CN2279221Y

CN2279221Y - Ultrasound micro-atomizer

Info

Publication number: CN2279221Y
Application number: CN 96236954
Authority: CN
Inventors: 邓伟滔; 胡德明
Original assignee: Nanhai Chaoneng Electric Factory
Current assignee: Dixin Electronic Co., Ltd., Nanhai District, Foshan
Priority date: 1996-05-22
Filing date: 1996-05-22
Publication date: 1998-04-22
Anticipated expiration: 2006-05-22

Abstract

The utility model relates to an ultrasound micro-atomizer, which is mainly connected by a housing, a power tube, a circuit board, a bottom cover, a transducing plate, an indicating lamp and a level switch probe. The connected relation is that the transducing plate, the indicating lamp and the probe are fixed on the housing, a rubber ring is arranged between the transducing plate and the housing, and a pressure ring is tightly pressed out of the rubber ring. The pressure ring is matched with the housing via screws, the power tube is fixed on the inner wall of the housing, the circuit board is arranged in the housing, epoxy resin can seal after connecting the lines, and the bottom cover can be covered. The circuit comprises a rectifying filtering voltage regulating circuit, an ultrasonic wave vibration circuit and an induction electronic switch control circuit. The utility model overcomes the disadvantages of the existing ultrasonic wave atomizers and has the advantages of small size, high working sensitivity, high reliability and long service life.

Description

The miniature ultrasonic atomizer

The utility model is a kind of miniature ultrasonic atomizer, belongs to the electronic ultrasonic technical field, particularly ultrasonic atomizing device.

The supersonic generator electronic circuit board of existing ultrasonic atomizer and transducing sheet (device) all are independent packing, and they connect by the lead that is welded on the transducing sheet, and liquid-level switch portion adopts electrode to touch the ability of swimming liquid-level switch.Therefore, there is following shortcoming in existing atomizer: 1. volume is bigger, inconvenience dismounting when using use; 2. the circuit board of existing atomizer and the independent one package structual of transducing sheet make its electromagnetic viscosimeter radiation leakage bigger, and this has not only increased the power consumption of atomizer, and Electromagnetic Interference is quite serious; 3. this binding inconvenience disassembling, assembling and replacing with welding manner; 4. owing to when adopting electrode to touch the work of ability of swimming liquid-level switch, the transducing sector-meeting is produced galvano-cautery, will cause the transducing sheet lost of life, and electrode is when being immersed in liquid for a long time, electrode contact can deposit dirt, causes influencing the sensitivity and the functional reliability of switch.

The purpose of this utility model be exactly have in order to overcome existing ultrasonic atomizer that bigger, the inconvenient dismounting of above-mentioned volume, power consumption are big, serious interference, shortcoming and defect such as the life-span is short, working sensitivity is low, poor reliability, research and design is a kind of to overcome that above-mentioned shortcoming and defect, volume that existing ultrasonic atomizer exists lessly, convenient use, the band liquid-level switch that interferences is little, the life-span is long, working sensitivity is high, reliability is high and the miniature ultrasonic atomizer that encapsulates entirely with metal shell.

