CN117598810A

CN117598810A - Handle shell of electric toothbrush, electric toothbrush and handle shell forming process thereof

Info

Publication number: CN117598810A
Application number: CN202310265274.2A
Authority: CN
Inventors: 廖婉妤; 丁科比; 刘仕华; 黄振东; 郑小波
Original assignee: Guangzhou Stars Pulse Co Ltd
Current assignee: Guangzhou Stars Pulse Co Ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2024-02-27

Abstract

The embodiment of the application discloses a handle shell of an electric toothbrush, the electric toothbrush and a handle shell forming process, wherein the electric toothbrush comprises a luminous piece arranged in the handle shell, the handle shell comprises a shell, a display shell and keys, a containing cavity for containing the luminous piece is formed in the shell, and an installation groove communicated with the containing cavity is formed on the outer surface of the shell; the display shell is positioned in the mounting groove and is provided with a display area for transmitting light rays emitted by the light emitting element; because the keys are arranged on the display shell and the display shell is connected with the shell, compared with the case that the display shell is connected with the keys respectively, the assembly procedure of the handle shell can be reduced, so that the assembly cost of the handle shell is reduced, the overall cost of the electric toothbrush is reduced, and the overall assembly efficiency of the electric toothbrush can be improved.

Description

Handle shell of electric toothbrush, electric toothbrush and handle shell forming process thereof

Technical Field

The application relates to the technical field of oral cleaning, in particular to a handle shell of an electric toothbrush, the electric toothbrush and a handle shell molding process.

Background

In the related technical field, part of electric toothbrushes are provided with components with display functions and keys, the components with display functions and the keys are often arranged independently, and the components and the keys are respectively connected with a shell of the electric toothbrush, so that the working procedures of the electric toothbrush in the assembly process are complex, and the input cost is high.

Disclosure of Invention

The embodiment of the application provides a handle shell of an electric toothbrush, the electric toothbrush and a handle shell forming process thereof, aims at arranging keys on a display shell and enabling the display shell to be connected with a machine shell, so that the assembly procedure of the handle shell can be reduced, the overall assembly cost of the electric toothbrush is reduced, and the overall assembly efficiency of the electric toothbrush is improved.

The embodiment of the application provides a handle shell of an electric toothbrush, the electric toothbrush comprises a luminous piece arranged in the handle shell, the handle shell comprises a shell, a display shell and keys, and the shell is provided with a mounting groove; the shell is internally provided with a containing cavity for containing the luminous element, and the outer surface of the shell is provided with a mounting groove communicated with the containing cavity; the display shell is positioned in the mounting groove and is provided with a display area for transmitting light rays emitted by the light emitting element; the keys are arranged on the display shell and are arranged at intervals or adjacent to the display area.

In some embodiments, the keys are integrally formed on the display housing; and/or the display shell is integrally formed with the housing to eliminate gaps between the outer surface of the display shell and the outer surface of the housing.

In some embodiments, the display shell is provided with a key hole penetrating through the display shell, the key comprises a soft rubber part, the soft rubber part is arranged in the key hole and is integrally formed with the hole wall of the key hole, and the soft rubber part is exposed out of the display shell so as to be suitable for being pressed.

In some embodiments, the key further includes an inner extension portion connected to one end of the flexible glue portion penetrating into the casing through the key hole, the inner extension portion extends from the flexible glue portion to a direction away from the key hole along an inner wall of the display casing, and the inner extension portion is integrally formed with the inner wall of the display casing.

In some embodiments, the inner extension portion extends from the flexible glue portion to the inner wall of the casing through the inner wall of the display casing, and the inner extension portion is integrally formed with the inner wall of the casing.

In some embodiments, the flexible glue portion is integrally formed with the inner extension portion; and/or the inner extension part is arranged on the periphery side of the soft rubber part in a surrounding way.

In some of these embodiments, the display housing includes an outer housing portion and an inner housing portion, the outer housing portion being mounted within the mounting slot and having a display area; the inner shell part is connected with the outer shell part and extends from the outer shell part along the inner part of the shell in a direction away from the mounting groove; wherein, the shell part and the groove wall of the mounting groove are integrally formed, and/or the inner shell part and the inner wall of the shell are integrally formed.

In some embodiments, the light emitting member includes a display screen, the display screen has a light emitting area, the casing has a light hole, the light hole is a through hole formed at a bottom of the mounting groove, the light hole corresponds to the display area, the inner wall surface of the casing portion is connected with a connecting portion, the connecting portion is connected with a wall of the light hole, the inner casing portion is connected to a peripheral side of the connecting portion passing through the light hole, and the casing portion, the connecting portion, the inner casing portion and the casing are formed in a uniform body.

In some embodiments, the display shell comprises a light-transmitting substrate, a light-transmitting appearance layer, an intermediate layer and a pattern layer, wherein the light-transmitting substrate has light transmittance; the light-transmitting appearance layer has light transmission; the intermediate layer is arranged between the light-transmitting substrate and the light-transmitting appearance layer, a shading area is formed in the area of the intermediate layer printed with the non-light-transmitting coating, and a display area is formed in the area of the intermediate layer not printed with the non-light-transmitting coating; the pattern layer is arranged on the shading area and is positioned between the shading area and the light-transmitting substrate, and/or is arranged in an area corresponding to the display area and between the light-transmitting substrate and the light-transmitting appearance layer, and preset patterns or preset characters are formed; the light emitted by the light emitting piece can sequentially pass through the light-transmitting substrate and the light-transmitting appearance layer to be emitted out of the electric toothbrush, and the pattern layer can also be transmitted out through the light-transmitting appearance layer.

In some embodiments, the preset pattern of the pattern layer includes a circular pattern surrounding the periphery of the display area, and the preset text includes product identification text; and/or the display shell further comprises an optical film layer, wherein the optical film layer is formed on the pattern layer, the light-transmitting appearance layer and/or the intermediate layer, and the optical film layer is provided with a three-dimensional texture pattern.

In some embodiments, the light emitting member includes a display screen, the display screen has a light emitting area, the housing has a light hole, the light hole is a through hole formed at the bottom of the mounting groove, and the light of the light emitting area illuminates the display area through the light hole.

In some embodiments, the number of the light holes is multiple, the light holes are sequentially arranged at intervals along the length direction of the handle shell, and the light emitting areas of the display screen are also multiple and correspond to the light holes one by one in position.

In some embodiments, the light emitting element comprises a light bulb, the handle shell further comprises a bearing element and a plurality of light guide strips, and the bearing element is provided with a plurality of light guide grooves which are arranged at intervals; the light guide strips and the bearing parts are integrally formed and are arranged in the light guide grooves in one-to-one correspondence, and light emitted by the lamp beads can sequentially pass through the light guide strips and the mounting grooves and illuminate the display area.

In some embodiments, the number of the lamp beads is multiple, the light guide strips are sequentially arranged at intervals along the circumferential direction of the handle, and the light guide strips are arranged in one-to-one correspondence with the lamp beads.

In some embodiments, the housing has a connection end for connection with the brush head and a free end remote from the connection end, the display housing is disposed closer to the connection end than the free end, and the display area is disposed between the connection end of the housing and the flexible glue portion.

In some of these embodiments, the outer surface of the key smoothly transitions with the outer surface of the display housing; and/or the outer surface of the display shell is in smooth transition with the outer surface of the shell.

In some embodiments, the outline of the display area and the outline of the soft rubber portion are circular or elliptical; and/or the area of the display area on the surface of the display shell is larger than the area of the soft rubber part on the surface of the display shell.

The embodiment of the application also provides an electric toothbrush which comprises a handle shell of the electric toothbrush, a movement and a luminous piece, wherein the movement is arranged in the shell and comprises a mounting bracket; the light emitting part is arranged on the mounting bracket, and light rays emitted by the light emitting part can be emitted from the display area.

In some embodiments, the lighting element includes a light bead, the light bead is mounted to the mounting bracket, or the lighting element includes a display screen mounted to the mounting bracket having a light emitting area positionally corresponding to the display area.

