Exhaust mechanism, exhaust equipment and battery production line

Abstract

An exhaust mechanism, exhaust equipment and battery production line, the exhaust mechanism includes a transmission member, an air guide assembly and a connecting rod assembly, the transmission member and the air guide assembly are movably arranged, the connecting rod assembly is connected between the transmission member and the air guide assembly; the transmission member is used to move under the push of an external driving force; the connecting rod assembly is used to transmit the power of the transmission member to the air guide assembly, and push the air guide assembly to a relative position with the injection hole of the battery to extract the gas from the battery. The technical solution of the present application drives the air guide assembly to move through the transmission member and the connecting rod assembly, thereby reducing the use of motors or cylinders, simplifying the structure of the exhaust mechanism, reducing the manufacturing cost of the exhaust mechanism, reducing the number of openings in the negative pressure chamber, and reducing the influence of the exhaust mechanism on the sealing of the exhaust equipment.

Description

Technical Field

[0001] The present application relates to the technical field of battery detection, and in particular to an exhaust mechanism, exhaust equipment and a battery production line. Background Art

[0002] In the related art, the alignment between the exhaust mechanism and the battery filling hole is usually completed by a motor or a cylinder. This also leads to the fact that when designing the exhaust mechanism, it is inevitable to set a threading hole on the wall of the negative pressure chamber to facilitate the wires and air pipes of the motor or cylinder to pass out, which will undoubtedly affect the sealing of the negative pressure chamber. Summary of the invention

[0003] The purpose of this application is to provide an exhaust mechanism, exhaust equipment and a battery production line, aiming to solve the problem in the related art that the driving mode of the exhaust mechanism may affect the sealing of the exhaust equipment.

[0004] To achieve the purpose of the present application, in a first aspect, the present application provides an exhaust mechanism, the exhaust mechanism comprising a transmission member, an air guide assembly and a connecting rod assembly, the transmission member and the air guide assembly are movably arranged, and the connecting rod assembly is connected between the transmission member and the air guide assembly;

[0005] The transmission member is used to move under the push of an external driving force; the connecting rod assembly is used to transmit the power of the transmission member to the gas guide assembly, and push the gas guide assembly to a relative position with the injection hole of the battery to guide the gas of the battery.

[0006] In a possible implementation, the air guide assembly includes an air guide tube and a positioning seat, and the air guide tube is arranged on the positioning seat;

[0007] The positioning seat is used to drive the air guide tube to be positioned relative to the liquid injection hole of the battery.

[0008] In a possible implementation, the air guide assembly further includes a first drive assembly, and the first drive assembly is used to drive the positioning seat to move; the first drive assembly includes:

[0009] A sliding bracket, the sliding bracket is movably arranged along a first direction, and the sliding bracket is connected to the connecting rod assembly;

[0010] An air guide bracket, wherein the air guide bracket is movably arranged along the second direction to set the sliding bracket, and the positioning seat is movably arranged on the air guide bracket;

[0011] A push member, wherein the push member is used to contact the air guide bracket when the sliding bracket moves along the first direction, and push the air guide bracket to move along the second direction.

[0012] In a possible implementation, the first driving component further includes:

[0013] A reset seat, the reset seat being arranged on the air guide bracket;

[0014] A first elastic member, one end of which is connected to the reset seat, and the other end of which is connected to the positioning seat.

[0015] In a possible implementation, the first driving assembly further includes a top stopper, which is movably disposed on the reset seat; one end of the top stopper is used to contact a side of the positioning seat away from the first elastic member.

[0016] In a possible implementation, the positioning seat includes a seat body and a positioning plate, the air guide tube is provided on the seat body, and the positioning plate is used to contact with a positioning plate of a battery tray;

[0017] The seat body is provided with a movable hole, and the positioning plate is at least partially movably disposed in the movable hole.

[0018] In a possible implementation, the exhaust mechanism includes a plurality of positioning seats, and each of the positioning seats is arranged on the sliding bracket at intervals along the second direction.

[0019] In a possible implementation, the connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is connected to the transmission member, and the second connecting rod is connected to the first connecting rod and the air guide assembly.

[0020] In a possible implementation, the first connecting rod is movably disposed along a third direction, and the second connecting rod is movably disposed along the first direction, and the third direction and the first direction are two intersecting directions.

[0021] In a possible implementation, the connecting rod assembly further includes a third connecting rod, one end of the third connecting rod is rotatably connected to the first connecting rod, and the other end of the third connecting rod is rotatably connected to the second connecting rod.

[0022] In a possible implementation manner, the transmission member and the first connecting rod are constructed as an integral part.

[0023] In a possible implementation, the first connecting rod is provided with a threaded cavity, the transmission member is threadedly connected in the threaded cavity, and the position of the transmission member in the threaded cavity is adjustable.

[0024] In a second aspect, the present application further proposes an exhaust device, the exhaust device comprising:

[0025] An equipment rack, wherein the equipment rack forms a negative pressure chamber with an opening on one side;

[0026] a hatch, the hatch being movably mounted on the equipment rack and used to cover the opening; and

[0027] An exhaust mechanism, the exhaust mechanism is arranged in the negative pressure chamber, and a transmission member of the exhaust mechanism can move under the push of the hatch; the exhaust mechanism includes a transmission member, an air guide assembly and a connecting rod assembly, the transmission member and the air guide assembly are movably arranged, and the transmission member is used to move under the push of the hatch of the exhaust device;

[0028] The connecting rod assembly is connected between the transmission member and the gas guide assembly. The connecting rod assembly is used to transmit the power of the transmission member to the gas guide assembly and push the gas guide assembly to a relative position with the injection hole of the battery to guide the gas of the battery.

[0029] In a possible implementation, the exhaust device further includes a sealing ring, which is disposed on a side of the equipment frame facing the cabin door and is disposed around the opening;

[0030] The hatch is covered on the opening along the thickness direction of the sealing ring.

[0031] In a third aspect, the present application further proposes a battery production line, the battery production line comprising an exhaust device, the exhaust device comprising:

[0032] An equipment rack, wherein the equipment rack forms a negative pressure chamber with an opening on one side;

[0033] a hatch, the hatch being movably mounted on the equipment rack and used to cover the opening; and

[0034] An exhaust mechanism, the exhaust mechanism is arranged in the negative pressure chamber, and a transmission member of the exhaust mechanism can contact the hatch when the hatch cover is provided with the opening, so as to move under the push of the hatch; the exhaust mechanism comprises a transmission member, an air guide assembly and a connecting rod assembly, the transmission member and the air guide assembly are movably arranged, and the transmission member is used to move under the push of the hatch of the exhaust device;

[0035] The connecting rod assembly is connected between the transmission member and the gas guide assembly. The connecting rod assembly is used to transmit the power of the transmission member to the gas guide assembly and push the gas guide assembly to a relative position with the injection hole of the battery to guide the gas of the battery.

