WO2014012211A1 - Battery charging and discharging device and battery charging and discharging system - Google Patents

Battery charging and discharging device and battery charging and discharging system Download PDF

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WO2014012211A1
WO2014012211A1 PCT/CN2012/078719 CN2012078719W WO2014012211A1 WO 2014012211 A1 WO2014012211 A1 WO 2014012211A1 CN 2012078719 W CN2012078719 W CN 2012078719W WO 2014012211 A1 WO2014012211 A1 WO 2014012211A1
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charging
discharge
battery
discharging
signal
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PCT/CN2012/078719
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French (fr)
Chinese (zh)
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朱建华
秦章
童菊芳
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深圳市安能能源技术有限公司
安徽动力源科技有限公司
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Priority to PCT/CN2012/078719 priority Critical patent/WO2014012211A1/en
Publication of WO2014012211A1 publication Critical patent/WO2014012211A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

A battery charging and discharging device and a battery charging and discharging system. The battery charging and discharging system comprises a charging power supply, at least two battery charging and discharging devices which are connected to each other in parallel, a feedback device and a reference output device. The battery charging and discharging device and the battery charging and discharging system can automatically control the charging and discharging current, and increase the utilization rate of equipment.

Description

电池充放电装置及电池充放电系统  Battery charge and discharge device and battery charge and discharge system 技术领域Technical field
本发明涉及电池制作领域，特别是涉及一种可自动控制充放电电流的电池充放电装置及电池充放电系统。The invention relates to the field of battery manufacturing, in particular to a battery charging and discharging device and a battery charging and discharging system capable of automatically controlling a charging and discharging current.
背景技术Background technique
电池在生产过程中需要对其进行一系列的充放电工作，使之形成具有电化学特性的正负极，这一过程称为电池的化成。电池的化成以及后续生产中电池的充电和放电操作都需要使用相应的电池充放电装置。随着动力汽车、大功率存储设备的发展，再加上锂电池技术的进步，电池的容量越来越大。这样对电池充放电装置的恒流充放电电流值的要求也越来越高。In the production process, the battery needs to perform a series of charging and discharging work to form a positive and negative electrode with electrochemical characteristics. This process is called the formation of a battery. The formation of batteries and the charging and discharging operations of batteries in subsequent production require the use of corresponding battery charging and discharging devices. With the development of power vehicles, high-power storage devices, and the advancement of lithium battery technology, the capacity of batteries is increasing. Thus, the requirements for the constant current charge and discharge current value of the battery charging and discharging device are also increasing.
具体而言，电池规模涵盖的范围越来越宽，从几百毫安培小时至上千安培小时不等。电池容量越大，电池充放电装置需要输出的电流也越大。对于大容量电池，使用小电流的电池充放电装置会造成充放电时间的延长，生产效率的降低。而对于小容量电池，虽然大电流的电池充放电装置也可以输出小电流给其充放电，但会造成其输出能力的浪费。另外，由于大电流的电池充放电装置的额定电流值较高，造成电流分辨率下降，在小电流下工作时的精度降低。因此使用大电流的电池充放电装置对小容量电池进行充放电也是不合适的。In particular, battery scales cover a wider range, ranging from a few hundred milliampere hours to thousands of ampere hours. The larger the battery capacity, the larger the current that the battery charge and discharge device needs to output. For large-capacity batteries, a battery charging and discharging device using a small current causes an increase in charging and discharging time and a decrease in production efficiency. For a small-capacity battery, although a high-current battery charge and discharge device can also output a small current to charge and discharge it, it will cause a waste of its output capability. In addition, since the rated current value of the battery charging and discharging device of a large current is high, the current resolution is lowered, and the accuracy when operating at a small current is lowered. Therefore, it is not appropriate to charge and discharge a small-capacity battery using a battery charging and discharging device of a large current.
现有的电池充放电装置都是一个装置包含有一个或多个充放电模块。每个充放电模块的输出电流对应其生产的电池的规格，每个充放电模块之间相互不关联，用于生产不同的单体电池。如电池生产厂家生产20安培小时的电池，使用0.5C（这里C表示充电电池的充电率）的电流对电池进行充放电处理，则需要采购单模块规格为20*0.5=10A的电池充放电装置。如电池生产厂家生产40安培小时的电池，则需要采购单模块规格为40*0.5=20A的电池充放电装置。这样，电池生产厂家为了生产不同规格的电池，需要采购不同规格的电池充放电装置，造成设备利用率低以及电池制作成本高等问题。Existing battery charging and discharging devices are all one device that includes one or more charging and discharging modules. The output current of each charge and discharge module corresponds to the specifications of the battery it produces. Each charge and discharge module is not associated with each other and is used to produce different single cells. If the battery manufacturer produces a battery of 20 ampere hours and uses a current of 0.5C (where C indicates the charging rate of the rechargeable battery) to charge and discharge the battery, it is necessary to purchase a battery charging and discharging device with a module size of 20*0.5=10A. . If the battery manufacturer produces a battery of 40 ampere hours, it is necessary to purchase a battery charging and discharging device with a module size of 40*0.5=20A. In this way, in order to produce batteries of different specifications, battery manufacturers need to purchase battery charging and discharging devices of different specifications, resulting in low equipment utilization rate and high battery manufacturing cost.
故，有必要提供一种电池充放电装置及电池充放电系统，以解决现有技术所存在的问题。Therefore, it is necessary to provide a battery charging and discharging device and a battery charging and discharging system to solve the problems existing in the prior art.
技术问题technical problem
本发明的目的在于提供一种自动控制充放电电流，提高设备利用率的电池充放电装置及电池充放电系统，解决了现有的电池充放电装置及电池充放电系统的设备利用率低以及电池制作成本较高的技术问题。 The object of the present invention is to provide a battery charging and discharging device and a battery charging and discharging system for automatically controlling the charging and discharging current and improving the utilization rate of the device, and solving the low battery utilization rate and the battery of the existing battery charging and discharging device and the battery charging and discharging system. Making technical problems with higher costs.
