CN201322284Y - Heat dissipation device of LED spotlight - Google Patents

Abstract

The utility model relates to a heat abstractor technical field especially relates to a heat abstractor of LED shot-light, it is including being cupped heat dissipation body, the lateral surface shaping of heat dissipation body has first heat radiation fin group and second heat radiation fin group, first heat radiation fin group comprises a plurality of first heat radiation fins, first heat radiation fins are circular radial, second heat radiation fin group comprises a plurality of second heat radiation fins, second heat radiation fins are the arc form, because the contact area between the second heat radiation fins that are radial first heat radiation fins and are the arc form and air is great, namely heat radiating area is great, can distribute away the heat of gathering rapidly, the radiating efficiency is high; therefore, will the utility model discloses install in the LED shot-light, can in time rapidly lead away a large amount of heats that the LED during operation produced.

Description

A cooling device for LED spotlights

Technical field:

The utility model relates to the technical field of heat dissipation devices, in particular to a heat dissipation device for LED spotlights.

Background technique:

Due to the long service life of LED (Light Emitting Diode, light-emitting diode), low energy consumption, and remarkable energy saving, LED has been widely used in daily life as a light source, such as LED spotlights, which have low power consumption, long irradiation distance, and can be used long life. However, with the increase in the number of LEDs in LED spotlights and the development of high-power, high-brightness LEDs, the heat generated by LED spotlights is gradually rising. Therefore, how to quickly dissipate the heat generated by LED spotlights has become a major problem that must be solved in LED spotlight technology.

The heat dissipation structure of the existing LED spotlights is mainly composed of an aluminum substrate on which the LED is fixed and an aluminum alloy casing. The aluminum substrate and the casing use their own thermal conductivity to conduct away the heat generated by the LED when it is working. Due to the small size and small heat dissipation area, the heat dissipation efficiency is not high, and the shell of the LED spotlight, due to the limitation of the appearance shape, has a poor heat dissipation effect, and cannot promptly and quickly conduct away a large amount of heat generated by the LED when it is working. .

Utility model content:

The purpose of the utility model is to provide a heat dissipation device for LED spotlights with large heat dissipation area and high heat dissipation efficiency in view of the deficiencies in the prior art.

In order to achieve the above object, the technical solution adopted by the utility model is:

It includes a cup-shaped heat dissipation body, the outer surface of the heat dissipation body is formed with a first heat dissipation fin group and a second heat dissipation fin group, the first heat dissipation fin group is composed of a plurality of first heat dissipation fins, the first The heat dissipation fins are circular and radial, and the second heat dissipation fin group is composed of a plurality of second heat dissipation fins, and the second heat dissipation fins are arc-shaped.

The second heat dissipation fins are composed of a support part and a heat dissipation part connected outside the support part, and both the support part and the heat dissipation part are arc-shaped.

An annular fixed ring is connected to the outer side of the heat dissipation portion.

The second heat dissipation fins have no less than two heat dissipation parts.

The bottom of the heat dissipation body is provided with an inner recess for placing the power supply box, and the top of the heat dissipation body is provided with an accommodating area for placing the aluminum substrate.

The heat dissipation body is provided with a through hole which can communicate the inner concave part with the accommodating area.

The bottom end of the accommodating area is provided with a first screw hole for fixing the aluminum substrate.

The inner wall of the inner recess is provided with a second screw hole.

The beneficial effects of the utility model are:

A heat dissipation device for LED spotlights provided by the utility model includes a cup-shaped heat dissipation body, the outer surface of the heat dissipation body is formed with a first heat dissipation fin group and a second heat dissipation fin group, the first heat dissipation fin group It is composed of a plurality of first heat dissipation fins, the first heat dissipation fins are circular and radial, and the second heat dissipation fin group is composed of a plurality of second heat dissipation fins, and the second heat dissipation fins are arc-shaped. The contact area between the first cooling fin and the arc-shaped second cooling fin and the air is relatively large, that is, the cooling area is large, and the accumulated heat can be dissipated quickly, and the cooling efficiency is high. Therefore, installing the utility model in an LED spotlight can promptly and quickly conduct away a large amount of heat generated when the LED is working.

Description of drawings:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of another direction of the utility model;

Fig. 3 is the bottom view of the utility model;

Fig. 4 is a cross-sectional view along line A-A of Fig. 3 .

