Valve opening apparatus, transfer carrier, baking device, and battery production line

Abstract

The present disclosure relates to the technical field of batteries. Disclosed are a valve opening apparatus, a transfer carrier, a baking device, and a battery production line. A valve opener is movably mounted on a supporting beam, wherein a direction in which the valve opener moves relative to the supporting beam is a preset direction. An elastic member is mounted between the supporting beam and the valve opener in the preset direction. The supporting beam is mounted between clamping assemblies, wherein the clamping assemblies are configured to clamp the supporting beam, so that the supporting beam moves toward the valve opener in the preset direction.

Description

A valve opening device, a transfer carrier, a baking equipment, and a battery production line.

[0001] Cross-reference to related applications

[0002] This disclosure is based on and claims priority to Chinese Patent Application No. 202422737350.8, filed on November 8, 2024, entitled "A Valve Opening Device, Transfer Carrier, Baking Equipment and Battery Production Line", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to the field of battery technology, and in particular to a valve opening device, a transfer carrier, a baking equipment, and a battery production line. Background Technology

[0004] Batteries are increasingly used in daily life and industry. For example, new energy vehicles equipped with batteries are widely used, and batteries are also increasingly being applied in energy storage. However, in related technologies, it is difficult to keep the one-way valve on the battery cell's casing open to bake the inside of the casing. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this disclosure provides a valve opening device, a transfer carrier, a baking equipment, and a battery production line, which can keep the one-way valve on the casing of the battery cell in an open state for baking the casing.

[0006] This disclosure is achieved through the following technical solution.

[0007] A first aspect of this disclosure provides a valve opening device, comprising:

[0008] Support beam;

[0009] The valve opener is movably mounted on the support beam, and the valve opener moves relative to the support beam in a preset direction.

[0010] An elastic element is installed between the support beam and the valve opener in a preset direction;

[0011] The clamping assembly has a support beam mounted on it. The clamping assembly is used to clamp the support beam so that the support beam moves toward the valve opener in a preset direction.

[0012] In this embodiment of the disclosure,

[0013] In one embodiment, the clamping assembly includes:

[0014] The limiting base is located on the side of the support beam facing the valve opener;

[0015] A clamping device is connected to a limiting base. The clamping device has a clamping part, and a support beam is located at least partially between the clamping part and the limiting base. The clamping part and the limiting base are used to clamp the support beam so that the support beam moves toward the valve opener in a preset direction.

[0016] In this embodiment of the disclosure,

[0017] In one embodiment, the clamping assembly further includes a guide post, to which a support beam is movably mounted.

[0018] In this embodiment of the disclosure,

[0019] In one embodiment, a limiting base is disposed on a guide post so that the guide post supports the limiting base.

[0020] In this embodiment of the disclosure,

[0021] In one embodiment, the limiting base is movably mounted on the guide post, and the clamping assembly further includes a first locking device mounted on the limiting base, the first locking device being used to lock or unlock the limiting base and the guide post.

[0022] In this embodiment of the disclosure,

[0023] In one embodiment, the limiting base has a first mounting hole, a first buffer groove and a first connecting part, a guide post passes through the first mounting hole, the first buffer groove communicates with the first mounting hole, the first buffer groove passes through the hole wall of the first mounting hole on one side along the radial direction of the first mounting hole, and the first connecting parts are provided on opposite sides of the first buffer groove, and the first locking device is used to make the first connecting parts on both sides move closer or further apart.

[0024] In this embodiment of the disclosure,

[0025] In one embodiment, the valve opening device further includes a second locking device installed on the support beam, the second locking device being used to lock or unlock the support beam and the guide post.

[0026] In this embodiment of the disclosure,

[0027] In one embodiment, the support beam has a second mounting hole, a second buffer groove, and a second connecting portion. The guide post passes through the second mounting hole, the second buffer groove communicates with the second mounting hole, and the second buffer groove penetrates the hole wall of the second mounting hole on one side along the radial direction of the second mounting hole. Second connecting portions are provided on opposite sides of the second buffer groove, and a second locking device is used to move the two second connecting portions closer or further apart.

[0028] In this embodiment of the disclosure,

[0029] In one embodiment, the clamping assembly further includes a base, a guide post connected to the base, and a third mounting hole formed on the base at a distance from the guide post.

[0030] In this embodiment of the disclosure,

[0031] In one embodiment, the support beam includes:

[0032] The valve opener is movably mounted on the beam.

[0033] A beam cover is installed on the beam body, an elastic element is installed between the valve opener and the beam cover, and a clamping assembly is used to clamp the beam body and / or the beam cover so that the support beam moves toward the valve opener in a preset direction.

[0034] In this embodiment of the disclosure,

[0035] In one embodiment, the beam has a receiving cavity and a limiting ring. The limiting ring is located on the side of the receiving cavity away from the beam cover. A limiting flange is formed at the end of the valve opener facing the beam cover and located in the receiving cavity. The valve opener passes through the limiting ring, and the limiting flange is used to abut against the limiting ring to prevent the limiting flange from leaving the receiving cavity.

[0036] In this embodiment of the disclosure,

[0037] A second aspect of this disclosure provides a transfer vehicle, comprising:

[0038] The supporting structure is used to house the individual battery cells;

[0039] The valve opening device described above is installed on the support body for opening the valve of the battery cell on the support body.

[0040] In one embodiment, the transport vehicle further includes a positioning spacer installed on the carrier body, the positioning spacer being used to position the battery cells on the carrier body.

[0041] In this embodiment of the disclosure,

[0042] A third aspect of this disclosure provides a baking apparatus, comprising:

[0043] Any of the above-mentioned transfer vehicles;

[0044] The main body of the equipment is used to bake the individual battery cells on the transfer carrier, which is used to move the battery cells into or out of the main body of the equipment.

[0045] A fourth aspect of this disclosure provides a battery production line, comprising:

[0046] Baking equipment of any of the above types;

[0047] A conveying device used to move individual battery cells into or out of a transport vehicle.

[0048] Invention Effects

[0049] In this embodiment, since the valve opener can move relative to the support beam, the support beam is clamped by the clamping assembly, causing the support beam to move towards the valve opener in a preset direction. The support beam and the valve opener approach each other, compressing the elastic element. The elastic element applies an elastic force to the valve opener, allowing the valve opener to continuously apply pressure to the one-way valve on the battery cell's casing, keeping the one-way valve of the battery cell continuously open so that the baking equipment can dry the inside of the casing. After the battery cell is baked, the clamping assembly releases the support beam, reducing the elastic force of the elastic element. This reduces the force exerted by the valve opener on the one-way valve, causing the one-way valve to close against the force of the valve opener. Attached Figure Description

[0050] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this disclosure. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0051] Figure 1 is a schematic diagram of the structure of the transport vehicle and the battery cells placed on the transport vehicle according to an embodiment of the present disclosure;

[0052] Figure 2 is a schematic diagram of the structure of the transfer vehicle according to an embodiment of this disclosure;

[0053] Figure 3 is a top view of the transport vehicle and the battery cells placed on the transport vehicle according to an embodiment of the present disclosure;

[0054] Figure 4 is a cross-sectional view at position AA in Figure 3;

[0055] Figure 5 is an enlarged view of position B in Figure 4;

[0056] Figure 6 is a schematic diagram of the valve opening device according to the application embodiment;

[0057] Figure 7 is an enlarged view of position C in Figure 6;

[0058] Figure 8 is a schematic diagram of the limiting base of the application embodiment.

