General Motors. has filed a patent for a damping panel comprising two metal portions with a fixed and non-fixed region. A cavity between the surfaces is filled with a damping material for noise reduction. The innovation aims to improve vehicle acoustics and reduce vibrations. GlobalData’s report on General Motors 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 General Motors, Reformer integrated fuel cells was a key innovation area identified from patents. General Motors's grant share as of January 2024 was 71%. Grant share is based on the ratio of number of grants to total number of patents.

Damping panel with two metals and damping material

Source: United States Patent and Trademark Office (USPTO). Credit: General Motors Co

The patent application (Publication Number: US20240038209A1) describes a damping panel designed to reduce vibrations and noise in electronic devices. The panel consists of two metal portions fixed at one region and separated at another to create a cavity. A damping material is then applied to various surfaces within the cavity to absorb vibrations effectively. The method of manufacturing involves welding the metal portions, injecting gas to create the cavity, and applying the damping material to specific areas to enhance damping properties.

Furthermore, the patent also covers a damping system incorporating the described panel, which can be used in conjunction with an inverter housing to reduce noise and vibrations generated by an electric motor. The method outlined in the patent for manufacturing the damping panel includes specific steps such as using aluminum or magnesium for the metal portions, injecting air as the gas, and applying the damping material concurrently with the gas injection process. By detailing the construction and application of the damping panel, the patent aims to provide a solution for improving the performance and durability of electronic devices by minimizing unwanted vibrations and noise.

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