Contactor Terminal Layout With Asymmetric Regions for Clear Wiring
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Solution Overview
Problem
Existing electromagnetic switching devices, such as contactors, often position the electromagnet in the lower part, making it difficult to distinguish between command and auxiliary terminals, especially in low illumination conditions, leading to potential incorrect wiring.
Innovation Solution
The device is designed with four distinct regions: the first houses the electromagnet for fixation, the second contains power terminals, the third separates auxiliary and command terminals asymmetrically for clear identification, and the fourth is for accessory connections, with asymmetry and uneven terminal placement reducing incorrect wiring chances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the electromagnet is positioned in the lower part of the contactor, then the command terminals can be disposed in the same region for practical connection and cost reduction, but the distinction between command terminals and auxiliary terminals becomes difficult, especially in low illumination conditions
Solution Approach 1:
The contactor is divided into distinct connection regions: a first connection region for command terminals and a second connection region for auxiliary terminals. This spatial segmentation allows terminals to be clearly distinguished while maintaining practical connection access, resolving the contradiction between ease of manufacture and terminal identification.
Solution Approach 2:
Different regions of the contactor are assigned different functional qualities: the first connection region is optimized for command terminals with associated connection means, while the second connection region is optimized for auxiliary terminals. This local differentiation improves terminal identification without compromising connection convenience.
2Ease of manufacture
If command terminals and auxiliary terminals are disposed uniformly spaced and distributed along the frame, then assembly is facilitated, but the terminals become difficult to distinguish from one another
Solution Approach 1:
The uniform distribution of terminals is replaced by segmentation into two distinct connection regions. Command terminals are grouped in the first connection region while auxiliary terminals are grouped in the second connection region, making terminal distinction clear while maintaining systematic assembly procedures.
Solution Approach 2:
The symmetric uniform spacing of terminals is replaced by an asymmetric arrangement where command terminals and auxiliary terminals are positioned in different spatial regions with different characteristics. This asymmetry provides clear visual and physical distinction between terminal types while allowing for standardized assembly processes.
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 clear distinction between terminals via asymmetry and uneven placement enhances user visibility and reduces incorrect wiring, facilitating easier installation and maintenance, especially under low illumination.
Implementation Method 1
an electromagnet composed by a coil and two armatures being one fixed and the other moveable
Data Source
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AI summary
An electromagnetic switching device, with several distinct regions (10, 20, 30, 40), where each region separates and places the terminals and the connection means in an improved form which make easy the identification of the terminals for the user when the contactor is fixed inside the panel; where the first region (10), have function of fixing the contactor on the panel and also houses the electromagnet; a second region (20) comprising the power terminals (21 ); a third region (30) that houses the auxiliary terminals (31, 32) and the command terminals (33); a fourth region (40)»that is used for the connection of accessories; the third region presents a clear distinction between auxiliary terminals (31, 32) and command terminals (33), given by the asymmetry created viewed from the top; combined with a proposed uneven disposition X1 and X2 of the command terminals (31, 32) and auxiliary terminals (33) viewed from the front in the same third region.