CN2859218Y

CN2859218Y - LED high-power lamp

Info

Publication number: CN2859218Y
Application number: CNU2005201344084U
Authority: CN
Inventors: 陈邦汉
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-12-29
Filing date: 2005-12-29
Publication date: 2007-01-17
Anticipated expiration: 2015-12-29

Abstract

The utility model discloses a LED high-power lamp, which characterizes in its metal shell, power supply control box and high-power LED light source; the metal shell has bottom wall, the frontal circumference of which extends to form side wall and so as to form a lamp cavity with an opening at the front; the opening of the lamp cavity is fixed glass by a mask; the back circumference of the bottom wall extends to form some radiating fins which are vertical; the high-power LED light source is installed at the front side of the bottom wall; the back end of the lamp cavity is connected with the lamp head shell surrounding said radiating fins; the lamp head shell's wall has ventilation hole corresponding with the radiating fins' direction; said power supply control box is arranged in the lamp head shell or connected with the terminal end of the lamp head shell; there is electric connection passage between the power supply control box and said high-power LED light source. The utility model has advantages of good radiation and long service life.

Description

A kind of LED large-power lamp

Technical field

The utility model relates to a kind of LED lighting device, relates in particular to a kind of LED large-power lamp.

Background technology

When LED is used for lighting field, have little power consumption (being 8-10/one of white flag lamp), the life-span is long, and is reliability and durability, no mercury pollution, no infrared ray composition is photochromic pure in the spectrum, and noon should be fast, frequent switch, can be used for plurality of advantages such as pulsed operation state, be a kind of ideal green environmental protection lighting light source, but only in the low power illumination light fixture, obtained application at present.

Traditional large-power lamp such as shot-light and Projecting Lamp etc., all uses high temperature light source (filament is arranged) in the light fixture.Contain a large amount of infrared rays in the light that is projected, the heat considerable part that light source produced can be dissipated by radiation, is not principal contradiction in the design of light fixture so the heat of light fixture is conducted requirement.And led light source is when specifically being used for light fixture, especially high-power LED element is when integrated use, the heat that needs in time the LED element to be produced is derived, generally require the LED element in use junction temperature should not surpass 110 degrees centigrade, otherwise can make its performance degradation even inefficacy.Could guarantee the reliability of lamp work so the design of high-power LED light fixture such as shot-light or Projecting Lamp etc. then should be gived top priority the ability of conduction dissipation LED element heat, the advantage of LED lamp could be given full play of.

Traditional large-power lamp, such as the shot-light that is used for outdoor advertising, its structure is to be provided with the insulating ceramics lamp socket in a metal shell, the front opening of shell, but opening part is provided with the glass that the facial expression line appears, the light fixture inwall is laid reflective aluminium foil, and light source then is installed in and is arranged in the Ceramic lamp base.It is under sunlight direct projection in summer, and the lamp surface temperature can reach more than the 50-60C degree, and inside is then higher, and the light fixture that obviously is not suitable as LED uses.In fact, the conventional high-temperature light source that someone directly will have now in the large-power lamp is replaced into high-power LED illuminating light source, attempt to obtain to have LED lighting source longevity, the large-power lamp of characteristics such as efficient, low energy consumption, but find in actual use, the actual life of this light fixture is far below life expectancy, even is lower than the service life of existing traditional large-power lamp.Tracing it to its cause is, existing fitting structure still can not solve the heat dissipation problem of high-power LED element when integrated use.

Summary of the invention

Technical problem to be solved in the utility model is that a kind of LED large-power lamp good, long service life that dispels the heat is provided at above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme of being taked: this LED large-power lamp, it is characterized in that it has metal shell, power control box and high-power LED light source, metal shell has diapire, thereby the periphery one in diapire front is extended with sidewall and forms the lamp chamber that front end has opening, but the opening part in lamp chamber is fixed with glass or the similar light transmissive material that the facial expression line appears by the cover frame, the back side of diapire is extended with some radiating fins, radiating fin is trend up and down, high-power LED light source is installed in the front of diapire, the rear end in lamp chamber is connected with encloses within it shell of lamp base with described radiating fin, and have the air vent that adapts with the radiating fin trend on the last lower wall of this shell of lamp base, described power control box is located in the shell of lamp base or is connected the end of shell of lamp base, is provided with electrical connecting passage between power control box and the described high-power LED light source.High-power LED light source preferably adopts the led light source with metal fin, and such as the light source of following structure: cover the skim thermal conductive ceramic on the metal substrate, the great power LED illuminator is mounted on the thermal conductive ceramic layer.Certainly, also can adopt existing on the market other to have the high-power LED light source of metal substrate.In addition, shell of lamp base can be to be structure as a whole with metal shell, also can be the branch body structure, and it can also adopt nonmetallic materials making such as plastics.For the light fixture of open air use, through hole preferably is made as bar hole, with effective block sunlight direct projection to radiating fin.

Have the screw hole that is opened on described diapire front on the described radiating fin, the metal substrate that described high-power LED light source promptly passes high-power LED light source by screw is screwed onto in the screw hole and is installed on the described diapire.

