Battery air extraction packaging device

Abstract

The application discloses a battery air extraction packaging device applied to a battery, wherein the battery is provided with a gas bag, the gas bag is provided with an opening, and the battery air extraction packaging device is characterized in that the battery air extraction packaging device comprises a battery fixing device, a packaging device and an air extraction device. The battery fixing device is used for positioning and fixing the battery. The packaging device is arranged above the battery fixing device and is used for packaging the gas bag. The air extraction device is arranged above the packaging device and is provided with an air extraction part and a sealing part. The air extraction part is used for extending into the opening to extract air from the gas bag. The sealing part is used for sealing the gas bag into which the air extraction part extends. Through the integrated functions of battery fixing, packaging and air extraction, efficient packaging and air extraction operations on the battery gas bag are realized, and the packaging quality and efficiency are improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery vacuum sealing device. Background Technology

[0002] In related technologies, the gas extraction and sealing process for soft-pack batteries typically relies on traditional integrated needle-punching and sealing equipment. Gas is extracted by piercing an aluminum-plastic film gas bag with a needle, and then sealed by heating the sealing head. However, existing technologies generally suffer from low gas extraction efficiency, mainly due to the small puncture area of ​​the gas bag, which limits the gas extraction speed and affects overall production efficiency. Furthermore, existing equipment has a complex structure and usually requires auxiliary devices such as gas-liquid separators, increasing equipment costs, making maintenance difficult, shortening service life, and impacting long-term economic viability.

[0003] Furthermore, the existing technology suffers from poor compatibility between the battery fixing device and the vacuuming device, making it difficult to adapt to the packaging requirements of batteries of different sizes and limiting the applicability of the equipment. During the vacuuming process, insufficient sealing between the vacuuming chamber and the battery can easily lead to incomplete vacuuming, resulting in residual gas inside the battery after packaging, which affects the battery's performance and stability.

[0004] In existing technologies, the encapsulation head structure design is unreasonable. It typically uses a single heating block to directly contact the battery surface, which can easily cause wrinkles or thermal damage to the battery surface, thus affecting the encapsulation quality and reducing the yield. At the same time, due to the lack of proper control over the gas extraction chamber, it is difficult to form a stable sealed small chamber during the gas extraction process, resulting in a further decrease in gas extraction efficiency.

[0005] Therefore, this solution suffers from the following technical problems: low vacuuming efficiency, high equipment maintenance costs, poor compatibility, incomplete vacuuming, poor sealing quality, complex equipment structure, and high production costs. To address these issues, it is necessary to propose a new vacuuming and sealing method for soft-pack batteries to improve vacuuming efficiency, simplify equipment structure, enhance compatibility, improve sealing quality, and reduce production costs. Summary of the Invention

[0006] Firstly, a battery degassing and sealing device is proposed, applied to a battery. The battery has an air bag with an opening. The device includes a battery fixing device for positioning and fixing the battery; a sealing device disposed above the battery fixing device for sealing the air bag; and a degassing device disposed above the sealing device, comprising a degassing component and a sealing component. The degassing component extends into the opening to degas the air bag, and the sealing component seals the air bag through the degassing component extending into the opening. The beneficial effect of the above solution is that by integrating battery fixing, sealing, and degassing functions, efficient sealing and degassing operations of the battery air bag are achieved, improving sealing quality and efficiency.

[0007] In conjunction with the first aspect above, in one possible implementation, the battery fixing device includes a fixing block having a groove for accommodating at least a portion of the battery.

[0008] In conjunction with the first aspect above, in one possible implementation, the width of the groove is 0mm-5mm larger than the width of the battery.

[0009] In conjunction with the first aspect above, in one possible implementation, the encapsulation device includes a driving device, a heat insulation plate, a heating block, and a sealing block. The heating block is connected to the heat insulation plate and the sealing block. The heat insulation plate is connected to the driving device and the heating block. The heat insulation plate, the heating block, and the sealing block are directly or indirectly connected to the driving device and are driven by the driving device to move in the horizontal direction.

[0010] In conjunction with the first aspect above, in one possible implementation, the driving device is a cylinder, the heat insulation plate is made of fiberglass or asbestos board, the heating block is made of copper, and the sealing block is made of platinum bronze.

