CN114587673A - Improved electric toothbrush button-free starting method - Google Patents
Improved electric toothbrush button-free starting method Download PDFInfo
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- CN114587673A CN114587673A CN202210398722.1A CN202210398722A CN114587673A CN 114587673 A CN114587673 A CN 114587673A CN 202210398722 A CN202210398722 A CN 202210398722A CN 114587673 A CN114587673 A CN 114587673A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 230000006698 induction Effects 0.000 claims abstract description 75
- 239000003990 capacitor Substances 0.000 claims abstract description 32
- 230000010355 oscillation Effects 0.000 claims abstract description 10
- 230000004913 activation Effects 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 description 12
- 238000013016 damping Methods 0.000 description 8
- 238000007599 discharging Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 210000003128 head Anatomy 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 238000010278 pulse charging Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 229940034610 toothpaste Drugs 0.000 description 1
- 239000000606 toothpaste Substances 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/32—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating
- A61C17/34—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor
- A61C17/3409—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like reciprocating or oscillating driven by electric motor characterized by the movement of the brush body
- A61C17/3481—Vibrating brush body, e.g. by using eccentric weights
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C17/00—Devices for cleaning, polishing, rinsing or drying teeth, teeth cavities or prostheses; Saliva removers; Dental appliances for receiving spittle
- A61C17/16—Power-driven cleaning or polishing devices
- A61C17/22—Power-driven cleaning or polishing devices with brushes, cushions, cups, or the like
- A61C17/221—Control arrangements therefor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P1/00—Arrangements for starting electric motors or dynamo-electric converters
- H02P1/16—Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/06—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter
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- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Brushes (AREA)
Abstract
The invention discloses a method for starting an improved electric toothbrush without a key, which comprises the following steps: the toothbrush comprises a toothbrush body, a control chip arranged on a circuit board in the toothbrush body, an induction coil arranged on the circuit board and controlled by the control chip to generate a magnetic field, and a resonant capacitor for counting, wherein the induction coil is controlled by the control chip to work for 100 plus 300 milliseconds and then is closed after energy is stored, and the number S1 of harmonic oscillation pulses of the resonant capacitor in unit time before the energy disappears is recorded; when the brush head on the toothbrush body is in contact stress, the motor is driven to approach or separate from the circuit board, so that the distance between the motor and the induction coil is changed, at the moment, the control chip controls the induction coil to work for 100 plus 300 milliseconds and then to be closed after energy is stored, and the number S2 of harmonic oscillation pulses of the resonant capacitor in unit time before the energy disappears is recorded; the control chip judges whether the brush head is contacted with the teeth according to whether the comparison pulse number S2 is equal to the pulse number S1 or not, and then the motor is controlled to start and stop.
Description
The technical field is as follows:
the invention relates to the field of electric toothbrushes, in particular to a method for starting an improved electric toothbrush without a key.
Background art:
the electric toothbrush is one kind of toothbrush, and the brush head produces high frequency vibration through the fast rotation or vibration of the motor core to decompose toothpaste into fine foam and clean teeth slit, and the vibration of the brush hair can promote the blood circulation in the mouth and massage gum tissue.
Along with the improvement of living standard of people, more and more electric toothbrush articles are applied to daily life of people, and because the electric toothbrush is convenient to use, the cleaning effect is very ideal, and the electric toothbrush is popular with consumers.
At present, electric toothbrushes on the market are generally controlled by keys, and the control keys are required to be arranged on a shell in a key control mode, so that the waterproof performance is reduced, the keys are easy to fatigue after being used for a long time, and the service life of the toothbrush is shortened.
In view of the above, the present inventors propose the following.
The invention content is as follows:
the invention aims to overcome the defects of the prior art and provides a method for starting an improved electric toothbrush without a button.
