Oral cavity cleaning equipment and oral cavity cleaning equipment control method

Abstract

The embodiment of the invention discloses oral cavity cleaning equipment and an oral cavity cleaning equipment control method. The oral cavity cleaning equipment comprises a cleaning assembly, an actuator, a pump assembly and a control unit. The cleaning assembly comprises a first cleaning element used for cleaning the oral cavity in a mechanical friction mode and a second cleaning element used for cleaning the oral cavity in a liquid impact mode. The actuator is coupled with the first cleaning element and is used for driving the first cleaning element to perform oral cavity cleaning operation; the pump assembly is communicated with the second cleaning element and is used for pumping the oral cavity cleaning liquid into the second cleaning element; the control unit is used for controlling the actuator and the pump assembly to operate periodically. In one cleaning period, the actuator and the pump assembly run for the preset duration respectively, and the actuator is started after the pump assembly finishes running for the specified duration, so that the situation that water flow pumped out by the pump assembly under the inertia effect is dispersed is avoided, and the utilization rate of the oral cavity cleaning solution is increased.

Description

Technical Field

[0001] This application relates to the technical field of oral cleaning devices, and particularly to oral cleaning devices and control methods for oral cleaning devices. Background Art

[0002] Currently, the integrated flushing oral cleaning device generally includes a brush head for cleaning the gums and tooth surfaces, and a nozzle for flushing the tooth gaps.

[0003] During the operation of the integrated oral cleaning device, the first driving component can drive the brush head to vibrate or swing, so as to achieve the cleaning function of the gums or tooth surfaces; the second driving component can drive the flushing fluid such as water to spray out from the nozzle, so as to achieve the flushing function of the tooth gaps. Usually, when using the flushing composite function of the integrated oral cleaning device, the first driving component and the second driving component operate simultaneously. However, when the first driving component and the second driving component operate simultaneously, they may interfere with each other, thereby affecting the cleaning effect of the oral cleaning device.

[0004] Based on this, how to improve the cleaning effect of the flushing composite function of the oral cleaning device has become an urgent technical problem to be solved. Summary of the Invention

[0005] The embodiments of this specification provide a nursing device and a protection circuit to solve the problem of charging safety existing in the existing nursing device.

[0006] To solve the above technical problems, the embodiments of this specification are implemented as follows: An oral cleaning device includes: a cleaning component, an actuator, a pump component, and a control unit; The cleaning component includes a first cleaning element and a second cleaning element; the first cleaning element is used to clean the oral cavity in a mechanical friction manner, and the second cleaning element is used to clean the oral cavity in a liquid impact manner; the actuator is coupled to the first cleaning element and is used to drive the first cleaning element to perform oral cleaning operations; the pump component is communicated with the second cleaning element and is used to pump the oral cleaning liquid into the second cleaning element; the control unit is used to control the actuator and the pump component to operate periodically; within one cleaning cycle, the actuator and the pump component each operate for a preset duration, and the actuator is started after a specified duration after the pump component finishes operating.

[0007] A control method for an oral cleaning device, the control method comprising: controlling the actuator and the pump mechanism to operate periodically; within one cleaning cycle, the actuator and the pump assembly each operate for a preset duration, and after the pump assembly finishes operating, the actuator is started after a specified interval; the actuator is coupled to a first cleaning element for driving the first cleaning element to perform an oral cleaning operation; the first cleaning element is configured to clean the oral cavity by mechanical friction; the pump assembly is coupled to a second cleaning element for pumping oral cleaning liquid into the second cleaning element; the second cleaning element is configured to clean the oral cavity by liquid impact.

[0008] At least one embodiment in this specification can achieve the following beneficial effects: The embodiments in this specification disclose an oral cleaning device, comprising: a cleaning assembly, an actuator, a pump assembly, and a control unit; the cleaning assembly may include a first cleaning element configured to clean the oral cavity by mechanical friction and a second cleaning element configured to clean the oral cavity by liquid impact; the actuator may be coupled to the first cleaning element to drive the first cleaning element to perform an oral cleaning operation; the pump assembly may be in communication with the second cleaning element to pump oral cleaning liquid into the second cleaning element; the control unit may control the actuator and the pump assembly to operate periodically; within one cleaning cycle, the actuator and the pump assembly may operate alternately, and during the operation of the actuator, the pump assembly may stop operating; during the operation of the pump assembly, the actuator may stop operating, and after the pump assembly finishes operating, the actuator may be started again after a specified interval to avoid the situation where the water flow pumped out by the pump assembly is in an S shape due to inertial operation, resulting in the water flow not reaching the oral position that the user wants to rinse, thereby improving the utilization rate of the oral cleaning liquid and, on the other hand, improving the user experience of using the oral cleaning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0010] Figure 1 is a schematic structural diagram of the oral cleaning device provided by the embodiments of this specification; Figure 2 is a diagram of a movement trajectory of an oral cleaning liquid provided by the embodiments of this specification; Figure 3 is a schematic diagram of the simultaneous operation of the nozzle assembly and the brush head assembly provided by the embodiments of this specification; Figure 4 It is another movement locus diagram of the oral cleansing liquid provided by the embodiments of this specification.

[0011] Reference numerals: 1. Cleaning assembly, 11. First cleaning element, 111. Brush head, 112. Connecting rod, 12. Second cleaning element, 121. Sprayer assembly, 122. Communication path, 2. Pump assembly, 3. Actuator, 4. Control unit, 5. Holding part. Detailed implementation manners

[0012] To make the purposes, technical solutions and advantages of one or more embodiments of this specification clearer, the technical solutions of one or more embodiments of this specification will be clearly and completely described below in conjunction with the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, rather than all the embodiments. Based on the embodiments in this specification, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by one or more embodiments of this specification.

[0013] The following will detail the technical solutions provided by the embodiments of this specification in conjunction with the drawings.

[0014] Figure 1 It is a schematic structural diagram of an electric toothbrush provided by the embodiments of this specification. As Figure 1 shown, the oral cleaning device may include: a cleaning assembly 1, a pump assembly 2, an actuator 3, and a control unit 4. The cleaning assembly 1 may include a first cleaning element 11 and a second cleaning element 12. The first cleaning element 11 may be used to clean the oral cavity by means of mechanical friction; the second cleaning element 12 may be used to clean the oral cavity by means of liquid impact. The actuator 3 may be coupled to the first cleaning element 11 and used to drive the first cleaning element 11 to perform oral cleaning operations. The pump assembly 2 may be connected to the second cleaning element 12 and used to pump the oral cleansing liquid into the second cleaning element 12. The control unit 4 may be used to control the periodic operation of the actuator 3 and the pump assembly 2; within one cleaning cycle, the actuator 3 and the pump assembly 2 each operate for a preset duration, and the actuator 3 is started after a specified duration after the operation of the pump assembly 2 ends.

[0015] In the embodiments of this specification, the oral cleaning device may further include a holding part 5 for the user to hold, and the connection between the cleaning assembly 1 and the holding part 5 may be a fixed connection or a detachable connection, so that when the cleaning assembly 1 needs to be replaced due to wear during use, the user can replace it by himself, which is convenient for the user to use and saves the user cost at the same time.

[0016] Among them, the cleaning component 1 may include a first cleaning element 11 and a second cleaning element 12. The first cleaning element 11 may include a brush head 111 and a connecting rod 112. Brush filaments are provided on the brush head 111; it can be understood that the number of brush filaments is usually large so as to be used for cleaning oral tissues such as teeth and gums. In practical applications, the brush head 111 and the connecting rod 112 may be integrally formed or separately provided. The brush head 111 can be connected to the holding part 5 through the connecting rod 112. The second cleaning element 12 may include a nozzle assembly 121, and the nozzle assembly 121 can be used to convey a fluid medium for the output of the fluid medium; in the embodiments of this specification, the nozzle assembly 121 may include one or may be a nozzle. If the nozzle assembly 121 includes a plurality of nozzles, the plurality of nozzles may be spaced apart. In addition, the nozzle assembly 121 may be provided within the area where the brush filaments are located or outside the area where the brush filaments are located. In practical applications, the nozzle assembly 121 and the brush filaments may be provided on the same side of the oral cleaning device or respectively provided on both sides of the oral cleaning device, and specific limitations are not made herein.

