Current Measuring Device Asymmetric Terminal Placement
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Solution Overview
Problem
Conventional current measuring devices with integrated temperature detection circuits and electronic components are bulky, making them large and difficult to mount additional components.
Innovation Solution
A current measuring device design featuring a conductor with voltage sensing terminals arranged closer to one end of a long substrate, allowing for a narrower substrate width and space for electronic components, along with a base for fixation and a case that maintains a smooth appearance without bulges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic components are mounted on a circuit board with conventional structure, then current measurement function is achieved, but device size increases
Solution Approach 1:
The patent combines the conductor serving as both current path and mounting substrate, eliminating the need for separate circuit boards. The voltage sensing terminals are directly connected to the conductor, merging multiple functions into a single integrated structure that reduces device size while maintaining measurement capability
Solution Approach 2:
The conductor serves multiple functions simultaneously: it acts as the current carrying path, the mounting substrate for voltage sensing terminals, and the structural base for the entire measurement device. This multi-functionality eliminates redundant components and reduces overall device volume
2Reliability
If voltage sensing terminals are arranged centrally on substrate, then electrical connection is optimized, but space for electronic components is reduced
Solution Approach 1:
The patent employs asymmetric arrangement where voltage sensing terminals are positioned closer to one end of the conductor rather than centrally. This asymmetric configuration creates unoccupied space at the opposite end, enabling mounting of electronic components while maintaining effective electrical connection for voltage sensing
3Adaptability or versatility
If substrate width is increased to accommodate electronic components, then mountability is improved, but device width increases
Solution Approach 1:
The patent utilizes the length dimension of the conductor to provide mounting space for electronic components, rather than increasing width. By arranging terminals at one end and components at the other end along the length, the design accommodates components without expanding device width, maintaining a compact profile
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 design reduces the size of the current measuring device while increasing the mountability of electronic components, allowing for more efficient detection of current and improved resistance to shocks.
Implementation Method 1
a conductor adapted to pass current therethrough
Implementation Method 2
at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction
Data Source
AI summary
Provided is a current measuring device for measuring current, including a conductor adapted to pass current therethrough, at least a pair of voltage sensing terminals arranged apart from each other on the conductor in the current flowing direction, and a substrate to which the voltage sensing terminals are connected. The substrate is long in the current flowing direction, and connection portion of the substrate that are connected to the voltage sensing terminals are arranged closer to one end side of the substrate in the lengthwise direction.