CN201259154Y

CN201259154Y - Combination LED street lamp

Info

Publication number: CN201259154Y
Application number: CNU200820172829XU
Authority: CN
Inventors: 李兴建; 周舟; 李洪献; 陈怀明
Original assignee: JINAN MACHINERY INSTITUTE
Current assignee: JINAN MACHINERY INSTITUTE
Priority date: 2008-10-07
Filing date: 2008-10-07
Publication date: 2009-06-17
Anticipated expiration: 2018-10-07

Abstract

The utility model discloses an illuminator, which in particular discloses a combined LED street lamp. The combined LED street lamp comprises a lamp body subassembly and an illuminating subassembly. The lamp body subassembly primarily consists of a shell on the tail end, a middle heat sink and a shell on the head connected through bolts. The illuminating subassembly consists of an aluminum base board where circuits are arranged, LED lamps and a light distribution shield, which is fixed on the mounting base plane of the cooling device, thus constituting the overall structure of the LED street lamp. The utility model is characterized in that (1) the number of the heat sink units (moulded in dies) or the length of extruded heat sinks depends on the illumination power of the lamp fixture; (2) heat pipe heat sink grooves are prearranged on the extruded heat sinks; and heat pipe heat sinks can be used for lamp fixtures as required; (3) the special shape of the light distribution shield is designed so that a round illuminated zone of the light emitted by the LED lamps is converted into a rectangular illuminated zone through the refraction of the light distribution shield, thus improving the luminance and the uniformity of the illuminated zone.

Description

Combined type LED road lamp

(1) technical field

The utility model relates to a kind of lighting device, particularly a kind of combined type LED road lamp.

(2) background technology

Up to the present, global lighting source has experienced four-stage altogether, that is: the incandescent lamp of the first generation; The fluorescent lamp of the second generation; Modern lighting means-LED the lamp in the gas-discharge lamp of the third generation and the 4th generation.Along with solid-state physics and development of semiconductor, the solid light source LED lamp technology in the 4th generation is ripe day by day, and it is also natural to be applied to street lighting.Especially there are a lot of deficiencies in present single, the unstable properties of LED lamp post structure aspect heat radiation and luminous intensity distribution, need further to improve.

(3) summary of the invention

The utility model is in order to remedy the deficiencies in the prior art, a kind of combined type LED road lamp is provided, this street lamp is by its radiator structure design, adopt hot pipe technique flexibly, preferably resolve heat dissipation problem, and, the illumination and the illumination uniformity in the regulation irradiation area have been improved by special light distributing cap design.

The utility model is achieved by the following technical solution:

A kind of combined type LED road lamp, comprise lamp body component, light fixture, its special character is: lamp body component is made up of the connection securing member between the afterbody housing that connects successively, middle part radiator, head shell and the connection three, light fixture comprises light-emitting substrate, light distributing cap and connects securing member that described light-emitting substrate is made of aluminium base that is furnished with circuit and welding LED lamp pearl thereon.

Combined type LED road lamp of the present utility model, light distributing cap parts center has oval bellmouth, the outside, major and minor axis both sides of oval bellmouth respectively forms an arc surface, inner face is provided with oval taper axially bored line and becomes the domatic of 40 ° of-60 ° of angles, below oval bellmouth, be provided with oblong pits, the interior lateral surface of oblong pits constitutes the total reflection zone of light distributing cap, the interior lateral surface of oval taper hole.The index ellipsoid of promptly domatic, arc surface, formation light distributing cap, oval taper hole be the direct projection zone of light distributing cap around the space that surrounds, three regional actings in conjunction have formed the irradiated region of a rectangle.

Combined type LED road lamp of the present utility model, described heat sink assembly can adopt pressure casting method moulding or pressing method moulding.Three lateral surfaces of the radiator of described die cast are provided with connecting hole, by the radiator of this connecting hole one-tenth different volumes capable of being combined.

Combined type LED road lamp of the present utility model, the radiator light-emitting substrate of extrusion modling is installed on connecting plate, and connecting plate is installed on the radiator installation base surface, forms toroidal cavity, is installed with lead in the cavity and links to each other with light-emitting substrate; The installation base surface of the radiator light-emitting substrate of described extrusion modling and horizontal plane form 5 °-7 ° angle, to enlarge the irradiated region of road bearing of trend, improve the uniformity of illumination; According to the lighting power of light fixture, length that the optional sanction of the radiator of described extrusion modling is different and afterbody housing, head shell are formed lamp body.

