Refrigerator
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Solution Overview
Problem
Refrigerator electric wire cables connected to control panels are prone to damage due to interference when the drawer-type freezing chamber door is slid open or closed, as they are not adequately protected from surrounding structures.
Innovation Solution
A protective structure is implemented, including sliding frames, fixed frames, and an electric wire cable housing that guides and secures the cable, preventing damage by allowing it to form a loop and using a push member to retract the cable into a receiving space when the door is drawn, and an opening and closing detection unit to manage the cable's movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the drawer type door is made slidable for easy operation, then the ease of operation is improved, but the electric wire cable is damaged due to interference with surrounding structures
Solution Approach 1:
The electric wire cable is nested within the receiving space defined by the fixed frame, which is integrated into the drawer type door structure. The cable housing is coupled to the sliding frame, creating a nested arrangement where the cable is protected inside the door assembly, preventing exposure to external interference during sliding operation.
Solution Approach 2:
The receiving space and cable housing act as intermediary structures between the electric wire cable and the surrounding environment. These intermediary elements provide a protected pathway for the cable, isolating it from potential damage sources while allowing the door to slide freely.
2Ease of operation
If the electric wire cable is exposed for connection to the control panel, then the ease of connection is improved, but the cable is prone to damage from interference with surrounding structures
Solution Approach 1:
The cable is pre-routed through the guide hole and into the receiving space before the door reaches its fully extended position. The push member is pre-positioned to guide the cable into the housing, ensuring the cable is already protected before any potential interference occurs during door operation.
Solution Approach 2:
The guide hole and push member serve as intermediary mechanisms that facilitate cable transition from an exposed state to a protected state within the receiving space, enabling connection while minimizing exposure time to harmful factors.
3Adaptability or versatility
If the cable is allowed to move freely during door sliding, then the adaptability is improved, but the cable forms loops and becomes vulnerable to damage
Solution Approach 1:
The cable arrangement is designed to be dynamic, allowing the cable to move and form loops within the constrained receiving space as the door slides. The push member dynamically pushes the cable into the housing as needed, adapting to the changing position of the door while maintaining cable protection.
Solution Approach 2:
The cable is guided to move in a specific three-dimensional path through the guide hole and into the receiving space, utilizing spatial dimensions to accommodate cable movement while preventing harmful exposure. The loop formation is contained within the vertical and horizontal boundaries of the receiving space.
Data Source
AI summary
A refrigerator includes a storage chamber having an opening; a drawer type door to open or close the opening; a display positioned at the drawer type door; a first connector provided at a sidewall of the storage chamber; a second connector provided at the drawer type door and being electrically connected to the display; a first frame coupled to an inner wall of the storage chamber, the first frame to cover the first connector; a second frame coupled to the drawer type door, the second frame to support a storage box; and a wire electrically connected between the first connector and the second connector. The first frame has a first accommodating part to accommodate one portion of the wire and the second frame has a second accommodating part to accommodate another portion of the wire.