CN214805615U

CN214805615U - Electric toothbrush

Info

Publication number: CN214805615U
Application number: CN202120307182.2U
Authority: CN
Inventors: 吕煌; 江涌; 陈越; 李建明; 管弦
Original assignee: Quanzhou Archie Technology Co ltd
Current assignee: Quanzhou Archie Technology Co ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-11-23
Anticipated expiration: 2031-02-03

Abstract

The utility model discloses an electric toothbrush, which controls a magnetic resistance sensor positioned in a main body to generate corresponding electric signals through the change of a magnetic field of a movable mechanism comprising a magnetic part; thereby controlling the starting and stopping of the electric toothbrush and adjusting the strength of the electric toothbrush; the problem of solve, adopt hall sensor as the inductive element of electric toothbrush among the prior art has more defects, for example: the power consumption of the Hall sensor is large, and the battery endurance time of the electric toothbrush is reduced; the sensitivity of the Hall sensor is low, so that weak signals are difficult to detect, and the user experience is poor; and the direction of the Hall element sensing magnetic field is vertical to the upper surface of the Hall element, so that the detection range is small, and the integral design of the electric toothbrush is not facilitated.

Description

Electric toothbrush

Technical Field

The utility model relates to the technical field of household appliances, in particular to an electric toothbrush.

Background

The electric toothbrush makes the brush head generate high-frequency vibration through the quick rotation or vibration of the motor core, instantaneously decomposes the toothpaste into fine foam to deeply clean teeth gaps, and meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massage effect on gum tissues.

Chinese utility model with publication number CN211985762U discloses a novel electrodeless speed governing electric toothbrush of hall on-off control, through setting up the hall inductor, at the in-process of brushing teeth, promote the push pedal and make the magnetic block slide at the upper surface of hall inductor, the magnetic field that utilizes the slip messenger magnetic block and hall inductor between changes, the hall inductor turns into output voltage's change and gives the circuit board with electric signal transmission with the magnetic field that changes, adjust the output parameter of motor through the circuit board, thereby modify the turning strength of motor, realized that the user independently modifies the gear output dynamics of brushing teeth in certain extent.

Chinese utility model patent publication No. CN211610164U discloses a waterproof electric toothbrush, which comprises a handle and a waterproof control assembly disposed on the handle; the waterproof control assembly comprises a Hall switch arranged inside the handle and an adjusting piece arranged outside the handle; the adjusting element is used to trigger the hall switch. This waterproof electric toothbrush passes through the start-up and the shutdown of regulating part and the cooperation control waterproof electric toothbrush of hall switch, need not to set up on the handle with button complex through-hole to avoided outside water to get into the problem that causes the damage to the components and parts in the handle behind the handle.

Both of the above-mentioned prior arts use a hall element as an induction element, and a voltage of the hall element is changed by a magnetic field change of an external magnet, thereby controlling the electric toothbrush. However, the prior art using hall sensors as sensing elements of electric toothbrushes has many drawbacks, such as: the power consumption of the Hall sensor is large, and the battery endurance time of the electric toothbrush is reduced; the sensitivity of the Hall sensor is low, so that weak signals are difficult to detect, and the user experience is poor; and the direction of the Hall element sensing magnetic field is vertical to the upper surface of the Hall element, so that the detection range is small, and the integral design of the electric toothbrush is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric toothbrush, which controls a magnetic resistance sensor positioned in a main body to generate corresponding electric signals through the change of a magnetic field of a movable mechanism comprising a magnetic part; thereby controlling the start and stop of the electric toothbrush and adjusting the force of the electric toothbrush.

The above technical purpose of the utility model is realized through following technical scheme:

an electric toothbrush comprising a body, a brushhead, and a control assembly; the control assembly comprises a movable mechanism and a magnetic resistance sensor which are matched with each other; the magnetoresistive sensor is positioned in the body; the movable mechanism comprises a magnetic part; and, the magnetic site is located outside the body; the body is a sealed body; the movable mechanism comprises a sliding track arranged on the peripheral surface of the main body; the sliding track is arranged opposite to the magnetic resistance sensor; the magnetic part is in sliding fit with the sliding track.

