Cleaning device and battery manufacturing equipment

Abstract

The utility model discloses a cleaning device and battery manufacturing equipment. The cleaning device comprises a feeding mechanism, a first cleaning mechanism and a second cleaning mechanism. The feeding mechanism is used for providing batteries. The first cleaning mechanism is used for carrying out dry ice cleaning on the surface of the battery to remove a protection part on the surface of the battery; and the second cleaning mechanism is arranged at the downstream of the first cleaning mechanism and is used for cleaning the surfaces of the batteries cleaned by the first cleaning mechanism so as to remove residual substances on the surfaces of the batteries. According to the technical scheme provided by the invention, the protection part on the surface of the battery can be effectively removed, so that the manufacturing efficiency of the battery is improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a cleaning device and battery manufacturing equipment. Background Art

[0002] Energy conservation and emission reduction are the key to the sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy-saving and environmental protection advantages.

[0003] For electric vehicles, battery technology is an important factor related to their development. How to improve the manufacturing efficiency of batteries is a technical problem that needs to be solved urgently in battery technology. Utility Model Content

[0004] The present application provides a cleaning device and a battery manufacturing device. The technical solution provided in the present application can effectively remove the protective parts on the surface of the battery, thereby improving the manufacturing efficiency of the battery.

[0005] This application is achieved through the following technical solutions:

[0006] In a first aspect, some embodiments of the present application provide a cleaning device, the cleaning device comprising a feeding mechanism, a first cleaning mechanism, and a second cleaning mechanism. The feeding mechanism is used to provide a battery. The first cleaning mechanism is used to perform dry ice cleaning on the surface of the battery to remove the protective member on the surface of the battery. The second cleaning mechanism is arranged downstream of the first cleaning mechanism, and is used to clean the surface of the battery after being cleaned by the first cleaning mechanism to remove the residual substances on the surface of the battery.

[0007] In the above scheme, after the battery is dry-ice cleaned by the first cleaning mechanism to achieve the preliminary removal of the protective parts, the residual substances on the surface of the battery are cleaned and removed by the second cleaning mechanism. This can improve the removal efficiency of the battery's protective parts, reduce the risk of battery rework due to the presence of residual substances on the battery surface, and make the battery have a higher manufacturing efficiency.

[0008] According to some embodiments of the present application, the battery includes a peripheral wall and a first end wall, the peripheral wall is arranged around the edge of the first end wall, the peripheral wall includes two first side walls arranged opposite to each other along a first direction and two second side walls arranged opposite to each other along a second direction, and the first direction and the second direction are perpendicular to each other. The second cleaning mechanism includes a first sub-cleaning mechanism and a second sub-cleaning mechanism, the first sub-cleaning mechanism is used to clean the first side wall and the first end wall, and the second sub-cleaning mechanism is used to clean the second side wall.

[0009] In the above scheme, a scheme is provided for cleaning protective parts of polygonal batteries. By setting a first sub-cleaning mechanism and a second sub-cleaning mechanism, different positions of the battery can be cleaned separately, and residual substances on the battery surface can be removed effectively and without interfering with each other.

[0010] According to some embodiments of the present application, the first sub-cleaning mechanism includes a first rolling portion and a second rolling portion; the two first rolling portions are arranged relative to each other along a first direction to form a first chamber for accommodating batteries, and each first rolling portion is used to roll in contact with the corresponding first side wall to clean the first side wall; the second rolling portion is arranged between the two first rolling portions, and the second rolling portion is used to roll in contact with the first end wall to clean the first end wall.

[0011] In the above scheme, by setting the first rolling part and the second rolling part, they can respectively roll in contact with the first side wall and the first end wall of the battery, thereby effectively removing residual materials on the first side wall and the first end wall, improving the efficiency of removing the protective parts, reducing the risk of rework, and making the battery have higher manufacturing efficiency.

[0012] According to some embodiments of the present application, the first sub-cleaning mechanism further includes a first supporting portion, and the first rolling portion and the second rolling portion are rotatably disposed on the first supporting portion.

[0013] In the above scheme, by setting the first supporting portion, the first rolling portion and the second rolling portion can be effectively integrated, so that the first rolling portion and the second rolling portion are connected as a whole. On the one hand, it is beneficial for the first sub-cleaning mechanism to stably clean the surface of the battery and improve the manufacturing efficiency of the battery. On the other hand, it reduces the space occupied by the first sub-cleaning mechanism and improves the space utilization of the cleaning device.

[0014] According to some embodiments of the present application, the first supporting portion includes a first connecting member, a second connecting member, and a third connecting member;

[0015] Along the first direction, the two first connecting members are arranged relatively spaced apart, and the second connecting member is located between the two first connecting members and connects the two first connecting members;

[0016] Along the first direction, the two third connecting members are arranged at intervals relative to each other, and along the third direction, the third connecting member and the first connecting member are arranged at intervals relative to each other, and the first direction, the second direction and the third direction are perpendicular to each other in pairs;

[0017] Each first rolling portion is rotatably disposed between the corresponding first connecting member and the corresponding third connecting member, and the second rolling portion is rotatably disposed between two third connecting members.

[0018] In the above solution, the first supporting part has a simple structure and is easy to manufacture. At the same time, by connecting the two first connecting parts through the second connecting part and connecting the two third connecting parts through the second rolling part, the first rolling part and the second rolling part can be integrated into one efficiently and at a low material cost, which is beneficial to controlling the manufacturing cost and improving the lightweight degree of the cleaning device.

[0019] According to some embodiments of the present application, the first rolling portion includes multiple first sub-rolling portions, and the multiple first sub-rolling portions are arranged at intervals along the second direction; and / or the second rolling portion includes multiple second sub-rolling portions, and the multiple second rolling portions are arranged at intervals along the second direction.

[0020] In the above scheme, in some embodiments, through multiple first sub-rolling parts, the first side wall can be efficiently cleaned, the cleanliness of the first side wall is improved, the efficiency of removing the protective part is improved, and the risk of rework is reduced; in some embodiments, through multiple second sub-rolling parts, the first end wall can be efficiently cleaned, the cleanliness of the first end wall is improved, the efficiency of removing the protective part is improved, and the risk of rework is reduced.

[0021] According to some embodiments of the present application, a surface of the first rolling portion and a surface of the second rolling portion are both provided with an adhesive layer for adhering to residual substances on the surface of the battery.

[0022] In the above solution, by providing an adhesive layer on the surface of the first rolling part, when the first rolling part rolls in contact with the first side wall, the residual material on the surface can be adhered to. By providing an adhesive layer on the surface of the second rolling part, when the second rolling part rolls in contact with the first end wall, the residual material on the surface can be adhered to, thereby improving the cleaning effect of the battery and reducing the risk of rework.

[0023] According to some embodiments of the present application, the second sub-cleaning mechanism includes a driving part and a rolling brush part. The driving part is connected to the rolling brush part and is used to drive the rolling brush part to move around the peripheral wall. The rolling brush part is used to brush away residual materials on the second side wall and the edges of the peripheral wall.

[0024] In the above scheme, by setting up a driving part and a rolling brush part, the rolling brush part can move along the circumference of the battery, so that the second side wall and the edges and corners of the surrounding wall can be cleaned by rolling brushing, thereby improving the cleanliness of the surrounding wall surface, reducing the risk of rework, and improving the manufacturing efficiency of the battery.

[0025] According to some embodiments of the present application, the roller brush portion includes a brush.

[0026] In the above scheme, by rolling and wiping the edges and corners of the second side wall and the peripheral wall with a brush, residual substances on the edges and corners of the second side wall and the peripheral wall can be effectively removed, thereby improving the cleanliness of the battery surface, reducing the risk of rework, and improving the manufacturing efficiency of the battery.

