Electric toothbrush head and electric toothbrush

Abstract

The utility model discloses an electric toothbrush head and an electric toothbrush. The electric toothbrush head comprises bristles, a brush plate and a deformation part. The brush plate comprises a first surface and a second surface which are opposite to each other in the thickness direction, and a peripheral side surface which is respectively connected with the first surface and the second surface, the brush plate is provided with bristle planting holes, and the bristles are arranged in the bristle planting holes and extend out of the first surface. The brush plate further comprises a plurality of bristle planting parts and connecting parts, a gap is formed between every two adjacent bristle planting parts, and at least part of the connecting parts are arranged in the gaps and used for connecting the adjacent bristle planting parts. The deformation part wraps the second face and the peripheral side face, and the deformation part is further filled in the interval and wraps the connecting part. The deformation part is of a soft rubber structure formed on the brush plate, can fill gaps between the bristle planting parts of the brush plate and wraps the second face and the peripheral side face of the brush plate, and therefore the deformation part is not prone to falling off from the brush plate.

Description

Technical Field

[0001] The present application relates to the field of cleaning technology, and more specifically, to an electric toothbrush head and an electric toothbrush. Background Art

[0002] An electric toothbrush is an electronic device that can clean the oral cavity. When the electric toothbrush is working, the brush handle drives the electric toothbrush head to vibrate to clean the surface and gaps of the teeth. The electric toothbrush heads of current electric toothbrushes are mostly covered with a soft rubber structure to prevent the electric toothbrush head from colliding with the teeth. The soft rubber structure is usually covered on the surface of the brush plate, and the soft rubber structure is easy to fall off the brush plate. Utility Model Content

[0003] The embodiments of the present application provide an electric toothbrush head and an electric toothbrush, which are at least used to solve the problem that the soft rubber structure of the electric toothbrush head is easy to fall off.

[0004] The electric toothbrush head of the embodiment of the present application includes bristles, a brush plate and a deformation part. The brush plate includes a first surface and a second surface opposite to each other in the thickness direction, and a peripheral side surface respectively connected to the first surface and the second surface, and the brush plate is provided with a hair planting hole, and the bristles are arranged in the hair planting hole and extend from the first surface. The brush plate also includes a plurality of hair planting parts and a connecting part, and a gap is formed between adjacent hair planting parts, and at least part of the connecting part is arranged in the gap and used to connect adjacent hair planting parts. The deformation part is coated on the second surface and the peripheral side surface, and the deformation part also fills the gap and wraps the connecting part.

[0005] The deformation part is a soft rubber structure formed on the brush plate. The deformation part can fill the gap between the bristle parts of the brush plate and cover the second surface and the peripheral side surface of the brush plate. Therefore, the deformation part is not easy to fall off the brush plate, and the deformation part is embedded in the brush plate, which further improves the soft rubber shock-absorbing effect of the brush plate.

[0006] In some embodiments, the first surface is convex relative to the deformation portion.

[0007] The deformation part can be formed on the surface of the brush plate by hot-melting the soft rubber material and then solidifying it. When the first surface is protruding compared to the deformation part, the soft rubber material in a fluid state will not enter the bristle implanting holes provided on the first surface of the brush plate, thereby avoiding difficulty in installing the bristles in the bristle implanting holes.

[0008] In certain embodiments, the peripheral side surface includes an inclined surface segment located outside the deformation portion; the angle between the inclined surface segment and the thickness direction of the electric toothbrush head is in the range of [20°, 30°].

[0009] When the deformation part is wrapped around the brush plate, the brush plate needs to be placed in the mold to contact the soft rubber material in a fluid state. When the circumferential side surface is provided with an inclined surface section, there will be no collision between the brush plate and the mold, and the brush plate can be more easily removed from the mold.

[0010] In some embodiments, the deformation portion includes a first side and a second side opposite to each other, the first side faces the first surface, and the first side of the deformation portion is provided with a curved surface, and the curved surface is connected to the inclined surface segment.

[0011] When a curved surface is provided on the side of the deformation part facing the bristles, the curved surface of the deformation part can contact the part to be cared for (i.e. structures in the oral cavity such as teeth) to avoid friction between the edge of the deformation part in contact with the peripheral side wall of the brush plate and the part to be cared for, causing the deformation part to fall off the brush plate.

[0012] In some embodiments, in the thickness direction of the electric toothbrush head, the depth of the hair implantation hole is greater than or equal to 3.5 mm. The distance between the bottom wall of the hair implantation hole and the second surface of the brush plate is greater than or equal to 0.8 mm.

[0013] The bristle holes can be used for injection molding to form bristles. When the depth of the bristle holes is less than 3.5mm, the contact area at the connection between the bristles and the brush plate is too small. On the one hand, the bristles are difficult to be injection molded into the bristle holes, and on the other hand, the bristles are easy to fall off from the bristle holes. When the depth of the bristle holes is greater than or equal to 3.5mm, the connection between the bristles and the brush plate is relatively stable and not easy to fall off. When the distance between the bottom wall of the bristle holes and the second surface of the brush plate is less than 0.8mm, the thickness of the brush plate at the position corresponding to the bristle holes is too thin, the bristles are difficult to fix on the brush plate, and the brush plate is easy to break during processing. When the distance between the bottom wall of the bristle holes and the second surface of the brush plate is greater than or equal to 0.8mm, the connection depth between the brush plate and the bristles is moderate, the bristles will not fall off the brush plate, and the brush plate will not be damaged.

[0014] In some embodiments, the wall thickness of the hair implantation hole is greater than or equal to 0.8 mm.

[0015] When the wall thickness of the implanting hole is less than 0.8mm, the distance between the inner wall of the implanting hole and the outer wall of the implanting sheet is too small, and the side wall of the implanting hole is prone to holes or grooves, making it difficult for the bristles to be installed in the implanting hole. When the wall thickness of the implanting hole is greater than or equal to 0.8mm, the side wall thickness of the implanting hole is moderate, and it is not easy to form holes or grooves during the manufacturing process, and the bristles are easily formed in the implanting hole or installed in the implanting hole.

[0016] In some embodiments, the hair implanting part includes a plurality of hair implanting sheets, each of which is provided with the hair implanting holes, and gaps are formed between adjacent hair implanting sheets. The deformation part is used to wrap the bottom and sidewall of each hair implanting sheet and fill the gaps between adjacent hair implanting sheets.