技术解决方案Technical solution
本发明涉及一种电池充放电系统，其包括：The invention relates to a battery charging and discharging system, comprising:
充电电源；Charger;
至少两个相互并联的电池充放电装置； At least two battery charging and discharging devices connected in parallel with each other;
反馈装置，用于反馈所述电池充放电装置的连接状况及参数；以及a feedback device for feeding back connection status and parameters of the battery charging and discharging device;
基准输出装置，用于根据所述反馈装置的反馈数据，输出至少两个基准充电信号和至少两个基准放电信号；a reference output device, configured to output at least two reference charging signals and at least two reference discharge signals according to feedback data of the feedback device;
所述电池充放电装置包括：The battery charging and discharging device includes:
充放电模块，包括：Charge and discharge modules, including:
充电单元，用于所述至少两个相互并联的电池充放电装置同时对电池进行充电处理；a charging unit, configured to charge the battery at the same time for the at least two battery charging and discharging devices connected in parallel;
放电单元，用于所述至少两个相互并联的电池充放电装置同时对所述电池进行放电处理；以及a discharge unit for simultaneously discharging the battery by the at least two battery charging and discharging devices connected in parallel; and
采样单元，用于所述至少两个相互并联的电池充放电装置同时获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit for simultaneously acquiring the charging sampling signal of the charging unit and the discharging sampling signal of the discharging unit by the at least two battery charging and discharging devices connected in parallel;
充电控制模块，用于根据所述充电采样信号和相应的所述基准充电信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal and the corresponding reference charging signal;
放电控制模块，用于根据所述放电采样信号和相应的所述基准放电信号，控制所述放电单元的放电电流；a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal and the corresponding reference discharge signal;
所述电池充放电系统的充电电流为所述至少两个相互并联的电池充放电装置的充电单元的充电电流之和；所述电池充放电系统的放电电流为所述至少两个相互并联的电池充放电装置的放电单元的放电电流之和；The charging current of the battery charging and discharging system is the sum of charging currents of the charging units of the at least two battery charging and discharging devices connected in parallel; the discharging current of the battery charging and discharging system is the at least two batteries connected in parallel with each other The sum of the discharge currents of the discharge cells of the charge and discharge device;
所述基准充电信号与所述充电控制模块一一对应，所述基准放电信号与所述放电控制模块一一对应。The reference charging signal is in one-to-one correspondence with the charging control module, and the reference discharging signal is in one-to-one correspondence with the discharging control module.
在本发明所述的电池充放电系统中，所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。In the battery charging and discharging system of the present invention, the charging unit includes a charging switch tube, and a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube and a charging power source Connected, the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
在本发明所述的电池充放电系统中，所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。In the battery charging and discharging system of the present invention, the charging unit further includes an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
在本发明所述的电池充放电系统中，所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。In the battery charging and discharging system of the present invention, the discharge unit includes a discharge switch tube, and a control end of the discharge switch tube is connected to an output of the discharge control module, and an input end of the discharge switch tube passes through the The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
在本发明所述的电池充放电系统中，所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。In the battery charging and discharging system of the present invention, the discharge unit further includes an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse diode The negative pole is connected to the input end of the discharge switch tube.
在本发明所述的电池充放电系统中，所述充电控制模块包括：In the battery charging and discharging system of the present invention, the charging control module includes:
充电信号放大电路，用于接收并放大所述充电采样信号；以及a charging signal amplifying circuit for receiving and amplifying the charged sampling signal;
充电比较电路，用于根据所述充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号；a charging comparison circuit, configured to output a charging current control signal according to an output signal of the charging signal amplifying circuit and a reference charging signal;
所述放电控制模块包括：The discharge control module includes:
放电信号放大电路，用于接收并放大所述放电采样信号；以及a discharge signal amplifying circuit for receiving and amplifying the discharge sampling signal;
放电比较电路，用于根据所述放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。And a discharge comparing circuit for outputting a discharge current control signal according to an output signal of the discharge signal amplifying circuit and a reference discharge signal.
本发明还涉及一种电池充放电系统，其包括：The invention also relates to a battery charging and discharging system, comprising:
充电电源；至少两个相互并联的电池充放电装置；Charging power supply; at least two battery charging and discharging devices connected in parallel;
反馈装置，用于反馈所述电池充放电装置的连接状况及参数；以及a feedback device for feeding back connection status and parameters of the battery charging and discharging device;
基准输出装置，用于根据所述反馈装置的反馈数据，输出至少两个基准充电信号和至少两个基准放电信号。And a reference output device, configured to output at least two reference charging signals and at least two reference discharging signals according to the feedback data of the feedback device.
在本发明所述的电池充放电系统中，所述电池充放电装置包括：In the battery charging and discharging system of the present invention, the battery charging and discharging device includes:
充放电模块，包括：Charge and discharge modules, including:
充电单元，用于所述至少两个相互并联的电池充放电装置同时对电池进行充电处理；a charging unit, configured to charge the battery at the same time for the at least two battery charging and discharging devices connected in parallel;
放电单元，用于所述至少两个相互并联的电池充放电装置同时对所述电池进行放电处理；以及a discharge unit for simultaneously discharging the battery by the at least two battery charging and discharging devices connected in parallel; and
采样单元，用于所述至少两个相互并联的电池充放电装置同时获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit for simultaneously acquiring the charging sampling signal of the charging unit and the discharging sampling signal of the discharging unit by the at least two battery charging and discharging devices connected in parallel;
充电控制模块，用于根据所述充电采样信号和相应的所述基准充电信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal and the corresponding reference charging signal;
放电控制模块，用于根据所述放电采样信号和相应的所述基准放电信号，控制所述放电单元的放电电流。And a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal and the corresponding reference discharge signal.
在本发明所述的电池充放电系统中，所述电池充放电系统的充电电流为所述至少两个相互并联的电池充放电装置的充电单元的充电电流之和；所述电池充放电系统的放电电流为所述至少两个相互并联的电池充放电装置的放电单元的放电电流之和。In the battery charging and discharging system of the present invention, the charging current of the battery charging and discharging system is the sum of charging currents of the charging units of the at least two battery charging and discharging devices connected in parallel; the battery charging and discharging system The discharge current is the sum of the discharge currents of the discharge cells of the at least two battery charging and discharging devices connected in parallel.
在本发明所述的电池充放电系统中，所述基准充电信号与所述充电控制模块一一对应，所述基准放电信号与所述放电控制模块一一对应。In the battery charging and discharging system of the present invention, the reference charging signal is in one-to-one correspondence with the charging control module, and the reference discharging signal is in one-to-one correspondence with the discharging control module.
在本发明所述的电池充放电系统中，所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。In the battery charging and discharging system of the present invention, the charging unit includes a charging switch tube, and a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube and a charging power source Connected, the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
在本发明所述的电池充放电系统中，所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。In the battery charging and discharging system of the present invention, the charging unit further includes an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
在本发明所述的电池充放电系统中，所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。In the battery charging and discharging system of the present invention, the discharge unit includes a discharge switch tube, and a control end of the discharge switch tube is connected to an output of the discharge control module, and an input end of the discharge switch tube passes through the The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
在本发明所述的电池充放电系统中，所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。In the battery charging and discharging system of the present invention, the discharge unit further includes an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse diode The negative pole is connected to the input end of the discharge switch tube.
在本发明所述的电池充放电系统中，所述充电控制模块包括：充电信号放大电路，用于接收并放大所述充电采样信号；以及充电比较电路，用于根据所述充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号；所述放电控制模块包括：放电信号放大电路，用于接收并放大所述放电采样信号；以及放电比较电路，用于根据所述放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。In the battery charging and discharging system of the present invention, the charging control module includes: a charging signal amplifying circuit for receiving and amplifying the charging sampling signal; and a charging comparison circuit for amplifying the circuit according to the charging signal And outputting a charging current control signal; the discharge control module includes: a discharge signal amplifying circuit for receiving and amplifying the discharge sampling signal; and a discharge comparing circuit for amplifying the circuit according to the discharging signal The output signal and the reference discharge signal output a discharge current control signal.
