Oral care device, control method, electronic device, and storage medium

By introducing periodic cleaning motions and pulse width modulation signal control into the electric toothbrush, mimicking the sweeping effect of a human hand, the problem of poor tooth cleaning effect of electric toothbrushes is solved, achieving a more thorough oral cleaning.

WO2026060807A1PCT designated stage Publication Date: 2026-03-26SHENZHEN SOOCAS TECH CO LTD
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2026-03-26

AI Technical Summary

Technical Problem

Current electric toothbrush heads can only vibrate at high frequencies, resulting in poor teeth cleaning.

Method used

By introducing periodic cleaning motions into an electric toothbrush, including multiple cleaning motions, where the first angle of each cleaning motion is greater than the first angle of the adjacent cleaning motion and the second angle is smaller than the second angle of the adjacent cleaning motion, and using pulse width modulation signals to control the output shaft of the actuator to output these motions, the sweeping effect of a human hand swinging is mimicked.

Benefits of technology

It improves the comprehensiveness and depth of teeth cleaning, achieving a more thorough oral hygiene.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided area an oral care device, a control method, an electronic device, and a storage medium. A control assembly (14) of the oral care device outputs a drive signal to drive an output shaft (131) of an actuation assembly (13) to output a plurality of cleaning motions, so as to drive a cleaning unit (111) to perform corresponding motions. When the output shaft (131) outputs a plurality of cleaning motions, the cleaning unit (111) generates vibrations to clean teeth. Since first angles of some of the cleaning motions are greater than first angles of adjacent cleaning motions, and second angles of some of the cleaning motions are less than second angles of adjacent cleaning motions, center positions of swing angles of these cleaning motions are different from center positions of swing angles of adjacent cleaning motions. When the output shaft (131) outputs a plurality of cleaning motions, the cleaning unit (111) generates a sweeping effect, which improves the tooth cleaning effect.
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Description

Oral care device, control method, electronic device, and storage medium

[0001] This application claims priority to the Chinese patent application No. 202411311196.6, filed on September 19, 2024, and entitled "Oral care device, control method, electronic device, and storage medium", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of oral care, and in particular to an oral care device, a control method, an electronic device, and a storage medium. BACKGROUND

[0003] The working principle of the electric toothbrush is to use the motor to drive the brush head to vibrate at a high frequency, so that the bristles vibrate at a high frequency on the surface of the teeth, thereby decomposing the toothpaste into fine foam and deeply cleaning the tooth gaps to achieve cleaning of the teeth.

[0004] In the related art, the control component in the electric toothbrush uses a fixed driving signal to drive the motor. With such an electric toothbrush, the brush head can only vibrate at a high frequency, which has the technical problem of poor tooth cleaning effect.

[0005] To address the above problems, no effective solutions have been proposed so far. SUMMARY

[0006] Therefore, the embodiments of the present application provide an oral care device, a control method, an electronic device, and a storage medium, which can effectively improve the tooth cleaning effect.

[0007] In a first aspect, the embodiments of the present application provide an oral care device, comprising: a cleaning part having at least one cleaning unit; a holding part connected to the cleaning part, and an actuating component at least partially accommodated in the holding part, the actuating component comprising an output shaft engaged with the cleaning part; a control component generating a driving signal to drive the output shaft of the actuating component to output a periodic cleaning motion, and driving the cleaning unit with the periodic cleaning motion, wherein the periodic cleaning motion comprises a plurality of cleaning motions, each of the plurality of cleaning motions comprising a first motion and a second motion, the first motion comprising the output shaft rotating by a first angle in a first direction with the first axis as the center of rotation and then returning to the starting position, and the second motion comprising the output shaft rotating by a second angle in a second direction with the first axis as the center of rotation and then returning to the starting position; the first direction and the second direction are opposite; the first angle of at least one cleaning motion is greater than the first angle of an adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion.

[0008] In a second aspect, the embodiments of the present application provide a control method of an oral care device, applied to an oral care device, the oral care device comprising: a cleaning part, at least comprising a cleaning unit; a holding part connected with the cleaning part, and an actuating assembly at least partially accommodated in the holding part, the actuating assembly comprising an output shaft engaged with the cleaning part; and a control assembly;

[0009] The method comprises: the control assembly generating a driving signal to drive the output shaft of the actuating assembly to output a periodic cleaning motion, and driving the cleaning unit thereby; wherein the periodic cleaning motion comprises a plurality of cleaning motions, each of the plurality of cleaning motions comprising a first motion and a second motion; the driving signal is a pulse width modulation signal; the control assembly generates a pulse width modulation signal with a first duty cycle to cause the output shaft to output the first motion, and generates a pulse width modulation signal with a second duty cycle to cause the output shaft to output the second motion, the pulse width modulation signal with the first duty cycle and the pulse width modulation signal with the second duty cycle being different in current input direction; the first duty cycle of at least one cleaning motion is greater than the first duty cycle of an adjacent cleaning motion, and the second duty cycle is less than the second duty cycle of the adjacent cleaning motion.

[0010] In a third aspect, the embodiments of the present application also provide an electronic device comprising a processor and a memory storing program instructions, the processor being configured to execute any of the control methods of the oral care device provided by the embodiments of the present application when running the program instructions.

[0011] In a fourth aspect, the embodiments of the present application also provide a storage medium storing program instructions, the program instructions being executed to perform any of the control methods of the oral care device provided by the embodiments of the present application.

[0012] The oral care device provided by the embodiments of the present application, the control assembly can drive the output shaft of the actuating assembly to output a plurality of cleaning motions by outputting a driving signal, to drive the cleaning unit to perform corresponding motions. Therefore, when the output shaft outputs a plurality of cleaning motions, the cleaning unit will vibrate to clean the teeth. At the same time, since the first angle of at least part of the cleaning motions is greater than the first angle of an adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion, the center positions of the swing angles of these cleaning motions are different from the center positions of the swing angles of the adjacent cleaning motions. When the output shaft outputs a plurality of cleaning motions, the cleaning unit will produce a sweeping effect, so as to simulate the swing of a human hand to clean the teeth, to perform reciprocating sweeping cleaning on the same tooth area, to more comprehensively and deeply clean the oral cavity, and to improve the tooth cleaning effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Fig. 1 is a structural schematic diagram of an oral care device according to an embodiment of the present application;

[0015] Fig. 2 is a sweep amplitude curve of an oral care device according to an embodiment of the present application;

[0016] Fig. 3 is a flowchart of a control method of an oral care device according to an embodiment of the present application;

[0017] Fig. 4 is a structural schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0018] For the convenience of description, the following describes some nouns or terms related to the embodiments of the present application:

[0019] Duty cycle refers to the proportion of time that a signal is in a high state within a cycle. In motor control, duty cycle can be used to control the working mode and power output of the motor. Motor control is achieved by using pulse width modulation (PWM) technology. Pulse width modulation is referred to as pulse width modulation. PWM technology controls the size of the output voltage by changing the duty cycle of the pulse, thereby controlling the working state of the motor. Generally, the greater the duty cycle, the greater the power output of the motor, and the rotation angle of the motor output shaft will also increase accordingly; on the contrary, the smaller the duty cycle, the smaller the power output of the motor, and the rotation angle of the motor output shaft will also decrease accordingly.

