Integral Contact Body for Low Voltage Switch Series Connection
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Solution Overview
Problem
Conventional multiple-pole switches experience excessive overheating and potential failures due to high electrical resistance and loose connections caused by threaded attachments, which require frequent maintenance and pose safety risks.
Innovation Solution
A low voltage switch with integral multiple contacts formed from a single piece of conductor material, eliminating the need for external bridges and reducing material interruptions and resistivity, ensuring continuous current flow and improved thermal management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If threaded attachments (screws and flat bars) are used to connect contacts in series, then the switch can be assembled with separate components, but electrical resistance increases and overheating occurs
Solution Approach 1:
The patent merges multiple separate contact components into a single integral contact body. Instead of using separate flat bars and screwed connections to link contacts in series, the invention creates one unified contact piece that inherently provides the series connection path, eliminating the threaded attachments and their associated resistance and reliability issues.
Solution Approach 2:
While the contact body is integral, the patent segments the connection function from the structural support function. The integral contact body provides both the electrical connection path and mechanical stability, removing the need for separate threaded fasteners and bridge components that created the original problems.
2Ease of manufacture
If threaded attachments are used to connect contacts, then component assembly is possible, but maintenance frequency increases due to loosening
Solution Approach 1:
By combining the connection function and structural function into the integral contact body, the patent eliminates threaded attachments that are prone to loosening. The unified design removes the need for periodic maintenance to check and tighten screws, as there are no separate threaded connections to degrade over time.
3Ease of manufacture
If threaded attachments are used for connection, then assembly is flexible, but safety risks increase due to poor contact and overheating
Solution Approach 1:
The integral contact body merges electrical conduction and mechanical connection into a single reliable structure, eliminating the threaded attachments that create high resistance points. This unified design ensures consistent electrical contact and eliminates the overheating and fire risks associated with loose or poor threaded connections.
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 overheating and enhances safety by maintaining consistent contact pressure, reducing maintenance needs, and ensuring reliable operation while adhering to temperature and safety regulations.
Implementation Method 1
an integral piece made of a suitable conductor material connecting the poles of the switch associated with said contacts in series
Implementation Method 2
maintaining consistent contact pressure
Data Source
Figure 1a
Figure 1b~1c
Figure 1d
AI summary
The invention relates to a switch and/or circuit breaker incorporating various cut-off poles that can be connected in series to reduce the cut-off voltage. The electric breaker switch comprises two groups of fixed contacts and a group of moving contacts able to move between an electrical cut-off position and an electrical closure position in which, and it incorporates at least one integral part made of a conductor material forming two fixed contacts of the same group of contacts, connecting the poles of the switch associated with said contacts in series. As a result of said integral part, several poles are more effectively and more safely connected in series, preventing excessive overheating of the terminals and possible switch failures.