WO2014146421A1 - Magnetic fluid heat exchange led lamp - Google Patents

Magnetic fluid heat exchange led lamp Download PDF

Info

Publication number
WO2014146421A1
WO2014146421A1 PCT/CN2013/084939 CN2013084939W WO2014146421A1 WO 2014146421 A1 WO2014146421 A1 WO 2014146421A1 CN 2013084939 W CN2013084939 W CN 2013084939W WO 2014146421 A1 WO2014146421 A1 WO 2014146421A1
Authority
WO
WIPO (PCT)
Prior art keywords
magnetic fluid
heat
aluminum substrate
heat dissipation
led lamp
Prior art date
Application number
PCT/CN2013/084939
Other languages
French (fr)
Chinese (zh)
Inventor
冯林
Original Assignee
Feng Lin
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Feng Lin filed Critical Feng Lin
Priority to CN201380030743.7A priority Critical patent/CN104379986B/en
Publication of WO2014146421A1 publication Critical patent/WO2014146421A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/56—Cooling arrangements using liquid coolants
    • F21V29/58—Cooling arrangements using liquid coolants characterised by the coolants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]

Definitions

  • the present invention relates to an LED lamp, and more particularly to a magnetic fluid heat exchange LED lamp. Background technique
  • the existing high-power LED lamps and LED lamps have a low efficiency of heat dissipation, which affects the heat dissipation of the PN junction of the LED lamp and reduces the service life of the LED lamp.
  • the object of the present invention is to overcome the deficiencies of the prior art and provide a magnetic fluid heat exchange LED lamp, which utilizes a magnetic fluid and a non-magnetic fluid to continuously circulate and exchange positions, and dissipates the heat of the PN junction of the LED to improve the heat dissipation effect of the LED lamp. .
  • the magnetic fluid heat exchange LED lamp comprises an LED, a magnetic fluid radiator and a controller; the LED comprises a PN junction, a base, an electrode, a silica gel ball, a barrier layer, a copper layer, and an insulation layer.
  • the aluminum substrate, the PN junction is connected with the base, the base is connected with the copper layer, the copper layer is connected with the insulation layer, and the insulation layer is connected with the aluminum substrate;
  • the magnetic fluid radiator comprises a heat dissipation cover, a magnetic fluid, a non-magnetic fluid and an electromagnetic coil
  • the heat shield is sealed with the aluminum substrate to form a sealed cavity, the magnetic fluid and the non-magnetic fluid are sealed in the sealed cavity, the heat sink is provided with a spiral heat sink, and the electromagnetic coil is disposed on the spiral heat sink;
  • the controller includes an LED power supply and The pulse power generator, the LED power source is connected to the electrode, the pulse power generator is connected to the electromagnetic coil; the specific gravity of the magnetic fluid and the non-magnetic fluid are different, and the magnetic fluid and the non-magnetic fluid are mutually incompatible liquids.
  • the working principle of the magnetic fluid heat exchange LED lamp is: the magnetic fluid heat exchange LED lamp is provided with a magnetic fluid radiator and a controller, and the heat dissipation cover of the magnetic fluid radiator and the aluminum substrate of the LED form a sealed cavity, and the sealed cavity is filled There are magnetic fluids and non-magnetic fluids; the specific gravity of the magnetic fluid is smaller than the specific gravity of the non-magnetic fluid, the magnetic fluid is above the non-magnetic fluid, the non-magnetic fluid is in contact with the aluminum substrate, and the magnetic fluid is in contact with the heat sink; when working, the PN junction of the LED The heat is transferred to the aluminum substrate, and after the non-magnetic fluid absorbs the heat of the aluminum substrate, the controller controls the electromagnetic coil to be energized, and the electromagnetic coil generates a magnetic field to magnetize the magnetic fluid, so that the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid, and the non-magnetic fluid rises to a heat sink that transfers heat to the heat sink
  • the fluid rises to the heat sink, transferring heat to the heat sink, and the heat sink dissipates heat to the space.
  • the non-magnetic fluid after the heat sink is cooled down to the position of the aluminum substrate, so that it circulates continuously, using magnetic fluid and non-magnetic fluid Exchanging the position, dissipating the heat of the aluminum substrate; or, the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid, the magnetic fluid is below the non-magnetic fluid, the magnetic fluid is in contact with the aluminum substrate, and the non-magnetic fluid is in contact with the heat sink, and the control is utilized.
  • the electromagnetic coil is continuously circulated and de-energized, generating a continuously alternating magnetic field, changing the specific gravity of the magnetic fluid, controlling the continuous exchange of the magnetic fluid and the non-magnetic fluid, and using the magnetic fluid and the non-magnetic fluid as the carrier of the heat. , continuously transfer the heat of the aluminum substrate to the heat sink to improve the heat dissipation effect of the LED.
  • the heat dissipation path of the magnetic fluid heat exchange LED lamp has two paths: First, the heat of the PN junction of the LED passes through the base, a copper layer, an aluminum substrate, a magnetic fluid, a heat sink, and an atmosphere; and the second: the heat of the PN junction of the LED passes through
  • the base is coated with a copper layer ⁇ an aluminum substrate, a non-magnetic fluid, a heat sink, and an atmosphere.
  • the magnetic fluid heat exchange LED lamp is provided with a magnetic fluid radiator
  • the magnetic fluid radiator is provided with a magnetic fluid and a non-magnetic fluid
  • the electromagnetic coil is controlled by the controller to generate a continuously alternating magnetic field, so that the magnetic fluid
  • the specific gravity changes continuously, so that the magnetic fluid and the non-magnetic fluid continuously circulate and exchange positions, and the magnetic fluid and the non-magnetic fluid act as the carrier of the heat, and the heat of the PN junction is continuously sent from the aluminum substrate to the heat dissipation cover, thereby improving the heat dissipation efficiency of the LED lamp.
  • Figure 1 is a schematic view showing the structure of a magnetic fluid heat exchange LED lamp. detailed description
  • the magnetic fluid heat exchange LED lamp includes an LED 1, a magnetic fluid heat sink 2, and a controller 3; the LED 1 includes a PN junction 4, a base 5, an electrode 6, and a silica gel ball. 7.
  • the magnetic fluid heat sink 2 includes a heat dissipation cover 12, a magnetic fluid 13, a non-magnetic fluid 14, and an electromagnetic coil 15.
  • the heat dissipation cover 12 is sealingly connected with the aluminum substrate 11 to form a sealed cavity 16, a magnetic fluid 13 and The non-magnetic fluid 14 is sealed in the sealed cavity 16, the heat shield 12 is provided with a spiral heat sink 17, and the electromagnetic coil 15 is disposed on the spiral heat sink 17.
  • the controller 3 includes an LED power source 18 and a pulse power generator 19, and the LED power source 18 is connected to the electrode 6, the pulse power generator 19 and the electromagnetic coil.
  • the specific gravity of the magnetic fluid 13 and the non-magnetic fluid 14 is different, the specific gravity of the magnetic fluid is smaller than the specific gravity of the non-magnetic fluid, or the specific gravity of the non-magnetic fluid is smaller than the specific gravity of the magnetic fluid; the magnetic fluid 13 and the non-magnetic fluid 14 are not mutually Compatible liquid.
  • the heat shield 12 includes a heat sink 20 and a sealing cover 21, and the sealing cover 21 is sealingly connected to the heat sink 20.
  • a sealing ring 22 is disposed between the sealing cover 21 and the heat sink 20, and the heat sink is provided.
  • 20 is sealingly connected to the aluminum substrate 11, and a heat-radiating gasket 23 is disposed between the heat-dissipating cylinder 20 and the aluminum substrate 11 of the LED 1, and the sealing cover 21 is provided with a first heat sink 24.
  • the first heat dissipation fin 24 of the sealing cover 21 is provided with a heat dissipation cavity 25, and the heat dissipation cavity 25 is provided with a magnetic fluid 13 or a non-magnetic fluid 14;
  • the cover 12 is connected to the outer casing 26, and the controller 3 is disposed in the outer casing 3.
  • the outer casing 3 is provided with a venting hole 27, and the LED 1 is fixedly connected to the outer casing 26; the outer casing 26 is provided with a second heat sink 28.
  • the volume of the magnetic fluid 13 is smaller than the volume of the non-magnetic fluid 14; the sealed cavity 16 is filled with the magnetic fluid 13 and the non-magnetic fluid 14, the volume of the magnetic fluid 13 plus the volume of the non-magnetic fluid 14
  • the sealed cavities 16 have the same volume.
  • an inner sleeve 29 is disposed in the heat sink 20, and the inner sleeve 29 is interference-fitted with the heat sink 20, and the inner sleeve 29 is made of a ferromagnetic material.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

