Brush handle and electric toothbrush

Abstract

The embodiment of the utility model provides a brush handle and an electric toothbrush. The brush handle comprises a handle shell, a plurality of image acquisition modules and a light-transmitting part. The handle shell comprises a first end face, a second end face, a side face, a holding area and a non-holding area, wherein the first end face and the second end face are opposite to each other, and the side face is connected with the first end face and the second end face. At least one image acquisition module is arranged in the non-holding area, the non-holding area comprises a first non-holding area and / or a second non-holding area, the first non-holding area comprises a first end face and at least part of side face extending from the first end face to the second end face, and the length of part of the side face of the first non-holding area is 1 / 5-1 / 2 of the length of the whole side face. The second non-holding area comprises a second end face and at least part of side face extending from the second end face to the first end face, and the length of part of the side face of the second non-holding area is 1 / 5-1 / 3 of the length of the whole side face. The light transmitting part is arranged on the handle shell, and light outside the brush handle can be transmitted to the image acquisition module through the light transmitting part.

Description

Technical Field

[0001] This application relates to the field of oral care technology, specifically to a brush handle and an electric toothbrush. Background Technology

[0002] An electric toothbrush is an electronic device used for oral cleaning. As electric toothbrushes become increasingly intelligent, they typically incorporate image capture modules (such as cameras) to collect user movement and other information, enabling more accurate determination of the user's brushing position or posture. However, when the image capture module is located on the toothbrush handle, the user's grip may obstruct it, preventing the module from acquiring images and affecting its normal operation. Utility Model Content

[0003] This application provides a brush handle and an electric toothbrush to solve at least one of the aforementioned technical problems.

[0004] The brush handle of this application embodiment is used for an electric toothbrush. The brush handle includes a handle shell, multiple image acquisition modules, and a light-transmitting element. The handle shell includes a first end face and a second end face facing away from each other, and a side face connecting the first end face and the second end face. The handle shell also includes a gripping area and a non-grip area. At least one of the image acquisition modules is disposed in the non-grip area. The non-grip area includes a first non-grip area and / or a second non-grip area. The first non-grip area includes the first end face and at least a portion of the side face extending from the first end face to the second end face. The length of the portion of the side face of the first non-grip area is 1 / 5 to 1 / 2 of the total length of the side face. The second non-grip area includes the second end face and at least a portion of the side face extending from the second end face to the first end face. The length of the portion of the side face of the second non-grip area is 1 / 5 to 1 / 3 of the total length of the side face. Light from outside the brush handle can be transmitted to the image acquisition modules through the light-transmitting element.

[0005] In the brush handle of this application embodiment, there are multiple image acquisition modules, and at least one image acquisition module is provided in the non-grip area. In this way, when the user holds the electric toothbrush, all image acquisition modules will not be blocked, thereby ensuring that at least one image acquisition module can collect information and ensuring the stability and reliability of the electric toothbrush operation.

[0006] In some embodiments, the brush handle further includes a mechanism disposed within the handle housing, the mechanism having an output shaft extending from the first end face for mounting an electric toothbrush head. A plurality of the image acquisition modules surround the axis of the brush handle and are disposed on the first end face.

[0007] Specifically, the electric toothbrush head is located on one side of the first end face of the handle housing. Therefore, the multiple image acquisition modules in this embodiment, arranged around the axis of the handle and on the first end face, allow the image acquisition modules to easily capture images of the electric toothbrush head, enabling the acquisition of user motion information or other information, thereby reducing the field-of-view requirements of the image acquisition modules.

[0008] In some embodiments, the brush handle further includes a mechanism disposed within the handle housing, the mechanism having an output shaft extending from the first end face and used to mount an electric toothbrush head. A plurality of the image acquisition modules surround the axis of the brush handle and are disposed between the first end face and the second end face.

[0009] Specifically, multiple image acquisition modules may surround the axis of the brush handle and be disposed on a portion of the side of the first non-grip area; or, multiple image acquisition modules may surround the axis of the brush handle and be disposed on a portion of the side of the second non-grip area, and the field of view of the image acquisition modules must cover at least a portion of the electric toothbrush head, that is, the image acquisition modules must capture at least a portion of the electric toothbrush head, thereby ensuring that the image acquisition modules can capture images of the electric toothbrush head to realize the collection of user action information or other information.

[0010] In some embodiments, the brush handle further includes a mechanism disposed within the handle housing, the mechanism having an output shaft extending from the first end face and used to mount an electric toothbrush head. A plurality of the image acquisition modules are disposed between the first and second end faces along the axial direction of the brush handle.

[0011] Specifically, in some embodiments, multiple image acquisition modules may be disposed along the axial direction of the brush handle on a portion of the side surface of the first non-grip area and / or a portion of the side surface of the second non-grip area. In other embodiments, multiple image acquisition modules may be disposed along the axial direction of the brush handle on a portion of the side surface of the first non-grip area and the grip area; and / or, along the axial direction of the brush handle on a portion of the side surface of the second non-grip area and the grip area.

[0012] In some embodiments, when multiple image acquisition modules are arranged around the axis of the brush handle and on the first end face, the distance between two adjacent image acquisition modules is 0.3mm-30mm.

[0013] If the distance between two adjacent image acquisition modules is less than 0.3mm, it will result in an excessive number of image acquisition modules, leading to excessively high costs for the electric toothbrush. Furthermore, it will cause significant overlap and redundancy in the images acquired by multiple image acquisition modules, increasing the burden on the circuit board for data processing and storage. If the distance between two adjacent image acquisition modules is greater than 30mm, it may result in blind spots between the images acquired by the two adjacent modules, making it impossible to locate the user's mouth using the images acquired by the two adjacent modules. In some embodiments of this application, the distance between two adjacent image acquisition modules is 0.3mm-30mm. This prevents an excessive number of image acquisition modules, reducing the cost of the electric toothbrush; it also prevents significant overlap and redundancy in the images acquired by multiple image acquisition modules, thereby reducing the burden on the circuit board for data processing and storage; and it also prevents blind spots between the images acquired by the two adjacent modules. This ensures that the circuit board can locate the user's mouth using the images acquired by the two adjacent modules, thus improving the accuracy of the circuit board in determining the user's brushing position or brushing posture.

[0014] In some embodiments, when multiple image acquisition modules are arranged around the axis of the brush handle and on the first end face, the included angle between two adjacent image acquisition modules and the axis of the handle housing ranges from 0° to 180°.

[0015] If the angle between two adjacent image acquisition modules and the axis of the handle housing exceeds 180°, blind spots may exist between the images acquired by the two adjacent image acquisition modules, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules. However, in some embodiments of this application, the angle between two adjacent image acquisition modules and the axis of the handle housing is 0°-180°, thereby preventing blind spots between the images acquired by the two adjacent image acquisition modules and ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules.

[0016] In some embodiments, the non-grip area includes a tapered portion, the tapered portion having a first end and a second end opposite to each other, the output shaft of the mechanism extending from the first end of the tapered portion, the cross-sectional area of ​​the tapered portion gradually increasing in the direction from the first end to the second end of the tapered portion, and multiple image acquisition modules being disposed in the tapered portion.

[0017] Specifically, in some embodiments, the tapered portion may further include an outer peripheral surface located between the first end and the second end. The first end face may include the first end of the tapered portion and the outer peripheral surface of the tapered portion. Since the cross-sectional area of ​​the tapered portion gradually increases from the first end to the second end, the outer peripheral surface of the tapered portion can be an inclined structure. Therefore, when fluid generated during the use of the electric toothbrush flows along the electric toothbrush head to the outer peripheral surface of the tapered portion, the fluid will flow quickly across the tapered portion, preventing fluid accumulation on the tapered portion and thus preventing obstruction of the image acquisition module, thereby ensuring the normal operation of the image acquisition module.

