Large-pressure clamp

Abstract

The invention discloses a high-pressure clamp. The high-pressure clamp comprises a front end plate and a rear end plate which are connected through a pull rod assembly. The pressurization power assembly system penetrates through the front end plate to be connected with the deviation rectifying assembly and further acts on the push plate and the battery bearing system, and axial pressurization is achieved. The flexible pressure maintaining plate can generate controllable elastic deformation to adapt to the form of the solid-state battery. The battery bearing system is located between the front end plate and the rear end plate and is composed of a layer plate assembly array and symmetrically-installed PCB assemblies, and the layer plate assembly array is connected with the push plate and the rear end plate through a pressure detection device so as to monitor pressure in real time. The guide column penetrates through the front end plate, the linear bearing, the push plate, the battery bearing system and the rear end plate to form a coaxial line guide structure, the axis of the guide column is coplanar with the output axis of the pressurization power assembly system, and the motion straightness and stability are ensured. According to the invention, the precision, stability and uniformity of pressure application are integrally improved, and the assembly quality and performance of the solid-state battery are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of large-pressure clamps, and in particular to a large-pressure clamp. Background Art

[0002] As the next generation of high energy density and high safety energy storage technology, the manufacturing process of solid-state batteries places higher demands on the accuracy and stability of pressure control. Unlike traditional liquid electrolyte lithium batteries, the electrode-electrolyte interface of solid-state batteries requires a higher assembly pressure to ensure ion conduction efficiency, while avoiding interface stratification or brittle electrolyte rupture caused by uneven pressure. Existing pressure fixture devices are mainly designed for traditional liquid electrolyte lithium batteries. Direct application of them on solid-state batteries will have the following problems: the rigid contact between the solid electrolyte (such as oxides and sulfides) and the electrode material requires a uniform and constant pressure greater than 10MPa, while traditional hydraulic / pneumatic fixtures are difficult to maintain long-term stability, and pressure fluctuations can easily cause micro cracks on the interface of the solid-state battery. In the high-temperature sintering process of solid-state batteries, the thermal expansion of metal components (such as tie rods and end plates) will interfere with the preset pressure, requiring thermal compensation design.

[0003] In actual applications, traditional pressure fixtures are unable to effectively handle the diverse shapes of solid-state batteries, resulting in uneven force on battery components, affecting battery performance and lifespan. Furthermore, traditional fixtures struggle to maintain continuous and stable pressure output over long periods of use, which in turn affects battery assembly quality. Furthermore, in precision assembly scenarios, traditional fixtures struggle to meet the high-precision load-bearing and pressure testing requirements of solid-state batteries. Summary of the Invention

[0004] In order to overcome the technical defects of being unable to apply stable pressure when applied to solid-state batteries, being unable to work stably for a long time under high pressure, and being unable to adapt to the special process requirements of solid-state batteries, the present invention provides a high-pressure clamp.

[0005] In order to solve the above problems, the present invention is implemented according to the following technical solutions:

[0006] In the first aspect, the present invention provides a large pressure clamp, which includes: a large pressure clamp body, which includes a plurality of pull rod assemblies, a front end plate, a push plate and a rear end plate, and the front end plate is connected to the rear end plate through the plurality of pull rod assemblies; a pressurized powertrain system, which runs through the front end plate and is connected to a correction assembly, and the correction assembly is connected to the push plate; wherein the correction assembly is composed of an output connecting plate, a flexible pressure maintaining plate and a fixed connecting plate connected in sequence; a battery carrying system, which is arranged between the push plate and the rear end plate, and the battery carrying system includes a plurality of layer plate assemblies An array of layer plate components, each layer plate component is symmetrically installed with PCB components on both sides; wherein the head end of the layer plate component array is connected to the push plate through a first pressure detection device, and the tail end of the layer plate component array is connected to the rear end plate through a second pressure detection device; a guide column, the guide column sequentially passes through the front end plate, the linear bearing, the push plate, the battery support system and the rear end plate to form a coaxial guide structure, and the axis of the guide column and the output axis of the pressurized powertrain system are located in the same plane; when the pressurized powertrain system applies axial pressure to the battery support system through the correction component, the flexible pressure maintaining plate generates controllable elastic deformation to adapt to the shape of the solid-state battery.

[0007] In combination with the first aspect, the present invention provides a first specific implementation of the first aspect. Specifically, the layer assembly is provided with a guide column through hole adapted to the guide column, and the adjacent layer assemblies are arranged on the guide column through a guide sleeve; the top end of the layer assembly is provided with a plurality of mounting holes, and the mounting holes are used to fix the PCB assembly; the PCB assembly is respectively installed at both ends of the layer assembly.

[0008] In combination with the first aspect, the present invention provides a second specific implementation of the first aspect, specifically, an aluminum panel, wherein a plurality of circulating water cooling pipes are provided inside the aluminum panel; a guide device, wherein the guide device is fixedly installed at the top center position of the aluminum panel; a temperature control plate, wherein the temperature control plate is attached and installed on the upper surface of the aluminum panel; a first temperature control detection device, wherein the first temperature control detection device is built into the aluminum panel; a guide bracket, wherein the guide bracket is symmetrically installed at both ends of the aluminum panel, and an isolation strip is embedded at the connection interface between the guide bracket and the main body of the aluminum panel; a distance plate, wherein the distance plate is installed on the temperature control plate; wherein the edge of the PCB component forms a surface contact clamping positioning with the distance plate.

[0009] In combination with the first aspect, the present invention provides a third specific implementation of the first aspect. Specifically, the first pressure detection device and the second pressure detection device both include an insulating pressure plate, a pressure sensor mounting plate and a pressure sensor; the insulating pressure plates are respectively arranged at the head and tail ends of the layer assembly array, and the insulating pressure plates are connected to the pressure sensor through the pressure sensor mounting plate.

[0010] In combination with the first aspect, the present invention provides a fourth specific implementation of the first aspect, specifically, a distance adjustment system, one end of the distance adjustment system is fixed to the left side of the push plate, and the other end of the distance adjustment system is fixed to the inner side of the rear end plate; the distance adjustment system includes a distance pull tab and a chain adjustment module; the distance pull tab is fixed to the left side of the push plate; the chain adjustment module is a threaded pair adjustment mechanism consisting of an adjusting nut, a chain adjusting rod and a chain adjusting seat; wherein, the chain adjustment module is connected to the distance pull tab through a distance chain.

[0011] In combination with the first aspect, the present invention provides a fifth specific implementation of the first aspect. Specifically, a clamping structure is provided at the middle position on both sides of the layer assembly, and the clamping structure is adapted to the distance chain for fixing the position of the layer assembly.

