Segmented Thermal Transfer Element for SSD PCB Heat Dissipation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Solid-state drives (SSDs) face challenges in thermal management due to increased density and compactness, leading to overheating issues, where heat from one PCB can adversely affect thermally sensitive components on adjacent PCBs, and existing thermal barriers may not efficiently dissipate heat to the drive housing.
Innovation Solution
A thermal path is established between inner PCB components and the drive housing using a partially thermally insulating air gap and thermal interface material, allowing for partial thermal communication while preventing direct thermal linking between PCBs, thereby improving heat dissipation and reducing thermal interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If thermal barriers are used to separate PCBs, then thermal interference between PCBs is reduced, but heat dissipation efficiency to the drive housing deteriorates
Solution Approach 1:
The thermal transfer element is segmented into multiple regions with different thermal conductivities: a first region in thermal communication with the first PCB, a second region in thermal communication with the second PCB, and a third region forming a thermal barrier between them. This segmentation allows simultaneous heat dissipation from both PCBs while preventing direct thermal coupling between them.
Solution Approach 2:
Different regions of the thermal transfer element have different thermal conductivities tailored to their specific functions: high thermal conductivity regions for efficient heat transfer from PCBs to the element, and low thermal conductivity regions for isolating the two PCBs thermally. This local differentiation resolves the contradiction between heat dissipation and thermal isolation.
2Volume of moving object
If PCBs are placed in close proximity to reduce drive size, then drive compactness is improved, but heat accumulation and thermal interference worsen
Solution Approach 1:
The thermal transfer element divides the thermal pathways from each PCB independently to the drive housing, preventing heat accumulation between PCBs while maintaining compact spacing. The thermal barrier region ensures that heat from one PCB does not directly transfer to the other PCB.
Solution Approach 2:
The thermal transfer element acts as an intermediary structure between the two PCBs and the drive housing, providing controlled thermal pathways that allow heat dissipation while preventing harmful thermal interference. The element mediates the thermal interaction between closely spaced PCBs.
3Reliability
If direct thermal linking between PCBs is prevented, then thermal sensitivity of components is protected, but overall heat dissipation capability deteriorates
Solution Approach 1:
The thermal transfer element provides separate thermal pathways for each PCB to the drive housing, preventing direct thermal linking between PCBs while maintaining independent heat dissipation capability for each. The segmented structure ensures both thermal isolation and heat dissipation.
Solution Approach 2:
The single thermal transfer element performs multiple functions simultaneously: it serves as a heat sink for the first PCB, a heat sink for the second PCB, and a thermal barrier between the two PCBs. This multi-functionality resolves the contradiction between thermal isolation and heat dissipation.
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 enhances thermal performance by efficiently transferring heat from hotter areas to the cooler exterior of the drive housing, reducing the impact of heat on thermally sensitive components and improving overall SSD performance and longevity.
Implementation Method 1
a partially thermally insulating air gap located between the first and the second PCB
Implementation Method 2
where a thermal interface material is disposed between the first thermal transfer element and the first PCB
Data Source
AI summary
An assembly includes a drive housing and a first printed circuit board (PCB) with at least one solid-state memory component, the first PCB having a first surface, where the first PCB is located within the drive housing. The assembly also includes a second PCB with at least one solid-state memory component, where the second PCB is operatively electronically coupled to the first PCB, the second PCB having a second surface, and where the second PCB is located within the drive housing. The assembly also includes a first thermal transfer element configured for partial thermal communication between the first PCB and the second PCB through the first and second surfaces, where the first thermal transfer element is shaped to include a partially thermally insulating air gap located between the first and the second PCB, and where the first thermal transfer element is in thermal communication with the drive housing.