[0017] The hair-planting sheet is a structure for connecting with the bristles, and each hair-planting sheet corresponds to a hair-planting hole and the bristles arranged in the hair-planting hole. A plurality of hair-planting sheets spaced apart from each other can form a hair-planting section together. The deformation section can fill the intervals between the plurality of hair-planting sections, and can also fill the gaps between the plurality of hair-planting sheets in each hair-planting section, so that each hair-planting sheet is connected to the deformation section.

[0018] In certain embodiments, along the thickness direction of the electric toothbrush head, the thickness of the connecting portion is smaller than the thickness of the hair-implanting portion, so that the deformation portion fills between adjacent hair-implanting portions and covers the connecting portion.

[0019] In the case where the thickness of the connecting portion is less than that of the hair-planting portion, the connecting portion is more easily deformed under stress than the hair-planting portion. In the case where adjacent hair-planting portions are spaced apart from each other, the hair-planting portions can move closer to and / or farther away from each other when the connecting portion is deformed under stress, so that the bristles on the hair-planting portions move to different positions, thereby improving the cleaning effect of the electric toothbrush head. The two opposite sides of the connecting portion along the thickness direction of the electric toothbrush head will face the gap between the hair-planting portions, and the deformable portion used for protection and filling can fill the gap between the hair-planting portions and wrap the opposite sides of the connecting portion to protect the connecting portion and prevent the connecting portion from breaking.

[0020] In some embodiments, in the thickness direction of the electric toothbrush head, the surface of the connecting portion away from the bristles is flush with the second surface. The thickness of the connecting portion is greater than or equal to 1 mm.

[0021] When the surface of the connecting portion facing the supporting portion is flush with the surface where the second side of the implanted hair portion is located, the side of the connecting portion facing the bristles is located in the gap between adjacent implanted hair portions. When the bristles are subjected to force, the bristles transfer the force to the implanted hair portion. At this time, the implanted hair portion can only push the connecting portion to bend toward the side away from the bristles, but cannot bend toward the side close to the bristles. The bristles can better wrap the care portion and achieve a better cleaning effect. When the thickness of the connecting portion is less than 1 mm, the connecting portion is too thin and is prone to breakage when subjected to force. When the thickness of the connecting portion is greater than or equal to 1 mm, the thickness of the connecting portion is moderate and can be deformed when subjected to force.

[0022] In some embodiments, the electric toothbrush head further comprises a supporting portion and a mounting portion. The supporting portion is disposed on the second surface. One end of the supporting portion is connected to the hair implanting portion and / or the connecting portion, and the other end of the supporting portion is connected to the mounting portion.

[0023] When the support part is connected to the connecting part, when the connecting part is deformed, the support part can support the side of the connecting part away from the bristles to improve the strength of the connecting part and avoid the connection part from breaking. In addition, when the support part is connected to the connecting part and the bristle-planting part at the same time, the contact area between the support part, the connecting part and the bristle-planting part is large, the connection between the three is stable, and the electric toothbrush head is not easily damaged.

[0024] In some embodiments, a gap is provided between the mounting portion and the hair-implanting portion. The deformable portion is combined with at least one of the hair-implanting portion, the connecting portion, the supporting portion and the mounting portion to form at least one of the following connections: the deformable portion wraps around the bottom and side of the hair-implanting portion. The deformable portion covers the mounting portion. The deformable portion fills the gap between the mounting portion and the hair-implanting portion and the deformable portion fills the gap between adjacent hair-implanting portions and wraps around the bottom and side of the connecting portion.

[0025] The deformable portion can be used to wrap the hair-planting portion to avoid collision between the hair-planting portion and the portion to be cared for. The two opposite sides of the connecting portion along the thickness direction of the electric toothbrush head will face the gap between the hair-planting portions. The deformable portion used for protection and filling can fill the gap between the hair-planting portions and wrap the opposite sides of the connecting portion to protect the connecting portion and avoid breakage of the connecting portion. The mounting portion is a structure that can connect the handle of the electric toothbrush and transmit vibrations. In the case where a gap is provided between the mounting portion and the hair-planting portion, when the deformation of the connecting portion causes the size of the gap between adjacent hair-planting portions to change, the gap between the mounting portion and the hair-planting portion can provide space for the hair-planting portion to move, so that the bristles on the hair-planting portion can move relative to the mounting portion. The deformable portion used for protection and filling can fill the gap between the mounting portion and the hair-planting portion and support the connecting portion to avoid excessive force on the hair-planting portion causing the connecting portion to break.

[0026] In some embodiments, in the width direction of the electric toothbrush head, the width of the support portion and / or the mounting portion is smaller than the width of the brush plate.

[0027] The deformation part can cover the supporting part, the mounting part, the connecting part and the hair-planting part, and when the width of the supporting part and / or the mounting part is smaller than the width of the brush plate, if the outer contour of the deformation part is relatively smooth, then in the width direction of the electric toothbrush head, the thickness of the deformation part corresponding to and in contact with the supporting part and / or the mounting part will be smaller than the thickness of the deformation part corresponding to and directly in contact with the bottom of the hair-planting part. At this time, the thickness of the deformation part directly in contact with the hair-planting part is larger, and the thickness of the deformation part corresponding to and in contact with the corners of the peripheral side of the brush plate is also larger, and the deformation part has a better shock-absorbing effect on the brush plate.

[0028] In some embodiments, in the width direction of the electric toothbrush head, the width of the support portion is less than or equal to the width of the mounting portion.

[0029] When the width of the support portion is less than or equal to the width of the mounting portion, along the width direction of the electric toothbrush head, the projection formed by the support portion onto the brush plate is completely within the projection formed by the mounting portion onto the brush plate. At this time, on the cross section formed along the width direction of the electric toothbrush head, the outer contour width of the support portion is less than or equal to the outer contour width of the mounting portion. Along the width direction of the electric toothbrush head, the portion of the mounting portion directly corresponding to the brush plate can be filled with the deformable portion, and the thickness of the deformable portion corresponding to the portion of the mounting portion directly corresponding to the brush plate is greater than the thickness of the deformable portion corresponding to the portion of the support portion directly corresponding to the brush plate. Compared with the solution in which the width of the support portion is greater than the width of the mounting portion, the contact area between the deformable portion and the brush plate, the support portion and the mounting portion is larger, and the combination is tighter, so the deformable portion is less likely to fall off the brush plate.

