Motor Bus Bar Terminal Alignment Guide
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Solution Overview
Problem
Conventional motors face difficulties in aligning and assembling bus bar terminals with the terminal-housing assembly, leading to potential damage due to misalignment or improper positioning.
Innovation Solution
A motor design featuring a bus bar-terminal assembly with an alignment guide part on the outer surface and a corresponding guide rib on the housing, allowing for precise alignment and integration of the bus bar and terminal components as a single component, enhancing assembly performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the bus bar terminals are assembled to the terminal-housing assembly using conventional methods, then the assembly can be completed, but it is difficult for the terminals to be aligned and assembled properly
Solution Approach 1:
The alignment guide part is pre-formed on the terminal-housing assembly before the bus bar terminals are installed. This preliminary alignment feature guides the bus bar terminals into the correct position during assembly, eliminating the need for complex alignment operations and preventing misalignment damage.
Solution Approach 2:
The alignment guide part acts as an intermediary element between the terminal-housing assembly and the bus bar terminals. It mediates the alignment process by providing a physical guide that ensures proper positioning, making the assembly process easier and more precise without requiring additional alignment tools or procedures.
2Reliability
If the terminal-housing assembly is not positioned at the right place or the power terminal is inclined or biased, then assembly can still proceed, but the terminals of the bus bar may be damaged
Solution Approach 1:
The alignment guide part provides beforehand protection by guiding the bus bar terminals into the correct position before the assembly process completes. This prevents misalignment and inclination that could cause terminal damage, cushioning against assembly errors before they occur.
Solution Approach 2:
The alignment guide part preemptively counteracts potential misalignment and inclination issues by providing a physical constraint that prevents the bus bar terminals from being positioned incorrectly in the first place, rather than correcting errors after they occur.
3Device complexity
If multiple separate components are used for the bus bar and terminal-housing assembly, then each component can be optimized independently, but the number of components increases and assembly complexity increases
Solution Approach 1:
The bus bar and terminal-housing assembly are merged into a single integrated component with the alignment guide part formed directly on the terminal-housing. This reduces the number of separate components and simplifies assembly while maintaining the ability to optimize each functional area, as the integration is achieved through forming rather than complex fastening.
Data Source
AI summary
The present invention provides a motor that comprises: a housing; a stator disposed in the housing and having a coil wound therearound; a rotor disposed at an inner side of the stator; a shaft coupled to the rotor; a bus bar-terminal assembly disposed at an upper side of the stator, wherein the bus bar-terminal assembly comprises: a bus bar including a connection terminal coupled to the coil and a terminal connected to an external power supply; and a body disposed at the upper side of the stator such that a part of the bus bar is located inside of the body; wherein a part of the connection terminal and a part of the terminal protrude to an outside of the body, wherein the body includes an alignment guide part formed at an outer circumferential surface of the body to be slide-coupled to an inner circumferential surface of the housing, wherein the connection terminal and the terminal are exposed at an upper surface of the body, wherein the body includes a coil hole through which a connection end of the coil passes, and wherein the coil hole is disposed to be adjacent to the connection terminal exposed at the body.