Storage device

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Solution Overview

Problem

Existing automatic door-opening devices for large refrigerators require complex installation processes that reduce the thickness of the foamed heat insulation layer, affecting insulation performance and increasing production costs due to the need for pre-punching holes and separate mounting boxes.

Innovation Solution

An automatic door-opening assembly is integrated with a housing that is fixedly connected to the box body, using fasteners and elastic washers for stable attachment, allowing for simplified assembly and reduced production costs, applicable to devices of varying widths.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a mounting box is preset before the box body is foamed and the automatic door-opening device is fixed in the mounting box, then the automatic door-opening device can be securely mounted, but the thickness of the foamed heat insulation layer is reduced and production cost increases

Engineering Contradiction:
Improvemounting stabilityVSAvoidinstallation process complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges the automatic door-opening device directly with the box body structure, eliminating the separate mounting box. The device is integrated into the box body through direct fixation points formed during the foaming process, combining what were previously separate components (mounting box + automatic door-opening device) into a unified structure, thereby simplifying the installation process while maintaining mounting stability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The box body structure is designed to serve multiple functions: it provides the primary containment function and simultaneously integrates the mounting function for the automatic door-opening device. The fixation points in the box body serve both structural support and device mounting purposes, eliminating the need for a dedicated mounting box

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Manufacturing precision

If holes are punched in the outer box in advance to position and mount the automatic door-opening device, then the device can be accurately positioned, but the production process becomes more complex

Engineering Contradiction:
Improvepositioning accuracyVSAvoidproduction process simplicity
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The positioning holes are formed during the foaming process itself, before the actual assembly of the automatic door-opening device. This preliminary action of creating fixation points during manufacturing ensures accurate positioning is built into the structure from the beginning, rather than requiring additional post-manufacturing modification steps

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The positioning and mounting functions are merged into a single integrated process. The same fixation points that provide structural support also serve as positioning features for the automatic door-opening device, eliminating the need for separate positioning holes and mounting operations

Inventive Principle:
Principle #5Merging (Combining)

3Ease of repair

If the automatic door-opening device is mounted separately with a mounting box, then the device can be independently replaced, but the production cost increases

Engineering Contradiction:
Improvedevice replaceabilityVSAvoidproduction cost
Core Design Contradiction:
Ease of repairVSEase of manufacture

Solution Approach 1:

The automatic door-opening device is merged with the box body through direct fixation points, creating a simplified integrated structure. This reduces production costs by eliminating the mounting box and reducing assembly steps, while the device remains replaceable by removing the fixation points and reinstalling the device directly into the box body

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12460465B2Storage device
Publication Date: 2025.11.04 QINDAO HAIER REFRIGERATOR CO LTD
  • US12460465B2 patent drawing
  • US12460465B2 patent drawing
  • US12460465B2 patent drawing

AI summary

Disclosed is a storage device. The storage device comprises a box body, at least one door body and an automatic door-opening assembly for opening the at least one door body. The automatic door-opening assembly comprises a housing and at least one automatic door-opening device. The housing is fixedly connected to the box body. Each automatic door-opening device is at least partially provided on a side, close to the box body, of the housing, and is fixedly connected to the housing, so as to fix the at least one automatic door-opening device. In the storage device of the present invention, the automatic door-opening device is first fixed to the housing to form an integrated assembly, and then the assembly is fixedly connected to the box body.