CN108498976A - A kind of nacelle engine automatic fire extinguisher - Google Patents
A kind of nacelle engine automatic fire extinguisher Download PDFInfo
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- CN108498976A CN108498976A CN201710601719.4A CN201710601719A CN108498976A CN 108498976 A CN108498976 A CN 108498976A CN 201710601719 A CN201710601719 A CN 201710601719A CN 108498976 A CN108498976 A CN 108498976A
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/08—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in aircraft
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/07—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles
- A62C3/10—Fire prevention, containment or extinguishing specially adapted for particular objects or places in vehicles, e.g. in road vehicles in ships
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/04—Control of fire-fighting equipment with electrically-controlled release
Abstract
The invention discloses a kind of nacelle engine automatic fire extinguishers, belong to safe electronic technical field, solve the problems, such as that conventional motor vehicle is put out a fire not in time under Fires Occurred.Include mainly voltage driven type fire extinguisher, power module, temperature sensor module, central control module and the igniting drive module for driving the fire extinguisher.This circuit design is simple and ingenious, is resistant to 400mA safe currents, antistatic interference, and performance is stablized.When having well solved the generation of motor vehicle fire, the problem of fire extinguishing not in time；Manufacturing cost is low, and economical, societal benefits clearly, can be widely applied to the industry fields such as automobile, steamer.
Description
Technical field
The invention belongs to safe electronic technical fields, specifically, more particularly to a kind of nacelle engine automatic fire extinguisher.
Background technology
The fire such as automobile, steamer are one of accidents more heavy in traffic accident.Not only endanger the life peace of people
Entirely, while it will also result in serious economic loss.The locomotive event on fire in China occurs again and again, and locomotive rear 90% vehicle on fire
All burn the consequence scrapped, or even cause car crash.Vehicle caused by removing the collision of the locomotives such as vehicle, steamer, rollover rises
Fiery reason, bad locomotive state itself is also the major reason for inducing vehicle fire, such as：Engine washing is not clean, starts
Machine overheat etc., can all cause serious fire incident.
Traditional locomotive emergency set on fire is only simply equipped with a certain number of fire extinguishers, but occurs in fire
When, people mostly be in flurried state, reaction not in time, source on fire cannot be put out in Best Times, cause it is serious after
Fruit.The outmoded failure of equipment simultaneously, the put position of equipment concealment, and generally fire-extinguishing apparatus is all placed near driver's cabin,
Clearly not comprehensive enough for the prevention on fire of locomotive engine, driver can not also discover the temperature of enging cabin and shape on fire
Condition can not be retrieved once fire occurs, especially the passenger stocks such as bus of rear engine and passenger traffic, shipping steamer
Deng.
Invention content
The purpose of the present invention is in view of the deficienciess of the prior art, providing that a kind of circuit design is succinct, fire extinguishing starts
A kind of nacelle engine automatic fire extinguisher that speed is fast, performance is stable, manufacturing cost is low.
The present invention is achieved by the following technical solutions：
A kind of nacelle engine automatic fire extinguisher, including electronic control unit and controlled by the electronic control unit
Voltage driven type fire extinguisher；
The electronic control unit includes power module, temperature sensor module, central control module and for driving
The igniting drive module of the voltage driven type fire extinguisher；
Power module stabilized power source required when providing work for modules；The temperature sensor module induction
Ambient temperature, and electric signal transmission is converted into the central control module；
The central control module sends out action for handling the external data got to the igniting drive module
Instruction provides operative driver voltages from the igniting drive module to the voltage driven type fire extinguisher.
Preferably, the temperature sensor module is 1-4 infrared temperature sensor.Infrared temperature sensor, which has, to be measured
The advantages that range is wide, and long lifespan, dependable performance, reaction are exceedingly fast.
Preferably, the electronic control unit is additionally provided with manual switch, for artificially starting fire extinguisher.
Preferably, the power module includes power protecting circuit unit and power-switching circuit unit.
