CN217004389U

CN217004389U - Heat radiation structure of circular LED lighting lamp

Info

Publication number: CN217004389U
Application number: CN202220754476.4U
Authority: CN
Inventors: 陈伟民; 徐凌智; 叶向仁; 李玲; 汪玉平; 叶向霞
Original assignee: Senben Lighting Co ltd
Current assignee: Senben Lighting Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-19
Anticipated expiration: 2032-03-31

Abstract

The utility model provides a circular LED illuminating lamp heat dissipation structure, which comprises a circular lamp body, a wiring cover, an LED lamp panel and a transparent lampshade, wherein the wiring cover is arranged on the circular lamp body; the top of the circular lamp body is provided with a plurality of radiating ribs distributed in a scattering shape around the periphery of the wiring cover, each radiating rib consists of a wide part and a narrow part, the near end of each radiating rib is close to the wiring cover, and the height and the width of each wide part are larger than those of each narrow part. According to the LED lamp, the light beads on the printed circuit board at the bottom of the circular lamp body are concentrically distributed on the back of the position of the heat dissipation rib of the lamp body, so that the heat of the LED light beads is conductive along the heat dissipation rib of the lamp body; the upper portion of circular lamp body distributes a plurality of heat dissipation muscle with one heart, and the high higher width broad of wide portion of heat dissipation muscle helps passing the heat of LED light pearl to the great region of radiating area of heat dissipation muscle narrow portion through the lamp body to in the heat of LED light pearl has solved the local high temperature's of LED light source problem through modes conduction air such as convection current.

Description

Heat radiation structure of circular LED lighting lamp

Technical Field

The utility model relates to the technical field of lighting lamps, in particular to a heat dissipation structure of a circular LED lighting lamp.

Background

Light fixtures have been the most widely used light fixtures in current lighting designs. LED light sources are particularly sensitive to temperature. Operating an LED light source at higher temperatures can severely impact the life and luminous flux of the LED light source. The lamps used in general industry, especially the explosion-proof lamps, are usually closed lamps, the temperature of the light source of the LED lamp in the lamp is higher than that of the general lamps, and the luminous flux and the service life of the LED lamp are greatly influenced by factors such as poor ventilation condition of industrial places, severe process condition, high temperature and high humidity, continuous work, field insolation and the like.

Lighting is an important electrical industry, and lighting fixtures are used in large quantities in various industrial industries and buildings. The high-power LED lamp is a lamp which is used in a large amount in the current lighting design, is widely applied to various occasions, has the characteristics of high lighting effect, good color rendering property, no stroboflash, instant start, shock resistance and the like, particularly has the advantage of long service life, and is a maintenance-free green energy-saving light source. LED light sources, like other light sources, generate heat, approximately 75% of the energy is converted to heat, and the luminous efficiency and lifetime of the light source is strongly inversely related to the temperature of the light source, with higher temperatures resulting in lower luminous efficiency and lower lifetime. The LED is different from other light sources in that it has a small volume, is a nearly point-shaped light source, and is difficult to dissipate heat with a large power by convection, radiation, and the like.

At present, the convection is generally strengthened through increasing the radiator in the traditional LDE lamp, and the reinforcing heat radiating area makes the LED light source cooling, but the LED light source of circular LED lamp is circular distribution, and middle LED light source temperature is higher, and the heat dissipation muscle is relatively nearer can not effectively dispel the heat, still can make lamps and lanterns consume a large amount of metals, can not solve the problem of LED light source local high temperature moreover.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: aiming at the defects of local overhigh intermediate temperature and poor heat dissipation effect of the existing circular LED lamp, the heat dissipation structure of the circular LED lighting lamp is provided.

The utility model adopts the following technical scheme for solving the technical problems:

the utility model provides a circular LED illuminating lamp heat dissipation structure, which comprises a circular lamp body, a wiring cover arranged at the top of the circular lamp body, an LED lamp panel arranged at the bottom of the circular lamp body and a transparent lampshade, wherein the LED lamp panel is arranged at the top of the circular lamp body; the top of the circular lamp body is provided with a plurality of radiating ribs distributed in a scattering manner around the periphery of the wiring cover, each radiating rib consists of a wide part close to the wiring cover at the near end and a narrow part at the far end, and the height and the width of the wide part are both larger than those of the narrow parts.

Further, on the heat dissipation structure of the circular LED lighting device, the circular lamp body includes a circular flat plate and a plurality of heat dissipation ribs distributed on the top of the circular flat plate, and the circular flat plate and the plurality of heat dissipation ribs are of an integrally formed structure.

Further preferably, on the heat dissipation structure of the circular LED lighting device, the plurality of heat dissipation ribs are annularly spaced, and an included angle between adjacent heat dissipation ribs is 5 to 35 °.

Further, on the heat dissipation structure of the circular LED illuminating lamp, the top surface of the wide part and the top surface of the narrow part form an outer arc-shaped ramp smooth transition, and the gradient is 3-10 degrees.

