Battery electrode terminal cleaning equipment and battery production line

Abstract

The invention relates to battery electrode terminal cleaning equipment and a battery production line. The battery electrode terminal cleaning equipment comprises a rack (1) and a cleaning device (2), the cleaning device (2) comprises a bearing part (21) mounted on the rack (1) and a wiping part (22) mounted on the bearing part (21), and the bearing part (21) is configured to move relative to the rack (1) so as to drive the wiping part (22) to wipe an electrode terminal (31) of a battery; the problem that in the prior art, the quality of the electrode terminal of the manual cleaning battery is difficult to guarantee is solved.

Description

Technical Field

[0001] The present invention relates to the field of battery production equipment, and in particular to a battery electrode terminal cleaning device and a battery production line. Background Art

[0002] The electrode terminals of the battery need to be cleaned before laser welding (BSB), usually by manual cleaning. However, manual cleaning is difficult to ensure stable cleaning quality and has high labor intensity. Summary of the invention

[0003] The present invention aims to provide a battery electrode terminal cleaning device and a battery production line to improve the problem in the related art that the quality of the battery electrode terminals manually cleaned is difficult to ensure.

[0004] According to one aspect of an embodiment of the present invention, the present invention provides a battery electrode terminal cleaning device, the battery electrode terminal cleaning device comprising:

[0005] Racks; and

[0006] The cleaning device comprises a bearing component mounted on a frame and a wiping piece mounted on the bearing component, wherein the bearing component is configured to be movable relative to the frame to drive the wiping piece to wipe the electrode terminals of the battery.

[0007] In some embodiments, the carrying component is configured to be movable and / or rotatable relative to the frame to drive the wiping member to wipe the electrode terminal.

[0008] In some embodiments, the load bearing member comprises:

[0009] A base, mounted on the frame;

[0010] A reel is rotatably mounted on the base;

[0011] A release wheel is rotatably mounted on the base, and the axis of the release wheel is parallel to the axis of the reel-in wheel;

[0012] The wiping member comprises a belt-shaped component, one end of which is wound around the winding wheel, and the other end of which is wound around the releasing wheel.

[0013] In some embodiments, the cleaning device further includes a pressing mechanism mounted on the base and configured to push the belt-shaped member toward the electrode terminal.

[0014] In some embodiments, the cleaning device includes two pressing mechanisms configured to push the strip-shaped member toward two electrode terminals of the battery, respectively.

[0015] In some embodiments, the distance between the two pushing components is adjustable to accommodate different distances between the two electrode terminals.

[0016] In some embodiments, the cleaning device further includes a first adjusting mechanism for driving the pressing mechanism to move relative to the base to adjust the distance between the two pushing components.

[0017] In some embodiments, the pressing mechanism comprises:

[0018] a pressing member configured to push the wiping member toward the electrode terminal;

[0019] A pressing member guide member configured to guide the pressing member to move toward the electrode terminal;

[0020] The elastic member is configured to push the pressing member toward the wiper.

[0021] In some embodiments,

[0022] An end of the pressing component close to the wiping piece is provided with a cleaning liquid outlet for outputting cleaning liquid to the wiping piece; and / or

[0023] The pressing component or the pressing component guide component is provided with a liquid storage cavity for accommodating the cleaning liquid output to the wiping member.

[0024] In some embodiments, the cleaning device also includes two guide wheels arranged in parallel and at intervals, and the wiping element extends from the winding wheel around the two guide wheels to the releasing wheel, and the axis of the guide wheel is parallel to the surface to be cleaned of the electrode terminal to guide the wiping element to contact the surface to be cleaned.

[0025] In some embodiments,

[0026] The base is configured to be movable relative to the frame to drive the wiping member to wipe the electrode terminal; and / or

[0027] The cleaning device further comprises a first driving component, which is configured to drive the take-up wheel to rotate so as to wind the belt-shaped component wound around the release wheel onto the take-up wheel.

[0028] In some embodiments, the rack includes a carrying platform for placing batteries, the carrying platform extends along a first direction to place a plurality of batteries arranged side by side along the first direction, and the cleaning device is configured to be movable along the first direction relative to the rack to wipe the electrode terminals and / or clean the electrode terminals of the plurality of batteries in sequence.

[0029] In some embodiments, the spacing between the cleaning device and the battery-carrying platform of the rack is adjustable to accommodate batteries of different sizes.

[0030] In some embodiments, it also includes a moving part configured to move relative to the frame, a cleaning device is installed on the moving part to move with the moving part to wipe the electrode terminals, and the cleaning device is configured to be movable relative to the moving part to adjust the distance between the cleaning device and the carrying platform.

[0031] In some embodiments, the battery electrode terminal cleaning device further comprises a cleaning liquid supply device for providing cleaning liquid to the wiping member, and the cleaning liquid supply device comprises a cleaning liquid outlet for outputting the cleaning liquid to the wiping member.