[0059] Explanation of reference numerals in the attached drawings: 1. Support beam; 11. Second mounting hole; 12. Second buffer groove; 13. Second connecting part; 14. Beam body; 141. Receiving cavity; 142. Limiting ring; 15. Beam cover; 2. Valve opener; 21. Limiting flange; 3. Elastic element; 4. Clamping assembly; 41. Limiting base; 411. First mounting hole; 412. First buffer groove; 413. First connecting part; 42. Clamper; 421. Clamping part; 43. Guide post; 44. First locking device; 45. Base; 451. Third mounting hole; 5. Second locking device; 100. Transfer carrier; 101. Bearing body; 102. Valve opening device; 103. Positioning spacer; 200. Battery cell; 201. One-way valve. Detailed Implementation

[0060] The embodiments of the technical solutions disclosed herein will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solutions disclosed herein and are therefore intended to limit the scope of protection of this disclosure.

[0061] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this disclosure; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0062] In the description of the embodiments of this disclosure, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary or secondary relationship of the indicated technical features. In the description of the embodiments of this disclosure, "a plurality of" means two or more, unless otherwise explicitly defined.

[0063] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0064] In the description of the embodiments of this disclosure, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0065] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.

[0066] In the description of the embodiments of this disclosure, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0067] In related technologies, the electrode assembly of a battery cell is located inside the casing. Electrolyte needs to be injected into the casing through an injection port. The valve at the injection port is a one-way valve, through which electrolyte is injected into the casing. Before injecting electrolyte into the casing, the one-way valve at the injection port needs to be opened to bake the inside of the casing, drying it as much as possible. After drying, the one-way valve closes to keep the inside of the casing as dry as possible for subsequent electrolyte injection. The one-way valve can be pressed open from the outside to the inside of the casing to connect the inside and outside of the casing. After the external force is removed, the one-way valve closes. Related technologies do not have a device for continuously applying pressure from the outside to the inside of the casing to keep the one-way valve on the casing open.

[0068] In this embodiment, the clamping assembly clamps the support beam, causing the support beam to move toward the valve opener in a preset direction. The support beam applies a force to the valve opener through an elastic element, enabling the valve opener to continuously apply pressure to the one-way valve from the outside of the housing to the inside of the housing, thereby keeping the one-way valve on the housing of the battery cell open.

[0069] The solutions disclosed herein can be used not only for opening the one-way valve of a battery cell, but also for other valve opening structures that open by applying external pressure.

[0070] In this embodiment of the disclosure, the battery cell can be a secondary battery, which refers to a battery cell that can be recharged to activate the active materials and continue to be used after the battery cell has been discharged.

[0071] The battery cell can be a lithium-ion battery, sodium-ion battery, sodium-lithium-ion battery, lithium metal battery, sodium metal battery, lithium-sulfur battery, magnesium-ion battery, nickel-metal hydride battery, nickel-cadmium battery, lead-acid battery, etc., and the embodiments disclosed herein are not limited to this.

[0072] A single battery cell typically includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator, with the separator positioned between the positive and negative electrodes. During the charging and discharging process of a single battery cell, active ions (such as lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, positioned between the positive and negative electrodes, prevents short circuits while allowing active ions to pass through.

[0073] In some embodiments, the positive electrode may be a positive electrode sheet, which may include a positive electrode current collector and a positive electrode active material disposed on at least one surface of the positive electrode current collector.

[0074] As an example, the positive current collector has two surfaces opposite each other in its own thickness direction, and the positive active material is disposed on either or both of the two opposite surfaces of the positive current collector.

[0075] As an example, the positive current collector can be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as a metal foil, pure metals, alloys, or surface-treated metals can be used, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver. The composite current collector may include a polymer material base layer and a metal layer. The composite current collector can be formed by forming a metal material (aluminum, aluminum alloys, nickel, nickel alloys, titanium, titanium alloys, silver, and silver alloys, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0076] As an example, the positive electrode active material may include at least one of the following materials: lithium phosphate, lithium transition metal oxide, and their respective modified compounds. However, this disclosure is not limited to these materials, and other conventional materials that can be used as battery positive electrode active materials may also be used. These positive electrode active materials may be used alone or in combination of two or more. Examples of lithium phosphate include, but are not limited to, at least one of lithium iron phosphate (such as LiFePO4 (also referred to as LFP)), lithium iron phosphate and carbon composites, lithium manganese phosphate (such as LiMnPO4), lithium manganese phosphate and carbon composites, lithium iron manganese phosphate, and lithium iron manganese phosphate and carbon composites. Examples of lithium transition metal oxides include, but are not limited to, lithium cobalt oxide (such as LiCoO2), lithium nickel oxide (such as LiNiO2), lithium manganese oxide (such as LiMnO2, LiMn2O4), lithium nickel cobalt oxide, lithium manganese cobalt oxide, lithium nickel manganese oxide, and lithium nickel cobalt manganese oxide (such as LiNi). 1 / 3 Co 1 / 3 Mn 1 / 3 O2 (also known as NCM) 333 LiNi 0.5 Co 0.2Mn 0.3 O2 (also known as NCM) 523 LiNi 0.5 Co 0.25 Mn 0.25 O2 (also known as NCM) 211 LiNi 0.6 Co 0.2 Mn 0.2 O2 (also known as NCM) 622 LiNi 0.8 Co 0.1 Mn 0.1 O2 (also known as NCM) 811 ), lithium nickel cobalt aluminum oxide (such as LiNi) 0.8 Co 0.15 Al 0.05 At least one of O2 and its modified compounds. Modified compounds refer to substances obtained by modification methods such as doping or coating based on the above-mentioned substances.

[0077] In some embodiments, the positive electrode can be a foamed metal. The foamed metal can be foamed nickel, foamed copper, foamed aluminum, foamed alloy, or foamed carbon, etc. When foamed metal is used as the positive electrode, the surface of the foamed metal may or may not contain a positive electrode active material. As an example, a positive electrode active material is filled and / or deposited within the foamed metal.

[0078] In some embodiments, the negative electrode may be a negative electrode sheet, and the negative electrode sheet may include a negative electrode current collector.

[0079] As an example, the negative electrode current collector can be a metal foil, a conductive polymer material, a carbon material, or a composite current collector. For example, as a metal foil, pure metals, alloys, or surface-treated metals can be used, including but not limited to stainless steel, copper, aluminum, nickel, titanium, or silver. The composite current collector may include a polymer material substrate and a metal layer. The composite current collector can be formed by forming a metal material (copper, copper alloys, nickel, nickel alloys, titanium, titanium alloys, silver, and silver alloys, etc.) on a polymer material substrate (such as a substrate of polypropylene, polyethylene terephthalate, polybutylene terephthalate, polystyrene, polyethylene, etc.).

