WO2024259681A1 - 测试系统及其测试方法 - Google Patents

测试系统及其测试方法 Download PDF

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Publication number
WO2024259681A1
WO2024259681A1 PCT/CN2023/101919 CN2023101919W WO2024259681A1 WO 2024259681 A1 WO2024259681 A1 WO 2024259681A1 CN 2023101919 W CN2023101919 W CN 2023101919W WO 2024259681 A1 WO2024259681 A1 WO 2024259681A1
Authority
WO
WIPO (PCT)
Prior art keywords
test
battery module
test system
host computer
instruction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/101919
Other languages
English (en)
French (fr)
Inventor
成家务
龚雪清
周光伟
周凯
王海杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to PCT/CN2023/101919 priority Critical patent/WO2024259681A1/zh
Priority to EP23837536.4A priority patent/EP4509856A1/en
Priority to CN202380061180.1A priority patent/CN119790312B/zh
Priority to US18/521,800 priority patent/US20240426937A1/en
Publication of WO2024259681A1 publication Critical patent/WO2024259681A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/56Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/382Arrangements for monitoring battery or accumulator variables, e.g. SoC
    • G01R31/3835Arrangements for monitoring battery or accumulator variables, e.g. SoC involving only voltage measurements
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385Arrangements for measuring battery or accumulator variables
    • G01R31/3865Arrangements for measuring battery or accumulator variables related to manufacture, e.g. testing after manufacture
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/389Measuring internal impedance, internal conductance or related variables
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/396Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58Testing of lines, cables or conductors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4285Testing apparatus
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00Television systems
    • H04N7/18Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H04N7/183Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast for receiving images from a single remote source
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/52Testing for short-circuits, leakage current or ground faults
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/54Testing for continuity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/55Testing for incorrect line connections
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/42Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4207Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially

Definitions

  • the present application relates to the technical field of battery module testing, and in particular to a testing system and a testing method thereof.
  • the battery module in the automotive power battery system is composed of single cells connected in series and parallel.
  • the sampling harness of the module is used to collect the voltage of each single cell of the module, the total open circuit voltage after series and parallel connection, and the temperature of the temperature monitoring point, and output it through a standard connector. If the sampling harness of the module has poor contact or is open, it will cause the loss of voltage and temperature points, and make the car unable to drive on the road or cause driving failures. Therefore, the module harness continuity test is very important in the production process of the battery module.
  • the module wiring harness continuity test method mainly uses test equipment to test the voltage of the battery cell. Frequent wiring is required during the test, and the test speed is slow and inefficient.
  • the main purpose of this application is to provide a testing system to improve testing efficiency and testing accuracy.
  • test system proposed in this application includes:
  • test circuit board wherein the test circuit board is provided with a test circuit, wherein the test circuit includes a plurality of bus lines arranged side by side, wherein one end of each bus line is used to be connected to the positive electrode or the negative electrode of each battery cell of the battery module, and the other end of each bus line is connected to a first branch and a second branch; each of the first branches is provided with a control switch, and each of the second branches is provided with a control switch;
  • a testing device used to test parameter information of multiple battery cells of the battery module
  • a lower computer the lower computer is electrically connected to the control switch to control a first branch connected to one of the main circuits to be electrically connected to the positive electrode of the test device, and a second branch connected to another main circuit to be electrically connected to the negative electrode of the test device;
  • the upper computer is communicatively connected with the test device and the lower computer to control the operation of the lower computer and read parameter information of the test device.
  • each main circuit is connected to the positive electrode of each battery cell of the battery module, and the other end is connected to the test equipment through a branch line.
  • the upper computer sends a test instruction to the lower computer, and the lower computer can control the control switch that needs to be turned on, so that the first branch of a main circuit is electrically connected to the positive electrode of the test equipment, and the second branch of another main circuit is electrically connected to the negative electrode of the test equipment.
  • the test equipment can detect the parameter information of the battery cells in the battery module.
  • the above-mentioned two main circuits can select two adjacent ones, or the corresponding two main circuits can be selected according to the connector pin definition on the battery module wiring harness board.
  • the first branch of one of the other two main circuits is controlled to be electrically connected to the positive electrode of the test equipment, and the second branch of the other is controlled to be electrically connected to the negative electrode of the test equipment, so as to detect the parameter information of other battery cells, such as voltage or resistance, etc., and so on.
  • the parameter information of multiple battery cells in the battery module can be detected.
  • the host computer in the test system can obtain the detection data of the test equipment, process and analyze it, and then obtain the connection and disconnection status of the wiring harness.
  • the testing system in the present application can realize the sequential detection of multiple battery cells in the battery module without the need for manual repeated plugging and unplugging of wiring, thereby improving detection efficiency and detection accuracy.
  • a plurality of the first branches are connected at one end away from the main line to form a first connection end
  • a plurality of the second branches are connected at one end away from the main line to form a second connection end
  • one of the first connection end and the second connection end is electrically connected to the positive pole of the test device, and the other is electrically connected to the negative pole of the test device.
  • setting the first connection end and the second connection end can make it unnecessary for the multiple first branches and the multiple second branches to be repeatedly plugged in and out of the test equipment, further reducing the operating procedures, improving the detection efficiency, protecting the line and reducing the chance of damage.
  • At least two first connection ends are provided, and at least two first connection ends are arranged in parallel;
  • At least two first connection terminals and two second connection terminals are provided, so that when one of the first connection terminals fails, the others can be used as alternatives, thereby improving the performance of the test circuit.
  • the test circuit further includes a plurality of fuses, each of which is disposed on one of the bus lines.
  • Each bus line is equipped with a fuse to effectively prevent the battery module from short-circuiting due to damage to the battery module's connector or the intermediate connecting plug, thereby damaging the equipment.
  • the test device is a multimeter, which includes a voltage mode and a resistance mode.
  • the multimeter is electrically connected to the host computer or the slave computer to switch between the voltage mode and the resistance mode.
  • the test equipment can be selected as a multimeter, which can have multiple operation modes and multiple gears.
  • the host computer or the slave computer controls the multimeter to switch to the resistance mode, it can also detect thermistors at multiple battery cells and then obtain the temperature value corresponding to the resistance.
  • the use of a multimeter can further improve the detection efficiency and simplify the structure.
  • the test system further includes a test adapter harness, one end of the plurality of bus lines is connected to an aviation plug, and both ends of the test adapter harness are respectively plugged into the aviation plug and the plug-in end of the battery module.
  • the test system further includes a reading mechanism, which is electrically connected to the host computer and is used to read the barcode information of the battery module and send it to the host computer.
  • the host computer calls the test plan according to the barcode information.
  • the host computer can obtain the corresponding detection formula of the battery module, thereby improving applicability and detection accuracy.
  • the testing system further includes a testing frame, which includes a plurality of horizontal beams and a plurality of vertical beams connected vertically and horizontally, wherein the plurality of horizontal beams and the vertical beams enclose a testing channel for the battery module to pass through, and the reading mechanism is disposed in the testing channel.
  • the test frame can provide a testing environment for the battery module, prevent external interference, effectively improve the protection performance, and facilitate the assembly and fixation of various components, such as the reading mechanism.
  • the test system further includes an image acquisition device, which is disposed on one of the beams and electrically connected to the host computer to capture and sample the battery modules in the test channel and send the images to the host computer.
  • the image acquisition device can collect and store the overall condition of the battery module and the connection condition of the battery cells, thereby providing a traceability basis for subsequent performance analysis.
  • the test system further comprises a light source, which is disposed on another of the beams and is located on one side of the image acquisition device;
  • the test system further comprises a safety grating, which is arranged between two oppositely arranged vertical beams and is electrically connected to the host computer to block the test channel.
  • the setting of the light source can provide supplementary light for the battery module to be inspected, thereby improving the image acquisition effect.
  • the setting of safety light grid can further enhance the protection.
  • the test system also includes an integrated cabinet, which forms a accommodating cavity and is located on one side of the test frame.
  • the test circuit board, test equipment and lower computer are all arranged in the accommodating cavity, and the aviation plug is at least partially exposed in the integrated cabinet.
  • integrating various components into an integrated cabinet can effectively save floor space and improve the flexibility of equipment installation.
  • the integrated cabinet is placed outside the test frame, outside the production line, which improves the maintainability of the equipment.
  • the test system further includes a warning member, which is installed on the test frame and/or the integrated cabinet and is electrically connected to the host computer to reflect the operating status of the test system.
  • the warning device can display the operating status of the test system, such as normal operation, failure or standby, so that prediction can be made in advance, rework can be avoided, and detection efficiency can be improved.
  • the test system further includes a human-computer interaction device, which is installed on the test frame and electrically connected to the host computer to display detection information or debug the test system.
  • the human-computer interaction device enables the operator to monitor the detection data of the test system and adjust the operating parameters of the test system at any time to ensure the test performance of the test system.
  • one of the vertical beams is rotatably connected to a mounting frame, and the human-machine interaction device is mounted on the mounting frame so as to be rotatably arranged on a horizontal plane relative to the test frame.
  • the vertical beam is rotatably connected to the mounting frame, so that the mounting frame can be rotatably arranged in a horizontal plane, thereby adjusting the orientation of the human-machine interaction device, further facilitating viewing and operation by operators.
  • the test system further includes a storage member, and the storage member is disposed on one of the horizontal beams or vertical beams to store the adapter test harness.
  • the arrangement of the storage piece can facilitate the storage of the transfer test harness, making the test system more tidy and preventing the transfer test harness from being damaged.
  • the test system further includes a starter, the starter is disposed on the periphery of the test frame, the starter is provided with two starter parts, and the two starter parts are electrically connected to the host computer to start the test system;
  • test system further includes a card swiper, which is installed on the test frame and electrically connected to the host computer.
  • the starter is used to start the test system. By controlling the two starters with both hands at the same time, the operator's hands can be placed outside the test channel, thereby avoiding interference with the test and improving protection.
  • the setting of the card reader improves the security level of the test system. Only after swiping the card to confirm the identity can the test system be debugged and controlled.
  • the present application also proposes a test method for a test system, wherein the test system comprises a test circuit board, a test device, a host computer and a slave computer.
  • the method includes the following steps:
  • the upper computer sends a test instruction to the lower computer
  • the lower computer receives the test instruction and controls a first branch connected to one of the two main circuits on the test circuit board to be electrically connected to the positive electrode of the test device, and a second branch connected to the other main circuit to be electrically connected to the negative electrode of the test device;
  • the testing device detects parameter information of the battery cell
  • the host computer sends an instruction to read parameter information of the test device, and receives and stores the parameter information.
  • the method is that the upper computer sends a test instruction to the lower computer, and the lower computer can control the control switch that needs to be turned on, so that the first branch of a main circuit is electrically connected to the positive pole of the test equipment, and the second branch of the other main circuit is electrically connected to the negative pole of the test equipment.
  • the test equipment can detect the parameter information of the battery cells in the battery module.
  • the above-mentioned two main circuits can select two adjacent ones, or the corresponding two main circuits can be selected according to the connector pins on the battery module wiring harness board.
  • the parameter information of multiple battery cells can be detected in sequence.
  • the method of the test system in this application can realize the sequential detection of the parameters of multiple battery cells in the battery module, without the need for manual repeated plugging and unplugging of wiring, thereby improving the detection efficiency and the detection accuracy.
  • the test device includes a multimeter, the multimeter has a voltage mode and a resistance mode, and is electrically connected to the lower computer, and the parameter information is voltage data;
  • the method further comprises:
  • the lower computer sends a switching mode instruction to the multimeter
  • the multimeter is switched to resistance mode
  • the lower computer controls the first branch connected to one of the two main circuits on the test circuit board to be electrically connected to the positive electrode of the test equipment, and the second branch connected to the other main circuit to be electrically connected to the negative electrode of the test equipment, so that the multimeter obtains resistance data;
  • the host computer sends an instruction to read the resistance data of the multimeter, and receives and stores the resistance data.
  • This test method can test the voltage of individual battery cells in the battery module and the NTC resistance and other values, or the voltage of the connector pins to be tested, one by one through the use of a multimeter, and then determine whether the sampling harness in the battery module is connected or disconnected based on the test results.
  • two values can be detected through a multimeter, without repeatedly plugging and unplugging the harness, which can further improve the detection efficiency, protect the harness and connectors, and improve the performance.
  • the step further includes:
  • the host computer determines that the sampling harness of the battery module is qualified according to the voltage data and the resistance data, and uploads the detection data to the general execution platform;
  • the host computer determines that the sampling harness of the battery module is unqualified based on the voltage data and the resistance data, and then marks and uploads the detection data to the general execution platform.
  • the wiring harness detection of the battery module can be realized through the processing of the host computer, so as to quickly discover the defects of the battery module and avoid rework. At the same time, it can distinguish different test results, thereby providing traceable data for subsequent processing.
  • the test system further comprises a test frame and a reading mechanism, wherein the test frame is formed with a test channel;
  • the step further includes:
  • the host computer After the host computer detects that the test channel enters the battery module, it sends an instruction to read the barcode of the battery module to the reading mechanism;
  • the reading mechanism reads the barcode of the battery module and sends the barcode information to the host computer;
  • the host computer calls the corresponding detection formula according to the barcode information and triggers the detection mechanism.
  • the detection system further includes an image acquisition device, and after the host computer detects that the test channel enters the battery module, before sending an instruction to read the barcode of the battery module to the reading mechanism, it also includes:
  • the host computer sends an image acquisition instruction to the image acquisition device
  • the image acquisition device acquires image data of the battery module and sends it to the host computer;
  • the host computer receives and stores the image data.
  • the image acquisition device can collect and store the overall condition of the battery module and the connection condition of the battery cells, thereby providing a traceability basis for subsequent performance analysis.
  • test method for a test system, the test system comprising a test circuit board, a test device, a host computer and a slave computer, the test method comprising the steps of:
  • the method is that the upper computer sends a test instruction to the lower computer, and the lower computer can control the control switch that needs to be turned on, so that the first branch of a main circuit is electrically connected to the positive pole of the test equipment, and the second branch of the other main circuit is electrically connected to the negative pole of the test equipment.
  • the test equipment can detect the parameter information of the battery cells in the battery module.
  • the above-mentioned two main circuits can be selected from two adjacent ones, or the corresponding two main circuits can be selected according to the connector pins on the battery module wiring harness board.
  • the parameter information of multiple battery cells can be detected in sequence.
  • the method of the test system in this application can realize the sequential detection of the parameters of multiple battery cells in the battery module, without the need for manual repeated plugging and unplugging of wiring, thereby improving the detection efficiency and the detection accuracy.
  • the test device includes a multimeter, which has a voltage mode and a resistance mode and is electrically connected to the lower computer.
  • the parameter information is voltage data; after sending an instruction to read the parameter information of the test device and receiving and storing the parameter information, the method further includes:
  • An instruction to read resistance data of a multimeter is sent, and the resistance data is received and stored.
  • This test method can test the voltage of individual battery cells in the battery module and the NTC resistance and other values, or the voltage of the connector pins to be tested, one by one through the use of a multimeter, and then determine whether the sampling harness in the battery module is connected or disconnected based on the test results.