[0032] In some embodiments,

[0033] The winding wheel comprises a first winding wheel and a second winding wheel, wherein the axis of the first winding wheel is parallel to the axis of the second winding wheel;

[0034] The release wheel comprises a first release wheel and a second release wheel, wherein the axis of the first release wheel is parallel to the axis of the second release wheel;

[0035] The wiping member comprises a first wiping member and a second wiping member, wherein one end of the first wiping member is wound around the first take-up wheel and the other end is wound around the first release wheel, and one end of the second wiping member is wound around the second take-up wheel and the other end is wound around the second release wheel;

[0036] The first wiping member and the second wiping member are configured to wipe two electrode terminals of the battery, respectively.

[0037] In some embodiments, the cleaning device further comprises:

[0038] a first pressing wheel configured to press the first wiping member toward one electrode terminal of the battery;

[0039] The second pressing wheel is configured to press the second wiping member toward the other electrode terminal of the battery.

[0040] In some embodiments, the cleaning device further comprises:

[0041] a connecting shaft configured to rotatably mount the first pressing wheel and the second pressing wheel thereon;

[0042] The connecting shaft guide component is connected to the base and is configured to guide the connecting shaft to move toward the electrode terminal.

[0043] In some embodiments, the cleaning liquid supply device includes:

[0044] A cleaning liquid storage chamber is provided in the connecting shaft guide component and is communicated with the cleaning liquid outlet;

[0045] The cleaning liquid output component is communicated with the cleaning liquid storage chamber and is configured to start and stop outputting the cleaning liquid to the wiping member and / or to output an amount of the cleaning liquid.

[0046] According to another aspect of the present application, a battery production line is also provided, the battery production line comprising the above-mentioned battery electrode terminal cleaning device

[0047] Applying the technical solution of the present application and using mechanized equipment to clean the electrode terminals of the battery cells is beneficial to ensuring the cleaning quality, stability and consistency of the cleanliness, and is further beneficial to avoiding quality problems such as welding blowouts or cold welds due to dirt on the electrode terminals or poor contact between the conductive connectors when welding the electrode terminals. Therefore, the battery electrode terminal cleaning equipment of this embodiment is beneficial to improving and ensuring the welding quality of the electrode terminals and the conductive connectors.

[0048] Further features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0050] Figure 1 A schematic diagram of a structure of an electric device using a battery as a power source according to one or more embodiments;

[0051] Figure 2 An exploded view of a battery pack of an electric device according to one or more embodiments;

[0052] Figure 3 A schematic diagram of an exploded structure of a battery cell of a battery pack of an electric device according to one or more embodiments; and

[0053] Figure 4 A schematic diagram of a three-dimensional structure of a battery electrode terminal cleaning device according to one or more embodiments;

[0054] Figure 5 A schematic diagram of a three-dimensional structure of a cleaning device and a battery of a battery electrode terminal cleaning device according to one or more embodiments;

[0055] Figure 6 A schematic structural diagram of a cleaning device and a battery of a battery electrode terminal cleaning device according to one or more embodiments;

[0056] Figure 7 A schematic structural diagram of a cleaning device and a battery of a battery electrode terminal cleaning device according to one or more embodiments;

[0057] Figure 8 A schematic diagram of a three-dimensional structure of a battery electrode terminal cleaning device according to one or more embodiments;

[0058] Fig. 9 A schematic diagram of a partial structure of a battery electrode terminal cleaning device according to one or more embodiments. DETAILED DESCRIPTION

[0059] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0060] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein 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 figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0061] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0062] Reference to "embodiments" herein 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 herein may be combined with other embodiments.

[0063] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0064] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0065] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0066] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0067] At present, from the perspective of market development, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0068] Figure 1 FIG. 1 shows a schematic diagram of a structure of an electric device using a battery as a power source; Figure 1 As shown, the power-consuming device of this embodiment includes a vehicle 1000, which may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. A battery pack 100 is disposed inside the vehicle 1000, and the battery pack 100 may be disposed at the bottom, head, or tail of the vehicle 1000. The battery pack 100 may be used to power the vehicle 1000, for example, the battery pack 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery pack 100 to power the motor 300, for example, for the starting, navigation, and working power requirements of the vehicle 1000 during driving.

[0069] The electrical devices may be mobile phones, portable devices, laptop computers, battery vehicles, electric cars, ships, spacecraft, electric toys and electric tools, etc. For example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc. Electric toys include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys and electric airplane toys, etc. Electric tools include metal cutting electric tools, grinding electric tools, assembly electric tools and railway electric tools, such as electric drills, electric grinders, electric wrenches, electric screwdrivers, electric hammers, impact drills, concrete vibrators and electric planers.

