Pole piece flattening device and manufacturing equipment of battery monomer

Abstract

The utility model discloses a pole piece flattening device and manufacturing equipment of a battery monomer. The pole piece flattening device comprises an air blowing assembly and an induction assembly, the air blowing assembly comprises an air blowing pipe and a fixing block, and the air blowing pipe is detachably connected with the fixing block. The fixing block is used for connecting a gas supply source, and the gas blowing pipe is used for blowing gas to the surface of the electrode plate. The sensing assembly is connected with the blowing assembly, and the sensing assembly is configured to be capable of detecting the contact state between the blowing pipe and the fixing block and converting the contact state into recognizable electric signals to be output. According to the electrode plate flattening device, loosening and falling of the blowing assembly can be found in time, the winding efficiency and accuracy of the electrode plate are improved, the risk that the electrode plate is wrinkled and broken due to the fact that the electrode plate collides with the winding needle is reduced, and therefore the production efficiency and the yield of single batteries are improved.

Description

Technical Field

[0001] The present application relates to the field of batteries, and in particular to a pole piece smoothing device and a manufacturing device for battery cells. Background Art

[0002] Batteries are widely used in various electronic devices, such as mobile phones, laptops, electric vehicles, electric aircraft, electric ships, electric toy cars, electric toy aircraft, electric toy ships, power tools and energy storage systems.

[0003] As battery applications become more widespread, the production efficiency and yield rate of battery cells need to be further improved. The electrode assembly is one of the key components for converting electrical and chemical energy in a battery cell. To increase the energy density of the battery cell, the electrode assembly needs to be wound. Improving the efficiency of the winding process can improve the production efficiency and yield rate of the battery cell, so improvements are needed to this process. Utility Model Content

[0004] In view of the above problems, the present application provides a pole piece smoothing device and a battery cell manufacturing equipment, which can timely detect the loosening and falling of the blowing assembly, improve the efficiency and accuracy of electrode pole piece winding, and reduce the risk of the electrode pole piece hitting the winding needle and causing the electrode pole piece to wrinkle or break, thereby improving the production efficiency and yield of the battery cell.

[0005] In a first aspect, the present application provides an electrode smoothing device comprising an air blowing assembly and a sensing assembly. The air blowing assembly comprises an air blowing pipe and a fixed block, the air blowing pipe and the fixed block being detachably connected. The fixed block is used to connect to a gas supply, and the air blowing pipe is used to blow air onto the surface of the electrode. The sensing assembly is connected to the air blowing assembly and is configured to detect the contact state between the air blowing pipe and the fixed block and convert the contact state into a recognizable electrical signal for output.

[0006] In the technical solution of the embodiments of the present application, a blow assembly is provided to blow air onto the surface of the electrode sheet, allowing the electrode sheet to enter the winding equipment at a preset angle, reducing the risk of collision between the electrode sheet and the winding equipment during the winding process. The blow pipe is detachably connected to the fixed block, facilitating replacement of the blow pipe to accommodate varying blowing requirements. Connecting the blow pipe to the gas supply via the fixed block facilitates connection, improves the stability of the blow pipe's position, and enhances the accuracy of the blow pipe's targeted blowing. A sensing assembly is provided on the blow assembly to promptly detect the contact status between the blow pipe and the fixed block, improving detection sensitivity. Furthermore, the sensing assembly converts the contact status between the blow pipe and the fixed block into an electrical signal output. This electrical signal allows monitoring personnel to monitor the contact status between the blow pipe and the fixed block in real time, allowing them to promptly adjust the connection between the blow pipe and the fixed block, reducing the risk of collision between the electrode sheet and the winding equipment due to untimely blowing. This improves the stability of the electrode sheet winding process, thereby enhancing battery cell production efficiency and yield.

[0007] In some embodiments, the sensing component includes a detection block and a sensor. The detection block is provided on the air blowpipe, and the sensor is provided on the fixed block. The sensor can send a first signal to the detection block and obtain a second signal returned from the detection block. In the above structure, the sensor can actively send a first signal to the detection block and receive a second signal returned from the detection block. This instant signal exchange enables the system to monitor changes in the contact state of the air blowpipe in real time, thereby achieving precise control and rapid response. In addition, the sensor and the detection block exchange information through signal transmission rather than direct contact, which can reduce mechanical wear and contamination, making maintenance simpler and more convenient.

[0008] In some embodiments, the sensor includes at least one of a photoelectric sensor, an ultrasonic sensor, or a magnetic induction sensor. The above-mentioned sensor has the advantages of high sensing efficiency, high accuracy, and easy installation, and can well adapt to the detection of the contact state of the blowpipe.

[0009] In some embodiments, the sensing assembly further includes an alarm device electrically connected to the sensor. In the above structure, the alarm device is provided to promptly remind monitoring personnel to adjust the status of the air blowpipe, thereby reducing the risk of accidents during the winding process of the electrode sheet and improving the winding efficiency of the electrode sheet.

[0010] In some embodiments, the pole piece smoothing device further comprises a mounting seat connected to the fixing block, and a mounting hole is provided on the mounting seat. In the above structure, the installation of the mounting seat can fix the blowing assembly to a fixed position, thereby improving the stability of the blowing smoothing process.

[0011] In some embodiments, the fixing block is provided with a first receiving groove for receiving the sensor. In the above structure, the first receiving groove can accommodate the sensor while reducing the impact of the external environment on the sensor, thereby improving the accuracy of the detection process.

