Liquid injection port cleaning method and liquid injection port cleaning apparatus

Abstract

This application provides a method and equipment for cleaning battery filling ports. The method includes: cutting a wiping material sheet of predetermined size and shape from a wiping material roll; transferring the wiping material sheet to a wiping head; positioning the wiping head on the surface to be cleaned at the filling port, such that the wiping head contacts the surface with a predetermined pressure; driving the wiping head to rotate at any angle relative to the surface to be cleaned around its axial centerline to clean the surface; and retrieving the wiping material sheet, applying pressure to the sheet as it is removed from the wiping head to separate it from the head. The cleaning method and equipment provided in this application achieve a dual improvement in cleaning efficiency and effectiveness by allowing the wiping head to rotate the wiping material sheet at any angle during cleaning and by applying pressure to the surface during cleaning.

Description

Technical Field

[0001] This application relates to the field of batteries, specifically to a method and equipment for cleaning the liquid injection port. Background Technology

[0002] In the current battery manufacturing process, electrolyte injection is an essential step. During the electrolyte injection process, the electrolyte is injected into the battery through a sealed channel constructed between the injection nozzle and the battery's injection port. It is unavoidable that some electrolyte will remain on the contact surface between the injection nozzle and the battery's injection port. This residual electrolyte not only affects the quality of subsequent battery processing and appearance, but can also pose safety hazards in severe cases. Summary of the Invention

[0003] This application provides a method and apparatus for cleaning the injection port, which can solve the above-mentioned defects in the prior art.

[0004] In a first aspect, this application provides a method for cleaning an injection port, comprising the following steps: positioning a wiping head on the surface to be cleaned of the injection port, such that the wiping head contacts the surface to be cleaned with a predetermined pressure; driving the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head, so as to clean the surface to be cleaned.

[0005] In the technical solution of this application embodiment, the rotation of the wiping head relative to any angle of the surface to be cleaned increases the cleaning range and improves the cleaning effect. This design allows the wiping head to rotate the cleaning pad at any angle during the cleaning process, solving the problem in related technologies where the wiping head can only rotate at a small angle and has a small effective wiping range, thus achieving a dual improvement in cleaning efficiency and cleaning effect. Applying a predetermined pressure to the surface to be cleaned by the wiping head helps remove stubborn stains and also ensures the safety and reliability of the cleaning method.

[0006] In some embodiments, the predetermined pressure is monitored, and when the predetermined pressure exceeds a predetermined pressure range: the rotation of the wiping head is stopped; or the position of the wiping head relative to the surface to be cleaned is adjusted so that the predetermined pressure is within the predetermined pressure range. Real-time monitoring and adjustment of the pressure applied by the wiping head to the surface to be cleaned can further improve the cleaning effect and ensure wiping safety, avoiding damage to the battery caused by wiping.

[0007] In some embodiments, the predetermined pressure range is from 1N to 10N. A well-designed predetermined pressure range ensures the continuous, efficient, and reliable operation of the cleaning method.

[0008] In some embodiments, the method further includes applying a predetermined negative pressure to the wiping head while it rotates at any angle relative to the surface to be cleaned around its axial centerline. Applying negative pressure to the wiping head can better adsorb and transfer contaminants remaining around the injection port, further expanding the wiping range and improving the cleaning effect. Moreover, applying a predetermined negative pressure to the wiping head allows it to effectively adsorb the wiping material attached to it during rotational wiping, preventing the wiping material from falling off and affecting machine operation, ensuring equipment reliability, and solving the problem of easy damage and detachment of wiping material in related technologies.

[0009] In some embodiments, the method further includes monitoring the predetermined negative pressure, and when the predetermined negative pressure exceeds a predetermined negative pressure range: stopping the rotation of the wiping head; or adjusting the predetermined negative pressure applied to the wiping head to bring the predetermined negative pressure within the predetermined negative pressure range; or replacing the wiping pad of the wiping head. Monitoring and adjusting the predetermined negative pressure can further ensure the wiping effect and the continuous reliability of the operation.

[0010] In some embodiments, the predetermined negative pressure is in the range of -60 kPa to -99 kPa; and / or the predetermined negative pressure range is determined based on any one or a combination of the target contaminant to be wiped (e.g., the state of the contaminant, such as liquid contaminant, solid contaminant, etc.) and the wiping material (e.g., the type, size, porosity, thickness, etc. of the wiping material). Predetermining the negative pressure range by rotating the wiping head ensures that this method is compatible with different wiping objects and target contaminants, improving the method's versatility.

[0011] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the method further includes monitoring whether the wiping pad has detached from the wiping head or whether the wiping head is equipped with the wiping pad during or before the wiping head is rotated at any angle relative to the surface to be cleaned, either while driving the wiping head to rotate about the axial center line of the wiping head relative to the surface to be cleaned. By monitoring whether the wiping head has a wiping pad or whether the wiping pad has detached from the wiping head, direct contact between the wiping head and the surface to be cleaned can be avoided when the wiping head is without a wiping pad, which could lead to damage to the wiping head and / or the battery, thereby improving operational safety and reliability.

[0012] In some embodiments, when it is detected that the wiping pad has detached from the wiping head or that the wiping head is not equipped with the wiping pad: the rotation of the wiping head is stopped; and / or a new wiping pad is installed on the wiping head. Monitoring the presence or absence of the wiping pad and stopping the rotation of the wiping head; and / or installing a new wiping pad on the wiping head improves operational smoothness and equipment utilization efficiency.

[0013] In some embodiments, whether the wiping pad detaches from the wiping head or whether the wiping head is equipped with the wiping pad is monitored by any one or a combination of any two or more of the following methods: monitoring a predetermined negative pressure applied to the wiping head; using a laser sensor; or using an ultrasonic sensor. These methods enable low-cost, real-time online monitoring, improving cleaning efficiency while ensuring operational safety.

[0014] In some embodiments, the method further includes the step of transferring a wiping pad onto the wiping head before positioning the wiping head on the surface to be cleaned at the injection port. Transferring the wiping pad onto the wiping head improves the effective utilization rate of the wiping pad and further ensures the cleaning effect.

[0015] In some embodiments, the wiping pad is cut from the wiping material roll to a predetermined size and shape before being transferred to the wiping head. This design solves the problem of cross-contamination of the pads in related technologies and allows for flexible cutting of wiping pads to appropriate shapes and sizes according to the shape and size of the injection port to be wiped.

[0016] In some embodiments, the wiping pad is destaticated before being transferred to the wiping head; and / or a predetermined negative pressure is applied to the wiping head during the transfer. Destaticating the wiping pad before transferring it to the wiping head makes the transfer process more stable, improving the overall safety and reliability of the cleaning method. Applying a predetermined negative pressure to the wiping head during the transfer ensures the wiping pad reliably adheres to the wiping head, thereby guaranteeing the subsequent cleaning effect.

[0017] In some embodiments, the wiping head rotates relative to the surface to be cleaned for 1-5 seconds, and / or the rotation angle ranges from 360° to 1080°. By setting the above-mentioned appropriate wiping parameters, the cleaning effect can be guaranteed while improving cleaning efficiency.

[0018] In some embodiments, the wiping head is provided with replaceable wiping pads, and the method further includes determining whether the wiping pad needs to be replaced based on any one or any two or more of the following parameters: the rotation angle of the wiping head or the wiping pad; the rotation time of the wiping head or the wiping pad; the number of injection ports wiped by the wiping pad; and the weight change of the wiping pad due to wiping contaminants. Monitoring and determining whether the wiping pad needs to be replaced can improve pad utilization, reduce costs, and prevent overuse of the pad from achieving a cleaning effect.

[0019] In some embodiments, the cleaning agent is further provided to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about its axial centerline relative to the surface to be cleaned at any angle. Providing cleaning agent to the surface to be cleaned or the wiping pad of the wiping head effectively removes stubborn stains such as residual compounds from the injection port, further improving the cleaning effect.

[0020] In some embodiments, the method further includes the steps of: monitoring the concentration of the cleaning agent in the air and issuing an alarm when the concentration exceeds a predetermined concentration; and / or adjusting the concentration of the cleaning agent in the air to be below the predetermined concentration; and / or stopping the supply of the cleaning agent and the operation of the wiping head.

[0021] Continuous monitoring and adjustment of the concentration of cleaning agents in the air can ensure a safe working environment, reduce environmental pollution, and also reduce safety hazards and the probability of accidents such as fires and explosions.

[0022] In some embodiments, the predetermined concentration is positively correlated with the lower explosive limit concentration of the cleaning agent.

