Sealing element assembling device and battery production equipment

Abstract

The utility model provides a sealing part assembling device and battery production equipment, the sealing part assembling device comprises a suction assembly and a clamping assembly, the suction assembly comprises a suction part and a negative pressure mechanism, the suction part is provided with a hollow cavity, the hollow cavity penetrates through the suction part, and the negative pressure mechanism is used for providing negative pressure for the hollow cavity, so that the suction part sucks a sealing part. The clamping assembly has a loosening state and a clamping state, in the loosening state, the suction assembly can suck the sealing piece, and in the clamping state, the clamping assembly can clamp the sealing piece. According to the sealing element assembling device provided by the invention, the risk that the electrolyte in the single battery is sucked into the hollow cavity of the suction element and then enters the negative pressure mechanism and the pipeline is reduced, so that the risk that the pipeline of the suction assembly is blocked is reduced, and the reliability of the sealing element assembling device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery production, in particular to a sealing piece assembling device and a battery production equipment. BACKGROUND

[0002] Batteries are widely used in electronic devices, such as mobile phones, notebook computers, electric vehicles, electric cars, electric planes, electric ships, electric toy cars, electric toy ships, electric toy planes, electric tools, and the like.

[0003] As the smallest energy unit in a battery, a battery monomer needs to be equipped with a sealing piece 32 into a liquid injection port for sealing the liquid injection port after injecting electrolyte through the liquid injection port in the production process. However, the sealing piece assembling device is prone to pipe blockage during use, which seriously affects the reliability of the sealing piece assembling device. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a sealing piece assembling device and a battery production equipment to improve the reliability of the sealing piece assembling device.

[0005] The present application is achieved by the following technical solutions:

[0006] In a first aspect, the sealing piece assembling device provided by the embodiments of the present application is used to install a sealing piece into a liquid injection port of a battery monomer. The sealing piece assembling device includes a suction assembly and a clamping assembly. The suction assembly includes a suction piece and a negative pressure mechanism. The suction piece has a hollow cavity that penetrates the suction piece. The negative pressure mechanism is used to provide negative pressure to the hollow cavity to enable the suction piece to suck the sealing piece. The clamping assembly has a loosening state and a clamping state. In the loosening state, the suction assembly can suck the sealing piece. In the clamping state, the clamping assembly can clamp the sealing piece.

[0007] The sealing piece assembling device provided by the embodiments of the present application includes a suction assembly and a clamping assembly. During the process of installing the sealing piece into the liquid injection port of the battery monomer, the suction assembly can flexibly and reliably perform the action of sucking the sealing piece. After the sealing piece is sucked, the suction assembly can cancel the negative pressure suction force on the sealing piece. Only the clamping assembly clamps the sealing piece, and the sealing piece can be pre-pressed into the liquid injection port only under the clamping action of the clamping assembly. In this way, during the process of pre-pressing the sealing piece into the liquid injection port, the negative pressure mechanism does not need to provide negative pressure to the hollow cavity of the suction piece, which is beneficial to reduce the risk of the electrolyte in the battery monomer being sucked into the hollow cavity of the suction piece, and then entering the negative pressure mechanism and the pipeline, thereby reducing the risk of the pipeline of the suction assembly being blocked, and improving the reliability of the sealing piece assembling device.

[0008] According to some embodiments of the present application, the clamping assembly comprises a clamping member and a driving member, the clamping member has a loosening state and a clamping state, and the driving member is configured to drive the clamping member to switch between the loosening state and the clamping state.

[0009] In the above scheme, the clamping assembly comprising the driving member and the clamping member facilitates the clamping member to switch between the loosening state and the clamping state, thereby facilitating the suction assembly to suck the sealing member and facilitating the clamping assembly to clamp the sealing member.

[0010] According to some embodiments of the present application, the clamping member comprises an elastic member, the elastic member is connected to the suction member, in a natural state, the elastic member is in the loosening state, and the driving member is configured to drive the clamping member to switch from the loosening state to the clamping state.

[0011] In the above scheme, the clamping member comprising the elastic member and the driving member configured to drive the elastic member to switch from the loosening state to the clamping state is conducive to simplifying the structure of the clamping assembly and improving the reliability of the clamping assembly in clamping the sealing member.

[0012] According to some embodiments of the present application, the elastic member comprises a spring piece, the spring piece is cantilevered and has a fixed end and a free end, the fixed end is connected to the suction member, and the driving member is configured to drive the free end to rotate around the fixed end to switch the clamping member from the loosening state to the clamping state.

[0013] In the above scheme, the elastic member comprising the spring piece and the spring piece being cantilevered facilitates the driving member to drive the spring piece to switch from the loosening state to the clamping state, and is conducive to simplifying the structure of the clamping assembly.

[0014] According to some embodiments of the present application, the elastic member comprises a plurality of spring pieces, and the plurality of spring pieces are arranged at intervals around the suction member.

[0015] In the above scheme, it is conducive to improving the uniformity of the clamping force distribution of the clamping member on the sealing member, reducing the risk of the sealing member being inclined, improving the coaxiality of the sealing member and the liquid injection port during the process of pre-pressing the sealing member into the liquid injection port, and thereby improving the reliability of the sealing member installation.

[0016] According to some embodiments of the present application, the spring piece has a first arc surface, the first arc surface is located on the side of the spring piece facing the suction member, and the first arc surface is configured to be in contact with the surface of the sealing member.

