CN219225033U

CN219225033U - Battery management system detects frock

Info

Publication number: CN219225033U
Application number: CN202223536819.9U
Authority: CN
Inventors: 伍胜斌
Original assignee: Xiaogan Chuneng New Energy Innovation Technology Co ltd
Current assignee: Xiaogan Chuneng New Energy Innovation Technology Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-20
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a battery management system detection tool which comprises a switch power supply and a plurality of resistors, wherein the number of the resistors is the same as that of battery units managed by a battery manager to be detected, the resistors are sequentially connected in series and are connected between positive and negative power supply ports of the switch power supply, and a node outgoing line is electrically connected with a current input end of each resistor and a negative electrode end of the switch power supply. By utilizing the principle of series voltage division of resistors: in the series circuit, the current on each resistor is the same, the sum of the voltages at the two ends of each resistor is equal to the total voltage on the circuit, the voltage on the two ends of the loading resistor is equal to the voltage of one battery, the simulation of the battery module is realized, the test of the voltage monitoring function of the battery management system without actual test pieces is further realized, the test cost and the test piece placement space are saved, and the test efficiency can be improved.

Description

Battery management system detects frock

Technical Field

The utility model relates to the technical field of battery management, in particular to a battery management system detection tool.

Background

With the rapid development of the domestic energy storage market, the number of battery boxes in a container is continuously increased, and the demand of a Battery Management System (BMS) is also continuously increased. In order to ensure that the BMS has no problem in practical application, a large number of experimental tests are required to be carried out on the BMS, and the main functions of the battery management system comprise monitoring of the voltage of the single battery cell, so that whether the voltage value of the single battery cell can be accurately displayed is an important item for checking the battery management system. The experimental testing device of the existing battery management system is mainly carried out on actual battery module test pieces, the battery modules belong to dangerous goods, more manpower and material resource costs are required for circulation from clients to laboratories, and the experimental pieces of different types are numerous and require a large experimental placement space for storage. In addition, in the design verification stage, sometimes the battery module is designed but not produced yet, and then test verification cannot be performed, so that development efficiency is affected.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a battery management system detection tool which can simulate the voltage performance of a battery module in working, realize the test without an actual test piece, save the test cost and the test piece placement space and improve the test efficiency.

In order to solve the technical problems, the battery management system detection tool comprises a switch power supply and a plurality of resistors, wherein the number of the resistors is the same as that of battery units managed by a battery manager to be detected, the resistors are sequentially connected in series and are connected between positive and negative power supply ports of the switch power supply, and a node outgoing line is electrically connected between a current input end of each resistor and a negative end of the switch power supply.

In the above-mentioned battery management system detects frock, through utilizing the principle of resistance series connection bleeder pressure: in the series circuit, the current on each resistor is the same, the sum of the voltages on the two ends of each resistor is equal to the total voltage on the circuit, the voltage on the two ends of the loaded resistor is equal to the voltage of one battery, the simulation of the battery module is realized, the test without an actual test piece is further realized for the voltage monitoring function of the battery management system, the test cost and the test piece placement space are saved, and the test efficiency is also improved; in addition, the detection tool can simulate various specifications of battery modules by adjusting the number of the resistors, and is high in universality.

Furthermore, the detection tool further comprises a plug connector which can be plugged with the connector of the battery manager, the plug connector is provided with a plurality of pins, and each pin is connected with one end of the outgoing line of the node. The connector is directly connected with the connector in a plugging mode through the plug connector, so that the test efficiency is improved.

Furthermore, the detection tool further comprises a terminal strip, wherein the terminal strip is used for realizing series connection between the resistors, and the node outgoing line is connected into a series circuit of the resistors. The connection wiring of the resistor and the node outgoing line is realized through the terminal strip, the operation is simple and quick, the disassembly is easy, and the connection wiring can be easily expanded and converted into the analog circuit structure of other battery modules.

