技术领域Technical Field
本实用新型涉及电流测试技术领域，尤其涉及一种电池包的电流测试装置。The utility model relates to the technical field of current testing, in particular to a current testing device for a battery pack.
背景技术Background technique
电池包的电流测试平台是一种用于测试电动汽车电池管理系统(BatteryManagement System，BMS)的电流性能的设备。BMS是电动汽车中的重要组成部分，负责监测和管理电池的状态，包括电压、温度、电流等参数。目前，在硬件台架环境下进行电流测试，需要手动接线以切换电流方向。尤其在环境箱中进行高低温电流精度测试时，需要对被测设备重新降温或者升温才能拆装动力线并进行电流方向更换，这使得充放电切换十分耗时。因此，如何在电流测试过程中实现充放电模式的快速切换，成为了亟待解决的技术问题。The current test platform of the battery pack is a device used to test the current performance of the battery management system (BMS) of electric vehicles. BMS is an important component of electric vehicles and is responsible for monitoring and managing the status of the battery, including parameters such as voltage, temperature, and current. At present, current testing in a hardware bench environment requires manual wiring to switch the current direction. Especially when performing high and low temperature current accuracy tests in an environmental chamber, the device under test needs to be cooled or heated again before the power line can be disassembled and the current direction can be changed, which makes the charge and discharge switching very time-consuming. Therefore, how to achieve rapid switching of charge and discharge modes during current testing has become a technical problem that needs to be solved urgently.
实用新型内容Utility Model Content
本申请实施例的主要目的在于提出一种电池包的电流测试装置，能够实现电池包的充放电模式以及电池包的电流测试装置中电流方向的快速切换。The main purpose of the embodiments of the present application is to provide a current testing device for a battery pack, which can realize the charging and discharging mode of the battery pack and the rapid switching of the current direction in the current testing device for the battery pack.
为实现上述目的，本申请实施例的第一方面提出了一种电池包的电流测试装置，包括：To achieve the above-mentioned purpose, a first aspect of an embodiment of the present application provides a current testing device for a battery pack, comprising:
第一电源、电流测量仪器和切换盒；The first power supply, current measuring instrument and switching box;
所述第一电源通过所述切换盒电连接所述电池包，所述第一电源用于通过所述切换盒为所述电池包充放电；The first power source is electrically connected to the battery pack through the switching box, and the first power source is used to charge and discharge the battery pack through the switching box;
所述电流测量仪器电连接所述第一电源和所述切换盒；The current measuring instrument is electrically connected to the first power supply and the switching box;
所述切换盒，包括：继电器组和第二电源，所述第二电源电连接所述继电器组，所述第二电源用于给所述继电器组供电；其中，所述继电器组包括至少两个继电器；The switching box comprises: a relay group and a second power supply, wherein the second power supply is electrically connected to the relay group and the second power supply is used to supply power to the relay group; wherein the relay group comprises at least two relays;
若所述继电器组处于第一闭合状态，则所述电流测量仪器用于测量所述电池包处于充电模式下的充电电流；If the relay group is in the first closed state, the current measuring instrument is used to measure the charging current of the battery pack when it is in the charging mode;
若所述继电器组处于第二闭合状态，则所述电流测量仪器用于测量所述电池包处于放电模式下的放电电流。If the relay group is in the second closed state, the current measuring instrument is used to measure the discharge current of the battery pack when it is in the discharge mode.
在一些实施例，所述第一电源具有电源正极接口和电源负极接口；所述切换盒还包括第一端口、第二端口、第三端口、第四端口、第五端口和第六端口；所述继电器组包括第一继电器、第二继电器、第三继电器、第四继电器、第五继电器和第六继电器；所述电池包具有第一电池正极接口、第一电池负极接口、第二电池正极接口和第二电池负极接口；In some embodiments, the first power source has a positive power interface and a negative power interface; the switch box further includes a first port, a second port, a third port, a fourth port, a fifth port, and a sixth port; the relay group includes a first relay, a second relay, a third relay, a fourth relay, a fifth relay, and a sixth relay; the battery pack has a first battery positive interface, a first battery negative interface, a second battery positive interface, and a second battery negative interface;
其中，所述第一电池正极接口电连接所述第二电池正极接口，所述第一电池负极接口电连接所述第二电池负极接口；Wherein, the first battery positive electrode interface is electrically connected to the second battery positive electrode interface, and the first battery negative electrode interface is electrically connected to the second battery negative electrode interface;
所述第一电源通过所述切换盒电连接所述电池包，包括：The first power source is electrically connected to the battery pack through the switch box, including:
所述第一端口电连接所述电源正极接口，所述第二端口电连接所述电源负极接口；The first port is electrically connected to the positive power interface, and the second port is electrically connected to the negative power interface;
所述第三端口电连接所述第一电池正极接口，所述第四端口电连接所述第一电池负极接口，所述第五端口电连接所述第二电池正极接口，所述第六端口电连接所述第二电池负极接口；The third port is electrically connected to the positive electrode interface of the first battery, the fourth port is electrically connected to the negative electrode interface of the first battery, the fifth port is electrically connected to the positive electrode interface of the second battery, and the sixth port is electrically connected to the negative electrode interface of the second battery;
所述第一继电器电连接所述第一端口和所述第三端口；The first relay electrically connects the first port and the third port;
所述第二继电器电连接所述第二端口和所述第四端口；The second relay electrically connects the second port and the fourth port;
所述第三继电器电连接所述第一端口和所述第五端口；The third relay electrically connects the first port and the fifth port;
所述第四继电器电连接所述第二端口和所述第六端口；The fourth relay electrically connects the second port and the sixth port;
所述第五继电器电连接所述第一继电器、所述第三端口、所述第二继电器和所述第四端口；The fifth relay is electrically connected to the first relay, the third port, the second relay and the fourth port;
所述第六继电器电连接所述第三继电器、所述第五端口、所述第四继电器和所述第六端口。The sixth relay electrically connects the third relay, the fifth port, the fourth relay, and the sixth port.
