Conductive structure of sound wave motor and electric toothbrush

Abstract

The utility model provides a conductive structure of a sound wave motor and an electric toothbrush, and belongs to the field of electric toothbrushes, the conductive structure comprises a sound wave motor body, a hollow conductive motor shaft and a conductive assembly, the motor shaft of the sound wave motor is of a hollow conductive structure, and the interior of the motor shaft serves as a wiring channel; the conductive assembly penetrates through the body from the central axis of the crankshaft to be externally connected to form a first conductive circuit, and the motor shaft of the conductive assembly serves as a second conductive circuit through the conductivity of the conductive assembly. The two ends are respectively connected with an electric element and a power supply to form an access; the characteristics of the structure of the sound wave motor are fully utilized, and only the crankshaft needs to be arranged in a hollow manner without greatly modifying the structure of the motor; the first power connection output end and the second power connection output end are both integrated on the motor shaft, although the motor vibrates in a high-frequency reciprocating mode, the power connection efficiency is not affected, additional wiring layout is not needed, the two output ends can be installed in an external assembly mode, and the motor has the advantages in safety and convenience.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrushes, and in particular provides a conductive structure for a sonic motor and an electric toothbrush. Background Technology

[0002] With the development of intelligent society, more and more electrical appliances are entering people's lives, and with the improvement of living standards, more and more consumers are paying attention to oral health. Electric toothbrushes, for example, use sonic motors to generate power, driving the brush head to oscillate at high frequency through high-frequency reciprocating vibrations of a certain amplitude, thereby achieving teeth cleaning and greatly simplifying life. Currently, there are few electric toothbrushes on the market with light-emitting brush heads and other functions; most are conventional electric toothbrushes. A few blue or red light electric toothbrushes often require significant modifications to the motor output shaft to complete the power supply wiring, making the structure complex. Alternatively, the increase in parts or changes in motor type can significantly reduce motion transmission efficiency, thus reducing the amplitude and frequency of the brush head oscillation. For example, Chinese patent CN 215019476 U describes a sonic electric toothbrush structure with sterilization and blue light whitening, which uses a wireless charging coil for power supply, inevitably increasing the number of parts and resulting in an unsatisfactory brush head oscillation effect. Alternatively, to accommodate conductive devices, the volume of the brush head and motor output shaft may increase, reducing the user experience. Therefore, this utility model was developed to address these issues. Utility Model Content

[0003] In view of the above, this utility model aims to solve the problem that the power supply structure of the sonic motor in electric toothbrushes on the market is relatively complex, requiring significant changes to the motor output shaft, which affects the motion transmission efficiency.

[0004] On another note, this invention aims to solve the problem that the power supply structure of the sonic motor in some electric toothbrushes on the market has complex wiring and lacks assembly capabilities.

[0005] In another aspect, this utility model aims to solve the problem that some electric toothbrushes on the market require changes to the output shaft of the motor or the spatial structure of the brush head to accommodate conductive devices.

[0006] To address one of these issues, this utility model provides a conductive structure for an acoustic wave motor, characterized by comprising:

[0007] The body of the acoustic motor;

[0008] A hollow conductive motor shaft, one end of which is inserted into the interior of the acoustic motor body and is output by the acoustic motor body to perform high-frequency reciprocating vibration with a certain amplitude, the other end of which extends out of the acoustic motor body to form an output section, the output section having a first power output terminal, and the hollow conductive motor shaft also having a first power input terminal;

[0009] A conductive component, comprising at least a first conductive element, a second conductive element, and an insulating mounting base, wherein the first conductive element is mounted on the output section via the insulating mounting base to form a second power output terminal, and one end of the second conductive element is connected to the first conductive element, and the other end passes through the hollow conductive shaft and extends outward to form a second power input terminal.

[0010] Preferably, the hollow conductive shaft further includes a shaft conductor, one end of which is conductive to the first power output terminal, and the other end is implemented as the first power input terminal.

[0011] Preferably, a connection hole is formed on the side wall of the output section, and one end of the shaft wire is hiddenly connected to the hollow conductive shaft through the connection hole; the other end of the shaft wire extends inside the hollow conductive shaft or extends outside the hollow conductive shaft.

[0012] Preferably, it also includes a first conductive sheet having a through hole, the hollow conductive shaft passing through the through hole and contacting the first conductive sheet, and one end of the shaft wire being connected to the first conductive sheet.