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings. As shown in FIGS. Two heat dissipation fin groups, the first heat dissipation fin group is composed of a plurality of first heat dissipation fins 2, the first heat dissipation fins 2 are in a circular radial shape, and the second heat dissipation fin group is composed of a plurality of second heat dissipation fins , the second heat dissipation fins are in the shape of an arc; because the contact area between the radial first heat dissipation fins 2 and the arc-shaped second heat dissipation fins and the air is relatively large, that is, the heat dissipation area is large, and the accumulated heat can be quickly dissipated. Radiate out, high heat dissipation efficiency.

The second radiating fin of this embodiment is made up of supporting part 31, radiating part 32, and the inner side of supporting part 31 is connected with the outer surface of heat dissipating body 1, and the outer side of supporting part 31 is connected with the inner side of radiating part 32, and radiating part 32 An annular fixed ring 4 is connected to the outer side of the second cooling fin, wherein there are no less than two heat dissipation parts 32 of the second heat dissipation fin. In this embodiment, there are two heat dissipation parts 32, and the two heat dissipation parts 32 and A support portion 31 constitutes a “Y”-shaped second heat dissipation fin, and the support portion 31 and the heat dissipation portion 32 are arc-shaped to increase the heat dissipation area of the second heat dissipation fin.

In this embodiment, the bottom of the heat dissipation body 1 is provided with an inner recess 5 for placing a power box, and the top of the heat dissipation body 1 is provided with an accommodating area 6 for placing an aluminum substrate. 5. A through hole 7 communicating with the accommodating area 6. The through hole 7 can place a power line, so that the aluminum substrate of the LED spotlight is electrically connected with the power supply box.

The bottom end of the accommodating area 6 of this embodiment is provided with a first screw hole 61 for fixing the aluminum substrate, and the inner wall of the inner recess 5 is provided with a second screw hole 51, so as to fix the lamp head of the LED spotlight on the bottom of the heat sink.

When the utility model is in use, the aluminum substrate of the LED spotlight is fixed on the bottom of the accommodation area 6 by screws, so that the heat generated by the LED can be transmitted to the heat dissipation body 1 through the aluminum substrate, and then formed on the The first heat dissipation fin group and the second heat dissipation fin group on the outer surface of the heat dissipation body 1 dissipate heat in time and rapidly.

Of course, the above are only preferred embodiments of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the utility model patent application are included in the utility model patent application within range.

Claims (8)

1, a kind of heat abstractor of LED shot-light, it is characterized in that: it comprises cup-shaped heat radiator body (1), the lateral surface of described heat radiator body (1) forms the first radiating fin group and the second radiating fin group, the first radiating fin group is made of a plurality of first radiating fins (2), rounded radial of first radiating fin (2), the second radiating fin group is made of a plurality of second radiating fins, the curved shape of second radiating fin.

2, the heat abstractor of a kind of LED shot-light according to claim 1, it is characterized in that: described second radiating fin is made up of support portion (31), the radiating part (32) that is connected support portion (31) outside, and support portion (31) and radiating part (32) are arc shape.

3, the heat abstractor of a kind of LED shot-light according to claim 2 is characterized in that: the outside of described radiating part (32) is connected with the retainer plate (4) of annular.

4, the heat abstractor of a kind of LED shot-light according to claim 2 is characterized in that: the radiating part of described second radiating fin (32) is no less than two.

5, the heat abstractor of a kind of LED shot-light according to claim 1, it is characterized in that: the bottom of described heat radiator body (1) offers the inner fovea part (5) that is used to place power pack, and the top of described heat radiator body (1) offers the disposal area (6) that is used to place aluminium base.

6, the heat abstractor of a kind of LED shot-light according to claim 5 is characterized in that: described heat radiator body (1) is provided with the through hole (7) that inner fovea part (5) can be communicated with disposal area (6).

7, the heat abstractor of a kind of LED shot-light according to claim 5 is characterized in that: the bottom of described disposal area (6) offers first screw (61) that is used for fixing aluminium base.

8, the heat abstractor of a kind of LED shot-light according to claim 5 is characterized in that: the inwall of described inner fovea part (5) is provided with second screw (51).

Images