CN202915192U

CN202915192U - Light-emitting diode (LED) high shed lamp

Info

Publication number: CN202915192U
Application number: CN2012205988042U
Authority: CN
Inventors: 徐国钢
Original assignee: WU HAN SUNSHINE BRT NEW ENERYG CO Ltd
Current assignee: WU HAN SUNSHINE BRT NEW ENERYG CO Ltd
Priority date: 2012-11-14
Filing date: 2012-11-14
Publication date: 2013-05-01
Anticipated expiration: 2022-11-14

Abstract

The utility model discloses a light-emitting diode (LED) high shed lamp which comprises LED light sources, an aluminum substrate, a lamp body and a constant current source. A plurality of LED light sources are evenly arranged on the aluminum substrate and arranged inside the lamp body, and the constant current source and the LED power supply are connected to provide power for the plurality of the LED light sources. The aluminum substrate is a circular-shaped flat plate, and the lamp body is an aluminous flat circular-shaped cover body containing the aluminum substrate. The lamp body is of a hollow structure, and is divided into an inner circle, a middle circle and an outer circle along the radial direction of the lamp body. The middle circle is contacted with the aluminum substrate through thermal conductive silicone grease, a plurality of blades are arranged in the inner circle in a radiation distributing mode along the radial direction of the inner circle, the inner circle and the outer circle of the lamp body are respectively provided with a plurality of heat-dissipation pieces, and the plurality of the heat-dissipation pieces are arranged in the radiation distributing mode along the radial directions of the inner circle and the outer circle of the lamp body. A hollow structure is arranged between the heat-dissipating pieces of the inner circle and the heat-dissipating pieces of the outer circle, the blades of the middle circle transmit the heat transmitted by the thermal conductive silicon grease of the LED light sources and the aluminum substrate to the heat-dissipating pieces of the inner circle and the outer circle for carrying out heat dissipation. According to the LED high shed lamp, due to the fact that the hollow structure is adopted by the lamp body and the hollow heat-dissipating pieces of the inner circle and the outer circle are arranged, air convection is greatly improved, thermal energy generated by the LED light sources can be released in time, and therefore lumens depreciation is slowed down and service life of a lamp is prolonged.

Description

The high canopy lamp of LED

[technical field]

The utility model relates to the LED lighting field, particularly the high canopy lamp of a kind of LED.

[background technology]

Along with the continuous progress of human lighting engineering, progressively bring into use in the industry LED as high canopy lamp source.LED has the following advantages and characteristics as the efficient semiconductor light sources of a kind of novel green: luminous efficiency is high, the light fixture reflection loss is low, power and energy saving, low-voltage safety, directional lighting are beneficial to the lamp distribution design, do not have stroboscopic phenomenon, long service life to wait so long.

Yet heat radiation is that LED light fixture (comprising the high canopy lamp of LED) needs one of key problems-solving always.Because the brightness of the high canopy lamp of LED is high, caloric value is large, use if the bad meeting of dispelling the heat directly causes LED quick aging, stability to reduce even impact is normal.

At present, most of producer only considers to satisfy the aspect requirements such as LED light efficiency, brightness when design LED high canopy lamp, and the heat radiation during to the practical application of the high canopy lamp of great power LED is not considered.Therefore, the profile of a lot of high canopy lamps of LED is imitated traditional bulkhead lamp capable, though radiator is also arranged interior, area of dissipation is little, and cross-ventilation is not good.So just cause light fixture in use, the heat that led light source produces can't be derived smoothly, thereby the junction temperature that makes led light source improves rapidly, light decay is accelerated, luminous flux sharply descends, and not only affects illuminating effect, and greatly reduces the service life of LED light fixture.

Therefore, LED is high, and the canopy lamp will be used widely in market, how to accomplish that heat radiation fully becomes a problem demanding prompt solution.

[utility model content]

In view of this, for overcoming the deficiencies in the prior art, the utility model provides the high canopy lamp of the good LED of a kind of heat dispersion.

