Refrigerator Dispenser Cover Mechanism for Clean Front Access
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Solution Overview
Problem
Conventional refrigerators with door-mounted dispensers for water and ice extraction compromise the front appearance and allow foreign materials like dust to enter the extraction ports due to the open design of the dispenser.
Innovation Solution
A dispenser system with a push button, pivotable cover, and lever mechanism that allows extraction without opening the door, featuring a hooking unit for secure closure and an elastic unit for automatic return, ensuring the front appearance remains intact and preventing dust entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the dispenser front is always open to allow easy extraction of water or ice, then the ease of operation is improved, but the front appearance is degraded and foreign materials can enter the extraction port
Solution Approach 1:
The cover is designed to be movable rather than fixed, allowing it to dynamically open during extraction and close during non-use periods. This dynamic behavior enables the system to adapt between two states: open for ease of operation and closed for aesthetic appearance and contamination prevention.
Solution Approach 2:
The dispenser is divided into separate functional components: the extraction port, the cover, and the lever mechanism. This segmentation allows the cover to independently control access to the extraction port, enabling it to remain closed for aesthetics while still permitting controlled opening for extraction operations.
2Shape
If the cover is always closed to maintain front appearance and prevent dust entry, then the aesthetic appearance and sanitation are improved, but the ease of operation for extraction is degraded
Solution Approach 1:
The lever acts as an intermediary mechanism that mediates between the user's extraction need and the closed cover state. By pushing the lever, the user can temporarily open the cover without permanently compromising the closed aesthetic appearance, thus resolving the contradiction between maintaining appearance and enabling operation.
Solution Approach 2:
The elastic unit provides automatic return functionality, causing the cover to automatically close after extraction without requiring manual intervention. This self-service mechanism ensures the cover returns to its aesthetically pleasing closed state, maintaining the front appearance while still allowing easy extraction during use.
3Object-affected harmful factors
If the cover is made movable to enable opening and closing, then the ability to maintain appearance and prevent contamination is improved, but the device complexity increases
Solution Approach 1:
The elastic unit provides automatic return functionality, causing the cover to automatically close after extraction without requiring manual intervention. This self-service mechanism ensures the cover returns to its aesthetically pleasing closed state, maintaining the front appearance while still allowing easy extraction during use.
Solution Approach 2:
The lever acts as an intermediary mechanism that mediates between the user's extraction need and the closed cover state. By pushing the lever, the user can temporarily open the cover without permanently compromising the closed aesthetic appearance, thus resolving the contradiction between maintaining appearance and enabling operation.
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
Enables convenient extraction of water or ice without opening the door, maintaining a clean and aesthetically pleasing front while preventing foreign materials from entering the extraction ports.
Implementation Method 1
an elastic unit causing the lever to return to an original state when force applied to the lever in a pushed state is removed
Data Source
AI summary
A refrigerator which includes a dispenser installed at a door so as to enable a user to extract water or ice without opening a door. The dispenser includes a case forming an extraction section which is a space through which the desired object is extracted, a push button installed to the case and causing the desired object to be extracted by push operation, a cover having an opening formed by cutting out part thereof and pivotably installed to the case so as to open and close the extraction section, and a lever hinged to the cover so as to open and close the opening and pushing the push button while the opening is open. Therefore, a front appearance of the refrigerator is beautifully maintained. Further, the refrigerator prevents foreign materials such as dust from entering extraction ports through which the desired objects are extracted.