CN110386007A - A kind of method of electric car and electric bicycle charge and discharge spontaneous combustion protective device and spontaneous combustion protective device processing digital signal - Google Patents
A kind of method of electric car and electric bicycle charge and discharge spontaneous combustion protective device and spontaneous combustion protective device processing digital signal Download PDFInfo
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- CN110386007A CN110386007A CN201910664884.3A CN201910664884A CN110386007A CN 110386007 A CN110386007 A CN 110386007A CN 201910664884 A CN201910664884 A CN 201910664884A CN 110386007 A CN110386007 A CN 110386007A
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/182—Level alarms, e.g. alarms responsive to variables exceeding a threshold
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
Abstract
The invention discloses a kind of electric car and electric bicycle charge and discharge spontaneous combustion protective devices, wherein spark takes out circuit and the spark signal generated in battery charging process is transmitted in spark signal processing circuit, spark signal is carried out analog-to-digital conversion by spark signal processing circuit, and by the digital data transmission after conversion into central processing unit, the temperature signal of battery local environment is carried out analog-to-digital conversion by Temperature Treatment circuit, and by the digital data transmission after conversion into central processing unit, central processing unit is received and is transmitted in output circuit after handling digital signal.The present invention is not only monitored rechargeable battery local environment, also the spark signal generated in battery charging process is monitored simultaneously, it can monitor and make corresponding alarm in real time to battery in battery charging process or directly terminate the charging to battery, to improve the service life of battery.
Description
Technical field
The present invention relates to electric car power supply equipment technical fields more particularly to a kind of electric car and electric bicycle to fill
The method of spontaneous combustion protective device of discharging and spontaneous combustion protective device processing digital signal.
Background technique
Electric car and electric bicycle suffer from an identical power source, that is, rechargable power supplies, and exactly because
For this identical power source, identical insecurity factor also is brought to them.
These insecurity factors all be unable to do without this critical component of battery.Electric car and electric bicycle are all by right
Energy-storage battery charging obtains the energy, and many fire occurrence causes are that various poor contacts and electricity are produced in charge and discharge process
Inside pond situations such as sparking.In such cases, it may appear that repeatedly there is the spark of high current, these sparks can make local generation
Thermal energy reach the ignition energy of electric vehicle plastic part, to will result in the spontaneous combustion of electric vehicle plastic part, and then become fire.This
Via NFA department, repeatedly opinion is fixed for a mechanism.
Summary of the invention
Goal of the invention: during the charging process for electric car and electric bicycle, there are in poor contact and battery
The problem of unsafe conditions such as portion's sparking, the invention proposes a kind of electric car and electric bicycle charge and discharge spontaneous combustion protection dresses
Set the method with spontaneous combustion protective device processing digital signal.
Technical solution: to achieve the purpose of the present invention, the technical scheme adopted by the invention is that:
A kind of electric car and electric bicycle charge and discharge spontaneous combustion protective device, the protective device include that spark takes out
Circuit, spark signal processing circuit, central processing unit, Temperature Treatment circuit and output circuit, the spark takes out circuit will be electric
The spark signal generated in electrical automobile and battery of electric bicycle charging process is transmitted in spark signal processing circuit, the fire
Spark signal is carried out analog-to-digital conversion by flower signal processing circuit, and by the digital data transmission after conversion into central processing unit,
The temperature signal that the Temperature Treatment circuit detects electric car and battery of electric bicycle local environment carries out modulus and turns
It changes, and by the digital data transmission after conversion into central processing unit, the central processing unit receives spark signal processing circuit
The digital signal of transmission and the digital signal of Temperature Treatment circuit transmission, and be transmitted to after handling the digital signal defeated
Out in circuit.
