Battery pack housing and battery pack

Abstract

The utility model belongs to battery technical field discloses a kind of battery package shell and battery package, a kind of battery package shell, for containing electric core, electric core includes the side surface extending along first direction, second direction, third direction, battery package shell includes box cover and shell body, box cover includes main part and mounting portion, and mounting portion is set around main part;Shell body includes first side plate, second side plate and third side plate, first side plate extends along first direction, second side plate extends along second direction, first side plate, second side plate are connected with mounting portion flange, and first side plate, second side plate and third side plate are enclosed to form the accommodation space for containing electric core;The connecting surface of mounting portion and shell body is at least partially parallel to third direction.Such, the space occupied in horizontal direction when flange connection of box cover and shell body is saved, improve space utilization, so that battery package shell can have more space to accommodate larger electric core, improve battery package electric capacity.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, and in particular to a battery pack housing and a battery pack. Background Technology

[0002] As the sales and ownership of commercial electric vehicles increase, the market demand for battery pack capacity is also gradually increasing.

[0003] In related technologies, the battery pack housing body includes a cover and a lower housing body. The cover adopts a "U"-shaped design and its outer edge is a flange face. The lower housing body also has a flange face at the corresponding position, so that the cover and the lower housing body are connected by flanges to achieve sealing and fixation. The lower housing body is also provided with vertical mounting points to realize the assembly and fixation of the lower housing body and the vehicle body.

[0004] However, the flange surface occupies space in the horizontal direction of the battery pack, and the mounting point occupies space in the vertical direction of the battery pack, resulting in low space utilization of the battery pack casing, limiting the increase in cell volume, and thus making it difficult to improve the overall capacity of the battery pack. Utility Model Content

[0005] The purpose of this utility model is to provide a battery pack housing and a battery pack to solve the problem of low space utilization of the battery pack housing.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] In a first aspect, a battery pack housing for accommodating a battery cell, the battery cell including side surfaces extending along a first direction, a second direction, and a third direction, the battery pack housing comprising: a cover, the cover including a main body and a mounting portion, the mounting portion being disposed around the main body; and a housing body including a first side plate, a second side plate, and a third side plate, the first side plate extending along the first direction, the second side plate extending along the second direction, both the first side plate and the second side plate being flange-connected to the mounting portion, the first side plate, the second side plate, and the third side plate enclosing a accommodating space for accommodating the battery cell; the connection surface between the mounting portion and the housing body is at least partially parallel to a third direction.

[0008] Preferably, at least one connection surface between the mounting part and the housing body is parallel to the third direction, and the other connection surfaces are perpendicular to the third direction; or, all connection surfaces between the mounting part and the housing body are parallel to the third direction.

[0009] Preferably, the main body includes a bent portion that bends toward the housing body, and the mounting portion is correspondingly disposed on the edge of the bent portion. The connection surface between the mounting portion disposed on the bent portion and the housing body is parallel to the third direction.

[0010] Preferably, there are two bending portions, the length direction of the two bending portions is parallel to the first direction, and the two bending portions are positioned corresponding to the first side plate, so that the bending portions are detachably connected to the first side plate through the mounting portion.

[0011] Preferably, the connection surface between the second side plate and the mounting portion is at least partially perpendicular to the third direction, so that the mounting portion is connected to the flange of the second side plate.

[0012] Preferably, the connection surface between the mounting part and the first side plate is disposed on the side wall of the first side plate parallel to the third direction, and the connection surface between the mounting part and the second side plate is disposed on the side wall of the second side plate parallel to the third direction.

[0013] Preferably, the side of the first side plate opposite to the accommodating space is provided with a mounting cavity, and a mounting point is provided in the mounting cavity to restrict the position of the first side plate.

[0014] Preferably, the mounting point is located on the surface of the mounting cavity opposite to the cover.

[0015] Preferably, the battery pack housing further includes a sealing gasket, which is disposed between the cover and the housing body to achieve a sealed connection between the cover and the housing body.

[0016] In a second aspect, a battery pack includes battery cells and a battery pack housing as described above, wherein the battery cells are disposed within the accommodating space.

