CN201237096Y

CN201237096Y - Improved LED lamp

Info

Publication number: CN201237096Y
Application number: CNU2008200503458U
Authority: CN
Inventors: 吴新伟; 蓝开锋
Original assignee: Dongguan Yijia Photoelectricity Science & Technology Co Ltd
Current assignee: Dongguan Yijia Photoelectricity Science & Technology Co Ltd
Priority date: 2008-07-08
Filing date: 2008-07-08
Publication date: 2009-05-13
Anticipated expiration: 2018-07-08

Abstract

The utility model relates to the technical field of lamps and lanterns, in particular to an improved LED light including an upper cover, a bottom cover made of aluminium alloy, an aluminium base and an LED fixedly installed on the aluminium base. The upper cover and the bottom cover are bucked mutually; the aluminium base is fixed on the bottom cover; a heat sink is arranged at the bottom end of the bottom cover; the heat sink includes a heat sink body shaped like a hollow cylinder; a plurality of radiating fin groups are formed on the outside surface of the heat sink body and arranged circularly in a radiate form; the special heat sink is arranged at the bottom end of the bottom cover, so that when the LED works for illumination, the heat generated by the LED is sent to the heat sink after sequentially passing through the aluminium base and the bottom cover made of aluminium alloy, and rapidly sent out in time by the radiating fin groups on the outside surface of the heat sink body, the heat dissipation effect of the LED light can be further improved, and the service life of the LED can be prevented from being shortened.

Description

A kind of improved LED light fixture

Technical field:

The utility model relates to field of illumination lamp technology, relates in particular to a kind of improved LED light fixture.

Background technology:

Because long service life, the energy consumption of LED (Light Emitting Diode, light emitting diode) are low, energy savings is remarkable, LED has been widely used in the daily life as light source, as lightings such as cup lamp, shot-light, auto lamps.Yet along with the increase of LED quantity in the LED light fixture and high-power, high-brightness LED etc. are developed successively, the heat that is produced during the work of LED light fixture is just progressively upwards soaring.Therefore, the heat that how the LED light fixture is produced looses rapidly, becomes the significant problem that present LED light fixture technology must solve.

The shell that existing LED light fixture is mainly made by aluminium alloy, aluminium base, the LED that is fixed on the aluminium base forms, aluminium base is installed in the enclosure, and fixedly connected with shell, this kind LED light fixture is not provided with special heat abstractor, it mainly is the heat conductivility that utilizes aluminium base and shell self, the heat that produces when LED is worked is led away, but, because the volume of aluminium base is less, causes radiating efficiency not high, and the shell of LED light fixture, owing to be subjected to the restriction of face shaping, its radiating effect is relatively poor, and a large amount of heats that produce in the time of can not in time promptly LED being worked are led away, causes shorten the service life of LED.

The utility model content:

The purpose of this utility model is exactly to provide a kind of by the improved LED light fixture that special radiating device improves radiating effect is set at the deficiency of prior art existence.

To achieve these goals, the technical solution adopted in the utility model is:

It comprises loam cake, aluminium alloy manufacturing bottom, aluminium base, be fixed on the LED on the aluminium base, loam cake and bottom fasten mutually, aluminium base is fixed on the bottom, the bottom of described bottom is provided with heat abstractor, described heat abstractor comprises the heat radiator body that is hollow tube-shape, the lateral surface of heat radiator body forms a plurality of radiating fin groups, the rounded radiation shape of described a plurality of radiating fin groups.

Wherein, described radiating fin group is to be formed by connecting by two curved radiating fins.

Wherein, the medial surface of described heat radiator body forms projection, offers screw on the projection.

Wherein, be provided with the lens that are used for optically focused between described loam cake and the aluminium base, the bottom of lens form with aluminium base on the optically focused cup of truncated cone-shaped of LED similar number, the bottom of optically focused cup offers the inner fovea part that is used to place LED, the top of inner fovea part is a protruding lower peripheral surface downwards.

Wherein, offer locating slot on the aluminium base, the bottom of lens forms the reference column with the locating slot coupling, and reference column is connected in the locating slot.

Wherein, form the flange that is used to connect and fix lens on the described lens.

Wherein, be mounted with power pack in the heat radiator body of described heat abstractor, the lid that described power pack comprises box body, fasten mutually with box body, be fixed on the control circuit board on the lid, control circuit board is electrically connected with LED on the aluminium base.

The utility model beneficial effect is:

A kind of improved LED light fixture that the utility model provides comprises loam cake, the bottom that aluminium alloy is made, aluminium base, be fixed on the LED on the aluminium base, loam cake and bottom fasten mutually, aluminium base is fixed on the bottom, the bottom of described bottom is provided with heat abstractor, described heat abstractor comprises the heat radiator body that is hollow tube-shape, the lateral surface of heat radiator body forms a plurality of radiating fin groups, the rounded radiation shape of described a plurality of radiating fin groups, owing to be provided with special heat abstractor in the bottom of bottom, when the LED operating illumination, the heat that LED produced passes through aluminium base successively, behind the bottom that aluminium alloy is made, reach the heat radiator body of heat abstractor, in time promptly distribute by the radiating fin group that is molded over the heat radiator body lateral surface again, thereby improve the radiating effect of LED light fixture, avoid shorten the service life of LED.

Description of drawings:

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

Fig. 2 is a decomposing schematic representation of the present utility model;

Fig. 3 is the structural representation of the utility model heat abstractor;

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

Fig. 5 is the A-A cutaway view of Fig. 4.