[0013] Preferably, the first conductive sheet is further provided with a flexible contact portion within the perforation, and the first conductive sheet conducts electricity through the flexible contact portion in contact with the hollow conductive shaft.

[0014] The beneficial effects of the above technical solutions can come from one or a combination of the following:

[0015] This application implements the motor shaft of the acoustic motor as a hollow conductive structure, with its interior serving as a wiring channel. The conductive components pass through the shaft along the axis to form the first conductive line, while the motor shaft itself utilizes its conductivity to serve as the second conductive line. The two ends are respectively connected to the power supply and the electrical component to form a circuit. This fully utilizes the structural characteristics of the acoustic motor itself, requiring only a hollow shaft design without major structural modifications to the motor. Furthermore, both the first and second power output terminals are integrated into the motor shaft itself, so even though the motor vibrates at high frequency, it does not affect the power connection efficiency, eliminating the need for additional wiring layout.

[0016] Hollow conductive shafts can be fully internally wired, or a single wire can be led out externally using shaft wires. They are highly adaptable and widely applicable, and are particularly suitable for conductive structures where the power supply is on one side of the acoustic motor body and the electrical components are on the other side. They offer high integration, high space utilization, reduced wiring difficulty, and improved durability.

[0017] To address one aspect, this utility model also provides an electric toothbrush, characterized in that it includes at least the conductive structure of the aforementioned sonic motor; the brush head of the electric toothbrush is provided with an electrical component, the positive and negative terminals of the electrical component are connected to the first power output terminal and the second power output terminal, and the control board or battery of the electric toothbrush is connected to the first power input terminal and the second power input terminal.

[0018] Preferably, it also includes a mounting bracket, which is sleeved on the hollow conductive motor shaft and is at least circumferentially fixed relative to the hollow conductive motor shaft. The mounting bracket has a first assembly port at the first power output end for assembling and connecting the electrical component, and the mounting bracket has a second assembly port at the second power output end for assembling and connecting the electrical component.

[0019] Preferably, the device also includes a power connection assembly, which includes a first power connection component and a second power connection component. The first power connection component is detachably mounted to the first mounting port and contacts the first power output terminal. The second power connection component is detachably mounted to the second mounting port and contacts the second power output terminal. The first power connection component and the second power connection component are connected to the positive and negative terminals of the power-consuming element via wires to supply power.

[0020] Preferably, the first contact element is a conductive spring, the bottom of which has an elastic deformation portion. The mounting bracket has a guide groove along the insertion direction, and the first assembly port is located in the guide groove. The conductive spring compresses the elastic deformation portion and inserts it into the first assembly port along the guide groove. The elastic deformation portion extends into the first assembly port and contacts the first contact output terminal for conductivity.

[0021] Preferably, the second contacting element is a conductive probe, which is inserted into the second assembly port and makes contact with the first conductive element to conduct electricity.

[0022] The beneficial effects of the above technical solutions can come from one or a combination of the following:

[0023] This application implements the motor shaft of the acoustic motor as a hollow conductive structure, with its interior serving as a wiring channel. Conductive components are connected externally from the shaft along the axis to form the first conductive line, while the motor shaft itself utilizes its conductivity to serve as the second conductive line. The two ends are respectively connected to the power supply and the electrical component to form a circuit. This fully utilizes the structural characteristics of the acoustic motor itself, requiring only a hollow shaft design without major structural modifications to the motor. Moreover, both the first and second power output ends are integrated into the motor shaft itself. Although the motor vibrates at high frequency, it does not affect the power connection efficiency, eliminating the need for additional wiring layout. Furthermore, the two output ends are stably contacted internally via mounting brackets and can be assembled externally, offering unparalleled advantages in terms of safety and convenience.

[0024] While enabling external output linkage by mounting brackets, the structure of the mounting brackets also allows electrical components to be assembled with the mounting ports on the brackets, thereby achieving power connection to both output terminals.

[0025] Hollow conductive shafts can be fully internally wired, or a single wire can be led out externally using shaft wires. They are highly adaptable and widely applicable, and are particularly suitable for conductive structures where the power supply is on one side of the acoustic motor body and the electrical components are on the other side. They offer high integration, high space utilization, reduced wiring difficulty, and improved durability.

[0026] The two power output terminals are assembled and connected separately by the power connection components, which is very convenient to assemble. The circuits are clear, the power supply structure is integrated into the acoustic motor, and the power component is integrated into the power component structure. The two only need to be assembled and installed to make contact. The mounting bracket itself acts as a linkage component, which not only does not take up space but also further stabilizes the contact structure between the two, which greatly improves the reliability compared to the pure wire connection on the market.

