Battery shell, battery pack and electric equipment

Abstract

The invention discloses a battery shell, a battery pack and electric equipment, and relates to the technical field of energy storage devices. The battery shell comprises a shell body, a treading assembly and a ladder assembly, the shell body is provided with a first side wall and a second side wall which are opposite, the first side wall is used for installing a battery power distribution unit of the battery pack, and the second side wall is connected with the ladder assembly; the treading assembly is installed at the top end of the shell body and comprises a pedal which is located above the shell body and spaced from the shell body. The ladder assembly comprises a ladder plate located between the top end and the bottom end of the shell body, the ladder plate is used for providing treading support, and the top end and the bottom end of the shell body are opposite in the height direction of the battery shell. According to the battery shell, the battery pack and the electric equipment disclosed by the invention, the maintenance convenience of the battery pack can be improved, and battery cell damage caused by standing of maintenance personnel is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage devices, and in particular to a battery casing, a battery pack, and an electrical device. Background Art

[0002] Some equipment (such as commercial vehicles) has high power requirements, so the battery packs they use are usually large. In some battery pack maintenance scenarios, such as when the BDU (Battery Distribution Unit) is damaged, maintenance personnel usually need to use a long ladder to climb to the top of the battery pack and then step on the top cover of the battery pack to perform maintenance due to limited operating space and the layout of the BDU. However, this may cause the top cover to deform, thereby damaging the battery cells inside the battery pack and affecting the battery pack's function. Summary of the Invention

[0003] In view of this, the present application provides a battery casing, a battery pack and an electrical device, which can improve the maintenance convenience of the battery pack and avoid damage to the battery cells caused by the maintenance personnel's standing position.

[0004] This application specifically adopts the following technical solutions:

[0005] In one aspect, an embodiment of the present application provides a battery housing, the battery housing comprising a housing body, a step assembly, and a ladder assembly;

[0006] The shell body has a first side wall and a second side wall opposite to each other, the first side wall is used to install the battery distribution unit of the battery pack, and the second side wall is connected to the ladder assembly;

[0007] The pedal assembly is mounted on the top of the shell body, and the pedal assembly includes a pedal located above the shell body and spaced apart from the shell body;

[0008] The ladder assembly includes a ladder plate located between a top end and a bottom end of the shell body, the ladder plate being used to provide stepping support, wherein the top end and the bottom end of the shell body are opposite to each other in a height direction of the battery housing.

[0009] Optionally, the shell body includes a box frame and an upper cover plate, and the upper cover plate is sealed and connected to the top end of the box frame;

[0010] The pedal assembly further comprises a support member connected to the top end of the box frame. The pedal is connected to an end of the support member away from the box frame, so that a space is provided between the pedal and the upper cover plate.

[0011] Optionally, the support member includes at least one of a Z-shaped bracket and a U-shaped bracket;

[0012] The Z-shaped bracket includes a first plate, a second plate, and a third plate that are bent and connected in sequence, the first plate and the third plate being bent to opposite sides relative to the second plate, the first plate being connected to the box frame, and the third plate being connected to the pedal;

[0013] The U-shaped bracket includes a fourth plate, a fifth plate and a sixth plate which are bent and connected in sequence. The fourth plate and the sixth plate are bent to the same side of the fifth plate. The fourth plate is connected to the box frame, and the sixth plate is connected to the pedal.

[0014] Optionally, the Z-shaped bracket and the U-shaped bracket are respectively located on two opposite sides of the box frame, and both the Z-shaped bracket and the U-shaped bracket extend along the edge of the box frame.

[0015] Optionally, the opposite sides of the second plate are obliquely connected to the first plate and the third plate respectively, wherein the third plate is bent relative to the second plate toward a side away from the U-shaped bracket; along the height direction of the battery housing, the first plate and the third plate have a spacing.

[0016] Optionally, the opening direction of the U-shaped bracket is toward the Z-shaped bracket; and / or,

[0017] Along the opening direction of the U-shaped bracket, the width of the fourth plate is smaller than the width of the sixth plate; and / or,

[0018] The fifth plate is vertically connected to the fourth plate and the sixth plate respectively.

