KR101840619B1 - Battery Experiment Apparatus - Google Patents

Battery Experiment Apparatus Download PDF

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Publication number
KR101840619B1
KR101840619B1 KR1020180004085A KR20180004085A KR101840619B1 KR 101840619 B1 KR101840619 B1 KR 101840619B1 KR 1020180004085 A KR1020180004085 A KR 1020180004085A KR 20180004085 A KR20180004085 A KR 20180004085A KR 101840619 B1 KR101840619 B1 KR 101840619B1
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South Korea
Prior art keywords
voltage
batteries
battery
charging
current
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KR1020180004085A
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Korean (ko)
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이문석
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(주)엠에스엔코리아
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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285Testing apparatus
    • G01R31/3606
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/3644Constructional arrangements
    • G01R31/3646Constructional arrangements for indicating electrical conditions or variables, e.g. visual or audible indicators
    • G01R31/3682
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382Arrangements for monitoring battery or accumulator variables, e.g. SoC

Abstract

In the battery experiment apparatus of the present invention, first, second, and third batteries (15-1, 15-2, 15-3); First, second and third batteries (17-1, 17-2, 17-3) for charging the first, second and third batteries (15-1, 15-2, 15-3) The second and third chargers 17-1, 17-2 and 17-3 can perform slow charging and rapid charging. In the slow charging, (17-1, 17-2, 17-3) outputs the rated voltage of the battery, but in the case of rapid charging, the first, second and third chargers (17-1, 17-2, 17-3) Outputs a voltage about 10% to 30% higher than the rated voltage of the battery; Battery voltage detection resistors (12-1 to 12-6) for detecting voltages of the first, second and third batteries (15-1, 15-2, 15-3); First, second and third battery current sensors (13-1 to 13-3) for detecting currents of the first, second and third batteries (15-1, 15-2, 15-3); First, second and third battery temperature sensors (14-1 to 14-3) for detecting the temperatures of the first, second and third batteries (15-1, 15-2, 15-3); The voltage information detected from the voltage detection resistors 12-1 through 12-6, the current information detected from the first, second and third battery current sensors 13-1 through 13-3, 3, and 15-3 of the first, second, and third batteries 15-1, 15-2, and 15-3 based on the temperature information detected from the three battery temperature sensors 14-1 to 14-3, A main control unit 22 for controlling the temperature; (AC motor / first and second DC motors) for discharging the electric energy charged in the first, second and third batteries (15-1, 15-2, 15-3) and non-degenerating load 1,2,3 Load / lamp / 1st and 2nd LEDs); A DC / AC inverter (19) for supplying an AC voltage to the AC motor; A cooler for cooling the first, second and third batteries (15-1, 15-2, 15-3); And a monitor 100 for comparing and analyzing the charge, discharge voltage, current, charge power, temperature, and cooler operation of the first, second, and third batteries 15-1, 15-2, We propose a battery experiment device.

Description

Battery Experiment Apparatus [0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for comprehensively testing the performance of a battery. More recently, batteries have been used in a variety of consumer and industrial applications, including smart phones, electric vehicles, electric motorcycles, Segway, drone, and rechargeable batteries for renewable energy. Therefore, in the present invention, voltage, current, power, and temperature can be observed in various batteries in a charging and discharging state, and a constant current (CC) mode or a constant voltage (CV) And more particularly, to a battery testing apparatus capable of comprehensively analyzing characteristics of a battery according to a battery life.

In recent years, demand for portable electronic products such as notebooks, video cameras, and smart phones has rapidly increased, and electric vehicles, energy storage batteries, robots, and satellites have been developed in earnest, Research on high performance secondary batteries is actively being carried out.

Li-ion batteries are the most widely used rechargeable batteries since they have the highest energy density. They are currently used as lead-acid batteries (lead storage batteries), nickel-cadmium batteries, nickel-hydrogen batteries and lithium- have.

1 shows a lead-acid battery (lead storage battery). In 1859, Plante (Raimond Louis Gaston) in France developed the first secondary battery, lead battery, using electrochemical reactions such as voltaic cells. Currently lead acid batteries widely used as batteries for automobiles use lead peroxide as an anode, lead as a cathode, and dilute sulfuric acid with a specific gravity of 1.2 as an electrolyte. As the discharge progresses, the anode and the cathode all change to grayish white lead sulfate. As a by-product, water is generated and the reaction rate decreases. However, when the chemical reaction is reversible, In order to obtain a high current, it is necessary to design the area of the electrode to be large, and the electromotive force per cell is about 2 [V], so that 6 cells are connected in series to obtain 12 [V] And is most widely used as a car battery.

2 shows a nickel-cadmium battery. An alkaline battery using nickel (Ni) hydroxide on the anode and cadmium on the cathode, and a small amount of lithium hydroxide added to an aqueous 20% to 25% potassium hydroxide solution. The electromotive force is 1.33 to 1.35 [V] per cell, and it is mechanically strong and has a long life, and is used as a battery for an electric vehicle, a communication battery, a train, a high-speed railway, a power conversion device, a solar cell and a wind power generator.

3 shows a structure of a lithium-ion battery and a comparison with an existing battery.

Lithium-ion batteries were proposed in the 1960s, but the reactivity of lithium is so great that it is difficult to solve the stability problem and it is not practical. In 1991, Sony succeeded in product development and commercialization began. The anode is coated with carbon grains on an aluminum coil, the cathode is coated with carbon grains on a copper coil, an insulator is inserted therebetween, and the battery is packed in an electrolyte to pack the battery into an existing nickel-cadmium battery. This is the second most noteworthy event because of its potential.

As a prior art related to the present invention, Korean Patent Laid-Open Publication No. 10-2015-0122396, published on May 11, 2015 (hereinafter referred to as "Patent Document 1") discloses a charge / discharge characteristic tester for a lithium battery pack . Patent Document 1 discloses a device for testing the degree of suitability, nonconformity, and deterioration of performance of a lithium battery pack. A charging capacity is determined based on the length measurement value of the lithium battery pack. Based on the charging and discharging current values, It is a technical feature to judge and display suitability and non-suitability of characteristics.