[0030] In some embodiments, the supporting part comprises a plurality of supporting parts, and the plurality of supporting parts are arranged in sequence in the length direction of the electric toothbrush head. In the length direction of the electric toothbrush head, the mounting part is connected to at least the supporting part closest to the side edge of the brush plate.

[0031] Each support portion can be connected to at least one bristle-planting portion and / or connecting portion to support the bristle-planting portion and / or connecting portion. When the mounting portion is connected to the support portion closest to the side edge of the brush plate, the brush plate can be partially offset from the mounting portion along the length direction of the electric toothbrush head, and the brush plate partially offset from the mounting portion can be used to contact with an external support structure to support the brush plate during the process of installing or forming bristles.

[0032] In certain embodiments, the brush plate has a central axis along the length direction of the electric toothbrush head, the peripheral side surface includes a plurality of discontinuous sub-side surfaces, and the distances of the plurality of sub-side surfaces from the central axis are at least partially different. In the width direction of the electric toothbrush head, the width of the deformation portion filled in the gap is greater than the width of the deformation portion wrapped in the sub-side surface.

[0033] Since the peripheral side surface formed by multiple discontinuous sub-side surfaces has multiple depressions and multiple protrusions, each protrusion corresponds to a sub-side surface, and each depression corresponds to a gap between adjacent hair-planting portions or a gap between adjacent hair-planting sheets. In the case where the deformation portion covers the peripheral side surface, the deformation portion can fill multiple depressions and cover the surfaces of multiple protrusions. Along the width direction of the electric toothbrush head, when the outer contour edge of the deformation portion is smooth, the thickness between the outer contour of the deformation portion and the multiple sub-side surfaces will be smaller than the thickness between the outer contour of the deformation portion and the depressions. Therefore, when the brush plate vibrates, the thicker portion of the deformation portion can more effectively buffer the vibration.

[0034] The electric toothbrush of the embodiment of the present application comprises the electric toothbrush head and the brush handle as described in any one of the above embodiments, and the electric toothbrush head is installed on the brush handle.

[0035] The deformation part is a soft rubber structure formed on the brush plate. The deformation part can fill the gaps between the bristle parts of the brush plate and cover the second surface and the peripheral side surface of the brush plate. Therefore, the deformation part is not easy to fall off the brush plate, and there is no obvious boundary between the deformation part and the brush plate, so dirt is not easy to form.

[0036] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0038] Figure 1 is a three-dimensional schematic diagram of an electric toothbrush head according to certain embodiments of the present application;

[0039] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a partial structure of an electric toothbrush head shown;

[0040] Figure 3 is an exploded schematic diagram of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0041] Figure 4 is a schematic cross-sectional view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0042] Figure 5 is a schematic plan view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0043] Figure 6 is a schematic cross-sectional view of a partial structure of an electric toothbrush head according to other embodiments of the present application;

[0044] Figure 7 is a schematic cross-sectional view of a partial structure of an electric toothbrush head according to some other embodiments of the present application;

[0045] Figure 8 is a schematic plan view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0046] Fig. 9 is a schematic plan view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0047] Fig.10It is a three-dimensional schematic diagram of an electric toothbrush according to certain embodiments of the present application.

[0048] Description of main component symbols:

[0049] 1000, electric toothbrush; 100, electric toothbrush head; 300, brush handle; 10, brush body; 30, rod body; X, length direction; Y, width direction; Z, thickness direction; A, central axis; H1, depth of hair implantation hole; H2, distance between the bottom wall of hair implantation hole and the second surface of brush plate; H3, wall thickness of hair implantation hole; H4, thickness of connecting part; H5, thickness of hair implantation part; D1, width of supporting part; D2, width of mounting part; D3, width of brush plate; L1, distance between sub-side surface and central axis; L2, the width of the deformation part filled in the gap; L3, the width of the deformation part wrapped in the sub-side surface; 11, brush plate; 1101, bristles; 101, first side; 102, second side; 103, peripheral side surface; 1031, inclined surface section; 1033, sub-side surface; 104, gap; 111, hair implantation part; 1111, hair implantation sheet; 113, connecting part; 115, hair implantation hole; 13, deformation part; 131, first side; 133, second side; 135, arc surface; 15, supporting part; 17, mounting part. DETAILED DESCRIPTION

[0050] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and cannot be understood as limiting the embodiments of the present application.

[0051] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0052] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. In an example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be a mechanical connection, or an electrical connection, or they can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements.

[0053] See also Figures 1 to 3 The electric toothbrush head 100 of the present application includes bristles 1101, a brush plate 11 and a deformation portion 13. The brush plate 11 includes a first surface 101 and a second surface 102 opposite to each other in the thickness direction Z, and a peripheral side surface 103 respectively connected to the first surface 101 and the second surface 102. The brush plate 11 is provided with a hair planting hole 115, and the bristles 1101 are arranged in the hair planting hole 115 and extend from the first surface 101. The brush plate 11 also includes a plurality of hair planting portions 111 and a connecting portion 113, and intervals 104 are formed between adjacent hair planting portions 111. At least part of the connecting portion 113 is arranged in the interval 104 and is used to connect adjacent hair planting portions 111. The deformation portion 13 is coated on the second surface 102 and the peripheral side surface 103, and the deformation portion 13 is also filled in the interval 104 and wraps the connecting portion 113.

[0054] Among them, the bristles 1101 are structures for cleaning and / or caring for teeth, gums or the inner wall of the oral cavity waiting for care. Each bristle 1101 may include multiple brush filaments. The materials of the bristles 1101 include but are not limited to nylon, polyamide or silicone. In the case where the material of the bristles 1101 is a hard material such as nylon or polyamide, the free end of the bristles 1101 can contact the tooth surface and clean the teeth and the gaps between the teeth. In the case where the material of the bristles 1101 is a flexible material such as silicone, the free end of the bristles 1101 can contact the tooth surface to perform polishing-like care on the tooth surface, and the free end of the bristles 1101 can also be used to clean the gums or the inner wall of the oral cavity, which are easily damaged, so that the cleaning effect of the electric toothbrush head 100 is better without causing damage to the user.

