A battery formation and sorting device

Abstract

A battery formation and component distribution device comprises a bearing mechanism, two probe modules, a spacing adjustment mechanism, a lifting mechanism, a translation mechanism and a variable distance adjustment mechanism. The spacing adjustment mechanism can synchronously drive the two probe modules to move towards or away from each other to adjust the distance between the two probe modules to adapt to different lengths of battery models. The lifting mechanism can adjust the vertical position of the probe module to adapt to different heights of battery models. The translation mechanism can adjust the movement of the probe module in a first direction to make the probe module press the positive and negative poles of the battery to be tested. The variable distance adjustment mechanism can adjust the position of the probe assembly and the distance between adjacent probe assemblies to adapt to different battery thicknesses and thus adapt to different battery tray channel numbers. Through the cooperation of the above mechanisms, different battery models can be finally compatible, the adjustment is convenient, and the production efficiency is improved.

Description

Technical Field Technical Field

[0002] This invention relates to the field of battery formation and capacity testing equipment, and more specifically to a battery formation and capacity testing equipment. Background Technology

[0003] Currently, the booming development of the new energy industry has given rise to a large number of lithium batteries of different specifications and models. For manufacturers of medium, large and extra-large square aluminum-cased lithium batteries, it is very economically beneficial to quickly and efficiently change equipment production conditions to match the production and testing of lithium batteries of different specifications and sizes.

[0004] As battery models increase and are upgraded, battery specifications also change, meaning existing formation and capacity testing equipment needs to be replaced or adjusted accordingly. Replacing or modifying such equipment is time-consuming and labor-intensive, so compatibility should be a primary consideration during equipment selection. Existing equipment probes are only designed for one battery specification and cannot be flexibly adjusted or changed based on battery length, height, or width. This makes equipment modifications or adjustments time-consuming and labor-intensive, delaying production and unable to accommodate multiple battery specifications and models. Summary of the Invention

[0005] This invention provides a battery formation and capacity testing device that can be matched with any type of battery, solving the technical problems of incompatibility with different specifications and low production efficiency.

[0006] In one embodiment, this application provides a battery formation and capacity testing device, comprising:

[0007] A support mechanism for supporting the battery to be tested;

[0008] Two probe modules are located on opposite sides of the support mechanism along a first direction, and each probe module includes multiple probe assemblies.

[0009] A spacing adjustment mechanism is provided, which is used to synchronously drive the two probe modules to move towards or away from each other along a first direction in order to adjust the distance between the two probe modules.

[0010] A lifting mechanism is provided for adjusting the position of the probe module in the vertical direction.

[0011] A translation mechanism is provided, wherein the translation is used to adjust the probe module to move along a first direction so that the probe module is pressed against the positive and negative terminals of the battery under test;

[0012] A pitch adjustment mechanism includes a pitch base and a pitch drive assembly. The pitch base has a mounting portion extending along a second direction, which is perpendicular to both the first direction and the vertical direction. A plurality of probe assemblies are movably disposed on the mounting portion, which has a used portion and an unused portion. The pitch drive assembly is disposed on the pitch base and connected to the probe assemblies, driving the probe assemblies to move on the mounting portion, thereby moving the probe assemblies between the used and unused portions of the mounting portion and changing the distance between adjacent probe assemblies located in the used portion.

[0013] In one embodiment, the variable pitch drive assembly includes a variable pitch shaft, which is arranged parallel to the mounting portion and connected to the probe assembly. When the variable pitch shaft rotates, it drives the probe assembly to move along the axis of the variable pitch shaft.

[0014] In one embodiment, the variable pitch shaft is provided with a plurality of threaded grooves with different slopes along the axial direction, and the probe assembly includes a mounting base, the mounting base having a mating groove, the mating groove having a protrusion, and the protrusion being slidably connected to the threaded groove.

[0015] In one embodiment, the used portion and the unused portion of the mounting part are distributed along the axial direction of the pitch shaft; the slope of the plurality of threaded grooves gradually decreases from the used portion to the unused portion, and the pitch difference between two adjacent threaded grooves is equal.

[0016] In one embodiment, the variable pitch drive assembly further includes a drive handwheel and a variable pitch gear set, wherein the drive handwheel is connected to the variable pitch shaft via the variable pitch gear set to drive the variable pitch shaft to rotate.

[0017] In one embodiment, a pushing mechanism is further included, the pushing mechanism comprising a pushing base, a pushing plate, and a pushing drive device, the pushing plate being disposed opposite to the probe assembly located in the use portion, and the pushing drive device being disposed on the pushing base and connected to the pushing plate;

[0018] The probe assembly further includes a movable mounting base, a probe, an elastic element, and a limiting block. The mounting base is movably disposed on the mounting part and has a sliding track on it. The sliding track is arranged along a first direction. The limiting block is disposed at one end of the sliding track. The movable mounting base is slidably disposed on the mounting base and is connected to the limiting block through the elastic element. The probe is disposed on the movable mounting base. The pushing drive device drives the pushing plate to move along the first direction to push the movable mounting base to move along the sliding track along the first direction, so that the probe moves along the first direction to press against the positive and negative electrodes of the battery under test.

