CN109217748B - Motor locked rotor control circuit for food processor and control method thereof - Google Patents
Motor locked rotor control circuit for food processor and control method thereof Download PDFInfo
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- CN109217748B CN109217748B CN201811364632.0A CN201811364632A CN109217748B CN 109217748 B CN109217748 B CN 109217748B CN 201811364632 A CN201811364632 A CN 201811364632A CN 109217748 B CN109217748 B CN 109217748B
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- 235000013305 food Nutrition 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 7
- 238000010411 cooking Methods 0.000 claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 8
- 230000000903 blocking effect Effects 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
- 235000010469 Glycine max Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/03—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors
- H02P7/05—Arrangements for regulating or controlling the speed or torque of electric DC motors for controlling the direction of rotation of DC motors by means of electronic switching
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/024—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load
- H02P29/0241—Detecting a fault condition, e.g. short circuit, locked rotor, open circuit or loss of load the fault being an overvoltage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Food-Manufacturing Devices (AREA)
Abstract
The invention relates to a motor locked rotor control circuit for a food processor, which solves the defects of the prior art and adopts the technical scheme that: the cooking motor is supplied with power by power supply unit, power supply unit passes through a pair of normally open contact and the cooking motor forward connection of contactor KM1, power supply unit passes through a pair of normally open contact and the reverse connection of cooking motor of contactor KM2, be provided with high temperature detection switch circuit on the cooking motor, power supply unit's positive pole is connected with normally closed button SB 1's first end, normally closed button SB 1's second end is connected with normally open button SB 2's first end, normally open button SB 2's first end is connected with normally open button SB 2's second end through time relay KT 1's normally open delay disconnection contact, normally open button SB 2's first end still is connected with normally open button SB 2's second end through time relay KT 2's normally open delay disconnection contact.
Description
Technical Field
The invention relates to a motor locked rotor control circuit, in particular to a motor locked rotor control circuit for a food processor.
Background
The cooking machine is a common kitchen equipment, and the grinding of soybean milk, the beating of fruit juice etc. can all be simply accomplished by the user, but because the consumer often can put into the cup with too much fruit vegetables when using the family's cooking machine, causes the cooking machine at the start-up instant, and the cutter embedding vegetables and fruits in the cooking cup, motor stall, the motor stall burns out whole cooking machine easily when overlength, causes the electrical apparatus to damage. Meanwhile, if the motor is protected as soon as the motor is locked, the output of the torsion is cut off, and the customer experience of the product is much worse. Therefore, the motor locked rotor control circuit for the food processor is designed in terms of two aspects.
Motor stall is a condition where the motor still outputs torque at a speed of 0 revolutions, and is typically mechanical or man-made. And the motor can not start or stop rotating due to the reasons of overlarge motor load, mechanical failure caused by dragging, bearing damage to a canteen and the like. The power factor is extremely low when the motor is blocked, the current (called blocking current) during blocking can be 7 times of rated current at most, and the motor can be burnt out after a long time. The motor stalling is easy to generate larger temperature rise due to overhigh current, and the thermistor can be used for detecting and sampling.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, when a consumer uses a household kitchen machine, too many fruits and vegetables are often put into a cup body, so that the kitchen machine is started instantly, a cutter in the kitchen cup is embedded into the fruits and vegetables, a motor is blocked, the whole kitchen machine is easily burnt out when the motor is blocked too long, and an electric appliance is damaged. Meanwhile, if the motor is protected as soon as locked, the output of torsion is cut off, and the customer experience of the product is much worse at the moment, the motor locked control circuit for the food processor is provided.
