CN212850211U

CN212850211U - Toothbrush handle and electric toothbrush

Info

Publication number: CN212850211U
Application number: CN202022222533.8U
Authority: CN
Inventors: 李建如; 赵立群
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-03-30
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses a toothbrush handle and electric toothbrush relates to toothbrush technical field. The toothbrush handle comprises a vibration machine core and a shell, wherein the vibration machine core comprises a support, a rotor and a stator. The rotor and the stator are arranged on the bracket oppositely, and the rotor is used for being connected with a brush head of the electric toothbrush so as to drive the brush head to vibrate. Installation space has been seted up to the shell, the both ends of support respectively with two inner wall connections of installation space, the outer peripheral face of support is equipped with first location portion, is equipped with first cooperation portion on installation space's the inner wall, and first cooperation portion and the cooperation of first location portion. The toothbrush handle and the electric toothbrush have the characteristics of small volume and stable structure.

Description

Toothbrush handle and electric toothbrush

Technical Field

The utility model relates to a toothbrush technical field particularly, relates to a toothbrush handle and electric toothbrush.

Background

The handle of current electric toothbrush generally includes battery, motor, support and shell, and wherein, motor self has the shell, and sets up in the support to make the support volume great, and the support sets up in the shell again, thereby makes the volume of toothbrush handle great, influences the appearance design of toothbrush handle, also influences user's use simultaneously and experiences.

In view of the above, it is important to develop a toothbrush handle and an electric toothbrush that can solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a toothbrush handle, it has the characteristics that the volume is less, and the structure is more stable.

Another object of the present invention is to provide an electric toothbrush, which has the features of small size and stable structure.

The utility model provides a technical scheme:

in a first aspect, an embodiment of the present invention provides a toothbrush handle, including a vibrating movement and a housing, where the vibrating movement includes a bracket, a rotor, and a stator; the rotor and the stator are oppositely arranged on the bracket, and the rotor is used for being connected with a brush head of the electric toothbrush so as to drive the brush head to vibrate; the shell is provided with an installation space, two ends of the support are respectively connected with two inner walls of the installation space, the outer peripheral surface of the support is provided with a first positioning part, the inner wall of the installation space is provided with a first matching part, and the first matching part is matched with the first positioning part.

With reference to the first aspect, in a first implementation manner of the first aspect, the housing is provided with an installation opening and a driving opening, the installation opening is communicated with the installation space, and the installation opening is opposite to the driving opening; one end of the rotor extends out of the mounting space from the driving opening to be connected with the brush head, and the bracket can be inserted into the mounting space through the mounting opening; the first positioning portion and the first matching portion are both arranged in a strip shape and extend along a first direction, and the first positioning portion can slide along the first matching portion, wherein the first direction is a direction from the driving opening to the mounting opening.

With reference to the first aspect and the foregoing implementation manner, in a second implementation manner of the first aspect, an end surface of the bracket, which is close to the driving opening, abuts against an inner wall of the installation space, and is provided with a third positioning portion, the inner wall of the installation space is provided with a second matching portion, and the second matching portion is matched with the third positioning portion.

With reference to the first aspect and the foregoing implementation manner, in a third implementation manner of the first aspect, a second positioning portion is disposed on the stator, the second positioning portion and the first positioning portion are both arranged in a strip shape, and the first positioning portion and the second positioning portion are connected to cooperate with the first matching portion.

With reference to the first aspect and the foregoing implementation manner, in a fourth implementation manner of the first aspect, the vibration core further includes a first vibration reduction elastic portion, and the first vibration reduction elastic portion is disposed on the outer peripheral surface of the bracket and abuts against the first matching portion.

With reference to the first aspect and the foregoing implementation manner, in a fifth implementation manner of the first aspect, a positioning groove is formed in the first vibration damping elastic portion, and a positioning protrusion is further formed on the outer peripheral surface of the bracket and is matched with the positioning groove.

With reference to the first aspect and the foregoing implementation manner, in a sixth implementation manner of the first aspect, the first positioning portions are multiple segments, the multiple segments of the first positioning portions sequentially extend along a same straight line at intervals, and the plurality of first vibration damping elastic portions are respectively disposed in an interval between two adjacent segments of the first positioning portions.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in a seventh implementation manner of the first aspect, the vibration core further includes a second vibration damping elastic portion, and two adjacent first vibration damping elastic portions are connected by the second vibration damping elastic portion; the side surface of the first positioning part is provided with a containing groove, and the second vibration reduction elastic part is arranged in the containing groove.

