Movable Carrier Tray for Cooling Device Control Unit Servicing
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Solution Overview
Problem
Existing cooling devices face challenges in facilitating easy servicing and assembly of control units, which are often exposed to external factors and require complex fixation methods.
Innovation Solution
A movable carrier tray system is introduced, allowing the control unit to be positioned on an outer wall surface, with a movable carrier tray that can transition between closed and open positions, featuring connection elements and locking mechanisms for secure positioning and easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the control unit is fixedly positioned on the outer wall surface using complex fixation methods, then the control unit is securely attached, but the servicing and assembly process becomes complex and time-consuming
Solution Approach 1:
The control unit assembly is segmented into a control unit housing and a separate carrier tray. The carrier tray is further divided into a tray body and a cover, allowing independent access to the control unit. This segmentation enables servicing without dismantling the entire housing, reducing assembly complexity and time while maintaining secure attachment through the tray structure.
Solution Approach 2:
The carrier tray is designed with movable characteristics, allowing it to be easily inserted into and removed from the housing. The tray includes guide openings and connection protrusions that enable smooth, guided movement during assembly and disassembly. This dynamic design simplifies servicing operations while ensuring proper positioning and secure attachment when installed.
2Ease of operation
If the control unit is exposed on the outer wall surface, then access for control is improved, but the control unit is vulnerable to external factors
Solution Approach 1:
The control unit is nested within a multi-layer protective structure consisting of the carrier tray body and a separate cover. The tray is inserted into the housing, creating nested layers of protection. This nested design shields the control unit from external factors like dust, moisture, and physical damage while maintaining accessibility through the tray's removable design and control openings.
Solution Approach 2:
The carrier tray acts as an intermediary element between the control unit and the external environment. It provides a protective interface that allows control functions to remain accessible while isolating the control unit from harmful external factors. The tray's design includes control openings and handle portions that mediate between user access needs and protection requirements.
3Reliability
If fixing screws are used to attach the control unit, then secure attachment is achieved, but material cost increases and assembly time increases
Solution Approach 1:
The attachment system is segmented into integrated connection elements: guide openings in the tray body and corresponding connection protrusions on the cover. These elements work together as a unified attachment mechanism that eliminates the need for separate fixing screws. The segmented design provides secure attachment through the interlocking geometry of the guide openings and protrusions, while reducing assembly time by eliminating multiple screw-fastening operations.
Solution Approach 2:
The traditional mechanical screw-fastening system is replaced with a guided insertion system using guide openings and connection protrusions. This substitution maintains attachment security through precise geometric fitting and guided alignment, while dramatically reducing assembly time by eliminating the need for screwdrivers, multiple fastening steps, and alignment adjustments required by screw-based systems.
Data Source
AI summary
A cooling device has a body defining a storage space and at least one control unit for controlling an operation of the cooling device, and provided on an outer wall surface of the body facing outside. The cooling device further contains at least one carrier tray whereon the control unit is positioned, and wherein the carrier tray is configured to be movable between a closed position in which the carrier tray is positioned on the outer wall surface, and an open position in which the carrier tray at least partially extends outwardly from the body.