Battery cover fixing jig, battery cover fixing assembly and battery cover cleaning device

Abstract

The utility model belongs to the technical field of batteries, and discloses a battery cover fixing jig, a battery cover fixing assembly and a battery cover cleaning device, the battery cover fixing jig comprises a cleaning basket and a limiting structure fixed in the cleaning basket, the limiting structure comprises a plurality of through groove groups, the through groove groups correspond to a plurality of battery covers one by one, and the through groove groups are arranged in the cleaning basket. The through groove set comprises a first through groove, a second through groove and a third through groove, a groove opening of the first through groove and a groove opening of the second through groove are oppositely arranged in the horizontal direction, the third through groove is located below the first through groove and the second through groove, a groove opening of the third through groove faces upwards, and the two opposite sides of the battery cover in the horizontal direction can be inserted into the first through groove and the second through groove respectively. The bottom of the battery cover can be inserted into the third through groove and abut against the groove bottom of the third through groove, at least one of the first through groove, the second through groove and the third through groove is a scratch-resistant groove, the groove width of the scratch-resistant groove is gradually reduced in the groove depth direction of the scratch-resistant groove, and the battery cover fixing jig can improve the cleaning effect of the battery cover and prevent the surface of the battery cover from being scratched.

Description

Technical Field

[0001] The utility model relates to the technical field of battery production, in particular to a battery cover fixing jig, a battery cover fixing assembly and a battery cover cleaning device. Background Art

[0002] During the battery production process, the battery covers often need to be ultrasonically cleaned. The existing cleaning method is to stack multiple battery covers and place them in a cleaning basket for cleaning.

[0003] However, during the cleaning process, since multiple battery covers are stacked, the surfaces of two adjacent battery covers that are in contact with each other cannot be cleaned cleanly, and the surfaces of two adjacent battery covers that are in contact with each other may rub and collide, thereby damaging the surfaces of the battery covers.

[0004] Therefore, it is urgent to propose a battery cover fixing fixture, a battery cover fixing assembly and a battery cover cleaning device to solve the above technical problems. Utility Model Content

[0005] The first object of the present utility model is to provide a battery cover fixing jig, which can improve the cleanliness of the battery cover surface and reduce the probability of the battery cover surface being damaged.

[0006] To achieve this purpose, the present invention adopts the following technical solutions:

[0007] A battery cover fixing fixture includes a cleaning basket and a limiting structure. The limiting structure is fixed in the cleaning basket. The limiting structure is provided with a plurality of through-slot groups. The plurality of through-slot groups are configured to correspond one-to-one to the plurality of battery covers. The through-slot groups include a first through-slot, a second through-slot and a third through-slot. The notch of the first through-slot and the notch of the second through-slot are arranged opposite to each other in the horizontal direction. The first through-slot and the second through-slot are both located above the third through-slot. The notch of the third through-slot is arranged upward. The battery cover can be inserted into the first through-slot and the second through-slot on opposite sides in the horizontal direction respectively. The bottom of the battery cover can be inserted into the third through-slot and rest against the bottom of the third through-slot. At least one of the first through-slot, the second through-slot and the third through-slot is an anti-scratch groove. The width of the anti-scratch groove gradually decreases along the groove depth direction toward the anti-scratch groove.

[0008] Optionally, the first through groove, the second through groove and the third through groove are all anti-scratch grooves.

[0009] Optionally, the minimum width of the anti-scratch groove is greater than the thickness of the battery cover;

[0010] And / or, the minimum width of the anti-scratch groove is h1, the thickness of the battery cover is h2, and 0.5 mm ≤ (h1 - h2) ≤ 5 mm.

[0011] Optionally, in the same through groove group, the line connecting the center of the bottom of the first through groove and the center of the bottom of the second through groove is the first connecting line, and the line connecting the center of the first connecting line and the center of the bottom of the third through groove is the second connecting line, and the second connecting line is parallel to the vertical direction.

[0012] Optionally, the groove depth of the first through groove is a, 3.5 mm ≤ a ≤ 8 mm;

[0013] And / or, the groove depth of the second through groove is b, 3.5 mm ≤ b ≤ 8 mm;

[0014] And / or, the groove depth of the third through groove is c, 3.5mm≤c≤8mm.