[0017] In the embodiments of this specification, the actuator 3 and the pump assembly 2 may be provided within the holding part 5. The actuator 3 may be a motor, such as a stepper motor, a servo motor, an ultrasonic motor, etc. The actuator 3 can drive the brush head 111 to move through the connecting rod 112 so as to drive the brush filaments provided on the brush head 111 to perform a cleaning operation. The movement mode of the first cleaning element 11 driven by the actuator 3 may be one or more of linear movement, rotational movement, or reciprocating vibration.

[0018] In the embodiments of this specification, the pump assembly 2 may be in communication with the nozzle assembly 121 through a communication path 122. The pump assembly 2 can pump the oral cleaning liquid to the nozzle assembly 121 through the communication path 122 and pump it out from the nozzle assembly 121 to perform a fluid impact. In practical applications, the pump assembly 2 may be a fluid pump, such as a gear pump, a diaphragm pump, or a piston pump, etc. The oral cleaning liquid may be water, mouthwash, or oral care liquid, etc. used for cleaning teeth or the oral cavity.

[0019] In the embodiments of this specification, the control unit 4 is usually provided within the holding part 5 but is not limited to being provided within the holding part 5. The control unit 4 can be used to control the normal operation of the entire oral cleaning device. Specifically, the control unit 4 may be electrically connected to the actuator 3 and the pump assembly 2 to control the operation of the actuator 3 and the pump assembly 2. In practical applications, the control unit 4 may be a microcontroller unit (MCU) or a central processing unit (CPU), and specific limitations are not made herein.

[0020] In the embodiments of the present specification, during the operation of the oral cleaning device, the control unit 4 can control the actuator 3 and the pump assembly 2 to drive the cleaning assembly 1 to perform a periodic cleaning operation. The cleaning operation can include the actuator 3 driving the first cleaning element 11 to perform a displacement movement, and the pump assembly 2 pumping out the oral cleaning liquid from the second cleaning element 12 to perform a fluid impact operation. During the periodic cleaning operation performed by the cleaning assembly 1, the actuator 3 and the pump assembly 2 can operate alternately, that is, if the actuator 3 operates, the pump assembly 2 stops operating, and if the pump assembly 2 operates, the actuator 3 stops operating.

[0021] In addition, in the embodiments of the present specification, the control unit 4 can output the start signal of the actuator 3 after a preset duration of outputting the stop signal of the pump assembly 2.

[0022] When the control unit 4 outputs a stop signal for controlling the pump assembly 2 to stop, the pump assembly 2 will not immediately stop moving under the action of inertia, so that the nozzle assembly 121 will continue to spray out the oral cleaning liquid for a period of time. Initially, the oral cleaning liquid can still accurately reach the position to be rinsed. As time goes by, the impact position of the oral cleaning liquid gets closer and closer to the oral cleaning device. The movement trajectory of the oral cleaning liquid can be as Figure 2 shown. At this time, the user can still make the oral cleaning liquid reach the position to be rinsed by simply moving the oral cleaning device.

[0023] If the actuator 3 is started at this time, the brush head 111 will swing back and forth under the drive of the actuator 3, and the nozzle assembly 121 will swing back and forth following the brush head 111, as Figure 3 shown, where the arrow direction indicates the swinging direction of the brush head. The nozzle assembly 121 will swing back and forth following the brush head 111, so that the oral cleaning liquid sprayed out by the nozzle assembly 121 due to the inertia of the pump assembly 2 will also swing in an S shape along the swinging direction of the brush head 111, and thus cannot accurately reach the position that the user needs to rinse. Specifically, the movement trajectory of the oral cleaning liquid can be as Figure 4 shown. The control unit 4 controls the actuator 3 to start after a specified duration after the pump assembly 2 receives the stop signal, which can avoid the situation that the water pumped out by the pump assembly 2 is dispersed and swings in an S shape under the action of inertia. On the one hand, it can improve the utilization rate of the oral cleaning liquid, and on the other hand, it can improve the user experience of using the oral cleaning device. Among them, the specified duration can be set according to actual needs and will not be specifically limited here.

[0024] In practical applications, a liquid storage cavity for storing oral cleaning liquid can also be provided in the oral cleaning device, and the liquid storage cavity can be arranged in the holding part 5.

[0025] In addition, an energy component for providing energy to the oral cleaning device may be provided in the oral cleaning device. The energy component may include one or more batteries, which may be dry batteries or rechargeable batteries, and no specific limitation is made herein. Among them, the energy component may be electrically connected to the control unit 4, the actuator 3, and the pump assembly 2 respectively, so as to supply electrical energy to the control unit 4, the actuator 3, and the pump assembly 2.

[0026] As Figure 1 shown, the positional relationship among the control unit 4, the energy component, the liquid storage cavity, the actuator 3, and the pump assembly 2 inside the holding part 5 is only an example, and the positional relationship of each component inside the holding part 5 can be adjusted according to actual situations, and no specific limitation is made in the embodiments of this specification.

[0027] In the embodiments of this specification, optionally, the specified duration may be 20 ms to 60 ms. As an implementation manner, optionally, the specified duration may be 40 ms.

[0028] In the embodiments of this specification, during the process of the actuator 3 performing periodic cleaning operations, there may be different operating modes, and the operating modes may be determined by the control unit 4.

[0029] Optionally, the control unit 4 may specifically be used for: Determining the operating mode of the actuator 3 according to the user input signal or the sensor sensing signal; the operating mode of the actuator 3 at least includes a first operating mode and a second operating mode.

[0030] Controlling the operation of the actuator 3 according to the operating mode of the actuator 3.

[0031] As an implementation manner, the first operating mode of the actuator 3 may be a gradually increasing mode, that is, the operating intensity of the actuator 3 can be gradually increased by controlling the operating parameters of the actuator 3 over time. The second operating mode may be a stable mode, that is, the operating parameters of the actuator 3 are relatively consistent over time, so that the operating intensity of the actuator 3 is relatively stable.

[0032] In the embodiments of this specification, the control unit 4 may respond to user input and control the operating mode of the actuator 3 according to the selected operating mode by the user. Or the control unit 4 may determine the operating mode of the actuator 3 through the sensing signal of the sensor. For example, when the user shakes the oral cleaning device, it means that the actuator operates in the first operating mode; when the oral cleaning device is turned on, if the user performs a shaking operation, the motion sensor in the oral cleaning device can sense the user's action and can also transmit the corresponding sensing signal to the control unit 4, and the control unit 4 can determine the operating mode of the actuator according to the sensing signal of the sensor.

[0033] Optionally, the operating mode of the actuator 3 is the first operating mode; specifically, the control unit 4 can be configured to: Control the actuator 3 to start according to the initial operating parameters of the actuator 3.

[0034] Determine the operating parameters of the actuator 3 in the current cleaning cycle after a preset number of cleaning cycles.

[0035] Control the operation of the actuator 3 based on the operating parameters of the actuator 3 in the current cleaning cycle.

[0036] In the embodiments of the present specification, if the actuator 3 operates in the first operating mode, the control unit 4 can output the initial operating parameters to the actuator 3 to control the start of the actuator 3. During the operation of the actuator 3, the control unit 4 can also determine the operating parameters of the actuator 3 in the current cleaning cycle after a preset number of cleaning cycles. To control the operation of the actuator 3 based on the operating parameters of the actuator 3 in the current cleaning cycle. In the embodiments of the present specification, the preset number can be set according to actual needs and will not be specifically limited herein.