[0036] The technical solution of the present application drives the air guide assembly to move through a transmission member and a connecting rod assembly, thereby reducing the use of motors or cylinders, simplifying the structure of the exhaust mechanism, reducing the manufacturing cost of the exhaust mechanism, reducing the number of openings in the negative pressure chamber, and reducing the impact of the exhaust mechanism on the sealing of the exhaust equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0038] Figure 1 A schematic diagram of the structure of an embodiment of a battery production line provided in this application;

[0039] Figure 2 for Figure 1 A front view of the exhaust device;

[0040] Figure 3 for Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of the exhaust device;

[0041] Figure 4 for Figure 2 A magnified view at point A;

[0042] Figure 5 for Figure 2 Enlarged view at B;

[0043] Figure 6 for Figure 1 A schematic diagram of the three-dimensional structure of another embodiment of the exhaust device;

[0044] Figure 7 for Figure 6 Enlarged view at E;

[0045] Figure 8 for Figure 3 Enlarged view at C;

[0046] Fig. 9 for Figure 3 Enlarged view at D;

[0047] Fig.10 for Figure 1 Side view of the exhaust device;

[0048] Fig.11 This is a schematic diagram of the coordination between the exhaust equipment and the hatch;

[0049] Fig.12 for Fig.10 A schematic structural diagram of an embodiment of a middle connecting rod assembly;

[0050] Fig.13 for Fig.10 Schematic diagram of the three-dimensional structure of the central gas guide assembly;

[0051] Fig.14for Fig.13 A cross-sectional view of

[0052] Fig.15 for Fig.13 Schematic diagram of the coordination between the center positioning seat and the battery tray;

[0053] Fig.16 for Fig.11 A schematic diagram of the structure of the first drive assembly;

[0054] Fig.17 for Fig.13 A schematic diagram of a part of the structure after the positioning seat is hidden;

[0055] Fig.18 for Fig.11 Enlarged view at F;

[0056] Fig.19 for Fig.11 A schematic diagram of the structure of the clamping mechanism;

[0057] Fig. 20 for Fig.11 Enlarged view at G;

[0058] Fig.21 A schematic diagram of the coordination between the limit assembly and the battery tray.

[0059] Description of reference numerals:

[0060] 1000 battery production line;

[0061] 100 exhaust equipment, 1 equipment rack, 11 negative pressure chamber, 12 air extraction port, 13 pressure relief port, 14 observation port;

[0062] 2 exhaust mechanism, 21 frame, 22 air guide assembly, 221 sliding bracket, 222 air guide pipe, 2221 tube body, 2222 elastic suction nozzle, 223 positioning seat, 2231 seat body, 2232 positioning plate, 2233 movable hole, 2234 reset part, 224 first driving assembly, 2241 air guide bracket, 2242 push piece, 2243 reset seat, 2244 first elastic piece, 2245 top stop piece, 2246 support column, 2247 fifth guide rail, 2248 fifth slider, 23 connecting rod assembly, 231 first connecting rod, 232 second connecting rod, 233 third connecting rod, 24 second elastic Component, 25 clamping mechanism, 251 first clamping part, 252 second clamping part, 253 second driving assembly, 2531 driving rod, 2532 first roller, 2533 second roller, 2534 third elastic member, 254 clamping space, 26 limiting assembly, 261 push plate, 262 third roller, 263 fourth elastic member, 264 guide shaft, 27 transmission member, 28 tray support assembly, 281 mounting rod, 282 fourth roller, 29 fifth roller, 210 first guide rail, 220 first slider, 230 second guide rail, 240 second slider, 250 sixth guide rail, 260 sixth slider;

[0063] 3 door, 31 locking portion, 311 locking plate, 312 groove, 313 body, 314 first locking arm, 315 second locking arm;

[0064] 4 third driving assembly, 41 first cylinder, 42 sprocket, 43 chain, 44 third guide rail, 45 third slider;

[0065] 5. Sealing ring;

[0066] 6 fourth drive assembly, 61 door mounting plate, 62 second cylinder, 63 fourth guide rail, 64 fourth slide block;

[0067] 7 locking device, 71 third cylinder, 72 locking block;

[0068] 200 assembly line;

[0069] 300 handling mechanism;

[0070] 400 battery tray, 410 alignment plate, 420 limit slot;

[0071] 500 battery, 510 filling hole. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0073] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0074] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0075] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0076] Please refer to Figure 1 , the present application proposes a battery production line 1000, the battery production line 1000 includes battery assembly equipment (not shown in the figure), battery filling equipment (not shown in the figure), battery testing equipment (not shown in the figure), exhaust equipment 100, assembly line 200 and conveying mechanism 300. The assembly line 200 is arranged between various equipment to transport production materials between various equipment. The conveying mechanism 300 is erected on the assembly line 200 to transport materials on the assembly line 200 to various equipment. The assembly line 200 can be a roller line, a double-speed chain line, or a belt line. The conveying mechanism 300 can be a manipulator, a stacker, or a gantry hammock, and the present application does not impose any restrictions on this.

[0077] The battery assembly equipment is used to integrate the battery's pole core, pole, shell and other parts into one to form a battery cell. The battery injection equipment is used to inject electrolyte into the battery cell to form a battery. The battery testing equipment is used to test the electrical properties of the battery. After the battery has undergone testing steps such as high-temperature standing, high-temperature aging, and normal-temperature standing, gas will be generated in the battery. In order to avoid the impact of gas on the use of the battery and subsequent testing, the battery is usually sent to the exhaust device 100 together with the battery tray after completing any of the above-mentioned testing steps. The exhaust device 100 is used to discharge the gas in the battery to the outside.

[0078] Please refer to Figure 2 and Figure 3 The exhaust device 100 includes an equipment rack 1, an exhaust mechanism 2, a hatch 3, and an air pressure pump (not shown in the figure). The equipment rack 1 serves as a supporting frame of the exhaust device 100 and is used to support and connect various components of the exhaust device 100. The equipment rack 1 can be rectangular, square, or other regular or irregular shapes. The material of the equipment rack 1 can be metal or non-metal, and this application does not limit this.

[0079] The equipment rack 1 is formed with a negative pressure chamber 11 with an opening on one side, and the negative pressure chamber 11 is provided with an air suction port 12 and a pressure relief port 13, and the air suction port 12 is connected to the air pressure pump. The equipment rack 1 is also provided with an observation port 14 covered with transparent glass, and the observation port 14 is used for the operator to observe the alignment of the exhaust mechanism 2 in the negative pressure chamber 11 and the injection hole of the battery.

[0080] The hatch 3 cover is set on the opening, and the hatch 3 is used to seal the opening so that a closed state is formed in the negative pressure chamber 11. The hatch 3 is movably set on the equipment rack 1, and can move relative to the equipment rack 1 along a first direction. The first direction can be an up-and-down direction, a front-and-back direction, or a left-and-right direction, and the present application does not limit this. To facilitate the description of the movement state of the hatch 3, the up-and-down direction is now taken as the first direction. The hatch 3 is movably set on the equipment rack 1 along the up-and-down direction. When the hatch 3 moves upward, the hatch 3 avoids the opening so that the battery can be placed in the negative pressure chamber 11. After the battery is placed in the negative pressure chamber 11, the hatch 3 moves downward to form a seal on the negative pressure chamber 11.