[0011] In conjunction with the first aspect above, in one possible implementation, the encapsulation device includes two driving devices, two heat insulation plates, two heating blocks, and two sealing blocks. The two sealing blocks are symmetrical about a plane that is parallel to the large surface of the battery, passes through the center of the battery, and is perpendicular to the horizontal plane after the battery is fixed by the battery fixing device.

[0012] In conjunction with the first aspect above, in one possible implementation, the air extraction component is a needle, the air extraction device is equipped with a needle driving device, the needle is disposed on the needle driving device, and the needle is disposed above the packaging device.

[0013] In conjunction with the first aspect above, in one possible implementation, the air extraction device further includes an air extraction chamber, the sealing element is disposed in the air extraction chamber, and the needle is disposed in the air extraction chamber.

[0014] In conjunction with the first aspect above, in one possible implementation, the air extraction device further includes a chamber driving device. The air extraction chamber includes a left chamber and a right chamber. The left chamber and the right chamber are respectively provided with the sealing element and are respectively connected to a chamber driving device. The chamber driving device is used to drive the left chamber and the right chamber to move towards each other and abut against each other.

[0015] In conjunction with the first aspect above, in one possible implementation, the suction device further includes a suction chamber with a sealing element, the suction chamber being located above the battery packaging fixture and below the needle.

[0016] In conjunction with the first aspect above, in one possible implementation, the air extraction chamber is provided with a left movable chamber or a right movable chamber, and the left movable chamber and / or the right movable chamber is provided with a sealing element.

[0017] In conjunction with the first aspect above, in one possible implementation, the air extraction chamber is further provided with a chamber driving device. The air extraction chamber includes a left movable chamber and a right movable chamber. The left movable chamber and the right movable chamber are respectively connected to a chamber driving device. The chamber driving device is used to drive the left movable chamber and the right movable chamber to move towards each other and abut against each other.

[0018] In conjunction with the first aspect above, in one possible implementation, the suction device further includes an air tube connected to the needle.

[0019] In conjunction with the first aspect above, in one possible implementation, the trachea is connected to an external negative pressure device, which is used to provide negative pressure.

[0020] In conjunction with the first aspect above, in one possible implementation, the driving device, the needle driving device, and the chamber driving device are provided with a cylinder and / or an electric cylinder. Attached Figure Description

[0021] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0022] Figure 1 A view of a battery vacuum sealing device according to some embodiments;

[0023] Figure 2 Views of a packaging device according to some embodiments;

[0024] Figure 3 A view of a battery vacuum sealing device according to some embodiments;

[0025] Figure 4 A view of the left chamber of a battery vacuum sealing device according to some embodiments;

[0026] Figure 5 This is a view of the right chamber of a battery vacuum sealing device according to some embodiments.

[0027] Figure label:

[0028] 1-Fixing block; 2-Needle; 3-Sealing element; 4-Battery; 5-Air bag; 6-Drive device; 7-Heat insulation plate; 8-Heating block; 9-Sealing block; 10-Cylinder; 11-Suction chamber; 12-Left chamber; 13-Right chamber; 14-Channel drive device; 15-Suction movable chamber; 16-Left movable chamber; 17-Right movable chamber; 18-Needle drive device.

[0029] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0030] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0031] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. 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.

[0032] 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," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used 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. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0033] 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 according to the specific circumstances.

[0034] As mentioned in the background section, the existing battery fixing device and the vacuuming device have poor compatibility, making it difficult to adapt to the packaging requirements of batteries of different sizes and limiting the applicability of the equipment. During the vacuuming process, due to insufficient sealing between the vacuuming chamber 11 and the battery, incomplete vacuuming is prone to occur, resulting in residual gas inside the battery after packaging, which affects the performance and stability of the battery.

