阅读说明：本技术 一种充电防水提示方法及个人护理器具 (Charging waterproof prompting method and personal care appliance ) 是由 王小伍 沈代华 林俊宏 于 2021-06-07 设计创作，主要内容包括：本发明公开一种充电防水提示方法,充电防水提示方法应用于个人护理器具,个人护理器具包括充电底座和密封件；密封件可相对充电底座运动以使充电底座具有密封状态和敞开状态；充电防水提示方法包括：判断个人护理器具是否处于充电状态；若否,则检测是否存在报警信号；若检测到报警信号,则根据所述报警信号控制所述个人护理器具发出提示信息。本发明提供的充电防水提示方法,当用户未密封或未正确密封充电接口时,可以将相应的提示信息传达给用户,以提示用户密封充电底座。(The invention discloses a waterproof charging prompting method, which is applied to a personal care appliance, wherein the personal care appliance comprises a charging base and a sealing piece; the sealing member can move relative to the charging base so that the charging base has a sealing state and an opening state; the charging waterproof prompting method comprises the following steps: determining whether the personal care appliance is in a charging state; if not, detecting whether an alarm signal exists; and if the alarm signal is detected, controlling the personal care appliance to send out prompt information according to the alarm signal. According to the charging waterproof prompting method provided by the invention, when the user does not seal or correctly seal the charging interface, corresponding prompting information can be transmitted to the user so as to prompt the user to seal the charging base.)

1. A waterproof charging alert method applied to a personal care appliance comprising a charging base and a seal; the sealing member is movable relative to the charging base to provide the charging base with a sealed state and an open state; the charging waterproof prompting method comprises the following steps:

determining whether the personal care appliance is in a charging state;

if not, detecting whether an alarm signal exists;

and if the alarm signal is detected, controlling the personal care appliance to send out prompt information according to the alarm signal.

2. The waterproof charging prompting method according to claim 1, wherein the detecting whether the alarm signal exists comprises:

under the non-charging state, acquiring a current analog signal value of the charging base;

determining the connection state of the current charging base and the sealing element according to the relation between the current analog signal value and the designated threshold value;

when the base that charges is open state, send alarm signal, open state is: the charging base is communicated with the outside.

3. The waterproof prompt method that charges of claim 2, further comprising:

monitoring whether the charging base recovers a sealing state;

when the base that charges resumes encapsulated situation, no longer send alarm signal, encapsulated situation is: the seal seals the charging base.

4. The waterproof prompt method that charges of claim 2, further comprising:

the specified threshold value is any analog signal value of the charging base in a sealing state, and the sealing state is as follows: the seal seals the charging base.

5. The waterproof prompt method that charges of claim 2, further comprising: the analog signal is an electrical signal.

6. The waterproof prompt method for charging according to claim 1, wherein before the detecting whether the alarm signal exists, the method further comprises:

determining not to perform the step of detecting whether an alarm signal is present in response to an operation by a user.

7. The waterproof prompt method for charging according to claim 1, wherein the prompt message is at least one of a flashing indicator light, a color change of the indicator light, a prompt tone and a vibration change of a motor.

8. A personal care appliance comprises a charging base and a sealing piece, wherein the sealing piece is used for sealing the charging base, and the personal care appliance is characterized by further comprising a control unit, an alarm unit and at least one signal detection unit, wherein the control unit is electrically connected with the signal detection unit and the alarm unit; the control unit acquires the analog signal output by the signal detection unit and controls the alarm unit to send prompt information according to the analog signal; the sealing member is movable relative to the charging base to enable the sealing member and the charging base to have different connection states, and the analog signal is determined by the connection states of the charging base and the sealing member.

9. The personal care appliance of claim 8, wherein the signal detection unit comprises a first signal member disposed on the charging base and a second signal member disposed on the seal member, at least a portion of the second signal member moving synchronously with the seal member.

10. The personal care appliance of claim 8, wherein the signal detection unit comprises at least one of a light sensitive sensor, an infrared sensor, a distance sensor, an image sensor, a force sensor.

Technical Field

The invention belongs to the technical field of personal care appliances, and particularly relates to a charging waterproof prompting method and a personal care appliance.