[0019] Optionally, the pedal is an uneven wave-shaped structure, wherein: a plurality of openings are provided at intervals on the protruding section of the pedal, and / or a buffer is provided on the concave section of the pedal;

[0020] The recessed section is closer to the shell body than the protruding section.

[0021] Optionally, the distance between the pedal and the shell body is greater than or equal to 10 mm.

[0022] Optionally, the ladder assembly further comprises a fixing plate, a plate surface of which is in contact with the second side wall;

[0023] The fixing plate is detachably connected to the second side wall; and / or,

[0024] The fixing plate is detachably connected to the ladder plate, wherein a plane where a plate surface of the fixing plate is located intersects with a plane where a plate surface of the ladder plate is located.

[0025] Optionally, the ladder assembly further comprises an anti-slip pad and at least two spacers;

[0026] The at least two gaskets are arranged at intervals on the plate surface of the ladder plate;

[0027] The anti-slip pad is located on a side of the at least two gaskets away from the ladder plate, and the anti-slip pad, the gasket and the ladder plate are fixedly connected in sequence.

[0028] Optionally, the surface of the anti-slip pad away from the ladder plate is uneven; and / or the thickness of the anti-slip pad is not less than 20 mm.

[0029] Another aspect of an embodiment of the present application provides a battery pack, which includes the battery casing described in the above aspect, and a battery cell module arranged inside the battery casing.

[0030] Another aspect of an embodiment of the present application provides an electrical device, which includes a device body and the battery pack described in the previous aspect, and the battery pack is used to supply power to the device body.

[0031] The battery housing provided in the embodiments of the present application has a ladder assembly provided on the side wall of its housing. When performing maintenance on the battery pack, maintenance personnel can easily climb to the top of the battery housing via the ladder board of the ladder assembly, thereby improving the convenience of battery maintenance. In addition, a pedal assembly for standing is provided at the top of the housing of the battery housing. The pedal of the pedal assembly is spaced apart from the housing. Therefore, compared with the situation in the related art where maintenance personnel stand directly on the top of the housing, the solution of the embodiments of the present application can prevent the maintenance personnel's weight from causing overpressure deformation of the top of the housing, thereby avoiding the deformation and damage of the battery cells caused by this. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0033] Figure 1 This is a schematic structural diagram of a battery housing provided in an embodiment of the present application;

[0034] Figure 2 is a side view of a battery housing provided in an embodiment of the present application;

[0035] Figure 3 This is a schematic structural diagram of a Z-shaped bracket provided in an embodiment of the present application;

[0036] Figure 4 This is a schematic structural diagram of a U-shaped bracket provided in an embodiment of the present application;

[0037] Figure 5 This is a schematic diagram of the front structure of a pedal provided in an embodiment of the present application;

[0038] Figure 6 yes Figure 5 A schematic diagram of the back structure of the pedal shown;

[0039] Figure 7 This is an exploded view of a ladder assembly provided in an embodiment of the present application.

[0040] Reference numerals:

[0041] 1. Shell body; 11. First side wall; 12. Second side wall; 13. Box frame; 14. Upper cover;

[0042] 2. Pedal assembly; 21. Pedal; 211. Protruding section; 212. Opening; 213. Recessed section; 214. Buffer; 22. Support member; 221. Z-shaped bracket 221; 2211. First plate; 2212. Second plate; 2213. Third plate; 222. U-shaped bracket; 2221. Fourth plate; 2222. Fifth plate; 2223. Sixth plate;

[0043] 3. Ladder assembly; 31. Ladder board; 32. Fixing plate; 33. Anti-slip pad; 34. Gasket;

[0044] 4. First fastener; 5. Second fastener; 6. Third fastener; 7. Fifth fastener;

[0045] 100. Battery distribution unit.

