Electric toothbrush head and electric toothbrush

Abstract

The present application discloses an electric toothbrush head and an electric toothbrush. The electric toothbrush head includes a rod body, a brush body connected to the rod body, and a plurality of first brush filaments. The brush body includes a brush plate. Along the thickness direction of the brush body, the brush plate includes a first surface and a second surface opposite to each other, and the brush plate is a curved structure protruding from the first surface to the second surface. The plurality of first brush filaments are arranged on the brush plate at intervals from each other, and protrude and extend from the first surface toward the side away from the second surface. The brush plate is a curved structure protruding from the first surface to the second surface, which conforms to the natural curve of the part to be cleaned (such as teeth), can avoid the gums, and reduce the risk of gum damage; at the same time, the curved structure of the brush plate allows the first brush filaments arranged at intervals on the brush plate to fit more closely to each surface to be cleaned of the part to be cleaned (such as teeth), thereby improving the cleaning effect of the electric toothbrush.

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] As people's living standards improve, they pay more and more attention to oral health. Compared with traditional manual toothbrushes, electric toothbrushes have significant advantages in cleaning efficiency, ease of use and comfort, so they are becoming more and more popular among the public, and the functions and appearance designs of electric toothbrushes are constantly enriched.

[0003] An electric toothbrush is an electronic device that can clean the oral cavity. When the electric toothbrush is in operation, a driving member in the brush handle drives the electric toothbrush head to vibrate to clean the part to be cleaned, such as the surface to be cleaned and the gap between the teeth. The brush plate of the current electric toothbrush does not fit well with the surfaces to be cleaned of the part to be cleaned (such as teeth), resulting in poor cleaning effect and easy damage to the gums. Utility Model Content

[0004] Embodiments of the present application provide an electric toothbrush head and an electric toothbrush.

[0005] The electric toothbrush head of the embodiment of the present application comprises a rod body, a brush body connected to the rod body, and a plurality of first brush filaments. The brush body comprises a brush plate, and along the thickness direction of the brush body, the brush plate comprises a first surface and a second surface opposite to each other, and the brush plate is a curved structure protruding from the first surface to the second surface. The plurality of first brush filaments are arranged on the brush plate at intervals from each other, and protrude and extend from the first surface toward the side away from the second surface.

[0006] The brush plate is a curved structure protruding from the first surface to the second surface, which conforms to the natural curve of the part to be cleaned (such as teeth), avoids the gums and reduces the risk of gum damage; at the same time, the curved structure of the brush plate allows the first brush filaments arranged at intervals thereon to fit more closely to the various surfaces to be cleaned of the part to be cleaned, thereby improving the cleaning effect of the electric toothbrush.

[0007] In some embodiments, each group of the first brush filaments includes a plurality of mutually spaced bristle bundles. In the same group of the first brush filaments, the extension directions of the plurality of bristle bundles are the same, and the extension directions of at least two groups of the first brush filaments intersect. The extension directions of the plurality of bristle bundles in the same group of first brush filaments are the same, so that the bristle bundles of the same group of first brush filaments do not interfere with each other. The extension directions of at least two groups of first brush filaments intersect, that is, the bristle bundles of at least two different groups of first brush filaments have different inclination angles, so that the bristle bundles of at least two different groups of first brush filaments can fit the same to-be-cleaned surface of the part to be cleaned (e.g., teeth) from different angles, or fit different to-be-cleaned surfaces of the part to be cleaned, thereby further improving the cleaning effect.

[0008] In some embodiments, in the same group of the first brush filaments, the extension directions of the plurality of bristle bundles are different, and one bristle bundle in one group of the first brush filaments intersects with at least one bristle bundle in any other group of the first brush filaments. The bristle bundles with different extension directions in the same group of the first brush filaments can fit the same surface to be cleaned of the part to be cleaned (such as teeth) from different angles, thereby achieving multi-angle cleaning of the same surface to be cleaned of the part to be cleaned, and achieving a better cleaning effect; at the same time, one bristle bundle in the same group of the first brush filaments intersects with at least one bristle bundle in any other group of the first brush filaments, so that the bristle bundles of the first brush filaments of different groups can fit the same surface to be cleaned of the part to be cleaned from different angles, or fit different surfaces to be cleaned of the part to be cleaned, thereby further improving the cleaning effect.

[0009] In some embodiments, in the same group of the first brush filaments, the extension directions of the plurality of bristle bundles are different, and the extension directions of at least two of the bristle bundles intersect. The bristle bundles with different extension directions in the same group of the first brush filaments can fit the same surface to be cleaned of the part to be cleaned (such as teeth) from different angles, thereby achieving multi-angle cleaning of the same surface to be cleaned of the part to be cleaned, and achieving a better cleaning effect.

[0010] In some embodiments, the brush body further includes a deformable member. The deformable member includes a buffer portion, and the buffer portion covers at least a portion of the brush plate and / or at least a portion of the rod. The buffer portion covering at least a portion of the brush plate can provide a buffering effect when the electric toothbrush head cleans the oral cavity to avoid bumping against the gums; the buffer portion covering at least a portion of the rod can, on the one hand, prevent the electric toothbrush head from vibrating and bumping against the gums when cleaning the part to be cleaned (such as teeth) in the oral cavity, causing oral damage, and on the other hand, can prevent the electric toothbrush head from changing the cleaning direction or cleaning area in the oral cavity, or the rod from bumping against the teeth or gums when the electric toothbrush head is taken out of the oral cavity or inserted into the oral cavity.

[0011] In some embodiments, the buffer portion includes a first surface and a second surface facing each other, the first surface and the first surface are located on the same side of the brush body, and the buffer portion is a curved structure protruding from the first surface to the second surface. The buffer portion can buffer the impact of the brush body on various parts of the oral cavity, and the curved buffer portion can form an escape space to avoid the gums and reduce the risk of gum damage.

[0012] In some embodiments, the curvature of the brush plate is different from that of the buffer portion. In the width direction of the brush body, the thickness of the buffer portion increases first and then decreases. In the width direction of the brush body, the thickness of the buffer portion increases first and then decreases, so that the buffer portion can form a curved structure protruding from the first surface to the second surface, so that the buffer portion can not only buffer the impact of the brush body on various parts of the oral cavity, but also form an avoidance space to avoid the gums and reduce the risk of gum damage.

[0013] In some embodiments, the deformable member further includes a second brush wire, the second brush wire protrudes and extends from the buffer portion, and passes through the second surface of the brush plate to the first surface of the brush plate, and the second brush wire is spaced apart from the first brush wire. In this embodiment, the deformable member further includes a second brush wire, and the second brush wire and the first brush wire clean the part to be cleaned (such as teeth) together, thereby improving the cleaning effect of the electric toothbrush on the part to be cleaned.

[0014] In some embodiments, the deformable member is a rubber-coated member formed integrally with the second brush filament and the buffer portion. The strength of the junction between the integrally formed buffer portion and the second brush filament is relatively high, and the second brush filament is not easy to fall off the buffer portion. And there will be no connection gap between the integrally formed buffer portion and the second brush filament, so in the process of using the electric toothbrush head to clean the oral cavity, liquid or foam will not be deposited on the deformable member, and the electric toothbrush head can remain clean. At the same time, the second brush filament is a part of the rubber-coated member, which is different from the first brush filament (at least the material is different). The different first brush filaments and the second brush filaments can clean and polish the part to be cleaned (such as teeth), respectively, that is, the first brush filament and the second brush filament can care for the part to be cleaned in different ways, and the electric toothbrush has a better care effect on the part to be cleaned.

[0015] In some embodiments, each group of the first brush filaments includes a plurality of mutually spaced bristle bundles, and the second brush filaments include a plurality of mutually spaced bristle bundles; the shape of the cross section of the bristle bundles in the second brush filaments is different from the shape of the cross section of the bristle bundles in the first brush filaments. The shape of the cross section of the bristle bundles in the second brush filaments is different from the shape of the cross section of the bristle bundles in the first brush filaments, so that the electric toothbrush head can better adapt to different shapes and sizes of the parts to be cleaned (such as teeth) and the areas where they are located, and provide different cleaning effects.

