Electric Seat Motor Mounting via Linear Sliding Guide
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Solution Overview
Problem
The existing motor mounting structure for electric seat sliding devices requires complex assembly and elastic bush adjustments to prevent backlash and vibration, making it difficult to automate and increasing production costs due to the need for three-dimensional bending processes.
Innovation Solution
A motor mounting structure featuring a motor with protruding portions supported by elastic members and a bracket with guide portions, allowing for linear sliding assembly and simplification of the bracket's shape, enabling easier automation and reduced manufacturing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the motor is assembled to the motor support bracket using elastic bushes with elastic variation, then backlash and vibration are prevented, but the workability of the assembly operation is deteriorated and automation is difficult
Solution Approach 1:
The patent introduces guide portions as intermediary structures that mediate between the elastic bushes and the motor support bracket. The guide portions provide a linear sliding path that guides the motor into the correct position during assembly, eliminating the need for complex elastic variation adjustments while maintaining the backlash-prevention function of the elastic bushes
Solution Approach 2:
The patent changes the assembly approach from three-dimensional elastic adjustment to one-dimensional linear sliding movement. The guide portions constrain the motor's movement path to a straight line, simplifying the assembly operation from complex multi-directional elastic adjustment to simple linear insertion and sliding
2Device complexity
If the motor support bracket is made from one metal sheet with three-dimensional bending, then the structure is integrated, but the man-hour for press-processing and perforating is increased
Solution Approach 1:
The patent segments the motor support bracket into a flat plate structure with integrated guide portions, eliminating the need for complex three-dimensional bending. The bracket is designed as a two-dimensional planar component with cutouts and protrusions that provide the necessary structural function without requiring costly and time-consuming 3D press-processing
Solution Approach 2:
The patent extracts the three-dimensional bending requirement from the bracket design, replacing it with a flat plate configuration. The essential structural and guiding functions are achieved through strategic placement of cutouts, holes, and protrusions on a two-dimensional plane, removing the need for complex forming operations
3Productivity
If the opening portion and guide portions are designed to receive the motor with elastic support members, then the motor positioning is simplified and automation is facilitated, but the bracket design becomes more complex
Solution Approach 1:
The guide portions are designed to automatically guide the motor into the correct position during assembly. The linear sliding path and geometric constraints of the guide portions perform the positioning function autonomously without requiring external automation equipment or complex control systems, enabling simple automated assembly
Solution Approach 2:
The guide portions are pre-designed with specific geometries (cutouts, protrusions, and linear paths) that predetermined the motor's assembly path and final position. This preliminary structural design eliminates the need for complex real-time control or adjustment mechanisms during the assembly process
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
This solution simplifies the assembly process, reduces production costs, and facilitates automation by allowing linear sliding assembly, stabilizing the motor's position and preventing rotation, thereby improving workability and productivity.
Implementation Method 1
a first elastic support member arranged to be mounted on the first protruding portion of the motor; a second elastic support member arranged to be mounted on the second protruding portion of the motor
Data Source
AI summary
A motor mounting structure for an electric seat sliding device includes: a motor; first and second elastic support members arranged to be mounted on the first and second protruding portions of the motor; a bracket arranged to support the both ends of the motor through the first and second elastic support members; and the second elastic support member being arranged to be moved between a position at which the second elastic support member is engaged with the second guide portion, and a position where the second elastic support member is disengaged from the second guide portion, and where the second elastic support portion is mounted on the second protruding portion of the motor positioned at the initial assembly position.