CN205632365U - Car intelligence battery - Google Patents

Abstract

The utility model relates to a car intelligence battery, including locate in the battery case auxiliary circuit with reveal the reset switch in the shell outside, auxiliary circuit includes the control unit and controlled switch, the control unit is connected with positive electrode, negative electrode, the control unit is used for monitoring the voltage of group battery, controls controlled switch and break off the group battery to positive electrode and the control unit's power supply, messenger's group battery entering sleep state when the voltage that detects the group battery is lighter than the second threshold, the positive pole of group battery is connected to reset switch one end, receives the external force closure to make the group battery resume the power supply to the control unit when the group battery is in the sleep state for the group battery is awaken up by sleep power save state. The utility model discloses when group battery voltage reduction when being less than the second threshold, the group battery gets into the sleep state. When needs restarted the vehicle, the manual reset switch of dew battery case outside of pressing down can let the battery work of returning to normal, need not to wait for that it takes the fire to rescue the vehicle.

Description

Automobile intelligent accumulator

Technical field

This utility model relates to the electric supply installation of automobile, particularly relates to a kind of automobile intelligent accumulator.

Background technology

Motor vehicles generally is equipped with accumulator, coordinates electromotor (electromotor) to provide electric energy for each electrical equipment on car.Automobile is in use, there will be the accumulator electric-quantity that a variety of causes causes to decline and situation about cannot start-up a car, common examples has: forget to close car light, switch-off listens the electric leakage of sound equipment, thunder and lightning heavy rain acoustic warning all through the night, automobile line, park etc. for a long time.At this moment generally require breakdown lorry to take fire, automobile, extremely inconvenience could be started.

Utility model content

Based on this, it is necessary to provide a kind of and can solve the problem that storage battery energy declines and the automobile intelligent accumulator of problem that cannot start-up a car.

A kind of automobile intelligent accumulator, including battery cell case, set of cells in shell, and the anelectrode that is connected with set of cells and negative electrode, automobile is powered for the circuit connecting automobile or accepts charging by described anelectrode and negative electrode, it is characterized in that, also include reset switch and the auxiliary circuit being located in described shell, described auxiliary circuit includes control unit and controlled switch, described control unit and described anelectrode, negative electrode connects, described control unit is for being monitored the voltage of described set of cells, control described controlled switch when voltage set of cells being detected is less than Second Threshold and disconnect set of cells to described anelectrode and the power supply of control unit, set of cells is made to enter sleep power down mode；Described reset switch one end connects the positive pole of described set of cells, and described reset switch closes when by external force, for making set of cells recover the power supply to described control unit when described set of cells is in sleep power down mode by the Guan Bi of self, controlled described controlled switch by control unit again and recover the set of cells power supply to anelectrode, so that described set of cells is waken up by power down mode of sleeping.

Wherein in an embodiment, described auxiliary circuit also includes manostat, the outfan of described manostat is connected with the supply pin of described control unit, working power is provided for described control unit, the input of described manostat and the first fly-wheel diode connect, described first fly-wheel diode includes that two negative electrodes connect together the diode of the outfan as the first fly-wheel diode, and the anode of one of them diode connects described anelectrode, after the anode described reset switch of series connection of another diode, connect the positive pole of described set of cells；Described reset switch is when being closed by external force, and the positive pole of described set of cells is that the outfan by described manostat provides running voltage to the supply pin of control unit, so that described set of cells is waken up by power down mode of sleeping.

Wherein in an embodiment, described reset switch be pressed after close, be the switch of off-state when not stressing, described control unit be additionally operable to reset switch be in closure state more than the first duration after control described controlled switch disconnect the power supply to anelectrode of the described set of cells, make set of cells enter sleep power down mode.

Wherein in an embodiment, the reset detection foot of described control unit is connected between described reset switch and fly-wheel diode, closure signal is provided to described reset detection foot when described reset switch is closed by external force, described control unit judges the Guan Bi duration of reset switch by described closure signal, when Guan Bi duration reset switch being detected exceedes described first duration, described control unit controls described controlled switch and disconnects so that described set of cells enters sleep power down mode.

Wherein in an embodiment, described auxiliary circuit also includes the over-current detection unit being connected with described control unit, for making described controlled switch disconnect the set of cells power supply to anelectrode when the electric current that described set of cells exports is more than four threshold values；Described control unit also needs to judge that the electric current whether over-current detection unit detects that set of cells export is more than the 4th threshold value after the power-up, if being then judged to short circuit and set of cells not carried out reset and wake up up.

