CN201851967U

CN201851967U - LED (light-emitting diode) street lamp cap

Info

Publication number: CN201851967U
Application number: CN2010202891347U
Authority: CN
Inventors: 文波; 杨波勇
Original assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Current assignee: GUANGZHOU JUJING ENERGY TECHNOLOGY Co Ltd
Priority date: 2010-08-11
Filing date: 2010-08-11
Publication date: 2011-06-01
Anticipated expiration: 2020-08-11

Abstract

The utility model discloses an LED (light-emitting diode) street lamp cap which comprises a radiator, a connecting seat arranged on the back surface of the radiator and used for fixing a lamp post, an LED lamp panel arrayed on the front surface of the radiator, a power box electrically connected with the LED lamp panel, a light-transmitting board arranged at the front end of the LED lamp panel, and a lamp shade fixing the light-transmitting board on the front surface of the radiator, wherein the radiator comprises a radiating substrate and radiating fins arrayed on the back surface of the radiating substrate and used for enlarging the radiating area, the LED lamp panel is fixed on the front surface of the radiating substrate, and the power box is fixed on the radiating fins. The radiating fins used for enlarging the radiating area are arranged on the back surface of the radiating substrate, the LED lamp panel is fixed on the front surface of the radiating substrate, and the power box is fixed on the radiating fins. The LED street lamp cap has the advantages of simple structure, low manufacture cost and high radiating efficiency.

Description

A kind of LED road lamp cap

[technical field]

The utility model relates to a kind of road lamp cap, particularly relates to a kind of LED road lamp cap.

[background technology]

LED is a kind of energy-efficient light source, and has the advantage of long working life, investigates its use cost and energy efficiency indexes all significantly is better than various conventional light source according to cycle life-cycle.But because LED itself is a semiconductor devices, operating temperature there is certain requirement, can only be operated in certain temperature range.High temperature can influence its working life greatly, so rapid dissipation the away of heat that how LED is produced in luminescence process is to guarantee that it can reach the key factor in normal service life.

Along with progress of science and technology, light emitting diode (LED) has obtained significant progress, the appearing as led light source and can get in being extensive use of and lay a good foundation of white light LEDs and great power LED, add the good characteristic of LED low-consumption high-efficiency, it has been adopted to replace the big incandescent lamp of traditional energy loss by all trades and professions and has been used for illumination.Street lighting also began to adopt LED as light source gradually in the last few years, but was limited to monomer LED luminance shortage to satisfy the demand of street lighting, and high-power LED street lamp often all adopts the lighting system of LED matrix fit lens.Yet, though LED is as a kind of new type light source, it is the process that is changed into luminous energy and heat energy by electric energy, the light energy use efficiency of present stage LED is generally 20%, and 80% consuming as heat energy arranged, therefore the heating problem of LED can not be ignored, and especially can't neglect especially as the heating problem of a large amount of great power LED matrixes that are equipped with.At present all can solve heat dissipation problem in the great power LED matrix by disposing large-scale fin, yet problem is following, the general power of LED street lamp constantly rises on the one hand, also do bigger and bigger for increasing its corresponding fin of area of dissipation, many extra cost expenses have been caused, the weight of light fixture also can't be accepted, secondly also need in use to be installed in the special-purpose lampshade owing to high-power LED street lamp, sometimes or even be placed in one relatively in the cover body of sealing, because heat can't form convection current with outside air in the cover body of sealing, can only carry out heat transmission seldom by the air of simple radiation and big thermal resistance, even the heat that big again fin also can't send LED is so taken away, finally cause heat to be hoarded on fin, radiating effect is had a greatly reduced quality, thereby influence the life-span of whole light fixture.

[utility model content]

The technical problems to be solved in the utility model provides a kind of simple in structure, cost is low, radiating efficiency is high LED road lamp cap.

The utility model is to solve above-mentioned technical problem by following technical proposals: a kind of LED road lamp cap, comprise radiator, the back side that is installed in radiator is used for fixing the Connection Block of lamp stand, array is at the LED in radiator front lamp plate, the power pack that is electrically connected with the LED lamp plate, be installed in the light-passing board of LED lamp plate front end and the lampshade that light-passing board is fixed on the radiator front, it is characterized in that, described radiator comprises that heat-radiating substrate and array are arranged on the radiating fin that the heat-radiating substrate back side is used to increase area of dissipation, described LED lamp plate is fixed on the front of described heat-radiating substrate, and described power pack is fixed on the described radiating fin.

The beneficial effects of the utility model are: because the utility model is provided with the radiating fin that increases area of dissipation at the heat-radiating substrate back side of radiator, the LED lamp plate is fixed on the heat-radiating substrate front of radiator, power pack is fixed on the radiating fin, and the utility model is simple in structure, cost of manufacture is low and have the high advantage of radiating efficiency.

Preferably, described LED lamp plate comprises that wiring board, the spaced array of bar shaped are arranged on a plurality of LED bulbs on the described wiring board and are nested with luminous intensity distribution cup on each LED bulb, and described wiring board is fixed on the described heat-radiating substrate.

Preferably, on described luminous intensity distribution cup a reflector is installed, described reflector is provided with the window of the opening coupling of a plurality of and described luminous intensity distribution cup, and described luminous intensity distribution cup is stuck on the described window.

Preferably, the back side of described radiator is provided with two ribs, and described Connection Block is installed on the described rib.

Preferably, described LED is a great power LED.

[description of drawings]

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

Fig. 1 is a decomposition texture schematic diagram of the present utility model.

Fig. 2 is the decomposition texture schematic diagram of lamp plate 40 shown in Figure 1.

Fig. 3 is the utility model assembly structure schematic diagram shown in Figure 1.

[specific embodiment]

Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to describe the technical solution of the utility model in detail.

With reference to accompanying drawing 1,2, shown in 3, the utility model comprises radiator 20, the back side that is installed in radiator 20 is used for fixing the Connection Block 55 of lamp stand 10, array is at the LED lamp plate 40 in radiator 20 fronts, the power pack 50 that is electrically connected with LED lamp plate 40, be installed in the light-passing board 28 of LED lamp plate 40 front ends and the lampshade 30 that light-passing board 28 is fixed on radiator 20 fronts, lamp stand 10 is fixed on the Connection Block 55 by screw 38, radiator 20 comprises that heat-radiating substrate 20b and array are arranged on the radiating fin 20a that the heat-radiating substrate 20b back side is used to increase area of dissipation, LED lamp plate 40 is fixed on the front of heat-radiating substrate 20b, and power pack 40 is fixed on the radiating fin 20a.LED lamp plate 40 comprises that wiring board 42, the spaced array of bar shaped are arranged on a plurality of LED bulbs 44 on the wiring board 42 and are nested with luminous intensity distribution cup 46 on each LED bulb 44, and wiring board 42 is fixed on the heat-radiating substrate 20b.One reflector 24 is installed on luminous intensity distribution cup 46, reflector 24 is provided with the window 26 of the opening coupling of a plurality of and described luminous intensity distribution cup 46, luminous intensity distribution cup 46 is stuck on the window of offering on the reflector 24 26, and described reflector 24 is fixed on the front of heat-radiating substrate 20b by screw 32.The back side of radiator 20 is provided with rib 22a, the 22b of two projectioies, and Connection Block 55 is installed on rib 22a, the 22b by screw rod 36.Described LED44 is a great power LED.

The above is all so that the utility model conveniently to be described, in the spiritual category that does not break away from the utility model creation, the various simple covert and modification that those skilled in the art did of being familiar with this technology still belongs to protection domain of the present utility model.

Claims

1. LED road lamp cap, the Connection Block, array that the back side that comprise radiator, is installed in radiator is used for fixing lamp stand at the LED in radiator front lamp plate, the power pack that is electrically connected with the LED lamp plate, be installed in the light-passing board of LED lamp plate front end and the lampshade that light-passing board is fixed on the radiator front, it is characterized in that: described radiator comprises that heat-radiating substrate and array are arranged on the radiating fin that the heat-radiating substrate back side is used to increase area of dissipation, described LED lamp plate is fixed on the front of described heat-radiating substrate, and described power pack is fixed on the described radiating fin.

2. according to the described LED road lamp cap of claim 1, it is characterized in that: described LED lamp plate comprises that wiring board, the spaced array of bar shaped are arranged on a plurality of LED bulbs on the described wiring board and are nested with luminous intensity distribution cup on each LED bulb, and described wiring board is fixed on the described heat-radiating substrate.

3. according to the described LED road lamp cap of claim 2, it is characterized in that: on described luminous intensity distribution cup a reflector is installed, described reflector is provided with the window of the opening coupling of a plurality of and described luminous intensity distribution cup, and described luminous intensity distribution cup is stuck on the described window.

4. according to the described LED road lamp cap of claim 1, it is characterized in that: the back side of described radiator is provided with two ribs, and described Connection Block is installed on the described rib.

5. according to claim 3 or 4 described LED road lamp caps, it is characterized in that: described LED is a great power LED.