CN207426792U - A kind of emergency starting power supply - Google Patents
A kind of emergency starting power supply Download PDFInfo
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- CN207426792U CN207426792U CN201721681888.5U CN201721681888U CN207426792U CN 207426792 U CN207426792 U CN 207426792U CN 201721681888 U CN201721681888 U CN 201721681888U CN 207426792 U CN207426792 U CN 207426792U
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Abstract
The utility model discloses a kind of emergency starting power supply, super capacitor capacity attenuation and electric leakage when can solve the problem of to start vehicle using super capacitor, while solve super capacitor and heavy current impact danger that the direct parallel connection of chargeable battery is likely to occur.Including：Power supply, super capacitor module, chargeable battery group, controller, first switch circuit, and second switch circuit, the power supply is connected with the first switch circuit and the controller, the controller is connected with the first switch circuit and second switch circuit, and the first switch circuit and second switch circuit are connected respectively with the super capacitor module and chargeable battery group.The common difficulty of equipment damage caused by the utility model embodiment solves the high current charge and discharge that the super capacitor that industry always exists occurs with battery pack when in parallel.
Description
Technical field
The utility model is related to automotive field, more particularly to a kind of emergency starting power supply.
Background technology
The startup power supply of vehicle is substantially lead-acid accumulator at present.Vehicle needs big starting current on startup, so
And accumulator performance in high-multiplying power discharge and low temperature discharge becomes very poor.
Ultracapacitor is a kind of power supply between traditional capacitor and battery, with property, is relied primarily on
Electric double layer and redox fake capacitance charge storage electric energy.Super capacitor is with power density is high, the charge and discharge time is short, the cycle longevity
The advantages of life is long, operating temperature range is wide.Ultracapacitor coordinates battery applications in I. C. engine electric starting system, energy
It is effectively protected accumulator, prolonging service life of battery reduces accumulator configuration capacity, particularly in low temperature and discharged or defective battery
In the case of, it is ensured that it is reliable to start.Accumulator is decreased obviously in low temperature environment discharge capability, can cause battlebus that can not start, seriously
Influence military operation.The operating temperature range of super capacitor is wide, can work under -43 DEG C of environment, ensure that electric starting system
Normal power supply, and voltage decline is small, and starting current is big, and engine start rotating speed is high, makes the success of battlebus one-shot.
There is scheme proposition with accumulator parallel connection super capacitor at present to serve as startup power supply.But it is found by the applicant that super capacitor
With accumulator it is long-term it is directly in parallel for starting vehicle when, there are problems that super capacitor leak electricity caused by accumulator cross and put, work as length
The electricity of accumulator can be vented, lead to not use as startup power supply by super capacitor continuous discharge when not in use time.
In addition, applicant further found that when super capacitor and accumulator it is long-term directly it is in parallel be used to start vehicle when, super capacitor aging is fast,
Capacity attenuation is serious.
Utility model content
The technical problem to be solved by the present invention is to provide a kind of emergency starting power supplys, can solve to utilize super capacitor
Super capacitor capacity attenuation and electrical leakage problems when starting vehicle, while avoid super capacitor and the direct parallel connection of chargeable battery can
The heavy current impact that can occur is dangerous.
In order to solve the above-mentioned technical problem, the utility model provides a kind of emergency starting power supply, including：It is power supply, super
Electric capacity module, chargeable battery group send enable signal and in the rechargeable type when powering on to first switch circuit
Battery pack and the voltage difference of super capacitor module send the control of closure signal to second switch circuit when being less than default safety value
Device, the enable signal sent according to the controller make the super-capacitor module and the parallel connection of chargeable battery group and for adjusting
The first switch circuit of the whole super-capacitor module and chargeable battery group parallel circuit electric current and according to the controller
The closure signal of transmission makes the super-capacitor module and chargeable battery group second switch circuit directly in parallel, the power supply
It is connected with the first switch circuit and the controller, the controller and the first switch circuit and second switch circuit
It is connected, the first switch circuit and second switch circuit are connected respectively with the super capacitor module and chargeable battery group.
Further, the emergency starting power supply further includes：For detecting the super capacitor module and chargeable battery
The voltage detected is simultaneously sent to the voltage detecting circuit of controller by group voltage, and the voltage detecting circuit surpasses respectively with described
Grade electric capacity module, chargeable battery group are connected with controller.
Further, the emergency starting power supply further includes to detect the first switch circuit and/or super capacitor
The temperature of module and the temperature sensing circuit that the temperature detected is sent to the controller, the temperature sensing circuit and institute
Controller is stated to be connected and with first switch circuit and/or super capacitor module be connected.
Further, the first switch circuit includes energy storage switch driving circuit and energy storage on-off circuit, wherein：
For energy storage on-off circuit to be driven to turn on and controls the energy storage switch driving circuit point of energy storage on-off circuit electric current
It is not connected with power supply, controller and the energy storage on-off circuit；The energy storage on-off circuit respectively with the super capacitor module
It is connected with chargeable battery group.