[0015] Optionally, the limiting structure includes a first rack, a second rack and a third rack, the first rack and the second rack are spaced apart in the horizontal direction, the first rack and the second rack are both located above the third rack, the orthographic projection of the third rack on the bottom of the cleaning basket is located between the orthographic projection of the first rack on the bottom of the cleaning basket and the orthographic projection of the second rack on the bottom of the cleaning basket, the multiple tooth grooves on the first rack are multiple first through grooves in the multiple through groove groups, the multiple tooth grooves on the second rack are multiple second through grooves in the multiple through groove groups, and the multiple tooth grooves on the third rack are multiple third through grooves in the multiple through groove groups.

[0016] Optionally, there are multiple limiting structures.

[0017] Optionally, multiple limiting structures are arranged in the horizontal direction, and the first racks of the multiple limiting structures are all located on the same side of the corresponding second racks. In each two adjacent limiting structures, the rack body of the first rack of one is connected to the rack body of the second rack of the other.

[0018] A second object of the present invention is to provide a battery cover fixing assembly, in which each battery cover is respectively restrained in a cleaning basket by a corresponding through-slot group, so that the surface cleanliness of the battery cover is high and the probability of the battery cover surface being scratched is low.

[0019] To achieve this purpose, the present invention adopts the following technical solutions:

[0020] A battery cover fixing assembly includes a battery cover and the above-mentioned battery cover fixing fixture. There are multiple battery covers, and the multiple battery covers correspond one-to-one to the multiple through-slot groups. Each battery cover is inserted into the corresponding first through-slot and second through-slot on two opposite sides in the horizontal direction, and the bottom of each battery cover is inserted into the corresponding third through-slot and rests on the bottom of the corresponding third through-slot.

[0021] The third object of the present utility model is to provide a battery cover cleaning device, which can improve the cleanliness of the battery cover surface and reduce the probability of damage to the battery cover surface.

[0022] To achieve this purpose, the present invention adopts the following technical solutions:

[0023] The battery cover cleaning device comprises a cleaning box and the above-mentioned battery cover fixing fixture, and the cleaning basket is arranged in the cleaning box.

[0024] Beneficial effects of the utility model:

[0025] The battery cover fixing fixture provided by the utility model has a limiting structure fixed in the cleaning basket, and the limiting structure is provided with a plurality of through slot groups, and the plurality of through slot groups are configured to correspond to the plurality of battery covers one by one, and the through slot group includes a first through slot, a second through slot and a third through slot, and the notch of the first through slot and the notch of the second through slot are arranged opposite to each other in the horizontal direction, and the first through slot and the second through slot are both located above the third through slot, and the notch of the third through slot is arranged upward. When cleaning the battery cover, the two opposite sides of the battery cover in the horizontal direction are respectively inserted into the first through slot and the second through slot of a through slot group, and the bottom of the battery cover is inserted into the The third through slot of the through slot group allows the bottom of the battery cover to rest against the bottom of the third through slot, thereby confining one battery cover in the cleaning basket, and fixing multiple battery covers in multiple through slot groups respectively, so that multiple battery covers are confined in the cleaning basket at intervals. It can be seen that the battery cover fixing fixture can leave a gap between the surfaces of two adjacent battery covers facing each other when cleaning the battery cover, thereby improving the cleaning cleanliness of the battery cover surface, and avoiding friction and collision between the surfaces of two adjacent battery covers facing each other during cleaning, thereby reducing the chance of damage to the battery cover surface.

[0026] On the other hand, at least one of the first through groove, the second through groove and the third through groove of the battery cover fixing fixture is an anti-scratch groove, and the groove width of the anti-scratch groove gradually decreases along the groove depth direction of the anti-scratch groove, that is, the groove width of the anti-scratch groove notch area is larger. When the battery cover is inserted into the anti-scratch groove and when the battery cover is taken out of the anti-scratch groove, the probability of the battery cover surface being scratched by the anti-scratch groove notch can be reduced, which has the effect of further reducing the probability of damage to the battery cover surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of the battery cover fixing fixture provided by the utility model;

[0028] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0029] In the picture:

[0030] 10. Battery cover; 100. Cleaning basket; 200. Position limiting structure; 210. First rack; 211. First through slot; 220. Second rack; 221. Second through slot; 230. Third rack; 231. Third through slot; 310. First connecting line; 320. Second connecting line. DETAILED DESCRIPTION

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0032] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0033] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0035] This embodiment provides a battery cover fixing jig, which is mainly used in a battery cover cleaning device, and can improve the cleanliness of the battery cover surface and reduce the probability of damage to the battery cover surface.

