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1.发明授权
公开(公告)号：US5887643A
公开(公告)日：1999-03-30
申请号：US776018
申请日：1997-01-17
CPC分类号： H02K15/0012 , B22D19/0054
摘要： A rotor core (12) of a squirrel-cage rotor of an induction motor is housed in a recess (14) of a mold (18) of a conductor casting apparatus (10). A composite cylinder device (68) is fixed on the upper side of the mold (18) or on the side remoter from the pouring gate thereof, and the rotor core 12 is held in a predetermined position in the recess 14 by one piston (70). The other piston (72) locally pressurizes a molten metal that fills an end-connector ring cavity (66) defined between the rotor core (12) and the recess (14) on the side remoter from the pouring gate.
摘要翻译： PCT No.PCT / JP96 / 01326 Sec。 371日期1997年1月17日 102（e）日期1997年1月17日PCT提交1996年5月20日PCT公布。 公开号WO96 / 37037 日期：1996年11月21日感应电动机的鼠笼式转子的转子芯（12）容纳在导体铸造装置（10）的模具（18）的凹部（14）中。 复合气缸装置（68）从模具（18）的上侧或离开浇口的侧面偏心固定，转子芯12通过一个活塞（70）保持在凹部14中的预定位置 ）。 另一个活塞（72）局部地加压熔融金属，该熔融金属填充限定在转子芯体（12）与侧浇道之间的凹槽（14）之间的端部连接器环腔（66）。
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公开(公告)号：US5352964A
公开(公告)日：1994-10-04
申请号：US971969
申请日：1993-02-19
CPC分类号： H02P25/18
摘要： A control method and apparatus for actuating an induction motor which is capable of generating a sufficiently large output in a wide speed region. In such an induction motor, each of Y-connection phase windings of the induction motor is divided into two split windings 5t and 3t at a predetermined split ratio (for example, 5:3). When a rotational speed of the induction motor is in a low speed region, only the changeover switch MC2 is turned on to supply exciting current to both of the split windings 5t and 3t. When the rotational speed of the induction motor is in a middle speed region, only the changeover switch MC3 is turned on to exclusively supply exciting current to the split windings 5t. Furthermore, when the rotational speed of the induction motor is in a high speed region, only the changeover switch MC1 is turned on to exclusively supply exciting current to the split windings 3t. With this arrangement, three different numbers of turns can selectively be used with respect to each phase winding so that relatively large number of turns can be used for the rotation in the low speed region, while relatively small number of turns can be used for the rotation in the high speed region in order to accomplish the desired control the actuation of the induction motor.
摘要翻译： PCT No.PCT / JP92 / 00855 Sec。 371日期：1993年2月19日 102（e）日期1993年2月19日PCT提交1992年7月6日PCT公布。 公开号WO93 / 01653 日期1993年1月21日。一种用于致动感应电动机的控制方法和装置，其能够在宽速度区域中产生足够大的输出。 在这种感应电动机中，感应电动机的Y连接相绕组中的每一个以预定的分流比（例如5:3）被分成两个分离绕组5t和3t。 当感应电动机的转速处于低速区域时，仅转换开关MC2导通，以向两个分压绕组5t和3t提供励磁电流。 当感应电动机的转速处于中速区域时，只有转换开关MC3导通，从而向分路绕组5t专门提供励磁电流。 此外，当感应电动机的转速处于高速区域时，只有转换开关MC1导通，从而向分压绕组3t专门提供励磁电流。 通过这种布置，相对于每个相绕组可以选择性地使用三个不同的匝数，使得可以使用相对较大数量的匝数用于低速区域中的旋转，而相对较少的匝数可用于旋转 在高速区域中，以实现感应电动机的致动所需的控制。
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3.发明授权Method for casting conductor of a cage rotor of an induction motor and apparatus for casting the same 失效用于铸造感应电动机的笼式转子的导体的方法及其铸造装置
公开(公告)号：US5937930A
公开(公告)日：1999-08-17
申请号：US11219
申请日：1998-02-09
CPC分类号： B22D19/0054 , H02K15/0012 , Y10T29/49012
摘要： The invention relates to an apparatus for casting a conductor of a cage rotor of an induction motor. A rotor core (13) comprising a laminated steel sheets is housed in a recess portion of a casting mold, an upper end portion thereof is held by a holding portion (70) and molten metal is supplied into a plurality of slots formed in the rotor core, thereby forming a plurality of conductor rods and a pair of end rings connecting the ends of the conductor rods with one another. The holding portion (70) comprises a cup (72) and a cylinder (73), and an axial dimension of the cup (72) is selected in correspondence to an axial dimension of the rotor core (13) housed in the recess portion of the casting mold. Further, by using a double cylinder (77, 79) in the holding portion (70), a rotor having higher quality can be obtained. For this reason, the same conductor casting apparatus can be used for casting the conductor of the rotor having different axial lengths and qualities depending on specifications.
