Electric toothbrush

Abstract

The application discloses an electric toothbrush, comprising a handle, characterized in that the handle comprises: a handle cylinder comprising an annular outer peripheral part, two ends of the annular outer peripheral part being provided with a top part and a bottom part in a first direction, the outer peripheral part, the top part and the bottom part jointly defining a containing cavity; a core comprising a battery and a motor; wherein the outer peripheral part comprises a first shell part and a second shell part, the bottom part is an integral molded part with the first shell part or the second shell part; or the bottom part comprises a first bottom part and a second bottom part, the first bottom part is an integral molded part with the first shell part, and the second bottom part is an integral molded part with the second shell part. According to the electric toothbrush provided by the application, the bottom part and at least part of the outer peripheral part are integral molded parts, the waterproof area needing sealing treatment between the bottom part and the outer peripheral part is reduced, the difficulty of sealing and waterproof is reduced, and the possibility of stain accumulation and mildew of the bottom part when the bottom part is in long-term contact with a placement table surface is reduced.

Description

Technical Field

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

[0002] Electric toothbrushes in related technologies have a bottom cover at the bottom. After the motor, battery, and other components are pushed into the toothbrush housing from the bottom, the bottom cover is then installed at the bottom of the toothbrush housing, making the assembly of electric toothbrushes complicated. Furthermore, when placing electric toothbrushes, users need to avoid contact between the brush head and the countertop to ensure cleanliness and hygiene. They usually support the bottom of the electric toothbrush on the countertop. The sealing gap between the bottom and the toothbrush housing comes into contact with the countertop, which can easily accumulate dirt and even mold, affecting the user experience.

[0003] Application content

[0004] According to an embodiment of the first aspect of this application, the electric toothbrush includes a handle, the handle comprising: a handle tube, the handle tube including an annular outer peripheral portion, the annular outer peripheral portion having a top and a bottom at both ends in a first direction, the outer peripheral portion, the top and the bottom together defining a receiving cavity; a motor, including a battery and a motor, the battery and the motor being disposed within the receiving cavity; wherein, the outer peripheral portion includes a first shell portion and a second shell portion arranged along a second direction, the first shell portion defining an opening on one side facing the second shell portion, the second shell portion closing the opening; the battery and the motor being inserted into and disposed within the receiving cavity through the opening, wherein the bottom is integrally formed with the first shell portion or the second shell portion; or, the bottom includes a first bottom and a second bottom, the first bottom being integrally formed with the first shell portion, and the second bottom being integrally formed with the second shell portion.

[0005] According to the embodiments of this application, the electric toothbrush with the battery and motor installed from the open end expands the installation and operation space for the battery and motor, reducing the difficulty of installing the battery and motor. At the same time, by making at least part of the bottom and the outer periphery an integral molded part, the waterproof area that needs to be sealed between the bottom and the outer periphery is reduced, reducing the difficulty of sealing and waterproofing. In this way, when the bottom is in long-term contact with the table surface, the possibility of dirt accumulation and mold growth at the bottom is reduced, and the risk of water ingress into the electric toothbrush is reduced.

[0006] In addition, the electric toothbrush according to the above embodiments of this application may also have the following additional technical features:

[0007] According to some embodiments of this application, the bottom includes a first bottom and a second bottom. The first bottom and the first shell are integrally formed, and the second bottom and the second shell are integrally formed. The cross-sectional area of ​​the first bottom is larger than the cross-sectional area of ​​the second bottom. The first bottom and the end face of the first shell facing the opening form a first end face, and the second bottom and the end face of the second shell facing the opening form a second end face. The first end face and the second end face are sealed together, and the outer edge of the second end face is located inside the outer edge of the first end face.

[0008] Electric toothbrushes are typically cylindrical or near-cylindrical in shape. To better support the electric toothbrush, the central area of ​​the bottom is more likely to come into contact with water or dirt. By forming a larger area of ​​the first bottom on the first shell, the gap between the first bottom and the second bottom can be shortened. This allows the first bottom to define the central area of ​​the bottom, thereby reducing the area of ​​the bottom that needs to be sealed. This reduces the difficulty of sealing and waterproofing the electric toothbrush and reduces the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush.

[0009] Furthermore, by positioning the outer edge of the second end face inside the outer edge of the first end face, when the bottom is supported on the tabletop, the first bottom is supported on the tabletop, and the second bottom is slightly higher than the first bottom. At the same time, the seam between the first and second end faces is higher than the first bottom, thereby preventing the second bottom from directly contacting the tabletop and preventing the seam between the first and second end faces from directly contacting the tabletop. This improves the sealing and waterproofing of the electric toothbrush and reduces the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush.

[0010] According to some embodiments of this application, the outer edge of the second end face defines a boundary line between the first end face and the second end face, and the lower portion of the boundary line is a convex arc. Specifically, the boundary line is located inside the outer edge of the first end face so that when the bottom is supported on the table surface, the boundary line is higher than the first bottom, thereby preventing the boundary line from directly contacting the table surface, which improves the sealing and waterproofing of the electric toothbrush and reduces the possibility of dirt accumulation and mold growth at the boundary line.

[0011] Furthermore, the lower portion of the dividing line is a convex curve, which facilitates further control of the distance between the dividing line and the first bottom, making it less likely for water on the placement surface to enter the dividing line. Specifically, compared to making the lower portion of the dividing line a straight line, making it a convex arc allows for a larger second shell while further reducing the likelihood of water on the placement surface entering the inner side of the dividing line. Specifically, in the upward direction, the distance between the arc and the first bottom gradually increases, making it even less likely for water on the placement surface to enter the inner side of the dividing line, thereby further improving the electric toothbrush's sealing and waterproofing, and reducing the possibility of dirt accumulation and mold growth at the dividing line.

[0012] According to some embodiments of this application, the first bottom has a support surface for supporting the toothbrush on a tabletop, and in the first direction, the lowest point of the dividing line is higher than the support surface. This utilizes the larger support area on the first bottom to stably support the electric toothbrush vertically, while reducing the possibility of the dividing line contacting the tabletop, thus lowering the likelihood of dirt and mold accumulation on the dividing line and the second bottom. Specifically, the dividing line is located inside the second end face, the entire second bottom is higher than the support surface, and the sealing portion between the second bottom and the first and second bottoms does not directly contact the tabletop, further improving the waterproof performance, mold resistance, and corrosion resistance of the second bottom and the sealing portion.

[0013] According to some embodiments of this application, the battery and motor are mounted on the first housing portion through the opening. Since the first bottom defines a support surface for supporting the electric toothbrush, placing the motor and battery in the first housing portion concentrates the center of gravity in the first housing portion, allowing the first bottom to more stably support the electric toothbrush. This avoids the situation where placing the motor and battery in the second housing portion would cause the center of gravity to be closer to the second housing portion, resulting in the first bottom being unable to effectively support the electric toothbrush when placed vertically.

[0014] According to some embodiments of this application, the top and bottom are integrally formed with the first or second shell portion. By integrally forming the top and bottom with one of the shell portions, the number of separate top components can be reduced, simplifying the assembly process. Furthermore, by sealing the top, bottom, and one of the shell portions, the areas requiring waterproofing between the top and shell portions, and between the bottom and shell portions, can be reduced, simplifying the waterproofing process for the electric toothbrush and improving its sealing performance.

[0015] According to some embodiments of this application, in the second direction, the width of the first housing portion is greater than the width of the second housing portion. This facilitates the differentiation between the first and second housing portions during installation, prevents mistaken installation, and allows the first housing portion to form a deeper mounting groove, enabling it to better enclose and define the movement, thus reducing the difficulty of installation.

