Guide structure, core rod insertion mechanism and battery cell manufacturing device

Abstract

The utility model provides a guide structure, a core rod inserting mechanism and a battery cell manufacturing device.The guide structure comprises a mounting base and a plurality of guide parts, each guide part comprises a connecting section and an inserting section, the guide parts are rotationally connected to the mounting base through the connecting sections, and the inserting sections define an inserting part, so that a core rod conveniently penetrates through the guide parts and then enters a center hole of a battery cell; the damage to the battery cell caused by direct contact between the core rod and the inner wall of the central hole is avoided, and the integrity of the battery cell structure is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of guidance technology. Specifically, it relates to a guidance structure, a mandrel insertion mechanism, and a battery cell manufacturing device. Background Technology

[0002] In related technologies, after the battery cell is wound, a central hole is usually left on it. Based on the requirements of maintaining the size of the central hole, a core rod is usually inserted into the central hole.

[0003] However, since the gap between the core rod and the inner wall of the center hole is usually small, and the two ends of the core rod are sharp in the axial direction, the core rod is prone to damaging the diaphragm inside the center hole during the process of inserting the core rod into the center hole, which affects the quality of the battery cell and its safety in use. Utility Model Content

[0004] One objective of this invention is to provide a new technical solution for a guide structure, a mandrel insertion mechanism, and a cell manufacturing apparatus.

[0005] According to a first aspect of the present invention, a guide structure is provided, comprising:

[0006] Mounting base;

[0007] Multiple guide members, each guide member including a connecting section and a plug-in section, the guide members being rotatably connected to the mounting base via the connecting section, and the multiple plug-in sections forming a plug-in portion.

[0008] Optionally, the plug-in portion has a closed state and an open state;

[0009] When the connector is in the closed state, it is used to insert into the hole of the battery cell; when the connector switches from the closed state to the open state, the core rod can be inserted into the center hole of the battery cell through the connector.

[0010] Optionally, a first guide channel is formed in the mounting base, and a second guide channel is formed in the insertion part, wherein the first guide channel and the second guide channel are in relative communication.

[0011] Optionally, when the plug-in portion is in the closed state, the plurality of plug-in segments form a circumferentially closed plug-in portion.

[0012] Optionally, the outer surface of the plug segment forms a first arc surface.

[0013] Optionally, in the direction in which the battery cell is inserted into the connector, the radius of the first arc surface gradually decreases; or,

[0014] In the direction in which the battery cell is inserted into the connector, the radii of the first arc surface are equal.

[0015] Optionally, the inner surface of the plug segment forms a second arc surface.

[0016] Optionally, in the direction in which the battery cell is inserted into the connector, the radius of the second arc surface gradually decreases; or,

[0017] In the direction in which the battery cell is inserted into the connector, the radii of the second arc surface are equal.

[0018] Optionally, it also includes an elastic element disposed on the mounting base and abutting against the connecting section.

[0019] According to a second aspect of the present invention, a mandrel insertion mechanism is provided, comprising a pin drive structure and a guide structure as described in the first aspect;

[0020] The pin drive structure is connected to the guide structure and is used to drive the insertion part to move.

[0021] Optionally, the pin drive structure includes a pin base, a pin drive component, and a connector. The pin base is fixedly disposed, the pin drive component is disposed on the pin base, and the connector is connected between the pin drive component and the guide structure.

[0022] Optionally, the pin base is provided with a guide groove, and the guide structure is movably disposed in the guide groove.

[0023] Optionally, it also includes a push pin driving structure, which includes a push rod driving member and a push rod, wherein the push rod driving member can drive the push rod to move along the direction in which the core rod is inserted into the center hole of the cell.

[0024] According to a third aspect of this utility model, a battery cell manufacturing apparatus is provided, comprising the guiding structure described in the first aspect; or,

[0025] Includes the mandrel insertion mechanism described in the second aspect.

