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Energy storage welding machine

A welding machine and energy storage type technology, which is applied in the direction of energy storage discharge welding, welding power supply, welding power supply, etc., can solve problems such as overcharging, overdischarging, and reverse charging, and achieve the effect of improving production efficiency

Pending Publication Date: 2022-02-22
NAG SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When multiple capacitors have performance deviations, repeated charging and discharging between capacitors may lead to overcharging, overdischarging, and reverse charging

Method used

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  • Energy storage welding machine
  • Energy storage welding machine
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Embodiment Construction

[0035] Embodiments of the present invention will be described below with reference to the drawings. figure 1 It is a schematic configuration diagram showing an energy storage type welding machine (hereinafter simply referred to as "welding machine") 1 according to an embodiment of the present invention. The welding machine 1 has an energy storage unit 2 composed of a plurality of large-capacity energy storage components C, and performs resistance welding while applying pressure to a workpiece W to be welded between welding electrodes by energizing with a large-capacity electric power. The machine 1 is suitable for resistance welding when the performance of each energy storage component C varies, or resistance welding that requires short-term and high-current energization, speeding up the production process, and the like.

[0036] The welding machine 1 includes: a pair of upper and lower welding electrodes 11, 12 provided to move freely up and down; W pressurizes in the up and...

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Abstract

The invention provides an energy storage welding machine for performing resistance welding while applying pressure to an object to be welded includes: a pair of welding electrodes; an energy storage section including a plurality of energy storage parts; an individual charge circuit for individually charging respective energy storage parts; an individual discharge circuit for individually discharging the respective energy storage parts; a voltage monitor circuit individually monitoring voltages of the respective energy storage parts; an individual voltage stabilization control section for performing control to further charge an energy storage part having deviation in performance in an individual manner to stabilize a voltage of that energy storage part and thereby achieve a set voltage; and an output circuit for outputting power produced by the set voltage stabilized through individual charging and electric current through individual discharging in the energy storage section to apply the electric current between the welding electrodes.

Description

[0001] Associate application [0002] This application claims the priority of Japanese Patent Application No. 2020-138934 for which it applied on August 19, 2020, and takes in the whole by reference as a part of this application. technical field [0003] The invention relates to an energy storage type welding machine. Background technique [0004] Conventionally, there is known an energy storage type welding machine which has an energy storage unit composed of a plurality of large-capacity energy storage members, and pressurizes a workpiece to be welded between welding electrodes by energizing with high-capacity electric power. Perform resistance welding. In energy storage welding machines, many energy storage components such as large-capacity capacitors are used, but the performance of these capacitors may vary. [0005] On the other hand, this energy storage type welding machine can make the energization time longer, but it uses a large current in resistance welding, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/24H02J7/00
CPCB23K11/241H02J7/0068H02J2207/50B23K11/258B23K11/26B23K11/18B23K11/185B23K11/115B23K11/252H02J7/02H02J7/0063B23K11/3009B23K11/364B23K11/11H01M10/441
Inventor 长岭秀政和田圭司
Owner NAG SYST