Angled Cooling Ribs for Electronics Housing Convection
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Solution Overview
Problem
Centrifugal pumps with existing electronics housings face challenges in ensuring effective cooling across various mounting positions due to conventional cooling ribs that may obstruct air convection, limiting flexibility and efficiency in heat dissipation.
Innovation Solution
The design features a one-piece electronics housing with cooling ribs angled between 30° and 60° relative to the extension direction, utilizing thermally conductive materials for the base and side walls to maintain consistent cooling performance across different mounting orientations, ensuring convection and heat dissipation in all positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional cooling ribs running parallel to the electronics housing extension direction are used, then the housing structure is simple and easy to manufacture, but convection is not guaranteed in every mounting position, limiting adaptability
Solution Approach 1:
The cooling ribs are designed to run at an angle between 30° and 60° relative to the extension direction of the electronics housing, creating an asymmetric configuration that enables effective convection in multiple mounting positions (horizontal and vertical orientations). This angular orientation allows air flow to pass through the cooling channels regardless of the housing's installation angle, resolving the contradiction between mounting flexibility and structural simplicity.
2Temperature
If cooling ribs extend circumferentially by 180° as in prior art, then cooling coverage is improved, but the housing cannot be arranged at any desired point on the electric motor, reducing adaptability
Solution Approach 1:
The angled cooling rib design creates a universal cooling solution that functions effectively in all mounting positions (horizontal and vertical motor shafts, various housing orientations). The 30°-60° angle configuration ensures that convection channels remain open and functional regardless of how the housing is positioned on the electric motor, providing both adequate cooling coverage and maximum arrangement flexibility.
3Temperature
If radial housing with cooling fins is used for vertical motor shaft, then cooling is possible in that orientation, but the housing cannot be mounted on horizontal motor shaft positions, reducing versatility
Solution Approach 1:
The cooling rib system is designed with dynamic adaptability through its angular orientation (30°-60°), allowing it to function effectively in both vertical and horizontal motor shaft configurations. The angled design enables the cooling channels to maintain proper air flow paths regardless of the motor's orientation, making the housing suitable for various installation scenarios without requiring different cooling fin configurations.
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 allows for flexible mounting of the electronics housing on centrifugal pumps with both horizontal and vertical motor axes, ensuring effective air convection and heat dissipation regardless of orientation, enhancing the overall cooling performance and mechanical stability while minimizing material usage.
Implementation Method 1
at least the bottom consists of a thermally conductive material
Implementation Method 2
ensuring convection and heat dissipation in all positions
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a centrifugal pump with an electric motor driving it and an electronics housing (1) mounted on a motor housing (4) of the electric motor. The electronics housing (1) has a trough-shaped lower part (2) for receiving at least one heat-generating component, in particular power electronic components of a frequency converter, and an upper part (3) covering the lower part (2). The lower part (2) has a base (16) and side walls (15) extending from it towards the upper part (3), the base (16) being made of a thermally conductive material. On the rear side (5) of the lower part (2), facing away from the upper part (3), cooling fins (6) are integrally formed with the base (16) and extend at an angle (α, β) between 30° and 60° to a direction (20, 21) of the rear side (5).The electronic housing (1) can therefore be oriented both horizontally and vertically; convection always occurs through the spaces between the cooling fins. The same applies in the case of an artificial airflow from the side, which can also flow through the spaces between the cooling fins regardless of the orientation of the electronic housing.