CN214679084U - Vibrating electric toothbrush - Google Patents

Abstract

The utility model provides a vibrating electric toothbrush, which comprises a brush head, a toothbrush handle and a control device. The toothbrush is characterized in that a motor used for vibrating the toothbrush head is arranged in the toothbrush handle, and the motor is a direct-current sound wave motor. The control device comprises a printed circuit board, a motor driving chip and a micro control unit, wherein the motor driving chip and the micro control unit are arranged on the printed circuit board, the motor driving chip is respectively electrically connected with the micro control unit and the motor, the micro control unit is used for sending a frequency adjusting electric signal to the motor driving chip, and the motor driving chip drives the motor to vibrate to send out the sound corresponding to the tone according to the frequency adjusting electric signal. The utility model provides a vibrating electric toothbrush can convert single vibration noise originally into different tones, then constitutes the complete music of song through the tone of difference, has advantages such as small, with low costs and low noise.

Description

Vibrating electric toothbrush

Technical Field

The utility model relates to a technical field of oral cavity cleaning device, in particular to vibrating electric toothbrush.

Background

The toothbrush is an indispensable cleaning article in daily life. With the continuing advancement of technology, the advent of electric toothbrushes has revolutionized the field of oral care. The electric toothbrush is characterized in that an electric toothbrush head is arranged at the front end of a toothbrush handle, a power supply is arranged in the toothbrush handle, the power supply supplies power to a motor in the toothbrush to drive the toothbrush head to vibrate, and therefore a user is helped to achieve the effect of automatic tooth brushing. Electric toothbrushes are classified into two types, vibration and rotation, and the specific operation mechanism thereof is as follows: the toothbrush head generates high-frequency vibration by the rapid rotation or vibration of the motor core, so that the toothpaste is instantly decomposed into fine foam to deeply clean teeth gaps; meanwhile, the vibration of the brush hair can promote the blood circulation of the oral cavity and has a massage effect on the gum tissue. The user can easily and quickly finish the tooth brushing action, the tooth stain can be thoroughly removed, the tooth brushing time is shortened, and the harm to teeth and gum is effectively reduced.

The vibrating electric toothbrush generates certain noises during use, greatly influences the comfort of users, and individual products can also cause the dysphoric mood of users due to the excessive noises. To this problem, there is the producer through add sound generating equipment on electric toothbrush to cover the noise that produces when the toothbrush vibrates, but, through increasing sound generating equipment such as bee calling organ or speaker, can improve electric toothbrush's product size and manufacturing cost, and then produced new problem. Therefore, how to produce a vibrating electric toothbrush with small volume, low cost and low noise is a problem to be solved in the prior art.

SUMMERY OF THE UTILITY MODEL

For solving prior art, the big technical problem of noise that vibrating electric toothbrush exists, the technical scheme of the utility model as follows:

the utility model provides a vibrating electric toothbrush, which comprises a brush head, a toothbrush handle and a control device. The toothbrush head is detachably connected with the toothbrush handle. The toothbrush is characterized in that a motor used for vibrating the toothbrush head is arranged in the toothbrush handle, and the motor is a direct-current sound wave motor. The control device comprises a printed circuit board, a motor driving chip and a micro control unit, wherein the motor driving chip and the micro control unit are arranged on the printed circuit board, the motor driving chip is respectively electrically connected with the micro control unit and the motor, the micro control unit is used for sending a frequency adjusting electric signal to the motor driving chip, and the motor driving chip drives the motor to vibrate to send out the sound corresponding to the tone according to the frequency adjusting electric signal.

