Oral care device and charging method thereof

Abstract

The embodiment of the invention provides an oral care device and a charging method of the oral care device, the oral care device comprises a main machine and a handle, the main machine comprises a fluid storage device and a pump in fluid connection with the fluid storage device, and the handle comprises a handle motor, a handle wireless charging control unit and a wireless charging receiving unit. The handle is fluidly coupled to the host; and the handle is used for identifying whether the handle is placed on the host according to an output signal of the handle wireless charging control unit, and if so, controlling to open or close the wireless charging receiving unit through the handle wireless charging control unit based on the handle electric quantity of the handle and a handle electric quantity threshold value. According to the invention, the cost of the whole machine is reduced, the design is simpler, the reliability is higher, the waste of electric energy caused by frequent charging of the battery in the existing charging scheme is avoided, the power supply is effectively saved, the use cost is reduced, the potential safety hazard is reduced, the service life is prolonged, an additional charging structure is not needed, and the use convenience is improved.

Description

Technical Field

[0001] The embodiments of this specification relate to the technical field of daily necessities, and more particularly to an oral care device and a charging method for the oral care device. Background Art

[0002] Some oral care devices combine the functions of an electric toothbrush and an electric water flosser in one. The motor rotates and vibrates at high speed, causing the brush head to vibrate at a high frequency. The fluid pump pressurizes and sprays water from the fluid reservoir to deeply clean the teeth and between teeth. This can more effectively remove dental plaque and reduce oral diseases such as gingivitis, periodontal disease, and bleeding gums.

[0003] At present, some oral care devices include a main unit and a handle, which need to be charged separately to provide power, and an additional charging structure is required, which reduces the convenience of using the oral care device. In addition, whether it is wired or wireless charging, once the handle is connected to the power source, it is continuously in a charging state, which wastes power. Moreover, continuing to charge when it is not suitable for charging increases safety risks. Moreover, the handle is frequently charged, which reduces its service life. Summary of the invention

[0004] In view of this, an embodiment of the present specification provides an oral care device. One or more embodiments of the present specification also relate to a charging method for an oral care device, a computer-readable storage medium, and a computer program product to solve the technical defects existing in the prior art.

[0005] According to a first aspect of an embodiment of the present specification, an oral care device is provided, comprising a main unit and a handle, wherein the main unit comprises a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle is fluidically connected to the main unit, the handle comprises a handle battery, a handle control unit and a wireless charging receiving unit, the handle battery is electrically connected to the handle control unit, and the handle battery is electrically connected to the wireless charging receiving unit;

[0006] The handle is used to respond to the handle charging trigger signal and control the wireless charging receiving unit to be turned on or off through the handle control unit based on the handle power and the handle power threshold of the handle.

[0007] According to a second aspect of an embodiment of the present specification, a charging method for an oral care device is provided, which is applied to the oral care device, comprising a host, a handle, the host comprising a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle fluidically connected to the host, the handle comprising a handle battery, a handle control unit and a wireless charging receiving unit, the handle battery being electrically connected to the handle control unit, the handle battery being electrically connected to the wireless charging receiving unit, comprising:

[0008] In response to the handle charging trigger signal, based on the handle power level of the handle and the handle power threshold, the wireless charging receiving unit is controlled to be turned on or off through the handle control unit.

[0009] According to a third aspect of the embodiments of this specification, a computer-readable storage medium is provided, which stores a computer program / instruction, and the steps of the above method are implemented when the computer program / instruction is executed by a processor.

[0010] According to a fourth aspect of the embodiments of this specification, a computer program product is provided, comprising a computer program / instruction, which implements the steps of the above method when executed by a processor.

[0011] An embodiment of the present specification provides an oral care device. When the handle is placed on the main unit, it is intelligently selected whether to charge the handle according to the power level of the handle, thereby avoiding the frequent charging of the battery in the existing charging scheme, which leads to waste of electric energy, effectively saving power, reducing the cost of use and safety hazards, and prolonging the service life. Moreover, the main unit is used to charge the handle, and there is no need to set up an additional charging structure, thereby improving convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is one of the structural schematic diagrams of an oral care device provided by one embodiment of this specification;

[0013] Figure 2 This is the second structural schematic diagram of an oral care device provided by an embodiment of this specification;

[0014] Figure 3 This is the third structural schematic diagram of an oral care device provided by an embodiment of this specification;

[0015] Figure 4 This is a fourth structural diagram of an oral care device provided by an embodiment of this specification;

[0016] Figure 5 This is a fifth structural diagram of an oral care device provided by an embodiment of this specification;

[0017] Figure 6 is a flow chart of a charging method for an oral care device provided by one embodiment of the present specification;

[0018] Figure 7 It is a flow chart of a charging method for an oral care device provided in one embodiment of the present specification. DETAILED DESCRIPTION

[0019] Many specific details are described in the following description to facilitate a full understanding of this specification. However, this specification can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of this specification, so this specification is not limited to the specific implementation disclosed below.

[0020] The terms used in one or more embodiments of this specification are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of this specification. The singular forms of "a", "said" and "the" used in one or more embodiments of this specification and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of this specification refers to and includes any or all possible combinations of one or more associated listed items.

[0021] It should be understood that although the terms first, second, etc. may be used to describe various information in one or more embodiments of this specification, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of this specification, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0022] In addition, it should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in one or more embodiments of this specification are all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data must comply with the relevant laws, regulations and standards of the relevant countries and regions, and provide corresponding operation entrances for users to choose to authorize or refuse.

[0023] First, the terms involved in one or more embodiments of this specification are explained.

[0024] Wireless charging: A technology that uses electromagnetic induction, electromagnetic resonance or other wireless transmission methods to provide contactless charging for battery-powered devices.

[0025] Hall effect: When current passes through a conductor placed in a magnetic field, an electromagnetic induction phenomenon is generated on both sides of the conductor, causing a voltage difference perpendicular to the direction of the current and the magnetic field.

[0026] Hall element: A semiconductor sensor element based on the Hall effect. Its working principle is that when a constant working voltage is applied to the Hall element, if the Hall element is in an external magnetic field, a potential difference will be generated on both sides perpendicular to the current and magnetic field directions, generating a Hall signal. The Hall element converts the strength of the magnetic field into an electrical signal output of the Hall signal, realizing magnetic field detection, position sensing, and current measurement. Hall elements include gallium arsenide (GaAs) Hall elements, indium antimonide (InSb) Hall elements, and silicon (Si)-based integrated Hall elements.