[0026] One technical advantage of this utility model is:

[0027] This application provides a guide structure, which includes a mounting base and multiple guide members. Each guide member includes a connecting section and a plug-in section. The guide member is rotatably connected to the mounting base through the connecting section, and the multiple plug-in sections form a plug-in portion, which facilitates the core rod to pass through the guide member and enter the central hole of the battery cell. This avoids direct contact between the core rod and the inner wall of the central hole, which could cause damage to the battery cell and ensure the integrity of the battery cell structure.

[0028] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0029] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present invention and, together with their description, serve to explain the principles of the present invention.

[0030] Figure 1 A perspective view of a guide structure provided in one embodiment of the present invention;

[0031] Figure 2 A rear view of a guide structure provided in one embodiment of the present invention;

[0032] Figure 3 for Figure 2 Cross-sectional view along plane AA;

[0033] Figure 4 A partial view of a guide structure provided in one embodiment of the present invention;

[0034] Figure 5 A schematic diagram of an assembly base for a guide structure provided in one embodiment of this utility model;

[0035] Figure 6 A schematic diagram of a guide member for a guide structure provided in one embodiment of this utility model. Figure 1 ;

[0036] Figure 7 A schematic diagram of a guide member for a guide structure provided in one embodiment of this utility model. Figure 2 ;

[0037] Figure 8 A schematic diagram of a mandrel insertion mechanism provided in one embodiment of the present invention;

[0038] Figure 9 A partial schematic diagram of a mandrel insertion mechanism provided in one embodiment of the present invention;

[0039] Figure 10 This is a schematic diagram of a mandrel insertion mechanism according to an embodiment of the present invention.

[0040] in:

[0041] 100. Guide structure; 1. Mounting base; 11. Support; 12. Assembly base; 13. First guide channel; 2. Guide component; 21. Connecting section; 22. Insertion section; 221. Second guide channel; 222. First arc surface; 223. Second arc surface; 23. Insertion part; 3. Bearing; 4. Elastic component;

[0042] 200. Pin drive structure; 201. Pin base; 2011. Guide groove; 202. Pin drive component; 203. Connector; 300. Push pin drive structure; 301. Push rod drive component; 302. Push rod;

[0043] 400, battery cell; 500, battery rod. Detailed Implementation

[0044] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present invention.

[0045] The embodiments of this application will now be described in detail, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0046] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0047] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0050] In related technologies, after the battery cell is wound, a central hole is usually left on it. To maintain the size of the central hole, a mandrel is generally inserted into the central hole. Since the gap between the mandrel and the inner wall of the central hole is usually small, and the two ends of the mandrel are sharp along the axis, the mandrel is prone to damaging the diaphragm inside the central hole during the insertion process, which affects the quality and safety of the battery cell.

[0051] The guiding structure provided in this application embodiment facilitates the core rod to enter the central hole of the battery cell after passing through the guide member, avoiding direct contact between the core rod and the inner wall of the central hole, which could cause damage to the battery cell and ensure the integrity of the battery cell structure.

[0052] Reference Figures 1 to 3 This application provides a guide structure 100, which includes:

[0053] Mounting base 1;

[0054] Multiple guide members 2, each guide member 2 including a connecting section 21 and a plug-in section 22, the guide member 2 is rotatably connected to the mounting base 1 through the connecting section 21, and the multiple plug-in sections 22 form a plug-in part 23.

[0055] In the above embodiments, the mounting base 1 can be relatively fixed to provide a stable mounting position for the installation of multiple guide members 2, thereby ensuring the stability of the installation of multiple guide members 2.

[0056] In the above embodiments, the guide member 2 can be made of metal or a non-metallic material with high hardness to ensure the integrity and stability of the guide member 2 structure.

[0057] Guide member 2 has an insertion end facing the battery cell 400 and an inlet end facing away from the battery cell 400, see [reference]. Figure 3 and Figure 4Each guide member 2 is rotatably connected to the mounting base 1 via a connecting section 21. For example, the connecting section 21 is rotatably connected to the mounting base 1 via a bearing 3 or a rotating shaft, facilitating the closing of multiple guide members 2. When in the closed state, the circumferential dimension of the insertion part 23 decreases, making it easier for the insertion end on the insertion part 23 to be inserted into the center hole of the battery cell 400. Figure 10 As shown.

