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Highly-protective intelligent frequency conversion driver

A variable frequency drive and high protection technology, which is applied in the direction of AC motor control, conversion of equipment structural parts, conversion of AC power input into DC power output, etc., can solve problems such as crashes, malfunctions, and pollute power supply systems, and achieve enhanced anti-interference Compatibility and stability, the effect of reducing malfunction or even crash

Active Publication Date: 2017-07-28
ZHEJIANG JAROL SCI INSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Abundant harmonics will pollute the power supply system, causing malfunctions or even crashes in the inverter control circuit and other electronic equipment in the same power supply system

Method used

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  • Highly-protective intelligent frequency conversion driver
  • Highly-protective intelligent frequency conversion driver

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Embodiment Construction

[0022] refer to figure 1 , figure 2 , image 3 , Figure 4 with Figure 5, a high-protection intelligent variable frequency drive of the present invention, comprising a protective heat dissipation structure 1, a combined circuit protection device 2, a multi-layer sealing protection device 3, a waterproof heat dissipation fan device 4, and the protection heat dissipation structure 1 includes an air intake cover 11, an isolation Layer 12, limiting inner cover 13, exhaust fan 14, filter screen 15, the limiting inner cover 13 is arranged inside the air intake outer cover 11, and an isolation layer 12 is arranged between the limiting inner cover 13 and the air inlet outer cover 11, An exhaust fan 14 is arranged in the limiting inner cover 13, a filter screen 15 is arranged on the inside of the exhaust fan 14, and a plurality of air inlet holes 16 are arranged on the air inlet outer cover 11, and the air inlet holes 16 are evenly distributed in On the side walls around the air ...

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Abstract

The invention discloses a highly-protective intelligent frequency conversion driver. The driver comprises a protection heat dissipation structure, a combined type circuit protection device, a multi-layer sealing protection device and a waterproof heat dissipation fan device. According to the invention, problems of harmonic distortion and overvoltage generated by a frequency converter in industrial control can be solved; phenomena of malfunction or crashing of a frequency converter control circuit and other electronic devices in the same power supply system caused by harmonic pollution to the power supply system are avoided; anti-interference compatibility and stability of the circuit are enhanced; foreign matters like dust, and moisture are prevented from entering the frequency conversion driver to cause function faults when a heat dissipation structure sufficiently meets heat dissipation requirements; environment bearing ability of the frequency conversion driver is effectively improved; sealing at a port is quite thorough after the frequency converter is installed; the driver is proper in structure, convenient to install and stable and durable in sealing; effects on interior of the frequency converter imposed by outer environment factors are effectively reduced; and use performance of the frequency converter is improved.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of frequency converters, in particular to the technical field of a high-protection intelligent variable frequency drive. [0003] 【Background technique】 [0004] Inverter (Variable-frequency Drive, VFD) is a power control device that uses frequency conversion technology and microelectronics technology to control AC motors by changing the frequency of the motor's operating power supply. The frequency converter is mainly composed of rectification (AC to DC), filter, inverter (DC to AC), braking unit, drive unit, detection unit, micro-processing unit, etc. The frequency converter 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. In addition, the frequency converter has many protection functions , su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P27/06H02M7/00H02M1/12H02M1/44H05K5/06H05K7/20
CPCH02M1/12H02M1/44H02M7/003H02P27/06H05K5/061H05K7/20909Y02B30/70
Inventor 肖海乐陈玉军富勤飞顾月刚张彦杰潘峰李兴沈明珠徐遥
Owner ZHEJIANG JAROL SCI INSTR CO LTD
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