SAIC Motor has been granted a patent for an innovative electric motor winding structure. This design features a multi-phase winding arrangement using hairpin conductors in a grooved iron core, enhancing efficiency by positioning conductors in non-adjacent layers, with a focus on parallel sub-windings. GlobalData’s report on SAIC Motor gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on SAIC Motor, Battery management systems was a key innovation area identified from patents. SAIC Motor's grant share as of July 2024 was 65%. Grant share is based on the ratio of number of grants to total number of patents.
Winding structure for electric motor with hairpin conductors
The patent US12068651B2 describes a novel winding structure designed for an electric motor's stator, specifically arranged on an iron core featuring multiple slots. This winding structure incorporates a series of hairpin-type conductors of varying shapes, organized into N parallel-wound sub-windings, where N is defined as a positive even number. Each sub-winding consists of conductors positioned in non-adjacent layers within the slots, facilitating a complex arrangement that includes standard hairpin-type conductors and conductors for serial connections. The configuration allows for efficient electrical connections and optimized performance by ensuring that conductors for phase outputs and neutral lines are strategically placed across different layers and slots.
Additionally, the patent outlines specific features of the electric motor that enhance its functionality. The winding structure is integrated into the iron core's slots, with provisions for neutral lines and conductor connections that improve electrical efficiency. The design includes U-shaped conductor connection sections and a busbar for effective electrical interconnections. The arrangement of pin ends for welding connections is also detailed, ensuring that they are aligned for optimal connectivity. Overall, the claims emphasize a sophisticated approach to winding structure design that aims to improve the performance and reliability of electric motors.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
