Multi-Function Switch Module With Single-Substrate Sensor Layout

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Solution Overview

Problem

Conventional vehicular switch devices require multiple substrates, leading to increased space requirements and manufacturing costs due to their integrated structure, which complicates assembly and design.

Innovation Solution

A multi-function switch device with a single substrate configuration, featuring a composite switch unit for axial rotation and axial movement, and a button switch unit, minimizing substrate count and optimizing internal arrangement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple substrates are used to arrange each switch detecting sensor in a combined switch configuration, then each switch unit can be separately arranged for independent operation, but the number of substrates increases leading to increased space requirements and manufacturing costs

Engineering Contradiction:

Improveswitch function independenceVSAvoidnumber of substrates

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple switch detecting sensors onto a single substrate, merging functions that were previously distributed across multiple substrates. This reduces the overall number of substrates required while maintaining the ability to detect multiple switch operations independently, thereby reducing space requirements and manufacturing costs without sacrificing functional independence

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The single substrate is designed to support multiple switch detecting sensors that can detect different types of switch operations (rotation, axial movement, button pressing). This universal substrate performs multiple functions simultaneously, eliminating the need for separate dedicated substrates for each switch unit while maintaining independent detection capabilities

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple substrates are used to arrange each switch detecting sensor, then each switch unit can be separately arranged, but the arrangement space is narrowed and assembly process becomes more complex

Engineering Contradiction:

Improveswitch unit separate operationVSAvoidarrangement space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

By merging multiple switch detecting sensors onto a single substrate, the patent consolidates the spatial arrangement requirements. Instead of needing separate substrates that consume additional space, all sensors are integrated onto one substrate, thereby expanding the available arrangement space while maintaining the ability to separately arrange and operate different switch units

Inventive Principle:

Principle #5Merging (Combining)

3Reliability

If multiple substrates are used in the combined switch configuration, then comprehensive sensor coverage is achieved, but manufacturing costs increase

Engineering Contradiction:

Improvesensor coverageVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

The patent merges multiple switch detecting sensors onto a single substrate, reducing the total number of substrates that need to be manufactured, assembled, and tested. This consolidation maintains comprehensive sensor coverage for reliable switch detection while significantly reducing manufacturing costs by eliminating redundant substrate production and assembly processes

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS20260008338A1Multi-functions switch unit, and multi-functions switch module

Publication Date: 2026.01.08 LS AUTOMOTIVE TECH CO LTD

AI summary

The present invention provides a multi-function switch unit (10) comprising a plurality of switch units (300, 300a, 500)) disposed spaced apart from each other in a housing (100), wherein each of the plurality of switch units is at least partially disposed on a single substrate (200).