New energy automobile power battery maintenance work station

Abstract

The utility model relates to a new energy automobile power battery maintenance work station which comprises a work table arranged on a movable platform. The equalization module is arranged on the workbench and performs equalization maintenance on the power battery; the air tightness detection module is arranged on the workbench and is used for detecting the air tightness of the power battery; the charging and discharging management module is arranged on the workbench and detects the charging and discharging performance of the power battery; the tool storage box is arranged on the workbench, the balancing module, the air tightness detection module and the charging and discharging management module on the market are integrally installed on the workbench, and the workbench can be moved conveniently so as to detect and maintain the power battery of the new energy automobile. The workstation can significantly improve the convenience of detection and maintenance of the power battery of the new energy automobile, and achieves the purpose of taking and using the power battery at any time.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy battery maintenance, in particular to a new energy vehicle power battery maintenance workstation. Background Art

[0002] In the actual use of new energy vehicles, common faults of new energy lithium battery modules include: module cell capacity imbalance failure, cell itself bulging due to the shedding of plate active material, excessive internal resistance failure, poor contact failure due to loose welding of cell poles, and insulation failure caused by deformation, damage, and leakage of single cells due to external force squeezing and collision of the module. Due to differences in the cell use process and materials, as well as the temperature, humidity and other environmental conditions during actual use of the battery, new energy lithium battery modules have different SOCs of single cells inside the battery pack, and the cell itself has a certain amount of self-discharge due to the shedding of plate active material and the potential difference between the upper and lower plates. Finally, the voltage of the single cells is different and imbalance occurs. The battery module is balanced by the existing power battery balancer so that the voltage, capacity and status of each battery cell in the battery pack are relatively consistent, thereby improving the performance and life of the entire battery pack; the second is: the battery pack of the new energy lithium battery module is squeezed, deformed or damaged. For the battery pack of the new energy lithium battery module, the module is squeezed and collided by external forces, causing the battery pack shell to be deformed or damaged. The outer shell needs to be repaired or replaced, and the damaged module or single cell needs to be replaced at the same time. Replacing a single cell usually requires charging and discharging tests on other cells in the module where the single cell is located to test the capacity of the same type of cell in order to match the capacity of the new single cell and then balance the entire module and adjust the capacity. Maintenance and replacement of the battery pack shell or internal single cells / modules require unpacking the battery pack. Battery packs that are squeezed and deformed by external forces or unpacked can be regarded as destroying the sealing environment of the original battery pack, and the battery pack sealing test is required.

[0003] The above-mentioned new energy lithium battery module requires a balancer or other sealing detection equipment for actual maintenance. During the actual maintenance process, the functions of various devices are dispersed, making the actual maintenance operation very inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a new energy vehicle power battery maintenance workstation, which can integrate maintenance equipment such as a balancer and air tightness detection equipment on one workstation, thereby improving the convenience of maintaining new energy vehicle power batteries.

[0005] The following technical solutions are used to solve the technical problems in this utility model:

[0006] A new energy vehicle power battery maintenance workstation, including

[0007] A workbench, provided on a mobile platform;

[0008] A balancing module is provided on the workbench and performs balancing maintenance on the power battery;

[0009] An airtightness detection module is provided on the workbench and performs airtightness detection on the power battery;

[0010] A charge and discharge management module is provided on the workbench and is used to detect the charge and discharge performance of the power battery;

[0011] The tool storage box is arranged on the workbench.

[0012] The utility model also has the following technical features:

[0013] In one embodiment of the present invention, the balancing module includes multiple balancing modules, a low-voltage control module, a programming power supply module, an energy storage module and an inverter power supply module.

[0014] In one embodiment of the present invention, the charge and discharge management module includes a discharge load module, a discharge control board, a current detection sensor, a DC charging socket, a DC charging gun module, and a charge and discharge connection cable.

[0015] In one embodiment of the present invention, a maintenance diagnosis module is further provided on the workbench, and the maintenance diagnosis module includes a label printer, an industrial control host and a communication conversion board, a wireless communication device, a wireless scanner, a wireless keyboard and a mouse.

