CN201252420Y

CN201252420Y - Domestic generator protector

Info

Publication number: CN201252420Y
Application number: CNU200820052973XU
Authority: CN
Inventors: 向绍良
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-04-25
Filing date: 2008-04-25
Publication date: 2009-06-03
Anticipated expiration: 2018-04-25

Abstract

The utility model relates to a domestic generator protector comprising a casing and an electronic protection device, wherein the electronic protection device is mounted in the casing of the protector. The domestic generator protector is characterized in that the electronic protection device is composed of a commercial power input body, a generated power input body and an output body among which a commercial power-generated power switching control switch is connected, and the generated power input body is connected with an under/over voltage protective device in series. The electronic protection device is further internally provided with an automatic flame-out device, a commercial power working indicator, a generated power working indicator and an under/over voltage working indicator. The commercial power and the generated power are automatically switched without manual switching, thereby preventing reverse power supply. The domestic generator protector has the function of complete protection on generator under-voltage and over-voltage. The domestic generator protector can switch to the commercial power immediately upon coming of the commercial power, and automatically shut off the generator simultaneously. The domestic generator protector can switch to the generated power immediately upon failure of the commercial power, and starts up the generator to automatically generate power simultaneously (an electronic lighting generator is required), and thereby the domestic generator protector has the advantages of safety and convenience.

Description

The household motor protector

Technical field

The utility model is a kind of protector of household machine equipment.

Background technology

The auxiliary products that part household machine equipment is arranged in the market only have and prevent to send the electric work energy, but do not possess simultaneously from not moving lock, auto extinguishing and startup function.The household facility have simply regulates output voltage by regulating throttle, but defencive function is imperfect, must the normal operation of wait household machine just can send electricity, outage.The household machine does not possess automatic startup, flame-out function at present.

Summary of the invention

The purpose of this utility model is exactly in order to overcome the prior art deficiency, by designing an electronic circuit, come automatic switch-over circuit, generating and city's electric energy are automaticallyed switch, civil power switches to mains-supplied after coming, and automatically that the household machine is flame-out, the loss (be because of household machine generating civil power expense several times) of the energy can be reduced like this, and the noise pollution of fuel electric generator can be shortened.Simultaneously because household machine performance characteristics installs complete under-voltage, an over-pressure safety device again additional.

Solving the technical scheme that its technical problem adopts is: the protector that a kind of household machine equipment is provided; form by housing and electronic protection; electronic protection is installed in the housing of protector; it is characterized in that: electronic protection is imported body, generating input body and output body by civil power; be connected with civil power generating switching controls switch therebetween, generating input body serial connection is under-voltage, over-pressure safety device is formed.Also be provided with automatic cut off device and civil power work indication, generating work indication and under-voltage, overvoltage protection relay indicating light in the protective device.Its basic functional principle is: when civil power is stopped power supply, the 220V AC relay is in normally off, civil power generating switching controls switch disconnects civil power, to prevent to send electricity, when the Generation Control switch opens, the voltage of generator output is delivered to civil power generating switching controls switch through under-voltage, overvoltage crowbar and is exported, when generating voltage reaches 180V to 250V, two voltage comparator lC1 output high level drive through triode Q, and J2 is connected output; When generating voltage was lower than 180V or is higher than 250V, J2 disconnected, and no-voltage is sent, play under-voltage, over-voltage protecting function, in under-voltage, overvoltage crowbar, also and be connected to relay J 3, be used for controlling the electronic striking starting switch, after starting, just disconnect electronic ignitor switch; When the city power recovery powers, the action of 220V AC relay, its three groups of switches change lock simultaneously, switch to mains-supplied, disconnect the power supply of generating electricity, and flame-out simultaneously output control C, D termination are led to, with engine misses.

The beneficial effects of the utility model are: civil power can automatically switch with generating, does not need manually to change lock, prevents to send; Has the under-voltage and overvoltage complete preservation function of generator; Civil power switches to civil power, immediately simultaneously with the generator auto extinguishing after coming; Civil power is had no progeny, and switches to generating immediately, enables generator simultaneously and generates electricity (needing the sub-sparking formula of distribution generator) safe and convenient automatically.

Description of drawings:

Accompanying drawing is a circuit connection diagram of the present utility model.

Embodiment:

Embodiment as shown in drawings; the utility model is made up of housing and electronic protection; electronic protection is installed in the housing of protector; it is characterized in that: electronic protection is imported body (30), generating input body (31) and output body by civil power and is formed; be connected with civil power generating switching controls switch (33) therebetween, under-voltage, the over-pressure safety device (32) of generating input body serial connection.Wherein: the external 220V power frequency AC in H, I two ends of civil power input (30); civil power relay indicating light D3 connects back and connects therebetween with R6; all receive on the housing binding post of protector: civil power generating switching controls switch (33) is made of A, the B end of relay J 1, output body, flame-out output control C, D end; 1,2,3 is one group among the electromagnetic relay JI, and 4,5,6 are

