CN217899809U

CN217899809U - Heat radiation structure of square high-power LED lamp

Info

Publication number: CN217899809U
Application number: CN202220878609.9U
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: 2022-04-16
Filing date: 2022-04-16
Publication date: 2022-11-25
Anticipated expiration: 2032-04-16

Abstract

The utility model provides a heat dissipation structure of a square high-power LED lamp, which comprises a heat dissipation lamp body and an LED lamp arranged at the bottom of the heat dissipation lamp body; the radiating lamp body is of a square structure, and the back face of the radiating lamp body is provided with a plurality of first radiating fins and second radiating fins which are different in height, so that wavy air isothermal surfaces are formed between the same air temperature points at the tops of the first radiating fins and the second radiating fins. The utility model discloses a fin that sets up the numerous height differences of quantity at the heat dissipation lamp body, air temperature between the fin receives the influence of fin height, the air temperature point at high fin top and the same air temperature point at low fin top have the difference in height, thereby cause the air isothermal surface waviness of fin part on the lamp body, the area of wavy air isothermal surface is than the flat air isothermal surface and will be big much, the convection heat dissipation efficiency of lamp body and the area of air isothermal surface become direct proportion, consequently, the radiating efficiency who has improved this heat radiation structure is showing.

Description

Heat radiation structure of square high-power LED lamp

Technical Field

The utility model relates to a lamps and lanterns technical field for the illumination especially relates to a heat radiation structure of square high-power LED lamps and lanterns.

Background

The heat dissipation structure of the existing high-power LED projection lamp is shown in figure 1, a parallel fin heat dissipation structure is adopted, the heat dissipation effect depends on the area of the upward isothermal surface of the high-power LED projection lamp, the upward isothermal surface of the high-power LED projection lamp is positioned on the same plane, the area of the isothermal surface is small, the high-power LED projection lamp cannot form a high-efficiency convection heat dissipation effect with air under the condition of no fan ventilation, and the heat dissipation efficiency cannot meet the heat dissipation requirement of the high-power LED projection lamp.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that: aiming at the defects of the prior art, the heat dissipation structure of the square high-power LED lamp has a larger isothermal surface area and can obviously improve the heat dissipation effect.

The utility model discloses a solve above-mentioned technical problem and adopt following technical scheme:

the utility model provides a heat dissipation structure of a square high-power LED lamp, which comprises a heat dissipation lamp body and an LED lamp arranged at the bottom of the heat dissipation lamp body; the radiating lamp body is of a square structure, and the back surface of the radiating lamp body is provided with a plurality of first radiating fins and second radiating fins which are different in height, so that wavy air isothermal surfaces are formed between the same air temperature points at the tops of the first radiating fins and the second radiating fins.

Furthermore, on the heat dissipation structure of the square high-power LED lamp, a plurality of first heat dissipation fins and a plurality of second heat dissipation fins are arranged at one-to-one intervals.

Furthermore, on the heat dissipation structure of the square high-power LED lamp, a plurality of first heat dissipation fins and second heat dissipation fins are arranged at intervals of one to two.

Further preferably, on the heat dissipation structure of the square high-power LED lamp, the height of the first heat dissipation fin is greater than or less than the height of the second heat dissipation fin.

Further preferably, on the heat dissipation structure of the square high-power LED lamp, the height of the first heat dissipation fin is 1.1 to 1.3 times that of the second heat dissipation fin.

Furthermore, on the heat dissipation structure of the square high-power LED lamp, the distance between the adjacent first heat dissipation fins and/or the adjacent second heat dissipation fins is 0.2 to 0.4 times of the average height of the two heat dissipation fins.

Furthermore, on the heat dissipation structure of the square high-power LED lamp, the first heat dissipation fin and the second heat dissipation fin are of flat plate structures or corrugated plate structures which are wavy along the horizontal direction.

Furthermore, on the heat dissipation structure of the square high-power LED lamp, the heat dissipation lamp body, the first heat dissipation fins and the second heat dissipation fins are of an integrally formed structure and made of aluminum or aluminum alloy materials.

Further, on the heat dissipation structure of the square high-power LED lamp, the LED lamp includes a printed circuit board and a plurality of high-power LED lamp beads, wherein:

the back surface of the printed circuit board is coated with heat-conducting silicone grease and is connected to the bottom of the heat-radiating lamp body by screws;

and the high-power LED lamp beads are arranged at the bottom of the printed circuit board and are arranged in an array.

Further preferably, on the heat dissipation structure of the square high-power LED lamp, the LED lamp further includes a transparent lampshade, wherein:

the transparent lampshade is arranged below the printed circuit board and the plurality of high-power LED lamp beads and is detachably arranged at the bottom of the radiating lamp body through the peripheral frame of the transparent lampshade.

