CN201232979Y - LED (light-emitting diode) spotlight - Google Patents

Abstract

The utility model relates to a lighting lamp technical field especially relates to a LED shot-light, and it includes aluminium base board, the LED of installation fixing on aluminium base board, the bottom fixedly connected with of aluminium base board is cupped heat abstractor, heat abstractor comprises a plurality of heat radiation fins, a plurality of heat radiation fins are circular shape radiation shape, because at the special heat abstractor of the bottom fixedly connected with of aluminium base board, and a plurality of heat radiation fins that are circular shape radiation shape can increase heat abstractor's heat radiating area, when LED work illumination, the produced heat of LED passes to heat abstractor behind aluminium base board, distributes away in time rapidly by a plurality of heat radiation fins of heat abstractor again to improve the radiating effect of LED shot-light, avoid the life of LED to shorten, slow down LED's light decay.

Description

A kind of LED spotlight

Technical field:

The utility model relates to the technical field of lighting fixtures, in particular to an LED spotlight.

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.

Existing LED spotlights are mainly composed of an aluminum alloy casing, an aluminum substrate, and LEDs mounted and fixed on the aluminum substrate. The device mainly uses the thermal conductivity of the aluminum substrate and the shell itself to conduct away the heat generated by the LED when it is working. However, due to the small size of the aluminum substrate, the heat dissipation efficiency is not high, and the shell of the LED spotlight is affected by the Due to the limitation of appearance and shape, its heat dissipation effect is poor, and it cannot promptly and quickly conduct away the large amount of heat generated by the LED when it is working, resulting in shortened service life of the LED. LED light decay.

Utility model content:

The purpose of the utility model is to provide an LED spotlight which improves the heat dissipation effect by providing a special heat dissipation device 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 an aluminum substrate and an LED installed and fixed on the aluminum substrate. The bottom end of the aluminum substrate is fixedly connected with a cup-shaped heat dissipation device. The heat dissipation device is composed of a plurality of heat dissipation fins, and the plurality of heat dissipation fins It has a circular radial shape.

Wherein, the top of the aluminum substrate is provided with a lens for concentrating light, the bottom of the lens is formed with the same number of focusing cups as the number of LEDs on the aluminum substrate, and the bottom of the focusing cup is provided with an inner recess for placing LEDs .

Wherein, the top end of the inner concave part is a lower spherical surface convex downward.

Wherein, the heat dissipation fins are arc-shaped, and the arcs protrude in the same direction.

Wherein, an accommodating area for placing the aluminum substrate and the lens is provided in the heat dissipation device.

Wherein, the bottom end of the heat dissipation device is fixedly connected with a lamp cap.

Wherein, a driving circuit board for driving and lighting the LED is installed and fixed in the lamp holder, and the driving circuit board is electrically connected with the LED on the aluminum substrate.

The beneficial effects of the utility model are:

An LED spotlight provided by the utility model includes an aluminum base plate and an LED installed and fixed on the aluminum base plate. The plurality of heat dissipation fins are in a circular radial shape. Since a special heat dissipation device is fixedly connected to the bottom of the aluminum substrate, and the plurality of heat dissipation fins in a circular radial shape can increase the heat dissipation of the heat dissipation device. Heat dissipation area, when the LED is working for lighting, the heat generated by the LED passes through the aluminum substrate, then is transmitted to the heat dissipation device, and then dissipated by the plurality of heat dissipation fins of the heat dissipation device in a timely and rapid manner, thereby improving the heat dissipation effect of the LED spotlight and avoiding The service life of the LED is shortened and the light decay of the LED is slowed down.

Further, the top of the aluminum substrate is provided with a lens for concentrating light, the bottom of the lens is formed with the same number of focusing cups as the number of LEDs on the aluminum substrate, and the bottom of the focusing cup is provided with an inner recess for placing LEDs , because the bottom of the lens is formed with a concentrating cup, so that the light emitted by the LED can be focused by the concentrating cup with a better concentrating effect, and then emitted, that is, the light emitted by the LED is more concentrated, so that Increased the irradiation distance of LED spotlights.

Description of drawings:

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

Fig. 2 is the exploded schematic view of the utility model;

Fig. 3 is a schematic structural view of the utility model heat sink;

Fig. 4 is the bottom view of the utility model lens;

Fig. 5 is a cross-sectional view along line A-A of Fig. 4 .