在一些实施例，所述电流测量仪器电连接所述第一电源和所述切换盒，包括：所述电流测量仪器电连接所述电源正极接口和所述第一端口，在所述电池包处于所述充电模式或所述放电模式下，所述第一电池正极接口和所述第二电池正极接口之间的电路导通。In some embodiments, the current measuring instrument is electrically connected to the first power supply and the switching box, including: the current measuring instrument is electrically connected to the power supply positive electrode interface and the first port, and when the battery pack is in the charging mode or the discharging mode, the circuit between the first battery positive electrode interface and the second battery positive electrode interface is turned on.
在一些实施例，所述第一闭合状态包括：所述第二继电器、所述第三继电器和所述第五继电器闭合，所述第一继电器、所述第四继电器和所述第六继电器断开；In some embodiments, the first closed state includes: the second relay, the third relay, and the fifth relay are closed, and the first relay, the fourth relay, and the sixth relay are opened;
所述第二闭合状态包括：所述第一继电器、所述第四继电器和所述第六继电器闭合，所述第二继电器、所述第三继电器和所述第五继电器断开。The second closed state includes: the first relay, the fourth relay, and the sixth relay are closed, and the second relay, the third relay, and the fifth relay are opened.
在一些实施例，所述电流测量仪器电连接所述第一电源和所述切换盒，包括：所述电流测量仪器电连接所述电源负极接口和所述第二端口，在所述电池包处于所述充电模式或所述放电模式下，所述第一电池负极接口和所述第二电池负极接口之间的电路导通。In some embodiments, the current measuring instrument is electrically connected to the first power supply and the switching box, including: the current measuring instrument is electrically connected to the power supply negative electrode interface and the second port, and when the battery pack is in the charging mode or the discharging mode, the circuit between the first battery negative electrode interface and the second battery negative electrode interface is turned on.
在一些实施例，所述第一闭合状态，包括：所述第一继电器、所述第四继电器和所述第五继电器闭合，所述第二继电器、所述第三继电器和所述第六继电器断开；In some embodiments, the first closed state includes: the first relay, the fourth relay, and the fifth relay are closed, and the second relay, the third relay, and the sixth relay are opened;
所述第二闭合状态，包括：所述第二继电器、所述第三继电器和所述第六继电器闭合，所述第一继电器、所述第四继电器和所述第五继电器断开。The second closed state includes: the second relay, the third relay and the sixth relay are closed, and the first relay, the fourth relay and the fifth relay are opened.
在一些实施例，所述电流测试装置还包括上位机，所述上位机通信连接所述第一电源和所述切换盒，所述上位机用于控制所述第一电源，和控制所述继电器组处于所述第一闭合状态或所述第二闭合状态。In some embodiments, the current testing device further includes a host computer, which is communicatively connected to the first power supply and the switching box, and is used to control the first power supply and control the relay group to be in the first closed state or the second closed state.
该实施例至少具有如下有益效果：相比人工手动切换，通过上位机控制所述继电器组，自动切换电路状态，提升了操作的便捷性。This embodiment has at least the following beneficial effects: compared with manual switching, the relay group is controlled by the host computer to automatically switch the circuit state, thereby improving the convenience of operation.
在一些实施例，所述第一电源是电流源。In some embodiments, the first power source is a current source.
该实施例至少具有如下有益效果：由电流源为电池包提供真实的电流环境，电流测量仪器可以测量电流源提供的实际电流，提高电流采样精度，提高数据可信度。This embodiment has at least the following beneficial effects: the current source provides a real current environment for the battery pack, and the current measuring instrument can measure the actual current provided by the current source, thereby improving the current sampling accuracy and the data credibility.
在一些实施例，所述电流测量仪器包括分流器或霍尔电流传感器。In some embodiments, the current measuring instrument includes a shunt or a Hall current sensor.