[0081] Please refer to Figure 4In order to drive the cabin door 3 to move in the first direction, the exhaust device 100 includes a third drive assembly 4, which may be a cylinder, a motor, or an electric cylinder, and the present application does not limit this. In one embodiment of the present application, the third drive assembly 4 includes a first cylinder 41, a sprocket 42, and a chain 43, and the sprocket 42 is arranged on the equipment rack 1. The chain 43 is wound around the sprocket 42, and the first end of the chain 43 is connected to the cabin door 3. The first cylinder 41 includes a first cylinder seat and a first piston rod, and the first cylinder seat is fixed to the side of the equipment rack 1. One end of the first piston rod is movably arranged in the first cylinder seat, and the other end is connected to the second end of the chain 43. The first cylinder 41 can drive the first piston rod to move, thereby driving the chain 43 to rotate around the sprocket 42, and driving the cabin door 3 to move in the first direction through the rotation of the chain 43. Compared with arranging a cylinder or a motor at the bottom or top of the equipment rack 1, and driving the cabin door 3 to move by directly connecting the cylinder or the motor. The present application sets a first driving member on the side of the equipment rack 1, converts the tension on the side of the first driving member into a tension on the hatch 3 through a chain 43, and drives the hatch 3 to move along the second direction. In this way, the equipment height of the exhaust equipment 100 can be effectively reduced, the applicability of the exhaust equipment 100 in some areas with insufficient height space can be improved, and the applicable scenarios of the exhaust equipment 100 can be increased.

[0082] Please refer to Figure 5 The third driving assembly 4 further includes a third guide rail 44 and a third slider 45. The third guide rail 44 is arranged on the equipment rack 1 along the second direction. The third slider 45 is slidably arranged on the third guide rail 44. The hatch 3 is mounted on the third slider 45. The third guide rail 44 and the third slider 45 are used to provide support for the installation of the hatch 3 on the equipment rack 1, while reducing the friction between the hatch 3 and the equipment rack 1, and improving the stability of the activity of the hatch 3.

[0083] Please refer to Figure 6 and Figure 7In order to ensure the sealing of the hatch 3 to the opening, the exhaust device 100 provided in the present application further includes a sealing ring 5, which is arranged on the side of the equipment rack 1 facing the hatch 3 and is arranged around the opening. The sealing ring 5 is used to contact the hatch 3 when the hatch 3 covers the opening, so as to form a seal between the hatch 3 and the equipment rack 1, reduce the gas flow between the hatch 3 and the equipment rack 1, and improve the sealing of the negative pressure chamber 11. The sealing ring 5 can be an O-type sealing ring 5, a C-type sealing ring 5, or a V-type sealing ring 5, and the present application does not limit this. In order to reduce the wear of the sealing ring 5 caused by the opening and closing of the hatch 3, in one embodiment of the present application, the hatch 3 can cover the opening along a third direction, and the third direction is the thickness direction of the sealing ring 5. In this way, when the hatch 3 covers the opening along the third direction, the hatch 3 will only squeeze the sealing ring 5 along its thickness direction, and will not slide relative to the sealing ring 5. In this way, the sliding distance between the hatch door 3 and the sealing ring 5 is reduced, and the wear of the sealing ring 5 caused by the opening and closing of the hatch door 3 is reduced.

[0084] The exhaust device 100 further includes a fourth drive assembly 6, which is used to drive the door 3 to move along the third direction. For ease of description, it is assumed here that the third direction is the front-rear direction of the equipment rack 1. The fourth drive assembly 6 includes a door mounting plate 61 and a second cylinder 62. The door mounting plate 61 is movably mounted on the equipment rack 1 along the third direction, and the door 3 is movably mounted on the door mounting plate 61 along the first direction; the second cylinder 62 includes a second cylinder seat and a second piston rod. The first cylinder seat is fixed to the equipment rack 1, one end of the first piston rod is movably arranged in the first cylinder seat, and the other end is connected to the door mounting plate 61 through a floating joint. When the door 3 needs to be opened, the second movable rod moves forward, thereby driving the door mounting plate 61 and the door 3 arranged on the door mounting plate 61 to move forward. When the door 3 moves forward to a preset position, the first piston rod moves downward, thereby driving the chain 43 to pull the door 3 to move upward, and opening the negative pressure chamber 11. When the door 3 needs to be closed, the first piston rod moves upward, driving the door 3 to move downward. When the cabin door 3 moves downward to a preset position, the second piston rod moves backward, driving the cabin door mounting plate 61 and the cabin door 3 to move backward, and the cabin door 3 contacts the opening port of the negative pressure chamber 11, thereby sealing the negative pressure chamber 11.

[0085] In order to ensure the smooth operation of the hatch 3 along the third direction, in one embodiment of the present application, the fourth driving assembly 6 also includes a fourth guide rail 63 and a fourth slider 64. The fourth guide rail 63 is arranged on the equipment rack 1 along the third direction, and the fourth slider 64 is movably arranged on the fourth guide rail 63. The hatch mounting plate 61 is arranged on the fourth slider 64 and can move along the second direction with the slider. The third guide rail 44 is arranged on the hatch mounting plate 61 along the second direction. The hatch 3 is arranged on the hatch mounting plate 61 through the third guide rail 44 and the third slider 45, and can slide relative to the hatch mounting plate 61 along the second direction. The fourth guide rail 63, the fourth slider 64 and the hatch mounting plate 61 are used to provide support and connection for the movement of the hatch 3 on the equipment rack 1 along the third direction, and can also reduce the resistance of the equipment rack 1 to the movement of the hatch 3, thereby improving the stability of the movement of the hatch 3.

[0086] Please refer to Figure 3 The exhaust device 100 further includes a locking device 7, which is used to lock the hatch 3 when the hatch 3 is opened. Specifically, the locking device 7 includes a third cylinder 71 and a locking block 72. The third cylinder 71 includes a third cylinder seat and a third piston rod. The third cylinder seat is arranged on the equipment frame 1. One end of the third piston rod is movably arranged in the third cylinder seat, and the other end is connected to the locking block 72. Correspondingly, a locking portion 31 is provided on the hatch 3. When the hatch 3 moves downward to a preset position, the locking block 72 falls into the locking portion 31 and contacts the locking portion 31. When the hatch door 3 is covered at the opening, the third piston rod can pull the locking block 72 backwards, and the pulling force of the third piston rod can be transmitted to the hatch door 3 through the locking block 72 and the locking portion 31, so that the hatch door 3 maintains a movement trend close to the opening, thereby increasing the squeezing pressure of the hatch door 3 on the sealing ring 5, reducing the gap between the hatch door 3 and the sealing strip, and improving the sealing effect of the hatch door 3 on the negative pressure chamber 11.

