LED projection lamp with bionic heat dissipation structure

Abstract

The utility model relates to the technical field of LED lamps, in particular to an LED projection lamp with a bionic heat dissipation structure, and the LED projection lamp with the bionic heat dissipation structure comprises a mounting seat and a nest-shaped metal shell; a cylindrical sleeve is arranged in the middle of the upper surface of the mounting base, a rotating table is rotationally connected to the inner side face of the cylindrical sleeve, a first lug plate is arranged in the middle of the upper surface of the rotating table, the lower end of the outer side face of the nest-shaped metal shell is mounted on the first lug plate, and spiral cooling fins are evenly distributed on the periphery of the outer side face of the nest-shaped metal shell. Through the bionic design of the nest-shaped metal shell and the spiral heat dissipation fins, the heat dissipation surface area is greatly increased, heat exchange is effectively promoted, efficient heat dissipation can be achieved without depending on a forced air cooling system, and compared with a traditional flat plate type heat dissipation fin, the heat dissipation area and the air contact efficiency are remarkably improved; and the heat dissipation requirement of a high-power LED module of more than 200W is particularly met.

Description

Technical Field

[0001] The present application relates to the technical field of LED lamps, and specifically to an LED floodlight with a bionic heat dissipation structure. Background Art

[0002] High-power LED floodlights are widely used in landscape, architecture and sports lighting due to their high brightness, energy saving and environmental protection. However, when working, 60%-70% of the electrical energy of LED floodlights is converted into heat energy, which causes the junction temperature of the lamp beads to rise. Heat dissipation is required in time to avoid the increase of the junction temperature of the lamp beads.

[0003] The current mainstream heat dissipation solution relies on the metal outer shell of the floodlight and the heat dissipation metal sheet installed at the bottom of the outer shell. It has the following significant defects in specific use. Since the metal radiator relies on natural convection, the temperature of the lamp beads is very likely to rise abnormally when the heat dissipation surface area is insufficient, thus affecting its service life; another common heat dissipation solution is to install a forced air cooling system. Although it can improve the heat dissipation efficiency of the lamp beads, the noise and energy consumption are both high; these defects cause the traditional heat dissipation structure to be difficult to efficiently export heat when dealing with high-power LED modules above 200W, resulting in accelerated lamp bead attenuation and shortened life, which seriously restricts its performance and reliability. Utility Model Content

[0004] The present application provides an LED floodlight with a bionic heat dissipation structure, which effectively improves the heat dissipation efficiency by increasing the contact area between the metal shell and the outside world. At the same time, the heat generated by the lamp beads when working can be quickly discharged, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an LED floodlight with a bionic heat dissipation structure, comprising a mounting base and a bird's nest-shaped metal shell; a cylindrical sleeve is provided in the middle of the upper surface of the mounting base, and the inner side surface of the cylindrical sleeve is rotatably connected to a rotating table, an ear plate is provided in the middle of the upper surface of the rotating table, and the lower end of the outer side surface of the bird's nest-shaped metal shell is installed on the ear plate.

[0006] The outer side surface of the bird's nest-shaped metal shell is evenly distributed with spiral heat dissipation fins, the bottom of the inner side surface of the bird's nest-shaped metal shell is paved with a second thermal conductive silicone layer, the upper end of the inner side surface of the bird's nest-shaped metal shell is provided with a lens and a metal bracket from top to bottom, a plurality of LED lamp beads are installed on the metal bracket, a metal packaging cover is provided at the lower end of the metal bracket, a plurality of thermal conductive copper tubes are provided on the lower surface of the metal packaging cover, the lower ends of the thermal conductive copper tubes are inserted into the interior of the second thermal conductive silicone layer, and a controller is provided at the bottom of the inner side surface of the bird's nest-shaped metal shell.

[0007] Preferably, the upper surface edge of the mounting seat is provided with at least one mounting hole.

[0008] Preferably, the rotating table is fixedly connected to the cylindrical sleeve by screws.

[0009] Preferably, the number of the screws is not less than one, and the screw is threadedly connected to the threaded hole arranged on the outer side of the cylindrical sleeve. An annular groove is provided in the middle of the outer side of the rotating table, and the inner side of the annular groove is evenly distributed with teeth, and the end of the screw is plug-in corresponding to the tooth groove.

[0010] Preferably, a second ear plate is provided at the lower end of the outer side surface of the bird's nest-shaped metal shell, and a positioning screw is fixedly connected to the outer side surface of the first ear plate, and the positioning screw is fixed to the second ear plate through a positioning nut.

[0011] Preferably, a thermally conductive silicone layer 1 is provided inside the metal packaging cover, and the lower section of the LED lamp bead is located inside the thermally conductive silicone layer 1.

