Air guide assembly, cleaning device and battery production line

Abstract

The application discloses a wind guide assembly, a cleaning device and a battery production line. The wind guide assembly is used for processing the cleaning object in the battery shell. The battery shell comprises a containing cavity extending along the axial direction. The battery shell is provided with an opening at one end along the axial direction. The opening is communicated with the containing cavity. The wind guide assembly comprises a shell. The shell comprises a cleaning end. The cleaning end is suitable for extending into the containing cavity through the opening. The cleaning end is provided with a first air outlet and a first air inlet. The shell comprises an air outlet channel communicated with the first air outlet and an air inlet channel communicated with the first air inlet. The air flow is configured to be guided out of the containing cavity by the first air outlet and guided into the first air inlet from the containing cavity. The cleaning device comprises the wind guide assembly and a fixing assembly. The fixing assembly comprises a first end and a second end arranged oppositely to clamp the battery shell. The battery production line comprises the cleaning device. The wind guide assembly, the cleaning device and the production line can effectively remove the sundries in the battery shell and guarantee the production quality of the battery.

Description

Technical Field

[0001] This invention relates to the field of battery casing dust removal technology, and in particular to an air guide assembly, a cleaning device, and a battery production line. Background Technology

[0002] Before encapsulation, the inside of the steel-cased battery needs to be cleaned of dust and other deposits to ensure battery performance, prevent short circuits and leakage, and extend battery life.

[0003] In related technologies, air blowing devices are typically used to detach the adhering material from the steel shell. However, the adhering material is scattered by the airflow and easily falls into the airflow dead zones of the steel shell or onto the already cleaned steel shell, resulting in poor cleaning effectiveness. Furthermore, the adhering material can scatter within the cleaning device, affecting its lifespan. Another method involves using suction devices to clean debris from the steel shell, but the airflow generated by suction is weaker than that generated by blowing, making it unable to remove strongly adhering debris. Summary of the Invention

[0004] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention proposes an air guide assembly that can effectively remove debris from inside the battery casing, ensuring the production quality of the battery.

[0005] A first aspect of the present invention provides an air guide assembly for handling materials to be cleaned inside a battery casing. The battery casing includes a receiving cavity extending along its axial direction, and an opening is provided at one end of the battery casing along the axial direction, the opening communicating with the receiving cavity. The air guide assembly includes:

[0006] The housing includes a cleaning end adapted to extend into the receiving cavity through the opening. The cleaning end is provided with a first air blowing port and a first air suction port. The interior of the housing includes an air blowing channel communicating with the first air blowing port and an air suction channel communicating with the first air suction port.

[0007] The airflow is configured to be directed from the first air outlet to the receiving cavity, and then introduced from the receiving cavity into the first air inlet.

[0008] In some embodiments, a plurality of first air intake ports are provided, and each first air intake port is spaced apart along the axial direction.

[0009] In some embodiments, a plurality of first air intake ports are provided, and each of the first air intake ports is circumferentially spaced around the axial direction.

[0010] In some embodiments, the air guide assembly further includes a base, which is arranged opposite to the cleaning end. The base is provided with a second air blowing port and a second air intake port. The end of the air blowing channel opposite to the first air blowing port is connected to the second air blowing port, and the end of the air intake channel opposite to the first air intake port is connected to the second air intake port.

[0011] In some embodiments, the housing abuts against the base to define a cavity, the air guide assembly includes an air supply pipe, the air blowing channel is defined by the air supply pipe, and the air supply pipe is disposed in the cavity.

[0012] In some embodiments, the housing and the gas supply pipe together form an air intake channel surrounding the outer periphery of the gas supply pipe.

[0013] In some embodiments, the housing is detachably connected to the base.

[0014] A second aspect of the present invention provides a cleaning device for treating the contents of a battery casing to be cleaned. The cleaning device includes an air guide assembly as described in the above embodiments, and a fixing assembly. The fixing assembly includes a first end and a second end arranged opposite to each other, the second end being configured to approach the first end along the axial direction to clamp the battery casing.

[0015] A third aspect of the present invention provides a battery production line including the cleaning apparatus described in the above embodiments.