[0018] In some embodiments, where multiple image acquisition modules surround the axis of the brush handle and are disposed between the first end face and the second end face, the included angle between two adjacent image acquisition modules ranges from 0° to 180°.

[0019] If multiple image acquisition modules are arranged around the axis of the brush handle and between the first and second end faces, and the included angle between two adjacent image acquisition modules is greater than 180°, blind spots may exist between the images acquired by the adjacent image acquisition modules, making it impossible to locate the user's mouth using the images acquired by the adjacent image acquisition modules. However, in some embodiments of this application, when multiple image acquisition modules are arranged around the axis of the brush handle and between the first and second end faces, the included angle between two adjacent image acquisition modules is 0°-180°. This prevents blind spots between the images acquired by the adjacent image acquisition modules, thereby ensuring that the circuit board can locate the user's mouth using the images acquired by the adjacent image acquisition modules.

[0020] In some embodiments, when multiple image acquisition modules are arranged between the first end face and the second end face along the axial direction of the brush handle, the distance between two adjacent image acquisition modules is less than 200 mm.

[0021] If multiple image acquisition modules are arranged along the axis of the brush handle between the first and second end faces, and the distance between two adjacent image acquisition modules is greater than 200mm, blind spots may exist between the images acquired by the adjacent image acquisition modules, making it impossible to locate the user's mouth using the images acquired by the adjacent image acquisition modules. However, in some embodiments of this application, when multiple image acquisition modules are arranged along the axis of the brush handle between the first and second end faces, the distance between two adjacent image acquisition modules is less than 200mm. This prevents blind spots between the images acquired by the adjacent image acquisition modules, thereby ensuring that the circuit board can locate the user's mouth using the images acquired by the adjacent image acquisition modules.

[0022] In some embodiments, the brush handle further includes a control key, which is disposed on the handle housing and electrically connected to the mechanism. The control key and the light-transmitting element are located on opposite sides of the handle housing in a direction perpendicular to the axis of the brush handle. This arrangement of the control key and the light-transmitting element on opposite sides of the handle housing reduces the possibility of the user obstructing the image acquisition module when operating the control key, thereby ensuring that the image acquisition module can acquire images.

[0023] In some embodiments, the grip area connects the first non-grip area and / or the second non-grip area, and the grip area is provided with at least one of the image acquisition modules. Thus, even when the user does not hold the electric toothbrush in a conventional way, i.e., when the user does not hold the electric toothbrush through the grip area, at least one image acquisition module can still acquire images.

[0024] In some embodiments, the grip area is provided with a plurality of the image acquisition modules, which surround the axis of the brush handle.

[0025] In some embodiments, the gripping area is provided with a plurality of image acquisition modules, which are arranged along the axial direction of the brush handle.

[0026] In some embodiments, the light-transmitting element protrudes relative to the outer surface of the handle housing, at least a portion of the plurality of image acquisition modules protrudes from the outer surface of the handle housing, and the field of view of the image acquisition modules covers at least a portion of the electric toothbrush head. This guides the user to hold the toothbrush at a specific position on the handle housing, reducing the possibility of the user obstructing the image acquisition modules while holding the electric toothbrush, and ensuring the normal operation of the image acquisition modules. Furthermore, the protrusion of the light-transmitting element relative to the outer surface of the handle housing also reduces the possibility of fluid accumulation on the light-transmitting element during user use, thereby ensuring that light from outside the handle can be transmitted to the image acquisition modules through the light-transmitting element.

[0027] In some implementations, the angle between the optical axes of two adjacent image acquisition modules ranges from 0° to 180°.

[0028] If the angle between the optical axes of two adjacent image acquisition modules exceeds 180°, blind spots may exist between the images acquired by the two adjacent modules, making it impossible to locate the user's mouth using the images acquired by the two adjacent modules. However, in some embodiments of this application, the angle between the optical axes of two adjacent image acquisition modules is 0°-180°, thereby preventing blind spots between the images acquired by the two adjacent modules and ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent modules. Furthermore, compared to the optical axes of two adjacent image acquisition modules coinciding, an angle between the optical axes of two adjacent image acquisition modules ranging from 0°-180° also increases the field of view of the image acquisition modules, allowing the image acquisition modules to obtain more effective information, thereby improving the accuracy of the circuit board in determining the user's brushing position or brushing posture.

[0029] In some embodiments, the brush handle further includes a control key; in a direction perpendicular to the axis of the brush handle, the handle housing includes a first surface and a second surface facing away from each other, and the control key is disposed on the first surface; the length of the first non-grip area on the first surface is less than the length of the first non-grip area on the second surface. That is, on the side where the control key is located (i.e., the first surface), the length of the first non-grip area is shorter, and on the side behind the control key (i.e., the second surface), the length of the first non-grip area is longer. This reduces the possibility of the user obstructing the image acquisition module on the first non-grip area when operating the control key, thereby ensuring that at least one image acquisition module can acquire information.

[0030] In some embodiments, the brush handle further includes a control key; in a direction perpendicular to the axis of the brush handle, the handle housing includes a first surface and a second surface facing away from each other, and the control key is disposed on the first surface; the length of the second non-grip area on the first surface is less than the length of the second non-grip area on the second surface. That is, on the side where the control key is located (i.e., the first surface), the length of the second non-grip area is shorter, and on the side behind the control key (i.e., the second surface), the length of the second non-grip area is longer. This reduces the possibility of the user obstructing the image acquisition module on the second non-grip area when operating the control key, thereby ensuring that at least one image acquisition module can acquire information.

[0031] In some embodiments, a hydrophobic film is provided on the outer surface of the light-transmitting element. The hydrophobic film reduces fluid adhesion to the outer surface of the light-transmitting element, ensuring that light from outside the brush handle can be transmitted through the light-transmitting element to the image acquisition module.

[0032] The electric toothbrush provided in this application includes the brush handle and electric toothbrush head described in any of the above embodiments, wherein the electric toothbrush head is connected to the brush handle.

[0033] In the electric toothbrush of this application embodiment, there are multiple image acquisition modules, and at least one image acquisition module is provided in the non-holding area. In this way, when the user holds the electric toothbrush, all image acquisition modules will not be obstructed, thereby ensuring that at least one image acquisition module can collect information and ensuring the stability and reliability of the electric toothbrush operation.

[0034] The above description is merely an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below. Attached Figure Description

[0035] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0036] Figure 1 This is a three-dimensional structural schematic diagram of an electric toothbrush according to some embodiments of this application;

[0037] Figure 2 yes Figure 1 A cross-sectional schematic diagram of an electric toothbrush is shown.

[0038] Figure 3 This is a schematic diagram of a user holding an electric toothbrush according to certain embodiments of this application;

[0039] Figure 4 This is a three-dimensional structural diagram of the handle in an electric toothbrush according to other embodiments of this application;

[0040] Figure 5 yes Figure 4 A schematic diagram of the planar structure of an electric toothbrush is shown.

[0041] Figure 6 This is a schematic diagram of the structure of the handle in an electric toothbrush according to some embodiments of this application;

[0042] Figure 7 This is a schematic diagram of the structure of the brush handle in an electric toothbrush according to some embodiments of this application;

[0043] Figure 8 This is a schematic diagram of the brush handle structure in an electric toothbrush according to some embodiments of this application.

[0044] Description of main component symbols:

[0045] 100 electric toothbrushes;

[0046] 10. Handle; 30. Electric toothbrush head; 31. Brush bristles; 33. Handle body;

[0047] 11 Handle housing; 111 First end face; 113 Second end face; 115 Side face; 117 Grip area; 118 Non-grip area; 1181 First non-grip area; 1183 Second non-grip area; 119 Tapered section; 1191 First end of tapered section; 1193 Second end of tapered section; 1195 Outer peripheral surface of tapered section;

[0048] 13 Image acquisition module; 15 Light-transmitting component; 17 Mechanism; 171 Motor; 173 Output shaft; 19 Control keys. Detailed Implementation

[0049] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of this application, and should not be construed as limiting the embodiments of this application.