Further, the energy storage on-off circuit includes the current monitoring sub-circuit of series connection and energy storage switch sub-circuit, uses
In obtaining the energy storage on-off circuit current value and curent change trend be sent to the electric current of energy storage switch driving circuit
Monitoring sub-circuit and energy storage switch sub-circuit are connected respectively with the energy storage switch driving circuit.
Further, the current monitoring sub-circuit includes current sampling resistor and is connected in parallel on the current sampling resistor
Comparison circuit, for being sent out by the current value obtained from the current sampling resistor compared with a reference value and by comparative result
The comparison circuit for giving the energy storage switch driving circuit is connected with the energy storage switch driving circuit, wherein, the electric current takes
One end of sample resistance is connected with energy storage switch sub-circuit, the other end and super capacitor module or chargeable battery group phase
Even.
Further, the energy storage switch sub-circuit includes switching tube；The energy storage switch driving circuit and the switch
Pipe is connected.
Further, the switching tube is managed for N-MOS, the grid phase of the energy storage switch driving circuit and the switching tube
Even.
Further, the energy storage on-off circuit further includes anti-backflow diode, the anti-backflow diode and the electricity
Stream monitoring sub-circuit and energy storage switch sub-circuit series connection.
Further, the second switch circuit includes relay or including insulated gate bipolar transistor IGBT.
The utility model utilizes the low internal resistance of super capacitor, wide temperature, the power-type energy storage that High-current output characteristic is good, safe
Characteristic, the mutual supplement with each other's advantages that energy charged with chargeable battery group (accumulator or lithium battery etc.) is high, equivalent internal resistance is low.The present embodiment
In power on after, super capacitor and chargeable battery group first pass through first switch circuit and connect, and chargeable battery group is to super
Capacitance carries out constant-current charge, in the range of super capacitor can allow, charges by super capacitor of electric current as big as possible, is answering
It is anxious that starting stage offer High-current output is provided, shorten the charging time, ensure that and suddenly start success rate, greatly improve startup
Unfailing performance, the service life for extending super capacitor.On the other hand, only in the electricity of chargeable battery group and super-capacitor module
When pressure difference is less than default safety value, controller just controls second switch closing of circuit, and when chargeable battery group and super capacitor
When the voltage difference of module is more than default safety value or control power supply access failure, second switch circuit is in off-state, i.e.,
Use state is in parallel, and non-working condition disconnects, and avoids the electrical leakage problems of super capacitor, while it is high for a long time to avoid super capacitor
Capacitance caused by current potential is charged persistently reduces the drawbacks of increasing with super capacitor internal resistance.
The utility model is pre-charged by constant current and designed, and successfully avoids chargeable battery group and super-capacitor module separation
When state transition is to parallel connection, due between battery pack and super capacitor the several m Ω of tens of V pressure differences, super capacitor it is equivalent
The security risk caused by thousands of A rush of current caused by small resistor.Solve super capacitor and electricity that industry always exists
The common difficulty of equipment damage caused by the high current charge and discharge occurred during the group parallel connection of pond.
Other features and advantages of the utility model will illustrate in the following description, also, partly from specification
In become apparent or understood by implementing the utility model.The purpose of this utility model and further advantage can pass through
Specifically noted structure is realized and obtained in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction,
With explaining the technical solution of the utility model together with embodiments herein, do not form to technical solutions of the utility model
Limitation.
Fig. 1 is a kind of 1 emergency starting power supply architecture figure of the utility model embodiment；
Fig. 2 is another emergency starting power supply architecture figure of the utility model embodiment 1；
Fig. 3 is 2 emergency starting power supply architecture figure of the utility model embodiment；
Fig. 4 is 5 emergency starting power supply architecture figure of the utility model embodiment；
Fig. 5 is 6 energy storage on-off circuit of the utility model embodiment, 142 schematic diagram；
Fig. 6 is 1421 circuit diagram of current monitoring sub-circuit in the utility model embodiment 6；
Fig. 7 is that energy storage switchs 1422 circuit diagram of sub-circuit in the utility model embodiment 6；
Fig. 8 is 142 schematic diagram of energy storage on-off circuit for including anti-backflow diode in the utility model embodiment 6；
Fig. 9 is the utility model application example emergency starting power supply stereogram one；
Figure 10 is the utility model application example emergency starting power supply stereogram two；
Figure 11 is the utility model application example emergency starting power work flow chart.
Specific embodiment
For the purpose of this utility model, technical solution and advantage is more clearly understood, below in conjunction with attached drawing to this
The embodiment of utility model is described in detail.It should be noted that in the case where there is no conflict, embodiment in the application and
Feature in embodiment can be mutually combined.
Step shown in the flowchart of the accompanying drawings can be in the computer system of such as a group of computer-executable instructions
It performs.Also, although logical order is shown in flow charts, it in some cases, can be to be different from herein suitable
Sequence performs shown or described step.
