CN215228705U

CN215228705U - Electric toothbrush core and electric toothbrush

Info

Publication number: CN215228705U
Application number: CN202023236964.6U
Authority: CN
Inventors: 王龙
Original assignee: Wuxi Qinghe Xiao Bei Technology Co ltd
Current assignee: Wuxi Qinghe Xiao Bei Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-21
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to an electric toothbrush core and electric toothbrush belongs to oral hygiene technical field for solve current electric toothbrush's core and need fix with screw, the many problem of assembly process. The utility model discloses an electric toothbrush core, which comprises a first shell, a second shell, a motor, a battery and a circuit board, wherein the first shell is provided with a buckling piece detachably connected with the second shell, and the second shell is provided with a hooking part matched with the buckling piece; the first shell and the second shell are matched to define a motor assembly cavity for mounting the motor; the side wall of the first shell is provided with a first assembling area, the side wall of the second shell is provided with a second assembling area, and the first assembling area and the second assembling area jointly form a circuit board assembling area for mounting a circuit board; the second housing is provided with a battery mounting groove for mounting a battery. The utility model discloses a core compact structure, assembly process are simple, when saving spare part, reduce cost improves the productivity.

Description

Electric toothbrush core and electric toothbrush

Technical Field

The utility model belongs to the technical field of oral hygiene, especially, relate to an electric toothbrush core and electric toothbrush.

Background

Electric toothbrushes are highly popular because of their advantages such as good cleaning effect and convenience in use. At present, a machine core of an electric toothbrush is provided with a main support, after a motor and a battery are placed on the main support, a motor cover and the battery cover are used for covering the motor and the battery, and then the motor cover and the battery cover are screwed down by screws so as to firmly fasten the motor and the battery on the main support.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the present invention is directed to an electric toothbrush core and an electric toothbrush, which are used to solve the problems of the existing electric toothbrush core that the screw is required to be fixed and the assembling process is too many.

The purpose of the utility model is mainly realized through the following technical scheme:

the utility model provides an electric toothbrush core, which comprises a first shell, a second shell, a motor, a battery and a circuit board,

the first shell is provided with a buckle piece which is detachably connected with the second shell, and the second shell is provided with a hooking part matched with the buckle piece;

the first shell and the second shell are matched to define a motor assembly cavity for mounting the motor;

the side wall of the first shell is provided with a first assembling area, the side wall of the second shell is provided with a second assembling area, and the first assembling area and the second assembling area jointly form a circuit board assembling area for mounting a circuit board;

the second housing is provided with a battery mounting groove for mounting a battery.

Furthermore, the buckle part is located on the side wall of the first shell, the rear end of the buckle part exceeds the rear end face of the first shell, and the rear end of the buckle part is provided with a protrusion and a groove located on the front side of the protrusion.

Furthermore, the hooking part is positioned on the side wall of the second shell and comprises a convex tongue matched with the groove and a hooking groove for inserting and pulling the protrusion, and the hooking groove is positioned on the rear side of the convex tongue.

Further, the motor includes output shaft, terminal and motor main part, and the output shaft sets up the front end of motor main part, and the terminal is established at the rear end of motor main part, the motor pass through the terminal with the battery is connected.

Further, a first through hole for the output shaft to pass through is formed in the front end of the first shell, and a first mounting groove communicated with the first through hole is formed in the rear end of the first shell;

the front end of the second shell is provided with a second mounting groove;

the first mounting groove and the second mounting groove together form the motor mounting cavity.

Further, the battery mounting groove is located behind the second mounting groove.

Furthermore, a second through hole for the binding post to pass through is formed in the bottom wall of the second mounting groove, and the second through hole is communicated with the second mounting groove and the battery assembling groove.

Further, the front end of the motor main body is provided with a first gasket, and the rear end of the motor main body is provided with a second gasket.

Furthermore, the rear end of the second shell is provided with a clamping leg, and the outer side wall of the clamping leg is provided with a clamping rib.

The utility model also provides an electric toothbrush, including foretell electric toothbrush core.

Compared with the prior art, the utility model discloses beneficial effect that can realize: the first shell and the second shell are detachably connected by the buckle piece and the hooking part without being fixed by screws; the circuit board is arranged on the side walls of the first shell and the second shell, and the circuit board assembly area extends from the side wall of the first shell to the side wall of the second shell, so that the circuit board is directly fixed on the first shell and the second shell on one hand, and the circuit board plays a role in connecting the first shell and the second shell on the other hand, and the connection relation between the first shell and the second shell is further enhanced; the motor, the battery and the circuit board are directly integrated on the first shell and the second shell to form the machine core, additional components such as a main support, a battery cover and a motor cover are not needed, the machine core is compact in structure and simple in assembly process, parts are saved, cost is reduced, and productivity is improved.

