CN201237199Y - LED lamp - Google Patents

Abstract

The utility model relates to the technical field of lighting lamps, in particular to an LED lamp, which comprises an aluminum substrate and an LED arranged and fixed on the aluminum substrate, the bottom end of the aluminum substrate is fixedly connected with a heat dissipation device which comprises a cup-shaped heat dissipation body, a plurality of radiating fins are formed on the outer side surface of the radiating body and are in a circular radial shape, a lens for condensing light is arranged at the top end of the aluminum substrate, an outer cover for covering the lens is fixed at the top end of the heat dissipation device, because the bottom end of the aluminum substrate is fixedly connected with the special heat dissipation device, when the LED works and illuminates, the heat generated by the LED is transmitted to the heat dissipation body of the heat dissipation device after passing through the aluminum substrate and then transmitted to the heat dissipation fins by the heat dissipation body, and the heat radiation fins can be timely and rapidly radiated out, thereby improving the heat radiation effect of the LED lamp and avoiding the shortening of the service life of the LED.

Description

A kind of LED light

Technical field:

The utility model relates to the technical field of lighting fixtures, in particular to an 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 aluminum alloy shells, aluminum substrates, and LEDs mounted and fixed on the aluminum substrates. The aluminum substrates are installed in the shells and fixedly connected with the shells. This kind of LED lights do not have special heat dissipation devices. 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 this utility model is to provide an LED lamp with improved heat dissipation effect by setting 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 heat dissipation device. The heat dissipation device includes a cup-shaped heat dissipation body. The heat dissipation fins are in a circular radial shape, the top of the aluminum substrate is provided with a lens for concentrating light, and the top of the heat dissipation device is fixed with an outer cover for covering the lens.

Wherein, the bottom of the lens is formed with a frustum-shaped concentrating cup having the same number as the LEDs on the aluminum substrate, and the bottom of the concentrating cup is provided with an inner recess for placing LEDs.

Wherein, the top of the heat dissipation body is provided with an upper accommodating area for placing the aluminum substrate and the lens.

Wherein, the aluminum substrate is provided with a positioning hole, and the bottom end of the lens is formed with a positioning post matching the positioning hole, and the positioning post is snapped into the positioning hole.

Wherein, the top end of the heat dissipation body is formed with a stepped edge, and the stepped edge is against the bottom end of the outer cover.

Wherein, the outer cover is a hemispherical shell.

Wherein, a power supply box is installed and fixed on the bottom of the heat dissipation body of the heat dissipation device, and the power supply box includes an upper casing, a lower casing interlocked with the upper casing, and a control circuit board installed and fixed in the power supply box. The circuit board is electrically connected with the LED on the aluminum substrate.

Wherein, the bottom of the heat dissipation body is provided with a lower accommodating area for placing the upper casing of the power supply box.

Wherein, the bottom end of the lower casing of the power supply box is fixedly connected with a lamp cap.

Wherein, the heat dissipating body is provided with a through hole which can communicate the upper accommodating area with the lower accommodating area.

The beneficial effects of the utility model are:

An LED lamp provided by the utility model includes an aluminum base plate and an LED installed and fixed on the aluminum base plate. The bottom end of the aluminum base plate is fixedly connected with a heat dissipation device. The outer surface of the main body is formed with a plurality of cooling fins, the cooling fins are in a circular radial shape, the top of the aluminum substrate is provided with a lens for concentrating light, and the top of the heat dissipation device is fixed with an outer cover for covering the lens , because there is a special cooling device fixedly connected to the bottom of the aluminum base plate, when the LED is working for lighting, the heat generated by the LED passes through the aluminum base plate, then transfers to the cooling body of the cooling device, and then from the cooling body to the cooling fins. And it is dissipated in time and rapidly by the heat dissipation fins, thereby improving the heat dissipation effect of the LED lamp and avoiding the shortening of 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 the bottom view of the utility model cooling device;

Fig. 4 is A-A sectional view of Fig. 3;

Fig. 5 is the bottom view of the utility model lens;

Fig. 6 is a B-B sectional view of Fig. 5 .

Detailed ways:

The utility model will be further described below in conjunction with the accompanying drawings, see Figures 1 to 6, the utility model includes an aluminum substrate 1, an LED 2 installed and fixed on the aluminum substrate 1, and a heat sink 3 is fixedly connected to the bottom of the aluminum substrate 1 The heat dissipation device 3 includes a cup-shaped heat dissipation body 31, a plurality of heat dissipation fins 32 are formed on the outer surface of the heat dissipation body 31, and the heat dissipation fins 32 are in a circular radial shape. The top end of the aluminum substrate 1 A lens 4 for concentrating light is provided, and an outer cover 5 for covering the lens 4 is fixed on the top of the heat dissipation device 3. Since a special heat dissipation device 3 is fixedly connected to the bottom end of the aluminum substrate 1, when the LED 2 is working for lighting, The heat generated by the LED2 passes through the aluminum substrate 1, then passes to the heat dissipation body 31 of the heat dissipation device 3, and then is transmitted from the heat dissipation body 31 to the heat dissipation fins 32, and is dissipated by the heat dissipation fins 32 in a timely manner, thereby improving the performance of the LED lamp. The heat dissipation effect avoids shortening the service life of the LED2.