In order to solve the technical problem, the invention adopts the following technical scheme: a method for button-less activation of an improved electric toothbrush comprising: the toothbrush comprises a toothbrush body, a control chip arranged on a circuit board in the toothbrush body, an induction coil arranged on the circuit board and controlled by the control chip to generate a magnetic field, and a resonance capacitor for counting, wherein the induction coil is controlled by the control chip to work for 100 milliseconds and store energy and then be closed, and at the moment, the number S1 of harmonic oscillation pulses of the resonance capacitor in unit time before the energy disappears is recorded; when the brush head on the toothbrush body is in contact stress, the motor is driven to approach or separate from the circuit board, so that the distance between the motor and the induction coil is changed, at the moment, the control chip controls the induction coil to work for 100 milliseconds and store energy and then close, and the number S2 of pulses of harmonic oscillation of the resonant capacitor in unit time before the energy disappears is recorded; and judging whether the brush head is in contact with the teeth or not by the control chip according to the comparison result that whether the pulse number S2 is equal to the pulse number S1 or not, and further controlling the motor to start and stop.
Further, in the above technical solution, when the pulse number S2 is greater than the pulse number S1 in the process of comparing the pulse number S2 with the pulse number S1, the motor starts to operate;
when the number of pulses S2 is less than the number of pulses S1, the next judgment procedure is carried out, and whether the time that the number of pulses S2 is less than the number of pulses S1 is within a set time or not is judged;
when the time that the pulse number S2 is less than the pulse number S1 is within a specified time, the working mode is switched, and when the time that the pulse number S2 is less than the pulse number S1 is not within the specified time, the working mode returns to a standby state until the induction device does not detect the human body capacitance, and then the machine is turned off;
after finishing switching the working mode once, the control chip compares the pulse number S2 with the pulse number S1 again, when the pulse number S2 is greater than the pulse number S1, the motor starts to work in the current working mode, and when the pulse number S2 is less than the pulse number S1, it is determined again whether the time that the pulse number S2 is less than the pulse number S1 is within the set time, if so, the switching working mode is entered again, and if not, the standby state is entered until the shutdown is completed.
Further, in the above technical solution, when the control chip compares the current with the pulse number S1, and the pulse number S2 is greater than the pulse number S1, the motor starts to operate;
when the number of pulses S2 is less than the number of pulses S1, switching the operation mode, and after completing one mode switching, comparing the number of pulses S2 with the number of pulses S1 again, if the number of pulses S2 is greater than the number of pulses S1, starting the operation of the motor in the mode, and if the number of pulses S2 is less than the number of pulses S1, switching the operation mode again;
and when the number of pulses S2 is equal to the number of pulses S1, the program proceeds to a next determination procedure, where whether the time when the number of pulses S2 is equal to the number of pulses S1 is within a set time, and when the time when the number of pulses S2 is equal to the number of pulses S1 is within a predetermined time, the program returns to a standby state, the comparison between the number of pulses S2 and the number of pulses S1 is always maintained, and when the time when the number of pulses S2 is equal to the number of pulses S1 is not within the predetermined time, the program is turned off.
Furthermore, in the above technical solution, the circuit board is further provided with an induction device for waking up the electric toothbrush to be in a standby state by inducing a human body capacitance.
Further, in the above technical solution, the sensing device is a touch sensing device, a contact surface corresponding to the sensing device is disposed on an outer wall of the toothbrush body, and when a user holds the toothbrush body, the sensing device detects a capacitance of a human body to activate the control chip, the sensing coil and the resonant capacitor to start working, so that the electric toothbrush enters a standby state, and the control chip records the number of pulses S1 generated at this time.
Furthermore, in the above technical scheme, the upper end of the motor is provided with a front fixing cover fixedly connected with the inner wall of the toothbrush body, and the lower end of the motor is provided with a rear fixing cover fixedly connected with the support inner frame.
Furthermore, in the above technical scheme, a support inner frame for supporting the motor is arranged in the toothbrush body, the motor is mounted on the upper portion of the support inner frame, a battery is further mounted on the lower portion of the support inner frame, and the circuit board is fixed on one side of the support inner frame.