The utility model provides a vibrating electric toothbrush can carry out accurate control to the vibration frequency of motor through controlling means, makes electric toothbrush send out the vibration sound that has the rhythm, and the concrete principle is: the motor is a direct current sound wave motor, the motor is composed of an induction coil and an internal stator, the coil is electrified with an induction magnetic field to drive the internal stator to swing back and forth to realize vibration; the motor driving chip has the function of controlling the power switch of the motor, and can switch the positive pole and the negative pole of the power of the motor at the same time, so that the left-right deflection function of the motor is realized, when the motor is powered on alternately in a positive direction and a reverse direction with certain frequency, the output shaft of the motor can do reciprocating back-and-forth oscillation according to the frequency, thereby really realizing the action of brushing the toothbrush, and meanwhile, the motor can make a sound corresponding to the tone according to the input frequency by adjusting the input current frequency of the motor; the micro control unit is used as a central nerve, music information and a control program are stored in the micro control unit, the motor deflection frequency and the switching time are controlled by different frequencies through a motor driving chip, and tone switching and beat time control are realized, so that pre-stored music information is expressed by melody formed by motor vibration sound.

The utility model provides a vibrating electric toothbrush, only can be through the vibration frequency of controlling means adjustment motor original single vibration noise convert different tones, then constitute a song complete music through different tones, need not to add sound production equipment such as bee calling organ or speaker alone, compare the music toothbrush that the volume is great among the prior art, the utility model discloses on the basis of realizing the function of giving out music, do not improve product size and manufacturing cost, make electric toothbrush have advantages such as small, with low costs and low noise; the utility model provides an electric toothbrush lets the user can also experience the music when brushing teeth, makes the boring action of brushing teeth become to have the interest, especially children user, because children user's self-control is weak, and is not high to the interest degree of brushing teeth, and conventional electric toothbrush can't attract children to accomplish when the regulation is brushed teeth, and then can't effectively clean the tooth, adopts the utility model provides an electric toothbrush, the music melody that the vibration sound constitutes can attract children to last the use, and then has guaranteed to brush teeth when long and clean effect.

In one possible embodiment, a damping element is mounted around the electric machine.

In one possible embodiment, a damping element is mounted around the printed circuit board.

In one possible design, the printed circuit board is secured to the interior of the toothbrush handle by a bracket.

In one possible design, the surface of the toothbrush handle has a control panel and is configured to send control commands to the micro control unit.

In one possible design, the motor has an output shaft, the distal end of which is socket-connected with the brush head, and the proximal end of which is sleeved with a bushing.

In one possible design, the vibrating electric toothbrush of the present invention further comprises: the light source is an ultraviolet lamp capable of emitting 400-405 nanometer wavelength ultraviolet light and is electrically connected with the micro control unit, the micro control unit is used for sending an electric signal for driving the light source to flicker to the light source, the light source is arranged on the toothbrush handle and is configured to emit light beams to the toothbrush head, and the toothbrush head is a light-transmitting toothbrush head.

In one possible design, the outer seal of the lamp source is provided with a light-transmitting protection.

In one possible design, the vibrating electric toothbrush of the present invention further comprises: the light blocking cover is sleeved outside the brush head.

In a possible design, the light source is a plurality of light sources which are evenly distributed in the circumferential direction.

Drawings

Fig. 1 is an assembly view of an embodiment of the vibrating electric toothbrush of the present invention;

fig. 2 is an exploded view of an embodiment of the vibrating electric toothbrush of the present invention;

fig. 3 is a schematic diagram of a control device according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a control device according to another embodiment of the present invention.

Reference numerals: 10. a brush head; 20. a toothbrush handle; 21. a motor; 211. an output shaft; 212. a shaft sleeve; 22. a lithium battery; 221. a charging terminal; 222. a charging port sealing assembly; 23. a vibration damping member; 30. a control device; 31. a printed circuit board; 311. a support; 32. a motor driving chip; 33. a micro control unit; 40. a light source; 41. a light-transmitting protective member; 42. a lamp panel; 50. a light barrier.

