CN219501232U - Toothbrush core and electric toothbrush - Google Patents

Abstract

The utility model relates to the field of toothbrushes, and provides a toothbrush movement and an electric toothbrush, wherein the toothbrush movement comprises a shell, a driving assembly and a coil assembly, and the shell is provided with a mounting cavity and an output port communicated with the mounting cavity; the driving assembly comprises a driving piece, a magnetic piece and an output shaft, the driving piece is slidably arranged in the mounting cavity, the output shaft is arranged at the output end of the driving piece and penetrates through the output port, the magnetic piece is arranged on the driving piece, and the driving piece drives the output shaft to rotate in a reciprocating manner; the coil component is arranged in the mounting cavity, the coil component is spaced from the magnetic component, and the coil component is suitable for receiving an electric signal with alternating current directions so as to enable the magnetic component to be subjected to alternating attractive force and repulsive force, and accordingly the driving component is driven to slide in the mounting cavity. According to the utility model, the output shaft is driven to carry out reciprocating rotation and telescopic motion, so that the brush head connected with the output shaft has two degrees of freedom of motion, and the tooth cleaning efficiency is improved.

Description

Toothbrush core and electric toothbrush

Technical Field

The utility model relates to the technical field of toothbrushes, in particular to a toothbrush core and an electric toothbrush.

Background

The electric toothbrush can make the brush head generate high-frequency vibration through the rapid rotation or vibration of the motor core, instantly decompose toothpaste into fine foam, deeply clean the gaps between teeth, and meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massaging effect on gum tissues. Most of electric toothbrushes in the market at present are rotary type single motion trail motions, the motion trail is single, and teeth cannot be cleaned more efficiently.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides a toothbrush core, which aims to drive an output shaft to do reciprocating rotation and telescopic motion, so that a brush head connected with the output shaft has two degrees of freedom of motion, and the tooth cleaning efficiency is improved.

The utility model also provides an electric toothbrush.

An embodiment of a toothbrush cartridge according to the first aspect of the present utility model includes:

the shell is provided with a mounting cavity and an output port communicated with the mounting cavity;

the driving assembly comprises a driving piece, a magnetic piece and an output shaft, wherein the driving piece is slidably arranged in the mounting cavity, the output shaft is arranged at the output end of the driving piece and penetrates through the output port, the magnetic piece is arranged on the driving piece, and the driving piece drives the output shaft to rotate in a reciprocating manner;

the coil assembly is arranged in the mounting cavity, the coil assembly is spaced from the magnetic piece, and the coil assembly is suitable for receiving an electric signal with alternating current directions so that the magnetic piece is subjected to alternating attractive force and repulsive force, and the driving piece is driven to slide in the mounting cavity.

According to the toothbrush machine core disclosed by the embodiment of the utility model, the mounting cavity is formed by the shell and is used for mounting the driving assembly and the coil assembly, and the shell is provided with the output port for the output shaft to pass through, so that the output shaft is conveniently connected with the brush head of the toothbrush. The output shaft is arranged at the output end of the driving piece, and the driving piece drives the output shaft to rotate in a reciprocating manner. Meanwhile, the coil assembly receives an electric signal with alternating current directions, so that the magnetic poles of the coil assembly are alternately changed, and the magnetic piece is arranged on the driving piece, so that the coil assembly and the magnetic piece generate attractive or repulsive magnetic force, and the magnetic piece drives the driving piece to slide in the mounting cavity. That is, the magnetic member is subjected to attractive force and repulsive force which are alternately changed through the change of the magnetic field, so that the driving member drives the output shaft to displace back and forth. Therefore, the output shaft has two degrees of freedom of movement through the driving piece and the magnetic field change, so that the toothbrush head connected with the output shaft can move in multiple directions, and the tooth cleaning efficiency is improved.

According to one embodiment of the utility model, the driving member comprises a sliding member and a driving body, wherein the sliding member is in sliding connection with the cavity wall of the mounting cavity, the driving body is arranged on the sliding member, the magnetic member is arranged on the sliding member, and the output shaft is arranged at the output end of the driving body.

According to one embodiment of the utility model, the wall of the mounting cavity is provided with a chute, the extending direction of the chute is consistent with the extending direction of the output shaft, and the sliding piece is provided with a guiding structure, and the guiding structure can slide along the chute.