[0035] This application provides a battery vacuum sealing device, as shown in the figure. This device is applied to a battery 4, which has an air bag 5 with an opening. The device includes a battery fixing device, a sealing device, and a vacuum device. The battery fixing device is used to position and fix the battery 4. The sealing device is positioned above the battery fixing device and is used to seal the air bag 5. The vacuum device has a vacuuming component and a sealing component 3. The vacuuming component extends into the opening to vacuum the air bag 5, and the sealing component 3 seals the air bag 5 through the vacuuming component's insertion into the opening. In the above embodiment, vacuuming and sealing are completed by the vacuuming component and the sealing component 3, or the sealing component 3 seals the air bag 5 through the vacuuming component's opening. In some embodiments, the air bag 5 is an aluminum-plastic film. By sealing the air bag 5 through the vacuuming component's insertion into the opening with the sealing component 3, the airtightness of the air bag 5 during the vacuuming process is effectively improved, solving the problems of low vacuuming efficiency, high equipment maintenance costs, poor compatibility, and incomplete vacuuming. This solution reduces production costs and increases production efficiency by simplifying equipment structure, improving air extraction efficiency, enhancing compatibility, and improving sealing quality.

[0036] This application provides a vacuum sealing device for soft-pack batteries, as shown in the figure. The device includes a battery fixing device, a vacuum device, and a sealing device. In the above embodiment, the battery 4 is positioned and clamped through a groove structure, the vacuum efficiency is improved through a dual-chamber sealing structure, and the sealing quality is ensured through material optimization design. In some embodiments, the battery fixing device may include a fixing block 1 with a groove for accommodating at least a portion of the battery 4. This solution adapts to the installation requirements of batteries 4 of different sizes by making the groove width 0mm-5mm larger than the width of the battery 4, thus improving the compatibility of the device. In some embodiments, the groove width is 0mm-5mm larger than the width of the battery 4. This solution adapts to batteries 4 of different sizes through width adjustment, covering more than 5 battery 4 models, and improving the device's versatility by 35%.

[0037] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a battery fixing device, which comprises a fixing block 1 with a groove for accommodating at least a portion of the battery 4. In some embodiments, the width of the groove is 0mm-5mm wider than the width of the battery 4. This solution, through the flexible design of the groove width, adapts to batteries 4 of different sizes, improving the device's versatility.

[0038] In some embodiments, the fixing block 1 is made of aluminum alloy and is formed by CNC machining. The surface of the groove is anodized to achieve a hardness of HV300 or higher, ensuring that it will not deform during long-term use. In some embodiments, a rubber buffer layer with a thickness of 2mm is provided at the bottom of the groove to effectively prevent the battery 4 from being mechanically damaged. In some embodiments, the fixing block 1 is made of plastic to prevent the battery 4 from being damaged.

[0039] This application embodiment also provides a battery vacuum sealing device, as shown in the figure. The device includes a sealing device, which includes a driving device 6, a heat insulation plate 7, a heating block 8, and a sealing block 9. The heating block 8 is connected to the heat insulation plate 7 and the sealing block 9. The heat insulation plate 7 is connected to the driving device 6 and the heating block 8. The heat insulation plate 7, the heating block 8, and the sealing block 9 are directly or indirectly connected to the driving device 6 and are driven by the driving device 6 to move in the horizontal direction.

[0040] In some embodiments, the driving device 6 is a cylinder 10, the heat insulation plate 7 is made of fiberglass or asbestos board, the heating block 8 is made of copper, and the sealing block 9 is made of platinum bronze. This solution achieves precise control of the driving device 6 through the cylinder 10, the fiberglass or asbestos board has excellent heat insulation performance, the copper heating block 8 has high thermal conductivity, and the platinum bronze sealing block 9 has good wear resistance and high temperature resistance, thus achieving heat sealing of the air bag 5.

[0041] In some embodiments, the drive device 6 employs a servo cylinder 10, which has high stroke accuracy and, in conjunction with a PLC control system, enables adjustable encapsulation pressure. In some embodiments, the heat insulation plate 7 has a multi-layer composite structure, with an outer layer of asbestos board (5mm thick), a middle layer of fiberglass felt (3mm thick), and an inner layer of stainless steel plate (1mm thick), effectively blocking heat transfer to non-encapsulated areas.

[0042] In some embodiments, the heating block 8 is machined from a single copper block with a nickel-plated surface, resulting in a wide operating temperature range and a fast heating rate. In some embodiments, the sealing block 9 is cast from platinum bronze with a nitrided surface, resulting in high hardness and a long service life.

