CN216777272U

CN216777272U - Toothbrush head and electric toothbrush

Info

Publication number: CN216777272U
Application number: CN202220052000.6U
Authority: CN
Inventors: 严锦来; 刘书润
Original assignee: Shenzhen Yunding Information Technology Co Ltd
Current assignee: Shenzhen Yunding Information Technology Co Ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2022-06-21
Anticipated expiration: 2032-01-10

Abstract

The utility model discloses a toothbrush head and an electric toothbrush, the toothbrush head comprises a toothbrush head body, a motor, a support and bristles, the bristles are arranged at one end of the toothbrush head body, an opening is formed in one end of the toothbrush head body, which is far away from the bristles, an accommodating cavity communicated with the opening is formed in the toothbrush head body, the motor and the support are both accommodated in the accommodating cavity, the motor is arranged at the bottom of the accommodating cavity, which is close to the bristles, the support is arranged at one side of the motor, which is far away from the bristles, the motor is fixedly connected with the support, the support is fixedly connected with the toothbrush head body, the motor is also abutted against the inner wall of the accommodating cavity, the motor vibrates to drive the toothbrush head body to vibrate, and the toothbrush head body vibrates to drive the bristles to vibrate. The motor is arranged in the toothbrush head body, so that the motor is as far as possible away from the handle, and the vibration sense of the handle is reduced.

Description

Toothbrush head and electric toothbrush

Technical Field

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

Background

The electric toothbrush is a common tooth cleaning tool for people, is used for removing bacteria, tartar and fine sundries attached between teeth, can play a role in preventing periodontal diseases, and protects the oral hygiene and tooth health of people.

In the prior art, the motor is usually arranged inside the handle or in the connecting part of the handle and the toothbrush head body, and the motor transmits the vibration sense to the toothbrush head body through the transmission rod, so that the bristles vibrate.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to overcoming the above-mentioned drawbacks of the prior art and providing a toothbrush head and an electric toothbrush, wherein the motor is disposed inside the toothbrush head body and near the foremost end of the bristles, so that the motor is as far as possible from the handle, thereby reducing the vibration of the handle.

In order to realize the purpose, the technical scheme of the utility model is as follows:

the utility model provides a toothbrush head, includes toothbrush head body, motor, support and brush hair, the brush hair set up in toothbrush head body's one end, toothbrush head body's keeping away from the one end of brush hair is equipped with the trompil, toothbrush head body inside be equipped with the chamber that holds that the trompil is linked together, the motor with the support all hold in hold the intracavity, the motor set up in hold being close to of chamber the bottom of brush hair, the support set up in keeping away from of motor one side of brush hair, the motor with support fixed connection, the support with toothbrush head body fixed connection, the motor is the butt still hold the inner wall in chamber, the motor vibrations drive toothbrush head body vibrations, toothbrush head body vibrations drive the brush hair vibrations.

Preferably, the support includes a support portion and a locking portion disposed on the support portion, the locking portion locks the motor on the support portion, the support portion is connected with the inner wall of the accommodating cavity in a sealing manner, and the motor is sealed in the accommodating cavity.

Preferably, the supporting part is connected with the inner wall of the accommodating cavity in a clamping manner.

Preferably, the inner wall of the accommodating cavity and the side wall of the supporting part are respectively provided with a clamping protrusion and a clamping groove matched with the clamping protrusion, and the clamping protrusion is clamped and connected with the clamping groove, so that the supporting part is fixedly connected with the inner wall of the accommodating cavity.

Preferably, the sealing device further comprises a sealing member, and the sealing member is arranged between the supporting portion and the inner wall of the accommodating cavity.

Preferably, the lateral wall of the supporting part is provided with a mounting groove, and the sealing element is arranged in the mounting groove in an interference fit manner.

Preferably, the locking part includes an extension section extending from an end surface of the support part close to the motor to the bristle direction and a pressing section extending from an end portion of the extension section far from the support part in a transverse direction, the pressing section is pressed at an end of the motor far from the support part, the pressing section presses the motor on the support part, and the extension section presses the motor to an inner wall of the accommodating cavity.

Preferably, the support portion divides the accommodating cavity into a first cavity and a second cavity, the motor is accommodated in the first cavity, and the second cavity is used for accommodating the connecting portion of the handle.

Preferably, a first electric connecting piece is arranged in the supporting portion, a second electric connecting piece is arranged in the connecting portion, the motor is electrically connected with the first electric connecting piece, and the first electric connecting piece is electrically connected with the second electric connecting piece.

