CN212816618U

CN212816618U - Electric toothbrush capable of reducing vibration of handle

Info

Publication number: CN212816618U
Application number: CN202020340548.1U
Authority: CN
Inventors: 喻金明; 叶志文; 庄法中
Original assignee: Hangzhou Lexiu Electronic Technology Co ltd
Current assignee: Hangzhou Lexiu Electronic Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-03-30
Anticipated expiration: 2030-03-18

Abstract

The utility model provides an alleviate electric toothbrush of handle vibrations, including handle, power pack and the brush head of being connected with the handle, electric toothbrush is still including the driving medium of connecting handle and brush head, the first cover of brush is located the outside of driving medium, power pack locates inside the driving medium, the driving medium is including having elastic flexible portion, flexible portion separates the driving medium for first ebonite portion and the second ebonite portion of each other contactless, has solved among the current electric toothbrush shock-absorbing structure and has set up more and dispersion, problem that the shock attenuation is inefficient.

Description

Electric toothbrush capable of reducing vibration of handle

Technical Field

The utility model relates to an oral cleaning device field, concretely relates to alleviate electric toothbrush of handle vibrations.

Background

The toothbrush is a necessary product in people's life, is used for clearing tiny bacteria, tartar and tiny impurities between teeth, can prevent tooth diseases, and the electric toothbrush drives the brush head to vibrate at high frequency through the motor, can decompose toothpaste into tiny foam in the twinkling of an eye, makes toothpaste can be abundant get into between the teeth gap and clean the tooth, has greatly improved the efficiency of brushing teeth, receives more and more the young person's taste.

However, the electric toothbrush has a problem that the brush head is usually strongly vibrated and the vibration can be transmitted from the brush head to the handle, which is difficult to solve because the brush head needs to be driven by the motor, moreover, the vibration is easy to generate stronger noise, so that the experience of a user is poorer when the electric toothbrush is used, the vibration reduction of the existing electric toothbrush is generally to arrange soft glue at the joint of the brush head and the handle or/and around the motor, to reduce the vibration, for example, the Chinese utility model patent CN205163294U discloses that the bottom and the outside of the brush head shaft lever and the bottom of the motor are provided with a vibration damping ring or a vibration damping pad to reduce the vibration of the handle, and because its shock-absorbing structure is too much for its assembly process step is many, has increased production management cost, and the uniformity after the assembly also can receive the influence, and the shock attenuation efficiency is lower, experiences and feels the variation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model discloses mainly solve not enough among the prior art, relate to an electric toothbrush who alleviates handle vibrations, solved among the current electric toothbrush shock-absorbing structure and set up more and dispersion for electric toothbrush uniformity after the assembly is relatively poor, thereby the problem of shock attenuation inefficiency.

(II) technical scheme

The utility model provides an alleviate electric toothbrush of handle vibrations, including handle, power pack and the brush head of being connected with the handle, electric toothbrush is still including the driving medium of connecting handle and brush head, the first cover of brush is located the outside of driving medium, power pack locates inside the driving medium, the driving medium is including having elastic flexible portion, flexible portion separates the driving medium for first ebonite portion and the second ebonite portion that do not contact each other.

The benefit is, be provided with the clearance between the first ebonite portion of flexibility portion and the ebonite portion of second for when vibrations are transmitted to first ebonite portion, through the flexibility portion shock attenuation between first ebonite portion and the second ebonite portion, make the vibrations of transmitting to the second ebonite portion alleviate, and then make the vibrations of handle alleviate, make user's the experience of brushing teeth better, set up the flexibility portion shock attenuation simultaneously between first ebonite portion and second ebonite portion, make shock-absorbing structure few, and convenient for assembly.

Preferably, the gap between the first hard rubber part and the second hard rubber part is S, wherein S is more than or equal to 0.5mm and less than or equal to 5 mm.

