Electric toothbrush

Abstract

An electric toothbrush is provided. The electric toothbrush comprises a toothbrush handle and a toothbrush head. A tenon is arranged at one end of the toothbrush handle in a protruding mode and comprises a first supporting section (9) and a second supporting section (10), the second supporting section (10) surrounds the base end of the first supporting section (9), the first supporting section (9) can move relative to the second supporting section (10), and a motor (5) used for driving the first supporting section (9) to move is arranged in the toothbrush handle. The toothbrush head comprises a vibrating toothbrush head (7) and a rotary toothbrush head (8), the first supporting section (9) can be assembled with the vibrating toothbrush head (7), so that the motor (5) can drive the vibrating toothbrush head (7) to vibrate through the first supporting section (9), and the first supporting section (9) and the second supporting section (10) can be assembled with the rotary toothbrush head (8); therefore, the motor (5) can drive bristles of the rotary toothbrush head (8) to rotate through the first supporting section (9).

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric toothbrushes, and in particular to an electric toothbrush. BACKGROUND

[0002] Different electric toothbrushes have different functional principles. Vibration type electric toothbrushes and rotation type electric toothbrushes are two major types of electric toothbrushes with different functional principles. The vibration type electric toothbrush mainly relies on high-frequency vibration to drive the toothbrush head to swing at high speed, and the rotation type electric toothbrush mainly relies on a motor to drive the circular brush head to rotate. The movement forms output by the motors corresponding to the two major types of electric toothbrushes are different.

[0003] CN116348062A discloses a personal care system and method. The personal care appliance therein includes a motor having a drive shaft. In response to a voltage signal, the drive shaft oscillates with an oscillating motion having an oscillation amplitude. A control circuit includes a user interface, a processor, a pulse width modulation signal generator, and a power source operable in cooperation. The control circuit supplies the voltage signal to the motor, the voltage signal having a frequency and a duty cycle. The control circuit changes the frequency and the duty cycle of the voltage signal in response to an oscillation adjustment input received from the user interface, so that the oscillation amplitude of the drive shaft changes along a substantially linear rate curve with respect to the frequency. The purpose of CN116348062A is to provide an electric toothbrush with an oscillating motion that can be smoothly and continuously adjusted from one intensity to another without steps or jumps in the oscillation. CN116348062A does not integrate the vibration type electric toothbrush and the rotation type electric toothbrush together.

[0004] CN208319355U discloses a vibration mode alternating switching electric toothbrush. The vibration mode alternating switching electric toothbrush includes a brush handle and a toothbrush head, the brush handle is internally provided with a controller and a motor, the toothbrush head is connected with the motor, and the motor drives the toothbrush head to rotate and vibrate or linearly vibrate in different time periods under the control of the controller. The toothbrush head can linearly vibrate or rotate and vibrate under the driving of the motor, and the toothbrush head can be switched from linear vibration to rotary vibration or from rotary vibration to linear vibration under the action of the controller.

[0005] The motor used by CN208319355U is a driving motor capable of outputting rotary vibration or linear vibration respectively, and the motor can drive the toothbrush head to rotate and vibrate or linearly vibrate in different time periods under the control of the controller. The motor and the toothbrush head are connected through a mode switching mechanism, the mode switching mechanism is electrically connected with the controller, and the mode switching mechanism is used to switch the toothbrush head between linear vibration and rotary vibration under the control of the controller. Generally, the vibration type toothbrush head and the rotation type toothbrush head are different in structure, and CN208319355U does not disclose or suggest the switching of the toothbrush head.

[0006] CN210044170U discloses an electric toothbrush, which comprises a body, a brush head, a brush rod, a brush handle connected with the other end of the brush rod and internally provided with a first accommodating space, wherein the brush handle comprises a support, a motor fixed on the support through a connecting piece, and the motor comprises a first oscillator and a second oscillator, a control circuit board connected with the motor, the control circuit board comprises a first circuit and a second circuit, wherein the first circuit controls the first oscillator and the second circuit controls the second oscillator, and a vibration transmission shaft for driving the brush head to vibrate. It has two vibration modes, the first vibration mode is axial reciprocating mode, and the second vibration mode is axial rotation mode. The motor used is a double-core motor.