The technical scheme adopted for solving the technical problems is as follows: the motor locked rotor control circuit for the cooking machine comprises a power supply unit, wherein the power supply unit is in forward connection with the cooking motor through a pair of normally open contacts of a contactor KM1, the power supply unit is in reverse connection with the cooking motor through a pair of normally open contacts of a contactor KM2, a high-temperature detection switch circuit is configured on the cooking motor, the positive electrode of the power supply unit is connected with the first end of a normally closed button SB1, the second end of the normally closed button SB1 is connected with the first end of a normally open button SB2, the first end of the normally open button SB2 is connected with the second end of the normally open button SB2 through a normally open delay disconnection contact of a time relay KT1, and the first end of the normally open button SB2 is also connected with the second end of the normally open button SB2 through a normally open delay disconnection contact of a time relay KT 2;
the second end of normally open button SB2 still is connected with the first end of normally open button SB3, the first end of normally open button SB3 is connected with the first end of time relay KT 3's coil through the switch that switches on of high temperature detection switch circuit, and the negative pole of power supply unit is connected to the second end of time relay KT 3's coil, the negative pole of power supply unit is connected through the coil of time relay KT2 to the second end of normally open button SB3, and the negative pole of power supply unit is connected through the coil of contactor KM2 to the second end of normally open button SB3, and the normally open time delay disconnection contact first end of time relay KT3 is connected with the first end of normally open button SB3, and the normally open time delay disconnection contact second end of time relay KT3 is connected with the second end of normally open button SB3, and the second end of normally open button SB2 is connected through one normally closed contact of contactor KM 1's coil, and the negative pole of power supply unit is connected to the second end of contactor KM 1's coil, and the first end of time relay KT 1's coil is connected with the second end of time relay KT 1. The invention performs the following steps in operation:
step one, a normally open button SB2 is closed, a time relay KT1 is electrified, the normally open button SB2 is self-locked, a contactor KM1 is electrified,
step two, the cooking motor is started in a forward rotation way, if locked rotation occurs, the temperature of the cooking motor is increased, the temperature of a thermistor is synchronously increased, the resistance value of a divider resistor is reduced, the brightness of a light emitting diode in the optical coupler U1 exceeds a threshold value, the conducting ends of the optical coupler U1 are mutually conducted, and at the moment, the time relay KT3 is electrified;
step three, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is opened, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor is reversed, and the time relay KT2 is powered on to provide self-locking for the normally open button SB 2;
and fourthly, the rotation blocking of the cooking motor is relieved, the temperature of the thermistor RT1 is reduced, the brightness of a light emitting diode in the optocoupler U1 is lower than a threshold value, the conducting ends of the optocoupler U1 are mutually disconnected, the contact of the time relay KT3 is opened in a delayed manner, the contactor KM2 and the time relay KT2 lose electricity, the normally closed contact of the contactor KM1 is closed, and the cooking motor rotates positively.
If the cooking motor works, the normally open button SB2 can be directly pressed by manually reversing, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is disconnected, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor reverses, and the normally open button SB2 is provided with self-locking by the power on of the time relay KT 2;
after the normally open button SB2 is loosened, the contact delay of time relay KT3 is opened, and contactor KM2 and time relay KT2 lose electricity, and the normally closed contact of contactor KM1 is closed, cooking motor resumes the corotation.
Preferably, the high-temperature detection switch circuit comprises a thermistor RT1, a resistor R2 and an optocoupler U1, wherein one end of the thermistor RT1 is connected with a digital power supply, the second end of the thermistor RT1 is grounded through the resistor R1, the second end of the thermistor RT1 is connected with the input end of the optocoupler U1 through the resistor R2, the output end of the optocoupler U1 is grounded, the first conducting end of the optocoupler U1 is connected with the first end of a normally open button SB3, the second conducting end of the optocoupler U1 is connected with the first end of a coil of a time relay KT3, and the thermistor RT1 is attached to a cooking motor.
Preferably, the thermistor RT1 is a thermistor whose resistance value decreases after the temperature increases.
The motor locked rotor control method for the food processor is suitable for the motor locked rotor control circuit for the food processor, and comprises the following steps:
step one, a normally open button SB2 is closed, a time relay KT1 is electrified, the normally open button SB2 is self-locked, a contactor KM1 is electrified,
step two, the cooking motor is started in a forward rotation way, if locked rotation occurs, the temperature of the cooking motor is increased, the temperature of a thermistor is synchronously increased, the resistance value of a divider resistor is reduced, the brightness of a light emitting diode in the optical coupler U1 exceeds a threshold value, the conducting ends of the optical coupler U1 are mutually conducted, and at the moment, the time relay KT3 is electrified;
step three, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is opened, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor is reversed, and the time relay KT2 is powered on to provide self-locking for the normally open button SB 2;
and fourthly, the rotation blocking of the cooking motor is relieved, the temperature of the thermistor RT1 is reduced, the brightness of a light emitting diode in the optocoupler U1 is lower than a threshold value, the conducting ends of the optocoupler U1 are mutually disconnected, the contact of the time relay KT3 is opened in a delayed manner, the contactor KM2 and the time relay KT2 lose electricity, the normally closed contact of the contactor KM1 is closed, and the cooking motor rotates positively.
