Anti-Deformation Assembly for LED Lighting Fixture Thermal Stability
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Solution Overview
Problem
Street lamps' components, such as light-emitting units and drivers, generate heat, causing deformation of the light source panel and lens unit, which leads to unsatisfactory lighting effects due to changes in their relative positions.
Innovation Solution
A lighting fixture design incorporating an anti-deformation assembly with a connection rib and elastic clip or clamping member that applies an action force to the lens unit to secure it to the light source panel, maintaining a stable relative position relationship between components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the light source assembly and lens cover are mounted together to form a mounting space, then the lighting fixture can be assembled and function, but heat generated by components causes deformation of the light source panel and lens unit, leading to position changes and unsatisfactory lighting effects
Solution Approach 1:
The anti-deformation assembly is installed in advance within the mounting space to preemptively counteract the deformation force caused by heat. The elastic clip or clamping member applies a pre-compression force to the light source panel and lens unit, creating a preliminary counteracting force that balances the thermal expansion and deformation forces before they can cause position changes.
Solution Approach 2:
The patent utilizes the elastic properties of the anti-deformation assembly (clip or clamping member) to dynamically adjust the compression force applied to the light source panel and lens unit. As temperature changes occur during operation, the elastic material's modulus and dimensions change, automatically adjusting the counteracting force to maintain stable relative positioning despite thermal variations.
2Reliability
If an anti-deformation assembly is added to prevent deformation, then the stability and lighting quality improve, but the device complexity increases
Solution Approach 1:
The anti-deformation function is segmented from the main housing structure and implemented as a separate, modular assembly (comprising the elastic clip or clamping member and associated components). This segmented approach allows the anti-deformation mechanism to be independently designed, installed, and maintained without affecting the overall housing structure, thereby minimizing the increase in overall device complexity while achieving the desired stability.
Solution Approach 2:
The elastic anti-deformation assembly is designed to automatically adjust and maintain the required compression force without external control or intervention. The elastic material's inherent properties enable it to self-regulate the counteracting force based on temperature changes and deformation conditions, eliminating the need for complex control systems, sensors, or adjustable mechanisms, thus achieving high reliability with minimal added complexity.
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 anti-deformation assembly effectively limits deformation of the light source panel and lens unit, enhancing the stability and quality of the lighting fixture's performance by preventing position changes caused by heat, thus improving lighting effects.
Implementation Method 1
The anti-deformation assembly may be in the connection through-hole and may be connected to the lens unit to apply an action force to the lens unit using the elastic clip or the elastic clamping member
Data Source
AI summary
A lighting fixture is provided. The lighting fixture includes a housing, a light source assembly, a lens cover, and an anti-deformation assembly, the housing and the lens cover are connected and form a mounting space; the light source assembly is mounted in the mounting space and includes a light source panel, and a connection through-hole is provided in the light source panel; the lens cover includes a cover body and a lens unit on the cover body; and a part of the anti-deformation assembly is in the connection through-hole, and the anti-deformation assembly is connected to the lens unit to apply an action force to the lens unit to cause the lens unit to fit the light source panel.