Battery testing apparatus and testing system

Abstract

A battery testing apparatus (10) and a testing system. The battery testing apparatus (10) comprises: a cabinet body (1), an internal region of the cabinet body (1) comprising a first region and a second region; a testing assembly (2) disposed within the first region; and a high and low voltage switching assembly (3) disposed within the second region. The high and low voltage switching assembly (3) is electrically connected to the testing assembly (2) and provides a plurality of wiring terminals used for electrically connecting to a battery (20), the plurality of wiring terminals including at least one of a low-voltage wiring terminal (311) and a high-voltage wiring terminal (312); the testing assembly (2) is configured to carry out performance testing on the battery (20) via the high and low voltage switching assembly (3).

Description

Battery testing equipment and testing system Technical Field

[0001] The present application relates to the technical field of battery testing, and in particular to a battery testing device and a testing system. Background Art

[0002] Battery packs need to undergo rigorous testing before leaving the factory, among which end-of-line testing is an important part of the production process to test whether the various performance indicators of the battery pack are normal.

[0003] Currently, offline testing is generally performed by deploying a complete set of test systems. However, the structure of the test system is relatively complex and there is a problem of poor test accuracy.

[0004] Summary of the Invention

[0005] The purpose of this application is to improve the accuracy of battery testing.

[0006] According to a first aspect of the present application, a battery testing device is provided, comprising:

[0007] A cabinet body, wherein the interior area of ​​the cabinet body includes a first area and a second area;

[0008] A test assembly located within the first area; and

[0009] A high-low voltage adapter assembly is provided in the second area, the high-low voltage adapter assembly is electrically connected to the test assembly and provides a plurality of terminals for electrically connecting to the battery, the plurality of terminals including at least one of a low voltage terminal and a high voltage terminal.

[0010] The test component is configured to perform performance testing on the battery via a high-low voltage adapter component.

[0011] This embodiment integrates the test assembly and the high-low voltage adapter assembly in the same cabinet, which can reduce the structural difficulty of the battery testing system, facilitate layout, and greatly shorten the length of the wiring harness between the test assembly and the high-low voltage adapter assembly, which can improve the anti-interference ability of the battery testing device, thereby improving the accuracy of the battery performance test results and reducing the testing cost. Moreover, the integrated battery testing device can test the battery individually, which makes it easy to quickly expand the test station. In addition, when the high-low voltage adapter assembly is large in size, by setting a single test assembly, there is enough space in the cabinet to set the high-low voltage adapter assembly, which provides the possibility of integrating the high-low voltage adapter assembly in the cabinet, and can also reduce the overall volume of the battery testing device, facilitating flexible layout.

[0012] In some embodiments, the battery testing device further includes a test interface provided on a wall of the cabinet for electrically connecting to the battery, and the test interface is electrically connected to at least some of the plurality of connection terminals.

[0013] This embodiment provides a test interface on the wall of the cabinet, so that when testing the battery, the test device can be quickly electrically connected to the battery through the second wiring harness, which is convenient for assembly and disassembly. Moreover, the leads of multiple terminal blocks in the high and low voltage adapter assembly can also be connected to the test interface in an orderly manner, which is convenient for detection or maintenance.

[0014] In some embodiments, the battery testing device further includes a connection detection component, which is disposed near the test interface and configured to detect a connection status between the test interface and the external wiring harness.

[0015] This embodiment, by providing a connection detection component, can detect whether the second wiring harness is properly connected to the battery before testing. If so, testing is allowed. After the test is completed, it can detect whether the second wiring harness is disconnected from the battery. If so, the battery can be removed or the next battery can be tested. This ensures the validity of the battery test results and determines when to remove the tested battery after the test is completed.

[0016] In some embodiments, a partition is provided in the cabinet, and the partition is used to separate the inner area of ​​the cabinet into a first area and a second area.

[0017] This embodiment provides a partition to separate the internal area of ​​the cabinet into a first area and a second area, thereby isolating the test assembly and the high-low voltage adapter assembly to prevent mutual interference between the test assembly and the high-low voltage adapter assembly.

[0018] In some embodiments, the high-low voltage adapter assembly includes a basic adapter component and an extended adapter component. Both the basic adapter component and the extended adapter component have connection terminals, and the extended adapter component is detachably provided.

[0019] This embodiment splits the high- and low-voltage adapter assembly into two parts, which can reduce the volume of a single adapter component, facilitate layout within the cabinet, and reduce the overall size. Moreover, when most battery tests do not require the use of an extended adapter component, only the basic adapter component can be used to meet the testing requirements of most types of batteries. The extended adapter component can be optionally set. When the extended adapter component is removed, the overall weight of the battery testing device can be reduced and the utilization rate of the internal space of the cabinet can be reasonable. When the basic adapter component and the extended adapter component are used at the same time, the extended adapter component can be quickly installed, and the number of adapter groups can be quickly expanded, thereby meeting the universal testing requirements of various types of batteries.

[0020] In some embodiments, the cabinet has an adjacent first wall and a second wall, the basic adapter component includes a first panel, the first panel is arranged close to the first wall, and some of the multiple terminal blocks are arranged on the surface with the largest area facing the first wall, and the extended adapter component includes a second panel, the first panel is arranged close to the second wall, and the remaining terminal blocks of the multiple terminal blocks are arranged on the surface with the largest area facing the second wall.

[0021] This embodiment facilitates inspection or maintenance of the connection terminals on the first panel through the first wall, and also facilitates inspection or maintenance of the connection terminals on the second panel through the second wall, thereby making it convenient to inspect or maintain all connection terminals.

[0022] In some embodiments, the test component includes a communication component, the communication component includes a first communication component, the multiple connection terminals include at least one pair of first terminals for realizing first communication with the battery, and at least one pair of output ends of the first communication component corresponds to the at least one pair of first terminals and can be electrically connected in a switchable manner.

[0023] This embodiment can perform a communication function test on the battery through the first communication component to test whether the communication function of the battery is normal.

[0024] In some embodiments, the communication component further comprises a second communication component, at least one pair of output terminals of the second communication component being connected in a one-to-one correspondence with a corresponding pair of output terminals of the first communication component for monitoring the first communication.

[0025] This embodiment can perform CAN communication function testing on the battery through the first communication component and monitor whether the instruction receiving and sending function of the first communication component is normal through the second communication component, thereby eliminating erroneous testing caused by failure of the first communication component, thereby improving the accuracy of battery testing.

[0026] In some embodiments, the test assembly includes an electrical characteristics tester, and a pair of lead terminals of the electrical characteristics tester can be selectively electrically connected to a pair of first terminals of the at least one pair of first terminals.

[0027] This embodiment can further implement the measurement of the internal electrical signals of the battery through the electrical characteristics tester on the basis of implementing the CAN communication test on the battery, and the two do not interfere with each other.

[0028] In some embodiments, the test component includes an electrical characteristics tester, the plurality of connection terminals include at least one pair of second terminals for testing the electrical characteristics parameters of the battery, and a pair of lead terminals of the electrical characteristics tester can be selectively electrically connected to a pair of second terminals in the at least one pair of second terminals.

[0029] This embodiment enables the positive test lead and the negative test lead of the electrical characteristics tester to be selectively connected to any pair of second terminals to measure the electrical characteristic parameters inside the battery.

[0030] In some embodiments, the test component includes a signal generator and an electrical characteristics tester, and the multiple wiring terminals include at least one pair of fourth terminals for power supply and at least one pair of fifth terminals for outputting waveforms; each pair of fourth terminals can be switchably electrically connected to a low-voltage power supply, and each pair of fifth terminals can be switchably electrically connected to the signal generator, and the electrical characteristics tester can be switchably connected to a power supply circuit in which the low-voltage power supply supplies power to the battery through the fourth terminals, so as to measure the current in the power supply circuit.

[0031] This embodiment can selectively power the battery through a second power supply or a third power supply with different voltages, measure the current of the power supply circuit of the power module through an electrical characteristics tester, and also implement collision signal testing through a signal generator.

[0032] In some embodiments, the test assembly includes an electrical characteristics tester and a voltage withstand tester;

[0033] The multiple connection terminals include at least one pair of sixth terminals for testing high-voltage signals inside the battery, at least one pair of seventh terminals for testing low-voltage signals inside the battery, and at least one pair of eighth terminals for testing the resistance of the battery; the at least one pair of sixth terminals are both connected to the same pair of voltage transfer terminals, the voltage transfer terminals are electrically connected to the electrical characteristics tester through a voltage divider circuit, the at least one pair of seventh terminals are electrically connected to the electrical characteristics tester, and the at least one pair of sixth terminals and at least one pair of eighth terminals are electrically connected to the voltage withstand tester.

[0034] In this embodiment, the insulation performance of the battery can be tested by a withstand voltage tester. The withstand voltage tester itself can realize high voltage power supply, and the electrical characteristics tester can selectively realize high voltage or low voltage measurement.

[0035] In some embodiments, the test component includes an electrical characteristics tester, the battery testing device also includes a power supply component, the multiple wiring terminals include at least one third terminal for testing the battery charging signal, the electrical characteristics tester can be selectively electrically connected to a pair of third terminals, a first resistor is provided between each pair of third terminals and the electrical characteristics tester, and the third terminals can be selectively connected to the positive pole of the power supply component or the negative pole of the power supply component through the first resistor.

[0036] This embodiment enables the positive test lead and the negative test lead of the electrical characteristics tester to be selectively connected to any pair of third terminals to measure the charging signal of the battery.

[0037] In some embodiments, the test assembly includes: a low-voltage test component and a high-voltage test component, and the low-voltage test component and the high-voltage test component are arranged at a certain distance from each other in the first area.

[0038] This embodiment spatially separates the low-voltage test component A and the high-voltage test component B, which can reduce interference between high and low voltage signals and the interference received during the test process, thereby improving the accuracy of the battery performance test results.

[0039] In some embodiments, the battery testing device further includes an electrical control board for powering and controlling the test assembly and the battery. The electrical control board includes a substrate and a plurality of relays. The substrate is disposed on the inner wall of the cabinet, and the plurality of relays are laid flat on the substrate.

[0040] This embodiment places the electrical control panel on the inner wall of the cabinet, which can leave more space for the layout of the test components and the high-low voltage adapter components. In traditional test cabinets, the electrical control panel is placed in a separate box, and the electrical control panel is placed directly in the cabinet. The structure of the present application can make the overall internal structure layout of the battery testing device more compact, thereby reducing the volume of the battery testing device. In addition, if the wall used to install the electrical control panel is openable, there is no need to remove the electrical control panel. The electrical control panel can be opened with the wall to reach the external area of ​​the cabinet, which not only facilitates the inspection and maintenance of the electrical control panel, but also exposes the rear side of the test components and the high-low voltage adapter components, which is also convenient for inspection and maintenance.

[0041] In some embodiments, at least one wall of the cabinet has a door-like structure.

[0042] This embodiment provides a door-like structure for the wall of the cabinet, which can be easily opened to conveniently maintain the internal structure from different angles without removing the internal structure, thereby improving the convenience and efficiency of maintenance.

[0043] According to a second aspect of the present application, a battery testing system is provided, comprising:

[0044] The battery testing device of the above embodiment is configured to perform performance testing on a battery located at a testing station; and

[0045] The mounting assembly is configured to mount the battery testing device above the testing station.

[0046] The battery testing system of this embodiment can conveniently perform performance tests on batteries. Since the battery testing device is an integrated structure, it can independently perform performance tests. When arranging the battery testing system, there is no need to lay long external wiring harnesses, which can improve the anti-interference ability of battery testing, thereby improving the accuracy of test results and reducing the cost of the test system. Moreover, this structure can flexibly set the battery testing device corresponding to the test station, making it easy to quickly expand the test station.

