CN211156422U - Vibration device for electric toothbrush - Google Patents

Abstract

The utility model provides a vibrator for electric toothbrush, including motor, coupling assembling and eccentric wheel, coupling assembling is connected eccentric wheel and motor, still includes first shell, and the motor is located the outside of first shell, and first shell is equipped with first cavity, and first cavity bottom is equipped with first recess, and eccentric wheel one end is equipped with first arch, in the first recess of first protruding embedding, the coincidence of the central line of first bellied central line and first recess, the coincidence of the central line and the first bellied central line of motor. Through above-mentioned scheme, the eccentric wheel passes through coupling assembling and realizes the coaxial coupling with the motor, utilizes the eccentric wheel to rotate and produces vibrations, utilizes first shell to fix the eccentric wheel simultaneously, and the eccentric wheel can realize stable rotation, and the range of vibrations remains stable. Meanwhile, the connecting assembly can keep the motor away from the brush head, the motor is effectively guaranteed to be damaged by water vapor, and the brush head is connected with the first shell, so that transmission of the vibrating device to the brush head is achieved.

Description

Vibration device for electric toothbrush

Technical Field

The utility model relates to an electric toothbrush field especially relates to a vibrator for electric toothbrush.

Background

Electric toothbrushes come in two general categories: rotation and vibration. The principle of the rotary toothbrush is simple, namely the motor drives the circular brush head to rotate, the friction effect is enhanced while the ordinary tooth brushing action is carried out, the rotary toothbrush is high in noise, the tooth surface is cleaned cleanly, the tooth gaps are relatively weak to clean, the abrasion to teeth is large, and the rotary toothbrush is not recommended to be used for a long time. The vibrating type toothbrush is more complicated and higher in price. The electric driving vibration motor is arranged in the vibration type toothbrush, so that the brush head can generate high-frequency vibration perpendicular to the brush handle direction, but the vibration amplitude is very small, generally about 5 mm for each of the upper part and the lower part, and the maximum vibration amplitude in the industry is 6 mm.

The traditional vibration type electric toothbrush has a complex structure for generating vibration, and is expensive in overall price and insufficient in market competitiveness. Meanwhile, the stable amplitude is directly related to the experience degree of a user, and the influence on the market of products is large.

In view of the above, a vibration device for an electric toothbrush is proposed to solve the above problems.

Disclosure of Invention

An object of the utility model is to provide a vibrator for electric toothbrush through providing an effective stable vibrations, simple structure's vibrations emergence structure to realize reduce cost simultaneously, realize effective stable vibrations.

The utility model discloses a technique be:

the utility model provides a vibrator for electric toothbrush, including the motor, still include coupling assembling and eccentric wheel, coupling assembling is connected eccentric wheel and motor, still include first shell, the motor is located the outside of first shell, first shell is equipped with first cavity, first cavity bottom is equipped with first recess, eccentric wheel one end is equipped with first arch, first arch imbeds in the first recess, the first bellied central line coincides with the central line of first recess, the central line of motor coincides with first bellied central line.

Through the scheme, the eccentric wheel passes through coupling assembling and realizes the coaxial coupling with the motor, utilize the eccentric wheel to rotate and produce vibrations, the range of vibrations is decided by the eccentric degree of eccentric wheel and the rotational speed of motor, utilize first shell to fix the eccentric wheel simultaneously, the motor is fixed with the eccentric wheel other end simultaneously, the motor carries out fixed connection through second shell and third shell and first shell, realize the fixed back of motor, the eccentric wheel can realize stable rotation, the range of vibrations remains stable. Meanwhile, the connecting assembly can keep the motor away from the brush head, the motor is effectively guaranteed to be damaged by water vapor, and the brush head is connected with the first shell, so that transmission of the vibrating device to the brush head is achieved.

According to the further optimization of the scheme, the other end of the eccentric wheel is further provided with a second bulge, the center line of the second bulge is overlapped with the center line of the first bulge, one end of the connecting assembly is provided with a second groove, the second bulge is embedded into the second groove, and the center line of the second groove is overlapped with the center line of the motor. The eccentric wheel adopts the symmetrical design, and two archs can change the use, and simple to operate effectively realizes the needs that the fixed of eccentric wheel is connected with the transmission.

As a further optimization of the scheme, the eccentric wheel also comprises an eccentric part, the eccentric part is arranged between the first bulge and the second bulge, and the gravity center of the eccentric part is arranged outside the central line of the first bulge. By controlling the degree of shift of the center of gravity of the eccentric portion, the amplitude of the vibration can be adjusted.

