CN113813069A - Tooth rinsing device and fluid control method thereof - Google Patents
Tooth rinsing device and fluid control method thereof Download PDFInfo
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- CN113813069A CN113813069A CN202111016114.1A CN202111016114A CN113813069A CN 113813069 A CN113813069 A CN 113813069A CN 202111016114 A CN202111016114 A CN 202111016114A CN 113813069 A CN113813069 A CN 113813069A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C15/00—Devices for cleaning between the teeth
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/02—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication
- A61C17/028—Rinsing or air-blowing devices, e.g. using fluid jets or comprising liquid medication with intermittent liquid flow
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D13/00—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover
- G05D13/62—Control of linear speed; Control of angular speed; Control of acceleration or deceleration, e.g. of a prime mover characterised by the use of electric means, e.g. use of a tachometric dynamo, use of a transducer converting an electric value into a displacement
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
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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
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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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- General Health & Medical Sciences (AREA)
- Dentistry (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a tooth rinsing device and a fluid control method of the tooth rinsing device, and belongs to the technical field of tooth cleaning devices. The tooth flushing device comprises a motor, a pump and a control module; the pump is connected with the motor and driven by the motor; the control module is configured to detect the electrical load of the motor and judge whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load; the control module is configured to cause a rotational speed of the motor to be lower when in an unloaded state than when in a loaded state, and the rotational speed of the motor to be greater than zero when in the unloaded state. The tooth flusher and the fluid control method of the tooth flusher can reduce the rotating speed of the tooth flusher during idling, reduce the noise generated during the movement of the motor, the pump and the transmission structure between the motor and the pump, and improve the experience of the tooth flusher during idling.
Description
Technical Field
The invention relates to the technical field of tooth cleaning devices, in particular to a tooth rinsing device and a fluid control method of the tooth rinsing device.
Background
In the prior art, either a hand-held or a stand-type dental irrigator generally comprises a housing, a pump, a reservoir, a motor, a nozzle, a control circuit board and related fluid lines. The motor and the pump driven by the motor are both arranged in the accommodating cavity enclosed by the shell and directly or indirectly carried by the shell. The water pumped out from the liquid storage tank by the pump is sprayed out from the sharp mouth end of the spray pipe in a pulse water flow mode, and then teeth, slits between teeth, gums or tongues are cleaned.
The user generally can start under no-load, anhydrous state and experience after unsealing the tooth ware of purchasing, and tooth ware that washes among the prior art starts under no-load, anhydrous state and uses the noise very big, and user's experience is very poor. In addition, in the process of using the tooth flushing device normally under a load, if water in the liquid storage tank is completely absorbed, the noise is increased, and the use experience is also influenced.
Therefore, there is a need for a tooth rinsing device and a fluid control method thereof, which can reduce the noise of the tooth rinsing device during idle operation and improve the user experience.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a tooth flusher and a fluid control method of the tooth flusher, which can make the tooth flusher have lower noise when no load exists and improve the experience of a user.
In order to solve the technical problem, the invention provides a tooth flushing device, which comprises a motor, a pump and a control module; the pump is connected with the motor and driven by the motor; the control module is configured to detect the electrical load of the motor and judge whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load; the control module is configured to cause a rotational speed of the motor to be lower when in an unloaded state than when in a loaded state, and the rotational speed of the motor to be greater than zero when in the unloaded state.
In order to solve the technical problem, the invention provides a fluid control method of a tooth flushing device, which comprises the following steps: A. starting the motor; B. the control module detects an electrical load of the motor; C. the control module judges whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load; D. if the load state is detected, the control module enables the motor to operate at the working rotating speed; E. if the motor is in the idle state, the control module enables the motor to run at an idle rotation speed, and the idle rotation speed is larger than zero and lower than the working rotation speed.
