Double-temperature-zone refrigerating unit controller and double-temperature-zone temperature control method

Abstract

The invention relates to a double-temperature-zone refrigerating unit controller and a double-temperature-zone temperature control method, the controller comprises a control panel unit and an ECU electric control box unit, the control panel unit comprises a micro-controller A, a power supply module A, a display screen, keys, an RTC clock circuit, a FLASH memory, a USB module and a CAN communication module A, and the RTC clock circuit, the FLASH memory, the USB module and the CAN communication module A are respectively connected with the micro-controller A in a control mode; and the ECU electric control box unit comprises a micro-controller B, and a power supply module B, a fuse fusing detection module, a temperature zone I warehouse temperature detection module, a temperature zone II warehouse temperature detection module, a defrosting relay, a compressor relay, a condensation fan relay, a temperature zone I evaporation fan relay, a temperature zone II evaporation fan relay and a CAN communication module B which are connected with the micro-controller B. According to the refrigerator, intelligent display, setting, control and monitoring of multiple temperature zones can be achieved, the control panel has the functions of warehouse temperature data recording, real-time clock and USB read-write at the same time, the operation condition of the refrigerating unit can be analyzed and monitored conveniently, the ECU electric control box has the fuse fusing fault detection function, and great convenience is brought to later overhaul and maintenance.

Description

technical field [0001] The invention relates to a controller of a refrigerating unit, in particular to a controller of a refrigerating unit with dual temperature zones, belonging to the technical field of refrigerating vehicle control. Background technique [0002] In recent years, with the continuous improvement of people's living standards, the demand for fresh food has continued to increase, and the scale of fresh food e-commerce has also continued to expand. This has brought great challenges to cold chain transportation, and multi-temperature zone refrigerated vehicles have emerged as the times require. born and promoted. [0003] Traditional refrigerating unit controllers often use digital-analog tube display with less display content. When directly used in multi-temperature zone refrigerated vehicles, the user needs to switch between multiple storage temperature displays; and the existing multi-temperature zone The refrigerated truck uses the control panel and the rel...

AI Technical Summary

Problems solved by technology

[0003] Traditional refrigerating unit controllers often use digital-analog tube display with less display content. When directly used in multi-temperature zone refrigerated vehicles, the user needs to switch between multiple storage temperature displays; and the existing multi-temperature zone The refrigerated truck uses the control panel and the relay box of the traditional refrigerated truck. The two are connected by hard wires. The control panel has many wiring harnesses, which brings great inconvenience to the later installation and wiring, and the relay box has no communication and fault detection functions. After the fuse is blown, the user cannot obtain relevant fault information, and cannot take protective measures in time to ensure the safety of the transported goods

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