Gearbox Housing Cooling Structure With S-Shaped Guide Rib Flow
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Solution Overview
Problem
Conventional liquid cooling heat dissipation structures for gearbox casings have small heat dissipation areas and coolant blind areas, leading to low heat exchange rates, poor performance, and reduced service life of the gearbox system.
Innovation Solution
A liquid cooling heat dissipation structure with fixed and suspended guide ribs in the coolant tank to guide coolant flow, increasing contact area and preventing eddies, combined with a wavy bottom design and adjustable angles to enhance heat transfer efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If conventional liquid cooling heat dissipation structures are used, then the structure is simple, but the heat dissipation area is small and heat exchange rate is low
Solution Approach 1:
The coolant tank is divided into multiple sections by fixed guide ribs and suspended guide ribs, creating a segmented S-shaped flow path. This segmentation increases the heat dissipation area by dividing the cooling space into multiple zones that maximize contact between coolant and gearbox casing while maintaining a relatively simple overall structure.
Solution Approach 2:
Suspended guide ribs are positioned at different heights within the coolant tank, creating a three-dimensional flow path. This vertical dimensionality increases the heat dissipation area by utilizing the full volume of the coolant tank rather than just the surface area, while the modular rib structure keeps manufacturing complexity manageable.
2Productivity
If conventional heat dissipation structures are used, then the structure is simple, but heat exchange rate between gearbox casing and coolant is low
Solution Approach 1:
The guide ribs are designed with curved surfaces that guide coolant flow in smooth arcs rather than sharp angles. This curvature prevents flow separation and eddies, maintaining high velocity and turbulence for improved heat exchange rates, while the continuous curved paths are easier to manufacture than complex angular transitions.
Solution Approach 2:
The amplitude of the wavy shape at the bottom part of the coolant tank is reduced step by step from the liquid inlet to the liquid outlet. This gradual parameter change optimizes heat exchange by maintaining high turbulence near the inlet where cooling is most needed, while reducing complexity near the outlet where flow velocity naturally decreases.
3Reliability
If conventional coolant channels are used, then the channel structure is simple, but coolant blind areas and eddies occur
Solution Approach 1:
Multiple fixed guide ribs and suspended guide ribs divide the coolant tank into several flow channels, eliminating blind areas by ensuring every region of the gearbox casing is accessible to coolant flow. The segmented rib structure achieves this comprehensive coverage while remaining relatively simple to manufacture.
Solution Approach 2:
The S-shaped continuous flow path created by the guide ribs ensures uninterrupted coolant circulation throughout the entire gearbox casing. This continuous action prevents dead zones and eddies by maintaining constant fluid motion across all heat dissipation surfaces, while the continuous rib structure is simpler than multiple discrete components.
4Productivity
If high heat exchange rate is achieved through increased heat dissipation area, then heat dissipation performance improves, but manufacturing cost increases
Solution Approach 1:
The guide ribs create a porous-like flow distribution network within the coolant tank, where multiple thin rib structures divide and redirect coolant flow throughout the tank volume. This approach achieves high heat dissipation performance through distributed flow paths rather than requiring a single large complex structure, reducing manufacturing cost while maintaining effectiveness.
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 structure achieves high heat exchange efficiency and prevents coolant eddies, enhancing gearbox performance and service life while maintaining low costs.
Implementation Method 1
by providing suspended guide ribs and fixed guide ribs that guide the flow direction of the circulating coolant
Implementation Method 2
The liquid cooling heat dissipation structure has high heat exchange efficiency
Data Source
AI summary
A liquid cooling heat dissipation structure and a gearbox casing that includes heat dissipation structure are disclosed. The heat dissipation structure includes a coolant tank and a cover plate that is used to seal the coolant tank. Two ends of the coolant tank are respectively provided with a liquid inlet and a liquid outlet. The coolant tank is provided therein with a plurality of fixed guide ribs that are arranged alternately and at intervals to form a continuous S-shaped or maze shaped channel for the coolant to flow through. The suspended guide ribs are further provided between the fixed guide ribs or between a fixed guide rib and an inner wall of the coolant tank.