Intelligent multi-vibration toothbrush design

The intelligent multi-vibration toothbrush addresses the lack of mode and intensity flexibility in existing toothbrushes by integrating a control module and magnetic levitation motor, offering customizable cleaning options for enhanced performance and user satisfaction.

DE202026100788U1Active Publication Date: 2026-04-23SHENZHEN RELISH TECH CO LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
SHENZHEN RELISH TECH CO LTD
Filing Date
2026-02-12
Publication Date
2026-04-23

AI Technical Summary

Technical Problem

Existing electric toothbrushes lack flexibility in operating modes and intensity adjustment, failing to meet the diverse needs of users in different cleaning scenarios, thereby affecting cleaning performance and user experience.

Method used

An intelligent multi-vibration toothbrush design featuring a detachable brush head, a control panel with mode and intensity adjustment units, and a magnetic levitation motor, allowing for multiple operating modes and personalized settings through a control module integrated into the printed circuit board.

Benefits of technology

Enhances cleaning performance and user experience by enabling customizable cleaning modes and intensity levels, improving usability and market competitiveness while reducing the risk of damage from improper use.

✦ Generated by Eureka AI based on patent content.

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Abstract

Intelligent multi-vibration toothbrush assembly comprising a handle (1) and a head (2) which is detachably connected to the upper end of the handle (1), wherein a core assembly holder (3) is arranged inside the handle (1), and wherein a printed circuit board (PCB) (4) and a drive motor (5) electrically connected to the PCB (4) are connected to the core assembly holder (3); wherein the drive motor (5) is provided with a drive shaft (6) which extends to an upper end of the handle part (1), the head part (2) being connected to the drive shaft (6); and wherein the handle part (1) is provided with a control panel (7) which is connected to the circuit board (4) and wherein a power sensing unit, a mode switching unit and an intensity adjustment unit are integrated into the circuit board (4).
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Description

TECHNICAL AREA

[0001] The present disclosure relates to the technical field of intelligent toothbrushes, in particular an intelligent multi-vibration toothbrush design. BACKGROUND

[0002] As people increasingly prioritize their oral health, the demand for electric toothbrushes as daily oral cleaning devices continues to grow. Currently, most electric toothbrushes on the market offer basic vibration cleaning functions, but there is still significant room for improvement in terms of the variety of operating modes and the ability to meet individual user needs.

[0003] Users can only perform basic functions via simple on / off buttons and intensity adjustment buttons. While such designs are easy to use, they cannot meet the diverse needs of users regarding cleaning modes and intensity levels in different application scenarios. Therefore, there is a lack of flexibility in selecting the operating mode and intensity, and it is not possible to adapt to the actual needs of the users, which affects the cleaning performance and the user experience. DEPICTION

[0004] The technical problem to be solved by the present disclosure is to overcome the aforementioned technical shortcomings and to provide an intelligent multi-vibration toothbrush design that can be used in multiple modes and that meets the requirements for intensity adjustment.

[0005] To solve the aforementioned technical problems, the present disclosure provides the following technical solution.

[0006] An intelligent multi-vibration toothbrush design comprises a handle and a head, which is detachably connected to the top of the handle. A core assembly holder is located within the handle, and a printed circuit board (PCB) and a drive motor, electrically connected to the PCB, are attached to the core assembly holder.

[0007] The drive motor is equipped with a drive shaft that extends to an upper end of the handle part, with the head part being connected to the drive shaft.

[0008] The handle is equipped with a control panel connected to the circuit board, which integrates a power detection unit, a mode switching unit and an intensity adjustment unit into the circuit board.

[0009] Preferably, the control panel is provided with a control switch and a mode button connected to the circuit board, with a gap between the circuit board and the control panel being filled with a soft rubber seal.

[0010] Preferably, a motor silicone seal, a shaft sleeve and a waterproof ring are successively pushed over the upper end of the handle part and a rotating end of the drive motor.

[0011] Preferably, a lithium battery is embedded in the core assembly holder at its lower end. A further waterproof ring, a base cover, and a dustproof cover, which is slid over the base cover, are successively connected to a lower end of the handle part, with a charging port compatible with the lithium battery being located further in the base cover.

[0012] Preferably, the circuit board is further provided with an indicator light group, wherein the handle part is provided with a light trough matching the indicator light group and wherein a free space between the handle part and the indicator light group is filled with a light-shielding film.

