KR102631804B1 - smart management system for battery - Google Patents

Abstract

In order to improve safety, the present invention includes a rotor connected to a driving body to be rotatable and provided with an excitation coil, and a stator wound with an induction coil that forms an inductive magnetic field when the rotor rotates. a generator that produces electricity through; a battery unit connected to the generator with wires to charge and discharge power; A BMS switching unit is provided with a wire connected to the battery unit and the induction coil to individually measure the voltage in the battery unit and the induction coil, and a BMS switching unit connected to the excitation coil with a wire to selectively supply and block excitation current. wealth; The generator, the battery unit, and the BMS unit are connected by wires and the voltages in the battery unit and the induction coil individually measured by the BMS unit are compared and determined, wherein the charging voltage of the battery unit is determined by the power generation in the induction coil. If the voltage is lower than the preset buffer voltage, a supply switching signal is transmitted to the BMS switching unit so that the excitation current is supplied to the excitation coil, and if the charging voltage of the battery unit is more than the buffer voltage, the excitation current is blocked by the excitation coil. A female PCB unit that transmits a blocking switching signal to the BMS switching unit as much as possible; and a charging status display unit connected to the female PCB unit and the BMS unit with a wire and selectively displaying the transmission status of the supply switching signal and the blocking switching signal.

Description

Battery smart management system {smart management system for battery}

The present invention relates to a battery smart management system, and more specifically, to a battery smart management system with improved safety.

In general, cars use gasoline or diesel as fuel. Gasoline and diesel not only cause air pollution by emitting harmful substances, but also the crude oil for manufacturing gasoline and diesel fuel is being depleted, so the development of alternative energy to replace it is necessary. It is necessary. Recently, each industry is rushing to develop alternative energy, and as an alternative, electric vehicles that run on electric energy are being developed.

These electric vehicles refer to vehicles that run using electricity, and can be broadly divided into pure electric vehicles (Battery Powered Electric Vehicle) and hybrid electric vehicles (Hybrid Electric Vehicle).

Here, the pure electric vehicle is a vehicle that runs only using electricity without using fossil fuels, and is generally referred to as an electric vehicle. And, a hybrid electric vehicle refers to a vehicle that runs using electricity and fossil fuels.

These electric vehicles are equipped with batteries that supply electricity for driving. In particular, pure electric vehicles and plug-in type hybrid electric vehicles charge their batteries using power supplied from an external power source and drive electric motors using the power charged in the battery.

In addition, vehicles such as the above-described electric vehicles that do not have an engine and run solely on electric energy stored in a battery can only be driven by charging the energy in the battery when it is discharged. However, compared to the spread of electric vehicles, there is a disadvantage that charging locations are limited as the infrastructure for electric vehicles, such as the installation of charging stations that support electric charging, is insufficient.

Here, while driving the electric vehicle, the driver can charge the battery of the electric vehicle using an emergency power supply device provided in a towing vehicle such as a wrecker that is dispatched in an emergency in a situation where the battery is unexpectedly discharged or needs to be recharged. there is.

This power supply device can produce power that can be supplied to an electric vehicle as the rotor of the generator connected to the engine of the towing vehicle rotates at high speed at tens of thousands of revolutions per minute (RPM). At this time, the alternating current voltage produced as the rotor rotates is converted into direct current voltage through a rectifier and can be supplied to an electric vehicle or stored in an auxiliary battery.

Here, the auxiliary battery is mainly a nickel-based battery such as nickel-cadmium or nickel-metal hydride, but as the demand for high-performance automobile batteries has recently increased, lithium-ion batteries with high energy density are mainly used.

However, if the lithium-ion-based auxiliary battery is overloaded and overheated due to excessive supply of power above the rated voltage, generation of overcurrent, or discharge due to low voltage, there is a high possibility of safety accidents such as fire occurring, and when discharged, the auxiliary battery may be damaged. There was a problem that made reuse difficult.

In addition, when the generator that uses the vehicle's battery as the main power source of the system is heavily loaded or consumes more power than the generator's charging voltage, frequent charging and discharging causes a problem in that battery life is reduced.

In particular, if power is continuously supplied through the generator even when the battery is fully charged, not only will the lifespan of the battery be reduced, but it may also cause failure in electrical devices such as lamps and air conditioners, as well as electrical components of the engine starter or ignition device connected to the battery. There was a problem that resulted.

Meanwhile, leisure activities using camping cars have recently increased, but the general public without electrical expertise is exposed to danger when using high-current batteries provided in camping cars, so the development of safety devices is required.

However, operating the camper's engine to drive the generator for electricity production and charge multiple batteries results in excessive fuel consumption, and costs and time for replacement of parts in the event of a breakdown occur, which reduces economic efficiency. there was.

In addition, when installing multiple batteries in a camping car and connecting them in parallel in order to increase charging capacity, there was a problem in responding to battery abnormalities due to causes such as reverse voltage generation during the voltage balancing process or momentary overvoltage. .

Korean Patent No. 10-1870727

In order to solve the above problems, the present invention aims to provide a battery smart management system with improved safety.

