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 machine core, a light-transmitting piece and a display screen. The handle shell comprises a body part and a display part installed on the body part, the display part comprises a display table, and the display table protrudes in the direction away from the body part. The movement is arranged in the handle shell. The light-transmitting piece is installed on the display table. The display screen is installed on the display part and arranged opposite to the light-transmitting piece, and light emitted by the display screen can penetrate through the light-transmitting piece to be emitted out of the handle shell. According to the brush handle and the electric toothbrush provided by the embodiment of the invention, the display screen protrudes towards the direction far away from the body part, and the display screen is mounted on the display part and is arranged opposite to the light-transmitting part, so that compared with the display screen arranged in the handle shell, the display screen is not easily blocked by the handle shell; and part of contents on the display screen cannot be seen by the user, so that the use experience of the user can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oral care, in particular to a brush handle and an electric toothbrush. BACKGROUND

[0002] In the related art, an electric toothbrush includes a brush head and a brush handle. The brush handle includes a handle shell, a machine core and a display screen. The machine core and the display screen are both installed in the handle shell. The surface of the handle shell is provided with a light-transmitting piece capable of allowing light emitted by the display screen to pass through. Since the display screen is arranged in the handle shell, the line of sight of a user is easily blocked by the handle shell when the user observes the content of the display screen, so that part of the content on the display screen cannot be seen by the user, thereby affecting the user experience. CONTENT OF THE UTILITY MODEL

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

[0004] The brush handle of the present application is used for an electric toothbrush. The brush handle includes a handle shell, a machine core, a light-transmitting piece and a display screen. The handle shell includes a body portion and a display portion installed on the body portion. The display portion includes a display platform, which protrudes away from the body portion. The machine core is arranged in the handle shell. The light-transmitting piece is installed on the display platform. The display screen is installed on the display portion and is arranged opposite to the light-transmitting piece. Light emitted by the display screen can pass through the light-transmitting piece and exit to the outside of the handle shell.

[0005] In the brush handle of the present application, the display screen protrudes away from the body portion, and the display screen is installed on the display portion and arranged opposite to the light-transmitting piece. Thus, compared with the display screen arranged in the handle shell, the display screen in the present application is not easily blocked by the handle shell, so that part of the content on the display screen cannot be seen by the user, thereby ensuring the user experience. Moreover, the display screen is arranged on the display portion, so that the user can flexibly adjust the distance between the display screen and the light-transmitting piece according to the requirement, thereby improving the observability of the display screen.

[0006] In some embodiments, the size of the outer contour of the projection of the display platform on a projection plane is smaller than the size of the outer contour of the projection of the body portion on the projection plane. The projection plane is parallel to the axis direction of the brush handle and perpendicular to the central axis of the display platform. Thus, the size of the light-transmitting piece is relatively small, so that the light-transmitting piece can be prevented from being damaged when the electric toothbrush is accidentally dropped or impacted, thereby prolonging the service life of the light-transmitting piece.

[0007] In some embodiments, the size of the outer contour of the projection of the display platform on the projection plane is greater than 2 / 3 of the size of the outer contour of the projection of the body portion on the projection plane.

[0008] If the size of the outer contour projected by the display platform is less than 2 / 3 of the size of the outer contour projected by the body part, i.e., the ratio between the size of the outer contour projected by the display platform and the size of the outer contour projected by the body part is less than 2 / 3, the size of the light-transmitting piece is too small, which limits the transmission area of the light emitted by the display screen, and may cause the display content to be blocked, reducing the display effect of the display screen and being not conducive to the user to observe the display content of the display screen. In some embodiments of the present application, the size of the outer contour projected by the display platform is greater than 2 / 3 of the size of the outer contour projected by the body part, so that the light emitted by the display screen has sufficient transmission area, the display content is not blocked, and the user can easily observe the display information of the display screen.

[0009] In some embodiments, the height of the display platform protruding relative to the body part is not greater than 8 mm.

[0010] The height of the display platform protruding relative to the body part is not greater than 8 mm, which can make the brush handle structure compact, and the display platform is not easy to land first when the electric toothbrush falls, reducing the risk of damage to the display platform caused by accidental falling or impact. In addition, the center of gravity of the electric toothbrush can not deviate too much from the axis direction of the brush handle, which does not affect the stability when placed.

[0011] In some embodiments, the brush handle is connected with the electric toothbrush head of the electric toothbrush; the bristles of the electric toothbrush head are spaced from the tangent plane, and the tangent plane is tangent to the outer peripheral surface of the display platform and the outer peripheral surface of the body part.

[0012] Specifically, in the case that the electric toothbrush is placed on a structure having a resting surface such as a desktop, the outer peripheral surface of the display platform and the outer peripheral surface of the body part are both in contact with the resting surface. In this case, the resting surface is the tangent plane, and the bristles are spaced from the tangent plane. That is, in the case that the electric toothbrush is placed on a structure having a resting surface such as a desktop, the bristles will not be in contact with the resting surface, thereby preventing the bristles from being contaminated.

[0013] In some embodiments, the display platform includes a connecting end and an open end, the connecting end is connected with the body part, the open end protrudes away from the body part and is provided with a mounting port, and the light-transmitting piece is mounted in the mounting port.

[0014] The open end protrudes away from the body part and is provided with a mounting port, and the light-transmitting piece is mounted in the mounting port. In this way, the light-transmitting piece can be fixed on the display platform. When the electric toothbrush falls or collides, the open end can absorb part of the impact force, protecting the light-transmitting piece from being broken due to external impact force.

[0015] In some embodiments, the brush handle comprises a first end and a second end opposite to each other, the output end of the core extends from the first end of the brush handle, and the outer surface of the light-transmitting member is inclined relative to the axis of the brush handle; in the direction from the first end of the brush handle to the second end of the brush handle, the distance between the outer surface of the light-transmitting member and the axis of the brush handle gradually increases.

[0016] In some embodiments, the brush handle comprises a first end and a second end opposite to each other, the output end of the core extends from the first end of the brush handle, and the outer surface of the light-transmitting member is inclined relative to the axis of the brush handle; in the direction from the first end of the brush handle to the second end of the brush handle, the distance between the outer surface of the light-transmitting member and the axis of the brush handle gradually increases.

[0017] In some embodiments, the brush handle comprises a first end and a second end opposite to each other, the output end of the core extends from the first end of the brush handle, and the outer surface of the light-transmitting member is inclined relative to the axis of the brush handle; in the direction from the first end of the brush handle to the second end of the brush handle, the distance between the outer surface of the light-transmitting member and the axis of the brush handle gradually decreases.

