ELECTRIC MOTOR AND ELECTRICAL APPARATUS
    94.
    发明公开

    公开(公告)号:EP4030597A1

    公开(公告)日:2022-07-20

    申请号:EP20863818.9

    申请日:2020-09-07

    IPC分类号: H02K13/00 H01R39/00 H01R39/18

    摘要: An electric motor (1) includes a commutator (30) including commutator segments (31), a first conducting brush (41) and a second conducting brush (42) in contact with the commutator (30), and a first auxiliary brush (51) and a second auxiliary brush (52) in contact with the commutator (30). The first auxiliary brush (51) and the second auxiliary brush (52) are connected to each other via a diode (80). When the first conducting brush (41) separates from one of the commutator segments (31), the first auxiliary brush (51) comes into contact with two commutator segments (31) including the one of the commutator segments (31) and a commutator segment (31) behind the one of the commutator segments (31) in a direction of rotation. When the second conducting brush (42) separates from another commutator segment (31) (commutator segment (31) different from the one of commutator segments (31)), the second auxiliary brush (52) comes into contact with two commutator segments (31) including another commutator segment (31) and a commutator segment (31) behind another commutator segment (31) in the direction of rotation.

    BUSBAR, BUSBAR MAIN BODY, MOTOR, ELECTRIC POWER STEERING SYSTEM, AND VEHICLE

    公开(公告)号:EP3985845A1

    公开(公告)日:2022-04-20

    申请号:EP20855059.0

    申请日:2020-07-23

    IPC分类号: H02K13/00 H02K3/50

    摘要: The present invention provide a bus-barwire, comprising: a frame, being an insulator; a plurality of busbars, each of the busbars comprises a main body embedded in the frame and extending along a circumferential direction of the frame, and a plurality of connecting parts connected to the main body and protruding outside the frame, the plurality of connecting parts being used to connect wiring ends of motor stator windings; and a plurality of terminals, being connected to the plurality of busbars, for connecting to a power source, wherein, all the main bodies of the busbars are arranged in a stack along an axial direction of the frame and are spaced apart from each other, all the connecting parts of the busbars are spaced apart along the circumferential direction of the frame, and all the connecting parts of the busbars are far from end surfaces of the stator windings and remain flush in the axial direction of the frame. The above-mentioned scheme not only facilitates the control of the peeling position of each of the wiring ends, but also facilitates the welding of the wiring end and the connecting part on the production line, and also facilitates cutting off the excess thread end, thereby improving production efficiency and improving product consistency.

    CONDUCTIVE MATERIAL HAVING EXCELLENT ABRASION RESISTANCE AND HEAT RESISTANCE

    公开(公告)号:EP3889280A1

    公开(公告)日:2021-10-06

    申请号:EP19889277.0

    申请日:2019-11-25

    发明人: TSURUTA Terumasa

    摘要: The present invention provides an electrically-conductive material containing Ag in an amount of 10 mass% or more and 70 mass% or less, Pd in an amount of 30 mass% or more and 90 mass% or less, Ni in an amount of more than 5 mass% and 45 mass% or less, and inevitable impurities. A ratio of a Ni content (mass%) to a Ag content (mass%) (Ni (mass%)/Ag (mass%)) is 0.1 or more and 5.0 or less, metal structures include a AgPd alloy phase and a PdNi alloy phase, and a volume ratio of the PdNi alloy phase is 18 vol% or more and 80 vol% or less. In the present invention, Ni is added in a high concentration to a AgPd alloy, and the amount of PdNi alloy phases generated as separate phases is controlled to strengthen the entire alloy. The alloy has good processability, and an improved rigidity modulus and recrystallization property as compared to conventional alloys.