[0016] In some embodiments, the second brush filaments include a plurality of mutually spaced bristle bundles; at least two of the bristle bundles of the second brush filaments form an installation area, and a plurality of groups of the first brush filaments are respectively arranged in different installation areas. The bristle bundles of the first brush filaments clean the part to be cleaned (e.g., teeth), and the bristle bundles of the second brush filaments polish the part to be cleaned. The bristle bundles arranged at intervals can make the brush plate have different cleaning effects. At the same time, the first brush filaments are respectively arranged in different installation areas formed by the second brush filaments, so that the first brush filaments and the second brush filaments can be intertwined with each other, forming a mutually integrated state, and the cleaning and polishing of the part to be cleaned can be intertwined.

[0017] In some embodiments, the first brush wire and the second brush wire are made of different materials. The different materials of the first brush wire and the second brush wire can enable the electric toothbrush head to have different cleaning methods (cleaning and polishing) for the cleaning part, thereby achieving better care effects and better meeting the current user's diversified needs for oral care effects.

[0018] In some embodiments, the hardness of the first brush wire is greater than that of the second brush wire, and under the same force, the deformation of the second brush wire is greater than that of the first brush wire. The deformation of the second brush wire is greater than that of the first brush wire, so that the first brush wire can be used to clean the more stubborn dirt on the surface of the part to be cleaned, and the second brush wire can perform secondary cleaning and friction polishing on the relatively clean surface of the part to be cleaned after the first brush wire finishes cleaning, so as to achieve a better cleaning effect on the surface of the part to be cleaned.

[0019] In some embodiments, the friction between the first brush wire and the part to be cleaned is less than the friction between the second brush wire and the part to be cleaned. The friction between the first brush wire and the part to be cleaned is less than the friction between the second brush wire and the part to be cleaned, so that the first brush wire will not excessively scratch the surface to be cleaned of the part to be cleaned to avoid damaging the surface to be cleaned, and the second brush wire can fully rub against the surface to be cleaned of the part to be cleaned to polish the surface to be cleaned of the part to be cleaned to care for the part to be cleaned.

[0020] In some embodiments, the hardness of the deformable member is less than the hardness of the brush plate. The hardness of the brush plate is greater than the hardness of the deformable member, so that the brush plate can better support the first brush filament. The hardness of the deformable member is less than the hardness of the brush plate, so that a buffering effect can be provided when the deformable member contacts the part to be cleaned, thereby preventing the deformable member from bumping and damaging the part to be cleaned.

[0021] In some embodiments, the deformable member is made of soft rubber and the brush plate is made of hard rubber. The brush plate is made of hard rubber so that the brush plate can better support the first brush filaments. The deformable member is made of soft rubber so that it can provide a buffering effect when the deformable member contacts the part to be cleaned, thereby preventing the deformable member from bumping and damaging the part to be cleaned.

[0022] In some embodiments, the electric toothbrush head further includes a third bristle. The brush plate includes a first bristle-planting portion, a second bristle-planting portion, and a connecting portion. The second bristle-planting portion is disposed on one side of the first bristle-planting portion in the width direction of the brush plate, and is spaced apart from the first bristle-planting portion. The length of the first bristle-planting portion is different from the length of the second bristle-planting portion. The first bristle filament is disposed in the first bristle-planting portion. The third bristle filament is disposed in the second bristle-planting portion. The connecting portion is disposed in the interval between the adjacent first bristle-planting portion and the second bristle-planting portion, and is used to connect the first bristle-planting portion and the second bristle-planting portion. The vibration effects transmitted by the electric toothbrush head to the first bristle-planting portion and the second bristle-planting portion are different, so that the first bristle filament on the first bristle-planting portion and the third bristle filament on the second bristle-planting portion have different vibration effects, thereby matching the vibration transmission requirements of different surfaces to be cleaned of the portion to be cleaned (such as teeth), thereby better cleaning the oral cavity.

[0023] In some embodiments, the length of the first implanted hair portion is greater than that of the second implanted hair portion. The first implanted hair portion is longer and penetrates deeper into the oral cavity, and has a larger cleaning range, which is beneficial for cleaning the deep part of the oral cavity. The second implanted hair portion avoids the gums when cleaning the oral cavity, so as to avoid collision with the part to be cleaned (such as teeth).

[0024] In some embodiments, the width of the first hair implantation portion is greater than the width of the second hair implantation portion. The first hair implantation portion has a larger cleaning range in the width direction, thereby improving the cleaning efficiency of the first hair implantation portion. The second hair implantation portion avoids the gums when cleaning the oral cavity, thereby avoiding collision with the portion to be cleaned (e.g., teeth).

[0025] In some embodiments, each group of the first brush filaments includes a plurality of mutually spaced hair bundles. The free end faces of the hair bundles in the first brush filaments are at the same distance from the first face, so that the hair bundles in the first brush filaments have the same brushing feel, improving user experience, and can also make the hair bundles in the first brush filaments wear synchronously during use, which helps to maintain the service life of the electric toothbrush head.

[0026] In some embodiments, each group of the first brush filaments includes a plurality of mutually spaced hair bundles; in the first brush filaments, the distance between the free end face of the hair bundle located at the edge of the first hair-implanted portion and the first surface is smaller than the distance between the free end face of the hair bundle located at the center of the first hair-implanted portion and the first surface. That is, the hair bundle at the center of the first hair-implanted portion is longer than the hair bundle at the edge, and the hair bundle at the center of the first hair-implanted portion is easier to extend into the pits and fissures deep in the oral cavity and clean the pits and fissures, which can improve the cleaning effect of the pits and fissures.

[0027] In some embodiments, there are two second hair-planting parts, and the two second hair-planting parts are respectively arranged on both sides of the first hair-planting part in the width direction of the brush plate. The free end faces of the hair bundles in the third brush filaments on the two second hair-planting parts are at the same distance from the first surface. The free end faces of the hair bundles in the third brush filaments on the two second hair-planting parts are at the same distance from the first surface, which can make the hair bundles in the third brush filaments on the two second hair-planting parts have the same brushing feel, improve user experience, and also make the hair bundles in the third brush filaments wear synchronously during use, which helps to maintain the service life of the electric toothbrush head.

[0028] In some embodiments, the distance between the free end face of the hair bundle in the third brush filament and the first surface is smaller than the distance between the free end face of the hair bundle in the first brush filament and the first surface. That is, the hair bundle in the third brush filament is shorter than the hair bundle in the first brush filament. When the electric toothbrush head cleans the part to be cleaned (such as teeth), the hair bundle in the first brush filament serves as the main cleaning force to clean the middle area of ​​the part to be cleaned, and the hair bundle in the third brush filament can serve as a cleaning auxiliary to clean the edge area of ​​the part to be cleaned, and can avoid the gums close to the edge area of ​​the part to be cleaned.

[0029] In certain embodiments, the bristles in the first and third brush filaments are inclined toward the median plane of the width of the brush plate, and the inclination angle of the bristles in the third brush filament toward the median plane of the width of the brush plate is greater than the inclination angle of the bristles in the first brush filament toward the median plane of the width of the brush plate. The bristles in the first and third brush filaments are inclined toward the median plane of the width of the brush plate, so that the entire bristle (the whole formed by the first and third brush filaments) is in an inward shape, and the first and third brush filaments can focus on cleaning the central area of ​​the part to be cleaned (such as teeth), and the cleaning effect of the central area of ​​the part to be cleaned is better. The inclination angle of the bristles in the third brush filament toward the median plane of the width of the brush plate is greater than the inclination angle of the bristles in the first brush filament toward the median plane of the width of the brush plate, so that the third brush filament can avoid the gums close to the edge area of ​​the part to be cleaned to avoid damage.