[0080] As an example, the negative electrode sheet may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0081] As an example, the negative electrode current collector has two surfaces opposite each other in its own thickness direction, and the negative electrode active material is disposed on either or both of the two opposite surfaces of the negative electrode current collector.

[0082] As an example, the negative electrode active material may be a negative electrode active material known in the art for use in battery cells. As an example, the negative electrode active material may include at least one of the following materials: artificial graphite, natural graphite, soft carbon, hard carbon, silicon-based materials, tin-based materials, and lithium titanate, etc. Silicon-based materials may be selected from at least one of elemental silicon, silicon oxide compounds, silicon-carbon composites, silicon-nitrogen composites, and silicon alloys. Tin-based materials may be selected from at least one of elemental tin, tin oxide compounds, and tin alloys. However, this disclosure is not limited to these materials, and other conventional materials that can be used as negative electrode active materials for battery cells may also be used. These negative electrode active materials may be used alone or in combination of two or more.

[0083] In some embodiments, the negative electrode can be a foamed metal. The foamed metal can be foamed nickel, foamed copper, foamed aluminum, foamed alloy, or foamed carbon, etc. When foamed metal is used as the negative electrode sheet, the surface of the foamed metal may or may not have a negative electrode active material.

[0084] As an example, negative electrode active materials can be filled or / and deposited within the negative electrode current collector.

[0085] In some embodiments, the positive current collector can be made of aluminum, and the negative current collector can be made of copper.

[0086] In some embodiments, the electrode assembly further includes an isolator disposed between the positive and negative electrodes.

[0087] In some embodiments, the separator is a separator membrane. This disclosure does not impose any particular limitation on the type of separator membrane; any known porous separator membrane with good chemical and mechanical stability can be selected.

[0088] As an example, the main material of the separator can be selected from at least one of glass fiber, non-woven fabric, polyethylene, polypropylene, polyvinylidene fluoride, and ceramic. The separator can be a single-layer film or a multi-layer composite film, without particular limitation. When the separator is a multi-layer composite film, the materials of each layer can be the same or different, without particular limitation. The separator can be a single component located between the positive and negative electrodes, or it can be attached to the surfaces of the positive and negative electrodes. An inorganic particle coating, an organic particle coating, or an organic / inorganic composite coating can also be applied to the surface of the separator.

[0089] In some embodiments, the separator is a solid electrolyte. The solid electrolyte is disposed between the positive and negative electrodes, serving both to transport ions and to isolate the positive and negative electrodes.

[0090] In some embodiments, the battery cell also includes an electrolyte, which acts as a conductor of ions between the positive and negative electrodes. This disclosure does not impose specific limitations on the type of electrolyte; it can be selected according to requirements. The electrolyte can be liquid, gel, or solid.

[0091] Liquid electrolytes include electrolyte salts and solvents.

[0092] In some embodiments, the electrolyte salt may be selected from at least one of lithium hexafluorophosphate, lithium tetrafluoroborate, lithium perchlorate, lithium hexafluoroarsenate, lithium bis(fluorosulfonyl)imide, lithium bis(trifluoromethanesulfonyl)imide, lithium trifluoromethanesulfonate, lithium difluorophosphate, lithium difluorooxalate borate, lithium dioxalate borate, lithium difluorodioxalate phosphate, and lithium tetrafluorooxalate phosphate.

[0093] In some embodiments, the solvent may be selected from at least one of ethylene carbonate, propylene carbonate, methyl ethyl carbonate, diethyl carbonate, dimethyl carbonate, dipropyl carbonate, methyl propyl carbonate, ethyl propyl carbonate, butyl carbonate, fluoroethylene carbonate, methyl formate, methyl acetate, ethyl acetate, propyl acetate, methyl propionate, ethyl propionate, propyl propionate, methyl butyrate, ethyl butyrate, 1,4-butyrolactone, sulfolane, dimethyl sulfone, methyl ethyl sulfone, and diethyl sulfone. The solvent may also be an ether solvent. Ether solvents may include one or more of ethylene glycol dimethyl ether, ethylene glycol diethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 1,3-dioxolane, tetrahydrofuran, methyl tetrahydrofuran, diphenyl ether, and crown ethers.

[0094] In some embodiments, lipid electrolytes are also called ester electrolytes, mainly including two categories: carboxylic acid esters and carbonates. Common ester solvents include ethylene carbonate (EC) and propylene carbonate (PC). To improve electrolyte performance, researchers have developed various ester solvents, such as propyl acetate (PA) and methyl acetate (MA). These solvents have lower melting points and viscosities, which helps to improve the low-temperature conductivity of the electrolyte. However, these electrolytes are difficult to withstand high voltages; when the potential difference is greater than approximately 5V, the solvent may decompose.

[0095] In some embodiments, ether electrolytes in lithium batteries are mainly classified into two types: linear ethers and cyclic ethers. Linear ether solvents include 1,2-dimethoxypropane (DMP), dimethoxymethane (DMM), and dimethyl glycol ether (DME), while cyclic ether solvents include tetrahydrofuran (THF) and 2-methyltetrahydrofuran (2-Me-THF). Dimethyl glycol ether (DME) can form stable chelates with lithium salts, exhibiting strong dissolving power for lithium salts and thus improving the electrolyte's conductivity. However, this type of electrolyte is difficult to withstand high voltages; when the potential difference exceeds approximately 5V, the solvent may decompose.

[0096] In some embodiments, the electrolyte may optionally include additives. For example, additives may include negative electrode film-forming additives, positive electrode film-forming additives, and additives that can improve certain properties of the battery cell, such as additives that improve the overcharge / fast charge performance of the battery cell, additives that improve the high-temperature performance of the battery cell, and additives that improve the low-temperature performance of the battery cell.

[0097] The gel electrolyte includes a polymer as a backbone network and can be used in conjunction with an ionic liquid-lithium salt.

[0098] Solid electrolytes include polymer solid electrolytes, inorganic solid electrolytes, and composite solid electrolytes.

[0099] As an example, the polymers of polymeric solid electrolytes may include polyethers (polyoxyethylene), polysiloxanes, polycarbonates, polyacrylonitrile, polyvinylidene fluoride, polymethyl methacrylate, monoionic polymers, polyionic liquids, cellulose, etc.

[0100] As an example, inorganic solid electrolytes can be one or more of the following: oxide solid electrolytes (crystalline perovskite, sodium superconducting ion conductor, garnet, amorphous LiPON thin film), sulfide solid electrolytes (crystalline lithium superconducting ion conductor (lithium-germanium-phosphorus-sulfur, sulfosilium-germanium), amorphous sulfides), halide solid electrolytes, nitride solid electrolytes, and hydride solid electrolytes.

[0101] As an example, composite solid electrolytes are formed by adding inorganic solid electrolyte fillers to polymer solid electrolytes.

