A pressure control device

Abstract

The utility model discloses a pressure control device, and the pressure control device provides stable support through the bearing frame, and the pull rod subassembly connects the front and rear end plates, forms the stable frame structure, and the pressurization power assembly system transmits power to the deviation rectifying subassembly, and the direction of pressure is corrected through the deviation rectifying subassembly to avoid the uneven stress caused by pressure deviation, the front end plate, linear bearing, push plate are sleeved on the guide column, and the linear bearing is fixedly matched with the push plate through the nut, guarantees the linearity and stability of movement, thereby solve the problem in the prior art, realize the even pressure of battery and pressure stability control.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical engineering and automation technical field, concretely relates to a pressure control device. BACKGROUND

[0002] As a new generation of high energy density energy storage device, the precise assembly of the core component of the solid-state battery puts strict requirements on the manufacturing process. In the lamination assembly and isostatic pressing forming process of the battery component, the performance of the pressure control system directly determines the electrochemical performance and safety characteristics of the battery. The prior art has the following technical defects:

[0003] Traditional pressure devices mostly adopt open frame structures, and the load-bearing components thereof are prone to creep deformation under the action of continuous high pressure load. Taking a four-column frame as an example, the connecting parts of the columns and the beams will appear micro-deformation under the action of continuous high pressure, resulting in the inclination deviation of the pressurization plane. Such deformation will directly damage the uniformity of the interface contact between the battery pole piece and the solid-state electrolyte, causing local current density difference and triggering abnormal growth of lithium dendrites in the battery charging and discharging process. SUMMARY

[0004] In order to overcome the technical defects of insufficient pressure control of the existing pressure clamp in the solid-state battery assembly process, the utility model provides a pressure control device.

[0005] In order to solve the above problems, the utility model is realized according to the following technical scheme:

[0006] The pressure control device comprises a load-bearing frame, a front end plate, a push plate and a rear end plate, wherein the load-bearing frame comprises a plurality of pull rod assemblies; the front end plate is connected to the rear end plate through the plurality of pull rod assemblies; a deviation rectifying assembly is installed on the push plate; a pressurizing power assembly system is connected to the deviation rectifying assembly through the front end plate; a battery carrying system is used for placing a battery; the front end plate, the push plate, the battery carrying system and the rear end plate are sequentially sleeved on a guide column; a linear bearing is arranged on the push plate and connected to the push plate.

[0007] Preferably, the pressurizing power assembly system comprises a servo drive module composed of a transmission chain of a servo motor, a reduction box and a gear box; an electric cylinder execution module comprises an electric cylinder body base connected to an output shaft of the gear box, and the output end of the electric cylinder body base is connected to the deviation rectifying assembly through a floating ball head mechanism; wherein the floating ball head mechanism is provided with an axial pressure plate limiting structure.

[0008] Preferably, the deviation rectifying assembly is sequentially connected by an output connecting plate, a flexible pressure maintaining plate and a fixed connecting plate; wherein the flexible pressure maintaining plate is made of rubber material.

[0009] Preferably, the battery carrying system comprises: an array of layer plate assemblies, which are formed by a plurality of layer plate assemblies arranged on guide columns through guide sleeves, each layer plate assembly being provided with a guide column through hole adapted to the guide column; the top end of each layer plate assembly is provided with a plurality of mounting holes for fixing and mounting a PCB assembly; and the PCB assembly is mounted at the two ends of the layer plate assembly.

[0010] Preferably, the first pressure detection device is connected to the leading end of the array of layer plate assemblies at one end, and connected to the inner side of the push plate at the other end; and the second pressure detection device is connected to the trailing end of the array of layer plate assemblies at one end, and connected to the rear end plate at the other end.

[0011] Preferably, the first pressure detection device and the second pressure detection device each comprise: a heat insulation pressure plate arranged at the leading end and the trailing end of the array of layer plate assemblies, and connected to the pressure sensor through the pressure sensor mounting plate.

[0012] Preferably, the distance adjusting system is fixed to the left side of the push plate at one end, and fixed to the inner side of the rear end plate at the other end.

[0013] Preferably, the distance adjusting system comprises: a distance pull tab fixed to the left side of the push plate; a chain adjusting module comprising a screw thread pair adjusting mechanism composed of an adjusting nut, a chain adjusting rod and a chain adjusting seat; and the chain adjusting module is connected to the distance pull tab through a distance chain.

[0014] Preferably, the position installation detection system comprises a sensor mounting bracket, a position sensor and a position sensor mounting sheet; 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; and the position sensor mounting sheet is fixed to the left side of the push plate and cooperates with the position sensor to detect the position of the push plate.

[0015] Compared with the prior art, the battery carrying system has the following beneficial effects:

[0016] The pressure control device provides stable support through the bearing frame, the pull rod assembly connects the front and rear end plates to form a stable frame structure; the pressurizing power assembly system transmits power to the deviation rectifying assembly, and the direction of pressure is corrected through the deviation rectifying assembly to avoid uneven stress caused by pressure deviation; the front end plate, the linear bearing and the push plate are sleeved on the guide column, the linear bearing is screw-connected with the push plate to ensure the linearity and stability of movement, thereby solving the problems in the prior art and realizing uniform pressurization and stable pressure control of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0017] The specific embodiments of the utility model will be further explained in detail below in combination with the drawings, wherein:

[0018] Figure 1 It is a three-dimensional structure schematic view of a large pressure clamp machine of the utility model.

[0019] Figure 2 It is an exploded view of a large pressure clamp machine of the utility model.

[0020] Figure 3 It is a structure schematic view of a crown block track of the utility model.

[0021] Figure 4 It is a structure schematic view of a large pressure clamp of the utility model.

[0022] Figure 5 It is a front view of a large pressure clamp of the utility model.

[0023] Figure 6 It is a side view of a large pressure clamp of the utility model.

[0024] Figure 7 It is a Figure 4 enlarged view of I in the utility model.