Wherein in an embodiment, described auxiliary circuit also includes that acceleration sensing switchs, described acceleration sensing switch sends cut-off signals when the acceleration detecting self is more than five threshold values to described control unit, described control unit control described controlled switch and disconnect the power supply to anelectrode of the described set of cells.

Wherein in an embodiment, also including extending wire and the reset switch interface being located on described shell, described reset switch is located in the driver's cabin of automobile, accesses described auxiliary circuit by described extending wire and reset switch interface.

Wherein in an embodiment, described controlled switch include magnetic latching relay, first fill can electric capacity, second fill can electric capacity and semibridge system pull-up pull-down circuit, described first fills and can fill energy capacitances in series by electric capacity and second, described second fills energy electric capacity is not connected with the described first one end connection battery electrode filling energy electric capacity, and described first fills energy electric capacity is not connected with the positive pole of the described second described set of cells of one end connection filling energy electric capacity；One end, contact of described magnetic latching relay connects described anelectrode, the other end connects described battery anode, and coil one end of described magnetic latching relay connects first, second and fills the energy junction point of electric capacity, other end connection described semibridge system pull-up pull-down circuit Shang Qiao and the junction point of lower bridge；The pull-up of described semibridge system pull-up pull-down circuit is terminated between described contact and anelectrode, lower pull end is connected described negative electrode, and the coil current potential pull-up of described magnetic latching relay is carried out open and close controlling with drop-down to relay by described semibridge system pull-up pull-down circuit by described control unit.

Wherein in an embodiment, described control unit detects when reset switch closes after the power-up, in addition it is also necessary to judge that battery voltage, whether less than the 7th threshold value, does not carries out reset to set of cells and wakes up up.

Wherein in an embodiment, described controlled switch also includes the second fly-wheel diode, the outfan of described second fly-wheel diode connects described upper pull end, described second fly-wheel diode includes that two negative electrodes connect together the diode of the outfan as the second fly-wheel diode, and the anode of one of them diode connects described anelectrode, the anode of another diode connects the positive pole of described set of cells；Whether described control unit is closed by described reset detection foot detection reset switch after the power-up, if it is not, be then judged to external charge, described control unit controls the closing of contact of described magnetic latching relay thus is charged set of cells.

Wherein in an embodiment, described controlled switch also includes that the 3rd fills energy electric capacity, and the described 3rd fills and can fill energy electric capacity parallel connection with first, second connected by electric capacity.

Above-mentioned automobile storage battery, when battery voltage drops to less than Second Threshold, control unit closes set of cells output, allows set of cells enter sleep power down mode.When needs start vehicle again, it is only necessary to Manual press reset switch once, battery recovery can be allowed normally to work (equivalent of from carrying standby startup power supply function).Take fire without waiting for breakdown lorry, the most both power saving environmental protection, breakdown lorry problem of resource waste can be solved again.

Accompanying drawing explanation

Fig. 1 is the structured flowchart of automobile intelligent accumulator in an embodiment；

Fig. 2 is the structured flowchart of automobile intelligent accumulator in another embodiment；

Fig. 3 is the circuit theory diagrams of automobile intelligent accumulator in an embodiment；

Fig. 4 a～4g is the partial enlarged drawing of Fig. 3 each several part；

Fig. 5 is the circuit theory diagrams of automobile intelligent accumulator in another embodiment；

Fig. 6 is the partial enlarged drawing of controlled switch in Fig. 5.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.

Unless otherwise defined, all of technology used herein and scientific terminology are identical with belonging to the implication that those skilled in the art of the present utility model are generally understood that.It is intended merely to describe the purpose of specific embodiment at term used in the description of the present utility model herein, it is not intended that in limiting this utility model.Term as used herein " and/or " include the arbitrary and all of combination of one or more relevant Listed Items.

