CN215641727U - Lithium battery protection board testing device - Google Patents
Lithium battery protection board testing device Download PDFInfo
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- CN215641727U CN215641727U CN202121319489.0U CN202121319489U CN215641727U CN 215641727 U CN215641727 U CN 215641727U CN 202121319489 U CN202121319489 U CN 202121319489U CN 215641727 U CN215641727 U CN 215641727U
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- 238000012360 testing method Methods 0.000 title claims abstract description 152
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 40
- 238000007599 discharging Methods 0.000 claims abstract description 17
- 230000005611 electricity Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000004088 simulation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 241000270722 Crocodylidae Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a lithium battery protection board testing device which comprises a tool box body, wherein an operation panel is arranged on the surface of the tool box body, a tool plate, a first voltage output module, a second voltage output module and a charging and discharging testing circuit are arranged in the tool box body, the first voltage output module supplies power to the tool plate, the second voltage output module supplies power to the charging and discharging testing circuit, an analog voltage testing circuit, an analog temperature testing circuit, a DO output testing circuit and an output voltage testing circuit which are connected with a tested lithium battery protection board and used for detecting the tested lithium battery protection board are arranged on the tool plate, and the charging and discharging testing circuit is respectively and electrically connected with the tested lithium battery protection board and a load. The utility model integrates the voltage detection circuit test, the temperature detection circuit test, the DO/DI control signal circuit test, the charge and discharge test and other tests of the single battery, so that the test of the lithium battery protection board is more convenient and quicker, and the test performance is stable.
Description
Technical Field
The utility model relates to the technical field of lithium batteries, in particular to a lithium battery protection board testing device.
Background
With the rapid development of new energy vehicles and the improvement of requirements for safety and stability, battery management systems in power batteries are receiving more and more attention. The Battery Management system monitors and manages the Battery pack effectively in real time, which can prolong the service life of the Battery pack, and the Battery Management Unit (BMU) monitors the real-time voltage state of each Battery module connected in series in the Battery Management system and provides stable and reliable data for the control system is an important component in the Battery Management system.
BMU protection boards of small power lithium battery products need to be produced in batches, and a set of test fixture is needed to be matched with the BMU single boards for testing. However, at present, no test tool capable of integrating the voltage detection circuit test, the temperature detection circuit test, the DO/DI control signal circuit test, the charge and discharge test and the like of the battery cell is available in the market. The existing protection board test can only be carried out by test equipment of partial brands, the test is usually carried out by externally connecting temperature accessories, the test current is limited greatly, the maximum current can only reach 64A, and the large-current test cannot be carried out on the protection board with the rated current of 64-100A. In addition, due to the requirement of a lithium battery protection plate processing technology, a lead and a reserved nut seat are not arranged at a charging and discharging connection position, the connection position cannot be reliably contacted in the previous test, and therefore a large-current test cannot be carried out.
SUMMERY OF THE UTILITY MODEL
The utility model provides a testing device for a lithium battery protection board, which aims to solve the technical problem.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a lithium battery protection board testing arrangement, includes the frock box body, frock box body surface is equipped with operating panel, is equipped with frock board, first voltage output module, second voltage output module and charge-discharge test circuit in the frock box body, first voltage output module gives the frock board power supply, second voltage output module gives charge-discharge test circuit power supply, be equipped with on the frock board and be connected with by the lithium battery protection board of being surveyed and be used for detecting by analog voltage test circuit, analog temperature test circuit, DO output test circuit and the output voltage test circuit of lithium battery protection board, charge-discharge test circuit respectively with by lithium battery protection board, load electricity be connected.
Preferably, the first voltage output module is a 24V output circuit for converting 220V alternating voltage into 24V, and the second voltage output module is a 3.3V output circuit for converting 220V alternating voltage into 3.3V.
Preferably, the surface of the tool box body is provided with a first power switch, a second power switch and a charging and discharging change-over switch, the first power switch is electrically connected with the first voltage output module, the second power switch is electrically connected with the second voltage output module, and the charging and discharging change-over switch is electrically connected with the charging and discharging test circuit.
