SU1715271A1 - Electrical disinsector - Google Patents

Abstract

The invention relates to the field of hygiene and sanitation, in particular to handicrafts for attracting and destroying flying insects by electric current, mainly in domestic premises. The purpose of the invention is to improve the usability and reliability of the exterminator in operation. Insects attracted by light source 2 are affected by a spark discharge between conductors 6, 7, to which high voltage is applied. Infected insects enter collection 12, reducing the intensity of the reflected light flux received by receiver 11. When the threshold is reached, the threshold element turns on the indicator 20. 3 Cpf, k or. I SCIntroduction refers to hygiene and sanitation, in particular devices for attracting and destroying flying insects by electric current, mainly in domestic premises. The purpose of the invention is to improve the usability and reliability of the disinsector. In FIG. 1 shows a disinsector, front view; in fig. 2 - electric; block diagram of the exterminator; Fig. 3 shows a functional block diagram of the control of filling the disinsector collection; Fig. 4 shows timing diagrams: ^ a - supply network voltage V (^ Q • ^^^; k6 - output voltage of the pulse shaper and ^; ^ c - the output voltage of the frequency doubler Ug; ^ g is the output voltage of the amplifier 1) 3, proportional to the total flux incident on the input n ^ 'of the emulator.}' ^ d - the output voltage of the modulator U4; ^ e is the output voltage of the dc filter component Ug; i ^ x is the output voltage of the threshold element P ^. At the same time in Fig. '^ g voltage, - prop The normal constant illumination level is denoted by l ^ noc-f, the reference voltage of the threshold element in Fig. ^ e is denoted by Unqp > &, and the left half of the time diagrams in Fig. 4 is presented for the case when the electronic system is free from insects, rights - when insects are in the electronic system. The electric disinsector contains (figure 1) case 1 in which light source 2 is placed for prim-sl tc • vl

Description

insect insects installed behind the electrode system 3 (Fig. 2), consisting of electrodes, 5 in the form of alternating conductors 6, 7 (Fig. 1), with the voltage of different polarity being supplied to the conductors 6, 7 in pairs. The front panel 8 of the disinsector i contains a window 9 for providing insects access to the electrode system (electrodes t.S) covered by a protective grid 10. Radiation receiver 11 is placed on the light source 2, the latter being placed in the space between the sliding collection 12 and the light source 2. The collection 12, having the form of a box, is placed in the lower part 13 of the housing 1 under the guides, 1, 15 For rolling away the destroyed insects and has a bottom 1b, the surface 17 of which is made reflecting radiation and is concave in the direction from the source-2 light. In the upper part 18 of the housing there are electronic means, the knobs 19 of which are controlled and the indicator 20 (Fig. 1, 2) is displayed on the panel 21. The disinsector electronic means include (Fig. 2) a high voltage source (IVN) 22 connected to the bus 23 of the alternating mains voltage, control unit 2k, made in the form of serially connected parametric stabilizer 25, timer 2b and thyristor switch 27. Here, the parametric stabilizer (IC) 25 is connected to the bus 23, and the switch 27 of the thyristor with a high voltage source 22, to which the electrode system 3 is connected, consists of electrodes k 5 (Fig.1,2), made up of conductors 6 , 7. A light source 2 and a block 28 for monitoring the collection of collector 12 are connected to the bus 23, to which the receiver 11 of the radiation reflected by the surface 17 of the collector 12 is connected. The block 28 (FIG. 3) is designed as a series-connected current-voltage converter 29, amplifier 30 modulator 31, FPS 32, threshold element 33 associated with the indicator 20, as well as connected with the modulator 31 through the doubler 3 frequency of the pulse shaper 35, which is connected to the AC mains bus 23. 1 14 Electrodisinsector works as follows (figure 1). The light source 2 (fluorescent lamp) is turned on and using one of the knobs 19, the trigger level of the threshold element 33 (FIG. 3) is set on the indicator 20 by turning off the reflecting surface 17 of the bottom 1b of the collector 12 (FIG. 1.2) with an absorbing material (which corresponds to state of collection when it is completely filled with destroyed insects). Then the absorbing material is removed, while the indicator 20 (for example, a warning lamp) goes out (or pauses if the indicator 20 is audible) .. Then turn on the control unit 2 (Fig.2), which periodically (or continuously, if necessary) carried out There is a high voltage supply to the electrode system 3. The magnitude of the voltage is such that insects flying between conductors 6, 7 of electrodes C, 5 (as they strive for source 2 of light) are struck by a spark that occurs between conductors 6, 7 at the time of finding naseko in the space between them. The infected insects, either directly or with the help of guides Ik, 16, enter collection 12, cutting off part of the reflective surface 17 of its bottom 16. As the number of insects in collection 12 increases, the intensity of the radiation flux reflected from surface 17 becomes smaller and smaller, m. to. The dead insects themselves practically do not reflect radiation. As a result, the signal of the radiation receiver 11 becomes close to the value to which the threshold element 33 is tuned (Fig. 3), after which the indicator 20 begins to perform its assignment. Let us consider in more detail the processes that occur during operation of the collector 12 control unit 28 ( FIG. 3). As already noted, the receiver 11 receives a total flux of radiation from the source 2 of the light and the background screen, mainly due to daylight or artificial light. As practice shows, the flow created by lighting lamps. is a constant level and a variable component of the frequency, doubled with respect to k to the supply voltage. After conversion in the current-voltage converter 29 and the amplification in the amplifier 30, its output will have a voltage of 1) 3 (see fig.): Ultrasonic post + U.sin2at, where is the voltage rise corresponding to a constant level of illumination; and „- amplitude corresponding to the maximum value.

