JP5512772B2 - Charge / discharge test system, calibration unit, and charge / discharge test equipment - Google Patents

Description

  The present invention relates to a charge / discharge test system, a calibrator unit, and a charge / discharge test apparatus for automatically calibrating an apparatus for performing a charge / discharge test of a secondary battery.

  2. Description of the Related Art In recent years, secondary batteries have attracted attention in various fields such as electric vehicles, nighttime response of solar cell systems, and emergency storage batteries during disasters. When manufacturing secondary batteries, it is necessary to check whether the required performance is satisfied by performing a charge test and discharge test under preset conditions, and a charge / discharge test device for inspecting the performance of the secondary battery in the production line Is used (see, for example, Patent Document 1).

  In addition, various techniques have been studied for a calibration method for a production line inspection apparatus (see, for example, Patent Documents 2 and 3).

JP 2010-223896 A Japanese Patent Laid-Open No. 06-011494 JP 2004-125715 A

  However, it is necessary to periodically inspect whether the electrical characteristics such as voltage and current at the time of testing the secondary battery by the charge / discharge test apparatus match the test conditions. For this purpose, for example, a maintenance person must regularly perform a work to check the voltage and current between the output terminals of the charge / discharge test system using a measuring instrument, which not only takes great effort and cost, During calibration, there was a problem that the charge / discharge test apparatus could not be used and the production efficiency of the secondary battery was lowered.

  In view of the above problems, an object of the present invention is to provide a charge / discharge test system, a calibrator unit, and a charge / discharge test apparatus that automatically calibrate a charge / discharge test apparatus used when manufacturing a secondary battery.

  A charge / discharge test system according to the present invention is a charge / discharge test system having a charge / discharge test apparatus used for testing a secondary battery and a calibrator unit for calibrating the charge / discharge test apparatus. Is composed of a connection terminal having the same arrangement as the secondary battery and a housing of the same shape, and instead of the secondary battery, a measurement unit that is connected to the connection terminal and measures electrical characteristics; and the connection terminal Among them, a power supply unit for supplying power to the unit to be inputted from the charge / discharge test apparatus through a predetermined part of the connection terminals, and the connection terminal for inputting power from the charge / discharge test apparatus A switching unit that is connected to a power supply unit and that switches the connection terminal that measures electrical characteristics with the charge / discharge test apparatus to connect to the measurement unit, and the charge / discharge test apparatus includes the calibration Uni A charge / discharge test of the secondary battery, a calibration test by the calibrator unit, and a power supply for supplying power via a detection unit for detecting the connection of the secondary battery and the connection terminal connected to the secondary battery or the calibrator unit. A discharge unit, and the charge / discharge unit supplies power to the calibrator unit via a predetermined part of the connection terminals when the detection unit detects connection of the calibrator unit. It is characterized by supplying.

  A calibrator unit according to the present invention is a calibrator unit for calibrating a charge / discharge test apparatus used for a test of a secondary battery, and includes a connection terminal having the same arrangement as the secondary battery and a casing having the same shape. In place of the secondary battery, the charge / discharge test apparatus is connected to a measuring unit that is connected to the connection terminal and measures electrical characteristics, and a predetermined part of the connection terminals among the connection terminals. A power supply unit that supplies power input from the power supply unit to the unit, and the connection terminal that inputs power from the charge / discharge test apparatus is connected to the power supply unit, and electrical characteristics between the power supply unit and the charge / discharge test apparatus are measured. And a switching unit that switches the connection terminal to connect to the measurement unit.

  In particular, the switching unit has a predetermined default connection among at least two connection terminals for inputting power from the charge / discharge test apparatus, except when connected to the charge / discharge test apparatus. The terminal is connected to the power supply unit, and the power supply unit detects the power input from the charge / discharge test apparatus via the default connection terminal, and the measurement unit and the wireless communication slave unit It is characterized by starting.

  Moreover, the said switching part is the said charging / discharging test via the 1st connection terminal or 2nd connection terminal corresponding to at least 2 cell among the said connection terminals connected for every several cell which comprises the said secondary battery. When power is input from the apparatus, when power is being input from the charge / discharge test apparatus via the first connection terminal, the second connection terminal is connected to the measurement unit, and the second connection terminal is used. When the power is input from the charge / discharge test apparatus, the first connection terminal is connected to the measurement unit.

  Further, the switching unit switches between the first connection terminal and the first connection terminal in a predetermined overlapping period when switching from the first connection terminal receiving power from the charge / discharge test apparatus to the second connection terminal. After the power is input from the charge / discharge test apparatus to both of the two connection terminals, the first connection terminal is connected to the measurement unit.

  The information processing unit further includes an information storage unit that stores unit information of the device itself and is readable from the outside in a state where no power is supplied to the power supply unit.

  The charge / discharge test apparatus according to the present invention is a charge / discharge test apparatus that transmits / receives the measurement information and the control information to / from the calibrator unit, a detection unit that detects connection of the calibrator unit, and the secondary A charge / discharge unit for performing a charge / discharge test of the secondary battery and a calibration test by the calibrator unit and supplying power via the connection terminal connected to the battery or the calibrator unit; When the detection unit detects connection of the calibrator unit, power is supplied to the calibrator unit via a predetermined part of the connection terminals.

  The charge / discharge test system, calibrator unit, and charge / discharge test apparatus according to the present invention can automatically calibrate a device for performing a charge / discharge test at the time of manufacturing a secondary battery, and are periodically calibrated by a maintenance person. The production efficiency of the secondary battery can be greatly improved.

It is a figure which shows an example of the manufacturing line which performs the test of a secondary battery. It is a figure which shows the example of a connection of the charging / discharging test apparatus 101, the calibration machine unit 102, and the secondary battery 150. FIG. It is a figure which shows the structural example of the charging / discharging test apparatus 101 which concerns on 1st Embodiment, the calibration machine unit 102, and the test management apparatus 103. FIG. It is a figure which shows the other structural example of the charging / discharging test apparatus 101, the calibration machine unit 102, and the test management apparatus 103. FIG. 3 is a diagram illustrating a circuit example of a charge / discharge circuit 111. FIG. It is a figure which shows the operation example at the time of charge. It is a figure which shows the operation example at the time of discharge. 3 is a flowchart showing a processing example of a charge / discharge test apparatus 101. 5 is a flowchart showing a processing example of a proof machine unit 102. 6 is a diagram illustrating an example of a switching pattern of a switching circuit 141. FIG. It is a figure which shows the other structural example of the charging / discharging test apparatus 101, the calibration machine unit 102, and the test management apparatus 103. FIG. It is a figure which shows the example of a switching pattern of switching circuit 141 '. 5 is a flowchart illustrating an example of processing at the time of calibration of the test management apparatus 103. 6 is a diagram illustrating an example of a calibration management table 251. FIG.

  Hereinafter, embodiments of a charge / discharge test system, a calibrator unit, and a charge / discharge test apparatus according to the present invention will be described in detail with reference to the drawings.

  A plurality of charge / discharge test apparatuses 101 are arranged on a production line for testing a produced secondary battery, and for example, a line is configured for each test content. In the example of FIG. 1, a test line A that performs a mode A test, a test line B that performs a mode B test, and a test line C that performs a mode C test are arranged. Here, the mode A, the mode B, and the mode C are different from each other in test contents such as a charging current magnitude and a charging pattern, a discharging current magnitude and a discharge pattern, for example. As an example, a test in which mode A is trickle charge, mode B is quick charge, and mode C is continuous discharge is performed.

