CN200976705Y

CN200976705Y - Electric mosquito swatter control circuit

Info

Publication number: CN200976705Y
Application number: CN 200620116502
Authority: CN
Inventors: 王昕�; 陈江群
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-02-08
Filing date: 2006-05-16
Publication date: 2007-11-14
Anticipated expiration: 2016-05-16

Abstract

The utility model relates to a control circuit of manual catching or the instrument of killing the insect, especially a control circuit of electronic mosquito swatter, including power output device, oscillating circuit, boost circuit, rectifier circuit and high-voltage output circuit, boost circuit includes the transformer, and power output device passes through oscillating circuit and once side electricity of transformer and is connected, and the secondary side and the high-voltage output circuit electricity of transformer are connected, and its structural feature is: the oscillating circuit is a positive feedback oscillating circuit with double triodes conducted alternatively. Positive feedback oscillating circuit through the alternative conduction of double-triode makes the magnetic flux direction through the magnetic core of transformer change in turn to the utilization ratio of magnetic core just can improve one time, and the magnetic core is also difficult for saturating simultaneously, and boost circuit's electric energy conversion rate improves, and high-pressure output capacity reinforcing, the kill mosquito effect is showing, and the battery is power consumptive little, need not often to change the battery, and is more energy-concerving and environment-protective.

Description

The control circuit of electric mosquito flap

Technical field

The utility model relates to the control circuit of control circuit, particularly a kind of electric mosquito flap of the instrument of a kind of manual seizure or kill insects.

Technical background

The control circuit of electric mosquito flap of the prior art comprises power output apparatus, oscillating circuit, booster circuit, rectification circuit and high-voltage output circuit, oscillating circuit comprises single triode, booster circuit comprises high frequency transformer, power output apparatus is electrically connected with the primary side of high frequency transformer by oscillating circuit, the secondary side of high frequency transformer is electrically connected with high-voltage output circuit, because oscillating circuit adopts single triode, therefore, the magnetic flux of the high frequency magnetic core by transformer is a single direction, and the magnetic core utilance is low, and magnetic core causes saturation condition easily, make the energy conversion rate that boosts low, output high pressure belt load capacity is poor, and the battery power consumption is big, and effect exterminating mosquito is not remarkable.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of energy conversion rate height, and the high pressure fan-out capability is strong, the control circuit of the significant electric mosquito flap of effect exterminating mosquito.

The utility model is realized by following approach.

The control circuit of electric mosquito flap, comprise power output apparatus, oscillating circuit, booster circuit, rectification circuit and high-voltage output circuit, booster circuit comprises transformer, power output apparatus is electrically connected with the primary side of transformer by oscillating circuit, the secondary side of transformer is electrically connected with high-voltage output circuit, its structural feature is: oscillating circuit is a kind of positive feedback oscillating circuit of double-triode valve alternate conduction, this positive feedback oscillating circuit comprises two three plate pipe Q1, Q2 constitutes, transformer T1 is by winding L 1, L3 and magnetic core K form, the base stage of triode Q1 is connected with an end of winding L 1 by resistance R 2, the collector electrode of triode Q2 also is connected with this end of winding L 1, the base stage of triode Q2 is connected with the other end of winding L 1 by resistance R 3, the collector electrode of triode Q1 also is connected with this end of winding L 1, triode Q1, the emitter of Q2 all is connected with the negative pole or the positive pole of power output apparatus, and winding L 1 has centre cap, this centre cap is connected with the negative or positive electrode of power output apparatus, and the two ends of the winding L 3 of transformer T1 are connected with rectification circuit.

Like this, the winding L 1 of transformer T1 both had been a main winding, be the positive feedback winding again, L3 is the winding of usefulness of boosting, by triode Q1, Q2, transformer T1, resistance R 2, R3 constitutes two-tube vibration, and by the positive feedback oscillating circuit of double-triode valve alternate conduction, this oscillating circuit constitutes the positive feedback condition of persistent oscillation, make flow direction replace change by two triode alternate conduction by magnetic core of transformer, thereby the utilance of magnetic core just can double, and the while magnetic core also is not easy saturated, therefore, the energy conversion rate of booster circuit improves, the high pressure fan-out capability strengthens, and effect exterminating mosquito is remarkable, and the battery power consumption is little, need not often to change battery, more energy-conserving and environment-protective.

Structure of the present utility model can be specially:

Rectification circuit is made of capacitor C 1, C2, C3, C4 and diode D1, D2, D3, D4.