  • two values can be detected through a multimeter, without repeatedly plugging and unplugging the harness, which can further improve the detection efficiency, protect the harness and connectors, and improve the performance.
  • the method after sending an instruction to read resistance data of a multimeter and receiving and storing the resistance data, the method further includes:
  • the detection data is uploaded to the general execution platform
  • the detection data is marked and uploaded to the general execution platform.
  • the wiring harness detection of the battery module can be realized through the processing of the host computer, so as to quickly discover the defects of the battery module and avoid rework. At the same time, it can distinguish different test results, thereby providing traceable data for subsequent processing.
  • the test system further includes a test frame and a reading mechanism, the test frame forms a test channel, and before the step of sending the first test instruction to the lower computer, the test system further includes the following steps:
  • the barcode information is obtained, and a corresponding detection formula is called according to the barcode information to trigger a detection mechanism.
  • the detection system further includes an image acquisition device, after detecting the step of the test channel entering the battery module, sending an instruction to read the barcode of the battery module to the reading mechanism, and before the step of reading the barcode of the battery module, further includes:
  • the image data of the battery module captured by the image acquisition device is acquired and stored.
  • the image acquisition device can collect and store the overall condition of the battery module and the connection condition of the battery cells, thereby providing a traceability basis for subsequent performance analysis.
  • FIG1 is a schematic diagram of the structure of the test system of the present application.
  • FIG2 is a schematic structural diagram of an embodiment of a test circuit board in a test system of the present application
  • FIG3 is a schematic diagram of the connection structure between the multimeter and the battery module in the test system of the present application.
  • FIG4 is a flow chart of a first embodiment of a testing method of the testing system of the present application.
  • FIG5 is a flow chart of a second embodiment of a testing method of the testing system of the present application.
  • FIG6 is a flow chart of a third embodiment of a testing method of the testing system of the present application.
  • FIG7 is a flow chart of a fourth embodiment of a testing method of the testing system of the present application.
  • FIG8 is a flow chart of a fifth embodiment of a testing method of the testing system of the present application.
  • FIG9 is a flow chart of a sixth embodiment of a testing method of a testing system of the present application.
  • FIG10 is a flow chart of a seventh embodiment of a testing method of a testing system of the present application.
  • FIG11 is a flow chart of an eighth embodiment of a testing method of a testing system of the present application.
  • FIG. 12 is a flow chart of a ninth embodiment of a testing method of the testing system of the present application.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • fixation can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined.
  • Batteries mentioned in this field can be divided into disposable batteries and rechargeable batteries according to whether they are rechargeable.
  • Common types of rechargeable batteries currently include: lead-acid batteries, nickel-metal hydride batteries and lithium-ion batteries.
  • Lithium-ion batteries are currently widely used in pure electric vehicles and hybrid vehicles. The capacity of lithium-ion batteries used for this purpose is relatively low, but they have larger output and charging current, and also have a longer service life, but the cost is higher.
  • the battery described in the embodiments of the present application refers to a rechargeable battery.
  • the embodiments disclosed in the present application will be described below mainly by taking a lithium-ion battery as an example. It should be understood that the embodiments disclosed in the present application are applicable to any other appropriate type of rechargeable battery.
  • the battery mentioned in the embodiments disclosed in the present application can be directly or indirectly applied to an appropriate device to power the device.
  • the battery mentioned in the embodiments disclosed in this application refers to a single physical module including one or more battery cells to provide a predetermined voltage and capacity.
  • a battery cell is a basic unit in a battery, which includes a positive electrode sheet, a negative electrode sheet, an electrolyte, and a separator.
  • Lithium-ion battery cells mainly rely on the movement of lithium ions between the positive electrode sheet and the negative electrode sheet to work. Generally, they can be divided into cylindrical battery cells, rectangular battery cells, and soft-pack battery cells according to the packaging method. The following will mainly focus on rectangular battery cells. It should be understood that the embodiments described below are also applicable to cylindrical battery cells or soft-pack battery cells in some aspects.
  • the development of battery technology must consider many design factors at the same time, such as energy density, cycle life, discharge capacity, charge and discharge rate and other performance parameters.
  • the battery In the battery manufacturing process, the battery often needs to go through many processes and stations to complete production, measurement, and make a complete battery.
  • the positive electrode sheet, negative electrode sheet, electrolyte and diaphragm are formed into the form of a battery cell, and then the shelling, welding, formation and other processes are carried out to form a battery cell.
  • the battery module in the automotive power battery system is composed of battery cells connected in series and parallel.
  • the sampling harness of the module is used to collect the voltage of each battery cell of the module, the total open circuit voltage after series and parallel connection, and the temperature of the temperature monitoring point, and output it through a standard connector. Due to poor welding, poor terminal crimping, external force breaking and other reasons, the module harness has poor contact or is broken, resulting in the loss of voltage and temperature points, causing the car to be unable to drive on the road or causing driving failures. Therefore, the module harness continuity test is very important in the production process of battery modules (battery packs).
  • the module wiring harness continuity test method mainly adopts manual wiring and handheld multimeter testing. For multiple battery cells, frequent wiring and wire replacement are required, and the test speed is slow and the efficiency is low. Due to the influence of human factors, it is easy to miss the test, and the test accuracy is low, and the connection quality problem between the sampling harness board and the battery module cannot be accurately detected.
  • the present application improves the test system structure.
  • a test circuit board in the test system that can simultaneously test the voltages of multiple battery cells in the battery module, there is no need to repeatedly plug and unplug the wires for multiple battery cells in the same module, thereby improving the detection efficiency and detection accuracy.
  • a test system 100 includes a test circuit board 10, a test device, a lower computer and a host computer, wherein the test device is used to test parameter information of multiple battery cells of a battery module; the test circuit board 10 is provided with a test circuit 11, and the test circuit 11 includes a plurality of bus lines 111 arranged side by side, one end of each bus line 111 is used to be connected to the positive electrode or the negative electrode of each battery cell of the battery module, and the other end of each bus line 111 is connected to a first branch and a second branch; each first branch is provided with a control switch 115, and each second branch is provided with a control switch 115;
  • the lower computer is electrically connected to the control switch 115 to control the first branch connected to one of the two main lines 111 to be electrically conductive with the positive pole of the test equipment, and the second branch connected to the other to be electrically conductive with the negative pole of the test equipment;
  • the upper computer is communicatively connected to both the test equipment and the lower computer to control the operation of the lower computer and read the parameter information of the test equipment.
  • the test circuit board 10 is a carrier of the test circuit 11, which has a plurality of main lines 111.
  • One end of the plurality of main lines 111 can be arranged side by side on one side of the board width of the test circuit board 10, so as to facilitate the connection of the wiring harness of the battery module.
  • the other end of the main line 111 is divided into a first branch and a second branch, and the plurality of first branches and second branches are arranged on the other side of the board width of the test circuit board 10, so that the plurality of main lines 111 are arranged side by side at intervals in the length direction of the board, and the plurality of first branches and second branches are also arranged side by side at intervals in the length direction of the board, and can be arranged as pin-type connectors, which further facilitates the docking of the wiring harness.
  • a control switch 115 is arranged on each first branch and each second branch, and the opening and closing of the control switch 115 affects the on-off of the main line 111, so as to detect different battery cells.
  • the positive and negative electrodes of the test equipment are electrically connected to the positive and negative electrodes of the battery cells of the battery module through the test circuit board 10, and are used to detect and display the parameter information of the battery cells.
  • the parameter information may be voltage data or resistance data, etc.
  • the type of the test equipment may be a multimeter, a voltmeter or an oscilloscope, etc., which is not limited here.
  • the lower computer is a programmable logic controller (PLC).
  • PLC programmable logic controller
  • the test circuit 11 is electrically connected to the lower computer.
  • the two can be directly connected by line or wirelessly. It only needs to be able to control the opening and closing of the control switch 115.
  • the upper computer is a carrier of software that can send instructions to the lower computer and read and process various data. For example, as the main controller, it can send test instructions to the lower computer, and finally obtain the test results, analyze and process them, and determine whether the wiring harness is on or off.
  • each main line 111 in the above-mentioned test system 100 is connected to the positive electrode of each battery cell of the battery module, and the other end is connected to the test equipment through the branch line 113.
  • the upper computer sends a test instruction to the lower computer, and the lower computer can control the control switch 115 that needs to be turned on, so that the first branch of a main line 111 is electrically connected to the positive electrode of the test equipment, and the second branch of another main line 111 is electrically connected to the negative electrode of the test equipment. In this way, the test equipment can detect the parameter information of the battery cell of the battery module.
  • the above-mentioned two main lines 111 can select two adjacent ones, or select the corresponding two main lines 111 according to the connector pin definition on the battery module wiring harness board. Then, the first branch of one of the other two main lines 111 is controlled to be electrically connected to the positive electrode of the test equipment, and the second branch of the other is electrically connected to the negative electrode of the test equipment, so as to detect the parameter information of another battery cell, and so on. Without the need for the test equipment and the battery module to repeatedly plug and unplug the line, the voltage detection of multiple battery cells in the battery module can be realized.
  • the host computer in the test system 100 can obtain the parameter information of the battery cell detected by the test equipment, and process and analyze it, and then obtain the connection and disconnection status of the wiring harness.
  • the testing system 100 in the present application can realize sequential testing of multiple battery cells in a battery module without the need for manual repeated plugging and unplugging of wiring, thereby improving testing efficiency and improving testing accuracy.
  • first branches are connected at one end away from the main line 111 to form a first connection end 112
  • multiple second branches are connected at one end away from the main line 111 to form a second connection end 114.
  • One of the first connection end 112 and the second connection end 114 is electrically connected to the positive pole of the test equipment, and the other is electrically connected to the negative pole of the test equipment.
  • each main line 111 branches out into a first branch and a second branch.
  • the first branch is extended along the extension direction of the main line 111
  • the second branch is bent and extended along the extension direction of the main line 111.
  • multiple first branches of multiple main lines 111 are arranged side by side at intervals, and finally gathered and connected to form a first connection end 112.
  • Multiple second branches of multiple main lines 111 are arranged side by side at intervals, and finally gathered and connected to form a second connection end 114.
  • the first connection end 112 is directly connected to one of the positive and negative poles of the test equipment, and the second connection end 114 is directly connected to the other of the positive and negative poles of the test equipment.
  • the lower computer only needs to control the opening and closing of the control switch 115.
  • the first connection end 112 and the second connection end 114 can eliminate the need for repeated plugging and unplugging of the multiple first branches and the multiple second branches with the test equipment, further reducing the operating procedures, improving the detection efficiency, protecting the line and reducing the chance of damage.
  • At least two first connection ends 112 are provided.
  • the at least two first connection ends 112 are arranged in parallel.
  • At least two second connection ends 114 are provided, and at least two second connection ends 114 are arranged in parallel.
  • At least two first connection terminals 112 may be provided, for example, two or three or more.
  • two first connection terminals 112 are provided, so that when a fault occurs at the connection between one of the first connection terminals 112 and the test equipment, the test can be implemented by switching the other first connection terminal 112, which effectively saves costs and improves the performance of the test circuit board 10.
  • At least two second connection terminals 114 may be provided. When one of the second connection terminals 114 fails, the other second connection terminals 114 may be switched to further improve the performance of the test circuit board 10 .
  • the test circuit 11 further includes a plurality of fuses 117 .
  • Each fuse 117 is disposed on a main circuit 111 .
  • the fuse 117 is arranged on the main line 111, which means that the fuse 117 is connected in series on the main line 111, so that it can be automatically blown when a short circuit or fault occurs in the line, thereby protecting the equipment.
  • the connection between the main line 111 and the fuse 117 can be plug-in type, for example, the fuse 117 has a fuse 117 seat, and a part of the line of the main line 111 is inserted into the fuse 117 seat to achieve wiring.
  • a threaded connection can also be selected, which will not be repeated here.
  • a fuse 117 is configured on each main circuit 111 to effectively prevent the battery module from being short-circuited due to damage to the battery module connector or the intermediate connecting plug, thereby damaging the equipment, thereby improving the safe use performance of the test circuit 11.
  • the testing device is a multimeter, which includes a voltage mode and a resistance mode.
  • the multimeter is electrically connected to a host computer or a slave computer to switch between the voltage mode and the resistance mode.
  • the multimeter can be a digital multimeter 20 with six and a half or seven and a half digits of precision, so as to have a higher precision and can significantly improve the detection accuracy to improve the timeliness of the wiring harness connection and disconnection.
  • the test equipment can be selected as a multimeter, which can have multiple operation modes and multiple gears, such as voltage or resistance, etc.
  • the host computer or the slave computer controls the multimeter to switch to the resistance mode, it can also realize the detection of thermistors at multiple battery cells, and then obtain the temperature value corresponding to the resistance; or the resistance value of the battery cell.
  • the use of a multimeter can further improve the detection efficiency and simplify the structure.
  • the test system 100 also includes a test adapter harness, one end of the multiple bus lines 111 is connected to an aviation plug, and the two ends of the test adapter harness are respectively plugged into the aviation plug and the plug-in end of the battery module.
  • the transfer test harness is a line segment that can be connected by plugging, which is convenient for plugging and unplugging, improving efficiency and convenience.
  • One end of the transfer test harness is electrically connected to the test circuit board 10 through an aviation plug.
  • the number of pins of the aviation plug and the number of aviation plugs can be set as needed to correspond to the number of multiple bus lines 111 and the number of battery cells in the battery module. For example, two sets of 64-pin aviation plugs can be selected.
  • the setting of the aviation plug can facilitate the replacement and connection of the transfer test harness.
  • the length of the transfer test harness should not be too long to save costs.
  • a harness channel can also be set, so that the transfer test harness is connected to the connector of the battery module through the harness channel, effectively reducing the chance of damage.
  • the test system 100 further includes a reading mechanism, which is electrically connected to a host computer and is used to read barcode information of the battery module and send it to the host computer.
  • the host computer calls a test plan based on the barcode information.
  • the reading mechanism can be a wireless radio frequency automatic identification device or a barcode scanner, which is not limited here. Due to the different structures and types of battery modules, a reading mechanism is set to read the barcode information of the battery module, so as to obtain the corresponding type or structure of the battery module, so that the host computer can select the corresponding test plan according to the obtained type or structure of the battery module, thereby improving applicability and detection accuracy.
  • the test plan is based on the test requirements of the battery product (the requirements are generally single cell voltage test, single cell voltage difference test, NTC resistance test) and connector pin definition. First, edit the test sequence, multimeter measurement mode (voltage mode or resistance mode), and the number of the relay that needs to be closed in the host computer software.
  • the test system 100 also includes a test frame 30.
  • the test frame 30 includes a plurality of horizontal beams 31 and a plurality of vertical beams 32 connected vertically and horizontally.
  • the plurality of horizontal beams 31 and the vertical beams 32 enclose a test channel 30a.
  • the test channel 30a is for the battery module to pass through, and the reading mechanism is disposed in the test channel 30a.
  • the test frame 30 can be a frame structure, which includes a plurality of cross beams 31 and a plurality of vertical beams 32.
  • the materials of the cross beams 31 and the vertical beams 32 can be profiles or wood, etc., which are convenient for processing and have good structural stability.