A magnetic fluid heat exchange LED lamp which is provided with a magnetic fluid radiator (2). The magnetic fluid radiator (2) is provided with a magnetic fluid (13) and a non-magnetic fluid (14). A controller (3) controls an electromagnetic coil (15) to generate a continuously alternating magnetic field so that the specific gravity of the magnetic fluid (13) changes continuously, and then the magnetic fluid (13) and the non-magnetic fluid (14) alternately exchange locations continuously. Using the magnetic fluid (13) and the non-magnetic fluid (14) as heat carriers, the heat of a PN junction (4) is continuously transferred from an aluminium substrate (11) to a radiating cover (12), thereby increasing the heat radiation efficiency of the LED lamp.

Description

磁流体热交换 LED灯  Magnetic fluid heat exchange LED lamp
技术领域 Technical field
本发明涉及一种 LED灯， 特别是一种磁流体热交换 LED灯。 背景技术  The present invention relates to an LED lamp, and more particularly to a magnetic fluid heat exchange LED lamp. Background technique
现有的大功率 LED灯， LED灯 PN结的热量散发的效率较低， 影响了 LED灯 PN结的热量散发， 降低了 LED灯的使用寿命。 发明内容  The existing high-power LED lamps and LED lamps have a low efficiency of heat dissipation, which affects the heat dissipation of the PN junction of the LED lamp and reduces the service life of the LED lamp. Summary of the invention
本发明的目的是克服现有技术的不足，提供一种磁流体热交换 LED灯， 利用磁流体与非磁流体不断循环交换位置， 将 LED的 PN结的热量散发出 去， 提高 LED灯的散热效果。  The object of the present invention is to overcome the deficiencies of the prior art and provide a magnetic fluid heat exchange LED lamp, which utilizes a magnetic fluid and a non-magnetic fluid to continuously circulate and exchange positions, and dissipates the heat of the PN junction of the LED to improve the heat dissipation effect of the LED lamp. .
本发明所采用的技术方案是： 磁流体热交换 LED灯包括有 LED、 磁流 体散热器以及控制器； LED包括有 PN结、 底座、 电极、 硅胶球、 阻悍层、 敷铜层、 绝缘层以及铝基板， PN结与底座连接， 底座与敷铜层连接， 敷铜 层与绝缘层连接， 绝缘层与铝基板连接； 磁流体散热器包括有散热罩、 磁 流体、 非磁流体以及电磁线圈， 散热罩与铝基板密封连接构成一个密封型 腔， 磁流体以及非磁流体密封于密封型腔内， 散热罩设有螺旋散热片， 电 磁线圈设于螺旋散热片上； 控制器包括有 LED电源以及脉冲电源发生器， LED 电源与电极连接， 脉冲电源发生器与电磁线圈连接； 磁流体与非磁流 体的比重不同， 磁流体与非磁流体为互不相容的液体。  The technical solution adopted by the present invention is: The magnetic fluid heat exchange LED lamp comprises an LED, a magnetic fluid radiator and a controller; the LED comprises a PN junction, a base, an electrode, a silica gel ball, a barrier layer, a copper layer, and an insulation layer. And the aluminum substrate, the PN junction is connected with the base, the base is connected with the copper layer, the copper layer is connected with the insulation layer, and the insulation layer is connected with the aluminum substrate; the magnetic fluid radiator comprises a heat dissipation cover, a magnetic fluid, a non-magnetic fluid and an electromagnetic coil The heat shield is sealed with the aluminum substrate to form a sealed cavity, the magnetic fluid and the non-magnetic fluid are sealed in the sealed cavity, the heat sink is provided with a spiral heat sink, and the electromagnetic coil is disposed on the spiral heat sink; the controller includes an LED power supply and The pulse power generator, the LED power source is connected to the electrode, the pulse power generator is connected to the electromagnetic coil; the specific gravity of the magnetic fluid and the non-magnetic fluid are different, and the magnetic fluid and the non-magnetic fluid are mutually incompatible liquids.
磁流体热交换 LED灯的工作原理是： 磁流体热交换 LED灯设有磁流体 散热器以及控制器， 磁流体散热器的散热罩与 LED的铝基板构成一个密封 型腔， 密封型腔内充满有磁流体以及非磁流体； 磁流体的比重小于非磁流 体的比重， 磁流体在非磁流体的上方， 非磁流体与铝基板接触， 磁流体与 散热罩接触； 工作时， LED的 PN结将热量传递到铝基板， 非磁流体吸收铝 基板的热量后， 控制器控制电磁线圈通电， 电磁线圈产生磁场将磁流体磁 化， 使磁流体的比重大于非磁流体的比重， 非磁流体上升到散热罩， 将热 量传递给散热罩， 散热罩将热量散发于空间； 同时， 磁流体下降到铝基板， 吸收铝基板的热量； 磁流体吸收铝基板的热量后， 控制器控制电磁线圈断 电， 电磁线圈的磁场消失，磁流体的比重恢复到小于非磁流体比重的状态， 吸收了铝基板热量的磁流体上升到散热罩， 将热量传递给散热罩， 散热罩 将热量散发于空间； 同时， 经散热罩散热后的非磁流体下降到铝基板的位 置， 如此不断循环， 利用磁流体与非磁流体交换位置， 将铝基板的热量散 发出去； 或者， 磁流体的比重大于非磁流体的比重， 磁流体在非磁流体的 下方， 磁流体与铝基板接触， 非磁流体与散热罩接触， 利用控制器控制电 磁线圈不断循环通电以及断电， 产生不断交变的磁场， 使磁流体的比重不 断发生变化， 控制磁流体与非磁流体不断循环交换位置， 以磁流体以及非 磁流体作为热量的载体， 不断将铝基板的热量传送到散热罩， 提高 LED的 散热效果。 磁流体热交换 LED灯的散热路径有二路： 其一： LED的 PN结的 热量经过底座一敷铜层一铝基板一磁流体一散热罩一大气； 其二： LED 的 PN结的热量经过底座一敷铜层→铝基板一非磁流体一散热罩→大气。 