The invention has the beneficial effects that:
the invention discloses a tooth flusher and a fluid control method of the tooth flusher, wherein the tooth flusher comprises a motor, a control module, a motor, a working speed control module, a pump, a transmission structure and a power consumption control module, wherein the control module is used for detecting the electric load of the motor, judging whether the tooth flusher is in a load state or an idle state according to the size of the electric load, then respectively enabling the motor to correspondingly rotate at the working speed and the idle speed according to the load state and the idle state, and enabling the idle speed in the idle state to be lower than the working speed in the load state, so that the rotating speed of the tooth flusher in the idle state is reduced, the noise generated in the motion process of the motor, the pump and the transmission structure between the motor and the pump is reduced, the power consumption in the idle state can be obviously reduced, and the experience feeling of the tooth flusher in the idle state is obviously improved and the energy consumption is also reduced.
Drawings
FIG. 1 is a schematic structural diagram of the main modules of the tooth irrigator of the present invention;
FIG. 2 is a schematic circuit diagram of the motor driving unit, the detecting unit and the enabling module of the tooth irrigator according to the present invention;
FIG. 3 is a schematic circuit diagram of the processing unit of the water toothpick device of the present invention;
FIG. 4 is a schematic circuit diagram of a display module of the tooth irrigator according to the present invention;
FIG. 5 is a schematic circuit diagram of a button module of the tooth irrigator according to the present invention;
FIG. 6 is a schematic diagram of a power supply circuit of the tooth irrigator of the present invention;
FIG. 7 is a flow chart of a first embodiment of a method for controlling a fluid in a dental irrigator;
FIG. 8 is a flow chart of a second embodiment of a fluid control method for the dental irrigator;
FIG. 9 is a flow chart of a third embodiment of a fluid control method for the dental irrigator.
Detailed Description
The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully explain the objects, the features and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connection relations referred to in the patent do not mean that the components are directly connected, but mean that a better connection structure can be formed by adding or reducing connection auxiliary components according to the specific implementation conditions. The technical characteristics of the invention can be combined interactively on the premise of not conflicting with each other.
Fig. 1 shows a schematic diagram of the main module structure of the tooth irrigator of the invention. The tooth flushing device comprises a motor 1, a pump 3 and a control module 2; the pump 3 is directly or indirectly connected with the motor 1 and is directly or indirectly driven by the motor 1; the control module 2 is configured to detect the electrical load of the motor 1, and judge whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load; the control module 2 is further configured to cause the rotation speed of the motor 1 in the unloaded state to be lower than the rotation speed in the loaded state, and the rotation speed of the motor 1 in the unloaded state to be greater than zero. The structures of the spray pipe, the liquid storage tank, the shell and the like are conventional structural parts of the tooth flushing device, and are not described in detail in the embodiment. In the idle state, the liquid storage tank of the tooth flushing device has no available water volume for suction; in the loaded state, the reservoir holds a volume of water available for suction. In the load state, the electric load of the motor driving the pump to operate is obviously higher than that in the no-load state, so that whether the tooth flushing device is in the load state or the no-load state can be judged according to the magnitude of the electric load.
Preferably, the control module 2 is configured to detect the electrical load of the motor 1 from the current of the motor 1. The current of the motor 1 is approximately in positive correlation with the resistance force borne by the pump 3 during operation and the torque of the motor 1, and the detection of the current of the motor 1 can accurately judge whether the dental irrigator is in a load state or an idle state.
The control module 2 may be constituted by a single unit or by a plurality of units assembled. For example, the control module 2 may comprise a first subunit configured to detect the current consumption of the motor 1, a second subunit controlling the rotation speed of the motor 1 and a third subunit determining the current magnitude and sending control instructions to the second subunit. Alternatively, the third subunit may integrate the function of the second subunit, which directly controls the rotational speed of the motor 1. Of course, in different embodiments, the number and functions of the foregoing sub-units may also be adjusted as long as the control module 2 can be ensured to realize the corresponding detection, judgment and control functions.
