Electric toothbrush control method and apparatus, electric toothbrush and storage medium

Abstract

The present application relates to the technical field of oral cavity cleaning. Provided are an electric toothbrush control method and apparatus, an electric toothbrush and a storage medium. The electric toothbrush comprises a brush handle, a circuit board, a bidirectional motor and a brush head, the circuit board being connected to the bidirectional motor, the circuit board and the bidirectional motor being both arranged in the brush handle, and the bidirectional motor being connected to the brush head. The control method of the electric toothbrush is implemented by means of the brush handle, the circuit board, the bidirectional motor and the brush head in the electric toothbrush. The method comprises: detecting an oral cavity cleaning instruction; in response to the oral cavity cleaning instruction, determining a corresponding first driving signal and second driving signal; on the basis of the first driving signal and the second driving signal, controlling a cleaning member (namely the brush head) to generate a first motion and a second motion which have different motion directions; and simultaneously outputting the first driving signal and the second driving signal, so as to enable the cleaning member to perform a resultant motion of motions in different directions. The present application allows the cleaning member to perform a resultant motion of motions in two different directions, so as to clean the oral cavity, thereby improving the tooth cleaning capacity of the cleaning member.

Description

Electric toothbrush control method, device, electric toothbrush and storage medium

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on December 29, 2023, with application number 202311872118.9 and application name “Control method, device, electric toothbrush and storage medium for electric toothbrush”; and priority to the Chinese patent application with application number 202323664441.5 and application name “Electric toothbrush”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of oral cleaning technology, and in particular to a control method, device, electric toothbrush and storage medium for an electric toothbrush in the field of oral cleaning technology. Background Art

[0003] Electric toothbrushes use a motor to drive the brush head, scraping it across the teeth to clean them. In related technologies, the motor can generate two types of motion: high-frequency vibration or rotation. However, these two types of motion have limited cleaning capabilities, requiring the user to use a horizontal or vertical brushing technique to achieve a satisfactory cleaning effect.

[0004] Therefore, how to improve the cleaning ability of electric toothbrushes on teeth is a problem that urgently needs to be solved.

[0005] Summary of the Invention

[0006] The present application provides a control method, device, electric toothbrush and storage medium for an electric toothbrush. The electric toothbrush and the control method for the electric toothbrush can enable the cleaning element (i.e., the brush head) to perform a combined movement in two different directions to clean the oral cavity, thereby improving the electric toothbrush's ability to clean teeth.

[0007] In the first aspect, the present application provides an electric toothbrush, which includes a brush handle, a circuit board, a bidirectional motor and a brush head, the circuit board is connected to the bidirectional motor and both the circuit board and the bidirectional motor are arranged in the brush handle, and the bidirectional motor is connected to the brush head; wherein, the circuit board is used to output a first drive signal and a second drive signal; and the bidirectional motor is used to drive the brush head to produce a first movement relative to the brush handle based on the first drive signal; and the bidirectional motor is used to drive the brush head to produce a second movement relative to the brush handle based on the second drive signal; wherein the movement directions of the first movement and the second movement are different; the circuit board simultaneously outputs the first drive signal and the second drive signal to cause the brush head to perform a composite movement of the first movement and the second movement.

[0008] In one possible implementation, the bidirectional motor includes a first drive mechanism and a second drive mechanism; the first drive mechanism and the second drive mechanism are both connected to the brush head; wherein the first drive mechanism is used to drive the brush head to produce a first motion based on a first drive signal; the second drive mechanism is used to drive the brush head to produce a second motion based on a second drive signal.

[0009] Optionally, the first movement also includes reciprocating movement with the length extension direction of the brush head as the axis.

[0010] In one possible implementation, the first drive mechanism is used to drive the brush head to swing back and forth with the length extension direction of the brush head as the axis based on the first drive signal; the second drive mechanism is used to drive the brush head to move back and forth along the length extension direction of the brush head based on the second drive signal.

[0011] In a possible implementation, the first driving mechanism and the second driving mechanism are arranged along an extension direction of the brush handle.

[0012] In one possible implementation, the bidirectional motor also includes a first output shaft and a second output shaft; the first output shaft is different from the second output shaft, the first output shaft is connected to the first drive mechanism, and the second output shaft is connected to the second drive mechanism; the first output shaft and the second output shaft are both connected to the brush head; wherein, the first output shaft is used to drive the brush head to perform a first movement under a first drive signal; and, the second output shaft is used to drive the brush head to perform a second movement under a second drive signal; wherein, the first output shaft is connected to the second output shaft.

[0013] In one possible implementation, the bidirectional motor also includes a third output shaft; the third output shaft is connected to the first drive mechanism and the second drive mechanism respectively; the third output shaft is connected to the brush head; the third output shaft is used to drive the brush head to perform a first movement under a first drive signal; and the third output shaft is used to drive the brush head to perform a second movement under a second drive signal.

[0014] In a possible implementation, the vibration frequency of the first motion is equal to the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

[0015] In a possible implementation, the swing amplitude of the first motion is smaller than or equal to the movement amplitude of the second motion; and / or the duty cycle of the first driving signal is smaller than or equal to the duty cycle of the second driving signal.

[0016] In one possible implementation, there is a preset time difference between the output time of the first drive signal and the output time of the second drive signal; wherein the preset time difference is the sum of N cycle durations and one-quarter cycle durations; or, the preset time difference is the sum of N cycle durations and three-quarter cycle durations; the cycle duration is the duration of a single complete output of the first drive signal or the second drive signal; and N is an integer greater than or equal to 0.

[0017] In one possible implementation, the circuit board is further used to: pause outputting the first drive signal and the second drive signal, and output a single drive signal; wherein the single drive signal is the first drive signal or the second drive signal; pause outputting the single drive signal, and again simultaneously outputting the first drive signal and the second drive signal.

[0018] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

[0019] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion, which includes: the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion.

[0020] In one possible implementation, the electric toothbrush further includes a position detection unit, which is connected to the circuit board; wherein the position detection unit is used to detect the cleaning position of the brush head in the oral cavity and send the cleaning position to the circuit board.

[0021] In one possible implementation, if the cleaning position is the tooth side surface, the circuit board is also used to perform at least one of the following: adjusting the swing amplitude of the first movement to be greater than the movement amplitude of the second movement; adjusting the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal; adjusting the vibration frequency of the first movement to be greater than the vibration frequency of the second movement; adjusting the driving frequency of the first drive signal to be greater than the driving frequency of the second drive signal.

[0022] In one possible implementation, if the cleaning position is the occlusal surface, the circuit board is also used to perform at least one of the following: adjusting the swing amplitude of the first movement to be smaller than the movement amplitude of the second movement; adjusting the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal; adjusting the vibration frequency of the first movement to be smaller than the vibration frequency of the second movement; adjusting the driving frequency of the first drive signal to be smaller than the driving frequency of the second drive signal.

[0023] In one possible implementation, the circuit board is also used to perform at least one of the following: adjusting the duty cycle of the first drive signal corresponding to the tooth side surface to be greater than the duty cycle of the first drive signal corresponding to the occlusal surface; adjusting the driving frequency of the second drive signal corresponding to the tooth side surface to be less than the driving frequency of the second drive signal corresponding to the occlusal surface.

[0024] In a second aspect, the present application provides a method for controlling an electric toothbrush, the method comprising:

[0025] An oral cleaning instruction is detected; in response to the oral cleaning instruction, a corresponding first drive signal and a second drive signal are determined; based on the first drive signal, a cleaning member of the electric toothbrush is controlled to generate a first movement, and based on the second drive signal, the cleaning member is controlled to generate a second movement; wherein the first movement and the second movement have different movement directions; and the first drive signal and the second drive signal are output simultaneously to cause the cleaning member to perform a combined movement of the first movement and the second movement.

[0026] In a possible implementation, the first motion includes reciprocating swinging with the length extension direction of the cleaning member as the axis; the second motion includes reciprocating movement along the length extension direction of the cleaning member.

[0027] Optionally, the first movement further comprises a reciprocating movement with the length extension direction of the cleaning member as the axis.

[0028] In a possible implementation, the vibration frequency of the first motion is equal to the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

[0029] In a possible implementation, the swing amplitude of the first motion is smaller than or equal to the movement amplitude of the second motion; and / or the duty cycle of the first driving signal is smaller than or equal to the duty cycle of the second driving signal.

[0030] In one possible implementation, simultaneously outputting the first drive signal and the second drive signal includes: after outputting the first drive signal for a first duration, simultaneously outputting the first drive signal and the second drive signal; wherein the first duration is the sum of N cycle durations and a quarter cycle duration; or, the first duration is the sum of N cycle durations and three-quarter cycle durations; N is an integer greater than or equal to zero, and the cycle duration is the duration of a single complete output of the first drive signal or the second drive signal.

[0031] In one possible implementation, the method further includes: pausing the output of the first drive signal and the second drive signal, and outputting a single drive signal; wherein the single drive signal is the first drive signal or the second drive signal; pausing the output of the single drive signal, and again simultaneously outputting the first drive signal and the second drive signal.

[0032] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

[0033] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion, which includes: the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion.

[0034] Optionally, the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal, which includes: the driving frequency of the first driving signal is greater than or equal to twice the driving frequency of the second driving signal.

[0035] In one possible implementation, the electric toothbrush includes a position detection unit, which is used to detect the cleaning position of the cleaning member in the oral cavity; and simultaneously outputs a first drive signal and a second drive signal, including: adjusting the first drive signal and / or the second drive signal corresponding to the cleaning position according to the cleaning position detected by the position detection unit.

[0036] In one possible implementation, according to the cleaning position detected by the position detection unit, adjusting the first drive signal and / or the second drive signal corresponding to the cleaning position includes at least one of the following: if the cleaning position is detected to be the tooth side surface, adjusting the swing amplitude of the first motion to be greater than the movement amplitude of the second motion; if the cleaning position is detected to be the tooth side surface, adjusting the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal; if the cleaning position is detected to be the tooth side surface, adjusting the vibration frequency of the first motion to be greater than the vibration frequency of the second motion; if the cleaning position is detected to be the tooth side surface, adjusting the driving frequency of the first drive signal to be greater than the driving frequency of the second drive signal.

[0037] In one possible implementation, based on the cleaning position detected by the position detection unit, adjusting the first drive signal and / or the second drive signal corresponding to the cleaning position includes at least one of the following: if the cleaning position is detected to be the occlusal surface, adjusting the swing amplitude of the first movement to be smaller than the movement amplitude of the second movement; if the cleaning position is detected to be the occlusal surface, adjusting the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal; if the cleaning position is detected to be the occlusal surface, adjusting the vibration frequency of the first movement to be smaller than the vibration frequency of the second movement; if the cleaning position is detected to be the occlusal surface, adjusting the driving frequency of the first drive signal to be smaller than the driving frequency of the second drive signal.

[0038] In one possible implementation, the cleaning position includes the tooth side surface and the occlusal surface. According to the cleaning position detected by the position detection unit, the first drive signal and / or the second drive signal are adjusted corresponding to the cleaning position, including at least one of the following: the duty cycle of the first drive signal corresponding to the tooth side surface is greater than the duty cycle of the first drive signal corresponding to the occlusal surface; the driving frequency of the second drive signal corresponding to the tooth side surface is less than the driving frequency of the second drive signal corresponding to the occlusal surface.

[0039] In one possible implementation, the electric toothbrush also includes a bidirectional motor; based on a first drive signal, the cleaning element of the electric toothbrush is controlled to produce a first movement, and based on a second drive signal, the cleaning element is controlled to produce a second movement, including: based on the first drive signal, the bidirectional motor is controlled to drive the cleaning element to produce a first movement, and based on the second drive signal, the bidirectional motor is controlled to drive the cleaning element to produce a second movement.

[0040] In a third aspect, the present application provides a bidirectional motor for use in an electric toothbrush, the electric toothbrush comprising a cleaning member; the bidirectional motor comprises a first drive mechanism and a second drive mechanism, both of which are connected to the cleaning member, wherein the first drive mechanism is used to drive the cleaning member to produce a first motion based on a first drive signal; the second drive mechanism is used to drive the cleaning member to produce a second motion based on a second drive signal; wherein the bidirectional motor operates based on the method in the first aspect or any possible implementation of the first aspect.

[0041] In one possible implementation, the first drive mechanism is used to drive the cleaning member to swing back and forth with the length extension direction of the cleaning member as the axis based on the first drive signal; the second drive mechanism is used to drive the cleaning member to move back and forth along the length extension direction of the cleaning member based on the second drive signal.

[0042] In a fourth aspect, the present application provides a control device for an electric toothbrush, the control device for the electric toothbrush comprising:

[0043] A detection module, configured to detect an oral cleaning instruction;

[0044] a control module configured to determine a corresponding first drive signal and a second drive signal in response to an oral cleaning instruction; control a cleaning member of the electric toothbrush to generate a first motion based on the first drive signal, and control the cleaning member to generate a second motion based on the second drive signal; wherein the first motion and the second motion have different directions of motion;

[0045] The output module is used to simultaneously output a first driving signal and a second driving signal to enable the cleaning element to perform a combined motion of the first motion and the second motion.

[0046] In a fifth aspect, the present application provides an electric toothbrush comprising a memory and a processor. The memory is used to store executable program code, and the processor is used to call and run the executable program code from the memory, so that the electric toothbrush executes the method of the first aspect or any possible implementation of the first aspect.

[0047] In a sixth aspect, the present application provides a computer program product, which includes: a computer program code, which, when executed on a computer, enables the computer to execute the method in the first aspect or any possible implementation of the first aspect.

[0048] In the seventh aspect, the present application provides a computer-readable storage medium, which stores a computer program code. When the computer program code runs on a computer, the computer executes the method in the first aspect or any possible implementation of the first aspect.

