JP2014044147A - Charging/discharging test system enabling check of incorrect wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a charging/discharging test system capable of detecting incorrect wiring.SOLUTION: A charging/discharging test system includes: a multichannel contact unit that is subjected to electric conduction collectively so as to hold all electrodes of a plurality of battery cells loaded on a pallet; and a voltage control unit that flows current to each battery cell in a state of holding the electrodes of the battery cells and checks the presence/absence of voltage rise of each battery cell. When voltage rise occurs, the charging/discharging test system determines that wiring between the battery cell in which the voltage rise occurs and the voltage control unit corresponding to the battery cell is normal, and notifies an operator of the fact. When voltage rise does not occur, the charging/discharging test system determines that the wiring between the battery cell in which the voltage rise does not occur and the voltage control unit corresponding to the battery cell is incorrect, and notifies the operator of the fact.

Description

  The present invention relates to a charge / discharge test system that can check for incorrect wiring.

  Patent Document 1 below discloses a voltage detection device and a test device that can accurately detect the terminal voltages of all samples in the charge / discharge process at a low cost even when the number of samples whose characteristics are confirmed and evaluated in parallel is large. In the invention, the intermittent means intermittently prevents charging of the element capable of accumulating charge through the conducting wire, and the measuring means prevents charging by the intermittent means. During this period, the voltage at the output terminal of the power supply to be charged is measured, and the measurement result is used as a reference for checking the characteristics of the element. During this period, the element is charged via the conductor. Therefore, a technical idea is disclosed in which the voltage drop of the conducting wire is not included in the measured voltage at the output terminal of the power supply.

  According to Patent Document 1, with the above-described configuration, it is possible to accurately check or evaluate the characteristics of a large number of elements at the time of charging and discharging at low cost, and at the time of charging and discharging of mounted elements. In the confirmation and evaluation of characteristics at the time, it is described that the cost can be reduced while maintaining the performance and reliability.

JP 2007-225424 A

  Since overcharging of the lithium ion battery poses a danger, it is necessary to take protective measures according to various situations. Also, when charging multiple battery cells mounted on a pallet simultaneously in a multi-channel charging test system, the load line and voltage measurement line are replaced with the load line and voltage measurement line of the adjacent channel due to incorrect wiring. If this is the case, charging cannot be controlled normally, and even if a dangerous voltage has been reached, this may not be detected and charging may continue as it is.

  By flowing a current through the battery cell for a certain period of time and checking whether or not the voltage value has increased, it is possible to prevent erroneous wiring from being charged by charging an abnormal channel.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a charge / discharge test system capable of detecting erroneous wiring.

  The charging / discharging test system of the present invention includes a multi-channel contact unit that collectively conducts electricity so as to sandwich all the electrodes of a plurality of battery cells mounted on a pallet, and each electrode of the plurality of battery cells. A voltage control unit that checks the presence or absence of a voltage rise in each battery cell by supplying a current to each battery cell in a state in which all of the battery cells are sandwiched. It is determined that the wiring with the voltage control unit is normal and notifies the operator, and if there is no voltage increase, the wiring between the battery cell and the corresponding voltage control unit is determined to be incorrect wiring. And notifying the operator.

  In addition, the charge / discharge test system of the present invention includes a multi-channel contact unit that takes electrical continuity so as to sandwich each electrode of a plurality of battery cells mounted on a pallet individually, and a plurality of battery cells. When there is a voltage rise, with a voltage control unit that checks whether there is a voltage rise in one battery cell by passing a current through one battery cell in a state where the electrode is sandwiched sequentially for each battery cell Determines that the wiring between the battery cell and the corresponding voltage control unit is normal and notifies the operator, and if there is no voltage increase, the battery cell and the corresponding voltage control unit A charge / discharge test system characterized in that wiring is determined to be incorrect wiring and is notified to an operator.

