CN2694589Y

CN2694589Y - Gas generating set self-starting device

Info

Publication number: CN2694589Y
Application number: CN 200420033219
Authority: CN
Inventors: 王蔚鹤; 张厚萍; 刘琳
Original assignee: CHONGQING AOTAI ELECTROMECHANICAL Co Ltd
Current assignee: CHONGQING AOTAI ELECTROMECHANICAL Co Ltd
Priority date: 2004-03-11
Filing date: 2004-03-11
Publication date: 2005-04-20
Anticipated expiration: 2014-03-11

Abstract

The utility model discloses a gas generating set self-starting device which is characterized in that the gas generating set self-starting device comprises a commercial power input plug socket, a commercial power and a generator output plug socket, a relay, an air switch, a commercial power and a generator detection circuit. Two input terminals of the commercial power input plug socket are respectively are connected with a frequently open terminal of the close and open contact point of the relay, one terminal of the relay coil winding and the other end of the coil winding, a terminal of the generator set power output, a common connecting terminal of an output terminal of the generator output plug socket. The frequently close terminal of the close and open contact point of the relay is connected with the other terminal of the generator set power output. The converting contact point of the relay is connected with a terminal of the air switch. The other end of the air switch is connected with other output terminal of the commercial power and the generator output plug socket. The input terminal of the commercial power and the generator detection circuit is respectively connected with the output terminal of the generator set and the commercial power signal. The output terminal is respectively connected with the input terminals of the carburetor electromagnetic valve controller of the generator set, the petrol engine starting controller and the petrol engine closing down controller.

Description

Gasoline engine generator group self-starting device

One, technical field

The utility model relates to a kind of control device of gasoline engine generator group, and particularly a kind of gasoline engine generator group starts and close the self-starting device of generating set at emergency rating.

Two, background technology

Continuous progress along with society, people's material and cultural life also improves constantly, various ligthing paraphernalias, household electrical appliance, microcomputer etc. are by people's extensive use, they all be unable to do without the electric main power supply, and particularly shop, bar, public place of entertainment, office, office room all need the continual normal power supply of civil power.For avoiding unexpected the power failure occurring, have Small Generating Unit with Gasoline mostly as stand-by power supply.Present gasoline engine generator group does not have self-starting device mostly, when power outage takes place, need operating personnel go manual cut off being connected of user load and city's electrical network after, connect generating set and user load again, manual then or electric starter-generator group is powered to user load; After the power supply of city's power system restoration, also need operating personnel to go to the generator scene again, it is online that shutdown is earlier switched back civil power with user load again, recovers city's electrical network user load is powered, and therefore can cause power failure again.They all can not start automatically when city's electrical network has a power failure and are electric, and the automatic switchover of generation outage unit during incoming call needs operating personnel's manual operation, and troublesome poeration uses inconvenience.

Three, summary of the invention

The purpose of this utility model is intended to overcome the deficiencies in the prior art, provide a kind of simple in structure, use simple, conveniently, realize power supply and the automatic switchover of city's electric network source and the gasoline engine generator group self-starting device of unit self-starting of generating set.

The purpose of this utility model is to adopt such technical scheme to realize; a kind of gasoline engine generator group self-starting device; be characterized in including the civil power input socket; civil power and generator accessory power outlet; relay; air switch and civil power and generator testing circuit; the Chang Kaiduan of the input of civil power input socket and the make-and-break contact of relay; one end of relay coil winding connects; another input of civil power input socket and the other end of relay coil winding; one end of generating set power supply output; the end that connects altogether of an output of civil power and generator accessory power outlet connects; the normal-closed end of the make-and-break contact of relay is connected with the other end of generating set power supply output; the change over contact of the make-and-break contact of relay is connected with an end of air switch; the other end of air switch is connected with another output of civil power and generator accessory power outlet; the detection signal input of civil power and generator testing circuit is connected with city's signal of telecommunication with the generating set output respectively, the control output end of testing circuit respectively with generating set in the carburetor electromagnetic valve controller; the gasoline engine starting controller is shut down the controller input with gasoline engine and is connected.