[0007] Similar to CN208319355U, CN210044170U does not disclose or suggest switching of the toothbrush head. Utility model content

[0008] The present application is made in view of the above-mentioned state of the art. The purpose of the present application is to provide an electric toothbrush.

[0009] The electric toothbrush according to one embodiment of the present application comprises:

[0010] A toothbrush handle, one end of the toothbrush handle is provided with a tenon, the tenon comprises a first support section and a second support section, the second support section surrounds the base end of the first support section, the first support section is movable relative to the second support section, and the toothbrush handle is internally provided with a motor for driving the first support section to move;

[0011] A toothbrush head, which comprises a vibrating toothbrush head and a rotating toothbrush head, the first support section is capable of being assembled with the vibrating toothbrush head, so that the motor is capable of driving the vibrating toothbrush head to vibrate via the first support section, and the first support section and the second support section are capable of being assembled with the rotating toothbrush head, so that the motor is capable of driving the bristles of the rotating toothbrush head to rotate via the first support section.

[0012] In at least one embodiment, the first support section is capable of being shrink-fitted and / or clamped with the vibrating toothbrush head and the rotating toothbrush head; and / or

[0013] The second support section is capable of being clearance-fitted with the vibrating toothbrush head, and the second support section is capable of being shrink-fitted and / or clamped with the rotating toothbrush head.

[0014] In at least one embodiment, the rotating brush head comprises a brush rod shell and a round brush head, the inside of the brush rod shell comprises a connecting rod, and the connecting rod and the round brush head constitute a crank rocker mechanism.

[0015] In at least one embodiment, the first support section is closer to the top end of the toothbrush handle than the second support section.

[0016] The second support section is provided with a through hole for the first support section to pass through, and the inner diameter of the through hole is greater than the outer diameter of the first support section.

[0017] In at least one embodiment, the vibrating brush head can vibrate in the transverse direction of the electric toothbrush, and when the first support section is assembled with the vibrating brush head, there is at least a gap in the transverse direction between the second support section and the vibrating brush head.

[0018] In at least one embodiment, the first support section comprises a flattened section, the outer wall of the flattened section comprises a convex curved surface and a flattened surface, and the flattened surface is parallel to the length direction of the first support section.

[0019] The convex curved surface is recessed with a female buckle for achieving clamping assembly with the vibrating brush head or the rotating brush head.

[0020] In at least one embodiment, a sleeve is provided between the first support section and the vibrating brush head, the outer wall of the sleeve is provided with a convex rib, the length direction of the convex rib is parallel to the axial direction of the sleeve, the convex rib is provided with a protruding portion, and the top end of the protruding portion is provided with an interference assembly with the vibrating brush head.

[0021] In at least one embodiment, the sleeve is provided with an assembly hole for the first support section to enter, the inner wall of the assembly hole is provided with a first male buckle, and the first male buckle can be clamped with the female buckle;

[0022] The inner wall of the assembly hole is also provided with a slope platform, and the slope platform can be in contact with the flattened surface.

[0023] In at least one embodiment, the outer wall of the second support section comprises a plurality of outward convex abutting portions, the abutting portions are arranged in mirror symmetry or annular array around the center line of the second support section, and the abutting portions are interference assembled with the rotating brush head.

[0024] In at least one embodiment, the connecting rod comprises a second male buckle, and the second male buckle can be clamped with the female buckle.

[0025] In at least one embodiment, an identification point is arranged on the tenon, which can identify whether the tenon is assembled with the vibrating toothbrush head or the rotating toothbrush head, and the identification point uses physical contact point identification, circuit connection identification, radio frequency tag identification, light identification or near field communication identification.

