CN111505514A - Battery working condition test system - Google Patents
Battery working condition test system Download PDFInfo
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- CN111505514A CN111505514A CN202010455771.5A CN202010455771A CN111505514A CN 111505514 A CN111505514 A CN 111505514A CN 202010455771 A CN202010455771 A CN 202010455771A CN 111505514 A CN111505514 A CN 111505514A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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Abstract
The application provides a battery operating mode test system. The battery working condition testing system can comprise a testing box, a charging and discharging system, an environment control system and an integrated control system. The test chamber may comprise a number of test chambers. A plurality of battery cells in a battery pack to be tested may be loaded into the plurality of test chambers. Each of the plurality of test chambers may house a single cell. Each test chamber is provided with a current input line and a current output line. The charging and discharging system can charge or discharge the single batteries in each test cavity. An environment acquisition system in the environment control system can acquire the test environment in each test cavity. Therefore, the technical problem that the traditional battery working condition testing system cannot test the single battery is solved.
Description
Technical Field
The application relates to the field of battery test equipment, in particular to a battery working condition test system.
Background
An electric vehicle is an automobile that runs by driving a vehicle using an on-vehicle battery as a power source. The main energy source of electric vehicles is electricity. The electric automobile can realize zero pollution emission, has low running noise and better driving experience. But the development of the electric automobile is also restricted by the problems of frequent use safety of the battery, incapability of reaching the fuel automobile degree of endurance mileage, incompleteness of a battery charging pile, high battery maintenance cost and the like.
The battery is used as a driving power source of the electric automobile and is a main factor influencing the endurance mileage of the electric automobile. In order to detect the working capacity of the battery in actual use, before the battery is carried on a whole vehicle, the performance of the battery needs to be simulated so as to obtain relevant parameters of the battery. For example, the charging and discharging conditions of the battery need to be simulated or simulated. By carrying out working condition simulation or emulation work on the battery, the charge and discharge performance, the cycle service life, the battery temperature change, the battery capacity change and the like of the battery under different roads and environments can be obtained. The battery working condition testing system is used for testing the battery, the battery does not need to be carried on the whole vehicle for testing, and the cost for carrying the whole vehicle on the power battery pack system for testing is reduced, so that the development cost of the battery is reduced, and meanwhile, the development time of the battery is saved.
The battery working condition simulation system in the current market mostly comprises a battery charging and discharging control system, a temperature/humidity control system and an integrated control system. The battery working condition testing system can realize the capacity energy testing, the energy efficiency testing, the power internal resistance testing, the energy density testing, the working condition cycle testing and other electrical performance testing of the battery at various temperatures, and environmental adaptability testing items such as rapid temperature change, temperature impact, heat and humidity cycle and the like. However, the existing working condition testing system is difficult to monitor various performance changes of each battery in the battery pack, such as current fluctuation, cycle attenuation, temperature distribution and the like of a single battery.
Disclosure of Invention
For solving the technical problem that traditional battery operating mode test system can't test the performance of the battery cell in the battery package, the application discloses a battery operating mode test system, includes: a test box comprising a number of test chambers configured to load a battery to be tested; the charging and discharging system is electrically connected with the batteries to be tested in the plurality of testing cavities during working and is used for charging or discharging the batteries to be tested; the environment control system is connected with the test box and used for controlling the environment in the test box; and the integrated control system is electrically connected with the charging and discharging system and the environment control system, and is used for sending a control instruction to the charging and discharging system and/or the environment control system or receiving data acquired by the charging and discharging system and/or the environment control system.
In some embodiments, the test box comprises a plurality of layers of drawers, each layer of drawers in the plurality of layers of drawers comprises at least one test chamber, and the at least one test chamber in each layer of drawers is separated by a partition plate.
In some embodiments, a plurality of hollowed-out structures are arranged on the side wall and the bottom plate of each layer of drawer.
In some embodiments, a plurality of hollowed-out structures are arranged on the partition plate in each layer of drawer.
In some embodiments, a slide is disposed on the bottom plate of each test chamber; and a fixing plate is arranged in each test cavity and is connected to the slide way in a sliding mode.
In some embodiments, a number of channels are provided within the test chamber, the number of channels configured to allow passage of a cooling fluid.