Group, 7,8,9 are

Group, 1,4,7 for often opening, and 3,6,9 is normally closed.The coil of relay J 1 is connected on civil power input H, 1 end, carry out step switch 1,4 pin and also be connected on civil power input H, 1 end, 2,5 pin connect A, B output, 3, be connected on M, the N end of generating input (31) behind the execution step switch of 6 pin serial connection relay J 2,7,8 pin connect the flame-out output of C, D, wherein and sending and receiving motor switch K, also receive on the housing binding post of protector; Under-voltage; over-pressure safety device (32) is by dc power supply and two voltage comparator circuits and triode Q drive circuit; control relay J2 constitutes; the elementary generating input M that is attempted by of the step-down transformer T of dc power supply; the N end; secondary output meets rectifying tube D1; the D2 positive pole; D1; D2 negative pole and receiving together is connected with 1 pin of integrated package of pressure-stabilizing IC2; also and connect the anode of filter capacitor C; 3 pin of IC2 connect two voltage comparator ic 1a; the collector electrode of the feeder ear of IC1b and triode Q; 2 pin of IC2 and capacitor C negative terminal; IC1a; the secondary centre tap that the earth terminal of IC1b is connected in transformer T constitutes ground wire; R1; R2 series connection back is in parallel with capacitor C; R3; W1; W2; after connecting successively, R4 is attempted by between 3 pin and ground wire of IC2; the slip termination IC1a of potentiometer W1+end; the slip termination IC1b-end of potentiometer W2; IC1a-end is with the IC1b+ end and receive resistance R 1; between the R2; IC1a; the output of IC1b links to each other with the base stage of triode Q; R7 is connected between the collector electrode and base stage of triode Q; the coil of relay J 2 and D4 and connect after receive again between the emitter and ground wire of triode Q; D4 plus earth line; the execution switch series of J2 is connected between the 3rd pin of M end and J1; also be provided with generating relay indicating light D5 and under-voltage in the protective circuit; overvoltage protection relay indicating light D6, D5 and resistance R 9 are connected between the 3rd pin of N end and J1; D6 connects with resistance R 5 on the execution switch that is attempted by J2 again.In under-voltage, overvoltage crowbar, also and be connected to relay J 3, be used for controlling the electronic striking starting switch, the coil of relay J 3 be connected between the positive pole and ground wire of capacitor C after R8 connect, the step switch of J3 connects to start and exports E, F and hold, and receives shell again.

Among the different embodiment, described relay J 1, J2, J3 are electromagnetic relay, reed relay or solid-state relay.Change it and allow size of current, can satisfy the specification requirement of protector different capacity.

Claims

1, a kind of household motor protector; form by housing and electronic protection; electronic protection is installed in the housing of protector; it is characterized in that: electronic protection is imported body (30), generating input body (31) and output body by civil power and is formed; be connected with civil power generating switching controls switch (33) therebetween, under-voltage, the over-pressure safety device (32) of generating input body serial connection.

2, household motor protector according to claim 1 is characterized in that:

The external 220V power frequency AC in H, I two ends of a, civil power input (30), civil power relay indicating light D3 are connected back and are connect therebetween with R6, all receive on the housing binding post of protector; Civil power generating switching controls switch (33) is made of A, the B end of relay J 1, output body, flame-out output control C, D end, 1,2,3 is one group among the electromagnetic relay JI, and 4,5,6 is one group, and 7,8,9 is one group, 1,4,7 for often opening, and 3,6,9 is normally closed; The coil of relay J 1 is connected on civil power input H, I end, carry out step switch 1,4 pin and also be connected on civil power input H, I end, 2,5 pin connect A, B output, 3, be connected on M, the N end of generating input (31) behind the execution step switch of 6 pin serial connection relay J 2,7,8 pin connect the flame-out output of C, D, wherein and sending and receiving motor switch K, also receive on the housing binding post of protector;

B, under-voltage, over-pressure safety device (32) is by dc power supply and two voltage comparator circuits and triode Q drive circuit, control relay J2 constitutes, the elementary generating input M that is attempted by of the step-down transformer T of dc power supply, the N end, secondary output meets rectifying tube D1, the D2 positive pole, D1, D2 negative pole and receiving together is connected with 1 pin of integrated package of pressure-stabilizing IC2, also and connect the anode of filter capacitor C, 3 pin of IC2 connect two voltage comparator ic 1a, the collector electrode of the feeder ear of IC1b and triode Q, 2 pin of IC2 and capacitor C negative terminal, IC1a, the secondary centre tap that the earth terminal of IC1b is connected in transformer T constitutes ground wire, R1, R2 series connection back is in parallel with capacitor C, R3, W1, W2, after connecting successively, R4 is attempted by between 3 pin and ground wire of IC2, the slip termination IC1a of potentiometer W1+end, the slip termination IC1b-end of potentiometer W2, IC1a-end is with the IC1b+ end and receive resistance R 1, between the R2, IC1a, the output of IC1b links to each other with the base stage of triode Q, R7 is connected between the collector electrode and base stage of triode Q, the coil of relay J 2 and D4 and connect after receive again between the emitter and ground wire of triode Q, D4 plus earth line, the execution switch series of J2 is connected between the 3rd pin of M end and J1, also be provided with generating relay indicating light D5 and under-voltage in the protective circuit, overvoltage protection relay indicating light D6, D5 and resistance R 9 are connected between the 3rd pin of N end and J1, D6 connects with resistance R 5 on the execution switch that is attempted by J2 again; In under-voltage, overvoltage crowbar, also and be connected to relay J 3, be used for controlling the electronic striking starting switch, the coil of relay J 3 be connected between the positive pole and ground wire of capacitor C after R8 connect, the step switch of J3 connects to start and exports E, F and hold, and receives shell again.

3, household motor protector according to claim 2 is characterized in that: described relay J 1, J2, J3 are electromagnetic relay, reed relay or solid-state relay, change it and allow size of current, can satisfy the specification requirement of protector different capacity.