Elastic Cooling Guide Assembly for Low-Pressure Motor Oil Cooling
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Solution Overview
Problem
Conventional cooling guide plates in oil-cooled motors are made of inflexible materials, leading to assembly difficulties, inefficient cooling due to localized oil distribution, and increased material waste, with the plates being assembled using bolts, which enlarges the cooling guide and reduces efficiency.
Innovation Solution
A cooling guide formed from an elastic material that is directly assembled to the housing, featuring an attachment portion and a partition wall portion with inclined surfaces, allowing efficient oil flow and distribution to the stator and coil, even with minimal pressure, and reducing manufacturing costs by altering the housing's surface shape to mimic the guide's function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a conventional cooling guide plate is made of inflexible material, then it provides structural stability, but it causes assembly difficulties and interference with housing accessories
Solution Approach 1:
The cooling guide plate is made of elastic material that can be elastically deformed during assembly to pass through narrow spaces and avoid interfering with housing accessories, then returns to its original shape to provide structural stability during operation
Solution Approach 2:
The cooling guide plate transitions from a static rigid structure to a dynamic flexible structure that can adapt its shape during assembly and operation, allowing it to be inserted without disassembling housing accessories while maintaining functional stability
2Ease of operation
If the cooling guide plate is installed only at the upper portion of the housing, then assembly is simplified, but cooling oil is not sprayed toward the coil and cooling efficiency decreases
Solution Approach 1:
The cooling guide structure is divided into multiple sections along the oil flow path, with each section containing a cooling guide plate that directs oil to specific areas, ensuring comprehensive cooling coverage while maintaining assembly simplicity
Solution Approach 2:
The cooling guide plate extends in the axial direction of the motor, creating a three-dimensional cooling structure that effectively directs cooling oil from the upper housing portion down to the coil areas, achieving both assembly simplicity and cooling effectiveness
3Ease of manufacture
If the cooling guide plate is formed flat without curves, then manufacturing is simpler, but oil is not widely distributed and only sprays to local locations
Solution Approach 1:
The cooling guide plate incorporates curved surfaces and inclined angles that redirect cooling oil in multiple directions, causing the oil to collide with the stator and spray widely across the coil surfaces, significantly improving cooling efficiency
4Strength
If the cooling guide plate is assembled onto the front cover with a bolt, then it provides secure attachment, but it increases the size of the cooling guide and wastes material
Solution Approach 1:
The cooling guide plate is integrated directly with the housing as a unified structure, eliminating the need for separate bolts and additional components, thereby reducing material usage and simplifying the overall design while maintaining secure attachment
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 enables efficient cooling of the stator and coil with a larger oil flow, reduces assembly interference, and minimizes material waste by using an elastic guide that can be tightly attached, while also allowing cost-effective manufacturing by omitting the need for additional components.
Implementation Method 1
formed from an elastic material that is directly assembled to an inner diameter of a housing
Implementation Method 2
bring the cooling oil flowing between the housing and a stator into a collision therewith to guide a spray direction of the cooling oil toward a coil
Data Source
AI summary
The present invention relates to a cooling guide for optimally conveying cooling oil. The cooling guide of the present invention is advantageous in that: the cooling oil can be allowed to move along a flow path from an outlet, by forming the cooling guide from an elastic material that is directly assembled to an inner diameter of a housing, so that the cooling guide can be tightly attached to the housing by a cooling guide assembling guide; a stator can be efficiently cooled even with a small amount of pressure, by positioning the flow path close to the oil outlet; a larger amount of cooling oil can be conveyed to the stator and a coil, by including an inclined surface; and a contact position between the oil and the stator can be more easily changed, by adjusting an inclined angle.