[0016] According to some embodiments of this application, the first shell portion and the top portion are integrally formed, the top portion is provided with a through hole, and the motor includes a motor shaft, which passes through the through hole and is partially exposed. The larger space at the end of the first shell portion facilitates the provision of the through hole on the top portion; simultaneously, the complete through hole can be used for positioning and mounting the motor shaft, reducing the assembly difficulty of the motor. This effectively avoids the problem of reduced sealing performance caused by incomplete holes in the motor drive, facilitates sealing of the through hole and the motor shaft, and improves the waterproof performance of the electric toothbrush.

[0017] According to some embodiments of this application, the bottom includes a first bottom and a second bottom, and the top includes a first top and a second top. The first top, the first bottom, and the first shell are integrally formed, as are the second top, the second bottom, and the second shell. By integrally forming the first top, the first bottom, and the first shell, and by integrally forming the second top, the second bottom, and the second shell, the number of separate top components can be reduced, and the installation and fitting processes for the top can be reduced. Furthermore, integrally forming the first top, the first bottom, and the first shell, and integrally forming the second top, the second bottom, and the second shell reduces the areas requiring sealing and waterproofing between the top and the shell, and between the bottom and the shell, thus simplifying the waterproofing process for the electric toothbrush and improving its sealing performance.

[0018] According to some embodiments of this application, the first top, the first bottom, and the end faces of the first shell portion facing the open opening form a first mating surface, and the second top, the second bottom, and the end faces of the second shell portion facing the open opening form a second mating surface. The first mating surface and the second mating surface are sealed together, and the outer edge of the second mating surface is located inside the outer edge of the first mating surface. Through the sealing engagement of the first and second mating surfaces, the first shell portion and the second shell portion, the first top and the second top, and the first bottom and the second bottom are sealed, preventing water from entering the handle and improving the waterproof performance of the electric toothbrush. Simultaneously, by positioning the outer edge of the second mating surface inside the outer edge of the first mating surface, when the bottom is supported on a tabletop, the first bottom is supported on the tabletop, and the second bottom is slightly higher than the first bottom. Furthermore, the seam between the first and second mating surfaces is higher than the first bottom, thus preventing the second bottom from directly contacting the tabletop and avoiding direct contact between the seam of the first and second mating surfaces. This improves the sealing and waterproof performance of the electric toothbrush and reduces the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush.

[0019] According to some embodiments of this application, both the first mating surface and the second mating surface are parallel to the first direction. This facilitates reducing the area of ​​the first and second mating surfaces, thereby reducing the areas on the first and second mating surfaces that require sealing. Simultaneously, the planar sealing and waterproofing process is simpler, reducing the difficulty of sealing and waterproofing electric toothbrushes.

[0020] According to some embodiments of this application, the electric toothbrush includes a charging port, which is disposed on the outer periphery adjacent to the bottom. The central axis of the charging port passes through the open opening, and the charging port is spaced apart from the bottom. By placing the charging port on the outer periphery, the risk of the charging port coming into contact with water or dirt can be reduced, thus reducing the possibility of water ingress, dirt accumulation, and mold growth in the electric toothbrush charging port, and improving the safety of using the electric toothbrush. In addition, the central axis of the charging port passing through the open opening allows the charging port to be demolded using the space of the open opening, reducing the molding difficulty of the charging port. At the same time, the operating space of the open opening can be used to electrically connect the charging port to the motor, which facilitates the reduction of wiring difficulty.

[0021] According to some embodiments of this application, the charging port is disposed between the battery and the bottom. This brings the charging port closer to the battery, reducing the wiring between the charging port and the battery, facilitating the electrical connection between the charging port and the battery, and also makes the charging port closer to the bottom, making it less likely for the user to touch when holding the device, thus avoiding affecting the holding experience.

[0022] According to some embodiments of this application, a first support portion is provided on the first housing portion. In the first direction, a first mounting groove and a second mounting groove are formed on opposite sides of the first support portion, respectively. The motor and the battery are respectively mounted in the first mounting groove and the second mounting groove through the open opening. This facilitates installation by mounting the motor in the first mounting groove through the open opening and the battery in the second mounting groove through the open opening. At the same time, the first support portion separates the battery and the motor, preventing the vibration of the motor from being transmitted to the battery, which would affect the energy storage of the battery. It also prevents the heat from the battery from being directly transferred to the motor, which would affect the performance of the motor. When the electric toothbrush is dropped during drop testing or during use, the first support portion provides axial support for the battery and the motor, preventing the motor and battery from shifting too much or breaking after a drop, thus improving the drop resistance of the electric toothbrush.

[0023] According to some embodiments of this application, the first housing portion is provided with a second support portion. In the first direction, the second support portion is spaced apart from the first support portion, and the second support portion and the first support portion together form a second mounting groove. The first support portion can be used to limit the position of the motor in the first direction, preventing the motor from shifting in the first direction after it is mounted on the first support portion. The second support portion can be used to limit the position of the battery, preventing the battery from shifting in the first direction after it is mounted on the second support portion.

[0024] According to some embodiments of this application, a charging port is provided on the first housing portion, and the charging port is located between the second support portion and the bottom. Specifically, the second support portion can support the position of the battery on the one hand, and separate the battery from the charging port on the other hand, avoiding direct contact between the battery and the charging port, which helps to reduce the risk of short circuit between the battery and the charging port, and also helps to reduce the possibility of leakage in the electric toothbrush.

[0025] Meanwhile, since the charging port is located on the outer periphery and is a certain distance from the bottom in the first direction, when the electric toothbrush is placed vertically along the first direction on a surface with water stains, it can prevent water from entering the charging port or the charging port from being corroded and moldy, thus improving the waterproof performance and corrosion resistance of the electric toothbrush.

[0026] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0027] 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, in which:

[0028] Figure 1 This is a schematic diagram of the structure of an electric toothbrush according to an embodiment of this application, wherein the brush head is located on the motor shaft;

[0029] Figure 2 This is a schematic diagram of the handle according to an embodiment of this application;

[0030] Figure 3 This is an exploded view of the handle cylinder according to an embodiment of this application;

[0031] Figure 4 This is an exploded view of the handle cylinder according to an embodiment of this application;

[0032] Figure 5 This is a schematic diagram of the structure of the first shell portion, bottom portion, and top portion according to an embodiment of this application;

[0033] Figure 6This is a rear view of the first shell portion and the bottom and top portions according to an embodiment of this application;

[0034] Figure 7 This is a partial structural diagram of the handle according to an embodiment of this application;

[0035] Figure 8 This is a partial structural diagram of the handle according to an embodiment of this application;

[0036] Figure 9 This is a schematic diagram of the handle according to an embodiment of this application;

[0037] Figure 10 This is a schematic diagram of the structure of the sealing plug according to an embodiment of this application.

[0038] Reference numerals: 1000, electric toothbrush; 1, handle;

[0039] 10. Handle sleeve; 101. Outer periphery; 102. Top; 103. Bottom; 1031. Support surface; 104. Through hole; 105. Charging port;

[0040] 11. First shell portion; 111. Opening; 112. Limiting portion; 113. First receiving portion; 114. Mating cavity; 115. Second receiving portion; 116. Limiting cavity; 117. Limiting groove; 119. Mounting groove; 1191. First mounting groove; 1192. Second mounting groove;

[0041] 12. Second shell section; 121. Interactive area; 1211. Visible section; 1212. Button section;

[0042] 20. Movement; 21. Motor; 211. Motor shaft; 22. Battery; 23. Circuit board;

[0043] 31. First support part; 311. First fixing hole; 32. Second support part; 33. First fastener;

[0044] 41. Buckle part; 42. Buckle mating part;

[0045] 501. Straight-line plane; 502. Curved-line plane; 51. First mating surface; 52. Second mating surface;

[0046] 61. Sealing components; 62. Electrically mating components;

[0047] 72. First sealant portion; 72. Second sealant portion; 73. Sealing plug portion; 731. Sealing protrusion; 732. Fixing end;

[0048] 80. Support bracket; 81. Divider;

[0049] 90. Brush head. Detailed Implementation

[0050] 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 this application, and should not be construed as limiting this application.

