Battery pack end cover dust removal method and system, intelligent terminal and storage medium

Abstract

The invention relates to a battery pack end cover dust removal method and system, an intelligent terminal and a storage medium, and relates to the technical field of dust removal, the method comprises the steps that in response to a conveying starting signal of a battery pack end cover, the battery pack end cover is controlled to enter a dust removal channel in the conveying direction, and the dust removal channel comprises a plurality of conveying belts which are evenly arranged at intervals; static electricity removing operation is conducted on the battery pack end cover through the first static electricity removing device; performing primary dust removal operation on the battery pack end cover by rotating the air knife; performing re-dedusting operation on the battery pack end cover through a single-side air knife, wherein the single-side air knife comprises an upper single-side air knife positioned on the upper side of the conveying channel and a lower single-side air knife positioned on the lower side of the dedusting channel; dust is collected through the dust collecting device; and after the dust removal operation, carrying out static electricity removal operation on the battery pack end cover through a second static electricity removal device. The dust removal effect on the battery pack end cover is improved.

Description

Technical Field

[0001] This application relates to the field of dust removal technology, and in particular to a method, system, smart terminal and storage medium for dust removal from battery pack end caps. Background Technology

[0002] As a crucial structural component of the battery pack in new energy vehicles, the battery pack end cap requires a high degree of surface cleanliness during production, assembly, and transportation. Residual dust, metal shavings, or other impurities on the end cap surface can not only affect its assembly quality and sealing performance with the battery pack body but may also lead to problems such as decreased insulation performance during subsequent use. Therefore, dust removal treatment is typically required before assembly.

[0003] In existing technologies, battery pack end caps are mostly cleaned using air knife blowing or suction structures. However, static electricity is easily generated during the conveying and airflow scouring process of the battery pack end caps. This static electricity enhances the adhesion of dust to the end cap surface, making it difficult to effectively remove some dust. Furthermore, existing dust removal methods rely on relatively simple static electricity control measures, often only installing an anti-static device before dust removal. This is insufficient to eliminate the static electricity regenerated during dust removal due to airflow friction, easily leading to dust re-absorption or secondary adhesion, thus affecting the stability of the dust removal effect.

[0004] Regarding the aforementioned technologies, the effect of static electricity on dust adhesion causes dust re-absorption during the dust removal process, resulting in unsatisfactory dust removal performance. Summary of the Invention

[0005] To improve the dust removal effect on battery pack end caps, this application provides a method, system, smart terminal, and storage medium for removing dust from battery pack end caps.

[0006] In a first aspect, this application provides a method for dust removal from the end cover of a battery pack, employing the following technical solution: A method for dust removal from battery pack end caps includes: In response to the conveying start signal of the battery pack end cover, the battery pack end cover is controlled to enter the dust removal channel along the conveying direction. The dust removal channel includes several conveyor belts arranged at even intervals. The battery pack end cap is destaticated by a first static eliminator, which includes a first upper static eliminator located on the upper side of the dust removal channel and a first lower static eliminator located on the lower side of the conveying channel. The battery pack end caps are initially dusted by a rotary air knife, which includes an upper rotary air knife located on the upper side of the conveying channel and a lower rotary air knife located on the lower side of the dust removal channel. The battery pack end cap is re-dust removed by a single-sided air knife, which includes an upper single-sided air knife located above the conveying channel and a lower single-sided air knife located below the dust removal channel. Dust is collected by a dust collection device that covers the locations of the rotary air knife and the single-sided air knife. After the dust removal operation, the battery pack end cap is destaticated by a second destatic device, which includes a second upper destatic bar located on the upper side of the dust removal channel and a second lower destatic bar located on the lower side of the conveying channel.

[0007] By adopting the above technical solution, after the battery pack end cap enters the dust removal channel, a synergistic treatment method combining double-sided static elimination, rotary air knife initial dust removal, and single-sided air knife re-dust removal is used to control the static state of the end cap surface in stages before, during, and after dust removal. This effectively weakens the enhancing effect of static electricity on dust adhesion and reduces the risk of secondary static electricity and dust re-absorption during airflow purging. At the same time, the combined purging of rotary air knife and single-sided air knife ensures that dust on the end cap surface and bottom blind area is fully stripped and collected, thereby improving the dust removal effect of the battery pack end cap and meeting the requirements for the cleanliness of the battery pack end cap surface before assembly.

[0008] Optionally, after the battery pack end cap enters the dust removal channel, the support status information of the battery pack end cap during the conveying process can be obtained; The contact area between the battery pack end cap and the conveyor belt is obtained based on the support status information; Based on the contact area, identify the bottom dust removal blind spots that the battery pack end cap cannot be covered by the airflow of the rotary air knife and the single-sided air knife; The conveyor belt is adjusted according to the preset lifting method to create a purging gap between the bottom dust removal blind zone and the conveyor belt, allowing airflow to enter.

[0009] By adopting the above technical solution, by obtaining the support status of the battery pack end cap during the conveying process and dynamically identifying the contact area formed with the conveyor belt, it is possible to accurately locate the bottom dust removal blind area that is difficult to cover by the rotating air knife and the single-sided air knife. By lifting and adjusting the conveyor belt, a purging gap is formed between the end cap and the conveyor belt, allowing the airflow to enter the originally blocked area, thereby effectively eliminating dust residue in the bottom blind area.

[0010] Optionally, adjusting the conveyor belt according to a preset lifting method includes: Obtain the end cap length of the battery pack end cap in the conveying direction; The protrusion spacing of the protrusion assembly is determined according to the end cap length. The protrusion assembly includes a first protrusion assembly and a second protrusion assembly. The first protrusion assembly and the second protrusion assembly are adjusted according to the protrusion spacing. Real-time acquisition of the conveying position of the battery pack end cap; In response to the conveying position reaching the preset protrusion area, the protrusion component is controlled to protrude upward and drive the conveyor belt to protrude upward, so that a purging gap is formed between the battery pack end cover and the conveyor belt for airflow to enter. The moving speeds of the first protruding component and the second protruding component are determined according to the conveying speed of the conveyor belt, and the first protruding component and the second protruding component are controlled to move along the conveying direction according to the moving speed. In response to the conveying position deviating from the preset protrusion area, the first protrusion component and the second protrusion component are controlled to perform a reset operation.

[0011] By adopting the above technical solution, when the battery pack end cover enters the preset protrusion area, the protrusion component is controlled to partially lift the conveyor belt, so that a purging gap is formed between the bottom of the battery pack end cover and the conveyor belt. In the lifted state, the protrusion component is synchronously driven to move along the conveying direction, so that while the battery pack end cover is stably supported, its bottom area generates continuous relative displacement with respect to the lower rotating air knife. This allows the airflow of the lower rotating air knife to continuously and completely purge the originally blocked bottom area, avoiding the limited purging range caused by only partial lifting and improving the adequacy of bottom dust removal.

[0012] Optionally, the placement orientation of the battery pack end cap is obtained before the conveying position reaches a preset adjustment distance of a preset protrusion interval; Determine whether the placement posture is the preset parallel posture; If not, determine the skew angle of the battery pack end cap relative to the transport direction; Based on the skew angle, differential speed adjustment is performed on the current conveying speed of the conveyor belt to generate a correction torque on the battery pack end cap during the conveying process. The target orientation of the upper rotating air knife is obtained based on the deflection angle, and the upper rotating air knife is adjusted according to the target orientation.