Background

Wired charging is more and more widely applied to personal care appliances because of the characteristics of fast charging, strong universality and the like, and when the electric quantity of a battery in the personal care appliance is used up, the battery needs to be electrically connected to an external power supply through a charging interface so as to be charged. The service environment of the personal care appliance, such as an electric toothbrush, a tooth rinsing device, a depilating instrument or a shaver, often has water, the water enters the personal care appliance through a charging interface for avoiding the external water, a sealing element is usually arranged for sealing and waterproofing the charging interface, a user can charge the personal care appliance in need, the sealing element is detached from the handle so as to expose the charging interface, the personal care appliance is convenient to be connected with an external power supply, and after the charging is completed, the sealing element is installed on the handle so as to seal the charging interface.

There is the user in the completion of charging or when using because the risk of falling the reason such as the unsealed or not correctly sealed interface that charges, when electric toothbrush was in the environment that has water, outside water got into the inside personal care utensil via the interface that charges, led to the inside electronic components of personal care utensil to damage for the life greatly reduced of personal care utensil. In addition, current personal care utensil base casing and handle casing are moulded plastics respectively and are formed, and the interface that charges is installed on base casing, is connected to the handle with base casing again on, except setting up the sealed interface that charges of sealing member, need set up the gap between sealing member sealing base casing and the handle in addition, and water-proof effects is poor.

Disclosure of Invention

It is an object of the present invention to provide a waterproof charging alert method that solves one or more of these problems, applied to a personal care appliance, such as an electric toothbrush, a tooth rinsing device, a hair removal device or a shaver, and that, when the personal care appliance is not in a non-charging state and the user does not seal or properly seal the charging interface, the personal care appliance sends an alert message to the user to remind the user to seal the charging interface in time after charging is completed, thereby preventing water from entering the electrical components inside the personal care appliance from the charging interface. The invention also provides a personal care appliance.

The technical scheme of the invention is to provide a waterproof charging prompting method, which is applied to a personal care appliance, wherein the personal care appliance comprises a charging base and a sealing element; the sealing member is movable relative to the charging base to provide the charging base with a sealed state and an open state; the charging waterproof prompting method comprises the following steps:

determining whether the personal care appliance is in a charging state;

if not, detecting whether an alarm signal exists;

and if the alarm signal is detected, controlling the personal care appliance to send out prompt information according to the alarm signal.

In one embodiment, said detecting the presence of an alarm signal comprises:

under the non-charging state, acquiring a current analog signal value of the charging base;

determining the connection state of the current charging base and the sealing element according to the relation between the current analog signal value and the designated threshold value;

when the base that charges is open state, send alarm signal, open state is: the charging base is communicated with the outside.

In one embodiment, the waterproof charging prompt method further includes:

monitoring whether the charging base recovers a sealing state;

when the base that charges resumes encapsulated situation, no longer send alarm signal, encapsulated situation is: the seal seals the charging base.

In one embodiment, the waterproof charging prompt method further includes:

the specified threshold value is any analog signal value of the charging base in a sealing state, and the sealing state is as follows: the seal seals the charging base.

In one embodiment, the waterproof charging prompt method further includes:

the analog signal is an electrical signal.

In one embodiment, before detecting whether the alarm signal exists, the waterproof charging prompting method further includes:

determining not to perform the step of detecting whether an alarm signal is present in response to an operation by a user.

In one embodiment, the prompt message is at least one of a flashing indicator light, a color change of an indicator light, a warning tone, and a vibration change of a motor.

The invention also provides a personal care appliance, which comprises a charging base and a sealing piece, wherein the sealing piece is used for sealing the charging base; the control unit acquires the analog signal output by the signal detection unit and controls the alarm unit to send prompt information according to the analog signal; the sealing member is movable relative to the charging base to enable the sealing member and the charging base to have different connection states, and the analog signal is determined by the connection states of the charging base and the sealing member.

In one embodiment, the signal detection unit includes a first signal member disposed on the charging base and a second signal member disposed on the sealing member, at least a portion of the second signal member moving synchronously with the sealing member.

In one embodiment, the first signal component is a conductive portion, the second signal component is a conductive portion, the conductive portion includes a first conductive portion and a second conductive portion with a gap therebetween, the conductive portion and the conductive portion have:

in a connection state, one end of the conductive piece is connected with the first conductive part, the other end of the conductive piece is connected with the second conductive part, and the first conductive part and the second conductive part are conducted through the conductive piece;

and a separated state in which at least one of the first conductive portion and the second conductive portion and the conductive member are separated from each other, the electrical connection between the first conductive portion and the second conductive portion being in an open state.

