WO2025059132 - INTEGRATED COOLING CHANNELS FOR STATORS
National phase entry is expected:
Publication Number
WO/2025/059132
Publication Date
20.03.2025
International Application No.
PCT/US2024/046128
International Filing Date
11.09.2024
Title **
[English]
INTEGRATED COOLING CHANNELS FOR STATORS
[French]
CANAUX DE REFROIDISSEMENT INTÉGRÉS POUR STATORS
Applicants **
SCHAEFFLER TECHNOLOGIES AG & CO. KG
Inventors
MISTRY, Jigar
MOHAMMADI, Mohammad Hossain
Priority Data
63/582,023
12.09.2023
US
18/829,939
10.09.2024
US
Application details
| Total Number of Claims/PCT | * |
| Number of Independent Claims | * |
| Number of Priorities | * |
| Number of Multi-Dependent Claims | * |
| Number of Drawings | * |
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| Number of Pages with Drawings | * |
| Pages of Specification | * |
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| Number of Office Actions | * |
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International Searching Authority |
EPO
* |
| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
* |
| Type of Assignment |
The Standard Agent's Assignment
* |
| Applicant's Legal Status |
Legal Entity
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| * | |
| * | |
| * | |
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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* The data is based on automatic recognition. Please verify and amend if necessary.
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2392 | |
| EPO | Filing, Examination, Granting | 13329 | |
| Japan | Filing, Examination, Granting | 2485 | |
| South Korea | Filing, Examination, Granting | 2701 | |
| USA | Filing, Examination, Granting | 5740 |
Total:
26,647
The term for entry into the National Phase has expired. This quotation is for informational purposes only
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Abstract[English]
A cooling system includes cooling channels (30, 34a, 34b) integrated into the laminations (14) of a stator (10), where the laminations (14) are stacked together to form the stator core. The stator (10) has multiple stator slots (16), and multiple windings (18) extending through the stator slots (16). The geometry of the cooling channels (30, 34a, 34b) varies through different groups of the stator laminations (14). This facilitates the cooling channels (30, 34a, 34b) being closer to the primary heat source, which are the stator windings (18), located in the stator slots (16). The coolant enters the stator (10) geometry via one or multiple inlets on the outer surface of the electric motor, and the cooling channels (30, 34a, 34b) are shaped such that the coolant is simultaneously distributed radially and axially. The coolant exits the cooling channels (30, 34a, 34b) from both axial faces through one or multiple outlets (38a, 38b), and makes contact with the end windings (18).[French]
La présente invention porte sur un système de refroidissement qui comprend des canaux de refroidissement (30, 34a, 34b) intégrés dans les stratifications (14) d'un stator (10), les stratifications (14) étant empilées ensemble pour former le noyau de stator. Le stator (10) comporte de multiples fentes de stator (16), et de multiples enroulements (18) s'étendant à travers les fentes de stator (16). La géométrie des canaux de refroidissement (30, 34a, 34b) varie à travers différents groupes des stratifications de stator (14). Cela facilite une proximité des canaux de refroidissement (30, 34a, 34b) avec la source de chaleur primaire, qui sont les enroulements de stator (18), situés dans les fentes de stator (16). Le fluide de refroidissement entre dans la géométrie du stator (10) par l'intermédiaire d'une ou de multiples entrées sur la surface externe du moteur électrique, et les canaux de refroidissement (30, 34a, 34b) sont formés de telle sorte que le fluide de refroidissement est simultanément distribué radialement et axialement. Le fluide de refroidissement sort des canaux de refroidissement (30, 34a, 34b) à partir des deux faces axiales à travers une ou plusieurs sorties (38a, 38b), et entre en contact avec les enroulements d'extrémité (18).