[0027] In an electric toothbrush, the brush head handle is inserted into a mounting bracket, thereby electromagnetically driving a hollow conductive motor shaft. This hollow conductive motor shaft, via the mounting bracket, drives the brush head handle to reciprocate at a high frequency, ultimately causing the brush head to oscillate at high frequency. Two electrical contact components are implemented as a conductive probe and a conductive spring. The conductive probe is inserted into the first electrode, and the conductive spring is assembled with the mounting bracket via a guide groove. The stable electrical contact achieved by the mounting bracket's structure ensures high assemblability and stability. Attached Figure Description

[0028] Figure 1 This is a schematic diagram illustrating the conductive structure of the acoustic wave motor in this invention.

[0029] Figure 2 This diagram shows the disassembled structure of the conductive structure of the acoustic motor in this invention.

[0030] Figure 3 This diagram illustrates the structure of the first conductive sheet in this invention.

[0031] Figure 4 This is a front view showing the conductive structure of the acoustic wave motor in this utility model.

[0032] Figure 5 It expresses Figure 4 Sectional view at point AA.

[0033] Figure 6 This diagram illustrates the conductive structure of the acoustic motor and the structure of the brush head in this invention.

[0034] Figure 7 It expresses Figure 6 Disassembly diagram of the mounting bracket and hollow conductive motor shaft.

[0035] Figure 8 This diagram illustrates the structure of the electrical connection component in this invention.

[0036] Figure 9 This is a front view of the brush head handle in this utility model.

[0037] Figure 10 It expresses Figure 9 Sectional view at point BB.

[0038] Figure 11 This is a front view of the electric toothbrush of this utility model.

[0039] Figure 12 It expresses Figure 11 Sectional view at point CC.

[0040] Figure 13 It expresses Figure 12 Enlarged view of point D in the middle.

[0041] in: Detailed Implementation

[0042] The preferred embodiments described below are merely examples, and other obvious variations will be apparent to those skilled in the art. The basic principles of this invention as defined in the following description can be applied to other implementations, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this invention.

[0043] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than exclusive or exhaustive; that is, meaning "including but not limited to." The terms "and / or" used in the text are for simplification; for example, "A and / or B" includes both "A and B" and "A or B," where "A or B" is interpreted as choosing one of "A" or "B," and "A and B" is interpreted as choosing both "A" and "B."

[0044] The sonic motor in an electric toothbrush works by alternating forward and reverse energization at a certain frequency. The motor's output shaft then oscillates back and forth at that frequency, creating the "brushing" motion. This vibration principle relies on the attraction and repulsion between the stator and rotor within the motor. Since there is no mechanical friction inside the motor, it offers high stability, high output power, and the ability to generate high-frequency vibrations, achieving a sound wave-like effect. Therefore, it is widely accepted and used by those skilled in the art. The above is a necessary prerequisite for understanding this application. Example

[0045] Please participate Figures 1-5 and combined Figure 6 and Figure 7 ,in, Figure 1 , Figure 3 , Figure 4 and Figure 5 To illustrate the conductive path, and without showing the mounting bracket, in Figure 2 , Figure 6 and Figure 7 The complete diagram is shown below. This utility model primarily provides a conductive structure for a sound wave motor, including a sound wave motor body 1, a hollow conductive shaft 2, and conductive components. Please refer to the following for more details. Figure 2One end of the hollow conductive motor shaft 2 is inserted into the interior of the acoustic motor body 1 and is subjected to high-frequency reciprocating vibration of a certain amplitude by the acoustic motor body 1. One section of the hollow conductive motor shaft 2 extends outside the acoustic motor body 1 to form an output section 20, which has a first power output terminal 201. The hollow conductive motor shaft 2 also has a first power input terminal 221. The conductive component includes at least a first conductive element 31, a second conductive element 33, and an insulating mounting base 32. The first conductive element 31 is mounted on the output section 20 through the insulating mounting base 32 to form the second power output terminal. One end of the second conductive element 33 is connected to the first conductive element 31, and the other end passes through the hollow conductive motor shaft 2 and extends outward to form the second power input terminal 331. In this embodiment, the motor shaft of the acoustic motor is implemented as a hollow conductive structure, with its interior serving as a wiring channel. The conductive component passes through the central axis of the shaft and externally to form the first conductive line, while the motor shaft itself utilizes its conductivity to serve as the second conductive line. The two ends of the two lines are respectively connected to the power supply and the electrical component to form a circuit. This fully utilizes the structural characteristics of the acoustic motor itself, requiring only a hollow shaft design without major structural modifications to the motor. Furthermore, both the first and second power output terminals are integrated into the motor shaft itself. Although the motor vibrates at high frequency, it does not affect the power connection efficiency, eliminating the need for additional wiring layout. Moreover, the two output terminals can be externally assembled, offering unparalleled advantages in terms of safety and convenience.