[0046] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0048] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. 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 this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0049] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0050] The embodiment of the present application provides a battery housing, such as Figure 1 As shown, the battery housing includes a shell body 1, a step assembly 2 and a ladder assembly 3.

[0051] The shell body 1 is a closed structure with a hollow interior, and the battery cell module can be accommodated inside the shell body 1. Figure 1 As shown, the housing body 1 has a first side wall 11 and a second side wall 12 opposite to each other, wherein the first side wall 11 is used to install the battery distribution unit BDU 100 of the battery pack, and the second side wall 12 is connected to the ladder assembly 3.

[0052] The ladder assembly 3 includes a ladder plate 31 located between the top end 13 and the bottom end 14 of the housing 1. The ladder plate 31 is used to provide a stepping support. Users (such as maintenance personnel) can climb to the top of the battery pack by stepping on the ladder plate 31, thereby improving the maintenance convenience of the battery pack.

[0053] The pedal assembly 2 is mounted on the top 13 of the housing 1 and includes a pedal 21 located above and spaced apart from the housing 1. Once a user reaches the top of the battery pack, they can stand on pedal 21 to repair the BDU, thus preventing damage to the housing 1 caused by the user's standing position during repair.

[0054] Generally speaking, the first side wall 11 and the second side wall 12 of the shell body 1 are arranged opposite to each other in the horizontal direction, and the top end 13 and the bottom end 14 of the shell body 1 are arranged opposite to each other in the height direction of the battery shell, wherein the horizontal direction is perpendicular to the height direction of the battery shell.

[0055] In summary, the battery housing provided in the embodiment of the present application has a ladder assembly 3 disposed on the side wall of its housing body 1. Compared to the related art solution where maintenance personnel need to use a traditional bulky ladder to climb to the top of the battery pack, the solution of the embodiment of the present application can easily climb to the top of the battery housing by stepping on the ladder plate 31, thereby improving the convenience of battery maintenance and saving the storage space of the traditional ladder. Moreover, the traditional ladder has an unstable center of gravity and requires independent support, which poses a risk of slipping. In contrast, the solution of the embodiment of the present application sets the ladder plate 31 directly on the housing body 1, forming a stable fulcrum and improving safety. Furthermore, the top 13 of the housing body 1 of the battery housing is provided with a step assembly 2 for standing on. The pedal 21 of the step assembly 2 is spaced apart from the housing body 1. Therefore, compared to the related art solution where maintenance personnel directly stand on the upper cover of the battery pack to perform maintenance, the solution of the embodiment of the present application can prevent the maintenance personnel's weight from causing overpressure deformation of the housing body 1, thereby avoiding the resulting deformation and damage of the battery cells, and extending the service life of the battery pack and battery housing.

[0056] In some embodiments of the present application, Figure 1 As shown, the battery housing 1 includes a frame 13, an upper cover 14, and a bottom guard plate (not shown). The upper cover 14 is sealed to the top 13 of the frame 13, and the bottom guard plate is sealed to the bottom 14 of the frame 13, thereby forming a sealed structure for the battery housing as a whole. The first side wall 11 and the second side wall 12 of the battery housing 1 are respectively formed by the opposite side walls of the frame 13; the upper cover 14 and the bottom guard plate are arranged opposite each other.

[0057] like Figure 2 As shown, the pedal assembly 2 further includes a support member 22, through which the pedal 21 is connected and fixed to the housing body 1. Specifically, the support member 22 is connected to the top end 13 of the box frame 13, and the pedal 21 is connected to the end of the support member 22 away from the box frame 13, so that there is a gap between the pedal 21 and the upper cover 14.

[0058] In some embodiments, the support member 22 can be fixedly connected to the top end 13 of the box frame 13 by the first fastener 4. For example, Figure 3 and Figure 4 As shown, a first fixing hole (not shown in the figure) is provided on the support member 22, and a second fixing hole (not shown in the figure) is provided on the top 13 of the box frame 13. The first fastener 4 is a bolt, which passes through the first fixing hole and the second fixing hole to fix the support member 22 on the box frame 13.