[0036] Specifically, if Figure 1 and Figure 2 As shown, the battery cover fixing fixture includes a cleaning basket 100 and a limiting structure 200. The limiting structure 200 is fixed in the cleaning basket 100. The limiting structure 200 is provided with a plurality of through-slot groups. For example, the number of through-slot groups can be ten, fifteen or twenty, etc. The plurality of through-slot groups are configured to correspond one to one with the plurality of battery covers 10. The through-slot groups include a first through-slot 211, a second through-slot 221 and a third through-slot 231. The notch of the first through-slot 211 and the notch of the second through-slot 221 are arranged opposite to each other in the horizontal direction. The first through-groove 211 and the second through-groove 221 are both located above the third through-groove 231, and the notch of the third through-groove 231 is arranged upward. The two opposite sides of the battery cover 10 in the horizontal direction can be inserted into the first through-groove 211 and the second through-groove 221 respectively, and the bottom of the battery cover 10 can be inserted into the third through-groove 231 and rest against the bottom of the third through-groove 231. At least one of the first through-groove 211, the second through-groove 221 and the third through-groove 231 is an anti-scratch groove, and the groove width of the anti-scratch groove gradually decreases along the groove depth direction toward the anti-scratch groove.

[0037] Based on the above design, the limiting structure 200 is fixed in the cleaning basket 100, and the limiting structure 200 is provided with a plurality of through slot groups, and the plurality of through slot groups are configured to correspond one to one with the plurality of battery covers 10, and the through slot group includes a first through slot 211, a second through slot 221 and a third through slot 231, and the notch of the first through slot 211 and the notch of the second through slot 221 are arranged opposite to each other in the horizontal direction, and the first through slot 211 and the second through slot 221 are both located above the third through slot 231, and the notch of the third through slot 231 is arranged upward. When cleaning the battery cover 10, the opposite sides of the battery cover 10 in the horizontal direction are respectively inserted into the first through slot 211 and the second through slot 221 of a through slot group, and the bottom of the battery cover 10 is inserted into the third through slot 231 of the through slot group. 1 so that the bottom of the battery cover 10 abuts against the bottom of the third through groove 231, thereby confining one battery cover 10 in the cleaning basket 100, and fixing multiple battery covers 10 in multiple through groove groups respectively, so that multiple battery covers 10 are confined in the cleaning basket 100 at intervals. It can be seen that the battery cover fixing fixture solves the problem of multiple battery covers 10 being stacked in the cleaning basket 100 when cleaning the battery covers 10. When cleaning the battery covers 10, a gap can be left between the mutually facing surfaces of two adjacent battery covers 10, thereby improving the cleaning cleanliness of the battery cover 10 surface, and also preventing friction and collision between the mutually facing surfaces of two adjacent battery covers 10 during cleaning, thereby reducing the probability of damage to the battery cover 10 surface.

[0038] On the other hand, at least one of the first through groove 211, the second through groove 221 and the third through groove 231 of the battery cover fixing fixture is an anti-scratch groove. The groove width of the anti-scratch groove gradually decreases along the groove depth direction of the anti-scratch groove, that is, the groove width of the anti-scratch groove notch area is larger. When the battery cover 10 is inserted into the anti-scratch groove and when the battery cover 10 is taken out of the anti-scratch groove, the probability of the surface of the battery cover 10 being scratched by the anti-scratch groove notch can be reduced, which has the effect of further reducing the probability of damage to the surface of the battery cover 10.

[0039] It should be noted that the battery cover fixing fixture provided in this embodiment is mainly applied to round battery covers 10. Of course, in other implementation schemes, it can also be applied to battery covers 10 of square or other shapes.