The brush head has the advantages that when S is smaller than 0.5mm, the gap between the first hard rubber part and the second hard rubber part is too small, when the first hard rubber part vibrates, friction is easily generated between the first hard rubber part and the second hard rubber part, the hard rubber part is easily consumed, the vibration amplitude of the brush head is small, and the using effect is influenced; when the S is larger than 5mm, the gap between the first hard rubber part and the second hard rubber part is too large, and when the first hard rubber part vibrates, the vibration amplitude of the first hard rubber part is too large, so that the control is not facilitated, and the tooth brushing experience is influenced; s is more than or equal to 0.5mm and less than or equal to 5mm, and the clearance range with optimal vibration amplitude and optimal use effect between the first hard rubber part and the second hard rubber part is

Preferably, the height of the flexible part is H, wherein H is more than or equal to 5mm and less than or equal to 15 mm.

The electric toothbrush has the advantages that when the H is less than 5mm, the height of the flexible part is smaller, so that the gap between the first hard rubber part and the second hard rubber part is smaller, otherwise, the first hard rubber part and the flexible part are easy to fall off, and the use experience of the electric toothbrush is influenced; when H is larger than 15mm, the flexible part is too large, so that the electric toothbrush is large in size and inconvenient to use, and the power output end of the power unit needs to be arranged in the first hard rubber part; h is more than or equal to 5mm and less than or equal to 15mm, and the height of the flexible part is preferably the height which does not affect the vibration efficiency of the electric toothbrush and can reasonably install the motor.

Preferably, the transmission part further comprises a separator for separating the handle and the brush head, and the distance between the flexible part and the separator is D, wherein D is more than or equal to 5mm and less than or equal to 20 mm.

When D is less than 5mm, the distance between the flexible part and the separating part is too small, so that the vibration amplitude of the transmission part in the vibration process is too large, and the transmission rod is not favorable for stably transmitting the vibration to the brush head; when D is larger than 20mm, the length of the brush head part is too long, so that the whole length of the toothbrush is longer, and the use experience is influenced; when D is more than or equal to 5mm and less than or equal to 20mm, the distance range is the optimal distance range which ensures that the transmission part can stably transmit vibration and the length of the brush head part is suitable.

Preferably, the hardness range of the flexible part is 50 HA-70 HA.

The transmission mechanism HAs the advantages that the hardness of the flexible part directly influences the vibration transmission of the transmission member, and when the flexible part is too hard, namely the hardness of the flexible part is more than 70HA, the power unit is difficult to drive the transmission member to vibrate, so that the vibration transmission is influenced; when the flexible portion is too soft, that is, the hardness of the flexible portion is less than 50HA, the vibration amplitude of the transmission member is too large, so that the transmission rod is not easy to stably transmit vibration, and the transmission rod easily collides with the inner wall of the brush head to generate noise, thereby influencing the experience of a user.

Preferably, the drive member has a tendency to retract towards the brush head.

The advantages that on one hand, the structure of the transmission part is compact, and the vibration transmission of the transmission part is concentrated; on the other hand, the appearance structure of the brush head part is more beautiful.

Preferably, the flexible portion is embedded in the transmission member.

The advantage is, the intensity of reinforcing driving medium avoids the driving medium to split between flexible portion and the ebonite portion in vibrations process.

Preferably, the thickness of the flexible portion is not less than the thickness of the transmission member.

The flexible part has the advantages that on one hand, when the thickness of the flexible part is larger than or equal to that of the transmission part, the strength of the soft rubber part can be enhanced, and the flexible part is prevented from being broken or falling off from the transmission part in the vibration process of the transmission part; on the other hand, the part of the flexible part with the thickness higher than that of the transmission part can play a good role in damping and buffering.

Preferably, the flexible portion and the transmission member are integrally formed.

The advantages are that on one hand, the mould is saved, and the cost is reduced; on the other hand, no gap is left between the flexible part and the transmission part, so that the strength and the sealing property of the transmission part are enhanced.