[0030] In some embodiments, the first surface of the first bristle-implanted portion is provided with a first bristle-implanted hole, and the first surface of the second bristle-implanted portion is provided with a second bristle-implanted hole. The first brush filament has copper bristles implanted in the first bristle-implanted hole, and the third brush filament has no copper bristles implanted in the second bristle-implanted hole. That is, the first brush filament is pressed tightly in the first bristle-implanted hole by the copper sheet, and the third brush filament passes through the second bristle-implanted hole and is glued to the second surface of the brush plate, so that the fixed end of the first brush filament is more firmly connected to the brush plate than the fixed end of the third brush filament. When receiving reverse pressure from the portion to be cleaned, the third brush filament is more easily deformed, and even if the third brush filament touches the gums close to the edge area of ​​the portion to be cleaned, it will not over-stimulate the gums and cause gum damage.

[0031] The electric toothbrush of the embodiment of the present application comprises the electric toothbrush head and the brush handle of any of the above embodiments, and the toothbrush head is mounted on the brush handle. The brush plate is a convex curved structure from the first surface to the second surface, which conforms to the natural curve of the part to be cleaned (such as teeth), can avoid the gums, and reduce the risk of gum damage; at the same time, the curved structure of the brush plate allows the first brush filaments arranged thereon to fit more closely to the various surfaces to be cleaned of the part to be cleaned, thereby improving the cleaning effect of the electric toothbrush.

[0032] 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

[0033] 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:

[0034] Figure 1 is a three-dimensional schematic diagram of an electric toothbrush head according to certain embodiments of the present application;

[0035] Figure 2 yes Figure 1 An exploded schematic diagram of an electric toothbrush head is shown;

[0036] Figure 3 is an exploded schematic diagram of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0037] Figure 4 is a schematic plan view of an electric toothbrush head according to certain embodiments of the present application;

[0038] Figure 5 is a schematic cross-sectional view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0039] Figure 6 is a schematic plan view of a partial structure of an electric toothbrush head according to some embodiments of the present application;

[0040] Figure 7 It is a three-dimensional schematic diagram of an electric toothbrush according to certain embodiments of the present application.

[0041] Description of main component symbols:

[0042] 1000, electric toothbrush; 100, electric toothbrush head; 300, brush handle;

[0043] 10. Brush body; 30. Rod body;

[0044] 11. brush plate; 101. first surface; 1011. mounting area; 103. second surface; 105. peripheral side surface; 111. first hair implantation portion; 1111. first hair implantation hole; 113. second hair implantation portion; 1131. second hair implantation hole; 115. connection portion; 117. through hole;

[0045] 13, first brush filament; 131, hair bundle; 1311, first group; 1312, second group; 1313, third group; 1314, fourth group; 1310, free end surface;

[0046] 15, deformation member; 151, buffer portion; 1511, first surface; 1513, second surface; 153, second brush filament; 1530, hair bundle; 1531, first bundle; 1532, second bundle; 1533, third bundle; 1534, fourth bundle; 1535, fifth bundle;

[0047] 17, third brush filament; 171, hair bundle; 1711, free end surface;

[0048] D, width mid-plane; X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0049] 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.

[0050] 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.

[0051] 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.

[0052] See also Figure 1 and Figure 2 The electric toothbrush head 100 of the embodiment of the present application includes a brush body 10, a rod body 30 connected to the brush body 10, and a plurality of first brush filaments 13. The brush body 10 includes a brush plate 11. Along the thickness direction Z of the brush body 10, the brush plate 11 includes a first surface 101 and a second surface 103 opposite to each other. The brush plate 11 is a curved structure protruding from the first surface 101 to the second surface 103. The plurality of first brush filaments 13 are arranged on the brush plate 11 at intervals, and protrude and extend from the first surface 101 to the side away from the second surface 103.

[0053] The first direction of the brush body 10 is the length direction X, the second direction of the brush body 10 is the width direction Y, and the third direction of the brush body 10 is the thickness direction Z.

[0054] Specifically, the electric toothbrush head 100 includes a brush body 10 and a rod body 30 connected to each other. The rod body 30 is generally a cylindrical structure, so that the rod body 30 can be easily inserted into the oral cavity so that the first brush filaments 13 on the brush body 10 can reach various parts of the oral cavity that need to be cleaned. The cross-sectional shape of the rod body 30 includes but is not limited to a perfect circle, an ellipse or a polygon. The rod body 30 can move the electric toothbrush 1000 ( Figure 7 The vibration of the driving member (not shown) is transmitted to the brush body 10, and the brush body 10 transmits the vibration to the first brush wire 13. The first brush wire 13 can clean the part to be cleaned (the part to be cleaned) in the oral cavity during the vibration process. The part to be cleaned may include teeth, tooth gaps, tongue, gums, and the inner wall of the oral cavity.

[0055] The rod body 30 is connected to the brush body 10. In some embodiments, the brush body 10 and the rod body 30 are an integrated structure, that is, the brush body 10 and the rod body 30 are an integral structure, thereby improving the bonding strength between the brush body 10 and the rod body 30, preventing the brush body 10 and the rod body 30 from separating during the operation of the electric toothbrush head 100, thereby ensuring the stability and reliability of the operation of the electric toothbrush head 100. In other embodiments, the brush body 10 and the rod body 30 are split structures, that is, the brush body 10 and the rod body 30 are two different structures. The brush body 10 and the rod body 30 can be combined together by a non-detachable connection method, and the non-detachable connection method includes but is not limited to bonding or welding. In some embodiments, the brush body 10 can be made of a hard material, such as plastics such as PP, ABS or PBT. The material of the brush body 10 and the rod body 30 can be the same, for example, both are PP plastic; or, the material of the brush body 10 and the rod body 30 can be different, for example, the material of the brush body 10 is PP plastic and the material of the rod body 30 is ABS plastic.

[0056] The brush plate 11 is a structure on the brush body 10 that can be connected to the first brush filaments 13 and support and connect the first brush filaments 13. In some embodiments, the brush plate 11 is an integral structure, and at least one recess and / or gap is provided on the brush plate 11, so that the brush plate 11 can be deformed when subjected to force. In other embodiments, the brush plate 11 is an integral structure formed by connecting multiple parts together, each part is provided with the first brush filaments 13, and gaps are provided between different parts. When the brush plate 11 is subjected to force, the spacing between each part will change under the action of external force, so that the brush plate 11 can be deformed.

[0057] It can be understood that the first surface 101 of the brush plate 11 and the second surface 103 of the brush plate 11 are arranged opposite to each other in the thickness direction Z of the electric toothbrush head 100, that is, the thickness direction Z of the electric toothbrush head 100 can be the direction in which the first surface 101 of the brush plate 11 points to the second surface 103 of the brush plate 11, or the direction in which the second surface 103 of the brush plate 11 points to the first surface 101 of the brush plate 11, which is not limited here. In some embodiments, the brush plate 11 includes a first end and a second end in the length direction X, the first end of the brush plate 11 is a free end, and the second end of the brush plate 11 can be directly or indirectly connected to the rod body 30. In other embodiments, the rod body 30 is directly or indirectly connected to the second surface 103 of the brush plate 11, such as Figure 2 shown.

[0058] Furthermore, the brush plate 11 is a curved structure protruding from the first surface 101 to the second surface 103, that is, the intersection point of the mid-width plane D of the second hair-implanted portion 113 and the mid-width plane D of the first hair-implanted portion 111 is on the side where the first surface 101 is located. The shapes of the protruding curved surfaces of the first surface 101 and the second surface 103 may be the same or different. The curved surface shapes include but are not limited to circular arc surfaces, elliptical arc surfaces, or parabolas, etc., which are not limited in the present application. The shapes of the cross sections of the brush plate 11 cut by the YZ plane in the length direction X may be the same, different, or partially the same.

[0059] The first brush filaments 13 are used to clean and / or care for teeth, interdental spaces, gums, tongue or the inner wall of the oral cavity. The material of the first brush filaments 13 includes but is not limited to nylon, polyamide or silicone. The first brush filaments 13 are distributed on the brush plate 11 at intervals.

[0060] In the electric toothbrush head 100 of the present application, the brush plate 11 is a curved structure protruding from the first surface 101 to the second surface 103, which conforms to the natural curve of the part to be cleaned (such as teeth), can avoid the gums, and reduce the risk of gum damage; at the same time, the brush plate 11 with a curved structure allows the first brush wires 13 arranged thereon at intervals to fit more closely to the various surfaces to be cleaned of the part to be cleaned (such as teeth), thereby improving the electric toothbrush 1000 ( Figure 7 cleaning effect.

