Docking device and formation system

Abstract

The utility model belongs to the technical field of battery formation, particularly relates to the field of butt joint accessories of formation equipment, and provides a butt joint device and a formation system. The butt joint device comprises a connecting assembly and a connecting base, and the connecting assembly comprises a suction rod and a connecting rod. The suction nozzle structure is located between the connecting base and the suction rod, one end of the suction nozzle structure is connected with the suction rod, and the other end is in butt joint with the connecting base; the first clamp is arranged on the suction nozzle structure in a sleeving mode and connected with the suction nozzle structure and the connecting base in a hooping mode; the second clamp is arranged on the suction nozzle structure in a sleeving manner and is connected with the suction nozzle structure and the suction rod in a hooping manner; the sealing performance among the suction nozzle structure, the connecting base and the suction rod is improved, leakage can be effectively prevented in the suction process, the sealing performance of equipment is improved, and the problem that air leakage occurs at the butt joint due to the fact that the suction nozzle structure is expanded is effectively solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery formation, and particularly relates to the field of butt joint fittings of a formation device. BACKGROUND

[0002] During the battery formation stage, the negative pressure tray is placed in the formation cabinet, at which time it needs to be accurately butt jointed with the positive pressure pipeline. The butt joint process is achieved by connecting the positive pressure interface on the negative pressure tray with the positive pressure pipeline. After successful butt joint, the pneumatic control valve is opened, and the negative pressure pipeline starts to work to perform negative pressure formation on the battery, so as to ensure the stability of the gas pressure in the battery and improve the performance and quality of the battery.

[0003] However, in actual operation, the butt joint between the positive pressure interface on the negative pressure tray and the positive pressure pipeline is usually achieved by using a suction nozzle structure. However, due to the material and structural properties of the suction nozzle structure, when the positive pressure butt joint interface on the negative pressure tray is butt jointed with the positive pressure pipeline through the suction nozzle structure, the suction nozzle structure is easily expanded due to excessive positive pressure, thereby causing air leakage at the butt joint, which causes the entire butt joint system to fail, thereby affecting the efficiency of battery formation and possibly adversely affecting the quality of the battery.

[0004] Therefore, the utility model is provided. CONTENT OF THE UTILITY MODEL

[0005] The application provides a butt joint device and a formation system to solve the problem of air leakage at the butt joint caused by expansion of the suction nozzle structure.

[0006] In a first aspect of the application, a connection assembly and a connection seat are provided. The connection assembly includes a suction rod, a suction nozzle structure located between the connection seat and the suction rod, one end of the suction nozzle structure being connected to the suction rod and the other end being butt jointed to the connection seat, and a anti-expansion piece sleeved on the suction nozzle structure for tightly connecting the suction nozzle structure, the connection seat and the suction rod.

[0007] In a further aspect of the application, the anti-expansion piece includes a first clamp sleeved on one end of the suction nozzle structure close to the connection seat and tightly connecting the suction nozzle structure and the connection seat, and a second clamp sleeved on one end of the suction nozzle structure close to the suction rod and tightly connecting the suction nozzle structure and the suction rod.

[0008] In a further aspect of the application, the first clamp and / or the second clamp are spring clamps.

[0009] In a further aspect of the application, the anti-expansion piece is a rigid sleeve, and the suction nozzle structure and the anti-expansion piece are integrally arranged.

[0010] In a further aspect of the application, the nozzle structure is a resilient member and forms a first channel, the first channel has two ends along an axial direction of the first channel, the two ends are respectively configured to insert the suction rod and the connecting seat; an inner wall of an end of the first channel configured to insert the connecting seat protrudes and forms at least one first protrusion, the connecting seat is provided with at least one first clamping groove, each of the first protrusions is matched with a corresponding one of the first clamping grooves, so that the connecting seat is sealingly connected with the nozzle structure; and / or an inner wall of an end of the first channel configured to insert the suction rod protrudes and forms at least one second protrusion, the suction rod is provided with at least one second clamping groove, each of the second protrusions is matched with a corresponding one of the second clamping grooves, so that the suction rod is sealingly connected with the nozzle structure.

[0011] In a further aspect of the application, the first protrusions and the second protrusions are obliquely arranged towards each other.

[0012] In a further aspect of the application, the nozzle structure is a rigid member and forms a first channel, the first channel has two ends along an axial direction of the first channel, the two ends are respectively configured to insert the suction rod and the connecting seat; an inner wall of an end of the first channel configured to insert the connecting seat is recessed inward and forms at least one first recess, the connecting assembly further comprises at least one first sealing member, each of the first sealing members is arranged in a corresponding one of the first recesses, so that the connecting seat is sealingly connected with the nozzle structure; and / or an inner wall of an end of the first channel configured to insert the suction rod is recessed inward and forms at least one second recess, the connecting assembly further comprises at least one second sealing member, each of the second sealing members is arranged in a corresponding one of the second recesses, so that the suction rod is sealingly connected with the nozzle structure.