Furthermore, in the above technical scheme, the operating frequency of the induction coil is 20-30KHZ, a detachable brush head is further installed on the toothbrush body, and the motor is connected with the brush head through a driving shaft and drives the brush head to operate; the drive shaft stretches out toothbrush body, just the drive shaft is located this internal pot head of toothbrush is equipped with the buckler, the tail-hood is installed to toothbrush body bottom.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects: the invention adopts the technical scheme that an induction coil is arranged at the position of a circuit board opposite to a motor, a counting device connected with the induction coil is arranged on the circuit board, a control chip sends signals to control the induction coil to be electrified and operated, so that the induction coil realizes pulse charging and discharging, energy is provided for the counting device in the discharging process of the induction coil, the control chip records the pulse number of the counting device in the energy supply time of the induction coil, whether the relative distance between the motor and the circuit board is changed or not is judged according to the pulse number in unit time, the toothbrush body is subjected to contact reaction force to cause the relative displacement between the motor and the circuit board during tooth brushing, and further the damping of the induction coil is changed during discharging, thereby the pulse number of the counting device in the unit energy supply time of the induction coil is changed, and the control chip sends signals to control the motor to start to operate, and after accomplishing to brush teeth, the toothbrush body loses the atress and leads to recovering initial position between circuit board and the motor, and then sends signal control motor stop work by control chip to realize no button control electric toothbrush and start and stop, consequently, need not to set up the control button again on the handle, improve the seal of handle, promote waterproof performance, and can not lead to the life-span decline because of the service fatigue of button again, promote electric toothbrush's life.
Description of the drawings:
FIG. 1 is an exploded view of the powered toothbrush of the present invention;
FIG. 2 is a schematic view of the powered toothbrush of the present invention in an unstressed operating condition;
FIG. 3 is a schematic view of the powered toothbrush of the present invention in an operational condition when subjected to a force;
FIG. 4 is a waveform illustrating the energy stored in the induction coil of the present invention;
FIG. 5 is a waveform diagram illustrating the oscillation of the resonant capacitor after the induction coil is energized;
FIG. 6 is a schematic diagram of the first embodiment of the present invention;
fig. 7 is a working principle diagram of the second embodiment of the invention.
The specific implementation mode is as follows:
the invention is further illustrated below with reference to specific embodiments and the accompanying drawings.
Referring to fig. 1 to 7, a method for button-less activation of an improved electric toothbrush comprises: the toothbrush comprises a toothbrush body 1, a control chip 41 arranged on a circuit board 3 in the toothbrush body 1, an induction coil 42 arranged on the circuit board 3 and controlled by the control chip 41 to generate a magnetic field, and a resonant capacitor for counting, wherein the induction coil 42 is controlled by the control chip 41 to work for 100-300 milliseconds and then be closed after energy is stored, and at the moment, the number S1 of pulses of harmonic oscillation of the resonant capacitor in unit time before the energy disappears is recorded; when the brush head 8 on the toothbrush body 1 is stressed in a contact manner, the motor 2 is driven to approach or separate from the circuit board 3, so that the distance between the motor 2 and the induction coil 42 is changed, at the moment, the control chip 41 controls the induction coil 42 to work for 100-300 milliseconds and then to be closed, and the number S2 of pulses of harmonic oscillation of the resonant capacitor in unit time before the energy disappears is recorded; the control chip 41 judges whether the brush head 8 is in contact with the teeth according to the comparison result of the pulse number S2 and the pulse number S1, and then the motor 2 is controlled to start and stop.
In an embodiment, when the control chip 41 compares the number of pulses S2 with the number of pulses S1, and the number of pulses S2 is greater than the number of pulses S1, the motor 2 starts to operate;
when the number of pulses S2 is less than the number of pulses S1, the next judgment procedure is carried out, and whether the time that the number of pulses S2 is less than the number of pulses S1 is within a set time or not is judged;
when the time that the number of pulses S2 is less than the number of pulses S1 is within a specified time, switching the working mode, and when the time that the number of pulses S2 is less than the number of pulses S1 is not within the specified time, returning to the standby state until the induction device 5 does not detect the human body capacitance, and then turning off the device;
after completing the switching of the working mode once, the control chip 41 compares the number of pulses S2 with the number of pulses S1 again, when the number of pulses S2 is greater than the number of pulses S1, the motor 2 starts to work in the current working mode, and when the number of pulses S2 is less than the number of pulses S1, it is determined again whether the time that the number of pulses S2 is less than the number of pulses S1 is within the set time, if so, the working mode is switched again, and if not, the standby state is entered until shutdown. In this embodiment, the electric toothbrush has at least three modes of operation.
