Brush head assembly, electric toothbrush and toothbrush set

Abstract

The invention provides a brush head assembly, an electric toothbrush and a toothbrush set. The brush head assembly comprises a brush rod, and a first containing cavity is formed in the brush rod. The super capacitor and the vibration part are installed in the first containing cavity, the super capacitor is connected with the vibration part, and the super capacitor is suitable for driving the vibration part to vibrate so as to drive the brush rod to vibrate; the bristles are arranged at the first end of the brush rod. The first containing cavity is formed in the brush rod, the super capacitor and the vibration part are both integrally arranged in the first containing cavity, and due to the fact that the super capacitor has the advantages of being small in size and large in capacitance compared with a common battery, the size of the brush rod can be set to be small, the brush head assembly can be set to be smaller, power consumption is reduced, and the service life of the brush head assembly is prolonged. Meanwhile, the vibration piece is arranged on the brush rod, the situation that in an existing scheme, the vibration piece is arranged on the toothbrush body, and large-power-consumption parts such as a long motor transmission shaft need to be arranged is avoided, and the power consumption of the electric toothbrush is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of toothbrushes, and in particular, to a brush head assembly, an electric toothbrush, and a toothbrush set. Background Art

[0002] In existing electric toothbrushes, the motor and the battery are both arranged on the brush handle. Since the mechanical losses caused by arranging the motor and the battery on the brush handle are large, and there are also components with high power consumption such as a charging chip and a motor transmission shaft in the brush handle, the power consumption is large. Therefore, the selected battery also needs a certain capacity, resulting in a larger body and uncomfortable use. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the related art. For this purpose, the present invention provides a brush head assembly, aiming to solve the defects of large volume and high power consumption of existing electric toothbrushes.

[0004] An embodiment of the second aspect of the present invention provides an electric toothbrush.

[0005] An embodiment of the third aspect of the present invention provides a toothbrush set.

[0006] The brush head assembly according to the embodiment of the first aspect of the present invention includes:

[0007] A brush rod, in which a first accommodation cavity is formed;

[0008] A super capacitor and a vibrating member, which are installed in the first accommodation cavity. The super capacitor is connected to the vibrating member, and the super capacitor is adapted to drive the vibrating member to vibrate, so as to drive the brush rod to vibrate;

[0009] Brush bristles, which are arranged at the first end of the brush rod.

[0010] In the brush head assembly according to the embodiment of the present invention, a first accommodation cavity is formed inside the brush rod, and the super capacitor and the vibrating member are both integrally arranged in the first accommodation cavity. Since the super capacitor has the characteristics of small volume and large capacitance compared with ordinary batteries, the volume of the brush rod can be further set smaller, so that the brush head assembly can be made more compact. At the same time, the vibrating member is arranged on the brush rod, avoiding the need to arrange the vibrating member on the body of the toothbrush and the need to set components with high power consumption such as a long motor transmission shaft in the existing solution, reducing the power consumption of the electric toothbrush.

[0011] In the brush head assembly according to the embodiment of the present invention, the super capacitor is a double-layer capacitor.

[0012] In the brush head assembly according to the embodiment of the present invention, the vibrating member is a coreless motor.

[0013] According to the brush head assembly of the embodiment of the present invention, a first contact assembly connected to the supercapacitor is provided at the second end of the brush rod, and the first contact assembly is adapted to be connected to an external power supply to charge the supercapacitor.

[0014] According to the electric toothbrush of the second aspect embodiment of the present invention, it includes a brush handle and the above-mentioned brush head assembly, and the brush rod is adapted to be detachably connected to the brush handle.

[0015] According to the electric toothbrush of the second aspect embodiment of the present invention, the brush handle forms a second accommodation cavity, and an operation board is arranged in the second accommodation cavity. The operation board is connected to the supercapacitor to adjust the power supply parameters of the supercapacitor.

[0016] According to the electric toothbrush of the second aspect embodiment of the present invention, an energy storage capacitor is arranged on the operation board, and the supercapacitor is adapted to be connected to the energy storage capacitor through the operation board to supply power to the energy storage capacitor.

[0017] According to the electric toothbrush of the second aspect embodiment of the present invention, the capacitance of the supercapacitor is greater than the capacitance of the energy storage capacitor.

