Projector Light Source Module Segmented Heat Dissipation

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Solution Overview

Problem

In projector design, the miniaturization trend limits configuration space, making it challenging to achieve effective heat dissipation for light-emitting diode light sources with different heat generation requirements while maintaining structural strength.

Innovation Solution

A heat dissipation structure is implemented in a projector with separated heat dissipation structures for each color light-emitting unit, creating an accommodation space to prevent heat conduction and allow for additional heat dissipation within a limited space, including a base with side surfaces for each unit and heat dissipation structures that define a space for another unit's dissipation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the projector is miniaturized to reduce size, then the configuration space is reduced, but the heat dissipation efficiency of light-emitting diode light sources deteriorates

Engineering Contradiction:
Improveprojector sizeVSAvoidheat dissipation efficiency
Core Design Contradiction:
Volume of moving objectVSTemperature

Solution Approach 1:

The heat dissipation structure is divided into multiple independent heat dissipation components, each corresponding to different light-emitting diode chips (red, green, blue). Each heat dissipation component has its own heat dissipation channel, allowing separate heat dissipation paths for each color light source, thereby improving heat dissipation efficiency in a compact space.

Inventive Principle:
Principle #1Segmentation

2Temperature

If heat dissipation structures are separated for each light-emitting unit, then heat dissipation efficiency is improved, but the device complexity increases

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoidstructure complexity
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

Multiple heat dissipation components are integrated into a unified heat dissipation structure that forms an accommodation space together. This structure combines the functions of multiple heat dissipation paths while maintaining a compact overall design, reducing device complexity compared to completely separate heat dissipation systems.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The heat dissipation components are arranged to form nested or interlocking structures that create accommodation spaces. This nesting approach allows multiple heat dissipation functions to coexist in a compact configuration, improving heat dissipation efficiency without proportionally increasing device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Temperature

If heat dissipation structures are separated, then cross-heat conduction is prevented, but the structural strength may be reduced

Engineering Contradiction:
Improveheat isolationVSAvoidstructural strength
Core Design Contradiction:
TemperatureVSStrength

Solution Approach 1:

The separated heat dissipation components are merged into an integrated heat dissipation structure that maintains structural continuity. This integration preserves structural strength while keeping the heat dissipation paths separate to prevent cross-heat conduction between different light-emitting units.

Inventive Principle:
Principle #5Merging (Combining)

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

This configuration ensures efficient heat dissipation for each light-emitting unit, preventing cross-heat interference and allowing for the accommodation of another heat dissipation structure within the limited space, enhancing the structural strength and efficiency of heat management.

Implementation Method 1

The first heat dissipation structure and the second heat dissipation structure are separated from each other and define an accommodation space together

Methodology Applied
Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS11640105B2Projector and light source module thereof
Publication Date: 2023.05.02 CORETRONIC CORPORATION
  • US11640105B2 patent drawing
  • US11640105B2 patent drawing
  • US11640105B2 patent drawing

AI summary

A projector includes a light source module, a light valve, and a projection lens. The light source module is adapted to provide an illumination light beam and includes a base having first and second side surfaces, first and second color light-emitting units respectively disposed on the first and second side surfaces, and first and second heat dissipation structures respectively connected to the first and second color light-emitting units. The first and second heat dissipation structures are separated from each other and define an accommodation space together. The light valve is located on a transmission path of the illumination light beam and adapted to convert the illumination light beam into an image light beam. The projection lens is located on a transmission path of the image light beam and adapted to project the image light beam.