[0025] Figure 8 It is a structure schematic view of a pressurizing power assembly system of the utility model.

[0026] Figure 9 It is a structure schematic view of a layer plate assembly of the utility model. Figure 1 .

[0027] Figure 10 It is a structure schematic view of a layer plate assembly of the utility model. Figure 2 .

[0028] Figure 11 It is a structure schematic view of a PCB assembly of the utility model.

[0029] Figure 12 It is a structure schematic view of a deviation rectifying assembly of the utility model.

[0030] In the figure: 1-large pressure clamp body; 11-pull rod assembly; 12-front end plate; 13-rear end plate; 14-push plate; 141-linear bearing; 15-tight sleeve; 16-guide column; 2-pressurization power assembly system; 21-servo drive module; 211-servo motor; 212-reduction box; 213-gear box; 22-electric cylinder execution module; 221-electric cylinder body base; 222-floating ball head mechanism; 2221-axial pressing plate limiting structure; 3-correction assembly; 31-output connecting plate; 32-flexible pressure maintaining plate; 33-fixed connecting plate; 4-battery bearing system; 41-lamella assembly array; 411-lamella assembly; 4111-clamping structure; 4111.a-oval pin; 4111.b-pin shaft; 4112-aluminum lamella; 4113-guiding device; 4114-temperature control plate; 4115-first temperature control detection device; 4116-guiding hanging seat; 4116.a-linear guiding sleeve; 4116.b-axial pressing sleeve plate; 4117-isolation strip; 4118-distance plate; 4119-circulating water cooling pipeline; 42-PCB assembly; 421-PCB board; 422-pressure applying assembly; 4221-tab pressing plate; 4222-tab spring pressing plate; 423-fixed seat; 424-tab guiding block; 425-battery cell guiding block; 426-connecting seat; 427-second temperature control detection device; 428-sliding device; 43-first pressure detection device; 431-first heat insulation pressing plate; 432-first pressure sensor mounting plate; 433-first pressure sensor; 44-second pressure detection device; 441-second heat insulation pressing plate; 442-second pressure sensor mounting plate; 443-second pressure sensor; 5-distance adjusting system; 51-distance pulling piece; 52-chain adjusting module; 521-adjusting nut; 522-chain adjusting rod; 523-chain adjusting seat; 53-distance chain; 6-battery cell positioning system; 61-sliding rail assembly; 62-battery cell position inductor mounting piece; 621-battery cell position inductor; 7-position installation detection system; 71-sensor installation support; 72-sensor installation plate; 721-position sensor; 73-position sensor mounting piece; 8-first frame mechanism; 81-emergency air outlet; 82-display device; 83-protection device; 9-second frame mechanism; 91-moving device; 92-charging and discharging power supply; 10-crown rail; 101-crown manipulator. DETAILED DESCRIPTION

[0031] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used for explaining and interpreting the utility model, and are not used for limiting the utility model.

[0032] As Figures 1-12 indicated, the utility model discloses a pressure control device.

[0033] Solid-state batteries are considered as a strong candidate for next-generation 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. Research has shown that solid-state batteries need to ensure uniform and dynamically controllable pressure during charging and discharging, which is a key technical means to improve interface contact stability and inhibit lithium dendrite growth. The present application innovatively designs the existing battery clamp and integrates a high-precision pressure servo control system, effectively solving the problems of uniformity control and dynamic response speed optimization during pressure application. The pressure clamp equipment used in the present application can significantly improve the interface stability of solid-state batteries and prolong the cycle life of the batteries, providing key process equipment support for the research and mass production of solid-state batteries.

[0034] The pressure control device of the utility model is designed specially for the cell stacking and pressure applying link in the solid-state battery manufacturing process, aiming to realize stable, uniform and controllable high pressure on the cell, so as to ensure the tightness and stability of the internal structure of the solid-state battery, and further improve the battery performance and quality. The pressure clamp platform adopts integrated design of power supply, pressure clamp and rack, has the advantages of compact structure, small floor area, convenient maintenance, high charging and discharging efficiency, etc., and can flexibly adapt to laboratory research and development needs. At the same time, the pressure clamp platform supports production line level expansion application, through parallel deployment of multiple devices, combined with the crane manipulator to realize automatic taking and placing of the battery, a highly automated solid-state battery mass production line can be built, fully meeting the charging and discharging needs of various soft package batteries in pressure formation, pressure container, pressure OCV / DCIR test and other process links, and helping to accelerate the industrialization process of solid-state batteries. Embodiment 1

[0035] As shown in Figures 1-2 A large pressure clamp machine, comprising: a large pressure clamp body 1 for applying pressure to package a solid-state battery; a second frame mechanism 9 on which the large pressure clamp body 1 is installed; a first frame mechanism 8 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 inside the second frame mechanism 9, and the cavity is used to place the charging and discharging power supply 92, and the charging and discharging power supply 92 is electrically connected with the large pressure clamp body 1; an up-down material loading platform; the up-down material loading platform is placed near the pressure clamp platform, and is used for manual loading and unloading.

[0036] Specifically, the large pressure clamp body 1 as the execution core of the large pressure clamp machine is responsible for applying uniform and dynamically controllable pressure to the battery. Through the precise pressure control system, the pressure environment under different working conditions can be simulated to ensure the stability and safety of the battery during charging and discharging.

[0037] In an embodiment, the second frame mechanism 9 is equipped with a moving device 91 at the bottom, which facilitates the carrying and positioning of the device, and can be fixed to the ground by welding or bolt connection, etc., to ensure the stability of the device. The moving device can be a roller or a forklift hole, etc.

[0038] In an embodiment, the surface of the feeding and discharging platform is paved with anti-skid pads to ensure the stability of the workers during operation. The anti-skid pads are made of rubber material and have anti-skid texture on the surface, which can effectively increase the friction between the workers and the platform to prevent accidents such as slipping.