According to one embodiment of the utility model, the sliding piece is sleeved on the driving body, lubricating oil is arranged between the sliding piece and the cavity wall of the installation cavity, and the sliding piece is in sliding abutting connection with the cavity wall of the installation cavity.

According to one embodiment of the utility model, the sliding element and/or the wall of the mounting chamber is provided with ribs, the direction of extension of which corresponds to the direction of extension of the output shaft.

According to one embodiment of the present utility model, the sliding member is made of an elastic material, and the sliding member is in interference fit connection with the driving body.

According to one embodiment of the utility model, the coil assembly comprises:

the fixing frame is arranged at one end in the mounting cavity, the magnetic piece is arranged at one end, adjacent to the fixing frame, of the driving piece, and the fixing frame is spaced from the magnetic piece;

and the coil is wound on the fixing frame.

According to one embodiment of the utility model, a limiting structure is arranged on one side of the fixing frame facing the magnetic piece, and the limiting structure is located between the coil and the magnetic piece.

According to one embodiment of the utility model, the fixing frame is provided with a hollow cavity, and the magnetic piece is arranged in the hollow cavity in a penetrating mode.

According to one embodiment of the utility model, the driving assembly further comprises a first elastic member, one end of the first elastic member is connected with one end of the driving member facing the output port, the other end of the first elastic member is connected with the cavity wall of the mounting cavity, and the extending direction of the first elastic member is consistent with the extending direction of the output shaft.

According to one embodiment of the utility model, the driving assembly further comprises a second elastic member, one end of the second elastic member is connected with one end of the driving member, which faces away from the output port, the other end of the second elastic member is connected with the cavity wall of the mounting cavity, and the extending direction of the second elastic member is consistent with the extending direction of the output shaft.

According to one embodiment of the utility model, the housing comprises a mounting shell and a dust cover, the mounting shell is connected with the dust cover to form the mounting cavity, and one end of the driving piece, which faces away from the output shaft, is connected with the dust cover to form the dust cavity.

An electric toothbrush according to an embodiment of the second aspect of the present utility model includes:

a body;

the toothbrush core is arranged on the machine body.

The electric toothbrush according to the embodiment of the utility model comprises the toothbrush core, so that the electric toothbrush has all technical effects of the toothbrush core and is not repeated herein.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a toothbrush movement according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of B-B in FIG. 1;

FIG. 3 is a cross-sectional view of C-C of FIG. 1;

FIG. 4 is a front view of a toothbrush cartridge provided by an embodiment of the present utility model;

FIG. 5 is a cross-sectional view of D-D of FIG. 4;

fig. 6 is an exploded view of a toothbrush cartridge provided in an embodiment of the present utility model.

Reference numerals:

100. a toothbrush movement; 1. a housing; 11. a mounting cavity; 12. a mounting shell; 121. an output port; 13. a dust cover; 14. a chute; 21. a driving member; 211. a driving body; 212. a slider; 2121. a guide structure; 22. a magnetic member; 23. an output shaft; 24. a first elastic member; 25. a second elastic member; 3. a coil assembly; 31. a fixing frame; 311. a limit structure; 312. a hollow cavity; 32. a coil.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

Referring to fig. 1 and 2 in combination, a toothbrush core 100 according to a first aspect of the present utility model includes a housing 1, a driving assembly and a coil assembly 3, wherein the housing 1 is provided with a mounting cavity 11 and an output port 121 communicating with the mounting cavity 11; the driving assembly comprises a driving piece 21, a magnetic piece 22 and an output shaft 23, wherein the driving piece 21 is slidably arranged in the mounting cavity 11, the output shaft 23 is arranged at the output end of the driving piece 21 and penetrates through the output port 121, the magnetic piece 22 is arranged on the driving piece 21, and the driving piece 21 drives the output shaft 23 to rotate in a reciprocating manner; the coil assembly 3 is disposed in the mounting cavity 11, the coil assembly 3 is spaced from the magnetic member 22, and the coil assembly 3 is adapted to receive an electrical signal with alternating current directions, so that the magnetic member 22 is subjected to alternating attractive and repulsive forces, thereby driving the driving member 21 to slide in the mounting cavity 11.

