Battery cell detection device and formation and capacity grading equipment

Abstract

The application provides a battery cell detection device and a formation and capacity equipment, and belongs to the field of battery manufacturing equipment. The battery cell detection device comprises a base, an adjusting mechanism and a plurality of probe assemblies. The plurality of probe assemblies are arranged at intervals along a first direction on the base, and the probe assemblies are used for detecting battery cells. The plurality of probe assemblies comprise a plurality of first probe assemblies and a plurality of second probe assemblies. The first probe assemblies are fixedly connected to the base, the second probe assemblies are movably arranged along a second direction on the base, the second direction is perpendicular to the first direction, and at least one second probe assembly is arranged between every two adjacent first probe assemblies. The adjusting mechanism is in transmission connection with the second probe assemblies, and the adjusting mechanism is used for driving the plurality of second probe assemblies to move synchronously along the second direction, so as to adjust the height positions of the second probe assemblies. The battery cell detection device with the structure has a short time required in the process of changing types and is convenient to operate, thereby being favorable for improving the detection efficiency.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment, and more specifically, to a battery cell detection device and a formation and capacity testing device. Background Technology

[0002] Lithium-ion batteries possess outstanding advantages such as high energy density, low environmental pollution, high power density, long lifespan, wide applicability, and low self-discharge coefficient. They are among the most widely used batteries in the world today and a crucial component of new energy development. A lithium-ion battery cell is assembled from positive electrode sheets, negative electrode sheets, and a separator through winding or stacking to form an electrode assembly, which is then housed in a casing and filled with electrolyte.

[0003] In the production of battery cells, the formation and capacity testing of the cells is a crucial step. After formation and capacity testing, to ensure the quality of the produced cells, they need to be probed to check their formation and capacity testing quality. However, in existing production lines, when the number of battery cells undergoing batch formation and capacity testing changes, the battery cell formation and capacity testing needle bed needs to be changed. This requires the battery cell probing device to adjust the number and position of its probe components according to the number and position of battery cells in the tray to meet the batch testing requirements. However, the changeover process in existing battery cell probing devices is time-consuming, reducing the probing efficiency and hindering the improvement of production efficiency. Summary of the Invention

[0004] This application provides a battery cell detection device and a formation and capacity testing equipment, which can effectively improve the production efficiency of battery cells.

[0005] In a first aspect, embodiments of this application provide a battery cell detection device, including a base, an adjustment mechanism, and a plurality of probe assemblies; the plurality of probe assemblies are spaced apart on the base along a first direction, and the probe assemblies are used to detect the battery cells. The plurality of probe assemblies include a plurality of first probe assemblies and a plurality of second probe assemblies. The first probe assemblies are fixedly connected to the base, and the second probe assemblies are movably disposed on the base along a second direction perpendicular to the first direction. At least one second probe assembly is disposed between every two adjacent first probe assemblies. The adjustment mechanism is drivenly connected to the second probe assemblies, and the adjustment mechanism is used to drive the plurality of second probe assemblies to move synchronously along the second direction to adjust the height position of the second probe assemblies.

[0006] In the above technical solution, a plurality of first probe assemblies and a plurality of second probe assemblies are spaced apart on the base along a first direction. At least one second probe assembly is positioned between every two adjacent first probe assemblies. The second probe assemblies are movably mounted on the base along a second direction perpendicular to the first direction. An adjustment mechanism can synchronously drive the multiple second probe assemblies to move relative to the base along the second direction, simultaneously adjusting the height of the second probe assemblies in the second direction. This allows the second probe assemblies to be aligned with or staggered from the first probe assemblies in the second direction. This enables rapid switching of the battery cell detection device when the number of battery cells to be detected changes, adjusting the number of probe assemblies used for detecting battery cells. This structure results in shorter operation time during the switching process and ease of operation, effectively improving the detection efficiency of battery cells and consequently increasing battery cell production efficiency. Furthermore, the adjustment mechanism allows for one-click switching of the battery cell detection device, simplifying operation and eliminating the need for disassembly, rewiring, or recalibration of the second probe assemblies. This reduces the impact on the current accuracy of the battery cell detection device.

[0007] In some embodiments, the adjustment mechanism includes an adjustment rod and a plurality of first transmission components; the adjustment rod extends along the first direction and is rotatably disposed on the base, the adjustment rod is drively connected to each of the second probe components through a first transmission component, and the adjustment rod is configured to drive the plurality of second probe components to move synchronously along the second direction when it rotates relative to the base.

[0008] In the above technical solution, the adjusting rod is rotatably mounted on the base around an axis arranged along the first direction. Rotating the adjusting rod allows multiple second probe assemblies to be moved simultaneously along the second direction. This simple structure reduces the space occupied and range of motion of the adjusting rod. Furthermore, the adjusting rod is connected to the corresponding second probe assembly via a first transmission assembly, allowing the force exerted by the adjusting rod on the second probe assembly, the direction of the force, and the range of motion of the second probe assembly to be easily adjusted via the first transmission assembly to meet different operational requirements.

[0009] In some embodiments, the first transmission assembly includes a first movable seat and a rotating seat; the first movable seat is movably disposed on the base along the second direction and is connected to the second probe assembly; the rotating seat is circumferentially rotatable and axially locked on the base, the rotation axis of the rotating seat is arranged along the second direction, the rotating seat is threadedly engaged with the first movable seat, and the rotating seat is drivenly connected to the adjusting rod, the adjusting rod being used to drive the rotating seat to rotate relative to the base.

