Refrigerator Drawer Drive Control for Handle-Free Auto Opening
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Solution Overview
Problem
Existing refrigerator designs, particularly bottom freezer types, face challenges in user convenience and accessibility due to the need for users to stoop and pull the freezer compartment door, which can be physically demanding for children, the elderly, and smaller users, and result in inefficient automatic opening systems that require a handle and compromise insulation and space efficiency.
Innovation Solution
A drawer movement apparatus with a drive motor and pinion system integrated into the freezer compartment, allowing for automatic and controlled movement of the storage box using a button input, eliminating the need for a handle and enhancing accessibility by preventing wobbling and ensuring smooth, controlled withdrawal and insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a handle and automatic opening system are provided in the freezer compartment, then user convenience is improved, but insulation performance deteriorates and space efficiency is reduced
Solution Approach 1:
The invention extracts and removes the handle from the freezer compartment door, eliminating the source of insulation leakage. The automatic opening function is achieved through a sensor-based system that detects user approach or intent without requiring a physical handle, thus maintaining user convenience while preserving insulation performance.
Solution Approach 2:
The sensor system serves multiple functions: it detects user intent for opening, triggers the automatic opening mechanism, and can potentially monitor other compartment states. This multi-functional approach replaces the simple mechanical handle with an intelligent system that provides enhanced convenience without compromising insulation.
2Ease of operation
If a handle and automatic opening system are provided in the freezer compartment, then user convenience is improved, but space efficiency deteriorates
Solution Approach 1:
The handle is completely removed from the freezer compartment door structure, eliminating the space it occupies. This extraction frees up valuable door surface area and internal mounting space, improving overall space efficiency while the automatic opening system uses minimal space through compact sensors and actuators.
Solution Approach 2:
The invention employs thin-film sensors and compact actuation mechanisms that occupy minimal space within the door structure. These thin-film technologies allow the automatic opening system to be integrated without adding significant bulk or reducing the usable interior volume of the freezer compartment.
3Device complexity
If the drawer is moved manually by pulling, then simplicity is maintained, but accessibility deteriorates for children, the elderly, and smaller users
Solution Approach 1:
The freezer compartment door performs the opening action automatically without requiring physical effort from the user. The sensor detects when opening is needed and the actuator executes the opening motion, making the system self-serving and eliminating the need for users to pull or lift the heavy door, thus greatly improving accessibility for children, the elderly, and smaller users.
Solution Approach 2:
The manual mechanical pulling action is replaced with an automated electromechanical system. Sensors detect user intent and trigger an electric actuator to move the door, substituting the purely mechanical user-applied force system with an intelligent automated system that requires minimal user input while providing substantial assistance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides enhanced user convenience by allowing automatic and controlled movement of the storage box, reducing physical effort, preserving insulation, and optimizing space, while ensuring safe and efficient operation.
Implementation Method 1
a drive motor and a rotating member such as, for example, a gear may be provided with the appropriate compartment, and an undersurface of the storage box comes into contact with the rotating member, the storage box moves forward and rearward based on a direction of the rotation of the rotating member
Data Source
AI summary
A movement structure for a drawer of a refrigerator is provided. The movement structure may a storage box to be automatically withdrawn from or inserted into a storage compartment of the refrigerator by pressing a button. This automatic movement of the storage box may allow the storage box to be easily withdrawn from and inserted into the storage compartment regardless of a weight of items stored in the storage box.