In one embodiment, the first signal member is a hall sensor and the second signal member is a magnet.

In one embodiment, the signal detection unit includes at least one of a photosensitive sensor, an infrared sensor, a distance sensor, an image sensor, and a force sensor.

According to the technical scheme, when the personal care appliance is in a non-charging state and a charging interface is not sealed or not correctly sealed by a user, the personal care appliance sends prompt information to the user, wherein the prompt information can be one or more of indicator lamp color change, indicator lamp flicker or constant brightness, prompt sound or motor vibration, so that the user is reminded to seal the charging interface in time after charging is completed, the risk that external water enters the personal care appliance through the charging interface is effectively reduced, the service life of the personal care appliance is effectively ensured, and the user experience is improved. The invention also provides a personal care appliance which may be one of an electric toothbrush, a dental irrigator, a depilatory device or a shaver.

Drawings

The above-mentioned and other features and advantages of this disclosure, and the manner of attaining them, will become more apparent and the disclosure itself will be better understood by reference to the following description of non-limiting embodiments of the disclosure taken in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic perspective view of a personal care appliance in an embodiment of the invention;

FIG. 2 is a schematic view of the internal structure of a personal care appliance in an embodiment of the invention;

FIG. 3 is a schematic diagram of an internal structure of the signal detecting unit in FIG. 2;

FIG. 4 is a schematic view of a handle of a personal care appliance;

FIG. 5 is a cross-sectional view of a handle of a personal care appliance;

FIG. 6 is an enlarged view of portion A of the handle of the personal care appliance shown in FIG. 5;

FIG. 7 is an enlarged view of portion A of another embodiment of the handle of the personal care appliance shown in FIG. 5;

FIG. 8 is a schematic view of a handle housing in a handle of a personal care appliance;

FIG. 9 is a schematic view of a charging circuit board in the handle of the personal care appliance;

FIG. 10 is a schematic view of a conductive member in a handle of a personal care appliance;

FIG. 11 is a schematic view of a seal in a handle of a personal care appliance;

fig. 12 is a schematic flow chart of a charging waterproof prompt method according to an embodiment of the present invention;

FIG. 13 is an electrical circuit diagram of a personal care appliance in accordance with the present invention;

wherein, in the figures, the respective reference numerals:

100-an electric toothbrush; 10-a handle; 11-a handle housing; 111-a light-transmitting portion; 112-a first mounting cavity; 113-a second mounting cavity; 12-a movement assembly; 121-movement bracket; 122-a power supply; 123-a control component; 124-a motor; 13-a charging base; 131-a conductive portion; 1311-a first conductive portion; 1312-a second conductive portion; 132-a charging interface; 133-a charging circuit board; 134-a base housing; 1341-a first via; 1342-a second via; 1343-a third via; 135-a first sealing ring; 136-a sensor; 14-a seal; 141-a cover body; 1411-a second sealing ring; 1412-third seal ring; 142-a connecting column; 1421 a rod body; 1422-limit boss; 143-a conductive member; 1431 — a conductive post; 1432-limit part; 144-a magnet; 15-a control unit; 16-an alarm unit; 17-a signal detection unit; 171-a first signal member; 172-a second signal piece; 20-brush head.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as implying or implying relative importance or implicitly indicating the number of technical features mentioned. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In addition, technical solutions between various embodiments can be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not be within the scope of the disclosure of the present invention.

In the following description, suffixes such as "module", "part", "assembly", or "unit" are used only for convenience of description of the present invention, and have no specific meaning by themselves, and thus may be used mixedly.

The present invention will be described in further detail with reference to the following detailed description and accompanying drawings.

