CN213210335U - Data acquisition device and battery management system - Google Patents
Data acquisition device and battery management system Download PDFInfo
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- CN213210335U CN213210335U CN202021511934.9U CN202021511934U CN213210335U CN 213210335 U CN213210335 U CN 213210335U CN 202021511934 U CN202021511934 U CN 202021511934U CN 213210335 U CN213210335 U CN 213210335U
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Abstract
The application discloses a data acquisition device and a battery management system, wherein the data acquisition device comprises an integrated circuit board and a current acquisition part; the current collecting piece is fixed on the integrated circuit board; the integrated circuit board is provided with an acquisition chip, an insulation processing module, a battery pack total voltage processing module, a current processing module, a fuse state diagnosis module, a positive contactor processing module, a negative contactor processing module and a bus total voltage processing module. This application will detect the function integration such as power battery's voltage, electric current, insulating nature and fuse state on an integrated circuit board, also this application confirms the security of battery package through a module only, and required module quantity reduces by a wide margin, and cost reduction, and can guarantee a plurality of voltage parameter synchronous acquisition.
Description
Technical Field
The application relates to the technical field of batteries, in particular to a data acquisition device and a battery management system.
Background
With the development of new energy automobiles, more and more users select new energy automobiles as transportation tools. The power core of the new energy automobile is the power battery, and with the increase of the attention of the new energy automobile, the safety of the power battery is also concerned. The high-voltage state detection is the basis for ensuring the safety of the power battery, and at present, corresponding modules are arranged for detecting the voltage, the current, the insulativity, the fuse and the like of the power battery in order to ensure the safety of the power battery. Specifically, a current is detected through a current sensor; detecting an insulation passing leakage sensor; and detecting the voltage, the voltage and the fuse, and adopting a special battery data acquisition unit.
Therefore, each detection data of the power battery is provided by an independent detection module, and the detection module comprises the current sensor, the leakage sensor and the battery data collector. The detection modules required by the mode are more, the cost is too high, and the synchronization of the detection data of each module is difficult to ensure.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a data acquisition device and a battery management system, which adopt a module to detect required data, reduce the cost and ensure the synchronism of the detected data.
A first aspect of the present application provides a data acquisition apparatus comprising: the device comprises an integrated circuit board and a current collecting piece; the current collecting piece is fixed on the integrated circuit board; the integrated circuit board is provided with an acquisition chip, an insulation processing module, a battery pack total voltage processing module, a current processing module, a fuse state diagnosis module, a positive contactor processing module, a negative contactor processing module and a bus total voltage processing module; the first end of the battery pack total voltage processing module, the first end of the current processing module, the first end of the fuse state diagnosis module, the first end of the positive contactor processing module, the first end of the negative contactor processing module and the first end of the bus total voltage processing module are respectively connected with the acquisition chip; the second end of the battery pack total voltage processing module is connected with the second end of the insulation processing module; the second end of the current processing module is connected with the current collecting part; and the second end of the positive contactor processing module and the second end of the negative contactor processing module are respectively connected with the first end of the bus total voltage processing module.
Wherein, gather the reference ground of chip and be the battery package negative pole, it is used for: collecting the voltage of the negative electrode of the battery pack to a low-voltage ground through the insulation processing module; collecting the total voltage of the battery pack through the total voltage processing module of the battery pack; collecting the current flowing through the power bus of the battery pack through the current processing module and the current collecting piece; collecting the rear end voltage of the fuse through the fuse state diagnosis module; acquiring positive electrode voltage of the positive contactor through the positive contactor processing module and the bus total voltage processing module; and collecting the voltage at two ends of the negative contactor through the negative contactor processing module.
The data acquisition device as described above, wherein the integrated circuit board further has a communication module; the communication module is connected with the acquisition chip; the acquisition chip is communicated through the communication module.
The data acquisition device as described above, wherein the integrated circuit board further has a power module; the power module is connected with the acquisition chip; the power module is used for supplying power for the integrated circuit board.
The data acquisition device as described above, wherein the data acquisition device further comprises a first plug connector; the first plug connector is provided with a first port, a third port, a fourth port and a fifth port; the current collecting piece is provided with a second port; the third end of the battery pack total voltage processing module is connected with the first port, the second end of the current processing module is connected with the second port, the second end of the fuse state diagnosis module is connected with the third port, and the second end of the bus total voltage processing module is respectively connected with the fourth port and the fifth port.
