CN212207617U - Battery pack charging and discharging test device - Google Patents
Battery pack charging and discharging test device Download PDFInfo
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- CN212207617U CN212207617U CN202020278006.6U CN202020278006U CN212207617U CN 212207617 U CN212207617 U CN 212207617U CN 202020278006 U CN202020278006 U CN 202020278006U CN 212207617 U CN212207617 U CN 212207617U
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Abstract
The utility model relates to a group battery measurement testing arrangement, it is mainly used for group battery measurement automatic test. The utility model discloses a touch all-in-one, temperature acquisition appearance, voltage acquisition appearance, DC power supply, direct current electronic load appearance, oscilloscope, PLC and low pass filter for carrying out the human-computer interface operation, temperature acquisition appearance, voltage acquisition appearance, DC power supply, direct current electronic load appearance, oscilloscope and PLC all communicate with the touch all-in-one, and low pass filter links to each other with the oscilloscope. The utility model relates to a rationally, safe and reliable, the function is abundant, can carry out the single core battery charge-discharge in group battery and the group battery, satisfies manifold test requirement.
Description
Technical Field
The utility model relates to a device especially relates to a group battery measurement testing arrangement, and it is mainly used for group battery measurement automatic test.
Background
With the development of science and technology, the requirements on the safety performance of power batteries are more and more strict, and items needing detection are more and more, whether the power batteries or the portable lithium batteries are satisfied by end users or not is directly determined by the performances of the power batteries and the portable lithium batteries, and the requirements on the safety performance, the reliability performance and the cycle life of the batteries are higher and higher. With the continuous development of the application, the performance problem of the battery is widely concerned, effective battery quality detection is provided, and the charging and discharging of the battery used by a user safely is very important.
The traditional battery charging and discharging machine set is used for carrying out charging and discharging tests on a battery pack, the battery charging and discharging machine monitors the total voltage and the total current output by the battery pack and controls charging and discharging according to the total voltage and the total current in the charging and discharging process, and the battery charging and discharging machine can only reflect the whole total voltage, is single in function and monitors the state one side.
The invention discloses an invention patent named as a battery pack charging and discharging test system in Chinese patent with publication number 108169684A, publication number is 2018, 06, 15. The battery management system comprises a first battery pack, a second battery pack, a first battery management system connected with the first battery pack, a second battery management system connected with the second battery pack and adapters respectively connected with the first battery management system and the second battery management system; when the first battery pack is subjected to a discharge test and the second battery pack is subjected to a charge test, the adapter adjusts the discharge voltage and the discharge current of the first battery pack into the charge voltage and the charge current of the second battery pack so as to charge the second battery pack; when the first battery pack is subjected to a charging test and the second battery pack is subjected to a discharging test, the adapter adjusts the discharging voltage and the discharging current of the second battery pack to the charging voltage and the charging current of the first battery pack so as to charge the first battery pack. Although the battery pack charging and discharging test system disclosed by the patent has higher test efficiency and prolongs the service life of charging and discharging equipment, the test function is single, and the requirements and accuracy of the existing detection items cannot be met, so that the battery pack charging and discharging test system also has the defects.
Therefore, it is necessary to provide a battery pack charging and discharging test system which is reasonable in design, safe, reliable, rich in functions and capable of meeting various test requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the above-mentioned not enough that exists among the prior art, and provide a reasonable in design, safe and reliable, the function is abundant, can carry out the single core battery charge-discharge in group battery and the group battery, satisfies the group battery charge-discharge testing arrangement of manifold test requirement.
The utility model provides a technical scheme that above-mentioned problem adopted is: the battery pack charging and discharging test device comprises a touch all-in-one machine for executing human-computer interface operation, and is characterized in that: the touch all-in-one machine is characterized by further comprising a temperature acquisition instrument, a voltage acquisition instrument, a direct-current power supply, a direct-current electronic load instrument, an oscilloscope, a PLC and a low-pass filter, wherein the temperature acquisition instrument, the voltage acquisition instrument, the direct-current power supply, the direct-current electronic load instrument, the oscilloscope and the PLC are all communicated with the touch all-in-one machine, and the low-pass filter is connected with the oscilloscope.
Preferably, temperature data collection appearance and voltage data collection appearance are multichannel data acquisition appearance.
Preferably, the temperature acquisition instrument adopts 34970A configuration three groups 34901A20 channel multiplexer, and six-bit half high precision universal meter is built in, but 60 way temperature acquisition.
Preferably, the voltage acquisition instrument of the present invention adopts 34970a to configure three groups of 34901a20 channel multiplexers, and can acquire 60-channel voltage.
