Electronic Protective Relay Single Operation Rod Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing electronic type protective relays have complex mechanical structures requiring multiple components and buttons for separate operations, making them difficult to assemble and fabricate, and unable to perform auto reset and stop functions simultaneously.
Innovation Solution
Integration of the mechanical structure into a single operation rod with a braking spring, magnetic-force device, and operation device, allowing for manual and auto reset, as well as stop functions without the need for complex electromagnetic loops or additional buttons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate stop button and reset button are used, then manual stop and manual reset functions are provided, but device complexity and assembly cost increase
Solution Approach 1:
The patent combines the stop button and reset button into a single integrated button structure. This single button can be pressed to achieve both stop and reset functions depending on the operational state, eliminating the need for separate mechanical components and reducing assembly complexity while maintaining full operational capability.
Solution Approach 2:
The integrated button is designed to perform multiple functions: it serves as both a stop button and a reset button. When the relay is tripped, pressing the button resets it; when the relay is normal, pressing the button stops the circuit. This multi-functional design reduces the number of components needed.
2Adaptability or versatility
If two separate buttons are used for stop and reset operations, then manual control functions are achieved, but the number of components and assembly time increase
Solution Approach 1:
The patent merges the stop and reset operations into a single button mechanism, reducing the number of components that need to be assembled. This integration directly improves assembly efficiency by reducing both the number of parts and the assembly steps required, while still providing both control functions.
3Reliability
If complex electromagnetic loop design is used for stop, manual reset and auto reset functions, then instantaneous function execution is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent extracts and eliminates the complex electromagnetic loop design from the traditional relay structure. By using a simplified mechanical button mechanism combined with spring-loaded contacts, it achieves instantaneous stop and reset functions without requiring complex electromagnetic pathways, making the device easier to manufacture while maintaining reliability.
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
Simplifies the assembly process, reduces component count, and enables simultaneous auto reset and stop functions, resulting in a more efficient and user-friendly electronic type protective relay.
Implementation Method 1
The magnetic-force device comprises a permanent magnet, a tripping electromagnet and a reset electromagnet
Implementation Method 2
a braking spring, a tripping rod elastically pivoted in the inner part of the insulating shell
Data Source
AI summary
An electronic type protective relay integrates the mechanical structure into a single operation rod to protect electric machinery. The electronic type protective relay includes an insulating shell, a tripping rod, a magnetic-force device and an operation device. The tripping rod is pivoted in the inner part of the insulating shell and conducts two pairs of connection pins. The tripping rod includes a control magnetic core. The magnetic-force device includes a tripping electromagnet, a reset electromagnet, and a permanent magnet installed between the tripping electromagnet and the reset electromagnet. The operation device includes an auxiliary rod located on one side of the tripping rod, an operation rod installed between the tripping rod and the auxiliary rod and protruding beyond the insulating shell. The operation rod can be located at four locations and in cooperation with the auxiliary rod to stop or reset.