Electric toothbrush

Abstract

The utility model belongs to the technical field of articles for daily use, and discloses an electric toothbrush which comprises a brush handle and a brush head, the brush handle comprises a shell, a containing cavity is formed in the shell, and the brush handle further comprises an installation support, a brush head and a handle, the vibration motor is provided with a mounting part and a driving shaft, the mounting part is movably or flexibly connected with the mounting support, the driving shaft penetrates out of the shell to be connected with the brush head, and when the driving shaft is subjected to transverse acting force F, the vibration motor swings around the mounting part; and the control circuit board is fixed on the mounting bracket, the control circuit board is arranged on the side of the vibration motor at an interval, a distance detection piece is arranged on the control circuit board, and the distance detection piece is used for detecting the distance between the distance detection piece and the vibration motor. The electric toothbrush provided by the utility model has a pressure sensing function, and can be automatically started and measure the pressure of the brush head pressing against the teeth of a user.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of daily necessities, especially to an electric toothbrush. BACKGROUND

[0002] The electric toothbrush is a kind of through the quick rotation or vibration of motor core, make brush head produce high frequency vibration, the toothpaste is decomposed into fine foam, in-depth cleaning tooth gap, simultaneously, the tremor of bristle can promote the blood circulation of oral cavity, has the massage effect to gingival tissue.Compared with ordinary toothbrush, electric toothbrush has the advantages such as strong cleaning power, convenient to use, high efficiency of tooth brushing.

[0003] At present, intelligentization is the development trend of household appliances, for electric toothbrush, how to automatically start or detect the size of brushing pressure is an important research direction of intelligentization.

[0004] Therefore, an electric toothbrush is needed to solve the above technical problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an electric toothbrush with pressure sensing function, which can automatically start the electric toothbrush and measure the pressure of the brush head pressing against the user's teeth.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] An electric toothbrush is provided, which includes a handle and a brush head, the handle includes a shell, a receiving cavity is formed in the shell, the handle further includes:

[0008] A mounting bracket;

[0009] A vibration motor with a mounting portion and a driving shaft, the mounting portion is movably or flexibly connected with the mounting bracket, the driving shaft penetrates through the shell to connect the brush head, when the driving shaft is subjected to a lateral force F, the vibration motor swings around the mounting portion;

[0010] A control circuit board is fixed to the mounting bracket, and the control circuit board is arranged beside the vibration motor with a distance, and the control circuit board is provided with a distance detection member for detecting the distance between the vibration motor.

[0011] As a preferred technical solution, the handle further includes:

[0012] A first soft rubber member, the mounting portion is flexibly connected with the mounting bracket through the first soft rubber member, when the driving shaft is subjected to a lateral force F, a part of the first soft rubber member is elastically deformed by extrusion, and the other part is elastically deformed by stretching.

[0013] As a preferred technical scheme, the mounting portion is arranged on the tail end of the vibration motor away from the driving shaft.

[0014] As a preferred technical scheme, the mounting bracket is provided with a first supporting portion at one end close to the mounting portion, the first supporting portion is provided with a mounting groove, the mounting portion penetrates and is mounted in the mounting groove, and the first soft rubber piece is filled in the gap between the outer periphery of the mounting portion and the mounting groove.

[0015] As a preferred technical scheme, the brush handle further comprises:

[0016] The mounting portion is provided with a connecting through hole, the rotating shaft is arranged in the connecting through hole, and both ends of the rotating shaft are connected to the mounting bracket, so that the vibration motor can swing around the rotating shaft when the driving shaft is subjected to a transverse force F.

[0017] As a preferred technical scheme, the mounting bracket is provided with a second supporting portion at one end close to the driving shaft, the second supporting portion is provided with an avoiding through hole for avoiding the driving shaft, and the body of the vibration motor is flexibly connected to the second supporting portion.

[0018] As a preferred technical scheme, the brush handle further comprises:

[0019] The second soft rubber piece is arranged between the body of the vibration motor and the second supporting portion, and the vibration motor and the second supporting portion are flexibly connected through the second soft rubber piece.

[0020] As a preferred technical scheme, the control circuit board is connected to the first supporting portion and the second supporting portion, and the distance detection piece is arranged between the first supporting portion and the second supporting portion.

[0021] As a preferred technical scheme, the distance detection piece adopts one of a laser sensor, an ultrasonic sensor and an infrared sensor.

[0022] As a preferred technical scheme, the brush handle further comprises:

[0023] The battery is mounted on the mounting bracket, and the battery is electrically connected to the vibration motor and the control circuit board to supply power to the vibration motor and the control circuit board.