  1, a plurality of test devices such as a charge / discharge test device 101a1, a charge / discharge test device 101a2, a charge / discharge test device 101a3,... Are arranged on the test line A. For example, the charge / discharge test device 101a1 is a secondary battery 150_1. A mode A test is performed. Further, in the test line B, a plurality of test devices such as a charge / discharge test device 101b1, a charge / discharge test device 101b2, a charge / discharge test device 101b3,... Are arranged, for example, the charge / discharge test device 101b2 is connected to the secondary battery 150_2. To perform a mode B test. Similarly, in the test line C, a plurality of test devices such as a charge / discharge test device 101c1, a charge / discharge test device 101c2, a charge / discharge test device 101c3,... Are arranged, for example, the charge / discharge test device 101c1 is connected to the secondary battery 150_3. On the other hand, the charge / discharge test apparatus 101c2 performs the mode C test on the secondary battery 150_4.

  Here, how to attach a code in this embodiment is defined. In FIG. 1, the charge / discharge test apparatus 101a1, the charge / discharge test apparatus 101a2, the charge / discharge test apparatus 101a3, the charge / discharge test apparatus 101b1, the charge / discharge test apparatus 101b2, the charge / discharge test apparatus 101b3, the charge / discharge test apparatus 101c1, A plurality of test apparatuses such as the test apparatus 101c2 and the charge / discharge test apparatus 101c3 are test apparatuses having the same configuration that can select which mode the test is performed on. In the following description, when the contents common to these test apparatuses are described, the charge / discharge test apparatus 101 is simply indicated except for alphabets a *, b *, and c * (* is a number). Further, in the case where the test apparatus is common to the test apparatus of the group performing the mode A test, the charge / discharge test apparatus 101a is described. The same applies to mode B and mode C. Only when a specific charge / discharge test apparatus 101 is pointed out, all symbols are added and expressed, for example, “secondary battery 150_3 is connected to charge / discharge test apparatus 101c1 on test line C”. . The same concept is used for secondary batteries and calibrator units. For example, when all secondary batteries are common, the secondary battery 150 is indicated, and when referring to a specific secondary battery 150, “_number” is used. In addition, it is expressed as “secondary battery 150_3”. In the case of a calibrator unit as well, when it is common to all calibrator units, it is expressed as a calibrator unit 102, and when referring to a specific calibrator unit 102, “_number” is added and “calibrator unit 102_2” is designated. Indicate.

  In general, in the production line for testing the secondary battery 150 as shown in FIG. 1, in order to maintain the quality of the secondary battery 150, it is periodically checked whether the performance of the charge / discharge test apparatus 101 itself, which is a test apparatus, is out of order. You must inspect and calibrate if you are crazy. For example, it is measured whether or not the charging current at the time of performing the charging test of the secondary battery 150 is within a predetermined range determined as a test condition, and when it is out of the predetermined range, the center value of the predetermined range is set. It is necessary to redo. Actually, if the secondary battery 150 that has been tested in the past needs to be retested when it is out of the predetermined range, the adjustment is made early when the secondary battery 150 is out of the predetermined range. It is managed so as not to deviate from.

  Therefore, in this embodiment, instead of the secondary battery 150 to be tested, a calibrator unit 102 having a casing of the same size as the secondary battery 150 is periodically passed through each test line. Here, FIG. 2A is a diagram showing a state in which the secondary battery 150 is connected to the charge / discharge test apparatus 101. Each terminal of the test terminal group 117 of the charge / discharge test apparatus 101 is arranged to correspond to each terminal of the terminal group 151 of the secondary battery 150 on a one-to-one basis. During the test, the terminal group 117 and the terminal group 151 come into contact with each other, and the test of the secondary battery 150 is started. On the other hand, FIG. 2B is a diagram showing a state in which the calibration machine unit 102 is connected to the charge / discharge test apparatus 101. The calibrator unit 102 includes a casing having the same size as the secondary battery 150 and a terminal group 118 having the same arrangement as the terminal group 151 of the secondary battery 150. At the time of calibration, the terminal group 117 and the terminal group 118 come into contact with each other, and calibration of the charge / discharge test apparatus 101 is started.

  In the example of FIG. 1, a method for moving the secondary battery 150, the calibration unit 102, etc. to the position of the charge / discharge test apparatus 101 in the next test mode is not illustrated. Alternatively, it may be automatically distributed by a conveyor or the like. Further, the calibrator unit 102 may be moved only within a group of the same test mode, or may be moved to a group of different test modes. Furthermore, when the interval for flowing the calibrator units 102 is long or when the number of calibrator units 102 is large, a rack 160 for temporarily waiting the calibrator units 102 may be provided. In this case, the calibration machine unit 102 is moved to the standby rack 160 by an operator or a conveyor, and flows to the charge / discharge test apparatus 101 in the target test mode at the time of calibration. The calibration schedule is determined in advance as a manufacturing process or manufacturing inspection item. When an operator performs the calibration schedule, the calibration is performed according to the calibration schedule. When the calibration schedule is automatically performed, a plurality of charge / discharge test apparatuses 101 are managed. Calibration is performed according to the calibration schedule on the test management apparatus 103 side. Further, a method for acquiring the position of the own unit in the factory such as on the charge / discharge test apparatus 101, the standby rack 160 and the line to which the calibrator unit 102 is connected will be described in detail later.

  FIG. 3 shows an example of the charge / discharge test system 100, and is a diagram showing a configuration example when a charge / discharge test is performed by connecting the calibrator unit 102 to the charge / discharge test apparatus 101. Here, the charge / discharge test apparatus 101 is connected to the test management apparatus 103 side via a LAN. Note that the test management device 103 is arranged for each test group, and may manage and control only the charge / discharge test devices 101 in the same test group, or may manage the charge / discharge test devices 101 of all test groups. -You may make it control. In FIG. 3, the charge / discharge test apparatus 101 and the test management apparatus 103 are separated for easy understanding. However, the charge / discharge test apparatus 101 may include the function of the test management apparatus 103 as the charge / discharge test apparatus 101. The charge / discharge test apparatus 101 and the test management apparatus 103 may be combined to form a charge / discharge test system. The charge / discharge test apparatus in each claim of the present application includes the functions of both the charge / discharge test apparatus 101 and the test management apparatus 103.

  In FIG. 3, the charge / discharge test apparatus 101 includes, for example, a charge / discharge circuit 111, a control unit 112, and a power supply unit 113. In addition, it has an RFID (Radio Frequency IDentification) reader 192 for detecting that the secondary battery 150 or the calibration machine unit 102 has flowed to the position of the charge / discharge test apparatus 101 on the production line. In this embodiment, the RFID tag 191 is attached to the secondary battery 150 or the calibration machine unit 102, and information stored in the RFID tag 191 is read by the RFID reader 192 of the charge / discharge test apparatus 101. However, the secondary battery 150 and the calibrator unit 102 may be recognized by other methods. For example, the identification information may be printed on a code such as a barcode and attached to the secondary battery 150 or the calibration machine unit 102 and read by a barcode reader provided in the charge / discharge test apparatus 101.

  The charging / discharging circuit 111 has a terminal group 117 for connecting the secondary battery 150 and the calibrator unit 102. In the example of FIG. 3, the terminal group 117 is composed of 10 sets of connection terminals from ch01 to ch10. The The charging / discharging circuit 111 is controlled by the control unit 112 such as the magnitude and charging time of the charging current, the magnitude and discharging time of the discharging current, and measures the impedance characteristics, voltage, temperature, and the like of the secondary battery 150. To 112. Note that the secondary battery 150 is configured such that a plurality of cells are stacked, and the characteristics of each cell can be tested by connecting the terminals of the charge / discharge test apparatus 101 for each cell. Further, when the calibrator unit 102 is connected to the charge / discharge test apparatus 101, the charge / discharge test apparatus 101 uses the calibrator from a predetermined connection terminal (for example, ch10) among ten sets of connection terminals from ch01 to ch10. A power supply for operating the unit 102 is supplied. For example, the control unit 112 controls the charge / discharge circuit 111 so as to supply a constant voltage (such as +5 V) from ch10.