The high canopy lamp of a kind of LED comprises led light source, aluminium base, lamp body and constant-current source, and some described led light sources are evenly distributed on the described aluminium base and are arranged in the described lamp body, and described constant-current source and described led light source are connected to its power supply.Described aluminium base is ring plate, and described lamp body is the aluminium matter flat, annular cover body of accommodating described substrate.Described lamp body is hollow structure, described lamp body radially is divided into inner ring, centre circle and outer ring from inside to outside along it, described centre circle contacts with aluminium base by heat-conducting silicone grease, described inner ring radially radiates some blades of distribution along it, the inner ring of described lamp body and outer ring are respectively equipped with the some fin that radially radiate distribution along it, be engraved structure between the fin of described inner ring and outer ring, dispel the heat on the fin that the blade of described centre circle will be transmitted to described inner ring and outer ring by described led light source and the heat on the aluminium base of described heat-conducting silicone grease conduction.

Preferably, the surface of the fin of described inner ring and outer ring is curling arcuate stream line.

Preferably, the adjacent madial wall in the outer ring of described lamp body and described aluminium base is provided with reflective membrane.

Preferably, the high canopy lamp of described LED further comprises the safety glass of annular, described safety glass is installed in the annular opening place of the circular cowling of described lamp body, and the inner ring of described safety glass and outer ring are screwed on described lamp body by sealing strip and large and small cover respectively.

Preferably, the high canopy lamp of described LED further comprises lamp bracket and for the suspension ring that hang the high canopy lamp of described LED, described lamp bracket is installed in the back of described lamp body, and described suspension ring are arranged on the described lamp bracket.

Preferably, described LED is high, and the canopy lamp further comprises power shelf, and described constant-current source is fixed on the back of described lamp body by described power shelf.

The lamp body of the high canopy lamp of LED of the present utility model adopts hollow structure to add the hollow out fin of Internal and external cycle, has greatly improved the convection current of air, and the heat energy that led light source is produced is in time derived, thereby slows down its light decay, prolongs the life-span of light fixture.In addition, the arc fin of Internal and external cycle is arranged as circular array, matches with the profile of light fixture circle, has also played decorative effect attractive in appearance in heat radiation.

[description of drawings]

Fig. 1 is the isometric exploded view of the high canopy lamp of preferred embodiment LED of the present utility model.

Fig. 2 is the three-dimensional view after the high canopy lamp assembling of the LED among Fig. 1.

Fig. 3 is the three-dimensional view of another angle after the high canopy lamp assembling of the LED among Fig. 1.

Fig. 4 is the upward view of the high canopy lamp of the LED among Fig. 2.

Fig. 5 is the front view of the high canopy lamp of the LED among Fig. 2.

Fig. 6 is the top view of the high canopy lamp of the LED among Fig. 2.

[specific embodiment]

For understanding better the utility model, below with reference to instantiation the utility model is described in detail.

In order to improve the not enough situation of the high canopy lamp heat radiation of existing LED, the utility model provides the high canopy lamp of a kind of novel LED.See also Fig. 1, the high canopy lamp of preferred embodiment LED of the present utility model comprises led light source 1, substrate 2, lamp body 3, constant-current source 4, lamp bracket 5, suspension ring 6, power shelf 7, heat-conducting silicone grease 8, reflective membrane 9, sealing strip 10, safety glass 11, large cover 12 and facet lid 13.

Led light source 1 is evenly distributed on the aluminium substrate 2 of annular, and is arranged in the circular cowling of lamp body 3.Lamp body 3 is flat, annular cover body shape, and constant-current source 4 and the lamp bracket 5 of promising led light source 1 power supply installed at its back.Lamp bracket 5 is provided with suspension ring 6, the high canopy lamp of whole LED can be hung up.Constant-current source 4 is installed in the back of lamp body 3 by power shelf 7.Be provided with heat-conducting silicone grease 8 between led light source 1 and the lamp body 3, the heat that led light source 1 is produced is transmitted on the lamp body 3.The madial wall that lamp body 3 is adjacent with the outer ring of substrate 2 is provided with reflective membrane 9, and the light that led light source 1 on the substrate 3 sends is assembled.The annular opening place of the circular cowling of lamp body 3 is equipped with safety glass 11, and the inner ring of safety glass 11 and outer ring are screwed on lamp body 3 by sealing strip 10 and big or

small cover

12,13 respectively.