[0017] The beneficial effects of this utility model are:

[0018] A battery pack housing for accommodating battery cells, each battery cell having side surfaces extending along a first direction, a second direction, and a third direction. The battery pack housing includes a cover and a housing body. The cover includes a main body and a mounting portion, with the mounting portion surrounding the main body. The housing body includes a first side plate, a second side plate, and a third side plate. The first side plate extends along a first direction, and the second side plate extends along a second direction. Both the first and second side plates are detachably connected to the mounting portion. The first, second, and third side plates enclose a space for accommodating the battery cells. The connection surface between the mounting portion and the housing body is at least partially parallel to a third direction.

[0019] In this way, the connection surface between the mounting part and the housing body is at least partially parallel to the third direction, which can reduce the setting of horizontal flange surfaces, improve the space utilization of the housing body in the third direction, make the overall structure of the battery pack housing more compact, avoid occupying more external space during assembly, enable the battery pack to accommodate larger cells in the horizontal direction, increase the overall capacity of the battery pack, provide stable protection for the cells, and improve battery safety. Attached Figure Description

[0020] Figure 1 This is an exploded view of the battery pack casing in related technologies;

[0021] Figure 2 This is a schematic diagram of the battery pack casing in related technologies;

[0022] Figure 3 This is an exploded view of the battery pack casing in Embodiment 1 of this utility model;

[0023] Figure 4 This is a schematic diagram of the box cover in Embodiment 1 of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the shell body in Embodiment 1 of this utility model;

[0025] Figure 6 This is a side view of the shell body in Embodiment 1 of this utility model;

[0026] Figure 7 This is in Embodiment 1 of the present utility model Figure 6 AA diagram;

[0027] Figure 8 This is in Embodiment 1 of the present utility model Figure 7 Enlarged view of point B.

[0028] In the picture:

[0029] 1. Cover; 11. Main body; 111. Bending part; 12. Mounting part; 2. Shell body; 21. First side plate; 211. Mounting cavity; 2111. Mounting point; 22. Second side plate; 23. Third side plate; 24. Accommodation space; 3. Sealing gasket; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0031] In the description of the present utility model, unless otherwise explicitly specified and limited, the terms "connected", "coupled" and "fixed" shall be understood in a broad sense. For example, they may be fixed connection, detachable connection, or integrated into one piece; they may be mechanical connection or electrical connection; they may be directly connected, or indirectly connected through an intermediate medium, they may be internal communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0032] In the present utility model, unless otherwise explicitly specified and limited, a first feature "on" or "under" a second feature may include the first feature and the second feature being in direct contact, and may also include that the first feature and the second feature are not in direct contact but are in contact through another feature therebetween. Moreover, the first feature being "on", "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the horizontal height of the first feature is less than that of the second feature.

[0033] In the description of the present embodiment, the orientation or position relationship terms such as "upper", "lower", "right", etc. are based on the orientation or position relationship shown in the accompanying drawings, which are only for facilitating description and simplifying operation, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meanings.

[0034] Refer to Figure 1 and Figure 2 , in the related art, the longitudinal section of the box cover 1 is in a shape of "ji", and a flange surface of the box cover 1 extends horizontally along the edge of the box cover 1 (not shown in the figure), the connecting surfaces of the shell body 2 and the flange surface of the box cover 1 are all horizontally arranged, which occupies more horizontal space. A cross beam is arranged inside the battery pack shell (not shown in the figure), and a plurality of installation points are arranged on the cross beam, so that the battery pack shell is connected with the vehicle body, which affects the volume of the accommodation space 24, resulting in low overall space utilization of the battery pack shell.

[0035] Embodiment 1

[0036] Refer to Figure 3This utility model provides a battery pack housing for accommodating battery cells. The battery cell includes a side extending along a first direction X, a second direction Y, and a third direction Z. The battery pack housing includes a cover 1 and a housing body 2. The cover 1 includes a main body 11 and a mounting part 12, with the mounting part 12 surrounding the edge of the main body 11. The housing body 2 includes a first side plate 21, a second side plate 22, and a third side plate 23. The first side plate 21 extends along the first direction X, and the second side plate 22 extends along the second direction Y. Both the first side plate 21 and the second side plate 22 are flange-connected to the mounting part 12. The first side plate 21, the second side plate 22, and the third side plate 23 enclose a housing space 24 for accommodating the battery cell. The connection surface between the mounting part 12 and the housing body 2 is at least partially parallel to the third direction Z.