With reference to the first aspect and the foregoing implementation manner, in an eighth implementation manner of the first aspect, the vibration core further includes a battery, the bracket is provided with a battery compartment, and the battery is mounted in the battery compartment; the vibrating movement further comprises a third vibration reduction elastic part, wherein the third vibration reduction elastic part is located in the battery bin and elastically deforms and compresses between the battery and the bracket.

In a second aspect, an embodiment of the present invention further provides an electric toothbrush, wherein the toothbrush handle includes a vibrating movement and a housing, and the vibrating movement includes a bracket, a rotor and a stator; the rotor and the stator are oppositely arranged on the bracket, and the rotor is used for being connected with a brush head of the electric toothbrush so as to drive the brush head to vibrate; the shell is provided with an installation space, two ends of the support are respectively connected with two inner walls of the installation space, the outer peripheral surface of the support is provided with a first positioning part, the inner wall of the installation space is provided with a first matching part, and the first matching part is matched with the first positioning part.

Compared with the prior art, the embodiment of the utility model provides a toothbrush handle includes for prior art's beneficial effect:

the toothbrush handle comprises the vibration machine core and a shell, the vibration machine core comprises a support, a rotor and a stator, the rotor and the stator are arranged on the support, the rotor and the stator are arranged oppositely and are driven to rotate by the stator, the rotor is used for being connected with a brush head of the electric toothbrush and is driven to vibrate by the rotor, so that the rotor and the stator are directly arranged on the support to form a vibration motor, the vibration motor is used as a part for connecting the rotor and the stator by the support and a shell of the vibration motor is omitted, the size of the vibration machine core is reduced, an installation space is arranged on the shell, two ends of the support are respectively connected with two inner walls of the installation space, the outer peripheral surface of the support is provided with a first positioning part, a first matching part is arranged on the inner wall of the installation space and is matched with the first positioning part, so that the position of the support in the shell is limited by the outer peripheral surface of the, so as to improve the structural stability of the vibration movement installed in the shell.

The embodiment of the present invention provides an electric toothbrush which has the same advantages as the toothbrush handle described above with respect to the prior art, and is not described herein again.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

Fig. 1 is a schematic structural view of a toothbrush handle applied to an electric toothbrush according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a toothbrush handle according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of the structure shown at a-a in fig. 2.

Fig. 4 is a schematic cross-sectional view of the structure shown at B-B in fig. 2.

Fig. 5 is a partially cut-away structural schematic view of a shell of a toothbrush handle according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a bracket of a toothbrush handle provided by an embodiment of the present invention after assembly.

Fig. 7 is a schematic structural view of a bracket of a toothbrush handle according to an embodiment of the present invention.

Fig. 8 is an exploded view of a bracket of a toothbrush handle according to an embodiment of the present invention.

Icon: 100-an electric toothbrush; 20-a brush head; 10-toothbrush handle; 11-a vibrating movement; 111-a scaffold; 112-a stent body; 1121-a first positioning portion; 1122-a receiving groove; 1123-positioning bumps; 1125-battery compartment; 113-end cap; 1133-a third locator; 115-a vibration motor; 1151-a rotor; 1153-a spindle; 1155-a stator; 1152-a second locator; 1101-a first vibration-damping elastic portion; 1105-positioning grooves; 1102-a second vibration damping elastic portion; 1103 — a third vibration-damping elastic portion; 116-a battery; 117-elastic seal; 12-a housing; 126-installation space; 127-a mounting opening; 128-drive opening; 121-a first mating portion; 122-a second mating portion; d-the first direction.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. The terms "upper", "lower", "inner", "outer", "left", "right", and the like refer to orientations or positional relationships based on those shown in the drawings, or orientations or positional relationships that are conventionally used to place the products of the present invention, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used merely to facilitate the description of the present invention and to simplify the description, but do not indicate or imply that the device or component being 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. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

It is also to be understood that, unless expressly stated or limited otherwise, the terms "disposed," "connected," and the like are intended to be open-ended, and mean "connected," i.e., fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following describes in detail embodiments of the present invention with reference to the accompanying drawings.