[0013] By adopting the above technical solution, the battery pack end cap's orientation is acquired and determined before it enters the preset protrusion area and is lifted. When a deviation of the end cap relative to the conveying direction is detected, differential speed adjustment is performed on the conveyor belt to generate a correction torque during the conveying process, thereby actively correcting the end cap's orientation before the lifting action occurs. At the same time, the orientation of the upper rotating air knife is adjusted synchronously according to the deviation angle to match the airflow direction with the correction direction, further enhancing the orientation correction effect and avoiding the problem of unstable support caused by the end cap's incorrect orientation after being lifted by the protrusion component, thereby improving the stability of the subsequent bottom dust removal process.

[0014] Optionally, the attitude change information of the battery pack end cap in the conveying direction can be acquired in real time; Based on the attitude change information, determine whether the battery pack end cap has an abnormal displacement restriction state; If so, then determine the jamming area between the battery pack end cap and the conveyor belt; Obtain the spatial distribution of the stuck area relative to the geometric center of the battery pack end cap; Determine the concentrated spray area of ​​the rotary air knife based on its spatial distribution. Based on the concentrated injection area, the downward rotating air knife is adjusted according to a preset air output ratio so that the jet air intensity in the concentrated injection area is greater than that in the non-concentrated injection area.

[0015] By adopting the above technical solution, when a jam is detected during the conveying of the battery pack end cap, the jet airflow of the lower rotating air knife can be directionally enhanced based on the location of the jammed area, so that the high-intensity airflow acts on the jammed part, thereby relieving the jam without additional mechanical intervention, ensuring the continuous conveying of the battery pack end cap and the stable dust removal effect in the bottom area.

[0016] Optionally, after the battery pack end cap is destaticated by the first destatic device, residual static electricity distribution information of the battery pack end cap is obtained. Based on residual static electricity distribution information, identify areas of stubborn dust adhesion on the battery pack end cap where the static electricity intensity is greater than the preset static electricity intensity. Calculate the auxiliary neutralization parameters based on the electrostatic intensity of the area where stubborn dust adheres; Determine whether the auxiliary neutralization parameter is greater than the preset neutralization standard value; If so, the ion introduction area of ​​the rotary air knife is determined based on the area where stubborn dust adheres; The ion-inlet area of ​​the rotating air knife outputs a charged ion gas flow toward the area where stubborn dust adheres.

[0017] By adopting the above technical solution, it is possible to identify stubborn dust attachment areas with high residual static electricity after the initial static electricity removal, and to use a rotating air knife to output charged ion airflow for auxiliary neutralization, thereby weakening the adhesion of static electricity to dust, improving the removal efficiency of stubborn dust, and avoiding insufficient dust removal in local areas.

[0018] Optionally, during the process of the rotary air knife outputting charged ion gas flow, information on the electrostatic attenuation changes in the area where stubborn dust adheres can be acquired in real time. Based on the electrostatic attenuation change information, the electrostatic dissipation rate of the area where stubborn dust adheres is calculated. Determine whether the static dissipation rate is lower than the preset dissipation rate threshold; If so, adjust the ion polarity combination in the ion introduction area of ​​the rotary air knife to change the local electric field distribution in the area where stubborn dust adheres. After adjusting the ion polarity combination, the electrostatic attenuation change information of the stubborn dust adhesion area was reacquired; Based on the updated electrostatic decay change information, the ion output intensity and output duration of the rotary air knife are dynamically corrected. When the electrostatic decay change information meets the preset dissipation completion condition, the rotary air knife is controlled to switch to non-ion output mode.

[0019] By adopting the above technical solution, real-time feedback adjustment can be made based on the electrostatic decay state during ion-assisted dust removal, adaptively adjusting the ion polarity combination, output intensity and duration, so that the static electricity in the stubborn dust attachment area can be quickly and fully dissipated, avoiding dust removal instability caused by excessive or insufficient ions, thereby improving the overall efficiency of static electricity removal and dust removal processes.

[0020] Secondly, this application provides a battery pack end cap dust removal system, which adopts the following technical solution: A battery pack end cap dust removal system, comprising: The acquisition module is used to acquire the transmission start signal; A memory for storing the program of the battery pack end cap dust removal method; The processor and the program in the memory can be loaded and executed by the processor to implement the dust removal method for the battery pack end cap.

[0021] By adopting the above technical solution, after the battery pack end cap enters the dust removal channel, a synergistic treatment method combining double-sided static elimination, rotary air knife initial dust removal, and single-sided air knife re-dust removal is used to control the static state of the end cap surface in stages before, during, and after dust removal. This effectively weakens the enhancing effect of static electricity on dust adhesion and reduces the risk of secondary static electricity and dust re-absorption during airflow purging. At the same time, the combined purging of rotary air knife and single-sided air knife ensures that dust on the end cap surface and bottom blind area is fully stripped and collected, thereby improving the dust removal effect of the battery pack end cap and meeting the requirements for the cleanliness of the battery pack end cap surface before assembly.

[0022] Thirdly, this application provides a smart terminal, which adopts the following technical solution: A smart terminal includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any one of the above methods.

[0023] Fourthly, this application provides a computer storage medium capable of storing corresponding programs, which facilitates improving the dust removal effect on the battery pack end caps, and adopts the following technical solution: A computer-readable storage medium storing a computer program that can be loaded by a processor and executed any of the above-described battery pack end cap dust removal methods.

[0024] In summary, this application includes at least one of the following beneficial technical effects: After the battery pack end cap enters the dust removal channel, a combined treatment method of double-sided static elimination, rotary air knife initial dust removal, and single-sided air knife re-dust removal is used to control the static state of the end cap surface in stages before, during, and after dust removal. This effectively weakens the enhancing effect of static electricity on dust adhesion and reduces the risk of secondary static electricity and dust back-suction during airflow purging. At the same time, the combined purging of rotary air knife and single-sided air knife ensures that dust on the end cap surface and bottom blind area is fully stripped and collected, thereby improving the dust removal effect of the battery pack end cap and meeting the requirements for the cleanliness of the battery pack end cap surface before assembly. By acquiring the support status of the battery pack end cap during the conveying process and dynamically identifying the contact area formed with the conveyor belt, it is possible to accurately locate the bottom dust removal blind area that is difficult to cover by the rotary air knife and the single-sided air knife. By lifting and adjusting the conveyor belt, a purging gap is formed between the end cap and the conveyor belt, allowing the airflow to enter the originally blocked area, thereby effectively eliminating dust residue in the bottom blind area. Before the battery pack end cap enters the preset protrusion area and is lifted, its placement posture is acquired and determined in advance. When a deviation of the end cap relative to the conveying direction is detected, differential speed adjustment is performed on the conveyor belt to generate a correction torque during the conveying process, thereby actively correcting the posture of the end cap before the lifting action occurs. At the same time, the orientation of the upper rotating air knife is adjusted synchronously according to the deviation angle to match the airflow direction with the correction direction, further enhancing the posture correction effect and avoiding the problem of unstable support due to incorrect posture after the end cap is lifted by the protrusion component, thereby improving the stability of the subsequent bottom dust removal process. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a battery pack end cap dust removal device according to an embodiment of this application.

[0026] Figure 2 This is a schematic flowchart of a method for dust removal from the end cap of a battery pack, as described in an embodiment of this application.

