CN207778238U - A kind of street lamp based on combined reflecting surface - Google Patents

Abstract

The utility model discloses a kind of street lamp based on combined reflecting surface, including lamp cap, lamp stand and control cabinet, the lamp cap includes lamp holder and the composite surface reflector by being installed on successively except interior on the lamp holder, LED lamp panel and lens, the composite surface reflector is made of the plane mirror of several different directions, the light of the LED lamp panel is all radiated objective plane by all plane mirrors, and all hot spots for being radiated target face formation are completely superposed with target face position, the LED lamp panel is equipped with the LED light of several array arrangements that are square, the lens are in the asymmetrical rectangle in transverse and longitudinal direction.The street lamp has very strong flexibility, is suitable for different kinds of roads road conditions.Part can either be avoided lighting dead angle occur, reduce blind area；Also it is avoided that light projection to certain regions for not needing illumination, reduces the inessential area of illumination to the greatest extent, improves energy utilization rate, realize environmental protection and energy saving.

Description

A kind of street lamp based on combined reflecting surface

Technical field

The utility model is related to fitting structure field more particularly to a kind of street lamps based on combined reflecting surface.

Background technology

Road is divided into urban road, highway, factories and mines road, forest road and backroad etc., China by its handling characteristics About 30% electricity is used for street lighting, and about 43,900,000,000 kWh of electricity consumption is calculated with 0.7 yuan/kWh of average electricity price, pays wages within 1 year 30700000000 yuan, and the illumination efficiency only 76% or so of common street lamp, that there are illumination blind areas is more for conventional road lamp, is also easy to produce illumination overlaps The disadvantage of area, the inessential area of illumination and glare area etc. provides a kind of low energy if a kind of high-effective concentration pattern can be converted to Consumption, low cost, high-effective concentration, searchlighting ability is high, flexibility is strong, the street lamp of environmental protection, significant for the project of green energy conservation.

Traditional street lamp is frequently with high-pressure sodium lamp, and the low disadvantage of light efficiency causes the huge wave of the energy to high-pressure sodium lamp on the whole Take.In today that municipal expenditure puts upon the full stretch, most of the country city and area are coincidentally existed using Japan and other countries The economical method that the street lamp just abandoned the seventies is turned off the light every small cup, wherein the drawbacks of it is self-evident --- do not only result in road surface Illuminance is unevenly distributed, and has buried hidden danger to public security and traffic safety, and be not avoided that the raising pair of network voltage after midnight The detraction in street lamp service life, therefore truly energy saving cannot be referred to as.

Utility model content

The shortcomings that in order to overcome the prior art to refer to, the utility model provide a kind of street lamp based on combined reflecting surface.

The utility model solve technical solution that its technical problem uses for：A kind of street lamp based on combined reflecting surface, packet Include lamp cap, lamp stand and control cabinet, the lamp cap includes lamp holder and the composite surface by being installed on successively except interior on the lamp holder Reflector, LED lamp plates and lens, the composite surface reflector are made of the plane mirror of several different directions, are owned The light of the LED lamp panel is all radiated objective plane by the plane mirror, and all target faces that are radiated are formed Hot spot be completely superposed with target face position, the LED lamp panel be equipped with it is several be square arrays arrangement LED lamps, it is described Mirror is in the asymmetrical rectangle in transverse and longitudinal direction.

The composite surface reflector, internal structure are made of the plane of numerous different directions, by table in reflective mirror Face variation is that the light that multiple slight flats make each slight flat of reflective mirror reflect all is radiated objective plane, and owns The hot spot and target face position for being radiated target face are completely superposed, and uniform light distribution is obtained in target face.When light shines When penetrating in the above, it can be reflected by each slight flat, finally reflect light beam.Composite surface reflector can be fine Ground solves the problems, such as non-rotational symmetry system and expansion light source so that light converges, and reaches spotlight effect.

The planform of the composite surface reflector is to obtain parameter with it to simulate road conditions with optical software by ASAP Different reflectings surface is designed to be formed by.