[0016] According to the above embodiments, the beneficial effects of the present invention are:

[0017] In the technical solution of this application, the housing of the air guide assembly has a cleaning end that can extend into the battery housing cavity. The cleaning end is provided with a first air blowing port communicating with the air blowing channel and a first air suction port communicating with the air suction channel. The air blowing can be discharged from the first air blowing port, and the air suction can be introduced from the first air suction port. That is, the air blowing and part of the air suction can be superimposed on the battery housing cavity and flow, causing the object to be cleaned to be removed from the battery housing. Compared with the method of using only air blowing or air suction, the air guide assembly of this solution generates a stronger airflow and has a greater cleaning effect on the object to be cleaned. The air suction and part of the air blowing can carry the object to be cleaned into the housing through the first air suction port, which can prevent the attached object from scattering and falling into the dead corner of the airflow. In summary, the air guide assembly of this solution can effectively remove the attached object in the battery housing, improve the cleanliness of the battery housing, ensure the production quality of the battery, and extend the service life of the cleaning device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the cleaning device of some embodiments of the present invention along one direction;

[0020] Figure 2 This is a schematic diagram of the cleaning device of some embodiments of the present invention in another direction;

[0021] Figure 3 This is a side view of a cleaning device according to some embodiments of the present invention;

[0022] Figure 4 These are schematic diagrams of the battery casing structure according to some embodiments of the present invention;

[0023] Figure 5 This is a cross-sectional schematic diagram of a cleaning device according to some embodiments of the present invention; wherein the battery casing is not clamped or fixed;

[0024] Figure 6 This is a cross-sectional schematic diagram of a cleaning device according to some embodiments of the present invention; wherein the battery casing is clamped and fixed;

[0025] Figure 7 This is a cross-sectional schematic diagram of a cleaning device according to some embodiments of the present invention; wherein the cleaning end extends into the battery casing;

[0026] Figure 8 This is a schematic diagram of the air guide assembly in a clean state according to some embodiments of the present invention; wherein, the dashed line with arrows indicates the direction of airflow.

[0027] Figure 9 These are schematic diagrams of the air guide assembly according to other embodiments of the present invention; wherein the outer contour of the housing is an isosceles trapezoid.

[0028] Figure 10 This is a schematic diagram of the air guide assembly in some embodiments of the present invention; wherein the first air intake is arranged at an angle.

[0029] In the accompanying drawings, the reference numerals indicate:

[0030] Cleaning device 1;

[0031] Air guide assembly 10;

[0032] Housing 100; Cleaning end 110; First air inlet 111; First air intake 112; Air blowing channel 120;

[0033] Inhalation channel 130; cavity 140; air delivery tube 150;

[0034] Base 200; Second air inlet 210; Second air inlet 220;

[0035] Battery casing 300; receiving cavity 310; opening 320; bottom end 330;

[0036] Fixed component 20;

[0037] First end 201; Second end 202;

[0038] Lifting component 30;

[0039] Axial direction Z.

[0040] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0043] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or," "and / or," or "and / or" throughout the text implies three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0044] In related technologies, air blowing devices are typically used to detach the adhering material from the steel shell. However, the adhering material is scattered by the airflow and easily falls into the airflow dead zones of the steel shell or onto the already cleaned steel shell, resulting in poor cleaning effectiveness. Furthermore, the adhering material can scatter within the cleaning device, affecting its lifespan. Another method involves using suction devices to clean debris from the steel shell, but the airflow generated by suction is weaker than that generated by blowing, making it unable to remove strongly adhering debris.

[0045] In view of this, a first aspect of the present invention provides an air guiding assembly 10. Reference is made below. Figures 1 to 10 The air guide assembly 10 according to an embodiment of the present invention will be described. The air guide assembly 10 can effectively handle the debris to be cleaned inside the battery casing 300. It is understood that the debris to be cleaned can be various impurities such as dust and metal particles that have accumulated and adhered during production, manufacturing, and transportation.

[0046] Reference Figures 1 to 8 It should be noted that the battery casing 300 is the outer shell of the battery, mainly used to protect the electrolyte and electrodes inside the battery and ensure the normal operation of the battery. In this embodiment, a steel-cased battery casing 300 is used as an example.

[0047] The battery casing 300 includes a receiving cavity 310 extending along its axial direction Z. (See reference...) Figure 4 In some embodiments, the battery casing 300 can be a cylindrical steel casing, in which case the axial direction Z refers to the direction of the rotation center axis of the cylindrical steel casing. In other embodiments, the battery casing 300 can also be a square steel casing, in which case the axial direction Z refers to the direction of the centerline of the square steel casing, the centerline passes through the intersection of the two diagonals at one end of the square steel casing and is parallel to the height direction of the square steel casing.

