Motor End Cover and Shell Assembly via Embedded Clamping Strips
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Solution Overview
Problem
The connection between the cast aluminum end cover and shell in micro motors is complex, requiring extra parts and accessories, leading to low assembly efficiency and increased costs due to the use of clips or screws.
Innovation Solution
An assembly structure featuring a rabbet on the end cover with clamping grooves and through holes, combined with notch grooves and clamping strips on the shell, allowing for a simplified and cost-effective connection through embedding clamping strips into the grooves, eliminating the need for additional components like clips or screws.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If clips or screws are used to connect the end cover and shell, then the connection is achieved, but the structure becomes complex and assembly efficiency decreases
Solution Approach 1:
The clamping groove and through hole are integrated into a single structural feature on the end cover. The clamping groove extends from the rabbet through the side wall, with the through hole providing access to its inner end, combining what would traditionally be separate fastening elements into one unified structure that eliminates the need for additional clips or screws.
Solution Approach 2:
The connection function is extracted from the end cover body and concentrated into the clamping groove structure. By removing the need for separate clips or screws, the invention extracts only the essential fastening feature (the groove with embedded clamping strip) while eliminating unnecessary additional parts.
2Reliability
If clips or screws are used for assembly, then connection is achieved, but assembly efficiency is low and cost increases
Solution Approach 1:
The clamping strip embedded in the clamping groove creates a self-contained fastening system. The structure itself provides the connection mechanism without requiring external clips or screws, enabling the end cover and shell to be assembled and disassembled efficiently through simple embedding and removal of the clamping strip.
Solution Approach 2:
The connection system is segmented into the clamping groove structure on the end cover and the corresponding notch groove on the shell, with the clamping strip as a separate embeddable element. This segmentation allows for simplified assembly where the clamping strip is embedded into the groove to secure the connection, and facilitates easy disassembly by removing the strip.
3Reliability
If additional parts and accessories are arranged in the motor, then connection is achieved, but the number of parts increases and cost increases
Solution Approach 1:
The clamping groove structure serves multiple functions: it provides the connection interface between the end cover and shell, houses the clamping strip for secure attachment, and integrates with the rabbet and side wall structures. This multi-functional design eliminates the need for separate clips, screws, or other fastening accessories.
Solution Approach 2:
The invention merges the functions of the rabbet, side wall, clamping groove, and through hole into a unified structural system on the end cover. This integration consolidates what would traditionally require multiple separate parts (clips or screws plus mounting features) into a single molded or machined structure.
Data Source
AI summary
An assembly structure, including an end cover and a shell. The end cover includes a rabbet, a side wall, and an end surface. The shell includes an end part. A plurality of clamping grooves is arranged at a bottom of the rabbet and on the side wall of the end cover. Through holes are arranged above the clamping grooves and on the end surface of the end cover and communicate with the clamping grooves. A plurality of notch grooves is arranged at the end part of the shell. Clamping strips are arranged above the notch grooves and at the end part of the shell. The end cover is installed at the end part of the shell. The clamping strips are embedded in the clamping grooves for allowing the shell and the end cover to be connected together.