[0070] In some embodiments of the present application, the battery pack 100 can not only serve as the operating power source of the vehicle 1000, but also serve as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0071] Please refer to Figure 2 , Figure 2 An exploded view of a battery pack 100 provided for some embodiments of the present application. The battery pack 100 includes a box body 110 and a battery module disposed in the box body 110, wherein the battery module includes a plurality of battery cells 3, and the battery cells 3 are contained in the box body 110. Among them, the box body 110 is used to provide a storage space for the battery cells 3, and the box body 110 can adopt a variety of structures. In some embodiments, the box body 110 may include a first part 111 and a second part 112, the first part 111 and the second part 112 cover each other, and the first part 111 and the second part 112 jointly define a storage space for accommodating the battery cells 3. The second part 112 may be a hollow structure with one end open, the first part 111 may be a plate-like structure, and the first part 111 covers the open side of the second part 112, so that the first part 111 and the second part 112 jointly define a storage space; the first part 111 and the second part 112 may also be hollow structures with one side open, and the open side of the first part 111 covers the open side of the second part 112. Of course, the box body 110 formed by the first part 111 and the second part 112 can be in various shapes, such as a cylinder, a cuboid, etc.

[0072] In the battery pack 100, there can be multiple battery cells 3, and the electrode terminal conductive connectors of two battery cells 3 are connected to realize the series connection or parallel connection of the two battery cells 3. Multiple battery cells 3 can be connected in series, in parallel, or in mixed connection. Mixed connection means that multiple battery cells 3 are both connected in series and in parallel. Multiple battery cells 3 can be directly connected in series, in parallel, or in mixed connection, and then the whole formed by the multiple battery cells 3 is accommodated in the box 110; of course, the battery pack 100 can also be a battery module formed by connecting multiple battery cells 3 in series, in parallel, or in mixed connection, and then the multiple battery modules are connected in series, in parallel, or in mixed connection to form a whole, and accommodated in the box 110. The battery pack 100 may also include other structures. For example, the battery pack 100 may also include a busbar component for realizing electrical connection between multiple battery cells 3.

[0073] Each battery cell 3 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery or a magnesium-ion battery, but is not limited thereto. The battery cell 3 may be cylindrical, flat, rectangular or in other shapes.

[0074] Please refer to Figure 3 , Figure 3 The schematic diagram of the decomposed structure of the battery cell 3 provided in some embodiments of the present application. The battery cell 3 refers to the smallest unit constituting the battery pack 100. Figure 3 The battery cell 3 includes an end cover 32, a shell 35, a battery cell assembly 34 and other functional components.

[0075] The end cap 32 refers to a component that covers the opening of the shell 35 to isolate the internal environment of the battery cell 3 from the external environment. Without limitation, the shape of the end cap 32 can be adapted to the shape of the shell 35 to match the shell 35. Optionally, the end cap 32 can be made of a material with a certain hardness and strength, such as an aluminum alloy, so that the end cap 32 is not easily deformed when squeezed and collided, so that the battery cell 3 can have a higher structural strength and the safety performance can also be improved. Functional components such as electrode terminals 31 can be provided on the end cap 32. The electrode terminal 31 can be used to electrically connect to the battery cell assembly 34 for outputting or inputting electrical energy of the battery cell 3. In some embodiments, the end cap 32 can also be provided with a pressure relief mechanism for releasing the internal pressure when the internal pressure or temperature of the battery cell 3 reaches a threshold. The material of the end cap 21 can also be a variety of materials, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this. In some embodiments, an insulating member may be provided inside the end cap 32, and the insulating member may be used to isolate the electrical connection components in the housing 35 from the end cap 32 to reduce the risk of short circuit. For example, the insulating member may be plastic, rubber, or the like.

[0076] The shell 35 is a component used to cooperate with the end cover 32 to form the internal environment of the battery cell 3, wherein the formed internal environment can be used to accommodate the battery cell assembly 34, electrolyte and other components. The shell 35 and the end cover 32 can be independent components, and an opening can be set on the shell 35, and the internal environment of the battery cell 3 is formed by covering the opening with the end cover 32 at the opening. Without limitation, the end cover 32 and the shell 35 can also be integrated. Specifically, the end cover 32 and the shell 35 can form a common connection surface before other components are put into the shell, and when the interior of the shell 35 needs to be encapsulated, the end cover 32 covers the shell 35. The shell 35 can be of various shapes and sizes, such as a rectangular parallelepiped, a cylindrical shape, a hexagonal prism, etc. Specifically, the shape of the shell 35 can be determined according to the specific shape and size of the battery cell assembly 34. The material of the shell 35 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and the embodiment of the present application does not impose any special restrictions on this.

[0077] The cell assembly 34 is a component where electrochemical reactions occur in the battery cell 100. The housing 35 may contain one or more cell assemblies 34. The cell assembly 34 is mainly formed by winding or stacking pole sheets, wherein the pole sheets include a positive pole sheet and a negative pole sheet, and a separator is usually provided between the positive pole sheet and the negative pole sheet.

[0078] The electrode sheet mainly includes a thin sheet-shaped current collector and an active material coated on the current collector. The parts of the positive and negative electrodes with active materials constitute the main body of the battery cell assembly, and the parts of the positive and negative electrodes without active materials each constitute a tab 33. The positive tab and the negative tab can be located at one end of the main body or at both ends of the main body respectively. During the charge and discharge process of the battery pack 100, the positive active material and the negative active material react with the electrolyte, and the tab 33 connects the electrode terminal 31 to form a current loop.