In some embodiments, the battery working condition testing system further comprises a water cooling control system, wherein the water cooling control system comprises a plurality of flow valves, and the flow valves are installed on the plurality of pipelines; the water cooling control system receives a control instruction from the integrated control system, and the flow of the cooling liquid in the pipelines is controlled through the flow valves.
In some embodiments, a fan is mounted within the test box.
In some embodiments, the battery condition testing system further comprises: and the air cooling control system controls the work of the fan.
In some embodiments, the battery condition testing system further comprises: and the serial-parallel control system is electrically connected with the batteries to be tested in the test cavities during working, receives the instruction of the integrated control system and controls the batteries to be tested to be connected in series or in parallel.
In some embodiments, the battery condition testing system further comprises: and the expansion acquisition system is connected with the batteries to be tested in the test cavities during working and acquires the expansion amount of the batteries to be tested in the charging or discharging process.
In some embodiments, the environmental control system comprises: and the environment acquisition system is connected with the plurality of test cavities and is used for acquiring target environment information in the plurality of test cavities during working.
In some embodiments, the target environmental information includes at least one of temperature, humidity, and salt haze.
To sum up, the application provides a battery operating mode test system. The battery working condition testing system can comprise a testing box, a charging and discharging system, an environment control system and an integrated control system. The test chamber may comprise a number of test chambers. A plurality of battery cells in a battery pack to be tested may be loaded into the plurality of test chambers. Each of the plurality of test chambers may house a single cell. Each test chamber is provided with a current input line and a current output line. The charging and discharging system can charge or discharge the single batteries in each test cavity. An environment acquisition system in the environment control system can acquire the test environment in each test cavity. Therefore, the technical problem that the traditional battery working condition testing system cannot test the single battery is solved.
Drawings
FIG. 1 is a schematic diagram illustrating a battery condition testing system according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a test box provided according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of a test box body according to an embodiment of the present application;
FIG. 4A illustrates a front view of a test box body provided in accordance with an embodiment of the present application;
FIG. 4B shows the view A-A of FIG. 4A;
FIG. 5 is a schematic structural diagram of a drawer according to an embodiment of the present application;
FIG. 6 is a schematic diagram illustrating a structure of a region of a test chamber according to an embodiment of the present disclosure; and
fig. 7 shows a schematic structural diagram of an integrated control system provided according to an embodiment of the present application.
Detailed Description
The following description is presented to enable any person skilled in the art to make and use the present disclosure, and is provided in the context of a particular application and its requirements. Various modifications to the disclosed embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments and applications without departing from the spirit and scope of the present application. Thus, the present application is not limited to the embodiments shown, but is to be accorded the widest scope consistent with the claims.
The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting.
These and other features of the present application, as well as the operation and function of the related elements of structure and the combination of parts and economies of manufacture, may be significantly improved upon consideration of the following description. All of which form a part of this application, with reference to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the application.
These and other features of the present application, as well as the operation and function of the related elements of the structure, and the economic efficiency of assembly and manufacture, are significantly improved by the following description. All of which form a part of this application with reference to the accompanying drawings. It is to be expressly understood, however, that the drawings are for the purpose of illustration and description only and are not intended as a definition of the limits of the application. It should also be understood that the drawings are not drawn to scale.
The application provides a battery operating mode test system. The battery working condition testing system can be used for testing the performance of the battery in the battery pack under the target working condition. The battery may be various types of batteries. The battery may include, but is not limited to, a lithium ion battery, a hydrogen fuel cell, and the like. The battery can be a mobile phone battery, a computer battery, an automobile battery, an unmanned aerial vehicle battery, and the like. The battery may include, but is not limited to, a prismatic aluminum can battery, a pouch battery, and the like.
Fig. 1 shows a schematic diagram of a battery condition testing system 100 according to an embodiment of the present application. Specifically, the battery condition testing system 100 may include a testing box 200, a charging and discharging system 120, an environmental control system 130, and an integrated control system 700.
The test box 200 is used to contain the battery 10 to be tested. Test box 200 may include several test chambers. One test cell 10 may be loaded in each of the test chambers.
Fig. 2 shows a schematic structural diagram of a test box 200 provided according to an embodiment of the present application. In particular, the test box 200 may include a test box body 210 and several drawers 220.
