Toothbrush handle and electric toothbrush

Abstract

Disclosed in the present application are a toothbrush handle and an electric toothbrush. The toothbrush handle comprises a casing and an inner mechanism, wherein the casing comprises a main shell and a light-transmitting shell; the main shell fits with the light-transmitting shell to define a mounting cavity; the inner mechanism comprises a circuit board arranged in the mounting cavity and a display member connected to the circuit board; the light-transmitting shell is provided with a light-transmitting portion, through which light emitted from the display member passes; in the radial direction of the casing, the display member is arranged opposite the light-transmitting shell; and the distance between the display member and an outer wall surface of the light-transmitting shell is greater than 2.5 mm.

Description

Brush handle and electric toothbrush Technical Field

[0001] The present application relates to the technical field of oral cleaning devices, and in particular to a brush handle and an electric toothbrush using the brush handle. Background Art

[0002] In an exemplary embodiment, the handle of an electric toothbrush has a display function, for example, it can display the current operating mode of the electric toothbrush, so that the user can know the current operating mode of the electric toothbrush. However, the display element in the existing handle has a poor display effect on the transparent shell of the handle, which is not convenient for the user to observe and affects the user experience.

[0003] Utility Model Content

[0004] The present application provides a brush handle and an electric toothbrush, which can improve the display effect of the display component on the light-transmitting shell of the brush handle and enhance the user experience.

[0005] In a first aspect, an embodiment of the present application provides a brush handle, comprising a housing and a movement, wherein the housing comprises a main shell and a light-transmitting shell, wherein the main shell and the light-transmitting shell cooperate to define a mounting cavity, wherein the movement comprises a circuit board disposed within the mounting cavity and a display element connected to the circuit board, wherein the light-transmitting shell is provided with a light-transmitting portion for light emitted by the display element to pass through;

[0006] Wherein, in the radial direction of the housing, the display element and the light-transmitting shell are arranged opposite to each other, and the distance between the display element and the outer wall surface of the light-transmitting shell is greater than 2.5 mm.

[0007] In some embodiments, in the radial direction of the housing, the distance between the display element and the inner wall surface of the light-transmitting housing is greater than 0.8 mm and less than 2 mm.

[0008] In some embodiments, in the radial direction of the housing, the outer wall of the light-transmitting shell protrudes further outward than the outer wall of the main shell, and there is a height difference between the two, and the height difference is greater than or equal to 0.5 mm and less than or equal to 3 mm.

[0009] In some embodiments, a button is further included. The outer wall of the light-transmitting shell is recessed to form a first mounting groove. The button is arranged in the first mounting groove and has a height difference with the outer wall of the main shell in the radial direction of the housing.

[0010] In some embodiments, the main housing includes a main body section and a raised section provided on the main body section, the main body section is connected to the light-transmitting shell, and an outer wall surface of the light-transmitting shell protrudes more outward than an outer wall surface of the main body section;

[0011] Wherein, the raised section is arranged to surround the outer periphery of the light-transmitting shell.

[0012] Some embodiments further include a light-distributing member disposed on the inner side of the light-transmitting shell so as to evenly transmit the light emitted by the display element to the light-transmitting portion.

[0013] In some embodiments, the light-distributing member includes a light-distributing body and an insertion portion. The light-distributing body is arranged on the inner side of the light-transmitting shell. The insertion portion is connected to the surface of the light-distributing body facing the light-transmitting shell and is inserted into the light-transmitting portion.

[0014] In some embodiments, the display element is a lamp bead module, and the number of the lamp bead modules is multiple groups, and the multiple groups of lamp bead modules are arranged at circumferential intervals along the board surface of the circuit board. The number of the light-transmitting parts is multiple, and one group of the lamp bead modules corresponds to one light-transmitting part.

[0015] In some embodiments, each of the lamp bead modules includes at least two lamp beads, and the at least two lamp beads are spaced apart along the circumference of the board surface of the circuit board;

[0016] Wherein, in the circumferential direction of the board surface of the circuit board, the distance between two adjacent lamp beads of each lamp bead module is less than or equal to 5 mm.

[0017] In some embodiments, the plurality of light-transmitting portions are arranged in a ring shape, and the cross section of each light-transmitting portion is arc-shaped.

[0018] In some embodiments, in the circumferential direction of the light-transmitting shell, a distance between two adjacent light-transmitting portions is greater than 1.2 mm.