  The charge / discharge test system of the present invention is preferably a plurality of reference dummy battery cells in which a plurality of battery cells are previously set to different voltage values for each battery cell. Before passing the current, compare each measured voltage value of the plurality of reference dummy battery cells and the corresponding reference value, if they match, determine that the wiring of the voltage measurement line is normal and notify the operator, Each voltage value measured by a plurality of reference dummy battery cells is compared with a corresponding reference value, and if they do not match, it is determined that the wiring of the voltage measurement line is an incorrect wiring, and the operator is notified. .

  In the charge / discharge test system of the present invention, preferably, the plurality of battery cells have a plurality of IC tags in which the voltage value of each battery cell is previously set to a different voltage value for each battery cell and recorded in the IC tag of the battery cell. Reference dummy battery cell with a voltage, the voltage control unit compares each voltage value measured by a plurality of reference dummy battery cells with an IC tag and the recorded value read from the IC tag of the battery cell before passing the current If they match, it is determined that the wiring of the voltage measurement line is normal and the operator is notified, and each voltage value measured by the reference dummy battery cell with a plurality of IC tags and the record read from the IC tag of the battery cell are recorded. The values are compared, and if they do not match, it is determined that the wiring of the voltage measurement line is an incorrect wiring, and the operator is notified.

  In the charge / discharge test system according to the present invention, preferably, a plurality of battery cells are recorded in the host server in advance so that the voltage value of each battery cell is different from each battery cell and corresponds to the battery cell identification barcode. A plurality of reference dummy battery cells with identification barcodes, and the voltage control unit identifies each voltage value measured by the reference dummy battery cells with identification barcodes and the identification of the battery cells before flowing current. Compared with the recorded value read from the host server in association with the bar code, if they match, it is determined that the wiring of the voltage measurement line is normal, and the operator is notified, and a plurality of reference dummy battery cells with identification bar codes are Each measured voltage value is compared with the recorded value read from the host server in association with the identification barcode of the battery cell. And notifying the operator determines that the wiring of the measuring line is miswiring.

  According to the first aspect of the present invention, since the multi-channel contact unit grips the cells in a lump, the structure of the contact unit and the control of the gripping operation are simplified and the cost can be reduced. Moreover, it is possible to detect when only one of the voltage measurement line and the load line is miswired.

  Further, in the invention according to claim 2, since the multi-channel contact unit grips the cells individually for each channel, the structure and control of the multi-channel contact unit is complicated and slightly increases in cost. It is possible to detect not only when one of the load lines is miswired, but also when the voltage measurement line and the load line are miswired by switching to another channel.

  In the third, fourth, and fifth aspects of the invention, it is preferable that the multi-channel contact unit grasps the cells in a lump so that the structure and control of the multi-channel contact unit can be simplified and the cost can be reduced.

  Further, detection is possible even when only one of the voltage measurement line and the load line is miswired, or when the voltage measurement line and the load line are replaced with another channel and miswired.

  The voltage data recorded in the IC tag or the host server is preferably the latest latest data. In addition, it is preferable that the voltage values of the battery cells are different from each other from the viewpoint of more accurate cell identification and individual wiring check. In addition, if the voltage values of the battery cells are the same, it is preferable that the voltage values be different from each other by discharging with a discharge circuit or the like, or by switching to a cell with a different voltage.

It is a block diagram explaining the structure outline | summary of the charging / discharging test system of embodiment, and the pallet in which the battery used as a test object is mounted. It is a conceptual diagram explaining the detection range of the incorrect wiring by embodiment. It is a figure explaining the opening-and-closing state which is the electrode grip operation | movement of a contact, Comprising: (a) is a figure explaining the open state of all the contacts, (b) is a figure explaining the closed state of all the contacts. (C) is a figure explaining the closed state of only contact 1011 (1), and the open state of contacts 1011 (2), ..., 1011 (n). It is a figure explaining the variation of the incorrect wiring assumed between a contact unit and each voltage control part (CNV), Comprising: (a) shows the case where the incorrect wiring has arisen only in the voltage measurement line, (b ) Shows a case where miswiring occurs only in the load line, and (c) is a diagram showing a case where miswiring occurs in both the voltage measurement line and the load line. It is a conceptual diagram explaining the charging / discharging test system of 3rd embodiment. It is a conceptual diagram explaining the charging / discharging test system of 4th embodiment. It is a conceptual diagram explaining the charging / discharging test system of 5th embodiment.