Fig. 3 shows an isometric view of a test cassette body 210 provided in accordance with an embodiment of the present application. The test box body 210 includes a plurality of first receiving cavities 211. The first receiving cavities 211 are arranged in a row from top to bottom. The plurality of first receiving cavities 211 may also be arranged in multiple rows. For convenience of explanation, in the following description of the present application, a connection relationship between the plurality of first receiving cavities 211 is described by taking a column as an example. The number of the first receiving cavities 211 matches the number of the drawers 220. Each receiving cavity 211 may receive one drawer 220. Any two adjacent first accommodation cavities 211 can be separated by a first partition 212. The first partition 212 may be a partition. The diaphragm may be a complete plate-like body, for example as shown in figure 3. The partition board may be provided with a plurality of hollow structures 230. As an example, the hollow 230 may be a circular hole. On one hand, the hollow structure 230 reduces the use of materials and the weight of the test box 200; on the other hand, the plurality of hollow structures 230 may circulate air in the test box body 210, and further make the test environment (e.g., temperature, humidity, and salt haze) of each unit cell consistent. The first partitions 212 may also be a plurality of pipes with both ends connected to the left and right sidewalls of the test box body 210.
Figure 4A shows a front view of the test cassette body 210 shown in figure 3. Fig. 4B shows a view a-a in fig. 4A.
Referring to fig. 4A and 4B, a number of channels 213 may be provided in the test chamber body 210. The channel 213 may be configured to allow the passage of a cooling liquid. As an example, the cooling fluid may be cold water. By way of example, the channel 213 may be a cavity inside a plate-like body that makes up the test cassette body 210. The plate-like bodies constituting the test box body 210 may include, but are not limited to, a first partition 212, a top plate 217, and a bottom plate 218. By way of example, the channel 213 may also be a separate conduit mounted externally to the plate-like body making up the test chamber body 210. In some embodiments, the number of channels 213 is divided into a number of layers. Each layer includes at least one channel. At least one channel of each layer is communicated with each other. The at least one channel of each layer shares an outlet and an inlet.
In some embodiments, a fan (not shown) may also be disposed within the test box body 210. The setting of fan can accelerate the flow of the inside air of test box 200 on the one hand, and on the other hand can provide power for the operating mode test of simulation forced air cooling battery package.
With continued reference to FIG. 2, test box 200 may include several tiers of drawers 220. The number of the drawers 220 matches the number of the first receiving cavities 211 in the test box body 210. One drawer 220 corresponds to one first receiving cavity 211. The drawer 220 can be drawn out of the first receiving cavity 211 by a user; the drawer 220 can also be pushed into the first receiving cavity 211 by a user.
Fig. 5 shows a schematic structural diagram of a drawer 220 provided in an embodiment of the present application. Each tier of drawers 220 may include at least one test chamber 221. A test chamber 221 is used to hold a battery 10 to be tested. Thus, the single batteries in the whole battery pack are respectively contained in different test cavities 221. A current input line and a current output line are provided in each test chamber 221. When the battery working condition testing system 100 works, the anode and the cathode of the single battery 10 to be tested are respectively and electrically connected with the current input line and the current output line in the testing cavity 221. Like this, battery operating mode test system 100 alright with test the operating mode of battery cell 10, solved the technical problem that traditional battery operating mode test system can't test battery cell. The shape of the test chamber 221 may be similar to the shape of the battery 10 to be tested. For example, when the battery 10 to be tested is a square aluminum-shell battery, the testing cavity 221 may be a square receiving cavity as shown in fig. 5; for another example, when the battery 10 to be tested is a cylindrical battery, the testing cavity 221 may be a cylindrical or semi-cylindrical receiving cavity.
The drawer 220 includes a front panel 229, a first sidewall 222, a second sidewall 223, a third sidewall 224, a second partition 225, and a bottom panel 226. The front panel 229, the first side wall 222, the second side wall 223, the third side wall 224, the second partition 225, and the bottom plate 226 may be a metal sheet. The front panel 229 isolates the batteries 10 located within the drawer 220 from the outside environment. The front panel 229, the first side wall 222, the second side wall 223, the third side wall 224, and the bottom panel 226 cooperate to define a drawer. As an example, the front panel 229, the first side wall 222, the second side wall 223, the third side wall 224, and the bottom panel 226 may be connected to each other by welding to form a drawer.
