Approach detection device

US9953525B2 · kind B2 · utility

Assignee

• Huf Hülsbeck & Fürst GmbH & Co. KG · DE

Inventors

• Gerd Buschmann · Velbert, DE
• Sebastian Raulin · Essen, DE

Key dates

• Filing date: Jun 4, 2013
• Grant date: Apr 24, 2018
• Expiry date: Oct 25, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H03K2217/960755
• WIPO field: Control
• WIPO sector: Instruments

Abstract

An approach detection device for motor vehicles includes a sensor carrier and a sensor electronic system disposed in a receiving space therein. The device includes a capacitive approach sensor coupled to an evaluation circuit which has a capacitive surface for detecting approaches. The device is mounted via a carrier frame, including a fastening section, to a vehicle body part and includes a detection opening. The sensor carrier is fastened to the carrier frame such that the active capacitive surface of the sensor is oriented toward the detection opening. A receiving space is defined by the detection opening and the sensor carrier and is formed in the region of the detection opening. A sealing element is disposed in the receiving space on the sensor carrier.