A battery pack cleaning unit and a battery rack containing the same

Abstract

The utility model provides a kind of battery pack cleaning unit and the battery rack containing it, it is related to battery technology field, battery pack cleaning unit includes housing and adjusting mechanism, the housing includes accommodating cavity and opening, the accommodating cavity is used to accommodate battery pack, the opening is communicated with the accommodating cavity, the adjusting mechanism is located at the opening, the adjusting mechanism is configured to be able to open and close the opening, cleaning mechanism is equipped in the accommodating cavity, and the cleaning mechanism is used to clean processing to battery pack, both can realize efficient cleaning processing to battery pack, and can avoid the diffusion of pollutant on battery pack in cleaning process, guarantee the quality of battery replacement.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery pack cleaning unit and a battery holder containing the same. Background Technology

[0002] Battery swapping is an efficient way to replenish energy for new energy vehicles. Simply remove the battery pack with insufficient or depleted power from the bottom of the vehicle and replace it with a fully charged battery pack from the battery swapping station to complete the energy replenishment.

[0003] Due to the complex road conditions in which vehicles travel, battery packs can easily accumulate dust, mud, and other contaminants during vehicle use. During the battery swapping process, these contaminants can easily fall onto the battery pack's lock body. If the contaminants are not cleaned before the battery pack is swapped to another vehicle after being charged at the swapping station, they can affect the connection between the battery pack and the vehicle, potentially leading to swapping failure, reduced swapping efficiency, and certain safety hazards. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a battery pack cleaning unit and a battery holder containing the same, which can perform efficient cleaning of the battery pack and prevent the spread of contaminants on the battery pack during the cleaning process, thus helping to ensure the quality of battery swapping.

[0005] This utility model provides a battery pack cleaning unit, including a housing and an adjustment mechanism. The housing includes a receiving cavity and an opening. The receiving cavity is used to receive the battery pack, and the opening communicates with the receiving cavity. The adjustment mechanism is located at the opening and is configured to open and close the opening. A cleaning mechanism is provided inside the receiving cavity for cleaning the battery pack.

[0006] In one embodiment, the adjustment mechanism includes a first sealing plate and a guide member. The guide member is disposed on both sides of the first sealing plate in a first direction. The two ends of the first sealing plate in the first direction are movably connected to the guide member so that the first sealing plate can move relative to the guide member in a third direction to open or close the opening.

[0007] In one embodiment, a second sealing plate is further included. The two ends of the second sealing plate in the first direction are fixedly connected or movably connected to the guide member. The first sealing plate and the second sealing plate are distributed along the second direction and are slidably fitted together. The first sealing plate is capable of moving relative to the second sealing plate in a third direction.

[0008] In one embodiment, a guide portion is provided between the first sealing plate and the second sealing plate. The guide portion includes a groove and a mating member. The groove is formed on one of the first sealing plate and the second sealing plate, and the mating member protrudes from the other sealing plate and is accommodated in the groove and slides with the groove.

[0009] In one embodiment, a protective element is provided within the receiving cavity, which cooperates with the water and electricity interface on the battery pack to protect the water and electricity interface during cleaning.

[0010] In one embodiment, a guiding mechanism is further included, which is disposed within the receiving cavity to facilitate the entry of the battery pack into the receiving cavity through the opening.

[0011] In one embodiment, a collection mechanism is further included, the collection mechanism comprising a housing mounted on one side of the housing and the interior of the housing communicating with the receiving cavity, the housing being used to collect contaminants on the battery pack.

[0012] In one embodiment, the housing is configured to include at least one removable movable plate, and / or, the housing is equipped with a pipe, one end of which communicates with the interior of the housing and the other end of which is connected to a vacuum cleaner.

[0013] This utility model also proposes a battery rack, including a frame, the frame including at least one of the above-mentioned battery pack cleaning units.

[0014] In one embodiment, the frame further includes at least one storage area for accommodating a battery pack.

