CN103447221B - Efficient energy-saving method for micro ultrasonic generator - Google Patents
Efficient energy-saving method for micro ultrasonic generator Download PDFInfo
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- CN103447221B CN103447221B CN201210181437.0A CN201210181437A CN103447221B CN 103447221 B CN103447221 B CN 103447221B CN 201210181437 A CN201210181437 A CN 201210181437A CN 103447221 B CN103447221 B CN 103447221B
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Abstract
Provided is an efficient energy-saving method for a micro ultrasonic generator. Multifunctional ultrasonic waves are generated by utilizing a switch-type power amplification technology, a switch-type control execution technology and an oscillator switching frequency technology. The ultrasonic generator is mainly formed by an oscillator, a machine body, a main circuit and a power switch operating circuit. A working mode of the micro ultrasonic generator is that combination signal control is set by machine starting, ultrasonic driving signal are generated through given frequencies, interval time and power, and the ultrasonic waves are output from a selected working end-oscillator structure tip. Under the working selection of a first frequency, a working end-oscillator structure of an oscillator impedor with the first frequency is put into use; under the working selection of a second frequency, a working end-oscillator structure of an oscillator impedor with the second frequency is put into use; and under the working selection of a third frequency, a working end-oscillator structure of an oscillator impedor with the third frequency is put into use.
Description
Technical field
The present invention relates to and a kind ofly improve the method for miniature ultrasonic wave generating device efficiency and energy-saving circuit implementing method thereof.
Background technology
In existing low-power miniature ultrasonic wave generating device, many proprietary application kinds, as portable, pocket type supersonic care appliance, drug-treated apparatus, biological treatment, experimental rig etc., to require as moving flexibly, changeable and do not rely on fixing mains supply.This just means, except device small and exquisite, compact except, the power conservation requirement of high effect is particularly important.Given this, be necessary to research and develop a kind of new high-efficiency and energy-saving type miniature ultrasonic method for generation, make developed device with minimum power consumption, the highest task performance can be produced, simultaneously control action time, power and frequency, to improve service behaviour in application process and economic benefit.Meanwhile, in application, also requirement can provide the ultrasonic wave of multiple various combination to export, for system provides several working ways, to reduce the quantity of experiment Instrumental use and to reduce application cost.In addition, health care in this kind of device, rehabilitation assistive device are extensively suitable for function with it, as the ultrasonic frequency etc. that lower powered mechanical wave, safety have no side effect, be highly suitable for the various crowds comprising health care demand, so that the demand proposing family, apply with oneself, at any time, everywhere.This means the ultrasonic unit of portable, easy to operate, to be applicable to various crowd extensive adaptive type treatment, physiotherapy, rehabilitation and health care, if possess efficient, energy-conservation feature, extensive call must be subject to.Therefore, the high energy efficiency power-economizing method that such improves miniature ultrasonic wave producer is is urgently researched and developed.
Summary of the invention
For meet ultrasonic generator small and exquisite, compact outside, efficient, energy-conservation widespread demand, the invention provides a kind of high energy efficiency power-economizing method of miniature ultrasonic wave producer.It uses switching power amplifying technique, switching mode control execution technique and oscillator switching frequency technology there is multifunction ultrasonic.Supersonic generator is formed primarily of oscillator, body, main circuit and power switching operations circuit.Its working method controls for arranging composite signal by start, with given frequency, intermittent time and power generation ultrasonic wave drive singal, from the most advanced and sophisticated output ultrasonic wave of selected working end-oscillator structure.Under frequency 1 works and selects, there is working end-oscillator structure that frequency 1 keeps off oscillator impedance and come into operation; Under frequency 2 works and selects, there is working end-oscillator structure that frequency 2 keeps off oscillator impedance and come into operation; Under frequency 3 works and selects, there is working end-oscillator structure that frequency 3 keeps off oscillator impedance and come into operation.
The technical solution adopted for the present invention to solve the technical problems is:
In the left side of casing operating board structure, have oblate post box-like concave oscillator installation opening.The cylinder side wall of installation opening is shaped with installation internal thread, and installing internal thread is the normal structure of surface through the anti-skidding process of retaining.The bottom surface of installation opening is divided into center, inner ring, middle ring and outer shroud from inside to outside.Bottom center's assembly of installation opening has center to rub contact terminal, and the bottom surface outer shroud assembly of installation opening has the outer contact terminal F that rubs
1, in the bottom surface of installation opening, ring assembly rubs in having contact terminal F
2, rub in the bottom surface inner ring assembly of installation opening has contact terminal F
3; Rub contact terminal and the contact terminal F that rubs outward at center
1, in rub contact terminal F
2, in rub contact terminal F
3be the spherical crown cyclic spring contact that the phosphor-copper material through surperficial antifriction process is made, contact surface forward.At the bottom surface outer shroud of installation opening, near installation internal thread, frequency 1 controlling functions operation sliding pressure key is installed; Ring in the bottom surface of installation opening, is provided with frequency 2 controlling functions operation sliding pressure key; In the bottom surface inner ring of installation opening, frequency 3 controlling functions operation sliding pressure key is installed; Frequency 1 controlling functions operation sliding pressure key, frequency 2 controlling functions operation sliding pressure key and frequency 3 controlling functions operation sliding pressure key are miniature fine motion wiping switch bounce sliding pressure key.
Under the frequency F, the pattern M that arrange in start and power P combination control signal, the ultrasonic wave drive singal of given frequency, intermittent time and power is occurred by system, and from the most advanced and sophisticated output ultrasonic wave of working end oscillator structure.
Under frequency 1 works selection, there is frequency 1 and keep off oscillator impedance Z
1working end oscillator structure come into operation, namely frequency 1 keeps off oscillator impedance Z
1a side terminal be connected to the outer contact terminal F that rubs
1, opposite side terminals ground connection; Under frequency 2 works selection, there is frequency 2 and keep off oscillator impedance Z
2working end oscillator structure come into operation, namely frequency 2 keeps off oscillator impedance Z
2a side terminal be connected in rub contact terminal F
2, opposite side terminals ground connection; Under frequency 3 works selection, there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure come into operation, namely frequency 3 keeps off oscillator impedance Z
3a side terminal be connected in rub contact terminal F
3, opposite side terminals ground connection.
