An electric toothbrush

Abstract

The application relates to the technical field of toothbrush control, and discloses an electric toothbrush, which comprises a handle cylinder, a first machine core frame and a second machine core frame which are detachably connected and are installed in the handle cylinder, a sound wave motor is arranged between the first machine core frame and the second machine core frame, a brush head assembly is clamped on a driving shaft of the sound wave motor, and a control board is arranged on one side of the first machine core frame; a switch board is arranged on one side of the second machine core frame, a micro switch for sensing the pressure of the brush head assembly is arranged on the switch board, a guide rail is arranged on the side wall of the first machine core frame, a sliding groove which is in sliding cooperation with the guide rail is arranged in the handle cylinder, a convex point is arranged on the guide rail, the first machine core frame is in interference cooperation with the handle cylinder through the convex point, a shock-absorbing ring is sleeved with one end of the first machine core frame and the second machine core frame, and the shock-absorbing ring is in abutment with the inner wall of the handle cylinder. The application simplifies the pressure sensing structure, can reduce the manufacturing cost of the electric toothbrush, can effectively reduce the noise of the electric toothbrush due to the shock-absorbing and positioning effects of the shock-absorbing ring, and enhances the use experience of users.

Description

Technical Field

[0001] This invention relates to the field of toothbrush control technology, and more particularly to an electric toothbrush. Background Technology

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

[0003] In existing technology, electric toothbrushes oscillate the brush head during operation to achieve electric teeth cleaning, and a pressure sensing structure detects the pressure to prevent excessive pressure from the brush head. Traditional pressure sensing structures use a motor mounting sleeve that presses against a pressure switch for detection. However, this pressure sensing structure is relatively complex and costly; furthermore, the high-speed operation of the motor generates significant noise, negatively impacting the user experience.

[0004] Therefore, how to provide an electric toothbrush that simplifies the pressure sensing structure and reduces the noise of the electric toothbrush has become an urgent technical problem to be solved. Summary of the Invention

[0005] The technical problem to be solved by the present invention is how to provide an electric toothbrush that simplifies the pressure sensing structure and reduces the noise of the electric toothbrush.

[0006] Therefore, according to a first aspect, an embodiment of the present invention discloses an electric toothbrush, comprising: a handle tube, wherein a first core frame and a second core frame are detachably connected and installed inside the handle tube, a sonic motor is provided between the first core frame and the second core frame, a brush head assembly is snapped onto the drive shaft of the sonic motor, a control board electrically connected to the sonic motor is installed on one side of the first core frame, and a switch plate electrically connected to the control board is provided on one side of the second core frame, the switch plate is provided with a micro switch for sensing the pressure of the brush head assembly, the micro switch is clearance-fitted with the inner wall of the handle tube, a guide rail is provided on the side wall of the first core frame, a groove is provided inside the handle tube for sliding fit with the guide rail, a protrusion is provided on the guide rail, the first core frame is interference-fitted with the handle tube through the protrusion, and a shock-absorbing ring is sleeved on one end of the first core frame and the second core frame, the shock-absorbing ring abutting against the inner wall of the handle tube.

[0007] The present invention is further configured such that a first damping sleeve is fitted onto one end of the acoustic motor, and a second damping sleeve is fitted onto the other end of the acoustic motor, wherein both the first damping sleeve and the second damping sleeve are used to dampen the operation of the acoustic motor.

[0008] The invention is further configured such that the control board is provided with a plurality of indicator lights, which are used to display the working status of the electric toothbrush.

[0009] The present invention is further configured such that a battery electrically connected to the control board is provided between the first mechanism frame and the second mechanism frame.

[0010] The present invention is further configured such that a handle bottom cover is installed at the bottom of the handle tube and engages with the first mechanism frame, and a charging socket for charging the battery is provided inside the handle bottom cover.

[0011] The present invention is further configured such that a bottom waterproof ring is fitted onto the bottom cover of the handle, and the bottom waterproof ring abuts against the inner wall of the handle cylinder.

[0012] The present invention is further configured such that a top waterproof ring is provided at the top of the handle cylinder, the drive shaft passes through the top waterproof ring, and the top waterproof ring is provided with a waterproof protrusion that abuts against the inner wall of the handle cylinder.

[0013] The present invention is further configured such that the outer side of the shock-absorbing ring is provided with a plurality of shock-absorbing teeth.

[0014] The present invention is further configured such that the second mechanism frame is provided with a placement slot for placing the switch plate, and the second mechanism frame is provided with a hot-melt column that is fused and fixed to the switch plate.