Preferably, the power output end of the power unit is arranged in the first hard glue part far away from the handle.

The benefit is for when power unit only drove the vibrations of first ebonite portion, vibrations can be isolated in the brush head through the flexible portion shock attenuation between first ebonite portion and the second ebonite portion, reduce vibrations and transmit to the handle, improve user's use and experience.

Drawings

FIG. 1 is a perspective view of an electric toothbrush;

FIG. 2 is a schematic axial cross-sectional view of an electric toothbrush;

FIG. 3 is a schematic perspective view of the transmission member;

FIG. 4 is a schematic axial cross-sectional view of a transmission member;

FIG. 5 is a schematic perspective view of the first hard adhesive portion and the second hard adhesive portion;

FIG. 6 is a schematic perspective view of the flexible portion and the elastic portion;

FIG. 7 is a perspective view of the flexible portion;

FIG. 8 is an axial cross-sectional view of the flexible portion;

FIG. 9 is a perspective view of the elastic portion;

FIG. 10 is an axial cross-sectional view of the spring;

FIG. 11 is an enlarged view of the portion C of FIG. 2;

wherein, 100, the handle; 200. a brush head; 300. a transmission member; 311. a first hard rubber part; 312. a second hard rubber part; 320. a flexible portion; 330. an elastic portion; 331. a first flexible mat; 332. a third flexible pad; 333. a second flexible mat; 334. a soft rubber cushion; 340. a separator; 400. a key assembly; 410. an operation section; 500. and a power unit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the embodiments of the present invention and the accompanying drawings, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 4, the utility model provides a handle 100 anti-seepage electric toothbrush, which comprises a handle 100, a power unit 500 and a brush head 200 connected with the handle 100, wherein the brush head 200 is used for directly contacting with teeth, the power unit 500 is used for providing the power for vibrating the electric toothbrush, the power unit 500 comprises a motor or a device capable of outputting vibrating power, such as a motor, etc., the handle 100 is used for being held by a user, the electric toothbrush further comprises a transmission member 300 for connecting the handle 100 and the brush head 200, the bottom of the specific transmission member 300 is connected with the end portion of the handle 100 close to the brush head 200, the connection mode can adopt a buckle insertion connection or a thread connection, the outer wall sleeve of the transmission member 300 is provided with the brush head 200, wherein the transmission member 300 is used for transmitting the vibrating force output by the power unit 500 to the brush head 200 portion, the brush head 200 is sleeved outside the transmission member, the driving medium 300 is including having elastic flexible portion 320, and flexible portion 320 is used for reducing the vibrations of brush head 200, flexible portion 320 separates driving medium 300 for first ebonite portion 311 and the ebonite portion 312 of each other contactless, and the one end that driving medium 300 is close to brush head 200 belongs to first ebonite portion 311, and the one end that driving medium 300 is close to handle 100 belongs to second ebonite portion 312, sets up to the structure of each other contactless between first ebonite portion 311 and the second ebonite portion 312 and is the vibrations of first ebonite portion 311 in order to better messenger, drives the vibrations of brush head 200 that the outside cover of first ebonite portion 311 was established, has improved electric toothbrush's vibrations efficiency.

As shown in fig. 4 and 5, a gap between the first hard rubber part 311 and the second hard rubber part 312 is S, wherein S is greater than or equal to 0.5mm and less than or equal to 5mm, because the gap between the first hard rubber part 311 and the second hard rubber part 312 directly affects the vibration effect of the brush head 200, specifically, when S is less than 0.5mm, the gap between the first hard rubber part 311 and the second hard rubber part 312 is too small, when the first hard rubber part 311 vibrates, friction is easily generated between the first hard rubber part 311 and the second hard rubber part 312, the hard rubber part is easily consumed, and the vibration amplitude of the brush head 200 is also caused to be small, thereby affecting the use effect; when the S is larger than 5mm, the gap between the first hard rubber part 311 and the second hard rubber part 312 is too large, and when the first hard rubber part 311 vibrates, the vibration amplitude is too large, so that the control is not facilitated, and the tooth brushing experience is influenced; and S is greater than or equal to 0.5mm and less than or equal to 5mm, which is a gap range with the optimal vibration amplitude and the optimal use effect between the first hard rubber part 311 and the second hard rubber part 312, specifically, S =1mm, S =2.5mm, and S =4 mm. I prefer S =2.5mm for our version, which is the gap where the first hard glue portion 311 makes the best brushing experience during shaking.

