Guide Body Protects Touch-Sensitive Component in Vehicle Lighting
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Solution Overview
Problem
Existing electronic assemblies for vehicle lighting devices with touch-sensitive components often suffer damage due to accidental contact with other objects during assembly or handling, as these components lack adequate protection against external objects.
Innovation Solution
Incorporating a guide body adjacent to the touch-sensitive component on the carrier body, which is designed to protrude slightly higher than the component, ensuring that any external object first contacts the guide body before reaching the sensitive component, thereby preventing damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If touch-sensitive components are arranged freely on the carrier body, then ease of manufacture is improved, but reliability deteriorates due to risk of contact damage with other objects
Solution Approach 1:
A guide body is introduced as an intermediary protective element between the touch-sensitive component and external objects. The guide body protrudes higher than the touch-sensitive component and intercepts contact from light guide bodies or other objects during assembly, preventing direct contact with the sensitive component while maintaining the simple SMD mounting structure
Solution Approach 2:
The guide body is positioned in advance around the touch-sensitive component to provide protective coverage before assembly operations occur. By protruding higher than the sensitive component, it creates a protective barrier that absorbs or deflects potential contact damage during subsequent assembly steps
2Reliability
If the guide body protrudes higher than the touch-sensitive component, then protection against contact damage is improved, but device complexity increases
Solution Approach 1:
The guide body serves multiple functions: it acts as a protective barrier against contact damage, provides mechanical guidance during assembly, and maintains structural integrity. By combining these functions into a single component, the solution avoids adding separate protective elements that would increase complexity
Solution Approach 2:
The guide body is integrated with the carrier body structure, merging the protective function with the existing mounting substrate. This integration approach avoids adding independent complex protective structures while achieving the desired protection level
Data Source
Figure 1~4
AI summary
The invention relates to an electronic unit (1), in particular for a lighting device of a vehicle, comprising at least one touch-sensitive component (10) which is received on a carrier body (11) and which projects at least partly beyond the surface (12) of the carrier body (11). The aim of the invention is to protect the touch-sensitive component (10) from being contacted by other objects (14). According to the invention, this is achieved in that at least one guiding body (13) is received on the carrier body (11) adjacently to the touch-sensitive component (10), said guiding body (13) being produced with such a shape and size that the touch-sensitive component (10) is protected from being contacted by other objects (14) by the guiding body (13).