[0015] The present invention is further configured such that the brush head assembly includes a brush handle and a decorative ring, the brush handle and the decorative ring are fixedly connected, a plurality of bristles are installed on the brush handle, and the drive shaft is engaged with the decorative ring.

[0016] The present invention has the following beneficial effects: a switch plate electrically connected to the control board is provided on one side of the second core frame, and a micro switch for sensing the pressure of the brush head assembly is provided on the switch plate. A shock-absorbing ring is sleeved on one end of the first core frame and the second core frame, thereby providing an electric toothbrush that simplifies the pressure sensing structure and reduces the manufacturing cost of the electric toothbrush. Due to the shock absorption and positioning effect of the shock-absorbing ring, the electric toothbrush can effectively reduce noise and enhance the user experience. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a three-dimensional structural diagram of an electric toothbrush disclosed in this embodiment;

[0019] Figure 2 This is a schematic diagram of the front view structure of an electric toothbrush disclosed in this embodiment;

[0020] Figure 3 yes Figure 2 A schematic diagram of the AA cross-sectional structure;

[0021] Figure 4 This is one of the exploded structural diagrams of an electric toothbrush disclosed in this embodiment;

[0022] Figure 5 This is the second exploded structural diagram of an electric toothbrush disclosed in this embodiment;

[0023] Figure 6 This is a partial structural schematic diagram of an electric toothbrush disclosed in this embodiment;

[0024] Figure 7 This is a schematic diagram of the structure of a shock-absorbing ring in an electric toothbrush disclosed in this embodiment;

[0025] Figure 8 This is a schematic diagram of the main view of the top waterproof ring structure in an electric toothbrush disclosed in this embodiment;

[0026] Figure 9 yes Figure 8 A schematic diagram of the BB cross-sectional structure;

[0027] Figure 10 This is a schematic diagram of the structure of the first motor frame in an electric toothbrush disclosed in this embodiment;

[0028] Figure 11 This is a schematic diagram of the structure of the handle tube in an electric toothbrush disclosed in this embodiment;

[0029] Figure 12 This is an exploded structural diagram of the brush head assembly in an electric toothbrush disclosed in this embodiment.

[0030] Reference numerals: 1. Handle sleeve; 11. Slide groove; 12. Slot; 2. First mechanism frame; 21. Guide rail; 22. Protrusion; 23. Hook; 3. Second mechanism frame; 31. Placement slot; 32. Hot melt column; 4. Sonic motor; 41. Drive shaft; 5. Brush head assembly; 51. Brush handle; 52. Decorative ring; 53. Brush bristles; 6. Control board; 61. Indicator light; 7. Switch board; 8. Micro switch; 9. Shock-absorbing ring; 91. Shock-absorbing teeth; 10. First shock-absorbing sleeve; 13. Second shock-absorbing sleeve; 14. Battery; 15. Handle bottom cover; 16. Charging base; 17. Bottom waterproof ring; 18. Top waterproof ring; 181. Waterproof protrusion; 182. Waterproof boss; 19. Control button. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0035] This embodiment is an electric toothbrush, including: a handle tube 1, a first core frame 2 and a second core frame 3 that are detachably connected are installed inside the handle tube 1, a sonic motor 4 is provided between the first core frame 2 and the second core frame 3, a brush head assembly 5 is snapped onto the drive shaft 41 of the sonic motor 4, and a control board 6 that is electrically connected to the sonic motor 4 is installed on one side of the first core frame 2.

[0036] The second mechanism frame 3 has a switch plate 7 electrically connected to the control board 6 on one side. The switch plate 7 has a micro switch 8 for sensing the pressure of the brush head assembly 5. The micro switch 8 is clearance-fitted with the inner wall of the handle cylinder 1. The side wall of the first mechanism frame 2 has a guide rail 21. The handle cylinder 1 has a slide groove 11 that slides with the guide rail 21. The guide rail 21 has a protrusion 22. The first mechanism frame 2 is interference-fitted with the handle cylinder 1 through the protrusion 22. A shock-absorbing ring 9 is sleeved on one end of the first mechanism frame 2 and the second mechanism frame 3. The shock-absorbing ring 9 abuts against the inner wall of the handle cylinder 1.

[0037] The electric toothbrush of this embodiment simplifies the pressure sensing structure, which can reduce the manufacturing cost of the electric toothbrush. Due to the shock absorption and positioning effect of the shock-absorbing ring 9, the electric toothbrush can effectively reduce noise and enhance the user experience.