[0050] In the description of this application, it should be understood that the terms "thickness," "upper," "top," "bottom," "inner," "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly. In one example, they can be a fixed connection, a detachable connection, or an integral connection; they can be a mechanical connection, an electrical connection, or a connection that allows communication between them; they can be a direct connection or an indirect connection through an intermediate medium; they can be the internal connection of two elements or the interaction between two elements.

[0052] An electric toothbrush is an electronic device used for oral cleaning. As electric toothbrushes become increasingly intelligent, they typically incorporate image acquisition modules (such as cameras) to capture user movement and other information, enabling more accurate determination of brushing position and posture. However, when the image acquisition module is located on the toothbrush handle, the user's grip may obstruct it, preventing the module from acquiring images and affecting its normal operation. To resolve this issue, please refer to [link to relevant documentation]. Figure 1 and Figure 2 ,or Figure 4 and Figure 5 ,or Figure 6 This application provides a brush handle 10 and an electric toothbrush 100.

[0053] Please see Figure 1 The electric toothbrush 100 of certain embodiments of this application includes a handle 10 and an electric toothbrush head 30, with the electric toothbrush head 30 connected to the handle 10. Specifically, when the electric toothbrush 100 is operating normally, the handle 10 can drive the electric toothbrush head 30 to vibrate at a high frequency. Thus, the electric toothbrush 100 can clean the areas in the mouth that need cleaning through the high-frequency vibration of the electric toothbrush head 30. For example, the areas in the mouth that need cleaning may include, but are not limited to, the tooth surfaces, interdental spaces, and gums. The electric toothbrush head 30 and the handle 10 can be connected in a detachable manner. This facilitates the replacement of electric toothbrush heads 30 with different models or materials, and also allows for easy replacement of the electric toothbrush head 30 when its cleaning effect decreases due to prolonged use, thereby ensuring the cleaning effect of the electric toothbrush 100.

[0054] The electric toothbrush 100 includes, but is not limited to, sonic toothbrushes, ultrasonic toothbrushes, plug-in electric toothbrushes, and battery-powered electric toothbrushes. In some embodiments, the electric toothbrush head 30 includes bristles 31 and a handle 33. The bristles 31 are used to clean teeth. The material of the bristles 31 may be, but is not limited to, nylon, rubber, or boar bristles. Preferably, the bristles 31 may have good toughness and elasticity, thereby enabling better cleaning of the areas to be cleaned in the oral cavity. The handle 10 includes a mechanism 17, which is equipped with a motor 171. One end of the handle 33 is detachably connected to the output shaft 173 of the motor 171, and the other end is provided with bristles 31. The handle 33 is generally elongated, which facilitates the insertion of the handle 33 into the oral cavity so that the bristles 31 can reach the areas to be cleaned in the oral cavity, thereby ensuring the cleaning effect of the electric toothbrush 100.

[0055] Furthermore, in some embodiments, the brush handle 10 includes a mechanism 17 and a circuit board, and the motor 171 and the circuit board can be electrically connected by components such as wires, copper busbars, or springs. When the electric toothbrush 100 is started, the circuit board can send a control signal to the motor 171 to control the vibration of the output shaft 173 of the motor 171 and drive the electric toothbrush head 30 to vibrate.

[0056] Since the electric toothbrush 100 in this embodiment includes a handle 10, it is understood that the electric toothbrush 100 has at least the same beneficial effects as the handle 10. Therefore, for the beneficial effects of the electric toothbrush 100, please refer to the beneficial effects of the handle 10 described below.

[0057] Please see Figure 1 and Figure 2 The brush handle 10 of certain embodiments of this application is used in an electric toothbrush 100. The brush handle 10 includes a handle housing 11, a plurality of image acquisition modules 13, and a light-transmitting element 15. The handle housing 11 includes a first end face 111 and a second end face 113 facing away from each other, and a side face 115 connecting the first end face 111 and the second end face 113. The handle housing 11 also includes a gripping area 117 and a non-grip area 118 in contact. At least one image acquisition module 13 is provided in at least the non-grip area 118. The non-grip area 118 includes a first non-grip area 1181 and / or a second non-grip area 1183. The first non-grip area 1181 includes a first end face 111 and at least a portion of a side face 115 extending from the first end face 111 to the second end face 113. The length of the portion of the side face 1181 is 1 / 5 to 1 / 2 of the length of the entire side face 115. The second non-grip area 1183 includes a second end face 113 and at least a portion of a side face 115 extending from the second end face 113 to the first end face 111. The length of the portion of the side face 1183 is 1 / 5 to 1 / 3 of the length of the entire side face 115. Light from outside the brush handle 10, which is disposed on the handle housing 11, can be transmitted to the image acquisition module 13 through the light-transmitting element 15.

[0058] The handle 10 is a structure in the electric toothbrush 100 used by the user to hold and operate the various functions of the electric toothbrush 100. The handle 10 can be a cylindrical structure, a triangular prism structure, a polygonal prism structure, a T-shaped structure, or a Y-shaped structure, etc., and is not limited thereto. For example, the handle 10 can be a cylindrical structure to provide a more comfortable grip for the user. The handle 10 may include an anti-slip structure, which is provided on the outer surface of the handle 10 to reduce the possibility of the electric toothbrush 100 slipping from the user's hand during use.

[0059] The handle housing 11 is a structure for housing the motor mechanism 17 and other components of the electric toothbrush 100. The handle housing 11 is generally a shell structure with a length greater than its width and diameter, and the length direction of the handle housing 11 (i.e., the X-direction of the brush handle 10 axis) is the same as the axial direction of the output shaft 173 of the motor 171. The motor mechanism 17 and circuit boards, among other components, are all housed within the handle housing 11. Specifically, the handle housing 11 has a mounting cavity in which the motor mechanism 17 and circuit boards are housed, and the output shaft 173 of the motor 171 can pass through the handle housing 11 and connect to the electric toothbrush head 30. In some embodiments of this application, the output shaft 173 of the motor mechanism 17 extends from the first end face 111 and is used to mount the electric toothbrush head 30. This indicates that the electric toothbrush head 30 is located on the side where the first end face 111 of the handle housing 11 is located.

[0060] Understandably, please combine Figure 8 The outer contour shape of the handle shell 11 is basically the same as that of the brush handle 10. For example, if the brush handle 10 is a cylindrical structure, the outer contour shape of the handle shell 11 can be cylindrical; if the brush handle 10 is a T-shaped structure, the outer contour shape of the handle shell 11 can be T-shaped; and if the brush handle 10 is a Y-shaped structure, the outer contour shape of the handle shell 11 can be Y-shaped. The first end face 111 of the handle shell 11 can be the side of the handle shell 11 closest to the electric toothbrush head 30; the second end face 113 of the handle shell 11 can be the side of the handle shell 11 furthest from the electric toothbrush head 30.

[0061] Based on this, the outer contour shape of the handle shell 11 is cylindrical (see [reference]). Figure 8 In the case shown in Figure (a), each end face 111 and end face 113 includes one. Specifically, the first end face 111 and the second end face 113 are the upper and lower end faces of a cylinder, respectively; when the outer contour shape of the handle housing 11 is Y-shaped (see Figure (a)...), the first end face 111 and the second end face 113 are the upper and lower end faces of a cylinder, respectively. Figure 8 In the case shown in Figure (b), the first end face 111 may include two, and the second end face may include one. Specifically, the handle housing 11 includes a main body and a first sub-arm 102 and a second sub-arm 103 extending from the same end of the main body 101. The extending directions of the first sub-arm 102 and the second sub-arm 103 intersect. In this case, the first end face 111 may be the side of the first sub-arm 102 away from the main body 101, and the side of the second sub-arm 103 away from the main body 101. The second end face 113 may be the side of the main body 101 away from the first sub-arm 102. When the outer contour shape of the handle housing 11 is T-shaped (see Figure [link to figure]), Figure 8In the case shown in Figure (c), each end face 111 and end face 113 is included. Specifically, the handle housing 11 includes a first sub-part 104 and a second sub-part 105. The first sub-part 104 is connected to one end of the second sub-part 105 and is perpendicular to the second sub-part 105. In this case, the first end face 111 can be the side of the first sub-part 104 opposite to the second sub-part 105, and the second end face 113 can be the side of the second sub-part 105 opposite to the first sub-part 104.

