CN218546984U - BMS lithium battery management system testing device and testing platform - Google Patents
BMS lithium battery management system testing device and testing platform Download PDFInfo
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- CN218546984U CN218546984U CN202222520696.3U CN202222520696U CN218546984U CN 218546984 U CN218546984 U CN 218546984U CN 202222520696 U CN202222520696 U CN 202222520696U CN 218546984 U CN218546984 U CN 218546984U
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Abstract
The application discloses BMS lithium battery management system testing arrangement belongs to circuit technical field. The device includes: the base circuit board is provided with at least two variable voltage sources with positive and negative electrodes connected in series, and the power output end is connected with the BMS lithium battery management system through an electric connecting wire; the variable voltage source comprises an adjustable reference source chip and a sliding rheostat; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding poke piece; the power supply end interface supplies power to each variable voltage source; and the insulating shell is arranged on the outer side of the basic circuit board, and an opening is formed in one side of the sliding shifting sheet of the sliding rheostat of the variable voltage source. According to the technical scheme, the steps of testing operation of the BMS lithium battery management system can be simplified, and the safety and the testing efficiency of the test are improved.
Description
Technical Field
This application belongs to circuit technical field, concretely relates to BMS lithium battery management system testing arrangement and system.
Background
In recent years, with the increasingly widespread functions of electronic products, the demand of people for electronic products is increasing, and the popularization of electric vehicles and the reduction of the cost price of various intelligent wearable electronic devices increase the demand of lithium batteries. BMS lithium battery management system can intelligent management and maintain the battery unit of each lithium cell, prevents that overcharge and overdischarge from appearing in the battery, prolongs the life of lithium cell, monitors the state of battery, consequently, has become the problem of everybody's concern to BMS lithium battery management system's test.
The method for testing the BMS lithium battery management system mainly comprises the steps of changing voltage data and changing the state of a lithium battery by changing the electric quantity of the lithium battery after the lithium battery is connected with the system. And observing and recording data displayed by the system, and analyzing whether the data change is reasonable or not so as to achieve the purpose of analyzing whether the BMS lithium battery management system is normal or not.
The lithium battery has the problems of poor safety and easy explosion risk when overcharged and overdischarged and the internal and external environments are overheated. If the lithium battery is directly used for testing the system in the early stage of design, personal safety hazards can exist for testers. In addition, although the volume of the lithium battery is small, the multiple lithium batteries are relatively heavy after being connected in series. The voltage of lithium cell can not change fast in addition, and is very inconvenient to BMS lithium battery management system's function demonstration.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a BMS lithium battery management system testing arrangement, aim at solve and directly make the lithium cell be used for testing BMS lithium battery management system and have the inconvenient problem of function demonstration that the security is poor, the debugging is inconvenient, can't quick change battery cell voltage etc. bring. The output voltage of the variable voltage source is changed through the sliding rheostat, the purpose of rapidly simulating the voltage change of the lithium battery can be achieved, and the function demonstration of the BMS lithium battery management system is facilitated. Utilize ya keli insulating material to prevent that the human body from touching the inboard high pressure part as rack shell, improved the security to BMS lithium battery management system early test.
In a first aspect, an embodiment of the present application provides a BMS lithium battery management system testing arrangement, the device includes:
a base circuit board;
the basic circuit board is provided with at least two variable voltage sources of which the positive electrodes and the negative electrodes are connected in series, so that a first power output end and a second power output end are obtained; the first power supply output end and the second power supply output end are connected with a BMS lithium battery management system through an electric connecting wire;
the variable voltage source comprises an adjustable reference source chip and a sliding rheostat; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding poke piece;
the power supply end interface is connected with the at least two variable voltage sources connected in series with the positive electrode and the negative electrode and is used for supplying power to each variable voltage source;
and the insulating shell is arranged on the outer side of the basic circuit board, and an opening is formed in one side of the sliding shifting sheet of the sliding rheostat of the variable voltage source.
