Electric Switch Thermal Expansion Compensation
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Solution Overview
Problem
Existing electrical switching devices experience energy loss due to heat at connecting parts, leading to reduced efficiency, as they require duplicate electrical connections to compensate for thermally induced linear expansions of conductor pieces.
Innovation Solution
An electrical switching device with a support insulator and a ring that allows movement of the conductor piece, eliminating the need for complex electrical connections and reducing energy loss by allowing thermal expansion compensation without current flow through the ring, thus simplifying the construction and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If two connecting parts are used to compensate for thermal expansion of conductor pieces, then thermal expansion compensation is achieved, but energy loss occurs due to heat at the connecting parts
Solution Approach 1:
The patent divides the system into two independent spaces separated by a support insulator, with conductor pieces in each space independently compensating for thermal expansion. This eliminates the need for duplicate connecting parts between spaces, reducing energy loss while maintaining thermal expansion compensation capability in each space.
Solution Approach 2:
The patent extracts the electrical connection function from the thermal expansion compensation mechanism by using a support insulator that allows mechanical movement without electrical conduction. This separation enables thermal expansion compensation without requiring current-carrying connecting parts, thereby eliminating energy loss at connections.
2Adaptability or versatility
If duplicate electrical connections are used to compensate for thermal expansion, then thermal expansion is compensated, but device complexity increases
Solution Approach 1:
The patent segments the switching device into two independent spaces with separate thermal expansion compensation mechanisms. Each space uses a simple conductor piece movement within its own space, eliminating the need for complex duplicate electrical connections between spaces and reducing overall device complexity.
Solution Approach 2:
The support insulator acts as an intermediary that allows mechanical movement for thermal expansion compensation while maintaining electrical insulation between spaces. This eliminates the need for complex electrical connecting parts, simplifying the overall construction.
3Adaptability or versatility
If connecting parts are used for thermal expansion compensation, then thermal expansion is compensated, but heat loss occurs reducing efficiency
Solution Approach 1:
The patent extracts the electrical conduction function from the thermal expansion compensation mechanism by using non-conductive support insulators. This allows thermal expansion compensation through mechanical movement without current flow, eliminating heat loss at connecting parts and improving overall efficiency.
Solution Approach 2:
The support insulator serves as a mediator that enables mechanical movement for thermal expansion compensation while blocking electrical current. This eliminates energy loss at connection points and improves the efficiency of the switching device.
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 compensates for thermally induced linear expansions, reduces energy loss, and simplifies the construction by eliminating the need for duplicate electrical connections, resulting in improved efficiency and cost-effectiveness.
Implementation Method 1
thermally induced linear expansions of the first conductor section can be compensated for with regard to the post insulator
Data Source
Figure 1~2
AI summary
The device (10) has two chambers (41, 42) in which conductor portion (26) and components of the switching device are housed. A supporting insulator (20) separates two chambers, where the conductor portion is passed through the chambers. A metal ring (24) is assigned to the supporting insulator, and the conductor potion is passed such that movement of the conductor portion is made in the ring. A sealing ring is present between the conductor portion and the ring. A contact element is present between the conductor portion and the ring.