Heat Source Unit Cable Separation Design
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Solution Overview
Problem
In heat source units, such as multi-type air conditioners, the power supply cable and communication cable often come into contact, leading to noise interference that can cause device malfunctions, as they are inserted through shared notches in the electric component box, compromising the separation of these cables.
Innovation Solution
A heat source unit design featuring separate power supply and communication cable holes in the housing, with a metallic electric cable cover member that partitions the area to prevent contact between the cables, ensuring they are kept separate from the electric component box to the housing, using a partition plate to segregate the regions for each cable.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the power supply cable and communication cable are inserted through the same wiring window and lead up to the electric component box together, then the installation process is simplified, but the cables come into contact with each other causing noise interference and device malfunction
Solution Approach 1:
The patent divides the cable insertion path into separate segments by providing distinct wiring windows for power supply cables and communication cables. This segmentation prevents the cables from coming into contact during installation and operation, eliminating noise interference while maintaining a systematic installation approach
Solution Approach 2:
The patent introduces an intermediary structure (separate wiring windows and cable routing paths) between the power supply cable and communication cable. This intermediary arrangement acts as a physical barrier that prevents direct contact between the cables, thereby eliminating noise interference without complicating the installation process
2Reliability
If separate notches are provided for power supply cable and communication cable in the electric component box, then cable contact is prevented, but the device complexity increases
Solution Approach 1:
The patent applies universality by making the housing structure serve multiple functions: the separate wiring windows not only prevent cable contact but also provide organized cable routing paths and maintain structural integrity. This multi-functional design achieves cable separation without significantly increasing device complexity
Solution Approach 2:
The patent merges the cable separation function with the housing structure itself, rather than adding separate complex isolation mechanisms. The wiring window design combines structural support, cable routing, and separation functions into a unified solution that minimizes additional complexity
Data Source
AI summary
According to one embodiment, a heat source unit apparatus includes an electric component box that is disposed in a housing, a power supply cable and a communication cable being inserted into the electric component box from an outside of the housing, a metallic electric cable cover member that is interposed between the electric component box and the housing, a power supply cable hole and a communication cable hole being made in one side surface of the housing, the power supply cable and the communication cable being covered with a cable cover member, and a partition plate that is provided in the cable cover member to partition the electric cable cover member into a region where the power supply cable is accommodated and a region where the communication cable is accommodated.