[0019] In one embodiment, the pushing drive device includes a first pushing track extending along a second direction on the pushing base, a limiting plate on the first pushing track, and a moving member connected to the pushing plate. The limiting plate is provided with a moving groove inclined along the second direction, and the moving member is slidably disposed in the moving groove. In the pushing posture, the limiting plate moves along the second direction on the first pushing track, and the moving member moves along the moving groove, thereby converting the movement of the limiting plate along the second direction into movement along the first direction.

[0020] In one embodiment, the spacing adjustment mechanism includes a drive mechanism, a transmission shaft, a transmission gear set, a first transmission rod, and a second transmission rod. The first and second transmission rods are respectively connected to the two probe modules and are symmetrically arranged along the axis of the transmission shaft. The first and second transmission rods have threads with different directions of rotation. The transmission gear set is located at one end of the first transmission rod, the second transmission rod, and the transmission shaft, and meshes with each other. The drive mechanism is used to drive the transmission shaft to rotate around its own axis and drive the first and second transmission rods to rotate through the transmission gear set, so as to synchronously drive the two probe modules to move towards or in opposite directions along a first direction.

[0021] In one embodiment, the lifting mechanism includes a lifting drive device connected to the probe module for driving the probe module to move up and down in the vertical direction.

[0022] In one embodiment, the translation mechanism includes a translation drive device connected to the probe module to drive the probe module to move along a first direction.

[0023] According to the battery formation and capacity testing equipment described in the above embodiments, a spacing adjustment mechanism can synchronously drive two probe modules to move towards or away from each other to adjust the distance between the two probe modules to accommodate battery models of different lengths. A lifting mechanism can adjust the vertical position of the probe modules to accommodate battery models of different heights. A translation mechanism can adjust the probe modules to move along a first direction, causing the probe assembly to move closer to the battery under test, so that the probe module is pressed against the positive and negative terminals of the battery under test. A variable-pitch adjustment mechanism can adjust the position of the probe assembly and the spacing between adjacent probe assemblies to accommodate different battery thicknesses, thereby accommodating battery trays with different channel numbers. Through the cooperation of these multiple mechanisms, it can ultimately be compatible with different battery models, is easy to adjust, and improves production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a chemical composition and capacity device in one embodiment;

[0025] Figure 2 This is a schematic diagram of the spacing adjustment mechanism in one embodiment;

[0026] Figure 3 This is a schematic diagram of the transmission gear set in one embodiment;

[0027] Figure 4 This is a schematic diagram of the combined structure of various mechanisms in one embodiment;

[0028] Figure 5 This is a schematic diagram of the lifting mechanism in one embodiment;

[0029] Figure 6 This is a schematic diagram of the lifting mechanism from another angle in one embodiment;

[0030] Figure 7 This is a schematic diagram of the translation mechanism in one embodiment;

[0031] Figure 8 This is a schematic diagram of the probe module structure in one embodiment;

[0032] Figure 9 This is a schematic diagram of the pushing mechanism in one embodiment;

[0033] Figure 10 This is a schematic diagram of the probe assembly in one embodiment;

[0034] Figure 11 This is a schematic diagram of the external structure of an integrated water-cooled formation and capacity-dispensing device in one embodiment;

[0035] Figure 12 This is a schematic diagram of the internal structure of an integrated water-cooled formation and capacity-dispensing device in one embodiment;

[0036] in:

[0037] 100. Rack;

[0038] 110. Bearing housing; 120. Guide rail; 130. Guide slider; 140. Scale; 150. Pointer;

[0039] 200. Probe module;

[0040] 211. Mounting base; 2111. Mating groove; 2112. Protrusion; 2113. Guide groove; 212. Movable mounting base; 213. Probe; 214. Elastic element; 215. Limiting block; 216. Sliding rail.

[0041] 300. Spacing adjustment mechanism;

[0042] 310. Drive mechanism; 320. Drive shaft; 330. Drive gear set; 331. First drive gear; 332. Second drive gear; 333. Third drive gear; 340. First drive rod; 350. Second drive rod.

[0043] 400. Lifting mechanism;

[0044] 410. Lifting base plate; 420. Lifting drive device; 421. Lifting drive handwheel; 422. Lifting shaft; 423. Lifting screw; 424. First synchronous pulley; 425. Second synchronous pulley; 426. Synchronous belt; 430. Guide bearing; 440. Support base; 450. Support bearing; 460. Sliding guide rail.