[0040] Furthermore, the first through groove 211 , the second through groove 221 and the third through groove 231 are all anti-scratch grooves, which further reduce the probability of the surface of the battery cover 10 being scratched when the battery cover 10 is taken out and placed.

[0041] Optionally, the minimum width of the anti-scratch groove is greater than the thickness of the battery cover 10. During the cleaning process of the battery cover 10, this structural design can cause the battery cover 10 to shake slightly with the flow of the cleaning liquid, thereby improving the cleaning effect of the battery cover 10.

[0042] Furthermore, the minimum groove width of the anti-scratch groove is h1, the thickness of the battery cover 10 is h2, 0.5mm≤(h1-h2)≤5mm, and illustratively, (h1-h2) can be 0.5mm, 1mm, 2mm, 3mm or 5mm, etc. If (h1-h2) is less than 0.5mm, the shaking amplitude of the battery cover 10 during the cleaning process is too small, thereby reducing the cleaning effect of the battery cover 10. If (h1-h2) is greater than 5mm, the shaking amplitude of the battery cover 10 during the cleaning process is too large, thereby easily bumping into the surface of the battery cover 10, increasing the risk of damaging the surface of the battery cover 10.

[0043] Optionally, the groove depth of the first through groove 211 is a, 3.5mm≤a≤8mm. For example, a can be 3.5mm, 4.5mm, 6mm, 7mm or 8mm, etc. If a is less than 3.5mm, the depth of the side of the battery cover 10 inserted into the first through groove 211 is shallow, and it is easy for the side of the battery cover 10 to loosen from the first through groove 211 during the cleaning process. If a is greater than 8mm, the depth of the side of the battery cover 10 inserted into the first through groove 211 is deep, and it is easy for the area of ​​the battery cover 10 located in the first through groove 211 to not be cleaned properly.

[0044] Optionally, the groove depth of the second through groove 221 is b, 3.5mm≤b≤8mm. For example, b can be 3.5mm, 4.5mm, 6mm, 7mm or 8mm, etc. If b is less than 3.5mm, the depth of the side of the battery cover 10 inserted into the second through groove 221 is shallow, and the side of the battery cover 10 is likely to loosen from the second through groove 221 during cleaning. If b is greater than 8mm, the depth of the side of the battery cover 10 inserted into the second through groove 221 is deep, and the area of ​​the battery cover 10 located in the second through groove 221 is likely to not be cleaned properly.

[0045] Optionally, the groove depth of the third through groove 231 is c, 3.5mm≤c≤8mm. For example, c can be 3.5mm, 4.5mm, 6mm, 7mm or 8mm, etc. If c is less than 3.5mm, the depth of the bottom of the battery cover 10 inserted into the third through groove 231 is shallow, and it is easy for the bottom of the battery cover 10 to loosen from the third through groove 231 during the cleaning process. If c is greater than 8mm, the depth of the bottom of the battery cover 10 inserted into the third through groove 231 is deep, and it is easy for the area of ​​the battery cover 10 located in the third through groove 231 to not be cleaned properly.

[0046] Alternatively, as Figure 1 and Figure 2 As shown, in the same through-groove group, the line connecting the center of the bottom of the first through-groove 211 and the center of the bottom of the second through-groove 221 is the first connecting line 310, and the line connecting the center of the first connecting line 310 and the center of the bottom of the third through-groove 231 is the second connecting line 320. The second connecting line 320 is parallel to the vertical direction, so that the battery cover 10 can be roughly in a vertical state in the cleaning basket 100. Compared with the battery cover 10 being in an inclined state in the cleaning basket 100, the structural design provided in this embodiment can reduce the difficulty of placing the battery cover 10 into the first through-groove 211, the second through-groove 221 and the third through-groove 231, and reduce the difficulty of taking the battery cover 10 out of the first through-groove 211, the second through-groove 221 and the third through-groove 231, and is particularly suitable for situations where a robot takes and places the battery cover 10.