[0058] The guide 2's inlet end can have an opening larger than the core rod. The core rod 500 is inserted into the guide 2 through the inlet end opening and can push the multiple insertion segments 22 to spread out, that is, to open up the multiple guides 2, so that the core rod 500 can pass through the guides 2 and enter the center hole of the battery cell. Since the multiple insertion segments 22 are spaced between the core rod 500 and the inner wall of the center hole of the battery cell 400, direct contact between the end edge of the core rod 500 and the inner wall of the center hole is avoided, thus preventing damage to the battery cell and ensuring the integrity of the battery cell structure.

[0059] For example, the inner wall of the center hole of the battery cell 400 is the innermost diaphragm. By using the insertion section 22 between the core rod 500 and the inner wall of the center hole of the battery cell 400, the end of the core rod 500 can be prevented from scratching the innermost diaphragm when it is inserted into the inner wall of the center hole of the battery cell 400.

[0060] In the above embodiment, the insertion segments 22 of multiple guide members 2 form an annular insertion portion 23, and the multiple insertion segments 22 form a guide channel that matches the core rod, so that when the core rod is inserted into the center hole of the battery cell through the guide channel, it always moves along the central axis formed by the center of the multiple guide members 2, thus ensuring the accuracy of the core rod 500 being inserted into the center hole of the battery cell 400.

[0061] After the core rod 500 is inserted into the center hole of the battery cell 400, or after the core rod 500 extends out of the insertion section 22, the insertion part 23 can be removed from the center hole of the battery cell 400 to ensure the structural integrity of the battery cell 400 and the core rod 500.

[0062] In one embodiment, the connecting segments 21 of the multiple guide members 2 are connected to the mounting base 1 at equal intervals, so that while the multiple guide members 2 maintain the same structure, the multiple guide members 2 can be accurately closed and opened.

[0063] In one embodiment, see Figure 4 and Figure 5The mounting base 1 includes a support 11 and multiple mounting bases 12. The support 11 is provided with multiple slots, and the connecting section 21 is inserted into the slots. The side wall of the slot is provided with a bearing 3, and the two sides of the connecting section 21 are provided with connecting shafts. The connecting shafts are embedded in the bearings 3 to facilitate the rotation of the guide member 2 relative to the support 11. The multiple mounting bases 12 and the support 11 are separately arranged, which facilitates the assembly of the guide member 2 with the support 11, and at the same time can hide the bearings 3 in the support 11 and the mounting bases 12, ensuring the compactness of the guide structure 100.

[0064] In one embodiment, the plug portion 23 has a closed state and an open state;

[0065] When the plug part 23 is in the closed state, the plug part 23 is used to insert into the hole of the battery cell; when the plug part 23 switches from the closed state to the open state, the core rod can be inserted into the center hole of the battery cell through the plug part 23.

[0066] In the above embodiments, when the plug-in portion 23 is in the closed state, its size is small, making it easier for the plug-in portion 23 to be inserted into the center hole of the battery cell, thus reducing the difficulty of insertion. When the plug-in portion 23 is inserted into the center hole of the battery cell, the central axis of the plug-in portion 23 is aligned with the central axis of the center hole of the battery cell. When it is necessary to insert a core rod, the plug-in portion 23 can switch to the open state under the push of the core rod 500, or the plug-in portion 23 can switch to the open state on its own, thereby allowing the core rod 500 to enter the center hole of the battery cell 400 through the plug-in portion 23, improving the convenience and flexibility of inserting the core rod 500 into the battery cell 400. When the core rod is inserted into the center hole of the battery cell, the core rod remains coaxial with the central axis of the center hole of the battery cell.

[0067] In some embodiments, see Figure 2 and Figure 3 A first guide channel 13 is formed in the mounting base 1, and a second guide channel 221 is formed in the insertion part 23. The first guide channel 13 and the second guide channel 221 are connected to each other.