[0059] Optionally, a third fixing hole (not shown in the figure) can be provided on the upper cover 14, and the bolts pass through the first fixing hole, the third fixing hole and the second fixing hole in sequence, so that the support member 22, the upper cover 14 and the box frame 13 are fixedly connected together.

[0060] The fasteners are used for connection, which is simple and convenient to assemble and has good reliability. At the same time, in order to ensure the sealing of the battery shell, a sealing structure such as a sealing gasket or a sealant can be provided at the connection of the above components.

[0061] In some embodiments, the pedal 21 can be connected to the support member 22 via the second fastener 5. For example, Figure 3 and Figure 4 As shown, a fourth fixing hole (not shown in the figure) is provided on the support member 22, a fifth fixing hole (not shown in the figure) is provided on the pedal 21, and the second fastener 5 is a bolt, which passes through the fourth fixing hole and the fifth fixing hole to fix the pedal 21 on the support member 22.

[0062] In some embodiments of the present application, the support member 22 includes Figure 3 The Z-shaped bracket 221 shown and Figure 4 At least one of the U-shaped brackets 222 shown.

[0063] In some embodiments, as Figure 2 As shown, the Z-shaped bracket 221 and the U-shaped bracket 222 are respectively located on opposite sides of the box frame 13, and both the Z-shaped bracket 221 and the U-shaped bracket 222 extend along the edge of the box frame 13. In other words, the length direction of the Z-shaped bracket 221 is parallel to the edge of the side on which it is located on the box frame 13, and the length direction of the U-shaped bracket 222 is parallel to the edge of the side on which it is located on the box frame 13.

[0064] like Figure 3 As shown, the Z-shaped bracket 221 includes a first plate 2211, a second plate 2212, and a third plate 2213 that are bent and connected in sequence. The first plate 2211 and the third plate 2213 are bent to opposite sides relative to the second plate 2212. The first plate 2211 can be connected to the box frame 13 via a first fastener 4, and the third plate 2213 can be connected to the pedal 21 via a second fastener 5. Optionally, the surface of the first plate 2211 can be parallel to the surface of the third plate 2213.

[0065] Generally speaking, the Z-shaped bracket 221 can provide multiple connection points and support points between the box frame 13 and the pedal 21 through the first plate 2211 and the third plate 2213, which can effectively disperse the pressure, avoid stress concentration, and have high vibration resistance. Figure 3 As shown, a plurality of first fixing holes and fourth fixing holes are provided on the Z-shaped bracket 221 , a first fastener 4 is installed through each first fixing hole, and a second fastener 5 is installed through each fourth fixing hole.

[0066] In some embodiments of the present application, a spacing is provided between the first plate 2211 and the third plate 2213 along the height of the battery housing. This spacing is the distance between the housing frame 13 and the pedal 21, and the size of this spacing is determined and adjusted by the width of the second plate 2212. By providing a spacing between the first plate 2211 and the third plate 2213, the pedal 21 can be positioned away from the upper cover 14 of the housing body 1, thereby providing a certain amount of space for the pedal 21 to collapse. This reduces the probability of the deformed pedal 21 damaging the upper cover 14 of the housing body 1, even if the pedal 21 is deformed by a user standing on it.

[0067] Optionally, the distance between the pedal 21 and the housing 1 is greater than or equal to 10 mm. Testing has shown that in this case, the pedal 21 has sufficient space to collapse after deformation and does not contact the upper cover 14 of the housing 1. This prevents damage to the upper cover 14 and, in turn, avoids damage to the battery modules within the housing 1, thereby ensuring the performance and service life of the battery pack.