Preferably, the power protecting circuit unit includes fuse F1, inductance L1, voltage-stabiliser tube D1, electrolytic capacitor C1, hair
The positive terminal conducting wire of optical diode D2 and resistance R1, the one end the fuse F1 and battery connects, the other end and the inductance
One end of L1 is connected in series with, the other end of the inductance L1 respectively with the cathode terminal of voltage-stabiliser tube D1, electrolytic capacitor C1 positive terminal,
The input terminal conducting wire of one end of resistance R1 and the power-switching circuit unit 7 connect, the resistance R1 other ends with it is described
The anode lead of light emitting diode D2 connects, the anode of the rectifier diode D1, the cathode terminal of electrolytic capacitor C1, luminous two
The cathode of pole pipe D2 is grounded.The circuit design is simple, circuit performance is stablized, and can prevent high pressure spike, sustained overvoltage, battery
Reversely and caused by electric current consumes excessively damage.
Preferably, the power-switching circuit unit includes 12V voltage stabilizing chip U3,5V voltage stabilizing chips U4, the 12V voltage stabilizings
2 pins of chip U3 are connect with the wire of output terminal of the power protecting circuit unit, 2 pin and ground terminal series capacitance
On the one hand both ends parallel electrolytic capacitance C3, the electrolytic capacitor C2 of C4, the capacitance C4,7 pins are protected through resistance and the power supply
The wire of output terminal of protection circuit unit connects, another aspect resistance grounded；Its 4 pin, 8 pins ground connection；Its 3 pipe foot meridian capacitor
C6 is connect with its 1 pin conducting wire, and 1 pin is also connect with one end conducting wire of the cathode terminal of rectifier diode D3, inductance L2, described
The anode tap of rectifier diode D3 is grounded, on the one hand the other end of the inductance L2 is led with 6 pins of the 12V voltage stabilizing chips U3
Line connects, on the other hand output+12V voltages, output after electrolytic capacitor C5, electrolytic capacitor C10, electrolytic capacitor C11 filtering
+ 12V voltages be transmitted to 1 pin of the 5V voltage stabilizing chips U4, the 2 pins ground connection of the 5V voltage stabilizing chips, 1 pin and 2
Pin exports 5V voltages after being connected in series with capacitance C1,3 pipe foot meridian capacitor C8, electrolytic capacitor C9.The circuit design circuit ripple
It is small, can effectively prevent occur between each device interference, electric current deficiency problem, entire circuit design performance stabilization.Simple electricity
Road design determines its moulding compact, occupies little space, and significantly saves component usage quantity and use type, greatly
Amplitude reduction produces and uses cost, and economical, societal benefits are clearly.
Preferably, 12V voltage stabilizing chips model LM2676S-12,5V voltage stabilizing chip the model LM2940.
Preferably, central control chip used by the central control module 4 is STM8AF6266 microcontrollers, the point
Driving chip used by fiery drive module 5 is MC33797 standard four-way driving chips.STM8AF6266 microcontrollers are from band signal
Processing function, diagnosis and detection function, the information processing function be mainly responsible for the acquisition to forward temperature sensor institute measured data with
Processing, diagnosis is mainly responsible for the detection of temperature sensor information with detection function, and is diagnosed to itself, it is ensured that system safety
Reliably run.