[0023] Setting a predetermined concentration that is positively correlated with the lower explosive limit of the cleaning agent makes this method applicable to different types of cleaning agents.

[0024] In some embodiments, the wiping head is provided with replaceable wiping pads, and the method further includes recovering the wiping pads by applying pressure to the wiping pads when they are removed from the wiping head to drive them apart. By applying pressure to the wiping pads to remove them from the wiping head, the method ensures that the wiping pads to be recovered can be transferred and recovered in a timely manner, improving the reliability of the cleaning method and avoiding operational malfunctions that could affect cleaning efficiency.

[0025] In some embodiments, the method further includes monitoring the wear level of the wiping head and replacing the wiping head when the wear level exceeds a threshold. Monitoring the wear level of the wiping head and replacing worn heads in a timely manner ensures the quality, reliability, and safety of cleaning.

[0026] Secondly, this application provides a liquid inlet cleaning device, comprising: a wiping head, the wiping head being provided with a replaceable wiping pad; a wiping head driving mechanism, the wiping head being detachably connected to the wiping head driving mechanism; and a controller, the controller being communicatively connected and / or electrically connected to the wiping head driving mechanism to control the wiping head driving mechanism to drive the wiping head, such that the wiping head contacts the surface to be cleaned with a predetermined pressure and rotates the wiping head about its axial centerline relative to the surface to be cleaned at any angle, thereby cleaning the surface to be cleaned.

[0027] In some embodiments, the controller is configured to monitor the predetermined pressure, and when the predetermined pressure is detected to exceed a predetermined pressure range: stop the rotation of the wiping head; or control the wiping head drive mechanism to adjust the position of the wiping head relative to the surface to be cleaned so that the predetermined pressure is within the predetermined range.

[0028] In some embodiments, the predetermined pressure range is 1N to 10N.

[0029] In some embodiments, the inlet cleaning device further includes a pressure regulating mechanism that is communicatively or electrically connected to the controller, and the controller is configured to control the pressure regulating mechanism to apply a predetermined negative pressure to the wiping head during the process of driving the wiping head to rotate at any angle relative to the surface to be cleaned about the wiping head about the axial centerline of the wiping head.

[0030] In some embodiments, the controller is configured to: monitor the predetermined negative pressure, and when the predetermined negative pressure exceeds the predetermined negative pressure range: stop the rotation of the wiping head; or control the air pressure regulating structure to adjust the predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range; or replace the wiping pad of the wiping head.

[0031] In some embodiments, the predetermined negative pressure is in the range of -60 kPa to -99 kPa; and / or the predetermined negative pressure is determined based on any one or any combination of two or more of the target contaminant to be wiped (e.g., the state of the contaminant, such as liquid contaminant, solid contaminant, etc.) and the wiping material (e.g., the type, size, porosity, thickness, etc. of the wiping material).

[0032] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the controller is configured to: monitor whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with the wiping pad during or before the wiping head is rotated at any angle relative to the surface to be cleaned, either while driving the wiping head to rotate at any angle relative to the surface to be cleaned about the axial center line of the wiping head.

[0033] In some embodiments, the controller is configured to, when it detects that the wiping pad has fallen off the wiping head or that the wiping head is not fitted with the wiping pad: control the wiping head drive mechanism to stop driving the rotation of the wiping head; and / or install a new wiping pad onto the wiping head.

[0034] In some embodiments, the controller is configured to detect whether the wiping pad has detached from the wiping head or whether the wiping head is equipped with the wiping pad by any one or any two or more of the following methods: monitoring a predetermined negative pressure applied to the wiping head; using a laser sensor; or using an ultrasonic sensor.

[0035] In some embodiments, the inlet cleaning device further includes a wiping material transfer mechanism that is either communicatively or electrically connected to the controller, and the controller is configured to control the wiping material transfer mechanism to transfer the wiping material onto the wiping head before positioning the wiping head on the surface to be cleaned at the inlet.

[0036] In some embodiments, the inlet cleaning device further includes a wiping material roll cutting mechanism that is either communicatively or electrically connected to the controller, and the controller is configured to control the wiping material roll cutting mechanism to cut wiping material sheets of a predetermined size and shape from the wiping material roll before transferring the wiping material sheets to the wiping head.

[0037] In some embodiments, the inlet cleaning device further includes an antistatic device that is communicatively or electrically connected to the controller, and the controller is configured to: control the antistatic device to destaticate the wiping pad before transferring the wiping pad to the wiping head; and / or control the air pressure regulating mechanism to apply a predetermined negative pressure to the wiping head to transfer the wiping pad to the wiping head.

[0038] In some embodiments, the controller is configured such that the wiping head rotates relative to the surface to be cleaned for 1s-5s, and / or the rotation angle range is 360°-1080°.

[0039] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the controller is configured to determine whether the wiping pad needs to be replaced based on any one or any combination of two or more of the following parameters: the rotation angle of the wiping head or the wiping pad; the rotation time of the wiping head or the wiping pad; the number of injection ports wiped by the wiping pad; and the weight change of the wiping pad due to wiping contaminants.

[0040] In some embodiments, the inlet cleaning device further includes a cleaning agent supply device that is communicatively or electrically connected to the controller, and the controller is configured to: control the cleaning agent supply device to supply cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about the axial centerline of the wiping head relative to the surface to be cleaned at any angle.

[0041] In some embodiments, the inlet cleaning device further includes a flake recovery device that is communicatively or electrically connected to the controller, and the controller is configured to apply pressure to the flake when it is removed from the wiping head to drive the flake to separate from the wiping head and recover it into the flake recovery device.

[0042] In some embodiments, the controller is configured to monitor the wear level of the wiping head and replace the wiping head when the wear level exceeds a threshold.

[0043] In some embodiments, the inlet cleaning device further includes a cleaning agent supply device that is communicatively or electrically connected to the controller, and the controller is configured to:

[0044] The cleaning agent supply device is controlled to supply the cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about its axial centerline relative to the surface to be cleaned at any angle.

[0045] In some embodiments, the inlet cleaning device further includes a cleaning agent monitoring device that is communicatively or electrically connected to the controller, the controller being configured to control the cleaning agent monitoring device to monitor the concentration of the cleaning agent in the air and to issue an alarm when the concentration exceeds a predetermined concentration; and / or adjust the concentration of the cleaning agent in the air to be below the predetermined concentration; and / or stop the inlet cleaning device.

[0046] Continuous monitoring and adjustment of the concentration of cleaning agents in the air can ensure a safe working environment, reduce environmental pollution, and also reduce safety hazards and the probability of accidents such as fires and explosions.

[0047] It should be understood that the inlet cleaning device according to any of the above embodiments can achieve the same beneficial technical effects as the corresponding inlet cleaning method.

[0048] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0049] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0050] Figure 1 This is a flowchart of a method for cleaning the injection port according to some embodiments of this application;

[0051] Figure 2 This is a flowchart of a method for cleaning the injection port according to other embodiments of this application;

[0052] Figure 3 This is a flowchart of a method for cleaning the injection port according to some embodiments of this application;

[0053] Figure 4 This is a flowchart of a method for cleaning the injection port according to some embodiments of this application;

[0054] Figure 5 This is a flowchart of a method for cleaning the injection port according to some embodiments of this application;

[0055] Figure 6 This is a schematic diagram of the structure of the inlet cleaning device according to some embodiments of this application;

[0056] Figure 7 This is a schematic diagram of the structure of a liquid inlet cleaning device according to some embodiments of this application. Detailed Implementation

[0057] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0059] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0060] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0061] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0062] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0063] In the description of the embodiments of this application, the technical 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0064] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0065] Battery electrolyte is the carrier of ions in a battery. It plays a crucial role in conducting ions between the positive and negative electrodes, ensuring the battery achieves advantages such as high voltage and high specific energy. Liquid electrolyte is typically injected into the battery through an injection cup and inlet. However, during the injection process, electrolyte residue is unavoidable at the contact surface between the injection nozzle and the battery's injection port. Currently, some injection port cleaning devices can automate or semi-automate this process.

[0066] In related technologies, battery filling port cleaning equipment typically includes a frame, a feed reel, a return reel, a reel drive mechanism, a battery fixing device, and a wiping tape pulling mechanism. The feed reel and return reel are rotatably mounted on the frame, and a wiping tape is wound around the feed reel. The reel drive mechanism is connected to the return reel and is used to wind the wiping tape from the feed reel onto the return reel. The battery fixing device is used to fix the battery to be cleaned with the filling port facing upwards. The wiping tape pulling mechanism includes a tape pulling seat for pressing the wiping tape between the feed reel and return reel onto the battery. The tape pulling seat is vertically movable and positioned on the frame above the battery fixing device. The inventors of this application note that the related technology has the following technical defects:

[0067] 1. Limited effective wiping area. Due to the small contact area between the wiping head and the injection port, and the fact that the cleaning belt is a single, continuous pull-belt structure, it cannot achieve full-circumference cleaning.