In addition, Korean Patent Registration No. 10-1809199, Published on December 15, 2017 (hereinafter referred to as "Patent Document 2") discloses an educational device for battery charging / discharging and cell balancing. In the above-described Patent Document 2, an input / output unit receives cell balancing information of a battery and provides a simulation result, a charging voltage generating unit that generates a charging voltage of the battery, and a cell balancing information input from a user, A processing unit, a battery pack composed of a plurality of batteries, and a load unit for inducing discharge of the battery. And performs a cell balancing simulation for the battery pack according to the cell balancing information received from the user based on the received information and provides the result to the user.

In addition, a multi-battery tester device has been disclosed in Korean Utility Model Registration No. 20-0435564, published on Jan. 31, 2007 (hereinafter referred to as "Patent Document 3"). In the above-described Patent Document 3, the position of the battery mounted by the connection unit is adjusted by selecting a unit for selecting a type of battery, connecting the unit to the selected battery, And a power supply unit for supplying power to the battery. The multi-battery tester according to claim 1, We propose a multi-battery tester device that improves the reliability of the customer by showing the accurate charging capacity in numbers through battery check.

[Patent Document 1] Korean Published Patent Application No. 10-2015-0122396, Publication Date 2015. 11. 02. [Patent Document 2] Korean Registered Patent No. 10-1809199, Published on Dec. 15, 2017. [Patent Document 3] Korean Utility Model Registration No. 20-0435564, published on Jan. 31, 2007.

The present invention proposes a device capable of performing a comprehensive test and muting of the performance of a battery with respect to various batteries, which is more improved than the existing battery tester equipment. Therefore, in the present invention, voltage, current, charging power and temperature can be observed in various batteries in charging and discharging states, and a constant current (CC) mode or a constant voltage (CV) The characteristics of the battery according to the mode can be comprehensively analyzed. Also, it is possible to monitor the characteristics of the battery test apparatus according to the normal charge mode and the rapid charge mode, and to provide a battery test apparatus capable of monitoring the charge characteristics by cooling the heat generated from the battery using the cooler.

In the present invention, in order to achieve the above-mentioned object in the battery testing apparatus, the first, second and third batteries (15-1 to 17-3) ). The first, second and third charging units 17-1 to 17-3 charge the first, second and third batteries 15-1 to 15-3 while charging the first, second and third batteries 15-1 to 15-3. Through 15-3 detect the voltage through the battery voltage detecting resistors 12-1 through 12-6 and detect the current through the first, second and third battery current sensors 13-1 through 13-3 . Also, the temperature of the battery can be detected through the first, second and third battery temperature sensors 14-1 to 14-3.

The first, second and third chargers 17-1 to 17-3 can perform rapid charging and slow charging at all times. In the slow charging, The first, second, and third chargers 17-1 through 17-3 may output about 20% to about 30% of the voltage required by the battery in the case of rapid charging, And outputs a high voltage.

Therefore, characteristics of the first, second, and third batteries 15-1 to 15-3 with respect to voltage, current, charge power, and temperature can be examined according to the slow charging and the quick charging .

In addition, in order to evaluate the discharge characteristics of the first, second and third batteries 15-1 to 15-3, an AC motor 23-1, a lamp (not shown) is connected via a DC / AC inverter 19, The first, second, and third batteries 15-1 to 15-3 may be monitored by using the lamp (lamp) 24-1 and the first load 25-1.

The first and second DC motors 23-2 and 23-3, the first and second LEDs 24-2 and 24-3 and the first and second DC motors 23-2 and 23-3 connected to the first, The discharge characteristics of the first, second and third batteries 15-1 to 15-3 can be monitored by using the second and third loads 25-2 and 25-3.

In the present invention, various characteristics such as the voltage, current, charge power and temperature of the first, second and third batteries 15-1 to 15-3, and whether the cooler is operated or not are checked on a battery management system (BMS: Battery Management System) A battery testing device capable of being displayed on the monitor 100 through the control unit 22 and the central control unit 108 is a solution to the problem.

The battery test apparatus according to the present invention exhibits the following effects of the present invention.

First, for a plurality of first, second and third batteries 15-1 to 15-3 of various types (lead acid batteries, lithium ion batteries, etc.), voltage, current, charge power, temperature And so on.

Second, characteristics of charging, discharging voltage, current, charging power, temperature, etc. are directly applied to the first, second and third batteries 15-1 to 15-3 of various types (lead acid batteries, lithium ion batteries, etc.) Comparison, and analysis.

Third, the first, second and third batteries 15 - 1 to 17 - 3 are charged according to slow charging and rapid charging through variable charging voltages of the first, 1 to 15-3 can be analyzed for voltage, current, charge power, and temperature characteristics.

(AC motor, first and second DC motors) and non-degenerating loads (first, second and third loads, lamps , The first and second LEDs) can be analyzed for characteristics such as voltage, current, charge power, and temperature.

Fifth, by controlling the temperature of the first and second batteries 15-1 and 15-2 through the first and second coolers 20 and 21, the voltage, current, charge power, Can be analyzed.

Sixth, the operation of the first and second coolers 20 and 21 for managing the temperatures of the first and second batteries 15-1 and 15-2 and the operation of the constant current (CC) mode and the constant voltage mode (CV) Current, charge power, temperature, and cooler operation characteristics of the battery can be compared and analyzed according to the constant voltage of the battery.

