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21. 发明专利

JPH01293507A STATIONARY INDUCTION APPARATUS 失效
公开(公告)号：JPH01293507A
公开(公告)日：1989-11-27
申请号：JP12414288
申请日：1988-05-21
申请人： HITACHI LTD
发明人： SAITO TATSU , INAGAKI KEIZO , HIGAKI MASARU , HAMADATE YOSHIO , ENDO KAORU , HIRAISHI KIYOTO
IPC分类号： H01F27/28
摘要： PURPOSE:To obtain a foil winding type stationary induction apparatus in which local overheating caused by eddy currents concentrated to the upper and lower end of its winding can be suppressed and whose reliability can be improved by a method wherein the foil winding is divided into a plurality of windings and the divided windings are classified into the upper winding group and the lower winding group with the center of the axial direction as a boundary and the upper group windings and the lower group windings are connected in parallel with each other and the divided windings in the upper group and the divided windings in the lower group are connected in series respectively. CONSTITUTION:A stationary induction apparatus has foil windings which are formed by putting metal sheets upon insulating sheets and winding around a metal leg 1. The foil winding is divided into a plurality of windings and the divided windings are classified into the upper winding group and the lower winding group with the center of the axial direction as a boundary and the upper group windings and the lower group windings are connected in parallel with each other and the divided windings in the upper group and the divided windings in the lower group are connected in series respectively. For instance, an outer winding 2b is divided into four windings A, B, C and D and the widths of the metal sheets forming the respective divided windings A, B, C and D are approximately equal. The divided windings B and C are connected to a high voltage lead side (u) and the divided windings A and D are connected to a neutral lead side (n). With the center of the axial direction as a boundary, the upper windings A and B and the lower windings C and D are connected in parallel with each other and, further, the winding A is connected to the winding B in series and the winding C is connected to the winding C in series. An inner winding 2a has a structure same as the structure of the cuter winding 2b.

22. 发明专利

JPS6280921A CAPACITOR BUSHING 失效
公开(公告)号：JPS6280921A
公开(公告)日：1987-04-14
申请号：JP22013785
申请日：1985-10-04
申请人： HITACHI LTD
发明人： TAKAHASHI GENJI , KANAI MINORU , HIGAKI MASARU
IPC分类号： H01B17/28 , G02F1/09

23. 发明专利

JPS6214408A AMORPHOUS MAGNETIC ALLOY WOUND CORE 失效
公开(公告)号：JPS6214408A
公开(公告)日：1987-01-23
申请号：JP15294285
申请日：1985-07-11
申请人： HITACHI LTD
发明人： SAITO TATSU , HAGIWARA SHUYA , HIGAKI MASARU , YAMAGUCHI SHOYU , SAKAMOTO MASARU , YAMANAKA KOJI
IPC分类号： H01F27/24 , H01F27/25 , H01F41/02
摘要： PURPOSE:To prevent a wind-clamping phenomenon and a nonuniform annealing and to secure the low iron loss characteristics by a method wherein the wound core is constituted of plural core blocks divided in the laminated direction of amorphous magnetic alloy thin belts and respectively wound up in the prescribed shape and are respectively annealed. CONSTITUTION:Core blocks 3a-3c, which are respectively formed by winding amorphous magnetic alloys and are respectively formed in the configuration of a curve at the four corners thereof and in the configuration of a straight-line at the other parts, are separately formed and after an annealing is performed on each core block, the core blocks are assembled and the amorphous magnetic alloy wound core is constituted. Hereby the wound core is formed in a configuration that the core blocks mutually adhere at the straight-line parts thereof and cavities 7 exist at the four corners thereof. As a result, a wind-clamping phenomenon at the four corner parts of the wound core is prevented and a reduction in the magnetism characteristics of the amorphous alloy thin belts, which is caused by an excessive stress, is eliminated. Furthermore, as an annealing is performed on each core block 3a-3c, there is no overannealing and underannealing on account of a nonuniformity of the temperature distribution. Accordingly a drop of the characteristics of the thin belts is eliminated. Moreover, an assemble, support, cooling and so forth of the core can be executed utilizing the cavities 7 located at the four corners thereof.

