A compatible needle bed suitable for square case battery variable temperature

Abstract

The application discloses a compatible needle bed suitable for variable-temperature of square cell, which comprises a main body structure, a top frame assembly, a guide support assembly and a middle hollow bottom frame assembly; an integrated module assembly for cell formation, charging, capacity grading and load adjustment process, which is movably connected to the top frame assembly, and comprises a cooling fan, a variable-pitch module mechanism and a probe assembly; a lifting frame assembly arranged on the bottom frame assembly and driven by a driving assembly to vertically move a battery tray; the driving assembly is used for driving the vertical movement of the lifting frame assembly; and a variable-temperature mechanism connected with the lifting frame assembly and fixed in the middle hollow area of the bottom frame assembly and moving along with the vertical movement of the lifting frame assembly. The application can be applied to four traditional processes, the parts of the application are completely universal among the four processes, the types of spare parts are reduced, and the maintenance cost is lowered.

Description

Technical Field

[0001] This invention relates to the field of lithium battery technology, and more specifically to a compatible needle bed suitable for temperature-dependent prismatic batteries. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, key processes such as negative pressure formation, charging, capacity grading, and load adjustment have a significant impact on the consistency, safety, and lifespan of battery performance. Battery bed-of-nails (BONs) are critical testing equipment in lithium battery manufacturing, directly affecting the accuracy, efficiency, and reliability of battery performance testing. With the development of battery technology, BONs are evolving towards greater compatibility, intelligent pressure control, and efficient heat dissipation.

[0003] However, existing needle beds still have certain shortcomings. Traditional equipment is mostly dedicated to a single process, requiring independent design of corresponding equipment for different processes. The interchangeability of components between different process equipment is low, necessitating companies to purchase multiple sets of equipment to meet production needs, resulting in significant capital investment. Secondly, existing technologies not only neglect the inherent height differences between the aforementioned processes, but more importantly, research on the need for micro-displacement adjustment of the probe module in the horizontal direction (left and right) is severely insufficient. These spatial differences (height and horizontal) are significantly amplified in actual high-speed continuous production: height changes directly affect the contact stroke and pressure consistency between the probe and the battery terminal; while horizontal displacement (whether due to process requirements, equipment deformation, or assembly tolerances) causes the contact point between the probe and the battery terminal to shift. The combined effect of both results in significant fluctuations in probe contact resistance, severely impairing the accuracy of test data and the long-term stability of equipment operation. Frequent poor contact may even damage the probe or battery terminal. Therefore, the field needs a needle bed that is compatible with traditional processes, has interchangeable components, and is height-adjustable.

[0004] Therefore, this invention proposes a compatible needle bed suitable for variable temperature applications of prismatic batteries. Summary of the Invention

[0005] To overcome the above-mentioned technical defects, the present invention provides a compatible needle bed suitable for temperature-changing prismatic batteries. The probe assembly is adjusted by an integrated module to accommodate the difference in pole center distance between different processes and different battery sizes. The lifting frame assembly is driven by the drive assembly to make vertical movements to adapt to the height difference between different processes.

[0006] To solve the above problems, the present invention is implemented according to the following technical solution:

[0007] This invention discloses a compatible needle bed suitable for temperature-changing prismatic batteries, comprising a main structure, an integrated module assembly, a lifting frame assembly, a drive assembly, and a temperature-changing mechanism;

[0008] The main structure includes a top frame assembly, a guide support assembly, and a bottom frame assembly with a hollowed-out center. The top frame assembly is connected to the bottom frame assembly through the guide support assembly.

[0009] An integrated module assembly is used for battery formation, charging, capacity grading, and load adjustment processes. It is movably connected to the top frame assembly. The integrated module assembly includes a cooling fan, a variable pitch module mechanism, and a probe assembly. The integrated module assembly uses the variable pitch module mechanism to adjust the probe end of the probe assembly to accommodate differences in terminal distance between different processes and battery sizes.

[0010] A lifting frame assembly is disposed on a bottom frame assembly, and a battery tray carrying the battery pack is placed on the lifting frame assembly. The lifting frame assembly is driven by a drive assembly and carries the battery tray to move vertically.

[0011] A driving component, the driving component being used to drive the vertical movement of the lifting frame component;

[0012] A temperature-changing mechanism is fixed in the central hollow area of ​​the bottom frame assembly and moves along with the vertical movement of the lifting frame assembly.

[0013] Furthermore, the integrated module assembly has a sliding component on its module side crossbeam, which is connected to the first slide groove of the top frame assembly, thereby realizing the movable connection between the integrated module assembly and the top frame assembly.

[0014] Furthermore, the integrated module assembly includes:

[0015] The cooling fan is mounted on the integrated module assembly;

[0016] The variable pitch module mechanism controls the probe assembly to move horizontally, including a drive device, a driven assembly, and a linkage assembly. The drive device drives the driven assembly and the linkage assembly to move synchronously through bevel gears and transmission rods.

[0017] The driven component is provided with a first adapter plate and a second adapter plate. The driving end of the driving device passes through the first adapter plate and the second adapter plate in sequence. One end of the first adapter plate is connected to a first sliding block, and one end of the second adapter plate is connected to a second sliding block. The driving device drives the vertical section of the first sliding block or the second sliding block to move horizontally in the same or opposite direction on the first slide rail assembly.

[0018] The probe assembly includes a positive electrode probe assembly, a negative electrode probe assembly, a temperature probe assembly, and a negative pressure assembly, wherein the probe ends of the probe assembly penetrate the horizontal bearing surfaces of the first sliding block and the second sliding block at equal intervals.

[0019] Wherein, the horizontal section ends of the first sliding block or the second sliding block are integrally formed with the vertical section. The driven component and the linkage component cause the first sliding block and the second sliding block to move linearly through the driving end, driving the probe component to move laterally, so as to achieve battery replacement compatibility.

