Frequency converter capable of improving braking performance

Abstract

The invention discloses a frequency converter capable of improving braking performance. The frequency converter comprises a box body, the box body is internally provided with a frequency converter, one side of the frequency converter is provided with a cooling mechanism, the cooling mechanism is of a three-dimensional structure, the three-dimensional structure is provided with a plurality of concave-convex pipelines arranged in parallel and a plurality of fixed pipelines perpendicular to the concave-convex pipelines; each concave-convex pipeline is provided with concave surfaces and convex surfaces which are arranged in a staggered manner, and each fixed pipeline is connected with the junction of the concave surface and the convex surface; a detachable cooling plate is mounted on the cooling mechanism, a plurality of cooling grids are arranged on the cooling plate, and the cooling grids can be exactly embedded into gaps formed by the intersection of the concave-convex pipelines and the fixed pipelines according to the specification of the cooling grids; and a fixed base is arranged at the bottom of the cooling mechanism, a flow guide mechanism is arranged in the fixed base and is provided with a first plate and a second plate, waterproof patches are adhered to the tops of the first plate and the second plate, a handle is arranged on the first plate, a plurality of drainage holes are formed in the second plate, and the first plate covers the second plate through the handle.

Description

technical field [0001] The invention belongs to the technical field of cable protection, and in particular relates to a frequency converter with improved braking performance. 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. [0003] The inverter is mainly composed of rectification, filtering, inverter, braking unit, drive unit, detection unit and micro-processing unit. The inverter adjusts the voltage and frequency of the output power supply by switching off the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, thereby achieving the purpose of energy saving and speed regulation. [0004] At present, there are a large number of electronic components in the inverter box. These electronic components generate a lot of heat during oper...

AI Technical Summary

Problems solved by technology

[0004] At present, there are a large number of electronic components in the inverter box. These electronic components generate a lot of heat during operation. For the heat dissipation of the frequency converter, fans are used to dissipate heat from the chassis. This heat dissipation method is greatly affected by the external temperature. The external temperature is high and the heat dissipation efficiency is low, which has certain limitations.

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