The specific embodiment:

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 2 that aluminium alloy is made, aluminium base 3, be fixed on the LED4 on the aluminium base 3, loam cake 1 fastens mutually with bottom 2, aluminium base 3 is fixed on the bottom 2, the bottom of described bottom 2 is provided with heat abstractor 5, described heat abstractor 5 comprises the heat radiator body 51 that is hollow tube-shape, the lateral surface of heat radiator body 51 forms a plurality of radiating fin groups 52, the radiation shape that described a plurality of radiating fin group 52 is rounded, owing to be provided with special heat abstractor 5 in the bottom of bottom 2, when the LED4 operating illumination, the heat that LED4 produced passes through aluminium base 3 successively, behind the bottom 2 that aluminium alloy is made, reach the heat radiator body 51 of heat abstractor 5, in time promptly distribute by the radiating fin group 52 that is molded over heat radiator body 51 lateral surfaces again, thereby improve the radiating effect of LED light fixture, avoid shorten the service life of LED4.

The radiating fin group 52 of present embodiment is to be formed by connecting by two curved radiating fins 53, this structure can further increase the area of dissipation of heat abstractor 5, certainly, described radiating fin group 52 also can be formed by connecting by the radiating fin 53 of multi-disc, is not limited to two curved radiating fins 53 and is formed by connecting.

The medial surface of present embodiment heat radiator body 51 forms projection 54, offers screw 55 on the projection 54, makes heat abstractor 5 can be fixedly connected on the bottom of bottom 2 by screw.

Be provided with the lens 6 that are used for optically focused between present embodiment loam cake 1 and the aluminium base 3, the bottom of lens 6 form with aluminium base 3 on the optically focused cup 61 of truncated cone-shaped of LED4 similar number, the bottom of optically focused cup 61 offers the inner fovea part 62 that is used to place LED4, the top of inner fovea part 62 is downward protruding lower peripheral surface 63, inner fovea part 62 all corresponding ccontaining LEDs 4 of each optically focused cup 61, the light that makes a plurality of LED4 send can be respectively through after the focusing of optically focused cup 61, launch together again, reduced the divergent rays influence between each LED4, thereby the rising angle that has guaranteed the light that a plurality of LED4 send is identical, and the hot spot of outgoing is comparatively even.Need to prove that the LED4 quantity that the utility model installs and fixes on the aluminium base 3 can be for a plurality of, be not limited to be selected six of present embodiment.

Offer locating slot 31 on the aluminium base 3 of present embodiment, the bottom of lens 6 forms the reference column 64 with locating slot 31 couplings, and reference column 64 is connected in the locating slot 31, thereby makes that the LED4 on the aluminium base 3 is corresponding one by one with the inner fovea part 62 of optically focused cup 61.

Form the flange 65 that is used to connect and fix lens 6 on the lens 6 of present embodiment, flange 65 connects and fixes with the edge of loam cake 1, prevents getting loose of lens 6.

Install and fix the power pack that promising LED4 provides constant-current supply in the heat radiator body 51 of present embodiment heat abstractor 5, the lids 72 that described power pack comprises box body 71, fasten mutually with box body 71, be fixed on the control circuit board 73 on the lid 72, control circuit board 73 is electrically connected with LED4 on the aluminium base 3.

Certainly, the above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1, a kind of improved LED light fixture, it comprises loam cake (1), the bottom (2) that aluminium alloy is made, aluminium base (3), be fixed on the LED (4) on the aluminium base (3), loam cake (1) fastens mutually with bottom (2), aluminium base (3) is fixed on the bottom (2), it is characterized in that: the bottom of described bottom (2) is provided with heat abstractor (5), described heat abstractor (5) comprises the heat radiator body (51) that is hollow tube-shape, the lateral surface of heat radiator body (51) forms a plurality of radiating fin groups (52), the rounded radiation shape of described a plurality of radiating fin groups (52).

2, a kind of improved LED light fixture according to claim 1, it is characterized in that: described radiating fin group (52) is to be formed by connecting by two curved radiating fins (53).

3, a kind of improved LED light fixture according to claim 1, it is characterized in that: the medial surface of described heat radiator body (51) forms projection (54), offers screw (55) on the projection (54).

4, a kind of improved LED light fixture according to claim 1, it is characterized in that: be provided with the lens (6) that are used for optically focused between described loam cake (1) and the aluminium base (3), the bottom of lens (6) form with aluminium base (3) on the optically focused cup (61) of truncated cone-shaped of LED (4) similar number, the bottom of optically focused cup (61) offers the inner fovea part (62) that is used to place LED (4), and the top of inner fovea part (62) is downward protruding lower peripheral surface (63).

5, a kind of improved LED light fixture according to claim 4, it is characterized in that: offer locating slot (31) on the described aluminium base (3), the bottom of lens (6) forms the reference column (64) with locating slot (31) coupling, and reference column (64) is connected in the locating slot (31).

6, a kind of improved LED light fixture according to claim 4 is characterized in that: form the flange (65) that is used to connect and fix lens (6) on the described lens (6).

7, according to any described a kind of improved LED light fixture of claim 1 to 6, it is characterized in that: be mounted with power pack in the heat radiator body (51) of described heat abstractor (5), the lid (72) that described power pack comprises box body (71), fasten mutually with box body (71), be fixed on the control circuit board (73) on the lid (72), control circuit board (73) is electrically connected with LED (4) on the aluminium base (3).