CN222950862U - LED floodlight with bionic heat dissipation structure - Google Patents

Abstract

The application relates to the technical field of LED lamps, in particular to an LED projection lamp with a bionic heat dissipation structure, which comprises a mounting seat and a nest-shaped metal shell, wherein a cylindrical sleeve is arranged in the middle of the upper surface of the mounting seat, a rotary table is rotatably connected to the inner side surface of the cylindrical sleeve, an ear plate I is arranged in the middle of the upper surface of the rotary table, the lower end of the outer side surface of the nest-shaped metal shell is arranged on the ear plate I, and spiral heat dissipation fins are uniformly distributed on the periphery of the outer side surface of the nest-shaped metal shell.

Description

LED projection lamp with bionic heat dissipation structure

Technical Field

The application relates to the technical field of LED lamps, in particular to an LED projection lamp with a bionic heat dissipation structure.

Background

The high-power LED projection lamp has the advantages of high brightness, energy conservation, environmental protection and the like, and is widely applied to the fields of landscapes, buildings and sports illumination. However, 60% -70% of the electric energy of the LED spot lamp is converted into heat energy during working, so that the junction temperature of the lamp is increased, and heat needs to be dissipated in time to avoid the increase of the junction temperature of the lamp.

The current mainstream heat dissipation scheme is that a metal outer shell of a projection lamp and a heat dissipation metal sheet arranged at the bottom of the outer shell are relied on, when the metal heat dissipation device is particularly used, the metal heat dissipation device has the following remarkable defects that the metal heat dissipation device relies on natural convection, the temperature of a lamp bead is extremely easy to be abnormally increased when the heat dissipation surface area is insufficient, so that the service life of the lamp bead is influenced, another common heat dissipation scheme is that a forced air cooling system is arranged, although the heat dissipation efficiency of the lamp bead can be improved, the noise and the energy consumption are high, the defects cause that the traditional heat dissipation structure is difficult to efficiently conduct heat when the traditional heat dissipation structure is used for a high-power LED module with the power of more than 200W, the problems of accelerated attenuation and shortened service life of the lamp bead are caused, and the performance and the reliability of the lamp bead are severely restricted.

Disclosure of utility model

The LED projection lamp with the bionic heat dissipation structure provided by the application has the advantages that the heat dissipation efficiency is effectively improved by increasing the contact area between the metal shell and the outside, and meanwhile, the heat generated by the lamp beads during working can be rapidly LED out, so that the problems in the background technology can be effectively solved.

The LED projection lamp with the bionic heat dissipation structure comprises a mounting seat and a nest-shaped metal shell, wherein a cylindrical sleeve is arranged in the middle of the upper surface of the mounting seat, the inner side surface of the cylindrical sleeve is rotatably connected with a rotary table, an ear plate I is arranged in the middle of the upper surface of the rotary table, and the lower end of the outer side surface of the nest-shaped metal shell is mounted on the ear plate I.

The outer side of the nest-shaped metal shell is uniformly provided with spiral heat dissipation fins all around, a second heat conduction silica gel layer is laid at the bottom of the inner side of the nest-shaped metal shell, a lens and a metal support are sequentially arranged at the upper end of the inner side of the nest-shaped metal shell from top to bottom, a plurality of LED lamp beads are mounted on the metal support, a metal packaging cover is arranged at the lower end of the metal support, a plurality of heat conduction copper tubes are arranged on the lower surface of the metal packaging cover, the lower ends of the heat conduction copper tubes are inserted into the second heat conduction silica gel layer, and a controller is arranged at the bottom of the inner side of the nest-shaped metal shell.

Preferably, at least one mounting hole is formed in the edge of the upper surface of the mounting seat.

Preferably, the rotary table is fixedly connected with the cylindrical sleeve through a screw.

Preferably, the number of the screws is not less than one, the screws are in threaded connection with threaded holes arranged on the outer side face of the cylindrical sleeve, an annular groove is arranged in the middle of the outer side face of the rotary table, tooth grooves are uniformly distributed on the inner side face of the annular groove in an annular mode, and the end portions of the screws correspond to the tooth grooves in an inserting mode.

Preferably, the lower end of the outer side surface of the nest-shaped metal shell is provided with a second lug plate, the outer side surface of the first lug plate is fixedly connected with a positioning screw rod, and the positioning screw rod is fixed on the second lug plate through a positioning nut.

Preferably, a first heat-conducting silica gel layer is arranged in the metal packaging cover, and the lower section of the LED lamp bead is positioned in the first heat-conducting silica gel layer.