The embodiment of the application also provides a handle shell molding process of the electric toothbrush, which is suitable for manufacturing the handle shell and comprises the following steps of:

forming a display shell through an injection molding process;

and placing the display shell in the die cavity and forming the shell so as to integrally form the display shell and the shell.

In some of these embodiments, after the step of placing the display housing in the mold cavity and molding the housing such that the display housing is integrally molded with the housing, the handle housing molding process further comprises:

Placing an integrated piece formed by the shell and the display shell in a mold cavity, and forming a key on the display shell so as to enable the key and the display shell to be integrally formed; or alternatively

Before the step of placing the display shell in the mold cavity and forming the shell so that the display shell and the shell are integrally formed, the handle shell forming process further comprises the following steps:

and placing the display shell into a mold cavity, and forming keys on the display shell so as to integrally form the keys and the display shell.

In some of these embodiments, the step of forming the display shell by an injection molding process includes:

providing a light-transmitting substrate;

forming a pattern layer on the surface of the light-transmitting substrate through an electroplating and deplating process;

forming an intermediate layer on the pattern layer and/or the light-transmitting substrate through a printing process;

cutting out semi-finished products of a plurality of display shells through a numerical control machine tool, wherein each semi-finished product comprises a pattern layer and an intermediate layer, a light shielding area is formed in the area of the intermediate layer printed with the non-light-transmitting coating in each semi-finished product, and a display area is formed in the area of the intermediate layer not printed with the non-light-transmitting coating;

and placing the semi-finished product into a mold cavity to form a light-transmitting substrate on the intermediate layer, thereby obtaining the display shell.

In some of these embodiments, prior to the step of forming the intermediate layer on the patterned layer and/or the light transmissive substrate by a printing process, the handle shell molding process further comprises:

Performing optical coating on the pattern layer to obtain an optical film layer, and laminating a texture pattern on the optical film layer; or alternatively

The step of cutting out the semi-finished products of the display shells through the numerical control machine tool comprises the following steps:

after the numerical control machine tool is aligned through the alignment patterns, a plurality of semi-finished products of the display shells are cut, wherein the middle layer comprises the alignment patterns.

placing an integrated piece formed by a shell and a display shell in a mold cavity, and forming a bearing piece on the inner wall of the shell to enable the bearing piece and the display shell to be integrally formed and enable the bearing piece to be provided with a plurality of light guide grooves;

placing an integrated part formed by the shell, the display shell and the bearing part in a die cavity, and forming a light guide strip in the light guide groove to integrally form the light guide strip and the inner shell, wherein the light emitting part comprises a lamp bead; or,

firstly, forming a light guide strip;

placing an integrated part formed by the shell and the display shell and the light guide strip in a mold cavity, integrally forming a bearing part outside the light guide strip, and integrally forming the bearing part and the display shell and/or the shell, wherein the light emitting part comprises a lamp bead; or alternatively;

The step of placing the housing in the mold cavity and forming the display housing such that the display housing is integrally formed with the housing and such that the display housing has a display area comprises:

firstly, forming an integrated light guide strip and a bearing piece;

and then the integrated part formed by the light guide strip and the bearing part and the integrated part formed by the shell and the display shell are placed into a die cavity, and the bearing part and the display shell and/or the shell are integrally formed, wherein the luminous part comprises lamp beads.

Based on the handle shell, the key is arranged on the display shell, the display shell is connected with the shell, and compared with the connection of the display shell and the key in the shell, the handle shell can be reduced in the assembly process, so that the assembly cost of the handle shell is reduced, the overall cost of the electric toothbrush is reduced, and the overall assembly efficiency of the electric toothbrush can be improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an electric toothbrush in one embodiment of the present application;

FIG. 2 is a schematic view of a partial cross-sectional structure of an electric toothbrush in one embodiment of the present application;

FIG. 3 is a partially exploded view of an electric toothbrush according to one embodiment of the present application;

FIG. 4 is a schematic view of a partial cross-sectional structure of an electric toothbrush according to yet another embodiment of the present application;

FIG. 5 is a partially exploded view of an electric toothbrush according to yet another embodiment of the present application;

FIG. 6 is a schematic view showing an exploded structure of a case in one embodiment of the present application;

FIG. 7 is a schematic view showing the structure of a shell in one embodiment of the present application;

FIG. 8 is a schematic flow chart of a handle shell forming process according to an embodiment of the present application;

FIG. 9 is a schematic flow chart of a handle shell forming process according to another embodiment of the present application;

FIG. 10 is a schematic flow chart of a handle shell forming process according to another embodiment of the present application;

FIG. 11 is a schematic flow chart of a handle shell forming process according to yet another embodiment of the present application;

FIG. 12 is a schematic flow chart of a handle shell forming process according to yet another embodiment of the present application;

FIG. 13 is a schematic flow chart of a handle shell forming process according to yet another embodiment of the present application;

FIG. 14 is a schematic flow chart of a handle shell forming process according to yet another embodiment of the present application;

FIG. 15 is a schematic flow chart of a handle shell forming process according to yet another embodiment of the present application;

fig. 16 is a schematic flow chart of a handle shell forming process according to still another embodiment of the present application.

Reference numerals illustrate: 1. an electric toothbrush; 11. a handle housing; 111. a housing; 111A, mounting slots; 111B, light holes; 111C, a connection end; 111D, free end; 111E, receiving cavity; 112. a display case; 112A, a display area; 112B, key holes; 112C, clipping region, 112D, retention region; 1121. a housing portion; 11211. a light-transmitting substrate; 11212. a light-transmitting appearance layer; 11213. an intermediate layer; 11213A, light shielding region; 11214. a pattern layer; 11214A, alignment pattern; 11215. an optical film layer; 1122. an inner shell portion; 1123. a connection part; 113. a key; 1131. a soft rubber part; 1132. an inner extension; 12. a movement; 121. a mounting bracket; 122. a motor; 123. a battery; 124. a circuit board; 125. a key switch; 13. a brush head; 14. a light emitting member; 141. a display screen; 141A, light emitting region; 142. a lamp bead; 15. a carrier; 15A, light guide grooves; 16. a light guide bar.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the present application.

Referring to fig. 1 and 2, an embodiment of the present application provides an electric toothbrush 1 for cleaning a user's mouth. The electric toothbrush 1 comprises a handle housing 11, a movement 12 and a brush head 13.

The handle housing 11 is adapted to be held by a user and may protect components within the handle housing 11. Illustratively, the handle housing 11 may be plastic to reduce the mass of the electric toothbrush 1, thereby facilitating the use of the electric toothbrush 1 by a user. Illustratively, the handle housing 11 may be integrally formed by an injection molding process, so that the handle housing 11 has high structural strength, thereby providing reliable protection for the movement 12.

A movement 12 is provided in the handle housing 11, the movement 12 being a main member for causing the electric toothbrush 1 to vibrate and realizing a brushing function. Illustratively, cartridge 12 includes a mounting bracket 121, a motor 122, and a battery 123.

The mounting bracket 121 is used to mount the motor 122 and the battery 123 so that the movement 12 is formed as a single body, thereby facilitating the mounting of the movement 12 into the casing 111. Illustratively, the mounting bracket 121 may be a plastic material to reduce the weight of the mounting bracket 121, thereby reducing the weight of the electric toothbrush 1 as a whole, so as to facilitate the use of the electric toothbrush 1 by a user. For example, the mounting bracket 121 may be integrally formed through an injection molding process, so that the mounting bracket 121 has high structural strength, so that the mounting bracket 121 can stably support the motor 122 and the battery 123, and further improve the overall structural stability of the movement 12.

The motor 122 has an output shaft that passes out of the handle housing 11 to connect with the brush head 13. The battery 123 is electrically connected with the motor 122, so that the battery 123 can supply power to the motor 122, and when a user uses the electric toothbrush 1 to clean the oral cavity, the motor 122 can drive the brush head 13 to move, so that the brush head 13 vibrates in the oral cavity of the user, and the oral cavity is cleaned.