Frequency F for start is arranged: if select frequency 1, then there is frequency 1 and keep off oscillator impedance Z
1working end-oscillator structure 1 come into operation, make frequency 1 controlling functions operate sliding pressure key key and be depressed, namely frequency 1 keeps off sliding pressure make and break contact K
f1connect, thus 50kHz ultrasonic signal occurs, frequency 1 keeps off oscillator impedance Z simultaneously
1by the interior contact terminal F that rubs
1access ultrasonic wave drive singal coupling output loop.If select frequency 2, then there is frequency 2 and keep off oscillator impedance Z
2working end-oscillator structure 1 come into operation, make frequency 2 controlling functions operate sliding pressure key key and be depressed, namely frequency 2 keeps off sliding pressure make and break contact K
f2connect, thus 75kHz ultrasonic signal occurs, frequency 2 keeps off oscillator impedance Z simultaneously
2by the interior contact terminal F that rubs
2access ultrasonic wave drive singal coupling output loop.If select frequency 3, then there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure 1 come into operation, make frequency 3 controlling functions operate sliding pressure key key and be depressed, namely frequency 3 keeps off sliding pressure make and break contact K
f3connect, thus 100kHz ultrasonic signal occurs, frequency 3 keeps off oscillator impedance Z simultaneously
3by the interior contact terminal F that rubs
3access ultrasonic wave drive singal coupling output loop.
The pattern M arranged for start selects: if pressed 1 Schema control feature operation button, i.e. mode control switch contact K in 1 second
mconnect 1 time, then long pause control signal occurs, and makes ultrasonic wave drive singal cyclical intermission 1 second; If pressed 2 Schema control feature operation buttons, i.e. mode control switch contact K in 1 second
mconnect 2 times, then short tapping mode signal occurs, and makes ultrasonic wave drive singal cyclical intermission 0.5 second; If pressed 3 Schema control feature operation buttons, i.e. mode control switch contact K in 1 second
mconnect 3 times, then Non-intermittent control signal occurs, and makes ultrasonic wave drive singal Non-intermittent.
The power P arranged for start is selected: if pressed 1 control function of power operation push-button in 1 second, i.e. power control switching contact K
pconnect 1 time, then weak power control signal occurs, and makes ultrasonic wave drive singal mate 0.1W power stage; If pressed 2 control function of power operation push-buttons in 1 second, i.e. power control switching contact K
pconnect 2 times, then in, power control signal occurs, and makes ultrasonic wave drive singal mate 0.2W power stage; If pressed 3 control function of power operation push-buttons in 1 second, i.e. power control switching contact K
pconnect 3 times, then high power control signal occurs, and makes ultrasonic wave drive singal mate 0.3W power stage.
The invention has the beneficial effects as follows: a kind of new high-efficiency and energy-saving type miniature ultrasonic wave generating device and implementation method thereof, energy is control action time, power and frequency simultaneously; The ultrasonic wave of multiple various combination can be provided to export.Its circuit is a kind of ultrasonic wave driving power circuit of high performance-price ratio, its Buck pattern formula, power control mode, oscillation switching mode, switching power amplify mode, OTL output matching structure and simple circuit structure and efficiency and cost performance are improved greatly, transducing oscillator can be driven effectively, efficiently support functional realiey.The device developed can make volume less, application is more flexible, and its portable, easy-operating feature is widely used in treatments, physiotherapy, rehabilitation, health care, and the various crowd such as drug-treated, instrument cleaning, medical treatment situation are applied, and scientific research institutions, the place application such as experimental bench.The pure hardware formation of system makes maintenance, repair simple and easy to do; Be convenient to assembling, adjustment and test; Body and circuit structure simply, are easy to batch production.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the efficient configuration outward appearance front view of the embodiment of the present invention-miniature ultrasonic wave producer.
Fig. 2 is the efficient configuration oscillator installation opening topology view of miniature ultrasonic wave producer.
Fig. 3 is the efficient circuits structured flowchart of miniature ultrasonic wave producer.
Fig. 4 is the efficient main circuit structure figure of miniature ultrasonic wave producer.
Fig. 5 is the assembling end structure view of miniature ultrasonic frequency 1 oscillator.
Fig. 6 is miniature ultrasonic frequency 1 oscillator structure sectional view (locally).
Fig. 7 is the assembling end structure view of miniature ultrasonic frequency 2 oscillator.
Fig. 8 is miniature ultrasonic frequency 2 oscillator structure sectional view (locally).
Fig. 9 is the assembling end structure view of miniature ultrasonic frequency 3 oscillator.
Figure 10 is miniature ultrasonic frequency 3 oscillator structure sectional view (locally).
Figure 11 is miniature ultrasonic oscillator structure sectional view (locally).
Figure 12 is the workflow diagram of miniature ultrasonic wave producer.
In Fig. 1 ~ 11: 1. working end-oscillator structure, 2. casing operating board structure, 3. Schema control feature operation button, 4. control function of power operation push-button, 5. power switch dials handle, 6. power supply instruction look face, 7. power gear level indicator lamp, 8. frequency gear level indicator lamp, 9. pattern gear level indicator lamp.
In Fig. 2 ~ 12: 2.1. installs internal thread, 2.2. rubs at center contact terminal, F
1for the contact terminal that rubs outward, 2.3. frequency 1 controlling functions operation sliding pressure key, F
2for in rub contact terminal, 2.4.. frequency 2 controlling functions operation sliding pressure key, F
3for the interior contact terminal that rubs, 2.5. frequency 3 controlling functions operation sliding pressure key.
In Fig. 3,4,12: M
oPfor mode control operation functional module, F
oPfor frequency control operation functional module, P
oPfor power control operation functional module, H
osfor main functional modules; E is working power positive terminal, K
mfor mode control switch contact, M is pulse control signal terminals, K
f1for frequency 1 keeps off sliding pressure make and break contact, K
f2for frequency 2 keeps off sliding pressure make and break contact, K
f3for frequency 3 keeps off sliding pressure make and break contact, K
pfor power control switching contact, P is chopping control signal terminals, and K is power switch contact, B
atfor battery, S
ocfor charging socket.