[0046] The above is the basis for implementing this embodiment. The following is a further detailed description in conjunction with the accompanying drawings:

[0047] In this embodiment, the acoustic motor body 1 is implemented as an acoustic motor structure excluding the motor shaft, which includes a housing, stator, rotor and bearing components in the openings at both ends of the housing, etc. This is the principle structure of the acoustic motor. This embodiment does not make technical improvements to the principle structure, so it will not be described in detail.

[0048] As a preferred embodiment of this example, please refer to Figure 1 and Figure 2 The hollow conductive shaft 2 also includes a shaft conductor 22. One end of the shaft conductor 22 is connected to the hollow conductive shaft 2 and conducts electricity to the first power output terminal 201, and the other end is implemented as the first power input terminal 221. In implementation, the other end of the shaft conductor 22 is connected to the control board 8 of the power supply element or the battery 9 (see...). Figure 12 The electrical components are powered through connection to the first power output terminal 201. Preferably, the shaft conductor 22 is wrapped with insulating plastic to prevent leakage. During the wiring process, the maximum amplitude of one reciprocating swing of the hollow conductive shaft 2 should be considered, and sufficient space should be reserved to prevent it from being pulled apart.

[0049] Furthermore, the shaft wire 22 can be wired either inside or outside the hollow conductive shaft 2. For external wiring, please refer to [reference needed]. Figure 1 and combined Figure 4 and Figure 5 A connection hole 21 is formed on the side wall of the output section 20 of the hollow conductive shaft 2. One end of the shaft wire 22 is hidden and connected to the hollow conductive shaft 2 through the connection hole 21, and the other end extends out of the hollow conductive shaft 2 to the power supply element.

[0050] Alternatively, during internal wiring, a connection hole 21 is formed on the side wall of the output section 20 of the hollow conductive shaft 2. One end of the shaft wire 22 is hiddenly connected to the hollow conductive shaft 2 through the connection hole 21, and the other end extends and runs inside the hollow conductive shaft 2.

[0051] For further details, please refer to Figure 3 This embodiment also includes a first conductive sheet 23, which is assembled on the acoustic motor body 1 and contacts the hollow conductive shaft 2. One end of the shaft wire 22 is connected to the first conductive sheet 23 to facilitate electrical conduction between the shaft wire 22 and the hollow conductive shaft 2. Preferably, the first conductive sheet 23 has a through hole in the middle, and a flexible contact portion 231 is provided in the through hole. The hollow conductive shaft 2 passes through the through hole, and the flexible contact portion 231 presses against the hollow conductive shaft 2 for contact and conductivity. The first conductive sheet 23 can be installed on the acoustic motor body 1. Preferably, there are two flexible contact portions 231, located on both sides of the hollow conductive shaft 2, contacting the hollow conductive shaft 2. They can be implemented as metal wires or stranded metal wires, etc.

[0052] It should be noted that in this embodiment, the hollow conductive shaft 2 serves as a conductive bridge for the conductive connection between the power-consuming component and the power-supplying component. The connection method between the power-consuming component and the power-supplying component and the hollow conductive shaft 2 is not limited to any particular form. The above description includes contact methods such as the first conductive sheet 23 and the shaft wire 22 connection, but other methods can also be used, and should not be considered limiting. The first power input terminal 221 and the second power input terminal 331 can be directly connected to the power supply component via positive and negative wires, or they can be connected via electrode plates, metal springs, etc., depending on the specific implementation.

[0053] Furthermore, the first conductive element 31 is the first electrode, and the second conductive element 33 is the second wire; the first electrode is installed at the end of the output section 20 through the insulating mounting base 32, the second wire passes through the hollow conductive shaft 2 and is connected to the first electrode, the second power input terminal 331 is defined as the end of the second wire away from the first electrode, and the second power output terminal is defined as the first electrode.