Preferably, 1 pin of the STM8AF6266 microcontrollers U1 is through resistance R11 access+5V power supplys, and through capacitance C13
It is filtered；Its 2 pin is connected in series with the both ends crystal oscillator JZ, the crystal oscillator JZ with its 3 pin and is connect respectively through capacitance C14, capacitance C15
Ground；Its 4 pin is grounded；Its 5 pin is grounded through electrolytic capacitor C16；Its 6 pin, 7 pin access+5V voltages；The access of its 9 pin+
5V voltages, and through electrolytic capacitor C17, capacitance C18 ground connection；Its 17 pin is with the MC33797 standards four-way driving chip U5's
30 pin conducting wires connect；Its 18 pin is connect with the 13 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 19 pipe
Foot is connect with the 20 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 20 pin and the MC33797 standards four
The 29 pin conducting wires connection of logical driving chip U5；4 pins of its 22 pin and the MC33797 standards four-way driving chip U5 are led
Line connects；Its 23 pin is connect with the 3 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 24 pin with it is described
The 9 pin conducting wires of MC33797 standard four-way driving chips U5 connect；Its 26 pin is the burned mouth of program, 27 pins, 28 pipes
Foot, 30 pins, 31 pins are temperature sensor interface；Its 32 pin is on the one hand through resistance R12 access+5V voltages, another party
Face is grounded through reset switch SA；1 pin of the MC33797 standards four-way driving chip U5 and 5 pins form output port one,
Its 1 pin is connected with 2 pins, and is grounded through capacitance C19, the 5 pipe foot meridian capacitor C20 ground connection；The MC33797 standards four-way
6 pins, 7 pins, 11 pins, 27 pins, 26 pins, the 22 pins access+12V voltages of driving chip U5；The MC33797
8 pins of standard four-way driving chip U5,24 pins, 25 pins ground connection；Its 10 pin access+5V voltage；The MC33797 marks
12 pins of quasi- four-way driving chip U5 and 16 pins form output port two, 12 pipe foot meridian capacitor C24 ground connection, 16 pins
It is grounded through capacitance C23,16 pin is also connect with its 15 pin conducting wire, and 14 pins are grounded through resistance R2；The MC33797
32 pins of standard four-way driving chip U5 form output port three with its 28 pin, and 32 pins connect with its 31 pin conducting wire
It connects, and is grounded through capacitance C21,28 pipe foot meridian capacitor C22 ground connection, 23 pins are grounded through resistance R3；The MC33797 standards
21 pins of four-way driving chip U5 form output port four, 21 pipe foot meridian capacitor C26 ground connection, 17 pins with its 17 pin
It is connected with its 18 pin conducting wire, and is grounded through capacitance C25,19 pins is grounded through resistance R4；The output port one, output end
Mouth two, output port three, output port four are used to be electrically connected with the voltage driven type fire extinguisher, are the voltage driven type
Fire extinguisher provides driving voltage.This circuit design is succinct and performance is stablized, and fire extinguisher startup speed is fast, this circuit design is used
Component be common component, and be greatly lowered usage quantity and use type, production and application cost is greatly lowered,
Economical, societal benefits are clearly.
Compared with prior art, the beneficial effects of the invention are as follows：
1. circuit design of the present invention is simple and ingenious, performance is stablized, and the variation of energy moment temperature sensor is simultaneously accurate quick
Start fire extinguisher, when having well solved the generation of motor vehicle fire, the problem of fire extinguishing not in time；
2. the present invention damages caused by can preventing high pressure spike, sustained overvoltage, reverse battery and electric current from consuming excessively；Electricity
Road ripple is small, can effectively prevent occur between each device interference, electric current deficiency problem, be resistant to 4000mA safe currents, it is anti-quiet
Electrical interference；
3. Simple circuit design of the present invention determines its moulding compact, occupy little space, to requirements of installation space
It is very low；
4. component used by circuit design of the present invention is the common component in market, and significantly saving component makes
With quantity and type is used, production and application cost is greatly lowered, economical, societal benefits clearly, can be widely applied to vapour
The industry fields such as vehicle, steamer；
Description of the drawings
Fig. 1 is present system block diagram；
Fig. 2 is power protecting circuit element circuit schematic diagram of the present invention；
Fig. 3 is power-switching circuit element circuit schematic diagram of the present invention；
Fig. 4 is central control module circuit diagram of the present invention；
Fig. 5 is present invention igniting drive module circuit diagram.
In figure：1. voltage driven type fire extinguisher；2. power module；3. temperature sensor module；4. central control module；5.