The working principle of the magnetic fluid heat exchange LED lamp is: the magnetic fluid heat exchange LED lamp is provided with a magnetic fluid radiator and a controller, and the heat dissipation cover of the magnetic fluid radiator and the aluminum substrate of the LED form a sealed cavity, and the sealed cavity is filled There are magnetic fluids and non-magnetic fluids; the specific gravity of the magnetic fluid is smaller than the specific gravity of the non-magnetic fluid, the magnetic fluid is above the non-magnetic fluid, the non-magnetic fluid is in contact with the aluminum substrate, and the magnetic fluid is in contact with the heat sink; when working, the PN junction of the LED The heat is transferred to the aluminum substrate, and after the non-magnetic fluid absorbs the heat of the aluminum substrate, the controller controls the electromagnetic coil to be energized, and the electromagnetic coil generates a magnetic field to magnetize the magnetic fluid, so that the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid, and the non-magnetic fluid rises to a heat sink that transfers heat to the heat sink, the heat shield dissipates heat in the space; at the same time, the magnetic fluid drops to the aluminum substrate, Absorbing the heat of the aluminum substrate; after the magnetic fluid absorbs the heat of the aluminum substrate, the controller controls the electromagnetic coil to be de-energized, the magnetic field of the electromagnetic coil disappears, the specific gravity of the magnetic fluid returns to a state smaller than the specific gravity of the non-magnetic fluid, and the magnetic energy of the aluminum substrate is absorbed. The fluid rises to the heat sink, transferring heat to the heat sink, and the heat sink dissipates heat to the space. At the same time, the non-magnetic fluid after the heat sink is cooled down to the position of the aluminum substrate, so that it circulates continuously, using magnetic fluid and non-magnetic fluid Exchanging the position, dissipating the heat of the aluminum substrate; or, the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid, the magnetic fluid is below the non-magnetic fluid, the magnetic fluid is in contact with the aluminum substrate, and the non-magnetic fluid is in contact with the heat sink, and the control is utilized. The electromagnetic coil is continuously circulated and de-energized, generating a continuously alternating magnetic field, changing the specific gravity of the magnetic fluid, controlling the continuous exchange of the magnetic fluid and the non-magnetic fluid, and using the magnetic fluid and the non-magnetic fluid as the carrier of the heat. , continuously transfer the heat of the aluminum substrate to the heat sink to improve the heat dissipation effect of the LED. The heat dissipation path of the magnetic fluid heat exchange LED lamp has two paths: First, the heat of the PN junction of the LED passes through the base, a copper layer, an aluminum substrate, a magnetic fluid, a heat sink, and an atmosphere; and the second: the heat of the PN junction of the LED passes through The base is coated with a copper layer → an aluminum substrate, a non-magnetic fluid, a heat sink, and an atmosphere.
本发明的有益效果是： 磁流体热交换 LED灯设有磁流体散热器， 磁流 体散热器设有磁流体以及非磁流体， 利用控制器控制电磁线圈产生不断交 变的磁场， 使磁流体的比重发生不断变化， 使磁流体与非磁流体不断循环 交换位置， 以磁流体以及非磁流体作为热量的载体， 将 PN结的热量由铝 基板不断送到散热罩， 提高了 LED灯的散热效率。 附图说明  The beneficial effects of the invention are: the magnetic fluid heat exchange LED lamp is provided with a magnetic fluid radiator, the magnetic fluid radiator is provided with a magnetic fluid and a non-magnetic fluid, and the electromagnetic coil is controlled by the controller to generate a continuously alternating magnetic field, so that the magnetic fluid The specific gravity changes continuously, so that the magnetic fluid and the non-magnetic fluid continuously circulate and exchange positions, and the magnetic fluid and the non-magnetic fluid act as the carrier of the heat, and the heat of the PN junction is continuously sent from the aluminum substrate to the heat dissipation cover, thereby improving the heat dissipation efficiency of the LED lamp. . DRAWINGS
图 1是磁流体热交换 LED灯的结构示意图。 具体实施方式  Figure 1 is a schematic view showing the structure of a magnetic fluid heat exchange LED lamp. detailed description
下面结合附图对本发明进行进一歩的说明：  The present invention will be further described below in conjunction with the accompanying drawings:
