Liebherr-International has been granted a patent for an actuating apparatus designed to trigger pyrofuses. The device features a supply voltage connection, triggering outputs, a signal input for triggering signals, and an actuating circuit with a field-effect transistor stage, enhancing the reliability of pyrofuse activation. GlobalData’s report on Liebherr-International 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 Liebherr-International, was a key innovation area identified from patents. Liebherr-International's grant share as of June 2024 was 47%. Grant share is based on the ratio of number of grants to total number of patents.
Actuating apparatus for triggering pyrofuses using a signal input
The patent US12034291B2 describes an innovative actuating device designed for triggering pyrofuses, which are safety components used to disconnect power in energy storage systems. The device features a supply voltage connection, multiple triggering outputs for connecting to pyrofuses, and a signal input for receiving a triggering signal that indicates when activation is necessary. Central to its operation is an actuating circuit that includes a field effect transistor stage, which switches the supply voltage to the triggering outputs based on the received signal. Additionally, the device incorporates an evaluation circuit with a flip-flop stage that converts brief triggering pulses into sustained signals, enhancing reliability in activation.
Further enhancements to the actuating device include the option for multiple actuating circuits or channels, allowing for the simultaneous triggering of several pyrofuses. The design also accommodates voltage stabilizing capacitors to ensure consistent supply voltage and may include current and voltage sensors for monitoring system performance. The device can be integrated into energy storage systems, where it plays a critical role in managing the connection between power controllers and storage blocks, ensuring safe operation by disconnecting power when necessary. The patent outlines various configurations and components, such as MOSFET elements and feedback mechanisms, to optimize the functionality and reliability of the pyrofuse triggering process.
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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.