[0079] During the battery production process, the electrode terminals of multiple battery cells need to be connected through conductive connectors to connect two battery cells in series or in parallel. The electrode terminals of the battery cells are usually connected to the conductive connectors by welding. Before welding the electrode terminals to the conductive connectors, the electrode terminals of the battery cells need to be cleaned to improve the welding quality. Currently, manual cleaning of electrode terminals is usually performed manually, but manual cleaning of electrode terminals is prone to poor consistency of cleaning and poor cleaning effect, which leads to problems such as burst holes and loose welding during the welding of electrode terminals and conductive connectors.

[0080] In order to improve the problem of poor effect and poor consistency in manual cleaning of electrode terminals, this embodiment provides a battery electrode terminal cleaning device.

[0081] like Figures 4 to 7As shown, the battery electrode terminal cleaning equipment of this embodiment includes a frame 1 and a cleaning device 2, the frame 1 includes a carrying platform 11 for carrying a battery cell 3 whose electrode terminals need to be cleaned; the cleaning device 2 includes a carrying component 21 installed on the frame 1 and a wiping member 22 installed on the carrying component 21, and the carrying component 21 is configured to be movable relative to the carrying platform 11 to drive the wiping member 22 to wipe the electrode terminal 31 of the battery cell 3.

[0082] In the present embodiment, the carrying component 21 carrying the wiping piece 22 drives the wiping piece 22 to move to wipe the electrode terminal 31 of the battery 3, and the electrode terminal 31 of the battery cell 3 is cleaned by mechanized equipment, which is beneficial to ensuring the cleaning quality, stability and consistency of the cleanliness, and further helps to avoid quality problems such as welding blowouts or cold welds due to dirt on the electrode terminal 31 and the conductive connector or poor contact between the two when welding the electrode terminal 31 and the conductive connector. Therefore, the battery electrode terminal cleaning equipment of the present embodiment is beneficial to improving and ensuring the welding quality of the electrode terminal 31 and the conductive connector.

[0083] In some embodiments, wipe 22 comprises a nonwoven fabric.

[0084] In some embodiments, the bearing member 21 is configured to be movably arranged relative to the frame 1 to drive the wiping member 22 to wipe the electrode terminal 31. Further, the bearing member 21 moves relative to the frame 1, and the wiping member 22 can also be moved to another electrode terminal to be wiped. In this embodiment, the same motion mechanism can realize the function of wiping and replacing the electrode terminal 31 to be wiped, which is conducive to simplifying the structure of the device and improving the practicality of the device.

[0085] In other embodiments, the bearing member 21 is configured to be rotatable relative to the frame 1, and the bearing member 21 rotates to drive the wiping member 22 to wipe the electrode terminal 31, and can also update the wiping member 22 in the contact position with the electrode terminal 31. The bearing member 21 can be rotated relative to the frame 1 to realize the wiping function of the electrode terminal 31, and can also realize the update of the wiping member 22 in the wiping position. The same motion mechanism can realize the functions of wiping and updating the wiping member 22, which is conducive to simplifying the structure of the device and improving the practicality of the device.

[0086] See also Figure 4 The bearing component 21 includes a base 211, a reel 212 and a release wheel 213. The base 211 is mounted on the frame 1. The reel 212 is rotatably mounted on the base 211; the release wheel 213 is rotatably mounted on the base 211, and the axis of the release wheel 213 is parallel to the axis of the reel 212. The wiping member 22 includes a belt-shaped component, one end of which is wound around the reel 212, and the other end is wound around the release wheel 213.

[0087] In this embodiment, the base 211 is configured to be movable relative to the carrying platform 11 to drive the wiping member 22 to wipe the electrode terminal 31 .

[0088] The carrying platform 11 extends along a first direction to accommodate a plurality of battery cells 3 arranged side by side along the first direction, and the two ends of the battery cells 3 along a second direction perpendicular to the first direction are respectively provided with electrode terminals 31. The axes of the winding wheel 212 and the releasing wheel 213 are parallel to the first direction. In some embodiments, the winding wheel 212 and the releasing wheel 213 are arranged side by side along the second direction.

[0089] The reeling wheel 212 and the releasing wheel 213 are both spaced apart from the carrying platform 11. The cleaning device 2 further comprises a guide wheel 28 for guiding the wiping member 22 to a position flush with the electrode terminal 31 of the battery cell 3.

[0090] A guide wheel 28 is respectively disposed at both ends of the battery cell 3 along the second direction. The wiping member 22 located between the two guide wheels 28 at both ends of the battery cell 3 along the second direction wipes the electrode terminals 31 at both ends of the battery cell 3 simultaneously.

[0091] The cleaning device 2 further includes two guide wheels 28 arranged in parallel and at intervals, and the wiping member 28 extends from the reeling wheel 212 around the two guide wheels 28 to the releasing wheel 213, and the axis of the guide wheel 28 is parallel to the surface to be cleaned of the electrode terminal 31 to guide the wiping member 22 to contact with the surface to be cleaned. This is conducive to achieving surface contact between the wiping member 22 and the surface to be cleaned of the electrode terminal to ensure the cleaning quality.