图 1所示的磁流体热交换 LED灯的结构示意图， 磁流体热交换 LED灯 包括有 LED1、磁流体散热器 2以及控制器 3; LED1包括有 PN结 4、底座 5、 电极 6、 硅胶球 7、 阻悍层 8、 敷铜层 9、 绝缘层 10以及铝基板 11， PN结 4与底座 5连接， 底座 5与敷铜层 9连接， 敷铜层 9与绝缘层 10连接， 绝 缘层 10与铝基板 11连接； 磁流体散热器 2包括有散热罩 12、 磁流体 13、 非磁流体 14以及电磁线圈 15， 散热罩 12与铝基板 11密封连接构成一个 密封型腔 16， 磁流体 13以及非磁流体 14密封于密封型腔 16内， 散热罩 12设有螺旋散热片 17， 电磁线圈 15设于螺旋散热片 17上； 控制器 3包 括有 LED电源 18以及脉冲电源发生器 19， LED电源 18与电极 6连接， 脉 冲电源发生器 19与电磁线圈 15连接； 磁流体 13与非磁流体 14的比重不 同， 磁流体的比重小于非磁流体的比重， 或者， 非磁流体的比重小于磁流 体的比重； 磁流体 13与非磁流体 14为互不相容的液体。 1 is a schematic structural view of a magnetic fluid heat exchange LED lamp, the magnetic fluid heat exchange LED lamp includes an LED 1, a magnetic fluid heat sink 2, and a controller 3; the LED 1 includes a PN junction 4, a base 5, an electrode 6, and a silica gel ball. 7. The barrier layer 8, the copper-clad layer 9, the insulating layer 10, and the aluminum substrate 11, the PN junction 4 is connected to the base 5, the base 5 is connected to the copper-clad layer 9, and the copper-clad layer 9 is connected to the insulating layer 10, and the insulating layer 10 The magnetic fluid heat sink 2 includes a heat dissipation cover 12, a magnetic fluid 13, a non-magnetic fluid 14, and an electromagnetic coil 15. The heat dissipation cover 12 is sealingly connected with the aluminum substrate 11 to form a sealed cavity 16, a magnetic fluid 13 and The non-magnetic fluid 14 is sealed in the sealed cavity 16, the heat shield 12 is provided with a spiral heat sink 17, and the electromagnetic coil 15 is disposed on the spiral heat sink 17. The controller 3 includes an LED power source 18 and a pulse power generator 19, and the LED power source 18 is connected to the electrode 6, the pulse power generator 19 and the electromagnetic coil. 15 connection; the specific gravity of the magnetic fluid 13 and the non-magnetic fluid 14 is different, the specific gravity of the magnetic fluid is smaller than the specific gravity of the non-magnetic fluid, or the specific gravity of the non-magnetic fluid is smaller than the specific gravity of the magnetic fluid; the magnetic fluid 13 and the non-magnetic fluid 14 are not mutually Compatible liquid.
为了散热罩 12与 LED1的密封连接， 散热罩 12包括有散热筒 20以及 密封盖 21， 密封盖 21与散热筒 20密封连接， 密封盖 21与散热筒 20之间 设有密封环 22， 散热筒 20与铝基板 11密封连接， 散热筒 20与 LED1的铝 基板 1 1之间设有导热的密封垫 23， 密封盖 21设有第一散热片 24。  The heat shield 12 includes a heat sink 20 and a sealing cover 21, and the sealing cover 21 is sealingly connected to the heat sink 20. A sealing ring 22 is disposed between the sealing cover 21 and the heat sink 20, and the heat sink is provided. 20 is sealingly connected to the aluminum substrate 11, and a heat-radiating gasket 23 is disposed between the heat-dissipating cylinder 20 and the aluminum substrate 11 of the LED 1, and the sealing cover 21 is provided with a first heat sink 24.
为了加强散热罩 12的散热效果， 其特征在于： 所述的密封盖 21的第 一散热片 24内设有散热型腔 25， 散热型腔 25内设有磁流体 13或者非磁 流体 14; 散热罩 12连接有外壳 26， 控制器 3设于外壳 3内， 外壳 3设有 通风孔 27， LED1与外壳 26固定连接； 外壳 26设有第二散热片 28。  In order to enhance the heat dissipation effect of the heat dissipation cover 12, the first heat dissipation fin 24 of the sealing cover 21 is provided with a heat dissipation cavity 25, and the heat dissipation cavity 25 is provided with a magnetic fluid 13 or a non-magnetic fluid 14; The cover 12 is connected to the outer casing 26, and the controller 3 is disposed in the outer casing 3. The outer casing 3 is provided with a venting hole 27, and the LED 1 is fixedly connected to the outer casing 26; the outer casing 26 is provided with a second heat sink 28.
为了降低磁流体 13的成本， 磁流体 13的容积小于非磁流体 14的容 积； 密封型腔 16内充满磁流体 13以及非磁流体 14， 磁流体 13的容积加 上非磁流体 14的容积与密封型腔 16的容积相等。  In order to reduce the cost of the magnetic fluid 13, the volume of the magnetic fluid 13 is smaller than the volume of the non-magnetic fluid 14; the sealed cavity 16 is filled with the magnetic fluid 13 and the non-magnetic fluid 14, the volume of the magnetic fluid 13 plus the volume of the non-magnetic fluid 14 The sealed cavities 16 have the same volume.
为了提高电磁线圈 15的磁场强度， 散热筒 20内设有内套筒 29， 内套 筒 29与散热筒 20过盈配合， 内套筒 29有铁磁材料构成。  In order to increase the magnetic field strength of the electromagnetic coil 15, an inner sleeve 29 is disposed in the heat sink 20, and the inner sleeve 29 is interference-fitted with the heat sink 20, and the inner sleeve 29 is made of a ferromagnetic material.

