Variable Temperature Heat Exchange Switch for Thermal Management
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Solution Overview
Problem
Electronic devices, especially those without cooling fans or with irregular battery configurations, face heat management challenges that affect performance and component robustness, as existing heat dissipation methods are inadequate.
Innovation Solution
A variable temperature heat exchange system comprising a heat exchanger coupled with a heat pipe and a thermal-activated switch, which allows heat transfer from the heat exchanger to the heat pipe when a threshold temperature is reached, using bi-metallic, shape memory, or bi-metallic snap switches to facilitate efficient heat dissipation without the need for fans.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If heat dissipation methods are used in electronic devices without cooling fans or with irregular battery configurations, then heat management challenges affect performance and component robustness, but the device complexity increases
Solution Approach 1:
The heat dissipation system is segmented into multiple independent heat exchangers, each coupled to different electronic components or battery cells. This segmentation allows targeted heat management for irregular heat maps while maintaining overall system reliability without requiring a complex centralized cooling system.
Solution Approach 2:
The thermal-activated switch enables self-regulating heat dissipation by automatically activating heat transfer to the heat pipe when threshold temperatures are reached, eliminating the need for external control systems, fans, or complex thermal management electronics.
2Productivity
If thermal-activated switches are used to control heat transfer between heat exchanger and heat pipe, then heat dissipation efficiency improves, but the device complexity increases
Solution Approach 1:
The thermal-activated switch is a passive component that automatically responds to temperature changes without requiring external control systems, sensors, or power sources. This self-activating mechanism improves heat dissipation efficiency while adding minimal complexity to the overall system.
Solution Approach 2:
The thermal-activated switch utilizes thermal expansion or phase change materials that physically expand or change state at threshold temperatures, mechanically opening or closing the thermal pathway between the heat exchanger and heat pipe without requiring electronic control.
3Reliability
If heat transfer is activated at threshold temperatures, then hot spots are minimized and performance is maintained, but energy loss increases due to thermal activation requirements
Solution Approach 1:
The thermal-activated switch converts the potentially harmful threshold temperature (which could cause performance degradation) into a beneficial trigger for heat dissipation activation. When hot spots approach threshold levels, the switch automatically activates to transfer heat to the heat pipe, preventing performance loss while managing the energy trade-off.
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 solution effectively manages heat dissipation by ensuring consistent heat transfer and minimizing hot spots, improving device performance and longevity by dissipating heat from electronic components without the use of fans, even in devices with irregular heat maps.
Implementation Method 1
The thermal-activated switch may be configured to allow heat transfer from the heat exchanger to the heat pipe in response to a temperature satisfying a threshold temperature
Implementation Method 2
using bi-metallic, shape memory, or bi-metallic snap switches to facilitate efficient heat dissipation
Implementation Method 3
using bi-metallic, shape memory, or bi-metallic snap switches to facilitate efficient heat dissipation
Implementation Method 4
a heat pipe connected to the heat exchanger and configured to dissipate heat
Implementation Method 5
a heat pipe connected to the heat exchanger and configured to dissipate heat
Implementation Method 6
a heat exchanger coupled to an electronic component to dissipate heat from the electronic component
Implementation Method 7
a heat exchanger coupled to an electronic component to dissipate heat from the electronic component
Data Source
AI summary
Apparatuses, systems, devices, and methods for variable temperature heat exchange switch are disclosed. An apparatus includes a heat exchanger coupled to an electronic component to dissipate heat from the electronic component. The apparatus includes a heat pipe connected to the heat exchanger and configured to dissipate heat. An apparatus includes a thermal-activated switch located at the connection between the heat exchanger and the heat pipe. The thermal-activated switch may be configured to allow heat transfer from the heat exchanger to the heat pipe in response to a temperature satisfying a threshold temperature.