[0054] Please see Figure 1 and Figure 2 The conductive path in this embodiment is as follows:

[0055] First, the power supply element is connected to the positive and negative terminals through the first power input terminal 221 and the second power input terminal 331. Then, the first power input terminal 221 is connected to the connection hole 21 on the output section 20 through the shaft wire 22. At the same time, the first power output terminal 201 on the shaft output section 20 conducts electricity to form a first circuit. The second power input terminal 331 is connected to the first conductive element 31 (implemented as the first electrode, and also defined as the second power output terminal) through the second conductive element 33 (implemented as the second wire) to form a second circuit. The insulating properties of the insulating mounting base 32 and the second wire prevent a short circuit between the two circuits. Finally, the positive and negative terminals of the power supply element are connected to the first power output terminal 201 and the first electrode (i.e., the second power output terminal).

[0056] The beneficial effects of the above technical solutions can come from one or a combination of the following:

[0057] This application implements the motor shaft of the acoustic motor as a hollow conductive structure, with its interior serving as a wiring channel. The conductive component passes through the shaft along the axis to form the first conductive line, while the motor shaft itself utilizes its conductivity to serve as the second conductive line. The two ends are respectively connected to the power supply and the electrical component to form a circuit. This fully utilizes the structural characteristics of the acoustic motor itself, requiring only the hollow shaft design without major structural modifications to the motor. Furthermore, both the first and second power output terminals are integrated into the motor shaft itself, so even though the motor vibrates at high frequency, it does not affect the power connection efficiency, eliminating the need for additional wiring layout.

[0058] The hollow conductive shaft 2 can be fully internally wired, or a single line can be led out externally using the shaft wire 22. It has strong adaptability and wide application. It is especially suitable for conductive structures where the power supply is on one side of the acoustic motor body 1 and the electrical components are on the other side. It has strong integration, high space utilization, reduces wiring difficulty, and improves durability. Example

[0059] Please see Figures 11-13 and combined Figures 1-10 This embodiment provides an electric toothbrush, which includes at least a conductive structure for a sonic motor. Figure 2 The first power input terminal 221 and the second power input terminal 331 are connected to Figure 12 The control board 8 or battery 9 of the electric toothbrush.

[0060] It should be noted that the electric toothbrush includes a main body, a brush head 5, a brush head handle 6, etc., and its principle is common knowledge in the field, so it will not be described in detail. In this embodiment, the electric toothbrush includes a main body and a power supply structure for the brush head.

[0061] For details, please refer to the following: Figure 2The conductive structure of the acoustic motor includes an acoustic motor body 1, a hollow conductive shaft 2, and conductive components. One end of the hollow conductive shaft 2 passes through the interior of the acoustic motor body 1 and is subjected to high-frequency reciprocating vibration of a certain amplitude by the acoustic motor body 1. A section of the hollow conductive shaft 2 extends outside the acoustic motor body 1 to form an output section 20, which has a first power output terminal 201. The hollow conductive shaft 2 also has a first power input terminal 221. The conductive components include at least a first conductive element 31, a second conductive element 33, and an insulating mounting base 32. The first conductive element 31 is mounted on the output section 20 via the insulating mounting base 32 to form the second power output terminal. One end of the second conductive element 33 is connected to the first conductive element 31, and the other end passes through the hollow conductive shaft 2 and extends outward to form the second power input terminal 331.

[0062] like Figure 2 , Figure 6 and Figure 7 As shown, this embodiment also includes a mounting bracket 4, which is sleeved on the hollow conductive motor shaft 2 and is at least circumferentially fixed relative to the hollow conductive motor shaft 2. The mounting bracket 4 has a first assembly port 41 for assembling and connecting power supply components at the first power output end 201, and a second assembly port 42 for assembling and connecting power supply components at the second power output end.

[0063] In this embodiment, the acoustic motor body 1 is implemented as an acoustic motor structure excluding the motor shaft, which includes a housing, stator, rotor and bearing components in the openings at both ends of the housing, etc. This is the principle structure of the acoustic motor. This embodiment does not make technical improvements to the principle structure, so it will not be described in detail.

[0064] Furthermore, the first conductive element 31 is the first electrode, and the second conductive element 33 is the second wire; the first electrode is installed at the end of the output section 20 through the insulating mounting base 32, the second wire passes through the hollow conductive shaft 2 and is connected to the first electrode, the second power input terminal 331 is defined as the end of the second wire away from the first electrode, and the second power output terminal is defined as the first electrode.