  The control unit 112 has a LAN interface circuit, is connected to the test management apparatus 103 side, and controls the charge / discharge circuit 111 in accordance with a preset test mode or test contents instructed from the test management apparatus 103 side.

  The power supply unit 113 is connected to a commercial power supply (such as AC 100 V) and supplies power necessary for operation to the charge / discharge circuit 111 and the control unit 112.

  In FIG. 3, the test management apparatus 103 includes, for example, a HUB 131, a wireless master device 132, and a control personal computer 133.

  The HUB 131 is a network device for connecting a plurality of charge / discharge test apparatuses 101, a wireless master device 132, and a control personal computer via a LAN.

  The wireless master device 132 wirelessly connects to a plurality of calibrator units 102, transmits / receives control information to / from the calibrator units 102, and receives measurement information of the calibrator units 102.

  The control personal computer 133 controls the charge / discharge test apparatus 101 in the same test group or the charge / discharge test apparatuses 101 in all test groups, sets the test contents before the test, monitors the test status when the test is in progress, Acquire and manage results.

  On the other hand, in FIG. 3, the calibration machine unit 102 includes, for example, a multimeter 121, a wireless slave device 122, and a voltage conversion unit 123. Further, the calibration machine unit 102 has an RFID tag 191 in which identification information of the unit itself is stored, and information on the RFID tag 191 is read by the RFID reader 192 of the charge / discharge test apparatus 101. Further, the calibrator unit 102 includes a switching circuit 141 in a part of channel ch between the terminal group 118 on the calibrator unit 102 side connected to the terminal group 117 on the charge / discharge test apparatus 101 side and the multimeter 121. Have. The switching circuit 141 switches the connection terminal of the channel ch to which power is supplied from the charge / discharge test apparatus 101 to the calibrator unit 102 to the voltage conversion unit 123 side. For example, in the example of FIG. 3, two channels of ch09 and ch10 are connected to the switching circuit 141. The switching circuit 141 is controlled by an output signal of the wireless slave device 122 including the function of the control unit.

  The multimeter 121 controls a measurement circuit 125 that measures current characteristics, voltage characteristics, impedance, and the like of each channel of the terminal group 118, and measurement control that controls measurement contents of the measurement circuit 125 and reads measurement data of the measurement circuit 125. Part 126. The measurement control unit 126 is connected to the wireless slave unit 122 via a LAN (which may be a dedicated wiring), and measurement data is wirelessly transmitted from the wireless slave unit 122 to the test management apparatus 103 side.

  The wireless slave device 122 establishes a wireless line with the wireless master device 132 of the test management apparatus 103 and transmits information on the calibrator unit 102 side (measurement data, unit information, alarms, etc.) to the test management apparatus 103 side. To do.

  The voltage converter 123 converts the voltage supplied from the charge / discharge test apparatus 101 into a voltage necessary for the operation of the multimeter 121 and the wireless slave device 122. In the example of FIG. 3, the DC5V voltage output from the charge / discharge test apparatus 101 is converted to AC100V that is the same as the commercial power supply and supplied to the multimeter 121, and is converted to DC24V and supplied to the wireless slave unit 122. Further, in the present embodiment, the wireless slave unit 122 includes the function of the control unit of the entire calibrator unit 102 and performs, for example, voltage monitoring and multimeter 121 control. Similar to the control unit 112 of the apparatus 101, a unit control unit 128 may be provided as shown in FIG. In this case, the overall operation of the calibrator unit 102 is controlled according to a program stored in advance in the unit control unit 128, for example, control of the multimeter 121, control of the switching circuit 141, or alarm notification to the test management apparatus 103 side in the event of an abnormality. Perform actions such as

  In this way, the calibrator unit 102 does not require a power cord or the like, and can be handled stand-alone like the product secondary battery 150, and can be mixed and flowed between the secondary batteries 150 on the test line. it can. 3 and 4 uses a commercial product used as a multimeter 121 with a commercial power source that is easy to manage calibration, and requires AC 100V and has a LAN interface. It may be possible to develop and connect directly to DC5V supplied from the charge / discharge test apparatus 101. Similarly, the wireless slave device 122 is not a commercially available product corresponding to the wireless master device 132, and a dedicated wireless device that can be directly connected to the DC 5 V supplied from the charge / discharge test apparatus 101 or the multimeter 121 may be mounted. In such a case, it is not necessary to use the voltage converter 123 or the LAN. In any case, the calibrator unit 102 according to the present embodiment has a casing and a terminal group 118 equivalent to those of the secondary battery 150, a circuit that wirelessly communicates with the test management device 103 side, and a charge / discharge test. It is only necessary to realize a stand-alone operation using DC 5V supplied from the apparatus 101, and the present invention is not limited to the configuration examples of FIGS.

  Here, a circuit example in the case where the secondary battery 150 or the calibration machine unit 102 is connected to the charge / discharge circuit 111 of the charge / discharge test apparatus 101 will be described with reference to FIG. In FIG. 5, the charge / discharge circuit 111 has the same charge / discharge circuit for each channel. For example, the ch charge / discharge circuit 161 for ch01, the ch charge / discharge circuit 162 for ch02, and the ch charge / discharge circuit 163 for ch10. Are arranged respectively. Since all circuit configurations are the same, the channel charge / discharge circuit 161 will be described as a representative. The ch charge / discharge circuit 161 includes a regenerative inverter 164 connected to the power supply unit 113, a discharge test boost circuit 165, a charge test chopper circuit 166, and a bias power supply 167.

  The regenerative inverter 164 supplies power to the chopper circuit 166 during charging, and recovers power from the boost circuit 165 during discharging.

  The boost circuit 165 includes an inductor, a diode, a capacitor, and a switch including a switching element, and gives a load during discharging. For example, when the test is performed with a discharge current of 100 A, the control unit 112 controls the current flowing through the boost circuit 165 to be 100 A. The bias power supply 167 inserted in series in the circuit is a power supply that gives an offset of about several volts so that the tested side (secondary battery side) can discharge to 0 volts.

  The chopper circuit 166 includes an inductor, a diode, a capacitor, and a switch using a switching element, and supplies power during charging.

  The regenerative inverter 164, the boost circuit 165, and the chopper circuit 166 are controlled by the control unit 112. Further, the ch charge / discharge circuit 161 performs a charge / discharge test of a part of the cells of the secondary battery 150 described in FIG. Here, a part of the cells of the secondary battery 150 is referred to as a secondary battery 150-n.

  FIG. 6A is a diagram illustrating a state when the secondary battery 150-n is connected to the chopper circuit 166. In FIG. 6A, the chopper circuit 166 outputs a charging current from the + terminal 1 and is refluxed to the − terminal 2 through the secondary battery 150-n. Thus, the charge test of the secondary battery 150-n is performed.

  On the other hand, FIG. 6B is a diagram showing a state when the calibrator unit 102 is connected to the chopper circuits 166 from ch01 to ch08. In FIG. 6B, the chopper circuit 166 outputs the charging current from the + terminal 1 and returns to the −terminal 2 through the calibrator unit 102. At this time, inside the measuring circuit 125 on the calibrator unit 102 side, the charging current input from the + terminal 1 is short-circuited by the switch and is returned to the − terminal 2. Then, the charging current is measured by the ammeter 168, and the measured value is output to the measurement control unit 126. In this way, the calibration test is performed, and the measured value is adjusted so as to become the set value of the charging current of the ch charge / discharge circuit 161.