[0037] As an implementation manner, the control unit 4 can pre-determine the operating parameters of the actuator 3 in the current cleaning cycle before the actuator 3 runs to the current cleaning cycle to ensure the smooth operation of the actuator 3. For example, if the preset number is 5, the control unit 4 can determine the operating parameters of the actuator 3 in the current cleaning cycle after 5 cleaning cycles in the 4th or 5th operating cycle. Additionally, the control unit 4 can also determine the operating parameters of the actuator 3 in the current cleaning cycle when the actuator 3 runs to the current cleaning cycle.

[0038] In the embodiments of the present specification, the operating parameters of the actuator 3 can be adjusted every time a preset number of cleaning cycles pass, so that the actuator 3 can operate according to the adjusted operating parameters, thereby gradually increasing the operating intensity of the actuator 3 until the operating parameters of the actuator 3 reach the target operating parameters.

[0039] In practical applications, if the actuator 3 operates in the second operating mode, the control unit 4 can output the preset operating parameters corresponding to the second operating mode to the actuator 3 to control the start and operation of the actuator 3 with the preset operating parameters.

[0040] In the embodiments of the present specification, a method for determining the operating parameters of the actuator 3 in the current cleaning cycle is provided.

[0041] Optionally, the control unit 4 can be specifically configured to: Determine the operating parameters of the actuator 3 in the current cleaning cycle according to a preset mapping table or operating parameter sequence; or, Determine a parameter change amount based on a target operating parameter and the initial operating parameter among the operating parameters.

[0042] Determine the operating parameter of the actuator 3 in the current cleaning cycle based on the operating parameter of the actuator 3 in the previous cleaning cycle and the parameter change amount.

[0043] In the embodiments of this specification, an operating parameter sequence table or a mapping table including the operating parameters of the actuator 3 can be preset; the operating parameter sequence table or the mapping table can include the operating parameters of the actuator 3 in each operating cycle, or can only include the initial operating parameter of the actuator 3 and the operating parameters in each current operating cycle. So that the control unit 4 can directly determine the operating parameter of the actuator 3 based on the operating parameter sequence table or the mapping table.

[0044] Specifically, assuming that the operating parameter of the actuator 3 includes a duty cycle, the initial value of the duty cycle and the values of the duty cycle in each current operating cycle can be included in the operating parameter sequence table. For example, the duty cycle is set to 10% - 15% - 20% - 25% - 30%, the initial duty cycle is 10%, and the preset quantity is 5. In this way, during the operation of the actuator 3 in the gradually increasing strength mode, every 5 cleaning cycles, it can operate according to the duty cycle in the operating parameter sequence setting table. Further for example, after the actuator 3 starts and continuously operates for 5 cleaning cycles, the duty cycle of the actuator 3 can be adjusted from 10% to 15%. When the actuator 3 continuously operates for 10 cleaning cycles, the duty cycle of the actuator 3 is adjusted from 15% to 20%.

[0045] In practical applications, the control unit 4 can determine the parameter change amount according to the target operating parameter and the initial operating parameter. For example, assuming that the operating parameter of the actuator 3 is the duty cycle and the parameter change amount is a fixed value, according to the number of times of duty cycle change, the change amount of the duty cycle of the actuator 3 each time can be calculated, that is, the parameter change amount. Specifically, if the target operating parameter of the actuator 3 is 80% and the initial operating parameter is 10%, and the number of duty cycle changes is 4, then the parameter change amount is (80% - 20%) / 4 = 15%.

[0046] In the embodiments of this specification, during the periodic oral cleaning process of the oral cleaning device, the actuator 3 operates in a gradually increasing strength mode, and the user can clean different positions according to different operating intensities of the actuator 3. For example, for positions that the user feels are not easy to clean or are not cleaned thoroughly, such as the interdental spaces of permanent teeth, the user can clean again when the operating intensity of the actuator 3 is stronger, thereby improving the cleaning effect.

[0047] The first cleaning element 11 can operate in a sweeping and vibrating manner. The embodiments of this specification also provide a connection method and a control method between the control unit 4 and the actuator 3.

[0048] Optionally, the first output pin of the control unit 4 may be connected to the first control pin of the actuator 3; the first output pin may be used to output a first control signal; the first control signal is used to control the actuator 3 to rotate in a first direction; the second output pin of the control unit 4 may be connected to the second control pin of the brake; the second output pin is used to output a second control signal; the second control signal is used to control the actuator 3 to rotate in a second direction; the first direction is opposite to the second direction; the first signal and the second signal are alternately output.

[0049] In the embodiment of the present specification, the actuator 3 may drive the first cleaning element 11 to move in a sweeping and vibrating manner. The actuator 3 may be a sonic motor. The first output pin of the control unit 4 may be connected to the PWM1 pin of the sonic motor, and the second output pin of the control unit 4 may be connected to the PWM2 pin of the sonic motor. In the embodiment of the present specification, the first control signal and the second control signal may be two-phase drive signals for controlling the sonic motor. Specifically, the first control signal may be a PWM1 drive signal, and the second control signal may be a PWM2 drive signal.

[0050] In practical applications, by controlling the first control signal and the second control signal, the movement direction of the actuator 3 can be controlled; in the embodiment of the present specification, it is possible to control the first control signal and the second control signal to be alternately output, so that when the sonic motor receives the first control signal, it can rotate in the first direction; when it receives the second control signal, it can rotate in the second direction opposite to the first direction.

[0051] In practical applications, the vibration amplitude of the sonic motor can also be controlled by adjusting the duty cycles of the first control signal and the second control signal.

[0052] Optionally, the initial operating parameters of the actuator 3 may include the initial duty cycle of the first control signal and the initial duty cycle of the second control signal; if the initial duty cycle of the first control signal is the preset lower limit of the duty cycle and the initial duty cycle of the second control signal is the preset upper limit of the duty cycle, the control unit 4 is specifically configured to: After every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by a preset value, and control the duty cycle of the second control signal to decrease by the preset value; until the duty cycle of the first control signal reaches the preset upper limit of the duty cycle or the duty cycle of the second control signal reaches the preset lower limit of the duty cycle.

[0053] In the embodiments of this specification, the operating parameters of the actuator 3 may include the operating parameters of the first control signal and the operating parameters of the second control signal. Specifically, the operating parameters of the first control signal may include the initial operating parameters of the first control signal. The operating parameters of the second control signal may include the initial operating parameters of the second control signal. Among them, the operating parameters of the first control signal and the second control signal may include the duty cycle. The initial operating parameters of the first control signal may include the initial duty cycle of the first control signal. The initial operating parameters of the second control signal may include the initial duty cycle of the second control signal.

[0054] In the embodiments of this specification, the change range of the duty cycle of the first control signal and the change range of the duty cycle of the second control signal may be the same. Specifically, the change range of the duty cycle of the first control signal and / or the second control signal may be [the preset lower limit of the duty cycle, the preset upper limit of the duty cycle].

[0055] In the embodiments of this specification, the preset lower limit of the duty cycle and the preset upper limit of the duty cycle can ensure that the vibration amplitude of the actuator 3 is relatively reasonable, avoiding excessive vibration amplitude that may damage oral tissues such as teeth and gums. At the same time, it avoids too small a vibration amplitude and poor cleaning effect.

[0056] In practical applications, if the initial duty cycle of the first control signal is the preset lower limit of the duty cycle, the initial duty cycle of the second control signal may be the preset upper limit of the duty cycle. When the initial duty cycle of the first control signal is the preset lower limit of the duty cycle and the initial duty cycle of the second control signal is the preset upper limit of the duty cycle, it can indicate that when the actuator 3 starts, the swing amplitude in the first direction is small and the swing amplitude in the second direction is large. During the operation of the actuator 3, the duty cycle of the first control signal can be gradually increased, and at the same time, the duty cycle of the second control signal can be gradually decreased. Thus, the swing amplitude of the actuator 3 in the first direction is gradually increased, and the swing amplitude in the second direction is gradually decreased. To imitate the artificial oral cleaning operation and improve the cleaning effect.

