CN201803197U

CN201803197U - High power LED illuminating lamp capable of automatic thermal diffusion

Info

Publication number: CN201803197U
Application number: CN201020552794XU
Authority: CN
Inventors: 陈明; 陈树滋
Original assignee: Shanghai Jiatang Electronic Co Ltd
Current assignee: Shanghai Jiatang Electronic Co Ltd
Priority date: 2010-10-09
Filing date: 2010-10-09
Publication date: 2011-04-20
Anticipated expiration: 2020-10-09

Abstract

A high power LED illuminating lamp capable of automatic thermal diffusion comprises a lamp holder (1) with a bleed hole, a luminescent LED chip (7), a drive circuit assembly (6), a radiator (4) and a bulb casing (3), and is characterized in that the radiator (4) is a hollow tubular body, bulb casing (3) has a through channel in the center and is an annular body being asymmetric on inner and outer shell and having an opening; the luminescent LED chip (7) is arranged on the surface of the cylindrical radiator (4) in a surrounding manner, the upper part of the radiator (4) are connected to the lamp holder (1) via a fixing plate (2), and the lower part of the lamp holder (1) connects to the inner shell of the bulb casing fixedly connected on the fixing plate (2), forming the through channel in the center of the bulb casing; the central ventilating channel (5) is formed by the axial ventilating duct in the radiator and communicates with the bleed hole (1.1) on the external wall of the lamp holder (1). A high power LED illuminating lamp capable of automatic thermal diffusion is so structured and the thermal diffusion is integrated from top to bottom and from the internal to the external.

Description

A kind of from the heat dissipation high-power LED illuminating lamp

Technical field

The utility model relates to a kind of LED illuminating lamp, and is especially a kind of from the heat dissipation high-power LED illuminating lamp, belongs to LED lighting engineering class.

Background technology

Because the LED lighting has the factory director in service life, start-up time is short, energy-saving effect is remarkable, do not have ultra-violet radiation and advantages such as environmental pollution, safety in utilization height, is approved widely, has become the main flow of following energy-saving lamp.

But, because the LED lamp is photoelectric device, in its photoelectric conversion process, have only 15 ~ 25% electric energy to convert luminous energy to, remaining electric energy nearly all converts heat energy to, and the temperature of LED light fixture is raise.The existence of this phenomenon just if fansink designs is bad, can cause the heat of LED lamp light source not loose, and causes the light efficiency decline of light fixture and even burning of whole light fixture.The design of the radiator structure of present high-power LED lamp is to design metal heat sink very greatly and expose the radiating effect to obtain to match with the led light source heat in air, though this radiator can play the thermolysis of led light source, but the bulkiness of radiator and exposed, cause the outward appearance of LED indecency, the volume heaviness, cost increases, more because the LED light fixture connects high voltage source, metal heat sink is exposed outside, and end user's life security has been constituted very big threat.Low-power LED lamp in order to solve the heat dissipation problem of LED light electrical part, is arranged on radiator bulb external power joint bottom extending part usually.The radiator structure of this relative closure type shows that in actual use it can't reach fast, the purpose of temperature with high efficiency.

Therefore, seek the radiator structure that is applicable to LED, improve the LED light fixture from heat radiation function, be that the LED lamp is generalized to the problem that must solve in the civil area more widely all the time.

Summary of the invention

The purpose of the present utility model: be intended to propose a kind of, wish further to improve the radiating effect of high-powered LED lamp by simpler structure from the heat dissipation high-power LED illuminating lamp.

