CN214503838U - Battery pack testing system - Google Patents
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- CN214503838U CN214503838U CN202023164037.8U CN202023164037U CN214503838U CN 214503838 U CN214503838 U CN 214503838U CN 202023164037 U CN202023164037 U CN 202023164037U CN 214503838 U CN214503838 U CN 214503838U
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- 238000012360 testing method Methods 0.000 title claims abstract description 110
- 238000001514 detection method Methods 0.000 claims abstract description 115
- 238000012545 processing Methods 0.000 claims abstract description 57
- 238000004891 communication Methods 0.000 claims abstract description 53
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000009413 insulation Methods 0.000 claims abstract description 9
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000013522 software testing Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000010561 standard procedure Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model provides a battery package test system, include: the device comprises a parameter detection circuit, a voltage-withstanding detection circuit, a communication detection circuit, a charge-discharge detection circuit and a processing circuit; the processing circuit is respectively connected with the parameter detection circuit, the voltage-withstanding detection circuit, the communication detection circuit and the charging and discharging detection circuit; the parameter detection circuit is used for detecting the voltage and the internal resistance of the battery pack and outputting a first signal and a second signal to the processing circuit according to the detection result; the withstand voltage detection circuit is used for detecting the withstand voltage of the battery pack and the insulation impedance of the battery pack and outputting a third signal and a fourth signal to the processing circuit according to the detection result; the communication detection circuit is used for detecting the communication condition between the battery pack and the BMS and outputting a fifth signal to the processing circuit according to the detection result; the utility model provides a battery package test system can the automatic test result that generates the battery package, need not the manual test battery package of staff, has improved the efficiency of software testing of battery package.
Description
Technical Field
The utility model relates to a battery field especially relates to a battery package test system.
Background
For China, automobile pollution is increasingly serious, tail gas, noise and the like damage the environment to the extent that control and management are necessary, and particularly, the situation becomes more serious in large and medium cities with dense population and crowded traffic. Therefore, the new energy automobile industry is greatly developed, and with the continuous popularization of new energy automobiles, the number of the battery packs in the new energy automobiles is increased.
The method comprises the steps that a worker needs to test a battery pack before the battery pack enters a market after being assembled, at present, after most of the battery packs are assembled, the voltage of each string of single batteries is measured and recorded one by one through a universal meter, whether the battery packs are qualified or not is confirmed through a calibration judgment standard, after the voltage measurement is completed, the insulation resistance value and the withstand voltage leakage current of the positive pole and the negative pole of the battery pack are measured through a megohmmeter and a voltage withstanding tester respectively, data are recorded, and whether the battery packs are qualified or not is confirmed through the calibration judgment standard. After the basic performance is detected to be qualified, the low-voltage communication wire harness of the Battery pack is required to be connected according to the guidance of a Standard Operating Procedure (SOP) Operating manual, a Battery Management System (BMS) upper computer is linked and adjusted according to steps, whether each parameter in a BMS program is consistent with the specification or not and whether voltage and temperature information collected by the BMS is normal or not are checked, after the BMS information is confirmed to be correct, the positive and negative of the battery pack are connected with the charging and discharging equipment in sequence, then a manual maintenance switch is installed, after the charging and discharging equipment is started up and detects that the communication is normal, setting the charging and discharging test steps according to the requirements of specification, starting the charging and discharging test, recording and storing original test data after the charging and discharging are finished, and disassembling the charging and discharging test wire harness according to the SOP operation requirement, packaging and marking the battery pack which is subjected to EOL offline detection, and transferring the battery pack to a delivery area.
Among the prior art to the test of battery package all through artifical test completion, artifical test often can cause measuring error big, and measurement of efficiency is low, and the cost of labor is high, and the manual record test data of staff, unable automatic production electronic document record is unfavorable for the later stage to looking over of data.
SUMMERY OF THE UTILITY MODEL
The utility model provides a battery package test system can the automatic test result that generates the battery package, need not the manual test battery package of staff, has improved the efficiency of software testing of battery package.