[0019] In some embodiments, the light-transmitting housing includes an inner housing and a light-transmitting cover, the main housing is formed with a mounting window, the inner housing covers the mounting window and is connected to the main housing, and the light-transmitting cover is arranged on the outside of the inner housing;

[0020] Wherein, the inner shell is made of non-light-transmitting material, and the light-transmitting portion is provided on the inner shell.

[0021] In some embodiments, a second mounting groove is formed between the main shell and the inner shell, the light-transmitting cover is disposed on the inner shell, partially embedded in the second mounting groove and fixedly connected to the main shell.

[0022] In some embodiments, the light-transmitting cover includes a cover body and a skirt arranged around the outside of the cover body, the cover body is covered on the inner shell, and the skirt is embedded in the second mounting groove and fixedly connected to the main shell;

[0023] The wall surface of the main shell with the second mounting groove cooperates with the wall surface of the inner shell with the second mounting groove to clamp the skirt.

[0024] In some embodiments, at least a portion of the outer wall surface of the light-transmitting cover is formed as a frosted surface or a polished surface.

[0025] In some embodiments, a light shielding member is further included, wherein the light shielding member is disposed in the mounting cavity and includes a light shielding portion and a light guiding portion disposed on the light shielding portion;

[0026] In the radial direction of the housing, the light guiding portion is arranged opposite to the display element and is arranged to guide the light emitted from the display element toward the transparent shell. The light shielding portion is arranged around the outside of the display element and is arranged to shield the light emitted from the display element toward its outside.

[0027] In some embodiments, the light guiding portion is a light guiding groove formed on the light shielding portion, wherein the display element is placed in the light guiding groove.

[0028] In some embodiments, the display element does not protrude from the light guide groove and is disposed toward the opening of the light-transmitting housing;

[0029] and / or, the thickness of the display element is less than or equal to the depth of the light guide groove;

[0030] And / or, there is a gap between the outer side wall of the display element and the groove side wall of the light guide groove.

[0031] In a second aspect, an embodiment of the present application provides an electric toothbrush, comprising a brush handle and a brush head mounted on the brush handle, wherein the brush handle is the brush handle described above, and the brush head is transmission-connected to the movement.

[0032] Based on the brush handle and electric toothbrush of the embodiment of the present application, the present application sets the distance between the display part and the outer wall surface of the light-transmitting cover of the light-transmitting shell to be greater than 2.5 mm, which can ensure that when the light of the display part is transmitted to the outer wall surface of the light-transmitting cover of the light-transmitting shell, there will be a larger distance, so that the light emitted by the final display part appears more uniform and clear, and on the basis of uniform light, it can prevent the occurrence of light spots in the local area of ​​the light-transmitting cover of the light-transmitting shell, so as to avoid the light spots from interfering with the user's vision and affecting the user's usage experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0034] FIG1 is a schematic structural diagram of an embodiment of a brush handle of the present application;

[0035] FIG2 is a cross-sectional view of the section AA shown in FIG1 ;

[0036] FIG3 is a partial enlarged view of point B in FIG2 ;

[0037] FIG4 is a schematic diagram of the exploded structure of the brush handle shown in FIG1 ;

[0038] FIG5 is a structural schematic diagram of the brush handle shown in FIG1 from another perspective;

[0039] FIG6 is a schematic diagram of the connection structure of the main shell of the brush handle and the inner shell of the light-transmitting shell shown in FIG5 ;

[0040] FIG7 is a cross-sectional view of the CC portion shown in FIG6;

[0041] FIG8 is a partial enlarged view of point D in FIG7 .

[0042] Description of Figure Numbers:

[0043] 100. Brush handle; 10. Casing; 10a. Mounting cavity; 10b. Second mounting slot; 11. Main shell; 11a. Mounting window; 111. Main body section; 113. Raised section; 13. Translucent shell; 131. Translucent cover; 131a. First mounting slot; 1311. Cover body; 1312. Smooth surface; 1313. Skirt; 133. Inner shell; 133a. Translucent portion; 30. Movement; 31. Mounting bracket; 33. Display component; 331. Lamp bead module; 3311. Lamp bead; 36. Driving assembly; 37. Circuit board; 39. Power supply unit; 50. Shading component; 51. Shading portion; 53. Light guiding portion; 53a. Light guiding slot; 70. Light distributing component; 71. Light distributing body; 73. Insertion portion; 90. Button.

[0044] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of this application clearer, the following part will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0046] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0047] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances. In addition, in the description of this application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the relevant listed items.

