Integrated sweeping and vibrating electric toothbrush based on direct-current brushless motor

Abstract

The utility model discloses an integrated sweeping and vibrating electric toothbrush based on a direct-current brushless motor. The toothbrush comprises a shell, a motor assembly, a control assembly, a battery assembly and a brush head, the motor assembly, the control assembly and the battery assembly are all arranged in the shell, and the brush head is arranged at one end of the shell through the motor assembly. The motor assembly comprises a motor driving plate, a motor body and a motor rotating shaft which are axially arranged; the motor rotating shaft is arranged at one end of the motor body and is detachably connected with the brush head; the motor driving plate is arranged at the other end of the motor body through the mounting seat and is electrically connected with the motor body; the control assembly is electrically connected with the battery assembly and the motor driving plate, the battery assembly is used for supplying power to the control assembly, and the control assembly is used for controlling the motor driving plate so as to adjust the sweeping frequency and the vibration frequency of the motor body. The device is small in occupied space and convenient to assemble.

Description

Technical Field

[0001] This utility model relates to the field of electric toothbrush technology, and in particular to an integrated sweeping electric toothbrush based on a DC brushless motor. Background Technology

[0002] Electric toothbrushes use the rapid rotation or vibration of a motor core to generate high-frequency vibrations in the brush head, instantly breaking down toothpaste into fine foam that deeply cleans between teeth. At the same time, the vibration of the bristles promotes blood circulation in the mouth and has a massaging effect on the gum tissue.

[0003] Electric toothbrushes are divided into two main categories: rotary and vibrating. However, both rotary and vibrating electric toothbrushes use brush motors or geared motors. These control methods can only achieve vibration or rotational sweeping, and cannot achieve simultaneous vibration and sweeping. The range of motion is small, and the degree of cleaning is limited.

[0004] With the development of DC brushless motor technology and position sensors, servo electric toothbrushes using DC brushless control can perform sweeping motions while vibrating, resulting in a cleaning level and comfort far superior to traditional electric toothbrushes. However, electric toothbrushes controlled by DC brushless motors are more difficult to adapt to traditional electric toothbrushes, occupy more space, have a larger overall structure, and affect assembly.

[0005] In the process of realizing this utility model, the inventors discovered that the prior art has at least the following problems:

[0006] Existing electric toothbrushes that use brushless DC motors for control have components that occupy a lot of space, which affects assembly. Utility Model Content

[0007] The purpose of this invention is to provide an integrated sweeping electric toothbrush based on a brushless DC motor, to solve the technical problem in existing electric toothbrushes controlled by brushless DC motors that have large components that occupy a lot of space and affect assembly. The various technical effects of the preferred solutions provided by this invention are detailed below.

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] This utility model provides an integrated sweeping electric toothbrush based on a DC brushless motor, including a shell, a motor assembly, a control assembly, a battery assembly, and a brush head;

[0010] The housing includes a first accommodating cavity and a second accommodating cavity arranged axially. The motor assembly is disposed in the first accommodating cavity, and the control assembly and the battery assembly are both disposed in the second accommodating cavity. The brush head is disposed at one end of the housing via the motor assembly.

[0011] The motor assembly includes an axially arranged motor drive plate, a motor body, and a motor shaft; the motor shaft is located at one end of the motor body and is detachably connected to the brush head; the motor drive plate is located at the other end of the motor body via a mounting base and is electrically connected to the motor body; wherein, the motor body is a DC brushless motor;

[0012] The control component is electrically connected to the battery assembly and the motor drive board respectively. The battery assembly is used to supply power to the control component, and the control component is used to control the motor drive board to adjust the sweeping frequency and vibration frequency of the motor body.

[0013] Optionally, the motor drive board includes a drive chip and a voltage regulator module;

[0014] The twenty-first, thirty-second, and first pins of the driver chip are all connected to the control component.

[0015] The voltage regulator module includes resistors C3 and C4. The twenty-second and twenty-third pins of the driver chip are connected in series with resistors C3 and C4 and then grounded.

[0016] The ninth and tenth pins of the driver chip are connected to the U phase of the motor body, the eleventh, twelfth, thirteenth, fourteenth, fifteenth and sixteenth pins of the driver chip are connected to the V phase of the motor body, and the seventeenth and eighteenth pins of the driver chip are connected to the W phase of the motor body.

