Circuit Compensation Network of Efficiency-Based Non-contact Powered Ultrasonic Vibration System

Abstract

The invention discloses a circuit compensation network for a non-contact power supply ultrasonic vibration system seeking to achieve maximum transmission efficiency, including a primary side compensation network and a secondary side compensation network, and the primary side compensation network is connected to an ultrasonic power supply and a non-contact electromagnetic coupler Between the primary side coils, it is used to compensate the reactive power of the system, so that the output voltage and current of the power supply are in the same phase. The secondary side compensation network is connected between the non-contact electromagnetic coupler secondary side coil and the ultrasonic vibrator. parameters to achieve energy transmission with the highest efficiency, and the compensation components are inductors and / or capacitors. The invention can be applied to occasions such as rotary ultrasonic processing, ultrasonic welding and the like where a non-contact electromagnetic coupler is required to supply power to ultrasonic vibrators, and realizes energy transmission with the highest efficiency by optimizing compensation element parameters.

Description

technical field [0001] The invention relates to a technology of using a non-contact rotating electromagnetic coupler to supply power to an ultrasonic transducer, in particular to a circuit compensation method for realizing the maximum transmission efficiency of the non-contact energy transmission system. Background technique [0002] Rotary ultrasonic machining uses consolidated diamond tools (electroplated or sintered diamond tools) for ultrasonic vibration and high-speed rotation at the same time. Widely used in the processing of hard and brittle materials such as engineering ceramics, composite materials, titanium alloys, etc., rotary ultrasonic machining can effectively improve material removal rate, improve workpiece surface quality and prolong tool life. Traditional rotary ultrasonic machine tools mostly use the power supply method of brush slip ring. This contact power supply method is prone to sparks and wear, and cannot be used in inflammable and explosive harsh en...

AI Technical Summary

Problems solved by technology

Leakage flux prevents the energy emitted by the primary coil from being completely absorbed by the secondary coil, and some of it is stored inside the coupler, which not only limits its power transmission capability, but also increases its own loss

The load of the rotating electromagnetic coupler is the ultrasonic vibration system (transducer, horn and tool). The ultrasonic vibration system needs to work at its resonant frequency to obtain the maximum conversion efficiency and amplitude. The transducer performs at its resonant frequency. It is a capacitive element rather than a pure resistive one, which will inevitably consume a large amount of reactive power, reducing the system power factor and transmission efficiency

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