[0039] In a preferred embodiment, the first frame mechanism 8 is integrated with a harmful gas monitoring system, which includes a gas concentration sensor and an emergency treatment module; the gas concentration sensor is installed on the inner wall of the first frame mechanism for detecting the concentration of harmful substances; the emergency treatment module is used to detect that the concentration of harmful substances exceeds the preset threshold, and to start the emergency exhaust device. When the concentration exceeds the warning limit, the emergency treatment module will immediately send a signal to the control system to trigger the start of the emergency exhaust device.

[0040] In a preferred embodiment, the emergency exhaust device includes a plurality of emergency exhaust ports, which are arranged at the top end of the first frame mechanism 8, and the emergency exhaust ports are started by electric or manual control for reducing the concentration of harmful substances.

[0041] Specifically, the top end of the first frame mechanism 8 is provided with a plurality of emergency exhaust ports 81, which can be automatically started to reduce the concentration of harmful substances when the detection device detects that the concentration of harmful substances in the pressure clamp platform exceeds the warning limit, to ensure the safety of production. The emergency exhaust ports 81 are controlled by electric or manual control, and when the concentration of harmful substances exceeds the warning limit, the emergency exhaust ports 81 can be automatically or manually started to reduce the concentration of harmful substances. The emergency exhaust ports 81 are designed reasonably, which can effectively exhaust harmful gases.

[0042] In a preferred embodiment, the first frame mechanism 8 is provided with a protection device 83, which includes a safety door and a safety door lock connected to a safety module for timely alarm and shutdown when detecting abnormality of the large pressure clamp machine, which can effectively prevent safety hazards.

[0043] In a preferred embodiment, the first frame mechanism 8 is provided with a display device 82 for displaying related parameters of the pressure clamp platform and whether the material is lacking, etc. The display device 82 can use a display screen or an industrial computer, etc.

[0044] In a preferred embodiment, as shown in FIG. 8, the first frame mechanism 8 is provided with a display device 82 for displaying related parameters of the pressure clamp platform and whether the material is lacking, etc. The display device 82 can use a display screen or an industrial computer, etc. Figure 3As shown, the crown block track 10 extends along the length direction of the plurality of large pressure clamp machines arranged side by side, and is installed on the inner top surface of the first frame mechanism 8 of the plurality of large pressure clamp machines in a continuous transverse manner; the crown block track 10 is provided with a crown block manipulator 101 for realizing automatic feeding and discharging of the large pressure clamp body 1, thereby constructing a highly automated solid-state battery mass production line, meeting the large-scale production demand, and solving the problem of slow manual feeding and discharging rate.

[0045] Specifically, the crown block track 10 is directly and rigidly fixed on the inner top surface of the first frame mechanism 8 of each device, ensuring that the track has sufficient load-bearing stiffness and stability. The track is erected above the device operation area (such as the pressure clamp body, the feeding and discharging station) at a certain height, creating an unobstructed overhead moving channel for the crown block manipulator 101 covering all the side-by-side devices. The track is directly integrated on the top of the first frame, without the need for additional ground or inter-device passage space, solving the space bottleneck of material transfer when multiple devices are arranged side by side. A continuous track spans all the devices, so that a single crown block manipulator can serve the entire row of clamp machines, realizing efficient material flow under high-density device layout. The crown block manipulator 101 can freely and accurately move to the top of any clamp machine on the track, performing the actions of grabbing, lifting, horizontally transferring, lowering, and placing the large pressure clamp body 1 (or the battery cell), completely replacing manual feeding and discharging. The manipulator can quickly switch between adjacent devices or perform parallel tasks (such as one taking material while the other discharging material) on multiple devices according to the production rhythm, greatly improving the overall production efficiency. The crown block track 10 is continuously fixed on the top of the first frame mechanism of each large pressure clamp machine arranged side by side, creating a high-level, through, and highly rigid automated logistics channel. This design fully utilizes the device body structure space, realizes high automation, high efficiency, and intrinsic safety of material handling between multiple devices, and is a key innovative layout for realizing unmanned / less manned feeding and discharging of compact production lines. Embodiment 2

[0046] In one embodiment, as Figure 4As shown, a large pressure clamp includes a pressure clamp body 1, the pressure clamp body 1 includes a bearing frame, the bearing frame includes a plurality of pull 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 pull rod assemblies 11; a deviation correction assembly 3 is installed on the push plate 14; a pressurizing power assembly system 2 is connected to the deviation correction assembly 3 through the front end plate 12; a battery bearing system 4 has a first end connected to the inner side of the push plate 14 through a first pressure detection device 43, and a tail end connected to the rear end plate 13 through a second pressure detection device 44; the battery bearing system 4 is used to place a battery; wherein the front end plate 12, the push plate 14, the battery bearing system 4 and the rear end plate 14 are sequentially sleeved on a guide column to form a coaxial guide structure, and the axis of the guide column 16 and the output axis of the pressurizing power assembly system 2 are located in the same plane; a linear bearing 141 is arranged on the push plate 14, and the linear bearing 141 is connected to the push plate 14. A fixed distance adjusting system 5 has one end fixed to the left side of the push plate 14 and the other end fixed to the inner side of the rear end plate 13.

