CN207968054U - A kind of automobile starting storage battery - Google Patents
A kind of automobile starting storage battery Download PDFInfo
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- CN207968054U CN207968054U CN201721849800.6U CN201721849800U CN207968054U CN 207968054 U CN207968054 U CN 207968054U CN 201721849800 U CN201721849800 U CN 201721849800U CN 207968054 U CN207968054 U CN 207968054U
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- 230000008859 change Effects 0.000 claims description 15
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 11
- 238000009413 insulation Methods 0.000 claims description 11
- 239000000084 colloidal system Substances 0.000 claims description 10
- GELKBWJHTRAYNV-UHFFFAOYSA-K lithium iron phosphate Chemical compound [Li+].[Fe+2].[O-]P([O-])([O-])=O GELKBWJHTRAYNV-UHFFFAOYSA-K 0.000 claims description 9
- 230000002459 sustained effect Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract 2
- 239000007858 starting material Substances 0.000 description 24
- 239000002253 acid Substances 0.000 description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 12
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 12
- 229910052744 lithium Inorganic materials 0.000 description 12
- 238000000034 method Methods 0.000 description 10
- 230000006872 improvement Effects 0.000 description 8
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- 229910052751 metal Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 101001068634 Homo sapiens Protein PRRC2A Proteins 0.000 description 3
- 102100033954 Protein PRRC2A Human genes 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
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- 230000005856 abnormality Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 239000012782 phase change material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of automobile starting storage batterys, including：First accumulator, anode are connect with the first pole, and cathode is connected to common end；Second accumulator, anode are connect with the second pole, and cathode is connected to common end；Diode, anode are connect with the second pole, and cathode is connect with the first pole；First switch is connected between the anode of the first accumulator and the first pole/is connected between the cathode and common end of the first accumulator；Controller is separately connected with the anode and first switch of the first accumulator；When controller detects that the voltage value of the first accumulator is less than reserved voltage threshold in duration threshold value, then first switch disconnection is controlled, the first accumulator reserves spare electricity；Controller then controls first switch connection when detecting the spare electric quantity signal of triggering, and the first accumulator provides spare electricity.The automobile starting storage battery of the utility model can effectively extend the service life of startup power supply, reduce cost, and have higher reliability.
Description
Technical Field
The utility model relates to a power technical field especially relates to an automobile starting storage battery.
Background
As shown in fig. 1, the conventional power supply system for an automobile mainly includes a battery and a generator, wherein the battery is an important component of automobile electrical appliances, and has a main function in the automobile: when the engine is started, power is supplied to a starter and an ignition system; when the engine runs at low speed, the power is supplied to the electric equipment and the magnetic field winding of the generator; when the engine runs at medium or high speed, the electric energy generated by the generator is converted into chemical energy to be stored; when the generator is overloaded, the vehicle-mounted generator is assisted to supply power to the electric equipment.
At present, the automobile industry basically adopts a lead-acid storage battery with lower cost as an automobile storage battery, but the lead-acid storage battery has the following defects: (1) the charging and discharging times of the lead-acid storage battery are generally only 300-500 times, so that the service life of the lead-acid storage battery is 2-3 years, and the service life is short; (2) the lead-acid storage battery has the advantages that the battery active matter of the lead-acid storage battery contains impurities, the purity of the electrolyte is not high, or the lead-acid storage battery can cause the self-discharge of the lead-acid storage battery to be serious after being placed for a long time; (3) the electrolyte in the lead-acid storage battery is usually prepared from pure sulfuric acid and distilled water according to a certain proportion, and the electrolyte has the risk of icing in a low-temperature environment, so that the lead-acid storage battery cannot resist low temperature.
The above defects of the lead-acid storage battery enable the existing automobile starting storage battery to have the following technical problems: (1) the service life of the conventional automobile is usually 10-15 years, the service life of a lead-acid storage battery is 2-3 years, the storage battery needs to be replaced 3-5 times in the service cycle of the automobile, the replacement frequency is high, the use cost is increased, the replacement operation of the storage battery is very troublesome, and the use experience of a user is influenced; (2) the self-discharge of the lead-acid storage battery can reduce the storage capacity of the battery, so that the electric quantity of an automobile starting storage battery is insufficient after the automobile is stopped for a long time, and the automobile starting storage battery cannot supply power to a starter; (3) the lead-acid storage battery is not resistant to low temperature, so that the automobile starting storage battery cannot start an engine in a low-temperature environment.
In order to extend the service life of an automobile starting battery, it has been proposed in the prior art to replace the lead-acid battery with a high-performance lithium titanate battery. However, since lithium titanate batteries are very expensive, if the lithium titanate batteries are directly used for replacing lead-acid batteries, the cost of starting the automobile is greatly increased.
