LED projection lamp with heat dissipation structure
By designing thermal conductive components and heat dissipation mechanisms, and utilizing thermally conductive silicone layers, heat pipes, liquid wicks, and heat dissipation fins to form natural convection, the problems of low heat dissipation efficiency and high noise in LED floodlights are solved, achieving a highly efficient heat dissipation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI HAMNOORD LIGHTING CO LTD
- Filing Date
- 2025-11-05
- Publication Date
- 2026-08-04
AI Technical Summary
Existing LED floodlights are inefficient when cooled naturally, and forced air cooling systems are noisy and energy-intensive, failing to effectively solve the heat dissipation problem.
It employs thermally conductive components and heat dissipation mechanisms, including a thermally conductive silicone layer, heat pipes, liquid absorber, partitions, and heat dissipation fins, to dissipate heat through natural convection. The thermally conductive components conduct heat and form a stable airflow, thereby improving heat dissipation efficiency.
It can generate a stable airflow even when natural wind is insufficient, thereby improving heat dissipation efficiency and solving the problems of low natural heat dissipation efficiency and high noise from forced air cooling.
Smart Images
Figure CN224593224U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of LED floodlight technology, specifically to an LED floodlight with a heat dissipation structure. Background Technology
[0002] LED floodlights, also known as spotlights, projectors, or spotlights, are lighting fixtures that provide illumination to a specified surface that is higher than the surrounding environment. Due to their advantages such as high efficiency and energy saving, long lifespan, environmental friendliness and health, high light quality, and dynamic control, they are widely used in architectural, commercial, and landscape lighting fields. LED floodlights generate heat during operation, which needs to be dissipated in time to avoid damage to the LED light panel. When existing LED floodlights dissipate heat during operation, part of the heat dissipation relies on the natural heat dissipation of the LED floodlight's metal casing and the heat dissipation fins installed on the outside of the casing, while the other part is dissipated through the installation of a forced air cooling system. The following problems exist: the former relies on natural convection for heat dissipation, and there is a gap between the LED light panel and the metal housing, resulting in low heat dissipation efficiency when natural wind is insufficient; the latter installs a forced air cooling system, which leads to higher noise and energy consumption. Therefore, we propose an LED floodlight with a heat dissipation structure. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide an LED floodlight with a heat dissipation structure. During the operation of the LED floodlight, heat is conducted through heat conduction components and heat dissipation mechanism to achieve heat dissipation of the LED floodlight. When natural wind is insufficient, a stable airflow can also be formed, which improves the heat dissipation efficiency and can effectively solve the problems in the background technology.
[0004] To achieve the above objectives, the present invention provides the following technical solution: an LED floodlight with a heat dissipation structure, including a lampshade, an LED light board inside the lampshade, and a heat dissipation mechanism; The heat dissipation mechanism includes a fixing plate, heat dissipation fins, a protective cover, strip openings, perforations, and heat-conducting components. The rear side of the lampshade is equipped with a protective cover, and the front side opening of the protective cover is equipped with a fixing plate. The rear side of the fixing plate is equipped with evenly distributed heat dissipation fins, all of which are wavy. The upper surface of the protective cover has evenly distributed strip openings, and the lower surface of the protective cover has evenly distributed perforations, which are distributed in a honeycomb pattern. The interior of the lampshade is equipped with heat-conducting components. During the operation of the LED floodlight, heat is conducted through the heat-conducting components and the heat dissipation mechanism to achieve heat dissipation of the LED floodlight. Even when natural wind is insufficient, a stable airflow can be formed, improving the heat dissipation efficiency.
[0005] Furthermore, the heat dissipation mechanism also includes a bracket and a thermally conductive silicone layer. The bracket is provided on the rear side of the LED light board, and a cavity area is formed between the bracket and the LED light board. The interior of the cavity area is provided with a thermally conductive silicone layer to facilitate heat conduction.
[0006] Furthermore, the heat-conducting component includes heat-conducting pipes. The evenly distributed mounting holes on the rear side of the bracket are all equipped with heat-conducting pipes. The front ends of the heat-conducting pipes are inserted into the interior of the heat-conducting silicone layer. The rear side of the heat-conducting pipes are in contact with the front side of a fixing plate to facilitate heat conduction.
