Switch Contact Bypass Structure for Vibration Arc Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional power tool switches are prone to disconnection due to vibration, leading to electric arcs that can damage appliances and circuits, posing safety risks.
Innovation Solution
A switching device with a conductive connecting member that maintains electrical connection between the electricity leading member and the power transmission member, even when the primary contact points disconnect, ensuring continuous current flow and preventing electric arcs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a traditional power tool switch uses two unit components contacting to realize conduction, then the structure is simple, but vibration causes disconnection of 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 maintains electrical connection through vibration by providing alternative conduction paths, preventing direct contact disconnection and electric arc generation while preserving structural simplicity
2Reliability
If the contact connection is made more stable to prevent disconnection, then reliability improves, but the device structure becomes more complex
Solution Approach 1:
The patent segments the electrical connection path into multiple independent conduction routes: one through the primary contact connection and another through the conductive connecting member. This segmentation ensures that vibration-induced disconnection of one path does not affect the other, improving reliability while adding only minimal structural complexity
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
The solution effectively prevents electric arcs and ensures safe operation by maintaining current flow through the conductive connecting member, even under vibration, thus protecting electric 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
Data Source
Figure 1
Figure 2
Figure 3
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. In the above-mentioned switching device, when the switching device is vibrated so that the contact between the first contact portion and the second contact portion is disengaged, at this moment, since the conductive connecting member is still electrically connected with the electricity leading member and the power transmission member, the channel formed by the power supply terminal, the electricity leading member, the conductive connecting member, the power transmission member and the electric equipment is not disconnected, which can ensure that the current flows from the power supply terminal to the electric equipment normally, so as to avoid electric arc produced at the position where the first contact portion and the second contact portion are disconnected, protect electric appliances and circuits, and eliminate unsafe factors.