As shown in fig. 1-13, the present invention provides a personal care appliance, such as a power toothbrush 100, which may also be a dental irrigator, shaver or epilator, comprising a handle 10 and a brush head 20, the brush head 20 being detachably connected to the handle 10. The handle 10 comprises a handle shell 11 for being held by a user, a movement assembly 12 installed in an inner cavity of the handle shell 11, and a charging base 13 for charging the movement assembly 12. One end of the movement assembly 12 exposed out of the inner cavity of the handle shell 11 is connected with the brush head 20, and the charging base 13 is installed in the inner cavity of the handle shell 11 and connected with the other end of the movement assembly 12. The movement assembly 12 comprises a movement bracket 121, a power supply 122, a control assembly 123 and a motor 124, wherein the power supply 122, the control assembly 123 and the motor 124 are fixed on the movement bracket 121, the brush head 20 is connected to the motor 124, and the power supply 122 supplies power to the motor 124 and drives the brush head 20 to move under the control of the control assembly 123. The handle 10 further comprises a sealing member 14, the sealing member 14 is detachably connected with the handle housing 11 or the charging base 13, and the sealing member 14 is used for sealing and waterproofing the charging base 13 and playing a role in dust prevention.

In addition to the above-described structure, the electric toothbrush 100 of the present invention is provided with a special charging waterproof notice structure, which is also an important innovation point of the present invention. The waterproof prompt means that when the sealing member 14 is not sealed or the charging base 13 is not correctly sealed, the electric toothbrush transmits corresponding prompt information to the user to prompt the user to seal the charging base 13 in time.

Referring to fig. 2, the waterproof charging prompt structure includes a control unit 15, an alarm unit 16 and at least one signal detection unit 17, wherein the control unit 15 is electrically connected to the signal detection unit 17 and the alarm unit 16; the control unit 15 acquires the analog signal output by the signal detection unit 17 and controls the alarm unit 16 to send prompt information according to the analog signal; the sealing member 14 is movable relative to the charging base 13 to allow the sealing member 14 and the charging base 13 to have different connection states, and the analog signal is determined by the connection states of the charging base 13 and the sealing member 14. Specifically, the sealing member 14 is movable relative to the charging base 13 to provide the charging base 13 with a sealed state and an open state.

Referring to fig. 3, the signal detecting unit 17 includes a first signal member 171 and a second signal member 172, the first signal member 171 is disposed on the charging base 13, the second signal member 172 is disposed on the sealing member 14, and at least a portion of the second signal member 172 moves synchronously with the sealing member 14.

Referring to fig. 6, in a preferred embodiment, the first signal component 171 is a conductive component 131, the second signal component 172 is a conductive component 143, and the waterproof prompting structure includes the conductive component 131 disposed on the charging base 13 and the conductive component 143 mounted on the sealing component 14. At least a portion of conductive element 143 moves in synchronization with sealing member 14 so that conductive element 143 has a connected state and a disconnected state with conductive portion 131. When sealing member 14 is detached from handle housing 11 or charging base 13, conductive member 143 moves in a direction away from conductive portion 131 to put conductive member 143 and conductive portion 131 in a separated state, and when sealing member 14 is hermetically attached to handle housing 11 or charging base 13, conductive member 143 moves in a direction close to conductive portion 131 to put conductive member 143 and conductive portion 131 in an attached state. Waterproof alert structure further includes an alert unit 16 responsive to the connection and disconnection states of conductive elements 143 and conductive portion 131, alert unit 16 communicating information to a user containing various alerts.

Referring to fig. 8-10, in a preferred embodiment, conductive portion 131 includes a first conductive portion 1311 and a second conductive portion 1312, a gap is formed between first conductive portion 1311 and second conductive portion 1312, conductive portions 143 and 131 have a connection state and a disconnection state, in the connection state, one end of conductive portion 143 is connected to first conductive portion 1311, the other end of conductive portion 143 is connected to second conductive portion 1312, first conductive portion 1311 and second conductive portion 1312 are electrically connected through conductive portion 143, and provide corresponding analog signals to control component 123; in the separated state, at least one of first conductive portion 1311 and second conductive portion 1312 and conductive portion 143 are separated from each other, the electrical connection between first conductive portion 1311 and second conductive portion 1312 is in an open state, and a corresponding analog signal is provided to control component 123. The conductive portion 131 may be a conductive contact or a conductive film. The conductive member 143 may be one of conductive silicone, conductive sponge, and metal.