Like this, four voltage doubling rectifing circuits of voltage by being made up of capacitor C 1, C2, C3, C4 and diode D1, D2, D3, D4 from winding L 3 outputs further improve four times with voltage, and the voltage behind over commutation becomes direct current and exports from high-voltage output circuit.

The transformer of positive feedback oscillating circuit of the present utility model can also be by winding L 1, L2, and L3 and magnetic core K form, and are specially:

The positive feedback oscillating circuit is by two triode Q1, Q2 constitutes, transformer T1 is by winding L 1, L2, L3 and magnetic core K form, the base stage of triode Q1 is connected with an end of winding L 2 by resistance R 3, the collector electrode of triode Q1 is connected with an end of winding L 1, emitter is connected with the negative pole of power output apparatus, and the base stage of triode Q2 is connected with the other end of winding L 2 by resistance R 3, and collector electrode is connected with the other end of winding L 1, emitter is connected with the negative pole of power output apparatus, and winding L 1 and winding L 2 have centre cap respectively, and these two centre caps all are connected with the positive pole of power output apparatus, and the two ends of the winding L 3 of transformer T1 are connected with rectification circuit.

Like this, the winding L 1 of transformer T1 is a main winding, L2 is the winding that positive feedback is used, L3 is the winding of usefulness of boosting, constitute two-tube vibration by triode Q1, Q2, transformer T1, resistance R 2, R3, the sense of current through winding L 1 is alternately changed, the flow direction in magnetic core K also alternately changes, thereby the utilance of magnetic core just can double, and magnetic core also is not easy saturated simultaneously.The output of positive feedback winding L 2 is connected respectively to the base stage of triode Q2, Q1 by current-limiting resistance R2, R3, constitute the positive feedback condition of persistent oscillation, after energized, take turns conducting by triode Q1 and Q2, the sense of current on the Transformer Winding L1 is constantly changed, give winding L 3 with energy delivery, because the number of turn of winding L 3 is greater than the number of turn of winding L 1 by the magnetic coupling of magnetic core K, so produce very high alternating voltage at the L3 two ends, then by exporting after the rectification circuit rectification.

In sum, the utility model has following advantage compared to prior art: by the positive feedback oscillating circuit of double-triode valve alternate conduction, flow direction by magnetic core of transformer is alternately changed, thereby the utilance of magnetic core just can double, magnetic core also is not easy saturated simultaneously, the energy conversion rate of booster circuit improves, the high pressure fan-out capability strengthens, and effect exterminating mosquito is remarkable, and the battery power consumption is little, need not often to change battery, more energy-conserving and environment-protective.

Description of drawings

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

Fig. 2 is one of the utility model circuit diagram.

Fig. 3 is two of the utility model circuit diagram.

Wherein, 1 power output apparatus, 2 oscillating circuits, 3 booster circuits, 4 rectification circuits, 5 high-voltage output circuits.

Embodiment

Embodiment 1:

With reference to Fig. 1, the electric mosquito flap control circuit, comprise power output apparatus 1, oscillating circuit 2, booster circuit 3, rectification circuit 4 and high-voltage output circuit 5, booster circuit 3 comprises transformer, power output apparatus 1 is electrically connected with the primary side of transformer by oscillating circuit 2, the secondary side of transformer is electrically connected with high-voltage output circuit 5, and wherein, oscillating circuit 2 is a kind of positive feedback oscillating circuit of double-triode valve alternate conduction.

With reference to Fig. 2, the positive feedback oscillating circuit of double-triode valve alternate conduction is by two triode Q1, Q2 constitutes, transformer T1 is by winding L 1, L2, L3 and magnetic core K form, the base stage of triode Q1 is connected with an end of winding L 2 by resistance R 3, the collector electrode of triode Q1 is connected with an end of winding L 1, emitter is connected with the negative degree of power output apparatus, the base stage of triode Q2 is connected with the other end of winding L 2 by resistance R 3, collector electrode is connected with the other end of winding L 1, and emitter is connected with the negative pole of power output apparatus 1, and winding L 1 and winding L 2 have centre cap respectively, these two centre caps all are connected with the positive pole of power output apparatus 1, and the two ends of the winding L 3 of transformer T1 are connected with rectification circuit 4.Rectification circuit 4 is made of capacitor C 1, C2, C3, C4 and diode D1, D2, D3, D4.

