CN218037290U - Power battery BMS test system calibrating device - Google Patents
Power battery BMS test system calibrating device Download PDFInfo
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- CN218037290U CN218037290U CN202221863654.3U CN202221863654U CN218037290U CN 218037290 U CN218037290 U CN 218037290U CN 202221863654 U CN202221863654 U CN 202221863654U CN 218037290 U CN218037290 U CN 218037290U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a power battery BMS test system calibrating device of power battery BMS test system calibrating device technical field, this power battery BMS test system calibrating device includes: the system comprises channel switching equipment, digital multimeter equipment and a computer; the channel switching equipment comprises a plurality of input channels and is used for electrically inputting and connecting single output and total output of a modular simulation battery monomer in the BMS test system, the channel switching equipment is electrically output and connected with the digital multimeter equipment, the digital multimeter equipment is electrically connected with the computer in a two-way mode, and the computer is electrically output and connected with the channel switching equipment. The utility model discloses use the passageway switching equipment to realize the automatic switch-on switching between modularization simulation battery monomer total output channel, the free single output channel of a plurality of modularization simulation batteries and a digital multimeter input channel, practiced thrift the time of manual switching wiring, saved the equipment input.
Description
Technical Field
The utility model relates to a power battery BMS test system calibrating device technical field specifically is a power battery BMS test system calibrating device.
Background
The Battery Management System (BMS) refers to a control unit for battery system data acquisition, battery state monitoring, battery protection and charging management of the electric automobile, and has the functions of equalization management, thermal management and the like.
At present, before BMS battery system comes into use, in order to guarantee that BMS battery system reliably operates, after product design shaping, need carry out comprehensive test through BMS test system, BMS test system need use a plurality of modularization simulation battery monomer when testing BMS, but voltage and the electric current of the free output of a plurality of modularization simulation battery have the difference, consequently need calibrate BMS test system through calibrating device.
The single output cable of modularization simulation battery is connected rather than generally adopting artifical manual with current BMS test system calibrating device, then artifical reading test result and manual record, when the test, need use a plurality of modularization simulation battery monomer, this kind of mode low efficiency of software testing, artifical intensity of labour is higher with regard to the wiring that frequently manually switches of manual work of needs. Therefore, a calibration device for a BMS testing system of a power battery is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a power battery BMS test system calibrating device to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a power battery BMS test system calibrating device which characterized in that, this power battery BMS test system calibrating device includes: the system comprises channel switching equipment, digital multimeter equipment and a computer; wherein the content of the first and second substances,
the utility model discloses a BMS test system, including channel switching equipment, digital multimeter equipment, computer electrical output connection channel switching equipment, the channel switching equipment includes a plurality of input channel for single output and the total output of modularization simulation battery monomer in the channel switching equipment electrical input connection BMS test system, channel switching equipment electrical output connects digital multimeter equipment, digital multimeter equipment is used for measuring voltage and the electric current of single output and the total output of modularization simulation battery monomer, the two-way electrical connection computer of digital multimeter equipment, computer electrical output connection channel switching equipment, the computer is used for controlling the automatic switch-over of each input channel in the channel switching equipment and is used for obtaining measuring result with digital multimeter equipment data communication.
The improved digital multimeter is characterized by further comprising a current sensor, wherein the electrical output of the current sensor is connected with the digital multimeter equipment.
In a further improvement, the channel switching device further comprises a switch corresponding to the input channel and a single output channel, and each input channel and the single output channel are respectively composed of a positive terminal and a negative terminal.
The improved structure of the channel switching equipment is characterized in that the channel switching equipment further comprises a shell, two opposite side surfaces of the shell are respectively inserted with a communicated mounting cylinder in a penetrating mode, and a cooling fan is arranged in the mounting cylinder.
The improved structure is characterized in that one end of the mounting cylinder, which is far away from the shell, is detachably provided with a communicated sleeve, and a filter plate and a waterproof breathable film layer are arranged in the sleeve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model uses the channel switching equipment to realize the automatic conduction switching between the total output channel of the modularized simulation battery monomer, the single output channel of a plurality of modularized simulation battery monomers and the input channel of a digital multimeter, thereby saving the time of manual switching wiring and saving the equipment investment;
2. the utility model uses the computer program to control the channel switching device, and can automatically switch and test the single output of each modularized simulation battery monomer according to a certain sequence as required, thereby realizing flexible test;
3. the utility model discloses use the measuring result of computer program automatic acquisition digital multimeter equipment, can use different test result calculation methods as required, include but not limited to: single measurement, multiple measurements to take an average value, multiple measurements to take a median value, and multiple measurements to take a latest value;
4. the utility model discloses a be equipped with radiator fan among the channel switching equipment, to its heat dissipation, guarantee its stable use when the channel switching equipment uses, be equipped with waterproof ventilative rete and filter simultaneously, the effectual entering channel switching equipment such as avoiding liquid and dust causes the damage to channel switching equipment.
