LED display screen backboard structure with heat dissipation air ducts
By designing heat dissipation channels on the back panel of the LED display screen and utilizing a combination of heat sink, fins, and fans, the problem of low heat dissipation efficiency is solved, achieving efficient heat dissipation, extending the lifespan of the display screen, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI SHUANGFENG TECHNOLOGY CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-19
AI Technical Summary
The low heat dissipation efficiency of existing LED display backplanes causes the display temperature to rise continuously under high load operation, shortening its service life and increasing maintenance costs and downtime risks.
The design incorporates a back panel structure for the LED display with integrated heat dissipation ducts. It combines a heat sink and heat sink fins with a cooling fan within the fan frame to rapidly dissipate heat through heat conduction and forced convection, ensuring efficient heat exchange between cool air and heat.
It significantly improves heat dissipation efficiency, reduces the internal temperature of the display screen, extends its service life, reduces maintenance costs and downtime risks, and is suitable for various installation environments.
Smart Images

Figure CN224385960U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of LED display screen back panel structure, and in particular to an LED display screen back panel structure with heat dissipation duct. Background Technology
[0002] LED displays are widely used in many fields such as outdoor advertising, traffic signs, and live sports broadcasts due to their advantages such as clear images, bright colors, good stability, high brightness, long life, low power consumption, and no space limitations. The back panel of the LED display is a key component in the display structure, ensuring that all components remain stable during installation and use, and preventing components from falling off or being damaged due to vibration, external force, or other factors.
[0003] The current method of heat dissipation for LED display back panels is to install cooling fans. However, due to the limitations of fan speed and airflow, the heat conduction efficiency is low. Under high load operating conditions, it is difficult to meet the rapid heat dissipation requirements, causing the temperature of the core components of the display to rise continuously. This not only seriously weakens the heat dissipation performance, but may also cause a chain reaction such as accelerated light decay of LED chips and aging of circuit components due to local overheating. This greatly shortens the lifespan of the display, increases maintenance costs and equipment downtime risks, and reduces heat dissipation efficiency.
[0004] Therefore, in response to the common practice of installing cooling fans for the heat dissipation of LED display back panels, which not only severely weakens the heat dissipation efficiency and greatly shortens the lifespan of the display, but also increases maintenance costs and equipment downtime risks, and reduces heat dissipation efficiency, an LED display back panel structure with heat dissipation ducts can be designed. Utility Model Content
[0005] To overcome the problem that LED displays commonly use cooling fans for back panel heat dissipation, which not only severely weakens heat dissipation efficiency and greatly shortens the lifespan of the display, but also increases maintenance costs and equipment downtime risks, reducing heat dissipation efficiency.
[0006] The technical solution of this utility model is as follows: an LED display screen back panel structure with heat dissipation air duct, including a back panel frame; the back panel frame is provided with a heat dissipation component for heat dissipation of the LED display screen back panel, the heat dissipation component includes a heat dissipation plate, the heat dissipation plate is arranged on the left and right sides inside the back panel frame, and two sets of heat dissipation plates are arranged, heat dissipation fins are installed between the heat dissipation plates, and a fan frame is installed on the surface of the rear heat dissipation plate, and two sets of fan frames are arranged.
[0007] Preferably, a cooling fan is rotatably connected inside the fan frame, and an air blowing pipe is connected to the back side of the fan frame, with the air outlet of the air blowing pipe connected to the side wall of the back plate frame.
[0008] Preferably, filter discs are installed on the surface of the fan frame facing away from the fan frame, and the filter discs are located at both ends of the fan frame.
[0009] Preferably, a display screen mounting bracket is installed at the front end of the back panel frame, and a display screen mounting plate is fixedly connected to the side surface of the display screen mounting bracket closest to the back panel frame.
[0010] Preferably, a control seat is provided at the bottom of the back panel frame, and two sets of control seats are provided at the top of the back panel frame.
[0011] Preferably, the rear side of the back panel frame is connected to a sealing cover via a hinge, and the sealing cover has heat dissipation holes inside.
[0012] Preferably, mounting rods are threaded onto the left and right side walls of the back panel frame, and an electronic component mounting plate is fixedly connected to the right side of the display screen mounting bracket near the back panel frame.