In order to solve the above problem, the present invention includes a rotor unit that is power connected to a driving body and rotatably disposed and provided with an excitation coil, and a stator unit wound with an induction coil that forms an inductive magnetic field when the rotor unit rotates. A generator that produces electricity through driving force; A main battery unit including a first battery pack that is connected to the generator with a wire and is provided with a plurality of first battery cells connected in parallel to charge and discharge power, and a power supply in parallel with the main battery unit. A battery unit including an auxiliary battery unit including a second battery pack in which a plurality of second battery cells are connected in parallel to charge and discharge power; A BMS switching unit is provided with a wire connected to the battery unit and the induction coil to individually measure the voltage in the battery unit and the induction coil, and a BMS switching unit connected to the excitation coil with a wire to selectively supply and block excitation current. wealth; The generator, the battery unit, and the BMS unit are connected by wires and the voltages in the battery unit and the induction coil individually measured by the BMS unit are compared and determined, and the charging voltage of the battery unit and the power generation in the induction coil are determined. an excitation PCB unit for selectively transmitting one of a supply switching signal and a blocking switching signal to the BMS switching unit so that an excitation current is supplied to the excitation coil by comparing a preset buffer voltage below the voltage; and a battery measuring unit connected to a compatible power supply to each input/output terminal of the first battery pack and the second battery pack and measuring the voltage and charge capacity of the first battery pack and the second battery pack, one end of which is connected to the first battery pack and the second battery pack. An input/output module unit that is individually connected to power to each input/output terminal of the battery pack and the second battery pack and the other end of which is connected to an external output terminal and an external input terminal, respectively, is connected to the battery measurement unit and the input/output module unit by a circuit, but is connected to a power source. An input/output control unit that controls input/output, wherein the input/output module unit includes a plurality of switching switching units provided between each input/output terminal of the first battery pack and the second battery pack, the external output terminal, and the external input terminal, The switching switching unit includes a first output switching switching unit connected to power between the output terminal of the first battery pack and the external output terminal, and a second output switching switching unit connected to power between the output terminal of the second battery pack and the external output terminal. And, a first input switching switching unit connected to power between the input terminal of the first battery pack and the external input terminal, and a second input switching switching unit connected to power between the input terminal of the second battery pack and the external input terminal; , the input/output control unit is one of the first output switching switching unit and the second output switching switching unit connected to the one of the first battery pack and the second battery pack with a higher voltage measured through the battery measurement unit. A discharge signal is applied to the first output switching switching unit and an output blocking signal is applied to the other one of the second output switching switching unit, and the input/output control unit measures the first battery pack and the battery measured through the battery measuring unit. When the charging capacity of any one of the second battery packs is less than the preset value, a discharge signal is simultaneously applied to the first output switching switching unit and the second output switching switching unit, and the input/output control unit measures the measured value through the battery measuring unit. When the voltage of the first battery pack and the second battery pack is less than the preset first voltage, a charging signal is first applied to the first input switching switching unit and the second input switching switching unit, respectively, and the battery measuring unit When the voltage of the first battery pack and the second battery pack measured through the first voltage is greater than the first voltage and less than the full charge voltage exceeding the first voltage, the first input switching switching unit and the second input switching switching unit An input blocking signal is applied a second time to each for a preset time, and after the preset time has elapsed, the first input switching switching unit and A charging signal is applied three times to the second input switching switching unit, and when the voltages of the first battery pack and the second battery pack measured through the battery measuring unit reach the full charge voltage, the first input is switched. A battery smart management system is provided, characterized in that the input blocking signal is applied four times to the switching unit and the second input switching switching unit.

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Through the above solutions, the present invention provides the following effects.

First, the excitation PCB unit, which compares and determines the voltage of the battery unit and the generator, controls the BMS switching unit connected to the excitation coil of the generator to selectively supply and block the application of the excitation current, so that the battery unit is charged even when the generator is continuously operated. By stopping, the battery compartment is protected from overcharging, so battery life can be significantly increased.

Second, the female PCB transmits a supply switching signal to the BMS switching unit if the charging voltage of the battery unit is less than the generated voltage of the induction coil and the preset buffer voltage, and if the charging voltage of the battery unit is higher than the full charge voltage, it is blocked to the BMS switching unit. By transmitting a switching signal, the power of the battery unit is transmitted stably and uniformly in a constant amount to various electrical devices, and transmission quality can be significantly improved.

Third, if the voltage of each battery pack is less than the first voltage, a charging signal is first applied to each input switching switching unit, but when the first voltage is reached, an input blocking signal is applied secondly, and after a preset time has elapsed, the first charging signal is applied. Since the charging signal is applied in three stages until a full charge voltage exceeding the voltage is reached, damage to the battery pack due to overvoltage/overcurrent is prevented and stable power charging is possible, thereby significantly improving durability.

Fourth, power input from the external output terminal is blocked through the first and second reverse voltage blocking units that allow forward current but block reverse current, and power output to the external input terminal is blocked, thereby preventing incorrect connection of the battery pack. Safety of use can be significantly improved by preventing lifespan reduction and explosion.

Fifth, the power stored in a plurality of battery packs is sequentially discharged in the order of the highest voltage measured through the battery measurement unit. However, if the charge capacity of any one of the battery packs is less than the preset value, the power stored in each battery pack is discharged simultaneously and the discharged battery is discharged. Since the pack is switched, power supply is provided stably and continuously, and transmission quality can be significantly improved.

1 is a block diagram showing a battery smart management system according to an embodiment of the present invention.
Figures 2a and 2b are exemplary diagrams showing the use state of the battery smart management system according to an embodiment of the present invention.
Figures 3 and 4 are block diagrams showing a battery smart management system according to another embodiment of the present invention.
Figures 5A to 5C are exemplary diagrams showing a usage state during discharging in a battery smart management system according to another embodiment of the present invention.
Figures 6A to 6F are exemplary diagrams showing usage states during charging in a battery smart management system according to another embodiment of the present invention.