Referring to fig. 7, in a preferred embodiment, the first signal member 171 is a sensor 136, specifically, the first signal member 171 is a hall sensor, and the second signal member 172 is a magnet 144. The hall sensor is a hall effect sensor capable of measuring the strength of the magnetic field within the handle housing 11. The magnetic field can be generated by a magnet 144 mounted on the seal 14, which in the exemplary embodiment employs a hall effect sensor to measure the magnetic field strength relative to the hall effect sensor. When the seal 14 is removed from the handle housing 11 or the charging base 13, the magnet 144 moves away from the sensor 136 to cause a deformation of the magnetic field within the handle housing 11, which is measured via the sensor 136, and may provide an analog signal to the control unit 15 regarding the connection status information of the seal 14 to the charging base 13. A threshold value can be set, below which the seal 14 does not seal or does not properly seal the charging base 13 when the magnetic field strength measured by the hall sensor is less than the threshold value; when the magnetic field strength measured by the hall sensor is greater than the threshold value, the seal 14 properly seals the charging base 13.

In a preferred embodiment, the sensor 136 may be at least one of a force sensor, a light-sensitive sensor, an infrared sensor, a distance sensor, and an image sensor. At this time, the magnet 144 may be eliminated, and the signal detecting unit 17 has only the first signal member 171 and no second signal member 172. The sensor 136 allows information to be extracted from the electric toothbrush 100 corresponding to the connection state of the sealing member 14 and the charging base 13.

Referring to fig. 4, in a preferred embodiment, the alarm unit includes at least one of a light emitting part, a sound emitting part, and a vibration part. Specifically, the alarm unit includes an indicator light, a light-transmitting portion 111 is disposed on the handle housing 11 at a position corresponding to the indicator light, and the light-transmitting portion 111 may be an opening or a laser engraved pattern on a light-shielding layer, so that light of the indicator light can pass through the light-transmitting portion to be visible to a user. The prompt information can be the change of the light color, when the sealing element 14 correctly seals the charging base 13, a corresponding analog signal is provided to the control unit 15, and the control unit 15 receives the electric signal and controls the corresponding prompt lamp to display green; when the sealing member 14 does not seal or does not seal the charging base 13 correctly, a corresponding analog signal is provided to the control unit 15, the control unit 15 receives the electric signal and controls the corresponding prompting lamp to display red, and a user can determine whether to seal the charging base 13 according to the prompting information, so that water is prevented from entering the movement assembly from the charging base 13 due to the fact that the charging base 13 is not sealed in time. The prompt information may also be a change of a light display mode, when the sealing member 14 correctly seals the charging base 13, the control unit 15 controls the corresponding prompt lamp to be not lit or to be lit constantly, and when the sealing member 14 does not seal or does not correctly seal the charging base 13, the control unit 15 controls the corresponding prompt lamp to flash. Alternatively, the alarm unit includes a motor 124, and when the sealing member 14 is not sealing or not sealing the charging base 13 properly, the control unit 15 controls the motor 124 to vibrate at a specific frequency or stop vibrating to alert the user that the sealing member 14 is not sealing or not sealing the charging base 13 properly. Alternatively, the alarm unit includes a sound emitting part, and the control unit 15 controls the sound emitting part to emit an alarm sound when the sealing member 14 is not sealed or not properly sealed with the charging base 13. Alternatively, the alarm unit includes a display screen that can display an "abnormal" or "normal" word to prompt the user. The alarm unit may include at least one of a light emitting part, a sound emitting part, and a vibration part, or a combination thereof.

Referring to fig. 8 to 11, in a preferred embodiment, the charging base 13 includes a charging interface 132, a charging circuit board 133 and a base housing 134, the base housing 134 is provided with a first through hole 1341, the charging interface 132 is installed on an inner side surface of the first through hole 1341, the charging interface 132 is hermetically connected to the first through hole 1341 through a first sealing ring 135, the charging interface 132 is electrically connected to the charging circuit board 133, and the conductive portion 131 is installed on the charging circuit board 133. But charging circuit board 133 bolt fastening is to core assembly 12 on, and the interface 132 that charges is connected to charging circuit board 133 in, during the installation, charging circuit board 133, the interface 132 that charges install from handle housing 11 upper end downwards together with core assembly 12, until the interface 132 that charges installs to in first through-hole 1341. Of course, the charging circuit board 133 can be eliminated, and the charging interface 132 and the conductive part 131 are electrically connected to the control component 123. The control unit 15 may be located on the control assembly 123.