[0018] In some embodiments, the brush handle comprises a first end and a second end opposite to each other, the output end of the core extends from the first end of the brush handle, and the outer surface of the light-transmitting member is inclined relative to the axis of the brush handle; in the direction from the first end of the brush handle to the second end of the brush handle, the distance between the outer surface of the light-transmitting member and the axis of the brush handle gradually decreases.

[0019] In some embodiments, the display platform is made of plastic, and the light-transmitting member is made of light-transmitting glass or light-transmitting plastic.

[0020] In some embodiments, the display platform is made of plastic, and the light-transmitting member is made of light-transmitting glass or light-transmitting plastic.

[0021] In some embodiments, at least a part of the outer surface of the light-transmitting member protrudes away from the open end of the display platform.

[0022] Specifically, the protruding part of the outer surface of the light-transmitting piece can expand the visual angle of the user, and the user can capture the light transmitted from the display screen through the light-transmitting piece from more angles, thereby improving the visual experience of the user when observing the display screen from different directions. In addition, the protruding part of the outer surface of the light-transmitting piece has a certain curvature, which helps to disperse the reflected light of the light transmitted from the display screen through the light-transmitting piece, reduces the glare phenomenon at a certain angle, and makes the display information of the display screen more easily recognizable.

[0023] In some embodiments, the display platform is provided with a mounting cavity, and the display screen is accommodated in the mounting cavity.

[0024] Specifically, the display platform protrudes away from the body portion, thereby forming a mounting cavity, and the mounting cavity is in communication with the space inside the body portion. On the one hand, the mounting cavity provides accommodation space for the display screen, thereby reducing the interference of the external environment on the display screen. On the other hand, the display screen is installed in the mounting cavity, and is less likely to be blocked by the display platform compared to the case where the display screen is arranged in the space inside the body portion, so that the distance between the display screen and the light-transmitting piece can be reduced, thereby facilitating the observation of the user. On the other hand, the movement core is accommodated in the space inside the body portion, and the display screen is accommodated in the mounting cavity, so that the display screen does not occupy the space inside the body portion, thereby reducing the size of the body portion and facilitating the holding of the user. On the other hand, when the electric toothbrush is working, the movement core and the display screen are accommodated in different spaces and maintain a certain distance, so that the display information can be prevented from being blurred due to the vibration of the movement core, and the display screen can be prevented from being displaced due to the vibration, thereby improving the service life of the display screen.

[0025] In some embodiments, the display platform and the body portion are integrally formed. That is, the display platform and the body portion are an integral structure, thereby improving the bonding strength between the display platform and the body portion, preventing the display platform and the body portion from being separated during the working of the electric toothbrush, and thereby ensuring the stability and reliability of the working of the electric toothbrush.

[0026] In some embodiments, the display platform and the body portion are separately formed, and the display platform and the body portion and / or the movement core are connected by at least one of screw connection, threaded connection, adhesion, and welding. The separate formation facilitates the disassembly and replacement of the display platform 1131 and the body portion 111.

[0027] In some embodiments, in the axial direction of the display platform, the height of the protrusion of the display platform relative to the body portion is greater than or equal to 2.5 mm and less than or equal to 10 mm.

[0028] The height of the display platform protruding relative to the body part is greater than or equal to 2.5 mm and less than or equal to 10 mm, which can provide sufficient installation space for the display screen and make the brush handle structure compact. When the electric toothbrush falls, the display platform is not easy to land first, reducing the risk of damage to the electric toothbrush caused by accidental falling or impact.

[0029] In some embodiments, the outer surface and / or the inner surface of the light-transmitting piece is provided with a light-shielding layer, the light-shielding layer comprises an inner ring and an outer ring opposite to each other, the outer ring is farther away from the axis of the light-transmitting piece than the inner ring in the circumferential direction of the light-transmitting piece, and the light-shielding layer covers at least a region of the light-transmitting piece corresponding to the region between the circumferential side surface of the display screen and the inner wall of the display platform.

[0030] Specifically, in some embodiments, since there is a certain gap between the circumferential side surface of the display screen and the inner wall of the display platform, and the light-transmitting piece has a region corresponding to the gap, the light emitted by the display screen is easy to pass through the space between the gap and the region corresponding to the gap and scatter inside the body part, so that the user cannot clearly observe the display information of the display screen, affecting the display effect of the display screen, and the light may also affect the service life of the elements inside the body part. Therefore, the setting of the light-shielding layer can absorb and block the light transmission from the display screen to the inside of the body part, avoid the transmission and scattering of light inside the body part, reduce reflection and glare, ensure the brightness and clarity of the display screen, help the user to observe the display information, and also avoid the light affecting the elements inside the body part.

[0031] In some embodiments, the light-transmitting piece comprises a first part opposite to the display screen and a second part surrounding the first part, and the height of the inner surface of the second part protruding relative to the handle shell is not greater than the height of the non-display surface of the display screen protruding relative to the handle shell.

[0032] Specifically, the light-transmitting piece comprises a first part opposite to the display screen and a second part surrounding the first part. The first part is used to directly transmit the light emitted by the display screen, ensuring the clear visibility of the display information. The height of the inner surface of the second part protruding relative to the handle shell is not greater than the height of the non-display surface of the display screen protruding relative to the handle shell, so that the display content of the display screen is not easy to be blocked by the display platform, and the user can see the display content of the display screen through the second part.

[0033] In some embodiments, the display screen is connected to the light-transmitting piece near the inner surface of the display screen.

[0034] Specifically, the display screen is connected to the light-transmitting piece near the inner surface of the display screen, which can reduce the gap between the display screen and the light-transmitting piece, prevent the refraction or reflection of light between the surface of the display screen near the light-transmitting piece and the inner surface of the display screen, avoid uneven scattering of light, and ensure the uniformity of light propagation.

[0035] In some embodiments, the display screen is connected to the inner surface of the light-transmitting piece near the display screen by optical glue.

[0036] Specifically, the optical glue has good bonding strength, which can make the connection between the display screen and the light-transmitting piece more firm, and avoid displacement or falling of the display screen and / or the light-transmitting piece due to vibration or impact. In addition, the optical glue has good optical performance, which helps the light emitted by the display screen to be transmitted to the light-transmitting piece, improves the light transmittance, and thus makes the display content of the display screen more clear and visible.

[0037] In some embodiments, the projection of the display screen in the direction of the axis of the handle is located within the projection of the light-transmitting piece in the direction of the axis of the handle.

[0038] Specifically, the projection of the display screen in the direction of the axis of the handle is located within the projection of the light-transmitting piece in the direction of the axis of the handle, i.e., the size of the light-transmitting piece is greater than that of the display screen, so that the light emitted by the display screen is not blocked, i.e., the light emitted by the display screen can all pass through the light-transmitting piece to the outside, thereby expanding the visible angle of the user, and enabling the user to clearly observe the content of the display screen at different angles.