[0049] In an exemplary embodiment, the handle of an electric toothbrush has a display function, for example, it can display the current operating mode of the electric toothbrush, so that the user can understand the current operating mode of the electric toothbrush. However, in the existing technology, the distance between the display element of the handle and the light-transmitting housing in the radial direction of the housing is relatively close, resulting in the light emitted by the display element being unable to be emitted to the light-transmitting housing over a long distance. As a result, the light emitted by the display element is blurred and uneven, making it difficult for the user to observe and affecting the user experience.

[0050] To solve the above problems, please refer to Figures 1 to 2. One aspect of the present application proposes an electric toothbrush, which includes a brush handle 100 and a brush head (not shown in the figure) installed on the brush handle 100. During use, the user holds the brush handle 100, and the brush handle 100 drives the brush head to vibrate at high frequency to clean the oral cavity.

[0051] In order to enable the user to clearly observe the information displayed on the display part 33 of the brush handle 100 during the use of the electric toothbrush, the present application proposes a brush handle 100. In the embodiments of the present application, please refer to Figures 1 to 3. The brush handle 100 includes a housing 10, a movement 30 installed in the housing 10, and a button 90 installed on the housing 10. The brush head is transmission-connected to the movement 30.

[0052] The casing 10 is in the shape of an elongated cylinder, and the main structure of the casing 10 can be made of plastic. For example, suitable exemplary materials that can be used include but are not limited to hard plastics, such as polyethylene, polypropylene (PP), polyamide, polyester, cellulose, SAN, acrylic resin, ABS and other thermoplastic plastics suitable for toothbrush manufacturing. Of course, the main structure of the casing 10 can also be made of metal, such as aluminum alloy, and this application does not impose any restrictions on this.

[0053] Referring to Figures 2 to 4 , the housing 10 includes a mounting cavity 10a. The movement 30 includes a mounting bracket 31 and a drive assembly 36, a power supply unit 39, and a circuit board 37 disposed on the mounting bracket 31. The mounting bracket 31, the display unit 33, the drive assembly 36, the power supply unit 39, and the circuit board 37 are all disposed within the mounting cavity 10a. The drive assembly 36, the power supply unit 39, and the display unit 33 are all electrically connected to the circuit board 37. The drive assembly 36 and the power supply unit 39 can be spaced apart along the length of the mounting bracket 31. The display unit 33 can be connected to and electrically connected to the circuit board 37, and can be indirectly mounted to the mounting bracket 31 via the circuit board 37.

[0054] The display element 33 can be in the form of a lamp bead 3311, a display screen, or the like. When the display element 33 is a lamp bead 3311, the lamp bead 3311 can be mounted on and electrically connected to a circuit board 37. The number of lamp bead 3311 can be multiple, and the multiple lamp bead 3311 can be arranged at intervals along the circumference of the circuit board 37. This arrangement allows the number of lamp bead 3311 to be appropriately increased based on their desired luminous range. This allows for a more uniform luminous effect through the spacing of the multiple lamp bead 3311.

[0055] In order to enable multiple lamp beads 3311 to have the function of displaying different modes, the present application can be that at least two lamp beads 3311 are formed into a group of lamp bead modules 331, that is, each lamp bead module 331 includes at least two lamp beads 3311. Among them, the number of lamp bead modules 331 is multiple, and the multiple groups of lamp bead modules 331 are arranged at intervals along the circumference of the board surface of the circuit board 37. For example, three lamp beads 3311 can be formed into a group of light modules, and the number of light modules is four. The four groups of light modules can respectively represent the polishing and whitening mode, the deep cleaning mode, the gum massage mode, and the tongue coating cleaning mode. In other words, the present application can use a method in which each group of lamp bead modules 331 independently displays a mode, and different colors can be displayed when different modes are displayed. Of course, it can also display a single color, or the colors displayed by two adjacent groups of lamp bead modules 331 are different. In other embodiments, it can also be that at least two groups of lamp bead modules 331 cooperate to display a mode, and different modes can also be distinguished by color, which is not limited to this. The following content still uses the display part 33 as a lamp bead 3311 to further explain how the information displayed by the display part 33 of the electric toothbrush of this application can be clearly observed by the user.

[0056] The mounting bracket 31 may also be an elongated structure, with two compartments spaced apart along its length, through which the drive assembly 36 and the power supply unit 39 are respectively mounted and fixed. The power supply unit 39 provides power to the drive assembly 36 and the display element 33, wherein the power supply unit 39 includes a rechargeable battery, such as a lithium battery. Of course, the power supply unit 39 may also be in the form of a dry cell battery or other form, which is not limited in this application.