摘要翻译： PCT No.PCT / JP97 / 02037第 371日期：1998年2月9日 102（e）1998年2月9日PCT 1997年6月12日PCT公布。 公开号WO97 / 48171 日期：1997年12月18日本发明涉及用于铸造感应电动机的笼式转子的导体的装置。 包括层压钢板的转子铁芯（13）容纳在铸模的凹部中，其上端由保持部（70）保持，熔融金属被供给到形成在转子中的多个槽 从而形成多个导体棒和将导体棒的端部彼此连接的一对端环。 保持部分（70）包括杯（72）和圆筒（73），并且杯（72）的轴向尺寸对应于容纳在凹部（72）的凹部中的转子芯（13）的轴向尺寸 铸模。 此外，通过在保持部（70）中使用双缸（77,79），可以获得质量更高的转子。 因此，相同的导体铸造装置可以根据规格用于铸造具有不同轴向长度和质量的转子的导体。
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公开(公告)号：US5780946A
公开(公告)日：1998-07-14
申请号：US874885
申请日：1997-06-13
CPC分类号： H02K9/16 , F04D25/082 , H02K5/225
摘要： An air-cooled type electric motor (20) includes a rotor, a stator includes a stator core (28), and a front support member (32) and a rear support member (34) arranged at both axial ends of the stator core (28). A plurality of air passages (42), extending continuously in an axial direction, are provided in the stator core (28), the front support member (32), and the rear support member (34). A centrifugal blower unit (50) is placed at further rear side of the rear support member (34). Because the centrifugal blower unit (50) has a large pressure rise, air, surrounding the motor and sufficient to cause an effective cooling, can be made to flow into the air passages (42) with a smaller diameter. A drive section (56) of the blower unit (50) is fixed directly to the rear support member (34) by bolts (72). Consequently, an electric wire (74) for the drive section (56) extends through the interior space of the motor (20), and is connected to a terminal box (48). In this manner, the blowing capacity, and the moisture-proofing of the terminal box, can be improved.
摘要翻译： 风冷式电动机（20）包括转子，定子包括定子铁心（28）和布置在定子铁心的两个轴向端部的前支撑构件（32）和后支撑构件（34） 28）。 在定子铁心（28），前支撑构件（32）和后支撑构件（34）中设置有沿轴向连续延伸的多个空气通道（42）。 离心风机单元（50）设置在后支撑构件（34）的后侧。 由于离心式鼓风机单元50具有较大的压力上升，所以围绕马达并足以引起有效冷却的空气可以以较小的直径流入空气通道42。 鼓风机单元（50）的驱动部分（56）通过螺栓（72）直接固定在后支撑件（34）上。 因此，用于驱动部分（56）的电线（74）延伸穿过电动机（20）的内部空间，并连接到接线盒（48）。 以这种方式，可以提高接线盒的吹风能力和防潮性。
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公开(公告)号：US5577847A
公开(公告)日：1996-11-26
申请号：US521446
申请日：1995-08-30
申请人： Kosei Nakamura , Yukio Katsuzawa , Michi Masuya
发明人： Kosei Nakamura , Yukio Katsuzawa , Michi Masuya
IPC分类号： F16C21/00 , F16C19/52 , F16C27/00 , F16C35/077 , H02K5/10 , H02K5/173 , F16C23/00 , F16C33/78
CPC分类号： H02K5/1732 , F16C19/52 , F16C35/077
摘要： An improved supporting arrangement for a bearing in an electric motor is provided for preventing the development of fretting corrosion. The electric motor comprises a housing, the housing including a longitudinal axis and bores at either end thereof so that the bores are aligned to the longitudinal axis, a rotating shaft extending along the longitudinal axis through the bores, and bearings for rotationally supporting the rotating shaft at either end thereof, the bearings being provided within the respective bores. The supporting arrangement comprises a support in the form of a ring for supporting the one of the bearings into which the bearing is fitted, the support being fitted into one of the bores and slidable along the longitudinal axis, a pair of O-rings provided between the outer surface of the support and the inner surface of the bore into which the support is fitted, the O-rings being separated from each other by an interval along the longitudinal axis, a lubricant receiving receptacle provided between the pair of O-rings, and lubricant material applied on the outer surface of the support, on the inner surface of the bore, and in the lubricant receiving receptacle.
