refrigerator
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Solution Overview
Problem
Traditional refrigerators with a lifting storeroom mechanism lack flexibility in lifting speed and weight distribution, providing limited user convenience due to fixed lifting characteristics.
Innovation Solution
A refrigerator design that incorporates a slide device with a lift mechanism, including a guide and an auxiliary link, allowing variable lifting speeds and weights by adjusting the slope angle and length of the guide, and utilizing a lever principle to reduce the force required for lifting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an X link is used to lift the storeroom in connection with door pull-out, then the storeroom can be lifted conveniently, but the lifting method lacks flexibility and the user feels constant weight throughout the lifting process
Solution Approach 1:
The patent replaces the fixed X link mechanism with a dynamic guide mechanism that allows the storeroom to follow a predetermined lifting trajectory. The guide includes a guide rail and guide roller that enable variable lifting speed and weight distribution throughout the lifting process, providing adaptability while maintaining ease of operation.
2Ease of operation
If an X link mechanism is used for lifting, then the storeroom lifting function is achieved, but the lifting speed remains constant and cannot be adjusted
Solution Approach 1:
The guide mechanism with guide rail and guide roller enables dynamic control of lifting speed. The predetermined lifting trajectory allows the storeroom to be lifted at variable speeds depending on the position, providing speed variability while maintaining the lifting function.
Solution Approach 2:
The patent changes the lifting parameters (speed, weight distribution) by designing the guide trajectory with varying slope angles. The guide rail is designed such that the lifting speed and force required vary throughout the lifting process, allowing parameter changes while achieving the lifting function.
3Device complexity
If a fixed X link structure is used, then the lifting mechanism is simple, but the user must apply constant force throughout the lifting process
Solution Approach 1:
The guide mechanism changes the force distribution parameter throughout the lifting process. By designing the guide rail with varying geometry, the patent enables the user to apply less force at certain positions and more at others, improving ease of operation while maintaining reasonable mechanism complexity.
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
Enhances user convenience by providing flexible lifting options, reducing the perceived weight and effort needed to operate the storeroom, and ensuring stability during lifting and lowering.
Implementation Method 1
utilizing a lever principle to reduce the force required for lifting
Data Source
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AI summary
A refrigerator is provided. The refrigerator includes a storeroom lifted when the storeroom is pulled out and giving a degree of freedom to a lifting method. The refrigerator includes a main body, a door arranged to be pulled out from the main body, a storeroom arranged to be pulled out from the main body along with the door, and a lift device arranged to lift or lower the storeroom in connection with pulling-out or pushing-in of the door, wherein the lift device includes a guide including a portion sloping upward or downward in a pull-out direction of the storeroom, and a guidee guided by the guide so that the storeroom is lifted when the guidee is moved along the guide.