[0055] In the electric toothbrush head 100 of the present application, the deformation part 13 is a soft rubber structure formed on the brush plate 11. The deformation part 13 can fill the gap between the hair-planting parts 111 of the brush plate 11, and cover the second surface 102 and the surrounding side surface 103 of the brush plate 11. Therefore, the deformation part 13 is not easy to fall off from the brush plate 11, and there is no obvious boundary between the deformation part 13 and the brush plate 11, so it is not easy to form dirt.

[0056] The electric toothbrush head 100 is further described below with reference to the accompanying drawings.

[0057] See also Figures 1 to 3In some embodiments, the electric toothbrush head 100 includes a brush body 10 and a rod body 30 connected to each other. The bristles 1101, the brush plate 11 and the deformation part 13 are all partial structures of the brush body 10. The brush plate 11 is roughly a plate-like structure, and the rod body 30 is roughly a columnar structure. The shape of the cross section of the rod body 30 includes but is not limited to a perfect circle, an ellipse or a polygon. The rod body 30 is connected to the brush plate 11. In some embodiments, the rod body 30 and the brush plate 11 are integrally formed. The materials of the rod body 30 and the brush plate 11 can be the same or different, which is not limited here. In other embodiments, the rod body 30 and the brush plate 11 are separately formed, and the rod body 30 and the brush plate 11 can be connected by a non-detachable method such as gluing, hot-melt connection or interference connection, or can be connected by a detachable method such as snap connection, threaded connection or bolt connection, which is not limited here. The length direction X of the electric toothbrush head 100 can be either the direction from the brush plate 11 to the rod body 30 or the direction from the rod body 30 to the brush plate 11. Along the length direction X of the electric toothbrush head 100, the brush plate 11 includes a first end and a second end opposite to each other. The first end of the brush plate 11 is away from the rod body 30, and the second end of the brush plate 11 is close to the rod body 30. The width direction Y of the electric toothbrush head 100 is perpendicular to the length direction X of the electric toothbrush head 100. Along the width direction Y of the electric toothbrush head 100, the brush plate 11 includes a first side and a second side opposite to each other, and both the first side and the second side are part of the peripheral side surface 103 of the brush plate 11. The thickness direction Z of the electric toothbrush head 100 is perpendicular to both the length direction X of the electric toothbrush head 100 and the width direction Y of the electric toothbrush head 100. The thickness direction Z of the electric toothbrush head 100 can be the direction from the first surface 101 of the brush plate 11 to the second surface 102 of the brush plate 11, or the direction from the second surface 102 of the brush plate 11 to the first surface 101 of the brush plate 11. The brush plate 11 has a central axis A passing through the geometric center of the brush plate 11, and the direction of the central axis A of the brush plate 11 is parallel to the length direction X of the electric toothbrush head 100.

[0058] See also Figures 2 to 4 In some embodiments, the implanted hair portion 111 is a structure that can be connected to the bristles 1101. In some embodiments, the implanted hair portion 111 and the bristles 1101 are integrally formed. In other embodiments, the implanted hair portion 111 and the bristles 1101 are separately formed. One end of the bristles 1101 extends into the implanted hair portion 111 and is installed on the implanted hair portion 111, and the other end of the bristles 1101 is a free end located on the side where the first surface 101 of the brush plate 11 is located. The extension direction of the bristles 1101 can be parallel to the thickness direction Z of the electric toothbrush head 100, and can also be inclined relative to the thickness direction Z of the electric toothbrush head 100, which is not limited here.

[0059] Specifically, please combine Figure 5In some embodiments, the hair-planting portion 111 includes a plurality of hair-planting sheets 1111. The hair-planting sheets 1111 are structures for connecting with the bristles 1101. Each hair-planting sheet 1111 is roughly a block structure. On a certain cross section formed along the width direction Y of the electric toothbrush head 100, the outer contour shape of the cross section of each hair-planting sheet 1111 can be the same or different, and there is no limitation here. Hair-planting holes 115 are provided on each hair-planting sheet 1111, and bristles 1101 are provided in the hair-planting holes 115 corresponding to each hair-planting sheet 1111. Gaps are formed between adjacent hair-planting sheets 1111, and the connecting portion 113 can also connect adjacent hair-planting sheets 1111. When the hair-planting portion 111 is subjected to force, the connecting portion 113 is subjected to force and bends, so that the spacing between each adjacent hair-planting sheet 1111 will also change. The deformation part 13 can fill the gap between adjacent hair-planting pieces 1111 and support each hair-planting piece 1111 and the connection part 113 between each adjacent hair-planting piece 1111. Each hair-planting piece 1111 can be connected to the deformation part 13, and when the deformation part 13 wraps the bottom and side wall of each hair-planting piece 1111 and fills the gap between adjacent hair-planting pieces 1111, the surface of the electric toothbrush head 100 is prevented from being uneven, and dirt can also be prevented from remaining on the electric toothbrush head 100, which affects the normal use of the electric toothbrush head 100.

[0060] More specifically, in some embodiments, in the thickness direction Z of the electric toothbrush head 100, the depth H1 of the bristle hole 115 is greater than or equal to 3.5 mm, and can be 3.5 mm, 4.0 mm, 4.5 mm or others, for example. The bristle hole 115 can be used for injection molding to form the bristles 1101 or to connect the formed bristles 1101. When the depth H1 of the bristle hole 115 is less than 3.5 mm, the contact area at the connection between the bristles 1101 and the brush plate 11 is too small. On the one hand, the bristles 1101 are difficult to be injection molded into the bristle hole 115, and on the other hand, the bristles 1101 are also easy to fall off from the bristle hole 115. When the depth H1 of the bristle hole 115 is greater than or equal to 3.5 mm, the connection between the bristles 1101 and the brush plate 11 is relatively stable and not easy to fall off.