Detailed Description

The technical solution of the present invention will be described below with reference to the accompanying drawings. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "side", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on installation, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

It should be noted that, in the embodiments of the present invention, the same reference numerals are used to denote the same components or parts, and for the same components or parts in the embodiments of the present invention, only one of the components or parts may be used as an example to denote the reference numeral in the drawings, and it should be understood that the reference numerals are also applicable to other similar components or parts.

In the following, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

As shown in fig. 1-3, the present embodiment provides an oscillating electric toothbrush comprising a head 10, a toothbrush handle 20, and a control device 30. The head 10 is removably connected to a toothbrush handle 20. The toothbrush handle 20 is internally provided with a motor 21 for vibrating the brush head 10, and the motor 21 is a direct current sound wave motor 21. The control device 30 comprises a printed circuit board 31, a motor driving chip 32 and a micro control unit 33, wherein the motor driving chip 32 and the micro control unit 33 are both arranged on the printed circuit board 31, the motor driving chip 32 is respectively electrically connected with the micro control unit 33 and the motor 21, the micro control unit 33 is used for sending a frequency adjusting electric signal to the motor driving chip 32, and the motor driving chip 32 drives the motor 21 to vibrate according to the frequency adjusting electric signal so as to emit sound corresponding to the tone.

The motor 21 is a direct current sound wave motor 21, the motor 21 is composed of an induction coil and an internal stator, and the coil is electrified with an induction magnetic field to drive the internal stator to swing back and forth to realize vibration.

The motor driving chip 32 has a function of controlling a power switch of the motor 21, and can switch the positive electrode and the negative electrode of the power of the motor 21, so that when the motor 21 is energized alternately in a positive direction and a reverse direction with a certain frequency, the output shaft 211 of the motor 21 can swing back and forth in a reciprocating manner according to the frequency, thereby really realizing the action of brushing the toothbrush, and meanwhile, the motor 21 can make a sound corresponding to the tone according to the input frequency by adjusting the input current frequency of the motor 21.

The micro control unit 33(MCU) serves as a central nerve, stores music information and a control program therein, and controls the motor 21 deflection frequency and the switching time at different frequencies through the motor driving chip 32 to realize tone switching and beat time control, thereby expressing the pre-stored music information with a melody consisting of the vibration sound of the motor 21.

For example: the micro control unit 33 assembles the frequency values of the tones into a relationship table of the tones and the frequencies, as shown in table 1, when the actual music score is required, the program directly looks up the table to call the frequency values, and the motor driving chip 32 controls the motor 21 to emit the tones.

TABLE 1 Pitch vs. frequency

Assuming that the driving frequency of the motor 21 for emitting the bass note DO is 220, and F1 is made 220, when the program function is called, the value 220 of F1 is directly assigned to the function and sent to the motor driving chip 32 to enable the motor 21 to emit the bass DO.

Similarly, the relationship between the beat and the time is also tabulated, as shown in table 2, and the motor 21 is controlled to be on according to the actual pronunciation beat.

TABLE 2 TABLES OF TAKE-TIME RELATIONS

Beat of sound	Time	Beat of sound	Time	Beat of sound	Time
						1/8 beat	T0	1/4 beat	T1	1/2 beat	T2
1 beat	T3	2 beats	T4	4 beats	T5

Taking "little stars" as an example, a music melody is "flash and crystal", corresponding notes are "1155, 665", and the tones are "middle DO2, middle DO2, middle SO2, middle SO2, middle LA2, middle LA2, and middle SO 2".