  • the connection method of the cross beams 31 and the vertical beams 32 can be a fixed connection, such as bonding or welding, etc., or a detachable connection, such as mortise and tenon connection, plug-in connection or threaded connection, etc., which is not limited here.
  • the test frame 30 includes four vertical beams 32 and a plurality of cross beams 31 connected between two vertical beams 32 to form a square frame structure.
  • a test channel 30a is formed in the middle and lower part of the test frame 30, so that it can be adapted to other production lines, and the battery module is directly passed through the test channel 30a through the conveying structure to form a complete battery module detection process.
  • three or more vertical beams 32 can also be set.
  • the reading mechanism can be set on one of the cross beams 31, or on one of the vertical beams 32, which is not limited here, and only needs to correspond to the barcode of the battery module.
  • the test frame 30 can provide a detection environment for the battery module, prevent external interference, and effectively improve the protection performance; and facilitate the assembly and fixation of various components, such as the reading mechanism, provide support, and adapt to the production line, thereby improving the overall detection efficiency of the battery module.
  • the test frame 30 further includes feet 33, and four feet 33 are respectively installed at the bottom ends of the vertical beams 32, so that the vertical beams 32 and the horizontal beams 31 can be leveled, and the support stability can be improved at the same time.
  • the test frame 30 can also include a protective plate, which is installed at the top of the vertical beam 32 and the connection between the horizontal beam 31 at the top, and can also be installed on the side of the vertical beam 32, so as to protect the test channel 30a and prevent interference from the external environment.
  • the test system 100 also includes an image acquisition device 40.
  • the image acquisition device 40 is arranged on a beam 31 and is electrically connected to the host computer to capture and sample the battery module in the test channel 30a and send it to the host computer.
  • the image acquisition device 40 can be a line scan camera with high resolution and good imaging quality. In other examples, the image acquisition device 40 can also be a 3D camera, a surface camera or a scanner, etc., which is not limited here.
  • the image acquisition device 40 is installed on a crossbeam 31, which is close to the top of the vertical beam 32, and the projection on the horizontal plane is located at the center or one end of the test channel 30a, so that the overall structure of the battery module can be easily collected comprehensively.
  • the image acquisition device 40 can acquire the overall condition of the battery module and the connection condition of the battery cells, and send the image to the host computer, which stores the image, thereby providing a traceability basis for subsequent performance analysis.
  • the testing system 100 further includes a light source 50 , which is disposed on another beam 31 and located on one side of the image acquisition device 40 ;
  • the test system 100 further includes a safety grating 60, which is disposed between two oppositely disposed vertical beams 32 and is electrically connected to a host computer to block the test channel 30a.
  • the light source 50 is a bar light source 50, which has a wider light emission range and can provide a better fill light effect for the image acquisition device 40.
  • the light source 50 can also be a dot matrix lamp bead structure.
  • the light source 50 is arranged on one side of the image acquisition device 40 on the horizontal plane and emits light toward the battery module.
  • the light source 50 can be provided to provide supplementary light for the battery module to be inspected, thereby improving the image acquisition effect.
  • a safety grating 60 is provided on the test frame 30 with or without the light source 50.
  • the safety grating 60 is also a photoelectric safety protection device, which may include a transmitting end and a receiving end, which are respectively installed on two vertical beams 32 arranged opposite to each other.
  • the transmitting end emits light, and the receiving end receives the emitted light.
  • the receiving end When there is light, it means there is no obstacle; when the receiving end cannot receive the emitted light, it means that an obstacle extends into the test channel 30a, which will affect the detection, so that a signal is sent to the upper computer, and the upper computer can send a pause instruction to the lower computer, so that the lower computer controls the detection equipment to stop detection.
  • the provision of the safety grating 60 can further enhance the protection and improve the detection effect.
  • the test system 100 also includes an integrated cabinet 70.
  • the integrated cabinet 70 is formed with a accommodating cavity and is located on one side of the test frame 30.
  • the test circuit board 10, the test equipment and the lower computer are all arranged in the accommodating cavity, and the aviation plug is at least partially exposed in the integrated cabinet 70.
  • the integrated cabinet 70 can be arranged in a cubic structure, which is convenient to be placed on the ground to form a stable support structure.
  • the shape of the integrated cabinet 70 can also be a cylinder or other shapes.
  • the material of the integrated cabinet 70 can be metal, for example, stainless steel or aluminum alloy, etc., with high structural strength and durability.
  • the surface of the integrated cabinet 70 can be treated to remove static electricity to prevent the internal components from being affected.
  • the integrated cabinet 70 includes a cabinet body and a cabinet door, the cabinet body forms a receiving cavity with an opening, and the cabinet door can be movably connected to the cabinet body, so that the opening of the receiving cavity can be closed or opened, which is convenient for operators to perform maintenance and installation.
  • the test circuit board 10, the test equipment and the lower computer are all located in the receiving cavity, which can avoid interference and improve protection.
  • the fixed installation of the test equipment can also improve the detection accuracy.
  • a visual window can be set in the cabinet body as needed, so that the dial of the test equipment can be observed.
  • Other auxiliary components can also be set in the receiving cavity, such as a power supply or a heat sink, which are not limited here.
  • a wiring harness sleeve can be further provided between the integrated cabinet 70 and the test frame 30.
  • the wiring harness sleeve forms a wiring harness channel, and the transfer test harness can pass through the wiring harness sleeve to be respectively connected to the battery module and the aviation plug, thereby improving the protection of the transfer test harness and extending its service life.
  • the various components are integrated into the integrated cabinet 70, which can effectively save floor space and improve the flexibility of equipment installation.
  • the integrated cabinet 70 can be independently set up and placed on one side of the test frame 30, that is, outside the production line, which improves the maintainability of the equipment.
  • the test system 100 also includes a warning member 81.
  • the warning member 81 is installed on the test frame 30 and/or the integrated cabinet 70 and is electrically connected to the host computer to reflect the operating status of the test system 100.
  • the warning element 81 can be a lamp or an alarm.
  • the warning element 81 when the warning element 81 is a three-color lamp, it can have four output states of three colors of lights and a buzzer.
  • the test system 100 When the test system 100 operates normally, it can output a green light; when the test system 100 is waiting for material, it can output a yellow light; when the test system 100 crashes or fails, it can output a red light and emit a buzzer to provide a reminder.
  • the warning element 81 can reflect the operating status of the test system 100 in real time, so that timely processing and maintenance can be carried out, avoiding rework and inspection of too many battery modules, and improving inspection efficiency.
  • the test system 100 further includes a human-machine interaction device, which is installed on the test frame 30 and electrically connected to a host computer to display detection information or debug the test system 100 .
  • the human-machine interaction device includes a display 91, a keyboard, and a mouse, etc.
  • the display 91 can display the parameter information of the battery cell obtained by the test equipment, so as to provide real-time monitoring for the operator.
  • the keyboard and mouse can also facilitate the operator to debug the parameters of the test system 100 and display the data.
  • the human-machine interaction device can also be a touch screen.
  • the human-computer interaction device allows the operator to monitor the detection data of the test system 100 and adjust the operating parameters of the test system 100 at any time to improve the test performance of the test system 100 .
  • a vertical beam 32 is rotatably connected to a mounting frame 93 , and the human-machine interaction device is mounted on the mounting frame 93 so as to be rotatably arranged on a horizontal plane relative to the test frame 30 .
  • one side of the mounting frame 93 and one of the vertical beams 32 are provided with a rotating shaft, and the other side is provided with an axial hole.
  • the mounting frame 93 can be rotated relative to the vertical beam 32 by the cooperation of the rotating shaft and the axial hole.
  • the rotation connection can also be achieved by other components, such as hinges.
  • a locking piece can be provided to lock the rotation of the mounting frame 93 and the vertical beam 32, so as to limit it to a certain rotation angle. When adjustment is required, the locking piece can be opened.
  • a damping member is provided on the rotation structure of the mounting frame 93 so that the mounting frame 93 can rotate in a damped manner so that it can be limited at any position.
  • the mounting frame 93 includes a supporting portion and a clamping portion, the supporting portion is used to place a keyboard and a mouse, and the clamping portion is formed with a mounting groove, and the display component can be installed in the mounting groove.
  • the vertical beam 32 is rotatably connected to the mounting frame 93, so that the mounting frame 93 can be rotatably arranged in a horizontal plane, thereby adjusting the direction of the human-machine interaction device, further facilitating the viewing and operation of the operator.
  • the test system 100 further includes a storage member 82 , which is disposed on a horizontal beam 31 or a vertical beam 32 to store the adapter test harness.
  • the storage member 82 is a hook structure, which has a fixing portion and a hook connected to the fixing portion, the fixing portion is used to be detachably connected to the vertical beam 32, and the hook is used to hang the adapter test harness.
  • the number of hooks can be two to prevent the adapter test harness from being excessively bent to extend its service life.
  • the storage member 82 can also be a box structure, etc. After the test is completed, the end of the adapter test harness connected to the battery module can be hung on the storage member 82, or placed in the storage member 82.
  • the fixing portion can also be installed on a beam 31, and the height of the beam 31 can be located in the middle and lower part of the vertical beam 32, which is convenient for operation and storage.
  • the arrangement of the storage member 82 can facilitate the storage of the transfer test harness, making the test system 100 more tidy and preventing the transfer test harness from being damaged.
  • the test system 100 further includes a starter 83, which is disposed on the periphery of the test frame 30, and the starter 83 includes two starter parts, which are electrically connected to the host computer to start the test system 100;
  • test system 100 further includes a card reader 94 , which is installed on the test frame 30 and electrically connected to the host computer.
  • the starter 83 is used to start the test system 100, and can send a start instruction to the host computer, so that the host computer enters the test state.
  • the starter 83 includes two start parts, and the two start parts can be pressed at the same time to realize the sending of the start instruction, thereby triggering the test state of the host computer.
  • the starter 83 is located at a crossbeam 31, and the crossbeam 31 is close to the middle and lower part of the vertical beam 32, and is at a height that an adult can touch with his hands when standing, which is convenient for the operator to operate. By controlling the two start parts with both hands at the same time, the operator's hands can be located outside the test channel 30a, thereby avoiding interference with the test and improving protection.
  • a card reader 94 can be set on the support part or the mounting part of the mounting frame 93.
  • the card reader 94 can be used by the operator to swipe the card and is electrically connected to the host computer. After the operator swipes the card, the information on the card can be sent to the host computer for identity confirmation. If it meets the requirements, the host computer sends instructions for subsequent parameter adjustment and data display.
  • the setting of the card reader 94 improves the security level of the test system 100. Only after identity authentication can the test system 100 be debugged and controlled.
  • the present application further proposes a test method for a test system, the test system comprising a test circuit board, a test device, a host computer and a slave computer, and the test method comprises the following steps:
  • Step S1 The upper computer sends a test instruction to the lower computer
  • Step S2 The lower computer receives the test instruction and controls the first branch connected to one of the two main circuits on the test circuit board to be electrically connected to the positive electrode of the test equipment, and the second branch connected to the other main circuit to be electrically connected to the negative electrode of the test equipment;
  • Step S3 The testing equipment detects the parameter information of the battery cell
  • Step S4 The host computer sends an instruction to read the parameter information of the test equipment, and receives and stores the parameter information.
  • step S1 before the host computer sends the test instruction to the lower computer, the test system can be started by manually triggering the starter.
  • step 2 after receiving the test instruction, the lower computer can control the control switches on the first branch and the second branch one by one, so that one main circuit is connected to the positive pole of the test equipment, and the other main circuit is connected to the negative pole of the test equipment, and the parameter information of the battery cells to be tested is tested one by one until the battery cells to be tested are all tested.
  • the above two main circuits 111 can select two adjacent ones, or select the corresponding two main circuits 111 according to the connector pin definition on the battery module wiring harness board.
  • the test equipment here can be a multimeter, a voltmeter or an oscilloscope, etc.
  • the parameter information here can be voltage data, resistance data, etc., which can be selected as needed.
  • the test equipment can obtain the parameter information of the battery cell while the test circuit is turned on, and the parameter information can be stored or sent directly to the host computer.
  • the test equipment when the host computer sends an instruction to read parameter information, the test equipment then sends the parameter information to the host computer, which receives and stores the information and can also analyze the information to determine whether the detection harness of the battery cell is connected or disconnected.
  • the method is that the upper computer sends a test instruction to the lower computer, and the lower computer can control the control switch that needs to be turned on, so that the first branch of a main circuit is electrically connected to the positive pole of the test equipment, and the second branch of another main circuit is electrically connected to the negative pole of the test equipment.
  • the test equipment can detect the parameter information of the battery cells of the battery module, for example, voltage information, and so on, so that the parameter information of the battery cells to be tested can be detected in sequence.
  • the method of the test system in this application can realize the sequential detection of multiple battery cells in the battery module without manual repeated plugging and unplugging of wiring, thereby improving the detection efficiency and detection accuracy.
  • the test equipment includes a multimeter, the multimeter has a voltage mode and a resistance mode, and is electrically connected to a lower computer, and the parameter information is voltage data;
  • the host computer After the host computer sends an instruction to read the parameter information of the test device and receives the step of storing the parameter information, it includes:
  • Step S5 The lower computer sends a mode switching instruction to the multimeter
  • Step S6 the multimeter is switched to resistance mode
  • Step S7 the lower computer controls the first branch connected to one of the two main circuits on the test circuit board to be electrically connected to the positive electrode of the test equipment, and the second branch connected to the other main circuit to be electrically connected to the negative electrode of the test equipment, so that the multimeter obtains resistance data;
  • Step S8 the host computer sends an instruction to read the resistance data of the multimeter, and receives and stores the resistance data.
  • step S5 sends the switching mode to the multimeter through the lower computer, which can make the signal transmission faster and improve the control efficiency, so that the switching efficiency of the multimeter is higher.
  • the upper computer can also be directly connected to the multimeter for communication, and send a switching mode instruction to the multimeter.
  • the lower computer controls the control switches corresponding to the two main circuits to be closed, just like the test voltage data, so as to conduct with the multimeter, and conduct the NTC resistance of multiple battery cells one by one, until the battery cells to be detected are all completed.
  • the above two main circuits 111 can select two adjacent ones, or select the corresponding two main circuits 111 according to the connector pin definition on the battery module wiring harness board.
  • the test equipment When the test circuit is turned on, the test equipment can obtain the resistance data of the battery cell, and the resistance data can be directly stored.
  • the upper computer sends an instruction to read the parameter information
  • the test equipment sends the parameter information to the upper computer, and the upper computer stores it after receiving it, and can also analyze it at the same time to determine whether the detection harness of the battery cell is on or off.
  • the multimeter directly sends the resistance data to the host computer while obtaining it.
  • This test method can test the voltage and resistance of individual battery cells in the battery module one by one through the use of a multimeter, and then calculate the voltage difference and the temperature corresponding to the resistance, so as to judge whether the sampling harness in the battery module is on or off based on the above results, thereby improving the accuracy of the detection.
  • two values can be detected through a multimeter, without repeatedly plugging and unplugging the harness, which can further improve the detection efficiency, and protect the harness and connectors to improve the performance.
