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Rotational drive airtight control method, device, motor and storage medium of motor

A technology of rotation control and rotation drive, applied in the direction of speed/torque control of a single motor, can solve problems such as affecting the service life and failure rate of automatic rice cookers, mechanical impact of sealing components, and large motor torque.

Active Publication Date: 2021-07-13
FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the related technology, the bottom of the rice storage box of the automatic rice cooker is equipped with a motor. When the motor is driving the structure to seal the opening, due to the compressibility of the seal, it is necessary to keep the motor running until the motor is blocked to ensure the seal. However, when the large amount of rotational control continuously output to the motor will cause the torque of the motor to be too large, and then cause mechanical impact on the sealing assembly of the opening, at the same time, due to the large rotational control The sudden increase of the load current may cause the power device of the motor to be burned, which seriously affects the service life and failure rate of the automatic rice cooker

Method used

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  • Rotational drive airtight control method, device, motor and storage medium of motor
  • Rotational drive airtight control method, device, motor and storage medium of motor
  • Rotational drive airtight control method, device, motor and storage medium of motor

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Embodiment 1

[0050] figure 1 It shows a schematic flow chart of the control method of the rotation drive airtightness of the motor according to Embodiment 1 of the present invention.

[0051] Such as figure 1 As shown, according to the first embodiment of the present invention, the method for controlling the rotation, drive and airtightness of the motor includes: step S102, when the motor is driven according to the specified rotation control amount to seal the opening, detect the actual rotational speed of the motor; step S104, after detecting When the actual speed is lower than the preset speed threshold, reduce the speed of the motor.

[0052] In this technical solution, by detecting the actual speed of the motor when the motor is driven according to the specified rotation control amount to seal the opening, it is possible to detect in time whether the motor has an operating fault, and when it is detected that the actual speed is lower than the preset speed threshold, reduce The speed ...

Embodiment 2

[0066] figure 2 A schematic diagram showing the corresponding relationship between the rotation control amount and the rotational speed in the method for controlling the rotation-driven airtightness of the motor according to the second embodiment of the present invention is shown.

[0067] Such as figure 2 As shown, according to the second embodiment of the present invention, the method for controlling the rotation drive airtightness of the motor includes the following six stages:

[0068] (1) When it is determined that the actual rotation speed is less than the first preset rotation speed threshold S1 and the actual rotation speed is greater than or equal to the second preset rotation speed threshold S2, adjust the rotation control according to the corresponding relationship between the reduction amount of the preset rotation control amount and the rotation speed The offset of the decreasing amount of the amount is zero, that is, when it is detected that the rotation speed...

Embodiment 3

[0075] image 3 It shows a schematic flow chart of the control method of the rotation drive airtightness of the motor according to the third embodiment of the present invention.

[0076] Such as image 3 As shown, the control method of motor rotation drive airtight according to Embodiment 3 of the present invention includes: step S302, detect whether the motor is blocked according to the load signal of the motor, if yes, then end, if not, then execute step S304; step S304 , according to the corresponding relationship between the load signal, the preset load signal and the rotating speed, determine the actual rotating speed of the motor according to the preset time interval; step S306, judge whether the actual rotating speed>preset rotating speed Sadj holds true, if so, then execute step S304, If not, then execute step S310; step S308, keep the actual speed of the motor unchanged; step S310, judge whether the preset speed Smin<actual speed<preset speed Sadj is established, if ...

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Abstract

The invention provides a control method, device, motor and storage medium for controlling the rotation and drive sealing of the motor, wherein the control method for the rotation drive and sealing of the motor includes: when the motor is driven according to the specified rotation control amount to seal the opening, detecting the rotation of the motor Actual speed; when it is detected that the actual speed is lower than the preset speed threshold, reduce the speed of the motor. Through the technical solution of the present invention, the occurrence of excessive torque when the motor is about to be locked can be effectively reduced, and the sudden temperature rise of the power device of the motor due to excessive torque is avoided, thereby reducing the failure rate of the motor.

Description

technical field [0001] The present invention relates to the technical field of motor control, and in particular, relates to a motor rotation drive airtight control method, a motor rotation drive airtight control device, a motor, and a computer-readable storage medium. Background technique [0002] In order to simplify the user's operation steps and shorten the waiting time for cooking, an automatic rice cooker has been developed, which can automatically perform the processes of feeding rice, feeding water, washing rice, draining and washing rice water, placing rice into the pot, heating and cooking, and keeping warm. [0003] In the related technology, the bottom of the rice storage box of the automatic rice cooker is equipped with a motor. When the motor is driving the structure to seal the opening, due to the compressibility of the seal, it is necessary to keep the motor running until the motor is blocked to ensure the seal. However, when the large amount of rotational con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/06
CPCH02P6/06
Inventor 区达理王志锋刘经生雷俊邓家华冯江平刘志才
Owner FOSHAN SHUNDE MIDEA ELECTRICAL HEATING APPLIANCES MFG CO LTD