Fuse Link Exhaust Diverter for Safe Gas Management
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Solution Overview
Problem
Current exhaust systems for power fuse assemblies are inadequate in diverting exhaust gases away from personnel and are often too large to swing freely through the hinge assembly, leading to potential pressure drops and safety concerns.
Innovation Solution
A hinge assembly with a diverter component that redirects exhaust gases from the fuse unit at a non-zero angle, allowing for safe diversion and incorporating a self-opening cap to protect against rain and climate conditions, while maintaining free flow during normal operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If a silencer assembly is mounted to capture exhaust gases, then exhaust capture is improved, but the assembly becomes too large to swing freely through the hinge assembly
Solution Approach 1:
The exhaust system is divided into multiple segments: a fixed exhaust port in the fuse mounting, a movable exhaust shield with deflectors that can swing independently, and a separate silencer assembly. This segmentation allows the shield to swing freely for operation while the silencer remains positioned for effective exhaust capture.
Solution Approach 2:
The exhaust shield is designed to be movable rather than fixed, allowing it to swing freely through the hinge assembly during normal operation. The shield can be positioned in different orientations to accommodate maintenance activities while maintaining exhaust capture capability when needed.
2Object-affected harmful factors
If exhaust gases are diverted away from personnel, then safety is improved, but pressure drops occur in the exhaust path
Solution Approach 1:
The exhaust system uses localized deflectors positioned strategically to redirect exhaust gases away from personnel in specific directions. The deflectors are shaped and positioned to guide flow locally without creating significant pressure drops, allowing safety improvement while maintaining exhaust system performance.
3Ease of operation
If the exhaust system is designed to swing freely, then ease of maintenance is improved, but exhaust diversion capability deteriorates
Solution Approach 1:
The system separates the movable exhaust shield (for maintenance accessibility) from the fixed silencer assembly (for exhaust diversion). The shield can swing freely to allow maintenance personnel to access and maintain the fuse unit, while the silencer remains in a fixed position to continuously divert exhaust gases away from personnel.
Solution Approach 2:
The exhaust shield acts as an intermediary component between the fuse unit and the silencer assembly. It can be positioned to allow exhaust flow to the silencer during normal operation, and swung away during maintenance to provide access, while the silencer continuously performs the exhaust diversion function.
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
Effectively diverts exhaust gases away from operators and allows for safe maintenance by redirecting them at a controlled angle, preventing pressure drops and ensuring the system's operational integrity.
Implementation Method 1
A diverter component is disposed between the inlet and the outlet and configured to guide the flow of gases from the inlet in the first orientation and to the outlet in the second orientation
Data Source
AI summary
A power fuse assembly includes a fuse mounting, a fuse unit, and a hinge assembly. The fuse unit is configured to carry current from a line connection to a load connection. The hinge assembly is configured to be removeably coupled to the fuse unit and to allow rotation of the fuse unit relative to the fuse mounting. The hinge assembly including: an inlet configured to accept incoming gases produced by the fuse unit in response to an overload event, the inlet having a first orientation; an outlet in fluid communication with the inlet, the outlet having a second orientation that is not equal to the first orientation; and a diverter component disposed between the inlet and the outlet, the diverter configured to guide the flow of the gases between the inlet and the outlet.