[0039] In some embodiments, the handle shell is provided with a display window, the display window penetrates the display part and the body part, the light-transmitting piece is arranged in the display window, the inner surface of the light-transmitting piece near the display screen is spaced from the movement, the display screen is connected to the inner surface of the light-transmitting piece, and is electrically connected to the movement.

[0040] Specifically, the display window penetrates the display part and the body part, so that the light emitted by the display screen can pass through the display window to the outside. The spacing between the movement and the display screen can avoid the interference of the vibration of the movement on the light emitted by the display screen, and ensure the clarity and stability of the display effect. The connection of the display screen to the inner surface of the light-transmitting piece can shorten the distance between the display screen and the light-transmitting piece, ensure the clear display of the display content, and facilitate the user to observe the display content of the display screen.

[0041] The electric toothbrush provided by the embodiments of the present application comprises the handle and the electric toothbrush head of any one of the above-mentioned embodiments.

[0042] In the electric toothbrush of the embodiment of the present application, the display screen protrudes in a direction away from the body part, and the display screen is mounted on the display part and arranged opposite the light-transmitting piece. In this way, compared with the display screen arranged in the handle shell, the display screen in the present application is not easily blocked by the handle shell, avoiding the situation that part of the content on the display screen cannot be seen by the user, so as to ensure the user experience. Moreover, the display screen is arranged on the display part, so that the user can flexibly adjust the distance between the display screen and the light-transmitting piece according to the requirement, so as to improve the observability of the display screen.

[0043] The above description is only a summary of the technical solutions of the present application. In order to enable the technical means of the present application to be more clearly understood and implemented according to the content of the description, and in order to enable the above and other purposes, characteristics and advantages of the present application to be more apparent and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0044] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, taken in conjunction with the accompanying drawings, in which:

[0045] Figure 1 is a perspective view of an electric toothbrush according to some embodiments of the present application;

[0046] Figure 2 is a cross-sectional view of the electric toothbrush shown in Figure 1

[0047] Figure 3 is an enlarged view of the portion III shown in Figure 2

[0048] Figure 4 is a perspective assembly view of an electric toothbrush according to some other embodiments of the present application;

[0049] Figure 5 is a perspective exploded view of the electric toothbrush shown in Figure 4

[0050] Figure 6 is a cross-sectional view of the electric toothbrush shown in Figure 4

[0051] Figure 7 is an enlarged view of the portion VII shown in Figure 6

[0052] Figure 8 is a perspective assembly view of an electric toothbrush according to some further embodiments of the present application;

[0053] Figure 9 is a perspective exploded view of the electric toothbrush shown in Figure 8

[0054] ​​​​​​Figure 10 is Figure 8 a cross-sectional view of an electric toothbrush shown in FIG.

[0055] Figure 11 is Figure 10 an enlarged view shown in XI in FIG.

[0056] Explanation of main element symbols:

[0057] the electric toothbrush 100;

[0058] the brush handle 10, the handle shell 11, the body part 111, the tapered part 1111, the first end 11111, the second end 11113, the loading part 1113, the display part 113, the display platform 1131, the connecting end 11311, the open end 11312, the mounting cavity 11313, the extension part 11315, the flow guide groove 115, the display window 119, the core 13, the motor 131, the output shaft 133, the light-transmitting piece 15, the outer surface 151, the inner surface 152, the display screen 17, the first end 101, the second end 102;

[0059] the electric toothbrush head 30, the bristles 31, the rod body 33; the sealing element 71; the light-blocking layer 80, the inner ring 81, the outer ring 83; the axis direction X. DETAILED DESCRIPTION

[0060] The embodiments of the present application will be described in detail below with reference to the drawings, in which the same or similar components have the same reference numerals throughout the several views. The embodiments described below are examples in which the embodiments of the present application are explained, and are merely for the purpose of explaining the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0061] In the description of the present application, it should be understood that the terms "thickness", "upper", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship shown in the drawings, and are merely for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. In addition, the terms "first", "second" are for the purpose of description only, and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0062] 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.

[0063] In related technologies, electric toothbrushes include a brush head and a handle. The handle includes a handle housing, a motor, and a display screen. Both the motor and the display screen are installed inside the handle housing. The surface of the handle housing has a light-transmitting element that allows light emitted from the display screen to pass through. Because the display screen is located inside the handle housing, the user's view is easily obstructed by the handle housing when observing the content on the display screen, resulting in some content on the display screen not being visible to the user, thus affecting the user experience. To solve this problem, please refer to... Figures 1 to 3 ,or Figures 4 to 7 ,or Figures 8 to 11 This application provides a brush handle 10 and an electric toothbrush 100.

[0064] Please see Figures 1 to 3 ,or Figures 4 to 7 ,or Figures 8 to 11 The electric toothbrush 100 of this application includes an electric toothbrush head 30 and a handle 10, with the electric toothbrush head 30 mounted on the handle 10. Specifically, the handle 10 can drive the electric toothbrush head 30 to vibrate at a high frequency, thus allowing the electric toothbrush 100 to clean areas in the mouth that need cleaning through the high-frequency vibration of the electric toothbrush head 30. 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, which facilitates the replacement of electric toothbrush heads 30 with different models or materials; furthermore, when the cleaning effect of the electric toothbrush head 30 decreases due to prolonged use, it is easy to replace it with a new one, thereby ensuring the cleaning effect of the electric toothbrush 100.

[0065] The electric toothbrush 100 includes, but is not limited to, a sonic toothbrush, an ultrasonic toothbrush, a plug-in electric toothbrush, a battery-driven electric toothbrush, etc. In some embodiments, the electric toothbrush head 30 includes bristles 31 and a rod 33. The bristles 31 are used to clean teeth. The material of the bristles 31 can be, but is not limited to, nylon, rubber, or pig bristles, etc. Preferably, the bristles 31 can have good toughness and elasticity, so as to better clean the parts to be cleaned in the oral cavity. The brush handle 10 includes a core 13, which is provided with a motor 131. One end of the rod 33 is detachably connected to the output shaft 133 of the motor 131, and the other end is provided with bristles. The rod 33 is generally in the shape of a long strip, so that the rod 33 can be easily extended into the oral cavity, so that the bristles 31 can reach the parts to be cleaned in the oral cavity, thereby ensuring the cleaning effect of the electric toothbrush 100.

[0066] In the present embodiment, the electric toothbrush 100 includes the brush handle 10. It can be understood that the electric toothbrush 100 at least includes the same beneficial effects as the brush handle 10. Therefore, the beneficial effects of the electric toothbrush 100 are described below in the brush handle 10.