[0045] 500. Translation mechanism;

[0046] 510. Translation drive device; 520. Translation base plate; 530. Translation slide rail; 540. Translation slider; 550. Guide shaft;

[0047] 600. Pitch adjustment mechanism;

[0048] 610, Pitch-changing shaft; 620, Guide rod; 630, Drive handwheel; 640, Pitch-changing gear set; 650, Mounting plate; 660, Rotary bearing;

[0049] 700. Bearing mechanism;

[0050] 800. Pushing mechanism;

[0051] 810. Push base; 820. Push plate; 830. Push drive device; 831. First push track; 832. Limiting plate; 833. Moving part; 834. Moving groove; 835. Push handle; 836. Second push track.

[0052] 900. Power supply components;

[0053] 1000. Cabinet;

[0054] 1001 Electrical power distribution module; 1002 Charging and discharging power supply module; 1003 Water cooling heat dissipation module. Detailed Implementation

[0055] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments. Similar elements in different embodiments are referred to by related similar element reference numerals. In the following embodiments, many details are described to facilitate a better understanding of the present application. However, those skilled in the art will readily recognize that some features may be omitted in different situations, or may be replaced by other elements, materials, or methods. In some cases, certain operations related to the present application are not shown or described in the specification. This is to avoid obscuring the core parts of the present application with excessive description. For those skilled in the art, detailed description of these related operations is not necessary; they can fully understand the related operations based on the description in the specification and general technical knowledge in the art.

[0056] Furthermore, the features, operations, or characteristics described in the specification can be combined in any suitable manner to form various embodiments, and the operational steps involved in each embodiment can also be rearranged or adjusted in a manner that is obvious to those skilled in the art. Therefore, the specification and drawings are only for clearly describing a particular embodiment and do not imply that they represent the necessary components and / or order.

[0057] The serial numbers assigned to components in this document, such as "first" and "second," are used only to distinguish the described objects and have no sequential or technical meaning. The terms "connection" and "linkage" used in this application, unless otherwise specified, include both direct and indirect connections (linkages). Example 1

[0058] This embodiment provides a battery formation and capacity testing device (bed of needles), which can be used for the formation and capacity testing of different types of batteries.

[0059] It should be noted that the length, width and height of batteries may vary for different models. The width will affect the number of channels in the battery tray and the spacing between the positive or negative terminals of two adjacent batteries. The wider the width, the fewer the number of channels and the larger the spacing. The length will affect the distance between the positive and negative terminals of the battery, and the height will affect the vertical position of the positive or negative terminals.

[0060] refer to Figure 1 The formulation and capacity testing equipment includes a frame 100, two probe modules 200, a spacing adjustment mechanism 300, a lifting mechanism 400, a translation mechanism 500, a variable spacing adjustment mechanism 600, and a bearing mechanism 700. These are described in detail below.

[0061] The frame 100 serves as a support structure, and the support mechanism 700 supports the batteries to be tested. The support mechanism 700 includes multiple support columns, fixing pins mounted on the support columns, and a battery tray. The battery tray contains multiple batteries to be tested. The support columns are respectively mounted on two probe modules 200. The two probe modules 200 are mounted on the frame 100 and are located on opposite sides of the support mechanism 700 along a first direction. The spacing adjustment mechanism 300 is connected to the probe modules 200 and is used to synchronously drive the two probe modules 200 to move towards or away from each other to adjust the distance between the two probe modules 200 to accommodate batteries of different lengths. At the same time, it synchronously adjusts the distance between the support columns to match the battery tray so as to support and fix the battery tray.

[0062] The lifting mechanism 400 is used to adjust the vertical position of the probe module 200 to accommodate batteries of different heights.

[0063] The translation mechanism 500 is used to adjust the probe module 200 to move along a first direction on a horizontal plane so that the probe module 200 is pressed against the positive and negative terminals of the battery under test. The probe module 200 includes multiple probe assemblies, each probe assembly having a contact end for correspondingly pressing against the positive and negative terminals of the multiple batteries under test.

[0064] The pitch adjustment mechanism 600 includes a pitch base and a pitch drive assembly. The pitch base has a mounting portion extending along a second direction, which is perpendicular to the first direction and the vertical direction. A plurality of probe assemblies are movably disposed on the mounting portion, which has a used portion and an unused portion. The pitch drive assembly is disposed on the pitch base and connected to the probe assemblies, driving the probe assemblies to move on the mounting portion, thereby moving the probe assemblies between the used portion and the unused portion of the mounting portion, and changing the distance between adjacent probe assemblies located in the used portion to accommodate batteries of different widths and different numbers of channels.

[0065] Specifically, the variable pitch adjustment mechanism 600 can move probe components that do not need to participate in the work (i.e., more than the number of battery channels) to the unused part without changing the number of probe components, based on the number of battery channels. Then, it adjusts the spacing between the probe components that need to participate in the work (corresponding to the number of battery channels) located in the used part so that they correspond to the positive or negative electrode position of the battery under test and make contact with each one.