[0102] In some embodiments, the battery cell may include a casing. The casing may be a steel casing, an aluminum casing, a plastic casing (such as a polypropylene casing), a composite metal casing (such as a copper-aluminum composite casing), or an aluminum-plastic film, etc. In some embodiments, the casing may be a sealed structure or a non-sealed structure. As an example, when the casing is a non-sealed structure, the casing serves to protect the electrode assembly, and a sealing bag is included between the casing and the electrode assembly to encapsulate the electrode assembly and electrolyte. Specifically, the sealing bag may be a bag-shaped insulating component or an aluminum-plastic film. When the casing is a sealed structure, it is used to encapsulate components such as the electrode assembly and electrolyte.

[0103] In some embodiments, at least one electrode terminal is provided on the housing, and the electrode terminal is electrically connected to the tab. The electrode terminal can be directly connected to the tab, or it can be indirectly connected to the tab through a current collector. The electrode terminal can be provided on the end cap or on the housing.

[0104] In some embodiments, the casing is provided with a liquid injection hole, and the battery cell also includes a one-way valve installed at the liquid injection hole.

[0105] This disclosure provides a battery production line, which includes a conveying device and a baking device. The conveying device is used to convey battery cells 200, and the baking device is used to bake the battery cells 200.

[0106] The baking apparatus disclosed herein includes an apparatus body and a transfer carrier 100. The apparatus body is used to bake the battery cells 200 on the transfer carrier 100, and the transfer carrier 100 is used to move the battery cells into or out of the apparatus body.

[0107] The main body of the equipment acts as a heat source for baking, dissipating heat to bake the battery cells 200.

[0108] For example, the conveying device is used to move the battery cell 200 into or out of the transfer carrier 100.

[0109] For example, the number of transfer carriers 100 for each baking device can be at least two.

[0110] For example, each transfer vehicle 100 can be moved into or out of the main body of the equipment independently.

[0111] For example, at least two transfer vehicles 100 are stacked sequentially in the vertical direction.

[0112] For example, the baking equipment can be a baking oven.

[0113] The transfer carrier 100 of this embodiment of the present disclosure, as shown in Figures 1 to 5, includes a carrier body 101 and a valve opening device 102. The carrier body 101 is used to accommodate battery cells 200, and the valve opening device 102 is installed on the carrier body 101 to open the valves on the battery cells 200 on the carrier body 101.

[0114] For example, the number of valve opening devices 102 can be one or at least two.

[0115] For example, the conveying device is used to move the battery cell 200 into or out of the carrier body 101.

[0116] For example, the conveying device moves the battery cell 200 into the carrier body 101, and opens the one-way valve 201 on the battery cell 200 moved into the carrier body 101 by the valve opening device 102 installed on the carrier body 101 and keeps it in the open state as much as possible.

[0117] For example, after the battery cell 200 placed on the carrier body 101 opens the one-way valve 201 through the valve opening device 102 and keeps it in the open state, the entire transfer carrier 100 carrying the battery cell 200 is moved into the equipment body for baking.

[0118] For example, after baking is complete, the transfer carrier 100 is removed from the main body of the equipment.

[0119] For example, the baked battery cell 200 is removed from the carrier body 101 by a conveying device and enters the next process.

[0120] In some embodiments, please refer to FIG2, the transport vehicle 100 includes a positioning spacer 103 installed on the carrier body 101, the positioning spacer 103 being used to position the battery cell 200 on the carrier body 101.

[0121] The positioning spacer 103 is long and narrow, and is mainly used to position the battery cell 200.

[0122] For example, please refer to Figures 1 to 3. The supporting body 101 has multiple rows of battery cells 200. Each row of battery cells 200 contains multiple battery cells 200. The length direction of the positioning spacer 103 is arranged along the arrangement direction of at least two battery cells 200 in each row of battery cells 200. The positioning spacer 103 is provided between two adjacent rows of battery cells 200.

[0123] The valve opening device 102 of this embodiment, as shown in Figures 3-7, includes a support beam 1, a valve opener 2, an elastic element 3, and a clamping assembly 4. The valve opener 2 is movably mounted on the support beam 1, and the direction of movement of the valve opener 2 relative to the support beam 1 is a preset direction. The elastic element 3 is installed between the support beam 1 and the valve opener 2 along the preset direction. The clamping assembly 4 is used to clamp the support beam 1 so that the support beam 1 moves toward the valve opener 2 along the preset direction.

[0124] The support beam 1 serves as a support structure for the valve opener 2. It is mainly used to apply force to the valve opener 2 through the elastic element 3, thereby enabling the valve opener 2 to press open the one-way valve 201 of the battery cell 200.

[0125] The valve opener 2 is used to apply pressure to the one-way valve 201 of the battery cell 200 to open the one-way valve 201.

[0126] The elastic element 3 applies an elastic force to the valve opener 2.

[0127] For example, the elastic element 3 can be a spring.

[0128] Clamping assembly 4 is a structure for clamping the clamping beam.

[0129] For example, referring to Figure 4, the battery cell 200 is located on the support body 101. The support beam 1, the valve opener 2, and the elastic member 3 are all located above the battery cell 200. The valve opener 2 is in contact with the one-way valve 201 of the battery cell 200. The clamping assembly 4 clamps the support beam 1, so that the support beam 1 moves toward the valve opener 2 in a preset direction so that the elastic member 3 presses the valve opener 2 against the one-way valve 201 of the battery cell 200, thereby pressing the one-way valve 201 open and keeping it in the open state.

[0130] For example, after the battery cell 200 is baked, the transfer carrier 100 is removed from the main body of the equipment, causing the clamping assembly 4 to release the support beam 1. The support beam 1 and the valve opener 2 move away from each other under the action of the elastic member 3. The force of the elastic member 3 on the valve opener 2 is reduced, and the force of the valve opener 2 on the one-way valve 201 of the battery cell 200 is reduced accordingly. The one-way valve 201 closes against the force of the valve opener 2, so as to keep the inside of the battery cell 200 in a dry state as much as possible.

[0131] For example, the conveying device removes the battery cell 200 with the one-way valve 201 closed from the carrier body 101.

[0132] The valve opener 2 is the main structure for opening the one-way valve 201. The valve opener 2 only needs to apply pressure to the one-way valve 201 to open it.

[0133] For example, valve opener 2 is a pressure block.

[0134] For example, the valve opener 2 has a vent groove at the end opposite to the support beam 1 to prevent the valve opener 2 from closing the opening of the one-way valve 201.

[0135] For example, the number of valve openers 2 can be one, or the number of valve openers 2 can be at least two.

[0136] For example, the clamping component 4 may be located at one end of the support beam 1.

[0137] For example, clamping components 4 can be provided at both ends of the support beam 1, and the clamping components 4 at both ends clamp the corresponding ends of the support beam 1 respectively.

[0138] For example, the length direction of the support beam 1 is arranged along the length direction of the positioning spacer 103.

[0139] For example, the two-end clamping components 4 are arranged along the length direction of the positioning spacer 103.

[0140] For example, please refer to Figure 4, where the direction indicated by arrow R1 is the preset direction.

[0141] For example, the preset direction is arranged along the vertical direction.

[0142] For example, please refer to Figures 1 to 3 and Figure 6, where the direction indicated by arrow R2 is the length direction of the support beam.

