CN203724255U - Ultrasonic tooth tartar removal system - Google Patents
Ultrasonic tooth tartar removal system Download PDFInfo
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- CN203724255U CN203724255U CN201420066810.2U CN201420066810U CN203724255U CN 203724255 U CN203724255 U CN 203724255U CN 201420066810 U CN201420066810 U CN 201420066810U CN 203724255 U CN203724255 U CN 203724255U
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- circuit
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- frequency pulse
- operational amplifier
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- 208000006558 Dental Calculus Diseases 0.000 title abstract description 4
- 230000000295 complement effect Effects 0.000 claims abstract description 29
- 238000005070 sampling Methods 0.000 claims abstract description 22
- 230000005669 field effect Effects 0.000 claims description 21
- 239000003990 capacitor Substances 0.000 claims description 20
- 230000003750 conditioning effect Effects 0.000 claims description 10
- 238000004140 cleaning Methods 0.000 abstract description 5
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 230000001276 controlling effect Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 210000001519 tissue Anatomy 0.000 description 2
- 208000002064 Dental Plaque Diseases 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 210000004872 soft tissue Anatomy 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
The utility model discloses an ultrasonic tooth tartar removal system which comprises a resonance circuit, a transducer and a tooth cleaning work tip, wherein the resonance circuit mainly comprises a single-chip microcomputer, a power regulating circuit, a frequency regulating circuit , a fixed frequency pulse-width modulation circuit, an amplifying circuit, a sampling resistor R1 and a complementary push-pull circuit, wherein two output ends of the single-chip microcomputer are connected with two input ends of the fixed frequency pulse-width modulation circuit through the power regulating circuit and the frequency regulating circuit respectively; two output ends of the fixed frequency pulse-width modulation circuit are connected with two input ends of the complementary push-pull circuit; a sampling end of the complementary push-pull circuit is divided into two ways, one way is connected with the power ground through the resistor R1, and the other way is connected with an input end of the single-chip microcomputer; an output end of the complementary push-pull circuit is connected with the transducer; and the tooth cleaning work tip is mechanically connected with the transducer. With the adoption of the ultrasonic tooth tartar removal system, all that is required is a simple circuit structure, the ultrasonic transducer can be kept in a steady resonance state, so that the tooth cleaning comfort degree is effectively improved.
Description
Technical field
This utility model relates to a kind of dental care equipment, is specifically related to a kind of ultrasonic tooth scaler system.
Background technology
The principle of ultrasonic tooth scaler system is to utilize the operation tip of supersonic vibration to contact with dental surface, realizes the object of removing dental surface tartar, dental plaque by physical method.The mechanical energy that tooth scaler system need to be supersonic vibration by electric energy conversion with ultrasonic transducer, and in order to allow operation tip obtain stable oscillation power and efficiency, ultrasonic transducer preferably can be operated under resonance state constantly.But, in actual application, when being connected in operation tip on ultrasonic transducer and contacting with tissue of different nature (liquid, sclerous tissues, soft tissue etc.), its resonant frequency is vicissitudinous, if make the operation tip on tooth scaler system remain best duty, during operation, its frequency of vibration must change ultrasonic generator, to keep resonance state.
In order to realize this purpose, the resonant circuit structure of existing tooth scaler system generally all designs comparatively complicatedly, and the required circuit elements device using is more.The Chinese patent that is CN1368867A as publication number discloses a kind of power assistance device for ultrasonic vibration dental handpiece, comprise supply unit (1), two circuit, be ultrasonic generator and its terminal (S1, S2) operating circuit connecting, and control circuit, operating circuit comprises and is connected in parallel on its outfan (S1, S2) inductance (Ls), power supply (1) is suitable at outfan (A, B) provide with at input (I, J) the synchronous voltage of voltage (Vs) providing to it, control circuit is made up of an intensity transformation device (T2), its elementary (7) and operating circuit arranged in series, and its secondary (11) relative capacitors (13) and resistor (15) form a rlc circuit, this circuit arrives the input of described power supply (1) at the voltage supply of resistor (15) end, control circuit comprises the device of the value of the self-induction coil of value for changing capacitor (13) and/or changer (T2) secondary (11).
Utility model content
Technical problem to be solved in the utility model is to provide a kind of ultrasonic tooth scaler system, and the simple circuit structure of its need just can allow ultrasonic transducer remain on resonance state stably, thereby effectively improves the comfort level cleaning one's teeth.