本发明还涉及一种电池充放电装置，其包括：The invention also relates to a battery charging and discharging device, comprising:
充放电模块，包括：Charge and discharge modules, including:
充电单元，用于对电池进行充电处理； a charging unit for charging the battery;
放电单元，用于对所述电池进行放电处理；以及 a discharge unit for discharging the battery; and
采样单元，用于获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit, configured to acquire a charging sampling signal of the charging unit and a discharging sampling signal of the discharging unit;
充电控制模块，用于根据所述充电采样信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal;
放电控制模块，用于根据所述放电采样信号，控制所述放电单元的放电电流。And a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal.
在本发明所述的电池充放电装置中，所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。In the battery charging and discharging device of the present invention, the charging unit includes a charging switch tube, and a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube and a charging power source Connected, the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
在本发明所述的电池充放电装置中，所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。In the battery charging and discharging device of the present invention, the charging unit further includes an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
在本发明所述的电池充放电装置中，所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。In the battery charging and discharging device of the present invention, the discharge unit includes a discharge switch tube, and a control end of the discharge switch tube is connected to an output of the discharge control module, and an input end of the discharge switch tube passes through The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
在本发明所述的电池充放电装置中，所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。In the battery charging and discharging device of the present invention, the discharge unit further includes an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse diode The negative pole is connected to the input end of the discharge switch tube.
有益效果 Beneficial effect
相较于现有的电池充放电装置及电池充放电系统，本发明的电池充放电装置及电池充放电系统可自动控制充放电电流、提高了设备的利用率，解决了现有的电池充放电装置及电池充放电系统的设备利用率低以及电池制作成本较高的技术问题。Compared with the existing battery charging and discharging device and the battery charging and discharging system, the battery charging and discharging device and the battery charging and discharging system of the invention can automatically control the charging and discharging current, improve the utilization rate of the device, and solve the existing battery charging and discharging. The technical problems of low equipment utilization and high battery manufacturing cost of the device and the battery charging and discharging system.
附图说明DRAWINGS
图1为本发明的电池充放电装置的优选实施例的结构示意图；1 is a schematic structural view of a preferred embodiment of a battery charging and discharging device of the present invention;
图2为本发明的电池充放电装置的优选实施例的充放电模块的电路结构图；2 is a circuit configuration diagram of a charge and discharge module of a preferred embodiment of the battery charging and discharging device of the present invention;
图3为本发明的电池充放电装置的优选实施例的充电控制模块的电路结构图；3 is a circuit configuration diagram of a charging control module of a preferred embodiment of the battery charging and discharging device of the present invention;
图4为本发明的电池充放电装置的优选实施例的放电控制模块的电路结构图；4 is a circuit configuration diagram of a discharge control module of a preferred embodiment of the battery charging and discharging device of the present invention;
图5为本发明的电池充放电系统的优选实施例的结构示意图；5 is a schematic structural view of a preferred embodiment of a battery charging and discharging system of the present invention;
图6为本发明的电池充放电系统的优选实施例的电路结构图；6 is a circuit configuration diagram of a preferred embodiment of a battery charging and discharging system of the present invention;
其中，附图标记说明如下：Among them, the reference numerals are as follows:
1、充放电模块； 1. Charge and discharge module;
11、充电单元； 11. Charging unit;
12、放电单元； 12. Discharge unit;
13、采样单元； 13. Sampling unit;
2、充电控制模块； 2. Charge control module;
21、充电信号放大电路；21. A charging signal amplifying circuit;
22、充电比较电路； 22, charging comparison circuit;
3、放电控制模块；3. Discharge control module;
31、放电信号放大电路；31. A discharge signal amplifying circuit;
32、放电比较电路；32. A discharge comparison circuit;
10、充电电源；10, charging power supply;
20、基准输出装置；20. Reference output device;
30、电池充放电装置；30, battery charging and discharging device;
40、反馈装置。40. Feedback device.
本发明的最佳实施方式BEST MODE FOR CARRYING OUT THE INVENTION
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。The following description of the various embodiments is provided to illustrate the specific embodiments of the invention. The directional terms mentioned in the present invention, such as "upper", "lower", "before", "after", "left", "right", "inside", "outside", "side", etc., are merely references. Attach the direction of the drawing. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention.
在图中，结构相似的单元是以相同标号表示。In the figures, structurally similar elements are denoted by the same reference numerals.
请参照图1，图1为本发明的电池充放电装置的优选实施例的结构示意图。该电池充放电装置包括充放电模块1、充电控制模块2以及放电控制模块3，其中充放电模块1包括充电单元11、放电单元12以及采样单元13，充电单元11用于对电池进行充电处理，放电单元12用于对电池进行放电处理，采样单元13用于获取充电单元11的充电采样信号以及放电单元12的放电采样信号；充电控制模块2用于根据充电采样信号控制充电单元11的充电电流；放电控制模块3用于根据放电采样信号控制放电单元12的放电电流。Please refer to FIG. 1. FIG. 1 is a schematic structural view of a preferred embodiment of a battery charging and discharging device of the present invention. The battery charging and discharging device includes a charging and discharging module 1, a charging control module 2, and a discharging control module 3. The charging and discharging module 1 includes a charging unit 11, a discharging unit 12, and a sampling unit 13, and the charging unit 11 is configured to charge the battery. The discharge unit 12 is configured to perform discharge processing on the battery, the sampling unit 13 is configured to acquire the charging sampling signal of the charging unit 11 and the discharging sampling signal of the discharging unit 12; and the charging control module 2 is configured to control the charging current of the charging unit 11 according to the charging sampling signal. The discharge control module 3 is for controlling the discharge current of the discharge unit 12 in accordance with the discharge sampling signal.
请参照图2，图2为本发明的电池充放电装置的优选实施例的充放电模块的电路结构图。Please refer to FIG. 2. FIG. 2 is a circuit diagram of a charging and discharging module of a preferred embodiment of the battery charging and discharging device of the present invention.
其中提供充放电模块的能量来源为充电电源（图中未示出），VIN+为充电电源的正极和和VIN-为充电电源的负极，BAT为待进行充放电处理的电池。The energy source for providing the charge and discharge module is a charging power source (not shown), VIN+ is the positive pole of the charging power source and VIN- is the negative pole of the charging power source, and BAT is the battery to be charged and discharged.
充放电模块1的充电单元11包括充电开关管Q1，充电开关管Q1的控制端（栅极）与充电控制模块2的输出CHA_DRV连接，充电开关管Q1的输入端（源极）与充电电源的正极连接，充电开关管Q1的输出端（漏极）通过采样单元13与电池BAT的正极连接。The charging unit 11 of the charging and discharging module 1 includes a charging switch tube Q1, and the control end (gate) of the charging switch tube Q1 is connected to the output CHA_DRV of the charging control module 2, and the input end (source) of the charging switch tube Q1 and the charging power source The positive electrode is connected, and the output terminal (drain) of the charge switch transistor Q1 is connected to the positive electrode of the battery BAT through the sampling unit 13.