[0068] Second, the cleaning cloth is prone to falling off, resulting in a high failure rate and long downtime for maintenance. In related technologies, the wiping head of the wiping mechanism needs to press down the cleanroom cloth belt as a whole during cleaning. During the wiping process, the wiping head makes a small back-and-forth rotation on the cleanroom cloth. In order to ensure that the cleanroom cloth does not break during the cleaning process, the cleanroom cloth cannot be kept taut, which causes the cleanroom cloth roll to easily fall off during movement.

[0069] Third, cleanroom wipes are prone to cross-contamination. In related technologies, the cleanroom wipe strip in the wiping structure is a single unit. Due to the absorbent properties of the cleanroom wipe itself, the electrolyte absorbed by the cleanroom wipe used to wipe the previous battery will spread onto the clean strip, causing the next battery to be contaminated when using this section of the cleanroom wipe.

[0070] Based on the above-mentioned technical problems, the inventors, through in-depth research, have provided a method and device for wiping injection ports. By cleaning the injection ports with pressure at any angle through rotary cleaning, the cleaning effect and efficiency of the injection ports are improved.

[0071] The batteries disclosed in this application can be power batteries or energy storage batteries. Applications of power batteries include, but are not limited to, vehicles, ships, aircraft, spacecraft, power tools, electric toys, and various mobile terminals. Applications of energy storage batteries include, but are not limited to, solar power systems, hydropower systems, and wind power systems.

[0072] The batteries disclosed in this application can be any type of battery that uses liquid electrolyte, including but not limited to: lithium-ion batteries, lithium metal batteries, lithium-sulfur batteries, lead-acid batteries, nickel-metal hydride batteries, or lithium-air batteries, etc.

[0073] Figure 1 This is a flowchart illustrating a method for cleaning the injection port according to some embodiments of this application. Please refer to... Figure 1 This application provides a method 100 for cleaning an injection port, which includes the following steps S101 to S102.

[0074] Step S101: Position the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure;

[0075] Step S102: Drive the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head to clean the surface.

[0076] In step S101, positioning the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure, can be understood as the wiping head being located above the surface to be cleaned, and applying pressure to the surface through contact.

[0077] The wiping head can be designed to mimic the size, shape, and material properties of the surface to be cleaned to improve cleaning effectiveness. The wiping head can also be quickly replaced as needed to enhance cleaning efficiency. Here, "mimicry design" refers to the shape of the wiping head and the inlet matching or complementing each other, or the shapes of the wiping head, wiping pad, and the inlet matching or complementing each other. Furthermore, since the surface to be wiped at the inlet may not be flat, it may include grooves, protrusions, etc. By incorporating complementary parts on the wiping head and / or wiping pad to the grooves or protrusions of the surface to be cleaned, contaminants on the surface can be removed more effectively.

[0078] In step S102, the wiping head can achieve arbitrary angle rotation cleaning by controlling parameters such as the degree of rotation, direction, number of rotations, speed, and time of the wiping head.

[0079] The ability of the wiping head to rotate at any angle relative to the surface to be cleaned increases its cleaning range and improves its cleaning effect. This design allows the wiping head to rotate the cleaning pad at any angle during the cleaning process, solving the problem of limited rotation angle and small effective wiping area in related technologies, thus achieving a dual improvement in cleaning efficiency and effect. Applying predetermined pressure during the rotation of the wiping head on the surface to be cleaned helps remove stubborn stains and ensures the safety and reliability of the cleaning method.

[0080] In some embodiments, a predetermined pressure is monitored, and when the predetermined pressure exceeds the predetermined pressure range: the rotation of the wiping head is stopped; or the position of the wiping head relative to the surface to be cleaned is adjusted so that the predetermined pressure is within the predetermined pressure range.

[0081] The predetermined pressure can be monitored using any pressure monitoring method, such as sensors or deformers connected to the controller via communication and / or electrical connection to the wiping head, or sensors or deformers connected to the controller via communication and / or electrical connection to the surface to be cleaned. The predetermined pressure can be adjusted by controlling the vertical movement distance of the wiping head relative to the surface to be cleaned. The predetermined pressure range refers to the pressure range that helps the wiping head clean effectively while ensuring that the battery does not deform when the wiping head contacts the battery.

[0082] Real-time monitoring and adjustment of the predetermined pressure of the pressing sheet can further improve the cleaning effect and ensure wiping safety, avoiding damage to the battery during wiping.

[0083] In some embodiments, the predetermined pressure range is 1N to 10N.

[0084] The injection port cleaning method provided in this embodiment ensures that the cleaning method is continuous, efficient, and reliable by reasonably designing a predetermined pressure range.

[0085] In some embodiments, in step S102, a predetermined negative pressure is applied to the wiping head.

[0086] Applying a predetermined negative pressure to the wiping head means that negative pressure can be applied to the surface to be cleaned through the wiping head, so that the contaminants on the surface to be cleaned are transferred and adsorbed onto the wiping material attached to the surface of the wiping head or into the contaminant container inside the wiping head. Alternatively, negative pressure can be applied to the wiping material through the wiping head to ensure that the wiping material is always adsorbed onto the wiping head during the wiping process, thus ensuring the safety of the wiping process.

[0087] Applying negative pressure to the wiping head can better adsorb and transfer contaminants remaining around the injection port, further expanding the wiping area and improving the cleaning effect. Moreover, applying a predetermined negative pressure to the wiping head allows it to effectively adsorb the cleaning flakes during the rotating wiping process, preventing the flakes from falling off and affecting machine operation, thus ensuring equipment reliability and solving the problem of easy damage and detachment of cleaning flakes in related technologies.

[0088] In some embodiments, a predetermined negative pressure is monitored, and when the predetermined negative pressure exceeds the predetermined negative pressure range: the rotation of the wiping head is stopped; or the predetermined negative pressure applied to the wiping head is adjusted so that the predetermined negative pressure is within the predetermined negative pressure range; or the wiping material of the wiping head is replaced.

[0089] Wiping pads are materials that can directly contact the surface to be cleaned, effectively transferring contaminants from the electrolyte inlet without damaging the battery. Wiping pads can be made of ordinary cloth, lint-free paper, or lint-free cloth, with lint-free cloth being the preferred material.

[0090] Excessive adsorption of contaminants by the wiping pad can also cause blockage of the wiping head's air outlet, leading to sudden changes in the predetermined negative pressure. Therefore, the changes in the predetermined negative pressure can be combined with changes in parameters such as pad quality and humidity to jointly determine whether the wiping pad of the wiping head needs to be replaced.

[0091] The cleaning method for the injection port provided in this embodiment can further ensure the wiping effect and the continuous reliability of the operation by monitoring and adjusting the predetermined negative pressure.

[0092] In some embodiments, the predetermined negative pressure is in the range of -60 kPa to -99 kPa; and / or the predetermined negative pressure range is determined based on any one or any combination of two or more of the target contaminant to be wiped (e.g., the state of the contaminant, such as liquid contaminant, solid contaminant, etc.) and the wiping material (e.g., the type, size, porosity, thickness, etc. of the wiping material).

[0093] The predetermined negative pressure range refers to the negative pressure range selected based on parameters such as the size, weight, and hardness of the object being cleaned, the wiping material, and the target contaminants, which ensures reasonable adsorption without damaging the object being cleaned.

[0094] By appropriately selecting the predetermined negative pressure range of the wiping head, this method can be ensured to be compatible with different wiping objects and target contaminants, thus improving the method's versatility.

[0095] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the method further includes monitoring whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with a wiping pad during or before driving the wiping head to rotate at any angle relative to the surface to be cleaned about the axial center line of the wiping head.

[0096] Monitoring of the material can be carried out using any monitoring method, including but not limited to optical monitoring, pressure monitoring, and air pressure monitoring.

[0097] By monitoring whether there is a wiping pad on the wiping head or whether the wiping pad has fallen off the wiping head, direct contact between the wiping head and the surface to be cleaned can be avoided when there is no wiping pad, which could lead to damage to the wiping head and / or the battery, thereby improving operational safety and reliability.