[0068] See also Figure 2 The second plate 2212 is obliquely connected to the first plate 2211 and the third plate 2213 on opposite sides, and the third plate 2213 is bent relative to the second plate 2212 toward the side away from the U-shaped bracket 222. That is, horizontally, the first plate 2211 is closer to the center of the upper cover 14 than the third plate 2213. In this embodiment of the present application, the second plate 2212 in the Z-shaped bracket 221 is designed to be tilted to accommodate the placement requirements of the pedal 21. The pedal 21 needs to extend partially beyond the first sidewall 11 of the housing 1 so that a user standing on the pedal 21 can access the BDU for maintenance. Therefore, this embodiment of the present application uses the Z-shaped bracket 221 as the support member 22 on the side near the first sidewall 11, and utilizes the bending angle of the second plate 2212 to accommodate these complex installation requirements, thereby also supporting the portion of the pedal 21 extending beyond the first sidewall 11.

[0069] Optionally, the Z-shaped bracket 221 is an integrally formed structure with high strength, which can provide a good supporting effect for the pedal 21 .

[0070] like Figure 4 As shown, the U-shaped bracket 222 includes a fourth plate 2221, a fifth plate 2222, and a sixth plate 2223 that are bent and connected in sequence. The fourth plate 2221 and the sixth plate 2223 are bent to the same side of the fifth plate 2222. The fourth plate 2221 can be connected to the box frame 13 via a first fastener 4, and the sixth plate 2223 can be connected to the pedal 21 via a second fastener 5. Optionally, the plate surface of the fourth plate 2221 is parallel to the plate surface of the sixth plate 2223.

[0071] Generally speaking, the U-shaped bracket 222 has a simple structure and can provide multiple connection points and support points between the box frame 13 and the pedal 21 through the fourth plate 2221 and the sixth plate 2223. The load is stable and can disperse the pressure well to avoid stress concentration. At the same time, due to its open structure, it has high vibration resistance. By designing the width of the fifth plate 2222, the distance between the box frame 13 and the pedal 21 can be adjusted.

[0072] In some embodiments of the present application, Figure 2 As shown, the opening direction of the U-shaped bracket 222 is toward the side where the center of the upper cover plate 14 is located, that is, toward the Z-shaped bracket 221. This can improve the lateral stability of the U-shaped bracket 222. Because the user will generate lateral (i.e., horizontal) friction when walking on the pedal 21, or the device may shake due to lateral impact force generated when it is bumped or vibrated, which may cause the pedal 21 to be unstable and not firm enough in the horizontal direction. In this embodiment, by making the opening direction of the U-shaped bracket 222 toward the Z-shaped bracket 221, that is, the opening direction is parallel to the horizontal direction, it can well resist the impact force or friction force in the horizontal direction, making the pedal 21 more stable and firm.

[0073] Along the opening direction of the U-shaped bracket 222, the width of the fourth plate 2221 is smaller than the width of the sixth plate 2223. This increases the contact area between the U-shaped bracket 222 and the pedal 21, quickly dissipates and evenly distributes the pressure on the pedal 21, and reduces the probability of deformation and damage to the pedal 21.

[0074] In addition, the fifth plate 2222 of the U-shaped bracket 222 is vertically connected to the fourth plate 2221 and the sixth plate 2223 respectively. In this way, the fifth plate 2222 can provide support for the pedal 21 in the height direction of the battery casing, so that the U-shaped bracket 222 has good longitudinal bearing capacity, can withstand greater downward pressure from the pedal 21, and prevent the pedal 21 from deforming.

[0075] Optionally, the U-shaped bracket 222 is an integrally formed structure with high strength, which can provide a better supporting effect on the pedal 21 .

[0076] In some embodiments of the present application, Figure 5 and Figure 6As shown, the pedal 21 has an uneven wavy structure, which includes a plurality of protruding sections 211 and a plurality of recessed sections 213. The protruding section 211 refers to the portion of the plate section of the pedal 21 away from the shell body 1 in the height direction of the battery shell; the recessed section 213 refers to the portion of the plate section of the pedal 21 close to the shell body 1 in the height direction of the battery shell. In other words, the recessed section 213 is closer to the shell body 1 than the protruding section 211. Along the length direction or width direction of the pedal 21, a plurality of protruding sections 211 and a plurality of recessed sections 213 are alternately arranged. By designing the pedal 21 into a wavy structure, while improving the overall strength of the pedal 21, it also provides an installation position for the pedal 21 and the support member 22.