[0020] In the related art, an electric toothbrush produces high-frequency vibration of the brush head to decompose toothpaste into fine foam, thereby deeply cleaning the tooth gaps and achieving cleaning of the teeth. However, this method has a small cleaning area, and has the technical problem of poor tooth cleaning effect.

[0021] In view of this, the embodiments of the present application provide an oral care device, a control method, an electronic device and a storage medium. During the operation of the oral care device, the brush head vibrates while sweeping, so that the oral cavity can be more comprehensively and deeply cleaned, and the tooth cleaning effect is improved.

[0022] The embodiment of the present application provides an oral care device, which is used for cleaning teeth. Specifically, as shown in Figure 1, the oral care device can be an electric toothbrush, which comprises a cleaning part 11, a holding part 12, an actuating assembly 13 and a control assembly 14. Wherein:

[0023] The connection between the cleaning part 11 and the holding part 12 is detachable connection or fixed connection. During the use of the oral care device, the user holds the holding part 12, and places the cleaning part 11 connected with the holding part 12 into the oral cavity, and then uses the cleaning part 11 to clean or care the oral cavity or teeth.

[0024] The control assembly 14 and the actuating assembly 13 can be arranged in the interior of the holding part 12. The actuating assembly 13 can comprise an output shaft 131, which can be connected with the cleaning part 11. The cleaning part 11 can comprise a cleaning unit 111, which can be a toothbrush head in particular. Specifically, the output shaft 131 can be connected with the cleaning unit 111.

[0025] The control assembly 14 can be electrically connected with the actuating assembly 13, and the control assembly 14 can output a driving signal to the actuating assembly 13 through the connecting line between them. Specifically, the actuating assembly 13 can comprise a driving chip. The driving chip can receive the driving signal output by the control assembly 14, amplify the power of the driving signal, and then drive the output shaft of the actuating assembly 13 to output a periodic cleaning motion. The periodic cleaning motion can comprise a plurality of cleaning motions. In this way, the cleaning unit 111 can move under the driving of the output shaft, so as to realize the tooth cleaning effect.

[0026] It should be noted that, in combination with Figure 1, the positional relationship between the control assembly 14 and the actuating assembly 13 in the interior of the holding part 12 is only exemplary, and the positional relationship of various components in the interior of the holding part 12 can be adjusted, which is not limited in the embodiment of the present application.

[0027] Specifically, the control assembly 14 is used for controlling the operation of the whole oral care device, which can be a microcontroller unit (MCU), and can also be a central processing unit (CPU) of the oral care device. The actuating assembly 13 can be a motor, such as a sonic motor, and the output shaft 131 is a motor shaft of the motor.

[0028] The implementation mode of the periodic cleaning motion output by the output shaft 131 of the actuating assembly 13 will be introduced below.

[0029] Firstly, the output shaft 131 rotates a first angle along a first direction with the first axis as the rotation center line, and then returns to the starting position, which is the first motion. Then, the output shaft 131 rotates a second rotation angle along a second direction with the first axis as the rotation center line, and then returns to the starting position, which is the second motion. The first direction and the second direction are opposite directions. Specifically, the first axis can be the center line of the output shaft 131.

[0030] In one example, the first direction is the clockwise direction, and the second direction is the counterclockwise direction. In another example, the first direction is the counterclockwise direction, and the second direction is the clockwise direction.

[0031] The output shaft 131 continuously or intermittently outputs a plurality of cleaning motions, and the cleaning unit 111 generates vibrations corresponding to the cleaning motions to form periodic cleaning motions, thereby achieving the cleaning effect on the teeth.

[0032] Meanwhile, in the aforementioned plurality of cleaning motions, the first angle of one or more cleaning motions can be greater than the first angle of an adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion. The amplitude of the cleaning motion is the sum of the first angle and the second angle. The center position of the amplitude of the cleaning motion is different from the center position of the amplitude of the adjacent cleaning motion.

[0033] If the first angle of the cleaning motion is equal to the second angle, the center position of the swing angle of the cleaning motion is the starting position. If the first angle of the cleaning motion is greater than the second angle, the center position of the swing angle of the cleaning motion is located on the side deviated from the starting position to the first direction. If the first angle of the cleaning motion is less than the second angle, the center position of the swing angle of the cleaning motion is located on the side deviated from the starting position to the second direction.

[0034] For example, the first direction is the clockwise direction, the second direction is the counterclockwise direction, the first angle of the cleaning motion A is 3 degrees, and the second angle of the cleaning motion A is 1 degree. The angle of the swing angle of the cleaning motion A is 4 degrees, and the center position of the swing angle of the cleaning motion A is the position rotated 1 degree from the starting position to the clockwise direction. The first angle of the cleaning motion B is 1 degree, and the second angle of the cleaning motion B is 3 degrees. The angle of the swing angle of the cleaning motion B is 4 degrees, and the center position of the swing angle of the cleaning motion B is the position rotated 1 degree from the starting position to the counterclockwise direction.

[0035] When the driving signal generated by the control component 14 drives the output shaft 131 of the actuating component 13 to output multiple cleaning motions, the cleaning unit 111 can generate a sweeping effect, and can imitate a human hand to swing the cleaning unit 111 around the first axis as the center of rotation, expand the cleaning range of the teeth, clean the teeth more comprehensively and deeply, and improve the teeth cleaning effect, because the center position of the swing angle of at least part of the cleaning motions is different from the center position of the swing angle of the adjacent cleaning motions.