[0010] In the above technical solution, the first transmission assembly is provided with a first movable seat and a rotating seat. The first movable seat is movably disposed on the base and connected to the second probe assembly. The rotating seat is circumferentially rotatable and axially locked on the base. By threading the rotating seat and the first movable seat together, the adjusting rod can drive the first movable seat to move relative to the base in the second direction when driving the rotating seat to rotate relative to the base, thereby realizing the movement of the second probe assembly in the second direction. This first transmission assembly has a simple structure, is easy to implement, and has high stability. On the other hand, it gives the first movable seat a certain self-locking function relative to the rotating seat to reduce the phenomenon of the first movable seat moving relative to the base in the second direction. Thus, the stability of the second probe assembly in detecting battery cells can be guaranteed during the detection of battery cells by the battery cell detection device.

[0011] In some embodiments, the first transmission assembly further includes two bevel gears; the two bevel gears mesh with each other, one of the two bevel gears is connected to the adjusting rod, and the other is connected to the rotating seat, the adjusting rod and the rotating seat are connected by the two bevel gears.

[0012] In the above technical solution, by setting two bevel gears between the adjusting rod and the rotating seat, the two bevel gears mesh with each other, and the two bevel gears are respectively connected to the adjusting rod and the rotating seat, so that when the adjusting rod rotates about the axis arranged in the first direction, it can drive the rotating seat to rotate about the axis arranged in the second direction through the two bevel gears, thereby realizing the transmission connection between the adjusting rod and the rotating seat.

[0013] In some embodiments, the first movable seat is provided with a limiting through hole through which the adjusting rod passes; the limiting through hole is used to limit the range of movement of the first movable seat in the second direction.

[0014] In the above technical solution, by providing a limiting through hole on the first movable seat for the adjusting rod to pass through, the first movable seat can be restricted by the adjusting rod when it moves in the second direction, thereby realizing the limiting function of the first movable seat moving in the second direction, which is conducive to controlling the movement stroke of the first movable seat in the second direction, and facilitates operation and stable control.

[0015] In some embodiments, the plurality of probe assemblies further includes a plurality of third probe assemblies; the third probe assemblies are movably disposed on the base along the first direction, and at least one third probe assembly is disposed between each pair of adjacent first probe assemblies; the adjustment mechanism is drivenly connected to the third probe assemblies, and the adjustment mechanism is used to drive the plurality of third probe assemblies to move synchronously along the first direction to adjust the position of the third probe assemblies in the first direction.

[0016] In the above technical solution, multiple third probe components are spaced apart on the base along the first direction. By adjusting the components, multiple third probe components can be driven to move synchronously along the first direction, so as to adjust the position of the third probe components in the first direction at the same time. This is beneficial to realize the rapid change of the battery cell detection device when the position of the battery cell to be detected changes, thereby effectively shortening the operation time required for the battery cell detection device to change.

[0017] In some embodiments, a second probe component and two third probe components are disposed between each pair of adjacent first probe components, and the two third probe components are disposed on both sides of the second probe component in the first direction; the adjustment mechanism is used to drive the plurality of second probe components and the plurality of third probe components to move synchronously, and when the second probe component rises along the second direction, the two third probe components adjacent to the second probe component move closer to each other in the first direction.

[0018] In the above technical solution, by setting a third probe assembly on each side of each second probe assembly in the first direction, and by adjusting the mechanism to drive the second probe assembly and the third probe assembly to move synchronously, the adjusting mechanism can simultaneously drive the two third probe assemblies adjacent to the second probe assembly to move closer or further away from each other when driving the second probe assembly to rise or fall in the second direction. This achieves the change in position of multiple probe assemblies of the battery cell detection device while reducing the number of probe assemblies. The battery cell detection device with this structure can effectively ensure that the spacing between the remaining multiple probe assemblies is the same after some probe assemblies are reduced, thereby meeting the detection requirements of the battery cell, and thus eliminating the need to reduce the probe assemblies at equal intervals in order to ensure that the spacing between the reduced multiple probe assemblies is the same.

[0019] In some embodiments, the adjustment mechanism includes an adjustment rod and a plurality of second transmission components; the adjustment rod extends along the first direction and is rotatably disposed on the base, the adjustment rod is drively connected to each of the third probe components through a second transmission component, and the adjustment rod is configured to drive the plurality of third probe components to move synchronously along the first direction when it rotates relative to the base.

[0020] In the above technical solution, each third probe assembly is connected to the adjusting rod through a second transmission assembly, so that when the adjusting rod rotates, it can synchronously drive multiple third probe assemblies to move along the first direction. Moreover, the adjusting mechanism with this structure makes it easy to adjust the force exerted by the adjusting rod on the third probe assembly, the direction of the force, and the range of movement of the third probe assembly through the second transmission assembly to meet different operational requirements.

[0021] In some embodiments, the second transmission assembly includes a second movable seat; the second movable seat is movably disposed on the base along the first direction, the second movable seat is connected to the third probe assembly, and the second movable seat is threadedly engaged with the adjusting rod.

[0022] In the above technical solution, the second transmission assembly is provided with a second movable seat movably disposed on the base along the first direction, and the second movable seat is connected to the third probe assembly. By threading the adjusting rod to the second movable seat, the adjusting rod can drive the second movable seat to move relative to the base in the first direction when rotating relative to the base about an axis arranged along the first direction. The structure is simple, easy to implement, and has high stability. In addition, this structure enables the transmission connection between the adjusting rod and the second movable seat, giving the second movable seat a certain self-locking function relative to the adjusting rod. This effectively reduces the phenomenon of the second movable seat moving relative to the base in the first direction, thereby improving the stability and accuracy of the third probe assembly when probing individual battery cells.