Applicant has found after research, causes super capacitor aging fast, capacity attenuation it is serious the reason is that：When super electricity
It is very low or when being zero to hold voltage, directly to super capacitor charging after accumulator is in parallel with super capacitor, due to super electricity at this time
Appearance internal resistance is very low, and the large current charge not being controlled by can cause super capacitor to generate heat, and overheat can cause the reality of super capacitor
Capacity declines, and fan-out capability reduces.And due to locating always under chargeable battery group (accumulator or lithium battery etc.) holding state
In parallel connection, for a long time under high potential effect, since the electrode surface of capacitance more or less has certain functional group, electrolysis
Liquid also more or less have impurity, high voltage electric field effect under electrode functional group or electrolyte in impurity can generate farad
Side reaction, the product of these side reactions can adsorb on porous carbon or cause porous carbon localized micro to lose activity, and causing can
Capacitance loss is caused using the decline of specific surface area.Side reaction product will also result in slowing down for ionic adsorption/desorption rate simultaneously,
Increase super capacitor internal resistance.Additionally due to electrode of super capacitor is attached to for activated carbon in aluminum foil current collector, therefore super electricity
Hold in charging certain voltage, oxidation reaction can occur for positive pole aluminium foil collector, and voltage is higher, keep the longer oxidation of high-voltage time
Degree is bigger, and internal resistance is bigger.Above multiple large current charge out of control, under long-term high potential effect capacitance is caused to decline,
Internal resistance increase, electrolyte decomposition generate the problems such as gas evaporation, the lost of life and electric leakage.
In order to solve super capacitor electric leakage and capacity fade problem, the utility model proposes following scheme：
Embodiment one
The present embodiment emergency starting power supply is as shown in Figure 1, (also referred to as super below including power supply 10, super capacitor module 11
Capacitance module), chargeable battery group 12 and：
For sending enable signal to the first switch circuit 14 when powering on and judging to work as chargeable battery
When the voltage difference of group 12 and super-capacitor module 11 is less than default safety value closure signal is sent to the second switch circuit 15
Controller 13；
Enable signal for being sent according to the controller 13 makes the super-capacitor module 11 and chargeable battery group
The 12 in parallel and first switches for adjusting the electric current of 12 parallel circuit of the super-capacitor module 11 and chargeable battery group
Circuit 14；
Closure signal for being sent according to the controller 13 makes the super-capacitor module 11 and chargeable battery group
12 second switch circuits 15 directly in parallel；
The power supply 10 is connected with the first switch circuit 14 and the controller 13, the controller 13 and described the
One on-off circuit 14 is connected with second switch circuit 15, the first switch circuit 14 and second switch circuit 15 respectively with it is described
Super capacitor module 11 and chargeable battery group 12 connect.
Wherein：First switch circuit 14 makes super-capacitor module 11 and chargeable battery group 12 in parallel, refers to：Described first
On-off circuit 14 is connected respectively with super-capacitor module 11 and chargeable battery group 12, when first switch circuit 14 receives enabled letter
After number, make super-capacitor module 11 and chargeable battery group 12 in parallel by first switch circuit 14, first switch circuit 14 can
To control the electric current of the parallel circuit.
Above-mentioned second switch circuit 15 makes super-capacitor module 11 and chargeable battery group 12 directly in parallel, refers to：It is described
Second switch circuit 15 is connected respectively with super-capacitor module 11 and chargeable battery group 12, is closed when second switch circuit 15 receives
After closing signal, make super-capacitor module 11 and chargeable battery group 12 directly in parallel.
Controller noted above 13 sends enable signal to first switch circuit 14 after being powered up, in addition, controller 13 is sentenced
It is disconnected when the voltage difference of chargeable battery group 12 and super-capacitor module 11 is more than or equal to default safety value, can also be to described the
One on-off circuit 14 sends enable signal.
First switch circuit 14 makes chargeable battery group 12 and super-capacitor module 11 according to the enable signal of controller 13
Parallel connection, second switch circuit 15 make chargeable battery group 12 and super-capacitor module 11 simultaneously according to the closure signal of controller 13
In other words connection, sends control signal, first switch circuit 14 and second switch circuit 15 will not make rechargeable type without controller 13
Battery pack 12 is in parallel with super-capacitor module 11.
Power supply 10 can be a DC/DC conversion circuit in above-mentioned power supply, that is, Fig. 1, play burning voltage and convert the work of voltage
With providing control power supply for entire emergency starting power supply.
Said program, only when the voltage difference of chargeable battery group 12 and super-capacitor module 11 is less than default safety value,
Both just make it is directly in parallel by second switch circuit 15 so that chargeable battery group 12 directly to super-capacitor module 11 into
Row charges.When the voltage difference of chargeable battery group 12 and super-capacitor module 11 is more than or equal to default safety value, pass through first
On-off circuit 14 is in parallel, and the electric current of the parallel circuit is controlled by first switch circuit 14, ensures that super-capacitor module 11 will not be because
Cause capacity attenuation for charging current is excessive.Meanwhile first switch circuit 14 and second switch are controlled by controller 13 respectively
The conducting of circuit 15, from the electrical leakage problems without occurring due to long-time turns on.In addition, controller 13 powers on backward
One on-off circuit 14, which sends enable signal, makes chargeable battery group 12 and 11 auto parallel Connection of super-capacitor module, when controller 13 is disconnected
After electricity, first switch circuit 14 and second switch circuit 15 disconnect.