The utility model also provides an electric toothbrush which comprises a handle and the toothbrush head, wherein the toothbrush head is connected with the handle.

The embodiment of the utility model has the following beneficial effects:

in the embodiment of the utility model, the motor is directly arranged in the toothbrush head body, and the transmission rod in transmission connection with the motor is not adopted to vibrate the bristles, but the motor is arranged at the position close to the foremost ends of the bristles, so that the motor is far away from the handle as far as possible, and the vibration sense of the handle is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Wherein:

fig. 1 is a schematic sectional view showing a head of a power toothbrush according to an embodiment of the present invention.

Figure 2 is a schematic view of the end construction of the toothbrush head shown in figure 1.

Fig. 3 is a sectional view schematically showing the structure of a handle of an electric toothbrush according to an embodiment of the present invention.

Fig. 4 is an enlarged view of a portion of a structure in fig. 3.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 and 2, the utility model discloses a toothbrush head 20, which comprises a toothbrush head body 21, a motor 22, a support 23 and bristles 24, wherein the bristles 24 are arranged at one end of the toothbrush head body 21, an opening 211 is arranged at one end of the toothbrush head body 21 away from the bristles 24, an accommodating cavity 212 communicated with the opening 211 is arranged inside the toothbrush head body 21, the motor 22 and the support 23 are both accommodated in the accommodating cavity 212, the motor 22 is arranged at the bottom of the accommodating cavity 212 close to the bristles 24, the support 23 is arranged at one side of the motor 22 away from the bristles 24, the motor 22 is fixedly connected with the support 23, the support 23 is fixedly connected with the toothbrush head body 21, the motor 22 is also abutted against the inner wall of the accommodating cavity 212, the motor 22 vibrates to drive the toothbrush head body 21 to vibrate, and the toothbrush head body 21 vibrates to drive the bristles 24 to vibrate. By disposing the motor 22 directly inside the head body 21 and not vibrating the bristles 24 using a driving rod drivingly connected to the motor 22, the motor 22 is disposed near the foremost ends of the bristles 24, so that the motor 22 is located as far as possible from the handle 10, thereby reducing the vibration of the handle 10.

Specifically, in one embodiment, the motor 22 includes a rotating motor 221 and a centrifugal weight 222 connected to an output shaft of the rotating motor 221, the rotating motor 221 rotates to drive the centrifugal weight 222 to rotate in a biased manner, the centrifugal weight 222 rotates in a biased manner to drive the rotating motor 221 to vibrate, and the rotating motor 221 transmits the vibration to the bristles 24 through the toothbrush head body 21 to vibrate the bristles 24. An end of the rotating motor 221 facing away from the centrifugal weight 222 is mounted to the bracket 23, and the centrifugal weight 222 is suspended in the accommodating chamber 212.

Further, in an embodiment, the bracket 23 includes a supporting portion 231 and a locking portion 232 disposed on the supporting portion 231, the locking portion 232 locks the motor 22 on the supporting portion 231, and the supporting portion 231 is connected to the inner wall in a sealing manner, so as to seal the motor 22 in the accommodating cavity 212 and protect the motor 22. When assembling, the motor 22 is firstly locked on the supporting portion 231 through the locking portion 232, and then the bracket 23 with the motor 22 is installed in the accommodating cavity 212, which is convenient for assembling.

Preferably, the supporting portion 231 is engaged with the inner wall of the accommodating cavity 212, so as to facilitate mounting of the bracket 23. The supporting portion 231 and the inner wall of the accommodating cavity 212 are respectively provided with an engaging structure 233 which are engaged with each other.

In an embodiment, the engaging structure 233 includes an engaging protrusion and an engaging groove, which are engaged with each other, and the engaging protrusion and the engaging groove are respectively disposed on the inner wall of the accommodating cavity 212 and the side wall of the supporting portion 231, and the engaging protrusion and the engaging groove are engaged with each other, so that the supporting portion 231 is fixedly connected to the inner wall.

Specifically, in this embodiment, the engaging protrusion is a closed circular engaging protrusion, and the engaging groove is a closed circular engaging groove, which not only has a fixing and connecting function, but also has a sealing function. The engaging protrusion may be disposed on the supporting portion 231 or on the inner wall of the accommodating cavity 212, and correspondingly, the engaging groove may be disposed on the sidewall of the supporting portion 231 or on the inner wall of the accommodating cavity 212 at will.