[0012] Compared with the prior art, the beneficial effects of this application are:

[0013] 1. This application greatly increases the heat dissipation surface area through the bionic design of the bird's nest-shaped metal shell and the spiral heat dissipation fins, effectively promotes the heat exchange, and can achieve efficient heat dissipation without relying on a forced air cooling system. Compared with traditional flat heat sinks, the heat dissipation area and air contact efficiency are significantly improved, which is especially suitable for the heat dissipation needs of high-power LED modules above 200W;

[0014] 2. This application uses a heat-conducting copper tube and a double-layer heat-conducting silicone layer to form an efficient heat conduction chain: the heat of the LED lamp beads is quickly transferred to the heat-conducting copper tube through the metal packaging cover; the heat is quickly transferred to the bottom high-thermal conductivity silicone layer by the heat-conducting copper tube; the heat is finally evenly diffused to the bird's nest-shaped shell and spiral fins to achieve rapid heat extraction;

[0015] 3. This application avoids the problem of local heat accumulation in traditional solutions, and the overall heat distribution is more uniform, and the junction temperature of the lamp beads is significantly reduced; and the forced air cooling system is completely abandoned, and efficient cooling is achieved only through passive heat dissipation of the bionic structure, which completely solves the noise problem of traditional air cooling solutions and reduces system energy consumption, meeting the needs of energy conservation and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of this application;

[0017] Figure 2 This is the main cross-sectional view of this application.

[0018] In the figure: 1 lens, 2 spiral heat sink fins, 3 mounting base, 4 screws, 5 cylindrical sleeves, 6 rotating table, 7 mounting holes, 8 bird's nest-shaped metal shell, 9 positioning screws, 10 positioning nuts, 11 tooth grooves, 12 ear plate 1, 13 ear plate 2, 14 thermal conductive copper tube, 15 LED lamp beads, 16 thermal conductive silicone layer 1, 17 metal bracket, 18 metal packaging cover, 19 thermal conductive silicone layer 2, 20 controller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0020] In the description of this application, if the orientation description is involved, for example, the orientation or position relationship indicated by "upper", "lower", "front", "back", "left", "right", etc. is based on the attached Figure 2 The orientation or position relationship shown is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation of the present application. When a feature is referred to as being "set", "fixed", or "connected" to another feature, it can be directly set, fixed, or connected to the other feature, or it can be indirectly set, fixed, or connected to the other feature.

[0021] See also Figure 1-2 The present application provides the following technical solutions: an LED floodlight with a bionic heat dissipation structure, comprising a mounting base 3 and a bird's nest-shaped metal shell 8; a cylindrical sleeve 5 is provided in the middle of the upper surface of the mounting base 3, and a rotating platform 6 is rotatably connected to the inner side of the cylindrical sleeve 5, and an ear plate 12 is provided in the middle of the upper surface of the rotating platform 6, and the lower end of the outer side surface of the bird's nest-shaped metal shell 8 is installed on the ear plate 12.

[0022] Specifically, the position of the bird's nest-shaped metal shell 8 can be selectively adjusted through the rotating platform 6 .

[0023] The outer side surface of the bird's nest-shaped metal shell 8 is evenly distributed with spiral heat dissipation fins 2, the bottom of the inner side surface of the bird's nest-shaped metal shell 8 is paved with a second thermal conductive silicone layer 19, the upper end of the inner side surface of the bird's nest-shaped metal shell 8 is provided with a lens 1 and a metal bracket 17 from top to bottom, a plurality of LED lamp beads 15 are installed on the metal bracket 17, a metal packaging cover 18 is provided at the lower end of the metal bracket 17, a plurality of thermal conductive copper tubes 14 are provided on the lower surface of the metal packaging cover 18, the lower ends of the thermal conductive copper tubes 14 are inserted into the interior of the second thermal conductive silicone layer 19, and a controller 20 is provided at the bottom of the inner side surface of the bird's nest-shaped metal shell 8.

[0024] Specifically, the provision of the spiral heat dissipation fins 2 effectively increases the contact area between the bird's nest-shaped metal shell 8 and the air, thereby improving the heat dissipation efficiency of the LED lamp beads 15 , and the lens 1 is sealed and connected to the bird's nest-shaped metal shell 8 .

[0025] Furthermore, at least one mounting hole 7 is provided on the edge of the upper surface of the mounting seat 3 .

[0026] Specifically, there are four mounting holes 7 , which are evenly distributed in a circular shape on the edge of the upper surface of the mounting seat 3 .

[0027] Furthermore, the rotating platform 6 is fixedly connected to the cylindrical sleeve 5 by means of screws 4 .

[0028] Specifically, after the position adjustment of the rotating table 6 is completed, the position of the rotating table 6 can be fixed by tightening the screws 4 .

[0029] Furthermore, the number of the screws 4 is not less than one, and the screw 4 is threadedly connected to the threaded hole arranged on the outer side of the cylindrical sleeve 5. An annular groove is provided in the middle of the outer side of the rotating table 6, and the inner side of the annular groove is evenly distributed with tooth grooves 11 in an annular manner. The end of the screw 4 is plugged into and corresponds to the tooth groove 11.

[0030] Specifically, there are two screws 4 , and the screws 4 are rotated so that the ends of the screws 4 are inserted into the inside of the tooth grooves 11 , thereby preventing the rotating platform 6 from continuing to rotate.

