CN219614087U - Pressure induction electric toothbrush - Google Patents

Abstract

The pressure sensing electric toothbrush comprises a handle shell, a control device and a driving device, wherein the control device and the driving device are installed in a cavity in the handle, the control device comprises a circuit board and a shading piece, a controller is arranged on the circuit board and used for controlling the driving device to work, a first sensor is arranged on the circuit board, and a sensing area corresponding to the first sensor and used for triggering the first sensor is arranged on the handle shell; the induction zone comprises a first concave part and a second concave part, the shading piece is provided with a supporting groove, the first inductor is located in the supporting groove, the supporting groove comprises a first supporting bar and a second supporting bar, the first supporting bar and the second supporting bar are respectively propped against the first concave part and the second concave part, and the first supporting bar and the second supporting bar limit the stress range of the induction zone.

Description

Pressure induction electric toothbrush

Technical Field

The utility model relates to the field of oral cavity cleaning, in particular to a pressure sensing electric toothbrush.

Background

Electric toothbrushes are one of the common oral cavity cleaning appliances, and as an improvement of the electric toothbrushes, in order to prevent toothpaste foam and brushing water from easily flowing into the toothbrush main body along gaps of switch keys, a plurality of electric toothbrushes without physical keys are appeared on the market, and the start and stop of the electric toothbrushes are controlled by pressure induction. Most pressure sensing electric toothbrushes are generally formed by integrating a pressure sensing area and a handle, the pressure sensing area deforms after being subjected to pressure, a pressure value is identified by an inductor, and when the pressure value accords with a trigger value, the controller controls the electric toothbrushes to work. However, this design has a certain disadvantage in that, because the pressure sensing area and the handle are integrally formed, when a user applies pressure outside the range of the pressure sensing area, part of the pressure is still transmitted to the pressure sensing area, and the electric toothbrush is easily opened by false touch.

Disclosure of Invention

In order to solve the problems, the utility model adopts the following technical scheme:

the pressure sensing electric toothbrush comprises a handle shell, a control device and a driving device, wherein the control device and the driving device are installed in a cavity in the handle, the control device comprises a circuit board and a shading piece, a controller is arranged on the circuit board and used for controlling the driving device to work, a first sensor is arranged on the circuit board, and a sensing area corresponding to the first sensor and used for triggering the first sensor is arranged on the handle shell; the induction zone comprises a first concave part and a second concave part, the shading piece is provided with a supporting groove, the first inductor is located in the supporting groove, the supporting groove comprises a first supporting bar and a second supporting bar, the first supporting bar and the second supporting bar are respectively propped against the first concave part and the second concave part, and the first supporting bar and the second supporting bar limit the stress range of the induction zone.

According to one embodiment of the present utility model, the first sensor is provided with an elastic soft rubber for elastically connecting the sensing area and the circuit board.

According to one embodiment of the utility model, the support slot is sized to accommodate the size of the sensing region.

According to one embodiment of the utility model, the sensing area is recessed towards the accommodating cavity of the brush handle and has a certain deformation space.

According to one embodiment of the utility model, the driving device comprises a supporting bracket, a driving motor and a battery, wherein the supporting bracket is used for fixing the driving motor and the battery, the circuit board and the shading piece are fixedly arranged on the supporting bracket, and the supporting bracket is clamped with the inner wall of the holding cavity of the handle and cannot rotate.

According to one embodiment of the utility model, the driving motor comprises a motor shaft, a motor front cover and a motor rear cover, the driving motor is fixed on the supporting bracket in a screw fixing or clamping mode, and the supporting bracket is provided with a pressing space in the direction of the motor rear cover relative to the circuit board.

According to one embodiment of the utility model, the motor front cover comprises a supporting part, the motor rear cover comprises a deformation part and an induction touch part, at least part of the induction touch part is connected with the deformation part, and when the deformation part deforms and deflects, the induction touch part is driven to move.

According to one embodiment of the utility model, a second sensor is arranged on one side of the circuit board, the second sensor is connected with a controller on the circuit board, and a pressing gap is reserved between the sensing touch part and the second sensor.