Example (b):

referring to fig. 1, fig. 1 is a schematic structural view illustrating a toothbrush handle 10 applied to an electric toothbrush 100 according to an embodiment of the present invention.

The embodiment of the utility model provides a toothbrush handle 10, this toothbrush handle 10 has the characteristics that the volume is less, and the structure is more stable. The toothbrush handle 10 can be applied to a scene requiring vibration, such as an electric toothbrush 100, a depilator, a beauty instrument, a skin tenderer, and a tooth rinsing device. Of course, the toothbrush handle 10 can also be used independently.

Take toothbrush handle 10 to be applied to electric toothbrush 100 as an example, this electric toothbrush 100 includes toothbrush handle 10 and brush head 20, and the one end of toothbrush handle 10 is connected with brush head 20 to drive brush head 20 vibration, because electric toothbrush 100 has adopted the toothbrush handle 10 that the embodiment of the utility model provides, so this electric toothbrush 100 also has the characteristics that the volume is less, and the structure is more stable.

The structure, operation and advantages of the toothbrush handle 10 according to the embodiment of the present invention will be described in detail below.

Referring to fig. 2, 3 and 4, and fig. 5 and 6, fig. 2 is a schematic structural view of a toothbrush handle 10 according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of the structure shown at a-a in fig. 2. Fig. 4 is a schematic cross-sectional view of the structure shown at B-B in fig. 2. In fig. 2, the direction indicated by the arrow D is the first direction D. Fig. 5 is a partially cut-away schematic view of the housing 12 of the toothbrush handle 10 according to the embodiment of the present invention. Fig. 6 is a schematic structural view of the bracket 111 of the toothbrush handle 10 according to the embodiment of the present invention after the assembly.

The toothbrush handle 10 comprises the vibration movement 11 and the housing 12, the vibration movement 11 comprises a frame 111, a rotor 1151 and a stator 1155, the rotor 1151 and the stator 1155 are both disposed on the frame 111, and the rotor 1151 and the stator 1155 are disposed opposite to each other, so as to drive the rotor 1151 to rotate through the stator 1155, the rotor 1151 is used for being connected with the brush head 20 of the electric toothbrush 100, so as to drive the brush head 20 to vibrate through the rotor 1151, in other words, the rotor 1151 and the stator 1155 are directly mounted on the frame 111 to form a vibration motor 115, which is a component connecting the rotor 1151 and the stator 1155 through the frame 111, and a housing of the vibration motor 115 is omitted, so as to reduce the volume of the vibration movement 11, the housing 12 is provided with a mounting space 126, two ends of the frame 111 are respectively connected with two inner walls of the mounting space 126, and the outer circumferential surface of the frame 111 is provided with a first positioning portion 1121, the inner wall of the mounting, and the first engaging portion 121 engages with the first positioning portion 1121, so that the position of the bracket 111 in the housing 12 is limited from the outer circumferential surface of the bracket 111, thereby improving the structural stability of the mounting of the vibrating movement 11 in the housing 12.

It should be noted that, in this embodiment, the vibration movement 11 is configured in an elongated shape, the bracket 111 is also configured in an elongated shape, the rotor 1151 is located at one end of the bracket 111, and the rotating shaft 1153 of the rotor 1151 extends out of one end of the bracket 111 to be connected to the brush head 20, the bracket 111 includes a bracket main body 112 and an end cover 113, the first positioning portion 1121 extends from the bracket main body 112 to the end cover 113, the rotor 1151 is located in the bracket main body 112, and one end of the rotating shaft 1153 is rotatably connected to the bracket main body 112, the other end of the rotating shaft 1153 extends out of the bracket main body 112, the end cover 113 is sleeved on one end of the rotating shaft 1153 extending out of the bracket main body 112, and is connected to the bracket main body 112 and is rotatably connected to the rotating shaft 1153, as shown in fig. 2 and fig. 6, and before the bracket 111 is installed to the.

