CN219533289U - Battery replacement BMS function detection device - Google Patents

Abstract

The utility model discloses a power conversion BMS function detection device, and relates to the technical field of power conversion BMS. The battery replacement BMS function detection device comprises a main control module, a charging detection module, a heating detection module, a discharging detection module, a pre-charging detection module, a charging awakening detection module and a discharging awakening detection module, wherein the charging detection module, the heating detection module, the discharging detection module, the pre-charging detection module, the charging awakening detection module and the discharging awakening detection module are electrically connected with the main control module. According to the battery replacement BMS function detection device, the battery replacement BMS CAN be subjected to functional detection, and functions such as charging, discharging, heating, pre-charging, secondary protection, charging awakening, discharging awakening, RS485, CAN (controller area network) functions, storage functions and dormancy power consumption are tested, so that defective products are screened out, the testing efficiency of the battery replacement BMS is improved, and the product qualification rate and the production efficiency are further improved.

Description

Battery replacement BMS function detection device

Technical Field

The utility model relates to the technical field of battery-changing BMS detection, in particular to a battery-changing BMS function detection device.

Background

The lithium battery is used on the electric vehicle more and more commonly, the charging safety problem and the charging time length of the lithium battery are also more and more concerned and valued, the lithium battery of the electric vehicle has certain potential safety hazards in the charging process, the charging time is longer, and the charging time for electric vehicle owners such as take-away cellular and couriers cannot be waited for 1 to 2 hours. The problem of high charging safety and long charging time of the lithium battery can be solved by adopting the battery replacement technology, however, the battery replacement BMS belongs to a new product in the industry, the functional and performance requirements are different from those of the common BMS (Battery Management System), and no special detection device for the battery replacement BMS exists in the industry at present.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a device for detecting the functions of a battery-changing BMS, which can detect various functions of the battery-changing BMS.

According to an embodiment of the utility model, a battery-changing BMS function detection device comprises:

a main control module;

the charging detection module is electrically connected with the main control module;

the heating detection module is electrically connected with the main control module;

the discharge detection module is electrically connected with the main control module;

the pre-charging detection module is electrically connected with the main control module;

the charging wake-up detection module is electrically connected with the main control module;

and the discharge wake-up detection module is electrically connected with the main control module.

According to some embodiments of the utility model, the system further comprises a secondary protection detection module, wherein the secondary protection detection module is electrically connected with the main control module.

According to some embodiments of the utility model, the system further comprises a switching value detection module, wherein the switching value detection module is electrically connected with the main control module.

According to some embodiments of the utility model, the device further comprises a power supply module electrically connected with the main control module, the charging detection module, the heating detection module, the discharging detection module and the pre-charging detection module, respectively.

According to some embodiments of the utility model, the system further comprises a communication detection module, wherein the communication detection module is electrically connected with the main control module.

According to some embodiments of the utility model, the system further comprises a storage function detection module, wherein the storage function detection module is electrically connected with the main control module.

According to some embodiments of the utility model, the charging detection module includes a first photo-coupler, a first end of an input side of the first photo-coupler is connected to a first power supply through a first resistor, a second end of the input side of the first photo-coupler is connected to a charging MOS tube of the battery-switching BMS through a first diode, a first end of an output side of the first photo-coupler is electrically connected to the main control module, a second end of the output side of the first photo-coupler is grounded, and a first capacitor is further disposed between the first end and the second end of the output side of the first photo-coupler.

According to some embodiments of the utility model, the charge wakeup detection module includes:

the base electrode of the first triode is connected with the main control module through a second resistor, and the emitting electrode of the first triode is grounded;

the first end of the electromagnetic coil of the relay is connected with a second power supply, and the second end of the electromagnetic coil of the relay is connected with the collector electrode of the first triode;

and the charger is electrically connected with the input end of the relay, and the output end of the relay is electrically connected with the battery of the battery-changing BMS.

According to some embodiments of the utility model, the discharge wake-up detection module comprises:

the base electrode of the second triode is connected with the main control module through a third resistor, and the emitting electrode of the second triode is grounded;

the first end of the input side of the second photoelectric coupler is connected with a third power supply through a fourth resistor, the second end of the input side of the second photoelectric coupler is connected with the collector of the second triode, the first end of the output side of the second photoelectric coupler is connected with the positive electrode end of the battery replacement BMS through a fifth resistor and a sixth resistor which are mutually connected in parallel, and the second end of the output side of the second photoelectric coupler is connected with the negative electrode end of the battery replacement BMS.