[0013] In a further aspect of the application, the connecting assembly further comprises a nozzle sleeve, the nozzle sleeve is connected to the nozzle structure and the suction rod at two ends in an axial direction and encloses a receiving space with the nozzle structure and the suction rod, and the second clamping hoop is sleeved on the nozzle structure in the receiving space.

[0014] In a further aspect of the application, the anti-expansion member is further connected to the suction rod.

[0015] In a further aspect of the application, the first channel comprises a first section, a second section and a third section connected in sequence along an axial direction; an inner diameter of the first section is arranged to decrease in sequence from the first section towards the second section; an inner diameter of the second section is greater than an inner diameter of the third section, and the inner diameter of the third section is less than an outer diameter of at least a part of the connecting seat inserted into the first channel, so as to limit a depth of the connecting seat inserted into the first channel.

[0016] In a further solution of the present application, the suction rod also includes a connecting section and a second limiting section connected in sequence along the axial direction, and the connecting section is located between the first limiting section and the second limiting section in the axial direction; the second limiting section and the first limiting section both protrude from the connecting section along the radial direction to form a limiting groove with the connecting section, and the end of the suction nozzle sleeve away from the suction nozzle structure is clamped to the inner wall of the limiting groove.

[0017] In a further solution of the present application, the nozzle cover includes a main body and a first limiting portion, the first limiting portion is located at the end of the main body in the axial direction and protrudes from the main body in the radial direction, and the first limiting portion is clamped to the inner wall of the limiting groove.

[0018] The connecting assembly further includes: a fixing block, which can be loosely fitted with the outer wall of the suction rod when the suction rod moves in a direction away from the connecting seat; and an elastic member, which is sleeved on the suction rod and has one end fixed to the fixing block.

[0019] In a second aspect of the present application, a battery formation system is further provided, comprising a device body and the above-mentioned docking device, wherein the connecting component is arranged on the device body.

[0020] In summary, the present application provides a docking device, which includes a connecting assembly, a connecting seat and an anti-expansion piece. The anti-expansion piece tightens the connection between the suction nozzle structure and the connecting seat, as well as the suction nozzle structure and the suction rod, thereby improving the connection stability between the suction nozzle structure and the suction rod and the connecting seat respectively; ensuring that even in a complex or high-load working environment, the docking device can maintain a stable connection and is not prone to loosening or falling off. In addition, it can also improve the sealing between the suction nozzle structure, the connecting seat and the suction rod, which can effectively prevent leakage during the suction process, improve the sealing performance of the equipment, and effectively solve the problem of air leakage at the docking point caused by the expansion of the suction nozzle structure.

[0021] Other features and advantages of the embodiments of the present invention will be described in the subsequent specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0023] Figure 1 This is a schematic structural diagram of a docking device provided under a general concept of the present utility model;

[0024] Figure 2A cross-sectional view of the docking device provided by an embodiment of the present utility model in a docking state;

[0025] Figure 3 A partial cross-sectional view of the docking device provided by an embodiment of the present utility model in a separated state;

[0026] Figure 4 A schematic structural diagram of another embodiment of the docking device provided by the present utility model;

[0027] Figure 5 For the embodiment of the utility model Figure 4 sectional view of

[0028] Figure 6 This is a cross-sectional view of another embodiment of the docking device provided by the present invention.

[0029] The reference numerals are as follows:

[0030] 100. Docking device;

[0031] 10. Connect components;

[0032] 11. Suction rod; 111. Insertion section; 112. First limiting section; 113. Connecting section; 114. Second limiting section; 115. First extension section; 116. Second extension section; 117. Third limiting section;

[0033] 12. Nozzle structure; 121. Main body; 122. Clamping part;

[0034] 13. First clamp;

[0035] 14. Second clamp;

[0036] 15. Nozzle cover; 151. Main body; 152. First limiting portion; 153. Second limiting portion;

[0037] 16. Fixed block;

[0038] 17. Elastic parts;

[0039] 18. First sealing member;

[0040] 19. Second sealing member;

[0041] 20. Connecting seat;

[0042] 30. Pipe joints;

[0043] U, anti-expansion piece; A1, first channel; A11, first section; A12, second section; A13, third section; F1, first protrusion; F2, second protrusion; E1, first slot; E2, second slot; G1, first groove; G2, second groove; T, limit groove. DETAILED DESCRIPTION

[0044] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear to indicate the orientation or position relationship, unless otherwise specified, they are understood to be based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this application.

[0045] Furthermore, the use of "first" or "second" in a specification is intended solely to describe the intended feature and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being specified. A feature specified as "first" or "second" may explicitly or implicitly include at least one of the specified features. The use of "plurality" in a specification generally implies at least two, such as two or three, unless otherwise specifically specified.