The utility model adopts the above technical scheme, compare with prior art, have following technological effect:

the utility model discloses a setting up numerous fin at the heat dissipation lamp body, the fin divide into height difference's high fin and low fin, and high fin and low fin equidistance are separated by, the air temperature between the fin receives the influence of fin height, there is the difference in height at the air temperature point at high fin top and the same air temperature point at low fin top, thereby cause the air isothermal surface of fin part on the lamp body to become the wave, the area of wavy air isothermal surface is big than flat air isothermal surface, the convection heat dissipation efficiency of lamp body and the area of air isothermal surface become the direct proportion, consequently, the radiating efficiency of this heat radiation structure is showing to be improved; and the radiating fins and the radiating lamp body are of an integrally formed structure, and the back surface of the printed circuit board is coated with heat-conducting silicone grease, so that the heat conduction of the LED lamp beads is increased, and the radiating efficiency of the LED lamp is further ensured.

Drawings

Fig. 1 is a schematic structural diagram of a heat dissipation structure of a conventional general high-power LED lamp;

fig. 2 is a schematic view of a front view and a partial cross-sectional structure of a heat dissipation structure of a square high-power LED lamp of the present invention;

fig. 3 is a schematic perspective view of a heat dissipation structure of a square high-power LED lamp of the present invention;

wherein the reference symbols are:

10-a heat dissipation lamp body, 11-a first heat dissipation fin, 12-a second heat dissipation fin, and 13-an air isothermal surface; 20-LED lamp, 21-printed circuit board, 22-high power LED lamp bead, 23-transparent lampshade.

Detailed Description

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

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In some embodiments, as shown in fig. 2 and fig. 3, a heat dissipation structure of a square high-power LED lamp is provided to overcome the defects that an existing high-power LED projection lamp has a small isothermal surface area and cannot form an efficient convection heat dissipation effect with air without fan ventilation, and thus cannot meet the heat dissipation requirement of the high-power LED projection lamp, and the heat dissipation structure of the square high-power LED lamp mainly includes a heat dissipation lamp body 10 and an LED lamp 20 disposed at the bottom of the heat dissipation lamp body 10.

The heat radiation lamp body 10 is of a square structure, the back of the heat radiation lamp body is provided with a plurality of first heat radiation fins 11 and second heat radiation fins 12 which are different in height, and the first heat radiation fins 11 and the second heat radiation fins 12 are arranged at intervals so as to form a wavy air isothermal surface 13 between the same air temperature points at the tops of the first heat radiation fins 11 and the second heat radiation fins 12. The air temperature between the first heat dissipation fins 11 and the second heat dissipation fins 12 is affected by the fin heights, and the air temperature points at the tops of the high fins and the same air temperature points at the tops of the low fins have a height difference, so that the air isothermal surface of the fin part on the lamp body 10 is wavy, the area of the wavy air isothermal surface is much larger than that of the flat air isothermal surface, and the convection heat dissipation efficiency of the lamp body is in direct proportion to the area of the air isothermal surface, so that the heat dissipation efficiency of the heat dissipation structure is remarkably improved.

As one preferred embodiment, as shown in fig. 2 and 3, a plurality of the first heat dissipation fins 11 and the second heat dissipation fins 12 are arranged at one-to-one intervals, that is, one first heat dissipation fin 11 is spaced from one second heat dissipation fin 12. Of course, the first heat dissipating fins 11 and the second heat dissipating fins 12 may also be arranged in another manner, for example, a plurality of the first heat dissipating fins 11 and the second heat dissipating fins 12 are arranged at two-to-two intervals, that is, the first heat dissipating fins 11 are spaced by 2 second heat dissipating fins 12.

As one preferred embodiment, as shown in fig. 2 and 3, the height of the first heat dissipating fin 11 is greater than the height of the second heat dissipating fin 12. Of course, the height of the first heat dissipating fins 11 may be set to be smaller than the height of the second heat dissipating fins 12 as needed.

In addition, in order to improve the heat dissipation efficiency of the wavy air isothermal surface to the maximum extent, the height of the first heat dissipation fins 11 is 1.1-1.3 times that of the second heat dissipation fins 12; preferably, the height of the first heat dissipation fins 11 is 1.15 to 1.2 times the height of the second heat dissipation fins 12. The distance between the adjacent first radiating fins 11 and/or the adjacent second radiating fins 12 is 0.2 to 0.4 times of the average height of the two; preferably, the spacing between adjacent first heat dissipation fins 11 and/or second heat dissipation fins 12 is 0.25 to 0.35 times the average height of the two.