[0067] Please refer to Figures 1 to 3 , or Figures 4 to 7 , or Figures 8 to 11 The brush handle 10 of the present embodiment is used for the electric toothbrush 100. The brush handle 10 includes a handle shell 11, a core 13, a light-transmitting piece 15, and a display screen 17. The handle shell 11 includes a body part 111 and a display part 113 mounted on the body part 111. The display part 113 includes a display platform 1131, which protrudes away from the body part 111. The core 13 is arranged in the handle shell 11. The light-transmitting piece 15 is mounted on the display platform 1131. The display screen 17 is mounted on the display part 113 and arranged opposite to the light-transmitting piece 15. The light emitted by the display screen 17 can be transmitted through the light-transmitting piece 15 and emitted to the outside of the handle shell 11.

[0068] The brush handle 10 is a structure for the user to hold, so as to operate and use various functions of the electric toothbrush 100. The brush handle 10 is usually in the structure of a cylinder, so as to make the user feel comfortable when holding. The brush handle 10 can include an anti-slip structure, so as to avoid the electric toothbrush 100 from slipping off the hand during use.

[0069] The handle shell 11 is a structure for loading the movement 13 and other elements of the electric toothbrush 100. The handle shell 11 is generally a shell structure with a length greater than a width and a diameter, and the length direction of the handle shell 11 is the same as the axial direction of the output shaft 133 (the output shaft 133 of the motor 131). In the axial direction of the output shaft 133, one end of the handle shell 11 is provided with a through hole for the output shaft 131 to extend out. The material of the handle shell 11 can be a metal material and / or a non-metal material, the metal material includes but is not limited to aluminum, iron, steel, or aluminum alloy, etc., and the non-metal material includes but is not limited to plastic, etc. In one example, the handle shell 11 can be made of a metal material, so that the structural strength of the handle shell 11 is higher, preventing the handle shell 11 from being damaged during the 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 a non-metal material, so that the weight of the handle shell 11 is lighter, thereby facilitating the lightness of the electric toothbrush 100.

[0070] The display part 113 is mounted to the body part 111. In some embodiments, the body part 111 and the display part 113 are an integral structure, that is, the body part 111 and the display part 113 are an integral structure, thereby improving the bonding strength between the body part 111 and the display part 113, preventing the body part 111 and the display part 113 from being separated during the operation of the brush handle 10, thereby ensuring the stability and reliability of the brush handle 10. In other embodiments, the body part 111 and the display part 113 are a split structure, that is, the body part 111 and the display part 113 are two different structures. In one example, the body part 111 and the display part 113 can be combined together by a detachable connection mode, which includes but is not limited to a buckle connection or a threaded connection, etc. In another example, the body part 111 and the display part 113 can be combined together by a non-detachable connection mode, which includes but is not limited to bonding or welding, etc.

[0071] The display part 113 includes a display platform 1131. The display platform 1131 protrudes away from the body part 111, compared to the display platform 1131 being located inside the body part 111, the accommodation space inside the handle shell 11 is not occupied by the display platform 1131, so that more elements can be accommodated inside the handle shell 11. It can be understood that the protruding direction of the display platform 1131 is inconsistent with the axial direction X of the brush handle 10, that is, the protruding direction of the display platform 1131 is any direction other than the axial direction X of the brush handle 10.

[0072] The core 13 is a structure for driving the electric toothbrush head 30 to vibrate. After the user starts the electric toothbrush 100, the output shaft 133 of the motor 131 in the core 13 will start to vibrate, and drive the brush head 31 to vibrate through the part connected with the brush head 31, so as to clean the teeth through the bristles 31 of the vibrating brush head 31. At this time, the user usually needs to obtain the information of the brush head 31 and the human body features near the mouth outside the toothbrush, so as to locate the tooth area being brushed.

[0073] The light-transmitting piece 15 is arranged opposite to the display screen 17. The light-transmitting piece 15 can be made of glass, plastic, crystal or other materials. The light-transmitting piece 15 can serve as a barrier between the external environment and the inside of the handle shell 11, so as to prevent dust, fluid or other dirt from entering the inside of the handle shell 11 and protect the display screen 17 from being contaminated. The light-transmitting piece 15 can also have certain optical properties. When the display screen 17 is working, the light emitted by the display screen 17 can transmit through the light-transmitting piece 15 and exit to the outside of the handle shell 11, and be received by the human eye. The light-transmitting piece 15 can be one or multiple. In the embodiment of the present application, the light-transmitting piece 15 is one. In the embodiment in which the light-transmitting piece 15 is multiple, the sizes, shapes or transmittances of the multiple light-transmitting pieces 15 can be different or the same. Further, the light-transmitting piece 15 can be coated with different optical property coatings, such as antireflection coatings for improving light transmittance, anti-fog coatings for preventing fogging, light filtering coatings for filtering light of specific wavelengths, and the like.

[0074] The display screen 17 is used to emit light, and the light can transmit through the light-transmitting piece 15 and exit to the outside of the handle shell 11, so as to provide the display information required by the user. The display screen 17 is composed of multiple light-emitting elements, which can form display information in different color and brightness combinations. The display information carried by the light emitted by the display screen 17 includes but is not limited to the time of brushing teeth, the remaining time of brushing teeth, the number of detected dental plaque and the remaining power, etc. The display information helps the user to master the brushing situation in real time, so as to promote the user's oral health management.

[0075] In the brush handle 10 of the embodiment of the present application, the display screen 17 protrudes in the direction away from the body part 111, and the display screen 17 is installed on the display part 113 and arranged opposite to the light-transmitting piece 15. In this way, compared with the display screen 17 arranged in the handle shell 11, the display screen 17 in the present application is not easily blocked by the handle shell 11, so that part of the content on the display screen 17 cannot be seen by the user, thereby ensuring the user's experience; and the display screen 17 is arranged on the display part 113, so that the user can flexibly adjust the distance between the display screen 17 and the light-transmitting piece 15 according to the needs, thereby improving the observability of the display screen 17.

[0076] The brush handle 10 will be further explained in combination with the accompanying drawings.

[0077] Please refer to Figures 1 to 3 , or Figures 4 to 7 , or Figures 8 to 11 If the size of the outer contour of the projection of the display platform 1131 on the projection plane is greater than the size of the outer contour of the projection of the body portion 111 on the projection plane, the display platform 1131 is more likely to be collided or impacted in the case that the electric toothbrush 100 is accidentally dropped or impacted, thereby causing the light-transmitting member 15 to be damaged. In addition, the oversized light-transmitting member 15 also increases the weight and size of the electric toothbrush 100, and increases the risk of the electric toothbrush 100 being broken when it is accidentally dropped. In some embodiments of the present application, the size of the outer contour of the projection of the display platform 1131 on the projection plane is less than the size of the outer contour of the projection of the body portion 111 on the projection plane, the projection plane is parallel to the axis direction X of the brush handle 10 and is perpendicular to the central axis of the display platform 1131. Thus, the size of the light-transmitting member 15 is relatively small, thereby preventing the light-transmitting member 15 from being damaged when the electric toothbrush 100 is accidentally dropped or impacted, and prolonging the service life of the light-transmitting member 15.