[0061] More specifically, in some embodiments, the distance H2 between the bottom wall of the bristle hole 115 and the second surface 102 of the brush plate 11 is greater than or equal to 0.8 mm, and can be 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.5 mm, etc. The distance H2 between the bottom wall of the bristle hole 115 and the second surface 102 of the brush plate 11 is the thickness of the brush plate 11 at the position corresponding to the bristle hole 115. In the case where the distance H2 between the bottom wall of the bristle hole 115 and the second surface 102 of the brush plate 11 is less than 0.8 mm, the thickness of the brush plate 11 at the position corresponding to the bristle hole 115 is too thin, the bristles 1101 are difficult to fix on the brush plate 11, and the brush plate 11 is prone to breakage during processing. When the distance H2 between the bottom wall of the implanting hole 115 and the second surface 102 of the brush plate 11 is greater than or equal to 0.8 mm, the connection depth between the brush plate 11 and the bristles 1101 is moderate, the bristles 1101 will not fall off the brush plate 11, and the brush plate 11 will not be damaged.

[0062] Specifically, in some embodiments, the wall thickness H3 of the implanting hole 115 is greater than or equal to 0.8 mm, and can be 0.8 mm, 0.9 mm, 1.0 mm, 1.2 mm, 1.5 mm, etc. The wall thickness H3 of the implanting hole 115 is the distance between the inner wall of the implanting hole 115 and the outer wall of the implanting sheet 1111 provided with the implanting hole 115. When the wall thickness H3 of the implanting hole 115 is less than 0.8 mm, the distance between the inner wall of the implanting hole 115 and the outer wall of the implanting sheet 1111 is too small, so that the side wall of the implanting hole 115 is prone to form a hole or groove, which makes it difficult for the bristles 1101 to be installed in the implanting hole 115. When the wall thickness H3 of the hair transplanting hole 115 is greater than or equal to 0.8 mm, the side wall thickness of the hair transplanting hole 115 is moderate, and it is not easy to form holes or grooves during the manufacturing process. The bristles 1101 are easily formed in the hair transplanting hole 115 or installed in the hair transplanting hole 115.

[0063] Please refer to the figures and the figures. In some embodiments, the connecting portion 113 is a structure capable of connecting at least two mutually spaced hair-planting portions 111 104 apart. The connecting portion 113 is generally a plate-like structure with a small thickness and easily bent and deformed by force. When a user uses the electric toothbrush head 100, the user will apply external force to the bristles 1101. At this time, the bristles 1101 will be compressed and bent on the one hand, and on the other hand, the external force will be transmitted to the hair-planting portion 111 connected to the bristles 1101. Since only the connecting portion 113 is connected between adjacent hair-planting portions 111, when the hair-planting portions 111 are subjected to force, the connecting portion 113 will bend and deform along the thickness direction Z of the electric toothbrush head 100 under the action of external force. At this time, the size of the gap between adjacent hair-planting portions 111 will change, so that the brush plate 11 will be deformed. When the deformation portion 13 fills the gap between adjacent hair-planted portions 111 and wraps the connecting portion 113, the hair-planted portion 111 and the connecting portion 113 will both squeeze the deformation portion 13 to partially deform the deformation portion 13, and the squeezed deformation portion 13 can also provide support for the hair-planted portion 111 and the connecting portion 113 to reduce damage to the hair-planted portion 111 and the connecting portion 113 during use, and the electric toothbrush head 100 can be more durable.

[0064] Specifically, please combine Figure 7 , along the thickness direction Z of the electric toothbrush head 100, the thickness H4 of the connecting portion 113 is less than the thickness H5 of the hair-planting portion 111, so that the deformation portion 13 fills between adjacent hair-planting portions 111 and covers the connecting portion 113. The thickness of the connecting portion 113 refers to the distance between the two opposite sides of the connecting portion 113 along the thickness direction Z of the electric toothbrush head 100. The thickness of the hair-planting portion 111 refers to the distance between the two opposite sides of the hair-planting portion 111 along the thickness direction Z of the electric toothbrush head 100 (that is, the distance between the first surface 101 of the brush plate 11 and the second surface 102 of the brush plate 11 along the thickness direction Z of the electric toothbrush head 100). When the thickness H4 of the connecting portion 113 is less than the thickness H5 of the hair-planting portion 111, the connecting portion 113 is more easily deformed under force than the hair-planting portion 111. When adjacent hair-planting portions 111 are spaced 104 apart from each other, the hair-planting portions 111 can move closer to and / or farther away from each other when the connecting portion 113 is deformed by force, so that the bristles 1101 on the hair-planting portions 111 move to different positions, thereby improving the cleaning effect of the electric toothbrush head 100. The two opposite sides of the connecting portion 113 along the thickness direction Z of the electric toothbrush head 100 will face the gap between the hair-planting portions 111, and the deformable portion 13 can fill the gap between the hair-planting portions 111 and wrap the opposite sides of the connecting portion 113 to protect the connecting portion 113 and prevent the connecting portion 113 from breaking.

[0065] More specifically, please combine Figure 6In some embodiments, in the thickness direction Z of the electric toothbrush head 100, the surface of the connecting portion 113 away from the bristles 1101 is flush with the second surface 102. The thickness H4 of the connecting portion 113 is greater than or equal to 1 mm. In the case where the surface of the connecting portion 113 facing the support portion 15 is flush with the surface where the second side 133 of the hair-planting portion 111 is located, the side of the connecting portion 113 facing the bristles 1101 is located in the gap between adjacent hair-planting portions 111. When the bristles 1101 are subjected to force, the bristles 1101 transfer the force to the hair-planting portion 111. At this time, the hair-planting portion 111 can only push the connecting portion 113 to bend toward the side away from the bristles 1101, but cannot bend toward the side close to the bristles 1101. The bristles 1101 have better wrapping properties for the care portion and a better cleaning effect. In the case where the thickness H4 of the connecting portion 113 is less than 1 mm, the connecting portion 113 is too thin and is easy to break when subjected to force. When the thickness H4 of the connection portion 113 is greater than or equal to 1 mm, the thickness H4 of the connection portion 113 is moderate and can be deformed when subjected to force.