Preferably, the direct current power supply of the present invention adopts a direct current adjustable power supply with a communication port, wherein the voltage range is 0-30V, and the current range is 0-10A.
Preferably, the dc electronic load meter of the present invention employs IT8512B programmable dc electronic load.
Preferably, the working mode of the dc electronic load meter comprises a fixed battery, a fixed resistor, a fixed voltage and a fixed power.
Preferably, the oscilloscope of the utility model adopts an HT6022USB oscilloscope, and the oscilloscope is a dual-channel input.
Preferably, the PLC of the present invention employs DVP32ES200R to configure two DVP24XN200R IO expansion modules, and has 64 output points in total.
Compared with the prior art, the utility model, have following advantage and effect: 1. the whole test system has reasonable design, safety, reliability and rich functions, has pulse charging and discharging capacity, and can be applied to the internal resistance and capacity characteristics of a battery core/module; the stability and the precision are high, the absolute precision in a wide voltage/current range is ensured, and the utilization rate of equipment is improved; the response speed is high, the sampling rate is high, and the method is suitable for the charge and discharge tests of various power batteries; the system adopts a standard modular design, is easy to expand hardware, expands the application range and is convenient for later maintenance; 2. the automatic test system for performance detection of various power batteries has four test types: a charge-discharge test, a charge test, a discharge test and an overpressure charge test; two test subjects: a battery pack and a single battery; two kinds of charging power: the direct current power supply and the battery pack are provided with chargers; four load modes: a fixed battery, a fixed resistor, a fixed voltage and a fixed power; the system can charge and discharge the battery pack, can also independently charge and discharge the single-core battery in the battery pack, is independently controlled by multiple channels, and can alternately charge and discharge the multiple-channel battery; the battery cycle life test can be carried out, the life cycle of the battery is evaluated, the alarm and protection setting is perfected, and the over-discharge, over-charge and other accidental faults of the battery are effectively prevented.
Drawings
Fig. 1 is a schematic diagram of a test system according to an embodiment of the present invention.
Fig. 2 is a schematic view of a measurement control structure according to an embodiment of the present invention.
In the figure: the system comprises a touch all-in-one machine 1, a temperature acquisition instrument 2, a voltage acquisition instrument 3, a direct current power supply 4, a direct current electronic load instrument 5, an oscilloscope 6, a PLC 7, a low-pass filter 8, a relay contact 10, a battery pack 11, a charger 12 and a direct current shunt 13.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Examples are given.
Referring to fig. 1 to 2, the battery pack charging and discharging test device of the embodiment includes a touch all-in-one machine 1 for executing human-computer interface operations, a temperature collector 2, a voltage collector 3, a dc power supply 4, a dc electronic load meter 5, an oscilloscope 6, a PLC 7 and a low pass filter 8, wherein the temperature collector 2, the voltage collector 3, the dc power supply 4, the dc electronic load meter 5, the oscilloscope 6 and the PLC 7 are all communicated with the touch all-in-one machine 1, and the low pass filter 8 is connected with the oscilloscope 6.
The temperature collector 2 and the voltage collector 3 of the present embodiment are both multi-channel data collectors.
Referring to fig. 1, a touch all-in-one machine 1 is used for main control and executing human-computer interface operation; the temperature acquisition instrument 2 is used for temperature acquisition, adopts 34970A of German corporation to configure three groups of 34901A20 channel multiplexers, is internally provided with a 6-bit semi-high precision multimeter, and can acquire 60 paths of temperature.
The voltage acquisition instrument 3 is used for voltage acquisition, adopts 34970A of German corporation to configure a multiplexer with three groups of 34901A20 channels, and can acquire 60 paths of voltage.
The direct-current power supply 4 is used for charging a single battery, and adopts a KA301 3010P direct-current adjustable power supply with a communication port, wherein the voltage range is 0-30V, and the current range is 0-10A.
The direct current electronic load instrument 5 of the embodiment adopts an IT8512B programmable direct current electronic load, and has four working modes: the constant-power battery comprises a constant battery, a constant resistor, a constant voltage and a constant power.
The electronic load of the embodiment is switched to discharge the whole battery pack or to discharge one path of battery in the battery pack independently, so that the electronic load is a direct current electronic load instrument 5.
The oscilloscope 6 of the embodiment adopts an HT6022USB oscilloscope 6 with dual-channel input.
The low-pass filter 8 of this embodiment has a cut-off frequency of 5kHZ (a requirement in the standard first part of the safety requirements for hand-held portable power and garden tools GB 3883.1-2014).
In the present embodiment, the PLC 7 configures 2 blocks of DVP24XN200R IO extension modules by using the dada DVP32ES200R, and has 64-point output in total.