In this embodiment, the control module 2 is a PCB (printed circuit board) that assembles a plurality of units, and includes a motor driving unit 21, a detection unit 22, and a processing unit 23. The detection unit 22 is configured to detect the current of the motor driving unit 21 to obtain a current sampling value, the processing unit 23 performs comparison processing on the current sampling value to judge whether the tooth irrigator is in a load state or an idle state, and the motor driving unit 21 adjusts the rotating speed of the motor 1 under the action of a control signal of the processing unit 23. Specifically, the motor drive unit 21 is signal-connected to the motor 1; the detection unit 22, the motor driving unit 21 and the processing unit 23 are in signal connection; the detection unit 22 detects the working current of the motor driving unit 21 to obtain a current sampling value, and sends the current sampling value to the processing unit 23 in a feedback signal mode, and the processing unit 23 processes the feedback signal to judge whether the tooth irrigator is in a load state or an idle state; after the processing unit 23 determines the state of the tooth irrigator, a corresponding control signal is sent to the motor driving unit 21, and the motor driving unit 21 adjusts the rotating speed of the motor 1 under the action of the control signal of the processing unit 23. Preferably, the processing unit 23 outputs a first control signal to the motor driving unit 21 to make the motor 1 run at the working rotation speed under the driving of the motor driving unit 21 in the load state; the processing unit 23 outputs a second control signal to the motor driving unit 21 when in the idle state to make the motor 1 run at the idle rotation speed under the driving of the motor driving unit 21; the idling speed is greater than zero and lower than the working speed. Because the no-load rotating speed is lower than the working rotating speed, the noise generated in the moving process of the motor 1, the pump 3 and the transmission structure between the motor 1 and the pump 3 when the tooth flusher runs in the no-load mode is lower than that generated when the tooth flusher runs in the load mode, and the no-load rotating speed is larger than zero, so that the phenomenon that a user thinks that the tooth flusher has faults can be avoided.
In the working process of the tooth flushing device in the no-load state and the load state, the current of the motor 1 is different, the motor 1 is driven by the motor driving unit 21, and the detection unit 22 detects the loop current of the motor driving unit 21 in real time, namely the current of the motor 1 can be detected. The processing unit 23 may comprise one or more control chips receiving, or processing, or executing instructions, with at least one empty load threshold being provided within the processing unit 23. Specifically, the detection unit 22 compares the current sample value feedback signal sent to the processing unit 23 with an idle threshold value to determine whether the dental irrigator is in a loaded state or an idle state. In the preferred embodiment, the current sampling value feedback signal is a level signal, and in a different embodiment, other signals and the like different from the present embodiment may be used as the feedback signal for feedback, as long as the feedback signal can satisfy the comparison with the idle threshold in the processing unit 23 for idle and load determination. The processing unit 23 outputs a corresponding control signal to the motor driving unit 21 after making the status determination, thereby controlling the operating speed of the motor 1.
Generally, the tooth flushing device can be provided with a plurality of gears, and when the tooth flushing device works in different gears under a load state, the rotating speed, the power, the voltage and the current of a motor are different. For example, the tooth flushing device has three gears, the water flow pressure is respectively the first gear (low), the second gear (medium) and the third gear (high) from low to high, and the motor is respectively and correspondingly provided with a first working rotating speed (low), a second working rotating speed (medium) and a third working rotating speed (high). In a preferred embodiment, the idling speed is lower than the lowest of all the aforementioned operating speeds, i.e. the idling speed is lower than the first operating speed.
The number of idle thresholds provided in the processing unit 23 is preferably one, and only this idle threshold is required to be able to distinguish between an idle state and a load state with the lowest operating speed, and naturally, between an idle state and other load states with higher operating speeds. Of course, the idle threshold may be multiple, for example, the idle threshold matches with the number of the tooth irrigator steps, and the value of the idle threshold set in the processing unit 23 changes with the change of the tooth irrigator steps.
In the preferred embodiment, the idle threshold is a single value. Of course, the idle threshold may be a discrete value or a range of values. When the idle threshold is configured as a numerical range, the control module 2 sends a first control signal if the feedback signal is greater than the upper limit of the idle threshold range, and sends a second control signal if the feedback signal is less than the lower limit of the idle threshold range. The no-load threshold value is a numerical range and has the following functions: a 'buffer area' can exist between the first control signal and the second control signal sent by the processing unit 23, and the adaptability of the processing unit 23 to the load fluctuation and the judgment accuracy of the water pumping in the working process of the tooth flusher can be improved.