[0078] In some embodiments, the size of the outer contour of the projection of the display platform 1131 on the projection plane is greater than 2 / 3 of the size of the outer contour of the projection of the body portion 111 on the projection plane. It should be noted that, in some embodiments, the ratio between the size of the outer contour of the projection of the display platform 1131 on the projection plane and the size of the outer contour of the projection of the body portion 111 on the projection plane can be any value greater than or equal to 2 / 3, or any value between any two values greater than or equal to 2 / 3.

[0079] If the size of the outer contour of the projection of the display platform 1131 on the projection plane is less than 2 / 3 of the size of the outer contour of the projection of the body portion 111 on the projection plane, i.e., the ratio between the size of the outer contour of the projection of the display platform 1131 on the projection plane and the size of the outer contour of the projection of the body portion 111 on the projection plane is less than 2 / 3, the size of the light-transmitting member 15 is relatively small, which limits the transmission area of the light emitted by the display screen 17, and may cause the display content to be blocked, thereby reducing the display effect of the display screen 17 and being not conducive to the user to observe the display content of the display screen 17. In some embodiments of the present application, the size of the outer contour of the projection of the display platform 1131 on the projection plane is greater than 2 / 3 of the size of the outer contour of the projection of the body portion 111 on the projection plane, thereby ensuring that the light emitted by the display screen 17 has sufficient transmission area, the display content is not blocked, and the user can easily observe the display information of the display screen 17.

[0080] Please refer to Figure 2 and Figure 3 , or Figure 5 and Figure 6 , or Figure 9 and Figure 10In some embodiments, the display platform 1131 is raised from the body portion 111 by a height of no more than 8 mm.

[0081] Specifically, the display platform 1131 can be raised from the body portion 111 by a height of 0.8 mm, 1.2 mm, 2.8 mm, 3.3 mm, 4.4 mm, 5.4 mm, 6.4 mm, 7.2 mm, 7.8 mm, or 8 mm, or any value less than 8 mm, or any value between any two values less than 8 mm. If the display platform 1131 is raised from the body portion 111 by a height of more than 8 mm, the display platform 1131 is too high from the body portion 111, and the display platform 1131 is likely to touch the ground first when the electric toothbrush 100 falls, which can cause the display platform 1131 to be damaged. In addition, the display platform 1131 being too high from the body portion 111 can cause the center of gravity of the electric toothbrush 100 to deviate too much from the axis direction X of the brush handle 10, which can affect the stability of the electric toothbrush 100 when placed.

[0082] The display platform 1131 is raised from the body portion 111 by a height of no more than 8 mm, which can make the brush handle 10 compact, and the display platform 1131 is less likely to touch the ground first when the electric toothbrush 100 falls, which can reduce the risk of damage to the display platform 1131 caused by accidental falling or impact. In addition, the display platform 1131 being raised from the body portion 111 by a height of no more than 8 mm can also make the center of gravity of the electric toothbrush 100 not deviate too much from the axis direction X of the brush handle 10, which can not affect the stability of the electric toothbrush 100 when placed.

[0083] Please refer to Figure 5 , Figure 6 and Figure 7 , or Figure 9 , Figure 10 and Figure 11 In some embodiments, the brush handle 10 is connected to the electric toothbrush head 30 of the electric toothbrush 100. The bristles 31 of the electric toothbrush head 30 are spaced apart from the tangent plane, and the tangent plane is tangent to the outer circumferential surface of the display platform 1131 and the outer circumferential surface of the body portion 111.

[0084] Specifically, in the case where the electric toothbrush 100 is placed on a structure having a resting surface such as a table top, the outer circumferential surface of the display platform 1131 and the outer circumferential surface of the body portion 111 are both in contact with the resting surface. In this case, the resting surface is the tangent plane, and the bristles 31 are spaced apart from the tangent plane. That is, in the case where the electric toothbrush 100 is placed on a structure having a resting surface such as a table top, the bristles 31 will not come into contact with the resting surface, thereby preventing the bristles 31 from being contaminated.

[0085] Please refer to Figures 5 to 7 , or Figures 9 to 11In some embodiments, the display platform 1131 comprises a connecting end 11311 and an open end 11312, the connecting end 11311 is connected with the body part 111, and the open end 11312 protrudes away from the body part 111. The open end 11312 is provided with a mounting port, and the light-transmitting piece 15 is mounted in the mounting port.

[0086] In some embodiments, the open end 11312 protrudes away from the body part 111 and is provided with a mounting port, and the light-transmitting piece 15 is mounted in the mounting port. In this way, the light-transmitting piece 15 can be fixed on the display platform 1131. When the electric toothbrush 100 falls or collides, the open end 11312 can absorb part of the impact force, protect the light-transmitting piece 15, and avoid the light-transmitting piece 15 from being broken due to external impact force.

[0087] In some embodiments, the light-transmitting piece 15 is connected with the open end 11312 and exposed outside the display platform 1131.

[0088] Specifically, the light-transmitting piece 15 is mounted on the open end 11312 and exposed outside the display platform 1131, so that the light-transmitting piece 15 is easier to install and disassemble.

[0089] Please refer to Figure 2 and Figure 3 , or Figure 5 and Figure 6 , or Figure 9 and Figure 10 In some embodiments, the brush handle 10 comprises opposite first and second ends 101 and 102, the output shaft 133 of the movement core 13 extends from the first end 101 of the brush handle 10, and the outer surface 151 of the light-transmitting piece 15 is inclined relative to the axis direction X of the brush handle 10. In the direction from the first end 101 of the brush handle 10 to the second end 103 of the brush handle 10, the distance between the outer surface 151 of the light-transmitting piece 15 and the axis X of the brush handle 10 gradually increases.

[0090] Specifically, the movement core 13 is accommodated in the handle shell 11, and the output shaft 133 of the movement core 13 extends from the first end 101 of the brush handle 10 and is connected with the electric toothbrush head 30. In this way, the electric toothbrush head 30 can realize high-frequency vibration under the drive of the movement core 13 to achieve the effect of cleaning teeth. In the present embodiment, when the outer surface 151 of the light-transmitting piece 15 is parallel to the axis direction X of the brush handle 10, that is, the normal line (a line perpendicular to the outer surface 151 of the light-transmitting piece 15) of the light-transmitting piece 15 forms a 90-degree angle with the axis direction X of the brush handle 10, the light-transmitting piece 15 is in a horizontal state; when the normal line of the light-transmitting piece 15 forms a non-90-degree angle with the axis direction X of the brush handle 10, the light-transmitting piece 15 is in an inclined state, that is, the outer surface 151 of the light-transmitting piece 15 is inclined relative to the axis direction X of the brush handle 10.