[0057] The housing 10 includes a main housing 11 and a light-transmitting housing 13. The main housing 11 and the light-transmitting housing 13 cooperate to define a mounting cavity 10a. The light-transmitting housing 13 includes a light-transmitting portion 133a for light emitted by the display element 33 to pass through. In the radial direction of the housing 10, the display element 33 and the light-transmitting housing 13 are arranged opposite each other, allowing light from the display element 33 to pass outward through the light-transmitting housing 13. Specifically, the main housing 11 can be made of a non-light-transmitting material to enhance the display quality of the light-transmitting housing 13. The light-transmitting portion 133a can be in the form of a light-transmitting hole, a light-guiding column, or other similar form, without limitation.

[0058] In one structural form, please refer to Figures 6 to 8, the light-transmitting shell 13 includes an inner shell 133 and a light-transmitting cover 131, the main shell 11 can be formed with an installation window 11a, the inner shell 133 covers the installation window 11a, and is connected to the main shell 11, and the light-transmitting cover 131 is covered on the outside of the inner shell 133.

[0059] A second mounting groove 10b is formed between the main housing 11 and the inner housing 133. The light-transmitting cover 131 is mounted on the inner housing 133 and partially embedded in the second mounting groove 10b and fixedly connected to the main housing 11. This facilitates the installation of the light-transmitting cover 131 and improves the firmness of the light-transmitting cover 131 when it is mounted on the outer side of the inner housing 133 through the provision of the second mounting groove 10b. Furthermore, the inner housing 133 and the main housing 11 can be an integral structure, that is, they can be integrally formed by injection molding. Of course, the two can also be separate structures and fixed by gluing, hot melting, etc., which is not limited to this. In addition to transmitting light, the light-transmitting cover 131 can also serve as an outer cover with a protective function.

[0060] Furthermore, the inner shell 133 is made of a non-translucent material, and the light-transmitting portion 133a can be provided on the inner shell 133. With this arrangement, the light-transmitting portion 133a can be selectively provided on the inner shell 133 according to the desired localized lighting requirements, so that the light from the lamp bead module 331 can only be emitted outward through the light-transmitting portion 133a of the inner shell 133, achieving a localized lighting effect.

[0061] Based on the two-part structure of the light-transmitting shell 133 and the light-transmitting cover 131, the propagation path of the light emitted by the display element 33 can be to pass through the light-transmitting shell and the light-transmitting cover 131 in sequence and then be dispersed outward. In order to improve the user experience when observing the light at the light-transmitting cover 131, in one structural form, at least a portion of the outer wall surface of the light-transmitting cover 131 is formed into a frosted surface. The blurring effect of the frosted surface makes the light spot formed by the light become blurred, further reducing the impact of the light spot on the display effect. When the user grasps the light-transmitting cover 131, the frosted surface can have a certain anti-slip effect, increasing the friction between the hand and the light-transmitting cover 131, and preventing the electric toothbrush from easily falling from the user's hand during the grasping process. Among them, the outer wall surface of the light-transmitting cover 131 can be formed into a frosted surface as a whole, or the surface corresponding to the position of the display element 33 can be formed into a frosted surface, and this is not limited to this.

[0062] In another structural form, at least a portion of the outer wall of the light-transmitting cover 131 is formed as a light surface 1312. With the light surface 1312, the light surface 1312 can better transmit the light emitted by the display element 33, so that the user can more clearly observe the light emitted by the display element 33 during use. The outer wall of the light-transmitting cover 131 can be formed entirely as the light surface 1312, or the surface corresponding to the display element 33 can be formed as the light surface 1312, without limitation.

[0063] In order to correspond to the number of lamp bead modules 331, the present application sets the number of light-transmitting portions 133a to be multiple, and one light-transmitting portion 133a is set for each group of lamp bead modules 331. And on the basis of corresponding to the number of lamp bead modules 331, there may be a certain interval between two adjacent light-transmitting portions 133a, so that the phenomenon of light leakage between two adjacent groups of lamp bead modules 331 can be avoided to a certain extent. In the structure exemplified in the figure, the cross-section of each light-transmitting portion 133a is arc-shaped, and the multiple light-transmitting portions 133a are arranged in a ring. Under the ring arrangement of the multiple light-transmitting portions 133a with arc-shaped cross-sections, a circular ring shape can be formed, making the overall shape more regular and convenient for users to observe. Of course, the cross-section of each light-transmitting portion 133a can also be square, and the multiple light-transmitting portions 133a are arranged circumferentially to form a square shape, which is not limited in the present application.