Automobile intelligent accumulator of the present utility model, including battery cell case, it is covered on the upper cover of shell, it is positioned at upper cover and the set of cells of shell and the auxiliary circuit being connected with set of cells, (anelectrode connects battery anode for the anelectrode being connected with set of cells in putting in upper cover from upper cover and negative electrode, negative electrode connects battery electrode), and the reset switch being exposed to outside shell.Automobile intelligent accumulator is bi-directionally connected by the circuit of anelectrode and negative electrode with automobile, completes the basic function of charging, electric power storage, power supply.Fig. 1 is the structured flowchart of automobile intelligent accumulator in an embodiment.Automobile intelligent accumulator is electrically connected with by the electromotor of anelectrode with automobile, and auxiliary circuit includes control unit 30 and controlled switch 20.Control unit 30 is connected with anelectrode, negative electrode, for the voltage of set of cells is monitored, control controlled switch 20 when the voltage of set of cells being detected less than Second Threshold and disconnect set of cells to anelectrode and the power supply of control unit 30, make set of cells enter sleep power down mode.Reset switch S one end connects the positive pole B+ of set of cells, and reset switch S closes when by external force (manual operation).When set of cells is in sleep power down mode, driver can be by closed reduction switch S (being located at battery cell case in the present embodiment outer), set of cells is made to recover the power supply to control unit 30, controlled controlled switch 20 by control unit 30 again and recover the set of cells power supply to anelectrode, so that set of cells is waken up by power down mode of sleeping.

Automobile is in use, there will be the accumulator electric-quantity that a variety of causes causes to decline and situation about cannot start-up a car, common examples has: forget to close car light, switch-off listens the electric leakage of sound equipment, thunder and lightning heavy rain acoustic warning all through the night, automobile line, park etc. for a long time.Above-mentioned automobile storage battery, when battery voltage drops to less than Second Threshold, (Second Threshold is an empirical value, an embodiment is set to when battery is full of the 1/4 of voltage wherein), control unit 30 closes set of cells output, allows set of cells enter sleep state.When needs start vehicle again, it is only necessary to Manual press is once arranged on the reset switch S on battery cell case, battery recovery can be allowed normally to work (equivalent of from carrying standby startup power supply function).Take fire without waiting for breakdown lorry, the most both power saving environmental protection, breakdown lorry problem of resource waste can be solved again.

In the embodiment shown in fig. 1, auxiliary circuit also includes capacitor C and capacitance switch Q.Capacitor C, for carrying out composite power supply with battery pack fits, therefore to use jumbo electric capacity, use capacitor array wherein in an embodiment.Capacitor C and capacitance switch Q connects and is followed by anelectrode, and the capacitor C and capacitance switch Q of series connection are in parallel with cell battery pack.Control unit 30 is additionally operable to detect the voltage of set of cells, capacitance switch Q conducting is controlled when the voltage of set of cells is higher than first threshold, make capacitor C access anelectrode and negative electrode to be powered/charge, and control controlled switch 20 and disconnect the power supply/charge that set of cells is carried out by anelectrode；Control unit 30 controls controlled switch 20 and closes when the voltage of anelectrode is less than the first voltage, thus recovers the power supply to anelectrode of the described set of cells, then by disconnecting capacitance switch Q, capacitor C is separated with negative electrode, thus the discharge and recharge of stopping capacitor C.Wherein, first threshold is an empirical value, is i.e. judged to that electromotor disconnects the connection of set of cells and anelectrode to set of cells after fully charged.First voltage can be an empirical value, it is also possible to is the current voltage of set of cells, i.e. after flameout of automobile engine, the voltage of capacitor C can decline, by the setting to the first voltage so that after the voltage of capacitor C drops to a certain degree, circuit switches to by battery-powered.

Above-mentioned automobile intelligent accumulator is by set of cells shnt capacitor compound use, it is possible to reduce battery output internal driving.When electromotor starts, set of cells exports energy with capacitor is used in parallel simultaneously, and the accumulator after parallel connection is more beneficial for the work of electromotor big electric current short time ignition start.Control unit can disconnect after set of cells is fully charged, set of cells is made to separate with anelectrode, only automobile engine (electromotor) is coordinated to be that full car is powered by capacitor after separation, when engine stop generates electricity (automobile flameout), after judging that condenser voltage is less than the first voltage, switch to set of cells and output power supply.This ingehious design makes set of cells be used alternatingly under different conditions with capacitor, extends for battery life and provides good condition, has basically reached one accumulator of a car, until vehicle subscription rate.And traditional vehicle uses accumulator within 10 years, to take around replacing 4 times, the environmental benefit using above-mentioned automobile intelligent accumulator is obvious.

Wherein in an embodiment, cell battery pack uses ferric phosphate lithium cell as main energy-accumulation material, replaces traditional lead-acid accumulator, has long-life, light-weighted advantage, and environmental benefit is obvious.