[0012] In some embodiments, the detection block includes a connecting portion and a sensing portion. The connecting portion is connected to the air tube. The sensing portion is connected to the connecting portion and protrudes along the outer periphery of the connecting portion, with the sensing portion being arranged toward the sensor. In the above structure, the detection block is stably connected to the air tube by providing the connecting portion, and the sensing portion is provided to directly and sensitively reflect the first signal sent by the sensor, thereby improving the accuracy and sensitivity of signal detection. In addition, the design of the connecting portion and the sensing portion has a certain degree of flexibility. The detection block can adapt to air tubes and sensors of different models and specifications, thereby improving its versatility and practicality.

[0013] In some embodiments, the fixed block is provided with a second receiving slot, one end of the air tube is positioned within the second receiving slot, the second receiving slot and the first receiving slot are spaced apart along a first direction, and the sensing portion is positioned on one side of the first receiving slot along a second direction, where the second direction intersects the first direction. In this structure, the provision of the second receiving slot allows for a detachable connection between the air tube and the fixed block, improving the ease of connecting the air tube. Furthermore, placing the air tube in close proximity to the sensor can improve detection accuracy.

[0014] In some embodiments, the cross-sectional area of ​​the sensing portion gradually decreases as the second receiving slot approaches the first receiving slot. In the above structure, designing the end of the sensing portion as a gradually tapering tip can improve sensing accuracy. Even if there is angular rotation between the air tube and the fixed block, it can be detected in a timely manner, thereby improving detection accuracy.

[0015] In some embodiments, the connecting portion includes a connecting ring, two fixing plates and a connecting rod. The connecting ring is arranged along the circumference of the air blowing tube. The connecting ring is provided with an opening, and the sensing portion is connected to the side of the connecting ring away from the opening. Two fixing plates are connected to the connecting ring, and the two fixing plates are connected to the opening. Two first through holes are provided on the fixing plate, and the two first through holes are arranged opposite to each other. The connecting rod passes through the two first through holes to connect the two fixing plates. In the above structure, the connecting ring is arranged around the periphery of the air blowing tube, which increases the connection area between the connecting portion and the air blowing tube and improves the stability of the connection. A first through hole is provided on the fixing plate, which can accommodate the connecting rod. The connecting rod connects the two fixing plates through the first through hole, thereby closing the opening of the connecting ring, improving the connection strength between the connecting portion and the air blowing tube, and improving the accuracy and stability of the detection of the sensing component.

[0016] In some embodiments, the end surface of the fixing block along the first direction is inwardly concave to form a connecting groove, which extends along the first direction to communicate with the second receiving groove. The fixing block is also provided with a second through-hole extending along a third direction, which is connected to the connecting groove. The third direction intersects the plane of the first and second directions. The fixing block also includes a connector that extends through the second through-hole to connect the air blowing tube to the fixing block.

[0017] In the above structure, the connection groove forms an opening along the first direction on the fixed block. Adjusting the size of the opening allows for adjusting the connection strength between the blowpipe and the fixed block. A second through-hole is provided on the fixed block, allowing the opening to be sealed with a connector, thereby enhancing the connection strength between the blowpipe and the fixed block. This improves the stability of the connection between the blowpipe and the fixed block, and enhances the stability of the blowpipe's smoothing process.

[0018] In some embodiments, the air blowing tube is provided with a plurality of exhaust holes arranged sequentially along the second direction, and the plurality of exhaust holes are evenly spaced. In the above structure, the evenly spaced exhaust holes can evenly apply gas to the electrode sheet, stably attaching the entire electrode sheet to the winding device, reducing the risk of wrinkling and displacement of the electrode sheet, and improving the winding quality of the electrode sheet.

[0019] In some embodiments, the blowing assembly further comprises a sealing sleeve, which is sleeved outside the blowing pipe to seal part of the exhaust hole. In the above structure, the sealing sleeve is provided to adjust the exhaust volume and exhaust direction of the exhaust hole, thereby expanding the application range of the blowing assembly.

[0020] In a second aspect, the present application provides a battery cell manufacturing device, which includes the pole piece smoothing device in the above embodiment.

[0021] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The features, advantages and technical effects of exemplary embodiments of the present application will be described below with reference to the accompanying drawings.

[0023] Figure 1 A schematic structural diagram of a vehicle provided in some embodiments of the present application;

[0024] Figure 2 A schematic diagram of the exploded structure of a battery provided in some embodiments of the present application;

[0025] Figure 3A schematic structural diagram of a battery cell provided in some embodiments of the present application;

[0026] Figure 4 A schematic diagram of the structure of a pole piece smoothing device provided in some embodiments of the present application;

[0027] Figure 5 A schematic structural diagram of a pole piece smoothing device provided in some other embodiments of the present application;

[0028] Figure 6 A schematic diagram of the structure of a fixed block provided in some embodiments of the present application;

[0029] Figure 7 A schematic diagram of the structure of a detection block provided in some embodiments of the present application;

[0030] Figure 8 A schematic structural diagram of a fixed block provided in some embodiments of the present application.

[0031] DETAILED DESCRIPTION OF THE REFERENCE NUMERALS

[0032] 1. Vehicle; 2. Battery; 10. Electrode assembly; 20. Shell; 30. End cover; 40. Outer shell; 3. Controller; 4. Motor; 5. Box; 51. First box part; 52. Second box part; 53. Accommodation space; 6. Battery cell; X, first direction; Y, second direction; Z, third direction; 7. Pole piece smoothing device; 701. Blowing assembly; 702. Sensing assembly; 703. Blowing pipe; 704. Fixing block; 705. Detection block; 706. Sensor; 707. Mounting seat; 708. Mounting hole; 709. First accommodating groove; 710. Connecting part; 711. Sensing part; 712. Second accommodating groove; 713. Connecting ring; 714. Fixing plate; 715. First through hole; 716. Connecting groove; 717. Second through hole; 718. Exhaust hole; 719. Sealing sleeve. DETAILED DESCRIPTION

[0033] The following embodiments of the technical solution of the present application will be described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application and are therefore only examples and are not intended to limit the scope of protection of the present application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0035] In the description of the embodiments of this application, the technical terms "first" and "second" are used only to distinguish different objects and should not be understood to indicate or imply relative importance or implicitly specify the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0036] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0037] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0038] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0039] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do 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 a limitation on the embodiments of the present application.