[0020] Furthermore, the integrated module assembly is provided with a split module top plate, which consists of a first module top plate, a module guide fixing plate, a second module top plate, a module top plate connecting plate, and a module top frame longitudinal connecting rod. The first module top plate and the second module top plate are connected by the module guide fixing plate and the module top frame longitudinal connecting rod. The module top plate connecting plate is interleaved with the module guide fixing plate and the module top frame longitudinal connecting rod to form a grid structure.

[0021] Furthermore, the integrated module assembly is provided with a module embedding plate inside, and several sets of probe components are inserted in the hollow area in the middle of the module embedding plate. The module embedding plate is provided with boss structures at equal intervals. The upper end of the boss structure is reinforced by a central reinforcing rib, and the lower end is provided with a sliding groove fixing component to assist the movement of the probe components.

[0022] Furthermore, a plurality of straightening and guiding mechanisms are provided directly below the module embedded in the connecting plate, including a straightening and guiding plate. The straightening and guiding plate moves in the slide groove fixing member through the second slider slide rail assembly. The straightening and guiding mechanism is used for battery positioning.

[0023] Furthermore, the negative pressure assembly includes a negative pressure hose, a pipe crimp nut, an injection molding pipe fitting, a negative pressure cup lid, a negative pressure cup, a negative pressure suction rod guide sleeve, a negative pressure suction rod, a connector, and a negative pressure suction nozzle;

[0024] One end of the negative pressure hose is connected to the manifold assembly via a universal hose connector, and the other end of the negative pressure hose is connected to the injection molding pipe connector of the negative pressure cup lid via a pipe crimp nut.

[0025] The negative pressure cup lid is installed on the top of the negative pressure cup to form a vacuum chamber. The bottom of the negative pressure cup is connected to one end of the negative pressure suction rod. The guide sleeve of the negative pressure suction rod is sleeved on the negative pressure suction rod, and the other end of the negative pressure suction rod is connected to the negative pressure suction nozzle.

[0026] The connector is sandwiched between the negative pressure suction nozzle and the negative pressure suction rod guide sleeve. The negative pressure suction nozzle is in direct contact with the battery filling port and extracts the gas generated during the battery process through negative pressure.

[0027] Furthermore, the lifting frame assembly is equipped with a roller-type feeding mechanism, which includes a pallet support roller, a flow strip assembly, a pallet front guide plate, a pallet side guide plate, a pallet rear guide plate, an inlet roller, and a manual press baffle. The inlet roller, the pallet front guide plate, and the manual press baffle are arranged on the same horizontal line. The inlet roller and the pallet front guide plate guide the battery pallet to feed, and the pallet support roller and the flow strip assembly assist the battery pallet in rolling to feed until it contacts the pallet rear guide plate, thus completing the feeding process.

[0028] Furthermore, the drive assembly is a cylinder drive assembly, which is connected to the top frame assembly, and a connecting rod extending from the cylinder drive assembly is connected to the lifting frame assembly.

[0029] Furthermore, the temperature-regulating mechanism is fixed to the bottom of the lifting frame assembly and consists of a guide air duct sheet metal, a cooling fan, a fan mounting sheet metal, and a temperature regulator. The temperature regulator is located at the beginning of the guide air duct inside the guide air duct sheet metal, and the cooling fan is located at the end of the guide air duct, directing the air cooled by the temperature regulator toward the battery tray supported on the lifting frame assembly.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] This invention provides a compatible needle bed suitable for temperature-dependent prismatic batteries. By incorporating an integrated module for battery formation, charging, capacity testing, and load adjustment processes, it is applicable to all four traditional processes: formation, charging, capacity testing, and load adjustment. This solves the problem of incompatibility of components between different processes, improves equipment utilization, and reduces enterprise equipment investment costs. The invention also features a lifting frame assembly driven by a drive component, which carries the battery tray in vertical movement. This allows for automatic spacing adjustment. The vertical movement of the lifting frame assembly, controlled by the drive component, adjusts the battery tray height to match the needle bed height requirements of different processes, ensuring stable probe contact resistance. Furthermore, the components of this solution are completely interchangeable across the four processes, reducing the types of spare parts inventory and lowering annual maintenance costs. Attached Figure Description

[0032] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0033] Figure 1 This is a schematic diagram of the overall structure of a compatible needle bed suitable for variable temperature square-shell batteries proposed in this invention.

[0034] Figure 2 This is a schematic diagram of the overall structure of a compatible needle bed suitable for variable temperature square-shell batteries proposed in this invention.

[0035] Figure 3This is a schematic diagram of the overall structure of an integrated module assembly in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0036] Figure 4 This is a side view of an integrated module assembly in a compatible needle bed for variable temperature applications of prismatic batteries, as proposed in this invention.

[0037] Figure 5 This is a side view of an integrated module assembly in a compatible needle bed for variable temperature applications of prismatic batteries, as proposed in this invention.

[0038] Figure 6 This is a bottom schematic diagram of an integrated module assembly in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0039] Figure 7 This is a side view of an integrated module assembly in a compatible needle bed for variable temperature applications of prismatic batteries, as proposed in this invention.

[0040] Figure 8 This is a top view of an integrated module assembly in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0041] Figure 9 This is a schematic diagram of a compatible needle bed variable pitch module mechanism suitable for temperature-changing prismatic batteries proposed in this invention.

[0042] Figure 10 This is a schematic diagram of another perspective of the variable pitch module mechanism in a compatible needle bed, which is suitable for temperature-changing prismatic batteries, as proposed in this invention.

[0043] Figure 11 This is a schematic diagram of the top plate of a split module in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0044] Figure 12 This is a schematic diagram of a probe module and a module embedding plate in a compatible needle bed suitable for variable temperature square-shell batteries, as proposed in this invention.