[0048] Reference Figure 4The battery casing 300 has an opening 320 at one end along the Z-axis, and the opening 320 communicates with the receiving cavity 310. It can be understood that the electrolyte and electrodes can be placed in the receiving cavity 310 through the opening 320.

[0049] Reference Figures 1 to 3 as well as Figures 4 to 10 The air guide assembly 10 includes a housing 100. The housing 100 has a cleaning end 110, which extends through the opening 320 of the battery housing 300 into the receiving cavity 310 to perform cleaning operations on the interior of the battery housing 300. (See reference...) Figure 7 and Figure 8 It is understood that, in order for the cleaning end 110 to be able to penetrate the receiving cavity 310, the maximum cross-sectional area of ​​the cleaning end 110 along the circumferential direction perpendicular to the axis Z can be set as S1, and the maximum cross-sectional areas of the opening 320 and the receiving cavity 310 along the circumferential direction perpendicular to the axis Z can be set as S2 and S3 respectively, with S1 being less than S2 and S1 being less than S3.

[0050] Reference Figures 1 to 3 The cleaning end 110 is provided with a first air blowing port 111 and a first air suction port 112. It can be understood that the first air blowing port 111 is used to generate a blowing airflow to detach the material to be cleaned from the steel shell. The first air suction port 112 is used to generate a suction airflow, which can both superimpose with the blowing airflow to remove strongly adhered material from the steel shell and also suck the material to be cleaned into the housing 100 to prevent it from scattering.

[0051] Reference Figure 7 and Figure 8 The housing 100 includes an air blowing channel 120 communicating with a first air blowing port 111 and an air intake channel 130 communicating with a first air intake port 112. The air blowing channel 120 is used to allow airflow to pass through and exit from the first air blowing port 111, while the air intake channel 130 is used to allow airflow to pass through and enter from the first air intake port 112. The airflow is configured to be directed from the first air blowing port 111 to the receiving cavity 310 of the battery housing 300, and then introduced from the receiving cavity 310 into the first air intake port 112.

[0052] It should be noted that, in order to ensure that the airflow can flow normally in the receiving cavity 310 and cause the object to be cleaned to fall off from the inside of the battery casing 300, the first air blowing port 111 should be spaced apart from the inner wall of the battery casing 300. Similarly, the first air intake port 112 should also be spaced apart from the inner wall of the battery casing 300.

[0053] In the technical solution of this application, the housing 100 of the air guide assembly 10 has a cleaning end 110 that can extend into the receiving cavity 310 of the battery housing 300. The cleaning end 110 is provided with a first air blowing port 111 communicating with the air blowing channel 120 and a first air suction port 112 communicating with the air suction channel 130. The blowing airflow can be discharged from the first air blowing port 111, and the suction airflow can be introduced from the first air suction port 112. That is, the blowing airflow and part of the suction airflow can be superimposed on the receiving cavity 310 of the battery housing 300 and flow, so that the object to be cleaned can be removed from the battery housing 300. Compared with the method of using only blowing airflow or suction airflow, the airflow generated by the air guide assembly 10 of this solution is stronger and has a greater cleaning power for the object to be cleaned. The suction airflow and part of the blowing airflow can carry the cleaned object into the housing 100 through the first air suction port 112, which can prevent the attached object from scattering and falling into the dead corner of the airflow. In summary, the air guide component 10 of this solution can effectively remove deposits inside the battery casing 300, improve the cleanliness of the battery casing 300, ensure the production quality of the battery, and extend the service life of the cleaning device 1.

[0054] Understandably, referring to Figures 1 to 3 In some embodiments, multiple first air intake ports 112 are provided, and each first air intake port 112 is distributed at intervals along the axial direction Z. Specifically, the multiple first air intake ports 112 can be distributed at intervals along the axial direction Z on the peripheral wall of the housing 100. It can be understood that the multiple air intake ports distributed at intervals along the axial direction Z can adsorb the objects to be cleaned at multiple positions along the axial direction Z of the battery housing 300, preventing some of the objects to be cleaned from flying off at positions far from the air intake ports, thereby expanding the effective adsorption area of ​​the air guiding assembly 10 and further improving the cleanliness of the battery housing 300. It should be noted that the intervals between the first air intake ports 112 can be uniform or non-uniform; this embodiment takes a non-uniform interval as an example.