Combined type LED road lamp of the present utility model, the light-emitting substrate coating insulating protective layer in the described light fixture, protection pad, waterproof and dustproof, anti-acid etching; Described lamp body component afterbody housing, radiator, head shell are all made by Heat Conduction Material, and connecting bolt adopts stainless steel.

LED lamp pearl is weldingly fixed on the aluminium base according to the position of aluminium base design, forms luminous plaque.This luminous plaque is fixed in the radiator mounting plane by screw, and light distributing cap places LED luminous plaque bottom, and the light distribution curved surface of light distributing cap is corresponding with the arrangement of LED lamp pearl.

Special character of the present utility model is:

1, can form described combined type LED road lamp easily according to any radiator of adjusting heat radiation monomer number and cutting different length of the size of power demand.

2, the lamp body component of described combined type LED road lamp, light fixture are combined into one by different bolts, nut or screw connection, form complete LED street lamp.

3, described light distributing cap has designed optical surface, the bent body of regulation according to optical principle; Be provided with outstanding domaticly in the both sides, top of through hole, the both sides, inside of through hole are provided with cambered surface; The light distributing cap surface has through hole over against LED lamp Zhu Chu.

Combined type LED road lamp of the present utility model, described afterbody housing adopt Heat Conduction Material to make, and inside is provided with electric panel room, can adorn the PWM power supply in the electric panel room or all kinds of modular power sources are installed, and be furnished with control, holding circuit.

The radiator of extrusion modling is reserved with the groove that heat pipe is installed.When light fixture need increase power illumination, the endotherm section of heat-pipe radiator can be inserted groove, the closely equipped radiated rib of the other end section of condensing is to guarantee good heat conduction, place in the cavity of head shell, cavity top and bottom are equipped with passage, form the air Natural Circulation, help heat radiation.

Combined type LED road lamp of the present utility model, the material of described light distributing cap are PMMA or PC.The both sides, top of described light distributing cap through hole are provided with outstanding domatic, and the both sides, inside of through hole are provided with cambered surface; The described domatic 40 degree angles that become with vertical direction.Described light distributing cap is semi-enclosed, is that the light direct irradiation is on the road surface of required illumination in the 40 degree scopes at luminous angle Φ 1/2.Light produces refraction or total reflection in the road vertical direction by cover body in the irradiation of road bearing of trend straight line when luminous angle is spent greater than 80, forms the irradiated region of rectangle in irradiation area, has increased the luminous flux of road lighting area, has improved illuminating effect.

By taking technique scheme, the utility model possesses following beneficial effect: 1. better solved LED road lamp cooling problem; 2. improve the illumination and the illumination uniformity in the regulation irradiation area; 3. stable performance, long service life have more effects of energy conservation and environmental protection; 4. use different control circuits, applicable to alternating current electrical network and solar powered.

(4) description of drawings

Below in conjunction with accompanying drawing the utility model is further described.

Fig. 1 is the radiator of combined type LED road lamp die cast shown in the utility model embodiment 1 perspective view;

Fig. 2 is the structural representation of light fixture shown in the utility model embodiment 1;

Fig. 3 is the radiator of combined type LED road lamp extrusion modling shown in the utility model embodiment 2 perspective view;

Fig. 4 is the structural representation of light fixture shown in the utility model embodiment 2;

Fig. 5 is that the master of the utility model light distributing cap looks schematic diagram;

Fig. 6 is the schematic top plan view of the utility model light distributing cap;

Fig. 7 is a New LED light distributing cap single type shape schematic diagram;

Fig. 8 is the generalized section of Fig. 7;

Fig. 9 is that the extrusion pressing type radiator inserts the heat-pipe radiator schematic diagram.

Among the figure, 1 afterbody housing, 2 radiators, 3 head shells, 4 bolts, 5 connecting plates, 6 are furnished with the aluminium base of circuit, 7 light distributing caps, 8 LED lamp pearls, 9 oval bellmouths, 10 is domatic, 11 cambered surfaces, 12 heat pipes, 13 heat-pipe radiators, 14 slots.

(5) specific embodiment

Embodiment 1:

This example lamp body component is connected as a single entity by the monomer radiator (2) and the head shell (3) of bolt connection securing members such as (4) with afterbody housing (1), varying number, forms the basic structure of lamp body.Light fixture is made up of connecting plate (5), the aluminium base (6) that is furnished with circuit, light distributing cap (7), LED lamp pearl (8), connecting bolt (4), and concrete connected mode is seen embodiment 1 Fig. 1, Fig. 2.