[0023] Secondly, embodiments of this application also provide a formation and capacity testing device, including the aforementioned battery cell detection device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This application provides schematic diagrams of the structure of a battery cell detection device for some embodiments;

[0026] Figure 2 A front view of a battery cell detection device is provided for some embodiments of this application;

[0027] Figure 3 for Figure 1 A magnified view of point A on the battery cell detection device shown;

[0028] Figure 4 This is a schematic diagram of the structure of a first transmission assembly provided in some embodiments of this application;

[0029] Figure 5 A cross-sectional view of a first transmission assembly provided for some embodiments of this application;

[0030] Figure 6 A schematic diagram of the structure of a battery cell detection device provided in some embodiments of this application when the second probe assembly is in an idle position;

[0031] Figure 7 This is a schematic diagram of the structure of the second transmission assembly provided in some embodiments of this application;

[0032] Figure 8 A cross-sectional view of a second transmission assembly provided for some embodiments of this application.

[0033] Icons: 100-Battery cell detection device; 10-Base; 11-Mounting block; 20-Adjusting mechanism; 21-Adjusting rod; 22-First transmission assembly; 221-First moving seat; 2211-First external thread; 2212-Limiting through hole; 2212a-First end wall; 2212b-Second end wall; 222-Rotating seat; 2221-First internal thread; 223-Bevel gear; 23-Second transmission assembly; 231-Second moving seat; 2311-Second internal thread; 2312-Moving groove; 232-Rotating component; 2321-Second external thread; 30-First probe assembly; 40-Second probe assembly; 50-Third probe assembly; X-First direction; Y-Second direction. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0036] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0039] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0040] In this application, "multiple" means two or more (including two).

[0041] In this application, the battery cell may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, etc., and the embodiments of this application are not limited to these. The battery cell may be cylindrical, flat, cuboid, or other shapes, etc., and the embodiments of this application are not limited to these. Battery cells are generally divided into three types according to their packaging method: cylindrical battery cells, square battery cells, and pouch battery cells, and the embodiments of this application are not limited to these.

[0042] A battery cell includes an electrode assembly and an electrolyte. The electrode assembly consists of a positive electrode, a negative electrode, and a separator. The battery cell primarily functions by the movement of metal ions between the positive and negative electrodes. The positive electrode includes a positive current collector and a positive active material layer. The positive active material layer is coated on the surface of the positive current collector, and the uncoated positive current collector protrudes beyond the coated one, serving as the positive electrode tab. Taking a lithium-ion battery as an example, the positive current collector can be made of aluminum, and the positive active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium, or lithium manganese oxide, etc. The negative electrode includes a negative current collector and a negative active material layer. The negative active material layer is coated on the surface of the negative current collector, and the uncoated negative current collector protrudes beyond the coated one, serving as the negative electrode tab. The negative electrode current collector can be made of copper, and the negative electrode active material can be carbon or silicon, etc. To ensure that a large current can be passed without melting, there are multiple positive electrode tabs stacked together, and there are multiple negative electrode tabs stacked together.

[0043] The separator can be made of PP (polypropylene) or PE (polyethylene), etc. Furthermore, the electrode assembly can be a wound structure or a stacked structure; the embodiments of this application are not limited to these.

[0044] In the production process of battery cells, the formation and capacity testing of battery cells is an extremely important step. After the formation and capacity testing of battery cells is completed, it is necessary to test the battery cells in order to ensure the production quality of the battery cells.

[0045] The inventors discovered that in existing production lines, battery cells are typically batch-processed for capacity testing. However, when the number or position of battery cells in a batch changes, the battery cell capacity testing bed needs to be redesigned. This requires the battery cell detection device to adjust the number and position of its probe assemblies according to the number and position of battery cells in the battery cell tray to meet the batch testing requirements. However, in existing technology, when the number of battery cells changes, the battery cell detection device needs to manually adjust each probe assembly to ensure the number of probe assemblies matches the number of detection channels. If the number of channels decreases, excess probe assemblies are removed; if the number of channels increases, the number of probe assemblies is increased. This results in a longer processing time during the changeover process, reducing the detection efficiency of battery cells and hindering the improvement of battery cell production efficiency and cycle time.

[0046] Based on the above considerations, in order to solve the problem of low detection efficiency of battery cells after formation and capacity testing, the inventors have conducted in-depth research and designed a battery cell detection device, including a base, an adjustment mechanism and multiple probe assemblies. The multiple probe assemblies are arranged at intervals on the base along a first direction. The multiple probe assemblies include multiple first probe assemblies and multiple second probe assemblies. The first probe assemblies are fixedly connected to the base, and the second probe assemblies are movably disposed on the base along a second direction perpendicular to the first direction. The adjustment mechanism can synchronously drive the multiple second probe assemblies to move relative to the base in the second direction, so as to realize the rapid changeover of the battery cell detection device.

[0047] When the number of battery cells to be detected changes, the battery cell detection device with this structure can synchronously drive each second probe assembly to move relative to the base in a second direction through the adjustment mechanism. This allows for simultaneous adjustment of the height of the second probe assembly in the second direction, thereby aligning or offsetting the second probe assembly with the first probe assembly in the second direction. This enables rapid changeover of the battery cell detection device as the number of battery cells decreases or increases, saving the operation time required for changeover and thus improving the detection efficiency of battery cells, thereby increasing the production efficiency of battery cells.

