CN215688674U

CN215688674U - Electric toothbrush

Info

Publication number: CN215688674U
Application number: CN202122294780.3U
Authority: CN
Inventors: 俞平
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-02-01
Anticipated expiration: 2031-09-23

Abstract

The utility model discloses an electric toothbrush, which comprises a shell and a driving assembly, wherein the shell comprises an inner shell, an outer shell and a damping sleeve, the inner shell is detachably connected with the outer shell, one end of the inner shell extends towards the inside of the outer shell, the outer shell is convexly arranged at the other end of the inner shell, the damping sleeve is sleeved at one end, far away from the outer shell, of the inner shell, the driving assembly comprises a vibrating motor, a power supply, a first conductive piece and a switch, the vibrating motor is arranged at one end, far away from the outer shell, of the inner shell, the power supply is arranged at one end, far away from the vibrating motor, of the inner shell, the power supply is provided with a first electrode and a second electrode, one end of the first conductive piece is abutted against the negative electrode of the vibrating motor, the other end of the first conductive piece is abutted against the first electrode, the switch is provided with a first contact piece and a second contact piece, the first contact piece is abutted against the positive electrode of the vibrating motor, and the second contact piece is electrically connected with the second electrode. This electric toothbrush need not to constitute the circuit return circuit through the wire welding, simple structure, and the assembly is convenient, can promote electric toothbrush's waterproof performance and damping performance through setting up the shock attenuation cover.

Description

Electric toothbrush

Technical Field

The utility model relates to the technical field related to daily necessities, in particular to an electric toothbrush.

Background

The electric toothbrush is a new product appearing in recent years, a revolution in the field of oral health care has been raised abroad, the electric toothbrush enables the brush head to generate high-frequency vibration through the rapid rotation or vibration of the motor core, so that the toothpaste is instantly decomposed into fine foam to deeply clean the slits between the teeth; meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and achieve the massage effect on the gum tissue.

The existing electric toothbrush has complicated assembly procedures, the electric connection between the motor and the battery is realized by welding with an electric lead, and the electric toothbrush needs manpower or machines to be welded when being assembled, so that the electric toothbrush not only needs to have higher operation precision, but also needs time-consuming and labor-consuming operation process, and is not convenient to assemble. And the existing partial electric toothbrush has poor waterproof performance, and is easy to cause short circuit due to water inflow in the using process, so that the service life of the electric toothbrush is shortened. In addition, the whole toothbrush that also can produce comparatively violent vibrations when vibrations formula electric toothbrush uses, and the user holds the use, and too big vibrations can lead to user's experience to feel relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electric toothbrush which is simple in structure, convenient to assemble and good in waterproof performance and shock absorption performance, so as to overcome the defects in the prior art.

In order to achieve the above purpose, the utility model provides the following technical scheme:

an electric toothbrush comprises a shell and a driving assembly, wherein the shell comprises an inner shell, an outer shell and a damping sleeve, the inner shell is detachably connected with the outer shell, one end of the inner shell extends towards the inside of the outer shell, the other end of the inner shell is convexly provided with the outer shell, the damping sleeve is sleeved at one end, far away from the outer shell, of the inner shell, the driving assembly comprises a vibration motor, a power supply, a first conductive piece and a switch, the vibration motor is installed at one end, far away from the outer shell, of the inner shell, the power supply is installed at one end, far away from the vibration motor, of the inner shell, a first electrode and a second electrode are arranged on the power supply, one end of the first conductive piece is abutted to a negative electrode of the vibration motor, the other end of the first conductive piece is abutted to the first electrode, a first contact piece and a second contact piece are arranged on the switch, and the first contact piece is abutted to a positive electrode of the vibration motor, the second contact piece is electrically connected with the second electrode.

In one embodiment, the inner shell is in threaded connection with the outer shell, the inner shell comprises a bottom cover and an upper cover, the upper cover covers one end of the bottom cover, the upper cover and the bottom cover form an accommodating cavity, the outer surface of the upper cover and the outer surface of one end, far away from the outer shell, of the bottom cover are wrapped by the damping sleeve, the outer shell is arranged at one end, close to the upper cover, of the bottom cover in a protruding mode, the other end of the bottom cover extends towards the inside of the outer shell, the power supply is installed at one end, far away from the upper cover, of the bottom cover, and a clamping piece used for fixing the power supply is arranged on the bottom cover.