[0027] In this specification, an oral care device is provided. This specification also relates to a charging method for the oral care device, a computer-readable storage medium, and a computer program product, which are described in detail one by one in the following embodiments.

[0028] See also Figure 1 , Figure 1 FIG. 1 shows one of the structural schematic diagrams of an oral care device provided by an embodiment of the present specification, such as Figure 1 As shown:

[0029] The oral care device 10 of the embodiment of the present specification includes a host 110 and a handle 120. The host 110 includes a fluid reservoir 1110 and a pump 1120 fluidly connected to the fluid reservoir 1110. The handle 120 is fluidically connected to the host 110. The handle 120 includes a handle battery 1210, a handle control unit 1220, and a wireless charging receiving unit 1230. The handle battery 1210 is electrically connected to the handle control unit 1220, and the handle battery 1210 is electrically connected to the wireless charging receiving unit 1230.

[0030] The handle 120 is used to respond to the handle charging trigger signal and control the wireless charging receiving unit 1230 to be turned on or off through the handle control unit 1220 based on the handle power level and the handle power threshold of the handle 120.

[0031] The host 110 is the core control component of the oral care device 10, and has a host power supply and a fluid system built in. The host power supply can be an external power supply, and the fluid system includes a fluid reservoir 1110 and a pump 1120 fluidly connected to the fluid reservoir 1110. The host 110 operates the pump 1120 to transport the fluid stored in the fluid reservoir 1110 to the oral care head (brush head or punch head) of the handle 120 to achieve the oral care function.

[0032] The handle 120 is a user oral interaction component of the oral care device 10, and is equipped with a handle battery 1210, a handle control unit 1220, and a wireless charging receiving unit 1230. An oral care head is disposed at one end of the handle 120, and the other end is fluidically connected to the host 110 via a fluid connection tube. Optionally, the oral care head can be replaced according to the oral care function. For example, when the tooth brushing function is realized, the brush head can be replaced. For another example, when the tooth flushing function is realized, the tooth flushing head can be replaced. For another example, a flushing integrated care head with an integrated brush head and a tooth flushing head can be replaced.

[0033] The handle 120 can be adjustably connected to the host 110 via a magnetic attachment structure, which is a magnet or a structure that can be attracted by magnetic attraction. Optionally, the handle 120 can also be detachably connected to the host 110 by hanging or buckling.

[0034] The fluid reservoir 1110 is a component of the fluid system placed in the host 110, responsible for storing fluid, and the fluid is transmitted to the handle 120 through the pump 1120 to reach the oral care head. The fluid can be water, cleaning liquid or other liquid substances for cleaning the mouth or teeth.

[0035] The pump 1120 is a component of the fluid system built into the host 110, and is responsible for pumping the fluid from the fluid reservoir 1110 to the handle 120. The pump 1120 is usually operated in an electric manner to ensure that the fluid can flow stably and effectively.

[0036] The handle battery 1210 is a power source inside the handle 120, and the handle battery 1210 provides power support for the oral care function of the handle 120. The handle battery 1210 can be a rechargeable lithium-ion battery or other types of batteries, and its capacity determines the use time and endurance of the handle 120.

[0037] The handle control unit 1220 is a control unit in the handle 120 for monitoring and controlling the operating state of the handle 120, and is responsible for coordinating and executing various operation commands. The handle control unit 1220 includes, but is not limited to, integrated circuits such as a microcontroller unit (MCU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a digital signal processor (DSP). The functions of the handle control unit 1220 include, but are not limited to, controlling the opening or closing of other handle elements, responding to user input, regulating the operating speed of the handle motor, and controlling the fluid delivery rate. For example, control the opening or closing of the wireless charging receiving unit 1230. For another example, for the control of the oral care mode, when different oral care modes are selected through the buttons on the handle 120, the handle control unit 1220 identifies and processes the switching signal of the oral care mode and adjusts the working state of the handle motor.

[0038] The wireless charging receiving unit 1230 is a unit built into the handle 120 in the wireless charging module of the oral care device 10, which allows the handle 120 to be charged by wireless charging. When the handle 120 is placed on the host 110, the wireless charging receiving unit 1230 receives the electromagnetic energy emitted by the host 110 and converts it into current to charge the handle battery 1210.

[0039] The handle charging trigger signal is a trigger signal instruction indicating that the handle 120 needs to be charged. The handle charging trigger signal is automatically generated when a preset trigger condition is met, for example, when the handle power is lower than a preset threshold, or when the handle 120 is placed on the host 110, or when the distance between the handle 120 and the host 110 is less than the trigger distance.

[0040] The handle battery 1210 is electrically connected to the handle control unit 1220 to provide a working voltage for the handle control unit 1220. The handle battery 1210 is electrically connected to the wireless charging receiving unit 1230 to complete wireless charging. The handle control unit 1220 is electrically connected to the wireless charging receiving unit 1230 to control the opening or closing of the wireless charging receiving unit 1230.

[0041] The handle power level is the current remaining power of the handle battery of the handle 120. The level of the handle power level directly affects the remaining usage time of the handle 120. Optionally, the handle power level is continuously monitored, and the handle power level is displayed to the user through an LED light or a display screen on the handle 120 so that the user can intuitively understand the remaining usage time.

[0042] The handle power threshold is a charging threshold preset for the handle power, and the handle power threshold is used to intelligently select whether to charge the handle 120, thereby avoiding frequent charging of the existing rechargeable battery. For example, the handle power threshold is set to 30%, and for another example, the handle power threshold is set to 1000 mAh.

[0043] Optionally, the handle control unit 1220 is used to control the wireless charging receiving unit 1230 to be turned on or off. One optional method is to control the handle wireless charging control unit through the handle control unit 1220 to control the wireless charging receiving unit 1230 to be turned on or off. Another optional method is to control the MOS switch through the handle control unit 1220 to control the wireless charging receiving unit 1230 to be turned on or off. Another optional method is to control the relay through the handle control unit 1220 to control the wireless charging receiving unit 1230 to be turned on or off. Another optional method is to control the pulse width modulation controller through the handle control unit 1220 to control the wireless charging receiving unit 1230 to be turned on or off. No limitation is made here.

