专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5780946A Air-cooled type electric motor 失效
标题翻译：风冷式电动机
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。

2. 发明授权

US5294356A Polycarbonates, uses thereof, processes for preparing and purifying same 失效
标题翻译：聚碳酸酯，其用途，其制备和纯化方法
公开(公告)号：US5294356A
公开(公告)日：1994-03-15
申请号：US856956
申请日：1992-05-14
申请人： Masahide Tanaka , Yoshihisa Kiso , Kazunori Takahata , Tetsuo Hayashi , Kenji Shimamoto , Kinya Mizui , Tadaaki Fujimoto , Kosei Nakamura
发明人： Masahide Tanaka , Yoshihisa Kiso , Kazunori Takahata , Tetsuo Hayashi , Kenji Shimamoto , Kinya Mizui , Tadaaki Fujimoto , Kosei Nakamura
IPC分类号： C07C69/96 , C07H15/08 , C08G64/02 , C10M105/48 , C10M171/00 , H01B3/20 , C10M129/02 , C09K5/00
CPC分类号： H01B3/20 , C07C69/96 , C07H15/08 , C08G64/0208 , C10M105/48 , C10M171/008 , C10M2207/32 , C10M2209/00 , C10M2209/02 , C10M2209/10 , C10N2240/00 , C10N2240/04 , C10N2240/042 , C10N2240/044 , C10N2240/046 , C10N2240/08 , C10N2240/201 , C10N2240/202 , C10N2240/22 , C10N2240/30 , C10N2240/402 , C10N2240/403 , C10N2240/404 , C10N2240/405 , C10N2240/406 , C10N2240/407 , C10N2240/408 , C10N2240/409 , C10N2240/50 , C10N2240/52 , C10N2240/54 , C10N2240/56 , C10N2240/58 , C10N2240/60 , C10N2240/66
摘要： The polycarbonates of the present invention include those of sucrose series having a specific cyclic structure, those of oligosaccharide and monosaccharide series other than the sucrose series, those derived from specific saccharides having no cyclic structure, those having a skeletal structure of pentaerythritol, neopentyl glycol or trimethylolmethane, and specific dicarbonates.The lubricating oil and electrical insulating oil of the invention contain the above-mentioned polycarbonates.The polycarbonates of the invention are excellent in compatibility with Freon R-134a (HFC) as well as in lubricating properties, detergency and electrical insulating properties, and are capable of providing lubricating oil for refrigerator, automotive engine oil, automotive gear oil, lubricating oil for rolling and lubricating oil for fiber, especially lubricating oil for which electrical insulating properties are required, and electrical insulating oil.
摘要翻译： PCT No.PCT / JP91 / 01220 Sec。 371日期：1992年5月14日 102（e）日期1992年5月14日PCT 1991年9月13日PCT PCT。出版物WO92 / 05140 本发明的聚碳酸酯包括具有特定环状结构的蔗糖系列，除了蔗糖系以外的寡糖和单糖系的蔗糖系，具有不具有环状结构的特定糖的那些，具有骨架的季戊四醇，新戊二醇或三羟甲基甲烷的结构和特定的二碳酸酯。本发明的润滑油和电绝缘油含有上述聚碳酸酯。本发明的聚碳酸酯与氟利昂R-134a（HFC）的相容性以及润滑性能，去污力和电绝缘性能优良，能够为冰箱，汽车发动机油，汽车齿轮油，润滑油提供润滑油用于纤维的滚动和润滑油，特别是需要电绝缘性能的润滑油和电绝缘油。

3. 发明授权

US5070291A Connection switching apparatus for three-phase induction motor 失效
标题翻译：三相感应电机的连接切换装置
公开(公告)号：US5070291A
公开(公告)日：1991-12-03
申请号：US393918
申请日：1989-08-04
申请人： Kosei Nakamura , Kazuhisa Numai
发明人： Kosei Nakamura , Kazuhisa Numai
IPC分类号： H02P23/00 , H02P1/32 , H02P25/18
CPC分类号： H02P25/18 , H02P1/32
摘要： Low rotational speed characteristics of a three-phase induction motor driven by a PWM inverter are improved by rapid .DELTA.-Y connection switching by semiconductor switches (1, 2, 3, 4, 5), for example, TRIAC's.
摘要翻译： PCT No.PCT / JP88 / 01277 Sec。 371日期1989年8月4日 102（e）日期1989年8月4日PCT提交1988年12月16日PCT公布。出版物WO89 / 06065 日期：1989年6月29日。由PWM逆变器驱动的三相感应电动机的低转速特性通过半导体开关（1,2,3,4,5）的快速DELTA-Y连接切换来提高，例如， TRIAC的。