According to the scheme, the outer side surface of the eccentric part is an arc surface, the cross section of the eccentric part is in a concave shape, the first bulge is arranged at one end of the eccentric part, and the second bulge is arranged at the other end of the eccentric part. The eccentric wheel is of a symmetrical structure, the first protrusion and the second protrusion can be exchanged for use, and the installation is simple and convenient.

According to the further optimization of the scheme, a first notch is formed in one side of the second protrusion of the eccentric wheel, a third protrusion is formed in one end of the connecting assembly, and after the second protrusion is embedded into the second groove, the first notch and the third protrusion abut against each other so that the eccentric wheel and the connecting assembly can move relative to each other in the circumferential direction of the second protrusion. Through the gomphosis of first breach and third arch, realize eccentric wheel and coupling assembling's further fixed, simplify two connection structure, realize circular motion's effective transmission.

As a further optimization of scheme, coupling assembling includes first connecting portion, second connecting portion and connecting rod, and the connecting rod is located between first connecting portion and the second connecting portion, and on first connecting portion was located to the second recess, on first connecting portion was located to the third arch, was equipped with first connecting hole on the second connecting portion, and the axis of rotation and the first connecting hole of motor are connected. The connecting assembly is connected with the motor and the eccentric wheel through the two connecting parts, so that the transmission structure is simplified, and the motor is protected.

As the further optimization of scheme, first connecting portion are equipped with the second connecting hole and are used for being connected with the connecting rod, and the second connecting portion are equipped with the third connecting hole and are connected with the connecting rod. The connection effect of the connecting rod can be realized by adopting a threaded connection or an interference fit.

Compared with the prior art, the beneficial effects of the utility model are that:

through the eccentric wheel and the connecting assembly which are independently designed, a simple vibration generating device is provided, the manufacturing cost is effectively reduced, and the market competitiveness is provided.

One end of the eccentric wheel is fixed through the first shell, so that the stable rotation of the eccentric wheel is guaranteed, and meanwhile the first shell provides the effect of installing the brush head.

Through the eccentric wheel structure of symmetrical design, simplified the installation degree of difficulty of eccentric wheel, the simplification of structure can not only reduce cost, can also improve stability simultaneously.

When the connecting assembly effectively realizes rotation transmission, more possibilities are realized for the installation position of the motor, and the motor is effectively protected.

Drawings

Fig. 1 is a schematic structural view of a vibrator for an electric toothbrush according to the present invention;

FIG. 2 is a schematic structural view of a vibrator and a brush head structure for an electric toothbrush according to the present invention;

fig. 3 is a schematic structural view of an eccentric wheel and a connecting assembly of a vibrating device for an electric toothbrush according to the present invention;

fig. 4 is a schematic structural view of a connection assembly of a vibration device for an electric toothbrush according to the present invention.

Detailed Description

The present invention is described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and those skilled in the art should understand that the functions, methods, or structural equivalents or substitutions made by these embodiments are within the scope of the present invention.

In the description of the present embodiments, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to a number of indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.

The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.

Example 1:

referring to fig. 1-4, a vibrator for an electric toothbrush comprises a motor 3, a connecting assembly 2 and an eccentric wheel 1, wherein the connecting assembly 2 connects the eccentric wheel 1 with the motor 3, the vibrator further comprises a first housing 4, the motor 3 is located outside the first housing 4, the first housing 4 is provided with a first cavity 42, the bottom of the first cavity 42 is provided with a first groove 41, the eccentric wheel 1 is arranged in the first cavity 42, one end of the eccentric wheel 1 is provided with a first protrusion 11, the first protrusion 11 is embedded in the first groove 41, the center line of the first protrusion 11 is coincident with the center line of the first groove 41, and the center line of the motor 3 is coincident with the center line of the first protrusion 11.

The tradition utilizes vibrations structures such as eccentric wheel, adopts the structure of motor 3 and eccentric wheel integrated design more, and the eccentric wheel does not have extra fixed simultaneously, and fixed when rotating relies on motor 3's external fixation alone. The using time is long, the unstable rotation of the motor 3 and the eccentric wheel is easy to occur, the vibration of the brush head 7 is unstable, the amplitude is unstable, the using feeling is poor, and the market competitiveness is reduced.

Adopt the mode that other vibrations produced, wherein the structure is complicated, leads to the cost to be high, is difficult to carry out the promotion of benefiting the people.