In the diagram: R
m1for pattern long pause gear level indicator lamp pull-up resistor, R
m2for pattern short interval gear level indicator lamp pull-up resistor, R
m3for pattern Non-intermittent gear level indicator lamp pull-up resistor, R
p1for power weak gear level indicator lamp pull-up resistor, R
p2for keeping off level indicator lamp pull-up resistor in power, R
p3for power keeps off by force a grade indicator lamp pull-up resistor, R
f1for frequency 1 keeps off level indicator lamp pull-up resistor, R
f2for frequency 2 keeps off level indicator lamp pull-up resistor, R
f3for frequency 3 keeps off level indicator lamp pull-up resistor; D
m1for pattern long pause gear level LED light, D
m2for pattern short interval gear level LED light, D
m3for pattern Non-intermittent gear level LED light, D
f1for frequency 1 keeps off level LED light, D
f2for frequency 2 keeps off level LED light, D
f3for frequency 3 keeps off level LED light, D
p1for power weak gear level LED light, D
p2for keeping off level LED light in power, D
p3for power keeps off by force a grade LED light; C
p1for upper starting of oscillation electric capacity, C
p2for lower starting of oscillation electric capacity, C
ffor crystal oscillator.U is singlechip chip.Z
1for frequency 1 keeps off oscillator impedance, Z
2for frequency 2 keeps off oscillator impedance, Z
3for frequency 3 keeps off oscillator impedance; L
o1for large resonant inductance, L
o2for middle resonant inductance, L
o3for little resonant inductance.D
pfor chop control and gate diode, D
mtapping mode and gate diode; R
ebfor Chopper driving base electrode bias resistance, R
egfor chopping switch MOSFET element grid bias resistance, Q
efor chopping switch MOSFET element, R
ecfor Chopper driving collector load resistor, T
efor Chopper driving triode, D
efor voltage stabilizing fly-wheel diode, L
efor flat ripple inductance, C
efor flat wave capacitor.R
1Ffor upper coupling resistance, R
2Ffor lower coupling resistance, Q
1Ffor upper switching MOSFET device, Q
2Ffor lower switching MOSFET device; O
dfor drive singal coupling output.R
r1for reset charging resistor, C
rfor reset buffer capacitor, R
r2for reset discharge resistance, K
rfor reset operation single-button.
In Fig. 5 ~ 11: 1.1. installs external screw thread, 1.2. rub tactile disk at center, 1.3. the stupefied tactile ring that rubs of outer sliding pressure, the stupefied tactile ring that rubs of sliding pressure in 1.4., the stupefied tactile ring that rubs of sliding pressure in 1.5., 1.6. diaphragm lead-in wire, 1.7. piezoelectricity conversion diaphragm, 1.8. transducer-ultrasonic transformer structure, 1.9. sheath, 1.10. transducer-base construction, 1.11. based shell.
Detailed description of the invention
In the efficient configuration outward appearance front view of the embodiment of the present invention shown in Fig. 1-miniature ultrasonic wave producer: working end-oscillator structure 1 is assemblied in the left end of casing operating board structure 2.In the front of casing operating board structure 2, assemble film-type Schema control feature operation button 3, film-type control function of power operation push-button 4 and power switch from left to right successively and dial handle 5.Dial handle 5 top at the power switch of casing operating board structure 2 front right-hand member, be furnished with power supply instruction look face 6; Control function of power operation push-button 4 top of right-hand member in casing operating board structure 2 front, is furnished with power gear level indicator lamp 7; Schema control feature operation button 3 top of left end in casing operating board structure 2 front, is furnished with pattern gear level indicator lamp 9; Control function of power operation push-button 4 in casing operating board structure 2 front and power thereof keep off level indicator lamp 7 and Schema control feature operation button 3 and pattern thereof and keep off between level indicator lamp 9, are furnished with FREQUENCY CONTROL function and indicate and frequency gear level indicator lamp 8.
In the efficient configuration oscillator installation opening topology view of the miniature ultrasonic wave producer shown in the miniature ultrasonic wave producer efficient configuration outward appearance front view shown in Fig. 1 and Fig. 2: in the left side of casing operating board structure 2, have oblate post box-like concave oscillator installation opening.The cylinder side wall of installation opening is shaped with installs internal thread 2.1, and installing internal thread 2.1 is the normal structure of surface through the anti-skidding process of retaining.The bottom surface of installation opening is divided into center, inner ring, middle ring and outer shroud from inside to outside.Bottom center's assembly of installation opening has center to rub contact terminal 2.2, and the bottom surface outer shroud assembly of installation opening has the outer contact terminal F that rubs
1, in the bottom surface of installation opening, ring assembly rubs in having contact terminal F
2, rub in the bottom surface inner ring assembly of installation opening has contact terminal F
3; Rub contact terminal 2.2 and the contact terminal F that rubs outward at center
1, in rub contact terminal F
2, in rub contact terminal F
3be the spherical crown cyclic spring contact that the phosphor-copper material through surperficial antifriction process is made, contact surface forward.At the bottom surface outer shroud of installation opening, near installation internal thread 2.1, frequency 1 controlling functions operation sliding pressure key 2.3 is installed; Ring in the bottom surface of installation opening, is provided with frequency 2 controlling functions operation sliding pressure key 2.4; In the bottom surface inner ring of installation opening, frequency 3 controlling functions operation sliding pressure key 2.5 is installed; Frequency 1 controlling functions operation sliding pressure key 2.3, frequency 2 controlling functions operation sliding pressure key 2.4 and frequency 3 controlling functions operation sliding pressure key 2.5 are miniature fine motion wiping switch bounce sliding pressure key.
In the efficient main circuit structure figure of the miniature ultrasonic wave producer shown in the efficient circuits structured flowchart of the miniature ultrasonic wave producer shown in the miniature ultrasonic wave producer efficient configuration outward appearance front view shown in Fig. 1, Fig. 3 and Fig. 4: power gear level indicator lamp 7 comprises pattern long pause gear level LED light D
m1, pattern short interval gear level LED light D
m2with pattern Non-intermittent gear level LED light D
m3, frequency gear level indicator lamp 8 comprises frequency 1 and keeps off level LED light D
f1, frequency 2 keeps off level LED light D
f2, frequency 3 keeps off level LED light D
f3, pattern gear level indicator lamp 9 comprises power weak gear level LED light D
p1, keep off level LED light D in power
p2a grade LED light D is kept off by force with power
p3.