[0045] Figure 13 This is a side view of a probe module and module embedding plate in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0046] Figure 14 This is a schematic diagram of the battery tray in a compatible needle bed for variable temperature shaped batteries, as proposed in this invention.

[0047] Figure 15 This is a schematic diagram of a negative pressure assembly in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0048] Figure 16 This is a schematic diagram of the connection between the negative pressure component and the busbar component in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0049] Figure 17 This is a schematic diagram of a roller-type feeding mechanism in a compatible needle bed suitable for temperature-changing square-shell batteries, as proposed in this invention.

[0050] Figure 18 This is a connection diagram of a temperature-changing mechanism in a compatible needle bed for temperature-changing of square-shell batteries proposed in this invention.

[0051] Figure 19 This is a schematic diagram of a temperature-changing mechanism in a compatible needle bed for variable temperature applications of prismatic batteries, as proposed in this invention.

[0052] In the picture:

[0053] 1. Main structure;

[0054] 11. Top frame component; 12. Guide support component; 13. Bottom frame component;

[0055] 2. Integrated modular components;

[0056] 21. Cooling fan; 22. Variable pitch module mechanism; 23. Probe assembly; 24. Split module top plate; 25. Module embedding connecting plate;

[0057] 220. Drive unit; 221. Driven assembly; 222. Linkage assembly; 223. Bevel gear; 224. Transmission rod; 225. First slide rail assembly; 226. Sensor assembly; 227. Scale;

[0058] 2201, Drive end; 2202, Motor;

[0059] 2211, First adapter plate; 2212, Second adapter plate; 2213, First sliding block; 2214, Second sliding block;

[0060] 231. Positive electrode probe assembly; 232. Negative electrode probe assembly; 233. Temperature probe assembly; 234. Negative voltage assembly; 235. Channel plate assembly;

[0061] 2401. Module side crossbeam; 2402. Sliding assembly; 2403. Module guide fixing plate; 2404. Module top plate connecting plate; 2405. Module top frame longitudinal connecting rod; 2406. Module support plate; 2407. First module side sealing plate; 2408. Second module side sealing plate; 2409. Intermediate reinforcing rib; 2410. First module top plate; 2411. Second module top plate; 2412. First module bottom plate; 2413. Second module bottom plate;

[0062] 251. Boss structure; 252. Slide rail fixing component; 253. Second slider slide rail assembly; 254. Straightening guide plate;

[0063] 2341. Negative pressure hose; 2342. Pipe crimp nut; 2343. Injection molding pipe fitting; 2344. Negative pressure cup lid; 2345. Negative pressure cup; 2346. Negative pressure suction rod guide sleeve; 2347. Connector; 2348. Negative pressure suction nozzle; 2349. Universal hose connector; 23410. Manifold assembly; 23411. Negative pressure suction rod;

[0064] 3. Improve framework components;

[0065] 31. Drum-type feeding mechanism;

[0066] 311. Pallet support rollers; 312. Flow strip assembly; 313. Pallet front guide plate; 314. Pallet side guide plate; 315. Pallet rear guide plate; 316. Entrance rollers; 317. Manual press baffle;

[0067] 4. Driver components;

[0068] 41. Cylinder drive assembly;

[0069] 5. Temperature control mechanism;

[0070] 51. Sheet metal for airflow duct; 52. Cooling fan; 53. Sheet metal for fan mounting; 54. Temperature controller;

[0071] 6. Battery tray;

[0072] 61. Tray edge. Detailed Implementation

[0073] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0074] The following detailed description of the features and advantages of the present invention in the embodiments is sufficient to enable anyone skilled in the art to understand the technical content of the present invention and implement it accordingly. Based on the disclosure, claims, and drawings in this specification, anyone skilled in the art can easily understand the related objectives and advantages of the present invention. The following embodiments are further detailed in illustrating the viewpoints of the present invention, but are not intended to limit the scope of the present invention in any way.

[0075] Furthermore, embodiments of the present invention will be disclosed below with reference to the accompanying drawings. For the purpose of clarity, some conventional structures and components may be shown in a simplified schematic manner in the drawings, and some features in the drawings may be slightly enlarged or have their scale or size changed to facilitate understanding and viewing of the technical features of the present invention. However, this is not intended to limit the present invention. In addition, coordinate axes are provided in the drawings to facilitate understanding the relative positional relationships and directions of operation of the components.

[0076] It should be understood that the terms "upper," "lower," etc., indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the invention, unless otherwise stated, "a plurality of" means two or more.

[0077] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" should be interpreted broadly. For example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; and they can be internal connections between two components.

[0078] Additionally, the terms "end," "section," "part," "area," and "location" may be used below to describe specific elements and structures or specific technical features thereon or therebetween, but these elements and structures are not limited by these terms. The term "and / or" may also be used below, referring to a combination that includes one or more of the listed related elements or structures. Furthermore, the terms "substantially," "basically," "about," or "approximately" may be used below, and when used in conjunction with ranges of dimensions, concentrations, temperatures, or other physical or chemical properties or characteristics, they are intended to cover deviations that may exist within the upper and / or lower limits of the range of such properties or characteristics, or to indicate acceptable deviations caused by manufacturing tolerances or analytical processes, while still achieving the intended effect.

[0079] Furthermore, unless otherwise defined, all words or terms used herein, including technical and scientific terms, have their ordinary meanings that can be understood by those skilled in the art. In other words, the definitions of the above-mentioned words or terms should be interpreted in this specification as having the same meaning as those in the relevant technical field of this invention. Unless specifically defined, these words or terms will not be interpreted as having overly idealized or formal meanings.

[0080] like Figures 1 to 19 The diagram shows a preferred structure of a compatible needle bed suitable for variable temperature applications of prismatic batteries, as described in this invention.

