Air conditioner
The air conditioner design, which features multiple outdoor heat exchangers and independently controlled air supply fans, solves the problem of reduced heating performance during defrosting operation, achieving efficient defrosting and heating operation and ensuring continuous operation and heat exchange performance of the air conditioner.
CN117704667BActive Publication Date: 2026-06-09LG ELECTRONICS INC
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LG ELECTRONICS INC
- Filing Date
- 2022-12-19
- Publication Date
- 2026-06-09
AI Technical Summary
Technical Problem
Existing air conditioners experience a decrease in heating performance during defrosting operation and cannot evenly distribute the flow between the condenser and evaporator, resulting in a shorter continuous operating time.
Method used
It employs multiple outdoor heat exchangers and independent air supply fan drive control, combined with the design of four-way valves and three-way valves, to achieve simultaneous heating and defrosting operation, and controls the drive of the air supply fan according to the refrigerant temperature.
Benefits of technology
It improves defrosting efficiency and heating performance, shortens defrosting time, and ensures the continuous operation and heat exchange performance of the air conditioner.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117704667B_ABST
Abstract
The present invention provides an air conditioner. It includes: a first compressor; a second compressor; an indoor heat exchanger; a first four-way valve having a first port connected to an outlet side of the first compressor; a first outdoor heat exchanger connected to a second port of the first four-way valve; a first valve device connected to a third port of the first four-way valve; a second four-way valve having a first port connected to an outlet side of the second compressor; a second outdoor heat exchanger connected to a second port of the second four-way valve; a second valve device connected to a third port of the second four-way valve; a first valve pipe connecting a fourth port of the first four-way valve and a fourth port of the second four-way valve; a second valve pipe connecting the first valve device and the second valve device; and a third four-way valve having a first port connected to the first valve pipe, a second port connected to the second valve pipe, a third port connected to inlet sides of the first compressor and the second compressor, and a fourth port connected to the indoor heat exchanger.
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