[0016] In one embodiment of the present invention, hangers are provided on both sides of the workbench to hang collection harnesses and tools.

[0017] In one embodiment of the present invention, the workbench includes an installation cabin, which is enclosed by a front panel, a rear side panel, a left side panel and a right side panel. The balancing module and the charge and discharge management module are installed in the installation cabin and are located in the area enclosed by the front panel, the rear side panel, the left side panel and the right side panel.

[0018] In one embodiment of the present invention, the rear side panel, the left side panel and the right side panel are all provided with heat dissipation holes, and a heat dissipation fan is provided on the heat dissipation holes. The heat generated by the discharge load module is dissipated by the heat dissipation fan.

[0019] The rear side plate is provided with two groups of hanging columns, the airtightness detection module is provided with two groups of waist holes, a metal electrode sheet is provided between the two hanging columns, and a power receiving electrode is provided correspondingly between the two groups of waist holes of the airtightness detection module. The two groups of waist holes on the airtightness detection module are hung on the two groups of hanging columns and the power receiving electrode is electrically conductive with the metal electrode sheet.

[0020] In one embodiment of the present invention, the tool storage box is arranged below the installation compartment, and the tool storage box is arranged on the workbench in a pull-out manner.

[0021] In one embodiment of the present invention, a signal light and a display are provided on the workbench.

[0022] In one embodiment of the present invention, an operating table is provided on the upper surface of the workbench.

[0023] Compared with the existing technology, the beneficial effect of the present invention is reflected in: the balancing module, air tightness detection module and charge and discharge management module on the market are integrated and installed on the workbench, and the workbench can be easily moved to implement the detection and maintenance of new energy vehicle power batteries. The workstation can significantly improve the convenience of detection and maintenance of new energy vehicle power batteries, and achieve the purpose of taking and using them at any time.

[0024] A workbench, provided on a mobile platform;

[0025] A balancing module is provided on the workbench and performs balancing maintenance on the power battery;

[0026] An airtightness detection module is provided on the workbench and performs airtightness detection on the power battery;

[0027] A charge and discharge management module is provided on the workbench and is used to detect the charge and discharge performance of the power battery;

[0028] The tool storage box is arranged on the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 、 Figure 2 、 Figure 3 They are schematic structural diagrams of three viewing angles of a new energy vehicle power battery maintenance workstation in one embodiment of the present utility model;

[0030] Figure 4 and Figure 5 This is an exploded view of a new energy vehicle power battery maintenance workstation in one embodiment of the present invention, split from two perspectives;

[0031] Figure 6 This is a schematic structural diagram of an airtightness detection module in one embodiment of the present invention;

[0032] Figure 7 It is a structural diagram of a balancing module in one embodiment of the present invention. DETAILED DESCRIPTION

[0033] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention.

[0034] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0035] Since the existing equipment for maintenance and testing of new energy vehicle power batteries are all independent equipment, such as lithium battery balancing equipment, air tightness testing equipment, current and voltage testing instruments, etc., the above-mentioned testing and maintenance equipment are relatively scattered when performing maintenance or testing on new energy vehicle power batteries, which is inconvenient during actual testing. Therefore, the utility model proposes a new energy vehicle power battery maintenance workstation, which can concentrate the new energy vehicle maintenance and testing equipment on a mobile workstation to solve the problem of the existing equipment being scattered and inconvenient. Figures 1 to 3 The workstation includes a workbench 10, which is arranged on a mobile platform 20; a balancing module 30, which is arranged on the workbench 10 and implements balancing maintenance on the power battery; an airtightness detection module 40, which is arranged on the workbench 10 and implements airtightness detection on the power battery; a charge and discharge management module 50, which is arranged on the workbench 10 and implements detection of the charge and discharge performance of the power battery; and a tool storage box 60, which is arranged on the workbench 10.

[0036] In one embodiment, see Figure 6 The airtightness test module 40 is a mature airtightness balancer currently available on the market. Fuzhou Fuguang Electronics Co., Ltd.'s FQ-80LN airtightness tester uses compressed air as the medium and a highly sensitive sensor to detect pressure changes, thereby determining the sealing of the battery pack under test. It offers portability, pollution-free operation, and rapid and accurate testing, effectively improving testing efficiency and product quality during the packaging, storage, and transportation of battery packs in the new energy industry.