[0047] Furthermore, placing the battery testing device above the test station can shorten the length of the second wiring harness connecting the test interface to the battery, reduce interference during testing, and improve the accuracy of the battery test results. In particular, when the test interface is located on the bottom wall, the length of the second wiring harness can be minimized regardless of whether the product interface is located on the top or side of the battery. In addition, the battery testing device only needs to occupy the space at the top of the battery and does not require additional space in the horizontal plane, facilitating the rapid expansion of the test station. Furthermore, when transferring the battery, it can pass directly under the battery testing device without the need for avoiding space, and the battery testing device is at a certain height from the bottom surface, making it convenient for the operator to observe the test results and also facilitating manual operation or maintenance.

[0048] In some embodiments, the battery testing device also includes a test interface disposed on a wall of the cabinet for electrically connecting to the battery, the test interface being electrically connected to at least some of the plurality of wiring terminals, and the mounting assembly being configured to install the battery testing device so that the test interface is located in the central area of ​​the battery's projection in the horizontal plane.

[0049] This embodiment can eliminate the need for a longer second wiring harness when connecting the test interface to the product interface of the battery through the second wiring harness, regardless of where the product interface is located on the battery. This can reduce interference to the second wiring harness and also facilitate the connection of the test interface to the product interface through the second wiring harness.

[0050] In some embodiments, two battery testing devices are included, and the installation assembly includes: a horizontal bracket, two vertical brackets and two suspension components, the two vertical brackets are respectively arranged at the two ends of the horizontal bracket along the first direction, the two suspension components are respectively arranged at the two ends of the horizontal bracket along the second direction and are located below the horizontal bracket, and the two battery testing devices are respectively installed at the bottom ends of the two suspension components; wherein the second direction is perpendicular to the first direction.

[0051] This embodiment can install two battery testing devices through one mounting assembly, making the structure of the mounting assembly more compact and saving space. Moreover, this mounting assembly can stably suspend the two battery testing devices, and the vertical bracket will not affect the setting of the battery testing device while being reliably supported on the bottom surface or other platform.

[0052] In some embodiments, for the same installation assembly, the front walls of the cabinets of the two battery testing devices are arranged opposite to each other along the second direction, and the front walls have observation windows for observing the test results of the test assembly.

[0053] This embodiment allows an operator to conveniently observe the test results of the battery test devices on both sides or perform operations when in a channel between two test platforms corresponding to the same installation component, thereby improving test efficiency.

[0054] In some embodiments, the battery testing device further includes a test interface provided on a wall surface of the cabinet for electrically connecting to the battery, the test interface being electrically connected to at least some of the plurality of connection terminals;

[0055] For the same mounting assembly, there is a vertical center plane between the two test stations along the second direction, and the mounting positions and test interfaces of the two battery testing devices are mirror-imaged relative to the vertical center plane.

[0056] This embodiment enables the test interface to be located in the central area of ​​the battery's projection in the horizontal plane. When the test interface and the product interface of the battery are connected through the second wiring harness, no matter where the product interface is located on the battery, there is no need to use a longer second wiring harness, which can reduce interference with the second wiring harness and also allows the test interface to be conveniently connected to the product interface through the second wiring harness.

[0057] In some embodiments, the mounting assembly further comprises a connecting member, the connecting member comprising a horizontal portion and a vertical portion, wherein a first end of the horizontal portion is connected to a first end of the vertical portion;

[0058] The second end of the horizontal portion is connected to the cabinet, and the second end of the vertical portion is connected to the bottom end of the hanging component; and / or the second end of the horizontal portion is connected to the horizontal bracket, and the second end of the vertical portion is connected to the top end of the hanging component.

[0059] This embodiment can detachably connect the battery testing device to the mounting assembly by providing a connecting piece, and can achieve reliable installation even for a mounting assembly formed by overlapping rod-shaped structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without creative work.

[0061] FIG1 is an external view of some embodiments of the battery testing device of the present application.

[0062] FIG2 is a schematic diagram of the internal structure of some embodiments of the battery testing device of the present application.

[0063] FIG3 is a schematic diagram of the electrical connection between the test assembly and the high-low voltage adapter assembly in the battery test device.

[0064] FIG4 is a schematic diagram of the electrical connection between the battery testing device and the battery.

[0065] FIG5 is a front view of some embodiments of the battery testing device of the present application.

[0066] FIG6 is a rear view of some embodiments of the battery testing device of the present application.

[0067] FIG. 7 is a layout diagram of some embodiments of an electrical control board.

[0068] FIG8 is a schematic diagram of circuit connections of a first power source for supplying power to the battery testing device.

[0069] FIG9 is a circuit connection diagram of the communication component.

[0070] FIG10 is a schematic diagram showing the circuit connection between the positive and negative test leads of a multimeter and a portion of the wiring terminals in a high- and low-voltage adapter assembly.

[0071] FIG11 is a schematic diagram showing the circuit connection between the positive and negative test leads of a multimeter and another part of the wiring terminals in the high-low voltage adapter assembly.

[0072] FIG12 is a schematic diagram showing the circuit connections of the second power supply and the third power supply for supplying power to the battery, as well as a multimeter and a function generator.

[0073] FIG13 is a circuit connection diagram of a voltage withstand tester.

[0074] FIG14 is a schematic structural diagram of some embodiments of the battery testing system of the present application.

[0075] FIG15 is a schematic diagram showing the structure of two battery test devices suspended and mounted on a mounting assembly.

[0076] FIG16 is a schematic diagram of a suspension installation of some embodiments of the battery testing device of the present application.

[0077] FIG17 is an enlarged view of point A in FIG16 .

[0078] In the drawings, the drawings are not drawn to scale.

[0079] Marking instructions: 10. Battery test device; 20. Battery; 201. Product interface; 30. Second wiring harness; 40. Test platform; 40', Test station; 50. Mounting assembly; 51. Horizontal bracket; 511. First rod; 512. Second rod; 513. Third rod; 52. Vertical bracket; 521. Fourth rod; 522. Fifth rod; 53. Suspension component; 531. Suspension rod; 54. Connector; 541. Horizontal part; 542. Vertical part; 543. Reinforcement part; 55. Reinforcement rod; 1. Cabinet; 11. Bottom wall; 12. Top wall; 13. Front wall; 14. Rear wall; 15. Left side wall; 16. Right side wall; 17. First plate; 18. Second plate; 19. Third plate; 10', Partition; 101. First beam; 102. Second beam; 103. Hinge; 104. Lock accessory; 2. Test assembly; 2A. Low-voltage test component; 21. Signal generator; 22. Electrical characteristics tester; 23. Communication component; 231. First communication component; 232. Second communication component; 2B. High-voltage test component; 24. Withstand voltage tester; 3. High- and low-voltage adapter assembly; 31. Basic adapter component; 32. Extended adapter component; 33. Wire duct; 311. Low-voltage terminal block; 312. High-voltage terminal block; 4. Electrical control board; 41. Power supply component; 411. First power supply; 412. Second power supply; 413. Third power supply; 42. PLC device; 43. Relay; 44. Baseboard; 5. Test interface; 6. Connection detection component; 6', mounting bracket; 7. First wiring harness; x, first direction; y, second direction; z, third direction. DETAILED DESCRIPTION

[0080] The following detailed description of the embodiments of the present application is provided in conjunction with the accompanying drawings and examples. The following detailed description of the embodiments and the accompanying drawings are used to illustrate the principles of the present application, but are not intended to limit the scope of the present application, i.e., the present application is not limited to the described embodiments.

[0081] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0082] This application uses descriptions of directions or positional relationships such as "up", "down", "top", "bottom", "front", "back", "inside" and "outside" to facilitate the description of this application, and does not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as limiting the scope of protection of this application.

[0083] Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Perpendicular" does not strictly refer to perpendicularity, but rather to the tolerances allowed. "Parallel" does not strictly refer to parallelism, but rather to the tolerances allowed. The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application.

[0084] It should also be noted that, in the description of this application, unless otherwise specified or limited, the terms "installed," "connected," and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0085] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least some embodiments of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0086] The current test system for battery end-of-line testing (full name: "End of life", abbreviated as EOL) includes: a test cabinet and a high-low voltage adapter box. A high-low voltage adapter box is installed above each test station. The test cabinet is set next to the test station. The test interface of the test cabinet is connected to the high-low voltage adapter box through the wiring harness in the wire trough. During testing, the battery and the high-low voltage adapter box are connected through the matching tooling wiring harness.

[0087] When this type of test system is equipped with multiple test stations, the length of the wiring harness in the cable trough is greater than 20 meters, making the layout of the wiring harness more difficult. In addition, during the testing phase, it was found that the accuracy of the battery performance test was poor. Through research, it was found that the main reason affecting the test accuracy is that the longer wiring harness in the cable trough leads to weaker anti-interference ability.

[0088] Therefore, in order to improve the accuracy of battery performance testing, it is necessary to shorten the length of the wiring harness. Based on this goal, this application intends to integrate the test cabinet with the high-low voltage adapter box. However, the test cabinets currently on the market generally have dual channels, which can be used to test batteries at two test stations. The test cabinet has many instruments and meters, which takes up a lot of space. In addition, the high-low voltage adapter box is also large in size, which brings great difficulties to the integrated design. Therefore, this application also needs to improve the internal structure of the test cabinet.

[0089] Based on the above ideas, as shown in Figure 1, the present application provides a battery testing device, including: a cabinet 1, the internal area of ​​the cabinet 1 includes a first area and a second area; a test component 2, arranged in the first area; and a high-low voltage adapter component 3, arranged in the second area, the high-low voltage adapter component 3 is electrically connected to the test component 2 and provides a plurality of terminals for electrically connecting to the battery 20, the plurality of terminals including at least one of a low-voltage terminal 311 and a high-voltage terminal 312; wherein the test component 2 is configured to perform performance testing on the battery 20 via the high-low voltage adapter component 3.

[0090] The cabinet 1 may be a rectangular parallelepiped structure having multiple walls, including a bottom wall 11, a top wall 12, a front wall 13, a rear wall 14, a left side wall 15, and a right side wall 16. To enhance the overall strength of the cabinet 1, the cabinet 1 includes a frame structure, to which the multiple walls may be mounted, for example, using fasteners to secure the frame structure, or may be retractably mounted via hinges 103 to facilitate access to the interior of the cabinet 1 for maintenance. The hinges 103 may be hinges, for example. Alternatively, the multiple walls of the cabinet 1 may be directly connected.

[0091] As shown in FIG1 , the bottom wall 11 and the top wall 12 are fixed to the frame structure by fasteners, and the front wall 13 , the rear wall 14 , the left side wall 15 and the right side wall 16 are all installed on the frame structure in an openable and closable manner by hinges 103 .

[0092] As shown in FIG2 , the frame structure includes a plurality of first beams 101 and a plurality of second beams 102, wherein every four first beams 101 form a rectangular frame in a plane formed by a first direction x and a second direction y, the two rectangular frames are opposite each other and spaced apart along a third direction z, and the four corners of the two rectangular frames are connected by second beams 102. A partition structure may be provided in the cabinet 1 to divide the internal area of ​​the cabinet 1 into a first area and a second area, the partition structure including two first beams 101 and two second beams 102, the first beam 101 of the partition structure being connected between two longer first beams 101 in the same rectangular frame and being located in the middle area of ​​the first beams 101, and the two first beams 101 of the partition structure being connected in the two rectangular frames respectively; the two ends of the second beam 102 in the partition structure being connected between the two longer first beams 101 in two adjacent rectangular frames and being located in the middle area of ​​the first beam 101, and the two second beams 102 of the partition structure being connected at the two ends of the rectangular frame along the second direction y respectively. This structure can not only electrically connect the high and low voltage adapter assembly 3 to the test assembly 2 in different areas, but also increase the overall strength of the frame structure.