[0055] It should be noted that, referring to Figures 1 to 3 In some embodiments, multiple first air intake ports 112 are provided, and each first air intake port 112 is circumferentially spaced along the circumferential axis Z. Specifically, the multiple first air intake ports 112 can be circumferentially spaced along the circumferential axis Z on the peripheral wall of the housing 100. It is understood that the debris to be cleaned that falls off with the airflow may be distributed at various positions on the inner peripheral wall of the battery housing 300. By arranging multiple first air intake ports 112 circumferentially, the debris to be cleaned circumferentially inside the battery housing 300 can be further removed, improving the cleanliness of the battery housing 300. This embodiment also uses the example of multiple first air intake ports 112 being evenly spaced circumferentially along the circumferential axis Z. In other embodiments, some of the first air intake ports 112 can also be provided at the end of the housing 100 near the opening 320 of the battery housing 300, which is not shown in the figures.

[0056] Reference Figure 3 as well as Figures 5 to 8In some embodiments, the battery casing 300 has a bottom end 330 opposite to the opening 320, and the first air inlet 111 is disposed facing the bottom end 330. It can be understood that the above-described arrangement of the first air inlet 111 allows the airflow to flow along the inner bottom wall of the bottom end 330 of the battery casing 300 towards the inner peripheral wall along the circumferential axis Z, so as to uniformly remove the debris to be cleaned from the battery casing 300. It should be noted that the first air inlet 111 can be single or multiple, depending on the actual situation; this embodiment uses a single first air inlet 111 as an example. In other embodiments, the first air inlet 111 may also be disposed facing the peripheral wall of the battery casing 300, with the first air inlet 111 spaced apart from the first air intake 112 (not shown in the accompanying drawings).

[0057] Reference Figure 1 and Figure 3 The air guide assembly 10 also includes a base 200, which is arranged opposite to the cleaning end 110 of the housing 100. The base 200 is provided with a second air outlet 210 and a second air inlet 220, as shown in the figure. Figure 8 The blowing channel 120 is connected to the second blowing port 210 at one end away from the first air intake 112. Specifically, when the blowing channel 120 is defined by the air supply pipe 150, the end of the air supply pipe 150 and the base 200 can be threaded together. The suction channel 130 is connected to the second air intake 220 at one end away from the first air intake 112. The above arrangement allows the suction channel 130 and the blowing channel 120 to be independent of each other, avoiding interference between the blowing airflow and the suction airflow to generate turbulent airflow and preventing the object to be cleaned from scattering.

[0058] Understandably, the housing 100 can abut against the base 200 to define the cavity 140. (See reference...) Figures 5 to 7 The air guide assembly 10 includes an air supply pipe 150, and the air blowing channel 120 can be defined by the air supply pipe 150. It should be noted that the air supply pipe 150 can be made of materials such as rubber or polyurethane. The air supply pipe 150 is located inside the cavity 140, i.e., inside the housing 100. Compared to having the air supply pipe 150 outside the housing 100, this avoids contact and friction between the air supply pipe 150 and the housing 100, preventing damage and leakage, and ensuring the stability of the air supply.

[0059] It should be noted that multiple second air inlets 220 can be provided, with each second air inlet 220 arranged at intervals to expand the area where the air inlets are located in the cavity 140, so that the object to be cleaned can fall into the storage device from between multiple air inlets, preventing the object to be cleaned from accumulating in the cavity 140.

[0060] Reference Figures 5 to 7In some embodiments, the outer contour of the housing 100 may be cylindrical, allowing the cylindrical housing 100 to fit the cylindrical battery housing 300, thus enabling the air guide assembly 10 to more evenly adsorb debris within the battery housing 300. In other embodiments, the outer contour of the housing 100 may be square, allowing the square housing 100 to fit the square battery housing 300, thus ensuring that the peripheral walls of the housing 100 and the battery housing 300 are evenly spaced. (Refer to...) Figure 9 In other embodiments, the outer contour of the housing 100 may also be an isosceles trapezoid, and the specific outer contour of the housing 100 may be determined according to the actual situation.