Further, circular LED light utensil heat radiation structure on, the LED lamp plate includes printed circuit board and a plurality of LED light pearl, and is a plurality of LED light pearl is the concentric distribution in printed circuit board's lower terminal surface.

Further preferably, on the heat dissipation structure of the circular LED lighting device, a heat conductive silicone grease layer is coated on the upper end surface of the printed circuit board, and the printed circuit board is connected to the circular lamp body through a plurality of screws.

Further preferably, on the heat dissipation structure of the circular LED lighting fixture, the plurality of LED light beads are correspondingly disposed on the back of the plurality of heat dissipation ribs.

Further, on the heat dissipation structure of the circular LED illuminating lamp, the transparent lampshade is fixed at the bottom of the circular lamp body through buckling connection or screw connection.

Further preferably, circular LED light utensil heat radiation structure on, still include low hot group sand grip, low hot group sand grip be the heliciform set up in circular dull and stereotyped top, and be located a plurality of the bottom of heat dissipation muscle.

More preferably, in the heat dissipation structure of the circular LED lighting device, the height and width of the low heat set convex strip are gradually reduced from inside to outside.

By adopting the technical scheme, compared with the prior art, the utility model has the following technical effects:

according to the heat dissipation structure of the circular LED lighting lamp, the light beads on the printed circuit board at the bottom of the circular lamp body are concentrically distributed on the back of the position of the heat dissipation rib of the lamp body, so that the heat of the LED light beads is favorably conducted along the heat dissipation rib of the lamp body; the upper portion of circular lamp body distributes a plurality of heat dissipation muscle with one heart, and the wide portion of heat dissipation muscle is highly higher width broad, and its thermal resistance is lower, helps passing to the heat of LED light pearl the great region of radiating area of heat dissipation muscle narrow part through the lamp body to in the heat of LED light pearl conducts the air through modes such as convection current, the temperature of the LED light pearl of deciding LED lamps and lanterns, solved the problem of the local high temperature of LED light source.

Drawings

Fig. 1 is a schematic front view of a heat dissipation structure of a circular LED lighting fixture according to the present invention;

FIG. 2 is a schematic cross-sectional view of a heat dissipation structure of a circular LED lighting fixture according to the present invention;

FIG. 3 is a schematic bottom view of a heat dissipation structure of a circular LED lighting fixture according to the present invention;

FIG. 4 is a schematic top view of a heat dissipation structure of a circular LED lighting fixture according to the present invention;

wherein the reference symbols are:

10-round lamp body, 11-round flat plate, 12-heat dissipation rib, 13-wide part and 14-narrow part; 20-a wiring cover; 30-an LED lamp panel, 31-a printed circuit board and 32-an LED light bead; 40-transparent lampshade, 50-low heat set convex strip.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In some embodiments, as shown in fig. 1 and 2, a heat dissipation structure of a circular LED lighting fixture is provided, which mainly includes a circular lamp body 10, a wiring cover 20, an LED lamp panel 30, and a transparent lampshade 40. The wiring cover 20 is disposed on the top of the circular lamp body 10, the LED lamp panel 30 and the transparent lampshade 40 are disposed on the bottom of the circular lamp body 10.

The LED lamp aims to solve the problems that an LED light source in the middle of an existing round LED lamp is high in temperature, and a radiating rib is relatively close and cannot effectively radiate heat. As shown in fig. 3 and 4, a plurality of heat dissipation ribs 12 are disposed on the top of the circular lamp body 10 around the periphery of the wire cover 20. Each of the heat dissipating ribs 12 is composed of a wide portion 13 near the wire cover 20 and a narrow portion 14 at the distal end, and the height and width of the wide portion 13 are greater than those of the narrow portion 14, and the tops of the two ends of the heat dissipating ribs 12 are in smooth transition.

In some embodiments, as shown in fig. 2 and 4, the circular lamp body 10 includes a circular flat plate 11 and a plurality of heat dissipation ribs 12 distributed on the top of the circular flat plate 11, and the circular flat plate 11 and the plurality of heat dissipation ribs 12 are an integrated structure. The circular flat plate 11 and the plurality of heat dissipation ribs 12 are made of aluminum or aluminum alloy.

In a preferred embodiment, the plurality of heat dissipation ribs 12 are annularly spaced, and an included angle between adjacent heat dissipation ribs 12 is 5 to 35 °. For example, the number of the heat dissipation ribs 12 is 16, the heat dissipation ribs are arranged at intervals between the heat dissipation ribs and the adjacent heat dissipation ribs 12 have the same included angle, which is 22.5 °.

According to the requirement, the top surface of the wide part 13 is in straight transition to the top surface of the narrow part 14, or in smooth transition with an outer arc ramp, and the gradient is 3-10 degrees. Preferably, the slope from the top surface of the wide portion 13 to the top surface of the narrow portion 14 is 5 °.