At least one test chamber 221 in the drawer 220 is separated from another by a second partition 225. The second partition 225 may be a baffle, such as shown in FIG. 5. The side walls (including the first side wall 222, the second side wall 223 and the third side wall 224) of the drawer 220 may be provided with a plurality of hollow structures 230. The second partition 225 of the drawer 220 may also have a plurality of cutouts 230. As an example, the hollow 230 may be a circular hole. On one hand, the hollow structure 230 reduces the use of materials and the weight of the test box 200; on the other hand, the plurality of hollowed-out structures 230 can ventilate at least one test cavity 221 in the drawer 220, so that the test environment of the unit cell 10 to be tested in the test cavity 221 of each layer can be kept consistent.
The base plate 226 is used to support a battery 10 to be tested. The bottom plate 226 is divided into at least one region by a second partition 225. One unit cell 10 is placed in each region. Fig. 6 shows a schematic structural diagram of a base plate 226 in an area according to an embodiment of the present application. The bottom plate 226 of the test chamber 221 is provided with a slide 231 and a fixing plate 232. The fixing plate 232 may slide in a direction in which the slide 231 extends to fix the battery 10 to be tested. The arrangement of the slide 231 and the fixing plate 232 enables the size of each test cavity 221 to be adjustable, and improves the compatibility of the battery condition test system 100 for testing batteries of different specifications. For example, when the size of the unit battery 10 in the battery pack is smaller than the size of the test chamber 221, the fixing plate 232 on the slide 231 may be slid, and the battery 10 may be fixed using the fixing plate 232. When the size of the single battery 10 in the battery pack is larger than that of the test cavities 221, the second partition 225 between two or more adjacent test cavities 221 can be detached, so that two or more adjacent test cavities 221 are combined into one large test cavity. Thereafter, the battery 10 may be fixed by adjusting the position of the fixing plate 232 on the slide 231.
With continued reference to FIG. 1, environmental control system 130 is coupled to test chamber 200. The environmental control system 130 can control the environment (e.g., temperature, humidity, and/or salt haze) within the test chamber 200. For example, in some embodiments, the environmental control system 130 may include a temperature and humidity control system 131. The temperature and humidity control system 131 is connected to the test box body 210. The temperature and humidity control system 131 can regulate the temperature and humidity inside the test box body 210. The environmental control system 130 may also include an environmental acquisition system. The environmental collection system may collect target environmental information within the test chamber 200. In some embodiments, the target environmental information may include at least one of temperature, humidity, and salt haze. As an example, environmental control system 130 may include a temperature and humidity acquisition system 132. The temperature and humidity acquisition system 132 is connected with each test cavity 211. The temperature and humidity acquisition system 132 can acquire the temperature and humidity in each test cavity 211 and feed back the temperature and humidity data to the integrated control system 700. In addition, a salt fog control system and a salt fog collection system (not shown) may also be included in the environmental control system 130. The salt spray control system may test the salt spray inside the tank body 210. The salt fog degree acquisition system can be connected with each test cavity 211, acquire the salt fog degree in each test cavity 211, and feed back the salt fog degree data to the integrated control system 700. In some embodiments, environmental control system 130 may also include an external water source. The environmental control system 130 may regulate the humidity within the test chamber 200 via the external water source. In some embodiments, the environmental control system 130 may also include a salt spray liquid tank. The salt spray liquid tank may provide a salt spray. Further, the environmental control system 130 may adjust the salt fog inside the test chamber 200 by the salt fog provided by the salt fog liquid tank.
When the battery condition testing system 100 operates, the charging and discharging system 120 is electrically connected to the battery 10. The charge and discharge system 120 is used to charge or discharge the battery 10 according to design requirements. In some embodiments, the charging and discharging system 100 may include at least one AC/DC bidirectional converter. The AC/DC bidirectional converter is formed by two basic conversion combinations of AC-DC and DC-AC. The AC-DC converter is used to convert AC power into DC power to be supplied to DC consumers, and may be referred to as a rectifier. The DC-AC converter converts DC power to AC power, and may be referred to as an inverter. The rectifier is a rectifying device and has two main functions: firstly, alternating current is converted into direct current, and the direct current is supplied to a load after being filtered or is supplied to an inverter; and secondly, supplying a charging voltage to the storage battery. Thus, it also functions as a charger. In some embodiments, the charging and discharging system 100 may include at least one DC/DC bidirectional converter. The DC-DC bidirectional converter is a device for realizing bidirectional flow of direct current electric energy, and is mainly applied to hybrid electric vehicles, direct current uninterrupted power supply systems and the like. The DC-DC bidirectional converter is applied to occasions needing bidirectional energy flow between direct current power supplies (or direct current source loads) in a system and needs a bidirectional DC-DC converter. Therefore, the direct current motor driving system, the uninterrupted power supply system, the electric automobile system and other systems have application occasions.