[0012] In combination with the first aspect, the present invention provides a sixth specific implementation of the first aspect, specifically, a battery cell positioning system, which includes a slide rail assembly and a battery cell position sensor mounting plate; the slide rail assembly is respectively arranged on the inner side of the front end plate and the inner side of the rear end plate; the battery cell position sensor mounting plate slides with the slide rail assembly through a dovetail groove structure, and the layer plate assembly is provided with a battery cell position sensor that matches the battery cell position sensor mounting plate.

[0013] In combination with the first aspect, the present invention provides a seventh specific implementation of the first aspect, specifically, a position installation detection system, which includes a sensor mounting bracket, a position sensor and a position sensor mounting plate; the sensor mounting bracket is provided with an arc-shaped mounting groove adapted to the pull rod assembly; the position sensor is fixed to the sensor mounting bracket through a sensor mounting plate; the position sensor mounting plate is fixed to the left side of the push plate, and cooperates with the position sensor to realize battery position detection.

[0014] In combination with the first aspect, the present invention provides an eighth specific implementation of the first aspect, specifically, the front end plate and the rear end plate are both provided with a stepped through hole compatible with the pull rod assembly; the pull rod assembly sequentially passes through the stepped through hole of the front end plate and the stepped through hole of the rear end plate; after passing through the front end plate and the rear end plate, the pull rod assembly is respectively fixed to the front end plate and the rear end plate by a double nut top locking structure; an expansion positioning mechanism, the expansion positioning mechanism includes an expansion sleeve arranged between the front end plate and the guide column and an expansion sleeve arranged between the rear end plate and the guide column; one end of the guide column is connected to the front end plate through an expansion sleeve, and the other end of the guide column is connected to the rear end plate through an expansion sleeve.

[0015] In combination with the first aspect, the present invention provides a ninth specific implementation of the first aspect, specifically, a servo drive module, which is composed of a transmission chain consisting of a servo motor through a reduction box and a gear box; an electric cylinder execution module, which includes an electric cylinder body base connected to the gear box output shaft, and the output end of the electric cylinder body base is connected to the correction component through a floating ball head mechanism, wherein the floating ball head mechanism is provided with an axial pressure plate limiting structure.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The high-pressure clamp of the present invention can effectively solve the problems of traditional pressure clamps in the manufacture of solid-state batteries and improve the assembly quality and performance. The high-pressure clamp body is connected to the front and rear end plates by a pull rod assembly to form a stable frame that can withstand and transmit large pressure, ensuring a reliable and durable structure. The pressurized power assembly system runs through the front end plate and is connected to the correction assembly, transmitting power to the correction assembly, acting on the push plate and the battery support system to achieve axial pressure, and the correction assembly can adjust the compensation pressure to make the pressure stable and uniform. The correction assembly is composed of an output connecting plate, a flexible pressure-maintaining plate and a fixed connecting plate. The flexible pressure-maintaining plate has controllable elastic deformation and is used to adapt to solid-state batteries of different forms. The battery support system is composed of a layer plate assembly array and a symmetrically installed PCB assembly. It can accommodate multiple battery assemblies, improve efficiency, and ensure uniform force. The pressure detection devices at both ends can monitor the pressure in real time and accurately control the output pressure. The guide column runs through each component to form a coaxial guide structure to ensure the linearity and stability of movement and improve assembly accuracy and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of a large pressure clamp machine of the present invention.

[0020] Figure 2 It is an exploded view of a large pressure clamp machine of the present invention.

[0021] Figure 3 It is a structural schematic diagram of the overhead crane track of the present invention.

[0022] Figure 4 It is a structural schematic diagram of a large pressure clamp of the present invention.

[0023] Figure 5 It is a front view of a large pressure clamp of the present invention.

[0024] Figure 6 It is a side view of a large pressure clamp of the present invention.

[0025] Figure 7 It is a partially enlarged view of the fixed distance adjustment system I of the present invention.

[0026] Figure 8 It is a schematic structural diagram of the pressurized power assembly system of the present invention.

[0027] Figure 9 This is a schematic diagram of the structure of the laminate assembly of the present invention. Figure 1 .

[0028] Figure 10 This is a schematic diagram of the structure of the laminate assembly of the present invention. Figure 2 .

[0029] Figure 11 It is a schematic diagram of the PCB assembly structure of the present invention.

[0030] Figure 12 It is a schematic structural diagram of the correction component of the present invention.

[0031] In the figure: 1-high pressure fixture body; 11-pull rod assembly; 12-front end plate; 13-rear end plate; 14-push plate; 141-linear bearing; 15-expansion sleeve; 16-guide column; 2-pressurized power assembly system; 21-servo drive module; 211-servo motor; 212-reduction gearbox; 213-gearbox; 22-electric cylinder execution module; 221-electric cylinder body base; 222-floating ball head mechanism; 2221-axial pressure plate limiting structure; 3-correction assembly; 31-output connecting plate; 32-flexible pressure maintaining plate; 33-fixed connecting plate; 4-battery carrying system; 4 1-Layer assembly array; 411-Layer assembly; 4111-Snap-fit ​​structure; 4111.a-Split pin; 4111.b-Pin shaft; 4112-Aluminum layer; 4113-Guide device; 4114-Temperature control board; 4115-First temperature control detection device; 4116-Guide mount; 4116.a-Linear guide sleeve; 4116.b-Axial pressure sleeve; 4117-Isolation strip; 4118-Spacer; 4119-Circulating water cooling pipe; 42-PCB assembly; 421-PCB board; 422-Pressure assembly; 4221-Tap pressure plate; 4222-Tap Spring pressure plate; 423-fixed seat; 424-ear guide block; 425-cell guide block; 426-connecting seat; 427-second temperature control detection device; 428-sliding device; 43-first pressure detection device; 431-first insulation pressure plate; 432-first pressure sensor mounting plate; 433-first pressure sensor; 44-second pressure detection device; 441-second insulation pressure plate; 442-second pressure sensor mounting plate; 443-second pressure sensor; 5-fixed distance adjustment system; 51-fixed distance pull tab; 52-chain adjustment module; 521-adjusting nut; 5 22-chain adjustment rod; 523-chain adjustment seat; 53-distance chain; 6-battery cell positioning system; 61-slide rail assembly; 62-battery cell position sensor mounting plate; 621-battery cell position sensor; 7-position installation detection system; 71-sensor mounting bracket; 72-sensor mounting plate; 721-position sensor; 73-position sensor mounting plate; 8-first frame mechanism; 81-emergency exhaust vent; 82-display device; 83-protective device; 9-second frame mechanism; 91-moving device; 92-charging and discharging power supply; 10-overhead crane track; 101-overhead crane manipulator. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] like Figures 1 to 12 As shown, a large pressure clamp according to the present invention.

