Water-cooled constant pressure system that operates with batteries of different thicknesses

Abstract

To provide a water-cooled constant pressure equipment following batteries with different thicknesses to ensure the stability and reliability of a charging and discharging process in the manufacturing of lithium batteries.SOLUTION: A water-cooled constant pressure equipment includes a rack assembly 1, a needle plate assembly 2, a constant pressure tray assembly 3, a movement mechanism assembly 4, a peripheral assembly, a submerged fire extinguishing assembly, and a constant pressure assembly 7. The tray is transported to a charge / discharge position by external feeding equipment, and when the tray reaches a predetermined position, the movement mechanism assembly moves upward and a matching block and a matching head automatically perform correct alignment, so that a probe and a battery pole can be quickly aligned with each other at a correct position. When a fire occurs in the battery, the battery is submerged in a submerged fire extinguishing assembly to achieve the purpose of extinguishing the fire.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention belongs to the technical field of battery manufacturing, and specifically relates to a water-cooled constant-pressure device that follows batteries with different thicknesses.

Background Art

[0002] In order to ensure the stability and reliability of the charging and discharging process of lithium batteries, it is necessary to pay attention to the following three points. First, it is necessary to ensure the stability of the crimping between the battery terminal and the probe, that is, to ensure that the projection positions of the probe and the lithium battery terminal overlap in the vertical direction. Second, stable control and adjustable pressure method in the charging process. Third, the handling of abnormal situations occurring during the long-term charging and discharging process of the battery.

[0003] Regarding the first point, if there is a deviation in the positions of the probe and the lithium battery terminal, the probe cannot effectively contact the lithium battery terminal, which will affect the charging and discharging of the lithium battery. In theory, when the probe row and the lithium battery row are facing each other, the lithium battery faces the position of the corresponding probe. However, there are errors in the thickness of the lithium battery, there are also errors in the dimensions of the separator, and there are also thickness errors caused by the expansion of the lithium battery during charging and discharging. In particular, the above errors are accumulated in the lithium battery row, and the deviation between the lithium battery relatively far from the contact point and the corresponding probe may reach a level that affects the effective progress of the charging and discharging of the lithium battery. Currently, although the outer dimensions of the thickness vary according to the design definitions of each battery manufacturer, all existing equipment has a fixed structure. Therefore, if the thickness is different, the equipment has to be newly designed and manufactured, and it cannot flexibly adapt to batteries with other thicknesses.

[0004] Regarding the second point, the constant-pressure mechanisms currently used in charge-discharge processes typically separate the battery with multiple separators. Before inserting the battery, the separators are placed a certain distance apart from each other, and then the battery is placed between adjacent separators. Pressure is then applied to bring the separators closer together and restrain the battery. However, the pressure applied in this method is usually quite large, requiring, for example, several tons of pressure. In high-power and high-energy charge-discharge processes, the internal electrolyte undergoes a chemical reaction under the influence of the electric current, and the battery case on the outer surface expands or contracts under the influence of the rising internal temperature environment, which can lead to uneven charging and discharging of the battery. Once the pressure drops or the amount of expansion becomes enormous, an uncontrollable and unfeedable situation can occur in the battery's safety performance.

[0005] Regarding the third point, during the battery charging and discharging process, the battery is charged and discharged with high current for a long period of time, making it unavoidable that battery malfunctions or safety accidents may occur. Currently, most conventional charging and discharging equipment uses either a water-gas integrated fire extinguishing system or a sprinkler-type fire extinguishing system to deal with battery malfunctions. Of these, the case where a water-gas integrated fire extinguishing system is used to deal with battery malfunctions has the disadvantage that after the fire is extinguished by the release of the extinguishing gas, the battery is exposed to the air again, so there is still a possibility of re-ignition, and the cost of the extinguishing gas is quite high. The case where a sprinkler-type fire extinguishing system is used to deal with battery malfunctions has the disadvantage that if an accident occurs at a certain position, the sprinkler will spray water onto the probe, making it impossible to continue production at that position for a short period of time, affecting the use of the entire row of equipment, and thus having a very significant impact on the production efficiency and safety of battery manufacturers. [Overview of the project]

[0006] To solve the above-mentioned technical problems in the prior art, the present invention presents a water-cooled constant-pressure system that is driven by batteries of different thicknesses, for an automatic expansion and contraction adjustment device for batteries of different thicknesses. By grouping probes and engaging them with the batteries, the two are driven to position each other, eliminating the accumulation of dimensional errors caused by lithium battery expansion and thickness errors. By installing a constant-pressure assembly, the problem in the prior art of uncontrollable and unfeedable situations arising in the safety of batteries during pressure drops or extreme expansion is solved. Furthermore, by installing a water tank, technical problems such as the risk of battery re-ignition and inability to use the position normally, which exist in current sprinkler systems, are also solved.