FIG. 2 is a schematic circuit diagram of the motor driving unit, the detecting unit and the enabling module of the tooth irrigator according to the present invention. In the present embodiment, the detection unit 22 specifically includes a current sampling resistor 221 and an operational amplifier circuit 223; the current sampling resistor 221 is connected in series between the motor driving unit 21 and the ground of the tooth flusher control circuit for detecting the working current in the circuit of the motor driving unit 21. Specifically, in practical applications, the U5 in the motor driving unit 21 may use an operational amplifier chip with a device model LX321, and one end of the current sampling resistor 221 is in signal connection with the 1 st pin and the 4 th pin of the U5, and the other end is connected to the ground of the circuit. The input end of the operational amplifier circuit 223 is in signal connection with one end of the current sampling resistor 221, which is in signal connection with the motor driving unit 21, so as to obtain the voltage value on the current sampling resistor 221; the output of the operational amplifier circuit 223 is in signal connection with the processing unit 23 for sending a feedback signal to the processing unit 23. Optionally, a signal connection is made between the current sampling resistor 221 and the input terminal of the operational amplifier circuit 223 through the RC filter circuit 222. Specifically, in practical applications, the current sampling resistor 221 may use a resistor with a small resistance value, such as 0.01 ohm; an operational amplifier chip with the device model number of LX321 can be used as U6 in the operational amplifier circuit 223, the 1 st pin of U6 is a positive input pin, and the 4 th pin of U6 is a signal output pin; pin 1 of U6 is in signal connection with current sampling resistor 221 via RC filter circuit 222, and pin 4 of U6 is in signal connection with processing unit 23.
In practical use, when the tooth flusher is in a load state and an idle state, a load current and an idle current flow through the motor driving unit 21 of the tooth flusher control circuit, corresponding voltage differences are generated between two ends of the current sampling resistor 221, a voltage detected by the 1 st pin of U6 in the operational amplifier circuit 223 is amplified by the U6, and the voltage is output by the 4 th pin of U6 as a feedback signal of the load or the idle to the processing unit 23.
Fig. 3 is a schematic circuit diagram of the processing unit 23 of the water toothpick device of the present invention. Referring to fig. 3, in the present embodiment, in practical application, the U1 in the processing unit 23 of the tooth flusher control circuit may use an MCU, the 5 th pin of U1 is a motor state control pin, and the 6 th pin of U1 is a load state detection pin. The 5 th pin of U1 is in signal connection with the motor drive unit 21, and the 6 th pin of U1 is in signal connection with the signal output pin of U6 in the operational amplifier circuit 223. When the 6 th pin of the processing unit 23 receives a feedback signal sent from the signal output pin of U6 in the operational amplifier circuit 223 and the feedback signal is lower than the idle-load threshold, the processing unit 23 determines that the idle-load feedback signal is received, and at this time, the processing unit 23 sends an idle-load voltage signal to the motor driving unit 21 through the 6 th pin of U1 to make the motor 1 of the tooth flusher operate at an idle-load rotation speed; when the 6 th pin of the processing unit 23 receives a feedback signal from the signal output pin of U6 in the operational amplifier circuit 223 and the feedback signal is higher than the idle threshold, the processing unit 23 determines that the load feedback signal is received, and at this time, the processing unit 23 sends a load voltage signal to the motor driving unit 21 through the 6 th pin of U1 to make the motor 1 of the dental irrigator operate at the working speed.
Referring to fig. 2, in the present embodiment, in particular, in practical application, a field effect transistor chip with a device model number of 9926A may be used as U5 in the motor driving unit 21. Pin 3 and pin 5 of U5 are inputs of the motor driving circuit 2, and an input of the motor driving unit 21 is connected to pin 5 of U1 in the processing unit 23; pin 8 of U5 is the output of motor drive unit 21, and the output of motor drive unit 21 is connected to the negative pole of motor 1. In the present embodiment, when the processing unit 23 determines that the no-load or load feedback signal is received, the processing unit 23 outputs a no-load or working voltage to the motor driving circuit 2 to adjust the rotation speed of the motor 1; the processing unit 23 controls the rotation speed of the driving motor 1 by PWM (Pulse Width Modulation), and in this embodiment, the no-load duty ratio of the tooth flushing device may be set to not more than 30% to rapidly reduce the rotation speed of the driving motor 1, so that the noise reduction effect is obvious. The pulse width value and the duty ratio of the no-load voltage can be set according to the actual noise reduction effect requirement of the tooth flushing device. For example, in other embodiments, the duty cycle of the no-load drive voltage of the dental irrigator may be set to not exceed 20% or 25%. For example, in the third gear dental irrigator of the previous embodiment, the first gear duty cycle may be set to 60%, the second gear duty cycle may be set to 70%, the third gear duty cycle may be set to 80%, and the no-load state duty cycle may be set to 25% or 30%.