[0049] The electric toothbrush provided in the embodiment of the present application includes a brush handle, a circuit board, a bidirectional motor and a brush head, the circuit board is connected to the bidirectional motor, and the circuit board and the bidirectional motor are both arranged in the brush handle, and the bidirectional motor is connected to the brush head; wherein, the circuit board is used to output a first drive signal and a second drive signal; and the bidirectional motor is used to drive the brush head to generate a first movement based on the first drive signal; and the bidirectional motor is used to drive the brush head to generate a first movement relative to the brush handle based on the first drive signal; and the bidirectional motor is used to drive the brush head to generate a second movement relative to the brush handle based on the second drive signal; wherein the movement directions of the first movement and the second movement are different; the circuit board simultaneously outputs the first drive signal and the second drive signal to cause the brush head to perform a composite movement of the first movement and the second movement. Since the circuit board outputs the first drive signal and the second drive signal at the same time, the bidirectional motor can drive the brush head to produce the first movement based on the first drive signal, and can also drive the brush head to produce the second movement based on the second drive signal. That is, the bidirectional motor drives the brush head to move in two different directions (i.e., the first movement and the second movement), thereby realizing the combined movement of the brush head in two different directions. When the brush head is used for oral cleaning, it can apply a peeling force to the soft plaque or dental plaque on the surface of the teeth in multiple directions, making the soft plaque or dental plaque on the surface of the teeth easier to clean, improving the cleaning ability of the electric toothbrush on the teeth, and avoiding the problem of poor oral cleaning effect caused by a single movement of the brush head for cleaning the oral cavity. Therefore, when the brush head performs a combined movement in two different directions for cleaning the oral cavity, the cleaning ability of the electric toothbrush on the teeth can be improved.

[0050] In an embodiment of the present application, a control method for an electric toothbrush is provided, wherein an oral cleaning instruction is detected; in response to the oral cleaning instruction, a corresponding first drive signal and a second drive signal are determined; based on the first drive signal, a cleaning element of the electric toothbrush is controlled to generate a first motion, and based on the second drive signal, the cleaning element is controlled to generate a second motion; wherein the first motion and the second motion have different motion directions; and the first drive signal and the second drive signal are simultaneously output to cause the cleaning element to perform a combined motion of the first motion and the second motion. Since the two drive signals are simultaneously output to cause the cleaning element to simultaneously output motions in two different directions (i.e., the first motion and the second motion), thereby achieving the combined motion of the cleaning element in the two different directions, when the cleaning element cleans the oral cavity, it can apply a multi-directional peeling force to soft plaque or dental plaque on the tooth surface, making the soft plaque or dental plaque on the tooth surface easier to clean, thereby improving the cleaning ability of the electric toothbrush on the teeth, and avoiding the problem of poor oral cleaning effect caused by the cleaning element performing a single motion to clean the oral cavity; therefore, when the cleaning element performs the combined motion in the two different directions to clean the oral cavity, the cleaning ability of the electric toothbrush on the teeth can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] FIG1 is a schematic structural diagram of an electric toothbrush provided in an embodiment of the present application;

[0052] FIG2 is a schematic diagram of the motion trajectory of an acoustic wave type and rotary electric toothbrush on teeth provided by an embodiment of the present application;

[0053] FIG3 is a schematic structural diagram of another electric toothbrush provided in an embodiment of the present application;

[0054] FIG4 is a schematic diagram of the corresponding motion directions of the first motion and the second motion provided in an embodiment of the present application;

[0055] FIG5 is a system schematic diagram of an electric toothbrush provided in an embodiment of the present application;

[0056] FIG6 is a schematic diagram of a projection curve of an electric toothbrush provided in an embodiment of the present application when it moves on teeth;

[0057] FIG7 is a schematic diagram of a bidirectional motor drive mechanism and an output shaft provided in an embodiment of the present application;

[0058] FIG8 is a system diagram of another electric toothbrush provided in an embodiment of the present application;

[0059] FIG9 is a system schematic diagram of another electric toothbrush provided in an embodiment of the present application;

[0060] FIG10 is a flow chart of a method for controlling an electric toothbrush according to an embodiment of the present application;

[0061] FIG11 is a flow chart of another method for controlling an electric toothbrush provided in an embodiment of the present application;

[0062] FIG12 is a schematic structural diagram of a control device for an electric toothbrush provided in an embodiment of the present application;

[0063] FIG13 is a schematic structural diagram of an electric toothbrush provided in an embodiment of the present application. DETAILED DESCRIPTION

[0064] The following will clearly and thoroughly describe the technical solutions in this application in conjunction with the accompanying drawings. In the description of the embodiments of this application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "multiple" means two or more than two.

[0065] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to imply or suggest relative importance or implicitly indicate the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0066] FIG1 is a schematic structural diagram of an electric toothbrush provided in an embodiment of the present application.

[0067] For example, as shown in FIG1 , FIG1 includes an electric toothbrush 100, which includes at least a control button 110 and a brush head (also referred to as a “cleaning member”) 120. The electric toothbrush 100 is a device for oral cleaning, and may also be a dental cleaning device.

[0068] The control button 110 can be used to receive oral cleaning instructions triggered by the user and transmit the oral cleaning instructions to a circuit board in the electric toothbrush (which may be referred to as a "control unit"). Upon receiving the oral cleaning instructions, the circuit board controls the swing and / or movement of the brush head 120 according to the oral cleaning instructions. The control unit can also be other devices capable of controlling the swing and / or movement of the brush head 120 in response to oral cleaning instructions, and is not limited to a circuit board.

[0069] The brush head 120 can swing and / or move according to the control of the circuit board, thereby breaking up the toothpaste placed on the brush head 120, breaking up the toothpaste into fine foam, and cleaning the teeth. Optionally, the brush head 120 can include but is not limited to the brush head and bristles of an electric toothbrush.

[0070] Referring to Figure 1, the circuit board can be set in the accommodating cavity of the handle housing of the electric toothbrush 100. The circuit board can be a microcontroller unit (MCU), also known as a single-chip microcomputer or single-chip microcomputer. It is a chip-level computer that appropriately reduces the frequency and specifications of the central processing unit (CPU) and integrates peripheral interfaces such as memory, counter, USB, A / D conversion, UART, PLC and DMA, and even LCD driver circuits on a single chip to form a chip-level computer, which can perform different combination controls for different application scenarios.

[0071] In the related art, electric toothbrushes are mainly divided into rotary and sonic types. Rotary toothbrushes mainly clean teeth by scraping the teeth with a rotating brush head, while sonic toothbrushes mainly clean teeth through the high-frequency vibration of the brush head. Referring to Figure 2, the corresponding motion trajectory of a sonic electric toothbrush when cleaning teeth is projected onto the teeth as a straight line, as shown in Figure 2 (a). The corresponding motion trajectory of a rotary electric toothbrush when cleaning teeth is projected onto the teeth as a circle, as shown in Figure 2 (b).

[0072] For example, because sonic electric toothbrushes clean teeth horizontally, i.e., their movement is relatively simple, their cleaning ability is limited. In particular, they have poor cleaning effects on the gum line, corners, pits, and fissures, failing to meet users' tooth cleaning needs. Furthermore, rotary electric toothbrushes, which use mechanical transmission to generate rotational motion at a low frequency, have less cleaning power against soft plaque or dental plaque, resulting in poor cleaning effects on soft plaque or dental plaque.

[0073] In order to solve the problem that electric toothbrushes have a poor cleaning effect on teeth, the present application proposes a control method and device for an electric toothbrush, an electric toothbrush and a storage medium.

[0074] The electric toothbrush provided in the embodiment of the present application is described in detail below with reference to Figures 3 to 9.

[0075] FIG3 is a schematic structural diagram of another electric toothbrush provided in an embodiment of the present application.

[0076] For example, as shown in FIG3 , the electric toothbrush in FIG3 includes at least: a brush handle 130, a circuit board 111, a bidirectional motor 112, and a brush head 120. The circuit board 111 is connected to the bidirectional motor 112, which is connected to the brush head 120. Both the circuit board 111 and the bidirectional motor 112 are located in the brush handle 130.

[0077] The circuit board 111 can be configured to output two drive signals, for example, a first drive signal and a second drive signal, based on a received oral cleaning instruction triggered by a user. The control button 110 shown in FIG1 can be connected to the circuit board 111 to transmit the oral cleaning instruction triggered by the user to the circuit board 111.

[0078] Optionally, the oral cleaning instruction can be triggered by the user through the control button of the electric toothbrush, and the triggering methods include but are not limited to touch, click, and voice. In addition, the oral cleaning instruction can carry oral cleaning parameters required by the electric toothbrush for oral cleaning, including but not limited to oral cleaning mode and oral cleaning intensity.

[0079] For example, when the user needs to clean the oral cavity, the user can click the control button of the electric toothbrush to trigger the oral cleaning instruction. Alternatively, the user can send an oral cleaning instruction to the electric toothbrush through a smart terminal connected to the electric toothbrush, so that the circuit board 111 can receive the oral cleaning instruction for oral cleaning.

[0080] The bidirectional motor 112 can be used to drive a first motion relative to the brush head 120 according to a first drive signal output by the circuit board 111; and the bidirectional motor 112 can also be used to drive a second motion relative to the brush head 120 according to a second drive signal output by the circuit board 111. The first motion and the second motion have different directions of motion.

[0081] Optionally, the first movement may represent the reciprocating swing of the brush head 120 with the length extension direction of the brush head 120 as the axis (such as the reciprocating swing as shown in (a) in Figure 4), that is, circular swing, which can enable the brush head 120 to form a longitudinal scraping force on the teeth during the cleaning process, thereby peeling off soft plaque or dental plaque on the surface of the teeth.

[0082] Optionally, the second movement may represent reciprocating movement along the length extension direction of the brush head 120 (such as the reciprocating movement shown in (a) of Figure 4), that is, linear vibration, which can enable the brush head 120 to form a lateral scraping force on the teeth during the cleaning process, thereby peeling off soft plaque or dental plaque on the surface of the teeth.

[0083] Furthermore, the combined motion of the first motion and the second motion is a combined motion including circular swing and linear vibration (i.e., circular motion), as shown in (a) of FIG4 . Circular motion replaces the brushing method of manually using an ordinary toothbrush (non-electric toothbrush) by the user, which moves in circles while brushing. That is, the combined motion performed by the brush head 120 achieves the same brushing method as the circular brushing method, so that when the brush head cleans the teeth through the combined motion, it can clean the teeth together through circular swing and linear vibration, that is, it cleans the teeth horizontally and vertically at the same time, making it easier to peel off the soft plaque or dental plaque on the surface of the teeth under multi-directional scraping. In addition, the mechanical motion of the brush head 120 can help the user to better clean the oral cavity, which can avoid the problem of the oral cleaning effect being affected by individual user operation differences, so that any user can use the electric toothbrush to achieve a more effective cleaning of the teeth by the circular brushing method.

[0084] Alternatively, the first motion may also represent a reciprocating movement of the brush head 120 with the length extension direction of the brush head 120 as an axis (such as a linear movement as shown in (b) in FIG. 4 ).

[0085] Exemplarily, a correspondence between oral cleaning parameters and the first drive signal and the second drive signal can be pre-stored in the electric toothbrush, so that after receiving the oral cleaning instruction, the circuit board can respond to the oral cleaning instruction and query the corresponding first drive signal and second drive signal from the correspondence according to the oral cleaning parameters carried by the oral cleaning instruction, so as to drive the brush head to produce reciprocating swings with its own length extension direction as the axis based on the first drive signal; and drive the brush head to produce reciprocating movements along its own length extension direction based on the second drive signal.

[0086] Alternatively, in response to an oral cleaning instruction, and according to the oral cleaning parameters carried by the oral cleaning instruction, the corresponding first drive signal and the second drive signal are queried from the corresponding relationship; and based on the first drive signal, the brush head is driven to produce reciprocating movement with its own length extension direction as the axis, and based on the second drive signal, the brush head is driven to produce reciprocating movement along its own length extension direction.

[0087] FIG5 is a system diagram of an electric toothbrush provided in an embodiment of the present application.

[0088] For example, as shown in FIG5(a), FIG5(a) includes a circuit board, a bidirectional motor, and a brush head. The circuit board can be used to output a first drive signal to the bidirectional motor based on an oral cleaning instruction triggered by a user, and the bidirectional motor can be used to drive the brush head to generate a first motion based on the received first drive signal.

[0089] For example, when the circuit board receives an oral cleaning instruction triggered by the user, it can output a first drive signal to the bidirectional motor to drive the bidirectional motor to drive the brush head to produce a first movement (as shown in (a) in Figure 5). When the bidirectional motor drives the brush head to produce the first movement, the brush head can apply a longitudinal peeling force to the soft plaque or dental plaque on the surface of the teeth, thereby longitudinally cleaning the soft plaque or dental plaque on the surface of the teeth.

[0090] Exemplarily, the circuit board shown in (b) in Figure 5 can be used to output a second drive signal to the bidirectional motor according to an oral cleaning instruction triggered by the user; the bidirectional motor can be used to drive the brush head to produce a second movement direction different from the first movement direction according to the received second drive signal.

[0091] For example, when the circuit board receives an oral cleaning instruction triggered by the user, it can also output a second drive signal to the bidirectional motor to drive the bidirectional motor to drive the brush head to produce a second motion (as shown in (b) in Figure 5). When the bidirectional motor drives the brush head to produce the second motion, the brush head can apply a lateral peeling force to the soft plaque or dental plaque on the surface of the teeth, thereby cleaning the soft plaque or dental plaque on the surface of the teeth laterally.

[0092] It should be noted that the embodiments of the present application do not limit the multi-directional motor to a bidirectional motor, but can also be a three-directional motor, etc. The type of the multi-directional motor needs to be determined according to the requirements of the brush head movement direction, and the embodiments of the present application do not limit this.

[0093] Exemplarily, when the circuit board outputs the first drive signal and the second drive signal at the same time, the bidirectional motor can drive the brush head to produce the first motion based on the first drive signal, and also drive the brush head to produce the second motion based on the second drive signal, so that the brush head can perform a composite motion of the first motion and the second motion (as shown in (a) in Figure 4, or (b) in Figure 4), that is, a circular motion to clean the oral cavity.

