CN101280897B - High-power LED road lamp - Google Patents

High-power LED road lamp Download PDF

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Publication number
CN101280897B
CN101280897B CN2008100251606A CN200810025160A CN101280897B CN 101280897 B CN101280897 B CN 101280897B CN 2008100251606 A CN2008100251606 A CN 2008100251606A CN 200810025160 A CN200810025160 A CN 200810025160A CN 101280897 B CN101280897 B CN 101280897B
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constant
led
circuit
led lamp
lamp pearl
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CN101280897A (en
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黄爱国
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/72Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting

Abstract

The invention relates to a high-power LED road lamp including a metallic heat radiation base panel, a reflecting, a LED lamp bead array and LED electric power drive circuit; the heat radiation base panel has a arch column casing, the LED lamp bead array is arranged on circular arc surface of the arch column casing; the reflecting panel has a reflecting section matching with arch column casing circular arc surface of the heat radiation base panel; the reflecting section mainly comprises panel bodies array with quadrangular frustum casing shape, and lamp bead holes are arranged at center of each panel body with quadrangular frustum casing shape; each LED lamp bead of the LED lamp bead array is in the lamp bead hole with quadrangular frustum casing shape corresponding with the reflecting section of the reflecting panel. In use, according to the invention, light reflected by the reflecting section of the reflecting panel forms a rectangular light beam to project on road, which achieves effect of uniformly irradiating reflection ray on road; the whole configuration of the reflecting section of the reflecting panel is crown face, which is favor for extending illumination area of road lamps.

Description

High-power LED street lamp
Technical field
The present invention relates to a kind of high-power LED street lamp.
Background technology
The LED street lamp is light emitting diode road lamp just.Chinese patent literature CN1821651A discloses a kind of high-power LED street lamp, comprise heat dissipation base, be embedded with at least three LED lamps that are connected in the heat dissipation base concave bottom surface, heat dissipation base recess periphery is fitted with diffuser, has the bar body radiator of ad hoc meter with the corresponding outside of heat dissipation base concave bottom surface, LED lamp lamp sleeve is connected to corresponding lens, clamped the lens securing cover plate between heat dissipation base and the diffuser, this lens securing cover plate is shaped on the lens opening with the corresponding number of LED lamp, and the lens end is through the lens opening build-in of correspondence.
Above-mentioned the deficiencies in the prior art part is: adopt lens that the light that the LED lamp sends is carried out scattering, cost height, complex structure, inconvenience and installation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of simple in structure, high-power LED street lamp that the light scattering is even and with low cost.
For solving the problems of the technologies described above, high-power LED street lamp of the present invention comprises: the heat dissipation metal base; Its design feature is: also comprise reflective panel, LED lamp pearl array and the LED power driving circuit that links to each other with LED lamp pearl array; Heat dissipation base has arc post housing, and LED lamp pearl array is located on the arc surface of this arc post housing; Reflective panel has the light-reflecting portion that matches with the arc surface of the arc post housing of described heat dissipation base; This light-reflecting portion mainly is made of the plate body array of truncated rectangular pyramids hull shape, and the central authorities of the plate body of each truncated rectangular pyramids hull shape are provided with the lamp hole of bead; Each LED lamp pearl of LED lamp pearl array is arranged in the lamp hole of bead of plate body of a corresponding truncated rectangular pyramids hull shape of the light-reflecting portion of reflective panel.
Comprise LED lamp pearl in the above-mentioned LED lamp pearl array with different light rays angle of departure.
Above-mentioned reflective panel is an one time punching molded metal decking behind the plating reflective membrane.
High-power LED street lamp of the present invention also comprises the strip aluminium base that the direction that parallels along the axis with arc post housing is provided with; LED lamp pearl array is made of 2~10 row LED lamp pearls, the quantity of aluminium base is identical with the line number of LED lamp pearl, and each strip aluminium base is corresponding with the corresponding LED of the delegation lamp pearl in the described LED lamp pearl array, also is to be contacted by the arc surface of this aluminium base with arc post housing after each LED lamp pearl that goes is arranged on the corresponding aluminium base earlier again; Each aluminium base all has the conducting wire that is positioned on its plate body outer surface, each LED lamp pearl on each aluminium base is connected in the conducting wire of this aluminium base, thereby each section lead of this conducting wire and each LED lamp pearl of being connected between the respective wire constitute a corresponding LED lamp pearl series circuit; The positive terminal of each LED lamp pearl series circuit, just a section lead of the positive pole of first LED lamp pearl of connection of corresponding conducting wire is electrically connected with the positive pole of the power output end of described LED power driving circuit, the negative pole end of each LED lamp pearl series circuit, just a section lead of the negative pole of last LED lamp pearl of connection of this conducting wire is connected with the negative electricity of the power output end of LED power driving circuit, thereby LED lamp pearl array is made of 2~10 LED lamp pearl series circuits parallel with one another on circuit structure.