Further speaking, it includes switch S1, wideband current transformer CT, first resistor R1, the first electricity that the spark, which takes out circuit,
The both ends for holding the original grade coil of C1 and first diode D1, the switch S1 and wideband current transformer CT are electrically connected electric car
And the charging circuit of battery of electric bicycle, one end of the subgrade coil of the wideband current transformer CT are electrically connected first resistor R1
Input terminal, the input terminal of first capacitor C1 and the anode of first diode D1, the subgrade coil of the wideband current transformer CT
The other end is electrically connected the output end of first resistor R1 and the output end of first capacitor C1, the secondary grade line of the wideband current transformer CT
The output end of the other end of circle, the output end of first resistor R1 and first capacitor C1 is grounded, the yin of the first diode D1
The input terminal of pole electric connection spark signal processing circuit.
It further speaking, include wideband current transformer and analog to digital conversion circuit in the spark signal processing circuit, it is described
Wideband current transformer receives spark and takes out the spark signal that circuit transmission is come, and the spark signal is converted to anti-interference detection list
To voltage form, while the spark signal of the anti-interference detection unidirectional voltage form being transmitted in analog to digital conversion circuit and is carried out
Analog-to-digital conversion, analog-digital conversion circuit as described is by the digital data transmission after conversion into central processing unit.
Further speaking, the Temperature Treatment circuit includes temperature inductor and analog to digital conversion circuit, the temperature sense
Device experiences ambient temperature at electric car and battery of electric bicycle, and the temperature signal is transmitted to modulus
Analog-to-digital conversion is carried out in conversion circuit, analog-digital conversion circuit as described is by the digital data transmission after conversion into central processing unit.
Further speaking, the central processing unit is one of all kinds of digital signal processing chips, electronic for judging
Whether automobile and battery of electric bicycle can occur spontaneous combustion during the charging process.
Further speaking, the output circuit includes warning repairing module, audible and visible alarm module and cuts off charge-discharge modules,
The warning repairing module, audible and visible alarm module and cutting charge-discharge modules are electrically connected central processing unit by different port
Output end, and the warning repairing module, audible and visible alarm module and cutting charge-discharge modules between there are timing in parallel passes
System.
Further speaking, the warning repairing module includes second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th
The input terminal electric connection of resistance R5, the second diode D2, third diode D3 and the first triode Q1, the second resistance R2
Output end, the output end of central processing unit are electrically connected the base stage of the first triode Q1, the collector of the first triode Q1
It is electrically connected the input terminal of 3rd resistor R3 and the input terminal of the 4th resistance R4, the output end of the 3rd resistor R3 and the 4th electricity
The output end of resistance R4 is electrically connected the anode of the second diode D2, audible and visible alarm module and cutting charge-discharge modules, and described the
The cathode of two diode D2 is electrically connected the anode of third diode D3, and the cathode of the third diode D3 is electrically connected the 5th
The input terminal of resistance R5, the emitter of the first triode Q1 and the output end of the 5th resistance R5 are grounded.
Further speaking, the audible and visible alarm module includes the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th
Resistance R9, the 4th diode D4, the 5th diode D5, the second triode Q2 and loudspeaker LS, the input of the 6th resistance R6
End is electrically connected the output end of central processing unit, output end is electrically connected the base stage of the second triode Q2, second triode
The collector of Q2 is electrically connected the input terminal of the 7th resistance R7 and the input terminal of the 8th resistance R8, the output of the 7th resistance R7
The output end of end and the 8th resistance R8 are electrically connected the anode, warning repairing module and cutting charge and discharge mould of the 4th diode D4
Block, the cathode of the 4th diode D4 are electrically connected the anode of the 5th diode D5 and the input terminal of loudspeaker LS, and described the
The cathode of five diode D5 is electrically connected the input terminal of the 9th resistance R9, and the output end of the loudspeaker LS is electrically connected the 9th electricity
The output end of R9 is hindered, the output end of the 9th resistance R9 and the emitter of the second triode Q2 are grounded.