[0036] For example, according to the output order, the control component 14 generates a driving signal, and the output shaft 131 of the actuating component 13 outputs a first cleaning motion in which the first angle and the second angle are the same; a second cleaning motion in which the first angle is greater than the first angle of the first cleaning motion, and the second angle of the second cleaning motion is less than the second angle of the first cleaning motion, thereby achieving the sweeping effect and the vibration effect; a third cleaning motion in which the first angle can be greater than the first angle of the second cleaning motion, and the second angle of the third cleaning motion is less than the second angle of the second cleaning motion. Of course, as an embodiment, the first angle of the third cleaning motion can be equal to the first angle of the second cleaning motion, and the second angle of the third cleaning motion can be equal to the second angle of the second cleaning motion. There can be many other embodiments, which are not listed one by one here.

[0037] In the embodiments of the present application, the cleaning unit 111 will generate a sweeping effect in addition to the vibration, so that the teeth can be cleaned more comprehensively and deeply, thereby improving the teeth cleaning effect.

[0038] In the embodiments of the present application, the control component 14 can drive the output shaft 131 of the actuating component 13 to output multiple cleaning motions by outputting a driving signal, so as to drive the cleaning unit 111 to perform corresponding movements. Therefore, when the output shaft 131 outputs multiple cleaning motions, the cleaning unit 111 will generate vibration, thereby cleaning the teeth. At the same time, because the first angle of some cleaning motions can be greater than the first angle of the adjacent cleaning motions, and the second angle is less than the second angle of the adjacent cleaning motions, the center position of the swing angle of these cleaning motions is different from the center position of the swing angle of the adjacent cleaning motions. When the output shaft 131 continuously or intermittently outputs multiple cleaning motions, the cleaning unit 111 will generate a sweeping effect, thereby imitating a human hand to swing the brush head to clean the teeth, reciprocally sweeping and cleaning the same tooth area, more comprehensively and deeply cleaning the oral cavity, and improving the teeth cleaning effect.

[0039] In some embodiments of the present application, the amplitude of the cleaning motion is the sum of the first angle and the second angle of the cleaning motion; the amplitude of the cleaning motion is the same as the amplitude of the adjacent cleaning motion; or the amplitudes of the multiple cleaning motions are the same.

[0040] In the embodiments of the present application, the sum of the first angle and the second angle of each cleaning motion is also referred to as the amplitude. In the aforementioned plurality of cleaning motions, the amplitude of at least one cleaning motion can be configured to be the same as the amplitude of the adjacent cleaning motion. Since the first angle of the cleaning motion is greater than the first angle of the adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion, the center position of the swing angle of the cleaning motion is different from the center position of the swing angle of the adjacent cleaning motion. Therefore, when the output shaft 131 outputs the cleaning motion and the adjacent cleaning motion, the center position of the swing angle of the cleaning motion will rotate, the cleaning unit 111 produces a sweeping effect, and the tooth cleaning effect can be improved.

[0041] For example, the cleaning motion and the adjacent cleaning motion herein can be the aforementioned cleaning motion A and cleaning motion B, respectively, and the amplitudes of the two are both 4 degrees, but the first angles and the second angles of the two are not equal, and therefore the center positions of the swing angles of the two are also different.

[0042] In addition, in the aforementioned plurality of cleaning motions, all the cleaning motions can be configured to have the same amplitude. Among them, the first angle of at least one cleaning motion is greater than the first angle of the adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion. The first angles of the remaining cleaning motions can be equal to or not equal to (not equal includes greater than and less than) the first angles of the adjacent cleaning motions, and the second angles of the remaining cleaning motions can also be equal to or not equal to the second angles of the adjacent cleaning motions, which are not limited in the embodiments of the present application. Since the amplitude of each cleaning motion remains constant when the above cleaning motions are output, the output cleaning motion is regular and not messy, thereby improving the cleaning effect.

[0043] In some embodiments of the present application, in the output order: the control component 14 generates a driving signal, so that the first angle of the current cleaning motion is not less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not greater than the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a first preset threshold; and / or, the control component 14 generates a driving signal, so that the first angle of the current cleaning motion is not greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not less than the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a second preset threshold.

[0044] In the embodiments of the present application, under the driving of the driving signal generated by the control assembly 14, the output shaft 131 of the actuating assembly 13 can output periodic cleaning motions. According to the output order of the cleaning motions, under the driving of the driving signal, the first angle of the current cleaning motion output by the output shaft 131 can be greater than or equal to the first angle of the previous cleaning motion, and the second angle of the current cleaning motion can be less than or equal to the second angle of the previous cleaning motion, so that the first angle of the cleaning motion continuously or intermittently increases, and correspondingly, the second angle continuously or intermittently decreases, so that the cleaning unit 111 sweeps along the first direction until the first angle of the cleaning motion reaches the first preset threshold.

[0045] The first preset threshold determines the maximum swing angle of the cleaning unit 111 in the first direction, that is, determines the cleaning sweeping range of the cleaning unit 111 in the first direction. The user can set the size of the first preset threshold according to actual needs. For example, the first preset threshold can be an angle value less than 20 degrees, 16 degrees or 12 degrees.

[0046] Similarly, the control assembly 14 can generate a driving signal according to the output order of the cleaning motions, so that under the driving of the driving signal, the first angle of the current cleaning motion output by the output shaft 131 is less than or equal to the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is greater than or equal to the second angle of the previous cleaning motion, so that the first angle of the cleaning motion continuously or intermittently decreases, and the second angle continuously or intermittently increases, so that the cleaning unit 111 sweeps along the second direction until the first angle of the cleaning motion reaches the second preset threshold. The second preset threshold determines the minimum swing angle of the cleaning unit 111 in the first direction. The user can set the size of the second threshold according to actual needs. In actual application, the second preset threshold can be as small as 0 degrees. When the first angle of the cleaning motion reaches the second preset threshold, the second angle of the corresponding cleaning motion can be an angle value less than 20 degrees, 16 degrees or 12 degrees.

[0047] It should be noted that the first angle of the current cleaning motion can be equal to the first angle of the previous cleaning motion, and the second angle of the current cleaning motion can also be equal to the second angle of the previous cleaning motion, so that during the process of gradually increasing or decreasing the first angle of the cleaning motion, the first angles of two or more consecutive cleaning motions can be equal. Similarly, during the process of gradually decreasing or increasing the second angle of the cleaning motion, the second angles of two or more consecutive cleaning motions can be equal. At this time, the cleaning unit 111 only cleans the teeth by vibration, and does not sweep, and cleans by multiple ways.

