Battery cleaning device and cleaning method

Abstract

A cleaning device according to an embodiment of the present disclosure is a cleaning device for cleaning battery cells, and is configured such that a plurality of battery cells may be mounted thereon at predetermined intervals. The cleaning device includes: a cleaning tray configured to be rotatable about a rotation center at a center thereof; an internal cleaning nozzle provided with respect to the cleaning tray in a direction toward a center of rotation of the cleaning tray; and an outer cleaning nozzle provided in a direction opposite to the inner cleaning nozzle with respect to the cleaning tray.

Description

Technical Field

[0001] The present invention relates to a battery cleaning device and a battery cleaning method.

[0002] This application claims priority to Korean Patent Application No. 10-2022-0182205 filed in Korea on December 22, 2022, the disclosure of which is incorporated herein by reference. Background Art

[0003] Secondary batteries have high applicability depending on product groups and electrical characteristics such as high energy density, and are therefore widely used not only in portable devices but also in electric vehicles (EV) or hybrid electric vehicles (HEV) driven by power supplies. This secondary battery has attracted attention as a new energy source that improves eco-friendliness and energy efficiency because it not only has the major advantage of significantly reducing the use of fossil fuels, but also does not generate byproducts when using energy.

[0004] Currently, widely used secondary batteries include lithium-ion batteries, lithium polymer batteries, nickel-cadmium batteries, nickel-metal hydride batteries, nickel-zinc batteries, etc. The operating voltage of a unit secondary battery cell (i.e., a unit battery cell) is about 2.5V to 4.5V. Therefore, if a higher output voltage is required, a plurality of battery cells can be connected in series to construct a battery pack. In addition, depending on the charge / discharge capacity required for the battery pack, a plurality of battery cells can be connected in parallel to construct a battery pack. Therefore, the number of battery cells included in the battery pack can be set in various ways according to the required output voltage and / or the required charge / discharge capacity.

[0005] In addition, when cleaning the surface of a cylindrical battery cell, the related art has a problem in that only a certain position is repeatedly cleaned or the nozzle position of each facility deviates due to manual adjustment by an operator, so there is a problem that the cleaning quality of each secondary battery is different. Summary of the invention

[0006] Technical issues

[0007] The present disclosure is intended to solve the problems of the related art, and thus the present disclosure aims to ensure uniform cleaning ability on the surface of a cylindrical battery cell.

[0008] On the other hand, the present disclosure aims to eliminate the position deviation of the cleaning nozzles of each facility by standardizing the position of each cleaning nozzle based on the arrangement configuration of the cleaning nozzles according to the rotation of the battery unit and setting it as a fixed parameter.

[0009] On the other hand, the present disclosure is intended to prevent the cleaning nozzle position of each facility from being deviated due to manual adjustment by an operator.

[0010] However, the technical problems to be solved by the present disclosure are not limited to the above problems, and those skilled in the art can clearly understand other problems not mentioned herein from the following description of the present disclosure.

[0011] Technical Solution

[0012] A cleaning device for cleaning battery cells according to an embodiment of the present disclosure for solving the above-mentioned problems includes: a cleaning disk, which is configured to mount a plurality of battery cells at predetermined intervals and can rotate around a central rotation center; and a cleaning nozzle, which is used to clean the battery cells, and includes an internal cleaning nozzle arranged relative to the cleaning disk in a direction toward the rotation center of the cleaning disk and an external cleaning nozzle arranged relative to the cleaning disk in a direction opposite to the internal cleaning nozzle.

[0013] In one aspect of the present disclosure, the cleaning tray may include a plurality of placement docks for mounting the plurality of battery cells.

[0014] In another aspect of the present disclosure, the placement docks may be configured to be spaced apart from each other at a predetermined angle.

[0015] In yet another aspect of the present disclosure, the docking station may be configured to rotate about a rotation center of the cleaning disc.

[0016] In yet another aspect of the present disclosure, the docking station may be configured to rotate about a central rotation center of the docking station.

