Self-Supporting Housing for Laminated Stator Cores
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Solution Overview
Problem
Dynamoelectric machines without a housing lack rigidity and are complex and expensive to manufacture, while those with a housing have increased size due to cooling limitations, requiring new structural designs for each cooling type and configuration change.
Innovation Solution
A self-supporting housing with a simple angular laminated core section and connection sections that allow for easy implementation of various cooling options, noise insulation, and terminal box placement without altering the machine's concept, using a single housing design for different configurations, including air and liquid cooling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a housing is added to provide rigidity, then structural stability is improved, but the machine size increases due to cooling limitations
Solution Approach 1:
The housing is designed as a universal structure that can accommodate multiple cooling configurations (air cooling with different airflow patterns, liquid cooling with various pipe arrangements) without requiring redesign. This multi-functionality allows the same housing to serve both structural support and diverse cooling requirements, preventing size increase while maintaining rigidity
Solution Approach 2:
The housing incorporates dynamic cooling solutions where airflow paths and cooling configurations can be adjusted or optimized for different operational conditions. This allows efficient heat dissipation within a compact volume, maintaining structural rigidity without unnecessarily increasing machine size
2Temperature
If cooling configurations are changed to improve heat dissipation, then thermal management is improved, but the structural design becomes complex and requires new machine concepts
Solution Approach 1:
The housing is designed as a universal platform that can accommodate multiple cooling configurations (air cooling with different airflow patterns, liquid cooling with various pipe arrangements) without requiring redesign. This multi-functionality allows the same basic structure to serve diverse thermal management needs, avoiding complexity while maintaining effective heat dissipation
3Object-affected harmful factors
If a housing is added to reduce noise emissions, then noise insulation is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The housing serves multiple functions simultaneously: structural support, cooling accommodation, and noise insulation. By integrating noise reduction features into the universal housing design rather than adding separate components, the solution achieves noise emission reduction without proportionally increasing manufacturing cost or complexity
Data Source
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Figure 7~8
AI summary
The invention relates to a self-supporting housing (1) of a laminated core (5) of a stator (22) in a dynamo-electric machine (23), said housing (1) having the following features: a laminated core section (2) surrounding the laminated core (5) which is formed by axially stacked sheets and includes at least one pressure plate (4) on its faces, the inside of the laminated core section (2) being designed such that a laminated core (5) having a basic shape of an octagonal cross-section can be accommodated in the laminated core section, wherein shorter sides (25) and longer sides (24) of the laminated core alternate in the peripheral direction; at least one connecting section (3) in the axial extension of the laminated core section (2) in order to dispose additional elements and/or devices on the housing (1); contact zones (7) on the inside of the laminated core section (2) in order to dispose and secure the laminated core (5) in such a way that a gap (6) is formed between the contact zones (7).