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。

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

IPC分类号： H02K5/04 ,  H02K7/14 ,  H02K15/14 ,  H02K15/16

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。

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

IPC分类号： H02K5/20 ,  H02K9/19 ,  H02K1/20 ,  H02K9/00

CPC分类号： H02K9/19 ,  H02K5/20

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。

公开(公告)号：US5538067A

公开(公告)日：1996-07-23

申请号：US302776

申请日：1994-09-20

申请人： Kosei Nakamura ,  Yukio Katsuzawa ,  Michi Masuya ,  Junichi Nagai

发明人： Kosei Nakamura ,  Yukio Katsuzawa ,  Michi Masuya ,  Junichi Nagai

IPC分类号： H02K17/16 ,  H02K15/00 ,  B22D19/12

CPC分类号： B22D19/0054 ,  H02K15/0012

摘要： A holding member (22) which can hold a predetermined axial-length laminated core member by pressing down both axial end faces thereof is used to hold a short laminated core member (24) and a spacing element (48) having a thickness generally equal to the difference between the axial lengths of those laminated core members. The spacing element is disposed at a position between one axial end face of the laminated core member (24) and a lid element (32) of the holding member (22). The laminated core member (24) and the spacing element (48) are both held by the holding member (22) and are introduced into the mold (20) to form a conductor portion integrally with a predetermined axial-length laminated core member held by the holding member (22). In this state, molten metal is poured into slots (38) of the laminated core member (24) and annular cavities (44, 46), and thus a conductor portion is formed integrally with the laminated core member (24) when the molten metal is set.

摘要翻译： PCT No.PCT / JP94 / 00082 Sec。 371日期1994年9月20日 102（e）1994年9月20日PCT 1994年1月21日PCT PCT。 第WO94 / 17581号公报 日期1994年8月4日通过按压其两个轴向端面能够保持预定的轴向长度的叠层铁心构件的保持构件（22）用于保持短的层叠铁芯构件（24）和间隔元件（48），其具有 厚度通常等于那些层叠铁芯构件的轴向长度之差。 间隔元件设置在层叠铁芯构件（24）的一个轴向端面与保持构件（22）的盖元件（32）之间的位置。 层叠铁心构件（24）和间隔构件（48）均由保持构件（22）保持，并被引入到模具（20）中，以与预定的轴向长度的叠层铁心构件一体地形成导体部分， 保持构件（22）。 在这种状态下，将熔融金属注入到叠层铁芯件（24）的槽（38）和环形空腔（44,46）中，因此当熔融金属 被设置。

公开(公告)号：US06255797B1

公开(公告)日：2001-07-03

申请号：US08894843

申请日：1997-09-04

申请人： Kosei Nakamura ,  Michi Masuya ,  Hisashi Maeda ,  Yohei Arimatsu

发明人： Kosei Nakamura ,  Michi Masuya ,  Hisashi Maeda ,  Yohei Arimatsu

IPC分类号： H02P126

CPC分类号： H02P25/20 ,  H02P29/50

摘要： A reactor (32) and a switch (35) are interposed in parallel between U-phase, V-phase and W-phase on a power source side (31) and U, V and W terminals on a motor side (33). A changeover switch )37) is interposed between Z, X and Y terminals on the motor side (33) and the U, V and W terminals on the motor side (33). When the switch (35) is set to OFF, the changeover switch (37) is set to ON, and the switch (35) is set up so as to interconnect Z, X and Y terminals, windings of the motor are set up in the form of Y-connection, so that the motor and a power source are connected directly to each other. On the other hand, when the changeover switch (37) is switched over to OFF, and the switch (35) is set up so as to interconnect Z, X and Y terminals to the U, V and W terminals, the windings of the motor are set up in the form of &Dgr;-connection, so that the motor and the power source are connected together through the reactor (32).

