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31. 发明申请

WO1989005060A1 METHOD OF PROTECTING A MOTOR FROM OVERLOAD 审中-公开
标题翻译：保护电机从过载的方法
公开(公告)号：WO1989005060A1
公开(公告)日：1989-06-01
申请号：PCT/JP1988000992
申请日：1988-09-29
申请人： FANUC LTD , NAKAMURA, Kosei , KONO, Shinichi , TOKUOKA, Hiroshi
发明人： FANUC LTD
IPC分类号： H02P05/00
CPC分类号： H02H6/005
摘要： Utilizing the fact that the temperature of a motor (1) rises in proportion to the square of the drive current, the current for driving the motor (1) is sampled for every predetermined period of time, and moving average of the sampled drive currents is calculated to estimate overload condition for the motor (1) in order to protect the motor (1) in advance so that the motor (1) will not burn due to overload.
摘要翻译：利用马达（1）的温度与驱动电流的平方成比例地上升的事实，每隔预定的时间段对马达（1）的驱动电流进行采样，并且采样的驱动电流的移动平均值为计算为估计电机（1）的过载状况，以便预先保护电机（1），以使电机（1）由于过载而不会燃烧。

32. 发明申请

WO1996037037A1 APPARATUS FOR CASTING CONDUCTOR OF ROTOR OF INDUCTION MOTOR 审中-公开
标题翻译：用于铸造电动机转子导体的装置
公开(公告)号：WO1996037037A1
公开(公告)日：1996-11-21
申请号：PCT/JP1996001326
申请日：1996-05-20
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , KASAMA, Minoru , NAKAZAWA, Yasuyuki
发明人： FANUC LTD
IPC分类号： H02K17/16
CPC分类号： H02K15/0012 , B22D19/0054
摘要： A rotor core (12) of a cage rotor of an induction motor is accommodated in a recess (14) of a casting mold (18) of a casting apparatus (10). A composite cylinder apparatus (68) is fixedly disposed above the casting mold (18), that is, on the side opposite to the sprue, and the rotor core (12) is held at a predetermined position by one of the pistons (70) inside the recess (14). The other piston (72) locally pressurizes the molten metal packed into an end-ring cavity (66) defined between the rotor core (12) and the recess (14) on the side opposite to the sprue.
摘要翻译：感应电动机的笼式转子的转子芯（12）容纳在铸造装置（10）的铸模（18）的凹部（14）中。复合气缸装置（68）固定地设置在铸模（18）的上方，即与浇口相对的一侧，转子芯（12）由一个活塞（70）保持在预定位置，在凹部（14）内。另一个活塞（72）局部地加压填充在与浇口相对的一侧上限定在转子芯（12）和凹部（14）之间的端环腔（66）中的熔融金属。

33. 发明申请

WO1995024068A1 AIR-COOLED MOTOR 审中-公开
标题翻译：空气冷却电机
公开(公告)号：WO1995024068A1
公开(公告)日：1995-09-08
申请号：PCT/JP1995000352
申请日：1995-03-03
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , NAKAZAWA, Yasuyuki
发明人： FANUC LTD
IPC分类号： H02K09/04
CPC分类号： H02K9/16 , H02K1/20
摘要： An air-cooled motor (20) includes a rotor, a stator having a stator core (28), and front and rear support members (32, 34) disposed at both ends of the stator core (28) in the axial direction. A plurality of air passages (42) extending continuously in the axial direction are provided in each of the stator core (28) and the front and rear support members (32, 34). A centrifugal blower (50) is disposed behind the rear support member (34). Since the centrifugal blower (50) produces a large pressure rise, sufficient air around the motor can be sent into the air passages (42) having small diameters to perform an effective cooling function. A driving portion (56) of the blower (50) is directly fixed by bolts (72) to the rear support member (34). Therefore, the wiring (74) of the driving portion (56) are connected to a terminal box (48) through the internal space of the motor (20). In such a way, the blast capacity is improved and the moisture-proofness of the terminal box is improved.
摘要翻译：风冷式电动机（20）具有转子，具有定子铁芯（28）的定子以及沿轴向配置在定子铁芯（28）的两端的前后支撑部件（32,34）。定子铁芯（28）和前后支撑构件（32,34）中的每一个设置有沿轴向方向连续延伸的多个空气通道（42）。离心式鼓风机（50）设置在后支撑构件（34）后面。由于离心式鼓风机（50）产生大的压力上升，所以可以将电动机周围的足够空气送入具有小直径的空气通道（42）中，以实现有效的冷却功能。鼓风机（50）的驱动部（56）通过螺栓（72）直接固定在后支撑部件（34）上。因此，驱动部（56）的配线（74）通过电动机（20）的内部空间与接线盒（48）连接。这样，能够提高喷射能力，提高接线盒的防潮性。