[0077] In some embodiments, along the alternating arrangement direction of the plurality of protruding segments 211 and the plurality of recessed segments 213, the width of each protruding segment 211 is greater than the width of each recessed segment 213. Because a user standing on the pedal 21 is actually standing on the protruding segments 211, designing the protruding segments 211 to be relatively large in width increases the contact area between the user's shoe sole and the pedal 21, thereby achieving a non-slip effect and preventing the user from falling.

[0078] like Figure 5 As shown, each protruding section 211 of the pedal 21 is provided with a plurality of openings 212 at intervals. This not only reduces the weight of the pedal 21, but also provides an anti-slip function, preventing the user from slipping and falling when stepping on the pedal 21. Furthermore, the openings 212 also function as drains, preventing water from accumulating on the pedal 21.

[0079] like Figure 6 As shown, the recessed section 213 of the pedal 21 is used to connect with the support member 22. Therefore, a buffer member 214 can be provided on the recessed section 213 of the pedal 21. The buffer member 214 is located on the side of the recessed section 213 close to the housing body 1. In this way, when the user steps on the pedal 21, even if the pedal 21 deforms and contacts the upper cover plate 14 of the battery housing, the presence of the buffer member 214 can provide a certain degree of cushioning, thereby preventing damage to the upper cover plate 14 and the battery cell modules inside the battery housing.

[0080] Optionally, the buffer member 214 may be a structural member made of a soft, shock-absorbing material such as a rubber pad or a silicone pad.

[0081] In some embodiments of the present application, Figure 1 As shown, the ladder assembly 3 also includes a fixing plate 32, and the ladder plate 31 is fixedly connected to the second side wall 12 of the shell body 1 through the fixing plate 32, wherein the plate surface of the fixing plate 32 is in contact with the second side wall 12 to increase the connection area between the fixing plate 32 and the second side wall 12 and ensure the connection reliability.

[0082] Optionally, at least a portion of the ladder assembly 3 can be folded or disassembled relative to the shell body 1 to facilitate storage and arrangement of the ladder assembly 3. For example, the fixing plate 32 can be removably connected to the second side wall 12 via a third fastener 6; and / or, the fixing plate 32 can be removably connected to the ladder board 31 via a fourth fastener, wherein the plane of the fixing plate 32 intersects the plane of the ladder board 31, thereby facilitating a user stepping on the ladder board 31. Exemplarily, at least one of the third fastener 6 and the fourth fastener can be a bolt. Fixing holes (not shown) for the passage of bolts can be provided at corresponding locations on the second side wall 12 of the shell body 1, the fixing plate 32, and the ladder board 31.

[0083] In some examples, when the fixing plate 32 is detachably connected to the second side wall 12 of the shell body 1 , the fixing plate 32 and the ladder plate 31 may be an integrally formed structure, thereby ensuring the pressure-bearing capacity of the ladder plate 31 .

[0084] In some embodiments of the present application, Figure 1 and Figure 7 As shown, the ladder assembly 3 also includes an anti-slip pad 33 and at least two gaskets 34, and the at least two gaskets 34 are arranged at intervals on the board surface of the ladder plate 31; the anti-slip pad 33 is located on the side of the at least two gaskets 34 away from the ladder plate 31, and the anti-slip pad 33, the gasket 34 and the ladder plate 31 are fixedly connected in sequence.

[0085] The gasket 34 can be, for example, a metal gasket 34, which has a long service life. On the one hand, the gasket 34 is used to install the anti-slip pad 33, ensuring the structural strength of the ladder 31 at the installation point; on the other hand, the gasket 34 is used to create a gap between the ladder 31 and the anti-slip pad 33, preventing corrosion caused by water accumulation between the ladder 31 and the anti-slip pad 33.