[0048] Furthermore, when changing the battery cell detection device, the device can be changed with a single click by adjusting the mechanism. The operation is simple and does not require disassembly and rewiring of the second probe assembly. Therefore, there is no need to recalibrate the second probe assembly, which helps to reduce the impact on the current accuracy of the battery cell detection device.

[0049] This application provides a battery cell detection device, which can improve the problems of existing battery cell detection devices having long operation time during the changeover process, reducing the detection efficiency of battery cells, and thus hindering the improvement of battery production efficiency and production cycle. The specific structure of the battery cell detection device will be described in detail below with reference to the accompanying drawings.

[0050] According to some embodiments of this application, please refer to Figure 1 and Figure 2 , Figure 1 This application provides structural schematic diagrams of a battery cell detection device 100 for some embodiments. Figure 2 This application provides a front view of a battery cell detection device 100 according to some embodiments. The battery cell detection device 100 includes a base 10, an adjustment mechanism 20, and multiple probe assemblies. The multiple probe assemblies are spaced apart on the base 10 along a first direction X. The probe assemblies are used to detect battery cells. The multiple probe assemblies include multiple first probe assemblies 30 and multiple second probe assemblies 40. The first probe assemblies 30 are fixedly connected to the base 10, and the second probe assemblies 40 are movably disposed on the base 10 along a second direction Y, which is perpendicular to the first direction X. At least one second probe assembly 40 is disposed between every two adjacent first probe assemblies 30. The adjustment mechanism 20 is driveably connected to the second probe assemblies 40 and is used to drive the multiple second probe assemblies 40 to move synchronously along the second direction Y to adjust the height position of the second probe assemblies 40.

[0051] The base 10 is a plate-like structure extending along a first direction X, and the second direction Y is the thickness direction of the base 10. The base 10 is used for mounting on a formation and capacity testing device. The probe assembly is used to probe individual battery cells to detect the quality of the battery cell formation and capacity testing. The specific structure of the probe assembly can be found in related technologies and will not be described in detail here.

[0052] For example, a second probe assembly 40 is disposed between every two adjacent first probe assemblies 30.

[0053] For example, the first direction X is typically horizontal, and the second direction Y is typically vertical.

[0054] It should be noted that the adjustment mechanism 20 is used to drive multiple second probe assemblies 40 to move synchronously in the second direction Y, so as to adjust the height difference between the second probe assembly 40 and the first probe assembly 30 in the second direction Y. That is, when the adjustment mechanism 20 drives the second probe assembly 40 to move to the same height position as the first probe assembly 30 in the second direction Y, both the second probe assembly 40 and the first probe assembly 30 can be used to detect battery cells, and the second probe assembly 40 is in the working position at this time; when the adjustment mechanism 20 drives the second probe assembly 40 to move to a height position higher than the first probe assembly 30 in the second direction Y, the second probe assembly 40 cannot be used to detect battery cells, and the second probe assembly 40 is in the idle position at this time, thereby realizing the transformation of the battery cell detection device 100 to suit different working conditions.

[0055] The adjustment mechanism 20 can synchronously drive multiple second probe assemblies 40 to move relative to the base 10 along the second direction Y, thereby simultaneously adjusting the height of the second probe assemblies 40 in the second direction Y. This allows the second probe assemblies 40 to be aligned or staggered with the first probe assembly 30 in the second direction Y. This enables rapid reconfiguration of the battery cell detection device 100 when the number of battery cells to be detected changes, adjusting the number of probe assemblies used for detecting battery cells. The battery cell detection device 100 with this structure requires less operation time during reconfiguration and is easy to operate, effectively improving the detection efficiency of battery cells and thus contributing to increased battery cell production efficiency. Furthermore, the adjustment mechanism 20 enables one-button reconfiguration of the battery cell detection device 100, simplifying operation and eliminating the need for disassembly, rewiring, or recalibration of the second probe assemblies 40. This reduces the impact on the current accuracy of the battery cell detection device 100.

[0056] Based on some embodiments of this application, please continue to refer to Figure 1 and Figure 2 As shown, the adjustment mechanism 20 includes an adjustment rod 21 and a plurality of first transmission components 22. The adjustment rod 21 extends along a first direction X and is rotatably disposed on the base 10. The adjustment rod 21 is transmissionally connected to each second probe assembly 40 through a first transmission component 22. The adjustment rod 21 is configured to drive the plurality of second probe assemblies 40 to move synchronously along a second direction Y when it rotates relative to the base 10.

[0057] Optionally, the adjusting rod 21 extends along the first direction X and is rotatably mounted on the base 10 about its axis, so that when the adjusting rod 21 rotates, it can drive the second probe assembly 40 to move in the second direction Y through the transmission of the first transmission assembly 22. In other embodiments, the adjusting mechanism 20 may also have other structures, such as the adjusting rod 21 being movably mounted on the base 10 along the second direction Y, and the adjusting rod 21 being connected to the second probe assembly 40 through the first transmission assembly 22, so that when the adjusting rod 21 moves relative to the base 10 in the second direction Y, it can drive multiple second probe assemblies 40 to move synchronously in the second direction Y.

[0058] For example, the base 10 is provided with a plurality of mounting blocks 11, which are arranged at intervals along the first direction X on the base 10. The mounting blocks 11 are provided with mounting holes for the adjustment rod 21 to pass through, so that the adjustment rod 21 can be rotatably mounted on the base 10 about the axis arranged along the first direction X.