According to one embodiment of the utility model, when the sensing touch part is abutted with the second sensor, the controller sends out a limit alarm program to remind a user to relieve tooth brushing pressure and avoid gum injury.

According to one embodiment of the utility model, a third sensor is further installed on the controller, and the third sensor is electrically connected with the controller and is used for detecting the control state of the handle;

and at least one output device, the output device is electrically connected to the controller, when the handle is detected to be in a non-holding state or holding state, the controller controls the output device to output at least one sleep prompt or wake prompt;

when the third sensor detects that the handle is in a non-holding state, the sensing area is dormant, and the sensing area is in a dormant state; when the third sensor detects that the handle is in a holding state, the sensing area is awakened, and the sensing area is in an awakening state.

Drawings

1-handle, 10-handle housing, 11-front side, 12-rear side, 13-sensing zone, 131 first recess, 132-second recess; 14-a bottom cover, 15-a first decorative ring, 16-a second decorative ring;

2-brush head, 21-brush handle;

3-control device, 30-controller, 31-elastic soft rubber, 32-shading piece, 33-circuit board, 34-output device, 320-supporting groove, 321-first supporting bar, 322-second supporting bar, 330-first sensor, 331-second sensor, 332-third sensor;

4-driving device, 40-supporting bracket, 41-driving motor, 42-battery, 400-coil frame, 410-motor shaft, 411-motor front cover, 412-motor back cover, 413-damping soft rubber, 414-waterproof ring, 4110-supporting part, 4120-deformation part, 4121-sensing touch part;

FIG. 1 is a perspective view of a pressure sensing electric toothbrush of the present utility model;

FIG. 2 is a schematic view of a pressure sensing electric toothbrush according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a pressure sensitive electric toothbrush of the present utility model;

FIG. 4 is an exploded view of a pressure sensitive electric toothbrush of the present utility model;

FIG. 5 is an enlarged schematic view of the structure of a first sensor of a pressure sensing electric toothbrush according to the present utility model;

FIG. 6 is an enlarged schematic view of the structure of a second sensor of the pressure sensing electric toothbrush of the present utility model;

FIG. 7 is a schematic view of a driving motor of a pressure sensing electric toothbrush according to the present utility model;

fig. 8 is a schematic flow chart of a pressure sensing electric toothbrush with wake-up prompt according to the present utility model.

Detailed Description

The following description is presented to enable one of ordinary skill in the art to make and use the utility model. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art. The embodiments of the utility model described below and shown in the drawings are by way of example only and are not limiting. Any variations or modifications may be made to the embodiments of the utility model without departing from the principles.

Referring to fig. 1 to 8, the present utility model provides an electric toothbrush comprising a handle 1 and a brush head 2 secured to the handle. The handle 1 comprises a handle housing 10, a control device 3 and a drive device 4 mounted inside the handle.

Referring to fig. 3-4, the handle housing 10 has opposite front and rear sides 11, 12 with a sensing region 13 on the front side, the sensing region 13 being recessed toward the housing rear side 12, the sensing region including a first recess 131 and a second recess 132. The induction area 13 has a certain deformation space, and the induction area 13 is provided with a switch mark, so that the user can conveniently recognize and press the switch mark.

The control device 3 comprises a circuit board 33, which circuit board 33 is mounted on the side of the support bracket 40 facing the front side 11 of the housing. The circuit board 33 is electrically connected to the driving motor 41, and a controller 30 (not shown) is disposed on the circuit board 33 for controlling the driving motor 41 to operate.

The driving device 4 comprises a supporting bracket 40, a driving motor 41 and a battery 42, the supporting bracket 40 is used for fixing the driving motor 41 and the battery 42, the shading piece 32 and the circuit board 33 are fixedly installed on the supporting bracket 40, and the supporting bracket 40 is clamped with the inner wall of the handle accommodating cavity and cannot rotate. This design prevents the sensor area 13 from being identified as insensitive due to the displacement of the sensor area 13 when the drive device 4 is in operation.