[0044] Optionally, multiple handle states are preset, including: standby state, charging state, fully charged state and abnormal state;

[0045] The handle 120 is used to respond to the handle charging trigger signal, determine the handle state based on the handle power of the handle 120 and the handle power threshold, and control the wireless charging receiving unit 1230 to be turned on or off through the handle control unit 1220 according to the handle state.

[0046] In the embodiments of the present specification, a wireless charging mechanism is used to detect whether the handle 120 is placed on the host 110, thereby reducing the use of sensors, reducing the cost of the entire machine, and making the design simpler and more reliable. Moreover, when the handle 120 is placed on the host 110, it is intelligently selected whether to charge the handle 120 based on the power of the handle, thereby avoiding frequent charging of the battery in the existing charging solution, resulting in a waste of electrical energy, effectively saving power, reducing the cost of use and safety hazards, and increasing the service life. Moreover, when the host 110 is used to charge the handle, there is no need to set up an additional charging structure, thereby improving convenience of use.

[0047] In an optional embodiment of the present specification, the handle 120 is also used to control the wireless charging receiving unit 1230 to be turned on through the handle control unit 1220 when the handle power of the handle 120 is lower than the handle power threshold.

[0048] Optionally, multiple handle states are preset, including: standby state, charging state, fully charged state and abnormal state;

[0049] The handle 120 is used to respond to the handle charging trigger signal, determine that the handle state is a charging state based on the handle power of the handle 120 and the handle power threshold, and control the wireless charging receiving unit 1230 to be turned on through the handle control unit 1220 according to the charging state.

[0050] Exemplarily, in response to the handle charging trigger signal, when the handle 120 detects that the handle power is lower than the handle power threshold (30% power), the handle control unit 1220 controls the wireless charging receiving unit 1230 to turn on, and the handle will enter the charging state.

[0051] In the embodiment of this specification, the oral care device 10 achieves a more energy-saving, safe and user-friendly charging experience through intelligent wireless charging management and efficient handle status monitoring. In response to the handle charging trigger signal, when the power of the handle 120 is lower than the preset handle power threshold, the handle control unit 1220 will automatically turn on the wireless charging receiving unit 1230, so that charging is only performed when necessary, avoiding unnecessary energy loss. This intelligent charging strategy not only saves energy, reduces the cost of use, safety hazards, but also increases the service life.

[0052] In an optional embodiment of the present specification, the handle 120 is also used to control the wireless charging receiving unit 1230 to be turned off through the handle control unit 1220 when the handle power of the handle 120 is higher than the handle power threshold.

[0053] Optionally, multiple handle states are preset, including: standby state, charging state, fully charged state and abnormal state;

[0054] The handle 120 is used to respond to the handle charging trigger signal, determine that the handle state is a full charging state based on the handle power of the handle 120 and the handle power threshold, and control the wireless charging receiving unit 1230 to be turned off through the handle control unit 1220 according to the full charging state.

[0055] Exemplarily, in response to the handle charging trigger signal, when the handle 120 detects that the handle power is higher than the handle power threshold (30% power), the handle control unit 1220 controls to turn off or not turn on the wireless charging receiving unit 1230, and the handle 120 will enter a prohibited charging state. It should be noted that in response to the handle charging trigger signal, that is, when the handle is placed on the host, the handle 120 compares the handle power and the handle power threshold. If the handle power is lower than the handle power threshold, the wireless charging receiving unit 1230 is turned on; if the handle power is higher than the handle power threshold, the wireless charging receiving unit 1230 is not turned on; after the wireless charging receiving unit 1230 is turned on, the handle 120 will continue to be charged until it is fully charged, rather than immediately turning off the wireless charging receiving unit 1230 when the handle power is charged to the handle power threshold.

[0056] In the embodiment of this specification, the oral care device 10 achieves a more energy-saving, safe and user-friendly charging experience through intelligent wireless charging management and efficient handle status monitoring. In response to the handle charging trigger signal, when the power of the handle 120 is higher than the preset handle power threshold, the handle control unit 1220 will turn off or not turn on the wireless charging receiving unit 1230 to prevent overcharging, which not only protects the handle battery 1210 from damage, but also avoids potential fire and other safety risks, and avoids unnecessary energy loss. This intelligent charging strategy not only reduces the cost of use and safety hazards, but also increases the service life.

[0057] Figure 2 FIG. 2 shows a second structural diagram of an oral care device provided by an embodiment of the present specification. Figure 2 As shown:

[0058] In an optional embodiment of the present specification, the wireless charging receiving unit 1230 further includes a handle wireless charging control unit 1232;

[0059] The handle 120 is also used to send a first output signal to the handle wireless charging control unit 1232 through the handle control unit 1220 to control the activation of the wireless charging receiving unit 1230 when the handle power of the handle 120 is lower than the handle power threshold.

[0060] The handle wireless charging control unit 1232 is a control unit for directly controlling the handle wireless charging control unit 1230, and is responsible for receiving and processing the signal instructions sent by the handle control unit 1220. The handle wireless charging control unit 1232 includes but is not limited to: a microcontroller unit (MCU), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a digital signal processor (DSP) and other integrated circuits. The functions of the handle wireless charging control unit 1232 include but are not limited to: directly controlling the opening or closing of the wireless charging receiving unit 1230.

[0061] The first output signal is a signal instruction sent by the handle control unit 1220 to the handle wireless charging control unit 1232, which is used to control the opening of the wireless charging receiving unit 1230. The first output signal can be a high level signal, a low level signal, or a signal with specific signal characteristics (for example, a fixed frequency, a specific power), which is not limited here.

[0062] Exemplarily, in response to the handle charging trigger signal, when the handle 120 detects that the handle power level is lower than the handle power threshold (30% power), the handle control unit 1220 sends a first output signal to the handle wireless charging control unit 1232 to control the wireless charging receiving unit 1230 to turn on, and the handle will enter the charging state.

[0063] Optionally, the wireless charging receiving unit 1230 further includes a wireless charging receiving coil.