  FIG. 6C is a diagram showing a state when the calibrator unit 102 is connected to the chopper circuits 166 of ch09 and ch10. In FIG. 6C, the chopper circuit 166 outputs the charging current from the + terminal 1 and returns to the −terminal 2 through the calibrator unit 102, as in FIG. 6B. On the other hand, on the calibrator unit 102 side, the switching circuit 141 is disposed between the chopper circuit 166 and the measurement circuit 125. The switching circuit 141 is configured by a semiconductor switch such as a relay or FET, and connects the chopper circuit 166 to the measurement circuit 125 or the voltage conversion unit 123. The switching circuit 141 is controlled by an output signal of the wireless slave unit 122 including the function of the control unit. Further, the semiconductor switches such as relays and FETs constituting the switching circuit 141 are surely disconnected between the power supply and the calibration test, so that the calibration data is not affected.

  FIG. 7A is a diagram showing a state when the secondary battery 150-n is connected to the boost circuit 165 via the bias power source 167. In FIG. 7A, the discharge current from the secondary battery 150-n is input from the + terminal 1 and flows into the boost circuit 165 serving as a load via the bias power source 167. Thus, the charge test of the secondary battery 150-n is performed.

  On the other hand, FIG. 7B is a diagram showing a state when the calibrator unit 102 is connected to the boost circuit 165. In FIG. 7B, when a discharge test is performed, the bias power supply 167 is short-circuited between the + terminal 1 and the − terminal 2 by a switch via the ammeter 169 in the measuring circuit 125 of the calibrator unit 102. To recirculate the discharge current. Then, the discharge current is measured by the ammeter 169 and the measurement value is output to the measurement control unit 126. In this way, the calibration test is performed, and the load by the boost circuit 165 is adjusted so that the measured value becomes the set value of the discharge current of the ch charge / discharge circuit 161.

  Here, when performing the discharge test, the calibrator unit 102 according to the present embodiment shorts between the + terminal 1 and the − terminal 2 with a switch via the ammeter 169 as shown in FIG. 7. Thus, loss can be prevented from occurring. Conventionally, since a dummy battery is connected during calibration, there is a problem that loss occurs. Alternatively, even when calibration is performed by short-circuiting, the maintenance person must manually short-circuit and measure the current value, which is troublesome. On the other hand, in the calibrator unit 102 according to the present embodiment, the switch in the measurement circuit 125 of the calibrator unit 102 is automatically closed by a series of calibration programs, so that it is possible to save time and loss. it can.

  Next, processing during calibration of the charge / discharge test apparatus 101 and the calibration machine unit 102 will be described with reference to the flowchart of FIG.

  (Step S101) The control unit 112 of the charge / discharge test apparatus 101 detects whether or not the secondary battery 150 (or the calibrator unit 102) is connected, and waits until it is connected.

  Note that the detection of the connection is performed, for example, because the impedance between the terminals changes when the terminal group 117 of the charge / discharge circuit 111 is connected to the secondary battery 150 (or the calibrator unit 102). By detecting it, the presence or absence of connection can be detected. Alternatively, as described with reference to FIG. 2, the mechanical switch is turned on / off by the operation in which the terminal group 117 of the charge / discharge test apparatus 101 is pressed against the terminal group 151 of the secondary battery 150 (or the terminal group 118 of the calibrator unit 102). You may detect as follows.

  (Step S151) The control unit 112 of the charge / discharge test apparatus 101 detects whether or not the connected apparatus is the calibrator unit 102. If it is the calibration machine unit 102, the process proceeds to step S152. If it is the secondary battery 150, the process proceeds to step S102.

  Note that whether or not the connected apparatus is the calibration machine unit 102 can be detected by the RFID reader 192 shown in FIG. In this case, the control unit 112 can detect whether or not the calibrator unit 102 is connected by reading information of the RFID tag 191 attached to the calibrator unit 102. Further, if the same RFID tag 191 is attached to the secondary battery 150, the secondary battery 150 can be detected. Alternatively, a scanner that reads a print code such as a two-dimensional barcode instead of the RFID reader 192 is mounted on the charge / discharge test apparatus 101, and the secondary battery 150 and the calibrator unit 102 are determined based on the two-dimensional barcode information. A connection may be detected.

  (Step S152) When the connected device is the calibrator unit 102, the control unit 112 of the charge / discharge test apparatus 101 prepares for a calibration test. For example, the control unit 112 starts supplying power to a predetermined designated channel. For example, in the case of FIG. 3, the supply of a constant voltage of +5 V to ch10 (ch09 may be used) is started. Then, the control unit 112 notifies the control personal computer 133 of the test management apparatus 103 that the calibration machine unit 102 is connected via the LAN.

  (Step S153) When the calibration machine unit 102 is connected, the control personal computer 133 of the test management apparatus 103 instructs the control unit 112 of the charge / discharge test apparatus 101 to start the calibration test. Then, the control unit 112 of the charge / discharge test apparatus 101 performs a preset calibration test on each channel other than the channel supplying power to the calibrator unit 102. For example, when a constant voltage of +5 V is supplied at ch10, a calibration test is performed on the remaining ch01 to ch09. Here, in the calibration test, for example, the charging circuit and charging current of the secondary battery 150 are measured by the measuring circuit 125 of the multimeter 121.

  Here, the control personal computer 133 of the test management apparatus 103 designates a charging voltage, a charging current, or the like to the control unit 112 of the charge / discharge test apparatus 101 and supplies it to the calibrator unit 102 from the charge / discharge circuit 111. The calibrator unit 102 measures the charging voltage, the charging current, and the like by the measurement circuit 125, and the measurement result is transferred from the wireless slave unit 122 of the calibrator unit 102 to the control personal computer 133 via the wireless master unit 132 of the test management device 103. To be notified. The control personal computer 133 checks the measurement result and confirms whether or not the test voltage or test current value specified for the charge / discharge test apparatus 101 is within a specified range. When the measurement result does not fall within the specified range, the charge / discharge circuit 111 of the charge / discharge test apparatus 101 is adjusted so as to be within the specified range.

  (Step S154) The control unit 112 of the charge / discharge test apparatus 101 determines whether or not the calibration test is completed, and continues the operation of step S153 until the calibration test is completed. When the calibration test is completed, the process proceeds to the next step S155.

  (Step S155) The control unit 112 of the charge / discharge test apparatus 101 determines whether or not the calibration test for all the channels from ch01 to ch10 has been completed. If not, the process proceeds to step S156. Advances to step S157.

  (Step S156) The control personal computer 133 of the test management apparatus 103 switches the channel supplying power to the calibrator unit 102 to another channel for which the configuration test has been completed, with respect to the control unit 112 of the charge / discharge test apparatus 101. To instruct. For example, in the case of FIG. 3, the charge / discharge test apparatus 101 supplies power to the calibrator unit 102 from ch10, and therefore switches power supply to ch09 where the calibration test is completed. At this time, the power supply from ch09 is started before the power supply to ch10 is cut off, and the power supply to ch10 is stopped after the power supply from ch09 is completed. This is to prevent the power supply to the calibration machine unit 102 from being interrupted by temporally overlapping the power supply from ch09 and ch10. And it returns to step S153 and the calibration test to ch10 which has not finished the calibration test is performed similarly.

  (Step S157) The control unit 112 of the charge / discharge test apparatus 101 stops the power supply to the calibrator unit 102. For example, in the above case, the power supply to ch09 is stopped, and the charge / discharge circuit 111 is returned to the charge / discharge test of the secondary battery 150. Thereby, when the secondary battery 150 is connected to the charge / discharge test apparatus 101 next to the calibrator unit 102, it is possible to prevent the secondary battery 150 from being damaged by the power supply to the calibrator unit 102. Then, a series of calibration tests is completed.

