CN103095183B - 磁热发电机 - Google Patents

磁热发电机 Download PDF

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Publication number
CN103095183B
CN103095183B CN201210419622.9A CN201210419622A CN103095183B CN 103095183 B CN103095183 B CN 103095183B CN 201210419622 A CN201210419622 A CN 201210419622A CN 103095183 B CN103095183 B CN 103095183B
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magnetic
electric generator
thermal electric
cold
circuit unit
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Expired - Fee Related
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CN201210419622.9A
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CN103095183A (zh
Inventor
郭钟荣
毛之成
谢昇汎
林铭赐
萧辅洲
史承彦
徐懋仁
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Delta Optoelectronics Inc
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Delta Optoelectronics Inc
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N10/00—Electric motors using thermal effects
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N15/00—Thermoelectric devices without a junction of dissimilar materials; Thermomagnetic devices, e.g. using the Nernst-Ettingshausen effect
    • H10N15/20—Thermomagnetic devices using thermal change of the magnetic permeability, e.g. working above and below the Curie point
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
    • F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B71/00—Free-piston engines; Engines without rotary main shaft
    • F02B71/04—Adaptations of such engines for special use; Combinations of such engines with apparatus driven thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1853—Rotary generators driven by intermittent forces
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/06—Volume compression or expansion in amplifiers having semiconductor devices
    • H03G7/08—Volume compression or expansion in amplifiers having semiconductor devices incorporating negative feedback

Landscapes

  • Water Treatment By Electricity Or Magnetism (AREA)
  • General Induction Heating (AREA)

Abstract

本发明提供一种磁热发电机，包括一切换阀、多个磁路单元、一线圈以及多个入口管。前述入口管连接磁路单元与切换阀，且每个磁路单元包括一磁热构件。切换阀以一预设的频率反复地切换，用以导引冷、热流体至磁路单元，使磁热构件被冷流体冷却而磁化，或被热流体加热而去磁化。线圈与至少一磁路单元耦合，用以产生一感应电压。本发明由于冷、热流体可被同时且持续地使用，因此可有效改善流体的利用率，并可提升磁热发电机的效能。

Description

磁热发电机
技术领域
本发明有关于一种磁热发电机，特别有关于一种使用冷、热流体用以产生电能的磁热发电机。
背景技术
磁热发电机为一种可将热能转变为电能的装置。前述磁热发电机是利用磁热材料的磁性及磁热性质，在磁热材料的磁相转变温度(例如居里温度)附近快速地切换磁热材料的温度。磁热材料通常设置于一磁路之内，一线圈或谐振电路可设置于磁路附近，用以产生一感应电压。
一温度改变装置通常设置于磁热发电机之内，用以改变磁热材料的温度。前述温度改变装置通过过单独的管路供应冷、热流体来改变磁热材料的温度，并使其温度高于或低于前述磁相转变温度。通过快速改变温度并使其高于或低于前述磁相转变温度，可让磁热材料产生磁化或去磁化，并改变磁路的磁阻。因此，线圈可对于磁路的磁场变化而产生一相对应的感应电压。一典型的磁热发电机配置可参考SolomonDan于期刊《应用物理快报》(JournalofAppliedPhysics)(1988)第63卷，议题3，第915-921页的现有技术“通过磁场循环改进磁热发电机的性能(Improvingtheperformanceofathermomagneticgeneratorbycyclingthemagneticfield)”。
传统的磁热发电机中的冷、热流体被单独的切换阀所控制。当其中一管路被连通至磁路时，另一管路则被关闭。因此，由于冷、热流体无法被同时且持续地使用，流体的利用率以及磁热发电机的效能较低。
发明内容
本发明的目的在于提供一种磁热发电机，以解决现有技术中磁热发电机中流体的利用率以及磁热发电机的效能较低的技术问题。
本发明提供一种磁热发电机包括一切换阀、多个磁路单元、一线圈以及多个入口管。前述入口管连接磁路单元与切换阀，且每个磁路单元包括一磁热构件。切换阀以一预设的频率反复地切换，用以导引冷流体或热流体至磁路单元，使磁热构件被冷流体冷却而磁化，或被热流体加热而去磁化。线圈与至少一磁路单元耦合，用以产生一感应电压。
在本发明中，由于冷、热流体可被同时且持续地使用，因此可有效改善流体的利用率，并可提升磁热发电机的效能。
附图说明
图1表示本发明一实施例的磁热发电机示意图；
图2表示本发明一实施例的磁路单元、入口管以及出口管示意图；
图3表示本发明一实施例的磁路单元、入口管以及出口管侧视图；以及
图4表示本发明另一实施例的磁热发电机示意图。
其中，附图标记说明如下：
磁路单元10
磁轭11
永久磁铁12
管状件13
磁热构件14
切换阀20
入口管21
出口管22
冷流源C
冷流管C1
热流源H
热流管H1
空间S
具体实施方式
图1描绘本发明一实施例的磁热发电机，包括一热流源H、一热流管H1、一冷流源C、一冷流管C1、一切换阀20、两个入口管21、两个并排设置的磁路单元10以及两个出口管22。如图1所示，冷、热流管C1、H1分别由冷、热流源C、H延伸至切换阀20。此外，两个入口管21分别由切换阀20延伸至两个磁路单元10。
于本实施例中，冷、热流体分别由冷、热流源C、H经由冷、热流管C1、H1被持续地送至切换阀20。在操作的过程中，切换阀20可于一短期间内分别连通热流管H1至左侧的入口管21，并连通冷流管C1至另一右侧的入口管21。随后，切换阀20即反向地切换，使热流管H1于一短期间内连通右侧的入口管21，并使冷流管C1连通左侧的入口管21。通过将切换阀20以一预设的频率反复地切换，与磁路单元10耦合的一线圈或谐振电路即可产生一感应交流电压。
请参阅图2、3，前述冷、热流体分别经由入口管21被送至磁路单元10，再经由出口管22排出。于图3中，每一磁路单元10包括两个磁轭11、两个永久磁铁12以及一中空的管状件13。其中，永久磁铁12设置于磁轭11之间并与其抵接，管状件13设置于磁轭11之间，使入口管21可通过管状件13连通出口管22。冷、热流体可被导引并依序经过入口管21及管状件13，再经由出口管22排出。应了解的是，由钆(Gd)、钆合金或其它磁热材料(magneto-caloricmaterial,MCM)所构成的一磁热构件14设置于管状件13之内。于一些实施例中，磁热构件14可具有能让流体穿过的多孔结构。于本实施例中，当冷流体流经管状件13时，磁热构件14被冷却并磁化；当热流体流经管状件13时，磁热构件14则被加热并去磁化。通过反复地实行前述加热及冷却的流程，磁热构件14的磁场变化即以一预设的频率循环。如此一来，设置于磁路单元10中的空间S的线圈或谐振电路可产生一感应交流电压。
于一些实施例中，冷、热流体可经由对应的入口管21通过两个或多个磁路单元10。前述冷、热流体可为工厂产生的工业废水。由于冷、热流体可被同时且持续地使用，使流体可被有效的利用。换言之，穿过磁路单元10的冷、热流体可被同时且持续地使用，用以产生电能。
于另一实施例的磁热发电机包括两个以上的磁路单元10。如图4所示，三个入口管21以及三个出口管22分别连接三个磁路单元10。其中，三个入口管21可被一切换阀(未图示)所控制，用以选择性地供应冷、热流体至磁路单元10，且流体可经由出口管22排出，并由一流体处理系统所回收。于一些实施例中，磁热发电机更可使用四个或四个以上的磁路单元10，其中冷、热流体可依一预设的频率被导引穿过磁路单元10，用以产生电能。由于冷、热流体可被同时且持续地使用，因此可有效改善流体的利用率，并可提升磁热发电机的效能。
虽然本发明以前述的实施例揭露如上，然其并非用以限定本发明。本发明所属技术领域中具有通常知识者，在不脱离本发明的精神和范围内，当可做些许的更动与润饰。因此本发明的保护范围当视后附的权利要求范围所界定者为准。