Further speaking, the cutting charge-discharge modules include the tenth resistance R10, eleventh resistor R11, third transistor
It is electrical that the input terminal of Q3 and solid-state relay J, the tenth resistance R10 are electrically connected the output end of central processing unit, output end
The base stage of third transistor Q3 is connected, the collector of the third transistor Q3 is electrically connected the input terminal of eleventh resistor R11
The input terminal of solid-state relay J, police are electrically connected with the output end of the input terminal of solid-state relay J, the eleventh resistor R11
It accuses repairing module and acousto-optic alarm modules, the output end of the solid-state relay J and the emitter of third transistor Q3 is grounded.
A kind of method of spontaneous combustion protective device processing digital signal, the method specifically comprise the following steps:
Step S1: the counter inside the central processing unit transmits number to spark signal processing circuit within a preset time
The number of word signal is counted, and according to the number recorded within a preset time in the counter, obtains the spark signal
Processing circuit transmits the number of digital signal within a preset time；
Step S2: setting warning repairing value, warning value and interrupting value in the central processing unit, and the warning is repaired
The size of value, warning value and interrupting value is sequentially increased；
Step S3: it transmits the number of digital signal within a preset time according to the spark signal processing circuit, judges institute
It states number and alerts the relationship between repairing value and warning value, specifically:
When the number is less than warning repairing value, the warning repairing module, audible and visible alarm module and cutting charge and discharge
Module does not start；
When the number is not less than warning repairing value and is less than warning value, the warning repairing module will be according to centre
The signal enabling that device issues is managed, the audible and visible alarm module and cutting charge-discharge modules do not start；
When the number is not less than warning value, perform the next step rapid；
Step S4: according to the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission, judge the temperature
Relationship between the corresponding numerical values recited of digital signal and warning value and interrupting value of processing circuit transmission, specifically:
When the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission not less than warning value and is less than interruption
When value, the signal enabling that the audible and visible alarm module will be issued according to central processing unit, the warning repairing module and cutting are filled
Discharge module does not start；
When the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission is not less than interrupting value, the cutting
The signal enabling that charge-discharge modules will be issued according to central processing unit, the warning repairing module and acousto-optic alarm modules are equal
Do not start.
The utility model has the advantages that compared with prior art, technical solution of the present invention has following advantageous effects:
Protective device of the invention include spark take out circuit, spark signal processing circuit, central processing unit, at temperature
Circuit and output circuit are managed, not only external environment locating for rechargeable battery is monitored, while also in battery charging process
The spark signal of generation is monitored, the real-time processing by central processing unit to digital signal, can be in battery charging process
In, it monitors and makes corresponding alarm behavior in real time to battery or directly terminate the charging to battery, so that reduction is with battery
The phenomenon that charge and discharge spontaneous combustion of the energy, improve the service life of battery.
Detailed description of the invention
Fig. 1 is the flow diagram of protective device of the invention；
Fig. 2 is the circuit diagram that spark of the invention takes out circuit；
Fig. 3 is that spark of the invention takes out circuit corresponding current waveform figure in the normal charge and discharge of battery；
Fig. 4 is that spark taking-up circuit of the invention generates corresponding current wave when spark signal in battery charge and discharge process
Shape figure；
Fig. 5 is the flow diagram of spark signal processing circuit of the invention；
Fig. 6 is the flow diagram of Temperature Treatment circuit of the invention；
Fig. 7 is the schematic diagram that central processing unit of the invention sends and receivees signal；
Fig. 8 is the circuit diagram of output circuit of the invention；
Fig. 9 is the flow diagram of central processing unit processing digital signal of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Wherein, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Therefore, below to the embodiment of the present invention provided in the accompanying drawings
Detailed description be not intended to limit the range of claimed invention, but be merely representative of selected embodiment of the invention.
Embodiment 1
With reference to Fig. 1, a kind of electric car and electric bicycle charge and discharge spontaneous combustion protective device, the guarantor are present embodiments provided
Protection unit includes that spark takes out circuit, spark signal processing circuit, central processing unit, Temperature Treatment circuit and output circuit.