[0018] According to the electric toothbrush of the second aspect embodiment of the present invention, when the first contact assembly is provided at the second end of the brush rod, the operation board is provided with a second contact assembly. When the brush rod is installed on the brush handle, the first contact assembly and the second contact assembly are in contact.

[0019] According to the toothbrush set of the third aspect embodiment of the present invention, it includes:

[0020] A charging stand, forming a charging slot;

[0021] The electric toothbrush according to any of the above embodiments, and the second end of the brush rod is adapted to be inserted into the charging slot to charge the brush head assembly.

[0022] According to the toothbrush set of the embodiment of the present invention, when the first contact assembly is provided at the second end, a third contact assembly is provided at the bottom of the charging slot. The third contact assembly is adapted to be connected to an external power supply. When the second end is inserted into the charging slot, the first contact assembly is in contact with the third contact assembly.

[0023] According to the toothbrush set of the embodiment of the present invention, the second end is provided with a first magnet, and the bottom of the charging slot is provided with a second magnet. When the second end is inserted into the charging slot, the first magnet and the second magnet attract each other.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, will become apparent in part from the following description, or will be learned through the practice of the present invention. Brief Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or in the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0026] Figure 1 is a schematic structural diagram of a brush head assembly provided by an embodiment of the present invention;

[0027] Figure 2 is a schematic structural diagram of an electric toothbrush provided by an embodiment of the present invention;

[0028] Figure 3 is a schematic charging diagram of a brush head assembly provided by an embodiment of the present invention.

[0029] Reference Numerals:

[0030] 110, brush rod; 111, first end; 112, second end; 120, supercapacitor; 130, vibrating member; 140, bristles; 150, first contact assembly;

[0031] 210, brush handle; 220, operation board; 230, energy storage capacitor; 240, second contact assembly;

[0032] 300, charging base; 310, charging slot; 320, third contact assembly; 330, charging plug. Detailed Embodiments

[0033] The following will further describe in detail the embodiments of the present invention in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0034] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0035] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0036] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0037] In the description of this specification, the descriptions with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0038] Embodiments of the present invention, refer to Figures 1 - 3 as shown, to provide a brush head assembly, an electric toothbrush, and a toothbrush set.

[0039] According to an embodiment of the present invention, as Figure 1 shown, the brush head assembly according to the embodiment of the present invention includes a brush rod 110, a supercapacitor 120, a vibrating member 130, and bristles 140. A first accommodation cavity is formed in the brush rod 110. The supercapacitor 120 and the vibrating member 130 are installed in the first accommodation cavity. The supercapacitor 120 is connected to the vibrating member 130, and the supercapacitor 120 is adapted to drive the vibrating member 130 to vibrate, so as to drive the brush rod 110 to vibrate. The bristles 140 are provided at the first end 111 of the brush rod 110.

[0040] It can be understood that in this embodiment, a first accommodation cavity is formed inside the brush rod 110, and the supercapacitor 120 and the vibration member 130 are both integrally arranged in the first accommodation cavity. Since the supercapacitor 120 has the characteristics of small volume and large capacitance compared with ordinary batteries, the volume of the brush rod 110 can be set smaller, so that the brush head assembly can be made more compact. At the same time, the vibration member 130 is arranged in the first accommodation cavity of the brush rod 110, avoiding the large-power-consuming components such as arranging the vibration member 130 on the body of the toothbrush and requiring a long motor drive shaft in the existing solutions, and reducing the power consumption of the electric toothbrush.

[0041] It can be understood that in the brush head assembly of this embodiment, since the supercapacitor 120 and the vibration member 130 are integrally arranged in the brush rod 110, the supercapacitor 120 can store electric energy and provide kinetic energy for the vibration member 130 to drive the vibration member 130 to vibrate, thereby driving the bristles 140 on the brush rod 110 to vibrate, facilitating the user to brush teeth. That is, the user can realize a simple toothbrushing function to a certain extent only through the brush head assembly of this embodiment, without setting complex components such as a body and a drive shaft, greatly reducing the volume of the toothbrush, facilitating the user to carry and use, and maximizing the effective work of the vibration member 130 on the brush rod 110 of the brush head assembly, greatly reducing the power consumption of the toothbrush.