Further, the apparatus further comprises:
and the voltage stabilizing diode is connected with the anode and the cathode of the variable voltage source and is used for clamping and protecting the output voltage of the variable voltage source.
Further, the model of the adjustable reference source chip is:
a TL431 tunable reference source chip;
the voltage stabilizing diode is respectively connected with the first end and the third end of the TL431 adjustable reference source chip.
Further, the slide rheostat is connected to:
the TL431 is arranged between the first end and the second end of the reference source chip.
Further, the clamping voltage of the zener diode is: 6.8V.
Furthermore, the number of the variable voltage sources connected in series is 16;
the power supply voltage of the power supply terminal interface is 48V.
In a second aspect, an embodiment of the present application provides a BMS lithium battery management system test platform, the platform includes:
the BMS lithium battery management system testing device of the first aspect.
Further, the platform further comprises:
power supply voltage data processing module:
and the power supply voltage data processing module is used for recording voltage data change between the first power supply output end and the second power supply output end and performing exception identification on the voltage data of the at least two variable voltage sources.
A power state monitoring module;
the power state monitoring module is used for forbidding the BMS lithium battery management system to work when at least one variable voltage source has short circuit, open circuit and overheating fault.
In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor, a memory, and a program or instructions stored on the memory and executable on the processor, where the program or instructions, when executed by the processor, implement the operation steps corresponding to the apparatus according to the first aspect.
In this application embodiment, BMS lithium battery management system testing arrangement includes: a base circuit board; the basic circuit board is provided with at least two variable voltage sources of which the positive electrodes and the negative electrodes are connected in series, so that a first power output end and a second power output end are obtained; the first power supply output end and the second power supply output end are connected with a BMS lithium battery management system through an electric connecting wire; the variable voltage source comprises an adjustable reference source chip and a sliding rheostat; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding plectrum; the power supply end interface is connected with the at least two variable voltage sources connected in series with the positive electrode and the negative electrode and is used for supplying power to each variable voltage source; and the insulating shell is arranged on the outer side of the basic circuit board, and an opening is formed in one side of the sliding shifting sheet of the sliding rheostat of the variable voltage source. Through above-mentioned BMS lithium battery management system testing arrangement, can the quick change battery cell voltage, improved the efficiency to BMS lithium battery management system test, simplified the test procedure, through zener diode as battery cell clamper, increase the insulating protection of shell, improved the security to BMS lithium battery management system test in earlier stage.
Drawings
Fig. 1 is a schematic structural diagram of a BMS lithium battery management system testing device according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a BMS lithium battery management system testing device provided in the second embodiment of the present application;
fig. 3 is a schematic structural diagram of a BMS lithium battery management system test platform provided in the third embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the matters relating to the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, subprograms, and the like.
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived from the embodiments in the present application by a person skilled in the art, are within the scope of protection of the present application.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The BMS lithium battery management system testing device and the testing platform provided by the embodiments of the present application are explained in detail through specific embodiments and application scenarios thereof with reference to the accompanying drawings.
Example one
Fig. 1 is a schematic structural diagram of a BMS lithium battery management system testing device according to an embodiment of the present application. As shown in fig. 1, the method specifically includes the following steps:
a base circuit board 101;
the basic circuit board is provided with at least two variable voltage sources 102 with positive and negative electrodes connected in series to obtain a first power output end and a second power output end; the first power supply output end and the second power supply output end are connected with a BMS lithium battery management system through an electric connecting wire;
the variable voltage source 102 comprises an adjustable reference source chip 1021 and a sliding rheostat 1022; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding plectrum;
a power supply terminal interface 103 connected to the at least two variable voltage sources in series connection with the positive electrode and the negative electrode, for supplying power to each variable voltage source;
and an insulating housing 104 disposed outside the base circuit board and having an opening at one side of a slide paddle of the slide rheostat of the variable voltage source.