[0092] The wiping member 22 between the two guide wheels 28 wipes the two electrode terminals 31 respectively located at the two ends of the battery. The wiping member 22 can wipe the two electrode terminals 31 of the battery cell 3 at the same time, which is beneficial to improve the cleaning efficiency.

[0093] In the present embodiment, the base 211 is configured to be movable along a first direction relative to the frame 1 to wipe the electrode terminal 31, and after wiping the electrode terminal 31 of one battery cell 3, it moves along the first direction to wipe the electrode terminal 31 of another battery cell 3. After wiping the electrode terminal 31 of one or more battery cells 3, the take-up wheel 212 rotates to rotate a new wiping member 22 to a wiping position corresponding to the electrode terminal of the battery cell 3.

[0094] In other embodiments, the reel 212 rotates to drive the wiping member 22 to wipe the electrode terminals 31 of the battery cell 3. After wiping the electrode terminals 31 of one battery cell 3, the base 211 moves along the first direction to move the cleaning device 2 to another battery cell 3.

[0095] In this embodiment, the cleaning device 2 also includes a pressing mechanism 23 installed on the base 211 and configured to push the strip-like component toward the electrode terminal 31. The pressing mechanism 23 presses the wiping member 22 onto the electrode terminal 31 to be cleaned, which is beneficial to ensure effective contact between the wiping member 22 and the electrode terminal 31, and further helps to ensure the cleaning quality of the electrode terminal 31 by the wiping member 22.

[0096] In some embodiments, the cleaning device 2 includes two pressing mechanisms 23, and the two pressing mechanisms 23 are configured to push the strip-shaped member toward the electrode terminals 31 at both ends of the battery. The two pressing mechanisms 23 are located between the two guide wheels 28, and the two pressing mechanisms 23 push the wiping member 22 located between the two guide wheels 28 toward the two electrode terminals 31 of the battery cell 3, respectively, so that the cleaning device 2 can clean the two electrode terminals 31 on one battery cell 3 at the same time, so as to improve the cleaning efficiency of the electrode terminals 31.

[0097] In some embodiments, the distance between the two pushing members 23 is adjustable so that the cleaning device 2 can be applied to battery cells 3 with different electrode terminal distances.

[0098] In some embodiments, the cleaning device 2 further comprises a first adjusting mechanism 24 for driving the pressing mechanism 23 to move relative to the base 211 to adjust the distance between the two pushing members 23. In some embodiments, the first adjusting mechanism 24 is provided in a one-to-one correspondence with the pressing mechanism 23, so that the cleaning device 2 can be applied to battery cells 3 with different electrode terminals 31.

[0099] See also Figure 6 The first adjusting mechanism 24 includes a first lead screw 241 connected to the pressing mechanism 23 and a screw sleeve 242 threadedly matched with the first lead screw 241 and installed on the base 211. During the rotation of the first lead screw 241, the first lead screw 241 drives the pressing mechanism 23 to move relative to the base 211 to adjust the position of the pressing mechanism 23.

[0100] In some embodiments, the first adjustment mechanism 24 further includes a first rotating handle 243 connected to the first screw 241 , and the operator can rotate the first screw 241 through the first rotating handle 243 to drive the pressing mechanism 23 to adjust the position.

[0101] See also Figure 5In some embodiments, the pressing mechanism 23 includes a pressing component 231. In some embodiments, the pressing mechanism further includes a pressing component guide component 232, which is configured to guide the pressing component 231 to move toward the electrode terminal 31. The pressing component guide component 232 can effectively prevent the pressing component from deviating from the electrode terminal 31, thereby effectively ensuring that the wiping member 22 is in full contact with the electrode terminal, thereby ensuring the wiping quality. The pressing component 231 is used to press the wiping member 22 on the electrode terminal 31 to complete the wiping cleaning. Optionally, the pressing component 231 presses the wiping member 22 dipped in cleaning liquid on the electrode terminal 31 to improve the cleaning effect.

[0102] The pressing mechanism further includes an elastic component 233, which is configured to push the pressing component 231 toward the wiping member 22 to ensure effective contact between the wiping member 22 and the electrode terminal 31, thereby ensuring effective contact between the electrode terminal 31 and the wiping component 22, thereby ensuring wiping quality. The elastic component 233 pushes the pressing component 231 toward the electrode terminal 31 through elastic force, which is helpful to prevent the problem of excessive pressure causing damage to the electrode terminal 31.

[0103] The cleaning device 2 further comprises a first driving component 27 drivingly connected to the reel 212, the first driving component 27. In some embodiments, the first driving component 27 comprises a motor. Optionally, the motor comprises one of a stepping motor and a servo motor.

[0104] The battery electrode terminal cleaning device further comprises a wire box 8 for accommodating a signal cable and / or a power cable connected to the first driving component 27, wherein the wire box 8 extends along a first direction and is bendable. In some embodiments, the wire box 8 comprises a drag chain wire box.