The most convenient owing to being arranged on battery cell case by reset switch S, reset switch S could be operated by driver's bonnet to be opened.Wherein in an embodiment, reset switch S can be arranged in driver's cabin, and be connected to automobile intelligent accumulator by an extended line (electric wire).Correspondingly, battery cell case arranges reset switch interface (can be socket, extended line end relative set plug carries out grafting), by reset switch interface, reset switch S is accessed the auxiliary circuit in shell.

Seeing Fig. 2, in this embodiment, auxiliary circuit also includes the over-current detection unit 40 being connected with control unit 30.Electric current for exporting in set of cells makes controlled switch 20 disconnect the set of cells power supply to anelectrode when being more than four threshold values.Control unit 30 also needs to judge that the electric current whether over-current detection unit detects that set of cells export is more than the 4th threshold value after the power-up, the most then be judged to short circuit and set of cells do not carried out reset and wake up up.4th threshold value is an empirical value, arranges the 4th threshold value and circuit was carried out stream and short-circuit protection.When the circuit of set of cells external connection is short-circuited, over-current detection unit 40 can control controlled switch 20 and close accumulator output in time, reduces the probability causing vehicle to burn because of line short, support personnel and the safety of vehicle.

Fig. 3 is the circuit theory diagrams of automobile intelligent accumulator in an embodiment; Fig. 4 a～4g is the partial enlarged drawing of Fig. 3 each several part, including set of cells 110, capacitor 120, super-charge super-discharge protection circuit 10, controlled switch 20, control unit 30, over-current detection unit 40, sensing unit 50, reset unit 60, condition indication circuit 70, manostat 80 and capacitance switch 122.In the embodiment shown in fig. 3, control unit 30 is single-chip microcomputer U8.Single-chip microcomputer U8 coordinates super-charge super-discharge protection circuit 10 that set of cells 110 is carried out super-charge super-discharge protection.

See Fig. 4 e, capacitance switch 122 is connected with capacitor 120, capacitance switch 122 includes that N-channel MOS FET Q2, the grid of MOSFET Q2 are connected with the pin 9 of the single-chip microcomputer U8 in control unit 30, and the source electrode of metal-oxide-semiconductor Q2 connects negative electrode, drain electrode connects the electric capacity C1 negative pole in capacitor array 120.Control unit 30 carries out intermittent scanning to the voltage of set of cells 110, when recording battery voltage and continuing within a certain period of time slowly to decline, it is judged that vehicle is parked state, controls capacitance switch 122 and disconnects the capacitor 120 power supply to anelectrode.Wherein in an embodiment, when being that (or when scanning reaches certain number of times) is consecutively detected the voltage decline of set of cells 110 voltage and fall is less than three threshold values in the second duration every time, control capacitance switch 122 and disconnect the capacitor 120 power supply to anelectrode.Wherein the second duration and the 3rd threshold value are empirical value.

When vehicle is parked state, capacitor 120 is disconnected, it is possible to reduce capacitor 120 because of have influence on from electric leakage set of cells 110 deposit electricity the time.And it is not involved in work after disconnecting because of capacitor 120, it also is able to extend the service life of capacitor simultaneously.

In the embodiment shown in fig. 3, single-chip microcomputer U8 is while set of cells 110 enters sleep state, and capacitance switch 122 to be controlled disconnects, to save electric energy further.

See Fig. 4 f, manostat 80 includes voltage stabilizing chip U7, the output pin OUT (i.e. the outfan of manostat 80) of voltage stabilizing chip U7 provides stable 5V DC voltage, it is provided that to some components and parts in auxiliary circuit, provide working power including the supply pin VDD for single-chip microcomputer U8.The input pin IN (i.e. the input of manostat 80) of voltage stabilizing chip U7 is connected with the first sustained diode 1, first sustained diode 1 includes that two negative electrodes connect together the diode as D1 outfan, and the anode of one of them diode connects anelectrode VCC-OUT, after the anode series connection reset switch S2 of another diode, connect the positive pole B+ of set of cells.When reset switch S2 is artificially closed, the output pin OUT of voltage stabilizing chip U7 powers to the supply pin VDD of single-chip microcomputer U8, so that set of cells 110 is waken up by sleep power down mode.

Wherein in an embodiment, reset switch S2 be pressed after close, be the switch of off-state when not stressing, such as button, touch-switch, have the contact switch etc. of spring reset structure.Therefore by pressing reset switch S2 carry out reset operation time be by short by.