(First embodiment)
In an example of the present embodiment, erroneous wiring is detected in a charge / discharge test system using a multi-channel contact unit of a type that collectively holds electrodes of a plurality of battery cells arranged on a pallet.

  In addition, a plurality of battery cells on the pallet gripped by the multi-channel contact unit are supplied with a current for a certain time for each channel to check whether the cell ΔV has increased.

  If ΔV increases, the wiring is determined to be normal. On the other hand, if there is no change in ΔV, it is determined that there is a miswiring. During this time, all the electrodes are held and closed. Detection is possible either when only the voltage measurement line is miswired or when only the load line is miswired.

  FIG. 1 is a block diagram illustrating a configuration outline of a charge / discharge test system 1000 according to the embodiment and a pallet 1500 on which a battery to be tested is mounted.

  1, the contact unit 1010 includes contacts 1011 (1), 1011 (2),..., 1011 (n) corresponding to the number of channels n. The contacts 1011 (1), 1011 (2),..., 1011 (n) each include a pair of laundry basket-like clamping members, and a plurality (maximum n) battery cells 1510 mounted on the pallet 1500. (1), 1510 (2),..., 1510 (n) are held together to form electrical continuity. In FIG. 1, the electrodes of the battery cells 1510 (1), 1510 (2),..., 1510 (n) are illustrated and described with one protruding configuration, but each battery cell 1510 ( 1), 1510 (2),..., 1510 (n) are provided with two electrodes, a positive electrode and a negative electrode.

  Each of the contacts 1011 (1), 1011 (2),..., 1011 (n) has a corresponding voltage measurement line 1020 (1), 1020 (2),. Lines 1030 (1), 1030 (2),..., 1030 (n) are connected to each other. The voltage measurement lines 1020 (1), 1020 (2),..., 1020 (n) and the load lines 1030 (1), 1030 (2),. It is assumed that two lines (not shown) with a minus line are provided.

  Further, the voltage measurement lines 1020 (1), 1020 (2),..., 1020 (n) and the load lines 1030 (1), 1030 (2),. To the voltage control units (CNV) 1040 (1), 1040 (2),..., 1040 (n) for n channels mounted on the voltage control unit 1045, respectively. .

  That is, the voltage measurement line 1020 (1) and the load line 1030 (1) of the channel 1 are connected to the voltage control unit 1040 (1). Further, the voltage measurement line 1020 (2) and the load line 1030 (2) of the channel 2 are connected to the voltage control unit 1040 (2). Similarly, the voltage measurement line 1020 (n) and the load line 1030 (n) of the channel n are connected to the voltage control unit 1040 (n).

  As shown in FIG. 1, the voltage control unit 1045 and the sequencer (PLC) 1050 are connected to the control personal computer 1070 via the LAN 1060. The control personal computer 1070 stores a charge / discharge test program for each channel, and can perform a charge / discharge test separately for each channel in accordance with each test program. In addition, the operator inputs instructions for starting and stopping the test, setting test conditions, and the like via the control personal computer 1070, and grasping the contacts 1011 (1), 1011 (2),..., 1011 (n). It is possible to remotely control the performance, and it is possible to monitor the status of the battery cells 1510 (1), 1510 (2),..., 1510 (n) to be tested.

  With the above-described configuration, the charge / discharge test system 1000 simultaneously collects the plurality of battery cells 1510 (1), 1510 (2),..., 1510 (n) mounted on the pallet 1500 under individual conditions. Based on this, a charge / discharge test can be performed.