[0087] The locking portion 31 can have various structural forms, please refer to Figure 8 In one embodiment of the present application, the locking portion 31 is disposed at the bottom of the hatch 3, and the locking portion 31 includes a locking plate 311, and a groove 312 is disposed at the bottom of the locking plate 311. When the hatch 3 moves downward to a preset position, the third piston rod falls into the groove 312, and the locking block 72 contacts the side of the locking plate 311 facing away from the opening. When the hatch 3 is covered with an opening, the locking block 72 can contact the side of the locking plate 311 facing away from the opening under the drive of the third movable rod, thereby pushing the locking plate 311 and the hatch 3 connected to the locking plate 311 to move toward the opening, thereby improving the sealing effect of the hatch 3 on the opening.

[0088] Please refer to Fig. 9In other possible implementations of the present application, the locking portion 31 may also be disposed at the top of the hatch 3, and the locking portion 31 includes a body 313, a first locking arm 314, and a second locking arm 315. The body 313 is connected to the hatch 3, one end of the first locking arm 314 and the second locking arm 315 are connected to the body 313, and the other ends are spaced apart from each other, and the first locking arm 314 and the second locking arm 315 are arranged to form a locking space. When the hatch 3 moves downward to a preset position, the locking block 72 falls into the locking space, and the third piston rod passes through the gap between the first locking arm 314 and the second locking arm 315 and extends into the locking space. When the hatch 3 is covered at the opening, the locking block 72 can, driven by the third movable rod, contact the first locking arm 314 and the second locking arm 315 on the side facing away from the opening, thereby pushing the first locking arm 314, the second locking arm 315 and the hatch 3 connected to the first locking arm 314 and the second locking arm 315 to move toward the opening, thereby improving the sealing effect of the hatch 3 on the opening.

[0089] One or two locking devices 7 may be provided, and the present application does not impose any restriction on this. In one possible implementation mode of the present application, the exhaust device 100 includes two fourth drive assemblies 6 and four locking devices 7, and the two fourth drive assemblies 6 are respectively arranged on the left and right sides of the hatch 3. Among the fourth locking devices 7, two locking devices 7 are arranged at the top of the hatch 3, and the other two locking devices 7 are arranged at the bottom of the hatch 3. The two fourth drive assemblies 6 cooperate with the four locking devices 7 to form six evenly distributed force points in the hatch 3, so as to ensure the uniformity of the pressure of the hatch 3 on the sealing strip and improve the sealing effect of the hatch 3.

[0090] Please refer to Figure 2 , the exhaust mechanism 2 is arranged in the negative pressure chamber 11. When the battery is placed in the negative pressure chamber 11, the hatch 3 is closed, and the exhaust mechanism 2 is aligned with the injection hole of the battery. Subsequently, the exhaust device 100 turns on the air pressure pump to evacuate the negative pressure chamber 11. When the air pressure in the negative pressure chamber 11 reaches the preset pressure value, the air pressure pump stops evacuating and maintains the pressure in the negative pressure chamber 11. The preset pressure value can be set according to actual use requirements, generally not less than -69kpa. In this process, the gas in the battery will flow upward under the action of negative pressure, and will be discharged into the negative pressure chamber 11 through the injection hole and the exhaust mechanism 2. When the exhaust device 100 maintenance reaches the preset time, the exhaust device 100 opens the pressure relief port 13 and the hatch 3 to end the exhaust, and the battery is taken out by the transport mechanism 300.

[0091] In the related art, the alignment between the exhaust mechanism 2 and the battery liquid injection hole is usually completed by a motor or a cylinder drive. This also leads to the exhaust mechanism 2 inevitably needing to set a threading hole on the cavity wall of the negative pressure cavity 11 when designing the structure, so as to facilitate the wires and air pipes of the motor or cylinder to pass out, which will undoubtedly affect the sealing of the negative pressure cavity 11.

[0092] Please refer to Figures 10 to 12 In order to solve the above problems, the present application provides an exhaust mechanism 2, which includes a transmission member 27, an air guide assembly 22 and a connecting rod assembly 23. The transmission member 27 and the air guide assembly 22 are movably arranged, and the transmission member 27 is used to move under the push of an external driving force; the connecting rod assembly 23 is connected between the transmission member 27 and the air guide assembly 22, and the connecting rod assembly 23 is used to transmit the power of the transmission member 27 to the air guide assembly 22, and push the air guide assembly 22 to be relative to the injection hole of the battery to extract the gas of the battery. The technical solution of the present application drives the air guide assembly 22 to move through the transmission member 27 and the connecting rod assembly 23. In this way, the use of motors or cylinders can be reduced, the structure of the exhaust mechanism 2 can be simplified, the manufacturing cost of the exhaust mechanism 2 can be reduced, the number of openings of the negative pressure chamber 11 can be reduced, and the influence of the exhaust mechanism 2 on the sealing of the exhaust device 100 can be reduced.

[0093] Hereinafter, the exhaust mechanism 2 provided in the present application will be described in detail with reference to the accompanying drawings.

[0094] Please refer to Fig.10 and Fig.11 The exhaust mechanism 2 includes a transmission member 27, one end of which is connected to the connecting rod assembly 23. The transmission member 27 can move under an external driving force, which can be provided by a motor, a cylinder, or manpower, and the present application does not limit this. In one embodiment of the present application, the transmission member 27 at least partially extends out of the negative pressure chamber (or the hatch 3 at least partially extends into the negative pressure chamber). When the hatch 3 is covered in the negative pressure chamber, the transmission member 27 contacts the hatch 3 and pushes the transmission member 27 to move. Compared with other methods, the use of the hatch 3 to push the transmission member 27 can effectively reduce the use of other transmission structures, optimize the structure of the exhaust mechanism 2, reduce the production cost of the exhaust mechanism 2, reduce the number of openings in the negative pressure chamber 11, and reduce the influence of the exhaust mechanism 2 on the sealing of the exhaust device 100.

[0095] The connecting rod assembly 23 is connected between the transmission member 27 and the gas guide assembly 22. The connecting rod assembly 23 is used to convert the movement of the transmission member 27 into the movement of the gas guide assembly 22, and push the gas guide assembly 22 to contact the injection hole of the battery, thereby discharging the gas in the battery to the outside. It can be understood that in some possible implementations of the present application, the exhaust mechanism 2 may also include a frame 21, which serves as the main body of the exhaust mechanism 2 and is used to support and connect other parts of the exhaust structure. The transmission member 27, the connecting rod assembly 23 and the gas guide assembly 22 are movably arranged on the frame 21.