[0066] More specifically, please combine Fig. 9 In some embodiments, the brush plate 11 has a central axis A along the length direction X of the electric toothbrush head 100, and the peripheral side surface 103 includes a plurality of discontinuous sub-side surfaces 1033, and the sub-side surface 1033 is the side surface of each hair-planting sheet 1111 that is not opposite to other hair-planting sheets 1111. The peripheral side surface 103 formed by the plurality of discontinuous sub-side surfaces 1033 has a plurality of depressions and a plurality of protrusions, and each protrusion corresponds to a sub-side surface 1033, and each depression corresponds to a spacing 104 between adjacent hair-planting portions 111 or a gap between adjacent hair-planting sheets 1111. Since each hair-planting sheet 1111 is disposed at a different position, the distances L1 of the plurality of sub-side surfaces 1033 from the central axis A are at least partially different. In the case where the deformation portion 13 covers the peripheral side surface 103, the deformation portion 13 can fill the plurality of depressions and cover the surfaces of the plurality of protrusions. Along the width direction Y of the electric toothbrush head 100, when the outer contour edge of the deformation part 13 is smooth, in the width direction Y of the electric toothbrush head 100, the width L2 of the deformation part 13 filled in the gap 104 is greater than the width L3 of the deformation part 13 wrapped in the sub-side surface 1033, that is: in the width direction Y of the electric toothbrush head 100, the thickness between the outer contour of the deformation part 13 and multiple sub-side surfaces 1033 will be smaller than the thickness between the outer contour of the deformation part 13 and the depression. Therefore, when the brush plate 11 vibrates, the thicker part of the deformation part 13 can more effectively buffer the vibration.

[0067] See also Figure 3 and Figure 4In some embodiments, the deformable portion 13 is roughly a flexible structure capable of covering the brush plate 11, and the material of the deformable portion 13 includes but is not limited to silicone, rubber or soft plastic. Along the thickness direction Z of the electric toothbrush head 100, the deformable portion 13 includes a first side 131 and a second side 133 opposite to each other, the first side 131 faces the first surface 101 of the brush plate 11, and the second side 133 faces the second surface 102 of the brush plate 11. The deformable portion 13 can cover the second surface 102 of the brush plate 11 and the peripheral side wall of the brush plate 11 so that the position where the electric toothbrush head 100 contacts the part to be cared for is provided with a flexible structure to avoid collision between the brush plate 11 and the part to be cared for. The deformable portion 13 can also wrap the connecting portion 113 and fill the gap 104 formed between adjacent hair-planting portions 111, so that the adjacent hair-planting portions 111 and the connecting portion 113 have flexible support to enhance the overall shock-absorbing effect.

[0068] Furthermore, please combine Figure 1 and 5 In some embodiments, the first surface 101 of the brush plate 11 is protruding compared to the deformation part 13, that is, along the thickness direction Z of the electric toothbrush head 100, the first side 131 of the deformation part 13 is lower than the first surface 101 of the brush plate 11. Since the deformation part 13 can be formed on the surface of the brush plate 11 by hot-melting the soft rubber material and then solidifying it again, when the first surface 101 is protruding compared to the deformation part 13, the soft rubber material in a fluid state will not enter the hair planting hole 115 provided on the first surface 101 of the brush plate 11, avoiding the difficulty of installing the bristles 1101 in the hair planting hole 115.

[0069] Furthermore, in some embodiments, the peripheral side surface 103 includes an inclined surface section 1031 located outside the deformation portion 13. In the process of the deformation portion 13 covering the brush plate 11, the brush plate 11 needs to be placed in the mold to contact the soft rubber material in a fluid state. In the case where the peripheral side surface 103 is provided with the inclined surface section 1031, there will be no collision between the brush plate 11 and the mold, and the brush plate 11 can be more easily removed from the mold.

[0070] Specifically, in some embodiments, the angle between the bevel segment 1031 and the thickness direction Z of the electric toothbrush head 100 is in the range of [20°, 30°]. When the angle between the bevel segment 1031 and the thickness direction Z of the electric toothbrush head 100 is less than 20°, the inclination angle formed by the bevel segment 1031 is too small, and there is still a risk of collision with the mold when the brush plate 11 is placed into the mold. When the angle between the bevel segment 1031 and the thickness direction Z of the electric toothbrush head 100 is greater than 30°, the inclination angle formed by the bevel segment 1031 is too large, so that the surface area of ​​the first surface 101 of the brush plate 11 differs too much from the surface area of ​​the second surface 102 of the brush plate 11, which affects the formation and / or installation of the bristles 1101 on the one hand, and also affects the aesthetics of the electric toothbrush head 100 on the other hand. Therefore, when the angle between the inclined surface section 1031 and the thickness direction Z of the electric toothbrush head 100 is in the range of [20°, 30°], no collision will occur between the brush plate 11 and the mold, and the bristles 1101 can be smoothly formed and / or installed on the first surface 101 of the brush plate 11.

[0071] Furthermore, in some embodiments, the first side 131 of the deformable portion 13 is provided with an arc surface 135, and the arc surface 135 is connected to the inclined surface section 1031. In the case where the arc surface 135 is provided on the side of the deformable portion 13 facing the bristles 1101, the arc surface 135 of the deformable portion 13 can contact the part to be cared for (i.e., the structure in the oral cavity such as teeth), so as to avoid the deformation portion 13 falling off the brush plate 11 due to friction between the edge of the deformable portion 13 contacting the peripheral side wall of the brush plate 11 and the part to be cared for.

[0072] See also Figure 3 and Figure 4 , and combined with Figure 2In some embodiments, the electric toothbrush head 100 may further include a support portion 15 and a mounting portion 17. The support portion 15 is a partial structure for connecting the brush plate 11 and the mounting portion 17. The support portion 15 is disposed on the second surface 102 of the brush plate 11. One end of the support portion 15 is connected to the bristle-planting portion 111 and / or the connecting portion 113, and the other end of the support portion 15 is connected to the mounting portion 17. When the support portion 15 is connected to the connecting portion 113, when the connecting portion 113 is deformed, the support portion 15 can support the side of the connecting portion 113 away from the bristles 1101 to improve the strength of the connecting portion 113 and prevent the connecting portion 113 from breaking. In addition, when the support portion 15 is connected to the connecting portion 113 and the bristle-planting portion 111 at the same time, the contact area between the support portion 15 and the connecting portion 113 and the bristle-planting portion 111 is large, the connection between the three is stable, and the electric toothbrush head 100 is not easily damaged. The mounting portion 17 is a structure that can connect to the handle 300 of the electric toothbrush 1000 and transmit vibrations. The mounting portion 17 can be used to connect the brush body 10 and the rod body 30. In the case where a gap is provided between the mounting portion 17 and the hair-planting portion 111, when the connecting portion 113 is deformed to cause the size of the gap between adjacent hair-planting portions 111 to change, the gap between the mounting portion 17 and the hair-planting portion 111 can provide space for the hair-planting portion 111 to move, so that the bristles 1101 on the hair-planting portion 111 can move relative to the mounting portion 17. The deformable portion 13 used for protection and filling can fill the gap between the mounting portion 17 and the hair-planting portion 111 and support the connecting portion 113 to prevent the hair-planting portion 111 from being subjected to excessive force and causing the connecting portion 113 to break.