At utility model patent application CN104052140A, which is disclosed in 2014, 9, 17, a vehicle-mounted power supply system is provided, the system is composed of a first storage battery, a second storage battery, a connection switch and a switch controller, the first storage battery and the second storage battery are connected in parallel with a rotary machine, during the starting of the engine of the rotary machine or during the output of an auxiliary engine of the rotary machine, the switch controller controls the connection switch to be in a current cut-off state, so that the second storage battery is disconnected, and further the voltage fluctuation of a connection line on the second storage battery side of the connection switch is suppressed. Although the vehicle-mounted power supply system can promote the stable operation of the electrical load of the storage battery, the vehicle-mounted power supply system still has the problems of short service life, incapability of providing emergency starting power supply and low temperature resistance.
Utility model patent application CN106558896A, published in 2017, 4/5/discloses a battery management system for a vehicle and a control method thereof, the system mainly comprising a first battery, a second battery, a sensing unit, a first relay, a second relay and a controller, wherein the first relay is connected between the first battery and the controller, the second relay is connected between the second battery and the relay, the sensing unit is configured to measure the current and voltage of the first battery and the second battery; the controller controls ignition of the vehicle during overdischarge of the first battery to prevent additional discharge of the first battery. The system can retain the electric quantity in the first battery to a certain extent, but the system still has the problems of short service life and low temperature resistance.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model discloses a car starting storage battery can effectively prolong starting power supply's life, has higher reliability simultaneously to reduce the cost of car starting storage battery.
In order to solve the technical problem, the utility model discloses a vehicle starting storage battery, include:
the positive electrode of the first storage battery is connected with the first pole, and the negative electrode of the first storage battery is connected to the common end;
the anode of the second storage battery is connected with the second pole column, and the cathode of the second storage battery is connected to the common terminal;
the anode of the diode is connected with the second pole column, and the cathode of the diode is connected with the first pole column;
the first switch is connected between the positive electrode of the first storage battery and the first pole, or between the negative electrode of the first storage battery and the common end;
a controller connected to the positive electrode of the first battery and the first switch, respectively;
the controller is configured to: when the voltage value of the first storage battery is detected to be smaller than the reserved voltage threshold value within the continuous time threshold value, controlling the first switch to be switched off so as to enable the first storage battery to reserve the reserved standby power consumption;
when the controller detects that the standby power signal is triggered, the first switch is controlled to be switched on, so that the first storage battery provides standby power.
As an improvement of the above scheme, the first storage battery comprises a storage battery with long service life and low temperature resistance; the second storage battery comprises a silicate storage battery/a colloid storage battery/a lithium iron phosphate storage battery.
As an improvement of the scheme, the surfaces of the first storage battery and the second storage battery are sequentially provided with a phase change layer and a heat insulation layer from inside to outside.
As an improvement of the above scheme, the trigger standby power signal is generated when the ignition switch is switched from the OFF gear to the ACC gear or the ON gear.
As the improvement of above-mentioned scheme, the automobile staring storage battery still includes:
the manual switch is used for generating the trigger standby power quantity signal;
the trigger switch is connected with the controller, so that the controller can detect the trigger standby power quantity signal.
As the improvement of above-mentioned scheme, the automobile staring storage battery still includes:
a second switch connected between the positive electrode of the first battery and the positive electrode of the second battery;
the first pole is connected with a generator to charge the first storage battery and the second storage battery; in the charging mode, if the voltage of the first storage battery reaches a preset voltage threshold, the second switch is switched on to enable the generator to charge the second storage battery.
As the improvement of above-mentioned scheme, the automobile staring storage battery still includes:
the positive phase input end of the first voltage comparator is connected with the positive electrode of the first storage battery, the negative phase input end of the first voltage comparator inputs a preset voltage threshold value, and the output end of the first voltage comparator is connected with the second switch;
in a charging mode, if the voltage of the first storage battery reaches the preset voltage threshold, the first voltage comparator drives the second switch to be switched on.
As an improvement of the above aspect, the second switch includes:
a first NMOS transistor and a first PMOS transistor; wherein,
the grid electrode of the first NMOS tube is connected with the output end of the first voltage comparator through a resistor R1, the source electrode of the first NMOS tube is connected with the negative electrode of the first storage battery, the drain electrode of the first NMOS tube is connected with the grid electrode of the second PMOS tube through a resistor R2, and a resistor R3 is connected between the source electrode and the grid electrode;
the source electrode of the first PMOS tube is connected with the anode of the first storage battery, the drain electrode of the first PMOS tube is connected with the anode of the second storage battery, and the grid electrode of the first PMOS tube is connected with the source electrode of the first PMOS tube through a resistor R4.
As the improvement of above-mentioned scheme, the automobile staring storage battery still includes:
the second voltage comparator, the photoelectric coupler and the second NMOS tube; wherein,
the positive phase input end of the second voltage comparator inputs the reserved voltage threshold, the negative phase input end of the second voltage comparator is connected with the positive electrode of the first storage battery, and the output end of the second voltage comparator is connected with the grid electrode of the second NMOS tube;
the drain electrode of the second NMOS tube is connected with the anode of the first storage battery, and the source electrode of the second NMOS tube is connected with the cathode of the first storage battery;
a first connecting pole at the input side of the photoelectric coupler is connected with the controller, a second connecting pole at the input side is connected to the common end, a first connecting pole at the output side is connected with the grid electrode of the second NMOS tube, and a second connecting pole at the output side is connected with the negative electrode of the first storage battery;
the controller outputs a PWM signal to the photocoupler to detect a voltage of the first battery within a sustained time threshold.