The data acquisition device as described above, wherein the data acquisition device further comprises a second plug; the second plug connector is provided with a sixth port, a seventh port and an eighth port; the second end of the communication module is connected with the sixth port; and the second end of the power supply module is respectively connected with the seventh port and the eighth port.
The data acquisition device comprises an integrated circuit board, a first side edge, a second side edge, a third side edge and a fourth side edge, wherein the integrated circuit board is provided with a top wall and a bottom wall which are oppositely arranged, and the first side edge, the second side edge, the third side edge and the fourth side edge are sequentially connected end to end; the first plug connector and the second plug connector are arranged on the top wall, the first plug connector is close to the first side edge, and the second plug connector is close to the second side edge; one side of the current collecting piece is fixedly connected with the fourth side edge, and the other side of the current collecting piece extends in the direction away from the fourth side edge.
The data acquisition device as described above, further comprising: an upper case and a lower case; the upper shell is covered on the lower shell, and an accommodating space is formed between the upper shell and the lower shell; the integrated circuit board is mounted in the accommodating space.
The data acquisition device is characterized in that the upper shell is provided with a clamping hole, and the lower shell is provided with a clamping buckle; and after the upper shell is covered on the lower shell, the clamping buckle is clamped in the clamping hole.
The data acquisition device as described above, wherein the integrated circuit board is provided with a positioning hole, and the lower shell is provided with a positioning column; when the integrated circuit board is installed in the accommodating space, the positioning column is inserted into the positioning hole.
A second aspect of the present application provides a battery management system, comprising a battery management controller and the data acquisition device of any one of the first aspects of the present application; and the battery management controller is in communication connection with the data acquisition device.
The application provides a data acquisition device includes: the device comprises an integrated circuit board and a current collecting piece; the current collecting piece is fixed on the integrated circuit board; the integrated circuit board is provided with an acquisition chip, an insulation processing module, a battery pack total voltage processing module, a current processing module, a fuse state diagnosis module, a positive contactor processing module, a negative contactor processing module and a bus total voltage processing module; the first end of the battery pack total voltage processing module, the first end of the current processing module, the first end of the fuse state diagnosis module, the first end of the positive contactor processing module, the first end of the negative contactor processing module and the first end of the bus total voltage processing module are respectively connected with the acquisition chip; the second end of the battery pack total voltage processing module is connected with the second end of the insulation processing module; the second end of the current processing module is connected with the current collecting part; and the second end of the positive contactor processing module and the second end of the negative contactor processing module are respectively connected with the first end of the bus total voltage processing module.
Wherein, gather the reference ground of chip and be the battery package negative pole, it is used for: collecting the voltage of the negative electrode of the battery pack to a low-voltage ground through the insulation processing module; collecting the total voltage of the battery pack through the total voltage processing module of the battery pack; collecting the current flowing through the power bus of the battery pack through the current processing module and the current collecting piece; collecting the rear end voltage of the fuse through the fuse state diagnosis module; acquiring positive electrode voltage of the positive contactor through the positive contactor processing module and the bus total voltage processing module; and collecting the voltage at two ends of the negative contactor through the negative contactor processing module.
It is thus clear that the data acquisition device that this application provided, the function integration that will detect power battery's voltage, electric current, insulating nature and fuse state etc. is on an integrated circuit board, also this application confirms the security of battery package through a module, and required module quantity reduces by a wide margin, and cost reduction, and can guarantee a plurality of voltage parameter synchronous acquisition.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings used in the embodiments will be briefly described below.
Fig. 1 is a block diagram of a charging module according to an embodiment of the present disclosure;
fig. 2 is a block diagram of a charging module according to an embodiment of the present disclosure;
FIG. 3 is an isometric view of an integrated circuit board provided by an embodiment of the present application;
FIG. 4 is a top view of an integrated circuit board provided by an embodiment of the present application;
FIG. 5 is a left side view of an integrated circuit board provided by an embodiment of the present application;
FIG. 6 is a rear view of an integrated circuit board provided by an embodiment of the present application;
fig. 7 is an isometric view of an upper housing, a lower housing and an integrated circuit board provided by an embodiment of the present application;
FIG. 8 is a schematic diagram of an integrated circuit board and power system connection provided by an embodiment of the present application;
fig. 9 is a schematic structural diagram of a battery management system according to an embodiment of the present application.