4nSinCOt, te

where n Oh, 1,2 ...

a constant filter 32 produces averaging of the modulator output voltage: about T (2

b || u (t) dt

t.T. (4

 f 1 (U.sin2 (0t) dt + LT; -

t (2

 j (-UnocT- mSi 2Ut) jdt tI

„Fl - -ju sin2ttt ° TI-V

 UM Urn 2Um

T If The last expression shows that the output voltage is proportional to the amplitude of the variable component and does not depend on a constant level of illumination. Consequently, the proposed implementation of block 28 for monitoring the collection of collector 12 ensures that the radiation detector receiver 11 only responds to radiation from source 2, which is designed to attract no, 1, ..., 2ai.) TJ.

G2 (n + 1) T (2n + 3) tT

L 4

sekomyh, and does not respond to extraneous radiation.

In the case when the trap is filled-. insects, its effective surface decreases and, starting from a certain moment, the output voltage from the filter 32 constant U is less

threshold voltage ujjop.

The threshold element 7 is switched and the disinsector is turned off by its output signal: (see the left part of FIG. A). Thus, the collector overflows with the destroyed insects is eliminated, which eliminates the shorting of the electrode system 3 and thereby increases the reliability of the des-operation. instektor, convenience of its operation. Since the reflecting surface 17 of the collector 12 (FIG. 2) is concave, when placed in the focus of its radiation receiver 11, the ingress of third-party light to it also weakens.

streams, and the placement of the receiver 11 (Fig. 1) at the source 2 light increases the sensitivity of its operation, which is also associated with an increase in the reliability of the disinsector.

Claims (3)

1. Electric disinsector, including a variable connection located in the vie16 housing. booster illumination ;, (p is the mains frequency, j The control input of the modulator 31 is supplied with a square voltage with a square wave equal to 2, formed with a frequency doubler and a voltage driver 35 from the mains voltage (see fig. a, b, e). The transfer coefficient of the modulator 31 is 1 at a high voltage level i at its control input and -1 at the Zero voltage level at its control input. Thus, the output voltage of the modulator 31 has the form (Fig. AD): 1 high-voltage volume tomnik electrically connected to the AC bus network voltage, an electrode system, a control unit and a light source for attracting insects, as well as a collection of destroyed insects, characterized in that it is equipped with a control unit for controlling the collection of a collection of destroyed insects in order to improve operating convenience and reliability and a radiation receiver connected to it, which is located in the space between the light source and the collection of destroyed insects, with the bottom surface of the latter directed to the reflector and facing the light source. 2. The disinsector according to claim 1, about tl and that the block of contact J8 21 20  Rig. / 1 the role of filling up the collection of destroyed insects is made in the form of series-connected and connected; a current-voltage converter, an amplifier, a modulator, a dc filter, a threshold element, and an indicator, as well as connected to the modulator via a frequency generator of a pulse shaper, the latter being connected to an AC mains voltage bus. 3. Disinser-oppp, 1, 2, detached from the fact that the bottom of the collection of destroyed insects is made concave in the direction from the radiation receiver. . The disinsector is PP, 1 and 2, characterized in that the radiation receiver is mounted on the light source. lQ-4 28 31 29 eleven 2 7 23 Geshb 23 Network Th $ us d USc4