[0007] In order to solve the technical problems, the present invention employs the following technical methods. A water-cooled constant-pressure system that operates in conjunction with batteries of different thicknesses, A rack assembly (1) includes a horizontally installed upper frame (10) and a lower frame (11), wherein the lower frame (11) is located below the upper frame (10) and is fixedly connected by a plurality of support columns (13), and the extension direction of the long side of the upper frame is defined as the left-right direction, and the extension direction of the short side of the upper frame is defined as the front-back direction, and its characteristics are as follows. A lifting cylinder mounting plate (102) is fixed to the lower part of the upper frame (10), and the lower part of the lifting cylinder mounting plate (102) is engaged with the motion mechanism assembly (4), and multiple motion shafts (12) are arranged between the upper frame (10) and the bottom frame (11). Below the upper frame (10) a needle plate assembly (2) is installed, and above each work position there is a set of needle plate assemblies (2) which include a power module member (20) and different type needle plate members (21), the different type needle plate members (21) are located below the power module member (20), and the different type needle plate members (21) include a probe front fixing plate (2109-1), a probe rear fixing plate (2109-2), a probe left fixing plate (2110-1), and a probe right fixing plate (2110-2), and the probe front The fixing plate (2109-1), the rear probe fixing plate (2109-2), the left probe fixing plate (2110-1), and the right probe fixing plate (2110-2) collectively surround each other to form a housing structure. Slide rails (2102) are installed below the left probe fixing plate (2110-1) and the right probe fixing plate (2110-2), respectively. Several probe sets (2100) are arranged on the housing structure at intervals along the front-to-back direction, and each probe set (2100) corresponds one-to-one with a probe extension cylinder (21002). The probe assembly includes a probe extension cylinder mounting plate (21009), the probe assembly is mounted to the bottom of the probe extension cylinder mounting plate (21009), and under the action of the probe extension cylinder (21002), the probe assembly can move up and down along the guide shaft (21004), and sliders (21000) are provided at positions corresponding to the slide rails (2102) on both sides of the probe extension cylinder mounting plate (21009) that engage with and act with the slide rails (2102), and some probe extension cylinder mounting plate (21 009) is slidably mounted on a slide rail (2102) and positioned in the front-rear direction, with connecting blocks (21007) vertically mounted at both ends of the bottom of the probe extension cylinder mounting plate (21009), and adjacent probe extension cylinder mounting plates (21009) are connected by connecting springs (21008), and a reset cylinder (2107) is installed along the front-rear direction on the side of the probe rear fixing plate (2109-2) facing the inside of the housing structure, and is slidably mounted on the slide rail (2102),The reset cylinder (2107) horizontally pushes the reset cylinder fixing plate (2108) to move the probe set (2100). The constant-pressure tray assembly (3) includes a tray bottom frame (303) horizontally positioned below the needle plate assembly (2), with a front fixing plate (300) and a rear fixing plate (307) positioned at the front and rear of the tray bottom frame (303), respectively. Between the ends of the front fixing plate (300) and the rear fixing plate (307), there are several liner guide shafts (308) spaced apart from top to bottom, and the tray liner plate (302) can move back and forth along the liner guide shafts (308). The front fixing plate (300), the rear fixing plate (307), and the several liner guide shafts (308) are jointly... A tray frame is formed to surround the tray, and inside the tray frame, several tray liner plates (302) are arranged horizontally at intervals along the front-to-back direction. A push plate (304) and a screw (306) are installed inside the tray frame between the tray liner plates (302) and the rear fixing plate (307). Of these, the tray liner plates (302) closest to the rear fixing plate (307) are used to support the tray push plate (304), and the remaining tray liner plates (302) are used to support the battery (301). A trapezoidal nut (305) is mounted horizontally at the center, one end of the screw (306) is connected to the tray push plate (304), and the other end passes through the trapezoidal nut (305) and is exposed outside the tray frame, and can rotate within the trapezoidal nut (305). By rotating the screw (306), the initial spacing between the tray liner plates (302) is adjusted, and if expansion occurs during the charging process of the battery (301), the tray liner plates (302) can move back and forth along the liner guide shaft (308), and the screw (306) The push plate (304) is pushed horizontally, applying a horizontal forward force. Connecting heads (311) are installed on the surfaces of both ends of the tray liner plate (302) facing the connecting block (21007), and when the battery (301) expands, the connecting block (21007) moves in accordance with the connecting heads (311). Simultaneously, the entire probe set (2100) moves along the slide rail (2102), ensuring accurate alignment of the current probe (21003) and the battery's poles. The motion mechanism assembly (4) is used to support the constant pressure tray assembly (3) and can move up and down along the motion axis (12). The submersible fire extinguishing assembly (6) is located between the constant-pressure tray assembly (3) and the bottom frame (11), and in the event of a battery fire, the battery (301) is submerged in the submersible fire extinguishing assembly (6), thereby fulfilling the purpose of fire extinguishing. The constant-pressure assembly (7) is located on one side of the rack assembly (1) and engages with the tray push plate (304) to make real-time adjustments to the pressure the battery (301) receives, thereby ensuring that the pressure the battery (301) receives remains constant after it expands. Furthermore, the motion mechanism assembly (4) includes an upper middle frame member (40) and a lower middle frame member (41), the upper middle frame member (40) and the lower middle frame member (41) are each slidably mounted on the motion axis (12), and of these, The upper middle frame member (40) is located above the lower middle frame member (41) and is used to position the constant pressure tray assembly (3) and to dock the constant pressure tray assembly (3) with the needle plate assembly (2). The lower middle frame member (41) is installed horizontally above the bottom frame (11) and is used to load and unload materials into the constant pressure tray assembly (3).

[0008] Furthermore, the submersible fire extinguishing assembly (6) includes a water tank body (601) and an extinguishing cylinder (4013), the extinguishing cylinder (4013) is installed on a rising cylinder fixing plate (4015), and the piston rod end of the extinguishing cylinder (4013) is fixed on a second cylinder mounting joint (4007), the upper end of the motion shaft (12) is fixed on the upper frame (10) and the lower end is fixed inside the water tank body (601), the extinguishing cylinder (4013) causes the motion mechanism assembly (4) to slide up and down along the motion shaft (12), and when the battery ignites, the motion mechanism assembly (4) sinks the battery (301) into the water tank body (601) under the action of the extinguishing cylinder (4013), thereby fulfilling the purpose of fire extinguishing.

[0009] Furthermore, the constant pressure assembly (7) includes a mounting base plate (75) installed horizontally on the ground, with the longer side of the mounting base plate (75) defined as the left-right direction and the shorter side as the front-back direction. Four support columns (76) are installed vertically on the mounting base plate (75), and an electric cylinder mounting plate (77) is installed horizontally on the upper end of the support columns (76). A servo electric cylinder (71) is installed on the electric cylinder mounting plate (77), and the servo electric cylinder (71) is connected to a pressure plate (78) via an electric cylinder output shaft. Four pressure output shafts (74) are installed on the side of the pressure plate (78) furthest from the servo electric cylinder (71). The pressure output shaft (74) is positioned in a one-to-one correspondence with the restraint hole on the trapezoidal nut (305). One end of the pressure output shaft (74) is fixed to the pressure plate (78), and the other end is connected to the tray push plate (304) through the restraint hole. A pressure sensor (73) is installed between the electric cylinder output shaft and the pressure plate (78). The pressure sensor (73) is used to monitor the pressure received by the battery (301) in real time. By adjusting the pressure received by the battery (301) in real time through the servo electric cylinder (71), it is ensured that the pressure received by the battery (301) remains constant after the battery (301) expands.

[0010] Furthermore, multiple sets of feed rollers (410) are installed on the middle and lower frame member (41) at intervals along the front-to-back direction, the front end of the middle and lower frame member (41) is on the equipment supply side, and a tray support column (413) is installed vertically at the rear end of the middle and lower frame member (41). The upper middle frame member (40) has a symmetrical structure and has two working positions on the left and right, allowing two constant-pressure tray assemblies (3) to be placed on it simultaneously. Each working position is equipped with a tray guide block (4000) to assist in positioning the constant-pressure tray assembly (3). A tray positioning pin (4010) is installed on the upper middle frame member (40), and the tray positioning pin (4010) engages with a positioning hole (309) on the tray bottom frame (303) to achieve the positioning of the constant-pressure tray assembly (3).

[0011] Furthermore, a lifting cylinder (4012) is installed below the lifting cylinder mounting plate (102), and the piston rod end of the lifting cylinder (4012) is fixed onto the lifting cylinder fixing plate (4015).

[0012] Furthermore, the probe assembly includes a probe mounting plate (21005), on which a current probe (21003) used for charging and discharging the battery and a temperature probe (21006) for monitoring the battery temperature are mounted vertically. A probe telescopic cylinder (21002) is mounted on the central axis of a probe telescopic cylinder mounting plate (21009), the piston rod end of the probe telescopic cylinder (21002) is fixed on the probe mounting plate (21005), and two guide shafts (21004) are mounted vertically on the probe mounting plate (21005). The guide shafts (21004) vertically pass through a bearing (21001) on the probe telescopic cylinder mounting plate (21009), allowing the probe mounting plate (21005) to move up and down along the guide shafts (21004) under the action of the probe telescopic cylinder (21002). A slider (21000) is mounted on the probe extension cylinder mounting plate (21009), and the slider (21000) engages with the slide rail (2102), allowing the probe set (2100) to move back and forth along the slide rail (2102).