The circuit board 33 is provided with a first sensor 330, and the first sensor 330 is provided with an elastic soft rubber 31 for elastically connecting the sensing area 13 and the circuit board 33 to sense the pressure generated by the sensing area 13. The elastic soft rubber 31 is always abutted against the sensing area 13 and the first sensor 330, so as to prevent the sensing area 13 on the housing 11 from failing to identify pressure caused by falling off in the vibration process of the driving device 4.

When the toothbrush is used, the sensing area 13 is only required to be slightly pressed, so that the elastic soft rubber 31 which is in contact with the sensing area is slightly deformed, the first sensor 330 is triggered to realize the switching action, and the circuit board 33 can be controlled to send different instructions by applying different pressures so as to enable the driving device 4 to switch different modes. Equivalently, the toothbrush can be started and shut down through pressure control, and mode selection can also be performed through pressure, and the sensing area integrates the functions of starting and shutting down and mode selection, so that the integration degree is high.

For example, when the toothbrush is in a power-off state, the first sensor 330 on the circuit board 33 recognizes that the sensing area 13 on the housing 10 is stressed, calculates a pressure value and sends the pressure value to the controller 30 on the circuit board 33, and if the controller 30 determines that the pressure value meets the trigger pressure threshold, a power-on signal is sent to the driving motor 41 to control the driving motor 41 to start up, the brush head 2 vibrates, and the toothbrush is in a power-on working state; when the toothbrush is in a power-on state, the first sensor 330 on the circuit board 33 recognizes the stress of the sensing area 13 on the housing 10, calculates a pressure value and sends the pressure value to the controller 30 on the circuit board 33, and the controller 30 determines that the pressure value meets the trigger pressure threshold, sends a power-off signal to the driving motor 41 to control the driving motor 41 to power off, the brush head 2 stops vibrating, and the toothbrush enters a power-off state.

The control device 3 further comprises a light shielding member 32, the light shielding member 32 is mounted above the circuit board 33 and extends along the direction of the circuit board 33, the light shielding member 32 is provided with a supporting groove 320 facing the direction of the front side 11 of the housing, the first inductor 330 is located in the supporting groove 320, the supporting groove 320 comprises a first supporting bar 321 and a second supporting bar 322, the first supporting bar 321 and the second supporting bar 322 respectively support against the first concave portion 131 and the second concave portion 132 of the sensing area, the size of the supporting groove 320 is the same as the size of the sensing area 13, and the first supporting bar 321 and the second supporting bar 322 limit the stress range of the sensing area 13. In this way, when the user applies pressure to the handle housing 10 at the edge of the sensing range of the sensing area 13 or beyond the range away from the sensing area 13, the applied pressure or the deformation of the handle housing 10 cannot be transmitted to the elastic soft rubber 31 and thus to the first sensor 330 due to the first support bar 321 and the second support bar 322 abutting against the sensing area 13. Thus, not only the switching accuracy of the sensing area 13 is maintained, but also the damage of the circuit board 33 caused by the false touch and excessive deformation of the sensing area 13 in the use process can be avoided.

In another embodiment of the present utility model, an infrared sensor (not shown) may be further disposed inside the sensing area 13, and the infrared sensor may sense whether an object is near the sensing area 13. For example, when the user holds the handle 1 and brings the thumb close to the sensing area 13, the thumb is recognized by the infrared sensor; at this time, if the user further applies pressure to the sensing area 13, the controller determines that the pressure value meets the trigger pressure threshold, and sends a start signal to the driving motor 41 to control the driving motor 41 to start, the toothbrush head 2 vibrates, and the toothbrush is in a start working state; when the infrared sensor identifies an object, the first pressure sensor 330 does not identify that the pressure or the pressure does not reach the trigger pressure threshold, and the controller 30 determines that the pressure value does not meet the trigger pressure threshold, then sends a false touch signal to the driving motor 41, and controls the driving motor 41 to maintain the off state, and the toothbrush keeps the off state.

