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CN1332500C - 小型二极单相发电机 - Google Patents

小型二极单相发电机 Download PDF

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CN1332500C
CN1332500C CNB2005100203806A CN200510020380A CN1332500C CN 1332500 C CN1332500 C CN 1332500C CN B2005100203806 A CNB2005100203806 A CN B2005100203806A CN 200510020380 A CN200510020380 A CN 200510020380A CN 1332500 C CN1332500 C CN 1332500C
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stator
iron core
damping
winding
rotor
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CN1665105A (zh
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艾纯
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Jiangsu Senci Electric Machinery Co ltd
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Priority to AT05792069T priority patent/ATE535986T1/de
Priority to US11/575,926 priority patent/US20070262661A1/en
Priority to EP05792069A priority patent/EP1879282B1/en
Priority to CA002596936A priority patent/CA2596936A1/en
Priority to AU2005326424A priority patent/AU2005326424B2/en
Priority to PCT/CN2005/001561 priority patent/WO2006081723A1/zh
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/18—Windings for salient poles
    • H02K3/20—Windings for salient poles for auxiliary purposes, e.g. damping or commutating
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/18—Synchronous generators having windings each turn of which co-operates only with poles of one polarity, e.g. homopolar generators

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Windings For Motors And Generators (AREA)
  • Iron Core Of Rotating Electric Machines (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

本发明提供了一种小型二极单相发电机，由转子(1)及定子组成，转子(1)的铁芯上设有两套阻尼绕组，每套阻尼绕组由阻尼条(3)和阻尼板(4)组成，阻尼板(4)设置在铁芯两端面上，阻尼条(3)轴向穿过铁芯后两端可靠连接在阻尼板(4)上；定子上的绕组线圈为等距式二极绕组结构。转子(1)铁芯上的绕线槽(1a)与定子铁芯上的嵌线槽成3°～15°夹角。定子铁芯外表面分布有轴向的沟槽。本发明输出电压稳定，波形好，更接近正弦波，对容性负载的适应性更强，有利于用电器具寿命的延长，因而电机的适用范围更广泛。

Description

小型二极单相发电机
技术领域
本发明涉及一种发电机，尤其是小型二极单相发电机。
背景技术
目前，市场上小型二极单相发电机(0.45KW～18KW)的转子绕线槽和定子嵌线槽均为直槽结构，即转子绕线槽和定子嵌线槽的中心线均平行于发电机的轴心线，因此转子线圈与嵌在定子铁心中的输出绕组之间没有夹角，发电机在工作时，3、5及7等奇次谐波对输出电压波形的影响很大，使输出电压波形很差，呈锯齿状，波形正弦畸变率通常在15％～25％之间，波形中的谐波份量很重，因而对用电器具，特别是对容性负载的冲击很大，造成用电器具的提前损坏，使该类型电机的应用范围受到一定的限制。
发明内容
本发明的目的是提供一种小型二极单相发电机，解决现有小型二极单相发电机的输出电压波形差，波形正弦畸变率高，使用范围很有限的问题。
为解决上述问题，本发明所述的小型二极单相发电机，包括转子及定子，转子的铁芯上设有两套阻尼绕组，每套阻尼绕组由阻尼条和阻尼板组成，阻尼板设置在铁芯两端面上，阻尼条轴向穿过铁芯后两端可靠连接在阻尼板上；定子上的绕组线圈为等距式二极绕组结构。
上述转子铁芯上每套阻尼绕组中的阻尼条最好为4～8条，阻尼条的横截面为圆形且直径在2～8mm之间为最佳，及阻尼板的厚度最好为1～8mm。
上述转子铁芯上的绕线槽与定子铁芯上的嵌线槽最好成3°～15°夹角。
上述定子铁芯外表面最好分布有轴向的沟槽。
本发明中因输出电压波形受磁力分布状态影响，在转子铁心上加装两套阻尼绕组后，使转子磁力线的分布状态达到最佳，削弱定子输出绕组产生的负序磁场对波形的影响，并可降低转子的交、直阻抗，使转子的磁滞涡流损耗减小，温升降低，从而达到改善磁路，改良输出波形之目的。而绕组线圈采用等距式二极绕组结构，可使定子轭部的磁场更均匀，主输出绕组在定子圆周上所形成的磁场呈正弦分布，削弱了3、5及7次谐波对输出电压波形的影响，从而使输出电压波形在空载和负载时均更接近正弦波，其波形畸变率与传统小型二极单相发电机比较如下：
Figure C20051002038000041
从上表可看出：在保证其它输出性能的基础上，发电机的输出电压波形正弦畸变率可控制在5％以内，极大地改善了输出电压波形，使小型二极单相发电机的应用范围更广泛，对容性负载的适应性大大增强。
本发明的显著效果是：输出电压稳定，波形好，更接近正弦波，对容性负载的适应性更强，有利于用电器具寿命的延长，因而电机的适用范围更广泛。
附图说明
图1是本发明的立体分解示意图，省略转子1上的绕组线圈，标号7为风扇；
图2是图1中转子1铁芯的结构示意图；
图3是图1中定子2的主视图；
图4是图3的俯视图；
图5是本发明中定子2线圈的等距式二极绕组的嵌线原理示意图。
具体实施方式
下面结合附图和具体实施方式对本发明作进一步说明：
如图1至图5所示，一种12KW小型二极单相发电机，由转子1及定子2组成，转子1的铁芯上设有两套阻尼绕组，每套阻尼绕组由阻尼条3和阻尼板4组成，阻尼板4设置在铁芯两端面上，阻尼条3轴向穿过铁芯后两端可靠地焊接(点焊)接在阻尼板4上；定子2上的绕组线圈2a为等距式二极绕组结构。
图2中转子1铁芯上每套阻尼绕组中的阻尼条3为4条，阻尼条3的横截面为圆形且直径在2～8mm之间，阻尼板4的厚度为1～8mm。阻尼条3和阻尼板4采用有色金属，如铝或铜，图中标号6为阻尼板4与阻尼条3之间的焊接点。
转子1铁芯上的绕线槽1a与定子2铁芯上的嵌线槽2b成3°～15°的夹角。为达此目的，既可以使转子1铁芯上的绕线槽1a相对转子轴心线扭3°～15°的角度，而使定子2铁芯上的嵌线槽2b为直槽，反之亦然。也可以使转子1铁芯上的绕线槽1a及子2铁芯上的嵌线槽2b均相对于发电机轴心线扭一定角度，并最终使转子1铁芯上的绕线槽1a与定子2铁芯上的嵌线槽2b成3°～15°夹角。这样，就可使转子1与嵌在定子2铁心中的输出绕组之间互成角度，削弱了奇次谐波对输出电压波形的影响，使输出电压波形更接近正弦波。
从图3、图4还可看出：定子2铁芯外表面分布有轴向的沟槽5，沟槽5可有效改善定子2轭部磁路，增大了定子2铁芯外圆柱面的散热面积，因此可有效改善定子2的温升，从而提高发电机输出电压波形的质量。
图5示出了本发中定子2等距式二极绕组的嵌线原理示意图，图中嵌线槽2b的槽数为30，依次用1～30的阿拉伯数字进行编号，实线表示主绕组I，虚线表示取样绕组，其跨距分别为1～10，2～11……6～15形成N极，S极以此类推。第7、8、9、22、23、24槽为副绕组，以双点划线表示。A到F为外接线端子(A和D线端接0.75mm2黄线，B线端和F线端接1.5mm2红、蓝线，C线端接0.75mm2棕线，E线端接0.75mm2蓝线)。

