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Communication circuit and air conditioner

A communication circuit and communication technology, applied in air conditioning systems, printed circuits connected with non-printed electrical components, electrical components, etc., can solve the problem of low reliability of communication circuits

Pending Publication Date: 2021-02-02
QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a communication circuit to solve the technical problem of low reliability of the communication circuit in the prior art

Method used

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  • Communication circuit and air conditioner
  • Communication circuit and air conditioner
  • Communication circuit and air conditioner

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this applica...

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Abstract

The invention discloses a communication circuit and an air conditioner. The communication circuit comprises a main control substrate and a wire controller, wherein the main control substrate further comprises a power supply loop, a differential mode inductor, a communication loop and a common mode inductor; the common mode inductor is a chip inductor; the turning frequency of the common mode inductor is determined according to the preset shortest length of a first communication line and a second communication line; communication interference can be effectively suppressed even if the communication lines are relatively short; and manual insertion packaging is changed into chip miniaturization packaging, so that the layout flexibility and production convenience of a PCB substrate are greatlyimproved.

Description

technical field [0001] The present application relates to the field of air conditioner control, more specifically, to a communication circuit and an air conditioner. Background technique [0002] The communication distance between the indoor unit and the wired controller can be up to 600m. The maximum communication distance between the indoor unit and the outdoor unit can reach 1200m, because the distance of the communication line is long, and the EMC (Electro Magnetic Compatibility, electromagnetic compatibility) interference is very serious. [0003] The differential mode inductor is a kind of inductor with large inductance to the differential mode high frequency interference, which can be used to filter out the differential mode high frequency interference; the common mode inductor can be used to filter out the common mode electromagnetic interference on the signal line. In the prior art, interference is suppressed by setting filters including differential mode inductors...

Claims

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Application Information

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IPC IPC(8): F24F11/32F24F11/56F24F11/64F24F11/88F24F5/00H05K1/18H04B15/00
CPCF24F11/32F24F11/56F24F11/64F24F11/88F24F5/001H05K1/18H04B15/00
Inventor 陶淦何成军林文涛任兆亭
Owner QINGDAO HISENSE HITACHI AIR CONDITIONING SYST
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