[0027] Figure 3 This is a flowchart of a contact blind zone dust removal method in an embodiment of this application.

[0028] Figure 4 This is a schematic diagram of the process of adjusting the conveyor belt according to a preset lifting method in an embodiment of this application.

[0029] Figure 5 This is a flowchart illustrating a posture alignment method in an embodiment of this application.

[0030] Figure 6 This is a flowchart illustrating a method for removing a stuck object in an embodiment of this application.

[0031] Figure 7This is a flowchart illustrating a method for removing stubborn dust adhesion in an embodiment of this application.

[0032] Figure 8 This is a flowchart illustrating an ion adjustment method in an embodiment of this application.

[0033] Explanation of reference numerals in the attached drawings: 1. Conveyor belt; 2. First static eliminator; 21. First upper static eliminator bar; 22. First lower static eliminator bar; 3. Rotary air knife; 31. Upper rotary air knife; 32. Lower rotary air knife; 4. Single-sided air knife; 41. Upper single-sided air knife; 42. Lower single-sided air knife; 5. Second static eliminator; 51. Second upper static eliminator bar; 52. Second lower static eliminator bar; 6. Dust collection device. Detailed Implementation

[0034] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1 -Appendix Figure 8 The present application will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the application.

[0035] This application discloses a dust removal device for battery pack end caps, referring to... Figure 1 The battery pack end cap dust removal device includes a conveyor belt 1, a first antistatic device 2, a rotary air knife 3, a single-sided air knife 4, a second antistatic device 5 arranged sequentially along the conveying direction of the conveyor belt 1, and a dust collection device 6 for covering the locations of the rotary air knife 3 and the single-sided air knife 4. Several conveyor belts 1 form a conveying channel for transporting the battery pack end caps. The first antistatic device 2 includes a first upper antistatic bar 21 located above the conveying channel and a first lower antistatic bar 22 located below the conveying channel. The rotary air knife 3 includes an upper rotary air knife 31 located above the conveying channel and a lower rotary air knife 32 located below the conveying channel. The single-sided air knife 4 includes an upper single-sided air knife 41 located above the conveying channel and a lower single-sided air knife 42 located below the conveying channel. The second antistatic device 5 includes a second upper antistatic bar 51 located above the conveying channel and a second lower antistatic bar 52 located below the conveying channel.

[0036] This application discloses a method for dust removal from the end cap of a battery pack. (Refer to...) Figure 2 Dust removal methods for battery pack end caps include: Step S101: In response to the conveying start signal of the battery pack end cover, control the battery pack end cover to enter the dust removal channel along the conveying direction. The dust removal channel includes several conveyor belts arranged at even intervals.

[0037] The conveying start signal is a signal generated when the battery pack end cover is conveyed on the conveying channel, indicating that the battery pack end cover has entered the dust removal process.

[0038] The conveying direction is the direction of rotation of the conveyor belt. In this embodiment, the conveying direction is defined as the direction in which the conveyor belt rotates from near the first antistatic bar toward the second antistatic bar.

[0039] Step S102: Perform static removal operation on the battery pack end cap using a first static removal device. The first static removal device includes a first upper dust removal bar disposed on the upper side of the dust removal channel and a first lower dust removal bar disposed on the lower side of the conveying channel.

[0040] The first static eliminator refers to a device assembly used to neutralize the static electricity of the battery pack end caps during the initial dust removal stage, including a first upper static eliminator bar and a first lower static eliminator bar.

[0041] The first upper antistatic bar and the first lower antistatic bar are antistatic actuators respectively installed on the upper side of the dust removal channel and the lower side of the conveying channel, used to release ions to the surface of the battery pack end cap to neutralize its surface static electricity.

[0042] The first upper and first lower antistatic bars are preferably AC-type antistatic structures, which neutralize the positive or negative charges carried on the surface of the battery pack end cap by alternately releasing positive and negative ions during operation.

[0043] Step S103: Perform initial dust removal on the battery pack end cap using a rotary air knife. The rotary air knife includes an upper rotary air knife located on the upper side of the conveying channel and a lower rotary air knife located on the lower side of the dust removal channel.

[0044] The rotary air knife is equipped with several rotary nozzles along its length to output airflow. During the blowing process, the rotary nozzles rotate circumferentially to form a rotating airflow with changing angles.

[0045] After the battery pack end cap enters the working area of ​​the rotary air knife, the upper and lower rotary air knives are triggered synchronously, and several rotary nozzles distributed along their length simultaneously emit air. During the rotation of the rotary nozzles, the airflow ejected from each rotary nozzle, when acting on the surface of the battery pack end cap, not only generates a normal scouring force, but also forms a tangential turbulent airflow distributed in different directions on the end cap surface.

[0046] The coordinated action of multiple rotating nozzles along the length of the rotating air knife causes the airflow to form a continuous and interlaced rotating sweeping trajectory on the surface of the battery pack end cover, thereby breaking the boundary layer of dust adhesion on the end cover surface and achieving overall loosening and initial peeling of the dust.

[0047] Step S104: Perform a dust removal operation on the battery pack end cap using a single-sided air knife. The single-sided air knife includes an upper single-sided air knife located on the upper side of the conveying channel and a lower single-sided air knife located on the lower side of the dust removal channel.

[0048] A single-sided air knife has a fixed air outlet direction relative to the surface of the battery pack end cap, used to create a high-speed airflow in a single main direction to perform directional purging of the target surface. The air outlet of a single-sided air knife has a strip-shaped structure, used to create a continuous airflow surface covering the target area during operation.

[0049] After the rotary air knife completes its initial dust removal operation, the battery pack end cover enters the effective area of ​​the single-sided air knife. Once the upper and lower single-sided air knives are triggered, their continuous strip-shaped air outlets simultaneously emit air along their length, creating a continuous airflow surface covering the battery pack end cover surface. This airflow surface is distributed in a single main direction relative to the end cover surface, ensuring a stable and consistent blowing direction throughout the entire affected area. Through the overall propulsive action of the airflow surface on the battery pack end cover surface, dust loosened by the rotary air knife can be blown off.

[0050] Step S105: Collect dust using a dust collection device that covers the locations of the rotary air knife and the single-sided air knife.

[0051] The dust collection device includes an upper dust collection hood located above the upper rotating air knife and the upper single-sided air knife and covering their respective locations, a lower dust collection hood located below the lower rotating air knife and the lower single-sided air knife and covering their respective locations, and an exhaust device connecting the upper dust collection hood and the lower dust collection hood, used to absorb dust within the range covered by the upper and lower dust collection hoods.

[0052] Step S106: After the dust removal operation, the battery pack end cap is destaticated by the second destatic device. The second destatic device includes a second upper destatic bar located on the upper side of the dust removal channel and a second lower destatic bar located on the lower side of the conveying channel.

[0053] The second static eliminator is a device used to neutralize static electricity on the end caps of a battery pack that has undergone dust removal, including a second upper static eliminator bar and a second lower static eliminator bar.

[0054] The second upper eliminator and the second lower eliminator are eliminator components respectively installed on the upper side of the dust removal channel and the lower side of the conveying channel. They are used to release ions onto the surface of the battery pack end cap to neutralize its surface static electricity.

[0055] The second static eliminator operates on the same principle as the first static eliminator.