Super capacitor electric leakage and capacity fade problem can be solved simultaneously using technical solutions of the utility model.Using this reality
Applying a portable emergency startup power supply can non-maintaining standby for a long time and storage.In addition, the emergency starting electricity of the utility model
Source can be not only used for family car, can also be applied to engineering truck, the emergency starting of military vehicle.Due to engineering truck,
The starting current bigger that military vehicle needs, the design voltage of chargeable battery group is higher, such as the gasoline available for 12v voltages
The diesel vehicle of vehicle and 24v or 48v voltages can more embody the utility model advantage.
Controller can be integrated with the work(of detection super-capacitor module and chargeable battery group voltage in the present embodiment Fig. 1
Can, in other embodiments, controller can also obtain super-capacitor module and chargeable battery group at other instruments, equipment
Voltage.For example, in an alternative, above-mentioned emergency starting power supply further includes：For detecting the super-capacitor module
11 and 12 voltage of chargeable battery group and the voltage detecting circuit 16 that the voltage detected is sent to controller 13, the voltage
Detection circuit 16 is connected respectively with the super-capacitor module group 11, chargeable battery group 12 and controller 13, as shown in Figure 2.
Chargeable battery group 12 described above can be capacity type or power-type lead-acid battery group or be capacity type or work(
Rate type lithium battery group or other chargeable battery groups.The super capacitor module 11 can be ultracapacitor or super electricity
Pond group is the power type battery group with high current charge-discharge ability.The second switch circuit 15 can be relay or
For IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor).
Embodiment two
In an alternative, first switch circuit 14 includes energy storage switch driving circuit 141 and energy storage on-off circuit
142, energy storage switch driving circuit 141 is connected respectively with power supply 10, controller 13 and the energy storage on-off circuit 142, the storage
Energy on-off circuit 142 is connected respectively with the super capacitor module 11 and chargeable battery group 12, as shown in figure 3, wherein：
The energy storage switch driving circuit 141, the enable signal for being sent according to the controller 13 make the energy storage
On-off circuit 142 is in the conduction state and electric current for adjusting the energy storage on-off circuit 142；
The energy storage on-off circuit 142 is connected with the super-capacitor module 11 and chargeable battery group 12, works as institute respectively
State energy storage on-off circuit 142 it is in the conduction state when, chargeable battery group 12 is opened with super-capacitor module 11 by the energy storage
Powered-down road 142 is in parallel, and chargeable battery group 12 is made to carry out constant current to super-capacitor module 11 by the energy storage on-off circuit 142
It charges.
Optionally, the controller 13 is additionally operable to judge the voltage difference when chargeable battery group 12 with super-capacitor module 11
During less than default safety value, enable signal is gone to the first switch circuit 14 transmission, the first switch circuit 14 is according to institute
State the parallel circuit that enable signal is gone to disconnect the super-capacitor module 11 and chargeable battery group 12 of the transmission of controller 13；Tool
Body, which goes enable signal to the transmission of energy storage switch driving circuit 141, and the energy storage switch driving circuit 141 is used
In what is sent according to the controller 13 enable signal is gone to be off the energy storage on-off circuit 142.
When second switch circuit 15 receives closure signal, super-capacitor module 11 and chargeable battery group 12 pass through second
On-off circuit 15 is directly in parallel.Due to 15 resistance very little of second switch circuit, the electric current of chargeable battery group 12 will pass through second
On-off circuit 15 charges for super-capacitor module 11.At this point, in order to avoid second switch circuit 15 disconnection after, chargeable battery
Access between group 12 and super-capacitor module 11 causes super-capacitor module to be leaked electricity, and controller 13 can be to first switch circuit
Enable signal is gone in 14 transmissions, is off energy storage on-off circuit 142 by energy storage switch driving circuit 141.
By setting energy storage switch driving circuit 141 and energy storage on-off circuit 142, when chargeable battery group 12 and super electricity
During 11 pressure difference of molar block excessive (be more than default safety value), energy storage switch driving circuit 141 is in energy storage on-off circuit 142 to lead
Logical state.Chargeable battery group 12 carries out constant current precharge by energy storage on-off circuit 142 for super-capacitor module 11.Energy storage is opened
It for example can be a PWM (Pulse Width Modulation, pulse width modified tone) circuit to close driving circuit 141, passed through
Control duty cycle makes energy storage on-off circuit 142 intermittently turn on, to realize constant-current charge.Avoid it is directly in parallel after pressure difference is excessive causes
Super-capacitor module 11 is impaired.When chargeable battery group 12 and the voltage difference of super-capacitor module 11 (are less than in safe range
Default safety value) when, controller 13 sends the signal for being closed second switch circuit 15, makes chargeable battery group 12 and super electricity
Molar block 11 is directly in parallel.By meeting the direct parallel connection of condition, chargeable battery group 12 is avoided to be grown with super-capacitor module 11
11 electrical leakage problems of super-capacitor module caused by time is connected in parallel.In addition, setting constant-current charge, pre-charge voltage progressively increases
Add and on the one hand ensure the safety that charges, on the other hand can accelerate charging rate, shorten the charging time.