[0057] In the embodiments of this specification, the decrease amount of the duty cycle of the control signal may be the same, that is, when the duty cycle of the first control signal increases by a preset value, the duty cycle of the second control signal can be decreased by the preset value. Thus, it can ensure that the overall vibration amplitude of the actuator 3 remains unchanged and improve the cleaning effect. In the embodiments of this specification, the preset value by which the duty cycle of the first control signal increases, or the preset value by which the duty cycle of the second control signal decreases, can be understood as the parameter change amount in the previous text. The determination method of the preset value is the same as the determination method of the parameter change amount in the previous text, and will not be elaborated here.

[0058] In practical applications, the time for the actuator 3 to run one cycle (i.e., deflect in the first direction and then in the second direction or deflect in the second direction and then in the first direction) is much less than the running time of the actuator 3 in one cleaning cycle.

[0059] In practical applications, when the duty cycle of the first control signal reaches the upper limit of the duty cycle or the duty cycle of the second control signal reaches the lower limit of the duty cycle, in order to ensure the smooth operation of the actuator 3 and simultaneously simulate the artificial oral cleaning operation, the duty cycle of the first control signal can be gradually reduced and the duty cycle of the second control signal can be increased.

[0060] Optionally, the control unit 4 can also be used for: Judging whether the duty cycle of the first control signal reaches a preset upper limit of the duty cycle.

[0061] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease the preset value, and control the duty cycle of the second control signal to increase the preset value.

[0062] Or, Judging whether the duty cycle of the second control signal reaches a preset lower limit of the duty cycle.

[0063] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease the preset value, and control the duty cycle of the second control signal to increase the preset value.

[0064] In the embodiments of this specification, since the initial duty cycle of the first control signal is the preset lower limit of the duty cycle, the initial duty cycle of the second control signal is the preset upper limit of the duty cycle, and during the operation of the actuator 3, the increase amount of the duty cycle of the first control signal is the same as the decrease amount of the duty cycle of the second control signal. Therefore, when the duty cycle of the first control signal reaches the preset upper limit of the duty cycle, the duty cycle of the second control signal is the preset lower limit of the duty cycle. Thus, the control unit 4 can judge whether the vibration amplitude in the first direction or the second direction reaches the critical value through the value of the duty cycle of the first control signal, or can also judge whether the vibration amplitude in the first direction or the second direction reaches the critical value through the value of the duty cycle of the second control signal.

[0065] Specifically, when the duty cycle of the first control signal reaches the preset upper limit of the duty cycle, or the duty cycle of the second control signal reaches the preset lower limit of the duty cycle, it can indicate that the amplitude of the actuator 3 rotating in the first direction has reached the maximum set value, and the amplitude of rotating in the second direction has reached the minimum set value. After a preset number of cleaning cycles, the amplitude of the actuator 3 rotating in the first direction can be reduced by decreasing the duty cycle of the first control signal, and the amplitude of the actuator 3 rotating in the second direction can be increased by increasing the duty cycle of the second control signal, so as to reduce the amplitude of the first cleaning element 11 deflecting in the first direction and increase the amplitude of the first cleaning element 11 deflecting in the second direction. This can avoid damaging oral tissues due to excessive deflection of the first cleaning element 11 in the first direction, and at the same time avoid affecting the cleaning effect due to too small a deflection amplitude of the first cleaning element 11 in the second direction.

[0066] In practical applications, the initial duty cycle of the first control signal can also be the preset upper limit of the duty cycle, and the duty cycle of the second control signal is the preset lower limit of the duty cycle.

[0067] Based on this, optionally, the initial operating parameters of the actuator 3 can include the initial duty cycle of the first control signal and the initial duty cycle of the second control signal; if the initial duty cycle of the first control signal is the preset upper limit of the duty cycle and the initial duty cycle of the second control signal is the preset lower limit of the duty cycle; the control unit 4 can also be used for: After each preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by a preset value, and control the duty cycle of the second control signal to increase by a preset value; until the duty cycle of the first control signal reaches the preset lower limit of the duty cycle or the duty cycle of the second control signal reaches the preset upper limit of the duty cycle.

[0068] In practical applications, if the initial duty cycle of the first control signal is the preset upper limit of the duty cycle, then the initial duty cycle of the second control signal can be the preset lower limit of the duty cycle. When the initial duty cycle of the first control signal is the preset upper limit of the duty cycle and the initial duty cycle of the second control signal is the preset lower limit of the duty cycle, it can indicate that when the actuator 3 starts, the amplitude of swinging in the first direction is larger and the amplitude of swinging in the second direction is smaller. During the operation of the actuator 3, after each preset number of cleaning cycles, the duty cycle of the first control signal can be gradually decreased, and at the same time the duty cycle of the second control signal can be gradually increased. Thus, the amplitude of the actuator 3 swinging in the first direction is gradually decreased, and the amplitude of the actuator 3 swinging in the second direction is gradually increased. To imitate manual oral cleaning operations and improve the cleaning effect.

[0069] Similarly, when the duty cycle of the first control signal reaches the lower limit of the duty cycle or the duty cycle of the second control signal reaches the upper limit of the duty cycle, to ensure the smooth operation of the actuator 3 and simultaneously simulate the manual oral cleaning operation, the duty cycle of the first control signal can be gradually increased and the duty cycle of the second control signal can be gradually decreased.

[0070] Optionally, the control unit 4 can also be configured to: Determine whether the duty cycle of the first control signal reaches a preset lower limit of the duty cycle.

[0071] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by the preset value and control the duty cycle of the second control signal to decrease by the preset value.

[0072] Or, Determine whether the duty cycle of the second control signal reaches a preset upper limit of the duty cycle.

[0073] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by the preset value and control the duty cycle of the second control signal to decrease by the preset value.

[0074] In the embodiments of the present specification, when the duty cycle of the first control signal reaches the preset lower limit of the duty cycle or the duty cycle of the second control signal reaches the preset upper limit of the duty cycle, it can indicate that the rotation amplitude of the actuator 3 in the first direction has reached the minimum set value and the rotation amplitude in the second direction has reached the maximum set value. After a preset number of cleaning cycles, the rotation amplitude of the actuator 3 in the first direction can be increased by increasing the duty cycle of the first control signal, and the rotation amplitude of the actuator 3 in the second direction can be decreased by decreasing the duty cycle of the second control signal, thereby increasing the deflection amplitude of the first cleaning element 11 in the first direction and decreasing the deflection amplitude of the first cleaning element 11 in the second direction. This can avoid damaging oral tissues due to excessive deflection of the first cleaning element 11 in the second direction and also avoid affecting the cleaning effect due to too small a deflection amplitude of the first cleaning element 11 in the first direction.

[0075] It can be understood that the actuator 3 can drive the first cleaning element 11 to move cyclically in the first direction and the second direction.

[0076] Based on this, optionally, the control unit 4 can control the actuator 3 to drive the first cleaning element 11 to reciprocate vibrate at a preset duty cycle according to a predetermined angle.

[0077] Wherein, the preset duty cycle can be set according to actual needs and is not specifically limited herein.

[0078] In the embodiments of the present specification, the actuator 3 can drive the first cleaning element 11 to perform large-angle sweeping vibration.

[0079] As an implementation manner, optionally, the angle range of the rotation of the first cleaning element 11 driven by the actuator 3 along the rotation axis in a single direction is 0° to 20°. In the embodiments of the present specification, the angle range of the rotation of the first cleaning element 11 along the rotation axis in a single direction is 0° to 20°. It can be understood that during the operation of the actuator 3, when the duty ratio of the first control signal of the actuator 3 is the preset duty ratio upper limit and the duty ratio of the second control signal is the preset duty ratio lower limit, the angle of deflection of the first cleaning element 11 in the first direction is the largest, which can be 20°; when the duty ratio of the first control signal of the actuator 3 is the preset duty ratio lower limit and the duty ratio of the second control signal is the preset duty ratio upper limit, the maximum deflection of the first cleaning element 11 in the second direction can also be 20°.