[0013] Furthermore, a small number of tray guide blocks (4000) are installed on the front and rear sides of the upper middle frame member (40) at intervals along the left-right direction. The tray guide blocks (4000) are mounted vertically on the upper middle frame member (40) and position the constant pressure tray assembly (3) from three directions: front, rear, left, and right.

[0014] Furthermore, engagement grooves (310) are provided at both ends of the tray liner plate (302) to engage with the liner guide shaft (308), and the tray liner plate (302) can move back and forth along the liner guide shaft (308), and the tray bottom frame (303) is fixed to the lowest end of the liner guide shaft (308).

[0015] Furthermore, the piston rod end of the reset cylinder (2107) is connected to the reset cylinder fixing plate (2108) via a connecting angle member (2106), and the reset cylinder fixing plate (2108) is slidably installed on the slide rail (2102).

[0016] The beneficial effects of this invention are as follows: 1. The tray is transported to the charge / discharge position by an external feeding device. Once the tray reaches the predetermined position, the motion mechanism assembly moves upward and automatically aligns correctly with the interlocking block of the needle plate assembly and the tray interlocking head, allowing the probe and battery poles to be quickly aligned to the correct position. 2. The present invention is compatible with material batteries and can perform self-adaptive positioning with an error of 0 to 10 mm, and in a constrained state, it realizes that when the battery expands, the probe will follow the expansion of the battery. 3. In this invention, the battery prevents damage to the surface of the battery electrode posts during the driven process, satisfies the requirement for indentation appearance, and calibrates the alignment of the battery electrode posts and needle plate in real time, so that it can be applied to batteries with different material thicknesses and good contact between the probe and the battery electrode posts, and eliminates the effect of misalignment between the battery electrode posts and probe caused by expansion during the battery charging and discharging process on charging and discharging, while simultaneously ensuring safety during the battery charging and discharging process. 4. The present invention can provide a constant pressure to the battery during the charging and discharging process of the battery. Specifically, after the battery is placed in the tray, it is transported to the charging and discharging position, and the pressure is applied based on the predetermined pressure of the process. The pressure sensor monitors the pressure in real time to ensure that during the expansion and contraction of the battery during the charging and discharging process, the pressure is adjusted in real time so that it reaches the set value, preventing the applied pressure from becoming unstable due to the lack of pressure feedback during the charging and discharging process of the battery, and preventing the occurrence of a mismatch in the gap between the tray on which the battery is placed and the separator due to thermal expansion or cold contraction during the charging and discharging process of the battery, resulting in non-uniform charging and discharging capacity of the battery and variations in the battery life. In this device, the consistency and stability of the battery pressure are guaranteed, and by monitoring and adjusting the pressure in real time, the battery is stabilized and made consistent. 5. The present invention solves the risk of re-ignition of the battery existing in the conventional fire extinguishing method by moving the tray on which the battery is placed downward along the moving axis and submerging it into the water tank body. It has a low cost, and moreover, the probe is not affected, maintaining continuous production at the position, not affecting the use of the entire row of equipment, and guaranteeing the production efficiency and safety of the battery manufacturer.

Brief Description of the Drawings

[0017] [Figure 1] Figure 1 is a schematic overall structure diagram of the water-cooled constant pressure equipment driven by the batteries with different thicknesses of the present invention. [Figure 2] Figure 2 is a schematic structure diagram of the rack assembly of the present invention. [Figure 3a] Figure 3a is a top view of the upper frame of the present invention. [Figure 3b] Figure 3b is a front view of the upper frame of the present invention. [Figure 3c] Figure 3c is a bottom view of the upper frame of the present invention. [Figure 3d] Figure 3d is an enlarged view of I in Figure 3b. [Figure 4] Figure 4 is a schematic structure diagram of the needle plate assembly of the present invention. [Figure 5]Figure 5 is a schematic structural view of the type-different needle plate member of the present invention. [Figure 6a] Figure 6a is a projection view of one surface of the type-different needle plate member of the present invention. [Figure 6b] Figure 6b is a projection view of one surface of the type-different needle plate member of the present invention. [Figure 6c] Figure 6c is a projection view of one surface of the type-different needle plate member of the present invention. [Figure 6d] Figure 6d is a projection view of one surface of the type-different needle plate member of the present invention. [Figure 7] Figure 7 is a schematic structural view of the power module member of the present invention. [Figure 8] Figure 8 is a schematic structural view of the probe set of the present invention. [Figure 9] Figure 9 is a schematic structural view of the constant pressure tray assembly of the present invention. [Figure 10a] Figure 10a is a projection view of one surface of the constant pressure tray assembly of the present invention. [Figure 10b] Figure 10b is a projection view of one surface of the constant pressure tray assembly of the present invention. [Figure 10c] Figure 10c is a projection view of one surface of the constant pressure tray assembly of the present invention. [Figure 10d] Figure 10d is a projection view of one surface of the constant pressure tray assembly of the present invention. [Figure 10e] Figure 10e is a projection view of one surface of the constant pressure tray assembly of the present invention. [Figure 11] Figure 11 is a schematic structural view of the trailer liner plate of the present invention. [Figure 12a] Figure 12a is a schematic structural view of the front of the trailer liner plate. [Figure 12b] Figure 12b is a schematic structural view of the back of the trailer liner plate. [Figure 13] Figure 13 is a schematic structural view of the tray pressing plate of the present invention. [Figure 14a] Figure 14a is a schematic structural view of the middle and lower frame member of the present invention. [Figure 14b] Figure 14b is a front view of the middle and lower frame member of the present invention. [Figure 15a] Figure 15a is a schematic diagram of the structure of the upper middle frame member of the present invention. [Figure 15b] Figure 15b is a top view of the upper middle frame member of the present invention. [Figure 16] Figure 16 is a schematic diagram of the structure of the motion mechanism assembly of the present invention. [Figure 17] Figure 17 is a side view of the motion mechanism assembly of the present invention after the cable drag chain has been removed. [Figure 18] Figure 18 is a front view of the motion mechanism assembly of the present invention in the state during feeding. [Figure 19] Figure 19 is a schematic diagram of the peripheral assembly structure of the present invention. [Figure 20a] Figure 20a is a multi-view projection of the water tank body of the present invention. [Figure 20b] Figure 20b is a multi-view projection of the water tank body of the present invention. [Figure 20c] Figure 20c is a multi-view projection of the water tank body of the present invention. [Figure 20d] Figure 20d is a multi-view projection view of the water tank body of the present invention. [Figure 21] Figure 21 is a schematic diagram showing the installation of the constant pressure assembly of the present invention. [Figure 22] Figure 22 is a schematic diagram of the structure of the constant pressure assembly of the present invention. [Figure 23] Figure 23 is a schematic diagram showing the alignment of the probe set and the constant pressure tray assembly when batteries of different thicknesses are placed on the tray of the present invention. [Explanation of Symbols]