Preferably, an ammeter and an overvoltage/undervoltage switch are arranged on the operation panel, an analog voltage wiring terminal is arranged on the surface of the tool box body, and the ammeter, the overvoltage/undervoltage switch and the analog voltage wiring terminal are respectively and electrically connected with the analog voltage testing circuit.
Preferably, the ammeter, the overvoltage and undervoltage switch and the analog voltage wiring terminal can be correspondingly arranged in groups to realize multi-channel simultaneous testing, and the number of the groups is less than or equal to 16.
Preferably, the operating panel is provided with a temperature switch, the surface of the tool box body is provided with a simulated temperature wiring terminal, and the temperature switch and the simulated temperature wiring terminal are respectively electrically connected with the simulated temperature testing circuit.
Preferably, the temperature switches and the simulated temperature wiring terminals can be correspondingly arranged in groups to realize multi-channel simultaneous testing, and the number of the groups is less than or equal to 17.
Preferably, a DO output test indicator lamp and an output voltage test indicator lamp are arranged on the operation panel, a DO output test wiring terminal and an output voltage test wiring terminal are arranged on the surface of the tool box body, the DO output test indicator lamp and the DO output test wiring terminal are respectively and electrically connected with the DO output test circuit, and the output voltage test indicator lamp and the output voltage test wiring terminal are respectively and electrically connected with the output voltage test circuit.
Preferably, the surface of the tool box body is provided with a wire hole for the charging and discharging cable to pass through.
Compared with the prior art, the test device integrates the voltage detection circuit test, the temperature detection circuit test, the DO/DI control signal circuit test, the charge and discharge test and the like of the single battery, so that the test of the lithium battery protection board is more convenient and quicker, and the test performance is stable.
Drawings
FIG. 1 is a schematic structural diagram of a lithium battery protection board testing device according to the present invention;
FIG. 2 is a schematic view of an operation panel of the lithium battery protection board testing device according to the present invention;
fig. 3 is a schematic diagram of connection between an internal element of the tool box and a lithium battery protection board and a load to be tested in the lithium battery protection board testing device of the present invention.
In the figure, 1-a tool box body, 2-an operation panel, 3-a tool plate, 4-a first voltage output module, 5-a second voltage output module, 6-a charge-discharge test circuit, 7-a tested lithium battery protection plate, 8-a load, 9-a wire hole, 11-a first power switch, 12-a second power switch, 13-a charge-discharge change-over switch, 14-an ammeter, 15-an over-voltage and under-voltage switch, 16-an analog voltage wiring terminal, 17-a temperature switch, 18-an analog temperature wiring terminal, 19-DO output test indicator light, 20-an output voltage test indicator light, 21-DO output test wiring terminal, 22-an output voltage test wiring terminal, 23-a multi-way master switch, 24-DI switch and 25-a balance switch.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. These embodiments are not intended to limit the present invention, and structural, methodological, or functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
As shown in fig. 1-3, a lithium battery protection board testing device includes a tool box body 1, an operation panel 2 is arranged on the surface of the tool box body, a tool plate 3, a first voltage output module 4, a second voltage output module 5 and a charge and discharge testing circuit 6 are arranged in the tool box body 1, the first voltage output module 4 supplies power to the tool plate 3, the second voltage output module 5 supplies power to the charge and discharge testing circuit 6, an analog voltage testing circuit, an analog temperature testing circuit, a DO output testing circuit and an output voltage testing circuit which are connected with a tested lithium battery protection board and used for detecting the tested lithium battery protection board are arranged on the tool plate 3, and the charge and discharge testing circuit 6 is respectively electrically connected with a tested lithium battery protection board 7 and a load 8. The load 8 is generally a 600W electronic load, and is mainly used as a charge-discharge circuit load.
Here, the first voltage output module and the second voltage output module are used for converting a 220V alternating voltage into a common voltage for a lithium battery protection board test, for example, the first voltage output module is a 24V output circuit for converting a 220V alternating voltage into 24V, and the second voltage output module is a 3.3V output circuit for converting a 220V alternating voltage into 3.3V. Wherein, the above 24V and 3.3V can be replaced by other voltages for practical use.