[0046] In this application, unless otherwise specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integration; mechanical connections, electrical connections, direct connections, or indirect connections through an intermediary; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0047] In the description of this specification, if the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0048] The present application provides a docking device and a formation system composed of the docking device, which aims to solve the problem that during the battery formation process, when the positive pressure interface of the negative pressure tray is docked with the positive pressure pipeline, the traditional suction nozzle structure is easily expanded due to excessive positive pressure, thereby causing air leakage at the docking point.

[0049] See also Figures 1 to 3 The present application first provides a docking device 100, which includes a connecting component 10 and a connecting seat 20. The connecting component 10 includes a suction rod 11 and a suction nozzle structure 12. Based on the general concept of the present application, the connecting component also includes an anti-expansion component U, which is sleeved on the suction nozzle structure 12 to tighten the connection between the suction nozzle structure 12 and the connecting seat 20, as well as the suction nozzle structure 12 and the suction rod 11.

[0050] It can be understood that the suction rod 11 serves as the main part of the connecting component 10, one end of which is connected to the suction nozzle structure 12, and the other end is connected to a vacuum pump or other power source, for transmitting the positive pressure or negative pressure generated by the external equipment to the suction nozzle structure 12; the suction nozzle structure 12 is located between the connecting seat 20 and the suction rod 11, and is configured to have a specific shape to adapt to the insertion of different connecting seats 20, so as to transmit suction or pressure; the anti-expansion part U connects the suction nozzle structure 12 and the connecting seat 20 as well as the suction nozzle structure 12 and the suction rod 11 by tightening, so as to enhance the connection stability between the above components; ensure that even in a complex or high-load working environment, the docking device 100 can maintain a stable connection and is not prone to loosening or falling off. In addition, it can also improve the sealing between the suction nozzle structure 12 and the connecting seat 20 and the suction rod 11, which can effectively prevent leakage during the suction process, improve the sealing performance of the equipment, and effectively solve the problem of air leakage at the docking point caused by the expansion of the suction nozzle structure 12.

[0051] In one embodiment of the present application, the anti-expansion component U includes a first clamp 13 and a second clamp 14; wherein the suction nozzle structure 12 is located between the connecting seat 20 and the suction rod 11, and one end of the suction nozzle structure 12 is connected to the suction rod 11 and the other end is connected to the connecting seat 20.

[0052] The first clamp 13 is sleeved on the nozzle structure 12 and tightly connects the nozzle structure 12 and the connecting seat 20 ; the second clamp 14 is sleeved on the nozzle structure 12 and tightly connects the nozzle structure 12 and the suction rod 11 .

[0053] In the present application, the first clamp 13 and the second clamp 14 are both annular or strip-shaped fastening devices; the first clamp 13 is sleeved on one end of the suction nozzle structure 12 close to the connecting seat 20, and is clamped and connected to the suction nozzle structure 12 and the connecting seat 20 through a fastening effect, ensuring a tight connection and sealing between the two; the second clamp 14 is sleeved on one end of the suction nozzle structure 12 close to the suction rod 11, and is also clamped and connected to the suction rod 11 through a fastening effect; the tightness of the first clamp 13 and the second clamp 14 can be adjusted as needed to ensure a tight connection and sealing between the suction nozzle structure 12 and the suction rod 11 and the connecting seat 20 respectively.

[0054] Through the dual fastening effect of the first clamp 13 and the second clamp 14, the connection stability between the suction nozzle structure 12 and the suction rod 11 and the connecting seat 20 is improved; ensuring that even in a complex or high-load working environment, the docking device 100 can maintain a stable connection and is not prone to loosening or falling off. In addition, the sealing between the suction nozzle structure 12 and the connecting seat 20 and the suction rod 11 can be improved, which can effectively prevent leakage during the suction process and improve the sealing performance of the equipment.

[0055] In the embodiment of the present application, the first clamp 13 and / or the second clamp 14 can be a variety of different types of clamps, and their selection depends on factors such as specific application requirements, the material and size of the connecting parts, and the required tightening force.

[0056] For example, the first clamp 13 and / or the second clamp 14 can be a spring clamp, which provides a fastening force through elastic deformation. When it is put on the suction nozzle structure 12 and compressed, it can be firmly fixed to the suction rod 11 or the connecting seat 20, thereby achieving easy installation without the need for additional fasteners, and can adapt to a certain degree of dimensional changes and has a self-locking function.

[0057] In some embodiments based on the present general concept, the first clamp 13 and / or the second clamp 14 is a buckle clamp, that is, it includes a metal belt or plastic belt with a buckle or lock, which provides a fastening force by wrapping around the suction nozzle structure 12 and tightening the buckle or lock; the fastening force of this clamp can be controlled by adjusting the tightness of the buckle or lock, and is suitable for occasions where a higher fastening force is required.