Claims

权 利 要 求 书 Claim
1.磁流体热交换 LED灯， 其特征在于： 所述的磁流体热交换 LED灯包 括有 LED (1)、 磁流体散热器 （2) 以及控制器 （3); LED (1) 包括有 PN 结 （4)、 底座 （5)、 电极 （6)、 硅胶球 （7)、 阻悍层 （8)、 敷铜层 （9)、 绝缘层 （10) 以及铝基板 （11)， PN结 （4) 与底座 （5) 连接， 底座 （5) 与敷铜层 （9) 连接， 敷铜层 （9) 与绝缘层 （10) 连接， 绝缘层 （10) 与 铝基板（11)连接； 磁流体散热器（2)包括有散热罩（12)、磁流体（13)、 非磁流体 （14) 以及电磁线圈 （15)， 散热罩 （12) 与铝基板 （11) 密封 连接构成一个密封型腔 （16)， 磁流体 （13) 以及非磁流体 （14) 密封于 密封型腔 （16) 内， 散热罩 （12) 设有螺旋散热片 （17)， 电磁线圈 （15) 设于螺旋散热片 （17) 上； 控制器 （3) 包括有 LED 电源 （18) 以及脉冲 电源发生器（19)， LED电源（18)与电极（6)连接， 脉冲电源发生器（19) 与电磁线圈 （15) 连接； 磁流体 （13) 与非磁流体 （14) 的比重不同， 磁 流体 （13) 与非磁流体 （14) 为互不相容的液体。 A magnetic fluid heat exchange LED lamp, characterized in that: the magnetic fluid heat exchange LED lamp comprises an LED (1), a magnetic fluid heat sink (2) and a controller (3); the LED (1) comprises a PN Junction (4), base (5), electrode (6), silica gel ball (7), barrier layer (8), copper layer (9), insulating layer (10), and aluminum substrate (11), PN junction ( 4) connected to the base (5), the base (5) is connected to the copper layer (9), the copper layer (9) is connected to the insulating layer (10), and the insulating layer (10) is connected to the aluminum substrate (11); The fluid radiator (2) comprises a heat sink (12), a magnetic fluid (13), a non-magnetic fluid (14) and an electromagnetic coil (15), and the heat shield (12) is sealingly connected with the aluminum substrate (11) to form a sealed type. The cavity (16), the magnetic fluid (13) and the non-magnetic fluid (14) are sealed in the sealed cavity (16), the heat sink (12) is provided with a spiral heat sink (17), and the electromagnetic coil (15) is arranged in the spiral heat dissipation On the chip (17); the controller (3) includes an LED power supply (18) and a pulse power generator (19), and the LED power supply (18) is connected to the electrode (6). The pulse power generator (19) is connected to the electromagnetic coil (15); the magnetic fluid (13) and the non-magnetic fluid (14) have different specific gravity, and the magnetic fluid (13) and the non-magnetic fluid (14) are mutually incompatible liquids. .
2.根据权利要求 1所述的磁流体热交换 LED灯， 其特征在于： 所述 的散热罩 （12) 包括有散热筒 （20) 以及密封盖 （21)， 密封盖 （21) 与 散热筒（20)密封连接，密封盖（21)与散热筒（20)之间设有密封环（22)， 散热筒 （20) 与铝基板（11) 密封连接， 散热筒 （20) 与 LED (1) 的铝基 板（11)之间设有导热的密封垫（23)，密封盖（21)设有第一散热片（24)。  The magnetic fluid heat exchange LED lamp according to claim 1, wherein: the heat dissipation cover (12) comprises a heat dissipation tube (20) and a sealing cover (21), a sealing cover (21) and a heat dissipation tube (20) Sealed connection, a sealing ring (22) is provided between the sealing cover (21) and the heat sink (20), the heat sink (20) is sealedly connected with the aluminum substrate (11), and the heat sink (20) and the LED (1) A thermally conductive gasket (23) is disposed between the aluminum substrates (11), and the sealing cover (21) is provided with a first heat sink (24).
3.根据权利要求 2所述的磁流体热交换 LED灯， 其特征在于： 所述的 密封盖 （21) 的第一散热片 （24) 内设有散热型腔 （25)， 散热型腔 （25) 内设有磁流体 （13) 或者非磁流体 （14)。  The magnetic fluid heat exchange LED lamp according to claim 2, wherein: the first heat sink (24) of the sealing cover (21) is provided with a heat dissipation cavity (25), and a heat dissipation cavity ( 25) Magnetic fluid (13) or non-magnetic fluid (14) is provided inside.
4.根据权利要求 3所述的磁流体热交换 LED灯， 其特征在于： 所述的 散热罩（12)连接有外壳（26)， 控制器（3) 设于外壳（3) 内， 外壳（3) 设有通风孔 （27)， LED (1) 与外壳 (26) 固定连接。  The magnetic fluid heat exchange LED lamp according to claim 3, wherein: the heat dissipation cover (12) is connected to the outer casing (26), and the controller (3) is disposed in the outer casing (3), and the outer casing ( 3) Ventilation holes (27) are provided, and the LEDs (1) are fixedly connected to the outer casing (26).
5.根据权利要求 4所述的磁流体热交换 LED灯， 其特征在于： 所述的 外壳 （26) 设有第二散热片 （28)。  The magnetic fluid heat exchange LED lamp according to claim 4, characterized in that: the outer casing (26) is provided with a second heat sink (28).
6.根据权利要求 1所述的磁流体热交换 LED灯， 其特征在于： 所述的 磁流体 （13) 的容积小于非磁流体 （14) 的容积； 密封型腔 （16) 内充满 磁流体（13) 以及非磁流体（14)， 磁流体（13)的容积加上非磁流体（14) 的容积与密封型腔 （16 ) 的容积相等。 The magnetic fluid heat exchange LED lamp according to claim 1, wherein: the volume of the magnetic fluid (13) is smaller than the volume of the non-magnetic fluid (14); and the sealed cavity (16) is filled with the magnetic fluid (13) and non-magnetic fluid (14), volume of magnetic fluid (13) plus non-magnetic fluid (14) The volume is equal to the volume of the sealed cavity (16).
7.根据权利要求 5所述的磁流体热交换 LED灯， 其特征在于： 所述的 散热筒 （20 ) 内设有内套筒 （29 )， 内套筒 （29 ) 与散热筒 （20 ) 过盈配 合， 内套筒 （29 ) 有铁磁材料构成。  The magnetic fluid heat exchange LED lamp according to claim 5, wherein: the heat dissipation tube (20) is provided with an inner sleeve (29), an inner sleeve (29) and a heat dissipation tube (20) The interference fit, the inner sleeve (29) is made of ferromagnetic material.