In this embodiment, the housing 1 is cylindrical or rectangular, the output port 121 is disposed on an end surface of the housing 1, the driving member 21 is slidably disposed in the mounting cavity 11, and the driving member 21 slides along a length direction of the housing 1, so that the output shaft 23 movably passes through the output port 121 and is displaced along an axial direction of the output port 121. It will be appreciated that the shape of the output aperture 121 is adapted to the output shaft 23 and that the output aperture 121 is sized larger than the diameter of the output shaft 23 to facilitate displacement of the output shaft 23 back and forth. Illustratively, the output shaft 23 is cylindrical, and the output port 121 is a circular hole; the output shaft 23 is rectangular, and the output port 121 is a square hole, and the shapes of the output shaft 23 and the output port 121 are not limited here. The driving member 21 may be a motor, a rotary cylinder, or the like, as long as it can drive the output shaft 23 to reciprocate, and is not limited herein. It will be appreciated that the driving member 21 may be slid into the mounting cavity 11 by providing a guide rail or chute 14 in the cavity wall of the mounting cavity 11, the sliding direction of the driving member 21 being coincident with the extending direction of the output shaft 23. The magnetic member 22 may be fixed to the driving member 21 by means of adhesion, clamping, screwing, or snap-fastening, and the like, which is not limited herein.

It should be noted that the coil assembly 3 may be electrically connected to the control circuit board, and the control circuit board outputs an electrical signal of alternating current to the coil assembly 3, so that the magnetic poles of the coil assembly 3 are alternately changed. It will be appreciated that a magnetic material (e.g., a silicon steel sheet) may be provided within the coil assembly 3 such that when the coil assembly 3 receives an electrical signal alternating current direction, the silicon steel sheet is magnetized and the magnetic poles are alternately changed. Thus, the attractive force and the repulsive force which are alternately changed are generated between the silicon steel sheet and the magnetic piece 22, so that the magnetic piece 22 moves reciprocally to drive the driving piece 21 to slide in the mounting cavity 11. It will be appreciated that the output end of the driver 21 is spaced from the wall of the mounting cavity 11 to form a movable space to facilitate sliding of the driver 21 within the mounting cavity 11.

According to the toothbrush core 100 of the embodiment of the utility model, the mounting cavity 11 is arranged through the shell 1 and is used for mounting the driving component and the coil component 3, the shell 1 is provided with the output port 121 for the output shaft 23 to pass through, and the output shaft 23 is convenient to be connected with the brush head of the toothbrush. The output shaft 23 is provided at the output end of the driving member 21, and the driving member 21 drives the output shaft 23 to reciprocate. Meanwhile, the coil assembly 3 receives an electric signal with alternating current directions, so that the magnetic poles of the coil assembly 3 are alternately changed, and therefore, the magnetic piece 22 is arranged on the driving piece 21, and the coil assembly 3 and the magnetic piece 22 generate attractive or repulsive magnetic force, so that the magnetic piece 22 drives the driving piece 21 to slide in the mounting cavity 11. That is, the magnetic member 22 is subjected to the alternately changing attractive force and repulsive force by the change of the magnetic field, so that the driving member 21 drives the output shaft 23 to displace back and forth. In this way, the output shaft 23 has two degrees of freedom of movement by the driving member 21 and the magnetic field variation, so that the toothbrush head connected to the output shaft 23 can move in multiple directions, thereby improving the tooth cleaning efficiency.

It can be appreciated that the telescopic motion and the driving rotation reciprocating motion of the driving output shaft 23 of the toothbrush core 100 according to the embodiment of the utility model are completely and independently separated, so that the motion effect is better, different reciprocating motor standard components can be adapted, the size of the driving component 21 can be changed according to the selection, and the structure application design is more flexible.

Referring to fig. 4 and 5 in combination, according to an embodiment of the utility model, the driving member 21 includes a sliding member 212 and a driving body 211, the sliding member 212 is slidably connected to a wall of the installation cavity 11, the driving body 211 is disposed on the sliding member 212, the magnetic member 22 is disposed on the sliding member 212, and the output shaft 23 is disposed at an output end of the driving body 211.