充放电模块1的放电单元12包括放电开关管Q2，放电开关管Q2的控制端（栅极）与放电控制模块3的输出DIS_DRV连接，放电开关管Q2的输入端（源极）通过采样单元13与电池BAT的正极连接，放电开关管Q2的输出端（漏极）与电池BAT的负极连接。The discharge unit 12 of the charge and discharge module 1 includes a discharge switch tube Q2. The control end (gate) of the discharge switch tube Q2 is connected to the output DIS_DRV of the discharge control module 3, and the input end (source) of the discharge switch tube Q2 passes through the sampling unit 13. Connected to the positive terminal of the battery BAT, the output terminal (drain) of the discharge switch transistor Q2 is connected to the negative electrode of the battery BAT.
充电单元11还包括防倒流二极管D1，该防倒流二极管D1的正极与充电电源的正极连接，防倒流二极管D1的负极与充电开关管Q1的输入端连接。该防倒流二极管D1可以防止充电电源未工作时，待进行充放电处理的电池BAT的能量倒灌回充电电源，造成待进行充放电处理的电池BAT瞬间大电流放电损伤电池。The charging unit 11 further includes an anti-backflow diode D1. The anode of the anti-backflow diode D1 is connected to the anode of the charging power source, and the cathode of the anti-backflow diode D1 is connected to the input end of the charging switch tube Q1. The anti-backflow diode D1 can prevent the energy of the battery BAT to be charged and discharged from being reversed back to the charging power source when the charging power source is not working, so that the battery BAT to be subjected to the charging and discharging process instantaneously discharges the battery in a large current.
放电单元12还可包括防反接二极管D2，该防反接二极管D2的正极通过采样单元13与电池BAT的正极连接，防反接二极管D2的负极与放电开关管Q2的输入端连接。该防反接二极管D2可防止电池BAT反接时，电池BAT的短接破坏放电开关管Q2和电池BAT。 The discharge unit 12 may further include an anti-reverse diode D2. The anode of the anti-reverse diode D2 is connected to the anode of the battery BAT through the sampling unit 13, and the cathode of the anti-reverse diode D2 is connected to the input end of the discharge switch tube Q2. The anti-reverse diode D2 prevents the short circuit of the battery BAT from damaging the discharge switch tube Q2 and the battery BAT when the battery BAT is reversely connected.
充放电模块1的采样单元13包括采样电阻RS，通过管脚IS+和IS-输出充电采样信号（充电采样电流）反馈给充电控制模块2，输出放电采样信号（放电采样电流）反馈给放电控制模块3。同时还可将充电采样电流和放电采样电流反馈到后台，后台可显示该采样数据以供电池厂家分析该电池的性能。The sampling unit 13 of the charging and discharging module 1 includes a sampling resistor RS, which is fed back to the charging control module 2 through the pin IS+ and the IS-output charging sampling signal (charging sampling current), and the output discharging sampling signal (discharging sampling current) is fed back to the discharging control module. 3. At the same time, the charging sampling current and the discharging sampling current can be fed back to the background, and the sampling data can be displayed in the background for the battery manufacturer to analyze the performance of the battery.
请参照图3，图3为本发明的电池充放电装置的优选实施例的充电控制模块的电路结构图。该充电控制模块2包括充电信号放大电路21以及充电比较电路22，该充电信号放大电路21用于接收并放大充电采样信号，充电比较电路22用于根据充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号。其中管脚IS+和IS-输入充电采样信号，充电信号放大电路21包括运算放大器U1-A、电阻R5、电阻R6、电阻R7以及电阻R8，充电比较电路22包括运算放大器U1-B、电阻R9、电阻R10、电阻R11、电容C1以及电容C2，其中运算放大器U1-B的第一输入端输入充电信号放大电路21的输出信号，运算放大器U1-B的第二输入端输入基准充电信号，运算放大器U1-B的输出与充电单元的充电开关管的控制端连接。Please refer to FIG. 3. FIG. 3 is a circuit structural diagram of a charging control module of a preferred embodiment of the battery charging and discharging device of the present invention. The charging control module 2 includes a charging signal amplifying circuit 21 for receiving and amplifying the charging sampling signal, and a charging comparison circuit 22 for amplifying the output signal of the circuit and the reference charging signal according to the charging signal. , output charging current control signal. The pin IS+ and IS- input charging sampling signals, the charging signal amplifying circuit 21 includes an operational amplifier U1-A, a resistor R5, a resistor R6, a resistor R7 and a resistor R8, and the charging comparison circuit 22 includes an operational amplifier U1-B, a resistor R9, a resistor R10, a resistor R11, a capacitor C1, and a capacitor C2, wherein the first input terminal of the operational amplifier U1-B is input to the output signal of the charging signal amplifying circuit 21, and the second input terminal of the operational amplifier U1-B is input with the reference charging signal, the operational amplifier The output of U1-B is connected to the control terminal of the charging switch of the charging unit.
请参照图4，图4为本发明的电池充放电装置的优选实施例的放电控制模块的电路结构图。该放电控制模块3包括放电信号放大电路31以及放电比较电路32，该放电信号放大电路31用于接收并放大放电采样信号，放电比较电路32用于根据放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。其中管脚IS+和IS-输入放电采样信号，放电信号放大电路31包括运算放大器U2-A、电阻R15、电阻R16、电阻R17以及电阻R18，放电比较电路32包括运算放大器U2-B、电阻R12、电阻R13、电阻R14、电容C3以及电容C4，其中运算放大器U2-B的第一输入端输入放电信号放大电路31的输出信号，运算放大器U2-B的第二输入端输入基准放电信号，运算放大器U2-B的输出与放电单元的放电开关管的控制端连接。Please refer to FIG. 4. FIG. 4 is a circuit structural diagram of a discharge control module of a preferred embodiment of the battery charging and discharging device of the present invention. The discharge control module 3 includes a discharge signal amplifying circuit 31 for receiving and amplifying the discharge sampling signal, and a discharge comparing circuit 32 for amplifying the output signal of the circuit and the reference discharge signal according to the discharge signal. , output discharge current control signal. Wherein the pin IS+ and IS- input discharge sampling signals, the discharge signal amplifying circuit 31 includes an operational amplifier U2-A, a resistor R15, a resistor R16, a resistor R17 and a resistor R18, and the discharge comparing circuit 32 includes an operational amplifier U2-B, a resistor R12, a resistor R13, a resistor R14, a capacitor C3, and a capacitor C4, wherein the first input terminal of the operational amplifier U2-B is input to the output signal of the discharge signal amplifying circuit 31, and the second input terminal of the operational amplifier U2-B is input with the reference discharge signal, the operational amplifier The output of U2-B is connected to the control terminal of the discharge switch of the discharge unit.
