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, a handle, a wireless charging module and a sensor set, the main machine comprises a fluid storage device and a pump in fluid connection with the fluid storage device, the handle is in fluid connection with the main machine, and the wireless charging module is in fluid connection with the main machine. The sensor group comprises a first sensor unit connected to the host and a second sensor unit connected to the handle; and the host is used for generating a charging trigger signal under the condition that the distance between the first sensor unit and the second sensor unit is smaller than the Hall effect trigger distance, and starting the wireless charging module to transmit the electric energy of the host to the handle in response to the charging trigger signal. Resources are effectively saved, the use cost and potential safety hazards are reduced, and the product endurance of the oral care device 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. The motor rotates and vibrates at high speed, causing the brush head to vibrate at a high frequency, or the punch head to output high-pressure water jets 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, and the main unit and the handle are respectively provided with internal power components and a power source. The power state of the power source is an important factor affecting the performance of the oral care device. Wireless charging from the main unit to the handle can effectively improve the convenience of use. However, the existing wireless charging method is directly applied to wireless charging between oral care devices that are respectively provided with internal power components and power sources. It cannot balance the power between different devices and avoid power loss, which increases the cost of use, safety hazards, and reduces the product life of the oral care device. 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, there is provided an oral care device, comprising a main unit, a handle, a wireless charging module and a sensor group, 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, and the sensor group comprises a first sensor unit connected to the main unit and a second sensor unit connected to the handle;

[0006] The host is used to generate a charging trigger signal when the distance between the first sensor unit and the second sensor unit is less than the Hall effect trigger distance, and in response to the charging trigger signal, turn on the wireless charging module to transmit the power of the host to 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 a host of the oral care device, wherein the oral care device further comprises a handle, a wireless charging module and a sensor group, wherein the host comprises a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle is fluidically connected to the host, and the sensor group comprises a first sensor unit connected to the host and a second sensor unit connected to the handle, wherein the method comprises:

[0008] generating a charging trigger signal when the spacing between the first sensor unit and the second sensor unit is smaller than the Hall effect trigger spacing;

[0009] In response to the charging trigger signal, the wireless charging module is turned on to transmit the power of the host to the handle.

[0010] 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.

[0011] 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.

[0012] In one embodiment of the present specification, an oral care device is provided, including a host, a handle, a wireless charging module and a sensor group, wherein the host includes a fluid reservoir and a pump connected to the fluid reservoir, the handle is fluidly connected to the host, and the sensor group includes a first sensor unit connected to the host and a second sensor unit connected to the handle; the host is used to generate a charging trigger signal when the distance between the first sensor unit and the second sensor unit is less than the Hall effect trigger distance, and in response to the charging trigger signal, the wireless charging module is turned on to transmit the power of the host to the handle. When the distance between the first sensor unit and the second sensor unit is less than the Hall effect trigger distance, the Hall effect is triggered to generate a charging trigger signal, and in response to the charging trigger signal, the wireless charging module is automatically turned on to transmit the power of the host to the handle, which effectively saves resources, reduces the use cost and safety hazards, and improves the product life of the oral care device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a structural schematic diagram of an oral care device provided by an embodiment of this specification;

[0014] Figure 2 is a structural schematic diagram of another oral care device provided by an embodiment of the present specification;

[0015] Figure 3 is a structural schematic diagram of another oral care device provided by an embodiment of the present specification;

[0016] Figure 4 is a circuit diagram of a main control circuit of a wireless charging module in an oral care device provided in one embodiment of the present specification;

[0017] Figure 5is a circuit diagram of a driving circuit of a wireless charging module in an oral care device provided by one embodiment of the present specification;

[0018] Figure 6 is a circuit diagram of a protection point circuit of a wireless charging module in an oral care device provided by an embodiment of the present specification;

[0019] Figure 7 is a circuit diagram of a Hall element in an oral care device provided in one embodiment of the present specification;

[0020] Figure 8 is a circuit diagram of a host control unit in an oral care device provided in one embodiment of the present specification;

[0021] Fig. 9 is a circuit diagram of a handle control unit in an oral care device provided in one embodiment of the present specification;

[0022] Fig.10 is a circuit diagram of a MOS switch in an oral care device provided in one embodiment of the present specification;

[0023] Fig.11 is a circuit diagram of a data sending unit in an oral care device provided by one embodiment of the present specification;

[0024] Fig.12 is a flow chart of a charging method for an oral care device provided by one embodiment of the present specification;

[0025] Fig.13 It is a process flow chart of a charging method of an oral care device applied to an all-in-one flushing machine provided by an embodiment of the present specification;

[0026] Fig.14 is a cross-sectional view of a flushing machine provided by one embodiment of the present specification;

[0027] Fig.15 It is a three-dimensional schematic diagram of a flushing machine provided by an embodiment of this specification;

[0028] Fig.16 It is an exploded view of an all-in-one flushing machine provided in one embodiment of the present specification. DETAILED DESCRIPTION

[0029] 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.

[0030] 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.

[0031] 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".

[0032] 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.

[0033] First, the terms involved in one or more embodiments of this specification are explained.

[0034] Wireless charging: A technology that uses electromagnetic induction, electromagnetic resonance or other wireless transmission methods to provide contactless charging for battery-powered devices.

[0035] 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.

[0036] 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.

[0037] MOS switch: An electronic switching element that uses a metal-oxide semiconductor field effect transistor (MOSFET) to control the on and off of current.

[0038] 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.

[0039] See also Figure 1 , Figure 1 FIG. 1 shows a schematic diagram of the structure of an oral care device provided by an embodiment of the present specification, such as Figure 1 As shown:

[0040] The oral care device 10 of the embodiment of the present specification includes a host 110, a handle 120, a wireless charging module 130 and a sensor group 140, the host 110 includes a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle 120 is fluidically connected to the host 110, and the sensor group includes a first sensor unit 1410 connected to the host 110 and a second sensor unit 1420 connected to the handle 120;

[0041] The host 110 is used to generate a charging trigger signal when the distance between the first sensor unit 1410 and the second sensor unit 1420 is less than the Hall effect trigger distance, and in response to the charging trigger signal, turn on the wireless charging module 130 to transmit the power of the host 110 to the handle 120.

[0042] The oral care device 10 is an electric device with an oral care function, including but not limited to: an electric toothbrush, an electric water flosser, and a water flosser that integrates the functions of brushing and filling teeth. The oral care device 10 has two components: a main unit 110 and a handle 120 .

