CN116158680A - Control method of skin cleaning device and skin cleaning device - Google Patents
Control method of skin cleaning device and skin cleaning device Download PDFInfo
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- CN116158680A CN116158680A CN202111405190.1A CN202111405190A CN116158680A CN 116158680 A CN116158680 A CN 116158680A CN 202111405190 A CN202111405190 A CN 202111405190A CN 116158680 A CN116158680 A CN 116158680A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000004140 cleaning Methods 0.000 title claims abstract description 34
- 238000005070 sampling Methods 0.000 claims description 49
- 230000001815 facial effect Effects 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K7/00—Body washing or cleaning implements
- A47K7/04—Mechanical washing or cleaning devices, hand or mechanically, i.e. power operated
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
- H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
- H02H7/0854—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load responsive to rate of change of current, couple or speed, e.g. anti-kickback protection
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Abstract
The invention discloses a control method of a skin cleaning device and the skin cleaning device, wherein the control method comprises the following steps: acquiring working current of a rotating motor of the skin cleaning device in real time; when the working current is detected to reach or exceed the locked-rotor current, a control signal is sent to the power switch circuit to control the power voltage of the rotary motor to be cut off, and the frequency of cutting off the power voltage is accumulated; when the cut-off times of the power supply voltage do not reach the preset times and the cut-off time of the power supply of the rotating motor reaches the first preset time, the power supply voltage of the rotating motor is controlled to be switched on. The invention can automatically cut off the power supply when the rotating motor of the skin cleaning device is blocked to realize the protection of the rotating motor, and can automatically resume the rotation when the blocking is released, thereby improving the experience of users.
Description
Technical Field
The invention relates to the technical field of personal appliance nursing, in particular to a control method of a skin cleaning device and the skin cleaning device.
Background
With the improvement of the current living standard of people, people pay more and more attention to skin cleaning. The traditional bath ball, the bath towel, the face towel and the like are difficult to meet the requirements of people on the comfort of cleaning quality, so various electric cleaning products are appeared on the market. The rotary electric cleaning product has better cleaning effect and use experience, is favored by users, but can cause the rotary brush hair to be blocked if the users cling to the rotary electric cleaning product in the use process. In order to prevent the motor from burning out, the products on the market basically choose to directly stop the rotation of the rotating motor to avoid the stalling of the rotating motor, but after stopping, the user needs to press the starting again, so that the cleaning products can continue to run. However, when a user uses the facial cleanser to clean the face, eyes are often inconvenient to open, and manual starting can cause a certain degree of use trouble to the user. In addition, the user can not know how long later to start again, and too long waiting time restarts can lead to the waste of user time, and too short waiting time just starts and can lead to the motor overheated, influences user experience.
Disclosure of Invention
The invention mainly aims to provide a control method of a skin cleaning device and the skin cleaning device, which overcome the defects of the skin cleaning device in the prior art, can automatically cut off power to realize the protection of a rotating motor when the rotating motor of the skin cleaning device is blocked, and can automatically recover rotation when the blocking is released, thereby improving the experience of a user.
The invention adopts the following technical scheme:
in one aspect, a method of controlling a skin cleansing device includes:
acquiring working current of a rotating motor of the skin cleaning device in real time;
when the working current is detected to reach or exceed the locked-rotor current, a control signal is sent to the power switch circuit to control the power voltage of the rotary motor to be cut off, and the frequency of cutting off the power voltage is accumulated;
when the cut-off times of the power supply voltage do not reach the preset times and the cut-off time of the power supply of the rotating motor reaches the first preset time, the power supply voltage of the rotating motor is controlled to be switched on.
Preferably, the first preset time is a time for compensating the output power of the portion exceeding the rated power in a time from when the operating current exceeds the rated current to when the power supply is turned off.
Preferably, the method for obtaining the first preset time specifically includes:
acquiring the total output power of the rotating motor in the time from when the working current of the rotating motor exceeds the rated current to when the power supply is cut off;
acquiring the equivalent total rated power of the rotating motor in the time from the working current of the rotating motor exceeding the rated current to the power cut-off;
and making a difference between the total output power and the total rated power, and dividing the difference by the rated power in unit time to obtain the first preset time.
