Fireproof Fuse Assembly for Surge Arrester Indicator Containment

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Solution Overview

Problem

Existing surge arrester protective assemblies face challenges in providing a unified solution for securing burst parts, as different holders are required based on the expected bursting behavior, which complicates the design and installation process.

Innovation Solution

A fireproof receptacle is integrated to house the surge arrester indicator, providing thermal insulation, shatter resistance, and soundproofing, ensuring the secure containment and protection of sensitive components, including mechanically tensioned and chemical assemblies, while maintaining fire resistance and preventing fragment penetration or escape.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If different holders are used to secure different parts of the disconnecting device based on expected bursting behavior, then the securing effectiveness is improved, but the device complexity increases

Engineering Contradiction:
Improvesecuring effectivenessVSAvoidholder configuration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies universality by designing a single fireproof receptacle that can contain the entire disconnecting device or indicator assembly, replacing the need for multiple specialized holders. The receptacle serves multiple functions: thermal insulation, mechanical containment, and protection against bursting fragments, thereby simplifying the overall structure while maintaining security effectiveness.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The invention merges the functions of multiple holders into a single integrated fireproof receptacle. Instead of using separate holders for different components of the disconnecting device, the receptacle consolidates all protective functions into one unified structure, reducing complexity while ensuring comprehensive protection.

Inventive Principle:
Principle #5Merging (Combining)

2Reliability

If a fireproof receptacle is used to house the surge arrester indicator, then the protective effect is improved, but the device complexity increases

Engineering Contradiction:
Improveprotective effectVSAvoidreceptacle integration complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent extracts the protective function from the complex multi-holder system and places it into a dedicated fireproof receptacle. This separation allows the receptacle to specialize in protection while the disconnecting device maintains its functional design, achieving improved protection without proportionally increasing overall complexity.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The fireproof receptacle is designed to house the disconnecting device or indicator assembly within it, creating a nested structure. This nesting approach allows the protective receptacle to encompass the functional components without adding significant external complexity, as the protection is integrated at a higher structural level.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Object-affected harmful factors

If the receptacle is designed to be fireproof, shatterproof, and soundproof, then the protection against thermal, mechanical, and acoustic stresses is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improveprotection against thermal, mechanical, and acoustic stressesVSAvoidmanufacturing complexity
Core Design Contradiction:
Object-affected harmful factorsVSEase of manufacture

Solution Approach 1:

The patent employs composite materials or multi-layer construction for the fireproof receptacle to achieve fire resistance, shatter resistance, and soundproofing properties. By using composite structures, the receptacle gains multiple protective functions simultaneously without requiring separate components for each protection type, thereby managing manufacturing complexity while enhancing overall protection.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The receptacle design applies different material properties or protective features to specific regions as needed. For example, certain areas may have enhanced fire resistance while other areas focus on shatter resistance, allowing optimized protection against different harmful factors without uniformly increasing manufacturing complexity across the entire structure.

Inventive Principle:
Principle #3Local quality

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 fireproof receptacle effectively protects the surge arrester indicator from thermal, mechanical, and acoustic stresses, ensuring safe operation and transport by containing thermal energy and preventing damage from bursting or shattering, while maintaining fire resistance and soundproofing.

Implementation Method 1

providing thermal insulation, shatter resistance, and soundproofing

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

providing thermal insulation, shatter resistance, and soundproofing

Methodology Applied
Scientific EffectSoundproofing: Acoustic Absorption

Data Source

PatentUS20240029926A1Fuse assembly of a surge arrester indicator
Publication Date: 2024.01.25 SIEMENS ENERGY GLOBAL GMBH & CO KG
  • US20240029926A1 patent drawing
  • US20240029926A1 patent drawing
  • US20240029926A1 patent drawing

AI summary

A fuse assembly is formed with a receiving chamber. The receiving chamber is used for receiving a surge arrester indicator. The receiving chamber is a fireproof chamber and the surge arrester indicator is arranged in the fireproof receiving chamber.