[0068] In the above embodiments, the connection between the first guide channel 13 and the second guide channel 221 provides a clear insertion path and direction for the core rod 500, which helps the core rod 500 to be accurately inserted into the center hole of the cell 400, and avoids damage to the core rod 500 or affecting the efficiency of the core rod 500 being inserted into the cell 400 due to the offset of the core rod 500.

[0069] Specifically, when the core rod 500 enters the second guide channel 221, the core rod can abut against multiple plug sections 22 and cause the multiple plug sections 22 to be opened. The opened multiple plug sections 22 can be used to fix the diaphragm of the inner ring of the battery cell 400, so as to avoid the core rod 500 interfering with the edge of the diaphragm during the insertion process and causing insertion failure.

[0070] In one embodiment, when the plug portion 23 is in the closed state, a plurality of plug segments 22 form a circumferentially closed plug portion 23.

[0071] In the above embodiment, the circumferential dimension of the plug portion 23 in the closed state is reduced, which facilitates the insertion end on the plug portion 23 to be inserted into the central hole of the cell 400. Moreover, the multiple plug segments 22 are in contact with each other in the circumferential direction to form a circumferentially closed plug portion 23, which can prevent the gap edge between adjacent plug segments 22 from damaging the cell 400. Furthermore, in the closed state, the multiple plug segments 22 are tightly fitted to form a stable plug structure, which helps to ensure the reliability of the plug connection between the core rod 500 and the cell 400.

[0072] It is worth noting that the circumferentially closed plug-in portion 23 refers to the circumferential contact of adjacent plug-in segments 22. In actual operation, if there are still gaps in some positions when adjacent plug-in segments 22 are in contact in the circumferential direction, it also belongs to the circumferentially closed plug-in portion 23 described in the embodiments of this application.

[0073] In another embodiment, the edge of the plug segment 22 can be chamfered, which can prevent the edge of the plug segment 22 from damaging the cell 400 even when a gap is formed between adjacent plug segments 22.

[0074] In the above embodiment, the guide member 2 has an insertion end facing the battery cell 400 and an inlet end facing away from the battery cell 400. When the plug-in part 23 is in the closed state, the insertion end can be closed so that the insertion end on the plug-in part 23 can be inserted into the center hole of the battery cell 400; or the insertion end can have a small opening so that multiple plug-in segments 22 can be opened by the core rod 500.

[0075] In one embodiment, the outer surface of the plug segment 22 forms a first arc surface 222, and the outer surfaces of multiple plug segments 22 can form a conical surface or a circular surface.

[0076] In the above embodiments, the center hole of the battery cell 400 is generally a circular hole. The setting of the first arc surface 222 makes the insertion segment 22 smoother when it is inserted into the center hole of the battery cell 400, reduces the frictional resistance between the insertion segment 22 and the battery cell 400, and avoids damage to the battery cell 400.

[0077] See Figure 6 The structure of the first arc surface 222 makes the force between the plug section 22 and the inner wall of the center hole of the battery cell 400 more uniform, avoiding deformation of the battery cell caused by uneven force on the inner wall of the center hole of the battery cell 400.

[0078] In one embodiment, see Figure 6In the direction in which the battery cell is inserted into the connector 23, the radius of the first arc surface 222 gradually decreases; or,

[0079] In the direction in which the battery cell is inserted into the connector 23, the radius of the first arc surface 222 is equal.

[0080] In the above embodiment, as the radius of the first arc surface 222 gradually decreases, the plug segment 22 can form a tapered plug segment 22. When the plug part 23 needs to be inserted into the battery cell, multiple plug segments 22 form a tapered plug part 23. The first arc surface 222 with a gradually decreasing radius can more effectively guide the plug part 23 into the center hole of the battery cell, so that the plug part 23 can be positioned to the center hole of the battery cell more quickly and accurately.

[0081] Specifically, the tapered feature of the connector 23 allows for better adaptation to deviations between the connector 23 and the center hole of the battery cell. In other words, even if the entrance to the center hole is not perfectly aligned with the connector 23, the tapered structure, through its gradually decreasing outer diameter, can guide the connector 23 into the center hole through a degree of self-adjustment. This improves the insertion tolerance and reduces the risk of failure to insert smoothly or damage to the center hole of the battery cell due to deviations in the connector 23.

