CN211853944U

CN211853944U - LED module radiator

Info

Publication number: CN211853944U
Application number: CN202020778353.5U
Authority: CN
Inventors: 姹ゆ乏; 汤淦
Original assignee: Sichuan Zeyida Intelligent Internet Of Things Technology Co ltd
Current assignee: Sichuan Zeyida Intelligent Internet Of Things Technology Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2020-11-03
Anticipated expiration: 2030-05-12

Abstract

The utility model discloses a LED module radiator, comprising a base plate, be provided with high fin and short fin on the bottom plate, high fin is narrow riser under the upper width, short fin be under the narrow riser, high fin top is provided with first logical groove along the length direction of high fin, the cross section that first logical groove is the V type, the top of short fin is provided with the second along the length direction of short fin and leads to the groove, the cross section that the second LED to the groove is the V type, high fin with there is the clearance between short fin along same sharp direction staggered distribution and the two adjacent fins, and the high fin of this kind of shape is little with the thick height ratio of short fin structure, and unit volume fin is in large quantity, and effective heat radiating surface area is big, and the heat-sinking capability is good.

Description

LED module radiator

Technical Field

The utility model relates to a radiator field especially relates to a LED module radiator.

Background

In recent years, electronic technology has been rapidly developed, and LED electronic components are operated at high frequency and high speed, and integrated circuits are densely and miniaturized, so that the electronic components continuously generate heat during work, and therefore, a heat dissipation device is generally arranged on an attachment of the LED electronic components to take away the heat generated by the LED electronic components during work, so as to ensure the stable operation of the electronic components.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a LED module radiator has that the radiating rate is fast, advantage that heat radiating area is big.

The technical scheme of the utility model is that:

a heat radiator of an LED module comprises a bottom plate, wherein a high fin and a low fin are arranged on the bottom plate, the thickness of the top of the high fin is larger than that of the bottom of the high fin, the bottom of the high fin is connected with the bottom plate, the thickness of the top of the low fin is smaller than that of the bottom of the low fin, the bottom of the low fin is connected with the bottom plate, a first through groove is formed in the top of the high fin along the length direction of the high fin, the cross section of the first through groove is V-shaped, a second through groove is formed in the top of the low fin along the length direction of the low fin, the cross section of the second through groove is V-shaped, the high fin and the low fin are distributed in a staggered mode along the same straight line direction, a gap exists between every two adjacent fins, the gap between the high fin and the low fin is 5mm-7mm, the height of the high fin is, the height of the high fins and the number of the fins are large, and the heat dissipation capability is good.

In a further technical scheme, the V-shaped included angle between the high fin and the V-shaped groove at the top of the low fin is 4-6 degrees.

The angle of the V-shaped included angle is 4 degrees to 6 degrees, so that the processing and the manufacturing are convenient.

The utility model has the advantages that:

1. the high fins and the short fins are arranged on the bottom plate in a staggered mode, the high fins are vertical plates with wide tops and narrow bottoms, the short fins are vertical plates with narrow tops and wide bottoms, tapered cavities are formed between the high fins and the short fins, and meanwhile V-shaped grooves are formed in the tops of the high fins and the short fins, so that the air flow area and the air flow speed can be effectively increased, and the heat dissipation efficiency is improved;

2. the high fins and the low fins have small thickness, low height, small thickness-height ratio, large number of radiating fins in unit volume, large effective radiating surface area and good radiating performance;

3. the high fins and the low fins are rectangular vertical plates, and the vertical plates are convenient to process and manufacture and good in heat dissipation capacity;

4. the top through grooves of the high fins are deeper, and the top through grooves of the low fins are shallower, so that the thickness-height ratio of the fins can be further reduced, and the effective heat dissipation area is increased;

5. the distance between the high fins and the distance between the low fins are small, the structure is compact, the number of the fins in unit volume is large, and the heat dissipation capability is good;

6. the V-shaped included angle between the high fins and the V-shaped grooves at the tops of the low fins is small, the manufacturing and the processing are convenient, and the appearance is attractive.

Drawings

Fig. 1 is a schematic view of an overall structure of an LED module heat sink according to an embodiment of the present invention;

fig. 2 is a bottom view of an LED module heat sink according to an embodiment of the present invention;

FIG. 3 is a side view of an LED module heat sink that is described herein using a novel embodiment;

fig. 4 is a schematic structural diagram of a high fin according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of short fins according to an embodiment of the present invention;

description of reference numerals:

10. a base plate; 20. high fins; 21. a first through groove; 30. short fins; 31. a second through slot.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

Example (b):

as shown in fig. 1-3, an LED module heat sink includes a bottom plate 10, a tall fin 20 and a short fin 30 are disposed on the bottom plate 10, the top thickness of the tall fin 20 is greater than the bottom thickness thereof, the bottom of the tall fin 20 is connected to the bottom plate 10, the top thickness of the short fin 30 is less than the bottom thickness thereof, the bottom of the short fin 30 is connected to the bottom plate 10, a first through groove 21 is disposed at the top of the tall fin 20 along the length direction of the tall fin 30, the cross section of the first through groove 21 is V-shaped, a second through groove 31 is disposed at the top of the short fin 30 along the length direction of the short fin 30, the cross section of the second through groove 31 is V-shaped, the tall fin 20 and the short fin 30 are staggered and spaced in the same straight direction, and a gap exists between two adjacent fins, the gap between the tall fin 20 and the short fin 30 is 6mm, the height of the tall fins 20 is 32mm and the height of the short fins 30 is 22 mm.

