Refrigerator Drawer Side Cover Module with Snap-Lock Assembly

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Solution Overview

Problem

Conventional refrigerator drawers with detachable outside covers require complex assembly and disassembly processes, often involving screws and welding, which are time-consuming and can damage parts, and lack protection for edges, leading to scratching and chipping during manipulation.

Innovation Solution

A refrigerator design where the outside cover is easily assembled and disassembled by cross-inserting a locking end into a fixing end on the inside cover, eliminating the need for separate fixing components and incorporating a scratch prevention member to protect edges from damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the side plate is fixed to the side drawer supporting frame by welding or screw fastening, then the assembly is strong and reliable, but the disassembly process is complex and time-consuming

Engineering Contradiction:
Improveassembly strengthVSAvoiddisassembly time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The side plate is divided into multiple detachable sections with locking mechanisms, allowing the cover to be segmented into removable parts that can be quickly assembled and disassembled without welding or screws, directly resolving the contradiction between assembly strength and disassembly time

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A locking mechanism acts as an intermediary between the side plate and supporting frame, providing strong connection during use but enabling quick release during disassembly, thus resolving the contradiction between reliable fixation and easy disassembly

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If the side plate is assembled by welding or screw fastening, then the connection is secure, but other parts may be damaged during disassembly

Engineering Contradiction:
Improveconnection securityVSAvoidpart damage
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The locking mechanism is designed to self-release without requiring forceful removal or damage to surrounding parts, allowing secure connection during use and clean disassembly without harm to other components, resolving the contradiction between connection security and part protection

Inventive Principle:
Principle #25Self-service

3Device complexity

If a separate protection member is not provided at the edge of the metal side plate, then the structure is simple, but scratching and chipping damage occurs during assembly and disassembly

Engineering Contradiction:
Improvestructure simplicityVSAvoidedge damage
Core Design Contradiction:
Device complexityVSObject-affected harmful factors

Solution Approach 1:

The protection function is merged into the locking mechanism itself, where the locking components serve dual purposes of securing the assembly and protecting edges from damage, eliminating the need for separate protection members while maintaining structural integrity

Inventive Principle:
Principle #5Merging (Combining)

4Ease of operation

If the outside cover is detached by removing welding portions or screws, then the cover can be separated, but a long time is required and work efficiency is reduced

Engineering Contradiction:
Improvecover detachabilityVSAvoidassembly efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The locking mechanism transitions from static permanent connections (welding) to dynamic reversible connections that can be quickly engaged and disengaged, enabling the outside cover to be easily detached and reattached without time-consuming operations, directly improving assembly efficiency

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP3764043B1Refrigerator having drawer
Publication Date: 2023.05.03 LG ELECTRONICS INC
  • EP3764043B1 patent drawingFigure 1~2
  • EP3764043B1 patent drawingFigure 3
  • EP3764043B1 patent drawingFigure 4~5

AI summary

The present invention relates to a refrigerator having a drawer (200), the refrigerator comprising: a cabinet (100) having a storage chamber (3), the cabinet being open in frontward direction; the drawer (200) having a front panel (210) and a storage body (222), the drawer (200) is movable forward and rearward for opening and closing a portion of the storage chamber (3), wherein the storage body (222) is provided at a rear side of the front panel (210) and received in the storage chamber (3); and at least one side cover module (250) comprising an inside cover (252) and an outside cover (282), the inside cover (252) is provided at an inside surface of the storage body (222) and protecting the inside surface of the storage body (222), and the outside cover (282) is provided at an outside surface of the storage body (222) and protecting the outside surface of the storage body (222).