[0017] Optionally, the driver chip is model FG8992Q.

[0018] Optionally, the electric toothbrush further includes a shock-absorbing assembly, which includes a first shock absorber and a second shock absorber; the first shock absorber is disposed inside the housing and is arranged circumferentially along the motor body; the second shock absorber is disposed between the motor drive board and the battery assembly.

[0019] Optionally, the first and second shock absorbers are made of rubber or foam.

[0020] Optionally, the control component is a control circuit board, which is disposed within the second receiving cavity close to the cavity wall.

[0021] Optionally, the brush head includes a bristle portion, a fixing portion, and a connecting portion. The bristle portion is disposed at one end of the fixing portion, and the connecting portion is disposed at the other end of the fixing portion and extends inward in the axial direction from the end of the fixing portion. The brush head is detachably connected to the motor shaft through the fixing portion.

[0022] Optionally, the battery assembly includes a battery body and a charging component, both of which are electrically connected to the control component. The charging component can charge the battery body under the action of the control component and an external charging structure.

[0023] Optionally, the electric toothbrush further includes a button assembly disposed on the outer wall of the housing and electrically connected to the control assembly.

[0024] Optionally, the electric toothbrush further includes a display component disposed on the outer wall of the housing and electrically connected to the control component.

[0025] Implementing one of the above-described technical solutions of this utility model has the following advantages or beneficial effects:

[0026] This utility model includes a housing, a motor assembly, a control assembly, a battery assembly, and a brush head. The housing includes a first and a second axially arranged receiving cavity. The motor assembly is disposed in the first receiving cavity, and the control assembly and the battery assembly are both disposed in the second receiving cavity. The brush head is disposed at one end of the housing via the motor assembly. The motor assembly includes an axially arranged motor drive plate, a motor body, and a motor shaft. The motor shaft is disposed at one end of the motor body and is detachably connected to the brush head. The motor drive plate is disposed at the other end of the motor body via a mounting base and is electrically connected to the motor body. The motor body is a DC brushless motor. The control assembly is electrically connected to both the battery assembly and the motor drive plate. The battery assembly supplies power to the control assembly, and the control assembly controls the motor drive plate to adjust the sweeping frequency and vibration frequency of the motor body.

[0027] In this invention, the motor shaft, motor body, and motor drive board are integrated into a single unit, while the motor drive board and control components are separated, reducing the size of the control components and thus minimizing the space occupied by the motor components within the housing, facilitating assembly. Furthermore, the vibration frequency and sweeping frequency of the motor body are controlled by the control components, allowing for adjustment of the sweeping frequency and vibration frequency levels based on the actual usage conditions. This results in high overall adaptability and strong versatility. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0030] Figure 2 This is a schematic diagram showing the overall structure of an embodiment of this utility model.

[0031] Figure 3 This is a circuit diagram of the motor drive board in this embodiment.

[0032] In the diagram: 1. Outer shell; 2. Motor assembly; 21. Motor drive board; 211. Driver chip; 212. Voltage regulator module; 22. Motor body; 23. Motor shaft; 24. Mounting base; 3. Control assembly; 4. Battery assembly; 41. Battery body; 42. Charging component; 5. Brush head; 51. Brush bristles; 52. Fixing part; 53. Connecting part; 6. Shock absorption assembly; 61. First shock absorber; 62. Second shock absorber; 7. Button assembly; 8. Display assembly. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be adopted to implement this utility model. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of this utility model disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of this utility model.

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] To illustrate the technical solution described in this utility model, specific embodiments are described below, showing only the parts related to the embodiments of this utility model.

[0036] Example:

[0037] like Figure 1-2 As shown, this utility model provides an integrated sweeping and vibrating electric toothbrush based on a DC brushless motor, including a shell 1, a motor assembly 2, a control assembly 3, a battery assembly 4, and a brush head 5. The shell 1 includes an axially arranged first receiving cavity (not shown) and a second receiving cavity (not shown). The motor assembly 2 is disposed in the first receiving cavity, and the control assembly 3 and the battery assembly 4 are both disposed in the second receiving cavity. The brush head 5 is disposed at one end of the shell 1 via the motor assembly 2. The motor assembly 2 includes an axially arranged motor drive plate 21, a motor body 22, and a motor shaft 23. The motor shaft 23 is disposed at one end of the motor body 22 and is detachably connected to the brush head 5. The motor drive plate 21 is disposed at the other end of the motor body 22 via a mounting base 24 and is electrically connected to the motor body 22. The motor body 22 is a DC brushless motor. The control assembly 3 is electrically connected to the battery assembly 4 and the motor drive plate 21 respectively. The battery assembly 4 is used to supply power to the control assembly 3, and the control assembly 3 is used to control the motor drive plate 21 to adjust the sweeping frequency and vibration frequency of the motor body 22.