For addressing the above problem, the ultrasonic tooth scaler system that this utility model is designed, comprises resonant circuit, transducer and the operation tip that cleans one's teeth, and resonant circuit is electrically connected with transducer, and operation tip and transducer mechanical connection clean one's teeth.Described resonant circuit is mainly by single-chip microcomputer, power conditioning circuitry, frequency adjustment circuit, fixed frequency pulse-width modulation circuit, amplifying circuit, sampling resistor R1 and complementary push-pull the electric circuit constitute.Wherein the first via PWM outfan of single-chip microcomputer is connected and fixed the first input end of frequency pulse width modulated circuit through power conditioning circuitry.The second road frequency tuned circuit of PWM outfan of single-chip microcomputer is connected and fixed the second input of frequency pulse width modulated circuit.The first outfan of fixed frequency pulse-width modulation circuit connects the first input end of complementary push-pull circuit, and the second outfan of fixed frequency pulse-width modulation circuit connects the second input of complementary push-pull circuit.The sampling end of complementary push-pull circuit is divided into 2 tunnels, and a road connects power supply ground through sampling resistor R1, and a road connects the input of single-chip microcomputer through amplifying circuit.The outfan of complementary push-pull circuit connects transducer.
In such scheme, described power conditioning circuitry comprises operational amplifier PA2, resistance R 4 and capacitor C 1.An input of the first low-pass filter circuit concatenation operation amplifier PA2 that the first via PWM outfan of single-chip microcomputer forms through resistance R 4 and capacitor C 1.The outfan of operational amplifier PA2 is divided into 2 tunnels, and the first input end of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA2 is returned on a road.
In such scheme, described frequency adjustment circuit comprises operational amplifier PA3, resistance R 6, resistance R 5 and capacitor C 2.An input of the second low-pass filter circuit concatenation operation amplifier PA3 that the first via PWM outfan of single-chip microcomputer forms through resistance R 5 and capacitor C 2.The outfan of operational amplifier PA3 is divided into 2 tunnels, and the second input of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA3 is returned on a road.Resistance R 6 one end are connected on the outfan of operational amplifier PA3, are connected one end and power supply.
In such scheme, described amplifying circuit comprises operational amplifier PA1, resistance R 2 and resistance R 3.An input of operational amplifier PA1 connects the sampling end of sampling resistor R1 and complementary push-pull circuit.Another input of operational amplifier PA1 is divided into 2 tunnels, and a road connects power supply ground through resistance R 3, and a road is through the outfan of resistance R 2 concatenation operation amplifier PA1.The outfan of operational amplifier PA1 connects the input of single-chip microcomputer.
In such scheme, described complementary push-pull circuit comprises 2 field effect transistor and transformator T.The grid of the first field effect transistor is connected and fixed the first outfan of frequency pulse width modulated circuit, and the grid of the second field effect transistor is connected and fixed the second outfan of frequency pulse width modulated circuit.After being connected, the source electrode of the first and second field effect transistor connects power supply ground through sampling resistor R1.Elementary one end of drain electrode connection transformer T of the first field effect transistor, the elementary other end of drain electrode connection transformer T of the second field effect transistor.The outfan of transformator T is connected with transducer.Two field effect transistor and transformator T composition complementary push-pull circuit, improve ultrasound wave delivery efficiency.
Above-mentioned ultrasonic tooth scaler system, also further comprises a capacitor C 3, and one end of this capacitor C 3 is connected and fixed frequency pulse width modulated circuit, and the other end connects power supply ground.
Compared with prior art, the designed ultrasonic tooth scaler system of this utility model has designed a resonant circuit simple in structure, with low cost; First this resonant circuit adopts negative-feedback technology, and the signal of sampling is fed back to single-chip microcomputer through low-pass filtering with after amplifying, thereby forms closed loop negative feedback system; Then, single-chip microcomputer output two-way pwm signal goes dutycycle and the frequency of oscillation of the output signal of controlling fixed frequency pulse-width modulation circuit, goes to drive ultrasonic transducer to realize the constant output of ultrasonic signal with the signal that makes fixed frequency pulse-width modulation circuit can export complementary push-pull formula.The resonant circuit of employing said structure not only ultrasonic signal simple in structure, that can make ultrasonic transducer export is more constant, thereby the duty that is arranged on the operation tip that cleans one's teeth on transducer is more steady, thereby improve to a great extent the comfort level cleaning one's teeth.
Brief description of the drawings
Fig. 1 is a kind of resonant circuit schematic diagram of ultrasonic tooth scaler system.
Detailed description of the invention
A kind of ultrasonic tooth scaler system, comprises resonant circuit, transducer and the operation tip that cleans one's teeth, and resonant circuit is electrically connected with transducer, and operation tip and transducer mechanical connection clean one's teeth.As shown in Figure 1, it is mainly by single-chip microcomputer, power conditioning circuitry, frequency adjustment circuit, fixed frequency pulse-width modulation circuit, capacitor C 3, amplifying circuit, sampling resistor R1 and complementary push-pull the electric circuit constitute for described resonant circuit.Wherein the first via PWM outfan of single-chip microcomputer is connected and fixed the first input end of frequency pulse width modulated circuit through power conditioning circuitry.The second road frequency tuned circuit of PWM outfan of single-chip microcomputer is connected and fixed the second input of frequency pulse width modulated circuit.The first outfan of fixed frequency pulse-width modulation circuit connects the first input end of complementary push-pull circuit, and the second outfan of fixed frequency pulse-width modulation circuit connects the second input of complementary push-pull circuit.The sampling end of complementary push-pull circuit is divided into 2 tunnels, and a road connects power supply ground through sampling resistor R1, and a road connects the input of single-chip microcomputer through amplifying circuit.One end of capacitor C 3 is connected and fixed frequency pulse width modulated circuit, and the other end connects power supply ground.The outfan of complementary push-pull circuit connects transducer.