[0040] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0041] The term "and / or" in this application simply describes an association between related objects, indicating that three possible relationships exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects are in an "or" relationship.

[0042] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, detailed descriptions of the same components in different embodiments are omitted. It should be understood that the thickness, length, width, and other dimensions of the various components in the embodiments of this application, as well as the overall thickness, length, width, and other dimensions of the integrated device shown in the drawings are merely illustrative and should not constitute any limitation on this application.

[0043] A battery cell typically consists of a housing and an electrode assembly housed within it. The electrode assembly is the primary reaction component within the battery cell, converting electrical energy into chemical energy. To increase the energy density of the battery cell, the electrode sheets are typically wound and shaped before being placed within the housing.

[0044] The electrode assembly includes an electrode sheet and a separator. When winding, the end of the electrode sheet is close to the winding equipment, and the rotation of the winding needle of the winding equipment drives the electrode sheet to rotate and wind. When the electrode sheet is wound, a blowing device is used to blow air to bring the electrode sheet close to the winding equipment, and then the electrode sheet is wound along a position tangent to the winding needle, thereby reducing the risk of the end of the electrode sheet hitting the winding needle. The blowing device includes an air pipe. The air pipe is prone to loosening or falling due to equipment vibration, loose assembly, etc., and then the air pipe blowing changes, causing the electrode sheet to hit the winding needle when it is rolled, resulting in product quality risks.

[0045] To address the aforementioned issues, embodiments of the present application provide a pole piece smoothing device. The device comprises an air blowing assembly that blows air onto the surface of the electrode piece, allowing the electrode piece to enter the winding machine at a preset angle, thereby reducing the risk of collision between the electrode piece and the winding machine during the winding process. The air blowing pipe is detachably connected to the fixed block, facilitating replacement of the air blowing pipe to accommodate varying air blowing requirements. The air blowing pipe is connected to the gas supply via the fixed block, facilitating connection and replacement. This device improves the stability of the air blowing pipe's position and the accuracy of its air delivery to the target location. A sensing assembly is provided on the air blowing assembly to promptly detect the contact status between the air blowing pipe and the fixed block, enhancing detection sensitivity. Furthermore, the sensing assembly converts the contact status between the air blowing pipe and the fixed block into an electrical signal output. This electrical signal allows monitoring personnel to obtain real-time information on the contact status between the air blowing pipe and the fixed block, enabling timely adjustment of the connection between the air blowing pipe and the fixed block. This reduces the risk of collision between the electrode piece and the winding machine due to untimely air blowing, thereby improving the stability of the electrode piece winding process and, consequently, the production efficiency and yield rate of battery cells.

[0046] In the embodiment of the present application, the battery cell may be a secondary battery. A secondary battery refers to a battery cell that can be continuously used by activating active materials by charging after the battery cell is discharged.

[0047] Battery cells may include but are not limited to lithium-ion battery cells, sodium-ion battery cells, sodium-lithium-ion battery cells, lithium metal battery cells, sodium metal battery cells, lithium-sulfur battery cells, magnesium-ion battery cells, nickel-hydrogen battery cells, nickel-cadmium battery cells, lead-acid battery cells, etc.

[0048] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell or a battery cell of other shapes. The prismatic battery cell includes a square shell battery cell, a blade-shaped battery cell, a polygonal battery, such as a hexagonal battery, etc. There is no special limitation in this application.

[0049] In some embodiments, the battery may be a battery pack, which includes a case and battery cells, wherein the battery cells or battery modules are housed in the case.

[0050] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0051] In some embodiments, the battery may be an energy storage device, including an energy storage container, an energy storage cabinet, and the like.

[0052] For the convenience of description, the following embodiments are described by taking a vehicle as an example of an electrical device.

[0053] Figure 1 A schematic structural diagram of a vehicle provided for some embodiments of the present application.

[0054] like Figure 1 As shown, a battery 2 is provided inside the vehicle 1, and the battery 2 can be provided at the bottom, head, or tail of the vehicle 1. The battery 2 can be used to power the vehicle 1, for example, the battery 2 can be used as an operating power source for the vehicle 1.

[0055] The vehicle 1 may further include a controller 3 and a motor 4 . The controller 3 is used to control the battery 2 to supply power to the motor 4 , for example, to meet the power requirements of the vehicle 1 during startup, navigation, and driving.

[0056] In some embodiments of the present application, the battery 2 can not only serve as the operating power source of the vehicle 1, but also serve as the driving power source of the vehicle 1, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1.

[0057] Figure 2Schematic diagram of the exploded structure of the battery provided in some embodiments of the present application.

[0058] The housing 5 is used to accommodate the battery cells 6 and can have various structures. In some embodiments, the housing 5 can include a first housing portion 51 and a second housing portion 52. The first housing portion 51 and the second housing portion 52 overlap each other and together define a storage space 53 for accommodating the battery cells. The second housing portion 52 can be a hollow structure with one end open. The first housing portion 51 is a plate-like structure. The first housing portion 51 overlaps the open side of the second housing portion 52 to form the housing 5 with the storage space 53. The first housing portion 51 and the second housing portion 52 can also be hollow structures with one end open. The open side of the first housing portion 51 overlaps the open side of the second housing portion 52 to form the housing 5 with the storage space 53. Of course, the first housing portion 51 and the second housing portion 52 can have various shapes, such as a cylinder, a rectangular parallelepiped, etc.