[0017] Preferably, when M is a natural number greater than or equal to 2, the docking station may be configured to be rotatable by (360 / M)°.

[0018] In one aspect of the present disclosure, the inner cleaning nozzle, the battery unit, and the outer cleaning nozzle may be disposed in a straight line.

[0019] Preferably, the inner cleaning nozzle and the outer cleaning nozzle may be configured to spray the cleaning fluid toward the battery cell.

[0020] In another aspect of the present disclosure, the inner cleaning nozzle and the outer cleaning nozzle may be configured to have N cleaning patterns with predetermined heights and predetermined angles.

[0021] In another aspect of the present disclosure, M and N may be prime to each other.

[0022] In yet another aspect of the present disclosure, the cleaning mode may be set by parameterizing the arrangement height and angle of the cleaning nozzles.

[0023] In yet another aspect of the present disclosure, the cleaning device may include K groups of N cleaning modes.

[0024] In yet another aspect of the present disclosure, the docking station may rotate (360 / M)° while the cleaning tray rotates (360 / (N*K))°.

[0025] Technical Effects

[0026] According to the present disclosure, the surface of the cylindrical battery cell can be uniformly cleaned.

[0027] Furthermore, according to the present disclosure, by standardizing the position of each cleaning nozzle based on the arrangement configuration of the cleaning nozzle according to the rotation of the battery unit and setting it as a fixed parameter, the position deviation of the cleaning nozzle for each facility can be eliminated.

[0028] According to the present disclosure, it is possible to prevent the position of the cleaning nozzle of each facility from being deviated due to manual adjustment by an operator.

[0029] However, the effects obtained by the present disclosure are not limited to the above-mentioned effects, and those skilled in the art may clearly understand other technical effects not mentioned herein from the following description of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings illustrate preferred embodiments of the present disclosure, and together with the above disclosure are used to provide a further understanding of the technical features of the present disclosure, so the present disclosure should not be interpreted as being limited to the accompanying drawings.

[0031] Figure 1 2 is a diagram for describing a cleaning device according to an embodiment of the present disclosure.

[0032] Figure 2 yes Figure 1 An enlarged view of a portion of the cleaning device.

[0033] Figure 3 Is used to describe Figure 1 FIG. 4 is a diagram of an example of a cleaning mode of a cleaning device.

[0034] Figure 4 Is used to describe Figure 1 FIG. 4 is a diagram of an example of a cleaning mode of a cleaning device.

[0035] Figure 5 Is used to describe Figure 1 FIG. 4 is a diagram of an example of a cleaning mode of a cleaning device.

[0036] Figure 6 Is used to describe Figure 1 FIG. 4 is a diagram of an example of a cleaning mode of a cleaning device.

[0037] Figure 7 Is used to describe Figure 1 FIG. 4 is a diagram of an example of a cleaning mode of a cleaning device.

[0038] Figure 8 2 is a diagram for describing an operation process of a cleaning device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0039] Hereinafter, preferred embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Before the description, it should be understood that the terms used in the specification and the appended claims should not be interpreted as limited to the general and dictionary meanings, but should be interpreted based on the meanings and concepts corresponding to the technical aspects of the present disclosure on the basis of the principle that the inventor is allowed to appropriately define the terms for the best interpretation.

[0040] Therefore, the descriptions presented herein are only preferred examples for illustrative purposes, and are not intended to limit the scope of the present disclosure, and it should be appreciated that other equivalents and modifications may be made to the present disclosure without departing from the scope of the present disclosure.

[0041] Figure 1 is a diagram for describing a cleaning device 1 according to an embodiment of the present disclosure, Figure 2 yes Figure 1 An enlarged view of a portion of the cleaning device 1 .

[0042] Reference Figure 1 and Figure 2 The cleaning device 1 includes a cleaning disc 10 and a cleaning nozzle 20. The cleaning device 1 may be a cleaning device 1 for cleaning a battery cell 100. For example, the cleaning device 1 may be a cleaning device 1 for cleaning the outside of a battery cell 100 having a cylindrical shape.