[0064] It is understandable that when the light-transmitting shell 13 is configured as a two-part structure of an inner shell 133 and a light-transmitting cover 131, it has the advantages of achieving a localized luminous effect and clear luminescence. Of course, the light-transmitting shell 13 of the present application can also be configured as a single integral structure, that is, the inner shell 133 and the light-transmitting cover 131 are in an integral form, which can simplify the manufacturing process. The following content, still in the form of the light-transmitting shell 13 being configured as a two-part structure of the inner shell 133 and the light-transmitting cover 131, further explains the situation where the electric toothbrush of the present application has a better display effect.

[0065] During actual use, if the distance between the display element 33 and the outer wall of the light-transmitting cover 131 of the light-transmitting shell 13 is short, the display effect of the light emitted by the display element 33 on the light-transmitting cover 131 of the light-transmitting shell 13 will be uneven and relatively blurred. Therefore, the present application sets the distance D1 between the display element 33 and the outer wall of the light-transmitting cover 131 of the light-transmitting shell 13 to be greater than 2.5 mm, that is, the distance D1 in Figure 3 is set to be greater than 2.5 mm. This ensures that when the light of the display element 33 is transmitted to the outer wall of the light-transmitting cover 131 of the light-transmitting shell 13, there will be a larger distance, so that the light emitted by the display element 33 is finally presented more uniformly and clearly. On the basis of uniform light, it can prevent the occurrence of light spots in the light-transmitting cover 131 of the light-transmitting shell 13, so as to avoid the light spots from interfering with the user's vision and affecting the user's experience. At the same time, light from each set of lamp bead modules 331 is prevented from being emitted outwardly from the light-transmitting portions 133a corresponding to other sets of lamp bead modules 331, thereby preventing light leakage. Specifically, the distance D1 between the display element 33 and the outer wall surface of the light-transmitting cover 131 of the light-transmitting housing 13 can be set to 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, 3.2 mm, 3.5 mm, 4.0 mm, 4.5 mm, or 5.0 mm, etc., without limitation.

[0066] In one embodiment, in the radial direction of the housing 10, the distance D2 between the display element 33 and the inner wall surface of the inner shell 133 of the transparent housing 13 is greater than 0.8 mm and less than 2 mm. Specifically, the distance D2 in FIG3 is set to be greater than 0.8 mm and less than 2 mm. This configuration allows light emitted by the display element 33 to travel a longer distance to the inner shell 133 of the transparent housing 13, resulting in more uniform and clear light and avoiding the occurrence of light spots. When the distance D2 between the display element 33 and the inner wall surface of the inner shell 133 of the transparent housing 13 is less than 0.8 mm, the distance between the light emitted by the display element 33 and the inner shell 133 of the transparent housing 13 is shorter, resulting in light spots on the inner shell 133 of the transparent housing 13, which affects the display effect. If the distance D2 between the display element 33 and the inner wall surface of the inner shell 133 of the light-transmitting housing 13 is greater than 2 mm, the light from the display element 33 may be insufficiently bright and dim, making it difficult for the user to see. Specifically, the distance between the display element 33 and the inner wall surface of the inner shell 133 of the light-transmitting housing 13 can be set to 0.9 mm, 1.1 mm, 1.2 mm, 1.4 mm, 1.6 mm, or 1.8 mm, etc., without limitation.

[0067] In one structural form, in the radial direction of the housing 10, the outer wall of the light-transmitting cover 131 of the light-transmitting housing 13 protrudes further outward than the outer wall of the main body section 111 of the main housing 11, and a height difference exists between the two. The height difference is greater than or equal to 0.5 mm and less than or equal to 3 mm. In this way, the light-transmitting cover 131 of the light-transmitting housing 13 protrudes further outward, increasing the distance between the light-transmitting cover 131 of the light-transmitting housing 13 and the display element 33, ensuring more uniform light emitted by the display element 33 and making it easier for the user to observe the display on the light-transmitting cover 131.

[0068] Specifically, the value of the height difference can be set to 0.5 mm, 1 mm, 1.5 mm, 2 mm, 2.5 mm or 3 mm, etc., without limitation.

[0069] In some embodiments, the height difference may be greater than or equal to 0.8 mm and less than or equal to 1.5 mm, without limitation, and may be, for example, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm.