Lamp assembly afterbody housing (1) is provided with electrical equipment cavity is installed, and can adorn PWM power supply and control module, and cavity is reserved with through wires hole and links to each other with radiator threading duct.Cavity contacts with radiator, side plate is provided with connecting hole, is connected with radiator by connecting securing member (4), and radiator (2) monomer is vertical rib structure, forward and backward, inboard three fins all around are provided with connecting hole, and available as required bolt (4) is combined into one the polylith radiator.Head shell (3) interior plate has connecting hole, is connected with radiator by bolt (4).Afterbody housing (1), radiator (2), head shell (3) connect into complete basic lamp body structure by bolt (4).Light distributing cap (7) parts center has oval bellmouth (9), the outside, major and minor axis both sides of oval bellmouth (9) respectively forms an arc surface (11), inner face is provided with domatic (10) that become 40 ° of-60 ° of angles with oval bellmouth (9) axis, is provided with oblong pits in oval bellmouth (9) below.

Light fixture connecting plate (5) is fixed in the radiator mounting plane by bolt (4), form a toroidal cavity with radiator (4) inner concave, power line passes cavity and is connected with each LED light-emitting substrate, the light-emitting substrate inferolateral surface scribbles waterproof insulating layer, upper side scribbles heat-conducting silicone grease and places connecting plate downside basal plane, be screwed, the substrate below is equipped with light distributing cap, the light distributing cap surface configuration makes the emitted light of LED produce refraction and total reflection at specific direction, form the irradiation area of rectangle, improved illuminating effect.

Embodiment 2:

Fig. 3, Fig. 4, Fig. 5 to Fig. 9 are another kind of specific embodiment of the present utility model.This example is with the difference of first kind of embodiment:

1, radiator is extrusion modling, and the inner usefulness that forms annular chamber for threading does not need connecting plate (5).

2, radiator can be selected the needs of different length with satisfied heat radiation, and not need polylith to be connected according to the power of lamp luminescence element.Pass three studs in the radiator cavity, afterbody housing (1), head shell (3) are formed one.

3, lumen of radiator is preset with heat pipe slot (14), when selecting high-power illumination, heat-pipe radiator (13) endotherm section can be inserted in the default groove, condensation segment is positioned among head shell (3) cavity, head shell cavity upper and lower part has air vent, helps heat exchange.The employing heat-pipe radiator can effectively reduce the weight of radiator, reduces the volume of light fixture.

Claims

1. combined type LED road lamp, comprise lamp body component, light fixture, it is characterized in that: lamp body component is made up of the connection securing member between the afterbody housing (1) that connects successively, middle part radiator (2), head shell (3) and the connection three, light fixture comprises light-emitting substrate, light distributing cap (7) and connects securing member that described light-emitting substrate is made of aluminium base that is furnished with circuit (6) and welding LED lamp pearl (8) thereon.

2, combined type LED road lamp according to claim 1, it is characterized in that: light distributing cap (7) parts center has oval bellmouth (9), the outside, major and minor axis both sides of oval bellmouth (9) respectively forms an arc surface (11), inner face is provided with domatic (10) that become 40 ° of-60 ° of angles with oval bellmouth (9) axis, is provided with oblong pits in oval bellmouth (9) below.

3, the light distributing cap used of combined type LED road lamp according to claim 2, it is characterized in that: described light distributing cap (7) material is PMMA or PC.

4, combined type LED road lamp according to claim 1 is characterized in that: the installation base surface of described radiator light-emitting substrate and horizontal plane form 5 °-7 ° angle.

5, combined type LED road lamp according to claim 1, it is characterized in that: described radiator (2) is preset with the slot (14) that heat-pipe radiator is installed, the heat-pipe radiator endotherm section inserts in the slot (14), the section of condensing places among the cavity of head shell (3), and the cavity upper and lower part has air vent.

6, according to claim 1,2 or 3 described combined type LED road lamps, it is characterized in that: described light-emitting substrate is installed on the connecting plate (5), connecting plate (5) is installed on radiator (2) installation base surface and forms toroidal cavity, is installed with the lead that links to each other with light-emitting substrate in the cavity.

7, combined type LED road lamp according to claim 6 is characterized in that: (2) three lateral surfaces of described radiator are provided with connecting hole.

8, according to claim 1,2 or 3 described combined type LED road lamps, it is characterized in that: the light-emitting substrate coating insulating protective layer in the described light fixture.

9, combined type LED road lamp according to claim 8 is characterized in that: described lamp body component afterbody housing (1), radiator (2), head shell (3) are all made by Heat Conduction Material, connect securing member and adopt stainless steel.