[0064] The wireless charging receiving coil is an electromagnetic induction coil in the wireless charging receiving unit 1230 for receiving electromagnetic waves emitted by the wireless charging transmitter. The wireless charging receiving coil converts the electromagnetic waves into current to charge the handle battery 1210. The wireless charging receiving coil is usually installed inside the handle, close to the housing of the handle 120. For example, when the handle 120 is placed on the host 110, the host 110 will emit electromagnetic waves, and the wireless charging receiving coil will capture these electromagnetic waves and convert them into current to charge the handle battery. When the handle power is lower than the preset power threshold, the handle control unit 1220 will send a first output signal to the handle wireless charging control unit 1232 to control the wireless charging receiving unit 1230 to be turned on. At this time, the wireless charging receiving coil can receive electromagnetic waves.

[0065] Optionally, a signal switch is electrically connected between the wireless charging receiving coil and the handle battery 1210 , and the signal switch is controlled by a signal sent by the wireless charging control unit 1232 . The first output signal turns on the signal switch to form an electrical path, and the wireless charging receiving coil transmits electrical energy to the handle battery 1210 .

[0066] In the embodiment of the present specification, the first output signal is sent to the handle wireless charging control unit 1232 through the handle control unit 1220 to accurately and stably control the activation of the wireless charging receiving unit 1230, accurately and stably ensure efficient and safe charging, avoid energy waste and overcharging, and improve battery life.

[0067] In an optional embodiment of the present specification, when the handle power of the handle 120 is equal to the handle power threshold, the handle control unit 1220 controls the wireless charging receiving unit 1230 to be turned on. In an optional embodiment of the present specification, when the handle power of the handle 120 is equal to the handle power threshold, the handle control unit 1220 controls the wireless charging receiving unit 1230 not to be turned on.

[0068] In an optional embodiment of the present specification, the wireless charging receiving unit 1230 further includes a handle wireless charging control unit 1232;

[0069] The handle 120 is also used to send a second output signal to the handle wireless charging control unit 1232 through the handle control unit 1220 to control the shutdown of the wireless charging receiving unit 1230 when the handle power of the handle 120 is higher than the handle power threshold.

[0070] The second output signal is a signal instruction sent by the handle control unit 1220 to the handle wireless charging control unit 1232, which is used to control the shutdown of the wireless charging receiving unit 1230. The second output signal can be a high level signal, a low level signal, or a signal with specific signal characteristics (for example, a fixed frequency, a specific power), which is not limited here. It should be noted that the first output signal and the second output signal can be clearly distinguished. For example, the first output signal is a high level and the second output signal is a low level. For another example, the first output signal is a fixed frequency of f, and the second output signal is a fixed frequency of 2f.

[0071] Exemplarily, in response to the handle charging trigger signal, when the handle 120 detects that the handle power level is higher than the handle power threshold (30% power), the handle control unit 1220 sends a second output signal to the handle wireless charging control unit 1232 to control the wireless charging receiving unit 1230 to be turned off or not turned on, and the handle 120 will enter a charging prohibited state.

[0072] Optionally, the wireless charging receiving unit 1230 further includes a wireless charging receiving coil.

[0073] Optionally, a signal switch is electrically connected between the wireless charging receiving coil and the handle battery 1210 , and the signal switch is controlled by a signal sent by the wireless charging control unit 1232 . The second output signal turns off the signal switch, cutting off the electrical path, and the wireless charging receiving coil cannot transmit electrical energy to the handle battery 1210 .

[0074] In the embodiment of this specification, the handle control unit 1220 sends a second output signal to the handle wireless charging control unit 1232, accurately and stably controls the closing of the wireless charging receiving unit 1230, accurately and stably prevents overcharging, accurately and stably protects the handle battery 1210 from damage, accurately and stably avoids potential fire and other safety risks, and avoids unnecessary energy loss. Accurately and stably reduces the use cost and safety hazards, and also increases the service life.

[0075] Figure 3 FIG. 3 shows a structural diagram of an oral care device provided by an embodiment of the present specification. Figure 3 As shown:

[0076] In one embodiment of the present specification, the host 110 further includes a wireless charging transmitting unit 1130;

[0077] The handle 120 is also used to generate a handle charging trigger signal when the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is smaller than the trigger distance.

[0078] The wireless charging transmitting unit 1130 is a unit built into the host 110 in the wireless charging module of the oral care device 10, which allows the host 110 to charge the handle 120 by wireless charging. When the handle 120 is placed on the host 110, the wireless charging transmitting unit 1130 will transmit electromagnetic energy to the handle 120, and the wireless charging receiving unit 1230 will convert it into current to charge the handle battery 1210.

[0079] The wireless charging transmitter unit 1130 is a unit built into the host 110 in the wireless charging module of the oral care device 10, which provides wireless charging energy for the handle, and the handle 120 is charged by wireless charging. Optionally, the wireless charging transmitter unit 1130 can be always running, or it can be run in response to the host charging trigger signal, which is not limited here.

[0080] The distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is the straight-line distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 when the handle 120 is placed on the host 110. When the handle 120 is placed on the host 110, this distance can be fixed or within a small range of variation allowed by the design. This distance is a key parameter that determines the efficiency and safety of wireless charging, and directly affects the effectiveness of energy transmission and the working stability of the system. When the distance is less than the preset trigger distance, the handle charging trigger signal is activated to ensure the timely start of the charging process, while avoiding unnecessary energy loss and potential safety hazards, and determining the overall functional performance of the oral care device 10.

[0081] Exemplarily, the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is 8 mm, which is smaller than the trigger distance of 10 mm, and generates a handle charging trigger signal.

[0082] Optionally, the wireless charging receiving unit 1230 includes a Hall element, and the wireless charging transmitting unit 1130 includes a magnetic element;

[0083] Alternatively, the wireless charging receiving unit 1230 includes a magnetic element, and the wireless charging transmitting unit 1130 includes a Hall element;

[0084] The distance sensing capability of the Hall effect is used to determine whether the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is smaller than the trigger distance.

[0085] Optionally, the wireless charging transmitting unit 1130 further includes a wireless charging transmitting coil, and the wireless charging receiving unit 1230 further includes a wireless charging receiving coil;

[0086] Correspondingly, the handle 120 is also used to generate a handle charging trigger signal when the distance between the wireless charging transmitting coil and the wireless charging receiving coil is less than the trigger distance.