  • the method further includes:
  • Step S91 The host computer determines whether the sampling harness of the battery module is qualified according to the voltage data and the resistance data, and uploads the detection data to the general execution platform;
  • step S92 the host computer determines that the sampling harness of the battery module is unqualified based on the voltage data and the resistance data, and then marks and uploads the detection data to the general execution platform.
  • step S91 the host computer can calculate the voltage difference of a single battery cell based on the voltage data, and obtain the temperature value corresponding to the NTC resistor based on the resistance data.
  • the actual voltage difference and temperature values detected are compared with the standard voltage difference and temperature values. If they are consistent, it can be determined that the sampling harness at a certain position of the battery module is qualified, and the voltage, voltage difference, NTC temperature and other data of the single battery cell are stored locally and uploaded directly to the general execution platform.
  • step S92 the judgment basis is the same as above. If the comparison results are inconsistent, it means that the sampling harness is faulty or disconnected. At this time, the obtained data needs to be marked and then uploaded to the general execution platform.
  • the sampling harness of the battery module can be detected through the processing of the host computer to quickly discover the defects of the battery module and avoid rework. At the same time, different test results can be distinguished, thereby providing traceable data for subsequent processing.
  • the test system further includes a test frame and a reading mechanism, and the test frame is formed with a test channel;
  • step S1 Before the step S1 in which the upper computer sends the test instruction to the lower computer, the following steps are also included:
  • Step S01 After the host computer detects that the test channel enters the battery module, it sends a command to read the barcode of the battery module to the reading mechanism;
  • Step S02 The reading mechanism reads the barcode of the battery module and sends the barcode information to the host computer;
  • Step S03 The host computer calls the corresponding detection formula according to the barcode information and triggers the detection mechanism.
  • the test frame can provide a testing environment for the battery module, prevent external interference, and effectively improve the protection performance; it is also convenient to assemble and fix various components, such as the reading mechanism, provide support, and adapt to the production line to improve the overall detection efficiency of the battery module.
  • the reading mechanism can be a wireless radio frequency automatic identification device or a barcode scanner, which is not limited here. Due to the different structures and types of battery modules, a reading mechanism is set to read the barcode information of the battery module, so as to obtain the corresponding type or structure of the battery module, so as to facilitate the host computer to select the corresponding test scheme according to the type or structure of the acquired battery module. Therefore, before the host computer sends the test instruction, in step S01, the test channel is first detected to determine whether there is a battery module that needs to be tested entering. If so, the barcode information needs to be read first. In step S02, after the reading mechanism drives the barcode, the obtained barcode information is sent to the host computer. Then in step S03, the host computer retrieves the corresponding test scheme and test mechanism according to the barcode information, so that the control of the lower computer is more targeted and accurate.
  • the test plan is based on the test requirements of battery products (generally single cell voltage test, single cell voltage difference test, NTC resistance test) and connector pin definition.
  • the detection system further includes an image acquisition device. After the host computer detects that the test channel enters the battery module, before sending an instruction to read the barcode of the battery module to the reading mechanism in step S01, it also includes:
  • Step S001 The host computer sends an image acquisition instruction to the image acquisition device
  • Step S002 The image acquisition device acquires image data of the battery module and sends it to the host computer;
  • Step S003 The host computer receives and stores the image data.
  • the type of image acquisition device is not limited, and it can be a line scan camera, an area camera, a 3D camera, etc.
  • the image acquisition device can collect the overall condition of the battery module and the connection condition of the battery cell, obtain image data and send it to the host computer; the host computer stores it, thereby providing a traceability basis for subsequent performance analysis.
  • the barcode information of the battery module may be read first, and then the image data may be collected.
  • the present application further proposes a test method for a test system, the test system comprising a test circuit board, a test device, a host computer and a slave computer, and the test method comprises the following steps:
  • Step S10 sending a first test instruction to the lower computer, so that the lower computer controls the first branch connected to one of the two main circuits on the test circuit board to be electrically connected to the positive electrode of the test equipment, and the second branch connected to the other main circuit to be electrically connected to the negative electrode of the test equipment, so that the test equipment detects parameter information of the battery cell;
  • Step S20 Sending an instruction to read parameter information of the test equipment, and receiving and storing the parameter information.
  • step S10 of the test method the method is that the upper computer sends a first test instruction to the lower computer, and the lower computer can control the control switch that needs to be turned on, so that the first branch of a main circuit is electrically connected to the positive electrode of the test equipment, and the second branch of another main circuit is electrically connected to the negative electrode of the test equipment.
  • the test equipment can detect the parameter information of the battery cell of the battery module.
  • the two adjacent main circuits 111 can be selected, or the corresponding two main circuits 111 can be selected according to the connector pin definition on the battery module wiring board.
  • the parameter information of multiple battery cells can be detected in sequence.
  • the parameter information can be voltage data, resistance data or other parameters, etc.
  • the test equipment is selected according to the test of the parameter information, for example, a multimeter, a voltmeter or an oscilloscope.
  • the upper computer will obtain the parameter information, store it, and analyze and process it to determine the on-off status of the sampling harness of the battery module.
  • test system method in the present application can realize sequential testing of multiple battery cells in a battery module without the need for manual repeated plugging and unplugging of wires, thereby improving detection efficiency and detection accuracy.
  • the test device includes a multimeter, the multimeter has a voltage mode and a resistance mode, and is electrically connected to a lower computer; the parameter information is voltage data; after sending an instruction to read the parameter information of the test device and receiving step S20 of storing the parameter information, the method further includes:
  • Step S30 sending a second test instruction to the lower computer, so that the lower computer controls the multimeter to switch to the resistance mode and obtain resistance data;
  • Step S40 sending an instruction to read the resistance data of the multimeter, and receiving and storing the resistance data.
  • the upper computer can also be directly connected to the multimeter and send a switching mode instruction to the multimeter.
  • the lower computer controls the control switches corresponding to the two main lines to be closed, just like the test voltage data, so as to connect with the multimeter, and test multiple NTC resistors one by one until all the battery cells to be detected are completed.
  • the test circuit is turned on, the test equipment can obtain the resistance data of the battery cell, and the resistance data can be directly stored.
  • the test equipment sends the parameter information to the upper computer, and the upper computer stores it after receiving it, and can also analyze it at the same time to determine whether the detection harness of the battery cell is on or off.
  • the multimeter sends the resistance data directly to the upper computer while obtaining the resistance data.
  • This test method can test the voltage of the battery cells and NTC resistance values of the battery modules one by one by using a multimeter, and then judge whether the sampling harness in the battery module is connected or disconnected according to the test results.
  • two values can be detected by a multimeter, without repeatedly plugging and unplugging the harness, simplifying the structure, further improving the detection efficiency, and protecting the harness and connectors to improve the performance.
  • the method after sending an instruction to read resistance data of a multimeter and receiving step S40 of storing resistance data, the method further includes:
  • Step S510 judging whether the sampling harness of the battery module is qualified according to the voltage data and the resistance data, and uploading the detection data to the general execution platform;
  • step S520 if the sampling harness of the battery module is judged to be unqualified according to the voltage data and the resistance data, the detection data is marked and uploaded to the general execution platform.
  • step S510 the host computer can calculate the voltage difference of the battery cell according to the voltage data, and obtain the temperature value corresponding to the NTC resistor according to the resistance data.
  • the actual voltage difference and temperature values detected are compared with the standard voltage difference and temperature values. If they are consistent, it can be judged that the sampling harness at a certain position of the battery module is qualified, and the voltage, voltage difference, NTC temperature and other data of the single battery cell are stored locally, and directly uploaded to the general execution platform.
  • step S520 the judgment basis is the same as above. If the comparison results are inconsistent, it means that the sampling harness is faulty or disconnected. After the obtained data is marked, it is uploaded to the general execution platform.
  • the wiring harness detection of the battery module can be realized through the processing of the host computer, so as to quickly discover the defects of the battery module and avoid rework. At the same time, it can distinguish different test results, thereby providing traceable data for subsequent processing.
  • the test system further includes a test frame and a reading mechanism, the test frame forms a test channel, and before the step of sending the first test instruction to the lower computer, the test system further includes the following steps:
  • Step S11 Detecting that the test channel enters the battery module
  • Step S12 sending a command for reading the barcode of the battery module to the reading mechanism to read the barcode of the battery module;
  • Step S13 Obtain barcode information, and call the corresponding detection formula to trigger the detection mechanism according to the barcode information.
  • the test frame can provide a testing environment for the battery module, prevent external interference, and effectively improve the protection performance; it is also convenient to assemble and fix various components, such as the reading mechanism, provide support, and adapt to the production line to improve the overall detection efficiency of the battery module.
  • the reading mechanism can be a wireless radio frequency automatic identification device or a barcode scanner, which is not limited here. Due to the different structures and types of battery modules, a reading mechanism is set to read the barcode information of the battery module, so as to obtain the corresponding type or structure of the battery module, so as to facilitate the host computer to select the corresponding test scheme according to the type or structure of the acquired battery module. Therefore, before the host computer sends the test instruction, in step S01, the test channel is first detected to determine whether there is a battery module that needs to be tested entering. If so, the barcode information needs to be read first. In step S02, after the reading mechanism drives the barcode, the obtained barcode information is sent to the host computer. Then in step S03, the host computer retrieves the corresponding test scheme and test mechanism according to the barcode information, so that the control of the lower computer is more targeted and accurate.
  • the detection system further includes an image acquisition device, after detecting the step of the test channel entering the battery module, before sending an instruction to read the barcode of the battery module to the reading mechanism, and further includes:
  • Step S111 sending an image acquisition instruction to an image acquisition device
  • Step S112 Acquire and store image data of the battery module captured by the image acquisition device.
  • the image acquisition device can collect and store the overall condition of the battery module and the connection condition of the battery cells, thereby providing a traceability basis for subsequent performance analysis.
  • the type of image acquisition device is not limited, and it can be a line scan camera, an area camera, a 3D camera, etc.
  • the image acquisition device can collect the overall condition of the battery module and the connection condition of the battery cell, obtain image data and send it to the host computer; the host computer stores it, thereby providing a traceability basis for subsequent performance analysis.
  • the barcode information of the battery module may be read first, and then the image data may be collected.
  • the host computer of the test system After detecting the incoming battery modules, the host computer of the test system reads the barcode information of the battery modules on the tray through RFID and sends it to the host computer. The host computer automatically calls the test recipe according to the barcode information and sends the test instructions to the slave computer.
  • the lower computer controls the on and off of the test circuit of the test circuit board.
  • the 64-pin aviation plug with the transfer test harness connected to the battery module is connected to the positive and negative test leads of the multimeter.
  • the upper computer notifies the lower computer to test the voltage of the first battery cell, and sends the required closed control switch (i.e., contacts K1 and K22) to the lower computer.
  • the lower computer closes K1 and K22 to obtain the voltage of the first battery cell, and tests them one by one to obtain the voltage data of multiple battery cells.
  • the high-precision multimeter switches the voltage, resistance mode and gear position through the communication between the upper computer and the multimeter, or the lower computer communicates with the multimeter to realize the control of switching mode and gear position, and the multimeter obtains the resistance data of multiple battery cells in turn.
  • the host computer sends instructions to read the voltage data and resistance data of the digital multimeter, calculate the single-cell voltage difference and the temperature corresponding to the NTC resistance, and store the voltage, voltage difference, NTC temperature and other data of a single battery cell in a specified format in the local hard disk, and upload them to the data traceability system at the same time.
  • the test system of the present application is an automatic test device that can be used for on/off testing of a battery module wiring harness sampling board, and has the advantages of high compatibility, traceability, high test efficiency, high stability, and low cost.
  • the lifting mechanism When a battery module is delivered, the lifting mechanism lifts the battery module off the speed chain.
  • the image acquisition device takes a photo and saves it. The operator installs the test adapter harness and presses the starter.
  • RFID reads the barcode of the battery module.
  • the lower computer obtains the barcode and sends it to the upper computer.
  • the upper computer automatically calls the test recipe according to the barcode information.
  • the test is performed according to the test recipe. After the test is completed, the operator unplugs the test adapter harness, summarizes it, and presses the release button.
  • the battery module flows out of the test system.
  • the first test recipe the test equipment is controlled by the host computer.
  • the upper computer sends all test item instructions to the lower computer at one time according to the recipe content
  • the host computer switches the multimeter mode and range according to the test items, and sends instructions to the slave computer synchronously;
  • the lower computer closes the corresponding control switch according to the instruction content of the first test item, and notifies the upper computer that the closing action has been completed;
  • the host computer reads and saves the test result.
  • the second test recipe the test equipment is controlled by the lower computer.
  • the upper computer sends all test item instructions to the lower computer at one time according to the recipe content
  • the host computer notifies the PLC to start the nth test
  • the lower computer controls the multimeter to switch to the corresponding mode (voltage/resistance) according to the instruction content of the test item, and synchronously closes the control switch of the corresponding test circuit;
  • the lower computer reads the multimeter test data and saves it to the data block specified by the test item.
  • the host computer compares the data in the data block corresponding to the test item, obtains and saves the data, and displays it in the software interface.

