CN204441218U

CN204441218U - Circuit breaker and load indicator light

Info

Publication number: CN204441218U
Application number: CN201520220789.1U
Authority: CN
Inventors: 黄月华
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-13
Filing date: 2015-04-13
Publication date: 2015-07-01
Anticipated expiration: 2025-04-13

Abstract

The utility model provides a kind of circuit breaker and load indicator light, and its feature comprises: 220V AC power, halfwave rectifier and filter circuit, condition indication circuit, load circuit.The circuit of circuit breaker described in the utility model and load indicator light only uses a light-emitting diode, by the change of flashing rate can indicate single-phase alternating current presence or absence, opening or closing of load can also be indicated, it be specially adapted to noiseless, the unglazed even loads such as electric iron energising instruction.Make electric consumer no matter night can both know see the operating state of circuit breaker be switched on or switched off, whether circuit breaker lead-out terminal have electricity etc., for electric consumer judges that the operating state of 220V AC power and load provides reference exactly, electric consumer is avoided to cause fault coverage to expand because blindly operating.

Description

Circuit breaker and load indicator light

Technical field

The utility model belongs to electrotechnics and electronics field, relates to a kind of circuit breaker and load indicator light.

Background technology

Because single-pole circuit breaker (being commonly called as: air switch) has many good qualities, be widely used at present, it instead of the old-fashioned bakelite knife switch of that band fuse adopted for a long time comprehensively.But the frosty face of circuit breaker in 220V alternating current transmission line, its operating state is directly perceived not, as: when electricity consumption at night circuit breaker tripping operation occurs or when running into the situations such as power failure, electricity consumer for the moment cannot correct failure judgement character.

The circuit of the utility model circuit breaker described in the utility model and load indicator light only uses a light-emitting diode, by the change of flashing rate can indicate single-phase alternating current presence or absence, opening or closing of load can also be indicated, it be specially adapted to noiseless, the unglazed even loads such as electric iron energising instruction.

In order to make up and overcome the deficiency that existing circuit breaker indicates without operating state, be necessary to develop a kind of servicing unit that can indicate working state of circuit breaker, make electricity consumer no matter night can both know see the operating state of circuit breaker be switched on or switched off, whether circuit breaker lead-out terminal have electricity etc., for electric consumer judges that the operating state of 220V AC power and load provides reference exactly, electric consumer is avoided to cause fault coverage to expand because blindly operating.

Below describe in detail circuit breaker described in the utility model and load indicator light necessity involved in implementation process, guardian technique content.

Utility model content

Goal of the invention and beneficial effect: the circuit of the utility model circuit breaker described in the utility model and load indicator light only uses a light-emitting diode, by the change of flashing rate can indicate single-phase alternating current presence or absence, opening or closing of load can also be indicated, it be specially adapted to noiseless, the unglazed even loads such as electric iron energising instruction.Make electric consumer no matter night can both know see the operating state of circuit breaker be switched on or switched off, whether circuit breaker lead-out terminal have electricity etc., for electric consumer judges that the operating state of 220V AC power and load provides reference exactly, electric consumer is avoided to cause fault coverage to expand because blindly operating.

Circuit working principle: when Circuit Interrupt road device K disconnects, the positive half cycle of 220V alternating current charges to electrochemical capacitor C1 through resistance R1 and silicon rectifier diode Dl.When the voltage on electrochemical capacitor C1 is charged to more than 30V, bidirectional trigger diode KS punctures in pole low impedance state, and electrochemical capacitor C1 is by bidirectional trigger diode KS, LED electric discharge, and LED is glittering.Along with electrochemical capacitor C1 is discharged gradually, bidirectional trigger diode KS ends, and LED extinguishes, and circuit enters again next charge and discharge cycle, LED just constantly flashing.The resistance of resistance R1 determines the charging interval of electrochemical capacitor C1, also determines the glittering frequency of LED, and this situation shows that 220V AC-powered is normal.KS in circuit is bidirectional trigger diode conventional in 1 electric ballast, thyristor regulating volt circuit, and it has negative resistance charactertistic, and its puncture voltage is about 30V.

After night, circuit breaker K tripped, the glimmer low-light that sends of LED can be used as the temporary lighting of distribution box, and user can check process circuit fault by low-light, and power consumption during indicating circuit work is very micro-, substantially can ignore.Electricity consumer is according to LED flicker frequency or do not work, and accurately can judge the nature of trouble of 220V alternating current transmission line.

When connecting circuit breaker K and making load RL work, 220V alternating current charges to electrochemical capacitor C1 through resistance R1, silicon rectifier diode Dl and resistance R2, the parallel connection of silicon rectifier diode D2 two-way simultaneously, electrochemical capacitor C1 charging rate is obviously accelerated, the flicker frequency showing as LED accelerates, illustrate that circuit breaker K is intact, also illustrate that load RL is energized.

From circuit working principle, when circuit breaker K disconnects, due to the unilateal conduction effect of silicon rectifier diode D1, silicon rectifier diode D2, be no matter positive half cycle or the negative half period of 220V alternating current, on load RL, all no current passes through.The utility model is different from the indicator light circuit being usually connected in parallel on switch ends, when circuit breaker K opens, faint electric current is had to supply indicator light by load RL luminous, if this kind of indicator light indicates for the mains switch of fluorescent lamp, indicator light does not work, or arcing phenomenon easily occurs starter for fluorescent.

