Steering Column Switch Module for Easier Processor Replacement
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Solution Overview
Problem
The existing switch devices installed in vehicles face challenges in enhancing workability for replacing processors that handle signal processing, particularly due to the need for decoupling the support and lever switch, which complicates the replacement process and requires operators to access narrow spaces.
Innovation Solution
A switch device configuration featuring a snap-fit structure that allows the processing unit to be attached and detached from below the support without decoupling the switch, with connectors facing downward for blind manipulation, enabling easier replacement and improved accessibility without requiring operators to enter narrow spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the processor is integrated with the support and switch assembly, then the structural integrity and signal transmission are improved, but the replacement workability and accessibility are worsened due to requiring decoupling of support and lever switch in narrow spaces
Solution Approach 1:
The processing unit is segmented from the support structure, allowing the processor to be replaced independently without decoupling the switch and support. The processing unit includes the processor and connector, forming a separate replaceable module that maintains signal transmission integrity while improving replacement accessibility.
Solution Approach 2:
A cable connector serves as an intermediary between the switch and processor, allowing the processor to be replaced by simply disconnecting and reconnecting the cable. This mediator enables independent replacement of the processing unit without affecting the switch-support assembly.
2Stability of the object's composition
If the connector is positioned upward for conventional installation, then the connection stability is improved, but the replacement accessibility is worsened as operators must access narrow spaces below the steering column
Solution Approach 1:
The connector is inverted to face downward instead of upward, allowing operators to access and manipulate the connector from above the steering column rather than from below. This inversion maintains connection stability through proper engagement while dramatically improving replacement accessibility by eliminating the need to access narrow confined spaces.
3Ease of operation
If the switch is decoupled from the support for processor replacement, then the processor accessibility is improved, but the device complexity and time required for replacement are worsened
Solution Approach 1:
The processing unit is segmented as a separate module containing the processor and connector, allowing it to be replaced independently without affecting the switch-support assembly. This segmentation simplifies the replacement procedure to basic connector operations while maintaining processor accessibility.
Solution Approach 2:
The connector is pre-positioned and designed for tool-free connection and disconnection, allowing the processing unit to be replaced quickly without requiring complex disassembly procedures. The preliminary design of the connector interface enables simple plug-and-play replacement.
Data Source
AI summary
A support is adapted to be coupled to a steering shaft configured to change a traveling direction of a vehicle. A switch is coupled to the support and configured to output a signal in accordance with an operation of a driver of the vehicle. A processing unit includes a connector configured to accept connection of a cable for transmitting the signal, and a processor configured to process the signal. At least one snap-fit structure configured to allow attachment and detachment of the processing unit from below the support under a condition that the switch is still coupled to the support. The connector faces downward under a condition that the processing unit is attached to the support.