[0080] In the embodiments of the present specification, the angle range of the rotation of the first cleaning element 11 along the rotation axis in a single direction is 0° to 20°, which can effectively improve the cleaning effect.

[0081] In practical applications, after determining the operation mode of the actuator 3, the control unit 4 can further determine the operation parameters of the oral cleaning device to ensure the normal operation of the oral cleaning device.

[0082] Optionally, after determining the operation mode of the actuator 3 according to the user input signal or the sensor sensing signal, the control unit 4 can also be used for: Determining the operation parameters of the oral cleaning device according to at least one of the user input data, the historical operation data of the oral cleaning device, or the motion state data of the oral cleaning device.

[0083] Among them, the operation parameters of the oral cleaning device include the operation parameters of the actuator 3 and the operation parameters of the pump assembly 2.

[0084] The operation parameters of the actuator 3 include the preset operation frequency of the actuator 3, the preset duty ratio upper limit, the preset duty ratio lower limit, and the preset adjustment frequency of the duty ratio of the first control signal and / or the second control signal of the actuator 3; or, The preset operation frequency of the actuator 3, the preset duty ratio upper limit, the preset duty ratio lower limit, and the preset value of each adjustment of the duty ratio of the first control signal and / or the second control signal of the actuator 3.

[0085] In the embodiments of this specification, the user input data may be data custom-set by the user through the parameter setting component provided on the oral cleaning device; the historical operation data of the oral cleaning device may be the operation data with a relatively high setting or usage frequency in the user's history, and the historical operation data may reflect the user's habit of using the oral cleaning device.

[0086] In practical applications, the habits and needs of different users in using the oral cleaning device may be different. The control unit 4 may automatically calculate the operation parameters of the oral cleaning device based on the historical operation data that can reflect the user's habit of using the oral cleaning device or the input data custom-set by the user. For example, some users' tooth cleaning habit is quick cleaning, and the control unit 4 may shorten the cycle duration of the cleaning movement according to the habit data of the user using the oral cleaning device. Another example is that some users may have tooth discomfort recently and hope to reduce the time for the oral cleaning device to spray and rinse the tooth gaps. The control unit 4 may shorten the operation duration of the pump component 2 within a single cycle according to the data input by the user. In this way, the oral cleaning device can meet the personalized usage needs of the user and improve the user experience.

[0087] As an implementation manner, the motion state data of the oral cleaning device may include data such as the position and angle of the oral cleaning device in the oral cavity. In practical applications, the operation parameters of the oral cleaning device may also be determined according to the position and / or angle of the oral cleaning device in the oral cavity. For example, if the oral cleaning device is located at the molar position in the oral cavity, the cleaning cycle may be longer; if the oral cleaning device is located at the incisor position in the oral cavity, the cleaning cycle may be shorter.

[0088] In the embodiments of this specification, the operation parameters of the actuator 3 may include the preset operation frequency of the actuator 3, the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset adjustment frequency. Or, the preset operation frequency of the actuator 3, the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset value of each adjustment of the duty cycle.

[0089] As an implementation manner, a safety range of the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset adjustment frequency may also be set, so that the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset adjustment frequency set by the user are all within a reasonable range. Ensure that the preset upper limit of the duty cycle cannot be too large, the preset lower limit of the duty cycle cannot be too small, the preset adjustment frequency and the preset value cannot be too large or too small, so as to ensure the stable and safe operation of the actuator 3 while avoiding damage to oral tissues such as teeth and gums during the user's use of the oral cleaning device. If the value set by the user exceeds the above safety range, a safety reminder message may be sent to the user.

[0090] In the embodiments of the present specification, for the convenience of users to set parameters, optionally, the oral cleaning device may further include a parameter setting component, and the parameter setting component may be used for users to input data.

[0091] In the embodiments of the present specification, optionally, the oral cleaning device may further include a sensor component, and the sensor component may be used to measure the motion state data of the oral cleaning device.

[0092] As an implementation manner, the parameter setting component may be disposed on the holding portion 5 of the oral cleaning device. The parameter setting component may include a button and a parameter display component. The sensor component may be disposed within the holding portion 5 to prevent the sensor component from being damaged by contacting liquid.

[0093] In practical applications, during the periodic cleaning operation performed by the cleaning component 1, the actuator 3 and the pump component 2 may operate alternately.

[0094] Optionally, within one cleaning cycle, the actuator 3 may operate for a first preset duration, and the pump component 2 may operate for a second preset duration.

[0095] In the embodiments of the present specification, the first preset duration and the second preset duration may be set according to actual needs.

[0096] As an implementation manner, the ratio range of the first preset duration to the duration of the cleaning cycle may be from 65% to 80%, and the ratio range of the second preset duration to the duration of the cleaning cycle may be from 15% to 30%. Preferably, the ratio range of the first preset duration to the duration of the cleaning cycle may be from 70% to 75%, and the ratio range of the second preset duration to the duration of the cleaning cycle may be from 20% to 25%.

[0097] In practical applications, in order to improve the cleaning effect, the cleaning component 1 usually may operate for multiple cleaning cycles.

[0098] Based on this, optionally, the control unit 4 may control the actuator 3 and the pump component 2 to operate for multiple cleaning cycles. The operation durations of the actuator 3 within multiple cleaning cycles may be different, and / or the operation durations of the pump component 2 within multiple cleaning cycles may be different.

[0099] In the embodiments of the present specification, when the oral cleaning device operates for multiple cleaning cycles, the duration of each cleaning cycle may be the same or different. When the cleaning component 1 performs the cleaning operation for multiple cycles, during the cleaning motions of each cycle, the operation durations of the actuator 3 may be different, and / or the operation durations of the pump component 2 may also be different, so that the cleaning operation modes of each cycle may be different. Thus, when the cleaning component 1 performs the cleaning motions for multiple cycles, diversified cleaning operation modes may be achieved.

[0100] As an implementation manner, during the use of the oral cleaning device by the user, in order to obtain an experience of gradually increasing cleaning intensity, when the cleaning component 1 performs cleaning movements for multiple cycles, the duration of the cleaning operation can be gradually increased, that is, the cleaning duration of each cycle becomes longer and longer. During the cleaning operations for multiple cycles, as the cycle count increases, the operating duration of the actuator 3 and / or the operating duration of the pump assembly 2 can be set to be longer. Alternatively, during the use of oral cleaning by the user, in order to obtain an experience of decreasing cleaning intensity, when the cleaning component 1 performs cleaning operations for multiple cycles, the duration of the cleaning operation can be gradually decreased, that is, the cleaning duration of each cycle becomes shorter and shorter. During the cleaning operations for multiple cycles, as the cycle count increases, the operating duration of the actuator 3 and / or the operating duration of the pump assembly 2 can be set to be shorter and shorter. Thus, during the execution of cleaning operations for multiple cycles, by setting different operating durations of the actuator 3 and / or the pump assembly 2 in each cycle, diverse cleaning operation modes can be realized, meeting the personalized needs of the user, so as to further enhance the user experience during the use of the oral cleaning device.

[0101] It should be noted that in this implementation manner, during the use of the oral cleaning device by the user, the user may also obtain an experience of a stable cleaning intensity. That is, when the cleaning component 1 performs cleaning operations for multiple cycles, the cleaning operation duration of each cycle remains stable. During the cleaning movements for multiple cycles, the operating duration of the actuator 3 for multiple periodic cleaning movements can be set to be the same, and the operating duration of the pump assembly 2 can be set to be the same to ensure that the cleaning intensity of each cycle is the same. Of course, the operating duration of the actuator 3 and / or the pump assembly 2 in each cycle can also be set according to other user requirements to further meet other needs of the user, thereby further enhancing the use experience of the oral cleaning device. The embodiments of the present application do not specifically limit this.