请参照图1至图4，本发明的电池充放电装置对待进行充放电处理的电池进行充电时，如充电电流较大，采样单元13的管脚IS+和IS-输出充电采样信号也就较大，经充电信号放大电路21放大该充电采样信号，在充电比较电路22中，放大后的充电采样信号与基准充电信号进行比较，这时放大后的充电采样信号大于基准充电信号，运算放大器U1-B输出低电平，该低电平输入到充电开关管Q1的控制端，使得关闭充电开关管Q1，从而减小了经过充电开关管Q1的充电电流，使之达到与基准充电信号相应的基准充电电流。Referring to FIG. 1 to FIG. 4, when the battery charging and discharging device of the present invention charges a battery to be subjected to charge and discharge processing, if the charging current is large, the pin IS+ and the IS-output charging sampling signal of the sampling unit 13 are larger. The charging signal amplifying circuit 21 amplifies the charging sampling signal. In the charging comparison circuit 22, the amplified charging sampling signal is compared with the reference charging signal. At this time, the amplified charging sampling signal is greater than the reference charging signal, and the operational amplifier U1- B outputs a low level, and the low level is input to the control end of the charging switch tube Q1, so that the charging switch tube Q1 is turned off, thereby reducing the charging current through the charging switch tube Q1 to reach a reference corresponding to the reference charging signal. recharging current.
如充电电流较小，采样单元13的管脚IS+和IS-输出充电采样信号也就较小，经充电信号放大电路21放大该充电采样信号，在充电比较电路22中，放大后的充电采样信号与基准充电信号进行比较，这时放大后的充电采样信号小于基准充电信号，运算放大器U1-B输出高电平，该高电平输入到充电开关管Q1的控制端，使得打开充电开关管Q1，从而增加了经过充电开关管Q1的充电电流，使之达到与基准充电信号相应的基准充电电流。这样通过充电控制模块2实现了对电池充放电装置的充电电流的控制。If the charging current is small, the pin IS+ and the IS-output charging sampling signal of the sampling unit 13 are also small, and the charging sampling signal is amplified by the charging signal amplifying circuit 21, and the amplified charging sampling signal is in the charging comparison circuit 22. Compared with the reference charging signal, when the amplified charging sampling signal is smaller than the reference charging signal, the operational amplifier U1-B outputs a high level, and the high level is input to the control end of the charging switch tube Q1, so that the charging switch tube Q1 is turned on. Therefore, the charging current through the charging switch Q1 is increased to reach the reference charging current corresponding to the reference charging signal. Thus, the control of the charging current of the battery charging and discharging device is realized by the charging control module 2.
本发明的电池充放电装置对待进行充放电处理的电池进行放电时，如放电电流较大，采样单元13的管脚S+和IS-输出放电采样信号也就较大（充电电流方向和放电电流方向相反，放电采样信号和充电采样信号的极性也相反），经放电信号放大电路31放大该放电采样信号，在放电比较电路32中，放大后的放电采样信号与基准放电信号进行比较，这时放大后的放电采样信号大于基准放电信号，运算放大器U2-B输出低电平，该低电平输入到放电开关管Q2的控制端，使得关闭放电开关管Q2，从而减小了经过放电开关管Q2的放电电流，使之达到与基准放电信号相应的基准放电电流。When the battery charging and discharging device of the present invention discharges a battery to be subjected to charge and discharge processing, if the discharge current is large, the pin S+ and the IS-output discharge sampling signal of the sampling unit 13 are large (charge current direction and discharge current direction). On the contrary, the polarity of the discharge sampling signal and the charge sampling signal are also reversed. The discharge sampling signal is amplified by the discharge signal amplifying circuit 31, and the amplified discharge sampling signal is compared with the reference discharge signal in the discharge comparing circuit 32. The amplified discharge sampling signal is greater than the reference discharge signal, the operational amplifier U2-B outputs a low level, and the low level is input to the control end of the discharge switch tube Q2, so that the discharge switch tube Q2 is turned off, thereby reducing the discharge switch tube The discharge current of Q2 is such that it reaches the reference discharge current corresponding to the reference discharge signal.
如放电电流较小，采样单元13的管脚IS+和IS-输出放电采样信号也就较小，经放电信号放大电路31放大该放电采样信号，在放电比较电路32中，放大后的放电采样信号与基准放电信号进行比较，这时放大后的放电采样信号小于基准放电信号，运算放大器U2-B输出高电平，该高电平输入到放电开关管Q2的控制端，使得打开放电开关管Q2，从而增加了经过放电开关管Q2的放电电流，使之达到与基准放电信号相应的基准放电电流。这样通过放电控制模块3实现了对电池充放电装置的放电电流的控制。If the discharge current is small, the pin IS+ and the IS-output discharge sampling signal of the sampling unit 13 are also small, and the discharge sampling signal is amplified by the discharge signal amplifying circuit 31, and the amplified discharge sampling signal is outputted in the discharge comparing circuit 32. Comparing with the reference discharge signal, when the amplified discharge sampling signal is smaller than the reference discharge signal, the operational amplifier U2-B outputs a high level, and the high level is input to the control end of the discharge switch tube Q2, so that the discharge switch tube Q2 is opened. Therefore, the discharge current passing through the discharge switch tube Q2 is increased to reach the reference discharge current corresponding to the reference discharge signal. Thus, the discharge control of the battery charging and discharging device is controlled by the discharge control module 3.
本发明还涉及一种电池充放电系统，如图5和图6所示，图5为本发明的电池充放电系统的优选实施例的结构示意图，图6为本发明的电池充放电系统的优选实施例的电路结构图。电池充放电系统包括充电电源10、基准输出装置20、至少两个相互并联的电池充放电装置30以及反馈装置40。该反馈装置40用于反馈电池充放电装置的连接状况及参数，该基准输出装置20用于根据反馈装置40的反馈数据，输出至少两个基准充电信号和至少两个基准放电信号；该电池充放电装置30包括充放电模块、充电控制模块以及放电控制模块，其中充放电模块包括充电单元、放电单元以及采样单元，充电单元用于对电池进行充电处理，放电单元用于对电池进行放电处理，采样单元用于获取充电单元的充电采样信号以及放电单元的放电采样信号；充电控制模块用于根据充电采样信号控制充电单元的充电电流；放电控制模块用于根据放电采样信号控制放电单元的放电电流。The present invention also relates to a battery charging and discharging system, as shown in FIG. 5 and FIG. 6, FIG. 5 is a schematic structural view of a preferred embodiment of the battery charging and discharging system of the present invention, and FIG. 6 is a preferred embodiment of the battery charging and discharging system of the present invention. A circuit configuration diagram of an embodiment. The battery charging and discharging system includes a charging power source 10, a reference output device 20, at least two battery charging and discharging devices 30 connected in parallel with each other, and a feedback device 40. The feedback device 40 is configured to feed back the connection status and parameters of the battery charging and discharging device, and the reference output device 20 is configured to output at least two reference charging signals and at least two reference discharging signals according to the feedback data of the feedback device 40; The discharge device 30 includes a charge and discharge module, a charge control module, and a discharge control module. The charge and discharge module includes a charging unit, a discharge unit, and a sampling unit. The charging unit is configured to charge the battery, and the discharge unit is configured to discharge the battery. The sampling unit is configured to acquire a charging sampling signal of the charging unit and a discharging sampling signal of the discharging unit; the charging control module is configured to control a charging current of the charging unit according to the charging sampling signal; and the discharging control module is configured to control a discharging current of the discharging unit according to the discharging sampling signal .