  (Step S102) When connection of the secondary battery 150 is detected in step S151, the control unit 112 of the charge / discharge test apparatus 101 performs a charge / discharge test in a preset test mode. For example, the voltage change and the temperature change when the first 30 minutes are charged with the charging current 2A and the next 30 minutes are charged with the charging current 1A are tested.

  (Step S103) The control unit 112 of the charge / discharge test apparatus 101 determines whether or not the test is completed, and continues the operation of step S102 until the test is completed. And when a test is complete | finished, it progresses to the next step.

  (Step S104) The control unit 112 of the charge / discharge test apparatus 101 notifies the test result of the control personal computer 133 of the test management apparatus 103 via the LAN.

In the description of FIG. 8, the result is notified to the control personal computer 133 after the end of the test, but the value under test may be sequentially transmitted to the control personal computer 133. In addition, when the charge / discharge test apparatus 101 transmits the test result to the control personal computer 133, information such as the serial number of the secondary battery 150 that has been tested and the identification number of the charge / discharge test apparatus 101 is included along with the test result. You may make it notify to the control personal computer 133. FIG. Furthermore, information such as the test date and time may be notified, or date and time information may be added on the control personal computer 133 side. In any case, the control personal computer 133 side manages information such as test contents, test results, test date and time, corresponding to the serial number of the secondary battery. An example is shown below.
・ Secondary battery: SN = 123456
・ Test date: 20110922, 13:10
・ Test content: Mode A
Test result (voltage): Voltage before / after charging = 11V / 18V
Test result (temperature): Temperature before / after charging = 15 ° C./40° C.
Here, as a method for the charge / discharge test apparatus 101 to obtain the serial number of the secondary battery 150, for example, a bar code or an RFID tag is attached around the terminal group 151 of the secondary battery 150, and the charge / discharge test apparatus 101 is used. A barcode reader, RFID reader, or the like may be mounted around the terminal group 117 and controlled by the control unit 112. Further, this mechanism may be used for the connection determination process in step S101. A similar mechanism may be applied to the calibrator unit 102 to acquire the identification number of the calibrator unit 102 connected to the charge / discharge test apparatus 101.

  In this way, the charge / discharge test apparatus 101 performs the charge / discharge test of the secondary battery 150 and the calibration test by the calibrator unit 102.

  Next, an operation example of the calibration machine unit 102 will be described with reference to FIG. Note that the calibrator unit 102 in this embodiment also serves as a control unit in which the wireless slave unit 122 controls the entire calibrator unit 102. However, as described in FIG. 4, the calibrator unit 102 controls the entire calibrator unit 102. A unit control unit 128 may be provided. The unit controller 128 may control the multimeter 121 and the wireless slave device 122.

  (Step S201) The calibration machine unit 102 detects whether or not the charge / discharge test apparatus 101 is connected, and waits until it is connected. Actually, it does not operate until power is supplied from the charge / discharge test apparatus 101, and therefore, it waits until the calibrator unit 102 is activated by supplying + 10V of ch10. Here, the activation itself of the calibrator unit 102 is equivalent to the detection of the connection of the charge / discharge test apparatus 101. However, the calibrator unit 102 has a power supply voltage of ch10 of + 5V after activation for confirmation. You may make it measure whether there exists. Alternatively, similarly to the charge / discharge test apparatus 101 described above, when the terminal group 118 of the multimeter 121 is connected to the terminal group 117 of the charge / discharge test apparatus 101, the presence / absence of connection is detected by a change in impedance between the terminals. Alternatively, the charging current output from the charge / discharge test apparatus 101 may be detected. Alternatively, as described with reference to FIG. 2, an operation in which the terminal group 118 of the calibrator unit 102 is pressed against the terminal group 117 of the charge / discharge test apparatus 101 may be detected by a mechanical switch or the like.

  (Step S <b> 202) The calibrator unit 102 performs calibration measurement for monitoring changes in charge / discharge current and voltage of the charge / discharge test performed by the charge / discharge test apparatus 101, and outputs the measurement to the wireless slave unit 122.

  (Step S <b> 203) The calibration unit 102 transmits the measurement result from the wireless slave device 122 to the wireless master device 132 of the test management apparatus 103. The calibration unit 102 may transmit information such as the identification number of the calibration unit 102 itself to the test management apparatus 103 together with the measurement result when transmitting the measurement result to the test management apparatus 103. . Alternatively, the identification number of the charge / discharge test apparatus 101 to be measured may be transmitted, or the correspondence between the calibrator unit 102 and the charge / discharge test apparatus 101 may be managed by the control personal computer 133 on the test management apparatus 103 side. . Further, information such as the test date and time may be transmitted, or date and time information may be added on the control personal computer 133 side of the test management apparatus 103. In any case, on the control personal computer 133 side, information such as measurement content, measurement value, and measurement date / time is associated with the identification number of the charge / discharge test apparatus 101 and the identification number of the calibration unit 102. Is managed.

  (Step S204) The calibrator unit 102 determines whether or not the calibration test is completed, and continues the operation of step S202 until the calibration test is completed. And when measurement is complete | finished, it progresses to the next step. The end of the calibration test may be determined by detecting that the connection of the terminal group 118 to the terminal group 117 of the charge / discharge test apparatus 101 has been released, or by measuring a test pattern in advance. The end may be determined. Here, the secondary battery 150 and the calibrator unit 102 may be a system that automatically moves on the line and is automatically connected to the charge / discharge test apparatus 101, The calibrator unit 102 may be connected to the charge / discharge test apparatus 101 on the line. For example, when the secondary battery 150 or the calibration machine unit 102 automatically moves on the line and connects to the charge / discharge test apparatus 101 or performs standby control with the standby rack 160, the test management apparatus 103 is used. It is executed based on a process stored in advance.

  (Step S251) The calibrator unit 102 switches the power supply ch to another ch for which the calibration test has been completed. Specifically, the wireless slave device 122 that has received the completion of the calibration test via the wireless master device 132 of the test management apparatus 103 is a relay or FET switch disposed in each channel of the switching circuit 141. Change the channel. For example, when the power supply from ch10 is received and the calibration test from ch01 to ch09 is completed, the switching circuit 141 is switched so that the power supply is supplied from ch09 to the voltage converter 123. Similarly, the wireless slave device 122 switches ch10 that has been supplied with power to the measurement circuit 125 side. At this time, similarly to the charge / discharge circuit 111 described above, the wireless slave unit 122 interrupts the power supply to the calibrator unit 102 by temporally overlapping the power supply from ch09 and ch10. Do not. Here, the wireless slave unit 122 measures the voltage and current supplied from the ch09 with the measurement circuit 125 before turning off the power supply from the ch10, and confirms that the power supply for operating the calibration unit 102 is obtained. To do. The wireless slave unit 122 switches ch09 from the measurement circuit 125 to the voltage conversion unit 123 side when power is supplied to operate the calibrator unit 102, and then ch10 from the voltage conversion unit 123 to the measurement circuit 125. Switch to the side.

  (Step S252) The calibrator unit 102 determines whether or not the calibration test for all the channels from ch01 to ch10 is completed. If not completed, the process returns to step S202. If completed, the process proceeds to step S205. .

  (Step S205) The calibrator unit 102 notifies the test management apparatus 103 that the calibration test has been completed. Since the test end notification is transmitted from the charge / discharge test apparatus 101 to the test management apparatus 103 side, it is not necessary to notify the end of the calibration test.