[0070] Furthermore, the outer wall of the light-transmitting cover 131 of the light-transmitting housing 13 is recessed to form a first mounting groove 131a. The button 90 is disposed within the first mounting groove 131a and has a height difference with the outer wall of the main body section 111 in the radial direction of the housing 10. Since the light-transmitting cover 131 of the light-transmitting housing 13 protrudes further outward than the outer wall of the main body section 111 of the main housing 11, the button 90 mounted on the light-transmitting cover 131 also has a height difference with the outer wall of the main body section 111 of the main housing 11, that is, the button 90 also protrudes further outward than the outer wall of the main body section 111. This enhances the functional area of ​​the electric toothbrush handle 100, making it easier for the user to operate and use the brush.

[0071] In order to better integrate the outward-protruding light-transmitting shell 13 with the main shell 11, the main shell 11 of the present application may include a main body section 111 and a raised section 113 provided on the main body section 111. The main body section 111 is connected to the light-transmitting shell 13, and the raised section 113 is arranged to surround the outer periphery of the light-transmitting shell 13. When the raised section 113 is raised, it also surrounds the outer periphery of the light-transmitting cover 131 of the light-transmitting shell 13, thereby improving the integrity of the casing 10.

[0072] In order to further enhance the display effect, in one embodiment, the brush handle 100 of the present application further includes a light shielding member 50 . The light shielding member 50 is disposed in the mounting cavity 10 a and includes a light shielding portion 51 and a light guiding portion 53 disposed on the light shielding portion 51 .

[0073] In the radial direction of the housing 10, the light guide portion 53 is disposed opposite the display element 33 and is configured to guide light emitted from the display element 33 toward the transparent housing 13. The light shielding portion 51 is disposed around the outer side of the display element 33 and is configured to shield light emitted from the display element 33 toward the outside thereof. The light guide portion 53 may be a light guide groove 53a formed on the light shielding portion 51, allowing light to pass through the light guide groove 53a and then propagate to the transparent housing 13. The shape of the light guide groove 53a facilitates the manufacturing and processing of the light shielding member 50.

[0074] With this arrangement, the light shading portion 51 can block the light emitted from the display element 33 toward the outside, so that the light from the display element 33 is concentrated and transmitted to the outside through the light guide portion 53. Of course, the light guide portion 53 can also be other structural forms such as a light guide column, and this application is not limited to this.

[0075] The number of light-guiding parts 53 can correspond to the number of light-transmitting parts 133a, that is, the number of light-guiding parts 53 can also be multiple, and one light-guiding part 53 is set corresponding to one light-transmitting part 133a, so that the light of a group of lamp bead modules 331 is transmitted toward the light-transmitting cover 131 corresponding to one light-transmitting part 133a after passing through one light-guiding part 53.

[0076] Furthermore, in one structural form, the display element 33 can be placed within the light guide groove 53a, so that as much light as possible from the display element 33 is transmitted outward through the light guide groove 53a. Furthermore, based on the placement of the display element 33 in the light guide groove 53a, the present application also allows the display element 33 to be positioned toward the opening of the light-transmitting housing 13 without protruding from the light guide groove 53a. Furthermore, the thickness of the display element 33 can be less than or equal to the depth of the light guide groove 53a. This prevents the light emitted by the display element 33 from being dispersed outward and unable to be effectively transmitted to the light-transmitting portion 133a when it protrudes from the opening.

[0077] In order to avoid the side walls of the light guide groove 53a from excessively blocking the light emitted from the outer wall of the lamp bead 3311, the outer wall of the display element 33 of the present application can have a gap with the side walls of the light guide groove 53a. When the side walls of the light guide groove 53a are in contact with the outer wall of the lamp bead 3311, the light emitted from the outer wall of the lamp bead 3311 will be blocked, resulting in uneven brightness of the light emitted by the lamp bead 3311. Therefore, when there is a gap, the side walls of the light guide groove 53a will not excessively block the light emitted from the outer wall of the lamp bead 3311, and the brightness of the light finally transmitted to the transparent shell 13 will be more uniform, further improving the display effect.

[0078] To further enhance the display effect, in one embodiment, the brush handle 100 of the present application further includes a light-distributing member 70, which is disposed on the inner side of the inner shell 133 to uniformly transmit light emitted by the display element 33 to the light-transmitting portion 133a. This configuration allows the light to be evenly distributed by the light-distributing member 70 before being transmitted outwardly to the light-transmitting shell 13, thereby evenly distributing the light emitted by the display element 33, further uniformizing the brightness of the light, avoiding bright spots, and improving the display effect.