[0013] Preferably, an upper end of the drive shaft is provided with an anti-misalignment slot.

[0014] Preferably, two outer surfaces of the core assembly holder are provided with counterweight grooves, and copper sheets are glued into the counterweight grooves using ethylene-vinyl acetate (EVA) adhesive.

[0015] Preferably the drive motor is a magnetic levitation motor, wherein a Hall switch is electrically connected to the circuit board.

[0016] Preferably, the core assembly holder and the magnetic levitation motor are lined with a rubber-coated layer.

[0017] Preferably, a metal shaft matching the drive shaft is arranged in the head section, wherein an upper end of the metal shaft extends to the upper end of the head section and is provided with a bevel gear, wherein a large bevel gear engages with the bevel gear and wherein a brush head arranged on an outside of the head section is connected to the large bevel gear.

[0018] Compared to existing technologies, the present disclosure offers the following advantages.

[0019] The present disclosure primarily solves the problem that electric toothbrushes only have a single operating mode and do not offer personalized settings to meet the different cleaning needs of users in various scenarios. By placing a control module in the printed circuit board assembly, different operating modes of the electric toothbrush can be controlled.

[0020] In the present disclosure, the brush head is detachably connected to the handle via a motor shaft and can be used for vibration cleaning by controlling the control module. Different brush heads can be used by interchangeability. BRIEF DESCRIPTION OF THE DRAWINGS Fig. Figure 1 is a schematic structural diagram of an intelligent multi-vibration toothbrush design according to an embodiment of the present disclosure; Fig. Figure 2 is a schematic cross-sectional view of an intelligent multi-vibration toothbrush design according to an embodiment of the present disclosure; Fig. Figure 3 is a schematic cross-sectional view of an intelligent multi-vibration toothbrush assembly according to an embodiment of the present disclosure; Fig. Figure 4 is a partial exploded view of an intelligent multi-vibration toothbrush assembly according to an embodiment of the present disclosure; Fig. Figure 5 is a schematic structural diagram of an intelligent multi-vibration toothbrush design according to a further embodiment of the present disclosure; and Fig. Figure 6 is a partially enlarged view of an intelligent multi-vibration toothbrush design according to a further embodiment of the present disclosure;

[0021] The figures show the following: 1. Handle part; 2. Head part; 3. Core assembly holder; 4. Circuit board; 5. Drive motor; 6. Drive shaft; 7. Control panel; 8. Control switch; 9. Mode button; 10. Soft rubber seal; 11. Motor silicone seal; 12. Shaft sleeve; 13. Waterproof ring; 14. Lithium battery; 15. Dustproof cover; 16. Bottom cover; 17. Charging port; 18. Indicator light group; 19. Light shielding film; 20. Anti-alignment slot; 21. Copper sheet; 22. EVA adhesive; 23. Hall switch; 24. Rubber-coated layer; 25. Metal shaft; 26. Bevel gear; 27. Large bevel gear; 28. Brush head. DETAILED DESCRIPTION

[0022] The present disclosure will be described in more detail below with reference to the attached drawings.

[0023] As in the Fig. As shown in Figures 1-6, an intelligent multi-vibration toothbrush assembly comprises a handle 1 and a head 2, which is detachably connected to an upper end of the handle 1. A core assembly holder 3 is arranged within the handle 1, and a printed circuit board (PCB) 4 and a drive motor 5, electrically connected to the PCB 4, are connected to the core assembly holder 3.

[0024] In a specific application, the drive motor 5 is equipped with a drive shaft 6 that extends to the upper end of the handle 1, with the head 2 being connected to the drive shaft 6. The drive motor 5 powers the head to vibrate, thus completing the use of the toothbrush.

[0025] The handle 1 is equipped with a control panel 7, which is connected to the circuit board 4. A power sensing unit, a mode switching unit, and an intensity adjustment unit are integrated into the circuit board 4. The interaction of all these units makes the toothbrush design suitable for daily oral hygiene, especially for users who require different cleaning modes and intensity adjustments, such as those seeking a thorough clean, those with sensitive teeth, or those with specific oral care needs.

[0026] The control panel 7 is equipped with a control switch 8 and a mode button 9, which are connected to the circuit board 4. The gap between the circuit board 4 and the control panel 7 is filled with a soft rubber seal 10. The use of the soft rubber seal 10 improves the ease of use of the buttons.