In this embodiment, the standby time is set to 30S, the mode switching time is set to 5S, when the time when the number of pulses S2 is less than the number of pulses S1 reaches 5S, the mode switching is performed, and when the number of pulses S2 is less than the number of pulses S1 all the time, after four times of mode switching, and the time reaches 30S, it is determined that the user has operated incorrectly, and the electric toothbrush is automatically turned off. Therefore, the electric quantity can be saved, and the injury of the user caused by operation errors can be prevented. Secondly, the electric toothbrush is provided with a tooth brushing time limit, the electric toothbrush can be automatically shut down after the motor 2 works for two minutes, the completion of tooth brushing is prompted to a user, the user is prevented from forgetting the time, tooth brushing is carried out for a long time, and the teeth are damaged, especially for old people and children.
In another embodiment, when the control chip 41 compares the current a2 with the pulse number S1, and the pulse number S2 is greater than the pulse number S1, the motor 2 starts to operate;
when the number of pulses S2 is smaller than the number of pulses S1, switching the operation mode, and after completing the mode switching once, comparing the number of pulses S2 with the number of pulses S1 again, if the number of pulses S2 is larger than the number of pulses S1, starting the operation of the motor 2 in the mode, and if the number of pulses S2 is smaller than the number of pulses S1, switching the operation mode again;
and when the number of pulses S2 is equal to the number of pulses S1, the program proceeds to a next determination procedure, where whether the time when the number of pulses S2 is equal to the number of pulses S1 is within a set time, and when the time when the number of pulses S2 is equal to the number of pulses S1 is within a predetermined time, the program returns to a standby state, the comparison between the number of pulses S2 and the number of pulses S1 is always maintained, and when the time when the number of pulses S2 is equal to the number of pulses S1 is not within the predetermined time, the program is turned off.
In this embodiment, when the number of pulses S2 is equal to the number of pulses S1, the brush head 8 is not in contact with the teeth, or the force is small, or the brush head 2 is not in contact with the teeth, the electric toothbrush is in a standby state for a predetermined time, and the electric toothbrush is automatically turned off to save power. Certainly, after the toothbrush body 1 is held by hand to activate the electric toothbrush to enter the standby state, if the brush head 8 is not stressed within the set time, that is, the pulse number S2 is not generated, the electric toothbrush is automatically turned off to save the electric quantity. In this embodiment, the standby time is 30S, and meanwhile, when the continuous mode switching time exceeds 30S, the automatic shutdown is performed, so as to prevent the user from being injured due to wrong operation. Secondly, the electric toothbrush is provided with a tooth brushing time limit, the electric toothbrush can be automatically shut down after the motor 2 works for two minutes, the completion of tooth brushing is prompted to a user, the user is prevented from forgetting the time, tooth brushing is carried out for a long time, and the teeth are damaged, especially for old people and children. In this embodiment, the electric toothbrush has at least three modes of operation. The circuit board 3 is also provided with an induction device 5 which can wake up the electric toothbrush to be in a standby state by inducing human body capacitance.
The sensing device 5 is a touch sensing device, the outer wall of the toothbrush body 1 is provided with a contact surface 11 corresponding to the sensing device 5, when a user holds the toothbrush body 1, the sensing device 5 detects human capacitance to activate the control chip 41, the sensing coil 42 and the resonant capacitor to start working, so that the electric toothbrush enters a standby state, and the control chip 41 records the number of pulses S1 generated at the time.
The upper end of the motor 2 is provided with a front fixed cover 21 fixedly connected with the inner wall of the toothbrush body 1, and the lower end of the motor 2 is provided with a rear fixed cover 22 fixedly connected with the support inner frame 6.
The toothbrush is characterized in that a supporting inner frame 6 used for supporting the motor 2 is arranged in the toothbrush body 1, the motor 2 is installed on the upper portion of the supporting inner frame 6, a battery 7 is further installed on the lower portion of the supporting inner frame 6, and the circuit board 3 is fixed on one side of the supporting inner frame 6.