[0094] As shown in (c) in Figure 5, when the circuit board receives the oral cleaning instruction triggered by the user, it can simultaneously output the first drive signal and the second drive signal to the bidirectional motor, so that the bidirectional motor simultaneously drives the brush head to generate the first motion and the second motion with different motion directions, so that the brush head performs a synthetic motion of high-frequency vibration, thereby scraping the teeth in multiple directions under high-frequency vibration, making it easier to clean the soft plaque and dental plaque on the teeth, thereby improving the cleaning force of the brush head; and because the brush head cleans the teeth through circular motion, it can smoothly scrape the tooth surface or the position where the teeth and gums meet, thereby avoiding damage to the gums due to straight scraping, and can also massage the gums to avoid gum atrophy.

[0095] Exemplarily, the time when the circuit board outputs the first drive signal and the time when it outputs the second drive signal, and / or the duty cycle of the first drive signal and the duty cycle of the second drive signal, and / or the vibration frequency of the first movement and the vibration frequency of the second movement, and / or the driving frequency of the first movement and the driving frequency of the second movement, and / or the swing amplitude of the first movement and the movement amplitude of the second movement may all affect the corresponding projection of the brush head on the teeth when it performs a circular motion on the teeth, so that the curve shape of the corresponding projection of the brush head on the teeth when it performs a circular motion on the teeth may include but is not limited to the shape shown in Figure 6, for example, the circle shown in (a) of Figure 6, the ellipse shown in (b) of Figure 6, the spring-shaped curve shown in (c) of Figure 6, the sinusoidal curve shown in (d) of Figure 6, the lying "8"-shaped curve shown in (e) of Figure 6 and the ellipse shown in (f) of Figure 6.

[0096] It should be noted that the projection curves of the electric toothbrush moving on the teeth shown in FIG6 are all projections of a single movement of the brush head.

[0097] Optionally, when a user uses an electric toothbrush to clean their oral cavity, the movement of the electric toothbrush may also affect the projection curve of the electric toothbrush as it moves on the teeth. For example, if a user moves the electric toothbrush laterally while brushing their teeth, the projection of the trajectory of the combined motion of the brush head on the teeth may change, including but not limited to changing from a circular shape as shown in FIG6 (a) to a spring-shaped curve as shown in FIG6 (c); or, changing from an elliptical shape as shown in FIG6 (b) to a spring-shaped curve as shown in FIG6 (c); or, changing from an elliptical shape as shown in FIG6 (f) to a spring-shaped curve as shown in FIG6 (c).

[0098] In the electric toothbrush shown in FIG3 , since the circuit board simultaneously outputs the first drive signal and the second drive signal, the bidirectional motor can drive the brush head to generate the first motion based on the first drive signal, and can also drive the brush head to generate the second motion based on the second drive signal, that is, the bidirectional motor drives the brush head to perform two different directions of motion (i.e., the first motion and the second motion), thereby realizing the brush head to perform a composite motion in two different directions. When the brush head is used for oral cleaning, a peeling force can be applied to the soft plaque or dental plaque on the tooth surface in multiple directions, making the soft plaque or dental plaque on the tooth surface easier to clean, improving the electric toothbrush's ability to clean teeth, and avoiding the problem of poor oral cleaning effect caused by a single movement of the brush head for cleaning the oral cavity. Therefore, when the brush head performs a composite motion in two different directions for cleaning the oral cavity, the electric toothbrush's ability to clean teeth can be improved.

[0099] Optionally, the electric toothbrush may also be equipped with, but not limited to, one or more indicator lights, buttons, display screens, speakers, motors, and the like.

[0100] Exemplarily, the bidirectional motor 112 may include multiple drive mechanisms and output shafts. For example, the first drive mechanism 113 and the second drive mechanism 114, and the output shaft 115 shown in (a) of Figure 7. The first drive mechanism 113 and the second drive mechanism 114 share the output shaft 115 (which may be referred to as the "third output shaft"), and the output shaft 115 is an integrated structure. The output shaft 115 is connected to the first drive mechanism 113 and the second drive mechanism 114, respectively, and the output shaft 115 is connected to the brush head 120, so that the first drive mechanism 113 and the second drive mechanism 114 are both connected to the brush head 120.

[0101] Optionally, the connection relationship shown in (a) in Figure 7 can be more clearly understood through (b) in Figure 7, where the circuit board 110 is connected to the bidirectional motor 130, and the bidirectional motor 130 includes a first drive mechanism 113 and a second drive mechanism 114, and the first drive mechanism 113 and the second drive mechanism 114 are connected to the output shaft 115.

[0102] The first driving mechanism 113 can be used to drive the brush head 120 to generate a first motion based on a first driving signal.

[0103] The second driving mechanism 114 can be used to drive the brush head 120 to generate a second motion based on a second driving signal.

[0104] Exemplarily, when the circuit board 111 outputs the first driving signal, the first driving mechanism 113 can drive the brush head 120 to generate the first motion based on the first driving signal.

[0105] Exemplarily, when the circuit board 111 outputs the second driving signal, the second driving mechanism 114 can drive the brush head 120 to generate a second motion different from the first motion direction based on the second driving signal, so that the brush head can perform cleaning motions in different directions.

[0106] It should be noted that the shapes of the first driving mechanism 113 and the second driving mechanism 114 shown in FIG. 7 are merely exemplary and may also be rectangular or irregular in shape, which is not limited in the embodiment of the present application.

[0107] It should also be noted that the embodiment of the present application does not limit the number of driving mechanisms in the bidirectional motor. The number of driving mechanisms can be determined based on the requirements for the movement direction of the brush head. For example, the number of driving mechanisms in the bidirectional motor can include but is not limited to 1, 3 or 4.

[0108] The output shaft 115 can be used to drive the brush head 120 to perform a first motion under a first driving signal.

[0109] The output shaft 115 can also be used to drive the brush head 120 to perform a second movement under a second driving signal.

[0110] Exemplarily, the circuit board 111 can output a first drive signal to the first drive mechanism 113. The first drive mechanism 113 drives the output shaft 115 to perform a first movement based on the first drive signal, thereby driving the brush head 120 to perform a first movement, so that the brush head forms a longitudinal scraping force on the teeth during the cleaning process, thereby peeling off soft plaque or dental plaque on the surface of the teeth.

[0111] In addition, the circuit board 111 can also output a second driving signal to the second driving mechanism 114. The second driving mechanism 114 drives the output shaft 115 to perform a second movement based on the second driving signal to drive the brush head 120 to perform a second movement, so that the brush head forms a transverse scraping force during the cleaning process of the teeth, which is used to peel off soft plaque or dental plaque on the surface of the teeth.

[0112] Exemplarily, when the circuit board 111 simultaneously outputs a first drive signal to the first drive mechanism 113 and a second drive signal to the second drive mechanism 114, the first drive mechanism 113 drives the output shaft 115 to perform a composite motion of the first motion and the second motion based on the first drive signal, and the second drive mechanism 114 drives the output shaft 115 to perform a composite motion of the first motion and the second motion based on the second drive signal, thereby driving the brush head 120 to perform a composite motion, so as to apply a peeling force to the soft plaque or dental plaque on the surface of the teeth in multiple directions, so that the soft plaque or dental plaque on the surface of the teeth is easier to clean, thereby improving the cleaning ability of the electric toothbrush on the teeth.

[0113] Alternatively, the output shaft 115 may be a split structure, i.e., the output shaft 115 may be divided into multiple output shafts, for example, a first output shaft and a second output shaft, where the first output shaft is different from the second output shaft. The first drive mechanism 113 and the second drive mechanism 114 each have a corresponding output shaft. For example, the first drive mechanism 113 corresponds to the first output shaft, and the second drive mechanism 114 corresponds to the second output shaft.

[0114] Furthermore, the first output shaft is connected to the first driving mechanism 113 , the second output shaft is connected to the second driving mechanism 114 , and the first output shaft and the second output shaft can be connected via a connecting member; the first output shaft and the second output shaft are both connected to the brush head 120 .

[0115] The first output shaft can be used to drive the brush head 120 to perform a first motion under a first driving signal.

[0116] The second output shaft can be used to drive the brush head 120 to perform a second movement under a second driving signal.

[0117] Exemplarily, the circuit board 111 can output a first drive signal to the first drive mechanism 113. The first drive mechanism 113 drives the first output shaft to perform a first movement based on the first drive signal, thereby driving the brush head 120 to perform a first movement, so that the brush head forms a longitudinal scraping force on the teeth during the cleaning process, thereby peeling off soft plaque or dental plaque on the surface of the teeth.

[0118] In addition, the circuit board 111 can also output a second drive signal to the second drive mechanism 114. The second drive mechanism 114 drives the second output shaft to perform a second movement based on the second drive signal to drive the brush head 120 to perform a second movement, so that the brush head forms a transverse scraping force during the cleaning process of the teeth, which is used to peel off soft plaque or dental plaque on the surface of the teeth.

[0119] Exemplarily, when the circuit board 111 simultaneously outputs a first drive signal to the first drive mechanism 113 and a second drive signal to the second drive mechanism 114, the first drive mechanism 113 drives the first output shaft to perform a first movement based on the first drive signal, while the second drive mechanism 114 drives the second output shaft to perform a second movement based on the second drive signal, thereby driving the brush head 120 to perform a combined movement of the first movement and the second movement, so as to apply a peeling force to the soft plaque or dental plaque on the surface of the teeth in multiple directions, so that the soft plaque or dental plaque on the surface of the teeth is easier to clean, thereby improving the cleaning ability of the electric toothbrush on the teeth.

[0120] Optionally, the number of the multiple output shafts in the bidirectional motor 112 is the same as the number of the driving mechanisms in the bidirectional motor 112 .

[0121] In one possible implementation, the first drive mechanism 113 can be used to drive the brush head 120 to swing back and forth along the length of the brush head 120 based on a first drive signal; or the first drive mechanism 113 can be used to drive the brush head 120 to move back and forth along the length of the brush head 120 based on a first drive signal. Furthermore, the second drive mechanism 114 can be used to drive the brush head 120 to move back and forth along the length of the brush head 120 based on a second drive signal.

[0122] Exemplarily, the circuit board 111 can output a driving signal corresponding to the first driving mechanism 113 (which can be referred to as the "first driving signal") to the first driving mechanism 113, and drive the brush head 120 to generate a first motion through the bidirectional motor 112, that is, drive the brush head 120 to swing back and forth with the length extension direction of the brush head 120 as the axis, so that the brush head forms a longitudinal scraping force on the teeth during the cleaning process, thereby peeling off soft plaque or dental plaque on the surface of the teeth.

[0123] In addition, the circuit board 111 can also output a driving signal corresponding to the second driving mechanism 114 (which can be called a "second driving signal") to the second driving mechanism 114, and drive the brush head 120 to generate a second motion through the bidirectional motor 112, that is, drive the brush head 120 to move back and forth along the length extension direction of the brush head 120, so that the brush head forms a horizontal scraping force during the cleaning process of the teeth, which is used to peel off soft plaque or dental plaque on the surface of the teeth.

[0124] Alternatively, the circuit board 111 may also output a driving signal corresponding to the first driving mechanism 113 (which may be referred to as a "first driving signal") to the first driving mechanism 113, and drive the brush head 120 to move back and forth along the length extension direction of the brush head 120 through the bidirectional motor.

[0125] Optionally, the first driving mechanism 113 and the second driving mechanism 114 may work simultaneously or individually.

[0126] For example, the circuit board 111 can simultaneously output a first drive signal to the first drive mechanism 113 and a second drive signal to the second drive mechanism 114, so that the first drive mechanism 113 and the second drive mechanism 114 operate simultaneously, thereby driving the brush head 120 to generate a composite motion of the first motion and the second motion, and the corresponding projection of the composite motion on the teeth is circular, that is, the composite motion can be an arc motion. Because the circular motion of the brush head generated by signal transmission makes the movement frequency of the brush head much greater than the movement frequency of the rotational motion generated by the mechanical transmission of the brush head, the cleaning force of the brush head can be improved, making it easier to clean soft plaque and dental plaque on the teeth when the brush head is scraped in multiple directions under high-frequency vibration; and because the brush head can smoothly scrape the tooth surface or the area where the teeth meet the gums when cleaning the teeth through the circular motion, it can avoid damage to the gums caused by straight scraping, and can also massage the gums to prevent gum recession.

[0127] For example, the circuit board 111 may alternately output single motions and combined motions; for example, the circuit board 111 may output a first drive signal to the first drive mechanism 113 alone, and after the output of the first drive signal is completed, the circuit board 111 may simultaneously output the first drive signal to the first drive mechanism 113 and the second drive signal to the second drive mechanism 114. Alternatively, the circuit board 111 may output a second drive signal to the second drive mechanism 114 alone, and after the output of the second drive signal is completed, the circuit board 111 may simultaneously output the first drive signal to the first drive mechanism 113 and the second drive signal to the second drive mechanism 114.

[0128] Optionally, the circuit board 111 can also output the first movement and the second movement alternately; for example, the first drive signal is output to the first drive mechanism 113 alone, and after the output of the first drive signal is completed, the second drive signal is output to the second drive mechanism 114 alone; after the output of the second drive signal is completed, the first drive signal is output to the first drive mechanism 113 alone.

[0129] Optionally, the circuit board 111 can also output a first drive signal to the first drive mechanism 113 alone, so that the brush head 120 can only generate a first movement; and after the output of the first drive signal is completed, the circuit board 111 can output a second drive signal to the second drive mechanism 114 alone, so that the brush head 120 can only generate a second movement.

[0130] It should be noted that the single motion can be the first motion or the second motion. Furthermore, the timing of the circuit board 111 outputting the first drive signal and the second drive signal independently is not fixed. That is, the circuit board 111 can output the first drive signal first and then the second drive signal, or the circuit board 111 can output the second drive signal first and then the first drive signal. This is not limited in the present embodiment.

[0131] In a possible implementation, the first drive mechanism and the second drive mechanism in the handle of the electric toothbrush may be arranged along the extension direction of the handle.

