CN219940855U - Brush head and electric toothbrush - Google Patents

Abstract

The utility model discloses a brush head and an electric toothbrush, wherein the brush head comprises: the brush head comprises a brush head body, a first bristle group and a second bristle group, wherein the first bristle group and the second bristle group are fixedly arranged on the mounting surface of the brush head body, the first bristle group is arranged along the first direction of the brush head body, the second bristle group is arranged on at least one side of the first bristle group along the second direction of the brush head body, the first bristle group is provided with a first pointed end, the first pointed end is located at the head of the first bristle group, the first pointed end protrudes out of the end of the second bristle group away from the brush head body, and the first direction is perpendicular to the second direction. Therefore, the dead angles of teeth can be cleaned through the bristle modeling of the first tip, the cleaning effect of the brush head is improved, and the user experience is improved.

Description

Brush head and electric toothbrush

Technical Field

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

Background

At present, the brush head of the electric toothbrush is generally simpler in shape, the actual cleaning force is not considered in the brush hair shape, the brush head is difficult to clean the dead angles of teeth, the cleaning effect is poor, and the user experience is poor.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to provide a brush head, in which a first bristle group and a second bristle group are respectively disposed on a brush head body, the first bristle group is provided with a first tip, the first tip is located at a head portion of the first bristle group, and the first tip protrudes out of an end portion of the second bristle group away from the brush head body, so that a dead angle of teeth can be cleaned through bristle modeling of the first tip, cleaning effect of the brush head is improved, and user experience is improved.

A second object of the present utility model is to propose an electric toothbrush.

To achieve the above object, an embodiment of a first aspect of the present utility model provides a brush head, including:

a brush head body;

the brush head comprises a brush head body, a first bristle group and a second bristle group, wherein the first bristle group and the second bristle group are fixedly arranged on the mounting surface of the brush head body, the first bristle group is arranged along the first direction of the brush head body, the second bristle group is arranged on at least one side of the first bristle group along the second direction of the brush head body, the first bristle group is provided with a first tip, the first tip is positioned at the head of the first bristle group, the first tip protrudes out of the end part of the second bristle group away from the brush head body, and the first direction is perpendicular to the second direction.

According to the brush head provided by the embodiment of the utility model, the first bristle group and the second bristle group are respectively arranged on the brush head body, the first bristle group is provided with the first pointed end, and the first pointed end is positioned at the head part of the first bristle group and protrudes out of the end part of the second bristle group away from the brush head body, so that dead angles of teeth can be cleaned through bristle modeling of the first pointed end, the cleaning effect of the brush head is improved, and the user experience is improved.

In some examples of the utility model, the end of the second bristle group remote from the head body has an inclined end face that forms an angle with the mounting surface such that the end of the second bristle group remote from the head body has a high end face and a low end face.

In some examples of the utility model, a first side of the first tip is formed with a first arcuate end surface along the first direction.

In some examples of the utility model, the second side of the first tip is formed with a second arcuate end surface along the first direction.

In some examples of the utility model, the first bristle group includes a first bristle tuft located at a head of the first bristle group, the end of the first bristle tuft remote from the brush head body having a first tip.

In some examples of the utility model, a first side of the first tip has a first end face configured as a first arcuate end face and a second side of the first tip has a second end face configured as a portion of a second arcuate end face in the first direction.

In some examples of the utility model, the first bristle group further comprises a plurality of second bristle tufts, the first bristle tufts and the plurality of second bristle tufts forming a second arcuate end surface at an end remote from the bristle head body.

In some examples of the utility model, the end of the second bristle group remote from the brush head body has a second tip, and the second tip is lower in height than the first tip, the second tip being located in the middle of the second bristle group in the first direction.

In some examples of the utility model, a first side of the second tip is formed with a third arcuate end surface and a second side of the second tip is formed with a fourth arcuate end surface along the first direction, the third arcuate end surface and the fourth arcuate end surface being formed with angled end surfaces.

In some examples of the utility model, the second bristle group includes a third bristle tuft and a plurality of fourth bristle tufts that form a third arcuate end surface and a fourth arcuate end surface at an end of the third bristle tuft and the plurality of fourth bristle tufts remote from the bristle head body.