Firstly, the execution scene of the scheme can be a scene in which the BMS lithium battery management system needs to be tested. Specifically, the BMS lithium battery management system is one of core subsystems of the battery energy storage system, and is responsible for monitoring and collecting state parameters of the energy storage battery in real time, performing necessary analysis and calculation on the related state parameters, and ensuring safe and reliable operation of the energy storage unit. In this scheme, BMS lithium battery management system testing arrangement shows the lithium battery data that BMS lithium battery management system gathered through the host computer to judge whether BMS lithium battery management system has a problem according to "Cell Vlotage" project in this data, whether can continue work through "Power State" project control BMS lithium battery management system. The upper computer is a computer which can directly send out control commands, and various signal changes can be displayed on a screen of the upper computer.
Based on the above usage scenario, it can be understood that the execution subject of the present application may be a development system of the upper computer, such as test software, and the like, which is not limited herein.
In this embodiment, the base circuit board 101 may be a Printed Circuit Board (PCB). The printed circuit board consists of an insulating base plate, a connecting lead and a welding pad for assembling and welding electronic elements, and has double functions of a conducting circuit and the insulating base plate. The circuit can replace complex wiring, realize the electrical connection among all elements in the circuit, simplify the assembly and welding work of electronic products, reduce the volume of the whole machine, reduce the product cost and improve the quality and the reliability of electronic equipment. The variable voltage source 102 may be a voltage-adjustable power supply, and the voltage is widened on the basis of a voltage-stabilized switching power supply, so as to realize a power supply with an adjustable output voltage in a large range (generally, the output voltage can be continuously adjusted from 0V to a rated value). The voltage-adjustable power supply mainly comprises a voltage reference source, an adjusting tube, error amplification, voltage sampling and current sampling, wherein the voltage-adjustable power supply generally adopts the mode of changing the voltage division proportion of a sampling circuit to realize the adjustment of output voltage.
In the scheme, at least two variable voltage sources with positive and negative poles can be connected in series through a lead and welded on the basic circuit board 101, a first power output end and a second power output end are obtained by the variable voltage sources after the variable voltage sources are connected in series, and the first power output end and the second power output end can be the positive pole and the negative pole which are equivalent to the whole power supply. The above-mentioned power supply overall output terminal may be connected with the BMS lithium battery management system through an electrical connection line, which may be a wire for connecting electrical devices.
In this scheme, the variable voltage source 102 may be composed of an adjustable reference source chip 1021 and a sliding rheostat 1022, wherein the adjustable reference source chip 1021 may control the output voltage of the variable voltage source by using the voltage regulation characteristic, and the principle is as follows: when the input voltage is increased, the output voltage is increased to cause the increase of output sampling, at the moment, the internal circuit increases the current flowing through the internal circuit by adjustment, and the current limiting circuit is increased, so that the voltage drop of the current limiting resistor is increased, and the output voltage is equal to the input voltage, reduces the voltage drop of the current limiting resistor, reduces the output voltage and realizes voltage stabilization. The sliding rheostat 1022 can change the resistance by changing the length of the resistance wire connected to the circuit part, thereby achieving the purpose of voltage division. The resistance wire of the sliding rheostat 1022 is typically a nichrome alloy with a high melting point and a high resistance. The metal rod of the sliding resistor 1022 is generally a metal with small resistance, so when the cross-sectional area of the resistor is fixed, the longer the resistance wire is, the larger the resistance is, and the shorter the resistance wire is, the smaller the resistance is. The length of the resistance wire connected into the circuit is changed by changing the position of the sliding plectrum, and then the divider resistance is determined. It is understood that each variable voltage source 102 may include other peripheral devices such as capacitors, resistors, etc. in addition to the adjustable reference source chip 1021 and the sliding rheostat 1022.
In this embodiment, the power supply terminal interface 103 may be configured to provide an input voltage for the variable voltage source 102, and is connected to at least two variable voltage sources connected in series between the positive electrode and the negative electrode through a wire.
Insulating casing 104 can be by the resistivity height, is difficult to electrically conductive material and makes, and is concrete, can be ya keli insulating casing for the protection prevents that the human body from touching inboard high-pressure part, solves BMS lithium battery management system test safety problem earlier stage.
