Device for electrical current transmission to a rotor of an electric machine
The device addresses electrical flashovers and leakage currents by using a coolant system with a separator to remove conductive particles, ensuring safe and efficient electrical current transmission to the rotor.
DE102024121809B4Active Publication Date: 2026-06-11SCHAEFFLER TECHNOLOGIES AG & CO KG
Patent Information
- Application Number
- DE102024121809
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2026-06-11
- Estimated Expiration
- 2044-07-31
Smart Images
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Abstract
Device for electrical current transmission to a rotor of an electric machine, comprising a group of sliding contacts (1, 2) assigned to each electrical pole for current transmission to a slip ring of the electric machine assigned to each such group, characterized in that at least one separator (16, 27 to 31, 46) is provided for separating electrically conductive particles from the coolant of a coolant system (9) for cooling the sliding contacts (1, 2), and the separator (16, 27 to 31) is arranged in the area of the coolant inlet (17) of the coolant system (9), and a filter is provided as the separator (16, 27 to 31), wherein the sliding contacts (1, 2) and the coolant system (9) are arranged with liquid cooling and with the coolant inlet (17) on a base support (5).
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Citation Information
Patent Citations
Brush holder for holding at least two brushes for a sliding contact arrangement, electric machine and motor vehicle
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US20190140521A1
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JP0000S5627882U