充放电模块的充电单元包括充电开关管，充电开关管的控制端与充电控制模块的输出连接，充电开关管的输入端与充电电源10的正极连接，充电开关管的输出端通过采样单元与电池的正极连接。The charging unit of the charging and discharging module comprises a charging switch tube, the control end of the charging switch tube is connected with the output of the charging control module, the input end of the charging switch tube is connected with the positive pole of the charging power source 10, and the output end of the charging switch tube passes the sampling unit and the battery The positive connection.
充电单元还包括防倒流二极管，该防倒流二极管的正极与充电电源10的正极连接，防倒流二极管的负极与充电开关管的输入端连接。该防倒流二极管可以防止充电电源10未工作时，待进行充放电处理的电池的能量倒灌回充电电源，造成待进行充放电处理的电池瞬间大电流放电损伤电池。The charging unit further includes an anti-backflow diode, the anode of the anti-backflow diode is connected to the anode of the charging power source 10, and the anode of the anti-backflow diode is connected to the input end of the charging switch tube. The anti-backflow diode can prevent the energy of the battery to be charged and discharged from being reversed back to the charging power source when the charging power source 10 is not operating, causing the battery to be charged and discharged to instantaneously discharge the battery.
充放电模块的放电单元包括放电开关管，放电开关管的控制端与放电控制模块的输出连接，放电开关管的输入端通过采样单元与电池的正极连接，放电开关管的输出端与电池的负极连接。 The discharge unit of the charge and discharge module comprises a discharge switch tube, and the control end of the discharge switch tube is connected with the output of the discharge control module, and the input end of the discharge switch tube is connected to the positive pole of the battery through the sampling unit, and the output end of the discharge switch tube and the negative pole of the battery connection.
放电单元还可包括防反接二极管，该防反接二极管的正极通过采样单元与电池的正极连接，防反接二极管的负极与放电开关管的输入端连接。该防反接二极管可防止电池反接时，电池的短接破坏放电开关管和电池。The discharge unit may further include an anti-reverse diode, the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the cathode of the anti-reverse diode is connected to the input end of the discharge switch tube. The anti-reverse diode prevents the short circuit of the battery from damaging the discharge switch tube and the battery when the battery is reversely connected.
充电控制模块包括充电信号放大电路以及充电比较电路，该充电信号放大电路用于接收并放大充电采样信号，充电比较电路用于根据充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号。The charging control module includes a charging signal amplifying circuit for receiving and amplifying the charging sampling signal, and a charging comparison circuit for outputting the charging current control signal according to the output signal of the charging signal amplifying circuit and the reference charging signal. .
放电控制模块包括放电信号放大电路以及放电比较电路，该放电信号放大电路用于接收并放大放电采样信号，放电比较电路用于根据放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。The discharge control module includes a discharge signal amplifying circuit for receiving and amplifying the discharge sampling signal, and a discharge comparison circuit for outputting the discharge current control signal according to the output signal of the discharge signal amplifying circuit and the reference discharge signal. .
本发明的电池充放电系统使用时，先将相应的电池充放电装置30进行并联处理，进行并联处理后，反馈装置40会将每个电池充放电装置30的连接状况以及参数反馈给基准输出装置20，基准输出装置20在分析上述连接状况和参数的基础上，给相应的充电控制模块输出基准充电信号，以及给相应的放电控制模块输出基准放电信号，其中基准充电信号与充电控制模块一一对应，基准放电信号与放电控制模块一一对应。例如两个10A规格的电池充放电装置30并联，基准输出装置20控制充电控制模块输出最大充电电流为10A的基准充电信号，而不会发生超出电池充放电装置30的充放电最大规格的问题。When the battery charging and discharging system of the present invention is used, the corresponding battery charging and discharging device 30 is firstly processed in parallel, and after the parallel processing, the feedback device 40 feeds back the connection status and parameters of each battery charging and discharging device 30 to the reference output device. 20, the reference output device 20, on the basis of analyzing the connection status and parameters, output a reference charging signal to the corresponding charging control module, and output a reference discharging signal to the corresponding discharging control module, wherein the reference charging signal and the charging control module are one by one Correspondingly, the reference discharge signal has a one-to-one correspondence with the discharge control module. For example, two battery charging and discharging devices 30 of 10A specifications are connected in parallel, and the reference output device 20 controls the charging control module to output a reference charging signal having a maximum charging current of 10 A without causing a problem that the maximum charging and discharging specifications of the battery charging and discharging device 30 are exceeded.
由于至少两个电池充放电装置30之间相互并联，即各电池充放电装置30中的充放电模块的输入和输出分别与充电电源10直接连接。因此各充放电模块的充电单元的充电电流之和为正在进行充放电处理的电池的充电电流，各充放电模块的放电单元的放电电流之和为正在进行充放电处理的电池的放电电流。每个充电单元的充电电流均通过相应的充电控制模块进行控制，每个放电单元的放电电流均通过相应的放电控制模块进行控制，这样每个电池充放电装置在基准输出装置的控制下独立工作，并可通过基准输出装置控制该电池充放电装置是否进行工作（即确定该电池充放电装置是否对电池进行充放电），实现了灵活控制并联充放电的电池充放电装置的数量。Since at least two battery charging and discharging devices 30 are connected in parallel with each other, that is, the input and output of the charging and discharging modules in each of the battery charging and discharging devices 30 are directly connected to the charging power source 10, respectively. Therefore, the sum of the charging currents of the charging units of the respective charging and discharging modules is the charging current of the battery that is performing the charging and discharging process, and the sum of the discharging currents of the discharge cells of the respective charging and discharging modules is the discharging current of the battery that is performing the charging and discharging process. The charging current of each charging unit is controlled by a corresponding charging control module, and the discharging current of each discharging unit is controlled by a corresponding discharging control module, so that each battery charging and discharging device operates independently under the control of the reference output device. And the reference output device controls whether the battery charging and discharging device operates (ie, determines whether the battery charging and discharging device charges and discharges the battery), thereby realizing the number of battery charging and discharging devices that flexibly control parallel charging and discharging.