[0093] The first and second areas can be arranged side by side along the first direction x, such that the test assembly 2 and the high-low voltage adapter assembly 3 are arranged side by side along the first direction x. As a result, the various instruments in the test assembly 2 occupy one area, and the high-low voltage adapter assembly 3 occupies another area. This makes the internal layout of the battery testing device 10 more compact, thereby reducing the overall volume. For example, the first direction x can be the length of the cabinet 1. Alternatively, the first direction x can also be the width or height of the cabinet 1.

[0094] The test component 2 is used to perform performance tests on the battery 20, where the battery 20 refers to the battery pack. For example, insulation withstand voltage tests, battery management system (full name: "Battery Management System", abbreviated as BMS) communication and logic tests, battery hardware function tests, battery total voltage detection and comparison and other performance test verifications can be performed. For example, a single set of test components 2 can be set, or multiple sets can be set as needed. When a single set of test components 2 is set, a single-channel test can be performed on the battery 20. "Single-channel performance test" means that the test component 2 can only test one battery 20 at the same time. According to the test requirements, a single set of test components 2 may include one or more instruments, etc., and multiple instruments can be concentrated in the first area of ​​the cabinet 1.

[0095] The high-low voltage adapter assembly 3 is electrically connected to the test assembly 2. As shown in Figure 3, the high-low voltage adapter assembly 3 and the test assembly 2 can be connected through a first wiring harness 7. The first wiring harness 7 can isolate the high and low voltage wiring through different wiring troughs to reduce interference between the high and low voltage wiring. The multiple instruments in the test assembly 2 are concentrated in the first area, which can make the wiring of each wire in the first wiring harness 7 more concentrated. Connecting the high and low voltage adapter assembly 3 and the test assembly 2 through the first wiring harness 7 can simplify the electrical connection structure and further reduce the interference of the signal during transmission, thereby improving the accuracy of the performance test results of the battery 20. Optionally, the high and low voltage adapter assembly 3 and the test assembly 2 can also be electrically connected through an adapter connector.

[0096] The high-low voltage adapter assembly 3 provides multiple terminals for electrical connection to the battery 20, including at least one of a low-voltage terminal 311 and a high-voltage terminal 312. The "high voltage" mentioned in this embodiment and below refers to the voltage of the main circuit of the battery 20, including the voltage in the battery 20 that powers the drive motor in the electrical device and the voltage used to charge the battery 20. The high voltage is generally in the range of [100V, 1000V]. The "low voltage" refers to the voltage provided by the battery 20 for low-voltage devices or signal communication, etc., and the low voltage is generally less than 36V.

[0097] The high- and low-voltage adapter assembly 3 and the test assembly 2 are integrated into the cabinet 1. Compared to the traditional high- and low-voltage adapter assembly 3 and the test assembly 2, there is no need to set up a separate cabinet for the high- and low-voltage adapter assembly 3 and the test assembly 2. The high- and low-voltage adapter assembly 3 is used to connect the leads of all instruments in the test assembly 2 and is electrically connected to the battery 20, that is, it is electrically connected to the product interface of the battery 20. As shown in Figure 2, the high- and low-voltage adapter assembly 3 has a wiring panel, on which a plurality of low-voltage terminals 311 and high-voltage terminals 312 are provided. For example, the low-voltage terminals 311 can be distributed in the upper area of ​​the wiring panel, and the high-voltage terminals 312 can be distributed in the lower area of ​​the wiring panel.

[0098] This embodiment integrates the test component 2 and the high-low voltage adapter component 3 in the same cabinet 1, which can reduce the structural difficulty of the battery testing system, facilitate layout, and greatly shorten the length of the wiring harness between the test component 2 and the high-low voltage adapter component 3, which can improve the anti-interference ability of the battery testing device 10, thereby improving the accuracy of the battery 20 performance test results and reducing the testing cost. Moreover, the integrated battery testing device 10 can test the battery 20 separately, which is easy to achieve rapid expansion of the test station. In addition, in the case where the high-low voltage adapter component 3 is large in size, by setting a single test component 2, there is enough space in the cabinet 1 to set the high-low voltage adapter component 3, which provides the possibility of integrating the high-low voltage adapter component 3 in the cabinet 1, and can also reduce the overall volume of the battery testing device 10, facilitating flexible layout.

[0099] In some embodiments, as shown in FIG2 , the battery testing device further includes a test interface 5 provided on a wall of the cabinet 1 for electrically connecting to the battery 20 , and the test interface 5 is electrically connected to at least some of the plurality of connection terminals.

[0100] Among them, the test interface 5 is provided on the cabinet 1, and the setting position can take into account the convenience of the internal leads and external connections of the cabinet 1. As shown in Figures 2 and 4, the test interface 5 is electrically connected to the first end of the second wiring harness 30, and the second end of the second wiring harness 30 is used to electrically connect to the product interface 201 of the battery 20. The second wiring harness 30 is a tooling harness for testing the battery 20. The test interface 5 can be an aviation connector, using a quick-change interface, which makes it easy to plug and unplug the second wiring harness 30 during testing. When testing is required, it is necessary to select a second wiring harness 30 with a suitable connector according to the functional definition of the battery 20. When the product type changes, the second wiring harness 30 can be unplugged from the test interface 5 and replaced with a matching second wiring harness 30.

[0101] Optionally, the cabinet 1 has a bottom wall 11, and the test interface 5 is disposed on the bottom wall 11. The positions of the test interface 5 and the product interface 201 of the battery 20 in Figure 4 are schematic diagrams only. During testing, the test interface 5 and the product interface 201 need to be connected via a second wiring harness 30. When the battery testing device 10 is located above the battery 20 for testing, regardless of whether the product interface 201 is located on the top or side of the battery 20, the length of the second wiring harness 30 can be reduced, thereby reducing interference with the second wiring harness 30 between the test interface 5 and the battery 20. This reduces interference at each link requiring wiring harness connection, thereby effectively improving the accuracy of the battery 20 performance test results.

[0102] Optionally, the high-low voltage adapter assembly 3 is provided with a wiring terminal, which is electrically connected to the test interface 5, and the test interface 5 is provided in an area on the cabinet 1 near the wiring terminal. The high-low voltage adapter assembly 3 can be set as a panel structure, and a plurality of wiring terminals are provided on the panel structure. The plurality of wiring terminals and the test interface 5 can be connected respectively by a plurality of wires, and the plurality of instruments in the test assembly 2 can be connected to the panel structure on the back side of the wiring terminal through the first wiring harness 7. For example, the wiring terminal can be set toward the front wall 13, and the test interface 5 can be provided at a position on the wall of the cabinet 1 that is convenient for connection with the wiring terminal. The test interface 5 can be provided on the side of the high-low voltage adapter assembly 3 away from the test assembly 2 to prevent the connection harness between the wiring terminal and the test interface 5 from affecting the working reliability of the instruments in the test assembly 2.

[0103] For example, the test interface 5 is located on the bottom wall 11 near the front wall 13 and on the side away from the test assembly 2. This shortens the length of the second wiring harness 30 and the length of the connecting harness between the wiring terminals and the test interface 5, thereby improving the operating reliability of the instruments in the test assembly 2. This approach facilitates wiring between the wiring terminals and the test interface 5, shortens the length of the connecting harness, and reduces interference with the connecting harness during testing, thereby improving the accuracy of the battery 20 performance test results.

[0104] This embodiment provides a test interface 5 on the wall of the cabinet 1. When testing the battery 20, the test device can be quickly electrically connected to the battery 20 through the second wiring harness 30, which is convenient for assembly and disassembly. Moreover, the leads of multiple terminal blocks in the high and low voltage adapter assembly 3 can also be connected to the test interface 5 in an orderly manner, which is convenient for detection or maintenance.

[0105] In some embodiments, as shown in FIG. 1 and FIG. 2 , the battery testing device 10 further includes a connection detection component 6 , which is disposed near the test interface 5 and configured to detect a connection status between the test interface 5 and an external wiring harness.

[0106] The connection detection component 6 is mounted on the cabinet 1 and is configured to detect the connection status between the second wiring harness 30 and the battery 20. The connection detection component 6 can be a sensor, for example, utilizing infrared, laser, or other means to detect whether the second wiring harness 30 has been disconnected from the battery 20 and replaced. The connection detection component 6 is disposed near the test interface 5 and can be mounted on the cabinet 1 via a mounting bracket 6'. The mounting bracket 6' can be bent from a sheet metal structure to form a U-shaped structure. One side wall of the U-shaped structure is fixed to the cabinet 1, and the connection detection component 6 is mounted on the other side wall. This allows the installation position of the connection detection component 6 to be a certain distance away from the cabinet 1, so as to more clearly detect the connection position between the second end of the second wiring harness 30 and the battery 20.

[0107] For example, the mounting bracket 6 ′ is detachably mounted on the bottom area of ​​the front wall 13 and is disposed close to the test interface 5 in the first direction x. In FIG. 2 , the connection detection component 6 is located at the lower right corner of the front wall 13 .

[0108] This embodiment, by providing a connection detection component 6, can detect whether the second wiring harness 30 is properly connected to the battery 20 before testing. If so, testing is allowed. After the test is completed, it can detect whether the second wiring harness 30 is disconnected from the battery 20. If so, the battery 20 can be removed or the next battery 20 can be tested. In this way, the validity of the test results of the battery 20 can be guaranteed, and the timing of removing the tested battery 20 can be determined after the test is completed.

[0109] In some embodiments, as shown in FIG6 , a partition 10 ′ is provided in the cabinet 1 , and the partition 10 ′ is used to separate the inner area of ​​the cabinet 1 into a first area and a second area.

[0110] Partition 10' is arranged so that the test assembly 2 and the high-low voltage adapter assembly 3 are arranged side by side along a first direction x. The first direction x can be the length of the cabinet 1. This partitioning arrangement makes each area approximately square, making layout easier than with elongated areas. Optionally, the first direction x can also be the width or height of the cabinet 1. Optionally, a partition is not required between the test assembly 2 and the high-low voltage adapter assembly 3, so that they can be electrically connected via the first wiring harness 7. The high and low voltage wiring in the first wiring harness 7 can be separated by a wire trough.

[0111] In this embodiment, a partition 10' is provided to separate the inner area of ​​the cabinet 1 into a first area and a second area, thereby separating the test assembly 2 and the high-low voltage adapter assembly 3 to prevent mutual interference between the test assembly 2 and the high-low voltage adapter assembly 3.

[0112] In some embodiments, as shown in FIG6 , the high-low voltage adapter assembly 3 includes a basic adapter component 31 and an extended adapter component 32 . Both the basic adapter component 31 and the extended adapter component 32 have connection terminals, and the extended adapter component 32 is detachably provided.

[0113] The basic adapter component 31 must be installed in the cabinet 1, while the extended adapter component 32 can be optionally installed in the cabinet 1 based on testing requirements. If the basic adapter component 31 meets most battery 20 testing requirements, the extended adapter component 32 may not be installed in the cabinet 1 to reduce the overall weight of the battery testing device 10 and provide a more spacious interior space for easier installation and wiring. Alternatively, the extended adapter component 32 can be installed in the cabinet 1, but only the wiring terminals on the basic adapter component 31 are used during testing. If the basic adapter component 31 is insufficient to meet specific battery 20 testing requirements, the wiring terminals in the extended adapter component 32 can be used to supplement the requirements.

[0114] The extended adapter component 32 can be an extended interface card to achieve rapid expansion of the number of three groups of high and low voltage adapter components. The basic adapter component 31 and the extended adapter component 32 both include electrical wiring, relays and wiring terminals. The wiring terminals of the basic adapter component 31 and the extended adapter component 32 both include low voltage wiring terminals 311 and high voltage wiring terminals 312.