[0038] like Figure 3 and Figure 6 As shown, a first damping sleeve 10 is fitted onto one end of the acoustic motor 4, and a second damping sleeve 13 is fitted onto the other end. Both the first damping sleeve 10 and the second damping sleeve 13 are used to dampen the vibration of the acoustic motor 4 during operation. In specific implementation, the first damping sleeve 10 abuts against the inner walls of the first core frame 2 and the second core frame 3, respectively, and the second damping sleeve 13 abuts against the inner walls of the first core frame 2 and the second core frame 3, respectively. Both the first damping sleeve 10 and the second damping sleeve 13 are made of elastic material. The arrangement of the first damping sleeve 10 and the second damping sleeve 13 facilitates the damping of the acoustic motor 4 during operation.

[0039] like Figure 3-6 As shown, the control board 6 is equipped with several indicator lights 61, which are used to display the working status of the electric toothbrush. In the specific implementation, the number of indicator lights 61 is set to four, and the indicator lights 61 are LED lights.

[0040] like Figure 3-6 As shown, a battery 14, electrically connected to the control board 6, is provided between the first mechanism frame 2 and the second mechanism frame 3. It should be noted that the battery 14 provides power to the acoustic motor 4.

[0041] like Figure 3-5 As shown, a handle bottom cover 15 is installed at the bottom of the handle tube 1, which is engaged with the first core frame 2. A charging base 16 for charging the battery 14 is located inside the handle bottom cover 15. It should be noted that the charging base 16 is a DC charging base 16, which facilitates the charging of the electric toothbrush.

[0042] like Figure 3-5 As shown, a bottom waterproof ring 17 is fitted onto the bottom cover 15 of the handle, and the bottom waterproof ring 17 abuts against the inner wall of the handle barrel 1. It should be noted that the bottom waterproof ring 17 is O-shaped and is made of silicone material. The bottom waterproof ring 17 facilitates waterproofing of the bottom of the electric toothbrush.

[0043] like Figure 3-6As shown, the top of the handle cylinder 1 is provided with a top waterproof ring 18, through which the drive shaft 41 passes. The top waterproof ring 18 has a waterproof protrusion 181 that abuts against the inner wall of the handle cylinder 1. It should be noted that, through the setting of the top waterproof ring 18, the waterproof protrusion 181 plays a waterproof role, making it easy to waterproof the top of the electric toothbrush; the top of the top waterproof ring 18 is provided with a waterproof boss 182, the horizontal height of which is higher than the top end face of the handle cylinder 1.

[0044] like Figure 7 As shown, the outer side of the shock-absorbing ring 9 is provided with several shock-absorbing teeth 91. In the specific implementation process, the shock-absorbing teeth 91 are evenly distributed along the circumference of the shock-absorbing ring 9, and the shock-absorbing teeth 91 abut against the inner wall of the handle cylinder 1. Both the shock-absorbing ring 9 and the shock-absorbing teeth 91 are made of soft rubber material. Through the setting of the shock-absorbing ring 9 and the shock-absorbing teeth 91, the shock-absorbing teeth 91 play a shock-absorbing role, which facilitates noise reduction of the electric toothbrush.

[0045] like Figure 5 As shown, the second mechanism frame 3 is provided with a placement slot 31 for placing the switch plate 7, and the second mechanism frame 3 is provided with a hot-melt column 32 for welding and fixing the switch plate 7. It should be noted that the placement slot 31 facilitates the limiting installation of the switch plate 7; the hot-melt column 32 facilitates the fixing of the switch plate 7 in the placement slot 31.

[0046] like Figure 3 , Figure 5 and Figure 12 As shown, the brush head assembly 5 includes a brush handle 51 and a decorative ring 52, which are fixedly connected. Several bristles 53 are mounted on the brush handle 51, and the drive shaft 41 is engaged with the decorative ring 52. In practice, the bristles 53 and the switch plate 7 are distributed on both sides of the center line of the electric toothbrush; the brush handle 51 and the decorative ring 52 are ultrasonically welded together.

[0047] In the actual implementation process, when the electric toothbrush is in use, the brush head assembly 5 is subjected to pressure, the shock-absorbing ring 9 is squeezed, the second core frame 3 moves, and drives the micro switch 8 to abut against the inner wall of the handle tube 1, so that the micro switch 8 is pressed, the indicator light 61 vibrates intermittently to warn, and controls the output power of the sonic motor 4 to reduce the pressure on the brush head, prevent the pressure on the brush head from being too high, and ensure the user's safety.