[0091] The distance between the outer surface 151 of the light-transmitting piece 15 and the axis of the brush handle 10 gradually increases, that is, the outer surface 151 of the light-transmitting piece 15 is closer to the end of the electric toothbrush 100 provided with the electric toothbrush head 30, so that the light-transmitting piece 15 can better adapt to the visual angle of the user when the user uses the electric toothbrush 100, and the light of the display screen 17 can be more effectively transmitted through the light-transmitting piece 15 and conducted to the visual direction of the user, thereby facilitating the user to observe the information displayed on the display screen 17.

[0092] In some embodiments, the distance between the outer surface 151 of the light-transmitting piece 15 and the axis of the brush handle 10 gradually decreases in the direction from the first end 101 of the brush handle 10 to the second end 103 of the brush handle 10.

[0093] Specifically, the distance between the outer surface 151 of the light-transmitting piece 15 and the axis of the brush handle 10 gradually decreases, that is, the outer surface 151 of the light-transmitting piece 15 is closer to the end of the electric toothbrush 100 away from the electric toothbrush head 30. Thus, the foam or liquid on the electric toothbrush head 30 is difficult to splash to the outer surface 151 of the light-transmitting piece 15, which is conducive to keeping the light-transmitting piece 15 clean and ensuring the display information of the display screen 17 to be clearly visible.

[0094] In some embodiments, the hardness of the light-transmitting piece 15 is greater than the hardness of the display platform 1131.

[0095] Specifically, when the electric toothbrush 100 falls or is impacted, the light-transmitting piece 15 with greater hardness has sufficient strength, and the light-transmitting piece 15 can effectively resist external forces in the case of external forces acting on the light-transmitting piece 15, thereby avoiding structural damage of the light-transmitting piece 15 and prolonging the service life of the light-transmitting piece 15. The light-transmitting piece 15 with greater hardness can also support the display platform 1131, thereby avoiding deformation of the display platform 1131 and ensuring the assembly precision between the light-transmitting piece 15 and the display platform 1131.

[0096] In some embodiments, the display platform 1131 is plastic, and the light-transmitting piece 15 is light-transmitting glass or light-transmitting plastic.

[0097] Specifically, the display platform 1131 is plastic, so that the display platform 1131 has a certain elasticity, and in the case that the electric toothbrush 100 falls and the display platform 1131 collides with the ground, the display platform 1131 can have a certain buffering effect, thereby reducing the possibility of damage to the light-transmitting piece 15 and prolonging the service life of the light-transmitting piece 15. The light-transmitting glass has high light transmittance, and the light-transmitting piece 15 made of light-transmitting glass can effectively transmit light and ensure that the display information is clearly visible. The light-transmitting plastic has a lighter weight, and the light-transmitting piece 15 made of light-transmitting plastic can reduce the weight of the electric toothbrush 100.

[0098] Please refer toFigure 2 and Figure 3 or Figure 5 and Figure 6 or Figure 9 and Figure 10 In some embodiments, at least part of the outer surface 151 of the light-transmitting piece 15 is convex in a direction away from the open end 11312 of the display table 1131.

[0099] Specifically, the convex part of the outer surface 151 of the light-transmitting piece 15 can expand the visual angle of the user, and the user can capture the light transmitted from the display screen 17 through the light-transmitting piece 15 from more angles, thereby improving the visual experience of the user when observing the display screen 17 from different directions. In addition, the convex part of the outer surface 151 of the light-transmitting piece 15 has a certain curvature, which helps to disperse the reflected light of the light transmitted from the display screen 17 through the light-transmitting piece 15, reduces the glare phenomenon at a certain angle, and makes the display information of the display screen 17 more easily recognizable.

[0100] Please refer to Figure 2 and Figure 3 or Figure 5 and Figure 6 or Figure 9 and Figure 10 In some embodiments, the connection between the outer peripheral surface of the display table 1131 and the outer peripheral surface of the body part 111 is a smooth concave transition, and the curvature of the concave curve gradually increases.

[0101] Specifically, the concave indicates that the connection between the outer peripheral surface of the display table 1131 and the outer peripheral surface of the body part 111 forms an arc-shaped structure curved in the direction of the interior of the body part 111. Among them, the smooth concave transition can avoid the formation of dead angles at the connection, avoid dirt accumulation, and facilitate cleaning at the connection. The gradually increasing curvature of the concave curve can hinder the flow of water from the outer peripheral surface of the body part 111 to the outer peripheral surface of the display table 1131, reduce the possibility of fluid accumulation on the surface of the light-transmitting piece 15, and ensure that the user can clearly see the content of the display screen 17 through the light-transmitting piece 15.

[0102] Please refer to Figure 5 , Figure 6 and Figure 7 or Figure 9 , Figure 10 and Figure 11 In some embodiments, the display table 1131 is provided with a mounting cavity 11313, and the display screen 17 is accommodated in the mounting cavity 11313.

[0103] Specifically, the display platform 1131 protrudes away from the body portion 111, thereby forming a mounting cavity 11313 which is in communication with the space inside the body portion 111. On one hand, the mounting cavity 11313 provides a space for the display screen 17 to be accommodated, thereby reducing the interference of the external environment to the display screen 17. On the other hand, the display screen 17 is accommodated in the mounting cavity 11313, and is less likely to be blocked by the display platform 1131 compared with the case that the display screen 17 is arranged in the space inside the body portion 111. In this way, the distance between the display screen 17 and the light-transmitting member 15 can be reduced, thereby facilitating the user to observe. On the other hand, the movement mechanism 13 is accommodated in the space inside the body portion 111, and the display screen 17 is accommodated in the mounting cavity 11313. In this way, the display screen 17 does not occupy the space inside the body portion 111, thereby reducing the size of the body portion 111 and facilitating the user to hold the electric toothbrush 100. On the other hand, the movement mechanism 13 and the display screen 17 are accommodated in different spaces when the electric toothbrush 100 is in operation, thereby keeping a certain distance. In this way, the display information can be prevented from being blurred due to the vibration of the movement mechanism 13, and the display screen 17 can be prevented from being displaced due to the vibration, thereby prolonging the service life of the display screen 17.