[0007] Furthermore, the heat-conducting component also includes a liquid-absorbing core, a partition, and through holes. The heat-conducting pipe has a partition inside, and a liquid-absorbing core is provided in the area formed by the outer surface of the partition and the inner wall of the heat-conducting pipe. The outer surface of the partition has evenly distributed through holes on both the front and rear sides to improve the heat conduction efficiency.
[0008] Furthermore, the protective cover is provided with fixed seats on both the left and right sides, and a support frame is rotatably connected between the two fixed seats through a damping shaft. Positioning holes are provided on both the left and right sides of the rear side of the support frame to facilitate the installation of LED floodlights.
[0009] Furthermore, a drive power supply box is provided on the rear side of the protective cover, and the input end of the LED light board is electrically connected to the output end of the drive power supply box, which facilitates the projection function of the LED floodlight.
[0010] Furthermore, a lens is provided in the mounting opening on the front side of the lampshade. The lens is located on the front side of the LED light panel, which facilitates focusing the light emitted by the LED light panel and protecting the LED light panel.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This LED floodlight with a heat dissipation structure has the following advantages: The heat generated by the LED light panel is transferred to the heat pipe through the thermally conductive silicone layer. The heat is then transferred through the heat pipe wall to the liquid absorber inside the pipe. The liquid working fluid in the liquid absorber evaporates into a gaseous state upon heating, absorbing heat. The gaseous working fluid flows into the partition through the through holes, moves away from the heat source, exchanges heat with the cooler heat dissipation fins, releases heat, and condenses back into liquid working fluid, which is then absorbed by the liquid absorber and flows back. After the heat dissipation fins absorb heat, the surrounding air heats up. The hot air, due to its lower density, rises and is discharged from the top strip opening, creating a negative pressure. Under the action of negative pressure, the cool air at the bottom is drawn in through the perforated holes and flows through the heat dissipation fins, completing a natural convection flow from bottom to top for heat dissipation. Even when natural wind is insufficient, a stable airflow can be formed, improving heat dissipation efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2This is a schematic diagram of the structure of the present invention in an explosion. Figure 3 This is a rear side view of the structure of this utility model after an explosion; Figure 4 This is a cross-sectional structural schematic diagram of the heat-conducting component of this utility model.
[0013] In the diagram: 1 Lampshade, 2 LED light board, 3 Heat dissipation mechanism, 31 Fixing plate, 32 Heat dissipation fins, 33 Protective cover, 34 Strip opening, 35 Hole, 36 Thermal conductive component, 361 Heat conductive pipe, 362 Liquid absorption core, 363 Partition, 364 Through hole, 37 Bracket, 38 Thermal conductive silicone layer, 4 Fixing base, 5 Damping shaft, 6 Support frame, 7 Positioning hole, 8 Driver power supply box, 9 Lens. Detailed Implementation
[0014] 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.
[0015] Please see Figure 1-4This embodiment provides a technical solution: an LED floodlight with a heat dissipation structure, including a lampshade 1, an LED light board 2 inside the lampshade 1, and a heat dissipation mechanism 3. The left and right sides of the protective cover 33 are provided with fixing seats 4, and a support frame 6 is rotatably connected between the two fixing seats 4 via a damping shaft 5. (The damping shaft 5 has a metal core inside its shaft, surrounded by rubber or plastic damping pads. Tightening screws or clips increases the compression of the damping pads, thereby adjusting the friction. The damping force inside the damping shaft 5 resists gravity and external forces, allowing it to be fixed at any angle.) Positioning holes 7 are provided on the left and right sides of the rear side of the support frame 6. A driver power supply box 8 is provided on the rear side of the protective cover 33. The input end of the LED light board 2 is electrically connected to the output end of the driver power supply box 8. The power supply box 8 is a device that provides stable and compatible power to the LED light panel 2. The internal components of the power supply box include electronic circuits, which can convert and regulate the input electrical energy and output voltage, current and other power parameters that meet the requirements of the LED