LED Lamp Heat Sink with Snap-Fit Transparent Element

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Solution Overview

Problem

Conventional LED lamps require cumbersome screw-based assembly and replacement of transparent elements, leading to low installation efficiency and high labor costs, as well as difficulties in adapting to different light distribution requirements.

Innovation Solution

An LED lamp design featuring a heat sink with a first and second receiving portion, a movable first and second moving member, and an elastic reset member, allowing for tool-free assembly and replacement of transparent elements by rotating the first moving member to open or close the insertion port.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If screws are used to fix the transparent element to the heat sink, then the connection is reliable and secure, but the assembly process becomes slow and inconvenient requiring screwdrivers and multiple steps

Engineering Contradiction:
Improveconnection reliabilityVSAvoidassembly speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent replaces the traditional screw-based mechanical fastening system with a snap-fit mechanism. The transparent element includes positioning protrusions that engage with corresponding positioning grooves on the heat sink, creating a tool-free snap-fit connection that eliminates the need for screwdrivers while maintaining secure attachment

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The positioning protrusions and grooves are designed to automatically align and engage the transparent element with the heat sink during installation. The elastic reset member provides self-latching functionality, allowing the element to be securely fixed without requiring external tools or complex assembly procedures

Inventive Principle:
Principle #25Self-service

2Strength

If multiple screws are used to secure the transparent element, then the fixation is strong and stable, but the disassembly and replacement process becomes complex and time-consuming

Engineering Contradiction:
Improvefixation strengthVSAvoiddisassembly convenience
Core Design Contradiction:
StrengthVSEase of operation

Solution Approach 1:

The patent replaces the multi-screw fastening system with a snap-fit mechanism using positioning protrusions and grooves. This allows the transparent element to be quickly released by simply pressing the elastic reset member, enabling tool-free disassembly and replacement while maintaining strong fixation during operation

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The elastic reset member provides dynamic latching and unlatching functionality. During normal operation, the element is securely held in place by the engaged positioning protrusions and grooves. For replacement, applying force to the elastic reset member releases the latch, allowing quick removal without complex disassembly steps

Inventive Principle:
Principle #15Dynamics

3Reliability

If conventional screw-based mounting is used, then the transparent element is firmly fixed, but adapting to different light distribution requirements becomes extremely inconvenient

Engineering Contradiction:
Improvemounting reliabilityVSAvoidtransparent element replacement flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The snap-fit mechanism with positioning protrusions and grooves provides a universal mounting interface that can accommodate different types of transparent elements (lens panels or flat glass panels). This allows easy adaptation to different light distribution requirements by simply replacing the transparent element without needing to disassemble screw connections

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The heat sink design with standardized positioning grooves and the elastic reset member creates a universal mounting system that can accept various types of transparent elements. This multi-functional interface enables the same mounting structure to serve different lighting applications by simply changing the transparent element

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Facilitates convenient manual assembly and replacement of transparent elements, improving installation efficiency and reducing labor costs while enabling easy adaptation to various light distribution needs.

Implementation Method 1

an elastic reset member arranged inside the first installation portion

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11976804B1LED lamp
Publication Date: 2024.05.07 SHENZHEN LIANYU PHOTOELECTRIC CO LTD
  • US11976804B1 patent drawing
  • US11976804B1 patent drawing
  • US11976804B1 patent drawing

AI summary

An LED lamp includes a heat sink including a first surface with a first receiving portion thereof, and at least one LED plate installed at a bottom portion of the first receiving portion; a second receiving portion arranged on a top portion of the first receiving portion to receive a transparent element therein that covers a light-emitting surface of the LED plate; an insertion port arranged on the second receiving portion and located on a first plane of a first end of the heat sink; a first moving member arranged on the first plane of the first end and corresponding to the insertion port, a second moving member arranged on a second plane of the first end and movably connected to the heat sink, both the first and second moving members movably connected to each other and moving relative to the heat sink to open or close the insertion port.