Operation principle: the winding L 1 of transformer T1 is main winding (primary side), L2 is the winding that positive feedback is used, L3 is the winding (secondary side) of usefulness of boosting, by triode Q1, Q2, transformer T1, resistance R 2, R3 constitutes two-tube vibration, the output of positive feedback winding L 2 is by current-limiting resistance R2, R3 is connected respectively to triode Q2, the base stage of Q1, constitute the positive feedback condition of persistent oscillation, after energized, take turns conducting by triode Q1 and Q2, the sense of current on the Transformer Winding L1 is constantly changed, magnetic coupling by magnetic core K is given winding L 3 with energy delivery, because the number of turn of winding L 3 is greater than the number of turn of winding L 1, so produce very high alternating voltage at the L3 two ends, pass through by capacitor C 1 from the voltage of winding L 3 outputs, C2, C3, C4 and diode D1, D2, D3, the voltage doubling rectifing circuit that D4 forms further improves four times with voltage, and the voltage behind over commutation becomes direct current and exports from high-voltage output circuit.

Most preferred embodiment:

With reference to Fig. 3, the positive feedback oscillating circuit of double-triode valve alternate conduction is by two triode Q1, Q2 constitutes, transformer T1 is by winding L 1, L3 and magnetic core K form, the base stage of triode Q1 is connected with an end of winding L 1 by resistance R 2, the collector electrode of triode Q2 also is connected with this end of winding L 1, the base stage of triode Q2 is connected with the other end of winding L 1 by resistance R 3, the collector electrode of triode Q1 also is connected with this end of winding L 1, triode Q1, the emitter of Q2 all is connected with the negative pole of power output apparatus 1, and winding L 1 has centre cap, this centre cap is connected with the positive pole of power output apparatus 1, and the two ends of the winding L 3 of transformer T1 are connected with rectification circuit 4.Rectification circuit 4 is made of capacitor C 1, C2, C3, C4 and diode D1, D2, D3, D4.

Operation principle: the winding that the winding L 1 of transformer T1 had not only been used for main winding but also for positive feedback, L3 is the winding of usefulness of boosting, by triode Q1, Q2, transformer T1, resistance R 2, R3 constitutes two-tube vibration, the output of positive feedback winding L 1 is by current-limiting resistance R2, R3 is connected respectively to triode Q2, the base stage of Q1, constitute the positive feedback condition of persistent oscillation, after energized, take turns conducting by triode Q1 and Q2, the sense of current on the Transformer Winding L1 is constantly changed, magnetic coupling by magnetic core K is given winding L 3 with energy delivery, because the number of turn of winding L 3 is greater than the number of turn of winding L 1, so produce very high alternating voltage at the L3 two ends, pass through by capacitor C 1 from the voltage of winding L 3 outputs, C2, C3, C4 and diode D1, D2, D3, the voltage doubling rectifing circuit that D4 forms further improves four times with voltage, and the voltage behind over commutation becomes direct current and exports from high-voltage output circuit.

It is same as the prior art that the utility model is not stated part.

Claims

1. the control circuit of electric mosquito flap, comprise power output apparatus (1), oscillating circuit (2), booster circuit (3), rectification circuit (4) and high-voltage output circuit (5), booster circuit (3) comprises transformer T1, power output apparatus (1) is electrically connected with the primary side of transformer T1 by oscillating circuit (2), the secondary side of transformer T1 is electrically connected with high-voltage output circuit (5), it is characterized in that, oscillating circuit (2) is a kind of positive feedback oscillating circuit of double-triode valve alternate conduction, this positive feedback oscillating circuit comprises two three plate pipe Q1, Q2 constitutes, transformer T1 is by winding L 1, L3 and magnetic core K form, the base stage of triode Q1 is connected with an end of winding L 1 by resistance R 2, the collector electrode of triode Q2 also is connected with this end of winding L 1, the base stage of triode Q2 is connected with the other end of winding L 1 by resistance R 3, the collector electrode of triode Q1 also is connected with this end of winding L 1, triode Q1, the emitter of Q2 all is connected with the negative pole or the positive pole of power output apparatus, and winding L 1 has centre cap, and this centre cap is connected with the negative or positive electrode of power output apparatus, and the two ends of the winding L 3 of transformer T1 are connected with rectification circuit.

2. the control circuit of electric mosquito flap according to claim 1 is characterized in that, rectification circuit (3) is made of capacitor C 1, C2, C3, C4 and diode D1, D2, D3, D4.