According to some embodiments of the utility model, the control key is electrically connected with the main control module.

The battery-changing BMS function detection device provided by the embodiment of the utility model has at least the following beneficial effects: can carry out functional detection to trading electric BMS, realize trading electric BMS's the test of functions such as charging, discharging, heating, pre-charge, charge awakening and discharge awakening to remove the defective products, and improve electric BMS's test efficiency to trading, and then promote product qualification rate and production efficiency.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

fig. 1 is a schematic structural diagram of a power conversion BMS function detection device according to an embodiment of the present utility model;

fig. 2 is a schematic circuit diagram of a main control module according to an embodiment of the present utility model;

FIG. 3 is a schematic circuit diagram of a memory function detection module and a control key according to an embodiment of the present utility model;

fig. 4 is a schematic circuit diagram of a charge detection module and a heat detection module according to an embodiment of the present utility model;

FIG. 5 is a schematic circuit diagram of a discharge detection module and a pre-charge detection module according to an embodiment of the present utility model;

fig. 6 is a schematic circuit diagram of a charge wake-up detection module, a discharge wake-up detection module and a secondary protection detection module according to an embodiment of the present utility model;

fig. 7 is a schematic circuit diagram of a switching value detection module according to an embodiment of the present utility model;

fig. 8 is a schematic circuit diagram of a power supply module according to an embodiment of the utility model;

FIG. 9 is a schematic circuit diagram of a first portion of a communication detection module according to an embodiment of the utility model;

FIG. 10 is a schematic circuit diagram of a second portion of the communication detection module according to an embodiment of the present utility model;

reference numerals:

the main control module 100, the charge detection module 200, the heating detection module 300, the discharge detection module 400, the pre-charge detection module 500, the charge wake-up detection module 600, the discharge wake-up detection module 700, the secondary protection detection module 800, the switching value detection module 900, the ACC detection unit 910, the FIRE detection unit 920, the KEY detection unit 930, the power supply module 1000, the communication detection module 1100, the storage function detection module 1200, the control KEY 1300, the test fixture 1400, the battery replacement BMS1500, and the battery 1600.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

As shown in fig. 1, the battery-replacement BMS function detection device according to an embodiment of the present utility model includes a main control module 100, a charge detection module 200 electrically connected with the main control module 100, a heating detection module 300, a discharge detection module 400, a pre-charge detection module 500, a charge wake-up detection module 600, and a discharge wake-up detection module 700.

According to the battery replacement BMS function detection device, the battery replacement BMS1500 can be connected through the test fixture 1400, and the battery replacement BMS1500 is subjected to function detection; test fixture 1400 can include base, test board and elevating system, and the test board sets up on the base for place the battery charging BMS1500 that awaits measuring, be provided with the probe on the elevating system, when the probe and the function IO mouth contact that battery charging BMS1500 corresponds, can carry out the function detection to battery charging BMS 1500. The main control module 100 is responsible for sending and receiving signals and controlling the working states of other modules, so that the function detection of the battery-powered BMS1500 is realized, and the test result is sent to the upper computer 1700 for display and storage. The main control module 100 and the upper computer 1700 can communicate through an RS485 communication mode, and can also communicate through other common wired or wireless communication modes. As shown in fig. 2, in this example, the main control module 100 adopts a single-chip microcomputer U5, and the model of U5 may be STM32F103RCT6, or may be another model. The interface J6 shown in FIG. 2 is a program download port of the single-chip microcomputer U5, and the interface J5 is a reserved USART serial port of the single-chip microcomputer U5.