[0087] The wireless charging transmitting coil is an electromagnetic induction coil used to transmit electromagnetic waves in the wireless charging transmitting unit 1130. The wireless charging transmitting coil converts the host power into electromagnetic waves for transmission to charge the handle battery 1210. The wireless charging transmitting coil is usually installed inside the host, close to the housing of the host 110. For example, when the handle 120 is placed on the host 110, the wireless charging transmitting coil converts the current of the external power supply into electromagnetic waves for transmission, and the wireless charging receiving coil captures these electromagnetic waves and converts them into current to charge the handle battery.

[0088] Exemplarily, the distance between the wireless charging transmitting coil and the wireless charging receiving coil is 6 mm, which is smaller than the trigger distance of 10 mm, and generates a handle charging trigger signal.

[0089] In the embodiments of the present specification, a handle charging trigger signal is automatically triggered according to the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130, thereby realizing the automatic wireless charging function under distance perception without the need to set additional buttons, thereby improving the ease of use and the degree of automation, while also reducing the physical wear and failure rate of the equipment, and making the operation of the entire oral care device 10 smoother, thereby enhancing the user experience.

[0090] In one embodiment of the present specification, the host 110 further includes a wireless charging transmitting unit 1130;

[0091] The handle 120 is also used to generate a handle charging shutdown signal when the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is greater than the trigger distance. In response to the handle charging shutdown signal, the wireless charging receiving unit 1230 is controlled to be shut down through the handle control unit 1220.

[0092] The handle charging shutdown signal is a trigger signal instruction indicating that the wireless charging of the handle 120 needs to be turned off. The handle charging shutdown signal is automatically generated when the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is greater than the trigger distance.

[0093] Exemplarily, the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is 12 mm, which is larger than the trigger distance of 10 mm. A handle charging shutdown signal is generated. In response to the handle charging shutdown signal, the handle control unit 1220 controls the shutdown of the wireless charging receiving unit 1230, and the handle 120 enters a charging prohibited state.

[0094] Optionally, the wireless charging receiving unit 1230 includes a Hall element, and the wireless charging transmitting unit 1130 includes a magnetic element;

[0095] Alternatively, the wireless charging receiving unit 1230 includes a magnetic element, and the wireless charging transmitting unit 1130 includes a Hall element;

[0096] The distance sensing capability of the Hall effect is used to determine whether the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130 is greater than the trigger distance.

[0097] Optionally, the wireless charging transmitting unit 1130 further includes a wireless charging transmitting coil, and the wireless charging receiving unit 1230 further includes a wireless charging receiving coil.

[0098] Correspondingly, it is also used to generate a handle charging shutdown signal when the distance between the wireless charging transmitting coil and the wireless charging receiving coil is greater than the trigger distance. In response to the handle charging shutdown signal, the wireless charging receiving unit 1230 is controlled to be turned off through the handle control unit 1220.

[0099] Exemplarily, the distance between the wireless charging transmitting coil and the wireless charging receiving coil is 12 mm, which is larger than the trigger distance of 10 mm. A handle charging shutdown signal is generated. In response to the handle charging shutdown signal, the handle control unit 1220 controls the shutdown of the wireless charging receiving unit 1230, and the handle 120 enters a charging prohibited state.

[0100] In the embodiments of the present specification, a handle charging shutdown signal is automatically triggered according to the distance between the wireless charging receiving unit 1230 and the wireless charging transmitting unit 1130, thereby realizing an automatic power-off function, ensuring the safety and energy saving of the equipment without human intervention, and improving the intelligence level and energy efficiency of the oral care device 10.

[0101] Figure 4 FIG. 4 shows a structural diagram of an oral care device provided by an embodiment of the present specification. Figure 4 As shown:

[0102] In an optional embodiment of the present specification, the host 110 further includes a host control unit 1140 and a wireless charging transmitting unit 1130;

[0103] The host 110 is used to detect the output signal of the wireless charging transmitting unit 1130 through the host control unit 1140 to determine whether the handle 120 is placed on the host 110. If so, the host control unit 1140 controls the working state of the oral care device 10 to be closed.

[0104] The host control unit 1140 is a control unit in the host 110 for monitoring and controlling the operating state of the host 110 and / or the handle 120, and is responsible for coordinating and executing various operation commands. The host control unit 1140 includes, but is not limited to, integrated circuits such as a microcontroller unit (MCU), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a digital signal processor (DSP). The functions of the host control unit 1140 include, but are not limited to, controlling the opening or closing of other host components, controlling the opening or closing of handle components, controlling the operation of the pump 1120, controlling the operation of the handle motor, detecting the output signal of the wireless charging transmitter unit 1130, and controlling the fluid delivery rate. For example, control the opening or closing of the working state of the oral care device 10. For another example, for the control of the oral care mode, when different oral care modes are selected through the buttons on the host 110, the host control unit 1140 identifies and processes the switching signal of the oral care mode and adjusts the working state of the pump 1120.

[0105] The output signal of the wireless charging transmitting unit 1130 refers to the wireless charging signal transmitted by the wireless charging transmitting unit 1130, and has different output signals depending on whether it is received by the wireless charging receiving unit 1230, wherein one output signal is used to indicate that the host 110 is wirelessly charging the handle 120. Since wireless charging requires the handle 120 to be placed on the host 110, by detecting the output signal of the wireless charging transmitting unit 1130, it can not only be indicated whether the host 110 is wirelessly charging the handle 120, but also be determined whether the handle 120 is placed on the host 110.

[0106] Optionally, the host control unit 1140 can be used to control the working state of the oral care device 10 to be shut down. The working state of the host 110 or the handle 120 can be detected, and according to the working state, a shutdown signal can be sent to the host 110 or the handle 120 to shut down the pump 1120 or the handle motor. The host control unit 1140 can be used to control the working state of the oral care device 10 to be shut down. The host control unit 1140 can be used to control the working state of the oral care device 10 to be shut down without detecting the working state of the host 110 or the handle 120. As long as it is determined that the handle 120 is placed on the host 110, a shutdown signal can be sent to the host 110 or the handle 120 to shut down the pump 1120 or the handle motor.