[0098] In some embodiments, when it is detected that the wiping pad has fallen off the wiping head or that no wiping pad is installed on the wiping head: stop the rotation of the wiping head; and / or install a new wiping pad onto the wiping head.

[0099] The liquid inlet cleaning method provided in this embodiment improves operational smoothness and equipment efficiency by monitoring the presence or absence of the cleaning pad and stopping the rotation of the wiping head; and / or by installing a new cleaning pad onto the wiping head.

[0100] In some embodiments, whether the wiping pad detaches from the wiping head or whether the wiping head is equipped with a wiping pad is monitored by any one or any two or more of the following methods: monitoring a predetermined negative pressure applied to the wiping head; using a laser sensor; using an ultrasonic sensor.

[0101] Monitoring the predetermined negative pressure applied to the wiping head refers to determining whether the wiping pad has detached from the wiping head or whether the wiping pad has been installed by monitoring the magnitude of the predetermined negative pressure and whether there are any sudden changes. A laser sensor is a sensor that uses laser technology for measurement; it consists of a laser, a laser detector, and a measurement circuit. Laser detection can monitor the presence of the wiping pad in real time. An ultrasonic sensor converts ultrasonic signals into other energy signals (usually electrical signals). The ultrasonic probe of the sensor senses the presence of the wiping pad in real time. Preferably, a laser sensor is used to monitor the presence of the wiping pad. Successful wiping pad transfer can be determined by using a barometer to detect the magnitude and changes in pressure during wiping pad transfer.

[0102] The injection port cleaning method provided in this embodiment can achieve low-cost online real-time monitoring, improving cleaning efficiency while ensuring operational safety.

[0103] Figure 2 This is a flowchart illustrating a method for cleaning the injection port according to other embodiments of this application. Please refer to... Figure 2 This application embodiment also provides a method 200 for cleaning the injection port, which includes the following steps S201 to S203.

[0104] Step S201: Transfer the wiping material to the wiping head;

[0105] Step S202: Position the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure;

[0106] Step S203: Drive the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head to clean the surface.

[0107] Steps S202 to S203 are implemented in the same way as steps S101 to S102 in the above embodiment, and can be referred to the above embodiment for details. This embodiment and Figure 1 The difference in the illustrated embodiment is that, in this embodiment, step S201 is added before step S202.

[0108] Wiping pads are materials that can directly contact the surface to be cleaned, effectively transferring contaminants from the electrolyte inlet without damaging the battery. Wiping pads can be made of ordinary cloth, lint-free paper, or lint-free cloth, with lint-free cloth being the preferred material.

[0109] The wiping pad can be a single, independent pad, which is different from a rolled pad and can be directly transferred to the wiping head as a whole. The size of the single, independent pad can be adjusted according to the wiping head. Preferably, the size of the single, independent pad is 10mm-40mm in length, 10mm-30mm in width, and 0.5mm-1mm in thickness. More preferably, the size of the single, independent pad is 30mm in length, 20mm in width, and 0.3mm in thickness.

[0110] A single sheet can be a sheet pre-processed to a set size, or it can be a sheet obtained by unwinding a material roll after wiping it and then cutting it in situ by a cutting mechanism.

[0111] In step S201, transferring the wiping material to the wiping head can be understood as including: moving the wiping material below the wiping head or moving the wiping head above the material; and transferring the material below the wiping head to the wiping head so that the two come into direct contact.

[0112] The process of moving the wiping pad under the wiping head can be coordinated with pad fixing to achieve stable transfer of the wiping pad. For example, the wiping pad can be fixed to the wiping pad transfer mechanism by negative pressure. After the wiping pad reaches the designated position, the relative fixation between the wiping pad and the wiping pad transfer mechanism is released. Preferably, the negative pressure range is -60 kPa to -99 kPa.

[0113] Transferring the wiping pads to the wiping head improves the effective utilization rate of the wiping pads and further ensures the cleaning effect.

[0114] Figure 3 This is a flowchart illustrating a method for cleaning the injection port according to other embodiments of this application. Please refer to... Figure 3 This application embodiment also provides a method 300 for cleaning the injection port, which includes the following steps S301 to S304.

[0115] Step S301: Cut wipe sheet of predetermined size and shape from the wipe material roll;

[0116] Step S302: Transfer the wiping material to the wiping head;

[0117] Step S303: Position the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure;

[0118] Step S304: Drive the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head to clean the surface.

[0119] Depending on the size and shape of the surface to be cleaned, a cutting mechanism, such as a cutter or a cutting die, can cut wipes of a predetermined size and shape from a roll of wiping material. The cutting mechanism can be controlled by a controller to cut in conjunction with the roll of wiping material, or the size and shape of the wipes can be adjusted by changing the cutting die.

[0120] This design solves the problem of cross-contamination of materials in related technologies.

[0121] In some embodiments, the wiping pad is destaticated before being transferred to the wiping head; and / or a predetermined negative pressure is applied to the wiping head when transferring the wiping pad to the wiping head.

[0122] Static electricity is inevitably generated during the preparation and transfer of cleaning sheets. This static electricity affects the adhesion of the sheets to the wiping head and the subsequent cleaning quality. Removing static electricity from the sheets can be understood as removing it after the sheets are transferred to the wiping head and before they reach the head, or vice versa. Preferably, it is done after the sheets are transferred to the head and before they reach the head. Therefore, the static electricity removal device can be placed at the wiping head, in the cleaning box, or after the cleaning sheet cutting mechanism. The static electricity removal device can be an anti-static bar, a deionizer, a humidifier, etc.

[0123] When transferring the wiping material to the wiping head, applying a predetermined negative pressure to the wiping head can be understood as applying negative pressure to the wiping material to adsorb the material, thereby transferring the wiping material to the wiping head. The preferred negative pressure range for the wiping head is -60 kPa to -99 kPa.

[0124] Before transferring the wiping pad to the wiping head, removing static electricity from the wiping material makes the transfer process more stable, improving the overall safety and reliability of the cleaning method. Furthermore, applying a predetermined negative pressure to the wiping head during the transfer reduces damage to the wiping pad during the transfer process, thus ensuring subsequent cleaning effectiveness.

[0125] In some embodiments, the wiping head rotates relative to the surface to be cleaned for 1-5 seconds, and / or the rotation angle ranges from 360° to 1080°.

[0126] By setting the appropriate wiping parameters, the cleaning effect can be guaranteed while improving cleaning efficiency.

[0127] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the method further includes determining whether the wiping pad needs to be replaced based on any one or any combination of two or more of the following parameters: the rotation angle of the wiping head or the wiping pad; the rotation time of the wiping head or the wiping pad; the number of injection ports wiped by the wiping pad; and the weight change of the wiping pad due to wiping contaminants.

[0128] Overused wiping pads will not effectively clean the surface to be cleaned and may even cause cross-contamination. Determining whether to replace the wiping pad can be done by monitoring parameters such as the pad's weight, humidity, and surface cleanliness, or by monitoring the total rotation angle, number of rotations, and the number of infusion ports wiped.

[0129] By monitoring and determining whether the wiping pads need to be replaced, the utilization rate of the pads can be improved, costs can be reduced, and the overuse of pads can be avoided to prevent them from failing to achieve the cleaning effect.

[0130] In some embodiments, the method further includes providing cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about the axial centerline of the wiping head relative to the surface to be cleaned at any angle.

[0131] Applying cleaning agent to the surface to be cleaned or the wiping pad of the wiping head can be performed after step S303 and before step S304, or it can be performed during step S304. Preferably, applying cleaning agent to the surface to be cleaned or the wiping pad of the wiping head is performed after step S303 and before step S304.

[0132] The cleaning agent can be any organic reagent, and the type can be selected according to the characteristics of the contaminant. When the contaminant is an electrolyte, the cleaning agent can include, for example, DEC (diethyl carbonate) or DMC (dimethyl carbonate). When the contaminant is dust (such as dust generated during welding), the cleaning agent can be, for example, anhydrous ethanol.

[0133] Detergent can be applied to the surface to be cleaned or the wiping pad of the wiping head in various ways, such as dripping it onto the surface or spraying it onto the wiping pad. During the detergent application process, it is necessary to control the quality, volume, speed, and time of detergent supply. In one embodiment, detergent is dripped onto the surface to be cleaned, with a drop volume of 1ml-3ml, a drop mass of 1g-5g, a drop speed of 1g / s-5g / s, and a time range of 0.1s-0.5s. Excessive drop volume or mass will reduce cleaning efficiency and increase cleaning costs, while insufficient drop volume or mass will affect the cleaning effect. Excessive drop speed can easily lead to reagent spillage, while insufficient drop speed can easily lead to reagent evaporation. Controlling the drop mass, volume or speed, and time optimizes the dripping and cleaning effects.