[0105] like Figure 4 As shown, the distance between the cleaning device 2 and the battery-carrying platform 11 of the rack 1 is adjustable, which is conducive to changing the position of the cleaning device 2 according to battery cells 3 of different sizes and improving the applicability of the battery electrode terminal cleaning device.

[0106] The battery electrode terminal cleaning equipment also includes a moving part 5 configured to move relative to the frame 1, and the cleaning device 2 is installed on the moving part 5 to move with the moving part 5 to wipe the electrode terminal 31. The cleaning device 2 is configured to be movable relative to the moving part 5 to adjust the distance between the cleaning device 2 and the supporting platform 11.

[0107] The battery motor terminal cleaning device also includes a second adjustment mechanism 9 configured to drive the cleaning device 2 to move relative to the moving part 5 to adjust the distance between the cleaning device 2 and the motor terminal 31. In some embodiments, the second adjustment structure 9 includes a second lead screw 91 rotatably mounted on the moving part 5, and a slider 92 threadedly engaged with the second lead screw 91 and connected to the base 211 of the cleaning device 2. During the rotation of the second lead screw 91, the slider 92 is driven to drive the base 211 to move, thereby adjusting the distance between the cleaning device 2 and the carrying platform.

[0108] The moving part 5 is configured to move along the first direction mentioned above. The battery electrode terminal cleaning device also includes a guide rail 6 for guiding the moving part 5 to move relative to the frame 1. Two guide rails 6 are installed side by side on the frame 1, and both ends of the moving part 5 are movably installed on the two guide rails 6 respectively to improve the stability of the moving process of the moving part 5.

[0109] The battery electrode terminal cleaning device further comprises a second driving component for driving the moving component 5 to move relative to the frame 1. In some embodiments, the second driving component comprises a motor. Optionally, the motor comprises one of a stepping motor and a servo motor.

[0110] The battery electrode terminal cleaning device further includes a cleaning liquid supply device 4 for supplying cleaning liquid to the wiping member 22 to improve the cleaning effect on the electrode terminal 31. In some embodiments, the cleaning liquid includes alcohol.

[0111] A cleaning liquid outlet for outputting cleaning liquid to the wiping member is provided at one end of the pressing component 231 close to the wiping member 22. Directly delivering the cleaning liquid to the wiping member below the pressing component 231 can effectively prevent the loss of cleaning liquid and ensure the cleaning effect.

[0112] The pressing component 231 or the pressing component guide component 232 is provided with a liquid storage cavity for accommodating the output of the cleaning liquid to the wiping member, which effectively utilizes the space, is conducive to simplifying the structure of the device and making the structure of the device compact. The liquid storage cavity is used to store the cleaning liquid for use when filling the liquid. The cleaning liquid outlet is connected to the liquid storage cavity.

[0113] The cleaning liquid supply device 4 includes a cleaning liquid valve, and the cleaning liquid includes an inlet 41 for connecting to the liquid storage tank 7, an outlet communicating with the liquid storage chamber, and a control component 42 for controlling the opening and closing of the inlet 41 and the outlet. The cleaning liquid supply device 4 also includes a third driving component 43 for driving the control component 42 to control the opening and closing of the inlet 41 and the outlet. The third driving component 43 includes a motor. The second driving component includes a motor. Optionally, the motor includes one of a stepping motor and a servo motor.

[0114] The inlet 41 is used to connect an external alcohol tank to replenish the alcohol when the alcohol capacity is lower than the requirement. The third driving component 43 is used to drive the opening and closing of the control component 42. When the electrode terminal 31 and the wiping piece are in place, the control component 42 is opened to drip liquid and wet the wiping piece 22. The control component 42 controls the dripping and wetting of the cleaning liquid.

[0115] In some embodiments, the control component 42 includes a control valve for controlling whether the liquid storage chamber is connected to the atmosphere. When the control valve is opened, the liquid storage chamber is connected to the atmosphere, and the cleaning liquid outlet is connected to the liquid storage chamber to output the cleaning liquid to the wiper 22. When the control valve is closed, the cleaning liquid outlet cannot output the cleaning liquid due to the atmospheric pressure.

[0116] In other embodiments, the liquid storage chamber is connected to the cleaning liquid outlet through a cleaning liquid pipeline, and the control component includes a control valve disposed in the cleaning pipeline.

[0117] In this embodiment, during the operation of the cleaning equipment, the cleaning device 2 is driven by the second driving component to move along the guide rail 6 to the position of the electrode terminal 31 to be cleaned, and then the cleaning device 2 is adjusted downward to make the wiping member 22 contact with the electrode terminal 31, and then the cleaning liquid is controlled to drip onto the wiping member 22, and then the cleaning device 2 is moved along the guide rail to wipe the electrode terminal, and then the cleaning device 2 is lifted and moved to the next electrode terminal 31 to be cleaned.