[0107] The host control unit 1140 is used to control the working state of the oral care device 10 to be shut down. One optional method is to control the pump 1120 to be shut down through the host control unit 1140. Another optional method is to control the handle motor to be shut down through the host control unit 1140. Another optional method is to control the power supply of the oral care device through the host control unit 1140, wherein the power supply of the oral care device includes but is not limited to: the external power supply of the host 110 and the handle battery 1210.

[0108] In the embodiment of the present specification, when the handle 120 is placed on the host 110, the working state of the oral care device 10 is automatically controlled to be shut down, ensuring smooth switching of the charging and operating states of the oral care device 10, ensuring the safety of the device, and achieving intelligent energy saving.

[0109] Figure 5 FIG. 5 shows a structural diagram of an oral care device provided by an embodiment of the present specification. Figure 5 As shown:

[0110] In an optional embodiment of the present specification, the handle 120 further includes a handle data transceiver unit 1240 and a handle motor 1250, and the host 110 further includes a host data transceiver unit 1150;

[0111] The handle 120 is also used to send the working status of the handle 120 to the host data transceiver unit 1150 through the handle data transceiver unit 1240;

[0112] The host 110 is further used to receive the working state of the handle motor through the host data transceiver unit 1150. When the working state of the handle 120 is the brushing state, the host control unit 1140 detects the output signal of the wireless charging transmitting unit 1130 to determine whether the handle 120 is placed on the host 110. If so, the host control unit 1140 generates a motor shutdown signal, and sends the motor shutdown signal to the handle data transceiver unit 1240 through the host data transceiver unit 1150.

[0113] The handle 120 is also used to receive a motor shut-off signal through the handle data transceiver unit 1240 , and control the handle motor 1250 to be shut off through the handle control unit 1220 .

[0114] The handle data transceiver unit 1240 is a data communication module built into the handle 120, used to send and receive data, including but not limited to: a Bluetooth data transceiver unit, a WiFi data transceiver unit, a 2.4G data transceiver unit, a near-field data transceiver unit and a cable data transceiver unit.

[0115] The handle motor 1250 is a motor inside the handle 120, which is mainly used to drive the action of the oral care head, such as vibrating the brush head in the brushing mode or driving the water flow in the flushing mode. It is one of the main power sources of the oral care device 10 and is used to perform the actual oral cleaning task.

[0116] The host data transceiver unit 1150 is a data communication module built into the host 110 for sending and receiving data, including but not limited to: a Bluetooth data transceiver unit, a WiFi data transceiver unit, a 2.4G data transceiver unit, a near-field data transceiver unit, and a cable data transceiver unit.

[0117] The working state of the handle 120 is the operating mode in which the handle 120 is currently working, including but not limited to: brushing state, flushing state and other specific oral care modes. This state reflects the task that the handle 120 is currently performing, such as cleaning teeth or flushing the mouth.

[0118] The brushing state is the brushing mode in which the handle 120 is currently working. At this time, the handle motor 1250 will vibrate, driving the brush head to vibrate to help remove dental plaque and food residues.

[0119] The motor off signal is a signal instruction for controlling the handle motor 1250 to be turned off, and is sent by the host 110 to the handle data transceiver unit 1240 through the host data transceiver unit 1150 to control the handle 120 to turn off the handle motor 1250. When the handle 120 is placed on the host 110 for charging, the host control unit 1140 generates such a signal to ensure that the handle motor 1250 stops working in time, saving energy and protecting the device.

[0120] Optionally, it is determined whether the handle 120 is placed on the host 110, and if not, the handle 120 continues to maintain the brushing state.

[0121] The handle control unit 1220 is used to control the handle motor 1250 to be turned off. One optional method is to control the handle motor control unit through the handle control unit 1220 to control the handle motor 1250 to be turned off. Another optional method is to control the MOS switch through the handle control unit 1220 to control the handle motor 1250 to be turned off. Another optional method is to control the relay through the handle control unit 1220 to control the handle motor 1250 to be turned off. Another optional method is to control the pulse width modulation controller through the handle control unit 1220 to control the handle motor 1250 to be turned off. No limitation is made here.

[0122] Exemplarily, the host 110 is connected to an external power source, and the wireless charging transmitting unit is always in an open working state. At this time, if the handle 120 is in a brushing state, when the handle 120 is placed on the host 110, the handle 120 sends the working state of the handle 120 to the host data transceiver unit 1150 through the handle data transceiver unit 1240. The host 110 receives the working state of the handle motor through the host data transceiver unit 1150, and the working state of the handle 120 is a brushing state. The host control unit 1140 detects the output signal of the wireless charging transmitting unit 1130, determines that the handle 120 has been placed on the host 110, generates a motor off signal through the host control unit 1140, and sends the motor off signal to the handle data transceiver unit 1240 through the host data transceiver unit 1150. The handle 120 receives the motor off signal through the handle data transceiver unit 1240, and controls the handle motor 1250 to be turned off through the handle control unit 1220.

[0123] In the embodiment of this specification, when the handle 120 is placed on the host 110, the handle motor 1250 is automatically controlled to be turned off through signal transmission, ensuring smooth switching of the charging and brushing states of the oral care device 10, ensuring the safety of the device, and achieving intelligent energy saving.

[0124] In an optional embodiment of the present specification, the host 110 is also used to detect the output signal of the wireless charging transmitting unit 1130 through the host control unit 1140 when the working state of the host 110 is the tooth flushing state, to determine whether the handle 120 is placed on the host 110, and if so, to control the pump 1120 to be turned off through the host control unit 1140.

[0125] The teeth flushing state is the teeth flushing mode in which the host 110 is currently working. At this time, the pump 1120 will transport the fluid stored in the fluid reservoir 1110 to the oral care head of the handle 120 and spray it out under pressure to help remove dental plaque.

[0126] Optionally, it is determined whether the handle 120 is placed on the host 110, and if not, the host 110 continues to maintain the teeth flushing state.

[0127] The host control unit 1140 is used to control the pump 1120 to be turned off. One optional method is to control the pump control unit through the host control unit 1140 to control the pump 1120 to be turned off. Another optional method is to control the MOS switch through the host control unit 1140 to control the pump 1120 to be turned off. Another optional method is to control the relay through the host control unit 1140 to control the pump 1120 to be turned off. Another optional method is to control the pulse width modulation controller through the host control unit 1140 to control the pump 1120 to be turned off. No limitation is made here.

