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1.发明公开公开(公告)号：US20240356401A1
公开(公告)日：2024-10-24
申请号：US18682247
申请日：2022-09-06
发明人： Markus LANG , Robert SCHMIDT
CPC分类号： H02K1/32 , H02K1/24 , H02K3/18 , H02K9/19 , H02K15/022 , H02K15/062
摘要： A rotor, a corresponding electric machine, a manufacturing method and a corresponding motor vehicle are disclosed. The rotor has a cavity structure in a first winding head supporting structure and a cut-out in a second winding head supporting structure which are connected by way of feed and return lines for a coolant. Here, the cavity structure has an inflow region, into which a coolant guide of a rotor shaft opens, and a return region which is separate from the inflow region. In this way, the rotor is configured for liquid cooling of the winding head supporting structure.
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公开(公告)号：US20240348109A1
公开(公告)日：2024-10-17
申请号：US18573242
申请日：2022-06-24
申请人： RENAULT S.A.S. , WHYLOT
发明人： Nicolas MARCHAL
CPC分类号： H02K1/148 , H02K15/022 , H02K21/24
摘要： A stator body for an electric machine, including: —at least one fixing support centered on a longitudinal axis, —teeth which are designed to accept coils of electrically conducting wire and which are uniformly distributed about the longitudinal axis, and—fixing means each suitable for fixing one of the teeth to the fixing support. Each fixing means includes: —at least one first key at least partially housed in a first keyway provided in the tooth, —at least one second key at least partially housed in a second keyway provided in the fixing support, and—at least one immobilizing element designed to immobilize the first key with respect to the second key.
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公开(公告)号：US20240339898A1
公开(公告)日：2024-10-10
申请号：US18401282
申请日：2023-12-29
发明人： Chunjiang Li , Bing Xie , Liang Jiang
CPC分类号： H02K15/022 , H02K1/146
摘要： Provided is a stator iron core manufacturing method. The method includes the following steps: manufacturing a strip-shaped iron core; performing winding around each of the yoke portions with a center line parallel to the second direction as an axis to form a stator winding; rolling the strip-shaped iron core, on which winding has been performed, into an integral outer ring structure with the tooth portions as a periphery; and inserting a prefabricated ring-structured intermediate core into the strip-shaped iron core rolled into a ring shape such that to obtain the stator iron core in an integrated structure. The present disclosure further discloses an outer rotor motor using the stator iron core manufacturing method. In the stator iron core, coils can be effectively wound neatly in the wire slot, with a high slot filling rate, a simple process, and easy manufacturing.
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公开(公告)号：US20240266930A1
公开(公告)日：2024-08-08
申请号：US18566683
申请日：2021-11-26
申请人： BMC CO., LTD.
发明人： Seung Soo KIM
CPC分类号： H02K15/022 , B32B37/1207 , H01F41/0233 , B32B2457/00
摘要： The apparatus for manufacturing a laminated core with heating adhesion according to the present invention is characterized by comprising a lower die 10 comprising a plurality of piercing dies 11, an adhesive applying unit 12 installed on one side of the piercing dies 11, and a laminating unit 13 installed on one side of the adhesive applying unit 12; an upper die 20 comprising piercing punches 21 arranged above the piercing dies 11 and a blanking punch 22 arranged above the laminating unit 13; and an SB steel strip 102 continuously fed to an upper part of the lower die 10, for being formed into a laminar member 101 by operation of the piercing punch 21 and the blanking punch 22, wherein the laminating unit 13 comprises a blanking die 131, a squeeze ring 132 installed at a lower part of the blanking die 131, and a first heating unit 135 installed at a lower part of the squeeze ring 132, and laminates the laminar member 101 in the inner diameter surface of the squeeze ring 132 to manufacture a laminated core 100.
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公开(公告)号：US12051954B2
公开(公告)日：2024-07-30
申请号：US17724917
申请日：2022-04-20
申请人： ETEL S.A.
发明人： Daniele Veronesi , Johann Pourchet
CPC分类号： H02K3/522 , H02K1/146 , H02K15/022 , H02K2203/12
摘要： A preformed coil assembly for a stator of an electric motor includes first and second winding carriers located on respective opposite ends of the preformed coil assembly and a winding part wound around the winding carriers to form first and second elongated winding portions with an elongated opening therebetween to be fitted around a tooth of a stator. The preformed coil assembly includes first and second insulation films disposed around the first and second winding portions. Each insulation film includes upper and lower folded portions resting against first and second opposite walls of respective winding carriers to provide first and second distances between respective opposite lateral sides of the tooth and a corresponding non-folded portion of respective first and second insulation films. The first and second distances are equal so that the preformed coil assembly is centered with respect to the tooth when mounted therearound.