The utility model discloses in, can also make up each other between the above-mentioned each technical scheme to realize more preferred combination scheme. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention, wherein like reference numerals are used to designate like parts throughout the drawings.

FIG. 1 is an exploded schematic view of an embodiment of a powered toothbrush cartridge;

FIG. 2 is a perspective view of a first housing provided in accordance with an embodiment;

FIG. 3 is a front view of a first housing provided in accordance with an embodiment;

FIG. 4 is a top view of a first housing according to an embodiment;

FIG. 5 is a bottom view of the first housing according to an embodiment;

FIG. 6 is a left side view of the first housing provided in accordance with an embodiment;

FIG. 7 is a right side view of the first housing provided in accordance with an embodiment;

FIG. 8 is a perspective view of a second housing provided in accordance with an embodiment;

FIG. 9 is a front view of a second housing provided in accordance with an embodiment;

FIG. 10 is a top view of a second housing according to an embodiment;

FIG. 11 is a bottom view of the second housing according to an embodiment;

FIG. 12 is a left side view of a second housing provided in accordance with an embodiment;

FIG. 13 is a right side view of a second housing provided in accordance with an embodiment;

figure 14 is a partial schematic view of an embodiment providing a powered toothbrush cartridge;

FIG. 15 is a cross-sectional view of the powered toothbrush provided in accordance with the preferred embodiment without the head;

FIG. 16 is an exploded view of the powered toothbrush provided in accordance with the preferred embodiment without the brushhead;

FIG. 17 is a partial cross-sectional view of the embodiment providing a powered toothbrush without a brushhead;

fig. 18 is a schematic structural diagram of an electric toothbrush cartridge, a rear cover and a sealing sleeve according to an embodiment.

Reference numerals:

1-a first housing; 11-a fastener; 111-bumps; 112-a groove; 12-a first via; 13-a first mounting groove; 14-assembly band; 15-a first assembly area; 151-limit snap-gauge; 16-a lug; 17- "U" shaped soft gum; 18-limiting convex strips; 2-a second housing; 21-a battery mounting groove; 211-positioning the convex plate; 212-rectangular mouth; 213-a chute; a second mounting groove 22; 23-hooking part; 231-a tongue; 232-hook groove; 24-a hollowed-out portion; 25-a second assembly area; 251-a wiring hole; 26-clamping legs; 261-clamping ribs; 262-a rib plate; 3-a motor; 31-an output shaft; 32-terminal post; 33-a motor body; 331-a first gasket; 332-a second gasket; 4-a battery; 5-a circuit board; 51-foam cotton; 52-a light emitting section; 53-lightproof foam; 6-brush handle; 61-a light-transmitting portion; 62-a card slot; 7-rear cover; 8-sealing ring.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of the invention, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the term "connected" should be interpreted broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection, which may be a mechanical connection, an electrical connection, which may be a direct connection, or an indirect connection via an intermediate medium. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The terms "top," "bottom," "above … …," "below," and "on … …" as used throughout the description are relative positions with respect to components of the device, such as the relative positions of the top and bottom substrates inside the device. It will be appreciated that the devices are multifunctional, regardless of their orientation in space.

The utility model discloses usual working face can be plane or curved surface, can incline, also can the level. For convenience of explanation, the embodiments of the present invention are placed on a horizontal plane and used on the horizontal plane, and thus "high and low" and "up and down" are defined.

Example one

The embodiment provides an electric toothbrush movement, as shown in fig. 1 to 14, comprising a first casing 1, a second casing 2, a motor 3, a battery 4 and a circuit board 5, wherein the first casing 1 is provided with a fastener 11 detachably connected with the second casing 2, and the second casing is provided with a hooking part 23 adapted to the fastener 11; the first shell 1 and the second shell 2 are matched to define a motor assembly cavity for mounting a motor 3; the side walls of the first housing 1 and the second housing 2 are provided with circuit board mounting areas for mounting the circuit board 5, and the circuit board mounting areas extend from the side wall of the first housing 1 to the side wall of the second housing 2; the second housing 2 is provided with a battery mounting groove 21 for mounting the battery 4.