24. 发明专利

JPS622508A FIVE-LEG IRON CORE OF TRANSFORMER 失效
公开(公告)号：JPS622508A
公开(公告)日：1987-01-08
申请号：JP14036185
申请日：1985-06-28
申请人： HITACHI LTD
发明人： HAMADATE YOSHIO , SAITO TATSU , HIGAKI MASARU , WATANABE TORU
IPC分类号： H01F27/245 , B65G27/08
摘要： PURPOSE:To reduce the cutting-off manhours while improving the yield and facilitating the production and assembling operations of iron core by a method wherein Y type junction process making the edge of leg irons slip in the upper and lower directions of joint irons to make the V type edge angle constant is adopted in the surface layer increasing the joint iron width more than the leg iron width. CONSTITUTION:V type junctions wherein joint irons 2a are perfectly divided by the edge angle theta of a leg iron 1 are formed in the central part of iron core with leg iron width of L1 and the maximum joint iron width W making iron sheet wider. On the other hand, Y type junctions wherein the V type edges of leg irons 1 are slipped in the upper and lower directions of joint irons 2 are formed in the parts with narrower leg iron width of L2, L3 conbined with the joint iron width W to make the cutting-off angle theta at the V type edge constant. In such a constitution, the leg irons 1 abut against the joint legs 2 at all parts of iron core not only to make the most of orientation characteristics but also to make the cut off angle theta of joint irons 2 by the leg irons 1 almost constant so that the problem of constantly changing the cutting off angle may be substantially solved.

25. 发明专利

JPS6134910A Wound core 失效
标题翻译：创意核心
公开(公告)号：JPS6134910A
公开(公告)日：1986-02-19
申请号：JP15507184
申请日：1984-07-25
申请人： Hitachi Ltd
发明人： HAGIWARA SHUYA , SAITO TATSU , HIGAKI MASARU , YAMAGUCHI SHOYU , SAKAMOTO MASARU , OOYAMA AKIHIRO
IPC分类号： H01F27/24 , H01F27/25
CPC分类号： H01F27/25
摘要： PURPOSE:To enable to make the best use of the low iron loss characteristics of an amorphous magnetic alloy thin strip by a method wherein the thin strip, to be wound around a wound-core, is formed in such a manner that the width of the inner side is made wider than that of the outer side. CONSTITUTION:When the curvature of yoke parts 4a and 4b is made larger as much as possible and one half of the circle, having the width W of a core window 5 as the diameter, is set as the extreme inner circumference and they are lap-wound, the bent part of small curvature is eliminated, and a winding work can be performed without increasing the tension so much when a coiling work is performed. On the other hand, pertaining to the widths Da-Df of partial cores 12a-12f, the width Da is the widest, the width becomes narrower in the order of Db, Dc, De and Df, and the cores are stacked from the side of the core window 5 in the order of 12b, 12c, 12d and 12f. As a result, the width of a thin strip 6a to be wound becomes narrower, it can be wound with small tension, and the tension applied to the thin strip can be reduced, thereby enabling to prevent the generation of buckling of core leg parts 2a and 2b.
摘要翻译：目的：为了能够充分利用非晶磁性合金薄带的低铁损特性，通过这样一种方法，可以将缠绕在卷绕芯上的薄带形成为：内侧比外侧宽。构成：当轭部4a和4b的曲率尽可能大时，将具有作为直径的芯窗5的宽度W的圆的一半设定为极端的内圆周，卷绕时，小曲率的弯曲部分被消除，并且当进行卷取作业时，可以不增加张力而进行卷绕工作。另一方面，关于部分芯12a-12f的宽度Da-Df，宽度Da最宽，宽度变得比Db，Dc，De和Df的顺序变窄，并且芯从侧面堆叠核心窗口5的顺序为12b，12c，12d和12f。结果，要被卷绕的薄条6a的宽度变窄，可以以较小的张力缠绕，并且可以减小施加到薄带上的张力，从而能够防止芯部腿部2a的屈曲的产生和2b。