[0048] The output shaft 131 in the embodiments of the present application can also output the above two cleaning motions, so that in the first half period, the first angle of the cleaning motion can be first increased and the second angle of the cleaning motion can be decreased until the first angle of the cleaning motion reaches a first preset threshold. Then, in the second half period, the first angle of the cleaning motion can be decreased and the second angle of the cleaning motion can be increased until the first angle of the cleaning motion reaches a second preset threshold. The output shaft 131 can generate the effect of repeatedly sweeping back and forth in the first direction and the second direction by periodically outputting the above two motions.

[0049] In some embodiments of the present application, the control component 14 generates a driving signal to increase the first angle of the current cleaning motion by a preset increment value compared with the first angle of the previous cleaning motion, and to decrease the second angle of the current cleaning motion by a preset decrement value compared with the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a first preset threshold; and / or, the control component 14 generates a driving signal to decrease the first angle of the current cleaning motion by a preset decrement value compared with the first angle of the previous cleaning motion, and to increase the second angle of the current cleaning motion by a preset increment value compared with the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a second preset threshold; wherein the increment value of the current cleaning motion is equal to the decrement value.

[0050] In the embodiments of the present application, under the driving of the driving signal generated by the control component 14, the output shaft 131 of the actuating component 13 can output periodic cleaning motions. According to the output order of the cleaning motions, under the driving of the driving signal, the first angle of the current cleaning motion output by the output shaft 131 can be increased by a preset increment value compared with the first angle of the previous cleaning motion, and the second angle of the current cleaning motion can be decreased by a preset decrement value compared with the first angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a first preset threshold. Since the increment value of the current cleaning motion is equal to the decrement value, the amplitude of the current cleaning motion is the same as the amplitude of the previous cleaning motion, and the rotation angle of the center position of the swing angle of the cleaning unit 111 in the first direction is equal to the increment value and the decrement value.

[0051] In one example, the driving signal generated by the control component 14 can drive the output shaft 131 of the actuating component 13 to output 12 cleaning motions, i.e., cleaning motion 1 to cleaning motion 12, in a half-period cleaning motion, and the preset increment value and the preset decrement value are both 1 degree, and the sum of the first angle and the second angle of each cleaning motion is 13 degrees. The first angle corresponding to the cleaning motion 1 is 1 degree, and the second angle is 12 degrees. The first angle corresponding to the cleaning motion 2 is 2 degrees, and the second angle is 11 degrees. The first angle corresponding to the cleaning motion 3 is 3 degrees, and the second angle is 10 degrees. Similarly, the first angle corresponding to the cleaning motion 11 is 11 degrees, and the second angle is 2 degrees. The first angle corresponding to the cleaning motion 12 is 12 degrees, and the second angle is 1 degree.

[0052] Similarly, the control component 14 can generate a driving signal according to the output order of the cleaning motions, so that under the driving of the driving signal, the first angle of the current cleaning motion output by the output shaft 131 can be reduced by the preset decrement value compared with the first angle of the previous cleaning motion, and the second angle of the current cleaning motion can be increased by the preset increment value compared with the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches the second preset threshold value. Since the increment value of the current cleaning motion is equal to the decrement value, the amplitude of the current cleaning motion is the same as the amplitude of the previous cleaning motion, and the rotation angle of the center position of the swing angle of the cleaning unit 111 along the second direction is equal to the increment value and the decrement value.

[0053] Briefly, the cleaning motions output by the output shaft 131 of the actuating component 13 are in the reverse order of the above-mentioned cleaning motions. In one example, the driving signal generated by the control component 14 can drive the output shaft 131 of the actuating component 13 to output 12 cleaning motions, i.e., cleaning motion 13 to cleaning motion 24, and the preset increment value and the preset decrement value are both 1 degree, and the sum of the first angle and the second angle of each cleaning motion is 13 degrees. The first angle and the second angle of the cleaning motion 13 are the same as those of the cleaning motion 12, the first angle and the second angle of the cleaning motion 14 are the same as those of the cleaning motion 11, and so on, and the first angle and the second angle of the cleaning motion 24 are the same as those of the cleaning motion 1.

[0054] In addition, for different cleaning motions, the preset increment value thereof relative to the previous cleaning motion can be different, and accordingly, the preset decrement value thereof relative to the previous cleaning motion is also different, so that the rotation speed of the center position of the swing angle of the cleaning motion changes.

[0055] The output shaft 131 in the embodiments of the present application continuously adjusts the first angle and the second angle of each cleaning motion, so that the cleaning unit outputs a cleaning motion with the same amplitude but a continuously changing center position of the swing angle, and the center position of the swing angle continuously reciprocates to form a stable and orderly sweeping vibration. The output shaft 131 can also periodically output the above two motions, so as to generate an effect of continuously and repeatedly sweeping back and forth in the first direction and the second direction.

[0056] In some embodiments of the present application, the control component 14 controls the direction of the current flowing into the actuating component 13 to determine the rotation direction of the output shaft 131; and / or, the driving signal is a pulse width modulation signal, the control component 14 generates a pulse width modulation signal with a first duty cycle to make the output shaft 131 correspondingly output a first motion, and the control component 14 generates a pulse width modulation signal with a second duty cycle to make the output shaft 131 correspondingly output a second motion.

[0057] In the embodiments of the present application, the rotation direction of the output shaft 131 of the actuating component 13 is different when the direction of the current flowing into the actuating component 13 is different. For example, the actuating component 13 can include a positive input end and a negative input end. When the current flows from the positive input end, the rotation direction of the output shaft 131 of the actuating component 13 is the clockwise direction. When the current flows from the negative input end, the rotation direction of the output shaft 131 of the actuating component 13 is the counterclockwise direction. Therefore, the control component 14 can control the rotation direction of the output shaft 131 to be the clockwise direction or the counterclockwise direction by controlling the direction of the current flowing into the actuating component 13.

[0058] The driving signal can be a pulse width modulation signal, and the duty cycle of the pulse width modulation signal determines the size of the first angle and the second angle of the rotation of the output shaft 131. The control component 14 can generate a pulse width modulation signal with a first duty cycle. Under the driving of the pulse width modulation signal, the output shaft 131 of the actuating component 13 can output a first motion, and the first angle of the first motion depends on the size of the first duty cycle. The larger the first duty cycle is, the larger the first angle is.