[0082] In the above embodiment, when the radii of the first arc surface 222 are equal, the multiple plug segments 22 can form a cylindrical plug portion 23 when they are in circumferential contact, and can also be plugged into the circular central hole in the battery cell when the plug portion 23 moves.

[0083] In one embodiment, the inner surface of the plug segment 22 forms a second arc surface 223, and the inner surfaces of multiple plug segments 22 can form a conical surface or a circumferential surface.

[0084] In the above embodiments, since the core rod 500 is generally a cylindrical rod, the setting of the second arc surface 223 can reduce the frictional resistance of the core rod 500 being inserted into the insertion part 23, making the process of the core rod 500 entering the insertion part 23 faster and more efficient.

[0085] In one embodiment, see Figure 7 In the direction in which the battery cell is inserted into the connector 23, the radius of the second arc surface 223 gradually decreases; or,

[0086] In the direction in which the battery cell is inserted into the connector 23, the radius of the second arc surface 223 is equal.

[0087] In the above embodiment, as the radius of the second arc surface 223 gradually decreases, the plug segment 22 forms a plug segment 22 with an internal taper, which facilitates the insertion of the core rod 500 into the second guide channel 221 formed by multiple plug segments 22, and enables the multiple plug segments 22 to be spread out, thereby improving the efficiency of the core rod 500 entering the center hole of the cell 400 through the guide member 2.

[0088] In the above embodiment, when the radii of the second arc surface 223 are equal, the multiple plug segments 22 can form a cylindrical second guide channel 221 when they are in circumferential contact, and can also be plugged into the cylindrical second guide channel 221 when the mandrel 500 moves.

[0089] In some embodiments, the outer surface of the plug segment 22 forms a first arc surface 222, the inner surface of the plug segment 22 forms a second arc surface 223, and the thickness of the plug segment 22 can remain unchanged.

[0090] In the above embodiments, the arrangement of the first arc surface 222 and the second arc surface 223 enables the plug section to smoothly connect with the center hole of the external battery cell 400 and cooperate with the internal core rod 500 during the assembly process, thereby reducing the frictional resistance during pin insertion and improving the efficiency of pin insertion.

[0091] The taper formed by the first arc surface 222 and the second arc surface 223 can be the same, so that the thickness of the plug segment 22 remains unchanged, ensuring that the plug segment 22 has consistent structural strength throughout its length, and further improving its stability.

[0092] In some embodiments, see Figure 3 and Figure 4 The guide structure 100 also includes an elastic element 4, which is disposed on the mounting base 1 and abuts against the connecting section 21.

[0093] In the above embodiments, the elastic element 4 can be a spring, elastic rubber, or a spring plunger.

[0094] In the initial state, the elastic element 4 pushes the connecting section 21 away from the mounting base 1, so that the multiple plug sections 22 come closer to each other, making it easier for the multiple plug sections 22 to be inserted into the center hole of the battery cell 400.

[0095] The mandrel 500 is inserted into the guide 2 through the opening at the inlet end to push the multiple plug segments 22 to be opened. The elastic element 4 is further compressed. The elastic element 4 can provide a buffering effect for the plug segments 22 to be opened, ensuring the stability and reliability of the rotation of the guide 2.

[0096] In one embodiment, see Figure 2 and Figure 3The elastic element 4 is a spring plunger, which is screwed to the support 11 and abuts against the connecting section 21. The position of the plunger head of the spring plunger and the guide 2 can be adjusted by the spring plunger to maintain the stable operation of the guide 2.

[0097] In some embodiments, see Figures 8 to 10 This application provides a mandrel insertion mechanism, which includes a pin drive structure 200 and the aforementioned guide structure 100.

[0098] The pin drive structure 200 is connected to the guide structure 100 and is used to drive the insertion part 23 to move so that the insertion part 23 can be inserted into the center hole of the battery cell.