[0017] In the above scheme, the spring piece is provided with the first arc surface, so that the first arc surface is configured to be in contact with the surface of the sealing member, and thus in the clamping state, it is conducive to increasing the area of the spring piece in contact with the sealing member, improving the clamping stability of the spring piece on the sealing member, reducing the risk of the sealing member being inclined, and improving the reliability of the sealing member installation.

[0018] According to some embodiments of the present application, the suction member has a first plane, and the hollow cavity penetrates through the first plane, and the first plane is used to be attached to the sealing member.

[0019] In the above scheme, the suction member has a first plane, which is beneficial to improve the attachment area of the suction member and the sealing member, thereby improving the reliability of the suction member to suck the sealing member. And it is beneficial to improve the coaxiality of the sealing member and the liquid injection port, so as to improve the reliability of the sealing member assembly.

[0020] According to some embodiments of the present application, the suction member is a hollow column, and the first plane is perpendicular to the central axis of the suction member.

[0021] In the above scheme, the suction member is a column, and the first plane is perpendicular to the central axis of the suction member, which is beneficial to improve the coaxiality of the sealing member and the liquid injection port during the installation process, and can be adjusted at one time and used multiple times, which is beneficial to improve the efficiency of the sealing member assembly.

[0022] According to some embodiments of the present application, the suction member includes a first sub-section and a second sub-section, the first sub-section and the second sub-section are arranged along the axial direction of the suction member, the outer diameter of the first sub-section is smaller than the outer diameter of the second sub-section, and the first plane is arranged at one end of the first sub-section away from the second sub-section. The elastic member is arranged on the outer periphery side of the first sub-section and beyond the one end of the first sub-section away from the second sub-section.

[0023] In the above scheme, the elastic member is conveniently arranged, which is beneficial to save space and facilitate the clamping of the sealing member by the elastic member.

[0024] According to some embodiments of the present application, the elastic member includes a plurality of elastic pieces, and the plurality of elastic pieces are uniformly and spacedly arranged around the central axis of the first sub-section.

[0025] In the above scheme, the plurality of elastic pieces are uniformly and spacedly arranged around the central axis of the first sub-section, which is beneficial to improve the coaxiality of the sealing member and the suction member in the clamping state, thereby improving the coaxiality of the sealing member and the liquid injection port, and improving the sealing effect of the sealing member on the liquid injection port after being pre-pressed into the sealing member.

[0026] According to some embodiments of the present application, the elastic member has a guide portion on the side away from the second sub-section, and the guide portion has a first guide surface arranged towards the central axis of the suction member, and the first guide surface is arranged to be inclined towards the direction away from the central axis of the suction member.

[0027] In the above scheme, the elastic member has a guide portion with a first guide surface, which is beneficial to the suction member to more smoothly suck the sealing member, and is beneficial to improve the coaxiality of the sealing member and the suction member, thereby facilitating the alignment of the sealing member and the liquid injection port.

[0028] According to some embodiments of the present application, the driving member comprises a sleeve, the sleeve is sleeved on the suction member and the elastic sheet, and the sleeve is axially movable relative to the suction member to drive the elastic sheet to switch between the released state and the clamped state.

[0029] In the above scheme, by arranging that the driving member comprises a sleeve, and the sleeve is sleeved on the suction member and the elastic sheet, the sleeve is driven to move back and forth along the axial direction to drive the elastic sheet to switch between the released state and the clamped state, which is conducive to simplifying the structure of the driving member and improving the sensitivity and reliability of the clamping assembly in switching between the released state and the clamped state.

[0030] According to some embodiments of the present application, the sleeve is in sliding fit with the second sub-section, and in the clamped state, the sleeve is in abutment with the elastic sheet.

[0031] In the above scheme, the stability of the sleeve in axial movement is improved, the reliability of the elastic member in switching between the clamped state and the released state is improved, and the clamping force of the elastic sheet on the sealing member is improved, thereby improving the reliability of the clamping member in clamping the sealing member.

[0032] In a second aspect, the embodiments of the present application provide a battery production equipment comprising the sealing member assembling device provided by any of the above embodiments.

[0033] The battery production equipment provided by the embodiments of the present application has the same technical effects as the battery production equipment provided by any of the above embodiments, and thus repeated description is omitted here.

[0034] Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will become apparent to those skilled in the art upon examination of the following and / or can be learned by practice of the application. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0036] Figure 1 Part structure schematic diagram of the sealing member assembling device provided by the embodiments of the present application in working state;

[0037] Figure 2 Front view of part structure of the sealing member assembling device provided by the embodiments of the present application in working state;

[0038] Figure 3 For Figure 2 Schematic diagram of cross-sectional structure along A-A;

[0039] Figure 4 Part structure schematic diagram of the sealing assembly device provided by the embodiment of the present application;

[0040] Figure 5 Front view of part structure of the sealing assembly device provided by the embodiment of the present application;

[0041] Figure 6 For Figure 5 Schematic diagram of sectional structure along B-B.

[0042] In the drawings, the drawings are not necessarily drawn according to the scale.