High-power LED street lamp of the present invention also comprises the insulation catch that covers the strip on each aluminium base outer surface, is provided with the perforate that the illuminating part that makes described each LED lamp pearl stretches out at each insulation catch with described each LED lamp pearl corresponding section; Each catch that insulate is fixed on the arc post housing by screw with corresponding aluminium base.
High-power LED street lamp of the present invention also comprises translucent cover; Described heat dissipation base is fixed together by securing member by base portion and pedestal part and constitutes; The base portion of heat dissipation base has arranges the groups of fins that is provided with; The main body of the pedestal part of heat dissipation base then is arc post housing; Translucent cover is arranged on the base portion.
Be provided with the thin layer heat conductive silica gel of paste or the thin layer conductive graphite of paste between above-mentioned each aluminium base and the arc post housing; Be provided with the thin layer conductive graphite of paste or the thin layer heat conductive silica gel of paste between the base portion of heat dissipation base and the pedestal part.
High-power LED street lamp of the present invention also comprises catch assembly; Every group of catch assembly includes the connecting ring of the fixture that has butt hook, side's annular and has the hasp of butt hook, and the opening of the butt hook of the opening of the butt hook of fixture and hasp all is in clamped condition; Every side in the relative both sides of described translucent cover all has 2 hasp grooves; Base portion at heat dissipation base also comprises annular groove base; The annular lower end part of translucent cover is in the annular groove base of base portion; The fixture of each catch assembly is fixed on the outer end sidewall of annular groove base of base portion of heat dissipation base; Side ring section in the two relative side ring sections of connecting ring is hinged in the butt hook of fixture, and another side ring section in the two relative side ring sections of connecting ring is hinged in the butt hook of hasp.Hasp also has button body and the top hasp head to the bending of button body; During assembling, the hasp head elasticity of each hasp is fastened on the cell wall of a corresponding hasp groove of translucent cover, thereby translucent cover firmly is fastened on the base portion of heat dissipation base.
The above-mentioned LED of stating power driving circuit comprises: current rectifying and wave filtering circuit, constant-current control circuit and constant-current circuit; The power output end of current rectifying and wave filtering circuit connects the power input of constant-current control circuit; The power output end of current rectifying and wave filtering circuit also is the positive pole of the power output end of LED power driving circuit, and is electrically connected with the positive terminal of each LED series circuit; The constant current input of constant-current circuit is as the negative pole of the power output end of LED power driving circuit, and is electrically connected with the negative pole end of each LED series circuit; The constant current output head grounding of constant-current circuit; The control end of the constant current control signal output termination constant-current circuit of constant-current control circuit; The feedback signal input of the feedback signal output termination constant-current control circuit of constant-current circuit.
Control circuit when above-mentioned LED power driving circuit also comprises; Constant-current control circuit also is provided with the control model signal input part; The time control circuit the control model signal input part of control signal output termination constant-current control circuit.