To ensure a good experience when the user is powered on, the control module 2 is preferably configured to operate the motor 1 at a predetermined initial speed when the motor 1 is powered on, the initial speed being lower than the load speed and greater than zero. Further, the initial rotation speed is lower than or equal to the idling rotation speed, so that the effect is better. In the preferred embodiment, the initial rotation speed is equal to the no-load rotation speed, and if the processing unit determines that the tooth-rinsing device is in the no-load state when initially started, the motor 1 keeps the no-load rotation speed, so as to avoid the frequent rotation speed change of the motor 1 from causing the user to mistakenly think that the tooth-rinsing device fails.
The rotation speed of the motor 1 is mainly affected by the voltage and power during the operation, and in order to adjust the rotation speed of the motor 1, it is preferable in the present embodiment to adjust the voltage of the motor 1 by PWM. Specifically, the control module 2 is configured to send to the motor 1 a no-load voltage in the no-load state and a load voltage in the load state, the no-load voltage being lower than the load voltage. Likewise, the control module 2 is configured to send a predetermined initial voltage to the motor 1 when the motor 1 is started, and the initial voltage is lower than the load voltage. Further, the motor 1 initial voltage is lower than or equal to the no-load voltage.
Of course, the adjustment of the rotation speed can also be realized by adjusting the power of the motor 1. In particular, the control module 2 is configured to put the motor 1 at idle power when in an idle state and to put the motor 1 at load power when in a load state, the idle power being lower than said load power. The control module 2 is configured to bring the motor 1 at an initial power at its start, and the initial power is lower than the load power. Further, the initial power of the motor 1 is lower than or equal to said no-load power.
The control module may be configured to gradually adjust the rotation speed, or the output power or voltage of the motor 1, or may be adjusted in a stepwise manner.
As shown in fig. 2, optionally, in actual use, the tooth irrigator may further comprise an enabling module 4. The enabling module 4 is in signal connection with the processing unit 23 and in signal connection with the detection unit 22; the processing unit 23 enables or disables the detection unit 22 to detect the operating current of the motor driving unit 21 in real time through the enabling module 4. Referring to fig. 6, in practical use, a MOS field effect transistor with a device model AO3401 may be used as Q1 in the enabling module 4. The source of the Q1 in the enable module 4 is in signal connection with the positive power connection pin of the detection unit 22 through a resistor, and the drain of the Q1 is in signal connection with the positive power connection pin of the detection unit 22; the gate of Q1 is in signal connection with the positive power supply of detection unit 22 through a resistor; the processing unit 23 is in signal connection with the gate of Q1 through a resistor to control the on/off of Q1.
In this embodiment, the tooth rinsing device further includes a display module and a key module, and the display module and the key module are in signal connection with the processing unit 23. Referring to fig. 3 to 5, the display module includes LED lamp set modules D11-D17, which are controlled by the processing unit 23 to display different working states of the tooth irrigator; the key module comprises S1 and S2, the key is lifted to be at high level, and the key is pressed to be at low level, and the adjustment of different rotating speeds of the motor can be realized through the input of the key module to the processing unit 23.
In the embodiment, in practical use, the tooth irrigator is powered by a rechargeable power supply, and referring to fig. 6, a battery charging management chip with the device model of AF4056 can be used as U3 in the rechargeable power supply circuit. Referring to fig. 2-6, the power source VBAT supplies power to the circuit modules of the tooth irrigator, including: motor 1, motor drive unit 21, detection unit 22, processing unit 23, display module, etc. Alternatively, the dental irrigator may comprise a power cable connected to a mains supply.