The utility model is realized by following structure technology scheme: the structural representation of this miniature ultrasonic atomizer as shown in Figure 1, it is mainly by shell 2, power tube 3, wiring board 4, bottom 5, copper clad plate 7, transducing sheet 9, indicator lamp 11, liquid-level switch probe 14 connects and composes jointly, wherein liquid-level switch adopts the induction type contactless liquid level switch of non-direct contact liq, wiring board 4, transducing sheet 9, indicator lamp 11, liquid-level switch probe 14 all is assembled into an integral body, its interconnected relationship is: offer a plurality of apertures on shell 2 and the bottom 5, power line 1, indicator lamp 11, liquid-level switch probe 14 is directly installed on the metal shell 2, pad is gone up rubber washer 8 between transducing sheet 9 and the shell 2, pad is gone up metal washer 10 above the transducing sheet 9, the outside compresses with pressure ring 12 again, pressure ring 12 and shell 2 are connected by threaded engagement, two apertures are arranged on the pressure ring 12, pressure ring screws or screws out by aperture is stressed, push down metal spring 13 below the transducing sheet 9, the spring other end is welded on the copper clad plate 7, copper clad plate 7 is fixed in the shell inner roof wall, be connected on the wiring board 4 with lead 6 again, wiring board 4 usefulness bottoms 5 are packaged in the inner chamber of metal shell 2, power tube 3 directly is anchored on outer casing inner wall, whole casing as radiator, whole inner chamber covers bottom again with the epoxy resin embedding.Its action principle is as follows: adopt said structure and annexation can overcome the various shortcomings of existing ultrasonic atomizer.The both salable waterproof of rubber blanket Fig. 8 can allow the upper and lower to a greater extent vibration of transducing sheet 9, metal washer 10 can prevent that pressure ring 12 from damaging the transducing sheet when rotation is installed again.Metal washer 10, pressure ring 12, shell 2 have constituted transducing sheet current loop one utmost point, and spring 13, copper clad plate 7, lead 6 constitute another utmost point of transducing sheet current loop, and this mounting means dismounting of transducing sheet is very convenient.Power tube 3 directly is fastened at shell 2 inwalls, utilizes shell as radiator, and during owing to atomizer work, shell 2 contacts with liquid, so good heat dissipation effect.Because the liquid-level switch probe is the induction type liquid level switch of contactless non-direct contact liq, appearance with the anti-saturating wrapped with insulation of liquid of waterproof, in 14 whens work of can avoiding like this popping one's head in, produce galvano-cautery to transducing sheet 9, and the long period of soaking of can avoiding popping one's head in oxidation, corrosion or deposition dirt takes place in liquid and influences the sensitivity and the reliability of switch.Indicator lamp 11 is subjected to circuit control can show two-stage brightness, first order brightness display power supply is connected, second level brightness shows the starting of oscillation of supersonic generator circuit, its circuit block diagram as shown in Figure 2, its circuit is by rectification filtering voltage stabilizing circuit, the sonic oscillation circuit, the induction electronic switch control circuit is electrically connected formation jointly, its interconnected relationship is: rectification filtering voltage stabilizing circuit is respectively by power of alterating and direct current line and transformer, the sonic oscillation circuit, the induction electronic switch control circuit is electrically connected mutually, the sonic oscillation circuit is respectively by sonic oscillation output line and ultrasonic transduction sheet, indicator lamp is electrically connected mutually, and the induction electronic switch control circuit is electrically connected with inductive probe and sonic oscillation circuit mutually by the induced signal output line and the induction electronics switch controlling signal output line of inductive probe respectively.Its simple operation principle is as follows: transformer output low-voltage AC, DC voltage is stablized in output behind rectification filtering voltage stabilizing circuit, supply with each circuit of the utility model and reach the parts that each needs dc source, inductive probe and liquid are formed equivalent capacity, equivalent capacity changes with the lifting of water level, its variation converts switched electrical signal to through the induction electronic switch control circuit and is delivered to the sonic oscillation circuit, control sonic oscillation circuit starting of oscillation or failure of oscillation.The oscillating circuit failure of oscillation, indicator lamp glimmers, and the oscillating circuit starting of oscillation is sent than light.The starting of oscillation of sonic oscillation circuit, the output sonic oscillation signal of telecommunication is to the transducing sheet, and the transducing sheet converts the signal of telecommunication to ultrasonic wave.The circuit theory diagrams of one of the utility model embodiment as shown in Figure 3, wherein: the bridge rectifier filter regulator circuit is by commutation diode D1～D4, Zener diode D5, capacitor C 8～C9, resistance R 19 mutually and electric the connecting and composing of connecting; The induction electronic switch control circuit is by equivalent capacity CX, integrated package U1～U4, transistor Q1, resistance R 15, capacitor C 1～C2 and electric the connecting and composing of connecting of liquid-level switch probe, the composition electronic switch and transistor 01 wherein, resistance R 15, light emitting diode D6 are connected in series, D6 also is a relay indicating light; Sonic oscillation circuit (capacitance three-point type) is by transistor Q2, coil L1～L3, capacitor C 3～C7, resistance R 16～R18 phase and electric the connecting and composing of connecting.

The utility model compared with prior art has following advantage and beneficial effect: 1. because the utility model is installed transducing sheet, wiring board, liquid-level switch, indicator lamp etc. in aggregates, and encapsulate with full metal jacket, in the outer shell cavity also with the epoxy resin embedding, both salable waterproof, can prevent mechanical failure again, and compact conformation, volume is small and exquisite; 2. because therefore the metal shell encapsulation can greatly reduce Electromagnetic Interference with ELECTROMAGNETIC RADIATION SHIELDING; 3. because this atomizer band induction type liquid level switch has guaranteed that the transducing sheet is operated in suitable liquid depth; 4. this atomizer installation and maintenance, easy to use, life-span are long, working sensitivity and reliability height, cost reduce, applicability is wide.

Below Figure of description is further specified as follows, Fig. 1 is the structural representation of this miniature ultrasonic atomizer, and Fig. 1 (a) is that the master looks cutaway view, (b) is vertical view, Fig. 2 is the circuit block diagram of this miniature ultrasonic atomizer, and Fig. 3 is the circuit theory diagrams of one of this miniature ultrasonic atomizer embodiment.Among each figure: 1 is that power line, 2 is that shell, 3 is that power tube, 4 is that wiring board, 5 is that bottom, 6 is that lead, 7 is that copper clad plate, 8 is that rubber blanket figure, 9 is that transducing sheet, 10 is that metal washer, 11 is that indicator lamp, 12 is that pressure ring, 13 is that metal spring, 14 is that liquid-level switch is popped one's head in.