[0061] It should be noted that, for reference only Figure 9 When the housing 100 is an isosceles trapezoid, that is, along the direction from the base 200 to the cleaning end 110, the cross-sectional area of ​​the housing 100 in the direction perpendicular to the axial direction Z gradually decreases. Some of the heavier objects to be cleaned can slide into the first air intake 112 along the inclined peripheral wall of the housing 100, avoiding some objects to be cleaned from falling directly out from the gap between the steel shell and the air guide assembly 10, and improving the stability of the air guide assembly 10 in adsorbing the objects to be cleaned.

[0062] Reference Figures 5 to 7 In some embodiments, the housing 100 and the air supply pipe 150 together form an air intake channel 130 surrounding the outer periphery of the air supply pipe 150. Specifically, the inner wall of the housing 100 and the outer wall of the air supply pipe 150 together define the air intake channel 130. In other words, the housing 100 and the air supply pipe 150 together define a negative pressure chamber, allowing the material to be cleaned to enter the interior of the housing 100 through the second air intake port 220, preventing the material from scattering. In other embodiments, an air intake pipe can also be provided to define the air intake channel 130. The relevant configuration of the air intake pipe can refer to that of the air supply pipe 150, and the specific configuration can be determined according to the actual situation.

[0063] It is understood that in some embodiments, the housing 100 and the base 200 are detachably connected. Specifically, the housing 100 and the base 200 can be connected by bolts, screws, etc. It is understood that the detachable connection between the housing 100 and the base 200 facilitates the replacement and maintenance of the air supply pipe 150 or the suction pipe of the housing 100 by relevant personnel, preventing the accumulation and blockage of the material to be cleaned in the air blowing channel 120 or the air suction channel 130, and extending the service life of the air guide assembly 10. It should be noted that a sealing ring can also be provided between the housing 100 and the base 200 to prevent some gas from leaking between the housing 100 and the base 200, improving the utilization rate of the suction airflow and ensuring the adsorption strength of the air guide assembly 10.

[0064] Reference Figures 5 to 7 In some embodiments, the first intake port 112 extends in a direction perpendicular to the axial direction Z, facilitating the machining of the housing 100. In other embodiments, refer to... Figure 10 The first air intake 112 extends obliquely. Specifically, the position where the first air intake 112 contacts the cavity 140 is lower than the position where the first air intake 112 is away from the cavity 140. In other words, the extension direction of the first air intake 112 forms an acute angle with the axial direction Z. The oblique arrangement of the first air intake 112 facilitates the adsorption of the object to be cleaned into the cavity 140, reducing the adsorption force required for the air guide assembly 10. That is, the object to be cleaned can slide from the obliquely arranged first air intake 112 into the air guide assembly 10.

[0065] Reference Figures 1 to 3 as well as Figures 5 to 7 The second aspect of this application provides a cleaning device 1. The cleaning device 1 includes the air guide assembly 10 from any of the above embodiments, and also includes a fixing assembly 20. The fixing assembly 20 is used to fix the battery casing 300, facilitating cleaning of the battery casing 300 and preventing the battery casing 300 from shifting or being bumped by strong airflow. Specifically, the fixing assembly 20 includes a first end 201 and a second end 202 arranged opposite to each other.

[0066] Reference Figure 6 The first end 201 is used to abut the bottom of the steel shell. The first end 201 includes a first fixing member, which is connected to the cleaning device 1. Specifically, the first fixing member can be fixedly connected to the cleaning device 1. The first fixing member can be a square part or a round part, etc. For ease of processing the first fixing member, this embodiment takes a square part as an example. It can be understood that the first end 201 can be provided with a buffer pad to prevent the fixing component 20 from damaging the coating of the battery shell 300 when clamping the battery shell 300, which would have an adverse effect on the molded battery.

[0067] Reference Figures 1 to 3 The second end 202 is used to abut against the opening 320 end of the steel shell. The second end 202 is provided with a groove, and the opening 320 end of the battery shell 300 can be accommodated in the groove, thereby stably driving the battery shell 300 closer to the first end 201 to clamp the battery shell 300. It can be understood that the shape of the groove depends on the shape of the battery shell 300. When the battery shell 300 is square, the groove can be set to be square. In this embodiment, a cylindrical battery shell 300 and a circular groove are used as examples. It should be noted that a through hole can be provided in the center of the groove so that the cleaning end 110 of the shell 100 can pass through the through hole and enter the receiving cavity 310 of the battery shell 300. The cleaning device 1 of this application can effectively remove debris inside the battery shell 300, improve the cleanliness of the battery shell 300, and ensure the production quality of the battery. The second end 202 is configured to approach the first end 201 along the axial direction Z, thereby clamping and fixing the battery shell 300 together with the first end 201.