[0051] An electric toothbrush 1000 according to an embodiment of this application is described below with reference to the accompanying drawings.

[0052] like Figures 1-4 As shown, the electric toothbrush 1000 according to an embodiment of this application includes a handle 1, which includes a handle tube 10 and a motor 20.

[0053] The handle cylinder 10 includes an annular outer peripheral portion 101. In a first direction, the annular outer peripheral portion 101 has a top 102 and a bottom 103 at both ends, and the outer peripheral portion 101, the top 102, and the bottom 103 together define a receiving cavity. The outer peripheral portion 101 includes a first shell portion 11 and a second shell portion 12 arranged in a second direction. The first shell portion 11 defines an opening 111 on the side facing the second shell portion 12, and the second shell portion 12 closes the opening 111.

[0054] The mechanism 20 includes a battery 22 and a motor 21, which are disposed within the receiving cavity through an opening 111. Specifically, the first shell portion 11 and the second shell portion 12 are arranged along a second direction, which allows for a larger opening 111 in the first shell portion 11. This provides ample operating space for installing the mechanism 20 into the receiving cavity through the opening 111, facilitating adjustments to its position within the cavity. This reduces installation difficulty and improves installation efficiency, while also facilitating the automation of electric toothbrush 1000 assembly and increasing production efficiency.

[0055] It should be explained here that the first shell portion 11 and the second shell portion 12 are adapted to be assembled along the second direction. Specifically, the side of the first shell portion 11 facing the second shell portion 12 defines at least a portion of the end face of the first mating surface 51, and the side of the second shell portion 12 facing the first shell portion 11 defines at least a portion of the end face of the second mating surface 52.

[0056] The first mating surface 51 and the second mating surface 52 can be planes, or they can be curved or inclined surfaces that fit together. After the first shell 11 and the second shell 12 are assembled along the second direction, the first mating surface 51 and the second mating surface 52 are in contact and fit together, so that the first mating surface 51 and the second mating surface 52 are sealed together, thereby achieving the sealing of the second shell 12 on the opening 111.

[0057] Specifically, when the user holds the electric toothbrush 1000 and faces the display screen of the electric toothbrush 1000, the second direction is the front-to-back direction. This can hide the seam between the first shell 11 and the second shell 12, which helps to improve the aesthetics of the electric toothbrush 1000.

[0058] In some embodiments, the bottom 103 is integrally formed with the first shell portion 11 or the second shell portion 12, so that when the first shell portion 11 and the second shell portion 12 are engaged in the second direction, the handle tube 10 can be assembled without installing the bottom 103 on the outer peripheral portion 101, which facilitates the reduction of assembly steps.

[0059] Specifically, the bottom 103 is integrally formed with the first shell portion 11 or the second shell portion 12, rather than being a separate component. This reduces the steps required to install the bottom 103 onto the outer peripheral portion 101, thereby simplifying the installation of the electric toothbrush 1000 and improving its installation efficiency.

[0060] Furthermore, compared to making the bottom 103 a piece, this embodiment makes the bottom 103 a single piece, so that there are no installation gaps on the bottom 103, reducing the waterproof area that needs to be sealed on the bottom 103, and reducing the difficulty of sealing and waterproofing the bottom 103. In this way, when the bottom 103 is in contact with the table surface for a long time, the possibility of dirt accumulation and mold growth on the bottom 103 is reduced, and the risk of water ingress into the electric toothbrush 1000 is reduced.

[0061] In other embodiments, the bottom 103 includes a first bottom and a second bottom, the first bottom and the first shell 11 being integrally formed, and the second bottom and the second shell 12 being integrally formed. In this way, when the first shell 11 and the second shell 12 are engaged, the handle cylinder 10 can be assembled without installing the bottom 103 on the outer peripheral portion 101, which helps to reduce assembly steps.

[0062] Specifically, the first bottom and the first shell 11 are integrally formed, and the second bottom and the second shell 12 are integrally formed, instead of making the bottom 103 a separate component. This reduces the steps of installing the bottom 103 to the outer peripheral portion 101, thereby simplifying the installation of the electric toothbrush 1000 and improving the installation efficiency of the electric toothbrush 1000.

[0063] Therefore, according to the embodiment of the present application, the electric toothbrush 1000 installs the battery 22 and motor 21 from the open opening 111, which expands the installation operation space for the battery 22 and motor 21 and reduces the difficulty of installing the battery 22 and motor 21. At the same time, by making at least a portion of the bottom 103 and the outer peripheral portion 101 integrally molded, the waterproof area between the bottom 103 and the outer peripheral portion 101 that needs to be sealed is reduced, which reduces the difficulty of sealing and waterproofing. In this way, when the bottom 103 is in long-term contact with the table surface, the possibility of dirt accumulation and mold growth at the bottom 103 is reduced, and the risk of water ingress into the electric toothbrush 1000 is reduced.

[0064] The electric toothbrush 1000 according to a specific embodiment of this application is described below with reference to the accompanying drawings.

[0065] In some specific embodiments of this application, such as Figures 1-4 As shown, the electric toothbrush 1000 includes a handle tube 10 and a motor 20.

[0066] In some embodiments of this application, the bottom 103 includes a first bottom and a second bottom. The first bottom and the first shell portion 11 are integrally formed, and the second bottom and the second shell portion 12 are integrally formed. The cross-sectional area of ​​the first bottom is larger than that of the second bottom. This makes it easier to have a shorter seam between the first bottom and the second bottom, thereby reducing the area of ​​the bottom 103 that needs to be sealed, reducing the difficulty of sealing and waterproofing the electric toothbrush 1000, and reducing the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush 1000.

[0067] Specifically, the electric toothbrush 1000 is generally cylindrical or near-cylindrical in shape. In order to better support the electric toothbrush 1000, the central area of ​​the bottom 103 is more likely to come into contact with water or dirt. By forming a larger area of ​​the first bottom 103 on the first shell 11, the gap between the first bottom and the second bottom can be shorter. At the same time, the first bottom can define the central area of ​​the bottom 103, thereby reducing the area of ​​the bottom 103 that needs to be sealed, reducing the difficulty of sealing and waterproofing the electric toothbrush 1000, and reducing the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush 1000.

[0068] It should be explained here that a quasi-cylindrical shape can be an elliptical cylinder, a prism, a frustum, a curved cylinder, or a cylinder with corrugations, protrusions, or depressions; or, a quasi-cylindrical shape includes two or more arc-shaped surfaces with different curvatures, and multiple arc-shaped surfaces with different curvatures enclose and form a quasi-cylindrical shape. No further restrictions are imposed here.

[0069] Furthermore, the first bottom and the end face of the first shell 11 facing the opening 111 are joined to form a first end face, and the second bottom and the end face of the second shell 12 facing the opening 111 are joined to form a second end face. The first end face and the second end face are sealed together, and the outer edge of the second end face is located inside the outer edge of the first end face. In this way, when the bottom 103 is supported on the placement table, the first bottom is supported on the placement table, and the second bottom is slightly higher than the first bottom. At the same time, the joint between the first end face and the second end face is higher than the first bottom. This avoids the second bottom from directly contacting the placement table and prevents the joint between the first end face and the second end face from directly contacting the placement table. This improves the sealing and waterproof performance of the electric toothbrush 1000 and reduces the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush 1000.