[0027] According to some embodiments of the present application, the number of the roller brush parts is two, the two roller brush parts are symmetrically arranged based on the surrounding axis of the roller brush part, and the driving part drives the two roller brush parts to rotate simultaneously.

[0028] In the above scheme, by providing two rolling brush parts, and the two rolling brush parts are driven to rotate by the same driving part, the battery surface can be cleaned efficiently, the cleaning efficiency is improved, and then the manufacturing efficiency of the battery is improved.

[0029] According to some embodiments of the present application, the second sub-cleaning mechanism also includes a second supporting portion, which is used to support the battery; the second supporting portion is provided with an annular slide groove, and the end of the roller brush portion can be slidably disposed in the slide groove.

[0030] In the above solution, by providing the second support portion, the battery can be supported on one hand, and the rotation path of the roller brush portion can be constrained on the other hand, so that the roller brush portion can rotate around the battery smoothly.

[0031] According to some embodiments of the present application, the second sub-cleaning mechanism also includes a third supporting portion and a connecting portion, the third supporting portion and the second supporting portion are arranged relatively spaced apart along the third direction, the connecting portion connects the second supporting portion and the third supporting portion, the driving portion is arranged on the third supporting portion, and the first direction, the second direction and the third direction are perpendicular to each other.

[0032] In the above scheme, by setting the third support part and the connecting part, on the one hand, it can provide support for the driving part, and on the other hand, the roller brush can be driven by the driving part to rotate between the third support part and the second support part, thereby effectively cleaning the battery surface and reducing the risk of rework caused by residual substances on the battery surface, so that the battery has a higher manufacturing efficiency.

[0033] According to some embodiments of the present application, the battery includes a peripheral wall, a first end wall and a second end wall, and the peripheral wall is arranged between the first end wall and the second end wall; the first cleaning mechanism includes a bearing portion and a dry ice cleaning portion, the bearing portion is used to support the second end wall of the battery, and the dry ice cleaning portion is used to clean the surface of the peripheral wall and the surface of the first end wall.

[0034] In the above solution, by providing a bearing portion to support the second end wall of the battery, the dry ice cleaning portion can perform dry ice cleaning on the peripheral wall and the first end wall of the battery without affecting the second end wall, thereby improving the cleaning efficiency.

[0035] According to some embodiments of the present application, the battery further includes an electrode terminal, which is protruding from the second end wall; a recessed portion is provided on the surface of the bearing portion, and the recessed portion is used to accommodate the electrode terminal.

[0036] In the above scheme, by providing a recessed portion to accommodate the electrode terminal of the battery, the electrode terminal can be protected, thereby reducing the risk of failure of the electrode terminal due to dry ice cleaning and improving the reliability of the battery.

[0037] According to some embodiments of the present application, the dry ice cleaning unit includes a dry ice spray head and a dust extraction unit. The dry ice spray head is configured to be connected to the dry ice manufacturing unit to spray dry ice toward the battery; the dust extraction unit is used to absorb waste debris generated by dry ice cleaning.

[0038] In the above scheme, by providing a dry ice nozzle and a dust extraction unit, the splashed protective parts generated during the cleaning process and the residual substances remaining on the battery surface after cleaning can be effectively extracted while the battery is being cleaned with dry ice.

[0039] According to some embodiments of the present application, there are multiple dry ice cleaning parts, and the multiple dry ice cleaning parts correspond to different parts of the battery, respectively, and are used to clean the surfaces of the corresponding batteries.

[0040] In the above solution, by providing a plurality of dry ice cleaning units, different parts of the battery surface can be cleaned with dry ice at the same time, thereby improving the efficiency of dry ice cleaning.

[0041] According to some embodiments of the present application, along the first direction, two dry ice spray heads that are relatively spaced apart are staggered with each other; and / or, along the second direction, two dry ice spray heads that are relatively spaced apart are staggered with each other.

[0042] In the above solution, the two dry ice nozzles are staggered to reduce the risk of collision between two opposite surfaces of the battery and reduce the impact of dry ice on the battery.

[0043] In a second aspect, the present application further provides a manufacturing device, comprising a coating device and the cleaning device of any one of the first aspects. The coating device is used to coat the protective member on the surface of the battery after being cleaned by the cleaning device.

[0044] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0046] Figure 1 A schematic diagram of a cleaning device in some embodiments of the present application;

[0047] Figure 2 A schematic diagram of a battery in some embodiments of the present application;

[0048] Figure 3 This is a front view of the first sub-cleaning mechanism in some embodiments of the present application;

[0049] Figure 4 A side view of a first sub-cleaning mechanism in some embodiments of the present application;

[0050] Figure 5 A top view of a first sub-cleaning mechanism in some embodiments of the present application;

[0051] Figure 6 A schematic diagram of a second sub-cleaning mechanism in some embodiments of the present application;

[0052] Figure 7 A top view of the second supporting portion in some embodiments of the present application;

[0053] Figure 8 A top view of a partial structure of a first cleaning mechanism in some embodiments of the present application;

[0054] Fig. 9 A side view of a partial structure of a first cleaning mechanism in some embodiments of the present application;

[0055] Fig.10 This is a top view of the supporting portion in some embodiments of the present application.

[0056] Icons: 100-cleaning device; 200-battery; 201-first side wall; 202-second side wall; 203-first end wall; 204-second end wall; 205-electrode terminal; 10-first cleaning mechanism; 11-carrying part; 110-recessed part; 12-dry ice cleaning part; 120-dry ice nozzle; 121-dust extraction part; 13-transportation part; 20-second cleaning mechanism; 21-first sub-cleaning mechanism; 210-first rolling part; 2100-first sub-rolling part; 211- The second rolling part; 2110-the second sub-rolling part; 212-the first supporting part; 213-the first connecting member; 214-the second connecting member; 215-the third connecting member; 22-the second sub-cleaning mechanism; 220-the driving part; 221-the rolling brush part; 222-the second supporting part; 2220-the sliding groove; 223-the third supporting part; 30-the feeding mechanism; 40-the unloading mechanism; 50-the battery online device; 60-the battery offline device; x-the first direction; y-the second direction; z-the third direction. DETAILED DESCRIPTION

[0057] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0058] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned drawings and any variations thereof are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order or a primary and secondary relationship.

[0059] Reference to "embodiments" in this application means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments.

[0060] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "attached" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] The term "and / or" in this application is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0062] In the present application, the battery may include a lithium-ion battery, a lithium-sulfur battery, a sodium-lithium-ion battery, a sodium-ion battery or a magnesium-ion battery, etc., which is not limited in the embodiments of the present application. The battery may be cylindrical, flat, rectangular or other shapes, etc., which is not limited in the embodiments of the present application.

[0063] The battery includes a shell, and the surface of the shell is covered with a protective member, which can play a role in protecting the battery. In some embodiments, the protective member may include a blue film, and the blue film is covered and fixed on the surface of the shell of the battery. In some embodiments, when the battery is a square battery, the shell of the battery may include a shell and an end cover that closes the opening of the shell, and the blue film may cover the large surface (the surface with a larger area), the side surface and the bottom surface of the shell. In some embodiments, when the battery is a cylindrical battery, the shell of the battery may include a shell and an end cover that closes the opening of the shell, and the blue film may cover the circumferential surface and the bottom surface of the shell. In some embodiments, the blue film may include PET (Polyethylene terephthalate, commonly known as polyester resin)-glue layer-PET-glue layer, and the battery surface is connected to a layer of PET through the glue layer, and then a glue layer is set on the surface of the PET to connect another layer of PET. The glue layer can be a pressure-sensitive adhesive or a UV glue (Ultraviolet Rays glue, which is a shadowless glue, also known as photosensitive glue, ultraviolet light curing glue).