[0043] This application embodiment also provides a battery vacuum sealing device, as shown in the figure. The vacuum component is a needle 2. The vacuum device is provided with a needle driving device 18. The needle 2 is disposed on the needle driving device 18 and above the sealing device.

[0044] In some embodiments, the suction device further includes a suction chamber 11, a sealing element 3 disposed in the suction chamber 11, and a needle 2 disposed in the suction chamber 11. This design, through the provision of the suction chamber 11, improves the stability of the suction process and ensures that the air bag 5 is completely sealed.

[0045] In some embodiments, the suction chamber 11 is made of cast aluminum alloy with an internal guide groove. The needle 2 reciprocates within the chamber via a slider assembly, ensuring high stroke accuracy. In some embodiments, the needle 2 is made of 316 stainless steel with a mirror-polished surface, a diameter of 1.5 mm, a length of 20 mm, and a tip angle of 30°, ensuring it is not easily damaged when inserted into the air bag 5. In some embodiments, the needle drive device 18 uses a linear motor with a wide speed adjustment range, working in conjunction with a vacuum pressure sensor to achieve closed-loop control of the suction process.

[0046] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming device, which further includes a chamber driving device 14. The vacuuming chamber 11 includes a left chamber 12 and a right chamber 13. The left chamber 12 and the right chamber 13 are respectively provided with sealing elements 3 and are respectively connected to a chamber driving device 14. The chamber driving device 14 is used to drive the left chamber 12 and the right chamber 13 to move towards each other and abut against each other. This solution forms a sealed chamber through the opposite movement of the left chamber 12 and the right chamber 13. When the needle 2 is inserted into the air bag 5 to vacuum, in addition to the gas conduction between the needle 2 and the air bag 5, the opening of the air bag 5 is sealed by the sealing elements 3 abutting against each other. At this time, the rest of the air bag 5 is in a sealed state.

[0047] In some embodiments, the left chamber 12 and right chamber 13 adopt a symmetrical structural design and are equipped with a magnetic locking device inside. When the chambers are closed, they achieve automatic positioning through magnetic attraction. In some embodiments, the chamber driving device 14 adopts a servo cylinder 10, which, in conjunction with a displacement sensor, achieves precise control. In some embodiments, a sealing element 3 is provided on the contact surface of the left chamber 12 and right chamber 13. During the process of the air needle being inserted into the air bag 5 for air extraction, the sealing elements 3 of the left chamber 12 and right chamber 13 abut against each other at the opening of the air needle-launched air bag 5 to seal the air bag 5, ensuring that the air bag 5 is in a sealed state during air extraction and preventing the gas inside the air bag 5 from exchanging with the environment.

[0048] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit, which further includes a vacuuming chamber 15. The vacuuming chamber 15 is equipped with a sealing strip and is located above the battery sealing fixture and below the needle 2. This design uses the sealing strip to ensure that when the needle 2 is inserted into the air bag 5 for vacuuming, only the needle 2 and the air bag 5 are in a gas-conducting state; the rest of the air bag 5 remains sealed, preventing gas leakage during the vacuuming process and improving the vacuuming effect.

[0049] In some embodiments, the sealing strip is made of fluororubber, which has a wide temperature resistance range and a small percentage of compression set. In some embodiments, the vacuum chamber 15 is equipped with a guide post to cooperate with the battery packaging fixture to achieve precise alignment with small alignment error. In some embodiments, a pressure sensor is installed at the bottom of the vacuum chamber 15 to monitor the sealing status in real time and trigger an alarm mechanism when the pressure value is too low.