[0013] The beneficial effects of this invention are as follows: Heat is transferred to the backplate frame via thermal conduction. Since the heat sink is located on the left and right sides inside the backplate frame, heat is quickly conducted from the backplate frame to the heat sink. At the same time, the cooling fan inside the fan frame starts, drawing in external cold air into the backplate structure. After entering, the cold air comes into full contact with the heat sink and heat sink fins, absorbing heat and becoming hot air. Through the heat sink and heat sink fins, the heat dissipation area is significantly increased. Combined with the forced convection formed by the fan frame, the heat generated by the LED display screen can be dissipated quickly and effectively. Compared with traditional heat dissipation structures, the heat dissipation efficiency is greatly improved, effectively reducing the internal temperature of the display screen, ensuring that electronic components work in a suitable temperature environment, and extending the service life of the display screen. Attached Figure Description
[0014] Figure 1 The diagram shown is a first three-dimensional structural schematic of this utility model;
[0015] Figure 2 The diagram shown is a three-dimensional representation of the internal structure of this utility model.
[0016] Figure 3 The diagram shown is a three-dimensional structural schematic of the heat dissipation component of this utility model.
[0017] Figure 4 The diagram shown is a partial first three-dimensional structural schematic of the heat dissipation component of this utility model;
[0018] Figure 5 The diagram shown is a partial second-dimensional structural schematic of the heat dissipation component of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Backplate frame; 2. Display screen mounting frame; 301. Heat sink plate; 302. Heat sink fins; 303. Fan frame; 304. Cooling fan; 305. Air duct; 306. Filter plate; 307. Display screen mounting plate; 308. Control base; 309. Mounting rod; 310. Sealing cover; 311. Heat dissipation hole; 312. Mounting rod; 313. Electronic component mounting plate. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-5 This utility model provides an embodiment of an LED display screen back panel structure with heat dissipation ducts, including a back panel frame 1; the back panel frame 1 is provided with a heat dissipation component for heat dissipation of the LED display screen back panel, the heat dissipation component includes a heat dissipation plate 301, the heat dissipation plate 301 is disposed on the left and right sides inside the back panel frame 1, and two sets of heat dissipation plates 301 are provided, heat dissipation fins 302 are installed between the heat dissipation plates 301, and a fan frame 303 is installed on the surface of the rear heat dissipation plate 301, and two sets of fan frames 303 are provided.
[0022] Please see Figures 4-5 In this embodiment, a cooling fan 304 is rotatably connected inside the fan frame 303, and a blower pipe 305 is connected to the back side of the fan frame 303, with the air outlet end of the blower pipe 305 connected to the side wall of the back plate frame 1; a filter plate 306 is installed on the back side surface of the fan frame 303, and the filter plate 306 is located at both ends of the fan frame 303; a display screen mounting bracket 2 is installed at the front end of the back plate frame 1, and a display screen mounting plate 307 is fixedly connected to the side surface of the display screen mounting bracket 2 near the back plate frame 1.
[0023] The cooling fan 304 rotates inside the fan frame 303, creating a negative pressure suction. External air enters the fan frame 303 after being filtered by the filter disc 306. The filter disc 306 can block dust and debris, preventing them from entering the air duct and affecting the heat dissipation efficiency or damaging internal components. After entering the fan frame 303, the air is guided to the side wall of the back panel frame 1 through the air blowing pipe 305. The airflow direction is controlled to ensure that the airflow is accurately directed to the heat-generating area. The air blowing pipe 305 accurately guides the airflow to the back of the LED display screen. Compared with traditional natural heat dissipation or non-directional fan heat dissipation, it can specifically reduce the temperature of core components and avoid local overheating.
[0024] Please see Figures 2-3In this embodiment, a control seat 308 is provided at the bottom of the back panel frame 1, and two sets of control seats 308 are provided. Two sets of 309 are provided inside the top of the back panel frame 1. A sealing cover 310 is connected to the rear side of the back panel frame 1 by a hinge. A heat dissipation hole 311 is opened inside the sealing cover 310. Mounting rods 312 are threaded to the left and right side walls of the back panel frame 1. An electronic component mounting plate 313 is fixedly connected to the right side of the surface of the display screen mounting bracket 2 near the back panel frame 1.
