Electromagnetic valve drive circuit for fuel gas system

A solenoid valve drive and circuit technology, applied in the direction of valve details, valve devices, engine components, etc., can solve the problems of complicated PCB board wiring, troublesome debugging, and non-expandability, etc., to simplify the circuit design of the whole machine, reduce the number of solder points, and quickly The effect of extended adaptation

Active Publication Date: 2017-02-01
CRM ICBG (WUXI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The discrete device solution requires many components, and the PCB board wiring is complicated, with many solder joints (about 100 exposed solder joints), and debugging is troublesome. In practical applications, it is almost impossible to expand when it needs to drive more solenoid valves.

Method used

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  • Electromagnetic valve drive circuit for fuel gas system
  • Electromagnetic valve drive circuit for fuel gas system
  • Electromagnetic valve drive circuit for fuel gas system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: see figure 2 , 3 As shown, a solenoid valve driving circuit for a gas system includes a control unit MCU and several driving chips. The driving chip integrates several solenoid valve driving circuits. The control unit receives the control signal and selects to send it. For the driving chip, the driving chip that has received the control signal controls the corresponding solenoid valve driving circuit to work, and outputs the driving signal to drive the corresponding solenoid switch valve.

[0031] In this embodiment, as figure 2 As shown, the control unit MCU (108) inputs a control signal to the integrated driver chip (107) to control the driver circuit in the driver chip (107) to open and close the electromagnetic switch valve or to control the open and close proportional state of the electromagnetic proportional valve.

[0032] like figure 2 The described driver chip (107) internally includes: a power failure detection circuit (101), an overvoltage de...

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PUM

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Abstract

The invention discloses an electromagnetic valve drive circuit for a fuel gas system. The electromagnetic valve drive circuit for the fuel gas system is characterized by comprising a control unit and a plurality of drive chips, wherein a plurality of electromagnetic valve drive circuit units are integrated in the drive chips, the control unit is used for receiving control signals and sends the control signals to the drive chips selectively, the drive chips receiving the control signals control the corresponding electromagnetic valve drive circuit units to work and output drive signals to drive corresponding electromagnetic switching valves. By means of integration of the electromagnetic valve drive circuit units, the whole circuit design is simplified, PCB (printed circuit board) wiring is simplified, welding spots exposed outside are reduced, the overall reliability and safety of the system are improved, besides, the circuit extensibility is better, and the circuit can better meet the requirement of actual application.

Description

technical field [0001] The invention relates to a solenoid valve driving circuit, in particular to a solenoid valve driving circuit used in a gas system. Background technique [0002] Gas appliances, including gas stoves, gas water heaters, etc., have become very popular household appliances. Its core gas system includes multiple solenoid valve modules, among which the solenoid switch valve is used to control the opening and closing of the gas transmission pipelines at all levels in the system, and plays a role of water vapor linkage and double protection; the gas proportional valve is the The main function of the air proportional control valve is to stabilize the output pressure of the proportional valve and adjust the output pressure of the proportional valve according to the input current. At the same time, the proportion of gas in the pipeline in use is controlled by the proportional valve, that is, the control of the gas flow can realize the control of the combustion s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06
CPCF16K31/0675
Inventor 沈超
Owner CRM ICBG (WUXI) CO LTD
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