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Abstract

本申请涉及电池测试技术领域,特别公开了一种测试系统及其测试方法,测试系统包括测试电路板、测试设备、下位机以及上位机,所述测试电路板设有测试电路,所述测试电路包括多个并排设置的总线路,每一总线路的一端用于与电池模组的每一电池单体的正极或负极连接,每一总线路的另一端连接有第一分支和第二分支;每一第一分支设有一个控制开关,每一第二分支设有一个控制开关;下位机电连接控制开关,以控制其中一总线路中的一者连接的第一分支与测试设备的正极电导通,其中另一总线路连接的第二分支与测试设备的负极电导通;上位机控制下位机的运行和读取测试设备的参数信息。

Description

测试系统及其测试方法 技术领域
本申请涉及电池模组测试技术领域,特别涉及一种测试系统及其测试方法。
背景技术
汽车动力电池系统中的电池模块是由单体电池串并联组成的模组,模组的采样线束用于采集模组的每个单体电池的电压、串并联后的开路总电压、温度监测点的温度,并通过标准接插件输出。若模组的采样线束接触不良或断路,会导致电压和温度点的丢失,并使得汽车无法上路行驶或出现行驶故障。因此,模组线束通断测试在电池模组的生产过程中非常重要。
目前,模组线束通断测试方法主要采用测试设备测试电池单体的电压,测试过程中需要频繁接线,测试速度慢效率低。
发明内容
本申请的主要目的是提供一种测试系统,旨在提高测试效率和测试精度。
为实现上述目的,本申请提出的测试系统包括:
测试电路板,所述测试电路板设有测试电路,所述测试电路包括多个并排设置的总线路,每一所述总线路的一端用于与电池模组的每一电池单体的正极或负极连接,每一所述总线路的另一端连接有第一分支和第二分支;每一所述第一分支设有一个控制开关,每一所述第二分支设有一个所述控制开关;
测试设备,用于测试所述电池模组的多个电池单体的参数信息;
下位机,所述下位机电连接所述控制开关,以控制其中一所述总线路中的一者连接的第一分支与测试设备的正极电导通,其中之另一总线路连接的第二分支与测试设备的负极电导通;以及
上位机,与所述测试设备和下位机均通讯连接,以控制所述下位机的运行和读取所述测试设备的参数信息。
上述的测试系统中每一个总线路的一端连接至电池模组的每一个电池单体的正极,另一端通过分支线路连接到测试设备。上位机发送测试指令至下位机,下位机可以对需要导通的控制开关进行控制,使得一总线路的第一分支与测试设备的正极电导通,另一总线路的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组内的电池单体进行参数信息的检测。上述两个总线路可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚定义去选择对应的两个总线路。然后,再根据测试指令,控制另两个总线路的一者的第一分支与测试设备的正极电导通,另一者的第二分支与测试设备的负极电导通,从而检测其他电池单体的参数信息,例如,电压或电阻等,如此往复,无需测试设备与电池模组进行线路的反复插拔,即可实现对电池模组内的多个电池单体的参数信息检测。该测试系统中的上位机可以获取测试设备的检测数据,并对此进行处理分析,继而可获得线束通断的情况。
因此,本申请中的测试系统可以实现对电池模组中的多个电池单体的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
在本申请的一实施例中,多个所述第一分支远离所述总线路的一端连接形成第一连接端,多个所述第二分支远离所述总线路的一端连接形成第二连接端,所述第一连接端和第二连接端中的一者与所述测试设备的正极电连接,另一者与所述测试设备的负极电连接。
此处,设置第一连接端和第二连接端可以使得多个第一分支和多个第二分支无需与测试设备进行反复插拔,进一步减少操作工序,提升检测效率,并对线路进行保护,降低损坏几率。
在本申请的一实施例中,所述第一连接端设有至少两个,至少两个所述第一连接端并联设置;
且/或,所述第二连接端设有至少两个,至少两个所述第二连接端并联设置。
此处,设置至少两个第一连接端和两个第二连接端,可以在其中一个有故障时利用其他作为备选,提升测试电路的使用性能。
在本申请的一实施例中,所述测试电路还包括多个保险丝,每一所述保险丝设于一所述总线路上。
每一总线路上都配置保险丝,可有效防止由于电池模组的插接件或中间连接的插头损坏导致的电池模组短路,进而损坏设备的情况。
在本申请的一实施例中,所述测试设备为万用表,所述万用表包括电压模式和电阻模式,所述万用表与所述上位机或下位机电连接,以在所述电压模式和电阻模式中切换。
此处,测试设备可选为万用表,其可以具有多种操作模式以及多级档位,当上位机或是下位机控制万用表切换至电阻模式时,也可以实现多个电池单体处的热敏电阻的检测,继而获得电阻对应的温度值。通过万用表的使用能够进一步提升检测效率,并简化结构。
在本申请的一实施例中,所述测试系统还包括转接测试线束,多个所述总线路的一端连接有航空插头,所述转接测试线束的两端分别插接于所述航空插头和所述电池模组的插接端。
此处,通过转接测试线束和航空插头的设置,从而在检测时仅需要将转接测试线束与电池模组的接插件进行连接,无需反复插拔测试电路的总线路的接口,从而降低测试线路板和航空插头的磨损速度,达到维护方便和降本的目的。
在本申请的一实施例中,所述测试系统还包括读取机构,所述读取机构与所述上位机电连接,所述读取机构用于读取所述电池模组的条码信息,并发送至所述上位机,所述上位机根据所述条码信息调用测试方案。
此处,读取机构获取电池模组的条码信息后,可以使得上位机获取该电池模组相应的检测配方,提升适用性和检测准确性。
在本申请的一实施例中,所述测试系统还包括测试架体,所述测试架体包括纵横连接的多个横梁与多个竖梁,多个所述横梁与所述竖梁围合形成有测试通道,所述测试通道供所述电池模组穿过,所述读取机构设于所述测试通道内。
该测试架体可以为电池模组提供一个检测环境,防止外界干扰,有效提升防护性能,并方便组装固定各个部件,例如读取机构。
在本申请的一实施例中,所述测试系统还包括图像采集装置,所述图像采集装置设于一所述横梁,并与所述上位机电连接,以对所述测试通道内的电池模组进行拍摄采样,并发送至所述上位机。
该图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,并进行存储,从而为后续的性能分析提供追溯根据。
在本申请的一实施例中,所述测试系统还包括光源,所述光源设于另一所述横梁,并位于所述图像采集装置的一侧;
且/或,所述测试系统还包括安全光栅,所述安全光栅设于相对设置的两竖梁之间,并与所述上位机电连接,以封锁所述测试通道。
光源的设置可以为待检测的电池模组进行补光,从而提升图像采集效果。
安全光栅的设置可以进一步提升防护性。
在本申请的一实施例中,所述测试系统还包括集成柜,所述集成柜形成有容纳腔,并位于所述测试架体的一侧,所述测试电路板、测试设备以及下位机均设于所述容纳腔内,所述航空插头至少部分裸露于所述集成柜。
此处,将各个部件集成在集成柜内,可有效节省占地面积,提高设备架设的灵活性。且集成柜在测试架体的外侧放置,处于生产线的外部,提高了设备的可维护性。
在本申请的一实施例中,所述测试系统还包括警示件,所述警示件安装于所述测试架体和/或所述集成柜,并与所述上位机电连接,以反映所述测试系统的运行状态。
该警示件可以显示测试系统的运行状态,例如,正常运行、故障或是待机等,从而能够提前进行预判,避免出现返工,提升检测效率。
在本申请的一实施例中,所述测试系统还包括人机交互装置,所述人机交互装置安装于所述测试架体,并与所述上位机电连接,以显示检测信息或调试所述测试系统。
人机交互装置可以使操作人员对测试系统的检测数据进行监测,并能够随时调整测试系统的运行参数,以保证测试系统的测试性能。
在本申请的一实施例中,一所述竖梁可转动连接有安装架,所述人机交互装置安装于所述安装架,以相对于所述测试架体在水平面上可转动设置。
竖梁可转动连接该安装架,可以使其在水平面内转动设置,从而可以调整人机交互装置的朝向,进一步方便操作人员的观看与操作。
在本申请的一实施例中,所述测试系统还包括收纳件,所述收纳件设于一所述横梁或竖梁,以收纳所述转接测试线束。
收纳件的设置可以方便收纳转接测试线束,使得测试系统更加整洁,并防止转接测试线束的损坏。
在本申请的一实施例中,所述测试系统还包括启动件,所述启动件设于所述测试架体的周侧,所述启动件设有两个启动部,两所述启动部与所述上位机电连接,以开启所述测试系统;
且/或,所述测试系统还包括刷卡器,所述刷卡器安装于所述测试架体,并与所述上位机电连接。
启动件用于启动测试系统,通过双手同时控制两个启动部,能够使得操作人员的双手均位于测试通道外,从而避免对测试进行干扰,提高防护性。
在有或没有启动件的结构基础上,刷卡器的设置提升了该测试系统的安防级别,只有在刷卡确认身份后,才可以进行测试系统的调试和控制。
本申请还提出一种测试系统的测试方法,所述测试系统包括测试电路板、测试设备、上位机和下位机,所述测试方 法包括步骤:
所述上位机发送测试指令至所述下位机;
所述下位机接收所述测试指令,并控制测试电路板上其中两所述总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通;
所述测试设备检测所述电池单体的参数信息;
所述上位机发送读取所述测试设备的参数信息的指令,并接收存储所述参数信息。
该方法是上位机发送测试指令至下位机,下位机可以对需要导通的控制开关进行控制,使得一总线路的第一分支与测试设备的正极电导通,另一总线路的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组内的电池单体进行参数信息的检测。上述两个总线路可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚去选择对应的两个总线路。以此类推,则可以实现对多个电池单体的参数信息依次检测。通过本申请中的测试系统的方法可以实现对电池模组中的多个电池单体的参数的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
在本申请的一实施例中,所述测试设备包括万用表,所述万用表具有电压模式和电阻模式,并与所述下位机电连接,所述参数信息为电压数据;
所述上位机发送读取所述测试设备的参数信息的指令,并接收存储所述参数信息步骤的步骤之后,包括:
所述下位机发送切换模式指令至万用表;
所述万用表切换至电阻模式;
所述下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,以使所述万用表得到电阻数据;
所述上位机发送读取所述万用表的电阻数据的指令,并接收存储所述电阻数据。
该测试方法通过万用表的使用,可以逐一测试电池模组内的单个电池单体的电压以及NTC电阻等值,或是所需要测试的连接器引脚的电压等,进而根据检测结果判断电池模组内的采样线束是否通断。该方法中通过万用表可实现两个数值的检测,无需反复插拔线束,可进一步提升检测效率,并对线束和插接件进行防护,提高使用性能。
在本申请的一实施例中,所述上位机发送读取所述万用表的电阻数据的指令,并接收存储所述电阻数据的步骤之后,还包括:
所述上位机根据所述电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
或,所述上位机根据所述电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
该方法中通过上位机的处理可以实现对电池模组的线束检测,以快速发现电池模组的缺陷,避免返工,同时实现对不同测试结果的区分,从而为后续的处理提供可追溯的数据。
在本申请的一实施例中,所述测试系统还包括测试架体和读取机构,所述测试架体形成有测试通道;
所述上位机发送测试指令至所述下位机的步骤之前,还包括步骤:
所述上位机检测所述测试通道进入电池模组后,发送读取所述电池模组的条码的指令至所述读取机构;
所述读取机构读取所述电池模组的条码,并发送条码信息至所述上位机;
所述上位机根据所述条码信息调用对应的检测配方,并触发检测机制。
通过读取机构的设置可以根据不同类型的电池模组进行更加针对性的检测,提高检测效率。
在本申请的一实施例中,所述检测系统还包括图像采集装置,所述上位机检测所述测试通道进入电池模组后,发送读取所述电池模组的条码的指令至所述读取机构的步骤之前,还包括:
所述上位机发送图像采集指令至图像采集装置;
所述图像采集装置采集所述电池模组的图像数据,并发送至所述上位机;
所述上位机接收所述图像数据并储存。
此处,图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,并进行存储,从而为后续的性能分析提供追溯根据。
本申请还提出一种测试系统的测试方法,所述测试系统包括测试电路板、测试设备、上位机和下位机,所述测试方法包括步骤:
发送第一测试指令至下位机,以使所述下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,使得所述测试设备检测所述电池单体的参数信息;
发送读取测试设备的参数信息的指令,并接收存储所述参数信息。
该方法是上位机发送测试指令至下位机,下位机可以对需要导通的控制开关进行控制,使得一总线路的第一分支与测试设备的正极电导通,另一总线路的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组内的电池单体进行参数信息的检测。上述两个总线路可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚去选择对应的两个总线路。以此类推,则可以实现对多个电池单体的参数信息的依次检测。通过本申请中的测试系统的方法可以实现对电池模组中的多个电池单体的参数的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
在本申请的一实施例中,所述测试设备包括万用表,所述万用表具有电压模式和电阻模式,并与所述下位机电连接, 所述参数信息为电压数据;发送读取测试设备的参数信息的指令,并接收存储所述参数信息的步骤之后,还包括:
发送第二测试指令至所述下位机,以使所述下位机控制所述万用表切换至电阻模式,并获得电阻数据;
发送读取万用表的电阻数据的指令,并接收存储所述电阻数据。
该测试方法通过万用表的使用,可以逐一测试电池模组内的单个电池单体的电压以及NTC电阻等值,或是所需要测试的连接器引脚的电压等,进而根据检测结果判断电池模组内的采样线束是否通断。该方法中通过万用表可实现两个数值的检测,无需反复插拔线束,可进一步提升检测效率,并对线束和插接件进行防护,提高使用性能。
在本申请的一实施例中,发送读取万用表的电阻数据的指令,并接收存储所述电阻数据的步骤之后,还包括:
根据所述电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
或,根据所述电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
该方法中通过上位机的处理可以实现对电池模组的线束检测,以快速发现电池模组的缺陷,避免返工,同时实现对不同测试结果的区分,从而为后续的处理提供可追溯的数据。
在本申请的一实施例中,所述测试系统还包括测试架体和读取机构,所述测试架体形成有测试通道,发送第一测试指令至下位机的步骤之前,还包括步骤:
检测到所述测试通道进入电池模组;
发送读取所述电池模组的条码的指令至读取机构,以读取所述电池模组的条码;
获取所述条码信息,并根据所述条码信息调用对应的检测配方触发检测机制。
通过读取机构的设置可以根据不同类型的电池模组进行更加针对性的检测,提高检测效率。
在本申请的一实施例中,所述检测系统还包括图像采集装置,检测到所述测试通道进入电池模组的步骤之后,发送读取所述电池模组的条码的指令至读取机构,以读取所述电池模组的条码的步骤之前,还包括:
发送图像采集指令至图像采集装置;
获取并存储所述图像采集装置采集所述电池模组的图像数据。