1 is a cross-
FIG. 2 is a cross-
3 shows the structure of a lithium-ion battery and comparison with an existing battery
Fig.
5 is a front view (a), a rear view (b), and a front view (c)
6 is a detailed circuit diagram of the proposed battery test apparatus
7 is a rear view of the battery test apparatus
FIG. 8 is a graph showing the battery charger layout
9 shows a battery layout
Fig. 10 shows the load and relay
11 is a forward converter circuit diagram (first charger embodiment) of the proposed battery testing apparatus;
12 is a circuit diagram of a boost type converter and a half bridge converter (second charger embodiment)
13 is a circuit diagram of the boost converter and the DC / AC inverter of the proposed battery test apparatus
Fig. 14 is a graph showing the operation of the high voltage step-
FIG. 15 is a graph showing the relationship between the constant current (CC) and the constant voltage (CV) mode graphs according to the normal charge mode and the rapid charge mode
16 is a graph showing various characteristics of the motor and the resistance based on the battery power

The present invention will now be described in detail with reference to the accompanying drawings.
4 shows a front view of a battery test apparatus actually manufactured in the present invention.
The battery test apparatus includes a monitor (100) capable of displaying a voltage, a current, a charging power, a temperature, and the like in a charging and discharging state with respect to a plurality of first, second and third batteries (15-1 to 15-3) Is disposed on the upper side. A main power supply switch 11-1 for determining whether the main power source is connected or not, an external communication port 105 for communicating with the outside, a relay (RY) RY) operation lamp 127, a rapidly changing load (AC motor, first and second DC motors), and non-degenerating loads (first, second and third loads, lamps, first and second LEDs) . The first, second and third LEDs are electrically connected to the rapidly varying load (AC motor, first and second DC motors) and non-degenerating loads (first, second and third loads, 3 load indicating switches 11-2 to 11-4, and first, second and third voltage indicating sections 106 and 106 for displaying the voltages and currents of the first, second and third load connecting switches 11-2 to 11-4, -1 to 106-3 and the first, second and third current display units 106-4 to 106-6 are arranged on the lower side.
5 shows (a) the front, (b) the rear, and (c) sides of the battery testing device.
A heat exhaust vent 140 is provided for heat dissipation of the battery testing device and the rear of the battery testing device rear opening handle 141 is opened to identify the interior of the battery testing device.
6 is a detailed circuit diagram of a battery testing apparatus proposed in the present invention.
The battery testing apparatus includes a main power supply switch 11-1 for determining whether a main power source is connected, a first power source supply switch 11-1 for charging the first, second and third batteries 15-1 to 15-3, (AC motors, first and second DC motors) for discharging the first, second and third chargers 17-1 to 17-3, the first, second and third batteries 15-1 to 15-3, (1 st, 3 rd load, lamp, first and second LEDs), the AC motor 23-1, the lamp 24-1, and the first load 25-1 A DC / AC inverter 19 for supplying an AC voltage, a plurality of relays RY1 to RY15 for determining the electrical connection of the respective parts, and a plurality of first and second batteries 15-1 and 15-2 The first and second coolers 20 and 21 for cooling the plurality of relays RY1 to RY15, the first and second and third chargers 17-1 to 17-3, the first and second coolers 20 and 20, , A main control unit 22 for detecting and collectively detecting voltage and current, a central control unit 108 for communicating with the main control unit 22, It consists of a monitor 100 for display.
The battery testing apparatus includes first, second and third batteries 17-1 to 17-3 for charging the first, second and third batteries 15-1 to 15-3. The first, second and third charging units 17-1 to 17-3 charge the first, second and third batteries 15-1 to 15-3 while charging the first, second and third batteries 15-1 to 15-3. To 15-3) detects the voltage through the battery voltage detecting resistors 12-1 to 12-6, and detects the current through the first, second and third battery current sensors 13-1 to 13-3. Also, the temperature of the battery can be detected through the first, second and third battery temperature sensors 14-1 to 14-3.
The first, second and third chargers 17-1 to 17-3 can perform rapid charging and slow charging at all times. In the slow charging, The first, second and third battery chargers 17-1 to 17-3 may output about 10 to 30% of the voltage required by the battery in the case of rapid charging, And outputs a high voltage.
Therefore, characteristics of the first, second, and third batteries 15-1 to 15-3 with respect to voltage, current, charge power, and temperature can be examined according to the slow charging and the quick charging .
In addition, in order to evaluate the discharge characteristics of the first, second and third batteries 15-1 to 15-3, an AC motor 23-1, a lamp (not shown) is connected via a DC / AC inverter 19, The first, second, and third batteries 15-1 to 15-3 may be monitored by using the lamp (lamp) 24-1 and the first load 25-1.
The first and second DC motors 23-2 and 23-3, the first and second LEDs 24-2 and 24-3 and the first and second DC motors 23-2 and 23-3 connected to the first, The discharge characteristics of the first, second and third batteries 15-1 to 15-3 can be monitored by using the second and third loads 25-2 and 25-3.
In the present invention, various characteristics such as the voltage, current, charge power and temperature of the first, second and third batteries 15-1 to 15-3, and whether the cooler is operated or not are checked on a battery management system (BMS: Battery Management System) A control unit 22, and a central control unit 108, as shown in FIG.