34. 发明申请

WO1994001916A1 STATOR WINDING STRUCTURE OF MOTOR 审中-公开
标题翻译：电机定子绕组结构
公开(公告)号：WO1994001916A1
公开(公告)日：1994-01-20
申请号：PCT/JP1993000943
申请日：1993-07-08
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , NAGAI, Junichi
发明人： FANUC LTD
IPC分类号： H02K03/34
CPC分类号： H02K3/487 , H02K3/34
摘要： A stator winding structure according to the present invention includes a slot liner (12) having a high heat conductivity and inserted between exciting windings (18) held in a slot (8) formed in a stator core (6), and a wedge (14) for packing the exciting windings (18) densely. The slot liner (12) having a high heat conductivity promotes the heat transfer between the exciting windings (18) and the stator core (6), and the wedge (14) serves to sufficiently pack the exciting windings (18) and promotes cooling of the exciting windings (18).
摘要翻译：根据本发明的定子绕组结构包括具有高导热性并插入在形成在定子芯（6）中的槽（8）中的励磁绕组（18）之间的槽衬（12）和楔（14））用于密集地包围励磁绕组（18）。具有高导热性的槽衬垫（12）促进励磁绕组（18）和定子铁芯（6）之间的热传递，并且楔形件（14）用于充分地包装励磁绕组（18）并促进冷却励磁绕组（18）。

35. 发明申请

WO1993001653A1 METHOD AND APPARATUS FOR CONTROLLING AND DRIVING INDUCTION MOTOR 审中-公开
标题翻译：用于控制和驱动电动机的方法和装置
公开(公告)号：WO1993001653A1
公开(公告)日：1993-01-21
申请号：PCT/JP1992000855
申请日：1992-07-06
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , NAKAZAWA, Yasuyuki
发明人： FANUC LTD
IPC分类号： H02P07/36
CPC分类号： H02P25/18
摘要： A method and apparatus for controlling and driving an induction motor, by which its constant output power can be generated in a wide rotating range. Each of the star-connected windings of the induction motor is divided into two parts, (5t and 3t), at a predetermined ratio of their numbers of turns (e.g. 5:3). At a low speed, only changeover switches MC2 are closed, and through the divided windings (5t and 3t), currents flow. At a medium speed, only changeover switches MC3 are closed, and only through the divided windings (5t), currents flow. At a high speed, only changeover switches MC1 are closed, and only through the divided windings (3t), currents flow. That is, the induction motor is driven, by changing over the number of turns of each winding into one of three stages, so as to make it large at a low speed and make it small as the speed of the motor is increased.