The present invention has positive effect: in (1) high-power LED street lamp of the present invention, LED lamp pearl is located on the arc post housing, and reflective panel has the light-reflecting portion that matches with the arc surface of the arc post housing of described heat dissipation base; This light-reflecting portion mainly is made of the plate body array of truncated rectangular pyramids hull shape, and when reflection ray, the light that light-reflecting portion reflected forms the rectangle light beam and is projected on the road surface, has overcome the optically focused effect ubiquitous zebra-stripe defective of traditional LED street lamp because of the emission cover; Therefore, reflective panel of the present invention is not only abundant but also even to the reflection of light; In addition, the general outline of the light-reflecting portion of reflective panel is an arc surface, helps enlarging the field of illumination of street lamp.(2) among the present invention, comprise LED lamp pearl in the LED lamp pearl array, be convenient to carry out the design of secondary optics luminous intensity distribution, further satisfy the needs at special lighting scene with different light rays angle of departure.(3) among the present invention, each LED lamp pearl is arranged on the aluminium base of strip, and paste thin layer Heat Conduction Material (heat conductive silica gel or conductive graphite) is located between aluminium base and the arc post housing, can further improve heat conducting efficient.Simultaneously, each LED lamp pearl is located on the arc post housing by corresponding aluminium base, and is simple in structure, easy for installation.Each catch that insulate is located on the corresponding aluminium base, and protection and insulating effect are played in the conducting wire of this aluminium base.(4) among the present invention, the pedestal part of heat dissipation base and base portion be for dividing body structure up and down, thereby can adopt the method for casting respectively to obtain.For reaching heat-transfer effect preferably, the thin layer Heat Conduction Material (conductive graphite or heat conductive silica gel) of paste can be set between base portion and pedestal part, thereby can fill the tiny pit that is in contact with one another the position of the base portion and the pedestal part of heat dissipation base, and at heat that each LED lamp pearl generates after aluminium base conducts on the arc post housing accordingly, when conduction was given on the base portion of heat dissipation base again, heat conduction efficiency was higher; The groups of fins of the base portion of heat dissipation base then with natural environment in air carry out convection current, and dispel the heat to air; The heat-transfer effect of such scheme is better.(5) among the present invention, described LED power driving circuit is simple in structure, under the control of constant-current control circuit therein, with current constant mode each LED series circuit of LED lamp pearl array is powered.Wherein, the pulse signal of the constant current signal output output pulse width of constant-current control circuit modulation and control the size of the current strength of constant-current circuit, and according to the feedback signal of constant-current circuit and the dutycycle of the pulse signal of above-mentioned pulsewidth modulation is adjusted, current strength remains on a constant numerical value in the constant-current circuit and make, thereby makes the luminous work under constant current of LED series circuit.When (6) control circuit and constant-current control circuit are provided with the control signal corresponding receiving terminal when the LED power driving circuit is provided with, be suitable for controlling the size of current of the LED series circuit of flowing through in the different periods, that is to say, current strength at a certain period constant-current circuit is in a constant value, and in another period, the current strength that permanent sulphur is decided the road is in another constant numerical value, thereby can make LED lamp pearl array send the light of corresponding bright in the different periods; For example work in normal luminous duty in the first half of the night, then work in half bright duty after midnight, to reach energy-conservation effect.
Description of drawings
Fig. 1 is a kind of structural representation of high-power LED street lamp of the present invention; Translucent cover among the figure part of only drawing;
Fig. 2 is the rearview of Fig. 1;
Fig. 3 is the left view of Fig. 1;
Fig. 4 is the A-A cross section view of Fig. 1;
Fig. 5 is the partial enlarged drawing of the I portion among Fig. 4;
Fig. 6 is the partial enlarged drawing of the II portion among Fig. 4;
Fig. 7 is the schematic perspective view of reflective panel among Fig. 1;
Fig. 8 is a kind of circuit block diagram of LED power driving circuit of the present invention;
Fig. 9 is a kind of circuit theory diagrams of LED power driving circuit shown in Figure 8; LED lamp pearl series circuit in 5 LED lamp pearl series circuits that only draw parallel with one another in the drawings.
The specific embodiment
(embodiment 1)
See Fig. 1 to Fig. 5, Fig. 8 and Fig. 9, the high-power LED street lamp of present embodiment comprises: aluminum heat dissipation metal base 1, translucent cover 2, reflective panel 3, aluminium base 4, insulation catch 5, LED power driving circuit 6 and LED lamp pearl array 7.LED lamp pearl array 7 is made up of 5 row LED lamp pearls.Aluminium base 4 and insulation catch 5 are strip, and all have 5.
See Fig. 4, heat dissipation base 1 has arc post housing 12-1, and LED lamp pearl array 7 is located on the arc surface of this arc post housing 12-1.