In some examples of the utility model, a plurality of fourth bristle tufts are located on either side of a third bristle tuft in the first direction, the third bristle tuft having a second tip.

In some examples of the utility model, the second bristle set is disposed on both sides of the first bristle set, and the second bristle set disposed on both sides of the first bristle set is symmetrical with respect to the first bristle set.

To achieve the above object, an embodiment of a second aspect of the present utility model provides an electric toothbrush including a brush head as in the embodiment of the first aspect.

According to the electric toothbrush provided by the embodiment of the utility model, by arranging the brush head, the high-efficiency cleaning of various teeth dead angles can be realized in one tooth brushing period, the cleaning force is improved, meanwhile, the brush head can be prevented from being frequently replaced to meet the cleaning requirements of different teeth dead angles, and the use experience of a user is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a perspective view of a brush head according to one embodiment of the present utility model;

FIG. 2 is an enlarged view of a first view of a brush head according to one embodiment of the present utility model;

FIG. 3 is a partial perspective view of a brush head according to one embodiment of the present utility model;

FIG. 4 is an enlarged view of a second view of a brush head according to one embodiment of the present utility model;

FIG. 5 is a partial top view of a brush head according to one embodiment of the present utility model;

FIG. 6 is a schematic view of a brush head cleaning a socket of a tooth according to one embodiment of the present utility model;

FIG. 7 is a schematic view of a brush head cleaning the crevices and outer walls of molars of teeth according to one embodiment of the utility model;

FIG. 8 is a partial perspective view of a brush head according to another embodiment of the present utility model;

FIG. 9 is a side view of a brush head according to one embodiment of the present utility model;

FIG. 10 is a schematic view of a brush head cleaning the roots of teeth according to one embodiment of the present utility model;

FIG. 11 is a front view of a brush head according to one embodiment of the present utility model;

FIG. 12 is a schematic view of a brush head cleaning the outer walls of teeth according to one embodiment of the present utility model;

FIG. 13 is a partial perspective view of a brush head according to yet another embodiment of the present utility model;

FIG. 14 is a partial perspective view of a brush head according to yet another embodiment of the present utility model;

FIG. 15 is a schematic view of a brush head cleaning the roots of teeth according to another embodiment of the present utility model;

FIG. 16 is a partial perspective view of a brush head according to yet another embodiment of the present utility model;

FIG. 17 is an enlarged view of a portion of FIG. 16 at A;

fig. 18 is a partial enlarged view at B in fig. 16.

Reference numerals:

a brush head 100;

a brush head body 1; a mounting surface 11;

a first bristle group 2; a first tip 21; a first arcuate end surface 22; a second arcuate end surface 23; a first tuft 24; a second tuft 25;

a second bristle group 3; an inclined end face 31; a second tip 32; a third arcuate end surface 33; a fourth arcuate end surface 34; a third tuft of bristles 35; a fourth tuft 36;

teeth 200;

a first direction X; a second direction Y.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

The brush head 100 according to the embodiment of the present utility model is described below with reference to the accompanying drawings, and the brush head 100 may be applied to an electric toothbrush, but the present utility model is not limited thereto, and the brush head 100 may be applied to other devices requiring the use of the brush head 100. The present utility model will be described with respect to the application of the brush head 100 to an electric toothbrush.

As shown in fig. 1 to 18, a brush head 100 according to an embodiment of the first aspect of the present utility model includes: a brush head body 1, a first bristle group 2 and a second bristle group 3.

Specifically, as shown in fig. 1-5, the first bristle group 2 and the second bristle group 3 are both fixedly arranged on the mounting surface 11 of the brush head body 1, further, the first bristle group 2 is arranged along the first direction X of the brush head body 1, and the second bristle group 3 is arranged on at least one side of the first bristle group 2 along the second direction Y of the brush head body 1, as a specific example, as shown in fig. 3, the second bristle group 3 is arranged on both sides of the first bristle group 2, that is, the first bristle group 2 is arranged on the inner side of the mounting surface 11 of the brush head body 1, the second bristle group 3 is arranged on the outer side of the mounting surface 11 of the brush head body 1, and at the same time, the first bristle group 2 is spaced from the second bristle group 3, further, the first bristle group 2 has a first tip 21, as shown in fig. 1 and 2, that is, the first tip 21 is located on the head of the first bristle group 2, that is, as shown in fig. 1-4, the first tip 21 is located at the front end position of the first bristle group 2, that is, the tip 21 protrudes from the end of the second bristle group 3, that is located on the first bristle group 100, that is located at the highest point position of the first bristle group 2, that is located on the end of the first bristle group 2.