Accordingly, the battery test apparatus can be configured such that, first, a plurality of first, second, and third batteries 15-1 to 15-3 of various types (lead acid batteries, lithium ion batteries, etc.) , Current, charge power, temperature and so on. Second, characteristics of charging, discharging voltage, current, charging power, temperature, etc. are directly applied to the first, second and third batteries 15-1 to 15-3 of various types (lead acid batteries, lithium ion batteries, etc.) Comparison, and analysis. Third, the first, second and third batteries 15 - 1 to 17 - 3 are charged according to slow charging and rapid charging through variable charging voltages of the first, 1 to 15-3 can be analyzed for voltage, current, charge power, and temperature characteristics. (AC motor, first and second DC motors) and non-degenerating loads (first, second and third loads, lamps , The first and second LEDs) can be analyzed for characteristics such as voltage, current, charge power, and temperature. Fifth, by controlling the temperature of the first and second batteries 15-1 to 15-3 through the first and second coolers 20 and 21, the voltage, current, charge power, Can be analyzed. Sixth, the operation of the first and second coolers 20 and 21 for managing the temperatures of the first and second batteries 15-1 to 15-3 and the operation of the constant current (CC) mode and the constant voltage mode (CV) There is an increased effect of comparing and analyzing the characteristics of the battery voltage, current, charge power, temperature, and cooler operation according to the constant voltage.
Fig. 7 shows a rear view of the battery test apparatus.
A monitor 100 is disposed on the upper side of the battery test apparatus, and there are a plurality of relays 10 and a plurality of batteries 15-1 and 15-2 for determining respective electrical connections.
The first and second chargers 17-1 and 17-2 for charging the first and second batteries 15-1 and 15-2, the first and second chargers 17-1 and 17-2 for charging the first and second batteries 15-1 and 15-2, A load 25 for discharging electric power, a DC / AC inverter 19 for converting DC into AC, and the like.
Figure 8 shows a battery lab device charger layout.
The battery charger of the battery testing device includes first and second chargers 17-1 and 17-2, a DC / AC inverter 19, a relay 10, and the like.
9 shows a battery layout diagram.
The first and second batteries 15-1 and 15-2 are respectively provided with first and second battery temperature sensors 14-1 and 14-2 for detecting the temperature of the first and second batteries 15-1 and 15-2. The first and second coolers 20 and 21 for cooling the temperature of the first and second coolers are disposed in the first and second coolers, and the coolant flows in the first and second coolers to cool the first and second coolers .
10 shows the load and the relay of the battery test apparatus.
The electrical connection to the load (25) of the battery testing device is conceivable. A plurality of relays 10 are arranged.
Fig. 11 shows a forward converter circuit diagram (first charger embodiment) of the proposed battery test apparatus.
The charger can be selectively determined according to the capacity of the first, second, and third batteries 15-1 to 15-3. FIG. 11 shows a forward converter circuit diagram (first charger embodiment) for charging a small capacity battery.
11 (a) shows that the inductor of the primary side of the transformer is a coupling inductor, and FIG. 11 (b) shows that the inductor of the primary side and the secondary side of the transformer are coupled inductors.
11A and 11B show a rectifying diode 26 for rectifying the main power supply 18 and a second and third rectifying diode 26 for improving the power factor of the power rectified through the rectifying diode 26, Three inductors 30-2 and 30-3 are arranged in the first and second inductors 30-2 and 30-3 and the first and second diodes 26- 5, 26-6) are disposed.
A fourth inductor 30-4 and a third diode 26-7, which are stored in the transformer 32 of the forward converter to prevent saturation of the transformer 32, and a current flowing in the transformer 32 A main switch 151 of a forward converter for controlling the on and off states of the electric power to deliver electric energy to the secondary side of the transformer, a fifth and sixth diodes 26- 9, 26-10), a fourth inductor 30-5 and a third capacitor 28-3 for reducing the output voltage and current ripple.
The forward converter is intended to supply the final output voltage to the battery at the same time as power factor improvement with a single power stage.
11 (a), the transformer 32 and the second, third, and fourth inductors 30-2, 30-3, and 30-4 are magnetically coupled. FIG. 11 (b) Second and third inductors 30-2, 30-3 and 30-4 are magnetically coupled and the transformer 32 and the fifth inductor 30-5 are magnetically coupled Is a technical feature.
The transformer 32, the second and third and fourth inductors 30-2, 30-3 and 30-4, the transformer 32 and the fifth inductor 30-5, which are magnetically coupled in this embodiment, The power factor improving characteristic is improved, and the number of inductors is reduced, so that it is possible to charge the small capacity battery.
12 shows a boost converter and a half bridge converter circuit diagram (second charger embodiment) of the proposed battery experiment device. In FIG. 12, there is a step-up type converter for improving the power factor as a charger for charging a large capacity battery, and a half bridge converter for supplying electric energy to the battery.
In the proposed battery test apparatus, the multiplying-type converter performs the function of improving the power factor of the input power source, detects the input voltage waveform at the input terminal first voltage sensor 27, Type converter according to the current information of the main switch 45 of the step-up type converter and the output voltage information of the second voltage sensor 36 in the main switch current sensor 50 of the step-up type converter, And the power factor of the input terminal is improved by performing on and off control.
The half bridge converter further divides the input DC power sources 41 and 42 through the first and second voltage dividing capacitors 49-1 and 49-2 and supplies the input DC power to the half bridge transformer 49 through the upper switch 46 and the lower switch 47, And the first and second center tap diodes 40-1 and 40-2.


