Pivotable Flat LED Lamp with Ball Joint and Metal Heat Sink

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Solution Overview

Problem

Existing built-in lamps lack the ability to easily adjust the direction of light emission, limiting their versatility and functionality in various applications.

Innovation Solution

A flat built-in lamp design featuring a ring-shaped LED arrangement around a central axis, utilizing a ball joint for tilting and pivoting, allowing directional adjustment and efficient heat dissipation through a metal housing element.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a built-in lamp is designed with a fixed lighting unit, then the structure is simple and stable, but the direction of light emission cannot be adjusted

Engineering Contradiction:
Improveadjustability of light emission directionVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The lighting unit is made dynamically adjustable through a ball joint mechanism that allows the lighting unit to be tilted and rotated to different positions. The ball joint comprises a ball portion on the lighting unit that engages with a socket in the housing, enabling continuous adjustment of the light emission direction while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the lighting unit is made pivotable to adjust light direction, then versatility is improved, but the available space for pivoting is limited

Engineering Contradiction:
Improvelight direction adjustment rangeVSAvoidavailable space in housing
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

The ball joint mechanism enables the lighting unit to pivot in multiple dimensions - both tilting forward/backward and rotating left/right. This multi-dimensional movement capability allows extensive light direction adjustment within the limited space of a standard recessed lighting opening, maximizing the usable adjustment range without requiring additional installation space.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Illumination intensity

If LEDs are arranged in a ring-shaped configuration, then aesthetic appearance and light distribution are improved, but heat dissipation becomes more challenging

Engineering Contradiction:
Improvelight distribution uniformityVSAvoidheat dissipation efficiency
Core Design Contradiction:
Illumination intensityVSTemperature

Solution Approach 1:

A metal housing element is introduced as an intermediary heat dissipation component. This metal element is in direct thermal contact with the LED ring and extends outward from the housing opening, creating an extended heat dissipation path that efficiently conducts heat away from the LEDs while preserving the aesthetic ring-shaped light distribution pattern.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables easy directional control of light emission and effective heat management, enhancing the lamp's versatility and performance in installations such as furniture and outdoor applications.

Implementation Method 1

A flat built-in lamp design featuring a ring-shaped LED arrangement around a central axis, utilizing a ball joint for tilting and pivoting

Methodology Applied
Scientific EffectBall joint mechanism: Ball

Implementation Method 2

The lighting unit has at least one ring-shaped arrangement of a plurality of LED lighting means... the lighting unit having at least one ring-shaped arrangement of a plurality of LED lighting means

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP2442020B1Light with pivotable flat light unit
Publication Date: 2015.07.29 HALEMEIER GMBH & CO
  • EP2442020B1 patent drawingFigure 1~2

AI summary

The lamp has a flat housing (10), which has a housing opening (12) on a flat front side, and a flat luminous unit (20), which is held in the housing opening through a joint. The luminous unit is tilted relative to the housing opening in two directions. The luminous unit has multiple light emitting diode-illuminants, which are arranged around an axis running transverse to the flat luminous unit.