Refrigerator Mounting Box Integration for Shorter Display Wiring
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Solution Overview
Problem
Existing refrigerators have complex structures and high costs due to long wire harnesses connecting the main control board and display control assembly, which are difficult to arrange and require additional cover plates, leading to increased complexity and cost.
Innovation Solution
A refrigerator design with a mounting box between the inner liner and casing, featuring a main control board in the mounting box and a display control assembly connected through an outwards through opening, along with a simplified fixing and positioning structure, reducing wire harness length and integrating the display control assembly as a cover plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the main control board is placed in a compressor bin or mounting box with additional cover plates, then the control function is achieved, but the wire harness becomes long and complex, increasing device complexity and cost
Solution Approach 1:
The display control assembly is integrated directly onto the front surface of the mounting box, merging two previously separate components (main control board housing and display control assembly) into a unified structure. This eliminates the need for additional cover plates and reduces wire harness length by placing the display control assembly adjacent to the main control board within the same mounting box structure.
Solution Approach 2:
The mounting box serves multiple functions: it houses the main control board, provides mounting surface for the display control assembly, and acts as the structural housing itself without requiring separate cover plates. This multi-functional design simplifies the overall structure and reduces the number of components needed.
2Reliability
If additional cover plates are used to seal the mounting box, then sealing is achieved, but the structure becomes more complex and cost increases
Solution Approach 1:
The display control assembly is integrated directly onto the front surface of the mounting box, merging two previously separate components (main control board housing and display control assembly) into a unified structure. This eliminates the need for additional cover plates and reduces wire harness length by placing the display control assembly adjacent to the main control board within the same mounting box structure.
Solution Approach 2:
The mounting box serves multiple functions: it houses the main control board, provides mounting surface for the display control assembly, and acts as the structural housing itself without requiring separate cover plates. This multi-functional design simplifies the overall structure and reduces the number of components needed.
3Device complexity
If the display control assembly is integrated into the mounting box structure, then structure is simplified and cost reduced, but positioning precision must be maintained
Solution Approach 1:
Positioning protrusions and positioning grooves are pre-formed during the molding process of the mounting box and display control assembly housing. This preliminary action ensures precise positioning without requiring additional assembly steps or high-precision machining, maintaining manufacturing feasibility while achieving accurate component alignment.
Solution Approach 2:
The positioning mechanism uses elastic deformation of the positioning protrusions to accommodate dimensional variations and assembly tolerances. The elastic material allows the protrusions to flex during assembly and then lock into the positioning grooves, ensuring precise final positioning while compensating for manufacturing parameter variations.
Data Source
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AI summary
The present invention provides a refrigerator, comprising a refrigerator body and a door for opening or closing the refrigerator body. The refrigerator body comprises an inner liner and a housing located on the outer side of the inner liner; the refrigerator also comprises a mounting box disposed between the inner liner and the housing, and a main control board disposed in the mounting box; the mounting box has an opening penetrating outward; and the refrigerator further comprises a display control assembly that is disposed at the opening in a matching manner and electrically connected to the main control board. According to the present invention, the length of a wire harness connecting the display control assembly and the main control board can be reduced, the wire harness is easily arranged and laid out, and the signal delay is low; moreover, the display control assembly is configured as a cover plate of the mounting box, such that the structure is simplified, and the cost is reduced.