In order to facilitate the control of the activation and the deactivation of the first voltage output module 4 and the second voltage output module 5, a first power switch 11 and a second power switch 12 may be disposed on the surface of the tool box body 1, the first power switch 11 is electrically connected with the first voltage output module 4, and the second power switch 12 is electrically connected with the second voltage output module 5. In order to facilitate the switching between the charging test and the discharging test, a charging and discharging switch 13 may be disposed on the surface of the tool box body 1, and the charging and discharging switch 13 is electrically connected with the charging and discharging test circuit 6.
To the analog voltage test, operating panel 2 is last to be equipped with a plurality of ammeter 14 and cross under-voltage switch 15, 1 surface of tool box body is equipped with analog voltage binding post 16, ammeter 14, cross under-voltage switch 15, analog voltage binding post 16 and be connected with analog voltage test circuit electricity respectively. The ammeter 14, the overvoltage and undervoltage switch 15 and the analog voltage wiring terminal 16 can be correspondingly arranged in groups to realize multi-path simultaneous testing, the number of the groups can be any number between 1 and 16, and a multi-path main switch 23 can be arranged for simultaneous opening or closing of the multi-path testing; the electric meter 14 may be a voltage current dual display meter head.
The analog voltage testing circuit simulates 3.3V voltage output, and the resistance value in the analog voltage testing circuit is changed through the under-voltage switch 15 to simulate high and low voltage, so that the tested lithium battery protection board is in an over-voltage and under-voltage protection state and gives an alarm, and under-voltage alarm testing is completed.
Particularly, if the analog voltage testing circuit is further provided with a balance testing submodule for balance testing of the battery cells, the operation panel 2 may be provided with a corresponding balance switch 25 for turning on or off the balance testing submodule.
To the simulation temperature test, can be equipped with temperature switch 17 on the operating panel 2, 1 surface of frock box body is equipped with simulation temperature binding post 18, temperature switch 17, simulation temperature binding post 18 are connected with simulation temperature test circuit electricity respectively. The temperature switch 17 and the analog temperature wiring terminal 18 can be correspondingly arranged in groups to realize multi-channel simultaneous testing, and the number of the groups can be any number between 1 and 17.
The simulated temperature test circuit can simulate the temperature by 25 ℃ by adopting a 100K resistor, and the deviation is not more than 3 ℃. The simulated temperature resistance value in the simulated temperature test circuit is changed through the temperature switch 17, so that the protection board is in an over-temperature protection state and gives an alarm, and the temperature alarm test is completed.
For the control signal output test and the output voltage test, a DO output test indicator lamp 19 and an output voltage test indicator lamp 20 may be arranged on the operation panel 2, a DO output test connection terminal 21 and an output voltage test connection terminal 22 are arranged on the surface of the tool box body, the DO output test indicator lamp 19 and the DO output test connection terminal 21 are respectively electrically connected with a DO output test circuit, and the output voltage test indicator lamp 20 and the output voltage test connection terminal 22 are respectively electrically connected with the output voltage test circuit.
In particular, the operation panel 2 may further be provided with a DI switch 24 for controlling the access of signals; the output voltage test circuit can be divided into a 5V output test and a 12V output test, and can be simultaneously divided into two paths of tests.
The switching terminal is adopted in the setting, the testing of multiple single boards can be realized by replacing the testing sleeve wire, even if the single board changes the wire sequence through the customer requirement, the internal wiring of the tool still does not need to be moved, and the updating and the upgrading can also be realized by optimizing and updating the switching testing cable.
In addition, the surface of the tool box body 1 can be provided with a wire hole 9 for passing a charging and discharging cable. The wiring of the charging and discharging part can adopt a 100A large-current crocodile clip, the load 8 can adopt a 600W electronic load, the single plate without reserved charging and discharging and nut seats can be normally used, the supportable range of the charging and discharging current in the test is 0-100A, and the requirement of a large-current test can be completely met.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (9)
1. The utility model provides a lithium battery protection shield testing arrangement, a serial communication port, includes the frock box body, frock box body surface is equipped with operating panel, is equipped with frock board, first voltage output module, second voltage output module and charge-discharge test circuit in the frock box body, first voltage output module gives the frock board power supply, second voltage output module gives the charge-discharge test circuit power supply, be equipped with on the frock board and be connected with the lithium battery protection shield that is surveyed and be used for detecting analog voltage test circuit, analog temperature test circuit, DO output test circuit and the output voltage test circuit of being surveyed lithium battery protection shield, charge-discharge test circuit is connected with lithium battery protection shield, load electricity that are surveyed respectively.