  Here, when performing the charge / discharge test, the contact unit 1010 and / or the contact unit 1010 and each voltage control unit (CNV) 1040 (1), 1040 (2),..., 1040 (n) If there is a miswiring in the meantime, the correct test cannot be performed and desired test data cannot be acquired. That is, it becomes unclear which battery cell is charged / discharged and which battery cell voltage data is acquired, which is inaccurate.

  Therefore, in order to perform a correct charge / discharge test, it is preferable to check for miswiring at least before the start of the first test when a plurality of battery cells are tested. On the other hand, since the charge / discharge test system 1000 has a large number of channels, the number of wires tends to increase, and there are many internal wires that are covered with a housing and cannot be visually confirmed. Checking is not easy.

  FIG. 2 is a conceptual diagram illustrating a miswiring detection range according to the embodiment. As is clear from FIG. 2, in the embodiment, it is possible to detect miswiring in almost all ranges (broken line area on the right side of the drawing) where the miswiring of the charge / discharge test system 1000 may occur. . In FIG. 2, parts corresponding to those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted to avoid duplication.

  FIG. 3 is a diagram for explaining an open / close state that is an electrode gripping operation of the contacts 1011 (1), 1011 (2),..., 1011 (n), and FIG. ), 1011 (2),..., 1011 (n), and FIG. 10B is a view illustrating all the contacts 1011 (1), 1011 (2),. (C) is a diagram for explaining the closed state of only the contact 1011 (1) and the open state of the contacts 1011 (2),..., 1011 (n).

  FIG. 4 is a diagram for explaining a variation of erroneous wiring assumed between the contact unit 1010 and each voltage control unit (CNV) 1040 (1), 1040 (2),..., 1040 (n). (A) shows the case where miswiring occurs only in the voltage measurement line, (b) shows the case where miswiring occurs only in the load line, and (c) shows the voltage measurement line and the load. It is the figure which showed the case where the miswiring has arisen in both the lines.

  That is, as shown in FIG. 4A, the voltage measurement line 1020 (1) should be connected to the terminal corresponding to the same contact 1011 (1) as the load line 1030 (1). The voltage measurement line 1020 (2) is connected to the terminal corresponding to the contact 1011 (1) instead of being connected to the terminal corresponding to the contact 1011 (2). In this state, the voltage control unit (CNV) 1040 (1), 1040 (2) includes a battery to which the voltage / current is applied through the load lines 1030 (1), 1030 (2), and a target battery for measuring the voltage. Since they are different, an accurate charge / discharge test cannot be performed.

  Further, as shown in FIG. 4B, the load line 1030 (1) should be connected to the terminal corresponding to the same contact 1011 (1) as the voltage measurement line 1020 (1). It is connected to a terminal corresponding to the contact 1011 (2), and instead, the load line 1030 (2) is erroneously connected to a terminal corresponding to the contact 1011 (1). In this state, the voltage control unit (CNV) 1040 (1), 1040 (2) applies a voltage current to the load lines 1030 (1), 1030 (2), and the voltage measurement line 1020 (1), Since the target battery whose voltage is measured in 1020 (2) is different, an accurate charge / discharge test cannot be performed.

  4C, the voltage measurement line 1020 (1) and the load line 1030 (1) are both connected to the contact 1011 (2), while the voltage measurement line 1020 (2) and the load line 1030 ( 2) are connected to the contact 1011 (1), and all the two wirings are interchanged, so that an accurate charge / discharge test cannot be performed in the same manner.

  As can be understood from FIG. 4, in any case shown in FIG. 4, it is impossible to correctly obtain test data by performing a desired charge / discharge test on a desired battery cell. 3 and 4, the same reference numerals are given to the portions corresponding to those in FIG. 1, and the description thereof is omitted to avoid duplication.

  In the first embodiment, all the contacts 1011 (1), 1011 (2),..., 1011 (n) are closed as shown in FIG. Unit (CNV) 1040 (1), 1040 (2),..., 1040 (n), battery cells 1510 (1), 1510 (2),. ), For example, the current (about 10% of the rated value) is allowed to flow for about 30 seconds to 1 minute to measure whether the voltage (ΔV) has increased.