[0096] In order to facilitate the description of the motion state of the transmission member 27, the connecting rod assembly 23 and the air guide assembly 22, it is now assumed that the air guide assembly 22 is movably arranged on the frame 21 along the first direction, and the transmission member 27 is arranged on the frame 21 along the second direction. In order to improve the stability of the operation of the transmission member 27, in one embodiment of the present application, the exhaust mechanism 2 includes a first guide rail 210 and a first slider 220, the first guide rail 210 is movably arranged on the frame 21 along the first direction, the first slider 220 is slidably arranged on the first guide rail 210, and the first slider 220 is provided with a clamping groove. The transmission member 27 is clamped in the clamping groove. The first guide rail 210 and the first slider 220 are used to provide connection and guidance for the setting of the transmission member 27 on the frame 21, thereby reducing the movement resistance of the frame 21 to the transmission member 27 and improving the stability of the movement of the transmission member 27.

[0097] Please refer to Fig.12 The connecting rod assembly includes a first connecting rod 231 and a second connecting rod 232. The first connecting rod 231 is connected to the transmission member 27. There are multiple ways to connect the first connecting rod 231 and the transmission member 27. In one embodiment of the present application, the first connecting rod 231 and the transmission member 27 are constructed as an integral part, so that the installation process of the first connecting rod 231 and the transmission member 27 is eliminated, the assembly efficiency of the first connecting rod 231 and the transmission member 27 is improved, and the assembly cost of the exhaust mechanism 2 is reduced. The first connecting rod 231 and the transmission member 27 can also be formed separately and then connected to each other. In one embodiment of the present application, the first connecting rod 231 is provided with a threaded cavity, and the transmission member 27 is threadedly connected in the threaded cavity. The first connecting rod 231 and the transmission member 27 are threadedly connected. At the same time, by adjusting the depth of the transmission member 27 screwed into the threaded cavity, the relative position of the transmission member 27 and the first connecting rod 231 can be adjusted, so that the transmission member 27 can contact with the cabin door 3 of different specifications, improve the tolerance of the cabin door 3 processing, and reduce the processing cost of the cabin door 3.

[0098] The second connecting rod 232 is connected to the first connecting rod 231 and the air guide assembly 22. The power of the transmission member 27 can be transmitted to the air guide assembly 22 through the first connecting rod 231 and the second connecting rod 232, and drive the air guide assembly 22 to move. The first connecting rod 231 and the second connecting rod 232 can be movably arranged in the same direction (in this case, the movement direction of the transmission member 27 and the air guide assembly 22 is the same), and the first connecting rod 231 and the second connecting rod 232 can also be movably arranged in different directions.

[0099] In order to optimize the spatial structure of the transmission member 27 and the air guide assembly 22, in one embodiment of the present application, the first connecting rod 231 is movably arranged along the third direction, and the second connecting rod 232 is movably arranged along the first direction, and the third direction and the first direction are two intersecting directions. In this way, the transmission member 27 and the air guide assembly 22 are prevented from excessively occupying the spatial structure in a single direction, and the space utilization rate of the transmission member 27 and the air guide assembly 22 relative to the rack 21 is improved.

[0100] In order to drive the transmission member 27 and the air guide assembly 22 to move in different directions, in one embodiment of the present application, the connecting rod assembly 23 further includes a third connecting rod 233, one end of the third connecting rod 233 is rotatably connected to the first connecting rod 231, and the other end is rotatably connected to the second connecting rod 232. When the transmission member 27 moves along the third direction under the push of the hatch 3, the transmission member 27 drives the first connecting rod 231 to move along the third direction. The first connecting rod 231 moves, driving the third connecting rod 233 to rotate counterclockwise, and the third connecting rod 233 rotates, driving the second connecting rod 232 to move along the first direction, and finally driving the air guide assembly 22 to move along the first direction, thereby achieving communication between the air guide assembly 22 and the battery injection hole.

[0101] It can be understood that in other possible implementations of the present application, the connecting rod assembly 23 may also include a slider and a rocker. Specifically, the rocker includes a driving part, a driven part, and a hinged part provided between the driving part and the driven part, the driving part of the rocker is connected to the transmission member 27, the driven part of the rocker is rotatably connected to the slider, and the slider is fixedly connected to the air guide assembly 22. When the transmission member 27 receives an external thrust, the transmission member 27 moves in the second direction, thereby pushing the rocker to rotate in the counterclockwise direction, the rotation of the rocker drives the slider to move in the first direction, and finally drives the air guide assembly 22 to move in the first direction through the slider, thereby realizing the alignment of the air guide assembly 22 with the battery injection hole.

[0102] The exhaust mechanism 2 also includes a second elastic member 24, which can be a hydraulic spring, a gas spring, or a shape memory alloy spring, and the present application does not limit this. One end of the second elastic member 24 is connected to the frame 21, and the other end is connected to the air guide assembly 22. When the hatch 3 is closed, the air guide assembly 22 moves along the second direction and compresses the second elastic member 24 under the drive of the hatch 3, the transmission member 27 and the connecting rod assembly 23. After the exhaust device 100 maintains pressure for a preset time, the hatch 3 is opened, and the external force applied by the hatch 3 to the transmission member 27 is removed and the second elastic member 24 is released. The air guide assembly 22 is separated from the injection hole under the action of the second elastic member 24, and at the same time drives the connecting rod assembly 23 and the transmission member 27 to return to the state when they are not in contact with the hatch 3. In this way, the manual recovery work of the transmission member 27 and the connecting rod assembly 23 is omitted, saving labor costs.

[0103] Please refer to Fig.13 and Fig.14 The air guide assembly 22 includes an air guide tube, which is used to align with the battery injection hole so as to guide the gas in the injection hole outward. The air guide tube 222 includes a connected tube body 2221 and an elastic suction nozzle 2222. The tube body 2221 is a hollow tube body 2221 with openings at both ends. One end of the tube body 2221 is connected to the atmosphere of the negative pressure chamber 11, and the other end is connected to the injection hole through the elastic suction nozzle 2222. When the negative pressure chamber 11 generates negative pressure, the gas in the battery will flow into the tube body 2221 through the injection hole and the elastic suction nozzle 2222 under the action of the negative pressure, and be discharged into the negative pressure chamber 11 through the tube body 2221. It can be understood that during the process of exhausting the battery, the electrolyte in the battery may also rush out of the injection hole under the action of the gas. The elastic nozzle 2222 can be elastically deformed when the air guide tube 222 is close to the battery, thereby forming a seal around the injection hole, so as to prevent the electrolyte of the battery from rushing out of the battery through the injection hole and reduce the loss of electrolyte during the battery exhaust process.

[0104] The air duct 222 is movably arranged on the frame 21. The exhaust mechanism 2 can adjust the position of the air duct 222 on the frame 21 according to the position of the injection hole in the negative pressure chamber 11, thereby adjusting the position of the air duct 222 and the injection hole. In this way, the influence of the installation error of the battery on the air duct 222 and the injection hole is reduced, and the exhaust efficiency of the exhaust mechanism 2 is improved.