[0047] 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 uses a double-nut locking structure, and the calculated and controlled force of the nuts ensures that the front end plate 12 and the rear end plate 13 will not shift or deform under load, providing a stable mounting and support platform for the internal systems, components, and solid-state battery of the pressure clamp device. Double guide columns are provided inside the tie rod assembly 11, parallel to and symmetrically arranged. The front end plate 12, as the front part of the load-bearing frame, is installed at the very front of the guide column 16, providing the mounting foundation and support platform for subsequent components. A linear bearing sleeve 141 is located on the guide column 16, its main function being to provide high-precision linear motion guidance for the push plate. It greatly reduces the friction between the push plate 14 and the guide column during movement, making the movement of the push plate 14 smoother and more stable, thereby ensuring the stability of the pressurization process and preventing the push plate from jamming or experiencing pressure fluctuations due to excessive friction. Linear bearing 141 is connected to push plate 14 via an interference fit, ensuring a tight fixation and eliminating relative movement between them. This precisely guides the movement of push plate 14 as a linear motion along guide post 16. The push plate, located between linear bearing 14 and battery support system 4, primarily functions to uniformly transmit the pressure applied by pressurization powertrain system 2 to battery support system 4. The shape and size of push plate 14 are matched to the force-bearing surface of battery support system 4, effectively dispersing concentrated force into uniform pressure. This prevents excessive localized stress on battery support system 4, ensuring uniform pressure on the battery and improving assembly quality and performance stability. Guided by linear bearing 141, push plate 14 moves linearly along guide post 16, ensuring the straightness and stability of its movement. This makes the pressurization process more controllable, allowing it to proceed according to a predetermined pressurization path and speed, improving accuracy and consistency, and playing a crucial role in quality control for different batches of batteries. The battery support system 4 is the part that directly contacts the battery. Its main function is to support and position the battery, providing a stable support platform. It is typically customized according to the shape and size of the battery to ensure that the battery maintains the correct position and orientation during pressurization, preventing displacement or tilting under pressure, thus ensuring the integrity and consistency of the battery's internal structure. The rear end plate 13, as the rear part of the load-bearing frame, is installed at the very end of the guide column 16, providing structural support and limiting for the entire device. Together with the front end plate 12 and the tie rod assembly 11, it forms a stable load-bearing frame, ensuring the rigidity and strength of the entire pressure control device and preventing overall deformation or instability during pressurization.The presence of the rear end plate 13 restricts the range of motion of components such as the push plate on the guide column 16, preventing the push plate from retracting excessively and causing the battery support system 4 to disengage from the pressurization position. This ensures that the entire pressurization process is carried out within the predetermined range of motion, improving the safety and reliability of the device. At the same time, the central axis of the guide column 16, the powertrain output axis, and the other two lines are in the same plane, solving the problem of frame deformation caused by off-center loading under high pressure conditions.

[0048] 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 passes through the stepped through holes of the front end plate 12 and the rear end plate 13 in sequence; 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 by a double nut top locking structure; the tensioning and positioning mechanism includes a tensioning sleeve 15 disposed between the front end plate 12 and the guide post 16 and a tensioning sleeve 15 disposed between the rear end plate 13 and the guide post 16; the inner hole of the tensioning sleeve 15 is provided with an interference fit with the outer surface of the guide post 16; one end of the guide post 16 is connected to the front end plate 12 through the tensioning sleeve 15, and the other end of the guide post 16 is connected to the rear end plate 13 through the tensioning sleeve 15.

[0049] Specifically, the stepped through holes of the front plate 12 and the rear plate 13 accommodate the threaded section of the tie rod assembly 11 in their large-diameter sections, while the small-diameter sections provide axial restraint, forming a dual function of "positioning + connection". A double-nut counter-rotating structure (such as two M16 nuts screwed in opposite directions) is adopted, utilizing the friction between the threads to eliminate the risk of loosening caused by vibration. This ensures that the tie rod assembly 11 will not experience axial displacement or loosening when subjected to the tension and pressure generated during the operation of the high-pressure fixture, guaranteeing the structural stability and reliability of the entire device and providing a stable processing environment for solid-state battery production. The inner hole of the expansion sleeve 15 and the guide post 16 adopt an H7 / S6 grade interference fit, generating radial pressure through hydraulic expansion or mechanical pressing to form a keyless connection. This design achieves zero-backlash transmission, ensuring the axial / radial positioning accuracy of the guide post 16. The conical structure of the expansion sleeve 15 allows for fine-tuning in the loosened state. When shelf misalignment needs to be calibrated, the tension force is released using hydraulic tools. The guide post 16 can automatically eliminate the gap after being re-tightened by disassembling the tension positioning mechanism. The tension positioning mechanism can also be disassembled to replace worn guide sleeves and other components; this disassembly is not required when adapting to batteries of different sizes. Furthermore, this design facilitates replacement of shelves worn due to frequent expansion and contraction during long-term use, improving the system's maintainability and adaptability. Example 3

[0050] In one embodiment, such as Figure 8As shown, the pressurizing power assembly system 2 comprises a servo drive module 21 composed of a transmission chain of a servo motor 211, a reduction box 212 and a gear box 213; and an electric cylinder execution module 22 comprising an electric cylinder body base 221 connected with an output shaft of the gear box 213, and an output end of the electric cylinder body base 221 is connected with the deviation rectifying assembly 3 through a floating ball head mechanism 222, wherein the floating ball head mechanism 222 is provided with an axial pressing plate limiting structure 2221.

[0051] In detail, the servo drive module 21 is composed of a transmission chain of the servo motor 211, the reduction box 212 and the gear box 213. The servo motor 211 is provided with 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 realize stable and controllable pressure applied to the solid-state battery and meet the requirements of the solid-state battery on pressure loading speed in different process stages. The electric cylinder body base 221 is connected with the output shaft of the gear box 213 in a spline connection mode, so as to ensure the stability and reliability of power transmission. The output thrust of the electric cylinder body base 221 can reach 150 tons, and the output end thereof is connected with the deviation rectifying assembly 3 through the floating ball head mechanism 222. The floating ball head mechanism 222 can automatically adjust within a certain angle range, effectively compensate for possible slight angle deviation of the solid-state battery or the large pressure clamp itself, and ensure uniform application of pressure. Meanwhile, the floating ball head mechanism 222 is also provided with the axial pressing plate limiting structure 2221, which can limit the displacement of the axial pressing plate in the axial direction, prevent equipment damage or abnormal pressure application caused by excessive displacement, and the limiting precision is within an appropriate range. Embodiment 4

[0052] In one embodiment, as shown in Figure 12 The deviation rectifying 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.