[0115] Optionally, the basic adapter component 31 and the extended adapter component 32 are arranged side by side along the second direction y, where the second direction y can be the width direction of the cabinet 1. For example, both the basic adapter component 31 and the extended adapter component 32 are panel structures. The thickness direction of the basic adapter component 31 is consistent with the second direction y, and the basic adapter component 31 is arranged close to the front wall 13, with the wiring terminals thereon facing the front wall 13. When the front wall 13 is opened or the front wall 13 is made of transparent material, the wiring status can be easily observed. The thickness direction of the extended adapter component 32 is consistent with the first direction x (the length direction of the cabinet 1), and the extended adapter component 32 is arranged behind the basic adapter component 31 and close to the side wall of the cabinet 1 away from the test assembly 2. The wiring terminals thereon face the side wall. When the side wall is opened or the side wall is made of transparent material, the wiring status can be easily observed.

[0116] In addition, when the test component 2 and the high-low voltage adapter component 3 are arranged side by side along the first direction x, the basic adapter component 31 and the extended adapter component 32 are arranged side by side along the second direction y to form an L-shaped layout. Since there is no obstruction between the two adapter components, each adapter component can be conveniently electrically connected to the test component 2.

[0117] Furthermore, when the test interface 5 is located in the corner area defined by the bottom wall 11, the front wall 13, and the side walls, it is convenient to connect the wiring terminals on the basic adapter component 31 and the extended adapter component 32 to the test interface 5. A wire trough 33 may also be provided in the high-low voltage adapter assembly 3 to guide the high and low voltage wiring, and the wire trough 33 may extend along the second direction y.

[0118] The expansion adapter component 32 is detachably mounted on the cabinet 1, for example, on the bottom wall 11, or the expansion adapter component 32 is detachably mounted on the basic adapter component 31. The expansion adapter component 32 can be in the form of an expansion interface card to facilitate plugging and unplugging and achieve quick disassembly and assembly.

[0119] This embodiment splits the high- and low-voltage adapter assembly 3 into two parts, which can reduce the volume of a single adapter component, facilitate layout within the cabinet 1, and reduce the overall size. Moreover, when the extended adapter component 32 is not required for testing most types of batteries 20, only the basic adapter component 31 can be used to meet the testing requirements of most types of batteries 20. The extended adapter component 32 is optional. When the extended adapter component 32 is removed, the overall weight of the battery testing device 10 can be reduced and the utilization rate of the internal space of the cabinet 1 can be reasonable. When the basic adapter component 31 and the extended adapter component 32 are used at the same time, the extended adapter component 32 can be quickly installed, and the number of adapter groups can be quickly expanded, thereby meeting the universal testing requirements of various types of batteries 20.

[0120] In some embodiments, the cabinet 1 has an adjacent first wall and a second wall, the basic adapter component 31 includes a first panel, the first panel is arranged close to the first wall, and some of the multiple wiring terminals are arranged on the surface with the largest area facing the first wall, and the extended adapter component 32 includes a second panel, the first panel is arranged close to the second wall, and the remaining wiring terminals of the multiple wiring terminals are arranged on the surface with the largest area facing the second wall.

[0121] For example, the first wall may be the front wall 13 of the cabinet 1 , and the second wall may be a side wall of the cabinet 1 .

[0122] This embodiment facilitates inspection or maintenance of the connection terminals on the first panel through the first wall, and also facilitates inspection or maintenance of the connection terminals on the second panel through the second wall, thereby making it convenient to inspect or maintain all connection terminals.

[0123] In some embodiments, as shown in FIG5 , the test assembly 2 includes: a low-voltage test component 2A and a high-voltage test component 2B, and the low-voltage test component 2A and the high-voltage test component 2B are arranged at a certain distance from each other in the first area.

[0124] The low-voltage test component 2A and the high-voltage test component 2B are arranged side by side along a third direction z, which is perpendicular to the first direction x. The third direction z can be the height direction of the cabinet 1. Since the height dimension of most instruments is lower than the length and width dimensions, and some instruments occupy a large amount of space in the horizontal plane, arranging the low-voltage test component 2A and the high-voltage test component 2B side by side along the height direction not only provides sufficient space to accommodate instruments that occupy a large space, but also allows each instrument to fully utilize the space in the height direction. This can make the layout of the cabinet 1 compact and reasonable, reducing space waste. Optionally, when the test assembly 2 and the high-low voltage adapter assembly 3 are arranged side by side along the first direction x, the low-voltage test component 2A and the high-voltage test component 2B can also be arranged side by side along the width direction of the cabinet 1. The low-voltage test component 2A is a test component for the first voltage range, and the high-voltage test component 2B is a test component for the second voltage range, where the first voltage range is generally lower than the second voltage range.

[0125] This embodiment spatially separates the low-voltage test component 2A and the high-voltage test component 2B, which can reduce interference between high and low voltage signals and interference during the test process, thereby improving the accuracy of the performance test results of the battery 20.

[0126] In some embodiments, as shown in Figure 5, low-voltage test component 2A includes a signal generator 21, an electrical characteristics tester 22, and a communication component 23. High-voltage test component 2B includes a withstand voltage tester 24. In the third direction z, withstand voltage tester 24 is located on the first layer, signal generator 21 and electrical characteristics tester 22 are located on the second layer and arranged side by side along the first direction x, and communication component 23 is located on the third layer. The first direction x is perpendicular to the third direction z. For example, signal generator 21 can be a function generator, electrical characteristics tester 22 can be a voltmeter, and communication component 23 can be a CAN component.

[0127] Among them, the signal generator 21 is a multi-waveform signal source, which is used to cooperate with the electrical characteristics tester 22 to test the hardware function of the battery 20, for example, to simulate the collision signal received by the battery 20 to perform a collision response test. For example, the function generator can output square waves, sine waves, etc.; the electrical characteristics tester 22 is used to test the voltage, which is used to detect and compare the total voltage of the battery 20; the communication component 23 is used to test the CAN communication function and logic detection of the battery 20, and can also cooperate with the electrical characteristics tester 22 to detect and compare the total battery voltage. The full name of CAN is controller area network; the voltage withstand tester 24 is used to perform insulation and voltage withstand tests on the battery 20, specifically, to test the insulation performance of the total positive pole of the battery 20 relative to the cabinet and the insulation performance of the total negative pole of the battery 20 relative to the cabinet. The voltage withstand tester 24 itself can output a high voltage to supply the battery 20 for testing. Considering the weight factor, the voltage tester 24 is about 40kg, and the total weight of other instruments is about 10kg. Therefore, the instruments can be arranged in layers from heavy to light. The voltage tester 24 is the heaviest and can be placed on the first layer. The signal generator 21 and the electrical characteristics tester 22 are similar in size and weight and can be placed side by side on the second layer. The communication component 23 is the lightest and smallest in size and can be placed on the third layer.

[0128] For example, if the first direction z is the length of the cabinet 1 and the third direction z is the height of the cabinet 1, the instruments can be arranged in layers along the height. The withstand voltage tester 24, being the heaviest, can be placed on the bottom layer. The signal generator 21 and the electrical characteristics tester 22, being of similar size and weight, can be placed side by side on the second layer. The communication component 23, being the lightest and smallest, can be placed on the top layer. Alternatively, the third direction z can be the width of the cabinet 1. Alternatively, the third direction z can be the length of the cabinet 1.

[0129] In this embodiment, the instruments in the test assembly 2 are arranged in layers along the third direction z in consideration of weight factors, so that the internal layout and center of gravity of the battery testing device 10 can be reasonable.

[0130] In some embodiments, a first board 17, a second board 18 and a third board 19 are arranged in the cabinet 1 in the area where the test component 2 is located along the third direction z, the voltage tester 24 is arranged on the first board 17, the signal generator 21 and the electrical characteristics tester 22 are arranged on the second board 18, and the communication component 23 is arranged on the third board 19.

[0131] As shown in Figures 2 and 5, the first plate 17, the second plate 18, and the third plate 19 are all rectangular, with the four corners of each plate being fixed to the two outer second beams 102 and the two second beams 102 located in the middle region along the first direction x. Each plate supports the instrument. To enhance the secure installation of the instrument, a locking element 104 can be provided on each plate to lock the instrument. The locking element 104 can be opened when the instrument needs to be removed. This structure, in which each plate is mounted on independent beams of the frame structure, not only strengthens the overall strength of the frame structure, but also maintains independence from the walls of the cabinet 1, without affecting the opening of the walls and facilitating maintenance of the internal structure.

[0132] This embodiment employs multi-layered partitions within the area where the test assembly 2 is located, forming a shelf-like structure. This not only supports the instruments placed on the partitions, but also partitions the area, fully utilizing the space within the cabinet 1 along the third direction z. This creates a more compact layout, facilitates the installation and placement of multiple instruments during assembly, and allows for the removal of one instrument during maintenance without affecting the others. Furthermore, the partitions can separate high- and low-voltage instruments, or different types of low-voltage instruments, to prevent signal interference between the different instruments, thereby improving the accuracy of battery 20 testing.

[0133] In some embodiments, as shown in Figures 2 and 7, the battery testing device 10 also includes an electrical control board 4 for powering and controlling the test component 2 and the battery 20. The electrical control board 4 includes a substrate 44 and multiple relays 43. The substrate 44 is arranged on the inner wall of the cabinet 1, and the multiple relays 43 are laid flat on the substrate 44.

[0134] The electrical control board 4 may further include a power supply component 41, a PLC device 42, and a relay 43. Optionally, the cabinet 1 has a rear wall 14, and the electrical control board 4 is disposed within the cabinet 1 and mounted on the rear wall 14. This structure allows the electrical control board 4 to be mounted flush against the rear wall 14, leaving more space for the layout of the test assembly 2 and the high-low voltage adapter assembly 3.

[0135] Figure 7 only schematically illustrates the positions and arrangements of the multiple relays 43. "Laying flat on the substrate 44" means that the multiple relays 43 are directly mounted on the substrate 44 and occupy different areas of the substrate 44. For example, the relays 43 may be high- and low-voltage relays.

[0136] The high-low voltage adapter assembly 3 includes a plurality of wiring terminals, at least a portion of which are electrically connected to the test assembly 2 and the electrical control board 4. For example, the high-low voltage adapter assembly 3 is configured as a panel structure, and the wiring terminals are arranged at the front of the panel structure. The lead wires of each instrument in the test assembly 2 and the power supply component 41 in the electrical control board 4 can be connected to the rear of the high-low voltage adapter assembly 3 through a circuit, and are electrically connected to the wiring terminals at the front of the high-low voltage adapter assembly 3 through the internal connectivity of the high-low voltage adapter assembly 3. The multiple wiring terminals at the front and the multiple pins of the test interface 5 can be connected separately by multiple wires. In addition, all of the multiple wiring terminals can be used for electrical connection, or a portion can be used as reserved wiring terminals. The terminals required to power and test the battery 20 are set on the high-low voltage adapter assembly 3 to facilitate wiring, detection and maintenance.

[0137] This embodiment places the electrical control board 4 on the inner wall of the cabinet 1, which can leave more space for the layout of the test assembly 2 and the high-low voltage adapter assembly 3. In traditional test cabinets, the electrical control board is placed in a separate box, and the electrical control board 4 is placed directly in the cabinet 1. The structure of the present application can make the overall internal structure layout of the battery testing device 10 more compact, thereby reducing the volume of the battery testing device 10. In addition, when the wall for installing the electrical control board 4 is openable, there is no need to remove the electrical control board 4. The electrical control board 4 can be opened with the wall to reach the external area of ​​the cabinet 1, which not only facilitates the inspection and maintenance of the electrical control board 4, but also exposes the rear side of the test assembly 2 and the high-low voltage adapter assembly 3, which is also convenient for inspection and maintenance.