As shown in fig. 4, the height of the flexible portion 320 is H, wherein H is greater than or equal to 5mm and less than or equal to 15mm, and the height of the flexible portion 320 has a certain influence on the vibration efficiency of the transmission member 300, specifically, when H is less than 5mm, the height of the flexible portion 320 is smaller, which results in a smaller gap between the first hard glue portion 311 and the second hard glue portion 312, otherwise, the first hard glue portion 311 and the flexible portion 320 are easy to fall off, and the use experience of the electric toothbrush is influenced; when H is greater than 15mm, the height of the flexible portion 320 is too large, so that the electric toothbrush has a large volume and is inconvenient to use, and the vibration amplitude of the first hard rubber portion 311 is large, and the power output end of the power unit 500 needs to be arranged inside the first hard rubber portion 311, and when the height of the flexible portion 320 is too large, the power output end of the power unit 500 is too long, which is not beneficial to the installation and power transmission of the power unit 500; and 5mm ≤ H ≤ 15mm is for can not influence the preferred flexible portion 320 height that electric toothbrush shakes efficiency and can rationally install the motor, specifically, H =5mm, H =9mm, H =15mm, the utility model discloses preferred flexible portion 320 height is H =9mm, and this height is for the preferred height that installs the motor and do not influence electric toothbrush vibrations for being convenient for.

As shown in fig. 4, the transmission member 300 further includes a separating member 340 separating the handle 100 and the brush head 200, a distance D between the flexible portion 320 and the separating member 340 is set to be greater than or equal to 5mm and less than or equal to 20mm, and specifically, the distance between the flexible portion 320 and the separating member 340 directly affects the vibration efficiency of the transmission member 300. When D is less than 5mm, the distance between the flexible part 320 and the separating element 340 is too small, so that the vibration amplitude of the transmission element 300 in the vibration process is too large, and the transmission element 300 is not favorable for stably transmitting the vibration to the brush head 200; when D is larger than 20mm, the length of the brush head 200 is too long, so that the whole length of the toothbrush is longer, and the use experience is influenced; when D is less than or equal to 5mm and less than or equal to 20mm, the distance range is a preferable distance range which ensures that the transmission member 300 can stably transmit vibration and the length of the brush head 200 part is appropriate, specifically, D =8mm, D =10mm, D =15mm, and preferably D =10mm in the scheme of my department.

Wherein, the hardness scope of flexible portion 320 is 50HA ~70HA, because the hardness of flexible portion 320 directly influences the vibrations transmission of driving medium 300, when flexible portion 320 is too hard, when flexible portion 320 hardness is greater than 70HA promptly, power unit 500 hardly drives driving medium 300 and makes vibrations, influences the transmission of vibrations, when flexible portion 320 is too soft, when flexible portion 320 hardness is less than 50HA promptly, then the vibration range of driving medium 300 is too big, the noise easily produces, and the transmission of difficult stable control vibrations, influence user experience, the utility model discloses preferred flexible portion 320's hardness is 60 HA.

As shown in fig. 7 to 8, the transmission member 300 has a tendency to contract toward the brush head 200, so that the transmission member 300 has a relatively compact structure and a relatively concentrated vibration power; on the other hand, the appearance structure of the brush head 200 is more beautiful, specifically, the axial section of the transmission member 300 is trapezoidal, and it can be understood that the axial section of the transmission member 300 may also be trapezoidal like a curve, in which the upper bottom surface is smaller than the lower bottom surface, and the side surface is curved.

