Sandwich Radiator Heat Dissipating Module for Projection Devices
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Solution Overview
Problem
Current water-cooling heat dissipation systems for solid-state light source projection systems face challenges with high thermal resistance and poor space utilization, leading to increased system volume and noise due to the need for multiple fans and larger radiators to maintain heat source temperature.
Innovation Solution
A heat dissipating module with a sandwich structure comprising a first radiator, a second radiator, and at least one fan, where the second radiator is opposite to the first radiator, and a working fluid flows through both for cyclic heat dissipation, reducing thermal resistance and increasing heat dissipation efficiency without increasing the number of fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If water-cooling heat dissipation system is used, then heat exchange efficiency is improved, but system volume increases
Solution Approach 1:
The patent embeds the water-cooling heat dissipation components (pump, radiator, cold plate, pipes) within the projection device housing itself, creating a nested structure where the cooling system is integrated into the existing device volume rather than occupying separate space. This resolves the contradiction by maintaining efficient water-cooling heat exchange while preventing system volume expansion.
2Temperature
If number of fans is increased to maintain heat source temperature, then heat dissipation capability is improved, but system noise increases
Solution Approach 1:
The patent replaces the traditional fan-based air cooling system with a water-cooling hydraulic system that uses a pump to circulate coolant through radiators and cold plates. This hydraulic approach provides superior heat dissipation capability while operating quietly, resolving the contradiction between temperature control and noise reduction.
3Temperature
If radiator volume is increased to maintain heat source temperature, then heat dissipation capability is improved, but space utilization deteriorates
Solution Approach 1:
The patent divides the heat dissipation function into multiple segments: a pump for fluid circulation, separate radiators for heat exchange, and a cold plate for direct heat source contact. This segmentation allows each component to be compact and efficiently positioned within the device, maintaining effective heat dissipation while optimizing space utilization.
Solution Approach 2:
The patent integrates the radiator and pump structures within the projection device housing, creating a nested arrangement where cooling components are embedded in available spaces rather than occupying additional external volume. This maintains heat dissipation effectiveness while preserving space utilization.
4Device complexity
If air cooling is used, then system simplicity is maintained, but thermal resistance increases
Solution Approach 1:
The patent transitions from air cooling to water-cooling by introducing a hydraulic system with a pump and circulating coolant through radiators and cold plates. Water's superior heat capacity and thermal conductivity provide lower thermal resistance and more efficient heat dissipation, resolving the contradiction between simplicity and thermal resistance.
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 solution enhances heat dissipation efficiency and reduces system noise by increasing the heat dissipation area and decreasing fan rotating speed, while maintaining effective heat exchange and space utilization.
Implementation Method 1
the working fluid flows through the first radiator after flowing through the second radiator for heat exchange, and the working fluid flowing into the first radiator flows to the heating element for cyclic heat dissipation after heat exchange again through the first radiator
Implementation Method 2
the heating element, the first radiator, and the second radiator are connected to each other through the pipe to form a loop
Implementation Method 3
The fan is configured between the first radiator and the second radiator
Data Source
AI summary
The invention provides a heat dissipating module configured to dissipate heat of at least one heating element of a projection device. The heat dissipating module includes a first radiator, a second radiator, a pipe, and at least one fan. The second radiator is disposed opposite to the first radiator. The heating element, the first radiator, and the second radiator are connected to each other through the pipe to form a loop. A working fluid is configured to be filled in the pipe, and the working fluid flows through the first radiator after flowing through the second radiator for heat exchange, and the working fluid flowing into the first radiator flows to the heating element for cyclic heat dissipation after heat exchange again through the first radiator. The fan is configured between the first radiator and the second radiator.