[0128] Exemplarily, the host 110 is connected to an external power source, and the wireless charging transmitting unit is always in an on working state. At this time, if the host 110 is in a tooth flushing state, when the handle 120 is placed on the host 110, the working state of the host 110 is the tooth flushing state, and the host control unit 1140 detects the output signal of the wireless charging transmitting unit 1130 to determine that the handle 120 has been placed on the host 110, and the host control unit 1140 controls the pump 1120 to be turned off.

[0129] In the embodiment of the present specification, when the handle 120 is placed on the host 110, the pump 1120 is automatically controlled to be turned off, ensuring smooth switching between the charging and flushing states of the oral care device 10, ensuring the safety of the device, and achieving intelligent energy saving.

[0130] See also Figure 6 , Figure 6 A flow chart of a charging method for an oral care device provided by an embodiment of the present specification is shown. The method is applied to the oral care device, including a host and a handle. The host includes a fluid reservoir and a pump fluidly connected to the fluid reservoir. The handle is fluidly connected to the host. The handle includes a handle battery, a handle control unit and a wireless charging receiving unit. The handle battery is electrically connected to the handle control unit, and the handle battery is electrically connected to the wireless charging receiving unit. The following specific steps are included:

[0131] Step 602: In response to the handle charging trigger signal, based on the handle power level of the handle and the handle power threshold, the handle control unit is controlled to turn on or off the wireless charging receiving unit.

[0132] The embodiments of this specification are similar to the above Figure 1-Figure 5 The embodiment of the specification is based on the same inventive concept, and the specific content of step 602 can be found in the above embodiment of the specification, which will not be repeated here.

[0133] In the embodiments of the present specification, a wireless charging mechanism is used to detect whether the handle is placed on the host, thereby reducing the use of sensors, reducing the cost of the entire machine, and making the design simpler and more reliable. Moreover, when the handle is placed on the host, it is intelligently selected whether to charge the handle based on the power level of the handle, thereby avoiding frequent charging of the battery in existing charging solutions, resulting in waste of electrical energy, effectively saving power, reducing use costs and safety hazards, and increasing service life. Furthermore, when the host is used to charge the handle, there is no need to set up an additional charging structure, thereby improving ease of use.

[0134] In an optional embodiment of the present specification, the handle further includes a handle data transceiver unit and a handle motor, the host further includes a host data transceiver unit, a host control unit and a wireless charging transmitter unit, and the method further includes the following specific steps:

[0135] The working status of the handle is sent to the host data transceiver unit through the handle data transceiver unit;

[0136] The host data transceiver unit receives the working state of the handle motor, and when the working state of the handle is the tooth brushing state, the host control unit detects the output signal of the wireless charging transmitter unit to determine whether the handle is placed on the host;

[0137] If so, a motor shut-off signal is generated through the host control unit;

[0138] Sending a motor shut-off signal to the handle data transceiver unit via the host data transceiver unit;

[0139] The motor shut-off signal is received through the handle data transceiver unit, and the handle motor is controlled to be shut off through the handle control unit.

[0140] The embodiments of this specification are similar to the above Figure 1-Figure 5 The embodiment of the specification is based on the same inventive concept, and the specific contents can be found in the above embodiment of the specification, which will not be repeated here.

[0141] In the embodiments of this specification, when the handle is placed on the main unit, the handle motor is automatically controlled to be turned off through signal transmission, thereby ensuring smooth switching between the charging and brushing states of the oral care device, ensuring the safety of the device, and achieving intelligent energy saving.

[0142] In an optional embodiment of the present specification, the host further includes a host control unit, a host control unit and a wireless charging transmitting unit, and the method further includes the following specific steps:

[0143] When the main unit is in the tooth flushing state, the main unit control unit detects the output signal of the wireless charging transmitter unit to determine whether the handle is placed on the main unit;

[0144] If so, the host control unit controls the pump to shut down.

[0145] The embodiments of this specification are similar to the above Figure 1-Figure 5 The embodiment of the specification is based on the same inventive concept, and the specific contents can be found in the above embodiment of the specification, which will not be repeated here.

[0146] In the embodiments of the present specification, when the handle is placed on the main unit, the pump is automatically controlled to shut down, thereby ensuring smooth switching between the charging and flushing states of the oral care device, ensuring the safety of the device, and achieving intelligent energy saving.

[0147] Figure 7 A schematic diagram of a charging method for an oral care device provided in one embodiment of the present specification is shown. Figure 7 As shown:

[0148] start;

[0149] - Identify whether the controller is placed on the host;

[0150] --If the controller is placed on the host, compare the controller power level with the controller power threshold;

[0151] ---If the power level of the handle is lower than the handle power threshold, the handle control unit sends a first output signal to the handle wireless charging control unit to control the wireless charging receiving unit to start;

[0152] ---If the power level of the handle is higher than the handle power threshold, the handle control unit sends a second output signal to the handle wireless charging control unit to control the wireless charging receiving unit to be turned off or not turned on;

[0153] - If the controller is not placed on the console, identify the working status of the console / controller;

[0154] --If the host is in the tooth flushing state, the host control unit detects the output signal of the wireless charging transmitter unit to determine whether the handle is placed on the host;

[0155] ---If the handle is placed on the main unit, when the main unit is in the flushing state, the main unit control unit controls the pump to turn off;

[0156] ---If the handle is not placed on the main unit, continue to flush teeth normally;

[0157] --If the handle is in the brushing state, the host control unit detects the output signal of the wireless charging transmitter unit to determine whether the handle is placed on the host;

[0158] ---If the handle is placed on the host, when the working state of the handle is the brushing state, the host control unit generates a motor shutdown signal, the host data transceiver unit sends the motor shutdown signal to the handle data transceiver unit, the handle data transceiver unit receives the motor shutdown signal, and the handle control unit controls the handle motor to be turned off;

[0159] ---If the handle is not placed on the main unit, continue brushing normally.