  (Step S253) The calibrator unit 102 returns the ch that receives power supply from the charge / discharge test apparatus 101 to the default ch. In the above example, the first ch that is supplied with power is ch10, so the calibrator unit 102 switches ch10 of the switching circuit 141 to the voltage converter 123 side and switches the other ch01 to ch09 to the measurement circuit 125 side. deep. The wireless slave device 122 immediately executes the process of step S253 after notifying the test management apparatus 103 of the end of the calibration test in step S252. This is because the test management apparatus 103 stops the power supplied to the calibrator unit 102 from the charge / discharge circuit 111 of the charge / discharge test apparatus 101 when receiving the notification of the end of the calibration test from the calibrator unit 102. It is necessary to switch before. Note that the test management apparatus 103 may wait for a short time after receiving the notification of the end of the calibration test from the calibration machine unit 102 until the power supplied to the calibration machine unit 102 is stopped.

  In this way, the charge / discharge current and voltage are given to the calibrator unit 102 in the same manner as the charge / discharge test apparatus 101 tests the secondary battery 150, and the test pattern such as the charge current and voltage under test is preliminarily set. The test management apparatus 103 can check whether it conforms to the set test regulations and perform calibration.

  In particular, in this embodiment, the ch that performs the calibration test of the charge / discharge test apparatus 101 switches the switching circuit 141 from the voltage conversion unit 123 side to the multimeter 121 side, executes the calibration test, and supplies power to the calibrator unit 102. The switching channel 141 switches the switching circuit 141 from the multimeter 121 side to the voltage conversion unit 123 side to operate the calibrator unit 102.

  Here, the above switching example will be described in detail with reference to FIG. FIG. 10 shows a pattern of the calibration time Tr and the power supply time Tc1 performed by the charge / discharge circuit 111 for the channels ch01 to ch08 where the switching circuit 141 is not provided and the channels 09 and ch10 where the switching circuit 141 is provided. It is the figure drawn on the horizontal axis. Here, in FIG. 10, there is a relationship of calibration time Tr <power supply time Tc1.

  In the example of FIG. 10, the charge / discharge test apparatus 101 first starts a calibration test for the channels from ch01 to ch09 at timing t0, and ends the calibration test at timing t10 after the time Tr necessary for calibration has elapsed. . On the other hand, ch10 switched to the voltage conversion unit 123 side by the switching circuit 141 is already switched to the voltage conversion unit 123 side at a timing slightly earlier than the timing t0, and power is supplied from the charge / discharge circuit 111 side to the voltage conversion unit 123. It is in a broken state. Then, the power supply time Tc1 during which the power is supplied by the ch10 is reached until the timing t11 slightly delayed from the timing t10 at which the calibration test is completed with respect to the ch01 to ch09. Then, at timing t10, ch09 for which the calibration test has been completed is switched from the multimeter 121 side to the voltage conversion unit 123 side. Further, at timing t11, ch09 for which the calibration test has not ended is switched from the voltage conversion unit 123 side to the multimeter 121 side, and the calibration test is started. Then, the calibration test is terminated at timing t20 after the time Tr necessary for calibration of ch10 has elapsed. On the other hand, ch09 switched to the voltage conversion unit 123 side by the switching circuit 141 is switched from the voltage conversion unit 123 side to the multimeter 121 side at a timing slightly later than the timing t20 to supply power to the voltage conversion unit 123 side. Complete the supply. Note that the switching circuit 141 switches ch10 for which the calibration test has been completed from the multimeter 121 side to the voltage conversion unit 123 side to return to the default state at timing t20.

  Thus, the calibrator unit 102 and the charge / discharge test apparatus 101 in the charge / discharge test system 100 according to the present embodiment can supply power to the calibrator unit 102 during the calibration test.

  In the above example, the switching circuit 141 is provided in the two channels ch09 and ch10. However, the switching circuit 141 may be provided in other ch from ch01 to ch10, for example, as shown in FIG. The switching circuit 141 ′ may be provided for all the channels up to. Thereby, power can be supplied to the calibration machine unit 102 from any channel. In addition, when it is not possible to supply power having a capacity sufficient to operate the calibration machine unit 102 with one channel, power may be supplied in parallel from a plurality of channels. For example, when the power supply capacity for driving the calibrator unit 102 is + 5V and 2A is required, if the power supply capacity that can be supplied from one channel of the charge / discharge circuit 111 is only + 5V and 1A, the power supply capacity is Power is supplied to the calibrator unit 102 in parallel. For example, in the switching circuit 141 ′ illustrated in FIG. 11, the ch 09 and ch 10 pair and the ch 07 and ch 08 pair are determined in advance as ch for supplying power to the calibrator unit 102. Then, while power is supplied to the calibrator unit 102 from the ch of the pair of ch09 and ch10, the calibration test of each ch07 and ch08 is performed. Conversely, after the calibration test for each channel of ch07 and ch08 is completed, power is supplied to the calibrator unit 102 from the pair ch of ch07 and ch08, and the calibration test for each channel of ch09 and ch10 is performed. Thereby, even when the power supply capacity required for the operation of the calibration machine unit 102 is large, it is possible to cope with it. Here, the number of channels to be parallel does not have to be two, and a plurality of channels such as three may be parallel.

  Further, the channels for supplying power to the calibrator unit 102 may be shared fairly among all the channels. For example, as shown in FIG. 12, power is supplied to the calibrator unit 102 from any one of all the channels, and the calibration test is executed during a period when the power is not supplied. As a result, in the example of FIG. 10, the calibration test period is completely different between ch10 from ch01 to ch09 and ch10, and therefore the calibration test result may vary due to temporal fluctuations due to external factors. However, in the example of FIG. 11, since the time for the calibration test and the power supply is distributed to each channel, the calibration test can be performed fairly even when a temporal variation factor occurs. In FIG. 12, although simplified, as shown in FIG. 10, when switching the channel to which power is supplied, the power is supplied so that the power is supplied by overlapping with the switching destination channel. Control so that there is no interruption.

Next, an example of information transmitted to the test management apparatus 103 side in step S203 is shown below.
・ Calibration test date and time: October 1, 2011 16:30
・ Calibrator unit: Identification number = 0022
Charge / discharge test device: identification number = 1111
・ Measurement contents and result: Charging voltage 18.5V, charging current 2.2A
・ Presence / absence of calibration: None (all normal)

Here, unlike the secondary battery 150 of the product, the calibrator unit 102 is used many times in the factory, for example, temporarily placed in the standby rack 160, or put into a line of a different test mode. It is also possible. In addition, in the case of a system in which the calibrator unit 102 is moved to the standby rack 160 by a conveyor or the like, or is automatically loaded into the test line, instead of being transported manually by an operator, the test management apparatus 103 side individually It is necessary to grasp the position where the calibrator unit 102 is placed.

  Therefore, the RFID reader 192 of the charge / discharge test apparatus 101 described above is appropriately arranged on a conveyor on the line, the standby rack 160, or the like. Then, by connecting an RFID reader arranged on the line or the standby rack 160 to the control personal computer 133 of the test management apparatus 103 via the LAN, it is possible to know the position of which calibrator unit 102.

  In the example of FIG. 1, a specific method for moving the secondary battery 150, the calibrator unit 102, and the like to the position of the charge / discharge test apparatus 101 in the next test mode is not drawn. The information may be automatically distributed by a conveyor managed and controlled by 103, or may be manually performed by an operator. Further, the calibrator unit 102 may be moved only within a group of the same test mode, or may be moved including a group of different test modes. Furthermore, when the interval for flowing the calibrator units 102 is long or when the number of calibrator units 102 is large, a rack 160 for temporarily waiting the calibrator units 102 may be provided. Also in this case, the calibrator unit 102 is manually or automatically moved to the standby rack 160 by an operator or a conveyor, and flows to the target charge / discharge test apparatus 101 when performing calibration. The calibration schedule is determined in advance as a manufacturing process or manufacturing equipment inspection item. When an operator performs the calibration, the calibration is performed according to the calibration schedule. When the calibration is performed automatically, a test for managing a plurality of charge / discharge test apparatuses 101 is performed. The management apparatus 103 controls to perform calibration according to the calibration schedule.