Igniting drive module；6. power protecting circuit unit；7. power-switching circuit unit；8. manual switch.
Specific implementation mode
The following further describes the present invention with reference to the drawings：
A kind of nacelle engine automatic fire extinguisher, including electronic control unit and controlled by the electronic control unit
Voltage driven type fire extinguisher 1；
The electronic control unit includes power module 2, temperature sensor module 3, central control module 4 and for driving
Move the igniting drive module 5 of the voltage driven type fire extinguisher 1；
The stabilized power source required when providing work for modules of the power module 2；The temperature sensor module 3 is felt
Ambient temperature is answered, and is converted into electric signal transmission to the central control module 4；
The central control module 4 is sent out to the igniting drive module 5 dynamic for handling the external data got
It instructs, operative driver voltages is provided from the igniting drive module 5 to the voltage driven type fire extinguisher 1.
Preferably, the temperature sensor module 3 is 1-4 infrared temperature sensor.
Preferably, the electronic control unit is additionally provided with manual switch 8, for artificially starting fire extinguisher.
Preferably, the power module 2 includes power protecting circuit unit 6 and power-switching circuit unit 7.
Preferably, the power protecting circuit unit 6 include fuse F1, inductance L1, voltage-stabiliser tube D1, electrolytic capacitor C1,
The positive terminal conducting wire of light emitting diode D2 and resistance R1, the one end the fuse F1 and battery connects, the other end and the electricity
One end of sense L1 is connected in series with, the other end of the inductance L1 respectively with the cathode terminal of voltage-stabiliser tube D1, the anode of electrolytic capacitor C1
The input terminal conducting wire connection at end, one end of resistance R1 and the power-switching circuit unit 7, the resistance R1 other ends and institute
The anode lead connection of light emitting diode D2 is stated, the anode of the rectifier diode D1, shines at the cathode terminal of electrolytic capacitor C1
The cathode of diode D2 is grounded.
Preferably, the power-switching circuit unit 7 includes 12V voltage stabilizing chip U3,5V voltage stabilizing chips U4, the 12V steady
2 pins of pressure chip U3 are connect with the wire of output terminal of the power protecting circuit unit, 2 pin and ground terminal series electrical
Hold C4, both ends parallel electrolytic capacitance C3, the electrolytic capacitor C2 of the capacitance C4,7 pins are on the one hand through resistance and the power supply
Protect the wire of output terminal connection of circuit unit, another aspect resistance grounded；Its 4 pin, 8 pins ground connection；Its 3 pin is through electricity
Hold C6 to connect with its 1 pin conducting wire, 1 pin is also connect with one end conducting wire of the cathode terminal of rectifier diode D3, inductance L2, institute
State the anode tap ground connection of rectifier diode D3,6 pins of the other end one side and the 12V voltage stabilizing chips U3 of the inductance L2
Conducting wire connects, and on the other hand output+12V the voltages after electrolytic capacitor C5, electrolytic capacitor C10, electrolytic capacitor C11 filtering, defeated
+ 12V the voltages gone out are transmitted to 1 pin of the 5V voltage stabilizing chips U4, the 2 pins ground connection of the 5V voltage stabilizing chips, 1 pin with
2 pins export 5V voltages after being connected in series with capacitance C1,3 pipe foot meridian capacitor C8, electrolytic capacitor C9.
Preferably, 12V voltage stabilizing chips model LM2676S-12,5V voltage stabilizing chip the model LM2940.
Preferably, central control chip used by the central control module 4 is STM8AF6266 microcontrollers, the point
Driving chip used by fiery drive module 5 is MC33797 standard four-way driving chips.