Compared with the prior art, in the electric toothbrush core provided by the embodiment, the first shell 1 and the second shell 2 are detachably connected by the fastener 11 and the hooking part 23 without being fixed by screws; the circuit board 5 is mounted on the side walls of the first shell 1 and the second shell 2, and the circuit board mounting area extends from the side wall of the first shell 1 to the side wall of the second shell 2, so that the circuit board 5 is directly fixed on the first shell 1 and the second shell 2, and the circuit board 5 plays a role in connecting the first shell 1 and the second shell 2, and further the connection relationship between the first shell 1 and the second shell 2 is enhanced; the motor 3, the battery 4 and the circuit board 5 are directly integrated on the first shell 1 and the second shell 2 to form a machine core, additional components such as a main support, a battery cover and a motor cover are not needed, the machine core is compact in structure and simple in assembly process, parts are saved, cost is reduced, and productivity is improved.

The motor 3 includes an output shaft 31, a terminal 32, and a motor main body 33, the output shaft 31 is provided at a front end of the motor main body 33, the terminal 32 is provided at a rear end of the motor main body 33, and the motor 3 is connected to the battery 4 through the terminal 32. Specifically, the motor 3 includes two terminals 32.

The front end of the first casing 1 is provided with a first through hole 12 for the motor output shaft 31 to pass through, the rear end of the first casing 1 is provided with a first mounting groove 13 communicated with the first through hole 12, and after the output shaft 31 of the motor 3 passes through the first through hole 12, the front part of the motor main body 33 is mounted in the first mounting groove 13.

The second mounting groove 22 has been seted up to the front end of second casing 2, and the rear end of motor main part 33 is installed in second mounting groove 22, and after first casing 1 and second casing 2 assembled, first mounting groove 13 forms the motor assembly chamber jointly with second mounting groove 22, and motor main part 33 is injectd in first mounting groove 13 and second mounting groove 22 promptly.

The battery assembly groove 21 is located behind the second installation groove 22, a second through hole for the wiring column 32 to pass through is formed in the bottom wall of the second installation groove 22, the second through hole is communicated with the second installation groove 22 and the battery assembly groove 21, and the wiring column 32 of the motor 3 passes through the second through hole and is connected with the battery 4 located in the battery assembly groove 21. The number of the second through holes is the same as the number of the posts 32.

In this embodiment, most of the motor main body 33 is located in the first mounting groove 13, and a small part of the motor main body is located in the second mounting groove 22, specifically, the ratio of the length of the motor main body located in the first mounting groove 13 to the length of the motor main body located in the second mounting groove 22 is not less than 4:1 (including 4: 1). In this embodiment, the ratio of the length of the motor body in the first mounting groove 13 to the length of the motor body in the second mounting groove 22 is 6: 1.

The central axes of the first casing 1, the second casing 2 and the motor 3 are coincident with each other and are the central axis of the movement, and the central axis of the output shaft 31 is coincident with the central axis of the movement.

It should be noted that, the length in the present invention refers to the length in the direction of the central axis of the movement, and the width refers to the length in the direction perpendicular to the central axis of the movement.

In this embodiment, the first mounting groove 13 and the second mounting groove 22 are adapted to the motor main body 33.

The front end of the motor main body 33 is provided with a first gasket 331, the rear end of the motor main body 33 is provided with a second gasket 332, specifically, the first gasket 331 is arranged between the front end of the motor main body 33 and the groove wall of the first mounting groove 13, the second gasket 332 is arranged between the rear end of the motor main body 33 and the groove wall of the second mounting groove 22, the first gasket 331 is provided with a third through hole for the output shaft 31 to pass through, the second gasket 332 is provided with a fourth through hole for the wiring post 32 to pass through, and the number of the fourth through holes is the same as the number of the wiring posts 32. The first washer 331 and the second washer 332 have a vibration damping effect, so that the collision between the motor 3 and the first housing and the second housing during vibration can be effectively relieved, and the noise during operation can be reduced. After the first housing 1 is assembled with the second housing 2, the motor 3 abuts on the inner wall of the first housing 1 (i.e., the groove wall of the first mounting groove 13) by the first gasket 331 and abuts on the inner wall of the second housing 2 (i.e., the groove wall of the second mounting groove 22) by the second gasket 332. The first and

second washers

331 and 332 may be made of a silicone material, and the first and

second washers

331 and 332 may be interference-fitted between the motor 3 and the first and second housings.

