CN218674153U

CN218674153U - Battery pack testing device

Info

Publication number: CN218674153U
Application number: CN202223079152.4U
Authority: CN
Inventors: 汪安国
Original assignee: Chuneng New Energy Co Ltd
Current assignee: Chuneng New Energy Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-03-21
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a battery package testing arrangement. It includes control module, shaking table, vibration equipment, environmental simulation case and power module, shaking table, vibration equipment are all installed inside the environmental simulation case, the shaking table top is the installation face of battery package, vibration equipment installs on the shaking table, the control end of control module connects the control end of vibration equipment and the control end of environmental simulation case respectively, the power end of control module, vibration equipment and environmental simulation case is connected respectively to the power module output. The utility model discloses the test system contains vibrating equipment, environmental simulation case, charge-discharge apparatus, and the test function is more comprehensive, reliable; and the vibration equipment and the battery pack are arranged in the environment simulation box and are uniformly controlled through CAN communication through an external control module, so that the system is high in integration degree and integration degree.

Description

Battery pack testing device

Technical Field

The utility model belongs to the technical field of power battery, concretely relates to battery package testing arrangement.

Background

Along with the enhancement of the environmental awareness of people, electric automobiles are more and more favored. The battery pack is used as a core part of the electric automobile, and the performance of the battery pack directly influences the development of the electric automobile. When the automobile power battery pack is used for performance test, comprehensive performance tests in various aspects such as temperature, humidity, vibration, air pressure, charge and discharge need to be carried out.

The testing functions of the currently adopted battery testing system are not comprehensive, for example, the battery testing system disclosed in patent CN207663026U only has the functions of charge and discharge testing and temperature and humidity testing, but lacks the functions of vibration testing and air pressure testing, and cannot meet the full-function testing requirements of the battery pack.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a battery package testing arrangement that the function is comprehensive, integrate highly in order to solve the not enough of above-mentioned background art existence.

The utility model adopts the technical proposal that: the utility model provides a battery package testing arrangement, includes control module, shaking table, vibration equipment and environmental simulation case, shaking table, vibration equipment are all installed in the environmental simulation incasement portion, the shaking table top is the installation face of battery package, vibration equipment installs on the shaking table, the control end of vibration equipment and the control end of environmental simulation case are connected respectively to control module's control end, the power end of control module, vibration equipment and environmental simulation case is connected respectively to the power module output.

Furthermore, the vibration equipment comprises a driving module and a vibration generator, wherein the control end of the control module is connected with the control end of the driving module, the driving end of the driving module is connected with the driving end of the vibration generator, and the vibration generator is installed at the bottom or the peripheral edge of the vibration table.

Further, the vibration generator is provided in plurality.

Further, still include charge and discharge equipment, the control end of control module connects charge and discharge equipment's control end, and charge and discharge equipment's transmission end connects high voltage distribution box and BMS on the battery package.

Furthermore, the control device further comprises a control electric cabinet, and the control module, the power supply module and the charging and discharging equipment are all installed inside the control electric cabinet.

The utility model has the advantages that:

1. the utility model discloses test system contains vibrating equipment, environmental simulation case, charge-discharge apparatus, can simulate the vibration test of battery package in the whole car driving process through vibrating equipment, the connection performance of measurable quantity battery package high-low voltage circuit; the service performance of the battery pack in different environments (temperature, humidity, air pressure/corresponding altitude) can be simulated through the environment simulation box; the charging and discharging performance of the battery pack is tested through the charging and discharging equipment, so that the testing function is more comprehensive and reliable; and the vibration equipment and the battery pack are arranged in the environment simulation box and are uniformly controlled through CAN communication through an external control module, so that the system is high in integration degree and integration degree.

2. The utility model discloses set up power module and supply power to control module, vibrating equipment, environmental simulation case, even when commercial power supply unusual fault, also can carry out normal functional test to the battery package, guaranteed the continuity and the reliability of test.

3. The utility model discloses put control module, power module, charging and discharging equipment equipartition in the switch board, each equipment is concentrated and is arranged, and the control management of being convenient for has improved efficiency of software testing.