[0058] Alternatively, the first clamp 13 and / or the second clamp 14 can also be a throat clamp or a hose clamp, which consists of a ring body with a thread and a nut that cooperates with it. The ring body is pushed to move axially by rotating the nut, thereby fastening the nozzle structure. It has the advantage of a wide adjustable range, so that it can adapt to nozzle structures 12 of different diameters.

[0059] like Figure 4 as well as Figure 5As shown, in another embodiment of the present application, the anti-expansion member U can also be provided as a rigid sleeve (such as stainless steel material), and the suction nozzle structure 12 and the anti-expansion member U are integrally provided. Due to the characteristics of the anti-expansion member U, it has the ability to resist deformation, and when the suction nozzle structure 12 is integrally provided with the anti-expansion member U, the anti-expansion member U can effectively limit the deformation of the suction nozzle structure 12 in the radial direction, and can guarantee the stable connection between the connecting seat and the suction rod and the suction nozzle structure, so as to ensure that the docking device can maintain stable connection even in complex or high-load working environment, and is not easy to loosen or fall off. And the suction nozzle structure 12 and the anti-expansion member U form an integral whole, which can effectively avoid the sliding of the suction nozzle structure 12.

[0060] In the present application, the material selection (elastic member or rigid member) of the suction nozzle structure 12 depends on the specific application scenario. When designing the docking device, the matching of the suction nozzle structure and the anti-expansion member U needs to be considered according to the actual demand to ensure the performance and reliability of the whole device. Through reasonable selection and collocation.

[0061] As Figure 2 and Figure 5 In a feasible embodiment, the suction nozzle structure 12 is an elastic member, and a first channel A1 is formed in the inside of the suction nozzle structure 12, which extends along the axial direction C (i.e. the length direction of the suction nozzle structure 12), and the two ends thereof are respectively designed for the insertion of the suction rod 11 and the connecting seat 20, so as to allow the suction nozzle structure 12 to become the intermediate piece between the connecting seat 20 and the suction rod 11, and to transmit suction force or pressure.

[0062] At one end of the first channel A1 for the insertion of the connecting seat 20, the inner wall thereof protrudes to form at least one first protrusion F1. The first protrusion F1 can cooperate with at least one first clamping groove E1 provided on the connecting seat 20; when the connecting seat 20 is inserted into the suction nozzle structure, the first protrusion F1 is pressed under the action of mechanical force to be clamped into the corresponding first clamping groove E1, so as to realize the sealed connection therebetween; similarly, at one end of the first channel A1 for the insertion of the suction rod 11, the inner wall thereof also protrudes to form at least one second protrusion F2, which cooperates with at least one second clamping groove E2 provided on the suction rod 11. When the suction rod 11 is inserted into the suction nozzle structure, the second protrusion F2 is clamped into the corresponding second clamping groove E2 in the same way, so as to realize the sealed connection with the suction nozzle structure.

[0063] It can be understood that through the close cooperation of the protrusions and the clamping grooves, the leakage of gas medium can be effectively prevented, so as to ensure the sealing property in the use process, which is particularly important for application scenarios requiring high-precision gas flow; and through the physical clamping, the connection strength can be increased, the risk of loosening or falling off caused by factors such as vibration and impact can be reduced, so that the whole system is more stable and reliable.

[0064] In the embodiment of the present application, the first protrusion F1 and the second protrusion F2 are arranged to extend obliquely toward each other; that is, the first protrusion F1 extends obliquely in a direction away from the direction of insertion of the connecting base 20, and the second protrusion F2 extends obliquely in a direction away from the direction of insertion of the suction rod 11. The inclined protrusion design plays a guiding role when the connecting base 20 and the suction rod 11 are inserted into the suction nozzle structure, making the insertion process smoother. Since the protrusion is inclined, it will naturally guide the connecting component to enter along the correct path, reducing the difficulty of insertion caused by misalignment or deviation; when the connecting base 20 and the suction rod 11 are fully inserted and reach the predetermined position, the inclined protrusion will be completely stuck in the corresponding slot, achieving reverse locking. This locking mechanism not only ensures the stability of the connection, but also prevents the connecting component from accidentally falling off when subjected to external force.

[0065] See Figure 6 In another feasible embodiment of the present application, the nozzle structure 12 is a rigid member and is formed with a first channel A1, and the two ends of the first channel A1 along the axial direction C thereof are respectively used for inserting the suction rod 11 and the connecting seat 20;

[0066] In the present application, the inner wall of the first channel A1 at one end for inserting the connecting seat 20 is recessed inward to form at least one first groove G1, and the connecting component 10 also includes at least one first seal 18, and each first seal 18 is arranged in a corresponding first groove G1 to seal the connecting seat 20 with the suction nozzle structure 12; and / or the inner wall of the first channel A1 at one end for inserting the suction rod 11 is recessed inward to form at least one second groove G2, and the connecting component 10 also includes at least one second seal 19, and each second seal 19 is arranged in a corresponding second groove G2 to seal the suction rod 11 with the suction nozzle structure 12.