[0138] Moreover, compared with the form of multiple relays 43 being installed in a plug-in stacked manner and laid flat on the substrate 44, when the wall for installing the electrical control board 4 is opened, there is no obstruction between the multiple relays 43, and each relay 43 can be easily inspected, which is easy to maintain.

[0139] In some embodiments, at least one wall of the cabinet 1 has a door-like structure.

[0140] For example, the cabinet 1 has a front wall 13 , a rear wall 14 , a left side wall 15 , and a right side wall 16 , and at least one of the front wall 13 , the rear wall 14 , the left side wall 15 , and the right side wall 16 has a door-like structure.

[0141] The door-like structure can be mounted on the second beam 102 of the frame structure in an openable and closable manner via a hinge 103. For example, the hinge 103 can be a hinge. In one structural form, a single-door structure is adopted, with one end of the door-like structure hinged to the second beam 102. In another structural form, a double-door structure is adopted, with the ends of the two door-like structures, which are separated from each other, hinged to the second beam 102 on both sides, and opened or closed from the ends closer to each other. This structure can reduce the space occupied when the door-like structures are open, and it is possible to open one of the door-like structures or both of them according to the maintenance object.

[0142] For example, referring to Figure 2, the front wall 13 can be made of transparent material, such as acrylic glass, to observe the connection status of the internal instruments and the test results. After the front wall 13 is opened, the various instruments and basic adapter components 31 in the test assembly 2 can be easily maintained; the rear wall 14 can be opened to facilitate the maintenance of the electrical control board 4; the left side wall 15 can be opened to maintain the various instruments in the test assembly 2; and the right side wall 16 can be opened to maintain the extended adapter components.

[0143] This embodiment provides a door-like structure for the wall of the cabinet 1, which can be easily opened to conveniently maintain the internal structure from different angles without removing the internal structure, thereby improving the convenience and efficiency of maintenance.

[0144] In some embodiments, the battery testing device 10 is used to perform end-of-line testing on the battery 20 .

[0145] The end-of-line test is a performance qualification test performed on the battery 20 after it is manufactured and before it leaves the factory. Optionally, the battery testing device 10 is also used to perform performance testing during the production process of the battery 20 or to perform performance testing on sample batteries 20.

[0146] This embodiment uses the battery testing device 10 to perform off-line testing on the battery 20, which is an important link in the entire production cycle of the battery. The battery 20 product is connected to the battery testing device to detect whether the various functions of the product are normal, which is conducive to ensuring the factory performance of the battery 20.

[0147] In some specific embodiments, as shown in Figures 2 to 6, the test assembly 2 and the high-low voltage adapter assembly 3 are arranged side by side along the first direction x; the high-low voltage adapter assembly 3 includes a basic adapter component 31 and an extended adapter component 32 arranged side by side along the second direction y; the test assembly 2 includes: a withstand voltage tester 24, a signal generator 21, an electrical characteristics tester 22, and a communication component 23. The area where the test assembly 2 is located is provided with a first plate 17, a second plate 18 and a third plate 19 spaced apart from bottom to top along the third direction z. The withstand voltage tester 24 is provided on the first plate 17, the signal generator 21 and the electrical characteristics tester 22 are provided side by side on the second plate 18 along the first direction x, and the communication component 23 is provided on the third plate 19; wherein the third direction z is the height direction of the cabinet 1, the first direction x is perpendicular to the second direction y and both are perpendicular to the height direction.

[0148] For example, both the basic adapter component 31 and the extended adapter component 32 have panel structures. The thickness direction of the basic adapter component 31 is consistent with the second direction y, and is arranged close to the front wall 13, with the wiring terminals thereon facing the front wall 13; the thickness direction of the extended adapter component 32 is consistent with the first direction x, and is arranged behind the basic adapter component 31, and is arranged close to the side wall of the cabinet 1 away from the test component 2, with the wiring terminals thereon facing the side wall.

[0149] The battery testing device 10 may further include an electrical control board 4, which includes a substrate 44 and a power supply component 41, a PLC device 42, and a relay 43 disposed on the substrate 44. The cabinet 1 has a rear wall 14, and the substrate 44 is mounted on the inner side of the rear wall 14. The various components are mounted on a side of the substrate 44 away from the rear wall 14. The electrical control board 4 may include a plurality of relays 43, which are arranged flat on the substrate 44.

[0150] The test interface 5 can be provided on the bottom wall 11, in the corner area formed by the front wall 13 and the side wall facing away from the test assembly 2. The basic adapter component 31 is spaced apart from the side wall facing away from the test assembly 2, and the test interface 5 is positioned within the space in the first direction x. This structure allows the wiring terminals on the extended adapter component 32 to be easily connected to the test interface 5.

[0151] This embodiment minimizes the length of the connecting wiring harnesses between the high- and low-voltage adapter assembly 3 and the test assembly 2, between the high- and low-voltage adapter assembly 3 and the test interface 5, and between the test interface 5 and the battery 20. This effectively reduces interference during testing and improves the accuracy of the performance test results of the battery 20. Furthermore, the internal layout of the cabinet 1 is compact and reasonable, reducing the overall volume and facilitating installation and maintenance. Furthermore, during testing, only the second wiring harness 30 is required to connect the test interface 5 to the product interface 201 of the battery 20, making operation convenient.

[0152] In some embodiments, as shown in FIG. 8 , the electrical control board 4 includes a power supply component 41 , and the power supply component 41 includes a first power supply 411 for supplying power to the test assembly 2 .

[0153] The first power supply 411 is used to realize internal power supply of the battery testing device 10 . The first power supply 411 leads to at least one pair of internal power supply terminals, and each pair of internal power supply terminals is electrically connected to the first power supply 411 in a disconnectable manner.

[0154] Among them, multiple pairs of internal power supply terminals can be set to realize internal circuit connection in the battery testing device 10. Some pairs of internal power supply terminals have two pins, one pin is the positive pole of the power supply, and the other pin is grounded. For example, the power supply voltage of the first power supply 411 is 24V, and this part of the internal power supply terminals supplies power to the 24V devices inside the testing device. For example, five pairs of internal power supply terminals with two pins can be set, namely Drive1+ / Drive1-, Drive2+ / Drive2-, Drive3+ / Drive3-, Drive4+ / Drive4- and Drive5+ / Drive5-. These five pairs of internal power supply terminals can be connected to the first power supply 411 through relays in a switchable manner. The five relays are K52, K53, K54, K55 and K56.

[0155] Some pairs of internal power supply terminals have three pins for powering the three-color lights: Red, Green, and Yellow. Each pin is connected to the positive terminal of the first power supply 411 via a relay: K48, K49, and K50. Some pairs of internal power supply terminals have one pin for powering the buzzer, which is connected to the positive terminal of the first power supply 411 via relay K51. A ground terminal is also provided, electrically connected to the ground terminal of the first power supply 411.

[0156] This embodiment enables the first power source 411 to be flexibly selected to be connected to at least one pair of internal power supply terminals, so as to power the devices inside the battery testing device 10 .

[0157] In some embodiments, as shown in Figure 9, the test component 2 includes a communication component 23, the communication component 23 includes a first communication component 231 and a second communication component 232, and the multiple wiring terminals include at least one pair of first terminals for realizing the first communication between the battery 20, and at least one pair of output ends of the first communication component 231 corresponds to the at least one pair of first terminals and can be electrically connected in a switchable manner.

[0158] For example, the first communication component 231 is a first CAN card, the first communication is CAN communication, and the CAN communication is implemented when at least one pair of output ends of the first communication component 231 is connected to at least one pair of first terminals.

[0159] During testing, the first communication component 231 is used to perform a CAN communication test on the battery 20. The first communication component 231 can send instructions to test whether the battery 20 can normally receive the instructions, or whether the CAN communication component of the battery 20 can successfully send instructions for the first communication component 231 to receive. Multiple pairs of first terminals can be provided to better meet the functional requirements of the CAN communication test of the battery 20. Each pair of first terminals includes two pins, CAN high and CAN low, respectively. For example, there are four pairs of first terminals: CAN1L / CAN1H, CAN2L / CAN2H, CAN3L / CAN3H, and CAN4L / CAN4H. Each pair of first terminals is connected to the corresponding output terminal of the first communication component 231 through a relay. When the relay is turned on, the channel is selected for CAN communication testing. The four relays are: K1, K2, K3, and K4.

[0160] This embodiment can perform a communication function test on the battery 20 through the first communication component 231 to test whether the communication function of the battery 20 is normal.

[0161] In some embodiments, as shown in FIG9 , the communication component 23 further includes a second communication component 232 , and at least one pair of output terminals of the second communication component 232 are connected one-to-one with corresponding pairs of output terminals of the first communication component 231 for monitoring the first communication.

[0162] For example, the second communication component 232 is a second CAN card. It is used to monitor the normal functioning of the first communication component 231 in receiving and sending commands. During monitoring, it determines whether the reporting and sending of CAN messages are normal. It can monitor some or all CAN channels. The output of the second communication component 232 is connected to the output of the first communication component 231 to be monitored. Generally, the battery 20 has two CAN communication channels. Therefore, the second communication component 232 only needs to monitor two CAN channels, and the first terminals of the remaining pairs serve as reserved interfaces.

[0163] This embodiment can perform CAN communication function testing on the battery 20 through the first communication component 231 and monitor whether the instruction receiving and sending function of the first communication component 231 is normal through the second communication component 232, thereby eliminating erroneous testing caused by failure of the first communication component 231, thereby improving the accuracy of the battery 20 test.

[0164] In some embodiments, as shown in FIG. 9 and FIG. 10 , the test assembly 2 includes an electrical characteristics tester 22 , and a pair of lead terminals of the electrical characteristics tester 22 can be selectively electrically connected to a pair of first terminals of the at least one pair of first terminals.

[0165] Among them, the communication component 23 includes a first communication component 231, and the multiple wiring terminals include at least one pair of first terminals for realizing CAN communication. At least one pair of output terminals of the first communication component 231 corresponds to at least one pair of first terminals and can be electrically connected on and off. A pair of lead terminals of the electrical characteristics tester 22 can be selectively electrically connected to a pair of first terminals in at least one pair of first terminals. When the electrical characteristics tester 22 is used to measure the electrical signal of the battery 20, a pair of lead terminals of the electrical characteristics tester 22 is connected to a pair of first terminals in at least one pair of first terminals.

[0166] Among them, terminals LVP and LVN are the positive test lead and negative test lead of the electrical characteristics tester 22 respectively. When there are multiple pairs of first terminals, each pair of lead ends includes two pins, which are CAN high and CAN low respectively. The two pins of each pair of first terminals are connected to the positive test lead and the negative test lead through a relay in a switchable manner. When the relay is in the on state, the two pins of the first terminal are connected to the positive test lead and the negative test lead respectively. The relays corresponding to the multiple pairs of first terminals are connected in sequence. When any pair of first terminals needs to be connected, the relays corresponding to the pair of first terminals are connected, and the relays corresponding to the other pairs of first terminals are disconnected to form a path connected to the relays corresponding to the first terminals to be connected. For example, the LVP / LVN terminals of the electrical characteristics tester 22 in FIG10 can be selectively connected to CAN1L / CAN1H, CAN2L / CAN2H, CAN3L / CAN3H, and CAN4L / CAN4H, with corresponding relays K10, K11, K12, and K13, respectively, for testing the electrical signals of the battery 20 via the electrical characteristics tester 22. For example, the resistance between the CAN high and CAN low pins of the first terminal of the battery 20 can be tested, or the relay drive voltage or current can be measured. When testing electrical signals, the relay cannot be energized. Since the CAN card has a differential signal that is energized, the relay between the first communication component 231 and the first terminal must be disconnected to connect to the electrical signal measurement circuit. Multiple pairs of first terminals can be provided on the panel of the high-low voltage adapter assembly 3.