[0043] The host 110 is the core control component of the oral care device 10, and is equipped with a host power supply and a fluid system. The host power supply includes but is not limited to: a host battery and / or a host external power supply circuit, and the fluid system includes a fluid reservoir and a pump connected to the fluid reservoir. The host 110 realizes the oral care function by running the pump to transport the fluid stored in the fluid reservoir to the oral care head (brush head or stamping head) of the handle 120. The host 110 controls the wireless charging module 130 to turn on and transmit the power of the host 110 to the handle 120, or turns off the wireless charging module 130 to stop transmitting the power of the host 110 to the handle 120.

[0044] The handle 120 is a user oral interaction component of the oral care device 10, and is equipped with a handle battery, a handle motor and a fluid connection tube. An oral care head is configured at one end of the handle 120, and the other end is fluidically connected to the host 110 through the 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.

[0045] 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.

[0046] The wireless charging module 130 is a functional module that uses electromagnetic induction, electromagnetic resonance or other wireless transmission methods to perform contactless charging for the handle battery. Among them, the wireless charging module includes but is not limited to: a wireless charging module of the Qi standard and a wireless charging module of the AirFuelAlliance standard. The wireless charging module 130 is turned on by the control of the host 110. The wireless charging module 130 can be built into the host 110 or external to the host 110, which is not limited here.

[0047] The sensor group 140 is a set of sensor units that sense distance through the Hall effect, and includes a first sensor unit 1410 connected to the host 110 and a second sensor unit 1420 connected to the handle 120 .

[0048] The first sensor unit 1410 is a Hall effect sensor unit connected to the host 110, and the first sensor unit 1410 is used to cooperate with the second sensor unit 1420 to monitor the change of the magnetic field. The first sensor unit 1410 is a Hall element or a magnetic component, and the magnetic component can be a magnet element, or an excitation or magnetic sensing element such as a coil, which can provide a changing magnetic field. The first sensor unit 1410 can be arranged on the host 110, or can be external to the host 110, which is not limited here.

[0049] The second sensor unit 1420 is a Hall effect sensor unit connected to the handle 120, and is used to cooperate with the first sensor unit 1410 to monitor changes in the magnetic field. The second sensor unit 1420 is a Hall element or a magnetic component, which can be a magnet element or an excitation or magnetic sensing element such as a coil, which can provide a changing magnetic field. The second sensor unit 1420 can be arranged on the handle 120, or can be externally placed on the handle 120, which is not limited here.

[0050] The spacing between the first sensor unit 1410 and the second sensor unit 1420 is the straight-line distance between the first sensor unit 1410 and the second sensor unit 1420 during the process of attaching the handle 120 to the host 110. When the handle 120 is attached to the host 110, this distance can be fixed or a small range of variation allowed by the design. This spacing is an important parameter for sensor arrangement and is directly related to the synchronization of sensor data, measurement accuracy, and the overall functional performance of the system.

[0051] The Hall effect trigger spacing is the critical value of the straight-line distance used to trigger the Hall effect. Once the spacing between the first sensor unit 1410 and the second sensor unit 1420 is smaller than the critical value, the conductors of the sensor units in the sensor group 140 will generate a voltage difference perpendicular to the direction of the current and the magnetic field, generating a Hall signal, which is a charging trigger signal.

[0052] The charging trigger signal is a Hall signal used to control the start of the wireless charging module 130. When the Hall effect occurs, the conductor of the sensor unit in the sensor group 140 generates a voltage difference perpendicular to the direction of the current and the magnetic field, generating a Hall signal, which is a charging trigger signal.

[0053] In response to the charging trigger signal, the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120. An optional method is: in response to the charging trigger signal, the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120 through the MOS switch. Another optional method is: in response to the charging trigger signal, the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120 through a relay. Another optional method is: in response to the charging trigger signal, the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120 through a pulse width modulation (PWM) controller. There is no limitation here.

[0054] In the embodiment of this specification, when the distance between the first sensor unit 1410 and the second sensor unit 1420 is less than the Hall effect triggering distance, the Hall effect is triggered to generate a charging trigger signal, and in response to the charging trigger signal, the wireless charging module 130 is automatically turned on to transmit the power of the host 110 to the handle 120, which effectively saves resources, reduces the cost of use and safety hazards, and improves the product life of the oral care device 10. When the handle 120 is not placed, the host 110 turns off the wireless charging module 130, which can prevent the handle 120 from being frequently charged, and at the same time avoid the wireless charging module 130 being in the turned-on state and consuming power.

[0055] In an optional embodiment of the present specification, the first sensor unit 1410 is a Hall element, and the second sensor unit 1420 is a first magnetic member;

[0056] The host 110 is further configured to generate a charging trigger signal through the Hall element when the distance between the Hall element and the first magnetic member is smaller than the Hall effect trigger distance.

[0057] There is an electrical connection between the Hall element and the host 110. When the Hall effect occurs, a voltage difference perpendicular to the direction of the current and the magnetic field is generated, generating a Hall signal, which is a charging trigger signal, and is sent to the host 110 through the electrical connection. The host 110 controls the wireless charging module 130 to start in response to the charging trigger signal.

[0058] The first magnetic member can be arranged on the handle 120, or can be placed outside the handle 120, including but not limited to: neodymium iron boron (NdFeB) magnet, samarium cobalt (SmCo) magnet, aluminum nickel cobalt (AlNiCo) magnet, excitation coil. Taking the arrangement on the handle 120 as an example, an optional way is: the first magnetic member is arranged on the back of the handle 120. A further optional way is: the first magnetic member is fixed on a magnet fixing frame, and the magnet fixing frame is arranged on one side of the handle near the back of the handle. When the handle 120 is connected to the handle placement position of the host 110, the distance between the Hall element and the first magnetic member is less than the Hall effect trigger distance.

[0059] In the embodiment of the present specification, when the distance between the Hall element and the first magnetic part is smaller than the Hall effect trigger distance, a charging trigger signal is generated by the Hall element, and the wireless charging module is automatically turned on to transmit the power of the host to the handle, thereby realizing intelligent wireless charging, simplifying the charging operation, improving efficiency and safety, and optimizing the user experience.

[0060] In an optional embodiment of the present specification, the host 110 further includes a second magnetic member, and the second magnetic member and the first magnetic member are used to attach the handle 120 to the handle placement position on the host 110. The first magnetic member is a magnet, and the first magnetic member can trigger the first sensor unit 1410, and can cooperate with the second magnetic member to magnetically adsorb the handle 120 to the host 110. The second magnetic member is a magnet or a material that can be magnetically attracted by a magnet, such as an iron sheet.

[0061] In an optional embodiment of the present specification, the handle 120 further includes a third magnetic member, and the second magnetic member and the third magnetic member are used to fix the handle 120 to the handle placement position on the host 110. The second magnetic member and the third magnetic member can be arranged to detachably connect the handle 120 to the host 110 at any one of a plurality of desired positions relative to the host 110. The second magnetic member and the third magnetic member can both be magnets, or one of the second magnetic member and the third magnetic member is a magnet, and the other is a substance that can be adsorbed by a magnet, such as an iron sheet.

