CN114325428A - Retired storage battery monomer charging and discharging testing device - Google Patents
Retired storage battery monomer charging and discharging testing device Download PDFInfo
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- CN114325428A CN114325428A CN202111497125.6A CN202111497125A CN114325428A CN 114325428 A CN114325428 A CN 114325428A CN 202111497125 A CN202111497125 A CN 202111497125A CN 114325428 A CN114325428 A CN 114325428A
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Abstract
本发明公开了一种退役蓄电池单体充放电测试装置，包括开关电源、充放电一体化模块、工控机、电池管理模块、电池管理控制模块，充放电一体化模块的交流端连接交流电网，充放电一体化模块的直流端连接单体电池，电池管理模块采集单体电池的电压和温度，单体电池的电压和温度通过电池管理控制模块传输给工控机，电池管理控制模块采集电池模块总电压、电流和环境温度并传输给工控机，工控机控制充放电一体化模块对电池进行充电或者放电。不用人工监测单体电池的电压、电流和温度，不用人工对单体电池进行充电和放电切换，也便于后期增加监测仪器对蓄电池充放电时的参数比如交流阻抗进行检测，便于批量进行电池的充放电测试和评估。
The invention discloses a charging and discharging test device of a retired battery cell, comprising a switching power supply, a charging and discharging integrated module, an industrial computer, a battery management module, and a battery management control module. The DC terminal of the integrated discharge module is connected to the single battery. The battery management module collects the voltage and temperature of the single battery. The voltage and temperature of the single battery are transmitted to the industrial computer through the battery management control module. The battery management control module collects the total voltage of the battery module. , current and ambient temperature are transmitted to the industrial computer, and the industrial computer controls the charging and discharging integrated module to charge or discharge the battery. There is no need to manually monitor the voltage, current and temperature of the single battery, and there is no need to manually switch between the charging and discharging of the single battery, and it is also convenient to add monitoring instruments later to detect the parameters such as AC impedance during charging and discharging of the battery, which is convenient for batch charging of batteries. Discharge testing and evaluation.
Description
Technical Field
The invention belongs to the technical field of storage batteries, and particularly relates to a device for testing charge and discharge of retired storage battery monomers.
Background
Lithium batteries are favored in the rapidly growing electronics industry due to their advantages of long cycle life, high energy density, low environmental pollution, high output voltage, etc., and have been widely used in recent years in electric vehicles. When the power battery capacity declines to 80% of its rated capacity, it is decommissioned from the electric vehicle. The eliminated lithium iron phosphate power battery can not reach the use standard of automobiles, but can be completely qualified in other occasions with lower requirements. The lithium battery decommissioned from the electric automobile needs to be determined whether to be reused and how to be used after performance evaluation, and during evaluation, the storage battery needs to be charged and discharged.
Disclosure of Invention
Based on the defects in the prior art mentioned in the background art, the invention provides the device for testing the charge and discharge of the retired storage battery monomer, which can automatically test the charge and discharge of the retired storage battery.
The invention overcomes the technical problems by adopting the following technical scheme, and specifically comprises the following steps:
the utility model provides a retired battery monomer charge-discharge testing arrangement, testing arrangement includes: switching power supply, charge-discharge integration module, the industrial computer, battery management module, battery management control module, switching power supply is used for the industrial computer, battery management module, battery management control module supplies power, alternating current network is connected to the exchange end of charge-discharge integration module, single battery is connected to the direct current end of charge-discharge integration module, battery management module gathers single battery's voltage and temperature, single battery's voltage and temperature pass through battery management control module and transmit for the industrial computer, battery management control module gathers battery module total voltage, electric current and ambient temperature transmit for the industrial computer, industrial computer control charge-discharge integration module charges or discharges the battery.
Furthermore, the alternating current end of the charging and discharging integrated module is connected with an alternating current power grid through a switch, and the positive electrode and the negative electrode of the direct current end of the charging and discharging integrated module are connected with the single batteries through circuit breakers, so that operators are prevented from getting electric shock.
Furthermore, a contactor is connected between the positive electrode and the negative electrode of the direct current end of the charging and discharging integrated module and the positive electrode and the negative electrode of the single battery respectively, so that the single battery and a loop of the charging and discharging integrated module are thoroughly disconnected during the replacement of the single battery.
