Sublimation Heater with Base Zone for Uniform Heat Distribution

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Solution Overview

Problem

Conventional sublimation devices face challenges in achieving even heat distribution across differently sized workpieces, leading to inconsistent transfers of designs and unsightly fading or dimming on the workpieces.

Innovation Solution

The proposed solution involves a mug press system with an indicator, a receptacle, and a heater, which includes a base heater to ensure consistent heat distribution across the workpiece, regardless of size or geometry. The system alerts the user when the target temperature is reached and when the sublimation is complete.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a conventional sublimation device uses a single heat source, then the device structure is simple, but the heat distribution becomes uneven leading to faded or dimmed portions of transferred artwork

Engineering Contradiction:

Improvedevice structureVSAvoidheat distribution uniformity

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

The heating system is divided into multiple independent heating zones (first heating zone with first heating element, second heating zone with second heating element, and third heating zone with third heating element). Each zone can be controlled independently to provide uniform heat distribution across the workpiece, resolving the contradiction between simple structure and uniform heat distribution.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different heating zones are positioned to provide localized heating to specific areas of the workpiece. The heating elements are arranged to ensure that each region of the workpiece receives appropriate heat, eliminating cold spots that cause faded artwork while maintaining overall system effectiveness.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If the sublimation device interfaces with differently sized workpieces having different geometries, then the device becomes more versatile, but the heat distribution becomes uneven

Engineering Contradiction:

Improveworkpiece size accommodationVSAvoidtransfer consistency

Core Design Contradiction:

Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The sublimation device is designed with multiple heating zones and a configurable pressing mechanism that can accommodate various workpiece sizes and geometries. The system maintains consistent heat distribution across different workpiece types, enabling universal application while preserving transfer quality.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The pressing mechanism and heating zones are configured to adapt dynamically to different workpiece geometries. The system can adjust pressure and heat distribution patterns based on the specific workpiece being processed, ensuring consistent results across varying sizes and shapes.

Inventive Principle:

Principle #15Dynamics

3Ease of operation

If the sublimation process is performed without temperature monitoring, then the operation is simpler, but the transfer quality becomes inconsistent

Engineering Contradiction:

Improveoperation simplicityVSAvoidtransfer quality consistency

Core Design Contradiction:

Ease of operationVSManufacturing precision

Solution Approach 1:

The system incorporates temperature sensors in each heating zone that continuously monitor temperature and provide feedback to the control system. This automatic temperature regulation ensures consistent transfer quality while simplifying operation, as the system self-regulates without requiring manual intervention.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The heating zones are equipped with automatic temperature control that monitors and adjusts heating parameters independently. The system performs self-regulation to maintain optimal sublimation conditions, eliminating the need for complex manual monitoring while ensuring consistent transfer quality.

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

This solution ensures consistent and even sublimation of designs onto workpieces of varying sizes, preventing fading and dimming issues, and simplifying the process for novice users.

Implementation Method 1

transferring infusible ink from a sheet to a surface of a workpiece (e.g., a mug) via heat and pressure by a sublimation device

Methodology Applied

Scientific EffectSublimation: Sublimation

Implementation Method 2

an even distribution of heat onto the surface of a workpiece from the sublimation device

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentUS12325250B2Sublimation systems and related methods

Publication Date: 2025.06.10 CRICUT INC

AI summary

A method of operating a sublimating device includes providing heat to a cavity of the sublimating device by increasing (i) a temperature of a heater to a predetermined target temperature and (ii) a temperature of a base heater to a predetermined standby temperature. The method further includes determining a difference between the predetermined target temperature and a reduced temperature of the heater. The method also includes determining whether a workpiece is arranged in the cavity based on the difference between the predetermined target temperature and a reduced temperature.