See Fig. 7, Fig. 4 and Fig. 5, reflective panel 3 are one time punching molded aluminum metal decking behind the plating reflective membrane.Reflective panel 3 has the light-reflecting portion 3-1 that matches with the arc surface (this arc surface up among Fig. 4) of the arc post housing 12-1 of described heat dissipation base 1; This light-reflecting portion 3-1 mainly is made of the plate body array of truncated rectangular pyramids hull shape, and the central authorities of the plate body of each truncated rectangular pyramids hull shape are provided with lamp hole of bead 3-2; Each LED lamp pearl of LED lamp pearl array 7 is arranged in the lamp hole of bead 3-2 of plate body of a corresponding truncated rectangular pyramids hull shape of the light-reflecting portion 3-1 of reflective panel 3.
Each LED lamp pearl in the described LED lamp pearl array 7 is the large-power LED light bead of 1-100W, and LED lamp pearl can be adopted different light emission angles, and the scope at described light emission angle is the 0-50 degree, can be configured according to the needs at actual illumination scene.
See Fig. 4, Fig. 5, Fig. 8 and Fig. 9, the direction setting that each aluminium base 4 all parallels along the axis with arc post housing 12-1.Each row LED lamp pearl in described each LED lamp pearl array 7 is after being arranged on the corresponding aluminium base 4 earlier, to be contacted by the arc surface of aluminium base 4 with the arc post housing 12-1 of heat dissipation base 1 again; Be provided with the thin layer heat conductive silica gel of paste between each aluminium base 4 and the arc post housing 12-1, and the thickness of thin layer is as long as heat conductive silica gel fills up the tiny pit (generally its scope is not more than 2 millimeters) on the position of being in contact with one another of aluminium base 4 and arc post housing 12-1; Each aluminium base 4 all has the conducting wire that is arranged on its plate body outer surface (this outer surface of Fig. 4 up), each LED lamp pearl on each aluminium base 4 then is connected in the conducting wire of this aluminium base, thereby each section lead of this conducting wire and each LED lamp pearl of being connected between the respective wire constitute a corresponding LED lamp pearl series circuit 71~75; The positive terminal of each LED lamp pearl series circuit 71~75, just a section lead of the positive pole of first LED lamp pearl of connection of corresponding conducting wire is electrically connected with the anodal LED+ of the power output end of described LED power driving circuit 6, the negative pole end of each LED lamp pearl series circuit 71~75, one section lead of the negative pole of last LED lamp pearl of the connection of this conducting wire just is electrically connected with the negative pole LED-of the power output end of LED power driving circuit 6, thereby LED lamp pearl array 7 is made of 5 LED lamp pearl series circuits parallel with one another on circuit structure, and these five LED lamp pearl series circuits are a LED lamp pearl series circuit 71, the 2nd LED lamp pearl series circuit 72, the 3rd LED lamp pearl series circuit 73, the 4th LED lamp pearl series circuit 74 and the 5th LED lamp pearl series circuit 75.
Still see Fig. 5, the width of each catch 5 that insulate is greater than the width of aluminium base 4, and the catch 5 that respectively insulate is arranged on and covers on the corresponding aluminium base 4, and the catch 5 that respectively insulate be provided with the perforate that the illuminating part that makes described each LED lamp pearl stretches out with described each LED lamp pearl corresponding section; Each insulate catch 5 and corresponding aluminium base 4 are fixed on the arc post housing 12-1 by screw.
See Fig. 4, heat dissipation base 1 is divided into base portion 11 and pedestal part 12, and the base portion 11 and the pedestal part 12 of heat dissipation base 1 are aluminum casting.
The main body of the pedestal part 12 of heat dissipation base 1 is arc post housing 12-1, is provided with 5~15 stiffener 12-2 that are parallel to each other (present embodiment is 9, and every stiffener 12-2 is according to the above-below direction setting among Fig. 4) in arc post housing 12-1.Adopt the structure of stiffener can help the heat conduction, and can alleviate the weight of the pedestal part 12 of heat dissipation base 1, make simultaneously also very convenient, each stiffener 12-2 can with arc post housing 12-1 integral type casting simultaneously.
The groups of fins 11-2 that the base portion 11 of heat dissipation base 1 has annular groove base 11-1 and is arranged in parallel each other; The opening of the cannelure of annular groove base 11-1 makes progress among Fig. 4, and the opening between the adjacent fin of groups of fins 11-2 down.The surface that is in contact with one another of base portion 11 and arc post housing 12-1 is all passed through machined and is comparatively level and smooth, and the arc surface of arc post housing 12-1 also passes through machined and the surface is comparatively level and smooth.Between the surface that base portion 11 arc post housing 12-1 are in contact with one another, be provided with the thin layer conductive graphite of paste, and the thickness of thin layer is as long as conductive graphite fills up the lip-deep tiny pit (generally its scope is not more than 2 millimeters) that base portion 11 and arc post housing 12-1 are in contact with one another.