By adopting the structure, the magnetic resistance sensor positioned in the main body is controlled to generate corresponding electric signals through the change of the magnetic field of the movable mechanism comprising the magnetic part; thereby controlling the starting and stopping of the electric toothbrush and adjusting the strength of the electric toothbrush; by adopting the structure, the main body is sealed, a through hole for opening and closing and adjusting is not required to be arranged on the main body, and the waterproof performance of the electric toothbrush is enhanced. By adopting the structure, the magnetic field of the magnetic part is changed by the magnetic part in a sliding mode relative to the main body, the magnetic resistance sensor receives the change of the magnetic field to generate voltage change, and the electric toothbrush executes corresponding operation.

The sliding track is further optimized to be provided with a sliding switch part and a sliding adjusting part; the sliding switch part is used for controlling the starting and stopping of the motor of the electric toothbrush; the sliding adjusting part is used for adjusting the force of the motor of the electric toothbrush.

With the structure, when the magnetic part slides to the sliding switch part, the motor of the electric toothbrush executes the starting or stopping operation; when the adjusting assembly slides to the sliding adjusting part, the motor of the electric toothbrush performs an operation of adjusting the output power.

Preferably, the slide rail is a linear slide rail, and the slide switch unit and the slide adjustment unit are linearly arranged.

By adopting the structure, the electric toothbrush can be operated by the sliding of a single finger through the linear sliding track, the linearly arranged sliding switch part and the sliding adjusting part, and the operation is convenient and fast.

Further preferably, the magnetic part is in running fit with the main body, and the magnetic part and the magnetic resistance sensor are arranged oppositely.

By adopting the structure, the magnetic field of the magnetic part is changed by the magnetic part in a mode of rotating relative to the main body, the magnetic resistance sensor receives the change of the magnetic field to generate a corresponding electric signal, and the electric toothbrush executes corresponding operation.

Preferably, the magnetic part is at least one of a magnet and a magnetic knob.

Adopt above-mentioned structure, the magnetism knob is through setting up magnet in inside, and the magnetic field change of magnetoresistive sensor response magnet sends corresponding signal of telecommunication to electric toothbrush's controller, and the controller is according to signal of telecommunication control electric toothbrush's function, and magnetism knob technical maturity can be applicable to the condition that magnetism portion and main part rotated relatively better, is fit for as electric toothbrush's magnetism portion.

Further optimized, the magneto-resistive sensor is a sensor comprising at least one of an anisotropic magneto-resistive sensor (AMR), a giant magneto-resistive sensor (GMR), a tunneling magneto-resistive sensor (TMR).

It is further optimized that the magneto-resistive sensor is an integrated circuit comprising at least one of an anisotropic magneto-resistive sensor, a giant magneto-resistive sensor, a tunneling magneto-resistive sensor.

To sum up, the utility model discloses following beneficial effect has: the utility model provides an electric toothbrush, which controls a magnetic resistance sensor positioned in a main body to generate corresponding electric signals through the change of a magnetic field of a movable mechanism comprising a magnetic part; thereby controlling the starting and stopping of the electric toothbrush and adjusting the strength of the electric toothbrush; the problem of solve, adopt hall sensor as the inductive element of electric toothbrush among the prior art has more defects, for example: the power consumption of the Hall sensor is large, and the battery endurance time of the electric toothbrush is reduced; the sensitivity of the Hall sensor is low, so that weak signals are difficult to detect, and the user experience is poor; and the direction of the Hall element sensing magnetic field is vertical to the upper surface of the Hall element, so that the detection range is small, and the integral design of the electric toothbrush is not facilitated.

Drawings

Fig. 1 is a schematic view of an electric toothbrush according to an embodiment of the present invention, which is mainly used for explaining a slide rail and a magnetic portion.

Fig. 2 is a schematic view of an electric toothbrush according to an embodiment of the present invention, which is mainly used for explaining a slide rail and a magnetic resistance sensor.

Fig. 3 is a schematic view of an electric toothbrush according to an embodiment of the present invention, mainly illustrating a magnetic portion.

Fig. 4 is a schematic view of the electric toothbrush according to the embodiment of the present invention, which is mainly used for explaining the magnetic part and the magnetic resistance sensor.

Reference numerals: 1. a main body; 2. a brush head; 3. a movable mechanism; 301. a magnetic part; 302. a sliding track; 4. a magnetoresistive sensor; 5. a slide switch section; 6. a slide adjusting section; 7. a circuit board; 8. angle scale lines; 9. and marking lines.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. It is noted that the present invention is described in the following with reference to exemplary embodiments, however, it is to be understood that structures, features of different embodiments may be advantageously combined without further mention. Moreover, the terms "first," "second," and the like are used for convenience of description only and are not to be construed as indicating or implying a relative order or relative importance.