Above-mentioned power conditioning circuitry comprises operational amplifier PA2, resistance R 4 and capacitor C 1.An input of the first low-pass filter circuit concatenation operation amplifier PA2 that the first via PWM outfan of single-chip microcomputer forms through resistance R 4 and capacitor C 1.The outfan of operational amplifier PA2 is divided into 2 tunnels, and the first input end of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA2 is returned on a road.
Said frequencies regulating circuit comprises operational amplifier PA3, resistance R 6, resistance R 5 and capacitor C 2.An input of the second low-pass filter circuit concatenation operation amplifier PA3 that the first via PWM outfan of single-chip microcomputer forms through resistance R 5 and capacitor C 2.The outfan of operational amplifier PA3 is divided into 2 tunnels, and the second input of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA3 is returned on a road.Resistance R 6 one end are connected on the outfan of operational amplifier PA3, are connected one end and power supply.
Above-mentioned amplifying circuit comprises operational amplifier PA1, resistance R 2 and resistance R 3.An input of operational amplifier PA1 connects the sampling end of sampling resistor R1 and complementary push-pull circuit.Another input of operational amplifier PA1 is divided into 2 tunnels, and a road connects power supply ground through resistance R 3, and a road is through the outfan of resistance R 2 concatenation operation amplifier PA1.The outfan of operational amplifier PA1 connects the input of single-chip microcomputer.
Above-mentioned complementary push-pull circuit comprises 2 field effect transistor and transformator T.The grid of the first field effect transistor is connected and fixed the first outfan of frequency pulse width modulated circuit, and the grid of the second field effect transistor is connected and fixed the second outfan of frequency pulse width modulated circuit.After being connected, the source electrode of the first and second field effect transistor connects power supply ground through sampling resistor R1.Elementary one end of drain electrode connection transformer T of the first field effect transistor, the elementary other end of drain electrode connection transformer T of the second field effect transistor.The outfan of transformator T is connected with transducer.Two field effect transistor and transformator T composition complementary push-pull circuit, improve ultrasound wave delivery efficiency.
The work process of resonant circuit of the present utility model is as follows:
Sampling resistor gathers the output of transducer, and passes through amplifying circuit negative feedback to single-chip microcomputer.The signal that single-chip microcomputer comes according to feedback is known the real time operation state of transducer, and sends 2 road pwm control signals.This 2 road pwm control signal Zhong mono-road signal is sent into fixed frequency pulse-width modulation circuit for controlling the dutycycle of output signal of fixed frequency pulse-width modulation circuit after power conditioning circuitry, after the frequency tuned circuit of another road pwm control signal, sends into fixed frequency pulse-width modulation circuit for controlling the frequency of oscillation of fixed frequency pulse-width modulation circuit.The signal of fixed frequency pulse-width modulation circuit output complementary push-pull formula, drives respectively 2 field effect transistor (MOS-FET) of drive circuit, and then drives ultrasonic transformator by transformator, realizes the ultrasound wave firm power output of ultrasonic transducer.
Claims (6)
1. ultrasonic tooth scaler system, comprises resonant circuit, transducer and the operation tip that cleans one's teeth, and resonant circuit is electrically connected with transducer, and operation tip and transducer mechanical connection clean one's teeth; It is characterized in that: described resonant circuit is mainly by single-chip microcomputer, power conditioning circuitry, frequency adjustment circuit, fixed frequency pulse-width modulation circuit, amplifying circuit, sampling resistor R1 and complementary push-pull the electric circuit constitute; Wherein the first via PWM outfan of single-chip microcomputer is connected and fixed the first input end of frequency pulse width modulated circuit through power conditioning circuitry; The second road frequency tuned circuit of PWM outfan of single-chip microcomputer is connected and fixed the second input of frequency pulse width modulated circuit; The first outfan of fixed frequency pulse-width modulation circuit connects the first input end of complementary push-pull circuit, and the second outfan of fixed frequency pulse-width modulation circuit connects the second input of complementary push-pull circuit; The sampling end of complementary push-pull circuit is divided into 2 tunnels, and a road connects power supply ground through sampling resistor R1, and a road connects the input of single-chip microcomputer through amplifying circuit; The outfan of complementary push-pull circuit connects transducer.