As a modification of the above, the first storage battery includes a plurality of single cells connected in series;
the automobile starting battery comprises a charge equalization device connected between the first storage battery and the controller;
in the charging mode, when the voltage of any single battery is smaller than that of other single batteries, the controller controls the charging equalization device to charge the any single battery, and further charging equalization is achieved. Compared with the prior art, the utility model discloses a car starts storage battery has following beneficial effect:
(1) the utility model adopts the lithium titanate storage battery as the first storage battery and the silicate storage battery/colloid battery/lithium iron phosphate storage battery as the second storage battery, and the service life of the lithium titanate storage battery is far longer than that of the existing lead-acid storage battery, and the service life of the silicate storage battery/colloid battery/lithium iron phosphate storage battery is longer than that of the lead-acid storage battery, so that the service life of an automobile starting storage battery can be effectively prolonged, the storage battery is prevented from being frequently replaced by a user, and the use experience of the user is improved;
(2) the lithium titanate storage battery, the silicate storage battery and the colloid battery adopted by the utility model have good low temperature resistance, so that the automobile starting storage battery of the utility model can realize automobile starting in a low temperature environment; in addition, the first storage battery and the second storage battery are provided with the phase change layer and the heat insulation layer, so that the low-temperature resistance of the automobile starting storage battery can be further improved;
(3) in the utility model, the first storage battery 1 adopts a lithium titanate storage battery with better performance, the second storage battery adopts a silicate storage battery/colloid battery/lithium iron phosphate storage battery with better performance and lower price, and the reasonable collocation of the first storage battery and the second storage battery ensures that the utility model can also reduce the cost of the automobile starting storage battery while prolonging the service life of the automobile starting storage battery;
(4) the utility model discloses an automobile starting storage battery mainly supplies power to the starter through the first battery, supplies power to the consumer through the second battery, and both function division are clear;
(5) the utility model discloses an automobile starting storage battery can adopt first battery alone to provide starting current for the starter or for the power supply of external consumer to and adopt the second battery alone to provide starting current for the starter or for the power supply of external consumer, first battery 1 and second battery can work independently, when making any battery break down or become invalid, another battery can both ensure the engine start, can effectively improve the reliability of automobile starting storage battery;
(6) when the voltage of the first storage battery is smaller than the reserved voltage threshold value, the automobile starting storage battery controls the first switch to be switched off, so that the first storage battery is in a protection state, and starting electric quantity is reserved for automobile emergency starting, so that the automobile starting storage battery of the utility model still retains electric quantity required by automobile starting under long-time placement or emergency conditions, and the automobile can be ensured to be started in an emergency; the controller can be used for detecting the trigger standby power consumption of the ignition switch, an engine cover does not need to be opened, and the use experience of a user is improved;
(7) the utility model provides a car start storage battery can utilize first battery and second battery to provide starting current for the starter of car simultaneously for starting current is strong, can improve the stationarity that the engine started.
Drawings
Fig. 1 is a schematic structural diagram of a power supply system of a vehicle in the prior art.
Fig. 2 is the structure diagram of the embodiment 1 of the automobile starting battery of the utility model.
Fig. 3 is the structure schematic diagram of the automobile starting battery comprising the phase change layer and the thermal insulation layer.
Fig. 4 is a schematic structural diagram of a second switch in embodiment 3 of the starting battery for an automobile of the present invention.
Fig. 5 is a schematic structural diagram of the charge equalization device in the starting battery of the vehicle of the present invention.
Fig. 6 is a schematic structural diagram of the first switch in embodiment 2 of the starting battery for an automobile of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be embodied in many other forms without departing from the spirit or essential characteristics thereof, and it should be understood that the invention is not limited to the specific embodiments disclosed below.
The technical solution of the present invention will be described in detail and fully with reference to the following embodiments and accompanying drawings.
Example 1
As shown in fig. 2, the structure of the starting battery of the present invention is schematically illustrated.
This automobile starting storage battery includes: the method comprises the following steps: the device comprises a first storage battery 1, a second storage battery 2, a diode 3, a first switch 4, a controller 5 and a second switch 6, wherein the anode of the first storage battery 1 is connected with a first pole BAT1, the anode of the first storage battery 1 is also connected with the anode of the second storage battery 2 through the second switch 6, and the cathode of the first storage battery 1 is connected with a common terminal GND through the first switch 4; the anode of the second storage battery 2 is connected with the second pole BAT2, and the cathode of the second storage battery 2 is connected to the common terminal GND; the cathode of the diode 3 is connected with the first pole BAT1, and the anode of the diode 3 is connected with the second pole BAT 2; the controller 5 is connected to the positive electrode of the first battery 1 and the first switch 4, respectively. The utility model discloses an automobile starting storage battery has following two kinds of connected modes:
the first method is as follows: respectively connecting the first pole BAT1 with a starter, an automobile ignition system and an automobile oil supply system so as to enable the first storage battery 1 to supply power to the starter; connecting the second pole BAT2 with the electric equipment, so that the second storage battery 2 supplies power to the electric equipment, and assists the first storage battery 1 to supply power to the starter; the common terminal GND is grounded.