[0062] The handle shell 11 can be made of metallic and / or non-metallic materials. Metallic materials include, but are not limited to, aluminum, iron, steel, or aluminum alloys, while non-metallic materials include, but are not limited to, plastics. In one example, the handle shell 11 can be made of metallic materials, which increases its structural strength and prevents damage during operation of the electric toothbrush 100, thereby improving the stability and reliability of the electric toothbrush 100. In another example, the handle shell 11 can be made of non-metallic materials, which makes it lighter and facilitates the portability of the electric toothbrush 100.

[0063] Please combine Figure 3The grip area 117 is the part of the handle shell 11 for the user to hold, ensuring a comfortable and secure grip on the electric toothbrush 100 during use. The non-grip area 118 is the part of the handle shell 11 excluding the grip area 117 and is connected to it. In one example, the grip area 117 and the non-grip area 118 are an integral structure, ensuring strong bonding and preventing separation during operation, thus guaranteeing stability and reliability. In another example, the grip area 117 and the non-grip area 118 are separate structures. The grip area 117 and the non-grip area 118 can be connected together using either a detachable or non-detachable connection method. Detachable connection methods include, but are not limited to, snap-fit ​​connections or bolt connections; non-detachable connection methods include, but are not limited to, adhesive or welding. It should be noted that when the grip area 117 and the non-grip area 118 are separate structures, the materials of the grip area 117 and the non-grip area 118 can be the same or different. For example, the grip area 117 can be made of metal, while the non-grip area 118 can be made of non-metallic material. This not only ensures the structural strength of the grip area 117 and reduces the possibility of deformation when the user holds it, but also makes the non-grip area 118 lighter, thereby reducing the overall weight of the handle shell 11 and contributing to the portability of the electric toothbrush 100.

[0064] It is understandable that, along the X-axis of the handle 10, the electric toothbrush 100 sequentially includes an electric toothbrush head 30 and a handle 10. Since the handle 10 includes structures such as the mechanism 17, circuit board, and power supply, the weight of the handle 10 is greater than the weight of the electric toothbrush head 30. The center of gravity of the electric toothbrush 100 is roughly located between the middle and lower part of the handle 10. Therefore, the grip area 117 is usually located in the lower middle part of the handle 10, and the non-grip area 118 is usually located in the upper part and / or lower part of the handle 10. That is, the grip area 117 covers the center of gravity of the electric toothbrush 100, which on the one hand conforms to the grip habits of most users; on the other hand, it allows users to more easily maintain the balance of the electric toothbrush 100 and reduce hand fatigue; and on the other hand, it makes the movement of the electric toothbrush 100 in the mouth more stable, allowing users to more accurately control the position and force of the electric toothbrush 100 and improve the cleaning effect of the electric toothbrush 100. It should be noted that, in some embodiments, the upper part of the brush handle 10 may be the portion of the brush handle 10 close to the electric toothbrush head 30; the lower part of the brush handle 10 may be the portion of the brush handle 10 away from the electric toothbrush head 30; and the middle part of the brush handle 10 may be the portion of the brush handle 10 located between the upper part and the lower part of the brush handle 10.

[0065] In some embodiments, the motor 171 may be positioned opposite the non-grip area 118 in the X direction perpendicular to the axis of the brush handle 10. Thus, during the operation of the electric toothbrush 100, the vibration generated by the motor 171 will not be directly transmitted to the grip area 117. That is, the vibration generated by the motor 171 must pass through the non-grip area 118 before it can be transmitted to the grip area 117, thereby reducing the user's hand vibration.

[0066] Furthermore, in some embodiments, the handle shell 11 can be designed in different ways to guide the user to identify the grip area 117, thereby facilitating the user's operation of the electric toothbrush 100. In one example, the handle shell 11 may be designed with at least two areas of different cross-sectional dimensions. For example, the cross-sectional dimension of the grip area 117 is smaller than that of the non-grip area 118. In another example, the handle shell 11 may be designed with at least two areas of different colors. In yet another example, the handle shell 11 may be designed with a distinct texture or pattern to distinguish the grip area 117 from the non-grip area 118. For example, designing wavy, rounded protrusions, etc., on the grip area 117 not only helps with anti-slip but also guides the user to identify the grip area 117 through both visual and tactile senses. In yet another example, the handle shell 11 may be designed with markings or instructions to distinguish the grip area 117 from the non-grip area 118. For example, adding text such as "grip area 117" or "grip here" to the grip area 117.

[0067] It should be noted that, in some embodiments, when the non-grip area 118 includes a first non-grip area 1181, the length of a portion of the side of the first non-grip area 1181 is 1 / 5 to 1 / 2 of the length of the entire side 115. That is, the ratio of the length of a portion of the side of the first non-grip area 1181 to the length of the entire side 115 is any one of 1 / 5, 3 / 10, 2 / 5, and 1 / 2, or any value between any two of these values. When the non-grip area 118 includes a second non-grip area 1183, the length of a portion of the side of the second non-grip area 1183 is 1 / 5 to 1 / 3 of the length of the entire side 115. That is, the ratio of the length of a portion of the side of the second non-grip area 1183 to the length of the entire side 115 is any one of 1 / 5, 6 / 25, 7 / 25, and 1 / 3, or any value between any two of these values.

[0068] Specifically, in one example, the non-grip area 118 includes a first non-grip area 1181, which includes a first end face 111 of the handle housing 11 and at least a portion of a side surface 115 extending from the first end face 111 to a second end face 113. In other words, the first non-grip area 1181 includes at least a portion of the first end face 111 and the side surface 115 of the handle housing 11 connected to the first end face 111. In this case, the grip area 117 includes the portion of the handle housing 11 excluding the first non-grip area 1181, that is, the grip area 117 may at least include the second end face 113 and the portion of the side surface 115 of the handle housing 11 excluding the first non-grip area 1181. The length of the portion of the side surface 115 of the grip area 117 is 1 / 2 to 4 / 5 of the total length of the side surface 115.

[0069] In another example, the non-grip area 118 includes a second non-grip area 1183, which includes a second end face 113 of the handle housing 11 and at least a portion of a side surface 115 extending from the second end face 113 toward the first end face 111. In other words, the second non-grip area 1183 includes at least a portion of the second end face 113 and the side surface 115 of the handle housing 11 connected to the second end face 113. In this case, the grip area 117 includes the portion of the handle housing 11 excluding the second non-grip area 1183. That is, the grip area 117 may at least include the first end face 111 and the portion of the side surface 115 of the handle housing 11 excluding the second non-grip area 1183. The length of the portion of the side surface 115 of the grip area 117 is 2 / 3 to 4 / 5 of the total length of the side surface 115.

[0070] In another example, the non-grip area 118 includes a first non-grip area 1181 and a second non-grip area 1183. The first non-grip area 1181 includes a first end face 111 of the handle housing 11 and at least a portion of the side face 115 extending from the first end face 111 to the second end face 113. The second non-grip area 1183 includes a second end face 113 of the handle housing 11 and at least a portion of the side face 115 extending from the second end face 113 to the first end face 111. In this case, the grip area 117 may include the portion of the side face 115 of the handle housing 11 other than the first non-grip area 1181 and the second non-grip area 1183.