The circuit board 33 is further provided with indicator lamps with different gears, and the indicator lamps are used for displaying different cleaning modes. The position of the shading piece 32 corresponding to the indication lamp of the circuit board 33 is provided with a hole groove for shading scattered light emitted by the indication lamp of the circuit board 33, the indicator light is prevented from being led through the handle shell 10, so that the use experience of a user is improved.

Referring to fig. 6-7, the driving motor 41 includes a motor shaft 410, a motor front cover 411, and a motor rear cover 412, the driving motor 41 is fixed to the support bracket 40 in a screw fixing or clamping manner, the support bracket 40 has a pressing space relative to the circuit board 33 at the motor rear cover 412, the motor shaft 410 is connected with the brush head 2, and the driving motor 41 is used for driving the brush head 2 to work. The motor front cover 411 has a supporting portion 4110 that is vertically symmetrical, the motor rear cover 412 includes a deformation portion 4120 and an induction touch portion 4121, at least a portion of the induction touch portion 4121 is connected to the deformation portion 4120, and when the deformation portion 4120 is deformed and shifted, the induction touch portion 4121 is driven to move. The deformation portion 4120 and the side of the circuit board 33 facing the handle rear side portion 12 or the side of the driving motor 41 close to the circuit board 33 are provided with a second sensor 331, the second sensor 331 is connected to the controller 30 on the circuit board 33, and a pressing gap is left between the sensing touch portion 4121 and the second sensor 331.

When the toothbrush is used, when the brush head 2 is stressed greatly, the brush handle 21 deflects relative to the handle 1, the motor shaft 410 connected with the brush handle 21 is driven to deform and deflect, the motor shaft 410 takes the supporting part 4110 on the motor front cover as a support, the deformation part 4120 of the motor rear cover 412 is pried to deform, the sensing touch part 4121 is triggered to abut against the second sensor 331, and the controller 30 sends out a limit alarm program to remind a user to lighten the brushing pressure and avoid gum damage.

A third sensor (not shown) is also mounted on the toothbrush, and is electrically connected with the controller 30, and the third sensor is used for detecting the control state of the handle 1; and at least one output device (not shown) 34, wherein the output device 34 is electrically connected to the controller 30, and the controller 30 controls the output device 34 to output at least one sleep prompt or wake prompt when the handle 1 is detected to be in the non-holding state or the holding state.

When the third sensor detects that the handle 1 is in a non-holding state, the sensing area 13 is dormant, and the sensing area 13 is in a dormant state; when the third sensor detects that the handle 1 is in the holding state, the sensing area 13 is awakened, and the sensing area 13 is in the awakened state.

The third sensor detects the state of the handle 1 and generates at least one corresponding output value, and the third sensor judges whether the handle is in a holding state or a non-holding state according to the output value.

In the embodiment of the utility model, the third sensor is implemented as a sensing copper sheet and is used for detecting the approaching condition of an object at the handle 1 so as to feed back the state of the handle. For example, the sensing copper sheet is mounted on the support bracket 40, and the third sensor emits a corresponding working signal when it is detected that the user holds the handle 1.

The third sensor detects whether the handle 1 is held for a certain period of time to determine whether the toothbrush is in a non-held or held state.

The third sensor detects the holding condition of the handle and generates at least one output value of the third sensor. When the third sensor detects that no output value is generated by the handle 1, it is determined that the handle is in a non-holding state, the sensing area 13 is dormant, the first sensor 330 cannot identify the pressure generated by the sensing area 13, and at this time, pressing the sensing area 13 cannot start the toothbrush to enter a working state. When the third sensor detects that the handle 1 generates an output value, it is determined that the toothbrush is in a holding state, the sensing area 13 is awakened, the first sensor 330 can identify the pressure generated by the sensing area 13, and the output value of the pressure of the sensing area 13 meets a set threshold value, so that the toothbrush enters a working state.

For example, after the user uses the toothbrush, the user may place the toothbrush at a position where a toothbrush cup, a rack, a washing table, etc. are placed, at this time, if the user does not hold the handle, but directly presses the sensing area 13, the third sensor does not generate an output value, and then the third sensor determines that the toothbrush is in a non-holding state, and at this time, pressing the sensing area 13 cannot start the toothbrush to enter a working state.