In a preferred embodiment, the base housing 134 and the handle housing 11 can be formed by one-time injection molding, and there is no gap between the base housing 134 and the handle housing 11, and the connection between the two is stable and reliable. Of course, the base housing 134 may be formed separately from the handle housing 11 by injection molding, and then the base housing 134 and the charging interface 132 installed on the base housing 134 are installed in the handle housing 11, and at this time, a sealing structure is additionally provided to seal the gap between the base housing 134 and the handle housing 11. The handle housing 11 comprises a first mounting cavity 112 for mounting the cartridge assembly 12, the charging interface 132 and the charging circuit board 133, and a second mounting cavity 113 for mounting the seal 14. The open state of the charging base 13 is that the charging base 13 communicates with the outside, so that the charging interface 132 can be connected with an external power supply. The charging base 13 is sealed in a state that the sealing member 14 seals the charging base 13 to prevent foreign substances such as dust and moisture from entering the charging base 13.

In a preferred embodiment, the conductive element 143 is conductive silicone, a second through hole 1342 is formed on the base shell 134, and the conductive element 143 is disposed through the second through hole 1342. The conductive member 143 includes a conductive post 1431 and a limiting portion 1432, the conductive post 1431 can pass through the second through hole 1342 to contact with the conductive portion 131, and the cross-sectional area of the limiting portion 1432 is larger than that of the second through hole 1342, so as to limit the conductive member 143 from completely entering the first mounting cavity 112. When conductive element 143 is conductive silicone, conductive element 143 may prevent water from entering first mounting cavity 112 from second through hole 1342 when conductive element 143 is connected to conductive element 131. Meanwhile, the combination of the conductive member 143 and the second through hole 1342 can make the connection between the sealing member 14 and the base housing 134 more stable.

In a preferred embodiment, the sealing member 14 includes a cover 141 and a connecting column 142, a third through hole 1343 is formed in the base housing 134 for the connecting column 142 to pass through, and the connecting column 142 can move axially along the handle 10 relative to the base housing 134 so as to make the sealing member 14 abut against or separate from the charging base 13. The connecting column 142 includes a rod 1421 and a limiting boss 1422. The rod body 1421 is inserted into the third through hole 1343, and the rod body 1421 can move along the axial direction of the handle 10 relative to the third through hole 1343, so that the limit boss 1422 abuts against the base housing 134, and the sealing element 14 can be prevented from falling off from the handle 10. In this embodiment, the rod 1421 and the limiting boss 1422 are elastic members, so as to smoothly pass through the third through hole 1343. The cover 141 may be made of a soft rubber material, and the cover 141 is in interference fit with the inner wall of the second mounting cavity 113 to sealingly connect the sealing member 14 to the second mounting cavity 113. Preferably, the cover 141 has a second sealing ring 1411 and a third sealing ring 1412 on the outer side surface thereof to achieve multiple sealing of the charging base 13. The cover body 141 can include a hard glue portion and a soft glue portion, the soft glue portion is molded on the hard glue portion, the soft glue portion is used for sealing and waterproofing, and the hard glue portion is used for preventing the soft glue portion from deforming and losing efficacy.

Referring to fig. 12-13, the present invention further provides a method for prompting water-proof charging of a personal care appliance, including the electric toothbrush, comprising the following steps:

step S1: determining whether the personal care appliance is in a charging state;

if not, S2 is executed, and if yes, the flow ends.

Specifically, when the personal care appliance is charged in a wired manner, the sealing member 14 is generally detached from the handle housing 11 or the charging base 13, so that the charging base 13 is exposed, and particularly the charging interface 132 is exposed, so as to be connected to an external power source, and during the charging process, the sealing member 14 does not seal the charging base 13 all the time, that is, the charging base 13 is in an open state. Therefore, the method and the device need to judge whether the personal care appliance is in a charging state or not, if the personal care appliance is in the charging state, the process is ended, and waterproof prompt is not carried out; if not, the following steps are executed. The charging signal value may also be initialized before determining whether the personal care appliance is in a charging state, and the charging trigger signal may be received after the personal care appliance is initialized to a configuration. The state of charge can be determined by the control unit 15.

Step S2: detecting whether an alarm signal exists;

if so, S3 is executed, otherwise, the flow ends.

