Planar Transformer Mounting Plate for Two-Card Thermal Conduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In two-card electronic assemblies, there is no effective method to dissipate heat from the center, as electronic modules are sandwiched between printed wiring boards, limiting heat removal to only the sides in contact with the boards.
Innovation Solution
A conductive thermal management architecture is implemented using a transformer mounting plate interposed between stiffeners, which dissipates heat from the center of a planar transformer through thermally conductive materials and strategically designed openings, allowing for efficient heat transfer and removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If electronic modules are sandwiched between printed wiring boards in a two-card assembly, then the structural compactness and integration are improved, but the heat dissipation capability from the center of the assembly deteriorates
Solution Approach 1:
A thermally conductive mounting plate is introduced as an intermediary component between the planar transformer and the stiffeners. This mounting plate serves as a heat transfer mediator, conducting heat away from the center of the assembly where the transformer is located, thereby resolving the heat dissipation problem while maintaining the compact two-card structure
Solution Approach 2:
The patent introduces a new thermal management dimension by adding the mounting plate as a separate thermal conduction path. Instead of relying solely on the PWBs for heat dissipation, the mounting plate creates an additional thermal pathway that extends the heat dissipation capability into the previously problematic center region of the assembly
2Ease of manufacture
If heat is dissipated only from the sides of electronic modules in contact with PWBs, then the manufacturing simplicity is maintained, but the thermal management effectiveness deteriorates
Solution Approach 1:
The mounting plate serves multiple functions: it provides mechanical support for the planar transformer, enables thermal conduction from the transformer, and acts as a structural element within the two-card assembly. This multi-functionality improves thermal management without significantly complicating the manufacturing process
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 enables effective heat dissipation from the center of the two-card assembly, improving thermal management and preventing overheating issues by utilizing thermally conductive materials and strategically designed openings in the transformer mounting plate.
Implementation Method 1
A conductive thermal management architecture is implemented using a transformer mounting plate interposed between stiffeners, which dissipates heat from the center of a planar transformer through thermally conductive materials
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A two-card assembly includes: a first printed wiring board (110a); a second printed wiring board (110b); a first stiffener (220) secured to the first printed wiring board, the first stiffener interposed between the first printed wiring board and the second printed wiring board; a second stiffener (130) secured to the second printed wiring board, the second stiffener interposed between the first stiffener and second printed wiring board; a transformer mounting plate interposed between the first stiffener and the second stiffener; and a planar transformer secured to the transformer mounting plate. The transformer mounting plate dissipates heat from the planar transformer.