LED display screen frame structure heat dissipation device

Abstract

The utility model provides an LED display screen frame structure heat dissipation device, which belongs to the technical field of heat dissipation devices and comprises a plurality of fan-blade-shaped heat dissipation plates, a fixed shaft, a slidable limiting device and a frame main body, the fan-blade-shaped heat dissipation plates are sequentially connected end to end through hinges to form a folding fan-shaped structure, the fixing shaft is arranged on one side of the frame body, one ends of the fan-blade-shaped heat dissipation plates are jointly hinged to the fixing shaft, and the slidable limiting device is arranged on the other side of the frame body. The fan-blade-shaped heat dissipation plates are arranged on the base and used for limiting the unfolding or folding state of the fan-blade-shaped heat dissipation plates, the fan-blade-shaped heat dissipation plates are of an arc-shaped sheet structure, the arc-shaped edges of the adjacent fan-blade-shaped heat dissipation plates are attached to each other, a plurality of heat dissipation through holes are formed in the surfaces of the fan-blade-shaped heat dissipation plates, and the defects that the heat dissipation area of a traditional LED display screen frame heat dissipation device is fixed and cannot be flexibly adjusted are overcome.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat dissipation devices, and more specifically, relates to a heat dissipation device for an LED display screen frame structure. Background Technology

[0002] LED displays, with their advantages of high brightness, long lifespan, and low energy consumption, are widely used in advertising, traffic guidance, stage performances, and many other fields. During operation, LED chips generate a significant amount of heat. If this heat is not dissipated effectively and promptly, the internal temperature of the display will rise, affecting the luminous efficiency and lifespan of the LED chips, and potentially causing display malfunctions. Therefore, the heat dissipation device of the LED display frame structure is a crucial component for ensuring the normal and stable operation of the display.

[0003] Traditional LED display frame structures primarily employ heat dissipation devices such as heat sinks and cooling fans. One method, using fixed heat sinks, involves directly mounting them onto the display frame to increase the contact area with air and thus promote heat dissipation. However, this method has significant drawbacks: firstly, fixed heat sinks occupy considerable space when the display is not in operation or during transportation, increasing transportation costs and installation difficulty; secondly, the fixed heat dissipation area cannot be flexibly adjusted according to the actual heat generation of the display. Under low-heat conditions, excess heat sinks not only waste materials but also increase the weight of the frame, while under high-heat conditions, the fixed heat dissipation area is insufficient to meet cooling requirements. Cooling devices using cooling fans force airflow to remove heat. However, this method also has several shortcomings: on the one hand, cooling fans require additional power, increasing the display's energy consumption; on the other hand, fans are consumable components, prone to failure after prolonged operation, such as blade wear or motor seizure, leading to decreased heat dissipation efficiency and cumbersome repair and replacement. In addition, some traditional heat dissipation devices have complex structures and the connections between components are not stable enough. During long-term use, they are prone to loosening and falling off, which affects heat dissipation performance and the overall stability of the display screen. Utility Model Content

[0004] In view of this, the present invention provides a heat dissipation device for an LED display frame structure, which solves the drawbacks of traditional LED display frame heat dissipation devices having a fixed heat dissipation area and being unable to be flexibly adjusted. It achieves flexible adjustment of the heat dissipation area and efficient heat dissipation through a folding fan-shaped opening and closing structure.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a heat dissipation device for an LED display frame structure, comprising multiple fan-shaped heat dissipation plates, a fixed shaft, a sliding limiting device, and a frame body; the multiple fan-shaped heat dissipation plates are connected end to end by hinges to form a fan-shaped structure, the fixed shaft is located on one side of the frame body, one end of the multiple fan-shaped heat dissipation plates is hinged to the fixed shaft, and the sliding limiting device is located on the other side of the frame body to limit the unfolded or retracted state of the fan-shaped heat dissipation plates.