[0050] This application embodiment also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming device, which further includes a chamber driving device 14. The vacuuming movable chamber 15 includes a left movable chamber 16 and a right movable chamber 17. The left movable chamber 16 and the right movable chamber 17 are respectively connected to a chamber driving device 14. The chamber driving device 14 is used to drive the left movable chamber 16 and the right movable chamber 17 to move towards each other and abut against each other. This solution controls the movement of the left movable chamber 16 and the right movable chamber 17 through independent driving devices. During the process of the air needle extending into the air bag 5 to vacuum, the sealing member 3 of the left chamber 12 and the sealing member 3 of the right chamber 13 abut against each other at the opening of the air bag 5 to seal the air bag 5, ensuring that the air bag 5 is in a sealed state during vacuuming, achieving precise positioning and sealing of the battery 4 air bag 5, improving sealing and vacuuming efficiency. In some embodiments, the left movable chamber 16 and the right movable chamber 17 employ independent servo systems, achieving high synchronization control accuracy and automatic centering in conjunction with a visual positioning system. In some embodiments, the chamber drive device 14 is equipped with a buffer mechanism to prevent impact vibrations when the chambers close, thereby reducing equipment noise.

[0051] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit, which further includes an air tube connected to a needle 2. This design connects the needle 2 to an external negative pressure device via the air tube, ensuring the continuity of the vacuuming process and guaranteeing that the gas inside the air bag 5 is completely extracted. In some embodiments, the air tube is a silicone flexible tube with an inner diameter of 3mm, a pressure resistance of 0.1-0.6MPa, and a bending radius ≤50mm.

[0052] In some embodiments, a quick-connect fitting is provided at the air tube connection point, reducing the disassembly and assembly time to 5 seconds and improving equipment maintenance efficiency. In some embodiments, the outer layer of the air tube is covered with a metal shielding layer to prevent electromagnetic interference and ensure vacuum detection accuracy of ±0.5 kPa.

[0053] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit and an external negative pressure device connected to an air pipe. The negative pressure device provides negative pressure. This solution utilizes the high negative pressure performance of the external negative pressure device to quickly extract gas from the air bag 5, shortening the vacuuming time and improving production efficiency.

[0054] In some embodiments, the negative pressure device employs a vortex vacuum pump with an ultimate vacuum of 10⁻³ Pa, a pumping speed of 200 L / min, and a 25% reduction in energy consumption. In some embodiments, the negative pressure device is equipped with a pressure regulating valve, enabling precise control of the vacuum level within a small range. In some embodiments, the negative pressure device is linked to a PLC system, and the pumping time is automatically adjusted according to the battery capacity, thereby improving pumping efficiency.

[0055] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a drive unit 6, a needle drive unit 18, and a chamber drive unit 14, and is equipped with a cylinder 10 and / or an electric cylinder. This solution, through the combined drive of the cylinder 10 and the electric cylinder, balances rapid response and precise control, adapting to different operating conditions and improving the intelligence level of the equipment. In some embodiments, the drive unit adopts a pneumatic-electric hybrid drive system, with the cylinder 10 responsible for rapid positioning and the electric cylinder responsible for precise control, with a response time ≤0.5s.

[0056] In some embodiments, the electric cylinder is equipped with a servo motor and a planetary reducer, resulting in high positioning accuracy and high repeatability. In some embodiments, the drive unit integrates a sensor network to monitor parameters such as pressure, temperature, and displacement in real time, achieving adaptive control through edge computing.

[0057] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a sealing unit comprising two driving devices, two heat insulation plates 7, two heating blocks 8, and two sealing blocks 9. The plane parallel to the large surface of the battery 4, passing through the center of the battery 4, and perpendicular to the horizontal plane after the battery 4 is fixed by the battery fixing device is the plane of symmetry. The two sealing blocks 9 are symmetrical to each other. This solution achieves balance in the sealing process through dual driving devices and a symmetrical structure, avoiding a decrease in sealing quality caused by seal head misalignment and improving sealing stability. In some embodiments, the dual driving devices employ a synchronous belt drive system with a synchronization error ≤0.01mm, and a tension adjustment device ensures smooth movement. In some embodiments, the sealing blocks 9 of the symmetrical structure are provided with guide grooves, which cooperate with the edge of the battery 4 to achieve automatic centering with a centering error ≤0.05mm.

[0058] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a sealing unit comprising two driving devices, two heat insulation plates 7, two heating blocks 8, and two sealing blocks 9. The plane parallel to the large surface of the battery 4, passing through the center of the battery 4, and perpendicular to the horizontal plane after the battery 4 is fixed by the battery fixing device serves as the plane of symmetry. The two sealing blocks 9 are symmetrical to each other. This solution achieves balance in the sealing process through dual driving devices and a symmetrical structure, avoiding a decrease in sealing quality caused by seal head misalignment and improving sealing stability.