[0102] As an implementation manner, optionally, the cleaning cycle is at least two, and the two cleaning cycles are respectively a first cleaning cycle and a second cleaning cycle; within the first cleaning cycle, the pump assembly 2 operates for a first duration, and the actuator 3 operates for a second duration; within the second cleaning cycle, the pump assembly 2 operates for a third duration, and the actuator 3 operates for a fourth duration.

[0103] In the embodiments of this specification, the cleaning cycle may also include multiple cleaning cycles such as a third cleaning cycle and a fourth cleaning cycle, which are not specifically limited herein.

[0104] Among them, the first operation duration of the pump assembly 2 in the first cleaning cycle and the third operation duration of the pump assembly 2 in the second cleaning cycle may be different; the second operation duration of the actuator 3 in the first cleaning cycle and the fourth operation duration of the actuator 3 in the second cleaning cycle may be different. Continuing with the above example, if the user needs to obtain an experience of gradually increasing the cleaning intensity, then the third cleaning duration may be greater than the first cleaning duration; the fourth cleaning duration may be greater than the second cleaning duration. If the user needs to obtain an experience of gradually decreasing the cleaning intensity, then the first cleaning duration may be greater than the third cleaning duration; the second cleaning duration may be greater than the fourth cleaning duration. Additionally, the user may also need to obtain an experience of gradually increasing the brushing intensity and gradually decreasing the flushing intensity, then the first cleaning duration may be greater than the third cleaning duration, and the fourth cleaning duration may be greater than the second cleaning duration.

[0105] In practical applications, the duration of the cleaning cycle, the first duration, and the second duration can be determined according to user habits or user-set values.

[0106] Optionally, the control unit 4 can also be used to determine the duration of the cleaning cycle and the first duration according to the user input data or the historical operation data of the oral cleaning device; or, determine the duration of the operation cycle and the second duration; or, determine the duration of the operation cycle, the first duration, and the second duration.

[0107] In the embodiments of this specification, the user input data can be data custom-set by the user using the parameter setting component on the oral cleaning device; the historical operation data of the oral cleaning device can be the operation data with a higher setting or usage frequency in the user's history, and the historical operation data can reflect the user's habit of using the oral cleaning device.

[0108] In practical applications, the habits and needs of different users using the oral cleaning device may be different. The control unit 4 can determine the duration of the cleaning cycle, the first duration, and / or the second duration based on the historical operation data that can reflect the user's habit of using the oral cleaning device or the user's custom-set input data. If there are multiple cleaning cycles, the control unit 4 can determine the duration of each cleaning cycle, the operation duration of the actuator 3 and / or the pump assembly 2 within each cycle according to the user input data or the historical operation data of the oral cleaning device.

[0109] As an implementation manner, optionally, the range of the first duration is 80 ms to 120 ms, and / or the range of the second duration is 80 ms to 120 ms.

[0110] Optionally, the range of the third duration is 120 ms to 250 ms, and / or the range of the fourth duration is 600 ms to 1000 ms.

[0111] In the embodiments of this specification, the oral cleaning device may include a variety of different cleaning modes, and a cleaning mode selection component may be provided on the oral cleaning device for the user to select the cleaning mode.

[0112] Optionally, the oral cleaning device further includes a mode selection component; the mode selection component is used for the user to select the operating mode of the oral cleaning device; the operating modes of the oral cleaning device include a teeth cleaning mode, an oral irrigation mode, and a combined flushing and brushing mode; The control element is specifically configured to determine the operating mode of the oral cleaning device according to the input signal of the mode selection component; If the control element determines that the operating mode of the oral cleaning device is the combined flushing and brushing mode, then control the actuator 3 and the pump assembly 2 to perform a periodic cleaning motion.

[0113] In the embodiments of this specification, the combined flushing and brushing mode may be the alternating operation of the actuator 3 and the pump assembly 2 mentioned above. In the combined flushing and brushing mode, when the oral cleaning device is started, it may be the pump assembly 2 that first performs the cleaning operation, or it may be the pump assembly 2 that first performs the cleaning operation. In a cleaning cycle, assuming that the pump assembly 2 starts to work first, after the pump assembly 2 operates for a first duration, the control unit 4 may send a stop signal to control the pump assembly 2 to stop moving. At this time, the control unit 4 may wait for a specified duration to wait for the inertial motion of the pump assembly 2 to end. When the inertial motion of the pump body ends, the control unit 4 may send a second control signal to control the actuator 3 to start. When the actuator 3 operates for a second duration, the control unit 4 may send a third control signal to control the actuator 3 to stop moving. Thus, one cleaning cycle can be completed.

[0114] Among them, the teeth cleaning mode may be that the actuator 3 works while the pump assembly 2 does not work. The actuator 3 drives the brush head 111 to move through the connecting rod 112, so that the brush filaments can perform a cleaning operation on the tooth surface. In practical applications, the actuator 3 in the teeth cleaning mode may also have two operating modes: gradually increasing and steady. The control method of the gradually increasing operating mode of the actuator 3 in the teeth cleaning mode may be similar to the control method of the gradually increasing operating mode of the actuator 3 in the combined flushing and brushing mode, which will not be elaborated here. The control method of the steady operating mode of the actuator 3 in the teeth cleaning mode may be similar to the control method of the steady operating mode of the actuator 3 in the combined flushing and brushing mode.

[0115] The oral irrigation mode may be that the actuator 3 does not work while the pump assembly 2 works. The pump assembly 2 can pump the oral cleaning liquid into the nozzle assembly 121 through the communication path 122 and make the oral cleaning liquid spray out from the nozzle assembly 121 to rinse the tooth gaps.

[0116] As an implementation manner, before starting the flushing and cleaning integrated mode or after ending the flushing and cleaning integrated mode, the tooth cleaning mode or the oral irrigating mode can be executed. For example, after the oral cleaning device is started, the tooth cleaning mode can be executed for a period of time first. After the tooth cleaning mode reaches the first specified duration, the flushing and cleaning integrated mode can be entered to perform tooth cleaning using the flushing and cleaning integrated mode. After the tooth cleaning in the flushing and cleaning integrated mode reaches the second specified duration, the oral irrigating mode can be executed again to improve the oral cleaning effect.

[0117] In the embodiments of the present specification, the mode selection component can be a button or a touch element. Different operating modes can respectively correspond to different buttons or touch elements.

[0118] In the embodiments of the present specification, the control unit 4 can also control the oral cleaning device to stop working.

[0119] Optionally, the control element can also be used to control the actuator 3 and the pump assembly 2 to stop the periodic cleaning movement when the periodic cleaning movement is performed for a preset cycle count or a target duration.

[0120] In the embodiments of the present specification, the control unit 4 can record the running duration or the running cycle number of the actuator 3 and the pump assembly 2. When the running duration of the actuator 3 and the pump assembly 2 reaches the preset target duration, or the running cycle number of the actuator 3 and the pump assembly 2 reaches the preset cycle count, the control unit 4 can control the oral cleaning device to stop working.

[0121] As an implementation manner, in the embodiments of the present specification, a control method for an oral cleaning device is further provided.

[0122] Optionally, the control method may include: Controlling the actuator 3 and the pump assembly 2 to run periodically; within one cleaning cycle, the actuator 3 and the pump assembly 2 each run for a preset duration, and after the pump assembly 2 finishes running, the actuator 3 is started after a specified duration; the actuator 3 is coupled with the first cleaning element 11 and is used to drive the first cleaning element 11 to perform oral cleaning operations; the first cleaning element 11 is used to clean the oral cavity by mechanical friction; the pump assembly 2 is coupled with the second cleaning element 12 and is used to pump the oral cleaning liquid into the second cleaning element 12; the second cleaning element 12 is used to clean the oral cavity by liquid impact.

[0123] Optionally, the specified duration can be 20 ms to 60 ms.

[0124] Optionally, the specified duration is 40 ms.