Preferably, if the cooking motor works, the normally open button SB2 can be directly pressed by manually reversing, the contactor KM2 is electrified, the normally closed contact of the contactor KM2 is disconnected, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor reverses, and the normally open button SB2 is provided with self-locking by the power supply of the time relay KT 2;
after the normally open button SB2 is loosened, the contact delay of time relay KT3 is opened, and contactor KM2 and time relay KT2 lose electricity, and the normally closed contact of contactor KM1 is closed, cooking motor resumes the corotation.
Preferably, the conducting end of the optocoupler U1 is further connected to an upper computer of the food processing motor, the upper computer is connected to the control end of the power supply unit, the driving output of the power supply unit is controlled by the upper computer, in the second step, if the continuous conducting frequency of the optocoupler U1 after one power-up is 3 times, that is, the number of forward rotations of the motor is 3, the upper computer outputs an error alarm, and the power-off restarting is needed, otherwise, any command of the upper computer is not accepted, and if the number of forward rotations of the motor is not 3, the third step is continuously executed.
The invention has the following substantial effects: according to the invention, locked rotor protection and user experience are considered, once locked rotor occurs, the problem of locked rotor of fruits and vegetables is solved by adopting a mode of short-time reverse rotation and forward rotation repetition of the cooking motor, and the user experience is good.
Drawings
FIG. 1 is a schematic circuit diagram of the present invention;
fig. 2 is a flow diagram of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described below through specific embodiments and with reference to the accompanying drawings.
Example 1:
a motor locked rotor control circuit (see figure 1) for a cooking machine, wherein the cooking motor is powered by a power supply unit, the power supply unit is connected with the cooking motor in a forward direction through a pair of normally open contacts of a contactor KM1, the power supply unit is connected with the cooking motor in a reverse direction through a pair of normally open contacts of a contactor KM2, a high-temperature detection switch circuit is configured on the cooking motor, the positive electrode of the power supply unit is connected with a first end of a normally closed button SB1, a second end of the normally closed button SB1 is connected with a first end of a normally open button SB2, a first end of the normally open button SB2 is connected with a second end of the normally open button SB2 through a normally open delay break contact of a time relay KT1, and the first end of the normally open button SB2 is also connected with a second end of the normally open button SB2 through a normally open delay break contact of the time relay KT 2;
the second end of normally open button SB2 still is connected with the first end of normally open button SB3, the first end of normally open button SB3 is connected with the first end of time relay KT 3's coil through the switch that switches on of high temperature detection switch circuit, and the negative pole of power supply unit is connected to the second end of time relay KT 3's coil, the negative pole of power supply unit is connected through the coil of time relay KT2 to the second end of normally open button SB3, and the negative pole of power supply unit is connected through the coil of contactor KM2 to the second end of normally open button SB3, and the normally open time delay disconnection contact first end of time relay KT3 is connected with the first end of normally open button SB3, and the normally open time delay disconnection contact second end of time relay KT3 is connected with the second end of normally open button SB3, and the second end of normally open button SB2 is connected through one normally closed contact of contactor KM 1's coil, and the negative pole of power supply unit is connected to the second end of contactor KM 1's coil, and the first end of time relay KT 1's coil is connected with the second end of time relay KT 1.
The high-temperature detection switch circuit comprises a thermistor RT1, a resistor R2 and an optocoupler U1, wherein one end of the thermistor RT1 is connected with a digital power supply, the second end of the thermistor RT1 is grounded through the resistor R1, the second end of the thermistor RT1 is connected with the input end of the optocoupler U1 through the resistor R2, the output end of the optocoupler U1 is grounded, the first conducting end of the optocoupler U1 is connected with the first end of a normally open button SB3, the second conducting end of the optocoupler U1 is connected with the first end of a coil of a time relay KT3, and the thermistor RT1 is attached to a cooking motor.
The thermistor RT1 is a thermistor whose resistance value decreases after the temperature increases.
