Aisin. has filed a patent for a vehicle drive device with a rotary electric machine and inverter device housed in a case. The case includes a cover member with a damping member to convert vibration into heat. This innovation aims to improve the efficiency and durability of electric vehicle components. GlobalData’s report on Aisin 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 Aisin, Hybrid powertrains was a key innovation area identified from patents. Aisin's grant share as of January 2024 was 31%. Grant share is based on the ratio of number of grants to total number of patents.
Vehicle drive device with vibration-damping cover for electric machine
The patent application (Publication Number: US20240039362A1) describes a vehicle drive device comprising a rotary electric machine, an inverter device for controlling the drive of the machine, and a case with a case body and cover member. The case body forms separate housing chambers for the electric machine and inverter, with the cover member having a flat plate portion attached with a damping member to convert vibration into heat.
In addition to the basic configuration, the patent application details specific features such as the design of the cover member with different portions for attachment of the damping member, the positioning of the cover member between the inverter device and the vehicle cabin side, and the arrangement of components within the inverter device. The damping member itself is described as having a vibration transmission layer and a hard layer, with the former closer to the cover member. The case body also includes a partition wall to separate the housing chambers. These unique features aim to enhance the performance and durability of the vehicle drive device, ensuring efficient operation and reduced vibration transmission to the vehicle cabin.
To know more about GlobalData’s detailed insights on Aisin, buy the report here.
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