Conduction Breaking Device Cutter Block Positioning
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Solution Overview
Problem
Conventional conduction breaking devices require complex adjustments to ensure accurate positioning of the cutter block relative to the cutting edge, which complicates the cutting process and can lead to poor cutting performance.
Innovation Solution
The conduction breaking device features a cutter block attached to the cuttable portion such that before gas generation, part of the cutter block is positioned close to the cutting edge, allowing for easy adjustment and stable cutting performance, with the cutter block being fixed to the cuttable portion through insert molding and having a block leading portion that engages with the cutting chamber opening to determine its position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire cutter block is located in the accommodating chamber before gas generation, then there is adequate clearance between the cutter block and cutting edge portion, but the positions of components need to be adjusted accurately which involves a complicated process
Solution Approach 1:
The cutter block is pre-positioned such that part of it protrudes into the cutting chamber before gas generation, establishing the correct relative position between the cutter block and cutting edge portion in advance. This preliminary positioning eliminates the need for complex post-assembly adjustments and ensures reliable cutting performance from the start.
2Manufacturing precision
If the distance between the cutter block and cutting edge portion is reduced to a significantly small value, then stable cutting performance is achieved, but complex adjustment is required to ensure accurate positioning
Solution Approach 1:
The cutter block is designed to protrude into the cutting chamber before gas generation, pre-establishing the precise spacing needed for stable cutting. This design incorporates the required small distance between the cutter block and cutting edge portion directly into the component geometry, eliminating the need for complex assembly adjustments to achieve manufacturing precision.
Solution Approach 2:
The cutter block is positioned in multiple dimensions: it protrudes into the cutting chamber in the lateral direction while maintaining adequate clearance in the thickness direction. This multi-dimensional positioning approach allows achieving precise cutting geometry without complex single-dimension adjustments.
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
This configuration enables easy adjustment of the cutter block's position relative to the cutting edge, ensuring stable cutting of the cuttable portion and efficient disconnection of conduction between devices in the electric circuit.
Implementation Method 1
The gas generator (83) generates gas. The gas pushes the cutter block (84) toward the cutting chamber (82)
Data Source
AI summary
A conduction breaking device is provided that uses gas from a gas generator to move a cutter block in the thickness direction of a cuttable portion, thereby cutting the cuttable portion between the moving cutter block and a cutting edge portion of a cutting chamber. The cutter block is attached to the cuttable portion such that, before generation of gas by the gas generator, a part of the cutter block is located in the cutting chamber and at a position close to the cutting edge portion in a direction along the surface of the cuttable portion.