CN213040331U

CN213040331U - LED lighting device

Info

Publication number: CN213040331U
Application number: CN202022094298.0U
Authority: CN
Inventors: 张跃宗; 李世国; 李春霞; 王旭
Original assignee: Shenzhen Institute of Information Technology
Current assignee: Shenzhen Institute of Information Technology
Priority date: 2020-09-21
Filing date: 2020-09-21
Publication date: 2021-04-23
Anticipated expiration: 2030-09-21

Abstract

The utility model discloses a LED lighting device comprises a lamp holder, a radiator, an LED light source assembly and a lampshade, wherein the lamp holder is arranged at the bottom of the radiator, the LED light source assembly is arranged at the top of the radiator, and the lampshade is arranged on the radiator; the radiator comprises a radiating base body and radiating fins formed by extending the periphery of the middle part of the radiating base body; the lampshade comprises a base part and a mounting part formed by extending the periphery of the base part, an air exchange hole is arranged between the base part and the mounting part, and a heat dissipation channel is formed by a gap between the air exchange hole and the heat dissipation fins; the utility model has the advantages that the air exchange holes are arranged on the lampshade, and the gaps between the air exchange holes and the radiating fins form the radiating channels, so that the up-and-down convection of air after the LED illuminating device is installed is realized, and the radiating efficiency of the radiator is improved; meanwhile, the LED light source of the LED lighting device is hidden and the light emitting is softer by arranging the optical lens and the anti-dazzle plate.

Description

LED lighting device

Technical Field

The utility model relates to the field of lighting technology, especially, relate to a LED lighting device.

Background

The LED has the characteristics of energy conservation, environmental protection, long service life, small volume and the like, and is widely applied to the field of illumination. The heat dissipated by the LED during illumination needs to be conducted out through the medium in time, which may shorten the service life of the LED and even damage the LED. At present, the technical scheme for solving the problem of heat dissipation generally adopts aluminum materials to dissipate heat and conduct the heat to the air.

When the LED illuminating device is used, other structures except the lampshade, the light guide plate or the lens plate are hidden in the LED illuminating device after the LED illuminating device is installed, so that the heat dissipation effect of air convection is not easy to achieve. Therefore, how to improve the heat dissipation effect of the heat sink and satisfy the installation effect of the whole LED lighting device is a technical problem to be solved at present.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at overcomes prior art's above shortcoming and not enough, provides a LED lighting device that the radiating effect is good.

An LED illuminating device comprises a lamp holder, a radiator, an LED light source assembly and a lampshade, wherein the lamp holder is arranged at the bottom of the radiator, the LED light source assembly is arranged at the top of the radiator, and the lampshade is arranged on the radiator; the radiator comprises a radiating base body and radiating fins formed by extending the periphery of the middle part of the radiating base body; the lampshade comprises a base and a mounting part formed by extending the periphery of the base, an air exchange hole is arranged between the base and the mounting part, and a heat dissipation channel is formed by a gap between the air exchange hole and the heat dissipation fins.

In one embodiment, the LED light source assembly comprises an LED light source module and an optical module, the optical module is mounted on the LED light source module, the LED light source module comprises a PCB and an LED light source attached to the PCB, the optical module comprises a mounting frame, an optical lens and an anti-glare plate, the optical lens is mounted on the mounting frame, and the anti-glare plate is disposed above the optical lens; a through hole is formed in the middle of the mounting rack, and the LED light source penetrates through the through hole; the PCB and the mounting rack are mounted on the upper surface of the radiator.

In one embodiment, the base cover of the lampshade is arranged on the anti-glare plate and fixed with the radiator, and the center of the base is provided with a light-transmitting hole so that the optical module is fixed in the radiator.

In one embodiment, the anti-glare plate is provided with a grid-shaped optical refraction part.

In one embodiment, the heat sink further includes a first mounting groove and a second mounting groove, the first mounting groove is disposed at an upper end of the heat dissipation base, the second mounting groove is disposed at a lower end of the heat dissipation base, the LED light source assembly is mounted in the first mounting groove, and the lamp holder is inserted into the second mounting groove so that the lamp holder is connected to the heat sink.

In one embodiment, the tail ends of the radiating fins extend towards two sides respectively to form radiating fins, and gaps enclosed between the radiating fins are communicated with the air exchange holes to form the radiating channels.

In one embodiment, the heat sink is made of metal, thermally conductive plastic or ceramic.

Drawings

Fig. 1 is a schematic structural view of the LED lighting device of the present invention;

fig. 2 is an exploded view of the LED lighting device of fig. 1;

fig. 3 is a cross-sectional view of the LED lighting device of fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1 to 3, the utility model provides a LED lighting device, this LED lighting device's front is circular, square or other shapes, preferably circular, and it includes lamp stand 1, radiator 2, LED light source subassembly 3 and lamp shade 4, lamp stand 1 is installed in the bottom of radiator 2, LED light source subassembly 3 is installed 2 tops of radiator, lamp shade 4 is installed on radiator 2, lamp shade 4 covers and locates on LED light source subassembly 3 for radiator 2, LED light source subassembly 3 and lamp shade 4 are together fixed.