Wherein in an embodiment, control unit 30 is additionally operable to be in closure state at reset switch S2 and controls controlled switch 20 more than the first duration (i.e. pressing the first duration not let go) afterwards and disconnect the set of cells 110 power supply to anelectrode, makes set of cells enter sleep power down mode.When thinking again to start vehicle, it is only necessary to press reset switch S2 and set of cells 110 can be allowed to recover normally work.Long make set of cells 110 enter dormant function by reset switch S2 to be applicable to the situation that vehicle needs to park for a long time, it is to avoid cause battery damage because of excessive power shortage.First duration is an empirical value, it is therefore an objective to the wake operation that needs " long press " and driver to allow set of cells 110 recover normally to work (short press) is distinguished mutually, wherein in an embodiment first time a length of 10 seconds.In other embodiments, it is also possible to reset switch S2 and control set of cells 110 are entered dormant switch and independently arrange.

In the present embodiment, the reset detection foot 3 of control unit 30 is connected between reset switch S2 and sustained diode 1 (Switch port).Closure signal is provided to reset detection foot 3 when reset switch S2 is closed by external force, control unit 30 judges the Guan Bi duration of reset switch S2 by this closure signal, when detecting that the Guan Bi duration of reset switch S2 is more than the first duration, control unit 30 controls controlled switch 20 and disconnects so that set of cells 110 enters sleep power down mode.In the present embodiment, reset unit 60 also includes being connected in series in sustained diode 1 and connects resistance R18, the R19 between diode anode and the negative electrode of reset switch S2, and closure signal is the high level signal obtained after divider resistance R19 dividing potential drop.

Automobile intelligent accumulator also includes sensing unit 50.See Fig. 4 g, in this embodiment, sensing unit 50 includes that acceleration sensing switchs S1, acceleration sensing switch S1 is closure state time flat, disconnect when the acceleration detecting self is more than five threshold values, control unit 30 (for 2 feet of single-chip microcomputer U8 in the present embodiment) receives cut-off signals (i.e. signal is that high level becomes 0), control unit 30 control controlled switch 20 and disconnect the set of cells 110 power supply to anelectrode.In this embodiment, sensing unit 50 also includes that one and resistance R16 is connected and connects the critesistor t of negative electrode, 2 heels of single-chip microcomputer U8 can obtain the temperature of critesistor t according to the pressure drop got on critesistor t, thus the state of temperature of corresponding component/position in learning automobile.

When vehicle overturn, weightlessness of falling or battery by strong shock etc. dangerous time, acceleration sensing switch S1 can be disconnected, and closes battery output after control unit 30 perception in time, it is to avoid after accident occurs, leakage of oil causes secondary injury again because wire short-circuiting is on fire.

See Fig. 4 d, controlled switch 20 include magnetic latching relay K1, first fill can electric capacity C2, second fill can electric capacity C3 and semibridge system pull-up pull-down circuit.In the present embodiment, semibridge system pull-up pull-down circuit includes PMOS Q1 being serially connected and NMOS tube Q3 (i.e. PMOS Q1 connects the drain electrode of NMOS tube Q3).First fills energy electric capacity C2 and second fills and can connect by electric capacity C3, and second fills energy electric capacity C3 is not connected with the negative pole of the described first one end connection set of cells 110 filling energy electric capacity, and first fills and can be not connected with the second one end connection battery anode B+ filling energy electric capacity C3 by electric capacity C2.One end, contact of magnetic latching relay K1 connects anelectrode, the other end connects battery anode B+.Coil one end of magnetic latching relay K1 connects C2, C3 junction point, and the other end connects semibridge system pull-up pull-down circuit Shang Qiao and the junction point (i.e. PMOS Q1 and the drain electrode of NMOS tube Q3) of lower bridge.The upper pull end (source electrode of PMOS Q1) of semibridge system pull-up pull-down circuit is connected between the contact of magnetic latching relay K1 and anelectrode, lower pull end is connected negative electrode.The coil current potential pull-up of magnetic latching relay K1 is carried out open and close controlling with drop-down to relay by semibridge system pull-up pull-down circuit by control unit 30.

In the present embodiment, it is that energy electric capacity C2 is filled in employing first, the second scheme filling energy electric capacity C3 and semibridge system pull-up pull-down circuit carries out open and close controlling to magnetic latching relay K1.In other embodiments, it would however also be possible to employ the mode of full-bridge carries out open and close controlling to magnetic latching relay K1.

