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Air conditioner communication circuit

A communication circuit and air-conditioning technology, which is applied in the directions of space heating and ventilation, heating and ventilation control systems, heating and ventilation safety systems, etc., and can solve problems such as the installation and use of air conditioners.

Active Publication Date: 2016-01-20
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this communication method is a strong electric communication, which makes the installation and use of the air conditioner have certain safety problems.

Method used

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  • Air conditioner communication circuit
  • Air conditioner communication circuit
  • Air conditioner communication circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment describes an air conditioner communication circuit, including:

[0026] The home bus is used to transmit communication signals between the communication circuit of the indoor unit and the communication circuit of the outdoor unit;

[0027] The indoor unit communication circuit includes an indoor unit home bus transceiver, which is used to send the indoor communication signal generated by the indoor unit microcomputer to the home bus, receive the outdoor communication signal transmitted on the home bus and transmit it to the indoor unit microcomputer;

[0028] The outdoor unit communication circuit includes an outdoor unit home bus transceiver, which is used to send the outdoor communication signal generated by the outdoor unit microcomputer to the home bus, receive the indoor communication signal transmitted on the home bus and transmit it to the outdoor unit microcomputer.

[0029] In this embodiment, the home bus transceiver of the indoor unit includes...

Embodiment 2

[0039] This embodiment includes the content of Embodiment 1, but more specifically, the indoor communication circuit described in this embodiment is as follows figure 1 As shown, the circuit part in the dotted box is the signal identification module. In this embodiment, the outdoor communication circuit is the same as the indoor communication circuit after removing the signal identification module in the dotted line box.

[0040] In this embodiment, the home bus transceiver of the indoor unit and the outdoor unit is composed of a home bus (homebus) drive and receiving chip MM1007, which complies with the homebus communication specification and can receive and send data signals. Such as figure 1 and Figure 2a As shown, the chip MM1007 includes the first microcomputer signal input pin INA and the second microcomputer signal input pin INB respectively connected to the two signal output ports of the microcomputer—the microcomputer 5 port and the microcomputer 4 port, and the co...

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PUM

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Abstract

The invention discloses a communication circuit of an air conditioner. The communication circuit comprises a home bus, an indoor unit communication circuit and an outdoor unit communication circuit, wherein the indoor communication circuit comprises an indoor unit home bus transceiver used for an indoor communication signal generated by an indoor unit microcomputer to the home bus, receiving an outdoor communication signal transmitted by the home bus and transmitting the outdoor communication signal to the indoor unit microcomputer; the outdoor unit communication circuit comprises an outdoor unit home bus transceiver used for sending the outdoor communication signal generated by an outdoor unit microcomputer to the home bus, receiving the indoor communication signal transmitted on the home bus and transmitting the indoor communication signal to the outdoor unit microcomputer. The communication circuit utilizes light current communication to replace heavy current communication of an existing air conditioner, so that potential safety hazards in the assembly and use processes of the air conditioner are reduced.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to an air conditioner communication circuit. Background technique [0002] At present, the communication between the internal and external units of the air conditioner adopts an AC strong current 220 volt carrier communication circuit. The optocoupler and the two optocouplers of the air conditioner external unit are turned on and off to form a communication signal. However, this communication method is a strong electric communication, so there are certain safety problems in the installation and use of the air conditioner. Contents of the invention [0003] (1) Technical problems to be solved [0004] The technical problem to be solved by the present invention is to provide an air conditioner communication circuit to achieve the purpose of using weak current communication to replace the strong current communication of the existing air conditioner, and to reduce safety ha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/00
Inventor 寇秋莉董金盛范纪青
Owner HAIER GRP CORP