Control circuit of industrial oil cooler

By designing the control circuits for the power supply module, controller module, and IPM module, the problem of insufficient temperature control precision in industrial oil coolers was solved, achieving precise control of the variable frequency compressor and improving the temperature control accuracy and stability of the oil cooler.

CN224287387UActive Publication Date: 2026-05-26GUANGDONG CHICO ELECTRONIC INC +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG CHICO ELECTRONIC INC
Filing Date
2025-08-13
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing technologies for industrial oil coolers lack the precision and stability of constant temperature control, making it difficult to achieve precise control of variable frequency compressors.

Method used

A control circuit comprising a power supply module, a controller module, and an IPM module is designed to achieve precise control of the variable frequency compressor by detecting data from various external parameters. The power supply module converts AC power to DC power and provides a stable power supply. The controller module performs various functional controls and signal outputs. The IPM module drives the variable frequency compressor according to the PWM signal.

Benefits of technology

It achieves precise control of the variable frequency compressor, improves the accuracy and stability of the constant temperature control of the oil cooler, and meets the temperature control requirements within 0.2℃.

✦ Generated by Eureka AI based on patent content.

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Abstract

This application provides a control circuit for an industrial oil cooler, including: a power supply module, a controller module, and an IPM module; the power supply module is used to convert AC power to DC power, and the power supply circuit is connected to the controller circuit and the IPM circuit; the controller module includes a first controller and a second controller, the first controller is used to complete compressor speed detection, compressor current detection, heat sink temperature detection, IPM temperature detection, bus voltage detection, bus current detection, and output PWM signals, the second controller is used to complete the output of step control signals for the electronic expansion valve around the compressor, output drive signals for the display screen, output oil temperature adjustment signals around the compressor, output water temperature adjustment signals around the compressor, and output fan control signals around the compressor; the IPM module is used to output the compressor drive signal according to the PWM signal; it can achieve precise control of the variable frequency compressor based on the detection data of various external parameters.
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