In this embodiment, in order to facilitate the sliding of the driving body 211, the driving body 211 is mounted on the sliding member 212, and the driving body 211 is driven by the sliding member 212 to slide in the mounting cavity 11. It can be appreciated that sliding wear on the driving body 211 can be reduced by sliding the sliding member 212, the service life of the driving body 211 can be prolonged, and only the sliding member 212 needs to be replaced when the sliding member 212 is worn, so that the driving body 211 does not need to be replaced, and the replacement cost is reduced. The sliding member 212 may be a sliding bracket or a sliding sleeve, and the sliding member 212 and the driving body 211 may be connected by a detachable connection such as a snap connection, a screw connection, or an insertion connection, so as to improve the convenience of assembly and disassembly, or may be connected by a fixed connection such as an adhesive connection, a welding connection, or the like, so as to improve the connection stability. The sliding member 212 may slide on the wall of the installation cavity 11 through a sliding rail or a sliding slot 14, and the sliding direction of the sliding member 212 is consistent with the extending direction of the output shaft 23, so as to drive the output shaft 23 to stretch and retract. The magnetic member 22 is disposed at an end of the sliding member 212 adjacent to the coil assembly 3, and the connection manner may be a clamping connection, a plugging connection, an adhesive connection or a threaded connection, which is not limited herein. The driving body 211 may be a motor, a rotary cylinder, or the like, and is not limited herein, and the output shaft 23 is provided at one end of the driving body 211, so that the driving body 211 drives the output shaft 23 to rotate.

Referring to fig. 3 and 5 in combination, according to an embodiment of the present utility model, a wall of the installation cavity 11 is provided with a sliding groove 14, an extending direction of the sliding groove 14 is consistent with an extending direction of the output shaft 23, the sliding member 212 is provided with a guiding structure 2121, and the guiding structure 2121 can slide along the sliding groove 14.

It can be appreciated that the sliding groove 14 is elongated, and the extending direction of the sliding groove 14 is consistent with the extending direction of the output shaft 23, the guiding structure 2121 is adapted to the sliding groove 14, the guiding structure 2121 may be a rib, the rib is protruding on the outer wall of the sliding member 212, and the rib slides in the sliding groove 14. In this way, the ribs and the sliding grooves 14 cooperate with the guide sliding piece 212 to slide, so that the sliding stability is improved. Optionally, sliding grooves 14 are formed on opposite side walls in the mounting cavity 11, the guide structure 2121 includes two protruding ribs respectively disposed on opposite sides of the sliding member 212, and the two protruding ribs respectively slide in the two sliding grooves 14, so as to ensure that the forces on two sides of the sliding member 212 are uniform, and improve sliding stability.

As shown in fig. 6, according to an embodiment of the present utility model, the sliding member 212 is sleeved on the driving body 211, and lubricating oil is provided between the sliding member 212 and the wall of the installation cavity 11, and the sliding member 212 is in sliding abutment with the wall of the installation cavity 11.

In this embodiment, the sliding member 212 is shaped like a sleeve, and the sliding member 212 can be sleeved on the driving body 211 by an interference fit manner, so that the sliding member 212 is connected with the driving body 211. It will be appreciated that the slider 212 is slidable relative to the walls of the mounting cavity 11, and that in order to provide for better sliding movement of the slider 212, a lubricant is applied between the slider 212 and the walls of the mounting cavity 11 to reduce the sliding friction between the slider 212 and the walls of the mounting cavity 11, facilitating sliding movement of the slider 212.

According to an embodiment of the present utility model, the material of the sliding member 212 is an elastic material, and the sliding member 212 is connected with the driving body 211 in an interference fit manner. The sliding member 212 is made of an elastic material, so that the driving body 211 is fastened and sleeved with the sliding member 212, and the sliding member is not easy to loose, for example, rubber or silica gel is adopted for manufacturing the sliding member.

According to one embodiment of the utility model, the outer wall surface of the slider 212 is provided with ribs, optionally also at the cavity wall of the mounting cavity 11, the direction of extension of the ribs being in accordance with the direction of extension of the output shaft 23. It will be appreciated that the ribs may be a plurality of ribs in number that are parallel and spaced apart from the outer wall of the slider 212 or the wall of the mounting chamber 11 to assist in guiding the slider 212 along the wall of the mounting chamber 11. Alternatively, the ribs may be provided on the slider 212 or on the wall of the mounting cavity 11, and of course, may be provided on both the slider 212 and the wall of the mounting cavity 11, which is not limited herein.

As shown in fig. 1, according to one embodiment of the present utility model, the coil assembly 3 includes a fixing frame 31 and a coil 32, the fixing frame 31 is disposed at one end of the installation cavity 11, the magnetic member 22 is disposed at one end of the driving member 21 adjacent to the fixing frame 31, and the fixing frame 31 is spaced from the magnetic member 22; the coil 32 is wound around the holder 31.