[0061] See also Figure 3 and Figure 6 In some embodiments, each group of first brush filaments 13 includes a plurality of mutually spaced bristle bundles 131. In the same group of first brush filaments 13, the extension directions of the plurality of bristle bundles 131 are the same, and the extension directions of at least two groups of first brush filaments 13 intersect.

[0062] Specifically, the first brush filaments 13 include multiple groups, and each group of first brush filaments 13 includes multiple bristle bundles 131. The bristle bundles 131 of each group of first brush filaments 13 are spaced apart from each other and have a certain spacing. The number of bristle bundles 131 of each group of first brush filaments 13 may be the same as or different from the number of bristle bundles 131 of any other group of first brush filaments 13, and there is no limitation here. In one embodiment of the present application, the number of bristle bundles 131 of each group of first brush filaments 13 is three. The distribution positions of the multiple bristle bundles 131 in the same group of first brush filaments 13 are different on the brush plate 11, and the outer contour shape of each group of first brush filaments 13 in any cross section (XY plane) perpendicular to the thickness direction Z may also be different. For example, Figure 6As shown, the first brush filaments 13 include four groups, namely the first group 1311, the second group 1312, the third group 1313 and the fourth group 1314. The four groups of first brush filaments 13 each include three bristle bundles 131. The outer contours of the first group 1311 and the second group 1312 in any cross section (XY plane) perpendicular to the thickness direction Z are triangular, and the outer contours of the third group 1313 and the fourth group 1314 in any cross section (XY plane) perpendicular to the thickness direction Z are rectangular. In each group of first brush filaments 13, the spacing between adjacent bristle bundles 131 can be the same, or different, or partially the same and partially different. The cross-sectional shape of the bristle bundle 131 cut by the XY plane can be circular, elliptical, triangular, quadrilateral or other polygonal, etc., which is not limited here. In the embodiment of the present application, the cross-sectional shape of the bristle bundle 131 of the first brush filament 13 is circular. In the same group of first brush filaments 13, the multiple hair bundles 131 extend in the same direction, that is, the multiple hair bundles 131 of the same group of first brush filaments 13 have the same inclination angle in the thickness direction Z and are parallel to each other. The extending directions of at least two groups of first brush filaments 13 intersect, that is, the extending directions of at least two groups of first brush filaments 13 are different, and any hair bundle 131 of the two groups of first brush filaments 13 is parallel to any hair bundle 131 of the same group, and intersects with any hair bundle 131 of the other group from the first surface 101 to the side away from the second surface 103.

[0063] The extension directions of the multiple hair bundles 131 in the same group of first brush filaments 13 are the same, so that the hair bundles 131 in the same group of first brush filaments 13 do not interfere with each other. The extension directions of at least two groups of first brush filaments 13 intersect, that is, the hair bundles 131 of at least two different groups of first brush filaments 13 have different inclination angles, so that the hair bundles 131 of at least two different groups of first brush filaments 13 can fit the same surface to be cleaned of the part to be cleaned from different angles, or fit different surfaces to be cleaned of the part to be cleaned, thereby further improving the cleaning effect.

[0064] See also Figure 3 and Figure 4 In some embodiments, in the same group of first brush filaments 13, the extension directions of the plurality of bristle bundles 131 are different. One bristle bundle 131 in one group of first brush filaments 13 intersects with at least one bristle bundle 13 in any other group of first brush filaments 13.

[0065] Specifically, in the same group of first brush filaments 13, the extension directions of the plurality of hair bundles 131 may be all different, or may be partially different or partially the same. Any hair bundle 131 of the same group of first brush filaments 13 may be parallel to any hair bundle 131 of any other group of first brush filaments 13, or may intersect from the first surface 101 to the side away from the second surface 103. In this embodiment, one hair bundle 131 of the same group of first brush filaments 13 intersects with at least one hair bundle 131 of any other group of first brush filaments 13. The bristle bundles 131 of the same group of first brush filaments 13 with different extension directions can fit the same surface to be cleaned (such as the side of the teeth) of the part to be cleaned (such as the teeth) from different angles, thereby achieving multi-angle cleaning of the same surface to be cleaned of the part to be cleaned, and the cleaning effect is better; at the same time, one bristle bundle 131 of the same group of first brush filaments 13 intersects with at least one bristle bundle 131 of the first brush filaments 13 of any other group, so that the bristle bundles 131 of different groups of first brush filaments 13 can fit the same surface to be cleaned of the part to be cleaned from different angles, or fit different surfaces to be cleaned of the part to be cleaned, thereby further improving the cleaning effect.

[0066] See also Figure 3 and Figure 4 In some embodiments, in the same group of first brush filaments 13 , the extension directions of the plurality of bristle bundles 131 are different, and the extension directions of at least two bristle bundles 131 intersect.

[0067] Specifically, in the same group of first brush filaments 13, the extension directions of the plurality of bristle bundles 131 may be all different, or may be partially different and partially the same. The extension directions of at least two bristle bundles 131 intersect. The bristle bundles 131 with different extension directions in the same group of first brush filaments 13 can fit the same surface to be cleaned of the part to be cleaned (e.g., teeth) from different angles, thereby achieving multi-angle cleaning of the same surface to be cleaned of the part to be cleaned, and achieving a better cleaning effect.

[0068] See also Figure 4 and Figure 5 In some embodiments, the brush body 10 further includes a deformable member 15. The deformable member 15 includes a buffer portion 151, and the buffer portion 151 covers at least a portion of the brush plate 11 and / or at least a portion of the rod body 30.

[0069] Specifically, the deformable member 15 is a structure that can be deformed under force, and the deformable member 15 can be used to protect and support the brush plate 11. The material of the deformable member 15 can be a flexible material such as silicone, polyurethane, rubber or plastic, which is not limited here. The buffer portion 151 is a partial structure of the deformable member 15. The buffer portion 151 can be provided on at least a portion of the brush plate 11 and / or at least a portion of the rod body 30 in a rubber-coated manner. The buffer portion 151 can cover at least one of the first surface 101, the second surface 103 and the peripheral side surface 105 connecting the first surface 101 and the second surface 103 of the brush plate 11. In an embodiment of the present application, the buffer portion 151 can be formed on the brush plate 11 and / or the rod body 30 by hot-melting the material and then solidifying it again.

[0070] The buffer portion 151 covering at least a portion of the brush plate 11 can provide a buffering effect when the electric toothbrush head 100 cleans the oral cavity to avoid hitting the gums; the buffer portion 151 covering at least a portion of the rod body 30 can, on the one hand, prevent the rod body 30 from vibrating and hitting the part to be cleaned (such as teeth or gums) when the electric toothbrush head 100 cleans the part to be cleaned in the oral cavity, causing oral damage; on the other hand, it can prevent the electric toothbrush head 100 from changing the cleaning direction or cleaning area in the oral cavity, or when the electric toothbrush head 100 is taken out of the oral cavity or inserted into the oral cavity, the rod body 30 hits the part to be cleaned (such as teeth or gums) and damages the oral cavity.

[0071] See also Figure 4 and Figure 5 In some embodiments, the buffer portion 151 includes a first surface 1511 and a second surface 1513 opposite to each other, the first surface 1511 and the first surface 101 are located on the same side of the brush body 10 , and the buffer portion 151 is a curved structure protruding from the first surface 1511 to the second surface 1513 .