[0053] In detail, the correction assembly 3 consists of an output connecting plate 31, a flexible pressure-holding plate 32 with a special elastic corrugated plate structure, and a fixed connecting plate 33, which are sequentially connected by bolts. Under the pressure applied by the pressurized powertrain system 2, the flexible pressure-holding plate 32 undergoes elastic deformation to maintain pressure against the solid-state battery surface, thus automatically adapting to subtle geometric differences on the solid-state battery surface and ensuring uniform pressure distribution. Simultaneously, the correction assembly 3 achieves adaptive pressure control through the rubber-material flexible pressure-holding plate 32, effectively alleviating localized stress concentration and improving the contact stability of the battery interface. Under the axial pressure of the pressurized powertrain system 2, the flexible pressure-holding plate 32 undergoes controllable elastic deformation, achieving intelligent pressure holding through the following mechanism: when the pressure reaches 5-30 MPa, the curved microstructure of the flexible pressure-holding plate 32 undergoes gradient deformation, precisely matching the geometric differences on the solid-state battery surface. Example 5

[0054] In one embodiment, such as Figure 4 As shown, the battery carrying system 4 includes: a layer plate assembly array 41, the layer plate assembly 411 having guide post through holes adapted to the guide post 16, and adjacent layer plate assemblies 411 being mounted on the guide post 16 via guide sleeves; the top end of the layer plate assembly 411 having a plurality of mounting holes for fixing PCB assemblies 42; the PCB assemblies 42 being respectively mounted on both ends of the layer plate assembly 411.

[0055] Specifically, the layer assembly array 41 includes several layer assemblies 411 (the specific number of layer assemblies is determined according to the number of layers of the solid-state battery cell). These assemblies are made of aluminum alloy and undergo anodizing treatment on their surfaces, giving them good wear resistance, corrosion resistance, and a low coefficient of friction, thereby reducing damage to the surface of the solid-state battery. Each layer assembly 411 has a guide post through hole 4116.d that matches the guide post 16, ensuring smooth sliding and positioning of the layer assembly 411 on the guide post 16. Adjacent layer assemblies 411 are mounted on the guide post 16 via guide sleeves. 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 nuts installed on the guide post 16, ensuring the stability and consistency of the solid-state battery cell during placement and removal. PCB assemblies 42 are respectively installed at both ends of the layer board assembly 411. Several mounting holes are evenly provided at the top of each layer board assembly 411 for fixing the PCB assembly 412. The PCB assembly 42 can change the position of the mounting holes 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 cells. At the same time, it can withstand a certain 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.

[0056] In a preferred embodiment, both the first pressure detection device 43 and the second pressure detection device 44 include a heat-insulating plate, a pressure sensor mounting plate, and a pressure sensor; the heat-insulating plate is respectively disposed at the beginning and end of the layer assembly array 41, and the heat-insulating plate is connected to the pressure sensor through the pressure sensor mounting plate.

[0057] Specifically, both the first heat-insulating plate 431 and the second heat-insulating plate 441 are made of ceramic fiber composite material, possessing excellent heat insulation performance. This effectively isolates the heat generated by the solid-state battery during operation from affecting the pressure sensor, ensuring accurate pressure detection. Their dimensions are compatible with the shelf assembly 411, and they are fixed to the shelf assembly 411 with screws, ensuring no displacement or detachment during stress. Both the first pressure sensor mounting plate 432 and the second pressure sensor mounting plate 442 are made of carbon steel and are used to mount the first pressure sensor 433 and the second pressure sensor 443, respectively, and are tightly connected to their corresponding heat-insulating plates. The mounting plates and heat-insulating plates are fixedly connected with countersunk screws, ensuring a secure and reliable connection. The mounting plates have mounting holes matching the pressure sensors, ensuring accurate installation and positioning of the pressure sensors and accurate transmission of the pressure from the solid-state battery to the pressure sensors. Both the first pressure sensor 433 and the second pressure sensor 443 are strain gauge pressure sensors, capable of real-time and accurate detection of the pressure on the solid-state battery at different locations, and converting the pressure signal into an electrical signal output to the monitoring terminal of the control system. By monitoring the pressure at the beginning and end of the layer assembly array 41 in real time, 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 guaranteeing the stable performance and quality of the solid-state battery.

[0058] In a preferred embodiment, such as Figures 9-10 As shown, the shelf assembly 411 includes: an aluminum shelf 4112, the aluminum shelf 4112 having a circulating water cooling pipe inside; a guide device 4113, the guide device 4113 being fixedly installed at the top center position of the aluminum shelf 4112; a temperature control plate 4114, the temperature control plate 4114 being attached to the upper surface of the aluminum shelf 4112; and a first temperature control detection device 4115, the first temperature control detection device 4115 being built into the aluminum shelf 4112.

[0059] Specifically, the aluminum shelf 4112 has a circulating water cooling pipe 4119 inside for fluid circulation to achieve a certain heat exchange function. A guide device 4113 is fixedly installed at the top center of the aluminum shelf 4112 to guide the battery. A temperature control plate 4114 is attached to the upper surface of the aluminum shelf 4112, enabling direct heat transfer and assisting in temperature control. A first temperature control detection device 4115 is built into the aluminum shelf 4112 to monitor the internal temperature in real time, allowing for precise temperature control and monitoring of the entire shelf assembly.

[0060] In a preferred embodiment, a guide bracket 4116 is symmetrically installed at both ends of the aluminum layer plate 4112; the guide bracket 4116 is provided with a guide post through hole 4116.d and a linear guide sleeve 4116.a; the axial pressure sleeve plate 4116.b is embedded in the guide post through hole 4116.d; the linear guide sleeve 4116.a axially passes through the axial pressure sleeve plate 4116.b; wherein, the axial pressure sleeve plate 4116.b achieves axial limiting of the linear guide sleeve 4116.a through an interference fit.