Meanwhile, the motor 3 is too close to the brush head 7, so that serious potential safety hazards exist when the sealing fails.

The vibration device has the advantages of stable operation, simple structure and good use effect.

Specifically, eccentric wheel 1 realizes the coaxial coupling with motor 3 through coupling assembling 2, utilize eccentric wheel 1 to rotate and produce vibrations, the range of vibrations is decided by eccentric wheel 1's eccentric degree and weight and the rotational speed of motor 3, utilize first shell 4 to utilize first cylindrical recess 41 and cylindrical first arch 11 to cooperate simultaneously, do not produce the rotational resistance when fixing eccentric wheel 1, motor 3 fixes with the eccentric wheel 1 other end simultaneously, motor 3 carries out fixed connection through second shell 5 and third shell 6 and first shell 4, realize motor 3's fixed back, eccentric wheel 1 both ends have all carried out effective the fixing, eccentric wheel 1 can realize stable rotation, the range of vibrations keeps stable. Meanwhile, the connecting component 2 can keep the motor 3 away from the brush head 7, so that the motor 3 is effectively prevented from being damaged by water vapor. The eccentric wheel 1 generates a vibration effect to be transmitted to the first shell 4 through the connection of the first protrusion 11 and the first groove 41, and the brush head 7 is connected with the first shell 4, so that the transmission of the vibration device to the brush head 7 is realized.

In the in-service use, not lug connection between motor 3 and the first shell 4, the sealed inefficacy can not appear direct influence in first shell 4 appearance, changes coupling assembling 2 and eccentric wheel 1, changes first shell 4 even, and is all more convenient, through presenting one set of first shell 4, coupling assembling 2, as changing the part, can obviously improve market competition.

In case of a fault, a traditional electric toothbrush cannot be maintained by a client, and some small problems can be directly abandoned, so that waste is caused, and the market competitiveness of the product is damaged. The first shell 4 is detachable, and the practical use is more convenient.

Example 2:

referring to fig. 1-4, in the present embodiment, a specific eccentric wheel 1 structure is provided to achieve better effects.

In this embodiment, the other end of the eccentric wheel 1 is further provided with a second protrusion 13, a center line of the second protrusion 13 coincides with a center line of the first protrusion 11, one end of the connecting assembly 2 is provided with a second groove 211, the second protrusion 13 is embedded in the second groove 211, and a center line of the second groove 211 coincides with a center line of the motor 3. The eccentric wheel 1 adopts the symmetrical design, and two protrusions can be exchanged for use, so that the installation is convenient, and the requirements of fixing and transmission connection of the eccentric wheel 1 are effectively met. The symmetrical design, when processing eccentric wheel 1, the processing degree of difficulty greatly reduces, and the cost obtains control, and simultaneously when assembling the product, the assembly degree of difficulty reduces, reduces the human engineering cost.

As a further optimization of the solution, the eccentric wheel 1 further comprises an eccentric portion 12, the eccentric portion 12 being disposed between the first protrusion 11 and the second protrusion 13, the center of gravity of the eccentric portion 12 being outside the center line of the first protrusion 11. By controlling the degree of shift of the center of gravity of the eccentric portion 12 and the mass of the eccentric portion 12, the amplitude of vibration can be adjusted.

As a further optimization of the scheme, the outer side surface of the eccentric part 12 is a cambered surface, the axial section of the eccentric part 12 is in a concave shape, the first bulge 11 is arranged at one end of the eccentric part 12, and the second bulge 13 is arranged at the other end of the eccentric part 12. The eccentric wheel 1 is of a symmetrical structure, the first protrusion 11 and the second protrusion 13 can be exchanged for use, and the installation is simple and convenient. The formation of eccentric portion 12, carry out the opening in cylindrical body and form the character cut in bas-relief can, it is convenient to process, durable.

As a further optimization of the scheme, the eccentric wheel 1 is provided with a first notch 121 on one side of the second protrusion 13, one end of the connecting assembly 2 is provided with a third protrusion 212, and after the second protrusion 13 is inserted into the second groove 211, the first notch 121 abuts against the third protrusion 212, so that the eccentric wheel 1 and the connecting assembly 2 move relatively in the circumferential direction of the second protrusion 13. Through the embedding of the first notch 121 and the third protrusion 212, the eccentric wheel 1 and the connecting assembly 2 are further fixed, the two connecting structures are simplified, and the effective transmission of circular motion is realized.

