CN103888115A

CN103888115A - Automatic delay power-on device of power supply after exterior line power-failures

Info

Publication number: CN103888115A
Application number: CN201410145711.8A
Authority: CN
Inventors: 周芸
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-04-12
Filing date: 2014-04-12
Publication date: 2014-06-25

Abstract

The invention discloses an automatic delay power-on device of power supply after exterior line power-failures. The automatic delay power-on device is characterized by comprising a 220-V alternating current power source, a heat sensitivity magnetic eraser delay control circuit, a state indicating circuit and a power socket power supply loop. The heat sensitivity magnetic eraser delay control circuit is composed of a silicon rectifier diode D1, a three-pin heat sensitivity magnetic eraser PTC, a direct-current relay J and an electrolytic capacitor C1. In the power socket power supply loop, a live line wiring terminal L of a power socket CZ is connected with a movable contact of a normally-closed contact J-3 of the direct current relay J, a fixed contact of the normally-closed contact J-3 of the direct current relay J is connected with a movable contact of a normally-closed contact J-1 and a movable contact of a normally-open contact J-2, a null line wiring terminal N of the power socket CZ is connected with the null line end of the 220-V alternating current power source, and a protection ground wire wiring terminal E of the power socket CZ is connected with a protection ground wire. The automatic delay power-on device works only when an alternating current external line is powered off, and can be widely used in refrigerating devices, such as air conditioners and freezers, in small supermarkets and restaurants.

Description

The have a power failure automatic time delay power transmission device of sending a telegram here again of outside line

Technical field

The invention belongs to electronic auto-control technology field, relate to a kind of outside line automatic time delay power transmission device of sending a telegram here again that has a power failure.

Background technology

Some power consumption equipment, as: the refrigeration plants such as air-conditioning, refrigerator-freezer prominent chance in the time normally moving has a power failure, and sent a telegram here suddenly after tens seconds, this is very harmful to the refrigeration plant such as air-conditioning, refrigerator-freezer, likely because the refrigerating system pressure of refrigeration plant not yet reaches balance, very easily cause the compressor stall in refrigeration plant and burn out, even burying potential safety hazard.Be necessary so to design the have a power failure electronic installation of the enough automatic time delay power supplies of electric energy afterwards of a kind of outside line.

The automatic time delay power distribution equipment major function of sending a telegram here again of having a power failure is: after alternating current outside line has a power failure, while incoming call again, automatically connect AC power by setting delay time high-power electric appliance, complete automatic power transmission in unattended operation situation, this device only has a power failure and just works in alternating current outside line.It extensively uses on the refrigeration plant such as air-conditioning, refrigerator-freezer in Mini Supermarkets, restaurant, and the feature of this device is that cost of manufacture is low, easy for installation, safe and reliable to operation.

Below describe the outside line of the present invention automatic time delay power transmission device related relevant technologies content in implementation process of sending a telegram here again that has a power failure in detail.

Summary of the invention

Goal of the invention and beneficial effect: some power consumption equipment, as: the refrigeration plants such as air-conditioning, refrigerator-freezer prominent chance in the time normally moving has a power failure, and sent a telegram here suddenly after tens seconds, this is very harmful to the refrigeration plant such as air-conditioning, refrigerator-freezer, likely because the refrigerating system pressure of refrigeration plant not yet reaches balance, very easily cause the compressor stall in refrigeration plant and burn out, even burying potential safety hazard.Send a telegram here the again major function of automatic time delay power distribution equipment of having a power failure is: after alternating current outside line has a power failure, while incoming call again, automatically connect AC power by setting delay time high-power electric appliance, complete automatic power transmission in unattended operation situation, this device only has a power failure and just works in alternating current outside line.It extensively uses on the refrigeration plant such as air-conditioning, refrigerator-freezer in Mini Supermarkets, restaurant, and the feature of this device is that cost of manufacture is low, easy for installation, safe and reliable to operation.

Operation principle: the have a power failure automatic time delay power transmission device of sending a telegram here again of outside line adopts the tripod thermal sensitivity demagnetizer PTC in colour TV, and silicon rectifier diode D1, direct current relay J, electrochemical capacitor C1 and incandescent lamp HL.