Claims (10)

1.一种磁热发电机，其特征在于，包括：
一个切换阀；
一个热流源；
一根热流管，连接该热流源与该切换阀，其中一热流体经由该热流管被送至该切换阀；
一个冷流源；
一根冷流管，连接该冷流源与该切换阀，其中一冷流体经由该冷流管被送至该切换阀；
多个磁路单元，每一该磁路单元包括一磁热构件；
多个入口管，分别连接所述多个磁路单元与该切换阀，其中该切换阀反复地以一预设频率切换，用以导引该冷流体或热流体经由所述入口管至所述磁路单元，其中所述磁热构件通过该冷、热流体而交替地磁化及去磁化；以及
一线圈，与所述磁路单元的至少其中之一耦合以得到一感应电压。
2.如权利要求1所述的磁热发电机，其特征在于，每一该磁路单元还包括两个磁轭及一管状件，该管状件设置于所述两个磁轭之间以导引该冷、热流体。
3.如权利要求2所述的磁热发电机，其特征在于，该磁热构件设置于该管状件之内。
4.如权利要求2所述的磁热发电机，其特征在于，每一该磁路单元还包括两个永久磁铁，设置于所述两个磁轭之间并抵接所述两个磁轭。
5.如权利要求2所述的磁热发电机，其特征在于，所述管状件与所述入口管相连通。
6.如权利要求2所述的磁热发电机，其特征在于，该磁热构件包括钆、钆合金。
7.如权利要求2所述的磁热发电机，其特征在于，该磁热构件具有一多孔结构。
8.如权利要求1所述的磁热发电机，其特征在于，所述多个磁路单元并排设置。
9.如权利要求1所述的磁热发电机，其特征在于，该磁热发电机还包括多个出口管，分别连接所述多个磁路单元，用以排出该冷、热流体。
10.如权利要求1所述的磁热发电机，其特征在于，该冷、热流体包括水。
CN201210419622.9A 2011-10-28 2012-10-29 磁热发电机 Expired - Fee Related CN103095183B (zh)

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US13/284,612 US8729718B2 (en) 2011-10-28 2011-10-28 Thermomagnetic generator

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