The battery voltage sensor 35, the battery current sensor 34-2, the switch current sensor 50-1 of the half bridge converter, and the transformer current sensor 50-1 of the half bridge converter are used to charge the battery 15 with a safe voltage and current. Bridge converter based on the voltage and current information from the control unit 50-2 through the control unit 75 of the half bridge converter.
13 shows a circuit diagram of a boost converter and a DC / AC inverter of the battery test apparatus proposed.
13 is a circuit for converting the energy stored in the battery 15 into an AC voltage.
The voltage of the battery 15 is generally a DC low voltage (DC 12 [V] to 30 [V]) and an AC voltage outputted is AC 80 [V] to 240 [V]. Therefore, the boost converter 200 for boosting the DC low voltage (DC 12 [V] to 30 [V]) of the battery 15 includes the high-boost inductor 55, the first to fifth boost diodes 52- 1 to 52-5, and first to fifth high booster capacitors 53-1 to 53-5.
The detailed operation of the high voltage step-up converter 200 is analyzed by mode in FIG.
Up converter 200 boosts DC 12 [V] to 30 [V] to DC 380 [V] to 400 [V]. In addition, the half bridge inverter 300 is configured in a half bridge system.
And an eleventh and twelfth divided capacitors 53-6 and 53-7 for dividing the output voltage of the high voltage step-up converter 200. The upper and lower switches 54-2 and 54- 3). The control unit 79 of the DC / AC inverter detects the AC voltage and detects current information from the inverter switch current sensor 56-2, the inverter transformer current sensor 56-3, and the inverter output current sensor 56-4 And AC voltage of AC 80 [V] to 240 [V] is output through control of the upper and lower switches 54-2 and 54-3.
14 shows the operation of each of the boost converter according to modes.
14 (a) shows a state in which the high voltage step-up switch 54-1 of the high voltage step-up converter 200 is turned on and energy is stored in the high voltage step-up inductor 55 from the battery 15, The high voltage capacitors 53-1 to 53-4 are charged with a uniform voltage.
14 (b) shows a state in which the high voltage step-up switch 54-1 of the high voltage step-up converter 200 is turned off, the polarity of the high voltage step-up inductor 55 is inverted, The voltage of the battery 15, the voltage of the high booster inductor 55 and the voltage of the third high booster capacitor 53-3 are summed up so that the output direct voltage becomes DC 380 [V] to 400 [V] It is a technical feature.
15 shows a graph of a constant current (CC) and a constant voltage (CV) mode according to the normal charging mode and the rapid charging mode.
15 (a) to 15 (d) show a normal charge mode, and FIGS. 15 (e) to 15 (h) show an embodiment of a rapid charge mode. Both the normal charging mode and the rapid charging mode are repeated in the constant current mode (CC) mode and the constant voltage mode (CV: constant mode).
(CC) mode, a constant voltage (CV) mode, a constant current (CC) mode, and a constant voltage (CV) mode of FIG. 15 (a) to FIG. 15 (d). In the constant current mode (CC) mode in the normal charging mode, the battery current rapidly increases, and the battery temperature rises.
In the normal charging mode, no refrigerant is supplied to the battery, and the battery operates in a constant current (CC) mode until the temperature of the battery reaches a specific (specific) temperature, and thereafter operates in a constant voltage (CV) mode. do.
15 (e) to 15 (h), there are only two modes of the constant current (CC) mode and the constant voltage (CV) mode. In the constant current mode, the current rapidly increases, and the refrigerant is supplied to the battery. The battery 15 is charged in the constant current (CC) mode up to about 80%, and thereafter charged in the constant voltage (CV) mode. Therefore, the coolers 20 and 21 adjust the supply amount of the coolant (refrigerant) in consideration of the temperature of the battery. In the constant current (CC) mode, the current rapidly increases to rapidly increase the temperature of the battery, (CV) mode, the current gradually decreases, and the temperature of the battery gradually increases. Therefore, the supply amount of the refrigerant is relatively small.
16 shows graphs of various characteristics of the motor and the resistor based on the battery power.
16 (b) and 16 (c) show the voltage [Vmotor] and the current [Imotor] of the motor, ].
16 (d) and 16 (e) show the voltage [VR] and the current [IR] of the resistance which is the non-degenerating load (first, second and third loads).