8.根据权利要求 7所述的磁流体热交换 LED灯， 其特征在于： 所述的 的磁流体的比重小于非磁流体的比重； 或者， 非磁流体的比重小于磁流体 的比重。  The magnetic fluid heat exchange LED lamp according to claim 7, wherein: the magnetic fluid has a specific gravity smaller than a specific gravity of the non-magnetic fluid; or the non-magnetic fluid has a specific gravity smaller than a specific gravity of the magnetic fluid.
9.一种根据权利要求 8所述的磁流体热交换 LED灯的散热原理， 其特 征在于： 所述的磁流体热交换 LED灯的散热原理是： 磁流体热交换 LED灯 设有磁流体散热器以及控制器， 磁流体散热器的散热罩与 LED的铝基板构 成一个密封型腔， 密封型腔内充满有磁流体以及非磁流体； 磁流体的比重 小于非磁流体的比重，磁流体在非磁流体的上方，非磁流体与铝基板接触， 磁流体与散热罩接触； 工作时， LED的 PN结将热量传递到铝基板， 非磁流 体吸收铝基板的热量后， 控制器控制电磁线圈通电， 电磁线圈产生磁场将 磁流体磁化， 使磁流体的比重大于非磁流体的比重， 非磁流体上升到散热 罩， 将热量传递给散热罩， 散热罩将热量散发于空间； 同时， 磁流体下降 到铝基板， 吸收铝基板的热量； 磁流体吸收铝基板的热量后， 控制器控制 电磁线圈断电， 电磁线圈的磁场消失， 磁流体的比重恢复到小于非磁流体 比重的状态， 吸收了铝基板热量的磁流体上升到散热罩， 将热量传递给散 热罩， 散热罩将热量散发于空间； 同时， 经散热罩散热后的非磁流体下降 到铝基板的位置， 如此不断循环， 利用磁流体与非磁流体交换位置， 将铝 基板的热量散发出去； 或者， 磁流体的比重大于非磁流体的比重， 磁流体 在非磁流体的下方， 磁流体与铝基板接触， 非磁流体与散热罩接触， 利用 控制器控制电磁线圈不断循环通电以及断电， 产生不断交变的磁场， 使磁 流体的比重不断发生变化， 控制磁流体与非磁流体不断循环交换位置， 以 磁流体以及非磁流体作为热量的载体， 不断将铝基板的热量传送到散热 罩， 提高 LED的散热效果。  9. The heat dissipation principle of a magnetic fluid heat exchange LED lamp according to claim 8, wherein: the heat dissipation principle of the magnetic fluid heat exchange LED lamp is: the magnetic fluid heat exchange LED lamp is provided with magnetic fluid heat dissipation And the controller, the heat sink of the magnetic fluid radiator and the aluminum substrate of the LED form a sealed cavity, the sealed cavity is filled with magnetic fluid and non-magnetic fluid; the specific gravity of the magnetic fluid is smaller than the specific gravity of the non-magnetic fluid, and the magnetic fluid is Above the non-magnetic fluid, the non-magnetic fluid is in contact with the aluminum substrate, and the magnetic fluid is in contact with the heat-dissipating cover; when working, the PN junction of the LED transfers heat to the aluminum substrate, and after the non-magnetic fluid absorbs the heat of the aluminum substrate, the controller controls the electromagnetic coil When energized, the electromagnetic coil generates a magnetic field to magnetize the magnetic fluid, so that the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid, the non-magnetic fluid rises to the heat dissipation cover, and the heat is transferred to the heat dissipation cover, and the heat dissipation cover radiates heat in the space; meanwhile, the magnetic fluid Dropped to the aluminum substrate, absorbing the heat of the aluminum substrate; after the magnetic fluid absorbs the heat of the aluminum substrate, the controller controls the electromagnetic coil to be powered off, The magnetic field of the coil disappears, the specific gravity of the magnetic fluid returns to a state smaller than the specific gravity of the non-magnetic fluid, the magnetic fluid that absorbs the heat of the aluminum substrate rises to the heat dissipation cover, transfers heat to the heat dissipation cover, and the heat dissipation cover dissipates heat in the space; The non-magnetic fluid after the heat sink is cooled down to the position of the aluminum substrate, so that the heat is dissipated by exchanging the position of the magnetic fluid and the non-magnetic fluid; or the specific gravity of the magnetic fluid is greater than the specific gravity of the non-magnetic fluid. The magnetic fluid is under the non-magnetic fluid, the magnetic fluid is in contact with the aluminum substrate, and the non-magnetic fluid is in contact with the heat-dissipating cover. The controller is used to control the electromagnetic coil to continuously circulate and de-energize, generating a continuously alternating magnetic field, so that the proportion of the magnetic fluid is constant. Changes occur, controlling the continuous exchange of magnetic fluid and non-magnetic fluid, using magnetic fluid and non-magnetic fluid as the carrier of heat, continuously transferring the heat of the aluminum substrate to the heat sink to improve the heat dissipation effect of the LED.
10.根据权利要求 9所述的磁流体热交换 LED灯的散热原理， 其特征 在于： 所述的磁流体热交换 LED灯的散热路径有二路： 其一： LED的 PN结 的热量经过底座一敷铜层一铝基板一磁流体一散热罩一大气； 其二： LED 的 PN结的热量经过底座一敷铜层一铝基板一非磁流体一散热罩一大气。  10 . The heat dissipation principle of the magnetic fluid heat exchange LED lamp according to claim 9 , wherein: the heat dissipation path of the magnetic fluid heat exchange LED lamp has two paths: one: the heat of the PN junction of the LED passes through the base A copper layer-aluminum substrate-a magnetic fluid has a heat-dissipating cover and an atmosphere; second: the heat of the PN junction of the LED passes through the base, a copper layer, an aluminum substrate, a non-magnetic fluid, and a heat-dissipating cover.
PCT/CN2013/084939 2013-03-18 2013-10-10 Magnetic fluid heat exchange led lamp WO2014146421A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201380030743.7A CN104379986B (en) 2013-03-18 2013-10-10 Magnetic fluid heat exchange LED

