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公开(公告)号：US20220416599A1
公开(公告)日：2022-12-29
申请号：US17779912
申请日：2020-10-22
Applicant: Robert Bosch GmbH
Inventor： Thomas Pagoni , Robert Bonasewicz , Simon Mensak , Marco Eitzert
IPC: H02K1/2733 , H02K15/03
Abstract: A rotor for an electric machine, in particular for a brushless DC motor, includes a hollow cylindrical main body that is rotationally fixed to a machine shaft. The main body includes a plurality of radial protrusions arranged over its casing surface in the circumferential direction and in the axial direction and offset relative to one another by a defined offset angle. Each radial protrusion is limited over an angular range, which is smaller than the offset angle. The hollow cylindrical main body is permanently connected, in particular adhered, to a hollow cylindrical body surrounding same in the circumferential direction by way of a joining process. A method for producing a rotor for an electric machine is also disclosed. The method includes (i) using rotor laminations for a rotor lamination stack of the rotor, wherein a plurality of rotor laminations have a respective at least one radial protrusion that is limited over an angular range, (ii) stacking the rotor laminations to form the rotor lamination stack in such a way that, of the plurality of rotor laminations having at least one radial protrusion, neighboring rotor laminations are rotated relative to one another about a defined offset angle that is greater than the angular range of the at least one radial protrusion, (iii) applying a joining agent, in particular an adhesive, to an outer casing of the rotor lamination stack, preferably between the radial protrusions, and/or to an inner surface of a hollow cylindrical body, and (iv) sliding the hollow cylindrical body onto the rotor lamination stack. An electric machine is also disclosed that includes a corresponding rotor, as well as an electrical processing device having a corresponding electric machine.
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Patent Agency Ranking
公开(公告)号：US20220368190A1
公开(公告)日：2022-11-17
申请号：US17771769
申请日：2020-10-21
Applicant: Robert Bosch GmbH
Inventor： Sebastian Laber , Robert Bonasewicz , Andreas Voelkle
IPC: H02K5/173 , H02K21/24 , H02K1/2793 , H02K1/14
Abstract: An axial flux machine, in particular a single-sided axial flux motor, for an electrical machining device, has a machine shaft, in particular a motor shaft, a disc-shaped stator, a disc-shaped rotor which is arranged adjacent to the stator in the axial direction of the machine shaft. The stator is formed as a winding carrier for at least one stator winding and the rotor, which is connected to the machine shaft in a rotationally fixed manner, can be set in a rotational movement relative to the stator, and with a housing for receiving the stator and the rotor. A first bearing, in particular a fixed bearing, is integrated directly into the winding support and/or into a first stator yoke for mounting the machine shaft. An electrical processing device with an axial flux machine is also disclosed.
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公开(公告)号：US12119711B2
公开(公告)日：2024-10-15
申请号：US17779912
申请日：2020-10-22
Applicant: Robert Bosch GmbH
Inventor： Thomas Pagoni , Robert Bonasewicz , Simon Mensak , Marco Eitzert
IPC: H02K1/27 , H02K1/2733 , H02K15/03
CPC classification number: H02K1/2733 , H02K15/03 , H02K2213/03
Abstract: A rotor for an electric machine, in particular for a brushless DC motor, includes a hollow cylindrical main body that is rotationally fixed to a machine shaft. The main body includes a plurality of radial protrusions arranged over its casing surface in the circumferential direction and in the axial direction and offset relative to one another by a defined offset angle. Each radial protrusion is limited over an angular range, which is smaller than the offset angle. The hollow cylindrical main body is permanently connected, in particular adhered, to a hollow cylindrical body surrounding same in the circumferential direction by way of a joining process. A method for producing a rotor for an electric machine is also disclosed. The method includes (i) using rotor laminations for a rotor lamination stack of the rotor, wherein a plurality of rotor laminations have a respective at least one radial protrusion that is limited over an angular range, (ii) stacking the rotor laminations to form the rotor lamination stack in such a way that, of the plurality of rotor laminations having at least one radial protrusion, neighboring rotor laminations are rotated relative to one another about a defined offset angle that is greater than the angular range of the at least one radial protrusion, (iii) applying a joining agent, in particular an adhesive, to an outer casing of the rotor lamination stack, preferably between the radial protrusions, and/or to an inner surface of a hollow cylindrical body, and (iv) sliding the hollow cylindrical body onto the rotor lamination stack. An electric machine is also disclosed that includes a corresponding rotor, as well as an electrical processing device having a corresponding electric machine.
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公开(公告)号：US20180346327A1
公开(公告)日：2018-12-06
申请号：US15778956
申请日：2016-11-22
Applicant: Robert Bosch GmbH
Inventor： Andreas Krauss , Nicola Mingirulli , Robert Bonasewicz
CPC classification number: B81C1/00825 , H01L2224/48465
Abstract: At least one semiconductor component is packaged by covering at least one partial surface of the at least one semiconductor component with at least one chemically or physically dissoluble sacrificial material; surrounding the at least one semiconductor component at least partially with a photoablatable packaging material; exposing the sacrificial material on the at least one partial surface of the at least one semiconductor component at least partially by forming at least one trench through at least the packaging material using a light beam; and exposing the at least one partial surface of the at least one semiconductor component at least partially by at least partially removing the previously exposed sacrificial material using a chemical or physical removal method to which the packaging material has a higher resistance than the sacrificial material.
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公开(公告)号：US20240413686A1
公开(公告)日：2024-12-12
申请号：US18733549
申请日：2024-06-04
Applicant: Robert Bosch GmbH
Inventor： Simon Mensak , Robert Bonasewicz
Abstract: A brushless electric machine, in particular a brushless DC motor, has a stator and a rotor arranged within the stator so as to be rotatable relative thereto. The rotor has a cylindrical base body which is non-rotatably connected to a machine shaft and carries a plurality of permanent magnets on its outer circumference, and the stator has a stator winding with a plurality of single-tooth windings for driving the rotor via an electrically generated magnetic field. The permanent magnets of the rotor are fixed by a thin-walled reinforcement radially surrounding them, wherein the reinforcement is connected to the permanent magnets by a plurality of welding points in a materially and/or positively locking manner.
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公开(公告)号：US10654716B2
公开(公告)日：2020-05-19
申请号：US15778956
申请日：2016-11-22
Applicant: Robert Bosch GmbH
Inventor： Andreas Krauss , Nicola Mingirulli , Robert Bonasewicz
Abstract: At least one semiconductor component is packaged by covering at least one partial surface of the at least one semiconductor component with at least one chemically or physically dissoluble sacrificial material; surrounding the at least one semiconductor component at least partially with a photoablatable packaging material; exposing the sacrificial material on the at least one partial surface of the at least one semiconductor component at least partially by forming at least one trench through at least the packaging material using a light beam; and exposing the at least one partial surface of the at least one semiconductor component at least partially by at least partially removing the previously exposed sacrificial material using a chemical or physical removal method to which the packaging material has a higher resistance than the sacrificial material.
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