Referring to fig. 1 and 2, in some embodiments, the electric toothbrush 1 includes a light emitting element 14 disposed in a handle housing 11, the light emitting element 14 is electrically connected to a battery 123, so that the battery 123 can supply power to the light emitting element 14, so that the light emitting element 14 can emit light, the light emitting element 14 can be only a light source for backlight, or can be a display device capable of displaying a pattern, which is not limited in this embodiment, and the light emitting element 14 can be electrically connected to a controller of the electric toothbrush 1 to work under the control of the controller.

Referring to fig. 1 and 2, in some embodiments, the handle housing 11 includes a casing 111, a display housing 112, and keys 113.

The housing 111 is a main part of the handle case 11 held by a user, and the housing 111 is for protecting the internal parts such as the movement 12, the housing 111 has a housing chamber 111E for housing the light emitting element 14, and the outer surface of the housing 111 is formed with a mounting groove 111A in communication with the mounting groove 111A for mounting the display case 112.

The display housing 112 is a housing portion of the handle housing 11 having a display function or assisting in realizing the display function. The content displayed by the display housing 112 or the content displayed by other components of the electric toothbrush 1 (e.g., the light emitting member 14) through the display housing 112 may not be limited, and the display housing 112 may display at least one of information of a current operation mode, a brushing area, a brushing time period, a pressing force, etc. of the electric toothbrush 1, for example.

The display shell 112 is mounted in the mounting groove 111A, the display shell 112 has a light-transmitting display area 112A, and the light emitted by the light emitting element 14 is emitted from the display area 112A, so that the display area 112A is highlighted compared with other areas of the display shell 112, thereby facilitating the user to obtain the display content through the highlighted display area 112A. Illustratively, the display area 112A may be a transparent shell portion of the display housing 112 to facilitate light emitted by the light emitting member 14 exiting the display area 112A. The display area 112A may be a through hole penetrating the display shell 112, and a light-transmitting plate is integrally formed in the through hole, so that the light emitted by the light-emitting element 14 can be conveniently emitted from the display area 112A, and water and dirt can be prevented from entering the cavity 111E through the through hole by using the light-transmitting plate, so that reliable protection can be provided for the movement 12, so as to ensure that the electric toothbrush 1 has a long service life.

The key 113 may be pressed by a user so that the user may control the electric toothbrush 1 through the key 113, and a specific type of the key 113 may not be limited, and the key 113 may be a switch key for controlling the electric toothbrush 1 to be turned on or off by way of example; the button 113 may also be a mode switching button for switching the operating mode of the electric toothbrush 1, wherein different operating modes may cause the brush head 13 to have different vibration frequencies and/or operating frequencies.

In some embodiments, the keys 113 are disposed on the display housing 112 and spaced apart from the display area 112A, so that the probability that the user's finger may obstruct the display area 112A when operating the keys 113 can be reduced.

In other embodiments, the keys 113 may also be disposed adjacent to the display area 112A, so that the display area 112A is adjacent to the keys 113, which can improve the surface utilization of the display housing 112, and the display housing 112 with the same area may have a larger display area 112A to facilitate viewing of the display content of the display area 112A.

In the embodiment of the application, since the key 113 is disposed on the display shell 112 and the display shell 112 is connected with the casing 111, compared with the case that the display shell 112 and the key 113 are respectively connected with the casing 111, the assembly process of the handle shell 11 can be reduced, so as to reduce the assembly cost of the handle shell 11, thereby reducing the overall cost of the electric toothbrush 1 and improving the overall assembly efficiency of the electric toothbrush 1.

Referring to fig. 1 and 2, in some embodiments, the keys 113 are integrally formed on the display housing 112 to eliminate gaps between the keys 113 and the display housing 112, so that dirt is not accumulated between the outer surface of the display housing 112 and the surface of the keys 113, and bacteria are not grown, thereby improving the sanitation of the electric toothbrush 1. The liquid will not enter the handle shell 11 from the position between the display shell 112 and the keys 113, so that the short circuit of the electric devices in the handle shell 11 can be effectively avoided. In addition, since the display shell 112 and the keys 113 are integrally formed through an injection molding process, the connection strength between the display shell 112 and the keys 113 can be improved, and the probability that the keys 113 are separated from the display shell 112 due to multiple pressing is reduced. In addition, compared with the case where the display housing 112 and the keys 113 are assembled after being manufactured separately, the present embodiment also omits the assembling step, which is beneficial to improving the assembling efficiency of the electric toothbrush 1.

The injection molding process between the display housing 112 and the keys 113 may be further a two-shot molding process or a two-shot molding process (also referred to as a beer over process or an encapsulation process), for example.

Referring to fig. 1 and 2, in some embodiments, the display shell 112 and the casing 111 may be integrally formed by injection molding, so that a gap between an outer surface of the display shell 112 and an outer surface of the casing 111 may be eliminated, so that not only is the integrity of the handle shell 11 stronger, but more importantly, as a gap between the outer surface of the display shell 112 and the outer surface of the casing 111 is eliminated, dirt is not accumulated between the outer surface of the display shell 112 and the casing 111, and bacteria are not bred, so that the sanitation degree of the electric toothbrush 1 may be improved, and liquid may not enter the interior of the handle shell 11 from the outer surface of the display shell 112 and the casing 111, and short circuit of electrical devices in the handle shell 11 may be effectively avoided. In addition, since the display shell 112 and the casing 111 are integrally formed through an injection molding process, the connection strength between the display shell 112 and the casing 111 can be improved, and compared with the case that the display shell 112 and the casing 111 are assembled after being manufactured respectively, the assembly step is omitted in the embodiment, which is beneficial to improving the assembly efficiency of the electric toothbrush 1.

The injection molding process between the display case 112 and the cabinet 111 may be further a two-shot molding process or a two-shot molding process (also referred to as a beer over process or an encapsulation process), for example.

Referring to fig. 1 and 2, in still other embodiments, the key 113 is integrally formed on the display housing 112, and the display housing 112 and the casing 111 may be integrally formed by injection molding, so as to eliminate a gap between the key 113 and the display housing 112 and a gap between an outer surface of the display housing 112 and an outer surface of the casing 111, prevent dirt from being accumulated in the gap, and prevent bacteria from growing, so that the hygiene degree of the electric toothbrush 1 may be improved.

Referring to fig. 1-3, in some embodiments, the display housing 112 has a key hole 112B penetrating through the display housing 112, the key 113 includes a flexible glue portion 1131, the flexible glue portion 1131 is disposed in the key hole 112B and is integrally formed with a hole wall of the key hole 112B, and a portion of the flexible glue portion 1131 is exposed out of the display housing 112 to be suitable for being pressed by a finger of a user. The movement 12 may further include a circuit board 124 disposed on the mounting bracket 121, where a key switch 125 is disposed on the circuit board 124, and the key switch 125 is disposed corresponding to the key hole 112B, and when the user presses the key 113, the soft rubber portion 1131 is capable of deforming into the key hole 112B to apply a force to the key switch 125, so as to control the electric toothbrush 1. And since the soft rubber portion 1131 is integrally formed with the wall of the key hole 112B, a gap between the key 113 and the display case 112 can be eliminated. For example, the soft rubber portion 1131 may be made of soft rubber, such as silica gel, so that the soft rubber portion 1131 can deform to trigger the key switch 125, and the soft rubber portion 125 has a longer service life, and also has a more comfortable pressing feel when pressed by a user.