[0118] Figure 8 and 9 The schematic diagram of the structure of another optional embodiment is shown, in which the winding wheel 212 includes a first winding wheel and a second winding wheel, and the axis of the first winding wheel is parallel to the axis of the second winding wheel. The release wheel 213 includes a first release wheel and a second release wheel, and the axis of the first release wheel is parallel to the axis of the second release wheel.

[0119] The wiping member 22 includes a first wiping member and a second wiping member, one end of the first wiping member is wound around the first take-up wheel and the other end is wound around the first release wheel, one end of the second wiping member is wound around the second take-up wheel and the other end is wound around the second release wheel. The first wiping member and the second wiping member are configured to wipe the two electrode terminals 31 of the battery respectively.

[0120] In this embodiment, the first wiping member and the second wiping member wipe the two electrode terminals of a battery cell 3 respectively, and the first wiping member and the second wiping member wipe the electrode terminals by moving along the first direction. In other embodiments, the first wiping member and the second wiping member wipe the electrode terminals by being driven by the first winding wheel and the second winding wheel respectively.

[0121] The cleaning device 2 further includes a first pressing wheel 26 and a second pressing wheel. The first pressing wheel 26 is configured to press the first wiping member toward one electrode terminal 31 of the battery; the second pressing wheel is configured to press the second wiping member toward the other electrode terminal 31 of the battery. This is beneficial to ensure that the wiping member 22 is in effective contact with the electrode terminal 31 to ensure wiping efficiency.

[0122] The cleaning device 2 also includes a connecting shaft 29 and a connecting shaft guide component 25. The connecting shaft 29 is configured to rotatably mount a first pressing wheel 26 and a second pressing wheel thereon; the connecting shaft guide component 25 is connected to the base 211 and is configured to guide the connecting shaft 29 to move toward the electrode terminal 31.

[0123] The cleaning liquid supply device 4 includes a cleaning liquid storage chamber and a cleaning liquid output component 45. The cleaning liquid storage chamber is arranged in the connecting shaft guide component 25 to make full use of the space and make the structure of the device compact. The cleaning liquid output component 45 is connected to the cleaning liquid storage chamber and is configured to start and stop outputting the cleaning liquid to the wiping member 22 and / or output the amount of the cleaning liquid to ensure that the wiping member can be wetted with the cleaning liquid in time, thereby avoiding the waste of the cleaning liquid while ensuring the cleaning quality.

[0124] The cleaning liquid supply device 4 further includes a fourth driving component 44 for controlling the opening and closing of the cleaning liquid output component 45. The fourth driving component 44 includes a motor. Optionally, the motor includes one of a stepping motor and a servo motor.

[0125] During the operation of the cleaning device, the cleaning liquid output component 45 delivers cleaning liquid to the wiping member, and then the wiping member 22 rotates to make the wetted wiping member 22 abut against the electrode terminal 31, and then the cleaning device 2 moves along the first direction to wipe the electrode terminals 31 of the plurality of battery cells 3 arranged side by side along the first direction, and after the wiping of the electrode terminals of the plurality of battery cells is completed, the wiping member 22 is updated and the cleaning device 2 is reset.

[0126] According to another aspect of the present application, a battery production line is also provided, which includes the above-mentioned battery electrode terminal cleaning device.

[0127] The above description is only an exemplary embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery electrode terminal cleaning device, characterized in that: include: Rack (1); as well as A cleaning device (2) comprises a bearing component (21) mounted on the frame (1) and a wiping member (22) mounted on the bearing component (21), wherein the bearing component (21) is configured to be movable relative to the frame (1) so as to drive the wiping member (22) to wipe the electrode terminals (31) of the battery.

2. The battery electrode terminal cleaning device according to claim 1, characterized in that: The bearing component (21) is configured to be movable and / or rotatable relative to the frame (1) so as to drive the wiping member (22) to wipe the electrode terminal (31).

3. The battery electrode terminal cleaning device according to claim 1, characterized in that: The bearing component (21) comprises: A base (211) mounted on the frame (1); A reel (212) rotatably mounted on the base (211); A release wheel (213) is rotatably mounted on the base (211), and the axis of the release wheel (213) is parallel to the axis of the reeling wheel (212); Wherein, the wiping member (22) comprises a belt-shaped component, one end of which is wound around the winding wheel (212), and the other end of which is wound around the releasing wheel (213).

4. The battery electrode terminal cleaning device according to claim 3, characterized in that: The cleaning device (2) further includes a pressing mechanism (23) mounted on the base (211) and configured to push the belt-shaped member toward the electrode terminal (31).

5. The battery electrode terminal cleaning device according to claim 4, characterized in that: The cleaning device (2) includes two pressing mechanisms (23), and the two pressing mechanisms (23) are configured to push the strip-shaped member toward the two electrode terminals (31) of the battery respectively.

6. The battery electrode terminal cleaning device according to claim 5, characterized in that: The distance between the two pushing components (23) is adjustable to accommodate different distances between the two electrode terminals (31).

