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Current loop communication and power supply control circuit of air conditioner and its outdoor unit

A power supply control circuit and current loop communication technology, which is applied in the direction of electrical program control, sequence/logic controller program control, etc., can solve the problems of high standby power and inability to meet low energy consumption requirements, and achieve the effect of reducing power consumption

Active Publication Date: 2017-07-04
GD MIDEA AIR CONDITIONING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a current loop communication and power supply control circuit for the outdoor unit of an air conditioner, which aims to solve the problem that the existing air conditioner has high standby power and cannot meet the low energy consumption requirements when it is in standby due to the power supplied by the outdoor unit

Method used

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  • Current loop communication and power supply control circuit of air conditioner and its outdoor unit
  • Current loop communication and power supply control circuit of air conditioner and its outdoor unit
  • Current loop communication and power supply control circuit of air conditioner and its outdoor unit

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the current loop communication and power supply control circuit 100 includes a current loop communication module 101 and a signal return module 102. The main controller 200 in the outdoor unit passes through the current loop communication module 101, the signal return module 102, the signal line S, the live wire L or Neutral line N, current loop communication circuit 500 in the indoor unit of the air conditioner (internal structure such as figure 1 (Shown) current loop communication with the main control chip 600 of the indoor unit; the first output terminal VCC1 and the second output terminal VCC2 of the power supply circuit 300 in the outdoor unit both output power supply (the first output terminal VCC1 and the second output terminal The power supply output from VCC2 has the same voltage), the main controller 200 and the load in the outdoor unit perform power-on operation according to the power supply output from the second output terminal VCC2...

Embodiment 2

[0091] For the current loop communication and power supply control circuit 100 provided in the first embodiment of the present invention, as figure 1 As shown, when the current loop communication connection line between the indoor unit and the outdoor unit (that is, the signal wire S, the live wire L, or the neutral wire N) is accidentally disconnected, the current communication loop will also be disconnected. The current loop communication module 101 outputs no signal to the receiving terminal RX of the main controller 200, and the current loop wake-up control module 103 controls the second output terminal VCC2 of the power supply circuit 300 to stop outputting power supply, so that the power supply circuit 300 cannot be the main controller If the load in the 200 and the outdoor unit provides power, all the loads in the outdoor unit will be abnormally stopped, which will cause damage to the load in the outdoor unit. To solve this problem, this embodiment is used in the first em...

Embodiment 3

[0106] For the current loop communication and power supply control circuit 100 provided in the first embodiment of the present invention, as figure 1 As shown, when the current loop communication connection line between the indoor unit and the outdoor unit (that is, the signal line S, the live line L, or the neutral line N) is accidentally disconnected, the current communication loop will also be disconnected. The current loop communication module 101 has no signal output, and the current loop wake-up control module 103 will control the second output terminal VCC2 of the power circuit 300 to stop outputting power, so that the power circuit 300 cannot provide power to the main controller 200 and the load in the outdoor unit , All loads in the outdoor unit will be abnormally shut down, which will damage the load in the outdoor unit. To solve this problem, this embodiment is used in the first embodiment of the present invention. figure 1 Based on the current loop communication and ...

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PUM

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Abstract

The invention belongs to the technical field of power supply control, and provides a current loop communication and power supply control circuit of an air conditioner and an outdoor unit thereof. According to the current loop communication and power supply control circuit, after an outdoor unit is powered on, a current loop wakeup control module makes a second output end of a power supply circuit output a power supply to enable a main controller and other loads in the outdoor unit to be powered on and work. After an indoor unit sends a power-off signal to the outdoor unit, the main controller makes the loads in the outdoor unit stop working according to a preset closing mode, and the current loop wakeup control module stops working to enable the second output end of the power supply circuit to stop outputting a power supply, so as to cut off power supply to the main controller and other loads in the outdoor unit. Therefore, the standby power consumption of the outdoor unit is reduced, and the standby power of an air conditioner can be reduced to meet the requirement of low energy consumption.

Description

Technical field [0001] The invention belongs to the technical field of power supply control, and particularly relates to a current loop communication and power supply control circuit of an air conditioner and its outdoor unit. Background technique [0002] At present, as countries around the world are gradually paying attention to environmental protection issues and continuously introducing higher standards of standby energy consumption, all home appliance manufacturers are committed to reducing the standby energy consumption of home appliances. For air conditioners, since they generally include indoor units and outdoor units, the indoor units usually provide power to the outdoor units. If the air conditioner is designed for low-power standby, the indoor unit is usually used to perform the outdoor unit. The way the power is cut off can completely power down the outdoor unit, thereby reducing the standby power consumption of the outdoor unit. [0003] However, if the air conditione...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/04
CPCG05B19/04
Inventor 鲍殿生陈建昌
Owner GD MIDEA AIR CONDITIONING EQUIP CO LTD