[0007] Through the coordination of multiple fan-shaped heat dissipation plates, a fixed shaft, and a sliding limiting device, the frame achieves a folding fan-like opening and closing function. This allows it to unfold to increase the heat dissipation area and improve efficiency when heat dissipation is needed, and to fold up when not in use, reducing space occupation and facilitating storage and handling. The main frame provides the mounting foundation for all components, ensuring the stability of the overall structure.

[0008] The fan-shaped heat sink is made of thermally conductive metal material, and the hinge and fixed shaft are also made of metal material. The fan-shaped heat sink is thermally connected to the hinge and fixed shaft.

[0009] Based on the above technical solution, the heat dissipation device for the LED display frame structure of this utility model can be further improved as follows:

[0010] The fan-shaped heat sink has an arc-shaped sheet structure, with the arc edges of adjacent fan-shaped heat sinks fitting together, and the surface of the fan-shaped heat sink is provided with several heat dissipation through holes.

[0011] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the fan-shaped heat sink has an arc-shaped sheet structure with its edges touching each other. When unfolded, it can form a continuous heat dissipation surface with a certain curvature. Compared with the planar structure, it increases the contact area with air, which helps hot air to flow more smoothly and improves the heat dissipation effect. The heat dissipation holes set on the surface further increase the air circulation path and accelerate heat dissipation.

[0012] Furthermore, the hinge includes a hinge shaft and a hinge seat that cooperate with each other. The hinge seats are respectively fixed to the connecting ends of adjacent fan-shaped heat sinks, and the hinge shaft passes through the shaft hole of the hinge seat to achieve a rotatable connection.

[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the hinge adopts the structure of hinge shaft and hinge seat, which allows adjacent fan-shaped heat dissipation plates to rotate and connect flexibly, ensuring the smoothness of the folding fan opening and closing action; this connection method is simple and reliable in structure, easy to install and disassemble, and beneficial to subsequent maintenance and repair.

[0014] Furthermore, the two ends of the fixed shaft are fixed to the sides of the frame body, and the fan-shaped heat sink is provided with a bushing adapted to the fixed shaft at one end near the fixed shaft. The bushing is sleeved on the fixed shaft to achieve a rotatable connection.

[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the two ends of the fixed shaft are fixed to the side of the frame body, providing a stable rotation fulcrum for the fan-shaped heat sink; the fan-shaped heat sink is connected to the fixed shaft through the bushing, making the rotation more flexible, while ensuring the tightness of the connection, preventing the fan-shaped heat sink from shaking or falling off during the opening and closing process, and enhancing the stability of the overall structure.

[0016] Furthermore, the slidable limiting device includes a limiting slide rail and a limiting slider. The limiting slide rail is fixedly installed on the side of the other side of the frame body, and the limiting slider is slidably disposed in the limiting slide rail. The end of the fan-shaped heat sink away from the fixed axis is connected to the limiting slider.

[0017] The beneficial effects of adopting the above-mentioned improved scheme are as follows: the sliding limit device adopts the structure of limit rail and limit slider, which can accurately limit the opening and closing state of the fan-shaped heat sink, ensuring that the fan-shaped heat sink will not move randomly during use; at the same time, the limit slider slides in the limit rail, which is convenient to operate and facilitates the quick opening and closing adjustment of the heat sink frame.

[0018] Furthermore, the limiting slider is provided with a limiting protrusion, and the limiting slide rail is provided with a plurality of limiting slots that are adapted to the limiting protrusion. The fan-shaped heat sink is fixed in the unfolded or retracted state by the limiting protrusion engaging with the limiting slot.

[0019] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the limiting protrusion on the limiting slider cooperates with the limiting slot on the limiting slide rail to reliably fix the fan-shaped heat sink when it is unfolded or retracted to a specific position, preventing it from being displaced due to external force, and further enhancing the stability and reliability of the heat sink frame structure; multiple limiting slots can meet the needs of different unfolding angles, and users can adjust them according to actual heat dissipation needs.