Following the utility model discloses a when the automobile starting storage battery adopts above-mentioned mode one to connect, this automobile starting storage battery working process carries out detailed description:
under the condition of normal starting, when an ignition switch is switched on, a starter is connected with a first storage battery 1, the starter converts electric energy of the first storage battery 1 into mechanical energy to start an engine to run, and the first storage battery 1 provides a large current of hundreds of amperes to the starter so that the voltage of the first storage battery 1 is sharply reduced; the second battery 2 is connected to the electric equipment and supplies power to the electric equipment. When starting, the utility model discloses a working process of car starting storage battery as follows: under the condition that the electric quantities of the first storage battery 1 and the second storage battery 2 are sufficient, when the voltage difference value between the second storage battery 2 and the first storage battery 1 is larger than the conduction voltage of the diode 3, the second storage battery 2 and the first storage battery 1 jointly provide strong starting current for the starter so as to enable the engine to run, and the second storage battery 2 assists the first storage battery 1 to realize the starting of the automobile.
Before starting the vehicle, in the case where the first storage battery 1 is in a sleep state and the second storage battery 2 has a charge, when the ignition switch is switched from the OFF range to the ACC range or from the OFF range to the ON range, the second storage battery 2 is connected to the electric equipment to cause an instantaneous drop in voltage between the first pole BAT1 and the common terminal GND, and the controller 5 detects an operation of triggering a standby charge by detecting the instantaneous drop in voltage to wake up the first storage battery 1, which is as follows: when the controller 5 detects that the voltage between the first pole BAT1 and the common terminal GND drops instantly, the controller 5 detects that a standby power signal is triggered, the controller 5 controls the first switch 4 to be switched on so as to release the protection state of the first storage battery 1, the first storage battery 1 is awakened, and then the standby power in the first storage battery 1 is used for supplying power to the starter, so that the emergency starting of the automobile is realized. Furthermore, the utility model discloses can also produce through hand switch and trigger the standby power quantity signal, specifically, provide triggering signal to controller 5 through hand switch for controller 5 switches on according to triggering signal control first switch 4, and then realizes the emergent start-up of car. The utility model discloses do not restrict ignition switch, it both can be current mechanical key switch, also can be the key switch that a key ignition used. It can be understood that in the present invention, the first switch 4 can also be connected between the first terminal post BAT1 and the positive electrode of the first battery 1, so as to realize the on-off control of the first battery 1 through the controller 5.
Under the condition that the first storage battery 1 fails due to faults and when an ignition switch is switched on, the second storage battery 2 supplies power to the starter through the diode 3, so that the automobile is started.
In the process of starting the storage battery to work, when the controller 5 detects that the voltage of the first storage battery 1 is smaller than the reserved voltage threshold within the continuous time threshold (for example, the voltage value of the first storage battery 1 when the first storage battery 1 is fully charged is about 13V-13.5V, and when the controller 5 detects that the voltage of the first storage battery 1 is smaller than 11.5V within the continuous 10S, it is determined that the voltage of the first storage battery 1 is smaller than the reserved voltage threshold within the continuous time threshold), the controller 5 controls the first switch 4 to be switched off, so that the first storage battery 1 is in a protection state, and the first storage battery 1 reserves the reserved standby power consumption, so as to ensure the emergency starting of the automobile.
In the first mode, when the engine is started and the generator is operated, the generator first charges the first storage battery 1, and the first storage battery 1 stores electric quantity; when the voltage value of the first storage battery 1 reaches the preset voltage threshold value, the second switch 6 is switched on, and the generator charges the second storage battery 2.
The second method comprises the following steps: the first pole BAT1 is respectively connected with the starter and the electric equipment, the second pole BAT2 is empty, and the public end GND is grounded, so that the conventional connection mode of the conventional automobile starting battery is formed.
In mode two, when ignition switch switches on, supply power to starter and consumer through first battery 1, do not make the differentiation to the connection of starter and consumer, can realize from this the utility model discloses two kinds of connected modes of automobile starting storage battery
In the specific implementation process, the first storage battery 1 of the utility model adopts a lithium titanate storage battery; the second storage battery 2 includes a silicate storage battery/a gel battery/a lithium iron phosphate storage battery. It will be appreciated that the second battery 2 of the present invention may be another type of battery that has a longer life and is less expensive than the first battery 1.