Under normal temperature condition, the resistance R 2 in tripod thermal sensitivity demagnetizer PTC only has 27 Ω.This device is connected the moment of 220V AC power, the moment of direct current relay J normally-closed contact J-1,220V AC power is after silicon rectifier diode D1 halfwave rectifier, power to direct current relay J, auxiliary delay capacitor C1 and incandescent lamp HL by the resistance R 2 in PTC rapidly, make direct current relay J normally opened contact J-2 closure.Meanwhile, direct current relay J normally-closed contact J-3 moment disconnects, and at this moment tripod supply socket CZ, without electricity, refrigeration plant is not worked without electricity, and the incandescent lamp HL that is used to indicate operating state keeps lighting.

Tripod thermal sensitivity demagnetizer PTC is in galvanization, because resistance R 1 and resistance R 2 wherein heat up gradually, in the time that internal temperature reaches Curie point, the increase that will suddenly change of resistance value in tripod thermal sensitivity demagnetizer PTC, make the resistance of resistance R 2 approach open circuit, direct current relay J coil all changes state because dead electricity makes its normally-closed contact J-1, normally opened contact J-2 and normally-closed contact J-3, circuit self-locking state is removed, incandescent lamp HL also extinguishes at once, at this moment must be electric in tripod supply socket CZ, refrigeration plants etc. power up starts working.

Belong to mechanical action because direct current relay J respectively organizes contact, it far lags behind electronics action, and institute thinks that 3 groups of contacts that guarantee direct current relay J reliably switch, and in circuit, special access electrochemical capacitor C1 is for assisting time delay.In addition, require before direct current relay J normally-closed contact J-1 is connected on normally-closed contact J-3.

Technical characterictic: the have a power failure automatic time delay power transmission device of sending a telegram here again of outside line, it comprises 220V AC power, thermal sensitivity demagnetizer delay control circuit, supply socket current supply circuit and condition indication circuit, it is characterized in that:

Thermal sensitivity demagnetizer delay control circuit: it is by silicon rectifier diode D1, tripod thermal sensitivity demagnetizer PTC, direct current relay J and electrochemical capacitor C1 composition, 220V AC power live wire termination normally-closed contact J-1 fixed contact and normally opened contact J-2 fixed contact, normally-closed contact J-1 moving contact and normally opened contact J-2 moving contact connect silicon rectifier diode D1 positive pole, silicon rectifier diode D1 negative pole connects the 2nd pin of tripod thermal sensitivity demagnetizer PTC, the 3rd pin of tripod thermal sensitivity demagnetizer PTC connects direct current relay J coil one end and electrochemical capacitor C1 positive pole, the direct current relay J coil other end and electrochemical capacitor C1 negative pole and tripod thermal sensitivity demagnetizer PTC the 1st pin connect 220V AC power zero line side,

Supply socket current supply circuit: the sub-L of hot terminal of supply socket CZ connects direct current relay J normally-closed contact J-3 moving contact, direct current relay J normally-closed contact J-3 fixed contact connects direct current relay J normally-closed contact J-1 moving contact and normally opened contact J-2 moving contact, the zero line binding post N of supply socket CZ connects 220V AC power zero line side, and the protection ground wire binding post E of supply socket CZ connects protection ground wire;

Condition indication circuit: incandescent lamp HL mono-termination tripod thermal sensitivity demagnetizer PTC the 3rd pin, another termination of incandescent lamp HL 220V AC power zero line side, the power that requires incandescent lamp HL to use is 10W.

Accompanying drawing explanation

Accompanying drawing 1 is the outside line circuit working schematic diagram of automatic time delay power transmission device of sending a telegram here again that has a power failure; The the 1st and the 2nd pin connecting resistance R1 of tripod thermal sensitivity demagnetizer PTC in accompanying drawing 1 circuit, resistance R 1 is auxiliary heating resistance; The 2nd pin of tripod thermal sensitivity demagnetizer PTC and the 3rd pin connecting resistance R2, resistance R 2 is thermal sensitivity field-discharge resistance; J is 220V direct current current relay.

Embodiment

According to outside line shown in accompanying drawing 1 automatic time delay power transmission device circuit working schematic diagram and the accompanying drawing explanation of sending a telegram here again that have a power failure, and according to annexation between components and parts in the each several part circuit described in summary of the invention, and the components and parts technical parameter described in execution mode requires and circuit production main points are implemented to realize the present invention, below in conjunction with embodiment, correlation technique of the present invention is further described.