[0059] In order to improve the sealing performance after the first box body 51 and the second box body 52 are connected, a sealing member, such as a sealant, a sealing ring, etc., may also be provided between the first box body 51 and the second box body 52 .

[0060] Assuming that the first box portion 51 covers the top of the second box portion 52 , the first box portion 51 can also be referred to as an upper box cover, and the second box portion 52 can also be referred to as a lower box.

[0061] In the battery 2, there can be one or more battery cells 6. If there are multiple battery cells 6, the multiple battery cells 6 can be connected in series, in parallel, or in a hybrid connection. Hybrid connection refers to the multiple battery cells 6 being connected both in series and in parallel. The multiple battery cells 6 can be directly connected in series, in parallel, or in a hybrid connection, and then the entire battery cell 6 is housed in the housing 5. Of course, multiple battery cells can also be first connected in series, in parallel, or in a hybrid connection to form a battery module, and then the multiple battery modules are further connected in series, in parallel, or in a hybrid connection to form a single unit and housed in the housing 5.

[0062] In some optional embodiments, the battery cells 6 may also be directly accommodated in the box 5 to reduce the number of connecting components or supporting components required to form the battery module and improve the energy density of the battery 2.

[0063] For example, the battery cell 6 may be the smallest unit constituting the battery 2 .

[0064] Figure 3 A schematic structural diagram of a battery cell provided in some embodiments of the present application.

[0065] like Figure 3As shown, in some embodiments, the battery cell 6 includes a housing 40 and an electrode assembly 10 housed in the housing 40. In some embodiments, the battery cell 6 includes electrode terminals. The electrode terminals are electrically connected to the electrode assembly 10 for outputting or inputting electrical energy from the battery cell 6.

[0066] In some embodiments, the battery cell 6 further includes an electrolyte contained in the housing 40. The electrolyte conducts ions between the positive and negative electrodes and can be in liquid, gel, or solid form.

[0067] The housing 40 is used to encapsulate the electrode assembly 10 and other components, including the electrolyte. The housing 40 can be made of steel, aluminum, plastic (e.g., polypropylene), a composite metal (e.g., a copper-aluminum composite housing 40), or an aluminum-plastic film. The housing 40 can include an end cap 30 and a housing 20. The electrode terminals and the injection port are located on the end cap 30.

[0068] Please refer to Figures 4 to 6 , Figure 4 This is a schematic diagram of the structure of the electrode smoothing device provided in some embodiments of the present application. Figure 5 This is a schematic structural diagram of a pole piece smoothing device provided in some other embodiments of the present application. Figure 6 A schematic structural diagram of a fixed block provided in some embodiments of the present application.

[0069] As shown in the figure, the electrode smoothing device 7 provided in the embodiment of the present application includes an air blowing component 701 and a sensing component 702. The air blowing component 701 includes an air blowing pipe 703 and a fixed block 704, and the air blowing pipe 703 is detachably connected to the fixed block 704. The fixed block 704 is used to connect to the gas supply source, and the air blowing pipe 703 is used to blow air onto the surface of the electrode. The sensing component 702 is connected to the air blowing component 701, and the sensing component 702 is configured to detect the contact state between the air blowing pipe 703 and the fixed block 704, and convert the contact state into a recognizable electrical signal for output.

[0070] The air blowing assembly 701 is used to blow air onto the surface of the electrode sheet, guiding it toward the winding machine. By controlling the air blowing range and air volume, the direction and fit of the electrode sheet into the winding machine can be adjusted. The air blowing tube 703 is detachably connected to the fixing block 704, which can be a snap-on or threaded connection.

[0071] The fixing block 704 can be connected to a gas supply source, which can be compressed air, via a threaded or clipped connection. A connecting pipe connected to the gas supply source is provided on the fixing block 704. The connecting pipe communicates with the air blowing pipe 703 to allow gas to flow into the air blowing pipe 703. The fixing block 704 can be a block-shaped structure made of a material with a certain strength, which facilitates fixation and assembly and disassembly with other components. Compared to directly connecting the air blowing pipe 703 to the gas supply source, the provision of the fixing block 704 can improve ease of use and expand the scope of application.

[0072] The sensing component 702 converts the contact status into a recognizable electrical signal output, which can be connected to automated alarm equipment for rapid response. Upon detecting a contact anomaly, the system can immediately issue a warning and trigger appropriate emergency measures, such as pausing the winding process or adjusting the position of the air blow pipe 703. This effectively reduces the risk of collision between the electrode and the winding equipment due to untimely air blowing.

[0073] In the technical solution of the embodiment of the present application, a blowing assembly 701 is provided to blow gas to the surface of the electrode plate, so as to fit the electrode plate to the winding device and reduce the risk of collision between the electrode plate and the winding device during the winding process. The blowing pipe 703 is detachably connected to the fixed block 704, which can facilitate the replacement of the blowing pipe 703 to adapt to different blowing needs. The blowing pipe 703 is connected to the gas supply source through the fixed block 704, which can facilitate the connection of the gas supply source, improve the stability of the position of the blowing pipe 703, and improve the accuracy of the blowing pipe 703 blowing to the target position. The sensing assembly 702 is provided on the blowing assembly 701, which can timely detect the contact state between the blowing pipe 703 and the fixed block 704, thereby improving the sensitivity of the detection. In addition, the sensing component 702 can also convert the contact status between the blowing pipe 703 and the fixed block 704 into an electrical signal output. The monitoring personnel can obtain the contact status between the blowing pipe 703 and the fixed block 704 in real time through the electrical signal, so as to timely adjust the connection between the blowing pipe 703 and the fixed block 704, reduce the risk of collision between the electrode sheet and the winding equipment due to untimely blowing, thereby improving the stability of the winding process of the electrode sheet, and improving the production efficiency and yield rate of the battery cell 6.