Drawings

Fig. 1 is a schematic view of the structural principle of the present invention.

Fig. 2 is a schematic diagram of the control and power supply connection of the present invention.

In the figure, 1 — control module; 2-a battery pack; 3-a vibration table; 4-an environmental simulation box; 5-a driving module; 6-a vibration generator; 7-charging and discharging equipment; 8-a high voltage distribution box; 9-BMS; 10-a power supply module; 11-control the electric cabinet; 12-a communication harness; 13-power supply wiring harness.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Furthermore, the technical features mentioned in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1 and 2, the utility model provides a battery pack testing device, which comprises a control module 1, a vibration table 3, a vibration device and a ringEnvironmental simulation case 4 and power module 10, shaking table 3, vibrating device are all installed inside environmental simulation case 4, the top of shaking table 3 is the installation face of battery package, and the battery package is fixed in the 3 tops of shaking table promptly, vibrating device installs on shaking table 3, control module 1's control end is respectively through communication pencil 12 connection vibrating device's control end and environmental simulation case 4's control end, control module 1, vibrating device and environmental simulation case 4's power end is connected respectively to power module 10 output. The utility model can simulate the vibration test of the battery pack in the running process of the whole vehicle through the vibration equipment, can measure the connection performance and the common failure mode of the high-low voltage circuit of the battery pack, and provides data basis for the design and the transformation of a subsequent battery system; the service performance of the battery pack in different environments (the temperature is 40 ℃ below zero to 85 ℃, the humidity is 15 percent to 98 percent, and the air pressure is 101 KPa to 28 KPa/corresponding altitude is 0 to 6500 m) can be simulated through the environment simulation box, so that the test function is more comprehensive and reliable; and the vibration equipment and the battery pack are arranged in the environment simulation box and are uniformly controlled through CAN communication through an external control module, so that the system is high in integration degree and integration degree. The control module 1 is a conventional embedded microprocessor, the model is preferably CANFDNET-200U, and messages on a communication harness can be processed quickly and in real time to realize test control of the battery pack. The environment simulation box 4 is conventional environment simulation equipment, and the model is preferably a security detection walk-in environment control box TAHW-8m ³ . The vibration table is a DC series universal water-cooling electric vibration platform (3T).

In the above scheme, the vibration equipment includes drive module 5 and vibration generator 6, and drive module 5 is conventional machine controller, and drive module 5 can install in environmental simulation case 4, also can install in control electric cabinet 11 alone, machine controller's control end is connected to control module 1's control end, machine controller drive vibration generator work, vibrates with certain vibration frequency, vibration generator 6 is installed in the bottom or the edge all around of shaking table 3. Specifically, four vibration generators 6 are arranged, the four vibration generators are respectively installed at the bottoms of four corners of the vibration table 3, a power supply end of the driving module 5 is connected with an output end of the power supply module 10, the vibration generators 6 are conventional vibration generation devices, and the type of the vibration generators is preferably a universal motor YZUC-140-6.

In the above scheme, still include charge and discharge equipment 7, the control end of charge and discharge equipment 7 is connected to the control end of control module 1, and alternating voltage is connected to charge and discharge equipment's input, and high voltage distribution box 8 and BMS 9 on battery package 2 are connected to charge and discharge equipment's 7 transmission end. The charging and discharging performance of the battery pack 2 is tested through the charging and discharging equipment 7, so that developers can know information such as charging and discharging time, voltage, current, electric quantity states and the like of the battery pack in different environments in time, and development labor and cost are saved. The charging and discharging device 7 is a conventional battery charging and discharging test device, and is preferably NELCT1003030 in model number.