In some embodiments, the battery condition testing system 100 may also include an expansion harvesting system 170. During operation of the battery condition testing system 100, the expansion acquisition system 170 is coupled to the battery 10. The swelling acquisition system 170 may acquire the swelling amount of the battery 10 in each test chamber 211 when the battery is charged and discharged, and feed back the swelling amount to the integrated control system 700.
In some embodiments, the battery condition testing system 100 may also include a series-parallel control system 180. When the battery condition testing system 100 works, the series-parallel connection system 180 is electrically connected with the battery 10 to be tested in the testing cavity 221. The series-parallel system 180 may receive control instructions from the integrated control system 700 and control the series-parallel of the plurality of batteries within the test box 200. In this way, different series-parallel connection modes of different battery packs can be flexibly combined by the integrated control system 700.
In some embodiments, the battery condition testing system 100 may further include a water cooling control device 150. The water cooling control device 150 may include several flow valves. The flow valves may be mounted on channels within the test chamber 200. For example, the flow valves may be installed at the inlet and/or outlet of each layer of the channels. The water cooling control device 150 may receive a control command from the integrated control system 700, and control the flow rate of the cooling liquid in the channels through the flow valves. For example, the opening and closing of the passages of each layer can be controlled by the flow valves. For example, during actual testing, all flow valves can be selectively opened to simulate the working condition that each layer of battery has cooling liquid; and optionally closing the flow valve of a certain layer to ensure that no cooling liquid flows in the layer of pipeline so as to simulate the working condition of the layer of battery without cooling liquid. When the battery condition testing system 100 is in operation, a cooling fluid may flow through the channels to cool the batteries 10 to be tested in the test box 200.
In some embodiments, the battery condition testing system 100 may further include an air cooling control device 160. The integrated control system 700 can control the operation state of the fan installed in the test box 200 through the air-cooling control device 160.
The integrated control system 700 may be electrically connected to one or more of the charging and discharging system 120, the environmental control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160, and the series-parallel control system 170. The integrated control system 700 may receive an operation instruction from an operator and send the operation instruction to one or more of the charge and discharge system 120, the environmental control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160, and the series-parallel control system 170. The integrated system 700 may also receive data sent from the charging and discharging system 120, the environmental control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160, and/or the series-parallel control system 170. By way of example, the data may include environmental (e.g., temperature, humidity, and salt haze) data collected by the environmental control system 130 within each test chamber 221. As an example, the data may include the data of the expansion amount of the unit batteries 10 in the respective test chambers 221 collected by the expansion collection system 170. As an example, the data may include charge and discharge performance data, cycle life data, capacity change data, and the like of the unit batteries 10 in the respective test chambers 221 collected by the charge and discharge system 120.
Fig. 7 shows a hardware structure diagram of an integrated control system 700 provided according to an embodiment of the present application.
The integrated control system 700 may include at least one processor 710 the processor 710 for executing computer instructions that may include, for example, routines, programs, objects, components, data structures, procedures, modules, and functions that perform the particular functions described herein.
The integrated control system 700 may also include at least one memory 720. The memory 720 is communicatively coupled to the processor 710. The memory 720 may be a single memory or a group of processors. Memory 720 may store data and/or instructions.
In some embodiments, the memory 720 may store data obtained from the charging and discharging system 120, the environmental control system 130, the expansion collection system 170, the water cooling control system 150, the air cooling control system 160, and/or the series-parallel control system 170. By way of example, the data may include environmental (e.g., temperature, humidity, and salt haze) data collected by the environmental control system 130 within each test chamber 221. As an example, the data may include the data of the expansion amount of the unit batteries 10 in the respective test chambers 221 collected by the expansion collection system 170. As an example, the data may include charge and discharge performance data, cycle life data, capacity change data, and the like of the unit batteries 10 in the respective test chambers 221 collected by the charge and discharge system 120.