1. "one" corresponds to the frequency F8 and the time T1, at this time, the value of the frequency F8 is outputted to the motor driving chip 32, and the time for turning on the motor 21 is T1;

2. the 'flash' corresponds to the frequency F8 and the time T1, at this time, the value of the frequency F8 is output to the motor driving chip 32, and meanwhile, the starting time of the motor 21 is T1;

3. "one" corresponds to the frequency F12 and the time T1, at this time, the value of the frequency F12 is outputted to the motor driving chip 32, and the time for turning on the motor 21 is T1;

4. the 'flash' corresponds to the frequency F12 and the time T1, at this time, the value of the frequency F12 is output to the motor driving chip 32, and meanwhile, the starting time of the motor 21 is T1;

5. the "bright" corresponds to the frequency F13 and the time T1, at this time, the value of the frequency F13 is output to the motor driving chip 32, and the starting time of the motor 21 is T1;

6. the crystal corresponds to the frequency F13 and the time T1, at this time, the value of the frequency F13 is output to the motor driving chip 32, and meanwhile, the starting time of the motor 21 is T1;

7. the 'crystal' corresponds to the frequency F12 and the time T2, the value of the frequency F12 is output to the motor driving chip 32, meanwhile, the opening time of the motor 21 is T2, and so on, so that the corresponding matching of the music and the frequency of the motor 21 is realized, the beat corresponds, and the music is completely played through the vibration sound of the motor 21.

In one embodiment, in order to reduce the vibration of the motor 21 to the toothbrush handle 20, a vibration damping member 23 is padded around the motor 21 to separate the motor 21 from the toothbrush handle 20, so as to prevent the body of the motor 21 from directly contacting the toothbrush handle 20.

In one embodiment, in order to prevent the vibration force of the motor 21 from damaging the printed circuit board 31 and the electronic components soldered on the printed circuit board 31, the vibration damping member 23 is also mounted around the printed circuit board 31.

The vibration damping member 23 is a rubber pad and/or a noise damping cotton, and can convert vibration kinetic energy of the motor 21 into internal energy to be released, so that the purpose of vibration damping and noise reduction of the body of the motor 21 is achieved.

In one embodiment, in order to further reduce the vibration force generated when the motor 21 vibrates, which is transmitted to the printed circuit board 31 through the toothbrush handle 20, a bracket 311 is disposed inside the toothbrush handle 20, and the printed circuit board 31 is fixed inside the toothbrush handle 20 through the bracket 311.

The support 311 may be made of a flexible material, such as rubber or an elastomer, so that the support 311 has certain vibration damping and noise reduction effects.

In one embodiment, the surface of the toothbrush handle 20 has a control panel and is configured to send control commands to the micro control unit 33. The control panel is a physical key or a touch screen, and is an input module of an instruction, and is electrically connected to the micro control unit 33, so as to send a control command of a user to the micro control unit 33, and then the micro control unit 33 performs a corresponding function. For example: switch to the next song, change the vibration frequency, etc.

In one embodiment, in order to detachably connect the toothbrush handle 20 and the toothbrush head 10 and ensure the waterproof performance of the motor 21, the motor 21 is fixedly arranged inside the toothbrush handle 20, the output shaft 211 of the motor 21 extends out of the end surface of the toothbrush handle 20, the distal end of the output shaft 211 is in socket connection with the toothbrush head 10, the proximal end of the output shaft 211 is sleeved with a bushing 212, and the bushing 212 can prevent water from permeating into the toothbrush handle 20 and protect the safety of an internal circuit system.

As shown in fig. 2 and 4, in one embodiment, to further enhance the interest and functionality of the electric toothbrush, the vibrating electric toothbrush further comprises: the toothbrush comprises a light source 40, wherein the light source 40 is an ultraviolet lamp capable of emitting 400-405 nanometer wavelength ultraviolet light and is electrically connected with a micro control unit 33, the micro control unit 33 is used for sending an electric signal for driving the light source 40 to flicker to the light source 40, the light source 40 is arranged on a toothbrush handle 20 and is configured to emit light beams to a toothbrush head 10, and the toothbrush head 10 is a light-transmitting toothbrush head 10.

The light-transmitting brush head 10 is made of food-grade transparent or semitransparent plastic, such as polypropylene, polycarbonate, polyurethane, polystyrene, preferably polypropylene plastic, and is made into a hard part of the light-transmitting brush head 10 through injection molding or compression molding, and the bristle part is made of conventional flexible materials.