Hereinafter, a battery smart management system according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a block diagram showing a battery smart management system according to an embodiment of the present invention, and Figures 2a and 2b are exemplary diagrams showing the use state of the battery smart management system according to an embodiment of the present invention.

As shown in FIGS. 1 to 2B, the battery smart management system 100 according to an embodiment of the present invention includes a generator 10, a battery unit 20, a BMS unit 160, and a female PCB unit 40. and a charging status display unit 50.

Here, the generator 10 includes a rotor 11 that is rotatably connected to a driving body and is provided with an excitation coil 12 for applying an excitation current, and an induced magnetic field when the rotor 11 rotates. It is preferable that the induction coil 14, which is formed, includes a stator 13 wound and is provided to produce power through driving force. Of course, in some cases, an induction coil may be provided in the rotor and an excitation coil may be provided in the stator.

At this time, the driving body may be provided as an engine provided in a hybrid vehicle or ship to provide driving force as it rotates. In addition, the generator 10 may be connected to the engine and be equipped to produce power through driving force. For example, the engine may be installed in a vehicle and be configured to transmit the driving force generated by consuming fuel such as gasoline or diesel to the generator 10 through a power transmission belt through a power shaft.

In addition, the generator 10 connects the rotating shaft of the rotor 11 to the power transmission belt to receive driving force from the engine, and generates power as the rotor 11 rotates by the driving force transmitted from the engine. Can be equipped to produce.

For example, the rotor 11 may be power-connected to the engine through the power transmission belt, and the stator 13 is disposed to surround the outside of the rotor 11, where the rotor 11 is connected to the rotating shaft. The induction coil 14, which produces power by electromagnetic induction, may be wound as it rotates around the part.

The generator 10 may be connected in parallel to the battery unit 20, the BMS unit 30, and the female PCB unit 40, and the generated power may be charged to the battery unit 20 and It can be saved.

Here, the positive terminal of the induction coil 14 may be connected to each positive terminal of the battery unit 20, the BMS unit 30, and the female PCB unit 40, and the generator 10 The minus terminal of the induction coil 14 may be connected to the power minus terminal of the BMS unit 30, shown as P(-) in FIG. 2A. In addition, the excitation coil 12 may be connected to the excitation PCB unit 40 with a wire to selectively control the application of excitation current to the generator 10.

Meanwhile, the battery unit 20 is preferably connected to the generator 10 with a wire to charge and discharge power. Here, the battery unit 20 is preferably provided with a secondary battery capable of charging electrons, such as a lead acid battery, nickel cadmium battery, lithium polymer battery, lithium ion battery, or nickel hydride battery.

Here, the positive terminal of the battery unit 20 may be connected to each positive terminal of the induction coil 14 of the generator 10, the BMS unit 30, and the female PCB unit 40.

In addition, the negative terminal of the battery unit 20 may be connected to the battery negative terminal of the BMS unit 30 and the negative terminal of the female PCB unit 40, shown as B(-) in FIG. 2A.

Accordingly, the power produced by the generator 10 can be charged to the battery unit 20. In addition, the battery unit 20 can be discharged by being connected to an external output terminal with a wire to transmit the charged and stored power to the outside.

Meanwhile, the BMS unit 30 connects a wire to the induction coil 14 and the battery unit 20 to individually measure the voltage at the battery unit 20 and the induction coil 14 of the generator 10. Connected is desirable.

Here, the positive terminal of the BMS unit 30 may be connected to each positive terminal of the induction coil 14 of the generator 10, the battery unit 20, and the female PCB unit 40.

In addition, the minus terminal of the induction coil 14 may be connected to the power minus terminal of the BMS portion 30, and the battery portion 20 and the excitation coil may be connected to the battery minus terminal of the BMS portion 30. Each minus terminal of the PCB 40 may be connected to a wire.

In addition, the BMS unit 30 is preferably provided with a BMS switching unit 31 connected to the excitation coil 12 with a wire to selectively supply and block excitation current. At this time, the BMS switching unit 31 is preferably understood as a switch circuit provided for electrical connection and short-circuiting between the BMS unit 30 and the excitation coil 12. That is, the BMS switching unit 31 is connected with a wire between the BMS unit 30 and the excitation coil 12, and the BMS unit 30 and the excitation coil 12 are connected so that the excitation current is blocked. It is desirable to selectively short-circuit between them.

Additionally, the BMS unit 30 may be provided to individually measure each voltage in the battery unit 20 and the induction coil 14. At this time, through comparison between the charging voltage of the battery unit 20 individually measured by the BMS unit 30 and the generated voltage at the induction coil 14, the excitation PCB unit 40 is determined by the excitation coil 12. ) can be controlled so that the exciting current is selectively supplied.

Meanwhile, the female PCB unit 40 is connected to the generator 10, the battery unit 20, and the BMS unit 30 with wires, and the battery unit 20 is individually measured by the BMS unit 30. ) and is preferably provided to compare and determine the voltage at the induction coil 14.

In addition, the excitation PCB unit 40 compares the charging voltage of the battery unit 20 with the buffer voltage preset to be less than the generated voltage in the induction coil to supply excitation current to the excitation coil 12. It is preferable that the BMS switching unit 31 is provided as a circuit device that controls the selective transmission of either a supply switching signal or a blocking switching signal.