[0042] In this embodiment, the supercapacitor 120 is used to store electric energy to supply power to the vibration member 130. The capacitance of the supercapacitor 120 is usually 0.1F - 1000F. Compared with traditional batteries or ordinary capacitors, the supercapacitor 120 can store energy with a higher energy density, that is, store more electric energy in a relatively small volume; the charge and discharge rate is fast, and it can reach more than 95% of its rated capacity after charging for 10 seconds to 10 minutes, greatly reducing the charging time of the toothbrush; the lifespan of the supercapacitor 120 is usually longer than that of traditional batteries. Since its working principle does not involve chemical reactions, there will be no situation of capacity attenuation caused by chemical changes similar to batteries, and the number of deep charge and discharge cycles can reach 10,000 to 500,000 times, which can extend the usage time of the electric toothbrush; the supercapacitor 120 has a super strong large-current discharge ability, high energy conversion efficiency, and small process loss, and the large-current energy cycle efficiency is ≥90%, while the energy cycle efficiency of ordinary batteries is only about 70%; the charge and discharge circuit of the supercapacitor 120 is simple, and there is no need to design an extremely complex charging circuit like a lithium battery, with a high safety factor and no need for frequent maintenance.

[0043] In this embodiment, the bristles 140 can be copper-inserted bristles or non-copper-inserted bristles.

[0044] In an alternative embodiment, as Figure 1As shown, the brush head assembly further includes a copper-free hair implanting block (not shown in the figure) installed at the first end 111 of the brush rod 110. The surface of the copper-free hair implanting block is configured with a hair implanting area, and the bristles 140 are arranged in the hair implanting area. When the bristles 140 are implanted into the hair implanting area, they are fixed on the copper-free hair implanting block by a hot-melt method, which can achieve 3D stereoscopic cutting of the bristles 140, making the bristles 140 more conform to the curvature of the tooth surface, and can brush the teeth clean to the greatest extent, improving the cleaning effect; moreover, the copper-free hair implanting technology can easily achieve hair implanting of various different shapes and sizes, meeting the needs of different consumers; the adhesion between the bristles 140 and the copper-free hair implanting block is closer and not easy to fall off, and the shape of the bristles 140 of the copper-free hair implanting is not easy to disperse during the production process, and can maintain a relatively stable state, thereby extending the service life.

[0045] Exemplarily, the bristles 140 and the copper-free hair implanting block are fixed by a copper-free hair implanting process, avoiding using metal sheets to fix the bristles 140, thereby avoiding health problems caused by oxidation and rust of the metal sheets. Specifically, the copper-free hair implanting block is provided with a plurality of hair implanting pores, and the bristles 140 are arranged into a plurality of bristle clusters in a certain shape. It is easy to understand that the cross-sectional shape of the bristle cluster matches the cross-sectional shape of the hair implanting pore. Each bristle cluster is sucked into a corresponding hair implanting pore by a vacuum extraction method, and then the back surface of the copper-free hair implanting block is fixed to the root of the bristle cluster by an ultrasonic welding method.

[0046] In this embodiment, optionally, the material of the bristles 140 can be polyamide 610 (PA610), which has high wear resistance, can maintain the shape and hardness of the toothbrush bristles 140, and has good stability to chemicals, can resist the erosion of chemical components in the toothpaste on the toothbrush bristles, and extends the service life. In addition to PA610, the material of the bristles 140 can also be PBT (polybutylene terephthalate) and PP (polypropylene). PBT has high strength and rigidity, while PP has good chemical resistance and low water absorption rate, and can be selected according to specific product design requirements and performance requirements. This embodiment does not make specific limitations on this.

[0047] In an alternative embodiment, the first end 111 of the brush rod 110 is generally fusiform, with a relatively pointed head and tail, so that the first end 111 can more easily adapt to the shape and size of the oral cavity, facilitating entry into the oral cavity for cleaning. The fusiform design can better adapt to the internal structure of the oral cavity, such as the shape of the teeth and gums, thereby cleaning the oral cavity more effectively and improving the cleaning efficiency.