The specific circuit design of the charge detection module 200 and the heat detection module 300 according to the embodiment of the present utility model may refer to fig. 4, and two charge detection modules 200 and one heat detection module 300 are shown in fig. 4. Taking one of the charge detection modules 200 as an example, the charge detection module 200 includes a first photo-coupler U7, a first end of an input side of the first photo-coupler U7 is connected to a first power supply 5v_chg through a first resistor R46, a second end of the input side of the first photo-coupler U7 is connected to a charge MOS tube (i.e., an interface J8) of the battery-replacement BMS1500 through a first diode D9, a first end of an output side of the first photo-coupler U7 is electrically connected to a chg1_mos pin of the main control module 100, a second end of the output side of the first photo-coupler U7 is grounded, and a first capacitor C42 is further disposed between the first end and the second end of the output side of the first photo-coupler U7. For another charge detection module 200, the charge detection module includes a photo-coupler U8, a first end of an input side of the photo-coupler U8 is connected to a power supply 5v_chg through a resistor R49, a second end of the input side of the photo-coupler U8 is connected to a charge MOS tube (i.e., an interface J9) of the battery-replacement BMS1500 through a diode D10, a first end of an output side of the photo-coupler U8 is electrically connected to a chg2_mos pin of the main control module 100, a second end of the output side of the photo-coupler U8 is grounded, and a capacitor C44 is further disposed between the first end and the second end of the output side of the photo-coupler U8. The heating detection module 300 includes a photo-coupler U10, a first end of an input side of the photo-coupler U10 is connected to a power supply 5v_chg through a resistor R53, a second end of the input side of the photo-coupler U10 is connected to a heating MOS tube (i.e., an interface J11) of the battery-switching BMS1500 through a diode D12, a first end of an output side of the photo-coupler U10 is electrically connected to a heat_mos pin of the main control module 100, a second end of the output side of the photo-coupler U10 is grounded, and a capacitor C46 is further disposed between the first end and the second end of the output side of the photo-coupler U10.

The charging detection module 200 and the heating detection module 300 are both tested by adopting a photoelectric coupler, the input side of the photoelectric coupler is connected with two ends of a charging MOS tube/heating MOS tube of the battery replacement BMS1500, when the charging MOS tube/heating MOS tube of the battery replacement BMS1500 is in a conducting state, a light emitting diode in the photoelectric coupler is driven to emit light with a certain wavelength, the light emitting diode is received by a light detector to generate photocurrent, the photocurrent is further amplified and output, the output low level is returned to the main control module 100 through IO, after the main control module 100 receives the low level, the charging MOS tube/heating MOS tube of the battery replacement BMS1500 is judged to be normally opened, the passing result of the output test is given to the upper computer 1700, and the charging/heating function of the battery replacement BMS1500 is displayed to be normal on the upper computer 1700. The photoelectric coupler is used for testing, because the signals of the photoelectric coupler are transmitted in one direction, the input end and the output end of the photoelectric coupler are completely electrically isolated, the output signals have no influence on the input end, the anti-interference capability is strong, the working is stable, no contact exists, the service life is long, and the transmission efficiency is high.

The specific circuit design of the discharge detection module 400 and the precharge detection module 500 according to the embodiment of the present utility model may refer to fig. 5, and two discharge detection modules 400 and one precharge detection module 500 are shown in fig. 5. One of the discharge detection modules 400 includes a photo-coupler U6, a first end of an input side of the photo-coupler U6 is connected to a power supply 5v_dsg through a resistor R45, a second end of the input side of the photo-coupler U6 is connected to a discharge MOS tube (i.e., an interface J7) of the battery-replacement BMS1500 through a diode D8, a first end of an output side of the photo-coupler U6 is electrically connected to a dsg1_mos pin of the main control module 100, a second end of the output side of the photo-coupler U6 is grounded, and a capacitor C43 is further disposed between the first end and the second end of the output side of the photo-coupler U6. For another discharge detection module 400, the other discharge detection module includes a photo-coupler U9, a first end of an input side of the photo-coupler U9 is connected to a power supply 5v_dsg through a resistor R50, a second end of the input side of the photo-coupler U9 is connected to a discharge MOS tube (i.e., an interface J10) of the battery-replacement BMS1500 through a diode D11, a first end of an output side of the photo-coupler U9 is electrically connected to a dsg2_mos pin of the main control module 100, a second end of the output side of the photo-coupler U9 is grounded, and a capacitor C45 is further disposed between the first end and the second end of the output side of the photo-coupler U9. The pre-charge detection module 500 includes a photo-coupler U11, a first end of an input side of the photo-coupler U11 is connected to a power supply 5v_dsg through a resistor R54, a second end of the input side of the photo-coupler U11 is connected to a pre-charge MOS tube (i.e., an interface J12) of the battery-replacement BMS1500 through a diode D13, a first end of an output side of the photo-coupler U11 is electrically connected to a per_mos pin of the main control module 100, a second end of the output side of the photo-coupler U11 is grounded, and a capacitor C47 is further disposed between the first end and the second end of the output side of the photo-coupler U11.