[0018] 1. Rack Assembly 10 Upper frame 11 Bottom frame 12 motion axis 13 Support pillar 14 Cooler 100 Smoke Exhaust Fan 101 Support base 102 Lifting cylinder mounting plate 103 Needle plate mounting pulley 104 Needle plate mounting fixing plate 105 Fixing plate after needle plate installation 106 Square Tube Rack 2 Needle Plate Assembly 20 Power Module Components 21 Different types of needle plate components 200 Front mounting plate 201 Right mounting plate 202 Circuit board 203 Hook 204 Module Cooling Fan 205 Left mounting plate 206 Rear mounting plate 207 Needle plate fixing slide rail 2100 Probe Set 2101 Cylinder bus 2102 Slide Rail 2103 Blocking 2104 Guide Block 2105 Environmental thermometer 2106 Connecting corner member 2107 Reset Cylinder 2108 Reset Cylinder Fixing Plate 2109-1 Probe front fixing plate 2109-2 Probe rear fixing plate 2110-1 Probe left fixing plate 2110-2 Probe Right Fixing Plate 2111 Slide rail fixing plate 21000 Slider 21001 Bearing 21002 Probe extension cylinder 21003 Current probe 21004 Probe mounting plate guide shaft 21005 Probe mounting plate 21006 Temperature probe 21007 Coupling Block 21008 Connecting spring 21009 Probe telescopic cylinder mounting plate 3 Constant Pressure Tray Assembly 300 Front fixing plate 301 Batteries 302 Tray Liner Plate 303 Tray bottom frame 304 Push plate 305 Trapezoidal Nut 306 Screw 307 Rear fixing plate 308 Liner Guide Axis 309 Positioning holes 310 Engagement groove 311 Coupling Head 4. Motion Mechanism Assembly 40 Upper middle frame member 41 Middle and lower frame member 4000 Tray Guide Block 4001 Tray Cooling Fan 4002 Feed Cylinder Fixing Plate 4003 Tray Vertical Position Sensor 4004 Infrared Temperature Sensor 4005 Tray Clamp Cylinder 4006 Second straight bearing 4007 Second cylinder mounting joint 4008 Movement mechanism stopper 4009 Tray Code Reader 4010 Tray positioning pin 4011 Feed Cylinder 4012 Lifting Cylinder 4013 Disappearing Cylinder 4014 Cable Drag Chain 4015 Lifting Cylinder Fixing Plate 410 Feed Roller 411 Tray horizontal position sensor 412 Support column fixing member 413 Tray support column 414 First Linear Bearing 415 First cylinder mounting joint 416 Tray support nylon block 5 Peripheral Assembly 50 Integrated Peripheral Racks 51 Touchscreen 53 Electrical Cabinet 54 Safety Gate 55. Alarm lamp 6. Submersible Firefighting Assembly 601 Water Tank Body 602 Water Intake 603 Overflow outlet 604 Water outlet 605 Connection Plate 7 Constant Pressure Assembly 71 Servo Electric Cylinder 73 Pressure Sensor 74 Pressure output shaft 75 Mounting base plate 76 Support column 77 Servo mounting plate 78 Pressure plate [Modes for carrying out the invention]

[0019] The following sections provide a detailed description of specific embodiments of the present invention, accompanied by the drawings. It should be understood that these specific embodiments are intended solely to illustrate and interpret the embodiments of the present invention, and are not intended to limit them.

[0020] It should be explained that, under consistent circumstances, the embodiments and features within the embodiments of the present invention can be combined with each other.

[0021] It is important to understand that the directions or positional relationships indicated by terms such as "center," "vertical direction," "horizontal direction," "length," "width," "thickness," "top," "bottom," "front," "back," "left," "right," "perpendicular," "horizontal," "top," "bottom," "inside," "outside," "clockwise," "counterclockwise," "axial direction," "radial direction," and "circumferential direction" are based on the directions or positional relationships shown in the figures. They are merely used to make the description of the present invention easier and to simplify the description. They do not indicate or imply that the devices or elements being referred to necessarily have a specific direction, or that they are configured and operated in a specific direction, and therefore should not be understood as limitations on the present invention.

[0022] Furthermore, the terms "first" and "second" are used solely to describe the purpose and should not be understood as indicating or suggesting relative importance, or implicitly indicating the number of technical features being referred to. Thus, features designated as "first" and "second" may, explicitly or implicitly, include at least one such feature. In the description of this invention, "multiple" means at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0023] In this invention, unless otherwise clearly defined and limited, terms such as "attachment," "connection," "bonding," and "fixing" should be understood in a broad sense. For example, it may refer to a fixed connection, a detachable connection, or a connection that forms an integral part of the device. It may refer to a mechanical connection, an electrical connection, or mutual communication. It may refer to a direct connection, an indirect connection via an intermediate medium, internal communication between two elements, or an interaction relationship between two elements, unless otherwise clearly defined. Those skilled in the art will be able to understand the specific meaning of the above terms in this invention depending on the specific situation.

[0024] In the present invention, unless otherwise explicitly stated and limited, when the first feature is "above" or "below" the second feature, the first and second features may be in direct contact, or they may be indirectly in contact via an intermediate medium. Furthermore, when the first feature is "above," "above," or "on the top surface" of the second feature, the first feature may be directly above or diagonally above the second feature, or it may simply indicate that the horizontal height of the first feature is higher than that of the second feature. When the first feature is "below," "below," or "on the bottom surface" of the second feature, the first feature may be directly below or diagonally below the second feature, or it may simply indicate that the horizontal height of the first feature is lower than that of the second feature.

[0025] In this specification, any reference to the terms “one example,” “several examples,” “illustration,” “specific example,” or “several examples” means that the specific features, structures, materials, or characteristics described in the example or example are included in at least one example or example of the present invention. In this specification, the general expressions of the above terms do not necessarily have to refer to the same example or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in an appropriate manner within one or more examples or examples. Also, in non-contradictory circumstances, a person skilled in the art can combine or link different examples or examples and features of different examples or examples described herein.

[0026] The present invention will be described in detail below with reference to the drawings and in conjunction with exemplary embodiments.