[0043] Explanation of reference signs:

[0044] 1-sealing assembly device;

[0045] 10-suction assembly; 11-suction piece; 11a-hollow cavity; 111-first sub-section; 111a-first plane; 112-second sub-section; 12-negative pressure mechanism; 13-pipeline;

[0046] 20-clamping assembly; 21-clamping piece; 211-elastic piece; 2111-elastic sheet; 2111a-fixed end; 2111b-free end; 2111c-first arc surface; 2112-guide part; 2112a-first guide surface; 22-driving piece; 221-sleeve;

[0047] 30-battery monomer; 31-outer shell; 31a-liquid injection port; 32-sealing piece;

[0048] X-axial. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0050] Unless otherwise defined, all technical and scientific terms used in the application have the same meanings as those commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "including," "comprising," or "having" in the description of the application herein is not intended to exclude or require the presence of any

[0051] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all referring to a common embodiment, or an embodiment that is independent of all other embodiments. One of ordinary skill in the art will readily recognize from the disclosure herein, that the embodiments described herein can be incorporated into other embodiments.

[0052] In the description of the application, it is necessary to explain that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "attaching" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0053] The term "and / or" in the application is only a description of the association relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0054] "Multiple" appearing in the application refers to more than two (including two), and similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0055] The battery monomer 30 needs to inject electrolyte into the outer shell 31 through the liquid injection port 31a on the outer shell 31 during production, and after the electrolyte is input, the sealing piece 32 is assembled into the liquid injection port 31a by using the sealing piece assembly device 1 to seal the outer shell 31.

[0056] However, in the related art, the sealing member assembly device usually uses a vacuum suction nozzle to suck the sealing member 32, and the sealing member 32 is pre-pressed into the liquid injection port 31a under the suction of the vacuum suction nozzle. In this way, during the process of pre-pressing the sealing member 32 into the liquid injection port 31a under the clamping action of the vacuum suction nozzle, the related negative pressure equipment continuously provides negative pressure to the vacuum suction to maintain the suction force on the sealing member 32. In this way, the electrolyte inside the battery monomer 30 may be sucked into the vacuum suction nozzle and enter the related negative pressure pipeline under the negative pressure action of the negative pressure equipment, which easily causes the negative pressure pipeline to be blocked, thereby seriously affecting the working reliability of the sealing member assembly device.

[0057] Therefore, in a first aspect, as shown in Figure 1 、 Figure 2 and Figure 3 , the embodiments of the present application provide a sealing member assembly device 1 for installing a sealing member 32 into a liquid injection port 31a of a battery monomer 30. The sealing member assembly device 1 comprises a suction assembly 10 and a clamping assembly 20. The suction assembly 10 comprises a suction member 11 and a negative pressure mechanism 12. The suction member 11 has a hollow cavity 11a extending through the suction member 11. The negative pressure mechanism 12 is configured to provide negative pressure to the hollow cavity 11a so that the suction member 11 sucks the sealing member 32. The clamping assembly 20 has a loosened state and a clamped state. In the loosened state, the suction assembly 10 can suck the sealing member 32. In the clamped state, the clamping assembly 20 can clamp the sealing member 32.

[0058] Optionally, the sealing member 32 can be a glue nail or the like. After the sealing member 32 is pre-pressed into the liquid injection port 31a, the liquid injection port 31a can be sealed to reduce the risk of electrolyte leakage in the battery monomer 30.

[0059] The sealing member assembly device 1 can comprise a mechanical arm. The suction assembly 10 and the clamping assembly 20 can be arranged on the mechanical arm of the sealing member assembly device 1, so that the suction, transfer, alignment to the liquid injection port 31a, and pre-pressing into the liquid injection port 31a of the sealing member 32 can be realized by the movement of the mechanical arm.

[0060] The suction assembly 10 comprises the suction member 11 and the negative pressure mechanism 12. The negative pressure mechanism 12 can comprise a vacuum pump or the like, and can be in communication with the hollow cavity 11a through a pipeline 13 to provide negative pressure to the hollow cavity 11a of the suction member 11, so that the suction member 11 sucks the sealing member 32.

[0061] It can be understood that the hollow cavity 11a can be arranged through one surface of the suction member 11.

[0062] Specifically, the sealing member 32 can further comprise a screen. The screen can be used to hold the sealing member 32. The screen can have a groove matching the shape of the sealing member 32 to stably position the sealing member 32.

[0063] The suction assembly 10 can be moved to the position of the screen by the mechanical arm, and the suction member 11 is attached to the sealing member 32. Then, the negative pressure mechanism 12 works and provides negative pressure to the hollow cavity 11a. The sealing member 32 is sucked by the suction member 11 under the action of the negative pressure. After the suction action of the sealing member 32 is completed, the suction assembly 10 is moved to the sealing member 32 assembly position by the mechanical arm. Then, the clamping assembly 20 is driven to be in the clamping state to clamp the sealing member 32 by the clamping assembly 20. In the case that the clamping assembly 20 is in the clamping state, the negative pressure mechanism 12 can stop working and stop providing negative pressure to the hollow cavity 11a. At this time, the sealing member 32 can be only clamped by the clamping assembly 20. When there is no negative pressure in the hollow cavity 11a, the sealing member 32 can be pre-pressed into the liquid injection port 31a.

[0064] Since the negative pressure mechanism 12 can not work and the hollow cavity 11a can have no negative pressure during the process of pre-pressing the sealing member 32 into the liquid injection port 31a, the electrolyte in the battery monomer 30 will not be sucked into the hollow cavity 11a due to the negative pressure in the hollow cavity 11a during the process of pre-pressing the sealing member 32 into the liquid injection port 31a. This is conducive to reducing the risk of the electrolyte in the battery monomer 30 being sucked into the hollow cavity 11a and the pipeline 13, and reducing the risk of the pipeline 13 being blocked.

[0065] Optionally, the clamping assembly 20 can be connected to the suction assembly 10 and move with the suction assembly 10 and the mechanical arm. Of course, the clamping assembly 20 can have no connection relationship with the suction assembly 10, and the clamping assembly 20 can be used to clamp the sealing member 32 after the clamping assembly 20 clamps the sealing member 32 to the position.

[0066] The clamping assembly 20 has a loosening state and a clamping state, and the clamping assembly 20 can be converted between the loosening state and the clamping state. Optionally, the conversion of the clamping assembly 20 between the loosening state and the clamping state can be performed by a related driving mechanism or under the action of its own elastic potential energy and the like. For example, the clamping assembly 20 can be converted from the loosening state to the clamping state by an external force, and can be converted from the clamping state to the loosening state under the action of the external force or its own elasticity.

[0067] The clamping assembly 20 can be any suitable structure, for example, the clamping assembly 20 can be a structure such as an elastic clamp that can clamp the sealing member 32 and provide a certain clamping force.

[0068] Therefore, the clamping assembly 20 in the loosened state can use the suction assembly 10 to perform the action of sucking the sealing piece 32, so as to improve the reliability and sensitivity of the sealing piece 32 sucking action, and after the sealing piece 32 sucking work is completed and before the sealing piece 32 is pre-pressed into the liquid injection port 31a, the clamping assembly 20 can be converted from the loosened state to the clamped state, so as to clamp the sealing piece 32 by the clamping assembly 20. The clamping assembly 20 in the clamped state, the suction assembly 10 can not work, and the negative pressure mechanism 12 can no longer provide negative pressure to the hollow cavity 11a. In this way, under the cooperation of the suction assembly 10 and the clamping assembly 20, the sealing piece assembly device 1 completes the action of sucking the sealing piece 32 and pre-pressing the sealing piece 32 into the liquid injection port 31a.

[0069] The sealing piece assembly device 1 provided by the embodiment of the present application can flexibly and reliably perform the action of sucking the sealing piece 32 by the suction assembly 10 in the process of assembling the sealing piece 32 into the liquid injection port 31a of the battery monomer 30, and after the sealing piece 32 is sucked, the negative pressure sucking force of the suction assembly 10 on the sealing piece 32 can be removed, and only the clamping assembly 20 can clamp the sealing piece 32, and the sealing piece 32 can be pre-pressed into the liquid injection port 31a only under the clamping action of the clamping assembly 20. In this way, in the process of pre-pressing the sealing piece 32 into the liquid injection port 31a, the negative pressure mechanism 12 can not need to provide negative pressure to the hollow cavity 11a of the suction piece 11, which is beneficial to reduce the risk that the electrolyte in the battery monomer 30 is sucked into the hollow cavity 11a of the suction piece 11 and then enters the pipeline 13 of the negative pressure mechanism 12, thereby reducing the risk of blocking the pipeline 13 of the suction assembly 10, and improving the reliability of the sealing piece assembly device 1.

[0070] In some embodiments, as shown in Figure 2 and Figure 3 The clamping assembly 20 includes a clamping piece 21 and a driving piece 22, the clamping piece 21 has a loosened state and a clamped state, and the driving piece 22 is used to drive the clamping piece 21 to convert between the loosened state and the clamped state.

[0071] The structure of the clamping piece 21 can be any structure that can provide clamping force to the sealing piece 32, and the clamping piece 21 can have a certain elasticity.

[0072] The clamping piece 21 in a natural state can be in a clamped state or a loosened state, in other words, the clamping piece 21 can be in a clamped state without external force, or the clamping piece 21 can be in a loosened state.

[0073] The driving member 22 drives the clamping member 21 to switch between the loosened state and the clamped state. Alternatively, the driving member 22 can drive the clamping member 21 to switch from the loosened state to the clamped state, and after the driving force of the driving member 22 is removed, the clamping member 21 naturally switches from the clamped state to the loosened state under the action of the elastic force of the clamping member 21.

[0074] Therefore, the clamping assembly 20 is provided with the driving member 22 and the clamping member 21, which facilitates the clamping member 21 to switch between the loosened state and the clamped state, and further facilitates the suction assembly 10 to suck the sealing member 32 and the clamping assembly 20 to clamp the sealing member 32.

[0075] In some embodiments, as shown in Figure 3 , Figure 4 The clamping member 21 includes an elastic member 211, and the elastic member 211 is connected to the suction member 11. In a natural state, the elastic member 211 is in the loosened state, and the driving member 22 is used to drive the clamping member 21 to switch from the loosened state to the clamped state.

[0076] The clamping member 21 includes an elastic member 211. Alternatively, the clamping member 21 can include one, two or more elastic members 211. In a natural state, the elastic member 211 can be in the loosened state, and the elastic member 211 will not clamp the sealing member 32 without external force. The elastic member 211 is connected to the suction member 11, and the elastic member 211 moves with the suction member 11.

[0077] The driving member 22 can drive the elastic member 211 to switch from the loosened state to the clamped state and store elastic potential energy. After the sealing member 32 is pre-pressed into the sealing member 32, the driving member 22 removes the driving force on the elastic member 211, and the elastic member 211 returns to the clamped state from the loosened state under the action of the elastic potential energy of the elastic member 211.

[0078] Therefore, the clamping member 21 is provided with the elastic member 211, and the driving member 22 is provided to drive the elastic member 211 to switch from the loosened state to the clamped state, which is beneficial to simplify the structure of the clamping assembly 20 and improve the reliability of the clamping assembly 20 to clamp the sealing member 32.

[0079] In some embodiments, as shown in Figure 4 , Figure 5 and Figure 6 The elastic member 211 includes a spring plate 2111, the spring plate 2111 is cantilevered and has a fixed end 2111a and a free end 2111b, the fixed end 2111a is connected to the suction member 11, and the driving member 22 is used to drive the free end 2111b to rotate around the fixed end 2111a to switch the clamping member 21 from the loosened state to the clamped state.

[0080] The elastic piece 211 is in a cantilever state, and the fixed end 2111a of the elastic piece 211 is connected to the suction piece 11. The fixed end 2111a of the elastic piece 211 can be connected to the suction piece 11 by means of threaded connection, clamping or pin connection.

[0081] The free end 2111b of the elastic piece 211 can be in a suspended state. In the case of suction of the sealing piece 32 by the suction piece 11, the elastic piece 211 is spaced apart from the sealing piece 32. Under the driving action of the driving piece 22, the free end 2111b rotates around the fixed end 2111a, the distance between the elastic piece 211 and the sealing piece 32 gradually decreases, until the elastic piece 211 is attached to the sealing piece 32 and clamps the sealing piece 32.

[0082] After the sealing piece 32 is loaded into the liquid injection port 31a, the force of the driving piece 22 on the elastic piece 211 is removed, and the elastic piece 211 rotates around the fixed end 2111a under the action of its own elasticity, so that the elastic piece 211 moves away from the sealing piece 32. In this way, the elastic piece 211 is converted from the clamping state to the release state.

[0083] Therefore, the elastic piece 211 is provided with the elastic piece 2111 in a cantilever state, which facilitates the driving of the elastic piece 211 by the driving piece 22 from the release state to the clamping state, and is conducive to simplifying the structure of the clamping assembly 20.

[0084] In some embodiments, as shown in Figure 4 , Figure 5 and Figure 6 , the elastic piece 211 includes a plurality of elastic pieces 2111, and the plurality of elastic pieces 2111 are spaced apart around the suction piece 11.

[0085] The elastic piece 211 includes a plurality of elastic pieces 2111, and the plurality of elastic pieces 2111 are spaced apart around the suction piece 11. In the clamping state, the plurality of elastic pieces 2111 together provide a clamping force to the sealing piece 32, and the clamping force of the plurality of elastic pieces 2111 to the sealing piece 32 is distributed along the circumferential side of the sealing piece 32. In this way, it is conducive to improving the uniformity of the clamping force distribution of the clamping piece 21 to the sealing piece 32, reducing the risk of deflection of the sealing piece 32, improving the coaxiality of the sealing piece 32 and the liquid injection port 31a during the pre-pressing of the sealing piece 32 into the liquid injection port 31a, and further improving the reliability of the installation of the sealing piece 32.

[0086] In some embodiments, as shown in Figure 4 , the elastic piece 2111 has a first arc surface 2111c on the side of the elastic piece 2111 facing the suction piece 11, and the first arc surface 2111c is used to attach to the surface of the sealing piece 32.

[0087] The side surface of the sealing member 32 is generally arc-shaped, and therefore the elastic piece 2111 is provided with a first arc-shaped surface 2111c, which is capable of abutting against the sealing member 32 in the clamping state.

[0088] Optionally, the curvature of the first arc-shaped surface 2111c can be set according to the surface profile of the sealing member 32, so that the first arc-shaped surface 2111c of the elastic piece 2111 abuts against at least part of the surface of the sealing member 32 in the clamping state.

[0089] Therefore, the elastic piece 2111 is provided with the first arc-shaped surface 2111c, which is used to abut against the surface of the sealing member 32, so that the area of abutment between the elastic piece 2111 and the sealing member 32 is increased in the clamping state, the clamping stability of the elastic piece 2111 to the sealing member 32 is improved, the inclination of the sealing member 32 is reduced, and the reliability of the installation of the sealing member 32 is improved.

[0090] In some embodiments, as shown in Figure 5 and Figure 6 the suction piece 11 has a first plane 111a, and the hollow cavity 11a penetrates through the first plane 111a, and the first plane 111a is used to abut against the sealing member 32.

[0091] Therefore, the first plane 111a of the suction piece 11 can abut against the sealing member 32 during the suction of the sealing member 32, so that the abutment area between the suction piece 11 and the sealing member 32 is increased, and the negative pressure is provided through the hollow cavity 11a, so as to facilitate the suction of the sealing member 32.

[0092] The posture of the sealing member 32 can be adjusted through the abutment between the first plane 111a and the sealing member 32, so as to improve the coaxiality between the sealing member 32 and the liquid injection port 31a during the installation of the sealing member 32 into the liquid injection port 31a.

[0093] Therefore, the suction piece 11 is provided with the first plane 111a, which is capable of increasing the abutment area between the suction piece 11 and the sealing member 32, thereby improving the reliability of the suction of the sealing member 32 by the suction piece 11, and improving the coaxiality between the sealing member 32 and the liquid injection port 31a, thereby improving the reliability of the installation of the sealing member 32.

[0094] In some embodiments, as shown in Figure 5 and Figure 6 the suction piece 11 is hollow and columnar, and the first plane 111a is perpendicular to the central axis of the suction piece 11.