Example 1

As shown in fig. 1 to 4, an electric toothbrush includes a body 1, a head 2, and a control assembly; the control component comprises a movable mechanism 3 and a magnetic resistance sensor 4 which are matched with each other; the magnetoresistive sensor 4 is located within the body 1; the movable mechanism 3 includes a magnetic portion 301. Controlling the magnetoresistive sensor 4 positioned in the main body 1 to generate a corresponding electric signal through the change of the magnetic field of the movable mechanism 3 comprising the magnetic part 301; thereby controlling the start and stop of the electric toothbrush and adjusting the force of the electric toothbrush.

Preferably, the magnetic part 301 is located outside the body 1; the body 1 is a sealed body. The main body 1 is sealed, and a through hole for opening and closing and adjusting is not required to be arranged on the main body 1, so that the waterproof performance of the electric toothbrush is enhanced.

Example 2

The present embodiment is mainly used to explain the specific structure of the movable mechanism 3.

As shown in fig. 1 and 2, in an embodiment of the present invention, the movable mechanism 3 includes a sliding rail 302 disposed on an outer circumferential surface of the main body 1; the slide rail 302 is disposed opposite to the magnetoresistive sensor 4; the magnetic part 301 is slidably engaged with the slide rail 302. The magnetic part 301 changes the magnetic field of the magnetic part in a sliding manner relative to the main body 1, the magnetic resistance sensor 4 receives the change of the magnetic field, corresponding electric signals are generated, and the electric toothbrush executes corresponding operation according to the electric signals.

Preferably, the sliding track 302 is provided with a sliding switch part 5 and a sliding adjusting part 6; the sliding switch part 5 is used for controlling the starting and stopping of the motor of the electric toothbrush; the sliding adjusting part 6 is used for adjusting the force of the motor of the electric toothbrush. When the magnetic part 301 slides to the sliding switch part 5, the motor of the electric toothbrush performs a start or stop operation; when the magnetic part 301 slides to the slide adjusting part 6, the motor of the electric toothbrush performs an operation of adjusting the output power.

Further, the slide rail 302 is a linear slide rail, and the slide switch unit 5 and the slide adjusting unit 6 are linearly arranged. Through the linear sliding track 302, the linear arrangement of the sliding switch part 5 and the sliding adjustment part 6, the electric toothbrush can be operated by the sliding of a single finger, and the operation is convenient and fast.

Specifically, the electric toothbrush main body 1 is provided with a mark visible to the user, and the mark separates the sliding switch portion 5 from the sliding adjustment portion 6, so as to assist in prompting the position of the magnetic portion 301 of the user, and improve the user experience.

As shown in fig. 3 and 4, in another embodiment of the present invention, the magnetic part 301 is rotatably engaged with the main body 1, and the magnetic part 301 is disposed opposite to the magnetoresistive sensor 4. The magnetic part 301 changes the magnetic field of the magnetic part 301 in a manner of rotating relative to the main body, the magnetoresistive sensor 4 receives the change of the magnetic field, generates a corresponding electric signal, and the electric toothbrush performs a corresponding operation according to the electric signal.

Preferably, the magnetic part 301 is at least one of a magnet and a magnetic knob. Magnetism knob is through setting up magnet in inside, and magnetic field of magnetoresistive sensor response magnet changes, produces corresponding signal of telecommunication, and electric toothbrush basis corresponding operation is carried out to the signal of telecommunication, and magnetism knob technology is mature, can be applicable to the relative pivoted condition of magnetism portion 301 and main part 1 better, is fit for as electric toothbrush's magnetism portion 301.

Specifically, the magnetic part may be fixedly connected to the main body by a connecting shaft, or detachably mounted by an attracting magnet (not shown in the figure).

In the present embodiment: the magnetic part 30 determines the rotation angle of the magnetic part 301 through an angle display structure. The angle display structure comprises angle scale marks 8 arranged at the edge of the magnetic part 301 and mark lines 9 arranged on the main body, and in the rotating process of the magnetic part 301, a user can judge the rotating angle of the magnetic part 301 according to the range of the angle scale marks 8 pointed by the mark lines 9.