Fig. 7 shows a first embodiment of the fluid control method of the tooth flusher. As shown in fig. 7, the fluid control method of the tooth flusher comprises the following steps: A. starting a tooth irrigator motor (S101); B. the control module detects an electrical load (S102) of the motor; C. the control module judges whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load (S103); D. if the load state is detected, the control module enables the motor to rotate at the working rotating speed (S104); E. if the motor is in the no-load state, the control module enables the motor to run at the no-load rotating speed (S105), and the no-load rotating speed is greater than zero and lower than the working rotating speed; the irrigator motor [ S106 ] is turned off.
Fig. 8 shows a second embodiment of the fluid control method of the water toothpick. As shown in fig. 8, the fluid control method of the tooth flusher comprises the following steps: A. starting a tooth irrigator motor (S201); B. the control module detects the electrical load (S202) of the motor, and C, the control module judges whether the tooth flushing device is in a load state or an idle state (S203) according to the magnitude of the electrical load; D. if the load state is detected, the control module enables the motor to rotate at the working rotating speed (S204); E. if the motor is in the no-load state, the control module enables the motor to run at the no-load rotating speed (S205), and the no-load rotating speed is greater than zero and lower than the working rotating speed; F. in a load state, the control module continuously detects the electrical load of the motor [ S206 ]; G. if the load is missing, the control module adjusts the motor to operate at the no-load rotating speed; H. in the no-load state, the control module continuously detects the electric load of the motor [ S207 ]; I. if the load is added, the control module adjusts the motor to operate at the load rotating speed; the irrigator motor [ S208 ] is turned off.
Fig. 9 shows a third embodiment of the fluid control method of the water toothpick. As shown in fig. 9, the fluid control method of the tooth flusher comprises the following steps: A. starting a tooth irrigator motor [ S301 ], and operating the motor at a preset initial rotating speed (the initial rotating speed is preferably equal to the idle rotating speed) which is lower than the load rotating speed and is greater than zero [ S302 ]; B. the detection unit detects the current of the motor driving unit to obtain a current sampling value (S303); C. the processing unit compares the current sampling value with an idle load threshold value to judge whether the tooth flushing device is in a load state or an idle load state (S304); D. if the load state is detected, the processing unit outputs a first control signal (S305) to the motor driving unit, and the motor rotates at a working speed (S306) corresponding to the first control signal; E. if the motor is in the no-load state, the processing unit outputs a second control signal (S307) to the motor driving unit, the motor rotates at the no-load rotating speed (S308) corresponding to the second control signal, and the no-load rotating speed is lower than the working rotating speed; F. in a load state, the detection unit continuously detects the current of the motor driving unit [ S309 ]; G. if the load is missing, the processing unit adjusts the motor to run at the idle speed through the motor driving unit; H. in the no-load state, the detection unit continuously detects the current of the motor driving unit [ S310 ]; I. if the load is added, the processing unit adjusts the motor to rotate at the load rotating speed through the motor driving unit; the irrigator motor [ S311 ] is turned off.
In particular, the reference numerals A, B, C and the like in the steps do not limit the sequence of the steps, but only serve to distinguish the contents of the steps.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (19)
1. The tooth flushing device comprises a motor and a pump; the pump is connected with and driven by the motor; it is characterized by also comprising: a control module configured to detect an electrical load of the motor, determine whether the dental irrigator is in a loaded state or an unloaded state by the magnitude of the electrical load; the control module is configured to cause a rotational speed of the motor in the unloaded state to be lower than a rotational speed in the loaded state, and the rotational speed of the motor in the unloaded state to be greater than zero.
2. The dental irrigator of claim 1, wherein: the control module is configured to detect an electrical load of the motor from a current of the motor.
3. The dental irrigator of claim 1, wherein: the control module comprises a detection unit and a processing unit, the detection unit detects the current of the motor to obtain a current sampling value and sends the current sampling value to the processing unit in a feedback signal mode, a no-load threshold value is arranged in the processing unit, and the processing unit compares the feedback signal with the no-load threshold value to judge whether the tooth flushing device is in a load state or an no-load state.