[0034] Solid-state batteries are considered to be strong candidates for the next generation of energy storage technology due to their high energy density and safety, but their industrialization process still faces core challenges such as poor solid-solid interface contact and lithium dendrite growth. Studies have confirmed that solid-state batteries need to ensure uniform and dynamically controllable pressure during the charging and discharging process, which is a key technical means to improve interface contact stability and inhibit lithium dendrite growth. The present invention effectively solves technical problems such as uniformity control and dynamic response speed optimization during pressure application by innovatively designing the existing battery clamp and integrating a high-precision pressure servo control system. The pressure clamp equipment used in the present invention can significantly improve the interface stability of solid-state batteries, extend the battery cycle life, and provide key process equipment guarantees for the research and development and large-scale production of solid-state batteries.

[0035] The high-pressure clamp of the present invention is specially designed for the battery cell stacking and pressure application links in the solid-state battery manufacturing process. The purpose is to achieve stable, uniform and controllable high pressure on the battery cell to ensure the tightness and stability of the internal structure of the solid-state battery, thereby improving the battery performance and quality. The high-pressure clamp machine adopts an integrated design of power supply, pressure clamp and frame. It has the advantages of compact structure, small footprint, convenient maintenance, high charging and discharging efficiency, etc., and can be flexibly adapted to laboratory research and development needs. At the same time, the high-pressure clamp machine supports production line-level expansion applications. By deploying multiple devices side by side and combining the overhead crane manipulator to realize automatic battery placement and removal, a highly automated solid-state battery mass production line can be constructed to fully meet the charging and discharging requirements of various soft-pack batteries in process links such as pressure formation, pressure capacity division, and pressure OCV / DCIR testing, helping to accelerate the industrialization process of solid-state batteries.

[0036] Example 1

[0037] like Figures 1 and 2 As shown, a large pressure clamp machine includes: a large pressure clamp body 1, the large pressure clamp body 1 is used to apply pressure to the solid-state battery for packaging; a second frame mechanism 9, the large pressure clamp body 1 is installed on the second frame mechanism 9; a first frame mechanism 8, the first frame mechanism 8 is installed on the second frame mechanism 9, and the first frame mechanism 8 is adapted to the second frame mechanism 9; a cavity is provided on the inner side of the second frame mechanism 9, the cavity is used to place the charging and discharging power supply 92, and the charging and discharging power supply 92 is electrically connected to the large pressure clamp body 1; a loading and unloading platform; the loading and unloading platform is placed near the pressure clamp platform for manual loading and unloading.

[0038] Specifically, the high-pressure clamp body 1, as the executive core of the high-pressure clamp machine, is responsible for applying uniform and dynamically controllable pressure to the battery. Through a sophisticated pressure control system, it can simulate pressure environments under different operating conditions, ensuring the stability and safety of the battery during the charging and discharging process.

[0039] In one embodiment, the bottom of the second frame structure 9 is equipped with a moving device 91 to facilitate the transportation and positioning of the equipment. At the same time, it can be fixed to the ground by welding or bolting to ensure the stability of the equipment. The moving device 91 can be a roller or a forklift hole.

[0040] In one embodiment, the loading and unloading platform is paved with an anti-slip mat to ensure stability for workers during operation. The anti-slip mat is made of rubber material and has an anti-slip texture on the surface, which can effectively increase the friction between the worker and the platform, preventing safety accidents such as slipping.

[0041] In a preferred embodiment, the first frame structure 8 integrates a hazardous gas monitoring system, comprising a gas concentration sensor mounted on the inner wall of the first frame structure to detect hazardous substance concentrations and an emergency response module. The gas concentration sensor is configured to detect hazardous substance concentrations exceeding a preset threshold and activate the emergency exhaust system. If the concentration exceeds the warning limit, the emergency response module immediately sends a signal to the control system, triggering the activation of the emergency exhaust system.

[0042] In a preferred embodiment, the emergency exhaust device includes a plurality of emergency exhaust vents, which are arranged at the top of the first frame mechanism 8. The emergency exhaust vents are activated by electric or manual control to reduce the concentration of harmful substances.

[0043] Specifically, the top of the first frame structure 8 is equipped with several emergency exhaust vents 81. When the detection device detects that the concentration of harmful substances in the pressure fixture platform exceeds the warning limit, the emergency exhaust vents 81 can be automatically activated to reduce the concentration of harmful substances, thereby ensuring production safety. The emergency exhaust vents 81 are electrically or manually controlled. When the concentration of harmful substances exceeds the warning limit, the emergency exhaust vents 81 can be automatically or manually activated to reduce the concentration of harmful substances. The emergency exhaust vents 81 are rationally designed to effectively remove harmful gases.

[0044] In a preferred embodiment, the first frame mechanism 8 is provided with a protective device 83, which includes a safety door and a safety door lock. The safety door lock is connected to a safety module for detecting abnormalities of the large pressure clamp machine and issuing an alarm and shutting down the machine in a timely manner, thereby effectively preventing potential safety hazards.

[0045] In a preferred embodiment, the first frame mechanism 8 is provided with a display device 82 for displaying relevant parameters of the pressure fixture platform, whether materials are missing, etc. The display device 82 can be a display screen or an industrial computer, etc.

[0046] In a preferred embodiment, Figure 3 As shown, the overhead crane track 10 extends along the length direction of several large pressure clamps placed side by side, and is installed on the inner top surface of the first frame mechanism 8 of the several large pressure clamps in a continuous transverse manner; an overhead crane manipulator 101 is installed on the overhead crane track 10 to realize automatic loading and unloading of the large pressure clamp body 1, thereby constructing a highly automated solid-state battery mass production line to meet large-scale production needs and solve the problem of slow manual loading and unloading speed.

[0047] Specifically, the overhead crane track 10 is rigidly fixed directly on the inner top surface of the first frame mechanism 8 of each device to ensure that the track has sufficient load-bearing rigidity and stability. The track is erected at a certain height above the equipment operating area (such as the pressure fixture body, loading and unloading stations), creating an unobstructed high-altitude mobile channel for the overhead crane manipulator 101 covering all side-by-side equipment. The track is directly integrated on the top of the first frame without occupying additional ground or channel space between equipment, solving the space bottleneck of material transfer when multiple devices are arranged side by side. A continuous track spans all equipment, allowing a single overhead crane manipulator to serve an entire row of fixtures, achieving efficient material flow under high-density equipment layout. The overhead crane manipulator 101 can move freely and accurately on the track to the top of any fixture machine, performing the grabbing, lifting, horizontal transfer, lowering and placement actions of the large pressure fixture body 1 (or battery cell), completely replacing manual loading and unloading. The robot can quickly switch between adjacent devices according to the production rhythm, or perform parallel tasks on multiple devices (such as one machine retrieving material while another is unloading it), significantly improving overall production efficiency. The overhead crane track 10 is continuously fixed to the top of the first frame structure of each large pressure clamp arranged side by side, creating an elevated, continuous, and highly rigid automated logistics channel. This design fully utilizes the structural space of the equipment itself, achieving highly automated, efficient, and inherently safe material handling between multiple devices. It is a key innovative layout for achieving unmanned or reduced-staff loading and unloading in compact production lines.