In the present application, it is necessary to detect whether an alarm signal is present if the personal care appliance is in a non-charging state. In a non-charging state, acquiring a current analog signal value of the charging base 13; comparing the current analog signal value with a specified threshold value, and determining the current connection state of the charging base 13 and the sealing element 14; when the charging base 13 is in an open state, an alarm signal is sent out. The designated threshold is any analog signal value of the charging base 13 in the sealed state, and may be preset according to actual requirements, and the designated threshold may be 0 or other number, and when the current analog signal value of the charging base 13 is in the designated threshold, the charging base 13 is in the sealed state at this time. The analog signal may be an electrical signal, such as an analog signal being one of a current, a voltage, a resistance, and a capacitance. If the analog signal value is gradually increased when the sealing member 14 moves away from the charging base 13, an alarm signal is sent out when the analog signal value is greater than a specified threshold value; if the analog signal value is gradually reduced when the sealing member 14 moves away from the charging base 13, an alarm signal is sent when the analog signal value is smaller than a specified threshold value. Before detecting whether the alarm signal exists, the analog signal corresponding to the charging base 13 can be initialized, and after the personal care appliance is initialized and configured, the analog signal corresponding to the charging base 13 is received. The analog signal may be detected by the signal detection unit 17 and sent to the control unit 15.

Step S3: and controlling the personal care appliance to send out prompt information according to the alarm signal.

It can be understood that after the alarm signal of the personal care appliance is acquired, the application can send prompt information to the user. The prompt information may be one of a display screen or an indicator light flashing, a color change of the display screen or the indicator light, a prompt tone or a motor vibration, or a combination of several kinds of information, for example, the alarm unit 16 for sending the prompt information includes a first alarm device and a second alarm device, the first alarm device is an alarm device visible to a user such as an indicator light, a display, etc., and reminds the user through the light flashing or the color change; the second alarm device is a vibration or sound device, such as a motor vibration frequency change or a buzzer or a loudspeaker. The analog signal may be provided by one of a sensor and a touch switch, and if provided by a sensor, the sensor may be one or more of a hall sensor, an infrared sensor, a distance sensor, a force sensor, and a light sensitive sensor.

Therefore, the invention detects whether the alarm signal exists or not in the non-charging state, and controls the personal care appliance to send out the prompt information according to the alarm signal if the alarm signal exists, so as to prompt the user to seal the charging interface 131 in time, thereby effectively reducing the risk that external water enters the personal care appliance through the charging interface, effectively ensuring the service life of the personal care appliance, improving the user experience, and solving the problem that the water enters the personal care appliance because the charging interface 131 is not sealed by the user in the prior art.

In one embodiment, before detecting whether the alarm signal exists, the waterproof charging prompting method further includes: and monitoring whether the charging base 13 recovers the sealing state, and when the charging base 13 recovers the sealing state, no alarm signal is sent out. After the user seals the charging base 13 in time, no alarm prompt is given.

In one embodiment, before detecting whether the alarm signal exists, the waterproof charging prompting method further includes:

determining not to perform the step of detecting whether an alarm signal is present in response to an operation by a user.

The description will be made in detail with an example in which the personal care appliance is an electric toothbrush, but the user does not need the waterproof charging prompt function. The user can turn off or cancel the function through the button of the electric toothbrush, so that the electric toothbrush is prevented from consuming electricity, and the service life is prolonged. The electric toothbrush may be provided with a charging mode, and when the user selects the charging mode, it is determined that the step of detecting whether the alarm signal exists is not performed, thereby avoiding unnecessary alarm. And a gravity sensor can be arranged, and the charging waterproof prompt function is started under the condition that the electric toothbrush has displacement.

According to the technical scheme, the personal care appliance with the waterproof prompt comprises a control unit 15, an alarm unit 16 and at least one signal detection unit 17, when a user does not seal or correctly seal a charging interface 131, the signal detection unit 17 sends an analog signal to the control unit 15, the alarm unit 16 responds to the analog signal and transmits corresponding prompt information to the user, the prompt information can be one or more of color change of a prompt lamp, twinkling or normal lighting of the prompt lamp, prompt sound or motor vibration, and prompts the user to seal the charging interface 131 in time, so that the risk that external water enters the personal care appliance through the charging interface is effectively reduced, the service life of the personal care appliance is effectively guaranteed, and the user experience is improved; handle casing 11 and base casing 134 once mould plastics and form, need not additionally to set up base casing 134, need not to set up seal structure between handle casing 11 and base casing 134 simultaneously, have simplified technology, have reduced manufacturing cost, have effectively promoted the water-proof effects of personal care utensil. The invention further provides a charging waterproof prompting method.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.