Communication circuit and method for indoor and outdoor units of an air conditioner
By using the outdoor unit communication line as a bus in the communication circuit of the indoor and outdoor units of the air conditioner and adding a communication switch, time-sharing communication between the indoor and outdoor units is achieved, which solves the problems of many components and high cost and reduces the design cost.
CN116558053BActive Publication Date: 2026-06-26GREE ELECTRIC APPLIANCE INC OF ZHUHAI
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- GREE ELECTRIC APPLIANCE INC OF ZHUHAI
- Filing Date
- 2023-04-25
- Publication Date
- 2026-06-26
AI Technical Summary
Technical Problem
The communication circuit between the indoor and outdoor units of existing multi-split air conditioners has a large number of components, resulting in high design costs.
Method used
The communication line output by the outdoor unit's communication circuit is used as a bus to connect with N indoor unit communication lines. By adding N communication switches and designing different communication switch times, time-sharing communication between the indoor and outdoor units can be achieved.
Benefits of technology
It effectively reduces communication circuit components and lowers design costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN116558053B_ABST
Abstract
The application discloses an indoor and outdoor machine communication circuit of an air conditioner and a communication method thereof. The air conditioner comprises an outdoor machine and multiple indoor machines, the outdoor machine is provided with an outdoor machine controller, each indoor machine is provided with an indoor machine controller, and the indoor and outdoor machine communication circuit comprises an outdoor machine communication circuit connected with the outdoor machine controller, multiple indoor machine communication circuits connected with the multiple indoor machine controllers one by one and connected with the outdoor machine communication circuit through communication lines respectively, and multiple communication switches connected with the outdoor machine controller or the indoor machine controllers and arranged on the communication lines between the outdoor machine communication circuit and each indoor machine communication circuit, and used for controlling the connection and disconnection of the communication lines. The outdoor machine communication circuit output communication line is used as a bus and connected with N indoor machine communication lines, each indoor machine only needs to increase a communication switch, and the indoor machine and the outdoor machine can be communicated by designing different communication switch time, the communication circuit devices are effectively reduced, and the design cost is reduced.
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