Injection molding type uniform light guide handle assembly and electric toothbrush

Abstract

The utility model relates to the technical field of electric toothbrushes, and particularly discloses an injection molding type uniform light guide handle assembly and an electric toothbrush. The handle assembly comprises a handle shell, a panel assembly and a state light guide assembly, and the panel assembly and the state light guide assembly are arranged on the handle shell in a sleeved mode through the multi-layer injection molding technology. The bar-shaped lamp set is arranged on the handle assembly, processes in all working modes are provided, and richer information is provided for a user; through the arrangement of the black silica gel light insulation piece and the groove of the decoration panel, light of the light emitting piece is effectively gathered, and information transmission is more accurate. The utility model further provides the electric toothbrush comprising the handle assembly, the design of a multi-layer injection molding process is adopted, the light guide part and the fixing part are combined through a die sleeving process, the waterproof grade of the electric toothbrush is improved to IPX8, meanwhile, the information interaction content of the handle is enriched, and the uniform light emitting effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, specifically to an injection-molded uniform light-guiding handle assembly and an electric toothbrush. Background Technology

[0002] Traditional electric toothbrushes mostly only have basic cleaning functions and lack effective user interaction. Users often find it difficult to intuitively understand important information such as the toothbrush's operating time, cleaning mode, and remaining battery power. In recent years, to meet users' demands for more diverse and intelligent electric toothbrushes, some electric toothbrushes with interactive lighting features have appeared on the market.

[0003] Chinese utility model patent CN219184246U (published on June 16, 2023) discloses a lighting structure for an electric toothbrush. By setting several light-emitting holes on the handle and placing light-blocking components between adjacent holes, each hole forms an independent light-emitting area. Simultaneously, light-emitting components corresponding to each hole are installed inside the handle, enabling human-computer interaction. Users can clearly observe the light illuminating at the corresponding setting, thus understanding the toothbrush's working status. However, the lighting display method in this technical solution is relatively simple, providing information only through the on / off state of the light, failing to offer a richer and more visually appealing interactive experience.

[0004] Chinese invention patent CN109106460B (published on October 27, 2023) discloses an electric toothbrush, including: a handle, a toothbrush head disposed on the handle, and a light-transmitting component disposed on the handle wall; the handle has an indicator light corresponding to the light-transmitting component, and a mechanism for driving the toothbrush head to vibrate or rotate; the light-transmitting component is prepared by a primary injection molding process and connected to the handle by a secondary injection molding process; a positioning part is provided on the light-transmitting component, which is used to position the light-transmitting component during the secondary injection molding process. This invention connects the light-transmitting component to the handle through a secondary injection molding process, which can achieve gapless molding of the light-transmitting component and the handle, improving the waterproof capability of the electric toothbrush; in addition, by providing a positioning part on the light-transmitting component, the light-transmitting component can be positioned during the secondary injection molding process, facilitating the secondary injection molding and improving the production efficiency of the electric toothbrush. This prior art mainly solves the problem of water leakage from the buttons and lights on the electric toothbrush handle, but does not provide much information on the light transmission performance and light uniformity.

[0005] In summary, while existing electric toothbrush lighting interaction and waterproofing technologies have made some progress, they still have many shortcomings. These include insufficient variety of lighting interaction methods, limited display content and interactive functions, uneven lighting distribution, and difficulty in providing more attractive and accurate information, thus failing to fully meet users' needs for intelligent and personalized electric toothbrushes. Therefore, there is an urgent need for improved electric toothbrush lighting interaction and waterproofing technologies to overcome the deficiencies of existing technologies and provide users with a better and more convenient user experience. Utility Model Content

[0006] This invention addresses the problems in existing electric toothbrushes, such as insufficient light interaction methods, uneven light emission, and inadequate sealing of the control panel and buttons leading to water leakage. It provides an injection-molded handle assembly with uniform light guidance and an electric toothbrush.

[0007] This utility model is achieved through the following technical solution:

[0008] A uniformly light-guiding handle assembly with injection molding is provided. The handle assembly includes a handle shell, a panel assembly, and a status light guide assembly. A switch is provided on the handle shell. The panel assembly and the switch are located on the same side of the handle shell. The status light guide assembly is located on the opposite side of the panel assembly. The panel assembly and the status light guide assembly are assembled onto the handle shell using a multi-layer injection molding process.