[0059] Similarly, the control component 14 can also generate a pulse width modulation signal with a second duty cycle. Under the driving of the pulse width modulation signal, the output shaft 131 of the actuating component 13 can output a second motion, and the second angle of the second motion depends on the size of the second duty cycle. The larger the second duty cycle is, the larger the second angle is.

[0060] In some embodiments of the present application, the sum of the first duty cycle and the second duty cycle corresponding to the cleaning motion is the output amount; the output amounts of at least two cleaning motions in the plurality of cleaning motions are the same; or, the output amounts of the plurality of cleaning motions are the same.

[0061] In the embodiments of the present application, the duty cycle of the driving signal corresponding to the first motion is a first duty cycle, and the duty cycle of the driving signal corresponding to the second motion is a second duty cycle. The sum of the first duty cycle and the second duty cycle can be referred to as an output. In the plurality of cleaning motions, the output of at least two cleaning motions can be made the same, so that the amplitudes of the at least two cleaning motions can be made the same.

[0062] In addition, in the plurality of cleaning motions described above, all the cleaning motions can be configured to have the same output, so that the amplitudes of all the cleaning motions can be made the same. Among the cleaning motions, the first angle of at least one cleaning motion is greater than the first angle of an adjacent cleaning motion, and the second angle is less than the second angle of the adjacent cleaning motion. When the cleaning motions are output, the cleaning unit 111 will generate a sweeping effect. The first angles of the remaining cleaning motions can be equal to or not equal to the first angles of the adjacent cleaning motions, and the second angles of the remaining cleaning motions can be equal to or not equal to the second angles of the adjacent cleaning motions. The embodiments of the present application do not limit this.

[0063] Since the amplitudes of the cleaning motions remain constant when the above cleaning motions are output, the output cleaning motions can be regular and not messy, so that the tooth cleaning effect can be improved.

[0064] In some embodiments of the present application, the control component 14 generates a pulse width modulation signal adjusting the first duty cycle and a pulse width modulation signal adjusting the second duty cycle, so that the first angle of the current cleaning motion is not less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not greater than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, the control component 14 generates a pulse width modulation signal adjusting the first duty cycle and a pulse width modulation signal adjusting the second duty cycle, so that the first angle of the current cleaning motion is not greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not less than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

[0065] In the embodiments of the present application, under the driving of the driving signal generated by the control component 14, the output shaft 131 of the actuating component 13 can output periodic cleaning motions. The control component 14 can generate the pulse width modulation signal adjusting the first duty ratio and the pulse width modulation signal adjusting the second duty ratio according to the output order of the cleaning motions, so that under the driving of the pulse width modulation signal, the first angle of the current cleaning motion is greater than or equal to the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is less than or equal to the second angle of the previous cleaning motion, until the first duty ratio of the current cleaning motion reaches the third preset threshold. This makes the center position of the swing angle of the cleaning motion continuously or intermittently rotate in the first direction, generating a sweeping effect. The size of the third preset threshold determines the maximum value of the first angle, and when the first duty ratio reaches the third preset threshold, the first angle of the cleaning motion reaches the maximum value, and the center position of the swing angle of the cleaning unit 111 reaches the limit value in the first direction.

[0066] Similarly, the control component 14 can also generate the pulse width modulation signal adjusting the first duty ratio and the pulse width modulation signal adjusting the second duty ratio according to the output order of the cleaning motions, so that under the driving of the pulse width modulation signal, the first angle of the current cleaning motion is less than or equal to the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is greater than or equal to the second angle of the previous cleaning motion, until the first duty ratio of the current cleaning motion reaches the fourth preset threshold. This makes the center position of the swing angle of the cleaning motion continuously rotate in the second direction, generating a sweeping effect. The size of the fourth preset threshold determines the minimum value of the first angle, and when the first duty ratio reaches the fourth preset threshold, the first angle of the cleaning motion reaches the minimum value, and the center position of the swing angle of the cleaning unit 111 reaches the limit value in the second direction.

[0067] It should be noted that the first duty ratio of the current cleaning motion can be equal to the first duty ratio of the previous cleaning motion, and the second duty ratio of the current cleaning motion can also be equal to the second duty ratio of the previous cleaning motion, so that during the continuous or intermittent increase / decrease of the first duty ratio of the cleaning motion, the first duty ratio and the first angle of two or more consecutive cleaning motions can be equal. Similarly, during the continuous or intermittent decrease / increase of the second duty ratio of the cleaning motion, the second duty ratio and the second angle of two or more consecutive cleaning motions can be equal. At this time, the cleaning unit 111 only cleans the teeth by vibration, without sweeping.

[0068] The output shaft 131 in the embodiments of the present application can also output the above two cleaning motions, so that by adjusting the duty cycle of the pulse width modulation signal, in the first half cycle, the first angle of the current cleaning motion continuously or intermittently increases, and the second angle continuously or intermittently decreases, the center position of the swing angle of the cleaning motion first rotates in the first direction, forming a sweep in the first direction. Then, in the second half cycle, the first angle of the cleaning motion continuously or intermittently decreases, and the second angle continuously or intermittently increases, the center position of the swing angle of the cleaning motion rotates in the second direction, forming a sweep in the second direction. The output shaft 131 periodically outputs the above two motions, thereby generating the effect of repeatedly sweeping back and forth in the first direction and the second direction.

[0069] In some embodiments of the present application, the cleaning motion in the periodic motion has the same output amount, and in the output order: the control component 14 generates a pulse width modulation signal with an increased first duty cycle and a decreased second duty cycle, so that the first angle of the current cleaning motion is greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is less than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, the control component 14 generates a pulse width modulation signal with a decreased first duty cycle and an increased second duty cycle, so that the first angle of the current cleaning motion is less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is greater than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

[0070] In the embodiments of the present application, the cleaning motion in the periodic motion has the same output amount, so the cleaning motion in the periodic motion has the same amplitude.

[0071] Under the driving of the driving signal generated by the control component 14, the output shaft 131 of the actuating component 13 can output a plurality of periodic cleaning motions. The control component 14 can generate a pulse width modulation signal with an increased first duty cycle and a decreased second duty cycle according to the output order of the cleaning motion, so that under the driving of the pulse width modulation signal, the first angle of the current cleaning motion is greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is less than the second angle of the previous cleaning motion, until the first duty cycle of the current cleaning motion reaches a third preset threshold.

