Motor Terminal Assembly with Centering Ribs and Hook Portions
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Solution Overview
Problem
The existing motor terminal assembly methods often result in terminal damage and increased costs due to alignment issues during insertion, require significant installation space, and involve complex management processes, especially when connecting to other components like ECU, due to the need for precise positioning and additional components like fusing and harnesses.
Innovation Solution
A motor terminal assembly featuring a body with centering ribs and hook portions that allow aligned insertion into a terminal hole, preventing inclination and bias, along with a flexible cable connection to minimize space and simplify assembly, and the use of fixed ribs to restrict movement and ensure accurate alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the terminal is fixed into the terminal hole, then position accuracy between terminals is improved, but installation space increases due to additional components like fusing and harness
Solution Approach 1:
The patent removes the fusing component from the terminal assembly, extracting only the essential terminal connection function. This eliminates the need for additional harness and fusing components, reducing installation space while maintaining position accuracy through the self-aligning terminal design with inclined surfaces and guide ribs
Solution Approach 2:
The terminal is designed to perform multiple functions: alignment guidance through inclined surfaces, positioning through guide ribs, and electrical connection. This multi-functional design eliminates the need for separate alignment and positioning components, reducing overall installation space while maintaining manufacturing precision
2Ease of manufacture
If the terminal is inserted into the terminal hole in a fixed state, then installation process is simplified, but terminal damage occurs due to inclination or bias during insertion
Solution Approach 1:
The terminal is designed with pre-formed inclined surfaces and guide ribs that perform the alignment action before the terminal is fully inserted into the hole. This preliminary self-alignment prevents inclination and bias during insertion, protecting terminal integrity while keeping the installation process simple and tool-free
3Manufacturing precision
If the terminal hole is made larger to allow terminal movement, then assembly tolerance is reduced and terminal position accuracy is improved, but terminal instability increases
Solution Approach 1:
The terminal is designed to be movable within the terminal hole along the insertion direction, allowing it to dynamically adjust its position to achieve optimal alignment. The guide ribs constrain this movement to prevent excessive displacement, maintaining both position accuracy and stability. The terminal can move freely within tolerance ranges but is restrained when approaching limit positions
Data Source
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AI summary
Disclosed herein is a motor terminal 100 including a body 110 including a connection terminal 111, a rear end portion 112 allowing the connection terminal 111 to be connected to a busbar terminal 410, and a front end portion 113 allowing the connection terminal 111 to be connected to a terminal of another component, and a pair of hook portions 120 formed on both sides of the body 110, respectively, so as to be symmetrical on the basis of a criteria line passing a center of the body 110 in a width direction, and configured so as to be open to be further away from each other as directed toward the front end portion 113 from the rear end portion 112 and to be elastically deformable. Consequently, it may be possible to prevent damage to the terminal 100 and more effectively prevent the terminal 100 from being inclined or biased in an initial state in which the terminal 100 is inserted into a terminal hole 210.