Drawings
FIG. 1 is a schematic view of embodiment 1 of the present invention;
fig. 2 is a schematic view of embodiment 2 of the present invention;
fig. 3 is a schematic view of embodiment 3 of the present invention;
fig. 4 is a circuit diagram of a channel switching device in the calibration device of the power battery BMS testing system of the present invention;
FIG. 5 is a perspective view of the channel switching device of the present invention;
fig. 6 is a sectional perspective view of the installation tube structure shown in fig. 5 according to the present invention.
In the figure: 1. a channel switching device; 11. a housing; 12. mounting the cylinder; 13. a sleeve; 14. a heat radiation fan; 15. a filter plate; 16. a waterproof breathable film layer; 2. a digital multimeter device; 3. a computer; 4. and a current sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and 4, a calibration apparatus for a BMS testing system of a power battery includes: the system comprises a channel switching device 1, a digital multimeter device 2 and a computer 3; wherein, the first and the second end of the pipe are connected with each other,
referring to fig. 4, the channel switching device 1 includes a plurality of input channels, and is configured to enable the channel switching device 1 to electrically input and connect to a single output and a total output of a modular analog battery cell in the BMS testing system, the channel switching device 1 is electrically connected to the digital multimeter device 2, the digital multimeter device 2 is configured to measure a voltage and a current of the single output and the total output of the modular analog battery cell, when the system is used, the total output of the modular analog battery cell and the single output of each modular analog battery cell are correspondingly connected to each input channel of the channel switching device 1, the digital multimeter device 2 is electrically connected to the computer 3 in a bidirectional manner, the computer 3 is electrically connected to the channel switching device 1, the computer 3 is configured to control automatic switching of each input channel in the channel switching device 1, so that the total output of the modular analog battery cell and the single output of each modular analog battery cell are sequentially and respectively connected to the measurement input of the digital multimeter device 2, and the computer 3 is further configured to obtain a measurement result through data communication with the digital multimeter device 2, thereby achieving automatic testing of the total output parameters of the modular analog battery cell and the single output parameters of the modular analog battery cell;
the channel switching device 1 further comprises a switch corresponding to the input channel and a single output channel, wherein each input channel and each single output channel are respectively composed of a positive terminal and a negative terminal;
referring to fig. 5-6, the channel switching device 1 further includes a housing 11 for protecting electrical components in the channel switching device 1, in order to prevent heat generated by the electrical components from accumulating in the housing 11 when the channel switching device 1 is in use and affecting stable use of the channel switching device 1, preferably, in this embodiment, two opposite sides of the housing 11 are respectively inserted with a mounting tube 12, a heat dissipation fan 14 is disposed in the mounting tube 12, the two heat dissipation fans 14 are different, for example, one set of heat dissipation fan 14 is a heat dissipation fan, the other set of heat dissipation fan 14 is a heat dissipation fan, so that external air enters the housing 11 quickly and heat in the housing 11 is exhausted quickly, a sleeve 13 is detachably disposed at one end of the mounting tube 12 away from the housing 11, a filter plate 15 and a waterproof air-permeable film layer 16 are disposed in the sleeve 13, and the filter plate 15 and the waterproof air-permeable film layer 16 prevent external dust and liquid from entering the housing 11;
the operating principle of the channel switching device 1 is as follows:
when in use: connecting the positive electrode and the negative electrode of the single output of the modular simulation battery monomer I to the positive electrode and the negative electrode of the input channel I of the channel switching equipment 1 correspondingly, connecting the positive electrode and the negative electrode of the single output of the modular simulation battery monomer II to the positive electrode and the negative electrode of the input channel II of the channel switching equipment 1 correspondingly, and connecting the single outputs of all the N modular simulation battery monomers to the corresponding channels of the channel switching equipment 1 by analogy; connecting the anode and the cathode of an output channel of the channel switching equipment 1 to the anode and the cathode of the digital multimeter equipment 2; after the test is started, the channel switching equipment 1 is controlled by a computer 3 program, so that the channel switching equipment 1 is respectively closed by the switches S-1 and S-2 … … S-N of the channel switching equipment 1, and the channel switching equipment is used for sequentially communicating a first modularized simulation battery monomer and a second modularized simulation battery monomer to the input ends of a first modularized simulation battery monomer N and a digital multimeter equipment 2, so that single output signals of all modularized simulation battery monomers are sequentially tested;
referring to fig. 1 and 4, this method is used when the total output voltage and current of the modular analog battery cells and the single output voltage and current of each modular analog battery cell do not exceed the carrying ranges of the channel switching device 1 and the digital multimeter device 2;