[0064] How to improve the manufacturing efficiency of batteries is a technical problem that needs to be solved urgently in battery technology. During the manufacturing process of batteries, the batteries will be reworked and the protective parts will be removed due to unqualified coating of protective parts; or during after-sales rework and recycling of retired batteries in the market, the protective parts will be removed first, and then the shell will be recycled to make new batteries. At present, dry ice cleaning is often used instead of manual cleaning to remove the protective parts on the surface of the battery. However, dry ice cleaning has poor precision and is prone to residual substances on the surface of the battery, resulting in rework and cleaning, which affects the manufacturing efficiency of the battery.

[0065] In view of this, in order to improve the cleaning efficiency of the battery, improve the removal efficiency of the protective parts to improve the manufacturing efficiency of the battery, some embodiments of the present application provide a cleaning device, the cleaning device includes a feeding mechanism, a first cleaning mechanism and a second cleaning mechanism. The feeding mechanism is used to provide the battery. The first cleaning mechanism is used to perform dry ice cleaning on the surface of the battery to remove the protective parts on the surface of the battery. The second cleaning mechanism is arranged downstream of the first cleaning mechanism, and is used to clean the surface of the battery after being cleaned by the first cleaning mechanism to remove residual substances on the surface of the battery.

[0066] In the above scheme, after the battery is dry-ice cleaned by the first cleaning mechanism to achieve the preliminary removal of the protective parts, the residual substances on the surface of the battery are cleaned and removed by the second cleaning mechanism. This can improve the removal efficiency of the battery's protective parts, reduce the risk of battery rework due to the presence of residual substances on the battery surface, and make the battery have a higher manufacturing efficiency.

[0067] The cleaning device disclosed in the embodiment of the present application includes but is not limited to cleaning the surface of the battery to remove the protective parts on the surface of the battery, and can also be used to clean other workpieces to remove the protective parts covering the surface thereof.

[0068] This application provides a cleaning device, see Figure 1 , Figure 1 Schematic diagram of a cleaning device 100 in some embodiments of the present application.

[0069] The cleaning device 100 includes a feeding mechanism 30, a first cleaning mechanism 10 and a second cleaning mechanism 20. The feeding mechanism 30 is used to provide a battery 200. The first cleaning mechanism 10 is used to perform dry ice cleaning on the surface of the battery 200 to remove the protective member on the surface of the battery 200. The second cleaning mechanism 20 is arranged downstream of the first cleaning mechanism 10, and is used to clean the surface of the battery 200 after being cleaned by the first cleaning mechanism 10 to remove the residual substances on the surface of the battery 200.

[0070] The cleaning device 100 may be a device capable of cleaning the surface of the battery 200 to remove the protective member covering the surface of the battery 200. In some embodiments, the protective member may be a blue film, and the blue film may include a glue layer and a PET layer.

[0071] In some embodiments, see Figure 1 , the feeding mechanism 30, the first cleaning mechanism 10 and the second cleaning mechanism 20 can be installed on the same mounting platform. The feeding mechanism 30 may include a manipulator. The battery 200 is transported to the first cleaning mechanism 10 and the second cleaning mechanism 20 by the manipulator for cleaning to remove the protective parts on the surface of the battery 200. The manipulator may be a multi-axis manipulator, so that it can grab the battery 200 and move the battery 200. Among them, the manipulator is a common device in the battery 200 production line, and this application will not go into details. In some embodiments, the cleaning device 100 may also include a feeding mechanism 40, and the feeding mechanism 40 may include a manipulator, which can feed the battery 200 cleaned by the first cleaning mechanism 10 and the second cleaning mechanism 20, and provide the battery 200 to the next process (for example, a coating process).

[0072] In some embodiments, the cleaning device 100 may also be configured with a battery on-line device 50. Several batteries are collected in the battery on-line device 50. The batteries are transported to the first cleaning mechanism 10 and the second cleaning mechanism 20 through the loading mechanism 30 for cleaning to remove protective parts on the surface of the batteries.

[0073] In some embodiments, the cleaning device 100 may also be configured with a battery offline device 60. The robot arm can grab the batteries cleaned by the second cleaning mechanism 20 to the battery offline device 60. The battery offline device 60 can collect several batteries and move the batteries out of the cleaning device 100 to provide them to the next process (such as the coating process).

[0074] In some embodiments, the first cleaning mechanism 10 may be a mechanism capable of spraying dry ice on the surface of the battery 200 to achieve dry ice cleaning of the surface of the battery 200. In some embodiments, dry ice cleaning can be explained as using the energy generated by the phase change of dry ice under normal pressure to cause the protective part to burst and separate. This process is called the dry ice "micro-explosion effect". At the same time, combined with the impact force generated by compressed air, the protective part on the surface of the battery 200 can be effectively removed. For example, when the protective part is a blue film, the PET layer and the glue layer can be removed.

[0075] The second cleaning mechanism 20 is a mechanism disposed downstream of the first cleaning mechanism 10, that is, the battery 200 is cleaned by the first cleaning mechanism 10 and then by the second cleaning mechanism 20. The second cleaning mechanism 20 can clean the surface of the battery 200 to remove substances remaining on the surface of the battery 200 that are not effectively removed by the first cleaning mechanism 10, such as the remaining PET layer and / or glue layer that is not cleaned up.

[0076] In the above scheme, after the battery 200 is dry-ice cleaned by the first cleaning mechanism 10 to achieve the preliminary removal of the protective parts, the residual substances on the surface of the battery 200 are cleaned and removed by the second cleaning mechanism 20, which can improve the removal efficiency of the protective parts of the battery 200 and reduce the risk of rework of the battery 200 due to the presence of residual substances on the surface of the battery 200, so that the battery 200 has a higher manufacturing efficiency.

[0077] According to some embodiments of this application, see Figure 2 , Figure 2 Schematic diagram of a battery 200 in some embodiments of the present application. The battery 200 includes a peripheral wall and a first end wall 203. The peripheral wall is arranged around the edge of the first end wall 203. The peripheral wall includes two first side walls 201 arranged opposite to each other along a first direction x and two second side walls 202 arranged opposite to each other along a second direction y. The first direction x and the second direction y are perpendicular to each other. The second cleaning mechanism 20 includes a first sub-cleaning mechanism 21 and a second sub-cleaning mechanism 22. The first sub-cleaning mechanism 21 is used to clean the first side wall 201 and the first end wall 203, and the second sub-cleaning mechanism 22 is used to clean the second side wall 202.

[0078] In some embodiments, the cleaning device 100 can be used to Figure 2 The surface of the battery 200 is shown being cleaned. Figure 2The battery 200 in the embodiment may be square. The battery 200 includes a peripheral wall, a first end wall 203 and a second end wall 204, the first end wall 203 and the second end wall 204 are arranged oppositely along the third direction z, and the peripheral wall is arranged between the first end wall 203 and the second end wall 204. In some embodiments, the first end wall 203 may be the bottom wall of the battery 200, the second end wall 204 may be the top wall of the battery 200, and the electrode terminal 205 of the battery 200 for outputting or inputting electric energy may be arranged on the second end wall 204. The peripheral wall and the first end wall 203 may be covered with a protective member. For this reason, the cleaning device 100 mainly cleans the peripheral wall and the first end wall 203. Among them, the peripheral wall may include four parts, the four parts are two oppositely arranged first side walls 201, and two oppositely arranged second side walls 202. The two first side walls 201 may be arranged oppositely along the first direction x, and the two second side walls 202 may be arranged oppositely along the second direction y. The first direction x, the second direction y and the third direction z are arranged vertically in pairs.

