PERMANENT MAGNET ELECTRIC MACHINE WITH TWO PART OR MULTI PART PERMANENT MAGNETS
    1.
    发明申请
    PERMANENT MAGNET ELECTRIC MACHINE WITH TWO PART OR MULTI PART PERMANENT MAGNETS 审中-公开
    永磁电机具有两部分或多部分永久磁铁

    公开(公告)号:US20130270949A1

    公开(公告)日:2013-10-17

    申请号:US13864150

    申请日:2013-04-16

    申请人: ROBERT BOSCH GMBH

    IPC分类号: H02K1/02

    CPC分类号: H02K1/02 H02K1/276 H02K1/2766

    摘要: A permanent magnet electric machine (2), in which permanent magnets (7) are arranged on a stator (13) and/or a rotor (15). In this case, a permanent magnet (7) has at least one first macroscopic permanent magnet element and one second macroscopic permanent magnet element (21, 23), wherein the permanent magnet elements (21, 23) are formed from different materials, which have different magnetic coercitivities.

    摘要翻译: 一种永磁电机(2),其中永磁体(7)布置在定子(13)和/或转子(15)上。 在这种情况下,永磁体(7)具有至少一个第一宏观永磁体元件和一个第二宏观永磁体元件(21,23),其中永磁体元件(21,23)由不同的材料形成, 不同的磁性强度。

    Heat sink for an electric machine and method for producing said heat sink

    公开(公告)号:US10476343B2

    公开(公告)日:2019-11-12

    申请号:US15568583

    申请日:2016-03-09

    申请人: Robert Bosch GmbH

    IPC分类号: H02K5/20 H02K9/19

    摘要: The invention relates to a heat sink (1) for an electric machine, which heat sink has at least one cooling channel (7), which adjoins an interior (3) surrounded by the heat sink (1). The heat sink (1) is characterized in that the heat sink (1) is designed as a single-piece plate (5) bent into a closed ring, in the case of which plate two opposite abutting surfaces (19, 21) are connected to each other in a fluid-tight manner in the region of a joint (17), wherein a plurality of closed channels (7) extend in the plate (5), which channels extend at an angle to the circumferential direction of the ring in such a way that adjacent channels (7) lead into each other in the region of the joint (17) and thus form a continuous, spiral channel, which extends in a plurality of spiral turns from an axially front end (22) to an axially rear end (24) of the annular heat sink (1). In particular, the plate (5) of the heat sink (1) can be economically extruded and then brought into a shape suitable for the heat sink (1) by means of bending and axial offsetting. The heat sink (1) can be produced in a simple and economical manner and enables efficient cooling of an electric machine while requiring a minimal installation space.

    HEAT SINK FOR AN ELECTRIC MACHINE AND METHOD FOR PRODUCING SAID HEAT SINK

    公开(公告)号:US20180123419A1

    公开(公告)日:2018-05-03

    申请号:US15568583

    申请日:2016-03-09

    申请人: Robert Bosch GmbH

    IPC分类号: H02K5/20

    CPC分类号: H02K5/20 H02K9/19

    摘要: The invention relates to a heat sink (1) for an electric machine, which heat sink has at least one cooling channel (7), which adjoins an interior (3) surrounded by the heat sink (1). The heat sink (1) is characterized in that the heat sink (1) is designed as a single-piece plate (5) bent into a closed ring, in the case of which plate two opposite abutting surfaces (19, 21) are connected to each other in a fluid-tight manner in the region of a joint (17), wherein a plurality of closed channels (7) extend in the plate (5), which channels extend at an angle to the circumferential direction of the ring in such a way that adjacent channels (7) lead into each other in the region of the joint (17) and thus form a continuous, spiral channel, which extends in a plurality of spiral turns from an axially front end (22) to an axially rear end (24) of the annular heat sink (1). In particular, the plate (5) of the heat sink (1) can be economically extruded and then brought into a shape suitable for the heat sink (1) by means of bending and axial offsetting. The heat sink (1) can be produced in a simple and economical manner and enables efficient cooling of an electric machine while requiring a minimal installation space.

    Fluid-cooled housing for an electrical machine

    公开(公告)号:US10680497B2

    公开(公告)日:2020-06-09

    申请号:US15519871

    申请日:2015-09-01

    申请人: Robert Bosch GmbH

    摘要: The invention relates to a housing (10) for an electrical machine (50) and to an electrical machine (50) having such a housing (10). The housing (10) comprises an inner wall (12) and an outer wall (14), with a hollow space (16) therebetween for cooling the electrical machine (50) with a fluid. The housing (10) further has a sealing device (24, 26) on a front face (22, 23) of the housing (10). The housing is particularly characterised in that the sealing device (24, 26) comprises an annular sealing element (28) mounted between the inner wall (12) and the outer wall (14) so as to seal the front face, and in that the sealing device (24, 26) comprises a deflection ridge (30) which projects from the sealing element (28) in the axial direction of the housing (10) and is at least partially arranged between the walls (12, 14), the deflection ridge (30) being designed to lead a cooling fluid in the hollow space (16). A compact, economical and fluid-tight housing (10) can thus be advantageously provided.

    FLUID-COOLED HOUSING FOR AN ELECTRICAL MACHINE

    公开(公告)号:US20170244305A1

    公开(公告)日:2017-08-24

    申请号:US15519871

    申请日:2015-09-01

    申请人: Robert Bosch GmbH

    IPC分类号: H02K9/197 H02K5/06 H02K5/18

    摘要: The invention relates to a housing (10) for an electrical machine (50) and to an electrical machine (50) having such a housing (10). The housing (10) comprises an inner wall (12) and an outer wall (14), with a hollow space (16) therebetween for cooling the electrical machine (50) with a fluid. The housing (10) further has a sealing device (24, 26) on a front face (22, 23) of the housing (10). The housing is particularly characterised in that the sealing device (24, 26) comprises an annular sealing element (28) mounted between the inner wall (12) and the outer wall (14) so as to seal the front face, and in that the sealing device (24, 26) comprises a deflection ridge (30) which projects from the sealing element (28) in the axial direction of the housing (10) and is at least partially arranged between the walls (12, 14), the deflection ridge (30) being designed to lead a cooling fluid in the hollow space (16). A compact, economical and fluid-tight housing (10) can thus be advantageously provided.