The first shell 1 is provided with a buckling piece 11 detachably connected with the second shell 2, specifically, the buckling piece 11 is located on a side wall of the first shell 1, a tail end of the buckling piece 11 exceeds a rear end face of the first shell 1, a protrusion 111 facing a central axis of the first shell 1 is arranged at the tail end of the buckling piece 11, a groove 112 is arranged at a position, close to the protrusion 111, of the buckling piece 11, the groove 112 is located between the protrusion 111 and the rear end face of the first shell 1, and the central axis of the groove 112 facing the first shell 1 is arranged.

In order to ensure the stability of the fastening element 11, the length of the fastening element 11 connected to the side wall of the first housing 1 is not less than 2/3 of the total length of the fastening element 11, and in this embodiment, the ratio of the length of the fastening element 11 occupied by the groove 112 and the protrusion 111 to the total length of the fastening element 11 is 1: 5.

The second housing 2 is provided with a hooking portion 23 adapted to the fastener 11, the hooking portion 23 includes a protruding tongue 231 and a hooking groove 232 adjacent to the protruding tongue 231, the protruding tongue 231 is located at the front end of the side wall of the second housing 2, and the shape and size of the protruding tongue 231 are adapted to the groove 112 of the fastener 11; hook groove 232 is opened on the side wall of second housing 2 and located at the rear side of tongue 231, and protrusion 111 can be inserted into hook groove 232, in this embodiment, hook groove 232 is in the shape of an inverted "T", and includes a transverse groove and a vertical groove perpendicular to the transverse groove, the transverse groove is adjacent to tongue 231, and the width of the transverse groove is equal to the width of tongue 231 (the width of protrusion 111), and the width of the vertical groove is smaller than the width of the transverse groove. It should be noted that the length of the transverse groove is greater than the thickness of the protrusion 111 (i.e. the length of the protrusion 111), so as to facilitate the protrusion 111 to go in and out, so as to facilitate hooking and separation between the fastening element 11 and the hooking portion 23.

When the first housing 1 and the second housing 2 are assembled together, the protrusion 111 is inserted into the hook groove 232, the tongue 231 is located in the groove 112, and the first assembly groove 13 and the second assembly groove 22 together form a motor assembly cavity. Therefore, the first shell 1 and the second shell 2 are detachably connected through the matching of the buckle piece 11 and the hook of the hooking part 23.

In this embodiment, the hook groove 232 is communicated with the second mounting groove 22. In order to further reduce the vibration generated by the motor 3, the sidewall of the second housing 2 is provided with a hollow portion 24, the hollow portion 24 is communicated with the second mounting groove 22, and the hollow portion 24 is located in front of the battery mounting groove 21.

In order to enhance the assembling strength between the first casing 1 and the second casing 2, an assembling belt 14 is provided on the rear end surface of the first casing 1, the inner wall of the assembling belt 14 is flush with the side wall of the first mounting groove 12, and the thickness of the assembling belt 14 is smaller than that of the first casing 1, that is, the outer wall of the assembling belt 14 is perpendicularly connected with the rear end surface of the first casing 1. After the first housing 1 is assembled with the second housing 2, the assembly tape 14 can be inserted into the second mounting groove 22.

After the first housing 1 and the second housing 2 are assembled, most of the side walls of the first housing 1 and the second housing 2 are flush, that is, the side walls of other parts are flush except the side walls of the parts provided with the fastening part 11, the hooking part 23 and the like.

The side walls of the first and second housings 1 and 2 are provided with circuit board mounting areas for mounting the circuit boards 5, which extend from the side wall of the first housing 1 to the side wall of the second housing 2. Specifically, the side wall of the first housing 1 is provided with a first assembling area 15, the side wall of the second housing 2 is provided with a second assembling area 25, after the first housing 1 and the second housing 2 are assembled, the first assembling area 15 is flush with the second assembling area 25 to jointly form a circuit board assembling area, and the circuit board 5 is installed in the circuit board assembling area.

First assembly area 15 be equipped with spacing cardboard 151, spacing cardboard 151 is located 15 front end both sides in first assembly area, makes things convenient for circuit board 5 location installation. The second mounting region 25 is provided with a wiring hole 251, and the wiring hole 251 is communicated with the battery mounting groove 21 so as to connect the circuit board 5 with the battery 4 and the motor 3. In this embodiment, the second mounting region 25 is provided with two wire holes 251 located at the front and rear ends of the bottom of the battery mounting groove 21.