  If the voltage rises, it is determined that there is no miswiring for the channel. As a result, an error occurs in either the case where the miswiring occurs only in the voltage measurement line shown in FIG. 4A or the case where the miswiring occurs only in the load line shown in FIG. It is possible to detect the wiring and notify the operator.

(Second embodiment)
In the second embodiment, the plurality of battery cells 1510 (1), 1510 (2),..., 1510 (n) mounted on the pallet 1500 are sequentially grasped individually for each channel, and electrical connection is sequentially performed. A miswiring is detected using the multi-channel contact unit 1010 to be confirmed individually.
For each of the battery cells 1510 (1), 1510 (2),..., 1510 (n) on the pallet 1500 held by one multi-channel contact unit 1010, it is constant for each gripped channel. The current is passed for the time to check the rise of the cell ΔV. If ΔV increases, the wiring is determined to be normal.

  Here, as shown in FIG. 3 (c), the contact 1011 (1) is held and closed only for one channel to be checked, and the contacts 1011 (2),..., 1011 (n) of the other channels. Is open. Then, the wiring check operation for the channel 1 is performed. Next, the contact 1011 (2) is held and closed only for one channel to be checked, and the contacts 1011 (1), 1011 (3),..., 1011 (n) of other channels are open. To. This is performed step by step for each n channel.

  In the second embodiment, as shown in FIGS. 4A and 4B, voltage measurement lines 1020 (1), 1020 (2),..., 1020 (n) and load lines 1030 (1), 1030 (2),..., 1030 (n) can be detected even if only one side is miswired, as shown in FIG. The voltage measurement lines 1020 (1), 1020 (2),..., 1020 (n) and the load lines 1030 (1), 1030 (2),. It is possible to detect even when the whole is replaced and miswired.

(Third embodiment)
In the third embodiment, it is possible to detect miswiring with a multi-channel contact unit of a type that holds a plurality of battery cells on a pallet at a time. Moreover, the miswiring of a voltage measurement line and a load line is detected using a reference dummy battery cell.

  Each voltage of the reference dummy battery cell is preferably adjusted in advance to a different voltage. If there are battery cells having the same voltage, they may be discharged by a discharge circuit or the like so that the voltages are different from each other, or the reference dummy battery cells may be replaced with those having different voltages.

  Grasp all the reference dummy battery cells with the multi-channel contact unit, and grab all the contacts and keep them closed. Each voltage of the reference dummy battery cell may be a predetermined different voltage value. Further, the voltage of each reference dummy battery cell may be measured by a voltage measuring instrument (not shown) mounted on a dummy cell pallet jig (not shown), and the measured voltage data of all channels may be transmitted to the charging test system.

  This charging test system compares the measured voltage of the reference dummy battery cell measured by the voltage measurement line for each channel with the voltage data of a known or notified reference dummy battery cell set in advance. If the two match, it is determined that the voltage measurement line of the confirmation target channel is normal.

  Further, the channel for which the wiring of the voltage measurement line is determined to be normal continuously checks the increase in ΔV of the cell by supplying a current for each channel for a certain period of time. If ΔV rises, it is determined that the load line wiring of the channel is normal.

  Detection is possible not only when one of the voltage measurement line and load line is miswired, but also when another channel, voltage measurement line, and load line are swapped together and miswired. .

  FIG. 5 is a conceptual diagram illustrating a charge / discharge test system 5000 according to the third embodiment. As shown in FIG. 5, the plurality of reference dummy battery cells 5510 (1), 5510 (2), 5510 (3),..., 5510 (n) mounted on the pallet 5500 are 3.00 V, 3 .., 10V, 3.20V,..., XxV and different preset voltage values.

  The voltage values of the reference dummy battery cells 5510 (1), 5510 (2), 5510 (3),..., 5510 (n) are represented by the corresponding voltage control units 5040 (1), 5040 (2), 5040 (3),..., 5040 (n) are compared with actual voltage data measured using each voltage measurement line.