[0070] In some optional embodiments of this application, the outer edge of the second end face defines the boundary line between the first end face and the second end face, and the lower part of the boundary line is a convex curve. Specifically, the boundary line is located inside the outer edge of the first end face so that when the bottom 103 is supported on the placement surface, the boundary line is higher than the first bottom, thereby preventing the boundary line from directly contacting the placement surface, which facilitates the improvement of the sealing and waterproof performance of the electric toothbrush 1000 and reduces the possibility of dirt accumulation and mold growth at the boundary line.

[0071] Furthermore, the lower portion of the dividing line is a convex curve, which facilitates further control of the distance between the dividing line and the first bottom, making it less likely for water on the placement surface to enter the dividing line. Specifically, compared to making the lower portion of the dividing line a straight line, making it a convex curve allows for a larger second shell portion 12 while making it even less likely for water on the placement surface to enter the inner side of the dividing line. Specifically, in the upward direction, the distance between the curve and the first bottom gradually increases in the vertical direction, making it even less likely for water on the placement surface to enter the inner side of the dividing line, thereby further improving the sealing and waterproofing of the electric toothbrush 1000 and reducing the possibility of dirt accumulation and mold growth at the dividing line.

[0072] It should be explained that the lower part of the dividing line is a convex curve, which includes, but is not limited to, arcs, parabolas, and quasi-arcs.

[0073] In some specific embodiments of this application, such as Figure 3 , Figure 5 As shown, the first bottom is provided with a support surface 1031 for supporting the tabletop. The lowest point of the dividing line is higher than the support surface 1031. In this way, the large area of ​​the support surface 1031 on the first bottom can stably support the electric toothbrush 1000 to be placed vertically, while reducing the possibility of the second bottom, the dividing line and the tabletop colliding, and reducing the possibility of dirt and mold accumulating at the second bottom and the dividing line.

[0074] Specifically, the lowest point of the dividing line is higher than the support surface 1031. In other words, the second bottom is entirely higher than the support surface 1031. At this time, the dividing line is higher than the support surface 1031. This way, when the support surface 1031 of the electric toothbrush 1000 is supported on the placement surface, the dividing line can be prevented from directly contacting the placement surface, thereby preventing water on the placement surface from entering the receiving cavity from the dividing line.

[0075] In some embodiments, the first end face and the second end face have the same shape, and both the first end face and the second end face are parallel to the first direction. This makes it easier to reduce the area of ​​the first end face and the second end face, thereby reducing the area on the first end face and the second end face that needs to be sealed. At the same time, the planar sealing and waterproofing process is simpler, reducing the difficulty of sealing and waterproofing the electric toothbrush 1000.

[0076] The first end face includes two straight planes 501 and one arc-shaped plane 502. The two straight planes 501 are spaced apart along a third direction and extend along a first direction. The arc-shaped plane 502 connects the lower ends of the two straight planes 501.

[0077] The first end face and the second end face have the same shape. The second end face includes two straight planes 501 and one arc-shaped plane 502. The two straight planes 501 are spaced apart along a third direction and extend along a first direction. The arc-shaped plane 502 connects the lower ends of the two straight planes 501.

[0078] Specifically, the outer edge of the arc-shaped plane 502 of the second end face defines the aforementioned downward convex curve.

[0079] In some embodiments, the first end face and the second end face are fixed and sealed by processes such as dispensing or ultrasonic welding.

[0080] In some embodiments, a sealing ring is provided between the first end face and the second end face. The sealing ring is adapted to seal the gap between the first end face and the second end face to achieve a sealing fit of the handle cylinder 10, reduce the possibility that external water will enter the receiving cavity from the gap between the first end face and the second end face, and thus facilitate the protection of the movement 20 in the receiving cavity and prevent water from damaging the movement 20.

[0081] In some examples, a sealing part is provided at the installation gap between the first bottom and the second bottom to seal the installation gap between the first bottom and the second bottom, so that the second bottom is completely higher than the support surface 1031, so that the second bottom and the sealing part between the first bottom and the second bottom do not directly contact the placement table surface, thereby further improving the waterproof performance, anti-mildew and anti-corrosion performance of the second bottom and the sealing part.

[0082] In some specific embodiments of this application, the battery 22 and the motor 21 are mounted on the first housing portion 11 through the opening 111. Since the first bottom defines a support surface 1031 for supporting the electric toothbrush 1000, placing the motor 21 and the battery 22 in the first housing portion 11 can concentrate the center of gravity in the first housing portion 11, allowing the first bottom to more stably support the electric toothbrush 1000. This avoids the situation where placing the motor 21 and the battery 22 in the second housing portion 12 would cause the center of gravity to be closer to the second housing portion 12, thus preventing the first bottom from effectively supporting the electric toothbrush 1000 when placed vertically.

[0083] In some embodiments, such as Figure 3 As shown, the width of the first housing portion 11 in the second direction is greater than the width of the second housing portion 12 in the second direction. This facilitates the differentiation between the first housing portion 11 and the second housing portion 12 during installation, preventing mistake-proofing during the installation process. It also allows the first housing portion 11 to form a deeper mounting groove 119, enabling it to better enclose and define the movement, thus reducing the difficulty of installing the movement.

[0084] In some embodiments of this application, such as Figure 3 As shown, the top 102, bottom 103, and first shell 11 or second shell 12 are integrally molded. By integrally molding the top 102, bottom 103, and one of the shells, the number of individual components for the top 102 can be reduced, and the assembly and fitting processes for the top 102 can be reduced. At the same time, by sealing the top 102, bottom 103, and one of the shells, the areas that need to be sealed and waterproofed between the top 102 and the shell, and between the bottom 103 and the shell, can be reduced, making it easier to waterproof the electric toothbrush 1000 and improving the sealing performance of the electric toothbrush 1000.

[0085] In some embodiments of this application, such as Figure 3 As shown, in the second direction, the width of the first housing portion 11 is greater than the width of the second housing portion 12. This facilitates the differentiation between the first housing portion 11 and the second housing portion 12 during installation, preventing mistake-proofing during the installation process. It also allows the first housing portion 11 to form a deeper mounting groove 119, enabling it to better enclose and define the movement, thus reducing the difficulty of installing the movement 20.

[0086] In some embodiments, the first housing 11, bottom 103, and top 102 are integrally formed, and the first housing 11, bottom 103, and top 102 together define a mounting groove 119, which facilitates first fixing the battery 22 to the first housing 11, and then fixing the second housing 12 to the first housing 11, so that the second housing 12 closes the opening 111, thereby providing a sealed environment for the battery 22 and preventing water from entering the receiving cavity and damaging the mechanism 20.

[0087] It should be explained here that the width of the first shell portion 11 in the second direction refers to the distance between the two ends of the first shell portion 11 in the second direction; the width of the second shell portion 12 in the second direction refers to the distance between the two ends of the second shell portion 12 in the second direction.

[0088] In some embodiments of this application, the top 102 is integrally formed with the first shell portion 11 or the second shell portion 12. This allows the handle cylinder 10 to be assembled when the first shell portion 11 and the second shell portion 12 are engaged in the second direction, eliminating the need to install the top 102 on the outer peripheral portion 101 and reducing assembly steps.