[0079] In some embodiments, the first direction x may be the thickness direction of the battery 200, the second direction y may be the length direction of the battery 200, and the third direction z may be the height direction of the battery 200. In some embodiments, the outer surface area of ​​the first side wall 201 is greater than the outer surface area of ​​the second side wall 202.

[0080] The first sub-cleaning mechanism 21 is a mechanism disposed downstream of the first cleaning mechanism 10, and is used to clean the first side wall 201 and the first end wall 203. Exemplarily, in some embodiments, after the battery 200 is cleaned by the first cleaning mechanism 10, the first side wall 201 and the first end wall 203 of the battery 200 are cleaned by the first sub-cleaning mechanism 21.

[0081] The second sub-cleaning mechanism 22 is a mechanism disposed downstream of the first cleaning mechanism 10 and is used to clean the second side wall 202. For example, in some embodiments, after the battery 200 is cleaned by the first cleaning mechanism 10, the second side wall 202 of the battery 200 is cleaned by the second sub-cleaning mechanism 22.

[0082] In some embodiments of the present application, the positional relationship between the first sub-cleaning mechanism 21 and the second sub-cleaning mechanism 22 is not limited. For example, in some embodiments, the battery 200 can be cleaned by the first sub-cleaning mechanism 21 first, and then by the second sub-cleaning mechanism 22. In other embodiments, the battery 200 can be cleaned by the second sub-cleaning mechanism 22 first, and then by the first sub-cleaning mechanism 21.

[0083] In the above scheme, a scheme is provided for cleaning the protective parts of a polygonal battery 200. By setting a first sub-cleaning mechanism 21 and a second sub-cleaning mechanism 22, different positions of the battery 200 can be cleaned separately, and residual substances on the surface of the battery 200 can be removed effectively and without interfering with each other.

[0084] According to some embodiments of this application, see 3- Figure 5 , Figure 3 This is a front view of the first sub-cleaning mechanism 21 in some embodiments of the present application. Figure 4 This is a side view of the first sub-cleaning mechanism 21 in some embodiments of the present application. Figure 5 1 is a top view of the first sub-cleaning mechanism 21 in some embodiments of the present application.

[0085] The first sub-cleaning mechanism 21 includes a first rolling portion 210 and a second rolling portion 211. The two first rolling portions 210 are arranged relatively spaced apart along the first direction x to form a first chamber for accommodating the battery 200, and each first rolling portion 210 is used for rolling contact with the corresponding first side wall 201 to clean the first side wall 201. The second rolling portion 211 is arranged between the two first rolling portions 210, and the second rolling portion 211 is used for rolling contact with the first end wall 203 to clean the first end wall 203.

[0086] The first rolling part 210 is a component for rolling contact with the first side wall 201 to clean the first side wall 201. The circumference of the first rolling part 210 may be provided with a brush, a sticky substance or other components that can remove residual substances on the surface of the first side wall 201 by contacting with the first side wall 201.

[0087] There are two first rolling parts 210 , and the two first rolling parts 210 correspond to two opposite first side walls 201 of the battery 200 , respectively, so as to clean the first side walls 201 , respectively.

[0088] The second rolling part 211 is a component for rolling contact with the first end wall 203 to clean the first end wall 203. The circumference of the second rolling part 211 can be provided with a brush, a sticky substance or other components that can remove residual substances on the surface of the first end wall 203 through contact with the first side wall 201.

[0089] In some embodiments, along the first direction x, the minimum distance between the two first rolling portions 210 is not less than the size of the battery 200 in the first direction x.

[0090] In some embodiments, a channel is formed between the two first rolling parts 210 , and the battery 200 can be placed in the channel. The first side wall 201 and the first end wall 203 are cleaned by the rotation of the first rolling part 210 and the second rolling part 211 .

[0091] In some embodiments, a channel is formed between the two first rolling parts 210, and the battery 200 can move between the channels to clean the first side wall 201 and the first end wall 203 through relative movement between the first rolling part 210 and the second rolling part 211, or to clean the first side wall 201 and the first end wall 203 through self-rotation of the first rolling part 210 and the second rolling part 211.

[0092] In the above scheme, by setting the first rolling part 210 and the second rolling part 211, they can respectively roll in contact with the first side wall 201 and the first end wall 203 of the battery 200, thereby effectively removing the residual materials on the first side wall 201 and the first end wall 203, improving the efficiency of removing the protective parts, reducing the risk of rework, and making the battery 200 have a higher manufacturing efficiency.

[0093] According to some embodiments of the present application, the first sub-cleaning mechanism 21 further includes a first supporting portion 212 , and the first rolling portion 210 and the second rolling portion 211 are rotatably disposed on the first supporting portion 212 .

[0094] The first support portion 212 is used to support the components of the first rolling portion 210 and the second rolling portion 211. Through the first support portion 212, the first rolling portion 210 and the second rolling portion 211 can be integrated into one. In some embodiments, the first support portion 212 can be a frame structure. Exemplarily, the first support portion 212 is a square frame structure, the two first rolling portions 210 are arranged on both sides of the square frame, the second rolling portion 211 is arranged at the bottom of the square frame, and a channel is formed inside the square frame for the battery 200 to enter and leave.

[0095] In the above scheme, by setting the first supporting portion 212, the first rolling portion 210 and the second rolling portion 211 can be effectively integrated, so that the first rolling portion 210 and the second rolling portion 211 are connected as a whole. On the one hand, it is beneficial for the first sub-cleaning mechanism to stably clean the surface of the battery 200 and improve the manufacturing efficiency of the battery 200. On the other hand, it reduces the space occupied by the first sub-cleaning mechanism and improves the space utilization rate of the cleaning device 100.

[0096] According to some embodiments of this application, please combine Figure 3-Figure 5The first supporting portion 212 includes a first connecting member 213, a second connecting member 214 and a third connecting member 215. Along the first direction x, the two first connecting members 213 are arranged at intervals relative to each other, and the second connecting member 214 is located between the two first connecting members 213 and connects the two first connecting members 213. Along the first direction x, the two third connecting members 215 are arranged at intervals relative to each other, and along the third direction z, the third connecting member 215 and the first connecting member 213 are arranged at intervals relative to each other, and the first direction x, the second direction y and the third direction z are perpendicular to each other. Each first rolling portion 210 is rotatably arranged between the corresponding first connecting member 213 and the corresponding third connecting member 215, and the second rolling portion 211 is rotatably arranged between the two third connecting members 215.

[0097] In some embodiments, the first support portion 212 may be a frame structure, which may be formed by connecting a first connector 213, a second connector 214, and a third connector 215. The first connector 213 may be a plate-shaped or rod-shaped structure, the second connector 214 may be a plate-shaped or rod-shaped structure, and the third connector 215 may be a plate-shaped or rod-shaped structure. The number of first connectors 213 is two, corresponding to the two first rolling portions 210, and the two first connectors 213 are arranged oppositely along the first direction x. For example, the first connector 213 is connected to one end of the first rolling portion 210. The two first connectors 213 are connected as a whole through the second connector 214, and the second connector 214 may be connected to the middle, end, or between the middle and end of the two first connectors 213. The number of second connectors 214 may be one, two, or more. For example, the number of second connectors 214 is two, and the two second connectors 214 are arranged oppositely along the second direction y and are located at both ends of the first connector 213.

[0098] There are two third connecting members 215, corresponding to two first rolling parts 210, and the two third connecting members 215 are arranged relatively spaced along the first direction x. Exemplarily, the third connecting member 215 is connected to the other end of the first rolling part 210. Exemplarily, along the first direction x, the third connecting member 215 and the first connecting member 213 on the same side are arranged correspondingly and spaced relatively in the third direction z so that the first rolling part 210 can be assembled, the first connecting member 213 is connected to one end of the first rolling part 210, and the third connecting member 215 is connected to the other end of the first rolling part 210.