4. 发明授权

US5062744A Apparatus for confirming movement of tap when rigid tapping 失效
标题翻译：用于确认刚性攻击时TAP运动的装置
公开(公告)号：US5062744A
公开(公告)日：1991-11-05
申请号：US474758
申请日：1990-03-26
申请人： Kosei Nakamura , Kazuhisa Numai
发明人： Kosei Nakamura , Kazuhisa Numai
IPC分类号： B23G1/16 , G05B19/18 , G05B19/4062
CPC分类号： B23G1/16 , G05B19/186 , G05B19/4062 , G05B2219/34457 , G05B2219/42268 , G05B2219/45216 , G05B2219/50234 , Y10T408/16
摘要： When tapping is effected by a tap driven by a built-in spindle motor (12) and another motor (22), which built-in spindle motor directly drives the tap (14) to rotate without a transmission mechanism, and which other motor drives the tap (14) with the built-in spindle motor (12) to proceed along a longitudinal direction (Z), the two motors (12, 22) are synchronously controlled, and the difference between a commanded rotational speed output to the built-in spindle motor (12) from a synchronous control unit (36) and an actual rotational speed of the built-in spindle motor detected by a detector (16) is calculated by a difference calculator (32), and an alarm is output, for example, by a light-emitting diode (40), when the difference is higher than a prescribed value. Thereby, a high-speed tapping can be effected, the number of defective products can be reduced, and the threads accurately tapped.

5. 发明授权

US06333578B1 Induction motor 有权
标题翻译：感应电动机
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。

6. 发明授权

US5637829A Terminal box for motor and method of positioning a conduit therein 失效
标题翻译：电机接线盒和定位导管的方法
公开(公告)号：US5637829A
公开(公告)日：1997-06-10
申请号：US335396
申请日：1994-11-03
申请人： Kosei Nakamura , Kazuhisa Numai , Hideki Oka
发明人： Kosei Nakamura , Kazuhisa Numai , Hideki Oka
IPC分类号： H02G3/08 , H02G3/18 , H02K5/22
CPC分类号： H02G3/085 , H02G3/18
摘要： A terminal box for a motor is made of a thick plastic plate and includes a plurality of closed windows provided on the terminal box. Each of the closed windows is made of a thin plastic plate. The plurality of closed windows are each surrounded by a groove which is one of a plurality of concentric circular grooves. The terminal box is also provided with a plurality of radial linear grooves passing through a center of the concentric circular grooves to produce an open window for positioning a conduit therein when one of the plurality of closed windows is broken.
摘要翻译：一种用于电动机的接线盒由厚的塑料板制成并且包括设置在接线盒上的多个封闭的窗口。每个封闭的窗户由薄塑料板制成。多个封闭窗口中的每一个都被多个同心圆形沟槽中的一个凹槽围绕。接线盒还设置有多个径向线性沟槽，其穿过同心圆形槽的中心，以产生用于在多个关闭窗口中的一个被破坏时将导管定位在其中的开放窗口。

7. 发明授权

US5134332A AC spindle motor and method of changing rotating speed of same 失效
标题翻译：交流电主轴及其转速改变方法
公开(公告)号：US5134332A
公开(公告)日：1992-07-28
申请号：US499335
申请日：1990-07-18
申请人： Kosei Nakamura , Yoshiyuki Hayashi , Kazuhisa Numai , Masami Kimijima
发明人： Kosei Nakamura , Yoshiyuki Hayashi , Kazuhisa Numai , Masami Kimijima
IPC分类号： H02K17/12 , H02K17/14
CPC分类号： H02K17/14
摘要： An ac spindle motor (10) for driving a spindle motor of a machine tool provided with a rotor (14) having an output shaft (12) connected to the spindle, and a stator (16) surrounding the rotor and having a laminated core (20) serving as a yoke, and stator winding assemblies of three phases (U-phase, V-phase, W-phase). The stator winding assembly of each phase (18u, 18v, 18w) has: windings (C.sub.2, C.sub.4) of a first group which are energized for a rotation of the spindle in both a low-speed range not higher than a given speed, and a high-speed range above the given speed; windings (C.sub.1, C.sub.3) of a second group energized only for a rotation of the spindle in the low-speed range; and electrical contact means (S1, S2, S3, S4) controlled so that the windings (C.sub.1, C.sub.2, C.sub.3, C.sub.4) of the first and second groups are energized to generate a first multipolar revolving magnetic field for the rotation of the spindle in the low-speed range, and so that only the windings (C.sub.2, C.sub.4) of the first group are energized to generate second multipolar revolving magnetic field having magnetic poles less than those of the first multipolar revolving magnetic field for the rotation of the spindle in the high-speed range. The operating mode of the ac spindle motor is changed between a high-speed mode and a low-speed mode by changing the ampere-turn of the windings and the number of poles of the revolving magnetic field.