Further, the housing 12 may be formed with a mounting opening 127 and a driving opening 128, wherein the mounting opening 127 and the driving opening 128 are both communicated with the mounting space 126, and the mounting opening 127 is opposite to the driving opening 128. The holder 111 can be inserted into the mounting space 126 through the mounting opening 127, and such that one end of the rotor 1151 protrudes out of the mounting space 126 from the driving opening 128 to be connected with the brush head 20; the first positioning portion 1121 and the first matching portion 121 are both disposed in a strip shape and extend along a first direction D, and the first positioning portion 1121 can slide along the first matching portion 121, wherein the first direction D is a direction from the driving opening 128 to the mounting opening 127.

In other words, in the process of installing the bracket 111 to the installation space 126, the bracket 111 can be gradually extended into the installation space 126 from the installation opening 127 along the first direction D, and since the first positioning portion 1121 and the first matching portion 121 are both strip-shaped and extend along the first direction D, in the process of extending the bracket 111 into the installation space 126, the first positioning portion 1121 can slide along the first matching portion 121, so as to limit the position of the bracket 111 in the installation space 126, so as to circumferentially limit the bracket 111, thereby improving the precision and convenience of assembling the toothbrush handle 10.

Further, the stator 1155 may also be provided with a second positioning portion 1152, the second positioning portion 1152 is also provided in a strip shape, and the first positioning portion 1121 and the second positioning portion 1152 are connected to cooperate with the first cooperating portion 121 together, so as to improve the stability of the position limitation of the first cooperating portion 121 on the bracket 111.

It should be noted that, in the present embodiment, the number of the stators 1155 is two, and the two stators 1155 are respectively disposed on two openings (not shown) on the bracket main body 112, so that the two stators 1155 correspond to the rotors 1151, and the vibration motor 115 is formed, and this way of forming the vibration motor 115 does not reduce the overall size of the vibration motor 115 while reducing the overall size of the toothbrush handle 10, compared with the prior art, the rotors 1151 and the stators 1155 of the vibration motor 115 of the toothbrush handle 10 provided in the present embodiment may have larger sizes, so as to increase the torque of the vibration motor 115.

The end surface of the bracket 111 near the driving opening 128 may abut against the inner wall of the mounting space 126, that is, the end cover 113 abuts against the inner wall of the mounting space 126, and the end cover 113 may be provided with a third positioning portion 1133, the inner wall of the mounting space 126 may be provided with a second engaging portion 122, and the second engaging portion 122 engages with the third positioning portion 1133, so that after the bracket 111 extends into the designated position of the mounting space 126, the third positioning portion 1133 further engages with the second engaging portion 122 to limit the position of the bracket 111 in the mounting space 126.

It should be noted that, in this embodiment, each of the first positioning portion 1121, the second positioning portion 1152 and the third positioning portion 1133 is a convex strip, a plurality of sets of two adjacent convex strips are disposed on the installation space 126, the first matching portion 121 and the second matching portion 122 are grooves formed between two adjacent convex strips, the first positioning portion 1121 and the second positioning portion 1152 are located in the first matching portion 121, and the third positioning portion 1133 can be located in the second matching portion 122. In other embodiments, the first positioning portion 1121, the second positioning portion 1152, and the third positioning portion 1133 can be grooves, and the first matching portion 121 and the second matching portion 122 can also be convex strips matching with the grooves.

With continuing reference to fig. 2, and with further reference to fig. 7 and 8, fig. 7 is a schematic structural view of the bracket 111 of the toothbrush handle 10 according to the embodiment of the present invention. Fig. 8 is an exploded view of the bracket 111 of the toothbrush handle 10 according to the embodiment of the present invention.

The vibrating core 11 may further include a first vibration damping elastic portion 1101, where the first vibration damping elastic portion 1101 is disposed on an outer circumferential surface of the bracket 111 and abuts against the first matching portion 121, and since the first vibration damping elastic portion 1101 has elasticity, vibration transmitted to the housing 12 through the bracket 111 is reduced, so as to achieve an effect of reducing noise and vibration.

It should be noted that, in this embodiment, the first vibration damping elastic portion 1101 may be in interference fit with the groove corresponding to the first matching portion 121, so that neither the first positioning portion 1121 nor the second positioning portion 1152 contacts the groove corresponding to the first matching portion 121, thereby further reducing the vibration transmitted to the housing 12 through the bracket 111, and improving the noise reduction and vibration damping effects.