[0099] The two third connecting members 215 are arranged relatively spaced apart along the first direction x, the second rolling portion 211 can be arranged between the two third connecting members 215, one end of the second rolling portion 211 can be connected to one of the third connecting members 215, and the other end of the second rolling portion 211 can be connected to the other third connecting member 215.

[0100] In some embodiments, the first rolling part 210 has a columnar structure, and its ends can be rotatably connected to the first connecting member 213 and the third connecting member 215. In some embodiments, the second rolling part 211 includes a columnar structure, and its ends can be rotatably connected between two third connecting members 215.

[0101] In the above solution, the first support part 212 has a simple structure and is easy to manufacture. At the same time, the two first connecting members 213 are connected by the second connecting member 214, and the two third connecting members 215 are connected by the second rolling part 211, so that the first rolling part 210 and the second rolling part 211 can be integrated into one efficiently and at a low material cost, which is beneficial to the control of manufacturing cost and to improving the lightweight degree of the cleaning device 100.

[0102] In some embodiments, the two third connecting members 215 may be connected and fixed by a fourth connecting member.

[0103] According to some embodiments of this application, see Figure 4 and Figure 5 The first rolling portion 210 includes a plurality of first sub-rolling portions 2100 , and the plurality of first sub-rolling portions 2100 are arranged at intervals along the second direction y.

[0104] According to some embodiments of the present application, the second rolling portion 211 includes a plurality of second sub-rolling portions 2110 , and the plurality of second rolling portions 211 are arranged at intervals along the second direction y.

[0105] In some embodiments, the first rolling portion 210 may include a plurality of first sub-rolling portions 2100 capable of rolling contact with the first side wall 201, and each first sub-rolling portion 2100 may simultaneously roll and clean the first side wall 201, thereby completing the cleaning of the first side wall 201 in a relatively short time. In some embodiments, the second rolling portion 211 may include a plurality of second sub-rolling portions 2110 capable of rolling contact with the first end wall 203, and each second sub-rolling portion 2110 may simultaneously roll and clean the first end wall 203, thereby completing the cleaning of the first end wall 203 in a relatively short time.

[0106] In the above scheme, in some embodiments, through multiple first sub-rolling parts 2100, the first side wall 201 can be efficiently cleaned, the cleanliness of the first side wall 201 is improved, the efficiency of removing the protective parts is improved, and the risk of rework is reduced; in some embodiments, through multiple second sub-rolling parts 2110, the first end wall 203 can be efficiently cleaned, the cleanliness of the first end wall 203 is improved, the efficiency of removing the protective parts is improved, and the risk of rework is reduced.

[0107] In other embodiments of the present application, the first rolling portion 210 may include a first sub-rolling portion 2100, and the first side wall 201 may be cleaned by moving the battery 200 along the second direction y or reciprocatingly. The second rolling portion 211 may include a second sub-rolling portion 2110, and the first end wall 203 may be cleaned by moving the battery 200 along the second direction y or reciprocatingly.

[0108] According to some embodiments of the present application, a surface of the first rolling portion 210 and a surface of the second rolling portion 211 are both provided with an adhesive layer for adhering to residual substances on the surface of the battery 200 .

[0109] In some embodiments, the adhesive layer is a structural layer with adhesiveness disposed on the surface of the first rolling portion 210 or the second rolling portion 211. In some embodiments, for the adhesive layer disposed on the first rolling portion 210, along the third direction z, the size of the adhesive layer may correspond to the size of the first side wall 201. In some embodiments, for the adhesive layer disposed on the second rolling portion 211, along the first direction x, the size of the adhesive layer may correspond to the size of the first end wall 203.

[0110] In the above solution, by providing an adhesive layer on the surface of the first rolling portion 210, residual substances on the surface of the first rolling portion 210 can be adhered when the first rolling portion 210 rolls against the first side wall 201. By providing an adhesive layer on the surface of the second rolling portion 211, residual substances on the surface of the second rolling portion 211 can be adhered when the second rolling portion 211 rolls against the first end wall 203, thereby improving the cleaning effect of the battery 200 and reducing the risk of rework.

[0111] According to some embodiments of this application, see Figure 6 , Figure 6 Schematic diagram of the second sub-cleaning mechanism 22 in some embodiments of the present application. The second sub-cleaning mechanism 22 includes a driving portion 220 and a rolling brush portion 221, wherein the driving portion 220 is connected to the rolling brush portion 221 and is used to drive the rolling brush portion 221 to move around the peripheral wall, and the rolling brush portion 221 is used to brush away residual substances on the second side wall 202 and the edges of the peripheral wall.

[0112] The rolling brush portion 221 is a component for contacting the surface of the battery 200 to clean and remove residual substances. In some embodiments, the rolling brush portion 221 may include a brush or a component with an adhesive structure on the surface.

[0113] The driving part 220 is a component that drives the rolling brush part 221 to move around the peripheral wall of the battery 200. For example, the rotation axis of the rolling brush part 221 is colinear with the central axis of the battery 200, and can contact the second side wall 202 and the edge of the peripheral wall as the driving part 220 works. The edge of the peripheral wall can be understood as the junction of the first side wall 201 and the second side wall 202.

[0114] In the above scheme, by setting the driving part 220 and the rolling brush part 221, the rolling brush part 221 can move along the circumference of the battery 200, so that the second side wall 202 and the edges and corners of the surrounding wall can be cleaned by rolling brushes, thereby improving the cleanliness of the surrounding wall surface, reducing the risk of rework, and improving the manufacturing efficiency of the battery 200.

[0115] According to some embodiments of the present application, the roller brush portion 221 includes a brush.

[0116] The brush filaments can be made of animal hair or artificial hair (such as plastic). The brush can include brush filaments and a brush handle, and the brush filaments are nailed into the brush handle. The driving unit 220 can be connected to the brush handle, and the driving unit 220 can make the brush filaments contact with the surface of the battery 200, so as to clean the battery 200.

[0117] In some embodiments, the toughness of the brush filaments is utilized to wrap and accommodate the second side wall 202, edges or corners of the battery 200. Under the action of the rotational force, the protective parts at the edges and corners that cannot be handled by dry ice cleaning can be effectively cleaned and removed.

[0118] In the above scheme, by rolling and wiping the edges and corners of the second side wall 202 and the surrounding wall with a brush, residual substances on the edges and corners of the second side wall 202 and the surrounding wall can be effectively removed, thereby improving the cleanliness of the surface of the battery 200, reducing the risk of rework, and improving the manufacturing efficiency of the battery 200.

[0119] According to some embodiments of this application, see Figure 6 There are two roller brush portions 221 , and the two roller brush portions 221 are symmetrically arranged around an axis of the roller brush portion 221 . The driving portion 220 drives the two roller brush portions 221 to rotate simultaneously.

[0120] The rolling brush portion 221 rotates around its circumferential axis and can move around the circumferential wall. In some embodiments, the circumferential axis of the rolling brush portion 221 can be colinear with the central axis of the battery 200.

[0121] The number of the roller brush parts 221 may be one, two or more.

[0122] Exemplarily, there are two roller brush parts 221, and the driving part 220 can drive the two roller brush parts 221 to rotate at the same time to improve the cleaning efficiency of the battery 200. "The two roller brush parts 221 are symmetrically arranged based on the surrounding axis of the roller brush parts 221" can be understood as that the angle between the two roller brush parts 221 relative to the surrounding axis can be 180°, or the two roller brush parts 221 are symmetrically arranged so that the driving part 220 is uniformly stressed and the two roller brush parts 221 can be uniformly stressed on the surface of the battery 200. In some embodiments, the driving part 220 may include a motor, and the output shaft of the motor is provided with a connecting member, and the connecting member connects the two roller brush parts 221, for example, the connecting member connects the brush handle of the brush.