The third sensor maintains detection of the handle condition when the toothbrush is in a non-gripping condition. When the handle 1 is held, the third sensor sends a corresponding signal to the controller 30, informing the controller 30 to control the sensing area 13 and the first sensor 330 to enter a normal working state, the sensing area 13 is awakened, and the first sensor 330 can identify the pressure generated by the sensing area 13 so as to allow the toothbrush to enter the working state.

The holding posture and angle of the toothbrush can be set to be various according to actual brushing conditions. For example, the holding posture of the user can be transverse holding, namely the toothbrush is parallel to teeth, so that the transverse cleaning of the tooth surfaces is facilitated; or the holding posture can be inclined holding, and the toothbrush and teeth have a certain inclined angle, so that the tooth ravines can be cleaned conveniently.

When the handle is in a non-gripping or gripping state, the controller 30 controls the toothbrush to make a corresponding sleep or wake indication. The controller 30 controls the output device 34 to send a sleep or wake-up instruction of the sensing area 13, and interact with the user to enhance the user experience. In one example of the present utility model, the output 34 is implemented as a light emitting device, which may be an indicator light, a breathing light, a power indicator light, a screen, etc. of the toothbrush to which the toothbrush is mounted. The controller 30 controls the non-holding or holding indication sent by the output device 34 to be a light, a flashing light, a specific color light, or a screen indicator light, so that the user can judge that the toothbrush is in a non-holding or holding state. In another example of the present utility model, the output 34 is implemented as a motor, for example, the controller 30 controls the driving motor to vibrate, prompting the user to enter the toothbrush into a non-gripping or gripping state.

It will be appreciated that the non-gripping cues and the gripping cues may be provided in different forms depending on the particular needs and functional settings, for the user to discern the status of the toothbrush.

The tooth brushing working principle of the pressure sensing electric toothbrush is as follows: when the user picks up the toothbrush and holds the handle 1, the third sensor judges that the toothbrush is held, the third sensor outputs a signal to the controller 30, the sensing area 13 is awakened, the tooth brushing indicator lights are lightened, when the user further applies pressure to the sensing area 13, the controller 30 judges that the pressure value accords with the trigger pressure threshold, a starting signal is sent to the driving motor 41, the driving motor 41 is controlled to start, the toothbrush head 2 vibrates, and the toothbrush is started in a working state; if the pressure does not reach the trigger pressure threshold, the controller 30 determines that the pressure value does not meet the trigger pressure threshold, and sends a false touch signal to the driving motor 41 to control the driving motor 41 to maintain the off state, and the toothbrush maintains the off state. The user can be according to the intelligent recognition and toothbrush production interaction of non-holding and holding suggestion and forced induction, has new user experience, and the convenience of customers knows the toothbrush state, can avoid the inconvenience that the mistake touches the open toothbrush simultaneously and brings.

The third sensor determines the state of the handle 1 in time, that is, when the third sensor determines that the handle 1 is in the holding state, the sensing area is awakened.

The sensing area 13 is integrally formed with the handle housing 10 and is made of the same material for easy processing, alternatively, the housing 10 is a cylindrical structure made of a material such as resin, metal or plastic.

The motor rear cover 412 is further provided with a fixing soft rubber facing the side of the handle rear side 12, and the fixing soft rubber is propped against the handle rear side 12 to fix the driving motor 41, so as to prevent the driving motor 41 from deflecting and shaking in the handle accommodating cavity.

The driving motor 41 is also provided with a damping soft rubber 413 and a waterproof ring 414, the damping soft rubber 413 is arranged on the motor front cover 410, so that vibration force generated between the driving motor 41 and the supporting bracket 40 during working is relieved, and noise generated during the working of the toothbrush is further reduced; the waterproof ring 414 is connected to the junction between the handle housing 10 and the toothbrush handle 21 to prevent liquid from penetrating into the housing from the junction between the housing 10 and the toothbrush head 21, thereby affecting the normal use of the electronics in the housing.