36. 发明申请

WO1992006529A1 LIQUID COOLING DEVICE OF MOTOR 审中-公开
标题翻译：电机液体冷却装置
公开(公告)号：WO1992006529A1
公开(公告)日：1992-04-16
申请号：PCT/JP1991001343
申请日：1991-10-03
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , NAKAZAWA, Yasuyuki
发明人： FANUC LTD
IPC分类号： H02K09/19
CPC分类号： H02K9/19
摘要： A liquid cooling device of a motor which can effectively cool the stator core of a motor and can keep high sealability without lowering rigidity of a motor housing. This device includes a stator core (14) so disposed as to encompass the rotor (10) of the motor, and produced by laminating a plurality of thin sheets (22) made of a magnetic material and bonding them by a resin material, a front housing (16) and a rear housing (18) disposed respectively at the front and rear end portions of the motor in its axial direction, supporting the rotary shaft (12) of the rotor (10) and clamping the stator core (14), a plurality of tie bolts (34) for fastening the front housing (16) and the rear housing (18) while pulling them toward each other and fixing them to the stator core (14), and a plurality of cooling liquid passages (28) defined inside the stator core (14) so as to permit the passage of cooling liquid. When the front housing (16) and the rear housing (18) are fixed to the stator core (14) by a plurality of tie bolts (34), compressive force always acts on the stator core (14) in the axial direction and does not lower sealability of the cooling liquid passages (28) defined inside the stator core (14).

37. 发明申请

WO1991019345A1 CONSTRUCTION FOR COOLING MOTOR 审中-公开
标题翻译：冷却电机结构
公开(公告)号：WO1991019345A1
公开(公告)日：1991-12-12
申请号：PCT/JP1991000716
申请日：1991-05-28
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , MASUYA, Michi
发明人： FANUC LTD
IPC分类号： H02K09/18
CPC分类号： H02K9/12
摘要： In order to increase the power of a motor, it is necessary to efficiently cool the motor, and there is adopted a construction for cooling the interior of the motor with clean air. Namely, the cooling construction is of such an arrangement that a piping (18) communicating with the interior of the motor to circulate therein the air is provided outside a motor casing (14), liquid is led out to the outside from a flow path (34) of the liquid for cooling a stator (32), made to flow into a piping (20) for heat exchange, which passes through the said piping (18) and returned to the said flow path (34) to cool the air circulating in the piping (18).

38. 发明申请

WO1990001388A1 DEVICE FOR CONFIRMING THE TAP OPERATION IN THE RIGID TAPPING 审中-公开
标题翻译：用于确认刚性皮带中的TAP操作的装置
公开(公告)号：WO1990001388A1
公开(公告)日：1990-02-22
申请号：PCT/JP1989000747
申请日：1989-07-27
申请人： FANUC LTD , NAKAMURA, Kosei , NUMAI, Kazuhisa
发明人： FANUC LTD
IPC分类号： B23G01/16
CPC分类号： B23G1/16 , G05B19/186 , G05B19/4062 , G05B2219/34457 , G05B2219/42268 , G05B2219/45216 , G05B2219/50234 , Y10T408/16
摘要： The female threading operation is carried out by driving a tap (14) using a built-in main shaft motor (12) which directly drives the tap (14) without using transmission mechanism and using another motor (22) moves the tap together with the main shaft motor (12) in the lengthwise direction (Z) of the tap. The two motors (12, 22) are controlled for their rotation in synchronism with each other, and a difference operation unit (32) always monitors the difference between an instructed speed of revolution sent from a synchronism control unit (36) to the built-in main shaft motor (12) and a practical speed of revolution of the built-in main shaft motor detected by a revolution detector (16). When the difference becomes greater than a predetermined value, a light-emitting diode (40) or the like produces an alarm. Therefore, the female threading operation is carried out at high speeds maintaining high threading precision, and percent defective is decreased.