In the embodiment of the present invention accompanying drawing shown in Fig. 1 ~ 12: under frequency 1 works selection, there is frequency 1 and keep off oscillator impedance Z
1working end-oscillator structure 1 come into operation, namely frequency 1 keeps off oscillator impedance Z
1a side terminal be connected to the outer contact terminal F that rubs
1, opposite side terminals ground connection; Under frequency 2 works selection, there is frequency 2 and keep off oscillator impedance Z
2working end-oscillator structure 1 come into operation, namely frequency 2 keeps off oscillator impedance Z
2a side terminal be connected in rub contact terminal F
2, opposite side terminals ground connection; Under frequency 3 works selection, there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure 1 come into operation, namely frequency 3 keeps off oscillator impedance Z
3a side terminal be connected in rub contact terminal F
3, opposite side terminals ground connection.
In the miniature ultrasonic wave producer efficient circuits structure chart shown in the miniature ultrasonic wave producer efficient configuration view shown in Fig. 1,2, Fig. 3,4 and the miniature ultrasonic wave producer workflow diagram shown in Figure 12:
Frequency F for start is arranged: if select frequency 1, then there is frequency 1 and keep off oscillator impedance Z
1working end-oscillator structure 1 come into operation, make frequency 1 controlling functions operate sliding pressure key 2.3 key and be depressed, namely frequency 1 keeps off sliding pressure make and break contact K
f1connect, thus 50kHz ultrasonic signal occurs, frequency 1 keeps off oscillator impedance Z simultaneously
1by the interior contact terminal F that rubs
1access ultrasonic wave drive singal coupling output loop.If select frequency 2, then there is frequency 2 and keep off oscillator impedance Z
2working end-oscillator structure 1 come into operation, make frequency 2 controlling functions operate sliding pressure key 2.4 key and be depressed, namely frequency 2 keeps off sliding pressure make and break contact K
f2connect, thus 75kHz ultrasonic signal occurs, frequency 2 keeps off oscillator impedance Z simultaneously
2by the interior contact terminal F that rubs
2access ultrasonic wave drive singal coupling output loop.If select frequency 3, then there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure 1 come into operation, make frequency 3 controlling functions operate sliding pressure key 2.5 key and be depressed, namely frequency 3 keeps off sliding pressure make and break contact K
f3connect, thus 100kHz ultrasonic signal occurs, frequency 3 keeps off oscillator impedance Z simultaneously
3by the interior contact terminal F that rubs
3access ultrasonic wave drive singal coupling output loop.
At the efficient configuration outward appearance front view of the embodiment of the present invention shown in Fig. 1-miniature ultrasonic wave producer with in Figure 11 miniature ultrasonic oscillator structure sectional view (locally): the working end-oscillator structure 1 of miniature ultrasonic wave producer is connected rotation body structure for many curves.Wherein transducer-ultrasonic transformer structure 1.8 is the hyperbola rotary body be made up of titanium alloy material, and its tip is ul-trasonic irradiation point (face), and tailstock end is ultrasonic wave generating plane; It is diaphragm shape piezoelectric transducer part with piezoceramic material into core that piezoelectricity changes diaphragm 1.7, and two diaphragm lead-in wires 1.6 are its electric energy input lead; Based shell 1.11 is the circular cylindrical shell body be made up of heat cured insulation material; Transducer-base construction 1.10 is the cylinder made through the stainless steel material of die casting process, and each surface is through cure process, and rearward end makes ellipsoid; Sheath 1.9 is the cover film body be made up of flexible elastic material.Transducer-ultrasonic transformer structure 1.8 coordinates with the coaxial front and back of transducer-base construction 1.10, and in the middle part of two parts interlayers, two-sided tight rigidity pastes piezoelectricity conversion diaphragm 1.7, seals outward with non-rigid adhesive.The interior nest wall postmedian of based shell 1.11 and the side of transducer-base construction 1.10, below rigidity are pasted, the non-rigid stickup of side back segment of interior nest wall front portion and transducer-ultrasonic transformer structure 1.8.Transducer-ultrasonic transformer structure 1.8 overcoat sheath 1.10, the rear end of sheath 1.9 and the front end face of based shell 1.11 bond.
In the miniature ultrasonic wave producer workflow diagram shown in the embodiment of the present invention shown in Fig. 1-miniature ultrasonic wave producer efficient configuration outward appearance front view and Figure 12:
The pattern M arranged for start selects: if pressed 1 Schema control feature operation button 3, i.e. mode control switch contact K in 1 second
mconnect 1 time, then long pause control signal occurs, and makes ultrasonic wave drive singal cyclical intermission 1 second; If pressed 2 Schema control feature operation buttons 3, i.e. mode control switch contact K in 1 second
mconnect 2 times, then short tapping mode signal occurs, and makes ultrasonic wave drive singal cyclical intermission 0.5 second; If pressed 3 Schema control feature operation buttons 3, i.e. mode control switch contact K in 1 second
mconnect 3 times, then Non-intermittent control signal occurs, and makes ultrasonic wave drive singal Non-intermittent.
The power P arranged for start is selected: if pressed 1 control function of power operation push-button 4 in 1 second, i.e. power control switching contact K
pconnect 1 time, then weak power control signal occurs, and makes ultrasonic wave drive singal mate 0.1W power stage; If pressed 2 control function of power operation push-buttons 4 in 1 second, i.e. power control switching contact K
pconnect 2 times, then in, power control signal occurs, and makes ultrasonic wave drive singal mate 0.2W power stage; If pressed 3 control function of power operation push-buttons 4 in 1 second, i.e. power control switching contact K
pconnect 3 times, then high power control signal occurs, and makes ultrasonic wave drive singal mate 0.3W power stage.
Under the frequency F, the pattern M that arrange in start and power P combination control signal, the ultrasonic wave drive singal of given frequency, intermittent time and power is occurred by system, and from the most advanced and sophisticated output ultrasonic wave of working end-oscillator structure 1.
In the miniature ultrasonic oscillator structure view shown in the efficient configuration oscillator installation opening topology view of the miniature ultrasonic wave producer shown in Fig. 2 and Fig. 5 ~ 10: external screw thread 1.1 is installed and internal thread 2.1 is installed forms and be slidably matched.Center tactile disk 1.2 and the center contact terminal 2.2 that rubs that rubs forms electrical contact and is slidably matched.
In the miniature ultrasonic 3 oscillator structure view shown in the efficient configuration oscillator installation opening topology view of the miniature ultrasonic wave producer shown in Fig. 2 and Fig. 5,6: stupefied tactile ring 1.3 and the contact terminal F that rubs outward of rubbing of outer sliding pressure
1form with frequency 1 controlling functions operation sliding pressure key 2.3 and be slidably matched, and with the contact terminal F that rubs outward
1electrical contact.