The utility model connects city's power supply through the civil power input socket, and civil power and generator power supply accessory power outlet connect user load.When the civil power normal power supply, the civil power input, the relay winding coil gets, normally-closed contact is disconnected, normally opened contact closure, civil power often open the contact and air switch is connected civil power and generator power supply accessory power outlet, and civil power is powered to user load, cut off being connected of generator and user load simultaneously, city's signal of telecommunication detects civil power by testing circuit and has or not.When the civil power sudden power, relay coil winding dead electricity, normally-closed contact recovers to connect, and normally opened contact disconnects, and the output of generator is connected with user load, the cut-out civil power is connected with load, civil power blackout in the testing circuit is judged mains failure, and the testing circuit output provides enabling signal to the gasoline engine starting controller, the control generating set starts, and generator starts successfully after normally-closed contact and air switch are powered to user load.After civil power recovers again; the relay coil winding gets; the relay normally open contact closure; moment switches to the mains-supplied circuit with user load; user load transfers mains-supplied to; recovering on the testing circuit simultaneously has city's signal of telecommunication input, and testing circuit output output carburetor electromagnetic valve control signal and gasoline engine are shut down control signal, and control gasoline engine generator group is shut down.The utility model structure letter, safe and reliable, easy to use, simple to operate can be finished power supply and the automatic switchover of city's electric network source and the self-starting of generating set of generating set, realizes gasoline engine generator group unattended operation.

Four, description of drawings

The utility model has following accompanying drawing:

Fig. 1 is circuit theory diagrams of the present utility model;

Fig. 2 is the civil power among Fig. 1 and the circuit theory diagrams of generator testing circuit.

Five, embodiment

Further specify embodiment of the present utility model with reference to the accompanying drawings.As shown in Figure 1; a kind of gasoline engine generator group self-starting device; include civil power input socket X1; civil power and generator accessory power outlet X2; relay J 1; air switch QF and civil power and generator testing circuit JC; the input 3 of civil power input socket X1 and the Chang Kaiduan of the make-and-break contact J1-1 of relay J 1; one end of relay coil winding connects; another input 2 of civil power input socket X1 and the other end of relay J 1 coil windings; one end of generating set F power supply output; the end that connects altogether of the output 2 of civil power and generator accessory power outlet X2 connects; the normal-closed end of the make-and-break contact J1-1 of relay J 1 is connected with the other end of generating set F power supply output; the change over contact of the make-and-break contact J1-1 of relay J 1 is connected with the end of air switch QF; the other end of air switch QF is connected with another output 3 of civil power and generator accessory power outlet X2; the detection signal input AC1 of civil power and generator testing circuit JC; AC2; 7 are connected the control output end 8 of testing circuit JC respectively with city's signal of telecommunication with the generating set output; 9; 10 respectively with generating set in the carburetor electromagnetic valve controller; the gasoline engine starting controller is shut down the controller input with gasoline engine and is connected.