[0079] Furthermore, the light-distributing member 70 includes a light-distributing body 71 and an insertion portion 73. The light-distributing body 71 is arranged on the inner side of the inner shell 133. The insertion portion 73 is connected to the surface of the light-distributing body 71 facing the inner shell 133 and is inserted into the light-transmitting portion 133a. In actual use, the light emitted by the display member 33 can pass through the light-distributing body 71, the insertion portion 73 and the inner shell 133 in sequence and then propagate outward to the light-transmitting cover 131. When the insertion portion 73 is inserted into the light-transmitting portion 133a, it is convenient for the staff to assemble the light-distributing member 70 and the inner shell 133, and the connection between the two will be more secure. Among them, the number of insertion portions 73 can correspond to the number of light-transmitting portions 133a, that is, the number of insertion portions 73 can also be multiple, and one insertion portion 73 is correspondingly inserted into one light-transmitting portion 133a.

[0080] In one embodiment, the spacing between two adjacent lamp beads 3311 in each lamp bead module 331 is 5 mm or less along the circumference of the circuit board 37. This arrangement ensures uniform light distribution between two adjacent lamp beads 3311, preventing excessive spacing between adjacent lamp beads 3311 from dimming the light in the space between them. This ensures uniform light brightness and further enhances the display effect. Specifically, the spacing between two adjacent lamp beads 3311 in each lamp bead module 331 can be set to 1 mm, 2 mm, 3 mm, 4 mm, or 5 mm, etc., without limitation.

[0081] In order to avoid light crosstalk between two adjacent light-transmitting portions 133a, for example, when the light transmitted from one light-transmitting portion 133a is white light and the light transmitted from the other light-transmitting portion is red light, it is necessary to avoid crosstalk between the white light and the red light, which would affect the display effect. Therefore, in the circumferential direction of the inner shell 133, the present application sets the spacing between two adjacent light-transmitting portions 133a to be greater than 1.2 mm. In this way, a larger spacing is provided between the two adjacent light-transmitting portions 133a, thereby avoiding light crosstalk between the two adjacent light-transmitting portions 133a and improving the display effect. Specifically, the spacing between two adjacent light-transmitting portions 133a can be set to 1.3 mm, 1.6 mm, 1.9 mm, or 2.2 mm, etc., and this application does not limit this.

[0082] In one structural form, please refer to Figure 4, the translucent cover 131 includes a cover body 1311 and a skirt 1313 arranged around the outside of the cover body 1311, the cover body 1311 is covered on the inner shell 133, the skirt 1313 is embedded in the second mounting groove 10b, and is fixedly connected to the main shell 11.

[0083] The wall surface of the main housing 11 with the second mounting groove 10b cooperates with the wall surface of the inner housing 133 with the second mounting groove 10b to clamp the skirt 1313. Thus, during assembly, the skirt 1313 can be embedded in the second mounting groove 10b and fixedly connected to the main housing 11 through threaded connection, bonding, or snap connection. The cooperation and clamping between the wall surface of the main housing 11 with the second mounting groove 10b and the wall surface of the inner housing 133 with the second mounting groove 10b can stably secure the skirt 1313 within the second mounting groove 10b, thereby improving assembly stability. There can be multiple skirts 1313, and the multiple skirts 1313 can be arranged at intervals along the circumference of the cover body 1311 to further improve the stability of the connection and fixation.

[0084] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0085] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A brush handle, wherein: The invention comprises a casing and a movement, wherein the casing comprises a main shell and a light-transmitting shell, wherein the main shell cooperates with the light-transmitting shell to define a mounting cavity, wherein the movement comprises a circuit board arranged in the mounting cavity and a display element connected to the circuit board, and wherein the light-transmitting shell is provided with a light-transmitting portion for light emitted by the display element to pass through; Wherein, in the radial direction of the housing, the display element and the light-transmitting shell are arranged opposite to each other, and the distance between the display element and the outer wall surface of the light-transmitting shell is greater than 2.5 mm.

2. The brush handle according to claim 1, wherein: In the radial direction of the housing, the distance between the display element and the inner wall surface of the light-transmitting housing is greater than 0.8 mm and less than 2 mm.

3. The brush handle according to claim 1 or 2, wherein: In the radial direction of the housing, the outer wall surface of the light-transmitting housing protrudes outward more than the outer wall surface of the main housing, and there is a height difference between the two, and the height difference is greater than or equal to 0.5 mm and less than or equal to 3 mm.

