CN2286538Y - Sweep frequency type power supply used for ultrasonic wave cleaning machine - Google Patents
Sweep frequency type power supply used for ultrasonic wave cleaning machine Download PDFInfo
- Publication number
- CN2286538Y CN2286538Y CN 96205213 CN96205213U CN2286538Y CN 2286538 Y CN2286538 Y CN 2286538Y CN 96205213 CN96205213 CN 96205213 CN 96205213 U CN96205213 U CN 96205213U CN 2286538 Y CN2286538 Y CN 2286538Y
- Authority
- CN
- China
- Prior art keywords
- circuit
- power supply
- frequency
- cleaning machine
- power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
The utility model relates to a sweep frequency type power supply used for ultrasonic wave cleaning machines, which is composed of a main circuit and a control circuit. The main circuit is composed of a rectifier, a wave filter, a semi bridge type inverter circuit, a transformer and a resonating circuit, the control circuit can generate frequency sweep control signal with certain bandwidth so as to drive a power tube in the main circuit. The control circuit is composed of an integrated circuit, a power tube, a pulse transformer, an operational amplifier, a voltage comparator, etc. The circuit designed by the utility model can assure that the average launched power of each transducer of a cleaner is the same, the affection from physical parameter to ultrasonic emission power can be reduced, so the work pieces can be uniformly cleaned, and the operation is simplified.
Description
The utility model relates to a kind of supersonic wave cleaning machine sweep-frequency B power supply, belongs to the ultrasonic technology field.
Because ultrasonic waves for cleaning has physics concurrently and cleans and two kinds of effects of chemical cleaning, thereby is of wide application.But all there is same shortcoming in existing supersonic wave cleaning machine, and promptly or be fixed-frequency, perhaps frequency is by manually finely tuning.The supersonic wave cleaning machine of fixed-frequency, because some physical parameter, as temperature, clean the variation of load capacity etc., the drift that easily produces resonance frequency, thus cause the variation of ultrasonic power, like this or make the reduction of workpiece cleaning effect, perhaps power supply is caused damage.On the other hand, for high-power cleaning machine, ultrasonic transducer often is many in parallel uses, because the dispersiveness of every transducer resonance frequency, at the resonance effect of every transducer of a certain frequency with difference, this just causes the ultrasonic field in the whole rinse bath inhomogeneous, thereby makes the workpiece cleaning effect of different parts inhomogeneous.By the supersonic wave cleaning machine of manually finely tuning, at first is complicated operation for frequency, just can regulate after needing certain experience, and have many parallel connections of transducer equally and make ultrasonic field inhomogeneous, the uneven problem of cleaning performance.
The purpose of this utility model is a kind of supersonic wave cleaning machine of design sweep-frequency B power supply, the ultrasonic-frequency power supply that selection has certain bandwidth drives ultrasonic transducer, to guarantee the average transmit power basically identical of every transducer, reduce the influence of the variation of physical parameter to ultrasound emission power, make the cleaning performance unanimity of cleaning workpiece at last, and remove the action of artificial frequency modulation, simplify the operation.
The supersonic wave cleaning machine scan-type power supply of the utility model design is made up of main circuit and control circuit.Main circuit comprises rectifier D and the filter C that single-phase alternating current is compressed into capable rectifying and wave-filtering
11, by the half bridge inverter circuit of direct voltage generation high-frequency oscillation signal, by C
12, C
13, T
1, T
2Form, high-frequency oscillation signal is coupled to the transformer B of resonant circuit and the resonant circuit of being made up of resonator L and transducer C.Control circuit comprises: in order to produce the square wave control signal integrated circuit (IC) of two-way timesharing
1, produce a by this two paths of signals
0, a
1And b
0, b
1The control signal that two-way is isolated mutually, power tube T
22, T
23With pulse transformer B
21, B
22And by operational amplifier IC
2, voltage comparator ic
3, PNP transistor T
21And R
30The variable resistance circuit of forming.
Description of drawings:
Fig. 1 is the main circuit diagram of the sweep-frequency B power supply of the utility model design.
Fig. 2 is the control circuit figure of sweep-frequency B power supply.
Below in conjunction with accompanying drawing, introduce content of the present utility model in detail.
Fig. 1 is the main circuit part of sweep-frequency B power supply.Single-phase 220V alternating current is through rectifier D, filter C
11After obtain direct voltage, again via C
12, C
13And T
1, T
2Produce high-frequency oscillation signal behind the half bridge inverter circuit of forming, the frequency of oscillator signal depends on the resonance frequency of transducer, by a
0And b
0The alternately square wave control of point.a
0, b
0The square wave of point is produced by control circuit.This high-frequency oscillation signal makes the resonant circuit of being made up of resonator L and ultrasonic transducer C produce resonance, and produce sonic oscillation on transducer after transformer B coupling.