Referring to fig. 1 to 3, in some embodiments, the key 113 further includes an inner extension 1132, the inner extension 1132 is connected to one end of the flexible glue portion 1131 penetrating into the casing 111 through the key hole 112B, and the inner extension 1132 extends from the flexible glue portion 1131 to a direction away from the key hole 112B along the inner wall of the display casing 112, so as to increase a contact area between the key 113 and the display casing 112, thereby improving connection stability between the key 113 and the display casing 112. Further, the inner extension 1132 is integrally formed with the inner wall of the display housing 112, so that the connection stability between the key 113 and the display housing 112 can be further improved, and the probability that the key 113 is separated from the display housing 112 due to multiple pressing is reduced. And since the inner extension portion 1132 extends along the inner wall of the display housing 112 from the soft rubber portion 1131 in a direction away from the button hole 112B to restrict the movement of the button 113 from the inside of the handle housing 11 to the outside of the handle housing 11, the button 113 is prevented from being separated from the handle housing 11 outwards.

For example, the inner extension 1132 may be made of the same material as the soft rubber portion 1131, for example, the inner extension 1132 may also be made of soft rubber, so that the inner extension 1132 may be molded together while the soft rubber portion 1131 is molded, that is, the soft rubber portion 1131 and the inner extension 1132 are integrally molded, so that not only the connection stability between the soft rubber portion 1131 and the inner extension 1132 may be increased, but also the molding process may be reduced, the number of injection molds used may be reduced, and the injection molding cost may be further reduced.

Referring to fig. 1 to 5, in some embodiments, the inner extension 1132 extends from the flexible glue portion 1131 to the inner wall of the casing 111 through the inner wall of the display casing 112, and the inner extension 1132 and the inner wall of the casing 111 are integrally formed by injection molding, so that the contact area between the inner extension 1132 and the inner surface of the handle casing 11 can be further increased, and the connection stability between the key 113 and the handle casing 11 can be further increased; and the inner extension 1132 extends from the flexible glue portion 1131 to the inner wall of the casing 111 through the inner wall of the display casing 112, so as to increase the contact area between the inner extension 1132 and the inner wall of the display casing 112, thereby further improving the connection stability between the display casing 112 and the casing 111.

In addition, in combination with the embodiment in which the display housing 112 and the casing 111 are integrally formed, the key 113 is integrally formed with the display housing 112 through the soft adhesive portion 1131 and a part of the inner edge portion 1132, and the key 113 is integrally formed with the casing 111 through the inner edge portion 1132 of the rest, that is, the casing 111, the display housing 112 and the key 113 are connected by an integral forming process, and a structure similar to a triangle connection is formed, so that the connection stability among the casing 111, the display housing 112 and the key 113 can be improved.

Referring to fig. 1 to 5, in still other embodiments, the inner extension portion 1132 is disposed around the periphery of the flexible glue portion 1131, so that the periphery of the flexible glue portion 1131 can contact with the inner wall of the handle housing 11, and thus the flexible glue portion 1131 is uniformly stressed, so as to improve the connection stability between the key 113 and the display housing 112. And in the direction from the inside of the display shell 12 to the outside, the circle of inner extension 1132 is connected with the inner wall of the display shell 12, so that the keys 112 can be prevented from falling off from the display shell 112 from the inside to the outside. It can be appreciated that the embodiment in which the inner extension portion 1132 is disposed around the periphery of the flexible glue portion 1131 may be combined with the embodiment in which the inner extension portion 1132 and the flexible glue portion 1131 are integrally molded, that is, the inner edge portion 1132 is integrally formed around the periphery of the flexible glue portion 1131, and of course, the inner extension portion 1132 and the flexible glue portion 1131 may be formed separately.

Referring to fig. 1-5, in some embodiments, the display housing 112 includes an outer housing portion 1121 and an inner housing portion 1122, the outer housing portion 1121 being mounted in the mounting slot 111A and having a display area 112A; the inner case 1122 is connected to the outer case 1121 and extends from the outer case 1121 in a direction away from the mounting groove 111A along the inner wall of the housing 111 to increase the contact area between the display case 112 and the inner wall of the housing 111, thereby improving the connection stability between the display case 112 and the housing 111, and preventing the display case 112 from being easily separated from the housing 111.

Further, the housing portion 1121 may be integrally formed with the groove wall of the mounting groove 111A by an injection molding process, so that not only the connection tightness and connection stability of the housing portion 1121 and the casing 111 are improved, but also a gap between the housing portion 1121 and the casing 111 can be eliminated due to the integral formation of the housing portion 1121 and the casing 111, and contamination or even bacteria growth at the connection position between the housing portion 1121 and the casing 111 can be avoided.

Referring to fig. 1 to 5, further, the inner shell portion 1122 and the inner wall of the housing 111 may be integrally formed by an injection molding process, so that the inner shell portion 1122 and the inner wall of the housing 111 may be tightly connected to improve the connection stability between the display housing 112 and the housing 111, and if a crack occurs at the connection position between the outer shell portion 1121 and the housing 111, the inner shell portion 1122 and the inner wall of the housing 111 form a sealing connection due to the integral formation of the inner shell portion 1122 and the inner wall of the housing 111, so that external liquid is effectively prevented from entering the handle housing 11, and short circuit of electrical devices in the handle housing is avoided. It will be appreciated that, while the outer housing portion 1121 is integrally formed with the groove wall of the mounting groove 111A, the inner housing portion 1122 is integrally formed with the inner wall of the housing 111, so that the connection area between the display housing 112 and the housing 111 is increased, the connection stability between the display housing and the housing 111 is improved as a whole, and the probability that the display housing 112 is separated from the housing 111 is reduced.

Referring to fig. 1, 4 and 5, in some embodiments, the lighting member 14 includes a display screen 141, the display screen 141 has a lighting area 141A, and the controller of the electric toothbrush 1 can control the lighting area 141A of the display screen 141 to emit light for content display. Exemplary display 141 includes, but is not limited to, a liquid crystal display (Liquid Crystal Display, LCD) or an Organic Light-Emitting Diode Display (OLED). The casing 111 has a light hole 111B, the light hole 111B is a through hole formed at the bottom of the mounting groove 111A, and the light hole 111B corresponds to the display area 112A, so that the light emitted from the light emitting area 141A can be emitted through the light hole 111B and the display area 112A.

For example, the key 113 may be a mode switching key, when the user presses the key 113, the key 113 sends a first sending control signal to the controller to switch the current operation mode of the electric toothbrush 1, the controller sends a second control signal to the display screen 141, so that the corresponding light emitting area 141A on the display screen 141 displays information of the current operation mode, such as characters or patterns, and the light emitted by the light emitting area 141A passes through the light hole 111B and the display area 112A to be emitted out of the handle shell 11, so that the display area 112A corresponding to the light emitting area 141A that is displaying content is in a highlight state, thereby facilitating the user to observe the display content through the highlight display area 112A.

The inner wall surface of the outer shell portion 1121 is connected with a connecting portion 1123, the connecting portion 1123 is connected with the wall of the light hole 111B, the inner shell portion 1122 is connected to the outer periphery side of the connecting portion 1123 penetrating through the light hole 111B, and the outer shell portion 1121, the connecting portion 1123, the inner shell portion 1122 and the casing 111 can be integrally formed through an injection molding process, so that the connection stability of the outer shell portion 1121, the connecting portion 1123, the inner shell portion 1122 and the casing 111 is increased.

Referring to fig. 2-6, in some embodiments, the display shell 112 includes a transparent substrate 11211, a transparent appearance layer 11212, an intermediate layer 11213, and a pattern layer 11214, where the transparent substrate 11211 has light transmittance; the light-transmitting appearance layer 11212 has light transmittance; the intermediate layer 11213 is disposed between the light-transmissive substrate 11211 and the light-transmissive exterior layer 11212, the region of the intermediate layer 11213 printed with the light-impermeable coating forming the light-blocking region 11213a, and the region of the intermediate layer 11213 not printed with the light-impermeable coating forming the display region 112A; the pattern layer 11214 is disposed on the light shielding region 11213a and between the light shielding region 11213a and the transparent substrate 11211, and is formed with a predetermined pattern or a predetermined text; after the user presses the key 113, the controller controls the corresponding light emitting element 14 to emit light, and the light emitted by the light emitting element 14 can sequentially pass through the light-transmitting substrate 11211 and the light-transmitting appearance layer 11212 to be emitted out of the electric toothbrush 1, and illuminate the pattern layer 11214, so that the preset pattern or the preset text is highlighted, and the user can conveniently obtain the display content of the electric toothbrush 1 through highlighting the preset pattern or the preset text. Illustratively, the predetermined pattern of the pattern layer 11214 includes a circular ring-shaped pattern surrounding the periphery of the display area 112A to increase the aesthetic appearance of the electric toothbrush 1, and the predetermined text includes product identification text.

