Refrigeration and/or freezer device

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Solution Overview

Problem

Refrigerators and freezers lack intelligent temperature control adjustments for freshly stored goods and varying climate conditions, leading to increased energy consumption and reduced food quality due to general standard settings.

Innovation Solution

A control unit connected to a terminal device uses user and environmental data, such as shopping lists, location, and weather data, to automatically adjust cooling performance and temperature settings based on user behavior and external influences, reducing energy consumption and improving food quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If warm refrigerated goods are stored in the refrigerator without pre-cooling, then the appliance is easier to use, but energy consumption increases and refrigerated goods quality deteriorates

Engineering Contradiction:
Improveease of useVSAvoidenergy consumption
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The control unit pre-cools the refrigerated interior before the user stores warm goods by retrieving shopping list data from the terminal device, predicting upcoming storage needs, and adjusting temperature in advance to minimize energy consumption while maintaining ease of use

Inventive Principle:
Principle #10Preliminary action

2Reliability

If the refrigerated interior temperature is lowered to accommodate warm goods, then refrigerated goods quality is improved, but energy consumption increases

Engineering Contradiction:
Improverefrigerated goods qualityVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system performs preliminary temperature adjustment based on predicted storage needs from shopping list data, rather than reactive cooling, which reduces the total energy required while maintaining food quality

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The control unit dynamically adjusts the refrigerated interior temperature based on real-time data from the terminal device, optimizing the balance between food quality preservation and energy consumption

Inventive Principle:
Principle #15Dynamics

3Ease of manufacture

If the refrigerator uses general default settings without location-specific adaptations, then the device is simpler to manufacture, but temperature control precision deteriorates

Engineering Contradiction:
Improvedevice simplicityVSAvoidtemperature control precision
Core Design Contradiction:
Ease of manufactureVSMeasurement precision

Solution Approach 1:

The control unit receives location data, weather data, and climate data from the terminal device, using feedback loops to automatically adjust temperature settings according to environmental conditions while maintaining manufacturing simplicity

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The refrigerator autonomously adapts to local conditions by processing data from the terminal device, eliminating the need for manual configuration or complex hardware modifications while achieving location-specific optimization

Inventive Principle:
Principle #25Self-service

4Measurement precision

If the control unit uses data from a terminal device for automatic control, then temperature control precision is improved, but device complexity increases

Engineering Contradiction:
Improvetemperature control precisionVSAvoidcontrol system complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The terminal device acts as an intermediary, handling data collection, storage, and processing externally, while the control unit in the refrigerator receives processed information through a communication interface, reducing the complexity burden on the appliance itself

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP4417914A1Refrigeration and/or freezer device
Publication Date: 2024.08.21 LIEBHERR HAUSGERATE OCHSENHAUSEN GMBH
  • EP4417914A1 patent drawing
  • EP4417914A1 patent drawing
  • EP4417914A1 patent drawing

AI summary

A refrigerator and/or freezer with a control unit for controlling an element of the appliance, wherein the control unit has an interface designed such that a connection between the control unit and an end device (1) is established, wherein the control unit is designed such that the control of the element is carried out automatically using resources of the end device and/or data that have been stored in the end device by a user and/or by an automatic configuration of the end device.