[0048] According to an embodiment of the present invention, the supercapacitor 120 is an electric double layer capacitor.

[0049] It can be understood that according to the energy storage mechanism, the supercapacitor 120 can be divided into two categories: electric double-layer capacitors and pseudo-Faraday capacitors. The electric double-layer capacitor used in this embodiment has the characteristics of short charging time, long service life, good temperature characteristics, energy saving and environmental friendliness. The distance between the electric double layers of the electric double-layer capacitor is extremely small, resulting in very weak voltage resistance, generally not exceeding 20V, so it is very suitable for use in electric toothbrushes. The preferred electric double-layer type supercapacitor 120 of the present invention is an activated carbon electrode material. It uses activated carbon materials with a high specific surface area to form electrodes. Its advantages over ordinary supercapacitors are low cycle cost, good reversibility, very high charging and discharging rates, and simple charging methods. There is no need to perform overcharge detection because the electric double-layer capacitor has no possibility of overcharge.

[0050] According to an embodiment of the present invention, the vibrating member 130 is a coreless motor.

[0051] It can be understood that the inside of the coreless motor is hollow. It usually consists of an externally fixed stator and an internal rotor. The coreless motor has the characteristics of small volume, high speed, and large power density, which can further reduce the volume of the brush rod 110, make the structure of the brush head assembly more compact, and reduce power consumption.

[0052] Exemplarily, the types of coreless motors include, but are not limited to, internal rotor coreless motors, external rotor coreless motors, iron core coreless motors, coreless coreless motors, etc. In some embodiments, the vibrating member 130 is an eccentric brush motor. The structure of the eccentric brush motor is relatively simple and usually consists of a rotor, a fixed magnet, and a brush. It has a small volume and low manufacturing cost; due to the asymmetry of the eccentric wheel, a relatively high starting torque can be generated when the motor starts, which is suitable for applications that require quick start and stop. In some embodiments, the vibrating member 130 can also use a magnetic levitation motor. The suspension and rotation of the rotor are achieved through the interaction of magnetic forces without physical contact, reducing frictional losses, improving energy conversion efficiency, and eliminating the need for lubrication and routine maintenance, reducing maintenance costs and failure rates; and the non-contact working method results in lower noise and vibration levels, improving the user experience.

[0053] According to the brush head assembly of the embodiment of the present invention, the brush rod 110 further includes a second end 112 opposite to the first end 111. A first contact assembly 150 connected to the supercapacitor 120 is provided at the second end 112 of the brush rod 110. The first contact assembly 150 is adapted to be connected to an external power source to charge the supercapacitor 120.

[0054] It can be understood that in this embodiment, when the electric energy stored in the supercapacitor 120 is used up, the first contact assembly 150 can be connected to an external power source to charge the supercapacitor 120 by the external power source, enabling flexible control. Moreover, by adjusting the contact time and frequency of the contacts, the charging speed of the supercapacitor 120 can be controlled to meet different electric energy requirements and voltage requirements. Compared with the method of charging and discharging through resistors or circuit elements, the contact area of the contacts is small and the contact resistance is low, enabling faster charging and discharging speeds and providing a larger current output.

[0055] An embodiment of another aspect of the present invention, in combination with Figure 1 and Figure 2 as shown, provides an electric toothbrush, including a brush handle 210 and the above-mentioned brush head assembly, and the brush rod 110 is adapted to be detachably connected to the brush handle 210.

[0056] In this embodiment, the brush head assembly can be used in cooperation with the brush handle 210. The detachable design of the brush rod 110 and the brush handle 210 enables users to conveniently clean and replace the brush head assembly, facilitating carrying and storage. Users can also select different types of brush heads according to their personal oral health needs, such as soft brush heads, hard brush heads, etc., to meet personalized requirements.

[0057] According to the electric toothbrush of the second aspect embodiment of the present invention, as Figure 2 shown, the brush handle 210 forms a second accommodation cavity, and an operation board 220 is arranged in the second accommodation cavity. The operation board 220 is connected to the supercapacitor 120 to adjust the power supply parameters of the supercapacitor 120.