After the electric toothbrush is mounted with the brush head 100 of the present utility model, as shown in fig. 6, the first tip 21 of the brush head 100 may be protruded into the socket of the tooth 200 so that the socket of the tooth 200 may be cleaned by the first tip 21, further, as shown in fig. 7, the first tip 21 of the brush head 100 may be protruded into the slit of the adjacent tooth 200 so that the slit of the adjacent tooth 200 may be cleaned by the first tip 21, and with continued reference to fig. 7, the first tip 21 of the brush head 100 may be protruded into the outer wall of the molar of the tooth 200 so that the outer wall of the molar of the tooth 200 may be cleaned by the first tip 21, whereby by providing the first bristle group 2, cleaning of dead angle positions such as the socket, slit, outer wall of the molar of the tooth 200 may be achieved, etc., thereby improving the cleaning effect of the brush head 100 and enhancing the user experience.

According to the brush head 100 of the embodiment of the utility model, the first bristle group 2 and the second bristle group 3 are respectively arranged on the brush head body 1, the first bristle group 2 is provided with the first tip 21, the first tip 21 is positioned at the head of the first bristle group 2, and the first tip 21 protrudes out of the end part of the second bristle group 3, which is far away from the brush head body 1, so that dead angles of teeth 200 can be cleaned through bristle modeling of the first tip 21, the cleaning effect of the brush head 100 is improved, and the user experience is improved.

In some embodiments of the present utility model, as shown in fig. 8-10, the end of the second bristle group 3 remote from the brush head body 1 has an inclined end surface 31, and the inclined end surface 31 forms an included angle with the mounting surface 11, so that the end of the second bristle group 3 remote from the brush head body 1 has a high end surface and a low end surface.

Specifically, as shown in fig. 8 and 9, the end portion of the second bristle group 3 away from the brush head body 1 is set to be an inclined end surface 31, and the inclined end surface 31 has a certain included angle with the mounting surface 11, so that the end portion of the second bristle group 3 away from the brush head body 1 has a high end surface and a low end surface, and when the second bristle group 3 is used for obliquely cleaning the tooth root of the tooth 200, as shown in fig. 10, the high end surface in the inclined end surface 31 of the second bristle group 3 is directly contacted with the tooth root for cleaning the tooth root, and it is noted that in the tooth root cleaning process, the high end surface is used as a main contact surface, the received pressure is larger, the risk that the high end surface bristles are blocked is present, and the bristles of the low end surface in the inclined end surface 31 are received less or no received pressure in the cleaning process, the bristles of the low end surface are easy to swing along with the tooth brushing action, and the swing of the high end surface bristles are driven by the swing of the low end surface bristles, so that the high end surface bristles is beneficial to improving the rigidity of the high end surface, and the swing performance of the high end surface bristles is avoided from being blocked, and thus beneficial to improving the cleaning effect.

In some embodiments of the present utility model, as shown in fig. 1-4 in combination with fig. 11, a first arcuate end surface 22 is formed on a first side of the first tip 21 along a first direction X, and a second arcuate end surface 23 is formed on a second side of the first tip 21.

Specifically, as shown in fig. 11, along the first direction X, the end of the first bristle group 2, which is far away from the brush head body 1, is divided into a first arc end surface 22 and a second arc end surface 23 by taking the first tip 21 as a boundary, it can be understood that the first bristle group 2 is located inside the mounting surface 11 of the brush head body 1, when the brush head 100 is used for cleaning the tooth outer wall of the tooth 200, the first bristle group 2 is mainly used for cleaning the tooth outer wall, further, as shown in fig. 12, when the first bristle group 2 is used for cleaning the tooth outer wall of the tooth 200, the second arc end surface 23 is in direct contact with the tooth outer wall, and the second arc end surface 23 is in arc-shaped design, so that the profile of the tooth outer wall can be fitted well, and the cleaning effect on the tooth outer wall of the tooth 200 can be improved.