摘要翻译： 提供了一种用于电动机中的轴承的改进的支撑装置，用于防止微动腐蚀的发展。 电动机包括壳体，壳体包括纵向轴线并且在其任一端处具有孔，使得孔与纵向轴线对齐，沿着纵向轴线延伸穿过孔的旋转轴和用于旋转地支撑旋转轴的轴承 在其任一端，轴承设置在相应的孔内。 支撑装置包括一个用于支撑轴承装配的轴承的环形支撑件，该支承件装配在其中一个孔中并沿着纵向轴线可滑动，一对O形环设置在 所述支撑件的外表面和所述孔的内表面与所述支撑件相配合，所述O形环沿所述纵向轴线间隔一段距离，设置在所述一对O形环之间的润滑剂接收容座， 以及施加在支撑体的外表面，孔的内表面上和润滑剂接收容器中的润滑剂材料。
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公开(公告)号：US5894653A
公开(公告)日：1999-04-20
申请号：US765685
申请日：1997-01-08
申请人： Kosei Nakamura , Akio Sadatsuki , Yukio Katsuzawa , Michi Masuya
发明人： Kosei Nakamura , Akio Sadatsuki , Yukio Katsuzawa , Michi Masuya
CPC分类号： H02K15/14 , H02K15/16 , H02K7/14 , Y10T29/49009
摘要： A stator (76), a rotor (82), and frame bodies (84, 86) to fixedly hold a stator core (74) therebetween in an axial direction are assembled into a motor. Further, a shaft (78) of the rotor and the frame body (86) are mutually coupled through a coupler (106) with no ability for relative rotation. While integrally rotating the frame bodies (84, 86), the stator (76), and the rotor (82) forming the motor about an axis of the rotor (82), a lathe is used to machine mounting surfaces (96a, 100a) of the frame body (84), which will be in direct contact with a surface of an object on which the motor is mounted.
摘要翻译： PCT No.PCT / JP96 / 01371 Sec。 371日期1997年1月8日 102（e）日期1997年1月8日PCT提交1996年5月23日PCT公布。 第WO96 / 37942号公报 日期：1996年11月28日定子（76），转子（82）以及将定子铁心（74）轴向固定地固定在其中的框体（84,86）组装成电动机。 此外，转子的轴（78）和框架体（86）通过联接器（106）相互联接，没有相对旋转的能力。 在将框架体（84,86），定子（76）和绕转子（82）的轴线形成电动机的转子（82）整体旋转的同时，车床用于加装安装表面（96a，100a） 框架体（84）将与安装有电动机的物体的表面直接接触。
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公开(公告)号：US5747900A
公开(公告)日：1998-05-05
申请号：US542901
申请日：1995-10-13
申请人： Kosei Nakamura , Yukio Katsuzawa , Junichi Nagai
发明人： Kosei Nakamura , Yukio Katsuzawa , Junichi Nagai
摘要： An electric motor includes a covering member for covering the outer periphery of a stator core, to improve the cooling efficiency of an air-cooling system of the motor. The covering member is fixed to a stator while defining a cavity therebetween in fluidic communication with air passages formed directly in the stator core. When an blower unit mounted on the motor operates, an ambient air surrounding the motor is introduced into the cavity, and then flows from the cavity into the air passages, so as to actively absorb heat generated in the stator from the outer peripheral surface of the stator core and the tubular wall surfaces of the air passages. Thereafter, the air is discharged from the air passages out of the motor.
