Sensor module

a technology of sensor arrays and modules, applied in the field of sensors, can solve the problems of difficult production and maintenance of such sensor arrays, and achieve the effects of convenient separation, easy combination with each other, and effective production

Inactive Publication Date: 2011-01-20
HUF HULSBECK & FURST GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]The invention therefore provides a sensor module which allows the formation of a sensitive capacitive proximity sensor in a simple manner and from separate components. The sensor electrodes are pressed into the carrier material as cables or wires and kept at a defined distance from each other within it. Stable intervening spaces and orientation are ensured throughout the entire mounting distance with the carrier material in accordance with the invention. Due to the carrier forming process, it is possible to guide the sensor electrodes

Problems solved by technology

The production and maintenance of such

Method used

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Embodiment Construction

[0029]FIG. 1 shows a carrier 1 which possesses a fastening segment 2 and a mount segment 3. The mount segment 3 contains recesses 4A, 4B, 4C which serve to receive the electrodes. The carrier 1 is formed as an extrusion body out of plastic. The recesses 4A, 4B, 4C each possess circular empty spaces within their cross-sections, which are opened along a circular segment. Cables or wires can be pressed in through these openings to be held within the recesses.

[0030]FIG. 2 shows the carrier with inserted electrodes 5A, 5B and 5C as well as a fastening clip 6.

[0031]The electrode 5A is placed in the recess 4A, the electrode 5B in the recess 4B, and the electrode 5C in the recess 4C.

[0032]The clip grasps around the fastening segment 2, fixing it firmly in place. The clip 6 has suitable elasticity and angled receiving edges in order to allow easy insertion of the fastening segment 2 into the clip 6.

[0033]This view shows that the wires or cables 5A, 5B, 5C are held in their respective inserte...

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Abstract

A capacitive sensor module with a sensor electrode which is used to detect the entry of an object into a space ahead of the sensor electrode, wherein the sensor electrode is formed from a wire. Parallel to the sensor electrode, auxiliary electrodes extend within a plastic carrier that possesses recesses to receive the sensor electrode and the auxiliary electrodes and partially surrounds them along their circumference. The sensor electrodes can be pressed into the plastic carrier by overcoming an elastic forming force and are held within their recesses by the elastic reshaping process.

Description

BACKGROUND OF THE INVENTION[0001]The invention involves a sensor module for use in or on motor vehicles.[0002]The invention particularly involves a sensor module with a sensor electrode which will be used in order to prevent the entry of an object into a space ahead of the sensor electrode. At least one auxiliary electrode extends parallel to the sensor electrode.[0003]Such sensor arrays are used in vehicles within various fields.[0004]A capacitive sensor array with a sensor electrode with whose aid the approach of an object is to be detected, and with a control and evaluation circuit that is linked to the sensor electrode and detects a capacity change of the sensor electrode as compared to mass by periodically linking the sensor electrode with an operating voltage at a predetermined frequency and evaluating at least one parameter of a current or voltage progression that is dependent on the periodic charging and discharging of the sensor electrode in order to detect the capacity cha...

Claims

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Application Information

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IPC IPC(8): G01R27/26
CPCH03K17/955B60R19/48
Inventor GASTEL, PETER VANLINDIC, IKO
Owner HUF HULSBECK & FURST GMBH & CO KG
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