[0061] Specifically, guide brackets 4116 are symmetrically installed at both ends of the aluminum shelf 4112. The guide bracket 4116 has a guide post through hole 4116.d and a linear guide sleeve 4116.a. An axial pressure sleeve plate 4116.b is embedded in the guide post through hole 4116.d, and the linear guide sleeve 4116.a axially passes through the axial pressure sleeve plate 4116.b. The axial pressure sleeve plate 4116.b achieves axial limitation of the linear guide sleeve 4116.a through an interference fit. This structural design ensures stable connection and smooth guiding movement between components when the guide bracket 4116 is engaged with related components such as guide posts, improving the stability and reliability of the entire shelf assembly during movement.

[0062] In a preferred embodiment, an isolation strip 4117 is embedded at the interface between the guide bracket 4116 and the aluminum shelf 4112. The isolation strip 4117 isolates the guide bracket 4116 from the aluminum shelf 4112, reducing heat transfer between them and preventing thermal deformation of the guide bracket due to temperature changes in the aluminum shelf 4112. This ensures the guide bracket 4116 functions properly and maintains the precision and stability of the shelf assembly.

[0063] In a preferred embodiment, a spacer plate 4118 is mounted on the temperature control plate 4114; wherein the edge of the PCB assembly 42 forms a surface contact with the spacer plate 4118 for clamping and positioning. This design enables accurate positioning of the PCB assembly 42, fixing its position on the shelf assembly and preventing displacement during subsequent processing or use. This ensures good fit between the PCB assembly 42 and the shelf assembly 411, as well as other related components, improving the overall working accuracy and reliability of the device. Furthermore, the position of the PCB assembly 42 on the shelf assembly 411 can be adjusted to accommodate solid-state batteries of different sizes.

[0064] In a preferred embodiment, the circulating water cooling pipe 4119 is configured to circulate a cooling medium. The cooling medium can be water or other fluids with cooling properties. By circulating the cooling medium through the circulating water cooling pipe 4119, the heat generated by the shelf assembly during operation can be effectively removed, achieving cooling and temperature reduction of the shelf assembly. This ensures that the shelf assembly and other components installed on it, such as PCB assemblies, can operate normally in a suitable temperature environment, extending their service life and improving operational stability and reliability.

[0065] In a preferred embodiment, the circulating water cooling pipe 4119 includes a serpentine circulating water cooling pipe and an annular circulating water cooling pipe; the serpentine circulating water cooling pipe is installed in the central region of the aluminum layer plate; the annular circulating water cooling pipe is disposed at the edge of the aluminum layer plate. The annular circulating water cooling pipe is connected to the beginning and end of the serpentine circulating water cooling pipe; the inner diameter of the annular circulating water cooling pipe is consistent with the inner diameter of the serpentine circulating water cooling pipe.

[0066] Specifically, the aluminum shelf incorporates two types of circulating water-cooling pipes 4119: a serpentine type and a ring type. The serpentine type is located in the center, and the ring type is at the edge, with both connected end-to-end and having the same inner diameter. The densely arranged serpentine pipes in the center can quickly absorb a large amount of heat from the central area; the ring type pipes encircle the edge to prevent overheating at the edge, resulting in efficient overall heat dissipation, maintaining stable temperature of the aluminum shelf, and preventing battery overheating damage. The connection of the two types of pipes with the same inner diameter ensures uniform flow of the cooling medium, avoiding excessive temperature differences between the center and the edge, achieving uniform surface temperature of the aluminum shelf, improving battery processing stability and quality, and meeting the temperature requirements of different batteries. Combined with a heating plate, it allows for flexible temperature control to adapt to the temperature requirements of different batteries, improving production efficiency and product quality.

[0067] In a preferred embodiment, a snap-fit ​​structure 4111 is provided at the middle position of both sides of the shelf assembly 411. The snap-fit ​​structure 4111 is adapted to the spacer chain 53 and is used to fix the position of the shelf assembly 4111. The snap-fit ​​structure 4111 includes a pin 4111.b and a cotter pin 4111.a. The pin 4111.b is inserted into the cotter pin 4111.a and is used to fix the spacer chain.

[0068] Specifically, symmetrical snap-fit ​​structures 4111 are arranged at the middle positions on both sides of the layer assembly 411, i.e., the snap-fit ​​structures 4111 are set on the guide bracket 4116. The snap-fit ​​structures 4111 are steel buckles, and their inner hole size is adapted to the diameter of the spacer chain 53, so as to clamp the spacer chain 53. Through the adapted connection between the snap-fit ​​structures 4111 and the spacer chain 73, the position of the layer assembly 411 can be fixed at a specific position on the guide post 16, ensuring that the spacing between each layer assembly 411 remains constant during the stacking of solid-state battery cells, meeting the strict control requirements of solid-state battery production process for the interlayer distance of cells, thereby ensuring the consistency of the performance and quality of solid-state batteries. The upper and lower cotter pins cooperate to clamp the spacer chain 53, and the pin shaft 4111.b is inserted into the cotter pin 4111.a to fix the spacer chain 53.

[0069] In a preferred embodiment, such as Figure 11 As shown, the PCB assembly 42 includes: a PCB board 421, a pressure-applying component 422, a fixing seat 423, and a connecting seat 426; the fixing seat 423 is clamped at the upper connection between the PCB board 421 and the pressure-applying component 422; the connecting seat 426 is clamped at the lower connection between the PCB board 421 and the pressure-applying component 422; the pressure-applying component 422 includes an electrode tab pressure plate 4221 and an electrode tab spring pressure plate 4222; the electrode tab pressure plate 4221 and the electrode tab spring pressure plate 4222 are in surface contact. The connection is as follows: a sliding device 428 is provided between the pressure application component 422 and the connecting seat 426, the sliding device 428 is used to provide pressure for the pressure application component 422 to contact 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 guiding structure to ensure that the cell smoothly enters the DMD paper packaging area. A cell presence sensor 621 is provided on the cell guide block 425 for detecting the cell loading status. A second temperature control detection device 427 is embedded at the bottom of the PCB board 421 for monitoring the operating temperature rise of the PCB board 421.

