Energy Meter Dual Connection Conductive Bar
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Solution Overview
Problem
Existing energy meters require a choice between through-cable and non-through-cable connections, leading to a doubling of references for manufacturers and installers, and modifications necessitate changing the meter, which reduces available space and limits cable cross-sections.
Innovation Solution
A modular measuring device with input and output terminals, including a clamping mechanism and a conductive element that allows for both through-cable and non-through-cable connections, featuring a conductive bar with curved ends for precise positioning and a voltage measurement screw that pierces the cable insulation, enabling flexible assembly and high-current connectivity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conductive rod connects the terminals and crosses right through the measuring device to accept both through-cable and non-through-cable connections, then the device accepts both connection types, but the residual space available at the connection terminals is reduced
Solution Approach 1:
The patent employs a removable conductive rod that can be inserted or removed based on the connection type required. This dynamic configuration allows the device to adapt between through-cable and non-through-cable modes without permanently occupying terminal space, resolving the contradiction between versatility and terminal space availability
Solution Approach 2:
The conductive rod acts as an intermediary element that enables non-through-cable connections by bridging the terminals when needed, while not interfering with through-cable connections when removed. This intermediary approach allows both connection types to be supported without permanent structural compromise
2Volume of stationary object
If the cross-section of cables in through-mounting is limited for the same range of meters, then the device structure remains compact, but cable selection flexibility is reduced
Solution Approach 1:
The removable conductive rod enables the device to dynamically adjust its configuration for different cable types and sizes. When the rod is removed, larger cables can be accommodated in through-mounting mode; when inserted, smaller cables are supported in non-through mode, thus expanding cable size range without permanently increasing device volume
3Adaptability or versatility
If the meter has to be disconnected and then reconnected, it must possibly be changed in view of the modification of the connection, then connection flexibility is achieved, but installation time and complexity increase
Solution Approach 1:
The removable conductive rod allows installers to switch between connection types by simply inserting or removing the rod, eliminating the need to change the entire meter device. This dynamic adjustment significantly reduces installation time and complexity while maintaining connection flexibility
Solution Approach 2:
The conductive rod is designed to be pre-configured and easily attachable/detachable, allowing installers to prepare the appropriate connection configuration in advance and quickly switch between modes during installation without complex reconfiguration procedures
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 solution allows for the same device to accept cables of the same section with or without through connections, maintaining a wide range of cable sizes and ensuring stable, precise connections, reducing assembly risks and maintaining service continuity.
Implementation Method 1
the measurement means comprise an intensity measurement device, in particular a transformer toroid for each passage
Implementation Method 2
the voltage measuring device is a screw which can be tightened on the current conductor passage, and in particular is adapted to pierce the insulation of a cable located there
Data Source
Figure 1~2A
Figure 2B~2D
Figure 3
AI summary
The apparatus i.e. energy meter (1), has a current intensity detection core (12) and a set screw (34) to measure parameter of current circulating in a conductor passage formed by terminals. A conductor element (40) e.g. metal bar/strip, electrically connect the terminals, and has two end parts inserted in the terminals while assuring a connection passage for a cable. The element has an intermediate part blocking the conductor passage, and openings and maintaining fins integrated to the apparatus so that the element is in preset stable position when the element is positioned.