此处,图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,并进行存储,从而为后续的性能分析提供追溯根据。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图示出的结构获得其他的附图。
图1为本申请测试系统的结构示意图;
图2为本申请测试系统中测试电路板一实施例的结构示意图;
图3为本申请测试系统中的万用表与电池模组的连接结构示意图;
图4为本申请测试系统的测试方法第一实施例的流程图;
图5为本申请测试系统的测试方法第二实施例的流程图;
图6为本申请测试系统的测试方法第三实施例的流程图;
图7为本申请测试系统的测试方法第四实施例的流程图;
图8为本申请测试系统的测试方法第五实施例的流程图;
图9为本申请测试系统的测试方法第六实施例的流程图;
图10为本申请测试系统的测试方法第七实施例的流程图;
图11为本申请测试系统的测试方法第八实施例的流程图;
图12为本申请测试系统的测试方法第九实施例的流程图。
附图标号说明:

本申请目的的实现、功能特点及优点将结合实施例,参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本申请的一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
需要说明,本申请实施例中所有方向性指示(诸如上、下、左、右、前、后……)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等,如果该特定姿态发生改变时,则该方向性指示也相应地随之改变。
在本申请中,除非另有明确的规定和限定,术语“连接”、“固定”等应做广义理解,例如,“固定”可以是固定连接,也可以是可拆卸连接,或成一体;可以是机械连接,也可以是电连接;可以是直接相连,也可以通过中间媒介间接相连,可以是两个元件内部的连通或两个元件的相互作用关系,除非另有明确的限定。对于本领域的普通技术人员而言,可以根据具体情况理解上述术语在本申请中的具体含义。
另外,在本申请中涉及“第一”、“第二”等的描述仅用于描述目的,而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此,限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外,全文中出现的“和/或”的含义为,包括三个并列的方案,以“A和/或B为例”,包括A方案,或B方案,或A和B同时满足的方案。另外,各个实施例之间的技术方案可以相互结合,但是必须是以本领域普通技术人员能够实现为基础,当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在,也不在本申请要求的保护范围之内。
本领域中所提到的电池按是否可充电可以分为一次性电池和可充电电池。目前常见的可充电电池的类型有:铅酸电池、镍氢电池和锂离子电池。锂离子电池目前广泛应用于纯电动车及混合动力车,用于这种用途的锂离子电池的容量相对略低,但有较大的输出、充电电流,也有较长的使用寿命,但成本较高。
本申请实施例中所描述的电池是指可充电电池。下文中将主要以锂离子电池为例来描述本申请公开的实施例。应当理解的是,本申请公开的实施例对于其他任意适当类型的可充电电池都是适用的。本申请中公开的实施例所提到的电池可以直接或者间接应用于适当的装置中来为该装置供电。
本申请公开的实施例中所提到的电池是指包括一个或多个电池单体以提供预定的电压和容量的单一的物理模块。电池单体是电池中的基本单元,其包括正极极片、负极极片、电解液和隔膜。锂离子电池单体主要依靠锂离子在正极极片和负极极片之间的移动来工作。一般按封装的方式可以分为:柱形电池单体、长方体电池单体和软包电池单体。下文中将主要围绕长方体电池单体来展开。应当理解的是,下文中所描述的实施例在某些方面对于柱形电池单体或软包电池单体而言也是适用的。
电池技术的发展要同时考虑多方面的设计因素,例如,能量密度、循环寿命、放电容量、充放电倍率等性能参数。在电池生产制造过程中,电池往往需要经过许多的工序、工位才能完成生产、测量,制成一个完整的电池。首先是将正极极片、负极极片、电解液和隔膜成型为电池单体的形态,然后再进行入壳、焊接、化成等工序,形成电池单体。
汽车动力电池系统中的电池模块是由电池单体串并联组成的模组,模组的采样线束用于采集模组的每个电池单体的电压、串并联后的开路总电压、温度监测点的温度,并通过标准接插件输出。由于焊接不良、端子压接不良、外力压断等原因造成模组线束接触不良或断路,导致电压和温度点的丢失,导致汽车无法上路行驶或出现行驶故障。因此,模组线束通断测试在电池模组(电池包)生产过程中非常重要。
相关技术中,模组线束通断测试方法主要采用手工接线、手持万用表测试,对于多个电池单体,需要频繁接线换线,测试速度慢、效率低。由于人员因素的影响,容易漏测,且测试精度低,不能准确检测出采样线束板与电池模组的连接质量问题。
因此,为了解决相关技术中测试效率低的问题,本申请对测试系统结构进行改进。通过在测试系统中设置可以同时测试电池模组中多个电池单体的电压的测试电路板,从而针对同一模组内的多个电池单体,无需进行反复插拔线体,以提高检测效率和检测精度。
请参照图1至图3,在本申请的一实施例中,测试系统100包括测试电路板10、测试设备、下位机以及上位机,测试设备用于测试电池模组的多个电池单体的参数信息;测试电路板10设有测试电路11,测试电路11包括多个并排设置的总线路111,每一总线路111的一端用于与电池模组的每一电池单体的正极或负极连接,每一总线路111的另一端连接有第一分支和第二分支;每一第一分支设有一个控制开关115,每一第二分支设有一个控制开关115;
下位机电连接控制开关115,以控制两总线路111中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通;上位机与测试设备和下位机均通讯连接,以控制下位机的运行和读取测试设备的参数信息。
此处,测试电路板10为测试电路11的载体,其具有多个总线路111,多个总线路111的一端可并排设于测试电路板10的板体宽度上的一侧,从而方便电池模组的线束进行连接。总线路111的另一端分出第一分支和第二分支,并且多个第一分支和第二分支设在测试电路板10的板体宽度上的另一侧,从而使得多个总线路111在板体的长度方向上间隔并排设置,多个第一分支和第二分支也在板体的长度方向上并排间隔设置,并可设置为插针式插接件,进一步方便线束的对接。在每一个第一分支和每一个第二分支上均设置有一个控制开关115,该控制开关115的开闭影响该总线路111的通断,从而对于检测不同的电池单体。
测试设备的正负极通过测试电路板10与电池模组的电池单体的正负极电连接,用于检测并显示电池单体的参数信息,参数信息可以是电压数据或电阻数据等,当为电压数据时,测试设备的类型可以为万用表、电压表或是示波器等,在此不做限定。
下位机,即可编程逻辑控制器(Programmable Logic Controller,简称PLC)。测试电路11与下位机进行电连接,两者可以是直接线路连接,也可以是无线通信连接,只需能够对控制开关115的开闭进行控制即可。
上位机则是承载可以对下位机进行指令发送以及各种数据的读取和处理的软件的载体,例如,其作为总控制器,可以发送测试指令至下位机,并最终获取检测结果,进行分析处理,判断线束的通断与否。
上述的测试系统100中每一个总线路111的一端连接至电池模组的每一个电池单体的正极,另一端通过分支线路113连接到测试设备。上位机发送测试指令至下位机,下位机可以对需要导通的控制开关115进行控制,使得一总线路111的第一分支与测试设备的正极电导通,另一总线路111的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组的电池单体进行参数信息的检测。上述两个总线路111可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚定义去选择对应的两个总线路111。然后,再控制另两个总线路111中的一者的第一分支与测试设备的正极电导通,另一者的第二分支与测试设备的负极电导通,从而检测另一电池单体的参数信息,如此往复,无需测试设备与电池模组进行线路的反复插拔,即可实现对电池模组内的多个电池单体的电压检测。该测试系统100中的上位机可以获取测试设备检测的电池单体的参数信息,并对此进行处理分析,继而可获得线束通断的情况。
因此,本申请中的测试系统100可以实现对电池模组中的多个电池单体的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
请继续参照图2,在本申请的一实施例中,多个第一分支远离总线路111的一端连接形成第一连接端112,多个第二分支远离总线路111的一端连接形成第二连接端114,第一连接端112和第二连接端114中的一者与测试设备的正极电连接,另一者与测试设备的负极电连接。
此处,每一总线路111的另一端分支出第一分支和第二分支,第一分支沿总线路111的延伸方向延伸设置,第二分支则弯折后沿总线路111的延伸方向延伸设置,如此,多个总线路111的多个第一分支间隔并排设置,并最终汇集连接形成第一连接端112,多个总线路111的多个第二分支并排间隔设置,并最终汇集连接形成第二连接端114,将第一连接端112直接与测试设备的正负极中的一者连接,第二连接端114直接与测试设备的正负极中的另一者连接,仅需要下位机对控制开关115的开闭进行控制即可。
设置第一连接端112和第二连接端114可以使得多个第一分支和多个第二分支无需与测试设备进行反复插拔,进一步减少操作工序,提升检测效率,并对线路进行保护,降低损坏几率。
请继续参照图2,在本申请的一实施例中,第一连接端112设有至少两个,至少两个第一连接端112并联设置;
且/或,第二连接端114设有至少两个,至少两个第二连接端114并联设置。
为了提升测试电路板10的使用性能,可以设置至少两个第一连接端112,例如,两个或三个或三个以上。此处,设置两个第一连接端112,从而在其中一个第一连接端112与测试设备的连接处出现故障时,可以通过另一个第一连接端112的转接而实现测试,有效节省成本并可提高测试电路板10的使用性能。
与上述相同的,可以设置至少两个第二连接端114,在其中一个第二连接端114有故障时可以转接其他第二连接端114,进一步提升测试电路板10的使用性能。
请再次参照图2,在本申请的一实施例中,测试电路11还包括多个保险丝117,每一保险丝117设于一总线路111上。
此处,保险丝117设于总线路111上,是指保险丝117串联在总线路111上,从而可以在该线路出现短路或故障时可以自行熔断,起到保护设备的目的。一示例中,总线路111与保险丝117的连接方式可以是插拔式,例如,保险丝117具有保险丝117座,将总线路111的部分线路插入保险丝117座内实现接线。于其他示例中,也可以选择螺纹式连接,在此不做赘述。
每一总线路111上都配置保险丝117,可有效防止由于电池模组的插接件或中间连接的插头损坏导致的电池模组短路,进而损坏设备的情况,提升测试电路11的安全使用性能。
在本申请的一实施例中,测试设备为万用表,万用表包括电压模式和电阻模式,万用表与上位机或下位机电连接,以在电压模式和电阻模式中切换。
一示例中,万用表可以是六位半或七位半精度的数字万用表20,从而具有较高的精度,可以显著提升检测精度,以提升线束通断的及时性。此处,测试设备可选为万用表,其可以具有多种操作模式以及多级档位,例如,电压或电阻等,当上位机或是下位机控制万用表切换至电阻模式时,也可以实现多个电池单体处的热敏电阻的检测,继而获得电阻对应的温度值;或是电池单体的电阻值。
通过万用表的使用能够进一步提升检测效率,并简化结构。
请结合图3,在本申请的一实施例中,测试系统100还包括转接测试线束,多个总线路111的一端连接有航空插头,转接测试线束的两端分别插接于航空插头和电池模组的插接端。
此处,转接测试线束是一段可以通过插接方式进行连接的线段,方便进行插拔连接,提高效率和便利性。转接测试线束的一端通过航空插头与测试电路板10电连接,该航空插头的pin数和航空插头的数量可以根据需要进行设定,从而对应多个总线路111的数量以及电池模组的电池单体数量。例如,可选择两套的64pin的航空插头。该航空插头的设置可以方便进行转接测试线束的更换与连接。转接测试线束的长度不宜过长,以节约成本。为了对转接测试线束进行保护,还可以设置线束通道,从而将转接测试线束通过该线束通道与电池模组的插接件连接,有效降低损坏几率。
通过转接测试线束和航空插头的设置,从而在检测时仅需要将转接测试线束与电池模组的接插件进行连接,无需反复插拔测试电路11的总线路111的接口,从而降低测试线路板和航空插头的磨损速度,达到维护方便和降本的目的。
在本申请的一实施例中,测试系统100还包括读取机构,读取机构与上位机电连接,读取机构用于读取电池模组的条码信息,并发送至上位机,上位机根据条码信息调用测试方案。
此处,读取机构可以是无线射频自动识别装置,也可以是条形码扫码器,在此不做限定。因电池模组的结构和类型的不同,设置读取机构对电池模组进行条码信息的读取,从而获取该电池模组相应的类型或结构,方便上位机根据获取到的电池模组的类型或结构选用相对应的测试方案,提升适用性和检测准确性。
测试方案是按照电池产品的测试需求(需求一般是单体电芯电压测试、单体电芯电压压差、NTC阻值测试)以及连接器引脚定义,先在上位机软件中编辑好测试顺序、万用表测量模式(电压模式或电阻模式)、需要闭合的继电器编号。
请继续参照图1,在本申请的一实施例中,测试系统100还包括测试架体30,测试架体30包括纵横连接的多个横梁31与多个竖梁32,多个横梁31与竖梁32围合形成有测试通道30a,测试通道30a供电池模组穿过,读取机构设于测试通道30a内。
测试架体30可以为框体结构,其包括多个横梁31和多个竖梁32,横梁31和竖梁32的材质可以为型材或木材等,方便加工且结构稳定性好。横梁31和竖梁32的连接方式可以是固定连接,例如,粘接或焊接等,也可以是可拆卸连接,例如,榫卯连接、插接或是螺纹连接等,在此不做限定。一示例中,该测试架体30包括四个竖梁32和多个连接于两两竖梁32之间的横梁31,以形成方形框体结构。测试架体30的中下部形成有测试通道30a,从而可以与其他生产线相适配,直接通过传送结构将电池模组从测试通道30a通过,形成完整的电池模组的检测流程。于其他示例中,竖梁32也可以设置三个或四个以上。读取机构可以设于其中一横梁31,也可以设于一竖梁32,在此不做限定,只需对应电池模组的条码即可。
该测试架体30可以为电池模组提供一个检测环境,防止外界干扰,有效提升防护性能;并方便组装固定各个部件,例如读取机构,提供支撑,并与生产线相适配,提升电池模组的整体检测效率。
于一示例中,该测试架体30还包括地脚33,四个地脚33分别安装于竖梁32的底端,从而可以对竖梁32和横梁31进行调平操作,并同时可以提高支撑稳定性。于另一示例中,测试架体30还可以包括防护板,该防护板安装于竖梁32的顶端和位于顶部的横梁31的连接处,也可以安装于竖梁32的侧面,从而能够对测试通道30a进行防护,防止外部环境产生干扰。
请继续参照图1,在本申请的一实施例中,测试系统100还包括图像采集装置40,图像采集装置40设于一横梁31,并与上位机电连接,以对测试通道30a内的电池模组进行拍摄采样,并发送至上位机。
一示例,图像采集装置40可以为线扫相机,分辨力高,成像质量好。于其他示例中,图像采集装置40也可以是3d相机,面型相机或扫描仪等,在此不做限定。图像采集装置40安装于一横梁31,该横梁31靠近竖梁32的顶端,并且在水平面的投影位于测试通道30a的中心位置或者一端,从而能够方便对电池模组的整体结构进行全面的采集。
该图像采集装置40可以对电池模组的整体情况和电池单体的连接情况进行采集,并发送给上位机,上位机进行存储,从而为后续的性能分析提供追溯根据。
请参照图1,在本申请的一实施例中,测试系统100还包括光源50,光源50设于另一横梁31,并位于图像采集装置40的一侧;
且/或,测试系统100还包括安全光栅60,安全光栅60设于相对设置的两竖梁32之间,并与上位机电连接,以封锁测试通道30a。
一示例中,光源50为条形光源50,具有较广的出光范围,可以为图像采集装置40提供更好的补光效果。于其他示例中,光源50也可以是点阵灯珠结构。光源50设置在图像采集装置40在水平面上的一侧,并发出朝向电池模组的光线。