It should be noted that, when the first arc end surface 22 and the second arc end surface 23 are lower than the first tip 21, as shown in fig. 6 and 7, when the first tip 21 is used to clean the dead angles such as the pit, the slot, the outer wall of the molar teeth and the like of the tooth 200, the first tip 21 is a main stress point in the cleaning process, in the cleaning process of the tooth 200, the first tip 21 is easy to be blocked and fixed due to excessive stress, by setting the first arc end surface 22 and the second arc end surface 23 lower than the first tip 21, the lengths of bristles at two sides of the first tip 21 are shorter than those at the first tip 21, that is, the lengths of bristles at two sides of the first tip 21 are shorter, when the first tip 21 is used to clean the tooth 200, the shorter bristles of the first arc end surface 22 and the second arc end surface 23 are stressed less or are not stressed, the bristles are easy to swing along with the tooth brushing action, the swing of the short bristles can drive the swing of the first tip 21 to transfer real energy, thereby being favorable for improving the rigidity of the bristles of the first tip 21, increasing the swing performance of the bristles of the first tip 21, and being unfavorable for further cleaning effect.

In some embodiments of the present utility model, as shown in fig. 13, 16 and 17, the first bristle group 2 includes a first bristle tuft 24, the first bristle tuft 24 being located at the head of the first bristle group 2, i.e., the first bristle tuft 24 is located at the foremost position of the entirety of the first bristle group 2, and the end of the first bristle tuft 24 remote from the brush head body 1 has a first tip 21.

Specifically, as shown in fig. 13, the head of the first bristle group 2 is provided with a first bristle cluster 24, the end of the first bristle cluster 24 far away from the brush head body 1 is provided with a first tip 21, and the first tip 21 of the first bristle cluster 24 is used for cleaning dead angles such as a pit, a slot, a molar outer wall and the like of the tooth 200.

In some embodiments of the present utility model, as shown in fig. 17, a first side of the first tip 21 has a first end face configured as a first arcuate end face 22 and a second side of the first tip 21 has a second end face configured as a portion of a second arcuate end face 23 along a first direction X.

Specifically, the two side end surfaces of the first tip 21 of the first bristle cluster 24 are respectively configured as a first arc end surface 22 and a second arc end surface 23, the first arc end surface 22 and the second arc end surface 23 are lower than the first tip 21, the first tip 21 is a main stress point when being used for cleaning the pit, the slot and the outer wall of the molar teeth of the tooth 200, during the cleaning process of the tooth 200, the first tip 21 of the first bristle cluster 24 is easy to be blocked and immobilized due to overlarge stress, the lengths of bristles on two sides of the first tip 21 are shorter than the lengths of bristles on the first tip 21 by arranging the first arc end surface 22 and the second arc end surface 23 which are lower than the first tip 21, when the first tip 21 of the first bristle cluster 24 is used for cleaning the tooth 200, the shorter bristles of the first arc end surface 22 and the second arc end surface 23 are stressed less or are not stressed, the bristles are easy to swing along with the tooth brushing action, the swing of the short swing of the first tip 21 is driven, the swing performance of the first tip 21 is improved, the bristles of the first tip 21 are prevented from being blocked, and the cleaning effect of the bristles of the first bristle cluster 24 is beneficial to being improved.

In some embodiments of the present utility model, as shown in fig. 13 and 14, the first bristle group 2 further includes a plurality of second bristle tufts 25, the first bristle tufts 24 and the plurality of second bristle tufts 25 forming a second arcuate end surface 23 at an end thereof remote from the brush head body 1.

Specifically, the first bristle group 2 includes a plurality of second bristle tufts 25, the number of the second bristle tufts 25 may be 2, 3, 4, 5, etc., which is not limited herein, and as a specific example, as shown in fig. 11, the first bristle group 2 includes 4 second bristle tufts 25, further, as shown in fig. 14, the end of the first bristle tufts 24 and 4 second bristle tufts 25, which are far away from the brush head body 1, forms a second arc-shaped end surface 23, and in this way, as shown in fig. 12, the second arc-shaped end surface 23 formed by the first bristle tufts 24 and the plurality of second bristle tufts 25 may achieve effective cleaning of the tooth outer wall of the tooth 200, and the second arc-shaped end surface 23 may well fit the contour of the tooth outer wall, which is beneficial to improving the cleaning effect of the brush head 100 on the tooth outer wall of the tooth 200.