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings, see Figures 1 to 5, the utility model includes an aluminum substrate 1, an LED 2 installed and fixed on the aluminum substrate 1, and the bottom end of the aluminum substrate 1 is fixedly connected with a cup-shaped The heat dissipation device 3 is composed of a plurality of heat dissipation fins 31, and the plurality of heat dissipation fins 31 are in a circular radial shape. Since the bottom end of the aluminum substrate 1 is fixedly connected with a special heat dissipation device 3 , and a plurality of heat dissipation fins 31 in a circular radial shape can increase the heat dissipation area of the heat dissipation device 3. When the LED2 is working for lighting, the heat generated by the LED2 passes through the aluminum substrate 1 and then is transmitted to the heat dissipation device 3, and then by The plurality of heat dissipation fins 31 of the heat dissipation device 3 are dissipated in time and rapidly, thereby improving the heat dissipation effect of the LED spotlight, avoiding shortening the service life of the LED2, and slowing down the light decay of the LED2.

The top of the aluminum substrate 1 in this embodiment is provided with a lens 4 for concentrating light. The bottom end of the lens 4 is formed with the same number of concentrating cups 41 as the number of LEDs on the aluminum substrate 1. The concentrating cups 41 are in the shape of a conical cone. The radius is larger, and the radius of the bottom is smaller. The bottom of the focusing cup body 41 is provided with an inner concave portion 42 for placing LED2, and each inner concave portion 42 of the focusing cup body 41 is correspondingly accommodated. One LED2, and the The top of the inner concave portion 42 is a downwardly convex lower spherical surface 43, which forms a condenser lens, so that the light emitted by each LED2 can be focused by the condenser cup body 41 with better light-gathering effect, and then emitted. This makes the light emitted by LED2 more concentrated, thereby increasing the irradiation distance of the LED spotlight.

The heat dissipation fins 31 in this embodiment are in the shape of an arc, and the arcs protrude in the same direction. This structure can increase the heat dissipation area of the heat dissipation fins 31 and improve the heat dissipation efficiency of the heat dissipation fins 31 . It should be noted that the heat dissipation fins 31 may also be in other shapes, not limited to arc shapes, as long as they can increase the heat dissipation area.

The heat dissipation device 3 of this embodiment is provided with an accommodating area 32 for placing the aluminum substrate 1 and the lens 4. More specifically, the aluminum substrate 1 is fixed in the accommodating area 32 by screws, and the lens 4 is a card. Connected to the opening of the accommodation area 32.

The bottom end of the cooling device 3 in this embodiment is fixedly connected with a lamp cap 5, so that the utility model can be conveniently installed in the socket of a common spotlight, and a driving circuit board 6 for driving and lighting the LED 2 is installed and fixed in the lamp cap 5 , the driving circuit board 6 is electrically connected to the LED2 on the aluminum substrate 1 to provide power for the LED2.

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 (7)

1. An LED spotlight, which includes an aluminum substrate (1), and an LED (2) installed and fixed on the aluminum substrate (1), characterized in that: the bottom end of the aluminum substrate (1) is fixedly connected with a cup Shaped heat sink (3), the heat sink (3) is composed of a plurality of heat dissipation fins (31), and the plurality of heat dissipation fins (31) are in a circular radial shape. 2. An LED spotlight according to claim 1, characterized in that: the top of the aluminum substrate (1) is provided with a lens (4) for concentrating light, and the bottom of the lens (4) is formed with an aluminum The LEDs (2) on the substrate (1) have the same number of focusing cups (41), and the bottom of the focusing cups (41) is provided with an inner recess (42) for placing the LEDs (2). 3. An LED spotlight according to claim 2, characterized in that: the top of the concave part (42) is a lower spherical surface (43) convex downward. 4. The LED spotlight according to claim 1, characterized in that: the heat dissipation fins (31) are arc-shaped, and the arcs protrude in the same direction. 5. The LED spotlight according to claim 2, characterized in that: the heat dissipation device (3) is provided with an accommodating area (32) for placing the aluminum substrate (1) and the lens (4). 6. The LED spotlight according to claim 1, characterized in that: the bottom end of the heat dissipation device (3) is fixedly connected with a lamp cap (5). 7. An LED spotlight according to claim 6, characterized in that: a drive circuit board (6) for driving and lighting the LED (2) is installed and fixed in the lamp holder (5), and the drive circuit board (6) ) is electrically connected to the LED (2) on the aluminum substrate (1).

Images