Wherein spark, which takes out circuit, to acquire the spark signal generated in electric car and battery of electric bicycle charging process, and will adopt
The spark signal collected is transmitted in spark signal processing circuit.Spark signal processing circuit receives spark and takes out circuit transmission
Spark signal after, analog-to-digital conversion is carried out to spark signal, and by the digital data transmission being converted into central processing unit.
The temperature signal that Temperature Treatment circuit detects acquisition electric car and battery of electric bicycle local environment simultaneously, and should
Temperature signal also carries out analog-to-digital conversion, and the digital signal that analog-to-digital conversion obtains also is transmitted in central processing unit.Centre
The digital signal that device will receive the digital signal and Temperature Treatment circuit transmission of the transmission of spark signal processing circuit is managed, and to reception
Two digital signals handled after be transmitted in output circuit.In particular, central processing unit can be at all kinds of numbers
Any one in chip is managed, in the present embodiment, central processing unit is selected as fpga chip, i.e. fpga chip is electronic for judging
Whether automobile and battery of electric bicycle can occur dieseling during the charging process.
With reference to Fig. 2, it includes switch S1, wideband current transformer CT, first resistor R1, that the spark in the present embodiment, which takes out circuit,
One capacitor C1 and first diode D1, wherein the both ends of the original grade coil of switch S1 and wideband current transformer CT be electrically connected it is electronic
The charging circuit of automobile and battery of electric bicycle, and one end of the subgrade coil of wideband current transformer CT is electrically connected first resistor
The anode of the input terminal of R1, the input terminal of first capacitor C1 and first diode D1, the subgrade coil of wideband current transformer CT it is another
One end is electrically connected the output end of first resistor R1 and the output end of first capacitor C1, while the subgrade coil of wideband current transformer CT
The other end ground connection, that is to say, that the output end of first resistor R1 and the output end of first capacitor C1 are grounded.And the one or two pole
The cathode of pipe D1 is then electrically connected the input terminal of spark signal processing circuit.
With reference to Fig. 3, when electric car and battery of electric bicycle during the charging process, when not generating spark signal, stream
Crossing the primary electric current of wideband current transformer CT is a smooth DC current.
With reference to Fig. 4, when electric car and battery of electric bicycle during the charging process, when generating spark signal, flow through
Wideband current transformer CT primary electric current is the electric current changed at random an of wideband.In the present embodiment, spark takes out circuit just
It is that the electric current for changing this at random takes out, and is transmitted in fpga chip by spark signal processing circuit.Specifically
It says, when flowing through the electric current of original grade coil of wideband current transformer CT is DC current, the subgrade coil induction of wideband current transformer CT
Electric current will be zero.When flowing through the electric current of original grade coil of wideband current transformer CT is the electric current changed at random, wideband current transformer
The subgrade coil of CT will sense the electric current of an identical change rate, identical frequency.So as to pass through wideband current transformer CT
It takes out this electric current changed at random, and passes through anti-interference detection, become a unidirectional, spark
Current mirror, the image can indicate the time that the current value frequency of spark signal and spark signal maintain.
With reference to Fig. 5, the spark signal processing circuit in the present embodiment includes wideband current transformer and analog to digital conversion circuit.Its
Middle wideband current transformer receives and processes spark and takes out the spark signal that circuit transmission comes, in particular, wideband current transformer will pass
Defeated next spark signal is converted to anti-interference detection unidirectional voltage form, and the spark of anti-interference detection unidirectional voltage form is believed
It number is transmitted in analog to digital conversion circuit and to carry out analog-to-digital conversion, analog to digital conversion circuit is by the digital data transmission after conversion into later
In central processor.