7. The battery electrode terminal cleaning device according to claim 6, characterized in that: The cleaning device (2) further comprises a first adjusting mechanism (24) for driving the pressing mechanism (23) to move relative to the base (211) so as to adjust the distance between the two pushing components (23).

8. The battery electrode terminal cleaning device according to claim 4, characterized in that: The pressing mechanism (23) comprises: A pressing component (231) configured to push the wiping member (22) toward the electrode terminal (31); A pressing member guide member (232) configured to guide the pressing member (231) to move toward the electrode terminal (31); The elastic component (233) is configured to push the pressing component (231) toward the wiping member (22).

9. The battery electrode terminal cleaning device according to claim 8, characterized in that: An end of the pressing component (231) close to the wiping piece (22) is provided with a cleaning liquid outlet for outputting cleaning liquid to the wiping piece; and / or The pressing component (231) or the pressing component guide component (232) is provided with a liquid storage cavity for accommodating cleaning liquid output to the wiping member.

10. The battery electrode terminal cleaning device according to claim 3, characterized in that: The cleaning device (2) further comprises two guide wheels (28) arranged in parallel and at intervals, the wiping member (28) extends from the reeling wheel (212) around the two guide wheels (28) to the releasing wheel (213), and the axis of the guide wheel (28) is parallel to the surface to be cleaned of the electrode terminal (31) so as to guide the wiping member (22) to contact the surface to be cleaned.

11. The battery electrode terminal cleaning device according to claim 3, characterized in that: The base (211) is configured to be movable relative to the frame (1) so as to drive the wiping member (22) to wipe the electrode terminal (31); and / or The cleaning device further comprises a first driving component (27), wherein the first driving component (27) is configured to drive the winding wheel (212) to rotate so as to wind the belt-shaped component wound by the release wheel (213) onto the winding wheel (212).

12. The battery electrode terminal cleaning device according to claim 1, characterized in that: The frame (1) comprises a carrying platform (11) for accommodating batteries, the carrying platform (11) extending along a first direction to accommodate a plurality of batteries arranged side by side along the first direction, and the cleaning device (2) is configured to be movable along the first direction relative to the frame (1) to wipe the electrode terminals (31) and / or clean the electrode terminals (31) of the plurality of batteries in sequence.

13. The battery electrode terminal cleaning device according to claim 1, characterized in that: The distance between the cleaning device (2) and the carrying platform (11) of the frame (1) that carries the battery is adjustable to accommodate batteries of different sizes.

14. The battery electrode terminal cleaning device according to claim 13, characterized in that: It also includes a moving part (5) configured to move relative to the frame (1), the cleaning device (2) is installed on the moving part (5) to move with the moving part (5) to wipe the electrode terminal (31), and the cleaning device (2) is configured to be movable relative to the moving part (5) to adjust the distance between the cleaning device (2) and the carrying platform (11).

15. The battery electrode terminal cleaning device according to claim 1, characterized in that: It also comprises a cleaning liquid supply device (4) for providing cleaning liquid to the wiping member (22), and the cleaning liquid supply device (4) comprises a cleaning liquid outlet for outputting the cleaning liquid to the wiping member (22).

16. The battery electrode terminal cleaning device according to any one of claims 3 to 15, characterized in that: The winding wheel (212) comprises a first winding wheel and a second winding wheel, wherein the axis of the first winding wheel is parallel to the axis of the second winding wheel; The release wheel (213) comprises a first release wheel and a second release wheel, wherein the axis of the first release wheel is parallel to the axis of the second release wheel; The wiping member (22) comprises a first wiping member and a second wiping member, wherein one end of the first wiping member is wound around the first winding wheel and the other end is wound around the first releasing wheel, and one end of the second wiping member is wound around the second winding wheel and the other end is wound around the second releasing wheel; The first wiping piece and the second wiping piece are configured to wipe the two electrode terminals (31) of the battery respectively.

17. The battery electrode terminal cleaning device according to claim 16, characterized in that: The cleaning device (2) further comprises: a first pressing wheel (26) configured to press the first wiping member toward an electrode terminal (31) of the battery; The second pressing wheel is configured to press the second wiping member toward the other electrode terminal (31) of the battery.

18. The battery electrode terminal cleaning device according to claim 16, characterized in that: The cleaning device (2) further comprises: a connecting shaft (29) configured to rotatably mount the first pressing wheel (26) and the second pressing wheel thereon; A connecting shaft guide component (25) is connected to the base (211) and is configured to guide the connecting shaft (29) to move toward the electrode terminal (31).

19. The battery electrode terminal cleaning device according to claim 18, characterized in that: The cleaning liquid supply device (4) comprises: A cleaning liquid storage chamber is provided in the connecting shaft guide component (25) and is communicated with the cleaning liquid outlet; A cleaning liquid output component (45) is communicated with the cleaning liquid storage chamber and is configured to start and stop outputting the cleaning liquid to the wiping member (22) and / or to output a certain amount of the cleaning liquid.

20. A battery production line, characterized in that: A battery electrode terminal cleaning device comprising the battery electrode terminal cleaning device according to any one of claims 1 to 19.

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