Embodiment of the present utility model is as follows: 1. by this miniature ultrasonic of design atomizer shown in Figure 1, and design, each parts of processing and manufacturing.Machine-tooled method as using is also selected copper coin material processing shell 2, bottom 5, pad Figure 10, pressure ring 12 for use; Indicator lamp is chosen general light emitting diode; Liquid-level switch probe 14 is selected capacitance induction type liquid level switch probe for use, and all the other transducing sheets 9, rubber school packing ring 8, metal spring 13 etc. can be chosen general general equipment; 2. by draw PCB 4 shown in Figure 3, and screen components and parts and install, wherein D5 can select the optional LM324 type of Zener diode, the U1～U4 four high guaily unit integration member of 12V/0.5W for use, and Q2 can select the BU406 type for use, and, simply debug again by source line and other lead of Connecting Power shown in Figure 3; 3. by shown in Figure 1 and install by the annexation shown in the top specification.Wherein, adhesive cementations such as wiring board 4 available epoxies in the enclosure, same available adhesive cementations such as liquid-level switch probe 14, indicator lamp 11, power tube 3 can be fastened on shell 2 inwalls with screw, and the distance between transducing sheet 9 and the liquid-level switch probe 14 should be between 1.5～2.5cm; 4. wiring board and transducing sheet, indicator lamp, liquid-level switch probe etc. with lead by Fig. 1, shown in Figure 3 connecting after, fix and cover bottom 5 with the epoxy resin embedding, just finished enforcement of the present utility model.The inventor has implemented several products by above-mentioned embodiment, and effect is fine after testing, test, trying out, and has overcome the shortcoming and defect of existing ultrasonic atomizer fully.

Claims

1, a kind of miniature ultrasonic atomizer, it is characterized in that: it is mainly by shell (2), power tube (3), wiring board (4), bottom (5), copper clad plate (7), transducing sheet (9), indicator lamp (11), liquid-level switch probe (14) connects and composes jointly, wherein liquid-level switch adopts the induction type contactless liquid level switch of non-direct contact liq, wiring board (4), transducing sheet (9), indicator lamp (11), liquid-level switch probe (14) all is assembled into an integral body, its interconnected relationship is: offer a plurality of apertures on shell (2) and the bottom (5), power line (1), indicator lamp (11), liquid-level switch probe (14) is directly installed on the metal shell (2), pad is gone up picture rubber gasket (8) between transducing sheet (9) and the shell (2), pad is gone up metal washer (10) above the transducing sheet (9), the outside uses pressure ring (12) to compress again, pressure ring (12) is connected by threaded engagement with shell (2), pressure ring has two apertures on (12), pressure ring screws or screws out by aperture is stressed, push down metal spring (13) below the transducing sheet (9), the spring other end is welded on the copper clad plate (7), copper clad plate (7) is fixed in the shell inner roof wall, use lead (6) to be connected on the wiring board (4) again, wiring board (4) is packaged in the inner chamber of metal shell (2) with bottom (5), power tube (3) directly is anchored on outer casing inner wall, whole casing as radiator, whole inner chamber covers bottom again with the epoxy resin embedding.

2, by the described miniature ultrasonic atomizer of claim 1, it is characterized in that its described circuit is by rectification filtering voltage stabilizing circuit, the sonic oscillation circuit, the induction electronic switch control circuit is electrically connected formation jointly, its interconnected relationship is: rectification filtering voltage stabilizing circuit is respectively by power of alterating and direct current line and transformer, the sonic oscillation circuit, the induction electronic switch control circuit is electrically connected mutually, the sonic oscillation circuit is respectively by sonic oscillation output line and ultrasonic transduction sheet, indicator lamp is electrically connected mutually, and the induction electronic switch control circuit is electrically connected with inductive probe and sonic oscillation circuit mutually by the induced signal output line and the induction electronics switch controlling signal output line of inductive probe respectively.

3,, it is characterized in that described bridge rectifier filter regulator circuit is by commutation diode D1～D4, Zener diode D5, capacitor C 8～C9, resistance R 19 phase and electric the connecting and composing of connecting by claim 1 or 2 described a kind of miniature ultrasonic atomizers; The induction electronic switch control circuit is by equivalent capacity CX, integrated package U1～U4, transistor Q1, resistance R 15, capacitor C 1～C2 and electric the connecting and composing of connecting of liquid-level switch probe, the composition electronic switch and transistor Q1 wherein, resistance R 15, light emitting diode D6 are connected in series, D6 also is a relay indicating light; The sonic oscillation circuit is by transistor Q2, line chart L1～L3, capacitor C 3～C7, resistance R 16～R18 phase and electric the connecting and composing of connecting.