Slide Rail Heat Dissipation via Seamless Rotor Integration

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Solution Overview

Problem

Conventional slide rail devices face efficiency decreases due to increased temperature from stronger electromagnetic fields required for higher speed or loading capacity, which compromises the effectiveness of electromagnetic induction in linear motors.

Innovation Solution

A slide rail device incorporating a heat dissipating member seamlessly connected between the rotor and slider unit, utilizing a thermo-conductive epoxy resin and recirculating bearing units to enhance heat dissipation, along with a method of manufacturing that involves filling a filling space with an uncured heat dissipating material to form a seamless connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If stronger electromagnetic field (greater electric current) is used to increase moving speed or loading capacity, then the moving speed or loading capacity is improved, but the temperature of the rotor increases which compromises electromagnetic induction effectiveness and decreases motor efficiency

Engineering Contradiction:

Improvemoving speedVSAvoidrotor temperature

Core Design Contradiction:

SpeedVSTemperature

Solution Approach 1:

The patent converts the harmful heat generated by the rotor during operation into a beneficial cooling mechanism. The heat dissipation member is seamlessly connected to the rotor, and cooling fluid is circulated through passages in the heat dissipation member, allowing the rotor's own heat generation to be utilized for cooling purposes, thereby maintaining motor efficiency while enabling higher speeds and loading capacities

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

2Force

If stronger electromagnetic field (greater electric current) is used to increase loading capacity, then the loading capacity is improved, but the temperature of the rotor increases which compromises electromagnetic induction effectiveness and decreases motor efficiency

Engineering Contradiction:

Improveloading capacityVSAvoidrotor temperature

Core Design Contradiction:

ForceVSTemperature

Solution Approach 1:

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Device complexity

If a conventional cooling system is not implemented, then the device complexity is reduced, but the temperature rise compromises electromagnetic induction effectiveness and decreases motor efficiency

Engineering Contradiction:

Improvecooling system complexityVSAvoidmotor efficiency

Core Design Contradiction:

Device complexityVSLoss of energy

Solution Approach 1:

The patent merges the cooling function with the existing structural components of the slide rail device. The heat dissipation member is integrated into the slider assembly, and the cooling fluid passages are formed within existing structural elements, allowing cooling to be achieved without adding separate, complex cooling system components

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The cooling system is designed to utilize the device's own operational characteristics for cooling. The cooling fluid is circulated through passages in the heat dissipation member that is directly connected to the rotor, allowing the system to self-regulate temperature without requiring external cooling mechanisms

Inventive Principle:

Principle #25Self-service

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 effectively mitigates temperature rises in the rotor, maintaining the effectiveness of electromagnetic induction and motor efficiency, as shown by reduced temperature plateaus and improved heat transfer, while being cost-efficient and time-saving in production.

Implementation Method 1

a heat dissipating member (40) filling the filling space, and that is seamlessly connected between the rotor and the slider unit

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Implementation Method 2

When an electromagnetic field of the rotor, which is produced by electric current, interacts with a magnetic field of the stator, a resulting magnetic force drives the slider to move relative to the base seat

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11447041B2Slide rail device and method of manufacturing the same

Publication Date: 2022.09.20 TOYO AUTOMATION CO LTD

AI summary

A slide rail device includes a track member, and a slider unit that includes a slider being slidable along the track member and having a recess which is cooperatively defined by two inner side faces and an inner connecting face connected between the inner side faces, and two block boards fixedly fastened to the inner connecting face. The slide rail device further includes a linear motor unit that includes a rotor connected to the inner connecting face and cooperating with the inner connecting face, the inner side faces and the block boards to define a filling space, and a heat dissipating member that fills the filling space, and that is seamlessly connected between the rotor and the slider unit.