[0043] More specifically, the cleaning tray 10 may be configured to install a plurality of battery cells 100 at predetermined intervals. For example, the cleaning tray 10 may include at least one placement dock 11 for installing a plurality of battery cells 100. Preferably, the cleaning tray 10 may include a plurality of placement docks 11. For example, a plurality of placement docks 11 may be provided along the circumference of the cleaning tray 10. In this case, the placement docks 11 may be spaced apart from each other at predetermined angles. For example, referring to Figure 2 , the placement docks 11 may be arranged to be spaced apart from each other at an angle θ. The cleaning tray 10 may have a shape similar to a circular disk. Therefore, up to (360 / θ) placement docks 11 may be arranged on the cleaning tray 10. As an embodiment of the present disclosure, refer to Figure 1 As an example of the present disclosure, θ can be set to about 8°. Accordingly, 45 placement docks 11 can be provided. However, this only corresponds to one embodiment of the present disclosure, and of course, the number or interval angle of the placement docks 11 of the present disclosure is not limited thereto.

[0044] Reference Figure 1 , the cleaning disc 10 can be configured to rotate about a central rotation center. Figure 2, the cleaning tray 10 can rotate counterclockwise around the central rotation center. Accordingly, the placement dock 11 disposed on the cleaning tray 10 can be configured to rotate around the rotation center of the cleaning tray 10. For example, the cleaning tray 10 can rotate θ and then pause for a moment. For example, referring to Figure 2 After the battery cell 100 mounted on the dock 11 of the cleaning tray 10 is cleaned by the cleaning nozzle 20 set to the cleaning mode A while being stationary, the cleaning tray 10 may rotate clockwise by θ and then pause again. Since the battery cell 100 is also paused when the cleaning tray 10 is paused, the battery cell 100 may be cleaned by the cleaning nozzle 20 set to the cleaning mode B. Then, the battery cell 100 may be cleaned by the cleaning nozzle 20 set to the cleaning modes C, D, and E in sequence. This will be referred to later. Figure 8 Describe the detailed cleaning process in more detail.

[0045] According to the structure of the present disclosure as described above, the cleaning device 1 can clean the battery cells 100 from various angles and directions in various cleaning modes by the cleaning nozzle 20. For example, in the related art, the operator manually handles and sets the length, angle, and position of the pipe for conveying the cleaning liquid S, resulting in position deviations of the cleaning nozzle 20 of each facility, which in turn leads to uneven cleaning ability. However, according to the present disclosure, since cleaning is performed by a preset cleaning mode, there is no need for the operator to manually adjust the cleaning nozzle 20 individually. Therefore, deviations in the position of the cleaning nozzle 20 can be prevented. Accordingly, all battery cells 100 mounted on the cleaning device 1 can be cleaned uniformly. This will be referred to later. Figures 3 to 7 The various cleaning modes are described in detail.

[0046] In another aspect of the present disclosure, the docking station 11 may be configured to be rotatable around a central rotation center of the docking station 11. Accordingly, the battery unit 100 mounted on the docking station 11 may be rotatable around a central axis of the battery unit 100.

[0047] For example, refer to Figure 2 , the dock 11 can rotate counterclockwise. Accordingly, the battery unit 100 mounted on the dock 11 can also rotate counterclockwise. On the other hand, the dock 11 can also rotate clockwise, and the rotation direction of the dock 11 is not particularly limited.

[0048] Refer again Figure 2 , the placement dock 11 can rotate φ while moving from one point to the next point. More specifically, while the cleaning disk 10 rotates θ, the placement dock 11 can rotate φ. In other words, when the battery unit 100 mounted on the placement dock 11 rotates θ around the rotation center of the cleaning disk, the battery unit 100 mounted on the placement dock 11 can rotate φ. That is, the battery unit 100 can rotate while moving along the circumference of the cleaning disk 10.