[0066] In one embodiment, reference Figure 2 and 3The spacing adjustment mechanism 300 includes a drive mechanism 310, a transmission shaft 320, a transmission gear set 330, a first transmission rod 340, and a second transmission rod 350. The first transmission rod 340 and the second transmission rod 350 are respectively connected to the two probe modules 200 and are symmetrically arranged along the axis of the transmission shaft 320. The first transmission rod 340 and the second transmission rod 350 have threads with different directions of rotation. The transmission gear set 330 includes a first transmission gear 331, a second transmission gear 332, and a third transmission gear 333, which are respectively located at one end of the first transmission rod 340, the second transmission rod 350, and the transmission shaft 320, and are meshed with each other. The drive mechanism 310 is used to drive the transmission shaft 320 to rotate around its own axis, and drives the first transmission rod 340 and the second transmission rod 350 to rotate through the transmission gear set 330, so as to synchronously drive the two probe modules 200 to move towards or in opposite directions along a first direction.

[0067] Specifically, the drive mechanism 310 and the first transmission gear 331 are respectively disposed at both ends of the drive shaft 320, and the second transmission gear 332 and the third transmission gear 333 are respectively disposed at one end of the first transmission rod 340 and the second transmission rod 350. The second transmission gear 332 and the third transmission gear 333 mesh with the first transmission gear 331. When the drive shaft 320 rotates under the drive of the drive mechanism 310, the second transmission gear 332 and the third transmission gear 333 meshing with the first transmission gear 331 at their ends rotate and drive the first transmission rod 340 and the second transmission rod 350. Since the screw threads of the first transmission rod 340 and the second transmission rod 350 have different directions of rotation, the two probe modules 200 connected to them can move in the same direction or in opposite directions along the first direction.

[0068] Furthermore, the frame 100 is provided with a bearing seat 110, and the two ends of the first transmission rod 340 and the second transmission rod 350 are respectively rotatably connected to the bearing seat 110 through bearings.

[0069] Furthermore, the drive mechanism 310 is a drive handwheel, which provides power by rotating the drive handwheel during use.

[0070] Further reference Figure 4 To improve the stability of the probe module 200's movement, the frame 100 is also equipped with a guide rail 120 and a guide slider 130 slidably connected to the guide rail 120. The guide slider 130 is connected to the probe module 200. During spacing adjustment, when the two probe modules 200 move linearly under the action of the drive mechanism 310, the first transmission rod 340, and the second transmission rod 350, the guide rail 120 and the guide slider 130 further guide their movement.

[0071] Furthermore, the guide slider 130 is disposed at the bottom of the probe module 200, or it can be disposed on the side of the probe module 200.

[0072] Furthermore, the guide rail 120 is also equipped with a scale 140, and the guide slider 130 is equipped with a pointer 150. During the movement of the probe module 200, these provide more precise movement guidance in the form of visual data, enabling precise adjustment of the spacing between the probe modules 200. Of course, in other embodiments, the pointer 150 can also be located on the probe module 200.

[0073] In one embodiment, reference Figure 5 and 6 The lifting mechanism 400 includes a lifting base plate 410 and a lifting drive device 420. The lifting base plate 410 is used to support the entire probe module 200 and the lifting drive device 420. The lifting drive device 420 is connected to the probe module 200 and is used to drive the probe module 200 to move in the vertical direction to change the height of the probe module 200 in the vertical direction, so that the probe module 200 can correspond to the positive and negative positions of the battery under test.

[0074] Furthermore, the guide slider 130 is located at the bottom of the lifting base plate 410, and the probe module 200 is located above the lifting base plate 410, moving up and down under the drive of the lifting drive device 420.

[0075] In one embodiment, the lifting drive device 420 includes a lifting drive handwheel 421, a lifting shaft 422, and a lifting screw 423. One end of the lifting shaft 422 is connected to the lifting drive handwheel 421, and the other end is provided with a first synchronous pulley 424. One end of the lifting screw 423 passes through the lifting base plate 410 and is connected to the probe module 200, and the other end is provided with a second synchronous pulley 425. The first synchronous pulley 424 and the second synchronous pulley 425 are connected by a synchronous belt 426.

[0076] After switching the battery model, in order to make the probe module 200 correspond to the positive and negative terminals of the battery, the lifting drive handwheel 421 drives the lifting shaft 422 to rotate, thereby driving the first synchronous wheel 424 connected to the lifting shaft 422 to rotate, driving the second synchronous wheel 425 connected to it via the synchronous belt 426 to rotate, and finally driving the lifting screw 423 to move up and down in the vertical direction, so as to move the probe module 200 up and down in the vertical direction, thereby realizing the height adjustment of the probe module 200.

