Outdoor LED street lampTechnical field
The invention belongs to field of lighting devices, specifically discloses a kind of outdoor LED street lamp.
Background technology
At present, the outdoor road lamp light fixture overwhelming majority is conventional high-tension sodium vapor lamp or Metal halogen lamp, but its service life and energy consumptionAll less desirable, now, for the idea of development of response national energy-saving emission reduction low-carbon green environmental protection, we gradually begin to useThis light of LED street lamp, it has long lifespan low power consumption and other advantages, will progressively substitute traditional LED lamp.However, againThere is the problem of new to occur, many countries such as Europe, because conventional lamp is transformed, the light fixture and no ground electricity installed before someThe special circumstances such as line, it is desirable to the LED lamp used has Class II safety standard requirements, but existing metal shellLED lamp is difficult to meet this particular/special requirement, therefore can only typically accomplish Class I safety standard.
It is known that general LED lamp is mainly made up of three parts such as radiator, light source and LED drivers；Aluminium conductA kind of conventional metal material, there is high-termal conductivity and very high cost performance to be widely used in the main heat sink of LED lampOn, but aluminum metal also good conductive carrier, therefore existing outdoor LED street lamp is difficult the peace for meeting Class IIFull code requirement.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide one kind on the premise of light fixture has metal shell,Equally there is good heat dispersion, moreover it is possible to meet the outdoor LED street lamp of Class II safety requirements.
The technical solution adopted by the present invention is：A kind of outdoor LED street lamp, the street lamp includes heat radiating metal shell, LED drivesDynamic device, heat radiation module and LED light source, heat radiation module are fixed in heat radiating metal shell, it is characterised in that the LED driverUsing the power supplys of Class II, the input of the power supplys of Class II electrically connects with 220V cities, and the output end of the power supplys of Class II is LEDLight source power supply, and the output end of the power supplys of Class II is safe voltage.
The LED light source is fixedly connected with heat radiation module, and the output end of the power supplys of Class II is connected with heat radiation module, is madeIn the case of normal and improper, the position of all metal connections is all within the scope of safe voltage.
The heat radiating metal shell includes afterbody shell, middle housing and the drive end bearing bracket being sequentially connected, and LED driver is fixedIn afterbody shell, heat radiation module and LED light source are fixed in middle housing.
The afterbody shell is detachably connected with middle housing, and middle housing is detachably connected with drive end bearing bracket.
The middle housing have be arranged side by side it is multiple, be correspondingly fixed with each middle housing a heat radiation module andLED light source, adjacent middle housing are detachably connected.
The middle housing includes middle part protecgulum and middle part back cover, and the rear side that middle part back cover is fixed on middle part protecgulum forms appearanceReceive the cavity of heat radiation module and LED light source, the front and rear sides of middle part protecgulum have a side plate, bolt through side plate connection it is adjacent inPortion's protecgulum, is respectively equipped with positioning convex and detent on the side plate of both sides, and adjacent middle part protecgulum passes through positioning convex and fixedPosition groove is positioned.
The afterbody shell includes hood and tail-hood, and hood is fixed on rear side of tail-hood by hood connector, hood and tailThe cavity for accommodating LED driver is formed between lid, the fall prevention rope for preventing hood from dropping is also associated between hood and tail-hood.
The rear and front end of the heat radiating metal shell offers air vent, and the rear side of heat radiation module is provided with two groups of radiating finsPiece, the ventilating duct of connection heat radiating metal shell both ends air vent is formed between two groups of radiating fins.
Power input terminal box is further fixed in the heat radiating metal shell, LED driver one end passes through power input linePower input terminal box is connected, the LED driver other end connects heat radiation module, power input line and power supply by power supply output lineOutput line is fixedly connected by power line connection fixture with heat radiating metal shell respectively.
The power input line and power supply output line are double insulation line.
