摘要:
In a rotating electrical machine, when a stator winding is wound in concentrated winding, an improvement in performance is achieved by reducing a magnetomotive force harmonic without reducing a fundamental wave magnetic flux generated by a stator. A rotating electrical machine (10) includes a rotor (18), and two stators (14, 16) opposed with the rotor (18) being interposed therebetween either on both sides of the rotor (18) in the axial direction or on both sides of the rotor (18) in the radial direction. Stator windings (22) provided in a plurality of portions in the circumferential direction of each stator (14, 16) are wound in concentrated winding. The directions of magnetic fluxes generated by stator windings (22) having the same phase in the stators (14, 16) are in mutually opposite directions with respect to either the axial direction or the radial direction. The stator windings (22) having the same phase in the stators (14, 16) are arranged to be shifted from each other by 180 degrees in electrical angle in the circumferential direction.
摘要:
In a rotating electrical machine, when a stator winding is wound in concentrated winding, an improvement in performance is achieved by reducing a magnetomotive force harmonic without reducing a fundamental wave magnetic flux generated by a stator. A rotating electrical machine (10) includes a rotor (18), and two stators (14, 16) opposed with the rotor (18) being interposed therebetween either on both sides of the rotor (18) in the axial direction or on both sides of the rotor (18) in the radial direction. Stator windings (22) provided in a plurality of portions in the circumferential direction of each stator (14, 16) are wound in concentrated winding. The directions of magnetic fluxes generated by stator windings (22) having the same phase in the stators (14, 16) are in mutually opposite directions with respect to either the axial direction or the radial direction. The stator windings (22) having the same phase in the stators (14, 16) are arranged to be shifted from each other by 180 degrees in electrical angle in the circumferential direction.
摘要:
A rotating electric machine includes a rotation shaft arranged rotatably, a rotor having a storing hole capable of storing a permanent magnet, including the permanent magnet stored in the storing hole, and being fixed to the rotation shaft, a stator facing the rotor and including a coil, an end plate provided at an axial end of the rotor, a coolant passage formed in the end plate and running along an axial end of the permanent magnet for allowing a coolant to flow, and a discharge hole located at a radially inner side of the rotor with respect to a cooling target region including the permanent magnet and being located at an outer circumferential side of the rotor from a radially inner end of the permanent magnet, the discharge hole communicating with the coolant passage and being capable of discharging the coolant.
摘要:
A rotating electric motor includes a stator core, a rotational shaft capable of rotation, a field yoke allowing a flow of magnetic flux in an axial direction, first and second rotor cores fixedly installed on the rotational shaft, a first magnet fixedly installed between the first rotor core and the second rotor core, a first rotor teeth formed at the first rotor core, a second magnet provided alongside of the first rotor teeth in the circumferential direction of the first rotor core, a second rotor teeth formed at the outer surface of the second rotor core, protruding outwardly in the radial direction, a third magnet provided alongside of the second rotor core in the axial direction, and windings that can control the density of magnetic flux between at least one of the first rotor core and second rotor core and the stator core.
摘要:
An electric motor has a field pole formed by a field current passing through a field winding. A voltage booting converter converts output voltage of a battery and outputs the voltage between a power source line and a grounding line. Field winding is electrically connected onto an electric current channel between battery and power source line and formed so that voltage switched by a switching element is applied to both ends. A controller controls the field current so as to adjust density of magnetic flux between a rotor and a stator by performing switching control on switching element and a switching element connected in parallel to field winding and converts the output voltage of battery into voltage in accordance with a voltage command value.
摘要:
A battery is arranged outside a compartment. A service plug is arranged in the compartment. The service plug is a shutoff device that can shut off an output path of the battery by a manual operation. When a vehicle is hard hit at the front and a circuit of PCU is damaged, an excessive current may flow to the PCU, possibly generating heat or smoke from the PCU. When the vehicle goes wrong, a person on board the vehicle may pull out the service plug, whereby the power supply path from battery to PCU can be shut off.
摘要:
An electric motor (10) has a field pole formed by a field current passing through a field winding (50). A voltage booting converter (120) converts output voltage of a battery (B) and outputs the voltage between a power source line (107) and a grounding line (105). Field winding (50) is electrically connected onto an electric current channel between battery (B) and power source line (107) and formed so that voltage switched by a switching element (Q1) is applied to both ends. A controller (100) controls the field current so as to adjust density of magnetic flux between a rotor and a stator by performing switching control on switching element (Q1) and a switching element (Q3) connected in parallel to field winding (50) and converts the output voltage of battery (B) into voltage in accordance with a voltage command value.
摘要:
Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends.
摘要:
An electrode stack includes a cathode active material layer and an anode active material layer stacked together, and an electrolyte layer arranged between the cathode active material layer and the anode active material layer. A through hole extending in the stacking direction of the cathode active material layer and anode active material layer is formed in the cathode active material layer, anode active material layer and the electrolyte layer. The electrode stack further includes a bolt inserted to the hole for integrally holding the cathode active material layer, anode active material layer and the electrolyte layer. By such a structure, an electrode stack and a bipolar secondary battery that can effectively prevent displacement of interface between each of the cathode, anode and the electrolyte can be provided.
摘要:
Heat discharging property of the stator coil end is improved effectively in a rotating electric machine. A motor as the rotating electric machine includes a stator and a rotor. The stator includes a stator core and resin mold coil ends provided on both axial ends thereof. Column-shaped projections projecting in the axial direction are provided on axial side surfaces of resin mold coil ends at a plurality of positions. Cooling oil supplied from above the resin mold coil ends effectively cools the resin mold coil ends.