[0058] It can be understood that although the brush head assembly can be used alone, it does not have relatively complex adjustment functions. In this embodiment, the operation board 220 is arranged in the second accommodation cavity of the brush handle 210 and connected to the supercapacitor 120 of the brush head assembly, enabling the adjustment of the power supply parameters of the supercapacitor 120. That is, according to the user's needs and oral conditions, the charging and discharging parameters of the supercapacitor 120 can be adjusted to achieve a better use effect of the electric toothbrush. Users can adjust the power supply parameters of the electric toothbrush through the operation board 220, such as adjusting the vibration frequency, power output, etc., to obtain a customized experience that better meets personal oral needs; by adjusting the power supply parameters of the supercapacitor 120, higher energy utilization efficiency can also be achieved, thereby extending the battery life and improving the energy-saving performance of the electric toothbrush.

[0059] According to an embodiment of the present invention, as Figure 2 shown, an energy storage capacitor 230 is arranged on the operation board 220, and the supercapacitor 120 is adapted to be connected to the energy storage capacitor 230 through the operation board 220 to supply power to the energy storage capacitor 230.

[0060] It can be understood that, in some embodiments, the supercapacitor 120 directly powers the relevant electronic devices on the operation board 220 and the brush handle 210; in other embodiments, an energy storage capacitor 230 is provided on the operation board 220, and the supercapacitor 120 can power the energy storage capacitor 230 through the operation board 220 to achieve the charging of the energy storage capacitor 230, release and reuse the energy released by the supercapacitor 120, and realize the recovery and utilization of energy. During use, part of the energy can be stored in the energy storage capacitor 230 for subsequent use, improving the energy utilization efficiency. During use, the supercapacitor 120 and the energy storage capacitor 230 can also be configured such that the supercapacitor 120 vibrates the vibrating member 130 of the brush head assembly to drive the brush rod 110 to vibrate, and the energy storage capacitor 230 powers part of the brush handle 210 to supply power to other relevant electronic devices at the operation board 220 and the brush handle 210, realizing the distribution and utilization of energy, so that the electric toothbrush can more efficiently utilize energy during use. At the same time, through power transmission and energy conversion, flexible power supply to the brush head assembly and part of the brush handle 210 can be achieved, improving the overall performance and user experience of the electric toothbrush.

[0061] It should be noted that the energy storage capacitor 230 in this embodiment can be an ordinary capacitor or a supercapacitor, and its capacity and specifications can be designed according to the specific requirements of the electric toothbrush, and this embodiment does not make specific limitations on this.

[0062] According to an embodiment of the present invention, the capacitance of the supercapacitor 120 is greater than the capacitance of the energy storage capacitor 230.

[0063] It can be understood that the main energy consumption of the electric toothbrush lies in the vibration of the vibrating member 130. Therefore, in this embodiment, in combination with the characteristics of the supercapacitor 120 and the energy storage capacitor 230, the large capacity of the supercapacitor 120 is fully utilized to provide the vibration energy of the brush head assembly, and the energy storage capacitor 230 powers part of the brush handle 210 and other electronic devices. In this way, the distribution and utilization of energy can be realized to meet the energy requirements of different components. The large capacity of the supercapacitor 120 can better meet the energy supply to high-energy-consuming components (such as the vibrating member 130), while the energy storage capacitor 230 can provide stable energy for other low-power components (such as at the brush handle 210), improving the efficiency and service life of the electric toothbrush.

[0064] According to an embodiment of the present invention, as Figure 2 shown, when a first contact component 150 is provided at the second end 112 of the brush rod 110, the operation board 220 is provided with a second contact component 240, and when the brush rod 110 is installed on the brush handle 210, the first contact component 150 and the second contact component 240 are in contact.

[0065] In this embodiment, when the second end 112 of the brush rod 110 is installed on the brush handle 210, the first contact component 150 will abut against the second contact component 240 to realize the circuit connection of the supercapacitor 120, the operation board 220 and the energy storage capacitor 230. At this time, the supercapacitor 120 can charge the energy storage capacitor 230, and the user can also adjust the parameters of the supercapacitor 120 through the operation board 220.