[0132] For example, as shown in FIG7 , the brush handle 130 may include a circuit board 111 and a bidirectional motor 112. Since the first drive mechanism 113 and the second drive mechanism 114 are disposed within the bidirectional motor 112, the first drive mechanism 113 and the second drive mechanism 114 are also contained within the brush handle 130. Furthermore, the first drive mechanism 113 and the second drive mechanism 114 may be disposed along the extension direction of the brush handle 130 as shown in FIG7 . This ensures that the first drive mechanism 113 and the second drive mechanism 114 do not affect each other when driving the brush head 120 to move, thereby ensuring that the brush head can perform a combined motion.

[0133] For example, since the vibration frequencies of the brush head in different directions may also affect the cleaning effect of the teeth, the vibration frequencies of the first movement and the second movement can be set.

[0134] Optionally, the vibration frequency of the first motion and the vibration frequency of the second motion can be set to the same vibration frequency. When the vibration frequency of the first motion is equal to the vibration frequency of the second motion, the projection of the trajectory of the combined motion of the brush head on the teeth can be made more regular and closer to a circle, such as the circle shown in (a) of Figure 6, thereby improving the brush head's ability to clean soft plaque or dental plaque on the tooth surface and providing a deeper cleaning of the teeth.

[0135] Optionally, the vibration frequency of the first motion and the vibration frequency of the second motion can be set to different vibration frequencies; for example, the vibration frequency of the first motion is greater than the vibration frequency of the second motion; when the vibration frequency of the first motion is greater than the vibration frequency of the second motion, the projection of the trajectory of the synthetic motion of the brush head on the teeth can present a spring-shaped curve as shown in (c) in Figure 6, or a sinusoidal-shaped curve as shown in (d) in Figure 6, that is, the motion state of the brush head is shaking and moving, which is equivalent to the brushing technique of moving and shaking up and down when the user manually brushes his teeth, and because the vibration frequency of the first motion is greater than the vibration frequency of the second motion, the longitudinal stripping force applied by the brush head to the soft plaque or dental plaque on the tooth surface can be greater than the lateral stripping force, making the soft plaque and dental plaque on the tooth surface easier to clean.

[0136] Furthermore, since the driving frequency of the driving signal output by the circuit board will affect the vibration frequency of the brush head, the circuit board can affect the vibration frequency of the first movement and the vibration frequency of the second movement by changing the driving frequency of the first driving signal and the driving frequency of the second driving signal. For example, when the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal, the vibration frequency of the first movement can be made greater than the vibration frequency of the second movement. Alternatively, when the driving frequency of the first driving signal is less than or equal to the driving frequency of the second driving signal, the vibration frequency of the first movement can be made less than or equal to the vibration frequency of the second movement.

[0137] Furthermore, the vibration frequency of the first motion is greater than the vibration frequency of the second motion, which may include: the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion.

[0138] For example, the circuit board can output a vibration frequency of the first motion that is greater than or equal to twice the vibration frequency of the second motion. When the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion, the longitudinal peeling force applied by the brush head to the soft plaque and dental plaque on the tooth surface can be much greater than the transverse peeling force, thereby achieving a deeper cleaning of the soft plaque and dental plaque on the tooth surface.

[0139] Optionally, the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal, which may include: the driving frequency of the first driving signal is greater than or equal to twice the driving frequency of the second driving signal.

[0140] For example, because the driving frequency of the drive signal output by the circuit board affects the vibration frequency of the brush head movement, when the driving frequency of the first drive signal is greater than or equal to twice the driving frequency of the second drive signal, the vibration frequency of the first movement can be made greater than or equal to twice the vibration frequency of the second movement. This allows the brush head to exert a much greater longitudinal peeling force on soft plaque and dental plaque on the tooth surface than the transverse peeling force, achieving a deeper cleaning of the soft plaque and dental plaque on the tooth surface.

[0141] For example, in addition to the vibration frequency of the brush head in different directions affecting the cleaning effect of the teeth, the swing amplitude of the brush head in different directions may also affect the cleaning effect of the teeth. Therefore, the swing amplitude of the first movement and the movement amplitude of the second movement can be set by the circuit board.

[0142] Optionally, the swing amplitude of the first motion is smaller than or equal to the movement amplitude of the second motion, and / or the duty cycle of the first driving signal is smaller than or equal to the duty cycle of the second driving signal.

[0143] Exemplarily, when the vibration frequency of the first movement is equal to the vibration frequency of the second movement, the swing amplitude of the first movement and the movement amplitude of the second movement are also the same movement amplitude (that is, the vibration frequencies of the first movement and the second movement are equal and the movement amplitudes are also the same). Therefore, when the vibration frequency of the first movement is equal to the vibration frequency of the second movement, and the swing amplitude of the first movement is equal to the movement amplitude of the second movement, the projection of the trajectory of the synthetic movement of the brush head on the teeth can present a circle as shown in (a) in Figure 6, thereby improving the cleaning effect of the brush head on soft plaque and dental plaque on the tooth surface and performing a deeper cleaning of the teeth.

[0144] In addition, when the vibration frequency of the first movement is equal to the vibration frequency of the second movement, and the swing amplitude of the first movement is also equal to the movement amplitude of the second movement, if the user moves the electric toothbrush laterally while brushing his teeth, the projection of the trajectory of the synthetic movement of the brush head on the teeth can present a spring-shaped curve as shown in (c) in Figure 6, thereby improving the cleaning effect of the brush head on soft plaque and dental plaque on the tooth surface.

[0145] For example, when the vibration frequency of the first motion is equal to the vibration frequency of the second motion, the swing amplitude of the first motion can be smaller than the movement amplitude of the second motion (i.e., the vibration frequencies of the first motion and the second motion are equal but the movement amplitudes are different), that is, the reciprocating swing of the brush head with its own length extension direction as the axis is smaller than the reciprocating movement of the brush head along its own length extension direction, or the reciprocating movement of the brush head with its own length extension direction as the axis is smaller than the reciprocating movement of the brush head along its own length extension direction. In other words, when the vibration frequency of the first motion is equal to the vibration frequency of the second motion, the bidirectional motor can drive the longitudinal swing amplitude of the brush head to be smaller than the lateral movement amplitude, so that the projection of the trajectory of the combined motion of the brush head on the teeth presents an ellipse as shown in (b) in Figure 6, which can avoid damage to the gums due to the large longitudinal swing amplitude of the brush head during the cleaning process, thereby protecting the gums.

[0146] For example, when the vibration frequency of the first motion is equal to the vibration frequency of the second motion, the swing amplitude of the first motion can be greater than the movement amplitude of the second motion, that is, the reciprocating swing of the brush head with its own length extension direction as the axis is greater than the reciprocating movement of the brush head along its own length extension direction, or the reciprocating movement of the brush head with its own length extension direction as the axis is greater than the reciprocating movement of the brush head along its own length extension direction. In other words, when the vibration frequency of the first motion is equal to the vibration frequency of the second motion, the bidirectional motor can drive the longitudinal swing amplitude of the brush head on the teeth to be greater than the lateral movement amplitude, so that the projection of the trajectory of the combined motion of the brush head on the teeth presents an elliptical shape as shown in (f) in Figure 6, thereby increasing the longitudinal cleaning area of ​​the teeth by the brush head, thereby reducing the missed area when the brush head cleans the teeth, and cleaning the teeth more comprehensively.

[0147] Furthermore, since the duty cycle of the drive signal output by the circuit board affects the movement amplitude of the brush head, the duty cycles of the first drive signal and the second drive signal can be changed through the circuit board, thereby affecting the swing amplitude of the first movement and the movement amplitude of the second movement. For example, when the duty cycle of the first drive signal is less than or equal to the duty cycle of the second drive signal, the swing amplitude of the first movement can be made less than or equal to the movement amplitude of the second movement. Alternatively, when the duty cycle of the first drive signal is greater than the duty cycle of the second drive signal, the swing amplitude of the first movement can be made greater than the movement amplitude of the second movement.

[0148] Optionally, when the vibration frequency of the first movement is not equal to the vibration frequency of the second movement, the swing amplitude of the first movement and the movement amplitude of the second movement can also be equal movement amplitudes (that is, the vibration frequencies of the first movement and the second movement are not equal but the movement amplitudes are the same), so that when the vibration frequency of the first movement is not equal to the vibration frequency of the second movement, and the swing amplitude of the first movement is equal to the movement amplitude of the second movement, the longitudinal peeling force and the transverse peeling force applied to the teeth by the brush head when cleaning the teeth are different, and the projection of the trajectory of the synthetic movement of the brush head on the teeth presents a circle as shown in (a) in Figure 6, further improving the brush head's ability to clean soft plaque and dental plaque on the tooth surface, and performing a deeper cleaning of the teeth.

[0149] Exemplarily, when the vibration frequency of the first movement is not equal to the vibration frequency of the second movement, the swing amplitude of the first movement and the movement amplitude of the second movement may be unequal (that is, the vibration frequencies of the first movement and the second movement are not equal and the movement amplitudes are also different). Therefore, when the vibration frequency of the first movement and the vibration frequency of the second movement are not equal, and the swing amplitude of the first movement and the movement amplitude of the second movement are not equal, the longitudinal peeling force and the transverse peeling force applied by the brush head to the teeth when cleaning the teeth are different, and an elliptical motion trajectory is formed, thereby protecting the gums when cleaning the soft plaque or dental plaque on the tooth surface.

[0150] For example, when the vibration frequency of the first motion is greater than the vibration frequency of the second motion, the swing amplitude of the first motion can be equal to the movement amplitude of the second motion. That is, when the brush head cleans the teeth, the longitudinal peeling force exerted on the teeth is greater than the transverse peeling force, and the projection of the trajectory of the combined motion of the brush head on the teeth forms a circular shape as shown in Figure 6 (a), thereby improving the brush head's ability to clean soft plaque and dental plaque on the tooth surface and providing a deeper cleaning of the teeth.

[0151] For another example, when the vibration frequency of the first motion is greater than the vibration frequency of the second motion, the swing amplitude of the first motion can be smaller than the movement amplitude of the second motion. That is, when the brush head applies a longitudinal peeling force greater than a transverse peeling force to the teeth during cleaning, the projection of the trajectory of the combined motion of the brush head on the teeth presents an elliptical shape as shown in FIG6(b). This improves the brush head's ability to clean soft plaque and dental plaque on the tooth surface while preventing damage to the gums caused by the large longitudinal swing amplitude of the brush head during cleaning, thereby protecting the gums.

[0152] It should be noted that in different oral cleaning modes, the vibration frequency of the first movement and the vibration frequency of the second movement, as well as the size between the swing amplitude of the first movement and the movement amplitude of the second movement can be combined according to cleaning needs, thereby forming a variety of movement frequencies or movement amplitudes, affecting the movement of the brush head, and then affecting the movement trajectory of the brush head, so that the electric toothbrush with multiple driving mechanisms can combine more oral cleaning modes to better meet the user's oral cleaning needs.

[0153] In a possible implementation, there may be a preset time difference between the time when the circuit board outputs the first driving signal and the time when the circuit board outputs the second driving signal.

[0154] The preset time difference is the sum of N cycle durations and one-quarter cycle duration; or the preset time difference is the sum of N cycle durations and three-quarter cycle durations; the cycle duration is the duration of a single complete output of the first drive signal or the second drive signal; and N is an integer greater than or equal to 0. It should be understood that the cycle duration of the first drive signal and the cycle duration of the second drive signal may be the same.

[0155] Optionally, the first duration can be calculated using formula (1) or formula (2):

[0156] For example, the duration of a single complete output of the first drive signal and the second drive signal is both 8 seconds, and the number of cycles is 0. The following can be calculated using formula (1): Alternatively, we can calculate it using formula (2): And, N is an integer greater than or equal to zero, that is, N includes but is not limited to 0, 1, 2...N.

[0157] For example, when the bidirectional motor is reset, the brush head can be driven to swing in the center in the first movement corresponding direction and move in the extreme position in the second movement corresponding direction, so that the synthetic movement corresponding trajectory of the brush head is as closed as possible, which better simulates the circular motion.

[0158] Alternatively, when the bidirectional motor is reset, the brush head can be driven to swing in the first direction at the extreme position and move in the second direction at the center, or the combined motion trajectory of the brush head can be made as closed a curved trajectory as possible. In other words, when the brush head performs the combined motion, either the swing in the first direction or the movement in the second direction is at the center, while the other is at the extreme position.

[0159] FIG8 is a system diagram of another electric toothbrush provided in an embodiment of the present application.

[0160] For example, as shown in (a) in FIG8 , the circuit board in the electric toothbrush can first output a first drive signal for a first duration (for example, 2 seconds) so that the brush head is centered or at an extreme position in the direction corresponding to the first movement; thereafter, the first drive signal and the second drive signal are output simultaneously so that when the brush head performs a composite movement of the first movement and the second movement, there is always a first duration of asynchrony between the first drive signal and the second drive signal, that is, when the brush head performs a composite movement, any one of the swing in the direction corresponding to the first movement and the movement in the direction corresponding to the second movement is centered, and the other is at an extreme position, so that the projection of the trajectory of the composite movement of the brush head on the teeth is as closed a curve as possible, that is, the brush head better simulates the arc brushing method, so that the soft plaque or dental plaque on the tooth surface is applied with a multi-directional peeling force under high-frequency vibration, so that the soft plaque or dental plaque on the tooth surface is easier to be cleaned, thereby improving the cleaning ability of the electric toothbrush on the teeth.

[0161] For example, as shown in (b) in Figure 8, the circuit board in the electric toothbrush can also first output the second drive signal for a first duration (for example, 6 seconds) so that the brush head is centered or at the extreme position in the direction corresponding to the second movement; thereafter, the first drive signal and the second drive signal are output simultaneously, so that when the brush head performs the synthetic movement of the first movement and the second movement, there is always asynchrony of the first duration between the first drive signal and the second drive signal, thereby improving the cleaning ability of the electric toothbrush on the teeth.