[0104] In some embodiments, the display platform 1131 is integrally formed with the body portion 111. That is, the display platform 1131 and the body portion 111 are in one integral structure, thereby improving the bonding strength between the display platform 1131 and the body portion 111, preventing the display platform 1131 from being separated from the body portion 111 during the operation of the electric toothbrush 100, and thereby ensuring the stability and reliability of the electric toothbrush 100.

[0105] In other embodiments, the display platform 1131 is separately formed with the body portion 111, that is, the display platform 1131 and the body portion 111 are two different structures. In one example, the display platform 1131 and the body portion 111 and / or the movement mechanism 13 can be combined together by a detachable connection mode, which includes but is not limited to screw connection, buckle connection or thread connection, etc. In another example, the display platform 1131 and the body portion 111 and / or the movement mechanism 13 can be combined together by a non-detachable connection mode, which includes but is not limited to bonding or welding, etc. The display platform 1131 and the body portion 111 are separately formed, which is convenient to disassemble and facilitates the replacement of the display platform 1131 and the body portion 111.

[0106] In some embodiments, the display platform 1131 is separately formed with the body portion 111, and a sealing member 71 is arranged between the display platform 1131 and the body portion 111.

[0107] The sealing member 71 can be made of rubber, silicone, polypropylene, or the like. The sealing member 71 can be one or multiple, and is not limited in the present application. The sealing member 71 can be separately formed and then fitted on the display platform 1131 or the body portion 111, or can be fitted and formed on the display platform 1131 or the body portion 111 in the form of encapsulation or the like. The sealing member 71 can seal the gap between the outer circumferential surface of the display platform 1131 and the body portion 111, prevent fluid from flowing into the body portion 111 through the gap, and improve the waterproof performance of the electric toothbrush 100. In addition, the sealing member 71 has low cost and does not occupy additional installation space.

[0108] Please refer to Figure 5 , Figure 6 and Figure 7 , or Figure 9 , Figure 10 and Figure 11 In some embodiments, the height of the display platform 1131 protruding relative to the body portion 111 in the axial direction of the display platform 1131 is greater than or equal to 2.5 mm and less than or equal to 10 mm. Specifically, the height of the display platform 1131 protruding relative to the body portion 111 can be 2.5 mm, 2.8 mm, 3.5 mm, 4 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 8.5 mm, or 10 mm, or any value between any two of the values.

[0109] If the height of the display platform 1131 protruding relative to the body portion 111 is less than 2.5 mm, the depth of the mounting cavity 11313 is limited, thereby limiting the size of the mounting space (i.e., the mounting cavity 11313) of the display screen 17, which is not conducive to the installation of the display screen 17. If the height of the display platform 1131 protruding relative to the body portion 111 is greater than 10 mm, the height of the display platform 1131 from the body portion 111 is too large, and the display platform 1131 is likely to land first when the electric toothbrush 100 falls, which can cause the display platform 1131 to be damaged. In addition, the height of the display platform 1131 from the body portion 111 is too large, which can cause the center of gravity of the electric toothbrush 100 to deviate too much from the axial direction X of the brush handle 10, thereby affecting the stability of the electric toothbrush 100 when placed.

[0110] The height of the display platform 1131 protruding relative to the body portion 111 is greater than or equal to 2.5 mm and less than or equal to 10 mm, which can provide sufficient mounting space for the display screen 17 and make the structure of the brush handle 10 compact. In addition, the display platform 1131 is less likely to land first when the electric toothbrush 100 falls, thereby reducing the risk of damage to the electric toothbrush 100 caused by accidental falling or impact.

[0111] Please refer to Figure 5 , Figure 6 and Figure 7 , or Figure 9 , Figure 10 andFigure 11 In some embodiments, the outer surface 151 and / or the inner surface 152 of the light-transmitting piece 15 is provided with a light-blocking layer 80, which includes an inner ring 81 and an outer ring 83 opposite to each other, the outer ring 83 is farther away from the axis of the light-transmitting piece 15 than the inner ring 81 in the circumferential direction of the light-transmitting piece 15, and the light-blocking layer 80 covers at least the area on the light-transmitting piece 15 corresponding to the gap between the circumferential side surface of the display screen 17 and the inner wall of the display platform 1131.

[0112] Specifically, in some embodiments, since there is a gap between the circumferential side surface of the display screen 17 and the inner wall of the display platform 1131, and the light-transmitting piece 15 has an area corresponding to the gap, the light emitted by the display screen 17 is easy to pass through the space between the gap and the area corresponding to the gap, and scatter inside the body part 111, so that the user cannot clearly observe the display information of the display screen 17, affecting the display effect of the display screen 17, and the light may also affect the service life of the elements inside the body part 111. Therefore, the light-blocking layer 80 can absorb and block the light transmission from the display screen 17 to the inside of the body part 111, avoid the transmission and scattering of light inside the body part 111, reduce reflection and glare, ensure the brightness and clarity of the display screen 17, help the user to observe the display information, and also avoid the light affecting the elements inside the body part 111.

[0113] In some embodiments, the light-transmitting piece 15 includes a first part 1511 opposite to the display screen 17 and a second part 1513 surrounding the first part 1511, and the height of the inner surface 152 of the second part 1513 protruding relative to the handle shell 11 is not greater than the height of the non-display surface 175 of the display screen 17 protruding relative to the handle shell 11.

[0114] Specifically, the light-transmitting piece 15 includes a first part 1511 opposite to the display screen 17 and a second part 1513 surrounding the first part 1511. The first part 1511 is used to directly transmit the light emitted by the display screen 17, ensuring the clear visibility of the display information. The height of the inner surface 152 of the second part 1513 protruding relative to the handle shell 11 is not greater than the height of the non-display surface 175 of the display screen 17 protruding relative to the handle shell 11, so that the display content of the display screen 17 is not easily blocked by the display platform 1131, and the user can see the display content of the display screen 17 through the second part 1513.

[0115] Please refer to Figure 2 and Figure 3 , or Figures 5 to 7 , or Figure 9 and Figure 11 In some embodiments, the display screen 17 is connected to the inner surface 152 of the light-transmitting piece 15 close to the display screen 17.

[0116] Specifically, the display screen 17 is connected with the inner surface 152 of the light-transmitting piece 15 close to the display screen 17, which can reduce the gap between the display screen 17 and the light-transmitting piece 15, prevent the light from being refracted or reflected between the surface of the display screen 17 close to the light-transmitting piece 15 and the inner surface 152 of the display screen 17, avoid uneven scattering of the light, and ensure the uniformity of the light propagation.

[0117] In some embodiments, the display screen 17 is connected with the inner surface 152 of the light-transmitting piece 15 close to the display screen 17 by optical glue.