[0020] Furthermore, the main body of the frame is a rectangular frame structure, and the fixed axis and the limiting slide rail are arranged parallel to each other, both in the same direction as the side length of the rectangular frame structure.

[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the main frame adopts a rectangular frame structure, which is regular and easy to install and adapt to the LED display screen; the fixed axis and the limiting slide rail are set parallel to each other and consistent with the side length direction, which ensures that the fan-shaped heat sink is subjected to uniform force and stable movement trajectory during opening and closing, and also makes the overall structure more compact and space utilization more efficient.

[0022] Furthermore, the inner side of the frame body is provided with a mounting groove for mounting an LED display screen, and the fan-shaped heat sink is located on the outer side of the frame body.

[0023] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the mounting groove on the inner side of the frame body facilitates the installation and disassembly of the LED display screen, ensuring the firmness and stability of the display screen installation; the fan-shaped heat dissipation plate is located on the outer side of the frame body, which will not affect the installation and use of the display screen, and at the same time can directly contact the outside air to effectively dissipate the heat generated by the display screen.

[0024] Furthermore, the number of fan-shaped heat sinks is at least three, and the included angle formed when adjacent fan-shaped heat sinks are unfolded ranges from 0 to 180°.

[0025] The beneficial effects of adopting the above-mentioned improved scheme are as follows: at least three fan-shaped heat sinks can form a large heat dissipation area to meet the heat dissipation requirements of LED displays; the 0-180° angle range between adjacent fan-shaped heat sinks when unfolded allows users to flexibly adjust the unfolding degree of the heat sinks according to actual heat dissipation needs and space constraints, thereby improving the applicability of the device.

[0026] Furthermore, the slidable limiting device also includes a return spring, one end of which is connected to the limiting slider and the other end of which is connected to the end of the limiting slide rail, for providing elastic force to reset the limiting slider.

[0027] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: the reset spring can provide the reset force for the limit slider. After the limit on the fan-shaped heat sink is released, the limit slider can automatically reset, which is convenient for the next use. At the same time, the reset spring can also buffer the impact of external force on the limit slider to a certain extent and protect the structural integrity of the limit device.

[0028] Compared with the prior art, the beneficial effects of the heat dissipation device for the LED display frame structure provided by this utility model are:

[0029] Flexible heat dissipation area adjustment: This invention uses a sliding limiting device to control the unfolding and retraction of multiple fan-shaped heat dissipation plates, allowing for flexible adjustment of the heat dissipation area according to the actual heat generation of the LED display screen. When the display screen is operating under high load and generating significant heat, the fan-shaped heat dissipation plates can be fully unfolded, greatly increasing the contact area with air and quickly dissipating heat. During low-load operation or standby mode, the heat dissipation plates can be retracted, reducing space occupation and facilitating transportation and storage. This flexible adjustment method significantly improves heat dissipation efficiency and space utilization compared to traditional devices with fixed heat dissipation areas.

[0030] High-efficiency heat dissipation: The fan-shaped heat sink adopts an arc-shaped sheet structure with heat dissipation holes on the surface. The edges fit together, forming a continuous and curved heat dissipation surface when unfolded, significantly increasing the contact area with air compared to a planar structure. Simultaneously, the heat dissipation holes further increase the airflow path and accelerate airflow speed, allowing heat to be quickly dissipated into the surrounding environment. Furthermore, the fan-shaped heat sink, hinges, and fixing shaft are all made of thermally conductive metal materials and connected in a thermally conductive manner, enabling rapid conduction of heat generated by the LED display to the heat sink surface, further improving heat dissipation performance.