[0162] It should be noted that, during the driving process of the electric toothbrush shown in (a) of Figure 8 and (b) of Figure 8, the vibration frequency of the first motion is equal to the vibration frequency of the second motion; and the first duration shown in (a) of Figure 8 and (b) of Figure 8 can represent the sum of N cycle durations and one-quarter cycle duration of a single complete output of the first drive signal or the second drive signal; or, the sum of N cycle durations and three-quarter cycle durations, and the first durations shown in (a) of Figure 8 and (b) of Figure 8 can be the same or different. For example, the first duration shown in (a) of Figure 8 is 2 seconds, which is different from the first duration shown in (b) of Figure 8, which is 6 seconds; when there is always a first duration asynchrony between the first drive signal and the second drive signal output by the circuit board, the cleaning ability of the electric toothbrush on the teeth can be improved, and the embodiments of the present application are not limited to this.

[0163] Exemplarily, in addition to causing the brush head to perform a combined motion of the first motion and the second motion, the circuit board can also cause the brush head to perform an alternating motion of a single motion and a combined motion.

[0164] Exemplarily, the circuit board suspends outputting the first driving signal and the second driving signal and outputs a single driving signal; suspends outputting the single driving signal and again outputs the first driving signal and the second driving signal simultaneously.

[0165] Optionally, the single driving signal may include the first driving signal or the second driving signal.

[0166] Exemplarily, when the first drive signal and the second drive signal are output simultaneously, if the circuit board pauses outputting the first drive signal and the second drive signal, it can output the first drive signal or the second drive signal separately; and when the output of the first drive signal or the second drive signal is paused, the first drive signal and the second drive signal can be output simultaneously again, so that the brush head can perform alternating synthetic motion and unidirectional motion, so that when the brush head is cleaning the teeth, it can not only apply multi-directional force to remove soft plaque and dental plaque on the tooth surface, but also clean the teeth longitudinally or transversely separately, thereby increasing the movement trajectory of the brush head and performing a more comprehensive cleaning of the tooth surface.

[0167] FIG9 is a system diagram of another electric toothbrush provided in an embodiment of the present application.

[0168] For example, as shown in (a) in Figure 9, after simultaneously outputting the first drive signal and the second drive signal, if the circuit board pauses outputting the first drive signal and the second drive signal, it can output the first drive signal alone; and when pausing the output of the first drive signal, it outputs the first drive signal and the second drive signal again simultaneously, so that the circuit board can alternately output "first drive signal + second drive signal → first drive signal → first drive signal + second drive signal" to make the brush head perform alternating motion of "synthetic motion → first motion → synthetic motion", so that when the brush head is cleaning the teeth, it can not only simultaneously apply multi-directional force to remove soft plaque and dental plaque on the surface of the teeth, but also perform longitudinal cleaning of the teeth alone and deep cleaning of the gaps between the teeth, further improving the cleaning effect of the teeth.

[0169] For example, as shown in (b) in Figure 9, after simultaneously outputting the first drive signal and the second drive signal, if the circuit board pauses outputting the first drive signal and the second drive signal, it can output the second drive signal alone; and when pausing the output of the second drive signal, it outputs the first drive signal and the second drive signal simultaneously again, so that the circuit board can alternately output "first drive signal + second drive signal → second drive signal → first drive signal + second drive signal" to drive the brush head to perform alternating motion of "synthetic motion → second motion → synthetic motion", so that when the brush head is cleaning the teeth, it can not only simultaneously apply multi-directional force to remove soft plaque and dental plaque on the tooth surface, but also perform horizontal cleaning of the teeth alone, and massage the gum line while cleaning the gums, which can effectively prevent gum line atrophy.

[0170] Optionally, after simultaneously outputting the first drive signal and the second drive signal, if the circuit board pauses outputting the first drive signal and the second drive signal, it may also alternately output the first drive signal and the second drive signal, and when pausing the output of the first drive signal and the second drive signal, it may again output the first drive signal and the second drive signal simultaneously, so that the circuit board can alternately output "first drive signal + second drive signal → first drive signal → first drive signal + second drive signal → second drive signal → first drive signal + second drive signal" to drive the brush head to perform alternating motions of "synthetic motion → first motion → synthetic motion → second motion → synthetic motion", so that when the brush head is cleaning the teeth, it can not only apply multi-directional force to the soft plaque on the surface of the teeth to peel off the dental plaque, but also perform longitudinal and transverse cleaning of the teeth separately, thereby increasing the cleaning effect of the brush head on the gaps between the teeth and massaging the gum line during the cleaning process.

[0171] In one possible implementation, the electric toothbrush may further include a position detection unit connected to the circuit board. The position detection unit may be configured to detect a cleaning position of the brush head in the oral cavity and transmit the cleaning position to the circuit board, so that upon receiving the cleaning position, the circuit board adjusts the first drive signal and / or the second drive signal accordingly based on the cleaning position detected by the position detection unit.

[0172] Optionally, the handle of the electric toothbrush may further include a position detection unit, and the position detection unit is interconnected with the circuit board for data transmission.

[0173] Optionally, the position detection unit may include, but is not limited to, an accelerometer and a gyroscope, and the accelerometer and gyroscope may be used to detect the current position of the brush head in the oral cavity; for example, the position detection unit may detect that the current position of the brush head in the oral cavity is the tooth side surface and the occlusal surface, or the tongue coating surface. The tooth side surface may include all non-occlusal tooth surfaces, such as the buccal side surface, the lingual side surface, the two surfaces adjacent to the front and back teeth, and the distal and mesial surfaces.

[0174] For example, when the position detection unit detects that the brush head is currently on the side surface of the tooth or the occlusal surface, the position information can be sent to the circuit board so that the circuit board adjusts the first drive signal and / or the second drive signal according to the received position information, so that the cleaning method of the brush head is more in line with the cleaning requirements of different cleaning positions in the oral cavity, thereby improving the cleaning efficiency of the electric toothbrush for the oral cavity.

[0175] Optionally, the circuit board outputs the first drive signal and the second drive signal only when the position information received is the tooth side surface or the occlusal surface, thereby avoiding the problem that the user triggers the oral cleaning instruction when the brush head is not in contact with the tooth side surface or the occlusal surface, causing the movement of the brush head to cause the cleaning products (for example, toothpaste) placed therein to splash, thereby improving the user experience.

[0176] Exemplarily, according to the cleaning position detected by the position detection unit, adjusting the first drive signal and / or the second drive signal of the circuit board according to the cleaning position may include multiple implementations, which are introduced as follows:

[0177] Implementation method 1:

[0178] If the cleaning position detected by the position detection unit is the tooth side surface, the circuit board can be used to perform at least one of the following four operations:

[0179] (1) Adjust the swing amplitude of the first movement to be greater than the movement amplitude of the second movement;

[0180] (2) adjusting the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal;

[0181] (3) adjusting the vibration frequency of the first motion to be greater than the vibration frequency of the second motion;

[0182] (4) The driving frequency of the first driving signal is adjusted to be greater than the driving frequency of the second driving signal.

[0183] For example, since the area of ​​the tooth side surface that needs to be cleaned is larger, when the position detection unit detects that the brush head is currently on the tooth side surface, the position information can be sent to the circuit board, so that the circuit board adjusts the swing amplitude of the brush head in the first movement to be greater than the movement amplitude of the second movement according to the received position information; and / or, the swing amplitude of the first movement and the movement amplitude of the second movement are adjusted by adjusting the duty cycle of the first drive signal and the duty cycle of the second drive signal, that is, adjusting the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal, thereby improving the cleaning ability of the brush head on the tooth side surface.

[0184] For example, when the position detection unit detects that the brush head is currently on the side surface of the tooth, the circuit board can adjust the swing amplitude of the brush head in the first movement to be greater than the movement amplitude of the second movement, that is, the longitudinal swing amplitude of the brush head is greater than the lateral movement amplitude, thereby increasing the longitudinal cleaning area of ​​the tooth side surface by the brush head, reducing the missed area when the brush head cleans the tooth side surface, and cleaning the tooth side surface more comprehensively.

[0185] For another example, when the position detection unit detects that the brush head is currently on the side surface of the tooth, the circuit board can adjust the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal, so as to adjust the swing amplitude of the first movement of the brush head to be greater than the movement amplitude of the second movement, thereby increasing the longitudinal cleaning area of ​​the tooth side surface by the brush head, reducing the missed area when the brush head cleans the tooth side surface, and cleaning the tooth side surface more comprehensively.

[0186] For example, since the area on the tooth side that needs to be cleaned is larger and may include more soft plaque and dental plaque, when the position detection unit detects that the brush head is currently on the tooth side, the position information can be sent to the circuit board, so that the circuit board adjusts the vibration frequency of the brush head in the first movement to be greater than the vibration frequency of the second movement according to the received position information; and / or, the vibration frequency of the first movement and the vibration frequency of the second movement are adjusted by adjusting the driving frequency of the first drive signal and the driving frequency of the second drive signal, that is, the driving frequency of the first drive signal is adjusted to be greater than the driving frequency of the second drive signal.

[0187] For example, when the position detection unit detects that the brush head is currently on the side surface of the tooth, the circuit board can adjust the vibration frequency of the brush head in the first movement to be greater than the vibration frequency of the second movement, so that the brush head applies a larger longitudinal peeling force to the soft plaque and dental plaque on the tooth surface when cleaning the side surface of the tooth, thereby performing a deeper cleaning of the soft plaque and dental plaque on the side surface of the tooth.

[0188] For another example, when the position detection unit detects that the brush head is currently on the side surface of the tooth, the circuit board can adjust the driving frequency of the first driving signal to be greater than the driving frequency of the second driving signal, so as to adjust the first movement vibration frequency of the brush head to be greater than the second movement vibration frequency, so that the brush head applies a greater longitudinal peeling force to the soft plaque and dental plaque on the tooth surface when cleaning the side surface of the tooth, thereby improving the cleaning effect of the brush head on the side surface of the tooth.

[0189] Implementation method 2:

[0190] When the cleaning position detected by the position detection unit is the occlusal surface, the circuit board can be used to perform at least one of the following four operations:

[0191] (1) Adjust the swing amplitude of the first movement to be smaller than the movement amplitude of the second movement;

[0192] (2) adjusting the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal;

[0193] (3) adjusting the vibration frequency of the first motion to be smaller than the vibration frequency of the second motion;

[0194] (4) The driving frequency of the first driving signal is adjusted to be lower than the driving frequency of the second driving signal.

[0195] For example, since the area of ​​the occlusal surface that needs to be cleaned is small and narrow, in order to avoid the brush head missing the target when cleaning the occlusal surface, when the position detection unit detects that the brush head is currently on the occlusal surface, the position information can be sent to the circuit board, so that the circuit board adjusts the swing amplitude of the brush head in the first movement to be smaller than the movement amplitude of the second movement according to the received position information; and / or adjusts the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal, thereby improving the cleaning efficiency of the brush head on the occlusal surface.

[0196] For example, when the position detection unit detects that the brush head is currently on the occlusal surface, the circuit board can adjust the swing amplitude of the brush head in the first movement to be smaller than the movement amplitude of the second movement, that is, the longitudinal swing amplitude of the brush head is smaller than the lateral movement amplitude. This can avoid the problem that when the brush head swings too much in the longitudinal direction, only a small area of ​​the brush head is in contact with the occlusal surface, resulting in low cleaning efficiency, thereby improving the cleaning efficiency of the brush head on the occlusal surface.

[0197] For another example, when the position detection unit detects that the brush head is currently on the occlusal surface, the circuit board can adjust the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal, so as to adjust the swing amplitude of the first movement of the brush head to be smaller than the movement amplitude of the second movement, thereby avoiding the problem of low cleaning efficiency due to excessive longitudinal swing of the brush head, and improving the cleaning efficiency of the brush head on the occlusal surface.

[0198] For example, since the area of ​​the occlusal surface that needs to be cleaned is small and narrow, there may be uneven areas, and food residues that are difficult to clean may exist in the uneven areas. When the position detection unit detects that the brush head is currently on the occlusal surface, the position information can be sent to the circuit board, so that the circuit board adjusts the vibration frequency of the brush head in the first movement to be lower than the vibration frequency of the second movement according to the received position information; and / or adjusts the driving frequency of the first driving signal to be lower than the driving frequency of the second driving signal, so that the brush head can apply a larger lateral peeling force to the food residue, making the food residue on the occlusal surface easier to clean.

[0199] For example, when the position detection unit detects that the brush head is currently on the occlusal surface, the circuit board can adjust the vibration frequency of the brush head in the first movement to be lower than the vibration frequency of the second movement, that is, the vibration frequency of the second movement is higher than the vibration frequency of the first movement, so that the brush head applies a larger lateral peeling force when cleaning the occlusal surface, thereby making food residues on the occlusal surface easier to clean and improving the cleaning efficiency of the brush head on the occlusal surface.

[0200] For another example, when the position detection unit detects that the brush head is currently on the occlusal surface, the circuit board can adjust the driving frequency of the first driving signal to be lower than the driving frequency of the second driving signal, so as to adjust the vibration frequency of the first movement of the brush head to be lower than the vibration frequency of the second movement, thereby causing the brush head to apply a larger lateral peeling force when cleaning the occlusal surface, making it easier to clean food residues on the occlusal surface and improving the cleaning efficiency of the brush head on the occlusal surface.

[0201] Implementation method three:

[0202] Based on the cleaning position detected by the position detection unit, the circuit board can be used to perform at least one of the following two actions:

[0203] (1) adjusting the duty cycle of the first drive signal corresponding to the tooth side surface to be greater than the duty cycle of the first drive signal corresponding to the occlusal surface;

[0204] (2) The driving frequency of the second driving signal corresponding to the tooth side surface is adjusted to be lower than the driving frequency of the second driving signal corresponding to the occlusal surface.

