Drive Device Axial Connector Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional drive devices require increased manufacturing steps due to the need for a cover member to be disposed after soldering connector terminals onto the substrate, making the assembly process more complex.
Innovation Solution
A drive device configuration where a cover member is assembled by moving closer to the substrate along the axial direction, press-fitting connector terminals to conductive connection portions, and using a frame member with a substrate pedestal to separate the substrate from the frame body, allowing for easier assembly and reduced work steps while shielding the connection portion from the outside.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cover member is disposed to protect the substrate and connector terminal connection portion, then the connection portion is shielded from the outside, but the manufacturing steps are increased because the cover member must be disposed after soldering
Solution Approach 1:
The cover member is designed with pre-formed connector terminals that extend in the axial direction, allowing the terminals to be press-fitted into the substrate's connection portions during the cover member assembly process itself, eliminating the need for separate soldering operations after cover member installation
Solution Approach 2:
The connector terminals are integrated directly into the cover member structure, combining the protective function of the cover member with the electrical connection function of the terminals, allowing both protection and connectivity to be achieved in a single assembly operation
2Reliability
If connector terminals are press-fitted to conductive connection portions on the substrate, then electrical connectivity is established, but the connector terminals may interfere with the frame body during press-fitting
Solution Approach 1:
The connector terminals are designed to extend in the axial direction (vertical dimension) rather than horizontally, allowing them to approach the substrate's connection portions from above without interfering with the frame body, which is positioned in the radial plane
Solution Approach 2:
The space between the frame body and substrate is utilized by positioning the substrate on a pedestal that protrudes from the frame body, creating vertical separation that provides sufficient clearance for the connector terminals to be press-fitted without contacting the frame body
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution simplifies the assembly process by reducing the number of work steps and ensures easy press-fitting of connector terminals without interference with the frame body, while maintaining protection and electrical connectivity.
Implementation Method 1
a press-fit connection to the at least one conductive connection portion
Data Source
AI summary
A drive device includes a motor, a substrate arranged perpendicular to a motor shaft on one axial end of the motor and having a conductive connection portion, a frame body reserving a space on a substrate side, a frame member having a substrate pedestal for fixing the substrate, a cover member covering an opposite surface of the substrate relative to the frame member, and a connector having a connector terminal that extends along the axial direction and is press-fitted to the connection portion of the substrate. When the connector terminal of the connector is press-fitted to the substrate and the cover member is disposed at the same time, the number of work steps in an assembly procedure of the drive device is reduced.