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Fault detection circuit and method for inverter resistance welding secondary rectification module

A fault detection circuit and secondary rectification technology, which is applied in the direction of resistance welding equipment, electrode characteristics, welding equipment, etc., can solve the problems of inconvenient use and maintenance, lack of online fault detection means for secondary rectification modules, etc., and achieve the goal of using and maintaining convenient effect

Inactive Publication Date: 2020-11-27
天津七所高科技有限公司
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Problems solved by technology

[0004] The secondary rectification module plays a very important role in this transformation process, but the online fault detection means for the secondary rectification module is very scarce. Generally, a multimeter and other instruments are used to test the conduction characteristics of the rectification module to make a fault. Judgment, bring great inconvenience to use and maintenance

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  • Fault detection circuit and method for inverter resistance welding secondary rectification module

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Embodiment Construction

[0037] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0038] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...

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Abstract

The invention provides a fault detection circuit and method for an inverter resistance welding secondary rectification module. The circuit comprises a primary rectification module, a secondary transformer and the secondary rectification module, wherein the primary rectification module and the secondary rectification module are connected through the transformer; a resistance welding controller is arranged on one side of the primary rectification module; and the circuit further comprises a primary current sensor which is connected with the resistance welding controller. According to the fault detection circuit and method for the inverter resistance welding secondary rectification module, the online fault detection of the secondary rectification module can be realized through the welding controller without adding other hardware, a fault can be quickly judged, and great convenience is brought during use and maintenance.

Description

technical field [0001] The invention belongs to the detection field of rectification modules, and in particular relates to a fault detection circuit and method for secondary rectification modules of inverter resistance welding. Background technique [0002] Resistance spot welding is widely used in aerospace, electronics, automobiles, household appliances and other industries due to its advantages of simple operation, low welding cost, good working conditions, and high productivity. In recent years, the demand for inverter intermediate frequency resistance welding machine products has continued Increase. With the continuous advancement of electronic technology and new material technology, resistance welding technology has experienced unprecedented development. The inverter resistance welding machine is a kind of equipment that can output pulsating DC with a certain frequency to realize the welding of parts. [0003] Inverter resistance welding is a kind of welding that fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K11/11B23K11/30B23K11/36
CPCB23K11/11B23K11/30B23K11/36
Inventor 路向琨高忠林翟宝亮郭锦华
Owner 天津七所高科技有限公司
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