Embodiment three
In one alternate embodiment, the emergency starting power supply can also have over-voltage protection function.The controller
13 for judging when the voltage value of the chargeable battery group 12 is less than first voltage threshold value or higher than second voltage threshold value,
Enable signal is gone to the first switch circuit 14 transmission or sends cut-off signal to the second switch circuit 15, and is sent
Fault-signal, the first voltage threshold value ＜ second voltage threshold values.
For emergency starting power supply as shown in Figure 3, enable signal is gone to the first switch circuit 14 transmission, specially to
Enable signal is gone in the transmission of energy storage switch driving circuit 141.If in constant current precharge mode, to energy storage switch driving circuit
Enable signal is gone in 141 transmissions, if in direct charged in parallel pattern, cut-off signal is sent to second switch circuit 15.Institute
State first switch circuit 14 goes enable signal to disconnect the super-capacitor module 11 and can fill according to what the controller 13 was sent
The parallel circuit of formula battery pack 12.For emergency starting power supply as shown in Figure 3, the energy storage switch driving circuit 141 is according to institute
That states the transmission of controller 13 goes enable signal to be off energy storage on-off circuit 142.
For example, in charging process, if controller 13 detects that input voltage is less than first voltage threshold value (such as 20V)
Or higher than second voltage threshold value (30V), then disconnecting circuit, stop charging and exporting fault-signal.Above-mentioned charging process includes
Chargeable battery group 12 carries out constant-current charge by first switch circuit 14 (energy storage on-off circuit 142) to super-capacitor module 11
Process or the mistake that is plugged in by second switch circuit 15 to super-capacitor module 11 of chargeable battery group 12
Journey.
Example IV
In one alternate embodiment, the emergency starting power supply can also have charging abnormity protection function.The control
Device 13 for carrying out timing when the chargeable battery group 12 charges to super-capacitor module 11, when charging between be more than
During preset time value, go enable signal to the first switch circuit 14 transmission or sent to the second switch circuit 15 disconnected
ON signal, be concurrently out of order signal.
For emergency starting power supply as shown in Figure 3, enable signal is gone to the first switch circuit 14 transmission, specially to
Enable signal is gone in the transmission of energy storage switch driving circuit 141.If in constant current precharge mode, to energy storage switch driving circuit
Enable signal is gone in 141 transmissions, if in direct charged in parallel pattern, cut-off signal is sent to second switch circuit 15.Institute
State first switch circuit 14 goes enable signal to disconnect the super-capacitor module 11 and can fill according to what the controller 13 was sent
The parallel circuit of formula battery pack 12.For emergency starting power supply as shown in Figure 3, the energy storage switch driving circuit 141 is according to institute
That states the transmission of controller 13 goes enable signal to be off energy storage on-off circuit 142.
For example, in charging process, controller 13 carries out timing, if the charging time is more than 2 times of design charging time,
Then stop charging and exporting fault-signal.Above-mentioned charging process includes chargeable battery group 12 and passes through (the storage of first switch circuit 14
Energy on-off circuit 142) process or chargeable battery group 12 of the progress constant-current charge of super-capacitor module 11 are opened by second
The process that powered-down road 15 plugs in super-capacitor module 11.
Embodiment five
The present embodiment emergency starting power supply has secondary superheater defencive function.On the basis of above-described embodiment, the dress
It puts and may also include temperature sensing circuit 17, as shown in Figure 4.
For emergency starting power supply shown in Fig. 1 or Fig. 2, the temperature sensing circuit 17 is electric for detecting the first switch
Road 14 and/or the temperature of super-capacitor module 11, and the temperature detected is sent to the controller 13；The temperature detection
Circuit is connected with the controller and is connected with first switch circuit and/or super capacitor module；
The temperature that the controller 13 is additionally operable to judge to detect when the temperature sensing circuit 17 is higher than the first temperature threshold
During value, sent to the first switch circuit 14 and reduce current signal, the first switch circuit 14 is made to reduce the super electricity
The electric current of 12 parallel circuit of molar block 11 and chargeable battery group；And detected for judging the temperature sensing circuit 17
When temperature is higher than second temperature threshold value, enable signal or electric to the second switch is gone to the first switch circuit 14 transmission
The transmission of road 15 cut-off signal (if in constant current precharge mode, enable signal is gone to the transmission of first switch circuit 14, if
In direct charged in parallel pattern, then cut-off signal is sent to second switch circuit 15), be concurrently out of order signal, and described first
Temperature threshold is less than second temperature threshold value；
For emergency starting power supply shown in Fig. 3, the temperature sensing circuit 17 for detect energy storage on-off circuit 142 and/
Or the temperature of super-capacitor module 11, and the temperature detected is sent to the controller 13；
The temperature that the controller 13 is additionally operable to judge to detect when the temperature sensing circuit 17 is higher than the first temperature threshold
It during value, is sent to the energy storage switch driving circuit 14 and reduces current signal, the energy storage switch driving circuit 141 is made to reduce institute
State the electric current of energy storage on-off circuit 142；And for judging that the temperature that the temperature sensing circuit 17 detects is warm higher than second
When spending threshold value, go enable signal to the energy storage switch driving circuit 141 transmission or sent to the second switch circuit 15
Cut-off signal (if in constant current precharge mode, goes enable signal, if place to the transmission of energy storage switch driving circuit 141
In direct charged in parallel pattern, then cut-off signal is sent to second switch circuit 15), be concurrently out of order signal, first temperature
It spends threshold value and is less than second temperature threshold value.