[0072] The first duty cycle of the adjacent cleaning motion is not equal, and the second duty cycle is not equal in the embodiments of the present application, so that the first angle of the adjacent cleaning motion is not equal, and the second angle is not equal. The first angle of the cleaning motion presents a continuous upward trend, and the second angle presents a continuous downward trend. This makes the center position of the swing angle of the cleaning motion continuously rotate in the first direction, producing a sweeping effect. When the first duty cycle reaches a third preset threshold, the center position of the swing angle of the cleaning motion reaches a limit value in the first direction.

[0073] Similarly, the control component 14 can generate a pulse width modulation signal that reduces the first duty cycle and increases the second duty cycle according to the output order of the cleaning motion, so that under the driving of the pulse width modulation signal, the first angle of the current cleaning motion is less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is greater than the second angle of the previous cleaning motion, until the first duty cycle of the current cleaning motion reaches a fourth preset threshold.

[0074] In the embodiments of the present application, the first duty cycle of the adjacent cleaning motion is not equal, and the second duty cycle is not equal, so that the first angle of the adjacent cleaning motion is not equal, and the second angle is not equal. The first angle of the cleaning motion presents a continuous downward trend, and the second angle presents a continuous upward trend. This makes the center position of the swing angle of the cleaning motion continuously rotate in the second direction, producing a sweeping effect. When the first duty cycle reaches a fourth preset threshold, the center position of the swing angle of the cleaning motion reaches a limit value in the second direction.

[0075] The output shaft 131 in the embodiments of the present application continuously adjusts the first angle and the second angle of each cleaning motion, so that the cleaning unit outputs a cleaning motion with the same amplitude but a continuously changing center position of the swing angle, and the center position of the swing angle continuously reciprocates, forming a stable and orderly sweeping vibration. The output shaft 131 can produce an effect of forming back-and-forth repeated sweeping in the first direction and the second direction by periodically outputting the above two motions.

[0076] In some embodiments of the present application, the control component 14 determines the amplitude, the first angle and / or the second angle according to user operation, sensing data and / or historical use data.

[0077] In the embodiments of the present application, the control component 14 can determine the amplitude of the cleaning motion according to user operation. Specifically, a plurality of keys for selecting the amplitude can be provided on the oral care device, and the user can generate different control signals by selecting different keys, thereby controlling the amplitude of the cleaning motion.

[0078] For example, if the user prefers to clean the teeth at a larger angle, the user can set the amplitude of the cleaning motion to a larger value through corresponding user operation. If the user prefers to clean the teeth at a smaller angle, the user can set the amplitude of the cleaning motion to a smaller value through corresponding user operation.

[0079] In addition, the oral care device can be provided with a sensor, such as a gyroscope. When different actions of the user are detected, the amplitude of the cleaning motion can be determined according to the type of the action.

[0080] Different users have different habits and needs when using the oral care device. The control component 14 can determine the amplitude of the cleaning motion based on habit data of the user using the oral care device or historical use data such as user customized setting data, so as to make it more in line with the personal habits of the user, and thus further improve the personal experience of the user.

[0081] Similarly, the control component 14 can also control and adjust the first angle and / or the second angle, control and adjust the increment / decrement value of the first angle and / or the second angle, so as to adjust the sweep speed, amplitude and other parameters.

[0082] In some embodiments of the present application, the control component 14 determines the output, the first duty cycle and / or the second duty cycle according to user operation, sensing data and / or historical use data.

[0083] In the embodiments of the present application, the control component 14 can determine the output size of the cleaning motion according to user operation. Specifically, a plurality of keys for selecting the output size can be provided on the oral care device. The user can select different keys to generate different control signals, so as to control the output size of the cleaning motion, that is, the amplitude of the cleaning motion.

[0084] For example, if the user prefers to clean the teeth at a larger angle, the output of the cleaning motion can be set to a larger value, so that the amplitude of the cleaning motion is larger. If the user prefers to clean the teeth at a smaller angle, the output of the cleaning motion can be set to a smaller value, so that the amplitude of the cleaning motion is smaller.

[0085] In addition, the oral care device can be provided with a sensor, such as a gyroscope. When different actions of the user are detected, the amplitude of the cleaning motion can be determined according to the type of the action.

[0086] Different users have different habits and needs for using the oral care device, and the control component 14 can determine the output size of the cleaning motion based on historical use data such as habit data of the user for using the oral care device or custom setting data of the user, so as to make it more in line with the personal habits of the user, and thus further improve the personal experience of the user.

[0087] Similarly, the control component 14 can also control and adjust the first duty cycle and / or the second duty cycle, and control and adjust the increment value / decrement value of the first angle and / or the second angle in the same way, so as to adjust the sweep vibration speed, amplitude and other parameters.

[0088] In some embodiments of the present application, the frequency of the actuating component 13 is 100 Hz or more.

[0089] In the embodiments of the present application, as shown in FIG. 2, the pressure applied on the holding portion 12 also affects the amplitude of the output shaft 131. For example, the pressure applied by the user on the holding portion 12 can be 0 gram, 50 gram, 100 gram, 150 gram, 300 gram or 400 gram.

[0090] When the frequency of the actuating component 13 is different, the amplitude of the output shaft 131 is also different under the condition that the pressure applied by the user on the holding portion 12 is determined. Since the frequency of the actuating component 13 is related to the amplitude of the output shaft 131 of the actuating component 13, the amplitude of the output shaft 131 can be changed by changing the frequency of the actuating component 13. In order to control the amplitude of the output shaft 131 within a reasonable range, the frequency of the actuating component 13 can be controlled to be 100 Hz or more.

[0091] For example, when the frequency of the actuating component 13 is 100 Hz or more, the amplitude of the output shaft 131 of the actuating component 13 is greater than 3 degrees, so that the amplitude is within a reasonable range and the amplitude is not too small, low-frequency large-angle sweep vibration is achieved, and the teeth can be cleaned more effectively.

[0092] In some embodiments of the present application, the frequency of the actuating component 13 is in the range of 100-300 Hz.

[0093] In the embodiments of the present application, in order to better control the amplitude of the output shaft 131, avoid or reduce the force load applied by the user / teeth on the cleaning unit 111 to cause the power of the actuating assembly 13 to weaken, causing the amplitude to be too small, the control assembly 14 can control the frequency of the driving signal to be in the range of 100-300 Hz, so that the frequency of the actuating assembly 13 is in the range of 100-300 Hz, and then the amplitude of the output shaft 131 is in a reasonable range, realizing low-frequency large-swing-angle sweep vibration. In this way, the harm to the gums when the amplitude is too large can be avoided, and the technical problem of poor cleaning effect on the teeth when the amplitude is too small can also be avoided.