Here, the excitation PCB unit 40 supplies an excitation current to the excitation coil 12 when the charging voltage of the battery unit 20 is less than the generated voltage in the induction coil 14 and less than the preset buffer voltage. It is desirable to transmit a supply switching signal to the BMS switching unit 31.

For example, in the excitation PCB unit 40, when the charging voltage of the battery unit 20 is 12.0V, the generation voltage at the induction coil 14 is 15.5V, and the charging voltage is 14.8V, the excitation coil A supply switching signal can be transmitted to the BMS switching unit 31 so that the exciting current is supplied to (12).

On the other hand, the excitation PCB unit 40 sends a blocking switching signal to the BMS switching unit 31 to block the excitation current to the excitation coil 12 when the charging voltage of the battery unit 20 is higher than the buffer voltage. It is desirable to transmit .

For example, in the excitation PCB unit 40, when the charging voltage of the battery unit 20 is 15.2V, the generation voltage at the induction coil 14 is 15.5V, and the charging voltage is 14.8V, the excitation coil A blocking switching signal can be transmitted to the BMS switching unit 31 so that the exciting current is supplied to (12).

Therefore, the excitation PCB unit 40, which compares and determines the voltage of the battery unit 20 and the induction coil 14 of the generator 10, selectively supplies and blocks the application of the excitation current to the generator 10. By controlling the BMS switching unit 31, which is wired to the excitation coil 12, charging of the battery unit 20 is stopped even when the generator is continuously driven, thereby protecting the battery unit 20 from overcharging, thereby extending battery life. This can be significantly increased.

In addition, the female PCB unit 40 sends a supply switching signal to the BMS switching unit 31 when the charging voltage of the battery unit 20 is less than the generated voltage of the induction coil 14 and less than the preset buffer voltage. When the charging voltage of the battery unit 20 is higher than the full charge voltage, a blocking switching signal is transmitted to the BMS switching unit 31, so that the power of the battery unit 20 is stably maintained at a certain amount by various electric devices. Transmission quality can be significantly improved by uniform transmission.

For example, when the battery smart management system 100 is applied to a camping car, the power of the battery unit 20 can be stably and uniformly transmitted at a certain amount to various electrical devices, including fluorescent lights, etc. of the camping car. Therefore, even when there is no problem with electricity supply, it is possible to prevent fluorescent lamp flickering, which occurs when various electrical devices, including fluorescent lamps, repeat power supply and non-supply in microseconds due to irregular power supply. can provide a sense of trust.

Meanwhile, the charging status display unit 50 is connected to the excitation PCB unit 40 and the BMS unit 30 with a wire, and is preferably provided to selectively display the transmission status of the supply switching signal and the blocking switching signal. do.

Here, the charging status display unit 50 is connected to the female PCB unit 40 and the BMS unit 30 with a wire and includes at least one LED lamp that selectively blinks when transmitting the supply switching signal and the blocking switching signal. May include parts (not shown).

For example, the LED lamp unit (not shown) may be provided on one side of the outer surface of the battery unit 20. Additionally, the LED lamp unit (not shown) may repeat blinking at preset periods in a preset first pattern when transmitting the supply switching signal. Furthermore, the LED lamp unit (not shown) may repeat blinking at preset periods in a preset second pattern that is different from the first pattern when transmitting the blocking switching signal.

Therefore, the transmission status of the supply switching signal and the blocking switching signal is selectively displayed through the charging status display unit 50, which is wired to the excitation PCB unit 40 and the BMS unit 30, so that the excitation coil ( 12) It is possible to easily check whether the excitation current is supplied/blocked, so convenience of use can be improved.

Meanwhile, Figures 3 and 4 are block diagrams showing a battery smart management system according to another embodiment of the present invention, and Figures 5a to 5c show the use state during discharging in the battery smart management system according to another embodiment of the present invention. This is an example diagram, and FIGS. 6A to 6F are diagrams showing a usage state during charging in a battery smart management system according to another embodiment of the present invention. In this embodiment, since the rest of the configuration except for the smart power management unit 160 is the same as the above-described embodiment, detailed description is omitted.

As shown in FIGS. 3 to 6F, the battery smart management system 200 according to an embodiment of the present invention includes a generator 110, a battery unit 120, a BMS unit 130, and a female PCB unit 140. and a smart power management unit 160.

Here, the generator 110, the battery unit 120, the BMS unit 130, and the female PCB unit 140 are the generator (10 in FIG. 1) and the battery unit (in FIG. 1) of the above-described embodiment. 20), the BMS unit (30 in FIG. 1) and the female PCB unit (40 in FIG. 1) are the same in configuration and function, so detailed descriptions are omitted.

Meanwhile, the battery smart management system 200 is a system configured to efficiently use finished battery packs with different voltage/current capacities by adding them only by connecting a power line without a separate communication connection.

Here, the battery unit 120 is a first battery pack ( A main battery unit 121 including 121a) and a plurality of second battery cells 122b connected to power in parallel with the main battery unit 121 are connected in parallel to charge and discharge power. It is preferable to include an auxiliary battery unit 122 including a pack 122a.

In detail, the main battery unit 121 may include a first battery pack 121a in which a plurality of first battery cells 121b are connected in parallel to charge and discharge power.

In addition, the auxiliary battery unit 122 is provided with a plurality of second battery cells 122b connected in parallel to the main battery unit 121 and connected to the smart power management unit 160 to charge and charge power. It may include a second battery pack 122a that is discharged.