Description of reference numerals:
10-data acquisition device, 100-integrated circuit board, 110-positioning hole, 120-top wall, 121-first side edge, 122-second side edge, 123-third side edge, 124-fourth side edge, 1-first plug connector, 11-first port, 12-third port, 13-fourth port, 14-fifth port, 2-current acquisition part, 21-second port, 3-acquisition chip, 4-upper shell, 41-clamping hole, 5-lower shell, 51-clamping buckle, 52-positioning column, 6-second plug connector, 61-sixth port, 62-seventh port, 63-eighth port, 7-communication module, 71-power module, 72-insulation processing module, 73-battery pack total voltage processing module, 74-current processing module, 75-fuse state diagnosis module, 76-positive contactor processing module, 77-negative contactor processing module, 78-bus total voltage processing module; 200-battery pack, 210-fuse, 220-positive contactor, 230-negative contactor, 240-vehicle body; 300-a battery management system, 310-a battery management controller and 400-a vehicle control unit.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.
The data acquisition device 10 provided by the embodiment of the application comprises: an integrated circuit board 100 and a current collection member 2; the current collecting member 2 is fixed to the integrated circuit board 100. Optionally, the current collector 2 is a current divider; the shunt has good stability and low cost.
Referring to fig. 1, the integrated circuit board 100 has a collecting chip 3, an insulation processing module 72, a battery pack total voltage processing module 73, a current processing module 74, a fuse state diagnosis module 75, a positive contactor processing module 76, a negative contactor processing module 77, and a bus total voltage processing module 78.
The first end of the battery pack total voltage processing module 73, the first end of the current processing module 74, the first end of the fuse state diagnosis module 75, the first end of the positive contactor processing module 76, the first end of the negative contactor processing module 77 and the first end of the bus total voltage processing module 78 are respectively connected with the acquisition chip 3; a second end of the battery pack total voltage processing module 73 is connected with a second end of the insulation processing module 72; the second end of the current processing module 74 is connected with the current collecting part 2; a second end of the positive contactor processing module 76 and a second end of the negative contactor processing module 77 are connected to a first end of the bus total voltage processing module 78, respectively.
When the battery pack is used specifically, the reference ground of the acquisition chip 3 is the negative electrode of the battery pack 200, and the acquisition chip 3 is used for: the voltage of the negative pole of the battery pack to the low-voltage ground is collected through the insulation processing module 72, namely the voltage between the low-voltage ground and the negative pole of the battery pack is taken as a reference point, the potential flow direction is from the low-voltage ground to the negative pole of the battery pack, and the voltage between the low-voltage ground and the negative pole of the battery pack is a positive number; collecting the total voltage of the battery pack through the total voltage processing module 73 of the battery pack; the current flowing through the power bus of the battery pack is collected through the current processing module 74 and the current collecting piece 2; the fuse state diagnosis module 75 collects the voltage of the rear end of the fuse, the end of the fuse 210 connected with the positive electrode of the battery pack is the front end, and the end of the fuse 210 connected with the positive contactor 220 is the rear end; collecting positive contactor positive voltage through the positive contactor processing module 76 and the bus total voltage processing module 78; the voltage across the negative contactor is collected by the negative contactor processing module 77. It will be understood that the default voltage collected is the negative pole of the battery pack, for example, the positive pole voltage of the battery pack is the voltage between the positive pole of the battery pack and the negative pole of the battery pack.
Further, referring to fig. 1, since the value of the directly collected voltage value is too large, if the collected value is directly sent to the chip of the integrated circuit board 100, there is a certain risk and the cost is high. Therefore, the insulation processing module 72 is used for reducing the voltage of the negative electrode of the battery pack to the low-voltage ground, and the total voltage processing module 73 is used for reducing the total voltage of the battery pack; the current processing module 74 and the current collecting part 2 are used for reducing the current collecting part 2 flowing through the power bus of the battery pack; the fuse state diagnosis module 75 is used for reducing the voltage of the rear end of the fuse; the positive contactor processing module 76 and the bus total voltage processing module 78 are used for reducing the positive contactor positive voltage; the negative contactor processing module 77 is used to reduce the voltage across the negative contactor.
That is, the value actually acquired by the acquisition chip 3 is a value subjected to reduction processing by each processing module. The values acquired by the acquisition chip 3 are all reduced values, so that the cost for manufacturing the integrated circuit board 100 can be reduced, and the power utilization safety is ensured.