[0073] Further, in some embodiments, the support portion 15 can support the brush plate 11 and form a gap between the second surface 102 of the brush plate 11 and the mounting portion 17, and the deformation portion 13 is combined with at least one of the hair-planting portion 111, the connecting portion 113, the support portion 15 and the mounting portion 17 to support the structure connected to the deformation portion 13. In some embodiments, the deformation portion 13 can wrap the bottom and side of the hair-planting portion 111 to avoid collision between the hair-planting portion 111 and the portion to be cared for. In other embodiments, the two opposite sides of the connecting portion 113 along the thickness direction Z of the electric toothbrush head 100 will face the gap between the hair-planting portions 111, and the deformation portion 13 can contact and wrap the opposite sides of the connecting portion 113 through the gap between the hair-planting portions 111 and the side where the second surface 102 of the brush plate 11 is located, so as to protect the connecting portion 113 and avoid the connecting portion 113 from breaking. The deformation portion 13 covers the mounting portion 17. The deformable portion 13 fills the gap between the mounting portion 17 and the hair-implanting portion 111 , and the deformable portion 13 fills the gap between adjacent hair-implanting portions 111 , and wraps the bottom and side of the connecting portion 113 .

[0074] Specifically, in some embodiments, the support portion 15 includes one, and the support portion 15 is arranged at the center of the brush plate 11 and located on the second surface 102 of the brush plate 11 along the length direction X of the electric toothbrush head 100 and the width direction Y of the electric toothbrush head 100. When the mounting portion 17 is connected to the support portion 15, the support portion 15 can be used to support the partial hair-planting portion 111 located at the center of the brush plate 11 and connected to or corresponding to the support portion 15. At this time, the partial hair-planting portion 111 in the center corresponding to the support portion 15 is a hard part that is difficult to deform, and the partial hair-planting portion 111 located at other positions that is not connected to the support portion 15 is a soft part that is easy to deform. In other embodiments, the support portion 15 includes multiple, and the multiple support portions 15 are arranged in sequence in the length direction X of the electric toothbrush head 100. In the length direction X of the electric toothbrush head 100, the brush plate 11 includes a first end and a second end opposite to each other, and one end of the mounting portion 17 is arranged at a position close to the first end of the brush plate 11 or the second end of the brush plate 11 and is connected to at least the support portion 15 closest to the side edge of the brush plate 11. Each support portion 15 can be connected to at least one bristle-planting portion 111 and / or connecting portion 113 to support the bristle-planting portion 111 and / or connecting portion 113. In the case where the mounting portion 17 is connected to the support portion 15 closest to the side edge of the brush plate 11, the brush plate 11 can be partially offset from the mounting portion 17 along the length direction X of the electric toothbrush head 100, and the brush plate 11 partially offset from the mounting portion 17 can be used to contact with an external support structure to support the brush plate 11 during the process of installing or forming the bristles 1101. For example, the support portion 15 includes two, along the length direction X of the electric toothbrush head 100, one of the support portions 15 is closer to the first end of the brush plate 11 relative to the center of the brush plate 11, and the other support portion 15 is closer to the second end of the brush plate 11 relative to the center of the brush plate 11. The mounting portion 17 can be connected to at least one of the support portions 15, and at this time, the two support portions 15 can be used to support a portion of the hair-planting portion 111 located on the side where the first end of the brush plate 11 is located and connected to one of the support portions 15, and a portion of the hair-planting portion 111 located on the side where the second end of the brush plate 11 is located and connected to the other support portion 15. At this time, the portion of the hair-planting portion 111 located at the edge corresponding to the support portion 15 is a hard portion that is difficult to deform, and the portion of the hair-planting portion 111 located in the center that is not connected to the support portion 15 is a soft portion that is easy to deform.

[0075] Furthermore, please combine Figure 8In some embodiments, in the width direction Y of the electric toothbrush head 100, the width D1 of the support portion 15 is smaller than the width D3 of the brush plate 11. In other embodiments, in the width direction Y of the electric toothbrush head 100, the width D2 of the mounting portion 17 is smaller than the width D3 of the brush plate 11. In still other embodiments, the width D1 of the support portion 15 and the width D2 of the mounting portion 17 are both smaller than the width D3 of the brush plate 11. In the width direction Y of the electric toothbrush head 100, the deformation part 13 can cover the second surface 102 and the peripheral side surface 103 of the supporting part 15, the mounting part 17, the connecting part 113 and the hair-planting part 111, and when the width D1 of the supporting part 15 and / or the width D2 of the mounting part 17 are smaller than the width D3 of the brush plate 11, if the outer contour of the deformation part 13 is relatively smooth, then in the width direction Y of the electric toothbrush head 100, the thickness of the deformation part 13 corresponding to and contacting the supporting part 15 and / or the mounting part 17 will be smaller than the thickness of the deformation part 13 corresponding to and directly contacting the bottom of the hair-planting part 111. At this time, the thickness of the deformation part 13 directly contacting the hair-planting part 111 is larger, and the thickness of the deformation part 13 corresponding to and contacting the corner of the peripheral side surface 103 of the brush plate 11 is also larger, and the deformation part 13 has a better shock-absorbing effect on the brush plate 11.