It is protected by secondary superheater, flexibly controls electric current, the energy storage that on the one hand can be monitored under constant current precharge mode is opened
Whether the temperature of powered-down road 142 and/or super-capacitor module 11 is in safe range.It is adjusted at any time according to the temperature of detection object
It to the pre-charge current of super-capacitor module 11, safely and fast charges, shortens precharge time.Reduce electricity when temperature is slightly higher
Stream avoids constant temperature from raising while takes into account the needs that charge, and is stopping charging when the temperature is excessively high, is avoiding circuit excessively high due to temperature
It is damaged.On the other hand the temperature of super-capacitor module 11 under direct charged in parallel pattern can also be monitored whether in safe model
In enclosing.
Above-mentioned temperature sensing circuit 17 can be thermistor.For example, controller 13 passes through heat during charging work
Quick resistance monitors the temperature of energy storage on-off circuit 142 in real time, when temperature is more than about 80 DEG C, can set and be reduced to output current
Half or so if temperature continues to rise to over 90 DEG C, immediately closes off circuit, stops charging process and export failure letter
Number.
In one alternate embodiment, the emergency starting power supply in the various embodiments described above can also set display module, can
To show the one or more of herein below：It is the output voltage of emergency starting power supply, carrying capacity, chargeable battery group voltage, super
The parameters such as grade capacitance voltage, charging and discharging currents, temperature, the instruction of super capacitor capacity.
Embodiment six
The present embodiment describes the energy storage on-off circuit 142 in above-described embodiment, as shown in figure 5, energy storage on-off circuit 142 wraps
The current monitoring sub-circuit 1421 of series connection and energy storage switch sub-circuit 1422 are included, the current monitoring sub-circuit 1421 and energy storage are opened
Climax circuit 1422 is connected respectively with the energy storage switch driving circuit 141；The current monitoring sub-circuit 1421 is used to obtain
The current value of the energy storage on-off circuit 142, and the variation tendency of the current value is sent to the energy storage switch drive electricity
Road 141；
The energy storage switch driving circuit 141 is used for the change of the current value sent according to the current monitoring sub-circuit 1421
The driving energy storage of change trend switchs sub-circuit 1422 to adjust the electric current of the energy storage on-off circuit 142, makes chargeable battery group 12
Constant-current charge is carried out to super-capacitor module 11 by the energy storage on-off circuit 142.
As shown in fig. 6, above-mentioned current monitoring sub-circuit 1421 can for example include current sampling resistor and be connected in parallel on described
Comparison circuit on current sampling resistor, wherein, the current sampling resistor is connected with energy storage switch sub-circuit 1422, institute
Comparison circuit is stated with the energy storage switch driving circuit 141 to be connected；The comparison circuit is used for will be from the current sampling resistor
The current value of acquisition is sent to the energy storage switch driving circuit 141, the energy storage compared with a reference value, by comparative result
Switch driving circuit 141 adjusts the electric current of the energy storage on-off circuit 142, the energy storage switch drive according to the comparative result
Circuit 141 is according to the input of current monitoring sub-circuit 1421, negative feedback control duty cycle, so as to keep the energy storage switch electricity
1422 electric current of road it is constant.
In the present embodiment attached drawing, current monitoring sub-circuit 1421 is connected with chargeable battery group 12, energy storage switch electricity
Road 1422 is connected with super-capacitor module 11, and in other embodiments, current monitoring sub-circuit 1421 switchs sub-circuit with energy storage
1422 position can exchange, i.e., current monitoring sub-circuit 1421 is connected with super-capacitor module 11, energy storage switch sub-circuit
1422 are connected with chargeable battery group 12.Specifically, one end of current sampling resistor connects with energy storage switch sub-circuit 1422
It connects, the other end can be connected with super-capacitor module 11 or chargeable battery group 12.
As shown in fig. 7, above-mentioned energy storage switch sub-circuit 1422 includes switching tube；The energy storage switch driving circuit 141 with
The switching tube is connected, and the electric current of the energy storage on-off circuit 142 is adjusted by the switching tube.
Optionally, the switching tube is managed for N-MOS, the grid phase of switching tube described in the energy storage switch driving circuit 141
Even.Energy storage switch driving circuit 141 ensures that the load current of N-MOS pipes is in steady state by controlling duty cycle.Energy storage is opened
It closes driving circuit 141 and prior art realization may be employed.
Optionally, as shown in figure 8, the energy storage on-off circuit 142 further includes anti-backflow diode, two pole of anti-backflow
Pipe is connected with the current monitoring sub-circuit 1421 and energy storage switch sub-circuit 1422.
Each optional embodiment in various embodiments above and embodiment can be used in conjunction with one another.
Above-mentioned emergency starting power supply can claim portable emergency starting power supply or moving emergency power supply etc. again, circuit design into
Cathode (anode altogether) is controlled, i.e. the control circuits such as energy storage on-off circuit 142, energy storage switch driving circuit 141 are connected on cathode.