[0059] The adjusting rod 21 is rotatably mounted on the base 10 about an axis arranged along the first direction X. Rotating the adjusting rod 21 allows multiple second probe assemblies 40 to be moved simultaneously along the second direction Y. This simple structure reduces the space occupied and range of motion of the adjusting rod 21. Furthermore, the adjusting rod 21 is connected to the corresponding second probe assembly 40 via a first transmission assembly 22. This allows the force exerted by the adjusting rod 21 on the second probe assembly 40, the direction of the force, and the range of motion of the second probe assembly 40 to be easily adjusted via the first transmission assembly 22 to meet different operational requirements.

[0060] According to some embodiments of this application, please refer to Figure 3 , Figure 4 and Figure 5 , Figure 3 for Figure 1 A partial enlarged view of point A on the battery cell detection device 100 shown. Figure 4 This is a schematic diagram of the structure of the first transmission component 22 provided in some embodiments of this application. Figure 5 This is a cross-sectional view of a first transmission assembly 22 provided in some embodiments of this application. The first transmission assembly 22 includes a first movable seat 221 and a rotating seat 222. The first movable seat 221 is movably disposed on the base 10 along a second direction Y and is connected to the second probe assembly 40. The rotating seat 222 is circumferentially rotatable and axially locked on the base 10. The rotation axis of the rotating seat 222 is arranged along the second direction Y. The rotating seat 222 is threadedly engaged with the first movable seat 221. The rotating seat 222 is drively connected to an adjusting rod 21, which drives the rotating seat 222 to rotate relative to the base 10.

[0061] The rotating seat 222 is rotatably mounted on the base 10 and axially locked, meaning that the rotating seat 222 can rotate relative to the base 10 about an axis arranged along the second direction Y, but cannot move relative to the base 10 along the second direction Y.

[0062] Optionally, the base 10 has a first through hole for mounting the rotating seat 222. The first through hole passes through both sides of the base 10 in the second direction Y. The rotating seat 222 is inserted into the first through hole, and a bearing is provided between the rotating seat 222 and the hole wall of the first through hole so that the rotating seat 222 can rotate relative to the base 10 in the first through hole.

[0063] The rotating seat 222 is threadedly engaged with the first moving seat 221, meaning that both the rotating seat 222 and the first moving seat 221 are provided with threads. The rotating seat 222 and the first moving seat 221 are connected by threaded engagement, thereby forming a screw and screw sleeve structure.

[0064] For example, the rotating seat 222 is sleeved on the outer periphery of the first movable seat 221. The inner peripheral wall of the rotating seat 222 is provided with a first internal thread 2221, and the outer peripheral side of the first movable seat 221 is provided with a first external thread 2211. The first external thread 2211 is screwed into the first internal thread 2221, so that when the rotating seat 222 rotates relative to the base 10 about an axis arranged along the second direction Y, it can drive the first movable seat 221 to move in the second direction Y. Of course, in other embodiments, the first movable seat 221 can also be sleeved on the outer periphery of the rotating seat 222, and the first movable seat 221 and the rotating seat 222 can be connected by threads.

[0065] It should be noted that in other embodiments, the first transmission component 22 may also be of other structures. For example, the first transmission component 22 includes a gear and a rack. The gear is sleeved on the outer periphery of the adjusting rod 21, and the rack is arranged along the second direction Y and movably disposed on the base 10 along the second direction Y. The rack is connected to the second probe component 40 and meshes with the gear, so that when the adjusting rod 21 drives the gear to rotate, it can drive the rack to move in the second direction Y, thereby realizing that the second probe component 40 moves relative to the base 10 in the second direction Y.

[0066] By threading the rotating seat 222 with the first moving seat 221, the adjusting rod 21 can drive the first moving seat 221 to move relative to the base 10 in the second direction Y when driving the rotating seat 222 to rotate relative to the base 10. This enables the second probe assembly 40 to move in the second direction Y. The first transmission assembly 22 with this structure is simple in structure, easy to implement, and has high stability. On the other hand, it enables the first moving seat 221 to have a certain self-locking function relative to the rotating seat 222, so as to reduce the phenomenon of the first moving seat 221 moving relative to the base 10 in the second direction Y. This ensures the stability of the second probe assembly 40 in detecting battery cells during the process of the battery cell detection device 100 detecting battery cells.

[0067] According to some embodiments of this application, please continue to refer to Figure 3 , Figure 4 and Figure 5 The first transmission assembly 22 also includes two bevel gears 223. The two bevel gears 223 mesh with each other, one of which is connected to the adjusting rod 21 and the other is connected to the rotating seat 222. The adjusting rod 21 and the rotating seat 222 are connected by transmission through the two bevel gears 223.

[0068] In this configuration, the rotation axes of the two bevel gears 223 are perpendicular to each other. One bevel gear 223 has its rotation axis arranged along a first direction X, while the other bevel gear 223 has its rotation axis arranged along a second direction Y. The bevel gear 223 with its rotation axis arranged along the first direction X is sleeved on the outer periphery of the adjusting rod 21, and the bevel gear 223 with its rotation axis arranged along the second direction Y is connected to one end of the rotating seat 222 in the second direction Y. Exemplarily, the bevel gear 223 with its rotation axis arranged along the second direction Y and the rotating seat 222 are integrally formed. In other embodiments, the bevel gear 223 with its rotation axis arranged along the second direction Y and the rotating seat 222 can also be separate structures, with the bevel gear 223 connected to the rotating seat 222 by bolting, bonding, or snap-fitting.

