CN210891578U - LED lamp bead radiator - Google Patents

Abstract

The utility model provides an LED lamp bead radiator, which comprises a main radiating cylinder, which is a cylindrical structure; the main radiating cylinder is provided with a mounting hole for connecting with the LED lamp beads; Heat dissipation fins, each group of heat dissipation fins includes a pair of fins, namely a first fin and a second fin; the first fin and the second fin form a heat dissipation groove with a V-shaped cross section; the heat dissipation groove The opening of the radiator faces outward, the root is fixed on the outer wall of the main radiating cylinder, and the radiating grooves are arranged along the longitudinal direction of the main radiating cylinder; a plurality of radiating grooves are distributed on the outer wall of the main radiating cylinder in a spoke shape; a cross section is formed between adjacent cooling grooves It is an equilateral trapezoidal cooling channel. The cross section of the utility model is a V-shaped heat dissipation groove, forming a large opening heat dissipation space, and at the same time, a chimney effect is formed through a heat dissipation channel.

Description

LED lamp bead heat sink

technical field

The utility model relates to the field of LED lamps, in particular to an LED lamp bead radiator.

Background technique

LED lamps have high luminous efficiency and energy saving; LED lamps have high requirements for heat dissipation, and their heat dissipation accounts for about 80% of the total power consumption of LEDs. Therefore, LED lamp bead junction temperature control and heat dissipation are of great significance. In order to take into account both cost and heat dissipation effect, the existing heat sink is usually made of aluminum, and a heat sink for heat transfer is provided on the base of the LED lamp bead. The traditional heat sink is mainly provided with a plurality of fins, and the fins are also provided with small fins, in order to increase the heat dissipation area, but the complex structure of the heat dissipation fins also increases the manufacturing cost.

Utility model content

In order to overcome the above shortcomings, the utility model aims to provide a LED lamp bead radiator, which can not only ensure the heat dissipation effect, but also simplify the structure and reduce the manufacturing cost.

The specific technical solutions are:

The LED lamp bead radiator includes a main heat sink, and the main heat sink has a cylindrical structure; the main heat sink is provided with a mounting hole for connecting with the LED lamp bead;

The outer wall of the main heat sink is fixedly installed with multiple groups of heat dissipation fins, and each group of heat dissipation fins includes a pair of fins, namely a first fin and a second fin; the first and second fins A heat sink with a V-shaped cross section is formed; the opening of the heat sink faces outward, the root is fixed on the outer wall of the main heat sink, and the heat sink is arranged along the longitudinal direction of the main heat sink; a plurality of heat sinks are distributed in the shape of spokes on the outer wall of the main heat sink superior;

A heat dissipation channel with an equilateral trapezoid in cross section is formed between adjacent heat dissipation grooves.

Further, the end of the heat dissipation channel close to the main heat dissipation cylinder is the bottom, the end away from the main heat dissipation cylinder is the top, and the bottom of the heat dissipation channel is wider than the top.

Preferably, the root of each of the cooling grooves is further provided with a cooling fan, the two sides of the cooling fan are respectively fixed on the first fin and the second fin, and the axis of the cooling fan and the main cooling cylinder is vertical.

Preferably, each of the heat dissipation grooves is provided with a plurality of heat dissipation fan-shaped fins that are parallel to each other, and the plurality of heat dissipation fan-shaped fins are distributed in the heat dissipation groove in sequence and equidistant in the longitudinal direction.

Compared with the prior art, the beneficial effects of the present utility model are:

The LED lamp bead radiator provided by the utility model forms a large open heat dissipation space through a heat dissipation groove with a V-shaped cross section, and also forms a chimney effect through a heat dissipation channel with an equilateral trapezoid cross section. The hot gas can be quickly discharged from the top of the heat dissipation channel, the two heat dissipation methods are combined with each other, the fin structure is simple, the processing is easy, and the manufacturing cost is reduced.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic top view of the structure of the present invention.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Please refer to FIG. 1, the LED lamp bead radiator includes a main heat dissipation cylinder 1, and the main heat dissipation cylinder 1 is a cylindrical structure; the main heat dissipation cylinder 1 is provided with mounting holes for connecting with the LED lamp beads;

The outer wall of the main heat sink 1 is fixedly installed with multiple groups of heat dissipation fins, each group of heat dissipation fins includes a pair of fins, namely the first fin 2 and the second fin 3; the first fin 2 and The second fins 3 form a heat sink 5 with a V-shaped cross section; the opening of the heat sink 5 faces outward, the root is fixed on the outer wall of the main heat sink 1, and the heat sink 5 is arranged along the longitudinal direction of the main heat sink 1; a plurality of heat sinks The grooves 5 are distributed on the outer wall of the main heat sink 1 in a spoke-like manner;

The V-shaped heat sink 5 large openings can expand the heat dissipation space.