With reference to Fig. 6, the Temperature Treatment circuit in the present embodiment includes temperature inductor and analog to digital conversion circuit.Its medium temperature
Degree inductor is for experiencing ambient temperature at electric car and battery of electric bicycle, and the temperature that will be detected
Signal, which is transmitted in analog to digital conversion circuit, carries out analog-to-digital conversion, later analog to digital conversion circuit by the digital data transmission after conversion extremely
In central processing unit.
With reference to Fig. 7, the central processing unit in the present embodiment receives spark signal data and ambient temperature signal data, then right
After spark signal data and ambient temperature signal data are handled, it is transmitted in output circuit according to the actual situation.Its
Middle output circuit includes warning repairing module, audible and visible alarm module and cutting charge-discharge modules, while alerting repairing module, sound
Light alarm modules and cutting charge-discharge modules are electrically connected central processing unit by different ports, and alert repairing module,
There are sequential relationships in parallel between audible and visible alarm module and cutting charge-discharge modules.That is, central processing unit is according to reality
Spark signal data and ambient temperature signal data are transmitted to warning repairing module, audible and visible alarm module and cutting and filled by border situation
In discharge module.
With reference to Fig. 8, the warning repairing module in the present embodiment includes second resistance R2,3rd resistor R3, the 4th resistance
R4, the 5th resistance R5, the second diode D2, third diode D3 and the first triode Q1.The wherein output end of central processing unit
It is electrically connected the input terminal of second resistance R2, the output end of second resistance R2 is electrically connected the base stage of the first triode Q1.And the
The collector of one triode Q1 is electrically connected the input terminal of 3rd resistor R3 and the input terminal of the 4th resistance R4, the first triode Q1
Emitter ground connection.
The output end of 3rd resistor R3 and the output end of the 4th resistance R4 are electrically connected the sun of the second diode D2 simultaneously
Pole, audible and visible alarm module and cutting charge-discharge modules, the cathode of the second diode D2 are electrically connected the sun of third diode D3
Pole, the cathode of third diode D3 is electrically connected the input terminal of the 5th resistance R5, and the output end of the 5th resistance R5 then directly connects
Ground.
Audible and visible alarm module in the present embodiment includes the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th electricity
Hinder R9, the 4th diode D4, the 5th diode D5, the second triode Q2 and loudspeaker LS.The wherein output end of central processing unit
It is electrically connected the input terminal of the 6th resistance R6, the output end of the 6th resistance R6 is electrically connected the base stage of the second triode Q2.Second
Input terminal, the emitter of input terminal and the 8th resistance R8 that the collector of triode Q2 is electrically connected the 7th resistance R7 directly connect
Ground.
The output end of 7th resistance R7 and the output end of the 8th resistance R8 are electrically connected anode, the police of the 4th diode D4
Repairing module and cutting charge-discharge modules are accused, the cathode of the 4th diode D4 is electrically connected anode and the loudspeaking of the 5th diode D5
The input terminal of device LS, the cathode of the 5th diode D5 is electrically connected the input terminal of the 9th resistance R9, while the 9th resistance R9's is defeated
Outlet is electrically connected the output end of loudspeaker LS, and the output end of the 9th resistance R9 and the output end of loudspeaker LS are grounded.
Cutting charge-discharge modules in the present embodiment include the tenth resistance R10, eleventh resistor R11, third transistor
Q3 and solid-state relay J.Wherein the output end of central processing unit is electrically connected the input terminal of the tenth resistance R10, the tenth resistance R10
Output end be electrically connected third transistor Q3 base stage.The collector of third transistor Q3 is electrically connected eleventh resistor R11
Input terminal and input terminal, the emitter of solid-state relay J be directly grounded.
The output end of eleventh resistor R11 is electrically connected the input terminal of solid-state relay J, warning repairing module harmony simultaneously
Light alarm modules, and the output end of solid-state relay J is then directly grounded.
