Power conversion module of inverter air conditioner
A frequency conversion air conditioner and conversion module technology, which is applied in the direction of converting AC power input to AC power output, output power conversion devices, electrical components, etc., can solve the problems of low reliability of power conversion circuits, and achieve labor cost savings and reduction Cost, reduction of production process effect
Active Publication Date: 2014-01-15
GREE ELECTRIC APPLIANCES INC
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[0009] The main purpose of the present invention is to provide a power conversion module of an inverter air conditioner to solve the problem of low reliability of the power conversion circuit of the inverter air conditioner built by discrete power devices in the prior art
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[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0032] figure 1 is a schematic diagram of the power conversion module of the inverter air conditioner according to the first embodiment of the present invention, as figure 1 As shown, the power conversion module 10 of the inverter air conditioner in the first embodiment of the present invention includes: a first input pin L1 for connecting a DC input power supply, a first output pin A1 for connecting a motor, an interleaved power factor a correction unit 11, and a three-phase inverter unit 13, wherein the interleaved power factor correction unit 11 is connected between the first input pin and the three-phase inverter unit 13, and is used to adjust the power factor of the power conversion modul...
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The invention provides a power conversion module of an inverter air conditioner. The power conversion module comprises: a first input pin for connecting a DC input power supply, a first output pin for connecting a motor, a staggered-type power factor correction unit and a three-phase inversion unit, wherein the staggered-type power factor correction unit is connected between the first input pin and the three-phase inversion unit and used for adjusting power factors of the power conversion module; the three-phase inversion unit is connected between the staggered-type power factor correction unit and the first output pin and used for converting an input power supply into a three-phase power supply for motor frequency control and speed adjustment; and the staggered-type power factor correction unit and the three-phase inversion unit are packaged in the same housing. By adopting the technical scheme in the invention, the integration level of power devices is high; the cost of a printed circuit board is reduced; the production procedures are reduced; the process problem of the same radiating surface required by the power devices is solved; and the reliability of a power conversion circuit is improved.
Description
technical field [0001] The invention relates to the field of power electronics, in particular to a power conversion module of an inverter air conditioner. Background technique [0002] At present, the function of the power conversion circuit in the household inverter air conditioner is to convert the power frequency AC power into a series of processes such as rectification, inversion, and power factor correction (Power Factor Correction, PFC) into frequency-adjustable three-phase AC power to Provide power for the frequency conversion speed regulation motor. [0003] The power conversion circuit in the prior art is generally built with discrete devices on the circuit board. The power conversion circuit can be composed in this way, and the power conversion can be flexibly designed according to the characteristics of the inverter air conditioner. However, due to the power conversion circuit In particular, a large number of power devices are needed in the power factor correctio...
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IPC IPC(8): H02M5/458
Inventor 许敏薄传海程海松
Owner GREE ELECTRIC APPLIANCES INC