[0143] In this embodiment, since the valve opener 2 can move relative to the support beam 1, the support beam 1 is clamped by the clamping assembly 4, causing the support beam 1 to move towards the valve opener 2 in a preset direction. The support beam 1 and the valve opener 2 approach each other, compressing the elastic element 3. The elastic element 3 applies an elastic force to the valve opener 2, allowing the valve opener 2 to continuously apply pressure to the one-way valve 201 on the casing of the battery cell 200, keeping the one-way valve 201 of the battery cell 200 continuously open so that the baking equipment can dry the inside of the casing. After the battery cell 200 is baked, the clamping assembly 4 releases the support beam 1, reducing the elastic force of the elastic element 3. This reduces the force exerted by the valve opener 2 on the one-way valve 201, causing the one-way valve 201 to close against the force of the valve opener 2.

[0144] In some embodiments, referring to FIG7, the clamping assembly 4 includes a limiting base 41 and a clamp 42. The limiting base 41 is located on the side of the support beam 1 facing the valve opener 2. The clamp 42 is connected to the limiting base 41 and has a clamping portion 421. The support beam 1 is at least partially located between the clamping portion 421 and the limiting base 41. The clamping portion 421 and the limiting base 41 are used to clamp the support beam 1 so that the support beam 1 moves toward the valve opener 2 in a predetermined direction.

[0145] The limiting base 41 is located on the side of the support beam 1 facing the valve opener 2. The limiting base 41 limits the position of the support beam 1 facing the valve opener 2 in a preset direction, thus preventing the support beam 1 from getting too close to the valve opener 2 in the preset direction.

[0146] The support beam 1 is located at least partially between the clamping part 421 and the limiting base 41, and the limiting base 41 limits the support beam 1.

[0147] The clamp 42 is the main structure for clamping the support beam 1. The clamp 42 works in conjunction with the limiting base 41 to clamp the support beam 1.

[0148] For example, the limiting base 41 has a block structure.

[0149] For example, please refer to Figure 7, the gripper 42 is a quick clamp based on a linkage mechanism.

[0150] For example, the clamp 42 includes a clamping body and a torsion spring, which is respectively installed on the limiting base 41 and the clamping body. The torsion spring applies a force to the clamping body to clamp the support beam 1 between the clamping body and the limiting base 41.

[0151] In this embodiment, the limiting base 41 is located on the side of the support beam 1 facing the valve opener 2, limiting the support beam 1 from getting too close to the valve opener 2 in a preset direction. This prevents the support beam 1 from getting too close to the valve opener 2, thus suppressing excessive elastic force of the elastic element 3. This helps to suppress the force exerted by the valve opener 2 on the one-way valve 201 of the battery cell 200, thereby reducing the possibility of damage to the battery cell 200. The clamp 42 is mounted on the limiting base 41, and the support beam 1 is clamped by the cooperation of the clamping part 421 of the clamp 42 and the limiting base 41.

[0152] It is understood that the specific structure of the clamping component 4 is not limited. For example, the clamping component 4 may not have a limiting base 41 and may clamp the support beam 1 by means of the clamp 42.

[0153] In some embodiments, as shown in Figures 1, 4, 6 and 7, the clamping assembly 4 further includes a guide post 43, on which the support beam 1 is movably mounted.

[0154] For example, the guide post 43 is cylindrical in shape.

[0155] For example, the side of the guide post 43 is a cylindrical surface.

[0156] For example, the cross-sectional shape of the guide post 43 is not limited, and the cross-sectional shape of the guide post 43 can be square or other forms of polygons.

[0157] For example, the support beam 1 can be removed from the guide post 43.

[0158] For example, the guide post 43 is located at one end of the support beam 1.

[0159] For example, guide posts 43 are provided at both ends of the support beam 1.

[0160] For example, the preset direction is arranged along the axial direction of the guide post 43.

[0161] In this embodiment, the support beam 1 is movably mounted on the guide post 43. The guide post 43 guides the movement of the support beam 1, reducing the possibility that the support beam 1 may gradually move away from the clamping assembly 4 during the clamping or releasing process, thus facilitating better clamping of the support beam 1 by the clamping assembly 4. The movable mounting of the support beam 1 on the guide post 43 allows for easy replacement of the support beam 1, valve opener 2, and elastic element 3 as a single unit, facilitating rapid replacement and maintenance of the valve opening device 102.

[0162] It is understood that the specific structure of the clamping assembly 4 is not limited. For example, the clamping assembly 4 may not have a guide post 43, and the support beam 1 may be placed on the clamping assembly 4.

[0163] In some embodiments, please refer to FIG7, the limiting base 41 is disposed on the guide post 43 so that the guide post 43 supports the limiting base 41.

[0164] The guide post 43 supports the limiting base 41, and the limiting base 41 can move together with the guide post 43 under appropriate circumstances.

[0165] In this embodiment, the limiting base 41 disposed on the guide post 43 and the support beam 1 installed on the guide post 43 can both move together with the guide post 43. Even after the guide post 43 moves to a new position, the limiting base 41 can still effectively limit the support beam 1 installed on the guide post 43.

[0166] It is understood that the installation method of the limiting base 41 is not limited. For example, the limiting base 41 can be installed on the supporting body 101 as appropriate.

[0167] In some embodiments, please refer to FIG7, the limiting base 41 is movably mounted on the guide post 43, and the clamping assembly 4 further includes a first locking device 44 mounted on the limiting base 41, the first locking device 44 being used to lock or unlock the limiting base 41 and the guide post 43.

[0168] The limiting base 41 is movably mounted on the guide post 43, and the limiting base 41 can move along the axial direction of the guide post 43.

[0169] For example, the first locking device 44 may be a set screw or a locking bolt.

[0170] In this embodiment, by moving the limiting base 41 relative to the guide post 43, the position of the limiting base 41 on the guide post 43 can be adjusted, thereby adjusting the position of the support beam 1 clamped by the clamping assembly 4. This allows for better adaptation to the height of the one-way valve 201 of different battery cell 200 models. For different battery cell models 200, the one-way valve 201 can be opened with a suitable pressure. After the position of the limiting base 41 relative to the guide post 43 is adjusted, it can be locked by the first locking device to restrict the movement of the limiting base 41 relative to the guide post 43, thus locking the limiting base 41 in the adjusted position. The first locking device 44 then unlocks, allowing the limiting base 41 to move relative to the guide post 43.

[0171] It is understood that the installation method of the limiting base 41 and the guide post 43 is not limited. For example, the limiting base 41 is connected to the guide post 43, the limiting base 41 is fixed on the guide post 43, and the limiting base 41 hardly moves relative to the guide post 43.

[0172] In some embodiments, please refer to Figures 7 and 8. The limiting base 41 has a first mounting hole 411, a first buffer groove 412 and a first connecting portion 413. The guide post 43 passes through the first mounting hole 411. The first buffer groove 412 communicates with the first mounting hole 411. The first buffer groove 412 penetrates the hole wall of the first mounting hole 411 along one radial side of the first mounting hole 411. The first connecting portions 413 are provided on opposite sides of the first buffer groove 412. The first locking device 44 is used to move the first connecting portions 413 on both sides closer or further apart.