In one embodiment, the inner shell further comprises a vibration transmission part, the vibration transmission part is arranged in the accommodating cavity and is clamped with the bottom cover, and the vibration motor and the switch are both arranged on the vibration transmission part.

In one embodiment, the driving assembly further includes a second conductive member, the switch is disposed between the vibration motor and the power source, the switch is clamped to the vibration transmission member, and two ends of the second conductive member respectively abut against the second electrode and the second contact piece.

In one embodiment, the inner shell further comprises a connecting piece, the connecting piece is fixedly connected with one end, far away from the outer shell, of the vibration transmission piece, and the damping sleeve is convexly arranged on the connecting piece.

In one embodiment, the switch and the vibrating motor are arranged in the accommodating cavity, the switch is arranged between the vibrating motor and a power supply, the switch is clamped on the bottom cover, and the second contact piece is abutted to the second electrode.

In one embodiment, the inner shell further comprises a connecting member, the connecting member is fixedly connected with one end of the bottom cover far away from the outer shell, and the connecting member is convexly provided with the damping sleeve.

In one embodiment, the electric toothbrush further comprises a brush head, wherein bristles are arranged at one end of the brush head, and one end, far away from the bristles, of the brush head is sleeved with the connecting piece.

In one embodiment, the vibration motor comprises a motor and an eccentric wheel, the motor is a contact hollow cup motor, a shell of the motor is a negative pole of the motor, a contact of a rear cover of the motor is a positive pole of the motor, and the eccentric wheel is connected with an output shaft of the motor.

In one embodiment, the shock absorbing sleeve is made of silica gel material.

Compared with the prior art, the utility model has the following beneficial effects:

according to the electric toothbrush, the first conductive piece and the switch are arranged, the two ends of the first conductive piece are respectively abutted against the negative electrode of the vibration motor and the first electrode of the power supply, the first contact piece of the switch is abutted against the positive electrode of the vibration motor, and the second contact piece is electrically connected with the second electrode of the power supply, so that a circuit loop is directly formed, the welding connection through a lead is not needed, the assembly difficulty is reduced, and the production efficiency is improved; in addition, through the surface parcel shock attenuation cover at the inner shell, can prevent that water or toothpaste foam from entering into the inside short circuit that causes of electric toothbrush, increase of service life, the shock attenuation cover can reduce the user and grip the feel of vibrations of electric toothbrush formula moreover, promotes user's use and experiences the sense.

Drawings

FIG. 1 is a schematic view of the construction of an electric toothbrush according to a first embodiment of the present invention;

FIG. 2 is an exploded view of the powered toothbrush shown in FIG. 1;

FIG. 3 is an exploded view of the inner housing and drive assembly of the electric toothbrush of FIG. 2;

FIG. 4 is a schematic view of the drive assembly of the electric toothbrush of FIG. 3;

FIG. 5 is an exploded view of a powered toothbrush in accordance with a second embodiment of the present invention;

fig. 6 is an exploded view of the inner housing and the driving assembly of the electric toothbrush shown in fig. 5.

Reference is made to the accompanying drawings in which:

an electric toothbrush 100;

the vibration damping device comprises a shell 10, an inner shell 11, a bottom cover 111, an upper cover 112, a vibration transmission piece 113, a connecting piece 114, an outer shell 12 and a damping sleeve 13; a driving assembly 20, a vibration motor 21, a motor 211, an eccentric wheel 212, a power supply 22, a first conductive piece 23, a second conductive piece 24, a switch 25; a brush head 30.