[0048] Example 2

[0049] In one embodiment, if Figure 4As shown, the large pressure clamp body 1, the large pressure clamp body 1 includes a plurality of tie rod assemblies 11, a front end plate 12, a push plate 14 and a rear end plate 13; the front end plate 12 is connected to the rear end plate 13 through the plurality of tie rod assemblies 11; the pressurized powertrain system 2, the pressurized powertrain system 2 is inserted through the front end plate 12 and connected to the correction assembly 3, and the correction assembly 3 is installed on the outside of the push plate 14; the battery carrying system 4, the head end of the battery carrying system 4 is connected to the inner side of the push plate 14 through the first pressure detection device 43, the battery The tail end of the battery carrying system 4 is connected to the rear end plate 13 through the second pressure detection device 44; the guide column 16, the guide column 16 passes through the front end plate 12, the linear bearing 141, the push plate 14, the battery carrying system 4 and the rear end plate 13 in sequence to form a coaxial guide structure, and the axis of the guide column 16 and the output axis of the pressurized powertrain system 2 are located in the same plane; the distance adjustment system 5, one end of the distance adjustment system 5 is fixed to the left side of the push plate 14, and the other end of the distance adjustment system 5 is fixed to the inner side of the rear end plate 13.

[0050] Specifically, the front end plate 12 and the rear end plate 13 are connected by four tie rod assemblies 11 to form an integral frame structure. The connection adopts a double-nut top locking structure. The expected force of the nut is calculated and controlled to ensure that the front end plate 12 and the rear end plate 13 will not be displaced or deformed during the force process, providing a stable installation and support platform for the internal systems, components and solid-state batteries of the large pressure fixture. The linear bearing 141 is fixed to the push plate by screws, and the guide column 16 passes through the linear bearing 141 and the push plate 14 in sequence. At the same time, a double guide column is provided in the large pressure fixture. The double guide column is set on the inner side of the tie rod assembly 11, and the double guide column is parallel to the tie rod assembly 11 and is symmetrically arranged. The central axis of the guide column 16 and the output axis of the powertrain are in the same plane, which solves the problem of frame deformation caused by eccentric load under high pressure conditions.

[0051] In a preferred embodiment, the front end plate 12 and the rear end plate 13 are provided with stepped through holes adapted to the pull rod assembly 11; the pull rod assembly 11 sequentially passes through the stepped through holes of the front end plate 12 and the rear end plate 13; after passing through the front end plate 12 and the rear end plate 13, the pull rod assembly 11 is fixed to the front end plate 12 and the rear end plate 13 respectively through a double nut top locking structure; an expansion positioning mechanism, the expansion positioning mechanism includes an expansion sleeve 15 arranged between the front end plate 12 and the guide column 16 and an expansion sleeve 15 arranged between the rear end plate 13 and the guide column 16; one end of the guide column 16 is connected to the front end plate 12 through the expansion sleeve 15, and the other end of the guide column 16 is connected to the rear end plate 13 through the expansion sleeve 15.

[0052] Specifically, the large-diameter section of the stepped through hole of the front end plate 12 and the rear end plate 13 accommodates the threaded section of the tie rod assembly 11, and the small-diameter section provides axial limitation, forming a dual function of "positioning + connection". A double-nut top-to-top structure (such as two M16 nuts screwed in opposite directions) is adopted, and the friction between the threads is used to eliminate the risk of loosening caused by vibration, ensuring that the tie rod assembly 11 will not undergo axial displacement or loosening when subjected to the tension and pressure generated during the operation of the high-pressure clamp, thereby ensuring the structural stability and reliability of the entire device and providing a stable processing environment for the production of solid-state batteries. The inner hole of the expansion sleeve 15 and the guide column 16 adopt an H7 / s6 interference fit, and radial pressure is generated by hydraulic expansion or mechanical pressing to form a keyless connection. This design realizes zero-gap transmission, ensuring the axial / radial positioning accuracy of the guide column 16. The conical surface structure of the expansion sleeve 15 allows fine-tuning in the loosened state. When the shelf offset needs to be calibrated, the tensioning force is released using a hydraulic tool. The guide column 16 can be automatically re-tightened by removing the tensioning mechanism. While the tensioning mechanism is removed to replace worn components like the guide sleeve, it is not required to adapt to different battery sizes. Furthermore, this design facilitates replacement of shelves that have worn out due to frequent expansion and contraction during long-term use, improving the system's maintainability and adaptability.

[0053] Example 3

[0054] In one embodiment, if Figure 8 As shown, the pressurized powertrain system 2 includes: a servo drive module 21, which is composed of a transmission chain consisting of a servo motor 211 through a reduction box 212 and a gear box 213; an electric cylinder execution module 22, which includes an electric cylinder body base 221 connected to the output shaft of the gear box 213, and the output end of the electric cylinder body base 221 is connected to the correction component 3 through a floating ball head mechanism 222, wherein the floating ball head mechanism 222 is provided with an axial pressure plate limiting structure 2221.

[0055] In detail, the servo drive module 21 is composed of a servo motor 211, a reduction gearbox 212 and a gearbox 213 forming a transmission chain. The servo motor 211 has position control and speed regulation functions, and can accurately drive the subsequent electric cylinder execution module 22 according to a pre-set program, so as to apply stable and controllable pressure to the solid-state battery, and meet the requirements of the solid-state battery for pressure loading speed during different process stages. The electric cylinder body base 221 and the output shaft of the gearbox 213 are spline-connected to ensure the smoothness and reliability of power transmission. The output thrust of the electric cylinder body base 221 can reach 150 tons, and its output end is connected to the correction component 3 through a floating ball head mechanism 222. The floating ball head mechanism 222 can automatically adjust within a certain angle range, effectively compensating for the slight angle deviation that may occur due to the solid-state battery or the large pressure fixture itself, so as to ensure uniform application of pressure; at the same time, the floating ball head mechanism 222 is also provided with an axial pressure plate limiting structure 2221, which can limit the axial displacement of the axial pressure plate to prevent equipment damage or abnormal pressure application due to excessive displacement, and the limiting accuracy is within an appropriate range.

[0056] Example 4

[0057] In one embodiment, if Figure 12 As shown, the deviation-correcting assembly 3 is composed of an output connecting plate 31, a flexible pressure-maintaining plate 32 and a fixed connecting plate 33 connected in sequence; wherein, the flexible pressure-maintaining plate 32 is made of rubber material.

