Air-conditioning device
The air conditioning apparatus addresses the issue of excessive piping by using multiple refrigerant circuits and relay units to perform simultaneous cooling and heating, reducing the number of pipes needed and simplifying installation.
WO2025203422A1 Publication Date: 2025-10-02MITSUBISHI ELECTRIC CORP
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Patent Information
- Application Number
- PCT/JP2024/012631
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-28
- Publication Date
- 2025-10-02
AI Technical Summary
Technical Problem
Existing air conditioning systems require multiple hot and cold water pipes for each outdoor unit, leading to a heavy workload for piping work due to the large number of pipes needed.
Method used
An air conditioning apparatus with a heat source unit, first and second relay units, and load devices connected via refrigerant circuits and connection pipes, allowing simultaneous cooling and heating operations while reducing the number of pipes connected to the heat source unit.
Benefits of technology
Reduces the number of pipes required by utilizing multiple refrigerant circuits and relay units to perform cooling and heating operations, thereby simplifying installation and reducing workload.
✦ Generated by Eureka AI based on patent content.
Abstract
This air-conditioning device comprises a heat source machine, a first relay, a plurality of second relays, a plurality of load devices, and a plurality of connection pipes. The heat source machine comprises a first refrigerant circuit. The first refrigerant circuit has a first intermediate heat exchanger and a heat source-side heat exchanger. The first relay comprises a second refrigerant circuit. The second refrigerant circuit has a second intermediate heat exchanger and a third intermediate heat exchanger. The second relay comprises a third refrigerant circuit. The third refrigerant circuit has a fourth intermediate heat exchanger and a fifth intermediate heat exchanger. A heat transfer medium flows between the heat source machine, the first relay, the second relays, and the load devices via the plurality of connection pipes.
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