A battery testing device comprising: first, second and third batteries (15-1, 15-2, 15-3); First, second and third batteries (17-1, 17-2, 17-3) for charging the first, second and third batteries (15-1, 15-2, 15-3) The second and third chargers 17-1, 17-2 and 17-3 can perform slow charging and rapid charging. In the slow charging, (17-1, 17-2, 17-3) outputs the rated voltage of the battery, but in the case of rapid charging, the first, second and third chargers (17-1, 17-2, 17-3) Outputs a voltage about 10% to 30% higher than the rated voltage of the battery; Battery voltage detection resistors (12-1 to 12-6) for detecting voltages of the first, second and third batteries (15-1, 15-2, 15-3); First, second and third battery current sensors (13-1 to 13-3) for detecting currents of the first, second and third batteries (15-1, 15-2, 15-3); First, second and third battery temperature sensors (14-1 to 14-3) for detecting the temperatures of the first, second and third batteries (15-1, 15-2, 15-3); The voltage information detected from the voltage detection resistors 12-1 through 12-6, the current information detected from the first, second and third battery current sensors 13-1 through 13-3, 3, and 15-3 of the first, second, and third batteries 15-1, 15-2, and 15-3 based on the temperature information detected from the three battery temperature sensors 14-1 to 14-3, A main control unit 22 for controlling the temperature; (AC motor / first and second DC motors) for discharging the electric energy charged in the first, second and third batteries (15-1, 15-2, 15-3) and non-degenerating load 1,2,3 Load / lamp / 1st and 2nd LEDs); A DC / AC inverter 19 for supplying an AC voltage to the AC motor; the DC / AC inverter 19 is connected to the first, second and third batteries 15-1, 15-2, 15 Up converter 200 that boosts the DC 12 [V] to 30 [V] of the high voltage step-up converter 200 from DC 380 [V] to 400 [V] And a half bridge inverter 300 for converting the voltage of [V] to an AC voltage of AC 80 [V] to 240 [V]; A cooler for cooling the first, second and third batteries (15-1, 15-2, 15-3); And a monitor 100 for comparing and analyzing the charge, discharge voltage, current, charge power, temperature, and cooler operation of the first, second, and third batteries 15-1, 15-2, We propose a battery experiment device.

Also, in the present invention, in the battery testing apparatus, the first, second, and third batteries (15-1, 15-2, 15-3); A main power 18 is supplied to charge the first, second and third batteries 15-1, 15-2 and 15-3, and the first, second and third batteries 15-1, The first, second, and third chargers 17-1, 17-2, and 17-3 located at the front ends of the first, second, and third chargers 17-1, 17-2 and 17-3 can perform slow charging and rapid charging. In the slow charging, the first, second and third charging units 17-1, 17-2, 17-3, and 17-3) output a rated voltage of the battery. In the case of rapid charging, the first, second, and third chargers 17-1, 17-2, % Output high voltage; In order to detect the voltages of the first, second and third batteries (15-1, 15-2, 15-3), the first, second and third batteries (15-1, 15-2, 15-3) Battery voltage detecting resistors 12-1 to 12-6 located between the first, second, and third chargers 17-1, 17-2, and 17-3; The first, second and third batteries (15-1, 15-2, 15-3) and the first, second and third batteries (15-1, 15-2, 15-3) First, second and third battery current sensors (13-1 to 13-3) positioned between the first, second, and third chargers (17-1, 17-2, 17-3); In order to detect the temperatures of the first, second and third batteries 15-1, 15-2 and 15-3, first, second and third battery temperature sensors 14- 1 to 14-3); The voltage information detected from the voltage detection resistors 12-1 through 12-6, the current information detected from the first, second and third battery current sensors 13-1 through 13-3, 3, and 15-3 of the first, second, and third batteries 15-1, 15-2, and 15-3 based on the temperature information detected from the three battery temperature sensors 14-1 to 14-3, A main control unit 22 for controlling the temperature; The rapid changeable load for consuming electric energy charged in the first, second and third batteries 15-1, 15-2 and 15-3, the rapid changeable load is 80 [V] to 240 [ V] and the first and second direct current motors 23-2 and 23-3 that are supplied with a direct current (DC) voltage; The non-degenerative load for consuming electric energy charged in the first, second and third batteries (15-1, 15-2, 15-3) 25-2, 25-3, a lamp 24-1, and first and second LEDs 24-2, 24-3; A DC / AC inverter 19 for supplying an AC voltage to the AC motor 23-1; a DC / AC inverter 19 for supplying AC voltage to the high voltage converter 200 and the half bridge An inverter 300;
The high voltage step-up converter 200 includes a high voltage step-up inductor 55, a high voltage step-up switch 54-1, first to fifth high voltage step-up diodes 52-1 to 52-5 connected in series, High-booster capacitors 53-1 to 53-5; When the high boosting switch 54-1 is turned on, the first high boosting capacitor 53-1 and the second high boosting capacitor 53-2 are charged to the same voltage, The booster capacitor 53-3 and the fourth high booster capacitor 53-4 are charged to the same voltage; When the high voltage step-up switch 54-1 is turned off, the voltages of the first, second and third batteries 15-1, 15-2 and 15-3, the voltage of the high voltage step-up inductor 55, The voltage of the third high booster capacitor 53-3 is summed and outputted to the fifth high booster capacitor 53-5 so that the voltages of the first, second and third batteries 15-1, 15-2, Boosts direct current (DC) 12 [V] to 30 [V] to direct current (DC) 380 [V] to 400 [V] through the high voltage step-up converter 200; And the upper and lower switches 54-2 and 54-3 of the half bridge inverter 300 are driven alternately by supplying the direct current (DC) voltages of 380 [V] to 400 [V] (AC) 80 [V] to 240 [V] to drive the AC motor 23-1; A cooler for cooling the first, second and third batteries (15-1, 15-2, 15-3); A monitor (not shown) for comparing and analyzing the charge voltage, the discharge voltage, the charge current, the discharge current, the charge power, the temperature, and the cooler operation of the first, second, and third batteries 15-1, 15-2, 100). ≪ / RTI >