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310114337.0 2013-03-18
CN2013101143370A CN103196059A (en) 2013-03-18 2013-03-18 Magnetic fluid heat exchange LED (light emitting diode) lamp

Publications (1)

Publication Number Publication Date
WO2014146421A1 true WO2014146421A1 (en) 2014-09-25

Family

ID=48718782

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2013/084939 WO2014146421A1 (en) 2013-03-18 2013-10-10 Magnetic fluid heat exchange led lamp

Country Status (2)

Country Link
CN (2) CN103196059A (en)
WO (1) WO2014146421A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103196059A (en) * 2013-03-18 2013-07-10 林智勇 Magnetic fluid heat exchange LED (light emitting diode) lamp
CN109479730B (en) * 2018-11-21 2021-08-31 嘉禾县生元生态农业发展有限公司 Energy-concerving and environment-protective animal husbandry breeding circle
CN110290679B (en) * 2019-06-27 2021-02-19 厦门天马微电子有限公司 Water-cooling display module
CN112178501B (en) * 2020-09-28 2021-06-18 江西旺来科技有限公司 Heat dissipation type LED lamp based on magnetofluid motion
CN112367806B (en) * 2020-10-28 2022-03-29 武汉第二船舶设计研究所(中国船舶重工集团公司第七一九研究所) Resistance-reducing type micro-thin channel liquid cooling radiator
CN113690206B (en) * 2021-09-03 2023-11-28 中科芯(苏州)微电子科技有限公司 Integrated magnetic fluid heat dissipation chip device