The utility model provides a battery package test system, include: the device comprises a parameter detection circuit, a voltage-withstanding detection circuit, a communication detection circuit, a charge-discharge detection circuit and a processing circuit;
the processing circuit is respectively connected with the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit and the charging and discharging detection circuit;
the parameter detection circuit is used for detecting the voltage and the internal resistance of the battery pack and outputting a first signal and a second signal to the processing circuit according to the detection result;
the withstand voltage detection circuit is used for detecting the withstand voltage of the battery pack and the insulation impedance of the battery pack and outputting a third signal and a fourth signal to the processing circuit according to the detection result;
the communication detection circuit is used for detecting the communication condition between the battery pack and the BMS and outputting a fifth signal to the processing circuit according to the detection result;
the charging and discharging detection circuit is used for carrying out charging and discharging tests on the battery pack and outputting a sixth signal to the processing circuit according to a test result;
the processing circuit is configured to compare the first signal, the second signal, the third signal, the fourth signal, the fifth signal, and the sixth signal with corresponding standard signals, respectively, and output a comparison result.
Optionally, the processing circuit is further configured to control working states of the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit, and the charge/discharge detection circuit.
Optionally, the battery pack testing system provided by the utility model further comprises a communication testing harness and a voltage withstanding testing harness;
the battery pack is respectively connected with one end of the communication test wiring harness and one end of the voltage-withstanding test wiring harness, and the other end of the communication test wiring harness is connected with the communication test circuit; and the other end of the voltage-withstanding test wire harness is connected with the voltage-withstanding test circuit.
Optionally, the utility model provides a battery package test system still includes the scanning module, the scanning module is used for scanning the code on the battery package, and will the code is sent for processing circuit.
Optionally, the utility model provides a battery package test system still includes storage module, storage module is used for the storage first signal the second signal the third signal the fourth signal the fifth signal with the sixth signal.
Optionally, the storage module is further configured to store the code and the test time of the battery pack.
Optionally, the utility model provides a battery package test system still includes display module, display module is used for showing the first signal, second signal, third signal, fourth signal of battery package the fifth signal the sixth signal with the comparison result.
Optionally, the utility model provides a battery package test system still includes power module, power module is used for doing parameter detection circuitry withstand voltage detection circuitry communication detection circuitry charge-discharge detection circuitry processing circuit with the display module power supply.
Optionally, the processing circuit further includes an alarm unit, and the processing circuit is configured to start the alarm unit when detecting a battery pack with an abnormal signal.
Optionally, the alarm unit includes a signal lamp, and the signal lamp is turned on when the alarm unit is started.
The embodiment of the utility model provides a battery package test system passes through voltage, internal resistance, withstand voltage, insulation impedance, communication situation and the charge-discharge situation that parameter detection circuit, withstand voltage detection circuit, communication detection circuit and charge-discharge detection circuit detected the battery package respectively to with detected signal transmission give processing circuit, processing circuit carries out the comparison with the standard signal who corresponds with the test signal who receives, the automatic test result that generates. The utility model provides a battery package test system can the automatic test result that generates the battery package, need not the manual test battery package of staff, has improved the efficiency of software testing of battery package.
Drawings
Fig. 1 is a schematic structural diagram of a battery pack testing system provided by the present invention;
fig. 2 is a schematic structural diagram of another battery pack testing system provided by the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad embodiments of the invention. It should be further noted that, for convenience of description, only some structures, but not all structures, related to the embodiments of the present invention are shown in the drawings.
The utility model provides a battery package test system, figure 1 does the utility model provides a pair of battery package test system's schematic structure diagram, refer to figure 1, this system includes: a parameter detection circuit 110, a withstand voltage detection circuit 120, a communication detection circuit 130, a charge and discharge detection circuit 140 and a processing circuit 150; the parameter detection circuit 110 is configured to detect a voltage and an internal resistance of the battery pack, and output a first signal and a second signal to the processing circuit 150 according to a detection result; the withstand voltage detection circuit 120 is configured to detect a withstand voltage of the battery pack and an insulation resistance of the battery pack, and output a third signal and a fourth signal to the processing circuit 150 according to a detection result; the communication detection circuit 130 is configured to detect a communication status between the battery pack and the BMS, and output a fifth signal to the processing circuit 150 according to a detection result; the charge and discharge detection circuit 140 is configured to perform a charge and discharge test on the battery pack, and output a sixth signal to the processing circuit 150 according to a test result; the processing circuit 150 is configured to compare the first signal, the second signal, the third signal, the fourth signal, the fifth signal, and the sixth signal with the corresponding standard signals, respectively, and output a comparison result.