该实施例至少具有如下有益效果：通过分流器或者霍尔电流传感器来测试实际的电流，从而充分考虑损耗、温度等影响，并且考虑分流器或者霍尔电流传感器在真实系统中运行的工作情况。This embodiment has at least the following beneficial effects: the actual current is tested by a shunt or a Hall current sensor, thereby fully considering the effects of loss, temperature, etc., and considering the working conditions of the shunt or the Hall current sensor in a real system.
在一些实施例，所述第一电源的电流范围包括0至1500安培，所述第一电源的电压范围包括0至5伏特；所述第二电源的电压范围包括0至12伏特。该实施例至少具有如下有益效果：选择低压电源，有利于降低成本。In some embodiments, the current range of the first power supply includes 0 to 1500 amperes, the voltage range of the first power supply includes 0 to 5 volts, and the voltage range of the second power supply includes 0 to 12 volts. This embodiment has at least the following beneficial effects: selecting a low-voltage power supply is conducive to reducing costs.
本申请提出的电池包的电流测试装置,通过控制继电器组处于不同的闭合状态下，进而切换电流的方向，使得电池包处于充电模式或放电模式，实现了电池包充放电模式的快速切换，提升了操作的安全性和便捷程度。The current testing device for the battery pack proposed in the present application controls the relay group to be in different closed states, thereby switching the direction of the current so that the battery pack is in charging mode or discharging mode, thereby achieving rapid switching of the battery pack charging and discharging modes and improving the safety and convenience of operation.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本申请实施例提供的电池包的电流测试装置的结构示意图；FIG1 is a schematic structural diagram of a current testing device for a battery pack provided in an embodiment of the present application;
图2是本申请实施例提供的电池包的电流测试装置的电连接示意图；FIG2 is a schematic diagram of electrical connections of a current testing device for a battery pack provided in an embodiment of the present application;
图3是本申请实施例提供的电池包的电流测试装置中电流测量仪器的电连接示意图；3 is a schematic diagram of electrical connections of a current measuring instrument in a current testing device for a battery pack provided in an embodiment of the present application;
图4是本申请实施例提供的电池包的电流测试装置中电流测量仪器的另一电连接示意图；FIG4 is another electrical connection diagram of a current measuring instrument in a current testing device for a battery pack provided in an embodiment of the present application;
图5是本申请实施例提供的电池包的电流测试装置的另一结构示意图。FIG. 5 is another schematic diagram of the structure of the current testing device for the battery pack provided in an embodiment of the present application.
具体实施方式Detailed ways
为了使本申请的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
需要说明的是，虽然在装置示意图中进行了功能模块划分，在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于装置中的模块划分，或流程图中的顺序执行所示出或描述的步骤。说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。It should be noted that, although the functional modules are divided in the device schematic diagram and the logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first", "second", etc. in the specification, claims and the above drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中所使用的术语只是为了描述本申请实施例的目的，不是旨在限制本申请。Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein are only for the purpose of describing the embodiments of this application and are not intended to limit this application.
本申请实施例提供的电池包的电流测试装置，具体通过如下实施例进行说明，首先描述本申请实施例中的电池包的电流测试装置。The current testing device of the battery pack provided in the embodiment of the present application is specifically illustrated through the following embodiments. First, the current testing device of the battery pack in the embodiment of the present application is described.
请参阅图1，本申请实施例提供的电池包的电流测试装置，包括：第一电源100、电流测量仪器200和切换盒300。第一电源100通过切换盒300电连接电池包400，第一电源100用于通过切换盒300为电池包400充放电。电流测量仪器200电连接第一电源100和切换盒300。切换盒300包括：继电器组310和第二电源320，第二电源320电连接继电器组310，第二电源320用于给继电器组310供电。其中，继电器组310包括至少两个继电器。若继电器组310处于第一闭合状态，则电流测量仪器200用于测量电池包400处于充电模式下的充电电流；若继电器组310处于第二闭合状态，则电流测量仪器200用于测量电池包400处于放电模式下的放电电流。Please refer to FIG. 1 , the current testing device of the battery pack provided in the embodiment of the present application includes: a first power supply 100, a current measuring instrument 200 and a switching box 300. The first power supply 100 is electrically connected to the battery pack 400 through the switching box 300, and the first power supply 100 is used to charge and discharge the battery pack 400 through the switching box 300. The current measuring instrument 200 is electrically connected to the first power supply 100 and the switching box 300. The switching box 300 includes: a relay group 310 and a second power supply 320, the second power supply 320 is electrically connected to the relay group 310, and the second power supply 320 is used to supply power to the relay group 310. Among them, the relay group 310 includes at least two relays. If the relay group 310 is in the first closed state, the current measuring instrument 200 is used to measure the charging current of the battery pack 400 in the charging mode; if the relay group 310 is in the second closed state, the current measuring instrument 200 is used to measure the discharge current of the battery pack 400 in the discharge mode.
具体地，第一电源100能够为电池包400放电或充电，使得电池包400进入充电模式或放电模式。充电模式和放电模式所需的电流方向、以及所处的电流回路并不相同。Specifically, the first power source 100 can discharge or charge the battery pack 400, so that the battery pack 400 enters a charging mode or a discharging mode. The current direction and the current loop required by the charging mode and the discharging mode are different.