Preferably, the total output power of the rotating electrical machine is expressed as follows:
W total ＝T S *(P 1 +P 2 +......+P n )
wherein W is total Representing the total output power; t (T) S Representing a sampling period; p (P) 1 、P 2 、……、P n Output power of a single sampling period of the rotating motor is respectively represented and is equal to the product of the working current and the power supply voltage of the rotating motor;
the total rated power equivalent to the rotating electrical machine is expressed as follows:
W r ＝n*T S *P r
wherein W is r Indicating the total rated power, n indicating the number of samples from the time when the operating current exceeds the rated current to the time when the power supply is turned off; p (P) r Representing the rated power of a single sampling period, which is equal to the product of the rated current of the rotating electrical machine and the power supply voltage;
the first preset time is expressed as follows:
T a ＝(W total -W r )/P r
wherein T is a Indicating a first preset time.
Preferably, before the sending the control signal to the power switch circuit controls to cut off the power supply voltage of the rotating electrical machine, the method further includes:
and judging whether the duration time of the working current reaching or exceeding the locked-rotor current exceeds a second preset time.
In another aspect, a skin cleansing device comprises: the device comprises a controller, a rotating motor, a sampling circuit and a power switch circuit;
the sampling circuit is used for acquiring the voltage of the sampling point and sending the voltage of the sampling point to the controller, or is used for acquiring the working current of the rotating motor and sending the working current to the controller;
the power switch circuit is used for receiving a control signal sent by the controller so as to cut off or switch on the power supply voltage of the rotating motor;
the controller is used for receiving the working current sent by the sampling circuit or converting the working current into the working current after receiving the voltage of the sampling point sent by the sampling circuit; the power switch circuit is also used for detecting that the working current reaches or exceeds the locked-rotor current, then sending a control signal to the power switch circuit to control the power voltage of the rotary motor to be cut off, and accumulating the times of cutting off the power voltage; and the power supply voltage control unit is used for controlling the power supply voltage of the rotating motor to be switched on after the switching-off times of the power supply voltage do not reach the preset times and the switching-off time of the power supply voltage of the rotating motor reaches the first preset time.
Preferably, the power switching circuit comprises a switching module and a diode; one end of the switch module is connected with the controller, the other end of the switch module is connected with one end of the diode, the other end of the diode is connected with the direct current power supply voltage, and the diode is connected with the rotating motor in parallel so as to control whether the direct current power supply voltage supplies power for the rotating motor or not when the controller outputs a high/low level control signal.
Preferably, the sampling circuit comprises a sampling resistor and an operational amplifier; the sampling resistor is arranged between the rotating motor and the input end of the operational amplifier; the output end of the operational amplifier is connected with the controller.
Preferably, the first preset time is a time for compensating the output power of the portion exceeding the rated power in a time from when the operating current exceeds the rated current to when the power supply is turned off.
Preferably, the skin cleaning device comprises a facial cleaner or a body cleaner.
Compared with the prior art, the invention has the following beneficial effects:
(1) After detecting that the working current reaches or exceeds the locked-rotor current, the controller of the invention sends a control signal to the power switch circuit to control the power voltage of the rotating motor to be cut off, and when the power-off time of the rotating motor reaches a first preset time, the controller controls the power voltage of the rotating motor to be switched on, so that the protection of the rotating motor can be realized by automatically switching off when the rotating motor is locked-rotor, and the rotation can be automatically recovered when the locked-rotor is released, thereby improving the experience of a user;
(2) The first preset time is the time for compensating the output power of the part exceeding the rated power in the time from the working current exceeding the rated current to the power-off, so that the power-off time controlled according to the first preset time can ensure that the motor is not overheated due to repeated restarting on one hand, and can ensure that the motor is recovered to rotate as soon as possible, thereby meeting the requirements of users on the other hand;
(3) After the number of times of locked rotor reaches the preset number of times, namely, the preset number of times of repeated automatic restarting is not automatically connected with the power supply voltage any more, the user executes manual starting, and the damage of the device is prevented.