光源50的设置可以为待检测的电池模组进行补光,从而提升图像采集效果。
在有或没有光源50的基础上,为了提升安全性,在测试架体30上设置有安全光栅60,该安全光栅60也即光电安全保护装置,可包括发射端和接收端,两者分别安装于相对设置的两竖梁32,发射端发射光线,接收端在接收到发射的 光线时,则表示无障碍物影响;接收端接收不到发射的光线时则表示有障碍物伸入测试通道30a内,会影响检测,从而将信号发送至上位机,该上位机可以发送暂停的指令至下位机,从而使下位机控制检测设备停止检测。
安全光栅60的设置可以进一步提升防护性,并能够提高检测效果。
请再结合图1,在本申请的一实施例中,测试系统100还包括集成柜70,集成柜70形成有容纳腔,并位于测试架体30的一侧,测试电路板10、测试设备以及下位机均设于容纳腔内,航空插头至少部分裸露于集成柜70。
集成柜70可呈方体结构设置,方便放置于地面,形成稳定的支撑结构。于其他示例中,集成柜70的形状还可以为圆柱体或其他形状。集成柜70的材质可以为金属,例如,不锈钢或铝合金等,结构强度高,耐用。该集成柜70的表面可做除静电处理,从而防止对内部的部件产生影响。可选的,集成柜70包括柜体和柜门,柜体形成具有开口的容纳腔,柜门可活动连接于柜体,从而可关闭或打开容纳腔的开口,方便操作人员进行维修与安装。测试电路板10、测试设备以及下位机均位于容纳腔内,可以避免被干扰,提高防护性。测试设备的固定安装也可以提升检测精度,一示例中,根据需要可以在柜体设置可视窗口,从而能够观察测试设备的表盘情况。容纳腔内还可以设置其他辅助组件,例如,电源或散热件等,在此不做限定。在设置有航空插头和转接测试线束时,将航空插头部分裸露于柜体,方便转接测试线束的插接。
一示例中,在集成柜70和测试架体30之间还可以设置线束套筒,线束套筒形成线束通道,转接测试线束可以穿过线束套筒,从而分别与电池模组和航空插头连接,可以提升对转接测试线束的防护,延长其使用寿命。
此处,将各个部件集成在集成柜70内,可有效节省占地面积,提高设备架设的灵活性。集成柜70可以独立设置,并放置在测试架体30的一侧,也即处于生产线的外部,提高了设备的可维护性。
请参照图1,在本申请的一实施例中,测试系统100还包括警示件81,警示件81安装于测试架体30和/或集成柜70,并与上位机电连接,以反映测试系统100的运行状态。
此处,警示件81可以是灯或警报器,例如,警示件81为三色灯时,可以具有三种颜色的灯光和蜂鸣器四种输出状态,当测试系统100运行正常时,可以输出绿色灯光;当测试系统100为待料时,可以输出黄色灯光,当测试系统100宕机或出现故障时,可以输出红色灯光,并发出蜂鸣声,以进行提醒。
该警示件81可以实时反映测试系统100的运行状态,从而能够进行及时的处理和维修,避免出现过多电池模组的返工检测,提升检测效率。
请再结合图1,在本申请的一实施例中,测试系统100还包括人机交互装置,人机交互装置安装于测试架体30,并与上位机电连接,以显示检测信息或调试测试系统100。
一示例中,人机交互装置包括有显示器91、键盘以及鼠标等,显示器91可显示测试设备测试得出的电池单体的参数信息,从而供操作人员进行实时监测。键盘和鼠标还可以方便操作人员进行测试系统100的参数调试和数据的展示。另一示例中,人机交互装置还可以为触控显示屏。
人机交互装置可以使操作人员对测试系统100的检测数据进行监测,并能够随时调整测试系统100的运行参数,以提升测试系统100的测试性能。
在本申请的一实施例中,一竖梁32可转动连接有安装架93,人机交互装置安装于安装架93,以相对于测试架体30在水平面上可转动设置。
一示例中,安装架93的一侧和竖梁32中的一者设有转轴,另一者设置有轴孔,通过转轴与轴孔的配合,实现安装架93相对于竖梁32的转动。其他示例中,也可以通过其他部件实现转动连接,例如,铰链等。为了限定安装架93的转动角度,可以设置锁固件对安装架93与竖梁32的转动进行锁固,从而限位于某一转动角度,当需要调节时,打开锁固件即可。或者,将安装架93的转动结构设置阻尼件,以使得安装架93可以阻尼式地转动,以便可以限位在任意位置。可选的示例中,安装架93包括支撑部和卡固部,支撑部用于放置键盘和鼠标,卡固部形成有安装槽,可以将显示组件安装于安装槽内。
竖梁32可转动连接有安装架93,可以使安装架93在水平面内转动设置,从而可以调整人机交互装置的朝向,进一步方便操作人员的观看与操作。
在本申请的一实施例中,测试系统100还包括收纳件82,收纳件82设于一横梁31或竖梁32,以收纳转接测试线束。
一示例,收纳件82为挂钩结构,其具有固定部和与固定部连接的弯钩,固定部用于与竖梁32可拆卸连接,弯钩用于挂设转接测试线束。弯钩的数量可以是两个,防止转接测试线束过度弯折,以延长其使用寿命。于其他示例中,收纳件82也可以是盒体结构等。在检测结束后,可以将转接测试线束与电池模组连接的一端挂于收纳件82,或者是放置于收纳件82内。于其他示例中,也可以将固定部安装在一横梁31,且该横梁31的高度可位于竖梁32的中下部,方便操作收纳。
收纳件82的设置可以方便收纳转接测试线束,使得测试系统100更加整洁,并防止转接测试线束的损坏。
在本申请的一实施例中,测试系统100还包括启动件83,启动件83设于测试架体30的周侧,启动件83设有两个启动部,两启动部与上位机电连接,以开启测试系统100;
且/或,测试系统100还包括刷卡器94,刷卡器94安装于测试架体30,并与上位机电连接。
启动件83用于启动测试系统100,可以向上位机发送启动的指令,使得上位机进入测试状态。启动件83包括两个启动部,两个启动部同时按压才可以实现启动指令的发送,继而触发上位机的测试状态。于一示例中,启动件83位于一横梁31处,且该横梁31靠近竖梁32的中下部,与成人站立双手垂下可以触摸到的高度,方便操作人员的操作。通过双手同时控制两个启动部,能够使得操作人员的双手均位于测试通道30a外,从而避免对测试进行干扰,提高防护性。
在有或没有启动件83的结构基础上,可以在安装架93的支撑部或安装部设置刷卡器94,刷卡器94可以供操作人员进行刷卡,并与上位机进行电连接,在操作者刷卡后,可以将卡上的信息发送给上位机进行身份确认,若符合,则上位机发送可以进行后续的参数调整和数据展示的指令。刷卡器94的设置提升了该测试系统100的安防级别,在刷卡确 认身份后,才可以进行测试系统100的调试和控制。
请参照图4,本申请还提出一种测试系统的测试方法,测试系统包括测试电路板、测试设备、上位机和下位机,测试方法包括步骤:
步骤S1:上位机发送测试指令至下位机;
步骤S2:下位机接收测试指令,并控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通;
步骤S3:测试设备检测电池单体的参数信息;
步骤S4:上位机发送读取测试设备的参数信息的指令,并接收存储参数信息。
上述方法中,步骤S1中,在上位机发送测试指令至下位机前,可以通过手动触发启动件开启测试系统。步骤2中,下位机在接收测试指令后,可以逐一控制第一分支和第二分支上的控制开关,从而使得一个总线路与测试设备的正极导通,另一总线路与测试设备的负极导通,逐一测试所需测试的电池单体的参数信息,直至所需要测试的电池单体均进行检测完成。上述两个总线路111可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚定义去选择对应的两个总线路111。此处的测试设备可以是万用表、电压表或是示波器等,此处的参数信息可以是电压数据,也可以是电阻数据等,可以根据需要进行选择。步骤S3中,测试设备在测试电路导通的同时,可以获取电池单体的参数信息,并可以将参数信息存储,或是直接发送至上位机。步骤S4中,上位机发送读取参数信息的指令时,测试设备再将参数信息发送至上位机,上位机接收后进行存储,并同时可以进行分析,以判断该电池单体的检测线束的通断与否。
该方法是上位机发送测试指令至下位机,下位机可以对需要导通的控制开关进行控制,使得一总线路的第一分支与测试设备的正极电导通,另一总线路的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组的电池单体进行参数信息的检测,例如,电压信息,以此类推,则可以实现对所需测试的电池单体的参数信息依次检测。通过本申请中的测试系统的方法可以实现对电池模组中的多个电池单体的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
请参照图5,在本申请的一实施例中,测试设备包括万用表,万用表具有电压模式和电阻模式,并与下位机电连接,参数信息为电压数据;
上位机发送读取测试设备的参数信息的指令,并接收存储参数信息的步骤之后,包括:
步骤S5:下位机发送切换模式指令至万用表;
步骤S6:万用表切换至电阻模式;
步骤S7:下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,以使万用表得到电阻数据;
步骤S8:上位机发送读取万用表的电阻数据的指令,并接收存储电阻数据。
上述方法中,步骤S5通过下位机发送切换模式至万用表,可以使得信号传输更快,提升控制效率,以使得万用表的切换效率更高。于其他示例中,也可以是上位机直接与万用表通讯连接,并发送切换模式指令给万用表。万用表切换电阻模式后,下位机同测试电压数据一样,控制两总线路对应的控制开关关闭,从而与万用表的导通,进行多个电池单体处的NTC电阻的逐一测试,直至所需要检测的电池单体均检测完成。上述两个总线路111可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚定义去选择对应的两个总线路111。测试设备在测试电路导通的同时,可以获取电池单体的电阻数据,可以将电阻数据直接存储,上位机发送读取参数信息的指令时,测试设备再将参数信息发送至上位机,上位机接收后进行存储,并同时可以进行分析,以判断该电池单体的检测线束的通断与否。或是,其他示例中,万用表在获得电阻数据的同时直接发送至上位机。
该测试方法通过万用表的使用,可以逐一测试电池模组内的单个电池单体的电压以及电阻等值,进而计算得到电压差以及电阻对应的温度等值,从而根据上述结果判断电池模组内的采样线束是否通断,提升检测的精度。该方法中通过万用表可实现两个数值的检测,无需反复插拔线束,可进一步提升检测效率,并对线束和插接件进行防护,提高使用性能。
请参照图6,在本申请的一实施例中,上位机发送读取万用表的电阻数据的指令,并接收存储电阻数据的步骤之后,还包括:
步骤S91:上位机根据电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
或,步骤S92:上位机根据电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
步骤S91中,上位机根据电压数据可以计算单个电池单体的压差,根据电阻数据可以获得NTC电阻对应的温度值,根据检测的实际电压压差和温度值,和标准的压差以及温度值进行对比,若一致,则可以判断电池模组某一位置处的采样线束合格,并将单个电池单体的电压、电压压差、NTC温度等数据进行本地存储,同时直接上传到总执行平台。
步骤S92中,判断依据同上述相同,得到的对比结果若不一致,则表示该处采样线束存在故障或断开,此时需要对得到的数据进行标记后,再进行上传至总执行平台。
该方法中通过上位机的处理可以实现对电池模组的采样线束的检测,以快速发现电池模组的缺陷,避免返工,同时实现对不同测试结果的区分,从而为后续的处理提供可追溯的数据。
请参照图7,在本申请的一实施例中,测试系统还包括测试架体和读取机构,测试架体形成有测试通道;
上位机发送测试指令至下位机的步骤S1之前,还包括步骤:
步骤S01:上位机检测测试通道进入电池模组后,发送读取电池模组的条码的指令至读取机构;
步骤S02:读取机构读取电池模组的条码,并发送条码信息至上位机;
步骤S03:上位机根据条码信息调用对应的检测配方,并触发检测机制。
测试架体可以为电池模组提供一个检测环境,防止外界干扰,有效提升防护性能;并方便组装固定各个部件,例如读取机构,提供支撑,并与生产线相适配,提升电池模组的整体检测效率。
读取机构可以是无线射频自动识别装置,也可以是条形码扫码器,在此不做限定。因电池模组的结构和类型的不同,设置读取机构对电池模组进行条码信息的读取,从而获取该电池模组相应的类型或结构,方便上位机根据获取到的电池模组的类型或结构选用相对应的测试方案。因此,在上位机发送测试指令之前,步骤S01中,先对测试通道内进行检测,判断是否有需要进行检测的电池模组进入,若有,则需要先进行条码信息的读取。步骤S02中,读取机构驱动条码后,将获得的条码信息发送给上位机。然后步骤S03中上位机再根据条码信息调取对应的测试方案和测试机制,从而使得下位机的控制更加有针对性和准确性。
测试方案是按照电池产品的测试需求(需求一般是单体电芯电压测试、单体电芯电压压差、NTC阻值测试)以及连接器引脚定义,先在上位机软件中编辑好测试顺序、万用表测量模式(电压模式或电阻模式)、需要闭合的继电器编号。通过读取机构的设置可以根据不同类型的电池模组进行更加针对性的检测,提升适用性和检测准确性。
请参照图8,在本申请的一实施例中,检测系统还包括图像采集装置,上位机检测测试通道进入电池模组后,发送读取电池模组的条码的指令至读取机构的步骤S01之前,还包括:
步骤S001:上位机发送图像采集指令至图像采集装置;
步骤S002:图像采集装置采集电池模组的图像数据,并发送至上位机;
步骤S003:上位机接收图像数据并储存。
图像采集装置的类型不限定,可以为线扫相机或面型相机、3d相机等。该图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,获得图像数据并发送给上位机;上位机进行存储,从而为后续的性能分析提供追溯根据。
于其他示例中,也可以先进行电池模组的条码信息的读取,再进行图像数据的采集。
请参照图9,本申请还提出一种测试系统的测试方法,测试系统包括测试电路板、测试设备、上位机和下位机,测试方法包括步骤:
步骤S10:发送第一测试指令至下位机,以使下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,使得测试设备检测电池单体的参数信息;
步骤S20:发送读取测试设备的参数信息的指令,并接收存储参数信息。
该测试方法的步骤S10中,该方法是上位机发送第一测试指令至下位机,下位机可以对需要导通的控制开关进行控制,使得一个总线路的第一分支与测试设备的正极电导通,另一个总线路的第二分支与测试设备的负极电导通,如此,可以使得测试设备对电池模组的电池单体进行参数信息的检测,上述两个总线路111可以选择相邻的两个,也可以根据电池模组线束板上的连接器引脚定义去选择对应的两个总线路111。以此类推,则可以实现对多个电池单体的参数信息依次检测。参数信息可以是电压数据,也可以是电阻数据或其他参数等,测试设备根据参数信息的测试对应选择,例如,万用表、电压表或是示波器等。步骤S20中,上位机会获取参数信息,并进行存储,同时进行分析处理,以判断电池模组的采样线束通断情况。
通过本申请中的测试系统的方法可以实现对电池模组中的多个电池单体的依次检测,无需人工进行反复插拔接线,提升检测效率,并提升检测精度。
请参照图10,在本申请的一实施例中,测试设备包括万用表,万用表具有电压模式和电阻模式,并与下位机电连接;参数信息为电压数据;发送读取测试设备的参数信息的指令,并接收存储参数信息的步骤S20之后,还包括:
步骤S30:发送第二测试指令至下位机,以使下位机控制万用表切换至电阻模式,并获得电阻数据;
步骤S40:发送读取万用表的电阻数据的指令,并接收存储电阻数据。
通过下位机发送切换模式至万用表,可以使得信号传输更快,提升控制效率,以使得万用表的切换效率更高。于其他示例中,也可以是上位机直接与万用表通讯连接,并发送切换模式指令给万用表。万用表先处于电压模式检测完电池单体的电压数据之后,接收切换指令并切换电阻模式后,下位机同测试电压数据一样,控制两个总线路对应的控制开关关闭,从而与万用表的导通,进行多个NTC电阻的逐一测试,直至所需要检测的电池单体均检测完成。测试设备在测试电路导通的同时,可以获取电池单体的电阻数据,可以将电阻数据直接存储,上位机发送读取参数信息的指令时,测试设备再将参数信息发送至上位机,上位机接收后进行存储,并同时可以进行分析,以判断该电池单体的检测线束的通断与否。或是,其他示例中,万用表在获得电阻数据的同时直接发送至上位机。