As shown in fig. 2 and 11, the flexible portion 320 is embedded in the transmission member 300, specifically, because the transmission portion is composed of the first hard rubber portion 311, the flexible portion 320 and the second hard rubber portion 312, the first hard rubber portion 311 is embedded in one end of the flexible portion 320, the other end of the flexible portion 320 is embedded in the second hard rubber portion 312, the connection strength between the flexible portion 320 and the transmission member 300 can be effectively improved by embedding the flexible portion 320 in the transmission member 300, the first hard rubber portion 311 is prevented from separating from the flexible portion 320 when vibrating, the transmission member 300 is prevented from being broken, and the use is prevented from being affected,

as shown in fig. 4, the thickness of the flexible portion 320 is not less than the thickness of the transmission member 300, and specifically, when the thickness of the flexible portion 320 is greater than or equal to the thickness of the transmission member 300, the strength of the flexible portion 320 can be enhanced, so as to prevent the flexible portion 320 from breaking or falling off from the transmission member 300 during the vibration of the transmission member 300; on the other hand, the portion of flexible portion 320 having a thickness greater than that of actuator 300 can provide a good shock absorbing and cushioning effect.

Wherein, the flexible portion 320 and the transmission member 300 are integrally formed, because the flexible portion 320 and the transmission member 300 are integrally formed as a single piece, the gap between the flexible portion 320 and the transmission member 300 can be eliminated, on one hand, the sealing and waterproof functions are achieved, on the other hand, the flexible portion 320 and the transmission member 300 are more tightly connected and are not easy to crack,

the forming process is as follows: the first hard rubber part 311 and the second hard rubber part 312 are molded in a pair of molds, then the first hard rubber part 311 and the second hard rubber part 312 are molded after the hard rubber is cooled and shaped, and the flexible part 320 is molded in a gap between the first hard rubber part 311 and the second hard rubber part 312.

As shown in fig. 2, the power output end of the power unit 500 is disposed inside the first hard rubber portion 311, specifically, the power unit 500 needs to output vibration to drive the first hard rubber portion 311 to vibrate, so the power output end of the power unit 500 needs to be disposed in the first hard rubber portion 311, and the host of the power unit 500 can be disposed at any position of the first hard rubber portion 311, the flexible portion 320, or the second hard rubber portion 312, so that the vibration position is defined in the first hard rubber portion 311, and the flexible portion 320 between the first hard rubber portion 311 and the second hard rubber portion 312 can effectively isolate the vibration of the first hard rubber portion 311, thereby preventing the vibration from being transmitted to the handle 100.

As shown in fig. 1 and 2, the electric toothbrush further includes a key assembly 400 for controlling the working state of the electric toothbrush, the key assembly 400 is installed in the handle 100, the key assembly 400 includes an operation portion 410, the operation portion 410 is embedded in the outer sidewall of the handle 100, the surface of the operation portion 410 interacting with the user is exposed on the outer sidewall of the handle 100, the handle 100 is sleeved on the outer sidewall of the transmission member 300, that is, the transmission member 300 is installed inside the handle 100, the bottom of the transmission member 300 is connected with one end of the handle 100 close to the brush head 200, specifically, the installation manner of the transmission member 300 is not limited to plugging, screwing and buckling connection, the transmission member 300 includes an elastic portion 330 for waterproofing, the elastic portion 330 and the transmission member 300 are integrally formed by molding, so that there is no gap between the transmission members 300, that is the elastic portion 330 and the transmission member 300 are integrally formed, can effectively prevent water.