[0074] like Figure 5 As shown, in some embodiments of the present application, the sensing component 702 includes a detection block 705 and a sensor 706. The detection block 705 is disposed on the air blowing tube 703, and the sensor 706 is disposed on the fixed block 704. The sensor 706 can send a first signal to the detection block 705 and receive a second signal returned from the detection block 705.

[0075] As an active component, the sensor 706 sends a first signal to the detection block 705 through electricity, light, magnetism or other forms of energy. The first signal can be a pulse, a continuous wave or a specific coded sequence, depending on the needs of the system and the type of sensor 706. After receiving the first signal from the sensor 706, the detection block 705 processes the signal and generates a second signal in response. This second signal may contain information about the current state of the detection block 705, such as whether it is loose or whether the angle has changed. After receiving the second signal returned by the detection block 705, the sensor 706 decodes or converts it to extract useful information. This information can then be transmitted to a control system or an alarm device to remind monitoring personnel to adjust the connection status between the blowpipe 703 and the fixed block 704.

[0076] Therefore, in the above structure, the instantaneous signal exchange enables the system to monitor changes in the contact state of the air blow pipe 703 in real time, thereby achieving precise control and rapid response. Furthermore, the exchange of information between the sensor 706 and the detection block 705 via signal transmission rather than direct contact can reduce mechanical wear and contamination, making maintenance easier and more convenient.

[0077] In some embodiments of the present application, the sensor 706 includes at least one of a photoelectric sensor, an ultrasonic sensor, or a magnetic induction sensor.

[0078] Photoelectric sensors can accurately detect the presence, position, or motion of an object, and are highly accurate in detecting even small gaps or changes in contact between the air blowpipe 703 and the fixed block 704. Furthermore, photoelectric sensors have a relatively simple structure, are easy to install, and are easily integrated with control systems.

[0079] Ultrasonic sensors can detect objects at greater distances, making them suitable for applications requiring a larger detection range. Furthermore, ultrasonic waves can penetrate some non-metallic materials, such as plastic or rubber, allowing accurate detection even when the air tube 703 is slightly covered. This makes them suitable for detecting objects with complex structures.

[0080] The magnetic induction sensor can detect weak magnetic field changes and is very effective for detecting magnetic marks or magnetic materials on the air blowing tube 703. In addition, compared with other high-precision sensors, the magnetic induction sensor usually has a lower cost.

[0081] In summary, the above-mentioned sensors generally have the advantages of high sensing efficiency, high accuracy and easy installation, and can be well adapted to the detection of the contact status of the blowpipe.

[0082] In some embodiments of the present application, the sensing component 702 further includes an alarm device, which is electrically connected to the sensor 706 .

[0083] For example, the alarm device can be an audible alarm, a light alarm, or a remote alarm. An audible alarm uses a high-decibel siren to attract the attention of monitoring personnel; a light alarm uses flashing lights or LED displays to indicate abnormal conditions; and a remote alarm transmits the alarm signal to a remote monitoring center or the monitoring personnel's mobile device, enabling remote monitoring and immediate response. The design of the alarm device can take into account both ease of use and reliability, ensuring that monitoring personnel can promptly receive alarm information and take appropriate countermeasures.

[0084] In the above structure, the alarm device should be tightly integrated with the sensor 706, so that any abnormal conditions detected by the sensor 706 can be promptly and accurately transmitted to the alarm device. By providing the alarm device, monitoring personnel can be promptly reminded to adjust the status of the air blowpipe, thereby reducing the risk of accidents during the electrode sheet winding process and improving the winding efficiency of the electrode sheet.

[0085] In some embodiments of the present application, the pole piece smoothing device 7 further includes a mounting seat 707 , which is connected to the fixing block 704 , and a mounting hole 708 is provided on the mounting seat 707 .

[0086] The mounting base 707 is a plate-like or block-like structure. A reinforcement structure, such as ribs or increased wall thickness, may be added to the mounting base 707 to provide sufficient support, thereby reducing movement or deformation of the blowing assembly 701 due to vibration or external forces during operation, thereby improving the stability of the blowing and smoothing process.

[0087] Optionally, the mounting base 707 and the fixing block 704 are connected by a snap-fit ​​or threaded connection, or the mounting base 707 can be integrally formed with the fixing block 704. The mounting base 707 can be manufactured from a material with a certain structural strength, such as aluminum alloy, stainless steel, or high-strength plastic, to improve its structural strength and corrosion resistance. Pre-set mounting holes 708 in the mounting base 707 allow the blowing assembly 701 to be precisely fixed to a specified position. This precise positioning improves the accuracy and consistency of the blowing and smoothing process.

[0088] In the above structure, the blowing assembly 701 can be installed in a fixed position by providing the mounting seat 707, thereby improving the stability of the blowing and smoothing process.

[0089] like Figure 6 As shown, in some embodiments of the present application, a first accommodating groove 709 is provided on the fixing block 704 , and the first accommodating groove 709 is used to accommodate the sensor 706 .

[0090] First receiving groove 709 secures the position of sensor 706, improving assembly efficiency and detection accuracy. It provides a secure mounting base for sensor 706, reducing vibration or shaking caused by unstable installation, and improving the stability and accuracy of the detection process. Under extreme operating conditions, such as high-speed movement, impact, or vibration, first receiving groove 709 also provides a certain degree of cushioning and protection for sensor 706, reducing damage from direct force.