[0037] In one embodiment, see Figure 7 The balancing module 30 includes multiple balancing modules 31 , a low voltage control module 35 , a programming power module 32 , an energy storage module 33 and an inverter power module 34 .

[0038] In a specific embodiment, the balancing module 31 is a mature balancing instrument on the existing market. The LIBL-1215NT lithium battery balancing maintenance tester of Fuzhou Fuguang Electronics Co., Ltd. can be selected, or the balancing instrument developed by the applicant itself can be selected. Please refer to patent number: 202211218956X, entitled: A high-voltage battery capacity balancing control module for new energy vehicles. This patent is a balancing instrument developed by the applicant itself.

[0039] The balancing module 31 is divided into a main control board + n slave boards (n is 1-5) plugged into the main control board. Each slave board is equipped with an external socket that can be connected to 12 elevator battery cell balancing lines, totaling 13. The slave boards are connected in parallel, and the number of slave boards can be increased or decreased according to the configuration. Each slave board works independently to collect voltage without interfering with each other. At the same time, the balancing line can also be used as a module discharge voltage collection line.

[0040] In one embodiment, the energy feeding function of the balancing module 31 can be used to implement discharge balancing during the balancing process. Part of the energy is stored in the power module through energy feeding and inversion and programming power modules to extend the working life of the workstation.

[0041] In a specific embodiment, the low voltage control module 35 is plugged into the main control board for communicating with the battery management module and controlling the operation of components.

[0042] In a specific embodiment, the programming power module 32 can be a brand KUAIQU (Shenzhen Kuaiqu Electronics Co., Ltd.), model SPPS-D605-232, which uses a 232 communication protocol.

[0043] In a specific embodiment, the energy storage module 33 can be a SUNBAT-SBK500 energy storage module of the brand "Guangheyuan".

[0044] In a specific embodiment, the inverter power module 34 is of the brand Green Source and has a model number of 1000W. The inverter power module 34 also supports communication control.

[0045] The low voltage control module 35 is plugged into the main control board and is used for communicating with the battery management module and controlling the operation of components.

[0046] The programming power supply module 32, energy storage module 33 and inverter power supply module 34 respectively realize indoor / outdoor AC power supply usage scenarios and outdoor self-contained power supply application scenarios, and at the same time support energy storage during module discharge to extend the continuous working requirements in outdoor working scenarios.

[0047] The programming power supply module 32 is mainly used for constant voltage and constant current charging output of the battery module. The energy storage module 33 is mainly used to provide a stable power supply for the workstation and power supply needs of external accessories when the workstation is used in an environment without AC power supply. The inverter power supply module 34 is mainly a bidirectional power conversion. One is to convert AC power into DC power to provide a stable power supply for the workstation and charge the energy storage module at the same time. The other is to act as a discharge load to convert part of the electrical energy into DC power when discharging the battery module to provide a stable power supply for the workstation and charge the energy storage module 33 at the same time.

[0048] In one embodiment, see Figure 4 and Figure 5 The charge and discharge management module 50 includes a discharge load module 51 , a discharge control board, a current detection sensor, a DC charging socket 54 , a DC charging gun module 55 , and a charge and discharge connection cable 56 .

[0049] In a specific embodiment, the discharge load module 51 can be a 1000W device produced by Shandong Lingguang Electric. When powered on, it can generate heat to consume the electrical energy of the power battery to be maintained through the heat.

[0050] In one specific embodiment, the discharge control board is used to control the start and stop and power of the discharge load module 51. The discharge load module 51 can dynamically adjust to adapt to different voltage levels and discharge powers to improve discharge efficiency based on the voltage gradient of the discharged battery module and the series and parallel relationship of the discharge load through the discharge control board.