[0059] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit, which further includes a chamber driving device 14. The vacuum chamber 11 includes a left chamber 12 and a right chamber 13. The left chamber 12 and right chamber 13 are each connected to a chamber driving device 14. The chamber driving device 14 drives the left chamber 12 and right chamber 13 to move towards each other and abut against each other. This design forms a sealed small chamber through the opposite movement of the left chamber 12 and right chamber 13, ensuring the complete sealing of the air bag 5 during vacuuming and preventing gas leakage.

[0060] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming device, which further includes a vacuuming movable chamber 15. The vacuuming movable chamber 15 has a left movable chamber 16 or a right movable chamber 17, and the left movable chamber 16 and / or the right movable chamber 17 are provided with sealing strips. This solution, through the symmetrical design of the left movable chamber 16 and the right movable chamber 17, facilitates driving contact and achieves a sealed state of the air bag 5 during the vacuuming process.

[0061] In some embodiments, the left movable chamber 16 and the right movable chamber 17 are modularly designed, allowing for quick replacement according to the size of the battery 4, reducing replacement time to 3 minutes. In some embodiments, the sealing strip is equipped with a self-cleaning structure, using a scraper assembly to remove surface residues and maintain stable sealing performance.

[0062] In some embodiments, the vacuum chamber 15 is equipped with a vacuum detection interface, which can monitor the vacuuming effect in real time to ensure that the predetermined vacuum level requirement is met.

[0063] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit, which further includes a chamber driving device 14. The vacuuming movable chamber 15 comprises a left movable chamber 16 and a right movable chamber 17. The left movable chamber 16 and the right movable chamber 17 are each connected to a chamber driving device 14. The chamber driving device 14 drives the left movable chamber 16 and the right movable chamber 17 to move towards each other and abut against each other. This solution controls the movement of the left movable chamber 16 and the right movable chamber 17 through independent driving devices, achieving precise positioning and sealing of the battery 4 air bag 5, and improving vacuuming efficiency.

[0064] In some embodiments, limit switches are provided in the left movable chamber 16 and the right movable chamber 17 to prevent damage to the equipment due to overtravel. In some embodiments, the chamber drive device 14 is equipped with a fault diagnosis system that can monitor parameters such as motor temperature and current in real time and provide early warning of potential faults.

[0065] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming device, which further includes an air tube connected to a needle 2. This solution connects the needle 2 to an external negative pressure device through the air tube, achieving continuity of the vacuuming process and ensuring that the gas inside the air bag 5 is fully extracted.

[0066] In some embodiments, the air tube is equipped with a flow meter to monitor the air flow rate in real time. When the flow rate is lower than a set value, an alarm is automatically triggered to ensure the integrity of the air extraction process.

[0067] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a vacuuming unit and an external negative pressure device connected to an air pipe. The negative pressure device provides negative pressure. This solution utilizes the high negative pressure performance of the external negative pressure device to quickly extract gas from the air bag 5, shortening the vacuuming time and improving production efficiency.

[0068] In some embodiments, the negative pressure device employs a Roots pump + rotary vane pump combination system, reducing energy consumption. In some embodiments, the negative pressure device is equipped with a vacuum feedback control system, which maintains stable vacuum through PID regulation. In some embodiments, the negative pressure device is equipped with an automatic drainage mechanism to periodically drain condensate, preventing moisture from affecting the vacuum; the drainage cycle is adjustable.

[0069] This application also provides a battery vacuum sealing device, as shown in the figure. The device includes a drive unit 6, a needle drive unit 18, and a chamber drive unit 14, and is equipped with a cylinder 10 and / or an electric cylinder. This solution, through the combined drive of the cylinder 10 and the electric cylinder, balances rapid response and precise control, adapting to different operating conditions and improving the intelligence level of the equipment. In some embodiments, the cylinder 10 is a double-acting cylinder 10, used in conjunction with a solenoid valve to achieve rapid start and stop. In some embodiments, the electric cylinder is equipped with a high-precision encoder for high positioning accuracy. In some embodiments, the drive unit 6 integrates an Internet of Things (IoT) module, enabling remote monitoring of equipment status, receiving fault alarm information, and achieving predictive maintenance.

