Rotating Heat Sink with Nested Fins for Compact Inverter Cooling
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Solution Overview
Problem
Existing cooling devices face challenges in reducing size, achieving uniform cooling of multiple components, and facilitating easy assembly due to the arrangement of radiating fins outside the heat sink, which increases device size and complicates the assembly process.
Innovation Solution
A cooling device configuration featuring a first and second cooler body with pin-like blades arranged inside, allowing for rotation and assembly in a stereoscopic configuration, enabling centralized radiator units for improved cooling performance and simplified assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If radiating fins are arranged outside the heat sink, then the heat sink can be assembled, but the device size increases and uniform cooling becomes difficult
Solution Approach 1:
The radiating fins are arranged inside the heat sink structure, with fins from different heat sinks nested within each other's spatial envelope. This nesting approach allows multiple radiating surfaces to coexist in a compact configuration, reducing the overall device volume while maintaining adequate spacing for cooling airflow.
Solution Approach 2:
The patent transitions from a two-dimensional planar arrangement of radiating fins to a three-dimensional stereoscopic configuration. By arranging fins in multiple layers and orientations within the heat sink body, the design achieves compact volume while preserving cooling effectiveness through vertical and depth-based spatial utilization.
2Volume of moving object
If radiating fins are arranged inside the heat sink, then device size is reduced, but extremely short fin length is required to prevent interference
Solution Approach 1:
The heat sink assembly incorporates rotational mechanisms that allow the stereoscopic structure to transition between a flat configuration during assembly and a three-dimensional operational configuration during cooling. This dynamic transformation enables long fin lengths to be achieved without interference, as the fins are positioned in different spatial planes when rotated into place.
Solution Approach 2:
The heat sink is divided into multiple separable cooler bodies that can be assembled independently and then coupled together. Each cooler body contains a portion of the radiating fins, and the segmented design allows for optimized fin length and spacing within each module while maintaining compact overall dimensions when assembled.
3Adaptability or versatility
If heat sinks are coupled at 90° or 180° by fitting, then stereoscopic arrangement is achieved, but coupling must be released to transition between configurations
Solution Approach 1:
The coupling mechanism incorporates rotational freedom that allows the heat sink modules to be assembled in a convenient flat configuration and then dynamically rotated into the final stereoscopic operational configuration. This dynamic capability eliminates the need to release and reassemble couplings, as the same coupling structure supports both assembly and operational configurations.
Solution Approach 2:
The coupling structure is designed to serve multiple functions: it provides mechanical connection between heat sink modules, enables rotational movement for configuration transition, and maintains structural integrity in both flat and stereoscopic arrangements. This multi-functional coupling eliminates the need for separate assembly and operational configurations.
4Reliability
If multiple coolers are provided to cool large number of components, then cooling coverage is improved, but device size and cost increase
Solution Approach 1:
Multiple cooler bodies are merged into a single integrated heat sink assembly where the radiating fins of different coolers are arranged in a nested, three-dimensional configuration. This merging allows multiple cooling zones to share a common structural envelope, reducing the overall device volume while maintaining adequate cooling coverage for multiple components.
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 reduces device size, enhances cooling performance by centralizing radiator units, and simplifies assembly by allowing components to be mounted in a flat configuration before transitioning to a stereoscopic setup, improving productivity and ease of maintenance.
Implementation Method 1
The first blades each have a pin-like shape and are coupled to the first base plate. The second blades each have a pin-like shape and are coupled to the second base plate.
Implementation Method 2
a cooler for forced air cooling, a cooling fan for generating an air current to contact the cooler for forced air cooling is used in combination
Data Source
AI summary
A cooling device to be provided is capable of being reduced in size, capable of cooling a heating component uniformly, having high radiating performance, and facilitating implementation of a work in a flat state. A first cooler body includes a first base plate and first blades. The first base plate has a first component mounting surface. A second cooler body includes a second base plate and second blades. The second base plate has a second component mounting surface. With the second cooler body maintained connected to the first cooler body, a rotary mechanism allows the second cooler body to rotate relative to the first cooler body between a state in which the first component mounting surface and the second component mounting surface are pointed to the same direction and a state in which the second blades get into gaps between the first blades without interfering with the first blades.