[0065] As a preferred embodiment of this example, please refer to Figure 1 and Figure 2 The hollow conductive shaft 2 also includes a shaft conductor 22. One end of the shaft conductor 22 is connected to the hollow conductive shaft 2 and conducts electricity to the first power output terminal 201, and the other end is implemented as the first power input terminal 221. In implementation, the other end of the shaft conductor 22 is connected to the control board 8 of the power supply element or the battery 9. Figure 12As shown, the electrical components are powered through connection to the first power output terminal 201. Preferably, the shaft conductor 22 is wrapped with insulating plastic to prevent leakage. During the wiring process, the maximum amplitude of one reciprocating swing of the hollow conductive shaft 2 should be considered, and sufficient space should be reserved to prevent it from being pulled apart.

[0066] Furthermore, the shaft wire 22 can be wired either inside or outside the hollow conductive shaft 2. For external wiring, please refer to [reference needed]. Figure 1 and combined Figure 4 and Figure 5 A connection hole 21 is formed on the side wall of the output section 20 of the hollow conductive shaft 2. One end of the shaft wire 22 is hidden and connected to the hollow conductive shaft 2 through the connection hole 21, and the other end extends out of the hollow conductive shaft 2 to the power supply element.

[0067] Alternatively, during internal wiring, a connection hole 21 is formed on the side wall of the output section 20 of the hollow conductive shaft 2. One end of the shaft wire 22 is hiddenly connected to the hollow conductive shaft 2 through the connection hole 21 to achieve power connection to the first power output terminal 201, and the other end extends and runs inside the hollow conductive shaft 2.

[0068] For further details, please refer to Figure 3 This embodiment also includes a first conductive sheet 23, which is assembled on the acoustic motor body 1 and contacts the hollow conductive shaft 2. One end of the shaft wire 22 is connected to the first conductive sheet 23 to facilitate electrical conduction between the shaft wire 22 and the hollow conductive shaft 2. Preferably, the first conductive sheet 23 has a through hole in the middle, and a flexible contact portion 231 is provided in the through hole. The hollow conductive shaft 2 passes through the through hole, and the flexible contact portion 231 presses against the hollow conductive shaft 2 for contact and conductivity. The first conductive sheet 23 can be installed on the acoustic motor body 1. Preferably, there are two flexible contact portions 231, located on both sides of the hollow conductive shaft 2, contacting the hollow conductive shaft 2. They can be implemented as metal wires or stranded metal wires, etc.

[0069] Please combine Figures 9-13 In this embodiment, the brush head 5 is mounted on the brush head handle 6 and indirectly drives the sonic motor through the brush head handle 6. The brush head handle 6 has an insertion cavity 60, and a power connection assembly is provided in the insertion cavity 60. The power connection assembly includes a first power connection component 71 and a second power connection component 72, which are respectively connected to the positive and negative terminals of the power-consuming component via wires. The mounting bracket 4 is inserted into the insertion cavity 60 of the brush head handle 6. The first power connection component 71 is detachably mounted to the first mounting port 41 and contacts the first power output terminal 201, and the second power connection component 72 is detachably mounted to the second mounting port 42 and contacts the second power output terminal.

[0070] As a preferred embodiment of this example, please refer to... Figure 8 The first conductive element 31 is the first electrode mentioned above, and the first electrical contact element 71 is implemented as a conductive spring. The bottom of the conductive spring has an elastic deformation part 711. The mounting bracket 4 is provided with a guide groove 40 along the insertion direction. The first assembly port 41 is located in the guide groove 40. The conductive spring compresses the elastic deformation part 711 and inserts it into the first assembly port 41 along the guide groove 40. The elastic deformation part 711 extends into the first assembly port 41 and contacts the first electrical output terminal 201 for conduction.

[0071] Furthermore, the second contact element 72 is a conductive probe, which is inserted into the second mounting port 42 and makes contact with the first electrode for conduction. The electrical component only needs to be connected to the conductive probe and the conductive spring through a wire for conduction. Preferably, the conductive spring is implemented as a deformable spring, and the deformable part corresponds to the elastic deformation part 711.

[0072] In this embodiment, the power supply component can be implemented as a control motherboard 8 and a battery 9, and the power consumption component can be implemented as a lighting effect component 51, a sensor, or a camera component, etc., installed in the brush head 5 of the electric toothbrush.

[0073] Please see Figure 10 In this embodiment, the power supply component is a lighting effect functional component 51. The lighting effect functional component 51 includes a lamp board 511 and lamp beads 512. The lamp board 511 is installed inside the brush head 5 and is electrically connected to the first power output terminal 201 and the second power output terminal. The lamp beads 512 are installed on the lamp board 511. Further, the lamp beads 512 are implemented as one or a combination of the following lamp beads: red light therapy lamp beads, blue light whitening lamp beads, or ultraviolet light sterilization lamp beads.