[0027] As shown in Figures 1 to 23, the water-cooled constant-pressure equipment of the present invention, which is driven by the above-mentioned batteries of different thicknesses, A rack assembly 1 includes a horizontally installed upper frame 10 and a lower frame 11, the lower frame 11 being located below the upper frame 10 and fixedly connected by a plurality of support columns 13, wherein the extension direction of the long side of the upper frame is defined as the left-right direction, and the extension direction of the short side of the upper frame is defined as the front-back direction, a lifting cylinder mounting plate 102 is fixed below the upper frame 10, the lower part of the lifting cylinder mounting plate 102 is engaged with a motion mechanism assembly 4, and a plurality of motion shafts 12 are arranged between the upper frame 10 and the lower frame 11. Below the upper frame 10, a needle plate assembly 2 is installed, and above each work position there is a set of needle plate assemblies 2, which include a power module member 20 and different type needle plate members 21, the different type needle plate members 21 being located below the power module member 20, the power module member 20 including a front mounting plate 200, a rear mounting plate 206, a left mounting plate 205 and a right mounting plate 201, the front mounting plate 200, the rear mounting plate 206, the left mounting plate 205 and the right mounting plate 201 jointly form a storage space for housing circuit boards 202, several circuit boards 202 are arranged in the storage space with spacing along the front-to-back direction, and above the left mounting plate 205 and the right mounting plate 201, a needle plate fixing slide rail 207 is installed. The different-type needle plate members 21 include a probe front fixing plate 2109-1, a probe rear fixing plate 2109-2, a probe left fixing plate 2110-1, and a probe right fixing plate 2110-2. The probe front fixing plate 2109-1, the probe rear fixing plate 2109-2, the probe left fixing plate 2110-1, and the probe right fixing plate 2110-2 jointly surround each other to form a housing structure. Slide rails 2102 are installed below the probe left fixing plate 2110-1 and the probe right fixing plate 2110-2, respectively. Several probe sets 2100 are arranged on the housing structure at intervals along the front-to-back direction. Each probe set 2100 includes a probe telescopic cylinder mounting plate 21009 that corresponds one-to-one with a probe telescopic cylinder 21002. The assembly is mounted on the bottom of the probe extension cylinder mounting plate 21009, and under the action of the probe extension cylinder 21002, the probe assembly can move up and down along the guide shaft 21004, sliders 21000 that engage with the slide rails 2102 are provided at positions corresponding to the slide rails 2102 on both sides of the probe extension cylinder mounting plate 21009, several probe extension cylinder mounting plates 21009 are slidably mounted on the slide rails 2102 and aligned in the front-rear direction, interlocking blocks 21007 are vertically mounted at both ends of the bottom of the probe extension cylinder mounting plate 21009, and adjacent probe extension cylinder mounting plates 21009 are connected by connecting springs 21008. The constant pressure tray assembly 3 includes a tray bottom frame 303 horizontally installed below the needle plate assembly 2, with a front fixing plate 300 and a rear fixing plate 307 installed at the front and rear of the tray bottom frame 303, respectively, and a few liner guide shafts 308 positioned at intervals from top to bottom between the ends of the front fixing plate 300 and the rear fixing plate 307, allowing the tray liner plate 302 to move back and forth along the liner guide shafts 308, and the front fixing plate 300, the rear fixing plate 307 and the few liner guide shafts 308 jointly surround and form a tray frame, with spacing along the front-to-back direction inside the tray frame A few tray liner plates 302 are arranged horizontally with some space between them. A push plate 304 and a screw 306 are installed within the tray frame between the tray liner plates 302 and the rear fixing plate 307. Of these, the tray liner plates 302 closest to the rear fixing plate 307 are used to support the tray push plate 304, and the remaining tray liner plates 302 are used to support the battery 301. A trapezoidal nut 305 is horizontally mounted at the center of the rear fixing plate 307. One end of the screw 306 is connected to the push plate 304, and the other end passes through the trapezoidal nut 305 and exits the tray frame. It is exposed and can rotate within the trapezoidal nut 305, and the initial spacing between the tray liner plates 302 is adjusted by rotating the screw 306, if expansion occurs during the charging process of the battery 301, the tray liner plates 302 can move back and forth along the liner guide shaft 308, the screw 306 pushes the push plate 304 horizontally and applies a horizontal forward force, and on both ends of the tray liner plate 302, on the surfaces facing the interlocking block 21007, interlocking heads 311 that dock with the interlocking block 21007 are installed, and the battery 301 When expanded, the coupling block 21007 is driven by the coupling head 311, and at the same time the entire probe set 2100 moves along the slide rail 2102, thereby ensuring the accuracy of the alignment of the current probe 21003 and the battery poles. The constant pressure tray assembly 3 includes a tray bottom frame 303 horizontally installed below the needle plate assembly 2, with a front fixing plate 300 and a rear fixing plate 307 installed at the front and rear of the tray bottom frame 303, respectively, and a few liner guide shafts 308 spaced from top to bottom between the ends of the front fixing plate 300 and the rear fixing plate 307.The tray liner plate 302 can move back and forth along the liner guide shaft 308, and the front fixing plate 300, the rear fixing plate 307, and some liner guide shafts 308 jointly surround and form a tray frame. Inside the tray frame, some tray liner plates 302 are arranged horizontally at intervals along the front-to-back direction. A push plate 304 and a screw 306 are installed inside the tray frame between the tray liner plates 302 and the rear fixing plate 307. Of these, the tray liner plate 302 closest to the rear fixing plate 307 is used to support the tray push plate 304, and the remaining tray liner plates 302 are used to support the battery 301. A trapezoidal nut 305 is horizontally mounted at the center of the rear fixing plate 307, one end of the screw 306 is connected to the push plate 304, and the other end passes through the trapezoidal nut 305 and connects to the tray The screw 306 is exposed outside the frame and can rotate within the trapezoidal nut 305, and the initial spacing between the tray liner plates 302 is adjusted by rotating the screw 306. If expansion occurs during the charging process of the battery 301, the tray liner plates 302 can move back and forth along the liner guide shaft 308, and the screw 306 applies a horizontal forward force by horizontally pushing the push plate 304. On the surfaces of both ends of the tray liner plates 302 facing the coupling block 21007, coupling heads 311 that dock with the coupling block 21007 are installed. When the battery 301 expands, the coupling block 21007 follows the coupling heads 311, and at the same time, the entire probe set 2100 moves along the slide rail 2102, thereby ensuring the accuracy of the alignment between the current probe 21003 and the battery poles. The motion mechanism assembly (4) is used to position the constant pressure tray assembly (3) and can move up and down along the motion axis (12). The submersible fire extinguishing assembly (6) is located between the constant-pressure tray assembly (3) and the bottom frame (11), and in the event of a battery fire, the battery (301) is submerged in the submersible fire extinguishing assembly (6), thereby fulfilling the purpose of fire extinguishing. The constant-pressure assembly (7) is located on one side of the rack assembly (1) and engages with the tray push plate (304) to make real-time adjustments to the pressure the battery (301) receives, thereby ensuring that the pressure the battery (301) receives remains constant after it expands.

[0028] In one embodiment, the motion mechanism assembly 4 includes an upper middle frame member 40 and a lower middle frame member 41, the upper middle frame member 40 and the lower middle frame member 41 are each slidably mounted on the motion axis 12, and of these, The upper middle frame member 40 is located above the lower middle frame member 41 and is used to position the constant pressure tray assembly 3 and to dock the constant pressure tray assembly 3 with the needle plate assembly 2. The lower middle frame member 41 is installed horizontally above the bottom frame 11 and is used to load and unload materials into the constant pressure tray assembly 3.

[0029] In one embodiment, the submersible fire extinguishing assembly (6) includes a water tank body (601) and an extinguishing cylinder (4013), the extinguishing cylinder (4013) being mounted on a rising cylinder fixing plate (4015), and the piston rod end of the extinguishing cylinder (4013) being fixed on a second cylinder mounting joint (4007), the upper end of the motion shaft (12) being fixed on an upper frame (10) and the lower end being fixed inside the water tank body (601), the extinguishing cylinder (4013) causing the motion mechanism assembly (4) to slide up and down along the motion shaft (12), and when the battery ignites, the motion mechanism assembly (4) sinks the battery (301) into the water tank body (601) under the action of the extinguishing cylinder (4013), thereby achieving the purpose of fire extinguishing.

[0030] Specifically, a water intake (602) is installed on the water tank body (601), the water intake (602) is connected to an external pipeline and stores water in the water tank body (601), and a water outlet (604) is installed at the bottom of the water tank body (601) for discharging the water from the water tank body (601).