[0031] The structure is stable and reliable: the fixed shaft is fixed at both ends to the sides of the frame body, providing a stable rotation fulcrum for the fan-shaped heat sink; the fan-shaped heat sink is connected to the fixed shaft through bushings, allowing for flexible rotation and a tight connection, preventing shaking or detachment during opening and closing. The sliding limit device adopts a limit rail and limit slider structure, and through the cooperation of the limit protrusion and the limit slot, it can accurately and reliably limit the opening and closing state of the fan-shaped heat sink, preventing displacement due to external forces. The frame body adopts a rectangular frame structure, with the fixed shaft and limit rail arranged parallel to each other and consistent with the length direction of the side, ensuring uniform force and stable movement trajectory of the fan-shaped heat sink during opening and closing, enhancing the overall structural stability and reliability. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A front view of a heat dissipation device for an LED display screen frame structure;

[0034] Figure 2 This is a rear view of a heat dissipation device for an LED display screen frame structure.

[0035] The attached diagram lists the components represented by each number as follows:

[0036] 10. Fan-shaped heat sink; 20. Fixed shaft; 30. Sliding limit device; 31. Limiting slide rail; 32. Limiting slider; 33. Return spring; 40. Frame body. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0038] like Figure 1 , Figure 2 The image shows a first embodiment of a heat dissipation device for an LED display frame structure provided by this utility model. In this embodiment, it includes multiple fan-shaped heat dissipation plates 10, a fixed shaft 20, a sliding limiting device 30, and a frame body 40. The multiple fan-shaped heat dissipation plates 10 are connected end to end by hinges to form a fan-shaped structure. The fixed shaft 20 is located on one side of the frame body 40, and one end of the multiple fan-shaped heat dissipation plates 10 is hinged to the fixed shaft 20. The sliding limiting device 30 is located on the other side of the frame body 40 to limit the fan-shaped heat dissipation plates 10 to open or close.

[0039] When heat dissipation is required, manually slide the sliding limit device to release the restriction on the fan-shaped heat sink, and then unfold the fan-shaped heat sink along the fixed axis; when heat dissipation is not required or transportation is required, reverse the operation to fold the fan-shaped heat sink, and then slide the sliding limit device to fix the folded state of the fan-shaped heat sink.

[0040] In the above technical solution, the fan-shaped heat sink 10 has an arc-shaped sheet structure, the arc edges of adjacent fan-shaped heat sinks 10 are attached to each other, and the surface of the fan-shaped heat sink 10 is provided with a number of heat dissipation through holes.

[0041] Furthermore, in the above technical solution, the hinge includes a hinge shaft and a hinge seat that cooperate with each other. The hinge seats are respectively fixed to the connecting ends of adjacent fan-shaped heat sinks 10, and the hinge shaft passes through the shaft hole of the hinge seat to achieve a rotatable connection.

[0042] During the unfolding or retraction of the fan-shaped heat sink, the hinge shaft rotates freely within the shaft hole of the hinge seat, enabling changes in the angle between the fan-shaped heat sinks, making operation easy and convenient.

[0043] Furthermore, in the above technical solution, the two ends of the fixed shaft 20 are fixed to the side of the frame body 40, and the fan-shaped heat sink 10 is provided with a bushing adapted to the fixed shaft 20 at one end near the fixed shaft 20. The bushing is sleeved on the fixed shaft 20 to achieve a rotatable connection.

[0044] When the fan-shaped heat sink is opened and closed, the bushing rotates on the fixed shaft to ensure that the fan-shaped heat sink is always adjusted at a stable angle around the fixed shaft.

[0045] Furthermore, in the above technical solution, the slidable limiting device 30 includes a limiting slide rail 31 and a limiting slider 32. The limiting slide rail 31 is fixedly installed on the side of the other side of the frame body 40, and the limiting slider 32 is slidably disposed in the limiting slide rail 31. The end of the fan-shaped heat sink 10 away from the fixed shaft 20 is connected to the limiting slider 32.

[0046] When the heat sink is unfolded, push the limiting slider to slide within the limiting slide rail to release the restriction on the fan-shaped heat sink; after the heat sink is retracted, slide the limiting slider in the opposite direction to restrict the position of the fan-shaped heat sink.