4. The brush handle according to claim 3, wherein: It also includes a button. The outer wall surface of the light-transmitting shell is recessed to form a first installation groove. The button is arranged in the first installation groove and has a height difference with the outer wall surface of the main shell in the radial direction of the shell.

5. The brush handle according to claim 3 or 4, wherein: The main housing comprises a main body section and a raised section arranged on the main body section, the main body section is connected to the light-transmitting shell, and the outer wall surface of the light-transmitting shell protrudes outward more than the outer wall surface of the main body section; Wherein, the raised section is arranged to surround the outer circumference of the light-transmitting shell.

6. The brush handle according to any one of claims 1 to 5, wherein: It also includes a light-distributing member, which is arranged on the inner side of the light-transmitting shell so that the light emitted by the display element is evenly transmitted to the light-transmitting portion.

7. The brush handle according to claim 6, wherein: The light-distributing member comprises a light-distributing body and an inserting portion. The light-distributing body is arranged on the inner side of the light-transmitting shell. The inserting portion is connected to the surface of the light-distributing body facing the light-transmitting shell and is inserted in the light-transmitting portion.

8. The brush handle according to any one of claims 1 to 7, wherein: The display component is a lamp bead module, and the number of the lamp bead modules is multiple groups. The multiple groups of lamp bead modules are arranged at intervals along the circumference of the board surface of the circuit board. The number of the light-transmitting parts is multiple, and one group of the lamp bead modules corresponds to one light-transmitting part.

9. The brush handle according to claim 8, wherein: Each of the lamp bead modules comprises at least two lamp beads, and the at least two lamp beads are arranged at intervals along the circumference of the board surface of the circuit board; Wherein, in the circumferential direction of the board surface of the circuit board, the distance between two adjacent lamp beads of each lamp bead module is less than or equal to 5 mm.

10. The brush handle according to claim 8 or 9, wherein: The plurality of light-transmitting portions are arranged in a ring shape, and the cross section of each light-transmitting portion is arc-shaped.

11. The brush handle according to any one of claims 8 to 10, wherein: In the circumferential direction of the light-transmitting shell, the distance between two adjacent light-transmitting portions is greater than 1.2 mm.

12. The brush handle according to any one of claims 1 to 11, wherein: The light-transmitting shell comprises an inner shell and a light-transmitting cover, the main shell is formed with an installation window, the inner shell covers the installation window and is connected to the main shell, and the light-transmitting cover is arranged on the outer side of the inner shell; Wherein, the inner shell is made of non-light-transmitting material, and the light-transmitting portion is arranged on the inner shell.

13. The brush handle according to claim 12, wherein: A second mounting groove is formed between the main shell and the inner shell. The light-transmitting cover is disposed on the inner shell and partially embedded in the second mounting groove and fixedly connected to the main shell.

14. The brush handle according to claim 13, wherein: The light-transmitting cover comprises a cover body and a skirt arranged around the outside of the cover body, the cover body is arranged on the inner shell, the skirt is embedded in the second mounting groove and fixedly connected to the main shell; Wherein, the wall surface of the main shell body having the second mounting groove cooperates with the wall surface of the inner shell body having the second mounting groove to clamp the skirt.

15. The brush handle according to any one of claims 12 to 14, wherein: At least a portion of the outer wall surface of the light-transmitting cover is formed as a frosted surface or a polished surface.

16. The brush handle according to any one of claims 1 to 15, wherein: It also includes a light shielding member, which is arranged in the installation cavity and includes a light shielding portion and a light guiding portion arranged on the light shielding portion; In the radial direction of the housing, the light guiding portion is arranged opposite to the display element and is arranged to guide the light emitted from the display element toward the transparent housing, and the light shielding portion is arranged around the outside of the display element and is arranged to shield the light emitted from the display element toward its outside.

17. The brush handle of claim 16, wherein: The light guiding portion is a light guiding groove formed on the light shielding portion, wherein the display element is placed in the light guiding groove.

18. The brush handle of claim 17, wherein: The display element does not protrude from the light guide groove and is disposed toward the opening of the light-transmitting shell; and / or, the thickness of the display element is less than or equal to the depth of the light guide groove; And / or, there is a gap between the outer side wall of the display element and the groove side wall of the light guide groove.

19. An electric toothbrush, comprising a brush handle and a brush head mounted on the brush handle, wherein: The brush handle is the brush handle as described in any one of claims 1 to 18, and the brush head is drivingly connected to the movement.

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