The bottom of the lens 4 of this embodiment is molded with the same number of truncated conical focusing cups 41 as the number of LEDs on the aluminum substrate 1, and the bottom of the focusing cups 41 is provided with an inner concave portion 42 for placing LED2. The inner concave portion 42 of the cup body 41 is correspondingly accommodated with one LED2, so that the light emitted by multiple LED2s can be respectively focused by the concentrating cup body 41, and then emitted together, reducing the influence of divergent light rays between each LED2 , thereby ensuring that the light emitting angles of the light emitted by the plurality of LED2 are the same, and the emitted light spots are relatively uniform. It should be noted that the number of LEDs 2 installed and fixed on the aluminum substrate 1 of the present invention can be multiple, and is not limited to the three selected for this embodiment.

The top of the heat dissipation body 31 in this embodiment is provided with an upper accommodating area 33 for placing the aluminum substrate 1 and the lens 4, more specifically, the aluminum substrate 1 is fixed to the bottom of the upper accommodating area 33 by screws, so The aluminum substrate 1 is provided with a positioning hole 11, and the bottom end of the lens 4 is formed with a positioning column 43 matching the positioning hole 11, and the positioning column 43 is clamped in the positioning hole 11, so that the LED2 on the aluminum substrate 1 and the lens 4 There is a one-to-one correspondence between the inner concave portions 42 of the two.

In this embodiment, the top of the heat dissipation body 31 is formed with a stepped edge 34, and the stepped edge 34 is against the bottom end of the outer cover 5, thereby fixing the outer cover 5, wherein the outer cover 5 is a hemispherical shell, in order to allow the light to pass through. It is more uniform after passing through the outer cover 5, and the outer cover 5 can be made of milky white glass. Of course, the outer cover 5 can also be made of other materials into different shapes, as long as it can improve the lighting effect.

The bottom of the heat dissipation body 31 of the heat dissipation device 3 in this embodiment is installed and fixed with a power supply box. The circuit board 63, more specifically, the bottom of the heat dissipation body 31 is provided with a lower accommodating area 35 for placing the upper case 61 of the power box, and the heat dissipation body 31 is provided with the upper accommodating area 33 and The through hole 36 connected to the lower accommodation area 35, the through hole 36 can place the power line, so that the control circuit board 63 is electrically connected with the LED2 on the aluminum substrate 1, and the lower housing 62 of the power box is fixed on the heat dissipation body by screws 31 bottom end.

The bottom end of the lower casing 62 of the power supply box in this embodiment is fixedly connected with the lamp holder 7, so that the utility model can be easily installed in the socket of a common lamp.

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 (10)

1, a kind of LED lamp, it comprises aluminium base (1), is fixed on the LED (2) on the aluminium base (1), it is characterized in that: the bottom of described aluminium base (1) is fixedly connected with heat abstractor (3), described heat abstractor (3) comprises cup-shaped heat radiator body (31), the lateral surface of described heat radiator body (31) forms a plurality of radiating fins (32), the rounded radiation shape of radiating fin (32), the top of described aluminium base (1) is provided with the lens (4) that are used for optically focused, and the top of described heat abstractor (3) is fixed with the outer cover (5) that is used to cover lens (4).

2, a kind of LED lamp according to claim 1, it is characterized in that: the bottom of described lens (4) form with aluminium base (1) on the optically focused cup (41) of truncated cone-shaped of LED (2) similar number, the bottom of optically focused cup (41) offers the inner fovea part (42) that is used to place LED (2).

3, a kind of LED lamp according to claim 2 is characterized in that: the top of described heat radiator body (31) offers the last disposal area (33) that is used to place aluminium base (1) and lens (4).

4, a kind of LED lamp according to claim 2, it is characterized in that: offer locating hole (11) on the described aluminium base (1), the bottom of lens (4) forms the reference column (43) with locating hole (11) coupling, and reference column (43) is connected in the locating hole (11).

5, a kind of LED lamp according to claim 1, it is characterized in that: the top of described heat radiator body (31) forms ladder edge (34), and described ladder edge (34) props up the bottom of outer cover (5).

6, a kind of LED lamp according to claim 5 is characterized in that: described outer cover (5) is hemispheric housing.

7, a kind of LED lamp according to claim 3, it is characterized in that: the bottom of the heat radiator body (31) of described heat abstractor (3) is mounted with power pack, the lower house (62) that described power pack comprises upper shell (61), fasten mutually with upper shell (61), be fixed on the control circuit board (63) in the power pack, control circuit board (63) is electrically connected with LED (2) on the aluminium base (1).

8, a kind of LED lamp according to claim 7 is characterized in that: the bottom of described heat radiator body (31) offers the following disposal area (35) of the upper shell (61) that is used to place power pack.

9, a kind of LED lamp according to claim 7, it is characterized in that: the bottom of the lower house of described power pack (62) is fixedly connected with lamp holder (7).

10, a kind of LED lamp according to claim 8 is characterized in that: described heat radiator body (31) is provided with and can will goes up the through hole (36) that disposal area (33) is communicated with following disposal area (35).

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