In some embodiments, as shown in fig. 2, the LED lamp panel 30 includes a printed circuit board 31 and a plurality of LED light beads 32, and the plurality of LED light beads 32 are concentrically distributed on a lower end surface of the printed circuit board 31. And the upper end surface of the printed circuit board 31 is coated with a heat conductive silicone grease layer and is connected with the circular lamp body 10 through a plurality of screws. The plurality of LED light beads 32 are correspondingly arranged on the back of the plurality of heat dissipation ribs 12, so that heat of the LED light beads is conducted along the heat dissipation ribs of the lamp body.

In some embodiments, the transparent lampshade 40 is made of transparent glass or transparent plastic, and is fixed to the bottom of the circular lamp body 10 by a snap connection. Or fixed at the bottom of the circular lamp body 10 by adopting screw connection

In some embodiments, as shown in fig. 4, in order to further improve the heat dissipation efficiency of the middle portion of the circular lamp body 10, the heat generated by the LED lamp bead 32 is rapidly transferred to the external environment of the lamp. This heat radiation structure still includes low hot group sand grip 50, low hot group sand grip 50 be the heliciform set up in circular dull and stereotyped 11 top, and be located a plurality of the bottom of heat dissipation muscle 12. And the height and width of the low heat set rib 50 are gradually reduced from inside to outside. The low heat set convex strip 50 is made of aluminum or aluminum alloy.

The heat dissipation structure of the circular LED lighting lamp scientifically solves the heat dissipation problem that the temperature of the middle part of the LED lighting lamp is too high, prolongs the service life of the LED lighting lamp, and is reasonable in structure, good in heat dissipation performance and capable of guaranteeing the use safety of the LED lighting lamp.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, in the drawings of the disclosed embodiment of the utility model, only the structures related to the disclosed embodiment are referred to, other structures can refer to common design, and the same embodiment and different embodiments of the utility model can be combined mutually under the condition of no conflict;

finally, the above description is only a preferred embodiment of the present invention and should not be taken as limiting the utility model, and any modifications, equivalents, improvements and the like which are within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A heat radiation structure of a circular LED illuminating lamp is characterized by comprising a circular lamp body (10), a wiring cover (20) arranged at the top of the circular lamp body (10), an LED lamp panel (30) arranged at the bottom of the circular lamp body (10) and a transparent lampshade (40); the top of the circular lamp body (10) is provided with a plurality of scattered heat dissipation ribs (12) around the periphery of the wiring cover (20), each heat dissipation rib (12) consists of a wide part (13) close to the wiring cover (20) at the near end and a narrow part (14) at the far end, and the height and the width of the wide part (13) are both larger than those of the narrow part (14).

2. The heat dissipation structure of the circular LED lighting fixture as claimed in claim 1, wherein the circular lamp body (10) comprises a circular plate (11) and a plurality of heat dissipation ribs (12) distributed on the top thereof, and the circular plate (11) and the plurality of heat dissipation ribs (12) are integrally formed.

3. The circular LED illuminating lamp heat-dissipating structure as claimed in claim 2, wherein the plurality of heat-dissipating ribs (12) are annularly spaced, and an included angle between adjacent heat-dissipating ribs (12) is 5-35 °.

4. The circular LED lighting fixture heat dissipation structure of claim 1, wherein the top surface of the wide portion (13) to the top surface of the narrow portion (14) smoothly transitions in an outer arc ramp with a slope of 3-10 °.

5. The heat dissipation structure of a circular LED lighting fixture as claimed in claim 1, wherein the LED lamp panel (30) includes a printed circuit board (31) and a plurality of LED light beads (32), and the plurality of LED light beads (32) are concentrically distributed on the lower end surface of the printed circuit board (31).

6. The circular LED lighting lamp heat dissipation structure as claimed in claim 5, wherein the upper end surface of the printed circuit board (31) is coated with a heat conductive silicone grease layer and is connected to the circular lamp body (10) by a plurality of screws.

7. The circular LED illuminating lamp heat dissipation structure as recited in claim 5, wherein a plurality of LED light beads (32) are correspondingly arranged on the back of the positions of a plurality of heat dissipation ribs (12).

8. The heat dissipation structure of the circular LED lighting fixture as claimed in claim 1, wherein the transparent lampshade (40) is fixed to the bottom of the circular lamp body (10) by a snap-fit connection or a screw connection.

9. The circular LED illuminating lamp heat dissipation structure as claimed in claim 2, further comprising a low thermal group protruding strip (50), wherein the low thermal group protruding strip (50) is spirally disposed on the top of the circular flat plate (11) and is located at the bottom of the plurality of heat dissipation ribs (12).

10. The heat dissipating structure of claim 9, wherein the height and width of the low thermal set ribs (50) are gradually reduced from inside to outside.