[0026] The electric toothbrush of the present application has the following advantages: the toothbrush handle can be assembled with both the vibrating toothbrush head and the rotating toothbrush head, and the two toothbrush heads can work in their respective working modes. Only the vibrating toothbrush head or the rotating toothbrush head needs to be replaced, and the working mode of the electric toothbrush can be changed to the electric toothbrush with different working principles and different cleaning effects.

[0027] The different toothbrush heads are assembled with different parts of the tenon, which facilitates targeted limiting and function differentiation. The first support section can be directly assembled with the vibrating toothbrush head, so that the vibration of the first support section is directly transmitted to the vibrating toothbrush head. The first support section and the second support section are both assembled with the rotating toothbrush head, which facilitates driving the bristles of the rotating toothbrush head to rotate.

[0028] One toothbrush handle plus two toothbrush heads can be used to switch the vibration or rotation function according to individual needs and oral conditions to find a suitable cleaning method for the user. There is no need to purchase two separate electric toothbrushes, which saves the purchase cost, saves space and improves portability. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0030] Figure 1 is a side view of the toothbrush handle of an embodiment of the electric toothbrush of the present application;

[0031] Figure 2 is Figure 1 is a partial enlarged view of A of the electric toothbrush of

[0032] Figure 3 is a partial perspective view of the toothbrush handle of an embodiment of the electric toothbrush of the present application;

[0033] Figure 4 is a partial perspective view of the toothbrush handle of an embodiment of the electric toothbrush of the present application;

[0034] Figure 5 is a partial perspective view of the toothbrush handle of an embodiment of the electric toothbrush of the present application;

[0035] Figure 6 is a perspective view of a sleeve of an electric toothbrush according to an embodiment of the present application;

[0036] Figure 7 is a longitudinal sectional view of a first use state of an electric toothbrush according to the present application;

[0037] Figure 8 is a longitudinal sectional view of a second use state of an electric toothbrush according to the present application; Figure 7 is a partial enlarged view of B of the electric toothbrush according to the present application;

[0038] Figure 9 is a longitudinal sectional view of a second use state of an electric toothbrush according to the present application;

[0039] Figure 10 is a longitudinal sectional view of a second use state of an electric toothbrush according to the present application.

[0040] BRIEF DESCRIPTION OF DRAWINGS

[0041] 1 - bottom cover assembly; 2 - battery; 3 - PCB board; 4 - light shield; 5 - motor; 6 - handle housing; 7 - oscillating toothbrush head; 8 - rotating toothbrush head; 81 - connecting rod; 82 - round brush head; 83 - brush rod housing; 84 - second male buckle; 85 - positioning hole; 9 - first support section; 91 - flat surface; 92 - female buckle; 93 - chamfer; 94 - convex curved surface; 10 - second support section; 101 - inwardly recessed surface; 102 - stop portion; 104 - third male buckle; 11 - sleeve; 111 - assembly hole; 112 - raised strip; 113 - raised portion; 114 - window hole; 115 - ramp; 116 - first male buckle; 12 - gap; 13 - through hole DETAILED DESCRIPTION

[0042] The exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the specific description is only for teaching the person skilled in the art how to implement the present application, and is not intended to exhaust all possible ways of the present application, nor to limit the scope of the present application.

[0043] Hereinafter, the length direction of the electric toothbrush will also be referred to as the longitudinal direction or the axial direction, which corresponds to the X direction in the drawings; the extending direction of the bristles of the toothbrush head will be referred to as the front-rear direction, which corresponds to the Y direction in the drawings, from the perspective of the user. Figure 1 , Figure 7 As can be seen from

[0044] Referring to Figure 2 , Figure 3 , Figure 4 ,Figure 7 、 Figure 9 The embodiments of the present application provide an electric toothbrush, which can be a dual-purpose electric toothbrush of vibration and rotation. The electric toothbrush comprises a toothbrush handle and a toothbrush head. Wherein, Figure 1 the complete toothbrush handle is shown, and one end of the toothbrush handle is provided with a tenon. As shown in Figure 2 , the tenon comprises a first support section 9, and another section is a second support section 10. The toothbrush head is replaceable and selectable. The toothbrush head comprises a vibrating toothbrush head 7 and a rotating toothbrush head 8, the first support section 9 is matched with the vibrating toothbrush head 7, and the second support section 10 is matched with the rotating toothbrush head 8. As shown in Figure 9 , the rotating toothbrush head 8 at least comprises a brush rod shell 83 and a circular brush head 82, the inside of the brush rod shell 83 is provided with a connecting rod 81, and the connecting rod 81 and the circular brush head 82 constitute a crank rocker mechanism.