The motor locked rotor control method for the food processor is suitable for the motor locked rotor control circuit for the food processor, and comprises the following steps:
step one, a normally open button SB2 is closed, a time relay KT1 is electrified, the normally open button SB2 is self-locked, a contactor KM1 is electrified,
step two, the cooking motor is started in a forward rotation way, if locked rotation occurs, the temperature of the cooking motor is increased, the temperature of a thermistor is synchronously increased, the resistance value of a divider resistor is reduced, the brightness of a light emitting diode in the optical coupler U1 exceeds a threshold value, the conducting ends of the optical coupler U1 are mutually conducted, and at the moment, the time relay KT3 is electrified;
step three, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is opened, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor is reversed, and the time relay KT2 is powered on to provide self-locking for the normally open button SB 2;
and fourthly, the rotation blocking of the cooking motor is relieved, the temperature of the thermistor RT1 is reduced, the brightness of a light emitting diode in the optocoupler U1 is lower than a threshold value, the conducting ends of the optocoupler U1 are mutually disconnected, the contact of the time relay KT3 is opened in a delayed manner, the contactor KM2 and the time relay KT2 lose electricity, the normally closed contact of the contactor KM1 is closed, and the cooking motor rotates positively.
If the cooking motor works, the normally open button SB2 can be directly pressed by manually reversing, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is disconnected, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor reverses, and the normally open button SB2 is provided with self-locking by the power on of the time relay KT 2;
after the normally open button SB2 is loosened, the contact delay of time relay KT3 is opened, and contactor KM2 and time relay KT2 lose electricity, and the normally closed contact of contactor KM1 is closed, cooking motor resumes the corotation.
The turn-on end of the optical coupler U1 is also connected with an upper computer of the food processing motor machine, the upper computer is connected with the control end of the power supply unit, the driving output of the power supply unit is controlled by the upper computer, in the second step, if the continuous turn-on times of the optical coupler U1 after one power-on is 3 times, namely the motor forward rotation times are 3, the upper computer outputs an error alarm and needs to be powered off and restarted, otherwise, any command of the upper computer is not accepted, and if the motor forward rotation times are not 3, the third step is continuously executed.
According to the embodiment, locked rotor protection and user experience are considered, the problem of fruit and vegetable locked rotor is solved by adopting a cooking motor short-time reverse rotation-forward rotation repeated mode once locked rotor occurs, and the user experience is good.
The above-described embodiment is only a preferred embodiment of the present invention, and is not limited in any way, and other variations and modifications may be made without departing from the technical aspects set forth in the claims.
Claims (4)
1. A motor lock changes control circuit for cooking machine, its characterized in that: the cooking motor is powered by a power supply unit, the power supply unit is connected with the cooking motor in the forward direction through a pair of normally open contacts of a contactor KM1, the power supply unit is connected with the cooking motor in the reverse direction through a pair of normally open contacts of a contactor KM2, a high-temperature detection switch circuit is configured on the cooking motor, the positive electrode of the power supply unit is connected with the first end of a normally closed button SB1, the second end of the normally closed button SB1 is connected with the first end of a normally open button SB2, the first end of the normally open button SB2 is connected with the second end of the normally open button SB2 through a normally open delay break contact of a time relay KT1, and the first end of the normally open button SB2 is also connected with the second end of the normally open button SB2 through a normally open delay break contact of the time relay KT 2;
the second end of the normally open button SB2 is also connected with the first end of the normally open button SB3, the first end of the normally open button SB3 is connected with the first end of a coil of the normally open button SB3 through a conduction switch of a high-temperature detection switch circuit, the second end of the coil of the normally open button SB3 is connected with the negative pole of the power supply unit through the coil of the normally open button KT2, the second end of the normally open button SB3 is connected with the negative pole of the power supply unit through the coil of the contactor KM2, the normally open delay disconnection contact first end of the normally open button KT3 is connected with the first end of the normally open button SB3, the normally open delay disconnection contact second end of the normally open button KT3 is connected with the second end of the normally open button SB3, the first end of the coil of the normally open button KM1 is connected with the second end of the normally open button SB2 through one normally closed contact of the contactor KM2, the second end of the coil of the normally open button KM1 is connected with the negative pole of the power supply unit, the first end of the normally open button KT1 is connected with the first end of the coil of the normally open button KM 1; the high-temperature detection switch circuit comprises a thermistor RT1, a resistor R2 and an optocoupler U1, wherein one end of the thermistor RT1 is connected with a digital power supply, the second end of the thermistor RT1 is grounded through the resistor R1, the second end of the thermistor RT1 is connected with the input end of the optocoupler U1 through the resistor R2, the output end of the optocoupler U1 is grounded, the first conducting end of the optocoupler U1 is connected with the first end of a normally open button SB3, the second conducting end of the optocoupler U1 is connected with the first end of a coil of a time relay KT3, and the thermistor RT1 is attached to a cooking motor; the thermistor RT1 is a thermistor whose resistance value decreases after the temperature increases.