[0062] The second magnetic member is a magnet or a material that can be magnetically attracted and arranged on the main unit 110, including but not limited to: neodymium iron boron (NdFeB) magnet, samarium cobalt (SmCo) magnet and aluminum nickel cobalt (AlNiCo). One optional way is to arrange it at the bottom of the main unit 110 to ensure stable adsorption; another optional way is to install it on the side of the main unit 110 to facilitate adsorption with the handle 120 from different angles; another optional way is to design it into a detachable structure to facilitate users to adjust or replace it as needed.

[0063] The third magnetic member is a magnet or a material that can be magnetically attracted and arranged on the handle 120, including but not limited to: neodymium iron boron (NdFeB) magnet, samarium cobalt (SmCo) magnet and aluminum nickel cobalt (AlNiCo). One optional way is to embed it on the back of the handle 120 and directly attach it to the host 110 by magnetic attraction; another optional way is to set it at the bottom of the handle 120 to facilitate adsorption with the host 110 from different angles; another optional way is to wrap it with low-loss materials to reduce interference with other circuit components in the handle.

[0064] In the embodiments of the present specification, the second magnetic component and the third magnetic component are both magnets, and the second magnetic component and the third magnetic component are arranged relative to each other at their opposite ends, for example, the S pole of the third magnetic component on the handle 120 and the N pole of the second magnetic component on the main unit 110 are arranged relative to each other, and the handle 120 and the main unit 110 are detachably connected through the magnetic adsorption effect between the second magnetic component and the third magnetic component, and the handle 120 is adjustably and firmly and flexibly connected to the handle placement position of the main unit 110 through magnetic attachment, thereby improving the convenience and stability of the oral care device 10 in use.

[0065] See also Figure 2 , Figure 2 FIG. 1 shows a structural diagram of another oral care device provided by an embodiment of the present specification, such as Figure 2 As shown:

[0066] In an optional embodiment of the present specification, the host 110 further includes a host control unit 1110 and a data receiving unit 1120, and the handle 120 further includes a handle control unit 1210 and a data sending unit 1220;

[0067] The handle 120 is used to generate a charging instruction through the handle control unit 1210 when the handle power is less than or equal to the handle power threshold, and send the charging instruction to the data receiving unit 1120 through the data sending unit 1220;

[0068] The host 110 is also used to respond to the charging trigger signal, receive the charging instruction through the data receiving unit 1120, and activate the wireless charging module 130 through the host control unit 1110 to transmit the power of the host 110 to the handle.

[0069] The host control unit 1110 is the core control module of the oral care device 10, which is responsible for monitoring and controlling the functions and operating status of the oral care device 10, including but not limited to: controlling the opening and closing of the wireless charging module 130, transmitting data with the handle 120, and coordinating the cooperation of various components. The host control unit 1110 is usually integrated with a microprocessor unit or a microcontroller unit, which can execute pre-programmed computer programs / instructions. For example, when the charging instruction sent by the data sending unit 1220 is received from the data receiving unit 1120, the host control unit 1110 will determine the validity of the charging instruction and decide whether to turn on the wireless charging module 130 to transfer the power of the host 110 to the handle 120. For another example, when the fluid output instruction sent by the data sending unit 1220 is received from the data receiving unit 1120, it is ensured that the fluid is delivered to the oral care head of the handle 120 at an appropriate pressure and flow rate.

[0070] The data receiving unit 1120 is an electronic unit in the host 110 used for data transmission with the handle 120, and is responsible for receiving data or command signals sent by the data sending unit 1220, including but not limited to: Bluetooth data receiving unit, WiFi data receiving unit, 2.4G data receiving unit, near-field data receiving unit and cable data receiving unit.

[0071] The host control unit 1110 and the data receiving unit 1120 are electrically connected, and the data receiving unit 1120 sends a charging instruction to the host control unit 1110 through the electrical connection.

[0072] The handle control unit 1210 is a control unit in the handle 120 for monitoring and controlling the operating state of the handle 120. For example, for power monitoring, when the handle power is less than or equal to the handle power threshold, a charging instruction is generated by the handle control unit 1210, and the charging instruction is sent to the data receiving unit 1120 through the data sending unit 1220. 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 1210 identifies and processes the switching signal of the oral care mode, adjusts the operating mode of the handle motor, and sends the relevant command signal through the data sending unit 1220 to notify the host 110 to adjust the corresponding fluid output.

[0073] The data sending unit 1220 is an electronic unit in the handle 120 for data transmission with the host 110, responsible for sending data or command signals to the data receiving unit 1120, including but not limited to: Bluetooth data sending unit, WiFi data sending unit, 2.4G data sending unit, near-field data sending unit and cable data sending unit.

[0074] There is an electrical connection between the handle control unit 1210 and the data sending unit 1220, and the handle control unit 1210 sends a charging instruction to the data sending unit 1220 through the electrical connection.

[0075] The handle power is the current remaining power of the handle battery of the handle 120. The level of the handle power directly affects the remaining use time of the handle 120. Optionally, the handle power 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 use time.

[0076] The handle power threshold is a charging threshold preset for the handle power. When the handle power is less than or equal to the handle power threshold, the handle 120 will automatically trigger a charging instruction to prevent the handle 120 from being unusable due to power exhaustion. For example, the handle power threshold is set to 30%, and for another example, the handle power threshold is set to 1000 mAh.

[0077] The charging instruction is used to trigger the host control unit 1110 to control the command information for turning on the wireless charging module 130, and the charging instruction carries the information of the handle power. For example, when the handle 120 detects that the handle power is reduced to the handle power threshold (30% power) or lower than the handle power threshold (30% power), the handle control unit 1210 automatically generates a charging instruction, which is sent to the 2.4G data receiving unit 1120 of the host 110 through the 2.4G data sending unit 1220. The host 110 responds to the charging trigger signal, receives the charging instruction through the data receiving unit 1120, and turns on the wireless charging module 130 through the host control unit 1110 to charge the handle 120, without manual intervention by the user.

[0078] The wireless charging module 130 is turned on through the host control unit 1110 to transmit the power of the host 110 to the handle. One optional method is: the MOS switch is controlled by the host control unit 1110, and the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120. Another optional method is: the relay is controlled by the host control unit 1110, and the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120. Another optional method is: the pulse width modulation controller is controlled by the host control unit 1110, and the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120. There is no limitation here.

[0079] In the embodiments of the present specification, the wireless charging module 130 is turned on for on-demand charging only when the handle power level is less than or equal to the handle power threshold through charging instruction control, thereby avoiding charging when the handle power level is high, reducing unnecessary power loss of the host 110, and more effectively saving resources, further reducing the cost of use and safety hazards, and further improving the product life of the oral care device 10.

