Rotatable Electrode Plate for Cable Withstand Voltage Testing
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Solution Overview
Problem
The existing device for checking the withstand voltage of connector-coupled cables does not provide reliable test results, as it fails to ensure that the test conditions are met, leading to potential misclassification of cables as pass or fail. Additionally, the device requires the use of one foot and both hands, causing worker fatigue and increasing the likelihood of errors.
Innovation Solution
A device comprising a pair of electrode boxes with rotatable conductive electrode plates and a control block that applies a start signal to a test instrument, ensuring that the test is conducted only when the electrical state between the electrode plates is correctly detected, allowing the test to be performed using both hands and reducing worker fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the existing test device is used, then the test can be performed, but the test results are unreliable and worker fatigue increases
Solution Approach 1:
The electrode plate automatically detects whether the cable conductor is properly inserted through its rotatable structure and electrical contact mechanism, eliminating the need for manual verification by the worker. The system self-activates the test when proper contact is detected, reducing worker fatigue and improving reliability.
Solution Approach 2:
The manual mechanical operation of verifying cable insertion and activating the test is replaced by an electrical detection system. The electrode plate uses electrical contact and rotation detection to automatically determine test readiness, substituting manual mechanical verification with an automated sensing mechanism.
2Measurement precision
If manual verification of test conditions is required, then test accuracy may be ensured, but worker fatigue increases and errors become more likely
Solution Approach 1:
The electrode plate provides automatic feedback by detecting the electrical contact state and rotational position to determine whether the cable is properly inserted. This feedback mechanism ensures test condition verification accuracy without requiring manual checking, as the system automatically senses and responds to the cable insertion state.
Solution Approach 2:
The electrode plate acts as an intermediary between the cable insertion action and the test activation. It mediates the verification process by detecting contact through its rotatable structure and electrical connections, translating physical insertion into an automated test activation signal without requiring direct manual verification.
3Reliability
If the electrode plate structure is made complex to ensure reliable detection, then test condition detection improves, but device complexity increases
Solution Approach 1:
The electrode plate uses a simple rotatable dynamic structure that changes position based on cable insertion. This dynamic element provides reliable detection through its movement and electrical contact state without requiring complex mechanisms, as the rotation itself serves as the detection principle.
Solution Approach 2:
The detection mechanism relies on changes in electrical parameters (contact resistance, conductivity) and mechanical parameters (rotation angle, position) of the electrode plate. These parameter changes provide reliable detection information without requiring complex structural modifications, as the plate's simple rotation and contact state suffice for accurate detection.
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 device ensures that the withstand voltage test is completed under the correct test conditions, improving the reliability of the test results and reducing worker fatigue, thereby enhancing the quality and efficiency of the testing process.
Implementation Method 1
a detection unit, mounted inside the housing with a predetermined gap from the electrode plate, configured to detect a state in which the electrode plate is rotated while a lower part of the electrode plate is pushed inward. The electrical state is an electrical state between both terminals of the detection unit
Data Source
AI summary
A withstand voltage of a connector-coupled cable is checked by the device equipped with a pair of electrode boxes, and a control block configured to apply a start signal to a test instrument, which outputs a preset high voltage, according to an electrical state detected in each electrode box in which a housing whose a part of a front side is open; a conductive electrode plate mounted on an inner front side of the housing in such a way that it is rotatable around its top end, and a switch unit, mounted inside the housing with a predetermined gap from the electrode plate, to detect whether the electrode plate is rotated due to push on a lower part of the electrode plate are installed, wherein the electrical state is an electrical state between both terminals of the detection unit, and the preset high voltage is applied between both electrode plates.