[0056] In this application, a second static eliminator is installed after the re-dust removal operation. Its main purpose is to eliminate any static charges regenerated or remaining during the dust removal process, preventing dust re-absorption or secondary adhesion to the battery pack end caps after dust removal. Specifically, during the dust removal operation performed by the rotary air knife and the single-sided air knife, continuous friction occurs between the high-speed airflow and the surface of the battery pack end caps, easily leading to the re-accumulation of static charges on the end cap surface. If a static eliminator is only installed before dust removal, the static electricity generated during the dust removal process cannot be eliminated. Therefore, by installing a second static eliminator after the re-dust removal operation, the static electricity of the dust-removed battery pack end caps is neutralized, ensuring that the end caps are in a low-static-state state when leaving the dust removal channel. This reduces their ability to adsorb residual dust from the air, preventing the cleaned surface from being re-contaminated.

[0057] Reference Figure 3 This application provides a method for dust removal in contact blind areas, the method comprising: Step S201: After the battery pack end cover enters the dust removal channel, obtain the support status information of the battery pack end cover during the conveying process.

[0058] Support status information is used to characterize the orientation of the opening of the battery pack end cap during transportation, including the opening facing upwards and the opening facing downwards.

[0059] Support status information can be obtained through a visual inspection device.

[0060] Step S202: Obtain the contact area between the battery pack end cap and the conveyor belt based on the support status information.

[0061] The contact area refers to the area where the battery pack end cap comes into physical contact with the conveyor belt during transportation and is supported by the conveyor belt. This area corresponds to the force-bearing support surface of the end cap during transportation.

[0062] When the support status information indicates that the battery pack end cover is in the open-facing state, the closed bottom surface of the battery pack end cover faces the conveyor belt, and its bottom surface forms surface contact or multi-point contact with the conveyor belt. Thus, the corresponding area of ​​the bottom surface of the battery pack end cover is determined as the contact area.

[0063] In the case where the support status information is in the open-down state, the edge of the battery pack end cap is in contact with the conveyor belt. Since the contact area between the edge and the conveyor belt is small, the bottom dust removal blind area formed by the edge of the battery pack end cap and the conveyor belt is not considered in the dust removal operation of this embodiment.

[0064] Step S203: Based on the contact area, identify the bottom dust removal blind spot of the battery pack end cap that cannot be covered by the airflow of the rotating air knife and the single-sided air knife.

[0065] The bottom dust removal blind zone refers to the area at the bottom of the battery pack end cap that cannot be directly reached or effectively covered by the airflow generated by the rotating air knife and the single-sided air knife during the battery pack end cap conveying process, due to the contact relationship between the battery pack end cap and the conveyor belt.

[0066] After determining the contact area between the battery pack end cap and the conveyor belt, the blocking effect of the contact area on the airflow propagation path is analyzed to identify the bottom area of ​​the end cap that cannot be reached by the rotary air knife and the single-sided air knife under the current conveying state. Specifically, the close fit between the contact area and the conveyor belt blocks the airflow from the vertical direction of the dust removal channel, making the corresponding area a blind spot for airflow coverage. By mapping this blocking relationship, the location and range of the bottom dust removal blind spot of the battery pack end cap under the current support state can be determined.

[0067] In one feasible embodiment: a correspondence model between the contact area and the airflow coverage area is constructed based on the distribution location of the contact area at the bottom of the battery pack end cap; the airflow range of the rotating air knife and the single-sided air knife is limited to the end cap surface area that is not blocked by the conveyor belt; the bottom area of ​​the end cap that corresponds to the contact area and is located outside the airflow range is determined as the bottom dust removal blind zone.

[0068] Step S204: Adjust the conveyor belt according to the preset lifting method to form a purging gap between the bottom dust removal blind zone and the conveyor belt, allowing airflow to enter.

[0069] The local support state of the conveyor belt is adjusted according to the preset lifting method, so that the conveyor belt is lifted upward at the corresponding position, thereby breaking the fit between the battery pack end cover and the conveyor belt, forming a blowing gap for airflow to enter in the bottom dust removal blind area, so that the airflow of the subsequent rotary air knife and single-sided air knife can enter and act on the area to blow away the dust in the area.

[0070] The specific steps for adjusting the conveyor belt according to the preset lifting method can be found in [reference needed]. Figure 4 The steps in the embodiments.

[0071] Reference Figure 4 The conveyor belt is adjusted according to a preset lifting method, including: Step S301: Obtain the end cap length of the battery pack end cap in the conveying direction.

[0072] The end cap length refers to the dimension of the battery pack end cap along the preset conveying direction in the current conveying state. This length corresponds to the front and rear projection dimensions of the battery pack end cap on the conveyor belt. In this embodiment, the current conveying state means that the length or width of the battery pack end cap is parallel to the conveying direction. If the length or width of the battery pack end cap is not parallel to the conveying direction, the placement position of the battery pack end cap can be corrected. Specific steps can be found in [reference needed]. Figure 5The steps in the embodiments.

[0073] After the battery pack end cap enters the dust removal channel and is in a stable conveying state, its length in the conveying direction is obtained to characterize the occupied range of the battery pack end cap in the conveying direction. This end cap length serves as the basic parameter for subsequently determining the protrusion spacing and protrusion range of the protrusion assembly, ensuring that the protrusion operation can cover the effective support area of ​​the battery pack end cap.

[0074] Step S302: Determine the protrusion spacing of the protrusion assembly according to the end cap length, wherein the protrusion assembly includes a first protrusion assembly and a second protrusion assembly, and adjust the first protrusion assembly and the second protrusion assembly according to the protrusion spacing.

[0075] Reference Figure 1 The battery pack end cap dust removal device also includes a protrusion component 7. The initial position of the protrusion component 7 is located near the rotating air knife 3. The protrusion component 7 includes a first protrusion component 71 and a second protrusion component 72. The first protrusion component 71 and the second protrusion component 72 are arranged sequentially along the conveying direction.

[0076] The protrusion spacing refers to the distance between the first protrusion assembly and the second protrusion assembly. After obtaining the end cap length of the battery pack end cap in the conveying direction, the protrusion spacing between the first protrusion assembly and the second protrusion assembly is determined based on the end cap length, so that the distribution of the two protrusion assemblies in the conveying direction can correspondingly cover the effective support area of ​​the battery pack end cap.

[0077] After obtaining the protrusion spacing, keep the second protrusion assembly at the lower rotating air knife, and control the first protrusion assembly to move in the opposite direction of the conveying direction by the distance corresponding to the protrusion spacing.

[0078] Step S303: Real-time acquisition of the conveying position of the battery pack end cap.

[0079] The conveying position can be obtained by an infrared sensor installed in the conveying channel.

[0080] Step S304: In response to the conveying position reaching the preset protrusion area, control the protrusion component to protrude upward and drive the conveyor belt to protrude upward, so that a purging gap for airflow to enter is formed between the battery pack end cover and the conveyor belt.

[0081] The preset protrusion interval refers to the interval range defined along the conveying direction. This interval is determined by the positions of the first protrusion component and the second protrusion component in the conveying direction, and is used to limit the effective working area of ​​the protrusion component to perform the upward protrusion action.

[0082] The purging gap refers to the space between the bottom of the battery pack end cover and the conveyor belt after the raised component protrudes upward and drives the conveyor belt to move upward. This gap is used to allow the airflow of the rotary air knife and the single-sided air knife to enter and purge the bottom dust blind area.