39. 发明申请

WO1994017581A1 METHOD OF AND APPARATUS FOR MANUFACTURING CAGE ROTOR OF INDUCTION MOTOR 审中-公开
标题翻译：电动机笼式转子制造方法及装置
公开(公告)号：WO1994017581A1
公开(公告)日：1994-08-04
申请号：PCT/JP1994000082
申请日：1994-01-21
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , MASUYA, Michi , NAGAI, Junichi
发明人： FANUC LTD
IPC分类号： H02K17/16
CPC分类号： B22D19/0054 , H02K15/0012
摘要： A support member (22) capable of holding a laminated core member having a predetermined axial length with opposite axial end faces of the core member held down is used to hold a small size laminated core member (24) having a smaller axial length and a spacing element (48) having a thickness substantially equal to the difference in axial length between these laminated core members and interposed between one axial end face of the laminated core member (24) and a cap element (32) of a support member (22). Then the laminated core member (24) and the spacing element (48) held by the support member (22) are received in a mold (20) which can form a conductor portion integrally with the laminated core member which is held by the support member (22) and has the predetermined length. With this position kept, molten metal is poured into slots (38) of the laminated core member (24) and annular spaces (44, 46) to solidify for integral forming of a conductor portion on the laminated core member (24).
摘要翻译：使用能够保持具有预定的轴向长度的层叠铁芯构件的支撑构件（22），该预定的轴向长度与芯构件的相对的轴向端面向下压住，以保持具有较小轴向长度和间隔的小尺寸叠层铁心构件（24）元件（48）的厚度基本上等于这些层叠铁心构件之间的轴向长度差，并且介于层压铁芯构件（24）的一个轴向端面和支撑构件（22）的盖元件（32）之间。然后，叠层铁心构件（24）和由支撑构件（22）保持的间隔元件（48）被容纳在模具（20）中，模具（20）可以与由支撑构件保持的层叠铁芯构件一体地形成导体部分（22）并具有预定长度。在保持该位置的情况下，将熔融金属注入到层叠铁芯构件（24）的槽（38）和环形空间（44,46）中以固化，以便在层叠铁心构件（24）上形成导体部分。

40. 发明申请

WO1994014224A1 ROTOR FOR ELECTRIC MOTOR 审中-公开
标题翻译：电动机转子
公开(公告)号：WO1994014224A1
公开(公告)日：1994-06-23
申请号：PCT/JP1993001812
申请日：1993-12-14
申请人： FANUC LTD , NAKAMURA, Kosei , KATSUZAWA, Yukio , NAGAI, Junichi
发明人： FANUC LTD
IPC分类号： H02K05/173
CPC分类号： H02K5/1732 , F16C19/06 , F16C19/525 , F16C35/073 , F16C2380/26
摘要： This rotor prevents the heat generated in its conductor due to copper loss from being transferred to the bearings through the shaft, and contributes to provide a high torque motor without shortening the life of the bearings. The rotor (10) comprises a laminated iron core (12), a conductor (14) attached to the laminated core (12), and a shaft (16) passed through the core (12) and fixed. The shaft (16) is rotatively supported by a pair of bearings (22) held in predetermined positions outside the axial ends of the laminated core (12) in a housing assembly. To each of the parts of the shaft (16) supported by the bearings (22), a generally cylindrical cover (26) made of a hard material having a low heat conductivity is fixed. The outside surfaces of the sleeves (28) of the covers (26) are engaged with the inner rings (38) of the bearings (22) in order to prevent heat from being transferred between the shaft (16) and the bearings (22).
摘要翻译：该转子防止由于铜损失导致的导体中的热量通过轴传递到轴承，并且有助于提供高扭矩电动机而不缩短轴承的寿命。转子（10）包括层叠的铁芯（12），连接到叠层铁心（12）的导体（14）和穿过芯部（12）并固定的轴（16）。轴（16）由保持在壳体组件中的层叠铁芯（12）的轴向端外侧的预定位置的一对轴承（22）可旋转地支撑。由轴承（22）支撑的轴（16）的各部分固定有由导热系数低的硬质材料构成的大致圆筒状的盖（26）。盖（26）的套筒（28）的外表面与轴承（22）的内圈（38）接合，以防止热量在轴（16）和轴承（22）之间传递，。

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