As shown in fig. 3, when the engine works or the automobile is in a high temperature environment for a long time, the temperature of the engine compartment can be increased, in order to avoid the high temperature of the engine compartment from affecting the performance of the first storage battery 1 and the second storage battery 2, the phase change layer 9 and the heat insulation layer 10 are sequentially arranged on the surfaces of the first storage battery 1 and the second storage battery 2 from inside to outside; the phase change layer 9 is made of a phase change material with a phase change point of 25-40 ℃, so that the first storage battery 1 and the second storage battery 2 can work at proper temperature, and the service lives of the first storage battery 1 and the second storage battery 2 are prolonged; the heat insulation layer 10 comprises an inner metal film 101 and an outer metal film 102, a heat insulation material 103 is filled between the inner metal film 101 and the outer metal film 102, and the outer metal film 102 can reflect heat of the engine compartment of the automobile, so that the influence of the heat on the first storage battery 1 and the second storage battery 2 can be further reduced. Simultaneously, owing to be provided with phase transition layer 9 and insulating layer 10 to first battery 1 and second battery 2, can also further avoid the low temperature environment to produce the influence to the performance of first battery 1 and second battery 2, promote the low temperature resistant ability of automobile starting storage battery. For example, when the automobile starting battery of the utility model is used in a low temperature environment, the engine can generate high temperature in the engine compartment when the engine works, and the heat insulation layer 10 can slowly transfer heat to the phase change layer 9, so that the phase change layer 9 absorbs the heat and stores the heat; when the engine stops working, the phase change layer 9 slowly releases heat, the inner metal film 101 of the heat insulation layer 10 can reflect the heat slowly released by the phase change layer 9, and the phase change layer 9 and the heat insulation layer 10 jointly play a role in heat insulation of the first storage battery 1 and the second storage battery 2; therefore, when the engine needs to be started again, the heat released by the phase change layer 9 enables the first storage battery 1 and the second storage battery 2 to keep proper temperatures, and the first storage battery 1 and the second storage battery 2 can smoothly supply power to the starter.
Compared with the prior art, the utility model discloses a car starts storage battery has following beneficial effect:
(1) the utility model adopts the lithium titanate storage battery as the first storage battery 1 and the silicate storage battery/colloid battery/lithium iron phosphate storage battery as the second storage battery 2, and because the service life of the lithium titanate storage battery is far longer than that of the existing lead-acid storage battery, and the service life of the silicate storage battery/colloid battery/lithium iron phosphate storage battery is longer than that of the lead-acid storage battery, the service life of an automobile starting storage battery can be effectively prolonged, the storage battery is prevented from being frequently replaced by a user, and the use experience of the user is improved;
(2) the lithium titanate storage battery, the silicate storage battery and the colloid battery adopted by the utility model have good low temperature resistance, so that the automobile starting storage battery of the utility model can realize automobile starting in a low temperature environment; in addition, the first storage battery 1 and the second storage battery 2 are provided with the phase change layer 9 and the heat insulation layer 10, so that the low-temperature resistance of the automobile starting storage battery can be further improved;
(3) in the utility model, the first storage battery 1 adopts a lithium titanate storage battery with better performance, the second storage battery 2 adopts a silicate storage battery/colloid battery/lithium iron phosphate storage battery with better performance and lower price, and the first storage battery 1 and the second storage battery 2 are reasonably matched, so that the utility model can prolong the service life of the automobile starting storage battery and simultaneously reduce the cost of the automobile starting storage battery;
(4) the utility model discloses a car starts storage battery and mainly supplies power to the starter through first battery 1, supplies power to consumer through second battery 2, and both function division is clear;
(5) the utility model discloses an automobile starting storage battery can adopt first battery 1 alone to provide starting current for the starter or for the power supply of external consumer to and adopt second battery 2 alone to provide starting current for the starter or for the power supply of external consumer, first battery 1 and second battery 2 can work independently, when making any battery break down or become invalid, another battery can both ensure the engine start, can effectively improve the reliability of automobile starting storage battery;
(6) when the voltage of the first storage battery 1 is smaller than the reserved voltage threshold value, the automobile starting storage battery controls the first switch 4 to be switched off, so that the first storage battery 1 is in a protection state, and the starting electric quantity is reserved for the emergency starting of the automobile, so that the automobile starting storage battery of the utility model still retains the electric quantity required by the starting of the automobile when being placed for a long time or in an emergency, and ensures that the automobile can be started in an emergency; the controller 5 can be used for detecting the trigger standby power consumption of the ignition switch, an engine cover does not need to be opened, and the use experience of a user is improved;
(7) the utility model provides a car start storage battery can utilize first battery 1 and second battery 2 to provide starting current for the starter of car simultaneously for starting current is strong, can improve the stationarity that the engine started.
Example 2
As shown in fig. 4, the utility model discloses a structural schematic of automobile starting storage battery of embodiment 2.
As shown in fig. 2 and 4, the automobile starting battery in this embodiment includes all the components of the automobile starting battery in embodiment 1, and further includes: the voltage comparator chip 7 is integrated with a first voltage comparator, a positive phase input end A + of the first voltage comparator is connected with the positive pole of the first storage battery 1, and a voltage value input by a negative phase input end A-is a preset voltage threshold value; the second switch 6 is respectively connected with the output end OUTA of the first voltage comparator, the positive electrode of the first storage battery 1 and the negative electrode of the second storage battery 2; when the generator charges the first battery 1, if the voltage of the first battery 1 reaches the preset voltage threshold, the first voltage comparator drives the second switch 6 to be turned on.