[0009] The handle assembly also includes a bottom cover and waterproof silicone. The bottom cover is located at the bottom of the handle housing, and the waterproof silicone abuts against the inner circumference of the handle housing through the bottom cover. This design allows the waterproof silicone to adhere tightly to the inner circumference of the handle housing through the compression of the bottom cover, filling the tiny gaps between the bottom cover and the handle housing and forming a flexible sealing barrier. Even when the electric toothbrush vibrates at high frequencies, it maintains a seal, preventing moisture from seeping into the handle assembly from the seams.

[0010] Furthermore, the panel assembly includes a decorative panel, button encapsulation, and light guide pillars, the light guide pillars including partitioned light guide pillars, and the surface of the decorative panel including partitioned light-transmitting portions;

[0011] Furthermore, the panel assembly also includes a decorative piece set within the decorative panel. Zoned light-transmitting sections surround the decorative piece, and zoned light guides correspond to these sections. The zoned light guides and sections correspond to the four areas of the oral cavity (upper left, upper right, lower left, and lower right). Each zone is illuminated at a set time to prompt the user to switch brushing areas, ensuring a scientifically appropriate brushing duration.

[0012] Furthermore, the handle housing is also provided with mounting holes, a charging light-transmitting part, and a strip light-transmitting part; the mounting holes correspond to the panel assembly; the strip light-transmitting part corresponds to the status light guide assembly.

[0013] Furthermore, the decorative panel is made of PC and also has button holes and a mode light-transmitting section; the zoned light-transmitting section is divided into multiple areas; the light guide column is made of ABS and also includes a mode light guide column and a charging light guide column; the mode light guide column corresponds to the mode light-transmitting section; the charging light guide column corresponds to the charging light-transmitting section.

[0014] The settings of the mode light guide column and mode light transmission part can be adjusted by changing the motor vibration frequency, amplitude, or brush head movement direction to provide customized cleaning solutions for different oral needs, thereby significantly improving brushing effect and reducing potential damage.

[0015] Optionally, the decorative panel is prepared by a one-time injection molding process, and the decorative piece, button overmolding, and light guide column are all engraved onto the decorative panel by a two-time injection molding process.

[0016] Furthermore, the panel assembly and handle shell are integrally molded. This design creates a seamless whole, completely eliminating waterproofing issues and achieving a unified and aesthetically pleasing appearance. It also eliminates the need for additional panel mounting or injection molding onto the handle shell during production, simplifying the process and improving production efficiency.

[0017] Alternatively, the panel assembly can be attached to the handle housing using adhesive.

[0018] Furthermore, the back of the decorative panel is provided with a groove, and the partition light guide column is installed in the groove, which can effectively separate the lights and avoid false alarms and transmission of incorrect information between different areas.

[0019] Furthermore, the state light guide assembly includes a light guide part and a fixing part. The light guide part specifically includes a light inlet end and a light outlet end, with the light outlet end close to the strip-shaped light-transmitting part.

[0020] The light guide is made of ABS material, and the fixing part is made of PC material. Both are manufactured using a one-time two-color injection molding process, and then seamlessly connected to the handle shell through a two-time injection molding process.

[0021] Furthermore, the fixing part is provided with a light guide hole, and the light guide part is disposed inside the light guide hole.

[0022] Furthermore, the area of ​​the light guide aperture near the end of the strip-shaped light-transmitting part is smaller than the area away from the end of the strip-shaped light-transmitting part.

[0023] Furthermore, the light guide column of the panel assembly has a beveled transition at the base to prevent deformation and breakage caused by repeated pressing or dropping during injection molding, thus improving the durability of the toothbrush handle.

[0024] The light guide component of the status light guide assembly has a smooth chamfer at one end of the strip-shaped light-transmitting part near the handle housing. The chamfer causes the light to undergo gradual refraction when it transitions from the light guide to the light-transmitting part, ensuring uniform brightness of the light strip.

[0025] Furthermore, the handle assembly is also provided with a bracket, on which a first circuit board and a second circuit board are mounted.

[0026] The first circuit board is equipped with multiple buttons and multiple light-emitting components;

[0027] Multiple buttons include a first button and a second button. The first button is used to control the motor switch, and the second button is used to switch brushing modes.

[0028] Multiple light-emitting components include a first light group, a second light group, and a third light group, which are located on the front of the handle assembly.

[0029] The second circuit board is located on the back of the handle assembly and is connected to the first circuit board. The fourth light group is located on the second circuit board.

