Refrigerator appliances with movable individually temperature control bins

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Solution Overview

Problem

Traditional refrigerators with only two temperature compartments fail to provide adequate storage options for the diverse optimal storage conditions of various food products, as fresh produce and meats require different storage parameters.

Innovation Solution

The implementation of movable bins with individual temperature control, powered by inductive power transfer and equipped with thermoelectric heat pumps, which are controlled by temperature sensors and adjustable resistance devices to maintain setpoint temperatures, allowing for customizable storage conditions within the refrigerator.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If traditional two-compartment refrigerator design is used, then device complexity is reduced, but adaptability to different food storage needs deteriorates

Engineering Contradiction:
Improvestorage options for different food productsVSAvoidnumber of temperature control zones
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The refrigerator interior is segmented into multiple movable bins, each capable of independent temperature control. These bins can be positioned in different locations and adjusted to different temperatures, allowing different food types to be stored in optimal conditions without requiring a fully complex multi-zone refrigerator system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The bins are designed to be movable rather than fixed, allowing users to dynamically reposition them between compartments based on storage needs. The temperature control is also dynamic, with adjustable setpoints for each bin, enabling adaptability without permanent structural complexity.

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If inductive power transfer is implemented, then ease of operation is improved, but use of energy increases

Engineering Contradiction:
Improvepowering mechanism for binsVSAvoidenergy consumption for inductive power transfer
Core Design Contradiction:
Ease of operationVSUse of energy by moving object

Solution Approach 1:

The inductive power transfer system automatically activates when a bin is placed in a compartment with a transmitter coil. The system self-regulates power transfer based on the presence and position of bins, eliminating the need for manual electrical connections or switches while minimizing energy waste through automatic disengagement when bins are removed.

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 provides enhanced storage options by allowing users to maintain optimal temperatures for different food items, extending their freshness and uniformity, and enabling the accommodation of a wide range of food products within the refrigerator.

Implementation Method 1

Each of the one or more bins includes a receiver coil. The receiver coil receives power from one of the one or more transmitter coils through inductive power transfer.

Methodology Applied
Scientific EffectInductive power transfer: Electromagnetic Induction

Implementation Method 2

Each of the one or more bins includes a thermoelectric heat pump. The thermoelectric heat pump receives power from the receiver coil. The operation of the thermoelectric heat pump is controlled based on the temperature in the bin storage volume read by the temperature sensor, such that the temperature in the bin storage volume is maintained at a setpoint temperature associated with such bin.

Methodology Applied
Scientific EffectThermoelectric effect: Peltier Effect

Implementation Method 3

Each of the one or more bins includes a temperature sensor positioned to read a temperature in the bin storage volume.

Methodology Applied
Scientific EffectTemperature sensing: Thermistor

Data Source

PatentUS9879889B2Refrigerator appliances with movable individually temperature control bins
Publication Date: 2018.01.30 HAIER US APPLIANCE SOLUTIONS INC
  • US9879889B2 patent drawing
  • US9879889B2 patent drawing
  • US9879889B2 patent drawing

AI summary

Refrigerator appliance with movable individually temperature controlled bins are provided. One example refrigerator appliance includes one or more transmitter coils and one or more bins. Each of the one or more bins includes a temperature sensor positioned to read a temperature in a bin storage volume. Each of the one or more bins includes a receiver coil. The receiver coil receives power from one of the one or more transmitter coils through inductive power transfer. Each of the one or more bins includes a thermoelectric heat pump. The thermoelectric heat pump receives power from the receiver coil. The operation of the thermoelectric heat pump is controlled based on the temperature in the bin storage volume read by the temperature sensor, such that the temperature in the bin storage volume is maintained at a setpoint temperature associated with such bin.