[0071] The image acquisition module 13 is a device in the electric toothbrush 100 that can be used to acquire images. The image acquisition module 13 is connected to the core 17 and / or the handle housing 11. For example, the image acquisition module 13 is connected to the core 17 and / or the handle housing 11 by means of snap-fit, adhesive bonding, or welding. It should be noted that in some embodiments, the image acquisition module 13 may be a camera, etc. Cameras include, but are not limited to, periscope cameras or non-periscope cameras. The image acquisition module 13 can acquire (capture) images to collect user action information or other information. For example, the image acquisition module 13 can collect the user's brushing actions, human feature information (including face, mouth, nose, etc.), brush head information, etc., and transmit the collected information to the circuit board. The circuit board can analyze the received information to determine the user's brushing position or brushing posture, thereby enabling monitoring and instruction of the user's brushing behavior. For example, the system can determine whether the brushing time for each area is sufficient based on the brushing location; and it can determine whether the user's brushing posture is correct based on the brushing technique, thereby improving the cleaning effect of the electric toothbrush 100. Furthermore, the electric toothbrush 100 can also determine the usage status of the electric toothbrush head 30 based on the brush head information collected by the image acquisition module 13, and remind the user to replace the electric toothbrush head 30 when the usage time has been too long.

[0072] Furthermore, in some embodiments, the electric toothbrush 100 may also include a display screen electrically connected to the circuit board. The display screen can be used to display images acquired by the image acquisition module 13, and / or to display instruction information issued by the circuit board, thus helping the user to monitor brushing progress and promoting oral health management.

[0073] In some embodiments of this application, the image acquisition module 13 includes multiple modules, and at least one image acquisition module 13 is provided in the non-holding area 118. In this way, when the user holds the electric toothbrush 100, the user's hand will not block all the image acquisition modules 13, thereby ensuring that at least one image acquisition module 13 can collect information and ensuring the stability and reliability of the electric toothbrush 100.

[0074] The light-transmitting element 15 is a structure in the electric toothbrush 100 used to allow external light to enter the interior of the handle 10. The light-transmitting element 15 can be made of materials such as glass, plastic, or crystal. The light-transmitting element 15 acts as a barrier between the external environment and the interior of the handle housing 11, preventing dust, fluids, or other contaminants from entering the mounting cavity and protecting the image acquisition module 13 from contamination. In some embodiments, the quantity relationship between the light-transmitting element 15 and the image acquisition module 13 can be one-to-one or one-to-many; that is, one light-transmitting element 15 corresponds to one image acquisition module 13; or, one light-transmitting element 15 corresponds to multiple image acquisition modules 13. In embodiments with multiple light-transmitting elements 15, the size, shape, or light transmittance of the multiple light-transmitting elements 15 can be different or the same. Furthermore, the light-transmitting element 15 can be coated with coatings of different optical properties, such as an anti-reflective coating to improve light transmittance, an anti-reflective coating to reduce stray reflections, a filter coating to filter light of specific wavelengths, and an anti-fog coating to prevent fogging.

[0075] In the brush handle 10 of this application embodiment, there are multiple image acquisition modules 13, and at least one image acquisition module 13 is provided in the non-grip area 118. In this way, when the user holds the electric toothbrush 100, all image acquisition modules 13 will not be blocked, thereby ensuring that at least one image acquisition module 13 can collect information and ensuring the stability and reliability of the electric toothbrush 100.

[0076] It is understandable that when a user holds and uses the electric toothbrush 100, if there are two image acquisition modules 13 that are not obscured by the user, the electric toothbrush 100 can simultaneously utilize the two image acquisition modules 13 and, based on the principle of binocular stereo vision, perform three-dimensional modeling of the user's mouth area or the surrounding environment area through the images acquired by the two image acquisition modules 13, thereby obtaining three-dimensional geometric information of the user's mouth area and the surrounding environment area. Furthermore, it can be combined with sensing information obtained from other sensors to further improve the accuracy of the electric toothbrush head 30 position information or other oral cleaning information.

[0077] Furthermore, multiple image acquisition modules 13 are all located on the brush handle 10. This prevents the image acquisition modules 13 from entering the user's mouth when the user is using the electric toothbrush 100, thus preventing them from being obstructed by foam or fluid generated during brushing and ensuring their normal operation. Moreover, compared to having the image acquisition modules 13 located on the electric toothbrush head 30, having them located on the brush handle 10 also prevents the need to replace the image acquisition modules 13 simultaneously when the electric toothbrush head 30 is replaced, thereby reducing the operating cost of the electric toothbrush 100.

[0078] The brush handle 10 will be further explained below with reference to the attached drawings.

[0079] Please see Figure 1 and Figure 2 In some embodiments, the field of view of the image acquisition module 13 covers at least a portion of the electric toothbrush head 30 of the electric toothbrush 100. That is, the image acquisition module 13 can capture images of at least a portion of the electric toothbrush head 30, thereby capturing images of the electric toothbrush head 30, as well as images of human features (e.g., facial images or oral cavity images) when the user uses the electric toothbrush head 30. This ensures that the image acquisition module 13 can acquire user motion information or other information. It should be noted that in some embodiments, the field of view of at least a portion of the image acquisition module 13 is adjustable. This ensures that the object to be captured by the image acquisition module 13 is always within a favorable field of view, for example, in the middle region of the field of view, thus guaranteeing the image acquisition effect of the image acquisition module 13.

[0080] In some embodiments, when the image acquisition module 13 is a non-periscope camera, the optical axis of the image acquisition module 13 is parallel or collinear with the axial direction of the light-transmitting element 15; when the image acquisition module 13 is a periscope camera, the optical axis of the image acquisition module 13 is perpendicular to the axial direction of the light-transmitting element 15 or is set at other angles.

[0081] The following describes three specific implementation methods for setting the multiple image acquisition modules 13 of this application.

[0082] Implementation Method 1

[0083] Please see Figure 4 and Figure 5 and combined Figure 2 In Embodiment 1, multiple image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed on the first end face 111.

[0084] Specifically, as described above, the electric toothbrush head 30 is located on the side of the first end face 111 of the handle housing 11. Therefore, the multiple image acquisition modules 13 in this embodiment, surrounding the axis X of the brush handle 10 and positioned on the first end face 111, allow the image acquisition modules 13 to easily capture images of the electric toothbrush head 30, thereby acquiring user action information or other information and reducing the field of view requirements of the image acquisition modules 13.

[0085] In addition, since the first end face 111 is part of the first non-grip area 1181, the multiple image acquisition modules 13 disposed on the first end face 111 can also prevent the image acquisition module 13 from being blocked when the user holds the electric toothbrush 100, thereby ensuring the normal operation of the image acquisition module 13.

[0086] In some embodiments, when multiple image acquisition modules 13 are arranged around the axis X of the brush handle 10 and on the first end face 111, the distance between two adjacent image acquisition modules 13 is 0.3mm-30mm. Specifically, in some embodiments, the distance between two adjacent image acquisition modules 13 can be any one of 0.3mm, 1mm, 3mm, 5mm, 7mm, 10mm, 13mm, 15mm, 17mm, 20mm, 23mm, 25mm, 27mm, and 30mm, or any value between any two of these values.

