Self-adsorption solenoid valve driving device for reinforced-exhaustion gas water heater

Abstract

The invention discloses a self-adsorption solenoid valve driving device for a reinforced-exhaustion gas water heater. The device comprises a controller, a solenoid valve, a wind pressure switch and a temperature controller switch. A public end of the solenoid valve is connected with one end of a power supply through the temperature controller switch, one end of the wind pressure switch is connected with the other end of the power supply, and a wind pressure switch detecting circuit is connected between the other end of the wind pressure switch and the controller. The controller is connected with a reinforced-suction coil driving circuit, a maintaining coil driving circuit and a solenoid valve driving circuit detecting circuit, wherein the reinforced-suction coil driving circuit and the maintaining coil driving circuit are used for driving the solenoid valve, and the solenoid valve driving circuit detecting circuit is used for detecting level of output ends of the reinforced-suction coil driving circuit and the maintaining coil driving circuit. A power end of the reinforced-suction coil driving circuit is connected with the power supply through the wind pressure switch, and a detecting end of the solenoid valve driving circuit detecting circuit is connected with a solenoid valve maintaining end. The self-adsorption solenoid valve driving device for the reinforced-exhaustion gas water heater has the advantages that by means of the driving device, out-of-control of the solenoid valve caused by faults of controllers and driving tubes or faults caused by high temperature is effectively avoided, and potential safety hazards are prevented.

Description

[technical field] [0001] The invention relates to a driving device for a self-priming electromagnetic valve of a forced exhaust gas water heater, which belongs to the field of electricity. [Background technique] [0002] At present, ordinary strong exhaust gas water heaters usually use MCU to directly drive the strong suction coil and maintenance coil of the self-priming solenoid valve to control the gas on and off, which has the following disadvantages: [0003] 1. When the MCU fails, the strong suction coil may be energized, and the solenoid valve will open abnormally, which is out of control. [0004] 2. When the drive tube driving the strong suction coil fails and is broken down, the solenoid valve may also open abnormally and be out of control. [0005] 3. When the drive tube driving the maintenance coil fails and is broken down, once the strong suction coil is energized, the solenoid valve cannot be closed, and the gas on and off is out of control, which may easily le...

AI Technical Summary

Problems solved by technology

[0003] 1. When the MCU fails, the strong suction coil may be energized, the solenoid valve will open abnormally, and it will be out of control

[0004] 2. When the drive tube driving the strong suction coil fails and is broken down, the solenoid valve may also open abnormally and be out of control

[0005] 3. When the driving tube driving the maintenance coil fails and is broken down, once the strong suction coil is energized, the solenoid valve cannot be closed, and the gas on and off is out of control, which may easily lead to safety accidents

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