The layout of the LED light is to follow energy-saving and environment-friendly principle, utilizes the light emitting diode that the environmentally protective service life is high (LED light), the design of LED street lamp use the lens of the asymmetrical rectangle light distribution in transverse and longitudinal direction, can directly exist by light distribution Rectangular light spot is realized on single led optical element.The utility model devises a kind of novel LED street lamp lens, with plane The method of arrangement makes it that can realize up to 0.735 uniformity of illuminance.Simultaneously by calculating its power, using " high-power lamp is few The mode of number, small light majority ", to reach the lighting requirements needed for road surface, to realize that meeting road surface with minimum light source shines Brightness is penetrated, reduces glare area and blind area, and then reduce cost, energy conservation and environmental protection.

The ASAP matches the reasonable application of optical software, i.e., fortune uses it to simulation road conditions and show that parameter designing goes out different reflections Face makes street lamp be suitable for the various road surfaces of different road conditions so as to which light crevice projection angle and direction is adjusted flexibly.Due to light It is straight line irradiation, the shape finally irradiated of street lamp in living now is sector, there are lighting dead angle between lamp and lamp, therefore institute It states street lamp and simulates different road conditions by matching optical software and obtain series of parameters, different reflectings surface are designed, so as to adjust illumination Range and brightness obtain enough illuminance to meet road lighting, reduce the dazzle generated to drivers and pedestrians.So as to It avoids part from lighting dead angle occur, reduces blind area；Also it is avoided that light projection to certain regions for not needing illumination, reduces to the greatest extent The inessential area of illumination, it is energy saving to realize with this, energy utilization rate is improved, and make street lamp that there is very strong flexibility.

The utility model has the beneficial effects that：The street lamp has very strong flexibility, is suitable for different kinds of roads road conditions.It can It enough avoids part from lighting dead angle occur, reduces blind area；Also it is avoided that light projection to certain regions for not needing illumination, subtracts as possible Few inessential area of illumination, improves energy utilization rate, realizes environmental protection and energy saving.

Description of the drawings

Fig. 1 is the street lamp overall construction drawing of the utility model；

Fig. 2 is the lamp cap and lamp pole connecting structure figure of the utility model；

Fig. 3 is the plane mirror schematic shapes of the utility model；

Fig. 4 is the composite surface reflector internal structure chart of the utility model；

Fig. 5 is the LED street lamp lens transverse and longitudinal sectional view of the utility model；

Fig. 6 is the Street Light Illumination area schematic of the utility model.

Specific implementation mode

The utility model is further detailed below in conjunction with the accompanying drawings.Wherein, A is denoted as plane of refraction, B marks at Fig. 5 It is shown as cylindrical surface, C is denoted as reflecting surface, and D is denoted as outer surface, and E is denoted as inner surface, and F is denoted as ray-collecting.

As shown in Figures 1 to 6, a kind of street lamp based on combined reflecting surface, including lamp cap 1, lamp stand 2 and control cabinet, it is described Lamp cap 1 includes lamp holder and composite surface reflector, LED lamp panel and lens by being installed on successively except interior on the lamp holder, institute It states composite surface reflector to be made of the plane mirror of several different directions, all plane mirrors are by the LED The light of lamp plate is all radiated objective plane, and all hot spots for being radiated target face formation and target face position are completely heavy It closes, the LED lamp plates are equipped with the LED light of several array arrangements that are square, and the lens are asymmetrical rectangular in transverse and longitudinal direction Shape.

The design and operation principle of the lamp cap internal combination curved surface reflector are as follows：Composite surface in the design is anti- Emitter is made of a variety of plane mirrors, and the shape of speculum has a variety of irregular shapes as shown in Figure 3, to realize the roads LED Hot spot of the light irradiation on road is approximate rectangular, and avoid causing light loss and waste, and the design is a kind of asymmetric freely bent The Novel LED street lamp light-distribution lens in face, composite surface reflector general internal structure is as shown in figure 4, include reflecting surface and refraction Face, light are finally projected to road surface through reflection with refraction.The lens realize equally distributed light distribution in ± 60 ° in longitudinal direction, Equally distributed light distribution in ± 30 ° is realized in horizontal direction.The angle of known Cree LED light sources is 90 °, then the longitudinal direction of lens Direction radian will play the role of astigmatism, laterally play optically focused.The emergent light of white LED light source passes through lens respectively After the refraction of first face and the second face free form surface, the Uniform Illumination of distributed rectangular is formed on specific road surface.As long as therefore A light source is given, just can pass through the reflection and refraction of composite surface reflector so that uniform light is distributed to road surface, avoids energy Source wastes.