[0087] If the distance between two adjacent image acquisition modules 13 is less than 0.3mm, it will result in an excessive number of image acquisition modules 13, leading to excessively high costs for the electric toothbrush 100. Furthermore, it will cause significant overlap and redundancy in the images acquired by multiple image acquisition modules 13, increasing the burden on circuit board data processing and storage. If the distance between two adjacent image acquisition modules 13 is greater than 30mm, it may result in blind spots between the images acquired by the two adjacent image acquisition modules 13, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. In some embodiments of this application, the distance between two adjacent image acquisition modules 13 is 0.3mm-30mm. This prevents an excessive number of image acquisition modules 13, reducing the cost of the electric toothbrush 100; it also prevents significant overlap and redundancy in the images acquired by multiple image acquisition modules 13, thereby reducing the burden on circuit board data processing and storage; and it also prevents blind spots between the images acquired by the two adjacent image acquisition modules 13. This ensures that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13, thereby improving the accuracy of the circuit board in judging the user's brushing position or brushing posture. It should be noted that, in some embodiments, the distance between two adjacent image acquisition modules 13 is not greater than the maximum size of the first end face 111. For example, when the first end face 111 is circular, the distance between two adjacent image acquisition modules 13 is not greater than the diameter of the first end face 111.

[0088] In some embodiments, when multiple image acquisition modules 13 are arranged around the axis X of the brush handle 10 and on the first end face 111, the included angle A between two adjacent image acquisition modules 13 and the axis of the handle housing 11 ranges from 0° to 180°. Specifically, in some embodiments, the included angle A between two adjacent image acquisition modules 13 can be any one of 180°, 170°, 160°, 150°, 140°, 130°, 120°, 110°, 100°, 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10°, and 5°, or any value between any two of these values.

[0089] If the angle A between two adjacent image acquisition modules 13 and the axis of the handle housing 11 is greater than 180°, blind spots may exist between the images acquired by the two adjacent image acquisition modules 13, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. However, in some embodiments of this application, the angle A between two adjacent image acquisition modules 13 and the axis of the handle housing 11 is in the range of 0°-180°, thereby preventing blind spots between the images acquired by the two adjacent image acquisition modules 13 and ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. For example, multiple image acquisition modules 13 can be evenly arranged around the axis X of the brush handle 10 on the first end face 111. For instance, when there are two image acquisition modules 13, the angle A between two adjacent image acquisition modules 13 and the axis of the handle housing 11 is 180°; when there are three image acquisition modules 13, the angle A between two adjacent image acquisition modules 13 and the axis of the handle housing 11 is 120°.

[0090] Please continue reading. Figure 4 and Figure 5 and combined Figure 2 In some embodiments, the non-grip area 118 includes a tapered portion 119, which includes a first end 1191 and a second end 1193 opposite to each other. The output shaft 173 of the mechanism 17 extends from the first end 1191 of the tapered portion 119. In the direction from the first end 1191 to the second end 1193 of the tapered portion 119, the cross-sectional area of ​​the tapered portion 119 gradually increases. Multiple image acquisition modules 13 are disposed in the tapered portion 119.

[0091] Specifically, in some embodiments, the tapered portion 119 may further include an outer peripheral surface 1195 located between the first end 1191 and the second end 1193. The first end surface 111 may include the first end 1191 of the tapered portion 119 and the outer peripheral surface 1195 of the tapered portion 119. Since the cross-sectional area of ​​the tapered portion 119 gradually increases from the first end 1191 to the second end 1193, the outer peripheral surface 1195 of the tapered portion 119 has an inclined structure. Therefore, when fluid generated by the user using the electric toothbrush 100 flows along the electric toothbrush head 30 to the outer peripheral surface 1195 of the tapered portion 119, the fluid will flow quickly across the tapered portion 119, thereby preventing fluid from accumulating on the tapered portion 119 and obstructing the image acquisition module 13, thus ensuring the normal operation of the image acquisition module 13.

[0092] Implementation Method 2

[0093] Please see Figure 6and combined Figure 1 and Figure 2 In the second embodiment, multiple image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed between the first end face 111 and the second end face 113.

[0094] Specifically, multiple image acquisition modules 13 may surround the axis X of the brush handle 10 and be disposed on a portion of the side of the first non-grip area 1181; or, multiple image acquisition modules 13 may surround the axis X of the brush handle 10 and be disposed on a portion of the side of the second non-grip area 1183, and the field of view of the image acquisition modules 13 must cover at least a portion of the electric toothbrush head 30, that is, the image acquisition modules 13 must capture at least a portion of the electric toothbrush head 30, thereby ensuring that the image acquisition modules 13 can capture images of the electric toothbrush head 30 to realize the collection of user action information or other information.

[0095] In some embodiments, when multiple image acquisition modules 13 are arranged around the axis X of the brush handle 10 and between the first end face 111 and the second end face 113, the included angle between two adjacent image acquisition modules 13 ranges from 0° to 180°. Specifically, in some embodiments, the included angle between two adjacent image acquisition modules 13 can be any one of 180°, 170°, 160°, 150°, 140°, 130°, 120°, 110°, 100°, 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10°, and 5°, or any value between any two of these values.

[0096] If multiple image acquisition modules 13 are arranged around the axis X of the brush handle 10 and between the first end face 111 and the second end face 113, and the included angle between two adjacent image acquisition modules 13 is greater than 180°, blind spots may exist between the images acquired by the two adjacent image acquisition modules 13, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. However, in some embodiments of this application, when multiple image acquisition modules 13 are arranged around the axis X of the brush handle 10 and between the first end face 111 and the second end face 113, the included angle between two adjacent image acquisition modules 13 is 0°-180°. This prevents blind spots between the images acquired by two adjacent image acquisition modules 13, thereby ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13.

[0097] Implementation Method 3

[0098] Please see Figure 1 and Figure 2In the third embodiment, multiple image acquisition modules 13 are arranged between the first end face 111 and the second end face 113 along the X-axis of the brush handle 10.

[0099] Specifically, in some embodiments, a plurality of image acquisition modules 13 may be disposed along the X-axis of the brush handle 10 on a portion of the side surface of the first non-grip area 1181 and / or a portion of the side surface of the second non-grip area 1183. In other embodiments, a plurality of image acquisition modules 13 may be disposed along the X-axis of the brush handle 10 on a portion of the side surface of the first non-grip area 1181 and the grip area 117; and / or, along the X-axis of the brush handle 10 on a portion of the side surface of the second non-grip area 1183 and the grip area 117.

[0100] In some embodiments, when multiple image acquisition modules 13 are arranged along the X-axis of the brush handle 10 between the first end face 111 and the second end face 113, the distance between two adjacent image acquisition modules 13 is less than 200 mm. Specifically, in some embodiments, the distance between two adjacent image acquisition modules 13 is any one of 200 mm, 190 mm, 180 mm, 170 mm, 160 mm, 150 mm, 140 mm, 130 mm, 120 mm, 110 mm, 100 mm, 90 mm, 80 mm, 70 mm, 60 mm, 50 mm, 40 mm, 30 mm, 20 mm, and 10 mm, or any value between any two of these values.

[0101] If multiple image acquisition modules 13 are arranged along the X-axis of the brush handle 10 between the first end face 111 and the second end face 113, and the distance between two adjacent image acquisition modules 13 is greater than 200mm, blind spots may exist between the images acquired by the two adjacent image acquisition modules 13, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. However, in some embodiments of this application, when multiple image acquisition modules 13 are arranged along the X-axis of the brush handle 10 between the first end face 111 and the second end face 113, the distance between two adjacent image acquisition modules 13 is less than 200mm. This prevents blind spots between the images acquired by the two adjacent image acquisition modules 13, thereby ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13.

[0102] Please continue reading. Figure 1 and Figure 2In some embodiments, the brush handle 10 further includes a control key 19, which is disposed on the handle housing 11 and electrically connected to the mechanism 17. The control key 19 and the light-transmitting element 15 are located on opposite sides of the handle housing 11 in a direction perpendicular to the axis X of the brush handle 10. Therefore, the opposite positions of the control key 19 and the light-transmitting element 15 reduce the possibility of the user obstructing the image acquisition module 13 when operating the control key 19, thereby ensuring that the image acquisition module 13 can acquire images.

