CN2149978Y

CN2149978Y - Controller for supersonic atomizer

Info

Publication number: CN2149978Y
Application number: CN 92221224
Authority: CN
Inventors: 吴建平
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-24
Filing date: 1992-08-24
Publication date: 1993-12-22
Anticipated expiration: 2002-08-24

Abstract

The utility model relates to a controller for a supersonic atomizer for liquid atomization, which comprises a power source, an oscillator and an energy converter, wherein, the oscillator and the energy converter are separated from each other and are not made into an intergrative structure, and protective devices are adopted by the oscillator and the energy converter. The power source is an alternating current power source with 220 volt and is changed into a direct current power source by voltage transformation and rectification. The oscillator is a capacitance three-point type oscillating circuit which is composed of two oscillating triodes connected in parallel, a capacitor, a resistor, inductance and a negative thermistor. The energy converter adopts improved piezoelectric ceramic pieces, so the service life is raised. The controller for a supersonic atomizer can be used as a medical atomizer, an oxygen generator for a fish bowl, an atomizer for an advanced miniature garden, etc.

Description

Controller for supersonic atomizer

The utility model relates to a kind of ultrasonic atomization controller that is used for the atomization of liquid, particularly a kind of electronic ultrasonic atomizing controller.

The liquid ultrasonic ultrasonic delay line memory is that the directed pressure of using ultrasound ripple sprays liquid and the formation atomizing.It can be used as the disease of medical respiratory system, as the automatic aerator of fish jar and senior potted landscape atomizer etc.Existing ultrasonic ultrasonic delay line memory has that the controller volume of the controller of electron tube and transistorized controller electron tube is big, power consumption is big, cost is high, and transistorized controller just seems comparatively advanced.Existing transistorized controller is made up of power supply, oscillator and transducer three parts, and its oscillator and transducer are made one, makes the easy contact liq of oscillator or its fog and weathers, and influences the life-span; Oscillator and transducer lack holding circuit, influence service life; Existing transducer adopts appearance to be coated with silver-colored, and silver layer easily comes off and influences service life.

The novel purpose of this use is in that a kind of improved liquid ultrasonic ultrasonic delay line memory controller is provided, to improve its service life.

For achieving the above object, the utility model adopts following technical proposals: the same power supply, oscillator and the transducer of comprising with prior art of this ultrasonic ultrasonic delay line memory controller.Be characterized in: oscillator and transducer are separated, do not make one, and oscillator and transducer are adopted 3 protectors.Like this, not contact liq or its fog and not corroded by it of oscillator; Adopted protector, prevented that the oscillator self-excitation from burning out, and increases the service life.

Power unit of the present utility model can be designed as: 220 volts of AC powers are passed through the elementary circle of transformer, and the bridge rectifier of forming through four commutation diodes is converted to dc source, and through a capacitor filtering.Oscillator can be formed electric capacity three formula oscillating circuits by an inductance coil, two air core inductors, amount generator triode, five electric capacity, three resistance and negative thermistors only in parallel.It is to connect a fuse in the dc source input of oscillator that transducer can adopt the piezoelectric ceramic piece protector, and an electric capacity is arranged in the input of transducer.

Above-mentioned piezoelectric ceramic piece can be designed as that coated one deck is coated with silver layer on the piezoelectric ceramics substrate, is stained with silver alloy film by adhesive-layer being coated with on the silver layer then, and the thickness of silver alloy film is 4～6 microns service lifes that can improve piezoelectric ceramic piece like this.

The utility model compared with prior art, have conspicuous advantage and effect: because oscillator separates with transducer, do not make one, when transducer places liquid so that liquid has sprayed when atomizing, oscillator is not corroded by it away from liquid and range of atomization thereof; Adopt protector, avoided its self-excitation to burn out; Improve for piezoelectric ceramic piece, make 3 times of its ILSs, in order to avoid too often change the electroceramics sheet as transducer.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a circuit block diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of an embodiment of the utility model.

Fig. 3 is the structural representation that adopts a kind of piezoelectric ceramic piece in the utility model.