Fig. 2 is the control circuit of power supply, and circuit produces the frequency sweep control signal (a with certain bandwidth thus
0, a
1And b
0, b
1) in order to drive two power tube T in the main circuit
1And T
2Specific implementation is by integrated circuit (IC)
1(PWM pulse-width modulation type control device SG3525), it can produce the square wave control signal of two-way timesharing, by the output of 11 and 14 pin, and by T
22And T
23Two metal-oxide-semiconductors drive two pulse transformer B
21And B
22Produce a
0, a
1And b
0, b
1The control signal that two-way is isolated mutually.Transformer B
21And B
22Function realize isolating IC exactly
1Output signal frequency is by electric capacity and the resistance value decision over the ground of 6 pin over the ground of 5 pin.6 pin resistance over the ground is not a fixed resistance as seen from Figure 2, but a variable frequency sweep resistance, its resistance is by IC
2, IC
3, T
21And R
30The common decision of the variable resistance circuit of forming, IC wherein
2Be LM747 operational amplifier, IC
3Be LM339 voltage comparator, T
21Be PNP transistor, IC
2ABe an integrator, IC
3AAnd IC
3BBe two comparators.By IC
2AAnd IC
3AAt C
0Point produces a triangular wave, and (the triangle wave frequency is by R
22And C
21Decision, the wave amplitude of triangular wave is by two potentiometer RP
21And RP
22Decision).C
0The triangular wave of point is through voltage follower (IC
2B) output back adjusting T
21The base potential of (PNP transistor), thereby just scalable IC
16 pin resistance over the ground, and form two-way frequency sweep drive signal a
0, a
1And b
0, b
1
The cleaning machine sweep-frequency B power supply of the utility model design has been avoided the ultrasonic power that frequency drift caused to change and reached because the ultrasonic field that the resonance frequency dispersiveness of ultrasonic transducer causes is inhomogeneous, and the cleaning machine cleaning performance is improved, and is easy and simple to handle.
Claims (1)
1. supersonic wave cleaning machine scan-type power supply is characterized in that this power supply is made up of main circuit and control circuit; Described main circuit comprises rectifier D and the filter C that single-phase alternating current is compressed into capable rectifying and wave-filtering
11, by the half bridge inverter circuit of direct voltage generation high-frequency oscillation signal, by C
12, C
13, T
1, T
2Form, high-frequency oscillation signal is coupled to the transformer B of resonant circuit and the resonant circuit of being made up of resonator L and transducer C; Described control circuit comprises: in order to the integrated circuit (IC) of the square wave control signal that produces the two-way timesharing
1, produce a by this two paths of signals
0, a
1And b
0, b
1The control signal that two-way is isolated mutually, power tube T
22, T
23With pulse transformer B
21, B
22And by operational amplifier IC
2, voltage comparator ic
3, PNP transistor T
21And R
30The variable resistance circuit of forming.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205213 CN2286538Y (en) | 1996-03-07 | 1996-03-07 | Sweep frequency type power supply used for ultrasonic wave cleaning machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96205213 CN2286538Y (en) | 1996-03-07 | 1996-03-07 | Sweep frequency type power supply used for ultrasonic wave cleaning machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2286538Y true CN2286538Y (en) | 1998-07-22 |
Family
ID=33890263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96205213 Expired - Fee Related CN2286538Y (en) | 1996-03-07 | 1996-03-07 | Sweep frequency type power supply used for ultrasonic wave cleaning machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2286538Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091326C (en) * | 1998-08-13 | 2002-09-18 | 中国科学院声学研究所 | Acoustic surface wave reflecting electrode's width weighed filter with single-phase monodirection transducer |
| CN101170281B (en) * | 2006-10-27 | 2010-05-26 | 深圳职业技术学院 | Ultrasonic rod electric control system |
| CN104038078A (en) * | 2014-06-25 | 2014-09-10 | 中国科学院上海应用物理研究所 | Scanning power source for generating exciting currents similar to triangular waves |
| CN105391311A (en) * | 2015-07-10 | 2016-03-09 | 嘉兴百盛光电有限公司 | Circuit for achieving periodic frequency swiping on SG2525 power specialized chip |
| CN108816937A (en) * | 2018-08-17 | 2018-11-16 | 中南大学湘雅医院 | Cleaning machine ultrasonic control system |
| CN111478614A (en) * | 2020-04-20 | 2020-07-31 | 四川泛华航空仪表电器有限公司 | Low electromagnetic interference high reliable jet ignition power supply |
-
1996
- 1996-03-07 CN CN 96205213 patent/CN2286538Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1091326C (en) * | 1998-08-13 | 2002-09-18 | 中国科学院声学研究所 | Acoustic surface wave reflecting electrode's width weighed filter with single-phase monodirection transducer |
| CN101170281B (en) * | 2006-10-27 | 2010-05-26 | 深圳职业技术学院 | Ultrasonic rod electric control system |
| CN104038078A (en) * | 2014-06-25 | 2014-09-10 | 中国科学院上海应用物理研究所 | Scanning power source for generating exciting currents similar to triangular waves |
| CN105391311A (en) * | 2015-07-10 | 2016-03-09 | 嘉兴百盛光电有限公司 | Circuit for achieving periodic frequency swiping on SG2525 power specialized chip |
| CN108816937A (en) * | 2018-08-17 | 2018-11-16 | 中南大学湘雅医院 | Cleaning machine ultrasonic control system |
| CN108816937B (en) * | 2018-08-17 | 2024-03-26 | 中南大学湘雅医院 | Ultrasonic control system of cleaning machine |
| CN111478614A (en) * | 2020-04-20 | 2020-07-31 | 四川泛华航空仪表电器有限公司 | Low electromagnetic interference high reliable jet ignition power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |