Assembling mechanism, valve assembly and battery production equipment

Abstract

The utility model relates to an assembling mechanism, a valve assembly and battery production equipment, and the assembling mechanism comprises a main body which is movably arranged; and the deformation part is arranged on the main body, has a separation state separated from the valve element and a connection state connected with the valve element, and is configured to be capable of being controlled to be switched between the separation state and the connection state and drive the valve element to move along with the main body in the connection state. When the deformation piece is in the connection state, connection between the deformation piece and the valve element can be achieved, at the moment, the deformation piece can drive the valve element to move and accurately assemble the valve element to the valve sleeve, after the valve element and the valve sleeve are assembled, the deformation piece and the valve element are separated from each other only by switching the deformation piece to the separation state, and the valve element can be accurately assembled. The deformation part can be driven by the main body to be away from the valve element, so that the next valve element can be conveniently taken and assembled; therefore, by means of the structure, assembling between the valve element and the valve sleeve can be achieved more conveniently, rapidly and more accurately.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of batteries, in particular to an assembling mechanism, a valve assembly and a battery production device. BACKGROUND

[0002] The liquid injection hole on the battery monomer needs to be sealed by a valve assembly so as to facilitate subsequent liquid injection or exhaust through the liquid injection hole. The valve assembly generally comprises a valve sleeve and a valve core. The valve sleeve is arranged in the liquid injection hole, and the valve core can cooperate with the valve sleeve to realize the sealing or opening of the liquid injection hole.

[0003] However, the current assembling process of the valve sleeve and the valve core is relatively complex, and the assembling precision is low, which affects the overall assembling efficiency and assembling quality of the battery monomer. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide an assembling mechanism, a valve assembly and a battery production device in view of the problems that the current assembling process of the valve sleeve and the valve core is relatively complex, and the assembling precision is low, which affects the overall assembling efficiency and assembling quality of the battery monomer.

[0005] In a first aspect, the application provides an assembling mechanism for assembling a valve core and a valve sleeve. The assembling mechanism comprises a main body and a deformation piece. The main body is movably arranged. The deformation piece is arranged on the main body and has a separated state in which the deformation piece is separated from the valve core and a connected state in which the deformation piece is connected to the valve core. The deformation piece is configured to be controlled to switch between the separated state and the connected state and drive the valve core to move with the main body in the connected state.

[0006] Therefore, the deformation piece can be switched between the separated state and the connected state, and drive the valve core to move under the cooperation of the main body to assemble the valve core to the valve sleeve. Through the above structure, the assembling of the valve core and the valve sleeve can be more conveniently and accurately realized.

[0007] In some embodiments, the deformation piece is arranged to be deformable, and the valve core is provided with a receiving groove. In the separated state, the deformation piece is configured to be inserted into or removed from the receiving groove. In the connected state, when at least part of the deformation piece is located in the receiving groove, the deformation piece abuts against a groove side wall of the receiving groove to drive the valve core to move therewith.

[0008] Therefore, through the above structure, the deformation piece can be quickly switched between the separated state and the connected state to enable the deformation piece to drive the valve core and the valve sleeve to be smoothly assembled, thereby improving the assembling efficiency and the assembling quality.

[0009] In some embodiments, the assembling mechanism further comprises a pipe assembly connected between the main body and the deformation piece and used to fill or extract a filling medium to the deformation piece to change the volume of the deformation piece.

[0010] Thus, by filling or extracting the filling medium into or out of the deformation member through the pipe assembly, the volume change of the deformation member can be flexibly controlled, so that the deformation member can be smoothly switched between the separated state and the connected state, and the valve core can be transferred and smoothly assembled with the valve sleeve.

[0011] In some embodiments, the deformation member has a deformable inner cavity, and the pipe assembly is in communication with the inner cavity and is used to fill the filling medium into the inner cavity.

[0012] Through the above structure, the volume of the deformation member can be flexibly changed according to the filling condition of the filling medium in the inner cavity, so that the volume of the deformation member can be better controlled, and the deformation member can better drive the valve core to move and assemble the valve core to the valve sleeve.

[0013] In some embodiments, the main body includes a connecting portion and a pressing portion connected with each other, the pipe assembly is arranged on the connecting portion, and the pressing portion is used to press the valve core to press the valve core into the valve sleeve.

[0014] Thus, by arranging the pressing portion, the valve core can be more stably pressed into the valve sleeve, and the valve core and the valve sleeve can be more stably assembled.

[0015] In some embodiments, a mounting hole is arranged through the connecting portion in the direction in which the deformation member is inserted into or extracted from the accommodating groove, one end of the pipe assembly passes through the mounting hole and is in communication with the deformation member, and the pressing portion is arranged around the outer periphery of the connecting portion.

[0016] Thus, during the process of pressing the valve core into the valve sleeve, the pressing portion can be more stably pressed against the peripheral wall of the valve core, so that the valve core can be stably assembled with the valve sleeve.

[0017] In some embodiments, the pipe assembly is movably arranged in the mounting hole in the direction in which the deformation member is inserted into or extracted from the accommodating groove.

[0018] Through the above structure, during the process of pressing the valve core into the valve sleeve, the pressing portion can better press the valve core downward, so that the assembly of the valve core is more compact.

[0019] In some embodiments, the main body is movably arranged in the horizontal direction and / or the vertical direction.

[0020] Thus, when the main body moves in the horizontal direction, the valve core can be driven to move from the initial position to directly above the valve sleeve and the liquid injection hole. When the main body moves in the vertical direction, the valve core can be driven to move downward to be assembled with the valve sleeve, so that the valve core and the valve sleeve can be smoothly assembled.

[0021] In a second aspect, the application further provides a valve assembly for sealing the liquid injection hole of a battery cell under the driving of the assembly mechanism as described above, the valve assembly comprising a valve sleeve and a valve core, the valve sleeve being configured to be installed into the liquid injection hole, the valve sleeve being provided with a flow passage therethrough, the valve core being provided with a receiving groove configured to cooperate with the deformation member and capable of plugging the flow passage or being separated from the flow passage under the driving of the main body and the deformation member.

[0022] In a third aspect, the application further provides a battery production system comprising the assembly mechanism as described above.

[0023] The assembly mechanism, the valve assembly and the battery production system described above can switch the deformation member between the separated state and the connected state, and when the deformation member is in the connected state, the connection between the deformation member and the valve core can be achieved, at this time, the deformation member can drive the valve core to move and accurately assemble the valve core to the valve sleeve, and when the valve core is assembled to the valve sleeve, the deformation member only needs to be switched to the separated state to separate the deformation member and the valve core from each other, and then the main body can drive the deformation member to move away from the valve core, so as to facilitate the taking and assembling of the next valve core; thus, the assembly of the valve core and the valve sleeve can be achieved more conveniently, quickly and accurately by the above structure. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a structural schematic view of an assembly mechanism according to one or more embodiments.

[0025] Figure 2 FIG. 2 is a structural schematic view of a valve core according to one or more embodiments.

[0026] Figure 3 FIG. 3 is a structural schematic view of a valve sleeve arranged in a liquid injection hole according to one or more embodiments.

[0027] Figure 4 FIG. 4 is a structural schematic view of a deformation member in a separated state in an assembly mechanism according to one or more embodiments.

[0028] Figure 5 FIG. 5 is a structural schematic view of a deformation member in a connected state in an assembly mechanism according to one or more embodiments.

[0029] Figure 6 FIG. 6 is a structural schematic view of a deformation member in a separated state in an assembly mechanism according to one or more embodiments.

[0030] Figure 7 FIG. 7 is a structural schematic view of a deformation member in a separated state in an assembly mechanism according to one or more embodiments.

[0031] Label: 100, assembly mechanism; 200, valve core; 300, valve sleeve; 400, liquid injection hole; 201, accommodating groove; 10, main body; 20, deformation piece; 30, pipe assembly; 11, connecting part; 12, pressing part. DETAILED DESCRIPTION

[0032] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the descriptions of the present application are merely intended to be illustrative and that changes can be made to the description without departing from the spirit of the present application.

[0033] In the description of the present application, it should be understood that if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only intended to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0034] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0035] In the present application, unless otherwise explicitly specified and limited, if the terms "mounting", "connecting", "connecting", "fixing" and the like appear, these terms should be understood in a broad sense. For example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In the present application, unless specifically stated and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0037] It should be noted that if an element is referred to as being "fixed to" or "set to" another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for illustrative purposes and do not represent the only implementation.

[0038] At present, from the development of market situation, the application of battery is more and more widely. The battery is not only applied to the energy storage power supply system of hydropower, thermal power, wind power and solar power station, but also widely applied to electric bicycles, electric motorcycles, electric vehicles and other electric vehicles and other fields. With the continuous expansion of the application field of battery, the demand of its market is also increasing.

[0039] The battery monomer is the smallest unit to constitute the battery. The battery monomer usually includes a shell, a top cover and an electrode assembly. The top cover sealing cover is arranged at the opening of the shell, and the top cover and the shell jointly enclose a containing cavity. The electrode assembly is placed in the containing cavity.

[0040] Further, the battery monomer will sequentially pass through the exhaust and liquid injection processes during manufacturing. The exhaust refers to placing the battery monomer in a high-temperature and vacuum environment for baking, so that the moisture of the electrode assembly received in the containing cavity can be evaporated and discharged to the outside of the battery monomer through the liquid injection hole on the top cover of the battery monomer. After the exhaust, the battery monomer needs to be injected with electrolyte, that is, the electrolyte is injected into the containing cavity. However, the electrolyte cannot contact the moisture, and during the injection process, there can be an insufficient problem after one injection, so that multiple injections are needed to be realized by sealing and unsealing, so that the electrolyte can be better filled in the containing cavity. That is, the liquid injection hole needs to be sealed and unsealed multiple times.

[0041] Therefore, in the current battery cell structure, a valve assembly is usually arranged in the liquid injection hole to seal or open the liquid injection hole. The valve assembly usually includes a valve sleeve and a valve core. The valve sleeve is arranged in the liquid injection hole, and the valve core can cooperate with the valve sleeve to seal or open the liquid injection hole.

[0042] However, the assembly process of the valve sleeve and the valve core is relatively complex, and the assembly precision is low, which affects the overall assembly efficiency and assembly quality of the battery cell.

[0043] Based on the above considerations, in order to solve the problem that the assembly process of the valve sleeve and the valve core is relatively complex and the assembly precision is low, which affects the overall assembly efficiency and assembly quality of the battery cell, one or more embodiments of the present application provide an assembly mechanism. By arranging a deformation member, the deformation member can be switched between a separated state and a connected state. When the deformation member is in the connected state, the connection between the deformation member and the valve core can be achieved. At this time, the deformation member can drive the valve core to move and accurately assemble the valve core to the valve sleeve. After the valve core and the valve sleeve are assembled, the deformation member only needs to be switched to the separated state, so that the deformation member and the valve core are separated from each other. Then, the main body can drive the deformation member to move away from the valve core, so as to facilitate the taking and assembly of the next valve core. Therefore, by using the above structure, the assembly of the valve core and the valve sleeve can be achieved more conveniently, quickly and accurately.

[0044] It should be noted that the assembly mechanism mentioned in the embodiments of the present application is applied to the production and manufacturing process of the battery cell. Specifically, the assembly mechanism is used to quickly and accurately assemble the valve core into the valve sleeve to achieve the assembly of the valve assembly in the battery cell.

[0045] The battery cell is the smallest unit to constitute a battery apparatus. That is, the battery apparatus can include one or more battery cell assemblies to provide voltage and capacity. The battery cell assembly can include a plurality of battery cells connected in series, in parallel, or in a mixed manner through a busbar.

[0046] In some embodiments, the battery cell assembly is usually formed by arranging a plurality of battery cells. As an example, the battery cell assembly can be a battery module formed by arranging and fixing a plurality of battery cells into an independent module. As an example, the battery module can be formed by bundling a plurality of battery cells with a cable tie.

[0047] In some embodiments, the battery apparatus can be a battery pack including a box body and one or more battery cell assemblies accommodated in the box body.

[0048] As an example, the battery cell assembly can be a battery module, and the battery cell assembly can be accommodated in the case by fixing the battery module in the case.

[0049] As an example, the battery cell assembly can also be accommodated in the case by fixing a plurality of battery cells directly to the case.

[0050] Referring to Figure 1 , Figure 2 and Figure 3 , an embodiment of the present application provides an assembling mechanism 100 for assembling a valve core 200 and a valve sleeve 300. The assembling mechanism 100 comprises a main body 10 and a deformation member 20, and the main body 10 is movably arranged. The deformation member 20 is arranged on the main body 10 and has a separated state of being separated from the valve core 200 and a connected state of being connected with the valve core 200, and the deformation member 20 is configured to be capable of being controlled to switch between the separated state and the connected state and drive the valve core 200 to move with the main body 10 in the connected state.

[0051] It should be noted that the valve core 200 and the valve sleeve 300 together constitute a valve assembly of a battery cell, the valve sleeve 300 is arranged in a liquid injection hole 400 of the battery cell, and then the valve core 200 is sealingly arranged on the valve sleeve 300, so that the liquid injection hole 400 is sealed. When it is necessary to open the liquid injection hole 400, the valve core 200 is only needed to be removed from the valve sleeve 300, so that the liquid injection hole 400 is opened.

[0052] The main body 10 refers to a component capable of providing a mounting basis for the deformation member 20 and other structures in the assembling mechanism 100, and the main body 10 is movably arranged, that is, the main body 10 can be moved by external structures such as a mechanical arm, a guide rail or a lead screw.

[0053] The deformation member 20 refers to a component capable of driving the valve core 200 to move by being connected or separated from the valve core 200, so as to assemble the valve core 200 to the valve sleeve 300. The deformation member 20 is arranged on the main body 10, so as to be capable of moving with the main body 10. The deformation member 20 is switched from the initial separated state to the connected state, so that the deformation member 20 is connected with the valve core 200. In this way, the deformation member 20 can drive the valve core 200 to move synchronously when the main body 10 moves, so as to assemble the valve core 200 to the valve sleeve 300.

[0054] When the valve core 200 and the valve sleeve 300 are assembled, the deformation member 20 is switched from the connected state to the separated state, at this time, the deformation member 20 is separated from the valve core 200, so that the deformation member 20 moves away from the valve core 200, so as to realize the assembly between the next valve core 200 and the valve sleeve 300 by using the deformation member 20.

[0055] Thus, the deformation member 20 can be switched between the separated state and the connected state, and the valve core 200 is driven to move by the cooperation of the main body 10 to assemble the valve core 200 to the valve sleeve 300. Through the above structure, the assembly between the valve core 200 and the valve sleeve 300 can be more convenient, faster and more accurate.

[0056] As shown in Figure 4 and Figure 5 In some embodiments, the deformation member 20 is deformedly arranged, and the valve core 200 is provided with a receiving groove 201. In the separated state, the deformation member 20 is configured to be inserted into or taken out of the receiving groove 201. In the connected state, when at least part of the deformation member 20 is located in the receiving groove 201, the deformation member 20 abuts against the groove side wall of the receiving groove 201 to drive the valve core 200 to move therewith.

[0057] It should be noted that the deformation member 20 is deformedly arranged, which means that the volume of the deformation member 20 can be controlled to deform, i.e., the volume of the deformation member 20 can be manually controlled to increase or decrease, and the switching between the separated state and the connected state is realized through the deformation of the volume of the deformation member 20.

[0058] The valve core 200 is provided with a receiving groove 201, and at least part of the deformation member 20 can be accommodated in the receiving groove 201. In the separated state, the volume of the deformation member 20 is small, so that the deformation member 20 can be smoothly inserted into the receiving groove 201 or taken out of the receiving groove 201.

[0059] When at least part of the deformation member 20 is located in the receiving groove 201, the deformation member 20 can be switched from the separated state to the connected state. At this time, the volume of the deformation member 20 expands to increase, so that the deformation member 20 can quickly fill the receiving groove 201, and the deformation member 20 can abut against the groove side wall of the receiving groove 201. In this way, a frictional force is formed between the deformation member 20 and the groove side wall of the receiving groove 201, and the deformation member 20 is connected with the valve core 200 under the action of the frictional force. At this time, the main body 10 drives the deformation member 20 and the valve core 200 thereon to move synchronously to assemble the valve core 200 to the valve sleeve 300.

[0060] After the valve core 200 is assembled with the corresponding valve sleeve 300, the deformation member 20 is switched from the connected state to the separated state. At this time, the volume of the deformation member 20 decreases, and a gap is generated between the deformation member 20 and the groove side wall of the receiving groove 201, i.e., the deformation member 20 is separated from the valve core 200. At this time, the deformation member 20 can be smoothly taken out of the receiving groove 201 to facilitate the connection between the deformation member 20 and the next valve core 200.

[0061] Therefore, by the above structure, the quick switching of the deformation member 20 between the separated state and the connected state can be realized, so that the deformation member 20 can drive the valve core 200 and the valve sleeve 300 to be smoothly assembled, and the assembly efficiency and quality are improved.

[0062] In some embodiments, the assembly mechanism 100 further comprises a pipe assembly 30 connected between the main body 10 and the deformation member 20, and used to fill or extract the filling medium into the deformation member 20 to change the volume of the deformation member 20.

[0063] Specifically, the pipe assembly 30 can include a delivery pipe arranged on the main body 10 and in communication with the deformation member 20. In this way, the filling medium can be filled into the deformation member 20 through the delivery pipe.

[0064] It should be noted that the filling medium can be a gas, a liquid or other medium. By filling the filling medium into the deformation member 20 through the delivery pipe, the volume of the deformation member 20 is expanded, so that the deformation member 20 can be switched to the connected state. That is, the deformation member 20 is pressed against the groove side wall of the accommodating groove 201, and the valve core 200 can be synchronously moved with the deformation member 20 by the friction between the deformation member 20 and the groove side wall of the accommodating groove 201.

[0065] Further, the filling medium in the deformation member 20 can also be extracted through the delivery pipe, so that the volume of the deformation member 20 is reduced, and the deformation member 20 can be switched to the separated state. That is, the deformation member 20 is separated from the groove side wall of the accommodating groove 201, so that the deformation member 20 can be extracted from the accommodating groove 201 or inserted into the accommodating groove 201.

[0066] Therefore, by filling or extracting the filling medium into the deformation member 20 through the pipe assembly 30, the volume change of the deformation member 20 can be flexibly controlled, so that the deformation member 20 can be smoothly switched between the separated state and the connected state, and the transfer of the valve core 200 and the smooth assembly with the valve sleeve 300 are realized.

[0067] In some embodiments, the deformation member 20 has a deformable inner cavity (not shown in the figure), and the pipe assembly 30 is in communication with the inner cavity and used to fill the filling medium into the inner cavity.

[0068] Specifically, the deformation member 20 can be but not limited to a gas bag, and the inside of the gas bag has a deformable inner cavity. The delivery pipe is in communication with the inner cavity, and when the delivery pipe fills the gas into the inner cavity, the volume of the gas bag is increased, so that the gas bag can be stably clamped in the accommodating groove 201. When the delivery pipe extracts the gas in the inner cavity, the volume of the gas bag is reduced, and at this time, the gas bag can be smoothly extracted from the accommodating groove 201 or inserted into the accommodating groove 201.

[0069] In use, the air bag is initially in a small volume, i.e., no gas is filled in the inner cavity. The air bag is inserted into the accommodating groove 201, and then gas is filled into the inner cavity through the delivery pipeline, so that the volume of the air bag is expanded and becomes larger, until the air bag is pressed against the groove side wall of the accommodating groove 201. At this time, the air bag has a friction force with the groove side wall of the accommodating groove 201, and the air bag can move the valve core 200 from the initial position to the upper side of the valve sleeve 300 under the action of the friction force. At this time, the valve sleeve 300 is arranged in the liquid injection hole 400.

[0070] Further, the air bag presses the valve core 200 into the valve sleeve 300, so that the valve core 200 and the valve sleeve 300 are assembled, i.e., the valve core 200 and the valve sleeve 300 cooperate to seal the liquid injection hole 400.

[0071] After the valve core 200 and the valve sleeve 300 are assembled, the gas in the inner cavity is extracted through the delivery pipeline, so that the volume of the air bag becomes smaller, and finally the air bag is separated from the groove side wall of the accommodating groove 201 and is extracted from the accommodating groove 201. At this time, the assembly of a group of valve core 200 and valve sleeve 300 is completed. By repeating the above steps, the assembly of multiple groups of valve core 200 and valve sleeve 300 can be realized.

[0072] It can be understood that the volume of the gas filled into or extracted from the inner cavity can be adjusted according to the volume of the accommodating groove 201 of the valve core 200. When the volume of the accommodating groove 201 is constant, a fixed gas pressure value can be set, i.e., a fixed volume of gas is filled into or extracted from the inner cavity, so that the air bag can be stably clamped in the accommodating groove 201 or the air bag can be smoothly extracted from the accommodating groove 201. In this way, the assembly efficiency of the valve core 200 and the valve sleeve 300 can be further improved.

[0073] Therefore, through the above structure, the volume of the deformation member 20 can be flexibly changed according to the filling condition of the filling medium in the inner cavity, the volume of the deformation member 20 can be better controlled, and the deformation member 20 can better drive the valve core 200 to move and assemble the valve core 200 to the valve sleeve 300.

[0074] As shown in FIGS. Figure 6 and Figure 7 In some embodiments, the main body 10 includes a connecting portion 11 and a pressing portion 12 connected to each other, the pipe assembly 30 is arranged on the connecting portion 11, and the pressing portion 12 is used for pressing the valve core 200 to press the valve core 200 into the valve sleeve 300.

[0075] Specifically, the connecting portion 11 refers to a component that can provide a mounting basis for the pipe assembly 30 and other structures. The pressing portion 12 refers to a component that can press the valve core 200 into the valve sleeve 300 during assembly of the valve core 200 and the valve sleeve 300, so that the assembly between the valve core 200 and the valve sleeve 300 is more stable.

[0076] The pressing part 12 is arranged on the connecting part 11, and the delivery pipe is also arranged on the connecting part 11, and the air bag is communicated with the delivery pipe at one end close to the pressing part 12, and the gas is filled into or extracted from the inner cavity of the air bag through the delivery pipe.

[0077] Further, when the air bag is in the separated state, i.e., the inner cavity of the air bag is not filled with gas, the air bag is inserted into the accommodating groove 201. Then the gas is filled into the inner cavity, so that the volume of the air bag is increased, at this time, the air bag can be stably engaged in the accommodating groove 201, and then the main body 10 is controlled to move and drive the air bag and the valve core 200 to move synchronously until the valve core 200 is inserted into the valve sleeve 300.

[0078] After the valve core 200 is inserted into the valve sleeve 300, the main body 10 drives the valve core 200 to be pressed down, at this time, the pressing part 12 presses against the peripheral wall of the valve core 200, so that the valve core 200 is more stably pressed into the valve sleeve 300, so that the valve core 200 and the valve sleeve 300 can be tightly connected and stably matched.

[0079] After the assembly is completed, the gas in the inner cavity is extracted, so that the volume of the air bag is reduced, and then the air bag is extracted from the accommodating groove 201.

[0080] Therefore, by arranging the pressing part 12, the valve core 200 can be more stably pressed into the valve sleeve 300, so that the valve core 200 and the valve sleeve 300 are more stably assembled.

[0081] In some embodiments, a mounting hole is arranged through the connecting part 11 in the direction in which the deformation piece 20 is inserted into or extracted from the accommodating groove 201, one end of the pipe assembly 30 passes through the mounting hole and communicates with the deformation piece 20, and the pressing part 12 is arranged around the outer periphery of the connecting part 11.

[0082] Specifically, the connecting part 11 can be arranged in a cylindrical structure or a rectangular structure, when the valve sleeve 300 is arranged in the liquid injection hole 400, and the valve core 200 is assembled with the valve sleeve 300, the valve core 200 is inserted downward into the valve sleeve 300. Therefore, when the valve core 200 is placed in the initial position, the slot of the accommodating groove 201 is usually arranged upward. At this time, the direction in which the deformation piece 20 is inserted into or extracted from the accommodating groove 201 is the vertical direction.

[0083] The mounting hole is arranged through the connecting part 11 in the vertical direction, the delivery pipe can be inserted into the mounting hole, and one end close to the pressing part 12 communicates with the inner cavity of the air bag. The pressing part 12 is arranged around the outer periphery of the connecting part 11.

[0084] Therefore, during the process of pressing the valve core 200 into the valve sleeve 300, the pressing part 12 can more stably press against the peripheral wall of the valve core 200, so that the valve core 200 can be stably assembled with the valve sleeve 300.

[0085] In some embodiments, the pipe assembly 30 is movably arranged in the mounting hole in the direction of insertion or extraction of the deformation member 20 into or out of the accommodating groove 201.

[0086] Specifically, the delivery pipe is movably arranged in the mounting hole in the vertical direction, so that the delivery pipe and the main body 10 can be relatively moved, and the abutting portion 12 can better abut against the valve core 200 downward during the process of pressing the valve core 200 into the valve sleeve 300, so that the assembly of the valve core 200 and the valve sleeve 300 is more compact.

[0087] Further, the delivery pipe can be movably arranged in the vertical direction by using a slide rail, a slide groove or other means, but is not limited thereto, and details are not described herein.

[0088] It can be understood that in some other embodiments, the delivery pipe can also be fixedly arranged in the mounting hole, that is, the delivery pipe, the air bag and the main body 10 are simultaneously moved during the process of pressing the valve core 200 into the valve sleeve 300, so as to realize the assembly between the valve core 200 and the valve sleeve 300.

[0089] Through the above structure, the abutting portion 12 can better abut against the valve core 200 downward during the process of pressing the valve core 200 into the valve sleeve 300, so that the assembly of the valve core 200 and the valve sleeve 300 is more compact.

[0090] In some embodiments, the main body 10 is movably arranged in the horizontal direction and / or the vertical direction.

[0091] Specifically, the main body 10 can be moved in the horizontal direction, can be moved in the vertical direction, or can be moved in the horizontal direction and the vertical direction respectively.

[0092] When the main body 10 is moved in the horizontal direction, the valve core 200 can be driven to move from the initial position to the position directly above the valve sleeve 300 and the liquid injection hole 400. When the main body 10 is moved in the vertical direction, the valve core 200 can be driven to move downward to be assembled with the valve sleeve 300, so as to realize the smooth assembly between the valve core 200 and the valve sleeve 300.

[0093] Based on the same concept as the above assembly mechanism 100, the application further provides a valve assembly for sealing the liquid injection hole 400 of the battery monomer under the driving of the above assembly mechanism 100. The valve assembly comprises a valve sleeve 300 and a valve core 200, the valve sleeve 300 is arranged in the liquid injection hole 400, the valve sleeve 300 is provided with a flow passage, and the valve core 200 is provided with an accommodating groove 201 matched with the deformation member 20 and can be driven by the main body 10 and the deformation member 20 to block the flow passage or be extracted from the flow passage.

[0094] Specifically, the valve assembly refers to a structure capable of being assembled in the liquid injection hole 400 of the battery monomer, thereby realizing the sealing or opening of the liquid injection hole 400. The valve assembly generally comprises a valve sleeve 300 and a valve core 200. The valve sleeve 300 is installed in the liquid injection hole 400, and a flow passage is formed through the valve sleeve 300. The valve core 200 is provided with a receiving groove 201, and in addition, the valve core 200 is generally provided with a communication hole. The valve core 200 is inserted into the valve sleeve 300, and by changing the relative position between the valve core 200 and the valve sleeve 300, the communication hole can be communicated with the flow passage, or the communication hole can be staggered with the flow passage.

[0095] When the communication hole is communicated with the flow passage, the flow passage and the communication hole are jointly communicated with the inside and outside of the battery monomer, that is, the opening of the liquid injection hole 400 is realized. When the communication hole is staggered with the flow passage, the flow passage and the communication hole are disconnected, and at this time, the valve core 200 blocks the flow passage, that is, the liquid injection hole 400 is sealed.

[0096] Therefore, when the assembly mechanism 100 provided by the present application is used to assemble the valve assembly, the valve core 200 can be quickly taken and accurately and stably assembled into the valve sleeve 300, thereby improving the assembly efficiency and assembly quality.

[0097] Based on the same concept as the above-mentioned assembly mechanism 100, the present application also provides a battery production system comprising the above-mentioned assembly mechanism 100.

