claim 4, characterized in that: The outer side surface of the driving gear (5) and the outer side surface of each of the driven gears (6) are movably provided with a chain (7), the outer side surface of the rotating shaft (4) and the outer side surface of the transmission shaft (24) are uniformly provided with first driving helical gears (13), one end of each of the first rotating columns (15) is provided with a first driven helical gear (14), and the outer side surface of the first driving helical gear (13) and the outer side surface of the first driven helical gear (14) are meshed with each other.

6. The full-color LED large-screen projection display device according to claim 5, characterized in that: The outer side surface of each of the driven shafts (10) is provided with a second driving helical gear (17), the inside of the support plate (3) is uniformly provided with ventilation holes (23), and the inner wall of each of the ventilation holes (23) is movably provided with a second stabilizing ring (21).

7. The full-color LED large-screen projection display device according to claim 6, characterized in that: The inner side surface of each of the second stabilizing rings (21) is provided with a second rotating column (19), one end of each of the second rotating columns (19) is provided with a second fan blade (22), the other end of each of the second rotating columns (19) is provided with a second driven helical gear (18), and the outer side surface of the second driving helical gear (17) and the outer side surface of the second driven helical gear (18) are meshed with each other.

Images