Above-mentioned utility model purpose is achieved through the following technical solutions:

This high-power LED illuminating lamp with self heat dissipation function, comprise lamp holder, LED luminescence chip, drive circuit assembly, radiator and the cell-shell of being with steam vent, it is characterized in that: described radiator is a hollow tube-shape body, is the annular solid of asymmetric upper shed in the middle of the described cell-shell for through passage, Internal and external cycle housing; Described LED luminescence chip is arranged on the drum surface of barrel-shaped radiator in the form of a ring, described radiator cylindrical shell top is connected with lamp holder by a fixed head, its underpart is connected with the cell-shell inner ring housing of fixing equally, being connected on the fixed head, constitute the central ventilation road that is made of the axial ventilation road in the through passage in cell-shell center, the radiator thus and be communicated with the steam vent that is provided with on the lamp holder outer wall, formation has from bottom to top, integrated high-power LED illuminating lamp from radiator structure from the inside to the outside.

This high-power LED illuminating lamp according to above technical scheme proposition with self heat dissipation function, utilize the steam vent that is provided with on the passage of hollow lumen of radiator and hollow ring cell-shell and the lamp holder jointly formation from bottom to top, from the inside to the outside integrated from radiator structure, therefore have heat radiation function more fast and efficiently.

Description of drawings

Fig. 1 is an overall structure schematic diagram of the present utility model.

Among the figure: 1-lamp holder 1.1-steam vent 2-fixed head 3-cell-shell 4-radiator 5-central ventilation road 6-drive circuit assembly 7-LED luminescence chip.

The specific embodiment

This high-power LED illuminating lamp with self heat dissipation function as shown in the figure, it is a kind of inventive improvements to the high-power LED illuminating lamp of existing self heat dissipation function.It comprises lamp holder 1, LED photophore 7, drive circuit assembly 6, radiator 4 and the cell-shell 3 of being with steam vent 1.1, this inventive improvements is embodied in: described radiator 5 is a hollow tube-shape body, is the annular solid of asymmetric upper shed in the middle of the described cell-shell 3 for through passage, Internal and external cycle housing; Described LED luminescence chip 7 is arranged on the drum surface of barrel-shaped radiator 5 in the form of a ring, described radiator 4, its cylindrical shell top is connected with lamp holder 1 by a fixed head 2, its underpart is connected with cell-shell inner ring housing on fixing, be connected fixed head 2 equally, constitute the central ventilation road 5 that is made of the axial ventilation road in the through passage in cell-shell center, the radiator thus and be communicated with the steam vent 1.1 that is provided with on lamp holder 1 outer wall, formation has from bottom to top, integrated high-power LED illuminating lamp from radiator structure from the inside to the outside.

Adopt that technique scheme constituted by bulb shell in ventilating duct and the lower annular in the middle of top lamp holder steam vent, the middle part radiator constitute jointly from bottom to top, from the inside to the outside integrated from radiator structure, have extremely strong ventilation and heat effect, quick, the high efficiency and heat radiation that require when this works for led chip are very good.Simultaneously,, can reach heat radiation better faster, under equal-wattage, identical radiator condition, adopt the annular support after improving to make surface temperature descend 7% by increasing cooling surface area.This is very effective to prolonging product service life, improving reliability.

Claims

1. A kind of from the heat dissipation high-power LED illuminating lamp, comprise lamp holder (1), LED luminescence chip (7), drive circuit assembly (6), radiator (4) and the cell-shell (3) of being with steam vent, it is characterized in that: described radiator (4) is a hollow tube-shape body, is the annular solid that through passage and Internal and external cycle housing are asymmetric upper shed in the middle of the described cell-shell (3); Described LED luminescence chip (7) is arranged on the drum surface of barrel-shaped radiator (4) in the form of a ring, described radiator (4), its cylindrical shell top is connected with lamp holder (1) by a fixed head (2), its underpart is with same fixing, the cell-shell inner ring housing that is connected on the fixed head (2) is connected, constitute thus by the through passage in cell-shell center, the central ventilation road (5) that axial ventilation road in the radiator constitutes, and being communicated with the steam vent (1.1) that is provided with on lamp holder (1) outer wall, formation has from bottom to top, integrated high-power LED illuminating lamp from the inside to the outside from radiator structure.