[0068] Reference Figures 1 to 3In some embodiments, the cleaning device 1 may also be provided with a lifting component 30. The end of the base 200 away from the housing 100 is connected to the lifting component 30. The lifting component 30 can drive the air guide component 10 to move along the axial direction Z so that the cleaning end 110 of the air guide component 10 can penetrate into the receiving cavity 310 of the battery housing 300.

[0069] A third aspect of this application also proposes a battery production line, which includes the cleaning device 1 described in the above embodiments. The battery production line of this application can ensure the production quality of batteries.

[0070] The following describes the main operation process of cleaning the battery casing 300 in a battery production line according to an embodiment.

[0071] Reference Figure 5 First, the battery case 300 to be cleaned is placed on the conveyor line (with the opening 320 of the battery case 300 facing down and the bottom 330 facing up), and the conveyor line moves the battery case 300 to the predetermined position of the cleaning device 1.

[0072] Reference Figure 6 Secondly, the second end 202 of the fixing component 20 of the cleaning device 1 drives the battery case 300 to approach the first end 201 of the fixing component 20 along the axial direction Z, thereby fixing and clamping the battery case 300.

[0073] Reference Figure 7 Subsequently, the lifting component 30 of the cleaning device 1 drives the air guide component 10 to move along the Z-axis, so that the cleaning end 110 of the air guide component 10 enters the receiving cavity 310 of the battery case 300.

[0074] Reference Figure 8 Finally, turn on the control switch of the air guide assembly 10. This causes the air pump to blow air from the air channel 120 to the first air outlet 111, and the air pump to draw air from the first air outlet through the air channel 130. The airflow is then directed along the first air outlet 111 to the receiving cavity 310, causing the material to be cleaned to detach from the inside of the battery casing 300. The suction airflow is then introduced from the first air outlet 112, thus adsorbing and collecting the detached material, completing the cleaning operation.

[0075] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0076] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ventilation assembly for handling debris inside a battery casing, the battery casing including a receiving cavity extending axially thereon, the battery casing having an opening at one end along the axial direction, the opening communicating with the receiving cavity, characterized in that, The air guide assembly includes: The housing includes a cleaning end adapted to extend into the receiving cavity through the opening. The cleaning end is provided with a first air blowing port and a first air suction port. The interior of the housing includes an air blowing channel communicating with the first air blowing port and an air suction channel communicating with the first air suction port. The outer contour of the housing is adapted to the battery case. The airflow is configured to be directed from the first air outlet to the receiving cavity, and then introduced from the receiving cavity into the first air inlet; Multiple first air intake ports are provided, and each first air intake port is distributed at intervals along the axial direction. Multiple first air intake ports are provided, and each first air intake port is circumferentially spaced around the axis. The battery casing has a bottom end opposite to the opening, and the first air inlet is disposed facing the bottom end.

2. The air guide assembly according to claim 1, characterized in that, The air guide assembly also includes a base, which is arranged opposite to the cleaning end. The base is provided with a second air blowing port and a second air intake port. The end of the air blowing channel opposite to the first air blowing port is connected to the second air blowing port, and the end of the air intake channel opposite to the first air intake port is connected to the second air intake port.

3. The air guiding assembly according to claim 2, characterized in that, The housing abuts against the base to define a cavity, the air guide assembly includes an air supply pipe, the air blowing channel is defined by the air supply pipe, and the air supply pipe is disposed in the cavity.

4. The air guide assembly according to claim 3, characterized in that, The housing and the gas supply pipe together form an air intake channel surrounding the outer periphery of the gas supply pipe.

5. The air guide assembly according to claim 3, characterized in that, The housing is detachably connected to the base.

6. A cleaning device for treating debris inside a battery casing, the cleaning device comprising an air guide assembly as described in any one of claims 1 to 5, characterized in that, Also includes: The fixing component includes a first end and a second end arranged opposite to each other, the second end being configured to approach the first end along the axial direction to clamp the battery case.

7. A battery production line, characterized in that, Includes the cleaning device as described in claim 6.

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