In the above scheme, the power supply device further comprises a power supply module 10, wherein the output end of the power supply module 10 is respectively connected with the power ends of the control module, the vibration equipment and the environment simulation box 4, the input of the power supply module can be connected with a mains supply to supply power for each module, and the power supply module can also be connected with the output end of the battery pack to supply power. When the battery pack outputs electric energy to the power supply module, the vibration equipment can simulate the vibration test of the battery pack and can also be used as a load to simulate the load capacity of the battery pack. The power supply module 10 can also store electric energy in advance, and can perform normal function test on the battery pack even if the mains supply is abnormal, so that the continuity and reliability of the test are ensured. The power supply module 10 is a conventional power supply module with a super capacitor, and the model is preferably a MAXWELL M23 super capacitor bank.

In the above scheme, still include the control electricity cabinet 11, control module 1, power module 10 and charge and discharge equipment 7 are all installed inside control electricity cabinet 11, set up corresponding power supply interface (like different high pressure, low voltage interface) in the control electricity cabinet 11, communication interface (like USB, RS485, interfaces such as RS 232), provide the installation basis for the connection of each equipment, module, with control module 1, power module 10, charge and discharge equipment 7 equipartition arrangement in the control electricity cabinet, each equipment is concentrated and is arranged, the control management of being convenient for, and efficiency of software testing is improved.

The utility model discloses a working process as follows:

after the battery pack testing device is connected in the above manner, the control module 1 controls the environment simulation box 4 to achieve the temperature environment (such as 30 ℃), the humidity environment (such as 20%) and the altitude environment (such as 150 KPa) required by the battery pack testing; then the control module 1 sends a battery pack charging and discharging test instruction to the charging and discharging equipment 7, the charging and discharging equipment 7 obtains the charging and discharging test instruction through a communication wire harness, the charging and discharging interface sends the charging and discharging test instruction to the battery pack BMS 9, the BMS receives the charging and discharging equipment instruction and sends the instruction to the high-voltage distribution box 8, a main positive relay and a main negative relay of the high-voltage distribution box 8 of the battery pack are closed, corresponding battery pack information parameters are fed back to the charging and discharging equipment, and a charging and discharging message generated by the battery pack is transmitted to the communication wire harness through the BMS to be obtained by the control module 1; when the charge and discharge test is carried out, the control module 1 sends a vibration test instruction (such as power 1.5 KW) to the driving module 5, the driving module 5 controls the vibration frequency of the vibration generator 6 according to the corresponding power, and different vibration frequencies can correspond to different road conditions. By observing the line connection condition of the battery pack 2 and the charge and discharge message information received by the control module 1, whether the line connection of the battery pack in different environments meets requirements, whether the charge and discharge performance reaches the standard and whether other designs are reliable can be judged.

The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.

Claims

1. A battery pack testing device is characterized in that: including control module (1), shaking table (3), vibration equipment, environmental simulation case (4) and power module (10), shaking table (3), vibration equipment are all installed inside environmental simulation case (4), shaking table (3) top is the installation face of battery package, vibration equipment installs on shaking table (3), the control end of vibration equipment and the control end of environmental simulation case (4) are connected respectively to the control end of control module (1), the power end of control module (1), vibration equipment and environmental simulation case (4) is connected respectively to power module (10) output.

2. The battery pack testing device according to claim 1, wherein: the vibration equipment comprises a driving module (5) and a vibration generator (6), wherein the control end of the control module (1) is connected with the control end of the driving module (5), the power end of the driving module (5) is connected with the power end of a power supply module (10), the driving end of the driving module (5) is connected with the driving end of the vibration generator (6), and the vibration generator (6) is installed at the bottom or the peripheral edge of the vibration table (3).

3. The battery pack testing apparatus according to claim 2, wherein: the vibration generator (6) is provided in plurality.

4. The battery pack testing device according to claim 1, wherein: the battery pack is characterized by further comprising a charging and discharging device (7), the control end of the control module (1) is connected with the control end of the charging and discharging device (7), and the transmission end of the charging and discharging device (7) is connected with a high-voltage distribution box and a BMS (battery management system) on the battery pack (2).

5. The battery pack testing apparatus according to claim 4, wherein: the charging and discharging device is characterized by further comprising an electric control cabinet (11), wherein the control module (1), the power supply module (10) and the charging and discharging equipment (7) are all installed inside the electric control cabinet (11).