[0094] In some embodiments of the present application, the frequency of the actuating assembly 13 is substantially constant.

[0095] In the embodiments of the present application, the control assembly 14 can output a driving signal with a substantially constant frequency, so that the frequency of the actuating assembly 13 is also substantially constant, and further can make the frequency of the output shaft 131 be substantially constant, which can improve the user's experience.

[0096] Based on the oral care device shown in FIG. 1, the embodiments of the present application provide a control method of an oral care device. The method is applied to the aforementioned oral care device, and the execution subject is the control assembly 14 of the oral care device. In combination with FIG. 3, the method includes the following steps:

[0097] S31, the control assembly 14 generates a driving signal to drive the output shaft 131 of the actuating assembly 13 to output a periodic cleaning motion, and drives the cleaning unit 111 by the periodic cleaning motion;

[0098] The periodic cleaning motion includes a plurality of cleaning motions, and each of the plurality of cleaning motions includes a first motion and a second motion. The driving signal is a pulse width modulation signal. The control assembly 14 generates a pulse width modulation signal with a first duty cycle to make the output shaft 131 correspondingly output the first motion. The control assembly 14 generates a pulse width modulation signal with a second duty cycle to make the output shaft 131 correspondingly output the second motion. The pulse width modulation signal with the first duty cycle and the pulse width modulation signal with the second duty cycle have different current input directions. The first duty cycle of at least one cleaning motion is greater than the first duty cycle of an adjacent cleaning motion, and the second duty cycle is less than the second duty cycle of the adjacent cleaning motion.

[0099] In some embodiments of the present application, the sum of the first duty cycle and the second duty cycle corresponding to the cleaning motion is the output quantity. In the plurality of cleaning motions, the output quantities of at least two cleaning motions are the same. Or, the output quantities of the plurality of cleaning motions are the same.

[0100] In some embodiments of the present application, in the output order: the control component 14 generates the pulse width modulation signal adjusting the first duty cycle and the pulse width modulation signal adjusting the second duty cycle, so that the first duty cycle of the current cleaning motion is not less than the first duty cycle of the previous cleaning motion, and the second duty cycle of the current cleaning motion is not greater than the second duty cycle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches the third preset threshold; and / or, the control component 14 generates the pulse width modulation signal adjusting the first duty cycle and the pulse width modulation signal adjusting the second duty cycle, so that the first duty cycle of the current cleaning motion is not greater than the first duty cycle of the previous cleaning motion, and the second duty cycle of the current cleaning motion is not less than the second duty cycle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches the fourth preset threshold.

[0101] In some embodiments of the present application, the cleaning motion in the periodic motion has the same output amount; the control component 14 generates the pulse width modulation signal increasing the first duty cycle and the pulse width modulation signal decreasing the second duty cycle, until the first duty cycle of the cleaning motion reaches the third preset threshold; and / or, the control component 14 generates the pulse width modulation signal decreasing the first duty cycle and the pulse width modulation signal increasing the second duty cycle, until the first duty cycle of the cleaning motion reaches the fourth preset threshold.

[0102] In some embodiments of the present application, the control component 14 determines the output amount, the first duty cycle and / or the second duty cycle according to user operation, sensing data and / or historical use data.

[0103] In some embodiments of the present application, the frequency of the actuating component 13 is 100 Hz or higher.

[0104] In some embodiments of the present application, the frequency of the actuating component 13 is in the range of 100-300 Hz.

[0105] In some embodiments of the present application, the frequency of the actuating component 13 is substantially constant.

[0106] The control method of the oral care device provided by the embodiments of the present application corresponds to the action of the control component 14 in the above-mentioned embodiments, and has the same implementation principle and technical effects, which will not be described here.

[0107] In a third aspect, the embodiments of the present application provide an electronic device, which can effectively improve the cleaning effect of teeth.

[0108] As shown in FIG. 4, the electronic device provided by the embodiment of the present application can include a processor 41 and a memory 42. The electronic device 4 can further include a communication interface 43 and a bus 44. The processor 41, the communication interface 43 and the memory 42 can communicate with each other through the bus 44. The communication interface 43 can be used for information transmission. The processor 41 can invoke the logic instructions in the memory 42 to execute the control method of the oral care device in the above embodiment.

[0109] In addition, the logic instructions in the memory 42 described above can be implemented in the form of a software function unit and sold or used as an independent product, which can be stored in a computer readable storage medium.

[0110] The memory 42 as a computer readable storage medium can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiment of the present application. The processor 41 executes the function application and data processing by running the program instructions / modules stored in the memory 42, that is, implements the control method of the oral care device in the above embodiment.

[0111] The memory 42 can include a program storage area and a data storage area. The program storage area can store an operating system and application programs required by at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 42 can include a high-speed random access memory and can also include a non-volatile memory.

[0112] In a fourth aspect, the embodiment of the present application further provides a computer readable storage medium, which stores computer executable instructions, and the computer executable instructions are configured to execute the control method of the oral care device in the above embodiment.

[0113] The storage medium described above can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0114] The above description and drawings sufficiently show the embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural, logical, electrical, process, and other changes. The embodiments represent only a few of the possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be changed. Parts and features of some embodiments can be included in or replace parts and features of other embodiments. Moreover, the words used in the present application are only used to describe the embodiments and not to limit the claims.

Claims

1. An oral care device characterized by, The application relates to a cleaning device, comprising: a cleaning part, at least comprising a cleaning unit; a holding part connected with the cleaning part, and an actuating assembly at least partially accommodated in the holding part, the actuating assembly comprising an output shaft engaged with the cleaning part; a control assembly generating a driving signal to drive the output shaft of the actuating assembly to output periodic cleaning motions, and driving the cleaning unit thereby, wherein the periodic cleaning motions comprise a plurality of cleaning motions, each of the cleaning motions comprising a first motion and a second motion, the first motion comprising that the output shaft rotates a first angle in a first direction with the first axis as the rotation center line and returns to the initial position, and the second motion comprising that the output shaft rotates a second angle in a second direction with the first axis as the rotation center line and returns to the initial position; the first direction and the second direction are opposite; the first angle of at least one cleaning motion is greater than the first angle of an adjacent cleaning motion, and the second angle is smaller than the second angle of the adjacent cleaning motion.