[0051] In a specific embodiment, the current detection sensor may be a device of the brand Xinwei, model 16A-103C;

[0052] Among them, the DC charging socket 54 and the DC charging gun module 55 are devices of the brand Dostar and model NV3-DSD-EV125P, and are connected through the charging and discharging connection cable 56, which is convenient to use. The connection relationship and function of the DC charging socket 54 and the DC charging gun module 55 are existing mature equipment. Please refer to patent number: 202220700405.6, and the disclosed name is: A DC charging detection device for electric vehicles.

[0053] When the battery pack is heavy and inconvenient to move, the battery pack or module needs to be maintained in different capacities. The entire battery pack to be transported can also be discharged to reduce the SOC and meet the whole pack transportation standards.

[0054] During the discharge process, the discharge load module 51, discharge control board, current detection sensor, DC charging socket 54, DC charging gun module 55, and charge-discharge connection cable 56 can monitor the voltage of individual cells through the balancing acquisition line of the balancing module 31. Data can also be communicated with the battery manager through the low-voltage control harness of the low-voltage control module 35 to monitor the voltage status of all cells during discharge according to preset thresholds. Simultaneously, during the discharge process, the programmed power module 32 and inverter power module 34 of the power layer are used to feed energy and store a portion of the electrical energy in the energy storage module 33. When discharging a module or an entire pack in a divided capacity, the discharge control board rationally combines multiple discharge loads in series and parallel according to the input voltage to meet the requirements of multiple discharge power levels over a wide voltage range. It supports constant current and constant power discharge test modes, can simulate various actual load conditions of the battery pack, and comprehensively test the battery pack performance.

[0055] During the charging process, the module can be connected to the module through the charge and discharge connection cable 56, and the programming power module 32 of the power layer can be used to output a constant voltage and constant current power supply to charge the module and calibrate the SOC. The DC charging gun module 55 can also be used to use an external portable DC charger to calibrate the charger SOC of the vehicle battery pack.

[0056] It can be equipped with a DC fast charging socket and a DC fast charging gun. The battery pack can be charged through an external portable DC charger after being transferred through the workstation, and the battery pack SOC capacity can be calibrated.

[0057] In one embodiment, a maintenance diagnosis module is further provided on the workbench 10, and the maintenance diagnosis module includes a label printer 61, an industrial control host 62 and a communication conversion board, a wireless communication device, a wireless scanner 63, a wireless keyboard and a mouse.

[0058] In a specific embodiment, the industrial control host 62 can be ASUS, model PE200U, and the label printer 61 can be Yiwei, model Z60.

[0059] The industrial control host 62 is mainly used for the integrated software and hardware control of various functions of the workstation, data management, report generation and printing, and supports functions such as data synchronization upload to the cloud platform management. The test data and test results are automatically transmitted back to the workstation management terminal to form a test report, which supports report printing and test qualified label printing. The label printer 61, industrial control host 62 and communication conversion board, wireless communication equipment, wireless scanner 63, wireless keyboard and mouse all use existing mature communication protocols for communication connection.

[0060] In one embodiment, hangers 11 are provided on both sides of the workbench 10 for hanging collection harnesses and tools.

[0061] In one embodiment, the workbench 10 includes an installation cabin, which is enclosed by a front panel 12, a rear side panel 13, a left side panel 14 and a right side panel 15. The balancing module 30 and the charge and discharge management module 50 are installed in the installation cabin and are located in the area enclosed by the front panel 12, the rear side panel 13, the left side panel 14 and the right side panel 15.

[0062] In one embodiment, in order to facilitate heat dissipation of the discharge load module 51, heat dissipation holes are provided on the rear side panel 13, the left side panel 14 and the right side panel 15. A cooling fan 16 is provided on the heat dissipation holes, and the heat generated by the discharge load module 51 is dissipated through the cooling fan 16.

[0063] In a preferred embodiment, the rear side panel 13 is provided with two sets of hanging posts, and the airtightness detection module 40 is provided with two sets of waist holes 41. A metal electrode sheet is provided between the two hanging posts, and a power receiving electrode 42 is provided between the two sets of waist holes 41 of the airtightness detection module 40. The two sets of waist holes 41 on the airtightness detection module 40 are hung on the two sets of hanging posts, and the power receiving electrode 42 is electrically conductive with the metal electrode sheet. This structural design allows the airtightness detection module 40 to be automatically charged after each use when it is placed on the workstation. The airtightness detection module 40 has an internal circuit control device that can set functions such as inflation pressure, pressure holding time, and automatic charging stop control.