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公开(公告)号：US20240235284A9
公开(公告)日：2024-07-11
申请号：US18278909
申请日：2022-02-21
发明人： Marc LESSMANN , Peter GRÖPPEL , Thomas GLEIXNER , Martin THUMMET , Markus WILD , Sunil SREEDHARAN
CPC分类号： H02K1/148 , H02K3/487 , H02K15/022
摘要： The invention relates to a segmented coil carrier (20; 20′) for an electric machine (2), comprising a plurality of separately formed, interconnected segments (1) with in each case one carrier (10) with a shaft (100) and a coil (11) surrounding the shaft (100), a groove (N) being formed between two adjacent carriers (10); and a groove wedge arranged in the groove (N).
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公开(公告)号：US20240235283A1
公开(公告)日：2024-07-11
申请号：US18572208
申请日：2022-04-15
发明人： Tatsuya SAITO , Tomoyuki UENO
CPC分类号： H02K1/146 , H02K1/02 , H02K15/022 , H02K21/24
摘要： A stator core configured to have a plurality of teeth each including a peripheral surface and a first end surface, wherein each of the plurality of teeth is formed of a dust core, the dust core includes a plurality of coated particles, and each of the plurality of coated particles includes a metallic particle and an electrically insulating coating, and wherein each of the first end surfaces has first regions formed of cross sections of the metallic particles and second regions formed of the electrically insulating coatings between the first regions, each of the peripheral surfaces is made of an oxide containing a constituent element of the soft magnetic material, an average thickness of the oxide in each of the peripheral surfaces is 10 μm or less, and a difference between a maximum value and a minimum value of a first heights is 0.02 mm or less.
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公开(公告)号：US12021412B2
公开(公告)日：2024-06-25
申请号：US18088941
申请日：2022-12-27
发明人： Tatsuya Saito , Tomoyuki Ueno
CPC分类号： H02K1/148 , H02K1/02 , H02K15/022 , H02K21/24
摘要： A core piece that is circularly arranged to construct a stator core of an axial gap type rotary electric machine includes: a first member in a column form extending in an axial direction of the stator core; a second member in a plate form disposed on a first end side of the axial direction in the first member; and a third member in a plate form disposed on a second end side of the axial direction in the first member, the first member has a peripheral surface connecting with the second member and the third member, the second member has a protruding portion projecting outwardly from the peripheral surface of the first member, the third member has a protruding portion projecting outwardly from the peripheral surface of the first member, and the first member, the second member, and the third member are configured by an integrally molded green compact.
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公开(公告)号：US20240136867A1
公开(公告)日：2024-04-25
申请号：US18278909
申请日：2022-02-21
发明人： Marc LESSMANN , Peter GRÖPPEL , Thomas GLEIXNER , Martin THUMMET , Markus WILD , Sunil SREEDHARAN
CPC分类号： H02K1/148 , H02K3/487 , H02K15/022
摘要： The invention relates to a segmented coil carrier (20; 20′) for an electric machine (2), comprising a plurality of separately formed, interconnected segments (1) with in each case one carrier (10) with a shaft (100) and a coil (11) surrounding the shaft (100), a groove (N) being formed between two adjacent carriers (10); and a groove wedge arranged in the groove (N).
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公开(公告)号：US11962209B2
公开(公告)日：2024-04-16
申请号：US17333800
申请日：2021-05-28
IPC分类号： H02K16/00 , H02K1/14 , H02K3/18 , H02K7/00 , H02K7/08 , H02K15/02 , H02K15/06 , H02K17/12 , H02K17/42
CPC分类号： H02K3/18 , H02K1/14 , H02K7/003 , H02K7/086 , H02K15/022 , H02K15/062 , H02K17/12 , H02K17/42
摘要： An axial flux induction machine including at least two stator and one rotor where the stators include an inner and outer ring of coils. The stator includes at least two mirrored structure constructed such as to secure wire coils, amplify magnetic characteristics, and provide a structure upon which to secure a rotary shaft or through which a rotary shaft may be run. The structures supporting either the outer or inner ring of coils can be in contact between the two stators and the outer ring can be spaced further from the rotary shaft than the inner ring of coils and also further from the rotary shaft than an outer edge of the rotor.
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