See Fig. 1, Fig. 3 and Fig. 4, translucent cover 2 is made by transparent organic glass.Translucent cover 2 is arranged on the base portion 11 of described heat dissipation base 1, and by direction shown in Figure 4, the annular lower end part of translucent cover 2 and is coated with the rubber blanket 22 of ring-type on the annular bottom of translucent cover 2 in the annular groove base 11-1 of base portion 11.
See Fig. 4 and Fig. 6, the high-power LED street lamp of present embodiment also has catch assembly 8.Every side of described translucent cover 2 both sides has two hasp groove 2-1.Catch assembly 8 has 4 groups, and every group of catch assembly 8 includes the connecting ring 82 of the fixture 81 that has butt hook 81-1, side's annular and have the hasp 83 of butt hook 83-1.The opening of the opening of the butt hook 81-1 of fixture 81 and the butt hook 83-1 of hasp 83 all is in clamped condition, butt hook being set and clamping purpose is that a side ring section that is arranged in butt hook of connecting ring 82 can be rotated at butt hook, so this opening also can leave the slit, as long as a side ring section that is positioned at wherein of connecting ring 82 is not deviate from.
Every group of catch assembly 8 that the position is set is corresponding with a corresponding hasp groove 2-1 of translucent cover 2, and the fixture 81 of each catch assembly 8 is fixed on by rivet on the outer end sidewall of annular groove base 11-1 of base portion 11 of heat dissipation base 1.Side ring section in the two relative side ring sections of connecting ring 82 is hinged among the butt hook 81-1 of fixture 81, and another side ring section in the two relative side ring sections of connecting ring 82 is hinged among the butt hook 83-1 of hasp 83.Hasp 83 also has button body 83-2 and the top hasp head 83-3 to button body 83-2 bending; During assembling, the hasp head 83-3 elasticity of each hasp 83 is fastened on the cell wall of a corresponding hasp groove 2-1 of translucent cover 2, thereby translucent cover 2 firmly is fastened on the base portion 11 of heat dissipation base 1.At this moment, the ring section that is hinged with hasp 83 of connecting ring 82 is arranged in the below (direction of Fig. 4) of the ring section that is hinged with fixture 81, and near the base portion 11 of heat dissipation base 1.In the time will removing the fastening of 8 pairs of translucent covers 2 of catch assembly, can rotate (the ring section that is hinged with fixture 81 with connecting ring 82 is rotating shaft) according to rotation direction shown in Figure 4 from inside to outside, be positioned at the outside of the ring section that is hinged with fixture 81 until the ring section that is hinged with hasp 83 of connecting ring 82, and the ring segment base that is hinged with hasp 83 of connecting ring 82 originally is arranged in the ring section that is hinged with fixture 81 when the position of same horizontal plane (direction of Fig. 4), because of the elasticity of having removed translucent cover 2 to top offset (direction among Fig. 4) of hasp 83 fastens.
See Fig. 8, described LED power driving circuit 6 comprises: current rectifying and wave filtering circuit 61, the time control circuit 62, constant-current control circuit 63 and constant-current circuit 64.
The power output end of current rectifying and wave filtering circuit 61 connects the power input of constant-current control circuit 63; The power output end of current rectifying and wave filtering circuit 61 also is the anodal LED+ of the power output end of LED power driving circuit 6, and is electrically connected with the positive terminal of each LED series circuit 71~75; The constant current input of constant-current circuit 64 is as the negative pole of the power output end of LED power driving circuit 6, and is electrically connected with the negative pole end of each LED series circuit 71~75; The constant current output head grounding of constant-current circuit 64; The control end of the constant current control signal output termination constant-current circuit 64 of constant-current control circuit 63; The feedback signal input of the feedback signal output termination constant-current control circuit 63 of constant-current circuit 64; The time control circuit 62 the control model signal input part of control signal output termination constant-current control circuit 63.