The working frequency of the induction coil 42 is 20-30KHZ, a detachable brush head 8 is further mounted on the toothbrush body 1, and the motor 2 is connected with the brush head 8 through a driving shaft 20 and drives the brush head 8 to work; the drive shaft 20 extends out of the toothbrush body 1, a waterproof cover 12 is sleeved at one end, located in the toothbrush body 1, of the drive shaft 20, and a tail cover 13 is installed at the bottom of the toothbrush body 1.
Referring to fig. 1-7, an improved push-button-less powered toothbrush is shown, comprising: the toothbrush comprises a toothbrush body 1, a motor 2 arranged in the toothbrush body 1, a circuit board 3 arranged in the toothbrush body 1 and spaced from the motor 2, and a detection control module 4 for controlling the motor 2 to work by detecting the relative distance between the circuit board 3 and the circuit board 3, wherein the detection control module 4 comprises a control chip 41, an induction coil 42 arranged on the circuit board 3 and connected with the control chip 41, and a counting device for counting, the control chip 41 controls the induction coil 42 to perform pulse discharge and generate a magnetic field, and the magnetic field is converted into energy by forming eddy current outside the motor 2. An induction coil 42 is arranged at a position of a circuit board 3 opposite to a motor 2, a counting device connected with the induction coil 42 is arranged on the circuit board 3, a signal sent by a control chip 41 controls the pulse energization work of the induction coil 42, so that the induction coil 42 realizes pulse charging and discharging, energy is provided for the counting device in the discharging process of the induction coil 42, the control chip 41 records the pulse number of the counting device in the energy supply time of the induction coil 42, whether the relative distance between the motor 2 and the circuit board 3 is changed or not is judged according to the pulse number in unit time, the toothbrush body 1 can be subjected to contact reaction force to cause the relative displacement between the motor 2 and the circuit board 3 during tooth brushing, and further the damping of the induction coil 42 is changed during discharging, thereby causing the pulse number of the counting device in the unit energy supply time of the induction coil 42 to be changed, thereby send signal control motor 2 by control chip 41 and begin work, and after accomplishing to brush teeth, toothbrush body 1 loses the atress and leads to recovering initial position between circuit board 3 and the motor 2, and then send signal control motor 2 stop work by control chip 41, thereby realize no button control electric toothbrush and start and stop, consequently, need not to set up the control button again on the handle, improve the seal of handle, promote waterproof performance, and can not lead to the life-span to descend because of the use fatigue of button again, promote electric toothbrush's life.
The counting device is a resonant capacitor and is electrically connected with the induction coil 42, the control chip 41 controls the induction coil 42 and the resonant capacitor to be switched on and off intermittently, energy stored in the induction coil 42 is supplied to the resonant capacitor after the power is switched off, the resonant capacitor generates harmonic oscillation, and then the control chip 41 records the pulse times. The circuit board 3 is further provided with a plurality of electronic components for assisting the operation of the induction coil 42, the resonance capacitor and the control chip 41, and the electronic components form an auxiliary circuit. When the resonant circuit works, the control chip 41 generates a magnetic field for the switching signals of the induction coil 42 and the resonant capacitor 28Khz, the switch is closed after the induction coil 42 works for 100-300 milliseconds to store energy, and at this time, the energy stored by the induction coil 42 is supplied to the resonant capacitor, so that the resonant capacitor continues to vibrate in a harmonic mode until the energy disappears, and the resonant capacitor stops vibrating. Then the control chip 41 gives the switching signals of the induction coil 42 and the resonant capacitor 28Khz to turn off the switch after the induction coil 42 works for 100-. When the motor 2 is stressed to be closer to the induction coil 42, the damping is larger, the energy attenuation is faster, and the number of pulses in unit time is larger than that when the motor 2 is far away, so that the number of pulses in unit time can be tested before the energy disappears, and the more the number is obtained, the larger the damping is, the closer the motor is, or the time length when the magnetic field disappears is tested, and the shorter the time length is, the closer the motor is. On the contrary, when the motor 2 is stressed farther from the induction coil 42, the damping is smaller, the energy attenuation is slower, and the number of pulses in unit time is less than that when the motor 2 is close to, so that whether the electric toothbrush is in contact with teeth to be stressed is detected, and whether the motor 2 needs to work is further judged.