The technical parameter of components and parts and selection requirement thereof

PTC is tripod thermal sensitivity demagnetizer, and the model of selecting is 27RM, also can select the colour kinescope demagnetization tripod thermal sensitivity demagnetizer PTC of other models, also can replace with two pin thermal sensitivity field-discharge resistances in colour TV; The model difference of PTC, little on the impact that the circuit delay time causes;

D1 is silicon rectifier diode, and the model of selecting is 1N4007;

Direct current relay J should select small-sized 220V direct current relay, requires to select the impedance of direct current relay coil to be the bigger the better, and direct current relay J can select the product of 3 groups of contacts, that is: normally-closed contact J-1, normally opened contact J-2 and normally-closed contact J-3; Contact current >=40A of normally-closed contact J-1 and normally-closed contact J-3, or select according to the power of refrigeration plant;

C1 is electrochemical capacitor, and selecting capacity is 4.7 μ F, requires withstand voltage >=400V of electrochemical capacitor C1;

HL is incandescent lamp, and the power of recommendation incandescent lamp is 10W.

Circuit production main points and circuit debugging

Because of have a power failure send a telegram here the again circuit structure of automatic time delay power transmission device of outside line fairly simple, as long as the electronic devices and components performance of generally selecting is intact, and the components and parts annexation in accompanying drawing 1 is welded to specifications, physical connection line and welding quality are after careful inspection is correct, and circuit of the present invention does not need to debug and can normally work substantially;

It is certain associated that circuit delay time length of the present invention and incandescent lamp HL watt level have, and generally, incandescent lamp HL power is less, and delay time is just longer; Incandescent lamp HL power is larger, and delay time is just shorter.Delay time length data are substantially: when incandescent lamp HL power uses 10W, and time delay approximately 180 seconds; When incandescent lamp HL power uses 15W, time delay approximately 150 seconds;

In the situation that not changing incandescent lamp HL power, if when the tripod thermal sensitivity demagnetizer PTC in circuit is replaced by the inner two pin thermal sensitivity demagnetizer PTC not using with the 1 colour kinescope demagnetization of auxiliary heating resistance R, the delay time of circuit can be more longer so.

Claims

1. the have a power failure automatic time delay power transmission device of sending a telegram here again of outside line, it comprises 220V AC power, thermal sensitivity demagnetizer delay control circuit, supply socket current supply circuit and condition indication circuit, it is characterized in that:

Described thermal sensitivity demagnetizer delay control circuit is by silicon rectifier diode D1, tripod thermal sensitivity demagnetizer PTC, direct current relay J and electrochemical capacitor C1 composition, 220V AC power live wire termination normally-closed contact J-1 fixed contact and normally opened contact J-2 fixed contact, normally-closed contact J-1 moving contact and normally opened contact J-2 moving contact connect silicon rectifier diode D1 positive pole, silicon rectifier diode D1 negative pole connects the 2nd pin of tripod thermal sensitivity demagnetizer PTC, the 3rd pin of tripod thermal sensitivity demagnetizer PTC connects direct current relay J coil one end and electrochemical capacitor C1 positive pole, the direct current relay J coil other end and electrochemical capacitor C1 negative pole and tripod thermal sensitivity demagnetizer PTC the 1st pin connect 220V AC power zero line side,

In described supply socket current supply circuit; the sub-L of hot terminal of supply socket CZ connects direct current relay J normally-closed contact J-3 moving contact; direct current relay J normally-closed contact J-3 fixed contact connects direct current relay J normally-closed contact J-1 moving contact and normally opened contact J-2 moving contact; the zero line binding post N of supply socket CZ connects 220V AC power zero line side, and the protection ground wire binding post E of supply socket CZ connects protection ground wire.

2. the outside line according to claim 1 automatic time delay power transmission device of sending a telegram here again that has a power failure, it is characterized in that: incandescent lamp HL mono-termination tripod thermal sensitivity demagnetizer PTC the 3rd pin in condition indication circuit, another termination of incandescent lamp HL 220V AC power zero line side, the power that requires incandescent lamp HL to use is 10W.