The composition of existing electric car and electric bicycle is mainly made of plastic part, and the spontaneous combustion of rechargeable battery is existing
As main is also the burning of plastic part.And the burning of the plastic part of electric car and electric bicycle depends on three factors, point
Not are as follows: the size of spark current, spark current duration and environment temperature.
Due to the difference of Summer and winter environment temperature, requirement of the spontaneous combustion of plastic part to spark current is also different, winter
Since environment temperature is lower, the spark current of high current is difficult to form spontaneous combustion in the short time.But in summer, due to environment temperature
Higher, the spark current of short time has just reached all conditions of spontaneous combustion needs enough.
With reference to Fig. 9, the present embodiment additionally provides a kind of method of spontaneous combustion protective device processing digital signal, specifically include as
Lower step:
Step S1: the counter in central processing unit transmits digital signal to spark signal processing circuit within a preset time
Number counted, and according to the number recorded within a preset time in counter, obtain spark signal processing circuit pre-
If the number of transmission digital signal in the time.
In particular, counter, which often passes through 1 second, just carries out a value to spark signal, a spark letter is often got
Number, the number in counter is increased by 1.After continuous value 20 seconds, the Digital size in counter is acquired.It is fallen into a trap
Digital size in number device can characterize the perdurabgility of spark signal.
Step S2: setting warning repairing value, warning value and interrupting value in central processing unit, and alert repairing value, warning
Value and the size of interrupting value three successively constantly increase.Warning value and interrupting value are according to electric car and electric bicycle simultaneously
Battery locating for ambient temperature value determined.In particular, the corresponding warning when external environment is in summer
Value and interrupting value, corresponding warning value and interrupting value when respectively less than external environment is in winter.In the present embodiment, warning is repaired
Reason value is selected as 3, and warning value is selected as 10, and interrupting value is selected as 15.
Step S3: the number of digital signal is transmitted within a preset time according to spark signal processing circuit, i.e., according to counting
Digital size in device judges the relationship between the number of the transmission and warning repairing value and warning value.Specifically:
When the number for transmitting digital signal is less than warning repairing value 3, then the battery of electric car and electric bicycle exists
Do not occur any problem in charging process, is received to alert repairing module, audible and visible alarm module and cutting charge-discharge modules
After the signal of central processing unit transmission, do not start.
When transmitting the number of digital signal and being less than warning value 10 not less than warning repairing value 3, electric car and electronic
The battery of bicycle during the charging process, situations such as sparking there are poor contact and inside battery, but will not by the situation
Cause battery that spontaneous combustion occurs.To which central processing unit will be to warning repairing module, audible and visible alarm module and cutting charge-discharge modules
In give a warning repairing signal, and then alert repairing module and will start, audible and visible alarm module and cutting charge-discharge modules do not start.
When the number for transmitting digital signal is not less than warning value 10, the battery of electric car and electric bicycle is charging
In the process, very close to the occurrence condition of spontaneous combustion, and then next step is needed to be implemented.
Step S4: according to the corresponding numerical values recited of the digital signal of Temperature Treatment circuit transmission, judge Temperature Treatment circuit
Relationship between the corresponding numerical values recited of the digital signal of transmission and warning value and interrupting value.Specifically:
When the corresponding numerical values recited of the digital signal of Temperature Treatment circuit transmission is less than interrupting value not less than warning value 10
When 15, central processing unit will to warning repairing module, audible and visible alarm module and cutting charge-discharge modules in signal an alert,
And then audible and visible alarm module will start, warning repairing module and cutting charge-discharge modules do not start.
When the corresponding numerical values recited of the digital signal of Temperature Treatment circuit transmission is not less than interrupting value 15, central processing unit
Voluntarily interrupt signal will be issued into warning repairing module, audible and visible alarm module and cutting charge-discharge modules, and then cut off charge and discharge
Electric module will start, and alert repairing module and acousto-optic alarm modules do not start.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structures and methods are not limited thereto.So if this field
Those of ordinary skill is enlightened by it, without departing from the spirit of the invention, is not inventively designed and the skill
The similar frame mode of art scheme and embodiment, all belong to the scope of protection of the present invention.