The visible light wavelength is 400-760 nm, the ultraviolet wavelength which has the sterilization function and is harmless to human bodies is 200-405 nm, therefore, the lamp source 40 adopts an ultraviolet lamp which can emit 405 nm wavelength.

The light source 40 is integrated on the lamp panel 42(PCB) through the surface mount technology, the lamp panel 42 is also provided with a printed circuit, and the lamp panel 42 is connected with the printed circuit board 31 through a soldering connecting wire to realize the electrical connection relationship between the micro control unit 33 and the light source 40. The micro control unit 33 pre-stores the control program of the light source 40 before the factory shipment, and can logically control the flashing condition of the light source 40 after being triggered by the user, for example:

1. dividing the tooth brushing time of 2 minutes into 4 sections, cleaning the upper teeth of the right oral cavity in the first 30 seconds, and driving the light source 40 to flash in a form similar to a Morse code '. Anseri';

2. the second 30 seconds cleans the lower teeth of the right oral cavity, and the micro control unit 33 drives the light source 40 to flash in a form similar to the Morse code "-;

3. the third 30 seconds is that the upper teeth of the left oral cavity are cleaned, and the micro control unit 33 drives the light source 40 to flash in a form similar to a Morse code "- - -";

4. the fourth 30 seconds cleans the left oral cavity by pressing down, and the micro control unit 33 drives the light source 40 to flash in a form similar to the Morse code "-;

5. after the 2 minute brushing period is complete, the light source 40 is continuously on, ending with the user turning off the power.

In the embodiment, the vibrating electric toothbrush is additionally provided with the light beam transmission function toothbrush and the light irradiation sterilization function toothbrush, the light source 40 capable of providing safe visible ultraviolet light is arranged, the emitted light beam is transmitted to the light-transmitting brush head 10, the effect of light beam transmission to decorate the toothbrush is achieved, and the situation that a user feels bored and withered in the tooth brushing process is avoided, particularly for children, because the self-control of the children is weak, the interest degree of tooth brushing is not high, the conventional electric toothbrush cannot attract children to finish the specified tooth brushing time, and further the teeth cannot be effectively cleaned; meanwhile, under the condition that the electric toothbrush is idle and not used, the light source 40 is turned on to irradiate the light-transmitting brush head 10 to sterilize and disinfect, particularly, the electric toothbrush is in a humid environment for a long time, the sterilization and disinfection function can effectively prevent the brush head 10 from breeding bacteria, and the sanitation and safety of a user are facilitated.

In one embodiment, to prevent damage and flooding of the light source 40, the exterior of the light source 40 is sealed with a light transmissive protector 41. The light-transmitting protective member 41 is made of a material having high light transmittance, and may be made of glass or the above-mentioned transparent plastic, preferably transparent plastic, which has better toughness and strength than glass. The light-transmitting protection member 41 is hermetically connected to the exterior of the light source 40, and provides collision-proof and waterproof protection for the light source 40.

In one embodiment, in order to improve the utilization rate of the light source 40 and further improve the sterilization effect, the vibrating type electric toothbrush further comprises a light blocking cover 50, and the light blocking cover 50 is sleeved outside the brush head 10. The design of the light blocking cover 50 enables light beams irradiated to the periphery of the light source 40 and far away from the brush head 10 to be blocked and transmitted by the light blocking cover 50, so that the light emitting angle of the light source 40 is more concentrated, the light beams are gathered, and the utilization rate of the light source is improved.

The light blocking cover 50 is made of transparent plastic mixed with carbon particles, however, in other embodiments, the light blocking cover 50 may also be mixed with other particles suitable for use in a toothbrush as long as the light blocking effect can be achieved.