In the embodiment of the application, at least two variable voltage sources with the positive electrode and the negative electrode connected in series are arranged on the basic circuit board to obtain a first power output end and a second power output end; the first power supply output end and the second power supply output end are connected with a BMS lithium battery management system through an electric connecting wire; the variable voltage source comprises an adjustable reference source chip and a sliding rheostat; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding poke piece; the power supply end interface is connected with at least two variable voltage sources connected with the anode and the cathode in series and used for supplying power to each variable voltage source; and the insulating shell is arranged on the outer side of the basic circuit board, and an opening is formed in one side of the sliding pull sheet of the sliding rheostat of the variable voltage source.
The technical scheme that this embodiment provided can change battery cell voltage fast, has improved the efficiency to BMS lithium battery management system test, has simplified the test procedure, through increasing the insulating protection of shell, has improved the security to BMS lithium battery management system test in earlier stage.
Example two
Fig. 2 is a schematic structural diagram of a BMS lithium battery management system testing device provided in the second embodiment of the present application. As shown in fig. 2, the method specifically includes the following steps:
and the voltage stabilizing diode 105 is connected with the anode and the cathode of the variable voltage source and is used for clamping and protecting the output voltage of the variable voltage source.
In this embodiment, the zener diode 105 may be a voltage stabilizing diode that utilizes the PN junction reverse breakdown state to allow its current to vary over a wide range while maintaining substantially constant voltage. The diode is a semiconductor device having a high resistance up to a critical reverse breakdown voltage. At the critical breakdown point, where the reverse resistance decreases to a small value, the current increases and the voltage remains constant in the low resistance region, zener diodes 105 can be connected in series for use at higher voltages, and higher zener voltages can be obtained by series connection. The clamp protection can be a measure for limiting the potential of a certain point to a specified potential, and is an overvoltage protection technology, and the overvoltage protection technology can be a protection mode for disconnecting a power supply or reducing the voltage of a controlled device when the voltage of a protected line exceeds a preset maximum value.
In this embodiment, optionally, the clamping voltage of the zener diode 105 is 6.8V. Through the clamping voltage who sets up zener diode, can protect variable voltage source's output voltage, prevent that output voltage is too high to cause the damage to BMS lithium battery management system, improved the device's stability.
In this scheme, because some overvoltage phenomena can produce in battery plug or the charging process, the BMS chip has the input voltage scope, if variable voltage source 102 surpassed the threshold value in above-mentioned scope to BMS lithium battery management system input voltage value and can damaged the BMS chip, each TL431 also has the maximum output voltage simultaneously. Therefore, each output voltage of the variable voltage source 102 can be protected by clamping with the zener diode 105 to prevent the output voltage from exceeding the input voltage threshold of the BMS lithium battery management system. The protection mode can be that two diodes are connected in series in a reverse direction and connected with the anode and the cathode of the variable voltage source, only one diode can be conducted at one time, and the other diode is in an off state, so that the forward and reverse voltage drop of the diode can be clamped below the forward conduction voltage drop of 0.5V-0.7V, and the purpose of protecting the circuit is achieved. When the cathode of the diode is grounded, and the potential of the anode terminal circuit is higher than the ground, the diode is conducted to pull down the potential, that is, the anode terminal circuit is clamped to zero potential or below zero potential. When the anode of the diode is grounded, the potential of the cathode circuit is higher than the ground, the diode is cut off, and the potential of the diode is not influenced by any action of the diode.