[0089] Specifically, the top 102 is integrally formed with the first shell portion 11 or the second shell portion 12, rather than being a separate component. This reduces the steps required to install the top 102 onto the outer peripheral portion 101, thereby simplifying the installation of the electric toothbrush 1000 and improving its installation efficiency.

[0090] In some other embodiments of this application, the top 102 includes a first top and a second top. The first top and the first shell 11 are integrally formed, and the second top and the second shell 12 are integrally formed. In this way, when the first shell 11 and the second shell 12 are engaged, the handle cylinder 10 can be assembled without installing the top 102 on the outer peripheral portion 101, which helps to reduce assembly steps.

[0091] Specifically, the first top and the first shell 11 are integrally molded, and the second top and the second shell 12 are integrally molded, instead of making the top 102 a separate component. This reduces the steps of installing the top 102 to the outer peripheral portion 101, thereby simplifying the installation of the electric toothbrush 1000 and improving the installation efficiency of the electric toothbrush 1000.

[0092] In some optional embodiments of this application, such as Figure 1 , Figure 7 , Figure 8 As shown, the first shell 11 and the top 102 are integrally formed. The top 102 is provided with a through hole 104. The motor 21 includes a motor shaft 211, which passes through the through hole 104 and is partially exposed, so that the motor 21 can output power to the outside through the motor shaft 211.

[0093] Specifically, the larger space at the end of the first housing 11 facilitates the provision of a through hole 104 on the top 103; simultaneously, the complete through hole 104 can be used for the positioning and installation of the motor shaft 211, reducing the assembly difficulty of the motor 21. This effectively avoids the problem of reduced sealing performance caused by the incomplete hole due to the motor 21 drive, making it easier to seal the through hole 106 and the motor shaft 211, thus improving the waterproof performance of the electric toothbrush 1000.

[0094] In some embodiments, such as Figure 1 , Figure 2 As shown, the electric toothbrush 1000 also includes a brush head 90, which is detachably connected to the exposed part of the motor shaft 211. The motor 21 drives the brush head 90 to vibrate through the motor shaft 211, so as to clean the oral cavity using the brush head 90.

[0095] In some embodiments, the through hole 104 is a single, integral hole rather than a combination of holes. This facilitates the subsequent sealing of the gap between the through hole 104 and the motor shaft 211, reducing the possibility that water may enter the receiving cavity from the through hole 104.

[0096] When the motor 21 is placed in the receiving cavity, since the motor shaft 211 of the motor 21 needs to extend out of the receiving cavity from the through hole 104 of the top 103, when the motor 21 is installed into the receiving cavity, the motor 21 can enter the receiving cavity from the opening 111 in an inclined direction, and the motor shaft 211 can extend out of the receiving cavity from the through hole 104 in an inclined direction. After the motor shaft 211 extends out of the receiving cavity from the through hole 104, the extension direction of the motor 21 can be adjusted from the opening 111.

[0097] Furthermore, the size of the through hole 104 is larger than the size of the motor shaft 211, so that the motor shaft 211 can extend out of the receiving cavity from the through hole 104 in an inclined direction.

[0098] In some embodiments of this application, the bottom 103 includes a first bottom and a second bottom, and the top 102 includes a first top 102 and a second top 102. The first top, the first bottom, and the first shell portion 11 are integrally formed, and the second top, the second bottom, and the second shell portion 12 are integrally formed. By integrally forming the first top, the first bottom, and the first shell portion 11, and by integrally forming the second top, the second bottom, and the second shell portion 12, the number of separate top components can be reduced, and the installation and assembly processes for the top can be reduced.

[0099] Meanwhile, the first top, first bottom and first shell 11 are integrally formed, and the second top, second bottom and second shell 12 are integrally formed, which reduces the areas that need to be sealed and waterproofed between the top and shell and between the bottom and shell, making it easier to reduce the difficulty of waterproofing the electric toothbrush 1000 and improving the sealing performance of the electric toothbrush 1000.

[0100] In some optional embodiments of this application, such as Figures 3-5As shown, the first top, the first bottom, and the end face of the first shell 11 facing the opening form a first mating surface 51, and the second top, the second bottom, and the end face of the second shell 12 facing the opening form a second mating surface 52. The first mating surface 51 and the second mating surface 52 are sealed together to provide a sealed environment for the mechanism 20 inside the cavity, preventing external water from entering the cavity and preventing water from damaging the battery 22 inside the cavity.

[0101] Specifically, the sealing of the first mating surface 51 and the second mating surface 52 is achieved by sealing the first shell portion 11 and the second shell portion 12, the first top and the second top, and the first bottom and the second bottom, so as to prevent water from entering the handle tube 10 and improve the waterproof performance of the electric toothbrush 1000.

[0102] The outer edge of the second mating surface 52 is located inside the outer edge of the first mating surface 51. This way, when the bottom 103 is supported on the tabletop, the first bottom is supported on the tabletop, and the second bottom is slightly higher than the first bottom. At the same time, the joint between the first mating surface 51 and the second mating surface 52 is higher than the first bottom. This avoids the second bottom from directly contacting the tabletop and prevents the joint between the first mating surface 51 and the second mating surface 52 from directly contacting the tabletop. This improves the sealing and waterproofing of the electric toothbrush 1000 and reduces the possibility of dirt accumulation and mold growth in the gaps of the electric toothbrush 1000.

[0103] It should be explained here that the first bottom and the end face of the first shell 11 facing the opening 111 together form the first end face, which is part of the first mating surface 51. The second bottom and the end face of the second shell 12 facing the opening 111 together form the second end face, which is part of the second mating surface 52.

[0104] In some embodiments, the first mating surface 51 and the second mating surface 52 are fixed and sealed by processes such as dispensing or ultrasonic welding.

[0105] In some embodiments, a sealing ring is provided between the first mating surface 51 and the second mating surface 52. The sealing ring is adapted to seal the gap between the first mating surface 51 and the second mating surface 52 to achieve a sealed fit between the first shell portion 11 and the second shell portion 12, thereby reducing the possibility that external water will enter the receiving cavity from the gap between the first mating surface 51 and the second mating surface 52, and thus facilitating the protection of the battery 22 in the receiving cavity and preventing water from damaging the battery 22.

[0106] In some embodiments, the first housing portion 11 and the second housing portion 12 are fixedly connected by screws or snaps.

[0107] In some optional embodiments of this application, the first mating surface 51 and the second mating surface 52 are both parallel to the first direction. This makes it easier to reduce the area of ​​the first mating surface 51 and the second mating surface 52, thereby reducing the area on the first mating surface 51 and the second mating surface 52 that needs to be sealed. At the same time, the planar sealing and waterproofing process is simpler, reducing the difficulty of sealing and waterproofing the electric toothbrush 1000.

[0108] In some specific embodiments of this application, such as Figures 3-5 As shown, the first mating surface 51 and the second mating surface 52 have the same shape. The first mating surface 51 and the second mating surface 52 are closed annular planes so that after the first mating surface 51 and the second mating surface 52 are sealed together, the second shell part 12 can fully seal the open opening 111 and ensure the sealing of the receiving cavity.

[0109] Specifically, the second mating surface 52 and the first mating surface 51 are the same in size and shape, so that the first mating surface 51 and the second mating surface 52 can be smoothly mated.

[0110] In some specific embodiments of this application, such as Figures 3-5 As shown, the first mating surface 51 includes two straight planes 501 and two curved planes 502. The two straight planes 501 are spaced apart along a third direction and extend along a first direction. The two curved planes 502 are located on both sides of the straight planes 501 in the first direction. The third direction is perpendicular to the first direction.