In summary, the charging module provided in the embodiment of the present application realizes that a plurality of voltage parameters of the battery pack 200 are measured by only one integrated circuit board 100 module: the negative electrode of the battery pack collects the voltage of a low-voltage ground, the total voltage of the battery pack, the current flowing through a power bus of the battery pack, the voltage of the rear end of a fuse, the voltage of the positive electrode of a positive contactor and the voltage of the two ends of a negative contactor. After the six values are collected, whether each parameter of the battery pack 200 is normal or not can be judged through the six values, so that whether the battery pack 200 is safe or not is determined. The safety of the battery pack 200 is confirmed only by one module, the number of required modules is greatly reduced, the cost is reduced, and a plurality of voltage parameters can be synchronously acquired.
Specifically, the six collected values are sent to the battery management controller through the collection chip 3 of the integrated circuit board 100, and the battery management controller processes and calculates the six received values, determines the current state of the battery pack, and sends the state of the battery pack to the vehicle control unit. In more detail, the acquisition chip 3 sends the acquired six values to the battery management controller, and then the battery management controller sends the battery pack state to the vehicle control unit after processing and calculation. If the battery pack is abnormal, the battery management controller sends an alarm to the vehicle control unit 400, and then the vehicle control unit takes measures again.
The battery management controller can judge the insulation performance of the battery pack according to the voltage of the negative electrode of the battery pack to a low-voltage ground, the total voltage of the battery pack, the current flowing on a power bus of the battery pack, the voltage of the rear end of a fuse, the voltage of the positive electrode of a positive contactor and the voltage of the two ends of a negative contactor, which are acquired by the acquisition chip 3; judging whether the voltage is normal or not; judging whether the current is normal; judging whether the fuse 210 is blown or not; determining whether the positive contactor 220 is in an open, closed, or sintered state; determining whether the negative contactor 230 is in an open, closed, or sintered state; it is determined whether the voltage supplied to the load is normal.
Optionally, referring to fig. 2, the integrated circuit board 100 further has a communication module 7; the communication module 7 is connected with the acquisition chip 3; the acquisition chip 3 communicates through the communication module 7. As already mentioned above, the data collected by the collecting chip 3 needs to be sent to the battery management controller, so the communication module 7 can be used for communication between the collecting chip 3 and the battery management controller.
As can be understood by those skilled in the art, the acquisition chip in the integrated circuit board 100 is connected to other electronic components, and therefore, referring to fig. 2, the integrated circuit board 100 provided in the embodiment of the present application further has a power module 71, where the power module 71 is connected to the acquisition chip 3; the power module 71 is used for supplying power to the integrated circuit board 100.
As can be seen from the above, in the data acquisition device 10 provided in the embodiment of the present application, the integrated circuit board 100 integrates a communication function and a power supply function in addition to the function of detecting various data of the battery pack 200, so that the integration level of the data acquisition device 10 is further improved, more modules are saved, and the cost is further reduced.
Optionally, referring to fig. 3 to 6, the data acquisition device 10 provided in the embodiment of the present application further includes a first plug connector 1. This first plug connector 1 is mainly used to connect each module on the integrated circuit board 100 and the position of the battery pack 200 where data needs to be collected, thereby facilitating data collection, and making the harness more regular, ensuring connection convenience, and improving the efficiency of connecting the harness.
In detail, the first plug connector 1 is provided with a first port 11, a third port 12, a fourth port 13 and a fifth port 14; the current collection member 2 is provided with a second port 21. The third terminal of the battery pack total voltage processing module 73 is connected to the first port 11, the second terminal of the current processing module 74 is connected to the second port 21, the second terminal of the fuse state diagnosis module 75 is connected to the third port 12, and the second terminal of the bus total voltage processing module 78 is connected to the fourth port 13 and the fifth port 14, respectively. Therefore, the integrated circuit board 100 and the battery pack 200 can be quickly connected, the connection efficiency is improved, and the wiring harness is regular. And the wiring harness is more regular, so that the follow-up overhaul and maintenance are facilitated.
Optionally, referring to fig. 3 to 6, the data acquisition device 10 further includes a second plug 6. The second plug 6 is used to provide a port for connecting both the communication module 7 and the power module 71 to the outside. In detail, the second plug 6 is provided with a sixth port 61, a seventh port 62 and an eighth port 63. The second end of the communication module 7 is connected with the sixth port 61; a second end of the power module 71 is connected to the seventh port 62 and the eighth port 63, respectively. That is, through sixth port 61 to eighth port 63, can realize integrated circuit board 100 fast and need communication equipment's being connected to and realize the connection of integrated circuit board 100 and power fast, and second plug connector 6 is independent of first plug connector 1, can further improve the connecting wire rate, promotes the regular degree of pencil, thereby further the promotion of profit overhauls and maintains the convenience.