[0067] As you can understand, the inner wall of the first channel A1, at the end where the connector 20 or suction rod 11 is inserted, is designed with an inwardly recessed groove (G1 or G2), providing space for the installation and securing of the corresponding seal. When the connector 20 or suction rod 11 is inserted into the first channel A1, it contacts and compresses the first seal 18 or second seal 19, respectively. The elasticity and / or compressibility of the seals create a tight seal, effectively preventing leakage at the joint and improving connection security.

[0068] Continue reading Figure 1 as well as Figure 3 When the nozzle structure 12 is elastic, the connecting assembly 10 may further include a nozzle sleeve 15, the two ends of which in the axial direction C are respectively connected to the nozzle structure 12 and the suction rod 11 and form a receiving space with the nozzle structure 12 and the suction rod 11, and the second clamp 14 is sleeved on the nozzle structure 12 in the receiving space.

[0069] The nozzle cover 15 can be designed to be an elastic structure. When the suction rod 11 is fully inserted, the nozzle cover 15, the nozzle structure 12 and the suction rod 11 together form a receiving space. At this time, the second clamp 14 is sleeved on the nozzle structure 12 in this receiving space, thereby further strengthening the connection between the suction rod 11 and the nozzle structure 12 and achieving a better sealing effect. In addition, the inner diameter and outer diameter of the nozzle cover 15 are closely matched with the corresponding dimensions of the nozzle structure 12 and the suction rod 11, respectively, to form a certain friction force, thereby preventing relative movement between the two; after the connecting seat 20 and the connecting assembly 10 are undocking, it can effectively prevent the nozzle structure 12 from being accidentally pulled out under mechanical force, thereby improving stability. At the same time, the nozzle cover 15 can also serve as an additional protective layer to reduce wear or damage to the nozzle structure 12 during use.

[0070] Furthermore, first channel A1 comprises a first section A11, a second section A12, and a third section A13, which are sequentially connected along the axial direction C. The inner diameter of first section A11 decreases gradually from first section A11 toward second section A12, providing guidance and initial positioning. This helps ensure that connector 20 enters the channel at the correct angle and orientation during initial insertion, preventing connection problems caused by misalignment and also providing an end seal.

[0071] The inner diameter of the second section A12 is greater than the inner diameter of the third section A13, providing a certain amount of accommodation space for the end of the connecting seat 20 to enter, so as to perform necessary radial adjustment or alignment during the insertion process.

[0072] Furthermore, the second section A12 can be clearance-fitted with the connecting seat 20 to eliminate radial deviations caused by manufacturing tolerances or assembly errors; at the same time, it can also reduce wear caused by friction and extend the service life of the connecting seat 20.

[0073] The inner diameter of the third section A13 is smaller than the outer diameter of at least the portion of the connector 20 inserted into the first channel A1, limiting the depth of insertion of the connector 20 into the first channel A1. Simply put, when a specific portion of the connector 20 (whose outer diameter is larger than the inner diameter of the third section A13) abuts against the third section A13, it is blocked and unable to penetrate further. This physical limiter ensures that the connector 20 reaches the same insertion depth each time a connection is made, thereby improving connection accuracy and consistency.

[0074] In summary, due to the physical structure limitations of the first channel A1, it has high repeatability and reliability. Whether it is manual installation or automated assembly, it can ensure that the insertion depth of the connector 20 remains consistent, reducing the impact of human factors or equipment differences on the connection quality.

[0075] like Figure 3As shown, the suction rod 11 correspondingly includes an insertion section 111 and a first limiting section 112 connected in sequence along the axial direction C. The insertion section 111 is used to be inserted into the first channel A1, and the first limiting section 112 protrudes from the insertion section 111 along the radial direction D of the first channel A1, and is used to abut the suction nozzle structure 12 to limit the depth of the suction rod 11 inserted into the first channel A1.

[0076] The first limiting section 112 is located behind the insertion section 111 and protrudes from the insertion section 111 along the radial direction D of the first channel A1 (i.e., the direction perpendicular to the axial direction C), so that when the suction rod 11 is inserted to a preset depth along the axial direction C, the first limiting section 112 will contact a certain structure in the first channel A1 (such as the suction nozzle structure 12); when the first limiting section 112 contacts the suction nozzle structure 12, it will prevent the suction rod 11 from being further inserted along the axial direction C. In this way, the suction rod 11 can be ensured to be inserted to the predetermined depth each time the connection is made, thereby ensuring the stability and reliability of the connection.

