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A method for controlling an electronic water valve

A technology of electronic water valve and control method, which is applied in the direction of valve operation/release device, valve details, valve device, etc., which can solve the problems of stalling, unable to judge whether it has entered the normal working state, etc., and achieve the goal of reducing the risk of occurrence Effect

Active Publication Date: 2022-04-22
HANGZHOU SANHUA RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because this control method cannot judge whether it has entered the normal working state, there is a possibility of stalling

Method used

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  • A method for controlling an electronic water valve
  • A method for controlling an electronic water valve
  • A method for controlling an electronic water valve

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[0036] The electronic water valve at least includes a valve core and a DC motor, and the power output part of the DC motor is connected to the valve core through transmission or directly.

[0037] The spool can be in the form of rotation. When the valve is opened or closed, the spool moves a certain distance after the valve port is completely closed or fully opened before reaching the position of stopping rotation. At this time, a relatively large motor driving torque is required. Wherein, the first and second positions are the positions where the valve core stops rotating determined by the mechanical structure, and the first and second positions are respectively located at the two ends of the valve core stroke. Specifically, in one embodiment, as Figure 12 As shown, the valve core is the first valve plate 22, the first valve plate 22 is in the f...

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PUM

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Abstract

A control method for an electronic water valve. The electronic water valve at least includes a valve core and a DC motor. The electronic water valve has a position detection module. The control method at least includes: powering on the electronic water valve; controlling the valve core to reset to the first position; The speed of the DC motor is the first speed and enters the first process; the current position of the spool is collected by the position detection module to judge whether the first process is over; when it is judged that the first process is not over, the DC motor is controlled to maintain the first speed; Once the process ends, the DC motor is controlled to switch to the second rotational speed to enter the second process; wherein, the first rotational speed is lower than the second rotational speed. The invention matches the output torque of the motor with the required torque of the electronic water valve in different stages through the change of the motor speed, thereby reducing the risk of stalling.

Description

technical field [0001] The invention relates to the technical field of fluid control, in particular to a method for controlling a water valve. Background technique [0002] Electronic water valves are generally composed of two parts, one part is the valve body part, and the other part is the actuator that controls the opening. The actuator includes a driving part, and the driving part includes a motor. [0003] When the valve core is in different positions, the friction torque between the valve seat and the valve core may be different, and the driving part mainly makes the valve plate continue to rotate by overcoming the friction torque between the valve core and the valve seat or the valve housing. At this time, if the output torque of the driving part is less than or close to the friction torque, the electronic water valve may be locked. The blocked rotation of the water valve will bring a series of problems, such as the overheating of the motor, the failure of the valve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/04F16K37/00
CPCF16K31/046F16K37/0041
Inventor 不公告发明人
Owner HANGZHOU SANHUA RES INST CO LTD