Fuse Puller With Integrated Measuring Circuit
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Solution Overview
Problem
Conventional fuse pullers lack the capability to measure and provide diagnostic information about the electrical supply line parameters, such as fuse continuity, current, voltage, temperature, and fault conditions, limiting their functionality beyond simple fuse insertion and removal.
Innovation Solution
A fuse puller equipped with a measuring circuit that includes sensors and a digital signal processor to quantify various supply line parameters like fuse continuity, current, voltage, temperature, and fault conditions, along with a display unit and communication capabilities to provide diagnostic information to the user.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If a conventional fuse puller is used for inserting and removing fuses, then the basic function of fuse replacement is achieved, but no diagnostic information about the electrical supply line is provided
Solution Approach 1:
The fuse puller is designed to perform multiple functions: it not only grips and removes fuses but also measures electrical parameters (voltage, current, temperature) and provides diagnostic information through a display unit. This multi-functionality approach allows a single device to serve both mechanical operation and electrical diagnostics, reducing information loss without proportionally increasing complexity
Solution Approach 2:
The measuring circuit is integrated into the fuse puller housing, combining the mechanical gripping function with electrical measurement capabilities. Sensors for voltage, current, and temperature detection are incorporated within the same device structure, merging multiple functional elements into a unified tool that provides comprehensive diagnostic information
2Ease of operation
If a fuse holder is designed to be removable from the mating receptacle for fuse replacement, then manual fuse access is enabled, but user exposure to electric shock and blown fuse effects increases
Solution Approach 1:
The fuse puller acts as an intermediary tool between the user and the fuse holder. It engages with the fuse holder's gripping portion through a coupling mechanism, allowing the user to operate the fuse holder remotely without direct hand contact. This intermediary approach enables easy fuse replacement while protecting the user from electric shock and the harmful effects of blown fuses
3Reliability
If the fuse holder includes a gripping portion for fuse engagement, then secure fuse holding is achieved, but the fuse holder requires a specific coupling mechanism that increases device complexity
Solution Approach 1:
Instead of the fuse holder directly gripping the fuse, the design inverts the gripping mechanism: the fuse holder has an internal gripping portion that engages with the fuse, while the fuse puller has an external coupling mechanism that engages with the fuse holder's gripping portion. This inverted arrangement allows secure fuse holding while enabling remote operation through the coupling interface
Data Source
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AI summary
A fuse puller for inserting a fuse into and removing a fuse from a fuse holder. The fuse puller has a fuse gripping portion for gripping a fuse. The fuse puller also has a measuring circuit arranged to measure a plurality of supply line parameters when a fuse is gripped by said gripping portion and held in a supply line of an electric supply.