[0024] The brush handle has the advantages that:

[0025] The electric toothbrush provided by the utility model has a containing cavity formed in the shell of the brush handle, the mounting support, the vibration motor and the control circuit board are all arranged in the containing cavity, the driving shaft of the vibration motor penetrates out of the shell to connect the brush head, the vibration motor drives the brush head to vibrate at high speed to realize the function of automatically cleaning teeth. The vibration motor is mounted on the mounting support through the mounting part, the mounting part is movably connected or flexibly connected with the mounting support, when a user presses the brush head against teeth, the driving shaft is subjected to a transverse force F, the vibration motor swings around the mounting part relative to the mounting support, the distance between the vibration motor and the control circuit board on the side of the vibration motor changes slightly, the distance detecting piece on the control circuit board detects the change of the distance, when the change of the distance detected by the distance detecting piece exceeds a preset value, the pressure sensing function is triggered and the electric toothbrush is turned on, and according to the change of the distance detected by the distance detecting piece, the transverse force F borne by the driving shaft is converted, that is, the pressure of the brush head pressed against the teeth of the user is indirectly measured. In conclusion, the electric toothbrush provided by the utility model has the pressure sensing function, can automatically turn on the electric toothbrush and measure the pressure of the brush head pressed against the teeth of the user. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a partial structure schematic view of the electric toothbrush provided by the utility model embodiment one;

[0027] Figure 2 is a partial structure schematic view of the electric toothbrush provided by the utility model embodiment two.

[0028] In the drawings:

[0029] 1, shell;11, containing cavity;2, mounting support;21, first support part;211, mounting groove;22, second support part;221, avoiding through hole;3, motor;31, mounting part;32, driving shaft;4, control circuit board;41, distance detecting piece;5, first soft rubber piece;6, second soft rubber piece;7, rotating shaft piece;8, battery. DETAILED DESCRIPTION

[0030] The utility model will be further explained in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the utility model and are not limited to the utility model. In addition, it should be noted that in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all the structures.

[0031] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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 refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0033] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0034] Example 1:

[0035] like Figure 1 As shown, this embodiment provides an electric toothbrush, including a handle and a brush head. The handle includes a housing 1, a mounting bracket 2, a vibration motor 3, a control circuit board 4, and a battery 8. A receiving cavity 11 is formed inside the housing 1. The mounting bracket 2, the vibration motor 3, and the control circuit board 4 are all installed in the receiving cavity 11. The vibration motor 3 has a drive shaft 32 extending out of the housing 1. The drive shaft 32 is used to connect to the brush head to drive the brush head to vibrate at high frequency. The control circuit board 4 is electrically connected to the vibration motor 3 to control the operation of the vibration motor 3. The battery 8 is installed in the mounting bracket 2 and is electrically connected to both the vibration motor 3 and the control circuit board 4 to supply power to the vibration motor 3 and the control circuit board 4.

[0036] Furthermore, such as Figure 1As shown, the vibration motor 3 also has a mounting portion 31, which is flexibly connected with the mounting bracket 2, and the control circuit board 4 is fixed to the mounting bracket 2 by buckling or screwing, and is arranged beside the vibration motor 3, and the distance detection member 41 is arranged on the control circuit board 4, which is used to detect the distance between the vibration motor 3. When the driving shaft 32 is subjected to the lateral force F, the vibration motor 3 swings around the mounting portion 31, and the distance between the vibration motor 3 and the control circuit board 4 changes, and the distance detection member 41 is used to detect the distance between the vibration motor 3.

[0037] Specifically, the electric toothbrush provided by the embodiment has a receiving cavity 11 formed in the shell 1 of the handle, and the mounting bracket 2, the vibration motor 3 and the control circuit board 4 are arranged in the receiving cavity 11, the driving shaft 32 of the vibration motor 3 penetrates through the shell 1 to connect the brush head, and the vibration motor 3 drives the brush head to vibrate at a high speed to realize the function of automatically cleaning the teeth. The vibration motor 3 is mounted on the mounting bracket 2 through the mounting portion 31, which is movably or flexibly connected with the mounting bracket 2, when the user presses the brush head against the teeth, the driving shaft 32 is subjected to the lateral force F, the vibration motor 3 swings around the mounting portion 31 relative to the mounting bracket 2, and the distance between the vibration motor 3 and the control circuit board 4 beside the vibration motor 3 changes slightly, and the distance detection member 41 on the control circuit board 4 detects the change of the distance, when the change of the distance detected by the distance detection member 41 exceeds the preset value, the pressure sensing function is triggered and the electric toothbrush is turned on, and according to the change of the distance detected by the distance detection member 41, the lateral force F acting on the driving shaft 32 is converted, that is, the pressure of the brush head pressed against the teeth of the user is indirectly measured. In summary, the electric toothbrush provided by the embodiment has the pressure sensing function, and can automatically turn on the electric toothbrush and measure the pressure of the brush head pressed against the teeth of the user.