[0069] By setting two bevel gears 223 between the adjusting rod 21 and the rotating seat 222, the two bevel gears 223 mesh with each other and are respectively connected to the adjusting rod 21 and the rotating seat 222, so that when the adjusting rod 21 rotates about the axis arranged along the first direction X, it can drive the rotating seat 222 to rotate about the axis arranged along the second direction Y through the two bevel gears 223, thereby realizing the transmission connection between the adjusting rod 21 and the rotating seat 222.

[0070] According to some embodiments of this application, please refer to Figure 5As shown, the first movable seat 221 is provided with a limiting through hole 2212 through which the adjusting rod 21 passes. The limiting through hole 2212 is used to limit the movement range of the first movable seat 221 in the second direction Y.

[0071] The limiting through hole 2212 penetrates both sides of the first movable seat 221 in the first direction X. The limiting through hole 2212 has a first end wall 2212a and a second end wall 2212b in the second direction Y. Both the first end wall 2212a and the second end wall 2212b are used to allow the adjusting rod 21 to abut against when the first movable seat 221 moves in the second direction Y, so as to limit the movement range of the first movable seat 221 in the second direction Y. When the adjusting rod 21 abuts against the first end wall 2212a, the second probe assembly 40 is in the working position; when the adjusting rod 21 abuts against the second end wall 2212b, the second probe assembly 40 is in the idle position.

[0072] For example, in Figure 5 In this embodiment, the limiting through hole 2212 is a strip-shaped hole arranged along the second direction Y. In other embodiments, the limiting through hole 2212 may also be a rectangular hole or a diamond-shaped hole, etc.

[0073] By providing a limiting through hole 2212 on the first movable seat 221 for the adjusting rod 21 to pass through, the first movable seat 221 can be restricted by the adjusting rod 21 when it moves in the second direction Y, thereby realizing the limiting function of the first movable seat 221 moving in the second direction Y, which is conducive to controlling the movement stroke of the first movable seat 221 in the second direction Y, and facilitating operation and stable control.

[0074] According to some embodiments of this application, please refer to Figure 1 and Figure 2 As shown, the plurality of probe assemblies also includes a plurality of third probe assemblies 50. The third probe assemblies 50 are movably disposed on the base 10 along the first direction X, and at least one third probe assembly 50 is disposed between every two adjacent first probe assemblies 30. An adjustment mechanism 20 is drively connected to the third probe assemblies 50, and the adjustment mechanism 20 is used to drive the plurality of third probe assemblies 50 to move synchronously along the first direction X, thereby adjusting the position of the third probe assemblies 50 in the first direction X.

[0075] Multiple third probe assemblies 50 are spaced apart on the base 10 along the first direction X. By adjusting the assembly, the multiple third probe assemblies 50 can be driven to move synchronously along the first direction X, so as to adjust the position of the third probe assemblies 50 in the first direction X at the same time. This facilitates the rapid replacement of the battery cell detection device 100 when the position of the battery cell to be detected changes, thereby effectively shortening the operation time required for the battery cell detection device 100 to be replaced.

[0076] According to some embodiments of this application, please refer to Figure 2 Please refer to further details. Figure 6 , Figure 6 This is a schematic diagram of the modified structure of the battery cell detection device 100 provided in some embodiments of this application. Between each pair of adjacent first probe components 30, there is one second probe component 40 and two third probe components 50. The two third probe components 50 are located on both sides of the second probe component 40 in the first direction X. An adjustment mechanism 20 is used to drive the plurality of second probe components 40 and the plurality of third probe components 50 to move synchronously. When the second probe component 40 rises along the second direction Y, the two third probe components 50 adjacent to the second probe component 40 move closer to each other in the first direction X.

[0077] It should be noted that the adjusting mechanism 20 can drive the third probe assembly 50 to move in the first direction X while simultaneously driving the second probe assembly 40 to move in the second direction Y. For example, in... Figure 2 In the process of upgrading the battery cell detection device 100, the first probe assembly 30, the second probe assembly 40, and the third probe assembly 50 are all at the same height in the second direction Y, thus enabling all three components to be used for detecting battery cells. Figure 6 In the process, when the adjustment mechanism 20 drives the second probe assembly 40 to rise relative to the base 10 along the second direction Y, that is, when the second probe assembly 40 moves from the working position to the idle position, the two adjacent third probe assemblies 50 of each second probe assembly 40 can move in the first direction X under the drive of the adjustment mechanism 20, thereby getting closer to each other and making the first probe assembly 30 and the third probe assembly 50 at the same height in the second direction Y have the same spacing in the first direction X. Thus, the battery cell is detected only through the first probe assembly 30 and the third probe assembly 50, thereby realizing the transformation of the battery cell detection device 100.

[0078] By providing a third probe assembly 50 on each side of each second probe assembly 40 in the first direction X, and by having the adjustment mechanism 20 synchronously drive the second probe assembly 40 and the third probe assembly 50 to move, the adjustment mechanism 20 can simultaneously drive the two third probe assemblies 50 adjacent to the second probe assembly 40 to move closer or further away from each other when driving the second probe assembly 40 to rise or fall in the second direction Y. This achieves a change in position of multiple probe assemblies of the battery cell detection device 100 while reducing the number of probe assemblies. The battery cell detection device 100 with this structure can effectively ensure that the spacing between the remaining multiple probe assemblies is the same after some probe assemblies are reduced, thereby meeting the detection requirements of the battery cell, and thus eliminating the need to reduce the probe assemblies at equal intervals to ensure that the spacing between the reduced multiple probe assemblies is the same.