In the miniature ultrasonic frequency 2 oscillator structure view shown in the efficient configuration oscillator installation opening topology view of the miniature ultrasonic wave producer shown in Fig. 2 and Fig. 7,8: middle sliding pressure is stupefied rub tactile ring 1.4 with in rub contact terminal F
2form with frequency 2 controlling functions operation sliding pressure key 2.4 and be slidably matched, its with in rub contact terminal F
21electrical contact.
In the miniature ultrasonic frequency 3 oscillator structure view shown in the efficient configuration oscillator installation opening topology view of the miniature ultrasonic wave producer shown in Fig. 2 and Fig. 9,10: stupefied tactile ring 1.5 and the interior contact terminal F that rubs of rubbing of interior sliding pressure
3form with frequency 3 controlling functions operation sliding pressure key 2.5 and be slidably matched, and with the interior contact terminal F that rubs
3electrical contact.
In the miniature ultrasonic wave producer efficient circuits structured flowchart shown in Fig. 3: supersonic generator functional module is primarily of main functional modules H
oSwith mode control operation functional module M
oP, frequency control operation functional module F
oP, power control operation functional module P
oPform.Main functional modules H
oSby pulse control signal terminals M and common ground end and mode control operation functional module M
oPconnect, by the contact terminal F that rubs outward
1, in rub contact terminal F
2, in rub contact terminal F
3with common ground end and frequency control operation functional module F
oPconnect, by chopping control signal terminals P and common ground end and power control operation functional module P
oPconnect; Working power positive terminal E and common ground end are connected to main functional modules H
oS, mode control operation functional module M
oP, frequency control operation functional module F
oPwith power control operation functional module P
oP.Mode control operation functional module M
oPwith power control operation functional module P
oPrespectively by mode control switch contact K
mwith power control switching contact K
pform to operate with Schema control feature operation button 3 and control function of power operation push-button 4 and be connected; Frequency control operation functional module F
oPsliding pressure make and break contact K is kept off by frequency 1
f1, frequency 2 keeps off sliding pressure make and break contact K
f2, frequency 3 keeps off sliding pressure make and break contact K
f3, operate sliding pressure key 2.3 with frequency 1 controlling functions respectively, frequency 2 controlling functions operate sliding pressure key 2.4 and frequency 3 controlling functions operates sliding pressure key 2.5 and forms to operate and be connected.Battery B
atwith charging socket S
ocwith being extremely connected in parallel, this tie point minus earth, the power switch contact K that positive pole passes through is connected to working power positive terminal E, i.e. battery B
atwith charging socket S
ocand joint group positive terminal form to operate with working power positive terminal E be connected by power switch button 5.
In the miniature ultrasonic wave producer efficient main circuit structure figure shown in the miniature ultrasonic wave producer efficient circuits structured flowchart shown in Fig. 3 and Fig. 4: the efficient main circuit of miniature ultrasonic wave producer adopts Atmega8 type singlechip chip U as core devices, with peripheral circuit construction system hardware, realize main functional modules H by the corresponding program of systems soft ware
oSwith mode control operation functional module M
oP, frequency control operation functional module F
oP, power control operation functional module P
oPsystemic-function.
In the efficient main circuit structure figure of the miniature ultrasonic wave producer shown in Fig. 4:
Pattern long pause gear level indicator lamp pull-up resistor R
m1, pattern short interval gear level indicator lamp pull-up resistor R
m2, pattern Non-intermittent gear level indicator lamp pull-up resistor R
m3, power weak gear level indicator lamp pull-up resistor R
p1, keep off level indicator lamp pull-up resistor R in power
p2, power keeps off by force a grade indicator lamp pull-up resistor R
p3, frequency 1 keeps off level indicator lamp pull-up resistor R
f1, frequency 2 keeps off level indicator lamp pull-up resistor R
f2, frequency 3 keeps off level indicator lamp pull-up resistor R
f3level LED light D is kept off respectively with pattern long pause
m1, pattern short interval gear level LED light D
m2, pattern Non-intermittent gear level LED light D
m3, frequency 1 keeps off level LED light D
f1, frequency 2 keeps off level LED light D
f2, frequency 3 keeps off level LED light D
f3, power weak gear level LED light D
p1, keep off level LED light D in power
p2, power keeps off by force a grade LED light D
p3series connection, LED negative pole one end of corresponding series arm is connected with PD0, PD1, PD2, PD3, PD4, PD5, PD6, PD7, PB0 pin of singlechip chip U respectively, and each series arm LED positive pole one end is all connected to working power positive terminal E; Upper starting of oscillation electric capacity C
p1one end and lower starting of oscillation electric capacity C
p2one end connect and ground connection; Upper starting of oscillation electric capacity C
p1the other end and lower starting of oscillation electric capacity C
p2the other end respectively with crystal oscillator C
ftwo ends connect, this two tie point is connected with XTAL1 and the XTAL2 pin of singlechip chip U respectively.The VCC pin of singlechip chip U is connected to working power positive terminal E.
The mode control switch contact K of Schema control feature operation button 3
m, control function of power operation push-button 4 power control switching contact K
p, frequency 1 controlling functions operation sliding pressure key 2.3 frequency 1 keep off sliding pressure make and break contact K
f1, frequency 2 controlling functions operation sliding pressure key 2.4 frequency 2 keep off sliding pressure make and break contact K
f2sliding pressure make and break contact K is kept off with the frequency 3 of frequency 3 controlling functions operation sliding pressure key 2.5
f3all there are both sides break terminals.Mode control switch contact K
ma side terminal, power control switching contact K
pa side terminal, frequency 1 keep off sliding pressure make and break contact K
f1a side terminal, frequency 2 keep off sliding pressure make and break contact K
f2a side terminal and frequency 3 keep off sliding pressure make and break contact K
f3a side terminal be connected respectively to the PC0 pin of singlechip chip U, PC1 pin, PC2 pin, PC3 pin and PC4 pin; Mode control switch contact K
mopposite side terminals, power control switching contact K
popposite side terminals, frequency 1 keep off sliding pressure make and break contact K
f1opposite side terminals, frequency 2 keep off sliding pressure make and break contact K
f2opposite side terminals and frequency 3 keep off sliding pressure make and break contact K
f3the equal ground connection of opposite side terminals.