[0070] Specifically, the electrode guide block 424 and the cell guide block 425 in the guiding and positioning system, through the conical guiding structure of the electrode guide block 424, ensure that the cell smoothly enters the DMD paper packaging area, improving production efficiency and packaging quality. The cell in-situ sensor can accurately detect the cell loading status, ensuring the smooth progress of subsequent processes. The second temperature control detection device 427 is embedded at the bottom of the PCB board 421, which monitors the operating temperature rise in real time, facilitating timely temperature adjustment and ensuring that the PCB assembly 42 operates stably within a suitable temperature range, extending its service life. The electrode pressure plate 4221 and the electrode spring pressure plate 4222 in the pressure application assembly 422 adopt a surface contact connection, resulting in uniform force distribution. Combined with the sliding device 428 connected to the connecting seat 426, it forms a pressure-adjustable elastic contact structure, which can flexibly adjust the pressure according to actual needs to meet different application scenarios. The fixing seat 423 and the connecting seat 426 are respectively clamped at the upper and lower connection points of the first mounting plate and the pressure application component 422, forming a cavity that can be inserted into the shelf assembly; this also ensures stable assembly of the components, improves the overall structural stability, reduces vibration and displacement during operation, ensures coordinated operation of all components, and enhances the reliability and durability of the equipment. At the same time, the pressure application component 422 ensures that the pressure on the solid-state battery is uniform when the entire fixture starts working. Example 6

[0071] In one embodiment, such as Figure 7 As shown, the fixed-distance adjustment system 5 includes: a fixed-distance pull plate 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 adjusting rod 522, and a chain adjusting seat 523; the chain adjustment module 52 is connected to the fixed-distance pull plate 51 through a fixed-distance chain 53.

[0072] Specifically, the spacer pull tab 51 is made of steel plate, with one end firmly fixed to the left side of the push plate 14 by welding or bolt connection, and the other end connected to the chain adjustment module 52 via the spacer chain 53. The spacer pull tab 51 can withstand a large pulling force and remains stable during the movement of the push plate 14, providing reliable mechanical support for spacer adjustment. The chain adjustment module 52 is a threaded pair adjustment mechanism consisting of an adjusting nut 521, a chain adjusting rod 522, and a chain adjusting seat 523. The adjusting nut 521 and the chain adjusting rod 522 fit tightly. By rotating the adjusting nut 521, the extension length of the chain adjusting rod 522 can be adjusted, thereby changing the distance between the spacer pull tab 51 and the rear end plate 13, achieving precise spacer adjustment of the position of the battery carrying system 4 on the guide column 16. The chain adjusting 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 and ensuring the stability and reliability of the adjustment process. Example 7

[0073] In one embodiment, such as 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 disposed 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 is slidably engaged with the slide rail assembly 61 through a dovetail groove structure. The layer plate assembly 411 is provided with a battery cell position sensor 621 that matches the battery cell position sensor mounting plate 62.

[0074] Specifically, the slide rail assembly 61 is installed on the inner side of the front end plate 12 and the rear end plate 13, respectively. Its material is linear bearing steel to ensure good wear resistance and linear motion performance. The slide rail has a dovetail groove structure for sliding engagement 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 with screws, ensuring the accuracy and stability of its installation position and providing a smooth guide 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 it slides into the slide rail assembly 61 via the dovetail groove structure, and the other end is equipped with the battery cell position sensor 621. The battery cell position sensor 621 is a photoelectric sensor that can monitor the battery cell's position information in real time and feed the position signal back to the control system. When the cells on the stack assembly 411 are stacked to the designated position, the 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 cells and the synchronization of pressure application, thereby improving the automation level and quality control level of solid-state battery production. Example 8

[0075] In one embodiment, such as 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 has an arc-shaped mounting groove adapted to the pull rod assembly 11. The position sensor 721 is fixed to the sensor mounting bracket 71 by 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 overpressure is not applied.

[0076] Specifically, the sensor mounting bracket 71 is made of aluminum alloy and has an arc-shaped mounting groove that matches the pull rod assembly 11. It is fixed to the pull rod assembly 11 with bolts and can be flexibly adjusted in position along the circumference of the pull rod assembly 11 to adapt to different detection needs. The design of the sensor mounting bracket 71 ensures the installation stability and reliability of the position sensor 721. Its arc-shaped structure can, to some extent, mitigate the impact of minor deformations of the pull rod assembly 11 under stress on the sensor installation, ensuring the measurement accuracy of the position sensor 721. The position sensor 721 is a magnetic grating position sensor, which is firmly fixed to the sensor mounting bracket 71 by the sensor mounting plate 72. The probe of the position sensor 721 faces the position sensor mounting piece 73 installed on the left side of the push plate 14, and the distance between them is maintained within a suitable range to ensure that the position sensor 721 can accurately detect the displacement of the push plate 14, thereby achieving precise detection and control of the solid-state battery position. The position sensor mounting plate 73 is made of stainless steel with a polished surface to improve the strength and stability of its reflected signal, ensuring that the position sensor 721 can reliably acquire position information. The position sensor mounting plate 73 is fixed to the left side of the push plate 14 and tightly connected to it with screws, ensuring the accuracy and stability of its installation position. The position sensor mounting plate 73 and the position sensor 721 work together 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 the displacement signal back to the control system. The position installation detection system can protect the pressure fixture's push plate from extreme positions during forward and backward movement, ensuring no overpressure. The control system compares and analyzes the displacement signal with pre-set process parameters, and adjusts the output of the pressurizing powertrain system 2 in a timely manner to achieve precise control of the solid-state battery pressure application process, ensuring that the solid-state battery is always at the optimal pressure position during production, thus improving the performance and quality of the solid-state battery.