[0058] In detail, the deviation-correcting component 3 is composed of an output connecting plate 31, a flexible pressure-maintaining plate 32, and a fixed connecting plate 33, which are connected in sequence by bolts. When the flexible pressure-maintaining plate 32 is subjected to the pressure applied by the pressurized powertrain system 2, it realizes pressure-maintaining conformity to the surface of the solid-state battery by generating elastic deformation itself, so that it can automatically adapt to the subtle geometric shape differences on the surface of the solid-state battery and ensure uniform distribution of pressure. At the same time, the deviation-correcting component 3 realizes pressure adaptive control through the flexible pressure-maintaining plate 32 made of rubber material, which can effectively alleviate local stress concentration and improve the contact stability of the battery interface. The flexible pressure-maintaining plate 32 undergoes controllable elastic deformation under the axial pressure of the pressurized powertrain system 2, and realizes intelligent pressure maintenance through the following mechanism: when the pressure reaches 5-30MPa, the curved microstructure of the flexible pressure-maintaining plate 32 will produce gradient deformation, accurately matching the geometric differences on the surface of the solid-state battery.

[0059] Example 5

[0060] In one embodiment, if Figure 4As shown, the battery carrying system 4 includes: a layer assembly array 41, the layer assembly 411 is provided with a guide column through hole adapted to the guide column 16, and adjacent layer assemblies 411 are arranged on the guide column 16 through a guide sleeve; a plurality of mounting holes are provided at the top of the layer assembly 411, and the mounting holes are used to fix the PCB assembly 42; the PCB assembly 42 is respectively installed at both ends of the layer assembly 411.

[0061] Specifically, the layer assembly array 41 includes a plurality of layer assembly 411 (the specific number of layer assembly is determined according to the number of layers of the solid-state battery cell), which is made of aluminum alloy. The surface of the layer assembly 411 is anodized to make the layer assembly 411 have good wear resistance, corrosion resistance and low friction coefficient, thereby reducing damage to the surface of the solid-state battery. The layer assembly 411 is provided with a guide column through hole 4116.d adapted to the guide column 16 to ensure that the layer assembly 411 can slide and position smoothly on the guide column 16; adjacent layer assemblies 411 are arranged on the guide column 16 through a guide sleeve, and the spacing between adjacent layer assemblies 411 can be flexibly adjusted according to the design requirements of the solid-state battery cell. The position of the layer assembly 411 is fixed by adjusting the locking nut installed on the guide column 16 to ensure the stability and consistency of the solid-state battery cell during the removal and placement process. The PCB assembly 42 is respectively installed at both ends of the layer assembly 411, and a number of mounting holes are evenly arranged on the top of each layer assembly 411 for fixing the PCB assembly 412, and the position of the mounting holes of the PCB assembly 42 is changed to adapt to the size of solid-state batteries of different sizes; the PCB assembly 412 can realize the electrical connection and signal acquisition functions of the solid-state battery cell, and can also withstand a certain amount of pressure without damage or degradation of electrical performance, ensuring that the solid-state battery works normally under pressure and communicates stably with the external control system.

[0062] In a preferred embodiment, the first pressure detection device 43 and the second pressure detection device 44 both include an insulating pressure plate, a pressure sensor mounting plate and a pressure sensor; the insulating pressure plates are respectively arranged at the head and tail ends of the layer assembly array 41, and the insulating pressure plates are connected to the pressure sensors through the pressure sensor mounting plates.

[0063] Specifically, the first insulation pressure plate 431 and the second insulation pressure plate 441 are both made of ceramic fiber composite materials, have excellent thermal insulation properties, can effectively isolate the heat generated by the solid-state battery during operation from the influence of the pressure sensor, and ensure the accuracy of pressure detection. Their sizes are compatible with the layer assembly 411, and are fixed to the layer assembly 411 by screws to ensure that they will not shift or fall off during the force process. The first pressure sensor mounting plate 432 and the second pressure sensor mounting plate 442 are both made of carbon steel, used to install the first pressure sensor 433 and the second pressure sensor 443 respectively, and are tightly connected to the corresponding insulation pressure plate. The mounting plate and the insulation pressure plate are fixedly connected by countersunk screws, and the connection is firm and reliable. The mounting plate is provided with mounting holes that match the pressure sensor to ensure that the pressure sensor can be accurately installed and positioned, and the pressure exerted on the solid-state battery is accurately transmitted to the pressure sensor. The first pressure sensor 433 and the second pressure sensor 443 both use strain gauge pressure sensors, which can accurately detect the pressure exerted on the solid-state battery at different positions in real time and convert the pressure signal into an electrical signal and output it to the monitoring terminal of the control system. By real-time monitoring of the pressure at the head and tail ends of the layer assembly array 41, dynamic analysis and precise control of the pressure distribution of the solid-state battery can be achieved, ensuring that the solid-state battery is always in a suitable pressure environment during the production process, and ensuring the stability of the performance and quality of the solid-state battery.

[0064] In a preferred embodiment, Figures 9-10 As shown, the shelf assembly 411 includes: an aluminum shelf 4112, wherein a circulating water cooling pipe is provided inside the aluminum shelf 4112; a guide device 4113, wherein the guide device 4113 is fixedly installed at the top center position of the aluminum shelf 4112; a temperature control plate 4114, wherein the temperature control plate 4114 is attached to the upper surface of the aluminum shelf 4112; and a first temperature control detection device 4115, wherein the first temperature control detection device 4115 is built into the aluminum shelf 4112.

[0065] Specifically, a circulating water cooling pipe 4119 is provided inside the aluminum plate 4112 for circulating fluid to achieve certain heat exchange functions, etc. The guide device 4113 is fixedly installed at the top center of the aluminum plate 4112 to guide the battery. The temperature control plate 4114 is attached to the upper surface of the aluminum plate 4112 and can directly transfer heat with the aluminum plate 4112 to assist in temperature control. The first temperature control detection device 4115 is built into the aluminum plate 4112 and is used to monitor the temperature inside the aluminum plate 4112 in real time, so as to accurately control and monitor the temperature of the entire plate assembly.

[0066] In a preferred embodiment, the guide mount 4116 is symmetrically mounted at both ends of the aluminum layer 4112; the guide mount 4116 is provided with a guide column through hole 4116.d and a linear guide sleeve 4116.a; the guide column through hole 4116.d is embedded with the axial pressure sleeve 4116.b; the linear guide sleeve 4116.a axially passes through the axial pressure sleeve 4116.b; wherein, the axial pressure sleeve 4116.b realizes axial limitation of the linear guide sleeve 4116.a by interference fit.

[0067] Specifically, guide mounts 4116 are symmetrically mounted at both ends of aluminum layer 4112. Guide mounts 4116 are provided with guide post through-holes 4116.d and linear guide sleeves 4116.a. Axial pressure sleeves 4116.b are embedded in guide post through-holes 4116.d, and linear guide sleeves 4116.a axially penetrate through axial pressure sleeves 4116.b. Axial pressure sleeves 4116.b provide axial positioning of linear guide sleeves 4116.a through an interference fit. This structural design ensures a stable connection and smooth guided motion between guide mounts 4116 and related components, such as guide posts, improving the stability and reliability of the entire layer assembly during movement.

