Suction cup and system for leak testing of an underride guard as well as procedures

The suction cup system securely locks onto the underride guard's pressure equalization element, simplifying leak testing by eliminating the need to drain the high-voltage battery, thus reducing costs and time, and ensuring a stable seal during the test.

DE102025113590B3Active Publication Date: 2026-05-28DR ING H C F PORSCHE AG
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Patent Information

Application Number
DE102025113590
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2025-04-07
Publication Date
2026-05-28
Estimated Expiration
2045-04-07

AI Technical Summary

Technical Problem

Existing leak tests for underride guards in battery-electric vehicles require extensive preparatory work, often involving draining the high-voltage battery, due to the location of the pressure equalization element on the upper side, complicating and increasing the cost of the test.

Method used

A suction cup designed to securely lock onto the pressure equalization element of the underride guard, allowing for leak testing without direct line of sight and without draining the high-voltage battery, featuring locking lugs and a sealing lip for secure sealing, and a release mechanism using a gripper or mounting rope for easy removal.

Benefits of technology

Simplifies leak testing by eliminating the need to drain the high-voltage battery, reducing costs and time, while ensuring a secure and stable seal during the test.

✦ Generated by Eureka AI based on patent content.

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Abstract

To simplify leak testing, the invention provides a suction cup (10) for a leak testing system for an underride guard (12) of a battery-electric vehicle with a pressure equalization element (14), wherein the suction cup (10) is designed to lock onto the pressure equalization element (14) of the underride guard (12). Furthermore, the invention provides a leak testing system and a leak testing method (1000).
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Citation Information

Patent Citations

  • Leakage testing device for high-voltage storage systems

    DE102013211400B4

  • Battery terminal leak detector

    US3793876A

  • Pressure equalization element for leak testing of a housing

    DE102019215433A1

  • Underride protection arrangement, battery arrangement, motor vehicle and method for detecting an impact of an object on an underride protection element

    DE102021106166A1

  • Method for dismantling an energy storage device enclosed by a motor vehicle

    DE102022126740A1