[0037] In this embodiment, the first direction X is the length direction of the battery cell, the second direction Y is the width direction of the battery cell, and the third direction Z is the height direction of the battery cell. Two first side plates 21 and two second side plates 22 are respectively provided. The two first side plates 21 are arranged opposite each other, and the two second side plates 22 are arranged between the two first side plates 21. The third side plate 23 is arranged at the bottom of the battery cell and is fixedly connected to the first side plates 21 and the second side plates 22 to restrict the position of the battery cell. The shape formed by the connection surface between the first side plate 21 and the mounting part 12 and the connection surface between the second side plate 22 and the mounting part 12 is adapted to the shape of the mounting part 12 so that the mounting part 12 can be fitted to the first side plate 21 and the second side plate 22. The flange bolts corresponding to the part of the connection surface between the mounting part 12 and the housing body 2 that is parallel to the third direction Z extend in the horizontal direction.

[0038] Thus, the connection surface between the mounting part 12 and the housing body 2 is at least partially parallel to the third direction Z, which can save the space occupied in the horizontal direction when the cover 1 and the housing body 2 are connected by flanges. That is, it saves the horizontal flange surfaces provided on the cover 1, the first side plate 21 and the second side plate 22, and instead utilizes the space of the housing body 2 in the third direction Z (that is, the vertical direction), making the overall structure of the battery pack housing more compact, avoiding the occupation of more external space during assembly, thereby improving the space utilization rate of the battery pack housing, so that the battery pack housing can have more space in the horizontal direction to accommodate larger battery cells, thereby increasing the overall power of the battery pack; and the cover 1 can provide stable protection for the battery cells, improving the safety of the battery pack.

[0039] It is understandable that the mounting part 12 can also be connected to the first side plate 21 and the second side plate 22 by means of positioning pins, buckles, adhesives, etc., so as to achieve a tight connection between the box cover 1 and the first side plate 21 and the second side plate 22. This will not be listed in detail here.

[0040] See Figure 3In some embodiments, at least one connection surface between the mounting part 12 and the housing body 2 is parallel to the third direction Z, while other connection surfaces are perpendicular to the third direction Z.

[0041] In this embodiment, the mounting part 12 and the housing body 2 have four connecting surfaces, two of which are parallel to the third direction Z and two of which are perpendicular to the third direction Z.

[0042] Thus, by having a connection surface parallel to the third direction Z, the space occupied by the connection surface can be transferred from the horizontal direction to the vertical direction, avoiding excessive space occupation in the horizontal direction. Setting two connection surfaces parallel to the third direction Z can improve the connection stability between the cover 1 and the housing body 2 and improve the space utilization of the battery pack housing.

[0043] It is understandable that the number of connecting surfaces parallel to the third direction Z can be flexibly adjusted according to actual needs. There can be one, three, four, etc., and it is not limited to two. We will not list them in detail here.

[0044] See Figure 4 and Figure 5 In some embodiments, the main body 11 includes a bent portion 111 that bends toward the housing body 2, and a mounting portion 12 is correspondingly disposed on the edge of the bent portion 111. The connection surface between the mounting portion 12 disposed on the bent portion 111 and the housing body 2 is parallel to the third direction Z.

[0045] In this embodiment, the main body 11 also includes a horizontal part. The bent part 111 is integrally formed with the horizontal part and smoothly transitions. The first side plate 21 or the second side plate 22 is provided with flange holes corresponding to the position of the bent part 111. The flange holes are arranged in the horizontal direction so that the mounting part 12 provided on the bent part 111 can be flange connected to the housing body 2, and the flange surface is parallel to the third direction Z.

[0046] Thus, the bending part 111 is connected to the first side plate 21 or the second side plate 22. By setting the connection surface parallel to the third direction Z, the space in the third direction Z can be fully utilized, the direction of the flange connection can be changed, and more space can be provided inside the battery pack housing to facilitate the installation of higher capacity cells. The bending part 111 can improve the connection strength between the cover 1 and the housing body 2 in the horizontal direction and improve the overall structural strength of the battery pack housing.