[0077] Of course, in other embodiments, the lifting drive device 420 can also be a structure that can drive the probe module 200 to move vertically up and down, such as a linear motor or a cylinder.

[0078] In one embodiment, reference Figure 7 The translation mechanism 500 includes a translation drive device 510 and a translation base plate 520. The translation drive device 510 is connected to the probe module 200 and is used to drive the probe module 200 to move along a first direction to approach the positive and negative terminals of the battery under test.

[0079] In one embodiment, the translation drive device 510 is a cylinder, and the end of the piston rod of the cylinder is provided with a floating joint. The floating joint is connected to the probe module 200 to realize the linear movement of the probe module 200 along a first direction. It is understood that the translation drive device 510 can also be a linear motor or other device capable of linear movement or a device that provides linear driving force.

[0080] In one embodiment, the translation base plate 520 is provided with a translation slide rail 530 and a translation slider 540 slidably connected to the translation slide rail 530. The probe module 200 is connected to the translation slider 540 to guide and limit the movement of the probe module 200 along the first direction, so that its movement is more stable and safe.

[0081] In one embodiment, the bottom of the translation base plate 520 is provided with a guide shaft 550, the lifting base plate 410 is provided with a guide hole, the guide hole is provided with a guide bearing 430, and the guide shaft 550 is movably disposed in the guide bearing 430 for further guiding the movement of the probe module 200 in the vertical direction.

[0082] In order to save space effectively and ensure the smooth operation of all functions of the equipment during use, it is preferable to set the translation mechanism 500 and the probe module 200 on the lifting base plate 410. The translation mechanism 500 and the probe module 200 are two independent components, which are connected only through the translation drive device 510 and the probe module 200. The translation drive device 510 is a power supply device with a large weight and volume, so a separate support structure is required for the translation drive device 510.

[0083] Meanwhile, the aforementioned support columns are installed on the lifting base plate 410. It can be understood that in order to ensure the temperature of the battery tray, there are 4 support columns, which are respectively installed on the two lifting base plates 410 corresponding to the two probe modules 200.

[0084] In one embodiment, the lifting base plate 410 is further provided with a support seat 440, which consists of a support plate and two support ribs for supporting the translation drive device 510. The lifting shaft 422 is vertically arranged on the support plate and is rotatably connected to the bottom of the support plate through a support bearing 450. The support plate is provided with a sliding guide rail 460, which is slidably connected to the translation drive device 510. It can support the translation drive device 510 and bear its recoil force when it moves. At the same time, the sliding guide rail can guide the movement of the translation drive device 510 in the vertical direction, so that it can perform vertical lifting and lowering movements synchronously with the probe module 200.

[0085] In one embodiment, reference Figure 8 The variable pitch drive assembly includes a variable pitch shaft 610, which is arranged parallel to the mounting part. The variable pitch shaft 610 is connected to the probe assembly. When the variable pitch shaft 610 rotates, it drives the probe assembly to move along the axis of the variable pitch shaft 610.

[0086] In one embodiment, the variable pitch shaft 610 is provided with a plurality of threaded grooves with different slopes along the axial direction. The probe assembly includes a mounting base 211, the mounting base 211 having a mating groove 2111, and the mating groove 2111 having a protrusion 2112. The protrusion 2112 is slidably connected to the threaded groove. When the variable pitch shaft 610 rotates, it can drive the probe assembly to move along the axis of the variable pitch shaft 610, thereby changing the spacing between the probe assemblies.

[0087] In one embodiment, the used and unused portions of the mounting portion are distributed along the axial direction of the pitch-changing shaft 610; the slope of the plurality of threaded grooves gradually decreases from the used portion to the unused portion, and the pitch difference between two adjacent threaded grooves is equal. Specifically, the result of subtracting the pitch of the second threaded groove from the pitch of the third threaded groove is the same as the result of subtracting the pitch of the first threaded groove from the pitch of the second threaded groove, and so on, the pitch of other threaded grooves can be determined.

[0088] This configuration allows probe assemblies at different positions to generate different displacements along the second direction under the rotation of the pitch axis 610, while maintaining equidistant movement between adjacent probe assemblies. The slope of the unused portion can be zero, allowing probe assemblies not involved in operation to be temporarily stored. When the number of existing probe assemblies exceeds the number of battery channels, the rotation of the pitch axis 610 moves some probe assemblies to the unused portion for temporary storage. By continuously monitoring the movement of the probe assemblies and adjusting the rotation of the pitch axis 610, the probe assemblies can ultimately correspond one-to-one with the number of battery channels.

[0089] In one embodiment, the mounting part includes a guide rod 620, which is symmetrically arranged along the axis of the pitch shaft 610 and parallel to the pitch shaft 610. The mounting base 211 is also provided with a guide groove 2113, which is symmetrical along the center line of the mating groove 2111. The guide rod 620 is slidably disposed in the guide groove 2113 to provide guidance for the movement of the probe assembly.