In some embodiments, the memory 720 may store data and/or instructions for the processor 710 to perform the exemplary method, such as instructions for the processor 710 to control the operations of the charging and discharging system 120, the environmental control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160, and/or the series-parallel control system 170. In some embodiments, memory 720 may include mass storage, removable storage, volatile read-and-write memory, read-only memory (ROM), and the like, or any combination thereof. Exemplary mass storage devices may include magnetic disks, optical disks, solid state drives, and the like. Exemplary removable storage devices may include flash drives, floppy disks, optical disks, memory cards, zip disks, magnetic tape, and the like. Exemplary volatile read and write memories can include Random Access Memory (RAM).
The integrated control system 700 may also include a data bus 730 for data communication.
The integrated control system 700 may also include a communication interface 740. The communication interface 740 may be connected to the external device 10. The external device 10 may include, but is not limited to, a programmer, a writer, a human-machine interface, a host computer, and the like. The operator can set the computer instruction through the external device 10. An operator can also input an operation instruction to the integrated control system 700 through the external device 10 to control the charging and discharging system 120, the environment control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160 and/or the series-parallel control system 170 to operate.
The integrated control system 700 may also include an input module 750 and an output module 760.
The input module 750 is configured to receive pulse signals including data fed back by the charging and discharging system 120, the environment control system 130, the expansion acquisition system 170, the water cooling control system 150, the air cooling control system 160, and/or the series-parallel control system 170.
The output module 760 is configured to output a control command to the charging and discharging system 120, the environmental control system 130, the expansion collecting system 170, the water cooling control system 150, the air cooling control system 160, and/or the series-parallel control system 170.
The integrated control system 700 may also include a power module 770. The power module 770 provides power to the integrated control system 700.
To sum up, the application provides a battery operating mode test system. The battery working condition testing system can comprise a testing box, a charging and discharging system, an environment control system and an integrated control system. The test chamber may comprise a number of test chambers. A plurality of battery cells in a battery pack to be tested may be loaded into the plurality of test chambers. Each of the plurality of test chambers may house a single cell. Each test chamber is provided with a current input line and a current output line. The charging and discharging system can charge or discharge the single batteries in each test cavity. An environment acquisition system in the environment control system can acquire the test environment in each test cavity. The battery working condition testing system can monitor and simulate the electrical property, the temperature distribution and the expansion change of each battery in the battery pack, and can comprehensively analyze each battery in the battery pack. Therefore, the technical problem that the traditional battery working condition testing system cannot test the single battery is solved.
In conclusion, upon reading the present detailed disclosure, those skilled in the art will appreciate that the foregoing detailed disclosure can be presented by way of example only, and not limitation. Those skilled in the art will appreciate that the present application is intended to cover various reasonable variations, adaptations, and modifications of the embodiments described herein, although not explicitly described herein. Such alterations, improvements, and modifications are intended to be suggested by this application and are within the spirit and scope of the exemplary embodiments of the application.
Furthermore, certain terminology has been used in this application to describe embodiments of the application. For example, "one embodiment," "an embodiment," and/or "some embodiments" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various portions of this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.
It should be appreciated that in the foregoing description of embodiments of the present application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of such feature. Alternatively, various features may be dispersed throughout several embodiments of the application. This is not to be taken as an admission that any of the features of the claims are essential, and it is fully possible for a person skilled in the art to extract some of them as separate embodiments when reading the present application. That is, embodiments in the present application may also be understood as an integration of multiple sub-embodiments. And each sub-embodiment described herein is equally applicable to less than all features of a single foregoing disclosed embodiment.
In some embodiments, numbers expressing quantities or properties useful for describing and claiming certain embodiments of the present application are to be understood as being modified in certain instances by the terms "about", "approximately" or "substantially". For example, "about", "approximately" or "substantially" may mean a ± 20% variation of the value it describes, unless otherwise specified. Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that may vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the embodiments of the application are approximations, the numerical values set forth in the specific examples are reported as precisely as possible.
Each patent, patent application, publication of a patent application, and other material, such as articles, books, descriptions, publications, documents, articles, and the like, cited herein is hereby incorporated by reference. All matters hithertofore set forth herein except as related to any prosecution history, may be inconsistent or conflicting with this document or any prosecution history which may have a limiting effect on the broadest scope of the claims. Now or later associated with this document. For example, if there is any inconsistency or conflict in the description, definition, and/or use of terms associated with any of the included materials with respect to the terms, descriptions, definitions, and/or uses associated with this document, the terms in this document are used.