2. ultrasonic tooth scaler system according to claim 1, is characterized in that: described power conditioning circuitry comprises operational amplifier PA2, resistance R 4 and capacitor C 1; An input of the first low-pass filter circuit concatenation operation amplifier PA2 that the first via PWM outfan of single-chip microcomputer forms through resistance R 4 and capacitor C 1; The outfan of operational amplifier PA2 is divided into 2 tunnels, and the first input end of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA2 is returned on a road.
3. ultrasonic tooth scaler system according to claim 1, is characterized in that: described frequency adjustment circuit comprises operational amplifier PA3, resistance R 6, resistance R 5 and capacitor C 2; An input of the second low-pass filter circuit concatenation operation amplifier PA3 that the second road PWM outfan of single-chip microcomputer forms through resistance R 5 and capacitor C 2; The outfan of operational amplifier PA3 is divided into 2 tunnels, and the second input of fixed frequency pulse-width modulation circuit is directly inputted on a road, and another input of operational amplifier PA3 is returned on a road; Resistance R 6 one end are connected on the outfan of operational amplifier PA3, are connected one end and power supply.
4. ultrasonic tooth scaler system according to claim 1, is characterized in that: described amplifying circuit comprises operational amplifier PA1, resistance R 2 and resistance R 3; An input of operational amplifier PA1 connects the sampling end of sampling resistor R1 and complementary push-pull circuit; Another input of operational amplifier PA1 is divided into 2 tunnels, and a road connects power supply ground through resistance R 3, and a road is through the outfan of resistance R 2 concatenation operation amplifier PA1; The outfan of operational amplifier PA1 connects the input of single-chip microcomputer.
5. ultrasonic tooth scaler system according to claim 1, is characterized in that: described complementary push-pull circuit comprises 2 field effect transistor and transformator T; The grid of the first field effect transistor is connected and fixed the first outfan of frequency pulse width modulated circuit, and the grid of the second field effect transistor is connected and fixed the second outfan of frequency pulse width modulated circuit; After being connected, the source electrode of the first and second field effect transistor connects power supply ground through sampling resistor R1; Elementary one end of drain electrode connection transformer T of the first field effect transistor, the elementary other end of drain electrode connection transformer T of the second field effect transistor; The outfan of transformator T is connected with transducer.
6. ultrasonic tooth scaler system according to claim 1, is characterized in that: also further comprise a capacitor C 3, one end of this capacitor C 3 is connected and fixed frequency pulse width modulated circuit, and the other end connects power supply ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066810.2U CN203724255U (en) | 2014-02-14 | 2014-02-14 | Ultrasonic tooth tartar removal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066810.2U CN203724255U (en) | 2014-02-14 | 2014-02-14 | Ultrasonic tooth tartar removal system |
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| Publication Number | Publication Date |
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| CN203724255U true CN203724255U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066810.2U Ceased CN203724255U (en) | 2014-02-14 | 2014-02-14 | Ultrasonic tooth tartar removal system |
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| Country | Link |
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| CN (1) | CN203724255U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739531A (en) * | 2015-04-27 | 2015-07-01 | 桂林市啄木鸟医疗器械有限公司 | Output power conditioning circuit and ultrasonic dental descaler output power conditioning method |
| CN104758071A (en) * | 2015-04-27 | 2015-07-08 | 桂林市啄木鸟医疗器械有限公司 | Power regulation circuit and ultrasonic tooth cleaner power regulation method |
| CN109394374A (en) * | 2018-12-30 | 2019-03-01 | 常州赛乐医疗技术有限公司 | A kind of root canal, which is swung, washes device |
-
2014
- 2014-02-14 CN CN201420066810.2U patent/CN203724255U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104739531A (en) * | 2015-04-27 | 2015-07-01 | 桂林市啄木鸟医疗器械有限公司 | Output power conditioning circuit and ultrasonic dental descaler output power conditioning method |
| CN104758071A (en) * | 2015-04-27 | 2015-07-08 | 桂林市啄木鸟医疗器械有限公司 | Power regulation circuit and ultrasonic tooth cleaner power regulation method |
| CN104758071B (en) * | 2015-04-27 | 2016-06-08 | 桂林市啄木鸟医疗器械有限公司 | A kind of power conditioning circuitry and ultrasonic cavitron power regulating method |
| CN109394374A (en) * | 2018-12-30 | 2019-03-01 | 常州赛乐医疗技术有限公司 | A kind of root canal, which is swung, washes device |
| CN109394374B (en) * | 2018-12-30 | 2024-05-10 | 常州赛乐医疗技术有限公司 | Root canal swinging and washing device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230303 Decision number of declaring invalidation: 560310 Granted publication date: 20140723 |
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| IW01 | Full invalidation of patent right |