[0031] Specifically, an overflow port (603) is installed at the upper end of the water tank body (601) to prevent the liquid level in the water tank body (601) from becoming too high.

[0032] Specifically, a connecting plate (605) is installed at the bottom of the water tank body (601), and the lower end of the motion shaft (12) is fixed onto the connecting plate (605).

[0033] Specifically, a smoke sensor is installed on the above-mentioned motion mechanism assembly (4), and the smoke sensor is connected to a system controller. After receiving information from the smoke sensor, the system controller transmits a fire alarm to control the movement of the extinguishing cylinder (4013).

[0034] In one embodiment, the constant pressure assembly (7) includes a mounting base plate (75) installed horizontally on the ground, with the longer side of the mounting base plate (75) defined as the left-right direction and the shorter side of the mounting base plate (75) defined as the front-back direction. Four support columns (76) are installed vertically on the mounting base plate (75), and an electric cylinder mounting plate (77) is installed horizontally on the upper end of the support columns (76). A servo electric cylinder (71) is installed on the electric cylinder mounting plate (77), and the servo electric cylinder (71) is connected to a pressure plate (78) via an electric cylinder output shaft. Four pressure output shafts (74) are installed on the side of the pressure plate (78) furthest from the servo electric cylinder (71). The system is installed such that the installation position of the pressure output shaft (74) corresponds one-to-one with the restraint hole on the trapezoidal nut (305), one end of the pressure output shaft (74) is fixed to the pressure plate (78), and the other end is connected to the tray push plate (304) through the restraint hole. A pressure sensor (73) is installed between the electric cylinder output shaft and the pressure plate (78), and the pressure sensor (73) is used to monitor the pressure received by the battery (301) in real time. By adjusting the pressure received by the battery (301) in real time through the servo electric cylinder (71), it is ensured that the pressure received by the battery (301) remains constant after the battery (301) expands.

[0035] In one embodiment, multiple sets of feed rollers 410 are installed on the middle and lower frame member 41 at intervals along the front-to-back direction, the front end of the middle and lower frame member 41 is on the equipment supply side, and a tray support column 413 is installed vertically at the rear end of the middle and lower frame member 41. The upper middle frame member 40 has a symmetrical structure and has two working positions on the left and right, allowing two constant-pressure tray assemblies 3 to be placed on it simultaneously. Each working position is equipped with a tray guide block 4000 to assist in positioning the constant-pressure tray assembly 3. A tray positioning pin 4010 is installed on the upper middle frame member 40, and the tray positioning pin 4010 engages with a positioning hole 309 on the tray bottom frame 303 to position the constant-pressure tray assembly 3.

[0036] In one embodiment, a lifting cylinder 4012 is installed below the lifting cylinder mounting plate 102, the piston rod end of the lifting cylinder 4012 is fixed on the lifting cylinder fixing plate 4015, a disintegrating cylinder 4013 is mounted on the lifting cylinder fixing plate 4015, and the piston rod end of the disintegrating cylinder 4013 is fixed on the second cylinder mounting joint 4007.

[0037] In one embodiment, the probe assembly includes a probe mounting plate 21005 on which a current probe 21003 used for charging and discharging the battery and a temperature probe 21006 for monitoring the battery temperature are mounted vertically. A probe telescopic cylinder 21002 is mounted on the central axis of a probe telescopic cylinder mounting plate 21009, the piston rod end of the probe telescopic cylinder 21002 is fixed on the probe mounting plate 21005, and two guide shafts 21004 are mounted vertically on the probe mounting plate 21005. The guide shafts 21004 vertically pass through a bearing 21001 on the probe telescopic cylinder mounting plate 21009, and the probe mounting plate 21005 can be moved up and down along the guide shafts 21004 under the action of the probe telescopic cylinder 21002.

[0038] In one embodiment, a slider 21000 is mounted on the probe extension cylinder mounting plate 21009, and the slider 21000 engages with a slide rail 2102, allowing the probe set 2100 to move back and forth along the slide rail 2102.

[0039] In one embodiment, hooks 203 for fixing the needle plate assembly 2 onto the upper frame 10 are installed on the front mounting plate 200 and the rear mounting plate 206, respectively, a module cooling fan 204 for dissipating heat from the circuit board 202 is installed on the left mounting plate 205, and constricted holes for facilitating airflow are arranged at intervals along the front-to-back direction on the right mounting plate 201.

[0040] In one embodiment, several tray guide blocks 4000 are installed on the front and rear sides of the upper middle frame member 40 at intervals along the left-right direction. The tray guide blocks 4000 are mounted vertically on the upper middle frame member 40 and position the constant pressure tray assembly 3 from three directions: front, rear, left, and right.

[0041] In one embodiment, engagement grooves 310 are provided at both ends of the tray liner plate 302 to engage with the liner guide shaft 308, and the tray liner plate 302 can move back and forth along the liner guide shaft 308, and the tray bottom frame 303 is fixed to the lowest end of the liner guide shaft 308.

[0042] In one embodiment, the piston rod end of the reset cylinder 2107 is connected to the reset cylinder fixing plate 2108 via a connecting angle member 2106, and the reset cylinder fixing plate 2108 is slidably mounted on a slide rail 2102.

[0043] In one embodiment, both ends of the multiple motion shafts 12 are vertically fixed between the bottom of the upper frame 10 and the top of the bottom frame 11 via support bases 101.

[0044] In one embodiment, coolers 14 are fixed to both the left and right sides of the upper frame 10, and the coolers 14 are fixed to both sides of the upper frame 10 by angle steel. The coolers 14 are in contact with chilled water and are used to lower the temperature inside the equipment and keep the temperature inside the equipment constant.

[0045] In one embodiment, a smoke exhaust fan 100 is installed on the upper frame 10 and connected to an external smoke exhaust duct.

[0046] In one embodiment, tray clamp cylinders 4005 are horizontally installed on the side of the left and right work positions where there are no tray guide blocks 4000, and a horizontal force is applied to the constant pressure tray assembly 3 to prevent it from warping. A second linear bearing 4006 is mounted vertically on the upper middle frame member 40 and is used to slidably mount the upper middle frame member 40 on the motion axis 12. A feed cylinder 4011 is attached to the central axis of the upper middle frame member 40 and is fixed to the upper middle frame member 40 via a feed cylinder fixing plate 4002. Above the upper middle frame member 40, one set of tray cooling fans 4001 is installed for each work position and is used to dissipate heat from the battery 301. Each upper middle frame member 40 corresponding to a work position is equipped with a tray vertical position sensor 4003, an infrared temperature sensor 4004, and a tray code reader 4009. A motion mechanism stopper 4008 is vertically installed on the upper middle frame member 40 to prevent the lifting cylinder 4012 from raising the motion mechanism too high and colliding with the needle plate assembly 2.

[0047] In one embodiment, the tray support column 413 is mounted vertically on the middle and lower frame member 41 via a support column fixing member 412, a tray horizontal position sensor 411 and a tray support nylon block 416 are installed on the tray support column 413, a first linear bearing 414 is installed on the middle and lower frame member 41 at a position corresponding to the motion axis 12 and is used to slidably mount the middle and lower frame member 41 on the motion axis 12, and a first cylinder mounting joint 415 for attaching a feed cylinder 4011 is installed on the middle and lower frame member 41.