[0079] Based on some embodiments of this application, please continue to refer to Figure 6 The adjustment mechanism 20 includes an adjustment rod 21 and a plurality of second transmission components 23. The adjustment rod 21 extends along a first direction X and is rotatably disposed on the base 10. The adjustment rod 21 is drively connected to each third probe assembly 50 through a second transmission component 23. The adjustment rod 21 is configured to drive the plurality of third probe assemblies 50 to move synchronously along the first direction X when it rotates relative to the base 10.

[0080] The adjusting rod 21 is connected to both the first transmission component 22 and the second transmission component 23, so that the second probe component 40 and the third probe component 50 can be moved synchronously at the same time through the adjusting rod 21.

[0081] Each third probe assembly 50 is connected to the adjusting rod 21 via a second transmission assembly 23, so that when the adjusting rod 21 rotates, it can synchronously drive multiple third probe assemblies 50 to move along the first direction X. The adjusting mechanism 20 with this structure makes it easy to adjust the force exerted by the adjusting rod 21 on the third probe assembly 50, the direction of the force, and the range of movement of the third probe assembly 50 via the second transmission assembly 23 to meet different operational requirements.

[0082] According to some embodiments of this application, please refer to Figure 7 and Figure 8 , Figure 7 This is a schematic diagram of the structure of the second transmission component 23 provided in some embodiments of this application. Figure 8 This is a cross-sectional view of a second transmission assembly 23 provided in some embodiments of this application. The second transmission assembly 23 includes a second movable seat 231, which is movably disposed on the base 10 along a first direction X. The second movable seat 231 is connected to a third probe assembly 50, and the second movable seat 231 is threadedly engaged with an adjusting rod 21.

[0083] The second movable seat 231 is threadedly engaged with the adjusting rod 21, meaning that both the second movable seat 231 and the adjusting rod 21 are threaded. The second movable seat 231 and the adjusting rod 21 are connected by threaded engagement, thus forming a screw and screw sleeve structure.

[0084] Optionally, the second transmission assembly 23 may further include a rotating member 232, which is fixedly sleeved on the outer periphery of the adjusting rod 21. The adjusting rod 21 is threadedly connected to the second movable seat 231 through the rotating member 232 for ease of manufacturing and assembly. For example, the second movable seat 231 is sleeved on the outer periphery of the rotating member 232. A second internal thread 2311 is provided on the inner periphery of the second movable seat 231, and a second external thread 2321 is provided on the outer periphery of the rotating member 232. The second external thread 2321 is screwed onto the second internal thread 2311, so that when the adjusting rod 21 drives the rotating member 232 to rotate, it can drive the second movable seat 231 to move relative to the base 10 in the first direction X. In other embodiments, the second transmission member may not have a rotating member 232. The second moving seat 231 is directly sleeved on the outer periphery of the adjusting rod 21. The outer periphery of the adjusting rod 21 is provided with a second external thread 2321, so that it can be threadedly engaged with the second internal thread 2311 provided on the inner periphery of the second moving seat 231.

[0085] Of course, the structure of the second transmission assembly 23 is not limited to this. In other embodiments, the second transmission assembly 23 can also have other structures. For example, the second transmission assembly 23 includes a worm gear and a worm that mesh with each other. The worm gear is fixedly sleeved on the outer periphery of the adjusting rod 21, and the worm is connected to the third probe assembly 50. The worm is movably disposed on the base 10 along the first direction X and arranged along the first direction X so that when the adjusting rod 21 drives the worm gear to rotate, it can drive the worm to move relative to the base 10 along the first direction X, thereby driving the third probe assembly 50 to move relative to the base 10 in the first direction X.

[0086] Optionally, the base 10 has a second through hole through which the second movable seat 231 passes. The second through hole extends through both sides of the base 10 in the second direction Y. The second through hole is a rectangular hole arranged along the first direction X. The second movable seat 231 is movably inserted into the second through hole along the first direction X. Both sides of the second movable seat 231 have movable grooves 2312 for the hole walls of the second through hole to engage. The movable grooves 2312 extend along the first direction X. That is, the second movable seat 231 is movably inserted into the second through hole along the first direction X, and at least a portion of the base 10 is inserted into the movable grooves 2312 of the second movable seat 231. This provides guidance and support for the second movable seat 231, thereby improving the moving stability of the second movable seat 231.

[0087] The transmission assembly includes a second movable seat 231 movably mounted on the base 10 along the first direction X. The second movable seat 231 is connected to the third probe assembly 50. By threading an adjusting rod 21 to the second movable seat 231, the adjusting rod 21 can drive the second movable seat 231 to move relative to the base 10 in the first direction X when rotating relative to the base 10 about an axis arranged along the first direction X. This structure is simple, easy to implement, and highly stable. Furthermore, this structure enables the transmission connection between the adjusting rod 21 and the second movable seat 231, giving the second movable seat 231 a certain self-locking function relative to the adjusting rod 21. This effectively reduces the phenomenon of the second movable seat 231 shifting relative to the base 10 in the first direction X, thereby improving the stability and accuracy of the third probe assembly 50 when probing individual battery cells.

[0088] According to some embodiments of this application, this application also provides a formation and capacity testing device, including the battery cell detection device 100 of any of the above embodiments.