[0015] The beneficial effects of this utility model are as follows:

[0016] The adjustment mechanism allows the receiving cavity to be opened or closed. When a battery pack needs cleaning, the adjustment mechanism opens the opening, allowing the battery pack to enter the receiving cavity. Then, the adjustment mechanism closes the opening, sealing the receiving cavity, and the cleaning mechanism cleans the battery pack. By sealing the receiving cavity, contaminants can be prevented from splashing and spreading during the cleaning process, thus ensuring the cleaning effect of the battery pack. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of another overall structure of an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the adjustment mechanism according to an embodiment of the present invention;

[0021] Figure 4 This is a partially enlarged schematic diagram of the adjustment mechanism according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the collection mechanism according to an embodiment of the present invention.

[0023] In the picture:

[0024] 10-Shell; 101-Top plate; 102-Bottom plate; 103-Side plate; 11-Receiving cavity; 12-Protective component;

[0025] 20-Adjusting mechanism; 21-First sealing plate; 22-Second sealing plate; 23-Guide component; 24-Drive component; 25-Mounting base; 251-First mounting plate; 252-Second mounting plate; 26-Slide groove; 27-Matching component;

[0026] 30 - Cleaning mechanism; 31 - Nozzle; 32 - Air tube;

[0027] 40 - Guiding mechanism; 41 - First guide roller; 42 - Second guide roller;

[0028] 50 - Collection mechanism; 51 - Box body; 52 - Piping;

[0029] 60 - Frame; 61 - Storage area. Detailed Implementation

[0030] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0031] Unless otherwise explicitly specified and limited, the terms "setup," "installation," and "connection" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms based on the specific circumstances.

[0032] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0034] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0035] The term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0036] Battery swapping is an efficient way to replenish energy for new energy vehicles. Simply remove the battery pack with insufficient or depleted power from the bottom of the vehicle and replace it with a fully charged battery pack from the battery swapping station to complete the energy replenishment.

[0037] Due to the complex road conditions in which vehicles travel, battery packs can easily accumulate dust, mud, and other contaminants during vehicle use. During the battery swapping process, these contaminants can easily fall onto the lock body or interface of the battery pack. When the battery pack is charged at the battery swapping station and then swapped to another vehicle, if the contaminants are not cleaned, they can affect the connection between the battery pack and the vehicle, and in severe cases, lead to battery swapping failure, affecting battery swapping efficiency and posing certain safety hazards.

[0038] Combination Figure 1 and Figure 2 The battery pack cleaning unit proposed in this utility model includes a housing 10 and an adjustment mechanism 20. The housing 10 includes a receiving cavity 11 and an opening. The receiving cavity 11 is used to receive the battery pack, and the opening is connected to the receiving cavity 11. The adjustment mechanism 20 is located at the opening and is configured to open and close the opening. A cleaning mechanism 30 is provided inside the receiving cavity 11 and is used to clean the battery pack.

[0039] Figure 1 This is a schematic diagram of a structure with an open opening. Figure 2 This is a schematic diagram of a structure with an open and closed opening. (Refer to...) Figure 1When the opening is open, the receiving cavity 11 is in communication with the outside of the housing 10, and the battery pack can enter the receiving cavity 11 through the opening; see reference. Figure 2 When the opening is closed, the receiving cavity 11 is in a closed state, and the battery pack can be cleaned by the cleaning mechanism 30.

[0040] The adjustment mechanism 20 can open or close the receiving cavity 11. When a battery pack needs to be cleaned, the adjustment mechanism 20 opens the opening, allowing the battery pack to enter the receiving cavity 11 through the opening. Then, the adjustment mechanism 20 closes the opening, sealing the receiving cavity 11. The cleaning mechanism 30 then cleans the battery pack. By sealing the receiving cavity 11, contaminants can be prevented from splashing and spreading during the cleaning process, which helps to ensure the cleaning effect of the battery pack.

[0041] In one example, the battery pack cleaning unit proposed in this invention is used in a battery swapping station; more specifically, the battery pack cleaning unit proposed in this invention is used in a battery rack within a battery swapping station.

