Induction heating fryer

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Solution Overview

Problem

Conventional electromagnetic induction heating fryers face issues with uneven heating distribution within the frying container, leading to non-uniform food frying, and lack an automated oil purification and feeding system, making them complex and prone to oil spills.

Innovation Solution

An induction heating fryer design featuring a feed pipe integrated with the discharge pipe on the inner bottom of the frying container for automated oil feeding, combined with an automatic oil purifying unit using a pump and filtering system, ensuring even heating and preventing oil spills.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the magnetic force line generating coil is located under the frying basket to heat the frying oil, then the heating function is achieved, but the magnetic force line is not distributed evenly into the frying container, causing different internal temperatures and non-uniform food frying

Engineering Contradiction:
Improvetemperature uniformityVSAvoidheating structure configuration
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The heating system is segmented into multiple independent heating zones with separate control circuits. The frying container bottom is divided into multiple heating regions, each equipped with its own heating element that can be independently controlled to achieve uniform temperature distribution across the entire cooking surface.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different regions of the heating system are designed with different heating characteristics to match the specific thermal requirements of various cooking zones. The heating elements are strategically positioned and configured to provide localized heating control, ensuring optimal temperature distribution for different food types and cooking methods.

Inventive Principle:
Principle #3Local quality

2Ease of operation

If manual pouring of frying oil is used to feed the frying container, then the configuration is simple, but the frying oil may be spattered to the outside or spilled by mistake

Engineering Contradiction:
Improveoil feeding operationVSAvoidoil spattering and spilling
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system incorporates an automatic oil feeding mechanism that self-regulates the oil supply process. The feeding pump automatically draws oil from the storage container and delivers it to the frying container through controlled piping, eliminating the need for manual pouring and preventing oil spattering and spilling through automated controlled dispensing.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

An automated oil feeding system acts as an intermediary between the oil storage container and the frying container. This intermediate mechanism includes controlled piping and dosing equipment that safely transfers oil without direct human contact, preventing oil spattering and spilling while maintaining simple operation for the user.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Extent of automation

If a separate oil feed pipe is installed above the frying container to automate oil supply, then oil spilling is prevented, but the fryer configuration becomes complicated

Engineering Contradiction:
Improveoil feeding automationVSAvoidfryer configuration
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The oil feeding system is nested within the existing fryer structure. The feeding pump and piping are integrated into the fryer's internal framework, with the oil delivery system positioned to utilize existing spatial arrangements. This nesting approach automates oil feeding while minimizing additional external components and maintaining a compact, simple overall configuration.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The automated oil feeding system is designed to perform multiple functions: it not only prevents oil spilling but also controls oil dosage, monitors oil levels, and can be integrated with the heating control system. This multi-functionality reduces the need for separate dedicated components, thereby simplifying the overall fryer configuration while achieving automation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Device complexity

If the discharge pipe is used for both oil discharge and feeding, then the configuration is simplified, but frying remnants may be introduced into the feed pipe

Engineering Contradiction:
Improvepipe system configurationVSAvoidfeed pipe blockage risk
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The system performs preliminary separation of frying remnants from oil before the oil is fed back into the container. A filtering mechanism is positioned in the oil discharge path to remove food particles and debris before the cleaned oil enters the feeding pump and piping, preventing blockages while maintaining a simplified pipe system configuration.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

A filtering system acts as an intermediary between the discharge pipe and the feed pipe. This intermediate filtering stage separates frying remnants from the oil stream, allowing the cleaned oil to proceed through the feeding system without introducing contaminants that could cause blockages, while maintaining overall system simplicity.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 provides uniform heating, automates the oil purification and feeding process, simplifying the fryer's configuration, and prevents oil spills, enhancing the overall efficiency and ease of use.

Implementation Method 1

an induction heating unit (865) disposed on the outer peripheral surface of the frying container (860) to convert electric energy into heat energy through the generation of eddy current and electromagnetic induction near the outer peripheral surface of the frying container (860)

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

an induction heating unit (865) disposed on the outer peripheral surface of the frying container (860) to convert electric energy into heat energy through the generation of eddy current and electromagnetic induction near the outer peripheral surface of the frying container (860)

Methodology Applied
Scientific EffectEddy current: Eddy Currents

Data Source

PatentEP3311714B8Induction heating fryer
Publication Date: 2019.10.02 BUMIL IND

AI summary

The present invention relates to an induction heating fryer including: a case (820); a cover unit (810) disposed openably/closably on top of the case (820); a frying container (860) disposed inside the case (820); a frying basket (880) disposed inside the frying container (860); a basket cap (815) disposed on the center of the underside of the cover unit (810) to open and close the frying basket (880); and an induction heating unit (865) disposed on the outer peripheral surface of the frying container (860), wherein a feed pipe (870) is disposed on a discharge pipe (850) disposed on the inner bottom of the frying container (860), so that when frying oil is fed to the frying container (860), it is not spattered to the outside of the frying container (860) or is not spilled by mistake.