Vehicle Linear Motor Horizontal Orientation Vibration Mitigation
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Solution Overview
Problem
Conventional vehicle linear motors experience reduced durability and lifespan due to vibrations in the vertical direction, which cause the mover and armatures to move closer and farther apart, affecting the support members between them.
Innovation Solution
A vehicle linear motor design featuring a tubular casing with a flat plate mover and armatures arranged to face each other horizontally, with the mover's longitudinal direction aligned horizontally, and support members allowing sliding motion in the longitudinal direction, mitigating the impact of vertical vibrations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the linear motor is mounted horizontally to avoid vertical vibration alignment, then resonance vibration is suppressed, but the mover and armatures face each other in the vertical direction causing reduced durability due to vibration-induced movement
Solution Approach 1:
The patent reorients the linear motor so that the mover and armatures face each other in the horizontal direction rather than the vertical direction. This dimensional change allows the motor to operate horizontally, placing the moving components perpendicular to the dominant vertical vibration direction, thereby reducing vibration-induced stress on support members while maintaining motor functionality
Solution Approach 2:
The patent introduces vibration isolation mounts as intermediary elements between the linear motor and the vehicle body. These mounts act as mediators that absorb and dampen vertical vibrations before they reach the motor components, protecting the mover and armatures from vibration-induced movement while allowing the motor to maintain its operational orientation
2Volume of moving object
If the mover is positioned to face armatures in the vertical direction for compact mounting, then space is saved, but vibration transmission causes closer and farther movement reducing component lifespan
Solution Approach 1:
The patent reconfigures the motor orientation so that the mover and armatures face each other horizontally rather than vertically. This spatial rearrangement positions the magnetic gap and moving components perpendicular to the vertical vibration direction, allowing compact mounting while preventing vibration-induced changes in the distance between mover and armatures, thereby extending component life duration
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 configuration enhances the durability and lifespan of the linear motor by reducing the adverse effects of vertical vibrations on the mover and armatures, maintaining consistent thrust force and preventing support member deterioration.
Implementation Method 1
Each of the pair of armatures (7) includes a magnetic pole (7D) that is arranged to move the mover (8) relative to the armatures (7) in the longitudinal direction
Implementation Method 2
a support member (9) configured to slidably support the mover (8) such that the mover (8) moves in a longitudinal direction of the mover (8)
Data Source
AI summary
A vehicle linear motor includes: a tubular casing; a pair of armatures placed and fixed in the casing; a mover formed in a flat plate shape and placed to face the pair of armatures and to be movable in the casing; and a support member configured to slidably support the mover such that the mover moves in a longitudinal direction of the mover. The mover formed in the flat plate shape includes a plurality of magnets that are arranged at intervals in the longitudinal direction. Each of the pair of armatures has a magnetic pole that is arranged to move the mover relative to the armatures in the longitudinal direction. The casing is mounted on a vehicle such that the longitudinal direction is a horizontal direction, and the mover and the armatures are placed to face each other in the horizontal direction.