See Fig. 9, current rectifying and wave filtering circuit 61 comprises: rectification circuit DB1, fuse F1, pressure-sensitive capacitance T1, filter capacitor C1, C6.The power output end of rectification circuit DB1 is the power output end of described current rectifying and wave filtering circuit 61.
The time control circuit 62 comprise: model is the single-chip microcomputer IC2 of PIC2C580, triode Q5, resistance R 4, R5, R6, R9, optocoupler IC3 and capacitor C 10.The control signal output of null circuit 62 when the common junction of resistance R 4 and resistance R 5 is.
Constant-current control circuit 63 comprises: constant current control module IC1, resistance R 3, R1, capacitor C 8.1 pin of constant current control module IC1 is the power input of constant-current control circuit 63, an end that is connected with constant-current circuit 64 of resistance R 3 is the feedback signal input of constant-current control circuit 63, the other end of resistance R 3 is electrically connected with 2 pin of constant current control module IC1,4 pin of constant current control module IC1 are the pwm signal output, also are the constant current control signal output of constant-current control circuit 63 that 7 pin of constant current control module IC1 are the control model signal input part of constant-current control circuit 63.Constant-current circuit 64 comprises: metal-oxide-semiconductor Q1, resistance R 2, inductance L 2, capacitor C 9 and diode D6.The drain D utmost point of metal-oxide-semiconductor Q1 links to each other with an end of inductance L 2, and the other end of inductance L 2 is the constant current input of constant-current circuit 64, also is the negative pole LED-of the power output end of LED power driving circuit 6; The grid G of metal-oxide-semiconductor Q1 is the control end of constant-current circuit 64; The source S utmost point of metal-oxide-semiconductor Q1 is the feedback signal output of constant-current circuit 64, and the source S utmost point of metal-oxide-semiconductor Q1 also links to each other with an end of second resistance R 2, and this end of the other end ground connection of second resistance R 2 and second resistance R 2 also is the constant current output of constant-current circuit 64.
In the LED series circuit, the positive terminal of LED11 is the positive terminal of a LED series circuit 71, and the negative pole end of LED13 is the negative pole end of a LED series circuit 71.
Time control function is achieved as follows: single-chip microcomputer IC2 timing (can be set at morning) then, single-chip microcomputer IC2 control triode Q5 conducting, and make optocoupler IC3 conducting, the 7 pin input voltages of then constant current control module IC1 are low level, thereby the dutycycle of the pulse-width signal (pwm signal) of 4 pin of constant current control module IC1 output reduces, and make the current strength that flows through constant-current circuit 64 lower, thereby make LED series circuit half bright luminous.If in the normal luminous period, the input voltage of 7 pin of then constant current control module IC1 is a high level, and makes the current strength that flows through constant-current circuit 64 higher, thereby makes the LED series circuit normally luminous.

Claims (11)

1. a high-power LED street lamp comprises: heat dissipation metal base (1); It is characterized in that: also comprise reflective panel (3), LED lamp pearl array (7) and the LED power driving circuit (6) that links to each other with LED lamp pearl array (7); Described heat dissipation base (1) is fixed together formation by base portion (11) and pedestal part (12) by securing member; Base portion of heat dissipation base 1 (11) and pedestal part (12) are aluminum casting; The base portion (11) of heat dissipation base (1) has arranges the groups of fins (11-2) that is provided with; The main body of the pedestal part (12) of heat dissipation base (1) then is an arc post housing (12-1), is provided with 5~15 stiffeners that are parallel to each other (12-2) in arc post housing (12-1); LED lamp pearl array (7) is located on the arc surface of this arc post housing (12-1); Reflective panel (3) has the light-reflecting portion (3-1) that matches with the arc surface of the arc post housing (12-1) of described heat dissipation base (1); This light-reflecting portion (3-1) mainly is made of the plate body array of truncated rectangular pyramids hull shape, and the central authorities of the plate body of each truncated rectangular pyramids hull shape are provided with the lamp hole of bead (3-2); Each LED lamp pearl of LED lamp pearl array (7) is arranged in the lamp hole of bead (3-2) of plate body of a corresponding truncated rectangular pyramids hull shape of the light-reflecting portion (3-1) of reflective panel (3).
2. high-power LED street lamp according to claim 1 is characterized in that: comprise the LED lamp pearl with different light rays angle of departure in the described LED lamp pearl array (7).