Claims (5)

1、一种小型二极单相发电机，包括转子(1)及定子(2)，其特征是：所述转子(1)的铁芯上设有两套阻尼绕组，每套阻尼绕组由阻尼条(3)和阻尼板(4)组成，阻尼板(4)设置在铁芯两端面上，阻尼条(3)轴向穿过铁芯后两端可靠连接在阻尼板(4)上；定子(2)上的绕组线圈(2a)为等距式二极绕组结构。
2、根据权利要求1所述的小型二极单相发电机，其特征是：所述转子(1)铁芯上每套阻尼绕组中的阻尼条(3)为4～8条，阻尼条(3)的横截面为圆形且直径在2～8mm之间，阻尼板(4)的厚度为1～8mm。
3、根据权利要求1或2所述的小型二极单相发电机，其特征是：所述转子(1)铁芯上的绕线槽(1a)与定子(2)铁芯上的嵌线槽(2b)成3°～15°夹角。
4、根据权利要求1或2所述的小型二极单相发电机，其特征是：所述定子(2)铁芯外表面分布有轴向的沟槽(5)。
5、根据权利要求3所述的小型二极单相发电机，其特征是：所述定子(2)铁芯外表面分布有轴向的沟槽(5)。
CNB2005100203806A 2005-02-04 2005-02-04 小型二极单相发电机 Expired - Lifetime CN1332500C (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CNB2005100203806A CN1332500C (zh) 2005-02-04 2005-02-04 小型二极单相发电机
AT05792069T ATE535986T1 (de) 2005-02-04 2005-09-26 Minityp-einphasen-generator mit zwei polen
US11/575,926 US20070262661A1 (en) 2005-02-04 2005-09-26 Miniature Bipolar Single-Phase Generator
EP05792069A EP1879282B1 (en) 2005-02-04 2005-09-26 Minitype single-phase generator with two poles
CA002596936A CA2596936A1 (en) 2005-02-04 2005-09-26 Miniature bipolar single-phase generator
AU2005326424A AU2005326424B2 (en) 2005-02-04 2005-09-26 Minitype single-phase generator with two poles
PCT/CN2005/001561 WO2006081723A1 (fr) 2005-02-04 2005-09-26 Mini generateur monophase a deux poles

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CNB2005100203806A CN1332500C (zh) 2005-02-04 2005-02-04 小型二极单相发电机

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CN1665105A CN1665105A (zh) 2005-09-07
CN1332500C true CN1332500C (zh) 2007-08-15

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EP1879282B1 (en) 2011-11-30
EP1879282A4 (en) 2010-05-26
AU2005326424A1 (en) 2006-08-10
CA2596936A1 (en) 2006-08-10
US20070262661A1 (en) 2007-11-15
ATE535986T1 (de) 2011-12-15
EP1879282A1 (en) 2008-01-16
CN1665105A (zh) 2005-09-07
AU2005326424B2 (en) 2010-02-11
WO2006081723A1 (fr) 2006-08-10

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Address before: 400700 Chongqing city Beibei District of Tianshengqiao No. 80 Fort saponin

Patentee before: Ai Chun

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Application publication date: 20050907

Assignee: Chongqing Senci Electric Machinery Co.,Ltd.

Assignor: Ai Chun

Contract record no.: 2011500000037

Denomination of invention: Small-sized two-pole single-phase generator

Granted publication date: 20070815

License type: Exclusive License

Record date: 20110523

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Effective date of registration: 20190415

Address after: 225300 Yongsheng Road, Gaogang Science and Technology Venture Park, Taizhou City, Jiangsu Province

Patentee after: JIANGSU SENCI ELECTRIC MACHINERY CO.,LTD.

Address before: 400709 No. 200 Tongxing North Road, Tongjiaxi Town, Beibei District, Chongqing

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Granted publication date: 20070815