摘要:
In the vehicular AC power generator of the present invention, a part (63) where the blade pitch is narrow and a part (62) where the blade pitch is wide are provided in the circumferential direction on a fan (11b) fixed in an annular shape to a pole core (10). In the narrow-pitch part (63), two or more blade portions (54) are provided in contact with each of the end surfaces of the two or more adjacent claw magnetic poles (60). This configuration can suppress deformation of the blade portions (54) caused by rotation and can suppress increase in noise occurring from the fan (11b).
摘要:
A magnetic core (63) of an electric motor (100) includes a central portion (65) and a plurality of teeth extending outwardly from the central portion (65), the teeth disposed along a circumferential direction of the central portion (65). Each tooth includes a tooth body (67), two neck portions (71) and two crown portions (69), the neck portions (71) respectively connecting the crown portions (69) to the tooth body (67), the two crown portions (69) respectively extending beyond opposite sides of the tooth body (67). Each of the two neck portions (71) of each tooth has a minimum width which is 0.1∼0.3 times of the width of the tooth body (67). The present invention further provides an electric motor (100) that employs the magnetic core (63) which can increase the peak value of the cogging torque of the motor.
摘要:
Provided is an electric motor capable of stabilizing a preload applied to a bearing by an annular spring and effectively retarding degradation of the annular spring. The electric motor includes a motor shaft (11), a rotor (12), a stator (13), a housing (14) containing the rotor (12) and the stator (13) in a posture where the motor shaft (11) extends vertically, an upper bearing (17) and a lower bearing (18) supporting the motor shaft (11), and an annular spring (21) applying a downward preload to the upper bearing (17). The lower bearing (18) is fixed to the motor shaft (11) and the housing (14). The housing (14) has a load-receiving surface (22) receiving an upward thrust load overcoming the preload from the upper bearing (17).
摘要:
An illustrative energy storage system includes an energy storage device, a processor coupled to the energy storage device, and a memory coupled to the processor. The memory is configured to store instructions adapted for execution by the processor to control and monitor operation of the energy storage device. The instructions are arranged into functional modules. Each functional module is associated with a memory cache in the memory. Control processes depending on the functional module read last known values from the associated memory cache. Reading last known values from the associated memory enables changes to the functional modules without shutting down the energy storage device.
摘要:
Es wird eine Antriebsmaschine (1) zum Antreiben eines Tragmittels (3) in einer Aufzuganlage (100) vorgeschlagen. Die Antriebsmaschine (1) weist eine von einem Motor (7) anzutreibende bewegliche Komponente (9), eine statische Komponente (10) und ein Lager (27) zum Lagern der beweglichen Komponente (9) relativ zur statischen Komponente (10) auf. Dabei ist für eine Schmierung der beweglichen Komponente (9) ein elektrisch leitfähiger Schmierstoff in dem Lager (27) aufgenommen. Durch das Vorsehen eines elektrisch leitfähigen Schmierstoffs in dem Lager (27) kann vermieden werden, dass insbesondere bei Verwendung eines ummantelten Riemens (25) als Tragmittel (3) generierte elektrische Ladungen sich an einer beweglichen Komponente wie beispielsweise einer Treibscheibe (23) anreichern können und es aufgrund dadurch bewirkter hoher elektrischer Spannungen zu schädigenden Überschlägen und zu Elektropitting kommt.
摘要:
An interior permanent magnet motor includes a housing, a ring-shaped stator fixed in the housing and having a coil which generates a magnetic field when a voltage is applied, a rotor being disposed for rotation within, and relative to the ring-shaped stator. The rotor includes a shaft rotatably supported by the housing, a magnetic plate pair disposed about an outer circumference of the rotor. A triangular member is disposed between the magnetic plate pair and the shaft. The triangular member having a flat surface mated to each inner end of each magnetic plate of the magnetic plate pair. The triangular member directs flux produced by rotation of the rotor toward the stator.
摘要:
Provided is an electric motor capable of stabilizing a preload applied to a bearing by an annular spring and effectively retarding degradation of the annular spring. The electric motor includes a motor shaft (11), a rotor (12), a stator (13), a housing (14) containing the rotor (12) and the stator (13) in a posture where the motor shaft (11) extends vertically, an upper bearing (17) and a lower bearing (18) supporting the motor shaft (11), and an annular spring (21) applying a downward preload to the upper bearing (17). The lower bearing (18) is fixed to the motor shaft (11) and the housing (14). The housing (14) has a load-receiving surface (22) receiving an upward thrust load overcoming the preload from the upper bearing (17).