[0074] To facilitate better application of the therapeutic light from LED 512 to the oral cavity, at least a portion of the bristles of the electric toothbrush are configured as light-guiding bristles. Preferably, the position of these light-guiding bristles corresponds to the position of LED 512, facilitating the routing of light from LED 512 along the light-guiding bristles. Specifically, these light-guiding bristles are either transparent or have a light-guiding agent added during the manufacturing process.

[0075] Please see Figure 2 and combined Figure 7 , Figure 8 and Figure 12 , Figure 13 The conductive path in this embodiment is as follows:

[0076] First, the positive and negative terminals of the battery 9 are connected through the first power input terminal 221, the second power input terminal 331, and the control motherboard 8. Then, the first power input terminal 221 is connected to the connection hole 21 on the output section 20 through the spindle wire 22, and simultaneously conducts electricity with the first power output terminal 201 on the spindle output section 20 to form a first circuit. The second power input terminal 331 is connected to the first conductive element 31 (implemented as the first electrode, and also defined as the second power output terminal) through the second conductive element 33 (implemented as the second wire) to form a second circuit. The insulating properties of the insulating mounting base 32 and the second wire prevent a short circuit between the two circuits. Finally, the mounting bracket 4 is installed. The brush head 5 is attached to the output section 20. The first mounting port 41 corresponds to the first power output terminal 201, and the second mounting port 42 corresponds to the first electrode (i.e., the second power output terminal). The brush head 5 is inserted into the mounting bracket 4 through the brush head handle 6. The lighting effect component 51 in the insertion cavity 60 inside the brush head handle 6 is connected to a conductive spring and a conductive probe through a wire. As the brush head handle 6 is installed, the conductive spring is inserted into the first mounting port 41 of the mounting bracket 4 along the guide groove 40, and then the elastic deformation part 711 springs open to contact the first power output terminal 201. The conductive probe is inserted into the second mounting port 42 and contacts the first electrode to form a circuit.

[0077] The beneficial effects of this embodiment are:

[0078] This application implements the motor shaft of the acoustic motor as a hollow conductive structure, with its interior serving as a wiring channel. The conductive components pass through the shaft along the axis to form the first conductive line, while the motor shaft itself utilizes its conductivity to serve as the second conductive line. The two ends are respectively connected to the power supply and the electrical component to form a circuit. This fully utilizes the structural characteristics of the acoustic motor itself, requiring only a hollow shaft without major structural modifications to the motor. Moreover, both the first and second power output terminals are integrated into the motor shaft itself. Although the motor vibrates at high frequency, it does not affect the power connection efficiency, eliminating the need for additional wiring layout. Furthermore, the two output terminals are stably contacted internally through the mounting bracket 4, allowing for external assembly installation, which offers unparalleled advantages in terms of safety and convenience.

[0079] While enabling external output linkage through mounting bracket 4, the structure of mounting bracket 4 also allows electrical components to be assembled with the mounting ports on mounting bracket 4 when they are installed, thereby enabling power connection to both output terminals.

[0080] The hollow conductive shaft 2 can be fully internally wired, or a single line can be led out externally using the shaft wire 22. It has strong adaptability and wide application. It is especially suitable for conductive structures where the power supply is on one side of the acoustic motor body 1 and the electrical components are on the other side. It has strong integration, high space utilization, reduces wiring difficulty, and improves durability.

[0081] The two power output terminals are assembled and connected separately by the power connection components, which is very convenient to assemble. The circuits are clear, the power supply structure is integrated into the acoustic motor, and the power component is integrated into the power component structure. The two only need to be assembled and installed to make contact. The mounting bracket 4 does not take up space and further stabilizes the contact structure of the two, which greatly improves the reliability compared with the pure wire connection on the market.

[0082] In the electric toothbrush, the brush head handle 6 is inserted into the mounting bracket 4, thereby electromagnetically driving the hollow conductive motor shaft 2 via the sonic motor body 1. The hollow conductive motor shaft 2 then drives the brush head handle 6 to reciprocate at a high frequency via the mounting bracket 4, ultimately causing the brush head 5 to oscillate at a high frequency. The two electrical contact components are implemented as a conductive probe and a conductive spring. The conductive probe is inserted into the second assembly port 42 and contacts the first electrode. The conductive spring is assembled with the mounting bracket 4 via the guide groove 40. The stable electrical contact is achieved by relying on the structure of the mounting bracket 4, resulting in high assemblability and good stability.

