Heat pump
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Solution Overview
Problem
Conventional air conditioning apparatuses face poor workability due to the need for external mounting of electromagnetic valve units and filters during installation, requiring additional space and complicating the process.
Innovation Solution
A heat pump design where the gas-side and liquid-side stop valves and filters are integrated within the outdoor unit's package, allowing the gas-side filter to extend in an up-down direction and the liquid-side filter to extend horizontally, eliminating the need for external mounting and optimizing space utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If the electromagnetic valve unit and filters are mounted outside the outdoor unit package, then the filters can be easily accessed for maintenance, but the installation workability deteriorates due to the need to ensure additional mounting space on site
Solution Approach 1:
The patent merges the filters and stop valves with the outdoor unit package by providing mounting brackets that attach these components directly to the package structure. This integration eliminates the need for separate external mounting spaces while maintaining component accessibility through designated access points in the package.
2Ease of operation
If the filters and stop valves are integrated inside the outdoor unit package, then the installation workability improves by eliminating external mounting requirements, but the device complexity increases due to internal space constraints and arrangement requirements
Solution Approach 1:
The patent utilizes vertical space within the outdoor unit package by arranging the filters and stop valves in the up-down direction. The mounting brackets are configured to attach components at different heights on the package, effectively using the vertical dimension to accommodate multiple components without increasing the horizontal footprint or external dimensions.
3Volume of stationary object
If the gas-side filter and gas-side stop valve are arranged with overlapping height ranges, then the space utilization improves, but the maintenance accessibility may deteriorate due to potential interference between components
Solution Approach 1:
The patent segments the mounting arrangement by providing separate mounting brackets for the gas-side filter and gas-side stop valve, even when their height ranges overlap. Each component has its own designated mounting position and access path, allowing independent maintenance without requiring disassembly of the other component. The brackets are designed to accommodate overlapping vertical positions while maintaining separate access routes.
Data Source
Figure 1
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Figure 4
AI summary
A gas-side stop valve on the gas refrigerant side and a liquid-side stop valve on the liquid refrigerant side are provided in a package of an outdoor unit. A gas-side filter on the gas refrigerant side is mounted on the indoor unit side relative to the gas-side stop valve and inside the package of the outdoor unit. A liquid-side filter 9 on the liquid refrigerant side is mounted on the indoor unit side relative to the liquid-side stop valve and inside the package of the outdoor unit. As a result, it is not necessary to ensure a place for mounting the gas-side filter and the liquid-side filter at the time of installation on site and the workability can be improved.