The LED lamp
Technical field
The utility model belongs to the illuminating lamp technical field, especially relates to a kind of high power LED projector.
Background technology
LED is the abbreviation of Light-Emitting Diode, is the solid luminescent assembly of being processed by semi-conducting material, and its principle of luminosity is directly to convert electric energy into light, and it is luminous to belong to cold property, and led light source has following characteristics as lighting source of new generation:
A kind of luminous efficiency is high, and photoelectric transformation efficiency can reach 20%, improves 4 times than conventional incandescent, improves 2 times than power saving fluorescent lamp;
Environmental protection, dazzle is little, and is radiationless, and no stroboscopic does not produce harmful substance in the use.
Long service life, LED is the solid cold light source, epoxy encapsulation, anti-vibration does not have loosening part yet in the lamp body, do not have that filament light-emitting is prone to burn, heat deposition, can reach 60,000~100,000 hours service life, is more than 10 times of conventional light source service life.
Because above characteristics, led light source replaces conventional light source will become a kind of trend.But effective service requirement lamp pearl node of led light source has to operate in the certain temperature range.Along with the rising of lamp pearl junction temperature, luminous efficiency sharply reduces, and light decay is serious, and the life-span sharply reduces.
The structural design of existing integrated LED floodlight is the design experiences of inheriting tradition incandescent light fitting often, takes the main body of die casting aluminum hull as fitting structure, has thermolysis simultaneously concurrently.Along with the increase of integrated LED lamp pearl power, to heat abstractor require increasingly high.Increase lamp casing that can only be simple under the structure of existing LED Projecting Lamp is in the hope of the raising heat dispersion, but this must cause the increase of light fixture overall weight.And when integrated LED lamp pearl power acquired a certain degree, simple increase light fixture volume can't solve crucial heat dissipation problem.
Summary of the invention
For solving the heat dissipation problem that above-mentioned integrated high power LED floodlight is faced, the utility model provides a kind of LED lamp.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of LED lamp comprises: support housing; Heat abstractor, the integrated lamp pearl of LED, LED power supply; The protection housing, LED lamp pearl fixed structure, reflector; Printing opacity baffle and fixture thereof and light fixture fixed installation structure, the light source that the integrated lamp pearl of great power LED that is no less than 1 is whole light fixture is effectively supplied power by the great power LED power supply.
Wherein, Said support housing has necessary heat sinking function concurrently simultaneously as the carrier of other all parts of light fixture, and the one-sided or many sides of support housing leave the placement space of heat abstractor; And be designed with the heat radiation passage on this space; Match with the containment vessel louvre on the protection housing, it is unobstructed that air is flowed, and radiating effect is obvious;
Wherein, said heat abstractor comprises lamp pearl bonding structure, high-efficiency heat conduction device and radiating fin group, and the used heat by lamp pearl bonding structure absorption large-power LED light bead conducts to the radiating fin group through the high-efficiency heat conduction device with heat, and final air is taken away heat.
Wherein, said LED lamp pearl fixed structure makes the integrated lamp pearl of great power LED combine closely with the lamp pearl laminating apparatus of heat abstractor, to reduce the thermal conduction resistance between integrated lamp pearl of great power LED and the heat abstractor.
Adopt the beneficial effect of technique scheme to be, broken the tactic pattern of traditional Projecting Lamp, the particular design of heat abstractor cooperates the heat dissipation design of support housing and protection housing, guarantees the heat radiation of high-power integrated LED lamp pearl, effectively utilizes the space simultaneously.