[0077] The working principle of the high-pressure fixture of this 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 cell position is initially positioned by the cell positioning system 8. After the pressurization power assembly system 2 is started, the servo drive module 21 drives the electric cylinder execution module 22 to move along the guide post 16 towards the solid-state battery, and the pressure is uniformly applied to the surface of the solid-state battery by the correction component 3. During the pressure application process, the first pressure detection device 43 and the second pressure detection device 44 monitor the pressure on 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 execution 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 distance adjustment system 7 adjusts the position of the battery support system 4 on the guide post 16 according to the size and process requirements of the solid-state battery to ensure that the interlayer distance of the solid-state battery cells meets the design requirements during the stacking process. The position installation detection system 9 can monitor the position changes of the push plate 14 in real time, further ensuring the accuracy and stability of pressure application. The tensioning and positioning mechanism ensures that the guide column 16-layer plate assembly array is inserted on it throughout the process, and can also be tightly connected to the front and rear end plates to prevent equipment failure or abnormal pressure application caused by loosening of the tie rod, providing a solid foundation for the normal operation of the entire high-pressure fixture.

[0078] The specific workflow of the high-pressure fixture is as follows: the equipment is preheated to the set temperature for the solid-state battery packaging process; the solid-state battery to be packaged is placed into the preset station of the shelf assembly; the battery loading status is automatically detected by the cell in-situ sensor integrated in the shelf assembly, confirming that the station is fully loaded; the pressurization powertrain system is started, driving the pusher plate to move forward; the correction component corrects the displacement trajectory of the pusher plate in real time to ensure that the pressure direction is vertical; the shelf 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, executing the preset charging and discharging protocol; the temperature, pressure, and current / voltage are dynamically adjusted synchronously to achieve multi-parameter closed-loop control; after the process is completed, the pressurization powertrain system reverses; the spacer chain component precisely pulls the shelf assembly back to the initial design position; the packaged solid-state battery is removed; the equipment performs sensor calibration, mechanism reset, and abnormal diagnosis, ready for the next cycle.

[0079] This pressure control device can apply high pressure (up to 150 tons) to solid-state batteries and ensure pressure uniformity and stability through various detection and control methods. This effectively improves the cell compaction density and interfacial contact performance of solid-state batteries, thereby enhancing their energy density, cycle life, and overall performance stability. It also incorporates positioning and adjustment functions, ensuring improved accuracy and consistency in solid-state battery production, reducing the defect rate, and increasing production efficiency and economic benefits. Furthermore, the device's rational structural design allows it to meet the continuous operation requirements of large-scale solid-state battery production, providing strong technical support and equipment assurance for the development of the solid-state battery industry.

[0080] Other structures of the pressure control device described in this embodiment are described in the prior art.

[0081] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A pressure control device, characterized in that, include: A load-bearing frame, comprising a plurality of tie rod assemblies, a front end plate, a push plate, and a rear end plate; the front end plate is connected to the rear end plate via the plurality of tie rod assemblies. A correction component, wherein the correction component is mounted on the push plate; A pressurized powertrain system, which passes through the front end plate and is connected to the steering correction assembly; A battery carrier system for holding batteries; The front-end board, push plate, battery support system and rear-end board are sequentially sleeved on the guide post; The push plate is equipped with a linear bearing, and the linear bearing is connected to the push plate.

2. The pressure control device according to claim 1, characterized in that, The pressurized powertrain system includes A servo drive module, which consists of a servo motor and a transmission chain formed by a reduction gearbox and a gearbox. An electric cylinder actuation module, the electric cylinder actuation module including an electric cylinder body base connected to the output shaft of the gearbox, the output end of the electric cylinder body base being connected to the correction component through a floating ball joint mechanism; The floating ball head mechanism is equipped with an axial pressure plate limiting structure.

3. The pressure control device according to claim 1, characterized in that: The correction assembly is composed of an output connection plate, a flexible pressure holding plate, and a fixed connection plate connected in sequence. The flexible pressure-holding plate is made of rubber.

4. The pressure control device according to claim 1, characterized in that, The battery carrying system includes: The shelf assembly array is composed of multiple shelf assemblies mounted on guide posts via guide sleeves, and each shelf assembly is provided with a guide post through hole that is adapted to the guide post; The top of the layer assembly is provided with several mounting holes for fixing and mounting PCB assemblies; The PCB assemblies are respectively mounted at both ends of the layer board assembly.

5. A pressure control device according to claim 4, characterized in that: A first pressure detection device, one end of which is connected to the first end of the layer assembly array, and the other end of which is connected to the inner side of the push plate. A second pressure detection device, one end of which is connected to the tail end of the layer assembly array, and the other end of which is connected to the rear end plate.

6. A pressure control device according to claim 5, characterized in that, Both the first pressure detection device and the second pressure detection device include: a heat-insulating pressure plate, a pressure sensor mounting plate, and a pressure sensor; The heat insulation plates are respectively disposed at the beginning and end of the layer assembly array, and the heat insulation plates are connected to the pressure sensor through the pressure sensor mounting plate.

7. A pressure control device according to claim 1, characterized in that, include: 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 inside of the rear end plate.

8. A pressure control device according to claim 7, characterized in that, The fixed-distance adjustment system includes: A fixed-distance pull tab is fixed to the left side of the push plate; A chain adjustment module, wherein the chain adjustment module is a threaded pair adjustment mechanism consisting of an adjusting nut, a chain adjusting rod, and a chain adjusting seat; The chain adjustment module is connected to the fixed-distance pull tab via a fixed-distance chain.

9. A pressure control device according to claim 1, characterized in that, Also includes: 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 that is compatible with the pull rod assembly; The position sensor is fixed to the sensor mounting bracket by a sensor mounting plate; The position sensor mounting plate is fixed to the left side of the push plate and works in conjunction with the position sensor to detect the position of the push plate movement.

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