[0047] It is understood that the bending part 111 can be connected to the first side plate 21, the second side plate 22, or both the first side plate 21 and the second side plate 22. The setting position of the bending part 111 can be adjusted according to actual needs.

[0048] See Figure 4 and Figure 5In some embodiments, two bending portions 111 are provided. The length direction of the two bending portions 111 is parallel to the first direction X. The two bending portions 111 are positioned corresponding to the first side plate 21, so that the bending portions 111 are detachably connected to the first side plate 21 through the mounting portion 12. The connection surface between the second side plate 22 and the mounting portion 12 is at least partially perpendicular to the third direction Z, so that the mounting portion 12 is flange-connected to the second side plate 22.

[0049] In this embodiment, the first side plate 21 has a plurality of flange holes arranged horizontally at intervals on its side wall parallel to the third side Z. The second side plate 22 protrudes from the first side plate 21 on the side opposite to the third side plate 23. The height of the first side plate 21 is less than the height of the second side plate 22, and the two side walls of the second side plate 22 in the second direction Y are flush with the side wall of the first side plate 21 where the flange holes are located, so that the bent part 111 can be connected to the flanges of the first side plate 21 and the second side plate 22 respectively. The side of the second side plate 22 opposite to the third side plate 23 is flush with the side wall of the first side plate 21 where the flange holes are located. The second direction Y is parallel and has multiple flange holes arranged at intervals along the horizontal direction to form a connection surface perpendicular to the third direction Z. That is, the surface of the second side plate 22 protruding from the first side plate 21 is connected to the mounting part 12, and part of the connection surface is parallel to the third direction Z, while part of the connection surface is perpendicular to the third direction Z. Correspondingly, the shape of the battery cell is adapted to the shape of the accommodating space 24 formed by the first side plate 21, the second side plate 22, and the third side plate 23. The longitudinal section of the second side plate 22 and the longitudinal section of the battery cell are "T" shaped structures.

[0050] In this way, the sidewalls of the first side plate 21 and the second side plate 22, as well as the surface facing away from the third side plate 23, can be fully utilized, avoiding the need to additionally set a flange surface in the horizontal direction. This allows the volume of the accommodating space 24 to be increased. The connection surface between the first side plate 21 and the mounting part 12 is flush with the side of the second side plate 22, which can increase the length of the accommodating space 24 in the second direction Y, accommodating larger cells and thus improving the overall capacity of the battery pack.

[0051] It is understood that the two bends 111 can also be set corresponding to the adjacent first side plate 21 and second side plate 22, or they can be set corresponding to the second side plate 22. In this embodiment, the bends 111 are set corresponding to the two first side plates 21 in order to improve the structural strength of the cover 1 in the first direction X and increase the area of ​​the connection surface parallel to the third direction Z, so as to facilitate the flange connection between the cover 1 and the first side plate 21 and the second side plate 22. The setting position of the bends 111 can be adjusted according to actual needs, and will not be listed in detail here.

[0052] See Figures 6 to 8In some embodiments, the side of the first side plate 21 facing away from the accommodating space 24 is provided with a mounting cavity 211, and a mounting point 2111 is provided in the mounting cavity 211 to limit the position of the first side plate 21.

[0053] In this embodiment, the first side plate 21 is detachably connected to the vehicle body by bolts. The bolts are set at the mounting point 2111. The mounting cavity 211 is isolated from the accommodating space 24. The mounting cavity 211 extends along the first direction X. Multiple mounting points 2111 are spaced apart in one mounting cavity 211. Multiple holes (not shown in the figure) are opened on the side wall of the mounting cavity 211 at the position of the mounting point 2111, so that the workers can assemble the bolts to the mounting point 2111 from the outside to fix the battery pack shell to the vehicle body.

[0054] Thus, by placing the mounting cavity 211 on the side of the first side plate 21 facing outward, the space occupied inside the battery pack housing can be reduced, saving space in the third direction Z of the battery pack housing. Compared with the related technology where the mounting point 2111 is placed inside the accommodating space 24, the mounting point 2111 is placed outside the accommodating space 24, which allows more space inside the accommodating space 24 to assemble the battery cells, improving the space utilization and assembly efficiency of the battery pack housing, and increasing the overall power of the battery pack.