The circuit board 3 is further provided with an induction device 5 for awakening the detection control module 4. When the electric toothbrush works, the toothbrush body 1 needs to be held firstly, and the induction device 5 is contacted with the palm to detect the capacitance of a human body, so that the electric toothbrush is awakened to enter a standby state.
The toothbrush is characterized in that a supporting inner frame 6 used for supporting the motor 2 is arranged in the toothbrush body 1, the motor 2 is mounted on the upper portion of the supporting inner frame 6, a battery 7 is further mounted on the lower portion of the supporting inner frame 6, and the circuit board 3 is fixed on one side of the supporting inner frame 6.
The induction device 5 is a touch induction device and is arranged at the upper end of the circuit board 3, and a contact surface 11 corresponding to the touch induction device 5 is arranged on the outer wall of the toothbrush body 1; the upper end of the motor 2 is provided with a front fixed cover 21 fixedly connected with the inner wall of the toothbrush body 1, and the lower end of the motor 2 is provided with a rear fixed cover 22 fixedly connected with the support inner frame 6.
The working frequency of the induction coil 42 is 20-30KHZ, the toothbrush body 1 is also provided with a detachable brush head 8, and the motor 2 is connected with the brush head 8 through a driving shaft 20 and drives the brush head 8 to work; the drive shaft 20 extends out the toothbrush body 1, the drive shaft 20 is located one end cover in the toothbrush body 1 is equipped with a waterproof cover 12, and a tail cover 13 is installed at the bottom of the toothbrush body 1.
In summary, when the toothbrush is used, after the toothbrush body 1 is held, the sensing device 5 contacts the palm, and further detects that the human body capacitor enters the standby state, at this time, the control chip 41, the sensing coil 42 and the resonant capacitor enter the working state, and the control chip 41 records the number of pulses S1 generated by the resonant capacitor in the unit energy supply time of the sensing coil 42 at this time; further, after the brush head 8 is inserted into the oral cavity and contacts with teeth, the brush head is subjected to pressure to react on the motor 2 to generate deflection, so that the motor 2 is caused to approach the induction coil 42, the closer the distance between the motor 2 and the induction coil 42 is, the larger the damping applied to the energy supply of the induction coil 42 to the resonant capacitor is, the faster the energy attenuation is, the control chip 41 records the number S2 of pulses generated by the resonant capacitor in the unit energy supply time of the induction coil 42 at the moment, and then the control chip 41 compares the number S2 of the pulses with the number S1 of the pulses; further, when the number of pulses S2 is greater than the number of pulses S1, the control chip 41 sends a signal to operate the motor 2 to drive the brush head 8 to brush teeth, and when the number of pulses S2 is less than the number of pulses S1, the switching operation mode is entered, and after completing the switching operation mode, the control chip 41 continues to return to the control chip 41 to compare the number of pulses S2 with the number of pulses S1, and after completing the switching operation mode, the toothbrush body 1 generates a vibration prompt or an indicator light flashing prompt; further, if the number of pulses S2 is greater than the number of pulses S1, the control chip 41 sends a signal to enable the motor 2 to drive the brush head 8 to brush teeth in the working mode, and when the number of pulses S2 is still less than the number of pulses S1, the switching working mode is entered again until the target working mode is switched; further, when the number of pulses S2 detected by the control chip 41 is equal to the number of pulses S1, the program proceeds to the next determination routine, which determines whether or not the time when the number of pulses S2 is equal to the number of pulses S1 is within a set time, returns to the standby state when the time when the number of pulses S2 is equal to the number of pulses S1 is within a predetermined time, and keeps the comparison between the number of pulses S2 and the number of pulses S1, and shuts down when the time when the number of pulses S2 is equal to the number of pulses S1 is not within the predetermined time.