[0205] For example, since the area that needs to be cleaned on the side surfaces of the teeth is larger than the area that needs to be cleaned on the occlusal surface, the soft plaque and dental plaque on the side surfaces of the teeth may be far greater than the soft plaque and dental plaque on the occlusal surface; therefore, in order to improve the cleaning efficiency of the brush head on the side surfaces of the teeth, the circuit board can adjust the duty cycle of the first drive signal corresponding to the side surfaces of the teeth to be greater than the duty cycle of the first drive signal corresponding to the occlusal surface, so that the swing amplitude of the first movement corresponding to the brush head on the side surfaces of the teeth is greater than the swing amplitude of the first movement corresponding to the occlusal surface, so that the cleaning area of ​​the brush head on the side surfaces of the teeth is greater than the cleaning area of ​​the occlusal surface, so as to clean more soft plaque and dental plaque on the side surfaces of the teeth, thereby improving the cleaning efficiency of the brush head on the side surfaces of the teeth.

[0206] Furthermore, since the swing amplitude of the first motion can be adjusted by adjusting the duty cycle of the first drive signal, that is, adjusting the duty cycle of the first drive signal corresponding to the tooth side surface to be greater than the duty cycle of the first drive signal corresponding to the occlusal surface, the circuit board can adjust the swing amplitude of the first motion corresponding to the tooth side surface to be greater than the swing amplitude of the first motion corresponding to the occlusal surface.

[0207] Alternatively, the circuit board may directly adjust the swing amplitude of the first movement corresponding to the tooth side surface to be greater than the swing amplitude of the first movement corresponding to the occlusal surface.

[0208] For example, since the brush head may come into contact with a large area of ​​the gums when cleaning the lateral surfaces of the teeth, if the vibration frequency of the brush head's lateral movement is too high, it may damage the gums. However, when cleaning the occlusal surface, the brush head does not come into contact with the gums and naturally does not damage the gums. Therefore, to protect the gums, the circuit board can adjust the driving frequency of the second driving signal corresponding to the lateral surfaces of the teeth to be lower than the driving frequency of the second driving signal corresponding to the occlusal surface. This prevents the brush head from damaging the gums when cleaning the lateral surfaces of the teeth, thereby protecting the gums.

[0209] Furthermore, since the vibration frequency of the second motion can be adjusted by adjusting the driving frequency of the second driving signal, that is, the driving frequency of the second driving signal corresponding to the tooth side surface is lower than the driving frequency of the second driving signal corresponding to the occlusal surface, the circuit board can adjust the vibration frequency of the second motion corresponding to the tooth side surface to be lower than the vibration frequency of the second motion corresponding to the occlusal surface.

[0210] Alternatively, the circuit board may directly adjust the vibration frequency of the second motion corresponding to the tooth side surface to be smaller than the vibration frequency of the second motion corresponding to the occlusal surface.

[0211] Optionally, if the position detection unit detects that the brush head is not in contact with either the tooth side surface or the occlusal surface, the circuit board suspends output of the first drive signal and the second drive signal.

[0212] Exemplarily, when the position detection unit detects that the brush head is not currently in contact with the tooth side surface and the occlusal surface, the position information can be sent to the circuit board to cause the circuit board to suspend the output of the first drive signal and / or the second drive signal, thereby preventing the brush head from moving when it is not in contact with the tooth side surface or the occlusal surface. That is, when the brush head is not currently in contact with the tooth side surface or the occlusal surface, the brush head is in a stationary state, thereby avoiding the loss of energy consumption of the electric toothbrush when the brush head is not cleaning the teeth, thereby improving the endurance of the electric toothbrush.

[0213] The control method of the electric toothbrush provided in the embodiment of the present application is described in detail below with reference to Figures 10 to 13.

[0214] Next, the control method of the electric toothbrush provided in the embodiment of the present application is described in conjunction with Figures 1 to 9 above. Figure 10 is a flow chart of a control method of an electric toothbrush provided in the embodiment of the present application. The control method of the electric toothbrush can be executed by the toothbrush 100 in Figure 1 or by the control unit 110 in Figure 1 (i.e., the aforementioned circuit board).

[0215] Exemplarily, as shown in FIG10 , the control method 1000 of the electric toothbrush includes the following implementation process:

[0216] S1010, an oral cleaning instruction is detected.

[0217] For example, when the user needs to clean the oral cavity, the user can click the control button of the electric toothbrush to trigger the oral cleaning instruction. Alternatively, the user can send an oral cleaning instruction to the electric toothbrush through a smart terminal connected to the electric toothbrush, so that the control unit can detect the oral cleaning instruction for oral cleaning.

[0218] S1020, in response to the oral cleaning instruction, determine the corresponding first drive signal and second drive signal; based on the first drive signal, control the cleaning element of the electric toothbrush to generate a first movement, and based on the second drive signal, control the cleaning element to generate a second movement.

[0219] The first movement and the second movement have different movement directions, that is, the first movement may represent the reciprocating swing of the cleaning member with the length extension direction of the cleaning member as the axis; the second movement may represent the reciprocating movement along the length extension direction of the cleaning member.

[0220] Alternatively, the first motion may also represent a reciprocating movement of the cleaning member with the length extension direction of the cleaning member as the axis.

[0221] Exemplarily, a correspondence between oral cleaning parameters and the first drive signal and the second drive signal can be pre-stored in the electric toothbrush, so that after receiving the oral cleaning instruction, the control unit can respond to the oral cleaning instruction and query the corresponding first drive signal and the second drive signal from the correspondence according to the oral cleaning parameters carried by the oral cleaning instruction, so as to control (also be understood as "drive") the cleaning element of the electric toothbrush (i.e., the above-mentioned brush head) to produce reciprocating swing with its own length extension direction as the axis based on the first drive signal, and control the cleaning element to produce reciprocating movement along its own length extension direction based on the second drive signal.

[0222] Alternatively, in response to an oral cleaning instruction, and based on the oral cleaning parameters carried by the oral cleaning instruction, the corresponding first drive signal and second drive signal are queried from the corresponding relationship, so as to control the cleaning element of the electric toothbrush to produce reciprocating movement with its own length extension direction as the axis based on the first drive signal, and control the cleaning element to produce reciprocating movement along its own length extension direction based on the second drive signal.

[0223] In one possible implementation, the electric toothbrush may further include a multi-directional motor, for example, a bidirectional motor. In S1020, controlling the cleaning member of the electric toothbrush to generate a first motion based on the first drive signal and controlling the cleaning member to generate a second motion based on the second drive signal may be achieved by the bidirectional motor, and may include: controlling the bidirectional motor to drive the cleaning member to generate the first motion based on the first drive signal, and controlling the bidirectional motor to drive the cleaning member to generate the second motion based on the second drive signal.

[0224] Referring to (a) in Figure 5, when the control unit detects an oral cleaning instruction triggered by the user, it can output a first drive signal to the bidirectional motor to control the bidirectional motor to drive the cleaning member to produce a first movement (as shown in (a) in Figure 5). When the bidirectional motor drives the cleaning member to produce the first movement, the cleaning member can apply a longitudinal peeling force to the soft plaque or dental plaque on the surface of the teeth, thereby longitudinally cleaning the soft plaque or dental plaque on the surface of the teeth.

[0225] Referring to (b) in Figure 5, when the control unit detects an oral cleaning instruction triggered by the user, it can also output a second drive signal to the bidirectional motor to control the bidirectional motor to drive the cleaning element to produce a second movement (as shown in (b) in Figure 5). When the bidirectional motor drives the cleaning element to produce the second movement, the cleaning element can apply a lateral peeling force to the soft plaque or dental plaque on the surface of the teeth, thereby performing lateral cleaning of the soft plaque or dental plaque on the surface of the teeth.

[0226] S1030, outputting the first driving signal and the second driving signal simultaneously to enable the cleaning member to perform a combined motion of the first motion and the second motion.

[0227] Exemplarily, after the control unit determines the corresponding first drive signal and second drive signal in response to the detected oral cleaning instruction, it can control the first drive signal and the second drive signal to be output simultaneously, so that the cleaning member can clean the oral cavity according to the composite motion of the first motion driven by the first drive signal and the second motion driven by the second drive signal (as shown in (a) in Figure 4, or (b) in Figure 4), that is, a circular motion.

[0228] Furthermore, since the output time of the first drive signal and the output time of the second drive signal, as well as the vibration frequency of the first movement and the vibration frequency of the second movement of the cleaning member may all affect the corresponding projection of the cleaning member on the teeth when the cleaning member performs a circular motion on the teeth, the curve shape of the corresponding projection of the cleaning member on the teeth when the cleaning member performs a circular motion on the teeth may include but is not limited to the shape shown in Figure 6, which will not be repeated here.

[0229] Optionally, as shown in (c) in Figure 5, when the control unit detects an oral cleaning instruction triggered by the user, it can simultaneously output a first drive signal and a second drive signal to the bidirectional motor to control the bidirectional motor to drive the cleaning element to generate a first motion and a second motion with different motion directions, so that the cleaning element performs a synthetic motion of high-frequency vibration, thereby improving the cleaning force of the cleaning element, so that when the teeth are scraped in multiple directions under high-frequency vibration, the soft plaque and dental plaque on the teeth are easier to clean; and because the cleaning element cleans the teeth through a circular motion, it can smoothly scrape the tooth surface or the position where the teeth and gums meet, thereby avoiding damage to the gums due to straight scraping, and can also massage the gums to avoid gum atrophy.

[0230] In the method 1000 shown in FIG10 , the cleaning member outputs two motions in two different directions (i.e., the first motion and the second motion) simultaneously by outputting two driving signals at the same time, thereby realizing a composite motion of the cleaning member in two different directions; and the composite motion is an arc motion generated by signal transmission, which can avoid the problem of poor oral cleaning effect caused by the cleaning member performing a single motion to clean the oral cavity, and will not be limited by the mechanical transmission on the movement frequency of the cleaning member, thereby avoiding the problem of weak cleaning force caused by the movement of the cleaning member under mechanical transmission, so that the cleaning member can apply a multi-directional peeling force to the soft plaque or dental plaque on the tooth surface under high-frequency vibration, making the soft plaque or dental plaque on the tooth surface easier to clean, thereby improving the cleaning ability of the electric toothbrush on the teeth.

[0231] Furthermore, because the cleaning element performs a circular motion composed of a first motion and a second motion, it can avoid damage to the gums caused by straight scraping caused by a single motion. Therefore, when the cleaning element cleans the teeth through a circular motion, it can smoothly scrape the tooth surface or the area where the teeth meet the gums, thereby avoiding damage to the gums caused by straight scraping. It can also massage the gums and prevent gum recession.

[0232] For example, since the vibration frequency of the cleaning element in different directions may also affect the cleaning effect of the teeth, the vibration frequency of the first movement and the vibration frequency of the second movement can be set. In addition, in addition to the vibration frequency of the cleaning element in different directions affecting the cleaning effect of the teeth, the swing amplitude of the cleaning element in different directions may also affect the cleaning effect of the teeth. Therefore, the swing amplitude of the first movement and the movement amplitude of the second movement can be set.

[0233] It should be noted that the specific implementation methods for setting the vibration frequency of the first movement and the vibration frequency of the second movement, as well as setting the swing amplitude of the first movement and the movement amplitude of the second movement can refer to the detailed descriptions of Figures 3 to 9 above, and will not be repeated here.

[0234] Optionally, the simultaneously outputting the first drive signal and the second drive signal in S530 may include: after outputting the first drive signal for a first time period, simultaneously outputting the first drive signal and the second drive signal for a continuous period.

[0235] It should be noted that, for the specific implementation of outputting the first drive signal and the second drive signal simultaneously after the first drive signal is output for the first duration, reference can be made to the detailed description of FIG8 above, which will not be repeated here.

[0236] Optionally, in addition to controlling the cleaning member to perform a combined motion of the first motion and the second motion, the control unit may also control the cleaning member to perform an alternating motion of a single motion and a combined motion.

[0237] It should be noted that the specific implementation of the control unit controlling the cleaning member to perform alternating single motion and combined motion can refer to the detailed description of FIG9 above, which will not be repeated here.

[0238] Exemplarily, when the position detection unit included in the electric toothbrush detects that the cleaning element is currently on the tooth side or the occlusal surface, the position information can be sent to the control unit so that the control unit adjusts the first drive signal and / or the second drive signal according to the received position information.

[0239] Exemplarily, the control unit outputs the first drive signal and the second drive signal only when the received position information is the tooth side surface or the occlusal surface, thereby avoiding the problem that the user triggers the oral cleaning instruction when the cleaning piece is not in contact with the tooth side surface or the occlusal surface, causing the movement of the cleaning piece to cause the cleaning product (for example, toothpaste) placed therein to splash, thereby improving the user experience.

[0240] Exemplarily, the control unit adjusting the first drive signal and / or the second drive signal corresponding to the cleaning position according to the cleaning position detected by the position detection unit may include the above-mentioned implementation mode one, implementation mode two and implementation mode three.

[0241] It should be noted that the specific implementation methods of implementation method 1, implementation method 2 and implementation method 3 can refer to the detailed description of Figures 3 to 9 above, and will not be repeated here.

[0242] FIG11 is a flow chart of another method for controlling an electric toothbrush provided in an embodiment of the present application.

[0243] Exemplarily, as shown in FIG11 , the control method 1100 of the electric toothbrush includes the following implementation process:

[0244] S1110, an oral cleaning instruction is detected.

[0245] For example, when the user needs to clean the oral cavity, the user may click the control button of the electric toothbrush to trigger the oral cleaning instruction, so that the control unit may detect the oral cleaning instruction for oral cleaning.

[0246] S1120, determine whether the cleaning position is the tooth side surface or the occlusal surface; if so, execute S1130; if not, execute S1180.

[0247] Exemplarily, after detecting an oral cleaning instruction for oral cleaning, the control unit can enable the position detection unit to detect the current position of the cleaning piece in the oral cavity, and determine whether the cleaning position is the tooth side surface or the occlusal surface based on the position information detected by the position detection unit.

[0248] S1130, in response to the oral cleaning instruction, determine the corresponding first drive signal and second drive signal; based on the first drive signal, control the cleaning element of the electric toothbrush to generate a first movement, and based on the second drive signal, control the cleaning element to generate a second movement.

