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PROBLEM TO BE SOLVED: To reduce torque ripple of a motor.SOLUTION: A flange part 30 that is expanded towards neighboring teeth at tips of teeth 24 of a stator is formed from a magnetostrictive material. Between the mutually opposing flange parts 30 of the neighboring teeth, a bridging member 36 of a...

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Hauptverfasser:	NAKAI HIDEO, KUROISHI SHINKATSU, INAYAMA HIROHIDE, OKADA AKIHISA, OTANI YUKO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
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creator	NAKAI HIDEO KUROISHI SHINKATSU INAYAMA HIROHIDE OKADA AKIHISA OTANI YUKO
description	PROBLEM TO BE SOLVED: To reduce torque ripple of a motor.SOLUTION: A flange part 30 that is expanded towards neighboring teeth at tips of teeth 24 of a stator is formed from a magnetostrictive material. Between the mutually opposing flange parts 30 of the neighboring teeth, a bridging member 36 of a nonmagnetic material is disposed. When a magnetic flux passes the flange part 30, the flange part 30 extends in a circumferential direction. Since the flange part 30 is restricted in the circumferential direction by trunks 28 of the teeth and the bridging member 36, a compression stress acts on tip portions of the teeth 24 and increase of a magnetic flux density in the portions is suppressed. A peak of a magnetic force is reduced and torque ripple is decreased.SELECTED DRAWING: Figure 2 【課題】電動機のトルクリップルを低減する。【解決手段】固定子のティース２４先端の隣接ティースに向けて張り出すつば部３０を磁歪材料で構成する。また、隣接するティースの互いに対向するつば部３０の間に、非磁性材料の橋渡し部材３６を配置する。つば部３０を磁束が通ると、つば部３０が周方向に伸びる。つば部３０は、ティースの幹部２８と橋渡し部材３６により周方向に拘束されているため、ティース２４の先端部分に圧縮応力が作用し、その部分の磁束密度の増加が抑制される。磁力のピークが低下して、トルクリップルが減少する。【選択図】図２
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Between the mutually opposing flange parts 30 of the neighboring teeth, a bridging member 36 of a nonmagnetic material is disposed. When a magnetic flux passes the flange part 30, the flange part 30 extends in a circumferential direction. Since the flange part 30 is restricted in the circumferential direction by trunks 28 of the teeth and the bridging member 36, a compression stress acts on tip portions of the teeth 24 and increase of a magnetic flux density in the portions is suppressed. A peak of a magnetic force is reduced and torque ripple is decreased.SELECTED DRAWING: Figure 2 【課題】電動機のトルクリップルを低減する。【解決手段】固定子のティース２４先端の隣接ティースに向けて張り出すつば部３０を磁歪材料で構成する。また、隣接するティースの互いに対向するつば部３０の間に、非磁性材料の橋渡し部材３６を配置する。つば部３０を磁束が通ると、つば部３０が周方向に伸びる。つば部３０は、ティースの幹部２８と橋渡し部材３６により周方向に拘束されているため、ティース２４の先端部分に圧縮応力が作用し、その部分の磁束密度の増加が抑制される。磁力のピークが低下して、トルクリップルが減少する。【選択図】図２</description><language>eng ; jpn</language><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ; DYNAMO-ELECTRIC MACHINES ; ELECTRICITY ; GENERATION</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161006&DB=EPODOC&CC=JP&NR=2016178791A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25546,76297</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20161006&DB=EPODOC&CC=JP&NR=2016178791A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAKAI HIDEO</creatorcontrib><creatorcontrib>KUROISHI SHINKATSU</creatorcontrib><creatorcontrib>INAYAMA HIROHIDE</creatorcontrib><creatorcontrib>OKADA AKIHISA</creatorcontrib><creatorcontrib>OTANI YUKO</creatorcontrib><title>MOTOR</title><description>PROBLEM TO BE SOLVED: To reduce torque ripple of a motor.SOLUTION: A flange part 30 that is expanded towards neighboring teeth at tips of teeth 24 of a stator is formed from a magnetostrictive material. 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A peak of a magnetic force is reduced and torque ripple is decreased.SELECTED DRAWING: Figure 2 【課題】電動機のトルクリップルを低減する。【解決手段】固定子のティース２４先端の隣接ティースに向けて張り出すつば部３０を磁歪材料で構成する。また、隣接するティースの互いに対向するつば部３０の間に、非磁性材料の橋渡し部材３６を配置する。つば部３０を磁束が通ると、つば部３０が周方向に伸びる。つば部３０は、ティースの幹部２８と橋渡し部材３６により周方向に拘束されているため、ティース２４の先端部分に圧縮応力が作用し、その部分の磁束密度の増加が抑制される。磁力のピークが低下して、トルクリップルが減少する。【選択図】図２</description><subject>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</subject><subject>DYNAMO-ELECTRIC MACHINES</subject><subject>ELECTRICITY</subject><subject>GENERATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZGD19Q_xD-JhYE1LzClO5YXS3AxKbq4hzh66qQX58anFBYnJqXmpJfFeAUYGhmaG5hbmloaOxkQpAgANYBsF</recordid><startdate>20161006</startdate><enddate>20161006</enddate><creator>NAKAI HIDEO</creator><creator>KUROISHI SHINKATSU</creator><creator>INAYAMA HIROHIDE</creator><creator>OKADA AKIHISA</creator><creator>OTANI YUKO</creator><scope>EVB</scope></search><sort><creationdate>20161006</creationdate><title>MOTOR</title><author>NAKAI HIDEO ; KUROISHI SHINKATSU ; INAYAMA HIROHIDE ; OKADA AKIHISA ; OTANI YUKO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2016178791A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2016</creationdate><topic>CONVERSION OR DISTRIBUTION OF ELECTRIC POWER</topic><topic>DYNAMO-ELECTRIC MACHINES</topic><topic>ELECTRICITY</topic><topic>GENERATION</topic><toplevel>online_resources</toplevel><creatorcontrib>NAKAI HIDEO</creatorcontrib><creatorcontrib>KUROISHI SHINKATSU</creatorcontrib><creatorcontrib>INAYAMA HIROHIDE</creatorcontrib><creatorcontrib>OKADA AKIHISA</creatorcontrib><creatorcontrib>OTANI YUKO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>NAKAI HIDEO</au><au>KUROISHI SHINKATSU</au><au>INAYAMA HIROHIDE</au><au>OKADA AKIHISA</au><au>OTANI YUKO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>MOTOR</title><date>2016-10-06</date><risdate>2016</risdate><abstract>PROBLEM TO BE SOLVED: To reduce torque ripple of a motor.SOLUTION: A flange part 30 that is expanded towards neighboring teeth at tips of teeth 24 of a stator is formed from a magnetostrictive material. 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subjects	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION
title	MOTOR
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