[0049] The cleaning nozzle 20 can clean the battery cell 100. The cleaning nozzle 20 can spray a cleaning liquid S that can clean the outside of the battery cell 100. The cleaning nozzle 20 may include an internal cleaning nozzle 21 and an external cleaning nozzle 22. Specifically, the cleaning nozzle 20 includes an internal cleaning nozzle 21 that is arranged relative to the cleaning disk 10 in a direction toward the rotation center of the cleaning disk 10 and an external cleaning nozzle 22 that is arranged relative to the cleaning disk 10 in a direction opposite to the internal cleaning nozzle 21. The internal cleaning nozzle 21 and the external cleaning nozzle 22 may be formed in pairs. That is, the internal cleaning nozzle 21 and the external cleaning nozzle 22 may constitute a pair of cleaning nozzles 20.

[0050] In addition, in each cleaning mode, the internal cleaning nozzle 21 and the external cleaning nozzle 22 may be configured to spray the cleaning liquid S toward the battery cell 100. Preferably, the internal cleaning nozzle 21, the battery cell 100, and the external cleaning nozzle 22 may be arranged in a straight line. That is, the internal cleaning nozzle 21 and the external cleaning nozzle 22 may clean both sides of the battery cell 100 at the same time.

[0051] In one aspect of the present disclosure, the internal cleaning nozzle 21 and the external cleaning nozzle 22 may have N cleaning modes with a predetermined height and a predetermined angle. For example, each of the N cleaning modes may be configured such that the height of the cleaning nozzle 20 and / or the angle of the cleaning nozzle 20 are different. The cleaning mode may be set by parameterizing the placement height and angle of the cleaning nozzle 20. According to the N cleaning modes, all areas forming the outside of the battery cell 100 may be cleaned.

[0052] In another aspect of the present disclosure, the paired inner cleaning nozzles 21 and outer cleaning nozzles 22 do not necessarily have to have the same height and / or angle. The paired inner cleaning nozzles 21 and outer cleaning nozzles 22 may have heights and / or angles different from each other.

[0053] According to the above features, since the battery cells 100 are cleaned according to a preset cleaning mode, there is no need for the operator to manually adjust the cleaning nozzle 20 individually. That is, according to the present disclosure, by fixed parameterization of the cleaning nozzle 20, deviations for each facility can be prevented. Accordingly, all battery cells 100 mounted on the cleaning device 1 can be cleaned uniformly. In addition, according to the present disclosure, deviations in the position of the cleaning nozzle 20 of each facility caused by manual adjustment by the operator can be prevented. In addition, according to the above configuration of the present disclosure, the number of cleaning modes can be diversified into N types, so that the battery cells 100 can be cleaned according to angles and heights. Accordingly, it becomes possible to uniformly clean the entire area of ​​the battery cell 100.

[0054] Figures 3 to 7 Is used to describe Figure 1 FIG. 1 is a diagram of an example of a cleaning mode of the cleaning device 1 .

[0055] As an embodiment of the present disclosure, Figures 3 to 7 The specific positions and angles of the cleaning nozzles 20 in the cleaning device 1 including five cleaning modes are shown. Hereinafter, the specific shape of each cleaning nozzle 20 in the embodiment including five cleaning modes will be described.

[0056] first, Figure 3 2 is a diagram for describing the shape of the cleaning nozzle 20 set to the cleaning mode A according to an embodiment of the present disclosure.

[0057] Reference Figure 3 , cleaning mode A can be a top surface vertical spray mode. That is, in Figure 3 In the cleaning mode A, the cleaning nozzle 20 may be configured to spray the cleaning liquid S vertically toward the top surface of the battery cell 100. The sprayed cleaning liquid S may completely cover the top surface of the battery cell 100. Accordingly, according to the cleaning mode A, the entire top surface of the battery cell 100 may be cleaned.

[0058] Next, Figure 4 2 is a diagram for describing the shape of the cleaning nozzle 20 set to the cleaning mode B according to an embodiment of the present disclosure.

