Housing Cover Electrical Connection Integration for Sealing
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Solution Overview
Problem
Existing electrical machines, particularly in electric vehicles, face challenges in sealing and positioning electrical connections, which limits flexibility and efficiency due to the need for multiple seals and specific component arrangements, and does not effectively utilize available installation space.
Innovation Solution
A housing cover design with an outwardly pointing electrical connection that is separably connected to the housing, allowing for a single circumferential seal and flexible positioning of the connection bolt, enabling the same housing cover to accommodate different electrical component configurations without altering the housing or counter-connection, thus optimizing space usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electrical connection is integrated into the housing cover and separably connected to the housing, then the sealing is improved (only one circumferential seal needed), but the positioning flexibility of the connection bolt is worsened
Solution Approach 1:
The electrical connection is merged with the housing cover as an integrated unit, where the connection body is formed as one piece with the cover. This combination ensures that the electrical connection moves with the cover during sealing operations, maintaining reliable sealing while allowing flexible positioning through the integrated design.
Solution Approach 2:
The housing cover with integrated electrical connection serves multiple functions: it provides sealing protection, positions the electrical connection, and allows flexible mounting configurations. The universal design enables the same cover structure to accommodate different positioning requirements without compromising sealing integrity.
2Reliability
If the electrical connection is fixed in the housing cover, then the sealing is improved, but the adaptability to different electrical component configurations is worsened
Solution Approach 1:
The electrical connection's position is made dynamic relative to the housing by integrating it with the movable housing cover. This allows the connection to adapt to different configurations while maintaining sealing integrity, as the cover can be positioned to accommodate various electrical component arrangements within the housing.
Solution Approach 2:
The integrated design of the housing cover with electrical connection creates a universal component that can adapt to multiple electrical machine configurations. The same cover structure serves different positioning and sealing requirements without needing modification to the housing or counter-connection.
3Reliability
If multiple seals are used to seal the housing cover and electrical connection, then the sealing is improved, but the device complexity is worsened
Solution Approach 1:
By merging the electrical connection with the housing cover into a single integrated unit, the patent eliminates the need for separate sealing of the electrical connection. Only one circumferential seal between the housing cover and housing is required, reducing the total number of seals from multiple to one while maintaining comprehensive sealing protection.
Solution Approach 2:
The electrical connection is extracted from the housing structure and relocated to the housing cover. This extraction allows the sealing function to be simplified to a single circumferential seal at the cover-housing interface, removing the complexity of multiple seals while maintaining effective protection against dirt and moisture.
4Manufacturing precision
If the housing cover is designed with a specific opening for the connection bolt, then the positioning is improved, but the adaptability to different connection positions is worsened
Solution Approach 1:
The housing cover's position relative to the housing is made dynamic rather than fixed. This allows the opening for the connection bolt to be positioned at different locations depending on the specific application requirements, while maintaining precise positioning during operation. The cover can be mounted in different orientations to accommodate various connection positions.
Solution Approach 2:
The housing cover design serves as a universal component that can accommodate different connection positions through flexible mounting. The same cover structure with its integrated electrical connection can be positioned at different locations on the housing without requiring changes to the housing or counter-connection, providing both precision and adaptability.
Data Source
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AI summary
The invention relates to an electrical device, in particular an electric machine. The device has a housing. The device also has a housing cover, which is in particular detachably connected to the housing. At least one electrical component of the device is housed in the housing. The housing has a housing opening. The housing cover is designed to close the housing opening. According to the invention, the housing cover of the device has an outwardly facing electrical connection for supplying power to and/or outputting power to the device, which is connected to the housing cover and wherein the electrical connection is designed to be detachably connected to a mating connection that is also connected to the housing.