In this embodiment, optionally, the model of the adjustable reference source chip 1021 is: the TL431 adjustable reference source chip. As shown in fig. 2, the zener diode 105 is respectively connected to the first terminal and the third terminal of the TL431 adjustable reference source chip. The sliding varistor 1022 is connected between the first end and the second end of the TL431 adjustable reference source chip. The TL431 can be a three-terminal adjustable shunt reference voltage source with good thermal stability, and its output voltage can be arbitrarily set to any value from Vref (2.5V) to 36V by using two resistors, where Vref is an internal 2.5V reference source connected to the inverting input terminal of the operational amplifier. The first end, the second end and the third end of the TL431 adjustable reference source chip may be three pins of the chip: a CATHODE (CATHODE), an ANODE (ANODE) and a reference terminal (REF). It can be known from the characteristic of the operational amplifier that only when the voltage at the REF terminal (reference terminal) is very close to Vref (2.5V), a stable non-saturation current will pass through the transistor, and the current passing through the transistor will vary from 1 to 150mA with a small variation of the REF terminal voltage. The specific working principle of TL431 is: when the input voltage is increased, the output voltage is increased to cause the increase of output sampling, at the moment, the internal circuit increases the current flowing through the internal circuit by adjustment, and the current limiting circuit is increased, so that the voltage drop of the current limiting resistor is increased, and the output voltage is equal to the input voltage, reduces the voltage drop of the current limiting resistor, reduces the output voltage and realizes voltage stabilization. The output voltage of the variable voltage source can be stabilized by using the TL431 adjustable reference source chip, so that the output voltage is prevented from being too high, and the test safety is improved. Meanwhile, the sliding rheostat is used for adjusting the output voltage, the purpose of quickly changing the voltage is achieved, and the testing efficiency is improved.
In this scheme, BMS lithium battery management system testing arrangement can be to link to each other lithium cell simulation rack with BMS lithium battery management system through the electric connecting wire, and wherein, lithium cell simulation rack can be with TL431 adjustable reference source chip and slide rheostat as the core device. Each TL431 adjustable reference source circuit is equivalent to one single battery, the single battery can be a single battery without series-parallel combination, the output range of the single voltage is controlled between 2.5V and 4.5V by designing external circuit capacitance and resistance parameters, wherein the external capacitance and resistance parameters can be capacitors and resistance values which can control the voltage of a variable voltage source except for TL 431. Because the voltage of the lithium battery can be gradually reduced along with the lapse of the electric quantity, the higher the charging and discharging voltage of the lithium battery is, the larger the capacity is, therefore, the output voltage of the lithium battery can be reduced only by discharging the lithium battery when the lithium battery is practically used for testing, and the output voltage of the lithium battery is between 2.7V and 4.2V under the general condition. The simulation rack can change the TL431 output voltage by shifting the sliding potentiometer under the condition that the lithium battery is not really utilized, so that the voltage change of the single lithium battery is simulated.
In this embodiment, optionally, the number of the variable voltage sources connected in series is 16, and the power supply voltage of the power supply terminal interface is 48V. Because the voltage output range of each variable voltage source is between 2.5V and 4.5V, and the output voltage of the lithium battery is between 2.7V and 4.2V, the output voltage range of the lithium battery can be contained by connecting 16 variable voltage sources in series, and the output voltage of the lithium battery in series is simulated. Meanwhile, the power supply voltage of the power supply terminal interface is set to be 48V, so that the output voltage of the variable voltage source is prevented from being too high, and the reliability of the test of the BMS lithium battery management system is improved.
In the technical scheme provided by this embodiment, the zener diode is connected to the anode and the cathode of the variable voltage source and is used for performing clamping protection on the output voltage of the variable voltage source. The number of the variable voltage sources connected in series is 16, and the voltage stabilizing diodes are respectively connected with the first end and the third end of the TL431 adjustable reference source chip. The sliding rheostat is connected between the first end and the second end of the TL431 adjustable reference source chip. The lithium battery simulation rack takes a TL431 adjustable reference source as a core component, realizes the function of simulating the voltage of a lithium battery by configuring the resistance-capacitance except the part outside a chip, and changes the voltage change of a single lithium battery by a sliding potentiometer. The lithium battery simulation rack is connected with a BMS lithium battery management system through an electric connecting wire to form a BMS lithium battery management system testing device, wherein the TL431 adjustable reference source chip and the sliding rheostat are used as core devices of the lithium battery simulation rack.