[0055] It is understandable that the number and location of installation points 2111 can be adjusted according to actual needs, and will not be listed in detail here.

[0056] See Figure 3 In some embodiments, the mounting point 2111 is located on the surface of the mounting cavity 211 away from the cover 1, that is, the bottom surface of the mounting cavity 211.

[0057] In this embodiment, the connecting surface between the first side plate 21 and the mounting part 12 is located above the mounting cavity 211, and the mounting cavity 211 protrudes from the first side plate 21.

[0058] In this way, assembly interference between the mounting point 2111 and the cover 1 can be avoided, and the space above the mounting cavity 211 can be fully utilized to improve the space utilization rate of the side wall of the first side plate 21. It also avoids setting an additional flange face in the horizontal direction, increases the volume of the accommodating space 24, and enables the battery pack housing to accommodate larger cells, thereby increasing the overall capacity of the battery pack.

[0059] See Figure 3 In some embodiments, the battery pack housing also includes a sealing gasket 3, which is disposed between the cover 1 and the housing body 2 to achieve a sealed connection between the cover 1 and the housing body 2.

[0060] In this embodiment, the shape of the sealing gasket 3 is adapted to the shape of the mounting part 12. The sealing gasket 3 is a strip-shaped annular structure and is connected to the flange of the mounting part 12.

[0061] Thus, by setting the sealing gasket 3, the sealing performance between the cover 1 and the housing body 2 can be improved, thereby improving the sealing performance and safety of the battery pack housing. The shape of the sealing gasket 3 is adapted to the shape of the mounting part 12 and is connected to the flange of the mounting part 12, which facilitates the assembly of the sealing gasket 3 and prevents the sealing gasket 3 from shifting position and affecting the sealing effect.

[0062] See Figure 3 This utility model also provides a battery pack, including a battery cell and a battery pack housing, with the battery cell disposed within an accommodating space 24. In this embodiment, the shape of the accommodating space 24 is adapted to the shape of the battery cell.

[0063] In this way, by utilizing the space of the side of the first side plate 21, the side of the second side plate 22, and the top surface, a connection surface for connection with the flange of the mounting part 12 can be provided, which avoids the need to additionally provide a horizontal flange surface on the cover 1. The mounting cavity 211 is located on the outside of the first side plate 21, which can reduce the occupation of the accommodating space 24, improve the space utilization rate of the battery pack housing, and increase the volume of the accommodating space 24, thereby increasing the volume of the cells that can be accommodated and improving the overall power of the battery pack.

[0064] Example 2

[0065] In Embodiment 2, the same or corresponding components as in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences between Embodiment 2 and Embodiment 1 are described.

[0066] In some embodiments, the connection surfaces of the mounting portion 12 and the housing body 2 are parallel to the third direction Z. That is, the connection surfaces of the mounting portion 12 and the first side plate 21, and the connection surfaces of the mounting portion 12 and the second side plate 22 are parallel to the third direction Z.

[0067] In this embodiment, the bending part 111 is disposed around the horizontal part, and the mounting part 12 is a ring structure parallel to the third direction Z, that is, the box cover 1 is a cuboid structure.

[0068] In this way, the connection surfaces of the mounting part 12 and the housing body 2 are parallel to the third direction Z, which can make full use of the space of the housing body 2 in the third direction Z, without the need to set an additional horizontal flange surface, improve the space utilization of the cover 1, and increase the volume of the accommodating space 24, so that it can accommodate larger battery cells and increase the battery pack capacity.

[0069] It is understandable that the mounting part 12 can also be bent and set on the cover 1 so that the mounting part 12 is parallel to the third direction Z. The extension direction of the connection surface between the mounting part 12 and the housing body 2 can be adjusted according to actual needs, which will not be elaborated here.

[0070] Furthermore, in some embodiments, the connecting surface between the mounting part 12 and the first side plate 21 is disposed on the side wall of the first side plate 21 parallel to the third direction Z, and the connecting surface between the mounting part 12 and the second side plate 22 is disposed on the side wall of the second side plate 22 parallel to the third direction Z.