Specifically, the processing circuit 150 is connected to the parameter detection circuit 110, the withstand voltage detection circuit 120, the communication detection circuit 130, and the charge/discharge detection circuit 140, and is configured to receive the first signal and the second signal transmitted by the parameter detection circuit 110, the third signal and the fourth signal transmitted by the withstand voltage detection circuit 120, the fifth signal transmitted by the communication detection circuit 130, and the sixth signal transmitted by the charge/discharge detection circuit 140, where the first signal reflects a voltage level and the second signal reflects an internal resistance level; illustratively, the greater the voltage, the greater the first signal, the greater the internal resistance, and the greater the second signal. The third signal reflects the withstand voltage value of the battery pack, and the fourth signal reflects the insulation resistance value of the battery pack. The fifth signal may be a first predetermined value when the communication condition between the battery pack and the BMS is good, and may be a second predetermined value when the communication condition is impossible. The sixth signal may include sub-signals respectively reflecting the number of times of charge and discharge and the time of charge and discharge of the battery pack, and the magnitude of each sub-signal may vary according to the number of times of charge and discharge and the time of charge and discharge. The processing circuit 150 may further store the standard signal of the battery pack, and the processing circuit 150 may include a plurality of comparison circuits, where the comparison circuits compare the received first signal, second signal, third signal, fourth signal, fifth signal, and sixth signal with the corresponding standard signals, respectively, and automatically output the comparison result.
Illustratively, the processing circuit 150 includes a first comparison circuit, a second comparison circuit, a third comparison circuit, a fourth comparison circuit, a fifth comparison circuit, and a sixth comparison circuit. The first comparison circuit is used for comparing the first signal with the first standard electric signal and outputting a comparison result, the second comparison circuit is used for comparing the second signal with the second standard electric signal and outputting a comparison result, the third comparison circuit is used for comparing the third signal with the third standard electric signal and outputting a comparison result, the fourth comparison circuit is used for comparing the fourth signal with the fourth standard electric signal and outputting a comparison result, the fifth comparison circuit is used for comparing the fifth signal with the fifth standard electric signal and outputting a comparison result, and the sixth comparison circuit is used for comparing the sixth signal with the sixth standard electric signal and outputting a comparison result. The first standard electrical signal may include an electrical signal corresponding to a standard voltage, the first comparison circuit compares the first signal with the electrical signal corresponding to the standard voltage, and outputs a low level and the detection result is recorded as 0 if the first signal is not within the electrical signal range corresponding to the standard voltage of the battery pack, and outputs a high level and the detection result is recorded as 1 if the first signal value is within the electrical signal range corresponding to the standard voltage of the battery pack. The second standard electrical signal may be an electrical signal corresponding to the standard internal resistance, the second comparing circuit is configured to compare the second signal with the electrical signal corresponding to the standard internal resistance of the battery pack, and output a low level and record a detection result as 0 if the second signal is not within the electrical signal range corresponding to the standard internal resistance of the battery pack, and output a high level and record a detection result as 1 if the second signal is within the electrical signal range corresponding to the standard internal resistance of the battery pack. Note that, it should be noted that the plurality of comparison circuits in the processing circuit according to the embodiment of the present invention belong to the prior art, and the comparison circuit in the prior art can also realize the function of the comparison circuit in the embodiment of the present invention.
The embodiment of the utility model provides a battery package test system passes through the voltage and the internal resistance that parameter detection circuit, withstand voltage detection circuit, communication detection circuit and charge-discharge detection circuit detected the battery package respectively, withstand voltage and insulation impedance, communication situation and charge-discharge situation to send detected signal for processing circuit, processing circuit compares the test signal who receives with the standard signal who corresponds, the automatic test result that generates. The utility model provides a battery package test system can the automatic test result that generates the battery package, need not the manual test battery package of staff, has improved the efficiency of software testing of battery package.