[0030] Furthermore, the fourth light group contains a plurality of LED beads positioned on one side of the second circuit board. These LED beads emit light from the side, ensuring even illumination of the light panel. A light guide is positioned between the plurality of LED beads and the strip-shaped light-transmitting section. This arrangement of the light guide and the plurality of LED beads indicates the status of different usage modes, such as overpressure reminders, brushing timer reminders, charging reminders, or reminders for different intensity levels, significantly enhancing the richness of information interaction provided by the electric toothbrush.

[0031] Furthermore, black silicone light-blocking components are placed around multiple light-emitting components. These components, located on the first circuit board, separate adjacent light groups. The high light absorption properties of the black silicone absorb LED backlight overflowing from the button gaps, preventing "light leakage" or "halo" in the button area at night or in low-light environments, thus maintaining a clean product appearance. At the same time, the silicone material tightly wraps around the button's mechanical structure, filling the micron-level gaps between the button and the handle shell, preventing moisture and toothpaste foam from seeping into the internal circuitry.

[0032] This application also provides an electric toothbrush, including the handle assembly described above.

[0033] The electric toothbrush includes a handle assembly, a brush head, and an internal structure; the brush head is connected to the internal structure, and the handle assembly is mounted on the periphery of the internal structure.

[0034] The beneficial effects of this utility model are:

[0035] 1. By using a multi-layer injection molding process for the panel components, multiple semi-transparent and solid-color parts are combined using a die-casting process to achieve a unified appearance, which can improve the waterproof rating of the electric toothbrush to IPX8, while enriching the visual effect of the panel components.

[0036] 2. By using black silicone light-blocking components and recessed decorative panels, the light from the luminous components is effectively focused, avoiding interference with adjacent zones and making information transmission more accurate;

[0037] 3. By setting up the rear strip light group and status light guide component, progress indicators are provided in various modes, providing users with richer interactive information;

[0038] 4. By making the root of the exposed feature part of the light guide column beveled and rounding the root of the light guide component of the status light guide assembly, deformation caused by injection molding is avoided, which affects the appearance of the light guide display effect and improves the durability of the handle.

[0039] 5. By combining raw materials and production processes through optical principles, it replaces the traditional front-emitting LED and array arrangement to achieve the effect of uniform light source.

[0040] The above is merely an overview of the technical solution of this application. To enable the technical means of this application to be implemented according to the content of the specification, and to make the above and other objects, features, and advantages of this application clearer and easier to understand, the embodiments of this application are described in detail below with reference to the accompanying drawings. Based on the following detailed description of specific embodiments of this application in conjunction with the accompanying drawings, those skilled in the art will more clearly understand the above and other objects, features, and advantages of this application. Attached Figure Description

[0041] To more clearly illustrate the technical solutions of this utility model and its embodiments, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0042] Figure 1 This is an exploded view of the handle assembly according to an embodiment of this application.

[0043] Figure 2 This is an exploded structural diagram of the panel assembly according to an embodiment of this application.

[0044] Figure 3 This is a schematic diagram of the back structure of the decorative panel in an embodiment of this application.

[0045] Figure 4 This is an exploded structural diagram of the state light guide component in an embodiment of this application.

[0046] Figure 5 This is an exploded structural diagram of the handle assembly and internal structure according to an embodiment of this application.

[0047] Figure 6 This is an exploded view of the back of the handle assembly according to an embodiment of this application.

[0048] Figure 7 This is a frontal exploded view of an electric toothbrush according to an embodiment of this application.

[0049] Reference numerals: 1. Handle assembly; 2. Handle shell; 21. Mounting hole; 22. Charging light-transmitting part; 23. Strip light-transmitting part; 3. Panel assembly; 31. Decorative panel; 311. Button hole; 312. Mode light-transmitting part; 313. Zoned light-transmitting part; 314. Groove; 32. Decorative piece; 33. Button coating; 34. Light guide column; 341. Zoned light guide column; 342. Mode light guide column; 343. Charging light guide column; 4. Status light guide assembly; 41. Guide... Light source; 411, light inlet; 412, light outlet; 42, fixing part; 421, light guide hole; 5, first circuit board; 51, button; 511, first button; 512, second button; 52, light-emitting component; 521, first lamp group; 522, second lamp group; 523, third lamp group; 524, fourth lamp group; 525, LED lamp bead; 526, black silicone light shield; 53, second circuit board; 6, brush head; 71, bottom cover; 72, waterproof silicone. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0051] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0052] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0053] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0054] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0055] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0056] Example 1

[0057] This embodiment provides an injection-molded uniform light-guiding handle assembly, as detailed below:

[0058] like Figure 1 , Figure 2 and Figure 6 As shown, the handle assembly 1 includes a handle housing 2, a panel assembly 3, and a status light guide assembly 4;

[0059] A switch is provided on the handle housing 2. The panel assembly 3 and the switch are located on the same side of the handle housing 2. The status light guide assembly 4 is located on the opposite side of the panel assembly 3. The panel assembly 3 and the status light guide assembly 4 are fitted onto the handle housing 2 using a multi-layer injection molding process.

