Switch Contact Assembly With Flexible Conductor Against Vibration Arcing
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Solution Overview
Problem
Conventional power tool switches are prone to disconnection due to vibration, leading to electric arcs that can damage appliances and circuits.
Innovation Solution
A switching device with an electricity leading member, power transmission member, and conductive connecting member, where the conductive connecting member maintains electrical connection through flexible or clamping mechanisms to ensure current flow even when contact points disconnect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional power tool switch uses two unit components contacting with each other to realize conduction, then the structure is simple, but vibration causes disconnection of the contact connection leading to electric arcs
Solution Approach 1:
The patent introduces a conductive connecting member as an intermediary component between the electricity leading member and the power transmission member. This mediator provides an alternative current path that maintains electrical connection stability during vibration, preventing contact disconnection and electric arc generation while preserving the overall simplicity of the switch structure.
2Reliability
If the contact connection is made rigid to prevent disconnection, then connection stability improves, but the switching device cannot respond quickly to switching operations
Solution Approach 1:
The patent employs a flexible conductive connecting member that dynamically adapts its state based on operational conditions. During normal operation, the flexible member maintains electrical connection while allowing mechanical movement for quick switching. During vibration, the flexibility absorbs mechanical stress, preventing disconnection while maintaining electrical continuity, thus achieving both stability and responsiveness.
3Object-affected harmful factors
If a conductive connecting member is added to prevent electric arcs, then safety improves, but the device complexity increases
Solution Approach 1:
The conductive connecting member serves multiple functions simultaneously: it provides the alternative current path to prevent electric arcs, maintains electrical connection during vibration, and allows mechanical flexibility for switching operations. This multi-functionality achieves electric arc prevention without proportionally increasing device complexity, as one component accomplishes multiple protective and operational goals.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Prevents electric arcs and ensures continuous current flow by maintaining electrical connection despite vibration, protecting appliances and circuits.
Implementation Method 1
the conductive connecting member may be conductive, so the conductive connecting member may electrically connect the electricity leading member and the power transmission member, thereby forming another channel for the current to pass through
Implementation Method 2
the conductive connecting member is a flexible conductive member with variable distance between its two ends, that is, the length of the flexible conductive member may be extended or shortened, when the first contact portion and the second contact portion are out of contact, that is, the distance between the electricity leading member and the power transmission member is increased, the flexible conductive member may be stretched to keep the flexible conductive member still connected to the electricity leading member and the power transmission member
Data Source
AI summary
The present disclosure provides a switching device, which includes an electricity leading member, a power transmission member, and a conductive connecting member. The first end of the electricity leading member is configured to be electrically connected with the power supply terminal, and the second end of the electricity leading member is provided with a first contact portion; the power transmission member is provided with a second contact portion, and the second contact portion is configured to contact and be electrically connected with the first contact portion; one end of the conductive connecting member is connected with the electricity leading member, the other end is connected with the power transmission member, the electricity leading member is electrically connected with the power transmission member through the conductive connecting member.