[0081] This invention discloses a compatible needle bed suitable for temperature-changing prismatic batteries, comprising a main structure 1, an integrated module assembly 2, a lifting frame assembly 3, a drive assembly 4, and a temperature-changing mechanism 5;

[0082] The main structure 1 includes a top frame assembly 11, a guide support assembly 12, and a bottom frame assembly 13 with a hollowed-out center. The top frame assembly 11 is connected to the bottom frame assembly 13 through the guide support assembly 12.

[0083] An integrated module assembly 2 is used for battery formation, charging, capacity grading, and load adjustment processes. It is movably connected to the top frame assembly 11. The integrated module assembly 2 includes a cooling fan 21, a variable pitch module mechanism 22, and a probe assembly 23. The integrated module assembly 2 uses the variable pitch module mechanism 22 to adjust the probe end of the probe assembly 23 to accommodate the difference in electrode distance between different processes and battery sizes.

[0084] The lifting frame assembly 3 is disposed on the bottom frame assembly 13, and the battery tray 6 carrying the battery pack is placed on the lifting frame assembly 3. The lifting frame assembly 3 is driven by the drive assembly 4 and carries the battery tray 6 to move vertically.

[0085] Drive component 4, which is used to drive the vertical movement of lifting frame component 3;

[0086] The temperature-changing mechanism 5 is fixed in the hollow area in the middle of the bottom frame assembly 3 and moves along with the vertical movement of the lifting frame assembly 3. This embodiment provides a compatible needle bed suitable for temperature-changing of prismatic batteries. By setting an integrated module assembly for battery formation, charging, capacity testing, and load adjustment processes, it is applicable to the four traditional processes of formation, charging, capacity testing, and load adjustment. This solves the problem of non-interchangeability of parts between different process equipment, improves equipment utilization, and reduces enterprise equipment investment costs. In this embodiment, the lifting frame assembly 3 is driven by the drive assembly 4 to carry the battery tray 6 in vertical movement, enabling automatic adjustment of the spacing. The vertical movement of the lifting frame assembly 3, controlled by the drive assembly 4, can adjust the height of the battery tray 6 to match the height and position requirements of the needle bed in different processes, ensuring stable probe contact resistance. In addition, the drive assembly 4 is completely interchangeable between the four processes, reducing the types of spare parts inventory and lowering annual maintenance costs.

[0087] To further improve the flexibility of integrated modules, such as Figure 3 As shown, a sliding component 2402 is provided on the module side crossbeam 2401 of the integrated module assembly 2. The sliding component 2402 is connected in the first slide groove of the top frame assembly 11, thereby realizing the movable connection between the integrated module assembly 2 and the top frame assembly 11. In this embodiment, the modular setting of the integrated module assembly 2 and the movable connection with the needle bed realize the position adjustment. Compared with the traditional fixed connection, there is no need to disassemble the bolts, which greatly improves the work efficiency. Through the modular sliding mechanism, the equipment has both high rigidity and high flexibility, perfectly solving the contradictory requirements of compatibility and precision.

[0088] The integrated module assembly 2 of this embodiment will be further described below. The integrated module assembly 2 is mainly used to realize the corresponding processes of the device for the battery and is the core component in the charging and discharging process. The frame of the integrated module assembly 2 is mainly ( Figure 3 , Figure 11 It consists of a module support plate 2406, a first module side sealing plate 2407, a second module side sealing plate 2408, a module side crossbeam 2401, a first module top plate 2410, a second module top plate 2411, a first module bottom plate 2412, a second module bottom plate 2413, and an intermediate reinforcing rib 2409. Figures 3-8 As shown.

[0089] The integrated module assembly 2 includes: a cooling fan 21, mounted on the integrated module assembly 2; a variable pitch module mechanism 22, which controls the horizontal movement of the probe assembly 23, including a drive device 220, a driven component 221, and a linkage component 222. The drive device 220 drives the driven component 221 and the linkage component 222 through a bevel gear 223 and a transmission rod 224, so that the driven component 221 and the linkage component 222 move synchronously. The driven component 221 is provided with a first adapter plate 2211 and a second adapter plate 2212. The drive end 2201 of the drive device 220 passes through the first adapter plate 2211 and the second adapter plate 2212 in sequence. One end of the first adapter plate 2211 is connected to a first sliding block 2213, and one end of the second adapter plate 2212 is connected to a second sliding block 2213. 14. The driving device 220 drives the vertical section of the first sliding block 2213 or the second sliding block 2214 to move horizontally in the same or opposite direction on the first slide rail assembly 225; the probe assembly 23 includes a positive electrode probe assembly 231, a negative electrode probe assembly 232, a temperature probe assembly 233 and a negative pressure assembly 234, and the probe ends of the probe assembly 23 pass through the horizontal section bearing surfaces of the first sliding block 2213 and the second sliding block 2214 at equal intervals; wherein, the two ends of the horizontal section of the first sliding block 2213 and the second sliding block 2214 are integrally formed with the vertical section, and the driven assembly 221 and the linkage assembly 222 drive the first sliding block 2213 and the second sliding block 2214 to make linear motion through the driving end 2201, thereby driving the probe assembly 23 to move laterally and realizing battery replacement compatibility.