3. high-power LED street lamp according to claim 1 is characterized in that: reflective panel (3) is an one time punching molded metal decking behind the plating reflective membrane.
4. according to the described high-power LED street lamp of one of claim 1 to 3, it is characterized in that: also comprise the strip aluminium base (4) that the direction that parallels along the axis with arc post housing (12-1) is provided with; LED lamp pearl array (7) is made of 2~10 row LED lamp pearls, the quantity of aluminium base (4) is identical with the line number of LED lamp pearl, and each strip aluminium base (4) is corresponding with the corresponding LED of the delegation lamp pearl in the described LED lamp pearl array (7), also is to be contacted by the arc surface of this aluminium base (4) with arc post housing (12-1) after each capable LED lamp pearl is arranged on the corresponding aluminium base (4) earlier again; Each aluminium base (4) all has the conducting wire that is positioned on its plate body outer surface, each LED lamp pearl on each aluminium base (4) is connected in the conducting wire of this aluminium base (4), thereby each section lead of this conducting wire and each LED lamp pearl of being connected between the respective wire constitute a corresponding LED lamp pearl series circuit; The positive terminal of each LED lamp pearl series circuit, just a section lead of the positive pole of first LED lamp pearl of connection of corresponding conducting wire is electrically connected with the positive pole (LED+) of the power output end of described LED power driving circuit (6), the negative pole end of each LED lamp pearl series circuit, just a section lead of the negative pole of last LED lamp pearl of connection of this conducting wire is electrically connected with the negative pole (LED-) of the power output end of LED power driving circuit (6), thereby LED lamp pearl array (7) is made of 2~10 LED lamp pearl series circuits parallel with one another on circuit structure.
5. high-power LED street lamp according to claim 4, it is characterized in that: also comprise the insulation catch (5) that covers the strip on each aluminium base (4) outer surface, be provided with the perforate that the illuminating part that makes described each LED lamp pearl stretches out with described each LED lamp pearl corresponding section at each insulation catch (5); Each catch that insulate (5) is fixed on the arc post housing (12-1) by screw with corresponding aluminium base (4).
6. high-power LED street lamp according to claim 5 is characterized in that: also comprise translucent cover (2); Translucent cover (2) is arranged on the base portion (11) of heat dissipation base (1).
7. high-power LED street lamp according to claim 6 is characterized in that: be provided with the thin layer heat conductive silica gel of paste or the thin layer conductive graphite of paste between each aluminium base (4) and the arc post housing (12-1); Be provided with the thin layer conductive graphite of paste or the thin layer heat conductive silica gel of paste between the base portion (11) of heat dissipation base (1) and the pedestal part (12).
8. high-power LED street lamp according to claim 6 is characterized in that: also comprise catch assembly (8); Every group of catch assembly (8) includes the connecting ring (82) of the fixture (81) that has butt hook (81-1), square annular and has the hasp (83) of butt hook (83-1), and the opening of the butt hook (83-1) of the opening of the butt hook (81-1) of fixture (81) and hasp (83) all is in clamped condition; Every side in the relative both sides of described translucent cover (2) all has 2 hasp grooves (2-1); Base portion (11) in heat dissipation base (1) also comprises annular groove base (11-1); The annular lower end part of translucent cover (2) is in the annular groove base (11-1) of base portion (11); The fixture (81) of each catch assembly (8) is fixed on the outer end sidewall of annular groove base (11-1) of base portion (11) of heat dissipation base (1); Side ring section in the two relative side ring sections of connecting ring (82) is hinged in the butt hook (81-1) of fixture (81), and another side ring section in the two relative side ring sections of connecting ring (82) is hinged in the butt hook (83-1) of hasp (83); Hasp (83) also has button body (83-2) and top to the crooked hasp head (83-3) of button body (83-2); During assembling, hasp head (83-3) elasticity of each hasp (83) is fastened on the cell wall of a corresponding hasp groove (2-1) of translucent cover (2), thereby translucent cover (2) firmly is fastened on the base portion (11) of heat dissipation base (1).