The clamping protection is carried out on the output voltage of the variable voltage source by adding the voltage stabilizing diode, the chip of the BMS lithium battery management system is effectively protected, the safety of the test is improved, the voltage change of the lithium battery can be simulated under the condition that the lithium battery is not used by utilizing the TL431 adjustable reference source chip and the sliding rheostat, the voltage of the single battery is rapidly changed, and the feasibility and the operating efficiency of the test operation are improved.
EXAMPLE III
Fig. 3 is a schematic structural diagram of a BMS lithium battery management system test platform provided in the third embodiment of the present application. As shown in fig. 3, the method specifically includes the following steps:
the BMS lithium battery management system comprises a power supply voltage data processing module 301;
and the power supply voltage data processing module is used for recording voltage data change between the first power supply output end and the second power supply output end and carrying out abnormity identification on the voltage data of the at least two variable voltage sources.
The BMS lithium battery management system comprises a power state monitoring module 302;
the power state monitoring module is used for forbidding the BMS lithium battery management system to work when at least one variable voltage source has short circuit, open circuit and overheating fault.
In this solution, the power voltage data processing module 301 may record the voltage data change of the variable voltage source 102 when the sliding rheostat 1022 is toggled in a coding manner, and since the voltage of the lithium battery decreases with the decrease of the electric quantity, the voltage of the corresponding single battery may be changed by toggling the sliding rheostat 1022, so as to achieve the purpose of rapidly simulating the electric quantity change of the lithium battery. And the BMS lithium battery management system judges whether the functions of the lithium batteries are normal or not according to the data change condition recorded by the power supply voltage data processing module.
In this embodiment, the power status monitoring module 302 may monitor the status of the variable voltage source 102, and since the variable voltage source simulates the lithium battery to be tested, when any one variable voltage source has a short circuit, an open circuit, or an overheat fault, the module may prohibit the operation of the BMS lithium battery management system. The power status monitoring module 302 may monitor the variable voltage source in real time through encoding, determine whether there is a short circuit, a disconnection, and an overheating fault in the variable voltage source status by establishing a database, where the database may be a voltage value range of the variable voltage source under normal conditions, and if there is a voltage value that does not match the data range in the database, send an instruction to prohibit the BMS lithium battery management system from continuing to operate in a wireless transmission manner.
In the scheme, after the lithium battery simulation rack and the BMS board platform are built, lithium battery data collected by the BMS lithium battery management system are displayed through the upper computer, items needing attention are 'Cell Vlogage' and 'Power State', wherein the 'Cell Vlogage' is used for simulating the voltage condition of the lithium battery in practical application, namely the data are recorded by the Power supply voltage data processing module 301. The voltage of the corresponding single battery can be changed by shifting the slide rheostat, the purpose of quickly simulating the change of the electric quantity of the lithium battery is achieved, and the index for judging whether the function of the lithium battery is normal or not is provided. The Power State is used for monitoring the State of the lithium battery management system, namely the Power State monitoring module 302, and when the lithium battery has faults such as short circuit, open circuit and overheating, the system sets the Power State to be fault and prohibits the lithium battery management system from continuously working.
According to the technical scheme, the BMS lithium battery management system comprises a power supply voltage data processing module and a power supply state monitoring module, wherein the power supply voltage data processing module is used for recording the change of power supply voltage when the slide rheostat is pulled, and the power supply state monitoring module is used for monitoring whether any one variable voltage source has short circuit, open circuit and overheating fault and timely sending out an instruction to prohibit the BMS lithium battery management system from continuously working when the fault occurs.
Through utilizing the variable voltage source to simulate the voltage and the state of lithium cell, build BMS lithium battery management system test platform, set up power supply voltage data processing module at this platform, can judge whether normal operating is gone on to BMS lithium battery management system, still set up power state monitoring module simultaneously, can improve the security to the test of BMS lithium battery management system.
The testing device of the BMS lithium battery management system in the embodiment of the application can be a device, and can also be a component, an integrated circuit or a chip in a terminal. The device can be mobile electronic equipment or non-mobile electronic equipment. By way of example, the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palm top computer, a vehicle-mounted electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook or a Personal Digital Assistant (PDA), and the like, and the non-mobile electronic device may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine or a self-service machine, and the like, and the embodiment of the present application is not particularly limited.