For example, the electromotive force of the first battery 1 is 13V, the electromotive force of the second battery 2 is 12.5V, and the voltage value inputted to the inverting input terminal a-of the first voltage comparator is 13.5V. When charging, the generator of the automobile charges the first storage battery 1 first, and when the charging voltage of the first storage battery 1 reaches 13.5V, the output end OUTA of the first voltage comparator outputs a high level to drive the second switch 6 to be switched on, so that the generator of the automobile charges the second storage battery 2. Because the second switch 6 is connected between the first storage battery 1 and the second storage battery 2, when the generator of the automobile charges the first storage battery 1, the first storage battery 1 does not provide charging voltage for the second storage battery 2; and, second switch 6 only can switch on when the charging voltage of first battery 1 reaches and predetermines the voltage threshold value, and then makes the generator of car charge second battery 2, can effectively improve charge efficiency.
Further, as shown in fig. 4, in the automobile starting battery of the present invention, the second switch 6 includes: a first NMOS transistor N1 and a first PMOS transistor P1; the grid of the first NMOS transistor N1 is connected with the output end OUTA of the first voltage comparator through a resistor R1, the source of the first NMOS transistor N1 is connected with the negative electrode P-of the first storage battery 1, the drain of the first NMOS transistor N1 is connected with the grid of the first PMOS transistor P1 through a resistor R2, and a resistor R3 is connected between the source and the grid; the source electrode of the first PMOS tube P1 is connected with the anode of the first storage battery 1, the drain electrode of the first PMOS tube P1 is connected with the anode of the second storage battery 2, and the grid electrode of the first PMOS tube P1 is connected with the source electrode of the first PMOS tube P1 through a resistor R4. When the voltage of the positive phase input end a + of the first voltage comparator is greater than the preset voltage threshold, the output end OUTA of the first voltage comparator outputs a high level to drive the first PMOS transistor P1 to be turned on through the first NMOS transistor N1, so that the second storage battery 2 is connected in parallel with the first storage battery 1, and then the generator provides a charging voltage for the second storage battery 2 in a charging mode; when the voltage at the positive phase input terminal a + of the first voltage comparator is smaller than the preset voltage threshold, the output terminal OUTA of the first voltage comparator outputs a low level, the first NMOS transistor N1 and the first PMOS transistor P1 are both turned off, and the first switch 4 is turned off.
Further, as shown in fig. 2 and 4, the utility model discloses a vehicle starting storage battery still includes: a second voltage comparator, a photoelectric coupler 8 and a second NMOS transistor N2 integrated in the voltage comparator chip 7; the positive phase input end B + input voltage value of the second voltage comparator is a reserved voltage threshold, the negative phase input end B-is connected with the positive electrode of the first storage battery 1, and the output end OUTB is connected with the grid electrode of the second NMOS tube N2 through a resistor R5; the drain electrode of the second NMOS tube N2 is connected with the positive electrode of the first storage battery 1 through a resistor R6, the source electrode of the second NMOS tube N2 is connected with the negative electrode of the first storage battery 1, and a resistor R7 is connected between the source electrode and the grid electrode; a first connecting pole at the input side of the photoelectric coupler 8 is connected with the controller 5 through a resistor R8, a second connecting pole at the input side is connected with a common end GND, a first connecting pole at the output side is connected with a grid electrode of a second NMOS tube N2 through a resistor R9, and a second connecting pole at the output side is connected with a negative electrode P & lt- & gt of the first storage battery 1; the controller 5 inputs a PWM signal to the first connection electrode on the input side of the photoelectric coupler 8, so that the photoelectric coupler 8 periodically drives the second NMOS transistor N2, and the controller 5 may periodically obtain a comparison result of the second voltage comparator; in the working process of the first storage battery 1, if the voltage of the inverting input end B-of the second voltage comparator is smaller than the reserved voltage threshold value within the continuous time threshold value, the controller 5 turns off the first switch 4, so that the electric quantity in the first storage battery 1 can be reserved, and the first storage battery 1 can be used for starting an engine of an automobile in an emergency.
Further, as shown in fig. 4, the battery for starting a vehicle of the present invention further includes a first indicator light D1 connected to the controller 5 through a resistor R10. The controller 5 detects the voltage value of the second battery 2 through the voltage at the connection point of the series resistors R11 and R12, and controls the first indicator lamp D1 to emit light of different colors according to the voltage value of the second battery 2. For example, the electromotive force of the second storage battery 2 is 12.5V, and when the controller 5 detects that the voltage value of the second storage battery 2 is 12.5V, the second indicator lamp D2 is controlled to emit green light; when the controller 5 detects that the voltage value of the second storage battery 2 is between 11V and 12V, the second indicator lamp D2 is controlled to emit orange light; when the controller 5 detects that the voltage value of the second storage battery 2 is between 10V and 11V, the first indicator lamp D1 is controlled to emit red light; when the controller 5 detects that the voltage value of the second storage battery 2 is less than 10V, the first indicator lamp D1 is controlled to emit red light and blink.
