Refrigerator Door UI Layout to Cut Energy Loss From Door Opening

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Solution Overview

Problem

Existing cooling appliances require users to open doors to access and operate the user interface, leading to unnecessary energy waste and inconvenience.

Innovation Solution

A cooling appliance design featuring a user interface unit positioned on an inclined side portion between the front and inner side surfaces of a door, allowing users to view or operate it without opening the door, thereby reducing energy consumption and enhancing usability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the user interface unit is disposed on the front surface of the door, then the user can easily view and operate the interface, but the user must open the door to access the interface which causes energy waste

Engineering Contradiction:
ImproveUser interface accessibilityVSAvoidEnergy waste from frequent door opening
Core Design Contradiction:
Ease of operationVSLoss of energy

Solution Approach 1:

The user interface unit is relocated from the front surface to the inclined side portion of the door, utilizing the side dimension of the door structure. This spatial repositioning allows the interface to be accessible from the side without requiring door opening, thus resolving the contradiction between ease of operation and energy loss.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The door structure is segmented into distinct functional zones: the front surface for aesthetic purposes, the inclined side portion for user interface placement, and the inner side portion for storage access. This segmentation allows the user interface to be accessed independently from the storage compartment, reducing unnecessary door openings and energy waste.

Inventive Principle:
Principle #1Segmentation

2Reliability

If the user interface unit is disposed on the inner side portion of the door, then the interface is protected from external damage, but the user must open the door to access the interface reducing convenience

Engineering Contradiction:
ImproveUser interface protectionVSAvoidUser interface accessibility
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The user interface unit is positioned on the inclined side portion, which is externally exposed but protected by the door's overall structure. This side positioning provides both protection from internal compartment conditions and external accessibility without requiring door opening, resolving the contradiction between reliability and ease of operation.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Loss of energy

If the user interface unit is disposed on the inclined side portion of the door, then the user can access the interface without opening the door reducing energy waste, but the interface may be less protected from external environmental factors

Engineering Contradiction:
ImproveEnergy waste reductionVSAvoidUser interface environmental protection
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The inclined side portion is designed with a protective structure that shields the user interface unit from external environmental factors before the user interacts with it. The door's side structure acts as a preliminary protective barrier, allowing the interface to be externally accessible while maintaining environmental protection.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3371532B1Cooling appliance
Publication Date: 2019.09.04 BSH HAUSGERATE GMBH
  • EP3371532B1 patent drawingFigure 1~2
  • EP3371532B1 patent drawingFigure 3~4
  • EP3371532B1 patent drawingFigure 5

AI summary

The present invention relates to a user interface unit for a cooling appliance and a cooling appliance. The cooling appliance (100) includes a main body (101), a first door (1) and a second door (2) connected to the main body (101), and a user interface unit (3). The first door (1) has a front surface (11) and an inner side portion (13) facing a side surface of the second door (2). According to embodiments of the present invention, the first door (1) includes an inclined side portion (14) located between the front surface (1 1) and the inner side portion (13) of the first door (1), and the user interface unit (3) is disposed at the inclined side portion (14).