Lamp body 3 is made for aluminum material, adopts the loop configuration of hollow, radially can be divided into inner ring, centre circle and outer ring (for further details, please refer to Fig. 4) along it.Centre circle is the part that contacts with substrate 2 on the lamp body 3, is provided with heat-conducting silicone grease 3 therebetween.Centre circle is provided with the some blades that radially radiate distribution along it, the heat on the substrate 2 can be exported on outer ring and the inner ring.Large cover 12 and the facet lid 13 common safety glass 11 that compress, anti-sealing enters the centre circle of lamp body 3, thereby reaches the purpose that makes substrate 2 waterproof.The inner ring of lamp body 3 and outer ring are respectively the part that centre circle is inside, extend outward, inner ring is provided with the some fin that radially radiate distribution along it, the outer ring is provided with equally along it and radially radiates some fin that direction distributes, be engraved structure between the fin of its inner ring and outer ring, can strengthen the front of lamp body 3 and the convection current between the back, strengthen radiating effect.The fin of inner ring and outer ring all is adopted as curling arcuate stream line design, to increase cooling surface area.The structure of lamp body 3 can fast with exporting to as early as possible the air from the heat that led light source 1 is transmitted to the centre circle part through heat-conducting silicone grease 8, allow the temperature of led light source 1 keep within the range of permission.

The high canopy lamp of above-mentioned LED is aspect function and profile, and the perfect unification of contrasting adopts hollow structure to add the curling fin of Internal and external cycle, greatly improved the convection current of air, the heat energy that led light source is produced is in time derived, thereby slows down its light decay, prolongs the life-span of light fixture.In addition, the arc fin of Internal and external cycle is arranged as circular array, matches with the profile of light fixture circle, has also played decorative effect attractive in appearance in heat radiation.

The above exemplifying embodiment has only been expressed part embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.

Claims

1. high canopy lamp of LED, comprise led light source, aluminium base, lamp body and constant-current source, some described led light sources are evenly distributed on the described aluminium base and are arranged in the described lamp body, described constant-current source and described led light source are connected to its power supply, it is characterized in that: described aluminium base is ring plate, described lamp body is the aluminium matter flat, annular cover body of accommodating described substrate, described lamp body is hollow structure, described lamp body radially is divided into inner ring from inside to outside along it, centre circle and outer ring, described centre circle contacts with aluminium base by heat-conducting silicone grease, described inner ring radially radiates some blades of distribution along it, the inner ring of described lamp body and outer ring are respectively equipped with the some fin that radially radiate distribution along it, be engraved structure between the fin of described inner ring and outer ring, dispel the heat on the fin that the blade of described centre circle will be transmitted to described inner ring and outer ring by described led light source and the heat on the aluminium base of described heat-conducting silicone grease conduction.

2. the high canopy lamp of LED according to claim 1, it is characterized in that: the surface of the fin of described inner ring and outer ring is curling arcuate stream line.

3. the high canopy lamp of LED according to claim 2, it is characterized in that: the adjacent madial wall in the outer ring of described lamp body and described aluminium base is provided with reflective membrane.

4. the high canopy lamp of LED according to claim 2, it is characterized in that: the high canopy lamp of described LED further comprises the safety glass of annular, described safety glass is installed in the annular opening place of the circular cowling of described lamp body, and the inner ring of described safety glass and outer ring are screwed on described lamp body by sealing strip and large and small cover respectively.

5. the high canopy lamp of LED according to claim 2, it is characterized in that: the high canopy lamp of described LED further comprises lamp bracket and is used for hanging the suspension ring of the high canopy lamp of described LED, described lamp bracket is installed in the back of described lamp body, and described suspension ring are arranged on the described lamp bracket.

6. the high canopy lamp of LED according to claim 2, it is characterized in that: described LED is high, and the canopy lamp further comprises power shelf, described constant-current source is fixed on the back of described lamp body by described power shelf.