[0091] In the above structure, the first receiving groove 709 is provided to accommodate the sensor 706 while reducing the influence of the external environment on the sensor 706, thereby improving the accuracy of the detection process.

[0092] like Figure 4 as well as Figure 7 As shown, in some embodiments of the present application, the detection block 705 includes a connecting portion 710 and a sensing portion 711. The connecting portion 710 is connected to the air blowing tube 703. The sensing portion 711 is connected to the connecting portion 710 and protrudes along the outer periphery of the connecting portion 710, and is disposed toward the sensor 706.

[0093] Connecting portion 710 connects sensing portion 711 to air tube 703. The connection between connecting portion 710 and air tube 703 can be adhesively bonded, clipped, or threaded. Sensing portion 711 protrudes from the periphery of connecting portion 710 and faces sensor 706, enabling it to directly and sensitively reflect the first signal transmitted by sensor 706. Because sensing portion 711 and sensor 706 are close together and aligned, signal transmission experience minimal attenuation and interference, thereby improving the accuracy and sensitivity of signal detection.

[0094] Optionally, the sensing portion 711 may be made of a special material or structure to enhance signal reflection. For example, using a high-reflectivity metal material or designing a special reflective surface shape can further improve signal detection sensitivity. Alternatively, the sensing portion 711 may be made of multiple materials. When a change in the material of the sensing portion 711 is detected, a change in the angle between the air blow pipe 703 and the fixed block 704 can be determined.

[0095] In the above structure, the connection portion 710 provides a stable connection between the detection block 705 and the air blow tube 703, and the sensing portion 711 directly and sensitively reflects the first signal sent by the sensor 706, thereby improving the accuracy and sensitivity of signal detection. Furthermore, the design of the connection portion 710 and the sensing portion 711 offers a certain degree of flexibility, allowing the detection block 705 to accommodate air blow tubes 703 and sensors 706 of different models and specifications, thereby enhancing its versatility and practicality.

[0096] like Figure 6 As shown, in some embodiments of the present application, a second receiving groove 712 is provided on the fixing block 704, one end of the air blowing tube 703 is provided in the second receiving groove 712, the second receiving groove 712 and the first receiving groove 709 are spaced apart along the first direction X, and the sensing portion 711 is provided on one side of the first receiving groove 709 along the second direction Y, and the second direction Y is provided to intersect the first direction X. Exemplarily, the first direction X and the second direction Y are perpendicular to each other.

[0097] Second receiving slot 712 provides a removable connection point for air tube 703, securing its installation position. This also facilitates installation and replacement of air tube 703, improving maintenance efficiency. By placing one end of air tube 703 in second receiving slot 712 and spacing it from first receiving slot 709 along first direction X, a more rational layout between air tube 703 and sensor 706 is achieved, reducing attenuation and interference during signal transmission and improving detection accuracy.

[0098] In the above structure, the second receiving groove 712 is provided to detachably connect the air blowing tube 703 and the fixing block 704, thereby improving the connection convenience of the air blowing tube 703 and arranging the air blowing tube 703 and the sensor 706 at a position close to each other, thereby improving the accuracy of detection.

[0099] In some optional embodiments, the sensor 706 and the sensing portion 711 are spaced apart along the second direction Y. The above structure provides a transmission path for the first signal and the second signal of the sensor 706 , thereby improving detection efficiency and accuracy.

[0100] In some embodiments of the present application, the cross-sectional area of ​​the sensing portion 711 gradually decreases as the second receiving groove 712 moves toward the first receiving groove 709. In the above structure, designing the end of the sensing portion 711 as a gradually tapering tip can improve sensing accuracy. Even if there is angular rotation between the air blowing tube 703 and the fixing block 704, it can be detected in a timely manner, thereby improving detection accuracy.

[0101] like Figure 7 As shown, in some embodiments of the present application, the connecting portion 710 includes a connecting ring 713, two fixing plates 714, and a connecting rod. The connecting ring 713 is arranged along the circumference of the blowing tube 703. The connecting ring 713 has an opening, and the sensing portion 711 is connected to the side of the connecting ring 713 facing away from the opening. The two fixing plates 714 are connected to the connecting ring 713, and the two fixing plates 714 are connected to the opening. The fixing plate 714 is provided with two first through holes 715, and the two first through holes 715 are arranged opposite to each other. The connecting rod passes through the two first through holes 715 to connect the two fixing plates 714.

[0102] In the above structure, the connecting ring 713 is arranged around the outer circumference of the air blow tube 703, increasing the connection area between the connecting portion 710 and the air blow tube 703 and improving the stability of the connection. The fixing plate 714 is provided with a first through hole 715, which can accommodate a connecting rod. The connecting rod connects the two fixing plates 714 through the first through hole 715, thereby closing the opening of the connecting ring 713, improving the connection strength between the connecting portion 710 and the air blow tube 703, and enhancing the accuracy and stability of the detection of the sensing component 702.

[0103] like Figure 6 as well as Figure 8 As shown, in some embodiments of the present application, the end surface of the fixed block 704 along the first direction X is concave to form a connecting groove 716, which extends along the first direction X to communicate with the second receiving groove 712. The fixed block 704 is also provided with a second through hole 717 extending along a third direction Z. The second through hole 717 is connected to the connecting groove 716. The third direction Z intersects the plane of the first direction X and the second direction Y. Exemplarily, the third direction Z is perpendicular to the plane of the first direction X and the second direction Y. The fixed block 704 also includes a connector that passes through the second through hole 717 to connect the air blowing tube 703 to the fixed block 704.