[0083] Specifically, "responding to the preset protrusion interval" means that the front end of the battery pack end cover reaches the second protrusion component, and the battery pack end cover is located within the preset protrusion interval. When the battery pack end cover reaches the preset protrusion interval, the protrusion component is triggered to perform an upward protrusion action. Through the linkage structure between the protrusion component and the conveyor belt, the corresponding position of the conveyor belt is driven to protrude upward synchronously, so that the battery pack end cover is lifted as a whole, thereby forming a continuous purging gap between its bottom and the conveyor belt.

[0084] Step S305: Determine the moving speed of the first protruding component and the second protruding component according to the conveying speed of the conveyor belt, and control the first protruding component and the second protruding component to move along the conveying direction according to the moving speed.

[0085] The moving speed refers to the speed at which the first protruding component and the second protruding component move along the conveying direction, and is used to keep the relative position of the protruding components synchronized with the battery pack end cover in the protruding state.

[0086] After the battery pack end cap enters the preset protrusion area and protrudes upward by the protrusion assembly, the current conveying speed of the conveyor belt is obtained. Based on the conveying speed, the target moving speed of the first and second protrusion assemblies along the conveying direction is determined, so that the protrusion assemblies can move synchronously with the battery pack end cap in the protruding state. Subsequently, according to the determined moving speed, the first and second protrusion assemblies are controlled to move along the conveying direction to continuously maintain the blowing gap within the entire preset protrusion area, so that the lower rotating air knife can continuously perform blowing and dust removal operations on the blowing gap.

[0087] Step S306: In response to the conveying position leaving the preset protrusion area, control the first protrusion component and the second protrusion component to perform a reset operation.

[0088] The response to the conveying position leaving the preset protrusion zone refers to the tail end of the battery pack end cap leaving the second protrusion assembly, indicating that the battery pack end cap has left the protrusion area formed by the protrusion assembly. Afterwards, the first and second protrusion assemblies are controlled to reset to the state before the conveying position reaches the preset protrusion zone.

[0089] This application provides a posture alignment method, referring to... Figure 5 The method includes: Step S401: Before the conveying position reaches the preset adjustment distance of the preset protrusion interval, obtain the placement posture of the battery pack end cap.

[0090] The preset adjustment distance is a constant that is not preset. It is used to adjust the attitude of the battery pack end cover when the battery pack end cover is not in the preset orientation.

[0091] The placement posture of the battery pack end cap can be identified and obtained through a visual inspection device. For example, when the battery pack end cap moves along the conveying direction and is still a preset adjustment distance away from the preset protrusion area, the visual inspection device acquires an image of it. If the identification result shows that the length direction of the battery pack end cap is at a certain angle to the conveying direction and does not meet the preset posture of the length direction being perpendicular to the conveying direction, then it can be determined that posture adjustment is needed before it enters the preset protrusion area, thereby avoiding uneven force or tilting of the end cap during the lifting of the protrusion component.

[0092] Step S402: Determine whether the placement posture is the preset parallel posture; The preset posture refers to the position of the battery pack end cap on the conveyor belt, where its length direction is parallel to the conveying direction or it is within a preset skew angle with the conveying direction. It is used as a criterion for determining whether posture adjustment is needed. The preset skew angle is a preset constant that can be adjusted according to actual needs. In this embodiment, the preset skew angle can be set to ±10°.

[0093] During the transport of the battery pack end caps in the conveying channel, since the specifications of the battery pack end caps are not fixed, there are cases where the length direction of the battery pack end cap is parallel to the conveying direction or perpendicular to the conveying direction. Both of these directions are defined as preset postures. In this embodiment, the preset posture is mainly that the length direction of the battery pack end cap is parallel to the conveying direction.

[0094] Step S403: If not, determine the skew angle of the battery pack end cap relative to the transport direction.

[0095] The skew angle refers to the angle between the length direction of the battery pack end cap and the transport direction, and is used to quantitatively characterize the degree of inclination of the battery pack end cap relative to the transport direction.

[0096] In one feasible embodiment: Based on the battery pack end cap contour image obtained by the vision inspection device, the main direction line corresponding to the length direction of the end cap is extracted; the angle between the main direction line and the reference axis where the conveying direction is located is calculated to obtain the included angle between the two, i.e., the skew angle.

[0097] Step S404: Based on the skew angle, perform differential speed adjustment on the current conveying speed of the conveyor belt to generate a correction torque on the battery pack end cap during conveying.

[0098] Differential speed adjustment refers to setting different conveying speeds for the conveyor belts located at the bottom of the battery pack end cover to create a speed difference at the bottom of the battery pack end cover. For example, the conveyor belts are divided into a first conveyor belt group and a second conveyor belt group along the centerline, and the conveying speeds of the first conveyor belt group and the second conveyor belt group are adjusted respectively to create a speed difference between the conveyor belts.

[0099] Correction torque refers to the rotational torque generated between the battery pack end cap and the conveyor belt due to the different conveying speeds of the conveyor belt, which is used to drive the battery pack end cap to rotate in the direction of reducing the skew angle.

[0100] The target speed of the first conveyor belt group and the target speed of the second conveyor belt group corresponding to the skew angle can be obtained by looking up the table according to the preset skew angle-conveyor belt speed correspondence table. Based on the target speed of the first conveyor belt group and the target speed of the second conveyor belt group, the rotation speed of the first conveyor belt group and the second conveyor belt group is adjusted respectively, so that the battery pack end cover generates a correction torque to reduce the skew angle during the conveying process; when the skew angle gradually decreases to less than the preset attitude threshold, the conveying speed of each conveyor belt is restored to a consistent speed to maintain the stable conveying of the battery pack end cover along the conveying direction.

[0101] Step S405: Obtain the target orientation of the upper rotating air knife based on the deflection angle, and adjust the upper rotating air knife according to the target orientation.

[0102] The target orientation refers to the pointing angle of the overall jet airflow of the rotating air knife relative to the conveying direction. This target orientation includes both a lateral component for correcting the deflection of the battery pack end cap and a reverse component for suppressing the conveying speed of the battery pack end cap.

[0103] Based on the deflection direction of the battery pack end cap relative to the conveying direction, the direction of the corrective airflow to reduce the deflection angle is determined. On this basis, an airflow component opposite to the conveying direction is introduced to produce a deceleration effect on the battery pack end cap. Based on the superposition relationship of the above two directions, the target orientation of the upper rotating air knife is obtained, so that the airflow output by the upper rotating air knife simultaneously generates a corrective torque and a damping deceleration aerodynamic force on the upper surface of the battery pack end cap.

[0104] In one feasible embodiment, when the battery pack end cap is detected to be tilted to the first side, the target orientation of the upper rotating air knife is obtained from a preset "tilt direction-injection angle correspondence table" according to the tilt angle, and the target orientation is used as the control adjustment angle of the upper rotating air knife.

[0105] This application provides a method for disengaging stuck components, referring to... Figure 6 The method includes: Step S501: Real-time acquisition of the attitude change information of the battery pack end cap in the conveying direction.

[0106] Attitude change information refers to the change in the spatial attitude of the battery pack end cap relative to the preset conveying direction over time during the conveying process. It is used to reflect the deflection angle of the battery pack end cap during the conveying and deflection correction process, as well as the trend of the deflection angle over the conveying time.