[0060] The handle assembly also includes a bottom cover 71 and a waterproof silicone 72. The bottom cover 71 is located at the bottom of the handle housing 2, and the waterproof silicone 72 abuts against the inner periphery of the handle housing 2 through the bottom cover 71.

[0061] In one implementation, the panel assembly 3 and the handle housing 2 are integrally injection molded during production; or the panel assembly 3 and the handle housing 2 are integrally welded by ultrasonic welding, or made into a seamless integral unit using a secondary injection molding process.

[0062] In one embodiment, the handle housing 2 has a mounting hole 21, a charging light-transmitting part 22, and a strip light-transmitting part 23. The mounting hole 21 corresponds to the panel assembly 3; the strip light-transmitting part 23 corresponds to the status light guide assembly 4.

[0063] In one embodiment, the panel assembly 3 includes a decorative panel 31, a decorative piece 32, a button cover 33, and a light guide column 34.

[0064] In one implementation, the decorative panel 31 is prepared by a one-time injection molding process, and the decorative piece 32, the button overlay 33, and the light guide column 34 are all engraved onto the decorative panel 31 by a two-time injection molding process.

[0065] In one implementation, the decorative panel 31 is made of solid-color PC and is provided with button holes 311, mode light-transmitting part 312, and partition light-transmitting part 313, which is divided into multiple areas.

[0066] In one implementation, the light guide column 34 is made of transparent ABS and includes a partitioned light guide column 341, a mode light guide column 342, and a charging light guide column 343.

[0067] Decorative piece 32 is disposed within decorative panel 31, and light-transmitting partition 313 is disposed around decorative piece 32;

[0068] The partitioned light guide column 341 corresponds to the partitioned light transmission part 313; the mode light guide column 342 corresponds to the mode light transmission part 312; and the charging light guide column 343 corresponds to the charging light transmission part 22.

[0069] In another embodiment, the panel assembly 3 is attached to the handle housing 2.

[0070] The technical effect achieved in this embodiment is that by designing a multi-layer injection molding process for the panel assembly, multiple semi-transparent and solid-color parts are combined using a die-casting process to achieve a unified appearance, which can improve the waterproof rating of the electric toothbrush to IPX8. At the same time, it enriches the visual effect of the panel assembly.

[0071] Example 2

[0072] This embodiment provides an injection-molded uniform light-guiding handle assembly based on Embodiment 1, as detailed below:

[0073] like Figure 3 As shown, a groove 314 is provided on the back of the decorative panel 31, and the partition light guide column 341 is installed in the groove 314, which can effectively separate the light and avoid the light color crossing between different areas, thereby transmitting incorrect information.

[0074] like Figure 4As shown, the state light guide assembly 4 includes a light guide part 41 and a fixing part 42. The light guide part 41 is made of ABS material, and the fixing part 42 is made of PC material. Both are manufactured using a one-time two-color injection molding process and are seamlessly connected to the handle shell 2 through a secondary injection molding process. The light guide part 41 can be made of a light-transmitting material, preferably a transparent material. The light guide part 41 specifically includes a light inlet end 411 and a light outlet end 412, with the light outlet end 412 located near the strip-shaped light-transmitting part 23. When in operation, the light guide part 41 receives light emitted from the light source through the light inlet end 411 and transmits the light out through the light outlet end 412.

[0075] In a preferred embodiment, the area of ​​the light-inlet end 411 is set to be larger than the area of ​​the light-outlet end 412. Using a larger light-inlet end 411 allows for the reception of more light emitted from the light source, while the relatively smaller area of ​​the light-outlet end 412 makes the light more focused when it exits the light guide section 41, resulting in a better visual effect. The coordinated arrangement of the light-inlet and light-outlet ends better ensures the light-guiding effect of the light guide section 41.

[0076] In one embodiment, the fixing part 42 is made of an opaque material, and the fixing part 42 is also provided with a light guide hole 421, within which the light guide part 41 is adapted. The area of ​​the end of the light guide hole 421 near the strip-shaped light-transmitting part 23 is smaller than the area of ​​the end of the light guide hole 421 away from the strip-shaped light-transmitting part 23. This arrangement better fits the specific shape of the light guide part 41, resulting in a better light guiding effect.