The discharge detection module 400 and the pre-charge detection module 500 are both tested by adopting a photoelectric coupler, the input side of the photoelectric coupler is connected with two ends of a discharge MOS tube/pre-charge MOS tube of the battery replacement BMS1500, when the discharge MOS tube/pre-charge MOS tube of the battery replacement BMS1500 is in a conducting state, a light emitting diode in the photoelectric coupler is driven to emit light with a certain wavelength, the light emitting diode is received by a light detector to generate photocurrent, the photocurrent is further amplified and output, the output low level is returned to the main control module 100 through IO, after the main control module 100 receives the low level, the discharge MOS tube/pre-charge MOS tube of the battery replacement BMS1500 is judged to be normally opened, the passing result of the test is output to the upper computer 1700, and the discharge/pre-charge function of the battery replacement BMS1500 is displayed to be normal by the upper computer 1700.

As shown in fig. 5, in some embodiments of the present utility model, the wake-up detection module 600 includes a first triode Q6, a relay K1 and a charger (connected through an interface J15), wherein a base electrode of the first triode Q6 is connected to the chg_ext pin of the main control module 100 through a second resistor R63, an emitter electrode of the first triode Q6 is grounded, a resistor R64 is disposed between the base electrode and the emitter electrode of the first triode Q6, a collector electrode of the first triode Q6 is electrically connected to a second end of an electromagnetic coil of the relay K1 (i.e., a 1 st pin of the relay K1), a first end of the electromagnetic coil of the relay K1 (i.e., a 16 th pin of the relay K1) is connected to a second power supply 12V, an input end of the charger and the relay K1 (i.e., 8 th and 9 th pins of the relay K1) are electrically connected to positive and negative electrodes p+ and P-of a battery 1600 of the battery of the inverter BMS. The charger is used for simulating to charge the battery 1600 in an actual use scene, the relay K1 is used for controlling the switch of the charger, when the main control module 100 outputs a high level to the control end of the relay K1, the relay K1 is conducted, the charger is controlled to be opened, voltage is applied to the P+ and P-two ends of the battery 1600, the battery 1600 is charged, at the moment, the control module 100 receives the low level, so that the charging awakening function of the battery replacement BMS1500 is judged to be normal, a test passing result is output to the upper computer 1700, and the charging awakening function is displayed on the upper computer 1700 to be normal.