[0111] Specifically, the second mating surface 52 and the first mating surface 51 have the same shape. The second mating surface 52 includes two straight planes 501 and two arc-shaped planes 502. The two straight planes 501 are spaced apart along a third direction and extend along a first direction. The two arc-shaped planes 502 are located on both sides of the straight planes 501 in the first direction.

[0112] The first mating surface 51 and the second mating surface 52 can be similar to a racetrack-shaped plane, so as to ensure the size of the opening 111, allowing the battery 22 to be smoothly placed in the receiving cavity from the opening 111, while facilitating the sealing and mating of the first mating surface 51 and the second mating surface 52.

[0113] In some embodiments, the width of the first shell portion 11 in the second direction is greater than the width of the second shell portion 12 in the second direction. Specifically, by making the width of the first shell portion 11 in the second direction greater than the width of the second shell portion 12 in the second direction, it is easier to make the perimeter of the first mating surface 51 and the second mating surface 52 smaller. Even if the perimeter of the mating surfaces of the first shell portion 11 and the second shell portion 12 is smaller, it is easier to reduce the area that needs to be sealed on the first mating surface 51 and the second mating surface 52, thereby facilitating a better seal between the first shell portion 11 and the second shell portion 12 and reducing the possibility that water may enter the receiving cavity from the mating surfaces of the first shell portion 11 and the second shell portion 12.

[0114] In some embodiments of this application, the electric toothbrush 1000 includes a charging port 105, which is disposed on the outer peripheral portion 101 adjacent to the bottom. This prevents the charging port 105 from directly contacting the surface when the bottom 103 of the electric toothbrush 1000 is supported on a table, thereby reducing the possibility of water from the surface entering the charging port 105, reducing the risk of the charging port 105 coming into contact with water or dirt, reducing the possibility of water ingress, dirt accumulation, and mold growth in the charging port 105 of the electric toothbrush 1000, and improving the safety of the electric toothbrush.

[0115] The central axis of the charging port 105 passes through the open opening 111, which allows the charging port 105 to be demolded and formed using the space of the open opening 111, reducing the molding difficulty of the charging port 105; at the same time, the operating space of the open opening 111 can be used to electrically connect the charging port 111 to the mechanism 20, which facilitates the reduction of wiring difficulty.

[0116] In some embodiments, such as Figure 3 As shown, the charging port 105 is located on the first shell 11, which makes it easier to reduce the structural settings on the second shell 12, ensure the integrity of the second shell 12, and thus improve the aesthetics of the second shell 12. In this way, when the second shell 12 is used as the front shell of the electric toothbrush 1000, it is easier to improve the overall aesthetics of the electric toothbrush 1000.

[0117] In some optional embodiments of this application, such as Figure 5 , Figure 6 As shown, the charging port 105 is located between the battery 22 and the bottom 103. This makes the charging port 105 closer to the battery 22, which helps to reduce the wiring between the charging port 105 and the battery 22 and facilitates the electrical connection between the charging port 105 and the battery 22. At the same time, it makes the charging port 105 closer to the bottom 103, so that the user is less likely to touch the charging port 105 when holding the hand, thus avoiding affecting the handheld experience.

[0118] In some specific embodiments of this application, such as Figure 5As shown, a first support portion 31 is provided on the first housing portion 11. In the first direction, a first mounting groove 1191 and a second mounting groove 1192 are formed on opposite sides of the first support portion 31. The motor 21 is installed in the first mounting groove 1191 from the open opening 111, and the battery 22 is installed in the second mounting groove 1192 from the open opening 111.

[0119] Specifically, the motor 21 is installed into the first mounting slot 1191 through the open opening 111, and the battery 22 is installed into the second mounting slot 1192 through the open opening 111, facilitating the installation of the motor 21 and the battery 22. Simultaneously, the first support portion 31 separates the battery 22 and the motor 21, preventing the vibration of the motor 21 from being transmitted to the battery 22, thus affecting the energy storage of the battery 22, and also preventing the heat generated by the battery 22 from being directly transferred to the motor 21, thus affecting the performance of the motor 21.

[0120] In addition, when the electric toothbrush 1000 is dropped during drop testing or during use, the first support part 31 can provide support for the battery 22 and the motor 21 in the first direction, so as to prevent the motor 21 and the battery 22 from becoming unusable due to excessive displacement or damage after the drop, thus improving the drop resistance of the electric toothbrush 1000.

[0121] In some specific embodiments of this application, such as Figure 5 As shown, the first shell portion 11 is provided with a second support portion 32. In the first direction, the second support portion 31 is spaced apart from the first support portion 32, and the second support portion 32 and the first support portion 32 together form a second mounting groove 1192.

[0122] Specifically, the motor 21 is supported on the first support portion 31. The first support portion 31 can limit the position of the motor 21 in the first direction, and after the motor 21 is installed on the first support portion 31, it can prevent the motor 21 from moving in the first direction. The battery 22 is supported on the second support portion 32. The second support portion 32 can limit the position of the battery 22 in the first direction, and after the battery 22 is installed on the second support portion 32, it can prevent the battery 22 from moving in the first direction.

[0123] In some embodiments, the first housing 11 is provided with a charging port 105, which is located between the second support 32 and the bottom 103, so that the charging port 105 is set close to the bottom 103. This makes it easier to reserve enough space in the middle and upper part of the handle tube 10, so that the user can hold the electric toothbrush 1000.

[0124] The second support part 32 can support the position of the battery 22 on the one hand, and separate the battery 22 from the charging port 105 on the other hand, so as to avoid direct contact between the battery 22 and the charging port 105, thereby reducing the risk of short circuit between the battery 22 and the charging port 105, and also reducing the possibility of electric toothbrush leakage.

[0125] Meanwhile, since the charging port 105 is located on the outer periphery 101 and has a certain distance from the bottom 103 in the first direction, when the electric toothbrush 1000 is placed vertically along the first direction on a water-stained surface, the possibility of water entering the charging port 105 or the charging port 105 being corroded and moldy can be avoided, which helps to improve the waterproof performance and corrosion resistance of the electric toothbrush 1000.

[0126] In some specific embodiments of this application, the electric toothbrush 1000 further includes an electrical coupling component 62, which is disposed in the receiving cavity and is directly opposite to the charging port 105. The electrical coupling component 62 is electrically connected to the battery 22 through a conductive component, and the battery 22 can be charged through the charging port 105.

[0127] The second support part 32 is provided with a wiring part that cooperates with the conductive part. The wiring part is used to limit the position of the conductive part, so that the conductive part can stably connect the electrical mating part 62 and the battery 22, reducing the possibility of poor contact between the conductive part and the electrical mating part 62 and the battery 22.

[0128] In some specific embodiments of this application, such as Figure 5 As shown, the first housing portion 11 is provided with a first receiving portion 113, and the first receiving portion 113 defines a mating cavity 114 extending in the second direction. The charging port 105 communicates with the mating cavity 114, and the electrical mating component 62 is disposed in the mating cavity 114. The mating cavity 114 can limit the position of the electrical mating component 62.

[0129] Specifically, when the user charges the battery 22 through the charging port 105, the charging end of the charger is inserted into the mating cavity 114 through the charging port 105 and electrically mats with the electrical mating component 62. The mating cavity 114 can guide the movement of the charging end at the charging port 105, so that the charging end can smoothly mate with the electrical mating component 62.

[0130] In some embodiments, such as Figure 3 As shown, the first shell portion 11 and the second shell portion 12 are arranged along the second direction. The first shell portion 11 has an opening 111 on the side facing the second shell portion 12 in the second direction. When the electrical mating part 62 is installed into the mating cavity 114, the electrical mating part 62 can be installed into the mating cavity 114 through the opening 111, which makes it easier to reduce the installation difficulty.

