Electrical Cabinet Functional Module With Shared Protection Layout
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Solution Overview
Problem
The existing architecture of industrial electrical cabinets is costly due to the need for multiple protection units, each integrated with control-command units, and lacks modularity, making it difficult to adapt to varying installation needs.
Innovation Solution
A functional module is introduced that groups multiple control-command units and shares a common protection unit, allowing for a constant size that can be easily integrated into an electrical connection cabinet and adapted to specific installation needs by varying combinations of control-command units.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each control-command unit is equipped with its own integrated protection unit, then each control unit is reliably protected, but the overall cost increases significantly
Solution Approach 1:
The patent merges multiple protection units into a single shared protection unit that can protect multiple control-command units simultaneously. This is achieved by designing a protection unit with multiple output terminals that can be connected to different control units, allowing one protection unit to serve the function of multiple individual protection units, thereby reducing the total number of protection units required while maintaining protection reliability.
Solution Approach 2:
The protection unit is designed with multi-functionality to protect different types of control-command units (such as contactors, variable speed drives, and soft starters) through a single device. The universal design allows the same protection unit structure to be applied across various control unit types, reducing the need for specialized protection units for each control unit while ensuring adequate protection for each.
2Quantity of substance
If protection units are pooled in large groups, then the number of protection units is reduced, but the system loses modularity and adaptability
Solution Approach 1:
The patent segments the protection system into modular functional units that can be independently configured and combined. Each protection unit is designed as a discrete module with standardized interfaces, allowing the system to be divided into smaller functional segments that can be selectively assembled to match specific installation requirements, thereby maintaining adaptability while reducing the total number of protection units needed.
Solution Approach 2:
The protection unit design incorporates dynamic configurability through selectable connection configurations and adjustable protection parameters. The system allows dynamic reconfiguration of protection coverage based on installation needs, enabling the same protection unit to adapt to different control unit combinations and installation scenarios, thus maintaining versatility while using fewer protection units.
3Ease of manufacture
If a modular functional module is created with constant size, then integration into electrical cabinets is facilitated, but the internal configuration must be optimized to accommodate varying control unit combinations
Solution Approach 1:
The patent implements a nested modular structure where control-command units are housed within a standardized functional module housing. The functional module contains nested sub-components including the protection unit, control units, and connection terminals arranged in a hierarchical nested configuration. This nested design allows the functional module to maintain a constant external size for easy cabinet integration while accommodating varying internal configurations of control units through flexible internal arrangement.
Solution Approach 2:
The functional module design allows for parameter changes in the internal configuration while maintaining constant external dimensions. The module can accommodate different numbers and types of control units by adjusting internal parameters such as connection terminal positions, protection unit configuration settings, and wiring arrangements, enabling the same physical module size to support diverse internal configurations without compromising integration ease.
Data Source
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AI summary
A functional module (200) for an electrical connection cabinet includes one or more control units (138), a protection unit (140) common to all control units, supplying electrical power to all control units and electrically protecting all control units, a computer bus segment (204) connecting the control units to a communication module, as many external connection modules (208) and input/output modules (206) as there are control units, and a support structure.The height of the control units can be equal to 1U, 2U, 3U, 4U, 5U or 6U, "U" designating a unit height corresponding to a base height of a control unit, and the functional module has a main height (H4) equal to 6U and can accommodate any technically permissible combination of control units, depending on the height of these control units.