Description of drawings
Fig. 1 is the stereogram of the utility model LED lamp
Fig. 2 is the three-dimensional exploded view of the utility model LED lamp
Fig. 3 is the general heat pipe heat abstractor application example back detail drawing of the utility model LED lamp
Fig. 4 is the support housing sketch map of the utility model LED lamp
Fig. 5 is the loop circuit heat pipe heat abstractor sketch map of the utility model LED lamp
Among the figure:
1, support housing 2, heat abstractor 3, the integrated lamp pearl of LED
4, LED power supply 5, protection housing 6, LED lamp pearl fixed structure
7, reflector 8, printing opacity baffle and fixture thereof
9, light fixture fixed installation structure 11, heat radiation passage
12, the fixing screwed hole of light fixture fixed installation structure
13, the fixing screwed hole of protecting sheathing
14, the fixing screwed hole of printing opacity baffle
15, the hole of LED lamp pearl is installed
16, the reinforcement structure of support housing
17, LED power supply locating hole
21, lamp pearl bonding structure 22, high-efficiency heat conduction device 23, radiating fin group
51, louvre
81, light-passing board 82, fixture 83, waterproof washer
The specific embodiment
Below in conjunction with accompanying drawing and embodiment structure, characteristic of the utility model and the effect of being reached are specified.
At first, extremely shown in Figure 5 like Fig. 1, the LED lamp that the utility model provided; Comprise support housing (1), heat abstractor (2), large-power LED light bead (3); Great power LED power supply (4), protection housing (5), LED lamp pearl fixed structure (6); Reflector (7), printing opacity baffle and fixture thereof (8) and light fixture fixed installation structure (9).This structure has been broken the project organization of traditional Projecting Lamp, and the particular design of heat abstractor (3) cooperates the heat dissipation design of support housing (1) and protection housing (5), guarantees the heat radiation of high-power integrated LED lamp pearl (1), effectively utilizes the space simultaneously.
One-sided or the many sides of support housing (1) leave the placement space of heat abstractor (2), and are designed with heat radiation passage (11) on this space, and the shape of heat radiation passage includes but not limited to Common Shape such as strip, circle, triangle; Be designed with the installation and combination structure of other necessary assemblies on the support housing (1) simultaneously, like the screwed hole (12) of light fixture fixed installation structure, fixedly retaining thread hole (14), the hole (15) of mount high power LED lamp pearl, the great power LED power supply locating hole (17) of the screwed hole of protecting sheathing (13), printing opacity baffle.Support housing (1) can take common processing methods such as die casting or Digit Control Machine Tool processing to make.
As shown in Figure 3, heat abstractor (2) is made up of lamp pearl bonding structure (21), high-efficiency heat conduction device (22) and radiating fin group (23).When the LED lamp was lighted, lamp pearl bonding structure (21) absorbed the used heat of large-power LED light bead, through high-efficiency heat conduction device (22) heat is conducted to radiating fin group (23), finally by air heat is taken away.
In order to guarantee that lamp pearl bonding structure (21) effectively absorbs the used heat of large-power LED light bead, this structure is processed by the high-efficiency heat conduction material, like metal or nonmetallic materials such as copper, aluminium, potteries;
High-efficiency heat conduction device (22) be general heat pipe, loop circuit heat pipe the two be used alone or in combination; If high-efficiency heat conduction device (22) for general heat pipe then lamp pearl bonding structure (21) can be tabular; Heat pipe and plate object weld or press together, to subtract the thermal resistance between small lamp bulb bonding structure (21) and the high-efficiency heat conduction device (22); If high-efficiency heat conduction device (22) be loop circuit heat pipe, then lamp pearl bonding structure (21) can design with the evaporator combinations of loop circuit heat pipe, has the performance of efficient heat absorption when reaching applying lamp pearl.The shape of this high-efficiency heat conduction device (22) is bent into the various shapes that are beneficial to heat radiation as required, includes but not limited to Common Shape such as coiled pipe, L shaped, S shape, so that radiating fin group (23) has optimum fin efficiency and reaches best radiating effect.
Radiating fin group (23) is according to the design of protection housing (5) contour shape; In the hope of utilizing the light fixture space to greatest extent; And be designed with on the radiating fin and dodge the groove that support housing is strengthened structure, dodge and prevent fin rocking when strengthening structure along the fin direction.
The effect of protection housing (5) is that protection heat abstractor (2) avoids the external object impact damage, is designed with louvre (51) on it, is beneficial to air and flows, and strengthens heat exchange.The shape of protection housing (5) can freely design according to the moulding needs, for beautifying of light fixture reserved the design space.