Claims (10)
1. a kind of electric car and electric bicycle charge and discharge spontaneous combustion protective device, it is characterised in that: the protective device includes
There is spark to take out circuit, spark signal processing circuit, central processing unit, Temperature Treatment circuit and output circuit, the spark to take
The spark signal generated in electric car and battery of electric bicycle charging process is transmitted to spark signal processing electricity by circuit out
Spark signal is carried out analog-to-digital conversion by Lu Zhong, the spark signal processing circuit, and by the digital data transmission after conversion into
In central processor, temperature signal that the Temperature Treatment circuit detects electric car and battery of electric bicycle local environment
Analog-to-digital conversion is carried out, and by the digital data transmission after conversion into central processing unit, the central processing unit receives spark letter
The digital signal of number processing circuit transmission and the digital signal of Temperature Treatment circuit transmission, and the digital signal is handled
After be transmitted in output circuit.
2. a kind of electric car according to claim 1 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: it includes switch S1, wideband current transformer CT, first resistor R1, first capacitor C1 and first diode that the spark, which takes out circuit,
The both ends of the original grade coil of D1, the switch S1 and wideband current transformer CT are electrically connected electric car and battery of electric bicycle
Charging circuit, one end of the subgrade coil of the wideband current transformer CT is electrically connected the input terminal of first resistor R1, the first electricity
Hold the input terminal of C1 and the anode of first diode D1, the other end of the subgrade coil of the wideband current transformer CT is electrically connected the
The output end of one resistance R1 and the output end of first capacitor C1, the other end of the subgrade coil of the wideband current transformer CT, first
The output end of resistance R1 and the output end of first capacitor C1 are grounded, and the cathode of the first diode D1 is electrically connected spark letter
The input terminal of number processing circuit.
3. a kind of electric car according to claim 1 or 2 and electric bicycle charge and discharge spontaneous combustion protective device, feature
It is: includes wideband current transformer and analog to digital conversion circuit in the spark signal processing circuit, the wideband current transformer receives
Spark takes out the spark signal that circuit transmission is come, and the spark signal is converted to anti-interference detection unidirectional voltage form, together
When the spark signal of the anti-interference detection unidirectional voltage form be transmitted in analog to digital conversion circuit carry out analog-to-digital conversion, it is described
Analog to digital conversion circuit is by the digital data transmission after conversion into central processing unit.
4. a kind of electric car according to claim 3 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the Temperature Treatment circuit include temperature inductor and analog to digital conversion circuit, the temperature inductor experience electric car and
Ambient temperature at battery of electric bicycle, and the temperature signal is transmitted in analog to digital conversion circuit and carries out mould
Number conversion, analog-digital conversion circuit as described is by the digital data transmission after conversion into central processing unit.
5. a kind of electric car according to claim 4 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the central processing unit is one of all kinds of digital signal processing chips, for judging electric car and electric bicycle
Whether battery can occur spontaneous combustion during the charging process.
6. a kind of electric car according to claim 5 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the output circuit includes that mould is repaired in warning repairing module, audible and visible alarm module and cutting charge-discharge modules, the warning
Block, audible and visible alarm module and cutting charge-discharge modules are electrically connected the output end of central processing unit, and institute by different port
State warning repairing module, audible and visible alarm module and cutting charge-discharge modules between there are sequential relationships in parallel.