It will be appreciated that, in still other embodiments, the pattern layer 11214 may be disposed in an area corresponding to the display area 112A between the light-transmitting substrate 11211 and the light-transmitting appearance layer 11212, and formed with a preset pattern or preset text, which may also be illuminated after the corresponding light emitting member 14 is illuminated, so that the preset pattern or preset text is highlighted, so that the user may obtain the display content of the electric toothbrush 1 by highlighting the preset pattern or preset text.

Referring to fig. 2-6, in some embodiments, the display shell 112 further includes an optical film layer 11215, the optical film layer 11215 is formed on the pattern layer 11214 and the transparent appearance layer 11212, and the optical film layer 11215 has a three-dimensional texture pattern, so that the pattern layer 11214 is more three-dimensional, and the aesthetic property of the electric toothbrush 1 can be increased. It is to be appreciated that in still other embodiments, the optical film layer 11215 is formed over the pattern layer 11214 and the intermediate layer 11213. It will be appreciated that in other embodiments, the optical film layer 11215 is formed on the patterned layer 11214, the light transmissive appearance layer 11212, and the intermediate layer 11213, which may increase the aesthetic appearance of the electric toothbrush 1.

It can be understood that, in some embodiments, when the light emitting member 14 includes the display screen 141, the number of the light holes 111B is plural, and the plurality of light holes 111B are sequentially spaced along the length direction of the handle housing 11, and the light emitting areas 141A of the display screen 141 are also plural and correspond to the light holes 111B in position one by one. When the user presses the key 113, the controller controls the light emitting areas 141A corresponding to the display screen 141 to emit light to illuminate the corresponding light transmitting holes 111B, thereby highlighting the corresponding display areas 112A so that the user can acquire the display contents of the electric toothbrush 1 through the highlighted display areas 112A.

Referring to fig. 1, 2 and 3, in some embodiments, the light emitting member 14 further includes a light bead 142, the handle housing 11 further includes a carrier 15 and a plurality of light guide strips 16, and the carrier 15 has a plurality of light guide grooves 15A arranged at intervals; the light guide strips 16 and the bearing member 15 are integrally formed and are arranged in the light guide grooves 15A in a one-to-one correspondence manner, and the light emitted by the lamp beads 142 can sequentially pass through the light guide strips 16 and the mounting grooves 111A and illuminate the display area 112A, so that a user can conveniently obtain the display content of the electric toothbrush 1 through the display area 112A.

Specifically, the light emitting member 14 includes a plurality of light beads 142, the plurality of light beads 142 are disposed on the mounting bracket 121 and are disposed in one-to-one correspondence with the light guide strips 16, light emitted by the light beads 142 can enter the corresponding light guide strips 16, and the light is reflected and refracted in the light guide strips 16, so that the light guide strips 16 are lightened, and light of the light guide strips 16 is emitted out of the casing 111 through the display area 112A, so that the display area 112A is lightened, and a user can conveniently obtain display contents of the electric toothbrush 1 through the lightened display area 112A.

Since the light emitting area of the light guide bar 16 is larger than that of the spot light, the light emitted out of the casing 111 through the display area 112A is more, so that the user can obtain the display content of the electric toothbrush 1 conveniently. And because the light emitting area of the light guide strip 16 is larger, any position in the corresponding display area 112A can provide an instruction for the display content acquired by the user, so that the convenience for the user to acquire the display content of the electric toothbrush 1 is improved.

It is understood that the light beads 142 may be disposed on the circuit board 124, and the circuit board 124 can control the light beads 142 to be turned on or off according to a preset program. The light beads 142 may be, for example, LED lights.

Referring to fig. 1, in some embodiments, the casing 111 has a connection end 111C for connecting with the brush head 13 and a free end 111D far from the connection end 111C, and an output shaft of the motor 122 extends from the connection end 111C to the outside of the casing 111 and is connected with the brush head 13, so that when a user uses the electric toothbrush 1 to clean an oral cavity, the motor 122 can drive the brush head 13 to move to clean the oral cavity of the user. The display housing 112 is disposed closer to the connection end 111C than the free end 111D, and can prevent the display housing 112 from being shielded by the hand when the user holds the electric toothbrush 1, thereby facilitating the operation of the keys 113 and the observation of the display area 112A when the user holds the electric toothbrush 1. Further, the display area 112A is disposed between the connection end 111C of the casing 111 and the soft rubber portion 1131, so that the display area 112A is less likely to be blocked by the hand, so that the user can obtain the display content of the electric toothbrush 1 from the display area 112A.

Referring to fig. 1 to 5, in some embodiments, the outer surface of the key 113 and the outer surface of the display housing 112 are in smooth transition, so that a step between the outer surface of the key 113 and the outer surface of the display housing 112 can be avoided, and dirt is prevented from being trapped at a dead angle of the step, so that a reliable guarantee can be provided for the health of a user. And since the outer surface of the key 113 and the outer surface of the display case 112 are smoothly excessive, so that the user does not have a feeling when holding the handle case 11 and pressing the key 113, thereby facilitating the user to press the key 113 to control the electric toothbrush 1.

Referring to fig. 1-5, in still other embodiments, the outer surface of the display shell 112 and the outer surface of the casing 111 are smoothly transited, so that steps between the outer surface of the display shell 112 and the outer surface of the casing 111 can be avoided, and dirt can be prevented from being hidden in dead corners of the steps, so as to provide reliable guarantee for the health of users. And since the outer surface of the display case 112 and the outer surface of the housing 111 are smoothly excessively formed, there is no sense of cleavage between the display case 112 and the housing 111 when the user views the current operation mode of the electric toothbrush 1 through the display case 112, so that the user's visual perception is improved.

Referring to fig. 1-5, in other embodiments, the outer surface of the key 113 and the outer surface of the display shell 112 are in smooth transition, and the outer surface of the display shell 112 and the outer surface of the casing 111 are in smooth transition, so that the outer surface of the handle shell 11 is integrated, thereby improving the overall aesthetic property of the handle shell 11; and the step on the outer surface of the handle shell 11 can be avoided, so that dirt is prevented from being accumulated on the step, and reliable guarantee can be provided for personal health of users.

Referring to fig. 1-5, in some embodiments, the outer contour line of the display area 112A and the contour line of the flexible glue portion 1131 are circular or elliptical, so that the display area 112A and the flexible glue portion 1131 can have a larger area, which is more convenient for a user to observe the display area 112A and to press the flexible glue portion 1131 to control the electric toothbrush 1. Of course, in other embodiments, the outer contour line of the display area 112A and the contour line of the soft rubber portion 1131 may be triangular or rectangular.

Referring to fig. 1 to 5, in some embodiments, the area of the display area 112A on the surface of the display shell 112 is larger than the area of the flexible glue portion 1131 on the surface of the display shell 112, so that the area of the display area 112A is larger, and thus, when the user presses the flexible glue portion 1131, the user can more clearly observe the display area 112A, and further, the user can obtain the display content of the electric toothbrush 1 conveniently.

Referring to fig. 1 and 8, the embodiment of the present application further provides a process for forming a handle shell 11 of an electric toothbrush 1, which is suitable for manufacturing the handle shell 11, wherein the process for forming the handle shell 11 includes:

step S100, the display shell 112 is formed by an injection molding process.

In the embodiment of the present application, the raw material of the display shell 112 may be injected into the mold cavity, and the raw material of the display shell 112 may be filled into the mold cavity, and after waiting for the raw material to be cooled, the display shell 112 may be obtained through a demolding process.