[0048] In one embodiment, a cylinder bus 2101 is mounted on the probe front fixing plate 2109-1 and is used to consolidate the air tubes of the cylinders in the needle plate assembly 2 and to make the wiring neater. The slide rail 2102 is mounted below the probe left fixing plate 2110-1 and the probe right fixing plate 2110-2 via the slide rail fixing plate 2111, and a stopper block 2103 is installed in front of the slide rail 2102 to prevent the probe set 2100 from falling off the slide rail 2102.

[0049] In one embodiment, the needle plate mounting pulley 103 is used to support the needle plate assembly 2. As can be seen from Figure 3d, there is a gap between the needle plate mounting pulley 103 and the square tube rack 106, allowing the needle plate fixing slide rail 207 to be inserted into the gap. After the needle plate assembly 2 is pushed in by hand, the needle plate assembly 2 is fixed below the upper frame 10 by the needle plate pre-mounting fixing plate 104 and the needle plate post-mounting fixing plate 105.

[0050] In one embodiment, a cable drag chain 4014 is installed on both sides of the motion mechanism assembly 4 and is used to protect the wires extending from the motion mechanism assembly 4 when the motion mechanism assembly 4 moves up and down.

[0051] In one embodiment, an ambient thermometer 2105 for monitoring ambient temperature is installed within the above-described housing structure.

[0052] The present invention can accommodate batteries with a maximum thickness of 44 mm and a minimum thickness of 36 mm. From Figure 16, it can be seen that the coupling blocks 21007 of the front four probe sets 2100 are longer than the coupling blocks 21007 of the rear five probe sets 2100. Therefore, when the constant pressure tray assembly 3 rises, the coupling blocks 21007 of the front four probe sets 2100 contact the coupling heads 311 of the constant pressure tray assembly first. From Figure 19, it can be seen that the first pair of coupling heads 311 of the constant pressure tray assembly 3 are always centered on the coupling blocks 21007 of the first pair of probe sets 2100. As the batteries are aligned, errors begin to appear between the interlocking head 311 and interlocking block 21007 starting with the second set of batteries, and the errors become larger as the interlocking head 311 and interlocking block 21007 move further back. The five rear probe sets 2100 are moved backward by the pressure of the four front sets, and the guide block 2104 is positioned at the very rear of all the probe sets 2100. At this point, the guide block 2104 comes into contact with the interlocking head 311 of the last set of tray liner plates, and the lifting cylinder 4012 continues to move the constant pressure tray assembly 3 upward, causing the guide block 2104 to move backward. Connecting springs 21008 are attached to both sides of the probe extension cylinder mounting plate 21009, connecting all probe sets 2100 and guide blocks 2104. When the guide block 2104 moves backward, the five probe sets 2100 at the rear move backward, and the spacing between the probe sets 2100 is made approximately the same, thereby aligning all the coupling heads 311 and coupling blocks 21007. A current probe 21003 and a temperature probe 21006 are vertically mounted on the needle plate mounting plate and are used to monitor the charging and discharging of the battery and the battery temperature, in order to ensure temperature consistency during the battery charging process.

[0053] As described above, examples of the present invention have been shown and explained. However, these examples are illustrative and should not be understood as limitations on the present invention. Those skilled in the art will understand that changes, modifications, substitutions, and variations can be made to the above examples within the scope of the present invention.

Claims

1. In a water-cooled constant-pressure system that operates with batteries of different thicknesses, the rack assembly (1) includes a horizontally installed upper frame (10) and a lower frame (11), the lower frame (11) is located below the upper frame (10) and is fixedly connected by a plurality of support columns (13), and the extension direction of the long side of the upper frame is defined as the left-right direction, and the extension direction of the short side of the upper frame is defined as the front-back direction, A lifting cylinder mounting plate (102) is fixed to the lower part of the upper frame (10), and the lower part of the lifting cylinder mounting plate (102) is engaged with the motion mechanism assembly (4), and multiple motion shafts (12) are arranged between the upper frame (10) and the bottom frame (11). Below the upper frame (10) a needle plate assembly (2) is installed, and above each work position there is a set of needle plate assemblies (2) which include a power module member (20) and different type needle plate members (21), the different type needle plate members (21) are located below the power module member (20), and the different type needle plate members (21) include a probe front fixing plate (2109-1), a probe rear fixing plate (2109-2), a probe left fixing plate (2110-1), and a probe right fixing plate (2110-2), the probe front fixing plate (2109-1), The rear lobe fixing plate (2109-2), the left probe fixing plate (2110-1), and the right probe fixing plate (2110-2) jointly surround the housing structure, and slide rails (2102) are installed below the left probe fixing plate (2110-1) and the right probe fixing plate (2110-2), respectively. On the housing structure, probe sets (2100) are arranged at intervals along the front-to-back direction, and each probe set (2100) includes a probe telescopic cylinder mounting plate (21009) that corresponds one-to-one with a probe telescopic cylinder (21002), and the probe The probe assembly is attached to the bottom of the probe extension cylinder mounting plate (21009), and under the action of the probe extension cylinder (21002), the probe assembly can move up and down along the guide shaft (21004), and sliders (21000) that engage with the slide rails (2102) are provided at positions corresponding to the slide rails (2102) on both sides of the probe extension cylinder mounting plate (21009), and the probe extension cylinder mounting plate (21009) is slidably installed on the slide rails (2102) and aligned in the front-rear direction. Interlocking blocks (21007) are vertically installed at both ends of the bottom of the probe telescopic cylinder mounting plate (21009), and adjacent probe telescopic cylinder mounting plates (21009) are connected by connecting springs (21008). A reset cylinder (2107) is installed along the front-to-back direction on the side of the probe rear fixing plate (2109-2) facing the inside of the housing structure, and is slidably mounted on a slide rail (2102). The reset cylinder (2107) pushes the reset cylinder fixing plate (2108) horizontally, moving the probe set (2100). The constant-pressure tray assembly (3) includes a tray bottom frame (303) horizontally installed below the needle plate assembly (2), with a front fixing plate (300) and a rear fixing plate (307) installed at the front and rear of the tray bottom frame (303), respectively, and a liner guide shaft (308) installed between the ends of the front fixing plate (300) and the rear fixing plate (307) at a gap from top to bottom, allowing the tray liner plate (302) to move back and forth along the liner guide shaft (308), and the front fixing plate (300), rear fixing plate (307) and liner guide shaft (308) jointly surround it. The tray frame is formed in such a way that tray liner plates (302) are arranged horizontally inside the tray frame at intervals along the front-to-back direction, and a push plate (304) and a screw (306) are installed inside the tray frame between the tray liner plates (302) and the rear fixing plate (307), of which the tray liner plate (302) closest to the rear fixing plate (307) is used to support the tray push plate (304), and the remaining tray liner plates (302) are used to support the battery (301), and at the center position of the rear fixing plate (307) A trapezoidal nut (305) is mounted horizontally, one end of the screw (306) is connected to the tray push plate (304), and the other end passes through the trapezoidal nut (305) and is exposed outside the tray frame, and can rotate within the trapezoidal nut (305). By rotating the screw (306), the initial spacing between the tray liner plates (302) is adjusted, and if expansion occurs during the charging process of the battery (301), the tray liner plates (302) can move back and forth along the liner guide shaft (308), and the screw (306) pushes... The tray liner plate (304) is pressed horizontally to apply a horizontal forward force, and on the surfaces of both ends of the tray liner plate (302) facing the coupling block (21007), coupling heads (311) that dock with the coupling block (21007) are installed. When the battery (301) expands, the coupling block (21007) follows the coupling heads (311), and at the same time, the entire probe set (2100) moves along the slide rail (2102), thereby ensuring the accuracy of the alignment between the current probe (21003) and the battery poles. The motion mechanism assembly (4) is used to support the constant pressure tray assembly (3) and can move up and down along the motion axis (12). The submersible fire extinguishing assembly (6) is located between the constant-pressure tray assembly (3) and the bottom frame (11), and in the event of a battery fire, the battery (301) will be submerged in the submersible fire extinguishing assembly (6), thereby fulfilling the purpose of fire extinguishing. The constant pressure assembly (7) is located on one side of the rack assembly (1) and engages with the tray push plate (304) to make real-time adjustments to the pressure the battery (301) receives, thereby ensuring that the pressure the battery (301) receives remains constant after it expands. A water-cooled constant-pressure system that operates in conjunction with batteries of varying thicknesses.