  Next, an operation example of the test management apparatus 103 will be described with reference to FIG. Note that the test management apparatus 103 is controlled by the control personal computer 133. In addition, the flowchart of FIG. 13 describes only the calibration process performed by the control personal computer 133. Actually, the control personal computer 133 uses the serial of the secondary battery 150 as the production management of the secondary battery 150 as described above. Processing such as management of test results for each number is performed, and calibration schedule management and control of all charge / discharge test apparatuses 101 under its control are performed.

  Here, the calibrator unit 102 is connected to the charge / discharge test apparatus 101, the test in the test mode in which the charge / discharge test apparatus 101 is set is started, and the calibrator unit 102 starts calibration measurement accordingly. . It is assumed that the identification numbers of the charge / discharge test apparatus 101 and the calibration machine unit 102 have been acquired from each apparatus in advance as described above.

  (Step S301) The control personal computer 133 stands by until it receives a measurement value from the calibrator unit 102. Actually, the control personal computer 133 performs processing by interruption by the wireless master device 132, and therefore performs other processing during standby. When the measurement value is received from the calibrator unit 102, the process proceeds to the next step. The received measurement value includes the identification number of the calibration machine unit 102, the measurement date and time, and the like. The measurement date and time may be managed in association with the measurement value acquired and received on the test management apparatus 103 side. Here, since each charge / discharge test apparatus 101 reads the identification number of the calibrator unit 102 connected to the apparatus itself and notifies the test management apparatus 103, the test management apparatus 103 is connected to the calibrator unit 102. The connected charge / discharge test apparatus 101 can be known.

  (Step S302) The control personal computer 133 compares the measured value received in Step S301 with the output set value (the test value of the secondary battery 150) set in the charge / discharge test apparatus 101. If the comparison result is not within the predetermined range set in advance, the process proceeds to step S303. If the comparison result is within the predetermined range, the process proceeds to step S304.

  For example, when the output range of the charging voltage is set to 18V ± 0.5V from ch01 of the terminal group 107 of the charge / discharge test apparatus 101, the actual measurement of ch01 of the terminal group 108 of the multimeter 121 of the calibrator unit 102 is performed. If the voltage is 16V, the charging voltage is out of the output range, and the process proceeds to step S303. Here, as described above, when the output set value of the charge / discharge test apparatus 101 and the actually measured value are different from each other and completely deviate from the test specification of the secondary battery 150, it becomes a serious problem in manufacturing. All the past secondary batteries 150 tested by the same charge / discharge test apparatus 101 must be retested. Therefore, it is actually desirable to set a predetermined range that is stricter than the test specifications. As a result, when there is a deviation from the predetermined range but the test specification is satisfied, that is, when there is a possibility that the test specification may be lost if left unattended, the test specification can be adjusted to have a sufficient margin.

  (Step S303) The control personal computer 133 adjusts so as to increase the output voltage of ch01 of the terminal group 107 of the charge / discharge test apparatus 101 according to the comparison result of step S302. In the above example, the control personal computer 133 instructs the control unit 112 of the charge / discharge test apparatus 101 to increase the output voltage of ch01 by 2V via the HUB 131. Receiving this, the control unit 112 controls the charge / discharge circuit 111 so as to increase the output voltage of ch01 of the charge / discharge circuit 111 by 2V.

  After the adjustment is performed in this way, the process returns to step S301 to wait for the next measurement result to be sent from the calibrator unit 102. Then, when the measurement value of the same ch01 is received next, the result of the previous adjustment is reflected, and it can be confirmed whether the adjustment is within a predetermined range. If the adjustment is insufficient, the same operation is repeated until the adjustment is within a predetermined range.

  (Step S304) The control personal computer 133 ends the series of calibration processes for the charge / discharge test apparatus 101 when it receives a test end notification from the charge / discharge test apparatus 101, and returns to step S301 when it does not end. If the configuration does not end normally (for example, if it cannot be set to a normal value regardless of the adjustment in step S303), a calibration error is displayed on the screen of the control personal computer 133 together with the identification number of the charge / discharge test apparatus 101. And prompts the maintenance manager to stop using the charge / discharge test apparatus 101.

(Step S305) The control personal computer 133 records and manages the result of the calibration process of the charge / discharge test apparatus 101 on a hard disk in the personal computer. An example is shown below.
Identification number of charge / discharge test apparatus 101: 1112
・ Calibration date and time: October 3, 2011 6:00
・ Calibrator unit: Identification number = 0033
Calibration result: normal In this manner, the calibration unit 102 can automatically calibrate the charge / discharge test apparatus 101.

  Here, an example of managing the subordinate charge / discharge test apparatus 101 by the test management apparatus 103 will be described. FIG. 14 is a diagram showing an example of the calibration management table 251 held in the hard disk or memory card in the control personal computer 133. In FIG. 14, the calibration management table 251 is managed for each subordinate charge / discharge test apparatus 101. In the example of FIG. 14, calibration settings, calibration history, calibration schedule, and the like for the charge / discharge test apparatus 101 a 1 are stored in the calibration management table 251. For example, the calibration management table 251 stores operation start date: 20090401, test mode: A, scheduled calibration cycle: 14 days, and the like as calibration settings. Thereby, it turns out that the charging / discharging test apparatus 101a1 performs the test of the test mode A with respect to the secondary battery 150, and calibrates an own apparatus every 14 days. The control personal computer 133 refers to these settings in the calibration management table 251 to control the operation of each charge / discharge test apparatus 101 and to know which charge / discharge test apparatus 101 the calibration machine unit 102 should flow through. And the allocation of a plurality of proof machine units 102 can be managed.

  In the example of FIG. 14, calibration history / scheduled calibration is managed for each charge / discharge test apparatus 101, and calibration is performed on 20110921 using the calibration machine unit 102_4, and calibration machine unit 102_2 is used for 201111005 after 14 days. It can be seen that calibration was performed. Further, 201111019 is scheduled to be calibrated using the calibration machine unit 102_1, and it is understood that the calibration machine unit to be used is undecided in 201111102 after 14 days, but calibration is scheduled.

  In this way, the calibration history is accumulated in the control personal computer 133 on the test management apparatus 103 side.

  As described above, the calibrator unit 102 according to the present embodiment is configured with a casing having the same shape as the secondary battery 150, and the calibration test is performed by the charge / discharge test apparatus 101 by flowing the calibrator unit 102 to the production line. It can be performed. In particular, by sharing the test terminal of the charge / discharge test apparatus 101 and the power supply terminal to the calibrator unit, it is not necessary to mount a battery in the calibrator unit 102, and the calibrator unit 102 can be downsized. Can do. As a result, it is possible to cope with a production line for a secondary battery 150 having a small size.

  In addition, as described in the above embodiments, the calibration machine unit 102 and the charge / discharge test apparatus 101 according to the present invention automatically use the charge / discharge test apparatus 101 used when the secondary battery 150 is manufactured. Calibration can be performed automatically, and it is not necessary to perform regular calibration by a maintenance person, and the charge / discharge test apparatus 101 can be calibrated quickly, so that the production efficiency of the secondary battery 150 can be improved. .

