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Fault detection circuit and method of electromagnetic valve coil and electromagnetic valve coil device

A fault detection circuit and solenoid valve coil technology, applied in the field of solenoid valves, can solve the problems of large fault detection errors of solenoid valves, and achieve the effect of increasing volume and improving accuracy

Pending Publication Date: 2021-06-29
DUNAN ENVIRONMENT TECH
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Problems solved by technology

[0008] Based on this, the present application provides a fault detection circuit for a solenoid valve coil, a solenoid valve coil device, and a fault detection method for a solenoid valve coil, so as to at least solve the problem of large fault detection errors of a solenoid valve in the related art

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  • Fault detection circuit and method of electromagnetic valve coil and electromagnetic valve coil device
  • Fault detection circuit and method of electromagnetic valve coil and electromagnetic valve coil device
  • Fault detection circuit and method of electromagnetic valve coil and electromagnetic valve coil device

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Embodiment Construction

[0046] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application. Based on the examples in this application, all other examples obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0047]It should be noted that when a component is considered to be "mounted on" another component, it may be directly mounted on the other component or there may also be an intervening component. When a component is said to be "set on" another component, it may be set directly on the other component or there may be an intervening component at the same time. When a component is ...

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Abstract

The invention relates to a fault detection circuit and method of an electromagnetic valve coil and an electromagnetic valve coil device. The fault detection circuit of the electromagnetic valve coil comprises a voltage detection module, a current detection module, a pulsating voltage generation module and a processing module. The input end of the voltage detection module is coupled to the two ends of the electromagnetic valve coil and used for detecting the transient voltage of the electromagnetic valve coil. The input end of the current detection module is coupled to the two ends of the electromagnetic valve coil and used for detecting the transient current of the electromagnetic valve coil . The input end of the pulsating voltage generation module is coupled to the two ends of an electromagnetic valve coil. The processing module is used for determining the inductance value of the electromagnetic valve coil according to the transient voltage, the transient current and the resistance value of the electromagnetic valve coil and judging whether the electromagnetic valve coil or the electromagnetic valve breaks down or not according to the inductance value. Through the circuit, the problem of a large fault detection error of the electromagnetic valve in related technologies is solved, the accuracy of fault detection of the electromagnetic valve is improved, and the size of the electromagnetic valve is not increased.

Description

technical field [0001] The present application relates to the technical field of solenoid valves, in particular to a fault detection circuit for a solenoid valve coil, a solenoid valve coil device and a fault detection method for a solenoid valve coil. Background technique [0002] Solenoid valve (Electromagnetic Valve, referred to as EV) is an industrial equipment that uses electromagnetic control. It is mainly used to control the direction, flow, speed and other parameters of the fluid medium. It can be divided into hydraulic valves, pneumatic valves, etc. due to different control objects. . Solenoid valves can cooperate with different circuits to achieve the desired control, usually these circuits are set in the control system, and can adjust the control accuracy and flexibility in the control system. [0003] The existing solenoid valves are limited by the requirements of low cost and simple design, and are usually open-loop control, that is, the output of the control s...

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Application Information

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IPC IPC(8): G01R31/00G01R27/26G01R19/00F16K31/06
CPCG01R31/00G01R27/2611G01R19/00F16K31/0675
Inventor 俞舟康志军
Owner DUNAN ENVIRONMENT TECH
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