American Axle & Manufacturing. has been granted a patent for an electric motor design featuring a stator body with fluid channels and conductive windings. The motor includes end caps with walls and pins that separate the winding loops from the fluid channels, enhancing its structural and functional design. GlobalData’s report on American Axle & Manufacturing 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 American Axle & Manufacturing, was a key innovation area identified from patents. American Axle & Manufacturing's grant share as of July 2024 was 63%. Grant share is based on the ratio of number of grants to total number of patents.
Electric motor with fluid channels and conductive windings
The patent US12057738B2 describes an innovative electric motor design that incorporates a stator body with a rotor bore and multiple fluid channels. The motor features a series of electrically conductive windings that create first winding loops extending axially from one end of the stator body. A first end cap is attached to this end, which includes a wall and several pins. The wall is strategically positioned between the winding loops and the fluid channels, while the pins extend radially outward from the wall, ensuring they are located outside the innermost part of the fluid channels. This configuration is designed to enhance the motor's efficiency and thermal management.
Additionally, the patent outlines the possibility of a second end cap at the opposite end of the stator body, which also contains a wall and pins similar to the first end cap. The second end cap supports second winding loops that extend axially outward and are similarly separated from the fluid channels by the wall. The design allows for the winding loops to be encased in a thermally conductive but electrically insulating resin, further improving thermal performance. The arrangement of the pins and walls in both end caps is intended to optimize the flow of fluids through the channels while maintaining effective electrical insulation and thermal conductivity, contributing to the overall functionality and reliability of the electric motor.
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