The control process of the battery pack charge-discharge testing device in the embodiment is as follows: referring to fig. 2, in the measurement control chart, the PLC 7 controls the relay contact 10 to switch on and off 50 voltage measurement circuits, a single battery in the battery pack 11 to be tested is connected to the input end of the voltage measurement circuit, the multi-channel data acquisition instrument 3 acquires the voltage of the single battery, 8 paths of 10A direct current shunts 13 are connected in series between the output end of the single battery and the input end of the voltage acquisition circuit according to the test requirement, the voltage acquisition instrument 3 with the dotted line connected with the battery pack 11 independently acquires the total voltage of the battery pack 11, the temperature acquisition instrument 2 acquires the temperature of each single battery in the battery pack 11, and the charger 12 matched with the battery pack 11 charges the battery pack 11 according to the test requirement. The output end of the 50 paths of voltage measurement loops is connected with a bus, a direct current power supply 4 is connected to the bus according to test requirements to charge a single battery of a battery pack 11, a direct current electronic load instrument 5 is connected to the bus according to the test requirements to discharge the single battery of the battery pack 11, the direct current electronic load instrument 5 is connected with a dotted line of the battery pack 11 and connected to the battery pack 11 according to the test requirements to discharge, the direct current power supply 4 and the direct current electronic load instrument 5 are controlled to be interlocked with a relay for switching on and off the bus, the bus cannot be connected at the same time, and an HT6022USB oscilloscope 6 is connected to the bus through a low pass filter 8 according to the test requirements to.
And will be apparent to those skilled in the art from the foregoing description.
In addition, it should be noted that the specific embodiments described in the present specification may be different in the components, the shapes of the components, the names of the components, and the like, and the above description is only an example of the structure of the present invention. All the equivalent changes or simple changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions may be made by those skilled in the art without departing from the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a group battery charge-discharge testing arrangement, is including touch all-in-one (1) that is used for carrying out human-computer interface operation, its characterized in that: the touch all-in-one machine is characterized by further comprising a temperature acquisition instrument (2), a voltage acquisition instrument (3), a direct current power supply (4), a direct current electronic load instrument (5), an oscilloscope (6), a PLC (7) and a low-pass filter (8), wherein the temperature acquisition instrument (2), the voltage acquisition instrument (3), the direct current power supply (4), the direct current electronic load instrument (5), the oscilloscope (6) and the PLC (7) are all communicated with the touch all-in-one machine (1), and the low-pass filter (8) is connected with the oscilloscope (6).
2. The battery pack charge and discharge test apparatus according to claim 1, characterized in that: the temperature acquisition instrument (2) and the voltage acquisition instrument (3) are both multi-channel data acquisition instruments.
3. The battery pack charge and discharge test device according to claim 1 or 2, characterized in that: the temperature acquisition instrument (2) adopts 34970A to configure three groups of 34901A20 channel multiplexers, a six-bit semi-high precision multimeter is arranged in the temperature acquisition instrument, and 60 paths of temperature acquisition can be realized.
4. The battery pack charge and discharge test device according to claim 1 or 2, characterized in that: the voltage acquisition instrument (3) adopts 34970A to configure three groups of 34901A20 channel multiplexers, and can acquire 60 paths of voltage.
5. The battery pack charge and discharge test apparatus according to claim 1, characterized in that: the direct current power supply (4) adopts a direct current adjustable power supply with a communication port, the voltage range is 0-30V, and the current range is 0-10A.
6. The battery pack charge and discharge test apparatus according to claim 1, characterized in that: the direct current electronic load instrument (5) adopts IT8512B programmable direct current electronic load.
7. The battery pack charge-discharge test apparatus according to claim 1 or 6, characterized in that: the working modes of the direct current electronic load instrument (5) comprise a fixed battery, a fixed resistor, a fixed voltage and a fixed power.
8. The battery pack charge and discharge test apparatus according to claim 1, characterized in that: the oscilloscope (6) adopts an HT6022USB oscilloscope, and the oscilloscope (6) is a dual-channel input.
9. The battery pack charge and discharge test apparatus according to claim 1, characterized in that: the PLC (7) adopts the DVP32ES200R to configure two DVP24XN200R IO expansion modules, and the total output is 64 points.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020278006.6U CN212207617U (en) | 2020-03-09 | 2020-03-09 | Battery pack charging and discharging test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020278006.6U CN212207617U (en) | 2020-03-09 | 2020-03-09 | Battery pack charging and discharging test device |
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| Publication Number | Publication Date |
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| CN212207617U true CN212207617U (en) | 2020-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020278006.6U Active CN212207617U (en) | 2020-03-09 | 2020-03-09 | Battery pack charging and discharging test device |
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| CN (1) | CN212207617U (en) |
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