[0095] It can be understood that before the sealing member 32 is installed into the liquid injection port 31a, the sealing member 32 and the liquid injection port 31a need to be aligned so that the sealing member 32 has a high coaxiality with the liquid injection port 31a. After the suction member 11 sucks the sealing member 32, the sealing member 32 is attached to the first plane 111a, and the central axis of the sealing member 32 is perpendicular to the first plane 111a.

[0096] The suction member 11 is in a hollow columnar shape, and the first plane 111a is perpendicular to the central axis of the suction member 11. Therefore, after the suction member 11 sucks the sealing member 32, the sealing member 32 is coaxially arranged with the suction member 11. In this way, during the installation of the suction member 11, the coaxiality of the suction member 11 and the liquid injection port 31a can be adjusted to improve the coaxiality of the sealing member 32 and the liquid injection port 31a. In this way, the coaxiality of the sealing member 32 and the liquid injection port 31a can be improved by adjusting the coaxiality of the suction member 11 and the liquid injection port 31a once.

[0097] Therefore, the suction member 11 is in a columnar shape, and the first plane 111a is perpendicular to the central axis of the suction member 11, which is beneficial to improve the coaxiality of the sealing member 32 and the liquid injection port 31a during the installation of the sealing member 32. Moreover, the coaxiality can be adjusted once and used multiple times, which is beneficial to improve the efficiency of the assembly of the sealing member 32.

[0098] In some embodiments, as shown in Figs. 1 and 2, the suction member 11 includes a first sub-section 111 and a second sub-section 112, the first sub-section 111 and the second sub-section 112 are arranged along the axial direction X of the suction member 11, the outer diameter of the first sub-section 111 is smaller than the outer diameter of the second sub-section 112, and the first plane 111a is arranged at one end of the first sub-section 111 which is away from the second sub-section 112. Figure 5 and Figure 6 The suction member 11 includes the first sub-section 111 and the second sub-section 112 which are arranged along the axial direction X, and the outer diameter of the first sub-section 111 is smaller than the outer diameter of the second sub-section 112. Therefore, there is a certain space on the outer periphery of the first sub-section 111, which is beneficial to arrange the elastic member 211.

[0099] The suction member 11 includes the first sub-section 111 and the second sub-section 112 which are arranged along the axial direction X, and the outer diameter of the first sub-section 111 is smaller than the outer diameter of the second sub-section 112. Therefore, there is a certain space on the outer periphery of the first sub-section 111, which is beneficial to arrange the elastic member 211.

[0100] The elastic member 211 can be a spring 2111. The elastic member 211 is arranged on the outer periphery of the first sub-section 111, so that the elastic member 211 can be arranged on the outer periphery of the first sub-section 111 which is radially smaller than the outer periphery of the second sub-section 112. Moreover, the elastic member 211 is arranged to protrude from one end of the first sub-section 111 which is away from the second sub-section 112. Therefore, the part of the elastic member 211 which protrudes from the first sub-section 111 can be attached to the sealing member 32 to clamp the sealing member 32.

[0101] Therefore, in this way, the elastic member 211 is arranged conveniently, the space is saved, and the elastic member 211 clamps the sealing member 32.

[0102] In some embodiments, as shown in Figure 4 and Figure 6 , the elastic member 211 includes a plurality of elastic sheets 2111, and the plurality of elastic sheets 2111 are arranged uniformly and spaced apart around the central axis of the first sub-section 111.

[0103] The plurality of elastic sheets 2111 are arranged uniformly and spaced apart around the central axis of the first sub-section 111, so that in the clamping state, the clamping force of the plurality of elastic sheets 2111 on the sealing member 32 is uniformly distributed along the circumference of the sealing member 32, which is conducive to improving the balance of the clamping force of the elastic member 211 on the sealing member 32. In the clamping state, the sealing member 32 has a tendency to move towards the center, which is conducive to improving the coaxiality of the sealing member 32 and the suction member 11.

[0104] Therefore, the plurality of elastic sheets 2111 are arranged uniformly and spaced apart around the central axis of the first sub-section 111, which is conducive to improving the coaxiality of the sealing member 32 and the suction member 11 in the clamping state, and further conducive to improving the coaxiality of the sealing member 32 and the liquid injection port 31a. After the sealing member 32 is pre-pressed, it is conducive to improving the sealing effect of the sealing member 32 on the liquid injection port 31a.

[0105] In some embodiments, as shown in Figure 4 , Figure 5 and Figure 6 , the side of the elastic member 211 away from the second sub-section 112 has a guide portion 2112, and the guide portion 2112 has a first guide surface 2112a arranged towards the central axis of the suction member 11, and the first guide surface 2112a is arranged obliquely towards the central axis of the suction member 11 in the direction away from the second sub-section 112.

[0106] The elastic member 211 can be an elastic sheet 2111, and the guide portion 2112 can be a chamfer on the side of the end of the elastic member 211 away from the second sub-section 112 towards the central axis of the suction member 11.

[0107] The first guide surface 2112a can be a plane or an arc surface. In the process of the suction member 11 sucking the sealing member 32, the first guide surface 2112a can be arranged to provide a certain guided movement for the sealing member 32, so as to correct the posture of the sealing member 32 relative to the suction member 11, so that the sealing member 32 is more smoothly sucked by the suction member 11, and the coaxiality of the sealing member 32 and the suction member 11 is improved.