[0134] By applying cleaning agent to the surface to be cleaned or to the wiping pads of the wiping head, stubborn stains such as residual compounds at the injection port can be effectively removed, further improving the cleaning effect.

[0135] In some embodiments, the method further includes the following steps: monitoring the concentration of the cleaning agent in the air and issuing an alarm when the concentration exceeds a predetermined concentration; and / or adjusting the concentration of the cleaning agent in the air to be below the predetermined concentration; and / or stopping the supply of the cleaning agent and the operation of the wiping head. DEC (diethyl carbonate), DMC (dimethyl carbonate), anhydrous ethanol, etc., are all organic solvents, characterized by volatility and flammability. Sensors or other methods are used to monitor the concentration of organic solvents in the air. When the detected concentration exceeds a first predetermined concentration, an alarm is issued through sound and light, such as an audible alarm or flashing red light, to alert personnel, and / or the exhaust device is automatically activated to reduce the concentration of the cleaning agent in the air to within the predetermined concentration range. When the detected concentration exceeds a second predetermined concentration, the supply of the cleaning agent and the operation of the wiping head are stopped to prevent open flames and fires in the air.

[0136] Continuous monitoring and adjustment of the concentration of cleaning agents in the air can ensure a safe working environment, reduce environmental pollution, and also reduce safety hazards, lowering the probability of accidents such as fires and explosions. In some embodiments, the predetermined concentration is positively correlated with the lower explosive limit concentration of the cleaning agent.

[0137] The lower explosive limit is the lowest concentration of a combustible gas, vapor of a combustible liquid, or dust that can explode when exposed to an open flame in air.

[0138] Setting a predetermined concentration that is positively correlated with the lower explosive limit of the cleaning agent makes this method applicable to different types of cleaning agents.

[0139] In some embodiments, the predetermined concentration is in the range of 5% to 35% of the lower explosive limit concentration of the cleaning agent.

[0140] The first predetermined concentration is set at 5%-15% of the lower explosive limit concentration, and the second predetermined concentration is set at 15%-35% of the lower explosive limit concentration.

[0141] The security level of this method can be further improved by setting different levels of alerts.

[0142] Figure 4 This is a flowchart illustrating a method for cleaning the injection port according to other embodiments of this application. Please refer to... Figure 4 This application embodiment also provides a method 400 for cleaning the injection port, which includes the following steps S401 to S405.

[0143] Step S401: Cut wipe sheet of predetermined size and shape from the wipe material roll;

[0144] Step S402: Transfer the wiping material to the wiping head;

[0145] Step S403: Position the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure;

[0146] Step S404: Drive the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head to clean the surface to be cleaned.

[0147] Step S405: Recover the wiping pad. When the wiping pad is removed from the wiping head, pressure is applied to the wiping pad to drive it to separate from the wiping head.

[0148] The wiping material can be recovered by moving the wiping head above the material recovery device and then releasing the fixation between the wiping head and the material, or by moving the material recovery device below the wiping head and then releasing the fixation between the wiping head and the material.

[0149] Applying pressure to the wiping pad to drive its separation from the wiping head can be understood as applying positive pressure to the pad via the wiping head. The magnitude of this positive pressure can be controlled and adjusted, with a preferred range of 0.1 MPa to 0.6 MPa. Applying pressure to the wiping pad to drive its separation from the wiping head can also be understood as applying negative pressure to the pad via an external mechanism, such as a pad recovery device. The magnitude of this negative pressure is adjustable, with a preferred range of -60 kPa to -99 kPa. Preferably, both methods can be used simultaneously, i.e., applying positive pressure to the pad via the wiping head while simultaneously applying negative pressure to the pad via an external mechanism, such as a pad recovery device.

[0150] In other embodiments, after step S405, it can be detected whether there is a material sheet on the wiping head to ensure that the material sheet has been successfully removed from the wiping head and to avoid affecting the cycle operation.

[0151] By applying pressure to the wiping pad to remove it from the wiping head, the used pad can be reliably separated from the wiping head, improving the reliability of the cleaning method and avoiding operational malfunctions that could affect cleaning efficiency.

[0152] In other embodiments, the method also includes monitoring the wear of the wiping head and replacing the wiping head when the wear exceeds a threshold.

[0153] The wear level of the wiping head can be monitored using any monitoring device, including but not limited to infrared imagers, roughness sensors that are connected to and / or electrically connected to the controller. An excessively worn wiping head will not achieve a cleaning effect and may even damage the surface to be cleaned at the injection port.

[0154] The injection port cleaning method provided in this embodiment ensures the quality, reliability, and safety of cleaning by monitoring the wear of the wiping head and replacing the worn head in a timely manner.

[0155] According to some embodiments of this application, see Figure 5 This application provides a method for cleaning an injection port, the method 500 including the following steps S501 to S514:

[0156] Step S501: Set the number of wipeable batteries in a single wiping pad. For example, the number of wipeable batteries in a single wiping pad can be set to 1-5, such as 3.

[0157] Step S502: Unwind the wiping material roll to a certain length, for example, 40mm;

[0158] Step S503: The cutting mechanism cuts the wiping material to a certain length to form wiping sheets of the required shape and size. For example, the cut sheet can be a square sheet with a length of 10mm-40mm, a width of 10mm-30mm, and a thickness of 0.5mm-1mm. Optionally, the cut sheet can be 30mm long, 20mm wide, and 0.3mm thick. Optionally, step S503 may also include performing an antistatic operation on the section of wiping material to be cut before cutting, for example, by using a high-frequency pulsed ion neutralizer.

[0159] Step S504: The wiping sheet is transferred to below the wiping head via the wiping sheet transfer mechanism. For example, a negative pressure device can be added at the location of the wiping sheet on the wiping sheet transfer mechanism to maintain the relative position of the wiping sheet and the transfer mechanism through negative pressure. In one embodiment, the negative pressure range can be from -60 kPa to -99 kPa, for example, the negative pressure can be -60 kPa. After the wiping sheet reaches the designated position, the negative pressure state between the wiping sheet and the transfer mechanism is released;

[0160] Step S505: The wiping head activates negative pressure to transfer the wiping material sheet onto the wiping head. In one embodiment, the wiping head can activate negative pressure 0-5 seconds before the material sheet transfer (e.g., starting negative pressure 1 second before transfer), with a negative pressure range of -60 kPa to -99 kPa, for example, -60 kPa. Optionally, after transferring the material sheet onto the wiping head using negative pressure, a laser sensor, ultrasonic sensor, or barometer can be used to detect whether the material sheet has been successfully transferred to the wiping head. For example, the pressure change detected by the barometer of the wiping head during the material sheet transfer can be used to determine whether the material sheet transfer was successful. Another example is that the negative pressure fluctuation range at this time can be determined to be equal to the pressure fluctuation range of Fuyao before the material sheet transfer; if they are not equal, the material sheet transfer can be considered successful.

[0161] Step S506: When the battery to be cleaned reaches the cleaning position, i.e., when the surface to be cleaned is directly below the cleaning head, apply (e.g., drop) a cleaning agent to the surface to be cleaned. The cleaning agent is any organic reagent, and the type can be selected according to the characteristics of the contaminant. When the contaminant is electrolyte, the cleaning agent can include, for example, DEC (diethyl carbonate) or DMC (dimethyl carbonate). When the contaminant is dust (e.g., dust generated during welding), the cleaning agent can be, for example, anhydrous ethanol. In step S506, optionally, the amount of cleaning agent applied to the battery by a target volume or target weight can be controlled, or the time of application of the cleaning agent can be controlled. The target volume range can be 1 ml to 3 ml. If a target weight of cleaning agent is selected, the weight range can be 1 g to 5 g. If you choose to control the time of applying the cleaning agent, the speed of applying the cleaning agent can be 1g / s-5g / s, and the time range can be 0.1s-0.5s, for example 0.3s; optionally, this step 507 can be performed after the battery reaches the wiping position and before the wiping head starts to rotate and / or during the rotation of the wiping head.