相关技术中，为了更改电流方向，往往需要重复接线，导致电路切换效率低。在本申请实施例中，在第一电源100和电池包400之间设置了继电器组310，该继电器组310包括至少两个继电器。继电器是一种电气开关装置，用来控制电流的流动。继电器包括电磁继电器和固态继电器两种类型。这些继电器能够部分闭合、部分断开，使继电器组310能够处于第一闭合状态或第二闭合状态，进而使得电池包400进入充电模式或放电模式。可见，在设置好电流测试装置之后，无需再拆解模块或重接线路，就能够通过控制继电器完成充电或放电的模式转换。相比人工手动切换，本申请通过控制继电器进而切换电流的方向，提升了操作的安全性和便捷程度。In the related art, in order to change the direction of the current, it is often necessary to repeat the wiring, resulting in low circuit switching efficiency. In an embodiment of the present application, a relay group 310 is provided between the first power supply 100 and the battery pack 400, and the relay group 310 includes at least two relays. A relay is an electrical switching device used to control the flow of current. Relays include two types: electromagnetic relays and solid-state relays. These relays can be partially closed and partially opened, so that the relay group 310 can be in a first closed state or a second closed state, thereby allowing the battery pack 400 to enter a charging mode or a discharging mode. It can be seen that after the current testing device is set up, there is no need to disassemble the module or reconnect the line, and the charging or discharging mode conversion can be completed by controlling the relay. Compared with manual switching, the present application improves the safety and convenience of operation by controlling the relay to switch the direction of the current.
需要说明的是，电磁继电器是通过电磁吸引力或排斥力来控制开关动作的。它由电磁线圈、铁芯、触点和弹簧等组成。当电流通过电磁线圈时，产生的磁场吸引或排斥铁芯，使触点闭合或断开，从而控制电流的通断。固态继电器是基于半导体器件的开关装置，没有机械部件。它由输入控制电路、输出功率电路和隔离器件组成。当输入控制电路施加电压时，输出功率电路的继电器开关状态发生变化，从而控制电流的通断。It should be noted that the electromagnetic relay controls the switching action through electromagnetic attraction or repulsion. It consists of an electromagnetic coil, an iron core, contacts, and a spring. When current passes through the electromagnetic coil, the magnetic field generated attracts or repels the iron core, causing the contacts to close or open, thereby controlling the on and off of the current. The solid-state relay is a switching device based on semiconductor devices and has no mechanical parts. It consists of an input control circuit, an output power circuit, and an isolation device. When the input control circuit applies voltage, the relay switch state of the output power circuit changes, thereby controlling the on and off of the current.
请参阅图2，在一些实施例中，第一电源100具有电源正极接口101和电源负极接口102。切换盒300还包括第一端口301、第二端口302、第三端口303、第四端口304、第五端口305和第六端口306。继电器组310包括第一继电器K1、第二继电器K2、第三继电器K3、第四继电器K4、第五继电器K5和第六继电器K6。电池包400具有第一电池正极接口401、第一电池负极接口402、第二电池正极接口403和第二电池负极接口404。其中，第一电池正极接口401电连接第二电池正极接口403，第一电池负极接口402电连接第二电池负极接口404。Referring to FIG. 2 , in some embodiments, the first power source 100 has a positive power interface 101 and a negative power interface 102. The switch box 300 also includes a first port 301, a second port 302, a third port 303, a fourth port 304, a fifth port 305, and a sixth port 306. The relay group 310 includes a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a fifth relay K5, and a sixth relay K6. The battery pack 400 has a first battery positive interface 401, a first battery negative interface 402, a second battery positive interface 403, and a second battery negative interface 404. Among them, the first battery positive interface 401 is electrically connected to the second battery positive interface 403, and the first battery negative interface 402 is electrically connected to the second battery negative interface 404.
第一电源100通过切换盒300电连接电池包400，包括：The first power source 100 is electrically connected to the battery pack 400 through the switch box 300, including:
第一端口301电连接电源正极接口101，第二端口302电连接电源负极接口102；第三端口303电连接第一电池正极接口401，第四端口304电连接第一电池负极接口402，第五端口305电连接第二电池正极接口403，第六端口306电连接第二电池负极接口404；第一继电器K1电连接第一端口301和第三端口303；第二继电器K2电连接第二端口302和第四端口304；第三继电器K3电连接第一端口301和第五端口305；第四继电器K4电连接第二端口302和第六端口306；第五继电器K5电连接第一继电器K1、第三端口303、第二继电器K2和第四端口304；第六继电器K6电连接第三继电器K3、第五端口305、第四继电器K4和第六端口306。The first port 301 is electrically connected to the positive power interface 101, and the second port 302 is electrically connected to the negative power interface 102; the third port 303 is electrically connected to the first battery positive interface 401, the fourth port 304 is electrically connected to the first battery negative interface 402, the fifth port 305 is electrically connected to the second battery positive interface 403, and the sixth port 306 is electrically connected to the second battery negative interface 404; the first relay K1 is electrically connected to the first port 301 and the third port 303; the second relay K2 is electrically connected to the second port 302 and the fourth port 304; the third relay K3 is electrically connected to the first port 301 and the fifth port 305; the fourth relay K4 is electrically connected to the second port 302 and the sixth port 306; the fifth relay K5 is electrically connected to the first relay K1, the third port 303, the second relay K2 and the fourth port 304; the sixth relay K6 is electrically connected to the third relay K3, the fifth port 305, the fourth relay K4 and the sixth port 306.