[0108] Therefore, the elastic member 211 is provided with a guide portion 2112 having a first guide surface 2112a, so that the suction member 11 can more smoothly suck the sealing member 32, and the coaxiality of the sealing member 32 and the suction member 11 is improved, and the alignment of the sealing member 32 and the liquid injection port 31a is facilitated.

[0109] In some embodiments, as shown in Figure 5 and Figure 6 The driving member 22 includes a sleeve 221 sleeved on the suction member 11 and the elastic sheet 2111 and capable of moving along the axial direction X relative to the suction member 11 to drive the elastic sheet 2111 to switch between the released state and the clamped state.

[0110] The sleeve 221 can move along the axial direction X relative to the suction member 11 and the elastic sheet 2111 to drive the elastic sheet 2111 to rotate about the fixed end 2111a. When the sleeve 221 moves along the axial direction X towards the elastic sheet 2111, the sleeve 221 gradually cooperates with the elastic sheet 2111 to drive the elastic sheet 2111 to rotate towards the sealing member 32 until the elastic sheet 2111 clamps the sealing member 32, i.e., the clamping member 21 is switched from the released state to the clamped state.

[0111] After the sealing member 32 is pre-pressed into the liquid injection port 31a, the sleeve 221 can be driven to move along the axial direction X away from the elastic sheet 2111, so that the elastic sheet 2111 naturally rebounds under the action of its own elasticity and rotates about the fixed end 2111a away from the sealing member 32 until the clamping member 21 releases the sealing member 32, i.e., the clamping member 21 is switched from the clamped state to the released state.

[0112] That is, the elastic sheet 2111 is switched between the clamped state and the released state by the reciprocating movement of the sleeve 221 along the axial direction X. It can be understood that the reciprocating movement of the sleeve 221 along the axial direction X can be driven by a hydraulic cylinder or a motor.

[0113] By providing the driving member 22 with the sleeve 221 and sleeving the sleeve 221 on the suction member 11 and the elastic sheet 2111, the elastic sheet 2111 is driven to switch between the released state and the clamped state by the reciprocating movement of the sleeve 221 along the axial direction X, which is beneficial to simplify the structure of the driving member 22 and improve the sensitivity and reliability of the clamping assembly 20 in switching between the released state and the clamped state.

[0114] In some embodiments, as shown in Figure 6 The sleeve 221 is in sliding cooperation with the second sub-section 112, and in the clamped state, the sleeve 221 is in close contact with the elastic sheet 2111.

[0115] The sleeve 221 is in sliding fit with the second sub-section 112, so that the sleeve 221 is always in fit with the second sub-section 112 during the reciprocating movement along the axial direction X, and the second sub-section 112 can provide certain guiding effect for the movement of the sleeve 221 along the axial direction X, which is beneficial to improve the stability of the operation of the sleeve 221.

[0116] In the clamping state, the sleeve 221 is in fit with the elastic piece 2111, and the sleeve 221 can provide certain extrusion force for the elastic piece 2111, so that the elastic piece 2111 clamps the sealing member 32 more stably.

[0117] Therefore, the arrangement is beneficial to improve the stability of the operation of the sleeve 221 along the axial direction X, to improve the reliability of the conversion of the elastic piece 211 between the clamping state and the releasing state, and is beneficial to improve the clamping force of the elastic piece 2111 on the sealing member 32, and further is beneficial to improve the reliability of the clamping of the clamping piece 21 on the sealing member 32.

[0118] In the second aspect, the embodiments of the present application provide a battery production equipment including the sealing member assembling device 1 provided by any of the above embodiments.

[0119] The battery production equipment provided by the embodiments of the present application has the same technical effects as the battery production equipment provided by any of the above embodiments, and thus the repeated description is omitted here.

[0120] In some embodiments, as Figures 1 to 6As shown, the sealing member assembling device 1 provided by the embodiment of the present application comprises a suction assembly 10 and a clamping assembly 20. The suction assembly 10 comprises a suction member 11 and a negative pressure mechanism 12, the suction member 11 has a hollow cavity 11a, and the negative pressure mechanism 12 is configured to provide negative pressure to the hollow cavity 11a so that the suction member 11 can suck the sealing member 32. The suction assembly 10 is in a hollow columnar shape, and the suction assembly 10 comprises a first sub-section 111 and a second sub-section 112 arranged along an axial direction X, and the hollow cavity 11a is arranged along the axial direction X and penetrates through the first sub-section 111 and the second sub-section 112. The outer diameter of the first sub-section 111 is smaller than the outer diameter of the second sub-section 112, and the first sub-section 111 has a first flat surface 111a arranged at one end of the first sub-section 111 away from the second sub-section 112, and the first flat surface 111a is perpendicular to the central axis of the suction member 11. The clamping assembly 20 comprises a plurality of elastic sheets 2111 and a sleeve 221, the elastic sheets 2111 have a released state and a clamped state, and the sleeve 221 is configured to drive the clamping member 21 to switch between the released state and the clamped state. The elastic sheet 2111 is in a cantilever shape and has a fixed end 2111a and a free end 2111b, the fixed end 2111a is connected to the suction member 11, the elastic sheet 2111 is arranged at the outer circumferential side of the first sub-section 111 and beyond one end of the first sub-section 111 away from the second sub-section 112, and a plurality of elastic sheets 2111 are uniformly spaced along the central axis of the suction member 11. The elastic sheet 2111 has a first arc-shaped surface 2111c, the first arc-shaped surface 2111c is located at the side of the elastic sheet 2111 facing the first sub-section 111, and the first arc-shaped surface 2111c is configured to be in contact with the surface of the sealing member 32. The side of the elastic sheet 2111 away from the second sub-section 112 has a guide portion 2112, the guide portion 2112 has a first guide surface 2112a arranged towards the central axis of the suction member 11, and the first guide surface 2112a is arranged in a direction away from the central axis. The sleeve 221 is sleeved on the suction member 11 and the elastic sheet 2111 and can move along the axial direction X relative to the suction member 11 so as to drive the elastic sheet 2111 to switch between the released state and the clamped state. The sleeve 221 is in sliding fit with the second sub-section 112, and in the clamped state, the sleeve 221 is in contact with the elastic sheet 2111.