[0077] The suction rod 11 also includes a connecting section 113 and a second limiting section 114 connected in sequence along the axial direction C. The connecting section 113 is located between the first limiting section 112 and the second limiting section 114 in the axial direction C; the second limiting section 114 and the first limiting section 112 both protrude from the connecting section 113 along the radial direction D to form a limiting groove T with the connecting section 113, and a corresponding clip structure t2 is provided at the end of the suction nozzle sleeve 15 away from the suction nozzle structure 12 to be clamped to the inner wall of the limiting groove T to achieve a stable connection.

[0078] As the transition section between the first limiting section 112 and the second limiting section 114, the connecting section 113 has a relatively small outer diameter in the axial direction C to provide space for the radial protrusion of the first limiting section 112 and the second limiting section 114. The second limiting section 114 is located after the connecting section 113 and continues to extend along the axial direction C. Similar to the first limiting section 112, the second limiting section 114 also protrudes from the connecting section 113 in the radial direction D. The space enclosed by the first limiting section 112, the connecting section 113, and the second limiting section 114 is called a limiting groove T. After the end of the nozzle cover 15 away from the nozzle structure 12 is connected to the suction rod 11, the corresponding part can be smoothly inserted into the limiting groove T, thereby achieving a mechanical connection between the nozzle cover 15 and the suction rod 11 and preventing loosening or falling off due to external forces during use.

[0079] In the embodiment of the present application, the connection method of the nozzle cover 15 and the nozzle structure 12 and the suction rod 11 is not limited. In an optional manner, the nozzle cover 15 and the nozzle structure 12 and / or the suction rod 11 can be connected by snapping.

[0080] Specifically, the nozzle cover 15 includes a main body 151 and a first limiting portion 152. The first limiting portion 152 is located at the end of the main body 151 in the axial direction C and protrudes from the main body 151 in the radial direction D. The first limiting portion 152 can be clamped on the inner wall of the limiting groove T to achieve connection with the suction rod 11.

[0081] In an optional solution of the present application, the nozzle structure 12 includes a main body 121 and a clamping portion 122; the main body 121 is formed with a first channel A1; the first clamp 13 and the second clamp 14 are respectively arranged on the parts of the main body 121 located on both sides of the clamping portion 122; the clamping portion 122 protrudes from the main body 121 along the radial direction D of the first channel A1; wherein, the nozzle sleeve 15 also includes a second limiting portion 153, the second limiting portion 153 is located at the other end away from the main body 121 in the axial direction C, and also protrudes from the main body 151 along the radial direction D; the second limiting portion 153 can be clamped to the clamping portion 122 to achieve connection with the nozzle structure 12.

[0082] The first limiting portion 152 is located at one end of the main body 151 in the axial direction C and protrudes from the main body 151 in the radial direction D. Its function is to be clamped on the inner wall of the limiting groove T (this limiting groove may be located on other components that cooperate with the suction nozzle sleeve 15) so that the suction nozzle sleeve 15 and the suction rod 11 are connected, thereby constraining the suction rod 11; the second limiting portion 153 is also located at the other end of the main body 151 in the axial direction C and protrudes along the radial direction D. Its function is to be clamped on the clamping portion 122 of the suction nozzle structure 12, so that the suction nozzle sleeve 15 is firmly fixed on the suction nozzle structure 12.

[0083] Continue reading Figure 6 In the embodiment of the present application, when the suction nozzle structure 12 is a rigid part, the suction nozzle structure 12 can be directly connected to the suction rod 11, and the connection method is not limited. The suction nozzle structure 12 or the suction rod 11 is designed with a buckle, a slot or an elastic claw and other structures, so that the two can be firmly snapped together. The suction nozzle cover 15 can be similarly snapped together. Alternatively, the suction nozzle structure 12 can also be directly integrated with the suction rod 11, so that the entire connection assembly is more compact and the connection strength is improved.

[0084] Furthermore, the connection assembly 10 further includes a fixing block 16. The shape of the fixing block 16 is not limited and depends on the on-site installation environment. For example, Figure 3 or Figure 5 Both are possible; wherein, when the suction rod 11 moves in a direction away from the connecting seat 20, the fixing block 16 is configured to be able to fit with the outer wall of the suction rod 11 through a clearance fit; the clearance fit allows the suction rod 11 to have a certain radial degree of freedom during the axial movement, and the nozzle structure 12 can absorb the radial tolerance to achieve automatic centering, while reducing the problem of uneven movement caused by excessive friction resistance, thereby improving the overall operating efficiency of the system.

[0085] Further, the connecting assembly 10 further comprises an elastic member 17, which is sleeved on the suction rod 11 and fixed at one end to the fixed block 16, can absorb energy when the suction rod 11 is impacted or vibrated, avoid direct hard insertion, and at the same time can exert a certain compression elastic force on the suction rod 11, ensure that a certain tight connection can be maintained when the suction rod 11 is inserted and matched, and reduce the risk of leakage.