[0167] This embodiment can implement the CAN communication test on the battery 20 and further implement the measurement of the internal electrical signal of the battery 20 through the electrical characteristics tester 22, without interfering with each other.

[0168] In some embodiments, the test assembly 2 includes an electrical characteristics tester 22, and the multiple wiring terminals include at least one pair of second terminals for testing the internal electrical characteristics parameters of the battery 20. A pair of lead ends of the electrical characteristics tester 22 can be selectively electrically connected to a pair of second terminals in the at least one pair of second terminals.

[0169] Each pair of second terminals has two pins, a low-voltage positive and a low-voltage negative. Each pair of second terminals is connected to the positive and negative test leads via a relay. When the relay is in the on state, the two pins of the second terminals are connected to the positive and negative test leads. The relays corresponding to multiple pairs of second terminals are connected in sequence. When any pair of second terminals needs to be connected, the relay corresponding to that pair of second terminals is connected, and the relays corresponding to the other pairs of second terminals are disconnected, forming a path connected to the relay corresponding to the terminal to be connected. For example, there are five pairs of second terminals, namely LVP1 / LVN1, LVP2 / LVN2, LVP3 / LVN3, LVP4 / LVN4, and LVP5 / LVN5. One end of the relay of the last pair of second terminals is connected to the positive and negative test leads of the electrical characteristics tester 22, and the other end is connected to the Port port and the DC- port, respectively. The relays corresponding to the five pairs of second terminals are K14, K15, K16, K17, and K18, respectively.

[0170] Multiple pairs of second terminals can be provided on the panel of the high-low voltage adapter assembly 3. As shown in Figure 10, the relays between the LVP / LVN terminals of the electrical characteristics tester 22 and the multiple pairs of first terminals, and the relays between the LVP / LVN terminals and the multiple pairs of second terminals, are sequentially connected. The positive and negative test leads of the electrical characteristics tester 22 can be selectively connected to any pair of the second terminals and any pair of the first terminals. The electrical characteristic parameter can be a voltage parameter.

[0171] This embodiment enables the positive test lead and the negative test lead of the electrical characteristics tester 22 to be selectively connected to any pair of second terminals to measure the electrical characteristic parameters inside the battery 20 .

[0172] In some embodiments, as shown in Figure 11, the test component 2 includes an electrical characteristics tester 22, the battery testing device 10 also includes a power supply component 41, the multiple wiring terminals include at least one third terminal for testing the charging signal of the battery 20, the electrical characteristics tester 22 can be selectively electrically connected to a pair of third terminals, and a first resistor is provided between each pair of third terminals and the electrical characteristics tester 22. The third terminal can be selectively connected to the positive pole of the power supply component 41 or the negative pole of the power supply component 41 through the first resistor.

[0173] The first resistor can be electrically connected to the positive electrode of the power supply component 41 as a pull-up resistor, or electrically connected to the negative electrode of the power supply component 41 as a pull-down resistor. Specifically, the first resistor can be selectively connected to the positive electrode (DC+ port) of the power supply component 41 to form a pull-up resistor, or connected to the negative electrode (DC+ terminal) of the power supply component 41 to form a pull-down resistor. For example, the DC+ port is electrically connected to the positive electrode of the second power supply 412 or the third power supply 413, and the DC- port is electrically connected to the negative electrode of the second power supply 412 or the third power supply 413.

[0174] Among them, each pair of third terminals has a pin, which is a connection detection signal. There is a pin with a preset voltage in the battery 20. After the battery 20 is charged and connected to the charging pile or charging gun, the voltage value of the pin will increase or decrease depending on the type of battery 20. Therefore, a first resistor and an interlock relay are set in series on the path corresponding to each pair of third terminals. By switching the interlock relay, the first resistor can be selectively connected to the DC- port to achieve resistance pull-down, or connected to the DC+ port to achieve resistance pull-up, thereby simulating the pull-up or pull-down of the pin voltage of the battery 20 when charging. Furthermore, a relay is also set in series on the path corresponding to each pair of third terminals to achieve connection with the electrical characteristics tester 22 when connected.

[0175] For example, there are eight pairs of third terminals. Only some of the third terminals can be used during product testing, and the other part can be used as reserved terminals. The eight pairs of third terminals are FCharge1, FCharge2, FCharge3, ​​FCharge4, FCharge5, FCharge6, FCharge7, and FCharge8, and the corresponding first resistors are R20, R22, R24, R26, R28, R30, R32, and R34, respectively. The corresponding interlock relays are K19, K21, K23, K25, K27, K29, K31, and K33, respectively, and the corresponding relays are K20, K22, K24, K26, K28, K30, K32, and K34, respectively. Each interlock relay has two switches connected to the DC- and DC+ ports, respectively. When connected to the DC- port, the first resistor functions as a pull-down resistor, and when connected to the DC+ port, the first resistor functions as a pull-up resistor. The relay contains two switches, one of which is connected in series with the first resistor. The other switch has one end connected to the port and the other end connected to a third terminal. In the circuit diagrams, ports with the same label are connected together. Figure 11 is connected to the circuit diagram in Figure 10. Multiple pairs of third terminals can be provided on the panel of the high-low voltage adapter assembly 3.

[0176] This embodiment enables the positive test lead and the negative test lead of the electrical characteristics tester 22 to be selectively connected to any pair of third terminals to measure the charging signal of the battery 20 .

[0177] In some embodiments, as shown in Figure 12, the test component 2 includes a signal generator 21 and an electrical characteristics tester 22, and the multiple wiring terminals include at least one pair of fourth terminals for power supply and at least one pair of fifth terminals for outputting waveforms; each pair of fourth terminals can be switchably electrically connected to the low-voltage power supply, and each pair of fifth terminals can be electrically connected to the signal generator 21 in an on-off manner, and the electrical characteristics tester 22 can be switchably connected to the power supply circuit in which the low-voltage power supply supplies power to the battery 20 through the fourth terminals to measure the current in the power supply circuit.

[0178] Specifically, the low-voltage power supply may include a second power supply 412 and a third power supply 413. The first power supply 411, the second power supply 412 and the third power supply 413 may be independent power supply modules, or may be integrated together, or may be implemented by using the same power supply to lead out different voltage ports.

[0179] The second power supply 412 and the third power supply 413 can provide voltages of 12V and 24V, respectively. Each pair of fourth terminals includes two pins. The multiple pairs of fourth terminals can include eight pairs of battery power supply terminals, namely VccCtrl1 / GndCtrl1, VccCtrl2 / GndCtrl2, VccCtrl3 / GndCtrl3, VccCtrl4 / GndCtrl4, VccCtrl5 / GndCtrl5, WakeUp1 / WakeUp2, BMSVCC1 / BMSGND1, and BMSVCC2 / BMSGND2. WakeUp1 / WakeUp2 provide battery wake-up signals. Of the two pins in each pair of fourth terminals, one pin is connected to the DC- port, and the other pin is connected to the DC+ port. Each pair of fourth terminals is connected to the DC- port and the DC+ port in a tactile manner via a relay.

[0180] The relays corresponding to VccCtrl1 / GndCtrl1, VccCtrl2 / GndCtrl2, VccCtrl3 / GndCtrl3, VccCtrl4 / GndCtrl4, and VccCtrl5 / GndCtrl5 are K35, K36, K37, K38, and K39 respectively. Switches K41 and K42 are set respectively in the paths where WakeUp1 and WakeUp2 are located, and one end of K41 and K42 are connected. Switches HRY1 and HRY2 are set respectively in the paths where BMSVCC1 and BMSGND1 are located, and switches HRY3 and HRY4 are set respectively in the paths where BMSVCC2 and BMSGND2 are located.

[0181] By configuring a power switching circuit, the DC+ port can selectively connect to either the second power supply 412 or the third power supply 413. Specifically, the positive terminals of the second and third power supplies 412 and 413 are connected to switches KRY5 and HRY6, respectively, before being connected together to the DC+ port and to BMSVCC1 and BMSVCC2. The ground terminals of the second and third power supplies 412 and 413 are connected together, connected in series with a normally closed switch and fuse F24, and then connected to the DC- port and BMSGND1 and BMSGND2. The positive terminals of the second and third power supplies 412 and 413 are connected to the two switches of the interlock relay K40, and then to WakeUp1 and WakeUp2, respectively.

[0182] The electrical characteristics tester 22 is used to measure the current of the power supply circuit of the second power supply 412 or the third power supply 413 , and the electrical characteristics tester 22 is connected in series to the negative electrode of the power supply.

[0183] The signal generator 21 is used to simulate the collision signal of the battery 20. The signal generator 21 can be powered by the second power supply 412 or the third power supply 413. There are two pairs of fifth terminals, each of which has one pin. The two pairs of fifth terminals are PWM1 and PWM2, which are connected to the signal generator 21 through relays K58 and K59 respectively.

[0184] Multiple pairs of fourth terminals and multiple pairs of fifth terminals are arranged on the panel of the high-low voltage adapter assembly 3 .

[0185] This embodiment can selectively power the battery 20 through the second power supply 412 or the third power supply 413 with different voltages, measure the current of the power supply circuit of the power module through the electrical characteristics tester 22, and also realize the collision signal test through the signal generator 21.

[0186] In some embodiments, as shown in Figure 13, the test component 2 includes an electrical characteristics tester 22 and a voltage withstand tester 24; the multiple wiring terminals include at least one pair of sixth terminals for testing high-voltage signals inside the battery 20, at least one pair of seventh terminals for testing low-voltage signals inside the battery 20, and at least one pair of eighth terminals for testing the resistance of the battery 20; at least one pair of sixth terminals are connected to the same pair of voltage transfer terminals, the voltage transfer terminals are electrically connected to the electrical characteristics tester 22 through a voltage divider circuit, at least one pair of seventh terminals are electrically connected to the electrical characteristics tester 22, and at least one pair of sixth terminals and at least one pair of eighth terminals are electrically connected to the voltage withstand tester 24.

[0187] In this embodiment, the low voltage signal is a first voltage electrical signal, the high voltage signal is a second voltage signal, and the first voltage signal is smaller than the second voltage signal.

[0188] Multiple pairs of sixth terminals are connected to the same pair of voltage transfer terminals HVP / HVN. Each pair of sixth terminals includes two pins, one of which is a high-voltage positive pin and the other is a high-voltage negative pin. Both are connected to battery 20. A fuse and a normally-open switch are connected in series in the path between each high-voltage positive and high-voltage negative pin. For example, the high-voltage positive pins of the ten pairs of sixth terminals are HVP1, HVP2, HVP3, HVP4, HVP5, HVP6, HVP7, HVP8, HVP9, and HVP10, respectively. The corresponding fuses are F1-F10, and the corresponding normally-open switches are RL1-RL10. The high-voltage negative pins of the ten pairs of sixth terminals are HVN1, HVN2, HVN3, HVN4, HVN5, HVN6, HVN7, HVN8, HVN9, and HVN10, respectively. The corresponding fuses are F11-F20, and the corresponding normally-open switches are RL11-RL20.