[0099] In the above embodiments, when the core rod 500 is inserted into the center hole of the battery cell 400, the guide structure 100 has multiple insertion segments 22 spaced between the core rod 500 and the inner wall of the center hole of the battery cell 400, which avoids direct contact between the core rod 500 and the inner wall of the center hole of the battery cell 400, thus preventing damage to the battery cell and ensuring the integrity of the battery cell structure.

[0100] The pin drive structure 200 ensures that the insertion part 23 of the guide structure 100 moves precisely along a predetermined trajectory and direction during the insertion into the center hole of the cell 400, providing a stable driving force to the guide structure 100, so that the insertion part 23 can be accurately and quickly positioned to the center hole of the cell 400, thereby improving the accuracy and efficiency of the pin.

[0101] In some embodiments, see Figure 8 and Figure 9 The pin drive structure 200 includes a pin base 201, a pin drive component 202, and a connector 203. The pin base 201 is fixedly disposed, the pin drive component 202 is disposed on the pin base 201, and the connector 203 is connected between the pin drive component 202 and the guide structure 100.

[0102] In the above embodiments, the pin base 201 serves as a fixed part, providing a stable foundation for the entire pin drive structure 200. The pin drive component 202, consisting of a motor, hydraulic cylinder, or pneumatic cylinder, is mounted on the pin base 201, ensuring the stability and reliability of the pin drive component 202 during operation. The connector 203 acts as a bridge connecting the pin drive component 202 and the guide structure 100, transmitting the driving force of the pin drive component 202 to the guide structure 100, further enhancing the structural stability of the entire pin drive structure 200.

[0103] In one embodiment, the pin drive 202 is a cylinder, and the cylinder is connected to the connector 203 which is fixedly assembled with the guide structure 100.

[0104] In the above embodiment, since the cylinder can output a relatively stable linear thrust, when the connector 203 drives the guide structure 100 to move, it can be ensured that the guide structure 100 moves at a uniform speed and with a stable force. This helps to avoid situations such as jamming or shaking of the guide structure 100 during insertion due to fluctuations in driving force, ensuring that the insertion portion 23 of the guide structure 100 can enter the center hole more smoothly and accurately.

[0105] In the initial state, the piston rod of the cylinder is in the retracted position. After the battery cell 400 is in place, the cylinder is activated, the piston rod of the cylinder extends and drives the insertion section 22 in the guide member 2 to be inserted into the center hole of the battery cell 400. Then, the push pin drive structure 300 pushes the core rod 500 from the guide member 2 into the center hole of the battery cell 400.

[0106] In some embodiments, see Figure 8 and Figure 9 The pin base 201 is provided with a guide groove 2011, and the guide structure 100 is movably disposed in the guide groove 2011.

[0107] In the above embodiment, the guide structure 100 is slidably connected to the pin base 201 via the guide groove 2011. The guide groove 2011 provides a clear path for the guide structure 100, ensuring that the plug part 23 can move along a predetermined trajectory when inserted into the center hole of the battery cell 400, thereby improving the plugging accuracy of the plug part 23 and preventing the plug part 23 from shifting or shaking during the insertion of the battery cell.

[0108] In some embodiments, see Figure 8 The core rod insertion mechanism also includes a push pin drive structure 300, which includes a push rod drive member 301 and a push rod 302. The push rod drive member 301 can drive the push rod 302 to move along the direction in which the core rod is inserted into the center hole of the cell.

[0109] In the above embodiments, the push rod drive 301 can be a motor or a cylinder. After the insertion section 22 is inserted into the center hole of the battery cell 400, the push rod drive 301 can ensure that the push rod 302 pushes the core rod to be accurately and stably inserted into the center hole of the battery cell 400 by precisely controlling the movement of the push rod 302.

[0110] This application provides a battery cell manufacturing apparatus, which includes the aforementioned guide structure 100; or,

[0111] This includes the aforementioned mandrel insertion mechanism.