In Fig. 4 d illustrated embodiment, controlled switch 20 also includes sustained diode 2, resistance R1, R4, R20.Electric capacity C2 and C3 series connection is followed by battery anode B+, and connect an anode (2 foot) and the contact of magnetic latching relay K1 of sustained diode 2, the contact other end of magnetic latching relay K1 is connected to the negative pole of anelectrode VCC-OUT, electric capacity C3 and connects battery electrode B-.The source electrode of metal-oxide-semiconductor Q3 connects battery electrode B-by resistance R20, drain electrode connects drain electrode and one end of magnetic latching relay K1 coil of metal-oxide-semiconductor Q2, the other end of magnetic latching relay K1 coil is received between electric capacity C2 and C3, connects the grid of metal-oxide-semiconductor Q1 after gate series resistance R4 of metal-oxide-semiconductor Q3, R1.It is VM port between resistance R4 and R1, signal is delivered to 6 feet of single-chip microcomputer U8.The source electrode of metal-oxide-semiconductor Q1 connects the negative electrode of sustained diode 2.

Metal-oxide-semiconductor Q1 and Q3 defines semibridge system previous-next puller circuit, and resistance R20 uses the resistance (such as 2 ohm) that a resistance is the least, and effect is the dash current offset and be simultaneously in the moment opened at metal-oxide-semiconductor Q1 and Q3 switch transition phase.In order to reduce circuit energy consumption, extending parking and treat ETAD expected time of arrival and departure, magnetic latching relay K1 selected by the relay in the present embodiment, has only to a pulse voltage, subsequently by the duty of permanent magnet guard relay during driving.

Electric capacity C2 and C3 originates as the pulse energy of magnetic latching relay K1, when port VM is low level, metal-oxide-semiconductor Q1 conducting, Q3 close, the one end of the magnetic latching relay K1 coil being connected between metal-oxide-semiconductor Q1 and Q3 is essentially pulled up to high potential, the magnetic latching relay K1 coil other end being connected between electric capacity C2 and C3 is 0V, thus defines forward drive.Electric capacity C3 is charged through the coil of magnetic latching relay K1 by the positive voltage from sustained diode 2 through metal-oxide-semiconductor Q1 again subsequently, and in charging process, the both positive and negative polarity current potential of C3 is risen to VDD by 0V, and electric capacity C2 both positive and negative polarity voltage is 0.When port VM is in high level, metal-oxide-semiconductor Q3 conducting, Q1 close, the energy being stored in electric capacity C3 is drop-down and form loop to battery electrode B-by metal-oxide-semiconductor Q3 by magnetic latching relay K1, add the both positive and negative polarity of electric capacity C2 to be charged between 0V to VDD accumulation of energy by 0V, thus drive magnetic latching relay K1 reverse impulse to work.

The effect of sustained diode 2 is after relay K 1 is disconnected, when set of cells 110 is in low-energy state and cannot resume work voluntarily, need to supplement energy from outside electric energy (such as automobile engine) by anelectrode VCC-OUT, the most external positive voltage provides energy by 3 feet of sustained diode 2 to MOS pipe Q1, by single-chip microcomputer U8, the voltage scanning of capacitor 120 positive pole VDD (current potential is equal with anelectrode VCC-OUT) be may determine that whether external charger simultaneously, perceive external charge source stable after, single-chip microcomputer U8 sends instruction by 12 feet to relay K 1, connect magnetic latching relay K1 set of cells 110 is charged.

Wherein in an embodiment, control unit 30 detects when reset switch S2 closes after the power-up, in addition it is also necessary to judge that the voltage of set of cells 110, whether less than the 7th threshold value, does not carries out reset to set of cells 110 and wakes up up.

Set of cells 110 has two kinds of wake-up modes upon entering the sleep state, and a kind of mode is to be waken up up by reset switch S2 by short, and another kind is to be charged to set of cells 110 to anelectrode VCC-OUT and negative electrode external power supply.It is the most short-circuit that single-chip microcomputer U8 first passes through over-current detection unit 40 decision circuitry after the power-up, if not, then detect whether reset switch S2 closes by reset detection foot 3, if reset switch S2 closes (reset detection foot 3 receives closure signal), then it is judged to that reset wakes up up, if the voltage of set of cells 110 is higher than the 7th threshold value, then single-chip microcomputer U8 controls controlled switch 20 and capacitance switch 122 closes.If reset switch S2 is not closed, then explanation has been external power supply is charged, and now single-chip microcomputer U8 controls capacitance switch 122 and closes, and when detecting that the voltage VDD of capacitor 120 is higher than eight threshold values, controls controlled switch 20 and close, be charged set of cells 110.