An electric toothbrush 100 a;

the shock-absorbing shell comprises a shell body 10a, an inner shell 11a, a bottom cover 111a, an upper cover 112a, a connecting piece 113a, an outer shell 12a and a shock-absorbing sleeve 13 a; a driving assembly 20a, a vibration motor 21a, a power source 22a, a first conductive member 23a, a switch 24 a; a brush head 30 a.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When the number of an element is referred to as "a plurality," it can be any number of two or more. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The utility model will be described in detail below with reference to embodiments shown in the drawings,

the first embodiment is as follows:

referring to fig. 1 to 4, a power toothbrush 100 according to a preferred embodiment of the present invention includes a housing 10, a driving assembly 20 disposed in the housing 10, and a brush head 30 detachably connected to the housing 10. The electric toothbrush 100 of the present invention does not need to form a circuit loop by wire welding, and has a simple structure, convenient assembly, and good waterproof and shock-absorbing properties.

As shown in fig. 1 to 3, the housing 10 includes an inner shell 11, an outer shell 12, and a damping sleeve 13. Inner shell 11 and shell 12 can be dismantled and be connected, and the one end of inner shell 11 extends towards shell 12 is inside, and the other end is protruding to be established shell 12, and the one end that shell 12 was kept away from to inner shell 11 is established to the shock attenuation cover 13 cover. In this embodiment, the inner shell 11 is screwed to the outer shell 12; further, the inner shell 11 includes a bottom cover 111 and an upper cover 112, the bottom cover 111 is provided with an external thread, the outer shell 12 is provided with an internal thread corresponding to the external thread, the upper cover 112 covers one end of the bottom cover 111, the upper cover 112 is provided with a plurality of positioning posts (not shown) for connecting the bottom cover 111, the bottom cover 111 is provided with positioning holes (not shown) corresponding to the positioning posts, one end of the bottom cover 111 close to the upper cover 112 is convexly provided with the outer shell 12, the other end extends towards the inside of the outer shell 12, and the upper cover 112 and the bottom cover 111 form an accommodating cavity; further, the inner shell 11 further includes a vibration transmission element 113, the vibration transmission element 113 is disposed in the accommodating cavity, the vibration transmission element 113 is clamped with the bottom cover 111, and the bottom cover 111 is provided with a fastener for fixing the vibration transmission element 113; further, the inner shell 11 further includes a connecting member 114, the connecting member 114 is fixedly connected to an end of the vibration actuator 113 far away from the outer shell 12, in this embodiment, the connecting member 114 and the vibration actuator 113 are integrally formed. The shock-absorbing sleeve 13 wraps the outer surface of the upper cover 112 and the outer surface of one end of the bottom cover 111 far away from the shell 12, and the shock-absorbing sleeve 13 is convexly arranged on the connecting piece 114; after the upper cover 112 is covered with the bottom cover 111, the outer surface of the upper cover 112 and the outer surface of one end of the bottom cover 111 far away from the shell 12 are wrapped by the shock-absorbing sleeve 13 by adopting an encapsulation injection molding process to ensure the sealing property, and in order to prevent the shock-absorbing sleeve 13 from generating radial or axial displacement in the use process to influence the sealing effect, a plurality of grooves are arranged on the outer surfaces of the upper cover 112 and the bottom cover 111 to increase the firmness of the shock-absorbing sleeve 13; in this embodiment, the shock attenuation cover adopts silica gel or rubber to make, because of these two kinds of materials have that waterproof performance is good, has the characteristics of energy-absorbing moreover.

As shown in fig. 3 and 4, the driving assembly 20 includes a vibration motor 21, a power source 22, a first conductive member 23, a second conductive member 24, and a switch 25. The vibration motor 21 is clamped in the vibration transmission part 113, and a clamping part for fixing the vibration motor 21 is arranged on the vibration transmission part 113; in this embodiment, the vibration motor 21 includes a motor 211 and an eccentric wheel 212, the motor 211 is a contact hollow cup motor 211, the housing 12 of the motor 211 is a negative electrode of the motor 211, a rear cover contact of the motor 211 is a positive electrode of the motor 211, the eccentric wheel 212 is connected to an output shaft of the motor 211, and the output shaft of the motor 211 rotates to drive the eccentric wheel 212 to rotate, thereby generating vibration. The power source 22 is installed at one end of the bottom cover 111 far from the upper cover 112, the bottom cover 111 is provided with a clamping member for fixing the power source 22, and the power source 22 is provided with a first electrode and a second electrode (in this embodiment, since the motor 211 can normally work in both forward rotation and reverse rotation, the first electrode and the second electrode are not limited to be a positive electrode or a negative electrode). One end of the first conductive member 23 abuts against the negative electrode of the vibration motor 21, the other end abuts against the first electrode of the power supply 22, one end of the second conductive member 24 abuts against the second electrode of the power supply 22, the other end is electrically connected with the positive electrode of the vibration motor 21, and the first conductive member 23 and the second conductive member 24 are made of conductive metal. The switch 25 is arranged between the power supply 22 and the vibration motor 21, and the switch 25 is clamped with the vibration transmission member 113; further, the switch 25 is provided with a first contact piece (not shown) and a second contact piece (not shown), the first contact piece is abutted with the positive electrode of the vibration motor 21, and the second contact piece is abutted with the second conductive piece 24; the operation of the vibration motor 21 is controlled by switching on or off the first contact piece and the second contact piece by pressing a button of the switch 25, and a button corresponding to the button of the switch 25 is provided on the damper housing 13.

