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Motor stalling detection method and device, water heater and readable storage medium

A technology of motor stalling and detection methods, which is applied in the direction of measuring devices, motor generator testing, fluid heaters, etc., can solve problems such as constant temperature function failure, motor blockage, and increased hardware costs

Pending Publication Date: 2022-03-18
WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Water heaters are usually equipped with a thermostatic valve at the water outlet. If the water heater is used for a long time, scale will be generated, which will block the plug valve core of the thermostatic valve and cause motor blockage, resulting in failure of the thermostatic function.
Currently, for stepper motor stall detection, the main method is to add an encoder, or add a position switch at a specific position, but both need to change the existing product structure and increase hardware costs

Method used

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  • Motor stalling detection method and device, water heater and readable storage medium
  • Motor stalling detection method and device, water heater and readable storage medium
  • Motor stalling detection method and device, water heater and readable storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 As shown, an embodiment of the present invention provides a motor stall detection method for a water heater, the water heater includes a valve and a motor capable of driving the valve action, including:

[0056] Step S102, detecting the first water outlet temperature at the water outlet end of the valve;

[0057] Step S104, controlling the motor to rotate to the first angle, and detecting the second water outlet temperature at the water outlet end of the valve in the current state;

[0058] Step S106, judging the locked-rotor state of the motor according to the first outlet water temperature and the second outlet water temperature.

[0059]Wherein, the water heater includes a valve and a motor, the valve is arranged at the water outlet end of the water heater, the valve is a water mixing thermostatic valve, and the action of the valve can adjust the outlet water temperature of the water heater. The output end of the motor is connected with the spool o...

Embodiment 2

[0070] Such as image 3 As shown, an embodiment of the present invention provides a motor stall detection method for a water heater, the water heater includes a valve and a motor capable of driving the valve action, including:

[0071] Step S302, based on the fact that the valve is in a conduction state, detecting the first water inlet temperature of the valve and the second water inlet temperature of the valve;

[0072] Step S304, according to the first water inlet temperature and the second water inlet temperature, it is determined that the valve meets the blocking detection condition;

[0073] Step S306, based on the fact that the valve meets the blocking detection condition, detect the first water outlet temperature at the water outlet end of the valve;

[0074] Step S308, controlling the motor to rotate to the first angle, and detecting the second water outlet temperature at the water outlet end of the valve in the current state;

[0075] Step S310, judging the locked-r...

Embodiment 3

[0093] Such as Image 6 As shown, an embodiment of the present invention provides a motor stall detection method for a water heater, the water heater includes a valve and a motor capable of driving the valve action, including:

[0094] Step S602, detecting the first water outlet temperature at the water outlet end of the valve;

[0095] Step S604, controlling the motor to rotate to the first angle, and detecting the second water outlet temperature at the water outlet end of the valve in the current state;

[0096] Step S606, determining the locked-rotor state of the motor according to the first outlet water temperature and the second outlet water temperature;

[0097] Step S608, control the motor to run in troubleshooting mode, and return to the step of obtaining the first outlet water temperature of the valve;

[0098] Step S610, based on determining again that the motor is in a locked-rotor state, it is determined that the motor is in a state of troubleshooting failure, an...

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Abstract

The invention provides a motor stalling detection method and device, a water heater and a readable storage medium. The motor stalling detection method is used for the water heater, the water heater comprises a valve and a motor, the motor can drive the valve to act, and the method comprises the steps that the first water outlet temperature of the valve is detected; controlling the motor to rotate to a first angle to obtain a second water outlet temperature of the valve; and determining the locked-rotor state of the motor according to the first outlet water temperature and the second outlet water temperature. Whether the motor is in the locked-rotor state or not can be detected only according to the water outlet temperature of the water heater, additional sensors such as a position switch and an encoder do not need to be additionally arranged in the water heater, motor locked-rotor detection can be achieved through existing hardware of the water heater without additionally arranging hardware, and the production cost of the water heater is reduced.

Description

technical field [0001] The invention belongs to the technical field of water heaters, and in particular relates to a detection method for a motor stall, a motor stall detection device, a water heater and a computer-readable storage medium. Background technique [0002] Water heaters are usually equipped with a thermostatic valve at the water outlet. If the water heater is used for a long time, scale will be generated, which will block the plug valve core of the thermostatic valve and cause motor blockage, resulting in failure of the thermostatic function. At present, for stepper motor stall detection, the main method is to add an encoder, or add a position switch at a specific position, but both need to change the existing product structure and increase hardware costs. Contents of the invention [0003] The present invention aims to solve one of the technical problems existing in the prior art or related art. [0004] For this reason, the first aspect of the present inven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/34F24H9/20
CPCG01R31/343F24H9/2007
Inventor 陈世穷魏中科全永兵卢淑霞苏泽锋吴国洲刘亚涛
Owner WUHU MIDEA KITCHEN & BATH APPLIANCES MFG CO LTD