Further, the contactor is a contactor with a contact feedback function, the battery management control module is connected with the contactor feedback function, the battery management control module is connected with a warning lamp, and when the contactor is not completely disconnected, the warning lamp is turned on to remind that a battery loop is closed and the battery cannot be replaced.
Furthermore, the battery management control module is connected with a contactor driver, and the battery management module drives and controls the disconnection and the connection of the contactor according to an instruction sent by the industrial personal computer, so that the battery is convenient to replace.
Furthermore, an emergency stop button is connected to the contactor driver, so that the contactor can be conveniently manually disconnected, and a battery loop can be cut off.
Furthermore, a fuse is connected between the positive electrode of the direct current end of the charging and discharging integrated module and the positive electrode of the single battery.
Furthermore, a milliohm shunt is connected between the negative electrode of the direct current end of the charging and discharging integrated module and the negative electrode of the single battery and used for collecting current, the battery management module is connected with a thermosensitive sensor, the thermosensitive sensor is a thermistor of a negative temperature system, and the temperature of the single battery is collected through the thermosensitive sensor.
Compared with the prior art, the retired storage battery monomer charging and discharging testing device provided by the invention has the following beneficial effects:
the invention provides a retired storage battery monomer charge-discharge testing device, wherein a switching power supply supplies power to an industrial personal computer, a battery management module and a battery management control module, an alternating current end of the charge-discharge integrated module is connected with an alternating current power grid, a direct current end of the charge-discharge integrated module is connected with a monomer battery, the battery management module collects the voltage and the temperature of the monomer battery, the voltage and the temperature of the monomer battery are transmitted to the industrial personal computer through the battery management control module, the battery management control module collects the total voltage, the current and the ambient temperature of the battery module and transmits the total voltage, the current and the ambient temperature to the industrial personal computer, the industrial personal computer controls the charge-discharge integrated module to charge or discharge the battery, the voltage, the current and the temperature of the monomer battery are not monitored manually, the monomer battery is not switched between charging and discharging without manually, and a monitoring instrument is conveniently added in a later period to detect parameters such as alternating current impedance when the storage battery is charged and discharged, the battery charging and discharging test and evaluation can be conveniently carried out in batch.
Drawings
Fig. 1 is an electrical schematic diagram of a retired battery cell charge and discharge testing device provided by the invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, fig. 1 is an electrical schematic diagram of a retired battery cell charge and discharge testing apparatus provided by the present invention, which includes a switching power supply, a charge and discharge integrated module, an industrial personal computer, and a battery management module, battery management control module, switching power supply is used for giving the industrial computer, battery management module, battery management control module supplies power, alternating current electric network is connected to the interchange end of charge-discharge integration module, the battery cell is connected to the direct current end of charge-discharge integration module, battery management module gathers battery cell's voltage and temperature, battery cell's voltage and temperature are passed through battery management control module and are transmitted for the industrial computer, battery management control module gathers battery module total voltage, electric current and ambient temperature transmit for the industrial computer, the industrial computer control charge-discharge integration module charges or discharges the battery.
Specifically, the charging and discharging integrated module is a four-quadrant operating converter with a controllable alternating current side and a controllable direct current side, can realize alternating current and direct current bidirectional conversion of electric energy, can realize bidirectional energy transfer between a direct current battery and an alternating current power grid of the battery energy storage system, and realizes charging and discharging management of the battery through a control strategy. The charging degree and the discharging degree can be selected by an operator, and various modes of the charging and discharging instructions can be modified by the industrial personal computer. The grid-connected charging mode comprises constant current charging, constant voltage charging, constant power charging and the like, and the grid-connected discharging mode comprises constant current discharging, voltage limiting discharging, constant power discharging and the like.
In some preferred embodiments, the ac terminal of the charge and discharge integrated module is connected to an ac power grid through a switch, and the positive and negative terminals of the dc terminal of the charge and discharge integrated module are connected to the single battery through a breaker, so as to prevent an operator from getting an electric shock.
Furthermore, a contactor is connected between the positive electrode and the negative electrode of the direct current end of the charging and discharging integrated module and the positive electrode and the negative electrode of the single battery respectively, so that the circuit of the single battery and the charging and discharging integrated module is thoroughly disconnected during the replacement of the single battery, and the safety of operators is protected.
Preferably, the contactor is a contactor with contact feedback, the battery management control module is connected with the contactor feedback, the battery management control module is connected with a warning lamp, and when the contactor is not completely disconnected, the warning lamp is turned on to remind that a battery loop is closed and the battery cannot be replaced.