[0038] Specifically, such as Figure 2As shown, the electric toothbrush described in this embodiment includes a housing 1, a motor assembly 2, a control assembly 3, a battery assembly 4, and a brush head 5. The housing 1 has a first receiving cavity and a second receiving cavity. The first receiving cavity houses the motor assembly 2, and the second receiving cavity houses the control assembly 3 and the battery assembly 4. The first and second receiving cavities within the housing 1 partition the space, effectively utilizing the available space. The brush head 5 is mounted at one end of the housing 1 via the motor assembly 2 and is connected to the motor assembly 2. Under the action of the motor assembly 2, it simultaneously sweeps and vibrates, enhancing the cleaning effect on teeth.

[0039] The motor assembly 2 includes a motor drive plate 21 and a motor body 22 axially disposed within a first receiving cavity, and a motor shaft 23 extending axially outward from the first receiving cavity. The motor drive plate 21 and motor shaft 23 are respectively disposed at both ends of the motor body 22. One end of the motor body 22 and the motor drive plate 21 is provided with a mounting base 24 for mounting the motor drive plate 21. The mounting base 24 facilitates the installation of the motor drive plate 21, saving internal space in the housing 1 while ensuring correct installation of the motor drive plate 21. The motor shaft 23 is actually the output shaft of the motor body 22, capable of driving the brush head 5 to sweep or vibrate under the action of the motor body 22. The motor drive plate 21 and the motor body 22 have the same radial dimension.

[0040] It should be noted that the motor drive board 21 in the motor assembly 2 is connected to the motor body 22 and the control component 3 respectively. The motor drive board 21 can drive the motor body 22 to perform actions, but the vibration frequency and sweeping frequency of the motor body 22 are controlled by the control component 3. The control component 3 can be connected to the motor drive board 21 through the serial port protocol to control the motor body 22 to achieve the corresponding functions.

[0041] In this embodiment, the motor shaft 23, the motor body 22, and the motor drive board 21 are set as a whole, while the motor drive board 21 and the control component 3 are set separately, which reduces the size of the control component 3 and thus reduces the space occupied by the motor component 2 in the housing, making it easier to assemble. Furthermore, the vibration frequency and sweeping frequency of the motor body 22 are controlled by the control component 3, so the adjustment of the sweeping frequency and vibration frequency of the motor body 22 can be selected according to the actual use situation to select the appropriate control component 3 for control. The overall adaptability is high and the adaptability is strong.

[0042] In addition to being connected to the motor assembly 2, the control component 3 is also connected to the battery assembly 4, which is used to power the control component 3.

[0043] As an optional implementation method, such as Figure 3As shown, the motor drive board 21 includes a drive chip 211 and a voltage regulator module 212; the 21st, 32nd and 1st pins of the drive chip 211 are all connected to the control component 3; the voltage regulator module 212 includes resistors C3 and C4, and the 22nd and 23rd pins of the drive chip 211 are connected in series with resistors C3 and C4 respectively and then grounded; the 9th and 10th pins of the drive chip 211 are connected to the U phase of the motor body 22, the 11th, 12th, 13th, 14th, 15th and 16th pins of the drive chip 211 are connected to the V phase of the motor body 22, and the 17th and 18th pins of the drive chip 211 are connected to the W phase of the motor body 22.

[0044] Specifically, the drive chip 211 in the motor drive board 21 is an important component of the motor drive board 21. It is connected to the motor body 22 and the control component 3 respectively. It can control its output to the motor body 22 according to the input of the control component 3, so as to control the motor body 22 according to the corresponding settings of the control component 3, thereby changing the sweeping frequency and vibration frequency of the motor body 22.

[0045] In addition, such as Figure 3 As shown, the voltage regulator module 212 includes resistors C3 and C4. The twenty-second and twenty-third pins of the driver chip 211 are connected in series with resistors C3 and C4, respectively, and then grounded. The voltage regulator module 212 reduces signal jitter and improves the stability and reliability of the entire motor driver board 21.