[0123] In the above solution, by providing two rolling brush parts 221 , and the two rolling brush parts 221 are driven to rotate by the same driving part 220 , the surface of the battery 200 can be cleaned efficiently, the cleaning efficiency is improved, and then the manufacturing efficiency of the battery 200 is improved.

[0124] In some other embodiments of the present application, the two roller brush portions 221 may not be symmetrically arranged based on the surrounding axis of the roller brush portion 221. For example, the two roller brush portions 221 are arranged adjacent to each other, and the angle between them relative to the surrounding axis may not be 180°.

[0125] According to some embodiments of this application, see Figure 6 and Figure 7 , Figure 7 2 is a top view of the second support portion 222 in some embodiments of the present application. The second sub-cleaning mechanism 22 also includes a second support portion 222, which is used to support the battery 200. The second support portion 222 is provided with an annular slide groove 2220, and the end of the roller brush portion 221 is slidably disposed in the slide groove 2220.

[0126] The second support portion 222 is a component that can support the battery 200. The second support portion 222 can be a plate-shaped structure, and the second support portion 222 can support the first end wall 203 of the battery 200.

[0127] See also Figure 7 In some embodiments, the second support portion 222 may be a disc-shaped structure, and a slide groove 2220 is provided on the surface of the second support portion 222, and the slide groove 2220 is annular. The slide groove 2220 is slidably matched with the roller brush portion 221, and the extension track of the slide groove 2220 defines the movement track of the roller brush portion 221. In some embodiments, the roller brush portion 221 is a brush, and the end of the brush handle of the brush can be disposed in the slide groove 2220 and slidably matched with the slide groove 2220.

[0128] In some embodiments, a positioning groove may be further provided on the surface of the second support portion 222, the positioning groove being located in the middle of the space defined by the slide groove 2220, and the positioning groove being capable of accommodating the battery 200. The battery 200 is placed in the positioning groove, and the driving portion 220 drives the roller brush portion 221 to move, and the roller brush portion 221 stably rotates around the battery 200 under the constraint of the slide groove 2220 and cleans the surface of the battery 200.

[0129] In the above solution, by providing the second support portion 222 , the battery 200 can be supported on one hand, and the rotation path of the roller brush portion 221 can be constrained on the other hand, so that the roller brush portion 221 can rotate around the battery 200 smoothly.

[0130] According to some embodiments of this application, see Figure 6 The second sub-cleaning mechanism 22 further includes a third supporting portion 223 and a connecting portion (not shown in the figure), the third supporting portion 223 and the second supporting portion 222 are arranged relatively spaced apart along the third direction z, the connecting portion connects the second supporting portion 222 and the third supporting portion 223, the driving portion 220 is arranged on the third supporting portion 223, and the first direction x, the second direction y and the third direction z are perpendicular to each other.

[0131] In some embodiments, along the third direction z, the third support portion 223 may be arranged opposite to the second support portion 222. The third support portion 223 may be a component for supporting the driving portion 220, and the third support portion 223 may be a plate-shaped structure. The driving portion 220 may include a motor, and the main body of the motor is arranged on the surface of the third support portion 223 away from the second support portion 222, and the output shaft of the motor passes through the third support portion 223 and is connected to the rolling brush portion 221 through a connecting member.

[0132] In some embodiments, the third support portion 223 is connected to the second support portion 222 via a connecting portion, and the connecting portion may be a structural member disposed between the third support portion 223 and the second support portion 222 .

[0133] In some embodiments, the third support portion 223 and the second support portion 222 are both disc-shaped structures, and the connecting portion may be a structural member disposed at the edges of the third support portion 223 and the second support portion 222 .

[0134] In the above scheme, by setting the third support part 223 and the connecting part, on the one hand, it can provide support for the driving part 220, and on the other hand, the roller brush can be driven by the driving part 220 to rotate between the third support part 223 and the second support part 222, thereby effectively cleaning the surface of the battery 200, reducing the risk of rework caused by the presence of residual substances on the surface of the battery 200, and making the battery 200 have a higher manufacturing efficiency.

[0135] According to some embodiments of this application, see Figure 2, Figure 8 and Fig. 9 , Figure 8 This is a top view of a partial structure of the first cleaning mechanism 10 in some embodiments of the present application. Fig. 9 1 is a side view of a partial structure of the first cleaning mechanism 10 in some embodiments of the present application. The battery 200 includes a peripheral wall, a first end wall 203 and a second end wall 204, and the peripheral wall is arranged between the first end wall 203 and the second end wall 204. The first cleaning mechanism 10 includes a bearing portion 11 and a dry ice cleaning portion 12, the bearing portion 11 is used to support the second end wall 204 of the battery 200, and the dry ice cleaning portion 12 is used to clean the surface of the peripheral wall and the surface of the first end wall 203.

[0136] In some embodiments, the electrode terminal 205 of the battery 200 may be disposed on the second end wall 204 , and the first cleaning mechanism 10 performs dry ice cleaning on the peripheral wall and the first end of the battery 200 .

[0137] The carrying part 11 is a component that can be supported on the second end wall 204. By supporting the second end wall 204, the peripheral wall of the battery 200 and the second end wall 204 can be exposed to the dry ice cleaning part 12. In some embodiments, the carrying part 11 can be a carrying plate, a carrying fixture, or a carrying box.

[0138] The dry ice cleaning unit 12 is a component capable of spraying dry ice. The dry ice cleaning unit 12 can spray dry ice at a certain speed toward the surface of the battery 200 ; or the dry ice cleaning unit 12 can spray gas carrying dry ice at a certain speed toward the surface of the battery 200 .

[0139] In the above solution, by providing the bearing portion 11 to support the second end wall 204 of the battery 200 , the dry ice cleaning portion 12 can perform dry ice cleaning on the peripheral wall and the first end wall 203 of the battery 200 without affecting the second end wall 204 , thereby improving the cleaning efficiency.

[0140] In some embodiments, the first cleaning mechanism 10 may further include a transport unit 13, which can move the carrier 11 so that the battery 200 on the carrier 11 is displaced relative to the dry ice cleaning unit 12, so that the dry ice cleaning unit 12 cleans different positions on the surface of the battery 200. The transport unit 13 may include a belt transport structure or a roller transport structure, etc.

[0141] According to some embodiments of this application, please combine Figure 2 and Fig.10 , Fig.10 The top view of the carrier 11 in some embodiments of the present application. The battery 200 further includes an electrode terminal 205, which is protruding from the second end wall 204. A recess 110 is provided on the surface of the carrier 11, and the recess 110 is used to accommodate the electrode terminal 205.

[0142] In some embodiments, the second end wall 204 is provided with an electrode terminal 205 . Exemplarily, the second end wall 204 is provided with two electrode terminals 205 , and the polarities of the two electrode terminals 205 are opposite.

[0143] The recessed portion 110 is a portion disposed on the surface of the carrying portion 11 . The recessed portion 110 is recessed toward the interior of the carrying portion 11 . The recessed portion 110 is disposed corresponding to the electrode terminal 205 so that the electrode terminal 205 can be accommodated in the recessed portion 110 . The surface of the second end wall 204 contacts the surface of the carrying portion 11 .

[0144] In the above solution, by providing the recessed portion 110 to accommodate the electrode terminal 205 of the battery 200 , the electrode terminal 205 can be protected, thereby reducing the risk of failure of the electrode terminal 205 due to dry ice cleaning and improving the reliability of the battery 200 .