In other embodiments, the engaging protrusion may also be an intermittent circular engaging protrusion, and the engaging groove may be a closed circular engaging groove or an intermittent circular engaging groove.

In other embodiments, the engaging structure 233 may further include an elastic engaging protrusion and an engaging groove, the elastic engaging protrusion includes an elastic member and an engaging portion connected to the elastic member, the engaging portion can retract and pop up, and the elastic member is compressed when the engaging portion retracts, and the elastic member has a tendency to pop out of the engaging portion. The prior art suitable engaging structure 233 is within the scope of the present invention.

Of course, the bracket 23 and the inner wall of the accommodating cavity 212 can be fixed by other connection methods, for example, the accommodating cavity 212 is blocked by interference fit, the bracket 23 is fixed, or the bracket 23 is connected by screw threads, etc.

In a specific embodiment, the toothbrush head 20 further includes a sealing member 25, and the sealing member 25 is disposed between the side wall of the supporting portion 231 and the inner wall of the receiving cavity 212 to seal a gap between the side wall of the supporting portion 231 and the inner wall of the receiving cavity 212.

Specifically, in an embodiment, the sealing element 25 is a sealing ring, and the side wall of the supporting portion 231 is provided with a mounting groove, and the sealing ring is interference-mounted in the mounting groove. During assembly, the sealing ring is firstly installed in the installation groove, and then the support 23 and the motor 22 are integrally installed in the accommodating cavity 212, so that assembly is facilitated. The number of the sealing rings is at least one, and two or more sealing rings surrounding the side wall of the supporting portion 231 may be provided to enhance the sealing effect.

In another embodiment, the seal 25 is integrally formed with the bracket 23 by an injection molding process.

In a specific embodiment, the locking portion 232 includes an extending section 2321 extending from an end of the supporting portion 231 close to the motor 22 in the direction of the bristles 24 and a pressing section 2322 extending from an end of the extending section 2321 far from the supporting portion 231 in the transverse direction, the pressing section 2322 is pressed on an end of the motor 22 far from the supporting portion 231, the pressing section 2322 presses the motor 22 against the supporting portion 231, and the extending section 2321 presses the motor 22 against the inner wall of the accommodating cavity 212. The vibration of the motor 22 can be transmitted to the bristles 24 through the head body 21.

In one embodiment, the bracket 23 divides the receiving cavity 212 into a first cavity 2121 and a second cavity 2122, the motor 22 is received in the first cavity 2121, and the second cavity 2122 is used for receiving the connecting portion 123 of the handle 10.

The utility model also discloses an electric toothbrush, which comprises a handle 10 and the toothbrush head 20, wherein the toothbrush head 20 is connected with the handle 10.

The handle 10 comprises a shell 11, a support frame 12, a circuit board component 15 and a power supply component 14, wherein an opening is formed in the end part of the shell 11 connected with the toothbrush head 20, an accommodating cavity 111 communicated with the opening is formed in the shell 11, and the support frame 12 is installed in the opening; the supporting frame 12 comprises a connecting portion 123 extending out of the opening and a fixing portion 121 extending into the opening, the connecting portion 123 is connected with the fixing portion 121, the connecting portion 123 is accommodated in the second cavity 2122 and connected with the toothbrush head 20, the fixing portion 121 is connected with the inner wall of the opening, the circuit board assembly 15 and the power supply assembly 14 are both accommodated in the accommodating cavity 111, the power supply assembly 14 provides electrical connection for the motor 22 and the circuit board assembly, and the circuit board assembly is used for controlling parameters of the motor 22 such as on/off, rotating speed and rotating time.

In one embodiment, the supporting frame 12 further includes a sealing portion 122 surrounding the fixing portion 121, and the sealing portion 122 is used for sealing a gap between the fixing portion 121 and an inner wall of the opening. After assembly, the fixing portion 121 and the inner wall of the opening share the pressing sealing portion 122, and the sealing portion 122 is in interference fit to achieve waterproof sealing.

Preferably, the sealing portion 122 and the fixing portion 121 are integrally formed, and the fixing portion 121 and the sealing portion 122 are integrally formed, so that a sealing ring is not separately sleeved, and not only is the assembly cost reduced, but also the accumulated tolerance is reduced, and the waterproof performance is improved. The connecting portion 123, the fixing portion 121, and the sealing portion 122 may be integrally formed by an injection molding process.