[0047] Furthermore, in the above technical solution, the limiting slider 32 is provided with a limiting protrusion, and the limiting slide rail is provided with a plurality of limiting slots that are adapted to the limiting protrusion. The fan-shaped heat sink is fixed in an unfolded or retracted state by the limiting protrusion engaging with the limiting slot.

[0048] After the fan-shaped heat sink is unfolded or retracted to the appropriate position, the limiting protrusion on the limiting slider will automatically engage with the corresponding limiting slot to achieve fixation; if the angle needs to be adjusted, manually push the limiting slider to disengage the limiting protrusion from the limiting slot, readjust, and then engage it again.

[0049] Furthermore, in the above technical solution, the frame body 40 is a rectangular frame structure, and the fixed axis 20 and the limiting slide rail 31 are set in parallel, both in the same direction as the side length of the rectangular frame structure.

[0050] When installing an LED display screen, the rectangular frame structure of the mounting slot facilitates the positioning and fixing of the display screen; when operating the fan-shaped heat sink, the heat sink can be smoothly unfolded and retracted due to the reasonable setting of the fixed shaft and the limiting slide rail.

[0051] Furthermore, in the above technical solution, the inner side of the frame body 40 is provided with a mounting groove for mounting the LED display screen, and the fan-shaped heat sink 10 is located on the outer side of the frame body 40.

[0052] During installation, the LED display screen is embedded and fixed in the mounting slot; during use, if heat dissipation is required, the outer fan-shaped heat dissipation plate can be unfolded to dissipate heat.

[0053] Furthermore, in the above technical solution, the number of fan-shaped heat sinks 10 is at least three, and the included angle formed when adjacent fan-shaped heat sinks 10 are unfolded ranges from 0 to 180°.

[0054] Furthermore, in the above technical solution, the slidable limiting device 30 also includes a return spring 33, one end of which is connected to the limiting slider 32 and the other end is connected to the end of the limiting slide rail 31, for providing elastic force to reset the limiting slider 32.

[0055] Once the sliding limit slider releases its restriction on the fan-shaped heat sink, the reset spring will automatically pull the limit slider back to its initial position, ready for the next limit operation.

[0056] Specifically, the principle of this utility model is as follows:

[0057] This invention is based on the fundamental principles of heat conduction and convection, achieving efficient heat dissipation through an innovative structural design. In terms of heat conduction, the heat generated by the LED display screen is first transferred to the frame body through contact with the mounting groove on the inner side of the frame. Since the fan-shaped heat sink, hinges, and fixing shaft are all made of thermally conductive metal and connected in a thermally conductive manner, heat can be rapidly conducted from the frame body to the surface of the fan-shaped heat sink. The metal material has excellent thermal conductivity, enabling it to transfer heat to all parts of the heat sink in a short time, laying the foundation for subsequent heat dissipation.

[0058] Regarding thermal convection, when heat dissipation is required, the restriction on the fan-shaped heat sink can be released by manually sliding the sliding limit device, allowing the fan-shaped heat sink to unfold along a fixed axis. The fan-shaped heat sink has an arc-shaped sheet structure with its edges fitting together, forming a continuous heat dissipation surface with a certain curvature after unfolding. Compared to a planar structure, this greatly increases the contact area with air. At the same time, the heat dissipation holes on the surface of the heat sink further increase the airflow path, allowing air to flow more smoothly across the surface of the heat sink. According to the principle of thermal convection, air exchanges heat with the surface of the heat sink; hot air rises, and cold air replenishes it, forming natural convection, thereby carrying away the heat from the surface of the heat sink.

[0059] The sliding limit device design ensures the stability of the fan-shaped heat sink in both unfolded and retracted states. The cooperation between the limit rail and the limit slider, as well as the engagement of the limit protrusion and the limit slot, precisely restricts the position of the fan-shaped heat sink, preventing movement due to external forces during use. The return spring allows the limit slider to automatically reset after being released, facilitating subsequent operations and ensuring the continuity and convenience of the entire device's operation.