[0173] For example, the cross-sectional shape of the first mounting hole 411 is adapted to the cross-sectional shape of the guide post 43.

[0174] For example, the cross-sectional shape of the first mounting hole 411 is circular.

[0175] For example, the cross-sectional shape of the first mounting hole 411 is polygonal.

[0176] For example, the first locking device 44 is a bolt or a set screw. The first connecting portions 413 on both sides of the first buffer groove 412 are connected by the bolt or set screw. By tightening the bolt or set screw, the first connecting portions 413 on both sides are brought closer together to lock the limiting base 41 and the guide post 43. By loosening the bolt or set screw, the first connecting portions 413 on both sides are moved apart to unlock the limiting base 41 and the guide post 43.

[0177] In this embodiment, the first connecting portions 413 on both sides are spaced apart by a first buffer groove 412 communicating with the first mounting hole 411. A first locking device 44 is used to bring the first connecting portions 413 on both sides closer together, thereby locking the first locking device 44. Conversely, the first locking device 44 is used to move the first connecting portions 413 on both sides away from each other, thereby unlocking the first locking device 44. The first locking device 44 can bring the first connecting portions 413 on both sides closer together at any position on the guide post 43 to lock the limiting base 41 and the guide post 43, thereby achieving locking of the limiting base 41 relative to the guide post 43 at any position.

[0178] It is understood that the structure of the limiting base 41 is not limited. For example, the limiting base 41 includes a first mounting hole 411, the walls of the first mounting hole 411 are connected end to end, that is, the limiting base 41 does not have a first buffer groove 412 and a first connecting part 413, and the position of the limiting base 41 relative to the guide post 43 is locked by the cooperation of the pin and the pin hole on the guide post 43.

[0179] In some embodiments, referring to FIG5, the valve opening device 102 further includes a second locking device 5 installed on the support beam 1, the second locking device 5 being used to lock or unlock the support beam 1 and the guide post 43.

[0180] The second locking device 5 locks the support beam 1 and the guide post 43, fixing the support beam 1 to the guide post 43, and the support beam 1 hardly moves relative to the guide post 43.

[0181] The second locking device 5 unlocks the support beam 1 from the guide post 43, allowing the support beam 1 to move relative to the guide post 43 along the axial direction of the guide post 43.

[0182] For example, the second locking device 5 can be a bolt or a screw.

[0183] In this embodiment, when it is necessary to move the battery cell 200 into or out of the carrier body 101 of the transfer carrier 100, the support beam 1 and guide post 43 can be unlocked by the second locking device 5. After the unlocked support beam 1 is moved upward to a predetermined position, the support beam 1 and guide post 43 are locked by the second locking device 5, so that sufficient space is reserved below the support beam 1 for placing the battery cell 200, which facilitates the movement of the battery cell 200 into or out of the carrier body 101 of the transfer carrier 100. After the battery cell 200 is moved into the carrier body 101 of the transfer carrier 100, the support beam 1 locked above can be unlocked by the second locking device 5, so that the support beam 1 can move relative to the guide post 43. The valve opener 2 installed on the support beam 1 is connected to the one-way valve 201 on the outer shell of the battery cell 200 by gravity. When the clamping assembly 4 clamps the support beam 1, the valve opener 2 can press open the one-way valve 201 on the outer shell of the battery cell 200.

[0184] It is understood that the specific structure of the valve opening device 102 is not limited. For example, the valve opening device 102 may not be equipped with the second locking device 5, and the battery cell 200 can be moved into or out of the support body 101 by an operator lifting the support beam 1.

[0185] In some embodiments, referring to FIG7, the support beam 1 has a second mounting hole 11, a second buffer groove 12 and a second connecting portion 13. The guide post 43 passes through the second mounting hole 11. The second buffer groove 12 communicates with the second mounting hole 11. The second buffer groove 12 penetrates the hole wall of the second mounting hole 11 along one radial side. The second connecting portions 13 are provided on opposite sides of the second buffer groove 12. The second locking device 5 is used to move the two second connecting portions 13 closer or further apart.

[0186] The guide post 43 passes through the second mounting hole 11, and the support beam 1 is sleeved on the guide post 43 through the second mounting hole 11 and moves along the axial direction of the guide post 43.

[0187] For example, the cross-sectional shape of the second mounting hole 11 can be circular or polygonal.

[0188] The second buffer groove 12, which communicates with the second mounting hole 11, serves as a buffer and can appropriately increase or decrease the space within the second mounting hole 11.

[0189] For example, the second locking device 5 is a bolt or a set screw. The second connecting parts 13 on both sides are tightened by the bolt or set screw to bring the second connecting parts 13 on both sides closer to each other, and the space inside the second mounting hole 11 is reduced, thereby locking the support beam 1 and the guide post 43. The second connecting parts 13 on both sides are loosened by the bolt or set screw to move the second connecting parts 13 on both sides away from each other, and the space inside the second mounting hole 11 is expanded, thereby unlocking the support beam 1 and the guide post 43.

[0190] In this embodiment, the second locking device 5 brings the two second connecting portions 13 closer together, reduces the space within the second buffer groove 12 and the second mounting hole 11, and causes the inner wall of the second mounting hole 11 to grip the guide post 43, thereby locking the support beam 1 and the guide post 43 with the second locking device 5. Conversely, the second locking device 5 moves the two second connecting portions 13 further apart, expands the space within the second buffer groove 12 and the second mounting hole 11, and causes the inner wall of the second mounting hole 11 to loosen the guide post 43, thereby unlocking the support beam 1 and the guide post 43 with the second locking device 5. By bringing the two second connecting portions 13 closer together to lock the support beam 1 and the guide post 43, the support beam 1 can be locked at any position on the guide post 43, providing greater flexibility in the locking position of the support beam 1.

[0191] It is understood that the specific structure of the support beam 1 is not limited. For example, the support beam 1 may not have the second buffer groove 12 and the second connecting part 13. The hole wall of the second mounting hole 11 is a structure with the ends connected. The guide post 43 has a pin hole. The support beam 1 and the guide post 43 are locked by the pin passing through the pin hole on the support beam 1 and engaging with the pin hole on the guide post 43. The pin is removed from the pin hole to unlock the support beam 1 and the guide post 43.

[0192] In some embodiments, please refer to Figures 2 and 7, the clamping assembly 4 further includes a base 45, a guide post 43 is connected to the base 45, and a third mounting hole 451 is formed on the base 45 at a distance from the guide post 43.

[0193] The guide post 43 is connected to the base 45, and the guide post 43 hardly moves relative to the base 45.

[0194] For example, the guide post 43 is welded to the base 45.

[0195] For example, the guide post 43 is integrally formed with the base 45.

[0196] For example, a bolt or stud or other connector passes through a third mounting hole 451 to mount the base 45 onto the support body 101.

[0197] The third mounting hole 451 is arranged at an interval from the guide post 43. The third mounting hole 451 is not used for mounting the guide post 43.

[0198] For example, the supporting body 101 includes an aluminum profile for mounting the base 45. The base 45 is mounted in the groove of the aluminum profile by means of T-bolts passing through the third mounting hole 451, so that the base 45 can be mounted at any suitable position on the aluminum profile along the length of the aluminum profile.