[0066] In an alternative embodiment, a display component may be provided on the brush rod 110 or the brush handle 210 for displaying the remaining power of the supercapacitor 120. The form of the display component includes but is not limited to a display screen or a display lamp, etc. For example, when the remaining power of the supercapacitor 120 is lower than a certain value, the display lamp can flash to remind the user to charge the brush head component. This embodiment does not make specific limitations on this.

[0067] An embodiment of another aspect of the present invention provides a toothbrush set, including a charging stand 300 and the electric toothbrush in any of the above embodiments. Refer to Figure 3 As shown, the charging stand 300 is formed with a charging slot 310, and the second end 112 of the brush rod 110 is adapted to be inserted into the charging slot 310 to charge the brush head component.

[0068] It can be understood that in this embodiment, when the electric energy stored in the supercapacitor 120 is used up, the user can disassemble the brush handle 210 and the brush head component of the electric toothbrush, and then insert the brush rod 110 of the brush head component into the charging slot 310 of the charging stand 300, so as to realize the charging of the brush head component. This is both convenient and practical. The user can place the brush head component on the charging stand 300 for charging when not using the electric toothbrush, ensuring that the electric toothbrush is in a fully charged state when used next time.

[0069] In this embodiment, refer to Figure 3 As shown, the charging stand 300 is formed with a charging slot 310. The user can simply plug the brush head component into the charging stand 300, ensuring a stable connection during charging, while also facilitating the user's plugging and unplugging operations. And when not charging, the brush head component can also be neatly stored in the charging slot 310, which is convenient for the user to use and helps to save space, improving the convenience of user use.

[0070] In an alternative embodiment, the depth of the charging slot 310 may not be less than one-fourth of the preset standard length of the brush rod 110 of the brush head component to prevent the brush head component from tilting when stored in the charging slot 310. Optionally, the depth of the charging slot 310 can also be set according to the connection method between the brush head component and the charging stand 300. This embodiment does not make specific limitations on this.

[0071] According to an embodiment of the present invention, refer to Figure 3As shown, when a first contact component 150 is provided at the second end 112 of the brush rod 110, a third contact component 320 is provided at the bottom of the charging slot 310. One end of the third contact component 320 is adapted to be connected to an external power source. When the second end 112 is inserted into the charging slot 310, the first contact component 150 abuts against the other end of the third contact component 320.

[0072] In this embodiment, when the brush rod 110 is inserted into the charging slot 310, the first contact component 150 will abut against the third contact component 320 to realize the connection between the external power source and the brush head component, and transmit the current of the external power source to the brush head component to charge the supercapacitor 120. During the charging process, it is necessary to ensure the safety, reliability and stability of the first contact component 150 and the third contact component 320 to ensure normal current transmission and charging effect. At the same time, relevant electrical safety standards also need to be followed to ensure the safety of the charging process.

[0073] According to an embodiment of the present invention, a first magnet is provided at the second end 112, and a second magnet is provided at the bottom of the charging slot 310. When the second end 112 is inserted into the charging slot 310, the first magnet and the second magnet adsorb each other (not shown in the figure).

[0074] In this embodiment, when the brush rod 110 is inserted into the charging slot 310, the first magnet and the second magnet will adsorb each other, thereby realizing the fixation of the brush head component, ensuring that the brush head component always maintains a stable position during the charging process, and preventing it from accidentally falling off and toppling. Through the magnetic adsorption method, the brush head component can be firmly fixed on the charging base 300, allowing users to charge with confidence.

[0075] In some embodiments, the first magnet and the second magnet can be respectively embedded in the first contact component 150 and the third contact component 320. In this way, the fixation of the brush head component and the charging operation can be carried out simultaneously, providing a convenient charging experience for users. This embodiment is not specifically limited.

[0076] It can be understood that the charging method of the charging base 300 can be wired charging or wireless charging. In some embodiments, a wireless transmitting coil is provided in the charging base 300, and a wireless receiving coil is provided in the brush head component. The wireless transmitting coil and the wireless receiving coil are coupled to transmit the electric energy in the external power source to the brush head component. This charging method allows users to charge more conveniently without worrying about the limitation of the plug position, and at the same time reduces the wear of the contact components and the potential safety hazards caused by poor contact.