[0072] Specifically, in the thickness direction Z of the electric toothbrush head 100, the buffer portion 151 includes a first surface 1511 and a second surface 1513 opposite to each other. The first surface 1511 of the buffer portion 151 is on the same side as the first surface 101 of the brush plate 11, and the second surface 1513 of the buffer portion 151 is on the same side as the second surface 103 of the brush plate 11. In the thickness direction Z of the electric toothbrush head 100, the first surface 1511 of the buffer portion 151 is lower than the first surface 101 of the brush plate 11. In the case where the first surface 101 of the brush plate 11 protrudes compared to the first surface 1511 of the buffer portion 151, the buffer portion 151 in a fluid state will not enter the first surface 101 provided on the brush plate 11 during molding, thereby preventing the first brush filament 13 from being difficult to install. The buffer portion 151 is a curved structure protruding from the first surface 1511 to the second surface 1513, that is, the buffer portion 151 is protruding and curved from the side where the first surface 1511 is located to the side where the second surface 1513 is located. The convex curved surfaces of the first surface 1511 and the second surface 1513 may have the same or different shapes. The curved surface shapes include, but are not limited to, arc surfaces, elliptical arc surfaces, or parabolas, etc., and are not limited in the present application. The shapes of the cross sections of the buffer portion 151 cut by the YZ plane in the length direction X may be the same or different, or partly the same and partly different.

[0073] In the electric toothbrush head 100 of the present application, the buffer portion 151 can buffer the impact of the brush body 10 on various parts of the oral cavity, and the curved buffer portion 151 can form an escape space to avoid the part to be cleaned (such as the gums), reducing the risk of gum damage.

[0074] Please continue reading Figure 4 and Figure 5 In some embodiments, the curvature of the brush plate 11 is different from the curvature of the buffer portion 151. In the width direction Y of the brush body 10, the thickness of the buffer portion 151 increases first and then decreases.

[0075] The curvature of the brush plate 11 can be measured by the curvature radius of the first surface 101 of the brush plate 11, or by the curvature radius of the second surface 103 of the brush plate 11, or by the curvature radius of the midplane between the first surface 101 and the second surface 103. The curvature of the buffer portion 151 can be measured by the curvature radius of the first surface 1511 of the buffer portion 151, or by the curvature radius of the midplane between the first surface 1511 and the second surface 1513. The curvature of the brush plate 11 is different from that of the buffer portion 151, so that the brush plate 11 and the buffer portion 151 can be respectively contacted with different positions of the oral cavity, thereby improving the adhesion effect of the brush plate 11 to the surface of the portion to be cleaned (such as teeth), thereby improving the cleaning effect.

[0076] In the width direction Y of the brush body 10, the thickness of the buffer part 151 first increases and then decreases, so that the buffer part 151 can form a curved structure protruding from the first surface 1511 to the second surface 1513, so that the buffer part 151 can not only buffer the impact of the brush body 10 on various parts of the oral cavity, but also form an avoidance space to avoid the gums and reduce the risk of gum damage.

[0077] See also Figure 2 and Figure 5 In some embodiments, the deformable member 15 further includes a second brush filament 153 , which protrudes and extends from the buffer portion 151 and passes through the second surface 103 of the brush plate 11 to the first surface 101 of the brush plate 11 , and the second brush filament 153 is spaced apart from the first brush filament 13 .

[0078] Specifically, the first brush filament 13 and the second brush filament 153 are structures that can be arranged on the electric toothbrush head 100 for cleaning and / or caring for the part to be cleaned. The second brush filament 153 may include a plurality of bristle bundles 1530. The material of the bristle bundles 1530 includes but is not limited to nylon, polyamide or silicone.

[0079] The brush plate 11 is also provided with a through hole 117 that passes through the second surface 103 and the first surface 101. In some embodiments, the second brush filaments 153 and the buffer portion 151 pre-form an integrally structured deformable member 15, and the integrally structured deformable member 15 is installed on the brush plate 11 from the second surface 103 of the brush plate 11. Specifically, the second brush filaments 153 pass through the through hole 117 from the second surface 103 of the brush plate 11 and extend from the first surface 101 of the brush plate 11, so that the buffer portion 151 is tightly fitted with the second surface 103 of the brush plate 11, and the second brush filaments 153 can protrude from the side where the first surface 101 of the brush plate 11 is located. In other embodiments, the soft glue or other materials in a fluid state flow from the first surface 101 of the brush plate 11 into the through hole 117 to form the second brush filaments 153 in the through hole 117, and the soft glue or other materials flowing out of the through hole 117 can be heated and solidified on the second surface 103 of the brush plate 11, the first surface 101 of the brush plate 11, and the peripheral side surface 105 of the brush plate 11 to form the buffer portion 151. In the case where the second brush filaments 153 and the buffer portion 151 are formed separately, the soft glue in a fluid state is first formed on the second surface 103 of the brush plate 11, the first surface 101 of the brush plate 11, and the peripheral side surface 105 of the brush plate 11 to form the buffer portion 151, and the soft glue in a fluid state then flows into the through hole 117 and reaches the surface of the buffer portion 151 corresponding to the through hole 117 to form the second brush filaments 153.

[0080] The second brush wire 153 and the first brush wire 13 clean the part to be cleaned together, which can improve the electric toothbrush 1000 ( Figure 7 (as shown) the cleaning effect on the part to be cleaned.

[0081] See also Figure 2In some embodiments, the deformable member 15 is a rubber-coated member formed integrally with the second brush filament 153 and the buffer portion 151 .

[0082] Specifically, the integrally formed buffer portion 151 and the second brush wire 153 have high strength at the junction, and the second brush wire 153 is not easy to fall off from the buffer portion 151. In addition, there is no connection gap between the integrally formed buffer portion 151 and the second brush wire 153. Therefore, when the electric toothbrush head 100 is used to clean the oral cavity, liquid or foam will not be deposited on the deformable member 15, and the electric toothbrush head 100 can remain clean. At the same time, the second brush wire 153 is a part of the rubber-coated part, which is different from the first brush wire 13 (at least the material is different). The different first brush wire 13 and the second brush wire 153 can clean and polish the part to be cleaned (such as teeth), that is, the first brush wire 13 and the second brush wire 153 can care for the part to be cleaned in different ways, and the electric toothbrush 1000 has a better care effect on the part to be cleaned.

[0083] See also Figure 2 and Figure 6 In some embodiments, each group of first brush filaments 13 includes a plurality of mutually spaced bristle bundles 131, and the second brush filaments 153 include a plurality of mutually spaced bristle bundles 1530. The shape of the cross section (cross section cut by the XY plane) of the bristle bundles 1530 in the second brush filaments 153 is different from the shape of the cross section (cross section cut by the XY plane) of the bristle bundles 131 in the first brush filaments 13.

[0084] Specifically, the cross-sectional shape of the hair bundle 1530 in the second brush filament 153 and the cross-sectional shape of the hair bundle 131 in the first brush filament 13 can be circular, elliptical, triangular, quadrilateral or other polygonal shapes. In the present application, the cross-sectional shape of the hair bundle 131 in the first brush filament 13 is approximately circular, and the cross-sectional shape of the hair bundle 1530 in the second brush filament 153 is approximately track-shaped. The multiple hair bundles 131 in the first brush filament 13 are spaced apart from each other, so that the multiple hair bundles 131 in the first brush filament 13 can be prevented from interfering with each other. The multiple hair bundles 1530 in the second brush filament 153 are spaced apart from each other, so that the multiple hair bundles 1530 in the second brush filament 153 can be prevented from interfering with each other. Along the width direction Y of the electric toothbrush head 100, when the width of the first brush filament 13 is similar to the width of the second brush filament 153, the hair bundle 1530 of the second brush filament 153 with a runway-shaped cross section has a larger contact area with the part to be cleaned than the hair bundle 131 of the first brush filament 13 with a circular cross section, and can more fully rub against the part to be cleaned to polish the surface of the part to be cleaned. The shape of the cross section of the hair bundle 1530 in the second brush filament 153 is different from the shape of the cross section of the hair bundle 131 in the first brush filament 13, so that the electric toothbrush head 100 can better adapt to the different shapes and sizes of the part to be cleaned (such as teeth) and the area where they are located, and provide different cleaning effects.

[0085] See also Figure 2 and Figure 5 In some embodiments, at least two bristle bundles 1530 of the second brush filaments 153 form an installation area 1011 , and multiple groups of first brush filaments 13 are respectively arranged in different installation areas 1011 .