[0090] In one embodiment, the variable pitch drive assembly further includes a drive handwheel 630 and a variable pitch gear set 640. The drive handwheel 630 is connected to the variable pitch shaft 610 through the variable pitch gear set 640. The rotation of the drive handwheel 630 drives the variable pitch gear set 640 to rotate, thereby driving the variable pitch shaft 610 to rotate.

[0091] In one embodiment, the mounting part further includes mounting plates 650 disposed at both ends of the guide rod 620. Both ends of the variable pitch shaft 610 are movably connected to the mounting plates 650. In order to ensure the smooth rotation of the variable pitch shaft 610, the mounting plates 650 are provided with rotating bearings 660, and the variable pitch shaft 610 is movably disposed within the rotating bearings 660.

[0092] It should be noted that the first direction and the second direction in this article are two mutually perpendicular directions on the horizontal plane. The first direction is the direction that is closer to or farther from the battery (or the supporting mechanism 700), which is the length direction of the battery. The second direction is the axial direction of the transmission shaft 710, which is also the width direction of the battery.

[0093] In one embodiment, reference Figure 9 and 10 The probe assembly further includes a movable mounting base 212, a probe 213, an elastic element 214, and a limiting block 215. The mounting base 211 is movably disposed on the mounting part, and a sliding track 216 is provided on the mounting base 211. The limiting block 215 is disposed at one end of the sliding track 216. The movable mounting base 212 is slidably disposed on the mounting base 211 and is connected to the limiting block 215 through the elastic element 214. The probe 213 is disposed on the movable mounting base 212 and can slide along the sliding track 216 with the movable mounting base 212 to achieve movement along the first direction.

[0094] In this embodiment, when performing battery testing, a pushing force can be applied to the probe 213 in the used part to move the probe 213, and its contact end can be pressed against the positive or negative terminal of the battery. When the probe 213 in the used part is moved to the unused part, under the restoring action of the elastic member 214, the probe 213 in the unused part moves away from the battery, which can protect the probe 213.

[0095] Furthermore, the elastic element 214 is a spring.

[0096] In one embodiment, to better achieve the movement of probe 213, a pushing mechanism 800 is further included. The pushing mechanism 800 includes a pushing base 810, a pushing plate 820, and a pushing drive device 830. The pushing plate 820 is disposed opposite to the probe assembly in the use portion to drive the probe assembly located in the use portion to move along a first direction and press against the positive or negative electrode of the battery under test. The pushing drive device 830 is disposed on the pushing base 810 and connected to the pushing plate 820.

[0097] Specifically, the push drive device 830 drives the push plate 820 to move along the first direction, thereby pushing the movable mounting base 212 to move along the first direction on the sliding track 216, so that the probe 213 moves along the first direction to press against the positive and negative terminals of the battery under test. The unused portion of the probe 213 does not contact the push plate 820 and does not have any pushing force, so it moves away from the battery under the restoring action of the elastic member 214.

[0098] In one embodiment, the pushing drive device 830 includes a first pushing track 831 extending along a second direction on the pushing base 810, a limiting plate 832 on the first pushing track 831, and a moving member 833 connected to the pushing plate 820. The limiting plate 832 is provided with a moving groove 834 inclined along the second direction, and the moving member 833 is slidably disposed in the moving groove 834. In the pushing posture, the limiting plate 832 moves along the second direction on the first pushing track 831, and the moving member 833 moves along the moving groove 834, thereby converting the movement of the limiting plate 832 along the second direction into the movement of the pushing plate 820 along the first direction.

[0099] In one embodiment, the first pushing track 831 is composed of multiple fixed blocks arranged along a second direction. The fixed blocks are provided with mounting grooves, and the limiting plate 832 is movably disposed in the mounting grooves, allowing the limiting plate 832 to move along the second direction within the mounting grooves.

[0100] In one embodiment, the limiting plate 832 is provided with a push handle 835 as a force-applying component. The operator pushes the limiting plate 832 to slide on the mounting groove through the push handle 835. At this time, the moving part 833 moves along the moving groove 834, so that the movement in the second direction is converted into the movement in the first direction, thereby enabling the push plate 820 to push the probe 213 to move.

[0101] In one embodiment, in order to improve the moving stability of the push plate 820, the push base 810 is further provided with a second push track 836, the second push track 836 extends along a first direction, and the push plate 820 is provided with a push slider that is slidably connected to the second push track 836 to guide the movement of the push plate 820 along a second direction.

