A miniature high-frequency heating power supply for quenching

Abstract

The invention discloses a miniature high-frequency heating power source for quenching. The miniature high-frequency heating power source for quenching is low in operation cost and high in efficiency. The miniature high-frequency heating power source for quenching comprises a rectifying voltage-regulating system, a high-frequency resonance generating system and a control system. The rectifying voltage-regulating system comprises a rectifier bridge, two smoothing reactors, a positive electrode and negative electrode balance coil and a filter capacitor component. The high-frequency resonance generating system comprises a high-frequency power assembly and a resonance capacitor tank circuit. The high-frequency power assembly comprises four power devices, wherein two of the power devices are connected in parallel to form the positive electrode, the other two power devices are connected in parallel to form the negative electrode, and then the four power devices are connected to the other end of the positive electrode and negative electrode balance coil in parallel. The resonance capacitor tank circuit comprises four capacitors and a short-circuit coil, wherein the capacitor C2 and the capacitor C3 are connected in series and then connected with the positive electrode and the negative electrode of the high-frequency power assembly in parallel respectively, and the capacitor C1 and the capacitor C4 are connected with the positive electrode and the negative electrode of the high-frequency power assembly in series in a one-to-one correspondence mode. The short-circuit coil is connected with the positive electrode and the negative electrode of the high-frequency power assembly in parallel and the midpoint of the short-circuit coil is connected with a connection node between the capacitor C2 and the capacitor C3.

Description

technical field

[0001] The invention relates to a heating power supply for quenching, in particular to a miniature high-frequency heating power supply for quenching. Background technique

[0002] At present, the heat treatment industry has been booming in many fields in China, mainly because with the continuous development of my country's machinery manufacturing industry, my country's quality requirements for aerospace, military supplies, automobiles and some high-end mechanical parts continue to increase, especially for some The requirements for surface heat treatment are getting higher and higher, and the demand for quenching heat treatment equipment has also continuously put forward various requirements. As far as the current domestic situation is concerned, high-frequency quenching equipment is mainly divided into two categories: one is the old-fashioned high-frequency equipment using vacuum tubes, and the other is the new high-frequency equipment using integrated circuit...

Examples

Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] see figure 1 with figure 2 , the miniature high-frequency heating power supply for quenching of the present invention includes a rectification and voltage regulation system 100, a high-frequency resonance generation system 200 and a control system.

[0034] The rectification and voltage regulation system 100 includes a three-phase full-bridge rectifier bridge 7, two smoothing reactors 13, positive and negative balance coils 15 and a filter capacitor bank 27; , the negative output end in series; the positive and negative balance coils 15 are connected in series with the other ends of the two smoothing reactors 13 in one-to-one correspondence;

[0035] The high-frequency resonance generating system 200 includes a high-frequency power component 17 and a resonant capacitor tank 16; wherein, the high-frequency power component includes four MOSFET power devices, and two...

technical field

[0001] The invention relates to a heating power supply for quenching, in particular to a miniature high-frequency heating power supply for quenching. Background technique

[0002] At present, the heat treatment industry has been booming in many fields in China, mainly because with the continuous development of my country's machinery manufacturing industry, my country's quality requirements for aerospace, military supplies, automobiles and some high-end mechanical parts continue to increase, especially for some The requirements for surface heat treatment are getting higher and higher, and the demand for quenching heat treatment equipment has also continuously put forward various requirements. As far as the current domestic situation is concerned, high-frequency quenching equipment is mainly divided into two categories: one is the old-fashioned high-frequency equipment using vacuum tubes, and the other is the new high-frequency equipment using integrated circuit...

Examples

Embodiment Construction

[0032] The present invention will be further described below in conjunction with accompanying drawing.

[0033] see figure 1 with figure 2 , the miniature high-frequency heating power supply for quenching of the present invention includes a rectification and voltage regulation system 100, a high-frequency resonance generation system 200 and a control system.

[0034] The rectification and voltage regulation system 100 includes a three-phase full-bridge rectifier bridge 7, two smoothing reactors 13, positive and negative balance coils 15 and a filter capacitor bank 27; , the negative output end in series; the positive and negative balance coils 15 are connected in series with the other ends of the two smoothing reactors 13 in one-to-one correspondence;

[0035] The high-frequency resonance generating system 200 includes a high-frequency power component 17 and a resonant capacitor tank 16; wherein, the high-frequency power component includes four MOSFET power devices, and two...

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