[0090] For the art, existing technologies suffer from insufficient battery size compatibility and limited adjustment range; the traditional probe module changeover adjustment steps for needle beds involve first removing the screws securing the probe module, then moving the module to the designated position, and finally reinstalling the screws; the limiting mechanism is mainly used to adjust the vertical movement of the drive component, which is insufficient to meet the stepless adjustment requirements of different battery models (such as different thicknesses and electrode position variations in square batteries), and manual adjustment of the limiting mechanism is inefficient, affecting production efficiency. This embodiment addresses the above-mentioned issues by providing a variable pitch module mechanism 22. It is understood that, as... Figures 9-10As shown, this mechanism is used to drive the probe assembly 23 to adjust the horizontal spacing to accommodate batteries of different specifications. It includes a drive device 220 providing a power source, comprising a drive end 2201 and a motor 2202. In this embodiment, the drive end 2201 is a lead screw and nut assembly. The driven assembly 221 and the linkage assembly 222 receive the drive and move synchronously. The driven assembly 221 is provided with a first adapter plate 2211 and a second adapter plate 2212. The drive device 220 transmits power to the driven assembly 221 and the linkage assembly 222 through a bevel gear 223 and a transmission rod 224, ensuring synchronous movement. The output shaft (drive end 2201) of the drive device 220 passes sequentially through the first adapter plate 2211 and the second adapter plate 2212. The first adapter plate 2211 is connected to a first sliding block 2213, and the second adapter plate 2212 is connected to a second sliding block 2214. The driving device 220 drives the vertical section of the first sliding block 2213 or the second sliding block 2214 to move horizontally in the same or opposite direction on the first slide rail assembly 225 via the driving end 2201. Both the first sliding block 2213 and the second sliding block 2214 adopt an integrally formed L-shaped structure, including a horizontal section (for supporting the probe assembly) and a vertical section (for guidance and driving). Multiple functional probes are integrated, including a positive electrode probe assembly 231, a negative electrode probe assembly 232, a temperature probe assembly 233, and a negative pressure assembly 234. The probe ends of the probe assemblies pass through and are fixed at equal intervals to the horizontal section bearing surfaces of the first sliding block 2213 and the second sliding block 2214.

[0091] The drive end 2201 of the drive device 220 drives the driven component 221, causing the first adapter plate 2211 and the second adapter plate 2212 on the driven component 221 to drive the first sliding block 2213 and the second sliding block 2214 to move in the same or opposite directions, respectively. During the start-up process of the drive device 220, the linkage component 222 is driven to move synchronously via the bevel gear 223 and the transmission rod 224. The movement of the driven component 221 drives the first adapter plate 2211 and the second adapter plate 2212 connected to it, thereby driving the first sliding block 2213 and the second sliding block 2214 to move linearly on the slide rail assembly 225. Since the two sliding blocks can move in the same or opposite directions, they drive the probe assembly 23 fixed on its horizontal section to move laterally, thereby adjusting the probe spacing to achieve compatibility with batteries of different sizes (type changes).

[0092] Based on this embodiment, the drive device 220 consists of a drive end 2201, a motor 2202, a coupling 2203, and a bevel gear 223. The driven component 221 includes a first adapter plate 2211, a second adapter plate 2212, a first sliding block 2213, and a second sliding block 2214. The driven component connects the first sliding block 2213 and the second sliding block 2214 via the first adapter plate 2211 to drive the probe plate and the front side of the negative pressure plate. The linkage component 222 consists of a bevel gear 223 and a lead screw and nut assembly, and similarly connects the first sliding block 2213 and the second sliding block 2214 via the first adapter plate 2211 to drive the probe plate and the rear side of the negative pressure plate. The sensor assembly 226, in conjunction with a scale 227, is used to locate and identify the moving position of the probe plate and the negative pressure plate. The anti-collision buffer pad is used to reduce the impact generated during abnormal movement. This embodiment uses motor 2202 to automatically change the pitch of the module, which can save the cost of manual pitch change; secondly, the automatic pitch change uses drive device 220, driven component 221 and linkage component 222 to move the front and rear sides of the probe plate simultaneously. The position of movement is controlled by servo motor, and the distance adjustment of the module is more accurate than manual adjustment; finally, the automatic pitch change is controlled by motor, which is an automated process with faster pitch change time and higher efficiency.

[0093] Another aspect of this embodiment, such as Figure 6 As shown, the integrated design of the channel board assembly 235 and the probe module assembly reduces the cable length between them, thereby lowering the cable impedance and reducing external interference. A row of fans is mounted on the top fan plate of the integrated module assembly 2, which provides forced cooling for the channel board assembly 235, effectively ensuring its temperature stability and enabling the channel board to operate at higher power.

[0094] To further reduce costs and increase efficiency, such as Figure 11As shown, the integrated module assembly 2 is provided with a split module top plate 24, which consists of a first module top plate 2410, a module guide fixing plate 2403, a second module top plate 2411, a module top plate connecting plate 2404, and a module top frame longitudinal connecting rod 2405. The first module top plate 2410 and the second module top plate 2411 are connected by the module guide fixing plate 2403 and the module top frame longitudinal connecting rod 2405. The module top plate connecting plate 2404 is interleaved with the module guide fixing plate 2403 and the module top frame longitudinal connecting rod 2405 to form a grid structure. In this embodiment, the split module top plate 24 is the main structure 1 of the top frame assembly 11. It is a crucial component for supporting and fixing the overall module frame. The traditional one-piece design at the top of the module has been changed to a split design, where a single integral part is broken down into several individual parts for assembly. This design offers the following advantages: 1. It simplifies complex parts, reducing overall component complexity and manufacturing costs; 2. It reduces manufacturing waste, as previously some material had to be removed, now only the necessary material needs to be processed, reducing material costs; 3. It lowers the cost of replacing parts during subsequent maintenance, as if a part malfunctions and needs replacement, only the individual part needs to be replaced instead of the entire module, reducing maintenance material costs.

[0095] In this embodiment, as Figures 12-14 As shown, the integrated module assembly 2 has a module embedding plate 25 inside, and several sets of probe assemblies 23 are inserted in the hollow area in the middle of the module embedding plate 25. The module embedding plate 25 has boss structures 251 arranged at equal intervals between each other. The upper end of the boss structure 251 is reinforced by a central reinforcing rib, and the lower end is provided with a sliding groove fixing member 252 to assist the movement of the probe assembly 23. The width of the module embedding plate 25 is greater than the height of the tray frame 61, so that there is a certain distance between the left and right ends of the module embedding plate 25 and the tray frame 61. The boss structures 251 provided in the module embedding plate 25 make a certain height difference between the probe end of the module assembly and the module embedding plate 25, and the lowest horizontal point of the module embedding plate 25 will not interfere with the rising height of the tray, so that the probe assembly 23 can extend into the tray (below the height of the tray frame 61) to perform process operations. The above-mentioned design has the following advantages: First, the convex design of the module embedded plate 25 allows the probe assembly 23 to be embedded inside the tray without interference when it is working, avoiding the installation risk of collision when the mechanism moves abnormally; Second, the probe assembly 23 can be embedded inside the tray to work, so when adapting to cells of different heights, the original tray can be used directly without replacing the tray, reducing the manufacturing cost of the tray and the storage space for storing different trays.