At this time, in another embodiment of the present invention, the configuration of the auxiliary battery unit 122 is shown and explained by taking the case where one second battery pack 122a is provided as an example, but the auxiliary battery unit 122 is configured for each battery. It includes a pack and may be provided in at least one unit, and even if provided in plural units, each auxiliary battery unit 122 may be connected to a compatible power source to the smart power management unit 160. In addition, each battery cell includes a secondary battery capable of charging electrons, such as a lead acid battery, nickel cadmium battery, lithium polymer battery, lithium ion battery, and nickel hydride battery. In addition, although not shown in the drawings, it is desirable to understand that each battery pack includes a plurality of battery modules, and each battery module includes a plurality of battery cells.

For example, at least one of each of the first battery cells 121b and each of the second battery cells 122b has a preset voltage, 4.1V for a Li-Ion battery and 3.7V for a LiFePO ₄ (Lithium Iron Phosphate) battery. When V is reached, cell balancing can be performed by controlling the charging current to be consumed or transferred to another battery cell with a lower voltage.

Meanwhile, the smart power management unit 160 includes a battery measurement unit 161, an input/output module unit 162, a first reverse voltage cutoff unit 164, a second reverse voltage cutoff unit 165, an external output terminal 166, It is desirable to include an external input terminal 167 and an input/output control unit 168.

In detail, the battery measurement unit 161 is connected to a compatible power supply to each input and output terminal of the first battery pack 121a and the second battery pack 122a, and is connected to the first battery pack 121a and the second battery pack 122a. It is preferable that it is provided as a measuring device to measure the voltage and charging capacity of (122a). In addition, the battery measuring unit 161 is preferably connected to the external output terminal 166 and the external input terminal 167 in a circuit. At this time, being connected to a compatible power source means that a plurality of battery packs are selectively connected to an individual power source to the battery measuring unit 161.

In addition, the input/output control unit 168 is preferably provided as a control device that is connected in a circuit to the battery measurement unit 161 and the switching unit 163 of the input/output module unit 162 to control the input/output of power.

In addition, the input/output module unit 162 has one end individually connected to the input/output terminal of the first battery pack 121a and the second battery pack 122a, and the other end is connected to the external output terminal 166 and the external power supply. It is desirable that each power supply be connected to the input terminal 167.

At this time, the external output terminal 166 may be provided as a connection terminal for outputting power to the outside from the smart power management unit 160, and the external input terminal 167 may be connected to the smart power management unit ( 160) may be provided as a connection terminal for inputting power.

At this time, the generator 110 may be connected to the external input terminal 167 with a wire, and as the generator 10 is electrically connected to the external input terminal 167, it may be connected to the input/output module unit 162 with a wire. .

That is, unlike one embodiment in which the generator (10 in FIG. 1) is directly connected to the battery unit (20 in FIG. 1) with a wire, in another embodiment, the generator 110 is connected to the external input terminal 167 with a wire to the A wire may be connected to the battery unit 120 via the smart power management unit 160.

In addition, the input/output module unit 162 is provided between each input/output terminal of the first battery pack 121a and the second battery pack 122a and the external output terminal 166 and the external output terminal 167. It is preferable to include a plurality of switching switching units 163.

In detail, the switching switching unit 163 includes a first output switching switching unit 163a connected to power between the output terminal of the first battery pack 121a and the external output terminal 166, and the second battery pack 122a. ) It is preferable to include a second output switching switching unit (163b) connected to power between the output terminal of ) and the external output terminal (166).

Here, the first output switching switching unit 163a and the second output switching switching unit 163b may be provided as switching elements. At this time, the first output switching switching unit 163a and the second output switching switching unit 163b are the first battery pack 121a and the second battery whose respective input terminals are connected in a circuit to the battery measuring unit 161. It is preferable that power is connected to each output terminal of the pack 122a. In addition, it is preferable that the output terminals of the first output switching switching unit 163a and the second output switching switching unit 163b are connected to the input terminal of the first reverse voltage blocking unit 164.

Moreover, the smart power management unit 160 provides the external output terminal 166 between each output terminal of the first output switching switching unit 163a and the second output switching switching unit 163b and the external output terminal 166. ) It is preferable to include the first reverse voltage blocking unit 164 provided to block power input from.

Here, the first reverse voltage blocking unit 164 may be provided as a diode element that allows forward current but blocks reverse current. At this time, each output terminal of the first output switching switching unit 163a and the second output switching switching unit 163b is connected to the input terminal of the first reverse voltage blocking unit 164, and the first reverse voltage blocking unit 164 is connected to the input terminal of the first reverse voltage blocking unit 164. It is preferable that the output terminal of the unit 164 is connected to the external output terminal 166.

Meanwhile, the input/output control unit 168 corresponds to whichever of the first battery pack 121a and the second battery pack 122a has a higher voltage measured through the battery measurement unit 161 and is connected to a power source. It is preferable to apply a discharge signal to one of the first output switching switching unit 163a and the second output switching switching unit 163b. At the same time, the input/output control unit 168 preferably applies an output blocking signal to the other of the first output switching switching unit 163a and the second output switching switching unit 163b.

That is, the input/output control unit 168 performs the first output switching when the voltage of the first battery pack 121a measured through the battery measurement unit 161 is higher than the voltage of the second battery pack 122a. It is preferable to apply a discharge signal to the unit 163a and apply an output blocking signal to the second output switching switching unit 163b. In addition, the input/output control unit 168 performs the first output switching when the voltage of the second battery pack 122a measured through the battery measurement unit 161 is higher than the voltage of the first battery pack 121a. It is preferable to apply an output blocking signal to the unit 163a and a discharge signal to the second output switching switching unit 163b.