The electric toothbrush 100 of the present invention further includes a brush head 30, wherein bristles are disposed at one end of the brush head 30, and the end of the brush head 30 away from the bristles is sleeved with a connecting member 114.

When the toothbrush is used, the outer shell 12 is unscrewed, the power supply 22 is installed, then the outer shell 12 is screwed with the inner shell 11, the button on the shock absorption sleeve 13 is pressed, the first contact piece and the second contact piece on the switch 25 are communicated, the vibration motor 21 operates, vibration is transmitted to the toothbrush head 30 through the connecting piece 114, and the toothpaste coated on the toothbrush head 30 is vibrated into foam by the bristles on the toothbrush head 30, so that teeth are cleaned conveniently.

According to the electric toothbrush 100, the first conductive piece 23 and the switch 25 are arranged, two ends of the first conductive piece 23 are respectively abutted against the cathode of the vibration motor 21 and the first electrode of the power supply 22, the first contact piece of the switch 25 is abutted against the anode of the vibration motor 21, and the second contact piece is electrically connected with the second electrode of the power supply 22, so that a circuit loop is directly formed, a lead is not required to be welded and connected, the assembly difficulty is reduced, and the production efficiency is improved; in addition, through the surface parcel shock attenuation cover 13 at inner shell 11, can prevent that water or toothpaste foam from entering into the inside short circuit that causes of electric toothbrush 100, increase of service life, shock attenuation cover 13 can reduce the user and grip the vibration of electric toothbrush 100 formula moreover, promotes user's use and experiences the sense.

Example two:

referring to fig. 5 and 6, a second embodiment of an electric toothbrush 100a is shown, which is similar to the electric toothbrush 100 of the first embodiment except that a vibration transmission member 113 is omitted from a housing 10a of the electric toothbrush 100 a. The inner shell 11a includes a bottom cover 111a, an upper cover 112a and a connecting member 113a, the upper cover 112a covers the bottom cover 111a, the upper cover 112a is connected with the bottom cover 111a through a buckle, the bottom cover 111a is provided with a buckle, and the upper cover 112a is provided with a groove corresponding to the buckle; the connecting member 113a is fixedly connected to an end of the bottom cover 111a close to the upper cover 112a, and in this embodiment, the connecting member 113a is integrally formed with the bottom cover 111 a. The inner shell 11a is in threaded connection with the outer shell 12a, the bottom cover 111a and the upper cover 112a are both provided with external threads, and the outer shell 12a is provided with corresponding internal threads. The damping sleeve 13a is wrapped at one end, far away from the outer shell 12a, of the inner shell 111a, and the damping sleeve 13a is convexly arranged on the connecting piece 113 a; further, the shock-absorbing housing 13a and the inner case 11a are coupled together using an over-molding process.

In addition, the second conductive piece 24 is also eliminated from the driving assembly 20a, the driving assembly 20a includes a vibration motor 21a, a power source 22a, a first conductive piece 23a and a switch 24a, the vibration motor 21a is directly clamped between the upper cover 112a and the bottom cover 111a, the power source 22a is disposed at one end of the bottom cover 111a far away from the upper cover 112a, two ends of the first conductive piece 23a are respectively abutted against a negative electrode of the vibration motor 21a and a first electrode of the power source 22a, the switch 24a is disposed between the vibration motor 21a and the power source 22a, the switch 24a is clamped on the bottom cover 111a, a first contact piece of the switch 24a is abutted against a positive electrode of the vibration motor 21a, and a second contact piece is directly abutted against a second electrode of the power source 22 a.