The present invention can be applied to a battery testing apparatus by a person skilled in the art by various modifications, and it should be recognized that the scope of the technology which is technically easy to modify also belongs to the scope of the present patent.

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10: Relay
10-1: First relay (RY1)
10-2: Second relay (RY2)
10-3: Third relay (RY3)
10-4: Fourth relay (RY4)
10-5: the fifth relay (RY5)
10-6: The sixth relay (RY6)
10-7: Seventh relay (RY7)
10-8: Relay 8 (RY8)
10-9: Relay 9 (RY9)
10-10: Relay 10 (RY10)
10-11: the eleventh relay (RY11)
10-12: Relay 12 (RY12)
10-13: the thirteenth relay (RY13)
10-14: Relay 14 (RY14)
10-15: 15th relay (RY15)
11-1: Main power supply switch
11-2: First load connecting switch
11-3: second load connecting switch
11-4: Third load connecting switch
12-1: first battery voltage detection first resistance
12-2: first battery voltage detection second resistance
12-3: second battery voltage detection first resistance
12-4: second battery voltage detection second resistance
12-5: Third battery voltage detection first resistance
12-6: third battery voltage detection second resistance
12-7: AC motor voltage detection 1st resistor
12-8: AC motor voltage detection 2nd resistor
12-9: Lamp voltage detection first resistance
12-10: Lamp voltage detection second resistance
12-11: First load voltage detection first resistance
12-12: First load voltage detection second resistance
12-13: First DC motor voltage detection first resistance
12-14: first DC motor voltage detection second resistance
12-15: First LED voltage detection first resistance
12-16: first LED voltage detection second resistance
12-17: Second load voltage detection first resistance
12-18: second load voltage detection second resistance
12-19: Second DC motor voltage detection first resistance
12-20: second DC motor voltage detection second resistance
12-21: Second LED voltage detection first resistance
12-22: second LED voltage detection second resistance
12-23: Third load voltage detection 1st resistor
12-24: third load voltage detection second resistance
13-1: first battery current sensor
13-2: Second battery current sensor
13-3: Third battery current sensor
13-4: AC motor current sensor
13-5: Lamp current sensor
13-6: First load current sensor
13-7: 1st DC motor current sensor
13-8: 1st LED current sensor
13-9: Second load current sensor
13-10: Second DC motor current sensor
13-11: Second LED current sensor
13-12: Third load current sensor
14-1: first battery temperature sensor
14-2: Second battery temperature sensor
14-3: Third battery temperature sensor
15: Battery
15-1: First battery
15-2: Second battery
15-3: Third battery
16-1: Encoder of AC motor
16-2: Encoder of the first DC motor
16-3: Encoder of the second DC motor
17-1: First charger
17-2: Second charger
17-3: Third charger
18: Main power
19: DC / AC Inverter
20: first cooler
21: second cooler
22:
22-1: Relay controller
22-2: Battery voltage detector
22-3: Battery current detector
22-4: Relay controller
22-5: battery cooling control section
22-6: Motor voltage detector
22-7: motor current detecting section
22-8: Motor speed detector
22-9: Lamp or LED current detection unit
22-10: Lamp or LED voltage detector
22-11: load current detecting section
22-12: Load voltage detector
22-13: External communication connection
23-1: AC motor
23-2: First DC motor
23-3: Second direct current motor
24-1: Lamp
24-2: First LED
24-3: Second LED
25: Load
25-1: First load
25-2: second load
25-3: Third load
26: rectifier diode
26-1: First rectifying diode
26-2: second rectifier diode
26-3: third rectifier diode
26-4: Fourth rectifier diode
26-5: First diode
26-6: Second diode
26-7: Third diode
26-8: fourth diode
26-9: fifth diode
26-10: sixth diode
28-1: First capacitor
28-2: second capacitor
28-3: Third capacitor
30-1: a first inductor
30-2: Second inductor
30-3: Third inductor
30-4: fourth inductor
30-5: Fifth inductor
32: Transformer of forward converter
34-1: Switch current sensor
34-2: Battery current sensor
35: Battery voltage sensor
36: first voltage sensor
37: High booster voltage sensor
38: Inverter output voltage sensor
39: Output diode
40-1: first center tap diode
40-2: second center tap diode
41: (+) Power supply
42: (-) Power supply
45: Main switch of boost converter
46: upper switch
47: Lower switch
48: Output capacitor
49-1: first divided capacitor
49-2: Second partial voltage capacitor
49-3: Output capacitor
50: Main switch current sensor of boost converter
50-1: Switch current sensor of half bridge converter
50-2: Transformer current sensor of half bridge converter
51: Half bridge transformer
52-1: First high-booster diode
52-2: Second high-booster diodes
52-3: Third High-Boost Diode
52-4: fourth high-voltage diode
52-5: fifth high-booster diodes
53-1: first high booster capacitor
53-2: second high booster capacitor
53-3: Third High-Booster Capacitor
53-4: fourth high booster capacitor
53-5: fifth high booster capacitor
53-6: 11th partial voltage capacitor
53-7: 12th partial voltage capacitor
54-1: High-voltage switch
54-2: DC / AC inverter upper switch
54-3: DC / AC inverter bottom switch
55: High boost inductor
56-1: Current sensor of high booster switch
56-2: Inverter switch current sensor
56-3: Inverter transformer current sensor
56-4: Inverter output current sensor
57: Inverter transformer
70: Control of forward converter
74: Control of the step-up converter
75: Control of half bridge converter
78: Control of high booster converter
79: Control of DC / AC inverter
88: First AC output
89: Second AC output
90: (+) High-voltage power source
91: (-) High-voltage power source
100: Monitor
101-1: First Buzzer (Buzzer)
101-2: Second Buzzer (Buzzer)
105: External communication port (Port)
106-1: first voltage indicator
106-2: second voltage display section
106-3: Third voltage display unit
106-4: first current indicator
106-5: second current indicator
106-6: a third current indicator
107: Keyboard
108:
127: Relay (RY) operation lamp
130-1: First wheel
130-2: the second wheel
130-3: Third wheel
130-4: fourth wheel
140: Heat exhaust vent
141: battery test device rear opening handle
150: Battery tester device
151: Main switch of forward converter
160: Primary side magnetic coupling of transformer
170: Transformer secondary side magnetic coupling
200: High boost converter
300: Half bridge inverter
AC1: 1st AC output
AC2: Second AC output
CC: Constant current mode
CV: Constant Voltage mode
Imotor: Motor current
IR: current of resistance
rpm: Number of revolutions per minute of motor
t0: Charge start time
t1: Conversion time from the first constant current mode to the constant voltage mode
t2: Conversion time from the first constant voltage mode to the constant current mode
t3: Conversion time from second constant current mode to constant voltage mode
Vmotor: Voltage of motor
VR: Voltage of the resistor