[0080] In an optional embodiment of the present specification, the host 110 is also used to respond to a charging trigger signal, receive a charging instruction through the data receiving unit 1120, compare the handle power and the current host power of the host 110, and determine whether the power balance condition is reached. If not, the wireless charging module 130 is turned on through the host control unit 1110 to transfer the power of the host 110 to the handle 120.

[0081] In an optional embodiment of the present specification, the host 110 is also used to respond to a charging trigger signal, receive a charging instruction through the data receiving unit 1120, compare the handle power and the current host power of the host 110, determine whether the power balance condition is reached, and if so, turn off the wireless charging module 130 through the host control unit 1110.

[0082] The current host power of the host 110 is the current remaining power of the host battery of the host 110. The current host power directly affects the remaining use time of the host 110. The current host power needs to be continuously monitored to ensure that sufficient power can be provided in time when the handle 120 needs to be charged. Optionally, the current host power is displayed to the user through an LED light or a display screen on the host 110 so that the user can intuitively understand the remaining use time.

[0083] In the embodiment of this specification, the control logic of the host control unit 1110 is an AND gate logic, the inputs are respectively the charging trigger signal and the charging instruction, and the output is the control signal. The truth table is shown in Table 1:

[0084] Charging trigger signal Charging instructions Output control signal have have Turn on the wireless charging module 130 have none Turn off the wireless charging module 130 none have Turn off the wireless charging module 130 none none Turn off the wireless charging module 130

[0085] Table 1

[0086] In addition, in order to protect the battery life of the host and optimize energy usage, the current host power management also needs to consider the power balancing strategy, that is, to maintain a reasonable distribution between the power of the handle 120 and the host 110 to avoid energy waste caused by excessive discharge or frequent charging.

[0087] Compare the handle power and the current host power of the host 110 to determine whether the power balance condition is met. An optional method is to compare the ratio of the handle power and the current host power of the host 110 to determine whether the power balance condition is met. For example, assume that the handle power is 1500mAh and the host power is 3000mAh. According to the calculation method of the power ratio (host power / handle power), the ratio is 2:1, and the preset ideal power ratio condition (1:2 or 2:1) is obtained. When the host power / handle power is greater than 2:1, it is determined that the power balance condition is not met at this time, and wireless charging can be started to replenish power to the handle to ensure that the power of the host remains sufficient while the power of the handle is increased. Another optional method is to compare the handle power and the current host power of the host 110 to determine whether the power balance condition is met, which is not limited here. For example, assume that the handle power is 2000mAh and the host power is 3500mAh. According to the power value difference method, the host power is set to be at least 1000mAh higher than the handle power. In this example, the console does have 1500mAh more power than the controller, far exceeding the set value of 1000mAh, so it is determined that the power balance condition has not been met and wireless charging can be performed. On the contrary, if the controller has 2500mAh power and the console has 3000mAh power, although the console still has more power, it only exceeds 500mAh and does not meet the power difference standard of 1000mAh, so wireless charging will not be enabled.

[0088] In the embodiments of the present specification, the power levels of the handle and the host are intelligently detected, and wireless charging is started only when the power levels are unbalanced, ensuring that the wireless charging module is turned off only when the current power levels of the host 110 and the handle 120 reach a power balance condition. This prevents the host 110 from consuming power too quickly and ensures that the handle 120 is replenished in time, thereby extending the overall usage time and battery life of the oral care device 10, optimizing energy management, and improving user experience.

[0089] In an optional embodiment of the present specification, the host 110 is also used to respond to a charging trigger signal, receive a charging instruction through a data receiving unit, and when the current host power of the host 110 is greater than the host power threshold, compare the handle power and the current host power of the host 110 to determine whether a power balance condition is reached. If not, the wireless charging module 130 is turned on through the host control unit 1110 to transfer the power of the host 110 to the handle 120.

[0090] In an optional embodiment of the present specification, the host 110 is also used to respond to a charging trigger signal, receive a charging instruction through a data receiving unit, and when the current host power of the host 110 is greater than the host power threshold, compare the handle power and the current host power of the host 110 to determine whether the power balance condition is met. If so, the wireless charging module 130 is turned off through the host control unit 1110.

[0091] In the embodiment of this specification, the power balance condition is that when the current power of the host 110 is greater than the power of the handle and the host 110 charges the handle 120, as the current battery power of the host decreases, the power of the handle increases. When the power of the handle is greater than or equal to the current battery power of the host 110, it means that the power balance condition has been met. The premise for achieving this power balance condition is to determine whether the current power of the host 110 is sufficient. For example, the host power threshold is set to 30%, and the current power of the host 110 does not exceed 30%. There is no need to compare the power of the handle and the current host power of the host 110 to determine whether the power balance condition is met.

[0092] The host power threshold is a charging threshold preset for the current power of the host. When the current power of the host 110 is greater than the host power threshold, it is determined whether the power balancing condition is met to prevent the host 110 from being unable to continue to be used due to power exhaustion. For example, the host power threshold is set to 30%, and for another example, the host power threshold is set to 3000 mAh.

[0093] In the embodiments of this specification, the host power threshold is set as a prerequisite for determining power balance, which effectively prevents reverse charging when the host is currently in an insufficient power state, reduces deep discharge, and thus extends the service life of the host battery, avoids unnecessary energy consumption, and improves the economy and environmental protection of energy use.

[0094] In an optional embodiment of the present specification, the handle 120 is also used to generate a charging instruction through the handle control unit 1210 and send the charging instruction to the data receiving unit 1120 through the data sending unit 1220 when the handle power is less than or equal to the handle power threshold, the handle 120 is not in a charging state, and the host currently has sufficient power.

[0095] In an optional embodiment of the present specification, the handle 120 is further used to generate a charging disconnection instruction through the handle control unit 1210 and send the charging disconnection instruction to the data receiving unit 1120 through the data sending unit 1220 when the handle power is less than or equal to the handle power threshold, the handle 120 is in a charging state, and the current power of the host is insufficient;

[0096] The host 110 is further configured to respond to a charging trigger signal, receive a charging disconnection instruction through the data receiving unit 1120 , and shut down the wireless charging module 130 through the host control unit 1110 .

[0097] It should be noted that the handle 120 can be charged by wired charging in addition to wireless charging. Therefore, it is necessary to determine in advance whether the handle 120 is in a charging state. If it is in a charging state, the wireless charging module is turned off. If it is not charging, the charging instruction can be sent to the data receiving unit 1120 through the data sending unit 1220, and the host 110 can further determine whether to turn on the wireless charging module 130. In addition, it is also necessary to consider whether the current power of the host is sufficient.