The material of protection housing (5) can adopt easy-formation materials such as metal, fiberglass or plastics, and processing is adopted often has modes such as injection moulding or punching press to solve.When protection housing (5) is the highly heat-conductive material metal, can design housing and contact with heat abstractor (2) part, have certain thermolysis simultaneously.
The integrated lamp pearl of great power LED (3) that is no less than 1 is the light source of whole light fixture, by effectively power supply of great power LED power supply (4).For intensive space great power LED power supply (4) can be fixed in above the support housing (1).
LED lamp pearl fixed structure (6) is used for fixing the integrated lamp pearl of great power LED (3); The integrated lamp pearl of great power LED (3) is combined closely with the lamp pearl laminating apparatus (21) of heat abstractor (2); Can smear one deck heat-conducting silicone grease therebetween, to reduce the thermal conduction resistance between integrated lamp pearl of great power LED (3) and the heat abstractor (2).
Reflector (7) is positioned at the top of support housing (1), and is consistent with the profile of support housing (1), and the bottom is that integrated lamp pearl of great power LED (3) and LED lamp pearl fixed structure (6) leave the position, hole.Reflector (7) can effectively be regulated light fixture and go out optical range, the light projector effect that acquisition needs.
Printing opacity baffle and fixture thereof (8) are made up of light-passing board (81), fixture (82) and waterproof washer (83); Its effect is with preventing the impact failure of external object to the integrated lamp pearl of great power LED (3); Have water-proof function simultaneously, stop water to flow in the lamp cavity.Light-passing board (81) is high light transmissive material, can select tempered glass or lucite etc. for use; Fixture (82) is used for fixing light-passing board (81); Waterproof washer (83) is the deformable material of rubber or other materials, and the device that is fixed (82) is pressed between light-passing board (81) and the support housing (1).
The two ends of light fixture fixed installation structure (9) have screw to cooperate with screw on the support housing (1) to be used for fixing the installation floodlight, and its structure can be taked traditional installing rack form.
This instance is selected two integrated lamp pearls of great power LED (3) for use, is supplied power by two great power LED power supplies (4).High-power integrated LED floodlight back detailed structure is as shown in Figure 3.Support housing (1) is as the carrier of whole lamp part.Specifically design like Fig. 4, support housing (1) both sides relatively is designed with heat radiation passage (11), and passage (11) adopts the strip structure; The screwed hole (12) that is designed with light fixture fixed installation structure on the support housing (1) is used to install light fixture fixed installation structure (9); Fixedly the screwed hole of protecting sheathing (13) is used for fixing protection housing (5); The retaining thread hole (14) of printing opacity baffle is used for fixing light projector baffle and mounting structure (8) thereof; The top fixedly lamp pearl bonding structure (21) of heat abstractor (2) in the mount high power LED lamp hole of bead (15).
Should use two cover heat abstractors (2) of instance all to select for use 4 ordinary copper heat pipes, be bent into irregular S shape as high-efficiency heat conduction device (22); Lamp pearl bonding structure (21) is square copper coin, leaves fixing hole above; Be welded to connect in order to be beneficial to high-efficiency heat conduction device (22) and lamp pearl bonding structure (21), be processed into the afterbody of high-efficiency heat conduction device (22) flat-shaped; Radiating fin group (23) is that multi-disc aluminium fin is formed, and leaves the reinforcement structure (16) that groove is used to dodge support housing (1) above the radiating fin group (23), guarantees that simultaneously fins set can not rock along the fin direction.
The high-efficiency heat conduction device of the heat abstractor of this instance (2) adopts loop circuit heat pipe, and its structure is as shown in Figure 5.The circuit design of loop circuit heat pipe becomes coiled pipe, and the lamp pearl bonding structure (21) of heat abstractor (2) is the evaporimeter of loop circuit heat pipe.
More than the embodiment of the utility model is specified, but said content is merely the preferred embodiment of the utility model, can not be considered to be used to limit the practical range of the utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the utility model.