[0048] Working principle: A switch plate 7 electrically connected to the control board 6 is provided on one side of the second core frame 3. The switch plate 7 is provided with a micro switch 8 for sensing the pressure of the brush head assembly 5. A shock-absorbing ring 9 is sleeved on one end of the first core frame 2 and the second core frame 3, thus providing an electric toothbrush that simplifies the pressure sensing structure and reduces the manufacturing cost of the electric toothbrush. Due to the shock absorption and positioning effect of the shock-absorbing ring 9, the electric toothbrush can effectively reduce noise and enhance the user experience.

[0049] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An electric toothbrush, characterized in that, include: Handle cylinder (1), a first core frame (2) and a second core frame (3) are installed inside the handle cylinder (1) and are detachably connected. A sonic motor (4) is provided between the first core frame (2) and the second core frame (3). The drive shaft (41) of the sonic motor (4) is snapped with a brush head assembly (5). A control board (6) electrically connected to the sonic motor (4) is installed on one side of the first core frame (2). The second core frame (3) has a switch plate (7) electrically connected to the control plate (6) on one side. The switch plate (7) has a micro switch (8) for sensing the pressure of the brush head assembly (5). The micro switch (8) is clearance-fitted with the inner wall of the handle cylinder (1). The side wall of the first core frame (2) has a guide rail (21). The handle cylinder (1) has a groove (11) that slides with the guide rail (21). The guide rail (21) has a protrusion (22). The first core frame (2) is interference-fitted with the handle cylinder (1) through the protrusion (22). A shock-absorbing ring (9) is sleeved on one end of the first core frame (2) and the second core frame (3). The shock-absorbing ring (9) abuts against the inner wall of the handle cylinder (1). The outer side of the shock-absorbing ring (9) is provided with a number of shock-absorbing teeth (91). The number of shock-absorbing teeth (91) are distributed at equal intervals along the circumference of the shock-absorbing ring (9). The shock-absorbing teeth (91) abut against the inner wall of the handle cylinder (1). Both the shock-absorbing ring (9) and the shock-absorbing teeth (91) are made of soft rubber material. After the brush head assembly (5) is subjected to pressure, the shock-absorbing ring (9) is squeezed, the second core frame (3) moves, causing the micro switch (8) to come into contact with the inner wall of the handle cylinder (1), so that the micro switch (8) is pressed.

2. The electric toothbrush according to claim 1, characterized in that, One end of the acoustic motor (4) is fitted with a first damping sleeve (10), and the other end of the acoustic motor (4) is fitted with a second damping sleeve (13). Both the first damping sleeve (10) and the second damping sleeve (13) are used to dampen the operation of the acoustic motor (4).

3. The electric toothbrush according to claim 1, characterized in that, The control panel (6) is provided with several indicator lights (61), which are used to display the working status of the electric toothbrush.

4. The electric toothbrush according to claim 1, characterized in that, A battery (14) electrically connected to the control board (6) is provided between the first mechanism frame (2) and the second mechanism frame (3).

5. The electric toothbrush according to claim 4, characterized in that, The bottom of the handle tube (1) is fitted with a handle bottom cover (15) that engages with the first mechanism frame (2), and the handle bottom cover (15) contains a charging socket (16) for charging the battery (14).

6. The electric toothbrush according to claim 5, characterized in that, The bottom cover (15) of the handle is fitted with a bottom waterproof ring (17), which abuts against the inner wall of the handle cylinder (1).

7. The electric toothbrush according to any one of claims 1-6, characterized in that, The top of the handle cylinder (1) is provided with a top waterproof ring (18), the drive shaft (41) passes through the top waterproof ring (18), and the top waterproof ring (18) is provided with a waterproof protrusion (181) that abuts against the inner wall of the handle cylinder (1).

8. The electric toothbrush according to claim 1, characterized in that, The second mechanism frame (3) is provided with a placement slot (31) for placing the switch plate (7), and the second mechanism frame (3) is provided with a hot melt column (32) that is welded and fixed to the switch plate (7).

9. The electric toothbrush according to any one of claims 1-6 or 8, characterized in that, The brush head assembly (5) includes a brush handle (51) and a decorative ring (52). The brush handle (51) and the decorative ring (52) are fixedly connected. A plurality of bristles (53) are installed on the brush handle (51). The drive shaft (41) is engaged with the decorative ring (52).

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