[0098] The charging disconnection instruction is instruction information for stopping triggering the host control unit 1110 to control the opening of the wireless charging module 130, and the charging disconnection instruction carries information about the power of the handle. For example, when the handle 120 detects that the power of the handle is reduced to the handle power threshold (30% power) or lower than the handle power threshold (30% power), the handle 120 is in a charging state and the current power of the host is insufficient, the handle control unit 1210 automatically generates a charging disconnection instruction, which is sent to the 2.4G data receiving unit 1120 of the host 110 through the 2.4G data sending unit 1220. The host 110 responds to the charging trigger signal, receives the charging disconnection instruction through the data receiving unit 1120, and turns off the wireless charging module 130 through the host control unit 1110.

[0099] In the embodiment of this specification, the control logic of the handle control unit 1210 is an AND gate logic, the inputs are whether the handle power is less than or equal to the handle power threshold, whether the handle 120 is in a charging state, and the output is a charging instruction or a charging disconnection instruction. The truth table is shown in Table 2:

[0100]

[0101] Table 2

[0102] In addition, in order to protect the battery life of the host and optimize energy usage, on the basis of determining whether the handle 120 is in a charging state, a power balancing strategy must also be considered, that is, to maintain a reasonable distribution of power between the handle 120 and the host 110 to avoid energy waste caused by excessive discharge or frequent charging.

[0103] The wireless charging module 130 is turned off through the host control unit 1110. One optional way is to control the MOS switch through the host control unit 1110 to turn off the wireless charging module 130. Another optional way is to control the relay through the host control unit 1110 to turn off the wireless charging module 130. Another optional way is to control the pulse width modulation controller through the host control unit 1110 to turn off the wireless charging module 130. There is no limitation here.

[0104] In the embodiments of this specification, the power level and charging status of the handle are intelligently detected, wireless charging is dynamically regulated, power balance management is achieved, and energy distribution is optimized, which not only extends the overall usage time and battery life of the oral care device 10, but also avoids unnecessary energy loss, optimizes energy management, and improves user experience.

[0105] In an optional embodiment of the present specification, the host 110 is also used to determine whether the host 110 is in a charging state. When the host 110 is not in a charging state and the distance between the first sensor unit 1410 and the second sensor unit 1420 is less than the Hall effect trigger distance, a charging trigger signal is generated. In response to the charging trigger signal, the wireless charging module 130 is turned on to transmit the power of the host 110 to the handle 120.

[0106] In an optional embodiment of the present specification, the host 110 is further used to determine whether the host 110 is in a charging state, and when the host 110 is in a charging state, the wireless charging module 130 is turned on.

[0107] Before the host 110 generates a charging trigger signal, the host 110 needs to determine whether it is in a charging state (external power supply). If the host 110 is in a charging state, the power supply is stable and sufficient, and the wireless charging module 130 is always on; if the host 110 is not in a charging state, the power supply is unstable, and a charging trigger signal needs to be generated to reasonably turn on or off the wireless charging module 130.

[0108] In the embodiments of the present specification, unnecessary activation of wireless charging when there is no external power supply is avoided to cause excessive discharge, thereby saving host power, optimizing energy utilization efficiency, protecting battery health, and extending the service life of the host 110.

[0109] In an optional embodiment of the present specification, the host 110 further includes a host control unit 1110 and a data receiving unit 1120, and the handle 120 further includes a handle control unit 1210 and a data sending unit 1220;

[0110] The handle 120 is used to generate a charging disconnection instruction through the handle control unit 1210 when the handle power is greater than the handle power threshold, and send the charging disconnection instruction to the data receiving unit 1120 through the data sending unit 1220;

[0111] The host 110 is further configured to respond to a charging trigger signal, receive a charging disconnection instruction through the data receiving unit 1120 , and shut down the wireless charging module 130 through the host control unit 1110 .

[0112] The charging disconnection instruction is the instruction information for stopping triggering the host control unit 1110 to control the opening of the wireless charging module 130, and the charging disconnection instruction carries the handle power. For example, when the handle 120 detects that the handle power is greater than the handle power threshold (30% power), the handle control unit 1210 automatically generates a charging disconnection instruction, which is sent to the 2.4G data receiving unit 1120 of the host 110 through the 2.4G data sending unit 1220. The host 110 responds to the charging trigger signal, receives the charging disconnection instruction through the data receiving unit 1120, and turns off the wireless charging module 130 through the host control unit 1110, without manual intervention by the user.

[0113] The wireless charging module 130 is turned off through the host control unit 1110. One optional way is to control the MOS switch through the host control unit 1110 to turn off the wireless charging module 130. Another optional way is to control the relay through the host control unit 1110 to turn off the wireless charging module 130. Another optional way is to control the pulse width modulation controller through the host control unit 1110 to turn off the wireless charging module 130. There is no limitation here.

[0114] In the embodiment of the present specification, when the handle power level is greater than the handle power threshold, the wireless charging module 130 is shut down through the charging disconnection command control, thereby avoiding charging when the handle power level is high, reducing unnecessary power loss of the host 110, and more effectively saving resources. It further reduces the cost of use and safety hazards, and further improves the product life of the oral care device 10.

[0115] Optionally, Figure 3 FIG. 1 shows a schematic diagram of the structure of another oral care device provided by an embodiment of the present specification. Figure 3 As shown:

[0116] The oral care device 10 includes a main body 110 , a handle 120 , a wireless charging module 130 and a sensor group 140 .

[0117] The host 110 includes a host control unit 1110 and a data receiving unit 1120 .

[0118] The handle 120 includes a handle control unit 1210 and a data transmitting unit 1220 .

[0119] The wireless charging module 130 includes a wireless charging transmitting unit and a wireless charging receiving unit, wherein the wireless charging transmitting unit is arranged on the host 110 and the wireless charging receiving unit is arranged on the handle 120 .

[0120] The sensor group 140 includes a Hall element disposed on the host 110 and a first magnetic member disposed on the handle.

[0121] The MOS switch operates at a steady current under the operating voltage.

[0122] The workflow is as follows:

[0123] The host control unit 1110 detects whether the handle 120 is placed on the host 110 by determining whether the distance between the Hall element and the first magnetic member is smaller than the Hall effect triggering distance.

[0124] 1. When the handle 120 is not placed on the host 110:

[0125] When the distance between the Hall element and the first magnetic component is greater than the Hall effect trigger distance, the host control unit 1110 generates a power-off trigger signal, and controls the MOS switch through the host control unit 1110 to close the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0126] 2. When the handle 120 is placed on the host 110:

[0127] When the distance between the Hall element and the first magnetic member is smaller than the Hall effect trigger distance, the host control unit 1110 generates a charging trigger signal.