Above-mentioned emergency starting power supply can also have the function of reverse charging, after vehicle start-up, when the electricity of mobile generator
When pressure is higher than the voltage of emergency starting power supply, reverse current can be generated to emergent startup power supply supplement electricity.
Using example
This example provides a concrete application example, and emergency starting power supply stereogram is shown in Fig. 9 and Figure 10 in this example,
In, super-capacitor module 11 is ultracapacitor (hereinafter referred to as super capacitor), and chargeable battery group 12 is lithium battery, can also
For lead-acid accumulator, controller 13 and first switch circuit 14 (including energy storage switch driving circuit and energy storage on-off circuit) are integrated
On one piece of circuit board, controller 13 is realized using MCU (Microcontroller Unit, micro-control unit), second switch
Circuit 15 is realized using direct-current vacuum relay.
When not working, relay is off, and super capacitor and lithium battery are without parallel connection.Booting sequence such as Figure 11 institutes
Show, comprise the following steps：
Step 1, closed circuit master switch, connects control power supply, super capacitor, cathode of lithium battery bonding, and start-up circuit closes
Lock；
At this point, voltage detecting circuit can detect the voltage of super capacitor and lithium battery in real time, and will be on the voltage that detected
Report MCU；
Step 2, energy storage on-off circuit is in the conduction state, and lithium battery is pre-charged super capacitor automatic constant current；
The setting of pre-charge current can also refer to super capacitor and lithium electricity in addition to considering super capacitor rated voltage
Voltage difference and/or lithium battery temperature value between pond.A basicly stable electric current is kept to charge super capacitor；Lithium battery temperature
Angle value is higher, and pre-charge current is smaller.
Step 3, MCU judges whether the voltage difference between lithium battery and super capacitor is less than default safety value, if so, holding
Row step 4, if not, return to step 2；
Voltage difference is more than default safety value explanation, and super capacitor and lithium battery should not be directly in parallel at this time, therefore relay is still located
In off-state.Default safety value is seriously to cause the short-life voltage difference of super capacitor contracting.
Step 4, MCU sends closure signal to relay, makes super capacitor directly in parallel with lithium battery, is done to start vehicle
It is good to prepare；
Step 5, it is vehicle confession by starting switch (such as twist car key or by start button), super capacitor and accumulator
Electricity, vehicle launch.
Super capacitor charging finishes, super capacitor and lithium battery it is direct it is in parallel after can pass through indicator light, display or alarm
The modes such as sound notify user.After user starts vehicle success, relay keeps closure state, then super capacitor and lithium
(storage) battery it is in parallel, power jointly to vehicle mounted electrical apparatus, tackle the sudden high currents of vehicle electric element need, stable power-supplying circuit
Voltage.When user turns off vehicle circuit general switch, the power-off of more than control circuit, relay disconnect, then super capacitor
With the disconnection of lithium (storage) battery.In addition, if occur lithium (storage) cell voltage less than first voltage threshold value or higher than second electricity-
Pressing threshold value, either lithium (storage) battery temperature is higher than second temperature threshold value or charging time more than preset time value, then MCU meetings
Disconnect relay.For example, if user forgets deenergization, when MCU detects lithium (storage) cell voltage less than default first electricity
When pressing threshold value, then MCU disconnects relay, and lithium (storage) battery stops output current, so as to protect lithium (storage) battery and super capacitor.
In order under conditions of extreme temperature (such as -20~-43 DEG C), be set as portable emergency startup power supply
Heating unit is put, ensures that chargeable battery group still is able to powerful electric current output after starting heating unit.
In addition, after portable emergency startup power supply repeatedly starts vehicle motor, electricity is caused to reduce, using vehicle-mounted
Generator carry out complementarity reverse charge for lithium battery and super capacitor.After lithium battery is charged, it is possible to continuously start it
His vehicle, ensure efficiently, the other fallback vehicles of quickly starting.Except using the side that the quick reverse charge of lithium battery is given after vehicle launch
Outside formula, can also by charger with external alternating current be lithium battery charge.
The automobile-used startup power supply of the utility model disclosure satisfy that 12V passenger cars, 24V commercial car, 24V or 48V plate armours, crawler belt weight
All vehicles such as type vehicle use.
The automobile-used startup power supply of the use of the new type has high-power, high-energy, small-sized, lightweight, ultralow self discharge loss etc.
Advantage, use environment temperature range is wide up to -43 DEG C~+55 DEG C, can meet the warm requirement of width of the military, suitable for all kinds of in the entire PLA
Vehicle power meet an urgent need it is outer startup needs.
One of ordinary skill in the art will appreciate that all or part of step in the above method can be instructed by program
Related hardware is completed, and described program can be stored in computer readable storage medium, such as read-only memory, disk or CD
Deng.Optionally, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, the form that hardware may be employed in each module/unit in above-described embodiment are realized, can also use the shape of software function module
Formula is realized.The utility model is not restricted to the combination of the hardware and software of any particular form.