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101457918A (en) * 2008-12-25 2009-06-17 英飞特电子（杭州）有限公司 Liquid cooling LED lamp
CN201273550Y (en) * 2008-08-25 2009-07-15 朱建钦 Magnetofluid LED lamp
CN101986001A (en) * 2009-07-28 2011-03-16 富准精密工业(深圳)有限公司 Light-emitting diode (LED) lamp
CN102128437A (en) * 2011-02-07 2011-07-20 林智勇 LED (light-emitting diode) magnetic fluid radiating device
CN102128436A (en) * 2011-02-07 2011-07-20 林智勇 Magnetic fluid LED radiating device
CN102162589A (en) * 2011-02-07 2011-08-24 林智勇 Magnetic fluid radiating led
CN202056685U (en) * 2011-04-30 2011-11-30 林莎莎 Tubular radiating LED (Light Emitting Diode) street lamp
CN202109308U (en) * 2011-04-30 2012-01-11 林莎莎 Magnetofluid heat radiation LED project lamp
CN202177080U (en) * 2011-08-16 2012-03-28 河南新思维光电科技有限公司 LED (light-emitting diode) lamp device applying silicon-urethane foaming and radiating materials
CN202188377U (en) * 2011-04-30 2012-04-11 林莎莎 Magnetic fluid heat dissipation LED (light-emitting diode) floor lamp
CN103196059A (en) * 2013-03-18 2013-07-10 林智勇 Magnetic fluid heat exchange LED (light emitting diode) lamp
CN203190134U (en) * 2013-03-18 2013-09-11 林智勇 Magnetic fluid heat exchange light-emitting diode (LED) lamp

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI369466B (en) * 2009-07-14 2012-08-01 Ind Tech Res Inst Fluid whirl lighting apparatus

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201273550Y (en) * 2008-08-25 2009-07-15 朱建钦 Magnetofluid LED lamp
CN101457918A (en) * 2008-12-25 2009-06-17 英飞特电子（杭州）有限公司 Liquid cooling LED lamp
CN101986001A (en) * 2009-07-28 2011-03-16 富准精密工业(深圳)有限公司 Light-emitting diode (LED) lamp
CN102128437A (en) * 2011-02-07 2011-07-20 林智勇 LED (light-emitting diode) magnetic fluid radiating device
CN102128436A (en) * 2011-02-07 2011-07-20 林智勇 Magnetic fluid LED radiating device
CN102162589A (en) * 2011-02-07 2011-08-24 林智勇 Magnetic fluid radiating led
CN202056685U (en) * 2011-04-30 2011-11-30 林莎莎 Tubular radiating LED (Light Emitting Diode) street lamp
CN202109308U (en) * 2011-04-30 2012-01-11 林莎莎 Magnetofluid heat radiation LED project lamp
CN202188377U (en) * 2011-04-30 2012-04-11 林莎莎 Magnetic fluid heat dissipation LED (light-emitting diode) floor lamp
CN202177080U (en) * 2011-08-16 2012-03-28 河南新思维光电科技有限公司 LED (light-emitting diode) lamp device applying silicon-urethane foaming and radiating materials
CN103196059A (en) * 2013-03-18 2013-07-10 林智勇 Magnetic fluid heat exchange LED (light emitting diode) lamp
CN203190134U (en) * 2013-03-18 2013-09-11 林智勇 Magnetic fluid heat exchange light-emitting diode (LED) lamp

Also Published As

Publication number Publication date
CN103196059A (en) 2013-07-10
CN104379986B (en) 2016-11-02
CN104379986A (en) 2015-02-25

Similar Documents

Publication Publication Date Title
WO2014146421A1 (en) Magnetic fluid heat exchange led lamp
CN201273550Y (en) Magnetofluid LED lamp
CN105263295A (en) Micro channel radiator
CN202521560U (en) Light-emitting diode (LED) luminaire radiator
CN205535100U (en) LED lamps and lanterns based on liquid metal heat dissipation
WO2014146436A1 (en) Grease radiating led lamp
CN103925575A (en) Heat-tube type LED lamp
CN103438411B (en) A kind of LED radiator
CN203099763U (en) Magnetocaloric effect efficient heat dissipation combined system
CN203628573U (en) Heat radiation device of LED (light emitting diode) encapsulation structure
WO2014146437A1 (en) High-power liquid radiating led lamp
CN203190134U (en) Magnetic fluid heat exchange light-emitting diode (LED) lamp
CN203560754U (en) LED bulb lamp
CN106051486A (en) High-power LED lamp heat dissipation device based on graphene heat rectification material and lamp
CN105135390B (en) Radiator
CN203010559U (en) Cooling system suitable for high-power light emitting diode (LED) lighting fitting
CN108240569A (en) Energy-saving LED fluorescent lamp
CN102767714A (en) Radiating structure of LED lamp
WO2014048049A1 (en) Integrated led lamp with built-in glue heat dissipation system
CN103836386A (en) Lamp and cooling device thereof
CN202188377U (en) Magnetic fluid heat dissipation LED (light-emitting diode) floor lamp
CN203478156U (en) LED radiator
KR101439864B1 (en) Lighting apparatus having cooling function
CN212584765U (en) Explosion-proof lamp body structure for enhancing heat dissipation by utilizing passive technology
CN102563583A (en) Radiating structure

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13878690

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 23/02/2016)

122 Ep: pct application non-entry in european phase

Ref document number: 13878690

Country of ref document: EP

Kind code of ref document: A1