In step S200, the display shell 112 is placed in the mold cavity and the housing 111 is formed, so that the display shell 112 and the housing 111 are integrally formed.

In the embodiment of the application, the display shell 112 is placed in the mold cavity, and the shell 111 raw material is injected into the mold cavity, so that the shell 111 is formed on the periphery of the display shell 112, so that the shell 111 and the display shell 112 are integrally formed, a gap between the display shell 112 and the shell 111 is eliminated, dirt is prevented from being hidden at the gap, and the outer surface of the handle shell 11 is convenient for a user to clean, so that reliable guarantee is provided for the health of the user. For example, the display housing 112 may be injection molded using a display housing 112 mold, and then the display housing 112 is placed in a housing 111 mold to integrally form the housing 111. For example, the display shell 112 and the casing 111 may share a set of mold and occupy different cavities in the mold, so that the display shell 112 and the casing 111 can be conveniently formed integrally through a two-color injection molding process. In addition, since the display shell 112 and the machine shell 111 share one set of die, compared with the two sets of die used for forming the display shell 112 and the machine shell 111 respectively, the design and manufacturing cost of the die can be reduced, so that the research and development cost is reduced; and after the display shell 112 is formed in the cavity of the display shell 112, the shell 111 can be directly formed in the cavity of the shell 111 adjacent to the cavity of the display shell 112 without transferring the display shell 112, so that the steps of transferring and secondarily clamping the display shell 112 are reduced, and the forming efficiency of the handle shell 11 can be improved.

Referring to fig. 1 and 9, in some embodiments, after step S200, the process of forming the handle shell 11 further includes:

in step S300, an integral part formed by the casing 111 and the display casing 112 is placed in the mold cavity, and the keys 113 are formed on the display casing 112, so that the keys 113 and the display casing 112 are integrally formed.

In this embodiment, the integrated part formed by the casing 111 and the display shell 112 is placed in the mold cavity, so that the soft rubber portion 1131 is formed in the key hole 112B of the display shell 112, and the inner extension portion 1132 is formed at one end of the soft rubber portion 1131 penetrating into the display shell 112, so that the inner extension portion 1132 extends along the inner wall of the display shell 112, and the inner extension portion 1132 and the inner wall of the display shell 112 are integrally formed, so that the contact area between the key 113 and the display shell 112 can be increased, and the connection stability between the key 113 and the display shell 112 is increased. The cavity of the key 113, the cavity of the display shell 112 and the cavity of the casing 111 are all part of the same mold, so that the key 113, the display shell 112 and the casing 111 can be molded in different cavities in one mold, the key 113, the display shell 112 and the casing 111 are integrally molded, the process steps are simplified, and the molding efficiency is improved.

In other embodiments, the inner extension 1132 may further extend from the flexible glue portion 1131 to the inner wall of the casing 111 through the inner wall of the display casing 112, and the inner extension 1132 is also integrally formed with the inner wall of the casing 111.

Referring to fig. 1 and 10, in still other embodiments, the process of forming the handle shell 11 further includes, before step S200:

step 400, the display shell 112 is placed into the mold cavity, and the keys 113 are formed on the display shell 112, so that the keys 113 and the display shell 112 are integrally formed.

In this embodiment, the display shell 112 is placed in the mold cavity, so that the soft rubber portion 1131 can be formed in the key hole 112B of the display shell 112, and the inner extension portion 1132 is formed at one end of the soft rubber portion 1131 penetrating into the display shell 112, so as to increase the contact area between the key 113 and the display shell 112, and thus the connection stability between the key 113 and the display shell 112 is increased.

Referring to fig. 1, 6, 7 and 11, in some embodiments, step 100 includes:

step S110, providing a transparent substrate 11211.

In the embodiment of the present application, the light-transmitting substrate 11211 may be formed in the mold cavity by an injection molding process.

In step S120, a pattern layer 11214 is formed on the surface of the transparent substrate 11211 by electroplating and deplating.

In the embodiment of the present application, a pre-set color layer is covered on one side surface of the transparent substrate 11211 by an electroplating process, and then the pre-set color layer is deplated, so that a portion of the pre-set color layer remains on one side surface of the transparent substrate 11211 to form a pattern layer 11214. For example, the color of the preset color layer may be gold, blue, red, etc., and in the embodiment of the present application, the color of the preset color layer is not specifically limited. By way of example, the pattern layer 11214 may include a pattern having a preset color and text having a preset color. By way of example, the pattern layer 11214 may include a ring having a preset color.

It is understood that in other embodiments, a pattern with a predetermined color may be formed on the surface of the transparent substrate 11211 through electroplating and deplating processes, and then a predetermined text may be formed on the surface through printing processes.

In step S130, an intermediate layer 11213 is formed on the pattern layer 11214 and/or the light-transmitting substrate 11211 by a printing process.

In this embodiment of the present application, an optical coating may be performed on the pattern layer 11214 to obtain an optical film layer 11215, and a 3D texture pattern is printed on the surface of the optical film layer 11215, so that the pattern layer 11214 has a 3D texture pattern, so that the pattern layer 11214 is more protruding, to improve the recognition of the electric toothbrush 1, and a non-transparent layer is printed on a local area on the optical film layer 11215 to form a light shielding area 11213a, and a display area 112A is formed in an area where the non-transparent layer is not printed, so as to form an intermediate layer 11213, so that light emitted by the light emitting element 14 can be emitted out of the handle shell 11 through the display area 112A, so that a user can obtain a current operation mode of the electric toothbrush 1 through the display area 112A. Illustratively, localized areas on the optical film 11215 may be formed into a non-light transmissive layer by an ink screen printing process.

It will be appreciated that an optical film may be formed on the light-transmitting substrate 11211 to form an optical film 11215, and a 3D texture pattern may be embossed on the surface of the optical film 11215, so that the non-pattern layer 11214 of the light-transmitting substrate 11211 has a 3D texture pattern, so that the display case 112 has a large area of the 3D texture pattern, to improve the aesthetic property of the electric toothbrush 1, and a non-light-transmitting pattern may be embossed on a partial area of the optical film 11215 to form a light-shielding area 11213a, and a display area 112A may be formed on an area where the non-light-transmitting pattern is not embossed, to form an intermediate layer 11213.

It will be appreciated that optical coating may be performed on the pattern layer 11214 and the transparent substrate 11211 to obtain an optical film layer 11215, and a 3D texture pattern is printed on the surface of the optical film layer 11215, so that the display shell 112 has a 3D texture pattern with a larger area, thereby improving the aesthetic property of the electric toothbrush 1, and a non-transparent pattern layer is printed on a local area on the optical film layer 11215 to form a light shielding area 11213a, and a display area 112A is formed on an area where the non-transparent pattern layer is not printed, thereby forming an intermediate layer 11213.

In step S140, a plurality of semi-finished products of the display shells 112 are cut by a numerically controlled machine tool, each semi-finished product includes a pattern layer 11214 and an intermediate layer 11213, the region of the intermediate layer 11213 in each semi-finished product printed with the non-light-transmitting coating forms a light shielding region 11213a, and the region of the intermediate layer 11213 not printed with the non-light-transmitting coating forms a display region 112A.

In the embodiment of the present application, after forming the intermediate layer 11213 on the pattern layer 11214 and/or the transparent substrate 11211 by a printing process, the semi-finished display shell 112 has a cutting area 112C and a retaining area 112D, and the numerical control machine cuts the cutting area 112C according to a preset track to form a semi-finished display shell 112. It is understood that, in order to facilitate the reference positioning of the numerical control machine, the alignment pattern 11214A may be formed in the cut region 112C when the pattern layer 11214 is formed on the surface of the light-transmitting substrate 11211 by electroplating and deplating processes. It is understood that the alignment pattern 11214A may also be formed in the cut region 112C by a printing process. Illustratively, the alignment pattern 11214A may be an anchor point.

In some embodiments, the semi-finished display shell 112 may have a cut key hole 112B after cutting and an uncut and light transmissive display area 112A. In still other embodiments, the semi-finished display shell 112 may have a cut key hole 112B and a cut display area 112A after cutting.