通过多个电池充放电装置30并联联合控制的设置，可以采用更大的充放电电流对电池进行充放电处理，还可以给更大容量的电池进行充放电处理。同时还可通过基准输出装置20对每个充放电模块的充电电流和放电电流进行控制，保证了电池充放电装置30的正常使用。By setting the parallel control of the plurality of battery charging and discharging devices 30 in parallel, it is possible to charge and discharge the battery with a larger charging and discharging current, and to charge and discharge the battery with a larger capacity. At the same time, the charging current and the discharging current of each charging and discharging module can be controlled by the reference output device 20 to ensure the normal use of the battery charging and discharging device 30.
本发明的电池充放电系统的每个电池充放电装置的工作原理和具体实施方式与上述的电池充放电装置的具体实施例相同或相似，具体请参见上述的电池充放电装置的具体实施例。The working principle and specific embodiment of each battery charging and discharging device of the battery charging and discharging system of the present invention are the same as or similar to the specific embodiment of the battery charging and discharging device. For details, please refer to the specific embodiment of the battery charging and discharging device.
本发明的电池充放电装置及电池充放电系统可在保证充放电电流精度的基础上，增大最大的充放电电流，并可实现对充放电电流自动控制，提高了设备的利用率。解决了现有的电池充放电装置及电池充放电系统的设备利用率低以及电池制作成本较高的技术问题。The battery charging and discharging device and the battery charging and discharging system can increase the maximum charging and discharging current on the basis of ensuring the accuracy of the charging and discharging current, and can realize automatic control of the charging and discharging current, thereby improving the utilization rate of the device. The invention solves the technical problems of low equipment utilization rate and high battery manufacturing cost of the existing battery charging and discharging device and the battery charging and discharging system.
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。In the above, the present invention has been disclosed in the above preferred embodiments, but the preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various modifications without departing from the spirit and scope of the invention. The invention is modified and retouched, and the scope of the invention is defined by the scope defined by the claims.
本发明的实施方式Embodiments of the invention
工业实用性Industrial applicability
序列表自由内容Sequence table free content

Claims (20)

  1. 一种电池充放电系统，其包括：A battery charging and discharging system, comprising:
    充电电源；Charger;
    至少两个相互并联的电池充放电装置； At least two battery charging and discharging devices connected in parallel with each other;
    反馈装置，用于反馈所述电池充放电装置的连接状况及参数；以及a feedback device for feeding back connection status and parameters of the battery charging and discharging device;
    基准输出装置，用于根据所述反馈装置的反馈数据，输出至少两个基准充电信号和至少两个基准放电信号；a reference output device, configured to output at least two reference charging signals and at least two reference discharge signals according to feedback data of the feedback device;
    所述电池充放电装置包括：The battery charging and discharging device includes:
    充放电模块，包括：Charge and discharge modules, including:
    充电单元，用于所述至少两个相互并联的电池充放电装置同时对电池进行充电处理；a charging unit, configured to charge the battery at the same time for the at least two battery charging and discharging devices connected in parallel;
    放电单元，用于所述至少两个相互并联的电池充放电装置同时对所述电池进行放电处理；以及a discharge unit for simultaneously discharging the battery by the at least two battery charging and discharging devices connected in parallel; and
    采样单元，用于所述至少两个相互并联的电池充放电装置同时获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit for simultaneously acquiring the charging sampling signal of the charging unit and the discharging sampling signal of the discharging unit by the at least two battery charging and discharging devices connected in parallel;
    充电控制模块，用于根据所述充电采样信号和相应的所述基准充电信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal and the corresponding reference charging signal;
    放电控制模块，用于根据所述放电采样信号和相应的所述基准放电信号，控制所述放电单元的放电电流；a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal and the corresponding reference discharge signal;
    所述电池充放电系统的充电电流为所述至少两个相互并联的电池充放电装置的充电单元的充电电流之和；所述电池充放电系统的放电电流为所述至少两个相互并联的电池充放电装置的放电单元的放电电流之和；The charging current of the battery charging and discharging system is the sum of charging currents of the charging units of the at least two battery charging and discharging devices connected in parallel; the discharging current of the battery charging and discharging system is the at least two batteries connected in parallel with each other The sum of the discharge currents of the discharge cells of the charge and discharge device;
    所述基准充电信号与所述充电控制模块一一对应，所述基准放电信号与所述放电控制模块一一对应。The reference charging signal is in one-to-one correspondence with the charging control module, and the reference discharging signal is in one-to-one correspondence with the discharging control module.
  2. 根据权利要求1所述的电池充放电系统，其中所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。The battery charging and discharging system according to claim 1, wherein the charging unit comprises a charging switch tube, a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube is charged The power supply is connected, and the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
  3. 根据权利要求2所述的电池充放电系统，其中所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。The battery charging and discharging system according to claim 2, wherein the charging unit further comprises an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
  4. 根据权利要求1所述的电池充放电系统，其中所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。The battery charging and discharging system according to claim 1, wherein said discharge unit comprises a discharge switch tube, a control end of said discharge switch tube is connected to an output of said discharge control module, and an input end of said discharge switch tube passes through The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
  5. 根据权利要求4所述的电池充放电系统，其中所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。The battery charging and discharging system according to claim 4, wherein the discharge unit further comprises an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse connection A cathode of the diode is connected to an input end of the discharge switch.
  6. 根据权利要求1所述的电池充放电系统，其中所述充电控制模块包括：The battery charging and discharging system according to claim 1, wherein said charging control module comprises:
    充电信号放大电路，用于接收并放大所述充电采样信号；以及a charging signal amplifying circuit for receiving and amplifying the charged sampling signal;
    充电比较电路，用于根据所述充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号；a charging comparison circuit, configured to output a charging current control signal according to an output signal of the charging signal amplifying circuit and a reference charging signal;
    所述放电控制模块包括：The discharge control module includes:
    放电信号放大电路，用于接收并放大所述放电采样信号；以及a discharge signal amplifying circuit for receiving and amplifying the discharge sampling signal;
    放电比较电路，用于根据所述放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。And a discharge comparing circuit for outputting a discharge current control signal according to an output signal of the discharge signal amplifying circuit and a reference discharge signal.
  7. 一种电池充放电系统，其包括：A battery charging and discharging system, comprising:
    充电电源；Charger;
    至少两个相互并联的电池充放电装置； At least two battery charging and discharging devices connected in parallel with each other;
    反馈装置，用于反馈所述电池充放电装置的连接状况及参数；以及a feedback device for feeding back connection status and parameters of the battery charging and discharging device;
    基准输出装置，用于根据所述反馈装置的反馈数据，输出至少两个基准充电信号和至少两个基准放电信号。 And a reference output device, configured to output at least two reference charging signals and at least two reference discharging signals according to the feedback data of the feedback device.