8. 发明授权

US5068587A Spindle drive control apparatus for a machine tool 失效
标题翻译：用于机床的主轴驱动控制装置
公开(公告)号：US5068587A
公开(公告)日：1991-11-26
申请号：US393905
申请日：1989-08-01
申请人： Kosei Nakamura , Shinichi Kono , Kazuhisa Numai
发明人： Kosei Nakamura , Shinichi Kono , Kazuhisa Numai
IPC分类号： H02P23/00 , H02P25/18
CPC分类号： H02P25/18
摘要： Provided is a spindle drive control apparatus which is provided with a single three-phase spindle motor (60) for rotatingly driving a spindle (50) of a machine tool and a solenoid relay (70) for switching the phase windings (U, V, W) of the motor between a delta (.DELTA.) and star (Y) state and which switches the phase windings to the delta connection when rotating the spindle (50) at high speed for heavy duty cutting work and switches to the star connection for generating the high torque when rotating at a superlow speed (for example, 0.5 rpm) for contouring machining work etc. In this way, it becomes possible to handle the machining work performed in the past with two types of motor by using just a single motor, thus contributing to reduced costs.

9. 发明授权

US5010286A Method of synchronous control of spindle motor and feed motor 失效
标题翻译：主轴电机和进给电机的同步控制方法
公开(公告)号：US5010286A
公开(公告)日：1991-04-23
申请号：US365158
申请日：1989-05-08
申请人： Kosei Nakamura , Shinichi Kono , Kazuhisa Numai , Masami Kimijima
发明人： Kosei Nakamura , Shinichi Kono , Kazuhisa Numai , Masami Kimijima
IPC分类号： G05D13/62 , G05B19/18
CPC分类号： G05B19/186 , G05B2219/42186 , G05B2219/45216 , G05B2219/49295
摘要： When a spindle (10) of a machine tool is rotated and moved relative to a workpiece linearly along an axis (Z) thereof during a machining process such as screw cutting, a spindle servomotor (12) and a feed servomotor (22), each of which is the primary drive, must be rotated synchronously. In general, the spindle servomotor directly drives the spindle without a reduction gear, and the feed servomotor feeds a spindle head (18) through reduction gears (26, 28). Therefore, in general, the synchronous work is controlled in accordance with an acceleration and deceleration capacity of the spindle servomotor. Consequently, the spindle servomotor is rotated along the torque limit curve line (L1, L2) to drive the spindle, to thereby effect the synchronous work at a high efficiency.
摘要翻译： PCT No.PCT / JP88 / 00907 Sec。 371日期1989年5月8日 102（e）日期1989年5月8日PCT申请日1988年9月9日PCT公布。出版物WO89 / 02618 当机床的主轴（10）在诸如螺旋切削的加工过程中沿其轴线（Z）相对于工件线性地旋转和移动时，主轴伺服电动机（12）和每个主驱动器的进给伺服电动机（22）必须同步旋转。通常，主轴伺服电动机直接驱动主轴而没有减速齿轮，进给伺服电动机通过减速齿轮（26,28）供给主轴头（18）。因此，通常，根据主轴伺服电动机的加减速能力来控制同期动作。因此，主轴伺服电动机沿着转矩极限曲线（L1，L2）旋转以驱动主轴，从而以高效率进行同步工作。

10. 发明授权

US4580471A Motor-incorporated spindle head unit 失效
标题翻译：电动机主轴头单元
公开(公告)号：US4580471A
公开(公告)日：1986-04-08
申请号：US494328
申请日：1983-05-13
申请人： Shigeaki Oyama , Kosei Nakamura , Yoshikazu Takano , Takashi Yoshida
发明人： Shigeaki Oyama , Kosei Nakamura , Yoshikazu Takano , Takashi Yoshida
IPC分类号： B23Q5/10 , B23Q11/12 , H02K9/00 , H02K9/04 , B23B19/02
CPC分类号： B23Q11/127 , B23Q5/10 , H02K9/00 , H02K9/04 , Y10T408/95 , Y10T409/303976 , Y10T409/309408 , Y10T82/2561
摘要： A motor-incorporated spindle head unit is provided with a rotatable spindle on which a rotor assembly of the drive motor is fixedly mounted. A stator assembly of the drive motor is arranged around the rotor assembly and is fixed to a housing of the spindle head unit. A heat insulating system for preventing heat transfer from the stator assembly of the drive motor to the spindle as well as the bearings supporting the spindle is arranged between the drive motor and the front part of the spindle. The heat insulating system uses the flow of air for forming a heat insulator during the operation of the spindle head unit. A cooling system for cooling the stator assembly of the drive motor is also incorporated in the housing of the spindle head unit.
摘要翻译：具有电动机的主轴头单元设置有可旋转主轴，驱动电机的转子组件固定在该主轴上。驱动马达的定子组件布置在转子组件的周围，并固定在主轴头单元的壳体上。用于防止从驱动马达的定子组件到主轴以及支撑主轴的轴承的热传递的绝热系统布置在驱动马达和主轴的前部之间。绝热系统在主轴头单元的操作期间使用用于形成绝热体的空气流。用于冷却驱动马达的定子组件的冷却系统也结合在主轴头单元的壳体中。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式