The foregoing description is only an overview of the present invention, and is intended to provide a more clear understanding of the technical means of the present invention, so that it may be carried out in accordance with the teachings of the present specification, and to provide a more complete understanding of the above and other objects, features and advantages of the present invention, as exemplified by the following detailed description.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a basic flow chart of a control method of a skin cleansing device according to an embodiment of the present invention;
FIG. 2 is a method for obtaining a first preset time according to an embodiment of the present invention;
FIG. 3 is a detailed flowchart of a control method of the skin cleansing apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a first preset time compensation of a control method according to an embodiment of the present invention;
fig. 5 is a circuit diagram of a skin cleansing device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present invention are within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "engaged/connected," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, may be a detachable connection, or may be an integral connection, may be a mechanical connection, may be an electrical connection, may be a direct connection, may be an indirect connection via an intermediary, may be a communication between two elements, and for one of ordinary skill in the art, the specific meaning of the terms in this disclosure may be understood in a specific case.
Referring to fig. 1, a control method of a skin cleaning device according to the present embodiment includes:
s101, acquiring working current of a rotating motor of a skin cleaning device in real time;
s102, after detecting that the working current reaches or exceeds the locked-rotor current, sending a control signal to the power switch circuit to control the power voltage of the rotary motor to be cut off, and accumulating the times of cutting off the power voltage;
and S103, when the cut-off times of the power supply voltage do not reach the preset times and the cut-off time of the power supply of the rotating motor reaches the first preset time, controlling to switch on the power supply voltage of the rotating motor.
In this embodiment, the control method is implemented on the controller. The locked-rotor current may be set to three times the idling current of the rotating electrical machine. The preset times, the first preset time and the value of the locked-rotor current are prestored in the controller.
Specifically, the first preset time is a time for compensating the output power of the part exceeding the rated power in a time from when the working current exceeds the rated current to when the power supply is cut off.
Further, referring to fig. 2, the method for obtaining the first preset time is specifically as follows:
s201, acquiring the total output power of the rotating motor in the time from when the working current of the rotating motor exceeds the rated current to when the power supply is cut off;
s202, obtaining the equivalent total rated power of the rotating motor in the time from the working current of the rotating motor exceeding the rated current to the power cut-off;
and S203, performing difference on the total output power and the total rated power, and dividing the total output power and the total rated power by rated power in unit time to obtain the first preset time.
Referring to FIGS. 3 and 4, in the present embodiment, the ratio is 0 to t 0 The rotating motor works normally in time, at t 0 Starting the motor over-rated power operation (the power is equal to the product of the voltage of the sampling point and the working current, namely the product of the power supply voltage and the working current, and since the power supply voltage of the motor is kept unchanged, the over-rated power, namely the working current exceeds the rated current) at the moment, and at t n And when the motor reaches the judgment value of the locked rotor power (the locked rotor current), the motor power supply voltage is controlled to be cut off. t is t 0 ～t n Each interval time of the motor is the interval time T which is set by a program and used for collecting the working power of the motor S The method comprises the following steps:
T S ＝t 1 -t 0 ＝t 2 -t 1 ＝......＝t n -t n-1
further, the total output power of the rotating electrical machine is expressed as follows:
W total ＝(t 1 -t 0 )*P 1 +(t 2 -t 1 )*P 2 +......+(t n -t n-1 )*P n
＝T S *(P 1 +P 2 +......+P n )
wherein W is total Representing the total output power; t (T) S Representing a sampling period; p (P) 1 、P 2 、……、P n Output power of a single sampling period of the rotating motor is respectively represented and is equal to the product of the working current and the power supply voltage of the rotating motor;
the total rated power equivalent to the rotating electrical machine is expressed as follows:
W r ＝n*T S *P r
wherein W is r Indicating the total rated power, n indicating the number of samples from the time when the operating current exceeds the rated current to the time when the power supply is turned off; p (P) r Representing the rated power of a single sampling period, which is equal to the product of the rated current of the rotating electrical machine and the power supply voltage;
w exceeding the rated power portion over Equal to:
W over ＝W total -W r
＝T S *(P 1 +P 2 +......+P n )-n*T S *P r
in order to make excess power W over Is compensated, the power of the compensation part is set as W offset W to be compensated for offset ≥W over 。
Due to rated power P r Let the compensation time be T a 。
W is then offset ＝P r *T a
Namely P r *T a ≥W over
The method can obtain:
T a ≥(T S *(P 1 +P 2 +......+P n )-n*T S *P r )/P r
from p=ui (U is the motor supply voltage, which remains unchanged) again:
T a ≥U*(T S *(I 1 +I 2 +......+I n )-n*T S *I r )/I r
wherein n represents the sampling number of the program from exceeding the rated power to judging that the locked-rotor occurs, T S Representing a sampling interval; i 1 ～I n Indicating the working current, rated current I of each sampling point r To know the parameters, it can be deduced that after the occurrence of the locked-rotor, at T a ＝U*(T S *(I 1 +I 2 +......+I n )-n*T S *I r )/I r When the motor is in operation, the motor can be ensured not to overheat,but also can ensure that the motor can be used rapidly after locked.