摘要翻译： 电动机包括用于覆盖定子芯的外周的覆盖部件，以提高电动机的空气冷却系统的冷却效率。 覆盖构件固定在定子上，同时在其间限定空腔，与直接形成在定子芯中的空气通道流体连通。 当安装在电动机上的鼓风机单元工作时，围绕电动机的环境空气被引入空腔中，然后从空腔流入空气通道，从而主动吸收定子中产生的热量， 定子芯和空气通道的管状壁表面。 此后，空气从电动机的空气通道排出。
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公开(公告)号：US5559380A
公开(公告)日：1996-09-24
申请号：US355333
申请日：1994-12-12
申请人： Kosei Nakamura , Yukio Katsuzawa , Yoshinobu Maeda
发明人： Kosei Nakamura , Yukio Katsuzawa , Yoshinobu Maeda
摘要： An air-cooled motor having cooling-air passages each formed by a plurality of small ventilation passages extending through a front housing, a stator, and a rear housing, constructed in one piece. Cuttings are prevented from being accumulated at inlets of cooling-air passages. For example, the cooling-air passages are formed of ten small ventilation passages, each defined between adjacent ones of eleven ribs each forming part of the stator. All the eleven ribs are provided with respective front housing ribs. End faces of the front housing ribs on the cooling-air inlet side are uniform in height, and positioned in an identical plane. Cooling air flows into the small ventilation passages in the direction of an arrow. In this case, the end faces of the small ventilation passages on the cooling-air inlet side are aligned, so that cuttings contained in cooling air are accumulated only on the end faces of ribs defining the small ventilation passages on the cooling-air inlet side, forming accumulation layers thereon, which prevents the small ventilation passages from being clogged with accumulations of cuttings.
摘要翻译： 一种风冷式电动机，其具有各自由多个小型通风通道形成的冷气通道，所述多个小型通风通道延伸穿过一体构成的前壳体，定子和后壳体。 防止切屑积聚在冷却空气通道的入口处。 例如，冷却空气通道由十个小的通风通道形成，每个小通风通道限定在每个构成定子的一部分的十一个肋之间的相邻的通道之间。 所有的十一个肋都设有相应的前壳肋。 冷却空气入口侧前壳肋的端面高度均匀，并位于相同的平面上。 冷却空气沿箭头方向流入小通风通道。 在这种情况下，冷却空气入口侧的小通风通道的端面被排列，使得冷却空气中容纳的切屑仅在限定冷却空气入口侧的小通风通道的肋的端面上积聚 ，在其上形成蓄积层，防止小的通风通道被积聚物堵塞。
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公开(公告)号：US5448118A
公开(公告)日：1995-09-05
申请号：US66067
申请日：1993-05-28
申请人： Kosei Nakamura , Yukio Katsuzawa , Michi Masuya
发明人： Kosei Nakamura , Yukio Katsuzawa , Michi Masuya
摘要： Liquid cooled stator jacket and a method for extruding a billet of aluminum alloy to form a stator jacket. The billet of aluminum alloy is extruded to form a plurality of conduits along the longitudinal direction of the billet and to form a plurality of thickness lightening holes along the longitudinal direction of the billet. The thickness lightening holes are equally spaced in a circumferential direction of the billet and the conduits are arranged on both sides of each of the thickness lightening holes.
摘要翻译： PCT No.PCT / JP92 / 01288 Sec。 371日期：1993年5月28日 102（e）日期1993年5月28日PCT提交1992年10月5日PCT公布。 出版物WO93 / 07670 日期：1993年04月15日。液体冷却定子护套和铝合金坯料挤压成型定子夹套的方法。 将铝合金坯料挤压成沿着钢坯的长度方向形成多个管道，并沿钢坯的长度方向形成多个厚度的减重孔。 厚度减轻孔在坯料的圆周方向上等间隔，并且导管布置在每个厚度减轻孔的两侧。
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公开(公告)号：US06940192B2
公开(公告)日：2005-09-06
申请号：US10643872
申请日：2003-08-20
申请人： Yukio Katsuzawa , Michi Masuya , Yasuyuki Nakazawa , Taku Oohara
发明人： Yukio Katsuzawa , Michi Masuya , Yasuyuki Nakazawa , Taku Oohara
IPC分类号： H02K1/32 , H02K5/04 , H02K5/20 , H02K7/00 , H02K9/04 , H02K9/06 , H02K9/197 , H02K9/24 , H02K9/00
摘要： An air-cooled motor has a motor body in which a through hole is formed in a rotary shaft, a supply section for supplying a fluid to the through hole, a cylindrical member surrounding the supply section, and a cooling fan provided on the side opposite the motor body with respect to the cylindrical member. A window is provided in the cylindrical member or at least a part of the cylindrical member is made of a transparent material so that the supply section can be visually observed.
摘要翻译： 风冷式电动机具有：电动机主体，其在旋转轴上形成通孔;供给部，其向所述通孔供给流体;圆筒状部件，其围绕所述供给部;以及冷却风扇， 马达主体相对于圆柱形构件。 在圆柱形构件中设置有窗口，或者圆柱形构件的至少一部分由透明材料制成，从而可以目视观察供应部分。
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