[0189] To prevent the electrical characteristics tester 22 from exceeding its range when measuring high voltage, a voltage divider circuit, such as a resistor voltage divider circuit, is provided between the electrical characteristics tester 22 and the voltage transfer terminal. In the voltage divider circuit, a second resistor is connected in series with a normally-open switch and then connected in parallel with the voltage transfer terminal in multiple groups. For example, the four second resistors are R1, R2, R3, and R4, and the normally-open switches connected in series are RL46, RL47, RL48, and RL49. Multiple third resistors are connected in series with the normally-open switches and are also connected in parallel with the voltage transfer terminal. The multiple third resistors are R0, R0-1, R-2, R-3, and R, and the normally-open switch connected in series is RL45. The negative test lead of the electrical characteristics tester 22 is directly connected to the HVN pin of the voltage transfer terminal, and the positive test lead of the electrical characteristics tester 22 is connected to the HVP pin of the voltage transfer terminal via the normally-open switch RL41, and is connected between the third resistors R-3 and R via the normally-open switch RL42.

[0190] The seventh terminal is directly connected to the electrical characteristics tester 22. The seventh terminal has two pins, one of which is a low voltage positive LVP and the other is a low voltage negative LVN, which is used to connect to the battery 20. LVP and LVN are connected to the electrical characteristics tester 22 through normally open switches RL43 and RL44 respectively.

[0191] At least one pair of sixth terminals and at least one pair of eighth terminals are connected to a withstand voltage tester 24. The withstand voltage tester 24 can output a high voltage to the sixth terminals to supply the battery 20. This voltage tester can be used in conjunction with the electrical characteristics tester 22 to measure the insulation performance of the total positive electrode of the battery 20 to the cabinet, and the insulation performance of the total negative electrode of the battery 20 to the cabinet. Each pair of eighth terminals has four pins for measuring the microresistance of the battery 20. The four pins are PES1, PE-EQS1, PE-EP1, and PE1. These four pins are connected to the withstand voltage tester 24 via normally open switches HRY60, HRY61, HRY62, and HRY63, respectively.

[0192] In this embodiment, the insulation performance test of the battery 20 can be performed by the withstand voltage tester 24. The withstand voltage tester 24 itself can realize high voltage power supply, and the electrical characteristics tester 22 can selectively realize high voltage or low voltage measurement.

[0193] Secondly, the present application provides a battery testing system, which in some embodiments, as shown in Figure 14, includes: the battery testing device 10 of the above embodiment, configured to perform performance testing on the battery 20 located at the test station 40'; and an installation component 50, configured to install the battery testing device 10 above the test station 40'.

[0194] There may be multiple test stations 40', and the battery testing system may further include a test platform 40, which provides a test station 40' when the test platform 40 is located at a specific position for testing. The test platform 40 may be fixed, or the test platform 40 may be movable, forming a test station 40' when it is moved to a specific position for testing. For example, the bottom of the test platform 40 may be provided with wheels to facilitate movement and fine-tune the position. Specifically, the test platform 40 may be an automatically guided vehicle (AGV) for carrying the battery 20, which may move along a preset track to the test station 40'. A positioning portion may be provided on the test platform 40 to locate the installation position of the battery 20.

[0195] For example, four test platforms 40 are provided in FIG14 , and correspondingly there are four test stations 40 ′. In this way, multiple batteries 20 can be tested at the same time to improve the test efficiency. Optionally, one test platform 40 and one test station 40 ′ are provided. The number of battery testing devices 10 is consistent with the number of test stations 40 ′. When multiple test stations 40 ′ are provided, the multiple test stations 40 ′ can be arranged in a rectangular array or other forms. The battery 20 is placed on the test station 40 ′. Depending on the size of the battery 20, in order to facilitate connection with the battery testing device 10 through the second wiring harness 30, the battery 20 can be placed at different positions on the test station 40 ′.

[0196] In the testing state, the battery testing device 10 is positioned above the battery 20. The battery testing device 10 can be mounted on the mounting assembly in the following manner: first, the top wall 12 of the cabinet 1 is suspended from the mounting assembly 50, which provides a suspending force for the battery testing device 10; second, the bottom wall 11 of the cabinet 1 is placed on the mounting assembly 50, which provides support for the battery testing device 10; and third, the side walls of the cabinet 1 are connected to the mounting assembly 50.

[0197] Optionally, the cabinet 1 is detachably connected to the mounting assembly 50. For example, when the top wall 12 of the cabinet 1 is suspended from the mounting assembly 50, or when the side wall of the cabinet 1 is connected to the mounting assembly 50, the cabinet 1 can be connected to the mounting assembly 50 via fasteners or snap-fits. When the bottom wall 11 of the cabinet 1 is placed on the mounting assembly 50, the cabinet 1 can be connected to the mounting assembly 50 via fasteners or snap-fits. Alternatively, the battery testing device 10 can be directly placed on the mounting assembly 50 without connection. By making the cabinet 1 detachably connected to the mounting assembly 50, when it is necessary to reduce the number of test stations 40', the corresponding battery testing device 10 can be conveniently removed for use in other battery testing systems. When it is necessary to add a test station 40', the battery testing device 10 can be quickly installed on the mounting assembly 50. In this way, the test station 40' can be changed conveniently and quickly.

[0198] The battery testing system of this embodiment can conveniently perform performance tests on the battery 20. Since the battery testing device 10 is an integrated structure, it can independently perform performance tests. When arranging the battery testing system, there is no need to lay a long external wiring harness, which can improve the anti-interference ability of the battery 20 test, thereby improving the accuracy of the test results and reducing the cost of the test system. Moreover, this structure can flexibly set the battery testing device 10 and the test station 40' correspondingly, making it easy to quickly expand the test station 40'.

[0199] Moreover, by placing the battery testing device 10 above the test station 40', the length of the second wiring harness 30 connecting the test interface 5 and the battery 20 can be shortened, thereby reducing interference during testing and improving the accuracy of the test results of the battery 20. In particular, when the test interface 5 is disposed on the bottom wall 11, the length of the second wiring harness 30 can be minimized regardless of whether the product interface 201 is located at the top or the side of the battery 20. In addition, the battery testing device 10 only needs to occupy the space at the top of the battery 20 and does not need to occupy additional space in the horizontal plane, which facilitates the rapid expansion of the test station 40'. In addition, the battery 20 can pass directly from under the battery testing device 10 when being transferred without the need to avoid space, and the battery testing device 10 is at a certain height from the bottom surface, which makes it convenient for the operator to observe the test results and is also convenient for manual operation or maintenance.

[0200] In some embodiments, as shown in FIG14 , the battery testing device 10 further includes a test interface 5 disposed on a wall of the cabinet 1 for electrically connecting to the battery 20 , the test interface 5 being electrically connected to at least some of the plurality of wiring terminals, and the mounting assembly 50 being configured to mount the battery testing device so that the test interface 5 is located in the central area of ​​the projection of the battery 20 in the horizontal plane.

[0201] This embodiment can connect the test interface 5 and the product interface 201 of the battery 20 through the second wiring harness 30. No matter where the product interface 201 is located on the battery 20, there is no need to use a longer second wiring harness 30, which can reduce interference to the second wiring harness 30 and also facilitate the connection of the test interface 5 and the product interface 201 through the second wiring harness 30.

[0202] In some embodiments, as shown in Figure 15, the battery testing system includes two battery testing devices 10, and the installation assembly 50 includes: a horizontal bracket 51, two vertical brackets 52 and two suspension components 53, the two vertical brackets 52 are respectively arranged at the two ends of the horizontal bracket 51 along the first direction x, the two suspension components 53 are respectively arranged at the two ends of the horizontal bracket 51 along the second direction x and are located below the horizontal bracket 51, and the two battery testing devices 10 are respectively installed at the bottom ends of the two groups of suspension components 53; wherein, the second direction y is perpendicular to the first direction x.

[0203] The horizontal support 51 may include two first rods 511 and two second rods 512. The two first rods 511 are spaced apart along the second direction y, and the two second rods 512 are connected between the first and second ends of the two first rods 511, respectively, to form a rectangular frame structure. To enhance the strength of the horizontal support 51, the middle region of the two first rods 511 along the second direction y is connected by a third rod 513. Both the second and third rods 512, 513 extend along the first direction x. To further enhance the strength of the horizontal support 51, a reinforcement rod 55 may be provided on the first rod 511. The reinforcement rod 55 may extend along the entire length of the first rod 511, or may be provided intermittently.

[0204] The vertical bracket 52 may include a fourth rod 521 and two fifth rods 522. The fourth rod 521 extends along a third direction z, which is a vertical direction. The top of the fourth rod 521 is connected to the middle area of ​​the first rod 511. The two ends of the fourth rod 521 are respectively connected to the first rod 511 and the fourth rod 521, and enclosed to form a triangle, which plays a reinforcing role. The two fifth rods 522 in the same vertical bracket 52 can be symmetrically arranged relative to the fourth rod 521.

[0205] The suspension component 53 can be mounted on the first rod 511 and includes a suspension rod 531. The top of the suspension rod 531 is connected to the first rod 511, and the bottom of the suspension rod 531 is connected to the top wall 12 of the cabinet 1. To prevent the battery testing device 10 from shaking, two suspension rods 531 are spaced apart along the first direction x. The spacing between the two suspension rods 531 is consistent with the length of the cabinet 1. This allows the suspension rods 531 to be connected to the edge of the cabinet 1, improving connection stability. The position of the two suspension rods 531 on the first rod 511 can be adjusted according to actual needs.

[0206] The bottom end of the hanging rod 531 is detachably connected to the cabinet 1, and / or the top end of the hanging rod 531 is detachably connected to the first rod 511. This structure can conveniently realize the installation and removal of the battery testing device 10, and the battery testing device 10 can be flexibly increased or decreased according to the actual number of test stations 40'.

[0207] This embodiment can install two battery testing devices 10 through a mounting assembly 50, making the structure of the mounting assembly 50 more compact and saving space. Moreover, this mounting assembly 50 can stably suspend and install the two battery testing devices 10, and the vertical bracket 52 will not affect the setting of the battery testing device 10 while being reliably supported on the bottom surface or other platform.

[0208] In some embodiments, for the same installation assembly 50 , the front walls 13 of the cabinets 1 of the two battery testing devices 10 are arranged opposite to each other along the second direction y, and the front walls 13 have observation windows for observing the test results of the test assembly 2 .

[0209] The front wall 13 may be made of a transparent material, or may have an exposed display area for the operator to observe the test results of the test assembly 2 .

[0210] This embodiment allows an operator to conveniently observe the test results of the battery testing devices 10 on both sides or perform operations when the operator is in the channel between the two test platforms 40 corresponding to the same mounting assembly 50, thereby improving the test efficiency.

[0211] In some embodiments, the battery testing device also includes a test interface 5 provided on the wall of the cabinet 1 for electrically connecting to the battery 20, and the test interface 5 is electrically connected to at least some of the multiple wiring terminals; for the same installation component 50, there is a vertical center plane between the two test stations 40' along the second direction y, and the installation positions of the two battery testing devices 10 and the test interface 5 are mirrored relative to the vertical center plane.

[0212] For this arrangement, the two battery testing devices 10 corresponding to the same mounting assembly 50 have different structures. For example, with the front wall 13 as a reference, for one of the battery testing devices 10, the test assembly 2 and the high and low voltage adapter assembly 3 are arranged at left and right intervals along the first direction x, and the test interface 5 is located on the bottom wall 11 near the right front; for the other battery testing device 10, the high and low voltage adapter assembly 3 and the test assembly 2 are arranged at left and right intervals along the first direction x, and the test interface 5 is located on the bottom wall 11 near the left front.

[0213] This embodiment enables the test interface 5 to be located in the central area of ​​the projection of the battery 20 in the horizontal plane. When the test interface 5 is connected to the product interface 201 of the battery 20 through the second wiring harness 30, no matter where the product interface 201 is located in the battery 20, there is no need to use a longer second wiring harness 30, which can reduce interference with the second wiring harness 30 and also facilitate the connection of the test interface 5 to the product interface 201 through the second wiring harness 30.