[0077] Further, an energy storage component can also be provided in the charging stand 300. Electrical energy is pre-stored in the energy storage component, and the charging process can be managed through a control circuit, which can be integrally provided on a circuit board. When the brush head assembly is placed on the charging stand 300, the control circuit will detect and initiate the charging process. The control circuit of the charging stand 300 can also monitor the charging status of the battery, adjust the charging current and voltage, so as to ensure safe and efficient charging of the brush head assembly. During the charging process, there is no need to connect to an external power supply, realizing true wireless charging and expanding the usage scenarios of the charging stand 300.

[0078] In some embodiments, the charging stand 300 is provided with a charging plug 330. One end of the charging plug 330 can be connected to an external power supply, and the other end can be connected to the energy storage component or the wireless transmitting coil. When the other end of the charging plug 330 is connected to the energy storage component, the energy storage component can be charged through the external power supply, which means that the user can charge the energy storage component through the external power supply after the electrical energy of the energy storage component is used up, thus realizing recycling. It is especially suitable for occasions where frequent movement is required or there is no constant power supply. The user can charge the energy storage component at any time according to needs to ensure the continuous use of the brush head assembly; when the other end of the charging plug 330 is connected to the wireless transmitting coil, the charging electrical energy is directly provided by the external power supply to the brush head assembly, improving the convenience and flexibility of charging.

[0079] It can be understood that if the brush head assembly and the electric toothbrush have the beneficial effects of the above embodiments, then the toothbrush set correspondingly has the beneficial effects of the above embodiments. The specific implementation manners can refer to the above embodiments, and will not be elaborated in this application.

[0080] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the protection scope of the present invention.

Claims

1. A brush head assembly, characterized in that, Comprising: A brush rod, within which a first accommodation cavity is formed; A supercapacitor and a vibrating member, installed in the first accommodation cavity, the supercapacitor is connected to the vibrating member, and the supercapacitor is adapted to drive the vibrating member to vibrate so as to drive the brush rod to vibrate; Brush bristles, arranged at the first end of the brush rod.

2. The brush head assembly according to claim 1, wherein The supercapacitor is an electric double layer capacitor.

3. The brush head assembly according to claim 1, wherein, The vibrating member is a coreless motor.

4. The brush head assembly according to any one of claims 1-3, characterized in that, A first contact assembly connected to the supercapacitor is arranged at the second end of the brush rod, and the first contact assembly is adapted to be connected to an external power supply to charge the supercapacitor.

5. An electric toothbrush, characterized in that, Comprising a brush handle and the brush head assembly according to any one of claims 1-4, and the brush rod is adapted to be detachably connected to the brush handle.

6. The electric toothbrush according to claim 5, characterized in that, The brush handle forms a second accommodation cavity, and an operation board is arranged in the second accommodation cavity. The operation board is connected to the supercapacitor to adjust the power supply parameters of the supercapacitor.

7. The electric toothbrush according to claim 6, characterized in that, An energy storage capacitor is arranged on the operation board, and the supercapacitor is adapted to be connected to the energy storage capacitor through the operation board to supply power to the energy storage capacitor.

8. The electric toothbrush according to claim 7, characterized in that, The capacitance of the supercapacitor is greater than the capacitance of the energy storage capacitor.

9. The electric toothbrush according to claim 6, wherein, When the first contact assembly is arranged at the second end of the brush rod, the operation board is provided with a second contact assembly. When the brush rod is installed on the brush handle, the first contact assembly and the second contact assembly are in contact.

10. A toothbrush set, characterized in that, Comprising: A charging base, which forms a charging slot; The electric toothbrush according to any one of claims 5-9, and the second end of the brush rod is adapted to be inserted into the charging slot to charge the brush head assembly.

11. The toothbrush set according to claim 10, characterized in that, When the first contact assembly is arranged at the second end, a third contact assembly is arranged at the bottom of the charging slot. The third contact assembly is adapted to be connected to an external power supply. When the second end of the brush rod is inserted into the charging slot, the first contact assembly and the third contact assembly are in contact.

12. The toothbrush set according to claim 10, wherein A first magnet is arranged at the second end, and a second magnet is arranged at the bottom of the charging slot. When the second end is inserted into the charging slot, the first magnet and the second magnet attract each other.

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