It will be readily understood that the magnetic part 301 can also slide and rotate with respect to the body 1, and that the technical features of the two embodiments described above can be combined.

Example 3

The present embodiment is mainly used to explain the magnetoresistive sensor 4.

Preferably, the magneto-resistive sensor 4 is a sensor comprising at least one of an anisotropic magneto-resistive sensor, a giant magneto-resistive sensor, a tunneling magneto-resistive sensor.

Further, the magneto-resistive sensor 4 is an integrated circuit comprising at least one of an anisotropic magneto-resistive sensor, a giant magneto-resistive sensor, a tunneling magneto-resistive sensor.

As will be appreciated by those skilled in the art: the magneto resistive sensor 4 is mounted on a support structure 7, which support structure 7 may be a circuit board or other mechanical structure.

The utility model discloses a magnetic resistance sensor's among the electric toothbrush theory of operation: first, AMR, GMR, TMR have higher sensitivity than hall, where AMR induces about 30mV, GMR induces about 120mV, TMR induces about 1000mV, and hall is about 0.5mV for every 1mT (millitesla) of external magnetic field. Therefore, AMR, GMR and TMR can sense the change of the magnetic field more sensitively than Hall, and can capture the operation of a user better, so that the electric toothbrush is more sensitive.

Secondly, the direction of the Hall sensor sensing magnetic field is vertical to the upper surface of the chip, which may cause the problem of the position arrangement of the sensor, and the detection range is small. AMR, GMR and TMR perception magnetic field are on a parallel with the chip direction, and the restriction that puts and receive is less relatively, and detection range is big, can do littleer with functional magnet, is favorable to electric toothbrush's global design.

Thirdly, the resistance of the TMR is about 1M ohm, which is one thousand times of the resistance of the Hall sensor, so that the current of the TMR is far smaller than that of the Hall sensor for the same voltage, and the power consumption is lower; AMR and GMR are lower than Hall, and the battery endurance time of the electric toothbrush can be prolonged by adopting the magnetic resistance sensor.

The utility model discloses an electric toothbrush's use: the user adjusts the position and/or angle of the magnetic part 301 by rotating and/or sliding, the magnetic field of the magnetic part 301 is changed, the magnetic resistance sensor 4 receives different magnetic fields to generate different electric signals, and the electric toothbrush executes corresponding operation according to the electric signals.

The above description is only an example of some specific embodiments of the present invention, and obviously, without departing from the principles of the present invention, any re-creation performed by the method disclosed in the present invention by those skilled in the art is also within the protection scope of the present invention.

Claims

1. An electric toothbrush characterized by: comprises a main body, a brush head and a control component; the control assembly comprises a movable mechanism and a magnetic resistance sensor which are matched with each other; the magnetoresistive sensor is positioned in the body; the movable mechanism comprises a magnetic part;

and, the magnetic site is located outside the body; the body is a sealed body; the movable mechanism comprises a sliding track arranged on the peripheral surface of the main body; the sliding track is arranged opposite to the magnetic resistance sensor; the magnetic part is in sliding fit with the sliding track.

2. The electric toothbrush of claim 1, wherein: the sliding track is provided with a sliding switch part and a sliding adjusting part; the sliding switch part is used for controlling the starting and stopping of the motor of the electric toothbrush; the sliding adjusting part is used for adjusting the force of the motor of the electric toothbrush.

3. The electric toothbrush of claim 2, wherein: the sliding rail is a linear sliding rail, and the sliding switch part and the sliding adjusting part are linearly arranged.

4. The electric toothbrush of claim 1, wherein the magnetic portion is rotationally engaged with the body, the magnetic portion being disposed opposite the magnetoresistive sensor.

5. The electric toothbrush of claim 4, wherein: the magnetic part is at least one of a magnet and a magnetic knob.

6. The electric toothbrush of claim 1, wherein: the magnetoresistive sensor is a sensor including at least one of an anisotropic magnetoresistive sensor, a giant magnetoresistive sensor, and a tunneling magnetoresistive sensor.

7. The powered toothbrush as defined in claim 6, wherein: the magnetoresistive sensor is an integrated circuit comprising at least one of an anisotropic magnetoresistive sensor, a giant magnetoresistive sensor, a tunneling magnetoresistive sensor.