A cooling device applied to frequency converter

Abstract

The invention discloses a frequency converter heat radiation apparatus and provides a high-efficiency heat radiation apparatus applied to a frequency converter. The apparatus comprises a sealing box, a heat dissipation box and a temperature control system. One side of the sealing box is provided with a heat dissipation wall; a frequency converter heating device is installed on the inner side surface of the heat dissipation wall; the outer side surface of the heat dissipation wall is closely attached to a front water cooling box of a water cooling system; the heat dissipation box comprises the water cooling system and a blower fan; the front water cooling box and a rear water cooling box of the water cooling system communicate through a group of heat dissipation pipes; the two sides of each heat dissipation pipe are uniformly provided with radiating fins; the blower fan is installed at the bottom of the heat dissipation box; the left and the right of the heat dissipation box are each provided with a heat dissipation plate which forms an enclosed casing structure with the front water cooling box and the rear water cooling box; and the top portion of the heat dissipation box is open. According to the invention, heat dissipation is performed on a frequency converter in a combined mode of water cooling and air cooling, and the apparatus is small in size and remarkable in heat dissipation effect; the blower fan, the sealing box and the water cooling system can be separated from each other so that cleaning is facilitated; and the sealing box guarantees the sealing property of the frequency converter and prevents the frequency converter from being affected by dust and moisture.

Description

technical field [0001] The invention designs a cooling device for a frequency converter, which belongs to the technical field of frequency converter heat dissipation Background technique [0002] The frequency converter is a power control device that uses frequency conversion technology and microelectronics technology to control the AC motor by changing the frequency of the motor's working power supply. It is the core component of the frequency conversion speed regulation system. As the degree of industrial automation is getting higher and higher, frequency converters are more and more widely used in the fields of industrial control and daily life. Since the core circuit module of the frequency converter has the characteristics of high integration, high frequency, high voltage, and high speed, it generates serious heat during operation. The normal operating temperature of the inverter is -10°C~+50°C, once it exceeds this range, the performance of electronic components will ...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing heat dissipation technology adopts the method of directly attaching the metal heat sink to the circuit board, using air cooling to dissipate heat, the heat dissipation speed is slow, and the effect is not good

Some heat dissipation devices that use a combination of water cooling and air cooling have disadvantages such as complex structure, poor sealing of the device, easy water leakage, and high noise when the fan and water pump are used together.

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