In the embodiment shown in fig. 3, automobile intelligent accumulator also includes condition indication circuit 70, including showing the light emitting diode of multiple color, for indicating the closed mode of set of cells 110.In the present embodiment, being to represent that set of cells 110 normal Standby is closed with green light, red light instruction output short-circuit is closed, and amber light instruction battery light current is closed.Indicating circuit 70 is to carry out light emitting control by control unit 30.When set of cells 110 is waken up up, if the voltage of set of cells 110 is less than the 7th threshold value, reminded by amber light while set of cells 110 not being waken up up.

Refer to Fig. 4 b, battery protection chip U3 and monitored the voltage of battery by VDD foot 3 and VSS foot 5, then by CO pin and DO pin one nor gate U1 of connection, controlled switch 20 is controlled.What CO pin and DO pin respectively exported is the pulldown signal of single or in parallel many.In this embodiment, the battery of each series connection is equipped with a battery protection chip accordingly；In other embodiments, set of cells 110 can also include many Battery packs, connects between group with group, each cell parallel in every Battery pack, is then that each Battery pack is equipped with a battery protection chip.

Automobile intelligent accumulator also includes the battery voltage balancing circuit 12 being connected with super-charge super-discharge protection circuit 10 and set of cells 110, and battery voltage balancing circuit 12 balances the voltage of each battery when the cell voltage in super-charge super-discharge protection circuit 10 detects set of cells 110 is more than six threshold values.The chip that the value of the 6th threshold value uses with super-charge super-discharge protection circuit 10 is relevant.

See Fig. 4 b, in this embodiment, battery voltage balancing circuit 12 includes switching tube (for N-channel MOS FET Q4 in the present embodiment), the input (drain electrode of metal-oxide-semiconductor) of switching tube connects the positive pole of a battery in set of cells 110, the outfan (source electrode of metal-oxide-semiconductor) of switching tube connects the positive pole of another battery connected with the negative pole of this battery, the control end (grid of metal-oxide-semiconductor) of switching tube is connected with the electric quantity balancing pin CB of battery protection chip U3, battery protection chip U3 controls switching tube when the input and outfan electric potential difference switching tube being detected is more than six threshold values by electric quantity balancing pin and turns on.

Fig. 5 is the circuit theory diagrams of auxiliary circuit in another embodiment, and the function of a part of logical judgment and super-charge super-discharge protection circuit 10, relative to the part being mainly improved by controlled switch 20 of embodiment illustrated in fig. 3, has the most also been integrated in single-chip microcomputer by it.Please also refer to Fig. 6, emphatically controlled switch is introduced.In this embodiment, controlled switch also includes that the 3rd fills energy electric capacity C1.3rd fill can electric capacity C1 fill with first connected can electric capacity C17, second fill can electric capacity C39 parallel connection.Arranging the 3rd and filling electric capacity C1 can be again to drive after short circuit magnetic latching relay K1 to provide enough energy.

Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, all it is considered to be the scope that this specification is recorded.

Embodiment described above only have expressed several embodiments of the present utility model, and it describes more concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, for the person of ordinary skill of the art, without departing from the concept of the premise utility, it is also possible to make some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, the protection domain of this utility model patent should be as the criterion with claims.

Claims (10)

1. an automobile intelligent accumulator, including the set of cells in battery cell case, shell and and battery Automobile is entered by anelectrode and negative electrode, described anelectrode and negative electrode that group connects for the circuit connecting automobile Row is powered or accepts charging, it is characterised in that also include reset switch and the auxiliary electricity being located in described shell Road, described auxiliary circuit includes control unit and controlled switch, described control unit and described anelectrode, negative Electrode connects, and described control unit is for being monitored, when set of cells being detected the voltage of described set of cells Voltage less than Second Threshold time control described controlled switch disconnect set of cells to described anelectrode and control unit Power supply, make set of cells enter sleep power down mode；Described reset switch one end is just connecting described set of cells Pole, and described reset switch closes when by external force, for when described set of cells is in sleep power down mode Make set of cells recover the power supply to described control unit by the Guan Bi of self, then controlled institute by control unit State controlled switch and recover the set of cells power supply to anelectrode, so that described set of cells is by power down mode of sleeping It is waken up.

