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Power device of arc device

A technology of power supply equipment and equipment, which is applied in arc welding equipment, electric light sources, welding power supplies, etc., and can solve problems such as incorrect operation of communication devices and lack of communication devices

Inactive Publication Date: 2007-10-17
SANSHA ELECTRIC MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the technique disclosed in JP08-001350 is applied to equipment with an arc, electromagnetic noise may cause erroneous operation of the communication device, so it is necessary to provide means for preventing such erroneous operation, which requires some cost
[0007] The object of the present invention is to provide a power supply device for arc equipment, which adopts standard capacity power packs in unit form to meet various output capacities required by users, but in order to obtain this effect, does not contain A communication device like the communication device described above

Method used

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  • Power device of arc device
  • Power device of arc device
  • Power device of arc device

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Embodiment Construction

[0015] As shown in FIG. 1, a power supply device for use with an arc-using device according to a first embodiment of the present invention includes a plurality, for example, two, power supply groups 2a and 2b. The two power supply groups 2a and 2b have the same output capacity and have the same structure. Therefore, only one of the power supply groups, namely the power supply group 2a, will be described in detail in the following description, and no detailed description will be given to the other power supply group 2b.

[0016] It should be noted that the letters "a" and "b" are added to the reference numerals for the components of the power packs 2a and 2b, respectively. Thus, a component with a reference numeral appended to the reference numeral a is a component of a power supply pack 2a, and a component with a reference numeral appended to the reference numeral b is a component of a power supply 2b.

[0017] The power pack 2a includes AC to DC converting means, such as an ...

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Abstract

The present invention relates to a power supply device that is used together with an electric arc device, and the power supply device includes a plurality of electrical power packages (2a, 2b) that has a same capability. Each power supply package (2a, 2b) includes a rectification (4a, 4b) circuit at the input side, an inverter (10a, 10b), a transformer (12a, 12b) and a rectification circuit (18a, 18b) at the output side. A control circuit (30a, 30b) controls the inverter (10a, 10b) by inosculating itself with the reference signals provided by a reference signal generator (34a, 34b) through the high-efficiency current flowing through the inverter (10a, 10b) or the current flowing through the rectification circuit (18a, 18b) at the output side. The output ends of the rectification circuit (18a, 18b) at the output side of the electrical power packages are connected in parallel. And the values of the reference signals generated by the reference signal generator (34a, 34b) are always equal by the function of the equipotential circuits (40, 42).

Description

technical field [0001] The present invention relates to power supply equipment for arc equipment such as arc welding machines and arc cutting machines. Background technique [0002] Users sometimes request arc-using equipment manufacturers to provide power supply equipment for arc-using equipment having various output capacities. An embodiment for solving these problems is disclosed in Japanese Patent Application Publication JP08-001350A published on January 9, 1996. [0003] According to the present invention disclosed in this publication, an inverter type resistance welding machine having a standard capacity is used. Standard capacity resistance welding machines use DC power obtained by converting industrial AC power in an inverter circuit. Then, the converted DC power is converted into a high-frequency power in an inverter, and the high-frequency power is coupled to a primary winding in a welding machine transformer having a rectification circuit on the secondary windin...

Claims

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Application Information

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IPC IPC(8): H02M3/28H05B41/28H05B41/282B23K9/09B23K9/10B23K11/24
Inventor 石井秀雄池田哲朗壇上谦三池尻裕司
Owner SANSHA ELECTRIC MFG