[0128] 2.1. The handle 120 is placed on the host 110 and is not in a charging state:

[0129] When the handle power level is less than or equal to the handle power threshold and the handle 120 is not in a charging state, a charging instruction is generated by the handle control unit 1210 and the charging instruction is sent to the data receiving unit 1120 by the data sending unit 1220 .

[0130] In response to the charging trigger signal, the charging instruction is received through the data receiving unit 1120, and the power level of the handle is compared with the current power level of the host 110 to determine whether the power balance condition is met.

[0131] 2.1.1. The handle 120 is placed on the host 110, the handle is low on power, the handle 120 is not in charging state, and the host is fully charged:

[0132] The host control unit 1110 controls the MOS switch to open the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0133] 2.1.2. When the handle 120 is placed on the host 110, the handle is low on power, the handle 120 is not in charging state, and the host is low on power:

[0134] The host control unit 1110 controls the MOS switch to close the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0135] 2.1.3. When the handle 120 is placed on the host 110 and the handle has sufficient power:

[0136] When the handle power level is greater than the handle power threshold, the handle control unit 1210 generates a charging disconnection instruction, and the data sending unit 1220 sends the charging disconnection instruction to the data receiving unit 1120 .

[0137] In response to the charging trigger signal, the data receiving unit 1120 receives a charging disconnection instruction, and the host control unit 1110 controls the MOS switch to close the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0138] 2.2. The handle 120 is placed on the host 110 and is in a charging state:

[0139] When the handle power level is less than or equal to the handle power threshold and the handle 120 is in a charging state, a charging disconnection instruction is generated by the handle control unit 1210 and sent to the data receiving unit 1120 by the data sending unit 1220 .

[0140] In response to the charging trigger signal, the data receiving unit 1120 receives a charging disconnection instruction, and the host control unit 1110 controls the MOS switch to close the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0141] Figure 4 FIG. 1 shows a circuit diagram of a main control circuit of a wireless charging module in an oral care device provided by an embodiment of the present specification, such as Figure 4 As shown:

[0142] The core of the main control circuit is a wireless charging transmitter IC. The serial number, input / output and function description of each pin are shown in Table 3:

[0143]

[0144]

[0145] Table 3

[0146] Figure 5 FIG. 1 shows a circuit diagram of a driving circuit of a wireless charging module in an oral care device provided by an embodiment of the present specification, such as Figure 5 As shown:

[0147] The driving circuit is mainly composed of a P-channel and an N-channel MOS tube Q1, Q2 and related driving circuits. Q1 is used as a high-voltage side switch, and Q2 is used as a low-voltage side switch. When PMOS is high, Q1 is turned off; when PMOS is low, Q1 is turned on; when NMOS is high, Q2 is turned on; when NMOS is low, Q2 is turned off. By quickly turning Q1 and Q2 on and off, energy is transferred from the transmitter to the receiver, thereby realizing the function of wireless charging.

[0148] Figure 6 A circuit diagram of a protection point circuit of a wireless charging module in an oral care device provided by an embodiment of the present specification is shown. Figure 6 As shown:

[0149] The protection point circuit is mainly composed of three resistors R39, R38 and R37. These three resistors are connected in series to form a voltage divider circuit. When the working voltage of the wireless charging module exceeds the preset protection point voltage, the protection mechanism will be triggered to cut off the power supply to prevent overvoltage, overcurrent and overtemperature from damaging the device.

[0150] Figure 7 FIG. 1 shows a circuit diagram of a Hall element in an oral care device provided by an embodiment of the present specification, such as Figure 7 As shown:

[0151] In the circuit, the Hall sensor U1 is connected to a power supply (V3.0V) and ground (GND). It is also connected to the ground through two capacitors (C1 and C3), which are used to filter or stabilize the voltage. In addition, there is a resistor (R1) with a resistance of 510 kilo-ohms ±5%, which is connected between the power supply and the Hall sensor to act as a pull-up resistor and provide a certain signal to the output of the sensor.

[0152] Figure 8 FIG. 1 shows a circuit diagram of a host control unit in an oral care device provided in one embodiment of the present specification, such as Figure 8 As shown:

[0153] The host control unit is a 32-pin packaged integrated circuit chip. This circuit chip is the core of the entire circuit and is responsible for processing and coordinating various signals. The various pins of the circuit chip are connected to different components and functional areas. On the left, there are multiple pins connected to the SWD interface, which is a standard interface for programming and debugging microcontrollers. On the right, some pins are connected to the power and ground wires, indicating that they are used to provide power or ground reference. Some other pins are connected to passive components such as resistors and capacitors, which are usually used to stabilize the working conditions of the circuit or filter. Other pins are connected to other chips, such as voltage regulators, crystal oscillators, etc., which are necessary parts to form a complete system. In addition, two power inputs are marked on the edge of the circuit board: one is VDD and the other is VSYS. These two power supplies enter the circuit through different paths and have passed corresponding protection measures, such as current limiting resistors and decoupling capacitors.

[0154] Fig. 9 FIG. 1 shows a circuit diagram of a handle control unit in an oral care device provided in one embodiment of the present specification, such as Fig. 9 As shown:

[0155] The circuit of the handle control unit is mainly composed of the following parts:

[0156] Input port: The input port of the circuit is L+ and GND, which means it is connected to the receiving coil of the wireless charging.

[0157] Output port: The output port of the circuit is VBAT, which means that the circuit is connected to a lithium battery.

[0158] Components: The components in the circuit mainly include wireless charging receiving IC, resistors and capacitors, coils, etc.

[0159] Functional description: The wireless charging receiving IC integrates rectification, voltage regulation, and charging management functions. The charging current can be set by R4 (3.3KΩ), and the battery can be automatically charged with trickle current, constant current, and constant voltage according to the battery status to extend the battery life. In addition, the circuit also has an overcharge protection function, and it will automatically stop charging when the battery is full.

[0160] Fig.10 FIG. 1 shows a circuit diagram of a MOS switch in an oral care device provided by an embodiment of the present specification, such as Fig.10 As shown:

[0161] The circuit of MOS switch mainly consists of the following parts:

[0162] Input port: The input port of the circuit is a dual power supply BUCK_5.0V and TYPE_C_V5.0V, which means that the circuit needs to be powered by a step-down DC / DC converter and an external TYPE C power supply.

[0163] Output port: The output port of the circuit is TX_5.0V, which means that the circuit can output a stable 5V voltage for use by downstream devices.

[0164] Components: The components in the circuit mainly include diodes, transistors, P-channel MOS tubes, resistors (R25-R27) and capacitors (C1).

[0165] By adjusting the high and low levels of the transistor base, the conduction and shutdown of the P-channel MOS tube are controlled, thereby realizing the opening and closing of the wireless charging module.