[0059] Reference Figure 4 , cleaning mode B may be an upper surface horizontal spray mode. That is, in Figure 4 In the cleaning mode A, the cleaning nozzle 20 may be configured to spray the cleaning liquid S horizontally toward the side surface of the upper portion of the battery cell 100. The sprayed cleaning liquid S may completely cover the side surface of the upper portion of the battery cell 100. Preferably, the cleaning liquid S may even cover the top surface of the battery cell 100. Accordingly, according to the cleaning mode B, the entire side surface of the upper portion of the battery cell 100 may be cleaned.

[0060] Next, Figure 5 2 is a diagram for describing the shape of the cleaning nozzle 20 set to the cleaning mode C according to an embodiment of the present disclosure.

[0061] Reference Figure 5 , the cleaning mode C can be an upper surface oblique spray mode. That is, in Figure 5In the cleaning mode C, the cleaning nozzle 20 can be configured to spray the cleaning liquid S in a diagonal direction toward the side surface of the upper portion of the battery cell 100. More specifically, the cleaning nozzle 20 can spray the cleaning liquid S in a diagonal direction from the upper portion of the battery cell 100 toward the lower portion of the battery cell 100 and the center of the battery cell 100. For example, the angle formed by the axial direction of the battery cell 100 and the spraying direction of the nozzle can be about 20 degrees or more and less than about 90 degrees. However, the above angles are only embodiments, and the diagonal angles of the nozzles disclosed herein are not limited thereto. The sprayed cleaning liquid S can cover the top surface of the battery cell 100 and the side surface of the upper portion of the battery cell 100 at the same time. Accordingly, according to cleaning mode C, both the top surface of the battery cell 100 and the side surface of the upper portion of the battery cell 100 can be cleaned.

[0062] Next, Figure 6 2 is a diagram for describing the shape of the cleaning nozzle 20 set to the cleaning mode D according to an embodiment of the present disclosure.

[0063] Reference Figure 6 , the cleaning mode D can be an oblique spraying mode on the middle side surface. Figure 6 In the cleaning mode D, the cleaning nozzle 20 can be configured to spray the cleaning liquid S in an oblique direction toward the side surface of the middle part of the battery cell 100. More specifically, the cleaning nozzle 20 can spray the cleaning liquid S in an oblique direction from the middle part of the battery cell 100 toward the lower part of the battery cell 100 and the center of the battery cell 100. For example, the angle formed by the axial direction of the battery cell 100 and the spraying direction of the nozzle can be about 20 degrees or more and less than about 90 degrees. However, the above angles are only embodiments, and the oblique angles of the nozzles disclosed herein are not limited thereto. The cleaning liquid S can cover the side surface of the middle part of the battery cell 100. Accordingly, according to cleaning mode D, the entire side surface of the middle part of the battery cell 100 can be cleaned.

[0064] In another aspect of the present disclosure, the nozzle angle of the cleaning mode D and the nozzle angle of the cleaning mode C may be different from each other. By variously setting the nozzle angle for each cleaning mode, the area where the sprayed cleaning liquid S contacts the battery cell 100 and / or the spray intensity of the sprayed cleaning liquid S may be variously set. Accordingly, the cleaning effect may be further improved.

[0065] Next, Figure 7 2 is a diagram for describing the shape of the cleaning nozzle 20 set to the cleaning mode E according to an embodiment of the present disclosure.

[0066] Reference Figure 7 , the cleaning mode E can be a lower surface oblique spray mode. That is, in Figure 7In the cleaning mode E, the cleaning nozzle 20 can be configured to spray the cleaning liquid S in an oblique direction toward the side surface of the lower portion of the battery cell 100. More specifically, the cleaning nozzle 20 can spray the cleaning liquid S in an oblique direction from the lower portion of the battery cell 100 toward the lower portion of the battery cell 100 and the center of the battery cell 100. For example, the angle formed by the axial direction of the battery cell 100 and the spraying direction of the nozzle can be about 20 degrees or more and less than about 90 degrees. However, the above angles are only embodiments, and the oblique angles of the nozzles disclosed herein are not limited thereto. The cleaning liquid S can cover the side surface of the lower portion of the battery cell 100. Accordingly, according to cleaning mode E, the entire side surface of the lower portion of the battery cell 100 can be cleaned.