[0086] In one example, the anti-slip pad 33, the washer 34, and the ladder plate 31 are sequentially fixedly connected by a fifth fastener 7. The fifth fastener 7 can be a bolt. The anti-slip pad 33, the washer 34, and the ladder plate 31 can be provided with fixing holes (not shown) for the bolts to pass through at corresponding locations.

[0087] In some embodiments of the present application, the surface of the anti-slip pad 33 away from the step tread 31 is uneven, and / or the thickness of the anti-slip pad 33 is not less than 20 mm. This ensures that the anti-slip pad 33 effectively prevents slipping and prevents the user from slipping when stepping on the anti-slip pad 33.

[0088] An embodiment of the present application further provides a battery pack, which includes the battery housing described in the above embodiment and a battery cell module arranged inside the battery housing.

[0089] The battery pack provided in the embodiment of the present application has a ladder assembly 3 provided on the side wall of the battery housing body 1. Compared to the related art solution where maintenance personnel need to use a traditional bulky ladder to climb to the top of the battery pack, the solution of the present application embodiment can easily climb to the top of the battery housing by stepping on the ladder plate 31, thereby improving the convenience of battery maintenance and saving the storage space of the traditional ladder. Furthermore, the solution of the embodiment of the present application sets the ladder plate 31 directly on the housing body 1, forming a stable fulcrum and improving safety. Furthermore, the top 13 of the battery housing body 1 is provided with a step assembly 2 for standing on. The pedal 21 of the step assembly 2 is spaced apart from the housing body 1. Therefore, compared with the related art solution where maintenance personnel directly stand on the upper cover of the battery pack to perform maintenance, the solution of the embodiment of the present application can prevent the maintenance personnel's weight from causing overpressure deformation of the housing body 1, thereby avoiding the resulting deformation and damage of the battery cells, and extending the service life of the battery pack.

[0090] An embodiment of the present application further provides an electrical device, which includes a device body and the battery pack of the above aspect, and the battery pack is used to supply power to the device body.

[0091] The electrical device provided in the embodiment of the present application has a ladder assembly 3 disposed on the side wall of its battery pack. Compared to conventional solutions in the related art where maintenance personnel must use a bulky, long ladder to reach the top of the battery pack, the solution in the embodiment of the present application allows maintenance personnel to easily climb to the top of the battery housing by simply stepping on the ladder plate 31. This improves the convenience of battery pack maintenance and saves storage space for conventional ladders. Furthermore, conventional ladders have an unstable center of gravity and require independent support, posing a risk of slipping. In contrast, the solution in the embodiment of the present application places the ladder plate 31 directly on the housing body 1, forming a stable fulcrum and improving safety. Furthermore, a step assembly 2 for standing is disposed at the top 13 of the housing body 1. The pedal 21 of the step assembly 2 is spaced apart from the housing body 1. Therefore, compared to conventional solutions where maintenance personnel directly stand on the upper cover of the battery pack to perform maintenance, the solution in the embodiment of the present application prevents the maintenance personnel's weight from causing overpressure deformation of the housing body 1, thereby avoiding deformation and damage to the battery cells. This increases the service life of the battery pack and the electrical device, and reduces maintenance costs.

[0092] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the present invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only.

[0093] It should be understood that the present application is not limited to the exact structures described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A battery casing, characterized in that: The battery housing comprises a housing body (1), a stepping assembly (2) and a ladder assembly (3); The housing body (1) has a first side wall (11) and a second side wall (12) opposite to each other, the first side wall (11) being used to install a battery distribution unit (100) of a battery pack, and the second side wall (12) being connected to the ladder assembly (3); The pedal assembly (2) is mounted on the top of the shell body (1), and the pedal assembly (2) includes a pedal (21) located above the shell body (1) and spaced apart from the shell body (1); The ladder assembly (3) comprises a ladder plate (31) located between the top and bottom ends of the shell body (1), and the ladder plate (31) is used to provide stepping support, wherein the top and bottom ends of the shell body (1) are opposite to each other in the height direction of the battery housing.

