Webasto has been granted a patent for a battery housing designed to accommodate battery modules in motor vehicles. The housing features an integrated exhaust duct that safely discharges harmful media from defective battery modules, incorporating multiple regions to direct and collect these emissions effectively. GlobalData’s report on Webasto 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 Webasto, Hydrogen fuel cells was a key innovation area identified from patents. Webasto's grant share as of July 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.

Battery housing with integrated exhaust duct for defect management

Source: United States Patent and Trademark Office (USPTO). Credit: Webasto SE

The granted patent US12062807B2 presents a novel battery housing designed to safely accommodate one or more battery modules while addressing potential defects. Central to this design is an integrated exhaust duct that facilitates the discharge of harmful media in the event of a battery module failure. The exhaust duct features a complex structure, including an inlet region for media entry, multiple deflection regions to alter the media's transport direction, a parallel region for efficient flow, and an outlet region that forms a T-shape connection. Additionally, a collection device is incorporated within the housing to trap particles from the discharged media, enhancing safety and containment.

Further enhancements to the battery housing include a safety valve that regulates the exhaust duct's operation, ensuring it remains closed during normal conditions and opens only when a defect occurs or when pressure differentials exceed a specified threshold. The design also allows for the housing interior to be sealed during regular operation, preventing gas or liquid exchange with the environment, while a foam material may be used to fill the interior for added protection. The patent outlines various configurations for the exhaust duct, including the option for a rupture disc safety mechanism, reinforcing the housing's structural integrity and operational safety. Overall, this patent represents a significant advancement in battery housing technology, focusing on safety and effective management of potential hazards.

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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.