  As a result of the comparison, if the known voltage data matches the actual measurement voltage value, it is determined that there is no miswiring for the voltage measurement line. In this case, the contact unit 5010 grasps the corresponding electrodes collectively for each reference dummy battery cell 5510 (1), 5510 (2), 5510 (3),..., 5510 (n). Although it is preferable to establish an electrical connection, the present invention is not limited to this. For example, the electrical connection may be established by sequentially grasping the corresponding electrodes.

(Fourth embodiment)
In the fourth embodiment, using a multi-channel contact unit of a type that collectively holds a plurality of battery cells on a pallet, a cell voltage value recorded in advance on an IC tag attached to each battery cell is used. Thus, miswiring between the voltage measurement line and the load line can be detected.

  It is assumed that the voltage data on the IC tag is stored by measuring the latest voltage value of each battery cell in the pre-test process of the charge / discharge test system. In this case, it is preferable that the voltage values of the battery cells are different from each other. When there are battery cells having the same voltage, they may be discharged by a discharge circuit or the like so that the voltage values are different from each other, or part of the battery cells may be replaced.

  When performing the miswiring detection operation, all the battery cells may be grasped by the multi-channel contact unit, and all the contacts may be grasped and kept closed as shown in FIG.

  In addition, the charging test system of the present embodiment reads the voltage data of the IC tag and compares each voltage of the battery cell measured by the voltage measurement line for each channel with the voltage data read from the IC tag in correspondence with each other. .

  If the actually measured voltage value of the battery cell matches the voltage data of the IC tag, it is determined that there is no miswiring for the voltage measurement line of the confirmation target channel. In addition, for the channel for which the voltage measurement line is determined to be normal, a current is allowed to flow for a certain period of time for each channel to check whether ΔV of the battery cell has increased. If ΔV rises, it is determined that the wiring of the load line of this channel is normal.

  In the fourth embodiment, even when only one of the voltage measurement line and the load line is miswired as shown in FIGS. 4 (a) and 4 (b), it is also shown in FIG. 4 (c). Thus, even when the entire channel is replaced with another channel and miswired, detection is possible in any case.

  FIG. 6 is a conceptual diagram for explaining a charge / discharge test system 6000 of the fourth embodiment. As shown in FIG. 6, the plurality of reference dummy battery cells 6510 (1), 6510 (2), 6510 (3),..., 6510 (n) mounted on the pallet 6500 are 3.00 V, 3 It is preferable that the voltage values are preset known voltage values different from .10V, 3.20V,.

  As for the voltage values of the reference dummy battery cells 6510 (1), 6510 (2), 6510 (3),..., 6510 (n), the latest value of the known voltage data is recorded in each IC tag. Yes. Then, the charge / discharge test system 6000 reads the voltage value data recorded on the IC tag, and the corresponding voltage control units 6040 (1), 6040 (2), 6040 (3),..., 6040 (n). And is compared with actual voltage data measured using each voltage measurement line.

  As a result of the comparison, if the voltage data of the IC tag matches the actual measurement voltage value, it is determined that there is no miswiring for the voltage measurement line. In this case, the contact unit 6010 grasps the corresponding electrodes collectively for each reference dummy battery cell 6510 (1), 6510 (2), 6510 (3),..., 6510 (n). Although it is preferable to make an electrical connection, the present invention is not limited to this. For example, the wiring may be checked by grasping the corresponding electrodes one after another and making an electrical connection. Further, the reference dummy battery cells 6510 (1), 6510 (2), 6510 (3),..., 6510 (n) do not necessarily have to be constituted by battery cells having a reference voltage value. As long as the latest voltage value of the battery cell is stored in the IC tag provided, an actual battery cell to be tested can be used.