需要说明的是，电池包400可以应用于电动汽车中。对应地，第一电池正极接口401和第一电池负极接口402是靠近电池包中电池的接口，第二电池正极接口403和第二电池负极接口404是靠近电池包中主正继电器的接口。It should be noted that the battery pack 400 can be used in electric vehicles. Correspondingly, the first battery positive electrode interface 401 and the first battery negative electrode interface 402 are interfaces close to the battery in the battery pack, and the second battery positive electrode interface 403 and the second battery negative electrode interface 404 are interfaces close to the main positive relay in the battery pack.
在上述实施例中，继电器组310包括第一继电器K1、第二继电器K2、第三继电器K3、第四继电器K4、第五继电器K5和第六继电器K6，一共6个继电器。这些继电器可以部分闭合、部分断开，使得电池包400和第一电源100之间形成充电回路或放电回路，进而使得电池包进入充电模式或放电模式。In the above embodiment, the relay group 310 includes a first relay K1, a second relay K2, a third relay K3, a fourth relay K4, a fifth relay K5 and a sixth relay K6, a total of 6 relays. These relays can be partially closed or partially opened, so that a charging circuit or a discharging circuit is formed between the battery pack 400 and the first power source 100, thereby causing the battery pack to enter a charging mode or a discharging mode.
该实施例的好处在于，通过设置多个继电器，并且控制多个继电器的闭合或断开，使得继电器组310进入第一闭合状态或第二闭合状态，进而实现电流方向的快速切换。The advantage of this embodiment is that by providing a plurality of relays and controlling the closing or opening of the plurality of relays, the relay group 310 is made to enter the first closing state or the second closing state, thereby realizing rapid switching of the current direction.
请参阅图3，在一些实施例中，电流测量仪器200电连接第一电源100和切换盒300，包括：电流测量仪器200电连接电源正极接口101和第一端口301，在电池包400处于充电模式或放电模式下，第一电池正极接口401和第二电池正极接口403之间的电路导通。Please refer to Figure 3. In some embodiments, the current measuring instrument 200 is electrically connected to the first power supply 100 and the switching box 300, including: the current measuring instrument 200 is electrically connected to the power positive electrode interface 101 and the first port 301, and when the battery pack 400 is in charging mode or discharging mode, the circuit between the first battery positive electrode interface 401 and the second battery positive electrode interface 403 is turned on.
该实施例的好处在于，能够测量第一电池正极接口401和第二电池正极接口403之间的充电电流或放电电流。The advantage of this embodiment is that the charging current or the discharging current between the first battery positive electrode interface 401 and the second battery positive electrode interface 403 can be measured.
请参阅图3，在一些实施例中，第一闭合状态包括：第二继电器K2、第三继电器K3和第五继电器K5闭合，第一继电器K1、第四继电器K4和第六继电器K6断开。第二闭合状态包括：第一继电器K1、第四继电器K4和第六继电器K6闭合，第二继电器K2、第三继电器K3和第五继电器K5断开。Please refer to FIG3 , in some embodiments, the first closed state includes: the second relay K2, the third relay K3 and the fifth relay K5 are closed, and the first relay K1, the fourth relay K4 and the sixth relay K6 are disconnected. The second closed state includes: the first relay K1, the fourth relay K4 and the sixth relay K6 are closed, and the second relay K2, the third relay K3 and the fifth relay K5 are disconnected.
具体地，在第一闭合状态下，电流方向为第二电池正极接口403到第一电池正极接口401，电流测量仪器200用于测量电池包400处于充电模式下的充电电流。Specifically, in the first closed state, the current direction is from the second battery positive electrode interface 403 to the first battery positive electrode interface 401 , and the current measuring instrument 200 is used to measure the charging current of the battery pack 400 in the charging mode.
具体地，在另一例子中，如果第二继电器K2、第三继电器K3和第五继电器K5闭合，第一继电器K1、第四继电器K4和第六继电器K6断开，则电池包400和第一电源100之间形成充电回路。该充电回路包括：电源正极接口101、电流测量仪器200、第一端口301、第三继电器K3、第五端口305、第二电池正极接口403、第一电池正极接口401、第三端口303、第五继电器K5、第二继电器K2、第二端口302、和电源负极接口102。Specifically, in another example, if the second relay K2, the third relay K3 and the fifth relay K5 are closed, and the first relay K1, the fourth relay K4 and the sixth relay K6 are disconnected, a charging circuit is formed between the battery pack 400 and the first power source 100. The charging circuit includes: a power positive electrode interface 101, a current measuring instrument 200, a first port 301, a third relay K3, a fifth port 305, a second battery positive electrode interface 403, a first battery positive electrode interface 401, a third port 303, a fifth relay K5, a second relay K2, a second port 302, and a power negative electrode interface 102.