[0068] In a preferred embodiment, an isolation strip 4117 is embedded at the interface between the guide mount 4116 and the aluminum layer 4112. The isolation strip 4117 is embedded at the interface between the guide mount 4116 and the aluminum layer 4112. The isolation strip 4117 serves to isolate the guide mount 4116 from the aluminum layer 4112, reducing heat transfer between the two and preventing thermal deformation of the guide mount due to temperature fluctuations in the aluminum layer 4112. This ensures that the guide mount 4116 can function properly and maintains the accuracy and stability of the layer assembly.

[0069] In a preferred embodiment, a distance plate 4118 is installed on the temperature control plate 4114; wherein the edge of the PCB assembly 42 forms a surface contact clamping position with the distance plate 4118. Such a design can accurately position the PCB assembly 42, fix its position on the layer assembly, prevent it from shifting during subsequent processing or use, ensure good coordination between the PCB assembly 42 and the layer assembly 411 and other related components, and improve the working accuracy and reliability of the entire device; at the same time, the position of the PCB assembly 42 installed on the layer assembly 411 can be adjusted to accommodate solid-state batteries of different sizes.

[0070] In a preferred embodiment, circulating water cooling pipe 4119 is configured to circulate a cooling medium. The cooling medium can be water or other fluid with cooling properties. Circulating the cooling medium through circulating water cooling pipe 4119 effectively removes heat generated by the laminate assembly during operation, cooling the laminate assembly and ensuring that the laminate assembly and other components mounted thereon, such as PCB assemblies, can operate normally in an appropriate temperature environment, extending their service life and improving operational stability and reliability.

[0071] In a preferred embodiment, a clamping structure 4111 is provided at the middle position on both sides of the layer assembly 411, and the clamping structure 4111 is adapted to the distance chain 53 and is used to fix the position of the layer assembly 411; the clamping structure 4111 includes a pin shaft 4111.b and an open pin 4111.a, and the pin shaft 4111.b is inserted into the open pin 4111.a to fix the distance chain.

[0072] Specifically, a snap-fit ​​structure 4111 is symmetrically arranged in the middle position on both sides of the layer assembly 411, that is, the snap-fit ​​structure 4111 is arranged on the guide hanger 4116; the snap-fit ​​structure 4111 is made of steel, and its inner hole size is adapted to the diameter of the distance chain 53, and can clamp the distance chain 53. Through the adaptive connection between the snap-fit ​​structure 4111 and the distance chain 73, the position of the layer assembly 411 can be fixed at a specific position on the guide column 16, ensuring that the spacing between each layer assembly 411 during the stacking process of the solid-state battery cells remains constant, meeting the strict control requirements of the solid-state battery production process for the distance between the cell layers, thereby ensuring the consistency of the performance and quality of the solid-state battery. The upper and lower cotter pins cooperate to clamp the distance chain 53, and the pin shaft 4111.b is inserted into the cotter pin 4111.a to fix the distance chain 53.

[0073] In a preferred embodiment, Figure 11As shown, the PCB assembly 42 includes: a PCB board 421, a pressure assembly 422, a fixing seat 423 and a connecting seat 426; the fixing seat 423 is clamped at the upper end connection of the PCB board 421 and the pressure assembly 422; the connecting seat 426 is clamped at the lower end connection of the PCB board 421 and the pressure assembly 422; the pressure assembly 422 includes a tab pressure plate 4221 and a tab spring pressure plate 4222; the tab pressure plate 4221 and the tab spring pressure plate 4222 are in surface contact with each other. The pressure component 422 is connected to the connecting seat 426 by a sliding device 428, and the sliding device 428 is used to provide pressure when the pressure component 422 contacts the PCB board 421; the guiding and positioning system includes a tab guide block 424 and a cell guide block 425; the tab guide block 424 is installed on one side of the fixing seat 423; the cell guide block 425 is installed on the other side of the fixing seat 423; the tab guide block 424 adopts a conical guide structure to ensure that the cell enters the DMD paper packaging area smoothly. A cell in-position sensor 621 is provided on the cell guide block 425 for detecting the loading status of the cell. A second temperature control detection device 427 is embedded at the bottom of the PCB board 421 to monitor the working temperature rise of the PCB board 421.

[0074] Specifically, the tab guide block 424 and the cell guide block 425 in the guiding and positioning system ensure that the cell smoothly enters the DMD paper packaging area through the conical guide structure of the tab guide block 424, thereby improving production efficiency and packaging quality. The cell in-place sensor can accurately detect the loading status of the cell to ensure the smooth progress of subsequent processes. The second temperature control detection device 427 is embedded in the bottom end of the PCB board 421 to monitor the working temperature rise in real time, facilitate timely temperature regulation, ensure that the PCB assembly 42 operates stably in the appropriate temperature zone, and extend its service life. The tab pressure plate 4221 and the tab spring pressure plate 4222 in the pressure assembly 422 adopt surface contact connection, and the force is evenly distributed. Combined with the sliding device 428 connected to the connecting seat 426, a pressure-adjustable elastic contact structure is formed, which can flexibly adjust the pressure according to actual needs to meet different application scenarios. The fixing base 423 and the connecting base 426 are respectively clamped at the upper and lower joints between the first mounting plate and the pressure assembly 422, forming a cavity that can be inserted into the layer assembly. This also ensures a stable assembly, improves the overall structural stability, reduces vibration and displacement during operation, ensures the coordinated operation of various components, and enhances the reliability and durability of the equipment. At the same time, the pressure assembly 422 ensures that the pressure on the solid-state battery is uniform when the entire fixture is in operation.

[0075] Example 6

[0076] In one embodiment, if Figure 7As shown, the distance adjustment system 5 includes: a distance pull tab 51, which is fixed to the left side of the push plate 14; a chain adjustment module 52, which is a threaded pair adjustment mechanism consisting of an adjusting nut 521, a chain adjustment rod 522 and a chain adjustment seat 523; the chain adjustment module 52 is connected to the distance pull tab 51 through a distance chain 53.

[0077] Specifically, the distance pull tab 51 is made of steel plate, one end of which is firmly fixed to the left side of the push plate 14 by welding or bolt connection, and the other end is connected to the chain adjustment module 52 through a distance chain 53. The distance pull tab 51 can withstand large tensile forces and remain stable during the movement of the push plate 14, providing reliable mechanical support for distance adjustment. The chain adjustment module 52 is a threaded pair adjustment mechanism consisting of an adjusting nut 521, a chain adjustment rod 522 and a chain adjustment seat 523. The adjusting nut 521 fits tightly with the chain adjustment rod 522. By rotating the adjusting nut 521, the extension length of the chain adjustment rod 522 can be adjusted, thereby changing the distance between the distance pull tab 51 and the rear end plate 13, thereby achieving precise distance adjustment of the position of the battery carrying system 4 on the guide column 16. The chain adjustment seat 523 is fixedly installed on the inner side of the rear end plate 13, providing a stable installation base for the entire adjustment module, ensuring the stability and reliability of the adjustment process.