  In the above, the charge / discharge test system, the calibrator unit, and the charge / discharge test apparatus according to the present invention have been described with reference to the respective embodiments. However, various other forms can be used without departing from the spirit or main features thereof. Can be implemented. For this reason, the above-described embodiment is merely an example in all respects and should not be interpreted in a limited manner. The present invention is defined by the claims, and the present invention is not limited to the text of the specification. Further, all modifications and changes belonging to the equivalent scope of the claims are within the scope of the present invention.

100 ... Charge / discharge test system 101, 101a1, 101a2, 101a3, 101b1, 101b2, 101b3, 101c1, 101c2, 101c3 ... Charge / discharge test apparatus 102, 102_1, 102_2, 102_3, 102_4, 102_5, 102_6 ... Calibration machine unit 103 ... Test management device 111 ... Charge / discharge circuit 112 ... Control unit 113 ... Power supply unit 117 ... Terminal group 118 ... Terminal group 121 ... Multimeter 122 ...・ Wireless handset 123 ... Voltage conversion unit 124 ... Battery 125 ... Measurement circuit 126 ... Measurement control unit 127 ... Charge circuit 128 ... Unit control unit 131 ... HUB
132: wireless master device 133: control personal computer 141, 141 '... switching circuit 142 ... position information acquisition unit 150, 150_1, 150_2, 150_3, 150_4 ... secondary battery 151 ... terminal Group 160 ... Standby racks 161, 162, 163 ... Ch charge / discharge circuit 164 ... Regenerative inverter 165 ... Boost circuit 166 ... Chopper circuit 167 ... Bias power supply 168, 169 ... Current 191 ... RFID tag 192 ... RFID reader

Claims (10)

In a charge / discharge test system having a charge / discharge test apparatus used for testing a secondary battery and a calibrator unit for calibrating the charge / discharge test apparatus,
The calibration unit is
Consists of connection terminals and casings of the same shape as the secondary battery,
Instead of the secondary battery, a measuring unit that is connected to the connection terminal and measures electrical characteristics;
Among the connection terminals, a power supply unit that supplies power to the unit that is input from the charge / discharge test apparatus via a predetermined part of the connection terminals,
Switching to connect the connection terminal for inputting power from the charge / discharge test apparatus to the power supply unit and to connect the connection terminal for measuring electrical characteristics with the charge / discharge test apparatus to the measurement unit. And
The charge / discharge test apparatus comprises:
A detection unit for detecting connection of the calibrator unit;
A charge / discharge unit that performs a charge and discharge test of the secondary battery and a calibration test by the calibrator unit and a power supply through the connection terminal connected to the secondary battery or the calibrator unit; and
The charge / discharge unit supplies power to the calibrator unit via a predetermined part of the connection terminals when the detection unit detects connection of the calibrator unit. Charge / discharge test system. The charge / discharge test system according to claim 1,
The calibration unit is
Wireless communication with the charge / discharge test apparatus, further comprising a wireless communication slave device for transmitting and receiving measurement information and control information of the measurement unit,
The power supply unit inputs from the charge / discharge test apparatus via a part of the connection terminals corresponding to predetermined cells among the connection terminals connected to each of a plurality of cells constituting the secondary battery. Supply power to the measurement unit and the wireless communication slave unit,
The wireless communication handset controls the switching unit according to the control information received from the charge / discharge test apparatus,
The charge / discharge test apparatus comprises:
A wireless communication master for transmitting and receiving the measurement information and the control information to and from the calibrator unit;
An electrical characteristic included in the measurement information received by the wireless communication master unit is compared with a set value of an electrical characteristic output from the charge / discharge unit to the calibrator unit, and output to the calibrator unit. A control unit that adjusts the electrical characteristics of the charge / discharge unit so that the characteristic becomes a predetermined specified value;
The said control part transmits the said control information for controlling the said switching part to the said radio | wireless communication subunit | mobile_unit via the said radio | wireless communication main | base station. The charging / discharging test system characterized by the above-mentioned. In a calibrator unit for calibrating a charge / discharge test apparatus used for a secondary battery test,
Consists of connection terminals and casings of the same shape as the secondary battery,
Instead of the secondary battery, a measuring unit that is connected to the connection terminal and measures electrical characteristics;
Among the connection terminals, a power supply unit that supplies power to the unit that is input from the charge / discharge test apparatus via a predetermined part of the connection terminals,
Switching to connect the connection terminal for inputting power from the charge / discharge test apparatus to the power supply unit and to connect the connection terminal for measuring electrical characteristics with the charge / discharge test apparatus to the measurement unit. A calibrator unit characterized by comprising: The calibrator unit according to claim 3,
Wireless communication with the charge / discharge test apparatus, further comprising a wireless communication slave device for transmitting and receiving measurement information and control information of the measurement unit,
The power supply unit inputs from the charge / discharge test apparatus via a part of the connection terminals corresponding to predetermined cells among the connection terminals connected to each of a plurality of cells constituting the secondary battery. Supply power to the measurement unit and the wireless communication slave unit,
The wireless communication slave device controls the switching unit according to the control information received from the charge / discharge test apparatus. The calibrator unit according to claim 3 or 4,
The switching unit has a predetermined default connection terminal among the at least two connection terminals for inputting power from the charge / discharge test apparatus, except when connected to the charge / discharge test apparatus. Maintaining the state connected to the power supply unit,
The calibrator unit, wherein the power supply unit detects a power supply input from the charge / discharge test apparatus via the default connection terminal and activates the measurement unit and the wireless communication slave unit. In the calibrator unit according to any one of claims 3 to 5,
The switching unit is connected to the charge / discharge test apparatus via a first connection terminal or a second connection terminal corresponding to at least two cells among the connection terminals connected to each of a plurality of cells constituting the secondary battery. When inputting power, when the power is being input from the charge / discharge test apparatus via the first connection terminal, the second connection terminal is connected to the measurement unit, and the power is input via the second connection terminal. The calibrator unit, wherein the first connection terminal is connected to the measurement unit when power is input from the charge / discharge test apparatus. The calibrator unit according to claim 6,
The switching unit switches the first connection terminal and the second connection during a predetermined overlapping period when switching from the first connection terminal receiving power from the charge / discharge test apparatus to the second connection terminal. A calibrator unit, wherein power is input from the charge / discharge test apparatus to both terminals, and then the first connection terminal is connected to the measurement unit. In the calibrator unit according to any one of claims 1 to 7,
A calibrator unit, further comprising an information storage unit that stores unit information of the device itself and is readable from the outside in a state where no power is supplied to the power supply unit. In the charging / discharging test apparatus which transmits / receives the said measurement information and the said control information between the said calibrator units as described in any one of Claim 3 to 8,
A detection unit for detecting connection of the calibrator unit;
A charge / discharge unit that performs a charge and discharge test of the secondary battery and a calibration test by the calibrator unit and a power supply through the connection terminal connected to the secondary battery or the calibrator unit; and
The charge / discharge unit supplies power to the calibrator unit via a predetermined part of the connection terminals when the detection unit detects connection of the calibrator unit. Charge / discharge test equipment. The charge / discharge test apparatus according to claim 9,
A wireless communication master for transmitting and receiving the measurement information and the control information to and from the calibrator unit;
An electrical characteristic included in the measurement information received by the wireless communication master unit is compared with a set value of an electrical characteristic output from the charge / discharge unit to the calibrator unit, and output to the calibrator unit. A control unit that adjusts the electrical characteristics of the charge / discharge unit so that the characteristic becomes a predetermined specified value;
The control unit receives the measurement information from the calibrator unit via the wireless communication master, and transmits the control information for controlling the switching unit to the calibrator unit. Charge / discharge test equipment.