In this embodiment, the fixing frame 31 is used for fixing the coil 32, soft magnetic materials such as silicon steel sheets can be disposed on the fixing frame 31, the coil 32 is wound on the silicon steel sheets, when the coil 32 is supplied with alternating current, the silicon steel sheets are magnetized, and the magnetic poles are alternately changed, so that the magnetic member 22 disposed on the driving member 21 can be subjected to corresponding repulsive magnetic force to drive the driving member 21 to displace. The fixing frame 31 may be fixed in the mounting cavity 11 by a snap connection, a threaded connection, or a plug connection, which is not limited herein. It will be appreciated that the fixing frame 31 is disposed at one end in the mounting cavity 11, and the driving member 21 is disposed coaxially with the fixing frame 31 so as to correspond to the magnetic member 22.

According to one embodiment of the present utility model, a limiting structure 311 is disposed on a side of the fixing frame 31 facing the magnetic member 22, and the limiting structure 311 is located between the coil 32 and the magnetic member 22.

In this embodiment, the limiting structure 311 may be a limiting protrusion, where the limiting structure 311 is used to stop between the coil 32 and the magnetic member 22, so as to prevent the magnetic member 22 from striking the coil 32 during displacement, prevent the coil 32 from loosening, and improve structural stability. Alternatively, the fixing frame 31 is spaced from the end surface of the magnetic member 22, and the limiting structure 311 is disposed at an end of the fixing frame 31 facing the magnetic member 22 to prevent the magnetic member 22 from colliding with the coil 32.

As shown in fig. 6, according to an embodiment of the present utility model, the fixing frame 31 is provided with a hollow cavity 312, and the magnetic member 22 is disposed through the hollow cavity 312. In this embodiment, the fixing frame 31 is provided with a hollow cavity 312 through which the magnetic member 22 passes, so that the magnetic member 22 is disposed at one end of the driving member 21 and passes through the hollow cavity 312, and the coil 32 surrounds the periphery of the magnetic member 22 at this time, so that the magnetic force effect of the magnetic member 22 is better.

As shown in fig. 5, according to an embodiment of the present utility model, the driving assembly further includes a first elastic member 24, one end of the first elastic member 24 is connected to an end of the driving member 21 facing the output port 121, the other end of the first elastic member 24 is connected to a wall of the mounting cavity 11, and an extending direction of the first elastic member 24 is identical to an extending direction of the output shaft 23.

In this embodiment, the first elastic member 24 elastically abuts against the end of the driving member 21 facing the output port 121 and the wall of the mounting cavity 11, respectively, so that when the driving member 21 slides in the mounting cavity 11, the driving member 21 can rebound faster by the first elastic member 24, so that the output shaft 23 can reciprocate rapidly. The first elastic member 24 may be a spring or a leaf spring, which is not limited herein.

As shown in fig. 6, according to one embodiment of the present utility model, the driving assembly further includes a second elastic member 25, one end of the second elastic member 25 is connected to an end of the driving member 21 facing away from the output port 121, the other end of the second elastic member 25 is connected to a wall of the mounting cavity 11, and an extending direction of the second elastic member 25 is consistent with an extending direction of the output shaft 23.

In this embodiment, the second elastic member 25 is disposed at an end of the driving member 21 opposite to the output port 121, and when the driving member 21 slides in the mounting cavity 11, the driving member 21 can rebound faster by the first elastic member 24, so that the output shaft 23 can reciprocate rapidly. The second elastic member 25 may be a spring or a leaf spring, which is not limited herein. It will be appreciated that the first elastic member 24 and the second elastic member 25 may be provided at the same time to enhance the elastic restoring effect. The first elastic member 24 and the second elastic member 25 are respectively located at both ends of the driving member 21.

According to one embodiment of the utility model, the housing 1 comprises a mounting shell 12 and a dust cover 13, the mounting shell 12 and the dust cover 13 are connected and enclosed to form a mounting cavity 11, and one end of the driving piece 21, which is opposite to the output shaft 23, is connected and enclosed to form a dust cavity with the dust cover 13.

