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Actuation plate with symbol illumination for a sensor switch button

A launch pad and sensor technology, applied in the field of launch pads, can solve the problems of limited vehicle design options, poor detection accuracy, etc.

Active Publication Date: 2017-09-08
DELPHI TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The resulting large distance between the sensor surface and the user's finger results in poor detection accuracy
In addition, the acrylic glass pane and the light sources, which are usually arranged on the side of the acrylic glass pane, require space, so that the corresponding switch head may need to have a minimum size
This situation limits the design options in the vehicle

Method used

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  • Actuation plate with symbol illumination for a sensor switch button
  • Actuation plate with symbol illumination for a sensor switch button
  • Actuation plate with symbol illumination for a sensor switch button

Examples

Experimental program
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Embodiment Construction

[0033] figure 1 Shown is a sensor switch button 1 with integrated activation pad 10 and symbol illumination. The first surface 13 of the activation pad 10 is covered by a cover 17 . The cover 17 is used to protect the sensor surface and to hold the activation plate 10 on the housing 2 of the switch. The cover 17 has a depression in the middle region of the surface, into which the luminescent layer 30 is embedded. The light guide 20 extends in the direction of the activation pad 10 from a light source 40 attached to the second printed circuit board. The light guide 20 reaches the activation pad 10 at the second surface 13b. In this embodiment, the activation pad 10 is removably connected to the housing 2 . Here, the light guide 20 is formed by a flexible polymer optical fiber.

[0034] figure 2 A top view of the first surface 13 of the activation pad 10 is shown. A plurality of metal layers 15 are applied to the support plate 12 , which are separated from each other by na...

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Abstract

An actuation plate (10) with symbol illumination for a sensor switch button (1) includes a support plate (12) with a first surface (13) on which a metal layer (15) is applied. A luminous layer (30) of light-scattering material is applied on the support plate and at least partially on the metal layer (15). An opening (14) is provided in the support plate through which a first end (22) of a light guide projects, and a second end (23) of the light guide is optically connected to a light source (40). The luminous layer (30) is adjacent to the first end (22) of the light guide.

Description

technical field [0001] The invention relates to an actuation plate with symbol illumination for a sensor switch button used in a switching device of a vehicle. Background technique [0002] In recent years, switches operated by tapping with fingers are used in vehicles. These switches are very advantageous because they require no mechanical parts and are therefore very robust. These switches are already used in vehicles to toggle various functions. Unfortunately, children who use body parts such as knees or feet to inadvertently activate such a switch while leaving the interior of the vehicle unattended may be injured. For example, serious injury could occur if a child with an electrically powered sliding roof is activated with his foot while at the same time his body part is in the opening of the sliding roof. This situation requires the development of sensors that detect how large the contact area of ​​an object is. A capacitive sensor suitable for distinguishing the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/96
CPCH03K17/962H03K2217/96079H03K2217/96077G02B6/0008G02B6/0051
Inventor E·赖施尔
Owner DELPHI TECH INC
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