[0067] In another aspect of the present disclosure, the nozzle angle of cleaning mode E may be different from the nozzle angle of cleaning mode C and / or the nozzle angle of cleaning mode D. By variously setting the nozzle angle for each cleaning mode, the area where the sprayed cleaning liquid S contacts the battery cell 100 and / or the spray intensity of the sprayed cleaning liquid S may be variously set. Accordingly, the cleaning effect may be further improved.

[0068] Figure 8 2 is a diagram for describing an operation process of the cleaning device 1 according to an embodiment of the present disclosure.

[0069] Reference Figure 8 In the embodiment of the present disclosure, the cleaning mode can be set to, for example, five types (N=5). Specifically, the five cleaning modes can correspond to A, B, C, D and E, which can correspond to Figures 3 to 7 The cleaning nozzles 20 set to N cleaning modes can be repeatedly arranged along the circumference of the cleaning plate 10. For example, referring to Figure 8 , the cleaning modes may be arranged in the order of A, B, C, D, E, A, B, C, D, E, A, B, C, ... along the circumference of the cleaning nozzle 20. The cleaning nozzle 20 may face the battery cell 100. That is, the inner cleaning nozzle 21 may be directed radially outward toward the battery cell 100, and the outer cleaning nozzle 22 may be directed radially inward toward the battery cell 100.

[0070] Refer again Figure 8 , the placement docks 11 may be spaced apart from each other at an angle θ along the circumference of the cleaning tray 10. Figure 8As an example, the placement docks 11 can be spaced apart from each other at an angle of 8° along the circumference of the cleaning tray 10, and accordingly, a total of 45 placement docks 11 can be provided along the circumference of the cleaning tray 10. In other words, the number of battery cells 100 that can be mounted on the placement docks 11 can be 45. In addition, the number of pairs of cleaning nozzles 20 corresponding to the battery cells 100 can be 45. That is, the placement docks 11 included in the cleaning tray 10 of the present disclosure can be set up to (360 / θ). In addition, the pairs of cleaning nozzles 20 can be set up to (360 / θ).

[0071] Refer again Figure 8 , the placement dock 11 can rotate φ while moving from one point to the next point. More specifically, while the cleaning disk 10 rotates θ, the placement dock 11 can rotate φ. In other words, while the battery unit 100 mounted on the placement dock 11 rotates θ around the rotation center of the cleaning disk, the battery unit 100 mounted on the placement dock 11 can rotate φ. That is, the battery unit 100 can rotate while moving along the circumference of the cleaning disk 10.

[0072] In addition, when the dock 11 is rotated M times according to the angle φ, the dock 11 can return to the initially set angle. Here, M can be a natural number greater than 2. In other words, when the battery unit 100 is rotated M times according to the angle φ, the battery unit 100 can return to its original position. That is, φ*M=360°. In other words, the rotation angle φ of the dock 11 can be (360 / M)°.

[0073] For example, refer to Figure 8 In the embodiment (M=4), if the battery cell 100 rotates 4 times according to φ=90°, it is equivalent to a rotation of 360°, so the battery cell 100 can return to the angle before the rotation begins. More specifically, in Figure 8 In the embodiment, the battery cell 100 can be rotated by φ=90° each time. For example, for the convenience of description, the battery cell 100 can be divided into four sections according to φ=90°, such as Figure 8 As shown, star, square, circular and triangular segments can be defined. Figure 8In the battery cell 100 located at the bottom, the star-shaped segment faces the internal cleaning nozzle 21. When the battery cell 100 moves clockwise by θ and rotates counterclockwise by φ=90° at the same time, the triangular segment faces the internal cleaning nozzle 21. Next, when the battery cell 100 moves clockwise by θ and rotates counterclockwise by φ=90° at the same time, the circular segment faces the internal cleaning nozzle 21. Next, when the battery cell 100 moves clockwise by θ and rotates counterclockwise by φ=90° at the same time, the square segment faces the internal cleaning nozzle 21. Again, when the battery cell 100 moves clockwise by θ and rotates counterclockwise by φ=90° at the same time, the star-shaped segment faces the internal cleaning nozzle 21 again. Finally, the battery cell 100 is reset to the same angle as before the rotation began. That is, when the battery cell 100 rotates M times according to φ, the battery cell 100 is again set to the same angle as the initial angle of the battery cell 100.