[0076] Furthermore, please combine Figure 8 In some embodiments, in the width direction Y of the electric toothbrush head 100, the width D1 of the support portion 15 is less than or equal to the width D2 of the mounting portion 17. When the width D1 of the support portion 15 is less than or equal to the width D2 of the mounting portion 17, along the width direction Y of the electric toothbrush head 100, the projection formed by the support portion 15 on the brush plate 11 is completely located within the projection formed by the mounting portion 17 on the brush plate 11. At this time, on the cross section formed along the width direction Y of the electric toothbrush head 100, the outer contour width of the support portion 15 is less than or equal to the outer contour width of the mounting portion 17. Along the width direction Y of the electric toothbrush head 100, the portion where the mounting portion 17 directly corresponds to the brush plate 11 can be filled with the deformable portion 13, and the thickness of the deformable portion 13 corresponding to the portion where the mounting portion 17 directly corresponds to the brush plate 11 is greater than the thickness of the deformable portion 13 corresponding to the portion where the supporting portion 15 directly corresponds to the brush plate 11. Compared with the solution in which the width D1 of the supporting portion 15 is greater than the width D2 of the mounting portion 17, at this time, the contact area between the deformable portion 13 and the brush plate 11, the supporting portion 15 and the mounting portion 17 is larger, and the combination is tighter, so the deformable portion 13 is less likely to fall off the brush plate 11.

[0077] See also Figure 1 and Fig.10 The electric toothbrush 1000 of the present application includes the electric toothbrush head 100 and the brush handle 300 described in any of the above embodiments, and the electric toothbrush head 100 is installed on the brush handle 300.

[0078] In the electric toothbrush 1000 of the present application, the deformation part 13 is a soft rubber structure formed on the brush plate 11. The deformation part 13 can fill the gap between the hair-planting parts 111 of the brush plate 11, and cover the second surface 102 and the surrounding side surface 103 of the brush plate 11. Therefore, the deformation part 13 is not easy to fall off from the brush plate 11, and there is no obvious boundary between the deformation part 13 and the brush plate 11, so it is not easy to form dirt.

[0079] In the description of this specification, the descriptions with reference to the terms "certain embodiments", "in an example", "exemplarily", etc., mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0080] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An electric toothbrush head, characterized in that: include: Brush hair; A brush plate, the brush plate comprising a first surface and a second surface opposite to each other in the thickness direction, and peripheral side surfaces respectively connected to the first surface and the second surface, the brush plate being provided with a hair-planting hole, the bristles being arranged in the hair-planting hole and extending from the first surface; the brush plate further comprising a plurality of hair-planting portions and connecting portions, adjacent hair-planting portions forming intervals, at least a portion of the connecting portions being arranged in the intervals and used to connect adjacent hair-planting portions; and A deformation part, wherein the deformation part covers the second surface and the peripheral side surface, and the deformation part also fills the gap and wraps the connecting part.

2. The electric toothbrush head according to claim 1, characterized in that: The first surface is more convex than the deformation portion.

3. The electric toothbrush head according to claim 2, characterized in that: The peripheral side surface includes an inclined surface segment located outside the deformation portion; the angle between the inclined surface segment and the thickness direction of the electric toothbrush head is in the range of [20°, 30°].

4. The electric toothbrush head according to claim 3, characterized in that: The deformation portion comprises a first side and a second side opposite to each other, the first side faces the first surface, and the first side of the deformation portion is provided with an arc surface, and the arc surface is connected to the inclined surface segment.

5. The electric toothbrush head according to claim 1, characterized in that: In the thickness direction of the electric toothbrush head, the depth of the hair transplanting hole is greater than or equal to 3.5 mm; the distance between the bottom wall of the hair transplanting hole and the second surface of the brush plate is greater than or equal to 0.8 mm.

6. The electric toothbrush head according to claim 1, characterized in that: The wall thickness of the hair implantation hole is greater than or equal to 0.8 mm.

7. The electric toothbrush head according to claim 1, characterized in that: The hair implanting part includes a plurality of hair implanting sheets, each of which is provided with the hair implanting holes, and gaps are formed between adjacent hair implanting sheets. The deformation part is used to wrap the bottom and side walls of each hair implanting sheet and fill the gaps between adjacent hair implanting sheets.

8. The electric toothbrush head according to claim 1, characterized in that: Along the thickness direction of the electric toothbrush head, the thickness of the connecting portion is smaller than the thickness of the hair-implanting portion, so that the deformation portion is filled between adjacent hair-implanting portions and covers the connecting portion.

9. The electric toothbrush head according to claim 1, characterized in that: In the thickness direction of the electric toothbrush head, the surface of the connecting portion away from the bristles is flush with the second surface; and the thickness of the connecting portion is greater than or equal to 1 mm.

10. The electric toothbrush head according to claim 1, characterized in that: The electric toothbrush head also includes: a supporting portion, the supporting portion being disposed on the second surface; and The mounting portion, one end of the support portion is connected to the hair implantation portion and / or the connection portion, and the other end of the support portion is connected to the mounting portion.

11. The electric toothbrush head according to claim 10, characterized in that: A gap is provided between the mounting portion and the hair-implanting portion; the deformation portion is combined with at least one of the hair-implanting portion, the connecting portion, the supporting portion and the mounting portion to form at least one of the following connections: The deformation portion wraps the bottom and side of the hair implantation portion; The deformation portion covers the mounting portion; The deformable portion fills the gap between the mounting portion and the hair implantation portion; and The deformation portion fills the gap between adjacent hair-implanting portions and wraps the bottom and side of the connecting portion.

12. The electric toothbrush head according to claim 10, characterized in that: In the width direction of the electric toothbrush head, the width of the supporting portion and / or the mounting portion is smaller than the width of the brush plate.

13. The electric toothbrush head according to claim 10, characterized in that: In the width direction of the electric toothbrush head, the width of the support portion is less than or equal to the width of the mounting portion.

14. The electric toothbrush head according to claim 10, characterized in that: The supporting parts include a plurality of supporting parts, and the plurality of supporting parts are arranged in sequence in the length direction of the electric toothbrush head; in the length direction of the electric toothbrush head, the mounting part is connected to at least the supporting part closest to the side edge of the brush plate.

15. The electric toothbrush head according to claim 1, characterized in that: The brush plate has a central axis along the length direction of the electric toothbrush head, the peripheral side surface includes a plurality of discontinuous sub-side surfaces, and the distances of the plurality of sub-side surfaces from the central axis are at least partially different. In the width direction of the electric toothbrush head, the width of the deformation portion filled in the gap is greater than the width of the deformation portion wrapped in the sub-side surface.

16. An electric toothbrush, characterized in that: include: The electric toothbrush head according to any one of claims 1 to 15; and A brush handle, wherein the electric toothbrush head is mounted on the brush handle.

Images