Further, a plurality of wiring terminals are arranged on the terminal block, the interfaces of the wiring terminals positioned at one side of the terminal block are sequentially connected with the node outgoing lines, and the interfaces of two adjacent wiring terminals positioned at the other side of the terminal block are sequentially connected with the resistor.

Further, two pins are arranged on the resistor, are respectively inserted into the interfaces of two adjacent wiring terminals, and are communicated with the ends of the conductive plates of the corresponding wiring terminals. Through operating binding post, make the connection and the dismantlement of resistance all very convenient, the series connection realization mode of resistance is ingenious moreover.

Further, the node outgoing line is inserted into the interface of the wiring terminal and is communicated with the end part of the conductive sheet of the corresponding wiring terminal.

Further, the positive power supply port of the switching power supply is connected with an output lead, the negative power supply port is connected with a backflow lead, and the output lead and the backflow lead are respectively connected in two wiring terminal interfaces at two ends.

Further, the terminal block further comprises a mounting rail, and the mounting rail is used for fixedly mounting the wiring terminal.

In conclusion, by adopting the battery management system detection tool, the detection of the test piece without the actual battery module can be realized, the test efficiency is improved, and the test space and the cost are saved.

Drawings

In the drawings:

fig. 1 is a schematic structural diagram of a battery management system detection tool according to the present utility model.

Fig. 2 is an overall structure diagram of the battery management system detection tool placement of the present utility model.

Fig. 3 is a block diagram of a terminal strip of the battery management system detection tool according to the present utility model.

Reference numerals illustrate: 1. a switching power supply; 11. an output lead; 12. reflow wire; 2. a resistor; 3. a node outgoing line; 4. a terminal block; 41. a connection terminal; 42. a mounting rail; 5. a plug-in component.

Detailed Description

The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model.

Fig. 1-3 illustrate a battery management system inspection tool of the present utility model. As shown in fig. 1, the battery management system detection tool comprises a switch power supply 1 and a plurality of resistors 2, wherein the number of the resistors 2 is the same as the number of battery units managed by a battery manager to be detected, the resistors 2 are sequentially connected in series and connected between positive and negative power supply ports of the switch power supply 1, and a current input end of each resistor 2 and a negative end of the switch power supply 1 are electrically connected with a node outgoing line 3.

As shown in fig. 2, the detection tool further includes a terminal strip 4, and the terminal strip 4 is used for realizing series connection between the resistors 2, and connecting the node outgoing line 3 into a series circuit of the resistors 2. The connection wiring of the resistor 2 and the node outgoing line 3 is realized through the terminal strip 4, the operation is simple and quick, the disassembly is easy, and the connection wiring can be easily expanded and converted into the analog circuit structure of other battery modules.

Optionally, a plurality of connection terminals 41 are arranged on the terminal strip 4, the interfaces of the connection terminals 41 positioned on one side of the terminal strip 4 are sequentially connected with the node outgoing lines 3, and the interfaces of two adjacent connection terminals 41 positioned on the other side of the terminal strip 4 are sequentially connected with the resistor 2.

As shown in fig. 3, two pins are provided on the resistor 2, respectively inserted into the interfaces of two adjacent connection terminals 41, and connected to the ends of the conductive sheets of the corresponding connection terminals 41. The connecting terminal 41 can adopt a cage spring connecting terminal, so that the connection and the disassembly of the resistor 2 are very convenient, and the series connection implementation mode of the resistor 2 is ingenious.

Alternatively, the node lead-out wire 3 is inserted into the interface of the connection terminal 41 and is connected to the conductive sheet end of the corresponding connection terminal 41. The node outgoing line 3 is connected to the series circuit of the resistor 2 through a conductive sheet of the connecting terminal 41, and is used for leading out voltage for detection by a battery management system.

Optionally, the positive power supply port of the switching power supply 1 is connected with an output lead 11, the negative power supply port is connected with a backflow lead 12, the output lead 11 and the backflow lead 12 are respectively connected in two connecting terminal 41 interfaces at two ends, a loop is formed on the resistor 2 connected in series, and the output voltage and the current of the switching power supply 1 are regulated to proper sizes, so that the components of the loop are not damaged.

