Downlight Assembly Overvoltage Disconnect for Fast Reuse
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Solution Overview
Problem
Conventional downlights lack a repeatable power-off protection structure, making it impossible to test and quickly reuse them after emergency power outages.
Innovation Solution
A downlight assembly with a protection member comprising a freeing member, limiting member, and power-off member that disconnects the wiring members when excessive voltage is detected, allowing for quick reconnection after power restoration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional downlights are used without a protection member, then the structure is simple and installation is easy, but the downlights cannot be quickly reused after power outages and lack repeatable power-off protection
Solution Approach 1:
The protection member is divided into distinct functional components: a freeing member with an electromagnet, a limiting member with a power-off member, and wiring members. This segmentation allows each component to perform its specific function independently while maintaining overall system reliability without excessive complexity.
Solution Approach 2:
The protection member is pre-installed within the downlight body before any power outage occurs. The electromagnet is pre-positioned to hold the power-off member in place, and the limiting member is pre-configured to guide the disconnection process. This preliminary setup enables immediate protection action when voltage exceeds thresholds, eliminating the need for complex post-outage configurations.
2Ease of operation
If a protection member with electromagnet and limiting member is added to enable quick reconnection after power outages, then reliability and reusability improve, but device complexity increases
Solution Approach 1:
The electromagnet automatically activates when voltage exceeds the threshold, causing the freeing member to release the limiting member and disconnect the power-off member. This self-service mechanism eliminates the need for manual intervention during power outages and enables automatic quick reconnection when power is restored, improving ease of operation without requiring complex external control systems.
Solution Approach 2:
The limiting member acts as an intermediary between the electromagnet and the power-off member. It provides a mechanical linkage that translates the electromagnetic force into physical disconnection action, simplifying the overall control structure while enabling reliable quick reconnection capability.
3Object-affected harmful factors
If the freeing member adsorbs the limiting member through electromagnet to disconnect wiring members during overvoltage, then power supply protection is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The protection member is pre-configured with the electromagnet, freeing member, and limiting member in specific positions before installation. This beforehand cushioning ensures that when overvoltage occurs, the protective action is immediately available without requiring complex real-time adjustments or additional manufacturing steps during operation.
Solution Approach 2:
The electromagnet's magnetic field strength is adjusted as a controllable parameter to match the specific overvoltage threshold requirements. By changing the electromagnetic parameter rather than redesigning the mechanical structure, the protection level can be tuned for different applications, simplifying manufacturing while maintaining effective overvoltage protection.
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
Provides repeated power outage protection and improves installation flexibility by enabling quick disconnection and reconnection of wiring members, enhancing safety and efficiency.
Implementation Method 1
the freeing member is configured to adsorb the limiting member when a voltage supplied by the power supply is too great
Data Source
AI summary
The present disclosure provides a downlight and a downlight assembly thereof, and the downlight assembly includes the downlight and a power supply electrically connected to the downlight, the downlight including a first wiring member, and the power supply including a second wiring member electrically connected to the first wiring member; the downlight assembly further includes a protection member connected to the first wiring member and including a freeing member arranged on a top portion of the first wiring member, a limiting member installed inside the first wiring member, and a power-off member installed inside the limiting member and configured to connect and disconnect the first and second wiring members, the freeing member configured to adsorb the limiting member when a voltage supplied by the power supply is too great, so as to quickly disconnect the first wiring member and the second wiring member through the power-off member.