When the electric toothbrush is idle or not in use, the light source 40 is turned on to continuously irradiate the toothbrush head 10, and the light blocking cover 50 gathers light beams to the toothbrush head 10 to kill bacteria on the toothbrush head 10 and prevent the bacteria from breeding in large quantities. Research data show that ultraviolet rays with a wavelength of 405 nanometers can kill most of bacteria when reaching enough intensity and irradiation time, and the sterilization mechanism is as follows: the ultraviolet light beam irradiates a substance decomposition reaction to destroy the basic group of the bacterial DNA, so that the bacterial DNA structure is changed and cannot be propagated.

In one embodiment, in order to increase the coverage of the light beam emitted by the light source 40, the brush head 10 can be fully covered to avoid dead angles of light beam irradiation, and the plurality of light sources 40 are uniformly distributed in the circumferential direction. The preferred structure is: the plurality of light sources 40 are equally spaced around the output shaft 211 along the circumference of the output shaft 211, and the arrangement mode also utilizes the space around the output shaft 211, so that the whole structure of the electric toothbrush is more compact and reasonable.

In one embodiment, a power source is provided within the toothbrush handle 20 and provides power to the electric toothbrush. The power supply is a rechargeable power supply, such as a lithium battery 22, or a plug-in power supply, which is connected to the household circuit through a plug.

In an embodiment, when the power source is the lithium battery 22, the power source further includes a charging terminal 221, a charging port sealing assembly 222, and other components similar to those of the prior art, which are not described herein again. And a power protection circuit and a charging protection circuit are further provided on the printed circuit board 31 to improve the power consumption safety and the charging safety of the electric toothbrush.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A vibrating electric toothbrush, comprising:

a brush head (10);

a toothbrush handle (20) which is internally provided with a motor (21) for vibrating the toothbrush head (10), wherein the motor (21) is a direct current sound wave motor (21);

controlling means (30), including printed circuit board (31), motor driver chip (32) and little the control unit (33) all set up in on printed circuit board (31), motor driver chip (32) respectively with little the control unit (33) with motor (21) electric connection, little the control unit (33) be used for to motor driver chip (32) send the frequency and adjust the signal of telecommunication, motor driver chip (32) basis frequency adjustment signal of telecommunication drive motor (21) vibration is in order to send the sound of corresponding tone.

2. A vibrating electric toothbrush according to claim 1, characterised in that a vibration damper (23) is padded around the motor (21).

3. A vibrating electric toothbrush according to claim 1, characterised in that a vibration damper (23) is padded around the printed circuit board (31).

4. A vibrating electric toothbrush according to claim 1, characterised in that the printed circuit board (31) is fixed to the inside of the toothbrush handle (20) by means of a bracket (311).

5. A vibrating electric toothbrush according to claim 4, characterised in that the surface of the toothbrush handle (20) has a control panel and is configured to send control commands to the micro control unit (33).

6. A vibrating electric toothbrush according to claim 1, characterised in that the motor (21) has an output shaft (211), the distal end of the output shaft (211) being socket-connected to the brush head (10), the proximal end being sleeved with a bushing (212).

7. The vibrating electric toothbrush according to claim 1, further comprising:

the toothbrush head comprises a light source (40), the light source (40) is an ultraviolet lamp capable of emitting 400-inch 405-nanometer wavelength ultraviolet light and is electrically connected with a micro control unit (33), the micro control unit (33) is used for sending an electric signal for driving the light source (40) to flicker to the light source (40), the light source (40) is arranged on the toothbrush handle (20) and is configured to emit light beams to the toothbrush head (10), and the toothbrush head (10) is a light-transmitting toothbrush head (10).

8. A vibrating electric toothbrush according to claim 7, characterised in that the outer seal of the light source (40) is provided with a light-transmitting protector (41).

9. The vibrating electric toothbrush according to claim 7, further comprising:

and the light blocking cover (50) is sleeved outside the brush head (10).

10. A vibrating electric toothbrush according to claim 7, characterised in that the light source (40) is plural and evenly distributed circumferentially.

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