具体地，在第二闭合状态下，电流方向为第一电池正极接口401到第二电池正极接口403，电流测量仪器200用于测量电池包400处于放电模式下的放电电流。Specifically, in the second closed state, the current direction is from the first battery positive electrode interface 401 to the second battery positive electrode interface 403 , and the current measuring instrument 200 is used to measure the discharge current of the battery pack 400 in the discharge mode.
具体地，在另一例子中，如果第一继电器K1、第四继电器K4和第六继电器K6闭合，第二继电器K2、第三继电器K3和第五继电器K5断开，则电池包400和第一电源100之间形成放电回路。该放电回路包括：电源正极接口101、电流测量仪器200、第一端口301、第一继电器K1、第三端口303、第一电池正极接口401、第二电池正极接口403、第五端口305、第六继电器K6、第四继电器K4、第二端口302、和电源负极接口102。Specifically, in another example, if the first relay K1, the fourth relay K4, and the sixth relay K6 are closed, and the second relay K2, the third relay K3, and the fifth relay K5 are disconnected, a discharge loop is formed between the battery pack 400 and the first power source 100. The discharge loop includes: a power source positive electrode interface 101, a current measuring instrument 200, a first port 301, a first relay K1, a third port 303, a first battery positive electrode interface 401, a second battery positive electrode interface 403, a fifth port 305, a sixth relay K6, a fourth relay K4, a second port 302, and a power source negative electrode interface 102.
该实施例的好处在于，通过控制多个继电器的部分闭合或断开使得继电器组310进入第一闭合状态或第二闭合状态，进而实现电流方向的快速切换。The advantage of this embodiment is that the relay group 310 enters the first closed state or the second closed state by controlling the partial closing or opening of the plurality of relays, thereby realizing rapid switching of the current direction.
请参阅图4，在一些实施例中，电流测量仪器200电连接第一电源100和切换盒300，包括：电流测量仪器200电连接电源负极接口102和第二端口302，在电池包400处于充电模式或放电模式下，第一电池负极接口402和第二电池负极接口404之间的电路导通。Please refer to Figure 4. In some embodiments, the current measuring instrument 200 is electrically connected to the first power supply 100 and the switching box 300, including: the current measuring instrument 200 is electrically connected to the power supply negative electrode interface 102 and the second port 302, and when the battery pack 400 is in charging mode or discharging mode, the circuit between the first battery negative electrode interface 402 and the second battery negative electrode interface 404 is turned on.
该实施例的好处在于，能够测量第一电池负极接口402和第二电池负极接口404之间的充电电流或放电电流。The advantage of this embodiment is that the charging current or the discharging current between the first battery negative electrode interface 402 and the second battery negative electrode interface 404 can be measured.
请参阅图4，在一些实施例中，第一闭合状态包括：第一继电器K1、第四继电器K4和第五继电器K5闭合，第二继电器K2、第三继电器K3和第六继电器K6断开。第二闭合状态包括：第二继电器K2、第三继电器K3和第六继电器K6闭合，第一继电器K1、第四继电器K4和第五继电器K5断开。Please refer to FIG4 , in some embodiments, the first closed state includes: the first relay K1, the fourth relay K4 and the fifth relay K5 are closed, and the second relay K2, the third relay K3 and the sixth relay K6 are disconnected. The second closed state includes: the second relay K2, the third relay K3 and the sixth relay K6 are closed, and the first relay K1, the fourth relay K4 and the fifth relay K5 are disconnected.
具体地，在第一闭合状态下，电流方向为第一电池负极接口402到第二电池负极接口404，电流测量仪器200用于测量电池包400处于充电模式下的充电电流。Specifically, in the first closed state, the current direction is from the first battery negative electrode interface 402 to the second battery negative electrode interface 404 , and the current measuring instrument 200 is used to measure the charging current of the battery pack 400 in the charging mode.
具体地，在一例子中，如果第一继电器K1、第四继电器K4和第五继电器K5闭合，第二继电器K2、第三继电器K3和第六继电器K6断开，则电池包400和第一电源100之间形成充电回路。该充电回路包括：电源正极接口101、第一端口301、第一继电器K1、第五继电器K5、第四端口304、第一电池负极接口402、第二电池负极接口404、第六端口306、第四继电器K4、第二端口302、电流测量仪器200、和电源负极接口102。Specifically, in one example, if the first relay K1, the fourth relay K4, and the fifth relay K5 are closed, and the second relay K2, the third relay K3, and the sixth relay K6 are disconnected, a charging circuit is formed between the battery pack 400 and the first power source 100. The charging circuit includes: a power source positive electrode interface 101, a first port 301, a first relay K1, a fifth relay K5, a fourth port 304, a first battery negative electrode interface 402, a second battery negative electrode interface 404, a sixth port 306, a fourth relay K4, a second port 302, a current measuring instrument 200, and a power source negative electrode interface 102.