Large resonant inductance L
o1, middle resonant inductance L
o2with little resonant inductance L
o3for series inductance one group.Large resonant inductance L
o1one end be connected to drive singal coupling output O
d, the other end and middle resonant inductance L
o2one end connect, this tie point tap is also connected to the outer contact terminal F that rubs
1; Middle resonant inductance L
o2the other end and little resonant inductance L
o3one end connect, this tie point tap the contact terminal F that rubs in being connected to
2; Little resonant inductance L
o3the other end be connected in rub contact terminal F
3.
Chop control and gate diode D
pnegative pole be connected with the PB5 pin of singlechip chip U, tapping mode and gate diode D
mnegative positive pole be connected with the PB4 pin of singlechip chip U; Chop control and gate diode D
ppositive pole and tapping mode and gate diode D
mpositive pole connect.Chopper driving base electrode bias resistance R
ebone end be connected to working power positive terminal E, the other end and Chopper driving triode T
ebase stage connect, this tie point and chop control and gate diode D
ppositive pole and tapping mode and gate diode D
mpositive pole connect simultaneously.Chopping switch MOSFET element grid bias resistance R
fgone end be connected to working power positive terminal E, the other end and chopping switch MOSFET element Q
egrid connect, this tie point and Chopper driving collector load resistor R
econe end connect; Chopper driving collector load resistor R
ecthe other end and Chopper driving triode T
ecolelctor electrode connect; Chopper driving triode T
egrounded emitter.Chopping switch MOSFET element Q
esource electrode be connected to working power positive terminal E; Chopping switch MOSFET element Q
edrain electrode and voltage stabilizing sustained diode
enegative pole connect; Voltage stabilizing sustained diode
eplus earth.Flat ripple inductance L
eone end and chopping switch MOSFET element Q
edrain electrode connect, flat ripple inductance L
ethe other end and flat wave capacitor C
epositive pole connect; Flat wave capacitor C
eminus earth.
Upper coupling resistance R
1Fone end be connected with the PB3 pin of singlechip chip U, the other end and upper switching MOSFET device Q
1Fgrid connect.Lower coupling resistance R
2Fone end be connected with the PB2 pin of singlechip chip U, the other end and lower switching MOSFET device Q
2Fgrid connect.Upper switching MOSFET device Q
1Fsource electrode with flat wave capacitor C
epositive pole connect; Upper switching MOSFET device Q
1Fdrain electrode and lower switching MOSFET device Q
2Fdrain electrode connect, this tie point is as drive singal coupling output O
d; Lower switching MOSFET device Q
2Fsource ground.
Reset charging resistor R
r1one end be connected to working power positive terminal E, the other end and reset discharge resistance R
r2one end connect; Reset charging resistor R
r1with reset discharge resistance R
r2tie point and singlechip chip U
pin connects; Reset discharge resistance R
r2the other end and reset operation single-button K
rone terminals connect; Reset operation single-button K
ranother terminals ground connection.Reset buffer capacitor C
rbe connected across singlechip chip U's
between pin and GND pin; The GND pin ground connection of singlechip chip U.
In the miniature ultrasonic oscillator structure view shown in Fig. 5 ~ 11: based shell 1.11 side postmedian is shaped with installs external screw thread 1.1; Installing external screw thread 1.1 is the normal structure of surface through the anti-skidding process of retaining.Based shell 1.11 rear end face is divided into center, inner ring, secondary inner ring, middle ring, secondary outer shroud and outer shroud from inside to outside.At based shell 1.8 rear end face center, rub tactile disk 1.2 at tight Tie Qian center.The center tactile disk 1.2 that rubs is be made up of phosphor-copper material, through the convex stupefied contact of disc of surperficial antifriction process.Piezoelectricity conversion diaphragm 1.7 to go between two diaphragms lead-in wire 1.6 in duct by passing through based shell 1.11.
In miniature ultrasonic frequency 1 oscillator structure sectional view (locally) shown in the assembling end structure view of miniature ultrasonic frequency 1 oscillator shown in Fig. 5 and Fig. 6: at based shell 1.11 rear end face outer shroud, closely paste the stupefied tactile ring 1.3 that rubs of embedding outer sliding pressure.The stupefied tactile ring 1.3 that rubs of outer sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward.Piezoelectricity conversion diaphragm 1.7 to go between two diaphragms lead-in wire 1.6 in duct by passing through based shell 1.11, and rub tactile disk 1.2 and the stupefied tactile ring 1.3 that rubs of outer sliding pressure at the center of being connected respectively to.
In miniature ultrasonic frequency 2 oscillator structure sectional view (locally) shown in the assembling end structure view of miniature ultrasonic frequency 2 oscillator shown in Fig. 7 and Fig. 8: at based shell 1.11 rear end face time outer shroud, closely paste the stupefied tactile ring 1.4 that rubs of embedding middle sliding pressure.The stupefied tactile ring 1.4 that rubs of middle sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward.Piezoelectricity conversion diaphragm 1.7 to go between two diaphragms lead-in wire 1.6 in duct by passing through based shell 1.11, and rub tactile disk 1.2 and the stupefied tactile ring 1.4 that rubs of middle sliding pressure at the center of being connected respectively to.
In miniature ultrasonic frequency 3 oscillator structure sectional view (locally) shown in the assembling end structure view of miniature ultrasonic frequency 3 oscillator shown in Fig. 9 and Figure 10: in based shell 1.11 rear end face time inner ring, closely paste the stupefied tactile ring 1.5 that rubs of embedding interior sliding pressure.The stupefied tactile ring 1.5 that rubs of interior sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward.Piezoelectricity conversion diaphragm 1.7 to go between two diaphragms lead-in wire 1.6 in duct by passing through based shell 1.11, and rub tactile disk 1.2 and the stupefied tactile ring 1.5 that rubs of interior sliding pressure at the center of being connected respectively to.