Label representative in the accompanying drawing: 1---power supply, 2---oscillator, 3---transducer; 4---protector, 5---power switch, 6---transformer; 7---the transformer secondary output coil, 8---bridge rectifier, 9---fuse; 10---capacitor, 11---inductance coil, 12; 13---air core inductor; 14; 15---generator triode; 16; 17---electric capacity, 18---negative thermistor, 19---electric capacity; 20; 21; 22---resistance; 23; 24---electric capacity, 25---the voltage ceramic sheet, 26---selector switch; 27---silver alloy film; 28---adhesive-layer, 30---the piezoelectric ceramics substrate, 31---be coated with silver layer

An optimum implementation of the present utility model is: referring to Fig. 1; this ultrasonic ultrasonic delay line memory controller is made up of power supply 1, oscillator 2 and transducer 3; oscillator 2 and transducer 3 have adopted protection 4 referring to Fig. 2; power supply 1 is that 220 volts of AC powers are through power switch 5; transform to 7 one-tenth 65 volts of alternating currents of transformer secondary output coil by transformer 6; the bridge rectifier of forming through four commutation diodes 8 is converted to dc source again; the fuse that connects one 1.5 peace then; prevent line short, again through capacitor 19 filtering of one 0.47 microfarad.20,21,22 and negative thermistors 18 of 16,17,19,23,24 3 resistance of 14,15, five electric capacity of generator triode by an inductance coil 11,12,13, two parallel connections of an amount air core inductor are formed Colpitts oscillation circuit, and promptly oscillator 2.Transducer 3 is intrinsic frequencies that the frequency of oscillation of piezoelectric ceramic piece 25 oscillating circuits adopts 1.7 million piezoelectric ceramic pieces 25, piezoelectric ceramic piece 25 uses as inductance, it is the element of decision-making circuit frequency of oscillation, be again the load of oscillating circuit, the electronic voltage oscillator frequency of following of circuit is vibrated.Air core inductor 12,13 and electric capacity 17 mainly are to regulate frequency of oscillation; making the atomization of liquid reach optimum state negative thermistor 18 is that resistance reduces automatically with the rising of generator triode 14,15 temperature; regulate bias current value resistance 21,22 and the strong or weak circuit of selector switch 26 composition selections; control generator triode 14,15 fixed biases; be mainly transducer open circuit and design with the needs electric capacity 24 that adapts to different occasion liquid spray amount; can reduce because of the transducer open circuit causes the generator triode self-excitation, it is shielded.Two generator triodes 14,15 are two-tube parallel connection, overcome circuit self-excitation and heavy current impact, stable working state, durable when making its vibration.Referring to Fig. 3, piezoelectric ceramic piece 25 is to adopt to be coated with overcoating silver layer 29,31 to be coated with on the silver layer 29 then and to be stained with silver alloy film 27 by adhesive-layer 28 on 1.7 million piezoelectric ceramics substrates 30, the thickness of silver alloy film 27 is 4～6 microns can significantly reduce piezoelectric ceramic piece hyperacoustic damage when chemical agent reaction and vibration in liquid like this, make its life-span can improve 3～5 times to this improved piezoelectric ceramic piece 25 require any surface finish, be convinced, the caking ability height, should note to reduce in the resistance value use: can not leave liquid working behind the transducer electricity, otherwise can burn out.Can not produce atomizing to suds.

Claims

1, a kind of ultrasonic ultrasonic delay line memory controller that is used for the atomization of liquid comprises power supply 1, oscillator 2 and transducer 3, it is characterized in that oscillator 2 and transducer 3 separate, and have adopted protector 4 to oscillator 2 and transducer 3.

2, ultrasonic ultrasonic delay line memory controller according to claim 1, it is characterized in that power supply 1 is that 220 volts of AC powers transform to transformer secondary output coil 7 by transformer 6, the bridge rectifier of forming through four commutation diodes 8 is converted to dc source, and through capacitor 10 filtering; Oscillator 2 is formed Colpitts oscillation circuit by 20,21,22 and negative thermistors 18 of 16,17,19,23,24, three resistance of generator triode 14,15, a May 4th electric capacity of an inductance coil 11, two 12,13, two parallel connections of air core inductor; Transducer 3 is a piezoelectric ceramic piece 25; Protector 4 is to connect a fuse 5 in the dc source input of oscillator 2, and in the input of transducer 3 electric capacity 24 is arranged.

3, ultrasonic ultrasonic delay line memory controller according to claim 2, it is characterized in that piezoelectric ceramic piece 25 is a coated silver 29,31 on the piezoelectric ceramics substrate 30, be stained with silver alloy film 27 by adhesive-layer 28 being coated with on the silver layer 29 then, the thickness of silver alloy film 27 is 4～6 microns.