[0105] Please refer to Fig.15, the air guide assembly 22 also includes a positioning seat 223, and the air guide tube 222 is arranged on the positioning seat 223. The positioning seat 223 is used to realize the positioning of the air guide tube 222 and the battery filling hole during the movement of the air guide tube 222. Specifically, in one embodiment of the present application, the battery is installed in the negative pressure chamber 11 through a battery tray. An alignment plate is provided on the battery tray. The positioning seat 223 is movably arranged on the frame 21, and the positioning seat 223 moves, driving the air guide tube 222 arranged thereon to move. During the movement of the positioning seat 223, the positioning seat 223 will contact the alignment plate 410 of the battery tray 400 and stop moving. At this time, the air guide tube 222 is also just above the filling hole 510 of the battery 500, and the air guide tube 222 and the filling hole 510 are aligned with each other.

[0106] Please refer to Fig.16 The air guide component 22 also includes a first drive component 224, which is used to drive the positioning seat 223 to move. The first drive component 224 can be a motor or a cylinder, and the present application does not limit this. In one embodiment of the present application, the first drive component 224 includes a sliding bracket 221, an air guide bracket 2241 and a push member 2242. The sliding bracket 221 is movably arranged on the frame 21 along the first direction, the air guide bracket 2241 is movably arranged on the sliding bracket 221 along the second direction, the positioning seat 223 is movably arranged on the sliding bracket 221, and the push member 2242 is arranged on the frame 21. The push member 2242 is used to contact the air guide bracket 2241 when the sliding bracket 221 moves along the first direction, and push the air guide bracket 2241 to move along the second direction.

[0107] In a specific application, when the sliding bracket 221 moves downward, the air guide bracket 2241 provided on the sliding bracket 221 will move downward together with the sliding bracket 221. During the descent of the air guide bracket 2241, one side of the air guide bracket 2241 will contact the push piece 2242. Under the push of the push piece 2242, the air guide bracket 2241 will drive the positioning seat 223 thereon to move along the second direction. During the movement along the second direction, the positioning seat 223 contacts the alignment plate 410 on the battery tray, so that the air guide tube 222 and the liquid injection hole of the battery are aligned with each other. Compared with other driving modes, this embodiment integrates the driving of the positioning seat 223 and the downward movement of the sliding bracket 221, reduces the use of electrical equipment, optimizes the spatial layout of the exhaust mechanism 2, and reduces the setting cost of the exhaust mechanism 2.

[0108] The push piece 2242 can be a square block fixed to the frame 21, or a trapezoidal block fixed to the frame 21, and the present application does not limit this. In one embodiment of the present application, the push piece 2242 is arranged in a circular shape, and the rotation is arranged on the frame 21. Compared with other structures, the circular rotation setting of the push piece 2242 can effectively reduce the friction between the push block and the air guide bracket 2241, and improve the service life of the push block and the air guide bracket 2241.

[0109] In order to improve the stability of the operation of the sliding bracket 221, in one embodiment of the present application, the exhaust mechanism 2 includes a second guide rail 230 and a second slider 240, the second guide rail 230 is movably arranged on the frame 21 along the second direction, the second slider 240 is slidably arranged on the second guide rail 230, and the sliding bracket 221 is arranged on the second slider 240 and can slide on the second guide rail 230 along with the second slider 240. The provision of the second guide rail 230 and the second slider 240 can reduce the movement resistance of the frame 21 to the sliding bracket 221 and improve the stability of the movement of the sliding bracket 221.

[0110] It can be understood that the positioning seat 223 and the alignment plate 410 can only realize the positioning of part of the air duct 222 and the battery filling hole. When the air duct 222 and the internal battery of the battery tray are arranged in multiples, there will still be an error between the air duct 222 and the battery, and the error will start from the alignment plate 410 and accumulate along the setting direction of the air duct 222 or the battery, and eventually it may cause the air duct 222 and the battery away from the alignment plate 410 to be unable to align with each other. In order to reduce the cumulative error of the air duct 222, in one embodiment of the present application, a plurality of alignment plates 410 are provided on the battery tray, and the exhaust mechanism 2 includes a plurality of positioning seats 223, and each positioning seat 223 is arranged on the sliding bracket 221 at intervals along the second direction. In this way, the setting distance of a single set of air guide tubes 222 is reduced, the distance between the air guide tubes 222 and the positioning plate is reduced, the cumulative error of the air guide tubes 222 is reduced, and the installation accuracy requirements of the air guide assembly 22 for the air guide tubes 222 are reduced, thereby reducing the production and installation costs of the air guide assembly 22.

[0111] Please refer to Fig.17In order to realize the reset of the positioning seat 223, in one embodiment of the present application, the first driving assembly 224 also includes a reset seat 2243 and a first elastic member 2244. The first elastic member 2244 can be a pneumatic spring, a hydraulic spring, or a disc spring, and the present application does not limit this. The positioning seat 223 has a reset portion 2234, one end of the first elastic member 2244 is connected to the reset seat 2243, and the other end is connected to the reset portion 2234 of the positioning seat 223. When the air guide bracket 2241 moves along the second direction under the action of the push member 2242, the positioning seat 223 moves away from the second direction and compresses the first elastic member 2244 under the push of the alignment plate 410. When the battery exhaust is completed, the positioning seat 223 is separated from the battery tray. The first elastic member 2244 is released and pushes the positioning seat 223 to restore to its original state. In this way, the manual recovery work of the positioning seat 223 is omitted, saving labor costs.

[0112] The first driving assembly 224 also includes a support column 2246, one end of which is connected to the reset seat 2243, and the other end is inserted into the positioning seat 223. The first elastic member 2244 is sleeved on the support column 2246, and the guide column is used to provide support and guidance for the movement of the first elastic member 2244, thereby improving the stability of the movement of the second spring.

[0113] The first driving assembly 224 also includes a top stopper 2245, which is movably disposed on the reset seat 2243; one end of the top stopper 2245 is used to contact the side of the positioning seat 223 away from the first elastic member 2244. The operator of the exhaust device 100 can adjust the length of the top stopper 2245 extending into the reset seat 2243 according to the different specifications of the battery tray, thereby adjusting the position of the positioning seat 223 on the reset seat 2243. In this way, the formation of the first elastic member 2244 being compressed by the positioning seat 223 is controlled within a suitable range, thereby ensuring the alignment efficiency of the air guide pipe 222 and the injection hole.

[0114] The first driving assembly 224 further includes a fifth guide rail 2247 and a fifth slider 2248. The fifth guide rail 2247 is disposed on the air guide bracket 2241 along the second direction. The fifth slider 2248 is slidably disposed on the fifth guide rail 2247. The positioning seat 223 is disposed on the fifth slider 2248 and can slide along the fifth guide rail 2247 along with the fifth slider 2248. The fifth guide rail 2247 and the fifth slider 2248 are used to provide connection and guidance for the movement of the positioning seat 223 on the air guide bracket 2241, so as to reduce the friction force of the movement of the positioning seat 223 on the air guide bracket 2241 and improve the stability of the movement of the positioning seat 223.

