Embedded Refrigerator Hinge Assembly for Multi-Phase Door Motion

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Solution Overview

Problem

Conventional refrigerators have limited opening-closing freedom due to fixed hinge parts, making them difficult to adapt to embedded application scenarios, such as integrated home decor or smart home setups, where flexible door motion tracks are required.

Innovation Solution

A door-opening-assisted embedded refrigerator design featuring a hinge assembly with a switching mechanism that allows the door to rotate in situ and move away from the cabinet, enabling increased opening-closing freedom by using a combination of first and second hinge parts and fitting portions that disengage and re-engage at specific angles, allowing for various motion tracks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed hinge part is used to connect the door and cabinet, then the structure is simple and reliable, but the opening-closing freedom degree of the door is limited

Engineering Contradiction:
Improveopening-closing freedom degreeVSAvoidhinge assembly complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The hinge assembly is divided into multiple independent components: a first hinge part fixed to the cabinet, a second hinge part fixed to the door, and a switching assembly connecting them. This segmentation allows each component to perform specific functions (rotation, translation, mode switching) independently, enabling complex door motion trajectories while maintaining manageable structural complexity

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The hinge assembly transitions from a static fixed connection to a dynamic system where the switching assembly can change the connection mode between the first and second hinge parts. The door can dynamically switch between different motion modes (rotation about first hinge part, translation relative to second hinge part, or combination thereof), adapting to various opening-closing scenarios including embedded installations

Inventive Principle:
Principle #15Dynamics

2Adaptability or versatility

If the door rotates in situ relative to the cabinet during opening, then the motion track is controlled and adapted to embedded scenarios, but the door gasket may experience excessive pressure

Engineering Contradiction:
Improvemotion track controlVSAvoiddoor gasket pressure
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The door opening process is divided into distinct phases: initial rotation phase (door rotates in situ about the first hinge part to disengage from the cabinet front surface), transition phase (switching assembly activates to change connection mode), and final opening phase (door translates relative to the second hinge part). This periodic action sequence ensures the door gasket is gradually released from pressure rather than being forced open, protecting the sealing structure while achieving controlled motion tracks for embedded installations

Inventive Principle:
Principle #19Periodic action

Data Source

PatentUS12055337B2Door-opening-assisted embedded refrigerator
Publication Date: 2024.08.06 QINDAO HAIER REFRIGERATOR CO LTD
  • US12055337B2 patent drawing
  • US12055337B2 patent drawing
  • US12055337B2 patent drawing

AI summary

A door-opening-assisted embedded refrigerator which includes a cabinet, a door and a hinge assembly, the cabinet includes a rear wall and an opening, and a direction from the rear wall towards the opening serves as a first direction; the hinge assembly includes a first hinge part, a second hinge part and a switching assembly; when the door is in an opening process, the first hinge part moves relative to the switching assembly, and then, the second hinge part moves relative to the switching assembly; the hinge assembly drives the door to rotate in situ relative to the cabinet, then drives the door to move away from the cabinet in the first direction, and then drives the door to continuously rotate in situ. The refrigerator can increase an opening-closing freedom degree of the door, and can adapt to different application scenarios.