4. The dental irrigator of claim 1, wherein: the control module includes a detection unit configured to detect a current value of the motor driving unit and a motor driving unit.
5. The dental irrigator of claim 1, wherein: the control module comprises a motor driving unit, a detection unit and a processing unit, wherein the detection unit is configured to detect current of the motor driving unit to obtain a current sampling value and send the current sampling value to the processing unit in a feedback signal mode, the processing unit compares the feedback signal to judge whether the tooth flushing device is in a load or no-load state and sends a corresponding control signal to the motor driving unit, and the motor driving unit adjusts the rotating speed of the motor under the action of the control signal of the processing unit.
6. The dental irrigator of claim 1, wherein: the control module comprises a processing unit and a motor driving unit, wherein the processing unit outputs a first control signal to the motor driving unit in the load state, the motor driving unit drives the motor to operate at a working rotating speed corresponding to the first control signal, the processing unit outputs a second control signal to the motor driving unit in the no-load state, the motor driving unit drives the motor to operate at a no-load rotating speed corresponding to the second control signal, and the no-load rotating speed is lower than the working rotating speed.
7. The dental irrigator according to any one of claims 1 to 6, wherein: upon startup of the motor, the control module is configured to operate the motor at a predetermined initial rotational speed that is less than the load rotational speed and greater than zero.
8. The dental irrigator of claim 7, wherein: the initial rotational speed is lower than or equal to the idling rotational speed.
9. The dental irrigator according to any one of claims 1 to 6, wherein: the control module is configured to place the motor at an idle power when in the idle state and at a load power when in the load state, the idle power being lower than the load power.
10. The dental irrigator of claim 9, wherein: the control module is configured to cause the motor to be at an initial power at its start, the initial power being lower than the load power.
11. The dental irrigator of claim 10, wherein: the initial power is lower than or equal to the no-load power.
12. The dental irrigator according to any one of claims 1 to 6, wherein: the control module is configured to send to the motor an idle voltage when in the idle state and a load voltage when in the load state, the idle voltage being lower than the load voltage.
13. The dental irrigator of claim 12, wherein: the control module is configured to send a predetermined initial voltage to the motor when the motor is started, the initial voltage being lower than the load voltage.
14. The dental irrigator of claim 13, wherein: the initial voltage is less than or equal to the no-load voltage.
15. The fluid control method of the tooth irrigator applied to the tooth irrigator according to any one of claims 1 to 14, characterized by comprising the steps of:
A. starting the motor;
B. the control module detects an electrical load of the motor;
C. the control module judges whether the tooth flushing device is in a load state or an idle state according to the magnitude of the electrical load;
D. if the load state is detected, the control module enables the motor to operate at a working rotating speed;
E. if the idle state is detected, the control module enables the motor to operate at an idle rotation speed, and the idle rotation speed is greater than zero and lower than the working rotation speed.
16. The method of controlling fluid flow in a dental irrigator of claim 15 further comprising the steps of:
F. in the load state, the control module continuously detects the electrical load of the motor;
G. if the load is missing, the control module adjusts the motor to operate at the no-load speed.
17. The method of controlling fluid flow in a dental irrigator of claim 15 further comprising the steps of:
H. in the no-load state, the control module continuously detects the electrical load of the motor;
I. if a load is added, the control module adjusts the motor to operate at the load rotation speed.
18. The method of controlling a dental irrigator fluid according to any one of claims 15 to 17, wherein: in step a, after the motor is started, it is operated at an initial rotation speed lower than the load rotation speed and greater than zero.
19. The method of controlling a dental irrigator fluid according to any one of claims 15 to 17, wherein: in step a, after the motor is started, it is operated at an initial rotation speed equal to the idling rotation speed.
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| CN202111016114.1A CN113813069A (en) | 2021-08-31 | 2021-08-31 | Tooth rinsing device and fluid control method thereof |
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| CN202111016114.1A CN113813069A (en) | 2021-08-31 | 2021-08-31 | Tooth rinsing device and fluid control method thereof |
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| CN202111016114.1A Withdrawn CN113813069A (en) | 2021-08-31 | 2021-08-31 | Tooth rinsing device and fluid control method thereof |
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