[0071] In this way, the space between the first side plate 21 and the second side plate 22 in the third direction Z can be utilized to make the battery pack casing more compact, thereby enabling the accommodating space 24 to accommodate larger battery cells and improve the overall capacity of the battery pack.

[0072] It is understandable that the cover 1 can be a horizontal plate structure, with the mounting part 12 bent and set in the horizontal part, so that the mounting part 12 is connected to the flange of the first side plate 21 and the second side plate 22. The cover 1 can also be a cuboid structure with an open bottom, with bent parts 111 set around the horizontal part. Both the mounting part 12 and the bent parts 111 are parallel to the third direction Z, so as to realize the flange connection between the mounting part 12 and the first side plate 21 and the second side plate 22. The specific shape of the cover 1 can be adjusted according to actual needs, as long as the connection surface between the mounting part 12 and the shell body 2 is parallel to the third direction Z. Not much will be listed here.

[0073] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A battery pack housing, characterized in that, For housing a battery cell, the battery cell including sides extending along a first direction (X), a second direction (Y), and a third direction (Z), the battery pack housing includes: A box cover (1), the box cover (1) includes a main body (11) and a mounting part (12), the mounting part (12) being disposed around the main body (11); The housing body (2) includes a first side plate (21), a second side plate (22) and a third side plate (23). The first side plate (21) extends along the first direction (X) and the second side plate (22) extends along the second direction (Y). The first side plate (21) and the second side plate (22) are both connected to the flange of the mounting part (12). The first side plate (21), the second side plate (22) and the third side plate (23) enclose and form an accommodating space (24) for accommodating the battery cell. The connection surface between the mounting part (12) and the housing body (2) is at least partially parallel to the third direction (Z).

2. The battery pack housing according to claim 1, characterized in that, At least one connection surface between the mounting part (12) and the housing body (2) is parallel to the third direction (Z), and the other connection surfaces are perpendicular to the third direction (Z). Alternatively, all connection surfaces between the mounting part (12) and the housing body (2) are parallel to the third direction (Z).

3. The battery pack housing according to claim 2, characterized in that, The main body (11) includes a bent portion (111) that bends toward the housing body (2), and the mounting portion (12) is correspondingly disposed on the edge of the bent portion (111). The connection surface between the mounting portion (12) disposed on the bent portion (111) and the housing body (2) is parallel to the third direction (Z).

4. The battery pack housing according to claim 3, characterized in that, Two bending portions (111) are provided. The length direction of the two bending portions (111) is parallel to the first direction (X). The two bending portions (111) are positioned corresponding to the first side plate (21) so that the bending portions (111) are detachably connected to the first side plate (21) through the mounting portion (12).

5. The battery pack housing according to claim 4, characterized in that, The connection surface between the second side plate (22) and the mounting part (12) is at least partially perpendicular to the third direction (Z) so that the mounting part (12) is flange-connected to the second side plate (22).

6. The battery pack housing according to claim 2, characterized in that, The connection surface between the mounting part (12) and the first side plate (21) is located on the side wall of the first side plate (21) parallel to the third direction (Z), and the connection surface between the mounting part (12) and the second side plate (22) is located on the side wall of the second side plate (22) parallel to the third direction (Z).

7. The battery pack housing according to any one of claims 1-6, characterized in that, The first side plate (21) has a mounting cavity (211) on the side opposite to the accommodating space (24), and a mounting point (2111) is provided in the mounting cavity (211) to limit the position of the first side plate (21).

8. The battery pack housing according to claim 7, characterized in that, The mounting point (2111) is located on the surface of the mounting cavity (211) opposite to the cover (1).

9. The battery pack housing according to any one of claims 1-6, characterized in that, The battery pack housing also includes a sealing gasket (3), which is disposed between the cover (1) and the housing body (2) to achieve a sealed connection between the cover (1) and the housing body (2).

10. A battery pack, characterized in that, Includes a battery cell and a battery pack housing as described in any one of claims 1-9, wherein the battery cell is disposed within the accommodating space (24).

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