[0077] As one implementation, the roots of the partition light guide column 341 and the mode light guide column 342 of the panel assembly 3 are made with a beveled transition, and the light guide part 41 of the status light guide assembly 4 is provided with a rounded chamfer at one end near the strip light-transmitting part of the handle housing to avoid deformation caused by injection molding and affecting the appearance light guide display effect.

[0078] The technical effects achieved in this embodiment are as follows: by setting the groove behind the decorative panel, the light of the light-emitting component is effectively concentrated, avoiding mutual interference with adjacent zones, and making information transmission more accurate; by making the root of the light guide column beveled and rounded, deformation of the injection molding is avoided, which would affect the appearance of the light guide display effect and improve the durability of the light guide column.

[0079] Example 3

[0080] This embodiment provides an injection-molded uniform light-guiding handle assembly based on Embodiment 1 or 2, as detailed below:

[0081] like Figure 5 As shown, the handle assembly 1 is also provided with a bracket, on which a first circuit board 5 and a second circuit board 53 are provided.

[0082] The first circuit board 5 is provided with multiple buttons 51 and multiple light-emitting components 52;

[0083] The multiple buttons 51 include a first button 511 and a second button 512; wherein, the first button 511 is used to control the motor switch; and the second button 512 is used to switch brushing modes.

[0084] Multiple light-emitting components 52 include a first light group 521, a second light group 522, and a third light group 523; the first light group 521, the second light group 522, and the third light group 523 are disposed on the front of the handle assembly 1;

[0085] In one implementation, the first light group 521 is divided into four areas to display the brushing area; the second light group 522 is used to display the brushing mode; the third light group 523 is used to display the charging status; and the fourth light group 524 is composed of a plurality of LED beads 525, which can indicate the status of different modes, such as overvoltage reminder, brushing timer reminder, and charging progress, by the number and color of the plurality of LED beads 525 emitting light.

[0086] As one implementation method, such as Figure 6 As shown, the second circuit board 53 is disposed on the back of the handle assembly 1 and connected to the first circuit board 5, and the fourth light group 524 is disposed on the second circuit board 53.

[0087] The plurality of LED beads 525 of the fourth lamp group 524 are arranged on one side of the second circuit board 53 and emit light from the side so that the light can be evenly illuminated on the lamp board.

[0088] In one implementation, a black silicone light-blocking element 526 is also provided around the multiple light-emitting components 52; the black silicone light-blocking element 526 is provided on the first circuit board 5 and is used to separate adjacent light groups.

[0089] As one implementation method, the one-piece molding setting can be that the panel assembly 3 and the handle shell 2 are integrally injection molded during production, or the panel assembly 3 and the handle shell 2 can be made into a seamless one-piece by ultrasonic welding and secondary injection molding.

[0090] The beneficial effects of this utility model are:

[0091] 1. The back strip light group and status light guide components provide progress information for each mode, offering users richer information; the black silicone light shield and the grooves in the decorative panel effectively concentrate the light from the light source, avoiding interference with adjacent unit layouts and ensuring more accurate information transmission.

[0092] 2. The one-piece molding design allows for a seamless integration of the panel assembly and the handle shell, completely eliminating waterproofing issues and achieving a uniform and aesthetically pleasing appearance. It also eliminates the need for additional panel assembly installation or secondary injection molding onto the handle shell during production, simplifying the process and improving production efficiency.

[0093] Example 4

[0094] Based on Embodiment 1, Embodiment 2, or Embodiment 3, this embodiment also provides an electric toothbrush, including the handle assembly described above.

[0095] like Figure 7 As shown, the electric toothbrush includes a handle assembly 1, a brush head 6, and an internal structure; the brush head 6 is connected to the internal structure, and the handle assembly 1 is installed on the periphery of the internal structure.

[0096] The beneficial effects of this utility model are: by combining raw materials and production processes through optical principles, it replaces the traditional LED front-emitting light and array arrangement to achieve the effect of uniform light source; the charging light guide column and the pressure-sensitive light guide column are both combined with the handle body by a secondary molding method, which effectively achieves the effect of sealing and waterproofing, and there will be no gaps at the junction of the two parts after molding, so that dirt will not be trapped, the overall appearance is good and the user experience is effectively improved.