[0064] In one embodiment, the tool storage box 60 is arranged at a lower position of the installation cabin. The tool storage box 60 is arranged on the workbench 10 in a pull-out manner. The tool storage layer is arranged as a pull-out drawer mainly for storing special adapter connector harnesses, insulation instruments, air tightness detection tooling connectors and other accessories used for power battery maintenance.

[0065] In one embodiment, the workbench 10 is provided with a signal light 17 and a display 18 for displaying the status of the equipment when it is automatically running during the maintenance process, including red, green and yellow sound and light prompts, so that the operating status of the equipment can be observed from a distance during the battery maintenance process.

[0066] In one embodiment, an operating table 19 is provided on the upper surface of the workbench 10 .

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0068] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A new energy vehicle power battery maintenance workstation, characterized by: include A workbench (10) is arranged on a mobile platform (20); A balancing module (30) is arranged on the workbench (10) and performs balancing maintenance on the power battery; An airtightness detection module (40) is arranged on the workbench (10) and performs airtightness detection on the power battery; A charge and discharge management module (50) is arranged on the workbench (10) and is used to detect the charge and discharge performance of the power battery; A tool storage box (60) is arranged on the workbench (10).

2. A new energy vehicle power battery maintenance workstation according to claim 1, characterized in that: The balancing module (30) includes multiple groups of balancing modules (31), a low-voltage control module (35), a programming power supply module (32), an energy storage module (33), and an inverter power supply module (34).

3. A new energy vehicle power battery maintenance workstation according to claim 2, characterized in that: The charge and discharge management module (50) includes a discharge load module (51), a discharge control board, a current detection sensor, a DC charging socket (54), a DC charging gun module (55), and a charge and discharge connection cable (56).

4. A new energy vehicle power battery maintenance workstation according to claim 1, characterized in that: The workbench (10) is also provided with a maintenance diagnosis module, which includes a label printer (61), an industrial control host (62), a communication conversion board, a wireless communication device, a wireless scanner (63), a wireless keyboard and a mouse.

5. A new energy vehicle power battery maintenance workstation according to claim 4, characterized in that: Hanging racks (11) are provided on both sides of the workbench (10) for hanging collection harnesses and tools.

6. A new energy vehicle power battery maintenance workstation according to claim 3, characterized in that: The workbench (10) includes an installation cabin, which is enclosed by a front panel (12), a rear side panel (13), a left side panel (14), and a right side panel (15). The balancing module (30) and the charge and discharge management module (50) are installed in the installation cabin and are located in an area enclosed by the front panel (12), the rear side panel (13), the left side panel (14), and the right side panel (15).

7. A new energy vehicle power battery maintenance workstation according to claim 6, characterized in that: The rear side plate (13), the left side plate (14) and the right side plate (15) are all provided with heat dissipation holes, and a heat dissipation fan (16) is provided on the heat dissipation holes. Heat generated by the discharge load module (51) is dissipated through the heat dissipation fan (16).

8. A new energy vehicle power battery maintenance workstation according to claim 7, characterized in that: The rear side plate (13) is provided with two groups of hanging columns, the airtightness detection module (40) is provided with two groups of waist holes (41), a metal electrode sheet is provided between the two hanging columns, and a power receiving electrode (42) is provided correspondingly between the two groups of waist holes (41) of the airtightness detection module (40), the two groups of waist holes (41) on the airtightness detection module (40) are hung on the two groups of hanging columns, and the power receiving electrode (42) is electrically connected to the metal electrode sheet.

9. A new energy vehicle power battery maintenance workstation according to claim 6, characterized in that: The tool storage box (60) is arranged at a lower position of the installation cabin, and the tool storage box (60) is arranged on the workbench (10) in a drawer-type manner.

10. A new energy vehicle power battery maintenance workstation according to claim 1, characterized in that: A signal light (17) and a display (18) are provided on the workbench (10), and an operating table (19) is provided on the upper surface of the workbench (10).

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