[0096] On the other hand, a number of straightening and guiding mechanisms for positioning the battery tray 6 are provided directly below the module embedded connecting plate 25, including a straightening and guiding plate 254. The straightening and guiding plate 254 moves in the slide groove fixing member 252 through the second slider slide rail assembly 253. The straightening and guiding mechanism is used for battery positioning.

[0097] This embodiment features a centering and guiding mechanism that uses dynamic adaptive positioning to ensure precise alignment of the battery tray 6 during loading, testing, and repositioning. In one embodiment, the centering and guiding mechanism comprises two guide plates, one on the left and one on the right. The guide plate 254 located on the side of the outermost battery extends into the gap between the edge of the battery pack and the tray frame 61. The guide plate 254 on the other side extends into the gap between two adjacent batteries. The horizontal width of the guide plate 254 is designed to be smaller than the gap width between the tray frame 61 and the edge of the battery pack. This size design allows the guide plate to effectively contact and guide the side of the tray or battery when inserted into the gap, thereby achieving radial (horizontal) position correction of the battery tray 6. To accommodate battery trays 6 of different sizes, the entire centering and guiding mechanism can move along a preset sliding groove structure to adjust its relative position, ensuring compatibility with different tray specifications.

[0098] In this embodiment, the negative pressure component 234 is as follows: Figure 15 and Figure 16 As shown, the negative pressure assembly 234 comprises a negative pressure hose 2341, a hose crimp nut 2342, an injection molding hose connector 2343, a negative pressure cup lid 2344, a negative pressure cup 2345, a negative pressure suction rod guide sleeve 2346, a negative pressure suction rod 23411, a connector 2347, and a negative pressure suction nozzle 2348. One end of the negative pressure hose 2341 is connected to the manifold assembly 23410 via a universal hose connector 2349, and the other end of the negative pressure hose 2341 is connected to the injection molding hose connector 2343 of the negative pressure cup lid 2344 via a hose crimp nut 2342. The negative pressure cup lid 2344 is installed... A vacuum chamber is formed at the top of the negative pressure cup 2345. The bottom of the negative pressure cup 2345 is connected to one end of the negative pressure suction rod 23411. The negative pressure suction rod guide sleeve 2346 is sleeved on the negative pressure suction rod 23411, and the negative pressure suction rod 23411 is connected to the negative pressure suction nozzle 2348. A connecting piece 2347 is sandwiched between the negative pressure suction nozzle 2348 and the negative pressure suction rod guide sleeve 2346. That is, the connecting piece 2347 can be a snap ring or a nut. The negative pressure suction nozzle 2348 is in direct contact with the battery filling port and extracts the gas generated during the battery process through negative pressure. Specifically, the negative pressure assembly 234 is as follows: Figure 15 and Figure 16As shown, one end of the negative pressure hose 2341 is securely connected to the manifold assembly 23410 via a universal hose connector 2349, while the other end is reliably connected to the injection-molded hose connector 2343 on the negative pressure cup lid 2344 via a pipe clamp nut 2342, ensuring the stability and efficiency of negative pressure transmission. The negative pressure cup lid 2344 is precisely installed on the top of the negative pressure cup 2345, and the two fit together tightly to form a stable vacuum chamber, laying a solid foundation for subsequent negative pressure operations. The bottom of the negative pressure cup 2345 is firmly connected to one end of the negative pressure suction rod 23411, while the negative pressure suction rod guide sleeve 2346 is precisely fitted onto the negative pressure suction rod 23411, ensuring the smoothness and stability of the suction rod's movement. The negative pressure suction rod 23411 and the negative pressure suction nozzle 2348 are efficiently connected, and a connector 2347 is cleverly clamped between the negative pressure suction nozzle 2348 and the negative pressure suction rod guide sleeve 2346. The connector 2347 can be flexibly made of snap rings or nuts, which greatly improves the reliability and convenience of the connection. In practical applications, the negative pressure suction nozzle 2348 is in close contact with the battery filling port, extracting the gas generated during the battery manufacturing process through negative pressure. This design not only effectively improves the safety of battery production but also significantly enhances production efficiency, fully demonstrating the significant progress and application advantages of this negative pressure component in the battery manufacturing process. The above-mentioned design has the following beneficial effects: 1. It reduces the length of the negative pressure hose 2341 between the negative pressure suction rod 23411 and the negative pressure cup 2345, thereby reducing the cost of using the negative pressure hose 2341; 2. It can effectively reduce the residual electrolyte content in the negative pressure hose 2341 during the negative pressure process, reducing the probability of leakage of the negative pressure component 234; 3. It can reduce the number of interfaces in the negative pressure system, thereby improving the overall airtightness and stability of the negative pressure system and making the system more reliable; 4. The integrated design can reduce the assembly volume of the component and improve the convenience of later maintenance and disassembly.

[0099] It should be noted that the connection between the negative pressure component 234 and the busbar component 23410 has been optimized from a fixed connector to a universal rotating connector, which can adapt to negative pressure hoses 2341 coming from different angles and prevent electrolyte residue from being caused by bending of the negative pressure hoses 2341.