[0112] In the above-described embodiments, the guide structure 100 of the battery cell manufacturing apparatus includes a mounting base 1 and multiple guide members 2. Each guide member 2 includes a connecting section 21 and a plug-in section 22. The guide member 2 is rotatably connected to the mounting base 1 via the connecting section 21. The multiple plug-in sections 22 form a plug-in portion 23, facilitating the core rod 500 to pass through the guide member 2 and enter the central hole of the battery cell. Because the multiple plug-in sections 22 are spaced between the core rod 500 and the inner wall of the central hole of the battery cell 400, direct contact between the core rod 500 and the inner wall of the central hole is avoided, preventing damage to the battery cell and ensuring the integrity of the battery cell structure. This also improves the manufacturing efficiency of the battery cell manufacturing apparatus.

[0113] Although specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A guide structure, characterized by, The application relates to a guiding structure (100) for a battery cell (400) and a battery cell inserting mechanism. The guiding structure (100) comprises a mounting base (1) and a plurality of guiding members (2), the guiding members (2) comprising connecting segments (21) and inserting segments (22), the connecting segments (21) being rotatably connected to the mounting base (1), and the inserting segments (22) surrounding an inserting part (23). The inserting part (23) has a folded state and an expanded state.

2. The guide structure of claim 1, wherein, When the inserting part (23) is in the folded state, the inserting part is used for being inserted into a hole of the battery cell (400); when the inserting part (23) is switched from the folded state to the expanded state, a core rod (500) can be inserted into a center hole of the battery cell (400) through the inserting part. A first guiding channel (13) is formed in the mounting base (1), a second guiding channel (221) is formed in the inserting part (23), and the first guiding channel (13) and the second guiding channel (221) are oppositely communicated.

3. The guide structure of claim 1, wherein, When the inserting part (23) is in the folded state, the inserting segments (22) surround a circumferentially closed inserting part (23).

4. The guide structure of claim 1, wherein, An outer surface of the inserting segment (22) forms a first arc surface (222).

5. The guide structure of claim 1, wherein, In a direction in which the inserting part (23) is inserted into the battery cell, the radius of the first arc surface (222) gradually decreases; or 6. The guide structure of claim 5, wherein, In the direction in which the inserting part (23) is inserted into the battery cell, the radius of the first arc surface (222) is equal. An inner surface of the inserting segment (22) forms a second arc surface (223).

7. The guide structure of claim 1, wherein In the direction in which the inserting part (23) is inserted into the battery cell, the radius of the second arc surface (223) gradually decreases; or 8. The guide structure of claim 7, wherein, In the direction in which the inserting part (23) is inserted into the battery cell, the radius of the second arc surface (223) is equal. An elastic member (4) is arranged on the mounting base (1) and abuts against the connecting segment (21).

9. The guide structure of claim 1, wherein, The application further relates to a battery cell inserting mechanism comprising the guiding structure (100) and a pin driving structure (200).

10. A mandrel insertion mechanism characterized by, The pin driving structure (200) is connected to the guiding structure (100) and used for driving the inserting part (23) to move. The pin driving structure (200) comprises a pin base (201), a pin driving member (202) and a connecting member (203), the pin base (201) is fixedly arranged, the pin driving member (202) is arranged on the pin base (201), and the connecting member (203) is connected between the pin driving member (202) and the guiding structure (100).

11. The mandrel insertion mechanism of claim 10, wherein, A guiding groove (2011) is arranged on the pin base (201), and the guiding structure (100) is movably arranged in the guiding groove (2011).

12. The mandrel insertion mechanism of claim 11, wherein, The application further relates to a pin driving structure (300) comprising a push rod driving member (301) and a push rod (302), the push rod driving member (301) can drive the push rod (302) to move in a direction in which a core rod is inserted into a center hole of a battery cell.

13. The mandrel insertion mechanism of claim 10, wherein, The application further relates to a battery cell inserting mechanism comprising the guiding structure (100); or 14. An electrode manufacturing apparatus, characterized by comprising: The application further relates to a battery cell inserting mechanism comprising the guiding structure (100). ​

Images