[0103] The control key 19 is a component for user interaction with the electric toothbrush 100, and it is electrically connected to the circuit board in the mechanism 17. When the user operates the control key 19, the circuit board transmits control signals to the motor 171, which responds to the control signals and performs corresponding functions, such as start, stop, and mode switching. Specifically, in the direction perpendicular to the axis X of the brush handle 10, the handle shell 11 may include a first surface and a second surface, with the control key 19 disposed on the first surface. Since the handle shell 11 can be approximately cylindrical, the front and back surfaces of the handle shell 11 are relative concepts; both can be curved surfaces, and they can be connected. It should be noted that in the direction perpendicular to the axis X of the brush handle 10, the control key 19 and the light-transmitting element 15 may be directly opposite each other on the handle shell 11, or they may not be directly opposite each other.

[0104] In some embodiments, the control key 19 may be a physical button, which can be triggered by the user by pressing or other means to activate different functions of the electric toothbrush 100. In other embodiments, the control key 19 may be a virtual button. For example, the control key 19 may be an area on the display screen, which the user can control by touching the outer surface of the display screen.

[0105] It should be noted that the placement of the plurality of image acquisition modules 13 in this application can also include any combination of the above three embodiments. That is, the plurality of image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed on the first end face 111, and the plurality of image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed between the first end face 111 and the second end face 113; or, the plurality of image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed on the first end face 111, and the plurality of image acquisition modules 13 are disposed between the first end face 111 and the second end face 113 along the axis X direction of the brush handle 10; or, the plurality of image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed between the first end face 111 and the second end face 113. Multiple image acquisition modules 13 are disposed between the first end face 111 and the second end face 113 along the X-axis of the brush handle 10; or, multiple image acquisition modules 13 surround the X-axis of the brush handle 10 and are disposed on the first end face 111; multiple image acquisition modules 13 surround the X-axis of the brush handle 10 and are disposed between the first end face 111 and the second end face 113; multiple image acquisition modules 13 are disposed between the first end face 111 and the second end face 113 along the X-axis of the brush handle 10.

[0106] For example, when multiple image acquisition modules 13 surround the axis X of the brush handle 10 and are disposed between the first end face 111 and the second end face 113, and the multiple image acquisition modules 13 are disposed between the first end face 111 and the second end face 113 along the axis X of the brush handle 10, the side surface 115 of the handle housing 11 may be provided with multiple sets of image acquisition modules arranged along the axis X of the brush handle 10 along the circumference of the brush handle 10, and each set of image acquisition modules includes at least two image acquisition modules 13.

[0107] It is understandable that the multiple image acquisition modules 13 can be set in other ways, and are not limited to the methods described above.

[0108] Please see Figures 1 to 3 In some embodiments, the grip area 117 is connected to the first non-grip area 1181 and / or the second non-grip area 1183, and the grip area 117 is provided with at least one image acquisition module 13. Thus, even when the user does not hold the electric toothbrush 100 in the conventional grip manner, that is, when the user does not hold the electric toothbrush 100 through the grip area 117, at least one image acquisition module 13 can still acquire images.

[0109] Furthermore, in some embodiments, the gripping area 117 is provided with a plurality of image acquisition modules 13, which surround the axis X of the brush handle 10. In other words, the plurality of image acquisition modules 13 can be arranged around the axis X of the brush handle 10 in the gripping area 117. In this case, the included angle range between two adjacent image acquisition modules 13 is the same as that in the above embodiment where the plurality of image acquisition modules 13 surround the axis X of the brush handle 10 and are arranged between the first end face 111 and the second end face 113, and will not be described again here.

[0110] In other embodiments, the grip area 117 is provided with a plurality of image acquisition modules 13, which are arranged along the X-axis of the brush handle 10. In other words, the plurality of image acquisition modules 13 are arranged in the grip area 117 along the X-axis of the brush handle 10. In this case, the distance between two adjacent image acquisition modules 13 is the same as the distance between two adjacent image acquisition modules 13 in the above embodiment where the plurality of image acquisition modules 13 are arranged between the first end face 111 and the second end face 113 along the X-axis of the brush handle 10, and will not be described again here.

[0111] In some embodiments, the light-transmitting element 15 protrudes relative to the outer surface of the handle housing 11, and at least a portion of the plurality of image acquisition modules 13 protrudes from the outer surface of the handle housing 11. This guides the user to hold the toothbrush 100 at a specific position on the handle housing 11, reducing the possibility of the user obstructing the image acquisition module 13 when holding the electric toothbrush 100, and ensuring the normal operation of the image acquisition module 13. In addition, the protrusion of the light-transmitting element 15 relative to the outer surface of the handle housing 11 also reduces the possibility of fluid generated when the user uses the electric toothbrush 100 accumulating on the light-transmitting element 15, thereby ensuring that light from outside the handle 10 can be transmitted to the image acquisition module 13 through the light-transmitting element 15.

[0112] Specifically, in some embodiments, the light-transmitting element 15 is a raised structure, and the light-transmitting element 15 protrudes from the outer surface of the handle housing 11, thereby allowing at least a portion of the plurality of image acquisition modules 13 to protrude from the outer surface of the handle housing 11. In other embodiments, a raised structure is provided on the outer surface of the handle housing 11, the raised structure protrudes relative to the outer surface of the handle housing 11, and the light-transmitting element 15 is disposed on the raised structure.

[0113] Please combine Figure 7In some embodiments, the included angle B between the optical axes of two adjacent image acquisition modules 13 ranges from 0° to 180°. It should be noted that in some embodiments, the included angle B between the optical axes of two adjacent image acquisition modules 13 can be any one of 180°, 170°, 160°, 150°, 140°, 130°, 120°, 110°, 100°, 90°, 80°, 70°, 60°, 50°, 40°, 30°, 20°, 10°, and 5°, or any value between any two of these.

[0114] If the angle B between the optical axes of two adjacent image acquisition modules 13 is greater than 180°, blind spots may exist between the images acquired by the two adjacent image acquisition modules 13, making it impossible to locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. However, in some embodiments of this application, the angle B between the optical axes of two adjacent image acquisition modules 13 is in the range of 0°-180°, thereby preventing blind spots between the images acquired by the two adjacent image acquisition modules 13, and ensuring that the circuit board can locate the user's mouth using the images acquired by the two adjacent image acquisition modules 13. In addition, compared to the optical axes of two adjacent image acquisition modules 13 coinciding, the angle B between the optical axes of two adjacent image acquisition modules 13 is in the range of 0°-180°, which can also increase the field of view of the image acquisition module 13, thereby enabling the image acquisition module to acquire more effective information, and thus improving the accuracy of the circuit board in judging the user's brushing position or brushing posture.

[0115] Furthermore, in some embodiments, the included angle B between the optical axes of two adjacent image acquisition modules 13 ranges from 0° to 90°. It should be noted that in some embodiments, the included angle B between the optical axes of two adjacent image acquisition modules 13 can be any one of 90°, 85°, 80°, 75°, 70°, 65°, 60°, 55°, 50°, 45°, 40°, 35°, 30°, 25°, 20°, 15°, 10°, and 5°, or any value between any two of these values.

[0116] In some embodiments, the length of the first non-grip area 1181 on the first surface is less than the length of the first non-grip area 1181 on the second surface. That is, the length of the first non-grip area 1181 is shorter on the side where the control key 19 is located (i.e., the first surface), and the length of the first non-grip area 1181 is longer on the side on the back of the control key 19 (i.e., the second surface). This reduces the possibility of the user obstructing the image acquisition module 13 on the first non-grip area 1181 when operating the control key 19, thereby ensuring that at least one image acquisition module 13 can perform information acquisition.

[0117] In some embodiments, the length of the second non-grip area 1183 on the first surface is less than the length of the second non-grip area 1183 on the second surface. That is, the length of the second non-grip area 1183 is shorter on the side where the control key 19 is located (i.e., the first surface), and the length of the second non-grip area 1183 is longer on the side on the back of the control key 19 (i.e., the second surface). This reduces the possibility of the image acquisition module 13 on the second non-grip area 1183 being obstructed when the user operates the control key 19, thereby ensuring that at least one image acquisition module 13 can perform information acquisition.