Will T a ＝U*(T S *(I 1 +I 2 +......+I n )-n*T S *I r )/I r T obtained a As a first preset time.
Specifically, in fig. 3, the number of locked rotations N and the number of samplings N are initialized to 0, and then the working current is collected, if the working current I n Greater than or equal to rated current I r Then the sampling frequency n is added with 1 to further judge the working current I n Whether or not to be greater than or equal to the locked-rotor current I s (locked rotor current I) s Can be set to be more than three times of the no-load current of the motor), if the motor is stopped, the motor stall number is increased by 1, when the stall number reaches the preset number of times of 10 times, the power supply is not restarted automatically, the manual starting of a user is waited, and if the stall number does not reach the preset number of times of 10 times, the needed stopping time T is calculated a The rotating electrical machine is stopped for a first preset time T a When the power supply voltage is controlled to be on.
Further, before the sending the control signal to the power switch circuit to control the power voltage of the rotating motor to be cut off, the method further comprises:
and judging whether the duration time of the working current reaching or exceeding the locked-rotor current exceeds a second preset time.
Because the motor burns out generally due to long-time locked rotor, the interior of the motor continuously generates heat with high current, and therefore, the second preset time is a shorter value, and the time can be 1-2 s.
In another aspect, referring to fig. 5, a skin cleansing device comprises: a controller 10, a rotating electric machine 13, a sampling circuit 11, and a power switching circuit 12;
the sampling circuit 11 is configured to sample a voltage of a point and send the voltage of the sampling point to the controller 10, or to acquire an operating current of the rotating electrical machine 13 and send the operating current to the controller 10;
the power switch circuit 12 is configured to receive a control signal pwm_moto_con sent by the controller 10, so as to switch off or switch on a power supply voltage bat_out of the rotating electrical machine 13;
the controller 10 is configured to receive the working current sent by the sampling circuit 11, or convert the working current into the working current after receiving the voltage of the sampling point sent by the sampling circuit 11; the control circuit is further configured to send a control signal pwm_moto_con to the power switch circuit 12 to control the power supply voltage bat_out of the rotating electric machine 13 to be cut off after detecting that the working current reaches or exceeds the locked-rotor current, and to accumulate the number of times of cutting off the power supply voltage bat_out; and controlling to turn on the power supply voltage bat_out of the rotating electrical machine 13 when the turn-off number of the power supply voltage bat_out does not reach the preset number and the turn-off time of the power supply voltage bat_out of the rotating electrical machine 13 reaches the first preset time.
In this embodiment, the power switching circuit 12 includes a switching module and a diode D16; one end of the switch module is connected to the controller 10, the other end is connected to one end of the diode D16, the other end of the diode D16 is connected to the dc power supply voltage bat_out, and the diode D16 is connected in parallel to the rotating electric machine 13, so as to control whether the dc power supply voltage bat_out supplies power to the rotating electric machine 13 when the controller 10 outputs the high/low level control signal pwm_moto_con.
Specifically, when the control signal pwm_moto_con outputs a high level, the switch module is turned on, and the power supply voltage bat_out supplies power to the rotating electric machine 13; when the control signal pwm_moto_con outputs a low level, the switching module is turned off, and the power supply voltage bat_out does not supply power to the rotary electric machine 13.
In this embodiment, the sampling circuit 11 includes a sampling resistor and an operational amplifier U4; the sampling resistors R36 and R37 are arranged between the rotating motor 13 and the input end of the operational amplifier U4; the output end of the operational amplifier U4 is connected with the controller 10.