Automobile intelligent accumulator the most according to claim 1, it is characterised in that described auxiliary circuit is also Including manostat, the outfan of described manostat is connected with the supply pin of described control unit, for described control Unit provides working power, the input of described manostat and the first fly-wheel diode to connect, and described first continues Stream diode includes that two negative electrodes connect together the diode of the outfan as the first fly-wheel diode, and its In the anode of a diode connect described anelectrode, the anode of another diode is connected described reset switch The positive pole of the described set of cells of rear connection；Described reset switch when being closed by external force, the positive pole of described set of cells It is that the outfan by described manostat provides running voltage to the supply pin of control unit, so that described Set of cells is waken up by power down mode of sleeping.

Automobile intelligent accumulator the most according to claim 2, it is characterised in that described reset switch is Closing, when not stressing be the switch of off-state after being pressed, described control unit is additionally operable at reset switch It is in closure state more than controlling the disconnection described set of cells confession to anelectrode of described controlled switch after the first duration Electricity, makes set of cells enter sleep power down mode.

Automobile intelligent accumulator the most according to claim 3, it is characterised in that described control unit Reset detection foot is connected between described reset switch and fly-wheel diode, when described reset switch is closed by external force There is provided closure signal to described reset detection foot, by described closure signal, described control unit judges that reset is opened The Guan Bi duration closed, when Guan Bi duration reset switch being detected exceedes described first duration, described control Unit controls described controlled switch and disconnects so that described set of cells enters sleep power down mode.

Automobile intelligent accumulator the most according to claim 2, it is characterised in that described auxiliary circuit is also Including the over-current detection unit being connected with described control unit, it is more than for the electric current exported in described set of cells Described controlled switch is made to disconnect the set of cells power supply to anelectrode during four threshold values；Described control unit is powering on After also need to judge that the electric current whether over-current detection unit detects that set of cells export is more than the 4th threshold value, if Then it is judged to short circuit and set of cells is not carried out reset and wake up up.

Automobile intelligent accumulator the most according to claim 1, it is characterised in that described auxiliary circuit is also Switching including acceleration sensing, described acceleration sensing switch is detecting that the acceleration of self is more than the 5th threshold Send cut-off signals to described control unit during value, described control unit control described controlled switch and disconnect institute State the set of cells power supply to anelectrode.

Automobile intelligent accumulator the most according to claim 1, it is characterised in that also include extending wire With the reset switch interface being located on described shell, described reset switch is located in the driver's cabin of automobile, is passed through Described extending wire and reset switch interface access described auxiliary circuit.

Automobile intelligent accumulator the most according to claim 5, it is characterised in that described controlled switch bag Include magnetic latching relay, first fill can electric capacity, second fill can electric capacity and semibridge system pull-up pull-down circuit, described First fill can electric capacity and second fill can capacitances in series, described second fill can electric capacity be not connected with described first fill can electricity The one end held connects battery electrode, and described first fills and can be not connected with described second one end filling energy electric capacity by electric capacity Connect the positive pole of described set of cells；One end, contact of described magnetic latching relay connect described anelectrode, another End connects described battery anode, and coil one end of described magnetic latching relay connects first, second and fills energy electricity The junction point, the other end that hold connect described semibridge system pull-up pull-down circuit Shang Qiao and the junction point of lower bridge；Described The pull-up of semibridge system pull-up pull-down circuit is terminated between described contact and anelectrode, lower pull end is connected described negative Electrode, described control unit pulls up pull-down circuit by the coil of described magnetic latching relay by described semibridge system Current potential pull-up carries out open and close controlling with drop-down to relay.

Automobile intelligent accumulator the most according to claim 8, it is characterised in that described controlled switch is also Including the second fly-wheel diode, the outfan of described second fly-wheel diode connects described upper pull end, and described the Two fly-wheel diodes include that two negative electrodes connect together the diode of the outfan as the second fly-wheel diode, And the anode of one of them diode connects described anelectrode, the anode of another diode connects described battery The positive pole of group；Whether described control unit is closed by described reset detection foot detection reset switch after the power-up Closing, if it is not, be then judged to external charge, described control unit controls the contact of described magnetic latching relay and closes Close thus set of cells is charged.

Automobile intelligent accumulator the most according to claim 9, it is characterised in that described controlled switch Also including that the 3rd fills energy electric capacity, the described 3rd fills and can fill energy electric capacity parallel connection with first, second connected by electric capacity.