More specifically, the heat sink 2 includes a heat dissipating base 21, fins 22 formed by extending the periphery of the middle portion of the heat dissipating base 21, a first mounting groove 23, and a second mounting groove 24, the fins 22 being distributed in an annular array on the outer periphery of the heat dissipating base 21. The first mounting groove 23 is formed in the upper end of the heat dissipation base 21, the second mounting groove 24 is formed in the lower end of the heat dissipation base 21, the LED light source assembly 3 is mounted in the first mounting groove 23, and the lamp holder 1 is inserted into the second mounting groove 24 so that the lamp holder 1 is connected with the heat sink 2. The lampshade 4 comprises a base 41 and a mounting part 42 formed by extending the periphery of the base 41, the mounting part 42 is used for clamping and mounting the whole LED lighting device, an air exchange hole 43 is arranged between the base 41 and the mounting part 42, the air exchange hole 43 is distributed between the base 41 and the mounting part 42 in an annular array, the size of a gap between two adjacent radiating fins 22 is equivalent to that of the air exchange hole 43, and a radiating channel is formed by the gap between the air exchange hole 43 and the radiating fins 22. After the whole LED lighting device is installed, air is convected from top to bottom on a vertical surface after the LED lighting device is installed, and the heat dissipation efficiency of the heat sink 2 is improved.

In the radiator 2, the radiating base 21, the LED light source assembly 3 and the lampshade 4 are fixed by screws, that is, the radiating base 21 is provided with mounting holes for mounting, which belongs to the conventional technology in the field and is not described again.

In order to further improve the heat dissipation effect of the heat sink 2, the tail ends of the heat dissipation fins 22 extend towards two sides to form heat dissipation fins 25, and the gap enclosed between the heat dissipation fins 22 and the heat dissipation fins 25 is communicated with the air exchange holes 43 to form the heat dissipation channel, so that the heat dissipation effect of the whole LED lighting device is better.

The material of the heat sink 2 is one of metal, heat-conducting plastic or ceramic, and after comprehensive consideration, the heat sink is preferably made of conductive plastic.

Wherein, LED light source subassembly 3 includes LED light source module 31 and optical module 32, optical module 32 installs on LED light source module 31, LED light source module 31 includes PCB board 311 and pastes the LED light source 312 of establishing at PCB board 311, LED light source 312 is the COB light source. The optical module 32 includes a mounting frame 321, an optical lens 322 and an anti-glare plate 323, the optical lens 322 is mounted on the mounting frame 321, the anti-glare plate 323 is disposed above the optical lens 322, a rotatable buckle structure is generally disposed on the mounting frame 321, and a tail end of the optical lens 322 is clamped on the mounting frame 321, which belongs to a conventional technology that can be thought by a person skilled in the art and is not described in detail in this patent. A through hole 3211 is formed in the middle of the mounting frame 321, and the LED light source 312 penetrates through the through hole 3211; the PCB 311 and the mounting bracket 321 are mounted on the upper surface of the heat sink 2.

Wherein, in order to improve the refraction effect of the light emitted from the LED light source 312, the LED point light source is changed into a surface light source, the optical lens 322 is in a frustum shape, and a gradually decreasing refraction table is provided, because the design of the optical head lens 322 is not a main improvement point of the present application, and belongs to the conventional technical field, which is not repeated here. The antiglare plate 323 is provided with a lattice-shaped optical refraction portion 3231, the optical refraction portion 3231 is arranged in a spiral shape, and the size of the optical refraction portion 3231 varies with the change of the size of the diameter of the antiglare plate 323, that is, the larger the diameter is, the larger the size of the optical refraction portion 3231 is.

The base 41 of the lampshade 4 is covered on the antiglare plate 323 and fixed with the heat sink 2, and the center of the base 41 is provided with a light transmitting hole 411, so that the optical module 32 is fixed in the heat sink 2.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. An LED lighting device, characterized in that: the LED lamp comprises a lamp holder, a radiator, an LED light source assembly and a lampshade, wherein the lamp holder is arranged at the bottom of the radiator, the LED light source assembly is arranged at the top of the radiator, and the lampshade is arranged on the radiator; the radiator comprises a radiating base body and radiating fins formed by extending the periphery of the middle part of the radiating base body; the lampshade comprises a base and a mounting part formed by extending the periphery of the base, an air exchange hole is arranged between the base and the mounting part, and a heat dissipation channel is formed by a gap between the air exchange hole and the heat dissipation fins.

2. The LED lighting device of claim 1, wherein: the LED light source assembly comprises an LED light source module and an optical module, the optical module is arranged on the LED light source module, the LED light source module comprises a PCB and an LED light source attached to the PCB, the optical module comprises a mounting frame, an optical lens and an anti-dazzle light plate, the optical lens is arranged on the mounting frame, and the anti-dazzle light plate is arranged above the optical lens; a through hole is formed in the middle of the mounting rack, and the LED light source penetrates through the through hole; the PCB and the mounting rack are mounted on the upper surface of the radiator.

3. The LED lighting device of claim 2, wherein: the base part of the lampshade covers the anti-dazzle plate and is fixed with the radiator, the center of the base part is provided with a light transmitting hole, and the optical module is fixed in the radiator.

4. The LED lighting device of claim 2, wherein: the anti-dazzle plate is provided with a latticed optical refraction part.

5. The LED lighting device of claim 1, wherein: the radiator further comprises a first mounting groove and a second mounting groove, the upper end of the radiating base body is arranged in the first mounting groove, the lower end of the radiating base body is arranged in the second mounting groove, the LED light source assembly is arranged in the first mounting groove, and the lamp holder is inserted into the second mounting groove to enable the lamp holder to be connected with the radiator.

6. The LED lighting device of claim 1, wherein: the tail ends of the radiating fins extend towards two sides respectively to form radiating fins, and gaps formed by surrounding of the radiating fins are communicated with the air exchange holes to form the radiating channels.

7. The LED lighting device according to any one of claims 1 to 6, wherein: the radiator is made of metal, heat-conducting plastic or ceramic.