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Aluminum Heat Sink & Profile Manufacturing

address:No. 51 Luming Road Heavy River Management District - Qing Town Dongguan City

Q Q:2131405854

Telephone:+86 13827205356

mailbox:cnc@cncstamping.com

Selection and installation of the heat sink of the frequency converter

time:2021-05-13 17:35 author:Heat sink design click:

Inverter heat sink with efficient heat dissipation
Usually, the inverter heat sink is installed in the control cabinet. We need to know the approximate heat generation of an inverter, which can be estimated with the following formula: Approximate heat generation = inverter capacity (KW) × 55. Here, if the inverter capacity is based on the constant torque load (overcurrent capacity 150%*60s), if the inverter has a DC reactor or an AC reactor, and it is also in the cabinet. At this time, the heat will be greater, so it is better to install the reactor heat sink on the side of the inverter or above the test. At this time, you can use an estimate: Inverter capacity (KW) × 60 Because the hardware of all inverter manufacturers are similar, the above formula can be used for products of various brands. Note: If there is a braking resistor, because the braking resistor has a large amount of heat dissipation, it is best to install the heat sink in a location separate from the inverter, such as on or next to the cabinet.

So, how to reduce the heat in the control cabinet? When the inverter is installed in the control cabinet, the calorific value of the inverter should be considered. According to the increase in the value of heat generated in the cabinet, the size of the cabinet should be appropriately increased. Therefore, in order to reduce the size of the control cabinet as much as possible, it is necessary to reduce the heat value generated in the cabinet as much as possible. If the radiator of the inverter is placed outside the control cabinet when the inverter is installed, 70% of the heat generated by the inverter will be released to the outside of the control cabinet. Since the large-capacity inverter has a large heat generation, it is more effective for the large-capacity inverter. The main body and the radiator can also be separated by an isolation plate, so that the heat dissipation of the radiator does not affect the main body of the inverter. This effect is also very good.

The heat dissipation design of the inverter is based on vertical installation, and the heat dissipation will be worse if placed horizontally! Regarding cooling fans, inverters with slightly larger power generally have cooling fans. At the same time, it is also recommended to install a cooling fan on the air outlet of the control cabinet. A filter should be added to the air inlet to prevent dust from entering the control cabinet. Note that the fans on the control cabinet and the inverter are required, and no one can replace the other.