[0042] In one example scheme, combined Figure 1 and Figure 2 The housing 10 includes a top plate 101, a bottom plate 102, and a side plate 103. The top plate 101 and the bottom plate 102 are opposite each other in the vertical direction. The side plate 103 is located between the top plate 101 and the bottom plate 102 and cooperates with the top plate 101 and the bottom plate 102 to form a receiving cavity 11 and an opening.

[0043] Optionally, the side panel 103 is a square or rectangular panel, and the number of side panels 103 is set to three, with two side panels 103 arranged opposite each other and the other side panel 103 arranged opposite to the opening.

[0044] Optionally, the top plate 101, bottom plate 102 and side plate 103 are connected by screws, which makes it easy to adjust the size of the receiving cavity 11 according to the specifications of the battery pack.

[0045] In an example scheme, such as Figure 1 As shown, a protective element 12 is provided inside the receiving cavity 11. The protective element 12 is used to cooperate with the water and electricity interfaces on the battery pack to protect the water and electricity interfaces of the battery pack during the cleaning process. When the cleaning mechanism 30 cleans the battery pack, the protective element 12 can prevent contaminants from entering the water and electricity interfaces of the battery pack, thereby avoiding secondary pollution of the battery pack.

[0046] For example, the protective component 12 is a water and electricity plug that can be connected to the water and electricity interface on the battery pack. The protective component 12 can both protect the water and electricity interface and charge the battery pack during the cleaning process.

[0047] Figure 3This is a schematic diagram of the structure of the adjustment mechanism 20 according to an embodiment of the present invention. For ease of understanding and description, the X-axis direction in the coordinate system is defined as the first direction, the Y-axis direction as the second direction, and the Z-axis direction as the third direction (i.e., the up and down direction), wherein the first direction, the second direction, and the third direction are perpendicular to each other.

[0048] In one embodiment, such as Figure 3 As shown, the adjustment mechanism 20 includes a first sealing plate 21 and a guide member 23. The guide member 23 is located on both sides of the first sealing plate 21 in a first direction and extends in a third direction. The two ends of the first sealing plate 21 in the first direction are movably connected to the guide member 23. The first sealing plate 21 and the guide member 23 are slidably fitted. The first sealing plate 21 can move relative to the guide member 23 in a third direction to open or close the opening. When the first sealing plate 21 moves to the opening, the opening is closed.

[0049] In an example scheme, such as Figure 3 As shown, the adjustment mechanism 20 also includes a second sealing plate 22. The two ends of the second sealing plate 22 in the first direction are fixedly connected to or movably connected to the guide member 23. The first sealing plate 21 and the second sealing plate 22 are distributed along the second direction and are arranged adjacent to each other. The first sealing plate 21 can slide with the second sealing plate 22. The first sealing plate 21 can move relative to the second sealing plate 22 in the third direction to change the relative position of the first sealing plate 21 and the opening.

[0050] When the second sealing plate 22 is fixedly connected to the guide member 23, the opening closes when the first sealing plate 21 moves relative to the second sealing plate 22 to the opening; when the first sealing plate 21 moves to partially or completely overlap with the second sealing plate 22, the opening opens. At this time, the size of the first sealing plate 21 matches the opening, and the first sealing plate 21 can completely cover the opening.

[0051] When the second sealing plate 22 is movably connected to the guide member 23, the second sealing plate 22 can move relative to the guide member 23 in a third direction. When the first sealing plate 21 moves towards the opening relative to the second sealing plate 22 in a third direction, the first sealing plate 21 can drive the second sealing plate 22 to move at least partially to the opening. The first sealing plate 21 and the second sealing plate 22 cooperate to close the opening.

[0052] When the first sealing plate 21 moves away from the opening in a third direction relative to the second sealing plate 22, the first sealing plate 21 can drive the second sealing plate 22 to move relative to the guide member 23 until the second sealing plate 22 can no longer move in the third direction relative to the guide member 23. At this time, the first sealing plate 21 and the second sealing plate 22 partially or completely overlap.