[0115] Please refer to Fig.18The exhaust mechanism 2 further includes a sixth guide rail 250 and a sixth slider 260. The sixth guide rail 250 is disposed on the sliding bracket 221 along the second direction. The sixth slider 260 is slidably disposed on the sixth guide rail 250. The air guide bracket 2241 is disposed on the sixth slider 260. The sixth guide rail 250 and the sixth slider 260 are used to provide connection and guidance for the arrangement of the air guide bracket 2241 on the sliding bracket 221, so as to reduce the friction force of the movement of the air guide bracket 2241 on the sliding bracket 221 and improve the movement stability of the air guide bracket 2241.

[0116] Please refer to Fig.14 After the injection tube and the injection hole are aligned, the air guide tube 222 will continue to move downward under the drive of the air guide bracket 2241 until the elastic suction nozzle 2222 of the air guide tube 222 contacts the battery shell. At the same time, a positioning groove is provided on the battery tray. During the descent of the air guide tube 222, the positioning seat 223 will also fall into the positioning groove of the battery tray. There are errors in the processing of the battery tray and the positioning seat 223. When the air guide assembly 22 is provided with multiple positioning seats 223, the matching surfaces of each positioning seat 223 and each positioning groove may not be in the same plane, which will affect the stability of the injection of the air guide tube 222.

[0117] In order to reduce the matching error between each positioning seat 223 and the positioning groove, in one embodiment of the present application, the positioning seat 223 includes a seat body 2231 and a positioning plate 2232, the air guide tube 222 is arranged on the seat body 2231, and the positioning plate 2232 is used to contact the positioning plate 2232 of the battery tray. The seat body 2231 is provided with a movable hole 2233, and the positioning plate 2232 is at least partially movably arranged in the movable hole 2233. When each positioning member contacts the positioning groove of the battery tray, each positioning member can adjust the length of itself extending out of the seat body 2231 under the push of each positioning groove, so as to compensate for the processing error between each positioning seat 223 and the positioning groove, reduce the processing requirements of the positioning seat 223 and the positioning groove, and reduce the processing cost of the air guide component 22.

[0118] Please refer to Fig.19The exhaust mechanism 2 also includes a clamping mechanism 25, which is used to clamp the battery or battery tray. The clamping mechanism 25 includes a first clamping portion 251 and a second clamping portion 252. The first clamping portion 251 and the second clamping portion 252 are spaced apart on the frame 21 along the second direction. The first clamping portion 251 and the second clamping portion 252 are surrounded to form a clamping space 254. The clamping space 254 is used to clamp the battery tray. The first clamping portion 251 and the second clamping portion 252 can move closer to or away from each other. In a specific application, before the battery tray is placed, the first clamping portion 251 or the second clamping portion 252 moves away from each other so that the battery tray can be placed in the clamping space 254. After the battery tray is placed in the clamping space 254, the first clamping portion 251 or the second clamping portion 252 moves closer to each other to abut against the battery tray, thereby achieving the clamping of the battery tray. The movement of the first clamping portion 251 and the second clamping portion 252 can change the size of the clamping space 254 and enable the exhaust mechanism 2 to clamp battery trays of various specifications, thereby improving the applicability of the exhaust mechanism 2 .

[0119] It should be noted that when the second clamping portion 252 can move closer to or away from the first clamping portion 251, the second clamping portion 252 may move while the first clamping portion 251 remains stationary, the first clamping portion 251 moves while the second clamping portion 252 remains stationary, or both the first clamping portion 251 and the second clamping portion 252 may move.

[0120] The clamping mechanism 25 also includes a second drive assembly 253, which is disposed on the frame 21, and is used to drive the second clamping portion 252 or the first clamping portion 251 to move. The second drive assembly 253 can be a motor or a cylinder, and the present application does not limit this. In one embodiment of the present application, the second drive assembly 253 includes a drive rod 2531, a first roller 2532, and a second roller 2533. To facilitate the description of the movement principle of the second drive assembly 253, it is now assumed that the second drive assembly 253 is used to drive the first clamping portion 251 to move.

[0121] In this embodiment, the driving rod 2531 is rotatably connected to the frame 21, and the driving rod 2531 has a first end and a second end. Compared with the first end, the second end is closer to the clamping space 254. The first roller 2532 is rotatably arranged at the first end. The first roller 2532 is used to drive the first end to move toward the clamping space 254 under the action of the driving force. The second roller 2533 is rotatably arranged at the second end. The second roller 2533 is used to contact the first clamping portion 251 under the drive of the second end and push the first clamping portion 251 to move. In specific practice, the battery is fixed in the negative pressure chamber 11 through the battery tray. When the conveying mechanism 300 extends from the inside of the negative pressure chamber 11 into the negative pressure chamber 11, the conveying mechanism 300 contacts the first roller 2532 and pushes the first roller 2532 to move toward the clamping space 254. The first roller 2532 moves, driving the driving rod 2531 and the second roller 2533 disposed at the other end of the driving rod 2531 to move. The second roller 2533 contacts the first clamping portion 251, thereby pushing the first clamping portion 251 to move away from the second clamping portion 252. In this embodiment, the driving rod 2531, the first roller 2532 and the second roller 2533 are disposed in the exhaust mechanism 2 to cooperate with the conveying mechanism 300 to drive the first clamping portion 251 to move and achieve the clamping of the battery tray, thereby reducing the use of electrical equipment, reducing the manufacturing cost of the exhaust mechanism 2, and improving the sealing of the negative pressure chamber 11.

[0122] The clamping mechanism 25 also includes a third elastic member 2534, which can be a pneumatic spring, a hydraulic spring, or a disc spring, and the present application does not limit this. The third elastic member 2534 extends in a third direction, and one end of the third elastic member 2534 is connected to the frame 21, and the other end is connected to the first clamping portion 251. When the first clamping portion 251 moves away from the second clamping portion 252 under the drive of the second driving assembly 253, the third elastic member 2534 is compressed under the abutment between the first clamping portion 251 and the frame 21. After the transport mechanism retreats out of the negative pressure chamber 11, the external force applied to the first roller 2532 is removed, and the third elastic member 2534 is released, thereby pushing the first clamping portion 251 to move closer to the second clamping portion 252, and then clamping the battery tray between the first clamping portion 251 and the second clamping portion 252.