摘要翻译： 在电源侧（31）和电动机侧（33）上的U，V和W端子之间并联插入电抗器（32）和开关（35）并联在U相，V相和W相之间。 转换开关）37）插入在电动机侧（33）上的Z，X和Y端子以及电动机侧（33）上的U，V和W端子之间。 当开关（35）设定为OFF时，切换开关（37）设定为ON，开关（35）被设定为使Z，X，Y端子相互连接，电机的绕组成立 Y形连接形式，使电机和电源直接相连。 另一方面，当切换开关（37）切换到OFF时，开关（35）被设置成将Z，X和Y端子连接到U，V和W端子时，绕组 电动机以DELTA连接的形式设置，使得电动机和电源通过反应器（32）连接在一起。

公开(公告)号：US06333578B1

公开(公告)日：2001-12-25

申请号：US09254006

申请日：2000-03-01

申请人： Kosei Nakamura ,  Michi Masuya ,  Hisashi Maeda ,  Shinpei Uemura

发明人： Kosei Nakamura ,  Michi Masuya ,  Hisashi Maeda ,  Shinpei Uemura

IPC分类号： H02K1712

CPC分类号： H02K17/14

摘要： An induction motor capable of obtaining a high power characteristic in a wide range without producing induced voltage. A winding for each phase is composed of a plurality of winding components having the same number of turns. When high torque is needed with low speed rotation, a Y-connection in which winding components for each phase are connected in series is formed as shown in FIG. 2a. For medium low speed rotation, a &Dgr;-connection in which winding components for each phase are connected in series is formed as shown in FIG. 2b. For medium high speed rotation, a Y-connection in which winding components for each phase are connected in parallel is formed as shown in FIG. 2c. For high speed rotation, a &agr;-connection in which winding components for each phase are connected in parallel is formed as shown in FIG. 2d. Using the entire winding for each phase, the number of turns is decreased stage by stage to switch from low speed rotation to high speed rotation. Since there is no unused part of windings, there is no problem of induced voltage. A fall in power at the time of switching the winding formation can be restrained, so that a high power characteristic can be obtained in a wide range.

摘要翻译： 一种能够在不产生感应电压的情况下在宽范围内获得高功率特性的感应电动机。 每相的绕组由具有相同匝数的多个绕组部件组成。 当低速旋转需要高扭矩时，如图3所示，形成其中各相的绕组部分串联连接的Y形连接。 2a。 对于中低速旋转，如图3所示，形成其中各相的绕组部分串联连接的DELTA连接。 2b。 对于中等高速旋转，如图3所示，形成并联连接各相的绕组部件的Y形连接。 2c。 为了高速旋转，如图3所示，形成其中各相的绕组部件并联连接的α连接。 2d。 对于每个相，使用整个绕组，匝数逐步减少，从低速旋转切换到高速旋转。 由于没有未使用的绕组部分，所以没有感应电压的问题。 可以抑制切换绕组形成时的功率下降，从而可以在宽范围内获得高功率特性。

公开(公告)号：US5780946A

公开(公告)日：1998-07-14

申请号：US874885

申请日：1997-06-13

申请人： Kosei Nakamura ,  Yukio Katsuzawa ,  Yasuyuki Nakazawa

发明人： Kosei Nakamura ,  Yukio Katsuzawa ,  Yasuyuki Nakazawa

IPC分类号： F04D25/08 ,  H02K5/22 ,  H02K9/16 ,  H02K1/32 ,  H02K9/06

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。

公开(公告)号：US5887643A

公开(公告)日：1999-03-30

申请号：US776018

申请日：1997-01-17

申请人： Kosei Nakamura ,  Yukio Katsuzawa ,  Minoru Kasama ,  Yasuyuki Nakazawa

发明人： Kosei Nakamura ,  Yukio Katsuzawa ,  Minoru Kasama ,  Yasuyuki Nakazawa

IPC分类号： H02K17/16 ,  B22D19/00 ,  H02K15/00 ,  B22D33/04 ,  B22D17/04 ,  B22D17/24

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）。

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

IPC分类号： H02K5/20 ,  H02K9/02 ,  H02K9/04 ,  H02K9/16 ,  H02K9/00 ,  H02K1/32

CPC分类号： H02K9/16 ,  H02K9/14

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。

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

IPC分类号： H02K1/32 ,  H02K5/20 ,  H02K9/06 ,  H02K9/16 ,  H02K9/26

CPC分类号： H02K5/20 ,  H02K1/32 ,  H02K9/16

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。