[0045] The first support section 9 can be matched with the connecting rod inside the rotating toothbrush head 8, and the second support section 10 is matched with the brush rod shell of the rotating toothbrush head 8, the crank rocker mechanism converts the transverse swing of the first support section 9 into the rotating movement of the circular brush head (bristles) of the rotating toothbrush head around the central axis, and the relative position of the second support section 10 to the brush rod shell of the rotating toothbrush head 8 does not change, so as to ensure the normal work of the crank rocker mechanism.

[0046] The second support section 10 surrounds the base end part of the first support section 9 Figure 2 (lower end part), and the front end part of the first support section 9 is exposed from the second support section 10. The first support section 9 can move relative to the second support section 10.

[0047] As shown in Figure 7 、 Figure 8 , when the first support section 9 is matched with the vibrating toothbrush head 7, the first support section 9 has a transverse (which can correspond to the Z direction in the drawing) vibration freedom degree relative to the second support section 10, and the length direction of the electric toothbrush (which can correspond to the X direction in the drawing) is longitudinal, and the transverse in the transverse vibration freedom degree refers to the direction perpendicular to the longitudinal direction (which can correspond to the X direction in the drawing) and the front and back direction (which can correspond to the Y direction in the drawing), and the transverse can also be called the left and right direction. As shown in Figure 9 、 Figure 10 , the perspective view of Figure 10 compared with Figure 9The perspective of the second support section 10 is rotated by 90°, and when the second support section 10 is assembled with the rotating toothbrush head 8, the second support section 10 is limited in assembly with the brush rod shell 83, and the first support section 9 is limited in assembly with the connecting rod 81, and the first support section 9 has a transverse vibration (or swing) freedom relative to the second support section 10. That is, whether the vibrating toothbrush head 7 is in operation or the rotating toothbrush head 8 is in operation, the first support section 9 has movement relative to the second support section 10. The respective structures of the first support section 9 and the second support section 10 are simple and reliable, and the assembly of the vibrating toothbrush head 7 and the rotating toothbrush head 8 is also easy to implement.

[0048] In an embodiment, the first support section 9 and the vibrating toothbrush head 7 are implemented in interference assembly or clamping assembly. The second support section 10 and the rotating toothbrush head 8 are implemented in interference assembly or clamping assembly.

[0049] Regardless of the choice of interference assembly or clamping assembly, the main idea is to ensure that the vibrating toothbrush head 7, the rotating toothbrush head 8, and the tenon can be quickly disassembled, replaced, and fixed.

[0050] As shown in Figure 2 In an embodiment, the first support section 9 as a whole (or the front end of the first support section 9) is closer to the top end of the toothbrush handle (the end close to the toothbrush head) than the second support section 10. In other words, the longitudinal distance from the first support section 9 to the centroid of the toothbrush handle is greater than the longitudinal distance from the second support section 10 to the centroid of the toothbrush handle. That is, the second support section 10 is located at the root of the tenon, and the first support section 9 is located at the top end of the tenon, that is, the second support section 10 is located at a lower position relative to the first support section 9 in the longitudinal direction (which can correspond to the X direction in the drawing). In addition, the transverse dimension and the front direction dimension of the second support section 10 are also greater than the transverse dimension and the front direction dimension of the first support section 9, respectively. In this way, it can be ensured that the two different types of toothbrush heads have their own dedicated installation positions, and the installation accuracy is guaranteed.