In step S150, the semi-finished product is placed in a mold cavity to form the transparent substrate 11211 on the intermediate layer 11213, so as to obtain the display shell 112.

In this embodiment, after the semi-finished display shell 112 is placed in the mold cavity, the transparent substrate 11211 may be formed on the intermediate layer 11213, and the transparent substrate 11211 may be the inner shell 1122 of the display shell 112, so that the display shell 112 may be obtained.

Referring to fig. 1, 6, 7 and 12, in some embodiments, the process of forming the handle shell 11 further includes, before step S130:

step S121, performing optical coating on the pattern layer 11214 to obtain an optical film layer 11215, and extruding a texture pattern on the optical film layer 11215.

In the embodiment of the application, the optical film layer 11215 is obtained by performing optical film coating on the pattern layer 11214, and the 3D texture pattern is printed on the surface of the optical film layer 11215, so that the pattern layer 11214 has the 3D texture pattern, and the pattern layer 11214 can be made to be more convex, so as to improve the identification of the electric toothbrush 1.

Referring to fig. 1, 6, 7 and 13, in some embodiments, step S140 includes:

in step S141, after the numerical control machine tool performs alignment through the alignment pattern 11214A, a plurality of semi-finished products of the display shells 112 are cut, wherein the intermediate layer 11213 includes the alignment pattern 11214A.

In the embodiment of the present application, in order to facilitate the reference positioning of the numerical control machine, when the pattern layer 11214 is formed on the surface of the light-transmitting substrate 11211 by electroplating and deplating processes, the alignment pattern 11214A may be formed in the cut region 112C. It is understood that the alignment pattern 11214A may also be formed in the cut region 112C by a printing process. Illustratively, the positioning pattern may be a positioning point. After the nc machine is aligned through the alignment pattern 11214A, the nc machine moves along a preset track to cut out a plurality of semi-finished products of the display shells 112. Illustratively, the semi-finished display shell 112 may have a cut key hole 112B after cutting and an uncut and light transmissive display area 112A. In still other embodiments, the semi-finished display shell 112 may have a cut key hole 112B and a cut display area 112A after cutting.

Referring to fig. 1, 2, 3 and 14, in some embodiments, after step S200, the process of forming the handle shell 11 further includes:

in step S500, the integrated part formed by the casing 111 and the display casing 112 is placed in the mold cavity, and the carrier 15 is formed on the inner wall of the casing 111, so that the carrier 15 and the display casing 112 are integrally formed, and the carrier 15 has a plurality of light guide grooves 15A.

In this embodiment, an integral part formed by the casing 111 and the display casing 112 may be placed in a mold cavity, so that the carrier 15 is formed on the inner wall of the casing 111 by a two-color injection molding process, and the carrier 15 and the display casing 112 are integrally formed, where the carrier 15 has a plurality of light guide grooves 15A.

In step S600, the integrated member formed by the casing 111, the display casing 112 and the carrier 15 is placed in the mold cavity, and the light guide strip 16 is molded in the light guide groove 15A, so that the light guide strip 16 and the inner casing 1122 are integrally molded, wherein the light emitting member 14 includes the light beads 142.

In this embodiment, the integrated member formed by the casing 111, the display casing 112 and the carrier 15 may be placed in the mold cavity, and the light guide strip 16 is molded in the light guide groove 15A, so that the light guide strip 16 and the casing 111 are integrally molded. It will be appreciated that the light guide strip 16 is integrally formed with the display housing 112. It will be appreciated that the light guide strip 16 may be integrally formed with the casing 111 and the display casing 112, so that the light emitted by the light beads 142 can enter the light guide strip 16, and reflect and refract in the light guide strip 16, so that the light guide strip 16 is lightened, and the light of the light guide strip 16 is emitted out of the casing 111 through the display area 112A, so that the display area 112A is lightened, thereby facilitating the user to obtain the display content of the electric toothbrush 1 through the lightened display area 112A.

Referring to fig. 1, 2, 3 and 15, in still other embodiments, after step S200, the process of forming the handle shell 11 further includes:

step S700, the light guide strip 16 is formed.

In the embodiment of the present application, the light guide strip 16 may be molded in the mold cavity first, so as to improve the molding quality of the light guide strip 16.

In step S800, the integrated part formed by the casing 111 and the display casing 112 and the light guide strip 16 are placed in the mold cavity, the carrier 15 is integrally formed outside the light guide strip 16, and the carrier 15 and the display casing 112 and/or the casing 111 are integrally formed, wherein the light emitting element 14 includes the light beads 142.

In this embodiment, the integrated part formed by the casing 111 and the display casing 112 and the light guide strip 16 are placed in the mold cavity, the carrier 15 is formed by integrally forming the light guide strip 16, and the carrier 15 and the display casing 112 are integrally formed, so that the light guide strip 16 and the display casing 112 are integrally formed. It will be appreciated that the carrier 15 may also be integrally formed with the housing 111. It will be appreciated that the carrier 15 may also be integrally formed with the housing 111 and the display housing 112.

Referring to fig. 1, 2, 3 and 16, in some embodiments, step S200 includes:

Step S210, the integrated light guide strip 16 and the carrier 15 are molded first.

In the embodiment of the present application, the light guide strip 16 and the carrier 15 are integrally formed in the mold cavity through a two-shot molding process. It is understood that the light guide strip 16 may be formed first, and then the carrier 15 may be formed on the peripheral side of the light guide strip 16, so that the light guide strip 16 and the carrier 15 are integrally formed. It is understood that the carrier 15 may be molded first, and the carrier 15 may be provided with the light guiding groove 15A, and then the light guiding strip 16 is molded in the light guiding groove 15A, so that the light guiding strip 16 and the carrier 15 are integrally molded.

In step S220, the integrated part formed by the light guide strip 16 and the carrier 15 and the integrated part formed by the housing 111 and the display housing 112 are placed in the mold cavity, and the carrier 15 and the display housing 112 and/or the housing 111 are integrally formed, wherein the light emitting element 14 includes the light beads 142.

In this embodiment, the integrated part formed by the light guide strip 16 and the carrier 15 and the integrated part formed by the casing 111 and the display shell 112 are placed in the mold cavity, and the carrier 15 and the display shell 112 are integrally formed. It will be appreciated that the carrier 15 may be integrally formed with the housing 111. It will be appreciated that the carrier 15 may be integrally formed with the display housing 112. It will be appreciated that the carrier 15 may be integrally formed with the display housing 112 and the machine housing 111.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description of the preferred embodiment of the present invention is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Claims

1. A handle housing for an electric toothbrush, the electric toothbrush comprising a light emitting member, the handle housing comprising:

the shell is internally provided with a containing cavity for containing the luminous element, and the outer surface of the shell is provided with a mounting groove communicated with the containing cavity;

The display shell is positioned in the mounting groove and is provided with a display area for transmitting the light rays emitted by the light emitting element; and

the keys are arranged on the display shell and are arranged at intervals or adjacently to the display area.

2. The handle housing of an electric toothbrush of claim 1, wherein said keys are integrally formed on said display housing; and/or the display shell is integrally formed with the machine shell so as to eliminate a gap between the outer surface of the display shell and the outer surface of the machine shell.

3. The handle housing of an electric toothbrush of claim 1, wherein said display housing has a key aperture therethrough, said key comprising:

the soft rubber part is arranged in the key hole and integrally formed with the hole wall of the key hole, and the soft rubber part is partially exposed out of the display shell so as to be suitable for being pressed.

4. The handle housing of an electric toothbrush of claim 3, wherein said key further comprises:

and the inner extending part is connected with one end of the soft rubber part penetrating into the shell through the key hole, and extends from the soft rubber part to a direction away from the key hole along the inner wall of the display shell, and is integrally formed with the inner wall of the display shell.

5. The handle housing of an electric toothbrush according to claim 4 wherein said inner extension extends from said flexible glue portion through said display housing inner wall to said housing inner wall and said inner extension is integrally formed with said housing inner wall.