The electric toothbrush 100a of the present invention further includes a brush head 30a, bristles are disposed at one end of the brush head 30a, and one end of the brush head 30a away from the bristles is sleeved with a connecting member 113 a.

Compared with the electric toothbrush 100 of the first embodiment, the electric toothbrush 100a of the present embodiment eliminates the vibration transmission member 113 and the second conductive member 24, so that the structure is simpler and more compact, and the assembly is more convenient.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. An electric toothbrush is characterized in that the electric toothbrush comprises a shell and a driving assembly, the shell comprises an inner shell, an outer shell and a damping sleeve, the inner shell is detachably connected with the outer shell, one end of the inner shell extends towards the inside of the outer shell, the other end of the inner shell is convexly provided with the outer shell, the damping sleeve is arranged at one end, far away from the outer shell, of the inner shell, the driving assembly comprises a vibration motor, a power supply, a first conductive piece and a switch, the vibration motor is arranged at one end, far away from the outer shell, of the inner shell, the power supply is arranged at one end, far away from the vibration motor, of the inner shell, the power supply is provided with a first electrode and a second electrode, one end of the first conductive piece is abutted to a negative electrode of the vibration motor, the other end of the first conductive piece is abutted to the first electrode, the switch is provided with a first contact piece and a second contact piece, and the first contact piece is abutted to a positive electrode of the vibration motor, the second contact piece is electrically connected with the second electrode.

2. The electric toothbrush of claim 1, wherein the inner housing is threadedly coupled to the outer housing, the inner housing includes a bottom cover and an upper cover, the upper cover is disposed at one end of the bottom cover, the upper cover and the bottom cover form a receiving cavity, the shock-absorbing sleeve covers an outer surface of the upper cover and an outer surface of the bottom cover at an end thereof remote from the outer housing, one end of the bottom cover close to the upper cover is protruded from the outer housing, the other end of the bottom cover extends toward the inside of the outer housing, the power supply is mounted at an end of the bottom cover remote from the upper cover, and the bottom cover is provided with a holder for fixing the power supply.

3. The electric toothbrush of claim 2, wherein the inner housing further comprises a vibration transmission member, the vibration transmission member is disposed in the receiving cavity and is connected to the bottom cover, and the vibration motor and the switch are mounted on the vibration transmission member.

4. The electric toothbrush of claim 3, wherein the driving assembly further comprises a second conductive member, the switch is disposed between the vibration motor and the power source, the switch is engaged with the vibration transmission member, and both ends of the second conductive member abut against the second electrode and the second contact piece, respectively.

5. The powered toothbrush as defined in claim 3, wherein the inner housing further includes a connector fixedly connected to an end of the vibration actuator remote from the outer housing, the connector projecting from the shock-absorbing sleeve.

6. The electric toothbrush of claim 2, wherein the switch and the vibrating motor are disposed in the receiving cavity, the switch is disposed between the vibrating motor and the power source, the switch is engaged with the bottom cover, and the second contact piece abuts against the second electrode.

7. The electric toothbrush of claim 6, wherein the inner housing further comprises a connector fixedly connected to an end of the bottom cap remote from the outer housing, the connector protruding from the shock-absorbing cap.

8. The electric toothbrush according to claim 5 or 7, further comprising a brush head, wherein bristles are provided at one end of the brush head, and the end of the brush head remote from the bristles is sleeved with the connecting member.

9. The electric toothbrush of claim 1, wherein the vibration motor comprises an electric motor and an eccentric, the electric motor is a contact coreless motor, a housing of the electric motor is a negative pole of the electric motor, a rear cover contact of the electric motor is a positive pole of the electric motor, and the eccentric is connected to an output shaft of the electric motor.

10. The powered toothbrush as defined in claim 1, wherein the shock absorbing sleeve is made of a silicone material.