[0214] In some embodiments, as shown in Figures 16 and 17, the installation assembly 50 also includes a connecting member 54, the connecting member 54 includes a horizontal portion 541 and a vertical portion 542; the first end of the horizontal portion 541 is connected to the first end of the vertical portion 542; the second end of the horizontal portion 541 is connected to the cabinet body 1, and the second end of the vertical portion 542 is connected to the bottom end of the hanging component 53; and / or the second end of the horizontal portion 541 is connected to the horizontal bracket 51, and the second end of the vertical portion 542 is connected to the top end of the hanging component 53.

[0215] To enhance the connection strength of the connecting member 54, a reinforcement portion is provided between the horizontal portion 541 and the vertical portion 542. Both the horizontal portion 541 and the vertical portion 542 can be mounted using fasteners to achieve a removable connection. To ensure a reliable connection, each suspension rod 531 of the suspension component 53 is provided with a connecting member 54 on either side along the second direction y. A relief portion can be provided on the top wall 12 to allow the bottom end of the suspension rod 531 to be mounted on the first beam 101 of the frame structure. A connecting member 54 is provided on each side of the suspension rod 531 along the first direction x, and each connecting member 54 can be connected to the first rod 511.

[0216] In this embodiment, the battery testing device 10 can be detachably connected to the mounting assembly 50 by providing the connecting member 54 , and reliable installation can be achieved even for the mounting assembly 50 formed by overlapping rod-like structures.

[0217] In some embodiments, as shown in FIG. 14 , at least two mounting assemblies 50 are spaced apart along a first direction x; and / or at least two mounting assemblies 50 are spaced apart along a second direction y, where the second direction y is perpendicular to the first direction x.

[0218] At least two mounting assemblies 50 are spaced apart along the first direction x. For example, two mounting assemblies are provided in FIG14 . These two mounting assemblies 50 may share a second rod 512 located in the middle. At least two mounting assemblies 50 are spaced apart along the second direction y. The plurality of mounting assemblies 50 spaced apart in the second direction y may be independently arranged. All test stations 40 ′ may be arranged in a rectangular array.

[0219] This embodiment can conveniently expand the number of test stations 40 ′ to test multiple batteries 20 simultaneously, thereby improving test efficiency.

[0220] In some specific embodiments, as shown in Figures 14 and 15 , the battery testing system includes four test stations 40', each of which houses a battery 20. Two test stations 40' are spaced apart in the second direction y, and two battery testing devices 10 are suspended and mounted via the same mounting assembly 50. The front walls 13 of the two battery testing devices 10 are positioned relative to each other along the second direction y, and the mounting positions and respective test interfaces 5 are mirrored relative to the vertical center plane between the two test stations 40', such that the test interfaces 5 are both located in the center of the horizontal projection of the battery 20. Two test stations 40' are spaced apart in the first direction x and suspended and mounted via the same mounting assembly 50. The two mounting assemblies 50 share a central first rod 511 and a vertical support 52 to conserve installation space. Each battery testing device 10 is detachably mounted relative to the mounting assembly 50.

[0221] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A battery testing device (10), comprising: A cabinet (1), wherein the interior area of ​​the cabinet (1) comprises a first area and a second area; A test component (2), arranged in the first area; and a high-low voltage adapter assembly (3) disposed in the second area, the high-low voltage adapter assembly (3) being electrically connected to the test assembly (2) and providing a plurality of connection terminals for electrically connecting to a battery (20), the plurality of connection terminals comprising at least one of a low voltage connection terminal (311) and a high voltage connection terminal (312), The test component (2) is configured to perform a performance test on the battery (20) via the high-low voltage adapter component (3).

2. The battery testing device (10) according to claim 1, wherein: The battery testing device further comprises a testing interface (5) arranged on a wall surface of the cabinet (1) and used for electrically connecting to the battery (20); the testing interface (5) is electrically connected to at least some of the plurality of connecting terminals.

3. The battery testing device (10) according to claim 2, wherein: The battery testing device (10) further comprises a connection detection component (6), which is arranged close to the test interface (5) and is configured to detect the connection state between the test interface (5) and an external wiring harness.

4. The battery testing device (10) according to any one of claims 1 to 3, wherein: A partition (10') is provided inside the cabinet (1), and the partition (10') is used to separate the internal area of ​​the cabinet (1) into the first area and the second area.

5. The battery testing device (10) according to any one of claims 1 to 4, wherein: The high-low voltage adapter assembly (3) comprises a basic adapter component (31) and an extended adapter component (32), wherein both the basic adapter component (31) and the extended adapter component (32) have the connection terminal, and the extended adapter component (32) is detachably arranged.

6. The battery testing device (10) according to claim 5, wherein: The cabinet (1) has a first wall and a second wall adjacent to each other, the basic adapter component (31) comprises a first panel, the first panel is arranged close to the first wall, and part of the plurality of connection terminals are arranged on a surface with the largest area facing the first wall, and the extended adapter component (32) comprises a second panel, the first panel is arranged close to the second wall, and the remaining plurality of connection terminals are arranged on a surface with the largest area facing the second wall.

7. The battery testing device (10) according to any one of claims 1 to 6, wherein: The test component (2) includes a communication component (23), the communication component (23) includes a first communication component (231), the plurality of connection terminals include at least one pair of first terminals for realizing a first communication with the battery (20), and at least one pair of output ends of the first communication component (231) corresponds to at least one pair of the first terminals and can be electrically connected in an on-off manner.

8. The battery testing device (10) according to claim 7, wherein: The communication component (23) further comprises a second communication component (232), wherein at least one pair of output terminals of the second communication component (232) is connected to a corresponding pair of output terminals of the first communication component (231) in a one-to-one correspondence, and is used for monitoring the first communication.

9. The battery testing device (10) according to claim 7 or 8, wherein: The test assembly (2) comprises an electrical characteristics tester (22), a pair of lead terminals of the electrical characteristics tester (22) being selectively electrically connected to a pair of first terminals of the at least one pair of first terminals.

10. The battery testing device (10) according to any one of claims 1 to 9, wherein: The test assembly (2) includes an electrical characteristics tester (22), the plurality of connection terminals include at least one pair of second terminals for testing electrical characteristic parameters of the battery (20), and a pair of lead terminals of the electrical characteristics tester (22) can be selectively electrically connected to a pair of second terminals in the at least one pair of second terminals.

11. The battery testing device (10) according to any one of claims 1 to 10, wherein: The test assembly (2) comprises a signal generator (21) and an electrical characteristics tester (22); the plurality of connection terminals comprise at least one pair of fourth terminals for power supply and at least one pair of fifth terminals for outputting waveforms; each pair of the fourth terminals can be switchably electrically connected to a low-voltage power supply, and each pair of the fifth terminals can be switchably electrically connected to the signal generator (21); the electrical characteristics tester (22) can be switchably connected to a power supply circuit in which the low-voltage power supply supplies power to the battery (20) via the fourth terminals, so as to measure the current of the power supply circuit.

12. The battery testing device (10) according to any one of claims 1 to 11, wherein: The test assembly (2) comprises an electrical characteristics tester (22) and a withstand voltage tester (24); The plurality of connection terminals include at least one pair of sixth terminals for testing a high voltage signal inside the battery (20), at least one pair of seventh terminals for testing a low voltage signal inside the battery (20), and at least one pair of eighth terminals for testing the resistance of the battery (20); at least one pair of the sixth terminals are connected to the same pair of voltage transfer terminals, the voltage transfer terminals are electrically connected to the electrical characteristics tester (22) through a voltage divider circuit, at least one pair of the seventh terminals are electrically connected to the electrical characteristics tester (22), and at least one pair of the sixth terminals and at least one pair of the eighth terminals are electrically connected to the withstand voltage tester (24).

13. The battery testing device (10) according to any one of claims 1 to 12, wherein: The test assembly (2) includes an electrical characteristics tester (22), and the battery testing device (10) further includes a power supply component (41). The plurality of connection terminals include at least one third terminal for testing a charging signal of the battery (20). The electrical characteristics tester (22) can be selectively electrically connected to a pair of the third terminals. A first resistor is provided between each pair of the third terminals and the electrical characteristics tester (22). The third terminals can be selectively connected to the positive electrode of the power supply component (41) or the negative electrode of the power supply component (41) through the first resistor.

14. The battery testing device (10) according to any one of claims 1 to 13, wherein: The test assembly (2) comprises: a low-voltage test component (2A) and a high-voltage test component (2B), wherein the low-voltage test component (2A) and the high-voltage test component (2B) are arranged at a certain distance from each other in the first area.

15. The battery testing device (10) according to any one of claims 1 to 14, wherein: The battery testing device (10) further comprises an electrical control board (4) for supplying power to and controlling the testing assembly (2) and the battery (20); the electrical control board (4) comprises a substrate (44) and a plurality of relays (43); the substrate (44) is arranged on the inner wall of the cabinet (1); and the plurality of relays (43) are laid flat on the substrate (44).

16. The battery testing device (10) according to any one of claims 1 to 15, wherein: At least one wall of the cabinet (1) adopts a door-shaped structure.

17. A battery testing system comprising: The battery testing device (10) according to any one of claims 1 to 16, configured to perform a performance test on a battery (20) located at a testing station (40'); and The mounting assembly (50) is configured to mount the battery testing device (10) above the testing station (40').

18. The battery testing system according to claim 17, wherein: The battery testing device (10) further comprises a test interface (5) arranged on a wall of the cabinet (1) and used for electrically connecting to the battery (20), wherein the test interface (5) is electrically connected to at least some of the plurality of connection terminals, and the mounting assembly (50) is configured to mount the battery testing device so that the test interface (5) is located in a central area of ​​a projection of the battery (20) in a horizontal plane.

19. The battery testing system according to claim 17 or 18, comprising two of the battery testing devices (10), wherein the mounting assembly (50) comprises: A horizontal bracket (51), two vertical brackets (52) and two hanging components (53), wherein the two vertical brackets (52) are respectively arranged at the two ends of the horizontal bracket (51) along a first direction (x), the two hanging components (53) are respectively arranged at the two ends of the horizontal bracket (51) along a second direction (y) and are located below the horizontal bracket (51), and the two battery testing devices (10) are respectively installed at the bottom ends of the two hanging components (53); wherein the second direction (y) is perpendicular to the first direction (x).

20. The battery testing system according to claim 19, wherein: For the same installation assembly (50), the front walls (13) of the cabinets (1) of the two battery testing devices (10) are arranged opposite to each other along the second direction (y), and the front walls (13) have an observation window for observing the test results of the test assembly (2).

21. The battery testing system according to claim 20, wherein: The battery testing device further comprises a testing interface (5) arranged on a wall surface of the cabinet (1) and used for being electrically connected to the battery (20), wherein the testing interface (5) is electrically connected to at least some of the plurality of connection terminals; For the same installation assembly (50), the distance between the two test stations (40') along the second direction (y) A vertical center plane is provided, and the installation positions of the two battery test devices (10) and the test interface (5) are mirror-set relative to the vertical center plane.

22. The battery testing system according to any one of claims 19 to 21, wherein: The mounting assembly (50) further comprises a connecting member (54), wherein the connecting member (54) comprises a transverse portion (541) and a vertical portion (542), wherein a first end of the transverse portion (541) is connected to a first end of the vertical portion (542); The second end of the transverse portion (541) is connected to the cabinet (1), and the second end of the vertical portion (542) is connected to the bottom end of the hanging component (53); and / or the second end of the transverse portion (541) is connected to the horizontal support (51), and the second end of the vertical portion (542) is connected to the top end of the hanging component (53).

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