A kind of LED street lamp
Technical field
The present invention relates to the street lamp technical field, particularly a kind of LED street lamp.
Background technology
Under the background that the worry of current global energy shortage raises once again; Energy savings is the important problem that we shall face future; Just attracting common people's sight in the application of lighting field LED luminous product; LED (Light Emitting Diode) is the english abbreviation of light emitting diode, is a kind of solid-state semiconductor devices, and it can directly be converted into light to electric energy.LED has numerous advantages such as light efficiency height, long service life, energy-saving and environmental protection, more and more widely be applied to various fields, particularly be applied to street lamp.
The normal high-pressure mercury lamp that uses of Traditional Road illumination, it is big that it exists energy consumption, short two big fatal shortcomings of life-span, increasingly mature along with the LED manufacturing technology, the LED street lighting can overcome the shortcoming of high-pressure mercury lamp, has the distinguishing feature that energy consumption is low, the life-span is long.There is heat dissipation problem mostly in existing high-power LED street lamp, and the quality of heat-sinking capability directly influences the working life and the reliability of high-power LED street lamp.The existing main radiating mode of high-power LED street lamp is the heat radiation type heat radiation; The heat that produces during high-power LED street lamp directly passes on the fin; Pass through convection type; Carry out heat exchange with air and come out heat, the major defect of this radiating mode is that the area of dissipation of fin is big inadequately, radiating efficiency is low, and convection current is bad between fin and the air.
The placement position of LED road lamp power supply also can influence the working life and the reliability of street lamp in addition, and the placement position of LED road lamp power supply is a kind of to be to be positioned over the lamp housing surface, and a kind of in addition is to use aluminium alloy post.First kind of laying method be the bearing weight and can increase of lamp housing on the one hand, causes hidden danger; Cause the lamp housing temperature increase on the other hand, the LED divergence is very big originally, if the heat that power supply produces is transmitted on the lamp housing, can cause led chip heat heat radiation difficulty, influences LED service life.Second method, with the aluminium alloy post collocation, radiating effect has improvement, but requisite space increases, and installation is caused certain difficulty.
Summary of the invention
The purpose of this invention is to provide a kind of LED street lamp, radiating efficiency is high, improves the working life and the reliability of high-power LED street lamp greatly.
Further purpose is the heat that insulating power supply produces, and saves installing space, makes that the LED street lamp is safe and reliable, longer service life.
The present invention realizes through following technical scheme:
A kind of LED street lamp comprises main casing, street lamp panel, led light source, radiator and power supply and control circuit thereof, and main casing and street lamp panel constitute the lamp chamber; The street lamp panel is provided with lamp hole, and led light source is arranged on the lamp hole of street lamp panel, it is characterized in that: said main casing top is provided with an opening; On opening, be provided with unpowered rotating wind wheel, on the street lamp panel, be distributed with air inlet, power supply is fixed on the street lamp panel through a support; Radiator is fixed on the street lamp panel; Each radiator constitutes by heat sink and the radiating fin that is evenly arranged on the heat sink, is formed with chase between adjacent two fins, and led light source is installed on the heat sink.
Said wind wheel is made up of fan blade, the circular seat of honour and circular following, and fan blade is curved, and fan blade uniformly-spaced is installed between following of the circular seat of honour and the circle, forms spherically, and wind wheel is installed on the opening on main casing top through an installed part.
Said support comprises lamp stand tube connector, the first power supply supporting plate, second source supporting plate, tube connector gland and strengthens gusset; Be provided with planar section in lamp stand tube connector one end; The first power supply supporting plate is positioned on this planar section and with this planar section and is fixedly connected, and the second source supporting plate is fixedly connected with the first power supply supporting plate, and the second source supporting plate is fixedly connected with the lamp stand tube connector; The LED road lamp power supply is installed on the first power supply supporting plate; The second source supporting plate is provided with two and place about lamp stand tube connector symmetry, and an end of each piece second source supporting plate is connected with the first power supply supporting plate electric welding, and the other end is connected with the electric welding of lamp stand tube connector; The reinforcement gusset is provided with circular arc and the lamp stand tube connector is connected and electric welding is fixed; The tube connector gland is connected with the electric welding of lamp stand tube connector, and support is fixed on the street lamp panel, and the lamp stand tube connector stretches out the lamp chamber and is fixed on the lamp stand.
The center line and the vertical direction of the opening on said main casing top are provided with angle; The end that standoff main casing wherein is installed constitutes cap part; The other end constitutes the lamp end section; The opening on main casing top is positioned at the lamp end section, and the cap part of main casing is provided with the angle of inclination, on the sidewall of lamp end section, is provided with the air port.
The present invention compared with prior art has the following advantages:
1) because a unpowered rotating wind wheel is installed on the opening on main casing top; Unpowered rotating wind wheel can along with the temperature difference in the street lamp chamber and draught head or extraneous wind rotates, and wind is by the air inlet air intake, by unpowered rotating wind wheel air-out; Form the process of a free convection like this; Fin in the street lamp lamp chamber dispels the heat through the free convection of air, and the radiating efficiency height is effective, and radiating mode is easy.