The main heat sink 1 , the first fins 2 and the second fins 3 are all made of aluminum material, which can be integrally formed, or can be formed separately and then welded.

A heat dissipation channel 6 with an equilateral trapezoid cross-section is formed between the adjacent heat dissipation grooves 5 .

The end of the heat dissipation channel 6 close to the main heat dissipation cylinder 1 is the bottom, and the end away from the main heat dissipation cylinder 1 is the top. The bottom of the heat dissipation channel 6 is wider than the top. The heat dissipation channel 6 is wide at the bottom and narrow at the top, forming a structure similar to a chimney, which can form a chimney effect and quickly discharge the hot gas at the bottom from the top.

The heat dissipation channel 6 and the V-shaped heat dissipation groove 5 are spaced apart from each other, making full use of the characteristics of space and air flow, so that the two heat dissipation methods are used at the same time, and the heat dissipation effect is improved.

The root of each of the cooling slots 5 is also provided with a cooling fan 4. The two sides of the cooling fan 4 are respectively fixed on the first fin 2 and the second fin 3. The cooling fan 4 is connected to the main cooling cylinder. The axis of 1 is vertical.

Each of the heat dissipation slots 5 is provided with a plurality of heat dissipation fan-shaped fins 4 that are parallel to each other, and the plurality of heat dissipation fan-shaped fins 4 are distributed in the heat dissipation slot 5 in sequence and equidistant in the longitudinal direction.

The heat dissipation fan-shaped fins 4 can increase the contact surface with the main heat-dissipating cylinder 1, and quickly dissipate the heat of the main heat-dissipating cylinder 1, and the heat-dissipating fan-shaped fins 4 also increase the heat dissipation area.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

Claims (4)

1. The LED lamp bead radiator comprises a main radiating cylinder (1), wherein the main radiating cylinder (1) is of a cylindrical structure; the main heat dissipation cylinder (1) is provided with a mounting hole for connecting with the LED lamp bead;

   the heat dissipation device is characterized in that a plurality of groups of heat dissipation fins are fixedly arranged on the outer wall of the main heat dissipation cylinder (1), and each group of heat dissipation fins comprises a pair of fins, namely a first fin (2) and a second fin (3); the first fin (2) and the second fin (3) form a heat dissipation groove (5) with a V-shaped cross section; the opening of the heat dissipation groove (5) faces outwards, the root part of the heat dissipation groove is fixed on the outer wall of the main heat dissipation cylinder (1), and the heat dissipation groove (5) is arranged along the longitudinal direction of the main heat dissipation cylinder (1); the plurality of radiating grooves (5) are distributed on the outer wall of the main radiating cylinder (1) in a spoke shape;

   and heat dissipation channels (6) with equilateral trapezoid cross sections are formed between adjacent heat dissipation grooves (5).
2. 2. The LED lamp bead heat sink according to claim 1, wherein the end of the heat dissipation channel (6) close to the main heat dissipation cylinder (1) is a bottom, the end far away from the main heat dissipation cylinder (1) is a top, and the bottom of the heat dissipation channel (6) is wider than the top.
3. 3. The LED lamp bead heat radiator of claim 1, wherein the root of each heat radiating groove (5) is further provided with a heat radiating fan-shaped sheet (4), two sides of the heat radiating fan-shaped sheet (4) are respectively fixed on the first fin (2) and the second fin (3), and the heat radiating fan-shaped sheet (4) is perpendicular to the axial lead of the main heat radiating cylinder (1).
4. 4. The LED lamp bead heat sink according to any one of claims 1 to 3, wherein a plurality of parallel heat dissipation fan-shaped fins (4) are disposed in each heat dissipation groove (5), and the plurality of heat dissipation fan-shaped fins (4) are longitudinally and sequentially distributed in the heat dissipation groove (5) at equal intervals.

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