[0162] Step S507: The wiping head descends and forms pressure contact with the battery. The pressure on the contact surface is controlled by controlling the movement distance of the wiping head. The pressure range is 1N-10N, for example, the pressure can be 5N. The applied pressure ensures that the surface to be cleaned does not deform when the wiping head contacts the surface to be cleaned. The pressure on the surface to be cleaned is monitored online by a pressure monitor. When the pressure exceeds the pressure range, the pressure monitor returns the real-time pressure value to the controller, calculates the difference between the real-time pressure value and the pressure range, and uses it as an excitation signal to drive the wiping head lifting mechanism to compensate for and correct the difference.

[0163] Step S508: The wiping head rotates and wipes the surface to be cleaned. For example, the wiping time can be 1s-5s, such as 3s, and the angle range can be 360°-1080°;

[0164] Step S509: Wiping complete, that is, after the wiping time, the number of rotations of the wiping head, or the rotation angle of the wiping head reaches the set value, the wiping head rises to release the contact state between the wiping head and the surface to be cleaned, and the wiping head moves for 0.1-2 seconds to return to the initial position, for example, the wiping head moves for 1 second to return to the initial position;

[0165] Step S510: Determine whether the number of batteries wiped by the wiping sheet is equal to the set number of batteries to wipe. If the number of batteries wiped is equal to the set number of batteries to wipe (e.g., 3), proceed to step S512; if the number of batteries wiped is less than the set number of batteries to wipe (e.g., 3), return to step S507.

[0166] Step S511: After the wiping head reaches the initial position for removing the material sheet, the material sheet recycling device moves to below the wiping head;

[0167] Step S512: Release the negative pressure on the wiping head and remove the wiping sheet from the wiping head. Optionally, positive pressure can be applied to blow the wiping sheet, and / or negative pressure can be applied via an external wiping sheet recycling device to more reliably transfer the wiping sheet from the wiping head to the waste box of the wiping sheet recycling device. The positive pressure range is 0.1 MPa to 0.6 MPa (e.g., 0.5 MPa), and the positive pressure is adjustable; the negative pressure range is -60 kPa to -99 kPa (e.g., -60 kPa), and the negative pressure is adjustable. Optionally, the presence or absence of a wiping sheet on the wiping head can be detected to ensure that the wiping sheet has been successfully removed from the wiping head.

[0168] Step S513: The wiping material is recovered, and the material recovery device returns to its initial position.

[0169] It should be understood that after removing the used wiping pad from the wiping head, the process can return to step S502 to replace it with a new wiping pad for subsequent wiping operations.

[0170] It should be understood that at least some of the steps S501 to S513 above can be performed in a different order or some steps can be omitted, as long as the main operation cycle of wiping the electrolyte inlet and replacing the wiping pad can be completed. For example, after step S501 is performed once, it does not need to be repeated as long as the parameters of the wiping process (such as the material, shape, and size of the wiping pad, the shape and size of the electrolyte inlet of the battery to be wiped, and the shape and size of the wiping head) do not change. For example, steps S502 and S503 can be performed by directly providing pre-cut wiping pads placed in the battery box.

[0171] Figure 6 This is a schematic diagram of the structure of the inlet cleaning device in some embodiments of this application. (Refer to...) Figure 6This application provides a liquid inlet cleaning device 600, including a wiping head 601 with replaceable wiping pads; a wiping head drive mechanism 602 to which the wiping head 601 is detachably connected; and a controller (not shown), which is communicatively and / or electrically connected to the wiping head drive mechanism 602 to control the wiping head drive mechanism 602 to drive the wiping head, causing the wiping head to contact the surface to be cleaned with a predetermined pressure and to rotate the wiping head around its axial centerline relative to the surface to be cleaned at any angle, thereby cleaning the surface. The wiping head drive mechanism 602 can be any drive mechanism, such as a motor or cylinder. The wiping head drive mechanism 602 provides power to the device and, under the control of the controller, drives the wiping head to perform mechanical movements such as rotation and lifting. The controller is communicatively connected and / or electrically connected to the wiping head drive mechanism and various monitoring devices. The monitoring devices feed back monitoring information to the controller, and the controller controls the wiping head drive mechanism to drive the wiping head to move according to the monitoring information, so as to achieve the purpose of real-time monitoring and adjustment.

[0172] A material preparation mechanism 605 is provided on one side of the wiping head to prepare wiping materials for use by the wiping head; a material recycling device 609 is provided on the other side of the wiping head to collect used wiping materials. The liquid inlet cleaning device 600 also includes a battery conveying mechanism 603 and a liquid inlet positioning mechanism (not shown in the figure) that are communicatively and / or electrically connected to the controller. The battery conveying mechanism 603 is used to convey the battery 501, conveying the liquid inlet to be cleaned under the wiping head before the wiping head starts working, and conveying the cleaned liquid inlet away from the wiping head after the wiping head starts working. The battery conveying mechanism can be programmed to work in conjunction with the working time of the wiping head to achieve linkage and improve the operating efficiency of the equipment. Commonly used conveying mechanisms can be used as battery conveying mechanisms, such as conveyor belts and conveyor rollers. The liquid inlet positioning mechanism positions the surface to be cleaned under the wiping head, and the positioning mechanism can be an infrared sensor, laser detector, or other positioning device.

[0173] Figure 7 for Figure 6 Another construction method for the injection port cleaning device shown. For example... Figure 7 As shown, the wiping head drive mechanism in the inlet cleaning device, which is communicatively and / or electrically connected to the controller, includes a wiping head rotation mechanism 701 for driving the wiping head to rotate and a wiping head lifting mechanism 702 for driving the wiping head to move up and down. The wiping head 601 is detachably connected to the wiping head rotation mechanism 701. Under the control of the controller, the wiping head rotation mechanism 701 can drive the wiping head to rotate, causing the wiping head to contact the surface to be cleaned with a predetermined pressure and to rotate the wiping head at any angle relative to the surface to be cleaned around its axial centerline to clean the surface. Under the control of the controller, the wiping head lifting mechanism 702 can adjust the predetermined pressure of the pressing pad of the wiping head by adjusting the vertical movement distance of the wiping head 601.

[0174] The inlet cleaning device also includes a pressure regulating mechanism 604, a material preparation mechanism 605, a wiping material transfer mechanism 606, and a material recycling device 609, which are connected to the controller via communication or electrical connection. The pressure regulating mechanism 604 refers to any device capable of adjusting the air pressure of the wiping head, such as an air pump, valve, or conduit. The pressure regulating mechanism can apply negative or positive pressure to the wiping head, and the air pressure value can be monitored and controlled.

[0175] The material preparation mechanism 605 provides a single, independent material sheet. Preferably, the material preparation mechanism may include a wiping material roll cutting mechanism (not shown in the figure) to prepare the single, independent material sheet in situ. The wiping material sheet transfer mechanism 606, under the control of the controller, can transfer the wiping material sheet 607 from the material preparation mechanism 605 to below the wiping head. Optionally, the wiping material sheet transfer mechanism 606 can be any conveying mechanism such as a conveyor belt, conveyor roller, or robotic arm. Preferably, a fixing mechanism can be provided at the position of the material sheet on the wiping material sheet transfer mechanism 606 to ensure the relative position of the material sheet and the transfer mechanism. The fixing mechanism can be any one or a combination of mechanical fixing devices such as a negative pressure device, a pressure fixing device, or a limiting device. The negative pressure range of the negative pressure device is preferably -60 kPa to -99 kPa. After the wiping material sheet is transferred to the designated position by the wiping material sheet transfer mechanism, the relative fixing state between the wiping material sheet and the wiping material sheet transfer mechanism is released, including the release of the negative pressure state, the pressing state, the limiting state, or other mechanical fixing states. Under the negative pressure of the air pressure regulating mechanism, the wiping head transfers the wiping material sheet onto the wiping head. Then, driven by the wiping head rotation mechanism 701 and the wiping head lifting mechanism 702, it rotates and wipes the surface to be cleaned. Preferably, the wiping material roll, the wiping material roll cutting mechanism, the wiping material sheet transfer mechanism, and the wiping head can be linked together under the control of the controller to improve the equipment operating efficiency.

[0176] The material sheet recycling device 609 further includes a material sheet recycling air pressure regulating device 610 and a material sheet recycling box 611. When the wiping head removes the wiping material sheet, the material sheet recycling air pressure regulating device 610 applies negative pressure to the wiping material sheet to be recycled on the wiping head. Preferably, the air pressure regulating mechanism 604 simultaneously applies positive pressure to the wiping material sheet to be recycled on the wiping head. By jointly providing pressure to the wiping material sheet, it is recycled into the material sheet recycling box in the material sheet recycling device.