[0074] In addition, from the perspective of the battery cell 100, the star-shaped segment can be cleaned in the A mode, and then the star-shaped segment can be cleaned in the E mode. Again, in the same way, when the battery cell 100 moves clockwise by θ degrees and rotates counterclockwise by φ=90° at the same time, while repeating the above actions, the star-shaped segment of the battery cell 100 can be cleaned in the D mode. Thereafter, the battery cell 100 can be cleaned in the C mode. Thereafter, the battery cell 100 can be cleaned in the B mode. Thereafter, the battery cell 100 can be cleaned in the A mode. That is, the star-shaped segment can be cleaned by repeating the A mode→E mode→D mode→C mode→B mode→A mode→E mode→D mode→C mode...etc. As a result, the star-shaped segment corresponding to a part of the outside of the battery cell 100 can be cleaned in the A, B, C, D and E modes as the entire cleaning mode. Similarly, the square segment, the circular segment and the triangular segment can also be cleaned in the A, B, C, D and E modes as the entire cleaning mode.

[0075] In another aspect of the present disclosure, if N cleaning modes are defined as a group, the cleaning mode can be repeated K times. That is, the cleaning device 1 may include K groups of N cleaning modes. For example, assuming that N cleaning modes are repeated K times, the paired cleaning nozzles 20 around the cleaning disk 10 can provide a total of N*K pairs. In other words, the separation angle θ of the placement dock 11 can be (360 / (N*K))°. After all, the placement dock 11 rotates φ while the cleaning disk 10 rotates θ, so that the placement dock 11 can rotate (360 / M)° while the cleaning disk 10 rotates (360 / (N*K))°. In addition, K can be adjusted to an appropriate value depending on the operating speed of the facility.

[0076] In another aspect of the present disclosure, the entire area of ​​the battery cell 100 may be configured to be cleaned in all cleaning modes. For example, M and N may be prime numbers to each other.

[0077] M is 360 / φ, in other words, it can represent the number of positions that occur when the battery cell 100 rotates. Figure 8 , when φ=90°, M=4, which may represent the number of states in which the battery cell 100 can face the cleaning nozzle 20. For example, the battery cell 100 can face the cleaning nozzle 20 at four angles. Specifically, the battery cell 100 may be in a state in which the star-shaped segment faces the internal cleaning nozzle 21. Alternatively, the battery cell 100 may be in a state in which the square segment faces the internal cleaning nozzle 21. Alternatively, the battery cell 100 may be in a state in which the circular segment faces the internal cleaning nozzle 21. Alternatively, the battery cell 100 may be in a state in which the triangular segment faces the internal cleaning nozzle 21. That is, in Figure 8 In the embodiment, the battery cell 100 can be placed in four positions.

[0078] In addition, N is the number of cleaning patterns having a predetermined height and a predetermined angle. Figure 8 In the embodiment of the present invention, for example, N=5 because there are five cleaning modes, A, B, C, D and E.

[0079] In this way, since M=4, N=5, and M and N are prime numbers to each other, the entire area of ​​the battery cell 100 can be cleaned uniformly in all cleaning modes. For example, as described above, the star-shaped section of the battery cell 100 is first cleaned in the A cleaning mode and then cleaned in the E, D, C, and B cleaning modes. Therefore, the star-shaped section is cleaned by all cleaning modes. Similarly, the square, circular, and triangular sections can also be cleaned by all cleaning modes.

