Motor Ground Terminal Clip Structure for Secure Capacitor Wire Assembly
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Solution Overview
Problem
The existing ground terminals for capacitors in motors face issues with securing the wire connection, leading to potential separation due to external forces, which complicates the assembly process and increases the risk of noise generation.
Innovation Solution
A ground terminal design featuring a body unit with a bent ground unit, clip units, and a coupling unit, where the clip units have a seating groove for wire insertion and fixing units to secure the wire, enhancing the coupling force and stability, and a cover assembly with a guide groove to facilitate secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wire of the capacitor is directly welded to the ground terminal, then the electrical connection is established, but the wire may be separated from the ground terminal by external force
Solution Approach 1:
The ground terminal is divided into multiple functional parts: a body unit, a ground unit for electrical connection, and multiple clip units for mechanical securing. This segmentation allows the terminal to simultaneously provide electrical conductivity and mechanical strength, resolving the contradiction between establishing electrical connection and preventing wire separation.
Solution Approach 2:
The invention merges the electrical connection function (ground unit) and the mechanical securing function (clip units) into a single integrated ground terminal structure. By combining these functions, the terminal can both establish reliable electrical connection and resist external forces that would separate the wire, thereby resolving the technical contradiction.
2Strength
If the wire is secured with multiple clip units, then the coupling force is increased, but the device complexity increases
Solution Approach 1:
Multiple clip units are integrated into a single ground terminal body, merging what would otherwise be separate components into one unified structure. This integration increases the coupling force through multiple attachment points while avoiding the complexity of assembling multiple separate parts, thus resolving the contradiction between strength and device complexity.
Solution Approach 2:
The clip units are designed to automatically secure the wire through their elastic deformation and snap-fit mechanism, eliminating the need for additional fastening operations or complex assembly steps. This self-securing feature increases coupling force while maintaining simple device structure and easy installation.
3Ease of manufacture
If the ground terminal uses a simple welding process, then the manufacturing process is simple, but the assembly process becomes complex and time-consuming
Solution Approach 1:
The clip units are designed to automatically secure the wire through elastic deformation and snap-fit action, eliminating the need for manual tightening, fastening, or complex assembly operations. This self-securing mechanism maintains simple manufacturing while dramatically improving assembly speed and productivity, as the wire is secured instantly when the cap is installed.
Solution Approach 2:
The clip units are pre-formed with elastic properties during manufacturing, so that they automatically engage and secure the wire upon installation without requiring additional assembly steps. This preliminary preparation of the securing mechanism simplifies the overall assembly process and increases production efficiency.
Data Source
AI summary
An embodiment of the present invention relates to a cover assembly and a motor comprising same, the cover assembly comprising: a cover plate; a ground terminal disposed on the cover plate; and a capacitor connected to the ground terminal by means of a wire. The ground terminal comprises: a body unit; a ground unit bent from one area of the upper end of the body unit to a first direction; clip units extending from both sides of the body unit to a second direction that is opposite from the first direction; and a coupling unit extending from the lower part of the body unit. The wire is coupled to the clip units by means of insertion. Accordingly, the present invention enables the wire of the capacitor to be fixed in a temporarily assembled state and thus enables an automation process during assembly of the motor.