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A power supply no-load voltage regulator

A no-load voltage and adjusting device technology, which is applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the contradiction between power no-load voltage safety and arc starting performance, cannot take into account safety and work performance, and weakens welding Power supply arcing performance and other issues to achieve the effect of improving applicability, ensuring safety, and improving safety

Active Publication Date: 2021-11-02
CHONGQING CAMEL POWER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the no-load voltage of the welding power source is reduced, the safety is improved, but it will weaken the arc starting performance of the welding power source, which will affect the overall working performance of the welding power source, and the higher the no-load voltage, the stronger the arc starting ability in theory
The existing technical solutions cannot balance safety and work performance, and there is a contradiction between the safety of the no-load voltage of the power supply and the arc starting performance

Method used

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  • A power supply no-load voltage regulator

Examples

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Effect test

Embodiment 1

[0035] Such as figure 1 As shown, this embodiment provides a power supply no-load voltage regulator, including a no-load detection unit, a VRD drive unit, and a VRD control unit; the no-load detection unit is connected to the VRD drive unit via the VRD control unit, and the VRD control unit is connected to the VRD drive unit. The power supply output terminal is connected; the no-load detection unit is used to detect whether the electric energy device enters the no-load state, and sends a signal to the VRD control unit when the electric energy device enters the no-load state; the VRD control unit is used to receive the no-load detection When the signal is sent by the unit, control the VRD drive unit to cut off the connection between the positive pole of the power supply of the first branch and the positive pole of the power output terminal, so that the no-load voltage regulator of the power supply enters the no-load low-voltage safety mode; the VRD control unit is also used in t...

Embodiment 2

[0038] Such as figure 2 As shown, this embodiment provides a device for adjusting the no-load voltage of a power supply. Compared with Embodiment 1, the power supply no-load voltage adjustment device provided by this embodiment also includes a no-load voltage adjustment unit; the no-load voltage adjustment unit arranged between the power supply and the second branch of the power output terminal is used to adjust the second The voltage at the output terminal of the branch circuit.

[0039] The no-load voltage of the existing electric energy device is generally fixed. In this embodiment, the no-load voltage adjustment unit is used to adjust the step-down ratio between the power supply and the output terminal of the power supply, so as to realize the adjustment of the voltage at the output terminal of the power supply, so that the no-load voltage can be adjusted. , so as to be applicable to different usage scenarios and improve the applicability of the power supply no-load volt...

Embodiment 3

[0049] Such as image 3 As shown, this embodiment takes an arc welding machine as an example to provide a specific implementation of a no-load voltage regulator for a power supply.

[0050] In this embodiment, the no-load detection unit is used to detect whether there is current in the welding cable, so as to detect whether it is in a no-load state; the feedback self-locking control unit is specifically a current negative feedback self-locking control unit, and the start-up control unit is specifically a short-circuit trigger The arc control unit and the start monitoring unit are specifically the short-circuit anti-sticking control unit. The specific circuit connection relationship is as follows:

[0051] Wherein, the no-load detection unit includes a welding current sensor T2, the through hole of the welding current sensor T2 is provided with a welding cable, and the output end of the welding current sensor T2 is connected with the input end of the feedback self-locking cont...

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Abstract

The invention relates to the field of power supply management, and discloses a no-load voltage regulating device for a power supply. The power supply no-load voltage regulator includes a no-load detection unit, a VRD drive unit and a VRD control unit; the present invention enters the VRD mode through the VRD control unit, and can quickly exit the no-load low-voltage safety mode, start the power supply, and enter the normal working state. In order to balance safety and work performance.

Description

technical field [0001] The invention relates to the field of power supply management, in particular to a power supply no-load voltage regulator. Background technique [0002] Arc welding, submerged arc welding, carbon arc gouging, plasma welding and cutting, and other equipment have high no-load voltage, which poses safety hazards to people. It is necessary to perform safety voltage management on these electrical energy devices, and enter low voltage when no-load Safe Mode (VRD). Taking the arc welding machine as an example, the no-load voltage of the welding power supply is mostly between 60-100V, and most of the common no-load voltages are nominally average or effective. If the no-load voltage is nominally peak voltage, The nominal value is higher, so the no-load voltage of the welding power source exceeds the safe voltage that the human body can bear, and there are potential safety hazards. Different environments and regions have different regulations on human body safe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 艾利彭书松
Owner CHONGQING CAMEL POWER MACHINERY
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