[0131] In some embodiments, such as Figure 5 As shown, the mating cavity 114 is provided with a first sealing adhesive part 72, which wraps the electrical mating part 62 to seal the gap between the electrical mating part 62 and the mating cavity 114, thereby sealing the charging port 105 to prevent water from flowing into the receiving cavity from the charging port 105 and the mating cavity 114.

[0132] In some embodiments, after the electrical mating component 62 is installed into the mating cavity 114 from the opening 111, adhesive can be injected into the mating cavity 114 from the opening 111 to form a first sealant portion 72, wherein the opening 111 is relatively large to facilitate the adhesive injection operation.

[0133] In some optional embodiments of this application, such as Figure 9 , Figure 10 As shown, the electric toothbrush 1000 also includes a sealing plug 73, which at least partially seals the charging port 105 to isolate water in the external environment from the charging port 105, preventing water in the environment from flowing from the charging port 105 to the electrical mating member 62, thereby improving the safety of using the electric toothbrush 1000.

[0134] In some embodiments, such as Figure 10 As shown, the sealing plug 73 has a sealing protrusion 731, which is adapted to mate with the inner wall of the charging port 105 to fully seal the charging port 105, thereby preventing water from the external environment from flowing from the charging port 105 to the electrical mating member 62, thus improving the safety of the electric toothbrush 1000.

[0135] In some optional embodiments of this application, such as Figure 6 As shown, the handle cylinder 10 is provided with a limiting groove 117, and the sealing plug 73 cooperates with the limiting groove 117. The limiting groove 117 is used to limit the position of the sealing plug 73, thereby facilitating the tightness of the connection between the sealing plug 73 and the handle cylinder 10 and ensuring the sealing performance of the sealing plug 73 to the charging port 105.

[0136] In some specific embodiments of this application, such as Figure 5 As shown, the handle sleeve 10 is provided with a second receiving part 115 having a limiting cavity 116. The limiting cavity 116 is connected to the limiting groove 117. The fixing end 732 of the sealing plug 73 extends into the limiting cavity 116 through the limiting groove 117 and is fixed to the limiting cavity 116 to fix the sealing plug 73 on the handle sleeve 10. In this way, when the sealing plug 73 opens the charging port 105 so that the user can charge the battery 22 through the charging port 105, the sealing plug 73 will not fall off, thereby preventing the sealing plug 73 from being lost.

[0137] In some embodiments, the first housing portion 11, the first receiving portion 113, and the second receiving portion 115 are integrally formed, and the portion where the first receiving portion 113 and the first housing portion 11 intersect in the second direction defines the charging port 105.

[0138] The central axes of the first receiving portion 113 and the second receiving portion 115 pass through the opening 111, so as to form the first receiving portion 113 and the second receiving portion 115 using the opening 111.

[0139] In some embodiments, the sealing plug 73 is a rubber part, and the sealing plug 73 has the ability to undergo elastic deformation. When it is necessary to open the charging port 105 to charge the battery 22, the sealing plug 73 can be pulled to move the sealing protrusion 731 of the sealing plug 73 out of the charging port 105. When it is necessary to seal the charging port 105, the sealing plug 73 can be pulled again to reseal the charging port 105.

[0140] In some embodiments, such as Figure 5 As shown, a second sealing adhesive portion 72 is provided in the limiting cavity 116. The second sealing adhesive portion 72 wraps around and fixes the fixing end 732 to position the sealing plug portion 73 when it is separated from the charging port 105. The second sealing adhesive portion 72 seals the limiting cavity 116 while fixing the fixing end 732 of the sealing plug portion 73, thereby fixing the sealing plug portion 73 to the handle cylinder 10 and preventing the sealing plug portion 73 from being lost.

[0141] In some embodiments, the limiting cavity 116 extends along the second direction. After the fixed end 732 of the sealing plug portion 73 extends into the limiting cavity 116 from the limiting groove 117, glue can be injected into the limiting cavity 116 from the opening 111 to form a second sealing glue portion 72. The opening 111 has a large size to facilitate the glue injection operation.

[0142] After forming the second sealant portion 72 and fixing the fixing end 732 of the sealing plug portion 73 with the second sealant portion 72, the portion of the fixing end 732 that extends beyond the sealing cavity can be cut off.

[0143] In some specific embodiments of this application, such as Figure 8 As shown, the electric toothbrush 1000 also includes a support bracket 80, which covers the side of the motor 21 facing the second housing portion 12. The support bracket 80 has a separator 81, which is located on the side of the motor 21 facing the battery 22. The separator 81 is in a stop-fitting relationship with the first support portion 31, so that the motor 21 is supported by the first support portion 31 and the separator 81 together, and the motor 21 and the battery 22 are separated by the first support portion 31 and the separator 81.

[0144] In some embodiments, such as Figure 5 , Figure 8As shown, the support bracket 80 is provided with a first mating hole and a second mating hole. The first mating hole is located on the separator 81, and the second mating hole is arranged at intervals with the first mating hole along a first direction. The first support part 31 is provided with a first fixing hole 311, and the first housing part 11 is provided with a second fixing hole. The second fixing hole and the first fixing hole 311 are arranged at intervals along the first direction. The first fastener 33 is adapted to pass through the first mating hole and the first fixing hole 311, and the second fastener is adapted to pass through the second mating hole and the second fixing hole, so as to realize the fixed connection between the support bracket 80 and the first housing part 11, and then use the support bracket 80 to fix the position of the motor 21.

[0145] In some embodiments, the periphery of the support bracket 80 extends beyond the separator 81 in a first direction, such that a portion of the periphery of the support bracket 80 covers the side of the battery 22 facing the second housing portion 12, so that the position of the battery 22 can be defined by the support bracket 80.

[0146] In some embodiments, such as Figure 8 As shown, the electric toothbrush 1000 also includes a circuit board 23, at least a portion of which is supported on the side of the support bracket 80 facing the second housing portion 12, and the circuit board 23 communicates with the motor 21.

[0147] In some embodiments, such as Figure 8 As shown, the electric toothbrush 1000 also includes a circuit board 23, at least a portion of which is supported on a first support 31, and the circuit board 23 communicates with the motor 21.

[0148] In some examples, the circuit board 23 is fixed to the first support 31 by means of adhesive, screws, etc.

[0149] In some examples, the electric toothbrush 1000 also includes a display screen supported on the side of the circuit board 23 facing the second housing 12, the second housing 12 having an interaction area 121 disposed opposite to the display screen.

[0150] Furthermore, such as Figure 2 As shown, the second shell 12 is provided with an interactive area 121. When using the electric toothbrush 1000, the user can control the electric toothbrush 1000 through the interactive area 121.

[0151] In some embodiments, such as Figure 2 , Figure 3 As shown, the interactive area 121 includes a visible part 1211 and a button part 1212.

[0152] In some embodiments, the handle cylinder 10 further includes a transparent shell disposed on the second shell portion 12 and defining a visible portion 1211.

[0153] In some examples, the transparent shell is integrally formed with the second shell portion 12.

[0154] In some specific embodiments of this application, such as Figure 8 , Figure 9 As shown, a seal 61 is provided between the motor shaft 211 and the through hole 104. The seal 61 can seal the gap between the motor shaft 211 and the through hole 104, thereby preventing water from entering the receiving cavity from the gap between the motor shaft 211 and the through hole 104, thus improving the safety of the electric toothbrush 1000.

