Split Movable Head Assembly for Reliable Electromagnetic Switching
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Solution Overview
Problem
Existing electromagnetic switching devices face challenges in facilitating the simultaneous and efficient assembly and replacement of coils and main electrical conductors, while ensuring proper insulation and mechanical robustness, particularly due to the use of split enclosures and unreliable connections between coil power conductors.
Innovation Solution
A switching device design with a coil and fixed cores positioned above the main power conductors, incorporating auxiliary and command conductors on the upper part, and using a split movable carrier for simplified assembly and access, eliminating the need for internal split enclosures and improving insulation between conductor chambers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single moveable head design is used, then the structure is simple, but the electrical connection reliability is insufficient
Solution Approach 1:
The moveable head is divided into two separate parts: a first moveable head containing a first electrical conductor and a second moveable head containing a second electrical conductor. These two parts work together to establish electrical connections with both ends of the stationary electrical conductor, thereby improving connection reliability while maintaining reasonable structural complexity through modular design.
2Reliability
If multiple conductors are integrated into a single moveable head, then connection reliability improves, but manufacturing complexity increases
Solution Approach 1:
Instead of manufacturing a single complex moveable head with multiple conductors, the design segments the structure into two simpler moveable heads, each containing one electrical conductor. This segmentation makes each component easier to manufacture independently while achieving the same reliability benefit through the combined action of both parts.
Solution Approach 2:
The two moveable heads act as intermediary elements that separately connect to each end of the stationary electrical conductor. This intermediary approach simplifies the manufacturing of each individual moveable head while maintaining overall system reliability through the distributed connection architecture.
3Productivity
If a single moveable head is used, then the device is easier to operate, but switching speed is limited
Solution Approach 1:
The switching operation is segmented into two independent actions: the first moveable head switches at its first end of the stationary electrical conductor, and the second moveable head switches at its second end. This segmentation enables parallel switching operations, effectively doubling the switching speed while keeping each individual operation simple and easy to control.
Data Source
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AI summary
The present invention refers to a switching device (A) comprising at least one pair of main fixed elongated conductor members (3a, 3a') arranged on said lower set (3) wherein each said main fixed elongated conductor member (3a, 3a') comprises a conductor end (3b, 3b'), wherein said conductor ends (3b, 3b') of said pair of main fixed elongated conductor members (3a, 3a') are separated from each other by a gap (3h); a stationary intermediate set (2) which comprises a fixed core (2a) and a coil (2d), arranged above said lower set (3); an upper cover (1) arranged above said stationary intermediate set (2); and a split movable carrier (2.1) comprising an upper portion (2.1a), arranged above said fixed core (2a) and a lower portion (2.1b) arranged below said fixed core (2a), which houses at least one main movable conductor bridge (2.1d) comprising conductor ends (2.1s, 2.1s'); wherein said upper part (2.1a) of said split movable carrier (2.1) houses a movable core (2.1c) and at least one auxiliary movable conductor bridge (2.1g) comprising conductor ends (2.1q, 2.1q') and wherein said lower portion (2.1b) houses at least one main movable conductor bridge (2.1d) .