[0086] Specifically, the hair bundles 1530 in the second brush filaments 153 are arranged at intervals, wherein the space enclosed by at least two hair bundles 1530 and the edge of the first surface 101 of the brush plate 11 can divide the first surface 101 of the brush plate 11 into a plurality of installation areas 1011. More specifically, in the embodiments of the present application, please refer to Figure 6The first brush filaments 13 include a first group 1311, a second group 1312, a third group 1313 and a fourth group 1314 spaced apart from each other, and each group of first brush filaments 13 corresponds to an installation area 1011. The first group 1311 and the second group 1312 are arranged in sequence in the length direction X of the electric toothbrush head 100, and the third group 1313 and the fourth group 1314 are arranged in the width direction Y of the electric toothbrush head 100. The second brush filaments 153 include a first bundle 1531, a second bundle 1532, a third bundle 1533, a fourth bundle 1534 and a fifth bundle 1535 which are spaced apart from each other. The first bundle 1531 is disposed between the first group 1311 and the third group 1313 to separate the first group 1311 from the third group 1313, the second bundle 1532 is disposed between the first group 1311 and the fourth group 1314 to separate the first group 1311 from the fourth group 1314, the third bundle 1533 is disposed between the second group 1312 and the third group 1313 to separate the second group 1312 from the third group 1313, the fourth bundle 1534 is disposed between the second group 1312 and the fourth group 1314 to separate the second group 1312 from the fourth group 1314, and the fifth bundle 1535 is disposed between the third group 1313 and the fourth group 1314 to separate the third group 1313 from the fourth group 1314. No first brush filaments 13 are arranged between the second brush filaments 153 of the first bundle 1531 to the fifth bundle 1535, and the second brush filaments 153 of the first bundle 1531 to the fifth bundle 1535 are arranged between the first group 1311 and the second group 1312 to separate the first group 1311 from the second group 1312. In this embodiment, each second brush filament 153 can separate at least two adjacent groups of first brush filaments 13, and multiple bundles of second brush filaments 153 can be arranged in the middle of the brush plate 11, and the first brush filaments 13 are arranged around the second brush filaments 153. Compared with the solution in which the second brush filaments 153 are arranged at the edge of the brush plate 11, the multiple bundles of second brush filaments 153 located in the middle of the brush plate 11 can better separate the first brush filaments 13, so that the first brush filaments 13 are evenly distributed on the surface of the brush plate 11, so that the first brush filaments 13 at various locations can be used to clean the surface of the portion to be cleaned. The hair bundles 131 of the first brush filaments 13 and the hair bundles 1530 of the second brush filaments 153 with different functions are arranged at intervals, that is, the hair bundles 131 of the first brush filaments 13 clean the part to be cleaned (such as teeth), and the hair bundles 1530 of the second brush filaments 153 polish the part to be cleaned. The hair bundles 131 of the first brush filaments 13 and the hair bundles 1530 of the second brush filaments 153 arranged at intervals can make the brush plate 10 have different cleaning effects. At the same time, the first brush filaments 13 are respectively arranged in different installation areas 1011 formed by the second brush filaments 153, so that the first brush filaments 13 and the second brush filaments 153 can be intertwined with each other, forming a mutual integration state of you in me and me in you, and the cleaning and polishing of the part to be cleaned can be intertwined.

[0087] See also Figure 2 In some embodiments, the first brush filaments 13 and the second brush filaments 153 are made of different materials.

[0088] Specifically, the first brush 13 and the second brush 153 are made of different materials, so the functions that the first brush 13 and the second brush 153 can achieve are also different. In one example, the first brush 13 is made of hard nylon material, and the buffer 151 and the second brush 153 are made of soft silicone material. The different materials of the first brush 13 and the second brush 153 allow the electric toothbrush head 100 to have different cleaning methods (cleaning and polishing) for the cleaning part, thereby achieving better care effects, which is more in line with the current user's diversified needs for oral care effects.

[0089] Please continue reading Figure 2 In some embodiments, the hardness of the first brush filaments 13 is greater than that of the second brush filaments 153 . Under the same force, the deformation of the second brush filaments 153 is greater than that of the first brush filaments 13 .

[0090] Specifically, the hardness of the first brush filament 13 is greater than that of the second brush filament 153. Under the same force, the deformation of the second brush filament 153 is greater than that of the first brush filament 13. When the hardness of the first brush filament 13 is greater than that of the second brush filament 153, the first brush filament 13 can be used to clean hard parts to be cleaned (such as teeth), and the second brush filament 153 can clean both hard parts to be cleaned and flexible parts to be cleaned (such as gums or the inner wall of the oral cavity), avoiding damage to the flexible parts to be cleaned.

[0091] Please continue reading Figure 2 In some embodiments, the friction between the first brush filaments 13 and the part to be cleaned (eg, teeth) is smaller than the friction between the second brush filaments 153 and the part to be cleaned.

[0092] Specifically, the second brush 153 may have a pattern on the surface that increases friction, or may be made of a material with a larger friction coefficient, which is not limited here. Since the friction between the first brush 13 and the portion to be cleaned is small, the first brush 13 will not excessively scratch the surface to be cleaned of the portion to be cleaned, thereby avoiding damage to the surface to be cleaned of the portion to be cleaned. The friction between the second brush 153 and the portion to be cleaned is large, so the second brush 153 can fully rub against the surface to be cleaned of the portion to be cleaned to polish the surface to be cleaned of the portion to be cleaned to care for the portion to be cleaned.

[0093] Please continue reading Figure 2 In some embodiments, the hardness of the deformable member 15 is less than the hardness of the brush plate 11 .

[0094] Specifically, the deformable member 15 and the brush plate 11 can be made of different materials with different hardness, or can be made of the same material with different hardness. Under the same force, the deformation of the deformable member 15 is greater than that of the brush plate 11. The hardness of the brush plate 11 is greater than the hardness of the deformable member 15, which enables the brush plate 11 to better support the first brush filament 13. The hardness of the deformable member 15 is less than the hardness of the brush plate 11, which can provide a buffering effect when the deformable member 15 contacts the part to be cleaned, thereby preventing the deformable member 15 from bumping and damaging the part to be cleaned.

[0095] Please continue reading Figure 2 In some embodiments, the deformable member 15 is made of soft rubber and the brush plate 11 is made of hard rubber.

[0096] Furthermore, the deformable member 15 is a soft rubber, and when the deformable member 15 contacts the part to be cleaned, the deformable member 15 can provide a buffering effect to prevent the deformable member 15 from bumping and damaging the part to be cleaned. The brush plate 11 is a hard rubber, and the brush plate 11 can better support the first brush filament 13.

[0097] See also Figure 2 and Figure 3 In some embodiments, the electric toothbrush head 100 further includes a third bristle filament 17. The brush plate 11 includes a first bristle implantation portion 111, a second bristle implantation portion 113 and a connecting portion 115. The second bristle implantation portion 113 is disposed on one side of the first bristle implantation portion 111 in the width direction Y of the brush plate 11, and is spaced apart from the first bristle implantation portion 111. The length of the first bristle implantation portion 111 is different from the length of the second bristle implantation portion 113. The first bristle filament 13 is disposed in the first bristle implantation portion 111. The third bristle filament 17 is disposed in the second bristle implantation portion 113. The connecting portion 115 is disposed in the interval between the adjacent first bristle implantation portion 111 and the second bristle implantation portion 113, and is used to connect the first bristle implantation portion 111 and the second bristle implantation portion 113.

[0098] Specifically, the first hair implanting portion 111 is a partial structure of the brush plate 11 for mounting the first brush filament 13. The second hair implanting portion 113 is a partial structure of the brush plate 11 for mounting the third brush filament 17. The number of the first hair implanting portion 111 or the second hair implanting portion 113 can be one or more, and is not limited here. The first hair implanting portion 111 and the second hair implanting portion 113 are both curved structures protruding from the first surface 101 to the second surface 103. The degree of curvature of the first hair implanting portion 111 and the second hair implanting portion 113 can be the same or different. The first surface of the first hair-implanted portion 111 is a part of the first surface 101 of the brush plate 11, and the second surface of the first hair-implanted portion 111 is a part of the second surface 103 of the brush plate 11. The first surface of the second hair-implanted portion 113 is a part of the first surface 101 of the brush plate 11, and the second surface of the second hair-implanted portion 113 is a part of the second surface 103 of the brush plate 11. The first surface of the first hair-implanted portion 111 and the first surface of the second hair-implanted portion 113 together form the first surface 101 of the brush plate 11, and the second surface of the first hair-implanted portion 111 and the second surface of the second hair-implanted portion 113 together form the second surface 103 of the brush plate 11.