Although the embodiment disclosed by the utility model is as above, the content only the utility model for ease of understanding
And the embodiment used, it is not limited to the utility model.Technical staff in any the utility model fields,
On the premise of not departing from the spirit and scope disclosed by the utility model, it can be carried out in the form and details of implementation any
Modification and variation, but the scope of patent protection of the utility model, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of emergency starting power supply, which is characterized in that including：Power supply, super capacitor module, are being connected chargeable battery group
During power supply enable signal is sent to first switch circuit and in the chargeable battery group and the voltage difference of super capacitor module
During less than default safety value the controller of closure signal, the enabled letter sent according to the controller are sent to second switch circuit
Number make the super-capacitor module and chargeable battery group in parallel and for adjusting the super-capacitor module and rechargeable type electricity
The first switch circuit of pond group parallel circuit electric current and according to the controller send closure signal make the super capacitor
Module and the second switch circuit of chargeable battery group directly parallel connection, the power supply and the first switch circuit and the control
Device is connected, and the controller is connected with the first switch circuit and second switch circuit, the first switch circuit and second
On-off circuit is connected respectively with the super capacitor module and chargeable battery group.
2. emergency starting power supply according to claim 1, which is characterized in that
The emergency starting power supply further includes：For detecting the super capacitor module and chargeable battery group voltage and will detect
To voltage be sent to the voltage detecting circuit of controller, the voltage detecting circuit respectively with the super capacitor module, can
Charging cell group is connected with controller.
3. emergency starting power supply according to claim 1, which is characterized in that
The emergency starting power supply is further included to detect the temperature of the first switch circuit and/or super capacitor module and incited somebody to action
The temperature detected is sent to the temperature sensing circuit of the controller, and the temperature sensing circuit is connected with the controller,
And it is connected with first switch circuit and/or super capacitor module.
4. emergency starting power supply according to claim 1, which is characterized in that
The first switch circuit includes energy storage switch driving circuit and energy storage on-off circuit, wherein：
For drive energy storage on-off circuit turn on and control energy storage on-off circuit electric current energy storage switch driving circuit respectively with
Power supply, controller are connected with the energy storage on-off circuit；The energy storage on-off circuit respectively with the super capacitor module and can
Charging cell group connects.
5. emergency starting power supply according to claim 4, which is characterized in that
The energy storage on-off circuit includes the current monitoring sub-circuit of series connection and energy storage switch sub-circuit, for obtaining the energy storage
On-off circuit current value and the current monitoring sub-circuit and the storage that curent change trend is sent to energy storage switch driving circuit
Sub-circuit can be switched respectively with the energy storage switch driving circuit to be connected.
6. emergency starting power supply according to claim 5, which is characterized in that
The current monitoring sub-circuit includes current sampling resistor and the comparison circuit being connected in parallel on the current sampling resistor, uses
In being sent to the energy storage by the current value obtained from the current sampling resistor compared with a reference value and by comparative result
The comparison circuit of switch driving circuit is connected with the energy storage switch driving circuit, wherein, one end of the current sampling resistor
It is connected with energy storage switch sub-circuit, the other end is connected with super capacitor module or chargeable battery group.
7. emergency starting power supply according to claim 5, which is characterized in that
The energy storage switch sub-circuit includes switching tube；The energy storage switch driving circuit is connected with the switching tube.
8. emergency starting power supply according to claim 7, which is characterized in that
The switching tube is managed for N-MOS, and the energy storage switch driving circuit is connected with the grid of the switching tube.
9. emergency starting power supply according to claim 5, which is characterized in that
The energy storage on-off circuit further includes anti-backflow diode, the anti-backflow diode and the current monitoring sub-circuit and
Energy storage switch sub-circuit series connection.
10. emergency starting power supply according to claim 1, which is characterized in that
The second switch circuit includes relay or including insulated gate bipolar transistor IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681888.5U CN207426792U (en) | 2017-12-06 | 2017-12-06 | A kind of emergency starting power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721681888.5U CN207426792U (en) | 2017-12-06 | 2017-12-06 | A kind of emergency starting power supply |
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| CN207426792U true CN207426792U (en) | 2018-05-29 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800180A (en) * | 2017-12-07 | 2018-03-13 | 河南省桓立机电科技有限公司 | A kind of automobile-used starter, emergency starting power supply and automobile-used startup power supply |
| CN113543431A (en) * | 2020-04-20 | 2021-10-22 | 中车唐山机车车辆有限公司 | Lighting device and rail vehicle |
| CN115549230A (en) * | 2022-01-25 | 2022-12-30 | 荣耀终端有限公司 | Charging control circuit and terminal |
-
2017
- 2017-12-06 CN CN201721681888.5U patent/CN207426792U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107800180A (en) * | 2017-12-07 | 2018-03-13 | 河南省桓立机电科技有限公司 | A kind of automobile-used starter, emergency starting power supply and automobile-used startup power supply |
| CN113543431A (en) * | 2020-04-20 | 2021-10-22 | 中车唐山机车车辆有限公司 | Lighting device and rail vehicle |
| CN115549230A (en) * | 2022-01-25 | 2022-12-30 | 荣耀终端有限公司 | Charging control circuit and terminal |
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