[0118] Specifically, the optical glue has good bonding strength, which can make the connection between the display screen 17 and the light-transmitting piece 15 more firm, and avoid displacement or falling of the display screen 17 and / or the light-transmitting piece 15 due to vibration or impact. In addition, the optical glue has good optical performance, which is helpful for the light emitted by the display screen 17 to be transmitted to the light-transmitting piece 15, improves the light transmittance, and thus makes the display content of the display screen 17 more clear and visible.

[0119] In some embodiments, the projection of the display screen 17 on the projection surface is located within the projection range of the light-transmitting piece 15 on the projection surface.

[0120] Specifically, the projection of the display screen 17 on the projection surface is located within the projection range of the light-transmitting piece 15 on the projection surface, i.e., the size of the light-transmitting piece 15 is greater than that of the display screen 17, so that the light emitted by the display screen 17 is not blocked, i.e., the light emitted by the display screen 17 can all pass through the light-transmitting piece 15 to the outside, thereby expanding the visible angle of the user, and enabling the user to clearly observe the content of the display screen 17 at different angles.

[0121] Please refer to Figure 5 , Figure 6 and Figure 7 , or Figure 9 , Figure 10 and Figure 11 In some embodiments, the handle shell 11 is provided with a display window 119, the display window 119 penetrates the display part 113 and the body part 111, the light-transmitting piece 15 is arranged in the display window 119, the light-transmitting piece 15 is spaced apart from the movement 13 close to the inner surface 152 of the display screen 17, the display screen 17 is connected with the inner surface 152 of the light-transmitting piece 15, and is electrically connected with the movement 13.

[0122] Specifically, the display window 119 penetrates the display part 113 and the body part 111, so that the light rays can be emitted from the display screen 17 and then pass through the display window 119 to be emitted to the outside. The interval between the movement core 13 and the display screen 17 can avoid the interference of the vibration of the movement core 13 on the light rays emitted by the display screen 17 when the movement core 13 works, and ensure the definition and stability of the display effect. The display screen 17 is connected with the inner surface 152 of the light-transmitting piece 15, so that the distance between the display screen 17 and the light-transmitting piece 15 can be shortened, and the display content can be clearly displayed, which is convenient for the user to observe the display content of the display screen 17.

[0123] In the description of the present specification, the description referring to the terms "certain embodiments", "in one example", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiments or examples are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0124] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A brush handle for an electric toothbrush, characterized in that, include: The handle housing includes a body portion and a display portion mounted on the body portion, the display portion including a display platform that protrudes in a direction away from the body portion; The movement is housed within the handle housing; A light-transmitting element is mounted on the display platform; and A display screen is mounted on the display unit and is positioned opposite to the light-transmitting element. The light emitted from the display screen can pass through the light-transmitting element and reach the outside of the handle housing.

2. The brush handle according to claim 1, characterized in that, The outer contour of the projection of the display platform onto the projection surface is smaller than the outer contour of the projection of the main body onto the projection surface. The projection surface is parallel to the axial direction of the brush handle and perpendicular to the central axis of the display platform.

3. The brush handle according to claim 2, characterized in that, The outer contour of the projection of the display platform onto the projection surface is larger than 2 / 3 of the outer contour of the projection of the main body onto the projection surface.

4. The brush handle according to claim 1, characterized in that, The height of the protrusion of the display platform relative to the main body is no more than 8mm.

5. The brush handle according to claim 1, characterized in that, The brush handle is connected to the electric toothbrush head of the electric toothbrush; The bristles of the electric toothbrush head are spaced apart from the cutting plane, and the cutting plane is tangent to both the outer peripheral surface of the display stand and the outer peripheral surface of the main body.

6. The brush handle according to claim 1, characterized in that, The display platform includes a connecting end and an open end. The connecting end is connected to the main body, and the open end protrudes in a direction away from the main body and is provided with a mounting port. The light-transmitting element is installed in the mounting port.

7. The brush handle according to claim 1, characterized in that, The brush handle includes a first end and a second end, the output end of the mechanism extends from the first end of the brush handle, and the outer surface of the light-transmitting element is inclined relative to the axial direction of the brush handle. In the direction from the first end to the second end of the brush handle, the distance between the outer surface of the light-transmitting element and the axis of the brush handle gradually increases; or In the direction from the first end to the second end of the brush handle, the distance between the outer surface of the light-transmitting element and the axis of the brush handle gradually decreases.

8. The brush handle according to claim 1, characterized in that, The display platform is made of plastic, and the light-transmitting component is made of light-transmitting glass or light-transmitting plastic.

9. The brush handle according to claim 1, characterized in that, At least a portion of the outer surface of the light-transmitting element protrudes toward the open end away from the display platform.

10. The brush handle according to any one of claims 1-9, characterized in that, The display stand has a mounting cavity, and the display screen is housed in the mounting cavity.

11. The brush handle according to claim 10, characterized in that, The display platform is integrally formed with the main body; or... The display stand and the main body are integrally formed, and the display stand and the main body and / or the mechanism are connected by at least one of the following methods: screw connection, threaded connection, bonding, welding.

12. The brush handle according to claim 10, characterized in that, Along the axial direction of the display platform, the height of the display platform protruding relative to the main body is greater than or equal to 2.5 mm and less than or equal to 10 mm.

13. The brush handle according to claim 10, characterized in that, The outer and / or inner surfaces of the light-transmitting element are provided with a light-shielding layer. The light-shielding layer includes an inner ring and an outer ring facing away from each other. In the circumferential direction of the light-transmitting element, the outer ring is further away from the axis of the light-transmitting element than the inner ring. The light-shielding layer at least covers the area on the light-transmitting element corresponding to the area between the peripheral side of the display screen and the inner wall of the display platform.

14. The brush handle according to claim 10, characterized in that, The light-transmitting element includes a first portion opposite to the display screen and a second portion surrounding the first portion, wherein the height of the inner surface of the second portion protruding relative to the handle shell is not greater than the height of the non-display surface of the display screen protruding relative to the handle shell.

15. The brush handle according to claim 10, characterized in that, The display screen is connected to the light-transmitting element near the inner surface of the display screen.

16. The brush handle according to claim 10, characterized in that, The display screen and the light-transmitting element are connected near the inner surface of the display screen by optical adhesive.

17. The brush handle according to claim 10, characterized in that, The projection of the display screen onto the projection surface is located within the range of the projection of the light-transmitting element onto the projection surface.

18. The brush handle according to claim 10, characterized in that, The handle housing is provided with a display window that extends through the display part and the body part. A light-transmitting element is provided in the display window. The light-transmitting element is close to the inner surface of the display screen and spaced apart from the mechanism. The display screen is connected to the inner surface of the light-transmitting element and is electrically connected to the mechanism.

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

Images