Compared with the prior art, the application has the beneficial effects that:

1. According to the application, through the bionic design of the bird nest-shaped metal shell and the spiral radiating fins, the radiating surface area is greatly increased, the heat exchange is effectively promoted, the efficient heat dissipation can be realized without depending on a forced air cooling system, compared with the traditional flat plate type radiating fin, the radiating area and the air contact efficiency are remarkably improved, and the heat dissipation device is particularly suitable for the radiating requirement of a high-power LED module above 200W;

2. The application adopts a heat conduction copper pipe and a double-layer heat conduction silica gel layer to form a high-efficiency heat conduction chain, wherein the heat of an LED lamp bead is quickly transferred to the heat conduction copper pipe through a metal packaging cover;

3. The application avoids the problem that heat is accumulated locally in the traditional scheme, has more uniform overall heat distribution and obviously reduces the junction temperature of the lamp beads, and completely abandons the forced air cooling system, realizes high-efficiency cooling only by passive heat dissipation of a bionic structure, thoroughly solves the noise problem of the traditional air cooling scheme, reduces the energy consumption of the system and meets the energy-saving and environment-friendly requirements.

Drawings

FIG. 1 is a schematic diagram of the structure of the present application;

fig. 2 is a front cross-sectional view of the present application.

In the figure, a lens, a spiral radiating fin, a mounting seat, a screw, a cylindrical sleeve 5, a rotary table 6, a mounting hole 7, a nest-shaped metal shell 8, a positioning screw 9, a positioning nut 10, a tooth socket 11, a first ear plate 12, a second ear plate 13, a heat conducting copper pipe 14, a lamp bead 15 LED, a first heat conducting silica gel layer 16, a metal bracket 17, a metal packaging cover 18, a second heat conducting silica gel layer 19 and a controller 20 are arranged on the substrate.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the description of the present application, if an orientation description such as "upper", "lower", "front", "rear", "left", "right", etc. is referred to, it is merely for convenience of description of the present application and simplification of the description, and it is not indicated or implied that the apparatus or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. When a feature is referred to as being "disposed," "secured" or "connected" to another feature, it can be directly disposed, secured or connected to the other feature or it can be indirectly disposed, secured or connected to the other feature.

Referring to fig. 1-2, the application provides an LED projection lamp with a bionic heat dissipation structure, which comprises a mounting seat 3 and a nest-shaped metal shell 8, wherein a cylindrical sleeve 5 is arranged in the middle of the upper surface of the mounting seat 3, a rotary table 6 is rotatably connected with the inner side surface of the cylindrical sleeve 5, an ear plate I12 is arranged in the middle of the upper surface of the rotary table 6, and the lower end of the outer side surface of the nest-shaped metal shell 8 is arranged on the ear plate I12.

Specifically, the position of the nest-shaped metal housing 8 can be selectively adjusted by the rotary table 6.

The outer side of the bird nest-shaped metal shell 8 is uniformly distributed with spiral heat radiation fins 2, a second heat conduction silica gel layer 19 is laid at the bottom of the inner side of the bird nest-shaped metal shell 8, a lens 1 and a metal support 17 are sequentially arranged at the upper end of the inner side of the bird nest-shaped metal shell 8 from top to bottom, a plurality of LED lamp beads 15 are arranged on the metal support 17, a metal packaging cover 18 is arranged at the lower end of the metal support 17, a plurality of heat conduction copper tubes 14 are arranged on the lower surface of the metal packaging cover 18, the lower ends of the heat conduction copper tubes 14 are inserted into the second heat conduction silica gel layer 19, and a controller 20 is arranged at the bottom of the inner side of the bird nest-shaped metal shell 8.

Specifically, the contact area between the nest-shaped metal shell 8 and the air is effectively increased due to the arrangement of the spiral heat radiation fins 2, so that the heat radiation efficiency of the LED lamp beads 15 is improved, and the lens 1 is in sealing connection with the nest-shaped metal shell 8.

Further, at least one mounting hole 7 is provided at the edge of the upper surface of the mounting seat 3.

Specifically, the number of the mounting holes 7 is four, and the four mounting holes 7 are annularly and uniformly distributed on the edge of the upper surface of the mounting seat 3.

Further, the rotary table 6 is fixedly connected with the cylindrical sleeve 5 through the screw 4.

Specifically, after the position adjustment of the turntable 6 is completed, the position of the turntable 6 can be fixed by tightening the screw 4.

Further, the number of the screws 4 is not less than one, the screws 4 are in threaded connection with threaded holes arranged on the outer side face of the cylindrical sleeve 5, an annular groove is formed in the middle of the outer side face of the rotary table 6, tooth grooves 11 are uniformly distributed on the inner side face of the annular groove in an annular mode, and the end portions of the screws 4 are in splicing correspondence with the tooth grooves 11.

