CN201237096Y - Improved LED lamp - Google Patents

Abstract

The utility model relates to the technical field of lighting lamps, and in particular to an improved LED lamp, which comprises an upper cover, a bottom cover made of aluminum alloy, an aluminum substrate, and an LED installed and fixed on the aluminum substrate. The upper cover and the bottom cover are buckled with each other, the aluminum substrate is fixed on the bottom cover, and a heat dissipation device is arranged at the bottom end of the bottom cover. The heat dissipation device comprises a heat dissipation body in a hollow cylindrical shape, and a plurality of heat dissipation fin groups are formed on the outer side surface of the heat dissipation body. The plurality of heat dissipation fin groups are in a circular radial shape. Since a special heat dissipation device is arranged at the bottom end of the bottom cover, when the LED is working and lighting, the heat generated by the LED passes through the aluminum substrate and the bottom cover made of aluminum alloy in sequence, and is transmitted to the heat dissipation body of the heat dissipation device, and then is promptly and quickly dissipated by the heat dissipation fin group formed on the outer side surface of the heat dissipation body, thereby improving the heat dissipation effect of the LED lamp and avoiding shortening the service life of the LED.

Description

An improved LED lamp

Technical field:

The utility model relates to the technical field of lighting lamps, in particular to an improved LED lamp.

Background technique:

Due to the long service life of LEDs (Light Emitting Diodes, light emitting diodes), low energy consumption, and remarkable energy saving, LEDs have been widely used as light sources in daily life, such as cup lights, spotlights, car lights and other lighting fixtures. However, with the increase in the number of LEDs in LED lamps and the development of high-power and high-brightness LEDs, the heat generated by LED lamps is gradually increasing. Therefore, how to quickly dissipate the heat generated by LED lamps has become a major problem that must be solved in current LED lamp technology.

Existing LED lamps are mainly composed of an aluminum alloy casing, an aluminum substrate, and LEDs mounted and fixed on the aluminum substrate. The aluminum substrate is installed in the casing and fixedly connected to the casing. This kind of LED lamp does not have a special heat dissipation device. It 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 lamp is affected by the appearance shape. Due to the limitation, 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.

Utility model content:

The purpose of the utility model is to provide an improved LED lamp which can improve the heat dissipation effect by setting a special heat dissipation device in view of the shortcomings of the prior art.

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

It includes a top cover, a bottom cover made of aluminum alloy, an aluminum substrate, and an LED mounted and fixed on the aluminum substrate. The top cover and the bottom cover are interlocked, and the aluminum substrate is fixed on the bottom cover. A heat dissipation device, the heat dissipation device includes a hollow cylindrical heat dissipation body, a plurality of heat dissipation fin groups are formed on the outer surface of the heat dissipation body, and the plurality of heat dissipation fin groups are in a circular radial shape.

Wherein, the heat dissipation fin group is formed by connecting two arc-shaped heat dissipation fins.

Wherein, a protrusion is formed on the inner surface of the heat dissipation body, and a screw hole is opened on the protrusion.

Wherein, a lens for concentrating light is provided between the upper cover and the aluminum substrate, and the bottom end of the lens is formed with a frustum-shaped concentrating cup with the same number of LEDs on the aluminum substrate, and the bottom of the concentrating cup is provided with a useful For the inner concave part where the LED is placed, the top of the inner concave part is a lower spherical surface convex downward.

Wherein, a positioning groove is provided on the aluminum substrate, and a positioning post matching the positioning slot is formed on the bottom of the lens, and the positioning post is snapped into the positioning slot.

Wherein, a flange for clamping and fixing the lens is formed on the lens.

Wherein, a power supply box is installed and fixed in the heat dissipation body of the heat dissipation device, and the power supply box includes a box body, a box cover interlocked with the box body, a control circuit board installed and fixed on the box cover, the control circuit board and the aluminum The LEDs on the substrate are electrically connected.

The beneficial effects of the utility model are:

An improved LED lamp provided by the utility model includes an upper cover, a bottom cover made of aluminum alloy, an aluminum substrate, and an LED installed and fixed on the aluminum substrate. The upper cover and the bottom cover are interlocked, and the aluminum substrate is fixed on the bottom cover. , the bottom end of the bottom cover is provided with a cooling device, the cooling device includes a hollow cylindrical cooling body, the outer surface of the cooling body is formed with a plurality of cooling fin groups, and the plurality of cooling fin groups are round Since the bottom of the bottom cover is equipped with a special cooling device, when the LED is working for lighting, the heat generated by the LED passes through the aluminum substrate and the bottom cover made of aluminum alloy in turn, and then is transmitted to the cooling body of the cooling device. , and then dissipated in a timely and rapid manner by the heat dissipation fin group formed on the outer side of the heat dissipation body, thereby improving the heat dissipation effect of the LED lamp and avoiding shortening the service life of the LED.