[0177] In some embodiments, this application provides a liquid inlet cleaning device, comprising: a wiping head, the wiping head being provided with a replaceable wiping pad; a wiping head driving mechanism, the wiping head being detachably connected to the wiping head driving mechanism; and a controller, the controller being communicatively connected and / or electrically connected to the wiping head driving mechanism to control the wiping head driving mechanism to drive the wiping head, such that the wiping head contacts the surface to be cleaned with a predetermined pressure and rotates the wiping head about its axial centerline relative to the surface to be cleaned at any angle, thereby cleaning the surface to be cleaned.

[0178] The wiping head drive mechanism increases the cleaning range and improves the cleaning effect of the wiping head by contacting the surface to be cleaned with a predetermined pressure and rotating the wiping head at any angle relative to the surface to be cleaned around the axial center line of the wiping head.

[0179] In some embodiments, the controller is configured to monitor a predetermined pressure, and when the predetermined pressure is detected to exceed a predetermined pressure range: stop the rotation of the wiping head; or control the wiping head drive mechanism to adjust the position of the wiping head relative to the surface to be cleaned so that the predetermined pressure is within a predetermined range.

[0180] Real-time monitoring and adjustment of the predetermined pressure of the pressing sheet can further improve the cleaning effect and ensure wiping safety, avoiding damage to the battery during wiping.

[0181] In some embodiments, the predetermined pressure range is 1N to 10N.

[0182] The injection port cleaning equipment provided in this embodiment ensures the continuous, efficient, and reliable cleaning method by reasonably designing a predetermined pressure range.

[0183] In some embodiments, the inlet cleaning device further includes a pressure regulating mechanism that is communicatively or electrically connected to the controller, and the controller is configured to control the pressure regulating mechanism to apply a predetermined negative pressure to the wiping head during the process of driving the wiping head to rotate at any angle relative to the surface to be cleaned about the wiping head about the axial centerline of the wiping head.

[0184] Applying negative pressure to the wiping head via the air pressure regulating mechanism allows for better adsorption and transfer of contaminants remaining around the injection port, further expanding the wiping area and improving cleaning effectiveness. Furthermore, the wiping head drive mechanism enables the wiping head to effectively adsorb cleaning flakes during rotation, preventing flakes from falling off and affecting machine operation, thus ensuring equipment reliability and solving the problem of easily damaged or detached flakes in related technologies.

[0185] In some embodiments, the controller is configured to monitor a predetermined negative pressure, and when the predetermined negative pressure exceeds a predetermined negative pressure range: stop the rotation of the wiping head; or control the air pressure regulating structure to adjust the predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range; or replace the wiping pad of the wiping head.

[0186] The inlet cleaning device provided in this embodiment can further ensure the wiping effect and the continuous reliability of the operation by monitoring and adjusting the predetermined negative pressure.

[0187] In some embodiments, the predetermined negative pressure is in the range of -60 kPa to -99 kPa; and / or the predetermined negative pressure is determined based on any one or any combination of two or more of the target contaminant to be wiped (e.g., the state of the contaminant, such as liquid contaminant, solid contaminant, etc.) and the wiping material (e.g., the type, size, porosity, thickness, etc. of the wiping material).

[0188] By appropriately selecting the predetermined negative pressure range of the rotating wiping head, it can be ensured that the equipment is compatible with different wiping objects and target contaminants, thus improving the equipment's versatility.

[0189] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the controller is configured to monitor whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with a wiping pad during or before driving the wiping head to rotate at any angle relative to the surface to be cleaned about the axial center line of the wiping head.

[0190] By monitoring whether there is a wiping pad on the wiping head or whether the wiping pad has fallen off the wiping head, direct contact between the wiping head and the surface to be cleaned can be avoided when there is no wiping pad, which could lead to damage to the wiping head and / or the battery, thereby improving operational safety and reliability.

[0191] In some embodiments, the controller is configured to, when it detects that the wiping pad has fallen off the wiping head or that no wiping pad is installed on the wiping head: control the wiping head drive mechanism to stop driving the rotation of the wiping head; and / or install a new wiping pad onto the wiping head.

[0192] The liquid inlet cleaning device provided in this embodiment monitors the presence or absence of wiping pads and stops the rotation of the wiping head via a controller; and / or installs new wiping pads onto the wiping head to improve operational smoothness and equipment efficiency.

[0193] In some embodiments, the controller is configured to detect whether the wiping pad has detached from the wiping head or whether the wiping head is equipped with a wiping pad by any one or any two or more of the following methods: monitoring a predetermined negative pressure applied to the wiping head; using a laser sensor; or using an ultrasonic sensor.

[0194] The inlet cleaning equipment provided in this embodiment can achieve low-cost online real-time monitoring, improving cleaning efficiency while ensuring operational safety.

[0195] In some embodiments, the inlet cleaning device further includes a wiping material transfer mechanism that is communicatively or electrically connected to the controller, and the controller is configured to control the wiping material transfer mechanism to transfer the wiping material onto the wiping head before positioning the wiping head on the surface to be cleaned at the inlet.

[0196] The inlet cleaning device provided in this embodiment transfers the wiping material to the wiping head, improving the effective utilization rate of the wiping material and further ensuring the cleaning effect. This design solves the problem of cross-contamination of the wiping material in related technologies.

[0197] In some embodiments, a wiping material roll cutting mechanism is also included, which is either communicatively or electrically connected to the controller, and the controller is configured to control the wiping material roll cutting mechanism to cut wiping material sheets of a predetermined size and shape from the wiping material roll before transferring the wiping material sheets to the wiping head.

[0198] Cutting wiping pads into predetermined sizes and shapes from wiping material rolls improves the effective utilization of the wiping pads and further ensures cleaning results. This design solves the problem of cross-contamination of wiping pads in related technologies.

[0199] In some embodiments, the inlet cleaning device further includes an antistatic device that is communicatively or electrically connected to the controller, and the controller is configured to: control the antistatic device to remove static electricity from the wiping pad before transferring the wiping pad to the wiping head; and / or control the air pressure regulating mechanism to apply a predetermined negative pressure to the wiping head to transfer the wiping pad to the wiping head.

[0200] By eliminating static electricity from the wiping pad using an antistatic device, the transfer of the pad to the wiping head becomes more stable, improving the overall safety and reliability of the cleaning method. Furthermore, by applying a predetermined negative pressure to the wiping head when transferring the pad, the reliability of the pad transfer process is ensured, thereby guaranteeing the subsequent cleaning effect.

[0201] In some embodiments, the controller is configured such that the wiping head rotates relative to the surface to be cleaned for 1s-5s, and / or the rotation angle ranges from 360° to 1080°.

[0202] By setting the appropriate wiping parameters, the cleaning effect can be guaranteed while improving cleaning efficiency.

[0203] In some embodiments, the wiping head is provided with a replaceable wiping pad, and the controller is configured to determine whether the wiping pad needs to be replaced based on any one or any combination of two or more of the following parameters: the rotation angle of the wiping head or the wiping pad; the rotation time of the wiping head or the wiping pad; the number of injection ports wiped by the wiping pad; and the weight change of the wiping pad due to wiping contaminants.

[0204] By monitoring and determining whether the wiping pads need to be replaced, the utilization rate of the pads can be improved, costs can be reduced, and the overuse of pads can be avoided to prevent them from failing to achieve the cleaning effect.

[0205] In some embodiments, the inlet cleaning device further includes a cleaning agent supply device 608 that is communicatively or electrically connected to the controller, and the controller is configured to: control the cleaning agent supply device to supply cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about the axial centerline of the wiping head relative to the surface to be cleaned at any angle.

[0206] By supplying cleaning agent to the surface to be cleaned or the wiping pads of the wiping head through the cleaning agent supply device, stubborn stains such as residual compounds at the injection port can be effectively removed, further improving the cleaning effect.

[0207] In some embodiments, the inlet cleaning device further includes a cleaning agent monitoring device (not shown) that is communicatively or electrically connected to a controller, and the controller is configured to: control the cleaning agent monitoring device to monitor the concentration of the cleaning agent in the air and issue an alarm when the concentration exceeds a predetermined concentration; and / or adjust the concentration of the cleaning agent in the air to be below the predetermined concentration; and / or stop the inlet cleaning device. In some embodiments, the cleaning agent monitoring device may be a sensor integrated into the cleaning agent supply device.

[0208] Continuous monitoring and adjustment of the concentration of cleaning agents in the air can ensure a safe working environment, reduce environmental pollution, and also reduce safety hazards and the probability of accidents such as fires and explosions.

