VEHICLE DOOR HANDLE WITH CAPACITIVE PROXIMITY SENSOR
First Claim
1. A door handle device for motor vehicles with a handle body and a cover for the handle body, wherein the handle body and the cover form a handle for a user, wherein an accommodating space for accommodating electronic components is formed between the handle body and the cover,with a capacitive proximity sensor which is arranged in the accommodating space, wherein the proximity sensor has an active capacitive face directed towards the cover for detecting approaching movements, wherein the approaching movements can be detected through the coverwherein for the detection of approaching movements, the capacitive face is coupled to an evaluation circuit which detects changes in the capacitance of the capacitive face,characterized in that a sealing means composed of a closed-cell foam is arranged in the accommodating space, wherein the sealing means has at least one continuous opening which is spaced apart from the edge of the sealing means,wherein the continuous opening of the sealing means is arranged above the active face of the proximity sensor, so that at least one area above the active face of the proximity sensor is free of foam and wherein the sealing means is compressed in a sealing manner between the cover and the handle body or between the cover and the components accommodated in the handle body.
1 Assignment
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Accused Products
Abstract
A door handle for motor vehicles includes a handle body and a cover which cooperate to form a handle for a user. An accommodating space for electronic components is formed between the handle body and the cover. A capacitive proximity sensor is arranged in the space. The sensor has an active capacitive face directed towards the cover for detecting approaching movements. The capacitive face is coupled to an evaluation circuit which detects changes in the capacitance of the capacitive face. A sealing element composed of a closed-cell foam is located in the space. The sealing element has at least one continuous opening spaced from an edge. The opening is located above the active face of the proximity sensor and is compressed between the cover and the handle body with the result that at least one area above the active face of the sensor is free of foam.
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Citations
11 Claims
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1. A door handle device for motor vehicles with a handle body and a cover for the handle body, wherein the handle body and the cover form a handle for a user, wherein an accommodating space for accommodating electronic components is formed between the handle body and the cover,
with a capacitive proximity sensor which is arranged in the accommodating space, wherein the proximity sensor has an active capacitive face directed towards the cover for detecting approaching movements, wherein the approaching movements can be detected through the cover wherein for the detection of approaching movements, the capacitive face is coupled to an evaluation circuit which detects changes in the capacitance of the capacitive face, characterized in that a sealing means composed of a closed-cell foam is arranged in the accommodating space, wherein the sealing means has at least one continuous opening which is spaced apart from the edge of the sealing means, wherein the continuous opening of the sealing means is arranged above the active face of the proximity sensor, so that at least one area above the active face of the proximity sensor is free of foam and wherein the sealing means is compressed in a sealing manner between the cover and the handle body or between the cover and the components accommodated in the handle body.
Specification