[0086] In one specific scheme, the suction rod 11 further comprises a first extension section 115, a second extension section 116 and a third limiting section 117 connected in sequence along the axial direction C with the second limiting section 114, and the second limiting section 114 and the second extension section 116 protrude from the first extension section 115 along the radial direction D, and the third limiting section 117 protrudes from the second extension section 116 along the radial direction D; the fixed block 16 is provided with an intermediate through hole, the fixed block 16 is sleeved on the second extension section 116 through the intermediate through hole and abuts against the third limiting section 117, and one end of the elastic member 17 away from the fixed block 16 abuts against the second limiting section 114.

[0087] That is, the second limiting section 114 serves as a starting part and protrudes from the first extension section 115 connected in sequence along the radial direction D, one of which is used to provide mounting support to the elastic member 17, and the other can abut at the suction nozzle sleeve 15 to limit the butt joint position of the suction rod 11. The radial dimension of the first extension section 115 is relatively small, which serves as a receiving action. The second extension section 116 again protrudes along the radial direction D, so that the second extension section 116 can cooperate with the fixed block 16; the third limiting section 117 is located at the end of the suction rod 11 and further protrudes from the second extension section 116 along the radial direction D. To constrain and prevent excessive movement of the suction rod 11 and the fixed block 16 along the axial direction C, and avoid the suction rod 11 from falling along the axial direction away from the fixed block 16.

[0088] As a specific solution, the outer diameter of the second extension section 116 gradually increases along the axial direction from the connecting seat 20 to the connecting assembly 10 to form a cone-like structure, so that when the suction rod 11 moves axially, the fitting clearance between it and the fixed block 16 can be dynamically adjusted. That is, under the action of the elastic member 17, after the connecting component 10 is docked with the connecting seat 20, the mechanical force of the plug-in squeezes the suction rod 11 to move axially toward the fixed block 16, and as the suction rod 11 moves, a relative displacement occurs between the fixed block 16 and the second extension section 116; due to the outer diameter design of the second extension section 116, the relative displacement causes the fitting clearance between the two to gradually increase, thereby reserving the radial movement freedom of the suction rod 11, and allowing the suction rod 11 to automatically adjust its position during the docking process to compensate for radial deviations caused by manufacturing tolerances, plug-in errors or other factors, and realize automatic alignment with the connecting seat 20, thereby improving the docking accuracy and stability, avoiding stress concentration caused by radial hard contact of the suction rod when the connecting component 10 and the connecting seat 20 are connected, improving the docking accuracy and extending the service life of the suction rod 11.

[0089] In a specific application, the docking device 100 further includes a pipe connector 30 , which is plugged into the third limiting section 117 with one end connected to the suction rod 11 and the other end used to connect to the positive pressure pipeline.

[0090] Furthermore, those skilled in the art should understand that if all or part of the sub-modules involved in the various products of the docking device 100 provided in the embodiment of the present application are combined and replaced by fusion, simple changes, mutual conversion, etc., such as a detachable design; or part of its structure is designed to be split; all the combined components can form a structure with specific functions, and using such a structure to replace the corresponding components of the present application also falls within the scope of protection of the present application.

[0091] The present application also provides a battery formation system (not shown), comprising a device body and the docking device 100 as described above, wherein the connecting component 10 is disposed on the device body.

[0092] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A docking device, characterized in that: It comprises a connecting assembly (10) and a connecting seat (20), wherein the connecting assembly (10) comprises: Suction rod (11); A suction nozzle structure (12) is located between the connecting seat (20) and the suction rod (11), one end of the suction nozzle structure (12) is connected to the suction rod (11), and the other end is connected to the connecting seat (20); An anti-expansion member (U) is sleeved on the suction nozzle structure (12) to tightly connect the suction nozzle structure (12) and the connecting seat (20) as well as the suction nozzle structure (12) and the suction rod (11).

2. The docking device according to claim 1, characterized in that: The anti-expansion member (U) includes: A first clamp (13) is sleeved on one end of the nozzle structure (12) close to the connecting seat (20) and tightly connects the nozzle structure (12) and the connecting seat (20); A second clamp (14) is sleeved on one end of the suction nozzle structure (12) close to the suction rod (11) and tightly connects the suction nozzle structure (12) and the suction rod (11).

3. The docking device according to claim 2, characterized in that: The first clamp (13) and / or the second clamp (14) are spring clamps.

4. The docking device according to claim 1, characterized in that: The anti-expansion component (U) is a rigid kit, and the suction nozzle structure (12) and the anti-expansion component (U) are integrally arranged.

