Heat Pump Compressor Module With Internal Channels for Noise Suppression
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Solution Overview
Problem
Conventional compressor modules in heat pump cycles fail to adequately suppress noise without compromising the productivity of the system, as noise leaks through gaps between through holes and piping, and sealing these gaps with soundproofing members can degrade system performance.
Innovation Solution
A compressor module design that eliminates the need for through holes by routing refrigerant flow through internal channels, preventing noise leakage and avoiding the use of soundproofing seals, while using vibration insulating members to manage noise and heat effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If through holes are used in the housing for piping connection, then ease of operation is improved, but noise leakage occurs through gaps between through holes and piping
Solution Approach 1:
The housing is divided into two types of openings: through holes for easy piping connection and non-through holes that prevent noise leakage. This segmentation allows the system to simultaneously achieve ease of operation and noise suppression by routing pipes through different types of openings based on their functional requirements.
Solution Approach 2:
A seal member is introduced as an intermediary element between the through hole and the piping. This seal member fills the gap between the pipe outer surface and the through hole, preventing noise from the compressor chamber from leaking outward while maintaining the ease of piping connection through through holes.
2Object-generated harmful factors
If soundproofing members are used to seal gaps, then noise suppression is improved, but system performance degrades
Solution Approach 1:
The housing openings are segmented into through holes and non-through holes. Non-through holes prevent noise leakage by design without requiring soundproofing members that could degrade system performance. This segmentation achieves noise suppression while maintaining system reliability.
Solution Approach 2:
The soundproofing function is extracted from the piping connection system. Instead of using soundproofing members in through holes, the patent uses non-through holes specifically for noise suppression, separating the noise control function from the piping connection function and avoiding performance degradation.
3Ease of operation
If all openings are made as through holes for easy connection, then ease of operation is improved, but noise from compressor leaks to outside
Solution Approach 1:
The housing openings are segmented into through holes for piping connection and non-through holes for noise suppression. This allows the system to provide easy piping connection where needed while preventing compressor noise from leaking to the outside through non-through holes.
Solution Approach 2:
Different types of openings are assigned to different locations on the housing based on local requirements. Through holes are placed where piping connection is prioritized, while non-through holes are placed where noise suppression is prioritized, giving each location its appropriate quality.
Data Source
AI summary
A compressor module for a heat pump cycle includes a compressor, a channel forming member configured to define therein a plurality of internal refrigerant channels through which refrigerant flows, and a cover member configured to define a housing space of a housing, which houses the compressor, together with the channel forming member. The housing is provided therein with a compressor-side inlet and a compressor-side outlet communicating to the internal refrigerant channels, and is provided with an outside connection port outside of the housing space and communicating to the internal refrigerant channels. The compressor has a refrigerant discharge port coupled to the compressor-side inlet, and a refrigerant suction port coupled to the compressor-side outlet. The outside connection port is connected to inflow and outflow sides of external component devices disposed outside the housing space, in component devices of the heat pump cycle.