Zerode Heatsink Manufacturing (Shenzhen) Co., Ltd
Inverter cooling solution

Inverter cooling solution

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Inverter cooling solution

Frequency converter (VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motor by changing the working power frequency of the motor. The inverter is mainly composed of rectifier (AC to DC), filter, inverter (DC to AC), brake unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by breaking the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, so as to achieve the purpose of energy saving and speed regulation.


The heat dissipation of the inverter has a huge impact on the performance and service life of the inverter, and a good heat dissipation solution is undoubtedly important for the inverter, especially in the case of fierce competition, good heat dissipation can improve the quality of the inverter and enhance the competitiveness. Zerode Thermal Energy for many inverter manufacturers over the years to provide professional heat dissipation technology and services, for customers of inverter products tailored cooling solutions, but also provide thermal simulation, thermal simulation, thermal testing and other technical support for the stable performance of inverter products escort.

IGBT model simulation diagram and parameters
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Figure left is Infineon FF600R17 internal structure diagram and heating element diagram, total power: 660W, assuming that the heat conduction medium is 0.2mm thick 7762 thermal paste.
Simulation diagram of winding temperature
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             Heatsink parameter:
             Substrate size:230*320*14mm;
             Bonding fin: 15mm thick, 72mm high;
             Shorter fin: length 210mm,offset 5mm,17fins;
             Longer fins: length:320mm, 18fins;
             Total 35fins
             Heat pipe parameter:
             D9.5 Heat pipe;
             Substrate base: 6pcs,pitch 12mm;
             Epoxy resin bonding: K>=4W/m*K
Simulation diagram of module inlet air velocity diffusion degree
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Minimum airflow: 669.5m^3/H Maximum airflow: 703.1m^3/H
Heat dissipation simulation results of inverter module model and schematic diagram of fan operating point
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Simulation diagram of temperature diffusion degree in the middle section of the converter radiator (take the minimum flow module)
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(Minimum airflow value: 669.5m^3/H, pressure value: 197.1Pa)
Simulation diagram of winding temperature
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Simulation diagram of winding temperature
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