[0051] As shown in Figure 3 , Figure 4 The second support section 10 has a through hole 13 for the first support section 9 to move through, and the inner diameter of the through hole 13 is greater than the outer diameter of the first support section 9. Because the first support section 9 always has movement relative to the second support section 10, the through hole 13 gives space to the movement of the first support section 9 and does not limit the vibration (swing movement) of the first support section 9, and also gives some space in the radial direction to ensure that the first support section 9 can vibrate smoothly.

[0052] In an embodiment, when the first support section 9 is assembled with the vibrating toothbrush head 7, there is at least a gap in the transverse direction between the second support section 10 and the vibrating toothbrush head 7. As shown in Figure 8As shown, there is also a gap 12 between the second support section 10 and the vibrating toothbrush head 7 in the front-rear direction. The brush rod of the vibrating toothbrush head 7 can be an integral structure, and the two ends of the vibrating toothbrush head 7 tend to have a large shaking amplitude during vibration. These gaps can avoid interference between the second support section 10 and the vibrating vibrating toothbrush head 7 in vibration, and ensure the smoothness and stability of vibration.

[0053] As shown in the drawings, Figure 3 , Figure 4 In an embodiment, the first support section 9 includes a flattened section, the outer wall of the flattened section includes a convex curved surface 94 and a flattened surface 91, the flattened surface 91 is parallel to the length direction of the first support section 9 (which can correspond to the X direction in the drawings), and the cross-sectional profile of the flattened section can be D-shaped, that is, an arc shape including a semicircle. The convex curved surface 94 is recessed with a female buckle 92 for clamping assembly with the vibrating toothbrush head 7.

[0054] The first support section 9 is not a regular cylinder, and the special cross-sectional shape of the first support section 9 can limit the rotation and loosening tendency of the tenon after assembly with the toothbrush head.

[0055] As shown in the drawings, Figure 3 , Figure 4 In an embodiment, the top end of the first support section 9, that is, the top end of the tenon, has a chamfer 93, which can reduce the alignment accuracy when the tenon is assembled with different toothbrush heads.

[0056] As shown in the drawings, Figure 6 , Figure 7 , Figure 8 In an embodiment, a sleeve 11 is arranged between the first support section 9 and the vibrating toothbrush head 7, the outer wall of the sleeve 11 has a convex rib 112, the length direction of the convex rib 112 (which can correspond to the X direction in the drawings) is parallel to the axial direction of the sleeve 11 (which can correspond to the X direction in the drawings), and the convex rib 112 has a convex portion 113, the top end of the convex portion 113 is in interference assembly with the vibrating toothbrush head 7.

[0057] The sleeve 11 facilitates changing the outer profile shape of the first support section 9 in the tenon to facilitate assembly with a specific vibrating toothbrush head 7.

[0058] As shown in the drawings, Figure 6 A pair of convex ribs 112 are mirror-symmetrically distributed on both sides of the sleeve 11, and each convex rib 112 has two convex portions 113, which can have four convex portions 113 participating in interference assembly. The cross-sectional profile of the convex rib 112 and the convex portion 113 can be rectangular.

[0059] The inner wall of the vibrating toothbrush head 7 is provided with two clamping grooves, and the distance between the two clamping grooves is designed to be slightly smaller than the width between the two convex rib strips 112 of the sleeve 11. When the vibrating toothbrush head 7 is installed, the clamping grooves need to be moderately expanded outward to adapt to the width of the tenon sleeve with the sleeve 11. This design ensures the close contact between the vibrating toothbrush head 7 and the tenon, making the vibrating toothbrush head 7 more stable during use, reducing the risk of loosening and falling.

