CN2208766Y - High-voltage arc-free trip device for neon lamp - Google Patents

Abstract

The utility model relates to a high-voltage arc-free trip device for a neon lamp. Because the strong electric arc can be produced in the process of high-voltage switching the neon lamp, the contact can be burnt out quickly. After the utility model adopts a pulse oscillating circuit, the utility model is added with a crossing controller IC 2 which can control a step switch DJ and a controlled silicon SCR; SCR can control a high-voltage transformer T2; the DJ can control a multi-contact switch DK connected with the neon lamp. When two output points of the crossing controller IC 2 can make the SCR switched off, the DJ can control the multi-contact switch DK to conduct the transform under the zero position so that the electric arc can not be produced. The utility model can make the high voltage transformed directly. The utility model has the advantage of the simple structure and the utility model can extend the service life of the contact.

Description

High-voltage arc-free trip device for neon lamp

The utility model relates to a kind of high pressure arc-free trip device, is that a kind of and neon light tube and the supporting use of high-tension transformer make neon light not produce the device of electric arc when high pressure switches.

The high pressure neon light is bright in luster, brightness is high, shape is varied is used in advertisement and the decoration widely.Because 15000 volts of high pressure neon light tube operating voltage high pressure, so when high pressure switches, must produce strong electric arc, make that the contact is very fast to be burnt out.At present be that jumping machine domestic or external neon light all can not realize not having the arc switching, so useful life is all very short.

The purpose of this utility model is at above-mentioned shortcoming, designs a kind of neon light high pressure that does not produce electric arc when high pressure switches and jumps machine.

Scheme of the present utility model is as follows: in comprising the circuit that power supply, pulse oscillation circuit, high pressure transformation are formed, add a Switch Controller after high-tension transformer and impulse hunting road.This Switch Controller has two output points, and an output point and a step switch join, the multiconductor high-voltage switch gear that joins by step switch control and neon light.The bidirectional triode thyristor that another output point and control high-tension transformer join joins.When an output point of Switch Controller was low level, bidirectional triode thyristor turn-offed, and high-tension transformer is in off state.The step switch DJ of another point control gets electric, and the multiconductor high-voltage switch gear is rotated once, and this moment, the switching of high-voltage switch gear was equivalent to the switching of zero potential, so do not produce electric arc.When an end of Switch Controller is high level, the conducting of control bidirectional triode thyristor, it is electric that high-tension transformer is got, and lights neon light tube.This moment, another output point also was a low level, and step switch is not worked.So circulation makes the switching of high side switch can not produce electric arc fully.

The utility model can realize fully that the high-voltage switch gear of neon light does not produce electric arc in transfer process, and the life-span of switch contact is prolonged greatly, and can prevent the interference that electric arc produces.Complete machine control mode and time length all can arbitrarily be aligned by customer requirements, light is changed be more suitable for the modern advertising requirement.It is unapproachable that these performances all are that existing high pressure is jumped machine, and the utility model is simple in structure, processing performance repeated fabulous, be beneficial to and produce by batch.Fluorescent tube, the high pressure of many multiple colors of a high-tension transformer band directly switch, and use, saved greatly investment for a long time.

Below in conjunction with accompanying drawing the utility model is illustrated:

Fig. 1 is a line map of the present utility model.

The input power supply enters pulse oscillation circuit after the working power that primary transformers T1, rectifier bridge D1-D4, DW, R1, C1 form, this pulse oscillation circuit is made up of R2, R3, C2 and time-base integrated circuit (NE555).Pulse oscillation circuit and Switch Controller IC2 join.IC2(941) two output points (A, B) are arranged, an A point and a step switch DJ join, DJ control multiconductor high-voltage switch gear DK.B point control bidirectional triode thyristor SCR.SCR directly controls high-tension transformer T2.Two ends one end of T2 level of high-tension transformer and the common point of a plurality of neon light tubes join, and the other end joins by the other end of multifinger high-voltage switch gear DK and neon light tube group.Behind high-tension transformer T2 control in the present embodiment L1, L2, four fluorescent tubes of L3, L4, the power connection, the continuous output pulse signal of IC1 is to promote IC2 work.Bidirectional triode thyristor turn-offs when IC2 output point B is low level, and the A point of IC2 is a high level, and step switch DJ gets electric work, and high-voltage switch gear DK is rotated once.Because be in off state by the elevated pressure transformer T2 of SCR this moment, the equal zero switching of current potential of the switching of high-voltage switch gear.So do not produce electric arc.When the B of IC2 point is in high potential, bidirectional triode thyristor SCR conducting, high-tension transformer T2 gets the electric a certain fluorescent tube of lighting, and this moment, the A point of IC2 was a low level, and DJ does not work.In the present embodiment, 15000 volts of high pressure outputs, input 220V, the 50Hz of T1.Step switch adopts 24 volts of decade switch.

Claims (1)

1, a kind of neon light high pressure arc-free trip device, comprise by transformer T1, rectifier bridge (D1-D4), C1, R1, the working power that DW forms and by R2, R3, C2, the pulse oscillation circuit that time-base integrated circuit IC1 (NE555) forms, it is characterized in that above-mentioned pulse oscillation circuit (IC1, R2, R3, C2) and a Switch Controller IC2 (941) join, above-mentioned Switch Controller IC2 has two output point (A, B), output point A and step switch DJ join, step switch DJ control is connected on high-tension transformer T2 secondary coil one end and neon light tube group (L1, L2, L3 ...) multiconductor high-voltage switch gear DK between the end, another output point B and the bidirectional triode thyristor SCR of IC2 join, bidirectional triode thyristor SCR and high-tension transformer T2 just an end of coil join the other end of the secondary coil of high-tension transformer T2 and neon light tube (L1, L2, L3 ...) the other end join.

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