[0166] Fig.11 FIG. 1 shows a circuit diagram of a data sending unit in an oral care device provided by an embodiment of the present specification, such as Fig.11 As shown:

[0167] The data sending unit mainly consists of the following parts:

[0168] Power port: The power port of the circuit is 2.4G_3.0V. The circuit needs to use RF signals in the 2.4GHz band for communication.

[0169] Communication port: The output ports of the circuit are IIC_DATA and IIC_CLK, indicating that the circuit can use I2C communication.

[0170] Components: The components in the circuit mainly include crystal oscillator (X1), resistors (R54-R58), capacitors (C1) and wireless communication module.

[0171] Functional description: The main function of the circuit is to convert the data on the I2C bus into wireless radio frequency signals for transmission through the wireless communication module. At the same time, the circuit also has a frequency synthesis function, which generates a high-frequency oscillation signal through the crystal oscillator X1, and then undergoes internal frequency multiplication processing in the 2.4G wireless communication IC (U10) to finally obtain the required transmission frequency.

[0172] See also Fig.12 , Fig.12 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 a host of the oral care device, the oral care device further comprising a handle, a wireless charging module and a sensor group. The host comprises a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle is fluidically connected to the host, the handle can be adjustably connected to the host via magnetic attachment, the sensor group comprises a first sensor unit connected to the host and a second sensor unit connected to the handle, and the method comprises the following specific steps:

[0173] Step 1202: generating a charging trigger signal when the distance between the first sensor unit and the second sensor unit is smaller than the Hall effect trigger distance;

[0174] Step 1204: In response to the charging trigger signal, the wireless charging module is turned on to transmit the power of the host to the handle.

[0175] The embodiments of this specification are similar to the above Figure 1 The embodiments of the specification are based on the same inventive concept. The specific contents of step 1202 and step 1204 can be found in the above-mentioned embodiments of the specification, which will not be repeated here.

[0176] In the embodiments of the present specification, when the distance between the first sensor unit and the second sensor unit is smaller than the Hall effect trigger distance, the Hall effect is triggered to generate a charging trigger signal. In response to the charging trigger signal, the wireless charging module is automatically turned on to transmit the power of the host to the handle, thereby effectively saving resources, reducing usage costs and safety hazards, and improving the product life of the oral care device.

[0177] The following combination Fig.13 Taking the application of the charging method of the oral care device provided in this specification in the flushing machine as an example, the charging method of the oral care device is further described. Fig.13 A process flow chart of a charging method for an oral care device applied to an all-in-one flushing machine provided by an embodiment of the present specification is shown. The method is applied to a main unit of the all-in-one flushing machine. The all-in-one flushing machine also includes a handle, a wireless charging module and a sensor group. The main unit includes a fluid reservoir and a pump connected to the fluid reservoir. The handle is fluidically connected to the main unit. The handle can be adjustably connected to the main unit via a magnetic attachment structure. The sensor group includes a Hall element connected to the main unit and a first magnetic member connected to the handle. Specifically, the following steps are included.

[0178] Step 1302: The host control unit MCU of the flushing machine host detects whether the handle of the flushing machine is placed on the host by determining whether the distance between the Hall element and the first magnetic component is smaller than the Hall effect triggering distance.

[0179] Step 1304: When the distance between the Hall element and the first magnetic component is greater than the Hall effect trigger distance, the host control unit MCU generates a power-off trigger signal, and controls the MOS switch through the host control unit MCU to turn off the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0180] Step 1306: When the distance between the Hall element and the first magnetic member is smaller than the Hall effect trigger distance, the host control unit MCU generates a charging trigger signal.

[0181] Step 1308: When it is detected that the handle has been placed on the host, the handle power is less than or equal to the handle power threshold (30% power), the handle is not in charging state and the host currently has sufficient power, a charging instruction is generated by the handle control unit, and the charging instruction is sent to the 2.4G data receiving unit through the 2.4G data sending unit.

[0182] Step 1310: In response to the charging trigger signal, a charging instruction is received through the 2.4G data receiving unit, and the power level of the handle is compared with the current power level of the host to determine whether the power balance condition is met.

[0183] Step 1312: If not, the host control unit MCU controls the MOS switch to open the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0184] Step 1314: If yes, the host control unit MCU controls the MOS switch to close the power supply circuit for the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0185] Step 1316: When the handle power is less than or equal to the handle power threshold (30% power), the handle is in charging state and the host current power is insufficient, a charging disconnection instruction is generated by the handle control unit, and the charging disconnection instruction is sent to the 2.4G data receiving unit through the 2.4G data sending unit.

[0186] Step 1318: In response to the charging trigger signal, the charging disconnection instruction is received through the 2.4G data receiving unit, and the MOS switch is controlled by the host control unit MCU to close the power supply circuit of the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0187] Step 1320: When the handle power level is greater than the handle power threshold (30% power), a charge disconnection instruction is generated by the handle control unit, and the charge disconnection instruction is sent to the 2.4G data receiving unit via the 2.4G data sending unit.

[0188] Step 1322: In response to the charging trigger signal, the charging disconnection instruction is received through the 2.4G data receiving unit, and the MOS switch is controlled by the host control unit MCU to close the power supply circuit of the wireless charging transmitting unit to transmit the alternating electromagnetic field to the wireless charging receiving unit.

[0189] In the embodiment of this specification, the wireless charging circuit can be turned off when the handle is fully charged, and the wireless charging circuit can be turned off when the handle is not placed, avoiding unnecessary power loss of the host battery; the handle turns on the charging function as needed to achieve power balance between the handle and the host, which can prevent the handle from being charged frequently. This effectively saves resources, reduces usage costs and safety hazards, and improves the product life of the flushing machine.

[0190] Fig.14 FIG. 1 shows a front view of a flushing machine provided by an embodiment of the present specification, such as Fig.14 As shown:

[0191] The integrated flushing machine comprises a handle and a main unit.

[0192] 1. Handle; 1.3 Wireless charging receiving coil; 1.4 Third magnetic component; 1.5 First magnetic component; 1.6 Third magnetic component;

[0193] 2. Host; 2.2. Wireless charging transmitting coil; 2.3. Second magnetic component; 2.4. Hall element; 2.5. Second magnetic component.

[0194] Fig.15 A three-dimensional schematic diagram of a flushing machine provided by an embodiment of this specification is shown. Fig.15 As shown:

[0195] The main unit has a handle placement position, which is fluidically connected to the bottom end of the handle through a fluid connection pipe.

[0196] The handle of the flushing machine is placed in the handle placement position of the main unit, and there is a button and an indicator light on the handle. The button is located in the middle, and the indicator light is near the top. A replaceable oral care head is configured at the top of the handle, and the bottom end is fluidically connected to the main unit through a fluid connection tube.