[0107] The attitude change information can be obtained by collecting image information of the battery pack end cap during the transportation process, and by calculating the tilt angle of the battery pack end cap relative to the preset transportation direction and the trend of the tilt angle changing with the transportation time based on the edge features, corner features or contour features of the battery pack end cap in the image.

[0108] Step S502: Based on the attitude change information, determine whether the battery pack end cover has an abnormal displacement restriction state.

[0109] Abnormal displacement restriction refers to the situation where, during the conveying and skew correction process, although the differential speed adjustment of the conveyor belt and the upper rotating air knife correction action have been executed, the attitude change of the battery pack end cover does not occur as expected. This is manifested as an abnormally reduced amplitude of the skew angle change, a significant decrease in the rate of change, or the appearance of an abnormal stable state, thus reflecting that the displacement of the battery pack end cover in the conveying direction is locally constrained or blocked.

[0110] Based on the attitude change information, it is determined whether the placement attitude of the battery pack end cover has changed from a deflected state to a state parallel to the conveying direction during the skew correction process. When the battery pack end cover stops deflecting and correcting before reaching the preset parallel attitude, it is determined that the battery pack end cover has an abnormal displacement restriction state.

[0111] Step S503: If yes, then determine the jamming area between the battery pack end cap and the conveyor belt.

[0112] The stuck area refers to a relatively fixed contact point formed due to local constraints during the transportation and skew correction of the battery pack end cap. This contact point restricts the deflection correction of the battery pack end cap at that position.

[0113] When the battery pack end cap is in an abnormal displacement restricted state, the battery pack end cap will no longer translate as a whole or rotate uniformly during the subsequent skew correction process, but will rotate around the restricted contact point. Based on the characteristics of the change in the tilt angle of the battery pack end cap over time in the attitude change information, the instantaneous rotation center position of the battery pack end cap is determined, and the bottom contact position corresponding to the rotation center is determined as the jamming area between the battery pack end cap and the conveyor belt.

[0114] In one feasible embodiment, a continuous rotation trajectory model of the battery pack end cap during the skew correction process is constructed based on the attitude change information over a continuous time period. In this continuous rotation trajectory model, the instantaneous rotation center position of the battery pack end cap during the time period is obtained by fitting and inversely solving the trajectory of the battery pack end cap attitude change over time. The projection area of ​​the instantaneous rotation center on the conveyor belt is determined as the jamming area between the battery pack end cap and the conveyor belt.

[0115] Step S504: Obtain the spatial distribution position of the stuck area relative to the geometric center of the battery pack end cap.

[0116] The spatial distribution of the jamming area relative to the geometric center of the battery pack end cover refers to the relative position of the jamming area within the overall plane of the battery pack end cover relative to the geometric center point of the battery pack end cover. It is used to characterize which side of the geometric center the jamming area is located on, the direction of offset, and the degree of offset. The geometric center of the battery pack end cover refers to the center position determined based on the outer contour dimensions of the battery pack end cover, and can serve as a unified spatial reference benchmark.

[0117] Using the geometric center of the battery pack end cap as the reference origin, the position of the stuck area in the plane of the battery pack end cap is mapped to obtain the directional relationship and relative offset position of the stuck area relative to the geometric center.

[0118] Step S505: Determine the concentrated spray area of ​​the rotating air knife based on its spatial distribution.

[0119] The concentrated spray area refers to the spray area formed by several rotating nozzles in the lower rotating air knife, which correspond to the spatial distribution of the stuck area. This area is formed by individually adjusting the air output parameters of the corresponding rotating nozzles to create a more concentrated airflow effect compared to other nozzles.

[0120] After obtaining the spatial distribution position of the stuck area relative to the geometric center of the battery pack end cap, the target rotating nozzle set in the lower rotating air knife corresponding to the projection position of this spatial distribution position on the bottom of the battery pack end cap is determined. The target rotating nozzle set is determined as the concentrated spray area, and the spray direction of the target rotating nozzle is determined according to the spatial distribution direction of the stuck area, so that the airflow output by the corresponding rotating nozzle can be concentrated on the stuck area to apply directional aerodynamic force to the stuck area, thereby weakening the contact constraint between the stuck area and the conveyor belt.

[0121] Step S506: Based on the concentrated injection area, adjust the lower rotating air knife according to the preset air output ratio so that the jet air intensity in the concentrated injection area is greater than that in the non-concentrated injection area.

[0122] The preset air output ratio refers to a pre-set proportional parameter used to control the airflow output distribution relationship between different rotating nozzles in the rotary air knife, and is used to control the relative jet airflow intensity of each rotating nozzle.

[0123] The jet flow intensity of the concentrated jet area refers to the air flow rate output by each rotating nozzle within the concentrated jet area per unit time, which is used to enhance the local aerodynamic effect on the stuck area.

[0124] The non-concentrated spray area refers to the spray area corresponding to the other rotating nozzles in the lower rotating air knife, excluding the concentrated spray area.

[0125] After determining the concentrated spray area, the air output state of the lower rotating air knife is adjusted according to the preset air output ratio. This causes the rotating nozzles located in the concentrated spray area to spray at a higher ratio, while the rotating nozzles located in the non-concentrated spray area spray at a lower ratio. This creates a locally enhanced airflow effect in the concentrated spray area, thereby providing greater aerodynamic support at the corresponding jamming area to break the local jamming constraint between the battery pack end cap and the conveyor belt.

[0126] This application provides a method for removing stubborn dust adhesion, referring to... Figure 7 The method includes: Step S601: After performing static elimination operation on the battery pack end cover using the first static elimination device, obtain the residual static distribution information of the battery pack end cover.

[0127] Residual static electricity distribution information refers to the spatial distribution of static charge remaining on the surface of the battery pack end cap in different areas after the first static electricity removal device has performed the static electricity removal operation. It is used to characterize the relative magnitude and distribution differences of static electricity intensity in each area.

[0128] The residual static electricity distribution information does not only indicate whether static electricity exists in the whole, but is used to reflect whether there are areas with high local static electricity intensity on the surface of the battery pack end cap.

[0129] In one feasible embodiment, an electrostatic discharge (ESD) sensor is used to scan and detect the surface of the battery pack end cap to obtain residual electrostatic distribution information. The ESD sensor can be arranged above and below the dust removal channel along the conveying direction of the battery pack end cap, and collects the electrostatic intensity at different locations on the end cap surface as the end cap passes through its detection area. During the detection process, the surface of the battery pack end cap is divided into several detection areas along its length and width, and the corresponding ESD value for each detection area is obtained. Based on the ESD values ​​of each detection area, residual electrostatic distribution information of the battery pack end cap surface is constructed to characterize the differences in the distribution of electrostatic charge in different areas of the end cap surface. It should be noted that this residual electrostatic distribution information can be represented in matrix form, region mapping form, or continuous distribution form; this embodiment does not limit this representation.

[0130] Step S602: Based on the residual static electricity distribution information, identify areas on the battery pack end cover where stubborn dust adheres and the static electricity intensity is greater than the preset static electricity intensity.

[0131] Electrostatic strength is a parameter used to characterize the residual static electricity level on the surface of an area where stubborn dust adheres, reflecting the area's ability to adsorb dust.