In addition, in this embodiment, the first positioning portions 1121 may be a plurality of segments, and the plurality of segments of the first positioning portions 1121 sequentially extend along the same straight line at intervals, and the first vibration damping elastic portions 1101 may also be a plurality of segments, and are respectively disposed in the interval between two adjacent segments of the first positioning portions 1121, so as to further improve the noise reduction and vibration damping effects of the first vibration damping elastic portions 1101.

Further, the vibrating core 11 may further include a second vibration-damping elastic portion 1102, two adjacent first vibration-damping elastic portions 1101 are connected by the second vibration-damping elastic portion 1102, and a containing groove 1122 may be formed on a side surface of the first positioning portion 1121, and the second vibration-damping elastic portion 1102 is disposed in the containing groove 1122, in other words, the first vibration-damping elastic portion 1101 extends along the side surface of the first positioning portion 1121, so as to prevent the side surface of the first positioning portion 1121 from directly contacting with the side wall of the first matching portion 121, and further reduce the vibration transmitted to the housing 12 through the bracket 111.

In addition, the first vibration damping elastic part 1101 may be provided with a positioning groove 1105, the outer circumferential surface of the holder 111 may be provided with a positioning protrusion 1123, and the positioning protrusion 1123 may cooperate with the positioning groove 1105 to maintain the first vibration damping elastic part 1101 at a predetermined position, thereby reducing the probability that the first vibration damping elastic part 1101 will fall off during the process of installing the holder 111 into the installation space 126.

Further, the vibrating movement 11 may further include a battery 116, and the bracket 111 may further have a battery compartment 1125, where the battery 116 is mounted in the battery compartment 1125. The vibration engine 11 may further include a third vibration-damping elastic portion 1103, where the third vibration-damping elastic portion 1103 is located in the battery compartment 1125, and elastically deforms and compresses between the battery 116 and the bracket 111, in other words, the third vibration-damping elastic portion 1103 is located between the battery 116 and the battery compartment 1125, and abuts against the battery 116 to perform a vibration-damping function.

In the present embodiment, the first, second, and third damping

elastic portions

1101, 1102, and 1103 are integrally formed, and may be formed on the bracket 111 by a double-shot or two-color injection molding process. Further, the vibration movement 11 may include two sets of first, second, and third vibration-damping

elastic portions

1101, 1102, and 1103, and the two third vibration-damping elastic portions 1103 are located at both ends of the battery 116, respectively.

Furthermore, the vibration movement 11 may further include an elastic sealing element 117, the elastic sealing element 117 is sleeved on the rotating shaft 1153 and the end cap 113, and abuts against the inner wall of the housing 12 when the vibration movement 11 is inserted into the installation space 126, so as to prevent impurities such as water from entering the housing 12 through a gap between the rotating shaft 1153 and the housing 12, and to reduce the vibration transmitted to the housing 12 through the bracket 111.

The embodiment of the present invention provides a working principle of a toothbrush handle 10:

the toothbrush handle 10 comprises the vibration movement 11 and the housing 12, the vibration movement 11 comprises a frame 111, a rotor 1151 and a stator 1155, the rotor 1151 and the stator 1155 are both disposed on the frame 111, and the rotor 1151 and the stator 1155 are disposed opposite to each other, so as to drive the rotor 1151 to rotate through the stator 1155, the rotor 1151 is used for being connected with the brush head 20 of the electric toothbrush 100, so as to drive the brush head 20 to vibrate through the rotor 1151, thereby the rotor 1151 and the stator 1155 are directly mounted on the frame 111, so as to form a vibration motor 115, which is a component connecting the rotor 1151 and the stator 1155 through the frame 111, and a housing of the vibration motor 115 is omitted, so as to reduce the volume of the vibration movement 11, the housing 12 is provided with a mounting space 126, two ends of the frame 111 are respectively connected with two inner walls of the mounting space 126, and the outer circumferential surface of the frame 111 is provided with a first positioning portion 1121, the inner wall of the mounting, and the first engaging portion 121 engages with the first positioning portion 1121, so that the position of the bracket 111 in the housing 12 is limited from the outer circumferential surface of the bracket 111, thereby improving the structural stability of the mounting of the vibrating movement 11 in the housing 12.