Referring to fig. 8, the connection relationship between the battery pack 200 and the vehicle body is generally as follows: the positive electrode of the battery pack 200, the fuse 210, the positive contactor 220, the body 240, the negative contactor 230, and the negative electrode of the battery pack 200 are connected in sequence. Thus, the first port 11 is connected with a node between the positive electrode of the battery pack 200 and the fuse 210; the second port 21 is connected to a node between the negative electrode of the battery pack 200 and the negative contactor; the third port 12 is connected to a node between the fuse 210 and the positive contact 220; the fourth port 13 is connected with a node between the positive contactor 220 and the vehicle body; the fifth port 14 is connected to a node between the negative contactor 230 and the vehicle body.
Referring to fig. 3 to fig. 6, the number of the first connectors 1 may be one or two, and the number is set according to the circuit layout on the integrated circuit board 100. Taking two first connectors 1 as an example, please refer to fig. 3, it can be seen that six ports are arranged on one of the first connectors 1, and two ports are arranged on the other first connector 1; a total of six ports, any four of which may serve as the first port 11, the third port 12, the fourth port 13, and the fifth port 14, and two of which may serve as spare ports, may be used when four used ports are damaged.
Further, with continued reference to fig. 3 to fig. 7, the integrated circuit board 100 has a top wall 120 and a bottom wall disposed oppositely, and includes a first side 121, a second side 122, a third side 123 and a fourth side 124 which are connected end to form a square.
The first connector 1 and the second connector 6 are disposed on the top wall 120, the first connector 1 is close to the first side 121, and the second connector 6 is close to the second side 122. One side of the current collecting member is fixedly connected to the fourth side 124, and the other side extends away from the fourth side 124. While the acquisition chip 3 and the processing module are arranged in other empty and positions of the top wall 120. Due to the layout, the structure of the integrated circuit board 100 is compact, the size is small, and occupied space is saved.
The second plug connector 6 and the first plug connector 1 are arranged at different positions of the integrated circuit board 100, the first plug connector 1 is mainly connected with a position where data needs to be collected, and the second plug connector 6 transmits the collected data to the battery management controller. The division of labor is clear, the interference condition can not occur, the wiring mode is facilitated to be simplified, and the structure of the integrated circuit board 100 is more regular.
Further, referring to fig. 2 to fig. 6 in combination with fig. 7, the data acquisition device further includes an upper shell 4 and a lower shell 5. The upper shell 4 is covered on the lower shell 5, and a containing space is formed between the upper shell 4 and the lower shell 5; the integrated circuit board 100 is fixed in the accommodating space. The upper case 4 and the lower case 5 play a role of protecting and fixing the integrated circuit board 100, and prevent the integrated circuit board 100 from interfering or loosening with other components to cause damage.
Optionally, the upper shell 4 is provided with a clamping hole 41, and the lower shell 5 is provided with a clamping buckle 51; after the upper shell 4 is covered on the lower shell 5, the clamping buckle 51 is clamped in the clamping hole 41. The clamping hole 41 is matched with the clamping buckle 51, so that the upper shell 4 and the lower shell 5 can be reliably connected, and the integrated circuit board 100 can be better protected.
Optionally, the integrated circuit board 100 is provided with a positioning hole 110, and the lower shell 5 is provided with a positioning column 52; when the integrated circuit board 100 is installed in the accommodating space, the positioning posts 52 are inserted into the positioning holes 110. The positioning posts 52 are matched with the positioning holes 110 to position and fix the integrated circuit board 100, so that the integrated circuit board 100 can be conveniently and rapidly installed in the accommodating space, and the integrated circuit board 100 is prevented from being damaged due to shaking in the accommodating space.
Finally, it is emphasized that the processing module 70, the communication module 7 and the power module 71 are all composed of capacitors, inductors and resistors disposed on the integrated circuit board 100.