(Fifth embodiment)
In the fifth embodiment, using a multi-channel contact unit of a type that grasps a plurality of battery cells on a pallet at once, using the voltage value of the battery cell received from the data management server, the voltage measurement line and the load Detects miswiring of wires.

  The charge / discharge test system reads the cell ID from each barcode of the battery cell, and acquires voltage data of each battery cell associated with the read cell ID from the data management server that manages the battery cell.

  The voltage on the data management server is the latest cell voltage value measured in the previous process. The charge / discharge test of the battery cell may be performed as a reliability test of the manufactured product subsequent to the battery cell manufacturing process. For this reason, it is assumed that the measured voltage value at the time of manufacture in the pre-process of the charge / discharge test of the battery cell is stored in the data management server in association with the identification barcode of each battery cell.

  Moreover, the voltage value of a battery cell shall be a mutually different voltage value. When there are battery cells having the same voltage, they may be discharged by a discharge circuit or the like so that the voltage values are different from each other, or the cells may be replaced.

  Further, when performing the wiring check, the multi-channel contact unit can hold all the plurality of cells, and all the contacts can be held and closed. The charge / discharge test system obtains the voltage of each battery cell from the data management server based on the barcode, and the voltage of the battery cell actually measured with the voltage measurement line for each channel and the voltage acquired from the data management server. Compare the data.

  If the actually measured voltage of the battery cell matches the voltage data acquired from the data management server, it is determined that there is no miswiring in the voltage measurement line of the confirmation target channel. In addition, the channel in which the wiring of the voltage measurement line is determined to be normal continuously checks the presence or absence of an increase in the ΔV of the cell by supplying a current for a certain time for each channel. If ΔV increases, it is determined that there is no miswiring in the load line.

  In the fifth embodiment, as shown in FIGS. 4A and 4B, even when only one of the voltage measurement line and the load line is miswired, it is also shown in FIG. 4C. In this way, even when the entire channel is replaced with another channel and miswired, the miswiring can be detected in any case.

  FIG. 7 is a conceptual diagram illustrating a charge / discharge test system 7000 of the fifth embodiment. As shown in FIG. 7, the plurality of reference dummy battery cells 7510 (1), 7510 (2), 7510 (3),..., 7510 (n) mounted on the pallet 7500 are 3.00 V, 3 It is preferable that the voltage values are preset known voltage values different from .10V, 3.20V,.

  The voltage values of the reference dummy battery cells 7510 (1), 7510 (2), 7510 (3),..., 7510 (n) are the latest values of the known voltage data. ) And recorded in the data management server 7600. Then, the charge / discharge test system 7000 reads the voltage value data recorded in the data management server on the basis of the cell identification bar code, and the voltage control units 7040 (1), 7040 (2), 7040 (3), 7040 (3), .., 7040 (n), and is compared with actual voltage data measured using each voltage measurement line.

  As a result of the comparison, if the voltage data read from the data management server 7600 matches the actual measurement voltage value, it is determined that there is no miswiring for the voltage measurement line. In this case, the contact unit 7010 grasps the corresponding electrodes collectively for each reference dummy battery cell 7510 (1), 7510 (2), 7510 (3),..., 7510 (n). Although it is preferable to make an electrical connection, the present invention is not limited to this. For example, the wiring may be checked by grasping the corresponding electrodes one after another and making an electrical connection. Further, the reference dummy battery cells 7510 (1), 7510 (2), 7510 (3),..., 7510 (n) do not necessarily have to be constituted by battery cells having a reference voltage value. As long as the latest voltage value of the corresponding battery cell is stored in the voltage data of the data management server 7600 stored in association with the identification barcode provided, the actual battery cell to be tested can be used.

  The charge / discharge test systems 1000, 5000, 6000, 7000 and the like exemplified in the above embodiments are not limited to the description in each embodiment, but are within the scope of the technical idea described in each embodiment and are obvious. Within the scope, the configuration, operation, operation method, and the like can be changed as appropriate. In addition, for convenience of explanation, each embodiment has been described individually. However, the configurations of the embodiments may be applied in an appropriate combination, and operations thereof may be arranged in an appropriate combination.