For example, referring to FIG. 5A, the input/output control unit 168 measures the respective voltages of the first battery pack 121a and the second battery pack 122a through the battery measurement unit 161. And, if the measured voltage of the first battery pack (121a) measured through the battery measuring unit 161 is 11.6V and the measured voltage of the second battery pack (122a) is 11.4V, the second battery pack ( Since the measured voltage of the first battery pack 121a is greater than 122a), a discharge signal is applied to the first output switching switching unit 163a connected to the first battery pack 121a, and the second output is switched. An output blocking signal can be applied to the switching unit 163b. Through this, the power stored in the first battery pack 121a can be supplied to the external output terminal 166 while the power output from the second battery pack 122a is blocked.

And, when the charging capacity of either the first battery pack 121a or the second battery pack 122a measured through the battery measurement unit 161 is less than a preset value, the input/output control unit 168 It is preferable to apply a discharge signal to the first output switching switching unit 163a and the second output switching switching unit 163b at the same time. At this time, the preset value may be set to 5%, but is not limited to this.

For example, referring to FIG. 5B, in the process of supplying power stored in the first battery pack 121a to the external output terminal 166 while the power output from the second battery pack 122a is blocked, the When the charge capacity of the first battery pack 121a measured through the battery measuring unit 161 is less than 5%, the input/output control unit 168 switches the first output switching switching unit 163a and the second output switching switching unit 163a. By simultaneously applying a discharge signal to the unit 163b, the power stored in the first battery pack 121a and the second battery pack 122a can be simultaneously supplied to the external output terminal 166.

In addition, the input/output control unit 168 detects the discharged battery when the charge capacity of either the first battery pack 121a or the second battery pack 122a measured through the battery measurement unit 161 is completely discharged. In any one of the first output switching switching unit 163a and the second output switching switching unit 163b connected to a power source corresponding to one of the first battery pack 121a and the second battery pack 122a. It is desirable to apply an output blocking signal. At the same time, the input/output control unit 168 preferably applies a discharge signal to the other one of the first output switching switching unit 163a and the second output switching switching unit 163b.

For example, referring to FIG. 5C, when the charging capacity of the first battery pack 121a measured through the battery measuring unit 161 is completely discharged, an output cutoff signal is sent to the first output switching switching unit 163a. However, a discharge signal may be applied to the second output switching switching unit 163b.

Through this, the power stored in the first battery pack (121a) and the second battery pack (122a) is sequentially discharged in the order of the voltage measured through the battery measuring unit 161, and the first battery pack (121a) is discharged sequentially. When the charging capacity of any one of (121a) and the second battery pack (122a) is less than the preset value, the power stored in the first battery pack (121a) and the second battery pack (122a) is simultaneously discharged and the battery is discharged. Since the pack is switched, power supply is provided stably and continuously, and transmission quality can be significantly improved.

Meanwhile, the switching switching unit 163 includes a first input switching switching unit 163c connected to power between the input terminal of the first battery pack 121a and the external input terminal 167, and the second battery pack 122a. ) It is preferable to further include a second input switching switching unit (163d) connected to power between the input terminal of ) and the external input terminal (167).

Here, the first input switching switching unit 163c and the second input switching switching unit 163d may be provided as switching elements. At this time, the first input switching switching unit 163c and the second input switching switching unit 163d are preferably connected to the external input terminal 167, where each input terminal is connected in a circuit to the battery measuring unit 161. In addition, it is preferable that the output terminals of the first input switching switching unit 163c and the second input switching switching unit 163d are connected to the input terminal of the second reverse voltage blocking unit 165.

Moreover, the smart power management unit 160 includes the output terminal of the first input switching switching unit 163c, the input terminal of the first battery pack 121a, the output terminal of the second input switching switching unit 163d, and the first battery pack 121a. It is preferable to include the second reverse voltage cutoff unit 165 provided between the input terminals of the two battery packs 122a to block power output to the external input terminal 167.

Here, the second reverse voltage blocking unit 165 may be provided as a diode element that allows forward current but blocks reverse current. At this time, each output terminal of the first input switching switching unit 163c and the second input switching switching unit 163d is connected to the input terminal of the second reverse voltage blocking unit 165, and the second reverse voltage blocking unit 165 is connected to the input terminal. It is preferable that the output terminal of the unit 165 is connected to an individual power supply to each input terminal of the first battery pack 121a and the second battery pack 122a.

Therefore, the power input from the external output terminal 166 is blocked through the first reverse voltage cutoff unit 164, which allows forward current but blocks reverse current, and the power input is blocked through the second reverse voltage cutoff unit 165. Since the power output to the external input terminal 167 connected to the generator 110 is blocked, the lifespan reduction and explosion due to incorrect connection of the battery pack can be prevented in advance, and the safety of use can be significantly improved.

Meanwhile, when the voltage of the first battery pack 121a and the second battery pack 122a measured through the battery measurement unit 161 is less than the preset first voltage, the input/output control unit 168 detects the first voltage. It is preferable to first apply a charging signal to the input switching switching unit 163c and the second input switching switching unit 163d. At this time, the first voltage is preferably set to less than the full charge voltage preset for each battery pack, and may be set to 12.9V, but is not limited to this.