[0046] In this embodiment, the driver chip 211 is model FG8992Q. The driver chip 211 integrates the encoder, pre-drive, and MOSFET all together, reducing the space required for the motor drive board.

[0047] As an optional implementation method, such as Figure 2 As shown, the electric toothbrush also includes a shock-absorbing component 6, which includes a first shock absorber 61 and a second shock absorber 62. The first shock absorber 61 is disposed inside the housing 1 and is arranged circumferentially along the motor body 22. The second shock absorber 62 is disposed at the end away from the motor drive plate 21 and is connected to the motor body 22.

[0048] Specifically, when the motor body 22 is working, it will generate vibration. A first shock absorber 61 and a second shock absorber 62 are provided in the electric toothbrush to achieve a vibration reduction effect. The first shock absorber 61 is arranged circumferentially around the motor body 22, and is located on the periphery of the motor body 22. It is used to isolate the motor body 22 from the outer casing 1, achieving vibration reduction while also protecting the motor body 22. The second shock absorber 62 is located between the motor drive board 21 and the battery assembly 4, and is used to separate the motor drive board 21 and the battery assembly 4, achieving vibration reduction between the motor drive board 21 and the battery assembly 4, and protecting the motor assembly 2 and the battery assembly 4 to improve the service life of the battery assembly 4 and the motor assembly 2. It should be noted that the materials of the first shock absorber 61 and the second shock absorber 62 are rubber or foam; the specific material used is not limited in this embodiment.

[0049] As an optional implementation, the control component 3 is a control circuit board, which is disposed within the second receiving cavity close to the cavity wall. Specifically, the control component 3 and the battery component 4 are identical, both disposed within the second receiving cavity, with the control component 3 disposed close to the cavity wall. The remaining space within the second receiving cavity is used to house the battery component 4. The control component 3 is a control circuit board, which uses a corresponding control chip and a preset start-up circuit to control the motor component 2; however, this embodiment does not impose specific limitations on this aspect.

[0050] However, it should be noted that the control circuit board needs to be connected to the battery assembly 4 to ensure the normal start-up of the control circuit board and to ensure precise control of the motor assembly 2.

[0051] As an optional implementation method, such as Figure 1-2 As shown, the brush head 5 includes a bristle portion 51, a fixing portion 52, and a connecting portion 53. The bristle portion 51 is disposed at one end of the fixing portion 52, and the connecting portion 53 is disposed at the other end of the fixing portion 52 and extends inward in the axial direction from the end of the fixing portion 52. The brush head 5 is detachably connected to the motor shaft 23 through the fixing portion 52. It should be noted that the brush head 5 can be connected to or disconnected from the motor shaft 23 under the action of the connecting portion 53, and performs synchronous sweeping and vibration according to the motor body 22. The brush head 5 in this embodiment can be replaced according to the actual situation.

[0052] As an optional implementation method, such as Figure 2As shown, the battery assembly 4 includes a battery body 41 and a charging component 42. Both the charging component 42 and the battery body 41 are electrically connected to the control component 3. The charging component 42 can charge the battery body 41 under the action of the control component 3 and the external charging structure. The battery assembly 4 includes a battery body 41 and a charging component 42. The charging component 42 is connected to the battery body 41 and is located at the far end of the motor assembly 2, close to the bottom wall of the outer casing 1. The battery body 41 is connected to both the control component 3 and the charging component 42. The charging component 42 is also connected to the control component 3. The charging component 42 can connect to the external charging structure and can charge the battery body 41 under the action of the control component 3 to ensure that the battery body 41 has sufficient power to drive the motor assembly 2 through the control component 3.

[0053] As an optional implementation method, such as Figure 1-2 As shown, the electric toothbrush also includes a button assembly 7, which is disposed on the outer wall of the housing 1 and electrically connected to the control assembly 3. Specifically, the button assembly 7 is connected to the control assembly 3, and the button assembly 7 can adjust the vibration frequency and sweeping frequency of the motor assembly 2 according to the settings of the control assembly 3, or control the start and stop of the motor assembly 2. The structure is simple and easy to adjust.