Beneficial effects of the present invention are as follows：
LED driver provided by the invention uses the power supplys of Class II, and the output end of the power supplys of Class II is safe voltage,Solve the technical barrier that metal shell crosses Class II degree of protection, can directly replace class's II required for conventional lampLight fixture requirement, operated without more bulb changing pole, without cloth ground wire etc. again, project inputs cost can be significantly reduced, it is equally validReduce the set-up time of engineering.
Brief description of the drawings
Fig. 1 is the exploded perspective view of outdoor LED street lamp of the present invention.
Fig. 2 is the structural representation of hood connector.
The close-up schematic view that A goes out in Fig. 3.
Fig. 4 is the rearview of outdoor LED street lamp of the present invention.
Fig. 5 is the structural representation of the present embodiment 2.
Wherein, 1, hood 2, hood connector 201, buckle body 202, turning arm 203, kink 3, radiating mouldGroup 301, ventilating duct 4, middle part back cover 5, drive end bearing bracket 6, middle part protecgulum 601, side plate 602, positioning convex 603, positioning are recessedGroove 7, LED light source 8, tail-hood 9, LED driver 10, air vent 11, fall prevention rope 12, power input terminal box 13, power supplyInput line 14, power supply output line 15, power line connection fixture.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in detail.
Embodiment 1
Referring to Fig. 1, a kind of outdoor LED street lamp of the embodiment of the present invention, the street lamp includes heat radiating metal shell, LED drivesDynamic device 9, heat radiation module 3 and LED light source 7, LED driver 9 and heat radiation module 3 are fixed in heat radiating metal shell, LED driver9 use the power supplys of Class II, and the input of the power supplys of Class II electrically connects with 220V cities, and the output end of the power supplys of Class II isLED light source 7 is powered, and the output end of the power supplys of Class II is safe voltage.Solve metal shell and cross Class II protection etc.The technical barrier of level, the light fixture requirement of the class II required for conventional lamp can be directly replaced, without more bulb changing pole, without againCloth ground wire etc. operates, and can be significantly reduced project inputs cost, the equally valid set-up time for reducing engineering.In the applicationThe power supplys of Class II refer to that the power supply used in II class light fixture (may refer to GB 7000.1--2007 (IEC60598-1-2008)Light fixture Generally Recognized as safe is with requiring), the power supplys of Class II are exactly the power supply for meeting the requirement of the safe classes of Class II, and the anti-of product touchesElectric protection does not only rely on basic insulation, but also including additional safety measure, such as double insulation or reinforced insulation, but do not haveGround connection or the safeguard measure for relying on mounting condition, the power supplys of Class II are two-pin plug, bright big LPF-16 systems in existing productRow, LPF-25 series, LPF-40 are serial and the LED switch power supply of LPF-60 series can serve as the power supplys of Class II, may be used alsoWith the power supplys of independent design Class II, Class I refers to that the electrocution-proof protection of product does not only rely on basic insulation, but also includingEarthing mode, the power supplys of Class I are three pin plugs.Safe voltage refers to that voltage that is directly lethal or disabling, this Shen will not be made onePlease preferably use SELV voltages, i.e. SELV 36V.The course of work is that civil power 200Vac is accessed in LED driver 9,The constant current that the power supplys of Class II are converted to civil power SELV voltages is conveyed to LED light source 7.
In the present embodiment, heat radiating metal shell includes afterbody shell, middle housing and the drive end bearing bracket 5, LED being sequentially connectedDriver 9 is fixed in afterbody shell, and heat radiation module 3 and LED light source 7 are fixed in middle housing.Outside afterbody shell and middle partShell is detachably connected, and middle housing is detachably connected with drive end bearing bracket 5, can thus realize modularized production, can be installed notWith the heat radiation module 3 and LED light source 7 of model.Middle housing includes middle part protecgulum 6 and middle part back cover 4, and middle part back cover 4 is fixed onThe rear side of middle part protecgulum 6 forms the cavity for accommodating heat radiation module 3 and LED light source 7, and the rear and front end of heat radiating metal shell opens upThere is an air vent 10, the access port as civil power simultaneously of the air vent 10 on afterbody shell.The rear side of heat radiation module 3 dissipates provided with two groupsHot fin, the ventilating duct 301 of connection heat radiating metal shell both ends air vent 10 is formed between two groups of radiating fins, it is logical to ensureWind is smooth, improves cooling effectiveness, improves the service life of LED light source 7.Heat emission hole is also offered on middle part back cover 4.
