A current reconstruction overmodulation device for an air conditioner inverter

Abstract

The invention relates to the technical field of frequency converters, and discloses a current reconstruction overmodulation device for air conditioner frequency converters, which includes a device outer box, a heat dissipation mechanism is provided inside the device outer box, and the bottom of the device outer box is fixed and installed There are four supporting legs, and the bottoms of the four supporting legs are all provided with damping mechanisms, and the inside of the outer box of the device is fixedly installed with a modulating assembly. The current reconstruction overmodulation device of the air conditioner frequency converter can focus on the heat dissipation of the structure whose internal temperature rises in the modulation component by setting a heat dissipation mechanism, so as to avoid the impact on other structures caused by the excessive temperature of a certain structure inside the modulation component. Furthermore, the effect of heat dissipation and cooling on the modulation components is greatly improved. By setting the shock absorbing mechanism, the impact of the vibration generated by the internal structure of the frequency converter on the modulation components can be reduced, and the internal structure of the modulation components is avoided due to vibration. The stability of the modulation component is improved.

Description

Technical field [0001] The present invention relates to the field of inverters, and in particular, an air conditioning converter current-based modulation device. Background technique [0002] The inverter air conditioner refers to the conventional air conditioner of the inverter. The compressor is the heart of the air conditioner. The speed directly affects the efficiency of the air conditioner. The inverter is used to control and adjust the control system of the compressor speed, so that it is always in the most Good speed state, thereby increasing energy efficiency, current inverter air conditioners generally have problems that the power supply voltage is not fully utilized, so there is a need to modulate the air conditioner inverter. [0003] However, in the process of operation, the inside thereon produces a large vibration, which will cause a connection between the various structures in the current modulation assembly to generate a relaxation shift, affecting its use, and th...

AI Technical Summary

Problems solved by technology

[0002] Inverter air conditioner refers to a conventional air conditioner equipped with a frequency converter. The compressor is the heart of the air conditioner, and its speed directly affects the efficiency of the air conditioner. Optimum speed state, thereby improving the energy efficiency ratio, the current inverter air conditioner generally has the problem of underutilization of the power supply voltage, so it is necessary to over-modulate the air conditioner inverter

[0003] However, during the operation of the frequency converter, there will be large vibrations inside it, which will cause loosening and displacement of the connections between the various structures inside the current modulation component over time, affecting its use. At the same time, the frequency converter will generate A large amount of heat energy makes the overmodulation components stay in a high temperature environment for a long time, which is easy to cause damage and affect the service life. Therefore, a current reconstruction overmodulation device for air conditioner inverters is proposed to solve the above-mentioned problems.

Images