[0209] In some embodiments, the inlet cleaning device further includes a flake recovery device that is communicatively or electrically connected to the controller, and the controller is configured to apply pressure to the flake when it is removed from the wiping head to drive the flake to separate from the wiping head and recover it into the flake recovery device.

[0210] By using a material sheet recovery air pressure regulating device and a wiping head air pressure regulating mechanism to jointly provide pressure to the wiping material sheet, the wiping material sheet is removed from the wiping head. This ensures that the used material sheet is reliably separated from the wiping head, improves the reliability of the cleaning method, and avoids operational failures affecting cleaning efficiency.

[0211] In some embodiments, the controller is configured to monitor the wear of the wiping head and replace the wiping head when the wear exceeds a threshold.

[0212] The inlet cleaning device provided in this embodiment ensures the quality, reliability, and safety of cleaning by monitoring the wear of the wiping head and replacing the worn head in a timely manner.

[0213] It should be understood that the injection port cleaning device according to the above embodiments can achieve the same beneficial technical effects as the corresponding injection port cleaning method.

[0214] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A method for cleaning an injection port, characterized in that, Includes the following steps: Position the wiping head on the surface to be cleaned at the injection port, so that the wiping head contacts the surface to be cleaned with a predetermined pressure, wherein the wiping head is provided with a replaceable wiping pad; The wiping head is driven to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head in order to clean the surface to be cleaned; During the process of rotating the wiping head around its axial centerline relative to the surface to be cleaned at any angle, a predetermined negative pressure is applied to the wiping head. Monitor the predetermined negative pressure, and when the predetermined negative pressure exceeds the predetermined negative pressure range, Stop the rotation of the wiping head; or Adjust the predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range; or Replace the wiping pad on the wiping head; The method further includes monitoring whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with the wiping pad by monitoring the predetermined negative pressure during the process of driving the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head or before driving the wiping head to rotate at any angle relative to the surface to be cleaned. It also includes providing cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about the axial center line of the wiping head relative to the surface to be cleaned at any angle; Monitor the concentration of the cleaning agent in the air and when the concentration exceeds a predetermined concentration... Issue an alarm; And / or Adjust the concentration of the cleaning agent in the air to be lower than the predetermined concentration; and / or Stop the supply of the cleaning agent and the operation of the wiping head.

2. The method for cleaning the injection port according to claim 1, characterized in that, Monitor the predetermined pressure, and when the predetermined pressure exceeds the predetermined pressure range, Stop the rotation of the wiping head; or Adjust the position of the wiping head relative to the surface to be cleaned so that the predetermined pressure is within the predetermined pressure range.

3. The method for cleaning the injection port according to claim 1, characterized in that, The predetermined negative pressure is in the range of -60 kPa to -99 kPa.

4. The method for cleaning the injection port according to claim 3, characterized in that, The predetermined negative pressure range is determined based on any one or a combination of two or more of the target contaminant to be wiped and the wiping material.

5. The method for cleaning the injection port according to claim 1, characterized in that, The following methods can be used to monitor whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with the wiping pad: Using a laser sensor; Using ultrasonic sensors.

6. The method for cleaning the injection port according to any one of claims 1 to 5, characterized in that, It also includes the following steps: Before positioning the wiping head on the surface to be cleaned at the injection port, transfer the wiping pad onto the wiping head; and / or Before transferring the wiping sheet to the wiping head, the wiping sheet is cut from the wiping material roll to a predetermined size and shape.

7. The method for cleaning the injection port according to claim 6, characterized in that, The wiping pad is destaticated before being transferred to the wiping head; and / or When transferring the wiping pad to the wiping head, a predetermined negative pressure is applied to the wiping head.

8. The method for cleaning the injection port according to claim 1, wherein the wiping head is provided with replaceable wiping pads, characterized in that, The method further includes determining whether the wiping pad needs to be replaced based on any one or any combination of two or more of the following parameters: The rotation angle of the wiping head or the wiping pad; The rotation time of the wiping head or the wiping pad; The number of injection ports that have been wiped by the wiping material sheet; The weight change of the wiping pad due to wiping away contaminants.

9. The method for cleaning the injection port according to claim 1, characterized in that, The predetermined concentration is positively correlated with the lower explosive limit concentration of the cleaning agent.

10. The method for cleaning the injection port according to any one of claims 1 to 5, wherein the wiping head is provided with replaceable wiping pads, characterized in that, The method further includes recovering the wiping pad and applying pressure to the wiping pad when it is removed from the wiping head to drive the wiping pad to separate from the wiping head.

11. The method for cleaning the injection port according to any one of claims 1 to 5, characterized in that, The method also includes monitoring the wear level of the wiping head and replacing the wiping head when the wear level exceeds a threshold.

12. A device for cleaning an injection port, characterized in that, include: A wiping head, wherein the wiping head is provided with replaceable wiping pads; A wiping head drive mechanism, wherein the wiping head is detachably connected to the wiping head drive mechanism; and A controller, which is communicatively connected and / or electrically connected to the wiping head drive mechanism, controls the wiping head drive mechanism to drive the wiping head, such that the wiping head contacts the surface to be cleaned at the injection port with a predetermined pressure and rotates the wiping head at any angle relative to the surface to be cleaned about the axial center line of the wiping head to clean the surface to be cleaned. A communication or electrical connection is made to the air pressure regulating mechanism of the controller, which is configured to control the air pressure regulating mechanism to apply a predetermined negative pressure to the wiping head during the process of driving the wiping head to rotate at any angle relative to the surface to be cleaned about the axial center line of the wiping head; The controller is configured to monitor the predetermined negative pressure, and when the predetermined negative pressure exceeds a predetermined negative pressure range, Stop the rotation of the wiping head; or Adjust the predetermined negative pressure applied to the wiping head so that the predetermined negative pressure is within the predetermined negative pressure range; or Replace the wiping pad of the wiping head. The controller is further configured to monitor whether the wiping pad has fallen off the wiping head or whether the wiping head is equipped with the wiping pad by monitoring the predetermined negative pressure during the process of driving the wiping head to rotate at any angle relative to the surface to be cleaned around the axial center line of the wiping head or before driving the wiping head to rotate at any angle relative to the surface to be cleaned. It also includes a cleaning agent supply device and a cleaning agent monitoring device that are connected or electrically connected to the controller, and the controller is configured to: The cleaning agent supply device is controlled to provide the cleaning agent to the surface to be cleaned or the wiping pad of the wiping head before and / or during the rotation of the wiping head about its axial centerline relative to the surface to be cleaned at any angle; and The cleaning agent monitoring device monitors the concentration of the cleaning agent in the air and, when the concentration exceeds a predetermined concentration, [the device will take appropriate action]. Issue an alarm; and / or Adjust the concentration of the cleaning agent in the air to be lower than the predetermined concentration; and / or Stop the cleaning equipment for the injection port.

13. The inlet cleaning device according to claim 12, characterized in that, The controller is configured to monitor the predetermined pressure, and when the predetermined pressure is detected to exceed a predetermined pressure range, Stop the rotation of the wiping head; or The wiping head drive mechanism is controlled to adjust the position of the wiping head relative to the surface to be cleaned, so that the predetermined pressure is within the predetermined pressure range.

14. The inlet cleaning device according to claim 12 or 13, characterized in that, It also includes a wiping pad transfer mechanism that is either communicatively or electrically connected to the controller, and the controller is configured to: Before positioning the wiping material transfer mechanism on the surface to be cleaned at the injection port, the wiping material transfer mechanism transfers the wiping material onto the wiping head.

15. The inlet cleaning device according to claim 14, characterized in that, It also includes a wiping material roll cutting mechanism that is either communicatively or electrically connected to the controller, and the controller is configured to: The wiping material roll cutting mechanism is controlled to cut wiping material sheets of predetermined size and shape from the wiping material roll before transferring the wiping material sheets to the wiping head.

16. The cleaning device for the injection port according to claim 12, wherein the wiping head is provided with replaceable wiping pads, characterized in that, The controller is configured to determine whether the wiping pad needs to be replaced based on any one or any combination of two or more of the following parameters: The rotation angle of the wiping head or the wiping pad; The rotation time of the wiping head or the wiping pad; The number of injection ports that have been wiped by the wiping material sheet; The weight change of the wiping pad due to wiping away contaminants.

17. The inlet cleaning device according to claim 12 or 13, characterized in that, It also includes a flake recycling device that is either communication-connected or electrically connected to the controller, and the controller is configured to: When the wiping pad is removed from the wiping head, pressure is applied to the wiping pad to drive it to separate from the wiping head and be recycled into the pad recycling device.

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