For example, referring to FIGS. 6A and 6B, the power input from the external input terminal 167 is detected through the battery measurement unit 161, and the first battery pack measured through the battery measurement unit 161 When the voltage of (121a) and the second battery pack (122a) is less than the preset first voltage, the input/output control unit 168 switches on the first input switching switching unit 163c and the second input switching switching unit 163d. By first applying a charging signal to each, power can be charged to the first battery pack 121a and the second battery pack 122a.

In addition, the input/output control unit 168 determines that the voltage of the first battery pack 121a and the second battery pack 122a measured through the battery measurement unit 161 is higher than the first voltage, and the first When the full charge voltage exceeds the voltage, it is preferable to apply an input blocking signal to the first input switching switching unit 163c and the second input switching switching unit 163d for a preset time, respectively.

For example, referring to FIG. 6C, when the voltage of the first battery pack 121a measured through the battery measurement unit 161 reaches 12.9V, which is a preset first voltage, the input/output control unit 168 It is preferable that the power supply to the first battery pack 121a is cut off by secondly applying the input cut-off signal to the 1-input switching switching unit 163c for a preset time.

In addition, the input/output control unit 168 applies an input blocking signal to the first input switching switching unit 163c and the second input switching switching unit 163d for a preset time, respectively, after the preset time has elapsed. Charge the first input switching switching unit 163c and the second input switching switching unit 163d until the voltages of the first battery pack 121a and the second battery pack 122a reach the full charge voltage. It is desirable to apply each signal three times.

For example, referring to FIG. 6D, after applying the input blocking signal to the first input switching switching unit 163c for a preset time, the battery measured through the battery measuring unit 161 as the preset time elapses. The voltage of the first battery pack 121a decreases from 12.9V to 12.5V.

Next, referring to FIG. 6e, the input/output control unit 168 applies an input blocking signal to the first input switching switching unit 163c for a second time for a preset time, respectively, to control the first battery pack after the preset time has elapsed. As the charging signal is applied to the first input switching switching unit 163c for the third time until the voltage of 121a reaches the full charge voltage, the voltage of the first battery pack 121a changes from 12.5 V to 13.0, which is the full charge voltage. It can be charged up to V.

And, when the voltage of the first battery pack 121a and the second battery pack 122a measured through the battery measurement unit 161 reaches the full charge voltage, the input/output control unit 168 It is preferable to apply the input blocking signal to the input switching switching unit 163c and the second input switching switching unit 163d four times, respectively.

For example, referring to FIG. 6F, when the voltage of the first battery pack 121a measured through the battery measurement unit 161 reaches 13.0V, which is the full charge voltage, the input/output control unit 168 controls the first battery pack 121a. As the input cutoff signal is applied four times to the input switching switching unit 163c, charging of the first battery pack 121a is blocked, and the first battery pack 121a measured through the battery measuring unit 161 The voltage may drop from 13.0V to 12.6V.

Through this, if the voltage of the first battery pack (121a) and the second battery pack (122a) is less than the preset first voltage, the first input switching switching unit (163c) and the second input switching switching unit (163d) The charging signal is applied first, and when the first voltage is reached, the input blocking signal is applied secondly, and after the preset time has elapsed, the charging signal is applied in three stages until the full charge voltage exceeding the first voltage is reached. Therefore, damage to the first battery pack 121a and the second battery pack 122a due to overvoltage/overcurrent is prevented, and stable power charging is possible, thereby significantly improving durability.

Meanwhile, the smart power management unit 160 measures the first battery pack ( 121a) and an aging measurement unit 169 that calculates the total energy storage amount and life cycle based on the voltage of the second battery pack 122a. At this time, the aging measurement unit 169 is preferably connected in a circuit to the battery measurement unit 161 and the input/output control unit 168.

Here, in general, as the life cycle of a battery increases, the durability of the battery pack decreases, and as durability decreases, the amount of energy storage also decreases. At this time, the aging measurement unit 169 is preferably provided to calculate the degree of battery aging by comparing the change in life cycle and energy storage amount.

Here, the aging measurement unit 169 individually measures the voltage of the first battery pack 121a and the second battery pack 122a according to the charging and discharging in the smart power management unit 160 and measures the voltage of the first battery pack 121a and the second battery pack 122a. Since the aging state determination for the first battery pack 121a and the second battery pack 122a is performed independently of each other, test reliability can be significantly improved.

Meanwhile, the battery smart management system 200 monitors the voltage, charging capacity, total energy storage amount, and aging measurement result of the first battery pack 121a and the second battery pack 122a in the power switching unit (not shown). Each data is displayed individually and may further include a display unit 40 connected to a circuit to the input/output control unit 168.

At this time, the user can check each data displayed on the display unit 40 and use it to determine charging and replacement times for the first battery pack 121a and the second battery pack 122a.

In this way, the replacement time can be easily confirmed through the smart power management unit 160 by simply connecting an existing battery pack that does not have voltage and charging capacity measurement means, so that the lifespan of one aging battery pack is reduced by other battery packs. Because this is prevented, the service life can be significantly improved.

At this time, terms such as “include,” “comprise,” or “equipped” described above mean that the corresponding component may be present, unless specifically stated to the contrary, excluding other components. It should be interpreted as being able to include other components. All terms, including technical or scientific terms, unless otherwise defined, have the same meaning as generally understood by a person of ordinary skill in the technical field to which the present invention pertains. Commonly used terms, such as terms defined in a dictionary, should be interpreted as consistent with the contextual meaning of the related technology, and should not be interpreted in an idealized or overly formal sense unless explicitly defined in the present invention.

