Electric welding machine circuit powered by lithium batteries

A technology of electric welding machine and lithium battery, which is applied in the direction of arc welding equipment, welding equipment, DC power supply parallel operation, etc. It can solve the problems of reducing production efficiency and wasting time, and achieves the improvement of work efficiency, high efficiency, and good current controllability Effect

Active Publication Date: 2016-11-23
上海和宗焊接设备制造有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, battery welders on the market can only be powered by batteries. When the battery energy is exhausted, it needs to be recharged before use, reducing production efficiency and wasting a lot of time.

Method used

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  • Electric welding machine circuit powered by lithium batteries
  • Electric welding machine circuit powered by lithium batteries
  • Electric welding machine circuit powered by lithium batteries

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Embodiment Construction

[0017] The present invention will be further described now in conjunction with accompanying drawing.

[0018] see figure 1 , The present invention is an electric welding machine circuit powered by a lithium battery, including an intelligent voltage determination circuit, a metal-oxide semiconductor field effect transistor, an insulated gate bipolar transistor, a relay, an electrolytic capacitor, a transformer and an output rectification circuit.

[0019] The input end of the intelligent voltage judging circuit is connected to the input power supply, and the control signal output end of the intelligent voltage judging circuit is divided into two circuits and respectively connected to the two ends of the coil of relay one K1 and the two ends of the coil of relay two K2.

[0020] see figure 2 , the intelligent voltage determination circuit includes a resistor R1, a resistor R2, a Zener diode Z1, a capacitor C3, a photocoupler U1, one end of the resistor R1 is connected to one e...

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PUM

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Abstract

The invention relates to the technical field of electric welding machines, in particular to an electric welding machine circuit powered by lithium batteries. The electric welding machine circuit powered by the lithium batteries comprises an intelligent voltage judging circuit, metallic-oxide semiconductor field effect transistors, insulated gate bipolar transistors, electric relays, electrolytic capacitors, a transformer and an output rectifying circuit; an input end of the intelligent voltage judging circuit is connected with an input power source; a control signal output end of the intelligent voltage judging circuit is connected with the two ends of a first electric relay coil and the two ends of a second electric relay coil in two ways; and a normally open contact of the first electric relay is connected with the input power source. Compared with the prior art, dual voltage, DC 48 V and AC 220V, power supply can be conducted, an input voltage can be judged intelligently, the purpose that the electric welding machine can be used in the areas without a power grid is realized, the work efficiency of the electric welding machine is improved, and the electric welding machine can be powered while being used; and in addition, a full-bridge MOSFET circuit is adopted in the direct current part, so that electric current controllability is better, and efficiency is higher.

Description

technical field [0001] The invention relates to the technical field of electric welding machines, in particular to an electric welding machine circuit powered by a lithium battery. Background technique [0002] In the field of inverter welding machines, it is usually powered by a single-phase 220V or three-phase 380V power grid, which can make the welding machine work stably. But in some occasions that cannot be connected to the mains, such as emergency maintenance in the field, the welding operation cannot be completed. At this time, a portable electric welding machine that can be powered by batteries is needed. [0003] At present, most of the power supply batteries on the market are batteries, which are large in size and heavy in weight, while lithium batteries have the advantages of high energy density and relatively lighter weight in the same volume. Similarly, the battery welders on the market can only be powered by batteries. When the battery energy is exhausted, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/10H02J1/10
CPCB23K9/1043H02J1/10Y02P70/10
Inventor 滕玮杨海洪
Owner 上海和宗焊接设备制造有限公司
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