  The charge / discharge test system of the present invention can be widely applied as a charge check device for secondary batteries and various storage batteries, and a wiring check configuration for a discharge test device.

  1000 ... Charge / discharge test system, 1010 ... Contact unit, 1011 (1) ... Contact, 1020 ... Voltage measurement line, 1030 ... Load line, 1040 (1) ... Voltage controller, 1045 ... Voltage control Unit, 1050, palette, 1510 (1), battery cell, 1060, LAN, 1070, control PC.

Claims (5)

A multi-channel contact unit that collectively conducts electricity so as to sandwich all the electrodes of a plurality of battery cells mounted on the pallet;
A voltage control unit that checks the presence or absence of a voltage increase in each battery cell by passing a current for each battery cell in a state where all the electrodes of the plurality of battery cells are sandwiched. In this case, it is determined that the wiring between the battery cell and the voltage control unit corresponding thereto is normal, and the operator is notified, and when there is no voltage increase, the battery cell and the voltage control unit corresponding thereto The charging / discharging test system is characterized in that it is determined that the wiring with is incorrect wiring and is notified to the operator. A multi-channel contact unit that takes electrical continuity so as to sandwich each electrode of a plurality of battery cells mounted on a pallet individually and sequentially,
A voltage control unit that checks whether or not there is a voltage increase in the one battery cell by passing a current through the one battery cell in a state where the electrode is sequentially held for each battery cell among the plurality of battery cells; When there is a voltage increase, it is determined that the wiring between the battery cell and the corresponding voltage control unit is normal, and the operator is notified, and when there is no voltage increase, the battery cell A charge / discharge test system characterized in that the wiring with the corresponding voltage control unit is determined to be incorrect wiring and is notified to the operator. In the charge / discharge test system according to claim 1 or 2,
The plurality of battery cells are a plurality of reference dummy battery cells in which the voltage value of each battery cell is set to a different voltage value for each battery cell in advance,
The voltage control unit compares each measured voltage value of the plurality of reference dummy battery cells with a corresponding reference value before passing a current, and determines that the voltage measurement line is normal if they match. The operator notifies the operator, compares each voltage value measured by the plurality of reference dummy battery cells with the corresponding reference value, and if they do not match, determines that the wiring of the voltage measurement line is incorrect wiring. A charge / discharge test system. In the charge / discharge test system according to claim 1 or 2,
The plurality of battery cells are reference dummy battery cells with a plurality of IC tags that are recorded in the IC tag of the battery cell in which the voltage value of each battery cell is different from the voltage value for each battery cell in advance,
The voltage control unit compares each measured voltage value of the plurality of reference dummy battery cells with an IC tag and a recorded value read from the IC tag of the battery cell before passing a current, and if they match, the voltage Determine that the wiring of the measurement line is normal and notify the operator, and compare each voltage value measured by the plurality of reference dummy battery cells with IC tags with the recorded value read from the IC tag of the battery cell. If it does not match, it is determined that the wiring of the voltage measurement line is incorrect, and the operator is notified and the charge / discharge test system is characterized. In the charge / discharge test system according to claim 1 or 2,
The plurality of battery cells have a plurality of identification barcodes recorded in a host server in advance so that the voltage value of each battery cell is different from each battery cell and corresponds to the identification barcode of the battery cell. Reference dummy battery cell with
The voltage control unit is configured to read the voltage values measured by the plurality of reference dummy battery cells with identification barcodes and the identification values of the battery cells and read from the host server before flowing the current. If they match, it is determined that the wiring of the voltage measurement line is normal, and the operator is notified, and the voltage values measured by the reference dummy battery cells with the plurality of identification bar codes and the identification of the battery cells A charge / discharge test system characterized by comparing a recorded value associated with a bar code with a recorded value read from the host server, and if it does not match, determines that the wiring of the voltage measurement line is an incorrect wiring and notifies the operator .

Images