[0197] Fig.16 FIG. 1 shows an exploded view of a flushing machine provided by an embodiment of the present specification, such as Fig.16 As shown:

[0198] Inside the handle, there are the following parts:

[0199] Movement bracket (1.0): The basic structure that supports other movement components.

[0200] Motor bracket (1.1): A bracket used to fix the motor and other related components.

[0201] Handle magnet fixing frame (1.2): a structure for fixing the handle magnet.

[0202] Third installation groove (1.2.1): a groove for installing the third magnetic member.

[0203] First installation groove (1.2.2): a groove for installing the second magnetic member.

[0204] Third installation groove (1.2.3): a groove for installing the third magnetic member.

[0205] Receiving coil (1.3): used for functions such as wireless charging or energy transfer.

[0206] Magnets (1.4 / 1.5 / 1.6): These magnets are fixed in different positions to achieve magnetic connection and Hall effect sensing functions.

[0207] Battery (1.7): The battery that powers the device.

[0208] Handle (1.8): The part of the device that the user holds.

[0209] Handle barrel shell (1.8.1): The outer shell of the handle barrel.

[0210] The main components of the host include the following parts:

[0211] Main shell (2.1): The outer protective shell of the host, covering the entire host.

[0212] Handle placement position (2.1.1): The placement position on the main unit housing for placing the handle.

[0213] Transmitter coil (2.2): used for wireless charging or energy transmission, etc.

[0214] Magnet (2.3): Similar to the magnet in the movement assembly, it enables magnetic attachment.

[0215] Hall switch (2.4): A sensor based on the detection of magnetic field changes, usually used to detect changes in magnetic field strength and direction.

[0216] Magnet (2.5): Similar to the magnet inside the handle, used for magnetic connection.

[0217] Main body magnet fixing frame (2.6): a structure for fixing the magnet of the main body.

[0218] PCBA motherboard (2.7): Printed circuit board assembly, which contains various electronic components and control logic of the device.

[0219] Battery compartment (2.8): a space for storing batteries, used to protect and store batteries.

[0220] Host battery pack (2.9): The main power source of the device, consisting of multiple batteries.

[0221] Main body bottom shell (2.10): The outer shell part at the bottom of the equipment, which plays a role of protection and support.

[0222] 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.

[0223] 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.

[0224] 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.

[0225] 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.

[0226] 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.

[0227] 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.

[0228] It should be noted that, for the above-mentioned method embodiments, for the sake of simplicity of description, they are all expressed 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, some 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.

[0229] 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.

[0230] 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 invention comprises a main unit, a handle, a wireless charging module and a sensor group, 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, and the sensor group comprises a first sensor unit connected to the main unit and a second sensor unit connected to the handle; The host is used to generate a charging trigger signal when the distance between the first sensor unit and the second sensor unit is less than the Hall effect trigger distance, and in response to the charging trigger signal, turn on the wireless charging module to transmit the power of the host to the handle.

2. The oral care device according to claim 1, characterized in that The first sensor unit is a Hall element, and the second sensor unit is a first magnetic element; The host is further configured to generate a charging trigger signal through the Hall element when the distance between the Hall element and the first magnetic component is smaller than the Hall effect trigger distance.

3. The oral care device according to claim 2, characterized in that: The host further includes a second magnetic member, wherein the second magnetic member and the first magnetic member are used to attach the handle to a handle placement position of the host; Or the handle further includes a third magnetic member, and the second magnetic member and the third magnetic member are used to attach the handle to the handle placement position of the host.

4. The oral care device according to any one of claims 1 to 3, characterized in that: The host further includes a host control unit and a data receiving unit, and the handle further includes a handle control unit and a data sending unit; The handle is used to generate a charging instruction through the handle control unit when the handle power is less than or equal to the handle power threshold, and send the charging instruction to the data receiving unit through the data sending unit; The host is also used to respond to the charging trigger signal, receive the charging instruction through the data receiving unit, and activate the wireless charging module through the host control unit to transmit the power of the host to the handle.

5. The oral care device according to claim 4, characterized in that: The host is also used to respond to the charging trigger signal, receive the charging instruction through the data receiving unit, compare the handle power and the current host power of the host, determine whether the power balance condition is reached, and if not, turn on the wireless charging module through the host control unit to transfer the host's power to the handle.

6. The oral care device according to claim 5, characterized in that: The handle is also used to generate a charging instruction through the handle control unit and send the charging instruction to the data receiving unit through the data sending unit when the handle power is less than or equal to a handle power threshold, the handle is not in a charging state, and the host currently has sufficient power.

7. The oral care device according to claim 5, characterized in that: The handle is further used to generate a charging disconnection instruction through the handle control unit and send the charging disconnection instruction to the data receiving unit through the data sending unit when the handle power is less than or equal to the handle power threshold, the handle is in a charging state, and the host currently has insufficient power; The host is further configured to respond to the charging trigger signal, receive the charging disconnection instruction through the data receiving unit, and shut down the wireless charging module through the host control unit.

8. The oral care device according to claim 4, characterized in that The host is also used to respond to the charging trigger signal, receive the charging instruction through the data receiving unit, compare the handle power and the current host power of the host, determine whether the power balance condition is reached, and if so, turn off the wireless charging module through the host control unit.

9. The oral care device according to claim 1, characterized in that: The host is also used to determine whether the host is in a charging state. When the host is not in a charging state and the distance between the first sensor unit and the second sensor unit is less than the Hall effect trigger distance, a charging trigger signal is generated. In response to the charging trigger signal, the wireless charging module is turned on to transmit the power of the host to the handle.

10. The oral care device according to claim 1, wherein: The host is also used to determine whether the host is in a charging state, and when the host is in a charging state, turn on the wireless charging module.

11. The oral care device according to any one of claims 1 to 3, characterized in that: The host further includes a host control unit and a data receiving unit, and the handle further includes a handle control unit and a data sending unit; The handle is used to generate a charging disconnection instruction through the handle control unit when the handle power is greater than the handle power threshold, and send the charging disconnection instruction to the data receiving unit through the data sending unit; The host is further configured to respond to the charging trigger signal, receive the charging disconnection instruction through the data receiving unit, and shut down the wireless charging module through the host control unit.

12. A method for charging an oral care device, characterized in that: A host applied to the oral care device, the oral care device further comprising a handle, a wireless charging module and a sensor group, the host comprising a fluid reservoir and a pump fluidically connected to the fluid reservoir, the handle being fluidically coupled to the host, the sensor group comprising a first sensor unit connected to the host and a second sensor unit connected to the handle, the method comprising: generating a charging trigger signal when the distance between the first sensor unit and the second sensor unit is smaller than the Hall effect trigger distance; In response to the charging trigger signal, the wireless charging module is turned on to transmit the power of the host to the handle.

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