The cost of the product is determined to a great extent according to the complexity of the processed part, the eccentric wheel 1 provided in the embodiment is processed by adopting a cylindrical material, such as a stainless steel rod, the processing is very convenient, an integral cylindrical surface is processed firstly, the eccentric part 12 is processed, bulges are processed at two ends, and finally the first notch 121 is processed, so that the processing can be completed. The processing can be realized by a simple lathe without excessive processing equipment.

Example 3:

referring to fig. 1 to 4, the present embodiment provides a detailed connection assembly 2 to achieve more practical effects.

In this embodiment, the connecting assembly 2 includes the first connecting portion 21, the second connecting portion 23 and the connecting rod 22, the connecting rod 22 is disposed between the first connecting portion 21 and the second connecting portion 23, the second groove 211 is disposed on the first connecting portion 21, the third protrusion 212 is disposed on the first connecting portion 21, the second connecting portion 23 is provided with the first connecting hole 232, and the rotating shaft of the motor 3 is connected with the first connecting hole 232. The connecting assembly 2 is connected with the motor 3 and the eccentric wheel 1 through two connecting parts, so that the transmission structure is simplified, and the motor 3 is protected.

As a further optimization of the solution, the first connecting portion 21 is provided with a second connecting hole 213 for connecting with the connecting rod 22, and the second connecting portion 23 is provided with a third connecting hole 231 for connecting with the connecting rod 22. The coupling effect of the connecting rod 22 may be achieved by a threaded connection or an interference fit. The connecting rod 22 needs to be made of a material with high rigidity, such as steel, the first connecting portion 21 and the second connecting portion 23 can be made of a material with certain elasticity, interference fit is achieved, and when threaded connection is adopted, the material with high rigidity is suitable.

The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. The utility model provides a vibrator for electric toothbrush, includes motor (3), its characterized in that still includes coupling assembling (2) and eccentric wheel (1), coupling assembling (2) will eccentric wheel (1) with motor (3) are connected, still include first shell (4), motor (3) are located the outside of first shell (4), first shell (4) are equipped with first cavity (42), first cavity (42) bottom is equipped with first recess (41), eccentric wheel (1) one end is equipped with first arch (11), first arch (11) embedding in first recess (41), the central line of first arch (11) with the central line coincidence of first recess (41), the central line of motor (3) with the central line coincidence of first arch (11).

2. A vibrator for an electric toothbrush according to claim 1, characterized in that the other end of the eccentric wheel (1) is further provided with a second protrusion (13), the center line of the second protrusion (13) coincides with the center line of the first protrusion (11), one end of the connecting member (2) is provided with a second groove (211), the second protrusion (13) is embedded in the second groove (211), and the center line of the second groove (211) coincides with the center line of the motor (3).

3. A vibrating device for an electric toothbrush according to claim 2, wherein the eccentric (1) further comprises an eccentric portion (12), the eccentric portion (12) being provided between the first boss (11) and the second boss (13), the center of gravity of the eccentric portion (12) being outside the center line of the first boss (11).

4. A vibration device for an electric toothbrush according to claim 3, wherein the outer side surface of the eccentric portion (12) is a curved surface, the cross section of the eccentric portion (12) is in a concave shape, the first protrusion (11) is provided at one end of the eccentric portion (12), and the second protrusion (13) is provided at the other end of the eccentric portion (12).

5. A vibrating device for an electric toothbrush according to claim 4, characterized in that the eccentric (1) is provided with a first notch (121) at one side of the second protrusion (13), the connecting assembly (2) is provided with a third protrusion (212) at one end, after the second protrusion (13) is embedded in the second groove (211), the first notch (121) and the third protrusion (212) are abutted to realize the relative movement of the eccentric (1) and the connecting assembly (2) in the circumferential direction of the second protrusion (13).

6. The vibrating device for the electric toothbrush according to claim 5, wherein the connecting assembly (2) comprises a first connecting portion (21), a second connecting portion (23) and a connecting rod (22), the connecting rod (22) is arranged between the first connecting portion (21) and the second connecting portion (23), the second groove (211) is arranged on the first connecting portion (21), the third protrusion (212) is arranged on the first connecting portion (21), the second connecting portion (23) is provided with a first connecting hole (232), and the rotating shaft of the motor (3) is connected with the first connecting hole (232).

7. A vibratory device for electric toothbrushes according to claim 6, characterised in that the first connecting portion (21) is provided with a second connecting hole (213) for connection with the connecting rod (22), and the second connecting portion (23) is provided with a third connecting hole (231) for connection with the connecting rod (22).

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