CN201273550Y

CN201273550Y - Magnetofluid LED lamp

Info

Publication number: CN201273550Y
Application number: CNU2008201468377U
Authority: CN
Inventors: 朱建钦
Original assignee: 朱建钦
Current assignee: Dajin Orient Lighting (Shenzhen) Co., Ltd.
Priority date: 2008-08-25
Filing date: 2008-08-25
Publication date: 2009-07-15
Anticipated expiration: 2018-08-25

Abstract

The utility model relates to a magnetic fluid LED lamp comprising a metallic base plate (2) of a luminescent part (1), a magnetic fluid pipeline (3) connected with the metallic base plate (2), and a heat exchanger (4) arranged in the magnetic fluid pipeline (3), wherein the magnetic fluid pipeline (3) is full of magnetic liquid (30), a closed circulation loop is formed on the pipeline (3), more than one magnet coils (5) are arranged on the magnetic fluid pipeline (3), under the action of the magnetic field generated by the magnet coils (5), magnetic particles in the magnetic liquid (30) can form a chain-shaped recycle liquid slug structure (7) along the magnetic field direction, the recycle liquid slug structure (7) drives the magnetic liquid (30) in the magnetic fluid pipeline to flow circularly, thereby transferring the heat resource of the luminescent part (1) into the heat exchanger (4) for dissipating.

Description

Magnetic fluid LED light fixture

Technical field

The utility model relates to a kind of LED light fixture, refers specifically to a kind of LED light fixture that utilizes magnetic fluid to dispel the heat.

Background technology

Tradition is to solve its heat dissipation problem than the application top priority of high-power LED lamp, the conduction of employing is arranged at present, radiation, air-cooled, multiple mode such as liquid cooling dissipates to the heat that led chip produces, because the led chip area is very little, a large amount of heat energy are all concentrated on the very little area, the passive heat dissipating method of conventional increase cooling surface area dissipates to the heat energy of concentrating in the led chip does not have too big positive role, therefore, people have tested the mode of multiple active heat removal again, a kind of LED lamp cooling structure is disclosed on 08 15th, 2007 as Patent Office of the People's Republic of China, application number is 200620118732.1, and this patent comprises heat dissipation base, heat radiator body and a plurality of heat pipe.This patent used gravity assisted heat pipe to dissipate heat that led chip the inside concentrates, better radiating effect is arranged, but this class uses gravity assisted heat pipe limited by the inherent characteristic of gravity assisted heat pipe as the mode of heat conduction, one, heat pipe must be vertically or the use of tilting a little, the medium of the inside could utilize gravity reflux to descend, and forms a normal periodic duty environment; They are two years old, the mobile of the heat-conducting medium of heat pipe the inside realized by phase transformation (liquid phase-vapour phase), the effect of heat radiation and bad when the temperature difference is little, and the optimum working temperature of led chip point is not to be higher than 65 degrees centigrade, do not have to form the condition of the big temperature difference, the high-power LED light fixture uses this mode to dispel the heat and does not reach desirable effect.

Patent Office of the People's Republic of China discloses a kind of LED light fixture water-cooling structure on November 28th, 2007, application number is 200620029631.7, the heat abstractor of this patent comprises the equipment of pumping up water, water storage device, drain element and radiator, the active heat removal method that this class utilizes liquid circulation carrying out heat to dissipate is very effective, but as having a fatal defective in the long-term use of a light fixture: must exist a pump in the fluid circulation system as power source, all there is the mechanical movement structure in used pump at present, can't guarantee the reliability of long-time running.

The utility model content

The purpose of this utility model is to provide a kind of magnetic fluid LED light fixture, and a kind of pipeline of hollow is applied controlled electromagnetic force, and the magnetic fluid of controlling in the pipeline flows, thereby the heat that the light fixture led chip is produced dissipates.

In order to achieve the above object, the utility model is realized by following technical scheme.

A kind of magnetic fluid LED light fixture, comprise: the metal substrate that is provided with luminous component, the magnetic fluid pipeline that connects metal substrate, be located at the heat exchanger of magnetic fluid pipeline, in the magnetic fluid pipeline, be full of magnetic fluid, pipeline forms an airtight closed circuit, on the magnetic fluid pipeline, be provided with an above solenoid, under the magnetic field effect that solenoid produces, magnetic particle in the magnetic fluid can form chain circulation fluid plug structure along magnetic direction, the magnetic fluid that drives in the magnetic fluid pipeline circulates, and the thermal source of luminous component is transferred to heat exchanger dissipate.

The utility model beneficial effect is, is provided with an above solenoid on the magnetic fluid pipeline, and under the magnetic field effect that solenoid produces, the magnetic fluid that drives in the magnetic fluid pipeline circulates, and the thermal source of luminous component is transferred to heat exchanger dissipate.Compare with traditional LED radiating mode, magnetic fluid has better heat transfer effect than other base fluid, and radiating efficiency height, this light fixture do not have machinery and drive required pump, so moving component is few, and reliability height, long service life.

Description of drawings

Fig. 1 is the utility model magnetic fluid LED fitting structure schematic diagram

The specific embodiment

Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.

A kind of magnetic fluid LED light fixture as shown in Figure 1, comprise: the metal substrate 2 that is provided with luminous component 1, the magnetic fluid pipeline 3 that connects metal substrate 2, be located at the heat exchanger 4 of magnetic fluid pipeline 3, in magnetic fluid pipeline 3, be full of magnetic fluid 30, pipeline 3 forms an airtight closed circuit, on magnetic fluid pipeline 3, be provided with an above solenoid 5, under the magnetic field effect that solenoid 5 produces, magnetic particle in the magnetic fluid 30 can form chain circulation fluid plug structure 7 along magnetic direction, the magnetic fluid 30 that liquid plug structure 7 drives in the magnetic fluid pipeline circulates, and the thermal source of luminous component 1 is transferred to heat exchanger 4 dissipate.

Claims

1, a kind of magnetic fluid LED light fixture, it is characterized in that: comprising: the metal substrate (2) that is provided with luminous component (1), the magnetic fluid pipeline (3) that connects metal substrate (2), be located at the heat exchanger (4) of magnetic fluid pipeline (3), in magnetic fluid pipeline (3), be full of magnetic fluid (30), pipeline (3) forms an airtight closed circuit, on magnetic fluid pipeline (3), be provided with an above solenoid (5), under the magnetic field effect that solenoid (5) produces, magnetic particle in the magnetic fluid (30) can form chain circulation fluid plug structure (7) along magnetic direction, the magnetic fluid (30) that liquid plug structure (7) drives in the magnetic fluid pipeline circulates, and the thermal source of luminous component (1) is transferred to heat exchanger (4) dissipate.