In order to change the battery when needing, contactor can automatic disconnection, need not artifical disconnection, and battery management control module is connected with the contactor drive, and the disconnection and the closure of contactor are controlled through the contactor drive to battery management module according to the instruction that the industrial computer sent, are convenient for change the battery.
Preferably, the contactor drive is connected with an emergency stop button, so that the contactor can be conveniently and manually disconnected, a battery loop is cut off, and the working condition that the contactor cannot be automatically disconnected due to circuit faults is met.
Preferably, a fuse is connected between the positive electrode of the direct current end of the charging and discharging integrated module and the positive electrode of the single battery to protect a circuit.
In some preferred embodiments, a milliohm shunt is connected between the negative electrode of the direct current end of the charging and discharging integrated module and the negative electrode of the single battery, the milliohm shunt is used for collecting current, the current collecting precision can reach 5 per thousand, the battery management module is connected with a thermosensitive sensor, the thermosensitive sensor is a thermistor of a negative temperature system, the temperature of the single battery is collected through the thermosensitive sensor, and the temperature collecting precision reaches +/-0.5 ℃.
The invention provides a retired storage battery monomer charging and discharging test device which comprises a switch power supply, a charging and discharging integrated module, an industrial personal computer, a battery management module and a battery management control module, wherein the switch power supply is used for supplying power to the industrial personal computer, the battery management module and the battery management control module, the alternating current end of the charging and discharging integrated module is connected with an alternating current power grid, the direct current end of the charging and discharging integrated module is connected with a monomer battery, the battery management module is used for collecting the voltage and the temperature of the monomer battery, the voltage and the temperature of the monomer battery are transmitted to the industrial personal computer through the battery management control module, the battery management control module is used for collecting the total voltage, the current and the ambient temperature of the battery module and transmitting the total voltage, the current and the ambient temperature to the industrial personal computer, and the industrial personal computer is used for controlling the charging and discharging integrated module to charge or discharge the battery. The voltage, the current and the temperature of the single battery are not monitored manually, the single battery is not charged and discharged manually, parameters such as alternating current impedance are detected when the monitoring instrument is added to charge and discharge the storage battery at the later stage, and batch charging and discharging test and evaluation of the battery are facilitated.
The foregoing is merely illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary. But all changes which come within the scope of the invention are intended to be embraced therein.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111497125.6A CN114325428A (en) | 2021-12-09 | 2021-12-09 | Retired storage battery monomer charging and discharging testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111497125.6A CN114325428A (en) | 2021-12-09 | 2021-12-09 | Retired storage battery monomer charging and discharging testing device |
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| CN114325428A true CN114325428A (en) | 2022-04-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115480168A (en) * | 2022-09-28 | 2022-12-16 | 江苏海基新能源股份有限公司 | Method for testing normal-temperature cycle of lithium iron phosphate battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN211217608U (en) * | 2019-12-18 | 2020-08-11 | 杭州科工电子科技有限公司 | Rapid sorting device for retired power batteries |
| CN211266507U (en) * | 2019-11-06 | 2020-08-14 | 安徽瑞赛克再生资源技术股份有限公司 | Portable power supply based on retired power battery module |
| CN212967804U (en) * | 2020-09-11 | 2021-04-13 | 上汽通用五菱汽车股份有限公司 | Retired power battery management system |
| CN113019964A (en) * | 2019-12-09 | 2021-06-25 | 杭州科工电子科技有限公司 | System and method for quickly sorting retired power batteries |
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2021
- 2021-12-09 CN CN202111497125.6A patent/CN114325428A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211266507U (en) * | 2019-11-06 | 2020-08-14 | 安徽瑞赛克再生资源技术股份有限公司 | Portable power supply based on retired power battery module |
| CN113019964A (en) * | 2019-12-09 | 2021-06-25 | 杭州科工电子科技有限公司 | System and method for quickly sorting retired power batteries |
| CN211217608U (en) * | 2019-12-18 | 2020-08-11 | 杭州科工电子科技有限公司 | Rapid sorting device for retired power batteries |
| CN212967804U (en) * | 2020-09-11 | 2021-04-13 | 上汽通用五菱汽车股份有限公司 | Retired power battery management system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115480168A (en) * | 2022-09-28 | 2022-12-16 | 江苏海基新能源股份有限公司 | Method for testing normal-temperature cycle of lithium iron phosphate battery |
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Application publication date: 20220412 |