The Rational Arrangement of the LED light is also most important, and since LED light itself has, energy conversion efficiency is high, long lifespan, A variety of advantages such as small, pollution-free, directional performance is strong, and shock resistance is strong, therefore be the important selection on design of road lamp.Due to The light-distribution lens of composite surface reflector use the lens of the asymmetrical rectangle light distribution in transverse and longitudinal direction, can be direct by light distribution Realize rectangular light spot on single led optical element, therefore the method that the design uses flat rectangular matrix arrangement to LED light. The advantages of this method is：(1) LED module with rectangle light distribution need to be only arranged in one piece of heat dissipation tablet by the manufacture of LED street lamp On；(2) LED street lamp is very convenient in structure design, heat dissipation and power supply installation；(3) LED street lamp of different capacity only needs to increase Add or remove corresponding LED module.Under the action of light-distribution lens, it can be realized up to by way of planar alignment 0.735 uniformity of illuminance.Under the premise of herein, by changing the common ratio of LED lamps, the brightness of lamp is adjusted, according to the lattice of road Office, designs relevant luminance factor, calculates the brightness range for making us feeling most comfortable.It is appropriate using " high-power lamp is a small number of " again Or the mode of " small light is most ", to realize that every lamp all controls certain range of exposures.Control shines according to demand The number of lamp rationally utilizes the resource of LED light, not only can avoid excessive lamp waste of resource in this way, but also can avoid very few lamp and lead It causes road excessively to illuminate deficiency, leads to traffic accident.

Simulations of the ASAP with optical software is so work：As shown in fig. 6, right in optical design software ASAP Free-form surface lens carry out optical analog, lens material PMMA, refractive index 1.49.By ray tracing and distribution curve flux Analysis obtains the distribution curve flux under rectangular coordinate system, and the angle of free-form surface lens longitudinal direction is 116 °, the angle of horizontal direction Degree is 58 °, and the light of lens outgoing forms approximate rectangular hot spot on the receiving surface.Since light is straight line irradiation, give birth to now The shape that street lamp in work finally irradiates is sector, and there are lighting dead angles between lamp and lamp, therefore the design is by matching optical software Illumination range and brightness are debugged, enough illumination is adjusted to meet road lighting, reduces the dazzle generated to drivers and pedestrians, By the simulation of optical software, which has very strong flexibility, is suitable for different kinds of roads road conditions.Part can either be avoided to go out Existing lighting dead angle, reduces blind area；Also it is avoided that certain regions for not needing illumination, it is inessential to reduce illumination to the greatest extent for light projection Area improves energy utilization rate, realizes environmental protection and energy saving.

As described above, the only preferred embodiment of the utility model is real when that cannot limit the utility model with this The range applied, i.e., generally according to simple equivalence changes made by present utility model application the scope of the claims and utility model description with Modification all still belongs in the range of the utility model patent covers.

Claims (1)

1. a kind of street lamp based on combined reflecting surface, which is characterized in that including lamp cap, lamp stand and control cabinet, the lamp cap includes Lamp holder and composite surface reflector, LED lamp panel and lens by being installed on successively except interior on the lamp holder, the composite surface Reflector is made of the plane mirror of several different directions, and all plane mirrors are by the light of the LED lamp panel It all is radiated objective plane, and all hot spots for being radiated target face formation are completely superposed with target face position, the LED Lamp plate is equipped with the LED light of several array arrangements that are square, and the lens are in the asymmetrical rectangle in transverse and longitudinal direction.