Preferably, 1 pin of the STM8AF6266 microcontrollers U1 is through resistance R11 access+5V power supplys, and through capacitance C13
It is filtered；Its 2 pin is connected in series with the both ends crystal oscillator JZ, the crystal oscillator JZ with its 3 pin and is connect respectively through capacitance C14, capacitance C15
Ground；Its 4 pin is grounded；Its 5 pin is grounded through electrolytic capacitor C16；Its 6 pin, 7 pin access+5V voltages；The access of its 9 pin+
5V voltages, and through electrolytic capacitor C17, capacitance C18 ground connection；Its 17 pin is with the MC33797 standards four-way driving chip U5's
30 pin conducting wires connect；Its 18 pin is connect with the 13 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 19 pipe
Foot is connect with the 20 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 20 pin and the MC33797 standards four
The 29 pin conducting wires connection of logical driving chip U5；4 pins of its 22 pin and the MC33797 standards four-way driving chip U5 are led
Line connects；Its 23 pin is connect with the 3 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 24 pin with it is described
The 9 pin conducting wires of MC33797 standard four-way driving chips U5 connect；Its 26 pin is the burned mouth of program, 27 pins, 28 pipes
Foot, 30 pins, 31 pins are temperature sensor interface；Its 32 pin is on the one hand through resistance R12 access+5V voltages, another party
Face is grounded through reset switch SA；1 pin of the MC33797 standards four-way driving chip U5 and 5 pins form output port one,
Its 1 pin is connected with 2 pins, and is grounded through capacitance C19, the 5 pipe foot meridian capacitor C20 ground connection；The MC33797 standards four-way
6 pins, 7 pins, 11 pins, 27 pins, 26 pins, the 22 pins access+12V voltages of driving chip U5；The MC33797
8 pins of standard four-way driving chip U5,24 pins, 25 pins ground connection；Its 10 pin access+5V voltage；The MC33797 marks
12 pins of quasi- four-way driving chip U5 and 16 pins form output port two, 12 pipe foot meridian capacitor C24 ground connection, 16 pins
It is grounded through capacitance C23,16 pin is also connect with its 15 pin conducting wire, and 14 pins are grounded through resistance R2；The MC33797
32 pins of standard four-way driving chip U5 form output port three with its 28 pin, and 32 pins connect with its 31 pin conducting wire
It connects, and is grounded through capacitance C21,28 pipe foot meridian capacitor C22 ground connection, 23 pins are grounded through resistance R3；The MC33797 standards
21 pins of four-way driving chip U5 form output port four, 21 pipe foot meridian capacitor C26 ground connection, 17 pins with its 17 pin
It is connected with its 18 pin conducting wire, and is grounded through capacitance C25,19 pins is grounded through resistance R4；The output port one, output end
Mouth two, output port three, output port four are used to be electrically connected with the voltage driven type fire extinguisher, are the voltage driven type
Fire extinguisher provides driving voltage.
In conjunction with Figure of description Fig. 1, the present invention includes electronic control unit and is controlled by the electronic control unit
Voltage driven type fire extinguisher 1；The electronic control unit includes power module 2, temperature sensor module 3, central control module 4
And the igniting drive module 5 for driving the voltage driven type fire extinguisher 1；The power module 2 provides for modules
Required stabilized power source when work；The temperature sensor module 3 incudes ambient temperature, and is converted into electric signal biography
Transport to the central control module 4；The central control module 4 is for handling the external data got, and to the igniting
Drive module 5 sends out action command, and task driven is provided from the igniting drive module 5 to the voltage driven type fire extinguisher 1
Voltage.
Figure of description Fig. 2 is power protecting circuit unit of the present invention, in conjunction with the schematic diagram it is found that the present invention is using passive
Protect network structure, this network structure design that can prevent high pressure spike, sustained overvoltage, reverse battery and electric current from consuming excessively
Caused by damage, in the circuit design, if load current is more than 1A's, and certain time, fuse F1 will dissolve.