[0100] The roller-type feeding mechanism 31 in this embodiment is as follows: Figure 17As shown, the lifting frame assembly 3 is equipped with a roller-type feeding mechanism 31. The roller-type feeding mechanism 31 includes a tray support roller 311, a flow strip assembly 312, a tray front guide plate 313, a tray side guide plate 314, a tray rear guide plate 315, an inlet roller 316, and a manual press baffle 317. The inlet roller 316, the tray front guide plate 313, and the manual press baffle 317 are arranged on the same horizontal line. The inlet roller 316 and the tray front guide plate 313 guide the battery tray 6 to feed in. The tray support roller 311 and the flow strip assembly 312 assist the battery tray 6 in rolling the feed until it contacts the tray rear guide plate 315. The manual press baffle 317 is manually operated after the tray is in place to prevent the tray from sliding out.

[0101] The above setup has the following advantages: First, by adding roller-feeding to the traditional forklift feeding method, the alignment accuracy of manual pallet feeding is reduced, making it easier for personnel to operate and improving work efficiency. Second, roller-feeding has a lower and more controllable impact on the equipment mechanism, which can extend the service life of the mechanism and enhance the reliability of some parts of the equipment. Third, roller-feeding requires less space for pallet entry, so the entry height space for pallets can be reduced accordingly, thereby reducing the height of the equipment and lowering the material cost of the equipment.

[0102] In this embodiment, the lifting frame assembly 3 is driven by a cylinder. Specifically, the driving assembly 4 is a cylinder driving assembly 41, which is connected to the top frame assembly 11. A connecting rod extending from the cylinder driving assembly 41 is connected to the lifting frame assembly 3. Cylinder driving is a linear motion actuator based on compressed air energy conversion, a mature technology in the field of industrial automation. Its core working principle is to control compressed air to alternately enter the chambers at both ends of the cylinder through a solenoid valve, pushing the internal piston to perform reciprocating linear motion, thereby driving the external load mechanism.

[0103] The temperature-changing mechanism 5 in this embodiment is as follows: Figure 18 and Figure 19As shown, the temperature-regulating mechanism 5 is fixed to the bottom of the lifting frame assembly 3 and consists of a guide air duct sheet metal 51, a cooling fan 52, a fan mounting sheet metal 53, and a temperature regulator 54. The temperature regulator 54 is located at the beginning of the guide air duct inside the guide air duct sheet metal 51, and the cooling fan 52 is located at the end of the guide air duct. It directs the air cooled by the temperature regulator 54 towards the battery tray 6 supported by the lifting frame assembly 3. The specific working principle is that the air is constrained by the guide air duct sheet metal 51 to form a certain flow. The airflow direction is fixed by the cooling fan 52. When the air flows through the temperature controller 54, it exchanges heat with the liquid in the tube of the temperature controller 54 through a process of convection-conduction-convection. The medium in the tube can be a low-temperature liquid or a high-temperature liquid. Different media are selected according to different battery processes. When cooling is required during the battery process, a low-temperature liquid is selected as the medium in the tube. Since the temperature of the air is higher than that of the liquid in the tube, when the air passes through the guide air duct sheet metal 51, the low-temperature medium in the tube carries away the heat and is blown out by the cooling fan 52 after reaching the end.

[0104] When heating is required during the battery manufacturing process, the medium inside the tube is a high-temperature liquid. When the air passes through the guide air duct sheet metal 51, the high-temperature medium inside the tube increases in temperature and is blown out by the cooling fan 52 after reaching the end.

[0105] The temperature-regulating mechanism 5 is installed on the bottom surface of the lifting frame and rises and falls with the lifting frame. Therefore, the distance between the temperature-regulating mechanism 5 and the battery tray 6 on the lifting frame assembly 3 is always fixed, and stable heat dissipation conditions can be maintained during operation.

[0106] On the other hand, the temperature control mechanism 5 can control the battery cooling effect in two ways. The first is to use an adjustable-speed fan, using a PWM signal to control the airflow speed of the cooling fan 21, thereby controlling the battery temperature. The second is to adjust the fluid speed and temperature inside the thermostat 54. By adjusting the water flow temperature at the water supply end or using a flow proportional valve to control the fluid speed inside the pipe, the temperature of the air after passing through the thermostat 54 is adjusted, thereby controlling the battery temperature. The two control methods can be used individually or in combination, depending on the temperature to be controlled.

[0107] The working principle of the compatible needle bed for variable temperature spherical batteries described in this invention is as follows:

[0108] During equipment operation, the variable-pitch module mechanism 22 automatically adjusts the distance between the probe ends of the probe module according to the preset battery size. An external device feeds the battery-carrying tray onto the lifting frame assembly 3 via a roller-type feeding mechanism 31. After confirming the tray is fully in place, a manual press baffle 317 is manually operated to prevent the tray from sliding out. The drive assembly 4 is then activated, causing the lifting frame assembly 3 to move upwards until the battery terminals contact and press against the probe module. Due to the protrusion structure 251 of the module embedded in the connecting plate 25, the probe ends of the probe module can extend into the tray for contact and pressing. The lifting frame assembly 3 has pins for positioning the battery tray, and a straightening guide mechanism prevents battery displacement, thus positioning the battery. At this point, a signal indicating that the battery is in place is transmitted to the host computer, initiating the battery process. Furthermore, a temperature-regulating mechanism 5 is connected to the bottom of the lifting frame assembly 3, and this mechanism rises as the lifting frame assembly 3 rises, thus continuously dissipating heat from the battery pack during equipment operation. After the battery process is completed, the drive component 4 reverses the action to reset the equipment, and finally the tray is removed and transported to the next process.

[0109] Other structures of the compatible needle bed suitable for variable temperature spherical batteries described in this embodiment are available in the prior art.