[0097] The above description is merely an exemplary embodiment of the present utility model, and not all embodiments. Those skilled in the art should understand that various modifications and variations can be made to the exemplary embodiments of the present disclosure without departing from the spirit and scope of the present disclosure, and all modifications and variations are included within the protection scope of the present disclosure as defined by the claims. The protection scope of the present disclosure is defined by the appended claims, and equivalents of those claims are also included.

Claims

1. A molded uniform light-guiding handle assembly, characterized in that: It includes a handle housing (2), a panel assembly (3), and a status light guide assembly (4); the handle housing (2) is provided with a switch, the panel assembly (3) and the switch are provided on the same side of the handle housing (2), and the status light guide assembly (4) is provided on the opposite side of the panel assembly (3); The handle assembly (1) further includes a bottom cover (71) and a waterproof silicone (72). The bottom cover (71) is disposed at the bottom end of the handle housing (2), and the waterproof silicone (72) abuts against the inner periphery of the handle housing (2) through the bottom cover (71).

2. The injection-molded uniform light-guiding handle assembly according to claim 1, characterized in that: The panel assembly (3) includes a decorative panel (31) and partitioned light guides (341); the surface of the decorative panel (31) includes partitioned light-transmitting portions (313); the partitioned light guides (341) are arranged corresponding to the partitioned light-transmitting portions (313).

3. The injection-molded uniform light-guiding handle assembly according to claim 2, characterized in that: The surface of the handle housing (2) also includes a charging light-transmitting part (22); The surface of the decorative panel (31) also includes a pattern light-transmitting portion (312); The handle housing (2) is provided with a mode light guide post (342) and a charging light guide post (343); The mode light guide column (342) is correspondingly arranged with the mode light transmission part (312); the charging light guide column (343) is correspondingly arranged with the charging light transmission part (22).

4. The injection-molded uniform light-guiding handle assembly according to claim 2, characterized in that: The decorative panel (31) has a groove (314) on its back, and the partition light guide column (341) is installed in the groove (314).

5. The injection-molded uniform light-guiding handle assembly according to claim 4, characterized in that: The handle assembly (1) is also provided with a bracket, on which a plurality of light-emitting components (52) are provided, and a black silicone light-blocking component (526) is provided around the plurality of light-emitting components (52).

6. The injection-molded uniform light-guiding handle assembly according to claim 1, characterized in that: The handle housing (2) has a strip-shaped light-transmitting part (23) on its surface. The status light guide assembly (4) includes a light guide part (41). The handle assembly (1) has a plurality of LED beads (525). The light guide part (41) is located between the plurality of LED beads (525) and the strip-shaped light-transmitting part (23).

7. The injection-molded uniform light-guiding handle assembly according to claim 6, characterized in that: The light guide (41) has a rounded chamfer at one end of the strip-shaped light-transmitting part (23) near the handle housing (2).

8. The injection-molded uniform light-guiding handle assembly according to claim 6, characterized in that: The light guide (41) specifically includes a light inlet (411) and a light outlet (412). The light outlet (412) is close to the strip-shaped light-transmitting part (23), and the area of ​​the light inlet (411) is larger than that of the light outlet (412).

9. The injection-molded uniform light-guiding handle assembly according to claim 6, characterized in that: The state light guide assembly (4) further includes a fixing part (42), the fixing part (42) is provided with a light guide hole (421), and the light guide part (41) is disposed in the light guide hole (421).

10. The injection-molded uniform light-guiding handle assembly according to claim 9, characterized in that: The area of ​​the light guide hole (421) near the end of the strip light-transmitting part (23) is smaller than that of the end away from the strip light-transmitting part (23).

11. The injection-molded uniform light-guiding handle assembly according to claim 3, characterized in that: The root of the partition light guide (341) and / or mode light guide (342) of the panel assembly (3) is made of a beveled transition.

12. A molded uniform light guide handle assembly according to any one of claims 1-11, characterized in that: The panel assembly (3) is integrally formed with the handle housing (2).

13. A molded uniform light guide handle assembly according to any one of claims 1-11, characterized in that: The panel assembly (3) further includes a decorative piece (32) disposed within the decorative panel (31), and the partitioned light-transmitting portion (313) is disposed around the decorative piece (32).

14. An electric toothbrush, characterized in that: The electric toothbrush includes an injection-molded uniform light-guiding handle assembly as described in any one of claims 1-9, and further includes a brush head (6) and an internal structure, wherein the brush head (6) is connected to the internal structure, and the handle assembly (1) is mounted on the periphery of the internal structure.

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