The opening part of described screw hole is provided with the screw detent, locatees when being convenient to drilling and tapping.

The metal inner surface in described lamp chamber is provided with reflection layer.

Described power control box comprises box body and lid, this box body extends for the terminal one of a slice in described radiating fin or several pieces and gets, and the center in these radiating fins has the through wires hole that connects power control box and described lamp chamber, this through wires hole is described electrical connecting passage, is connected with connector lug on the lid.

Described shell of lamp base get for extending from the periphery one at the described diapire back side, and described power control box is one to be connected the individual components of described shell of lamp base end, and so and in described shell of lamp base is fully enclosed in described radiating fin.

Described electrical connecting passage comprises and is opened in the through wires hole that communicates with described lamp chamber on the described shell of lamp base sidewall and is located at the fairlead that communicates with this through wires hole on the described power control box.

Compared with prior art, the utility model high-power LED lamp adopts metal shell, and high-power LED light source is directly installed on the diapire of metal shell, and the diapire back side then is provided with the heat dissipation metal fin, thereby has better heat radiating effect.Especially shell of lamp base surrounds radiating fin within it, and have air vent on the upper wall of shell of lamp base and the lower wall, the trend that adds radiating fin is also for moving towards up and down, thereby around radiating fin, formed good cooling air flow passage, be that cold air enters the passage that flows out from the top again from the below, can form the wind-drawing effect of similar chimney, strengthen radiating effect greatly.Moreover, there is air vent to use because only design on the shell of lamp base for ventilating, its area is less, effectively the block sunlight direct projection is to radiating fin, in order to avoid influence the radiating effect of radiating fin, be equivalent at radiating fin on the contrary and be formed with heat insulation ventilation building enclosure on every side, can reduce sunlit influence and can utilize its heat energy increase to pull out wind energy power, so be particularly suitable for outdoor occasion.In addition, the screw detent is arranged on the metal diapire, can arrange, be convenient to install, and the screw hole that is bored does not influence the sealing of housing and the operation of back side cooling blast in radiating fin according to the quantity of required installation high-power LED light source.Thermally sensitive device can be mounted on a side in next-door neighbour air channel in the power control box, shared heat dissipation wind channel heat radiation.

Generally speaking, the utility model provides a kind of design of LED large-power lamp of practicality, and the heat conduction and the heat that can effectively solve the LED element are distributed problem, have highly reliable, energy-conservation, the long-life, non-maintaining characteristics, series of products are suitable for outdoor and indoorly being used in work under bad environment as shot-light/Projecting Lamp, safeguard the place of inconvenience, as traffic lights, the factory building that the infield is very high, exhibition room, hotel, outdoor big shape billboard, occasions such as Landscape Lighting.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment one;

Fig. 2 is the vertical view of the utility model embodiment one;

Fig. 3 is the partial enlarged drawing of the utility model embodiment one;

Fig. 4 is the structural representation of the utility model embodiment two;

Fig. 5 is the vertical view of the utility model embodiment two.

Specific embodiment

Below in conjunction with embodiment in the accompanying drawing the utility model is described in further detail.

Embodiment one

As Fig. 1～shown in Figure 3, be a preferred embodiment of the present utility model.As Fig. 1～shown in Figure 3, the described LED large-power lamp of present embodiment is a kind of outdoor high power jet lamp that is applicable to, it has metal shell 1, power control box 2 and high-power LED light source 3.The primary structure of the high-power LED light source 3 that present embodiment is used is: metal substrate 3a goes up and covers skim thermal conductive ceramic (not shown), and the great power LED illuminator is mounted on the thermal conductive ceramic layer.Metal shell 1 has diapire 1a, thereby the periphery one in diapire 1a front is extended with sidewall and forms the lamp chamber 4 that front end has opening, scribble the optical reflection coating (not shown) on the metal inner surface in lamp chamber 4, but the opening part in lamp chamber 4 is fixed with the glass 6 that the facial expression line appears by cover frame 5.Thereby the periphery one at the diapire 1a back side is extended with sidewall and forms shell of lamp base 1b, and described power control box 2 promptly is connected the end of shell of lamp base 1b.The back side of diapire 1a also is extended with some radiating fin 1c, and radiating fin 1c is enclosed in the cavity that is surrounded by shell of lamp base 1b and power control box 2.Radiating fin 1c is trend up and down, and correspondingly, the upper wall of shell of lamp base 1b and lower wall all have bar shaped air vent 7, thereby make the space that is surrounded by shell of lamp base 1b and power control box 2 become the passage of cooling blast.