  8. 根据权利要求7所述的电池充放电系统，其中所述电池充放电装置包括：The battery charging and discharging system according to claim 7, wherein said battery charging and discharging device comprises:
    充放电模块，包括：Charge and discharge modules, including:
    充电单元，用于所述至少两个相互并联的电池充放电装置同时对电池进行充电处理；a charging unit, configured to charge the battery at the same time for the at least two battery charging and discharging devices connected in parallel;
    放电单元，用于所述至少两个相互并联的电池充放电装置同时对所述电池进行放电处理；以及a discharge unit for simultaneously discharging the battery by the at least two battery charging and discharging devices connected in parallel; and
    采样单元，用于所述至少两个相互并联的电池充放电装置同时获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit for simultaneously acquiring the charging sampling signal of the charging unit and the discharging sampling signal of the discharging unit by the at least two battery charging and discharging devices connected in parallel;
    充电控制模块，用于根据所述充电采样信号和相应的所述基准充电信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal and the corresponding reference charging signal;
    放电控制模块，用于根据所述放电采样信号和相应的所述基准放电信号，控制所述放电单元的放电电流。And a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal and the corresponding reference discharge signal.
  9. 根据权利要求8所述的电池充放电系统，其中所述电池充放电系统的充电电流为所述至少两个相互并联的电池充放电装置的充电单元的充电电流之和；所述电池充放电系统的放电电流为所述至少两个相互并联的电池充放电装置的放电单元的放电电流之和。The battery charging and discharging system according to claim 8, wherein a charging current of said battery charging and discharging system is a sum of charging currents of said charging units of said at least two battery charging and discharging devices connected in parallel; said battery charging and discharging system The discharge current is the sum of the discharge currents of the discharge cells of the at least two battery charging and discharging devices connected in parallel.
  10. 根据权利要求8所述的电池充放电系统，其中所述基准充电信号与所述充电控制模块一一对应，所述基准放电信号与所述放电控制模块一一对应。The battery charging and discharging system according to claim 8, wherein said reference charging signal is in one-to-one correspondence with said charging control module, and said reference discharging signal is in one-to-one correspondence with said discharging control module.
  11. 根据权利要求8所述的电池充放电系统，其中所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。The battery charging and discharging system according to claim 8, wherein the charging unit comprises a charging switch tube, a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube is charged The power supply is connected, and the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
  12. 根据权利要求11所述的电池充放电系统，其中所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。The battery charging and discharging system according to claim 11, wherein the charging unit further comprises an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
  13. 根据权利要求8所述的电池充放电系统，其中所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。The battery charging and discharging system according to claim 8, wherein said discharge unit comprises a discharge switch tube, a control end of said discharge switch tube is connected to an output of said discharge control module, and an input end of said discharge switch tube passes through The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
  14. 根据权利要求13所述的电池充放电系统，其中所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。The battery charging and discharging system according to claim 13, wherein the discharge unit further comprises an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse connection A cathode of the diode is connected to an input end of the discharge switch.
  15. 根据权利要求8所述的电池充放电系统，其中The battery charging and discharging system according to claim 8, wherein
    所述充电控制模块包括：The charging control module includes:
    充电信号放大电路，用于接收并放大所述充电采样信号；以及a charging signal amplifying circuit for receiving and amplifying the charged sampling signal;
    充电比较电路，用于根据所述充电信号放大电路的输出信号和基准充电信号，输出充电电流控制信号；a charging comparison circuit, configured to output a charging current control signal according to an output signal of the charging signal amplifying circuit and a reference charging signal;
    所述放电控制模块包括：The discharge control module includes:
    放电信号放大电路，用于接收并放大所述放电采样信号；以及a discharge signal amplifying circuit for receiving and amplifying the discharge sampling signal;
    放电比较电路，用于根据所述放电信号放大电路的输出信号和基准放电信号，输出放电电流控制信号。And a discharge comparing circuit for outputting a discharge current control signal according to an output signal of the discharge signal amplifying circuit and a reference discharge signal.
  16. 一种电池充放电装置，其包括：A battery charging and discharging device comprising:
    充放电模块，包括：Charge and discharge modules, including:
    充电单元，用于对电池进行充电处理； a charging unit for charging the battery;
    放电单元，用于对所述电池进行放电处理；以及 a discharge unit for discharging the battery; and
    采样单元，用于获取所述充电单元的充电采样信号以及所述放电单元的放电采样信号； a sampling unit, configured to acquire a charging sampling signal of the charging unit and a discharging sampling signal of the discharging unit;
    充电控制模块，用于根据所述充电采样信号，控制所述充电单元的充电电流；以及a charging control module, configured to control a charging current of the charging unit according to the charging sampling signal;
    放电控制模块，用于根据所述放电采样信号，控制所述放电单元的放电电流。And a discharge control module, configured to control a discharge current of the discharge unit according to the discharge sampling signal.
  17. 根据权利要求16所述的电池充放电装置，其中所述充电单元包括充电开关管，所述充电开关管的控制端与所述充电控制模块的输出连接，所述充电开关管的输入端与充电电源连接，所述充电开关管的输出端通过所述采样单元与所述电池的正极连接。The battery charging and discharging device according to claim 16, wherein the charging unit comprises a charging switch tube, a control end of the charging switch tube is connected to an output of the charging control module, and an input end of the charging switch tube is charged The power supply is connected, and the output end of the charging switch tube is connected to the positive pole of the battery through the sampling unit.
  18. 根据权利要求17所述的电池充放电装置，其中所述充电单元还包括防倒流二极管，所述防倒流二极管的正极与所述充电电源连接，所述防倒流二极管的负极与所述充电开关管的输入端连接。The battery charging and discharging device according to claim 17, wherein the charging unit further comprises an anti-backflow diode, a positive pole of the anti-backflow diode is connected to the charging power source, a negative pole of the anti-backflow diode and the charging switch tube The input is connected.
  19. 根据权利要求16所述的电池充放电装置，其中所述放电单元包括放电开关管，所述放电开关管的控制端与所述放电控制模块的输出连接，所述放电开关管的输入端通过所述采样单元与所述电池的正极连接，所述放电开关管的输出端与所述电池的负极连接。The battery charging and discharging device according to claim 16, wherein the discharge unit comprises a discharge switch tube, a control end of the discharge switch tube is connected to an output of the discharge control module, and an input end of the discharge switch tube passes through The sampling unit is connected to the positive pole of the battery, and the output end of the discharge switch tube is connected to the negative pole of the battery.
  20. 根据权利要求19所述的电池充放电装置，其中所述放电单元还包括防反接二极管，所述防反接二极管的正极通过所述采样单元与所述电池的正极连接，所述防反接二极管的负极与所述放电开关管的输入端连接。The battery charging and discharging device according to claim 19, wherein the discharge unit further comprises an anti-reverse diode, and the anode of the anti-reverse diode is connected to the anode of the battery through the sampling unit, and the anti-reverse connection A cathode of the diode is connected to an input end of the discharge switch.
PCT/CN2012/078719 2012-07-16 2012-07-16 Battery charging and discharging device and battery charging and discharging system WO2014012211A1 (en)

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