2. A motor locked rotor control method for a food processor, which is applicable to the motor locked rotor control circuit for the food processor as claimed in claim 1, and is characterized in that: the steps of the following are carried out,
step one, a normally open button SB2 is closed, a time relay KT1 is electrified, the normally open button SB2 is self-locked, a contactor KM1 is electrified,
step two, the cooking motor is started in a forward rotation way, if locked rotation occurs, the temperature of the cooking motor is increased, the temperature of a thermistor is synchronously increased, the resistance value of a divider resistor is reduced, the brightness of a light emitting diode in the optical coupler U1 exceeds a threshold value, the conducting ends of the optical coupler U1 are mutually conducted, and at the moment, the time relay KT3 is electrified;
step three, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is opened, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor is reversed, and the time relay KT2 is powered on to provide self-locking for the normally open button SB 2;
and fourthly, the rotation blocking of the cooking motor is relieved, the temperature of the thermistor RT1 is reduced, the brightness of a light emitting diode in the optocoupler U1 is lower than a threshold value, the conducting ends of the optocoupler U1 are mutually disconnected, the contact of the time relay KT3 is opened in a delayed manner, the contactor KM2 and the time relay KT2 lose electricity, the normally closed contact of the contactor KM1 is closed, and the cooking motor rotates positively.
3. The motor locked rotor control method for a food processor according to claim 2, wherein: if the cooking motor works, the normally open button SB2 can be directly pressed by manually reversing, the contactor KM2 is powered on, the normally closed contact of the contactor KM2 is disconnected, the contactor KM1 is powered off, the normally open contact of the contactor KM2 is closed, the cooking motor reverses, and the normally open button SB2 is provided with self-locking by the power on of the time relay KT 2;
after the normally open button SB2 is loosened, the contact delay of time relay KT3 is opened, and contactor KM2 and time relay KT2 lose electricity, and the normally closed contact of contactor KM1 is closed, cooking motor resumes the corotation.
4. The motor stall control method for a food processor of claim 3, wherein: the turn-on end of the optical coupler U1 is also connected with an upper computer of the food processing motor machine, the upper computer is connected with the control end of the power supply unit, the driving output of the power supply unit is controlled by the upper computer, in the second step, if the continuous turn-on times of the optical coupler U1 after one power-on is 3 times, namely the motor forward rotation times are 3, the upper computer outputs an error alarm and needs to be powered off and restarted, otherwise, any command of the upper computer is not accepted, and if the motor forward rotation times are not 3, the third step is continuously executed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811364632.0A CN109217748B (en) | 2018-11-16 | 2018-11-16 | Motor locked rotor control circuit for food processor and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811364632.0A CN109217748B (en) | 2018-11-16 | 2018-11-16 | Motor locked rotor control circuit for food processor and control method thereof |
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| CN109217748A CN109217748A (en) | 2019-01-15 |
| CN109217748B true CN109217748B (en) | 2023-10-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111276940A (en) * | 2020-03-25 | 2020-06-12 | 珠海格力电器股份有限公司 | Motor locked-rotor protection detection method, device and equipment |
| CN111342740A (en) * | 2020-04-14 | 2020-06-26 | 姜武刚 | Motor locked-rotor control circuit and control method |
| CN111664888B (en) * | 2020-05-15 | 2022-08-02 | 杭州杰牌传动科技有限公司 | Distributed speed reduction motor energy monitoring system and method |
| CN113271053B (en) * | 2021-07-20 | 2021-09-28 | 徐州北方泵业有限公司 | Electric sand suction pump controller |
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| CN109217748A (en) | 2019-01-15 |
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Effective date of registration: 20230803 Address after: 322100 Hengdian Electronic Industrial Park, Dongyang City, Jinhua City, Zhejiang Province Applicant after: ZHEJIANG LINIX MOTOR Co.,Ltd. Address before: 322118 No. 196 Industrial Avenue, Hengdian Electronic Industrial Park, Jinhua City, Zhejiang Province Applicant before: HENGDIAN GROUP INNUOVO ELECTRIC Co.,Ltd. |
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