Specifically, the number of screws 4 is two, and the screws 4 are rotated so that the ends of the screws 4 are inserted into the inside of the tooth grooves 11, whereby the turntable 6 can be prevented from continuing to rotate.

Furthermore, the lower end of the outer side surface of the nest-shaped metal shell 8 is provided with a second lug plate 13, the outer side surface of the first lug plate 12 is fixedly connected with a positioning screw rod 9, and the positioning screw rod 9 is fixed on the second lug plate 13 through a positioning nut 10.

Specifically, after the position of the nest-shaped metal shell 8 is adjusted in a pitching manner, the position of the nest-shaped metal shell 8 can be fixed through locking the positioning nut 10.

Further, a first heat conductive silica gel layer 16 is disposed in the metal packaging cover 18, and the lower section of the led lamp bead 15 is located in the first heat conductive silica gel layer 16.

Specifically, the first heat-conducting silica gel layer 16 is configured to effectively guide heat generated by the LED lamp beads 15 into the metal packaging cover 18.

Specifically, the mounting base 3 is fixed at the mounting position of the projector by using bolts through the mounting holes 7, then the bolts 4 and the positioning nuts 10 are loosened, the position of the nest-shaped metal housing 8 is adjusted in a rotating and pitching manner, and then the bolts 4 and the positioning nuts 10 are locked to fix the position of the nest-shaped metal housing 8.

The heat generated when the LED lamp beads 15 are lightened is transferred into the metal packaging cover 18 through the first heat-conducting silica gel layer 16, finally transferred into the nest-shaped metal shell 8 and the heat-conducting copper pipe 14 through the metal packaging cover 18, finally transferred into the second heat-conducting silica gel layer 19 through the heat-conducting copper pipe 14, transferred into the nest-shaped metal shell 8 through the second heat-conducting silica gel layer 19, and the heat exchange of air is accelerated by the spiral heat-radiating fins 2 arranged on the outer surface of the nest-shaped metal shell 8.

It should be noted that, the input end of the controller 20 is connected to the output end of the external power source, 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.

Although embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The LED projection lamp with the bionic heat dissipation structure is characterized by comprising a mounting seat (3) and a nest-shaped metal shell (8), wherein a cylindrical sleeve (5) is arranged in the middle of the upper surface of the mounting seat (3), a rotary table (6) is rotatably connected with the inner side surface of the cylindrical sleeve (5), an ear plate I (12) is arranged in the middle of the upper surface of the rotary table (6), and the lower end of the outer side surface of the nest-shaped metal shell (8) is mounted on the ear plate I (12);

The outer lateral surface equipartition of bird's nest shape metal casing (8) has spiral heat radiation fins (2) all around, heat conduction silica gel layer two (19) have been laid to the medial surface bottom of bird's nest shape metal casing (8), lens (1) and metal support (17) are equipped with from last down in proper order to the medial surface upper end of bird's nest shape metal casing (8), install a plurality of LED lamp pearls (15) on metal support (17), the lower extreme of metal support (17) is equipped with metal encapsulation cover (18), the lower surface of metal encapsulation cover (18) is equipped with a plurality of heat conduction copper pipes (14), the inside of heat conduction silica gel layer two (19) is inserted to the lower extreme of heat conduction copper pipe (14), the medial surface bottom of bird's nest shape metal casing (8) is equipped with controller (20).

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

3. The LED floodlight with the bionic heat dissipation structure according to claim 1, wherein the rotating table (6) is fixedly connected with the cylindrical sleeve (5) through a screw (4).

4. The LED floodlight with the bionic radiating structure according to claim 3, wherein the number of the bolts (4) is not less than one, the bolts (4) are in threaded connection with threaded holes formed in the outer side face of the cylindrical sleeve (5), an annular groove is formed in the middle of the outer side face of the rotary table (6), tooth grooves (11) are uniformly distributed in the annular mode on the inner side face of the annular groove, and the end portions of the bolts (4) are in splicing correspondence with the tooth grooves (11).

5. The LED floodlight with the bionic heat dissipation structure according to claim 1, wherein a second lug plate (13) is arranged at the lower end of the outer side face of the nest-shaped metal shell (8), a positioning screw rod (9) is fixedly connected to the outer side face of the first lug plate (12), and the positioning screw rod (9) is fixed to the second lug plate (13) through a positioning nut (10).

6. The LED floodlight with the bionic heat dissipation structure according to claim 1, wherein a first heat conducting silica gel layer (16) is arranged in the metal packaging cover (18), and the lower section of the LED lamp bead (15) is located in the first heat conducting silica gel layer (16).