[0099] The arrangement of the first hair-planting portion 111 and the second hair-planting portion 113 allows the electric toothbrush 1000 ( Figure 7 The vibration effects transmitted by the driving member to the first hair-implanted portion 111 and the second hair-implanted portion 113 are different, so that the first brush filaments 13 on the first hair-implanted portion 111 and the third brush filaments 17 on the second hair-implanted portion 113 have different vibration effects, thereby matching the vibration transmission requirements of different surfaces to be cleaned of the part to be cleaned (such as teeth), thereby better cleaning the oral cavity.

[0100] See also Figure 3 In some embodiments, the length of the first hair implantation portion 111 is greater than the length of the second hair implantation portion 113 .

[0101] Specifically, the length of the first implanted hair portion 111 is greater than that of the second implanted hair portion 113, so that the first implanted hair portion 111 can penetrate deeper into the oral cavity, with a larger cleaning range, which is beneficial for cleaning the deep part of the oral cavity, and more first bristles 13 can be arranged on the first implanted hair portion 111 in the length direction X to improve the cleaning ability. The length of the second implanted hair portion 113 is less than that of the first implanted hair portion 111, so that the second implanted hair portion 113 can avoid the gums when cleaning the oral cavity, and avoid bumping against the part to be cleaned (such as teeth).

[0102] See also Figure 3 In some embodiments, the width of the first hair implantation portion 111 is greater than the width of the second hair implantation portion 113 .

[0103] Specifically, the width of the first hair implantation portion 111 is greater than the width of the second hair implantation portion 113, so that the first hair implantation portion 111 can have a larger cleaning range in the width direction Y, thereby improving the cleaning efficiency of the first hair implantation portion 111, and can also allow the first hair implantation portion 111 to be provided with more first brush filaments 13 in the width direction Y to improve the cleaning ability. The width of the second hair implantation portion 113 is less than the width of the first hair implantation portion 111, so that the second hair implantation portion 113 can avoid the gums when cleaning the oral cavity, thereby avoiding collision with the part to be cleaned (such as teeth).

[0104] See also Figure 2 and Figure 3 In some embodiments, the free end surface 1311 of the bristle bundle 131 in the first brush filament 13 is at the same distance from the first surface 101 .

[0105] Specifically, the hair bundles 131 in the first brush filaments 13 include two end faces, wherein the end face away from the first surface 101 is a free end face 1311. The free end faces 1311 of all hair bundles 131 in the first brush filaments 13 are at the same distance from the first surface 101. When the hair bundle cross-sectional areas in the first brush filaments 13 are the same, the hair bundles 131 in the first brush filaments 13 have the same degree of freedom. When subjected to the same external force, the deformation capabilities of the free end faces 1311 of the hair bundles 131 in the first brush filaments 13 converge, which can make the brushing feel of the hair bundles 131 in the first brush filaments 13 the same, improve the user experience, and also make the hair bundles 131 in the first brush filaments 13 wear synchronously during use, which helps to maintain the service life of the electric toothbrush head 100.

[0106] See also Figure 2 and Figure 4 In some embodiments, in the first brush filament 13, the distance between the free end surface 1311 of the hair bundle 131 located at the edge of the first hair implantation portion 111 and the first surface 101 is smaller than the distance between the free end surface 1311 of the hair bundle 131 located at the center of the first hair implantation portion 111 and the first surface 101, that is, the length of the hair bundle 131 located at the center of the first hair implantation portion 111 is greater than the length of the hair bundle 131 located at the edge of the first hair implantation portion 111.

[0107] It can be understood that the hair bundles 131 located at the edge of the first hair-implanted portion 111 surround the hair bundles 131 located at the center of the first hair-implanted portion 111. When the electric toothbrush head 100 contacts the portion to be cleaned, the longer hair bundles 131 located at the center of the first brush filaments 13 will first contact the portion to be cleaned and deform and bend, and then the shorter hair bundles 131 located at the edge of the first hair-implanted portion 111 will contact the portion to be cleaned. The hair bundles 131 at the center of the first hair-implanted portion 111 are longer than the hair bundles 131 at the edge, and the hair bundles 131 at the center of the first hair-implanted portion 111 can more easily reach into the pits and fissures deep in the oral cavity and clean the pits and fissures, which can improve the cleaning effect of the pits and fissures.

[0108] See also Figure 2 and Figure 4 In some embodiments, there are two second hair-implanting portions 113, and the two second hair-implanting portions 113 are respectively arranged on both sides of the first hair-implanting portion 111 in the width direction Y of the brush plate 11. The free end surfaces 1711 of the hair bundles 171 in the third brush filaments 17 on the two second hair-implanting portions 113 are at the same distance from the first surface 101.

[0109] Specifically, the two second hair-implanted portions 113 are respectively arranged on both sides of the first hair-implanted portion 111 in the width direction Y of the brush plate 11, so that the second hair-implanted portions 113 can better wrap and clean the surface to be cleaned (such as the side of the teeth) of the part to be cleaned (such as the teeth). The free end surface 1711 of the hair bundle 171 in the third brush filament 17 on the second hair-implanted portion 113 is at the same distance from the first surface 101. When the cross-sectional area of ​​the hair bundle 171 of the third brush filament 17 is the same, the brushing feel of the hair bundle 171 in the third brush filament 17 on the two second hair-implanted portions 113 can be the same, thereby improving the user experience. It can also allow the hair bundle 171 in the third brush filament 17 to wear synchronously during use, which helps to maintain the service life of the electric toothbrush head 100.

[0110] In some embodiments, the distance between the free end surface 1711 of the bristle bundle 171 of the third brush filament 17 and the first surface 101 is smaller than the distance between the free end surface 1311 of the bristle bundle 131 of the first brush filament 13 and the first surface 101 .

[0111] Specifically, the distance between the free end surface 1311 of the bristle bundle 171 of the third brush filament 17 and the first surface 101 is smaller than the distance between the free end surface 1311 of the bristle bundle 131 in the first brush filament 13 and the first surface 101, that is, the length of any bristle bundle 171 in the bristle bundle 171 of the third brush filament 17 is smaller than the length of any bristle bundle 131 in the first brush filament 13. When the electric toothbrush head 100 cleans the part to be cleaned (such as teeth), the bristle bundle 131 in the first brush filament 13 serves as the main cleaning force to clean the middle area of ​​the part to be cleaned, and the bristle bundle 171 of the third brush filament 17 can serve as a cleaning aid to clean the edge area of ​​the part to be cleaned, and can avoid the gums close to the edge area of ​​the part to be cleaned.

[0112] See also Figure 4 In some embodiments, the bristle bundles 131 of the first brush filaments 13 and the bristle bundles 171 of the third brush filaments 17 are inclined toward the width-dividing plane D of the brush plate 11, and the inclination angle of the bristle bundles 171 of the third brush filaments 17 toward the width-dividing plane D of the brush plate 11 is greater than the inclination angle of the bristle bundles 131 of the first brush filaments 13 toward the width-dividing plane D of the brush plate 11.

[0113] Specifically, the inclination angles of different bristles 131 in the first brush filaments 13 toward the mid-width plane D of the brush plate 11 may be the same, partially the same, partially different, or completely different. The inclination angles of the bristles 171 of the third brush filaments 17 toward the mid-width plane D of the brush plate 11 may be the same, partially the same, partially different, or completely different. In one embodiment of the present application, the inclination angles of any bristle bundle 171 of the third brush filaments 17 toward the mid-width plane D of the brush plate 11 are the same. The bristle bundles 131 of the first brush filaments 13 and the bristle bundles 171 of the third brush filaments 17 are both inclined toward the mid-width plane D of the brush plate 10, so that the first brush filaments 13 and the third brush filaments 15 are in an inward shape as a whole, and the first brush filaments 13 and the third brush filaments 17 can centrally clean the central area of ​​the portion to be cleaned, and the cleaning effect of the central area of ​​the portion to be cleaned is better. The inclination angle of the bristle bundle 171 in the third brush filament 17 toward the width mid-plane D of the brush plate 10 is greater than the inclination angle of the bristle bundle 131 in the first brush filament 13 toward the width mid-plane D of the brush plate 10, so that the third brush filament 13 can avoid the gums close to the edge area of ​​the part to be cleaned to avoid damage.