As shown in fig. 3, 6, 9 and 10, the elastic portion 330 includes a first flexible pad 331, the first flexible pad 331 is wound around the transmission member 300 for one turn, so that the first flexible pad 331 is shaped like a cylinder, and when the first flexible pad 331 is engaged with the handle 100, the first flexible pad 331 is in interference fit with the inner side wall of the handle 100, so that on one hand, the sealing and waterproof effects are achieved, and on the other hand, the vibration of the transmission member 300 colliding with the handle 100 in the vibration process can be reduced.

The axial cross-sectional shape of the first flexible pad 331 is not limited in this example, and the axial cross-section may be triangular, trapezoidal, quadrilateral, hemispherical, etc., as long as the first flexible pad 331 is capable of interference-fitting with the handle 100 to prevent water, and the first flexible pad 331 is preferably quadrilateral in this example, so that the first flexible pad 331 effectively contacts with the transmission member 300 tightly to prevent water.

As shown in fig. 3, 6, 9 and 10, the elastic portion 330 includes a second flexible pad 333, the second flexible pad 333 is disposed at the tail end of the transmission member 300, the tail portion of the specific transmission member 300 is the end away from the brush head 200, so as to further enhance the waterproof property of the transmission member 300, when the water flow that fails in the first flexible pad 331 permeates into the handle 100, the water may enter between the transmission member 300 and the handle 100, and the second flexible pad 333 is disposed to effectively prevent the water from entering the electric component portion of the handle 100 through the transmission member 300.

As shown in fig. 3, 6, 9 and 10, the elastic portion 330 further includes a third flexible pad 332 disposed between the first flexible pad 331 and the second flexible pad 333, and specifically, the third flexible pad 332 is disposed between the key assembly 400 and the first flexible pad 331, so that the third flexible pad 332 is used for performing third waterproof on the transmission member 300 and the handle 100, and preventing water from damaging electrical components in the handle 100 when the water enters a portion of the handle 100 having the key assembly 400 after the first flexible pad 331 fails. The three layers of flexible pads are arranged, so that the waterproofness of the electric toothbrush can be better improved.

It is understood that a third flexible pad 332 may be disposed between key assembly 400 and second flexible pad 333, when first flexible pad 331 fails, water enters transmission member 300 and handle 100, and third flexible pad 332 is disposed to prevent water from flowing out between transmission member 300 and handle 100 and entering deeper into handle 100 to damage electrical components.

As shown in fig. 3, 6, 9 and 10, the elastic portion 330 includes a soft rubber pad 334 extending along the axial direction on the side wall of the transmission member 300, the soft rubber pad 334 clings to the inner side wall of the operation portion 410, the soft rubber pad 334 is disposed between the second flexible pad 333 and the third flexible pad 332, specifically, the structure of the soft rubber pad 334 extends along the axial direction on the side wall of the transmission member 300, in this example, the soft rubber pad 334 is not disposed in a cylindrical shape, because when the soft rubber pad 334 is disposed in a cylindrical shape, it occupies a part of the hard rubber position of the transmission member 300, so that the hard rubber part of the transmission member 300 is thinner, resulting in lower strength of the transmission member 300.

As shown in fig. 4, the width of the first flexible pad 331 is a, wherein a is greater than or equal to 1mm and less than or equal to 10mm, the width of the first flexible pad 331 directly affects the waterproof and damping performance of the handle 100, and when the width of the first flexible pad 331 is small, i.e., a is less than 1mm, water easily permeates into the handle 100, which causes damage to electrical components in the handle 100; when the height of the first flexible pad 331 is too large, that is, a is greater than 10mm, the interference fit between the first flexible pad 331 and the handle 100 makes the handle 100 and the transmission member 300 not easy to mount, and 1mm or more and 10mm or less is a preferred width ratio of the handle 100 and the transmission member 300 which is easy to mount and has a good waterproof effect, specifically, a =3mm, a =5mm, a =8mm, and a =3mm is preferred in this embodiment.