[0060] As shown in FIG. 1, in an embodiment, the sleeve 11 has an assembly hole 111 at one end for the first support section 9 to enter. Figure 6 As shown in FIG. 2, the inner wall of the assembly hole 111 is provided with a first male buckle 116, which can be assembled with the female buckle 92. Figure 8 As shown in FIG. 3, the inner wall of the assembly hole 111 is also provided with a slope platform 115, which can be in contact with the chamfered surface 91. The slope of the slope platform 115 is towards the opening direction of the assembly hole 111. The slope of the slope platform 115 serves to guide the slight movement of the tenon in the front and back directions, and finally the top of the slope platform 115 abuts against the chamfered surface 91 of the tenon, thereby achieving the effect of firm assembly of the first male buckle 116 and the female buckle 92. Figure 6 Figure 8 As shown in FIG. 4, in an embodiment, the sleeve 11 has a window hole 114 that penetrates through the inside and outside. The window hole 114 facilitates the destruction of the blind hole feature of the assembly hole 111, and facilitates the smooth entry of the first support section 9 into the assembly hole 111.

[0061] As shown in FIG. 5, in an embodiment, the sleeve 11 has a window hole 114 that penetrates through the inside and outside. The window hole 114 facilitates the destruction of the blind hole feature of the assembly hole 111, and facilitates the smooth entry of the first support section 9 into the assembly hole 111. Figure 6 As shown in FIG. 6, in an embodiment, the outer wall of the second support section 10 includes a plurality of outwardly protruding stop portions 102, which are arranged in mirror symmetry or in a ring array around the center line of the second support section 10, and the stop portions 102 are in interference assembly with the rotating toothbrush head 8. The stop portions 102 are used to limit the shaking of the rotating toothbrush head 8 and improve the stability during use.

[0062] As shown in FIG. 7, in an embodiment, the outer wall of the second support section 10 includes a plurality of outwardly protruding stop portions 102, which are arranged in mirror symmetry or in a ring array around the center line of the second support section 10, and the stop portions 102 are in interference assembly with the rotating toothbrush head 8. The stop portions 102 are used to limit the shaking of the rotating toothbrush head 8 and improve the stability during use. Figure 3 Figure 4 As shown in FIG. 8, in an embodiment, the outer wall of the second support section 10 includes a plurality of outwardly protruding stop portions 102, which are arranged in mirror symmetry or in a ring array around the center line of the second support section 10, and the stop portions 102 are in interference assembly with the rotating toothbrush head 8. The stop portions 102 are used to limit the shaking of the rotating toothbrush head 8 and improve the stability during use.

[0063] ​​The length direction of the stop portion 102 (which may correspond to the X direction in the figure) may be parallel to the length direction of the second support segment 10 (which may correspond to the X direction in the figure). The end of the stop portion 102 facing the first support segment 9 may have a chamfer, which is to facilitate the assembly of the second support segment 10 with the rotary toothbrush head 8. The outer wall of the second support segment 10 also has a radially inwardly tapering surface 101 in the position where the stop portion 102 is not present. There may be two of each of the tapering surface 101 and the stop portion 102, and the lateral distance between a pair of tapering surfaces 101 is smaller than the lateral distance between a pair of stop portions 102. The tapering surface 101 does not contact the rotary toothbrush head 8. In a non-limiting example, the line connecting a pair of stop portions 102 is perpendicular to the chamfered plane 91.

[0064] The second support section 10 can be an injection molded part, which can be an injection molded part integrally formed with the toothbrush handle body, that is, to ensure that the brush rod shell 83 of the rotating toothbrush head 8 is relatively fixed with the toothbrush handle body after installation.

[0065] like Figure 9 As shown, in one embodiment, the surface of the connecting rod 81 of the rotating toothbrush head 8 has a second male buckle 84 protruding, which can be engaged with the female buckle 92. In this way, the connecting rod 81 can move synchronously with the first support section 9.

[0066] In addition, such as Figure 9 As shown, the side of the second support section 10 may have a protruding third male buckle 104, and the brush handle housing 83 has a positioning hole 85, which the third male buckle 104 can engage with the positioning hole 85. The third male buckle 104 and the positioning hole 85 provide a more secure locking capability. Whether it is the engagement of the first male buckle 116 and the female buckle 92, the engagement of the second male buckle 84 and the female buckle 92, or the engagement of the third male buckle 104 and the positioning hole 85, all are mechanical locking mechanisms that prevent the toothbrush head from rotating or loosening during use. In particular, when users install the vibrating toothbrush head 7 or the rotating toothbrush head 8, they will feel a noticeable locking sensation, reminding them that the toothbrush head has been correctly installed. The third male buckle 104 essentially supplements the function of the stop part 102.