[0025] The LED display screen is fixed on the display screen mounting bracket 2. The electronic component mounting plate 313 is used to install related electronic components. The mounting rods 312, which are threaded to the left and right side walls of the back plate frame 1, can securely install the entire back plate structure in the required position, providing a stable foundation for subsequent work. Air enters the back plate frame 1 through the heat dissipation holes 311, forming a heat dissipation airflow. The two sets of components 309 set inside the top of the back plate frame 1 cooperate with the two sets of control seats 308 at the bottom to accelerate the airflow in the back plate frame 1. Hot air flows in the airflow and is discharged from the heat dissipation holes 311 at the other end, thereby achieving effective heat dissipation of the LED display screen and ensuring stable operation of the display screen. The combination of the heat dissipation holes 311 and the cooperation of the internal components 309 and control seats 308 can quickly and effectively dissipate the heat generated by the LED display screen, avoiding the performance degradation or shortened lifespan of the display screen due to heat accumulation, and ensuring the stable operation of the display screen for a long time. The mounting rods 312, which are threaded to the left and right side walls of the back plate frame 1, can be flexibly adjusted and installed according to different installation environments and needs, and are suitable for various occasions, enhancing the versatility and adaptability of the back plate structure.
[0026] During operation, the cooling fan 304 is installed inside the fan frame 303. After starting, it rotates at high speed, generating airflow. The airflow is drawn in from the back side of the fan frame 303, guided by the air duct 305, and blown out from the air outlet on the side wall of the back panel frame 1, forming an air duct that runs through the interior of the back panel. Cool air enters through the heat dissipation holes 311 of the sealing cover 310, is filtered for dust by the filter plate 306, and is then drawn into the fan frame 303 by the cooling fan 304. The airflow is delivered to the interior of the back panel frame 1 through the air duct 305, flows over the heat sink 301 and heat dissipation fins 302, and carries away the heat generated by the LED display back panel. The heat sink 301 is installed on the left and right sides of the back panel frame 1 and directly contacts the LED display back panel. The heat sink 301 quickly absorbs heat. The heat dissipation fins 302 are densely arranged on the two sets of heat sinks. Between 301, the heat dissipation area is increased, accelerating the dissipation of heat into the air and improving heat exchange efficiency. The cooling fan 304 blows airflow directionally towards the heat sink 301 and heat sink fins 302 through the air duct 305, forcing airflow and breaking the phenomenon of hot air stagnation, so that heat is quickly discharged with the airflow and avoiding the accumulation of temperature inside the back panel. The filter plate 306 is set at both ends of the fan frame 303 to filter dust and debris in the intake air, preventing dust accumulation and avoiding affecting the heat dissipation efficiency or causing circuit failure. The display screen fixing bracket 2 and the display screen mounting plate 307 are used to fix the LED display screen, ensuring that the back panel and the heat dissipation components are in close contact and reducing the heat conduction gap. The control base 308 and the electronic component mounting plate 313 are used to install electronic components such as drive circuits, facilitating airflow and simultaneously reducing the temperature of electronic components.
Claims
1. A back panel structure for an LED display screen with a heat dissipation duct, comprising a back panel frame (1); characterized in that: The back panel frame (1) is equipped with a heat dissipation component for heat dissipation of the LED display back panel. The heat dissipation component includes a heat dissipation plate (301). The heat dissipation plate (301) is located on the left and right sides inside the back panel frame (1), and there are two sets of heat dissipation plates (301). Heat dissipation fins (302) are installed between the heat dissipation plates (301). A fan frame (303) is installed on the surface of the rear heat dissipation plate (301), and there are two sets of fan frames (303).
2. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: A cooling fan (304) is rotatably connected inside the fan frame (303), and a blower pipe (305) is connected to the back side of the fan frame (303), and the air outlet of the blower pipe (305) is connected to the side wall of the back plate frame (1).
3. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: A filter disc (306) is mounted on the surface of the fan frame (303) facing away from the fan, and the filter disc (306) is located at both ends of the fan frame (303).
4. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: A display screen mounting bracket (2) is installed at the front end of the back panel frame (1), and a display screen mounting plate (307) is fixedly connected to the side surface of the display screen mounting bracket (2) near the back panel frame (1).
5. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: The bottom of the back panel frame (1) is provided with a control seat (308), and there are two sets of control seats (308). The top of the back panel frame (1) is provided with two sets of (309).
6. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: The back panel frame (1) is connected to a sealing cover (310) by a hinge on the rear side, and the sealing cover (310) has a heat dissipation hole (311) inside.
7. The LED display screen backplate structure with heat dissipation duct according to claim 1, characterized in that: The left and right side walls of the back panel frame (1) are threaded with mounting rods (312), and the right side of the display screen mounting bracket (2) near the back panel frame (1) is fixedly connected with an electronic component mounting plate (313).