[0083] The electrical component is implemented as a lighting effect component 51, which can be connected to the power supply through the control motherboard 8. When the electric toothbrush is started, the lighting effect component 51 can be controlled by the control motherboard 8 to operate, and can be applied according to the user's usage needs.

[0084] The lighting effect component 51 can be implemented as a variety of therapeutic effects, such as red light therapy, blue light whitening or purple light sterilization, etc., which, combined with the brush head 5, can achieve a comprehensive gum care and teeth cleaning effect.

[0085] Electrical components can also be implemented as sensors or photographic elements, which can be used to intuitively understand the oral environment and conditions, and even intuitively understand conditions such as gingivitis and tooth decay.

[0086] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

[0087] Those skilled in the art should understand that the embodiments of the present invention described above are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functions and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the described principles, the implementation of the present invention may have any modifications or variations.

Claims

1. The conductive structure of an acoustic wave motor, characterized in that, include: The body of the acoustic motor; A hollow conductive motor shaft, one end of which is inserted into the interior of the acoustic motor body and is output by the acoustic motor body to perform high-frequency reciprocating vibration with a certain amplitude, the other end of which extends out of the acoustic motor body to form an output section, the output section having a first power output terminal, and the hollow conductive motor shaft also having a first power input terminal; A conductive component, comprising at least a first conductive element, a second conductive element, and an insulating mounting base, wherein the first conductive element is mounted on the output section via the insulating mounting base to form a second power output terminal, and one end of the second conductive element is connected to the first conductive element, and the other end passes through the hollow conductive shaft and extends outward to form a second power input terminal.

2. The conductive structure of the acoustic wave motor according to claim 1, characterized in that, The hollow conductive shaft also includes a shaft wire, one end of which is conductive to the first power output terminal, and the other end is implemented as the first power input terminal.

3. The conductive structure of the acoustic motor according to claim 2, characterized in that, A connection hole is formed on the side wall of the output section. One end of the shaft wire is hiddenly connected to the hollow conductive shaft through the connection hole. The other end of the shaft wire extends inside the hollow conductive shaft or extends outside the hollow conductive shaft.

4. The conductive structure of the acoustic motor according to claim 2, characterized in that, It also includes a first conductive sheet having a through hole, through which the hollow conductive shaft passes and contacts the first conductive sheet, and one end of the shaft wire is connected to the first conductive sheet.

5. The conductive structure of the acoustic motor according to claim 4, characterized in that, The first conductive sheet is located inside the perforation and is also provided with a flexible contact portion. The first conductive sheet conducts electricity by contacting the hollow conductive shaft through the flexible contact portion.

6. An electric toothbrush, characterized in that, The electric toothbrush includes at least the conductive structure of the sonic motor as described in any one of claims 1-5; the brush head of the electric toothbrush is provided with an electrical component, the positive and negative terminals of the electrical component are connected to the first power output terminal and the second power output terminal, and the control board or battery of the electric toothbrush is connected to the first power input terminal and the second power input terminal.

7. The electric toothbrush according to claim 6, characterized in that, It also includes a mounting bracket, which is sleeved on the hollow conductive motor shaft and is at least circumferentially fixed relative to the hollow conductive motor shaft. The mounting bracket has a first assembly port at the first power output end for assembling and connecting the electrical component, and a second assembly port at the second power output end for assembling and connecting the electrical component.

8. The electric toothbrush according to claim 7, characterized in that, It also includes a power connection assembly, which includes a first power connection component and a second power connection component. The first power connection component is detachably mounted on the first mounting port and contacts the first power output terminal. The second power connection component is detachably mounted on the second mounting port and contacts the second power output terminal. The first power connection component and the second power connection component are connected to the positive and negative terminals of the power-consuming element through wires to supply power.

9. The electric toothbrush according to claim 8, characterized in that, The first electrical contact is a conductive spring with an elastic deformation part at the bottom. The mounting bracket has a guide groove along the insertion direction. The first assembly port is located in the guide groove. The conductive spring compresses the elastic deformation part and inserts it into the first assembly port along the guide groove. The elastic deformation part extends into the first assembly port and contacts the first electrical output terminal for conductivity.

10. The electrically powered toothbrush of claim 8 wherein, The second electrically-conductive member is an electrically-conductive probe which is inserted into the second assembly opening and makes contact with the first electrically-conductive member.

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