[0027] A motor silicone seal 11, a shaft sleeve 12, and a waterproof ring 13 are successively slid over the upper end of the handle part 1 and the rotating end of the drive motor 5. A lithium battery 14 is further embedded in the core assembly holder 3 at its lower end. Another waterproof ring 13, a bottom cover 16, and a dustproof cover 15, which is slid over the bottom cover 16, are successively connected to the lower end of the handle part 1, and a charging port 17 suitable for the lithium battery 14 is additionally arranged in the bottom cover 16.

[0028] The two waterproof rings 13 ensure a sealing effect during use and meet the requirements for use in a bathroom environment.

[0029] The circuit board 4 is also equipped with an indicator light group 18. The handle part 1 is fitted with a light trough that matches the indicator light group 18. The space between the handle part 1 and the indicator light group 18 is filled with a light-shielding film 19. Various operating modes and states can be indicated via the indicator light group 18.

[0030] An upper end of the drive shaft 6 is provided with an anti-alignment error slot 20, which enables subsequent assembly and power transmission with the head part.

[0031] The two outer surfaces of the core assembly holder 3 are provided with counterweight grooves, with copper sheets 21 being bonded in the counterweight grooves by ethylene-vinyl acetate (EVA) adhesive 22, thereby improving the feel of the toothbrush.

[0032] To ensure the multimodal use of the toothbrush, the drive motor 5 is a magnetic levitation motor, with a Hall switch 23 electrically connected to the circuit board 4. Furthermore, the core assembly holder 3 and the magnetic levitation motor are lined with a rubber-coated layer 24 to protect the magnetic levitation motor.

[0033] As in the Fig. As shown in Figures 5-6, in a further embodiment a metal shaft 25 matching the drive shaft 6 is arranged in the head part 2, wherein an upper end of the metal shaft 25 extends to the upper end of the head part 2 and is provided with a bevel gear 26, wherein a large bevel gear 27 engages with the bevel gear 26, and wherein a brush head 28 arranged on an outside of the head part 2 is connected to the large bevel gear 27.

[0034] In specific use cases: The circuit board in the handle is equipped with a control module that manages the various operating modes of the electric toothbrush. The brush head is detachably connected to the handle via a motor shaft and can perform a vibratory cleaning action when controlled by the module. The control module includes a power sensing unit, a mode switching unit, and an intensity adjustment unit. The power sensing unit monitors the battery power and displays it via a power indicator light. The mode switching unit toggles between a simple operating mode, a complex operating mode, and a personalized operating mode. When, as in this embodiment, a rotating brush head assembly is used after replacement, the circuit board receives a signal and selects the motor's movement mode via the mode button.The motor shaft is adjusted to oscillate left and right or rotate 360 ​​degrees. The motor shaft drives the rotating toothbrush head, causing it to oscillate left and right or rotate 360 ​​degrees. The rotation speed and angle are adjusted using the mode button.

[0035] The present disclosure fulfills the cleaning requirements of users in various scenarios. Specific effects include improving the cleaning performance and user experience of the electric toothbrush, enhancing the usability and market competitiveness of the electric toothbrush, and reducing the risk of damage caused by improper use.

[0036] The content not described in detail in the description belongs to existing technologies known to those skilled in the art.

[0037] The basic principles, main features, and advantages of the present disclosure have been shown and described above. Those skilled in the art should understand that the present disclosure is not limited to the embodiments mentioned above. The embodiments and descriptions in the description serve only to illustrate the principles of the present disclosure. Various changes and modifications can be made to the present disclosure without altering its core and scope, and all changes and modifications fall within the scope of the claims of the present disclosure.

[0038] The scope of protection of the present disclosure is defined by the attached claims and their equivalents. Therefore, the following detailed description of embodiments of the present disclosure, provided in the drawings, is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the present disclosure.

[0039] Based on the embodiments of the present disclosure, all other embodiments obtained by persons skilled in the art without inventive step fall within the scope of protection of the present disclosure.

[0040] It should be noted that similar numbers and letters represent similar elements in subsequent drawings. Therefore, once an element is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0041] In the description of this disclosure, it should be noted that the terms "middle," "longitudinal," "transverse," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "vertical," "horizontal," "above," "below," "inside," "outside," "clockwise," "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They serve only to simplify the description of this disclosure and do not mean or imply that the device or element in question must have a particular orientation or be designed and operated in a particular orientation. Therefore, they should not be interpreted as limitations of this disclosure.