具体地，在第二闭合状态下，电流方向为第二电池负极接口404到第一电池负极接口402，电流测量仪器200用于测量电池包400处于放电模式下的放电电流。Specifically, in the second closed state, the current direction is from the second battery negative electrode interface 404 to the first battery negative electrode interface 402 , and the current measuring instrument 200 is used to measure the discharge current of the battery pack 400 in the discharge mode.
具体地，在另一例子中，如果第二继电器K2、第三继电器K3和第六继电器K6闭合，第一继电器K1、第四继电器K4和第五继电器K5断开，则电池包400和第一电源100之间形成充电回路。该充电回路包括：电源正极接口101、第一端口301、第三继电器K3、第六继电器K6、第六端口306、第二电池负极接口404、第一电池负极接口402、第四端口304、第二继电器K2、第二端口302、电流测量仪器200、和电源负极接口102。Specifically, in another example, if the second relay K2, the third relay K3 and the sixth relay K6 are closed, and the first relay K1, the fourth relay K4 and the fifth relay K5 are disconnected, a charging circuit is formed between the battery pack 400 and the first power source 100. The charging circuit includes: a power source positive electrode interface 101, a first port 301, a third relay K3, a sixth relay K6, a sixth port 306, a second battery negative electrode interface 404, a first battery negative electrode interface 402, a fourth port 304, a second relay K2, a second port 302, a current measuring instrument 200, and a power source negative electrode interface 102.
该实施例的好处在于，多个继电器的部分闭合或断开使得继电器组310进入第一闭合状态或第二闭合状态，进而实现电流方向的快速切换。The advantage of this embodiment is that partial closing or opening of the plurality of relays causes the relay group 310 to enter the first closed state or the second closed state, thereby achieving rapid switching of the current direction.
请参阅图5，在另一例子中，本申请实施例提供的的电池包的电流测试装置还包括上位机500，上位机500通信连接第一电源100和切换盒300，上位机500用于控制第一电源100，和控制继电器组310处于第一闭合状态或第二闭合状态。Please refer to Figure 5. In another example, the current testing device of the battery pack provided in the embodiment of the present application also includes a host computer 500, which is communicatively connected to the first power supply 100 and the switching box 300. The host computer 500 is used to control the first power supply 100 and control the relay group 310 to be in a first closed state or a second closed state.
需要说明的是，上位机500通信连接切换盒300，具体为：上位机500通信连接切换盒300内部的继电器组310和第二电源320。It should be noted that the host computer 500 is communicatively connected to the switch box 300 , specifically: the host computer 500 is communicatively connected to the relay group 310 and the second power supply 320 inside the switch box 300 .
需要说明的是，本申请实施例的上位机500包括但不限于终端和服务器端。在一些实施例中，终端可以是智能手机、平板电脑、笔记本电脑、台式计算机等。服务器端可以配置成独立的物理服务器，也可以配置成多个物理服务器构成的服务器集群或者分布式系统，还可以配置成提供云服务、云数据库、云计算、云函数、云存储、网络服务、云通信、中间件服务、域名服务、安全服务、CDN以及大数据和人工智能平台等基础云计算服务的云服务器。It should be noted that the host computer 500 of the embodiment of the present application includes but is not limited to a terminal and a server. In some embodiments, the terminal may be a smart phone, a tablet computer, a laptop computer, a desktop computer, etc. The server may be configured as an independent physical server, or as a server cluster or distributed system consisting of multiple physical servers, or as a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, CDN, and big data and artificial intelligence platforms.
需要说明的是，控制继电器组310的具体方式包括：通过运行于上位机500中的软件自动控制继电器组310，或者手动控制继电器组310并切换其中各个继电器的通断。It should be noted that the specific methods of controlling the relay group 310 include: automatically controlling the relay group 310 through software running in the host computer 500, or manually controlling the relay group 310 and switching each relay therein on or off.
该实施例的好处在于，通过运行于上位机500中的软件自动控制继电器组310的通断，进而切换电流的方向，提升了操作的安全性和便捷程度。通过软件还可以自动设置测试次数，有利于电流测试的多次重复进行，免去了反复设置的人工步骤，降低了人工与时间成本，提高了测试效率。The advantage of this embodiment is that the software running in the host computer 500 automatically controls the on and off of the relay group 310, thereby switching the direction of the current, thereby improving the safety and convenience of the operation. The software can also automatically set the number of tests, which is conducive to repeated current tests, eliminating the manual steps of repeated settings, reducing labor and time costs, and improving test efficiency.