[0121] The sealing piece assembling device 1 provided by the embodiment of the present application comprises the suction assembly 10 and the clamping assembly 20, in the process of assembling the sealing piece 32 into the liquid injection port 31a of the battery monomer 30, the suction assembly 10 can be used to flexibly and reliably suck the sealing piece 32, and after the suction of the sealing piece 32 is completed, the suction assembly 10 can be used to cancel the negative pressure suction force on the sealing piece 32, only the clamping assembly 20 is used to clamp the sealing piece 32, and the sealing piece 32 can be pre-pressed into the liquid injection port 31a only under the clamping action of the clamping assembly 20. In this way, in the process of pre-pressing the sealing piece 32 into the liquid injection port 31a, the negative pressure mechanism 12 does not need to provide negative pressure to the hollow cavity 11a of the suction piece 11, which is beneficial to reduce the risk that the electrolyte in the battery monomer 30 is sucked into the hollow cavity 11a of the suction piece 11, and then enters the negative pressure mechanism 12 and the pipeline 13, and is further beneficial to reduce the risk that the pipeline 13 of the suction assembly 10 is blocked, and is beneficial to improve the reliability of the sealing piece assembling device 1.

[0122] Although the present application has been described with reference to the preferred embodiments, various modifications can be made to it without departing from the scope of the present application, and equivalent components can be substituted therefor. In particular, the technical features mentioned in each embodiment can be combined in any manner as long as there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A seal assembly apparatus, characterized by, The sealing assembly device is used for installing a sealing member into a liquid injection port of a battery cell, and comprises: a suction assembly including a suction member and a negative pressure mechanism, the suction member having a hollow cavity penetrating through the suction member, and the negative pressure mechanism being configured to provide negative pressure to the hollow cavity so as to enable the suction member to suck the sealing member; a clamping assembly having a loosened state and a clamped state, in the loosened state, the suction assembly is capable of sucking the sealing member, and in the clamped state, the clamping assembly is capable of clamping the sealing member.

2. The seal assembly of claim 1, wherein, The clamping assembly includes a clamping member having the loosened state and the clamped state, and a driving member configured to drive the clamping member to switch between the loosened state and the clamped state.

3. The seal assembly apparatus of claim 2, wherein, The clamping member includes an elastic member connected to the suction member, in a natural state, the elastic member is in the loosened state, and the driving member is configured to drive the elastic member to switch from the loosened state to the clamped state.

4. The seal assembly of claim 3, wherein, The elastic member includes a plurality of elastic pieces, the plurality of elastic pieces are arranged at intervals around the suction member.

5. The seal assembly of claim 4, wherein, The elastic piece has a first arc-shaped surface located on a side of the elastic piece facing the suction member, and the first arc-shaped surface is configured to be in contact with a surface of the sealing member.

6. The seal assembly of claim 4, wherein, The suction member has a first plane, the hollow cavity penetrates through the first plane, and the first plane is configured to be in contact with the sealing member.

7. A seal assembly apparatus as claimed in any one of claims 3 to 6, wherein, The suction member is in a hollow columnar shape, and the first plane is perpendicular to a central axis of the suction member.

8. The seal assembly of claim 7, wherein, The suction member includes a first sub-section and a second sub-section arranged along an axial direction of the suction member, an outer diameter of the first sub-section is smaller than an outer diameter of the second sub-section, and the first plane is located at an end of the first sub-section away from the second sub-section.

9. The seal assembly of claim 8, wherein, The elastic member is arranged at an outer periphery of the first sub-section and beyond the end of the first sub-section away from the second sub-section. The elastic member includes a plurality of elastic pieces, and the plurality of elastic pieces are arranged at intervals around a central axis of the first sub-section.

10. The seal assembly of claim 9, wherein, A side of the elastic member away from the second sub-section has a guide portion having a first guide surface arranged towards the central axis of the suction member, and the first guide surface is arranged to be inclined towards a direction away from the central axis of the suction member.

11. The seal assembly apparatus of claim 9, wherein, The driving member includes a sleeve, the sleeve is sleeved on the suction member and the elastic pieces, and is capable of moving along the axial direction relative to the suction member so as to drive the elastic pieces to switch between the loosened state and the clamped state.

12. The seal assembly apparatus of claim 10, wherein, The sleeve is in sliding fit with the second sub-section, and in the clamped state, the sleeve is in contact with the elastic pieces.

13. The seal assembly apparatus of claim 12, wherein, The sealing assembly device includes any one of the sealing assembly devices according to claims 1 to 13.

14. A battery production apparatus characterized by comprising: ​

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