2) because the air inlet on the street lamp communicates with unpowered rotating wind wheel, the angle of inclination of road lamp cap is in case rainwater is from the unpowered rotating wind wheel entering of lamp afterbody; The lower that rainwater can flow to the lamp holder air inlet along the chase of fin flows out, and flows to ground along lamp stand again, and this structure also has another advantage; It is good water-proof effect; Rational in infrastructure simple, be not afraid of rainwater, and rainwater flows to the effect of also playing a heat radiation in the lamp chamber.
3) the LED road lamp power supply is also in lamp housing; The entire heat dissipation structure also gives power supply heat sinking not only for led light source heat radiation itself simultaneously; So solve the heat radiation difficult problem of high-power LED street lamp, prolong the life-span of LED lamp, reduce the disturbing factor of LED power supply simultaneously led light source.
4) because support comprises lamp stand tube connector, the first power supply supporting plate, second source supporting plate, tube connector gland and reinforcement gusset; When therefore power supply is positioned on the lamp stand tube connector, alleviated the weight of bearing of drain pan, the heat that insulating power supply produces; And fixed power source; Practiced thrift installing space, and these 4 comprehensive functions of heat, fixed power source and saving installing space that weight, insulating power supply produces of bearing that alleviate drain pan reach simultaneously, and former support can not reach simultaneously.
Description of drawings
Fig. 1 is the stereogram () after the LED street lamp assembling of the present invention;
Fig. 2 is the stereogram (two) after the LED street lamp assembling of the present invention;
Fig. 3 is the radiator structure sketch map of LED street lamp of the present invention;
Fig. 4 is the supporting structure sketch map that power supply is installed of LED street lamp of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing LED street lamp embodiment of the present invention is described further.
Shown in Fig. 1-3, LED street lamp of the present invention comprises main casing 1, street lamp panel 2, led light source 3, radiator 7 and power supply 5 and control circuit thereof; Main casing 1 constitutes the lamp chamber with street lamp panel 2, and street lamp panel 2 is provided with lamp hole, and led light source 3 is arranged on the lamp hole of street lamp panel 2; Be provided with an opening on main casing 1 top, on opening, be provided with unpowered rotating wind wheel 4, on street lamp panel 2, be distributed with air inlet 21; Power supply 5 is fixed on the street lamp panel 2 through a support 6; Radiator 7 is fixed on the street lamp panel 2, radiator 7 corresponding led light sources 3, and each radiator 7 constitutes by heat sink 71 and the radiating fin 72 that is evenly arranged on the heat sink; Be formed with chase 73 between adjacent two fins, led light source 3 is installed on the heat sink 71.Wind wheel 4 is made up of fan blade 41, the circular seat of honour 42 and circular following 43, and fan blade is curved, and fan blade 41 uniformly-spaced is installed between following 43 of the circular seat of honour 42 and the circle, forms spherically, and wind wheel 4 is installed on the opening on main casing 1 top through an installed part 8.The center line and the vertical direction of the opening on main casing 1 top are provided with angle; The end that the main casing of support 6 wherein is installed constitutes cap part 11, and the other end constitutes lamp end section 12, and the opening on main casing top is positioned at lamp end section 12; The cap part 11 of main casing 1 is provided with the angle of inclination; That is to say, asymmetric from laterally seeing cap part 11 and lamp end section 12, on the sidewall of lamp end section 12, be provided with air port 13; But see cap part 11, lamp end section 12 equal left-right symmetric along support 6 directions from vertically seeing promptly.
Like Fig. 4; Support 6 comprises lamp stand tube connector 61, the first power supply supporting plate 62, second source supporting plate 63, tube connector gland 64 and strengthens gusset 65 that be provided with planar section in an end of lamp stand tube connector 61, the first power supply supporting plate 62 is positioned on this planar section and with this planar section and is fixedly connected; Second source supporting plate 63 is fixedly connected with the first power supply supporting plate 61; Second source supporting plate 63 is fixedly connected with lamp stand tube connector 61, and power supply 5 is installed on the first power supply supporting plate 62, and the planar section of an end of lamp stand tube connector 61 is a rectangle; Length is greater than 80mm, and width is greater than 35mm.Reinforcement gusset 65 is provided with circular arc and lamp stand tube connector 61 is connected and electric welding is fixed, and tube connector gland 64 is connected with 61 electric welding of lamp stand tube connector.With an end of lamp stand tube connector 61 be provided with planar section relative an end stretch out the shell of LED street lamp, be provided with the connection screw at this end, be used for the whole LED street lamp is fixed on the vertical rod or the cross bar in roadside.Wherein second source supporting plate 63 is provided with two and place about lamp stand tube connector 61 symmetry, and an end of each piece second source supporting plate is connected with 62 electric welding of the first power supply supporting plate, and the other end is connected with 61 electric welding of lamp stand tube connector, the gesture of formation triangle.Lamp stand tube connector 61 is an iron pipe, and tube connector gland 64 is the arc iron block, and strengthening gusset 65 is that irony plate, the first power supply supporting plate 62 are the irony supporting plate, and second source supporting plate 63 is aluminium alloy supporting plate or irony supporting plate.The whole LED street lamp is fixed in the vertical rod or cross bar in roadside through lamp stand tube connector 61.