[0118] In some embodiments, a hydrophobic film is provided on the outer surface of the light-transmitting element 15. The hydrophobic film reduces the adhesion of fluids on the outer surface of the light-transmitting element 15, ensuring that light from outside the brush handle 10 can be transmitted through the light-transmitting element 15 to the image acquisition module 13.

[0119] Specifically, during the use of the electric toothbrush 100, the user generates fluid (such as mouthwash or a liquid mixed with foam and mouthwash), which may flow onto the light-transmitting element 15. If the fluid accumulates on the light-transmitting element 15, light from outside the brush handle 10 cannot be transmitted to the image acquisition module 13, meaning the image acquisition module 13 cannot acquire an image. Therefore, a hydrophobic film can be provided on the outer surface of the light-transmitting element 15. For example, fluorinated polyethylene, fluorocarbon wax, or other synthetic fluoropolymers can be coated on the outer surface of the light-transmitting element 15 to form a hydrophobic film, thereby reducing fluid adhesion to the outer surface of the light-transmitting element 15, i.e., preventing fluid accumulation on the light-transmitting element 15, and ensuring that light from outside the brush handle 10 can be transmitted through the light-transmitting element 15 to the image acquisition module 13.

[0120] In addition, fluid is less likely to adhere to the outer surface of the light-transmitting element 15, which reduces the residence time of the fluid on the outer surface of the light-transmitting element 15. Thus, when the light-transmitting element 15 and the handle housing 11 are set separately, the probability of water leakage at the connection between the light-transmitting element 15 and the handle housing 11 can also be reduced.

[0121] In some embodiments, the handle housing 11 is provided with a heating element for heating the light-transmitting element 15. It should be noted that in some embodiments, the heating element may include, but is not limited to, a resistance wire or a heating film.

[0122] Specifically, as described above, fluid may accumulate on the light-transmitting element 15, preventing light from the outside of the brush handle 10 from being transmitted to the image acquisition module 13, i.e., the image acquisition module 13 cannot acquire an image. Therefore, when fluid is present on the outer surface of the light-transmitting element 15, the heating element can accelerate the evaporation of the fluid on the outer surface of the light-transmitting element 15, thereby reducing the adhesion of fluid on the outer surface of the light-transmitting element 15, i.e., preventing fluid from accumulating on the light-transmitting element 15, and ensuring that light from the outside of the brush handle 10 can be transmitted through the light-transmitting element 15 to the image acquisition module 13.

[0123] In addition, when the heating element heats the light-transmitting element 15, the heat on the light-transmitting element 15 can also be transferred to the image acquisition module 13, thereby preventing the image acquisition module 13 from fogging up and ensuring the normal operation of the image acquisition module 13.

[0124] In some embodiments, the handle housing 11 is provided with a vibrating element for vibrating the light-transmitting element 15. It should be noted that in some embodiments, the vibrating element may include, but is not limited to, a vibration motor.

[0125] Specifically, when there is fluid on the outer surface of the light-transmitting element 15, the vibrating element can cause the light-transmitting element 15 to vibrate, so that the fluid on the outer surface of the light-transmitting element 15 is detached, preventing the fluid from adhering to the outer surface of the light-transmitting element 15, thereby ensuring that the light outside the brush handle 10 can be transmitted to the image acquisition module 13 through the light-transmitting element 15.

[0126] In the description of this specification, the references to terms such as "some embodiments," "in one example," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0127] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A brush handle for an electric toothbrush, characterized in that, include: The handle housing includes a first end face and a second end face facing away from each other, and a side face connecting the first end face and the second end face. The handle housing also includes a gripping area and a non-griping area that are in contact with each other. Multiple image acquisition modules are provided, with at least one image acquisition module disposed in the non-grip area. The non-grip area includes a first non-grip area and / or a second non-grip area. The first non-grip area includes a first end face and at least a portion of a side face extending from the first end face to the second end face. The length of the portion of the side face of the first non-grip area is 1 / 5 to 1 / 2 of the total side face length. The second non-grip area includes a second end face and at least a portion of a side face extending from the second end face to the first end face. The length of the portion of the side face of the second non-grip area is 1 / 5 to 1 / 3 of the total side face length. and A light-transmitting element is disposed on the handle housing, through which light from outside the brush handle can be transmitted to the image acquisition module.

2. The brush handle according to claim 1, characterized in that, The brush handle also includes a motor, which is disposed inside the handle housing. The output shaft of the motor extends from the first end face and is used to mount an electric toothbrush head. Multiple image acquisition modules are arranged around the axis of the brush handle and on the first end face; and / or, Multiple image acquisition modules are arranged around the axis of the brush handle and between the first end face and the second end face; and / or, Multiple image acquisition modules are disposed between the first end face and the second end face along the axial direction of the brush handle.

3. The brush handle according to claim 2, characterized in that, With multiple image acquisition modules surrounding the axis of the brush handle and positioned on the first end face, The distance between two adjacent image acquisition modules is 0.3mm-30mm; and / or, The included angle between two adjacent image acquisition modules and the axis of the handle housing ranges from 0° to 180°.

4. The brush handle according to claim 3, characterized in that, The non-grip area includes a tapered section, which includes a first end and a second end opposite to each other. The output shaft of the mechanism extends from the first end of the tapered section. In the direction from the first end to the second end of the tapered section, the cross-sectional area of ​​the tapered section gradually increases. Multiple image acquisition modules are disposed in the tapered section.

5. The brush handle according to claim 2, characterized in that, With multiple image acquisition modules surrounding the axis of the brush handle and positioned between the first end face and the second end face, the included angle between two adjacent image acquisition modules ranges from 0° to 180°.

6. The brush handle according to claim 2, characterized in that, When multiple image acquisition modules are arranged between the first end face and the second end face along the axial direction of the brush handle, the distance between two adjacent image acquisition modules is less than 200mm.

7. The brush handle according to claim 6, characterized in that, The brush handle also includes: A control key is disposed on the handle housing and electrically connected to the mechanism. The control key and the light-transmitting element are disposed on opposite sides of the handle housing in a direction perpendicular to the axis of the brush handle.

8. The brush handle according to claim 1, characterized in that, The gripping area is connected to the first non-grip area and / or the second non-grip area, and the gripping area is provided with at least one of the image acquisition modules.

9. The brush handle according to claim 8, characterized in that, The grip area is equipped with multiple image acquisition modules. Multiple image acquisition modules are arranged around the axis of the brush handle; or, Multiple image acquisition modules are arranged along the axial direction of the brush handle.

10. The brush handle according to claim 1, characterized in that, The light-transmitting element protrudes relative to the outer surface of the handle housing, at least a portion of the plurality of image acquisition modules protrudes from the outer surface of the handle housing, and the field of view of the image acquisition modules covers at least a portion of the electric toothbrush head of the electric toothbrush.

11. The brush handle according to claim 10, characterized in that, The angle between the optical axes of two adjacent image acquisition modules ranges from 0° to 180°.

12. The brush handle according to claim 1, characterized in that, The brush handle also includes a control key; in a direction perpendicular to the axis of the brush handle, the handle housing includes a first side and a second side facing away from each other, and the control key is disposed on the first side; The length of the first non-grip area on the first surface is less than the length of the first non-grip area on the second surface; And / or, The length of the second non-grip area on the first surface is less than the length of the second non-grip area on the second surface.

13. The brush handle according to claim 1, characterized in that, A hydrophobic film is provided on the outer surface of the light-transmitting component.

14. An electric toothbrush, characterized in that, include: The brush handle and the electric toothbrush head according to any one of claims 1-13, wherein the electric toothbrush head is connected to the brush handle.

Images