[0249] Exemplarily, when the cleaning position is determined to be the tooth side surface or the occlusal surface, it can respond to an oral cleaning instruction and, based on the oral cleaning parameters carried by the oral cleaning instruction, query the corresponding first drive signal and second drive signal from the pre-stored correspondence between the oral cleaning parameters and the first drive signal and the second drive signal; and based on the first drive signal, control the cleaning element to produce reciprocating swings with its own length extension direction as the axis, and based on the second drive signal, control the cleaning element to produce reciprocating movements along its own length extension direction.

[0250] Alternatively, in response to an oral cleaning instruction, and based on the oral cleaning parameters carried by the oral cleaning instruction, the corresponding first drive signal and second drive signal are queried from the corresponding relationship, so as to control the cleaning member to produce reciprocating movement with its own length extension direction as the axis based on the first drive signal, and to control the cleaning member to produce reciprocating movement along its own length extension direction based on the second drive signal.

[0251] S1140, outputting the first driving signal and the second driving signal simultaneously to enable the cleaning member to perform a combined motion of the first motion and the second motion.

[0252] Exemplarily, after determining the corresponding first drive signal and second drive signal in response to the detected oral cleaning instruction, the first drive signal and the second drive signal can be controlled to be output simultaneously, so that the cleaning member can clean the oral cavity according to the synthetic motion of the first motion driven by the first drive signal and the second motion driven by the second drive signal.

[0253] It should be noted that the specific implementation of S1140 has been introduced in detail in S1030 and will not be repeated here.

[0254] S1150 , suspending the output of the first driving signal and the second driving signal, and outputting a single driving signal.

[0255] Exemplarily, after simultaneously outputting the first drive signal and the second drive signal, if the output of the first drive signal and the second drive signal is paused, the control unit may output a single drive signal, that is, output the first drive signal or the second drive signal alone.

[0256] S1160, suspending the output of a single driving signal.

[0257] Exemplarily, after the first driving signal or the second driving signal is outputted separately, if the outputting of the single driving signal is suspended, S1170 may be executed.

[0258] S1170, outputting the first driving signal and the second driving signal simultaneously to enable the cleaning member to perform a combined motion of the first motion and the second motion.

[0259] For example, when the first drive signal and the second drive signal are output simultaneously, if the control unit pauses outputting the first drive signal and the second drive signal, it may output the first drive signal or the second drive signal separately; and when the output of the first drive signal or the second drive signal is paused, it may output the first drive signal and the second drive signal simultaneously again.

[0260] S1180 , suspending the output of the first driving signal and the second driving signal.

[0261] For example, when it is determined through S1120 that the cleaning position is not the tooth side surface and the occlusal surface, the output of the first drive signal and / or the second drive signal can be suspended to avoid the cleaning element from moving when it is not in contact with the tooth side surface or the occlusal surface. That is, when the cleaning element is not currently in contact with the tooth side surface or the occlusal surface, the cleaning element is controlled to be in a stationary state, thereby avoiding the loss of energy consumption of the electric toothbrush when the cleaning element is not cleaning the teeth, thereby improving the endurance of the electric toothbrush.

[0262] It should be noted that the embodiments corresponding to all the steps in FIG11 are introduced in FIG3 to FIG10 and will not be repeated here.

[0263] It should be understood that the above examples are intended to help those skilled in the art understand the embodiments of the present application, and are not intended to limit the embodiments of the present application to the specific numerical values ​​or specific scenarios illustrated. Those skilled in the art can obviously make various equivalent modifications or variations based on the above examples, and such modifications or variations also fall within the scope of the embodiments of the present application.

[0264] The control method for the electric toothbrush provided in the embodiments of the present application is described in detail above with reference to Figures 1 to 11 ; the device embodiment of the present application will be described in detail below with reference to Figures 12 and 13 . It should be understood that the device in the embodiments of the present application can execute the various methods of the aforementioned embodiments of the present application. That is, the specific working processes of the various products below can refer to the corresponding processes in the aforementioned method embodiments.

[0265] FIG12 is a schematic diagram of the structure of the control device of the electric toothbrush provided in an embodiment of the present application. Exemplarily, as shown in FIG12 , the control device 1200 of the electric toothbrush includes a detection module 1210 , a control module 1220 and an output module 1230 .

[0266] Detection module 1210: used to detect oral cleaning instructions;

[0267] Control module 1220: for determining a corresponding first drive signal and a second drive signal in response to an oral cleaning instruction; controlling a cleaning member of the electric toothbrush to generate a first motion based on the first drive signal, and controlling the cleaning member to generate a second motion based on the second drive signal; wherein the first motion and the second motion have different directions of motion;

[0268] Output module 1230: used for simultaneously outputting the first driving signal and the second driving signal, so as to enable the cleaning member to perform a combined motion of the first motion and the second motion.

[0269] In a possible implementation, the first motion includes reciprocating swinging of the cleaning member along an axis extending in the length direction of the cleaning member; and the second motion includes reciprocating movement along the length direction of the cleaning member.

[0270] In a possible implementation, the first movement further includes a reciprocating movement with the length extension direction of the cleaning member as the axis.

[0271] In a possible implementation, the vibration frequency of the first motion is equal to the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

[0272] In a possible implementation, the swing amplitude of the first motion is smaller than or equal to the movement amplitude of the second motion; and / or the duty cycle of the first driving signal is smaller than or equal to the duty cycle of the second driving signal.

[0273] In one possible implementation, the output module 1230 is specifically configured to: after outputting the first drive signal for a first duration, simultaneously output the first drive signal and the second drive signal; wherein the first duration is the sum of N cycle durations and a quarter cycle duration; or, the first duration is the sum of N cycle durations and three-quarter cycle durations; N is an integer greater than or equal to zero, and the cycle duration is the duration of a single complete output of the first drive signal or the second drive signal.

[0274] In one possible implementation, the output module 1230 is specifically configured to: pause the output of the first drive signal and the second drive signal, and output a single drive signal; wherein the single drive signal is the first drive signal or the second drive signal; pause the output of the single drive signal, and again simultaneously output the first drive signal and the second drive signal.

[0275] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

[0276] In a possible implementation, the vibration frequency of the first motion is greater than the vibration frequency of the second motion, which includes: the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion.

[0277] In a possible implementation, the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal, including: the driving frequency of the first driving signal is greater than or equal to twice the driving frequency of the second driving signal.

[0278] In one possible implementation, the electric toothbrush includes a position detection unit, which is used to detect the cleaning position of the cleaning member in the oral cavity; the control module 1220 is specifically used to: if the cleaning position is detected to be the tooth side surface, adjust the swing amplitude of the first motion to be greater than the movement amplitude of the second motion; if the cleaning position is detected to be the tooth side surface, adjust the duty cycle of the first drive signal to be greater than the duty cycle of the second drive signal; if the cleaning position is detected to be the tooth side surface, adjust the vibration frequency of the first motion to be greater than the vibration frequency of the second motion; if the cleaning position is detected to be the tooth side surface, adjust the driving frequency of the first drive signal to be greater than the driving frequency of the second drive signal.

[0279] In one possible implementation, the control module 1220 is specifically used to: if the cleaning position is detected as the occlusal surface, adjust the swing amplitude of the first movement to be smaller than the movement amplitude of the second movement; if the cleaning position is detected as the occlusal surface, adjust the duty cycle of the first drive signal to be smaller than the duty cycle of the second drive signal; if the cleaning position is detected as the occlusal surface, adjust the vibration frequency of the first movement to be smaller than the vibration frequency of the second movement; if the cleaning position is detected as the occlusal surface, adjust the driving frequency of the first drive signal to be smaller than the driving frequency of the second drive signal.

[0280] In one possible implementation, the surface to be cleaned includes the tooth side surface, and the control module 1220 is specifically used to: the duty cycle of the first drive signal corresponding to the tooth side surface is greater than the duty cycle of the first drive signal corresponding to the occlusal surface; the driving frequency of the second drive signal corresponding to the tooth side surface is less than the driving frequency of the second drive signal corresponding to the occlusal surface.

[0281] In one possible implementation, the electric toothbrush also includes a bidirectional motor; the control module 1220 is specifically used to: based on the first drive signal, control the bidirectional motor to drive the cleaning element to produce a first motion, and based on the second drive signal, control the bidirectional motor to drive the cleaning element to produce a second motion.

[0282] It should be noted that the device 1210 is embodied in the form of a functional module. The term "module" herein can be implemented in the form of software and / or hardware, and is not specifically limited thereto.

[0283] For example, a "module" may be a software program, a hardware circuit, or a combination of the two that implements a function. The hardware circuit may include an application-specific integrated circuit (ASIC), an electronic circuit, a processor (e.g., a shared processor, a dedicated processor, or a group processor) and memory for executing one or more software or firmware programs, combined logic circuits, and / or other suitable components that support the described functions.

[0284] Therefore, the modules of each example described in the embodiments of this application can be implemented with electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professionals and technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0285] FIG13 is a schematic structural diagram of an electric toothbrush provided in an embodiment of the present application.

[0286] Exemplarily, as shown in FIG. 13 , the electric toothbrush 100 includes: at least one processor 1310 , a cleaning member 1320 , a user interface 1330 , a memory 1340 , at least one network interface 1350 , and at least one communication bus 1360 .

[0287] The electric toothbrush 100 may be, but is not limited to, an oral cleaning device such as a dental cleaning device.

[0288] The communication bus 1360 is used to implement the connection and communication between these components.

[0289] The cleaning piece 1320 is used to care for the user's oral cavity.

[0290] The user interface 1330 may include a display screen (Display) and a camera (Camera). Optionally, the user interface 1330 may also include a standard wired interface and a wireless interface.

[0291] The network interface 1350 may optionally include a Bluetooth module, a Near Field Communication (NFC) module, a Wireless Fidelity (Wi-Fi) module, and the like.

[0292] The processor 1310 may include one or more processing cores. The processor 1310 utilizes various interfaces and circuits to connect various components within the electric toothbrush 100. It executes instructions, programs, code sets, or instruction sets stored in the memory 1340, as well as accesses data stored in the memory 1340, to perform various functions of the electric toothbrush 100 and process data. Optionally, the processor 1310 may be implemented using at least one of the following hardware forms: a digital signal processing (DSP), a field-programmable gate array (FPGA), or a programmable logic array (PLA). The processor 1310 may integrate one or a combination of a central processing unit (CPU), a graphics processing unit (GPU), and a modem. The CPU primarily processes the operating system and applications; the GPU is responsible for rendering and drawing content displayed on the display; and the modem handles wireless communications. It is understood that the modem may not be integrated into the processor 1310 but implemented as a separate chip.

[0293] Among them, the memory 1340 may include a random access memory (RAM) or a read-only memory (ROM). Optionally, the memory 1340 includes a non-transitory computer-readable storage medium. The memory 1340 can be used to store instructions, programs, codes, code sets or instruction sets. The memory 1340 may include a program storage area and a data storage area, wherein the program storage area may store instructions for implementing an operating system, instructions for at least one function (such as a receiving function, a control function, a determination function, etc.), instructions for implementing the above-mentioned various method embodiments, etc.; the data storage area may store data involved in the above-mentioned various method embodiments, etc. The memory 1340 may also optionally be at least one storage device located away from the aforementioned processor 1310. As shown in Figure 13, the memory 1340 as a computer storage medium may include an operating system, a network communication module, a user interface module and program instructions.

[0294] In some possible embodiments, in the electric toothbrush shown in Figure 13, the processor 1310 can be used to call the program instructions stored in the memory 1340, and specifically perform the following operations: detect an oral cleaning instruction; determine the corresponding first drive signal and second drive signal in response to the oral cleaning instruction; based on the first drive signal, control the cleaning element of the electric toothbrush to generate a first movement, and based on the second drive signal, control the cleaning element to generate a second movement; wherein the movement directions of the first movement and the second movement are different; and output the first drive signal and the second drive signal at the same time to cause the cleaning element to perform a composite movement of the first movement and the second movement.

[0295] In some possible embodiments, the first motion includes reciprocating swinging with the length extension direction of the cleaning member as the axis; the second motion includes reciprocating movement along the length extension direction of the cleaning member.

[0296] In some possible embodiments, the first motion further includes a reciprocating motion with the length extension direction of the cleaning element as an axis.

[0297] In some possible embodiments, the vibration frequency of the first motion is equal to the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

[0298] In some possible embodiments, the swing amplitude of the first motion is smaller than or equal to the movement amplitude of the second motion; and / or the duty cycle of the first driving signal is smaller than or equal to the duty cycle of the second driving signal.

[0299] In some possible embodiments, the processor 1310 executes the simultaneous output of the first drive signal and the second drive signal, including: after outputting the first drive signal for a first duration, simultaneously outputting the first drive signal and the second drive signal; wherein the first duration is the sum of N cycle durations and a quarter cycle duration; or, the first duration is the sum of N cycle durations and three-quarters cycle durations; N is an integer greater than or equal to zero, and the cycle duration is the duration of a single complete output of the first drive signal or the second drive signal.

[0300] In some possible embodiments, the processor 1310 is further configured to execute: pausing the output of the first drive signal and the second drive signal, and outputting a single drive signal; wherein the single drive signal is the first drive signal or the second drive signal; pausing the output of the single drive signal, and again simultaneously outputting the first drive signal and the second drive signal.

[0301] In some possible embodiments, the vibration frequency of the first motion is greater than the vibration frequency of the second motion; and / or the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

[0302] In some possible embodiments, the vibration frequency of the first motion is greater than the vibration frequency of the second motion, including: the vibration frequency of the first motion is greater than or equal to twice the vibration frequency of the second motion.

[0303] In some possible embodiments, the electric toothbrush includes a position detection unit, which is used to detect the cleaning position of the cleaning member in the oral cavity; the processor 1310 executes to output the first drive signal and the second drive signal at the same time, specifically for executing: according to the cleaning position detected by the position detection unit, adjusting the first drive signal and / or the second drive signal corresponding to the cleaning position.

[0304] In some possible embodiments, the processor 1310 is further configured to execute: if it is detected that the cleaning member is not in contact with the surface to be cleaned, pausing the output of the first driving signal and the second driving signal.