Specifically, the method for obtaining the voltage of the sampling point by the sampling circuit 11 includes: the voltage of the sampling point (R36 parallel R37 (R36// R37)) is obtained, amplified by the operational amplifier U4 and then connected to the controller 10 (main control chip), the main control chip obtains the amplified voltage and then reversely pushes (divided by amplification multiple) the amplified voltage to calculate the voltage of the R36, and the current passing through the R36 parallel R37 (R36// R37) can be obtained by calculating the voltage at two ends of the R36 parallel R37 (R36// R37) and dividing the voltage by the resistance of the R36 parallel R37 (R36// R37). Since the current through the op-amp is very small, it is negligible compared to the motor current, i.e. the pass (R36 parallel R37 (R36// R37)) is the operating current through the motor.
The switch module is a MOS transistor Q2, a gate of the MOS transistor Q2 is connected to an output terminal of the control signal pwm_moto_con of the controller 10, a source of the MOS transistor Q2 is grounded through sampling resistors R36 and R37 connected in parallel, a drain of the MOS transistor Q2 is connected to an anode of a diode D16, a cathode of the diode D16 is connected to a power supply voltage bat_out, and the diode D16 is connected in parallel to the rotating motor 13. The source electrode of the MOS tube Q2 is also connected with the input end of the operational amplifier U4 through a resistor R32, and the output end of the operational amplifier U4 is connected with the sampling end of the controller 10.
In this embodiment, the motor has a reverse electromotive force (reverse voltage) when the switch module is turned off, and the diode D16 is used to eliminate the reverse electromotive force reverse voltage.
Further, the first preset time is a time for compensating the output power of the part exceeding the rated power in a time from when the working current exceeds the rated current to when the power supply is cut off.
The specific calculation method of the first preset time is referred to as a control method of the skin cleaning device, and will not be repeated here.
Further, the skin cleaning device of the present embodiment may be used for a facial cleanser or a body cleanser for cleaning the body.
Furthermore, the invention provides a skin cleaning device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of the control method of the skin cleaning device when executing the program.
Specifically, the processor is configured to:
acquiring working current of a rotating motor of the skin cleaning device in real time;
when the working current is detected to reach or exceed the locked-rotor current, a control signal is sent to the power switch circuit to control the power voltage of the rotary motor to be cut off, and the frequency of cutting off the power voltage is accumulated;
when the cut-off times of the power supply voltage do not reach the preset times and the cut-off time of the power supply of the rotating motor reaches the first preset time, the power supply voltage of the rotating motor is controlled to be switched on.
In this embodiment, the memory and the processor may be integrated on the controller, and implemented by the controller.
The above description is only of the preferred embodiments of the present invention; the scope of the invention is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present invention, and the technical solution and the improvement thereof are all covered by the protection scope of the present invention.
Claims (10)
1. A control method of a skin cleaning device, characterized by comprising:
acquiring working current of a rotating motor of the skin cleaning device in real time;
when the working current is detected to reach or exceed the locked-rotor current, a control signal is sent to the power switch circuit to control the power supply of the rotating motor to be cut off, and the frequency of cutting off the power supply is accumulated;
when the cutting-off times of the power supply do not reach the preset times and the cutting-off time of the power supply of the rotating motor reaches the first preset time, the power supply of the rotating motor is controlled to be connected.
2. The control method of a skin cleansing apparatus according to claim 1, wherein the first preset time is a time for compensating for an output power exceeding a rated power portion in a time from when the operating current exceeds the rated current to when the power supply is turned off.
3. The method for controlling a skin cleansing apparatus according to claim 2, wherein the method for obtaining the first preset time is specifically as follows:
acquiring the total output power of the rotating motor in the time from when the working current of the rotating motor exceeds the rated current to when the power supply is cut off;
acquiring the equivalent total rated power of the rotating motor in the time from the working current of the rotating motor exceeding the rated current to the power cut-off;
and making a difference between the total output power and the total rated power, and dividing the difference by the rated power in unit time to obtain the first preset time.
4. A control method of a skin cleaning device according to claim 3, characterized in that the total output power of the rotating electrical machine is expressed as follows:
W total ＝T S *(P 1 +P 2 +......+P n )
wherein W is total Representing the total output power; t (T) S Representing a sampling period; p (P) 1 、P 2 、……、P n The output power of each sampling period of the rotating motor is equal to the product of the working current of the rotating motor and the power supply voltage;
the total rated power equivalent to the rotating electrical machine is expressed as follows:
W r ＝n*T S *P r
wherein W is r Indicating the total rated power, n indicating the number of samples from the time when the operating current exceeds the rated current to the time when the power supply is turned off; p (P) r Representing the rated power of a single sampling period, which is equal to the product of the rated current of the rotating electric machine and the voltage of the power supply;
the first preset time is expressed as follows:
T a ＝(W total -W r )/P r
wherein T is a Indicating a first preset time.