[0053] For example, the two guide members 23 have a first guide groove and a second guide groove at their close ends. The first guide groove and the second guide groove both extend along a third direction and are distributed along a second direction. The two ends of the first sealing plate 21 are accommodated in the first guide groove, and the two ends of the second sealing plate 22 are accommodated in the second guide groove.

[0054] In one example scheme, combined Figure 3 and Figure 4 The adjustment mechanism 20 also includes a drive member 24, which is used to connect with the first sealing plate 21 and drive the first sealing plate 21 to move in a third direction.

[0055] For example, the drive unit 24 is an electric actuator, the output shaft of which is connected to the first sealing plate 21. Through the extension and retraction of its output shaft, the first sealing plate 21 is driven to move in a third direction, which can realize the automatic control of the first sealing plate 21 without the need for manual adjustment by the operator.

[0056] In an example scheme, such as Figure 4 As shown, a guide portion is provided between the first sealing plate 21 and the second sealing plate 22, and the two are connected by the guide portion. The guide portion includes a slide groove 26 and a mating member 27. The slide groove 26 is opened on one of the first sealing plate 21 and the second sealing plate 22, and the mating member 27 protrudes from the other one. The mating member 27 is accommodated in the slide groove 26 and slides with the slide groove 26. When the first sealing plate 21 and the second sealing plate 22 move relative to each other, the mating member 27 can move in the slide groove 26.

[0057] When the second sealing plate 22 is movably connected to the guide member 23, when the mating member 27 moves to the limit position in the slide groove 26, that is, when the mating member 27 contacts the groove wall of the slide groove 26 in the third direction, the first sealing plate 21 can drive the second sealing plate 22 to move relative to the guide member 23.

[0058] For example, the mating part 27 adopts a guide wheel, which can reduce the friction between the mating part 27 and the slide groove 26, and help ensure the movement stability of the first sealing plate 21 relative to the second sealing plate 22.

[0059] For example, two guide portions are distributed along a first direction and are disposed between the first sealing plate 21 and the second sealing plate 22.

[0060] In one embodiment, such as Figure 1 As shown, the cleaning mechanism 30 includes a nozzle 31 and an air pipe 32. The nozzle 31 is connected to the air pipe 32, which is used to connect to an air intake device. The nozzle 31 can spray air into the receiving cavity 11 to remove contaminants from the battery pack. Compared to manual cleaning by on-site staff, automatic cleaning helps save labor costs and improves cleaning efficiency.

[0061] For example, the nozzle 31 is positioned to match the lock body of the battery pack so that the airflow from the nozzle 31 can cover the lock body area of ​​the battery pack, thereby blowing away contaminants on the lock body of the battery pack, avoiding the problem of battery replacement failure. Moreover, the cleaning of contaminants by blowing air has a large coverage area and is not limited by the specifications and shape of the battery pack, which has good applicability and helps to ensure the cleaning effect.

[0062] For example, the cleaning mechanism 30 also includes a valve. The air intake device is connected to the air pipe 32 via the valve. The air intake device is used to generate high-pressure gas to supply air to the air pipe 32 and the nozzle 31. The valve is used to control the air passage between the air intake device and the air pipe 32. The blowing control of the nozzle 31 can be realized through the valve.

[0063] Optionally, an air compressor may be used as the air intake device.

[0064] Optionally, the valve may be a solenoid valve.

[0065] When the battery pack needs to be cleaned, the control valve enables the nozzle 31 to blow air multiple times in a certain order, which can avoid the airflow between two or more nozzles 31 from interfering with each other and affecting the cleaning effect, so that the contaminants on the battery pack can be cleaned.

[0066] Optionally, when the number of nozzles 31 is set to two or more, the cleaning mechanism 30 also includes an air distribution block, which is used to connect the air intake device and the air pipe 32 to distribute the high-pressure gas generated by the air intake device to different nozzles 31.

[0067] In one embodiment, such as Figure 1 As shown, the battery pack cleaning unit proposed in this utility model also includes a guide mechanism 40, which is disposed in the receiving cavity 11. The guide mechanism 40 is used to make it easy for the battery pack to enter the receiving cavity 11 through the opening and to make it easy to remove the battery pack from the receiving cavity 11.