[0047] Alternatively, as Figure 1 and Figure 2As shown, the limiting structure 200 includes a first rack 210, a second rack 220 and a third rack 230. The first rack 210 and the second rack 220 are arranged at intervals in the horizontal direction. The tooth groove of the first rack 210 is located on the side of the first rack 210 facing the second rack 220, and the tooth groove of the second rack 220 is located on the side of the second rack 220 facing the first tooth groove. The multiple tooth grooves on the first rack 210 are multiple first through grooves 211 in the multiple through groove groups, and the multiple tooth grooves on the second rack 220 are multiple second through grooves 221 in the multiple through groove groups. The first rack 210 and the second rack 220 are both located above the third rack 230. The orthographic projection of the rack 230 on the bottom of the cleaning basket 100 is located between the orthographic projection of the first rack 210 on the bottom of the cleaning basket 100 and the orthographic projection of the second rack 220 on the bottom of the cleaning basket 100. The tooth groove of the third rack 230 is located at the top of the third rack 230, and the multiple tooth grooves on the third rack 230 are multiple third through grooves 231 in multiple through groove groups. The rack is a relatively common standard part in this field. The technical solution provided in this embodiment can reduce the difficulty of procurement and production. It is only necessary to purchase the corresponding rack according to the shape and data parameters of the tooth groove, and then assemble the corresponding rack with the cleaning basket 100, which has the effect of improving production efficiency and reducing production costs.

[0048] Further, if Figure 1 and Figure 2 As shown, there are multiple limiting structures 200. For example, the number of limiting structures 200 can be five, ten or fifteen, etc. Designing the number of limiting structures 200 to be multiple can greatly increase the number of battery covers 10 cleaned in the same batch, which has the effect of improving the cleaning efficiency of the battery cover 10.

[0049] Furthermore, if Figure 1 and Figure 2 As shown, multiple limiting structures 200 are arranged in a horizontal direction, and the first racks 210 of the multiple limiting structures 200 are all located on the same side of the corresponding second racks 220. For example, in this embodiment, the first rack 210 in each limiting structure 200 is located on the left side of the second rack 220 in the limiting structure 200. In each two adjacent limiting structures 200, the rack body of the first rack 210 of one is connected to the rack body of the second rack 220 of the other, so that in the two adjacent limiting structures 200, the first rack 210 of one and the second rack 220 of the other form an integrated structure, thereby greatly reducing the overall volume of the battery cover fixing fixture.

[0050] In this embodiment, the first rack 210 , the second rack 220 , and the third rack 230 are all made of a high-temperature and corrosion-resistant material such as Teflon.

[0051] This embodiment also provides a battery cover fixing assembly, which includes a battery cover 10 and the aforementioned battery cover fixing fixture. There are multiple battery covers 10, each corresponding one-to-one to a plurality of through-slot groups. The horizontally opposite sides of each battery cover 10 are respectively inserted into the corresponding first through-slot 211 and second through-slot 221. The bottom of each battery cover 10 is respectively inserted into the corresponding third through-slot 231 and abuts against the bottom of the corresponding third through-slot 231. Each battery cover 10 in this battery cover fixing assembly is restrained in the cleaning basket 100 by a corresponding through-slot group. Therefore, the surface cleanliness of the battery cover 10 is high, and the probability of the surface of the battery cover 10 being scratched is low.

[0052] This embodiment also provides a battery cover cleaning device, which includes a cleaning box and the above-mentioned battery cover fixing fixture, and a cleaning basket 100 is arranged in the cleaning box. The battery cover cleaning device adopts the above-mentioned battery cover fixing fixture. When cleaning multiple battery covers 10, the multiple battery covers 10 can be confined in the cleaning basket 100 at intervals, thereby improving the cleanliness of the surface of the battery cover 10, and can also avoid friction and collision between the surfaces of two adjacent battery covers 10 facing each other during cleaning, thereby reducing the probability of damage to the surface of the battery cover 10. In addition, the design of the anti-scratch groove can reduce the probability of the notch of the anti-scratch groove scratching the surface of the battery cover 10 when taking and placing the battery cover 10, thereby further protecting the surface of the battery cover 10.