light panel 2, ensuring that the LED light panel 2 can operate stably, efficiently and safely. It is a key component for the power supply and management of LED floodlights. The mounting port on the front side of the lamp cover 1 is equipped with a lens 9. The lens 9 is located on the front side of the LED light panel 2. The LED floodlight is installed in a suitable position through the positioning hole 7 on the support frame 6 and bolts. Then, the lamp cover 1 can be rotated around the damping shaft 5 to change the orientation of the lamp cover 1 and the LED light panel 2. When the LED floodlight is working, the light emitted by the LED light panel 2 is projected out through the lens 9 under the control of the power supply box 8. Heat dissipation mechanism 3 includes a fixing plate 31, heat dissipation fins 32, a protective cover 33, strip-shaped openings 34, perforations 35, and a heat-conducting component 36. The rear side of the lampshade 1 is provided with a protective cover 33. The front side opening of the protective cover 33 is provided with a fixing plate 31. The rear side of the fixing plate 31 is provided with evenly distributed heat dissipation fins 32, all of which are wavy. The upper surface of the protective cover 33 has evenly distributed strip-shaped openings 34, and the lower surface of the protective cover 33 has evenly distributed perforations 35, which are honeycomb-shaped. The interior of the lampshade 1 is provided with a heat-conducting component 36. The heat dissipation mechanism 3 also includes a bracket 37 and a thermally conductive silicone layer 38. The rear side of the LED light board 2 is provided with a bracket 37. The bracket 37 and the LED light board 2 form a cavity area. The cavity area is provided with a thermally conductive silicone layer 38. During the operation of the LED floodlight, the heat generated is transferred to the heat pipe 361 through the thermally conductive silicone layer 38 in the bracket 37. The strip-shaped opening 34 and the hollow hole 35 on the protective cover 33 form a vertical convection channel. After the heat dissipation fins 32 absorb heat, the surrounding air heats up. The hot air, due to its low density, rises and is discharged from the top strip-shaped opening 34, forming a negative pressure. Under the action of negative pressure, the cold air at the bottom is drawn in from the hollow hole 35 and flows through the heat dissipation fins 32, completing the natural convection of bottom inlet and top outlet for heat dissipation. Because the heat dissipation fins 32 are wavy, the contact area with the airflow is increased, and the heat dissipation efficiency is accelerated. The heat-conducting assembly 36 includes heat-conducting pipes 361. Each of the evenly distributed mounting holes on the rear side of the bracket 37 houses a heat-conducting pipe 361 (the heat-conducting pipe 361 can be made of copper). The front ends of each heat-conducting pipe 361 are inserted into the interior of the thermally conductive silicone layer 38. The rear side of each heat-conducting pipe 361 contacts the front side of a fixing plate 31. The heat-conducting assembly 36 also includes a liquid-absorbing core 362, a partition plate 363, and a through hole 364. The partition plate 363 is located inside the heat-conducting pipe 361. A liquid-absorbing core 362 is located in the area formed by the outer surface of the partition plate 363 and the inner wall of the heat-conducting pipe 361. (The liquid-absorbing core 362 can be a sintered liquid-absorbing core. Copper powder (or nickel powder) is sintered at high temperature and adheres to the area formed by the outer surface of the partition plate 363 and the inner wall of the heat-conducting pipe 361, forming a porous structure. The interior of the liquid-absorbing core 362 contains…) The working fluid is a liquid (e.g., water, ethanol, or acetone). Uniformly distributed through holes 364 are provided on both the front and rear sides of the outer surface of the partition 363. Heat is transferred through the wall of the heat pipe 361 to the wick 362 inside the pipe. The liquid working fluid in the wick 362 evaporates rapidly into a gaseous state upon heating, absorbing a large amount of heat. The gaseous working fluid flows into the partition 363 through the through holes 364. Due to the high pressure in the direction of the heat source (LED light panel 2), the gaseous working fluid quickly moves away from the heat source (LED light panel 2). After reaching the rear end of the heat pipe 361, the gaseous working fluid contacts the fixed plate 31 and exchanges heat with the cooler heat dissipation fins 32, releasing heat and re-condensing into a liquid working fluid which is absorbed by the wick 362. The liquid working fluid then flows back to the front of the heat pipe 361 through the capillary force of the wick 362, completing one cycle.