9. high-power LED street lamp according to claim 4 is characterized in that: described LED power driving circuit (6) comprising: current rectifying and wave filtering circuit (61), constant-current control circuit (63) and constant-current circuit (64); The power output end of current rectifying and wave filtering circuit (61) connects the power input of constant-current control circuit (63); The power output end of current rectifying and wave filtering circuit (61) also is the positive pole of the power output end of LED power driving circuit (6), and is electrically connected with the positive terminal of each LED series circuit; The constant current input of constant-current circuit (64) is as the negative pole of the power output end of LED power driving circuit (6), and is electrically connected the constant current output head grounding of constant-current circuit (64) with the negative pole end of each LED series circuit; The control end of the constant current control signal output termination constant-current circuit (64) of constant-current control circuit (63); The feedback signal input of the feedback signal output termination constant-current control circuit (63) of constant-current circuit (64).
10. high-power LED street lamp according to claim 9 is characterized in that: LED power driving circuit (6) is control circuit (62) when also comprising; Constant-current control circuit (63) also is provided with the control model signal input part; The time control circuit (62) the control model signal input part of control signal output termination constant-current control circuit (63).
11. high-power LED street lamp according to claim 10 is characterized in that:
The time control circuit (62) comprising: model is single-chip microcomputer (IC2), optocoupler (IC3) and the triode (Q5) of PIC2C580;
Constant-current control circuit (63) comprising: constant current control module (IC1), first resistance (R1), the 3rd resistance (R3) and the 8th electric capacity (C8); 1 pin of constant current control module (IC1) is the power input of constant-current control circuit (63), an end that is connected with constant-current circuit (64) of the 3rd resistance (R3) is the feedback signal input of constant-current control circuit (63), the other end of the 3rd resistance (R3) is electrically connected with 2 pin of constant current control module (IC1), 4 pin of constant current control module (IC1) are the pwm signal output, also are the constant current control signal output of constant-current control circuit (63) that 7 pin of constant current control module (IC1) are the control model signal input part of constant-current control circuit (63);
Constant-current circuit (64) comprising: metal-oxide-semiconductor (Q1), second resistance (R2), inductance (L2), electric capacity (C9) and diode (D6); The drain electrode of metal-oxide-semiconductor (Q1) links to each other with an end of inductance (L2), and the other end of inductance (L2) is the constant current input of constant-current circuit (64), also is the negative pole (LED-) of the power output end of LED power driving circuit (6); The grid G of metal-oxide-semiconductor (Q1) is the control end of constant-current circuit (64); The source S utmost point of metal-oxide-semiconductor (Q1) is the feedback signal output of constant-current circuit (64), the source S utmost point of metal-oxide-semiconductor (Q1) also links to each other with an end of second resistance (R2), and this end of the other end ground connection of second resistance (R2) and second resistance (R2) also is the constant current output of constant-current circuit (64);
Single-chip microcomputer (IC2) timing then, the conducting of single-chip microcomputer (IC2) control triode (Q5), and make optocoupler (IC3) conducting, 7 pin input voltages of then constant current control module (IC1) are low level, thereby the dutycycle of the pulse-width signal of 4 pin of constant current control module (IC1) output reduces, and make the current strength that flows through constant-current circuit (64) lower, thereby make LED series circuit half bright luminous; If in the normal luminous period, the input voltage of 7 pin of then constant current control module (IC1) is a high level, and makes the current strength that flows through constant-current circuit (64) higher, thereby makes the LED series circuit normally luminous.
CN2008100251606A 2008-04-24 2008-04-24 High-power LED road lamp Expired - Fee Related CN101280897B (en)

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CN101936465B (en) * 2009-07-01 2013-07-03 富准精密工业(深圳)有限公司 Light-emitting diode lamp
CN102095172A (en) * 2009-12-15 2011-06-15 富士迈半导体精密工业(上海)有限公司 Light emitting diode lamp
CN102128386B (en) * 2010-12-03 2012-10-10 东莞勤上光电股份有限公司 Led street lamp
CN102042544A (en) * 2010-12-29 2011-05-04 张连生 Honeycomb LED (Light Emitting Diode) energy-saving lamp
CN102175003A (en) * 2011-03-21 2011-09-07 萨威灯具设计制造(苏州)有限公司 Easily radiated and high-power LED street lamp cap
CN102287700A (en) * 2011-07-26 2011-12-21 苏州晶雷光电照明科技有限公司 Integrated modularized light-emitting diode (LED) street lamp
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CN102537789B (en) * 2012-01-13 2013-12-18 王成华 Led lamp
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Assignee: Beijing SIAT & JEGO Optoelectronics Technology Co., Ltd.

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