5. The method of controlling a skin cleansing apparatus according to claim 1, wherein before said sending a control signal to said power switch circuit controls cutting off the power supply to the rotating electric machine, further comprising:
and judging whether the duration time of the working current reaching or exceeding the locked-rotor current exceeds a second preset time.
6. A skin cleansing device comprising: the device comprises a controller, a rotating motor, a sampling circuit and a power switch circuit;
the sampling circuit is used for acquiring the voltage of the sampling point and sending the voltage of the sampling point to the controller, or is used for acquiring the working current of the rotating motor and sending the working current to the controller;
the power switch circuit is used for receiving a control signal sent by the controller so as to cut off or switch on the power supply voltage of the rotating motor;
the controller is used for receiving the working current sent by the sampling circuit or converting the working current into the working current after receiving the voltage of the sampling point sent by the sampling circuit; the power switch circuit is also used for detecting that the working current reaches or exceeds the locked-rotor current, then sending a control signal to the power switch circuit to control the power supply of the rotating motor to be cut off, and accumulating the times of cutting off the power supply; and the power supply control unit is used for controlling the power supply of the rotating motor to be turned on after the turn-off times of the power supply do not reach the preset times and the turn-off time of the power supply of the rotating motor reaches the first preset time.
7. The skin cleansing device of claim 6 wherein the power switching circuit comprises a switching module and a diode; one end of the switch module is connected with the controller, the other end of the switch module is connected with one end of the diode, the other end of the diode is connected with a direct current power supply, and the diode is connected with the rotating motor in parallel so as to control whether the direct current power supply supplies power to the rotating motor or not when the controller outputs a high/low level control signal.
8. The skin cleansing device of claim 6 wherein the sampling circuit comprises a sampling resistor and an operational amplifier; the sampling resistor is arranged between the rotating motor and the input end of the operational amplifier; the output end of the operational amplifier is connected with the controller.
9. The skin cleansing device of claim 6 wherein the first predetermined time is a time to compensate for the output power of the portion exceeding the rated power for a time from when the operating current exceeds the rated current to when the power source is turned off.
10. The skin cleansing device of claim 6 wherein the skin cleansing device comprises a facial cleanser or a body cleanser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405190.1A CN116158680A (en) | 2021-11-24 | 2021-11-24 | Control method of skin cleaning device and skin cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111405190.1A CN116158680A (en) | 2021-11-24 | 2021-11-24 | Control method of skin cleaning device and skin cleaning device |
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| CN206233323U (en) * | 2016-11-14 | 2017-06-09 | 深圳市爱家福智能家居有限公司 | Food refuse disposer |
| CN207940840U (en) * | 2017-05-04 | 2018-10-09 | 深圳德技医疗器械有限公司 | A kind of skin cleaning instrument with rotating speed self-regulating function |
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| WO2019233001A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳市道通智能航空技术有限公司 | Overcurrent stalling protection method and apparatus for electric motor, and electronic speed regulator and unmanned aerial vehicle |
| 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 |
| CN111965411A (en) * | 2020-07-20 | 2020-11-20 | 四川虹美智能科技有限公司 | Refrigerator locked-rotor protector verification device, method and system |
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| CN206233323U (en) * | 2016-11-14 | 2017-06-09 | 深圳市爱家福智能家居有限公司 | Food refuse disposer |
| CN207940840U (en) * | 2017-05-04 | 2018-10-09 | 深圳德技医疗器械有限公司 | A kind of skin cleaning instrument with rotating speed self-regulating function |
| WO2019233001A1 (en) * | 2018-06-06 | 2019-12-12 | 深圳市道通智能航空技术有限公司 | Overcurrent stalling protection method and apparatus for electric motor, and electronic speed regulator and unmanned aerial vehicle |
| CN108712114A (en) * | 2018-07-24 | 2018-10-26 | 杭州星帅尔电器股份有限公司 | Intelligent motor starter and its control method |
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