[0123] Please refer to Fig. 20 and Fig.21The exhaust mechanism 2 also includes a limiting assembly 26, which is used to limit the movement of the battery tray 400 along the third direction. Specifically, the battery tray 400 is provided with a limiting groove 420. The exhaust mechanism 2 includes a push plate 261, a third roller 262 and a fourth elastic member 263. The push plate 261 is movably arranged on the frame 21 along the second direction, and the third roller 262 is rotatably arranged on the push plate 261. The third roller 262 can move around the third direction. The third roller 262 is used to be clamped in the limiting groove 420 of the battery tray 400. One end of the fourth elastic member 263 is connected to the frame 21, and the other end is connected to the push plate 261. The fourth elastic member 263 can be a pneumatic spring, a hydraulic spring, or a disc spring, and this application does not limit this. In specific practice, when the battery tray 400 slides into the clamping space 254 under the action of the transport mechanism 300, the battery tray 400 contacts the third roller 262, drives the third roller 262 and the push plate 261 to move downward, and compresses the fourth elastic member 263. When the battery tray 400 completely falls into the clamping space 254, the limiting groove 420 of the battery tray 400 and the third roller 262 are just oppositely arranged. At this time, the fourth elastic member 263 is released, and pushes the push plate 261 and the third roller 262 to move upward, and then the third roller 262 is clamped in the limiting groove 420. In this way, the movement of the battery tray 400 along the third direction is limited to prevent the battery tray 400 from sliding during the formation process, which affects the formation effect of the battery.

[0124] To ensure that the push plate 261 can move smoothly along the first direction, a guide hole is provided on the push plate 261 that penetrates along its thickness. The limit assembly 26 also includes a guide shaft 264, one end of which is connected to the frame 21, and the other end is passed through the guide hole. In this way, a guide is provided for the movement of the push plate 261, thereby improving the stability of the movement of the push plate 261.

[0125] Please refer to Fig.10 The exhaust mechanism 2 also includes a tray support assembly 28, which is disposed in the clamping space 254. The tray support assembly 28 includes a mounting rod 281 and a fourth roller 282. The mounting rod 281 is connected to the rack 21, and the fourth roller 282 is rotatably disposed on the mounting rod 281 and can move around the third direction. When the battery tray extends into the negative pressure chamber 11 along the third direction under the action of the conveying mechanism 300, the fourth roller 282 will roll under the drive of the battery tray and contact the bottom of the battery tray during the rolling process, so that the contact between the battery tray and the rack 21 is changed from sliding friction to rolling friction, thereby reducing the friction between the battery tray and the rack 21, reducing the wear of the rack 21 on the battery tray, and extending the service life of the battery tray.

[0126] The exhaust mechanism 2 further includes a fifth roller 29, which is rotatably disposed on the frame 21 and can rotate around a first direction. The fifth roller 29 is used to contact the end surface of the battery tray close to the negative pressure chamber 11 to reduce the friction between the battery tray and the frame 21, reduce the wear of the frame 21 on the battery tray, and extend the service life of the battery tray.

[0127] In one embodiment of the present application, the first roller 2532, the second roller 2533, the third roller 262, the fourth roller 282 and the fifth roller 29 all use cam followers. In this way, the vibration of the battery tray when it contacts the first roller 2532, the second roller 2533, the third roller 262, the fourth roller 282 and the fifth roller 29 is reduced, thereby improving the stability of the battery tray placed in the exhaust mechanism 2.

[0128] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0129] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An exhaust mechanism, characterized in that: The exhaust mechanism comprises a transmission member, an air guide assembly and a connecting rod assembly, wherein the transmission member and the air guide assembly are movably arranged, and the connecting rod assembly is connected between the transmission member and the air guide assembly; The transmission member is used to move under the push of an external driving force; the connecting rod assembly is used to transmit the power of the transmission member to the gas guide assembly, and push the gas guide assembly to a relative position with the injection hole of the battery to guide the gas of the battery.

2. The exhaust mechanism according to claim 1, characterized in that: The air guide assembly comprises an air guide pipe and a positioning seat, wherein the air guide pipe is arranged on the positioning seat; The positioning seat is used to drive the air guide tube to be positioned relative to the liquid injection hole of the battery.

3. The exhaust mechanism according to claim 2, characterized in that: The air guide assembly further includes a first drive assembly, and the first drive assembly is used to drive the positioning seat to move; the first drive assembly includes: A sliding bracket, the sliding bracket is movably arranged along a first direction, and the sliding bracket is connected to the connecting rod assembly; An air guide bracket, the air guide bracket is movably arranged on the sliding bracket along the second direction, and the positioning seat is movably arranged on the air guide bracket; A push member, wherein the push member is used to contact the air guide bracket when the sliding bracket moves along the first direction, and push the air guide bracket to move along the second direction.

4. The exhaust mechanism according to claim 3, characterized in that: The first drive assembly also includes: A reset seat, the reset seat being arranged on the air guide bracket; A first elastic member, one end of which is connected to the reset seat, and the other end of which is connected to the positioning seat.

5. The exhaust mechanism according to claim 4, characterized in that: The first driving assembly further comprises a top stopper, which is movably disposed on the reset seat; one end of the top stopper is used to contact a side of the positioning seat away from the first elastic member.

6. The exhaust mechanism according to claim 2, characterized in that: The positioning seat comprises a seat body and a positioning plate, the air guide tube is arranged on the seat body, and the positioning plate is used to contact with the positioning plate of the battery tray; The seat body is provided with a movable hole, and the positioning plate is at least partially movably disposed in the movable hole.

7. The exhaust mechanism according to claim 3, characterized in that: The exhaust mechanism includes a plurality of positioning seats, and each of the positioning seats is arranged on the sliding bracket at intervals along the second direction.

8. The exhaust mechanism according to any one of claims 1 to 7, characterized in that: The connecting rod assembly includes a first connecting rod and a second connecting rod, the first connecting rod is connected to the transmission member, and the second connecting rod is connected to the first connecting rod and the air guide assembly.

9. The exhaust mechanism according to claim 8, characterized in that: The first connecting rod is movably arranged along a third direction, and the second connecting rod is movably arranged along the first direction. The third direction and the first direction are two intersecting directions.

10. The exhaust mechanism according to claim 8, characterized in that: The connecting rod assembly also includes a third connecting rod, one end of which is rotatably connected to the first connecting rod, and the other end of which is rotatably connected to the second connecting rod.

11. The exhaust mechanism according to claim 8, characterized in that: The transmission member and the first connecting rod are constructed as an integral part.

12. The exhaust mechanism according to claim 8, characterized in that: The first connecting rod is provided with a threaded cavity, the transmission member is threadedly connected in the threaded cavity, and the position of the transmission member in the threaded cavity is adjustable.

13. An exhaust device, characterized in that: include: An equipment rack, wherein the equipment rack forms a negative pressure chamber with an opening on one side; A hatch, the hatch being movably mounted on the equipment rack and used to cover the opening; as well as The exhaust mechanism as described in any one of claims 1 to 12, wherein the exhaust mechanism is arranged in the negative pressure chamber, and the transmission member of the exhaust mechanism can move under the push of the cabin door.

14. The exhaust device according to claim 13, characterized in that The exhaust device further comprises a sealing ring, which is arranged on a side of the equipment frame facing the hatch and surrounds the opening; The hatch is covered on the opening along the thickness direction of the sealing ring.

15. A battery production line, characterized in that: Comprising an exhaust device as described in any one of claims 13 or 14.

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