Phase Busbar with Merged Release Mechanism for Spring Clamp Contacts
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Solution Overview
Problem
Existing phase busbars with multiple connecting lugs are difficult to connect and disconnect from spring clamp contacts, as releasing all clamped terminal lugs requires deflection of multiple springs simultaneously, which is impractical for a single user to achieve without multiple screwdrivers.
Innovation Solution
Integration of a release element on the phase busbar with a movable wedge-shaped section that can be actuated to deflect clamping springs, allowing simultaneous release of all terminal lugs with a single actuating element, and a latching mechanism for secure connection and easy disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple spring clamp contacts are used to connect multiple terminal lugs, then electrical connection capability is improved, but disconnection becomes difficult requiring multiple screwdrivers
Solution Approach 1:
Multiple release elements are integrated into a single unified actuating mechanism. When the actuating element is operated, it simultaneously actuates all release elements, which in turn simultaneously deflect all clamping springs, enabling all terminal lugs to be released at once with a single operation.
Solution Approach 2:
Release elements serve as intermediaries between the actuating element and the clamping springs. The release elements transmit the actuating force to deflect the clamping springs, enabling indirect control of the spring clamp contacts through a centralized actuating mechanism.
2Reliability
If screw terminal contacts are used for each connecting lug, then reliable electrical connection is achieved, but assembly and disassembly time increases due to individual screw tightening
Solution Approach 1:
Multiple individual screw tightening operations are replaced by a single actuating operation that simultaneously engages all spring clamp contacts. The actuating element transfers force through release elements to all clamping springs at once, achieving reliable mechanical and electrical connection for all terminal lugs in one action.
3Strength
If multiple clamping springs are used to secure multiple terminal lugs, then mechanical fixation strength is improved, but release operation becomes complex requiring simultaneous spring deflection
Solution Approach 1:
Multiple independent spring deflection operations are merged into a single actuating action. The actuating element, through the release elements, simultaneously deflects all clamping springs, maintaining strong mechanical fixation during operation while simplifying the release process to a single action.
Solution Approach 2:
Release elements act as intermediaries that translate the single actuating motion into simultaneous deflection of multiple clamping springs. This intermediary mechanism distributes the actuating force to all springs uniformly, enabling coordinated release without requiring complex individual operations for each spring.
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
Enables easy connection and disconnection of the phase busbar from multiple spring clamp contacts with a single actuation, improving user convenience and reducing the need for multiple screwdrivers, while maintaining secure electrical and mechanical fixation.
Implementation Method 1
clamping springs of spring clamp contacts can be deflected by means of the solvent in such a way that the connecting lug can be pulled out of the corresponding spring clamp contact
Implementation Method 2
the release means each have a wedge-shaped section which can be pushed into the release position in the manner of a screwdriver in the spring clamp contact
Data Source
Figure 1~3
AI summary
The invention relates to a busbar (10) with an insulating housing (20) and at least one electrically conductive pole bar (30) arranged in the insulating housing (20), on which at least two connecting lugs (32) are arranged, which are brought out of the insulating housing (20) with a connection area (34), wherein a solvent (40) is arranged on the busbar (10) for each of the connecting lugs (32), which is movable between a neutral position and a release position, and wherein an actuating element (50) is arranged on the housing (20), by means of which the solvents (40) can be moved from the neutral position to the release position when actuated.