请参阅图5，在一些实施例中，第一电源100是电流源。这样做的好处在于，通过直接使用电流源作为第一电源100，避免了电压转换为电流的转换误差，去除了电阻的阻值误差、电压源的稳定性等干扰因素，从而直接获取实际电流，更方便地进行电流控制和测量，使测试电流数值更加精确。通过直接测量电流源提供的实际电流，提高电流采样精度，提高数据可信度。Please refer to FIG5 . In some embodiments, the first power source 100 is a current source. The advantage of this is that by directly using the current source as the first power source 100 , the conversion error of voltage to current is avoided, and interference factors such as resistance error of the resistor and stability of the voltage source are removed, so that the actual current can be directly obtained, and the current control and measurement can be more convenient, making the test current value more accurate. By directly measuring the actual current provided by the current source, the current sampling accuracy is improved, and the data credibility is improved.
请参阅图5，在一些实施例中，电流测量仪器200包括分流器或霍尔电流传感器。这样做的好处在于，通过分流器或者霍尔电流传感器来测试实际的电流，从而充分考虑损耗、温度等影响，并且考虑分流器或者霍尔电流传感器在真实系统中的运行的工作情况。Referring to Fig. 5, in some embodiments, the current measuring instrument 200 includes a shunt or a Hall current sensor. The advantage of this is that the actual current is tested by the shunt or the Hall current sensor, so that the influence of loss, temperature, etc. is fully considered, and the working condition of the shunt or the Hall current sensor in the actual system is considered.
在一些实施例中，第一电源100的电流范围包括0至1500安培，第一电源100的电压范围包括0至5伏特；第二电源320的电压范围包括0至12伏特。In some embodiments, the current range of the first power supply 100 includes 0 to 1500 amperes, the voltage range of the first power supply 100 includes 0 to 5 volts; and the voltage range of the second power supply 320 includes 0 to 12 volts.
具体地，第一电源100的电流包括：400安培、800安培、1000安培或1500安培。Specifically, the current of the first power source 100 includes: 400 amperes, 800 amperes, 1000 amperes or 1500 amperes.
本申请实施例的有益效果包括但不限于：选择低压电源，对应的低压电源设备价格相对便宜，有利于降低成本。The beneficial effects of the embodiments of the present application include but are not limited to: selecting a low-voltage power supply, the corresponding low-voltage power supply equipment is relatively cheap, which is conducive to reducing costs.
需要说明的是，以上仅为本申请的优选实施例，并非因此限制本申请的专利范围。It should be noted that the above are only preferred embodiments of the present application and are not intended to limit the patent scope of the present application.
本申请实施例描述的实施例是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域技术人员可知，随着技术的演变和新应用场景的出现，本申请实施例提供的技术方案对于类似的技术问题，同样适用。The embodiments described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Those skilled in the art will appreciate that with the evolution of technology and the emergence of new application scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
本领域技术人员可以理解的是，图中示出的技术方案并不构成对本申请实施例的限定，可以包括比图示更多或更少的步骤，或者组合某些步骤，或者不同的步骤。Those skilled in the art will appreciate that the technical solutions shown in the figures do not constitute a limitation on the embodiments of the present application, and may include more or fewer steps than shown in the figures, or a combination of certain steps, or different steps.
以上所描述的装置实施例仅仅是示意性的，其中作为分离部件说明的单元可以是或者也可以不是物理上分开的，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。The device embodiments described above are merely illustrative, and the units described as separate components may or may not be physically separated, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
本申请的说明书及上述附图中的术语“第一”、“第二”、“第三”、“第四”等(如果存在)是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本申请的实施例能够以除了在这里图示或描述的那些以外的顺序实施。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的系统、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些系统、产品或设备固有的其它步骤或单元。The terms "first", "second", "third", "fourth", etc. (if any) in the specification of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these systems, products or devices.
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。In the several embodiments provided in the present application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
以上参照附图说明了本申请实施例的优选实施例，并非因此局限本申请实施例的权利范围。本领域技术人员不脱离本申请实施例的范围和实质内所作的任何修改、等同替换和改进，均应在本申请实施例的权利范围之内。The preferred embodiments of the present application are described above with reference to the accompanying drawings, but the scope of the rights of the present application is not limited thereto. Any modification, equivalent substitution and improvement made by a person skilled in the art without departing from the scope and essence of the present application should be within the scope of the rights of the present application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323079249.XUCN221124828U (en) | 2023-11-14 | 2023-11-14 | Current testing device of battery pack |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323079249.XUCN221124828U (en) | 2023-11-14 | 2023-11-14 | Current testing device of battery pack |
| Publication Number | Publication Date |
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| CN221124828Utrue CN221124828U (en) | 2024-06-11 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323079249.XUActiveCN221124828U (en) | 2023-11-14 | 2023-11-14 | Current testing device of battery pack |
| Country | Link |
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| CN (1) | CN221124828U (en) |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | Effective date of registration:20250825 Address after:518100, Building 2, Innovation Smart Port, No. 155 Hongtian Road, Huangpu Community, Xinqiao Street, Bao'an District, Shenzhen City, Guangdong Province, China Patentee after:Xinjie An Automotive Electronics Co.,Ltd. Country or region after:China Address before:Guangming Street Gongming Tong South Shenzhen city Guangdong province 518000 No. eighteen to Wanda Industrial Park building A building 1-2 Patentee before:Xinwangda Power Technology Co.,Ltd. Country or region before:China | |
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