The circuit board 5 is installed in the circuit board assembling area through the mode of pasting, specifically, the circuit board 5 pastes on the circuit board assembling area through the bubble cotton 51, pastes the bubble cotton 51 on the circuit board assembling area earlier, pastes the circuit board 5 on the bubble cotton 51 again, slows down the influence of motor 3 vibration to circuit board 5 through the bubble cotton 51.

The circuit board 5 is provided with a light emitting part 52, and the light emitting part 52 is provided with a light shielding foam 53 fitted to the light emitting part.

It should be noted that the lengths of the circuit board 5, the foam 51 and the circuit board mounting area are the same, the width of the circuit board mounting area is not less than the width of the circuit board 5, and the shape of the foam 51 is the same as that of the circuit board 5.

In this embodiment, the first assembly region 15 and the fastening element 11 are disposed on the side wall of the first housing 1, the second assembly region 25 and the battery assembly groove 21 (and the hooking portion 23) are disposed on the side wall of the second housing 2, the first assembly region 15 and the second assembly region 25 are located on the same side, and the fastening element 11, the hooking portion 23, and the battery assembly groove 21 are located on the same side.

In order to facilitate the installation and the disassembly of the battery 4, the positioning convex plates 211 are arranged on the side wall of the second shell 2 and two sides of the battery assembling groove 21, the rectangular opening 212 communicated with the battery assembling groove 21 is formed in the side wall of the second shell 2, the rectangular opening 212 is positioned between the positioning convex plate 211 and the second assembling area 25, and the battery 4 is better fixed in the battery assembling groove 21 through the positioning convex plates 211 and the rectangular opening 212.

Slide groove portions are oppositely arranged on the side wall of the second shell 2 and the front end and the rear end of the battery assembling groove 21, a slide groove 213 is formed in the top of the slide groove portion, and the slide groove portions on the side walls of the first shell 1 and the second shell 2 are farthest away from the central axis of the movement. In this embodiment, the sliding groove portion, the locking member 11 and the hooking portion 23 are located at the same side, and are located right behind the hooking portion 23. The core plays the effect of fixed direction through spout portion, makes things convenient for the core to assemble to the toothbrush in to and avoid the core to take place to slide in the toothbrush and lead to the offset.

The rear end of second casing 2 is equipped with card leg 26, and the lateral wall of card leg 26 is connected with the lateral wall of second casing 2, and the lateral wall of card leg 26 is equipped with card muscle 261, card leg 26 is elastic construction, through card leg 26 with core demountable installation in the brush holder of toothbrush. In order to ensure the stable strength of the clamping leg 26, a rib plate 262 is arranged between the inner side wall of the clamping leg 26 and the rear end face of the second shell 2, the front end face of the rib plate 262 is vertically connected with the rear end face of the second shell 2, the outer side wall of the rib plate 262 is connected with the inner side wall of the clamping leg 26, the inner side wall of the rib plate 262 is in an inward hook shape, on one hand, the rib plate 262, the clamping leg 26 and the rear end face of the second shell 2 form a triangular support structure to ensure the stability of the clamping leg 26, and on the other hand, the inner side wall of the rib plate 262 is in an inward hook shape to ensure the elasticity of the inward pressure of the clamping leg 26. In this embodiment, two clamping legs 26 are oppositely disposed at the rear end of the second housing 2 and located at two sides of the circuit board mounting area.

The side wall of the first shell 1 is provided with a lug 16, the lug 16 is positioned in front of the fastener 11 and is closely adjacent to the fastener 11, the outer sides of the lug 16 and the fastener 11 are provided with U-shaped soft glue 17, and the U-shaped soft glue 17 has the effect of slowing down the vibration of the motor 3.

In this embodiment, the first casing 1 is stepped and includes a first step and a second step, the first step is vertically connected to the second step, the first step is in a revolving shape and located in front of the second step, and the width of the first step is smaller than that of the second step. First through-hole 12 is seted up at first step, and first mounting groove 13 is seted up at second step, and buckle 11 is located the lateral wall of second step, and first assembly area 15 and spacing cardboard 151 are located the second step to the shaft shoulder department of fixed motor better.