[0038] For example, the handle further comprises a first soft rubber member 5, and the mounting portion 31 and the mounting bracket 2 are flexibly connected through the first soft rubber member 5, when the driving shaft 32 is subjected to the lateral force F, part of the first soft rubber member 5 is elastically deformed by being pressed, and another part is elastically deformed by being stretched. Specifically, the first soft rubber member 5 is filled between the peripheral portion and the end portion of the mounting portion 31 and the mounting bracket 2, which not only has the function of connection and fixation, but also can elastically deform to allow the vibration motor 3 to swing, when the vibration motor 3 is pressed to swing, the soft rubber structure towards the swinging direction is pressed, and the soft rubber structure away from the swinging direction is stretched.

[0039] For example, as shown in FIG. 2, the handle further comprises a second soft rubber member 6, which is arranged between the mounting portion 31 and the mounting bracket 2, and the mounting portion 31 and the mounting bracket 2 are flexibly connected through the second soft rubber member 6. Figure 1As shown, the mounting bracket 2 is provided with a first support portion 21 at one end close to the mounting portion 31, and the mounting portion 31 penetrates and is mounted in a mounting groove 211 provided on the first support portion 21. The first soft rubber member 5 is filled in the gap between the outer periphery of the mounting portion 31 and the mounting groove 211. The region of the first soft rubber member 5 far away from the driving shaft 32 deforms relatively less, and the fulcrum and the shaft center of the swinging action of the vibration motor 3 are formed in this region, and the vibration motor 3 can swing around this region.

[0040] In the embodiment, as shown in Figure 1 The mounting portion 31 is arranged on the tail end of the vibration motor 3 away from the driving shaft 32. Specifically, the driving shaft 32 and the mounting portion 31 are respectively arranged at the front and rear ends of the vibration motor 3. The mounting position of the distance detection member 41 on the control circuit board 4 is arranged at one end close to the driving shaft 32. When the driving shaft 32 receives the lateral force F, the shaft center of the swinging action of the vibration motor 3 is located at the mounting portion 31. The distance between the driving shaft 32 and the distance detection member 41 and the mounting portion 31 is large enough. Therefore, the swinging amplitude of the vibration motor 3 is larger, the change amount of the distance between the vibration motor 3 and the distance detection member 41 is larger, and the distance detection member 41 can more easily detect the change amount of the distance between the vibration motor 3 and the control circuit board 4, and more accurately reflect the size of the lateral force F received by the driving shaft 32.

[0041] As shown in Figure 1 As shown, the mounting bracket 2 is provided with a second support portion 22 at one end close to the driving shaft 32, and the second support portion 22 is provided with an avoiding through hole 221 for avoiding the driving shaft 32. The driving shaft 32 penetrates the avoiding through hole 221 and the opening on the shell 1 in sequence and then penetrates out. The body of the vibration motor 3 is flexibly connected with the second support portion 22. When the vibration motor 3 swings under the lateral force F, the vibration motor 3 swings relative to the second support portion 22. The second support portion 22 plays a role of auxiliary supporting the vibration motor 3. The second support portion 22 and the first support portion 21 cooperate with each other to make the support stability of the vibration motor 3 higher.

[0042] As shown, the second soft rubber member 6 is arranged between the body of the vibration motor 3 and the second support portion 22. The vibration motor 3 and the second support portion 22 are flexibly connected through the second soft rubber member 6. Through the second soft rubber member 6, the vibration motor 3 can transmit the acting force to the second support portion 22, so as to avoid damaging the mounting bracket 2.

[0043] For example, the control circuit board 4 is connected to the first support part 21 and the second support part 22. The distance detection element 41 is disposed between the first support part 21 and the second support part 22, and the distance detection element 41 is close to the second support part 22. The swing amplitude of the end of the vibration motor 3 that is closer to the drive shaft 32 is greater, and the detection accuracy of the distance detection element 41 is higher.

[0044] For example, the distance detection element 41 uses distance detection elements such as laser sensors, ultrasonic sensors, and infrared sensors.