In summary, the following steps:

the embodiment of the utility model provides a toothbrush handle 10, it has the characteristics that the volume is less, and the structure is more stable.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and it will be apparent to those skilled in the art that the features in the above embodiments may be combined with each other without conflict, and various modifications and variations of the present invention are possible. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The present embodiments are to be considered 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.

Claims

1. A toothbrush handle is characterized by comprising a vibrating movement (11) and a shell (12), wherein the vibrating movement (11) comprises a bracket (111), a rotor (1151) and a stator (1155);

the rotor (1151) and the stator (1155) are oppositely arranged on the bracket (111), and the rotor (1151) is used for being connected with a brush head (20) of the electric toothbrush (100) so as to drive the brush head (20) to vibrate;

the shell (12) is provided with an installation space (126), two ends of the support (111) are respectively connected with two inner walls of the installation space (126), the outer peripheral surface of the support (111) is provided with a first positioning part (1121), the inner wall of the installation space (126) is provided with a first matching part (121), and the first matching part (121) is matched with the first positioning part (1121).

2. The toothbrush handle according to claim 1, wherein the housing (12) is opened with a mounting opening (127) communicating with the mounting space (126) and a driving opening (128), the mounting opening (127) being opposite to the driving opening (128); one end of the rotor (1151) extends out of the mounting space (126) from the driving opening (128) to be connected with the brush head (20), and the bracket (111) can be inserted into the mounting space (126) through the mounting opening (127);

the first positioning portion (1121) and the first matching portion (121) are both arranged in a strip shape and extend along a first direction (D), and the first positioning portion (1121) can slide along the first matching portion (121), wherein the first direction (D) is a direction from the driving opening (128) to the mounting opening (127).

3. The toothbrush handle according to claim 2, wherein an end surface of the bracket (111) near the driving opening (128) abuts against an inner wall of the mounting space (126) and is provided with a third positioning portion (1133), the inner wall of the mounting space (126) is provided with a second fitting portion (122), and the second fitting portion (122) is fitted with the third positioning portion (1133).

4. The toothbrush handle according to claim 1, wherein the stator (1155) is provided with a second positioning portion (1152), the second positioning portion (1152) and the first positioning portion (1121) are both arranged in a bar shape, and the first positioning portion (1121) and the second positioning portion (1152) are connected to cooperate with the first engaging portion (121).

5. The toothbrush handle according to any one of claims 1 to 4, wherein the vibrating movement (11) further comprises a first vibration-damping elastic part (1101), the first vibration-damping elastic part (1101) being disposed on an outer circumferential surface of the bracket (111) and abutting against the first fitting part (121).

6. The toothbrush handle according to claim 5, wherein the first vibration-damping elastic part (1101) is provided with a positioning groove (1105), the outer circumferential surface of the bracket (111) is further provided with a positioning protrusion (1123), and the positioning protrusion (1123) is engaged with the positioning groove (1105).

7. The toothbrush handle according to claim 5, wherein the first positioning portion (1121) has a plurality of segments, the plurality of segments of the first positioning portion (1121) sequentially extend along a same straight line at intervals, and the plurality of first vibration-damping elastic portions (1101) are respectively disposed in the interval between two adjacent segments of the first positioning portion (1121).

8. A toothbrush handle as claimed in claim 5, characterized in that the vibrating movement (11) further comprises a second vibration-damping resilient part (1102), adjacent two of the first vibration-damping resilient parts (1101) being connected by the second vibration-damping resilient part (1102);

an accommodating groove (1122) is formed in a side surface of the first positioning portion (1121), and the second vibration damping elastic portion (1102) is disposed in the accommodating groove (1122).

9. The toothbrush handle according to any one of claims 1 to 4, wherein the vibrating movement (11) further comprises a battery (116), a battery compartment (1125) is opened on the bracket (111), and the battery (116) is mounted to the battery compartment (1125);

the vibrating movement (11) further comprises a third vibration-damping elastic part (1103), wherein the third vibration-damping elastic part (1103) is located in the battery chamber (1125) and elastically deforms and compresses between the battery (116) and the bracket (111).

10. An electric toothbrush, characterized in that it comprises a brush head (20) and a toothbrush handle (10) according to any of claims 1 to 9, the rotor (1151) being connected to the brush head (20).