Voltage-stabiliser tube D1 is combined with fuse F1 prevents reverse battery connection from damaging, and high current flows through the voltage-stabiliser tube D1 of forward bias simultaneously
Blowout F1.Inductor L1 increases the resistance of very little, to limit peak value fault current and input the conversion ratio of transient state,
To help electrolytic capacitor C1 to realize clamper when there are spike.
Figure of description Fig. 3 is power-switching circuit unit of the present invention, in conjunction with the schematic diagram it is found that circuit of the present invention has
Certain filter action can prevent the electric current of alternating component from passing through, while filter out the ripple signal generated when work.Due to needing
Offer+5V power supplys, and the linearity of the voltage stabilizing of LM2940 is very good, has the advantages that ripple is small, circuit structure is simple, so choosing
Individually it is powered with LM2940, can effectively prevent interfering between each device and the problem of electric current deficiency, is made
The system of obtaining can steadily work.
Figure of description Fig. 4 is central control module circuit diagram of the present invention, and the present invention uses STM8AF6266 monolithics
Machine builds whole system for core component, inside there is the 32KEPROM, 2K memories to have 7 road A/D, and have SCI, SPI, IIC
With the bus structures such as CAN.Also there is hardware multiplier, four timers interrupt priority level can be arranged, up to inside its its
The arithmetic speed of 10MIPS, chip are simple and efficient multiple functional.
Figure of description Fig. 5 is present invention igniting drive module circuit diagram, which uses MOTOROLA companies
MC33797, the four-way drives of driving chip working mode selection standard, MC33797 chips and STM8AF6266 processors
Between communication mainly realize that STM8AF6266 processors pass through principal and subordinate's chip by Serial Peripheral Interface SPI
Between SPI communication come realize to the driving chip carry out correctly control and diagnose.In the present system, STM8AF6266 microcontrollers
As central processing unit, there are one hardware SPI interfaces for microcontroller tool itself.STM8AF6266 microcontrollers as main device,
MC33797 driving chips are used as from device.
Temperature sensor can perceive the temperature of environment, and be converted into available signal output, temperature sensor energy
Abnormal conditions in detection motor car engine cabin well, so as to quickly and accurately make countermeasure.The present invention adopts
It is infrared temperature sensor with temperature sensor, has many advantages, such as that wide measurement range, long lifespan, dependable performance, reaction are exceedingly fast.When
One or more infrared temperature sensors detect to be enclosed when temperature reaches the temperature threshold of setting or temperature in engine nacelle
Sensor detects that temperature is in instantaneous variation exception in cabin, and meeting output voltage signal is sent into central control module, trigger point
Fiery drive module, Ignition chip are driven using standard four, reliable and stable driving voltage are provided for the sprinkling of fire extinguisher, to reach
To the state of self-extinguishing.Certainly, the present invention can also be operated with manual switches 9 and manually perform startup fire extinguisher.The present invention's goes out
Firearm is voltage driven type fire extinguisher, has been that the open prior art is awarded such as Chinese patent Authorization Notice No. CN102526918B
It weighs December 18 2013 day for announcing, patent name is the technical side of low-voltage-driven device for opening ordinary hand-pressing fire extinguisher
Case.Circuit designs of the present invention of the present invention are simple and ingenious, and performance is stablized, and the variation of energy moment temperature sensor is simultaneously accurate quick
Start fire extinguisher, when having well solved the generation of motor vehicle fire, the problem of fire extinguishing not in time；The present invention can prevent high pointing
Peak, sustained overvoltage, reverse battery and electric current damage caused by consuming excessively；Circuit ripple is small, can effectively prevent between each device
Occur interference, electric current deficiency problem；Simple circuit design of the present invention determines its moulding compact, occupies little space,
It is very low to requirements of installation space；Component used by circuit design of the present invention is the common component in market, and is significantly saved
About component usage quantity and use type, production and application cost is greatly lowered, economical, societal benefits clearly, can be wide
It is general to be applied to the industry fields such as automobile, steamer.