[0145] According to some embodiments of this application, see Figure 8 and Fig. 9 The dry ice cleaning unit 12 includes a dry ice spray head 120 and a dust extraction unit 121. The dry ice spray head 120 is configured to be connected to the dry ice production unit and is used to spray dry ice toward the battery 200. The dust extraction unit 121 is used to absorb waste debris generated by dry ice cleaning.

[0146] The dry ice spray head 120 may be a component capable of spraying a gas carrying dry ice at a certain speed. In some embodiments, the first cleaning mechanism 10 further includes a dry ice manufacturing unit, which is a component capable of manufacturing dry ice and transporting dry ice to provide to the dry ice spray head 120. The dry ice manufacturing unit may include components such as an ice maker, an electrical cabinet, etc. that realize dry ice manufacturing and transport dry ice to the dry ice spray head 120. In some embodiments, the dry ice manufacturing unit may include a storage tank storing dry ice, and the storage tank is connected to the dry ice spray head 120 via a pipeline. In some embodiments, the dry ice spray head 120 may be flat, and the port of the dry ice spray head 120 may be provided with a plurality of ice outlets along its length. Exemplarily, the dry ice spray head 120 corresponding to the first side wall 201 is flat, and the length direction of the dry ice spray head 120 is parallel to the height direction of the first side wall 201. Three rows of ice outlets are arranged along the width direction of the dry ice spray head 120, and each row of ice outlets includes multiple ice outlets arranged along the length direction of the dry ice spray head 120.

[0147] The dust extraction part 121 is a component that can provide negative pressure to achieve adsorption and collection of waste debris. The dust extraction part 121 can be a dust extraction tube, one end of which has a connection port, which can be connected to a negative pressure mechanism, the negative pressure mechanism generates negative pressure, and the other end of the dust extraction tube has a dust suction port, which provides negative pressure to extract waste debris. The openings at both ends of the dust extraction tube can be oriented perpendicular to each other. For example, the connection port of the dust extraction tube can be set downward, and its dust suction port can be set horizontally. The middle part of the dust extraction tube can be an arc transition, which can reduce the risk of residual waste debris after dust extraction and adsorption.

[0148] The “waste debris” may include splashed blue film, residual glue solid waste, etc. generated after cleaning by the dry ice nozzle 120.

[0149] In some embodiments, the dry ice cleaning unit 12 may be disposed on a platform, and the platform may be moved relative to the carrying unit 11 by a mobile device to clean different parts of the battery 200. In some embodiments, the dry ice spray head 120 may be supported by a support member, and by providing the support member, the dry ice spray head 120 may be stably supported, so that the dry ice spray head 120 may stably spray dry ice onto the surface of the battery 200, so as to efficiently perform dry ice cleaning on the surface of the battery 200.

[0150] In the above solution, by providing the dry ice nozzle 120 and the dust extraction unit 121, the battery 200 can be cleaned with dry ice while the splashed protective parts generated during the cleaning process and the residual substances remaining on the surface of the battery 200 after cleaning can be effectively extracted.

[0151] According to some embodiments of this application, see Figure 8 and Fig. 9 There are multiple dry ice cleaning units 12 , and the multiple dry ice cleaning units 12 correspond to different parts of the battery 200 , respectively, and are used to clean the surfaces of the corresponding batteries 200 .

[0152] In some embodiments, the battery 200 includes two first side walls 201 arranged oppositely along a first direction x, two second side walls 202 arranged oppositely along a second direction y, and a first end wall 203 arranged in a third direction z. The first cleaning mechanism 10 cleans the first end wall 203, the two first side walls 201, and the two second side walls 202, that is, at least five different parts are cleaned. The number of dry ice cleaning parts 12 can be two, three, four, five or more. Exemplarily, in some embodiments of the present application, the number of dry ice cleaning parts 12 is five, and the five dry ice cleaning parts 12 correspond to the two first side walls 201, the two second side walls 202, and the first end wall 203, respectively. For example, the first side wall 201 corresponds to the side of the bearing part 11, and the two dry ice cleaning parts 12 are arranged oppositely along the first direction x to clean the corresponding first side wall 201. The remaining three dry ice cleaning units 12 can be installed in a hoisting manner. For example, one of the dry ice cleaning units 12 is hoisted above the carrying portion 11 to clean the first end wall 203. The remaining two dry ice cleaning units 12 are hoisted and can be lifted and lowered at both ends of the carrying portion 11. When cleaning the second side wall 202, they can be lowered to clean the second side wall 202. For another example, four dry ice cleaning units 12 are distributed around the carrying portion 11 corresponding to the first side wall 201 and the second side wall 202, and the remaining dry ice cleaning unit 12 is installed above the carrying portion 11.

[0153] In the above solution, by providing a plurality of dry ice cleaning units 12, dry ice cleaning can be performed on different parts of the surface of the battery 200 at the same time, thereby improving the efficiency of dry ice cleaning.

[0154] According to some embodiments of the present application, two dry ice spray heads 120 relatively spaced apart are staggered with each other along a first direction x; and / or two dry ice spray heads 120 relatively spaced apart are staggered with each other along a second direction y.

[0155] “Two dry ice spray heads 120 relatively spaced apart along the first direction x are staggered with each other” can be understood as that the two dry ice spray heads 120 relatively spaced apart along the first direction x do not spray dry ice in the same straight line when cleaning the surface of the battery 200 .

[0156] “The two dry ice spray heads 120 relatively spaced apart along the second direction y are staggered with each other” can be understood as that the two dry ice spray heads 120 relatively spaced apart along the second direction y, when cleaning the surface of the battery 200, spray dry ice not in the same straight line.

[0157] In the above solution, the two dry ice spray heads 120 are staggered to reduce the risk of collision between two opposite surfaces of the battery 200 and reduce the impact of dry ice on the battery 200 .

[0158] According to some embodiments of the present application, the present application further provides a manufacturing device, including a coating device and the cleaning device 100 provided above. The coating device is used to coat the protective element on the surface of the battery 200 cleaned by the cleaning device 100.

[0159] The coating device may refer to a device that can coat a protective member, such as a blue film, on the surface of the battery 200 , and the device that can implement the coating process in the current battery 200 production line may be selected.

[0160] In the above scheme, after the protective parts on the surface of the battery 200 can be efficiently removed by the cleaning equipment, the clean battery 200 is re-coated by the coating device, so as to improve the manufacturing efficiency of the battery 200.

[0161] According to some embodiments of this application, see Figure 1-Figure 10 Some embodiments of the present application provide a cleaning device 100. The cleaning device 100 is used to clean and remove the protective parts of the battery 200.

[0162] The battery 200 includes a peripheral wall, a first end wall 203 and a second end wall 204 oppositely disposed. The peripheral wall is disposed around the edge of the first end wall 203 and includes two first side walls 201 oppositely disposed along a first direction x and two second side walls 202 oppositely disposed along a second direction y.

[0163] The cleaning device 100 includes a loading mechanism 30 , a first cleaning mechanism 10 , and a second cleaning mechanism 20 . The loading mechanism 30 transfers the battery 200 to the first cleaning mechanism 10 and the second cleaning mechanism 20 .

[0164] The first cleaning mechanism 10 includes a carrying portion 11 and five dry ice cleaning portions 12. The battery 200 is placed upside down on the carrying portion 11. The carrying portion 11 is provided with a recessed portion 110 to accommodate the electrode terminal 205 of the battery 200, so that the first end wall 203 of the battery 200 is arranged upward. The five dry ice cleaning portions 12 are arranged corresponding to the two opposite first side walls 201, the two opposite second side walls 202 and the first end wall 203 of the battery 200. The dry ice cleaning portion 12 includes a dry ice spray head 120 and a dust extraction portion 121. The dry ice spray head 120 is used to spray dry ice to the battery 200. The dust extraction portion 121 is used to absorb the waste generated by dry ice cleaning.