[0114] See also Figure 2 In some embodiments, the first surface 101 of the first hair implanting portion 111 is provided with a first hair implanting hole 1111, and the first surface 101 of the second hair implanting portion 113 is provided with a second hair implanting hole 1131; the first brush filament 13 has copper hair implanted in the first hair implanting hole 1111, and the hair bundle 171 of the third brush filament 17 is non-copper-implanted in the second hair implanting hole 1131.

[0115] Specifically, the first brush filament 13 is pressed tightly in the first bristle hole 1111 by the copper sheet, and the third brush filament 17 passes through the second bristle hole 1131 and is glued to the second surface 103 of the brush plate 11, so that the fixed end of the first brush filament 13 is more firmly connected to the brush plate 11 than the fixed end of the third brush filament 17. When subjected to reverse pressure from the part to be cleaned, the third brush filament 17 is more easily deformed. Even if the third brush filament 17 touches the gums close to the edge area of ​​the part to be cleaned, it will not over-stimulate the gums and cause gum damage.

[0116] See also Figure 2 and Figure 7 The electric toothbrush 1000 of the embodiment of the present application includes the electric toothbrush head 100 and the brush handle 300 of any of the above embodiments, and the electric toothbrush head 100 is installed on the brush handle 300.

[0117] In the electric toothbrush 1000 of the present application, the brush plate 11 is a curved structure protruding from the first surface 101 to the second surface 103, which conforms to the natural curve of the part to be cleaned (such as teeth), and has a better fit effect on the side of the part to be cleaned (such as teeth), thereby improving the cleaning effect of the side of the part to be cleaned (such as teeth). In addition, the curved structure can avoid the gums and reduce the risk of gum damage.

[0118] 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.

[0119] 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: Rod body; A brush body connected to the rod body, the brush body comprising a brush plate, along the thickness direction of the brush body, the brush plate comprising a first surface and a second surface opposite to each other, the brush plate being a curved structure protruding from the first surface to the second surface, the brush body comprising a deformable member, the deformable member comprising a buffer portion, the buffer portion covering at least a portion of the brush plate and / or at least a portion of the rod body; and A plurality of groups of first brush filaments are arranged on the brush plate at intervals and protrude and extend from the first surface toward a side away from the second surface.

2. The electric toothbrush head according to claim 1, characterized in that: Each group of the first brush filaments includes a plurality of mutually spaced bristle bundles; In the same group of the first brush filaments, the extension directions of the plurality of the bristle bundles are the same, and the extension directions of at least two groups of the first brush filaments intersect; or, In the same group of the first brush filaments, the extension directions of the plurality of bristle bundles are different, and one bristle bundle in a group of the first brush filaments at least intersects with one bristle bundle in any group of the first brush filaments except the current group; or, In the same group of the first brush filaments, the extension directions of the plurality of bristle bundles are different, and the extension directions of at least two of the bristle bundles intersect.

3. The electric toothbrush head according to claim 1, characterized in that: The buffer portion includes a first surface and a second surface opposite to each other, the first surface and the first surface are located on the same side of the brush body, and the buffer portion is a curved structure protruding from the first surface to the second surface.

4. The electric toothbrush head according to claim 3, characterized in that: The curvature of the brush plate is different from that of the buffer portion, and in the width direction of the brush body, the thickness of the buffer portion increases first and then decreases.

5. The electric toothbrush head according to claim 1, characterized in that: The deformable member further includes a second brush filament, which protrudes and extends from the buffer portion and passes through the second surface of the brush plate to the first surface of the brush plate, and the second brush filament is spaced apart from the first brush filament.

6. The electric toothbrush head according to claim 5, characterized in that: The deformable member is a rubber-coated member formed integrally with the second brush filament and the buffer portion.

7. The electric toothbrush head according to claim 5, characterized in that: Each group of the first brush filaments includes a plurality of mutually spaced bristle bundles, and the second brush filaments include a plurality of mutually spaced bristle bundles; the shape of the cross section of the bristle bundles in the second brush filaments is different from the shape of the cross section of the bristle bundles in the first brush filaments.

8. The electric toothbrush head according to claim 5, characterized in that: The second brush filaments include a plurality of mutually spaced bristle bundles; at least two of the bristle bundles of the second brush filaments form an installation area, and a plurality of groups of the first brush filaments are respectively arranged in different installation areas.

9. The electric toothbrush head according to claim 5, characterized in that: The first brush filaments and the second brush filaments are made of different materials; and / or The hardness of the first brush filament is greater than that of the second brush filament, and under the same force, the deformation of the second brush filament is greater than that of the first brush filament; and / or, The friction force between the first brush filaments and the portion to be cleaned is smaller than the friction force between the second brush filaments and the portion to be cleaned.

10. The electric toothbrush head according to claim 1, characterized in that: The hardness of the deformable member is less than the hardness of the brush plate.

11. The electric toothbrush head according to claim 1, characterized in that: The deformable member is made of soft rubber, and the brush plate is made of hard rubber.

12. The electric toothbrush head according to claim 1, characterized in that: The electric toothbrush head also includes a third brush filament, and the brush plate includes a first hair-planting portion, a second hair-planting portion and a connecting portion, the second hair-planting portion is arranged on one side of the first hair-planting portion in the width direction of the brush plate, and is spaced apart from the first hair-planting portion, the length of the first hair-planting portion is different from the length of the second hair-planting portion, the first brush filament is arranged in the first hair-planting portion, the third brush filament is arranged in the second hair-planting portion, and the connecting portion is arranged in the gap between the adjacent first hair-planting portion and the second hair-planting portion, and is used to connect the first hair-planting portion and the second hair-planting portion.

13. The electric toothbrush head according to claim 12, characterized in that: The length of the first hair implantation portion is greater than the length of the second hair implantation portion; and / or the width of the first hair implantation portion is greater than the width of the second hair implantation portion.

14. The electric toothbrush head according to claim 12, characterized in that: Each group of the first brush filaments includes a plurality of mutually spaced bristle bundles; The free end faces of the hair bundles in the first brush filaments are at the same distance from the first surface; or, In the first brush filament, the distance between the free end surface of the hair bundle located at the edge of the first hair-implanted portion and the first surface is smaller than the distance between the free end surface of the hair bundle located at the center of the first hair-implanted portion and the first surface.

15. The electric toothbrush head according to claim 12, characterized in that: There are two second hair-implanted parts, which are respectively arranged on both sides of the first hair-implanted part in the width direction of the brush plate, and the free end faces of the hair bundles in the third brush filaments on the two second hair-implanted parts are at the same distance from the first surface.

16. The electric toothbrush head according to claim 12, characterized in that: The distance between the free end surface of the bristle bundle in the third brush filament and the first surface is smaller than the distance between the free end surface of the bristle bundle in the first brush filament and the first surface.

17. The electric toothbrush head according to claim 12, characterized in that: The hair bundles in the first and third brush filaments are inclined toward the median width of the brush plate, and the inclination angle of the hair bundles in the third brush filaments toward the median width of the brush plate is greater than the inclination angle of the hair bundles in the first brush filaments toward the median width of the brush plate.

18. The electric toothbrush head according to claim 12, characterized in that: The first surface of the first hair implanting part is provided with a first hair implanting hole, and the first surface of the second hair implanting part is provided with a second hair implanting hole; the first brush wire has copper hair implanted in the first hair implanting hole, and the third brush wire has no copper hair implanted in the second hair implanting hole.

19. An electric toothbrush, characterized in that: Include: The electric toothbrush head according to any one of claims 1 to 18, and A brush handle, wherein the electric toothbrush head is mounted on the brush handle.

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