[0078] Example 7

[0079] In one embodiment, if Figure 4 As shown, the battery cell positioning system 6 includes a slide rail assembly 61 and a battery cell position sensor mounting plate 62; the slide rail assembly 61 is respectively arranged on the inner side of the front end plate 12 and the inner side of the rear end plate 13; the battery cell position sensor mounting plate 62 slides with the slide rail assembly 61 through a dovetail groove structure, and the layer plate assembly 411 is provided with a battery cell position sensor 621 that matches the battery cell position sensor mounting plate 62.

[0080] Specifically, the slide rail assembly 61 is respectively installed on the inner side of the front end plate 12 and the rear end plate 13, and its material is linear bearing steel to ensure that the slide rail has good wear resistance and linear motion performance. A dovetail groove structure is provided on the slide rail for sliding cooperation with the battery cell position sensor mounting plate 62. The slide rail is tightly fixed to the front end plate 12 and the rear end plate 13 by screws to ensure the accuracy and stability of its installation position, and provide a smooth guide rail path for the movement of the battery cell position sensor mounting plate 62. The battery cell position sensor mounting plate 62 is made of lightweight aluminum alloy, one end of which is slidably cooperated with the slide rail assembly 61 through a dovetail groove structure, and the other end is equipped with a battery cell position sensor 621. The battery cell position sensor 621 adopts a photoelectric sensor, which can monitor the position information of the battery cell in real time and feed back the position signal to the control system. When the battery cells on the laminate assembly 411 are stacked to the specified position, the battery cell position sensor 621 can accurately sense and send a signal. After receiving the signal, the control system promptly controls the pressurization powertrain system 2 to stop pressurization or perform corresponding adjustment operations to ensure the precise positioning of the battery cells and the synchronization of pressure application, thereby improving the degree of automation and quality control level of solid-state battery production.

[0081] Example 8

[0082] In one embodiment, if Figure 4 As shown, the position installation detection system 7 includes a sensor mounting bracket 71, a position sensor 721 and a position sensor mounting plate 73; the sensor mounting bracket 71 is provided with an arc-shaped mounting groove adapted to the pull rod assembly 11; the position sensor 721 is fixed to the sensor mounting bracket 71 through the sensor mounting plate 72; the position sensor mounting plate 73 is fixed to the left side of the push plate 14, and cooperates with the position sensor 721 to detect the position of the push plate movement to ensure that there is no overpressure.

[0083] Specifically, the sensor mounting bracket 71 is made of aluminum alloy and is provided with an arc-shaped mounting groove adapted to the pull rod assembly 11. It is fixed to the pull rod assembly 11 by bolts and can be flexibly adjusted along the circumference of the pull rod assembly 11 to adapt to different detection requirements. The design of the sensor mounting bracket 71 ensures the installation stability and reliability of the position sensor 721. At the same time, its arc-shaped structure can alleviate the impact of the slight deformation of the pull rod assembly 11 during the force process on the sensor installation to a certain extent, thereby ensuring the measurement accuracy of the position sensor 721. The position sensor 721 uses a magnetic grating position sensor, which is firmly fixed to the sensor mounting bracket 71 through the sensor mounting plate 72. The probe of the position sensor 721 is directly opposite to the position sensor mounting plate 73 installed on the left side of the push plate 14, and the distance between the two is maintained within an appropriate range to ensure that the position sensor 721 can accurately detect the displacement of the push plate 14, thereby realizing accurate detection and control of the position of the solid-state battery. The position sensor mounting plate 73 is made of stainless steel, and its surface is polished to improve the strength and stability of its reflected signal, ensuring that the position sensor 721 can stably and reliably obtain position information. The position sensor mounting plate 73 is fixed to the left side of the push plate 14 and is tightly connected to the push plate 14 by screws to ensure the accuracy and stability of its installation position. The position sensor mounting plate 73 and the position sensor 721 cooperate with each other to form a closed-loop position installation detection system 7, which can monitor the displacement of the push plate 14 in real time and feed back the displacement signal to the control system. The position installation detection system can protect the extreme positions of the push plate of the pressure fixture to ensure that there is no overpressure. The control system compares and analyzes the displacement signal with the pre-set process parameters, and adjusts the output of the pressurized powertrain system 2 in time to achieve precise control of the solid-state battery pressure application process, ensuring that the solid-state battery is always in the optimal pressure position during the production process, and improving the performance and quality of the solid-state battery.

[0084] The working principle of the high-pressure clamp of the present invention is as follows: During the solid-state battery production process, the battery cell is first placed on the layer assembly 411 of the battery support system 4, and the position of the battery cell is initially positioned by the battery cell positioning system 8. After the pressurized powertrain system 2 is activated, the servo drive module 21 drives the electric cylinder actuator module 22 to move along the guide column 16 toward the solid-state battery, and the correction component 3 applies pressure evenly to the surface of the solid-state battery. During the pressure application process, the first pressure detection device 43 and the second pressure detection device 44 both monitor the pressure applied to the solid-state battery in real time and feed the pressure signal back to the control system. The control system compares the pressure signal with the preset pressure value and adjusts the output of the servo drive module 21 to better control the stroke of the electric cylinder actuator module 22, thereby achieving closed-loop control of the solid-state battery pressure and ensuring that the solid-state battery is always in a stable and uniform high-pressure environment. At the same time, the fixed distance adjustment system 7 better adjusts the position of the battery support system 4 on the guide column 16 according to the size and process requirements of the solid-state battery, ensuring that the interlayer distance of the solid-state battery cells during the stacking process meets the design requirements. The position detection system 9 monitors the position changes of the push plate 14 in real time, further ensuring the accuracy and stability of pressure application. The expansion and positioning mechanism ensures that the 16-layer assembly array of guide columns is inserted throughout the entire process, while also ensuring a tight connection with the front and rear end plates. This prevents equipment failure or abnormal pressure application caused by loose pull rods, providing a solid foundation for the normal operation of the entire large pressure clamp.

[0085] The specific working process of the high-pressure fixture is as follows: the equipment is preheated to the set temperature of the solid-state battery packaging process; the solid-state battery to be packaged is placed in the preset workstation of the layer assembly; the battery loading status is automatically detected by the battery cell in-place sensor integrated in the layer assembly to confirm that the workstation is fully loaded; the pressurized powertrain system is started to drive the push plate to move forward; the correction component corrects the push plate displacement trajectory in real time to ensure that the pressure direction is vertical; the layer assembly slides precisely along the guide column, pressing the battery to the set pressure value and entering the pressure holding state; the charging and discharging power supply is started and the preset charging and discharging protocol is executed; the temperature, pressure and current / voltage are adjusted synchronously and dynamically to achieve multi-parameter closed-loop control; after the process is completed, the pressurized powertrain system is reversed; the distance chain component accurately pulls the layer assembly back to the initial design position; the packaged solid-state battery is removed; the equipment performs sensor calibration, mechanism reset and abnormal diagnosis, and is ready for the next cycle.