[0199] For example, each transport vehicle 100 has at least two valve opening devices 102 on its supporting body 101. The arrangement direction of the at least two valve opening devices 102 is intersected with the length direction of the support beam 1, and the length direction of the aluminum profile of the supporting body 101 is arranged along the arrangement direction of the at least two valve opening devices 102.

[0200] For example, please refer to Figures 1 to 3, where arrow R3 indicates the arrangement direction of at least two valve opening devices 102.

[0201] In this embodiment, the guide post 43 is connected to the base 45, and the base 45 can be easily installed with other structures through the third mounting hole 451 on the base 45.

[0202] It is understood that the specific structure of the valve opening device 102 is not limited. For example, the clamping assembly 4 may not have a base 45, and the guide post 43 may be mounted on the supporting body 101.

[0203] In some embodiments, referring to Figures 5 and 7, the support beam 1 includes a beam body 14 and a beam cover 15. A valve opener 2 is movably mounted on the beam body 14. The beam cover 15 is mounted on the beam body 14, an elastic member 3 is mounted between the valve opener 2 and the beam cover 15, and a clamping assembly 4 is used to clamp the beam body 14 and / or the beam cover 15 to move the support beam 1 toward the valve opener 2 in a predetermined direction.

[0204] For example, the beam body 14 is welded to the beam cap 15.

[0205] For example, the beam body 14 and the beam cap 15 are detachably connected.

[0206] The beam cover 15 supports the elastic element 3, and the beam cover 15 provides a reaction force to the elastic element 3 so that the elastic element 3 can provide elastic force to the valve opener 2.

[0207] For example, clamping component 4 clamps beam 14.

[0208] For example, the clamping assembly 4 clamps the beam cover 15.

[0209] For example, the elastic element 3 is connected to the beam cover 15 and the valve opener 2 respectively.

[0210] For example, the second mounting hole 11 spans between the beam body 14 and the beam cover 15.

[0211] For example, the second buffer groove 12 spans between the beam body 14 and the beam cover 15.

[0212] For example, the second connection 13 spans across the beam body 14 and the beam cover 15.

[0213] In this embodiment, the support beam 1 includes two components: a beam body 14 and a beam cover 15. During assembly, the beam body 14 and the beam cover 15 can be separated. The valve opener 2 can be installed on the beam body 14 first, followed by the installation of the elastic element 3 and the beam cover 15. This allows the valve opener 2 and the elastic element 3 to be installed on the support beam 1 relatively easily. When the valve opener 2 is detached from the one-way valve 201 of the battery cell 200, the beam body 14 can effectively support the valve opener 2.

[0214] It is understood that the specific structure of the support beam 1 is not limited. For example, the support beam 1 may not have a beam body 14. One end of the elastic member 3 is connected to the beam cover 15, and the other end of the elastic member 3 is connected to the valve opener 2. The beam cover 15 is clamped by the clamping assembly 4, causing the beam cover 15 to press down on the elastic member 3. Thus, the elastic member 3 applies a spring force to the valve opener 2, causing the one-way valve 201 to be pressed open.

[0215] In some embodiments, please refer to FIG5, the beam 14 has a receiving cavity 141 and a limiting ring 142. The limiting ring 142 is located on the side of the receiving cavity 141 away from the beam cover 15. The valve opener 2 has a limiting flange 21 located in the receiving cavity 141 at one end facing the beam cover 15. The valve opener 2 passes through the limiting ring 142, and the limiting flange 21 is used to abut against the limiting ring 142 to restrict the limiting flange 21 from leaving the receiving cavity 141.

[0216] For example, the limiting ring 142 may be in the shape of a ring.

[0217] For example, the cavity 141 may be cylindrical in shape.

[0218] For example, the limiting ring 142 can be annular in shape, the receiving cavity 141 can be cylindrical in shape, and the inner diameter of the limiting ring 142 is smaller than the inner diameter of the receiving cavity 141.

[0219] For example, the number of limiting rings 142 can be at least two, each limiting ring 142 being used to abut against the limiting flange 21 of the corresponding valve opener 2 to limit the flange 21 from the receiving cavity 141.

[0220] For example, the number of receiving cavities 141 can be at least two, with the limiting flange 21 of each valve opener 2 located in the corresponding receiving cavity 141.

[0221] For example, the number of receiving cavities 141 can be one, and the limiting flanges 21 of all valve openers 2 are located in one receiving cavity 141.

[0222] The clamping assembly 4 clamps the beam 14, causing the beam 14 to press down and move toward the valve opener 2. The limiting flange 21 of the valve opener 2 moves within the receiving cavity 141, and part of the valve opener 2 moves within the space inside the limiting ring 142, bringing the valve opener 2 closer to the beam cover 15.

[0223] In this embodiment, the inner space of the limiting ring 142 and the receiving cavity 141 provide movement space for the valve opener 2 to move in a preset direction. The limiting ring 142 limits the flange 21 to disengage from the receiving cavity 141. The entire valve opener 2 moves basically within the beam 14. This allows the valve opener 2 to extend a certain distance out of the beam 14 to basically meet the valve opening requirements of the valve opener 2. The distance of the valve opener 2 in the preset direction can be set to be shorter, which is beneficial to reduce the volume and weight of the valve opener 2.