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:

Below in conjunction with accompanying drawing, the utility model is further described, see shown in Fig. 1～5, the utility model comprises loam cake 1, the bottom cover 2 that aluminum alloy makes, aluminum substrate 3, the LED4 that is installed and fixed on the aluminum substrate 3, The upper cover 1 and the bottom cover 2 are interlocked, and the aluminum substrate 3 is fixed on the bottom cover 2. The bottom end of the bottom cover 2 is provided with a heat dissipation device 5, and the heat dissipation device 5 includes a hollow cylindrical heat dissipation body 51. The outer surface of the heat dissipation body 51 is formed with a plurality of heat dissipation fin groups 52, and the plurality of heat dissipation fin groups 52 are in a circular radial shape. Since a special heat dissipation device 5 is arranged at the bottom of the bottom cover 2, when the LED4 During working lighting, the heat generated by the LED 4 passes through the aluminum substrate 3 and the bottom cover 2 made of aluminum alloy successively, and then passes to the heat dissipation body 51 of the heat dissipation device 5, and then is formed in time by the heat dissipation fin group 52 formed on the outer surface of the heat dissipation body 51. Dissipate quickly, thereby improving the heat dissipation effect of LED lamps and avoiding shortening the service life of LED4.

The cooling fin group 52 of this embodiment is formed by connecting two arc-shaped cooling fins 53. This structure can further increase the cooling area of the cooling device 5. Of course, the cooling fin group 52 can also be formed by A plurality of cooling fins 53 are connected, not limited to two curved cooling fins 53 being connected.

In this embodiment, a protrusion 54 is formed on the inner surface of the heat dissipation body 51 , and a screw hole 55 is opened on the protrusion 54 , so that the heat dissipation device 5 can be fixedly connected to the bottom end of the bottom cover 2 by screws.

A lens 6 for concentrating light is provided between the upper cover 1 and the aluminum substrate 3 in this embodiment, and the bottom end of the lens 6 is formed with a frustum-shaped concentrating cup body 61 with the same number of LEDs 4 on the aluminum substrate 3. The bottom of the body 61 is provided with an inner concave portion 62 for placing the LED4, and the top of the inner concave portion 62 is a lower spherical surface 63 convex downward, and the inner concave portion 62 of each light-concentrating cup body 61 is correspondingly accommodated with one LED4, so that multiple The light emitted by the LED4 can be focused by the light-concentrating cup body 61 respectively, and then emitted together, which reduces the influence of the divergent light between each LED4, thereby ensuring that the light angles of the light emitted by a plurality of LED4 are the same, and the emitted light The spots are more uniform. It should be noted that the number of LEDs 4 installed and fixed on the aluminum substrate 3 of the present invention can be multiple, and is not limited to the six selected for this embodiment.

The aluminum substrate 3 of this embodiment is provided with a positioning groove 31, and the bottom end of the lens 6 is formed with a positioning column 64 matching the positioning groove 31, and the positioning column 64 is clamped in the positioning groove 31, so that the LED4 on the aluminum substrate 3 There is a one-to-one correspondence with the inner concave portion 62 of the focusing cup body 61 .

The lens 6 of this embodiment is formed with a flange 65 for clamping and fixing the lens 6 , and the flange 65 is clamped and fixed with the edge of the upper cover 1 to prevent the lens 6 from loosening.

The heat dissipation body 51 of the heat dissipation device 5 of this embodiment is installed and fixed with a power supply box providing a constant current power supply for the LED4. 72 on the control circuit board 73, the control circuit board 73 is electrically connected with the LED4 on the aluminum substrate 3.

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 improved LED lamp, which includes a top cover (1), a bottom cover (2) made of aluminum alloy, an aluminum substrate (3), an LED (4) installed and fixed on the aluminum substrate (3), the top cover (1) Interlocking with the bottom cover (2), the aluminum substrate (3) is fixed on the bottom cover (2), characterized in that: the bottom end of the bottom cover (2) is provided with a heat sink (5), so The heat dissipation device (5) includes a hollow cylindrical heat dissipation body (51), the outer surface of the heat dissipation body (51) is formed with a plurality of heat dissipation fin groups (52), and the plurality of heat dissipation fin groups (52) are in the form of Circular radial shape. 2. An improved LED lamp according to claim 1, characterized in that: the heat dissipation fin group (52) is formed by connecting two arc-shaped heat dissipation fins (53). 3. An improved LED lamp according to claim 1, characterized in that: a protrusion (54) is formed on the inner surface of the heat dissipation body (51), and a screw hole (55) is opened on the protrusion (54) ). 4. An improved LED lamp according to claim 1, characterized in that: a lens (6) for concentrating light is provided between the upper cover (1) and the aluminum substrate (3), and the lens (6) The bottom of the truncated conical cup body (61) is molded with the same number of LEDs (4) on the aluminum substrate (3), and the bottom of the conical cup body (61) is provided with an interior for placing the LEDs (4). The concave part (62), the top end of the inner concave part (62) is a lower spherical surface (63) convex downward. 5. An improved LED lamp according to claim 4, characterized in that: the aluminum base plate (3) is provided with a positioning groove (31), and the bottom end of the lens (6) is formed with a positioning groove (31) ) matching positioning column (64), and the positioning column (64) is clamped in the positioning groove (31). 6. An improved LED lamp according to claim 4, characterized in that: the lens (6) is formed with a flange (65) for clamping and fixing the lens (6). 7. An improved LED lamp according to any one of claims 1 to 6, characterized in that: a power supply box is installed and fixed in the heat dissipation body (51) of the heat dissipation device (5), and the power supply box includes The box body (71), the box cover (72) interlocking with the box body (71), the control circuit board (73) installed and fixed on the box cover (72), the control circuit board (73) and the aluminum substrate (3 ) on the LED (4) is electrically connected.

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