[0104] By forming a connecting groove 716 inwardly on the end surface of the fixed block 704 and extending along the first direction X to communicate with the second receiving groove 712, an adjustable opening area is formed on the fixed block 704. This opening area can adjust the connection tightness between the air blow pipe 703 and the fixed block 704 according to actual needs. A larger opening facilitates the installation of the air blow pipe 703, while a smaller opening improves the connection strength between the air blow pipe 703 and the fixed block 704, thereby tightly connecting the air blow pipe 703 to the fixed block 704. A second through hole 717 penetrates the fixed block 704 along the third direction Z and communicates with the connecting groove 716. A connecting member (such as a bolt, pin, etc.) is passed through the second through hole 717 to close the opening of the connecting groove 716, thereby enhancing the connection strength between the air blow pipe 703 and the fixed block 704. Through the tightening action of the connecting member, the air blow pipe 703 is firmly locked to the fixed block 704. This firm connection not only improves the stability of the blowing tube 703 during the blowing and smoothing process, but also reduces the risk of loosening or falling off due to vibration or external force.

[0105] In the above structure, the connection groove 716 is provided to form an opening on the fixed block 704 along the first direction X. By adjusting the size of the opening, the connection strength between the air blow pipe 703 and the fixed block 704 can be adjusted. A second through hole 717 is provided on the fixed block 704, which can be closed by a connector, thereby improving the connection strength between the air blow pipe 703 and the fixed block 704. This improves the stability of the connection between the air blow pipe and the fixed block 704, and enhances the stability of the air blow pipe 703 during the smoothing process.

[0106] like Figure 5 As shown, in some embodiments of the present application, the air blowing tube 703 is provided with a plurality of exhaust holes 718 arranged sequentially along the second direction Y, and the plurality of exhaust holes 718 are evenly spaced. In the above structure, the evenly spaced exhaust holes 718 can evenly apply gas to the electrode sheet, stably attaching the entire electrode sheet to the winding device, reducing the risk of wrinkling and displacement of the electrode sheet, and improving the winding quality of the electrode sheet.

[0107] By evenly spacing the exhaust holes 718, the gas blown out of the air pipe 703 can be evenly distributed on the surface of the electrode plate. This evenly distributed gas flow can avoid localized excessive or insufficient pressure, thereby ensuring that the electrode plate is subjected to uniform force as a whole.

[0108] The uniform gas force helps to stably fit the electrode sheet on the winding equipment. During the winding process, the electrode sheet needs to remain flat and tightly fit on the winding shaft to reduce the risk of wrinkling, displacement and other problems in the electrode sheet.

[0109] The number and spacing of vent holes 718 are determined based on the electrode sheet's size and material, as well as the specific requirements of the winding equipment. Too many vent holes 718 can result in excessive gas flow, increasing energy consumption and noise; too few vent holes 718 may not provide sufficient smoothing force. Therefore, a reasonable number and spacing are key to ensuring effective venting.

[0110] The exhaust holes 718 are sequentially arranged along the second direction Y. For example, the second direction Y can be the width direction of the electrode plate. By properly selecting the direction of the exhaust holes 718, the gas force is aligned with the force direction of the electrode plate, thereby improving the winding effect.

[0111] In some embodiments of the present application, the blowing assembly 701 further includes a sealing sleeve 719 , which is sleeved on the outside of the blowing tube 703 to seal part of the exhaust hole 718 .

[0112] Exemplarily, the sealing sleeve 719 is a rubber sealing sleeve. The design of the sealing sleeve 719 can enhance the adaptability and flexibility of the blowing assembly 701. For example, during the manufacturing process of battery cells 6, different batches or models of battery cells 6 may require blowing support of varying strengths and directions. By adjusting the position and number of the sealing sleeves 719, such adjustments can be achieved without having to replace the entire blowing assembly 701. This not only reduces production costs and maintenance difficulties, but also improves production efficiency and product quality.

[0113] In the above structure, the sealing sleeve 719 is provided to adjust the exhaust volume and exhaust direction of the exhaust hole 718, thereby expanding the applicable scope of the blowing component 701.

[0114] In some optional embodiments, the electrode smoothing device 7 includes a blowing component 701 and a sensing component 702. The blowing component 701 includes a blowing pipe 703 and a fixed block 704, and the blowing pipe 703 is detachably connected to the fixed block 704. The fixed block 704 is used to connect to a gas supply source, and the blowing pipe 703 is used to blow air onto the surface of the electrode. The sensing component 702 is connected to the blowing component 701, and the sensing component 702 is configured to detect the contact state between the blowing pipe 703 and the fixed block 704, and convert the contact state into a recognizable electrical signal for output. The sensing component 702 includes a detection block 705 and a sensor 706. The detection block 705 is provided on the blowing pipe 703, and the sensor 706 is provided on the fixed block 704. The sensor 706 is capable of sending a first signal to the detection block 705 and obtaining a second signal returned from the detection block 705. The sensing component 702 also includes an alarm device, which is electrically connected to the sensor 706. The fixed block 704 is provided with a first receiving groove 709 for accommodating the sensor 706. The detection block 705 includes a connecting portion 710 and a sensing portion 711. The connecting portion 710 is connected to the air blowing tube 703. The sensing portion 711 is connected to the connecting portion 710 and protrudes along the outer periphery of the connecting portion 710, facing the sensor 706. The fixed block 704 is provided with a second receiving groove 712. One end of the air blowing tube 703 is located in the second receiving groove 712. The second receiving groove 712 and the first receiving groove 709 are spaced apart along a first direction X. The sensing portion 711 is located on one side of the first receiving groove 709 along a second direction Y, which intersects the first direction X. The connecting portion 710 includes a connecting ring 713, two fixing plates 714, and a connecting rod. The connecting ring 713 is arranged along the circumference of the air blowing tube 703. The connecting ring 713 has an opening, and the sensing portion 711 is connected to the side of the connecting ring 713 facing away from the opening. Two fixing plates 714 are connected to the connecting ring 713 and connected to the opening. The fixing plates 714 have two first through holes 715 disposed opposite each other. A connecting rod passes through the two first through holes 715 to connect the two fixing plates 714.