[0132] Stubborn dust adhesion areas refer to the areas on the battery pack end cap surface that, after the first static elimination operation of the device, still exhibit a static intensity greater than a preset static intensity, as identified based on residual static electricity distribution information. These areas, due to their high residual static intensity, readily attract and retain airborne dust or dust that has been disturbed by airflow but has not yet completely detached, thus exhibiting characteristics that conventional airflow dust removal methods struggle to completely remove.

[0133] The preset electrostatic strength is a threshold parameter used to distinguish whether the surface of the battery pack end cap needs further enhanced dust removal treatment. It can be set according to the actual dust removal conditions, end cap material, or cleanliness requirements.

[0134] Step S603: Calculate the auxiliary neutralization parameters based on the electrostatic intensity of the area where stubborn dust adheres.

[0135] The auxiliary neutralization parameters are a set of control parameters calculated additionally to further neutralize static electricity in the stubborn region. They mainly include the ion concentration of the charged ion gas flow introduced into the rotating air knife.

[0136] By reading the measured electrostatic intensity data of the area where stubborn dust adheres, the amount of ion neutralization that needs to be supplemented is calculated in real time through a preset mapping relationship, and then converted into specific parameter values ​​that can be directly used to control the ion introduction of the rotating air knife, thus obtaining the calculation auxiliary neutralization parameters.

[0137] Step S604: Determine whether the auxiliary neutralization parameter is greater than the preset neutralization standard value.

[0138] The preset neutralization standard value is a threshold parameter used as a benchmark for determining auxiliary neutralization parameters. It is used to characterize whether enhanced neutralization treatment needs to be performed on areas with stubborn dust adhesion.

[0139] Step S605: If so, determine the ion introduction area of ​​the rotary air knife based on the area where stubborn dust adheres.

[0140] Since the rotary air knife has several rotary nozzles for airflow output along its length, by matching the spatial distribution of the stubborn dust attachment area on the battery pack end cover with the position of several rotary nozzles along the length of the rotary air knife, some rotary nozzles are selected as ion introduction areas, so that the charged ion airflow is only output at the corresponding nozzles, thus achieving directional neutralization.

[0141] Step S606: Output charged ion airflow towards the area where stubborn dust adheres through the ion introduction area of ​​the rotating air knife.

[0142] The charged ion airflow is a neutralized airflow that carries ions of a predetermined polarity and moves with the airflow, output by a rotating nozzle in the ion inlet area. It is used to perform electrostatic neutralization and dust removal on the target area.

[0143] By controlling the predetermined ion introduction area in the rotary air knife, the corresponding rotary nozzle is directed towards the area where stubborn dust adheres, outputting a charged ion airflow, thereby forming a local neutralization electric field in the area where stubborn dust adheres, weakening the electrostatic adsorption force and promoting dust removal.

[0144] This application provides an ion adjustment method, referring to... Figure 8 The method includes: Step S701: During the process of the rotary air knife outputting charged ion gas flow, the electrostatic attenuation change information of the stubborn dust adhesion area is acquired in real time.

[0145] Electrostatic decay change information is used to characterize the dynamic information of the decrease in electrostatic intensity over time in the area where stubborn dust adheres, and it reflects the changing trend of electrostatic neutralization effect.

[0146] While the rotary air knife outputs a charged ion gas flow, the electrostatic intensity of the area where stubborn dust adheres is periodically collected; a time series is constructed based on the electrostatic intensity data obtained from multiple collections; and corresponding electrostatic decay change information is generated based on the time series.

[0147] Step S702: Calculate the electrostatic dissipation rate of the area where stubborn dust adheres based on the electrostatic attenuation change information.

[0148] The electrostatic dissipation rate is a quantitative parameter used to characterize how quickly the electrostatic intensity in the area where stubborn dust adheres decays over time.

[0149] In one feasible embodiment, firstly, the electrostatic intensity time series corresponding to the electrostatic attenuation change information is obtained; based on the electrostatic intensity difference between adjacent time points and the corresponding time interval, the electrostatic attenuation per unit time is calculated; the electrostatic attenuation per unit time is averaged over multiple unit time periods to serve as the electrostatic dissipation rate of the stubborn dust adhesion area.

[0150] Step S703: Determine whether the static dissipation rate is lower than the preset dissipation rate threshold.

[0151] The preset dissipation rate threshold is used as a threshold parameter to determine the electrostatic dissipation rate. It is used to characterize whether the area with stubborn dust adhesion has reached the expected electrostatic dissipation efficiency.

[0152] Step S704: If so, adjust the ion polarity combination in the ion introduction area of ​​the rotating air knife to change the local electric field distribution in the area where stubborn dust adheres.

[0153] On the other hand, if the static dissipation rate is not lower than the preset dissipation rate threshold, no additional processing is required.

[0154] Ion polarity combination refers to the polarity configuration of ions with different charges that are sequentially output in the ion introduction region, which is used to adjust the electric field distribution state in the target region.

[0155] Local electric field distribution refers to the spatial distribution characteristics of the electric field formed by the airflow of charged ions around the area where stubborn dust adheres.

[0156] In one feasible embodiment, while keeping the position of the ion introduction area unchanged, the polarity configuration of the ion output is changed; the single polarity ion output is switched to the multi-polarity alternating ion output, or different polarities of ion output are configured for different rotating nozzles; by adjusting the combination of ion polarities, a new local electric field distribution is formed in the area where stubborn dust adheres.

[0157] Step S705: After adjusting the ion polarity combination, reacquire the electrostatic attenuation change information of the stubborn dust adhesion area.

[0158] After adjusting the ion polarity combination, this step involves re-monitoring the electrostatic state of the area with stubborn dust adhesion. By re-acquiring information on changes in electrostatic attenuation, the impact of adjusting the ion polarity combination on the electrostatic neutralization effect can be evaluated.

[0159] Step S706: Based on the updated electrostatic decay change information, dynamically correct the ion output intensity and output duration of the rotating air knife.

[0160] Ion output intensity refers to the control parameter used to characterize the number of charged ions output per unit time by a rotary air knife within the ion inlet region.

[0161] Output duration refers to the control parameter used to limit the length of time that the rotary air knife continuously outputs a charged ion gas flow within the ion inlet region.

[0162] In one feasible embodiment, the electrostatic dissipation rate of the stubborn dust attachment area is recalculated based on the updated electrostatic decay change information; the adjustment range of the ion output intensity is determined according to the degree of deviation of the electrostatic dissipation rate from the preset dissipation rate threshold, and the duration of ion output is adjusted synchronously to match the ion output process with the electrostatic dissipation process of the stubborn dust attachment area. The adjustment range corresponding to the degree of deviation can be obtained by looking up a preset deviation-adjustment range table.

[0163] Step S707: When the electrostatic decay change information meets the preset dissipation completion condition, control the rotary air knife to switch to non-ion output mode.

[0164] The preset dissipation completion condition refers to the judgment condition used to determine that the static electricity in the area where stubborn dust is attached has been fully dissipated. It is set based on the static electricity decay change information.

[0165] Non-ion output mode refers to the rotary air knife outputting only conventional airflow that does not carry charged ions in this mode.

[0166] Based on the same inventive concept, embodiments of this application provide a battery pack end cap dust removal system, including: The acquisition module is used to acquire the transmission start signal; Memory for storing the program for the dust removal method of the battery pack end cap; The processor and memory can load and execute programs to implement the battery pack end cap dust removal method.

