A cooling device comprising a drawer
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Solution Overview
Problem
Existing cooling devices with drawer mechanisms face structural issues like distortion, breaking, and reduced usable volume due to complex mechanisms, which compromise both functionality and aesthetic appeal.
Innovation Solution
The cooling device employs oppositely fixed pinions on the side walls with toothed racks and a rear-mounted shaft, allowing the drawer to move efficiently without occupying usable space, and features a telescopic movement mechanism and channel-shaped carriers for enhanced usability and aesthetic design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If complex movement mechanisms with rails and wheels are used to enable drawer access, then the drawer can be opened and closed easily, but structural problems such as distortion, breaking and axial escape occur over time, and the usable volume of the compartment decreases
Solution Approach 1:
The patent extracts the movement mechanism components (pinions and shaft) from the visible compartment space and relocates them to the rear side of the mullion. This separation removes the harmful structural elements from the usable volume while preserving their essential function of enabling drawer movement, thereby resolving the contradiction between ease of operation and structural reliability.
Solution Approach 2:
The patent transitions the movement mechanism from occupying horizontal space within the compartment to being positioned in the vertical/rear dimension behind the mullion. By moving the pinions and shaft to this different spatial dimension, the mechanism no longer compromises the compartment's usable volume or aesthetic appearance while maintaining its operational function.
2Reliability
If additional elements are added to the movement mechanism to prevent structural problems, then reliability improves, but the volume of the compartment cannot be efficiently used and aesthetic appearance deteriorates
Solution Approach 1:
The patent extracts the movement mechanism from the compartment interior and relocates it to the rear side of the mullion. This extraction eliminates the need for additional protective elements within the compartment space, preserving usable volume while maintaining structural reliability through the relocated pinion-shaft-rack assembly.
Solution Approach 2:
By relocating the mechanism to the vertical dimension behind the mullion, the patent achieves both reliability and volume efficiency. The pinions and shaft occupy space that would otherwise be structural support, transforming dead space into functional mechanism housing without encroaching on usable compartment volume.
3Ease of repair
If movement mechanism components are placed within the compartment space, then the mechanism is easily accessible for maintenance, but the aesthetic appearance deteriorates and usable volume decreases
Solution Approach 1:
The patent extracts the movement mechanism components from the visible compartment space and relocates them to the rear side of the mullion. This extraction improves aesthetic appearance by hiding the mechanical elements, and the design allows maintenance access through the rear panel or during manufacturing assembly, balancing appearance with serviceability.
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
This configuration maximizes the usable volume of the compartment while maintaining an aesthetically pleasing appearance by hiding the moving components, ensuring effective and flexible use of the cooling device.
Implementation Method 1
at least two toothed racks (10) disposed on the two opposite sides of the base of the drawer (6) and provide the drawer (6) to move on the pinions (8)
Data Source
AI summary
The present invention relates to a cooling device (1) comprising a body (2) having two opposite side walls (3), at least two compartments (4) disposed in the body (2) and wherein the items to be cooled are placed, at least one mullion (5) that extends between the two side walls (3) and divides the compartments (4) from each other, at least one drawer (6) placed into the compartment (4) that remains above the mullion (5), at least one lid (7) that provides the drawer (6) to be pulled outside the body (2) and provides access therein, at least two concentric pinions (8) oppositely fixed to the front side of the side walls (3) rotatably, at least one shaft (9) that provides the pinions (8) to rotate around themselves simultaneously by connecting the pinions (8) to each other and at least two toothed racks (10) disposed on the two opposite sides of the base of the drawer (6) and provide the drawer (6) to move on the pinions (8), and the compartments (4) of which are effectively used.