[0068] For example, such as Figure 1 As shown, the guiding mechanism 40 includes a first guide roller 41 and / or a second guide roller 42. The first guide roller 41 is located at the bottom of the receiving cavity 11 and is used to contact the bottom of the battery pack and play a guiding role. The second guide roller 42 is located on the side of the receiving cavity 11 and is used to contact the side of the battery pack and play a guiding role.

[0069] In one embodiment, combined with Figure 1 and Figure 5The battery pack cleaning unit proposed in this utility model also includes a collection mechanism 50, which includes a housing 51. The housing 51 is installed on one side of the housing 10 and is connected to the receiving cavity 11. The housing 51 is used to collect contaminants that fall off the battery pack during the cleaning process.

[0070] For example, the collection mechanism 50 also includes a drain pipe 52 and a vacuuming device. The drain pipe 52 is installed on the housing 51 and communicates with the interior of the housing 51. The drain pipe 52 is used to connect the vacuuming device, which can suck away lighter or smaller pollutants collected inside the housing 51 through the drain pipe 52. The remaining large pollutants will accumulate at the bottom of the housing 51, and the staff can clean the inside of the housing 51 regularly.

[0071] For example, the housing 51 is installed at the bottom of the housing 10, and contaminants falling into the receiving cavity 11 can fall into the housing 51 under the action of gravity. Optionally, the housing 51 is detachably installed at the bottom of the housing 10 by means of screws, and the staff can remove the housing 51 to clean the contaminants collected in the housing 51.

[0072] For example, the housing 51 is fixedly mounted to the bottom of the housing 10, and the housing 51 includes at least one movable plate configured to be removable to expose the interior of the housing 51, allowing workers to remove the movable plate to clean the contaminants collected inside the housing 51.

[0073] Optionally, the movable plate can be detachably connected by screws, or installed by push-pull.

[0074] Understandably, the enclosure 51 may include a movable plate, a drain pipe 52, and a dust collection device to facilitate the treatment of contaminants inside the enclosure 51.

[0075] Reference Figure 1 The present invention also proposes a battery rack, including a rack body 60, the rack body 60 including at least one of the aforementioned battery pack cleaning units.

[0076] When the battery pack does not need cleaning, the receiving cavity 11 only serves as a storage space for the battery pack. When the receiving cavity 11 is equipped with a protective element 12, and the protective element 12 is a water and electricity plug, the battery pack can be charged in the receiving cavity 11. The adjustment mechanism 20 can keep the opening open as needed to facilitate the removal and placement of the battery pack. When the battery pack needs cleaning, it can be cleaned by the cleaning mechanism 30 in the receiving cavity 11.

[0077] In an example scheme, such as Figure 1As shown, the frame 60 also includes at least one storage area 61 for accommodating battery packs. More specifically, battery packs that do not require cleaning are placed in the storage area 61, while battery packs that require cleaning are sent into the receiving cavity 11 for cleaning. The housing 10, in conjunction with the adjustment mechanism 20, can prevent contaminants from spreading into the storage area 61 during the cleaning process and is less likely to contaminate other equipment within the battery swapping station.

[0078] Understandably, the aforementioned battery packs that do not require cleaning can be battery packs that have been tested and found to be free of contaminants after battery swapping, or battery packs that have undergone cleaning treatment.

[0079] For example, the storage area 61 is equipped with a water and electricity plug for use with a charging device to charge the battery pack stored therein.

[0080] For example, the storage area 61 and the aforementioned battery pack cleaning unit are distributed vertically on the frame 60, and the battery pack cleaning unit is located at the bottom of the frame 60. This arrangement can make reasonable use of the bottom space of the frame 60 and reduce investment costs.

[0081] When arranging the battery pack cleaning unit on the frame 60, refer to... Figure 1 The shell 10 is connected to the frame 60. More specifically, the top plate 101, the bottom plate 102 and the side plate 103 are connected to the frame 60.