Furthermore, a plurality of limiting convex strips 18 are arranged on the side wall of the first step part, the limiting convex strips 18 are uniformly distributed on the first step part, the tail ends of the limiting convex strips 18 are vertically connected with the front end surface of the second step part, the length of the limiting convex strips 18 is smaller than that of the first step part, and namely the front ends of the limiting convex strips 18 cannot extend to the front end of the side wall of the first step part. Specifically, the ratio of the length of the restriction bead 18 to the length of the first step is less than 1: 5.

Example two

The embodiment provides an electric toothbrush, which comprises a movement, a brush head, a brush handle 6 and a rear cover 7 provided in the first embodiment as shown in figures 15 to 18.

The movement is detachably arranged in a movement assembly cavity defined by the matching of the brush handle 6 and the rear cover 7. Specifically, the movement is installed in the brush holder 6, and the rear cover 7 is detachably connected with the rear end of the brush holder 6.

The front end of the brush holder 6 is provided with a fifth through hole for the output shaft 31 to penetrate out, and the brush head is connected with the output shaft 31 penetrating out from the brush holder, so that the motor 3 drives the brush head to vibrate through the output shaft 31.

Light-transmitting part 61 is provided on the side wall of brush holder 6, light-transmitting part 61 corresponds to light-emitting part 52, and the light from light-emitting part 52 is transmitted through light-transmitting part 61.

Be equipped with the direction muscle with spout 213 looks adaptation of spout portion on the inner wall of brush holder 6, when assembling the core in brush holder 6, assemble spout 213 to the direction muscle on, the core slowly gets into in the brush holder 6 along with spout 213 slides on the direction muscle. It should be noted that the length of the guide rib is not less than the length of the second housing 2, and preferably, the length of the guide rib is equal to the distance from the front end surface of the first housing 1 to the rear end surface of the second housing 2.

A clamping groove 62 matched with the clamping rib 261 is formed in the inner wall of the brush handle 6, and when the machine core is assembled in the brush handle 6, the clamping rib 261 is embedded into the clamping groove 62; when the movement is detached from the brush holder 6, the locking legs 26 are pressed inward, so that the locking ribs 261 are withdrawn from the locking grooves 62, and then the movement is taken out.

Electric toothbrush still includes

seal cover

8, and 8 cladding of seal cover are at the front end of first casing 1, and it is spacing to it through injecing sand grip 18, and seal cover 8 sets up the sixth through-hole that supplies output shaft 31 to pass, and adopts rotary seal between output shaft 31 and the seal cover 8.

Be equipped with sealing washer 8 between the front end of first casing 1 and the core assembly chamber, first casing 1 passes through sealing washer 8 butt on the antetheca of brush holder 6 promptly, and sealing washer 8 plays waterproof effect to the core.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims

1. An electric toothbrush movement is characterized by comprising a first shell, a second shell, a motor, a battery and a circuit board,

2. The electric toothbrush cartridge according to claim 1, wherein the latch is located on a side wall of the first housing, a rear end of the latch protrudes from a rear end surface of the first housing, and a rear end of the latch is provided with a protrusion and a groove located on a front side of the protrusion.

3. The electric toothbrush core according to claim 2, wherein the hooking portion is located on a side wall of the second housing, the hooking portion includes a tongue adapted to the groove and a hooking groove for inserting and pulling the protrusion, and the hooking groove is located on a rear side of the tongue.

4. The electric toothbrush cartridge of claim 1, wherein the motor includes an output shaft, a terminal, and a motor body, the output shaft providing a front end of the motor body, the terminal being provided at a rear end of the motor body, the motor being connected to the battery through the terminal.

5. The electric toothbrush core according to claim 4, wherein the front end of the first housing is provided with a first through hole for the output shaft to pass through, and the rear end of the first housing is provided with a first mounting groove communicated with the first through hole;

the front end of the second shell is provided with a second mounting groove;

6. The electric toothbrush cartridge of claim 5, wherein the battery mounting slot is located rearward of the second mounting slot.

7. The electric toothbrush core according to claim 6, wherein a second through hole for the terminal to pass through is formed in the bottom wall of the second mounting groove, and the second through hole communicates the second mounting groove and the battery assembling groove.

8. The electric toothbrush cartridge of claim 4, wherein the front end of the motor body is provided with a first washer and the rear end of the motor body is provided with a second washer.

9. The electric toothbrush core according to claim 1, wherein a leg is provided at the rear end of the second housing, and a rib is provided on the outer side wall of the leg.

10. An electric toothbrush comprising an electric toothbrush cartridge according to any one of claims 1 to 9.