As described above, the present invention is not limited to the above-described embodiments, and modifications and implementations can be made by those skilled in the art without departing from the scope of the claims of the present invention. And such modifications fall within the scope of the present invention.

10,110: Generator 20,120: Battery unit
121: main battery unit 122: auxiliary battery unit
30,130: BMS Department 40,140: Women’s PCB Department
50,150: Charging status display unit 160: Smart power management unit
100,200: Battery smart management system

Claims (12)

delete A generator that produces power through driving force, including a rotor unit that is power-connected to a driving body and rotatably disposed and provided with an excitation coil, and a stator unit wound with an induction coil that forms an inductive magnetic field when the rotor unit rotates;
A main battery unit including a first battery pack that is connected to the generator with a wire and is provided with a plurality of first battery cells connected in parallel to charge and discharge power, and a power supply in parallel with the main battery unit. A battery unit including an auxiliary battery unit including a second battery pack in which a plurality of second battery cells are connected in parallel to charge and discharge power;
A BMS switching unit is provided with a wire connected to the battery unit and the induction coil to individually measure the voltage in the battery unit and the induction coil, and a BMS switching unit connected to the excitation coil with a wire to selectively supply and block excitation current. wealth;
The generator, the battery unit, and the BMS unit are connected by wires and the voltages in the battery unit and the induction coil individually measured by the BMS unit are compared and determined, and the charging voltage of the battery unit and the power generation in the induction coil are determined. an excitation PCB unit for selectively transmitting one of a supply switching signal and a blocking switching signal to the BMS switching unit so that an excitation current is supplied to the excitation coil by comparing a preset buffer voltage below the voltage; and
A battery measuring unit connected to a compatible power supply to each input/output terminal of the first battery pack and the second battery pack and measuring the voltage and charge capacity of the first battery pack and the second battery pack, and one end of the first battery pack An input/output module unit that is individually connected to power to each input/output terminal of the pack and the second battery pack, the other end of which is connected to an external output terminal and an external input terminal, respectively, and a circuit connected to the battery measurement unit and the input/output module unit to input/output power. Including a smart power management unit including an input/output control unit that controls,
The input/output module unit includes a plurality of switching switching units provided between each input/output terminal of the first battery pack and the second battery pack, the external output terminal, and the external input terminal, wherein the switching switching unit is connected to the first battery pack. A first output switching switching unit connected to power between the output terminal and the external output terminal, a second output switching switching unit connected to power between the output terminal of the second battery pack and the external output terminal, and an input terminal of the first battery pack It includes a first input switching switching unit connected to power between the external input terminals, and a second input switching switching unit connected to power between the input terminal of the second battery pack and the external input terminal,
The input/output control unit is connected to one of the first output switching switching unit and the second output switching switching unit connected to the one of the first battery pack and the second battery pack with a higher voltage measured through the battery measurement unit. A discharge signal is applied, and an output blocking signal is applied to the other one of the first output switching switching unit and the second output switching switching unit, and the input/output control unit measures the first battery pack and the When the charging capacity of any one of the second battery packs is less than the preset value, a discharge signal is applied simultaneously to the first output switching switching unit and the second output switching switching unit,
The input/output control unit sends a charging signal to the first input switching switching unit and the second input switching switching unit when the voltage of the first battery pack and the second battery pack measured through the battery measuring unit is less than the preset first voltage. is applied first, respectively, and when the voltage of the first battery pack and the second battery pack measured through the battery measurement unit is greater than the first voltage and less than a full charge voltage exceeding the first voltage, the first input An input blocking signal is applied to the switching switching unit and the second input switching switching unit for a preset time, respectively, and after the preset time has elapsed, the voltages of the first battery pack and the second battery pack are reduced to the full charge voltage. The charging signal is applied three times to the first input switching switching unit and the second input switching switching unit until the voltage is reached, and the voltages of the first battery pack and the second battery pack measured through the battery measuring unit are A battery smart management system characterized by applying an input blocking signal to the first input switching switching unit and the second input switching switching unit a fourth time when the full charge voltage is reached. According to claim 2,
The BMS switching unit is connected with a wire between the BMS unit and the excitation coil, and is selectively short-circuited between the BMS unit and the excitation coil to block the excitation current,
The woman's PC screen is
If the charging voltage of the battery unit is less than the generated voltage in the induction coil and less than the preset buffer voltage, transmitting a supply switching signal to the BMS switching unit so that the excitation current is supplied to the excitation coil,
A battery smart management system characterized in that when the charging voltage of the battery unit is higher than the full charge voltage, a blocking switching signal is transmitted to the BMS switching unit so that the excitation current is blocked by the excitation coil. According to claim 2,
A charging status display unit connected to the female PCB unit and the BMS unit with a wire and selectively displaying the transmission status of the supply switching signal and the blocking switching signal,
The battery smart management system, wherein the charging status display unit is connected to the female PCB unit and the BMS unit with a wire and includes an LED lamp unit that selectively blinks when transmitting the supply switching signal and the blocking switching signal. delete delete delete delete delete According to claim 2,
The smart power management unit
A first reverse voltage blocking unit provided between each output terminal of the first output switching switching unit and the second output switching switching unit and the external output terminal to block power input from the external output terminal.
A device provided between the output terminal of the first input switching switching unit and the input terminal of the first battery pack, and the output terminal of the second input switching switching unit and the input terminal of the second battery pack to block power output to the external input terminal. A battery smart management system characterized by including a two-reverse voltage cutoff unit. delete delete