In the elastic part 330 and the transmission member 300, the elastic part 330 and the transmission member 300 are embedded together, so that on one hand, the connection strength between the elastic part 330 and the transmission member 320 is enhanced, the elastic part 330 and the transmission member 320 cannot easily fall off, on the other hand, the sealing performance between the transmission member 300 and the elastic part 330 is improved, and the transmission member 300 is prevented from water leakage.

Wherein, as shown in fig. 9 and 10, the elastic part 330 is an integrated structure, that is, the elastic part is an integral part, so that the number of dies is reduced in the processing process, and the cost is reduced, specifically, the soft rubber pad 334, the first flexible pad 331, the second flexible pad 333 and the third flexible pad 332 are integrated, so that the assembly between the elastic parts 330 is reduced, the assembly gap is reduced, and the waterproof performance is improved.

It is understood that soft rubber pad 334 may be integrally formed with any one or two of first flexible pad 331, second flexible pad 333, and third flexible pad 332, with the remaining portion being separately assembled with driving member 300.

It is understood that any two of first flexible pad 331, second flexible pad 333, and third flexible pad 332 are integrally formed, and the remaining portions are separately assembled with driving member 300.

It is understood that the soft rubber pad 334, the first flexible pad 331, the second flexible pad 333 and the third flexible pad 332 are separately assembled with the driving member 300.

As shown in fig. 6, the upper portion of the partition 340 is provided with a flexible portion 320, and the elastic portion 330 and the flexible portion 320 are in an integrally formed structure, that is, the flexible portion 320 and the elastic portion 330 are an integral piece, so that when the integral piece is formed through a mold, a pouring opening of the mold is reduced, the mold is simplified, and the structure is more compact and stable.

As shown in fig. 3, 5 and 6, the integral member formed by the flexible portion 320 and the elastic portion 330, the first hard rubber portion 311 and the second hard rubber portion 312 are integrally formed as an integral structural member, i.e., the transmission member 300, so that on one hand, the mold is saved, the cost is reduced, and on the other hand, the overall waterproof performance and the shock absorption performance of the transmission member 300 are excellent.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the technical scope of the present invention are included in the protection scope of the present invention.

Claims

1. The utility model provides an alleviate electric toothbrush of handle vibrations, includes handle, power pack and the brush head of being connected with the handle, a serial communication port, electric toothbrush is still including the driving medium of connecting handle and brush head, the first cover of brush is located the outside of driving medium, power pack locates inside the driving medium, the driving medium is including having elastic flexible portion, flexible portion separates the driving medium for first ebonite portion and the second ebonite portion of mutual contactless.

2. The powered toothbrush for reducing vibration of the handle as recited in claim 1, wherein the gap between the first and second hard glue portions is S, wherein S is 0.5mm ≦ 5 mm.

3. The electric toothbrush for reducing vibration of a handle as claimed in claim 1, wherein the height of the flexible portion is H, wherein H is 5mm or less and 15mm or less.

4. The powered toothbrush as defined in claim 1, wherein the transmission further comprises a spacer separating the handle and the head, the flexible portion being spaced from the spacer by a distance D, wherein D is 5mm or less and 20mm or less.

5. The electric toothbrush for reducing vibration of a handle according to claim 1, wherein the flexible portion HAs a hardness ranging from 50HA to 70 HA.

6. The powered toothbrush for reducing vibration in a handle as set forth in claim 1, wherein the drive member has a tendency to retract toward the head.

7. The powered toothbrush as defined in claim 1, wherein the flexible portion is embedded in the transmission member.

8. The powered toothbrush for reducing vibrations in a handle as set forth in claim 1, wherein the flexible portion has a thickness not less than a thickness of the drive member.

9. The powered toothbrush as defined in any one of claims 1-8, wherein the flexible portion and the drive member are integrally formed.

10. The powered toothbrush as defined in claim 1, wherein the power output of the power unit is disposed within the first hard gel portion remote from the handle.