[0115] An embodiment of the present application also provides a manufacturing device for a battery cell, which includes the electrode smoothing device 7 in the above embodiment. A blowing component 701 is provided in the electrode smoothing device 7 to blow gas to the surface of the electrode electrode, so that the electrode electrode enters the winding device at a preset angle, reducing the risk of collision between the electrode electrode and the winding device during the winding process. The blowing pipe 703 is detachably connected to the fixed block 704, which can facilitate the replacement of the blowing pipe 703 to adapt to different blowing needs. Connecting the blowing pipe 703 to the gas supply source through the fixed block 704 can facilitate the connection of the gas supply source, improve the stability of the position of the blowing pipe 703, and improve the accuracy of the blowing pipe 703 blowing to the target position. The sensing component 702 is provided on the blowing component 701, which can timely detect the contact state between the blowing pipe 703 and the fixed block 704, thereby improving the sensitivity of the detection. In addition, the sensing component 702 can also convert the contact status between the blowing pipe 703 and the fixed block 704 into an electrical signal output. The monitoring personnel can obtain the contact status between the blowing pipe 703 and the fixed block 704 in real time through the electrical signal, so as to timely adjust the connection between the blowing pipe 703 and the fixed block 704, reduce the risk of collision between the electrode sheet and the winding equipment due to untimely blowing, thereby improving the stability of the winding process of the electrode sheet, and improving the production efficiency and yield rate of the battery cell 6.

[0116] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. A pole piece smoothing device, characterized in that: include: The blowing assembly includes a blowing pipe and a fixing block, wherein the blowing pipe is detachably connected to the fixing block, the fixing block is used to connect to a gas supply source, and the blowing pipe is used to blow air toward the surface of the electrode plate; The sensing component is connected to the blowing component, and is configured to detect the contact state between the blowing pipe and the fixing block, and convert the contact state into a recognizable electrical signal for output.

2. The pole piece smoothing device according to claim 1, characterized in that: The sensing component includes: A detection block is provided on the air blowing pipe; The sensor is provided on the fixed block, and the sensor is capable of sending a first signal to the detection block and obtaining a second signal returned from the detection block.

3. The pole piece smoothing device according to claim 2, characterized in that: The sensor includes at least one of a photoelectric sensor, an ultrasonic sensor, or a magnetic induction sensor.

4. The pole piece smoothing device according to claim 2, characterized in that: The sensing component further includes an alarm device, which is electrically connected to the sensor.

5. The pole piece smoothing device according to any one of claims 1 to 4, characterized in that: The pole piece smoothing device further comprises a mounting seat, the mounting seat is connected to the fixing block, and a mounting hole is provided on the mounting seat.

6. The pole piece smoothing device according to any one of claims 2 to 4, characterized in that: The fixing block is provided with a first accommodating groove, and the first accommodating groove is used to accommodate the sensor.

7. The pole piece smoothing device according to claim 6, characterized in that: The detection block includes: A connecting portion connected to the air blowing pipe; The sensing portion is connected to the connecting portion and protrudes along the outer periphery of the connecting portion. The sensing portion is arranged toward the sensor.

8. The pole piece smoothing device according to claim 7, characterized in that: A second accommodating groove is provided on the fixed block, one end of the blowing pipe is provided in the second accommodating groove, the second accommodating groove and the first accommodating groove are spaced apart along the first direction, the sensing part is provided on one side of the first accommodating groove along the second direction, and the second direction is intersected with the first direction.

9. The pole piece smoothing device according to claim 8, characterized in that: Along the direction from the second accommodating groove to the first accommodating groove, the cross-sectional area of ​​the sensing portion gradually decreases.

10. The pole piece smoothing device according to claim 8, characterized in that: The connecting portion includes: A connecting ring is arranged along the circumference of the blowing pipe, the connecting ring is provided with an opening, and the sensing portion is connected to a side of the connecting ring away from the opening; Two fixing plates connected to the connecting ring, the two fixing plates connected to the opening, the fixing plates being provided with two first through holes, the two first through holes being arranged opposite to each other; A connecting rod passes through the two first through holes to connect the two fixing plates.

11. The pole piece smoothing device according to any one of claims 8 to 10, characterized in that: The end surface of the fixing block along the first direction is concave to form a connecting groove, and the connecting groove extends along the first direction to communicate with the second receiving groove. The fixing block is further provided with a second through hole extending along a third direction, and the second through hole is communicated with the connecting groove. The third direction intersects with the plane where the first direction and the second direction are located. The fixing block further includes a connecting piece, which passes through the second through hole to connect the air blowing pipe and the fixing block.

12. The pole piece smoothing device according to any one of claims 8 to 10, characterized in that: The air blowing pipe is provided with a plurality of exhaust holes sequentially arranged along the second direction, and the plurality of exhaust holes are evenly spaced.

13. The pole piece smoothing device according to claim 12, characterized in that: The blowing assembly further includes a sealing sleeve, which is sleeved outside the blowing pipe and is used to block part of the exhaust hole.

14. A battery cell manufacturing device, characterized in that: It comprises a pole piece smoothing device as described in any one of claims 1-13.

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