Afterbody shell includes hood 1 and tail-hood 8, and hood 1 is fixed on the rear side of tail-hood 8 by hood connector 2, hood 1 withThe cavity for accommodating LED driver 9 is formed between tail-hood 8.
Reference picture 2, specifically, hood connector 2 includes buckle body 201 and turning arm 202, turning arm 202 is rectangleMount structure, the side of turning arm 202 are connected by stator with hood 1, and opposite side is rotatablely connected with the upper end of buckle body 201, cardDetain body 201 lower end have with tail-hood 8 fasten kink 203, after tail-hood 8 docks with hood 1, kink 203 first withThe clamping of tail-hood 8, the upper end of buckle body 201 is then promoted to internal rotation so that turning arm 202 turns over clamping dead point by tail-hood 8It is fixed together with hood 1, it is simple in construction, it is easy to connect.
Further, middle housing, which has, is arranged side by side multiple, and a radiating mould is correspondingly fixed with each middle housingGroup 3 and LED light source 7, adjacent middle housing are detachably connected, and can install the heat radiation module 3 and LED of varying number as neededLight source 7, so as to adapt to the demand of different places.Specifically, the middle housing in the present embodiment has two, it is corresponding to be provided with twoIndividual heat radiation module 3 and two LED light sources 7.
Reference picture 3, the front and rear sides of middle part protecgulum 6 have side plate 601, and bolt connects adjacent middle part through side plate 601Protecgulum 6, positioning convex 602 and detent 603 is respectively equipped with the side plate 601 of both sides, adjacent middle part protecgulum 6 passes through positioningProjection 602 and detent 603 are positioned.
LED light source 7 is fixedly connected with heat radiation module 3, and the output end of the power supplys of Class II is connected with heat radiation module 3, utilizes goldThe heat radiation module 3 of category is conductive so as to be powered for LED light source 7, it is not necessary to extra conductive component, simple in construction, reliable operation.
Reference picture 4, is also associated with the fall prevention rope 11 for preventing hood 1 from dropping between hood 1 and tail-hood 8, fall prevention rope 11 can be withPrevent the connection of hood 1 from being dropped after loosening, it is safe and reliable.Power input terminal box 12 is further fixed in heat radiating metal shell,The one end of LED driver 9 connects power input terminal box 12 by power input line 13, and the other end of LED driver 9 is defeated by power supplyOutlet 14 connects heat radiation module 3, and power input line 13 and power supply output line 14 are respectively by power line connection fixture 15 with dissipatingThermometal shell is fixedly connected.Power input line 13 and power supply output line 14 are double insulation line.
Embodiment 2
Reference picture 5, the difference of the present embodiment and embodiment 1 has four in the middle housing in the present embodiment, correspondingFour heat radiation modules 3 and four LED light sources 7 are installed, certainly, the quantity of middle housing can be selected arbitrarily as needed.
Embodiment 3
The present embodiment and the difference of embodiment 1 are：The present embodiment also includes plastic casing, i.e., shell by heat radiating metal outsideShell and plastic casing composition, heat radiation module 3 is fixed in heat radiating metal shell, using heat radiating metal shell by heat radiation module 3Simultaneously Quick diffusing into surrounding air, ensure that radiating effect to heat absorption, and LED driver 9 is then fixed in plastic casing.Other structures are the same as embodiment 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present inventionAll any modification, equivalent and improvement made within refreshing and principle etc., should be included in the scope of the protection.