[0082] When installing the adjustment mechanism 20, refer to Figure 3 The guide member 23 is provided with a mounting seat 25, which is used to install the guide member 23 onto the frame 60.

[0083] For example, such as Figure 3 As shown, the mounting base 25 includes a first mounting piece 251 and a second mounting piece 252, which are connected together. The first mounting piece 251 is connected to the guide member 23, and the second mounting piece 252 is connected to the frame 60.

[0084] Optionally, the first mounting plate 251 and the second mounting plate 252 are arranged vertically.

[0085] Optionally, the first mounting plate 251 is detachably connected to the guide member 23 by screwing, and the second mounting plate 252 is detachably connected to the frame 60 by screwing.

[0086] Optionally, such as Figure 3 As shown, two mounting bases 25 are distributed on the guide member 23 along the third direction.

[0087] Optionally, when the battery pack cleaning unit of this utility model is installed on the frame 60, the adjustment mechanism 20 is configured to include a first sealing plate 21 and a second sealing plate 22, and both the first sealing plate 21 and the second sealing plate 22 are slidably fitted with the guide member 23. When the opening is in the open state, the first sealing plate 21 and the second sealing plate 22 overlap. This configuration can save space occupied by the frame 60 in the third direction.

[0088] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pack cleaning unit, characterized in that, The device includes a housing (10) and an adjustment mechanism (20). The housing (10) includes a receiving cavity (11) and an opening. The receiving cavity (11) is used to receive a battery pack. The opening communicates with the receiving cavity (11). The adjustment mechanism (20) is located at the opening and is configured to open and close the opening. The receiving cavity (11) is provided with a cleaning mechanism (30) for cleaning the battery pack.

2. The battery pack cleaning unit according to claim 1, characterized in that, The adjustment mechanism (20) includes a first sealing plate (21) and a guide (23). The guide (23) is disposed on both sides of the first sealing plate (21) in a first direction. The two ends of the first sealing plate (21) in the first direction are movably connected to the guide (23) so that the first sealing plate (21) can move relative to the guide (23) in a third direction to open or close the opening.

3. The battery pack cleaning unit according to claim 2, characterized in that, It also includes a second sealing plate (22), the two ends of the second sealing plate (22) in the first direction are fixedly connected or movably connected to the guide member (23), the first sealing plate (21) and the second sealing plate (22) are distributed along the second direction, and the first sealing plate (21) and the second sealing plate (22) are slidably fitted, and the first sealing plate (21) can move relative to the second sealing plate (22) in the third direction.

4. The battery pack cleaning unit according to claim 3, characterized in that, A guide portion is provided between the first sealing plate (21) and the second sealing plate (22). The guide portion includes a groove (26) and a mating part (27). The groove (26) is opened on one of the first sealing plate (21) and the second sealing plate (22). The mating part (27) protrudes from the other and is accommodated in the groove (26) and slides with the groove (26).

5. The battery pack cleaning unit according to claim 1, characterized in that, The cavity (11) is provided with a protective element (12), which cooperates with the water and electricity interface on the battery pack to protect the water and electricity interface during the cleaning process.

6. The battery pack cleaning unit according to claim 1, characterized in that, It also includes a guide mechanism (40) disposed in the receiving cavity (11) for making it easy for the battery pack to enter the receiving cavity (11) through the opening.

7. The battery pack cleaning unit according to claim 1, characterized in that, It also includes a collection mechanism (50), which includes a housing (51) mounted on one side of the housing (10) and the interior of the housing (51) is in communication with the receiving cavity (11). The housing (51) is used to collect contaminants on the battery pack.

8. The battery pack cleaning unit according to claim 7, characterized in that, The housing (51) is configured to include at least one removable movable plate, and / or, the housing (51) is equipped with a pipe (52), one end of which communicates with the interior of the housing (51) and the other end of which is connected to a vacuum cleaner.

9. A battery holder, characterized in that, Includes a frame (60), which includes at least one battery pack cleaning unit as described in any one of claims 1 to 8.

10. The battery holder according to claim 9, characterized in that, The frame (60) also includes at least one storage area (61) for accommodating a battery pack.

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