Optionally, the terminal block 4 further includes a mounting rail 42, where the mounting rail 42 is used to fixedly mount the connection terminals 41, and the number of the connection terminals 41 is the same as the number of battery module cores to be simulated, so that the terminal block can be freely expanded to simulate multiple specifications of battery modules.

Optionally, the detection tool further comprises a plug connector 5 capable of being plugged into a connector of the battery manager, the plug connector 5 is provided with a plurality of pins, and each pin is connected with one end of one node outgoing line 3. The connector is directly connected with the connector in a plugging mode through the plug connector 5, so that the test efficiency is improved.

When the battery module is used, the number of the resistor 2, the node outgoing line 3 and the connecting terminal 41 required by simulation is obtained according to the specification and model of the battery module to be tested; the terminals 41 are then fixed side by side on the mounting rail 42; then sequentially inserting two pins of the resistor 2 on interfaces of two adjacent wiring terminals 41 to realize series connection of the resistor 2; then sequentially connecting the node outgoing lines 3 to the other interface of the connecting terminal 41; finally, the output lead 11 and the reflux lead 12 are also connected to the interface of the connecting terminal 41, so that the switching power supply 1 is loaded on the series resistor 2, the simulation of a battery module is completed, and the detection can be started by plugging the plug connector 5 with the connector of the battery manager. When other battery modules need to be detected, expansion and adjustment can be performed on the existing connecting loop, so that the efficiency is improved.

Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical aspects of the present utility model and not for limiting the scope thereof, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes, modifications or equivalents may be made to the specific embodiments of the present utility model after reading the present utility model, and these changes, modifications or equivalents are within the scope of the utility model as defined in the appended claims.

Claims

1. The utility model provides a battery management system detects frock, its characterized in that includes switching power supply (1) and a plurality of resistance (2), the quantity of resistance (2) is the same with the battery unit quantity that the battery manager who waits to detect managed, resistance (2) establish ties in proper order, and inserts between the positive and negative power supply port of switching power supply (1), each the current input of resistance (2) with the negative terminal of switching power supply (1) all is provided with node lead-out wire (3).

2. The battery management system detection tool according to claim 1, further comprising a plug (5) capable of plugging with a connector of the battery manager, wherein the plug (5) has a plurality of pins, and each pin is connected with one of the node outgoing lines (3) end.

3. The battery management system detection tool according to claim 1, further comprising a terminal block (4), wherein the terminal block (4) is used for realizing series connection between the resistors (2), and the node outgoing line (3) is connected into a series circuit of the resistors (2).

4. A battery management system detection tool according to claim 3, wherein a plurality of connection terminals (41) are arranged on the terminal block (4), the interfaces of the connection terminals (41) located at one side of the terminal block (4) are sequentially connected with the node outgoing lines (3), and the interfaces of two adjacent connection terminals (41) located at the other side of the terminal block (4) are sequentially connected with the resistor (2).

5. The battery management system detection tool according to claim 4, wherein two pins are arranged on the resistor (2), are respectively inserted into interfaces of two adjacent wiring terminals (41), and are communicated with the ends of the conductive plates of the corresponding wiring terminals (41).

6. The battery management system detection tool according to claim 5, wherein the node outgoing line (3) is inserted into an interface of the connection terminal (41) and is connected with an end of a conductive sheet of the corresponding connection terminal (41).

7. The battery management system detection tool according to claim 4, wherein an output lead (11) is connected to a positive power supply port of the switching power supply (1), and a return lead (12) is connected to a negative power supply port, and the output lead (11) and the return lead (12) are respectively connected to two connection terminal (41) interfaces at two ends.

8. The battery management system detection tool according to claim 4, wherein the terminal block (4) further comprises a mounting rail (42), and the mounting rail (42) is used for fixedly mounting the connection terminal (41).