In this embodiment, the mounting housing 12 and the dust cap 13 are connected to form the mounting cavity 11 to facilitate the assembly and disassembly of the components in the housing 1. It will be appreciated that the dust cover 13 is connected to one end of the driving member 21 opposite to the output shaft 23 and then connected to the mounting housing 12, so that the end surface of the driving member 21 and the dust cover 13 enclose a dust-proof cavity, and the coil assembly 3 is accommodated in the dust-proof cavity to improve the protection effect.

The electric toothbrush according to the second aspect of the present utility model includes a body and the above toothbrush movement 100, the toothbrush movement 100 being provided to the body.

The electric toothbrush according to the embodiment of the present utility model includes the above-mentioned toothbrush core 100, so that all technical effects of the above-mentioned toothbrush core 100 are provided, and will not be described herein.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. While the utility model has been described in detail with reference to the embodiments, those skilled in the art will appreciate that various combinations, modifications, or equivalent substitutions can be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and it is intended to be covered by the scope of the claims of the present utility model.

Claims (13)

1. A toothbrush cartridge, comprising:

the shell is provided with a mounting cavity and an output port communicated with the mounting cavity;

the driving assembly comprises a driving piece, a magnetic piece and an output shaft, wherein the driving piece is slidably arranged in the mounting cavity, the output shaft is arranged at the output end of the driving piece and penetrates through the output port, the magnetic piece is arranged on the driving piece, and the driving piece drives the output shaft to rotate in a reciprocating manner;

the coil assembly is arranged in the mounting cavity, the coil assembly is spaced from the magnetic piece, and the coil assembly is suitable for receiving an electric signal with alternating current directions so that the magnetic piece is subjected to alternating attractive force and repulsive force, and the driving piece is driven to slide in the mounting cavity.

2. The toothbrush cartridge of claim 1, wherein the drive member comprises a slider slidably coupled to a wall of the mounting cavity and a drive body disposed on the slider, the magnetic member disposed on the slider, and the output shaft disposed on an output end of the drive body.

3. A toothbrush movement according to claim 2, characterised in that the wall of the mounting chamber is provided with a chute, the direction of extension of which corresponds to the direction of extension of the output shaft, and the slider is provided with a guide structure, which is slidable along the chute.

4. A toothbrush movement according to claim 2, wherein the slider is sleeved on the drive body, lubricating oil is provided between the slider and the wall of the mounting cavity, and the slider is in sliding abutment with the wall of the mounting cavity.

5. A toothbrush movement according to claim 4 wherein the slide and/or the wall of the mounting cavity is provided with ribs, the direction of extension of which corresponds to the direction of extension of the output shaft.

6. The toothbrush movement of claim 4, wherein the slider is made of an elastic material, and the slider is in interference fit connection with the drive body.

7. The toothbrush cartridge of claim 1, wherein said coil assembly comprises:

the fixing frame is arranged at one end in the mounting cavity, the magnetic piece is arranged at one end, adjacent to the fixing frame, of the driving piece, and the fixing frame is spaced from the magnetic piece;

and the coil is wound on the fixing frame.

8. The toothbrush cartridge of claim 7, wherein a side of said mount facing said magnetic member is provided with a spacing structure, said spacing structure being located between said coil and said magnetic member.

9. The toothbrush movement of claim 7, wherein the mount is provided with a hollow cavity, and the magnetic member is disposed through the hollow cavity.

10. A toothbrush cartridge as claimed in any one of claims 1 to 9, wherein the drive assembly further comprises a first resilient member, one end of the first resilient member being connected to an end of the drive member facing the output port, the other end of the first resilient member being connected to a wall of the mounting cavity, the direction of extension of the first resilient member being coincident with the direction of extension of the output shaft.

11. A toothbrush cartridge as claimed in any one of claims 1 to 9, wherein the drive assembly further comprises a second resilient member, one end of the second resilient member being connected to an end of the drive member facing away from the output port, the other end of the second resilient member being connected to a wall of the mounting cavity, the direction of extension of the second resilient member being in line with the direction of extension of the output shaft.

12. A toothbrush movement as claimed in any one of claims 1 to 9 wherein the housing includes a mounting shell and a dust cap, the mounting shell and dust cap being connected to enclose the mounting cavity, and an end of the drive member facing away from the output shaft being connected to enclose the dust cap to form a dust cavity.

13. An electric toothbrush, comprising

A body;

a toothbrush cartridge as claimed in any one of claims 1 to 12, said toothbrush cartridge being provided to said body.