In an embodiment, the sealing portion 122 includes an annular sealing body 1221 connected to the fixing portion 121 and a sealing ring protrusion 1222 protruding from a surface of the annular sealing body 1221, and the sealing ring protrusion 1222 further improves sealing performance. The number of the packing protrusions 1222 is at least 1, and the sealing effect can be enhanced by increasing the number of the packing protrusions 1222. The annular sealing body 1221 and the sealing ring protrusion 1222 are made of elastic materials, such as silicone resin. The material of the fixing portion and the connecting portion 123 is a rigid material, such as a hard plastic material. The annular sealing body 1221, the sealing ring protrusion 1222 and the fixing portion may be integrally formed by injection molding.

The bracket 23 is internally provided with a first electric connecting piece 26, the support frame 12 is internally provided with a second electric connecting piece 13, the first electric connecting piece 26 penetrates through the bracket 23, one end of the first electric connecting piece 26 is electrically connected with the motor 22, the other end of the first electric connecting piece is electrically connected with the second electric connecting piece 13, the second electric connecting piece 13 penetrates through the support frame 12, one end of the second electric connecting piece 13 is electrically connected with the first electric connecting piece 26, and the other end of the second electric connecting piece 13 is electrically connected with the power supply component 14 and/or the circuit board component 15 in the accommodating cavity 111.

In particular, the first electrical connector 26 may be a conductive sheet or a conductive pin, etc. The second electrical connections 13 may also be conductive sheets or pins or the like. In this embodiment, the first electrical connectors 26 are conductive strips and the second electrical connectors 13 are conductive pins.

Preferably, the connecting portion 123 is engaged with an inner wall of the second housing 2122.

In a particular embodiment, the end of the support 12 adjacent to the head 20 and/or the end of the support 23 adjacent to the handle 10 are provided with a water-tight structure for preventing a short circuit when the first electrical connector 26 is electrically connected to the second electrical connector 13.

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 claims. 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. The utility model provides a toothbrush head, a serial communication port, including toothbrush head body, motor, support and brush hair, the brush hair set up in toothbrush head body's one end, toothbrush head body's keeping away from the one end of brush hair is equipped with the trompil, toothbrush head body inside be equipped with the chamber that holds that the trompil is linked together, the motor with the support all hold in hold the intracavity, the motor set up in hold being close to of chamber the bottom of brush hair, the support set up in keeping away from of motor one side of brush hair, the motor with support fixed connection, the support with toothbrush head body fixed connection, the motor still butt hold the inner wall in chamber, the motor vibrations drive toothbrush head body vibrations, toothbrush head body vibrations drive the brush hair vibrations.

2. The toothbrush head of claim 1, wherein the bracket includes a support portion and a locking portion disposed on the support portion, the locking portion locking the motor to the support portion, the support portion being sealingly engaged with the inner wall of the receiving cavity to seal the motor in the receiving cavity.

3. A toothbrush head according to claim 2 characterised in that the support portion is in snap-fit engagement with the inner wall of the receiving cavity.

4. The toothbrush head of claim 3, wherein the inner wall of the accommodating cavity and the side wall of the supporting part are respectively provided with a clamping protrusion and a clamping groove matched with the clamping protrusion, and the clamping protrusion is clamped and connected with the clamping groove to fixedly connect the supporting part with the inner wall of the accommodating cavity.

5. A toothbrush head according to claim 3 further including a seal disposed between the support portion and the inner wall of the receiving cavity.

6. A toothbrush head according to claim 5 characterised in that the side walls of the support portion are provided with mounting slots in which the sealing member is interference fitted.

7. A toothbrush head according to any one of claims 2 to 5 wherein the locking part includes an extension part extending from the end of the support part adjacent to the motor in the direction of the bristles and a pressing part extending transversely from the end of the extension part remote from the support part, the pressing part being pressed onto the end of the motor remote from the support part, the pressing part pressing the motor against the support part and the extension part pressing the motor against the inner wall of the receiving cavity.

8. A toothbrush head according to claim 2 characterised in that the support portion divides the receiving cavity into a first cavity in which the motor is received and a second cavity for receiving the connecting portion of the handle.

9. A toothbrush head according to claim 8, characterised in that a first electrical connection is provided in the support portion and a second electrical connection is provided in the connecting portion, the motor being electrically connected to the first electrical connection, the first electrical connection being electrically connected to the second electrical connection.

10. A powered toothbrush comprising a handle and a toothbrush head according to any one of claims 1 to 9, the toothbrush head being connected to the handle.