Distributed cooling pump controller of central air conditioner

Abstract

The invention discloses a distributed cooling pump controller of a central air conditioner. The controller comprises an STM32F103V676 single-chip microcomputer and a power module, wherein the single-chip microcomputer is connected with an outdoor environment acquisition module through an RS485 interface, the single-chip microcomputer is connected with an isolation CAN circuit through a CAN bus, the single-chip microcomputer is connected with an RS232 circuit and a feedback data acquisition module through data lines, the single-chip microcomputer is connected with a host communication module, a power acquisition module and a signal output control module respectively through SPI buses, and voltage and current signal conversion circuits are arranged in both the signal output control module and the feedback data acquisition module. The controller is low in cost, multiple in function, stable in performance, high in accuracy, long in service life and good in energy-saving effect.

Description

technical field [0001] The invention relates to the field of central air-conditioning control, in particular to a distributed cooling pump controller for central air-conditioning. Background technique [0002] In the central air-conditioning system, the cooling system is related to the working efficiency of the refrigeration main unit. In the past, the temperature on the cooling system pipes was often used for control. Such control exists when the refrigeration main unit is shut down, and the cooling pump cannot predict the shutdown of the air-conditioning main unit. loss. In addition, the existing cooling pump control system is relatively simple in function and cannot fully utilize the energy-saving potential. Contents of the invention [0003] The invention provides a distributed cooling pump controller for a centralized air conditioner, which can collect outdoor temperature and humidity data to adjust the refrigeration host, and also has multiple functions ...

AI Technical Summary

Problems solved by technology

[0002] In the central air-conditioning system, the cooling system is related to the working efficiency of the refrigeration main unit. In the past, the temperature on the cooling system pipes was often used for control. Such control exists when the refrigeration main unit is shut down, and the cooling pump cannot predict the shutdown of the air-conditioning main unit. loss

In addition, the existing cooling pump control system is relatively simple in function and cannot fully utilize the potential of energy saving

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