Backup Power Box Self-Locking Circuit for Upgrade Power Continuity
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Solution Overview
Problem
Backup power boxes fail to reliably supply power to loads during upgrades, leading to potential power outages and unreliable operation.
Innovation Solution
A backup power box design incorporating a self-locking circuit that maintains relay switches in an on-state during upgrades, ensuring continuous power supply through a multiphase wire network using a controller to control switching transistors and relays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the backup power box is upgraded, then the device functionality is improved, but the power supply to the load is interrupted
Solution Approach 1:
The system performs preliminary actions by establishing a bypass connection before the upgrade process begins. The switch circuit is pre-configured with alternative power transmission paths, and the controller is programmed to activate these paths when upgrade mode is detected, ensuring power continuity before any disruptive actions occur.
Solution Approach 2:
The patent introduces a bypass circuit as an intermediary element that mediates between the main power transmission path and the load. This bypass circuit includes switch elements and control logic that allow power to flow through alternative routes during upgrades, effectively decoupling the upgrade process from the power supply function.
2Ease of operation
If the relay switch is controlled by the controller, then the power transmission is controllable, but the power supply becomes unreliable when the controller fails
Solution Approach 1:
The switch circuit is designed with self-service capabilities where the bypass path can be automatically activated by detection circuits that monitor controller status. When controller failure is detected, the system self-corrects by routing power through the bypass circuit without requiring external intervention or complex control logic, ensuring continuous operation.
Solution Approach 2:
The system incorporates beforehand cushioning by maintaining the bypass circuit in a ready-state configuration with pre-charged capacitors and pre-positioned switch elements. This allows the system to quickly transition to the bypass mode upon controller failure, cushioning against the impact of control system malfunction on power supply 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
Ensures continuous power supply to loads during backup power box upgrades, preventing power outages and ensuring reliable operation by maintaining relay switches in an on-state through a self-locking circuit.
Implementation Method 1
A current passes through the coil, which generates electromagnetic effect. An armature overcomes anti-spring pulling force and is attracted to an iron core under attraction of electromagnetic force
Implementation Method 2
The self-locking circuit is configured to: when the first switching transistor is in the turn-on state and the controller is incapable of controlling the self-locking circuit to output the control signal, continuously output the control signal to maintain the first switching transistor in the turn-on state
Implementation Method 3
An armature overcomes anti-spring pulling force and is attracted to an iron core under attraction of electromagnetic force, to drive a movable contact and a static contact of the armature to attract to each other
Data Source
AI summary
Example backup power boxes and control methods for the backup power boxes are described. In one example method, a backup power box includes a plurality of backup power ports, a multiphase wire, a plurality of relays, a first switch circuit, and a controller. The controller controls the self-locking circuit to output a control signal that controls the first switching transistor to switch to a turn-on state. When the first switching transistor is in the turn-on state and the controller is incapable of controlling the self-locking circuit to output the control signal, the self-locking circuit continuously outputs the control signal to maintain the first switching transistor in the turn-on state.