Have the screw hole 8 that is opened on diapire 1a front on the radiating fin 1c, the metal substrate 3a that high-power LED light source 3 passes high-power LED light source 3 by screw 9 is screwed onto in the screw hole 8 and is installed in the front of diapire 1a.In addition, the opening part of screw hole 8 is provided with the screw detent 8a that locatees when being convenient to drilling and tapping.Be provided with electrical connecting passage between power control box 2 and the high-power LED light source 3, electrical connecting passage is made of the fairlead 11 that communicates with this through wires hole 10 that is opened in the through wires hole 10 that communicates with lamp chamber 4 on the shell of lamp base 1b sidewall and be located on the power control box 2, and the power line (not shown) promptly makes the electronic component (not shown) in high-power LED light source 3 and the power control box 2 form and is electrically connected via this electrical connecting passage.In addition, the back side of power control box 2 also is provided with the connector lug 12 that is used for external power supply.

In addition, thermally sensitive device is mounted on a side of the passage of next-door neighbour's cooling blast in the power control box 2, promptly with high-power LED light source 3 shared heat dissipation wind channel heat radiations.

Embodiment two

As Fig. 4, shown in Figure 5, be another preferred embodiment of the present utility model.As Fig. 4, shown in Figure 5, and referring to Fig. 3, the described LED large-power lamp of present embodiment is a kind of indoor high power jet lamp that is applicable to, it has metal shell 1, power control box 2 and high-power LED light source 3.The primary structure of the high-power LED light source 3 that present embodiment is used is: metal substrate 3a goes up and covers the skim heat-conducting glue, and the great power LED illuminator is mounted on the heat-conducting glue.Metal shell 1 has diapire 1a, forms the lamp chamber 4 that front end has opening thereby the periphery one in diapire 1a front is extended with sidewall, scribble optical reflection coating on the metal inner surface in lamp chamber 4, but the opening part in lamp chamber 4 is fixed with the glass 6 that the facial expression line appears by cover frame 5.

The outside of diapire 1a is connected with shell of lamp base 13, and the back side of diapire 1a is extended with some radiating fin 1c, and radiating fin 1c and power control box 2 all are enclosed in the shell of lamp base 13.Radiating fin 1c is trend up and down, and correspondingly, the upper wall of shell of lamp base 13 and lower wall all have circular air vent 14, thereby make shell of lamp base 13 inside become the passage of cooling blast.Described power control box 2 comprises box body 15 and lid 16, this box body 15 gets for the terminal one extension of a slice in described radiating fin 1c, and the center of this radiating fin 1c has the through wires hole 17 that connects power control box 2 and described lamp chamber 4, this through wires hole 17 is the electrical connecting passage between power control box 2 and the high-power LED light source 3, is connected with connector lug 12 on the lid 16.

Have the screw hole 8 that is opened on diapire 1a front on the radiating fin 1c, the metal substrate 3a that high-power LED light source 3 passes high-power LED light source 3 by screw 9 is screwed onto in the screw hole 8 and is installed in the front of diapire 1a.In addition, the opening part of screw hole 8 is provided with the screw detent 8a that locatees when being convenient to drilling and tapping.

Claims

1, a kind of LED large-power lamp, it is characterized in that it has metal shell, power control box and high-power LED light source, metal shell has diapire, thereby the periphery one in diapire front is extended with sidewall and forms the lamp chamber that front end has opening, but the opening part in lamp chamber is fixed with the glass that the facial expression line appears by the cover frame, the back side of diapire is extended with some radiating fins, radiating fin is trend up and down, high-power LED light source is installed in the front of diapire, the rear end in lamp chamber is connected with encloses within it shell of lamp base with described radiating fin, and have the air vent that adapts with the radiating fin trend on the last lower wall of this shell of lamp base, described power control box is located in the shell of lamp base or is connected the end of shell of lamp base, is provided with electrical connecting passage between power control box and the described high-power LED light source.

2, LED large-power lamp according to claim 1, it is characterized in that having on the described radiating fin screw hole that is opened on described diapire front, the metal substrate that described high-power LED light source promptly passes high-power LED light source by screw is screwed onto in the screw hole and is installed on the described diapire.

3, LED large-power lamp according to claim 2 is characterized in that the opening part of described screw hole is provided with the screw detent, locatees when being convenient to drilling and tapping.

4, according to claim 1 or 2 or 3 described LED large-power lamps, it is characterized in that the metal inner surface in described lamp chamber is provided with reflection layer.

5, according to claim 1 or 2 or 3 described LED large-power lamps, it is characterized in that described power control box comprises box body and lid, this box body extends for the terminal one of a slice in described radiating fin or several pieces and gets, and the center in these radiating fins has the through wires hole that connects power control box and described lamp chamber, this through wires hole is described electrical connecting passage, is connected with connector lug on the lid.

6, according to claim 1 or 2 or 3 described LED large-power lamps, it is characterized in that described shell of lamp base gets for extending from the periphery one at the described diapire back side, described power control box is one to be connected the individual components of described shell of lamp base end, and therefore and in described shell of lamp base is fully enclosed in described radiating fin.

7, LED large-power lamp according to claim 6 is characterized in that described electrical connecting passage comprises to be opened in the through wires hole that communicates with described lamp chamber on the described shell of lamp base sidewall and to be located at the fairlead that communicates with this through wires hole on the described power control box.

8, LED large-power lamp according to claim 6 is characterized in that described through hole is a bar hole.