[0060] Furthermore, the main frame adopts a rectangular frame structure, with the fixed axis and limiting slide rail arranged parallel to each other and aligned with the length direction of the side. This structural design ensures that the fan-shaped heat sinks are subjected to uniform force and have a stable movement trajectory during opening and closing. There are at least three fan-shaped heat sinks, and adjacent fan-shaped heat sinks can be adjusted within a 0-180° range when unfolded. Users can flexibly adjust the unfolding degree of the heat sinks according to actual heat dissipation needs and space constraints, further optimizing heat convection and achieving efficient heat dissipation. When not in use or during transportation, the fan-shaped heat sinks can be folded up, reducing space occupation and facilitating storage and handling, demonstrating the practicality and flexibility of the device design.

Claims

1. A heat dissipation device for an LED display screen frame structure, characterized in that, It includes multiple fan-shaped heat sinks, a fixed shaft, a sliding limiting device, and a frame body; the multiple fan-shaped heat sinks are connected end to end by hinges to form a fan-shaped structure, the fixed shaft is set on one side of the frame body, one end of the multiple fan-shaped heat sinks is hinged to the fixed shaft, and the sliding limiting device is set on the other side of the frame body to limit the fan-shaped heat sinks to open or close.

2. The heat dissipation device for an LED display screen frame structure according to claim 1, characterized in that, The fan-shaped heat sink has an arc-shaped sheet structure, with the arc edges of adjacent fan-shaped heat sinks fitting together, and the surface of the fan-shaped heat sink is provided with a number of heat dissipation through holes.

3. The heat dissipation device for an LED display screen frame structure according to claim 2, characterized in that, The hinge includes a hinge shaft and a hinge seat that cooperate with each other. The hinge seats are respectively fixed to the connecting ends of adjacent fan-shaped heat sinks. The hinge shaft passes through the shaft hole of the hinge seat to achieve a rotatable connection.

4. The heat dissipation device for an LED display screen frame structure according to claim 3, characterized in that, The two ends of the fixed shaft are fixed to the sides of the frame body. The fan-shaped heat sink is provided with a bushing adapted to the fixed shaft at one end. The bushing is sleeved on the fixed shaft to achieve a rotatable connection.

5. A heat dissipation device for an LED display screen frame structure according to claim 4, characterized in that, The slidable limiting device includes a limiting slide rail and a limiting slider. The limiting slide rail is fixedly installed on the side of the other side of the frame body, and the limiting slider is slidably disposed in the limiting slide rail. The end of the fan-shaped heat dissipation plate away from the fixed axis is connected to the limiting slider.

6. The heat dissipation device for an LED display screen frame structure according to claim 5, characterized in that, The limiting slider is provided with a limiting protrusion, and the limiting slide rail is provided with a plurality of limiting slots that are adapted to the limiting protrusion. The fan-shaped heat sink is fixed in the unfolded or retracted state by the limiting protrusion engaging with the limiting slot.

7. A heat dissipation device for an LED display screen frame structure according to claim 6, characterized in that, The main body of the frame is a rectangular frame structure, and the fixed axis and the limiting slide rail are arranged parallel to each other, both in the same direction as the side length of the rectangular frame structure.

8. A heat dissipation device for an LED display screen frame structure according to claim 7, characterized in that, The inner side of the frame body is provided with a mounting groove for mounting an LED display screen, and the fan-shaped heat sink is located on the outer side of the frame body.

9. A heat dissipation device for an LED display screen frame structure according to claim 8, characterized in that, The number of fan-shaped heat sinks is at least three, and the included angle formed when adjacent fan-shaped heat sinks are unfolded ranges from 0 to 180°.

10. A heat dissipation device for an LED display screen frame structure according to claim 9, characterized in that, The slidable limiting device also includes a return spring, one end of which is connected to the limiting slider and the other end of which is connected to the end of the limiting slide rail, for providing elastic force to reset the limiting slider.

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