Finally, it should be understood that the embodiments of the application disclosed herein are illustrative of the principles of the embodiments of the present application. Other modified embodiments are also within the scope of the present application. Accordingly, the disclosed embodiments are presented by way of example only, and not limitation. Those skilled in the art may implement the present application in alternative configurations according to the embodiments of the present application. Thus, embodiments of the present application are not limited to those embodiments described with precision in the application.
Claims (13)
1. A battery condition testing system, comprising:
a test box comprising a number of test chambers configured to load a battery to be tested;
the charging and discharging system is electrically connected with the batteries to be tested in the plurality of testing cavities during working and is used for charging or discharging the batteries to be tested;
the environment control system is connected with the test box and used for controlling the environment in the test box;
and the integrated control system is electrically connected with the charging and discharging system and the environment control system, and is used for sending a control instruction to the charging and discharging system and/or the environment control system or receiving data acquired by the charging and discharging system and/or the environment control system.
2. The battery condition testing system of claim 1, wherein the testing box comprises a plurality of layers of drawers, each of the plurality of layers of drawers comprises at least one testing chamber, and the at least one testing chamber in each layer of drawers is separated by a partition.
3. The battery condition testing system of claim 2, wherein a plurality of hollowed-out structures are arranged on the side wall of each layer of drawer.
4. The battery condition testing system of claim 2, wherein a plurality of hollowed-out structures are arranged on the partition plate in each layer of drawer.
5. The battery condition testing system of claim 2, wherein a slide is provided on the floor of each test chamber; and
each test cavity is internally provided with a fixing plate which is connected to the slide way in a sliding way.
6. The battery condition testing system of claim 1, wherein a plurality of channels are disposed within the test box, the plurality of channels configured to allow passage of a cooling fluid.
7. The battery condition testing system of claim 6, further comprising a water cooling control system, wherein the water cooling control system comprises a plurality of flow valves, and the plurality of flow valves are installed on the plurality of pipelines;
the water cooling control system receives a control instruction from the integrated control system, and the flow of the cooling liquid in the pipelines is controlled through the flow valves.
8. The battery condition testing system of claim 1, wherein a fan is installed in the test box.
9. The battery condition testing system of claim 8, further comprising:
and the air cooling control system controls the work of the fan.
10. The battery condition testing system of claim 1, further comprising:
and the serial-parallel control system is electrically connected with the batteries to be tested in the test cavities during working, receives the instruction of the integrated control system and controls the batteries to be tested to be connected in series or in parallel.
11. The battery condition testing system of claim 1, further comprising:
and the expansion acquisition system is connected with the batteries to be tested in the test cavities during working and acquires the expansion amount of the batteries to be tested in the charging or discharging process.
12. The battery condition testing system of claim 1, wherein the environmental control system comprises: and the environment acquisition system is connected with the plurality of test cavities and is used for acquiring target environment information in the plurality of test cavities during working.
13. The battery condition testing system of claim 12, wherein the target environmental information includes at least one of temperature, humidity, and salt haze.
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|---|---|---|---|
| CN202010455771.5A CN111505514A (en) | 2020-05-26 | 2020-05-26 | Battery working condition test system |
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| CN202010455771.5A CN111505514A (en) | 2020-05-26 | 2020-05-26 | Battery working condition test system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983484A (en) * | 2020-08-14 | 2020-11-24 | 史塔克工业技术(苏州)有限公司 | Battery test system |
| CN114324457A (en) * | 2021-12-22 | 2022-04-12 | 惠州锂威新能源科技有限公司 | Battery material testing system and method |
| CN114440754A (en) * | 2021-08-23 | 2022-05-06 | 北京卫蓝新能源科技有限公司 | Device and method for testing swelling capacity of multiple batteries under different pressures |
-
2020
- 2020-05-26 CN CN202010455771.5A patent/CN111505514A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983484A (en) * | 2020-08-14 | 2020-11-24 | 史塔克工业技术(苏州)有限公司 | Battery test system |
| CN114440754A (en) * | 2021-08-23 | 2022-05-06 | 北京卫蓝新能源科技有限公司 | Device and method for testing swelling capacity of multiple batteries under different pressures |
| CN114440754B (en) * | 2021-08-23 | 2024-04-05 | 北京卫蓝新能源科技有限公司 | Device and method capable of testing expansion amounts of multiple batteries under different pressures |
| CN114324457A (en) * | 2021-12-22 | 2022-04-12 | 惠州锂威新能源科技有限公司 | Battery material testing system and method |
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