In the above solution, the sensing of the pressure value of the brush head 8 starts according to the detection of the inlet of the brush head 8, specifically: according to different relative distances between the motor 2 and the induction coil 42, the number of pulses generated by the resonant capacitor in the induction coil 42 within a unit energy supply time is different, generally, if the distance is closer, the energy supply damping is larger, the energy attenuation is faster, and the number of pulses within a unit time is larger than that of pulses far away from the motor 2, so that before the energy disappears, the number of pulses within a unit time can be tested, and the more the number is obtained, the larger the damping is, the closer the pulse is indicated, or the duration of disappearance of the magnetic field is tested, and the shorter the duration is, the closer the pulse is indicated, and vice versa; therefore, the distance information between the motor 2 and the circuit board 3 in the toothbrush body 1 is obtained, and the pressure information of the brush head sensed when the brush head 8 enters the inlet can be calculated based on the distance information. According to the invention, the on-off operation of the electric toothbrush can be realized through necessary actions during tooth brushing without operating a key or a push button, the inlet is opened immediately and the outlet is stopped immediately, the touch sensing device 5 provides an awakening state, the possibility of toothbrush work caused by misoperation is greatly reduced, the operation is more intelligent and convenient, and the technological sense and the user experience are enhanced.
Generally, the front surface of the brush head 8 is contacted with teeth to be stressed, so that the motor 2 is close to the circuit board 3, namely, the energy attenuation of the induction coil 42 is more damped, therefore, the number of pulses S2 is greater than the number of pulses S1, and the back surface of the brush head 8 is stressed, so that the motor 2 is far away from the circuit board 3, namely, the energy attenuation of the induction coil 42 is less damped, therefore, the number of pulses S2 is less than the number of pulses S1.
In the invention, when the pulse number S2 is equal to the pulse number S1, the brush head 8 is not stressed or is stressed a little or the brush head 2 is separated from the contact with the teeth, the electric toothbrush is in a standby state within a set time, and the electric toothbrush is automatically turned off to save the electric quantity when the set time is exceeded. Certainly, after the toothbrush body 1 is held by hand to activate the electric toothbrush to enter the standby state, if the brush head 8 is not stressed within the set time, that is, the pulse number S2 is not generated, the electric toothbrush is automatically turned off to save the electric quantity. In this embodiment, when the number of pulses S2 is equal to the number of pulses S1, the toothbrush head 8 is not in contact with the teeth, or the force is small, or the toothbrush head 2 is not in contact with the teeth, the electric toothbrush is in a standby state within a set time, and the electric toothbrush is automatically turned off to save power. Certainly, after the toothbrush body 1 is held by hand to activate the electric toothbrush to enter the standby state, if the brush head 8 is not stressed within the set time, that is, the pulse number S2 is not generated, the electric toothbrush is automatically turned off to save the electric quantity. In this embodiment, the standby time is 30S, and meanwhile, when the continuous mode switching time exceeds 30S, the automatic shutdown is performed, so as to prevent the user from being injured due to wrong operation. Secondly, the electric toothbrush is provided with a tooth brushing time limit, the electric toothbrush can be automatically shut down after the motor 2 works for two minutes, the completion of tooth brushing is prompted to a user, the user is prevented from forgetting the time, tooth brushing is carried out for a long time, and the teeth are damaged, especially for old people and children. In this embodiment, the electric toothbrush has at least three modes of operation.
It should be understood that the above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.
Claims (8)
1. A method for button-less activation of an improved electric toothbrush, comprising: the toothbrush comprises a toothbrush body (1), a control chip (41) arranged on a circuit board (3) in the toothbrush body (1), an induction coil (42) which is arranged on the circuit board (3) and is controlled by the control chip (41) to generate a magnetic field, and a resonant capacitor for counting, wherein the induction coil (42) is controlled by the control chip (41) to work for 100 and 300 milliseconds and then is closed after energy is stored, and at the moment, the number S1 of harmonic oscillation pulses of the resonant capacitor in unit time before the energy disappears is recorded; when the brush head (8) on the toothbrush body (1) is in contact stress, the motor (2) is driven to approach or separate from the circuit board (3), so that the distance between the motor (2) and the induction coil (42) is changed, at the moment, the control chip (41) controls the induction coil (42) to work for 100 and 300 milliseconds and then is closed, and the number S2 of pulses of harmonic oscillation of the resonant capacitor in unit time before the energy disappears is recorded; and judging whether the brush head (8) is in contact with the teeth or not by comparing whether the pulse number S2 is equal to the pulse number S1 through the control chip (41), and further controlling the motor (2) to start and stop.