[0089] According to some embodiments of this application, see Figures 2-7As shown, this application provides a battery cell detection device 100, which includes a base 10, an adjustment mechanism 20, and multiple probe assemblies. The multiple probe assemblies are arranged at intervals along a first direction X on the base 10. The multiple probe assemblies include multiple first probe assemblies 30, multiple second probe assemblies 40, and multiple third probe assemblies 50. The first probe assemblies 30 are fixedly connected to the base 10. A second probe assembly 40 is disposed between every two adjacent first probe assemblies 30. The second probe assemblies 40 are movably disposed on the base 10 along a second direction Y. A third probe assembly 50 is disposed on each side of each second probe assembly 40 in the first direction X. The third probe assemblies 50 are movably disposed on the base 10 along the first direction X, which is perpendicular to the second direction Y. The adjustment mechanism 20 is used to synchronously drive the multiple second probe assemblies 40 and the multiple third probe assemblies 50 to move, so that when a second probe assembly 40 rises in the second direction Y, its two adjacent third probe assemblies 50 move closer to each other along the first direction X. The adjustment assembly includes an adjustment rod 21, multiple first transmission assemblies 22, and multiple second transmission assemblies 23. The adjustment rod 21 is rotatably mounted on the base 10 along an axis arranged in the first direction X. The first transmission assembly 22 includes a first movable seat 221, a rotating seat 222, and two bevel gears 223. The first movable seat 221 is connected to the second probe assembly 40 and is movably mounted on the base 10 along the second direction Y. The rotating seat 222 is sleeved on the outside of the first movable seat 221 and threadedly engaged with it. The two bevel gears 223 are mutually... The first moving seat 221 is engaged with and respectively connected to the rotating seat 222 and the adjusting rod 21, so that when the adjusting rod 21 rotates, it can drive the first moving seat 221 to move in the second direction Y. The second transmission assembly 23 includes a second moving seat 231 and a rotating member 232. The second moving seat 231 is connected to the third probe assembly 50 and is movably disposed on the base 10 along the first direction X. The rotating member 232 is fixedly sleeved on the outer periphery of the adjusting rod 21 and threadedly engaged with the second moving seat 231, so that when the adjusting rod 21 rotates, it can drive the second moving seat 231 to move in the first direction X.

[0090] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0091] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery cell detection device, characterized by, The utility model relates to a battery cell testing device, including: a base; a plurality of probe assemblies are spaced apart along a first direction on the base, the probe assemblies are used to detect the battery cell, the plurality of probe assemblies include: a plurality of first probe assemblies are fixedly connected to the base; a plurality of second probe assemblies are movably arranged along a second direction on the base, the second direction is perpendicular to the first direction, at least one second probe assembly is arranged between every adjacent two first probe assemblies; an adjusting mechanism is drivingly connected with the second probe assemblies, the adjusting mechanism is used to drive the plurality of second probe assemblies to move synchronously along the second direction to adjust the height position of the second probe assemblies; the adjusting mechanism includes an adjusting rod and a plurality of first transmission assemblies, the adjusting rod extends along the first direction and is rotatably arranged on the base, the adjusting rod is drivingly connected with each second probe assembly through a first transmission assembly, and the adjusting rod is configured to drive the plurality of second probe assemblies to move synchronously along the second direction when the adjusting rod rotates relative to the base; the first transmission assembly includes a first moving seat and a rotating seat, the first moving seat is movably arranged along the second direction on the base, the first moving seat is connected to the second probe assembly, the rotating seat is circumferentially rotatable and axially locked on the base, the rotating axis of the rotating seat is arranged along the second direction, the rotating seat is screw-threadedly matched with the first moving seat, and the rotating seat is drivingly connected with the adjusting rod, and the adjusting rod is used to drive the rotating seat to rotate relative to the base.

2. The battery cell detection apparatus according to claim 1, characterized by the first transmission assembly further includes two bevel gears; two bevel gears are meshed with each other, one of the two bevel gears is connected to the adjusting rod, and the other is connected to the rotating seat, and the adjusting rod and the rotating seat are drivingly connected through the two bevel gears.

3. The battery cell probe apparatus of claim 1, wherein a limiting through hole is arranged on the first moving seat for the adjusting rod to pass through; the limiting through hole is used to limit the movement range of the first moving seat in the second direction.

4. The battery cell probing apparatus of claim 1, wherein the plurality of probe assemblies further include a plurality of third probe assemblies; the third probe assemblies are movably arranged along the first direction on the base, and at least one third probe assembly is arranged between every adjacent two first probe assemblies; the adjusting mechanism is drivingly connected with the third probe assemblies, and the adjusting mechanism is used to drive the plurality of third probe assemblies to move synchronously along the first direction to adjust the position of the third probe assemblies in the first direction.

5. The battery cell probing apparatus of claim 4, wherein one second probe assembly and two third probe assemblies are arranged between every adjacent two first probe assemblies, and the two third probe assemblies are arranged on both sides of the second probe assembly in the first direction; the adjusting mechanism is used to drive the plurality of second probe assemblies and the plurality of third probe assemblies to move synchronously, and when the second probe assemblies are raised along the second direction, the two third probe assemblies adjacent to the second probe assemblies are close to each other in the first direction.

6. The battery cell probing apparatus of claim 4, wherein The adjusting mechanism comprises an adjusting rod and a plurality of second transmission assemblies; The adjusting rod is arranged rotatably on the base and is connected to each of the third probe assemblies through one of the second transmission assemblies, and the adjusting rod is configured to drive the third probe assemblies to move synchronously along the first direction when the adjusting rod rotates relative to the base.

7. The battery cell probing apparatus of claim 6, wherein The second transmission assembly comprises a second moving seat; The second moving seat is movably arranged on the base along the first direction, and the second moving seat is connected to the third probe assembly and is threadedly engaged with the adjusting rod.

8. A formation and dispensing apparatus, characterized by, A battery cell detection device comprising the battery cell detection device according to any one of claims 1-7.

Images