The device for detecting the location of the fault point inside the cable in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which is not specifically limited in the embodiment of the present application.
Example four
Fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application. As shown in fig. 4, an electronic device 400 is further provided in this embodiment of the present application, and includes a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and executable on the processor 401, where the program or the instruction is executed by the processor 401 to implement the processes of the BMS lithium battery management system testing device embodiment, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.
It should be noted that the electronic device in the embodiment of the present application includes the mobile electronic device and the non-mobile electronic device described above.
EXAMPLE five
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction realizes each process of the above-mentioned BMS lithium battery management system testing device and testing platform embodiment, and can achieve the same technical effect, and in order to avoid repetition, the detailed description is omitted here.
The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
Example six
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running programs or instructions, so that the processes of the BMS lithium battery management system test method embodiment can be realized, the same technical effects can be achieved, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as system-on-chip, system-on-chip or system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the present embodiments are not limited to those precise embodiments, which are intended to be illustrative rather than restrictive, and that various changes and modifications may be effected therein by one skilled in the art without departing from the scope of the appended claims.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (9)
1. The utility model provides a BMS lithium battery management system testing arrangement which characterized in that, the device includes:
a base circuit board;
the basic circuit board is provided with at least two variable voltage sources of which the positive electrodes and the negative electrodes are connected in series, so that a first power output end and a second power output end are obtained; the first power supply output end and the second power supply output end are connected with a BMS lithium battery management system through an electric connecting wire;
the variable voltage source comprises an adjustable reference source chip and a sliding rheostat; the adjustable reference source chip is used for controlling the output voltage of the variable voltage source; the sliding rheostat is used for determining a voltage dividing resistance value based on the position of the sliding poke piece;
the power supply end interface is connected with the at least two variable voltage sources connected in series with the positive electrode and the negative electrode and is used for supplying power to each variable voltage source;
and the insulating shell is arranged on the outer side of the basic circuit board, and an opening is formed in one side of the sliding pull sheet of the sliding rheostat of the variable voltage source.
2. The BMS lithium battery management system testing device of claim 1, characterized in that the device further comprises:
and the voltage stabilizing diode is connected with the anode and the cathode of the variable voltage source and is used for clamping and protecting the output voltage of the variable voltage source.
3. The BMS lithium battery management system testing device of claim 2, wherein the type of the adjustable reference source chip is: a TL431 adjustable reference source chip;
the voltage stabilizing diode is respectively connected with the first end and the third end of the TL431 adjustable reference source chip.
4. The BMS lithium battery management system testing device of claim 3, wherein the sliding varistor is connected between a first end and a second end of the TL431 adjustable reference source chip.
5. The BMS lithium battery management system testing device of claim 2, wherein the clamping voltage of the zener diode is 6.8V.
6. The BMS lithium battery management system testing device of claim 2, wherein the number of series connections of the variable voltage sources is 16;
the power supply voltage of the power supply terminal interface is 48V.
7. A BMS lithium battery management system test platform, characterized in that the BMS lithium battery management system test platform comprises the BMS lithium battery management system test device as set forth in any one of claims 1 to 6.
8. The BMS lithium battery management system test platform of claim 7, wherein the BMS lithium battery management system comprises a supply voltage data processing module;
and the power supply voltage data processing module is used for recording voltage data change between the first power supply output end and the second power supply output end and carrying out abnormity identification on the voltage data of the at least two variable voltage sources.
9. The BMS lithium battery management system test platform of claim 7, wherein the BMS lithium battery management system comprises a power status monitoring module;
and the power supply state monitoring module is used for forbidding the BMS lithium battery management system to work when at least one variable voltage source has short circuit, open circuit and overheating fault.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222520696.3U CN218546984U (en) | 2022-09-21 | 2022-09-21 | BMS lithium battery management system testing device and testing platform |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222520696.3U CN218546984U (en) | 2022-09-21 | 2022-09-21 | BMS lithium battery management system testing device and testing platform |
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