[0160] In the embodiments of this specification, the handle can be automatically charged when the battery is low, the wireless charging receiving unit can be turned off when the handle is fully charged, and the host control unit can enter a low power consumption state. The wireless charging can detect whether the handle is placed on the host, and the handle can be prevented from being charged frequently. Furthermore, the handle can be intelligently selected based on the battery level of the handle, which avoids the existing rechargeable battery from being frequently charged, resulting in a waste of electric energy. In addition, by detecting whether the handle is placed on the host through the wireless charging mechanism, the use of Hall detection sensors is reduced, the cost of the entire machine is reduced, and the design is simpler and the reliability is higher.

[0161] An embodiment of the present specification further provides a computer-readable storage medium storing a computer program / instruction, which implements the steps of the above-mentioned charging method for the oral care device when the computer program / instruction is executed by a processor.

[0162] The above is a schematic scheme of a computer-readable storage medium of this embodiment. It should be noted that the technical scheme of the storage medium and the technical scheme of the charging method of the above-mentioned oral care device belong to the same concept, and the details not described in detail in the technical scheme of the storage medium can be referred to the description of the technical scheme of the charging method of the above-mentioned oral care device.

[0163] An embodiment of the present specification also provides a computer program product, including a computer program / instruction, which implements the steps of the above-mentioned charging method for the oral care device when executed by a processor.

[0164] The above is a schematic scheme of a computer program product of this embodiment. It should be noted that the technical scheme of the computer program product and the technical scheme of the charging method of the above-mentioned oral care device belong to the same concept, and the details not described in detail in the technical scheme of the computer program product can be referred to the description of the technical scheme of the charging method of the above-mentioned oral care device.

[0165] The above is a description of a specific embodiment of the specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0166] The computer instructions include computer program codes, which may be in source code form, object code form, executable files or some intermediate forms, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, USB flash drive, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the content contained in the computer-readable medium may be appropriately increased or decreased according to the requirements of patent practice. For example, in some regions, according to patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0167] It should be noted that, for the aforementioned method embodiments, for the sake of simplicity of description, they are all described as a series of action combinations, but those skilled in the art should be aware that the embodiments of this specification are not limited by the order of the actions described, because according to the embodiments of this specification, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the embodiments of this specification.

[0168] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0169] The preferred embodiments of this specification disclosed above are only used to help explain this specification. The optional embodiments do not describe all the details in detail, nor do they limit the invention to only the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of the embodiments of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the embodiments of this specification, so that technicians in the relevant technical field can well understand and use this specification. This specification is only limited by the claims and their full scope and equivalents.

Claims

1. An oral care device, characterized in that: The device comprises a main unit and a handle, wherein the main unit comprises a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle is fluidically connected to the main unit, the handle comprises a handle battery, a handle control unit and a wireless charging receiving unit, the handle battery is electrically connected to the handle control unit, and the handle battery is electrically connected to the wireless charging receiving unit; The handle is used to respond to a handle charging trigger signal and, based on the handle power of the handle and a handle power threshold, control the wireless charging receiving unit to be turned on or off through the handle control unit.

2. The oral care device according to claim 1, characterized in that The handle is also used to control the wireless charging receiving unit to be turned on through the handle control unit when the handle power of the handle is lower than a handle power threshold.

3. The oral care device according to claim 2, characterized in that: The wireless charging receiving unit also includes a handle wireless charging control unit; The handle is also used to send a first output signal to the handle wireless charging control unit through the handle control unit to control the turning on of the wireless charging receiving unit when the handle power of the handle is lower than the handle power threshold.

4. The oral care device according to claim 1, characterized in that: The handle is also used to control the wireless charging receiving unit to be turned off through the handle control unit when the handle power of the handle is higher than a handle power threshold.

5. The oral care device according to claim 4, characterized in that: The wireless charging receiving unit also includes a handle wireless charging control unit; The handle is also used to send a second output signal to the handle wireless charging control unit through the handle control unit to control the shutdown of the wireless charging receiving unit when the handle power of the handle is higher than the handle power threshold.

6. The oral care device according to claim 1, characterized in that The host also includes a wireless charging transmitting unit; The handle is further used to generate a handle charging trigger signal when the distance between the wireless charging receiving unit and the wireless charging transmitting unit is smaller than the trigger distance.

7. The oral care device according to claim 1, characterized in that The host also includes a wireless charging transmitting unit; The handle is also used to generate a handle charging shutdown signal when the distance between the wireless charging receiving unit and the wireless charging transmitting unit is greater than the trigger distance. In response to the handle charging shutdown signal, the wireless charging receiving unit is controlled to be shut down through the handle control unit.

8. The oral care device according to any one of claims 1 to 7, characterized in that: The host also includes a host control unit and a wireless charging transmitting unit; The host is used to detect the output signal of the wireless charging transmitting unit through the host control unit to determine whether the handle is placed on the host. If so, the host control unit is used to control the working state of the oral care device to be closed.

9. The oral care device according to claim 8, characterized in that The handle further includes a handle data transceiver unit and a handle motor, and the host further includes a host data transceiver unit; The handle is further used to send the working status of the handle to the host data transceiver unit through the handle data transceiver unit; The host is further used to receive the working state of the handle motor through the host data transceiver unit. When the working state of the handle is the brushing state, the host control unit detects the output signal of the wireless charging transmitting unit to determine whether the handle is placed on the host. If so, the host control unit generates a motor shutdown signal, and sends the motor shutdown signal to the handle data transceiver unit through the host data transceiver unit. The handle is further used to receive the motor shutoff signal through the handle data transceiver unit, and control the handle motor to be shut off through the handle control unit.

10. The oral care device according to claim 8, characterized in that The host is also used to detect the output signal of the wireless charging transmitting unit through the host control unit when the working state of the host is the tooth flushing state, to determine whether the handle is placed on the host, and if so, to control the pump to be turned off through the host control unit.

11. A method for charging an oral care device, characterized in that: The oral care device includes a main unit and a handle, wherein the main unit includes a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle is fluidically connected to the main unit, the handle includes a handle battery, a handle control unit and a wireless charging receiving unit, the handle battery is electrically connected to the handle control unit, and the handle battery is electrically connected to the wireless charging receiving unit, including: In response to a handle charging trigger signal, based on the handle power level of the handle and a handle power threshold, the handle control unit is controlled to turn on or off the wireless charging receiving unit.

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