[0102] It should be noted that, under normal circumstances, battery formation and capacity testing equipment is placed vertically during use. To make the structure of the battery formation and capacity testing equipment more compact, reduce horizontal space occupation, facilitate the use of various components, and improve operational smoothness and convenience, please refer to... Figure 4 The pitch adjustment mechanism 300, lifting mechanism 400, translation mechanism 500, and pushing mechanism 800 are arranged from bottom to top. The pitch adjustment mechanism 600 and the pushing mechanism 800 are simultaneously arranged on the translation mechanism 500. The probe assembly is arranged on the pitch adjustment mechanism 600. The bottom of the lifting base plate 410 is provided with a connecting block, which is threadedly connected to the first transmission rod 340 or the second transmission rod 350. The translation base plate 520 is arranged parallel above the lifting base plate 410.

[0103] It also includes a power supply assembly 900, which is disposed on the rack 100 and is circuitally connected to the probe module 200 to provide power during the battery testing process.

[0104] The working principle of this embodiment is as follows: In use, the spacing of the probe modules 200 is first adjusted according to the length of the battery by the spacing adjustment mechanism 300, and then the height of the probe modules 200 is adjusted according to the height of the battery by the lifting mechanism 400. According to the length of the battery, the position of the probe modules 200 in the first direction is further adjusted by the translation mechanism 500 so that the position of the probe modules 200 corresponds to the position of the battery terminals. At this time, the spacing between the probe components can be adjusted according to the width of the battery by the variable pitch adjustment mechanism 600. According to the number of channels of the battery tray, the probe components that do not participate in the work are moved to the unused part. The pushing mechanism 800 can move the probes 213 in the used part to contact and press them against the battery terminals one by one. At this time, the probes 213 that do not participate in the work move away from the battery under the restoring action of the elastic member 214, which can protect the probes 213 that do not participate in the work. Example 2

[0105] This embodiment provides a probe module, including multiple probe components, a pitch base, and a pitch drive component.

[0106] The probe assembly has a contact end for crimping and correspondingly contacting the positive and negative electrodes of multiple batteries under test; the pitch base has a mounting portion extending in a straight line, on which multiple probe assemblies are movably disposed; the pitch drive assembly is disposed on the pitch base and connected to the probe assembly, driving the probe assembly to move on the mounting portion to change the position of the probe assembly on the mounting portion and the distance between adjacent probe assemblies.

[0107] In one embodiment, reference Figure 8 The variable pitch drive assembly includes a variable pitch shaft 610, which is arranged parallel to the mounting part. The variable pitch shaft 610 is connected to the probe assembly. When the variable pitch shaft 610 rotates, it drives the probe assembly to move along the axis of the variable pitch shaft 610.

[0108] In one embodiment, the outer circumferential wall of the variable pitch shaft 610 is provided with a plurality of threaded grooves along the axial direction. The probe assembly includes a mounting base 211, the mounting base 211 having a mating groove 2111, and the mating groove 2111 having a protrusion 2112. The protrusion 2112 is slidably connected to the threaded groove. When the variable pitch shaft 610 rotates, it can drive the probe assembly to move along the axis of the variable pitch shaft 610, thereby changing the spacing between the probe assemblies.

[0109] In one embodiment, the variable pitch shaft 610 has a first end and a second end, which are respectively disposed at both ends in the axial direction of the variable pitch shaft 610. The slope of the plurality of threaded grooves gradually decreases from the first end to the second end, and the pitch difference between two adjacent threaded grooves is equal. Specifically, the result of subtracting the pitch of the second threaded groove from the pitch of the third threaded groove is the same as the result of subtracting the pitch of the first threaded groove from the pitch of the second threaded groove, and so on, the pitch of other threaded grooves can be determined.

[0110] In one embodiment, the variable pitch drive assembly further includes a drive handwheel 630 and a variable pitch gear set 640. The drive handwheel 630 is connected to the variable pitch shaft 610 through the variable pitch gear set 640. The rotation of the drive handwheel 630 drives the variable pitch gear set 640 to rotate, thereby driving the variable pitch shaft 610 to rotate.

[0111] In one embodiment, the mounting part includes a guide rod 620, which is symmetrically arranged along the axis of the pitch shaft 610 and parallel to the pitch shaft 610. The mounting base 211 is also provided with a guide groove 2113, which is symmetrical along the center line of the mating groove 2111. The guide rod 620 is slidably disposed in the guide groove 2113 to provide guidance for the movement of the probe assembly. Example 3

[0112] refer to Figure 11 and 12 This embodiment provides an integrated water-cooled formation and capacity testing device, including a cabinet 1000 for housing. The cabinet 1000 is equipped with an electrical distribution module 1001, a charging and discharging power module 1002, a water-cooling heat dissipation module 1003, and the aforementioned formation and capacity testing equipment (needle bed). The electrical distribution module 1001 and the charging and discharging power module 1002 are used to provide the power required for testing. The water-cooling heat dissipation module 1003 includes a water-cooling circulation pipe, which can be set on the circumference of the frame 100 to use circulating water to remove the heat generated by the formation and capacity testing equipment (needle bed) during the testing process.