[0080] If M and N are not mutually prime, there may be a case where the same area of ​​the battery cell 100 is continuously cleaned only in the same cleaning mode. For example, the case where M=4 and N=2 can be given as an example. If M=4, the battery cell 100 is rotated 90°. For example, the battery cell 100 can be divided into 1 / 4, and each side can be defined as M1, M2, M3, and M4. At the same time, when N=2, the cleaning mode may include, for example, N1 and N2 modes. In this case, the M1 and M3 sides are cleaned only in the N1 cleaning mode, and the M2 and M4 sides are cleaned only in the N2 cleaning mode. That is, the M1 and M3 sides cannot be cleaned in the N2 cleaning mode, and the M2 and M4 sides cannot be cleaned in the N1 cleaning mode. Accordingly, the following problem arises: only certain positions are repeatedly cleaned and certain positions cannot be cleaned. Therefore, it is preferred that, as in the present disclosure, the entire area of ​​the battery cell 100 is constructed to be cleaned in all cleaning modes respectively.

[0081] According to this configuration of the present disclosure, it is possible to ensure uniform cleaning capability of the cylindrical battery cell 100. That is, according to the present disclosure, the entire 360-degree surface of the battery cell 100 can be cleaned uniformly from top to bottom according to the above arrangement. In addition, according to the present disclosure, by standardizing the position of each cleaning nozzle 20 based on the arrangement configuration of the cleaning nozzle according to the rotation of the battery cell 100 and setting it as a fixed parameter, it is possible to eliminate the position deviation of the cleaning nozzle 20 of each facility and ensure uniform cleaning capability.

[0082] The present disclosure has been described above with respect to a limited number of embodiments and drawings, but the present disclosure is not limited thereto, and it will be apparent to those skilled in the art that various modifications and variations may be made thereto within the technical aspects of the present disclosure and the equivalent scope of the appended claims.

[0083] [reference numerals list]

[0084] 1: Cleaning device

[0085] 10: Clean the plate

[0086] 11: Dock

[0087] 20: Clean the nozzle

[0088] 21: Internal cleaning nozzle

[0089] 22: External cleaning nozzle

[0090] 100: Battery Cell

[0091] S: Cleaning liquid

Claims

1. A cleaning device for cleaning a battery cell, the cleaning device comprising: a cleaning tray configured to mount a plurality of battery cells at predetermined intervals and rotatable about a central rotation center; as well as A cleaning nozzle is used to clean the battery cell, the cleaning nozzle comprising an internal cleaning nozzle arranged relative to the cleaning disk in a direction toward the rotation center of the cleaning disk and an external cleaning nozzle arranged relative to the cleaning disk in a direction opposite to the internal cleaning nozzle.

2. The cleaning device according to claim 1, in, The cleaning tray includes a plurality of docking stations for mounting the plurality of battery cells.

3. The cleaning device according to claim 2, wherein: The placement docks are spaced apart from each other at a predetermined angle.

4. The cleaning device according to claim 2, in, The placement dock is configured to be rotatable about the rotation center of the cleaning disc.

5. The cleaning device according to claim 2, in, The docking station is configured to be rotatable about a central rotation center of the docking station.

6. The cleaning device according to claim 5, in, When M is a natural number greater than or equal to 2, the dock is configured to be rotatable by (360 / M)°.

7. The cleaning device according to claim 1, in, The inner cleaning nozzle, the battery cell, and the outer cleaning nozzle are arranged in a straight line.

8. The cleaning device according to claim 1, in, The inner cleaning nozzle and the outer cleaning nozzle are configured to spray a cleaning fluid toward the battery cell.

9. The cleaning device according to claim 6, in, The inner cleaning nozzle and the outer cleaning nozzle have N cleaning patterns with predetermined heights and predetermined angles.

10. The cleaning device according to claim 9, in, M and N are prime to each other.

11. The cleaning device according to claim 9, in, The cleaning mode is set by parameterizing the arrangement height and angle of the cleaning nozzles.

12. The cleaning device according to claim 9, in, The cleaning device includes K groups of N cleaning modes.

13. The cleaning device according to claim 12, in, The docking station rotates (360 / M)° while the cleaning tray rotates (360 / (N*K))°.

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