[0067] In an embodiment, the tenon is provided with an identification point, which can identify whether the tenon is assembled with the vibrating toothbrush head 7 or the rotating toothbrush head 8. The identification principle of the identification point includes but is not limited to physical contact point identification, circuit connection identification, RFID (Radio Frequency Identification, i.e. radio frequency tag identification), optical identification, NFC (Near Field Communication, i.e. near field communication identification). Among them, the principle of radio frequency tag identification is that the reader and the tag carry out non-contact data communication between them to achieve the purpose of identifying the target, that is, the tenon and the toothbrush head can be respectively provided with a reader and a tag at a designated position. Near field communication identification is developed on the basis of non-contact radio frequency identification technology combined with wireless interconnection technology. Near field refers to the radio wave of the adjacent electromagnetic field. The arrangement position of the identification point can be on the cutting plane 91, which has a relatively sufficient plane for arrangement. The identification point of a certain principle can be selected according to actual needs.

[0068] As shown in Figure 7 The outer surface of the toothbrush handle is wrapped by the handle shell 6. In the direction towards the toothbrush head, the handle shell 6 is sequentially provided with the bottom cover assembly 1, the battery 2, and the motor 5. The same side of the battery 2 and the motor 5 is provided with the PCB board 3, which is located in the interior of the handle shell 6. The PCB board 3 is further covered with the light shielding piece 4, which facilitates the formation of a hidden panel.

[0069] Among them, the motor 5 is connected with a power rod, which passes through the second support section 10 and protrudes from the first support section 9 of the tenon at one end of the second support section 10. Here, the part of the power rod connected with the first support section 9 and located in the second support section 10 can be referred to as the base end part of the first support section 9. The motor 5 at least has the function of driving the power rod to vibrate.

[0070] In a non-limiting example, the vibration frequency of the motor or the motor-driven component can be 40-450hz, the corresponding vibration frequency of the vibrating toothbrush head can be 150-450hz, and the corresponding vibration frequency of the rotating toothbrush head can be 40-150hz. Whether to work in vibration mode or in rotation mode can be selected by adjusting the frequency of the electric toothbrush.

[0071] The operation mode of the first embodiment of the electric toothbrush of the present application is as follows:

[0072] Step S101, installing the vibrating toothbrush head 7: the user installs the vibrating toothbrush head 7 to the tenon of the toothbrush handle. The vibrating toothbrush head 7 is tightly fitted with the first supporting section 9 by interference assembly. Step S102, identifying the type of the brush head: because the tenon is designed with identification points, the toothbrush handle can identify the type of the installed brush head. Step S103, signal transmission: after identifying the vibrating toothbrush head 7, the tenon sends a first signal to the control system in the toothbrush handle. Step S104, adjusting the mode: after receiving the first signal, the control system adjusts the working mode of the electric toothbrush to meet the requirements of the vibrating toothbrush head 7. The control system sets appropriate parameters such as speed, angle and torque to ensure the best cleaning effect. Step S105, starting the electric toothbrush: the user presses the start button of the electric toothbrush, and the electric toothbrush starts to work. The control system drives the motor 5 to operate in the set state according to the previously adjusted mode.

[0073] The operation mode of the second embodiment of the electric toothbrush of the present application is as follows:

[0074] Step S201, installing the rotating toothbrush head 8: the user installs the rotating toothbrush head 8 to the tenon of the toothbrush handle. Different parts of the rotating toothbrush head 8 are tightly fitted with the second supporting section 10 and the first supporting section 9 respectively. Step S202, identifying the type of the brush head: because the tenon is designed with identification points, the toothbrush handle can identify the type of the installed brush head. Step S203, signal transmission: after identifying the rotating toothbrush head 8, the tenon sends a second signal to the control system in the toothbrush handle. Step S204, adjusting the mode: after receiving the second signal, the control system adjusts the working mode of the electric toothbrush to meet the requirements of the rotating toothbrush head 8. The control system sets appropriate parameters such as speed, angle and torque to ensure the best cleaning effect. Step S205, starting the electric toothbrush: the user presses the start button of the electric toothbrush, and the electric toothbrush starts to work. The control system drives the motor to operate in the set rotating mode according to the previously adjusted mode.

