Refrigerant Distribution Unit Fixation for Easier AC Maintenance
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Solution Overview
Problem
The existing refrigerant distribution units for air conditioners face inefficiencies in maintenance due to the lack of fixation of the pipe unit to the main body, causing the unit to flex downward when the lower case is removed, making it impossible to perform maintenance on peripheral parts without disassembling the entire unit.
Innovation Solution
The refrigerant distribution unit is designed with an upper and lower seal case that includes edge portions for engaging with pipe holders and hanging brackets, allowing the pipe unit to be fixed and maintained without disassembling the main body, enabling maintenance on peripheral parts while the unit is still mounted.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pipe unit is not fixed to the main body, then the maintenance complexity is reduced (easier to assemble), but the pipe unit flexes downward when the lower case is removed, making maintenance impossible without disassembling the entire unit
Solution Approach 1:
The case is divided into an upper case and a lower case that can be separated. The pipe unit is fixed to the upper case, which remains in place during maintenance, while the lower case can be removed independently to provide access to the pipe unit for maintenance activities.
Solution Approach 2:
The pipe unit is pre-fixed to the upper case through the pipe holder and hanging bracket structure before the lower case is attached. This preliminary fixation ensures that when maintenance is needed, the pipe unit is already in the correct position and does not need to be repositioned or supported during the maintenance process.
2Ease of repair
If the pipe unit is fixed to the main body using a pipe holder and hanging bracket, then maintenance on peripheral parts can be performed without disassembling the unit, but the device complexity increases
Solution Approach 1:
The fixation mechanism is segmented into distinct components: a pipe holder that attaches to the pipe unit and a hanging bracket that connects to the upper case. This segmentation allows for simple, modular installation and maintenance of the fixation system without requiring complex assembly procedures.
Solution Approach 2:
The pipe holder acts as an intermediary component between the pipe unit and the hanging bracket. It provides a simple interface that connects the pipe unit to the fixation structure, enabling maintenance access while adding minimal complexity to the overall system.
3Ease of operation
If the lower case is removed for maintenance, then access to the pipe unit is provided, but the pipe unit flexes downward due to its own weight, making maintenance impossible
Solution Approach 1:
The pipe unit is pre-fixed to the upper case through the pipe holder and hanging bracket structure before the lower case is attached. This preliminary fixation ensures that when maintenance is needed, the pipe unit is already in the correct position and does not need to be repositioned or supported during the maintenance process.
Solution Approach 2:
The hanging bracket structure provides mechanical support that counteracts the weight of the pipe unit. By anchoring the pipe unit to the upper case through this bracket, the system compensates for the gravitational force that would otherwise cause the pipe unit to flex downward when the lower case is removed.
Data Source
AI summary
A refrigerant distribution unit for an air conditioner, includes: a pipe unit for distributing a refrigerant from a refrigerant pipe on an outdoor unit to branch refrigerant pipes on indoor units; and a main body including: upper and lower seal case which include first edge portions around the upper seal case and second edge portions around the lower seal case, and engage the second edge portions with the first edge portions for sealing an inside of the first and second seal cases to store the pipe unit; upper and lower insulator cases for covering the upper and lower seal cases; and upper and lower case constituting a contour of the refrigerant distribution unit. The pipe unit is fixed to a pipe mounting portion of the upper seal case using a pipe holder and a pipe hanging bracket.