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Variable-frequency power source

A technology of frequency conversion power supply and frequency conversion circuit, which is applied to the modification of electrical components and power electronics, and the conversion of AC power input to AC power output. Power use stability and safety, reduce stability and safety, improve the effect of use performance

Pending Publication Date: 2017-05-31
四川恒隆电源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the existing frequency conversion power supply, the casing is generally integrally formed. If the circuit components inside fail, disassembly and assembly are very troublesome; in addition, the internal circuit components of the power supply with this structure generate a large amount of heat, and the heat dissipation performance of the casing is very poor. Poor, often cause internal components to malfunction due to overheating, or even burn out, affect the performance of electrical appliances, and even cause safety accidents

Method used

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Embodiment

[0019] See Figure 1-6 , A variable frequency power supply, including a housing and a variable frequency circuit located inside the housing, the variable frequency circuit includes a rectifier filter circuit 12 and an inverter circuit 13 connected to the rectifier filter circuit 12, and also includes a transformer filter circuit 14 and a control circuit 15 The transforming filter circuit 14 is connected to the inverter circuit 13, and the transforming filter circuit 14 is also connected to the inverter circuit 13 through the control circuit 15. A control button 213 and a display screen are provided on the front of the housing. 214 and a switch 11, the control circuit 15 is connected to the control button 213, the switch 11 is connected to the rectifier filter circuit 12, the housing includes a front plate 21, a rear plate 22, a left plate 23, and a right plate 24 , Base plate 25 and cover plate 26, the front plate 21 is parallel to the rear plate 22, the left plate 23 is parall...

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Abstract

The invention discloses a variable-frequency power source, which comprises a housing and frequency changer circuit installed in the inner of the housing, wherein the housing comprises a head board, a backboard, a left board, a right board, a baseplate and a cover plate, wherein on the top of the head board and the back board are both arranged with smooth edges, the cover board is installed with chute, on the inside of the left board and the right board are both arranged with a radiator, at least two through-holes is arranged on the back board, and a radiator fan is installed in the inner of the through-holes. The housing is set to detachable structure for convenient and timely maintenance when the inner of variable-frequency power source breaks down. In the meantime, heat radiation structure is set, which can reduce the stability and safety of power supply due to low heat dissipation. Adopting the variable-frequency power source, the failure rate of variable frequency power supply can be reduced by at least 50%, thereby the performance of the appliance is greatly improved, and the stability is increased.

Description

Technical field [0001] The invention relates to the field of electronic and electrical components, in particular to a variable frequency power supply. Background technique [0002] The variable frequency power supply transforms the alternating current in the mains from AC→DC→AC, and outputs a pure sine wave. The output frequency and voltage are adjustable within a certain range. The ideal AC power supply is characterized by stable frequency, stable voltage, zero internal resistance, and pure sine wave (no distortion) in the voltage waveform. The frequency conversion power supply is very close to the ideal AC power supply. Therefore, the frequency conversion power supply is increasingly used as the standard power supply in order to provide the most excellent power supply environment for the electrical appliances. However, the casing of the existing variable frequency power supply is generally integrally formed. If the circuit element inside fails, it is very troublesome to disass...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M5/00H05K7/20
CPCH02M5/00H05K7/20909
Inventor 杨立光
Owner 四川恒隆电源有限公司
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