[0110] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A compatible needle bed suitable for use in a temperature change of a prismatic battery, characterized in that, It includes the main structure, integrated module components, lifting frame components, drive components, and temperature-regulating mechanism; The main structure includes a top frame assembly, a guide support assembly, and a bottom frame assembly with a hollowed-out center. The top frame assembly is connected to the bottom frame assembly through the guide support assembly. The integrated module assembly is used for battery formation, charging, capacity grading, and load adjustment processes. It is movably connected to the top frame assembly. The integrated module assembly includes a cooling fan, a variable pitch module mechanism, and a probe assembly. The integrated module assembly adjusts the probe end of the probe assembly through the variable pitch module mechanism to accommodate the difference in electrode distance between different processes and different battery sizes. The cooling fan is mounted on the integrated module assembly. The variable pitch module mechanism controls the probe assembly to move horizontally, including a drive device, a driven assembly, and a linkage assembly. The drive device drives the driven assembly and the linkage assembly to move synchronously through bevel gears and transmission rods. The driven component is provided with a first adapter plate and a second adapter plate. The driving end of the driving device passes through the first adapter plate and the second adapter plate in sequence. One end of the first adapter plate is connected to a first sliding block, and one end of the second adapter plate is connected to a second sliding block. The driving device drives the vertical section of the first sliding block or the second sliding block to move horizontally in the same or opposite direction on the first slide rail assembly. The probe assembly includes a positive electrode probe assembly, a negative electrode probe assembly, a temperature probe assembly, and a negative pressure assembly. The probe ends of the probe assembly pass through the horizontal bearing surfaces of the first sliding block and the second sliding block at equal intervals. The two ends of the horizontal section of the first sliding block or the second sliding block are integrally formed with the vertical section. The driven assembly and the linkage assembly cause the first sliding block and the second sliding block to move linearly through the driving end, thereby driving the probe assembly to move laterally and achieving battery replacement compatibility. A lifting frame assembly is disposed on a bottom frame assembly, and a battery tray carrying the battery pack is placed on the lifting frame assembly. The lifting frame assembly is driven by a drive assembly and carries the battery tray to move vertically. A driving component, the driving component being used to drive the vertical movement of the lifting frame component; A temperature-changing mechanism is fixed in the central hollow area of ​​the bottom frame assembly and moves along with the vertical movement of the lifting frame assembly.

2. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 1, characterized in that, The integrated module assembly has a sliding component on its module side crossbeam. The sliding component is connected to the first slide groove of the top frame assembly, thereby realizing the movable connection between the integrated module assembly and the top frame assembly.

3. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 1, characterized in that, The integrated module assembly is provided with a split module top plate, which consists of a first module top plate, a module guide fixing plate, a second module top plate, a module top plate connecting plate, and a module top frame longitudinal connecting rod. The first module top plate and the second module top plate are connected by the module guide fixing plate and the module top frame longitudinal connecting rod. The module top plate connecting plate is interleaved with the module guide fixing plate and the module top frame longitudinal connecting rod to form a grid structure.

4. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 2, characterized in that, The integrated module assembly has a module embedding plate inside, and several sets of probe assemblies are inserted in the hollow area in the middle of the module embedding plate. The module embedding plate is provided with boss structures at equal intervals. The upper end of the boss structure is reinforced by a central reinforcing rib, and the lower end is provided with a sliding groove fixing component to assist the movement of the probe assembly.

5. The compatible needle bed for variable temperature spherical batteries according to claim 4, characterized in that, Several straightening and guiding mechanisms are provided directly below the module embedded in the connecting plate, including a straightening and guiding plate. The straightening and guiding plate moves in the slide groove fixing member through the second slider slide rail assembly. The straightening and guiding mechanism is used for battery positioning.

6. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 2, characterized in that, The negative pressure assembly includes a negative pressure hose, a pipe crimp nut, an injection molding pipe fitting, a negative pressure cup lid, a negative pressure cup, a negative pressure suction rod guide sleeve, a negative pressure suction rod, a connector, and a negative pressure suction nozzle; One end of the negative pressure hose is connected to the manifold assembly via a universal hose connector, and the other end of the negative pressure hose is connected to the injection molding pipe connector of the negative pressure cup lid via a pipe crimp nut. The negative pressure cup lid is installed on the top of the negative pressure cup to form a vacuum chamber. The bottom of the negative pressure cup is connected to one end of the negative pressure suction rod. The guide sleeve of the negative pressure suction rod is sleeved on the negative pressure suction rod, and the other end of the negative pressure suction rod is connected to the negative pressure suction nozzle. The connector is sandwiched between the negative pressure suction nozzle and the negative pressure suction rod guide sleeve. The negative pressure suction nozzle is in direct contact with the battery filling port and extracts the gas generated during the battery process through negative pressure.

7. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 1, characterized in that, The lifting frame assembly is equipped with a roller-type feeding mechanism, which includes a pallet support roller, a flow strip assembly, a pallet front guide plate, a pallet side guide plate, a pallet rear guide plate, an inlet roller, and a manual press baffle. The inlet roller, the pallet front guide plate, and the manual press baffle are arranged on the same horizontal line. The inlet roller and the pallet front guide plate guide the battery pallet to be fed in, and the pallet support roller and the flow strip assembly assist the battery pallet in rolling and feeding until it contacts the pallet rear guide plate, thus completing the feeding process.

8. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 1, characterized in that, The drive assembly is a cylinder drive assembly, which is connected to the top frame assembly, and a connecting rod extending from the cylinder drive assembly is connected to the lifting frame assembly.

9. The compatible needle bed for variable temperature applications of prismatic batteries according to claim 1, characterized in that, The temperature-regulating mechanism is fixed to the bottom of the lifting frame assembly and consists of a guide air duct sheet metal, a cooling fan, a fan mounting sheet metal, and a temperature regulator. The temperature regulator is located at the beginning of the guide air duct inside the guide air duct sheet metal, and the cooling fan is located at the end of the guide air duct. The fan directs the air cooled by the temperature regulator towards the battery tray supported by the lifting frame assembly.

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