26. 发明专利

JPS60154605A LAMINATED MAGNETIC IRON CORE 失效
公开(公告)号：JPS60154605A
公开(公告)日：1985-08-14
申请号：JP1013584
申请日：1984-01-25
申请人： HITACHI LTD
发明人： OONO YASUNORI , SAITOU TATSU , HAMADATE YOSHIO , HIGAKI MASARU
IPC分类号： H01F27/245
摘要： PURPOSE:To improve magnetic characteristics such as iron loss and noise and minimize increase of manufacturing cost by using a material having less magnetic loss for a particular steel plate. CONSTITUTION:An iron core of a 3-phase 3-leg inner iron type transformer is formed by abutting the leg irons 1a, 1b and yokes 2a, 2b, 2c, 2d as shown by A and B and then alternately laminating A and B. In both A and B, a low iron loss material is used for steel plates 2b, 2c having small area being abutted with the center leg and the center leg 1b among the upper and lower yokes. Since the length l2 where the center leg 1b and yoke 2b are in contact is shorter than the length l1 where the center leg 1b and the yoke 2a are in contact by the size of overlapping portion, the magnetic flux is more concentrated to 2b than 2a and the iron loss is also increased in such area. A low iron loss iron core can be realized using steel plates 2b, 1b, 2c of the low iron loss material.

27. 发明专利

JPS592164B2 JPS592164B2 - 失效
公开(公告)号：JPS592164B2
公开(公告)日：1984-01-17
申请号：JP1593276
申请日：1976-02-18
申请人： Hitachi Ltd
发明人： HIGAKI MASARU , HIRAISHI KYOTO , MYAO HIROSHI
IPC分类号： H01F27/28

28. 发明专利

JPS56117573A SUPERCONDUCTING EXTRAAHIGH VOLTAGE ROTARY ELECTRIC MACHINE 失效
公开(公告)号：JPS56117573A
公开(公告)日：1981-09-16
申请号：JP1969680
申请日：1980-02-21
申请人： HITACHI LTD
发明人： KAMATA YUZURU , HIGAKI MASARU , WATANABE MASATOSHI
IPC分类号： H02K55/04
摘要： PURPOSE:To prevent dielectric breakdown between a rotor and armture winding by arranging conductive linear bodies to an insulating cylinder for supporting armature winding so as not to make up a closed circuit while grounding one ends of the linear bodies and electrostatically shielding the bodies. CONSTITUTION:Superconducting winding 2 generating high magnetic flux is mounted to a superconducting rotor 1, and the whole is grounded. Armature winding supporting cylinders 4 consisting of insulating materials are oppositely disposed on an outer circumferent of the superconducting rotor 1 through a void 3, and armature winding 5 is installed on the surfaces of the cylinders. A ground insulating layer 6, a stator core 7 grounded and a stator frame 8 are arranged toward the outer diameter directions successively. Thin conductor wires 9 are zigzag disposed on the surfaces of the outer circumferences of the supporting cylinders 4 in shapes that the wires extend along the axial direction, are folded at end sections and extend to the opposite side in the axial direction again, and the one ends are grounded and the other ends are opened. Thus, an interlinkage area of the rotor to high magnetic flux is decreased, an opened loop is formed to eddy currents and local heating can be removed.

29. 发明专利

JPH0624111B2 失效
公开(公告)号：JPH0624111B2
公开(公告)日：1994-03-30
申请号：JP15825484
申请日：1984-07-27
申请人： HITACHI LTD
发明人： FUJIWARA SHIGETAKA , SATO TADASHI , KUROSAWA TOMOE , HIGAKI MASARU , HASHIMOTO ISAO
IPC分类号： H01J37/08 , H01J37/30

30. 发明专利

JPH0619383B2 失效
公开(公告)号：JPH0619383B2
公开(公告)日：1994-03-16
申请号：JP27161384
申请日：1984-12-21
申请人： HITACHI LTD
发明人： KANAI MINORU , TAKAHASHI GENJI , HIGAKI MASARU
IPC分类号： G01R15/24 , G01R15/22 , G01R15/07

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