Continuous Flaker Ice-Making Freezer Self-Cleaning Without Disassembly

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Solution Overview

Problem

Current ice-making freezer cleaning processes are time-consuming, require disassembly, and involve handling corrosive solutions, leading to potential safety hazards and reduced operational life due to mineral buildup.

Innovation Solution

A simplified cleaning method for continuous flaker ice-making freezers that uses a fluid reservoir assembly to switch between ice-making and cleaning modes without disassembly, utilizing a cleaning solution that submerges components without the need for manual handling of corrosive substances, allowing for routine maintenance and extended operational life.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional cleaning methods are used, then mineral buildup is removed, but cleaning time increases and operational life decreases

Engineering Contradiction:
Improveoperational lifeVSAvoidcleaning time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary actions by automatically circulating cleaning solution through the water supply circuit before significant mineral buildup occurs. The microprocessor-controlled system monitors cleaning intervals and initiates cleaning cycles proactively, preventing extensive mineral accumulation that would require lengthy manual cleaning and disassembly operations.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The ice-making freezer performs self-cleaning through an automated system where the cleaning solution is pumped through the water supply circuit, soaking and dissolving mineral buildup on the auger and ice extruder parts. The system automatically drains and refills the cleaning solution without requiring technician disassembly or manual handling, enabling routine maintenance that extends operational life.

Inventive Principle:
Principle #25Self-service

2Reliability

If disassembly is performed for cleaning, then thorough cleaning is achieved, but exposure to harmful cleaning solutions increases

Engineering Contradiction:
Improvecleaning thoroughnessVSAvoidexposure to corrosive solutions
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The system uses the existing water supply circuit as an intermediary pathway to deliver cleaning solution to the auger and ice extruder parts. This closed-loop circuit allows thorough cleaning of internal components while containing the corrosive cleaning solution within the system, preventing technician exposure. The pump and tubing act as intermediaries that enable cleaning without direct contact or disassembly.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The automated system performs cleaning without requiring technician disassembly or manual handling of cleaning solutions. The microprocessor-controlled pump automatically circulates the cleaning solution through the water supply circuit, allowing thorough cleaning while eliminating human exposure to harmful chemicals. The system serves itself by monitoring and executing cleaning cycles without technician intervention.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If manual cleaning handling is used, then cleaning can be performed, but safety hazards increase due to corrosive solutions

Engineering Contradiction:
Improvecleaning operationVSAvoidsafety hazards
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The system eliminates manual handling of corrosive cleaning solutions by implementing self-service automation. The microprocessor-controlled pump automatically fills, circulates, and drains the cleaning solution through the water supply circuit. This automation makes cleaning operation simple (pressing a button or scheduled operation) while completely eliminating safety hazards associated with manual handling of corrosive substances.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces manual mechanical cleaning operations with an automated pump-driven fluid circulation system. Instead of technicians manually disassembling, soaking, and reassembling components, the electrical pump automatically circulates cleaning solution through the water supply circuit, substituting hazardous manual mechanical operations with safe automated fluid dynamics.

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

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 method reduces cleaning time, minimizes exposure to hazardous solutions, and ensures thorough cleaning without disassembly, thereby extending the operational life of the freezer and making routine maintenance more feasible.

Implementation Method 1

The cleaning solution used to remove mineral buildup is generally a mixture of citric and phosphoric acids and warm water

Methodology Applied
Scientific EffectDissolution: Solvation

Implementation Method 2

By operating an electromagnetic pump of the water supply circuit, the ice-making water in the internal water storage tank is supplied to the auger-type ice making machine

Methodology Applied
Scientific EffectPumping: Pump

Data Source

PatentEP3055629B1Continuous flaker ice-making freezer and a method of cleaning thereof
Publication Date: 2019.09.11 SCOTSMAN GROUP LLC
  • EP3055629B1 patent drawingFigure 1A~1B
  • EP3055629B1 patent drawingFigure 2A~2C
  • EP3055629B1 patent drawingFigure 3A~3B

AI summary

An ice-making freezer having a freezer assembly; a fluid reservoir coupled to the freezer assembly by a hose and configured to contain a fluid; and a mounting assembly configured to adjust the fluid reservoir to be in a first position during an ice-making mode and in a second position during a cleaning mode, wherein when the fluid reservoir is in the second position the fluid submerges at least a portion of the freezer assembly.