In addition, referring to fig. 9, an embodiment of the present application further provides a battery management system 300, which includes a battery management controller 310 and the data acquisition device 10 according to any embodiment of the present application; the battery management controller 310 is communicatively connected to the data acquisition device 10. The negative electrode of the battery pack acquired by the data acquisition device 10 transmits the voltage of the low-voltage ground, the total voltage of the battery pack, the current flowing through the power bus of the battery pack, the voltage of the rear end of the fuse, the voltage of the positive electrode of the positive contactor and the voltage of the two ends of the negative contactor to the battery management controller 310, and the battery management controller 310 processes and calculates the received six values, judges the current state of the battery pack and sends the state of the battery pack to the vehicle control unit 400. If the battery pack is not in normal state, the battery management controller 310 sends an alarm to the vehicle control unit 400, and then the vehicle control unit 400 takes measures again.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the description of the embodiments is only provided to help understand the method and the core concept of the present application.
Claims (10)
1. A data acquisition device, comprising: the device comprises an integrated circuit board and a current collecting piece; the current collecting piece is fixed on the integrated circuit board;
the integrated circuit board is provided with an acquisition chip, an insulation processing module, a battery pack total voltage processing module, a current processing module, a fuse state diagnosis module, a positive contactor processing module, a negative contactor processing module and a bus total voltage processing module;
the first end of the battery pack total voltage processing module, the first end of the current processing module, the first end of the fuse state diagnosis module, the first end of the positive contactor processing module, the first end of the negative contactor processing module and the first end of the bus total voltage processing module are respectively connected with the acquisition chip; the second end of the battery pack total voltage processing module is connected with the second end of the insulation processing module; the second end of the current processing module is connected with the current collecting part; and the second end of the positive contactor processing module and the second end of the negative contactor processing module are respectively connected with the first end of the bus total voltage processing module.
2. The data acquisition device of claim 1, wherein the integrated circuit board further has a communication module; the communication module is connected with the acquisition chip; the acquisition chip is communicated through the communication module.
3. The data acquisition device of claim 2, wherein the integrated circuit board further has a power module; the power module is connected with the acquisition chip; the power module is used for supplying power for the integrated circuit board.
4. The data acquisition device of claim 3 further comprising a first plug; the first plug connector is provided with a first port, a third port, a fourth port and a fifth port; the current collecting piece is provided with a second port;
the third end of the battery pack total voltage processing module is connected with the first port, the second end of the current processing module is connected with the second port, the second end of the fuse state diagnosis module is connected with the third port, and the second end of the bus total voltage processing module is respectively connected with the fourth port and the fifth port.
5. The data acquisition device of claim 4 further comprising a second plug; the second plug connector is provided with a sixth port, a seventh port and an eighth port;
the second end of the communication module is connected with the sixth port; and the second end of the power supply module is respectively connected with the seventh port and the eighth port.
6. The data acquisition device as claimed in claim 5, wherein the integrated circuit board has a top wall and a bottom wall which are oppositely arranged, and a first side edge, a second side edge, a third side edge and a fourth side edge which are sequentially connected end to end;
the first plug connector and the second plug connector are arranged on the top wall, the first plug connector is close to the first side edge, and the second plug connector is close to the second side edge; one side of the current collecting piece is fixedly connected with the fourth side edge, and the other side of the current collecting piece extends in the direction away from the fourth side edge.
7. The data acquisition device of any one of claims 1 to 6, further comprising: an upper case and a lower case;
the upper shell is covered on the lower shell, and an accommodating space is formed between the upper shell and the lower shell; the integrated circuit board is mounted in the accommodating space.
8. The data acquisition device as claimed in claim 7, wherein the upper shell is provided with a clamping hole, and the lower shell is provided with a clamping buckle;
and after the upper shell is covered on the lower shell, the clamping buckle is clamped in the clamping hole.
9. The data acquisition device as claimed in claim 7, wherein the integrated circuit board is provided with a positioning hole, and the lower shell is provided with a positioning column;
when the integrated circuit board is installed in the accommodating space, the positioning column is inserted into the positioning hole.
10. A battery management system comprising a battery management controller and a data acquisition device as claimed in any one of claims 1 to 9; and the battery management controller is in communication connection with the data acquisition device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511934.9U CN213210335U (en) | 2020-07-27 | 2020-07-27 | Data acquisition device and battery management system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021511934.9U CN213210335U (en) | 2020-07-27 | 2020-07-27 | Data acquisition device and battery management system |
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| Publication Number | Publication Date |
|---|---|
| CN213210335U true CN213210335U (en) | 2021-05-14 |
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| CN202021511934.9U Active CN213210335U (en) | 2020-07-27 | 2020-07-27 | Data acquisition device and battery management system |
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