Door body for refrigerator and assembly method therefor

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Solution Overview

Problem

Existing refrigerator glass doors are limited in displaying large screens due to the need for a border with a glue distance of at least 20 mm, restricting the display range and affecting the display effect.

Innovation Solution

A refrigerator door design featuring a panel with a display screen supported by a bracket and inner/outer door linings, along with a trim strip group, allowing for a large-screen display with minimal or no borders on the sides, achieved through a specific assembly method involving foaming and gluing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of moving object

If a border with glue distance of at least 20 mm is reserved for attaching display screen, then the display screen can be stably attached, but the display range is limited and large-screen display cannot be achieved

Engineering Contradiction:
Improvedisplay rangeVSAvoidglue distance requirement
Core Design Contradiction:
Area of moving objectVSManufacturing precision

Solution Approach 1:

The door body is divided into multiple components: panel, display screen, bracket, inner door lining, outer door lining, and trim strip group. The bracket is further segmented into support ribs that provide distributed support points. This segmentation allows the display screen to be supported at multiple locations without requiring large border areas, enabling full-screen or near-full-screen display while maintaining stable attachment.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A bracket is introduced as an intermediary component between the display screen and the door body structure. The bracket transfers the load and provides support without requiring direct gluing of the display screen to the panel with large borders. This intermediary structure enables the display screen to be attached with minimal or no borders while maintaining attachment stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of manufacture

If display screen is attached directly to panel with large borders, then attachment is simple, but the display effect is affected due to limited display range

Engineering Contradiction:
Improveattachment simplicityVSAvoiddisplay area
Core Design Contradiction:
Ease of manufactureVSArea of moving object

Solution Approach 1:

The bracket serves as an intermediary that simplifies the attachment process while enabling larger display areas. Instead of directly gluing the display screen to the panel (which would require large borders), the bracket provides a structured support system that can be easily assembled and provides stable mounting for the display screen with minimal borders.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support structure is segmented into multiple support ribs within the bracket, providing distributed attachment points. This segmentation allows the display screen to be supported effectively without requiring large border areas, maintaining both ease of manufacture and large display area.

Inventive Principle:
Principle #1Segmentation

3Area of moving object

If minimal or no borders are used for display screen, then large-screen display effect is achieved, but the structural reliability of mounting may be compromised

Engineering Contradiction:
Improvedisplay areaVSAvoidmounting reliability
Core Design Contradiction:
Area of moving objectVSReliability

Solution Approach 1:

The bracket is divided into multiple support ribs that provide distributed support points across the door body. This segmentation allows the display screen to be mounted with minimal or no borders while maintaining mounting reliability through multiple contact points that distribute the mechanical load.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The support structure extends into the third dimension by creating a bracket that protrudes from the door body surface. This dimensional change allows the display screen to be supported from behind without requiring large border areas on the front surface, maintaining both large display area and mounting reliability.

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

Data Source

PatentEP3992554B1Door body for refrigerator and assembly method therefor
Publication Date: 2024.09.18 QINDAO HAIER REFRIGERATOR CO LTD
  • EP3992554B1 patent drawingFigure 1
  • EP3992554B1 patent drawingFigure 2
  • EP3992554B1 patent drawingFigure 3

AI summary

A door (120) of a refrigerator, comprising: a panel (200) having a main body (201) that constitutes a front end of the door (120), a left side (202) and a right side (203); a display screen (300) disposed behind the panel (200) and having, corresponding to the structure of the panel (200), a main body (301), a left side (302) and a right side (303); a main control board (500) for controlling the display screen (300); a bracket (400) disposed behind the display screen (300) to provide support for the display screen (300); an inner door lining (600) disposed behind the bracket (400) to provide support for the bracket (400); an outer door lining (800) disposed behind the inner door lining (600) to constitute a rear end of the door (120); and a trim strip group (700), with a foaming space being confined between the inner door lining (600), the outer door lining (800) and the trim strip group (700). The door of a refrigerator of the present invention achieves a large-screen display effect with no borders or narrow borders on the left and right sides.