[0086] The application of high-pressure clamps in the production of solid-state batteries can achieve the application of high pressure on solid-state batteries (up to 150 tons), and through a variety of detection and control methods to ensure the uniformity and stability of pressure, effectively improving the solid-state battery cell compaction density and interface contact performance, thereby improving the energy density, cycle life and overall performance stability of solid-state batteries. At the same time, positioning and adjustment functions have been added to ensure that the accuracy and consistency of solid-state battery production are improved, the defective rate of solid-state batteries is reduced, and production efficiency and economic benefits are improved. At the same time, the structural design of the device is reasonable and can adapt to the continuous operation requirements of large-scale production of solid-state batteries, providing strong technical support and equipment guarantee for the development of the solid-state battery industry.

[0087] For other structures of the high pressure clamp described in this embodiment, refer to the prior art.

[0088] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A large pressure fixture, characterized in that, The high pressure fixture includes: A large pressure clamp body, the large pressure clamp body comprising a plurality of tie rod assemblies, a front end plate, a push plate and a rear end plate, the front end plate being connected to the rear end plate via the plurality of tie rod assemblies; A pressurized powertrain system, the pressurized powertrain system passing through the front end plate and connected to a deviation-correcting assembly, the deviation-correcting assembly being connected to the push plate; The deviation-correcting assembly is composed of an output connection plate, a flexible pressure-maintaining plate, and a fixed connection plate connected in sequence; A battery carrying system, the battery carrying system is arranged between the push plate and the rear end plate, the battery carrying system includes a layer assembly array consisting of a plurality of layer assembly, and each layer assembly has PCB assemblies symmetrically mounted on both sides; The front end of the layer assembly array is connected to the push plate through a first pressure detection device, and the rear end of the layer assembly array is connected to the rear end plate through a second pressure detection device; A guide column, which sequentially passes through the front plate, linear bearing, push plate, battery support system and rear plate to form a coaxial guide structure, and the axis of the guide column and the output axis of the pressurized powertrain system are located in the same plane; When the pressurized powertrain system applies axial pressure to the battery supporting system through the correction component, the flexible pressure maintaining plate generates controllable elastic deformation to adapt to the shape of the solid-state battery.

2. A large pressure clamp according to claim 1, characterized in that: The layer plate assembly is provided with a guide post through hole adapted to the guide post, and adjacent layer plate assemblies are arranged on the guide post through a guide sleeve; The top of the layer assembly is provided with a plurality of mounting holes, and the mounting holes are used to fix the PCB assembly; The PCB components are respectively installed at both ends of the layer board component.

3. A large pressure fixture according to claim 2, characterized in that: The layer plate assembly comprises: Aluminum layer plates, wherein a plurality of circulating water cooling pipes are provided inside the aluminum layer plates; A guide device, wherein the guide device is fixedly installed at the top center position of the aluminum layer plate; A temperature control plate, the temperature control plate is attached and installed on the upper surface of the aluminum layer; a first temperature control detection device, wherein the first temperature control detection device is built into the aluminum layer plate; Guide hangers, which are symmetrically mounted at both ends of the aluminum plate, and isolation strips are embedded at the connection interface between the guide hangers and the main body of the aluminum plate; A distance plate, the distance plate being mounted on the temperature control plate; The edge of the PCB assembly and the distance plate form surface contact and clamping positioning.

4. A large pressure clamp according to claim 1, characterized in that: The first pressure detection device and the second pressure detection device each include a heat-insulating pressure plate, a pressure sensor mounting plate and a pressure sensor; The heat-insulating pressure plates are respectively arranged at the head and tail ends of the layer plate assembly array, and the heat-insulating pressure plates are connected to the pressure sensor through the pressure sensor mounting plate.

5. The large pressure clamp according to claim 1, characterized in that: a distance adjustment system, one end of which is fixed to the left side of the push plate, and the other end of which is fixed to the inner side of the rear end plate; The distance adjustment system includes a distance pull piece and a chain adjustment module; The distance pull tab is fixed to the left side of the push plate; The chain adjustment module is a threaded pair adjustment mechanism consisting of an adjustment nut, a chain adjustment rod and a chain adjustment seat; Wherein, the chain adjustment module is connected to the distance pull piece through a distance chain.

6. A high pressure clamp according to claim 5, characterized in that: A clamping structure is provided at the middle position of both sides of the layer plate assembly, and the clamping structure is adapted to the distance chain and is used to fix the position of the layer plate assembly.

7. A large pressure fixture according to claim 1, characterized in that: include: A cell positioning system, comprising a slide rail assembly and a cell position sensor mounting plate; The slide rail assemblies are respectively arranged on the inner side of the front end plate and the inner side of the rear end plate; The battery cell position sensor mounting piece is slidably matched with the slide rail assembly through a dovetail groove structure, and the layer plate assembly is provided with a battery cell position sensor that matches the battery cell position sensor mounting piece.

8. The large pressure fixture according to claim 1, characterized in that: include: A position installation detection system, comprising a sensor mounting bracket, a position sensor, and a position sensor mounting plate; The sensor mounting bracket is provided with an arc-shaped mounting groove adapted to the pull rod assembly; The position sensor is fixed to the sensor mounting bracket via a sensor mounting plate; The position sensor mounting piece is fixed on the left side of the push plate and cooperates with the position sensor to detect the battery position.

9. The large pressure clamp according to claim 1, characterized in that: The front end plate and the rear end plate are both provided with stepped through holes adapted to the pull rod assembly; The pull rod assembly passes through the stepped through hole of the front end plate and the stepped through hole of the rear end plate in sequence; After passing through the front end plate and the rear end plate, the pull rod assembly is fixed to the front end plate and the rear end plate respectively through a double nut locking structure; An expansion and positioning mechanism, the expansion and positioning mechanism comprising an expansion sleeve disposed between the front end plate and the guide post, and an expansion sleeve disposed between the rear end plate and the guide post; The inner hole of the expansion sleeve is provided with an interference fit with the outer surface of the guide column; One end of the guide post is connected to the front end plate via a tightening sleeve, and the other end of the guide post is connected to the rear end plate via a tightening sleeve.

10. The large pressure fixture according to claim 1, characterized in that: The pressurized powertrain system includes: A servo drive module, which is composed of a transmission chain consisting of a servo motor, a reduction box, and a gear box; The electric cylinder execution module includes an electric cylinder body base connected to the output shaft of the gear box, and the output end of the electric cylinder body base is connected to the correction component through a floating ball head mechanism. Wherein, the floating ball head mechanism is provided with an axial pressure plate limiting structure.

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