Preferably, as shown in fig. 5, the first storage battery 1 in the automobile starting battery of the present invention comprises a plurality of single batteries 11 connected in series; the automobile starting battery comprises a charge equalization device connected between a first storage battery 1 and a controller 5; in the charging mode, when the voltage of any single battery 11 is smaller than that of other single batteries 11, the controller 5 controls the charge equalization device to charge the any single battery 11, so as to realize charge equalization.
The charge equalization apparatus is further described below.
As shown in fig. 5, the charge equalization apparatus includes a plurality of transistors Q1; the triode Q1 is connected with the single battery 11 one to one; wherein, the emitter of the triode is connected to the positive pole of the single battery 11, the collector is connected to the negative pole of the single battery 11 through the resistor R13 connected in series, the base is connected to the controller 5 through the resistor R14 connected in series, and the connection point of the resistor R14 and the controller 5 is connected to the emitter through the resistor R15. In the charging mode, when the controller 5 detects that the voltage of any one of the single batteries 11 is less than that of the other single batteries 11, the triode Q1 corresponding to the any one of the single batteries 11 is controlled to be turned off, and the triode Q1 corresponding to the other single batteries 11 is controlled to be turned on, so as to charge any one of the single batteries with the smaller voltage, so that the voltage of the any one of the single batteries 11 is equalized with the voltages of the other single batteries 11.
Example 3
As shown in fig. 6, is a schematic structural diagram of an automobile starting battery of the embodiment 3 of the present invention.
The automobile starting battery in the embodiment comprises all the components of the automobile starting battery in the embodiment 1, and also comprises the following components: a thermistor R100 connected between the controller 5 and the negative electrode of the first battery 1; when the controller 5 detects an abnormality of the thermistor R100, it controls the first switch 4 to be turned off.
Specifically, as shown in fig. 6, the first switch 4 further includes: a third NMOS transistor N3 and a fourth NMOS transistor N4; the source electrode of the third NMOS transistor N3 is connected with the negative electrode of the first storage battery 1 through a resistor R16, the grid electrode of the third NMOS transistor N3 is connected with the controller 5 through a resistor R17, and the drain electrode of the third NMOS transistor N3 is connected with the drain electrode of the fourth NMOS transistor N4; the gate of the fourth NMOS transistor N4 is connected to the controller 5 through a resistor R18, the source of the fourth NMOS transistor N4 is connected to the common terminal GND, and a resistor R19 is connected between the drain and the source of the fourth NMOS transistor N4. When the first storage battery 1 supplies power to the starter, if the controller 5 detects that the thermistor R100 is abnormal, a low level is output to the gate of the third NMOS transistor N3 to cut off the third NMOS transistor N3, thereby prompting the negative electrode of the first storage battery 1 to be disconnected from the common terminal GND; when the generator charges the first storage battery 1, if the controller 5 detects that the thermistor R100 is abnormal, a low level is output to the gate of the fourth NMOS transistor N4 to control the fourth NMOS transistor N4 to be turned off, so that the negative electrode of the first storage battery 1 is disconnected from the common terminal GND, thereby protecting the first storage battery 1 during charging or discharging.
Further, as shown in fig. 6, the battery for starting the automobile further includes: a second PMOS transistor P2, a gate of the second PMOS transistor P2 is connected to a gate of the third NMOS transistor N3 through a resistor R20 and a resistor R17, a source of the second PMOS transistor P2 is connected to an anode of the first battery 1, a resistor R21 is connected between a source of the second PMOS transistor P2 and the gate, a drain of the second PMOS transistor P2 is connected to an anode of the second indicator light D2 through a resistor R22, and a cathode of the second indicator light D2 is connected to a cathode P-of the first battery 1, so that the second PMOS transistor P2 can drive the second indicator light D2 to emit light when the controller 5 outputs a low level, and further, the charging or discharging process of the first battery 1 can be indicated by a light-emitting state of the second indicator light D2.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form, so that any simple modification, equivalent change and modification made by the technical entity of the present invention to the above embodiments without departing from the technical solution of the present invention all fall within the scope of the technical solution of the present invention.
Claims (10)
1. An automobile starting battery cell, characterized by comprising:
the positive electrode of the first storage battery is connected with the first pole, and the negative electrode of the first storage battery is connected to the common end;
the anode of the second storage battery is connected with the second pole column, and the cathode of the second storage battery is connected to the common terminal;
the anode of the diode is connected with the second pole column, and the cathode of the diode is connected with the first pole column;
the first switch is connected between the positive electrode of the first storage battery and the first pole, or between the negative electrode of the first storage battery and the common end;
a controller connected to the positive electrode of the first battery and the first switch, respectively;
when the controller detects that the voltage value of the first storage battery is smaller than a reserved voltage threshold value within a continuous time threshold value, the controller controls the first switch to be switched off so as to reserve the reserved power consumption of the first storage battery; when the trigger standby power quantity signal is detected, the first switch is controlled to be switched on, so that the first storage battery provides standby power quantity.
2. The vehicle starting battery of claim 1, wherein the first battery comprises a long-life, low temperature-resistant battery; the second storage battery comprises a silicate storage battery/a colloid storage battery/a lithium iron phosphate storage battery.