[0070] Finally, it should be noted that other embodiments of the invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein, and is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of the invention is limited only by the appended claims.

Claims

1. A battery vacuum sealing device, applied to a battery, wherein the battery is provided with an air bag, the air bag having an opening, characterized in that, include: A battery fixing device, used for positioning and fixing the battery; A sealing device is disposed above the battery fixing device and is used to seal the air bag; An air extraction device is disposed above the sealing device. The air extraction device is provided with an air extraction component and a sealing component. The air extraction component is used to extend into the opening to extract air from the air bag, and the sealing component is used to seal the air bag into which the air extraction component extends.

2. The battery vacuum sealing device according to claim 1, characterized in that, The battery fixing device includes a fixing block having a groove for accommodating at least a portion of the battery.

3. The battery vacuum sealing device according to claim 2, characterized in that, The width of the groove is 0mm-5mm wider than the width of the battery.

4. The battery vacuum sealing device according to claim 1, characterized in that, The encapsulation device includes a driving device, a heat insulation plate, a heating block, and a sealing block. The heating block is connected to the heat insulation plate and the sealing block. The heat insulation plate is connected to the driving device and the heating block. The heat insulation plate, the heating block, and the sealing block are directly or indirectly connected to the driving device and are driven by the driving device to move in the horizontal direction.

5. The battery vacuum sealing device according to claim 4, characterized in that, The driving device is a cylinder, the heat insulation plate is made of fiberglass or asbestos board, the heating block is made of copper, and the sealing block is made of platinum bronze.

6. The battery vacuum sealing device according to claim 5, characterized in that, The encapsulation device includes two driving devices, two heat insulation plates, two heating blocks, and two sealing blocks. The plane that is parallel to the large surface of the battery, passes through the center of the battery, and is perpendicular to the horizontal plane after the battery is fixed by the battery fixing device is the plane of symmetry. The two sealing blocks are symmetrical to each other.

7. The battery vacuum sealing device according to claim 1, characterized in that, The air extraction component is a needle, the air extraction device is equipped with a needle driving device, the needle is disposed on the needle driving device, and the needle is disposed above the packaging device.

8. The battery vacuum sealing device according to claim 7, characterized in that, The air extraction device further includes an air extraction chamber, the sealing element is disposed in the air extraction chamber, and the needle is disposed in the air extraction chamber.

9. The battery vacuum sealing device according to claim 8, characterized in that, The air extraction device further includes a chamber driving device. The air extraction chamber includes a left chamber and a right chamber. The left chamber and the right chamber are respectively provided with the sealing element and are respectively connected to a chamber driving device. The chamber driving device is used to drive the left chamber and the right chamber to move towards each other and abut against each other.

10. The battery vacuum sealing device according to claim 8, characterized in that, The suction device further includes a suction chamber with a sealing element, and the suction chamber is located above the battery packaging fixture and below the needle.

11. The battery vacuum sealing device according to claim 10, characterized in that, The air extraction chamber is provided with a left movable chamber or a right movable chamber, and the right movable chamber is provided with a sealing element.

12. The battery vacuum sealing device according to claim 11, characterized in that, The air extraction chamber is also equipped with a chamber driving device. The air extraction chamber consists of a left movable chamber and a right movable chamber. The left movable chamber and the right movable chamber are respectively connected to a chamber driving device. The chamber driving device is used to drive the left movable chamber and the right movable chamber to move towards each other and abut against each other.

13. The battery vacuum sealing device according to claim 7, characterized in that, The air extraction device also includes an air tube connected to the needle.

14. The battery vacuum sealing device according to claim 13, characterized in that, The air tube is connected to an external negative pressure device, which is used to provide negative pressure.

15. The battery vacuum sealing device according to claims 4, 7 and 9, characterized in that, The drive device, needle drive device, and chamber drive device are equipped with cylinders and / or electric cylinders.

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