In conclusion only presently preferred embodiments of the present invention, is not used for limiting the scope of implementation of the present invention, it is all according to
The equivalent changes and modifications carried out by shape, construction, feature and spirit described in scope of the invention as claimed should all be included in this
In the right of invention.
Claims (9)
1. a kind of nacelle engine automatic fire extinguisher, it is characterised in that：Including electronic control unit and by the electronic control
The voltage driven type fire extinguisher of device control；
The electronic control unit includes power module, temperature sensor module, central control module and described for driving
The igniting drive module of voltage driven type fire extinguisher；
Power module stabilized power source required when providing work for modules；The temperature sensor module induction is extraneous
Environment temperature, and electric signal transmission is converted into the central control module；
The central control module sends out action to the igniting drive module and refers to for handling the external data got
It enables, operative driver voltages is provided from the igniting drive module to the voltage driven type fire extinguisher.
2. a kind of nacelle engine automatic fire extinguisher according to claim 1, it is characterised in that：The temperature sensor mould
Block is 1-4 infrared temperature sensor.
3. a kind of nacelle engine automatic fire extinguisher according to claim 1, it is characterised in that：The electronic control unit
It is additionally provided with manual switch, for artificially starting fire extinguisher.
4. a kind of nacelle engine automatic fire extinguisher according to claim 1, it is characterised in that：The power module 2 wraps
Include power protecting circuit unit and power-switching circuit unit.
5. a kind of nacelle engine automatic fire extinguisher according to claim 4, it is characterised in that：The power protecting circuit
Unit includes fuse F1, inductance L1, voltage-stabiliser tube D1, electrolytic capacitor C1, light emitting diode D2 and resistance R1, the fuse
The positive terminal conducting wire of the one end F1 and battery connects, and one end of the other end and the inductance L1 is connected in series with, and the inductance L1's is another
Electricity is converted with the cathode terminal of voltage-stabiliser tube D1, the positive terminal of electrolytic capacitor C1, one end of resistance R1 and the power supply in one end respectively
The input terminal conducting wire of road unit 7 connects, and the resistance R1 other ends are connect with the anode lead of the light emitting diode D2, institute
State the anode of rectifier diode D1, the cathode terminal of electrolytic capacitor C1, light emitting diode D2 cathode be grounded.
6. a kind of nacelle engine automatic fire extinguisher according to claim 4, it is characterised in that：The power-switching circuit
Unit includes 12V voltage stabilizing chip U3,5V voltage stabilizing chips U4,2 pins and the power protecting circuit of the 12V voltage stabilizing chips U3
The wire of output terminal of unit connects, the both ends parallel electrolytic capacitance of 2 pin and ground terminal series capacitance C4, the capacitance C4
C3, electrolytic capacitor C2, on the one hand 7 pins are connect through resistance with the wire of output terminal of the power protecting circuit unit, another
Aspect resistance grounded；Its 4 pin, 8 pins ground connection；Its 3 pipe foot meridian capacitor C6 is connect with its 1 pin conducting wire, 1 pin also with
One end conducting wire connection of the cathode terminal, inductance L2 of rectifier diode D3, the anode tap ground connection of the rectifier diode D3, the electricity
On the one hand the other end for feeling L2 is connect with the 6 pin conducting wires of the 12V voltage stabilizing chips U3, on the other hand through electrolytic capacitor C5, electricity
Output+12V voltages after solution capacitance C10, electrolytic capacitor C11 the filtering ,+12V voltages of output are transmitted to the 5V voltage stabilizing chips
1 pin of U4, the 2 pins ground connection of the 5V voltage stabilizing chips, 1 pin and 2 pins are connected in series with capacitance C1, and 3 pins are through electricity
5V voltages are exported after holding C8, electrolytic capacitor C9.
7. a kind of nacelle engine automatic fire extinguisher according to claim 6, it is characterised in that：The 12V voltage stabilizing chips
Model LM2676S-12,5V voltage stabilizing chip model LM2940.