In one embodiment, as shown in fig. 2 and 3, the first heat dissipation fins 11 and the second heat dissipation fins 12 are flat plate structures. Certainly, according to the needs, in order to further improve the heat dissipation efficiency of the wavy air isothermal surface, the first heat dissipation fins 11 and the second heat dissipation fins 12 may also adopt another structural form, for example, the first heat dissipation fins 11 and the second heat dissipation fins 12 adopt corrugated plate structures which are wavy along the horizontal direction, and the first heat dissipation fins 11 and the second heat dissipation fins 12 are in a planar structure in the vertical direction.

In one embodiment, the heat dissipation lamp body 10, the first heat dissipation fins 11 and the second heat dissipation fins 12 are an integrally formed structure, so that the heat conduction efficiency between the heat dissipation lamp body 10 and the first heat dissipation fins 11 and the second heat dissipation fins 12 is increased, and the heat dissipation lamp body 10, the first heat dissipation fins 11 and the second heat dissipation fins 12 are integrally processed by using aluminum or an aluminum alloy material as required.

In one embodiment, the LED lamp 20 includes a printed circuit board 21 and a plurality of high power LED lamp beads 22. Wherein, the back of the printed circuit board 21 is coated with heat-conducting silicone grease and is connected to the bottom of the heat-dissipating lamp body 10 by screws; the high-power LED lamp beads 22 are arranged at the bottom of the printed circuit board 21 and are arranged in an array. By coating the heat-conducting silicone grease on the back surface of the printed circuit board 21, the heat conduction of the LED lamp beads 22 is increased, so that the heat dissipation efficiency of the LED lamp is ensured.

In addition, the LED lamp 20 further includes a transparent lampshade 23, and the transparent lampshade 23 is made of transparent glass or transparent plastic. The transparent lampshade 23 is disposed below the printed circuit board 21 and the plurality of high-power LED lamp beads 22, and is detachably mounted at the bottom of the heat dissipation lamp body 10 through the peripheral frame.

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," "connecting," and "connecting" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be directly connected, and "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed;

secondly, in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to common designs, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

finally, the above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made 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 square high-power LED lamp is characterized by comprising a heat radiation lamp body (10) and an LED lamp (20) arranged at the bottom of the heat radiation lamp body (10); the radiating lamp body (10) is of a square structure, and the back surface of the radiating lamp body is provided with a plurality of first radiating fins (11) and second radiating fins (12) which are different in height, so that wavy air isothermal surfaces (13) are formed between the same air temperature points at the tops of the first radiating fins (11) and the second radiating fins (12).

2. The heat dissipation structure of the square high-power LED lamp as claimed in claim 1, wherein a plurality of the first heat dissipation fins (11) and the second heat dissipation fins (12) are arranged at one-to-one intervals.

3. The heat dissipation structure of square high-power LED lamp as claimed in claim 1, wherein a plurality of the first heat dissipation fins (11) and the second heat dissipation fins (12) are arranged at a one-to-two interval.

4. The heat dissipation structure of the square high-power LED lamp as claimed in claim 2 or 3, wherein the height of the first heat dissipation fin (11) is greater than or less than the height of the second heat dissipation fin (12).

5. The heat dissipation structure of the square high-power LED lamp as claimed in claim 4, wherein the height of the first heat dissipation fin (11) is 1.1-1.3 times the height of the second heat dissipation fin (12).

6. The heat dissipation structure of the square high-power LED lamp as claimed in claim 1, wherein the spacing between the adjacent first heat dissipation fins (11) and/or the second heat dissipation fins (12) is 0.2-0.4 times of the average height of the two.

7. The heat dissipation structure of a square high-power LED lamp as claimed in claim 1, wherein the first heat dissipation fin (11) and the second heat dissipation fin (12) are of a flat plate structure or a corrugated plate structure which is waved along the horizontal direction.

8. The heat dissipation structure of the square high-power LED lamp as claimed in claim 1, wherein the heat dissipation lamp body (10), the first heat dissipation fin (11) and the second heat dissipation fin (12) are integrally formed, and are made of aluminum or aluminum alloy.

9. The heat dissipation structure of the square high-power LED lamp as claimed in claim 1, wherein the LED lamp (20) comprises a printed circuit board (21) and a plurality of high-power LED lamp beads (22), wherein:

the back surface of the printed circuit board (21) is coated with heat-conducting silicone grease and is connected to the bottom of the heat-radiating lamp body (10) by adopting a screw;

the high-power LED lamp beads (22) are arranged at the bottom of the printed circuit board (21) and are arranged in an array.

10. The heat dissipation structure of square high power LED lamp as claimed in claim 9, wherein the LED lamp (20) further comprises a transparent lampshade (23), wherein:

the transparent lampshade (23) is arranged below the printed circuit board (21) and the high-power LED lamp beads (22) and is detachably mounted at the bottom of the heat dissipation lamp body (10) through the peripheral frame.