7. a kind of electric car according to claim 6 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the warning repairing module includes second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the second diode
The output of the input terminal of D2, third diode D3 and the first triode Q1, the second resistance R2 electric connection central processing unit
End, output end are electrically connected the base stage of the first triode Q1, and the collector of the first triode Q1 is electrically connected 3rd resistor
The input terminal of the input terminal of R3 and the 4th resistance R4, the output end of the 3rd resistor R3 and the output end of the 4th resistance R4 are electric
Property the connection anode of the second diode D2, audible and visible alarm module and cutting charge-discharge modules, the cathode of the second diode D2
It is electrically connected the anode of third diode D3, the cathode of the third diode D3 is electrically connected the input terminal of the 5th resistance R5,
The emitter of the first triode Q1 and the output end of the 5th resistance R5 are grounded.
8. a kind of electric car according to claim 6 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the audible and visible alarm module includes the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 9th resistance R9, the 4th diode
The input terminal of D4, the 5th diode D5, the second triode Q2 and loudspeaker LS, the 6th resistance R6 are electrically connected central processing
Output end, the output end of device are electrically connected the base stage of the second triode Q2, and the collector of the second triode Q2 is electrically connected
The input terminal of 7th resistance R7 and the input terminal of the 8th resistance R8, the output end of the 7th resistance R7 and the 8th resistance R8's is defeated
Outlet is electrically connected the anode, warning repairing module and cutting charge-discharge modules of the 4th diode D4, the 4th diode
The cathode of D4 is electrically connected the anode of the 5th diode D5 and the input terminal of loudspeaker LS, the cathode electricity of the 5th diode D5
Property connection the 9th resistance R9 input terminal, the output end of the loudspeaker LS is electrically connected the output end of the 9th resistance R9, described
The emitter of the output end of 9th resistance R9 and the second triode Q2 are grounded.
9. a kind of electric car according to claim 6 and electric bicycle charge and discharge spontaneous combustion protective device, feature exist
In: the cutting charge-discharge modules include the tenth resistance R10, eleventh resistor R11, third transistor Q3 and solid-state relay J,
The input terminal of the tenth resistance R10 is electrically connected the output end of central processing unit, output end is electrically connected third transistor Q3
Base stage, the collector of the third transistor Q3 be electrically connected eleventh resistor R11 input terminal and solid-state relay J it is defeated
Enter end, the output end of the eleventh resistor R11 is electrically connected the input terminal of solid-state relay J, warning repairing module and acousto-optic
Alarm modules, the output end of the solid-state relay J and the emitter of third transistor Q3 are grounded.
10. the method for the processing digital signal of spontaneous combustion protective device described in a kind of any one of claim 1-6, which is characterized in that
The method specifically comprises the following steps:
Step S1: the counter inside the central processing unit transmits number letter to spark signal processing circuit within a preset time
Number number counted, according to the number recorded within a preset time in the counter, obtain the spark signal processing
Circuit transmits the number of digital signal within a preset time；
Step S2: setting warning repairing value, warning value and interrupting value in the central processing unit, and the warning repairing value,
The size of warning value and interrupting value is sequentially increased；
Step S3: transmitting the number of digital signal according to the spark signal processing circuit within a preset time, judges described time
Relationship between number and warning repairing value and warning value, specifically:
When the number is less than warning repairing value, the warning repairing module, audible and visible alarm module and cutting charge-discharge modules
Do not start；
When the number is not less than warning repairing value and is less than warning value, the warning repairing module will be according to central processing unit
The signal enabling of sending, the audible and visible alarm module and cutting charge-discharge modules do not start；
When the number is not less than warning value, perform the next step rapid；
Step S4: according to the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission, judge the Temperature Treatment
Relationship between the corresponding numerical values recited of the digital signal of circuit transmission and warning value and interrupting value, specifically:
When the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission is not less than warning value and is less than interrupting value,
The signal enabling that the audible and visible alarm module will be issued according to central processing unit, the warning repairing module and cutting charge and discharge mould
Block does not start；
When the corresponding numerical values recited of digital signal of the Temperature Treatment circuit transmission is not less than interrupting value, the cutting charge and discharge
The signal enabling that electric module will be issued according to central processing unit, the warning repairing module and acousto-optic alarm modules do not open
It is dynamic.
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