[0125] Optionally, the control unit 4 can specifically be used for: Determine the operating mode of the actuator 3 according to the user input signal or the sensor sensing signal; the operating mode of the actuator 3 includes at least a first operating mode and a second operating mode.

[0126] Control the operation of the actuator 3 according to the operating mode of the actuator 3.

[0127] Optionally, the operating mode of the actuator 3 is the first operating mode.

[0128] The control unit 4 can specifically be used for: Control the startup of the actuator 3 according to the initial operating parameters of the actuator 3.

[0129] Determine the operating parameters of the actuator 3 in the current cleaning cycle after a preset number of cleaning cycles.

[0130] Control the operation of the actuator 3 based on the operating parameters of the actuator 3 in the current cleaning cycle.

[0131] Optionally, the control unit 4 can specifically be used for: Determine the operating parameters of the actuator 3 in the current cleaning cycle according to a preset mapping table or operating parameter sequence table; or, Determine the parameter change amount based on the target operating parameter and the initial operating parameter in the operating parameters.

[0132] Determine the operating parameters of the actuator 3 in the current cleaning cycle based on the operating parameters of the actuator 3 in the previous cleaning cycle and the parameter change amount.

[0133] Optionally, the first output pin of the control unit 4 can be connected to the first control pin of the actuator 3; the first output pin is used to output a first control signal; the first control signal is used to control the actuator 3 to rotate in a first direction; the second output pin of the control unit 4 can be connected to the second control pin of the brake; the second output pin is used to output a second control signal; the second control signal is used to control the actuator 3 to rotate in a second direction; the first direction is opposite to the second direction; the first signal and the second signal are alternately output.

[0134] Optionally, the initial operating parameters of the actuator 3 include the initial duty ratio of the first control signal and the initial duty ratio of the second control signal; if the initial duty ratio of the first control signal is the preset duty ratio lower limit and the initial duty ratio of the second control signal is the preset duty ratio upper limit, the control unit 4 can specifically be used for: After every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by a preset value, and control the duty cycle of the second control signal to decrease by the preset value; until the duty cycle of the first control signal reaches the preset duty cycle upper limit or the duty cycle of the second control signal reaches the preset duty cycle lower limit.

[0135] Optionally, the control unit 4 can also be used for: Judge whether the duty cycle of the first control signal reaches the preset duty cycle upper limit.

[0136] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by the preset value, and control the duty cycle of the second control signal to increase by the preset value.

[0137] Or, Judge whether the duty cycle of the second control signal reaches the preset duty cycle lower limit.

[0138] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by the preset value, and control the duty cycle of the second control signal to increase by the preset value.

[0139] Optionally, the initial operating parameters of the actuator 3 include the initial duty cycle of the first control signal and the initial duty cycle of the second control signal; if the initial duty cycle of the first control signal is the preset duty cycle upper limit and the initial duty cycle of the second control signal is the preset duty cycle lower limit; the control unit 4 can also be used for: After every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by a preset value, and control the duty cycle of the second control signal to increase by the preset value; until the duty cycle of the first control signal reaches the preset duty cycle lower limit or the duty cycle of the second control signal reaches the preset duty cycle upper limit.

[0140] Optionally, the control unit 4 is also used for: Judge whether the duty cycle of the first control signal reaches the preset duty cycle lower limit.

[0141] If so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by the preset value, and control the duty cycle of the second control signal to decrease by the preset value.

[0142] Or, Judge whether the duty cycle of the second control signal reaches the preset duty cycle upper limit; If so, after every preset number of cleaning cycles, control the duty ratio of the first control signal to increase by the preset value, and control the duty ratio of the second control signal to decrease by the preset value.

[0143] Optionally, after the control unit 4 determines the operating mode of the actuator 3 according to the user input signal or the sensor sensing signal, it can also be used for: Determine the operating parameters of the oral cleaning device according to at least one of the user input data, the historical operating data of the oral cleaning device, or the motion state data of the oral cleaning device.

[0144] Among them, the operating parameters of the oral cleaning device include the operating parameters of the actuator 3 and the operating parameters of the pump assembly 2.

[0145] The operating parameters of the actuator 3 include the preset operating frequency of the actuator 3, the preset duty ratio upper limit, the preset duty ratio lower limit, and the preset adjustment frequency of the duty ratio of the first control signal and / or the second control signal of the actuator 3; or, The preset operating frequency of the actuator 3, the preset duty ratio upper limit, the preset duty ratio lower limit of the duty ratio of the first control signal and / or the second control signal of the actuator 3, and the preset value of each adjustment of the duty ratio.

[0146] Optionally, the control unit 4 controls the actuator 3 to drive the first cleaning element 11 to reciprocate and vibrate at a predetermined angle.

[0147] Optionally, the angle range for the actuator 3 to drive the first cleaning element 11 to rotate unidirectionally along the rotation axis is from 0° to 20°.

[0148] Optionally, the oral cleaning device further includes a parameter setting component for the user to input data.

[0149] Optionally, the oral cleaning device further includes a sensor component for measuring the motion state data of the oral cleaning device.

[0150] Optionally, within one cleaning cycle, the actuator 3 operates for a first preset duration, and the pump assembly 2 operates for a second preset duration.

[0151] Optionally, the control unit 4 controls the actuator 3 and the pump assembly 2 to operate for multiple cleaning cycles, and the operating durations of the actuator 3 in multiple cleaning cycles are different, and / or the operating durations of the pump assembly 2 in multiple cleaning cycles are different.

[0152] Optionally, there are at least two cleaning cycles, namely a first cleaning cycle and a second cleaning cycle; within the first cleaning cycle, the pump assembly 2 operates for a first duration, and the actuator 3 operates for a second duration; within the second cleaning cycle, the pump assembly 2 operates for a third duration, and the actuator 3 operates for a fourth duration.

[0153] Optionally, the first duration ranges from 80 ms to 120 ms, and / or the second duration ranges from 80 ms to 120 ms.

[0154] Optionally, the third duration ranges from 120 ms to 250 ms, and / or the fourth duration ranges from 600 ms to 1000 ms.

[0155] Optionally, the control unit 4 is further configured to determine the duration of the cleaning cycle and the first duration according to the user input data or the historical operation data of the oral cleaning device; or determine the duration of the operation cycle and the second duration; or determine the duration of the operation cycle, the first duration, and the second duration.

[0156] Optionally, the oral cleaning device further includes a mode selection component; the mode selection component is used for the user to select the operation mode of the oral cleaning device; the operation modes of the oral cleaning device include a teeth cleaning mode, an oral irrigation mode, and a combined cleaning and irrigation mode.

[0157] The control element is specifically configured to determine the operation mode of the oral cleaning device according to the input signal of the mode selection component.

[0158] If the control element determines that the operation mode of the oral cleaning device is the combined cleaning and irrigation mode, it controls the actuator 3 and the pump assembly 2 to perform a periodic cleaning motion.

[0159] Optionally, the control element is further configured to stop the periodic cleaning motion when the actuator 3 and the pump assembly 2 perform the periodic cleaning motion to reach a preset cycle count or a target duration.

[0160] The above are only embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various modifications and changes can be made to the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

1. An oral cleaning device, characterized in that, The oral cleaning device includes: a cleaning component, an actuator, a pump component, and a control unit; The cleaning component includes a first cleaning element and a second cleaning element; the first cleaning element is used to clean the oral cavity in a mechanical friction manner; the second cleaning element is used to clean the oral cavity in a liquid impact manner; The actuator is coupled to the first cleaning element and is used to drive the first cleaning element to perform oral cleaning operations; The pump component is in communication with the second cleaning element and is used to pump oral cleaning liquid into the second cleaning element; The control unit is used to control the periodic operation of the actuator and the pump component; within one cleaning cycle, the actuator and the pump component each operate for a preset duration, and the actuator is started after a specified duration after the pump component finishes operating.

