Stator and motor comprising same
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Solution Overview
Problem
Interference occurs between power connectors and other components during the manufacturing process of motors, particularly in brushless motors used in capability-variable compressors, due to the integration of power connectors with stators.
Innovation Solution
A stator cover is designed with integrated wire connection terminals and a power connector, featuring a connector fixing portion that temporarily secures the power connector during assembly, ensuring proper alignment and preventing interference with other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the power connector is integrated into the stator, then the manufacturing process is simplified, but interference occurs between the power connector and other components during assembly
Solution Approach 1:
The stator cover is divided into multiple functional portions: a first terminal receiving portion for wire connection terminals, a second terminal receiving portion for wire connection terminals, and a connector fixing portion for the power connector. This segmentation allows each component to be positioned and fixed independently, preventing interference during assembly while maintaining the integrated structure's manufacturing simplicity.
Solution Approach 2:
The connector fixing portion acts as an intermediary structure that mediates between the power connector and other stator components. By providing a dedicated fixing area with fixing ribs, it isolates the power connector from potential interference zones while maintaining electrical connectivity, thus resolving the contradiction between integration and interference prevention.
2Productivity
If wire connection terminals and power connector are integrated in the stator cover, then assembly efficiency is improved, but alignment precision becomes more difficult to maintain
Solution Approach 1:
The stator cover is pre-designed with receiving portions and fixing structures in specific positions before assembly. The first and second terminal receiving portions are pre-positioned to receive wire connection terminals, and the connector fixing portion is pre-configured with fixing ribs to secure the power connector. This preliminary arrangement ensures proper alignment is automatically achieved during assembly, maintaining precision while improving efficiency.
Solution Approach 2:
Different portions of the stator cover are designed with specific local qualities: the terminal receiving portions have structures optimized for receiving wire connection terminals, while the connector fixing portion has fixing ribs optimized for securing the power connector. This localized design ensures each component aligns precisely with its intended position, maintaining manufacturing precision across the integrated structure.
Data Source
Figure 1A
Figure 1B
Figure 2
AI summary
A motor according to an embodiment of the present disclosure may comprise a rotor. The motor may comprise an insulator and a stator comprising multiple coils wound around the insulator. The motor may comprise a stator cover coupled to the stator. The insulator may comprise a first terminal groove for containing one end of each of the multiple coils and a second terminal groove for containing the other end of each of the multiple coils. The stator cover may comprise a first terminal containing portion inserted into/coupled to the first terminal groove such that a first wire connecting terminal is disposed therein. The stator cover may comprise a second terminal containing portion inserted into/coupled to the second terminal groove such that a second wire connecting terminal is disposed therein. The stator cover may comprise a power connector having one end connected to the second wire connecting terminal of the second terminal containing portion, the other end of the power connector being connected to an external power supply so as to apply power to the multiple coils.