[0224] The battery production line of this disclosure includes a baking device and a conveying device. The baking device includes a transfer carrier 100 and a main body. The main body is used to bake battery cells 200 on the transfer carrier 100, and the transfer carrier 100 is used to move the battery cells 200 into or out of the main body. The conveying device is used to move the battery cells 200 into or out of the transfer carrier 100. Referring to Figures 1-5, the transfer carrier 100 includes a supporting body 101 and a valve opening device 102. The valve opening device 102 is installed on the supporting body 101 to open the valves on the battery cells 200 on the supporting body 101. The valves on the battery cells 200 on the supporting body 101 are opened outside the main body of the baking device. Referring to Figures 1-8, the valve opening device 102 includes a support beam 1, a valve opener 2, an elastic member 3, and a clamping assembly 4. The valve opener 2 is movably installed on the support beam 1, and the direction of movement of the valve opener 2 relative to the support beam 1 is a preset direction. The elastic member 3 is installed between the support beam 1 and the valve opener 2 along the preset direction. A support beam 1 is mounted on a clamping assembly 4, which clamps the support beam 1 to move it toward the valve opener 2 in a preset direction. The clamping assembly 4 is a quick-release clamp based on a linkage mechanism. The quick-release clamp presses down to clamp the support beam 1, causing the support beam 1 to press down on the valve opener 2, which in turn opens the one-way valve 201 of the battery cell 200. Multiple valve openers 2 are provided on the support beam 1, allowing the one-way valves 201 of the row of battery cells 200 arranged along the length of the support beam 1 to open during the downward press. When it is necessary to close the one-way valve 201 of the battery cell 200, the quick-release clamp is lifted to release and unlock the support beam 1. The quick-release clamp no longer applies clamping force to the support beam 1, and the one-way valve 201 of the battery cell 200 overcomes the weight of the valve opener 2 and the elastic element 3, lifting the valve opener 2 and closing the one-way valve 201 of the battery cell 200. Guide posts 43 are provided at both ends of the support beam 1, and clamping assemblies 4 are provided at both ends of the support beam 1. The clamping assembly 4 includes a limiting base 41 and a clamp 42. The limiting base 41 is located on the side of the support beam 1 facing the valve opener 2. The clamp 42 is connected to the limiting base 41 and has a clamping part 421. The support beam 1 is at least partially located between the clamping part 421 and the limiting base 41. The clamping part 421 and the limiting base 41 are used to clamp the support beam 1 so that the support beam 1 moves toward the valve opener 2 in a preset direction. The limiting base 41 is movably mounted on the guide posts 43. The clamping assembly 4 also includes a first locking device 44 mounted on the limiting base 41. The first locking device 44 is used to lock or unlock the limiting base 41 and the guide posts 43.The limiting base 41 has a first mounting hole 411, a first buffer groove 412, and a first connecting part 413. The guide post 43 passes through the first mounting hole 411. The first buffer groove 412 communicates with the first mounting hole 411 and penetrates the wall of the first mounting hole 411 along one radial side. The first connecting parts 413 are provided on opposite sides of the first buffer groove 412. The first locking device 44 is used to move the first connecting parts 413 closer together or further apart. The valve opening device 102 also includes a second locking device 5 installed on the support beam 1. The second locking device 5 is used to lock or unlock the support beam 1 and the guide post 43. The support beam 1 has a second mounting hole 11, a second buffer groove 12, and a second connecting part 13. The guide post 43 passes through the second mounting hole 11. The second buffer groove 12 communicates with the second mounting hole 11 and penetrates the hole wall of the second mounting hole 11 along one radial side. The second connecting parts 13 are provided on opposite sides of the second buffer groove 12. The second locking device 5 is used to move the two second connecting parts 13 closer together or further apart. The clamping assembly 4 also includes a base 45. The guide post 43 is connected to the base 45. The base 45 has a third mounting hole 451 spaced apart from the guide post 43. The base 45 is installed in the groove of the aluminum profile of the supporting body 101 by passing T-bolts through the third mounting holes 451. Before the transfer carrier 100 enters the main body of the equipment, the battery cells 200 are placed inside the support body 101. The battery cells 200 placed on the support body 101 are positioned by the positioning spacer 103. The one-way valve 201 of the battery cells 200 is in the closed state. The quick clamp is released. After the battery cells 200 are placed, the support beam 1 is moved to the top of the battery cells 200 and contacts the one-way valve 201 while the second locking device 5 is unlocked. While the first locking device 44 is locked, the quick clamp is used to clamp the support beam 1 so that the support beam 1 moves toward the valve opener 2. The valve opener 2 is pressed open by the elastic element 3. The one-way valve 201 of the battery cells 200 changes from the closed state to the open state. Then the transfer carrier 100 is moved into the main body of the baking equipment. After baking is completed, the transfer carrier 100 is moved out of the main body of the equipment and the quick clamp is released. While the second locking device 5 is unlocked, the support beam 1 is lifted and the one-way valve 201 is closed.

[0225] The above embodiments are merely illustrative of the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this disclosure, and all should be covered within the scope of this disclosure. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way.

Claims

1. A valve opening device, comprising: Support beam; A valve opener is movably mounted on the support beam, and the valve opener moves relative to the support beam in a preset direction. An elastic element is installed between the support beam and the valve opener along the preset direction; A clamping assembly, wherein the support beam is mounted on the clamping assembly, the clamping assembly being used to clamp the support beam so that the support beam moves toward the valve opener along the preset direction.

2. The valve opening device according to claim 1, wherein, The clamping assembly includes: A limiting base is located on the side of the support beam facing the valve opener; A clamp is connected to the limiting base. The clamp has a clamping part. The support beam is located at least partially between the clamping part and the limiting base. The clamping part and the limiting base are used to clamp the support beam so that the support beam moves toward the valve opener along the preset direction.

3. The valve opening device according to claim 2, wherein, The clamping assembly also includes a guide post, to which the support beam is movably mounted.

4. The valve opening device according to claim 3, wherein, The limiting base is disposed on the guide post so that the guide post supports the limiting base.

5. The valve opening device according to claim 4, wherein, The limiting base is movably mounted on the guide post, and the clamping assembly further includes a first locking device mounted on the limiting base, the first locking device being used to lock or unlock the limiting base and the guide post.

6. The valve opening device according to claim 5, wherein, The limiting base has a first mounting hole, a first buffer groove and a first connecting part. The guide post passes through the first mounting hole. The first buffer groove communicates with the first mounting hole. The first buffer groove penetrates the hole wall of the first mounting hole on one side along the radial direction of the first mounting hole. The first connecting part is provided on opposite sides of the first buffer groove. The first locking device is used to move the first connecting parts on both sides closer or further apart.

7. The valve opening device according to any one of claims 3 to 6, wherein, The valve opening device further includes a second locking device installed on the support beam, which is used to lock or unlock the support beam and the guide column.

8. The valve opening device according to claim 7, wherein, The support beam has a second mounting hole, a second buffer groove, and a second connecting part. The guide post passes through the second mounting hole. The second buffer groove communicates with the second mounting hole. The second buffer groove penetrates the hole wall of the second mounting hole on one side along the radial direction of the second mounting hole. The second connecting parts are provided on opposite sides of the second buffer groove. The second locking device is used to move the second connecting parts on both sides closer or further apart.

9. The valve opening device according to any one of claims 3 to 8, wherein, The clamping assembly also includes a base, the guide post is connected to the base, and a third mounting hole is formed on the base at a distance from the guide post.

10. The valve opening device according to any one of claims 1 to 9, wherein, The supporting beam includes: The beam body, wherein the valve opener is movably mounted on the beam body; A beam cover is installed on the beam body, the elastic element is installed between the valve opener and the beam cover, and the clamping assembly is used to clamp the beam body and / or the beam cover so that the support beam moves toward the valve opener along the preset direction.

11. The valve opening device according to claim 10, wherein, The beam has a receiving cavity and a limiting ring. The limiting ring is located on the side of the receiving cavity away from the beam cover. The end of the valve opener facing the beam cover has a limiting flange located in the receiving cavity. The valve opener passes through the limiting ring. The limiting flange is used to abut against the limiting ring to prevent the limiting flange from leaving the receiving cavity.

12. A transfer vehicle, comprising: The supporting structure is used to house the individual battery cells; The valve opening device according to any one of claims 1 to 11 is installed on the support body for opening the valve of the battery cell on the support body.

13. The transfer vehicle according to claim 12, wherein, The transport vehicle also includes a positioning spacer installed on the carrier body, the positioning spacer being used to position the battery cell on the carrier body.

14. A baking apparatus, comprising: The transfer vehicle according to claim 12 or 13; The main body of the equipment is used to bake the individual battery cells on the transfer carrier, which is used to move the main body of the equipment into or out of the transfer carrier.

15. A battery production line, comprising: The baking apparatus according to claim 14; A conveying device for moving individual battery cells into or out of the transport vehicle.

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