Claims (7)
1. a high energy efficiency power-economizing method for miniature ultrasonic wave producer, is characterized in that:
In the left side of casing operating board structure, have oblate post box-like concave oscillator installation opening; The cylinder side wall of installation opening is shaped with installation internal thread, and installing internal thread is the normal structure of surface through the anti-skidding process of retaining; The bottom surface of installation opening is divided into center, inner ring, middle ring and outer shroud from inside to outside; Bottom center's assembly of installation opening has center to rub contact terminal, and the bottom surface outer shroud assembly of installation opening has the outer contact terminal F that rubs
1, in the bottom surface of installation opening, ring assembly rubs in having contact terminal F
2, rub in the bottom surface inner ring assembly of installation opening has contact terminal F
3; Rub contact terminal and the contact terminal F that rubs outward at center
1, in rub contact terminal F
2, in rub contact terminal F
3be the spherical crown cyclic spring contact that the phosphor-copper material through surperficial antifriction process is made, contact surface forward; At the bottom surface outer shroud of installation opening, near installation internal thread, frequency 1 controlling functions operation sliding pressure key is installed; Ring in the bottom surface of installation opening, is provided with frequency 2 controlling functions operation sliding pressure key; In the bottom surface inner ring of installation opening, frequency 3 controlling functions operation sliding pressure key is installed; Frequency 1 controlling functions operation sliding pressure key, frequency 2 controlling functions operation sliding pressure key and frequency 3 controlling functions operation sliding pressure key are miniature fine motion wiping switch bounce sliding pressure key;
Under the frequency F, the pattern M that arrange in start and power P combination control signal, the ultrasonic wave drive singal of given frequency, intermittent time and power is occurred by system, and from the most advanced and sophisticated output ultrasonic wave of working end-oscillator structure;
Under frequency 1 works selection, there is frequency 1 and keep off oscillator impedance Z
1working end-oscillator structure come into operation, namely frequency 1 keeps off oscillator impedance Z
1a side terminal be connected to the outer contact terminal F that rubs
1, opposite side terminals ground connection; Under frequency 2 works selection, there is frequency 2 and keep off oscillator impedance Z
2working end-oscillator structure come into operation, namely frequency 2 keeps off oscillator impedance Z
2a side terminal be connected in rub contact terminal F
2, opposite side terminals ground connection; Under frequency 3 works selection, there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure come into operation, namely frequency 3 keeps off oscillator impedance Z
3a side terminal be connected in rub contact terminal F
3, opposite side terminals ground connection;
Frequency F for start is arranged: if select frequency 1, then there is frequency 1 and keep off oscillator impedance Z
1working end-oscillator structure come into operation, make frequency 1 controlling functions operate sliding pressure key and be depressed, namely frequency 1 keeps off sliding pressure make and break contact K
f1connect, thus 50kHz ultrasonic signal occurs, frequency 1 keeps off oscillator impedance Z simultaneously
1by the interior contact terminal F that rubs
1access ultrasonic wave drive singal coupling output loop; If select frequency 2, then there is frequency 2 and keep off oscillator impedance Z
2working end-oscillator structure come into operation, make frequency 2 controlling functions operate sliding pressure key and be depressed, namely frequency 2 keeps off sliding pressure make and break contact K
f2connect, thus 75kHz ultrasonic signal occurs, frequency 2 keeps off oscillator impedance Z simultaneously
2by the interior contact terminal F that rubs
2access ultrasonic wave drive singal coupling output loop; If select frequency 3, then there is frequency 3 and keep off oscillator impedance Z
3working end-oscillator structure come into operation, make frequency 3 controlling functions operate sliding pressure key and be depressed, namely frequency 3 keeps off sliding pressure make and break contact K
f3connect, thus 100kHz ultrasonic signal occurs, frequency 3 keeps off oscillator impedance Z simultaneously
3by the interior contact terminal F that rubs
3access ultrasonic wave drive singal coupling output loop;
The pattern M arranged for start selects: if pressed 1 Schema control feature operation button, i.e. mode control switch contact K in 1 second
mconnect 1 time, then long pause control signal occurs, and makes ultrasonic wave drive singal cyclical intermission 1 second; If pressed 2 Schema control feature operation buttons, i.e. mode control switch contact K in 1 second
mconnect 2 times, then short tapping mode signal occurs, and makes ultrasonic wave drive singal cyclical intermission 0.5 second; If pressed 3 Schema control feature operation buttons, i.e. mode control switch contact K in 1 second
mconnect 3 times, then Non-intermittent control signal occurs, and makes ultrasonic wave drive singal Non-intermittent;
The power P arranged for start is selected: if pressed 1 control function of power operation push-button in 1 second, i.e. power control switching contact K
pconnect 1 time, then weak power control signal occurs, and makes ultrasonic wave drive singal mate 0.1W power stage; If pressed 2 control function of power operation push-buttons in 1 second, i.e. power control switching contact K
pconnect 2 times, then in, power control signal occurs, and makes ultrasonic wave drive singal mate 0.2W power stage; If pressed 3 control function of power operation push-buttons in 1 second, i.e. power control switching contact K
pconnect 3 times, then high power control signal occurs, and makes ultrasonic wave drive singal mate 0.3W power stage.
2. the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1, is characterized in that: the working end-oscillator structure of miniature ultrasonic wave producer is assemblied in the left end of casing operating board structure; In the front of casing operating board structure, assemble film-type Schema control feature operation button, film-type control function of power operation push-button and power switch from left to right successively and dial handle; Dial handle top at the power switch of casing operating board structure front right-hand member, be furnished with power supply instruction look face; The control function of power operation push-button top of right-hand member in casing operating board structure front, is furnished with power gear level indicator lamp; The Schema control feature operation button top of left end in casing operating board structure front, is furnished with pattern gear level indicator lamp; Control function of power operation push-button in casing operating board structure front and power thereof keep off level indicator lamp and Schema control feature operation button and pattern thereof and keep off between level indicator lamp, are furnished with FREQUENCY CONTROL function and indicate and frequency gear level indicator lamp.
3. according to the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1 or claim 2, it is characterized in that: working end-oscillator structure is that many curves connect rotation body structure; Wherein transducer-ultrasonic transformer structure is the hyperbola rotary body be made up of titanium alloy material, and its tip is ul-trasonic irradiation point, and tailstock end is ultrasonic wave generating plane; It is diaphragm shape piezoelectric transducer part with piezoceramic material into core that piezoelectricity changes diaphragm, and two diaphragms lead-in wires are its electric energy input lead; Based shell is the circular cylindrical shell body be made up of heat cured insulation material; Transducer-base construction is the cylinder made through the stainless steel material of die casting process, and each surface is through cure process, and rearward end makes ellipsoid; Sheath is the cover film body be made up of flexible elastic material; Transducer-ultrasonic transformer structure coordinates with the coaxial front and back of transducer-base construction, and in the middle part of two parts interlayers, two-sided tight rigidity pastes piezoelectricity conversion diaphragm, seals with non-rigid adhesive outward; The interior nest wall postmedian of based shell and the side of transducer-base construction, below rigidity are pasted, the non-rigid stickup of side back segment of interior nest wall front portion and transducer-ultrasonic transformer structure; Transducer-ultrasonic transformer structure overcoat sheath, the rear end of sheath and the front end face of based shell bond.