[0045] Example 2:

[0046] like Figure 2 As shown, based on Embodiment 1, this embodiment provides another electric toothbrush, which differs from the electric toothbrush provided in Embodiment 1 in that:

[0047] The mounting part 31 is movably connected to the mounting bracket 2. In this embodiment, the mounting part 31 is rotatably connected to the mounting bracket 2. The brush handle also includes a rotating shaft 7. The mounting part 31 is provided with a connecting through hole, and the rotating shaft 7 passes through the connecting through hole. Both ends of the rotating shaft 7 are connected to the mounting bracket 2. When the drive shaft 32 is subjected to a lateral force F, the vibration motor 3 can swing around the rotating shaft 7.

[0048] Specifically, when the vibration motor 3 swings under the lateral force F, it rotates around the drive shaft 32. The vibration motor 3 swings more easily, allowing the deformation detection element to more sensitively detect changes in the distance between the control circuit board 4 and the vibration motor 3, thus more sensitively measuring the pressure of the brush head against the user's teeth. In this embodiment, the first soft rubber component 5 serves to connect and fix the mounting part 31. When the vibration motor 3 rotates around the drive shaft 32, the first soft rubber component 5 provides damping and protects the mounting part 31 from collision damage to the mounting groove 211.

[0049] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electric toothbrush, comprising a handle and a brush head, characterized in that, The brush handle includes a housing (1), within which a receiving cavity (11) is formed, and the brush handle further includes a component disposed in the receiving cavity (11): Mounting bracket (2); The vibration motor (3) has a mounting part (31) and a drive shaft (32). The mounting part (31) is movably or flexibly connected to the mounting bracket (2). The drive shaft (32) extends out of the housing (1) to connect to the brush head. When the drive shaft (32) is subjected to a lateral force F, the vibration motor (3) swings around the mounting part (31). A control circuit board (4) is fixed to the mounting bracket (2), and the control circuit board (4) is spaced apart on the side of the vibration motor (3). The control circuit board (4) is provided with a distance detection element (41), which is used to detect the distance between itself and the vibration motor (3).

2. The electric toothbrush according to claim 1, characterized in that, The brush handle also includes: The first soft rubber component (5) is used to flexibly connect the mounting part (31) and the mounting bracket (2). When the drive shaft (32) is subjected to a lateral force F, a part of the first soft rubber component (5) is squeezed and elastically deformed, and another part is stretched and elastically deformed.

3. The electric toothbrush according to claim 2, characterized in that, The mounting part (31) is located on the vibrating motor (3) at the tail end opposite to the drive shaft (32).

4. The electric toothbrush according to claim 2, characterized in that, At one end near the mounting part (31), the mounting bracket (2) is provided with a first support part (21), and the first support part (21) is provided with a mounting groove (211). The mounting part (31) passes through and is installed in the mounting groove (211). The first soft rubber part (5) fills the gap between the outer periphery of the mounting part (31) and the mounting groove (211).

5. The electric toothbrush according to claim 2, characterized in that, The brush handle also includes: The rotating shaft (7) has a connecting through hole on the mounting part (31). The rotating shaft (7) passes through the connecting through hole. Both ends of the rotating shaft (7) are connected to the mounting bracket (2). When the drive shaft (32) is subjected to a lateral force F, the vibration motor (3) can swing around the rotating shaft (7).

6. The electric toothbrush according to claim 4, characterized in that, At one end near the drive shaft (32), the mounting bracket (2) is provided with a second support part (22), and the second support part (22) is provided with a clearance through hole (221). The clearance through hole (221) is used to avoid the drive shaft (32), and the body of the vibration motor (3) is flexibly connected to the second support part (22).

7. The electric toothbrush according to claim 6, characterized in that, The brush handle also includes: The second soft rubber component (6) is disposed between the body of the vibration motor (3) and the second support part (22), and the vibration motor (3) and the second support part (22) are flexibly connected through the second soft rubber component (6).

8. The electric toothbrush according to claim 6, characterized in that, The control circuit board (4) is connected to the first support part (21) and the second support part (22), and the distance detection element (41) is disposed between the first support part (21) and the second support part (22).

9. The electric toothbrush according to any one of claims 1-8, characterized in that, The distance detection device (41) is one of a laser sensor, an ultrasonic sensor, and an infrared sensor.

10. The electric toothbrush according to any one of claims 1-8, characterized in that, The brush handle also includes: A battery (8) is mounted on the mounting bracket (2) and is electrically connected to the vibration motor (3) and the control circuit board (4) to supply power to the vibration motor (3) and the control circuit board (4).

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