[0016] The working principle of the LED floodlight with heat dissipation structure provided by this utility model is as follows: The LED floodlight is installed in a suitable position through the positioning hole 7 and bolts on the support frame 6. Then, the lamp cover 1 can be rotated around the damping shaft 5 to change the orientation of the lamp cover 1 and the LED light panel 2. When the LED floodlight is working, under the control of the drive power supply box 8, the light emitted by the LED light panel 2 is projected out through the lens 9. During the operation of the LED floodlight, the heat generated is transferred to the heat conduction pipe 361 through the thermally conductive silicone layer 38 in the bracket 37. The heat is transferred to the liquid absorber 362 inside the heat conduction pipe 361 through the pipe wall. The liquid working medium in the liquid absorber 362 evaporates rapidly into a gaseous state after being heated, absorbing a large amount of heat. The gaseous working medium flows into the partition 363 through the through hole 364. Due to the high pressure in the direction of the heat source (LED light panel 2), the gaseous working medium... The gaseous working fluid moves rapidly away from the heat source (LED light board 2). After reaching the rear end of the heat pipe 361, it comes into contact with the fixed plate 31 and exchanges heat with the cooler heat dissipation fins 32, releasing heat and re-condensing into liquid working fluid, which is absorbed by the liquid absorber 362. The liquid working fluid flows back to the front of the heat pipe 361 through the capillary force of the liquid absorber 362, completing one cycle. The strip-shaped opening 34 and the hollow hole 35 on the protective cover 33 form a vertical convection channel. After the heat dissipation fins 32 absorb heat, the surrounding air heats up. The hot air, due to its low density, rises and is discharged from the top strip-shaped opening 34, forming a negative pressure. Under the action of negative pressure, the cold air at the bottom is drawn in from the hollow hole 35 and flows through the heat dissipation fins 32, completing the natural convection of bottom inlet and top outlet for heat dissipation. Because the heat dissipation fins 32 are wavy, the contact area with the airflow is increased, accelerating the heat dissipation efficiency.
[0017] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An LED floodlight with a heat dissipation structure, comprising a lampshade (1), wherein an LED light panel (2) is disposed inside the lampshade (1), characterized in that: It also includes a heat dissipation mechanism (3); Heat dissipation mechanism (3): It includes a fixing plate (31), heat dissipation fins (32), protective cover (33), strip opening (34), hollow hole (35) and heat conduction component (36). The rear side of the lamp cover (1) is provided with a protective cover (33). The front side opening of the protective cover (33) is provided with a fixing plate (31). The rear side of the fixing plate (31) is provided with uniformly distributed heat dissipation fins (32). The heat dissipation fins (32) are all wavy. The upper surface of the protective cover (33) is provided with uniformly distributed strip openings (34). The lower surface of the protective cover (33) is provided with uniformly distributed hollow holes (35). The hollow holes (35) are distributed in a honeycomb pattern. The interior of the lamp cover (1) is provided with a heat conduction component (36).
2. The LED floodlight with a heat dissipation structure according to claim 1, characterized in that: The heat dissipation mechanism (3) also includes a bracket (37) and a thermally conductive silicone layer (38). The bracket (37) is provided on the rear side of the LED light board (2). A cavity area is formed between the bracket (37) and the LED light board (2). The thermally conductive silicone layer (38) is provided inside the cavity area.
3. An LED floodlight with a heat dissipation structure according to claim 2, characterized in that: The heat-conducting component (36) includes heat-conducting pipes (361). The heat-conducting pipes (361) are provided inside the uniformly distributed mounting holes on the rear side of the bracket (37). The front end of each heat-conducting pipe (361) is inserted into the interior of the heat-conducting silicone layer (38). The rear side of each heat-conducting pipe (361) is in contact with the front side of a fixing plate (31).
4. An LED floodlight with a heat dissipation structure according to claim 3, characterized in that: The heat-conducting component (36) also includes a liquid-absorbing core (362), a partition (363), and a through hole (364). The heat-conducting pipe (361) has a partition (363) inside. The area formed by the outer surface of the partition (363) and the inner wall of the heat-conducting pipe (361) has a liquid-absorbing core (362). The outer surface of the partition (363) has evenly distributed through holes (364) on both the front and rear sides.
5. An LED floodlight with a heat dissipation structure according to claim 1, characterized in that: The protective cover (33) is provided with a fixed seat (4) on both the left and right sides. A support frame (6) is rotatably connected between the two fixed seats (4) through a damping shaft (5). Positioning holes (7) are provided on both the left and right sides of the rear side of the support frame (6).
6. An LED floodlight with a heat dissipation structure according to claim 1, characterized in that: The rear side of the protective cover (33) is provided with a drive power supply box (8), and the input end of the LED light board (2) is electrically connected to the output end of the drive power supply box (8).
7. An LED floodlight with a heat dissipation structure according to claim 1, characterized in that: The lampshade (1) has a mounting opening on its front side with a lens (9) inside, and the lens (9) is located on the front side of the LED lamp panel (2).