2. The motion mechanism assembly (4) includes an upper middle frame member (40) and a lower middle frame member (41), the upper middle frame member (40) and the lower middle frame member (41) are each slidably mounted on the motion axis (12), The upper middle frame member (40) is located above the lower middle frame member (41) and is used to position the constant pressure tray assembly (3) and to dock the constant pressure tray assembly (3) with the needle plate assembly (2). The lower middle frame member (41) is horizontally installed above the bottom frame (11) and is used to load and unload materials into the constant pressure tray assembly (3). A water-cooled constant-pressure system that operates in conjunction with batteries of different thicknesses as described in claim 1.

3. The submersible fire extinguishing assembly (6) includes a water tank body (601) and an extinguishing cylinder (4013), the extinguishing cylinder (4013) is installed on a rising cylinder fixing plate (4015), and the piston rod end of the extinguishing cylinder (4013) is fixed on a second cylinder mounting joint (4007), the upper end of the motion shaft (12) is fixed on an upper frame (10), and the lower end is fixed inside the water tank body (601), the extinguishing cylinder (4013) causes the motion mechanism assembly (4) to slide up and down along the motion shaft (12), and when the battery ignites, the motion mechanism assembly (4) sinks the battery (301) into the water tank body (601) under the action of the extinguishing cylinder (4013), thereby fulfilling the purpose of fire extinguishing, as described in claim 1, a water-cooled constant pressure system that is driven by batteries of different thicknesses.

4. The constant pressure assembly (7) includes a mounting base plate (75) installed horizontally on the ground, with the longer side of the mounting base plate (75) defined as the left-right direction and the shorter side of the mounting base plate (75) defined as the front-back direction. Four support columns (76) are installed vertically on the mounting base plate (75), and an electric cylinder mounting plate (77) is installed horizontally on the upper end of the support columns (76). A servo electric cylinder (71) is installed on the electric cylinder mounting plate (77), and the servo electric cylinder (71) is connected to a pressure plate (78) via an electric cylinder output shaft. Four pressure output shafts (74) are installed on the side of the pressure plate (78) furthest from the servo electric cylinder (71), and the installation positions of the pressure output shafts (74) are A water-cooled constant pressure system for batteries of different thicknesses according to claim 1, characterized in that a restraint hole on a trapezoidal nut (305) corresponds one-to-one with the pressure output shaft (74), one end of which is fixed to the pressure plate (78) and the other end is connected to the tray push plate (304) through the restraint hole, a pressure sensor (73) is installed between the electric cylinder output shaft and the pressure plate (78), the pressure sensor (73) is used to monitor the pressure received by the battery (301) in real time, and by adjusting the pressure received by the battery (301) in real time through the servo electric cylinder (71), it is ensured that the pressure received by the battery (301) remains constant after the battery (301) expands.

5. Multiple sets of feed rollers (410) are installed on the middle and lower frame member (41) at intervals along the front-to-back direction, the front end of the middle and lower frame member (41) is on the equipment supply side, and a tray support column (413) is installed vertically at the rear end of the middle and lower frame member (41). The upper middle frame member (40) has a symmetrical structure and has two working positions on the left and right, allowing two constant-pressure tray assemblies (3) to be placed on it simultaneously. Each working position is equipped with a tray guide block (4000) to assist in positioning the constant-pressure tray assembly (3). A tray positioning pin (4010) is installed on the upper middle frame member (40), and the tray positioning pin (4010) engages with a positioning hole (309) on the tray bottom frame (303) to achieve the positioning of the constant-pressure tray assembly (3). A water-cooled constant-pressure system that operates in conjunction with batteries of different thicknesses as described in claim 2.

6. A water-cooled constant-pressure system for batteries of different thicknesses, as described in claim 5, characterized in that a lifting cylinder (4012) is installed below the lifting cylinder mounting plate (102), and the piston rod end of the lifting cylinder (4012) is fixed on the lifting cylinder fixing plate (4015).

7. The probe assembly includes a probe mounting plate (21005), on which a current probe (21003) used for charging and discharging the battery and a temperature probe (21006) for monitoring the battery temperature are mounted vertically. A probe telescopic cylinder (21002) is mounted on the central axis of a probe telescopic cylinder mounting plate (21009), the piston rod end of the probe telescopic cylinder (21002) is fixed on the probe mounting plate (21005), and two guide shafts (21004) are mounted vertically on the probe mounting plate (21005). The guide shafts (21004) vertically pass through a bearing (21001) on the probe telescopic cylinder mounting plate (21009), and the probe mounting plate (21005) can be moved up and down along the guide shafts (21004) under the action of the probe telescopic cylinder (21002). A slider (21000) is installed on the probe extension cylinder mounting plate (21009), and the slider (21000) engages with the slide rail (2102), allowing the probe set (2100) to move back and forth along the slide rail (2102). A water-cooled constant-pressure system that operates in conjunction with batteries of different thicknesses as described in claim 1.

8. The water-cooled constant-pressure equipment for batteries of different thicknesses according to claim 2, characterized in that tray guide blocks (4000) are installed on the front and rear sides of the central upper frame member (40) at intervals along the left-right direction, the tray guide blocks (4000) are mounted vertically on the central upper frame member (40), and the constant-pressure tray assembly (3) is positioned from three directions: front, rear, left, and right.

9. The tray liner plate (302) is provided with engagement grooves (310) at both ends that engage with the liner guide shaft (308), and is movable back and forth along the liner guide shaft (308), and the tray bottom frame (303) is fixed to the lowest end of the liner guide shaft (308), characterized in that a water-cooled constant pressure system for batteries of different thicknesses according to claim 1.

10. The piston rod end of the reset cylinder (2107) is connected to the reset cylinder fixing plate (2108) via a connecting corner member (2106), and the reset cylinder fixing plate (2108) is slidably installed on the slide rail (2102), characterized in that the water-cooled constant pressure equipment for batteries of different thicknesses according to claim 1.

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