该测试方法通过万用表的使用,可以逐一测试电池模组内所需测试的电池单体的电压以及NTC电阻等值,进而根据检测结果判断电池模组内的采样线束是否通断。该方法中通过万用表可实现两个数值的检测,无需反复插拔线束,简化结构,可进一步提升检测效率,并对线束和插接件进行防护,提高使用性能。
在本申请的一实施例中,发送读取万用表的电阻数据的指令,并接收存储电阻数据的步骤S40之后,还包括:
步骤S510:根据电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
或,步骤S520:根据电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
步骤S510中,上位机根据电压数据可以计算电池单体的压差,根据电阻数据可以获得NTC电阻对应的温度值,根据检测的实际电压压差和温度值,和标准的压差以及温度值进行对比,若一致,则可以判断电池模组某一位置处的采样线束合格,并将单个电池单体的电压、电压压差、NTC温度等数据进行本地存储,同时直接上传到总执行平台。
步骤S520中,判断依据同上述相同,得到的对比结果若不一致,则表示该处采样线束存在故障或断开,此时需要 对得到的数据进行标记后,再进行上传至总执行平台。
该方法中通过上位机的处理可以实现对电池模组的线束检测,以快速发现电池模组的缺陷,避免返工,同时实现对不同测试结果的区分,从而为后续的处理提供可追溯的数据。
请参照图11,在本申请的一实施例中,测试系统还包括测试架体和读取机构,测试架体形成有测试通道,发送第一测试指令至下位机的步骤之前,还包括步骤:
步骤S11:检测到测试通道进入电池模组;
步骤S12:发送读取电池模组的条码的指令至读取机构,以读取电池模组的条码;
步骤S13:获取条码信息,并根据条码信息调用对应的检测配方触发检测机制。
测试架体可以为电池模组提供一个检测环境,防止外界干扰,有效提升防护性能;并方便组装固定各个部件,例如读取机构,提供支撑,并与生产线相适配,提升电池模组的整体检测效率。
读取机构可以是无线射频自动识别装置,也可以是条形码扫码器,在此不做限定。因电池模组的结构和类型的不同,设置读取机构对电池模组进行条码信息的读取,从而获取该电池模组相应的类型或结构,方便上位机根据获取到的电池模组的类型或结构选用相对应的测试方案。因此,在上位机发送测试指令之前,步骤S01中,先对测试通道内进行检测,判断是否有需要进行检测的电池模组进入,若有,则需要先进行条码信息的读取。步骤S02中,读取机构驱动条码后,将获得的条码信息发送给上位机。然后步骤S03中上位机再根据条码信息调取对应的测试方案和测试机制,从而使得下位机的控制更加有针对性和准确性。
通过读取机构的设置可以根据不同类型的电池模组进行更加针对性的检测,提升适用性和检测准确性。
请参照图12,在本申请的一实施例中,检测系统还包括图像采集装置,检测到测试通道进入电池模组的步骤之后,发送读取电池模组的条码的指令至读取机构,以读取电池模组的条码的步骤之前,还包括:
步骤S111:发送图像采集指令至图像采集装置;
步骤S112:获取并存储图像采集装置采集电池模组的图像数据。
此处,图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,并进行存储,从而为后续的性能分析提供追溯根据。
图像采集装置的类型不限定,可以为线扫相机或面型相机、3d相机等。该图像采集装置可以对电池模组的整体情况和电池单体的连接情况进行采集,获得图像数据并发送给上位机;上位机进行存储,从而为后续的性能分析提供追溯根据。
于其他示例中,也可以先进行电池模组的条码信息的读取,再进行图像数据的采集。
一测试系统的测试过程实施例
测试系统的上位机在检测电池模组来料后,通过RFID读取托盘上的电池模组的条码信息,并发送至上位机。上位机根据条码信息自动调用测试配方,并发送测试指令至下位机。
下位机控制测试电路板的测试电路的通断,按测试配方需求,将与电池模组连接的带有转接测试线束的64Pin航空插头与万用表的正负表笔接通,具体地,上位机通知下位机测试第一个电池单体的电压,给下位机下发所需闭合的控制开关(即触点K1和K22),下位机关闭K1和K22,获得第一个电池单体的电压,逐个依次进行测试,获得多个电池单体的电压数据。然后,通过上位机与万用表通讯,将高精度万用表切换电压、电阻模式以及档位,或者是下位机与万用表通讯,以实现切换模式和档位的控制,万用表依次得到多个电池单体的电阻数据。
上位机发送指令读取所述数字万用表的电压数据、电阻数据,计算单电芯压差、NTC电阻对应的温度,并将单个电池单体的电压、电压压差、NTC温度等数据以指定格式存储在本地硬盘中,同时上传至数据追溯系统中。
本申请的测试系统是一种可用于电池模组线束采样板通断测试的自动测试设备,具有高兼容、可追溯、高测试效率、高稳定性、低成本的优点。
测试系统的测试过程另一实施例:
当有电池模组来料时,顶升机构将电池模组顶起脱离倍速链。图像采集装置拍照保存,操作人员安装测试转接线束,按下启动件。
RFID读电池模组的条码,下位机获取条码后发送给上位机,上位机根据条码信息自动调用测试配方。按照测试配方内容进行测试。测试完成后,操作人员拔掉测试转接线束,并归纳好,按下放行按钮。电池模组流出测试系统。
第一种测试配方:测试设备通过上位机控制。
1.上位机按照配方内容,一次性下发所有测试项的指令给下位机;
2.上位机按照测试项切换好万用表模式、量程,并同步发指令给下位机;
3.下位机按照第一个测试项的指令内容,闭合对应的控制开关,并通知上位机闭合动作已完成;
4.上位机读取并保存该测试项结果。
按照步骤2-3-4的顺序进行剩下的测试项逐项测试。
第二种测试配方:测试设备通过下位机控制。
1.上位机按照配方内容,一次性下发所有测试项的指令给下位机;
2.上位机通知PLC开始第n项测试;
3.下位机按照测试项的指令内容,控制万用表切换对应模式(电压/电阻),并同步闭合对应的测试电路的控制开关;
4.控制开关闭合后,下位机读取万用表测试数据,并保存至测试项指定的数据块中。
5.上位机比对到该测试项对应的数据块中有数据,将数据获取并保存、显示在软件界面。
按照步骤2-3-4-5的顺序进行剩下的测试项逐项测试。
以上所述仅为本申请的优选实施例,并非因此限制本申请的专利范围,凡是在本申请的发明构思下,利用本申请说明书及附图内容所作的等效结构变换,或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (26)

  1. 一种测试系统,用于测试电池模组的线束通断情况,所述电池模组包括多个串并联的电池单体,其中,所述测试系统包括:
    测试电路板,所述测试电路板设有测试电路,所述测试电路包括多个并排设置的总线路,每一所述总线路的一端用于与电池模组的每一电池单体的正极或负极连接,每一所述总线路的另一端连接有第一分支和第二分支;每一所述第一分支设有一个控制开关,每一所述第二分支设有一个所述控制开关;
    测试设备,用于测试所述电池模组的多个电池单体的参数信息;
    下位机,所述下位机电连接所述控制开关,以控制其中一所述总线路中的一者连接的第一分支与测试设备的正极电导通,其中另一总线路连接的第二分支与测试设备的负极电导通;以及
    上位机,与所述测试设备和下位机均通讯连接,以控制所述下位机的运行和读取所述测试设备的参数信息。
  2. 如权利要求1所述的测试系统,其中,多个所述第一分支远离所述总线路的一端连接形成第一连接端,多个所述第二分支远离所述总线路的一端连接形成第二连接端,所述第一连接端和第二连接端中的一者与所述测试设备的正极电连接,另一者与所述测试设备的负极电连接。
  3. 如权利要求2所述的测试系统,其中,所述第一连接端设有至少两个,至少两个所述第一连接端并联设置;
    且/或,所述第二连接端设有至少两个,至少两个所述第二连接端并联设置。
  4. 如权利要求1至3中任一所述的测试系统,其中,所述测试电路还包括多个保险丝,每一所述保险丝设于一所述总线路上。
  5. 如权利要求1至4中任一所述的测试系统,其中,所述测试设备为万用表,所述万用表包括电压模式和电阻模式,所述万用表与所述上位机或下位机电连接,以在所述电压模式和电阻模式中切换。
  6. 如权利要求1至5中任一项所述的测试系统,其中,所述测试系统还包括转接测试线束,多个所述总线路的一端连接有航空插头,所述转接测试线束的两端分别插接于所述航空插头和所述电池模组的插接端。
  7. 如权利要求6所述的测试系统,其中,所述测试系统还包括读取机构,所述读取机构与所述上位机电连接,所述读取机构用于读取所述电池模组的条码信息,并发送至所述上位机,所述上位机根据所述条码信息调用测试方案。
  8. 如权利要求7所述的测试系统,其中,所述测试系统还包括测试架体,所述测试架体包括纵横连接的多个横梁与多个竖梁,多个所述横梁与所述竖梁围合形成有测试通道,所述测试通道供所述电池模组穿过,所述读取机构设于所述测试通道内。
  9. 如权利要求8所述的测试系统,其中,所述测试系统还包括图像采集装置,所述图像采集装置设于一所述横梁,并与所述上位机电连接,以对所述测试通道内的电池模组进行拍摄采样,并发送至所述上位机。
  10. 如权利要求9所述的测试系统,其中,所述测试系统还包括光源,所述光源设于另一所述横梁,并位于所述图像采集装置的一侧;
    且/或,所述测试系统还包括安全光栅,所述安全光栅设于相对设置的两竖梁之间,并与所述上位机电连接,以封锁所述测试通道。
  11. 如权利要求8至10中任一所述的测试系统,其中,所述测试系统还包括集成柜,所述集成柜形成有容纳腔,并位于所述测试架体的一侧,所述测试电路板、测试设备以及下位机均设于所述容纳腔内,所述航空插头至少部分裸露于所述集成柜。
  12. 如权利要求11所述的测试系统,其中,所述测试系统还包括警示件,所述警示件安装于所述测试架体和/或所述集成柜,并与所述上位机电连接,以反映所述测试系统的运行状态。
  13. 如权利要求8至12中任一项所述的测试系统,其中,所述测试系统还包括人机交互装置,所述人机交互装置安装于所述测试架体,并与所述上位机电连接,以显示检测信息或调试所述测试系统。
  14. 如权利要求13所述的测试系统,其中,一所述竖梁可转动连接有安装架,所述人机交互装置安装于所述安装架,以相对于所述测试架体在水平面上可转动设置。
  15. 如权利要求8至14中任一项所述的测试系统,其中,所述测试系统还包括收纳件,所述收纳件设于一所述横 梁或竖梁,以收纳所述转接测试线束。
  16. 如权利要求8至15中任一项所述的测试系统,其中,所述测试系统还包括启动件,所述启动件设于所述测试架体的周侧,所述启动件设有两个启动部,两所述启动部与所述上位机电连接,以开启所述测试系统;
    且/或,所述测试系统还包括刷卡器,所述刷卡器安装于所述测试架体,并与所述上位机电连接。
  17. 一种测试系统的测试方法,其中,所述测试系统包括测试电路板、测试设备、上位机和下位机,所述测试方法包括步骤:
    所述上位机发送测试指令至所述下位机;
    所述下位机接收所述测试指令,并控制测试电路板上其中一所述总线路中的一者连接的第一分支与测试设备的正极电导通,其中另一总线路连接的第二分支与测试设备的负极电导通;
    所述测试设备检测所述电池单体的参数信息;
    所述上位机发送读取所述测试设备的参数信息的指令,并接收存储所述参数信息。
  18. 如权利要求17所述的测试系统的测试方法,其中,所述测试设备包括万用表,所述万用表具有电压模式和电阻模式,并与所述下位机电连接,所述参数信息为电压数据;
    所述上位机发送读取所述测试设备的参数信息的指令,并接收存储所述参数信息的步骤之后,包括:
    所述下位机发送切换模式指令至万用表;
    所述万用表切换至电阻模式;
    所述下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,以使所述万用表得到电阻数据;
    所述上位机发送读取所述万用表的电阻数据的指令,并接收存储所述电阻数据。
  19. 如权利要求18所述的测试系统的测试方法,其中,所述上位机发送读取所述万用表的电阻数据的指令,并接收存储所述电阻数据的步骤之后,还包括:
    所述上位机根据所述电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
    或,所述上位机根据所述电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
  20. 如权利要求17所述的测试系统的测试方法,其中,所述测试系统还包括测试架体和读取机构,所述测试架体形成有测试通道;
    所述上位机发送测试指令至所述下位机的步骤之前,还包括步骤:
    所述上位机检测所述测试通道进入电池模组后,发送读取所述电池模组的条码的指令至所述读取机构;
    所述读取机构读取所述电池模组的条码,并发送条码信息至所述上位机;
    所述上位机根据所述条码信息自动调用对应的检测配方,并触发检测机制。
  21. 如权利要求20所述的测试系统的测试方法,其中,所述检测系统还包括图像采集装置,所述上位机检测所述测试通道进入电池模组后,发送读取所述电池模组的条码的指令至所述读取机构的步骤之前,还包括:
    所述上位机发送图像采集指令至图像采集装置;
    所述图像采集装置采集所述电池模组的图像数据,并发送至所述上位机;
    所述上位机接收所述图像数据并储存。
  22. 一种测试系统的测试方法,其中,所述测试系统包括测试电路板、测试设备、上位机和下位机,所述测试方法包括步骤:
    发送第一测试指令至下位机,以使所述下位机控制测试电路板上两总线路中的一者连接的第一分支与测试设备的正极电导通,另一者连接的第二分支与测试设备的负极电导通,使得所述测试设备检测所述电池单体的参数信息;
    发送读取测试设备的参数信息的指令,并接收存储所述参数信息。
  23. 如权利要求22所述的测试系统的测试方法,其中,所述测试设备包括万用表,所述万用表具有电压模式和电阻模式,并与所述下位机电连接,所述参数信息为电压数据;发送读取测试设备的参数信息的指令,并接收存储所述参数信息的步骤之后,还包括:
    发送第二测试指令至所述下位机,以使所述下位机控制所述万用表切换至电阻模式,并获得电阻数据;
    发送读取万用表的电阻数据的指令,并接收存储所述电阻数据。
  24. 如权利要求23所述的测试系统的测试方法,其中,发送读取万用表的电阻数据的指令,并接收存储所述电阻数据的步骤之后,还包括:
    根据所述电压数据和电阻数据判断电池模组的采样线束合格,则上传检测数据至总执行平台;
    或,根据所述电压数据和电阻数据判断电池模组的采样线束不合格,则标记并上传检测数据至总执行平台。
  25. 如权利要求22所述的测试系统的测试方法,其中,所述测试系统还包括测试架体和读取机构,所述测试架体形成有测试通道,发送第一测试指令至下位机的步骤之前,还包括步骤:
    检测到所述测试通道进入电池模组;
    发送读取所述电池模组的条码的指令至读取机构,以读取所述电池模组的条码;
    获取所述条码信息,并根据所述条码信息调用对应的检测配方触发检测机制。
  26. 如权利要求25所述的测试系统的测试方法,其中,所述检测系统还包括图像采集装置,检测到所述测试通道进入电池模组的步骤之后,发送读取所述电池模组的条码的指令至读取机构,以读取所述电池模组的条码的步骤之前,还包括:
    发送图像采集指令至图像采集装置;
    获取并存储所述图像采集装置采集所述电池模组的图像数据。
PCT/CN2023/101919 2023-06-21 2023-06-21 测试系统及其测试方法 Ceased WO2024259681A1 (zh)

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