Optionally, the processing circuit is further configured to control the operating states of the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit, and the charge/discharge detection circuit.
Specifically, the processing circuit may control the corresponding circuit to be turned on or turned off by sending corresponding enable signals or switch signals to the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit, and the charge/discharge detection circuit. Different battery packs require different tests. For example, part of the battery packs do not need to detect the withstand voltage of the battery packs and the insulation resistance of the battery packs, and the processing circuit controls the voltage withstanding detection circuit to be not operated when detecting the part of the battery packs. In addition, the processing circuit also controls the operation sequence of the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit and the charge-discharge detection circuit. For example, before the battery pack is subjected to a charge and discharge test, it is required to ensure that the voltage, the internal resistance, the withstand voltage and the communication condition of the battery pack are within a standard range, and then the processing circuit controls the parameter detection circuit, the withstand voltage detection circuit and the communication detection circuit to be operated, compares the first signal, the second signal, the third signal, the fourth signal and the fifth signal with the corresponding standard signals, and controls the operating state of the charge and discharge detection circuit.
Fig. 2 is a schematic structural diagram of another battery pack testing system provided by the present invention, and optionally, referring to fig. 2, the battery pack testing system further includes a communication testing harness 10 and a voltage withstanding testing harness 20; the battery pack is respectively connected with one end of the communication test wiring harness 10 and one end of the voltage-withstanding test wiring harness 20, and the other end of the communication test wiring harness 10 is connected with the communication test circuit 130; the other end of the withstand voltage test harness 20 is connected to a withstand voltage test circuit 120.
Specifically, one end of the communication test harness 10 is connected to the battery pack, and the other end is connected to the communication test circuit 130, and the communication test harness 10 is configured to transmit signals sent by the battery pack and the communication test circuit 130. Different BMS protocols are corresponded to different battery packs, and communication test circuit 130 can adapt to different BMS protocols to guarantee that communication test circuit 130 can test multiple type battery packs.
Optionally, with continued reference to fig. 2, the battery pack testing system further includes a scanning module 160, where the scanning module 160 is configured to scan the codes on the battery pack and send the codes to the processing circuit 150.
Specifically, each battery pack has a different code, the scan module 160 sends the code scanned onto the battery pack to the processing circuit 150, and the processing circuit 150 binds the code of the battery pack with the corresponding test signal.
Optionally, with continued reference to fig. 2, the battery pack testing system further includes a storage module 170, where the storage module 170 is configured to store the first signal, the second signal, the third signal, the fourth signal, the fifth signal, and the sixth signal.
Specifically, the storage module 170 stores a first signal, a second signal, a third signal, a fourth signal, a fifth signal and a sixth signal, so that a worker can conveniently check the test signal of the battery pack subsequently, and the battery pack can be traced easily.
Optionally, the storage module is further configured to store the encoding and testing time of the battery pack.
Specifically, the storage module stores codes and test time of the battery pack, and a worker can inquire test signals and test time of the battery pack by inputting the codes of the battery pack.
Optionally, with continued reference to fig. 2, the battery pack testing system further includes a display module 180, where the display module 180 is configured to display the first signal, the second signal, the third signal, the fourth signal, the fifth signal, the sixth signal, and the comparison result of the battery pack.
Specifically, after the battery pack is tested, the display module 180 displays the test signal and the comparison result of the battery pack, and the worker can know the test condition of the battery pack through the display module 180.
Optionally, with continued reference to fig. 2, the battery pack testing system further includes a power module 190, where the power module 190 is configured to supply power to the parameter detection circuit 110, the withstand voltage detection circuit 120, the communication detection circuit 130, the charge/discharge detection circuit 140, the processing circuit 150, and the display module 180.
For example, when the voltage withstanding performance of the battery pack is tested, an instant voltage needs to be applied to the battery pack, and at this time, the power module 190 needs to provide power for the voltage withstanding detection circuit 120, so that the voltage withstanding detection circuit 120 can test the voltage withstanding performance of the battery pack.