2. The oral cleaning device according to claim 1, wherein The specified duration is 20 ms to 60 ms.

3. The oral cleaning device according to claim 1, characterized in that, The specified duration is 40 ms.

4. The oral cleaning device according to claim 1, wherein, Specifically, the control unit is used to: Determine the operation mode of the actuator according to a user input signal or a sensor sensing signal; the operation mode of the actuator at least includes a first operation mode and a second operation mode; Control the operation of the actuator according to the operation mode of the actuator.

5. The oral cleaning device according to claim 4, characterized in that, The operation mode of the actuator is the first operation mode; Specifically, the control unit is used to: Control the start of the actuator according to the initial operation parameters of the actuator; Determine the operation parameters of the actuator within the current cleaning cycle after a preset number of cleaning cycles; Control the operation of the actuator based on the operation parameters of the actuator within the current cleaning cycle.

6. The oral cleaning device according to claim 4, wherein, Specifically, the control unit is used to: Determine the operation parameters of the actuator within the current cleaning cycle according to a preset mapping table or an operation parameter sequence table; or, Based on the target operation parameters and the initial operation parameters in the operation parameters, determine the parameter change amount; Determine the operation parameters of the actuator within the current cleaning cycle based on the operation parameters of the actuator in the previous cleaning cycle and the parameter change amount.

7. The oral cleaning device according to any one of claims 4 or 5, characterized in that, The first output pin of the control unit can be connected to the first control pin of the actuator; the first output pin is used to output a first control signal; the first control signal is used to control the actuator to rotate in a first direction; the second output pin of the control unit can be connected to the second control pin of the actuator; the second output pin is used to output a second control signal; the second control signal is used to control the actuator to rotate in a second direction; the first direction is opposite to the second direction; the first signal and the second signal are alternately output.

8. The oral cleaning device according to claim 7, wherein, The initial operation parameters of the actuator include the initial duty cycle of the first control signal and the initial duty cycle of the second control signal; If the initial duty cycle of the first control signal is the preset duty cycle lower limit and the initial duty cycle of the second control signal is the preset duty cycle upper limit, specifically, the control unit is used to: After every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by a preset value and control the duty cycle of the second control signal to decrease by the preset value; until the duty cycle of the first control signal reaches the preset upper limit of the duty cycle or the duty cycle of the second control signal reaches the preset lower limit of the duty cycle.

9. The oral cleaning device according to claim 8, characterized in that, The control unit is further configured to: determine whether the duty cycle of the first control signal reaches a preset upper limit of the duty cycle; if so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by the preset value, and control the duty cycle of the second control signal to increase by the preset value; or determine whether the duty cycle of the second control signal reaches a preset lower limit of the duty cycle; if so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by the preset value, and control the duty cycle of the second control signal to increase by the preset value.

10. The oral cleaning device according to claim 7, wherein The initial operating parameters of the actuator include the initial duty cycle of the first control signal and the initial duty cycle of the second control signal; if the initial duty cycle of the first control signal is the preset upper limit of the duty cycle and the initial duty cycle of the second control signal is the preset lower limit of the duty cycle; the control unit is further configured to: after every preset number of cleaning cycles, control the duty cycle of the first control signal to decrease by the preset value, and control the duty cycle of the second control signal to increase by the preset value; until the duty cycle of the first control signal reaches the preset lower limit of the duty cycle or the duty cycle of the second control signal reaches the preset upper limit of the duty cycle.

11. The oral cleaning device according to claim 10, characterized in that, The control unit is further configured to: determine whether the duty cycle of the first control signal reaches a preset lower limit of the duty cycle; if so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by the preset value, and control the duty cycle of the second control signal to decrease by the preset value; or determine whether the duty cycle of the second control signal reaches a preset upper limit of the duty cycle; if so, after every preset number of cleaning cycles, control the duty cycle of the first control signal to increase by the preset value, and control the duty cycle of the second control signal to decrease by the preset value.

12. The oral cleaning device according to claim 4, wherein After the control unit determines the operating mode of the actuator according to the user input signal or the sensor sensing signal, it is further configured to: determine the operating parameters of the oral cleaning device according to at least one of the user input data, the historical operating data of the oral cleaning device, or the motion state data of the oral cleaning device; wherein, the operating parameters of the oral cleaning device include the operating parameters of the actuator and the operating parameters of the pump assembly; the operating parameters of the actuator include the preset operating frequency of the actuator, the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset adjustment frequency of the duty cycle of the first control signal and / or the second control signal of the actuator; or the preset operating frequency of the actuator, the preset upper limit of the duty cycle, the preset lower limit of the duty cycle, and the preset value of each adjustment of the duty cycle of the first control signal and / or the second control signal of the actuator.

13. The oral cleaning device according to claim 1, wherein, The control unit controls the actuator to drive the first cleaning element to reciprocate and vibrate according to a preset duty cycle.

14. The oral cleaning device according to claim 13, wherein The angle range for the actuator to drive the first cleaning element to rotate unidirectionally along the rotation axis is from 0° to 20°.

15. The oral cleaning device according to claim 1, characterized in that, The oral cleaning device further includes a parameter setting component for a user to input data.

16. The oral cleaning device according to claim 1, wherein, The oral cleaning device further includes a sensor component for measuring the motion state data of the oral cleaning device.

17. The oral cleaning device according to claim 1, wherein, Within one cleaning cycle, the actuator operates for a first preset duration, and the pump assembly operates for a second preset duration.

18. The oral cleaning device according to claim 1, characterized in that, The control unit controls the actuator and the pump assembly to operate for multiple cleaning cycles, and the operating durations of the actuator in multiple cleaning cycles are different, and / or the operating durations of the pump assembly in multiple cleaning cycles are different.

19. The oral cleaning device according to claim 18, wherein, There are at least two cleaning cycles, which are a first cleaning cycle and a second cleaning cycle respectively; within the first cleaning cycle, the pump assembly operates for a first duration, and the actuator operates for a second duration; Within the second cleaning cycle, the pump assembly operates for a third duration, and the actuator operates for a fourth duration.

20. The oral cleaning device according to claim 19, wherein, The first duration ranges from 80 ms to 120 ms, and / or the second duration ranges from 80 ms to 120 ms.

21. The oral cleaning device according to claim 19, characterized in that, The third duration ranges from 120 ms to 250 ms, and / or the fourth duration ranges from 600 ms to 1000 ms.

22. The oral cleaning device according to claim 19, characterized in that, The control unit is further configured to determine the duration of the cleaning cycle and the first duration according to the user input data or the historical operation data of the oral cleaning device; or determine the duration of the operation cycle and the second duration; or determine the duration of the operation cycle, the first duration, and the second duration.

23. The oral cleaning device according to claim 1, wherein, The oral cleaning device further includes a mode selection component; the mode selection component is used for the user to select the operation mode of the oral cleaning device; the operation modes of the oral cleaning device include a tooth cleaning mode, an oral irrigating mode, and a combined flushing and brushing mode; The control element is specifically configured to determine the operation mode of the oral cleaning device according to the input signal of the mode selection component; If the control element determines that the operation mode of the oral cleaning device is the combined flushing and brushing mode, it controls the actuator and the pump assembly to perform a periodic cleaning motion.

24. The oral cleaning device according to claim 1, characterized in that, The control element is further configured to stop the periodic cleaning motion when the actuator and the pump assembly perform the periodic cleaning motion to reach a preset cycle count or a target duration.

25. A control method for an oral cleaning device, characterized in that, The control method includes: Controlling the actuator and the pump mechanism to operate periodically; within one cleaning cycle, the actuator and the pump assembly each operate for a preset duration, and the actuator is started after a specified duration after the pump assembly finishes operating; the actuator is coupled to the first cleaning element for driving the first cleaning element to perform oral cleaning operations; the first cleaning element is used for cleaning the oral cavity by mechanical friction; the pump assembly is coupled to the second cleaning element for pumping oral cleaning liquid into the second cleaning element; the second cleaning element is used for cleaning the oral cavity by liquid impact.

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