(1) When in use, the total output channel of the modular simulation battery monomer and the single output channel of each modular simulation battery monomer are sequentially connected to each input channel of the channel switching equipment 1;
(2) The output of the channel switching equipment 1 is connected to a corresponding measuring input end on the digital multimeter equipment 2, the voltage testing input end is connected to the channel switching equipment when the output voltage is tested, and the current testing input end is connected to the channel switching equipment when the output current is tested;
(3) Connecting communication ports of the channel switching equipment 1 and the digital multimeter equipment 2 with a computer 3;
during testing, the computer 3 runs a test program to control the channel switching device 1 to sequentially switch the input channels communicated with the output channels, for example, firstly, the input channel I is switched to be communicated with the output channels, and then, the test result of the digital multimeter device 2 is automatically read and recorded; then disconnecting the input channel from the output channel, switching the input channel II to be connected with the output channel, automatically reading and recording the test result … … of the digital multimeter device 2, and repeating the steps until all the input channels are switched to be connected and the test is finished;
(4) The accuracy of the total output of the single modularized simulation battery and the accuracy of the single output of the single modularized simulation battery are determined by calculating the difference between the actual test value and the set value output by the single modularized simulation battery, for example, the single output voltage of the existing single modularized simulation battery is 5V, and the system can be used for calibrating the precision of the voltage of 5V.
Example 2
Referring to fig. 2, a calibration apparatus for a BMS testing system of a power battery includes: the device comprises a channel switching device 1, a digital multimeter device 2, a computer 3 and a current sensor 4; wherein, the first and the second end of the pipe are connected with each other,
referring to fig. 4, the channel switching device 1 includes a plurality of input channels, and is configured to electrically input and connect individual outputs and total outputs of the modular analog battery cells in the BMS testing system through the channel switching device 1, the channel switching device 1 is electrically connected to the digital multimeter device 2, the digital multimeter device 2 is configured to measure voltages and currents of the individual outputs and the total outputs of the modular analog battery cells, when the system is used, the total outputs of the modular analog battery cells and the individual outputs of the modular analog battery cells are correspondingly connected to the input channels of the channel switching device 1, the digital multimeter device 2 is electrically connected to the computer 3 in a bidirectional manner, the computer 3 is electrically connected to the channel switching device 1, the computer 3 is configured to control automatic switching of the input channels in the channel switching device 1, so that the total outputs of the modular analog battery cells and the individual outputs of the modular analog battery cells are sequentially and respectively connected to the measurement inputs of the digital multimeter device 2, the computer 3 is further configured to communicate with the digital multimeter device 2 to obtain measurement results, thereby realizing automatic testing of the total output parameters of the modular analog battery cells and the output parameters of the modular analog battery cells, and the current sensor 4 is electrically connected to the digital multimeter device 2;
referring to fig. 2 and 4, when the total output voltage of the modular analog battery cells and the individual output voltage and current of each modular analog battery cell do not exceed the bearing ranges of the channel switching device 1 and the digital multimeter device 2, but the total output current of the modular analog battery cells exceeds the bearing ranges of the channel switching device 1 and the digital multimeter device 2, the method is used;
at this time, when the total output voltage of the modular simulation battery cells and the single output voltage and current of each modular simulation battery cell are tested, the test result is the same as that in embodiment 1;
(1) When testing the total output current of the modular analog battery cell, disconnecting the connection between the channel switching device 1 and the digital multimeter device 2, connecting the output of the current sensor 4 to the input of the digital multimeter device 2, if the output signal of the current sensor 4 is a voltage signal, connecting to a voltage test input, if the output signal of the current sensor 4 is a current signal, connecting to a current test input;
(2) Then, connecting a total output circuit of the modular simulation battery monomer to an input end of a current sensor 4, starting a test program in a computer 3, automatically reading a test value of the digital multimeter device 2, and automatically converting the test value into a corresponding total output current value of the modular simulation battery monomer;
(3) The accuracy of the total output of the modularized simulation battery monomer and the accuracy of the single output of the modularized simulation battery monomer are judged by calculating the difference between the actual test value and the set value output by the modularized simulation battery monomer.