[0054] As an optional implementation method, such as Figure 1-2 As shown, the electric toothbrush also includes a display component 8, which is disposed on the outer wall of the housing 1 and electrically connected to the control component 3. Specifically, the electric toothbrush is connected to the control component 3 and can display the current working status of the electric toothbrush, such as the on / off status of the electric toothbrush or the current working level of the electric toothbrush, which is not specifically limited in this embodiment.

[0055] The embodiment is merely a special case and does not indicate that this utility model is implemented in such a way.

[0056] The above description is merely a preferred embodiment of the present utility model. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Furthermore, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present utility model.

Claims

1. A one-piece oscillating electric toothbrush based on a direct current brushless motor, characterized in that, The electric toothbrush comprises a shell (1), a motor assembly (2), a control assembly (3), a battery assembly (4) and a brush head (5); The shell (1) comprises axially arranged first and second accommodating cavities, the motor assembly (2) is arranged in the first accommodating cavity, the control assembly (3) and the battery assembly (4) are arranged in the second accommodating cavity, and the brush head (5) is arranged at one end of the shell (1) through the motor assembly (2); The motor assembly (2) comprises axially arranged motor driving plates (21), a motor body (22) and a motor rotating shaft (23), the motor rotating shaft (23) is arranged at one end of the motor body (22) and detachably connected with the brush head (5), the motor driving plates (21) are arranged at the other end of the motor body (22) through mounting seats (24) and electrically connected with the motor body (22), and the motor body (22) is a direct-current brushless motor. The control assembly (3) is electrically connected with the battery assembly (4) and the motor driving plates (21), the battery assembly (4) is used for supplying power for the control assembly (3), and the control assembly (3) is used for controlling the motor driving plates (21) to adjust the sweeping frequency and the vibration frequency of the motor body (22).

2. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 1, wherein, The motor driving plates (21) comprise driving chips (211) and voltage stabilizing modules (212); The twenty-first pin, the thirty-second pin and the first pin of the driving chip (211) are connected with the control assembly (3); The voltage stabilizing modules (212) comprise resistors C3 and C4, the twenty-second pin and the twenty-third pin of the driving chip (211) are connected with the resistors C3 and C4 in series and then grounded. The ninth pin and the tenth pin of the driving chip (211) are connected with the U phase of the motor body (22), the eleventh pin, the twelfth pin, the thirteenth pin, the fourteenth pin, the fifteenth pin and the sixteenth pin of the driving chip (211) are connected with the V phase of the motor body (22), and the seventeenth pin and the eighteenth pin of the driving chip (211) are connected with the W phase of the motor body (22).

3. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 2, wherein, The model of the driving chip (211) is FG8992Q.

4. The DC brushless motor-based integrated shaking electric toothbrush according to claim 1, wherein, The electric toothbrush further comprises a damping assembly (6), the damping assembly (6) comprises first and second damping members (61, 62), the first damping member (61) is arranged in the shell (1) and arranged circumferentially along the motor body (22), and the second damping member (62) is arranged between the motor driving plates (21) and the battery assembly (4).

5. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 4, wherein, The first and second damping members (61, 62) are made of rubber or foam.

6. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 1, wherein, The control assembly (3) is a control circuit board and arranged in the second accommodating cavity close to the cavity wall of the second accommodating cavity.

7. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 1, wherein, The brush head (5) comprises a bristle part (51), a fixed part (52) and a connecting part (53), the bristle part (51) is arranged at one end of the fixed part (52), the connecting part (53) is arranged at the other end of the fixed part (52) and extends inwardly from the axial direction of the end of the fixed part (52), and the brush head (5) is detachably connected with the motor rotating shaft (23) through the fixed part (52).

8. The DC brushless motor-based integrated shaking electric toothbrush of claim 1, wherein, The battery assembly (4) comprises a battery body (41) and a charging member (42), the charging member (42) and the battery body (41) are both electrically connected with the control assembly (3), and the charging member (42) can charge the battery body (41) under the action of the control assembly (3) and an external charging structure.

9. The DC brushless motor-based integrated shaking electric toothbrush according to claim 1, wherein, The electric toothbrush further comprises a button assembly (7), which is arranged on the outer wall of the shell (1) and is electrically connected with the control assembly (3).

10. The integrated oscillating electric toothbrush based on a DC brushless motor of claim 1, wherein, The electric toothbrush further comprises a display assembly (8), which is arranged on the outer wall of the shell (1) and is electrically connected with the control assembly (3).

Images