The handle 1 further comprises a bottom cover 14, the bottom cover 14 being mounted on the handle 1 for sealing the handle. The bottom cover 14 is further provided with a ventilation valve for improving the problem of gas generation during the discharge of the battery.

The support bracket 40 further comprises a coil frame 400, wherein a charging coil is wound on the coil frame 400 and is fixed on the support bracket 40, and the coil can charge the battery 42 by using a wireless charging technology.

The handle 1 further comprises a first decoration ring 15 and a second decoration ring 16, and the decoration rings are used for decorating the handle 1, so that the joint of the brush head 2 and the handle is smoother and more natural, and the appearance attractiveness of the toothbrush is improved.

Finally, the foregoing embodiments are merely illustrative of the present utility model and are not intended to be limiting, and the technical features of each of the embodiments may be modified or substituted or combined with each other, and any technical solutions not departing from the principles of the present utility model should be included in the scope of the present utility model.

Claims (10)

1. The pressure sensing electric toothbrush is characterized by comprising a handle shell, a control device and a driving device, wherein the control device and the driving device are installed in a cavity in the handle, the control device comprises a circuit board and a shading piece, a controller is arranged on the circuit board and used for controlling the driving device to work, a first sensor is arranged on the circuit board, and a sensing area corresponding to the first sensor and used for triggering the first sensor is arranged on the handle shell;

the induction zone comprises a first concave part and a second concave part, the shading piece is provided with a supporting groove, the first inductor is located in the supporting groove, the supporting groove comprises a first supporting bar and a second supporting bar, the first supporting bar and the second supporting bar are respectively propped against the first concave part and the second concave part, and the first supporting bar and the second supporting bar limit the stress range of the induction zone.

2. The pressure sensing electric toothbrush of claim 1, wherein the first sensor is provided with an elastic soft rubber for elastically connecting the sensing area and the circuit board.

3. The pressure sensitive electric toothbrush of claim 2, wherein the support slot is sized to accommodate the size of the sensing region.

4. The pressure sensing electric toothbrush of claim 1, wherein the sensing area is recessed in the cavity and has a deformation space.

5. The pressure sensing electric toothbrush of claim 1, wherein the drive device comprises a support bracket, a drive motor and a battery, wherein the support bracket is used for fixing the drive motor and the battery, the circuit board and the shading piece are fixedly arranged on the support bracket, and the support bracket and the inner wall of the holding cavity of the handle are clamped and cannot rotate.

6. The pressure-sensitive electric toothbrush according to claim 5, wherein the driving motor comprises a motor shaft, a motor front cover and a motor rear cover, the driving motor is fixed to the support bracket in a screw-fixing or snap-fitting manner, and the support bracket has a pressing space in a direction of the motor rear cover with respect to the circuit board.

7. The pressure sensing electric toothbrush of claim 6, wherein the motor back cover comprises a deformation portion and a sensing touch portion, wherein at least part of the sensing touch portion is connected with the deformation portion, and the deformation portion is deformed and deflected to drive the sensing touch portion to move.

8. The pressure sensing electric toothbrush of claim 7, wherein a second sensor is disposed on one side of the circuit board, the second sensor is connected to a controller on the circuit board, and a pressing gap is left between the sensing touch portion and the second sensor.

9. The pressure sensitive electric toothbrush of claim 8, wherein when the sensing touch portion is in contact with the second sensor, the controller sends a limit alarm program to remind the user to reduce brushing pressure and avoid gum damage.

10. The pressure sensing electric toothbrush of claim 1, wherein a third sensor is further mounted on the controller, the third sensor being electrically connected to the controller, the third sensor being configured to detect a control state of the handle;

and at least one output device, the output device is electrically connected to the controller, when the handle is detected to be in a non-holding state or holding state, the controller controls the output device to output at least one sleep prompt or wake prompt;

when the third sensor detects that the handle is in a non-holding state, the sensing area is dormant, and the sensing area is in a dormant state; when the third sensor detects that the handle is in a holding state, the sensing area is awakened, and the sensing area is in an awakening state.