[0155] The seal 61 is sleeved on the motor shaft 211, and the motor 21 supports the seal 61 to limit the position of the seal 61, so that the seal 61 is located between the motor shaft 211 and the through hole 104. This allows the seal 61 to seal the gap between the motor shaft 211 and the through hole 104, thereby improving the airtightness of the cavity and preventing water from entering the cavity through the gap between the motor shaft 211 and the through hole 104, thus preventing damage to the motor 21 inside the cavity.

[0156] In other specific embodiments of this application, such as Figure 7 As shown, a seal 61 is provided between the motor shaft 211 and the through hole 104. A vibration damping component is wrapped around the outer periphery of the motor 21. The vibration damping component supports the seal 61. The vibration damping component is used to reduce the vibration force transmitted from the motor 21 to the handle cylinder 10 and the seal 61, thereby reducing the vibration frequency of the seal 61. This ensures that the seal 61 seals the gap between the motor shaft 211 and the through hole 104. At the same time, it can reduce the vibration frequency of the handle cylinder 10, reduce the vibration sensation when the user holds the electric toothbrush 1000, and improve the user experience.

[0157] Specifically, the seal 61 is sleeved on the motor shaft 211 and supported by the vibration damper. When the motor 21 is working, the motor 21 outputs power outward through the motor shaft 211. At the same time, the motor 21 itself may vibrate. By using the vibration damper to separate the motor 21 and the seal 61, the vibration force transmitted from the motor 21 to the seal 61 can be reduced, thereby reducing the possibility of the seal 61 moving due to vibration force and ensuring the sealing performance of the seal 61 over the gap between the motor shaft 211 and the through hole 104.

[0158] In some embodiments, the damping element is soft rubber or foam. The soft rubber or foam can buffer the vibration of the motor 21, reduce the vibration force transmitted from the motor 21 to the seal 61, reduce the vibration sensation when the user holds the electric toothbrush 1000, and improve the user experience.

[0159] In some optional embodiments of this application, such as Figure 5As shown, the first housing 11 is provided with a limiting part 112 for limiting the rotation of the motor 21. After the motor 21 is placed in the receiving cavity, the outer periphery of the motor 21 cooperates with the end of the limiting part 112 facing the second housing 12 so as to limit the rotation of the motor 21.

[0160] In some embodiments, such as Figure 5 As shown, the first housing 11 is provided with a plurality of limiting parts 112 on the side facing the second housing 12. The plurality of limiting parts 112 are arranged at intervals along the first direction. The motor 21 cooperates with the plurality of limiting parts 112 to limit the rotation of the motor 21.

[0161] In some embodiments of this application, such as Figure 3 , Figure 4 As shown, one of the first shell portion 11 and the second shell portion 12 has a snap-fit ​​portion 41, and the other snap-fit ​​engagement portion 42 in the first shell portion 11 and the second shell portion 12 engages with the snap-fit ​​portion 41 and the snap-fit ​​engagement portion 42 in a second direction to achieve a fixed engagement between the first shell portion 11 and the second shell portion 12.

[0162] In some embodiments, the first housing portion 11 is provided with a snap-fit ​​portion 41, which defines a snap-fit ​​groove, and the second housing portion 12 is provided with a snap-fit ​​mating portion 42, which has a snap-fit ​​protrusion extending in a second direction. When the first housing portion 11 and the second housing portion 12 are installed together in the second direction, the snap-fit ​​protrusion extends into the snap-fit ​​groove, thereby realizing the snap-fit ​​mating of the snap-fit ​​portion 41 and the snap-fit ​​mating portion 42, and realizing the fixed connection of the first housing portion 11 and the second housing portion 12.

[0163] Other components and operations of the electric toothbrush according to the embodiments of this application are known to those skilled in the art and will not be described in detail here.

[0164] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and 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, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more. In the description of this application, "above" or "below" a second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them.

[0165] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0166] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0167] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that 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.

[0168] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric toothbrush, comprising a handle, characterized in that, The handle includes: A handle cylinder includes an annular outer periphery. In a first direction, the annular outer periphery has a top and a bottom at both ends, and the outer periphery, the top, and the bottom together define a receiving cavity. The mechanism includes a battery and a motor, wherein the battery and the motor are disposed within the receiving cavity; The outer periphery includes a first shell portion and a second shell portion arranged along a second direction. The first shell portion defines an opening on the side facing the second shell portion, and the second shell portion closes the opening. The battery and motor are inserted into the receiving cavity through the opening and disposed therein. The bottom is integrally formed with the first shell portion or the second shell portion. Alternatively, the bottom may include a first bottom and a second bottom, wherein the first bottom and the first shell portion are integrally formed, and the second bottom and the second shell portion are integrally formed.

2. The electric toothbrush according to claim 1, characterized in that, The bottom includes a first bottom and a second bottom. The first bottom and the first shell are integrally formed, and the second bottom and the second shell are integrally formed. The cross-sectional area of ​​the first bottom is larger than that of the second bottom. The first bottom and the end face of the first shell facing the opening form a first end face. The second bottom and the end face of the second shell facing the opening in the second direction form a second end face. The first end face and the second end face are sealed together. The outer edge of the second end face is located inside the outer edge of the first end face.

3. The electric toothbrush according to claim 2, characterized in that, The outer edge of the second end face defines the boundary line between the first end face and the second end face, and the lower part of the boundary line is a downward convex curve.

4. The electric toothbrush according to claim 3, characterized in that, The first bottom has a support surface for supporting the tabletop, and in the first direction, the lowest point of the dividing line is higher than the support surface.

5. The electric toothbrush according to claim 4, characterized in that, The battery and motor are installed in the first housing through the opening.

6. The electric toothbrush according to claim 1, characterized in that, The top and bottom are integrally formed with the first shell portion.

7. The electric toothbrush according to claim 1, characterized in that, In the second direction, the width of the first shell portion is greater than the width of the second shell portion.

8. The electric toothbrush according to claim 7, characterized in that, The first shell and the top are integrally formed. The top is provided with a through hole. The motor includes a motor shaft, which passes through the through hole and is partially exposed.

9. The electric toothbrush according to claim 1, characterized in that, The bottom includes a first bottom and a second bottom, and the top includes a first top and a second top. The first top, the first bottom, and the first shell portion are integrally formed. The second top, the second bottom, and the second shell portion are integrally formed.

10. The electric toothbrush according to claim 9, characterized in that, The first top, the first bottom, and the end faces of the first shell portion facing the opening form a first mating surface, and the second top, the second bottom, and the end faces of the second shell portion facing the opening form a second mating surface. The first mating surface and the second mating surface are sealed together, and the outer edge of the second mating surface is located inside the outer edge of the first mating surface.

11. The electric toothbrush according to claim 10, characterized in that, Both the first mating surface and the second mating surface are parallel to the first direction.

12. The electric toothbrush according to claim 1, characterized in that, The electric toothbrush includes a charging port, which is disposed on the outer periphery adjacent to the bottom. The central axis of the charging port passes through the open opening, and the charging port is spaced apart from the bottom.

13. The electric toothbrush according to claim 12, characterized in that, The charging port is located between the battery and the bottom.

14. The electric toothbrush according to claim 1, characterized in that, The first housing is provided with a first support portion. In the first direction, a first mounting groove and a second mounting groove are formed on opposite sides of the first support portion, and the motor and the battery are respectively mounted in the first mounting groove and the second mounting groove through the open opening.

15. The electric toothbrush according to claim 14, characterized in that, The first shell portion is provided with a second support portion. In the first direction, the second support portion is spaced apart from the first support portion, and the second support portion and the first support portion together form the second mounting groove.

16. The electric toothbrush according to claim 15, characterized in that, The first shell portion is provided with a charging port, which is located between the second support portion and the bottom portion.

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