2. The apparatus of claim 1, wherein, the amplitude of the cleaning motion is the sum of the first angle and the second angle of the cleaning motion; the amplitude of the cleaning motion is the same as that of the adjacent cleaning motion; or the amplitudes of the plurality of cleaning motions are the same.

3. The apparatus of claim 1 or 2, wherein, in the output order: the control assembly generates a driving signal, so that the first angle of the current cleaning motion is not less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not greater than the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a first preset threshold; and / or the control assembly generates a driving signal, so that the first angle of the current cleaning motion is not greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not less than the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a second preset threshold.

4. The apparatus of claim 3, wherein, the control assembly generates a driving signal, so that the first angle of the current cleaning motion is increased by a preset increment value compared with the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is decreased by a preset decrement value compared with the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a first preset threshold; and / or the control assembly generates a driving signal, so that the first angle of the current cleaning motion is decreased by a preset decrement value compared with the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is increased by a preset increment value compared with the second angle of the previous cleaning motion, until the first angle of the cleaning motion reaches a second preset threshold; wherein the increment value of the current cleaning motion is equal to the decrement value.

5. The apparatus of any one of claims 1-4, wherein, the control assembly controls the direction of the current flowing into the actuating assembly to determine the rotation direction of the output shaft; and / or the driving signal is a pulse width modulation signal, the control assembly generates a pulse width modulation signal with a first duty ratio to make the output shaft correspondingly output the first motion, and the control assembly generates a pulse width modulation signal with a second duty ratio to make the output shaft correspondingly output the second motion.

6. The apparatus of claim 5, wherein, the sum of the first duty ratio and the second duty ratio corresponding to the cleaning motion is an output quantity; in the plurality of cleaning motions, the output quantities of at least two cleaning motions are the same; or the output quantities of the plurality of cleaning motions are the same.

7. The apparatus of claim 5, wherein, In output order: The control component generates the pulse width modulation signal with the adjusted first duty cycle and the pulse width modulation signal with the adjusted second duty cycle, so that the first angle of the current cleaning motion is not less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not greater than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, The control component generates the pulse width modulation signal with the adjusted first duty cycle and the pulse width modulation signal with the adjusted second duty cycle, so that the first angle of the current cleaning motion is not greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is not less than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

8. The apparatus of claim 7, wherein, The cleaning motions in the periodic motion have the same output quantity, in output order: The control component generates the pulse width modulation signal with the increased first duty cycle and the pulse width modulation signal with the decreased second duty cycle, so that the first angle of the current cleaning motion is greater than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is less than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, The control component generates the pulse width modulation signal with the decreased first duty cycle and the pulse width modulation signal with the increased second duty cycle, so that the first angle of the current cleaning motion is less than the first angle of the previous cleaning motion, and the second angle of the current cleaning motion is greater than the second angle of the previous cleaning motion, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

9. The apparatus of claim 2, wherein, The control component determines the amplitude, the first angle, and / or the second angle according to user operation, sensing data, and / or historical use data.

10. The apparatus of claim 6, wherein, The control component determines the output quantity, the first duty cycle, and / or the second duty cycle according to user operation, sensing data, and / or historical use data.

11. The apparatus of claim 1, wherein, The frequency of the actuating component is above 100 Hz.

12. The apparatus of claim 11, wherein, The frequency of the actuating component is in the range of 100-300 Hz.

13. The apparatus of claim 1, wherein, The frequency of the actuating component is substantially constant.

14. The apparatus of claim 3, wherein, The first preset threshold is no more than 12 degrees, 16 degrees, or 20 degrees.

15. An oral care device control method, characterized by, Applied to an oral care device, the oral care device comprising: a cleaning portion having at least a cleaning unit; a holding portion connected to the cleaning portion, and an actuating component at least partially accommodated in the holding portion, the actuating component comprising an output shaft engaged with the cleaning portion; a control component; The method comprises: The control component generates a driving signal to drive the output shaft of the actuating component to output a periodic cleaning motion, and thereby drives the cleaning unit; The periodic cleaning motion includes a plurality of cleaning motions, each of which includes a first motion and a second motion; the driving signal is a pulse width modulation signal; the control component generates a pulse width modulation signal with a first duty cycle, so that the output shaft outputs the first motion, and generates a pulse width modulation signal with a second duty cycle, so that the output shaft outputs the second motion, the current input direction of the pulse width modulation signal with the first duty cycle and the pulse width modulation signal with the second duty cycle are different; The first duty cycle of at least one cleaning motion is greater than the first duty cycle of an adjacent cleaning motion, and the second duty cycle is less than the second duty cycle of the adjacent cleaning motion.

16. The method of claim 15, wherein, The sum of the first duty cycle and the second duty cycle corresponding to the cleaning motion is an output quantity; In the plurality of cleaning motions, the output quantities of at least two cleaning motions are the same; or, The output quantities of the plurality of cleaning motions are the same.

17. The method of claim 15, wherein, In the output order: The control component generates a pulse width modulation signal adjusting the first duty cycle and a pulse width modulation signal adjusting the second duty cycle, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, The control component generates a pulse width modulation signal adjusting the first duty cycle and a pulse width modulation signal adjusting the second duty cycle, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

18. The method of claim 17, wherein, The cleaning motions in the periodic motion have the same output quantity; The control component generates a pulse width modulation signal increasing the first duty cycle and a pulse width modulation signal decreasing the second duty cycle, until the first duty cycle of the cleaning motion reaches a third preset threshold; and / or, The control component generates a pulse width modulation signal decreasing the first duty cycle and a pulse width modulation signal increasing the second duty cycle, until the first duty cycle of the cleaning motion reaches a fourth preset threshold.

19. The method of claim 16, wherein, The control component determines the output quantity, the first duty cycle and / or the second duty cycle according to user operation, sensing data and / or historical use data.

20. The method of claim 15, wherein, The frequency of the actuation component is 100 Hz or more.

21. The method of claim 20, wherein, The frequency of the actuation component is in the range of 100-300 Hz.

22. The method of claim 20, wherein, The frequency of the actuation component is substantially constant.

23. An electronic device, comprising: Comprise: One or more processors and a memory for storing one or more programs, wherein when the one or more programs are executed by the one or more processors, the one or more processors implement the control method of the oral care device of any one of claims 15-22.

24. A non-volatile storage medium, comprising: The non-volatile storage medium stores a plurality of instructions, which are suitable for being loaded and executed by the processor to implement the control method of the oral care device of any one of claims 15-22.

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