[0167] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0168] This application provides a computer-readable storage medium storing a computer program that can be loaded by a processor and executed as a method for cleaning the end cap of a battery pack.

[0169] Computer storage media include, for example, USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, optical disks, and other media that can store program code.

[0170] Based on the same inventive concept, embodiments of this application provide a smart terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as a method for cleaning dust from the end cap of a battery pack.

[0171] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional modules is used as an example. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device, and unit described above can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0172] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Any feature disclosed in this specification (including the abstract and drawings) may be replaced by other equivalent or similar features unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is only one example of a series of equivalent or similar features.

Claims

1. A battery pack end cover dust removal method, characterized by, The method comprises the following steps: In response to the conveying start signal of the battery pack end cover, the battery pack end cover is controlled to enter the dust removal channel in the conveying direction, and the dust removal channel comprises a plurality of conveying belts arranged uniformly and at intervals; The battery pack end cover is subjected to static electricity removal operation by the first static electricity removal device, and the first static electricity removal device comprises a first upper static electricity removal rod located on the upper side of the dust removal channel and a first lower static electricity removal rod located on the lower side of the conveying channel; The battery pack end cover is subjected to initial dust removal operation by the rotary air knife, and the rotary air knife comprises an upper rotary air knife located on the upper side of the conveying channel and a lower rotary air knife located on the lower side of the dust removal channel; The battery pack end cover is subjected to re-dust removal operation by the one-side air knife, and the one-side air knife comprises an upper one-side air knife located on the upper side of the conveying channel and a lower one-side air knife located on the lower side of the dust removal channel; Dust is collected by the dust collection device, and the dust collection device covers the positions of the rotary air knife and the one-side air knife; After the re-dust removal operation, the battery pack end cover is subjected to static electricity removal operation by the second static electricity removal device, and the second static electricity removal device comprises a second upper static electricity removal rod located on the upper side of the dust removal channel and a second lower static electricity removal rod located on the lower side of the conveying channel.

2. The battery pack end cap de-dusting method of claim 1, wherein, The method further comprises the following steps: After the battery pack end cover enters the dust removal channel, support state information of the battery pack end cover in the conveying process is acquired; According to the support state information, a contact area of the battery pack end cover and the conveying belt is acquired; According to the contact area, a bottom dust blind area of the battery pack end cover that cannot be covered by the air flow of the rotary air knife and the one-side air knife is determined; According to a preset lifting method, the conveying belt is adjusted, so that a blow gap for the air flow to enter is formed between the bottom dust blind area and the conveying belt.

3. The battery pack end cap de-dusting method of claim 2, wherein, According to the preset lifting method, the conveying belt is adjusted, which comprises the following steps: An end cover length of the battery pack end cover in the conveying direction is acquired; According to the end cover length, a protrusion interval of a protrusion assembly is determined, wherein the protrusion assembly comprises a first protrusion assembly and a second protrusion assembly, and the first protrusion assembly and the second protrusion assembly are adjusted according to the protrusion interval; A conveying position of the battery pack end cover is acquired in real time; In response to the conveying position reaching a preset protrusion interval, the protrusion assembly is controlled to protrude upward and drive the conveying belt to protrude upward, so that the blow gap for the air flow to enter is formed between the battery pack end cover and the conveying belt; According to the conveying speed of the conveying belt, a moving speed of the first protrusion assembly and the second protrusion assembly is determined, and the first protrusion assembly and the second protrusion assembly are controlled to move in the conveying direction according to the moving speed; In response to the conveying position leaving the preset protrusion interval, the first protrusion assembly and the second protrusion assembly are controlled to perform a reset operation.

4. The battery pack end cap de-dusting method of claim 3, wherein, The method further comprises the following steps: In response to the conveying position reaching a preset adjustment distance before the preset protrusion interval, a placement posture of the battery pack end cover is acquired; It is judged whether the placement posture is a preset parallel posture; If not, an inclination angle of the battery pack end cover relative to the conveying direction is determined; Based on the inclination angle, a differential speed adjustment operation is performed on the current conveying speed of the conveying belt, so that a correction torque is generated for the battery pack end cover in the conveying process; According to the inclination angle, a target orientation of the upper rotary air knife is acquired, and the upper rotary air knife is adjusted according to the target orientation.

5. The battery pack end cap de-dusting method of claim 4, wherein, The method further comprises the following steps: In real time, posture change information of the battery pack end cover in the conveying direction is acquired. According to the attitude change information, it is judged whether the battery pack end cover appears an abnormal displacement limited state; If yes, the jamming area between the battery pack end cover and the conveying belt is determined; The spatial distribution position of the jamming area relative to the geometric center of the battery pack end cover is obtained; According to the spatial distribution position, the concentrated spraying area of the lower rotary air knife is determined; Based on the concentrated spraying area, the preset air outlet proportion of the lower rotary air knife is adjusted, so that the spraying air flow intensity of the concentrated spraying area is greater than that of the non-concentrated spraying area.

6. The battery pack end cap de-dusting method of claim 1, wherein, The method further comprises: After the battery pack end cover is subjected to the static electricity removal operation by the first static electricity removal device, residual static electricity distribution information of the battery pack end cover is obtained; Based on the residual static electricity distribution information, a stubborn dust adhering area on the battery pack end cover with static electricity intensity greater than a preset static electricity intensity is identified; According to the static electricity intensity of the stubborn dust adhering area, an auxiliary neutralization parameter is calculated; It is judged whether the auxiliary neutralization parameter is greater than a preset neutralization standard value; If yes, an ion introduction area of the rotary air knife is determined according to the stubborn dust adhering area; The charged ion air flow is output from the ion introduction area of the rotary air knife towards the stubborn dust adhering area.

7. The battery pack end cap de-dusting method of claim 6, wherein, The method further comprises: In the process of outputting the charged ion air flow by the rotary air knife, the static electricity decay change information of the stubborn dust adhering area is obtained in real time; Based on the static electricity decay change information, the static electricity dissipation rate of the stubborn dust adhering area is calculated; It is judged whether the static electricity dissipation rate is lower than a preset dissipation rate threshold value; If yes, the ion polarity combination of the ion introduction area of the rotary air knife is adjusted to change the local electric field distribution of the stubborn dust adhering area; After the ion polarity combination is adjusted, the static electricity decay change information of the stubborn dust adhering area is re-obtained; Based on the updated static electricity decay change information, the ion output intensity and output duration of the rotary air knife are dynamically corrected; When the static electricity decay change information meets a preset dissipation completion condition, the rotary air knife is controlled to switch to a non-ion output mode.

8. A battery pack end cap dusting system characterized by, The system is used to execute the battery pack end cover dust removal method as claimed in any one of claims 1 to 7, comprising: an acquisition module for acquiring a conveying start signal; a memory for storing the program of the battery pack end cover dust removal method; a processor, the program in the memory can be loaded and executed by the processor and implement the battery pack end cover dust removal method.

9. A smart terminal, characterized by including a memory and a processor, the memory has stored thereon a computer program capable of being loaded and executed by the processor to execute the method as claimed in any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that, a computer program capable of being loaded and executed by the processor to execute the method as claimed in any one of claims 1 to 7. a computer program capable of being loaded and executed by the processor to execute the method as claimed in any one of claims 1 to 7.

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