6. The handle housing of an electric toothbrush of claim 4, wherein said elastomeric portion is integrally formed with said inner extension; and/or the inner extension part is arranged on the periphery side of the soft rubber part in a surrounding way.

7. The handle housing of an electric toothbrush of claim 1, wherein the display housing comprises:

a housing part installed in the installation groove and having the display area;

an inner shell part connected with the outer shell part and extending from the outer shell part along the inner wall of the shell in a direction away from the mounting groove;

wherein, the shell part and the cell wall of the mounting groove are integrally formed, and/or the inner shell part and the inner wall of the shell are integrally formed.

8. The handle case of an electric toothbrush according to claim 7, wherein the light emitting member includes a display screen having a light emitting area, the housing has a light transmitting hole which is a through hole opened at a bottom of the mounting groove, the light transmitting hole corresponds to the display area, an inner wall surface of the housing portion is connected with a connecting portion connected with a wall of the light transmitting hole, the inner housing portion is connected to the connecting portion so as to pass through an outer peripheral side of the light transmitting hole, and the housing portion, the connecting portion, the inner housing portion and the housing are integrally formed.

9. The handle housing of an electric toothbrush of claim 1, wherein the display housing comprises:

a light-transmitting substrate having light transmittance;

a light-transmitting appearance layer having light transmittance;

an intermediate layer disposed between the light-transmitting substrate and the light-transmitting appearance layer, wherein a region in the intermediate layer printed with a non-light-transmitting coating forms a light-shielding region, and a region in the intermediate layer not printed with the non-light-transmitting coating forms the display region;

the pattern layer is arranged on the shading area and positioned between the shading area and the light-transmitting substrate and/or arranged in an area between the light-transmitting substrate and the light-transmitting appearance layer, which corresponds to the display area, and is formed with preset patterns or preset characters;

the light emitted by the light emitting piece can sequentially pass through the light-transmitting substrate and the light-transmitting appearance layer to be emitted out of the electric toothbrush, and the pattern layer can also be transmitted out through the light-transmitting appearance layer.

10. The display case of an electric toothbrush according to claim 9, wherein the preset pattern of the pattern layer includes a circular ring-shaped pattern surrounding the periphery of the display area, and the preset characters include product identification characters; and/or

The display case further includes:

and the optical film layer is formed on the pattern layer, the light-transmitting appearance layer and/or the intermediate layer, and is provided with a three-dimensional texture pattern.

11. The handle housing of an electric toothbrush according to claim 1, wherein the light emitting member includes a display screen having a light emitting area, the housing has a light transmitting hole which is a through hole opened at a bottom of the mounting groove, and light of the light emitting area illuminates the display area through the light transmitting hole.

12. The handle housing of an electric toothbrush according to claim 11, wherein the number of the light holes is plural, the plural light holes are sequentially arranged at intervals along the length direction of the handle housing, and the light emitting areas of the display screen are plural and correspond to the light holes one by one in position.

13. The handle housing of an electric toothbrush of claim 1, wherein the light emitting member comprises a light bulb, the handle housing further comprising:

the bearing piece is provided with a plurality of light guide grooves which are arranged at intervals; and

the light guide strips are integrally formed with the bearing parts and are arranged in the light guide grooves in a one-to-one correspondence mode, and light emitted by the lamp beads can sequentially pass through the light guide strips, the mounting grooves and the display areas.

14. The handle housing of an electric toothbrush according to claim 13, wherein the number of the lamp beads is plural, the plural light guide strips are sequentially arranged at intervals along the circumferential direction of the handle, and the light guide strips are arranged in one-to-one correspondence with the lamp beads.

15. The handle housing of an electric toothbrush of claim 1, wherein the housing has a connecting end for connection with a brush head and a free end remote from the connecting end, the display housing is disposed closer to the connecting end than the free end, and the display area is disposed between the connecting end and the flexible glue portion of the housing.

16. The handle housing of an electric toothbrush of claim 1, wherein an outer surface of the key is smoothly transitioned with an outer surface of the display housing; and/or, the outer surface of the display shell is in smooth transition with the outer surface of the shell.

17. The handle case of an electric toothbrush according to claim 1, wherein an outer contour line of the display area and a contour line of the soft rubber portion are circular or elliptical; and/or the area of the display area on the surface of the display shell is larger than the area of the soft rubber part on the surface of the display shell.

18. An electric toothbrush, comprising:

a handle housing of an electric toothbrush according to any one of claims 1 to 17;

the movement is arranged in the shell and comprises a mounting bracket;

and the light emitting piece is arranged on the mounting bracket, and light rays emitted by the light emitting piece can be emitted from the display area.

19. The electric toothbrush of claim 18, wherein the light emitting member comprises:

the lamp beads are arranged on the mounting bracket, or

And the display screen is arranged on the mounting bracket and provided with a light-emitting area corresponding to the display area in position.

20. A handle casing forming process for an electric toothbrush, suitable for manufacturing a handle casing according to any one of claims 1 to 17, comprising:

forming the display shell through an injection molding process;

and placing the display shell in a mold cavity and forming the shell so as to integrally form the display shell and the shell.

21. The handle casing forming process of an electric toothbrush according to claim 20, wherein after the step of placing the display casing in a mold cavity and forming the casing so that the display casing is integrally formed with the casing, the handle casing forming process further comprises:

Placing an integrated piece formed by the shell and the display shell in the die cavity, and forming a key on the display shell so as to enable the key and the display shell to be integrally formed; or alternatively

and placing the display shell into a mold cavity, and forming a key on the display shell so that the key and the display shell are integrally formed.

22. The handle housing molding process of an electric toothbrush according to claim 20, wherein the step of molding the display housing through an injection molding process comprises:

providing a light-transmitting substrate;

cutting a plurality of semi-finished products of the display shells through a numerical control machine tool, wherein each semi-finished product comprises the pattern layer and the intermediate layer, a light shielding area is formed in the area of the intermediate layer in each semi-finished product, which is printed with a non-light-transmitting coating, and a display area is formed in the area of the intermediate layer, which is not printed with the non-light-transmitting coating;

23. The handle casing forming process of an electric toothbrush according to claim 22, wherein before the step of forming an intermediate layer on the pattern layer and/or the light-transmitting substrate by a printing process, the handle casing forming process further comprises:

The step of cutting out a plurality of semi-finished products of the display shells through a numerical control machine tool comprises the following steps:

and cutting out a plurality of semi-finished products of the display shells after the numerical control machine tool is aligned through the alignment patterns, wherein the middle layer comprises the alignment patterns.

24. The handle casing forming process of an electric toothbrush according to claim 20, wherein after the step of placing the display casing in a mold cavity and forming the casing so that the display casing is integrally formed with the casing, the handle casing forming process further comprises:

placing an integrated piece formed by the shell and the display shell in the die cavity, and forming a bearing piece on the inner wall of the shell so as to enable the bearing piece and the display shell to be integrally formed and enable the bearing piece to be provided with a plurality of light guide grooves;

Placing an integrated piece formed by the shell, the display shell and the bearing piece in the die cavity, and forming a light guide strip in the light guide groove so as to enable the light guide strip and the inner shell to be integrally formed, wherein the light emitting piece comprises a lamp bead; or,

firstly, forming a light guide strip;

then, the shell, an integrated part formed by the display shell and the light guide strip are placed in the die cavity, a bearing part is integrally formed outside the light guide strip, and the bearing part, the display shell and/or the shell are integrally formed, wherein the light emitting part comprises lamp beads; or alternatively;

the step of placing the housing in a mold cavity and molding the display housing so that the display housing and the housing are integrally molded and the display housing has the display area includes:

firstly, forming an integrated light guide strip and a bearing piece;

and then placing the integrated part formed by the light guide strip and the bearing part and the integrated part formed by the shell and the display shell into the die cavity, and integrally forming the bearing part and the display shell and/or the shell, wherein the light-emitting part comprises a lamp bead.