3. The automobile starting battery of claim 1, wherein a phase change layer and a thermal insulation layer are sequentially arranged on the surfaces of the first storage battery and the second storage battery from inside to outside.
4. The vehicle starting battery as in claim 1,
the trigger standby electric quantity signal is generated when the ignition switch is switched from an OFF gear to an ACC gear or an ON gear.
5. The vehicle starting battery of claim 1, further comprising:
the manual switch is used for generating the trigger standby power quantity signal;
the manual switch is connected with the controller, so that the controller can detect the trigger standby power quantity signal.
6. The vehicle starting battery of claim 1, further comprising:
a second switch connected between the positive electrode of the first battery and the positive electrode of the second battery;
the first pole is connected with a generator to charge the first storage battery and the second storage battery; in the charging mode, if the voltage of the first storage battery reaches a preset voltage threshold, the second switch is switched on to enable the generator to charge the second storage battery.
7. The vehicle starting battery of claim 6, further comprising:
the positive phase input end of the first voltage comparator is connected with the positive electrode of the first storage battery, the negative phase input end of the first voltage comparator inputs a preset voltage threshold value, and the output end of the first voltage comparator is connected with the second switch;
in a charging mode, if the voltage of the first storage battery reaches the preset voltage threshold, the first voltage comparator drives the second switch to be switched on.
8. The vehicle starting battery of claim 7, wherein the second switch comprises:
a first NMOS transistor and a first PMOS transistor; wherein,
the grid electrode of the first NMOS tube is connected with the output end of the first voltage comparator through a resistor R1, the source electrode of the first NMOS tube is connected with the negative electrode of the first storage battery, the drain electrode of the first NMOS tube is connected with the grid electrode of the first PMOS tube through a resistor R2, and a resistor R3 is connected between the source electrode and the grid electrode;
the source electrode of the first PMOS tube is connected with the anode of the first storage battery, the drain electrode of the first PMOS tube is connected with the anode of the second storage battery, and the grid electrode of the first PMOS tube is connected with the source electrode of the first PMOS tube through a resistor R4.
9. The automobile starting battery cell as defined in any one of claims 1 to 8, further comprising:
the second voltage comparator, the photoelectric coupler and the second NMOS tube; wherein,
the positive phase input end of the second voltage comparator inputs the reserved voltage threshold, the negative phase input end of the second voltage comparator is connected with the positive electrode of the first storage battery, and the output end of the second voltage comparator is connected with the grid electrode of the second NMOS tube;
the drain electrode of the second NMOS tube is connected with the anode of the first storage battery, and the source electrode of the second NMOS tube is connected with the cathode of the first storage battery;
a first connecting pole at the input side of the photoelectric coupler is connected with the controller, a second connecting pole at the input side is connected to the common end, a first connecting pole at the output side is connected with the grid electrode of the second NMOS tube, and a second connecting pole at the output side is connected with the negative electrode of the first storage battery;
the controller outputs a PWM signal to the photocoupler to detect a voltage of the first battery within a sustained time threshold.
10. The automobile starting battery cell as claimed in any one of claims 1 to 8, wherein the first storage battery comprises a plurality of single battery cells connected in series;
the automobile starting battery comprises a charge equalization device connected between the first storage battery and the controller;
in the charging mode, when the voltage of any single battery is smaller than that of other single batteries, the controller controls the charging equalization device to charge the any single battery, and further charging equalization is achieved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849800.6U CN207968054U (en) | 2017-12-26 | 2017-12-26 | A kind of automobile starting storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721849800.6U CN207968054U (en) | 2017-12-26 | 2017-12-26 | A kind of automobile starting storage battery |
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| CN207968054U true CN207968054U (en) | 2018-10-12 |
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| CN201721849800.6U Expired - Fee Related CN207968054U (en) | 2017-12-26 | 2017-12-26 | A kind of automobile starting storage battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910951A (en) * | 2017-12-26 | 2018-04-13 | 周伟中 | A kind of automobile starting storage battery |
| CN109450429A (en) * | 2018-10-26 | 2019-03-08 | 南京汽车集团有限公司 | Power supply on vehicle control switch and control method |
| CN109969106A (en) * | 2019-04-21 | 2019-07-05 | 常州轻工职业技术学院 | Vehicle-mounted ACC power control and method based on NMOS |
-
2017
- 2017-12-26 CN CN201721849800.6U patent/CN207968054U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107910951A (en) * | 2017-12-26 | 2018-04-13 | 周伟中 | A kind of automobile starting storage battery |
| CN109450429A (en) * | 2018-10-26 | 2019-03-08 | 南京汽车集团有限公司 | Power supply on vehicle control switch and control method |
| CN109450429B (en) * | 2018-10-26 | 2022-07-08 | 南京汽车集团有限公司 | Vehicle power supply control switch and control method |
| CN109969106A (en) * | 2019-04-21 | 2019-07-05 | 常州轻工职业技术学院 | Vehicle-mounted ACC power control and method based on NMOS |
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