4., according to the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1 or claim 2, it is characterized in that:
The based shell side postmedian of transducer-ultrasonic transformer structure is shaped with installation external screw thread; Installing external screw thread is the normal structure of surface through the anti-skidding process of retaining; Based shell rear end face is divided into center, inner ring, secondary inner ring, middle ring, secondary outer shroud and outer shroud from inside to outside; At based shell rear end face center, rub tactile disk at tight Tie Qian center; The center tactile disk that rubs is be made up of phosphor-copper material, through the convex stupefied contact of disc of surperficial antifriction process; Piezoelectricity conversion diaphragm is by passing through two diaphragm lead-in wires in based shell lead-in wire duct;
At based shell rear end face outer shroud, closely paste the stupefied tactile ring that rubs of embedding outer sliding pressure; The stupefied tactile ring that rubs of outer sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward; Piezoelectricity conversion diaphragm is by passing through two diaphragm lead-in wires in based shell lead-in wire duct, and rub tactile disk and the stupefied tactile ring that rubs of outer sliding pressure at the center of being connected respectively to;
At based shell rear end face time outer shroud, closely paste the stupefied tactile ring that rubs of embedding middle sliding pressure; The stupefied tactile ring that rubs of middle sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward; Piezoelectricity conversion diaphragm is by passing through two diaphragm lead-in wires in based shell lead-in wire duct, and rub tactile disk and the stupefied tactile ring that rubs of middle sliding pressure at the center of being connected respectively to;
In based shell rear end face time inner ring, closely paste the stupefied tactile ring that rubs of embedding interior sliding pressure; The stupefied tactile ring that rubs of interior sliding pressure is made up of the phosphor-copper material through surperficial antifriction process, and be the convex stupefied contact of annular, sliding pressure contact surface backward; Piezoelectricity conversion diaphragm is by passing through two diaphragm lead-in wires in based shell lead-in wire duct, and rub tactile disk and the stupefied tactile ring that rubs of interior sliding pressure at the center of being connected respectively to.
5., according to the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1 or claim 2, it is characterized in that:
The installation external screw thread of transducer-ultrasonic transformer structure with internal thread is installed forms and be slidably matched; Center tactile disk and the center contact terminal that rubs that rubs forms electrical contact and is slidably matched;
Stupefied tactile ring and the contact terminal F that rubs outward of rubbing of outer sliding pressure
1form with frequency 1 controlling functions operation sliding pressure key and be slidably matched, and with the contact terminal F that rubs outward
1electrical contact;
Middle sliding pressure is stupefied rub tactile ring with in rub contact terminal F
2form with frequency 2 controlling functions operation sliding pressure key and be slidably matched, its with in rub contact terminal F
2electrical contact;
Stupefied tactile ring and the interior contact terminal F that rubs of rubbing of interior sliding pressure
3form with frequency 3 controlling functions operation sliding pressure key and be slidably matched, and with the interior contact terminal F that rubs
3electrical contact.
6. the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1, is characterized in that: the power gear level indicator lamp of miniature ultrasonic wave producer comprises pattern long pause gear level LED light D
m1, pattern short interval gear level LED light D
m2with pattern Non-intermittent gear level LED light D
m3, frequency gear level indicator lamp comprises frequency 1 and keeps off level LED light D
f1, frequency 2 keeps off level LED light D
f2, frequency 3 keeps off level LED light D
f3, pattern gear level indicator lamp comprises power weak gear level LED light D
p1, keep off level LED light D in power
p2a grade LED light D is kept off by force with power
p3.
7. the high energy efficiency power-economizing method of miniature ultrasonic wave producer according to claim 1, is characterized in that:
The efficient main circuit of miniature ultrasonic wave producer adopts Atmega8 type singlechip chip U as core devices, with peripheral circuit construction system hardware, realizes main functional modules H by the corresponding program of systems soft ware
oSwith mode control operation functional module M
oP, frequency control operation functional module F
oP, power control operation functional module P
oPsystemic-function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181437.0A CN103447221B (en) | 2012-06-05 | 2012-06-05 | Efficient energy-saving method for micro ultrasonic generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210181437.0A CN103447221B (en) | 2012-06-05 | 2012-06-05 | Efficient energy-saving method for micro ultrasonic generator |
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| Publication Number | Publication Date |
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| CN103447221B true CN103447221B (en) | 2015-05-27 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2250876A (en) * | 1990-10-09 | 1992-06-17 | Brother Ind Ltd | Driver circuit for piezoelectric element, having voltage limiter capable of charging the element with energy from coil after charging switch is off |
| CN1095583A (en) * | 1993-05-27 | 1994-11-30 | 薛云起 | Rechargable miniature ultrasonic face-care apparatus |
| CN201231236Y (en) * | 2008-07-25 | 2009-05-06 | 李继忠 | Supersonic cleaning device |
| DE102011003406A1 (en) * | 2010-02-12 | 2011-08-18 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Active vibration absorber |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8199938B2 (en) * | 2008-04-28 | 2012-06-12 | Beijing Funate Innovation Technology Co., Ltd. | Method of causing the thermoacoustic effect |
-
2012
- 2012-06-05 CN CN201210181437.0A patent/CN103447221B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2250876A (en) * | 1990-10-09 | 1992-06-17 | Brother Ind Ltd | Driver circuit for piezoelectric element, having voltage limiter capable of charging the element with energy from coil after charging switch is off |
| CN1095583A (en) * | 1993-05-27 | 1994-11-30 | 薛云起 | Rechargable miniature ultrasonic face-care apparatus |
| CN201231236Y (en) * | 2008-07-25 | 2009-05-06 | 李继忠 | Supersonic cleaning device |
| DE102011003406A1 (en) * | 2010-02-12 | 2011-08-18 | Bayerische Motoren Werke Aktiengesellschaft, 80809 | Active vibration absorber |
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