Technical scheme: circuit breaker and load indicator light, it comprises 220V AC power, halfwave rectifier and filter circuit, condition indication circuit, load circuit, it is characterized in that:

Halfwave rectifier and filter circuit: it is by resistance R1, silicon rectifier diode Dl, electrochemical capacitor C1 and circuit breaker K and resistance R2, silicon rectifier diode D2 forms, one end of live wire end L connecting resistance R1 of 220V AC power and the input of circuit breaker K, the positive pole of another termination silicon rectifier diode Dl of resistance R1, the negative pole of silicon rectifier diode Dl connects the positive pole of electrochemical capacitor C1, the negative pole of electrochemical capacitor C1 meets the zero line side N of 220V AC power, the output of the one termination circuit breaker K of resistance R2, the positive pole of another termination silicon rectifier diode D2 of resistance R2, the negative pole of silicon rectifier diode D2 connects the positive pole of electrochemical capacitor C1,

Condition indication circuit: it is made up of bidirectional trigger diode KS and LED, the model that bidirectional trigger diode KS selects is DB3, the positive pole of the one termination electrochemical capacitor C1 of bidirectional trigger diode KS, the other end of bidirectional trigger diode KS connects the negative pole of LED, and the positive pole of LED meets the zero line side N of 220V AC power;

Load circuit: one end of the output terminating load RL of circuit breaker K, the zero line side N of another termination 220V AC power of load RL.

Accompanying drawing explanation

Accompanying drawing 1 is the circuit breaker that provides of the utility model and load indicator light embodiment circuit working schematic diagram; The input of circuit breaker K is the live wire end L end of incoming cables of 220V AC power, and the output of circuit breaker K meets the zero line side N of 220V AC power by load RL.

Embodiment

According to the circuit breaker shown in accompanying drawing 1 and load indicator light circuit fundamental diagram and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in utility model content, and components and parts technical parameter described in execution mode requires and circuit production main points are carried out enforcement and can be realized the utility model, is further described correlation technique of the present utility model below in conjunction with embodiment.

The technical parameter of components and parts and selection requirement

KS is bidirectional trigger diode, its nominal breakdown voltage 30V, and the model selected is DB3;

D1, D2 are silicon rectifier diode, and the model selected is: 1N4007;

R1, R2 are current-limiting resistance, select 1/4W ~ 1/8W metalfilmresistor or fixed carbon resister, and its resistance is respectively 1.5M Ω, 470K Ω;

LED is light-emitting diode, selects diameter to be the High brightness Red LED of ￠ 5mm;

C1 is electrochemical capacitor, and its capacity is recommended as 10 μ F/50V;

K is single-pole circuit breaker, is called for short: circuit breaker;

RL is load, that is: power consumption equipment.

Circuit production main points, circuit debugging and using method

Because the circuit structure of circuit breaker and load indicator light is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present utility model does not substantially need to carry out debugging and can normally work;

If dislike LED bright not, the capacity of electrochemical capacitor C1 suitably can be strengthened, but unsuitable excessive, otherwise when bidirectional trigger diode KS punctures, discharging current is excessive, easily damages LED;

The resistance of resistance R1, resistance R2 can suitably adjust, and when this Circuit Interrupt road device K disconnects, LED flash period about 4 seconds, when circuit breaker K closes, the flicker cycle of LED is about 1 second.

Circuit components layout of the present utility model, circuit structure design, its shape and size etc. of outward appearance are not all key technologies of the present utility model; neither the claimed technology contents of the utility model; because not affecting the utility model specific implementation process, therefore do not illustrate one by one in the description.

Claims

1. circuit breaker and a load indicator light, it comprises 220V AC power, halfwave rectifier and filter circuit, condition indication circuit, load circuit, it is characterized in that:

Described halfwave rectifier and filtered electrical routing resistance R1, silicon rectifier diode Dl, electrochemical capacitor C1 and circuit breaker K and resistance R2, silicon rectifier diode D2 forms, one end of live wire end L connecting resistance R1 of 220V AC power and the input of circuit breaker K, the positive pole of another termination silicon rectifier diode Dl of resistance R1, the negative pole of silicon rectifier diode Dl connects the positive pole of electrochemical capacitor C1, the negative pole of electrochemical capacitor C1 meets the zero line side N of 220V AC power, the output of the one termination circuit breaker K of resistance R2, the positive pole of another termination silicon rectifier diode D2 of resistance R2, the negative pole of silicon rectifier diode D2 connects the positive pole of electrochemical capacitor C1,

Described condition indication circuit is made up of bidirectional trigger diode KS and LED, the model that bidirectional trigger diode KS selects is DB3, the positive pole of the one termination electrochemical capacitor C1 of bidirectional trigger diode KS, the other end of bidirectional trigger diode KS connects the negative pole of LED, and the positive pole of LED meets the zero line side N of 220V AC power;

In described load circuit, one end of the output terminating load RL of circuit breaker K, the zero line side N of another termination 220V AC power of load RL.