[0042] Furthermore, the terms “first” and “second” are used only to distinguish descriptions and cannot be understood as indicating or implying a relative meaning or implicitly specifying the number of technical features mentioned. Therefore, features defined by “first” and “second” may explicitly or implicitly include one or more of the features. In the description of this disclosure, “a plurality of” means two or more unless otherwise clearly defined.

[0043] In this disclosure, the technical terms “fastening”, “connection”, “connected”, and “fixation”, unless otherwise specified and clearly limited, are to be understood in a broad sense; for example, they may refer to a permanent connection, a detachable connection, or an integration; or they may refer to a direct connection, an indirect connection via an intermediate medium, or communication between the interiors of two elements, or the interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this disclosure are understandable according to the specific circumstances.

[0044] The present disclosure and its embodiments have been described above. This description is not limiting. The figures shown are only one embodiment of the present disclosure, and the actual structure is not limited to it. In summary, if a person skilled in the art, inspired by this disclosure, designs a similar structure and embodiment without inventive step and without departing from the core of the disclosure, such a design should fall within the scope of protection of the present disclosure.

Claims

[1] Intelligent multi-vibration toothbrush assembly comprising a handle (1) and a head (2) detachably connected to the upper end of the handle (1), wherein a core assembly holder (3) is arranged inside the handle (1), and wherein a printed circuit board (PCB) (4) and a drive motor (5) electrically connected to the PCB (4) are connected to the core assembly holder (3); wherein the drive motor (5) is provided with a drive shaft (6) which extends to an upper end of the handle part (1), the head part (2) being connected to the drive shaft (6); and wherein the handle part (1) is provided with a control panel (7) which is connected to the circuit board (4) and wherein a power sensing unit, a mode switching unit and an intensity adjustment unit are integrated into the circuit board (4). [2] Intelligent multi-vibration toothbrush assembly according to claim 1, wherein the control panel (7) is provided with a control switch (8) and a mode button (9) which are connected to the circuit board (4), and wherein a gap between the circuit board (4) and the control panel (7) is filled with a soft rubber seal (10). [3] Intelligent multi-vibration toothbrush structure according to claim 1, wherein a motor silicone seal (11), a shaft sleeve (12) and a waterproof ring (13) are successively pushed over the upper end of the handle part (1) and a rotating end of the drive motor (5). [4] Intelligent multi-vibration toothbrush assembly according to claim 1 or 3, wherein a lithium battery (14) is further embedded in the core assembly holder (3) at its lower end, wherein a further waterproof ring (13), a base cover (16) and a dustproof cover (15) which is slid over the base cover (16) are successively connected to a lower end of the handle part (1) and wherein a charging port (17) compatible with the lithium battery (14) is additionally arranged in the base cover (16). [5] Intelligent multi-vibration toothbrush design according to claim 2, wherein the circuit board (4) is further provided with an indicator light group (18), wherein the handle part (1) is provided with a light trough matching the indicator light group (18), and wherein a free space between the handle part (1) and the indicator light group (18) is filled with a light-shielding film (19). [6] Intelligent multi-vibration toothbrush assembly according to claim 1, wherein an upper end of the drive shaft (6) is provided with an anti-misalignment slot (20). [7] Intelligent multi-vibration toothbrush assembly according to claim 4, wherein two outer surfaces of the core assembly holder (3) are provided with counterweight grooves and wherein copper sheets (21) are bonded into the counterweight grooves by ethylene vinyl acetate (EVA) adhesive (22). [8] Intelligent multi-vibration toothbrush assembly according to claim 1, wherein the drive motor (5) is a magnetic levitation motor and wherein a Hall switch (23) is electrically connected to the circuit board (4). [9] Intelligent multi-vibration toothbrush assembly according to claim 8, wherein the core assembly holder (3) and the magnetic levitation motor are lined with a rubber-coated layer (24). [10] Intelligent multi-frequency toothbrush design according to any one of claims 1 to 9, wherein a metal shaft (25) matching the drive shaft (6) is arranged in the head part (2), wherein an upper end of the metal shaft (25) extends to the upper end of the head part (2) and is provided with a bevel gear (26), wherein a large bevel gear (27) engages with the bevel gear (26) and wherein a brush head (28) arranged on an outside of the head part (2) is connected to the large bevel gear (27).