[0113] Furthermore, the cabinet 1000 has a first accommodating cavity and a second accommodating cavity, the electrical power distribution module 1001, the charging and discharging power supply module 1002 and the water cooling heat dissipation module 1003 are disposed in the first accommodating cavity, and the formation and capacity-deploying device is disposed in the second accommodating cavity.

[0114] The above examples illustrate the present invention only to aid in understanding it and are not intended to limit the scope of the invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the principles of this invention.

Claims

1. A battery formation and capacity testing device, characterized in that, include: A support mechanism for supporting the battery to be tested; Two probe modules are located on opposite sides of the support mechanism along a first direction, and each probe module includes multiple probe assemblies. A spacing adjustment mechanism is provided, which is used to synchronously drive the two probe modules to move towards or away from each other along a first direction in order to adjust the distance between the two probe modules. A lifting mechanism is provided for adjusting the position of the probe module in the vertical direction. A translation mechanism is provided to adjust the probe module to move along a first direction so that the probe module is pressed against the positive and negative terminals of the battery under test. A pitch adjustment mechanism includes a pitch base and a pitch drive assembly. The pitch base has a mounting portion extending along a second direction, which is perpendicular to both the first direction and the vertical direction. A plurality of probe assemblies are movably mounted on the mounting portion, which has a used portion and an unused portion. The pitch drive assembly is disposed on the pitch base and connected to the probe assemblies, driving the probe assemblies to move on the mounting portion, thereby moving the probe assemblies between the used and unused portions of the mounting portion and changing the distance between adjacent probe assemblies located in the used portion. The component includes a variable pitch shaft, which is parallel to the mounting portion and connected to the probe assembly. When the variable pitch shaft rotates, it drives the probe assembly to move along the axis of the variable pitch shaft. The variable pitch shaft has multiple threaded grooves with different slopes along the axial direction. The probe assembly includes a mounting base with a mating groove and a protrusion that is slidably connected to the threaded grooves. The used and unused portions of the mounting portion are distributed along the axial direction of the variable pitch shaft. The slope of the multiple threaded grooves gradually decreases from the used portion to the unused portion, and the pitch difference between two adjacent threaded grooves is equal.

2. The battery formation and capacity testing device as described in claim 1, characterized in that, The variable pitch drive assembly further includes a drive handwheel and a variable pitch gear set. The drive handwheel is connected to the variable pitch shaft through the variable pitch gear set to drive the variable pitch shaft to rotate.

3. The battery formation and capacity testing device as described in claim 1, characterized in that, It also includes a pushing mechanism, which includes a pushing base, a pushing plate, and a pushing drive device. The pushing plate is disposed opposite to the probe assembly located in the use part, and the pushing drive device is disposed on the pushing base and connected to the pushing plate. The probe assembly further includes a movable mounting base, a probe, an elastic element, and a limiting block. The mounting base is movably disposed on the mounting part and has a sliding track on it. The sliding track is arranged along a first direction. The limiting block is disposed at one end of the sliding track. The movable mounting base is slidably disposed on the mounting base and is connected to the limiting block through the elastic element. The probe is disposed on the movable mounting base. The pushing drive device drives the pushing plate to move along the first direction to push the movable mounting base to move along the sliding track along the first direction, so that the probe moves along the first direction to press against the positive and negative electrodes of the battery under test.

4. A battery formation and capacity testing device as described in claim 3, characterized in that, The pushing drive device includes a first pushing track extending along a second direction on the pushing base, a limiting plate on the first pushing track, and a moving member connected to the pushing plate. The limiting plate is provided with a moving groove inclined along the second direction. The moving member is slidably disposed in the moving groove. In the pushing posture, the limiting plate moves along the second direction on the first pushing track, and the moving member moves along the moving groove, thereby converting the movement of the limiting plate along the second direction into movement along the first direction.

5. A battery formation and capacity testing device as described in claim 1, characterized in that, The spacing adjustment mechanism includes a drive mechanism, a transmission shaft, a transmission gear set, a first transmission rod, and a second transmission rod. The first and second transmission rods are respectively connected to the two probe modules and are symmetrically arranged along the axis of the transmission shaft. The first and second transmission rods have threads with different directions of rotation. The transmission gear set is located at one end of the first transmission rod, the second transmission rod, and the transmission shaft, and meshes with each other. The drive mechanism is used to drive the transmission shaft to rotate around its own axis and drive the first and second transmission rods to rotate through the transmission gear set, so as to synchronously drive the two probe modules to move towards or in opposite directions along a first direction.

6. A battery formation and capacity testing device as described in claim 1, characterized in that, The lifting mechanism includes a lifting drive device, which is connected to the probe module and is used to drive the probe module to move up and down in the vertical direction.

7. A battery formation and capacity testing device as described in claim 1, characterized in that, The translation mechanism includes a translation drive device, which is connected to the probe module to drive the probe module to move along a first direction.

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