2. The battery housing according to claim 1, wherein: The shell body (1) comprises a box frame (13) and an upper cover plate (14), and the upper cover plate (14) is sealed and connected to the top end of the box frame (13); The pedal assembly (2) further comprises a support member (22), wherein the support member (22) is connected to the top end of the box frame (13), and the pedal (21) is connected to an end of the support member (22) away from the box frame (13), so that a gap exists between the pedal (21) and the upper cover plate (14).

3. The battery housing according to claim 2, wherein: The support member (22) includes at least one of a Z-shaped bracket (221) and a U-shaped bracket (222); The Z-shaped bracket (221) comprises a first plate (2211), a second plate (2212), and a third plate (2213) which are bent and connected in sequence, the first plate (2211) and the third plate (2213) being bent to opposite sides relative to the second plate (2212), the first plate (2211) being connected to the box frame (13), and the third plate (2213) being connected to the pedal (21); The U-shaped bracket (222) includes a fourth plate (2221), a fifth plate (2222) and a sixth plate (2223) which are bent and connected in sequence, the fourth plate (2221) and the sixth plate (2223) are bent to the same side of the fifth plate (2222), the fourth plate (2221) is connected to the box frame (13), and the sixth plate (2223) is connected to the pedal (21).

4. The battery housing according to claim 3, wherein: The Z-shaped bracket (221) and the U-shaped bracket (222) are respectively located on opposite sides of the box frame (13), and both the Z-shaped bracket (221) and the U-shaped bracket (222) extend along the edge of the box frame (13).

5. The battery housing according to claim 4, wherein: The opposite sides of the second plate (2212) are respectively connected obliquely to the first plate (2211) and the third plate (2213), and the third plate (2213) is bent relative to the second plate (2212) toward a side away from the U-shaped bracket (222); along the height direction of the battery housing, the first plate (2211) and the third plate (2213) have a spacing.

6. The battery housing according to claim 4, wherein: The opening direction of the U-shaped bracket (222) is toward the Z-shaped bracket (221); and / or, Along the opening direction of the U-shaped bracket (222), the width of the fourth plate (2221) is smaller than the width of the sixth plate (2223); and / or, The fifth plate (2222) is vertically connected to the fourth plate (2221) and the sixth plate (2223) respectively.

7. The battery housing according to any one of claims 1 to 6, characterized in that: The pedal (21) is an uneven wavy structure, wherein: a plurality of openings (212) are arranged at intervals on the protruding section (211) of the pedal (21), and / or a buffer member (214) is provided on the recessed section (213) of the pedal (21); The recessed section (213) is closer to the shell body (1) than the protruding section (211).

8. The battery housing according to claim 1, wherein: The distance between the pedal (21) and the shell body (1) is greater than or equal to 10 mm.

9. The battery housing according to claim 1, wherein: The ladder assembly (3) further includes a fixing plate (32), the plate surface of the fixing plate (32) being in contact with the second side wall (12); The fixing plate (32) is detachably connected to the second side wall (12); and / or, The fixing plate (32) is detachably connected to the ladder plate (31), wherein the plane where the plate surface of the fixing plate (32) is located intersects with the plane where the plate surface of the ladder plate (31) is located.

10. The battery housing according to claim 1, wherein: The ladder assembly (3) further comprises an anti-slip pad (33) and at least two spacers (34); The at least two gaskets (34) are arranged at intervals on the plate surface of the ladder plate (31); The anti-slip pad (33) is located on a side of the at least two gaskets (34) away from the ladder plate (31), and the anti-slip pad (33), the gasket (34) and the ladder plate (31) are fixedly connected in sequence.

11. The battery housing according to claim 10, wherein: The surface of the anti-slip pad (33) away from the ladder plate (31) is uneven; and / or the thickness of the anti-slip pad (33) is not less than 20 mm.

12. A battery pack, characterized in that: The battery pack includes the battery casing according to any one of claims 1 to 11, and a battery cell module arranged inside the battery casing.

13. An electrical device, characterized in that: The electrical device includes a device body and the battery pack according to claim 12, wherein the battery pack is used to supply power to the device body.

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