[0305] In some possible embodiments, the surface to be cleaned includes the tooth side surface, and the processor 1310 is specifically used to execute the cleaning position detected by the position detection unit, and the adjustment of the first drive signal and / or the second drive signal corresponding to the cleaning position includes at least one of the following: if the cleaning position is detected to be the tooth side surface, the swing amplitude of the first motion is adjusted to be greater than the movement amplitude of the second motion; if the cleaning position is detected to be the tooth side surface, the duty cycle of the first drive signal is adjusted to be greater than the duty cycle of the second drive signal; if the cleaning position is detected to be the tooth side surface, the vibration frequency of the first motion is adjusted to be greater than the vibration frequency of the second motion; if the cleaning position is detected to be the tooth side surface, the driving frequency of the first drive signal is adjusted to be greater than the driving frequency of the second drive signal.

[0306] In some possible embodiments, the processor 1310 is specifically used to execute the adjustment of the first drive signal and / or the second drive signal corresponding to the cleaning position detected by the position detection unit, including at least one of the following: if the cleaning position is detected to be the occlusal surface, the swing amplitude of the first movement is adjusted to be smaller than the movement amplitude of the second movement; if the cleaning position is detected to be the occlusal surface, the duty cycle of the first drive signal is adjusted to be smaller than the duty cycle of the second drive signal; if the cleaning position is detected to be the occlusal surface, the vibration frequency of the first movement is adjusted to be smaller than the vibration frequency of the second movement; if the cleaning position is detected to be the occlusal surface, the driving frequency of the first drive signal is adjusted to be smaller than the driving frequency of the second drive signal.

[0307] In some possible embodiments, the cleaning position includes the tooth side surface and the occlusal surface, and the processor 1310 is specifically used to execute the cleaning position detected by the position detection unit, and the adjustment of the first drive signal and / or the second drive signal corresponding to the cleaning position includes at least one of the following: the duty cycle of the first drive signal corresponding to the tooth side surface is greater than the duty cycle of the first drive signal corresponding to the occlusal surface; the driving frequency of the second drive signal corresponding to the tooth side surface is less than the driving frequency of the second drive signal corresponding to the occlusal surface.

[0308] In some possible embodiments, the electric toothbrush also includes a bidirectional motor; the processor 1310 controls the cleaning element of the electric toothbrush to produce a first motion based on a first drive signal, and controls the cleaning element to produce a second motion based on a second drive signal, specifically for executing: based on the first drive signal, controlling the bidirectional motor to drive the cleaning element to produce a first motion, and based on the second drive signal, controlling the bidirectional motor to drive the cleaning element to produce a second motion.

[0309] The present application also provides a computer storage medium having instructions stored therein that, when executed on a computer or processor, cause the computer or processor to perform one or more steps of any of the aforementioned methods. If the various components of the electric toothbrush control device are implemented as software functional units and sold or used as independent products, they may be stored in the aforementioned storage medium.

[0310] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The above-mentioned computer program product includes one or more computer instructions. When the above-mentioned computer program instructions are loaded and executed on a computer, the above-mentioned process or function according to the embodiment of the present application is generated in whole or in part. The above-mentioned computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The above-mentioned computer instructions can be stored in a computer-readable storage medium or transmitted by the above-mentioned computer-readable storage medium. The above-mentioned computer instructions can be transmitted from a website, computer, server or data center to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The above-mentioned computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available media may be magnetic media (eg, floppy disks, hard disks, tapes), optical media (eg, digital versatile discs (DVDs)), or semiconductor media (eg, solid state disks (SSDs)).

[0311] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiments can be implemented by instructing the relevant hardware through a computer program. The program can be stored in a computer-readable storage medium. When the program is executed, it can include the processes of the embodiments of the above-mentioned methods. The aforementioned storage medium includes various media that can store program code, such as ROM, RAM, magnetic disks or optical disks. The technical features in the embodiments and implementation schemes of this application can be combined arbitrarily unless they conflict.

[0312] The above content is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. An electric toothbrush, wherein, It includes a brush handle, a circuit board, a bidirectional motor, and a brush head. The circuit board is connected to the bidirectional motor, and both the circuit board and the bidirectional motor are provided in the brush handle. The bidirectional motor is connected to the brush head; The circuit board is configured to output a first driving signal and a second driving signal; And, The bidirectional motor is configured to drive the brush head to generate a first movement relative to the brush handle based on the first driving signal; And, the bidirectional motor is configured to drive the brush head to generate a second movement relative to the brush handle based on the second driving signal; The movement directions of the first movement and the second movement are different; the circuit board outputs the first driving signal and the second driving signal simultaneously so that the brush head performs a combined movement of the first movement and the second movement.

2. The electric toothbrush according to claim 1, wherein, The bidirectional motor includes a first driving mechanism and a second driving mechanism; both the first driving mechanism and the second driving mechanism are connected to the brush head; The first driving mechanism is configured to drive the brush head to generate the first movement based on the first driving signal; The second driving mechanism is configured to drive the brush head to generate the second movement based on the second driving signal.

3. The electric toothbrush according to claim 2, wherein, The first driving mechanism is configured to drive the brush head to swing reciprocally about an axis in the extending direction of the brush head length based on the first driving signal; The second driving mechanism is configured to drive the brush head to move reciprocally along the extending direction of the brush head length based on the second driving signal.

4. The electric toothbrush according to claim 2 or 3, wherein, The first driving mechanism and the second driving mechanism are arranged along the extending direction of the brush handle.

5. The electric toothbrush according to claim 2 or 3, wherein, The bidirectional motor further includes a first output shaft and a second output shaft; the first output shaft is different from the second output shaft. The first output shaft is connected to the first driving mechanism, and the second output shaft is connected to the second driving mechanism; both the first output shaft and the second output shaft are connected to the brush head; The first output shaft is configured to drive the brush head to perform the first movement under the first driving signal; and, The second output shaft is configured to drive the brush head to perform the second movement under the second driving signal.

6. The electric toothbrush according to claim 2 or 3, wherein, The bidirectional motor further includes a third output shaft; the third output shaft is respectively connected to the first driving mechanism and the second driving mechanism; the third output shaft is connected to the brush head; The third output shaft is configured to drive the brush head to perform the first movement under the first driving signal; and, The third output shaft is configured to drive the brush head to perform the second movement under the second driving signal.

7. The electric toothbrush according to any one of claims 1 to 3, wherein, The vibration frequency of the first movement is equal to the vibration frequency of the second movement; and / or, the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

8. The electric toothbrush according to claim 7, wherein, The swing amplitude of the first movement is less than or equal to the moving amplitude of the second movement; and / or, the duty cycle of the first driving signal is less than or equal to the duty cycle of the second driving signal.

9. The electric toothbrush according to claim 7, wherein, There is a preset time difference between the output time of the first driving signal and the output time of the second driving signal; The preset time difference is the sum of the duration of N periods and a quarter of the period duration; or, the preset time difference is the sum of the duration of N periods and three quarters of the period duration; the period duration is the duration of a single complete output of the first driving signal or the second driving signal; N is an integer greater than or equal to 0.

10. The electric toothbrush according to any one of claims 1 to 3, wherein, The circuit board is further configured to: Pause the output of the first driving signal and the second driving signal, and output a single driving signal; the single driving signal is the first driving signal or the second driving signal; Pause the output of the single driving signal, and output the first driving signal and the second driving signal simultaneously again.

11. The electric toothbrush according to any one of claims 1 to 3, wherein, The vibration frequency of the first movement is greater than the vibration frequency of the second movement; and / or, the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

12. The electric toothbrush according to claim 11, wherein, The vibration frequency of the first movement being greater than the vibration frequency of the second movement includes: The vibration frequency of the first movement is greater than or equal to twice the vibration frequency of the second movement.

13. A control method for an electric toothbrush, wherein, The method includes: Detecting an oral cleaning instruction; In response to the oral cleaning instruction, determining corresponding first and second driving signals; based on the first driving signal, controlling a cleaning member of the electric toothbrush to generate a first movement, and based on the second driving signal, controlling the cleaning member to generate a second movement; the first movement and the second movement have different movement directions; Outputting the first driving signal and the second driving signal simultaneously, so that the cleaning member performs a combined movement of the first movement and the second movement.

14. The control method according to claim 13, wherein, The first movement includes a reciprocating swing with the extension direction of the cleaning member as the axis; the second movement includes a reciprocating movement along the extension direction of the cleaning member.

15. The control method according to claim 14, wherein, The vibration frequency of the first movement is equal to the vibration frequency of the second movement; and / or, the driving frequency of the first driving signal is equal to the driving frequency of the second driving signal.

16. The control method according to claim 15, wherein, The swing amplitude of the first movement is less than or equal to the movement amplitude of the second movement; and / or, the duty cycle of the first driving signal is less than or equal to the duty cycle of the second driving signal.

17. The control method according to claim 15, wherein, The simultaneously outputting the first driving signal and the second driving signal includes: After outputting the first driving signal for a first duration, outputting the first driving signal and the second driving signal simultaneously; The first duration is the sum of the duration of N periods and a quarter of the period duration; or, the first duration is the sum of the duration of N periods and three quarters of the period duration; N is an integer greater than or equal to zero, and the period duration is the duration of a single complete output of the first driving signal or the second driving signal.

18. The control method according to claim 13, wherein, The method further includes: Pausing the output of the first driving signal and the second driving signal, and outputting a single driving signal; the single driving signal is the first driving signal or the second driving signal; Pausing the output of the single driving signal, and outputting the first driving signal and the second driving signal simultaneously again.

19. The control method according to claim 14, wherein, The vibration frequency of the first movement is greater than the vibration frequency of the second movement; and / or, the driving frequency of the first driving signal is greater than the driving frequency of the second driving signal.

20. The control method according to claim 19, wherein, The vibration frequency of the first movement being greater than the vibration frequency of the second movement includes: The vibration frequency of the first movement is greater than or equal to twice the vibration frequency of the second movement.

21. The control method according to claim 14, wherein, The electric toothbrush includes a position detection unit for detecting the cleaning position of the cleaning member in the oral cavity; The simultaneous output of the first driving signal and the second driving signal includes: Adjusting the first driving signal and / or the second driving signal corresponding to the cleaning position detected by the position detection unit.

22. The control method according to claim 21, wherein, Adjusting the first driving signal and / or the second driving signal corresponding to the cleaning position detected by the position detection unit includes at least one of the following: If the detected cleaning position is the tooth side surface, adjusting the swing amplitude of the first movement to be greater than the movement amplitude of the second movement; If the detected cleaning position is the tooth side surface, adjusting the duty cycle of the first driving signal to be greater than the duty cycle of the second driving signal; If the detected cleaning position is the tooth side surface, adjusting the vibration frequency of the first movement to be greater than the vibration frequency of the second movement; If the detected cleaning position is the tooth side surface, adjusting the driving frequency of the first driving signal to be greater than the driving frequency of the second driving signal.

23. The control method according to claim 21, wherein, Adjusting the first driving signal and / or the second driving signal corresponding to the cleaning position detected by the position detection unit includes at least one of the following: If the detected cleaning position is the occlusal surface, adjusting the swing amplitude of the first movement to be less than the movement amplitude of the second movement; If the detected cleaning position is the occlusal surface, adjusting the duty cycle of the first driving signal to be less than the duty cycle of the second driving signal; If the detected cleaning position is the occlusal surface, adjusting the vibration frequency of the first movement to be less than the vibration frequency of the second movement; If the detected cleaning position is the occlusal surface, adjusting the driving frequency of the first driving signal to be less than the driving frequency of the second driving signal.

24. The control method according to claim 21, wherein, Adjusting the first driving signal and / or the second driving signal corresponding to the cleaning position detected by the position detection unit includes at least one of the following: The duty cycle of the first driving signal corresponding to the tooth side surface is greater than the duty cycle of the first driving signal corresponding to the occlusal surface; The driving frequency of the second driving signal corresponding to the tooth side surface is less than the driving frequency of the second driving signal corresponding to the occlusal surface.

25. The control method according to claim 13, wherein, The electric toothbrush further includes a bidirectional motor; controlling the cleaning member of the electric toothbrush to generate a first movement based on the first driving signal, and controlling the cleaning member to generate a second movement based on the second driving signal includes: Based on the first driving signal, control the bidirectional motor to drive the cleaning member to generate the first movement, and based on the second driving signal, control the bidirectional motor to drive the cleaning member to generate the second movement.

26. A two-way motor, wherein, Applied to the electric toothbrush, the electric toothbrush includes a cleaning member; the bidirectional motor includes a first driving mechanism and a second driving mechanism, and both the first driving mechanism and the second driving mechanism are connected to the cleaning member. The first driving mechanism is configured to drive the cleaning member to generate a first movement based on a first driving signal. The second driving mechanism is configured to drive the cleaning member to generate a second movement based on a second driving signal. The bidirectional motor operates according to the control method of any one of claims 13 to 25.

27. The bidirectional motor according to claim 26, wherein, The first driving mechanism is configured to drive the cleaning member to reciprocally swing about an axis in the extending direction of the cleaning member based on the first driving signal. The second driving mechanism is configured to drive the cleaning member to reciprocally move along the extending direction of the cleaning member based on the second driving signal.

28. A control device for an electric toothbrush, wherein, The device includes: A detection module configured to detect an oral cleaning instruction. A control module configured to, in response to the oral cleaning instruction, determine corresponding first and second driving signals; based on the first driving signal, control the cleaning member of the electric toothbrush to generate a first movement, and based on the second driving signal, control the cleaning member to generate a second movement; the movement directions of the first movement and the second movement are different. An output module configured to simultaneously output the first driving signal and the second driving signal so that the cleaning member performs a combined movement of the first movement and the second movement.

29. An electric toothbrush, wherein, Includes: A processor and a memory; The memory is configured to store a computer program, and the processor is configured to call the computer program so that the electric toothbrush executes the method of any one of claims 13 to 25.

30. A computer storage medium, wherein, The computer storage medium stores computer program instructions, and when the computer program instructions are executed, the method of any one of claims 13 to 25 is implemented.

Images