As shown in fig. 5, in some embodiments of the present utility model, the discharge wake-up detection module 700 includes a second triode Q5 and a second photo coupler U13, wherein a base electrode of the second triode Q5 is connected to a dsg_ext pin of the main control module 100 through a third resistor R61, an emitter electrode of the second triode Q5 is grounded, and a resistor R62 is disposed between the base electrode and the emitter electrode of the second triode Q5; the first end of the input side of the second photo coupler U13 is connected to the third power supply 3v3_mcu through the fourth resistor R59, the second end of the input side of the second photo coupler U13 is connected to the collector of the second triode Q5, the first end of the output side of the second photo coupler U13 is connected to the positive electrode p+ of the battery 1600 of the battery replacement BMS1500 through the fifth resistor R58 and the sixth resistor R60 connected in parallel, and the second end of the output side of the second photo coupler U13 is connected to the negative electrode P-of the battery 1600 of the battery replacement BMS 1500. The main control module 100 sends a high level to the second photoelectric coupler U13 through IO, the second photoelectric coupler U13 is driven to work, at the moment, the fifth resistor R58 and the sixth resistor R60 are connected in parallel to the P+ and P-two ends of the power conversion BMS1500, the P+ and P-ends of the power conversion BMS1500 are simulated to be connected to loads, the power conversion BMS1500 is awakened when the detecting resistor of the power conversion BMS1500 detects that the current is higher than a certain value, at the moment, the main control module 100 receives a low level, the discharge awakening function of the power conversion BMS1500 is judged to be normal, the output test passing result is sent to the upper computer 1700, and the upper computer 1700 displays the discharge awakening function to be normal.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection device further includes a secondary protection detection module 800, and the secondary protection detection module 800 is electrically connected with the main control module 100. As shown in fig. 6, in this example, the secondary protection detection module 800 includes a photo-coupler U12, an input side of the photo-coupler U12 is electrically connected to a secondary protection MOS tube (i.e., an interface J13) of the battery-replacement BMS1500, and an output side of the photo-coupler U12 is connected to a fus_mos pin of the main control module 100. When the secondary protection MOS tube of the battery replacement BMS1500 is conducted, the voltage is applied to blow the three-terminal fuse when the short circuit is simulated, so that the loop of the battery replacement BMS1500 is blocked, and the protection of the battery 1600 is realized; at this time, the light emitting diode in the photo coupler U12 is driven, the output low level returns to the main control module 100 through IO, after the main control module 100 receives the low level, it is determined that the secondary protection MOS tube of the battery replacement BMS1500 is normally opened, the test passing result is output to the upper computer 1700, and the upper computer 1700 displays that the secondary protection function is normal.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection device further includes a switching value detection module 900, and the switching value detection module 900 is electrically connected to the main control module 100. As shown in fig. 7, in this example, the switching amount detection module 900 includes an ACC detection unit 910, a FIRE detection unit 920, and a KEY detection unit 930. The ACC detecting unit 910, the FIRE detecting unit 920 and the KEY detecting unit 930 are respectively connected to a ACC, KEY, FIER socket of the battery-powered BMS1500 through photocouplers to detect ACC, KEY, FIRE functions of the battery-powered BMS 1500; the main control module 100 sends a high level to drive the photoelectric coupler, the photoelectric coupler is turned on to pull the level of ACC, KEY, FIRE of the battery-changing BMS1500 from high to low, the battery-changing BMS1500 receives the low level and returns to the main control module 100, namely ACC, KEY, FIER of the battery-changing BMS is judged to be normal in function, a test passing result is output to the upper computer 1700, and ACC, KEY, FIRE is displayed on the upper computer 1700 to be normal in function.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection apparatus further includes a power supply module 1000, and the power supply module 1000 is electrically connected with the main control module 100, the charge detection module 200, the heating detection module 300, the discharge detection module 400, and the pre-charge detection module 500, respectively, for providing an operating power to each module.

Specifically, as shown in fig. 8, the interface J1 is connected to a power source capable of adjusting output voltage, the power source outputs a 12V direct current stabilized voltage power source, the 12V power source is converted into a 5V power source through a step-down DC-DC chip U1, and the 5V power source supplies power to the main control module 100, the charging detection module 200, the heating detection module 300, the discharging detection module 400 and the pre-charging detection module 500 through the isolation module. The 5V power supply is converted into 3V3_MCU through a voltage stabilizer U2 to supply power to the main control module 100; the 5V power supply is converted into 5V_CHG through the chip DC1 to supply power for the charge detection module 200 and the heating detection module 300; the 5V power is converted to 5v_dsg through the chip DC2 to power the discharge detection module 400 and the precharge detection module 500. The power supply module 1000 provides working power for each module through the isolation module respectively, and ensures that each module works independently and is not interfered, thereby protecting the safety of the whole system.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection device further includes a communication detection module 1100, and the communication detection module 1100 is electrically connected to the main control module 100. In this example, the communication detection module 1100 includes an RS485 detection unit and a CAN communication detection unit, in fig. 9, three RS485 detection units are shown, in fig. 10, a CAN communication detection unit is shown, the RS485 detection unit CAN detect whether the 485 communication function of the battery replacement BMS1500 is normal, and the CAN communication detection unit CAN detect whether the CAN communication function of the battery replacement BMS1500 is normal. The 5V power of the power supply module 1000 is converted into 5v_iso through the chip DC3 (see fig. 8) to supply power to the communication detection module 1100.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection device further includes a memory function detection module 1200, and the memory function detection module 1200 is electrically connected with the main control module 100. In this example, the storage function detection module 1200 includes FLASH (i.e., U3 in fig. 3), and the main control module 100 reads and writes the FLASH through the SPI, so that the FLASH erases data, and when normal data reading and writing can be performed between the FLASH and the main control module, the FLASH is judged to be normal in function.

