CN86205635U - Safe electronic mouse trapper - Google Patents

Abstract

The utility model provides a safe electronic mouse trapper, which comprises a boosted circuit, a delaying switching automatic control circuit and a sound alarm circuit, etc. The switching automatic control circuit is controlled by an easy and safe bimetallic strip temperature control element. The sound alarm circuit adopts a high-pressure avalanche oscillation circuit which is composed of a transistor and three resistors, which simplifies the circuit structure of the electronic mouse trapper. The utility model has the advantages of low cost and safe work.

Description

Safe electronic mouse trapper

The utility model relates to a kind of safe electronic mousetrap, is particularly suitable for the electronic mousetrap that occasions such as food factory, plant, warehouse, dining room, grain distribution station, goods yard are used.

The application of electronic mousetrap is existing historical for many years, and its basic principle is to utilize transformer that civil power is boosted to 1800V～2000V output cloth to become electrical network, just can be hit unconsciously after the mouse contact.General transformer is operated in the instantaneous overload state.After mouse is hit, by time-delay auto-power-off device auto power off.Present existing mousetrap generally adopts the contact of sampling, amplification, delay circuit control relay to disconnect the power supply of main circuit.This method complex circuit, cost height, and can not recover automatically after the outage, if untimely processing, mouse still has the situation of running away.Ring aspect the warning in news, though owing to adopt moving-coil speaker to give great volume, the cost height, power consumption is big, volume is also big, so most employing piezoelectric ceramics is made sounding component.Transistorized self-maintained circuit promotes the potsherd sounding under the low-voltage dc power supply but traditional method adopts.Its shortcoming is a complex circuit, the volume deficiency.Above prior art serves as typical case's representative (seeing the 30th page of national first electronics mousing technical conferences data monograph) with the circuit of the LDS-A type safe electronic mousetrap that the favorable to the people electrical apparatus factory in China Chengdu produces.

The purpose of this utility model is the electronic mousetrap that a kind of circuit of design is simple, safe and reliable, have the function that kills rats more by force.

The technical solution of the utility model as shown in Figure 1, comprise step-up transformer B, time-delay break-make automatic control circuit, news ring warning circuit and outlet line is formed, in order to solve the prior art circuits complexity, the cost height, shortcomings such as security reliability difference, time-delay break-make automatic control circuit adopts the temperature control element of bimetal leaf in the technical program, promptly on the bimetal leaf around being serially connected in behind one section insulation resistance wire on the primary loop, big electric current is arranged by after the regular hour above during mousing work, the fuel factor that produces makes bi-metal plate deformed, to the contact is disconnected, play the time-delay effect of outage automatically.Simultaneously, if fail mouse is in time disposed, the bimetal leaf cooling resets after 1～5 minute, and power supply recovered electrical working time again 5～10 seconds automatically.Played the effect that mouse can not be brought back to life run away and report to the police repeatedly like this.The news of the technical program are rung warning circuit and have also been changed traditional method, according to transistor snowslide oscillation principle under the high voltage situation, have only used the resistance of a normal transistor and three 1/8 W to form oscillating circuit, promote the piezoelectric ceramic piece sounding.Be characterized in being directly used on the civil power, circuit is simple, cost is low, give great volume.

The circuit structure that the utility model adopts not only makes the electronic mousetrap performance more reliable and more stable, and owing to simply greatly reduces cost.

Embodiment of the present utility model 1 is illustrated in conjunction with the accompanying drawings: transformer B boosts to 1800V～2000V with civil power.Bimetal leaf temperature control component S goes up the resistance with 0.2mm insulation resistance wire coiling 40 Ω.Triode adopts 3DG201, R ₆Be 1/8 W100K, R ₇Be 1/8 W180K, R ₈Be 1/8 W100 Ω.

Claims (1)

1. A kind of safe electronic mousetrap, form by step-up transformer, time-delay break-make automatic control circuit, news sound warning circuit and output circuit, the break-make automatic control circuit that it is characterized in that delaying time adopts the bimetal leaf temperature control element, and news are rung warning circuit and adopted the high pressure avalanche oscillation circuit of a transistor and three resistance compositions to realize.