8. a kind of nacelle engine automatic fire extinguisher according to claim 1, it is characterised in that：The central control module
Used central control chip is STM8AF6266 microcontrollers, and driving chip used by the igniting drive module is
MC33797 standard four-way driving chips.
9. a kind of nacelle engine automatic fire extinguisher according to claim 8, it is characterised in that：The STM8AF6266 is mono-
1 pin of piece machine U1 is filtered through resistance R11 access+5V power supplys through capacitance C13；Its 2 pin is connected company with its 3 pin
The both ends crystal oscillator JZ, the crystal oscillator JZ are connect respectively through capacitance C14, capacitance C15 ground connection；Its 4 pin is grounded；Its 5 pin is through electrolysis electricity
Hold C16 ground connection；Its 6 pin, 7 pin access+5V voltages；Its 9 pin access+5V voltage, and through electrolytic capacitor C17, capacitance C18
Ground connection；Its 17 pin is connect with the 30 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 18 pin with it is described
The 13 pin conducting wires of MC33797 standard four-way driving chips U5 connect；Its 19 pin drives core with the MC33797 standards four-way
The 20 pin conducting wires of piece U5 connect；Its 20 pin is connect with the 29 pin conducting wires of the MC33797 standards four-way driving chip U5；
Its 22 pin is connect with the 4 pin conducting wires of the MC33797 standards four-way driving chip U5；Its 23 pin and the MC33797
The 3 pin conducting wires of standard four-way driving chip U5 connect；Its 24 pin and the 9 of the MC33797 standards four-way driving chip U5
Pin conducting wire connects；Its 26 pin is the burned mouth of program, and 27 pins, 28 pins, 30 pins, 31 pins are temperature sensor
Interface；On the other hand its 32 pin is grounded on the one hand through resistance R12 access+5V voltages through reset switch SA；The MC33797
1 pin of standard four-way driving chip U5 and 5 pins form output port one, and 1 pin is connected with 2 pins, and through capacitance C19
Ground connection, the 5 pipe foot meridian capacitor C20 ground connection；6 pins, 7 pins, 11 pipes of the MC33797 standards four-way driving chip U5
Foot, 27 pins, 26 pins, 22 pins access+12V voltages；8 pins of the MC33797 standards four-way driving chip U5,24
Pin, 25 pins ground connection；Its 10 pin access+5V voltage；12 pins and 16 of the MC33797 standards four-way driving chip U5
Pin forms output port two, 12 pipe foot meridian capacitor C24 ground connection, 16 pipe foot meridian capacitor C23 ground connection, 16 pin also with
Its 15 pin conducting wire connects, and 14 pins are grounded through resistance R2；32 pins of the MC33797 standards four-way driving chip U5 with
Its 28 pin forms output port three, and 32 pins are connect with its 31 pin conducting wire, and is grounded through capacitance C21,28 pins warp
Capacitance C22 ground connection, 23 pins are grounded through resistance R3；21 pins of the MC33797 standards four-way driving chip U5 with its 17
Pin forms output port four, 21 pipe foot meridian capacitor C26 ground connection, and 17 pins are connected with its 18 pin conducting wire, and through capacitance
C25 is grounded, and 19 pins are grounded through resistance R4；The output port one, output port two, output port three, output port four
It is used to be electrically connected with the voltage driven type fire extinguisher, driving voltage is provided for the voltage driven type fire extinguisher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601719.4A CN108498976A (en) | 2017-07-21 | 2017-07-21 | A kind of nacelle engine automatic fire extinguisher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710601719.4A CN108498976A (en) | 2017-07-21 | 2017-07-21 | A kind of nacelle engine automatic fire extinguisher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108498976A true CN108498976A (en) | 2018-09-07 |
Family
ID=63373772
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710601719.4A Pending CN108498976A (en) | 2017-07-21 | 2017-07-21 | A kind of nacelle engine automatic fire extinguisher |
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Application publication date: 20180907 |