In some embodiments of the present utility model, as shown in fig. 13 to 15, the end of the second bristle group 3 remote from the brush head body 1 has a second tip 32, and the second tip 32 has a height lower than that of the first tip 21, and the second tip 32 is located at the middle of the second bristle group 3 along the first direction X.

Specifically, the second bristle group 3 is used for cleaning the tooth root of the tooth 200 obliquely, the middle part of the second bristle group 3 is provided with the second tip 32, and the height of the second tip 32 is lower than that of the first tip 21, further, as shown in fig. 13, when the second bristle group 3 cleans the tooth 200, the second tip 32 can obliquely extend into the tooth gap at the tooth root of the adjacent tooth 200, so that the cleaning of the dead angle position of the tooth 200 can be further realized, the cleaning effect of the brush head 100 is improved, and the use experience of a user is facilitated.

In some embodiments of the present utility model, as shown in fig. 13-15, a first side of the second tip 32 is formed with a third arc end surface 33, and a second side of the second tip 32 is formed with a fourth arc end surface 34, and the third arc end surface 33 and the fourth arc end surface 34 are formed as inclined end surfaces 31, along a first direction X.

Specifically, as shown in fig. 14, the inclined end surface 31 of the second bristle group 3 is divided into a third arc end surface 33 and a fourth arc end surface 34 by the second tip 32, when the inclined end surface 31 of the second bristle group 3 is used for cleaning the tooth 200 root, as shown in fig. 15, the third arc end surface 33 and the fourth arc end surface 34 are in direct contact with the tooth 200 root, and the third arc end surface 33 and the fourth arc end surface 34 are arc-shaped, so that the tooth root shapes of two adjacent teeth can be well fitted, thereby being beneficial to improving the cleaning effect of the second bristle group 3 on the tooth root.

In some embodiments of the present utility model, as shown in fig. 13 and 14, the second bristle group 3 includes a third bristle tuft 35 and a plurality of fourth bristle tufts 36, the ends of the third bristle tuft 35 and the plurality of fourth bristle tufts 36 distal from the brush head body 1 forming a third arcuate end surface 33 and a fourth arcuate end surface 34.

Specifically, the second bristle group 3 is composed of a third bristle group 35 and a plurality of fourth bristle groups 36, wherein the number of the fourth bristle groups 36 may be 2, 3, 4, 5, etc., and is not particularly limited herein, and as a specific example, as shown in fig. 13, the second bristle group 3 includes 4 fourth bristle groups 36, further, as shown in fig. 14, the third bristle group 35 and 4 fourth bristle groups 36 are formed to be far away from the end of the brush head body 1 to form a third arc end surface 33 and a fourth arc end surface 34, and as shown in fig. 15, the third bristle groups 35 and the plurality of fourth bristle groups 36 form the third arc end surface 33 and the fourth arc end surface 34, so that effective cleaning of the adjacent two-tooth root can be achieved, and the third arc end surface 33 and the fourth arc end surface 34 can be well fitted to the tooth root shape of the adjacent two-tooth root, which is beneficial to improving the cleaning effect of the second bristle group 3, and at the same time, the second bristle group 3 is arranged to be the third bristle groups 35 and the plurality of fourth bristle groups 36, so that the necessary number of bristles can be reduced on the basis of using the second bristle group 3.

In some embodiments of the present utility model, as shown in fig. 13, 16 and 18, a plurality of fourth bristle tufts 36 are located on either side of the third bristle tuft 35 in the first direction X, the third bristle tuft 35 having a second tip 32.