As shown in fig. 1, in some embodiments of the present utility model, the battery-change BMS function detection device further includes a control key 1300, and the control key 1300 is electrically connected to the main control module 100. As shown in fig. 3, in this example, the control key 1300 includes a start key (connected through the interface J2) and an end key (connected through the interface J3), and when testing the battery-replacement BMS1500, only the start key is needed to be pressed, and a low level is sent to the main control module 100, so that the main control module 100 sends a test command, each module starts to test the battery-replacement BMS1500, and after the test starts, no more manual operation is needed; after other functions are detected, the power conversion BMS1500 is dormant through the main control module 100, and the dormant current is read through the multimeter connected in series to the power supply B+ end, so that whether the dormant power consumption of the power conversion BMS1500 is normal or not is judged, and the dormant power consumption is displayed through the upper computer 1700. After the test is finished, an end key is pressed. The light emitting diode LED1 shown in fig. 3 is a test status light, indicating that the device is under test; the Light Emitting Diode (LED) 2 is a power lamp and indicates the on-off state of the device; u4 is a clock chip.

According to the battery replacement BMS function detection device provided by the embodiment of the utility model, the battery replacement BMS1500 CAN be functionally detected, and the functions of charging, discharging, heating, pre-charging, secondary protection, charging awakening, discharging awakening, RS485, CAN (controller area network) functions, storage functions, dormancy power consumption and the like of the battery replacement BMS1500 are tested, so that defective products are screened out, the testing efficiency of the battery replacement BMS1500 is improved, and the product qualification rate and the production efficiency are further improved. The power supply between the test board of the battery change BMS function detection device and the battery change BMS1500 is separated, the test board is powered by using 12V alone, and the battery change BMS1500 is powered by using the battery 1600, so that the actual use scene is simulated, and the battery change BMS1500 is better detected.

In the description of the present specification, a description referring to the terms "one embodiment," "further embodiment," "some specific embodiments," or "some examples," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A battery-change BMS function detection device, comprising:

a main control module;

the charging detection module is electrically connected with the main control module;

the heating detection module is electrically connected with the main control module;

the discharge detection module is electrically connected with the main control module;

the pre-charging detection module is electrically connected with the main control module;

the charging wake-up detection module is electrically connected with the main control module;

and the discharge wake-up detection module is electrically connected with the main control module.

2. The battery change BMS function detection device of claim 1, further comprising a secondary protection detection module electrically connected to the master control module.

3. The battery replacement BMS function detection device according to claim 1, further comprising a switching value detection module electrically connected to the main control module.

4. The battery replacement BMS function detection device according to claim 1, further comprising a power supply module electrically connected to the main control module, the charge detection module, the heating detection module, the discharge detection module, and the precharge detection module, respectively.

5. The battery replacement BMS function detection device according to claim 1, further comprising a communication detection module electrically connected to the main control module.

6. The battery change BMS function detection device of claim 1, further comprising a storage function detection module electrically connected to the master control module.

7. The battery replacement BMS function detection device according to claim 1, wherein the charging detection module comprises a first photoelectric coupler, a first end of an input side of the first photoelectric coupler is connected with a first power supply through a first resistor, a second end of the input side of the first photoelectric coupler is connected with a charging MOS tube of the battery replacement BMS through a first diode, a first end of an output side of the first photoelectric coupler is electrically connected with the main control module, a second end of the output side of the first photoelectric coupler is grounded, and a first capacitor is further arranged between the first end and the second end of the output side of the first photoelectric coupler.

8. The battery change BMS function detection device according to claim 1, wherein the charge wakeup detection module comprises:

the base electrode of the first triode is connected with the main control module through a second resistor, and the emitting electrode of the first triode is grounded;

the first end of the electromagnetic coil of the relay is connected with a second power supply, and the second end of the electromagnetic coil of the relay is connected with the collector electrode of the first triode;

and the charger is electrically connected with the input end of the relay, and the output end of the relay is electrically connected with the battery of the battery-changing BMS.

9. The battery change BMS function detection device according to claim 1, wherein the discharge wake-up detection module comprises:

the base electrode of the second triode is connected with the main control module through a third resistor, and the emitting electrode of the second triode is grounded;

the first end of the input side of the second photoelectric coupler is connected with a third power supply through a fourth resistor, the second end of the input side of the second photoelectric coupler is connected with the collector of the second triode, the first end of the output side of the second photoelectric coupler is connected with the positive electrode end of the battery replacement BMS through a fifth resistor and a sixth resistor which are mutually connected in parallel, and the second end of the output side of the second photoelectric coupler is connected with the negative electrode end of the battery replacement BMS.

10. The battery replacement BMS function detection device according to claim 1, further comprising a control key electrically connected to the main control module.