[0075] The above embodiments are only for illustrating the technical concept and characteristics of the present application, the purpose of which is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. An electric toothbrush, characterized in that, include: A toothbrush handle, one end of which has a tenon protruding, the tenon including a first support section and a second support section, the second support section surrounding the base end of the first support section, the first support section being movable relative to the second support section, and a motor for driving the first support section to move is provided inside the toothbrush handle; A toothbrush head includes a vibrating toothbrush head and a rotating toothbrush head. A first support section can be assembled with the vibrating toothbrush head, so that the motor can drive the vibrating toothbrush head to vibrate via the first support section. The first support section and the second support section can be assembled with the rotating toothbrush head, so that the motor can drive the bristles of the rotating toothbrush head to rotate via the first support section.

2. The electric toothbrush according to claim 1, characterized in that: The first support section can be interference-fitted and / or snap-fitted with the vibrating toothbrush head and the rotating toothbrush head; and / or The second support section can be gap-fitted with the vibrating toothbrush head, and the second support section can be interference-fitted and / or snap-fitted with the rotating toothbrush head.

3. The electric toothbrush according to claim 1, characterized in that: The rotary toothbrush head includes a brush handle housing and a round brush head. The brush handle housing contains a connecting rod, and the connecting rod and the round brush head constitute a crank-rocker mechanism.

4. The electric toothbrush according to claim 1, characterized in that: The first support segment is closer to the top of the toothbrush handle than the second support segment; The second support segment has a through hole through which the first support segment can move, and the inner diameter of the through hole is larger than the outer diameter of the first support segment.

5. The electric toothbrush according to claim 1, characterized in that: The vibrating toothbrush head is capable of vibrating in the lateral direction of the electric toothbrush. When the first support section is assembled with the vibrating toothbrush head, there is at least a lateral gap between the second support section and the vibrating toothbrush head.

6. The electric toothbrush according to claim 3, characterized in that: The first support segment includes a flattened segment, the outer wall of which includes a convex curved surface and a flattened surface, the flattened surface being parallel to the length direction of the first support segment; The convex curved surface has a recessed female buckle that engages with the vibrating toothbrush head or the rotating toothbrush head.

7. The electric toothbrush according to claim 6, characterized in that: A sleeve is provided between the first support section and the vibrating toothbrush head. The outer wall of the sleeve has a raised rib. The length direction of the raised rib is parallel to the axial direction of the sleeve. The raised rib has a protrusion. The top of the protrusion is interference-fitted with the vibrating toothbrush head.

8. The electric toothbrush according to claim 7, characterized in that: The sleeve has an assembly hole for the first support section to enter, and the inner wall of the assembly hole has a first male buckle that can be engaged with the female buckle. The inner wall of the assembly hole also has a ramp that can contact the cut surface.

9. The electric toothbrush according to claim 1, characterized in that: The outer wall of the second support section includes several protruding abutment portions, which are arranged in a mirror symmetrical manner or in a ring array around the center line of the second support section. The abutment portions are interference-fitted with the rotating toothbrush head.

10. The electric toothbrush according to claim 6, characterized in that: The connecting rod includes a second male buckle, which can be engaged with the female buckle.

11. The electric toothbrush according to claim 1, characterized in that: The tenon is provided with an identification point, which can identify and distinguish whether the toothbrush head or the rotating toothbrush head is assembled with the tenon. The identification point uses physical contact point identification, circuit connection identification, radio frequency tag identification, optical identification or near field communication identification.

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