By among the embodiment shown in the drawings; civil power and generator testing circuit JC are by single-chip microcomputer U4; A/D converter U1; operational amplifier N3C; rectifier bridge B1; diode V2; V6; V8; V9; resistance R 7; R10; R15-R17; R20; R21; potentiometer P1; P2; capacitor C 3; C4; C8; C10; C11; crystal oscillator G1 forms; 1 of detection signal input rectifier bridge; 3 pin AC1; AC2 is connected with the generating set output; the positive pole 7 of diode V9 is connected with city's signal of telecommunication; control output end 8; 9; 18 of 10 single-chip microcomputer U4; 17; 19 pin respectively with generating set in carburetor electromagnetic valve controller input; gasoline engine starting controller input is shut down the controller input with gasoline engine and is connected, as shown in Figure 2.This single-chip microcomputer U4 that picks up among the slowdown monitoring circuit JC adopts AT89C52, when testing circuit does not move at ordinary times at generating set, by the accumulator jar power supply of generating set, when generator operation, is powered through AC1, AC2 pin by generator output.The line voltage signal is imported through the positive pole of 7 pin diode V9, takes a sample through potentiometer P2 and sends into input 30 pin of single-chip microcomputer U4 through P26, and single-chip microcomputer scans this input at any time, and whether detect civil power normal.When the civil power dead electricity, after judge confirming, 17 (P35) pin of single-chip microcomputer U4 is that control output end 9 becomes low level from high level, and control gasoline engine starting controller is connected the startup electromagnetically operated valve on the gasoline engine, gasoline engine starting.After the gasoline engine starting success, generator output voltage is powered to testing circuit through AC1, AC2, generator voltage is sampled through potentiometer P1, send into A/D converter U1, be input to single-chip microcomputer U4 after the U1 conversion, the output frequency of generator detects from 14 pin that P32 sends into single-chip microcomputer U4 through operational amplifier N3C shaping.Current potential on single-chip microcomputer U4 behind the city power recovery 30 (CP26) pin becomes high level from low level; confirm through judging; 19 (P37) pin of single-chip microcomputer U4 and 18 (P36) pin are that

control output end

10 and 8 becomes low level from high level; control gasoline engine respectively and shut down controller and carburetor electromagnetic valve controller; make the Ignition Coils of Gasoline Engines on the gasoline unit stop igniting; connect the carburetor electromagnetic valve of gasoline engine simultaneously and close oil supply system; make gasoline engine very fast out of service; generating set is shut down, generation outage.After generating set was out of service, testing circuit entered the civil power detected state again, prepared at any time to start next time.

Claims

1; a kind of gasoline engine generator group self-starting device; it is characterized in that including civil power input socket (X1); civil power and generator accessory power outlet (X2); relay (J1); air switch (QF) and civil power and generator testing circuit (JC); the Chang Kaiduan of an input (3) of civil power input socket (X1) and the make-and-break contact (J1-1) of relay (J1); one end of relay coil winding connects; the other end of another input (2) of civil power input socket (X1) and relay (J1) coil windings; one end of generating set (F) power supply output; the end that connects altogether of an output (2) of civil power and generator accessory power outlet (X2) connects; the normal-closed end of the make-and-break contact (J1-1) of relay (J1) is connected with the other end of generating set (F) power supply output; the change over contact of the make-and-break contact (J1-1) of relay (J1) is connected with an end of air switch (QF); the other end of air switch (QF) is connected with another output (3) of civil power and generator accessory power outlet (X2); detection signal input (the AC1 of civil power and generator testing circuit (JC); AC2; 7) be connected the control output end (8 of testing circuit (JC) respectively with city's signal of telecommunication with the generating set output; 9; 10) respectively with generating set in the carburetor electromagnetic valve controller; the gasoline engine starting controller is shut down the controller input with gasoline engine and is connected.

2; by the described gasoline engine generator group of claim 1 self-starting device; it is characterized in that described civil power and generator testing circuit (JC) are by single-chip microcomputer (U4); A/D converter (U1); operational amplifier (N3C); rectifier bridge (B1); diode (V2; V6; V8; V9); resistance (R7; R10; R15-R17; R20; R21); potentiometer (P1; P2); electric capacity (C3; C4; C8; C10; C11); crystal oscillator (G1) is formed; 1 of detection signal input rectifier bridge; 3 pin (AC1; AC2) be connected with the generating set output; the positive pole of diode V9 (7) is connected with city's signal of telecommunication, control output end (8; 9; 10) 18 of single-chip microcomputer (U4); 17; 19 pin respectively with generating set in carburetor electromagnetic valve controller input; gasoline engine starting controller input is shut down the controller input with gasoline engine and is connected.