The working principle of the technical scheme is as follows:

the LED lamp beads to be radiated are arranged on one side, far away from the fins, of the bottom plate 10, the high fins 20 and the low fins 30 are arranged on the bottom plate 10 in a staggered mode, meanwhile, the high fins 20 are of a structure with the upper portion being wide and the lower portion being narrow, the low fins 30 are of a structure with the upper portion being narrow and the lower portion being wide, a tapered cavity is formed between the high fins 20 and the low fins 30, the air convection speed can be increased through the tapered cavity, meanwhile, V-shaped through grooves are formed in the tops of the high fins 20 and the low fins 30, the air flowing area can be increased, heat generated by the LED lamp beads can be taken away through air flowing.

In another embodiment, as shown in fig. 4 and 5, the tall fins 30 have a thickness of 3mm, the difference between the top thickness and the bottom thickness of the tall fins 20 is 1.5mm, the short fins 30 have a thickness of 2mm, and the difference between the top thickness and the bottom thickness of the short fins 30 is 1.5 mm.

The thickness difference can effectively reduce the thickness-height ratio, the number of the radiating fins in unit volume is large, the effective radiating surface area is large, and the radiating performance is good.

In another embodiment, the tall fins 20 are rectangular vertical plates, and the short fins 30 are rectangular vertical plates, which is convenient for manufacturing.

In another embodiment, as shown in fig. 4 and 5, the width of the first through groove at the top of the tall fin 20 is 2mm, and the depth thereof is 9.5mm, the width of the second through groove at the top of the short fin 30 is 0.75mm, and the depth thereof is 0.75mm, the through groove at the top of the tall fin 20 is deeper, and the through groove at the top of the short fin 30 is shallower, so that the thickness-to-height ratio of the fins can be further reduced, and the effective heat dissipation area can be increased.

In another embodiment, as shown in fig. 4 and 5, the distance between the tall fins 20 is 15mm, and the distance between the short fins 30 is 15mm, so that the structure is compact, the number of fins per unit volume is large, and the heat dissipation capability is good.

In another embodiment, as shown in fig. 4 and 5, the V-shaped included angle between the tall fins 20 and the V-shaped groove on the top of the short fins 30 is 5 degrees, and the manufacturing is convenient.

In another embodiment, the cross section of the first through groove 21 at the top of the tall fin 20 may also be U-shaped, and the cross section of the second through groove 31 at the top of the short fin 30 may also be U-shaped.

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not 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.

Claims

1. An LED module radiator comprises a bottom plate, and is characterized in that a high fin and a low fin are arranged on the bottom plate, the top thickness of the high fin is larger than the bottom thickness of the high fin, the bottom of the high fin is connected with the bottom plate, the top thickness of the low fin is smaller than the bottom thickness of the low fin, the bottom of the low fin is connected with the bottom plate, a first through groove is arranged at the top of the high fin along the length direction of the high fin, the cross section of the first through groove is V-shaped, a second through groove is arranged at the top of the low fin along the length direction of the low fin, the cross section of the second through groove is V-shaped, the high fin and the low fin are distributed in a staggered manner along the same straight line direction, a gap exists between two adjacent fins, the gap between the high fin and the low fin is 5mm-7mm, the height of the high fin is not lower than 22mm, and the height of, the difference between the height of the high fins and the height of the short fins is not less than 9 mm.

2. The LED module heat sink according to claim 1, wherein the tall fins have a thickness of 2-4mm, the difference between the top thickness and the bottom thickness of the tall fins is 1-2mm, the short fins have a thickness of 1-2.5 mm, and the difference between the top thickness and the bottom thickness of the short fins is 0.5-2 mm.

3. The LED module heat sink of claim 1, wherein said tall fins are rectangular risers and said short fins are rectangular risers.

4. The LED module heat sink as claimed in claim 1, wherein the first through slots on the tops of the tall fins have a width of 1mm to 2.5mm and a depth of 9mm to 10mm, and the second through slots on the tops of the short fins have a width of 0.5mm to 1mm and a depth of 0.5mm to 1 mm.

5. The LED module heat sink according to claim 1, wherein the tall fins are spaced apart by 14mm to 16mm, and the short fins are spaced apart by 14mm to 16 mm.

6. The LED module heat sink of claim 1, wherein the V-shaped angle between the tall fins and the V-shaped groove at the top of the short fins is 4-6 degrees.