5. The docking device according to claim 2 or 4, characterized in that: The suction nozzle structure (12) is an elastic member and is formed with a first channel (A1), and the suction rod (11) and the connecting seat (20) are respectively inserted into the first channel (A1) at both ends along the axial direction (C); The inner wall of one end of the first channel (A1) for inserting the connecting seat (20) is protruded to form at least one first protrusion (F1), the connecting seat (20) is provided with at least one first card slot (E1), and each first protrusion (F1) cooperates with a corresponding first card slot (E1) to seal the connecting seat (20) with the nozzle structure (12); and / or The inner wall of one end of the first channel (A1) for inserting the suction rod (11) is protruded to form at least one second protrusion (F2), and the suction rod (11) is provided with at least one second card groove (E2), and each second protrusion (F2) cooperates with a corresponding second card groove (E2) to ensure a sealing connection between the suction rod (11) and the suction nozzle structure (12).

6. The docking device according to claim 5, characterized in that: The first protrusion (F1) and the second protrusion (F2) are arranged to extend obliquely toward each other.

7. The docking device according to claim 2 or 4, characterized in that: The suction nozzle structure (12) is a rigid part and is formed with a first channel (A1), and the suction rod (11) and the connecting seat (20) are respectively inserted into the first channel (A1) at both ends along the axial direction (C); The inner wall of one end of the first channel (A1) for inserting the connecting seat (20) is recessed inward to form at least one first groove (G1), and the connecting assembly (10) further comprises at least one first sealing member (18), each first sealing member (18) being disposed in a corresponding first groove (G1) to seal the connecting seat (20) to the nozzle structure (12); and / or The inner wall of one end of the first channel (A1) for inserting the suction rod (11) is recessed inward to form at least one second groove (G2), and the connecting assembly (10) further includes at least one second sealing member (19), each of the second sealing members (19) being arranged in a corresponding second groove (G2) to seal the suction rod (11) to the suction nozzle structure (12).

8. The docking device according to claim 2, characterized in that: The connecting assembly (10) further comprises a nozzle sleeve (15), wherein the two ends of the nozzle sleeve (15) in the axial direction (C) are respectively connected to the nozzle structure (12) and the suction rod (11) and enclose a receiving space with the nozzle structure (12) and the suction rod (11), and the second clamp (14) is sleeved on the nozzle structure (12) in the receiving space.

9. The docking device according to claim 4, characterized in that: The anti-expansion member (U) is also connected to the suction rod (11).

10. The docking device according to claim 5, characterized in that: The first channel (A1) comprises a first section (A11), a second section (A12) and a third section (A13) connected in sequence along the axial direction (C); The inner diameter of the first section (A11) is arranged to decrease in sequence from the first section (A11) toward the second section (A12); The inner diameter of the second section (A12) is greater than the inner diameter of the third section (A13), and the inner diameter of the third section (A13) is smaller than the outer diameter of at least a portion of the connecting seat (20) inserted into the first channel (A1), so as to limit the depth of the connecting seat (20) inserted into the first channel (A1).

11. The docking device according to claim 5, characterized in that: The suction rod (11) comprises an insertion section (111) and a first limiting section (112) connected in sequence along the axial direction (C); The insertion section (111) is used to be inserted into the first channel (A1), and the first limiting section (112) protrudes from the insertion section (111) along the radial direction (D) of the first channel (A1) and is used to abut against the suction nozzle structure (12) to limit the depth of the suction rod (11) inserted into the first channel (A1).

12. The docking device according to claim 11, characterized in that: The suction rod (11) further comprises a connecting section (113) and a second limiting section (114) connected in sequence along the axial direction (C), wherein the connecting section (113) is located between the first limiting section (112) and the second limiting section (114) in the axial direction (C); The second limiting section (114) and the first limiting section (112) both protrude from the connecting section (113) along the radial direction (D) to form a limiting groove (T) with the connecting section (113), and the end of the nozzle sleeve (15) in the connecting assembly (10) away from the nozzle structure (12) is clamped to the inner wall of the limiting groove (T).

13. The docking device according to claim 12, characterized in that: The nozzle cover (15) comprises a main body (151) and a first limiting portion (152), wherein the first limiting portion (152) is located at the end of the main body (151) in the axial direction (C) and protrudes from the main body (151) in the radial direction (D), and the first limiting portion (152) is clamped to the inner wall of the limiting groove (T).

14. The docking device according to claim 1, characterized in that The connecting component (10) further comprises: a fixed block (16) capable of loosely fitting with the outer wall of the suction rod (11) when the suction rod (11) moves in a direction away from the connecting seat (20); and An elastic member (17) is sleeved on the suction rod (11) and has one end fixed to the fixing block (16).

15. A chemical formation system, characterized in that: It comprises a device body and the docking device according to any one of claims 1 to 14, wherein the connection component (10) is arranged on the device body.

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