Claims (12)

  1. In a battery testing apparatus,
    First, second and third batteries (15-1, 15-2, 15-3);
    A main power 18 is supplied to charge the first, second and third batteries 15-1, 15-2 and 15-3, and the first, second and third batteries 15-1, 1 and 3 and the third and fourth charging units 17-1, 17-2 and 17-3 located at the front ends of the first, second and third charging units 17-1, 17-2 and 17-3 can perform slow charging and rapid charging. In the slow charging, the first, second and third charging units 17-1, 17-2, 17-3, and 17-3) output a rated voltage of the battery. In the case of rapid charging, the first, second, and third chargers 17-1, 17-2, % Output high voltage;
    In order to detect the voltages of the first, second and third batteries (15-1, 15-2, 15-3), the first, second and third batteries (15-1, 15-2, 15-3) Battery voltage detecting resistors 12-1 to 12-6 located between the first, second, and third chargers 17-1, 17-2, and 17-3;
    The first, second and third batteries (15-1, 15-2, 15-3) and the first, second and third batteries (15-1, 15-2, 15-3) First, second and third battery current sensors (13-1 to 13-3) positioned between the first, second, and third chargers (17-1, 17-2, 17-3);
    In order to detect the temperatures of the first, second and third batteries 15-1, 15-2 and 15-3, first, second and third battery temperature sensors 14- 1 to 14-3);
    The voltage information detected from the voltage detection resistors 12-1 through 12-6, the current information detected from the first, second and third battery current sensors 13-1 through 13-3, 3, and 15-3 of the first, second, and third batteries 15-1, 15-2, and 15-3 based on the temperature information detected from the three battery temperature sensors 14-1 to 14-3, A main control unit 22 for controlling the temperature;
    The rapid changeable load for consuming electric energy charged in the first, second and third batteries 15-1, 15-2 and 15-3, the rapid changeable load is 80 [V] to 240 [ V] and the first and second direct current motors 23-2 and 23-3 that are supplied with a direct current (DC) voltage;
    The non-degenerative load for consuming electric energy charged in the first, second and third batteries (15-1, 15-2, 15-3) 25-2, 25-3, a lamp 24-1, and first and second LEDs 24-2, 24-3;
    A DC / AC inverter 19 for supplying an AC voltage to the AC motor 23-1; a DC / AC inverter 19 for supplying AC voltage to the high voltage converter 200 and the half bridge An inverter 300;
    The high voltage step-up converter 200 includes a high voltage step-up inductor 55, a high voltage step-up switch 54-1, first to fifth high voltage step-up diodes 52-1 to 52-5 connected in series, High-booster capacitors 53-1 to 53-5;
    When the high boosting switch 54-1 is turned on, the first high boosting capacitor 53-1 and the second high boosting capacitor 53-2 are charged to the same voltage, The booster capacitor 53-3 and the fourth high booster capacitor 53-4 are charged to the same voltage;
    When the high voltage switch 54-1 is turned off, the voltages of the first, second, and third batteries 15-1, 15-2, and 15-3, the voltage of the high voltage boost inductor 55, The voltage of the third high booster capacitor 53-3 is summed and outputted to the fifth high booster capacitor 53-5 so that the voltages of the first, second and third batteries 15-1, 15-2, Boosts direct current (DC) 12 [V] to 30 [V] to direct current (DC) 380 [V] to 400 [V] through the high voltage step-up converter 200;
    And the upper and lower switches 54-2 and 54-3 of the half bridge inverter 300 are driven alternately by supplying the direct current (DC) voltages of 380 [V] to 400 [V] (AC) from 80 [V] to 240 [V] to drive the AC motor (23-1)
  2. In a battery testing apparatus,
    First, second and third batteries (15-1, 15-2, 15-3);
    A main power 18 is supplied to charge the first, second and third batteries 15-1, 15-2 and 15-3, and the first, second and third batteries 15-1, 1 and 3 and the third and fourth charging units 17-1, 17-2 and 17-3 located at the front ends of the first, second and third charging units 17-1, 17-2 and 17-3 can perform slow charging and rapid charging. In the slow charging, the first, second and third charging units 17-1, 17-2, 17-3, and 17-3) output a rated voltage of the battery. In the case of rapid charging, the first, second, and third chargers 17-1, 17-2, % Output high voltage;
    In order to detect the voltages of the first, second and third batteries (15-1, 15-2, 15-3), the first, second and third batteries (15-1, 15-2, 15-3) Battery voltage detecting resistors 12-1 to 12-6 located between the first, second, and third chargers 17-1, 17-2, and 17-3;
    The first, second and third batteries (15-1, 15-2, 15-3) and the first, second and third batteries (15-1, 15-2, 15-3) First, second and third battery current sensors (13-1 to 13-3) positioned between the first, second, and third chargers (17-1, 17-2, 17-3);
    In order to detect the temperatures of the first, second and third batteries 15-1, 15-2 and 15-3, first, second and third battery temperature sensors 14- 1 to 14-3);
    The voltage information detected from the voltage detection resistors 12-1 through 12-6, the current information detected from the first, second and third battery current sensors 13-1 through 13-3, 3, and 15-3 of the first, second, and third batteries 15-1, 15-2, and 15-3 based on the temperature information detected from the three battery temperature sensors 14-1 to 14-3, A main control unit 22 for controlling the temperature;
    The rapid changeable load for consuming electric energy charged in the first, second and third batteries 15-1, 15-2 and 15-3, the rapid changeable load is 80 [V] to 240 [ V] and the first and second direct current motors 23-2 and 23-3 that are supplied with a direct current (DC) voltage;
    The non-degenerative load for consuming electric energy charged in the first, second and third batteries (15-1, 15-2, 15-3) 25-2, 25-3, a lamp 24-1, and first and second LEDs 24-2, 24-3;
    A DC / AC inverter 19 for supplying an AC voltage to the AC motor 23-1; a DC / AC inverter 19 for supplying AC voltage to the high voltage converter 200 and the half bridge An inverter 300;
    The high voltage step-up converter 200 includes a high voltage step-up inductor 55, a high voltage step-up switch 54-1, first to fifth high voltage step-up diodes 52-1 to 52-5 connected in series, High-booster capacitors 53-1 to 53-5;
    When the high boosting switch 54-1 is turned on, the first high boosting capacitor 53-1 and the second high boosting capacitor 53-2 are charged to the same voltage, The booster capacitor 53-3 and the fourth high booster capacitor 53-4 are charged to the same voltage;
    When the high voltage switch 54-1 is turned off, the voltages of the first, second, and third batteries 15-1, 15-2, and 15-3, the voltage of the high voltage boost inductor 55, The voltage of the third high booster capacitor 53-3 is summed and outputted to the fifth high booster capacitor 53-5 so that the voltages of the first, second and third batteries 15-1, 15-2, Boosts direct current (DC) 12 [V] to 30 [V] to direct current (DC) 380 [V] to 400 [V] through the high voltage step-up converter 200;
    And the upper and lower switches 54-2 and 54-3 of the half bridge inverter 300 are driven alternately by supplying the direct current (DC) voltages of 380 [V] to 400 [V] (AC) 80 [V] to 240 [V] to drive the AC motor 23-1;
    A cooler for cooling the first, second and third batteries (15-1, 15-2, 15-3);
    A monitor (not shown) for comparing and analyzing the charge voltage, the discharge voltage, the charge current, the discharge current, the charge power, the temperature, and the cooler operation of the first, second, and third batteries 15-1, 15-2, 100)
  3. The method according to claim 1 or 2,
    And the charging device is constituted by only two modes of the constant current (CC) mode and the constant voltage (CV) mode in the rapid charging.
  4. The method of claim 3,
    Characterized in that the battery charging power is charged in a constant current (CC) mode from 0 to 80% and the remaining 20% is charged in a constant voltage (CV) mode in the rapid charging.
  5. The method according to claim 2,
    And the cooler for supplying the coolant to the first, second and third batteries (15-1, 15-2, 15-3) operates in the rapid charging.
  6. The method according to claim 1 or 2,
    Wherein charging is performed alternately in a constant current (CC) mode, a constant voltage (CV) mode, a constant current (CC) mode, and a constant voltage (CV) mode in the slow charging.
  7. The method according to claim 1 or 2,
    The first, second, and third charging units 17-1, 17-2, and 17-3 are forward converter systems that can improve the power factor and charge the battery by one main switch 151. [
  8. The method of claim 7,
    In the forward converter system, the second and third inductors 30-2 and 30-3 are disposed to improve the power factor of the power source, and the second and third inductors 30-2 and 30-3, Wherein the first and second diodes (26-5, 26-6) are arranged in a predetermined (specific)
  9. The method according to claim 1 or 2,
    Wherein the first, second, and third chargers (17-1, 17-2, 17-3) comprise a step-up converter and a half bridge converter
  10. The method according to claim 1 or 2,
    The half bridge inverter (300) outputs an AC voltage of AC (80 [V] to 240 [V]) through an inverter transformer (57) for electrical stability.
  11. The method according to claim 2,
    Wherein the cooler controls the supply amount of the coolant (refrigerant) in consideration of the temperature of the battery.
  12. The method according to claim 2,
    The central control unit 108 calculates the charging voltage, the discharging voltage, the charging current, and the charging current of the first, second, and third batteries 15-1, 15-2, 15-3 based on the user's command recognized through the keyboard 107 , The discharge current, the charging power, the temperature, and the operation of the cooler are compared and analyzed and displayed through the monitor (100)
KR1020180004085A 2018-01-11 2018-01-11 Battery Experiment Apparatus KR101840619B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004248405A (en) * 2003-02-13 2004-09-02 Fuji Heavy Ind Ltd Battery managing device of vehicle
JP4413888B2 (en) * 2006-06-13 2010-02-10 株式会社東芝 Storage battery system, in-vehicle power supply system, vehicle, and method for charging storage battery system
JP5110913B2 (en) * 2007-02-28 2012-12-26 三洋電機株式会社 Power supply
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