Lucid Group has been granted a patent for a hybrid rotor assembly for electric motors. The assembly incorporates both sintered permanent magnets and bonded magnets in the lamination cavities of the rotor stack. This innovative design aims to improve motor efficiency and performance. GlobalData’s report on Lucid Group 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 Lucid Group, was a key innovation area identified from patents. Lucid Group's grant share as of February 2024 was 51%. Grant share is based on the ratio of number of grants to total number of patents.
Hybrid rotor assembly for electric motor
A recently granted patent (Publication Number: US11909270B2) discloses an innovative electric motor design featuring a stator and a rotor assembly with a hollow rotor shaft containing a differential gear assembly. The rotor assembly includes a lamination stack with tabs extending into lamination cavities, housing permanent magnets. The motor also incorporates first and second planetary assemblies aligned with the differential gear assembly, enhancing its efficiency and performance.
Furthermore, the patent details the lamination stack's structure, comprising skewed lamination sections with multiple lamination discs, and four lamination sections in total. The arrangement of the lamination cavities in pairs, corresponding to the motor's poles in a V-shaped configuration, highlights the precision and optimization of the design. Additionally, the permanent magnets utilized in the motor are cuboid-shaped and made from various materials like ferrite, ceramic, and neodymium, ensuring robust performance across different types of electric motors, including permanent magnet synchronous and brushless DC motors. The inclusion of voids in some lamination cavities filled with resin further showcases the attention to detail and customization in this electric motor design.
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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.