Optionally, the processing circuit further includes an alarm unit, and the alarm unit is activated when the processing circuit detects the battery pack with abnormal signal.
Specifically, after receiving the test signal, the processing circuit compares the test signal with a corresponding standard signal, and when one of the test signals is not within the range of the standard signal, the processing circuit starts the alarm unit.
Optionally, the alarm unit includes a signal lamp, and the signal lamp is turned on when the alarm unit is started.
Specifically, after the alarm unit is started, a signal lamp in the alarm unit flickers to remind a worker that a currently tested battery pack has a fault.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the embodiments of the present invention are not limited to the particular embodiments described herein, but are capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the embodiments of the invention. Therefore, although the embodiments of the present invention have been described in greater detail through the above embodiments, the embodiments of the present invention are not limited to the above embodiments, and many other equivalent embodiments can be included without departing from the concept of the embodiments of the present invention, and the scope of the embodiments of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A battery pack testing system, comprising: the device comprises a parameter detection circuit, a voltage-withstanding detection circuit, a communication detection circuit, a charge-discharge detection circuit and a processing circuit;
the processing circuit is respectively connected with the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit and the charging and discharging detection circuit;
the parameter detection circuit is used for detecting the voltage and the internal resistance of the battery pack and outputting a first signal and a second signal to the processing circuit according to the detection result;
the withstand voltage detection circuit is used for detecting the withstand voltage of the battery pack and the insulation impedance of the battery pack and outputting a third signal and a fourth signal to the processing circuit according to the detection result;
the communication detection circuit is used for detecting the communication condition between the battery pack and the BMS and outputting a fifth signal to the processing circuit according to the detection result;
the charging and discharging detection circuit is used for carrying out charging and discharging tests on the battery pack and outputting a sixth signal to the processing circuit according to a test result;
the processing circuit is configured to compare the first signal, the second signal, the third signal, the fourth signal, the fifth signal, and the sixth signal with corresponding standard signals, respectively, and output a comparison result.
2. The battery pack testing system of claim 1, wherein the processing circuit is further configured to control the operating states of the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit, and the charge-discharge detection circuit.
3. The battery pack testing system of claim 1, further comprising a communication test harness and a withstand voltage test harness;
the battery pack is respectively connected with one end of the communication test wiring harness and one end of the voltage-withstanding test wiring harness, and the other end of the communication test wiring harness is connected with the communication test circuit; and the other end of the voltage-withstanding test wire harness is connected with the voltage-withstanding test circuit.
4. The battery pack testing system of claim 1, further comprising a scanning module configured to scan a code on a battery pack and send the code to the processing circuit.
5. The battery pack test system of claim 4, further comprising a storage module to store the first signal, the second signal, the third signal, the fourth signal, the fifth signal, and the sixth signal.
6. The battery pack testing system of claim 5, wherein the storage module is further configured to store the code and test time of the battery pack.
7. The battery pack testing system of claim 1, further comprising a display module for displaying the first signal, the second signal, the third signal, the fourth signal, the fifth signal, the sixth signal, and the comparison result of the battery pack.
8. The battery pack testing system of claim 7, further comprising a power module configured to supply power to the parameter detection circuit, the withstand voltage detection circuit, the communication detection circuit, the charge-discharge detection circuit, the processing circuit, and the display module.
9. The battery pack testing system of claim 1, wherein the processing circuit further comprises an alarm unit, and the processing circuit is configured to activate the alarm unit when a battery pack with an abnormal signal is detected.
10. The battery pack testing system of claim 9, wherein the alarm unit comprises a signal light that is turned on when the alarm unit is activated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164037.8U CN214503838U (en) | 2020-12-23 | 2020-12-23 | Battery pack testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023164037.8U CN214503838U (en) | 2020-12-23 | 2020-12-23 | Battery pack testing system |
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| Publication Number | Publication Date |
|---|---|
| CN214503838U true CN214503838U (en) | 2021-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023164037.8U Active CN214503838U (en) | 2020-12-23 | 2020-12-23 | Battery pack testing system |
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| CN (1) | CN214503838U (en) |
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- 2020-12-23 CN CN202023164037.8U patent/CN214503838U/en active Active
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