Invention Grant
- Patent Title: Fractional slot electric motors with coil elements having rectangular cross-sections
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Application No.: US17334355Application Date: 2021-05-28
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Publication No.: US11646623B2Publication Date: 2023-05-09
- Inventor: James Dameron , Evan Filter , Phillip Weicker , Charles Garmel
- Applicant: Canoo Technologies Inc.
- Applicant Address: US CA Torrance
- Assignee: Canoo Technologies Inc.
- Current Assignee: Canoo Technologies Inc.
- Current Assignee Address: US CA Torrance
- Main IPC: H02K3/50
- IPC: H02K3/50 ; H02K3/52 ; H02K1/16 ; H02K3/28 ; H02K3/46 ; H02K1/14 ; H02K3/34

Abstract:
Described herein are fractional slot electric motors with compact crowns. A motor comprises multiple coil elements protruding through a stator core and forming electrical connections with each other and/or with a lead assembly. The lead assembly comprises phase busbars connected to selected coil elements and comprising terminals for connecting to an external power supply. The lead assembly also comprises neutral busbars, with no external connections and internally connected to other coil elements. Each coil element has a rectangular cross-sectional profile to maximize the slot-fill-ratio of the motor. Each coil element is electrically coupled to two other components. For example, each looped coil element is coupled to two other coil elements at a stator side, opposite the lead assembly. Each extended coil element is coupled to another coil element at that same side and coupled to another coil element or a busbar at the lead assembly side.
Public/Granted literature
- US20210288545A1 FRACTIONAL SLOT ELECTRIC MOTORS WITH COIL ELEMENTS HAVING RECTANGULAR CROSS-SECTIONS Public/Granted day:2021-09-16
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