2. The lithium battery protection board testing device as claimed in claim 1, wherein the first voltage output module is a 24V output circuit for converting 220V ac voltage into 24V, and the second voltage output module is a 3.3V output circuit for converting 220V ac voltage into 3.3V.
3. The lithium battery protection board testing device as claimed in claim 1, wherein a first power switch, a second power switch and a charge and discharge switch are disposed on the surface of the tool box body, the first power switch is electrically connected to the first voltage output module, the second power switch is electrically connected to the second voltage output module, and the charge and discharge switch is electrically connected to the charge and discharge testing circuit.
4. The lithium battery protection board testing device as claimed in claim 1, wherein an electricity meter and an over-under voltage switch are disposed on the operation panel, an analog voltage connecting terminal is disposed on the surface of the tool box body, and the electricity meter, the over-under voltage switch and the analog voltage connecting terminal are electrically connected to the analog voltage testing circuit respectively.
5. The lithium battery protection board testing device as claimed in claim 4, wherein the electric meter, the under-voltage switch and the analog voltage terminals are correspondingly arranged in groups to realize multi-channel simultaneous testing, and the number of the groups is less than or equal to 16.
6. The lithium battery protection board testing device as claimed in claim 1, wherein a temperature switch is disposed on the operation panel, an analog temperature terminal is disposed on the surface of the tool box, and the temperature switch and the analog temperature terminal are electrically connected to the analog temperature testing circuit respectively.
7. The lithium battery protection board testing device as claimed in claim 6, wherein the temperature switch and the analog temperature terminal are correspondingly arranged in groups to realize multi-channel simultaneous testing, and the number of the groups is less than or equal to 17.
8. The lithium battery protection board testing device as claimed in claim 1, wherein a DO output test indicator lamp and an output voltage test indicator lamp are arranged on the operation panel, a DO output test connection terminal and an output voltage test connection terminal are arranged on the surface of the tool box body, the DO output test indicator lamp and the DO output test connection terminal are respectively electrically connected with the DO output test circuit, and the output voltage test indicator lamp and the output voltage test connection terminal are respectively electrically connected with the output voltage test circuit.
9. The lithium battery protection board testing device as claimed in claim 1, wherein the surface of the tool box body is provided with a wire hole for passing a charging and discharging cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121319489.0U CN215641727U (en) | 2021-06-15 | 2021-06-15 | Lithium battery protection board testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121319489.0U CN215641727U (en) | 2021-06-15 | 2021-06-15 | Lithium battery protection board testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215641727U true CN215641727U (en) | 2022-01-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121319489.0U Active CN215641727U (en) | 2021-06-15 | 2021-06-15 | Lithium battery protection board testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215641727U (en) |
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2021
- 2021-06-15 CN CN202121319489.0U patent/CN215641727U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000, Building 358, North, Zhongdian Lighting R&D Center, No. 010 Keji South 12th Road, High tech Zone Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Weimu Technology Co.,Ltd. Country or region after: China Address before: 518054 705-706, block B, building 7, Shenzhen Bay science and technology ecological park, 1819 Shahe West Road, high tech community, Yuehai street, Nanshan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Shenkuo Technology Innovation Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240221 Address after: 310000, 3rd Floor, Building 1, Yongle Village, Cangqian Street, Yuhang District, Hangzhou City, Zhejiang Province Patentee after: HANGZHOU VMHSTAR TECHNOLOGY Co.,Ltd. Country or region after: China Address before: 518000, Building 358, North, Zhongdian Lighting R&D Center, No. 010 Keji South 12th Road, High tech Zone Community, Yuehai Street, Nanshan District, Shenzhen, Guangdong Province Patentee before: Shenzhen Weimu Technology Co.,Ltd. Country or region before: China |