[0053] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. The battery cover fixing fixture is characterized by: The invention comprises a cleaning basket (100) and a limiting structure (200), wherein the limiting structure (200) is fixed in the cleaning basket (100), and the limiting structure (200) is provided with a plurality of through slot groups, wherein the plurality of through slot groups are configured to correspond one to one with a plurality of battery covers (10), and the through slot groups include a first through slot (211), a second through slot (221) and a third through slot (231), wherein the notch of the first through slot (211) and the notch of the second through slot (221) are arranged opposite to each other in the horizontal direction, and the first through slot (211) and the second through slot (221) are both located in the first through slot (211). Above the three-way groove (231), the notch of the third through groove (231) is arranged upward, and the battery cover (10) can be respectively inserted into the first through groove (211) and the second through groove (221) on two opposite sides in the horizontal direction, and the bottom of the battery cover (10) can be inserted into the third through groove (231) and abut against the bottom of the third through groove (231), and at least one of the first through groove (211), the second through groove (221) and the third through groove (231) is an anti-scratch groove, and the groove width of the anti-scratch groove gradually decreases along the groove depth direction toward the anti-scratch groove.

2. The battery cover fixing fixture according to claim 1, characterized in that: The first through groove (211), the second through groove (221), and the third through groove (231) are all anti-scratch grooves.

3. The battery cover fixing fixture according to claim 2, characterized in that: The minimum groove width of the anti-scratch groove is greater than the thickness of the battery cover (10); And / or, the minimum groove width of the anti-scratch groove is h1, the thickness of the battery cover (10) is h2, and 0.5 mm ≤ (h1-h2) ≤ 5 mm.

4. The battery cover fixing jig according to any one of claims 1 to 3, characterized in that: In the same through-groove group, a line connecting the center of the bottom of the first through-groove (211) and the center of the bottom of the second through-groove (221) is a first connecting line (310), a line connecting the center of the first connecting line (310) and the center of the bottom of the third through-groove (231) is a second connecting line (320), and the second connecting line (320) is parallel to the vertical direction.

5. The battery cover fixing jig according to any one of claims 1 to 3, characterized in that: The groove depth of the first through groove (211) is a, 3.5mm≤a≤8mm; And / or, the groove depth of the second through groove (221) is b, 3.5mm≤b≤8mm; And / or, the groove depth of the third through groove (231) is c, 3.5mm≤c≤8mm.

6. The battery cover fixing jig according to any one of claims 1 to 3, characterized in that: The limiting structure (200) includes a first rack (210), a second rack (220) and a third rack (230), wherein the first rack (210) and the second rack (220) are arranged at intervals along the horizontal direction, the first rack (210) and the second rack (220) are both located above the third rack (230), and the orthographic projection of the third rack (230) on the bottom of the cleaning basket (100) is located at the position of the first rack (210) on the bottom of the cleaning basket (100). Between the orthographic projection of the bottom of the basket (100) and the orthographic projection of the second rack (220) on the bottom of the cleaning basket (100), the multiple tooth grooves on the first rack (210) are multiple first through grooves (211) in the multiple through groove groups, the multiple tooth grooves on the second rack (220) are multiple second through grooves (221) in the multiple through groove groups, and the multiple tooth grooves on the third rack (230) are multiple third through grooves (231) in the multiple through groove groups.

7. The battery cover fixing fixture according to claim 6, characterized in that: There are multiple limiting structures (200).

8. The battery cover fixing fixture according to claim 7, characterized in that: A plurality of the limiting structures (200) are arranged along the horizontal direction, and the first racks (210) of the plurality of the limiting structures (200) are all located on the same side of the corresponding second racks (220), and in each two adjacent limiting structures (200), the rack body of the first rack (210) of one is connected to the rack body of the second rack (220) of the other.

9. The battery cover fixing assembly is characterized in that: The invention comprises a battery cover (10) and a battery cover fixing fixture according to any one of claims 1 to 8, wherein the number of the battery covers (10) is multiple, and the multiple battery covers (10) correspond one-to-one to the multiple through-slot groups, and each of the battery covers (10) is respectively inserted into the corresponding first through-slot (211) and the second through-slot (221) on two opposite sides in the horizontal direction, and the bottom of each of the battery covers (10) is respectively inserted into the corresponding third through-slot (231) and rests against the bottom of the corresponding third through-slot (231).

10. Battery cover cleaning device, characterized in that: It comprises a cleaning box and the battery cover fixing fixture according to any one of claims 1 to 8, wherein the cleaning basket (100) is arranged in the cleaning box.

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