[0098] According to one or more embodiments, when the present application is used, the valve sleeve 300 is first installed in the liquid injection hole 400 of the battery monomer. Then, the main body 10 drives the air bag to move to the upper side of the valve core 200, and then drives the air bag to descend and be inserted into the receiving groove 201 of the valve core 200. At this time, the inner cavity of the air bag is filled with gas through the conveying pipeline, so that the volume of the air bag increases, and the air bag is pressed against the groove side wall of the receiving groove 201. The friction between the air bag and the groove side wall controls the movement of the main body 10. Under the action of the friction, the air bag drives the valve core 200 to move synchronously with the main body 10 to the upper side of the valve sleeve 300.

[0099] The main body 10 drives the air bag to descend until the valve core 200 is inserted into the valve sleeve 300, and the abutting portion 12 is pressed against the peripheral wall of the valve core 200, so that the valve core 200 is pressed into the valve sleeve 300, thereby realizing the assembly of the valve core 200 and the valve sleeve 300.

[0100] Further, the gas in the inner cavity of the air bag is extracted through the conveying pipeline, so that the volume of the air bag decreases until the air bag is separated from the groove side wall of the receiving groove 201. At this time, the air bag is moved upward by the main body 10 to be separated from the valve core 200. By repeating the above operation, the assembly of multiple valve cores 200 and valve sleeves 300 can be realized.

[0101] Any combination of the technical features in the above-described embodiments can be made. For the sake of brevity, the foregoing description is not intended to be exhaustive or to limit the scope of the application to the precise form disclosed. Modifications and alterations can occur to others upon reading the description. It is intended that the scope of the application be measured by the breadth of the appended claims rather than the particulars of the foregoing description.

[0102] The above-described embodiments are merely illustrative of several embodiments of the present application, and the description is relatively specific and detailed, but should not be construed as limiting the scope of the patent application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of the patent of the present application should be subject to the appended claims.

Claims

1. An assembly mechanism, characterized by, The assembly mechanism for assembling a valve core and a valve sleeve comprises: a main body movably arranged; and a deformation member arranged on the main body and having a separated state from the valve core and a connected state with the valve core, the deformation member being configured to be controlled to switch between the separated state and the connected state and drive the valve core to move with the main body in the connected state.

2. The assembly mechanism of claim 1, wherein, The deformation member is arranged to be deformable, and the valve core is provided with a receiving groove; In the separated state, the deformation member is configured to be inserted into or out of the receiving groove; In the connected state, when at least part of the deformation member is located in the receiving groove, the deformation member abuts against a groove side wall of the receiving groove to drive the valve core to move therewith.

3. The assembly mechanism of claim 2, wherein, The assembly mechanism further comprises a pipe assembly connected between the main body and the deformation member and used to fill or extract a filling medium to the deformation member to change the volume of the deformation member.

4. The assembly mechanism of claim 3, wherein, The deformation member has a deformable inner cavity, and the pipe assembly communicates with the inner cavity and is used to fill the filling medium into the inner cavity.

5. The assembly mechanism of claim 3, wherein, The main body comprises a connecting portion and a pressing portion connected with each other, the pipe assembly is arranged on the connecting portion, and the pressing portion is used to press the valve core to press the valve core into the valve sleeve.

6. The assembly mechanism of claim 5, wherein, An installation hole is provided through the connecting portion in a direction in which the deformation member is inserted into or out of the receiving groove, one end of the pipe assembly passes through the installation hole and communicates with the deformation member, and the pressing portion is arranged around an outer periphery of the connecting portion.

7. The assembly mechanism of claim 6, wherein, In the direction in which the deformation member is inserted into or out of the receiving groove, the pipe assembly is movably arranged in the installation hole.

8. The assembly mechanism of claim 1, wherein, The main body is movably arranged in a horizontal direction and / or a vertical direction.

9. A valve assembly for sealing a filling hole of a battery cell under the urging of an assembly mechanism as claimed in any one of claims 1 to 8, characterized in that The valve assembly comprises a valve sleeve and a valve core, the valve sleeve is used to be mounted into the liquid injection hole, the valve sleeve is provided with a flow passage through the valve sleeve, the valve core is provided with a receiving groove matched with the deformation member, and the valve core can block the flow passage or be separated from the flow passage under the driving of the main body and the deformation member.

10. A battery production system characterized by comprising: The assembly mechanism comprises the assembly mechanism according to any one of claims 1-8.

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