Example 3
Referring to fig. 3, a calibration device for a power battery BMS testing system includes a digital multimeter device 2 and a computer 3, wherein the digital multimeter device 2 is electrically connected to the computer 3 in a bidirectional manner;
referring to fig. 3 and 4, when the single output voltage and current of each modular analog battery cell do not exceed the bearing ranges of the channel switching device 1 and the digital multimeter device 2, and the total output voltage and current of the modular analog battery cell do not exceed the bearing range of the digital multimeter device 2 but exceed the bearing range of the channel switching device 1, the total output voltage and current of the modular analog battery cell are tested in this way;
at this time, when the single output voltage and current of each modular analog battery cell are tested, the test result is the same as that of the embodiment 1;
(1) When testing the total output voltage of the modularized simulation battery monomer, connecting the total output of the modularized simulation battery monomer to the voltage test input end of the digital multimeter device 2, starting the battery output, then starting a test program in the computer 3, and automatically reading and storing the test value of the digital multimeter device 2;
(2) When testing the total output current of the modular analog battery monomer, connecting the total output of the modular analog battery monomer to the current test input end of the digital multimeter device 2, starting the output of the modular analog battery monomer, then starting a test program in the computer 3, and automatically reading and storing the test value of the digital multimeter device 2;
(3) The accuracy of the total output of the modularized simulation battery monomer and the accuracy of the single output of the modularized simulation battery monomer are judged by calculating the difference between the actual test value and the set value output by the modularized simulation battery monomer.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a power battery BMS test system calibrating device which characterized in that, this power battery BMS test system calibrating device includes: the system comprises a channel switching device (1), a digital multimeter device (2) and a computer (3); wherein the content of the first and second substances,
channel switching equipment (1) includes a plurality of input channel for single output and the total output of modularization simulation battery monomer in channel switching equipment (1) electrical property input connection BMS test system, channel switching equipment (1) electrical property output connection digital multimeter equipment (2), digital multimeter equipment (2) are used for measuring voltage and the electric current of single output and the total output of modularization simulation battery monomer, two-way electrical connection computer (3) of digital multimeter equipment (2), computer (3) electrical property output connection channel switching equipment (1), computer (3) are used for controlling the automatic switch-over of each input channel in channel switching equipment (1) and are used for obtaining measuring result with digital multimeter equipment (2) data communication.
2. The calibration device for the BMS testing system of the power battery as claimed in claim 1, wherein: still include current sensor (4), current sensor (4) electrical output connects digital multimeter equipment (2).
3. The calibration device for the BMS testing system of the power battery as claimed in claim 1, wherein: the channel switching device (1) further comprises a selector switch corresponding to the input channel and a single output channel, and each input channel and each single output channel are composed of a positive terminal and a negative terminal.
4. The calibration device for the BMS testing system of the power battery as claimed in claim 1, wherein: the channel switching equipment (1) further comprises a shell (11), two opposite side faces of the shell (11) are inserted with installation cylinders (12) communicated with each other in a penetrating mode, and cooling fans (14) are arranged in the installation cylinders (12).
5. The calibration device for the BMS testing system of the power battery as claimed in claim 4, wherein: one end of the mounting cylinder (12) far away from the shell (11) is detachably provided with a communicated sleeve (13), and a filter plate (15) and a waterproof breathable film layer (16) are arranged in the sleeve (13).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221863654.3U CN218037290U (en) | 2022-07-20 | 2022-07-20 | Power battery BMS test system calibrating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221863654.3U CN218037290U (en) | 2022-07-20 | 2022-07-20 | Power battery BMS test system calibrating device |
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| CN218037290U true CN218037290U (en) | 2022-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116125357A (en) * | 2023-04-04 | 2023-05-16 | 湖北蓝博新能源设备股份有限公司 | Battery testing method and calibration device and method of battery testing equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116125357A (en) * | 2023-04-04 | 2023-05-16 | 湖北蓝博新能源设备股份有限公司 | Battery testing method and calibration device and method of battery testing equipment |
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