Specifically, as shown in fig. 13, the third bristle cluster 35 is located at the middle position of the second bristle group 3, 4 fourth bristle clusters 36 are located at both sides of the third bristle cluster 35, and as shown in fig. 16 and 18, the third bristle cluster 35 has a second tip 32, and the second tip 32 of the third bristle cluster 35 can obliquely extend into a slot at the root of the adjacent tooth 200, so that the cleaning of dead angles of the tooth 200 is further realized by the bristle shape of the second tip 32, and the cleaning effect of the third bristle cluster 35 is improved.

In some embodiments of the present utility model, as shown in fig. 1 to 5, the second bristle group 3 is provided at both sides of the first bristle group 2, and the second bristle group 3 located at both sides of the first bristle group 2 is symmetrical with respect to the first bristle group 2. That is, the second bristle groups 3 symmetrical to each other are disposed at both sides of the first bristle group 2, so that the second bristle groups 3 symmetrical to each other can clean the teeth 200 at both sides, that is, the corresponding one side teeth 200 are cleaned through the second bristle group 3 at one side, and the corresponding other side teeth 200 are cleaned through the second bristle group 3 at the other side, thereby ensuring the consistency of the cleaning of the brush head 100 and being beneficial to improving the cleaning effect of the teeth 200.

An electric toothbrush according to an embodiment of the second aspect of the present utility model includes a brush head 100 as in the embodiment of the first aspect.

According to the electric toothbrush provided by the embodiment of the utility model, by arranging the brush head 100, the high-efficiency cleaning of the dead angles of various teeth 200 can be realized in one tooth brushing period, the cleaning force is improved, meanwhile, the brush head 100 can be prevented from being frequently replaced to meet the cleaning requirements of the dead angles of different teeth 200, and the use experience of users is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. A brush head, comprising:

a brush head body;

the brush comprises a brush head body, a first bristle group and a second bristle group, wherein the first bristle group and the second bristle group are fixedly arranged on the mounting surface of the brush head body, the first bristle group is arranged along the first direction of the brush head body and is arranged along the second direction of the brush head body, at least one side of the first bristle group is provided with the second bristle group, the first bristle group is provided with a first pointed end, the first pointed end is positioned at the head of the first bristle group and protrudes out of the end part of the second bristle group away from the brush head body, and the first direction and the second direction are vertical.

2. The brush head of claim 1 wherein the end of the second bristle set remote from the brush head body has an angled end face, the angled end face forming an angle with the mounting surface such that the end of the second bristle set remote from the brush head body has a high end face and a low end face.

3. The brush head of claim 1, wherein a first side of the first tip defines a first arcuate end surface along the first direction.

4. A brush head according to claim 3, wherein a second arcuate end surface is formed on a second side of the first tip in the first direction.

5. The brush head of claim 4 wherein the first bristle group includes a first bristle tuft located at a head of the first bristle group, the end of the first bristle tuft remote from the brush head body having the first tip.

6. The brush head of claim 5, wherein a first side of the first tip has a first end face configured as the first arcuate end face and a second side of the first tip has a second end face configured as part of the second arcuate end face along the first direction.

7. The brush head of claim 5 wherein said first bristle group further comprises a plurality of second bristle tufts, said first bristle tufts and a plurality of said second bristle tufts forming said second arcuate end surface at an end remote from said brush head body.

8. The brush head of claim 2 wherein the end of the second bristle set remote from the brush head body has a second tip, and the second tip is lower in height than the first tip, the second tip being located in a middle of the second bristle set in the first direction.

9. The brush head of claim 8, wherein a first side of the second tip is formed with a third arcuate end surface and a second side of the second tip is formed with a fourth arcuate end surface along the first direction, the third arcuate end surface and the fourth arcuate end surface being formed with the angled end surface.

10. The brush head of claim 9 wherein the second bristle group includes a third bristle tuft and a plurality of fourth bristle tufts, the third bristle tuft and the plurality of fourth bristle tufts forming the third arcuate end surface and the fourth arcuate end surface at an end distal from the brush head body.

11. The brush head of claim 10 wherein a plurality of the fourth bristle tufts are located on either side of the third bristle tuft in the first direction, the third bristle tuft having the second tips.

12. The brush head of claim 9 wherein said second bristle set is disposed on both sides of said first bristle set and said second bristle set on both sides of said first bristle set is symmetrical about said first bristle set.

13. An electric toothbrush comprising a brush head according to any one of claims 1-12.