[0031] Furthermore, a second ear plate 13 is provided at the lower end of the outer side surface of the bird's nest-shaped metal shell 8 , and a positioning screw 9 is fixedly connected to the outer side surface of the ear plate 12 , and the positioning screw 9 is fixed to the second ear plate 13 through a positioning nut 10 .

[0032] Specifically, after the position of the bird's nest-shaped metal shell 8 is adjusted in pitch, the position of the bird's nest-shaped metal shell 8 can be fixed by locking the positioning nut 10 .

[0033] Furthermore, a heat-conducting silicone layer 16 is provided inside the metal packaging cover 18 , and the lower section of the LED lamp bead 15 is located inside the heat-conducting silicone layer 16 .

[0034] Specifically, the provision of the thermally conductive silicone layer 16 can effectively introduce the heat generated by the LED lamp beads 15 into the metal packaging cover 18 .

[0035] Specifically, bolts are used to pass through the mounting holes 7 to fix the mounting base 3 at the mounting position of the floodlight, and then the screws 4 and the positioning nuts 10 are loosened to rotate and pitch the position of the bird's nest-shaped metal shell 8, and then the screws 4 and the positioning nuts 10 are locked to fix the position of the bird's nest-shaped metal shell 8.

[0036] The heat generated when the LED lamp bead 15 is lit is transmitted to the metal packaging cover 18 through the thermal conductive silicone layer 1 16, and finally transmitted to the bird's nest-shaped metal shell 8 and the thermal conductive copper tube 14 through the metal packaging cover 18, and finally introduced into the thermal conductive silicone layer 2 19 through the thermal conductive copper tube 14. The heat is transmitted to the bird's nest-shaped metal shell 8 through the thermal conductive silicone layer 2 19, and the spiral heat dissipation fins 2 arranged on the outer surface of the bird's nest-shaped metal shell 8 accelerate the air heat exchange.

[0037] It is worth noting that the input end of the controller 20 is connected to the output end of the external power supply, the output end of the controller 20 is electrically connected to the input end of the LED lamp bead 15, and the controller 20 is a PWM dimming controller.

[0038] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An LED floodlight with a bionic heat dissipation structure, characterized in that: It comprises a mounting seat (3) and a bird's nest-shaped metal shell (8); a cylindrical sleeve (5) is provided in the middle of the upper surface of the mounting seat (3); the inner side surface of the cylindrical sleeve (5) is rotatably connected to a rotating platform (6); an ear plate (12) is provided in the middle of the upper surface of the rotating platform (6); and the lower end of the outer side surface of the bird's nest-shaped metal shell (8) is mounted on the ear plate (12); The outer side surface of the bird's nest-shaped metal shell (8) is evenly distributed with spiral heat dissipation fins (2), the bottom of the inner side surface of the bird's nest-shaped metal shell (8) is paved with a second heat-conducting silicone layer (19), the upper end of the inner side surface of the bird's nest-shaped metal shell (8) is provided with a lens (1) and a metal bracket (17) in order from top to bottom, a plurality of LED lamp beads (15) are mounted on the metal bracket (17), a metal packaging cover (18) is provided at the lower end of the metal bracket (17), a plurality of heat-conducting copper tubes (14) are provided on the lower surface of the metal packaging cover (18), the lower ends of the heat-conducting copper tubes (14) are inserted into the interior of the second heat-conducting silicone layer (19), and a controller (20) is provided at the bottom of the inner side surface of the bird's nest-shaped metal shell (8).

2. The LED floodlight with a bionic heat dissipation structure according to claim 1, characterized in that: The upper surface edge of the mounting seat (3) is provided with at least one mounting hole (7).

3. The LED floodlight with a bionic heat dissipation structure according to claim 1, characterized in that: The rotating platform (6) is fixedly connected to the cylindrical sleeve (5) via screws (4).

4. The LED floodlight with a bionic heat dissipation structure according to claim 3, characterized in that: The number of the screw (4) is not less than one, and the screw (4) is threadedly connected to a threaded hole provided on the outer side of the cylindrical sleeve (5). An annular groove is provided in the middle of the outer side of the rotating table (6), and tooth grooves (11) are evenly distributed in an annular manner on the inner side of the annular groove. The end of the screw (4) is plugged into and corresponds to the tooth groove (11).

5. The LED floodlight with a bionic heat dissipation structure according to claim 1, characterized in that: A second ear plate (13) is provided at the lower end of the outer side surface of the bird's nest-shaped metal shell (8), and a positioning screw (9) is fixedly connected to the outer side surface of the first ear plate (12), and the positioning screw (9) is fixed to the second ear plate (13) via a positioning nut (10).

6. The LED floodlight with a bionic heat dissipation structure according to claim 1, characterized in that: A heat-conducting silicone layer (16) is provided inside the metal packaging cover (18), and the lower section of the LED lamp bead (15) is located inside the heat-conducting silicone layer (16).

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