[0165] After the peripheral wall and the second end wall 204 of the battery 200 are cleaned by dry ice, they are transferred to the second cleaning mechanism 20 by the loading mechanism 30. The second cleaning mechanism 20 may include a first sub-cleaning mechanism 21 and a second sub-cleaning mechanism 22.

[0166] The first sub-cleaning mechanism 21 includes a first rolling portion 210 and a second rolling portion 211. The number of the first rolling portions 210 is two. The two first rolling portions 210 are arranged opposite to each other along the first direction x, and are used to clean the first side wall 201 respectively. The second rolling portion 211 is located between the two first rolling portions 210, and is used to clean the first end wall 203. In some embodiments, the first rolling portion 210 includes a plurality of first sub-rolling portions 2100, each of which is in rolling contact with the first side wall 201, and a sticky layer is disposed on the surface of each first sub-rolling portion 2100 to pick up residual substances on the first side wall 201. The second rolling portion 211 includes a plurality of second sub-rolling portions 2110, each of which is in rolling contact with the first end wall 203, and a sticky layer is disposed on the surface of each second sub-rolling portion 2110 to pick up residual substances on the first end wall 203.

[0167] The second sub-cleaning mechanism 22 includes a driving unit 220 and a rolling brush unit 221. The driving unit 220 drives the rolling brush unit 221 to move around the peripheral wall. The rolling brush unit 221 is used to brush away residual substances on the second side wall 202 and the edges of the peripheral wall. In some embodiments, the rolling brush unit 221 can be a brush.

[0168] In the above scheme, after the battery 200 is dry-ice cleaned by the first cleaning mechanism 10 to achieve the preliminary removal of the protective parts, the residual substances on the surface of the battery 200 are cleaned and removed by the second cleaning mechanism 20, which can improve the removal efficiency of the protective parts of the battery 200 and reduce the risk of rework of the battery 200 due to the presence of residual substances on the surface of the battery 200, so that the battery 200 has a higher manufacturing efficiency.

[0169] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cleaning device, characterized in that: include: A feeding mechanism for providing batteries; A first cleaning mechanism is used to perform dry ice cleaning on the surface of the battery to remove the protective element on the surface of the battery; The second cleaning mechanism is arranged downstream of the first cleaning mechanism, and is used to clean the surface of the battery after being cleaned by the first cleaning mechanism to remove residual substances on the surface of the battery.

2. The cleaning device according to claim 1, characterized in that: The battery comprises a peripheral wall and a first end wall, the peripheral wall is arranged around the edge of the first end wall, the peripheral wall comprises two first side walls arranged opposite to each other along a first direction and two second side walls arranged opposite to each other along a second direction, the first direction and the second direction are perpendicular to each other; The second cleaning mechanism includes a first sub-cleaning mechanism and a second sub-cleaning mechanism, the first sub-cleaning mechanism is used to clean the first side wall and the first end wall, and the second sub-cleaning mechanism is used to clean the second side wall.

3. The cleaning device according to claim 2, characterized in that: The first sub-cleaning mechanism includes a first rolling portion and a second rolling portion; the two first rolling portions are arranged relatively spaced apart along the first direction to form a first chamber for accommodating the battery, and each first rolling portion is used for rolling contact with the corresponding first side wall to clean the first side wall; the second rolling portion is arranged between the two first rolling portions, and the second rolling portion is used for rolling contact with the first end wall to clean the first end wall.

4. The cleaning device according to claim 3, characterized in that: The first sub-cleaning mechanism further includes a first supporting portion, and the first rolling portion and the second rolling portion are rotatably disposed on the first supporting portion.

5. The cleaning device according to claim 4, characterized in that: The first supporting portion includes a first connecting member, a second connecting member and a third connecting member; Along the first direction, two first connecting members are arranged relatively spaced apart, and the second connecting member is located between the two first connecting members and connects the two first connecting members; Along the first direction, the two third connecting members are arranged relatively at intervals, and along the third direction, the third connecting member and the first connecting member are arranged relatively at intervals, and the first direction, the second direction and the third direction are perpendicular to each other in pairs; Each of the first rolling parts is rotatably disposed between the corresponding first connecting member and the corresponding third connecting member, and the second rolling part is rotatably disposed between two of the third connecting members.

6. The cleaning device according to claim 3, characterized in that: The first rolling portion includes a plurality of first sub-rolling portions, and the plurality of first sub-rolling portions are arranged at intervals along the second direction; and / or, The second rolling portion includes a plurality of second sub-rolling portions, and the plurality of second rolling portions are arranged at intervals along the second direction.

7. The cleaning device according to claim 3, characterized in that: The surfaces of the first rolling part and the second rolling part are both provided with an adhesive layer for sticking to residual substances on the surface of the battery.

8. The cleaning device according to claim 2, characterized in that: The second sub-cleaning mechanism includes a driving part and a rolling brush part. The driving part is connected to the rolling brush part and is used to drive the rolling brush part to move around the peripheral wall. The rolling brush part is used to brush away residual materials on the second side wall and the edges of the peripheral wall.

9. The cleaning device according to claim 8, characterized in that: The rolling brush portion includes a brush.

10. The cleaning device according to claim 8, characterized in that: The number of the roller brush parts is two, and the two roller brush parts are symmetrically arranged based on the surrounding axis of the roller brush part, and the driving part drives the two roller brush parts to rotate simultaneously.

11. The cleaning device according to claim 8, characterized in that: The second sub-cleaning mechanism further includes a second supporting portion, which is used to support the battery; the second supporting portion is provided with an annular slide groove, and the end of the rolling brush portion is slidably disposed in the slide groove.

12. The cleaning device according to claim 11, characterized in that: The second sub-cleaning mechanism also includes a third supporting portion and a connecting portion, the third supporting portion and the second supporting portion are arranged relatively spaced apart along the third direction, the connecting portion connects the second supporting portion and the third supporting portion, the driving portion is arranged on the third supporting portion, and the first direction, the second direction and the third direction are perpendicular to each other.

13. The cleaning device according to any one of claims 2 to 12, characterized in that: The battery comprises a peripheral wall, a first end wall and a second end wall, wherein the peripheral wall is disposed between the first end wall and the second end wall; The first cleaning mechanism includes a bearing portion and a dry ice cleaning portion, wherein the bearing portion is used to support the second end wall of the battery, and the dry ice cleaning portion is used to clean the surface of the peripheral wall and the surface of the first end wall.

14. The cleaning device according to claim 13, characterized in that: The battery further comprises an electrode terminal, wherein the electrode terminal is protrudingly disposed on the second end wall; A recessed portion is disposed on the surface of the bearing portion, and the recessed portion is used to accommodate the electrode terminal.

15. The cleaning device according to claim 13, characterized in that: The dry ice cleaning unit includes a dry ice spray head and a dust extraction unit. The dry ice spray head is configured to be connected to the dry ice manufacturing unit and is used to spray dry ice toward the battery. The dust extraction unit is used to absorb waste debris generated by dry ice cleaning.

16. The cleaning device according to claim 13, characterized in that: There are multiple dry ice cleaning parts, each of which corresponds to a different part of the battery and is used to clean the surface of the corresponding battery.

17. The cleaning device according to claim 15, characterized in that: Along the first direction, the two dry ice spray heads arranged relatively spaced apart are staggered with each other; and / or, Along the second direction, the two dry ice spray heads that are relatively spaced apart are staggered with each other.

18. A battery manufacturing device, characterized in that: include: The cleaning device according to any one of claims 1 to 17; as well as A coating device is used to coat a protective element on the surface of the battery after being cleaned by the cleaning device.

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