Linear Motor Loading Path for Precise High-Speed Object Transfer

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Solution Overview

Problem

Existing secondary battery manufacturing processes face limitations in controlling the individual position and speed of objects due to the use of conveyors, leading to complexity and reduced supply speed.

Innovation Solution

An object loading system utilizing a linear motor system (LMS) with a first stator and controller to control the position and speed of objects through a circulation traveling path, including acceleration and return sections, allowing precise control of object movement and loading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a conveyor is used to transfer the radical unit, then the transfer process is continuous, but the configuration of the facility becomes complicated and individual position and speed of the object cannot be controlled

Engineering Contradiction:
Improveindividual position and speed controlVSAvoidfacility configuration
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent replaces the conventional mechanical conveyor system with a linear motor system that uses electromagnetic fields to propel loading parts. This substitution eliminates the need for complex mechanical transmission mechanisms while enabling precise control of position and speed through electronic control of the linear motor, directly resolving the contradiction between control precision and system complexity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the control parameters from fixed mechanical conveyor speed to variable electronic control signals for the linear motor. By adjusting the frequency and amplitude of the control signals, the system can dynamically control the speed and position of loading parts, achieving individual object control without mechanical complexity

Inventive Principle:
Principle #35Parameter changes

2Productivity

If a conveyor is used to transfer the radical unit, then the transfer process is continuous, but the supply speed is limited

Engineering Contradiction:
Improvesupply speedVSAvoidfacility configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The linear motor system replaces the mechanical conveyor, enabling higher supply speeds through direct electromagnetic propulsion without mechanical inertia limitations. The system can rapidly accelerate and decelerate loading parts, significantly increasing the supply speed of objects while maintaining a simpler facility configuration

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent implements dynamic speed control where the loading parts can be accelerated and decelerated at different rates depending on the process requirements. The linear motor enables rapid changes in velocity, allowing the system to optimize supply speed dynamically rather than operating at a fixed conveyor speed

Inventive Principle:
Principle #15Dynamics

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 system achieves precise positional accuracy of 0.05 mm to 0.1 mm, minimizes vacuum loss and distortion, and significantly improves loading quality and supply speed by individually controlling object position and speed.

Implementation Method 1

one or more first loading parts repeatedly circulated through the first section, the acceleration section, and the second section by the interaction with the magnetic fields generated in the first stator

Methodology Applied
Scientific EffectElectromagnetic interaction: Electromagnetic Propulsion

Data Source

PatentEP4674795A1Object loading system
Publication Date: 2026.01.07 LG ENERGY SOLUTION LTD
  • EP4674795A1 patent drawingFigure 1
  • EP4674795A1 patent drawingFigure 2a
  • EP4674795A1 patent drawingFigure 2b

AI summary

An object loading system of the present invention includes a first stator having a circulation traveling path that sequentially passes through a first section, an acceleration section, and a second section, one or more first loading parts repeatedly circulated through the first section, the acceleration section, and the second section and configured to hold an object disposed in the first section to load the object in the second section, and a controller configured to control the first loading part to be repeatedly circulated through the first section, the acceleration section, and the second section, wherein the controller is configured to control the first loading part to pass through the acceleration section at a faster speed than each of the first section and the second section.