2. The method of claim 7, wherein the method comprises: when the control chip (41) compares the pulse number S2 with the pulse number S1 and the pulse number S2 is larger than the pulse number S1, the motor (2) starts to work;
when the number of pulses S2 is less than the number of pulses S1, the next judgment procedure is carried out, and whether the time that the number of pulses S2 is less than the number of pulses S1 is within a set time or not is judged;
when the time that the pulse number S2 is less than the pulse number S1 is within a specified time, the working mode is switched, and when the time that the pulse number S2 is less than the pulse number S1 is not within the specified time, the working mode returns to a standby state until the induction device (5) cannot detect the human body capacitance, and then the machine is turned off;
after finishing one-time working mode switching, the control chip (41) compares the pulse number S2 with the pulse number S1 again, when the pulse number S2 is greater than the pulse number S1, the motor (2) starts to work in the current working mode, when the pulse number S2 is less than the pulse number S1, whether the time that the pulse number S2 is less than the pulse number S1 is within the set time is judged again, if yes, the switching working mode is entered again, and if not, the standby state is entered until shutdown.
3. The method of claim 1, wherein the method comprises the steps of: when the control chip (41) compares the current (A2) with the pulse number S1 and the pulse number S2 is greater than the pulse number S1, the motor (2) starts to work;
when the pulse number S2 is smaller than the pulse number S1, switching the working mode, after completing one mode switching, comparing the pulse number S2 with the pulse number S1 again, if the pulse number S2 is larger than the pulse number S1, starting the motor (2) to work in the mode, and if the pulse number S2 is smaller than the pulse number S1, switching the working mode again;
and when the number of pulses S2 is equal to the number of pulses S1, the program proceeds to a next determination procedure, where whether the time when the number of pulses S2 is equal to the number of pulses S1 is within a set time, and when the time when the number of pulses S2 is equal to the number of pulses S1 is within a predetermined time, the program returns to a standby state, the comparison between the number of pulses S2 and the number of pulses S1 is always maintained, and when the time when the number of pulses S2 is equal to the number of pulses S1 is not within the predetermined time, the program is turned off.
4. A method of keyless activation of an improved electric toothbrush according to claim 2 or 3 wherein: the circuit board (3) is also provided with an induction device (5) which can wake up the electric toothbrush to be in a standby state by inducing human body capacitance.
5. The method of claim 4, wherein the method comprises the steps of: the induction device (5) is a touch induction device, a contact surface (11) corresponding to the induction device (5) is arranged on the outer wall of the toothbrush body (1), when a user holds the toothbrush body (1), the induction device (5) detects human body capacitance to activate the control chip (41), the induction coil (42) and the resonant capacitor to start working, so that the electric toothbrush enters a standby state, and the control chip (41) records the number of pulses S1 generated at the moment.
6. The method of claim 5, wherein the method comprises: the upper end of the motor (2) is provided with a front fixed cover (21) fixedly connected with the inner wall of the toothbrush body (1), and the lower end of the motor (2) is provided with a rear fixed cover (22) fixedly connected with the support inner frame (6).
7. The method of claim 6, wherein the method comprises: the toothbrush is characterized in that a supporting inner frame (6) used for supporting the motor (2) is arranged in the toothbrush body (1), the motor (2) is installed on the upper portion of the supporting inner frame (6), a battery (7) is further installed on the lower portion of the supporting inner frame (6), and the circuit board (3) is fixed on one side of the supporting inner frame (6).
8. The method of any one of claims 5-7, wherein the method comprises: the working frequency of the induction coil (42) is 20-30KHZ, the toothbrush body (1) is also provided with a detachable brush head (8), and the motor (2) is connected with the brush head (8) through a driving shaft (20) and drives the brush head (8) to work; drive shaft (20) stretch out toothbrush body (1), just drive shaft (20) are located an pot head in toothbrush body (1) is equipped with buckler (12), tail-hood (13) are installed to toothbrush body (1) bottom.
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| CN114587673B (en) | 2024-05-17 |
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